Progressive educationProgressive education, or educational progressivism, is a pedagogical movement that began in the late 19th century and has persisted in various forms to the present. In Europe, progressive education took the form of the New Education Movement. The term progressive was engaged to distinguish this education from the traditional curricula of the 19th century, which was rooted in classical preparation for the early-industrial university and strongly differentiated by social class.
Variable costVariable costs are costs that change as the quantity of the good or service that a business produces changes. Variable costs are the sum of marginal costs over all units produced. They can also be considered normal costs. Fixed costs and variable costs make up the two components of total cost. Direct costs are costs that can easily be associated with a particular cost object. However, not all variable costs are direct costs. For example, variable manufacturing overhead costs are variable costs that are indirect costs, not direct costs.
MDMA3,4-Methylenedioxymethamphetamine (MDMA), commonly known as ecstasy (tablet form); and molly or mandy (crystal form), is a potent empathogen–entactogen with stimulant and minor psychedelic properties primarily used for recreational purposes. The beneficial pharmacological effects include altered sensations, increased energy, empathy, and pleasure. When taken by mouth, effects begin in 30 to 45 minutes and last three to six hours. MDMA was first developed in 1912 by Merck.
EuroscepticismEuroscepticism, also spelled as Euroskepticism or EU-scepticism, is a political position involving criticism of the European Union (EU) and European integration. It ranges from those who oppose some EU institutions and policies, and seek reform (Eurorealism, Eurocritical, or soft Euroscepticism), to those who oppose EU membership and see the EU as unreformable (anti-European Unionism, anti-EUism, or hard Euroscepticism). The opposite of Euroscepticism is known as pro-Europeanism, or European Unionism.
AversivesIn psychology, aversives are unpleasant stimuli that induce changes in behavior via negative reinforcement or positive punishment. By applying an aversive immediately before or after a behavior the likelihood of the target behavior occurring in the future is reduced. Aversives can vary from being slightly unpleasant or irritating to physically, psychologically and/or emotionally damaging. It is not the level of unpleasantness or intention that defines something as an aversive, but rather the level of effectiveness the unpleasant event has on changing (decreasing) behavior.
Gossypium hirsutumGossypium hirsutum, also known as upland cotton or Mexican cotton, is the most widely planted species of cotton in the world. Globally, about 90% of all cotton production is of cultivars derived from this species. In the United States, the world's largest exporter of cotton, it constitutes approximately 95% of all cotton production. It is native to Mexico, the West Indies, northern South America, Central America and possibly tropical Florida.
Demographic historyDemographic history is the reconstructed record of human population in the past. Given the lack of population records prior to the 1950s, there are many gaps in our record of demographic history. Historical demographers must make do with estimates, models and extrapolations. For the demographic methodology, see historical demography. World population estimates Estimating the ancestral population of anatomically modern humans, Colin McEvedy and Richard Jones chose bounds based on gorilla and chimpanzee population densities of 1/km2 and 3-4/km2, respectively, then assumed that as Homo erectus moved up the food chain, they lost an order of magnitude in density.
CultCult is a term, in most contexts pejorative, for a relatively small group which is typically led by a charismatic and self-appointed leader, who excessively controls its members, requiring unwavering devotion to a set of beliefs and practices which are considered deviant (outside the norms of society). This term is also used for a new religious movement or other social group which is defined by its unusual religious, spiritual, or philosophical beliefs and rituals, or its common interest in a particular person, object, or goal.
Environmental lawEnvironmental laws are laws that protect the environment. Environmental law is the collection of laws, regulations, agreements and common law that governs how humans interact with their environment. This includes environmental regulations; laws governing management of natural resources, such as forests, minerals, or fisheries; and related topics such as environmental impact assessments.
Informal educationInformal education is a general term for education that can occur outside of a traditional lecture or school based learning systems. The term even include customized-learning based on individual student interests within a curriculum inside a regular classroom, but is not limited to that setting. It could work through conversation, and the exploration and enlargement of experience. Sometimes there is a clear objective link to some broader plan, but not always.
