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Topic Review
Drainpipe Materials through the Centuries
Agricultural drainage plays an important role worldwide in food production and conservation of soil resources, while safeguarding investments in agricultural production and irrigation projects. It can improve crop yields and land productivity, especially on poorly drained soils and in cases of prolonged waterlogging. Both the subsurface drainage materials and the installation techniques used have a long history dating to prehistoric times. Over time, new subsurface drainage materials, installation techniques and modernized equipment developed continuously to take advantage of technological advances provided through research and development, while the planning and organization of the implementation process improved.
  • 8.6K
  • 27 Oct 2020
Topic Review
Mail-Order Bride
A mail-order bride is a woman who lists herself in catalogs and is selected by a man for marriage. In the twentieth century, the trend was primarily towards women living in developing countries seeking men in more developed nations. In the twenty-first century, the trend is now based primarily on internet-based meeting places which do not per se qualify as mail-order bride services. The majority of the women listed in the twentieth-century and twenty-first-century services are from Southeast Asia, countries of the former Eastern Bloc and (to a lesser extent) from Latin America. Since the collapse of the Soviet Union, large numbers of eastern European women have advertised themselves in such a way, primarily from Russia , Belarus , Ukraine , and Moldova. Men who list themselves in such publications are referred to as "mail-order husbands", although this is much less common. The term "mail-order bride" is both criticized by owners (and customers) of international marriage agencies and used by them as an easily recognizable term.
  • 8.5K
  • 25 Nov 2022
Topic Review
Electric Arc Furnace Slag
EAF slag is a non-metallic by-product that consists mainly of silicates and oxides formed during the process of refining the molten steel. Raw EAF slag often appears as grey or black colored lumps, depending on its ferrous oxide content. This type of slag generally has a rough surface texture, with a surface pore diameter of 0.01–10 μm.
  • 8.5K
  • 26 Oct 2020
Topic Review
Primary Socialisation
Primary socialization in sociology is the period early in a person's life during which they initially learn and build themselves through experiences and interactions around them. This process starts at home through the family, in which one learns what is or is not accepted in society, social norms, and cultural practices that eventually one is likely to take up. Primary socialization through the family teaches children how to bond, create relationships, and understand important concepts including love, trust, and togetherness. Several agents of primary socialization involve institutions such as the family, childhood friends, the educational system, and social media. All these agents influence the socialization process of a child that they build on for the rest their life. These agents are limited to people who immediately surround a person such as friends and family—but other agents, such as social media and the educational system have a big influence on people as well. The media is an influential agent of socialization because it can provide vast amounts of knowledge about different cultures and society. It is through these processes that children learn how to behave in public versus at home, and eventually learn how they should behave as people under different circumstances; this is known as secondary socialization. A vast variety of people have contributed to the theory of primary socialization, of those including Sigmund Freud, George Herbert Mead, Charles Cooley, Jean Piaget and Talcott Parsons. However, Parson's theories are the earliest and most significant contributions to socialization and cognitive development.
  • 8.5K
  • 18 Nov 2022
Topic Review
Rainfall Data
As is widely recognized, rainfall data is necessary for the mathematical modelling of extreme hydrological events, such as droughts or floods, as well as for evaluating surface and subsurface water resources and their quality. The phase, quantity, and elevation of generic hydrometeors in the atmosphere can be estimated by ground-based radars. Satellites can provide images with visible and infrared radiation, and they can also serve as platforms for radiometers to derive the quantity and phase of hydrometeors. Radars and satellites provide spatial information on precipitation at wide scales, avoiding many problems connected to local ground measurements, including those for the areal inhomogeneity of a network. However, direct rainfall observations at point scale can be obtained only by rain gauges installed at the soil surface.
  • 8.5K
  • 29 Jan 2022
Topic Review
Bearing (Navigation)
In navigation, bearing is the horizontal angle between the direction of an object and another object, or between it and that of true north.
  • 8.4K
  • 05 Dec 2022
Topic Review
Multifactor Leadership Questionnaire
The Multifactor Leadership Questionnaire (MLQ) is a psychological inventory consisting of 36 items pertaining to leadership styles and 9 items pertaining to leadership outcomes. The MLQ was constructed by Bruce J. Avolio and Bernard M. Bass with the goal to assess a full range of leadership styles. The MLQ is composed of 9 scales that measure three leadership styles: transformational leadership (5 scales), transactional leadership (2 scales), and passive/avoidant behavior (2 scales), and 3 scales that measure outcomes of leadership. The MLQ takes an average of 15 minutes to complete and can be administered to an individual or group. The MLQ can be used to differentiate effective and ineffective leaders at all organizational levels and has been validated across many cultures and types of organizations. It is used for leadership development and research. The MLQ is designed as a multi-rater (or 360-degree) instrument, meaning that the leadership assessment considers the leader's self-assessment alongside the assessments of their leadership from their superiors, peers, subordinates, and others. The Leader (Self) Form and the Rater Form of the MLQ can be completed and assessed separately - however validity is much weaker when assessing leadership using only the Leader (Self) Form. Following the publication of the original MLQ in 1990, new versions of the MLQ were gradually developed to fit different assessment needs. The current versions of the MLQ are: Multifactor Leadership Questionnaire 360 (MLQ 360), Multifactor Leadership Questionnaire Self Form (MLQ Self), Multifactor Leadership Questionnaire Rater Form (MLQ Rater Form), Team Multifactor Leadership Questionnaire (TMLQ), and Multifactor Leadership Questionnaire Actual vs. Ought. All MLQ versions are protected by copyright law and published by Mind Garden, Inc. The MLQ underwent a re-branding for its scales in 2015 with the justification of replacing the heavily-academic scale names with terms that would be more widely and easily understood by those outside of academia, such as business leaders and consultants. Recent academic research using the MLQ continue to use the original scale names. The MLQ is often combined with the Authentic Leadership Questionnaire (ALQ) to assess the self-awareness, transparency, ethics/morality, and processing ability of leaders (the ALQ was constructed by Avolio with William L. Gardner and Fred O. Walumbwa in 2007).
  • 8.4K
  • 20 Oct 2022
Topic Review
Demonic Possession
Demonic possession is the belief that a person's actions are controlled by an alien spirit, demon, or entity. Symptoms of demonic possession commonly claimed by victims include missing memories, perceptual distortions, loss of a sense of control, and hyper-suggestibility. Erika Bourguignon found in a study of 488 societies worldwide, seventy-four percent believe in possession by spirits, with the highest numbers of beliefs in Pacific cultures and the lowest incidence among Native Americans of both North and South America.
  • 8.5K
  • 25 Nov 2022
Topic Review
Mukhannathun
Mukhannathun (مخنثون "effeminate ones", "men who resemble women", singular mukhannath) was a term used in Classical Arabic to refer to men who were perceived as effeminate. Mukhannathun, especially those in the city of Medina, are mentioned throughout the ahadith and in the works of many early Arabic and Islamic writers. During the Rashidun era and first half of the Umayyad era, they were strongly associated with music and entertainment. During the Abbasid caliphate, the word itself was used as a descriptor for men employed as dancers, musicians, or comedians. In later eras, the term mukhannath was associated with the receptive partner in gay sexual practices, an association that has persisted into the modern day. Khanith is a vernacular Arabic term used in some parts of the Arabian Peninsula to denote the gender role ascribed to males who function sexually, and in some ways socially, as women. The term is closely related to the word mukhannath.
  • 8.4K
  • 10 Nov 2022
Topic Review
Nutraceuticals
Nutraceuticals are essential food constituents that provide nutritional benefits as well as medicinal effects. The benefits of these foods are due to the presence of active compounds such as carotenoids, collagen hydrolysate, and dietary fibers.
  • 8.4K
  • 18 May 2021
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