<s> [INST] <<SYS>> You are a responsible assistant committed to providing accurate and helpful responses. Avoid sharing harmful or biased content. Clarify any unclear or incorrect questions rather than providing false or misleading information. <</SYS>> What is Blepharospasm and can you explain it in depth? [/INST] Blepharospasm is any abnormal contraction of the orbicularis oculi muscle. The condition should be distinguished from the more common, and milder, involuntary quivering of an eyelid, known as myokymia, or fasciculation. In most cases, blepharospasm symptoms last for a few days and then disappear without treatment, but in some cases the twitching is chronic and persistent, causing life-long challenges. In these cases, the symptoms are often severe enough to result in functional blindness. The persons eyelids feel like they are clamping shut and will not open without great effort. People have normal eyes, but for periods of time are effectively blind due to their inability to open their eyelids. In contrast, the reflex blepharospasm is due to any pain in and around the eye.
It is of two types: essential and reflex blepharospasm. The benign essential blepharospasm (BEB) is a focal dystonia—a neurological movement disorder involving involuntary and sustained contractions of the muscles around the eyes. The term essential indicates that the cause is unknown, but fatigue, stress, or an irritant are possible contributing factors. Blepharospasm is sometimes part of benign fasciculation syndrome.
Although there is no cure, botulinum toxin injections may help temporarily. A surgical procedure known as myectomy may also be useful. BEB is a fairly rare disease, affecting only one in every 20,000 people in the United States. The word is from Greek: βλέφαρον / blepharon, eyelid, and σπασμός / spasmos, spasm, an uncontrolled muscle contraction.

Signs and symptoms
Excessive blinking and spasming of one or both eyes – characterized by uncontrollable eyelid closure of durations longer than the typical blink reflex. The spells of spasming may last for minutes or even hours
Uncontrollable contractions or twitches of the eye muscles and surrounding facial area. Some sufferers have twitching symptoms that radiate into the nose, face, cheeks, and sometimes, the neck area
Dryness of the eyes
Sensitivity to the sun and bright light

Causes
Some causes of blepharospasm have been identified; however, the causes of many cases of blepharospasm remain unknown. Some people with blepharospasm have a history of dry eyes, light sensitivity, and even fatigue. Others report no eye problems before onset of symptoms.
Some drugs can induce blepharospasm, such as those used to treat Parkinsons disease, as well as hormone treatments, including estrogen-replacement therapy for women going through menopause. Blepharospasm can also be a symptom of acute withdrawal from benzodiazepines. Prolonged use of benzodiazepines can induce blepharospasm and is a known risk factor for the development of blepharospasm.Blepharospasm may also come from abnormal functioning of the brains basal ganglia. Simultaneous dry eye and dystonias such as Meiges syndrome have been observed. Blepharospasms can be caused by concussions in some rare cases, when a blow to the back of the head damages the basal ganglia.Multiple sclerosis can cause blepharospasm.

Treatment
Drug therapy for blepharospasm has proved generally unpredictable and short-termed. Anticholinergics, tranquillizing drugs and botulinum toxin are the mostly used therapeutic options. However serious side effects can be observed as well as failure of therapy. It is therefore not surprising that new therapies are constantly being tested. In this backdrop new evidence shows Mosapride can be a safe and affordable therapeutic option for blepharospasm.Botulinum toxin injections have been used to induce localized, partial paralysis. Among most sufferers, botulinum toxin injection is the preferred treatment method. Injections are generally administered every three months, with variations based on patient response and usually give almost immediate relief (though for some it may take more than a week) of symptoms from the muscle spasms. Most patients can resume a relatively normal life with regular botulinum toxin treatments </s>


<s> [INST] <<SYS>> You are a responsible assistant committed to providing accurate and helpful responses. Avoid sharing harmful or biased content. Clarify any unclear or incorrect questions rather than providing false or misleading information. <</SYS>> What is Determinism and can you explain it in depth? [/INST] Determinism is a philosophical view, where all events are determined completely by previously existing causes. Deterministic theories throughout the history of philosophy have developed from diverse and sometimes overlapping motives and considerations. The opposite of determinism is some kind of indeterminism (otherwise called nondeterminism) or randomness. Determinism is often contrasted with free will, although some philosophers claim that the two are compatible.Determinism is often used to mean causal determinism, which in physics is known as cause-and-effect. This is the concept that events within a given paradigm are bound by causality in such a way that any state of an object or event is completely determined by its prior states. This meaning can be distinguished from other varieties of determinism mentioned below.
Debates about determinism often concern the scope of determined systems; some maintain that the entire universe is a single determinate system, and others identifying more limited determinate systems (or multiverse). Historical debates involve many philosophical positions and varieties of determinism. They include debates concerning determinism and free will, technically denoted as compatibilistic (allowing the two to coexist) and incompatibilistic (denying their coexistence is a possibility).
Determinism should not be confused with the self-determination of human actions by reasons, motives, and desires. Determinism is about interactions which affect our cognitive processes in our life. It is about the cause and the result of what we have done. Cause and result are always bounded together in cognitive processes. It assumes that if an observer has sufficient information about an object or human being, that such an observer might be able to predict every consequent move of that object or human being. Determinism rarely requires that perfect prediction be practically possible.

Varieties
"Determinism" may commonly refer to any of the following viewpoints.

Causal
Causal determinism, sometimes synonymous with historical determinism (a sort of path dependence), is "the idea that every event is necessitated by antecedent events and conditions together with the laws of nature." However, it is a broad enough term to consider that:...Ones deliberations, choices, and actions will often be necessary links in the causal chain that brings something about. In other words, even though our deliberations, choices, and actions are themselves determined like everything else, it is still the case, according to causal determinism, that the occurrence or existence of yet other things depends upon our deliberating, choosing and acting in a certain way.Causal determinism proposes that there is an unbroken chain of prior occurrences stretching back to the origin of the universe. The relation between events may not be specified, nor the origin of that universe. Causal determinists believe that there is nothing in the universe that has no cause or is self-caused.
Causal determinism has also been considered more generally as the idea that everything that happens or exists is caused by antecedent conditions. In the case of nomological determinism, these conditions are considered events also, implying that the future is determined completely by preceding events—a combination of prior states of the universe and the laws of nature. Yet they can also be considered metaphysical of origin (such as in the case of theological determinism).

Nomological
Nomological determinism, generally synonymous with physical determinism (its opposite being physical indeterminism), the most common form of causal determinism, is the notion that the past and the present dictate the future entirely and necessarily by rigid natural laws, that every occurrence results inevitably from prior events. Nomological determinism is sometimes illustrated by the thought experiment of Laplaces demon. Nomological determinism is sometimes called scientific determinism, although that is a misnomer.

Necessitarianism
Necessitarianism is closely related to the causal determinism described above. It is a metaphysical principle that denies all mere possibility; there is exactly one way for the world to be. Leucippus claimed there were no uncaused events, and that everything occurs for a reason and by necessity.

Predeterminism
Predeterminism is the idea that all events are determined in advance. The concept is often argued by invoking causal determinism, implying that there is an unbroken chain of prior occurrences stretching back to the origin of the universe. In the case of predeterminism, this chain of events has been pre-established, and human actions cannot interfere with the outcomes of this pre-established chain.
Predeterminism can be used to mean such pre-established causal determinism, in which case it is categorized as a specific type of determinism. It can also be used interchangeably with causal determinism—in the context of its capacity to determine future events. Despite this, predeterminism is often considered as independent of causal determinism.

Biological
The term predeterminism is also frequently used in the context of biology and heredity, in which case it represents a form of biological determinism, sometimes called genetic determinism. Biological determinism is the idea that each of human behaviors, beliefs, and desires are fixed by human genetic nature.
Friedrich Nietzsche explained that a human being is "determined" by his/her body, since he/she is subject to passions, impulsions and instincts.

Fatalism
Fatalism is normally distinguished from "determinism", as a form of teleological determinism. Fatalism is the idea that everything is fated to happen, so that humans have no control over their future. Fate has arbitrary power, and need not follow any causal or otherwise deterministic laws. Types of fatalism include hard theological determinism and the idea of predestination, where there is a God who determines all that humans will do. This may be accomplished either by knowing their actions in advance, via some form of omniscience or by decreeing their actions in advance.

Theological determinism
Theological determinism is a form of determinism that holds that all events that happen are either preordained (i.e., predestined) to happen by a monotheistic deity, or are destined to occur given its omniscience. Two forms of theological determinism exist, referred to as strong and weak theological determinism.Strong theological determinism is based on the concept of a creator deity dictating all events in history: "everything that happens has been predestined to happen by an omniscient, omnipotent divinity."Weak theological determinism is based on the concept of divine foreknowledge—"because Gods omniscience is perfect, what God knows about the future will inevitably happen, which means, consequently, that the future is already fixed." There exist slight variations on this categorisation, however. Some claim either that theological determinism requires predestination of all events and outcomes by the divinity—i.e., they do not classify the weaker version as theological determinism unless libertarian free will is assumed to be denied as a consequence—or that the weaker version does not constitute theological determinism at all.With respect to free will, "theological determinism is the thesis that God exists and has infallible knowledge of all true propositions including propositions about our future actions," more minimal criteria designed to encapsulate all forms of theological determinism.Theological determinism can also be seen as a form of causal determinism, in which the antecedent conditions are the nature and will of God. Some have asserted that Augustine of Hippo introduced theological determinism into Christianity in 412 CE, whereas all prior Christian authors supported free will against Stoic and Gnostic determinism. However, there are many Biblical passages that seem to support the idea of some kind of theological determinism.

Adequate determinism
Adequate determinism is the idea, because of quantum decoherence, that quantum indeterminacy can be ignored for most macroscopic events. Random quantum events "average out" in the limit of large numbers of particles (where the laws of quantum mechanics asymptotically approach the laws of classical mechanics). Stephen Hawking explains a similar idea: he says that the microscopic world of quantum mechanics is one of determined probabilities. That is, quantum effects rarely alter the predictions of classical mechanics, which are quite accurate (albeit still not perfectly certain) at larger scales. Something as large as an animal cell, then, would be "adequately determined" (even in light of quantum indeterminacy).

Many-worlds
The many-worlds interpretation accepts the linear causal sets of sequential events with adequate consistency yet also suggests constant forking of causal chains creating "multiple universes" to account for multiple outcomes from single events. Meaning the causal set of events leading to the present are all valid yet appear as a singular linear time stream within a much broader unseen conic probability field of other outcomes that "split off" from the locally observed timeline.  Under this model causal sets are still "consistent" yet not exclusive to singular iterated outcomes.
The interpretation sidesteps the exclusive retrospective causal chain problem of "could not have done otherwise" by suggesting "the other outcome does exist" in a set of parallel universe time streams that split off when the action occurred. This theory is sometimes described with the example of agent based choices but more involved models argue that recursive causal splitting occurs with all particle wave functions at play. This model is highly contested with multiple objections from the scientific community.

Philosophical varieties
Determinism in nature/nurture controversy
Although some of the above forms of determinism concern human behaviors and cognition, others frame themselves as an answer to the debate on nature and nurture. They will suggest that one factor will entirely determine behavior. As scientific understanding has grown, however, the strongest versions of these theories have been widely rejected as a single-cause fallacy. In other words, the modern deterministic theories attempt to explain how the interaction of both nature and nurture is entirely predictable. The concept of heritability has been helpful in making this distinction.

Biological determinism, sometimes called genetic determinism, is the idea that each of human behaviors, beliefs, and desires are fixed by human genetic nature.
Behaviorism involves the idea that all behavior can be traced to specific causes—either environmental or reflexive. John B. Watson and B. F. Skinner developed this nurture-focused determinism.
Cultural materialism, contends that the physical world impacts and sets constraints on human behavior.
Cultural determinism, along with social determinism, is the nurture-focused theory that the culture in which we are raised determines who we are.
Environmental determinism, also known as climatic or geographical determinism, proposes that the physical environment, rather than social conditions, determines culture. Supporters of environmental determinism often also support behavioral determinism. Key proponents of this notion have included Ellen Churchill Semple, Ellsworth Huntington, Thomas Griffith Taylor and possibly Jared Diamond, although his status as an environmental determinist is debated.

Determinism and prediction
Other deterministic theories actually seek only to highlight the importance of a particular factor in predicting the future. These theories often use the factor as a sort of guide or constraint on the future. They need not suppose that complete knowledge of that one factor would allow us to make perfect predictions.

Psychological determinism can mean that humans must act according to reason, but it can also be synonymous with some sort of psychological egoism. The latter is the view that humans will always act according to their perceived best interest.
Linguistic determinism proposes that language determines (or at least limits) the things that humans can think and say and thus know. The Sapir–Whorf hypothesis argues that individuals experience the world based on the grammatical structures they habitually use.
Economic determinism attributes primacy to economic structure over politics in the development of human history. It is associated with the dialectical materialism of Karl Marx.
Technological determinism is the theory that a societys technology drives the development of its social structure and cultural values.

Structural determinism
Structural determinism is the philosophical view that actions, events, and processes are predicated on and determined by structural factors. Given any particular structure or set of estimable components, it is a concept that emphasizes rational and predictable outcomes. Chilean biologists Humberto Maturana and Francisco Varela popularized the notion, writing that a living systems general order is maintained via a circular process of ongoing self-referral, and thus its organization and structure defines the changes it undergoes. According to the authors, a system can undergo changes of state (alteration of structure without loss of identity) or disintegrations (alteration of structure with loss of identity). Such changes or disintegrations are not ascertained by the elements of the disturbing agent, as each disturbance will only trigger responses in the respective system, which in turn, are determined by each system’s own structure.
On an individualistic level, what this means is that human beings as free and independent entities are triggered to react by external stimuli or change in circumstance. However, their own internal state and existing physical and mental capacities determine their responses to those triggers. On a much broader societal level, structural determinists believe that larger issues in the society—especially those pertaining to minorities and subjugated communities—are predominantly assessed through existing structural conditions, making change of prevailing conditions difficult, and sometimes outright impossible. For example, the concept has been applied to the politics of race in the United States of America and other Western countries such as the United Kingdom and Australia, with structural determinists lamenting structural factors for the prevalence of racism in these countries. Additionally, Marxists have conceptualized the writings of Karl Marx within the context of structural determinism as well. For example, Louis Althusser, a structural Marxist, argues that the state, in its political, economic, and legal structures, reproduces the discourse of capitalism, in turn, allowing for the burgeoning of capitalistic structures.
Proponents of the notion highlight the usefulness of structural determinism to study complicated issues related to race and gender, as it highlights often gilded structural conditions that block meaningful change. Critics call it too rigid, reductionist and inflexible. Additionally, they also criticize the notion for overemphasizing deterministic forces such as structure over the role of human agency and the ability of the people to act. These critics argue that politicians, academics, and social activists have the capability to bring about significant change despite stringent structural conditions.

With free will
Philosophers have debated both the truth of determinism, and the truth of free will. This creates the four possible positions in the figure. Compatibilism refers to the view that free will is, in some sense, compatible with determinism. The three incompatibilist positions deny this possibility. The hard incompatibilists hold that free will is incompatible with both determinism and indeterminism, the libertarians that determinism does not hold, and free will might exist, and the hard determinists that determinism does hold and free will does not exist. The Dutch philosopher Baruch Spinoza was a determinist thinker, and argued that human freedom can be achieved through knowledge of the causes that determine our desire and affections. He defined human servitude as the state of bondage of anyone who is aware of their own desires, but ignorant of the causes that determined them. However, the free or virtuous person becomes capable, through reason and knowledge, to be genuinely free, even as they are being "determined". For the Dutch philosopher, acting out of ones own internal necessity is genuine freedom while being driven by exterior determinations is akin to bondage. Spinozas thoughts on human servitude and liberty are respectively detailed in the fourth and fifth volumes of his work Ethics.
The standard argument against free will, according to philosopher J. J. C. Smart, focuses on the implications of determinism for free will. He suggests free will is denied whether determinism is true or not. He says that if determinism is true, all actions are predicted and no one is assumed to be free; however, if determinism is false, all actions are presumed to be random and as such no one seems free because they have no part in controlling what happens.

With the soul
Some determinists argue that materialism does not present a complete understanding of the universe, because while it can describe determinate interactions among material things, it ignores the minds or souls of conscious beings.
A number of positions can be delineated:

Immaterial souls are all that exist (idealism).
Immaterial souls exist and exert a non-deterministic causal influence on bodies (traditional free-will, interactionist dualism).
Immaterial souls exist but are part of a deterministic framework.
Immaterial souls exist, but exert no causal influence, free or determined (epiphenomenalism, occasionalism)
Immaterial souls do not exist – there is no mind-body dichotomy, and there is a materialistic explanation for intuitions to the contrary.

With ethics and morality
Another topic of debate is the implication that determinism has on morality.
Philosopher and incompatibilist Peter van Inwagen introduced this thesis, when arguments that free will is required for moral judgments, as such:
The moral judgment that X should not have been done implies that something else should have been done instead.
That something else should have been done instead implies that there was something else to do.
That there was something else to do, implies that something else could have been done.
That something else could have been done implies that there is free will.
If there is no free will to have done other than X we cannot make the moral judgment that X should not have been done.

History
Determinism was developed by the Greek philosophers during the 7th and 6th centuries BCE by the Pre-socratic philosophers Heraclitus and Leucippus, later Aristotle, and mainly by the Stoics. Some of the main philosophers who have dealt with this issue are Marcus Aurelius, Omar Khayyám, Thomas Hobbes, Baruch Spinoza, Gottfried Leibniz, David Hume, Baron dHolbach (Paul Heinrich Dietrich), Pierre-Simon Laplace, Arthur Schopenhauer, William James, Friedrich Nietzsche, Albert Einstein, Niels Bohr, Ralph Waldo Emerson and, more recently, John Searle, Ted Honderich, and Daniel Dennett.
Mecca Chiesa notes that the probabilistic or selectionistic determinism of B. F. Skinner comprised a wholly separate conception of determinism that was not mechanistic at all. Mechanistic determinism assumes that every event has an unbroken chain of prior occurrences, but a selectionistic or probabilistic model does not.

Western tradition
In the West, some elements of determinism have been expressed in Greece from the 6th century BCE by the Presocratics Heraclitus and Leucippus. The first notions of determinism appears to originate with the Stoics, as part of their theory of universal causal determinism. The resulting philosophical debates, which involved the confluence of elements of Aristotelian Ethics with Stoic psychology, led in the 1st–3rd centuries CE in the works of Alexander of Aphrodisias to the first recorded Western debate over determinism and freedom, an issue that is known in theology as the paradox of free will. The writings of Epictetus as well as middle Platonist and early Christian thought were instrumental in this development. Jewish philosopher Moses Maimonides said of the deterministic implications of an omniscient god: "Does God know or does He not know that a certain individual will be good or bad? If thou sayest He knows, then it necessarily follows that [that] man is compelled to act as God knew beforehand he would act, otherwise Gods knowledge would be imperfect."

Newtonian mechanics
Determinism in the West is often associated with Newtonian mechanics/physics, which depicts the physical matter of the universe as operating according to a set of fixed laws. The "billiard ball" hypothesis, a product of Newtonian physics, argues that once the initial conditions of the universe have been established, the rest of the history of the universe follows inevitably. If it were actually possible to have complete knowledge of physical matter and all of the laws governing that matter at any one time, then it would be theoretically possible to compute the time and place of every event that will ever occur (Laplaces demon). In this sense, the basic particles of the universe operate in the same fashion as the rolling balls on a billiard table, moving and striking each other in predictable ways to produce predictable results.
Whether or not it is all-encompassing in so doing, Newtonian mechanics deals only with caused events; for example, if an object begins in a known position and is hit dead on by an object with some known velocity, then it will be pushed straight toward another predictable point. If it goes somewhere else, the Newtonians argue, one must question ones measurements of the original position of the object, the exact direction of the striking object, gravitational or other fields that were inadvertently ignored, etc. Then, they maintain, repeated experiments and improvements in accuracy will always bring ones observations closer to the theoretically predicted results. When dealing with situations on an ordinary human scale, Newtonian physics has been successful. But it fails as velocities become some substantial fraction of the speed of light and when interactions at the atomic scale are studied. Before the discovery of quantum effects and other challenges to Newtonian physics, "uncertainty" was always a term that applied to the accuracy of human knowledge about causes and effects, and not to the causes and effects themselves.
Newtonian mechanics, as well as any following physical theories, are results of observations and experiments, and so they describe "how it all works" within a tolerance. However, old western scientists believed if there are any logical connections found between an observed cause and effect, there must be also some absolute natural laws behind. Belief in perfect natural laws driving everything, instead of just describing what we should expect, led to searching for a set of universal simple laws that rule the world. This movement significantly encouraged deterministic views in Western philosophy, as well as the related theological views of classical pantheism.

Eastern tradition
The idea that the entire universe is a deterministic system has been articulated in both Eastern and non-Eastern religions, philosophy, and literature.
The ancient Arabs that inhabited the Arabian Peninsula before the advent of Islam used to profess a widespread belief in fatalism (ḳadar) alongside a fearful consideration for the sky and the stars as divine beings, which they held to be ultimately responsible for every phenomena that occurs on Earth and for the destiny of humankind. Accordingly, they shaped their entire lives in accordance with their interpretations of astral configurations and phenomena.In the I Ching and philosophical Taoism, the ebb and flow of favorable and unfavorable conditions suggests the path of least resistance is effortless (see: Wu wei). In the philosophical schools of the Indian Subcontinent, the concept of karma deals with similar philosophical issues to the western concept of determinism. Karma is understood as a spiritual mechanism which causes the eternal cycle of birth, death, and rebirth (saṃsāra). Karma, either positive or negative, accumulates according to an individuals actions throughout their life, and at their death determines the nature of their next life in the cycle of Saṃsāra. Most major religions originating in India hold this belief to some degree, most notably Hinduism, Jainism, Sikhism, and Buddhism.
The views on the interaction of karma and free will are numerous, and diverge from each other. For example, in Sikhism, gods grace, gained through worship, can erase ones karmic debts, a belief which reconciles the principle of karma with a monotheistic god one must freely choose to worship. Jainists believe in compatibilism, in which the cycle of Saṃsara is a completely mechanistic process, occurring without any divine intervention. The Jains hold an atomic view of reality, in which particles of karma form the fundamental microscopic building material of the universe.

Ājīvika
In ancient India, the Ājīvika school of philosophy founded by Makkhali Gosāla (around 500 BCE), otherwise referred to as "Ājīvikism" in Western scholarship, upheld the Niyati ("Fate") doctrine of absolute fatalism or determinism, which negates the existence of free will and karma, and is therefore considered one of the nāstika or "heterodox" schools of Indian philosophy. The oldest descriptions of the Ājīvika fatalists and their founder Gosāla can be found both in the Buddhist and Jaina scriptures of ancient India. The predetermined fate of living beings and the impossibility to achieve liberation (moksha) from the eternal cycle of birth, death, and rebirth was the major distinctive philosophical and metaphysical doctrine of this heterodox school of Indian philosophy, annoverated among the other Śramaṇa movements that emerged in India during the Second urbanization (600–200 BCE).

Buddhism
Buddhist philosophy contains several concepts which some scholars describe as deterministic to various levels.
One concept which is argued to support a hard determinism is the idea of dependent origination, which claims that all phenomena (dharma) are necessarily caused by some other phenomenon, which it can be said to be dependent on, like links in a massive chain. In traditional Buddhist philosophy, this concept is used to explain the functioning of the cycle of saṃsāra; all actions exert a karmic force, which will manifest results in future lives. In other words, righteous or unrighteous actions in one life will necessarily cause good or bad responses in another.Another Buddhist concept which many scholars perceive to be deterministic is the idea of non-self, or anatta. In Buddhism, attaining enlightenment involves one realizing that in humans there is no fundamental core of being which can be called the "soul", and that humans are instead made of several constantly changing factors which bind them to the cycle of Saṃsāra.Some scholars argue that the concept of non-self necessarily disproves the ideas of free will and moral culpability. If there is no autonomous self, in this view, and all events are necessarily and unchangeably caused by others, then no type of autonomy can be said to exist, moral or otherwise. However, other scholars disagree, claiming that the Buddhist conception of the universe allows for a form of compatibilism. Buddhism perceives reality occurring on two different levels, the ultimate reality which can only be truly understood by the enlightened, and the illusory and false material reality. Therefore, Buddhism perceives free will as a notion belonging to material reality, while concepts like non-self and dependent origination belong to the ultimate reality; the transition between the two can be truly understood, Buddhists claim, by one who has attained enlightenment.

Modern scientific perspective
Generative processes
Although it was once thought by scientists that any indeterminism in quantum mechanics occurred at too small a scale to influence biological or neurological systems, there is indication that nervous systems are influenced by quantum indeterminism due to chaos theory. It is unclear what implications this has for the problem of free will given various possible reactions to the problem in the first place. Many biologists do not grant determinism: Christof Koch, for instance, argues against it, and in favour of libertarian free will, by making arguments based on generative processes (emergence). Other proponents of emergentist or generative philosophy, cognitive sciences, and evolutionary psychology, argue that a certain form of determinism (not necessarily causal) is true. They suggest instead that an illusion of free will is experienced due to the generation of infinite behaviour from the interaction of finite-deterministic set of rules and parameters. Thus the unpredictability of the emerging behaviour from deterministic processes leads to a perception of free will, even though free will as an ontological entity does not exist.

As an illustration, the strategy board-games chess and Go have rigorous rules in which no information (such as cards face-values) is hidden from either player and no random events (such as dice-rolling) happen within the game. Yet, chess and especially Go with its extremely simple deterministic rules, can still have an extremely large number of unpredictable moves. When chess is simplified to 7 or fewer pieces, however, endgame tables are available that dictate which moves to play to achieve a perfect game.  This implies that, given a less complex environment (with the original 32 pieces reduced to 7 or fewer pieces), a perfectly predictable game of chess is possible.  In this scenario, the winning player can announce that a checkmate will happen within a given number of moves, assuming a perfect defense by the losing player, or fewer moves if the defending player chooses sub-optimal moves as the game progresses into its inevitable, predicted conclusion. By this analogy, it is suggested, the experience of free will emerges from the interaction of finite rules and deterministic parameters that generate nearly infinite and practically unpredictable behavioural responses. In theory, if all these events could be accounted for, and there were a known way to evaluate these events, the seemingly unpredictable behaviour would become predictable. Another hands-on example of generative processes is John Horton Conways playable Game of Life. Nassim Taleb is wary of such models, and coined the term "ludic fallacy."

Compatibility with the existence of science
Certain philosophers of science argue that, while causal determinism (in which everything including the brain/mind is subject to the laws of causality) is compatible with minds capable of science, fatalism and predestination is not. These philosophers make the distinction that causal determinism means that each step is determined by the step before and therefore allows sensory input from observational data to determine what conclusions the brain reaches, while fatalism in which the steps between do not connect an initial cause to the results would make it impossible for observational data to correct false hypotheses. This is often combined with the argument that if the brain had fixed views and the arguments were mere after-constructs with no causal effect on the conclusions, science would have been impossible and the use of arguments would have been a meaningless waste of energy with no persuasive effect on brains with fixed views.

Mathematical models
Many mathematical models of physical systems are deterministic. This is true of most models involving differential equations (notably, those measuring rate of change over time). Mathematical models that are not deterministic because they involve randomness are called stochastic. Because of sensitive dependence on initial conditions, some deterministic models may appear to behave non-deterministically; in such cases, a deterministic interpretation of the model may not be useful due to numerical instability and a finite amount of precision in measurement. Such considerations can motivate the consideration of a stochastic model even though the underlying system is governed by deterministic equations.

Quantum and classical mechanics
Day-to-day physics
Since the beginning of the 20th century, quantum mechanics—the physics of the extremely small—has revealed previously concealed aspects of events. Before that, Newtonian physics—the physics of everyday life—dominated. Taken in isolation (rather than as an approximation to quantum mechanics), Newtonian physics depicts a universe in which objects move in perfectly determined ways. At the scale where humans exist and interact with the universe, Newtonian mechanics remain useful, and make relatively accurate predictions (e.g. calculating the trajectory of a bullet). But whereas in theory, absolute knowledge of the forces accelerating a bullet would produce an absolutely accurate prediction of its path, modern quantum mechanics casts reasonable doubt on this main thesis of determinism.

Quantum realm
Quantum physics works differently in many ways from Newtonian physics. Physicist Aaron D. OConnell explains that understanding our universe, at such small scales as atoms, requires a different logic than day-to-day life does. OConnell does not deny that it is all interconnected: the scale of human existence ultimately does emerge from the quantum scale. OConnell argues that we must simply use different models and constructs when dealing with the quantum world. Quantum mechanics is the product of a careful application of the scientific method, logic and empiricism. The Heisenberg uncertainty principle is frequently confused with the observer effect. The uncertainty principle actually describes how precisely we may measure the position and momentum of a particle at the same time—if we increase the accuracy in measuring one quantity, we are forced to lose accuracy in measuring the other. "These uncertainty relations give us that measure of freedom from the limitations of classical concepts which is necessary for a consistent description of atomic processes."

This is where statistical mechanics come into play, and where physicists begin to require rather unintuitive mental models: A particles path simply cannot be exactly specified in its full quantum description. "Path" is a classical, practical attribute in our everyday life, but one that quantum particles do not meaningfully possess. The probabilities discovered in quantum mechanics do nevertheless arise from measurement (of the perceived path of the particle). As Stephen Hawking explains, the result is not traditional determinism, but rather determined probabilities. In some cases, a quantum particle may indeed trace an exact path, and the probability of finding the particles in that path is one (certain to be true). In fact, as far as prediction goes, the quantum development is at least as predictable as the classical motion, but the key is that it describes wave functions that cannot be easily expressed in ordinary language. As far as the thesis of determinism is concerned, these probabilities, at least, are quite determined. These findings from quantum mechanics have found many applications, and allow us to build transistors and lasers. Put another way: personal computers, Blu-ray players and the Internet all work because humankind discovered the determined probabilities of the quantum world.On the topic of predictable probabilities, the double-slit experiments are a popular example. Photons are fired one-by-one through a double-slit apparatus at a distant screen. They do not arrive at any single point, nor even the two points lined up with the slits (the way it might be expected of bullets fired by a fixed gun at a distant target). Instead, the light arrives in varying concentrations at widely separated points, and the distribution of its collisions with the target can be calculated reliably. In that sense the behavior of light in this apparatus is deterministic, but there is no way to predict where in the resulting interference pattern any individual photon will make its contribution (although, there may be ways to use weak measurement to acquire more information without violating the uncertainty principle).
Some (including Albert Einstein) have argued that the inability to predict any more than probabilities is simply due to ignorance. The idea is that, beyond the conditions and laws can be observed or deduced, there are also hidden factors or "hidden variables" that determine absolutely in which order photons reach the detector screen. They argue that the course of the universe is absolutely determined, but that humans are screened from knowledge of the determinative factors. So, they say, it only appears that things proceed in a merely probabilistically determinative way. In actuality, they proceed in an absolutely deterministic way.
John S. Bell criticized Einsteins work in his famous Bells theorem, which, under a strict set of assumptions, demonstrates that quantum mechanics can make statistical predictions that would be violated if local hidden variables really existed. A number of experiments have tried to verify such predictions, and so far they do not appear to be violated. Current experiments continue to verify the result, including the 2015 "Loophole Free Test" that plugged all known sources of error and the 2017 "Cosmic Bell Test" experiment that used cosmic data streaming from different directions toward the Earth, precluding the possibility the sources of data could have had prior interactions.
Bells theorem has been criticized from the perspective of its strict set of assumptions. A foundational assumption to quantum mechanics is the Principle of locality. To abandon this assumption would require the construction of a non-local hidden variable theory. Therefore, it is possible to augment quantum mechanics with non-local hidden variables to achieve a deterministic theory that is in agreement with experiment. An example is the Bohm interpretation of quantum mechanics. Bohms Interpretation, though, violates special relativity and it is highly controversial whether or not it can be reconciled without giving up on determinism.
Another foundational assumption to quantum mechanics is that of free will, which has been argued to be foundational to the scientific method as a whole. Bell acknowledged that abandoning this assumption would both allow for the maintenance of determinism as well as locality. This perspective is known as superdeterminism, and is defended by some physicists such as Sabine Hossenfelder and Tim Palmer.More advanced variations on these arguments include quantum contextuality, by Bell, Simon B. Kochen and Ernst Specker, which argues that hidden variable theories cannot be "sensible", meaning that the values of the hidden variables inherently depend on the devices used to measure them.
This debate is relevant because there are possibly specific situations in which the arrival of an electron at a screen at a certain point and time would trigger one event, whereas its arrival at another point would trigger an entirely different event (e.g. see Schrödingers cat – a thought experiment used as part of a deeper debate).
Thus, quantum physics casts reasonable doubt on the traditional determinism of classical, Newtonian physics in so far as reality does not seem to be absolutely determined. This was the subject of the famous Bohr–Einstein debates between Einstein and Niels Bohr and there is still no consensus.Adequate determinism (see Varieties, above) is the reason that Stephen Hawking calls libertarian free will "just an illusion".

See also
References
Notes
Bibliography
Daniel Dennett (2003) Freedom Evolves. Viking Penguin.
John Earman (2007) "Aspects of Determinism in Modern Physics" in Butterfield, J., and Earman, J., eds., Philosophy of Physics, Part B. North Holland: 1369–1434.
George Ellis (2005) "Physics and the Real World", Physics Today.
Epstein, J.M. (1999). "Agent Based Models and Generative Social Science". Complexity. IV (5): 41–60. Bibcode:1999Cmplx...4e..41E. CiteSeerX 10.1.1.118.546. doi:10.1002/(sici)1099-0526(199905/06)4:5<41::aid-cplx9>3.0.co;2-f.
Epstein, J.M. and Axtell R. (1996) Growing Artificial Societies – Social Science from the Bottom. MIT Press.
Harris, James A. (2005) Of Liberty and Necessity: The Free Will Debate in Eighteenth-Century British Philosophy. Clarendon Press.
Kenrick, D. T.; Li, N. P.; Butner, J. (2003). "Dynamical evolutionary psychology: Individual decision rules and emergent social norms" (PDF). Psychological Review. 110 (1): 3–28. CiteSeerX 10.1.1.526.5218. doi:10.1037/0033-295x.110.1.3. PMID 12529056. S2CID 43306158.
Albert Messiah, Quantum Mechanics, English translation by G. M. Temmer of Mécanique Quantique, 1966, John Wiley and Sons, vol. I, chapter IV, section III.
Ernest Nagel (3 March 1960). "Determinism in history". Philosophy and Phenomenological Research. 20 (3): 291–317. doi:10.2307/2105051. JSTOR 2105051. (Online version found here)
John T Roberts (2006) </s>


<s> [INST] <<SYS>> You are a responsible assistant committed to providing accurate and helpful responses. Avoid sharing harmful or biased content. Clarify any unclear or incorrect questions rather than providing false or misleading information. <</SYS>> What is Retinal haemorrhage and can you explain it in depth? [/INST] Retinal hemorrhage (UK English: retinal haemorrhage) is a disorder of the eye in which bleeding occurs in the retina, the light sensitive tissue, located on the back wall of the eye.  There are photoreceptor cells in the retina called rods and cones, which transduce light energy into nerve signals that can be processed by the brain to form visual images. Retinal hemorrhage is strongly associated with child abuse in infants and young children and often leaves such abused infants permanently blind. In older children and adults, retinal hemorrhage can be caused by several medical conditions such as hypertension, retinal vein occlusion (a blockage of a retinal vein), anemia, leukemia or diabetes.

Signs and symptoms
At the early stage, a retinal hemorrhage may not show any symptom at all.
Some symptoms may include:

Seeing floaters in the vision
Seeing cobwebs in the vision
Seeing haze or shadows
Distorted vision
Rapid flashes of light in peripheral vision
Red tint to vision
Blurriness
Sudden blindness
Headache

Causes
In adults, retinal hemorrhages are largely spontaneous, secondary to chronic medical conditions such as hypertension. They also commonly occur in high altitude climbers, most likely due to the effects of systemic hypoxia on the eye. Risk is correlated with the maximum altitude reached, duration of exposure to high altitude conditions, and climb rate.In infants, retinal hemorrhages (RH) are highly associated with child abuse. The incidence of RH in abusive head trauma is approximately 85%. In a comprehensive review of 62 studies comprising 998 children, 504 of whom were abused, RH were found in 78% of cases of abusive head trauma (AHT) versus 5% of the cases of non-abusive head trauma. In a child with head trauma and RH, the odds ratio that this is AHT is 14.7 (95% CI 6.39, 33.62) and the probability of abuse is 91% </s>


<s> [INST] <<SYS>> You are a responsible assistant committed to providing accurate and helpful responses. Avoid sharing harmful or biased content. Clarify any unclear or incorrect questions rather than providing false or misleading information. <</SYS>> What is Employment and can you explain it in depth? [/INST] Employment is a relationship between two parties regulating the provision of paid labour services.  Usually based on a contract, one party, the employer, which might be a corporation, a not-for-profit organization, a co-operative, or any other entity, pays the other, the employee, in return for carrying out assigned work. Employees work in return for wages, which can be paid on the basis of an hourly rate, by piecework or an annual salary, depending on the type of work an employee does, the prevailing conditions of the sector and the bargaining power between the parties. Employees in some sectors may receive gratuities, bonus payments or stock options. In some types of employment, employees may receive benefits in addition to payment. Benefits may include health insurance, housing, disability insurance. Employment is typically governed by employment laws, organisation or legal contracts.

Employees and employers
An employee contributes labour and expertise to an endeavor of an employer or of a person conducting a business or undertaking (PCB) and is usually hired to perform specific duties which are packaged into a job. In a corporate context, an employee is a person who is hired to provide services to a company on a regular basis in exchange for compensation and who does not provide these services as part of an independent business.

Independent contractor
An issue that arises in most companies, especially the ones that are in the gig economy, is the classification of workers. A lot of workers that fulfill gigs are often hired as independent contractors.
To categorize a worker as an independent contractor rather than an employee, an independent contractor must agree with the client on what the finished work product will be and then the contractor controls the means and manner of achieving the desired outcome. Secondly, an independent contractor offers services to the public at large, not just to one business, and is responsible for disbursing payments from the client, paying unreimbursed expenses, and providing his or her own tools to complete the job. Third, the relationship of the parties is often evidenced by a written agreement that specifies that the worker is an independent contractor and is not entitled to employee benefits; the services provided by the worker are not key to the business; and the relationship is not permanent.As a general principle of employment law, in the United States, there is a difference between an agent and an independent contractor. The default status of a worker is an employee unless specific guidelines are met, which can be determined by the ABC test. Thus, clarifying whether someone who performs work is an independent contractor or an employee from the beginning, and treating them accordingly, can save a company from trouble later on.
Provided key circumstances, including ones such as that the worker is paid regularly, follows set hours of work, is supplied with tools from the employer, is closely monitored by the employer, acting on behalf of the employer, only works for one employer at a time, they are considered an employee, and the employer will generally be liable for their actions and be obliged to give them benefits. Similarly, the employer is the owner of any invention created by an employee “hired to invent,” even in the absence of an assignment of inventions. In contrast, a company commissioning a work by an independent contractor will not own the copyright unless the company secures either a written contract stating that it is a “work made for hire” or a written assignment of the copyright. In order to stay protected and avoid lawsuits, an employer has to be aware of that distinction.

Employer–worker relationship
Employer and managerial control within an organization rests at many levels and has important implications for staff and productivity alike, with control forming the fundamental link between desired outcomes and actual processes. Employers must balance interests such as decreasing wage constraints with a maximization of labor productivity in order to achieve a profitable and productive employment relationship.

Labor acquisition / hiring
The main ways for employers to find workers and for people to find employers are via jobs listings in newspapers (via classified advertising) and online, also called job boards. Employers and job seekers also often find each other via professional recruitment consultants which receive a commission from the employer to find, screen and select suitable candidates. However, a study has shown that such consultants may not be reliable when they fail to use established principles in selecting employees. A more traditional approach is with a "Help Wanted" sign in the establishment (usually hung on a window or door or placed on a store counter).  Evaluating different employees can be quite laborious but setting up different techniques to analyze their skills to measure their talents within the field can be best through assessments.  Employer and potential employee commonly take the additional step of getting to know each other through the process of a job interview.

Training and development
Training and development refers to the employers effort to equip a newly hired employee with the necessary skills to perform at the job, and to help the employee grow within the organization.  An appropriate level of training and development helps to improve employees job satisfaction.

Remuneration
There are many ways that employees are paid, including by hourly wages, by piecework, by yearly salary, or by gratuities (with the latter often being combined with another form of payment). In sales jobs and real estate positions, the employee may be paid a commission, a percentage of the value of the goods or services that they have sold. In some fields and professions (e.g., executive jobs), employees may be eligible for a bonus if they meet certain targets. Some executives and employees may be paid in shares or stock options, a compensation approach that has the added benefit, from the companys point of view, of helping to align the interests of the compensated individual with the performance of the company.
Under the faithless servant doctrine, a doctrine under the laws of a number of states in the United States, and most notably New York State law, an employee who acts unfaithfully towards his employer must forfeit all of the compensation he received during the period of his disloyalty.

Employee benefits
Employee benefits are various non-wage compensation provided to employees in addition to their wages or salaries.  The benefits can include:  housing (employer-provided or employer-paid), group insurance (health, dental, life etc.), disability income protection, retirement benefits, daycare, tuition reimbursement, sick leave, vacation (paid and non-paid), social security, profit sharing, funding of education, and other specialized benefits. In some cases, such as with workers employed in remote or isolated regions, the benefits may include meals.  Employee benefits can improve the relationship between employee and employer and lowers staff turnover.

Organizational justice
Organizational justice is an employees perception and judgement of employers treatment in the context of fairness or justice.  The resulting actions to influence the employee-employer relationship is also a part of organizational justice.

Workforce organizing
Employees can organize into trade or labor unions, which represent the workforce to collectively bargain with the management of organizations about working, and contractual conditions and services.

Ending employment
Usually, either an employee or employer may end the relationship at any time, often subject to a certain notice period. This is referred to as at-will employment. The contract between the two parties specifies the responsibilities of each when ending the relationship and may include requirements such as notice periods, severance pay, and security measures. A contract forbidding an employee from leaving their employment, under penalty of a surety bond, is referred to as an employment bond. In some professions, notably teaching, civil servants, university professors, and some orchestra jobs, some employees may have tenure, which means that they cannot be dismissed at will. Another type of termination is a layoff.

Wage labor
Wage labor is the socioeconomic relationship between a worker and an employer, where the worker sells their labor under a formal or informal employment contract. These transactions usually occur in a labor market where wages are market-determined. In exchange for the wages paid, the work product generally becomes the undifferentiated property of the employer, except for special cases such as the vesting of intellectual property patents in the United States where patent rights are usually vested in the original personal inventor. A wage laborer is a person whose primary means of income is from the selling of his or her labor in this way.In modern mixed economies such as that of the OECD countries, it is currently the dominant form of work arrangement. Although most work occurs following this structure, the wage work arrangements of  CEOs, professional employees, and professional contract workers are sometimes conflated with class assignments, so that "wage labor" is considered to apply only to unskilled, semi-skilled or manual labor.

Wage slavery
Wage labor, as institutionalized under todays market economic systems, has been criticized, especially by socialists, using the pejorative term wage slavery. Socialists draw parallels between the trade of labor as a commodity and slavery. Cicero is also known to have suggested such parallels.The American philosopher John Dewey posited that until "industrial feudalism" is replaced by "industrial democracy", politics will be "the shadow cast on society by big business". Thomas Ferguson has postulated in his investment theory of party competition that the undemocratic nature of economic institutions under capitalism causes elections to become occasions when blocs of investors coalesce and compete to control the state plus cities.

Employment contract
Australia
Australian employment has been governed by the Fair Work Act since 2009.

Bangladesh
Bangladesh Association of International Recruiting Agencies (BAIRA) is an association of national level with its international reputation of co-operation and welfare of the migrant workforce as well as its approximately 1200 members agencies in collaboration with and support from the Government of Bangladesh.

Canada
In the Canadian province of Ontario, formal complaints can be brought to the Ministry of Labour. In the province of Quebec, grievances can be filed with the Commission des normes du travail.

Germany
Two of the prominent examples of work and employment contracts in Germany are the Werksvertrag or the Arbeitsvertrag, which is a form of Dienstleistungsvertrag (service-oriented contract). An Arbeitsvertrag can also be temporary, whereas a temporary worker is working under Zeitarbeit or Leiharbeit. Another employment setting is Arbeitnehmerüberlassung (ANÜ).

India
India has options for a fixed term contract or a permanent contract. Both contracts are entitled to minimum wages, fixed working hours and social security contributions.

Pakistan
Pakistan has no contract Labor, Minimum Wage and Provident Funds Acts. Contract labor in Pakistan must be paid minimum wage and certain facilities are to be provided to labor. However, the Acts are not yet fully implemented.

Philippines
In the Philippines, employment is regulated by the Department of Labor and Employment.

Sweden
According to Swedish law, there are three types of employment.

Test employment (swe: Provanställning), where the employer hires a person for a test period of 6 months maximum. The employment can be ended at any time without giving any reason. This type of employment can be offered only once per employer and in employee combination. Usually, a time limited or normal employment is offered after a test employment.
Time limited employment (swe: Tidsbegränsad anställning). The employer hires a person for a specified time. Usually, they are extended for a new period. Total maximum two years per employer and employee combination, then it automatically counts as a normal employment.
Normal employment (swe: Tillsvidareanställning / Fast anställning), which has no time limit (except for retirement etc.). It can still be ended for two reasons: personal reason, immediate end of employment only for strong reasons such as crime, or lack of work tasks (swe: Arbetsbrist), cancellation of employment, usually because of bad income for the company. There is a cancellation period of 1–6 months, and rules for how to select employees, basically those with shortest employment time shall be cancelled first.There are no laws about minimum salary in Sweden. Instead, there are agreements between employer organizations and trade unions about minimum salaries, and other employment conditions.
There is a type of employment contract which is common but not regulated in law, and that is Hour employment (swe: Timanställning), which can be Normal employment (unlimited), but the work time is unregulated and decided per immediate need basis. The employee is expected to be answering the phone and come to work when needed, e.g. when someone is ill and absent from work. They will receive salary only for actual work time and can in reality be fired for no reason by not being called anymore. This type of contract is common in the public sector.

United Kingdom
In the United Kingdom, employment contracts are categorized by the government into the following types:
Fixed-term contract: last for a certain length of time, are set in advance, end when a specific task is completed, ends when a specific event takes place.
Full-time or part-time contract: has no defined length of time, can be terminated by either party, is to accomplish a specific task, specified number of hours.
Agency staff
Freelancers, Consultants and Contractors
Zero-hour contracts

United States
For purposes of U.S. federal income tax withholding, 26 U.S.C. § 3401(c) provides a definition for the term "employee" specific to chapter 24 of the Internal Revenue Code:

"For purposes of this chapter, the term "employee" includes an officer, employee, or elected official of the United States, a State, or any political subdivision thereof, or the District of Columbia, or any agency or instrumentality of any one or more of the foregoing. The term "employee" also includes an officer of a corporation." This definition does not exclude all those who are commonly known as employees. "Similarly, Latham’s instruction which indicated that under 26 U.S.C. § 3401(c) the category of ‘employee’ does not include privately employed wage earners is a preposterous reading of the statute. It is obvious that within the context of both statutes the word ‘includes’ is a term of enlargement not of limitation, and the reference to certain entities or categories is not intended to exclude all others."Employees are often contrasted with independent contractors, especially when there is dispute as to the workers entitlement to have matching taxes paid, workers compensation, and unemployment insurance benefits. However, in September 2009, the court case of Brown v. J. Kaz, Inc. ruled that independent contractors are regarded as employees for the purpose of discrimination laws if they work for the employer on a regular basis, and said employer directs the time, place, and manner of employment.In non-union work environments, in the United States, unjust termination complaints can be brought to the United States Department of Labor.Labor unions are legally recognized as representatives of workers in many industries in the United States.  Their activity today centers on collective bargaining over wages, benefits, and working conditions for their membership, and on representing their members in disputes with management over violations of contract provisions. Larger unions also typically engage in lobbying activities and electioneering at the state and federal level.Most unions in America are aligned with one of two larger umbrella organizations: the AFL–CIO created in 1955, and the Change to Win Federation which split from the AFL–CIO in 2005. Both advocate policies and legislation on behalf of workers in the United States and Canada, and take an active role in politics. The AFL–CIO is especially concerned with global trade issues.American business theorist Jeffrey Pfeffer posits that contemporary employment practices and employer commonalities in the United States, including toxic working environments, job insecurity, long hours and increased performance pressure from management, are responsible for 120,000 excess deaths annually, making the workplace the fifth leading cause of death in the United States.

Age-related issues
Younger age workers
Young workers are at higher risk for occupational injury and face certain occupational hazards at a higher rate; this is generally due to their employment in high-risk industries. For example, in the United States, young people are injured at work at twice the rate of their older counterparts. These workers are also at higher risk for motor vehicle accidents at work, due to less work experience, a lower use of seat belts, and higher rates of distracted driving. To mitigate this risk, those under the age of 17 are restricted from certain types of driving, including transporting people and goods under certain circumstances.High-risk industries for young workers include agriculture, restaurants, waste management, and mining. In the United States, those under the age of 18 are restricted from certain jobs that are deemed dangerous under the Fair Labor Standards Act.Youth employment programs are most effective when they include both theoretical classroom training and hands-on training with work placements.In the conversation of employment among younger aged workers, youth unemployment has also been monitored. Youth unemployment rates tend to be higher than the adult rates in every country in the world.

Older age workers
Those older than the statutory defined retirement age may continue to work, either out of enjoyment or necessity. However, depending on the nature of the job, older workers may need to transition into less-physical forms of work to avoid injury. Working past retirement age also has positive effects, because it gives a sense of purpose and allows people to maintain social networks and activity levels. Older workers are often found to be discriminated against by employers.

Working poor
Employment is no guarantee of escaping poverty, the International Labour Organization (ILO) estimates that as many as 40% of workers are poor, not earning enough to keep their families above the $2 a day poverty line. For instance, in India most of the chronically poor are wage earners in formal employment, because their jobs are insecure and low paid and offer no chance to accumulate wealth to avoid risks. According to the UNRISD, increasing labor productivity appears to have a negative impact on job creation: in the 1960s, a 1% increase in output per worker was associated with a reduction in employment growth of 0.07%, by the first decade of this century the same productivity increase implies reduced employment growth by 0.54%. Both increased employment opportunities and increased labor productivity (as long as it also translates into higher wages) are needed to tackle poverty. Increases in employment without increases in productivity leads to a rise in the number of "working poor", which is why some experts are now promoting the creation of "quality" and not "quantity" in labor market policies. This approach does highlight how higher productivity has helped reduce poverty in East Asia, but the negative impact is beginning to show. In Vietnam, for example, employment growth has slowed while productivity growth has continued. Furthermore, productivity increases do not always lead to increased wages, as can be seen in the United States, where the gap between productivity and wages has been rising since the 1980s.Researchers at the Overseas Development Institute argue that there are differences across economic sectors in creating employment that reduces poverty. 24 instances of growth were examined, in which 18 reduced poverty. This study showed that other sectors were just as important in reducing unemployment, such as manufacturing. The services sector is most effective at translating productivity growth into employment growth. Agriculture provides a safety net for jobs and economic buffer when other sectors are struggling.

Models of the employment relationship
Scholars conceptualize the employment relationship in various ways. A key assumption is the extent to which the employment relationship necessarily includes conflicts of interests between employers and employees, and the form of such conflicts. In economic theorizing, the labor market mediates all such conflicts such that employers and employees who enter into an employment relationship are assumed to find this arrangement in their own self-interest. In human resource management theorizing, employers and employees are assumed to have shared interests (or a unity of interests, hence the label “unitarism”). Any conflicts that exist are seen as a manifestation of poor human resource management policies or interpersonal clashes such as personality conflicts, both of which can and should be managed away. From the perspective of pluralist industrial relations, the employment relationship is characterized by a plurality of stakeholders with legitimate interests (hence the label “pluralism), and some conflicts of interests are seen as inherent in the employment relationship (e.g., wages v. profits). Lastly, the critical paradigm emphasizes antagonistic conflicts of interests between various groups (e.g., the competing capitalist and working classes in a Marxist framework) that are part of a deeper social conflict of unequal power relations. As a result, there are four common models of employment:
Mainstream economics: employment is seen as a mutually advantageous transaction in a free market between self-interested legal and economic equals
Human resource management (unitarism): employment is a long-term partnership of employees and employers with common interests
Pluralist industrial relations: employment is a bargained exchange between stakeholders with some common and some competing economic interests and unequal bargaining power due to imperfect labor markets
Critical industrial relations: employment is an unequal power relation between competing groups that is embedded in and inseparable from systemic inequalities throughout the socio-politico-economic system.These models are important because they help reveal why individuals hold differing perspectives on human resource management policies, labor unions, and employment regulation. For example, human resource management policies are seen as dictated by the market in the first view, as essential mechanisms for aligning the interests of employees and employers and thereby creating profitable companies in the second view, as insufficient for looking out for workers’ interests in the third view, and as manipulative managerial tools for shaping the ideology and structure of the workplace in the fourth view.

Academic literature
Literature on the employment impact of economic growth and on how growth is associated with employment at a macro, sector and industry level was aggregated in 2013.Researchers found evidence to suggest growth in manufacturing and services have good impact on employment. They found GDP growth on employment in agriculture to be limited, but that value-added growth had a relatively larger impact. The impact on job creation by industries/economic activities as well as the extent of the body of evidence and the key studies. For extractives, they again found extensive evidence suggesting growth in the sector has limited impact on employment. In textiles, however, although evidence was low, studies suggest growth there positively contributed to job creation. In agri-business and food processing, they found impact growth to be positive.They found that most available literature focuses on OECD and middle-income countries somewhat, where economic growth impact has been shown to be positive on employment. The researchers didnt find sufficient evidence to conclude any impact of growth on employment in LDCs despite some pointing to the positive impact, others point to limitations. They recommended that complementary policies are necessary to ensure economic growths positive impact on LDC employment. With trade, industry and investment, they only found limited evidence of positive impact on employment from industrial and investment policies and for others, while large bodies of evidence does exist, the exact impact remains contested.Researchers have also explored the relationship between employment and illicit activities. Using evidence from Africa, a research team found that a program for Liberian ex-fighters reduced work hours on illicit activities. The employment program also reduced interest in mercenary work in nearby wars. The study concludes that while the use of capital inputs or cash payments for peaceful work created a reduction in illicit activities, the impact of training alone is rather low.

Globalization and employment relations
The balance of economic efficiency and social equity is the ultimate debate in the field of employment relations. By meeting the needs of the employer; generating profits to establish and maintain economic efficiency; whilst maintaining a balance with the employee and creating social equity that benefits the worker so that he/she can fund and enjoy healthy living; proves to be a continuous revolving issue in westernized societies.Globalization has affected these issues by creating certain economic factors that disallow or allow various employment issues. Economist Edward Lee (1996) studies the effects of globalization and summarizes the four major points of concern that affect employment relations:

International competition, from the newly industrialized countries, will cause unemployment growth and increased wage disparity for unskilled workers in industrialized countries. Imports from low-wage countries exert pressure on the manufacturing sector in industrialized countries and foreign direct investment (FDI) is attracted away from the industrialized nations, towards low-waged countries.
Economic liberalization will result in unemployment and wage inequality in developing countries. This happens as job losses in uncompetitive industries outstrip job opportunities in new industries.
Workers will be forced to accept worsening wages and conditions, as a global labor market results in a “race to the bottom”. Increased international competition creates a pressure to reduce the wages and conditions of workers.
Globalization reduces the autonomy of the nation state. Capital is increasingly mobile and the ability of the state to regulate economic activity is reduced.What also results from Lees (1996) findings is that in industrialized countries an average of almost 70 per cent of workers are employed in the service sector, most of which consists of non-tradable activities. As a result, workers are forced to become more skilled and develop sought after trades, or find other means of survival. Ultimately this is a result of changes and trends of employment, an evolving workforce, and globalization that is represented by a more skilled and increasing highly diverse labor force, that are growing in non standard forms of employment (Markey, R. et al. 2006).

Alternatives
Subcultures
Various youth subcultures have been associated with not working, such as the hippie subculture in the 1960s and 1970s (which endorsed the idea of "dropping out" of society) and the punk subculture.

Post-secondary education
One of the alternatives to work is engaging in post-secondary education at a college, university or professional school. One of the major costs of obtaining a post-secondary education is the opportunity cost of forgone wages due to not working. At times when jobs are hard to find, such as during recessions, unemployed individuals may decide to get post-secondary education, because there is less of an opportunity cost.

Social assistance
In some countries, individuals who are not working can receive social assistance support (e.g., welfare or food stamps) to enable them to rent housing, buy food, repair or replace household goods, maintenance of children and observe social customs that require financial expenditure.

Volunteerism
Workers who are not paid wages, such as volunteers who perform tasks for charities, hospitals or not-for-profit organizations, are generally not considered employed. One exception to this is an internship, an employment situation in which the worker receives training or experience (and possibly college credit) as the chief form of compensation.

Indentured servitude and slavery
Those who work under obligation for the purpose of fulfilling a debt, such as indentured servants, or as property of the person or entity they work for, such as slaves, do not receive pay for their services and are not considered employed. Some historians suggest that slavery is older than employment, but both arrangements have existed for all recorded history. Indentured servitude and slavery are not considered compatible with human rights or with democracy.

Self-employment
See also
Notes and references
General bibliography
Acocella, Nicola (2007). Social pacts, employment and growth: a reappraisal of Ezio Tarantellis thought. Heidelberg: Springer Verlag. ISBN 978-3-7908-1915-1.
Anderson, Elizabeth (2017). Private Government: How Employers Rule Our Lives (and Why We Dont Talk about It). Princeton, NJ: Princeton University Press. ISBN 978-0-691-17651-2.
Dubin, Robert (1958). The World of Work: Industrial Society and Human Relations. Englewood Cliffs, N.J: Prentice-Hall. p. 213. OCLC 964691.
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<s> [INST] <<SYS>> You are a responsible assistant committed to providing accurate and helpful responses. Avoid sharing harmful or biased content. Clarify any unclear or incorrect questions rather than providing false or misleading information. <</SYS>> What is Sunburn and can you explain it in depth? [/INST] Sunburn is a form of radiation burn that affects living tissue, such as skin, that results from an overexposure to ultraviolet (UV) radiation, usually from the Sun. Common symptoms in humans and animals include: red or reddish skin that is hot to the touch or painful, general fatigue, and mild dizziness. Other symptoms include blistering, peeling skin, swelling, itching, and nausea. Excessive UV radiation is the leading cause of (primarily) non-malignant skin tumors, and in extreme cases can be life-threatening.  Sunburn is an inflammatory response in the tissue triggered by direct DNA damage by UV radiation. When the cells DNA is overly damaged by UV radiation, type I cell-death is triggered and the tissue is replaced.Sun protective measures including sunscreen and sun protective clothing are widely accepted to prevent sunburn and some types of skin cancer. Special populations, including children, are especially susceptible to sunburn and protective measures should be used to prevent damage.

Signs and symptoms
Typically, there is initial redness, followed by varying degrees of pain, proportional in severity to both the duration and intensity of exposure.
Other symptoms can include blistering, swelling (edema), itching  (pruritus), peeling skin, rash, nausea, fever, chills, and fainting (syncope). Also, a small amount of heat is given off from the burn, caused by the concentration of blood in the healing process, giving a warm feeling to the affected area. Sunburns may be classified as superficial, or partial thickness burns. Blistering is a sign of second degree sunburn.

Variations
Minor sunburns typically cause nothing more than slight redness and tenderness to the affected areas. In more serious cases, blistering can occur. Extreme sunburns can be painful to the point of debilitation and may require hospital care.

Duration
Sunburn can occur in less than 15 minutes, and in seconds when exposed to non-shielded welding arcs or other sources of intense ultraviolet light. Nevertheless, the inflicted harm is often not immediately obvious.
After the exposure, skin may turn red in as little as 30 minutes but most often takes 2 to 6 hours. Pain is usually strongest 6 to 48 hours after exposure. The burn continues to develop for 1 to 3 days, occasionally followed by peeling skin in 3 to 8 days. Some peeling and itching may continue for several weeks.

Skin cancer
Ultraviolet radiation causes sunburns and increases the risk of three types of skin cancer: melanoma, basal-cell carcinoma and squamous-cell carcinoma. Of greatest concern is that the melanoma risk increases in a dose-dependent manner with the number of a persons lifetime cumulative episodes of sunburn. It has been estimated that over 1/3 of melanomas in the United States and Australia could be prevented with regular sunscreen use.

Causes
Sunburn is caused by UV radiation from the sun, but "sunburn" may result from artificial sources, such as tanning lamps, welding arcs, or ultraviolet germicidal irradiation. It is a reaction of the body to direct DNA damage from UVB light. This damage is mainly the formation of a thymine dimer. The damage is recognized by the body, which then triggers several defense mechanisms, including DNA repair to revert the damage, apoptosis and peeling to remove irreparably damaged skin cells, and increased melanin production to prevent future damage.
Melanin readily absorbs UV wavelength light, acting as a photoprotectant. By preventing UV photons from disrupting chemical bonds, melanin inhibits both the direct alteration of DNA and the generation of free radicals, thus indirect DNA damage. However, human melanocytes contain over 2,000 genomic sites that are highly sensitive to UV, and such sites can be up to 170-fold more sensitive to UV induction of cyclobutane pyrimidine dimers than the average site  These sensitive sites often occur at biologically significant locations near genes.
Sunburn causes an inflammation process, including production of prostanoids and bradykinin. These chemical compounds increase sensitivity to heat by reducing the threshold of heat receptor (TRPV1) activation from 109 °F (43 °C) to 85 °F (29 °C). The pain may be caused by overproduction of a protein called CXCL5, which activates nerve fibers.Skin type determines the ease of sunburn. In general, people with lighter skin tone and limited capacity to develop a tan after UV radiation exposure have a greater risk of sunburn. The Fitzpatricks Skin phototypes classification describes the normal variations of skin responses to UV radiation. Persons with type I skin have the greatest capacity to sunburn and type VI have the least capacity to burn. However, all skin types can develop sunburn.Fitzpatricks skin phototypes:

Type 0: Albino
Type I: Pale white skin, burns easily, does not tan
Type II: White skin, burns easily, tans with difficulty
Type III: White skin, may burn but tans easily
Type IV: Light brown/olive skin, hardly burns, tans easily
Type V: Brown skin, usually does not burn, tans easily
Type VI: Black skin, very unlikely to burn, becomes darker with UV radiation exposureAge also affects how skin reacts to sun. Children younger than six and adults older than sixty are more sensitive to sunlight.There are certain genetic conditions, for example xeroderma pigmentosum, that increase a persons susceptibility to sunburn and subsequent skin cancers. These conditions involve defects in DNA repair mechanisms which in turn decreases the ability to repair DNA that has been damaged by UV radiation.

Medications
The risk of a sunburn can be increased by pharmaceutical products that sensitize users to UV radiation. Certain antibiotics, oral contraceptives, antidepressants, acne medications, and tranquillizers have this effect.

UV intensity
The UV Index indicates the risk of getting a sunburn at a given time and location. Contributing factors include:
The time of day. In most locations, the suns rays are strongest between approximately 10 am and 4 pm daylight saving time.
Cloud cover. UV is partially blocked by clouds; but even on an overcast day, a significant percentage of the suns damaging UV radiation can pass through clouds.
Proximity to reflective surfaces, such as water, sand, concrete, snow, and ice. All of these reflect the suns rays and can cause sunburns.
The season of the year. The position of the sun in late spring and early summer can cause a more-severe sunburn.
Altitude. At a higher altitude it is easier to become burnt, because there is less of the earths atmosphere to block the sunlight. UV exposure increases about 4% for every 1000 ft (305 m) gain in elevation.
Proximity to the equator (latitude). Between the polar and tropical regions, the closer to the equator, the more direct sunlight passes through the atmosphere over the course of a year. For example, the southern United States gets fifty percent more sunlight than the northern United States.
Because of variations in the intensity of UV radiation passing through the atmosphere, the risk of sunburn increases with proximity to the tropic latitudes, located between 23.5° north and south latitude. All else being equal (e.g., cloud cover, ozone layer, terrain, etc.), over the course of a full year, each location within the tropic or polar regions receives approximately the same amount of UV radiation. In the temperate zones between 23.5° and 66.5°, UV radiation varies substantially by latitude and season. The higher the latitude, the lower the intensity of the UV rays.  Intensity in the northern hemisphere is greatest during the months of May, June and July—and in the southern hemisphere, November, December and January. On a minute-by-minute basis, the amount of UV radiation is dependent on the angle of the sun. This is easily determined by the height ratio of any object to the size of its shadow (if the height is measured vertical to the earths gravitational field, the projected shadow is ideally measured on a flat, level surface; furthermore, for objects wider than skulls or poles, the height and length are best measured relative to the same occluding edge). The greatest risk is at solar noon, when shadows are at their minimum and the suns radiation passes most directly through the atmosphere. Regardless of ones latitude (assuming no other variables), equal shadow lengths mean equal amounts of UV radiation.
The skin and eyes are most sensitive to damage by UV at 265–275 nm wavelength, which is in the lower UVC band that is almost never encountered except from artificial sources like welding arcs. Most sunburn is caused by longer wavelengths, simply because those are more prevalent in sunlight at ground level.

Ozone depletion
In recent decades, the incidence and severity of sunburn have increased worldwide, partly because of chemical damage to the atmospheres ozone layer. Between the 1970s and the 2000s, average stratospheric ozone decreased by approximately 4%, contributing an approximate 4% increase to the average UV intensity at the earths surface. Ozone depletion and the seasonal "ozone hole" have led to much larger changes in some locations, especially in the southern hemisphere.

Tanning
Suntans, which naturally develop in some individuals as a protective mechanism against the sun, are viewed by most in the Western world as desirable. This has led to an overall increase in exposure to UV radiation from both the natural sun and tanning lamps. Suntans can provide a modest sun protection factor (SPF) of 3, meaning that tanned skin would tolerate up to three times the UV exposure as pale skin.Sunburns associated with indoor tanning can be severe.The World Health Organization, American Academy of Dermatology, and the Skin Cancer Foundation recommend avoiding artificial UV sources such as tanning beds, and do not recommend suntans as a form of sun protection.

Diagnosis
Differential diagnosis
The differential diagnosis of sunburn includes other skin pathology induced by UV radiation including photoallergic reactions, phototoxic reactions to topical or systemic medications, and other dermatologic disorders that are aggravated by exposure to sunlight. Considerations for diagnosis include duration and intensity of UV exposure, use of topical or systemic medications, history of dermatologic disease, and nutritional status.

Phototoxic reactions: Non-immunological response to sunlight interacting with certain drugs and chemicals in the skin which resembles an exaggerated sunburn.  Common drugs that may cause a phototoxic reaction include amiodarone, dacarbazine, fluoroquinolones, 5-fluorouracil, furosemide, nalidixic acid, phenothiazines, psoralens, retinoids, sulfonamides, sulfonylureas, tetracyclines, thiazides, and vinblastine.
Photoallergic reactions: Uncommon immunological response to sunlight interacting with certain drugs and chemicals in the skin. When in excited state by UVR, these drugs and chemicals form free radicals that react to form functional antigens and induce a Type IV hypersensitivity reaction.  These drugs include 6-methylcoumarin, aminobenzoic acid and esters, chlorpromazine, promethazine, diclofenac, sulfonamides, and sulfonylureas. Unlike phototoxic reactions which resemble exaggerated sunburns, photoallergic reactions can cause intense itching and can lead to thickening of the skin.
Phytophotodermatitis: UV radiation induces inflammation of the skin after contact with certain plants (including limes, celery, and meadow grass). Causes pain, redness, and blistering of the skin in the distribution of plant exposure.
Polymorphic light eruption: Recurrent abnormal reaction to UVR. It can present in various ways including pink-to-red bumps, blisters, plaques and urticaria.
Solar urticaria: UVR-induced wheals that occurs within minutes of exposure and fades within hours.
Other skin diseases exacerbated by sunlight: Several dermatologic conditions can increase in severity with exposure to UVR. These include systemic lupus erythematosus (SLE), dermatomyositis, acne, atopic dermatitis, and rosacea.Additionally, since sunburn is a type of radiation burn, it can initially hide a severe exposure to radioactivity resulting in acute radiation syndrome or other radiation-induced illnesses, especially if the exposure occurred under sunny conditions. For instance, the difference between the erythema caused by sunburn and other radiation burns is not immediately obvious. Symptoms common to heat illness and the prodromic stage of acute radiation syndrome like nausea, vomiting, fever, weakness/fatigue, dizziness or seizure can add to further diagnostic confusion.

Prevention
The most effective way to prevent sunburn is to reduce the amount of UV radiation reaching the skin. The World Health Organization, American Academy of Dermatology, and Skin Cancer Foundation recommend the following measures to prevent excessive UV exposure and skin cancer:
Limiting sun exposure between the hours of 10 am and 4 pm, when UV rays are the strongest
Seeking shade when UV rays are most intense
Wearing sun-protective clothing including a wide brim hat, sunglasses, and tightly-woven, loose-fitting clothing
Using sunscreen
Avoiding tanning beds and artificial UV exposure

UV intensity
The strength of sunlight is published in many locations as a UV Index. Sunlight is generally strongest when the sun is close to the highest point in the sky. Due to time zones and daylight saving time, this is not necessarily at 12 noon, but often one to two hours later. Seeking shade including using umbrellas and canopies can reduce the amount of UV exposure, but does not block all UV rays. The WHO recommends following the shadow rule: "Watch your shadow – Short shadow, seek shade!"

Grapes
A 2022 study found that eating 60 grapes a day can stop you getting sunburn. Scientists found people who ate three-quarters of a punnet every day for two weeks were better protected against damage to the skin from ultraviolet light. Polyphenols found naturally in the fruits are thought to be responsible for the resistance.

Sunscreen
Commercial preparations are available that block UV light, known as sunscreens or sunblocks. They have a sun protection factor (SPF) rating, based on the sunblocks ability to suppress sunburn: The higher the SPF rating, the lower the amount of direct DNA damage. The stated protection factors are correct only if 2 mg of sunscreen is applied per square cm of exposed skin. This translates into about 28 mL (1 oz) to cover the whole body of an adult male, which is much more than many people use in practice. Sunscreens function as chemicals such as oxybenzone and dioxybenzone (organic sunscreens) or opaque materials such as zinc oxide or titanium oxide (inorganic sunscreens) that both mainly absorb UV radiation. Chemical and mineral sunscreens vary in the wavelengths of UV radiation blocked. Broad-spectrum sunscreens contain filters that protect against UVA radiation as well as UVB. Although UVA radiation does not primarily cause sunburn, it does contribute to skin aging and an increased risk of skin cancer.
Sunscreen is effective and thus recommended for preventing melanoma and squamous cell carcinoma. There is little evidence that it is effective in preventing basal cell carcinoma. Typical use of sunscreen does not usually result in vitamin D deficiency, but extensive usage may.

Recommendations
Research has shown that the best sunscreen protection is achieved by application 15 to 30 minutes before exposure, followed by one reapplication 15 to 30 minutes after exposure begins. Further reapplication is necessary only after activities such as swimming, sweating, and rubbing. This varies based on the indications and protection shown on the label—from as little as 80 minutes in water to a few hours, depending on the product selected. The American Academy of Dermatology recommends the following criteria in selecting a sunscreen:
Broad spectrum: protects against both UVA and UVB rays
SPF 30 or higher
Water resistant: sunscreens are classified as water resistant based on time, either 40 minutes, 80 minutes, or not water resistant

Eyes
The eyes are also sensitive to sun exposure at about the same UV wavelengths as skin; snow blindness is essentially sunburn of the cornea. Wrap-around sunglasses or the use by spectacle-wearers of glasses that block UV light reduce the harmful radiation. UV light has been implicated in the development of age-related macular degeneration,  pterygium and cataract.  Concentrated clusters of melanin, commonly known as freckles, are often found within the iris.
The tender skin of the eyelids can also become sunburned, and can be especially irritating.

Lips
The lips can become chapped (cheilitis) by sun exposure. Sunscreen on the lips does not have a pleasant taste and might be removed by saliva. Some lip balms (ChapSticks) have SPF ratings and contain sunscreens.

Feet
The skin of the feet is often tender and protected, so sudden prolonged exposure to UV radiation can be particularly painful and damaging to the top of the foot. Protective measures include sunscreen, socks, and swimwear or swimgear that covers the foot.

Diet
Dietary factors influence susceptibility to sunburn, recovery from sunburn, and risk of secondary complications from sunburn.  Several dietary antioxidants, including essential vitamins, have been shown to have some effectiveness for protecting against sunburn and skin damage associated with ultraviolet radiation, in both human and animal studies.  Supplementation with Vitamin C and Vitamin E was shown in one study to reduce the amount of sunburn after a controlled amount of UV exposure.
A review of scientific literature through 2007 found that beta carotene (Vitamin A) supplementation had a protective effect against sunburn, but that the effects were only evident in the long-term, with studies of supplementation for periods less than 10 weeks in duration failing to show any effects. There is also evidence that common foods may have some protective ability against sunburn if taken for a period before the exposure.

Protecting children
Babies and children are particularly susceptible to UV damage which increases their risk of both melanoma and non-melanoma skin cancers later in life. Children should not sunburn at any age and protective measures can ensure their future risk of skin cancer is reduced.
Infants 0–6 months: Children under 6mo generally have skin too sensitive for sunscreen and protective measures should focus on avoiding excessive UV exposure by using window mesh covers, wide brim hats, loose clothing that covers skin, and reducing UV exposure between the hours of 10am and 4pm.
Infants 6–12 months: Sunscreen can safely be used on infants this age. It is recommended to apply a broad-spectrum, water-resistant SPF 30+ sunscreen to exposed areas as well as avoid excessive UV exposure by using wide-brim hats and protective clothing.
Toddlers and Preschool-aged children: Apply a broad-spectrum, water-resistant SPF 30+ sunscreen to exposed areas, use wide-brim hats and sunglasses, avoid peak UV intensity hours of 10am-4pm and seek shade. Sun protective clothing with a SPF rating can also provide additional protection.

Artificial UV exposure
The WHO recommends that artificial UV exposure including tanning beds should be avoided as no safe dose has been established. When one is exposed to any artificial source of occupational UV, special protective clothing (for example, welding helmets/shields) should be worn </s>