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Topic Review
Records Continuum Model
The Records Continuum Model (RCM) was created in the 1990s by Monash University academic Frank Upward with input from colleagues Sue McKemmish and Livia Iacovino as a response to evolving discussions about the challenges of managing digital records and archives in the discipline of Archival Science. The RCM was first published in Upward’s 1996 paper "Structuring the Records Continuum – Part One: Postcustodial principles and properties". Upward describes the RCM within the broad context of a continuum where activities and interactions transform documents into records, evidence and memory that are used for multiple purposes over time. Upward places the RCM within a post-custodial, postmodern and structuration conceptual framework. Australian academics and practitioners continue to explore, develop and extend the RCM and records continuum theory, along with international collaborators, via the Records Continuum Research Group (RCRG) at Monash University.
  • 10.4K
  • 09 Nov 2022
Topic Review
Uniaxial Tensile Test
Tensile testing, also known as tension testing, is a fundamental materials science and engineering test in which a sample is subjected to a controlled tension until failure. Properties that are directly measured via a tensile test are ultimate tensile strength, breaking strength, maximum elongation and reduction in area. From these measurements the following properties can also be determined: Young's modulus, Poisson's ratio, yield strength, and strain-hardening characteristics. Uniaxial tensile testing is the most commonly used for obtaining the mechanical characteristics of isotropic materials. Some materials use biaxial tensile testing. The main difference between these testing machines being how load is applied on the materials.
  • 10.4K
  • 07 Nov 2022
Topic Review
Jews
Jews (Hebrew: יְהוּדִים‎ ISO 259-2 Yehudim, Israeli pronunciation [jehuˈdim]) or Jewish people are members of an ethnoreligious group and a nation originating from the Israelites and Hebrews of historical Israel and Judah. Jewish ethnicity, nationhood, and religion are strongly interrelated, as Judaism is the ethnic religion of the Jewish people, although its observance varies from strict to none. Jews originated as an ethnic and religious group in the Middle East during the second millennium BCE, in the part of the Levant known as the Land of Israel. The Merneptah Stele appears to confirm the existence of a people of Israel somewhere in Canaan as far back as the 13th century BCE (Late Bronze Age). The Israelites, as an outgrowth of the Canaanite population, consolidated their hold with the emergence of the kingdoms of Israel and Judah. Some consider that these Canaanite sedentary Israelites melded with incoming nomadic groups known as 'Hebrews'. Though few sources mention the exilic periods in detail, the experience of diaspora life, from the Babylonian captivity and exile to the Roman occupation and exile, and the historical relations between Jews and their homeland thereafter, became a major feature of Jewish history, identity and memory. In the millennia following, Jewish diaspora communities coalesced into three, major ethnic subdivisions according to where their ancestors settled: Ashkenazim (Central and Eastern Europe), Sephardim (initially in the Iberian Peninsula), and Mizrahim (Middle East and North Africa). Prior to World War II, the worldwide Jewish population reached a peak of 16.7 million, representing around 0.7 percent of the world population at that time. Approximately 6 million Jews were systematically murdered during the Holocaust. Since then the population has slowly risen again, and (As of 2018) was estimated at 14.6–17.8 million by the Berman Jewish DataBank, less than 0.2 percent of the total world population.[note 1] The modern State of Israel is the only country where Jews form a majority of the population. It defines itself as a Jewish and democratic state in the Basic Laws, Human Dignity and Liberty in particular, which is based on the Declaration of Independence. Israel's Law of Return grants the right of citizenship to Jews who have expressed their desire to settle in Israel. Despite their small percentage of the world's population, Jews have significantly influenced and contributed to human progress in many fields, both historically and in modern times, including philosophy, ethics, literature, politics, business, fine arts and architecture, music, theatre and cinema, medicine, and science and technology, as well as religion; Jews authored the Bible, founded Early Christianity and had a profound influence on Islam. Jews have also played a significant role in the development of Western Civilization.
  • 10.4K
  • 21 Nov 2022
Topic Review
Libertarian Marxism
Libertarian Marxism is a broad scope of economic and political philosophies that emphasize the anti-authoritarian and libertarian aspects of Marxism. Early currents of libertarian Marxism such as left communism emerged in opposition to Marxism–Leninism. Libertarian Marxism is often critical of reformist positions such as those held by social democrats. Libertarian Marxist currents often draw from Karl Marx and Friedrich Engels' later works, specifically the Grundrisse and The Civil War in France; emphasizing the Marxist belief in the ability of the working class to forge its own destiny without the need for a vanguard party to mediate or aid its liberation. Along with anarchism, libertarian Marxism is one of the main currents of libertarian socialism. Libertarian Marxism includes currents such as autonomism, council communism, De Leonism, Lettrism, parts of the New Left, Situationism, Socialisme ou Barbarie and workerism. Libertarian Marxism has often had a strong influence on both post-left and social anarchists. Notable theorists of libertarian Marxism have included Maurice Brinton, Cornelius Castoriadis, Guy Debord, Raya Dunayevskaya, Daniel Guérin, C. L. R. James, Rosa Luxemburg, Antonio Negri, Anton Pannekoek, Fredy Perlman, Ernesto Screpanti, E. P. Thompson, Raoul Vaneigem and Yanis Varoufakis, who claims that Marx himself was a libertarian Marxist.
  • 10.4K
  • 11 Nov 2022
Topic Review
Vitamin D Synthesis and Metabolism
Vitamin D, conventionally considered a nutrient, is a potent hormone regulating many physiological functions. Vitamin D exists as a prohormone that needs to be transformed into biologically active products that bind to their cognate nuclear receptors to regulate diverse physiological processes.
  • 10.4K
  • 13 Apr 2022
Topic Review
Moral Disengagement
Moral disengagement is a term from social psychology for the process of convincing the self that ethical standards do not apply to oneself in a particular context. This is done by separating moral reactions from inhumane conduct and disabling the mechanism of self-condemnation. Thus, moral disengagement involves a process of cognitive re-construing or re-framing of destructive behavior as being morally acceptable without changing the behavior or the moral standards. In social cognitive theory of morality, self-regulatory mechanisms embedded in moral standards and self-sanctions translate moral reasoning into actions, and, as a result, moral agency is exerted. Thus, the moral self is situated in a broader, socio-cognitive self-theory consisting of self-organizing, proactive, self-reflective, and self-regulative mechanisms. Three major sub-functions are operating in this self-regulatory system in which moral agency is grounded. The first sub-function is self-monitoring of one's conduct, which is the initial step of taking control over it. "Action gives rise to self-reactions through a judgmental function in which conduct is evaluated against internal standards and situational circumstances". Thus, moral judgments evoke self-reactive influence. The self-reactive and judgmental mechanisms constitute the second and third sub-function. Generally, moral standards are adopted to serve as guides for good behavior and as deterrents for bad conduct. Once internalized control has developed, people regulate their actions by the standards they apply to themselves and this give them self-satisfaction and a sense of self-worth. Individuals refrain from behaving in ways that violate their moral standards in order to avoid self-condemnation. Therefore, self-sanctions play a significant role in keeping conduct in line with these internal moral standards and hence also in regulating inhumane conduct. However, moral standards only function as fixed internal regulators of conduct when self-regulatory mechanisms have been activated. Many different social and psychological processes prevent the activation of self-sanction. Selective activation of self-sanctions and internal moral control or disengagement allows for a wide range of behaviour, given the same moral standard. Moral disengagement functions in the perpetration of inhumanities through moral justification, euphemistic labelling, advantageous comparison, displacing or diffusing responsibility, disregarding or misrepresenting injurious consequences, and dehumanising the victim. Rather than operating independently, these cognitive mechanisms are interrelated within a sociostructural context to promote inhumane conduct in people's daily lives.
  • 10.4K
  • 10 Oct 2022
Topic Review
Comrade
The term "comrade" generally means 'mate', 'colleague', or 'ally', and derives from the Spanish and Portuguese, term camarada, literally meaning 'chamber mate', from Latin camera, meaning 'chamber' or 'room'. It may also specifically mean "fellow soldier". Political use of the term was inspired by the French Revolution , after which it grew into a form of address between socialists and workers. Since the Russian Revolution, popular culture in the Western world has often associated it with communism.
  • 10.4K
  • 14 Oct 2022
Topic Review
Barack Obama "Hope" Poster
The Barack Obama "Hope" poster is an image of US president Barack Obama designed by American artist Shepard Fairey. The image was widely described as iconic and came to represent Obama's 2008 presidential campaign. It is a stylized stencil portrait of Obama in solid red, beige and (light and dark) blue, with the word "progress", "hope", or "change" below (and other words in some versions). Fairey based the design on a photo taken by former Associated Press (AP) freelance photographer Mannie Garcia. He created the design in a day and printed it first as a street poster. It was then widely distributed—both as a digital image and other paraphernalia—during the 2008 election season, with approval from the Obama campaign. By July 2008, Sticker Robot had printed over 200,000 vinyl "Hope" stickers, 75% of which had been given away to support the cause. The image became one of the most widely recognized symbols of Obama's campaign, spawning many variations and imitations, including some commissioned by the Obama campaign. In January 2009, after Obama had won the election, Fairey's mixed-media stenciled portrait version of the image was acquired by the Smithsonian Institution for its National Portrait Gallery. Later that month, the photograph that Fairey based the poster on was identified and the AP began negotiations for compensation. Fairey sued for a declaratory judgment that his poster was a fair use of the photograph. The parties settled out of court in January 2011. In February 2012, Fairey pleaded guilty to destroying and fabricating evidence showing that he had used the photograph; in September, he was sentenced to two years of probation, 300 hours of community service, and a fine of $25,000.
  • 10.4K
  • 29 Sep 2022
Topic Review
Natural Herbals and Spices in Wound Healing
Herbal medicines have been employed in folk medicine to accelerate wound healing since ancient times. Many plants and various preparations thereof have been used traditionally in relation to wound treatment, especially due to their immense potential to affect wound healing. Plant-based extracts and/or isolates support tissue regeneration through a variety of mechanisms, which often work together to improve the whole healing process. Currently, the efficacy of many of these herbs is well documented together with their mechanisms of action. Therefore, natural products as well as their pure compounds are an emerging source of alternative medicinal compounds for the management of various diseases, among which is wound healing.
  • 10.4K
  • 29 Jun 2022
Topic Review
Brilliant Blue FCF
Brilliant Blue FCF (Blue 1) is a synthetic organic compound used primarily as a blue colorant for processed foods, medications, dietary supplements, and cosmetics. It is classified as a triarylmethane dye and is known under various names, such as FD&C Blue No. 1 or Acid Blue 9. It is denoted by E number E133 and has a color index of 42090. It has the appearance of a blue powder and is soluble in water and glycerol, with a maximum absorption at about 628 nanometers. It is one of the oldest FDA-approved color additives and is generally considered nontoxic and safe.
  • 10.4K
  • 17 Nov 2022
Topic Review
Battery Specifications
Batteries are the heart and the bottleneck of portable electronic systems. They power electronics and determine the system run time, with the size and volume determining factors in their design and implementation. Understanding the material properties of the battery components—anode, cathode, electrolyte, and separator—and their interaction is necessary to establish selection criteria based on their correlations with the battery metrics: capacity, current density, and cycle life. 
  • 10.4K
  • 07 Sep 2022
Topic Review
Topical Antifungal-Corticosteroid Combinations
A broad range of topical antifungal formulations containing miconazole or terbinafine as actives are commonly used as efficacious choices for combating fungal skin infections. Their many benefits, owing to their specific mechanism of action, include their ability to target the site of infection, enhance treatment efficacy and reduce the risk of systemic side effects. Their proven efficacy, and positioning in the treatment of fungal skin infections, is enhanced by high patient compliance, especially when appropriate vehicles such as creams, ointments and gels are used.
  • 10.3K
  • 18 Aug 2022
Topic Review
Travis (Chimpanzee)
Travis (October 21, 1995 – February 16, 2009) was a male common chimpanzee (Pan troglodytes) who, in February 2009, mauled his owner's friend in Stamford, Connecticut. He blinded her, severed several body parts and lacerated her face. He was shot dead by a police officer. As an animal actor, Travis had appeared in several television shows and commercials, including spots for Pepsi and Old Navy. He had also appeared on The Maury Povich Show, The Man Show, and a television pilot that featured Sheryl Crow and Michael Moore.
  • 10.3K
  • 07 Nov 2022
Topic Review
Olefins Production via Steam Cracking:Effect of Operating Parameters
Various parameters need to be considered to optimize a pyrolysis reactor for the production of ethylene and propylene. These parameters are included temperature, residence time, steam-to-hydrocarbon ratio, and feedstock composition. A higher reaction temperature results in a higher yield of ethylene, a shorter residence time, and higher reaction velocities. A low operating pressure is preferred for this process because of the gas phase reaction inside the reactor tubes and the production of more gaseous molecules for its reactions to the right. The reactor pressure must be kept as low as possible (between 170 and 250 kPa). The gas pressure in the reactor tube outlet is indirectly adjusted by the suction process gas pressure of the compressor in the compression section, downstream of the process. As mentioned earlier, to reach lower hydrocarbon pressures, process steam is co-fed with the hydrocarbon feed to reduce the hydrocarbon partial pressure and lower coke deposition. The addition of steam decreases the partial pressure of the hydrocarbon feed and favors the formation of primary products.
  • 10.3K
  • 16 Dec 2021
Topic Review
Ecological Urban Planning and Design
Urbanization is a defining feature of the modern age, yet the current model of urban development profoundly alters the natural environment, often reducing biodiversity and ultimately threatening human wellbeing. An ecologically based urban planning and design paradigm should consider a more harmonious relationship. Through a systematic literature review of 57 papers, this research identified relevant concepts and theories that could underpin this new paradigm. It revealed a noticeable increase in academic interest in this subject since 2013 and the development of concepts and theories that reflect a more holistic socio-ecological systems approach to urban planning and design based on a transdisciplinary integration and synthesis of research. Seven main themes underpin the academic literature: ecosystem services, socio-ecological systems, resilience, biodiversity, landscape, green infrastructure, as well as integrated and holistic approaches. Six of these can be organised into either a sustainability stream or a spatial stream, representing the foundations of a potential new ecological urban planning and design paradigm that applies sustainability-related concepts in a spatial setting. The final theme, integrated and holistic, includes concepts that reflect the fundamental characteristics of this new paradigm, which can be termed ‘urban consonance’
  • 10.3K
  • 29 Oct 2020
Topic Review
Social Structure
Social structure refers to the patterned arrangements of social relationships, institutions, and norms that shape and guide human behavior within a society. It encompasses both formal institutions, such as government and education, and informal norms, roles, and values that govern social interactions. Social structure provides a framework for understanding the organization and functioning of societies, influencing individuals' opportunities, behaviors, and relationships within social contexts.
  • 10.3K
  • 02 Feb 2024
Topic Review
Year
A year is the orbital period of a planetary body, for example, the Earth, moving in its orbit around the Sun. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by change in weather, the hours of daylight, and, consequently, vegetation and soil fertility. In temperate and subpolar regions around the planet, four seasons are generally recognized: spring, summer, autumn and winter. In tropical and subtropical regions, several geographical sectors do not present defined seasons; but in the seasonal tropics, the annual wet and dry seasons are recognized and tracked. A calendar year is an approximation of the number of days of the Earth's orbital period, as counted in a given calendar. The Gregorian calendar, or modern calendar, presents its calendar year to be either a common year of 365 days or a leap year of 366 days, as do the Julian calendars; see below. For the Gregorian calendar, the average length of the calendar year (the mean year) across the complete leap cycle of 400 years is 365.2425 days. The ISO standard ISO 80000-3, Annex C, supports the symbol a (for Latin annus) to represent a year of either 365 or 366 days. In English, the abbreviations y and yr are commonly used. In astronomy, the Julian year is a unit of time; it is defined as 365.25 days of exactly 86,400 seconds (SI base unit), totalling exactly 31,557,600 seconds in the Julian astronomical year. The word year is also used for periods loosely associated with, but not identical to, the calendar or astronomical year, such as the seasonal year, the fiscal year, the academic year, etc. Similarly, year can mean the orbital period of any planet; for example, a Martian year and a Venusian year are examples of the time a planet takes to transit one complete orbit. The term can also be used in reference to any long period or cycle, such as the Great Year.
  • 10.3K
  • 14 Oct 2022
Topic Review
Intergalactic Space
Outer space, or simply space, is the expanse that exists beyond the Earth and between celestial bodies. Outer space is not completely empty—it is a hard vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium, as well as electromagnetic radiation, magnetic fields, neutrinos, dust, and cosmic rays. The baseline temperature of outer space, as set by the background radiation from the Big Bang, is 2.7 kelvins (−270.45 °C; −454.81 °F). The plasma between galaxies accounts for about half of the baryonic (ordinary) matter in the universe; it has a number density of less than one hydrogen atom per cubic metre and a temperature of millions of kelvins. Local concentrations of matter have condensed into stars and galaxies. Studies indicate that 90% of the mass in most galaxies is in an unknown form, called dark matter, which interacts with other matter through gravitational but not electromagnetic forces. Observations suggest that the majority of the mass-energy in the observable universe is dark energy, a type of vacuum energy that is poorly understood. Intergalactic space takes up most of the volume of the universe, but even galaxies and star systems consist almost entirely of empty space. Outer space does not begin at a definite altitude above the Earth's surface. However, the Kármán line, an altitude of 100 km (62 mi) above sea level, is conventionally used as the start of outer space in space treaties and for aerospace records keeping. The framework for international space law was established by the Outer Space Treaty, which entered into force on 10 October 1967. This treaty precludes any claims of national sovereignty and permits all states to freely explore outer space. Despite the drafting of UN resolutions for the peaceful uses of outer space, anti-satellite weapons have been tested in Earth orbit. Humans began the physical exploration of space during the 20th century with the advent of high-altitude balloon flights. This was followed by manned rocket flights and, then, manned Earth orbit, first achieved by Yuri Gagarin of the Soviet Union in 1961. Due to the high cost of getting into space, manned spaceflight has been limited to low Earth orbit and the Moon. On the other hand, unmanned spacecraft have reached all of the known planets in the Solar System. Outer space represents a challenging environment for human exploration because of the hazards of vacuum and radiation. Microgravity also has a negative effect on human physiology that causes both muscle atrophy and bone loss. In addition to these health and environmental issues, the economic cost of putting objects, including humans, into space is very high.
  • 10.3K
  • 23 Nov 2022
Topic Review
Botulinum Neurotoxin Injection Targeting the Platysma Muscle
The platysma muscle is a thin superficial muscle that covers the entire neck and lower part of the face. The platysma muscle is the primary target muscle for botulinum neurotoxin injection therapy aimed at treating platysmal band and lower facial lifting. In the procedure of botulinum neurotoxin injection therapy, a lack of knowledge of the anatomy of the platysma muscle and the properties of botulinum neurotoxin can lead to side effects such as dysphagia, dysphonia, and weakness of the neck muscles. Anatomically safe injection sites have been proposed for the platysma muscle, and the appropriate injection technique has been reviewed.
  • 10.3K
  • 20 Dec 2022
Topic Review
List of International Mathematical Olympiad Participants
The International Mathematical Olympiad (IMO) is an annual international high school mathematics competition focused primarily on pre-collegiate mathematics, and is the oldest of the international science olympiads. The awards for exceptional performance include medals for roughly the top half participants, and honorable mentions for participants who solve at least one problem perfectly. This is a list of participants who have achieved notability. This includes participants that went on to become notable mathematicians, participants who won medals at an exceptionally young age, or participants who scored highly.
  • 10.3K
  • 26 Oct 2022
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