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Tuesday, November 15, 2022

Amateur chemistry

From Wikipedia, the free encyclopedia

Amateur chemistry or home chemistry is the pursuit of chemistry as a private hobby. Amateur chemistry is usually done with whatever chemicals are available at disposal at the privacy of one's home. It should not be confused with clandestine chemistry, which involves the illicit production of controlled drugs. Notable amateur chemists include Oliver Sacks and Sir Edward Elgar.

History

Origins

Amateur chemistry shares its early history with that of chemistry in general. Pioneers of modern chemistry such as Robert Boyle and Antoine Lavoisier were gentlemen scientists who pursued their research independently from their source of income. Only with the coming of the industrial era, and the rise of universities as research institutions, did any significant distinction between amateurs and professionals emerge. Nevertheless, amateur progress lasted well into the 19th century. For example, in 1886, Charles Martin Hall co-invented the Hall-Héroult process for extracting aluminium from its oxide whilst working in a woodshed behind his family home. The history of amateur chemistry ties in well with that of chemistry in general. The history of chemistry represents a time span from ancient history to the present. By 1000 BC, civilizations used technologies that would eventually form the basis to the various branches of chemistry. These processes include extracting metals from ores, making pottery and glazes, fermenting beer and wine, extracting chemicals from plants for medicine and perfume, rendering fat into soap, making glass, and making alloys like bronze.

Chemistry as a hobby

Throughout much of the 20th century, amateur chemistry was an unexceptional hobby, with high-quality chemistry sets readily available, and laboratory suppliers freely selling to hobbyists. For example, Linus Pauling had no difficulty in procuring potassium cyanide at the age of eleven. Many academics, from researchers to university professors, and even Nobel prize laureates, have acknowledged that at least part of their interest in sciences could be traced back to chemistry sets and home labs when they were young. These include Dorothy Hodgkin, Robert F. Curl, George A. Olah, Rudolph A. Marcus, Louis J. Ignarro, Richard Schrock, Roger Y. Tsien, William D. Phillips, Steven Weinberg Peter Licence, etc. However, due to increasing concerns about terrorism, drugs, and safety, suppliers became increasingly reluctant to sell to amateurs, and chemistry sets were steadily toned down. This trend has gradually continued, leaving hobbyists in many parts of the world without access to most reagents.

Home-based chemistry labs were explored as a way to remotely teach students during the COVID-19 pandemic, especially since many local and state-level governments across the world imposed lockdowns or other types of restrictions to contain the spread of the virus.

Notable amateur chemists

Restrictions

Whilst the hobby is probably legal in most jurisdictions, the relationship between amateur chemists and law enforcement agencies is often fraught. Hobbyists are often affected by laws intended to fight drugs and terrorism. Furthermore, many chemical supply houses refuse to sell to amateurs, with such policies sometimes being stated openly. Even though the regulations discussed in this section may affect professional and academic laboratories (e.g. business and universities), private individuals, or both, amateur chemists are still affected by those addressed to the former ones, since they usually contain clues that explain the behaviour of these chemical suppliers. Medium-sized suppliers and multinationals have whole departments, sometimes named Compliance or Regulatory affairs, tasked with periodically checking and implementing new regulations regarding chemicals on their companies.

Canada

In Canada, a wide range of basic laboratory reagents such as nitric acid and hydrogen peroxide are restricted as "explosives precursors". Two of the main legal texts in Canada restricting the sale of certain chemicals are the Explosives Act, and the Explosives Regulations, 2013 (SOR/2013-211). Part 20 of the latter restricts the sale, acquisition, and storage of ten explosives precursors, namely, ammonium nitrate in solid form and with a nitrogen concentration >=28%, hydrogen peroxide >=30% conc., nitromethane, potassium chlorate, potassium perchlorate, solid sodium chlorate, nitric acid >= 75% conc., potassium nitrate, mixtures of potassium nitrate and sodium nitrate, and solid sodium nitrate. In 2021, the Canada Gazette published an amendment proposal to the Explosives Regulations, 2013, which suggested measures including the classification of precursors into three tiers, and the addition of calcium ammonium nitrate, hexamethylenetetramine, aluminium powder, and acetone to the precursors list.

In late 2008, Lewis Casey, an 18-year-old college student from Saskatchewan, was arrested for owning a small chemistry lab in his family's garage. After the raid, the police initially claimed that it was a meth lab, but withdrawn the drug charge a few days later. The Crown withdrew criminal charges against him on Oct. 13.

European Union

In the EU, regulations regarding reagent restrictions can be classified in several different sets: dual-use goods, substances in the Schedules 1, 2 and 3 of the CWC, substances on the Common Military List, hazardous chemicals (as defined by Prior Informed Consent Regulation), chemicals subject to the anti-torture regulation, chemicals that cannot be exported to given countries due to sanctions and embargoes, explosives precursors and drug precursors. Those regulations may contain provisions affecting one or more types of "agents" (e.g. manufacturers, resellers, distributors, etc.), end users, or both. Reagent manufacturers typically require customers to sign an end user declaration before accepting and processing the sale of a chemical listed on these schedules.

One of the cornerstones of EU legislation on hazardous chemicals is the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH), which is defined in Regulation (EC) No. 1907/2006

On the topic of explosives precursors, Regulation (EU) No. 98/2013 introduced rules to harmonize the sale, possession and use of several substances across all EU countries. It requires that each member state must define a National Contact Point to which economic operators must report suspicious transactions, thefts and disappearances of significant quantities involving scheduled substances.

On 1 February 2021, Regulation (EU) 2019/1148 amended REACH and repealed Regulation (EC) No. 98/2013. The newer one is designed to ban the sale and possession of explosives precursors by members of the general public above given concentrations. Any individual can own these chemicals provided their concentration is below or equal to a given limit (e.g. for sulfuric acid up to 15% conc. in weight). Said upper limit allowed can be increased (e.g. for sulfuric acid, up to 40% conc.) by requesting a license to the national authority. Professional users are not affected by these thresholds. However, professional users and members of the general public must also report significant disappearances and thefts of restricted explosives precursors within 24 hours of detection to the national contact point.

List of scheduled explosives precursors on the EU
Category Substance Upper limit w/o license Upper limit w/ license
Restricted Nitric acid 3% w/w 10% w/w
Hydrogen peroxide 12% w/w 35% w/w
Sulphuric acid 15% w/w 40% w/w
Nitromethane 16% w/w 100% w/w
Ammonium nitrate 16% w/w of nitrogen in relation to ammonium nitrate (4) No licensing permitted
Potassium chlorate 40% w/w No licensing permitted
Potassium perchlorate 40% w/w No licensing permitted
Sodium chlorate 40% w/w No licensing permitted
Sodium perchlorate 40% w/w No licensing permitted
Reportable Hexamine Does not apply Does not apply
Acetone
Potassium nitrate
Sodium nitrate
Calcium nitrate
Calcium ammonium nitrate
Magnesium, powders
Magnesium nitrate hexahydrate
Aluminium, powders

Drug precursors: Regulation (EC) No 273/2004 Regulation (EC) No 111/2005 Commission Delegated Regulation (EU) 2015/1011 of 24 April 2015

Regulation (EC) No 273/2004 was amended by Regulation (EU) No 1258/2013, which introduced the term "user", and split reagents on category 2 into categories 2A and 2B

List of scheduled drug precursors on the EU
Category Substance Threshold
Category 1
Subcategory 2A 0,1 kg
100 l
Subcategory 2B 1 kg
1 kg
0,5 kg
100 kg
Category 3

Regarding waste management, it might be considered acceptable to dispose of some acidic or basic solutions by neutralizing and flushing them down the drain, provided that they don't contain other hazardous substances and the reaction products aren't hazardous either. However, other types of wastes must be disposed by handling them to an authorised waste management entity in an appropriate container, usually HDPE jerry cans. Such entities require each container received to be appropriately labeled with several details, which may include GHS hazard pictograms, the EWC (European Waste Catalogue) code, also called LoW (List of Waste) code, that identifies the type of waste. These codes were defined by the Commission Decision 2000/532/EC (CELEX:02000D0532-20150601), later amended by Commission Decision 2014/955/EU (CELEX:32014D0955), which also . Laboratories typically classify their wastes into those containing halogenated solvents (such as chloroform and dichloromethane, EWC 14 06 02), non-halogenated solvents (like hexane and toluene, EWC 14 06 03 or 20 01 13), non-halogenated mineral oils (e.g. from rotary vane vacuum pumps, EWC 13 02 05, or 13 02 08)

Several chemicals, especially solvents, are subject to taxes for certain uses. One such example is ethanol, due to its potential use in alcoholic drinks. Both Council Directive 92/81/EEC, and Council Directive 2003/96/EC, which repealed the former, impose taxes on several hydrocarbons that can be used as fuels. These hydrocarbons include hexane, heptane, isooctane (CN 2901 10 for most saturated acyclic hydrocarbons), petroleum ether (CN 2710 12 25), cyclohexane (CN 2902 11), benzene (CN 2902 20), toluene (CN 2902 30) and xylenes (o-Xylene: CN 2902 41, m-Xylene: CN 2902 42, p-Xylene: CN 2902 43, and a mix of these isomers: CN 2902 44), among others.

Czech Republic

In late 2019, a 42-year-old man was found dead on his apartment in Židenice, Brno. While searching the house, the police found a large amount of chemicals, including half a kilogram of picric acid. As a precautionary measure, the police closed the street and evacuated 80 residents in total while his reagents were being classified and removed. Some tabloids published early speculations hinting at illegal drug production and stating that he might have died of an overdose. However, a friend of his explained he might have been suffering mental health issues, and preliminary results of the autopsy suggested suicide was the most likely cause of his death.

Germany

Regulations regarding hazardous chemicals in this country include the Explosives Act (Sprengstoffgesetz), and the Hazardous Substances Ordinance (Gefahrstoffverordnung, abbreviated as GefStoffV), which is part of the Chemicals Act (Chemikaliengesetz, abbreviated as ChemG).

German amateur chemists have been raided by the police, despite not being in the possession of illegal chemicals.

Spain

According to the Resolution of 20 November 2013 of the Spanish State Secretariat for Security, the National Contact Point for this country is the Intelligence Center for Counter-Terrorism and Organized Crime (CITCO). In addition to EU regulations, explosives precursors are addressed in Law 8/2017, of 8 November, on explosives precursors. On the other hand, drug precursors are addressed by the Law 4/2009, of 15 June, on drug precursors control, and the Royal Decree 129/2017, of 24 February, by which the Drug Precursors Control Regulation is approved. Additionally, the storage of chemicals, including reagents, flammable solvents, and gas cylinders, is regulated by Royal Decree 656/2017, of 23 June.

In general, the topic of hazardous waste management is discussed on Law 22/2011, of 28 July, on wastes and contaminated soils, which was repealed and replaced by Law 7/2022, of 8 April. The transport of wastes is regulated as well, by the Royal Decree 553/2020, of 2 June. Business that meet the definition of 'waste producers' or 'waste management facilities' need to obtain an Environmental Identification Number (Número de identificación medioambiental, NIMA). Said numbers are issued by the government of the autonomous community where the business is located.

Several EU regulations regarding special taxes have been transposed to Spanish regulations in Law 38/1992, of 28 December, of Special Taxes. It was later extended by the Royal Decree 1165/1995, of 7 July, by which the Regulation on Special Taxes is approved. According to article 79 of the latter, even though ethanol is subject to a special tax due to its potential use in spirits, its use in scientific research can be exempted. This exemption requires obtaining an Activity and Establishment Code (Código de Actividad y del Establecimiento, CAE), which allows to request a refund from the Tax Agency (Agencia Tributaria) by submitting a filled form model 572. Said code is composed of 13 characters, the first two being "ES", then three zeros, two characters identifying the local management office, two more characters for the activity, a sequential inscription number made up of three characters, and finally a control letter. A refund can also be requested for the special tax on hydrocarbons as long as they aren't used as fuels, according to article 109 the same Royal Decree (1165/1995, of 7 July).

Norway

In September 2018, a 29-year-old physician and amateur chemist and his girlfriend were arrested at their home on in Nord-Jæren, two days after inquiring a local pharmacy about the availability of 35% hydrogen peroxide. He explained that he had an accident while camping, suffering a wound that he stitched himself. Being a physician and seeing the effect of flame-sterilizing on his surgical instruments, he was looking for a milder alternative that could also be used to disinfect wounds. However, his enquiry triggered the submission of an alert to KRIPOS, which sent a few police officers to the house. These officers would, in turn, find the chemicals from his lab, and arrest him.

One law in this country that regulates flammable chemicals, gas cylinders, and explosive substances is the Fire and Explosion Protection Act (Brann- og eksplosjonsvernloven).

United Kingdom

In the UK it is a criminal offence for members of the general public to purchase, and for business to sell, certain types of poisons or explosives precursors to those of the former group without a valid EPP license. Purchasing substances on this list is restricted since 26 May 2015, and its possession is also restricted since 3 March 2016. Since July 1st 2018, the acquisition of sulphuric acid in concentrations above 15% in weight by members of the general public also requires an EPP licence, which has impacted lead-acid battery sellers.

Some regulations regarding restricted chemicals in this country include the Poison Act 1972, which was amended by the Deregulation Act 2015, and the Control of Poisons and Explosives Precursors Regulations 2015.

United States

In the United States, the Drug Enforcement Administration maintains lists regarding the classification of illicit drugs, which contain chemicals that are used to manufacture the controlled substances/illicit drugs. The lists are designated within The Controlled Substances Act, 21 U.S.C. § 802, paragraphs 34 (list I) and 35 (list II). Additionally, some regions have stringent regulations concerning the ownership of chemicals and equipment. For example, Texas once required the registration of even the most basic laboratory glassware. However, this requirement was repealed on June 6, 2019.

United Nuclear, an amateur science supplier based in New Mexico was raided in June 2003 at the behest of the U.S. Consumer Product Safety Commission, and subsequently fined $7,500 for "Selling Illegal Fireworks Components".

In 2008, the home laboratory of Victor Deeb, a retired chemist, was raided and dismantled

Almost a year later, Jack Robison, then a 19-year-old chemistry student at the Holyoke Community College, received a visit from members of the Massachusetts State Police, the Bureau of Alcohol, Tobacco, Firearms and Explosives, and the FBI. They asked him questions regarding several videos on small-scale experiments he had posted two years earlier on YouTube involving energetic materials, including PETN, potassium nitrate, and RDX, and wanted to check his mother's house basement. He was initially charged with three counts of malicious explosion and one count of possessing explosives with the intent to harm people or property, facing up to 60 years in prison, but was found innocent after trial.

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Profession

From Wikipedia, the free encyclopedia
 
A 19th century etching of a farmer consulting with his doctor, vicar and lawyer
 

A profession is a field of work that has been successfully professionalized. It can be defined as a disciplined group of individuals, professionals, who adhere to ethical standards and who hold themselves out as, and are accepted by the public as possessing special knowledge and skills in a widely recognised body of learning derived from research, education and training at a high level, and who are prepared to apply this knowledge and exercise these skills in the interest of others.

Professional occupations are founded upon specialized educational training, the purpose of which is to supply disinterested objective counsel and service to others, for a direct and definite compensation, wholly apart from expectation of other business gain. Medieval and early modern tradition recognized only three professions: divinity, medicine, and law, which were called the learned professions. A profession is not a trade and not an industry.

Some professions change slightly in status and power, but their prestige generally remains stable over time, even if the profession begins to have more required study and formal education. Disciplines formalized more recently, such as architecture, now have equally long periods of study associated with them.

Although professions may enjoy relatively high status and public prestige, not all professionals earn high salaries, and even within specific professions there exist significant differences in salary. In law, for example, a corporate defense lawyer working on an hourly basis may earn several times what a prosecutor or public defender earns.

Etymology

The term "profession" is a truncation of the term "liberal profession", which is, in turn, an Anglicization of the French term profession libérale. Originally borrowed by English users in the 19th century, it has been re-borrowed by international users from the late 20th, though the (upper-middle) class overtones of the term do not seem to survive re-translation: "liberal professions" are, according to the European Union's Directive on Recognition of Professional Qualifications (2005/36/EC), "those practised on the basis of relevant professional qualifications in a personal, responsible and professionally independent capacity by those providing intellectual and conceptual services in the interest of the client and the public". Under the European Commission, liberal professions are professions that require specialized training and that are regulated by "national governments or professional bodies".

Formation

A profession arises through the process of professionalization when any trade or occupation transforms itself:

"... [through] the development of formal qualifications based upon education, apprenticeship, and examinations, the emergence of regulatory bodies with powers to admit and discipline members, and some degree of monopoly rights.

Major milestones which may mark an occupation being identified as a profession include:

  1. an occupation becomes a full-time occupation
  2. the establishment of a training school
  3. the establishment of a university school
  4. the establishment of a local association
  5. the establishment of a national association of professional ethics
  6. the establishment of state licensing laws

Applying these milestones to the historical sequence of development in the United States shows surveying achieving professional status first (note that George Washington, Thomas Jefferson, and Abraham Lincoln all worked as land surveyors before entering politics), followed by medicine, actuarial science, law, dentistry, civil engineering, logistics, architecture and accounting.

With the rise of technology and occupational specialization in the 19th century, other bodies began to claim professional status: mechanical engineering, pharmacy, veterinary medicine, psychology, nursing, teaching, librarianship, optometry and social work, each of which could claim, using these milestones, to have become professions by 1900.

Regulation

Main article: Professional body

Originally, any regulation of the professions was self-regulation through bodies such as the College of Physicians or the Inns of Court. With the growing role of government, statutory bodies have increasingly taken on this role, their members being appointed either by the profession or (increasingly) by the government. Proposals for the introduction or enhancement of statutory regulation may be welcomed by a profession as protecting clients and enhancing its quality and reputation, or as restricting access to the profession and hence enabling higher fees to be charged. It may be resisted as limiting the members' freedom to innovate or to practice as in their professional judgement they consider best.

An example was in 2008, when the British government proposed wide statutory regulation of psychologists. The inspiration for the change was a number of problems in the psychotherapy field, but there are various kinds of psychologists including many who have no clinical role, and where the case for regulation was not so clear. Work psychology brought especial disagreement, with the British Psychological Society favoring statutory regulation of "occupational psychologists" and the Association of Business Psychologists resisting the statutory regulation of "business psychologists" – descriptions of professional activity which it may not be easy to distinguish.

Besides regulating access to a profession, professional bodies may set examinations of competence and enforce adherence to an ethical code. There may be several such bodies for one profession in a single country, an example being the accountancy bodies of the United Kingdom (ACCA, CAI, CIMA, CIPFA, ICAEW and ICAS), all of which have been given a Royal Charter, although their members are not necessarily considered to hold equivalent qualifications, and which operate alongside further bodies (AAPA, IFA, CPAA). Another example of a regulatory body that governs a profession is the Hong Kong Professional Teachers Union, which governs the conduct, rights, obligations, and duties of salaried teachers working in educational institutions in Hong Kong.

The engineering profession is highly regulated in some countries (Canada and USA) with a strict licensing system for Professional Engineer that controls the practice but not in others (UK) where titles and qualifications are regulated Chartered Engineer but the practice is not regulated.

Typically, individuals are required by law to be qualified by a local professional body before they are permitted to practice in that profession. However, in some countries, individuals may not be required by law to be qualified by such a professional body in order to practice, as is the case for accountancy in the United Kingdom (except for auditing and insolvency work which legally require qualification by a professional body). In such cases, qualification by the professional bodies is effectively still considered a prerequisite to practice as most employers and clients stipulate that the individual hold such qualifications before hiring their services. For example, in order to become a fully qualified teaching professional in Hong Kong working in a state or government-funded school, one needs to have successfully completed a Postgraduate Diploma in Education ("PGDE") or a bachelor's degree in Education ("BEd") at an approved tertiary educational institution or university. This requirement is set out by the Educational Department Bureau of Hong Kong, which is the governmental department that governs the Hong Kong education sector.

Autonomy

Professions tend to be autonomous, which means they have a high degree of control of their own affairs: "professionals are autonomous insofar as they can make independent judgments about their work". This usually means "the freedom to exercise their professional judgement."

However, it also has other meanings. "Professional autonomy is often described as a claim of professionals that has to serve primarily their own interests...this professional autonomy can only be maintained if members of the profession subject their activities and decisions to a critical evaluation by other members of the profession." The concept of autonomy can therefore be seen to embrace not only judgement, but also self-interest and a continuous process of critical evaluation of ethics and procedures from within the profession itself.

One major implication of professional autonomy is the traditional ban on corporate practice of the professions, especially accounting, architecture, medicine, and law. This means that in many jurisdictions, these professionals cannot do business through regular for-profit corporations and raise capital rapidly through initial public offerings or flotations. Instead, if they wish to practice collectively they must form special business entities such as partnerships or professional corporations, which feature (1) reduced protection against liability for professional negligence and (2) severe limitations or outright prohibitions on ownership by non-professionals. The obvious implication of this is that all equity owners of the professional business entity must be professionals themselves. This avoids the possibility of a non-professional owner of the firm telling a professional how to do his or her job and thereby protects professional autonomy. The idea is that the only non-professional person who should be telling the professional what to do is the client; in other words, professional autonomy preserves the integrity of the two-party professional-client relationship. Above this client-professional relationship the profession requires the professional to use their autonomy to follow the rules of ethics that the profession requires. But because professional business entities are effectively locked out of the stock market, they tend to grow relatively slowly compared to public corporations.

Status, prestige, and power

Main article: Occupational prestige

Professions tend to have a high social status, regarded by society as highly important. This high esteem arises primarily from the higher social function of their work. The typical profession involves technical, specialized, and highly skilled work. This skill and experience is often referred to as "professional expertise." In the modern era, training for a profession involves obtaining degrees and certifications. Often, entry to the profession is barred without licensure. Learning new skills that are required as a profession evolves is called continuing education. Standards are set by states and associations. Leading professionals tend to police and protect their area of expertise and monitor the conduct of their fellow professionals through associations, national or otherwise. Professionals often exercise a dominating influence over related trades, setting guidelines and standards. Socially powerful professionals consolidate their power in organizations for specific goals. Working together, they can reduce bureaucratic entanglements and increase a profession's adaptability to the changing conditions of the world.

Sociology

Émile Durkheim argued that professions created a stable society by providing structure separate from the state and the military that was less inclined to create authoritarianism or anomie and could create altruism and encourage social responsibility and altruism. This functionalist perspective was extended by Parsons who considered how the function of a profession could change in responses to changes in society.

Esther Lucile Brown, an anthropologist, studied various professions starting the 1930s while working with Ralph Hurlin at the Russell Sage Foundation. She published Social Work as a Profession in 1935, and following this publications studying the work of engineers, nurses, medical physicians and lawyers. In 1944, the Department of Studies in the Professions was created at the Russell Sage Foundation with Brown as its head.

Theories based on conflict theories following Marx and Weber consider how professions can act in the interest of their own group to secure social and financial benefits were espoused by Johnson (Professions and Powers, 1972) and Larson (The Rise of Professionalism, 1977). One way that a profession can derive financial benefits is limiting the supply of services.

Theories based on discourse, following Mead and applying ideas of Sartre and Heidegger look at how the individual's understanding of reality influence the role of professions. These viewpoints were espoused by Berger and Luckmann (The Social Construction of Reality, 1966).

System of professions

Andrew Abbott constructed a sociological model of professions in his book The System of Professions. Abbott views professions as having jurisdiction over the right to carry out tasks with different possession vying for control of jurisdiction over tasks.

A profession often possesses an expert knowledge system which is distinct from the profession itself. This abstract system is often not of direct practical use but is rather optimized for logical consistency and rationality, and to some degree acts to increase the status of the entire profession. One profession may seek control of another profession's jurisdiction by challenging it at this academic level. Abbott argues that in the 1920s the psychiatric profession tried to challenge the legal profession for control over society's response to criminal behavior. Abbott argues the formalization of a profession often serves to make a jurisdiction easier or harder to protect from other jurisdictions: general principles making it harder for other professions to gain jurisdiction over one area, clear boundaries preventing encroachment, fuzzy boundaries making it easier for one profession to take jurisdiction over other tasks.

Professions may expand their jurisdiction by other means. Lay education on the part of professions as in part an attempt to expand jurisdiction by imposing a particular understanding on the world (one in which the profession has expertise). He terms this sort of jurisdiction public jurisdiction. Legal jurisdiction is a monopoly created by the state legislation, as applies to law in many nations.

Characteristics

There is considerable agreement about defining the characteristic features of a profession. They have a "professional association, cognitive base, institutionalized training, licensing, work autonomy, colleague control... (and) code of ethics", to which Larson then also adds, "high standards of professional and intellectual excellence," (Larson, p. 221) that "professions are occupations with special power and prestige", (Larson, p.x) and that they comprise "an exclusive elite group," (Larson, p. 20) in all societies. Members of a profession have also been defined as "workers whose qualities of detachment, autonomy, and group allegiance are more extensive than those found among other groups...their attributes include a high degree of systematic knowledge; strong community orientation and loyalty; self-regulation; and a system of rewards defined and administered by the community of workers."

A profession has been further defined as: "a special type of occupation...(possessing) corporate solidarity...prolonged specialized training in a body of abstract knowledge, and a collectivity or service orientation...a vocational sub-culture which comprises implicit codes of behavior, generates an esprit de corps among members of the same profession, and ensures them certain occupational advantages...(also) bureaucratic structures and monopolistic privileges to perform certain types of work...professional literature, legislation, etc."

A critical characteristic of a profession is the need to cultivate and exercise professional discretion - that is, the ability to make case by case judgements that cannot be determined by an absolute rule or instruction.

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Work (human activity)

From Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/Work_(human_activity)

A blacksmith working
 
A World War II aircraft worker, Vega Aircraft Corporation, Burbank, California, 1942
 
Cleaning the floor in a Virginia community center
 
Serving staff is an example of a common profession.
 
Piano tuner is an example of an unusual profession.

Work or labor (or labour in British English) is intentional activity people perform to support the needs and wants of themselves, others, or a wider community. In the context of economics, work can be viewed as the human activity that contributes (along with other factors of production) towards the goods and services within an economy.

Work is fundamental to all societies, but can vary widely within and between them, from gathering in natural resources by hand, to operating complex technologies that substitute for physical or even mental effort by many human beings. All but the simplest tasks also require specific skills, equipment or tools, and other resources (such as material for manufacturing goods). Cultures and individuals across history have expressed a wide range of attitudes towards work. Outside of any specific process or industry, humanity has developed a variety of institutions for situating work in society.

Besides objective differences, one culture may organize or attach social status to work roles differently from another. Throughout history, work has been intimately connected with other aspects of society and politics, such as power, class, tradition, rights, and privileges. Accordingly, the division of labor is a prominent topic across the social sciences, as both an abstract concept and a characteristic of individual cultures.

Some people have also engaged in critique of work and expressed a wish to abolish it. For example Paul Lafargue in his book The Right to Be Lazy.

Description

Three women wearing heavy clothing and long bonnets, carrying long hammers, standing around a pile of rocks
Bal maidens with traditional tools and protective clothing spalling ore, 1858

Work can take many different forms, as various as the environments, tools, skills, goals, and institutions around a worker.

Because sustained effort is a necessary part of many human activities, what qualifies as work is often a matter of context. Specialization is one common feature that distinguishes work from other activities. For example, a sport is a job for a professional athlete who earns their livelihood from it, but a hobby to someone playing for fun in their community. An element of advance planning or expectation is also common, such as when a paramedic provides medical care while on-duty and fully equipped, rather than performing first aid off-duty as a bystander in an emergency. Self-care and basic habits like personal grooming are also not typically considered work either.

While a later gift, trade, or payment may retroactively affirm an activity as productive, this can exclude work like volunteering or activity within a family setting, like parenting or housekeeping. In some cases, the distinction between work and other activities is simply a matter of common sense within a community. However, an alternative view is that labeling any activity as work is somewhat subjective, such as Mark Twain expressed in the "whitewashed fence" scene of The Adventures of Tom Sawyer.

Women carpenters working at the Tarrant Hut Workshops, 3 miles from Calais, 26 June 1918
 
A thatcher at work

History

Humans have varied their work habits and attitudes to work over the course of time. Hunter-gatherer societies vary their "work" intensity according to seasonal availability of plants and the periodic migration of prey animals. The development of agriculture led to more sustained work practices, but work still changed with the seasons, with intense sustained effort during harvests (for example) alternating with less focussed periods such as winters. In the early-modern era, Protestantism and proto-capitalism emphasised the moral/personal advantages of hard work.

The periodic re-invention of slavery encouraged more consistent work activity in the working class, and capitalist industrialisation intensified demands on workers to keep up with the pace of machines. Restrictions on the hours of work and the ages of workers followed, with worker demands for time-off increasing, but modern office work retains traces of expectations of sustained, concentrated work, even in affluent societies.

Kinds of work

There are several ways to categorize and compare different kinds of work. In economics, one popular approach is the three-sector model or variations of it. In this view, an economy can be separated into three broad categories:

In complex economies with high specialization, these categories are further subdivided into industries that produce a focused subset of products or services. Some economists also propose additional sectors such as a "knowledge-based" quaternary sector, but this division is neither standardized nor universally accepted.

Another common way of contrasting work roles is ranking them according to a criterion, such as the amount of skill, experience, or seniority associated with a role. The progression from apprentice through journeyman to master craftsman in the skilled trades is one example with a long history and analogues in many cultures.

Societies also commonly rank different work roles by perceived status, but this is more subjective and goes beyond clear progressions within a single industry. Some industries may be seen as more prestigious than others overall, even if they include roles with similar functions. At the same time, a wide swathe of roles across all industries may be afforded more status (e.g. managerial roles) or less (like manual labor) based on characteristics such as a job being low-paid or dirty, dangerous and demeaning.

Other social dynamics, like how labor is compensated, can even exclude meaningful tasks from a society's conception of work. For example, in modern market-economies where wage labor or piece work predominates, unpaid work may be omitted from economic analysis or even cultural ideas of what qualifies as work.

At a political level, different roles can fall under separate institutions where workers have qualitatively different power or rights. In the extreme, the least powerful members of society may be stigmatized (as in untouchability) or even violently forced (via slavery) into performing the least desirable work. Complementary to this, elites may have exclusive access to the most prestigious work, largely symbolic sinecures, or even a "life of leisure".

Workers

Individual workers require sufficient health and resources to succeed in their tasks.

Physiology

Women working at the Dun Emer Press, c. 1903
 
A woman at work in an English biscuit factory

As living beings, humans require a baseline of good health, nutrition, rest, and other physical needs in order to reliably exert themselves. This is particularly true of physical labor that places direct demands on the body, but even largely mental work can cause stress from problems like long hours, excessive demands, or a hostile workplace.

Particularly intense forms of manual labor often lead workers to develop physical strength necessary for their job. However, this activity does not necessarily improve a worker's overall physical fitness like exercise, due to problems like overwork or a small set of repetitive motions. In these physical jobs, maintaining good posture or movements with proper technique is also a crucial skill for avoiding injury. Ironically, white-collar workers who are sedentary throughout the workday may also suffer from long-term health problems due to a lack of physical activity.

Training

Learning the necessary skills for work is often a complex process in its own right, requiring intentional training. In traditional societies, know-how for different tasks can be passed to each new generation through oral tradition and working under adult guidance. For work that is more specialized and technically complex, however, a more formal system of education is usually necessary. A complete curriculum ensures that a worker in training has some exposure to all major aspects of their specialty, in both theory and practice.

Equipment and technology

A potter shapes pottery with his hands while operating a mechanical potter's wheel with his foot, 1902.
 
Men at work on a building site in the City of London

Tool use has been a central aspect of human evolution and is also an essential feature of work. Even in technologically advanced societies, many workers' toolsets still include a number of smaller hand-tools, designed to be held and operated by a single person, often without supplementary power. This is especially true when tasks can be handled by one or a few workers, don't require significant physical power, and are somewhat self-paced, like in many services or handicraft manufacturing.

For other tasks needing large amounts of power, such as in the construction industry, or involving a highly-repetitive set of simple actions, like in mass manufacturing, complex machines can carry out much of the effort. The workers present will focus on more complex tasks, operating controls, or performing maintenance. Over several millennia, invention, scientific discovery, and engineering principles have allowed humans to proceed from creating simple machines that merely redirect or amplify force, through engines for harnessing supplementary power sources, to today's complex, regulated systems that automate many steps within a work process.

In the 20th century, the development of electronics and new mathematical insights led to the creation and widespread adoption of fast, general-purpose computers. Just as mechanization can substitute for the physical labor of many human beings, computers allow for the partial automation of mental work previously carried out by human workers, such as calculations, document transcription, and basic customer service requests. Research and development of related technologies like machine learning and robotics continues into the 21st century.

Beyond tools and machines used to actively perform tasks, workers benefit when other passive elements of their work and environment are designed properly. This includes everything from personal items like workwear and safety gear to features of the workspace itself like furniture, lighting, air quality, and even the underlying architecture.

In society

Organizations

Even if workers are personally ready to perform their jobs, coordination is required for any effort outside of individual subsistence to succeed. At the level of a small team working on a single task, only cooperation and good communication may be necessary. As the complexity of a work process increases though, requiring more planning or more workers focused on specific tasks, a reliable organization becomes more critical.

Economic organizations often reflect social thought common to their time and place, such as ideas about human nature or hierarchy. These unique organizations can also be historically significant, even forming major pillars of an economic system. In European history, for instance, the decline of guilds and rise of joint-stock companies goes hand-in-hand with other changes, like the growth of centralized states and capitalism.

In industrialized economies, labor unions are another significant organization. In isolation, a worker that is easily replaceable in the labor market has little power to demand better wages or conditions. By banding together and interacting with business owners as a corporate entity, the same workers can claim a larger share of the value created by their labor. While a union does require workers to sacrifice some autonomy in relation to their coworkers, it can grant workers more control over the work process itself in addition to material benefits.

Institutions

The need for planning and coordination extends beyond individual organizations to society as a whole too. Every successful work project requires effective resource allocation to provide necessities, materials, and investment (such as equipment and facilities). In smaller, traditional societies, these aspects can be mostly regulated through custom, though as societies grow, more extensive methods become necessary.

These complex institutions, however, still have roots in common human activities. Even the free markets of modern capitalist societies rely fundamentally on trade, while command economies, such as in many communist states during the 20th century, rely on a highly bureaucratic and hierarchical form of redistribution.

Other institutions can affect workers even more directly by delimiting practical day-to-day life or basic legal rights. For example, a caste system may restrict families to a narrow range of jobs, inherited from parent to child. In serfdom, a peasant has more rights than a slave but is attached to a specific piece of land and largely under the power of the landholder, even requiring permission to physically travel outside the land-holding. How institutions play out in individual workers' lives can be complex too; in most societies where wage-labor predominates, workers possess equal rights by law and mobility in theory. Without social support or other resources, however, the necessity of earning a livelihood may force a worker to cede some rights and freedoms in fact.

Values

Societies and subcultures may value work in general, or specific kinds of it, very differently. When social status or virtue is strongly associated with leisure and opposed to tedium, then work itself can become indicative of low social rank and devalued. In the opposite case, a society may hold strongly to a work ethic where work itself is seen as virtuous. For example, German sociologist Max Weber hypothesized that European capitalism originated in a Protestant work ethic, which emerged with the Reformation.

For some, work may hold a spiritual value in addition to any secular notions. Especially in some monastic or mystical strands of several religions, simple manual labor may be held in high regard as a way to maintain the body, cultivate self-discipline and humility, and focus the mind.

Current issues

The contemporary world economy has brought many changes, overturning some previously widespread labor issues. At the same time, some longstanding issues remain relevant, and other new ones have emerged. One issue that continues despite many improvements is slave labor and human trafficking. Though ideas about universal rights and the economic benefits of free labor have significantly diminished the prevalence of outright slavery, it continues in lawless areas, or in attenuated forms on the margins of many economies.

Another difficulty, which has emerged in most societies as a result of urbanization and industrialization, is unemployment. While the shift from a subsistence economy usually increases the overall productivity of society and lifts many out of poverty, it removes a baseline of material security from those who cannot find employment or other support. Governments have tried a range of strategies to mitigate the problem, such as improving the efficiency of job matching, conditionally providing welfare benefits or unemployment insurance, or even directly overriding the labor market through work-relief programs or a job guarantee. Since a job forms a major part of many workers' self-identity, unemployment can have severe psychological and social consequences beyond the financial insecurity it causes.

One more issue, which may not directly interfere with the functioning of an economy but can have significant indirect effects, is when governments fail to account for work occurring out-of-view from the public sphere. This may be important, uncompensated work occurring everyday in private life; or it may be criminal activity that involves clear but furtive economic exchanges. By ignoring or failing to understand these activities, economic policies can have counter-intuitive effects and cause strains on the community and society.

Workplace

A workplace is a location where someone works, for their employer or themselves, a place of employment. Such a place can range from a home office to a large office building or factory. For industrialized societies, the workplace is one of the most important social spaces other than the home, constituting "a central concept for several entities: the worker and [their] family, the employing organization, the customers of the organization, and the society as a whole". The development of new communication technologies has led to the development of the virtual workplace and remote work.
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