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Population Stabilization
Zero population growth, sometimes abbreviated ZPG, is a condition of demographic balance where the number of people in a specified population neither grows nor declines; that is, the number of births plus in-migrants equals the number of deaths plus out-migrants. The Zero Population Growth organization, founded by biologist Paul R. Ehrlich, induced a prominent political movement since the 1960s, aiming to reach zero population growth. The movement considers zero population growth to be an objective towards which countries and the whole world should strive in the interests of accomplishing long-term optimal standards and conditions of living. It faces substantial support as well as criticism, involving different groups of people in society. Definition The growth rate of a population in a given year equals the number of births minus the number of deaths plus immigration minus emigration expressed as a percentage of the population at the beginning of the given year. For exampl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Demography
Demography () is the statistical study of human populations: their size, composition (e.g., ethnic group, age), and how they change through the interplay of fertility (births), mortality (deaths), and migration. Demographic analysis examines and measures the dimensions and dynamics of populations; it can cover whole societies or groups defined by criteria such as education, nationality, religion, and ethnicity. Educational institutions usually treat demography as a field of sociology, though there are a number of independent demography departments. These methods have primarily been developed to study human populations, but are extended to a variety of areas where researchers want to know how populations of social actors can change across time through processes of birth, death, and migration. In the context of human biological populations, demographic analysis uses administrative records to develop an independent estimate of the population. Demographic analysis estima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environmentalism
Environmentalism is a broad philosophy, ideology, and social movement about supporting life, habitats, and surroundings. While environmentalism focuses more on the environmental and nature-related aspects of green ideology and politics, ecologism combines the ideology of social ecology and environmentalism. ''Ecologism'' is more commonly used in continental European languages, while ''environmentalism'' is more commonly used in English but the words have slightly different connotations. Environmentalism advocates the preservation, restoration and improvement of the natural environment and critical earth system elements or processes such as the climate, and may be referred to as a movement to control pollution or protect plant and animal diversity. For this reason, concepts such as a land ethics, environmental ethics, biodiversity, ecology, and the biophilia hypothesis figure predominantly. The environmentalist movement encompasses various approaches to addressing envi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birth Rate
Birth rate, also known as natality, is the total number of live childbirth, human births per 1,000 population for a given period divided by the length of the period in years. The number of live births is normally taken from a universal registration system for births; population counts from a census, and estimation through specialized Demographics, demographic techniques such as population pyramids. The birth rate (along with mortality rate, mortality and human migration, migration rates) is used to calculate population growth. The estimated average population may be taken as the mid-year population. When the crude death rate is subtracted from the crude birth rate (CBR), the result is the rate of natural increase (RNI). This is equal to the rate of population change (excluding migration). The total (crude) birth rate (which includes all births)—typically indicated as births per 1,000 population—is distinguished from a set of age-specific rates (the number of births per 1,0 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Employment Rate
Employment-to-population ratio, also called the employment rate, is a statistical ratio that measures the proportion of a country's working age population (statistics are often given for ages 15 to 64) that is employed. This includes people that have stopped looking for work.Employment/Population Ratios for the 50 Largest Metropolitan Statistical Areas: 2008, 2009, and 2010. (2011, September). Retrieved December 10, 2012, from United States Census Bureau website: https://www.census.gov/prod/2011pubs/ acsbr10-09.pdf The International Labour Organization states that a person is considered employed if they have worked at least 1 hour in "gainful" employment in the most recent week. The employment-to-population ratio is usually calculated and reported periodically for the economy by the national agency of statistics. It is usually calculated by using a survey data collection and the answers of certain people to the questions of the national agency for the economy an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automation
Automation describes a wide range of technologies that reduce human intervention in processes, mainly by predetermining decision criteria, subprocess relationships, and related actions, as well as embodying those predeterminations in machines. Automation has been achieved by various means including Mechanical system, mechanical, hydraulic, pneumatic, electrical, electronic devices, and computers, usually in combination. Complicated systems, such as modern Factory, factories, airplanes, and ships typically use combinations of all of these techniques. The benefit of automation includes labor savings, reducing waste, savings in electricity costs, savings in material costs, and improvements to quality, accuracy, and precision. Automation includes the use of various equipment and control systems such as machinery, processes in factories, boilers, and heat-treating ovens, switching on telephone networks, steering, Stabilizer (ship), stabilization of ships, aircraft and other applic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Workforce
In macroeconomics, the workforce or labour force is the sum of people either working (i.e., the employed) or looking for work (i.e., the unemployed): \text = \text + \text Those neither working in the marketplace nor looking for work are out of the labour force. The sum of the labour force and out of the labour force results in the noninstitutional civilian population, that is, the number of people who (1) work (i.e., the employed), (2) can work but don't, although they are looking for a job (i.e., the unemployed), or (3) can work but don't, and are not looking for a job (i.e., out of the labour force). Stated otherwise, the noninstitutional civilian population is the total population minus people who cannot or choose not to work (children, retirees, soldiers, and incarcerated people). The noninstitutional civilian population is the number of people potentially available for civilian employment. \begin \text &= \text + \text \\ & ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nativism (politics)
Nativism is the political policy of promoting or protecting the interests of native-born or indigenous people over those of immigrants, including the support of anti-immigration and immigration-restriction measures. Definition According to Cas Mudde, a University of Georgia professor, nativism is a largely American notion that is rarely debated in Western Europe or Canada; the word originated with mid-19th-century political parties in the United States, most notably the Know Nothing party, which saw Catholic immigration from nations such as Germany and Ireland as a serious threat to native-born Protestant Americans. In the United States, nativism does not refer to a movement led by Native Americans, also referred to as American Indians. Causes According to Joel S. Fetzer, opposition to immigration commonly arises in many countries because of issues of national, cultural, and religious identity. The phenomenon has especially been studied in Australia, Canada, New Ze ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family Planning
Family planning is the consideration of the number of children a person wishes to have, including the choice to have no children, and the age at which they wish to have them. Things that may play a role on family planning decisions include marital situation, career or work considerations, or financial situations. If sexually active, family planning may involve the use of Birth control, contraception (birth control) and other techniques to control the timing of Human reproduction, reproduction. Other aspects of family planning aside from contraception include sex education, prevention and management of sexually transmitted infections, pre-conception counseling and pregnancy#Management, management, and infertility management.World Health Organization. (n.d.)Sexual and Reproductive Health. Retrieved on 30 October 2019. Family planning, as defined by the United Nations and the World Health Organization, encompasses services leading up to conception. Abortion is another form of family ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fertility
Fertility in colloquial terms refers the ability to have offspring. In demographic contexts, fertility refers to the actual production of offspring, rather than the physical capability to reproduce, which is termed fecundity. The fertility rate is the average number of children born during an individual's lifetime. In medicine, fertility refers to the ability to have children, and infertility refers to difficulty in reproducing naturally. In general, infertility or subfertility in humans is defined as not being able to conceive a child after one year (or longer) of unprotected sex. The antithesis of ''fertility'' is infertility, while the antithesis of ''fecundity'' is sterility. Demography In demographic contexts, fertility refers to the actual production of offspring, rather than the physical capability to produce which is termed fecundity. While fertility can be measured, fecundity cannot be. Demographers measure the fertility rate in a variety of ways, which can be broa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mortality Rate
Mortality rate, or death rate, is a measure of the number of deaths (in general, or due to a specific cause) in a particular Statistical population, population, scaled to the size of that population, per unit of time. Mortality rate is typically expressed in units of deaths per 1,000 individuals per year; thus, a mortality rate of 9.5 (out of 1,000) in a population of 1,000 would mean 9.5 deaths per year in that entire population, or 0.95% out of the total. It is distinct from "morbidity", which is either the prevalence or Incidence (epidemiology), incidence of a disease, and also from the incidence rate (the number of newly appearing cases of the disease per unit of time). An important specific mortality rate measure is the crude death rate, which looks at mortality from all causes in a given time interval for a given population. , for instance, the Central Intelligence Agency, CIA estimates that the crude death rate globally will be 7.7 deaths per 1,000 people in a population p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Judith Blake (sociologist)
Judith Kincade Blake (March 3, 1926 – April 29, 1993) was an American sociologist and demographer. She established the first Department of Demography, at the University of California, Berkeley and was the first holder of an endowed chair, at the University of California, Los Angeles. Blake carried out one of the earliest surveys of fertility and population in a developing country, in Jamaica. In a 1956 publication, she identified a key concept now known as "proximate determinants of fertility", which became a basis for subsequent fertility analysis and policy design. For much of her career, Blake studied the demographics of families, using available secondary or national US data sets to examine contemporary population policy issues. She frequently challenged conventional wisdom, and emphasized that economic theories were insufficient to explain population shifts. Her book ''Family Size and Achievement'' (1989) won the American Sociological Association's William J. Goode Bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Life (magazine)
''Life'' (stylized as ''LIFE'') is an American magazine launched in 1883 as a weekly publication. In 1972, it transitioned to publishing "special" issues before running as a monthly from 1978 to 2000. Since then, ''Life'' has irregularly published "special" issues. Originally published from 1883 to 1936 as a general-interest and humor publication, it featured contributions from many important writers, illustrators and cartoonists of its time, such as Charles Dana Gibson and Norman Rockwell. In 1936, Henry Luce purchased the magazine, and relaunched it as the first all-photographic American news magazine. Its place in the history of photojournalism is considered one of its most important contributions to the world of publishing. From 1936 to the 1960s, ''Life'' was a wide-ranging general-interest magazine known for its photojournalism. During this period, it was one of the most popular magazines in the United States, with its circulation regularly reaching a quarter of the U.S. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
