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Donor
A donor in general is a person, organization or government which donates something voluntarily. The term is usually used to represent a form of pure altruism, but is sometimes used when the payment for a service is recognized by all parties as representing less than the value of the donation and that the motivation is altruistic. In business law a ''donor'' is someone who is giving the gift (law), and a ''donee'' the person receiving the gift. More broadly, the term is used to refer to any entity that serves as the source of something transferred to a different entity, including - in scientific fields - the source of matter or energy passed from one object to another. The Online Etymology Dictionary traces the English-language word "donor" back to the mid-15th century, with origins in Anglo-French, Old French, Latin and Proto-Indo-European. In science Often the word is used as a shorter term for: * Blood donor * Donor (semiconductors) * Egg donor * Electron donor — (by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sperm Donation
Sperm donation is the provision by a man of his sperm with the intention that it be used in the artificial insemination or other 'fertility treatment' of a woman or women who are not his sexual partners in order that they may become pregnant by him. Where pregnancies go to full term, the sperm donor will be the biological father of every baby born from his donations. The man is known as a sperm donor and the sperm he provides is known as 'donor sperm' because the intention is that the man will give up all legal rights to any child produced from his sperm, and will not be the legal father. Sperm donation may also be known as 'semen donation'. A man provides his semen but the purpose of the donation is that his gametes contained within the semen, i.e. the sperm cells, be used to provide pregnancies for third parties. Sperm donation enables a man to father a child for third-party women and is therefore categorized as a form of third-party reproduction. The process of inseminating ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organ Donation
Organ donation is the process when a person allows an organ (anatomy), organ of their own to be removed and organ transplantation, transplanted to another person, #Legislation and global perspectives, legally, either by consent while the donor is alive or dead with the assent of the next of kin. Donation may be for research or, more commonly, healthy transplantable organs and tissues may be donated to be transplanted into another person. Common transplantations include kidney transplantation, kidneys, heart transplantation, heart, liver transplantation, liver, pancreas transplantation, pancreas, intestine transplantation, intestines, lung transplantation, lungs, bone transplantation, bones, bone marrow transplantation, bone marrow, skin transplantation, skin, and cornea transplantation, corneas. Some organs and tissues can be donated by living donors, such as a kidney or part of the liver, part of the pancreas, part of the lungs or part of the intestines, but most donations oc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egg Donation
Egg donation is the process by which a woman donates eggs to enable another woman to conceive as part of an assisted reproduction treatment or for biomedical research. For assisted reproduction purposes, egg donation typically involves in vitro fertilization technology, with the eggs being fertilized in the laboratory; more rarely, unfertilized eggs may be frozen and stored for later use. Egg donation is a third party reproduction as part of assisted reproductive technology. In the United States, the American Society for Reproductive Medicine has issued guidelines for these procedures, and the Food and Drug Administration has a number of guidelines as well. There are boards in countries outside of the US which have the same regulations. However, egg donation agencies in the U.S. can choose whether to abide by the society's regulations or not. History The first child born from egg donation was reported in Australia in 1983. In July 1983, a clinic in Southern California reported ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blood Donation
A blood donation occurs when a person voluntarily has blood drawn and used for transfusions and/or made into biopharmaceutical medications by a process called fractionation (separation of whole blood components). Donation may be of whole blood, or of specific components directly ( apheresis). Blood banks often participate in the collection process as well as the procedures that follow it. Today in the developed world, most blood donors are unpaid volunteers who donate blood for a community supply. In some countries, established supplies are limited and donors usually give blood when family or friends need a transfusion (directed donation). Many donors donate for several reasons, such as a form of charity, general awareness regarding the demand for blood, increased confidence in oneself, helping a personal friend or relative, and social pressure. Despite the many reasons that people donate, not enough potential donors actively donate. However, this is reversed during disa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donor Portrait
A donor portrait or votive portrait is a portrait in a larger painting or other work showing the person who commissioned and paid for the image, or a member of his, or (much more rarely) her, family. ''Donor portrait'' usually refers to the portrait or portraits of donors alone, as a section of a larger work, whereas ''votive portrait'' may often refer to a whole work of art intended as an ex-voto, including for example a Madonna, especially if the donor is very prominent. The terms are not used very consistently by art historians, as Angela Marisol Roberts points out, and may also be used for smaller religious subjects that were probably made to be retained by the commissioner rather than donated to a church. Donor portraits are very common in religious works of art, especially paintings, of the Middle Ages and Renaissance, the donor usually shown kneeling to one side, in the foreground of the image. Often, even late into the Renaissance, the donor portraits, especially when of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Official Development Assistance
Official development assistance (ODA) is a category used by the Development Assistance Committee (DAC) of the Organisation for Economic Co-operation and Development (OECD) to measure foreign aid. The DAC first adopted the concept in 1969. It is widely used as an indicator of international aid flow. It refers to material resources given by the governments of richer countries to promote the economic development of poorer countries and the welfare of their people. The donor government agency may disburse such resources to the government of the recipient country or through other organizations. Most ODA is in the form of grants, but some is measured as the concessional value in soft (low-interest) loans. In 2019, the annual amount of state donor aid counted as ODA was US$ 168 billion, of which US$ 152 billion came from DAC donors. Concept and definition In order to co-ordinate and measure international aid effectively, the DAC needs its members to have agreed clear criteria for w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gift (law)
A gift, in the law of property, is the voluntary and immediate transfer of property from one person (the donor or grantor) to another (the donee or grantee) without consideration. There are several type of gifts in property law, most notably ''inter vivos'' gifts which are made in the donor's lifetime and ''causa mortis'' (deathbed) gifts which are made in expectation of the donor's imminent death. Both types of gifts share three elements which must be met in order for the gift to be legally effective: donative intent (the intention of the donor to give the gift to the donee), the delivery of the gift to the donee, and the acceptance of the gift. In addition to those elements, ''causa mortis'' gifts require that the donor must die of the impending peril that he or she had contemplated when making the gift. ''Inter vivos'' gifts An ''inter vivos'' gift is an ordinary gift of personal property from one living person to another. It can be a gift of a present or future interest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donor (fairy Tale)
In fairy tales, a donor is a character who tests the hero (and sometimes other characters as well) and provides magical assistance to the hero upon their success. The fairy godmother is a well-known form of this character. Many other supernatural patrons feature in fairy tales; these include various kinds of animals and the spirit of a dead mother. In fairy tale and legend In his analysis of fairy tales, Vladimir Propp identified this role as the ''donor'' and listed it as one of the seven roles found in fairy tales. Before giving the hero magical support or advice, the donor may also test the hero, by questioning him, setting him tasks, or making requests of him. Then, the donor may directly give the hero a magical agent, advise him on how to find one, or offer to act on his behalf. If the character itself acts on behalf of the hero, it also takes on the role of ''helper'' in Propp's analysis. Because a donor is defined by acts, other characters may fill the role, even the v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electron Donor
In chemistry, an electron donor is a chemical entity that donates electrons to another compound. It is a reducing agent that, by virtue of its donating electrons, is itself oxidized in the process. Typical reducing agents undergo permanent chemical alteration through covalent or ionic reaction chemistry. This results in the complete and irreversible transfer of one or more electrons. In many chemical circumstances, however, the transfer of electronic charge to an electron acceptor may be only fractional, meaning an electron is not completely transferred, but results in an electron resonance between the donor and acceptor. This leads to the formation of charge transfer complexes in which the components largely retain their chemical identities. The electron donating power of a donor molecule is measured by its ionization potential which is the energy required to remove an electron from the highest occupied molecular orbital ( HOMO). The overall energy balance (ΔE), i.e., ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fairy Tale
A fairy tale (alternative names include fairytale, fairy story, magic tale, or wonder tale) is a short story that belongs to the folklore genre. Such stories typically feature magic, enchantments, and mythical or fanciful beings. In most cultures, there is no clear line separating myth from folk or fairy tale; all these together form the literature of preliterate societies. Fairy tales may be distinguished from other folk narratives such as legends (which generally involve belief in the veracity of the events described) and explicit moral tales, including beast fables. In less technical contexts, the term is also used to describe something blessed with unusual happiness, as in "fairy-tale ending" (a happy ending) or "fairy-tale romance". Colloquially, the term "fairy tale" or "fairy story" can also mean any far-fetched story or tall tale; it is used especially of any story that not only is not true, but could not possibly be true. Legends are perceived as real within t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donation
A donation is a gift for charity, humanitarian aid, or to benefit a cause. A donation may take various forms, including money, alms, services, or goods such as clothing, toys, food, or vehicles. A donation may satisfy medical needs such as blood or organs for transplant. Charitable donations of goods or services are also called '' gifts in kind''. Donating statistics In the United States, in 2007, the Bureau of Labor Statistics found that American households in the lowest fifth in terms of wealth, gave on average a higher percentage of their incomes to charitable organizations than those households in the highest fifth. Charity Navigator writes that, according to Giving USA, Americans gave $298 billion in 2011 (about 2% of GDP). The majority of donations were from individuals (73%), then from bequests (about 12%), foundations (2%) and less than 1% from corporations. The largest sector to receive donations was religious organizations (32%), then education (13%). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semiconductor
A semiconductor is a material which has an electrical conductivity value falling between that of a conductor, such as copper, and an insulator, such as glass. Its resistivity falls as its temperature rises; metals behave in the opposite way. Its conducting properties may be altered in useful ways by introducing impurities ("doping") into the crystal structure. When two differently doped regions exist in the same crystal, a semiconductor junction is created. The behavior of charge carriers, which include electrons, ions, and electron holes, at these junctions is the basis of diodes, transistors, and most modern electronics. Some examples of semiconductors are silicon, germanium, gallium arsenide, and elements near the so-called "metalloid staircase" on the periodic table. After silicon, gallium arsenide is the second-most common semiconductor and is used in laser diodes, solar cells, microwave-frequency integrated circuits, and others. Silicon is a critical element for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
