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89-493: The rockshelter itself at Shum Laka is approximately 50 meters wide at its greatest point and 20 meters deep. Stratigraphic dating of surface and near surface deposits support occupations as early as 30,000 BP. Geomorphological analysis determined that the rockshelter had been subjected to alluvial depositional events during the Holocene, but archaeological deposits remained mostly intact and in situ . Fluvial erosional processes at

178-425: A cell within a whole organ intact and under perfusion may be in situ investigation. This would not be in vivo as the donor is sacrificed by experimentation, but it would not be the same as working with the cell alone (a common scenario for in vitro experiments). For instance, an example of biomedical engineering in situ involves the procedures to directly create an implant from a patient's own tissue within

267-741: A non-governmental organization in the service of international educational development since December 1925 and joined UNESCO in 1969, after having established a joint commission in 1952. After the signing of the Atlantic Charter and the Declaration of the United Nations , the Conference of Allied Ministers of Education (CAME) began meetings in London which continued from 16 November 1942 to 5 December 1945. On 30 October 1943,

356-477: A Commission to study the feasibility of having nations freely share cultural, educational and scientific achievements. This new body, the International Committee on Intellectual Cooperation (ICIC), was created in 1922 and counted such figures as Henri Bergson , Albert Einstein , Marie Curie , Robert A. Millikan , and Gonzague de Reynold among its members (being thus a small commission of

445-482: A Preparatory Commission was established. The Preparatory Commission operated between 16 November 1945, and 4 November 1946 — the date when UNESCO's Constitution came into force with the deposit of the twentieth ratification by a member state. The first General Conference took place from 19 November to 10 December 1946, and elected Julian Huxley to Director-General. United States Army colonel, university president and civil rights advocate Blake R. Van Leer joined as

534-679: A United Nations Conference for the establishment of an educational and cultural organization (ECO/CONF) was convened in London from 1 to 16 November 1945 with 44 governments represented. The idea of UNESCO was largely developed by Rab Butler , the Minister of Education for the United Kingdom, who had a great deal of influence in its development. At the ECO/CONF, the Constitution of UNESCO was introduced and signed by 37 countries, and

623-663: A biennium, as well as links to relevant programmatic and financial documents. These two distinct sets of information are published on the IATI registry, respectively based on the IATI Activity Standard and the IATI Organization Standard. There have been proposals to establish two new UNESCO lists. The first proposed list will focus on movable cultural heritage such as artifacts, paintings, and biofacts. The list may include cultural objects, such as

712-446: A crucial determinant for treatment protocols and prognostic assessment. Space exploration utilizes in situ planetary research methods, conducting direct observational studies and data collection on celestial bodies , thereby avoiding the complexities inherent in sample-return missions . The humanities , notably archaeology , employ in situ methodologies to maintain contextual authenticity. Archaeological investigations preserve

801-498: A declaration of anthropologists (among them was Claude Lévi-Strauss ) and other scientists in 1950 and concluding with the 1978 Declaration on Race and Racial Prejudice . In 1955, the Republic of South Africa withdrew from UNESCO saying that some of the organization's publications amounted to "interference" in the country's "racial problems". It rejoined the organization in 1994 under the leadership of Nelson Mandela . One of

890-466: A field setting as opposed to a laboratory setting. In gastronomy , "in situ" refers to the art of cooking with the different resources that are available at the site of the event. Here a person is not going to the restaurant, but the restaurant comes to the person's home. In legal contexts, in situ is often used for its literal meaning. For example, in Hong Kong , in-situ land exchange refers to

979-552: A full member. As a result, the United States withdrew its funding, which had accounted for about 22% of UNESCO's budget. Israel also reacted to Palestine's admittance to UNESCO by freezing Israeli payments to UNESCO and imposing sanctions on the Palestinian Authority , stating that Palestine's admittance would be detrimental "to potential peace talks". Two years after stopping payment of its dues to UNESCO,

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1068-547: A global movement in 1990 to provide basic education for all children, youths and adults. In 2000, World Education Forum in Dakar , Senegal, led member governments to commit for achieving basic education for all in 2015. The World Declaration on Higher Education was adopted by UNESCO's World Conference on Higher Education on 9 October 1998, with the aim of setting global standards on the ideals and accessibility of higher education . UNESCO's early activities in culture included

1157-402: A mechanism where landowners can swap their existing or expired leases with new grants for the same land parcel. This approach facilitates redevelopment while preserving the property's original location. In the field of recognition of governments under public international law the term in situ is used to distinguish between an exiled government and a government with effective control over

1246-634: A member as well. The Constitution was amended in November 1954 when the General Conference resolved that members of the executive board would be representatives of the governments of the States of which they are nationals and would not, as before, act in their personal capacity. This change in governance distinguished UNESCO from its predecessor, the ICIC, in how member states would work together in

1335-1092: A methodological framework that emphasizes the relationship between artistic works and their environmental or cultural settings. In aerospace structural health monitoring , in situ inspection denotes diagnostic methodologies that evaluate components within their operational environments—eliminating the need for disassembly or service interruption. The nondestructive testing (NDT) techniques employed for in situ damage detection include: infrared thermography , which measures thermal emissions to identify structural anomalies; speckle shearing interferometry (also known as shearography ), which analyzes surface deformation patterns; and ultrasonic testing , which uses sound wave propagation to detect internal defects in composite materials . Each technique exhibits characteristic operational constraints. Infrared thermography exhibits reduced effectiveness on low- emissivity materials, shearography requires carefully controlled environmental conditions, and ultrasonic testing protocols can be time-intensive for large structural components. Nevertheless,

1424-410: A physical storage facility such as hay. In electrochemistry , the phrase in situ refers to performing electrochemical experiments under operating conditions of the electrochemical cell, i.e., under potential control. This is opposed to doing ex situ experiments that are performed under the absence of potential control. Potential control preserves the electrochemical environment essential to maintain

1513-444: A platform for the dialogue between cultures and provide a forum for international debate". Since March 2006 it has been available free online, with limited printed issues. Its articles express the opinions of the authors which are not necessarily the opinions of UNESCO. There was a hiatus in publishing between 2012 and 2017. In 1950, UNESCO initiated the quarterly review Impact of Science on Society (also known as Impact ) to discuss

1602-531: A presenter looking at tips on a smart glass to reduce their speaking rate during a speech, or technicians receiving online and stepwise instructions for repairing an engine. An algorithm is said to be an in situ algorithm, or in-place algorithm , if the extra amount of memory required to execute the algorithm is O(1) , that is, does not exceed a constant no matter how large the input. Typically such an algorithm operates on data objects directly in place rather than making copies of them. For example, heapsort

1691-439: A project site. In this case, it is used to designate the state of an unmodified sample taken from a given stockpile. Site construction usually involves grading the existing soil surface so that material is "cut" out of one area and "filled" in another area creating a flat pad on an existing slope. The term "in situ" distinguishes soil still in its existing condition from soil modified (filled) during construction. The differences in

1780-484: A type of malignant skin cancer . In this stage, the cancerous melanocytes —the pigment-producing cells that give skin its color—are confined to the epidermis , the outermost layer of the skin . The melanoma has not yet penetrated into the deeper dermal layers of the skin or metastasized to other parts of the body. Beyond oncology, in situ applies to fields that require maintenance of natural anatomical or physiological positions. In orthopedic surgery , for example,

1869-467: A versatile platform for storage and release of therapeutic proteins. It has tremendous applications for cancer treatment, vaccination, diagnosis, regenerative medicine, and therapies for loss-of-function genetic diseases. In chemical engineering, in situ often refers to industrial plant "operations or procedures that are performed in place." For example, aged catalysts in industrial reactors may be regenerated in place ( in situ ) without being removed from

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1958-409: Is an in situ sorting algorithm, which sorts the elements of an array in place. Quicksort is an in situ sorting algorithm, but in the worst case it requires linear space on the call stack (this can be reduced to log space). Merge sort is generally not written as an in situ algorithm. AJAX partial page data updates is another example of in situ in a Web UI/UX context. Web 2.0 included AJAX and

2047-499: Is another example of an early major UNESCO project in the field of natural sciences. In 1968, UNESCO organized the first intergovernmental conference aimed at reconciling the environment and development, a problem that continues to be addressed in the field of sustainable development . The main outcome of the 1968 conference was the creation of UNESCO's Man and the Biosphere Programme . UNESCO has been credited with

2136-578: Is ascribed as an adaptation to common regional environmental changes during the late Pleistocene. It is well established that the late Pleistocene in northern Cameroon and the surrounding area was highly variable climatically. Particularly during the Last Glacial Maximum , refuge occupations by people would have been short-term and highly variable based on rapid, localized changes. Similar lithic assemblages and strategies as those found at Shum Laka have been delineated at other rockshelter sites in

2225-413: Is commonly applied in the context of carcinoma in situ (CIS), a term describing abnormal cells confined to their original location without invasion of surrounding tissue. CIS is a critical term in early cancer diagnosis , as it signifies a non-invasive stage, allowing for more targeted interventions before potential progression. Similarly, melanoma in situ is an early, localized form of melanoma ,

2314-454: Is corrupted and manipulated by Israel's enemies... we are not going to be a member of an organisation that deliberately acts against us". 2023 saw Russia excluded from the executive committee for the first time, after failing to get sufficient votes. The United States stated its intent to rejoin UNESCO in 2023, 5 years after leaving, and to pay its $ 600 million in back dues. The United States

2403-461: Is governed by the General Conference composed of member states and associate members, which meets biannually to set the agency's programs and budget. It also elects members of the executive board, which manages UNESCO's work, and appoints every four years a Director-General, who serves as UNESCO's chief administrator. UNESCO and its mandate for international cooperation can be traced back to a League of Nations resolution on 21 September 1921, to elect

2492-421: Is not in situ (see wh-movement ): "What did John buy?" In literature in situ is used to describe a condition. The Rosetta Stone , for example, was originally erected in a courtyard, for public viewing. Most pictures of the famous stone are not in situ pictures of it erected, as it would have been originally. The stone was uncovered as part of building material, within a wall. Its in situ condition today

2581-575: Is that it is erected, vertically, on public display at the British Museum in London, England. The term in situ in the medical context is part of a group of two-word Latin expressions, including in vitro , in vivo , and ex vivo . Similar to abbreviations, these terms support the concise transfer of essential information in medical communication. In situ , specifically, is among the most widely used and versatile Latin terms in medical discourse in modern times. In oncology , in situ

2670-844: The Acropolis of Athens (Greece). The organization's work on heritage led to the adoption, in 1972, of the Convention concerning the Protection of the World Cultural and Natural Heritage. In 1976, the World Heritage Committee was established and the first sites were included on the World Heritage List in 1978. Since then important legal instruments on cultural heritage and diversity have been adopted by UNESCO member states in 2003 (Convention for

2759-599: The Earth sciences , in situ typically describes natural material or processes prior to transport. For example, in situ is used in relation to the distinction between weathering and erosion , the difference being that erosion requires a transport medium (such as wind , ice , or water ), whereas weathering occurs in situ . Geochemical processes are also often described as occurring to material in situ . In oceanography and ocean sciences , in situ generally refers to observational methods made by obtaining direct samples of

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2848-781: The International Campaign to Save the Monuments of Nubia , launched in 1960. The purpose of the campaign was to move the Great Temple of Abu Simbel to keep it from being swamped by the Nile after the construction of the Aswan Dam . During the 20-year campaign, 22 monuments and architectural complexes were relocated. This was the first and largest in a series of campaigns including Mohenjo-daro (Pakistan), Fes (Morocco), Kathmandu (Nepal), Borobudur (Indonesia) and

2937-1002: The Jōmon Venus of Japan, the Mona Lisa of France, the Gebel el-Arak Knife of Egypt , The Ninth Wave of Russia, the Seated Woman of Çatalhöyük of Turkey, the David (Michelangelo) of Italy, the Mathura Herakles of India, the Manunggul Jar of the Philippines, the Crown of Baekje of South Korea, The Hay Wain of the United Kingdom and the Benin Bronzes of Nigeria. The second proposed list will focus on

3026-491: The United Nations member states (except Israel and Liechtenstein ), as well as Cook Islands , Niue and Palestine . The United States and Israel left UNESCO on 31 December 2018, but the United States rejoined in 2023. As of June 2023 , there have been 11 Directors-General of UNESCO since its inception – nine men and two women. The 11 Directors-General of UNESCO have come from six regions within

3115-507: The in place storage of a product, usually a natural resource. More generally, it refers to any situation where there is no out-of-pocket cost to store the product so that the only storage cost is the opportunity cost of waiting longer to get your money when the product is eventually sold. Examples of in situ storage would be oil and gas wells, all types of mineral and gem mines, stone quarries, timber that has reached an age where it could be harvested, and agricultural products that do not need

3204-1131: The non-governmental , intergovernmental and private sector . Headquartered in Paris , France, UNESCO has 53 regional field offices and 199 national commissions. UNESCO was founded in 1945 as the successor to the League of Nations ' International Committee on Intellectual Cooperation . UNESCO's founding mission, which was shaped by the events of World War II , is to advance peace , sustainable development and human rights by facilitating collaboration and dialogue among nations. It pursues this objective through five major programme areas: education, natural sciences , social / human sciences , culture and communication/information. UNESCO sponsors projects that improve literacy , provide technical training and education, advance science, protect independent media and press freedom , preserve regional and cultural history , and promote cultural diversity . The organization prominently helps establish and secure World Heritage Sites of cultural and natural importance. UNESCO

3293-838: The Directors-General of UNESCO since its establishment in 1946 is as follows: This is the list of the sessions of the UNESCO General Conference held since 1946: Ahmet Altay Cengizer Biennial elections are held, with 58 elected representatives holding office for four years. [REDACTED]   Finland [REDACTED]   Portugal [REDACTED]   Turkey [REDACTED]   Albania [REDACTED]   Belarus [REDACTED]   Bulgaria [REDACTED]   Cuba [REDACTED]   Grenada [REDACTED]   Jamaica [REDACTED]   Saint Lucia [REDACTED]   Saint Vincent and

3382-609: The Earth's crust. There are several varieties of in situ techniques, but the ones which work best in the oil sands use heat (steam). UNESCO The United Nations Educational, Scientific, and Cultural Organization ( UNESCO ; pronounced / j uː ˈ n ɛ s k oʊ / ) is a specialized agency of the United Nations (UN) with the aim of promoting world peace and security through international cooperation in education, arts, sciences and culture. It has 194 member states and 12 associate members, as well as partners in

3471-421: The Holocene, Shum Laka was located within an ecotone . Ceramic assemblages recovered from the site date from 7000 BP onward and are indicative of continued longer occupation by semi-agricultural populations. Additionally, these ceramic assemblages indicate the use of the rockshelter by different groups of peoples and that these people interacted with various western African states. The lithic assemblage in some of

3560-644: The League of Nations essentially centred on Western Europe ). The International Institute for Intellectual Cooperation (IIIC) was then created in Paris in September 1924, to act as the executing agency for the ICIC. However, the onset of World War II largely interrupted the work of these predecessor organizations. As for private initiatives, the International Bureau of Education (IBE) began to work as

3649-836: The Safeguarding of the Intangible Cultural Heritage ) and 2005 ( Convention on the Protection and Promotion of the Diversity of Cultural Expressions ). An intergovernmental meeting of UNESCO in Paris in December 1951 led to the creation of the European Council for Nuclear Research , which was responsible for establishing the European Organization for Nuclear Research (CERN) later on, in 1954. Arid Zone programming, 1948–1966,

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3738-548: The United States and Israel lost UNESCO voting rights in 2013 without losing the right to be elected; thus, the United States was elected as a member of the executive board for the period 2016–19. In 2019, Israel left UNESCO after 69 years of membership, with Israel's ambassador to the UN Danny Danon writing: "UNESCO is the body that continually rewrites history, including by erasing the Jewish connection to Jerusalem... it

3827-467: The area dating to the same period. Geneticists sequenced genome-wide DNA data from four Shum Laka foragers buried at the site of Shum Laka in Cameroon between 8000–3000 years ago. One individual 2/SEII carried the deeply divergent haplogroup A00 found at low frequencies among some present-day Niger-Congo speakers, but the genome-wide ancestry profiles for all four individuals are very different from

3916-416: The bone and plant remains recovered demonstrated multiple occupations spanning from 30,000 BP to around 400 BP. Bone preservation from the early occupations is poor, with only a few surviving faunal remains and no bone tools. Later occupations depict common exploitation of medium-sized fauna from the forest. These remains include those from several gorillas and chimpanzees, and various artiodactyla . Based upon

4005-757: The commission, the Nobel Peace Prize laureate Seán MacBride ). The same year, UNESCO created the International Programme for the Development of Communication (IPDC), a multilateral forum designed to promote media development in developing countries. In 1993, UNESCO's General Conference endorsed the Windhoek Declaration on media independence and pluralism, which led the UN General Assembly to declare

4094-441: The computation to where data is located, rather than the other way like in traditional RDBMS systems where data is moved to computational space. This is also known as in-situ processing . In design and advertising the term typically means the superimposing of theoretical design elements onto photographs of real world locations. This is a pre-visualization tool to aid in illustrating a proof of concept. In physical geography and

4183-417: The concept of asynchronous requests to servers to replace a portion of a web page with new data, without reloading the entire page, as the early HTML model dictated. Arguably, all asynchronous data transfers or any background task is in situ as the normal state is normally unaware of background tasks, usually notified on completion by a callback mechanism. With big data , in situ data would mean bringing

4272-468: The confines of the Operating Room . In vitro was among the first attempts to qualitatively and quantitatively analyze natural occurrences in the lab. Eventually, the limitation of in vitro experimentation was that they were not conducted in natural environments. To compensate for this problem, in vivo experimentation allowed testing to occur in the original organism or environment. To bridge

4361-533: The date of its adoption, 3 May, as World Press Freedom Day . Since 1997, UNESCO has awarded the UNESCO / Guillermo Cano World Press Freedom Prize every 3 May. UNESCO admitted Palestine as a member in 2011. Laws passed in the United States after Palestine applied for UNESCO and WHO membership in April 1989 mean that the United States cannot contribute financially to any UN organization that accepts Palestine as

4450-599: The determination of individual identification, causes of death, and other forensic parameters. The concept of in situ in contemporary art emerged as a critical framework during the late 1960s and 1970s, designating artworks conceived and executed for specific spatial contexts. Such works incorporate the site's physical, historical, political, and sociological parameters as integral compositional elements. This methodology stands in contrast to autonomous artistic production, wherein works maintain independence from their eventual display locations. Theoretical discourse regarding

4539-546: The dichotomy of benefits associated with both methodologies, in situ experimentation allowed the controlled aspects of in vitro to become coalesced with the natural environmental compositions of in vivo experimentation. In conservation of genetic resources , " in situ conservation " (also "on-site conservation ") is the process of protecting an endangered plant or animal species in its natural habitat , as opposed to ex situ conservation (also "off-site conservation"). In chemistry, in situ typically means "in

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4628-489: The diffusion of national science bureaucracies. In the field of communication, the "free flow of ideas by word and image" has been in UNESCO's constitution since it was established, following the experience of the Second World War when control of information was a factor in indoctrinating populations for aggression. In the years immediately following World War II, efforts were concentrated on reconstruction and on

4717-473: The distinct preservation conditions in underwater environments, where diminished oxygen levels and temperature stability facilitate long-term artifact preservation. The extraction of artifacts from these submerged environments and subsequent exposure to atmospheric conditions typically accelerates deterioration processes, most notably in the oxidation of ferrous materials. In archaeological contexts involving burial sites, in situ documentation encompasses

4806-531: The double layer structure intact and the electron transfer reactions occurring at that particular potential in the electrode/electrolyte interphasial region. In situ can refer to where a clean up or remediation of a polluted site is performed using and stimulating the natural processes in the soil , contrary to ex situ where contaminated soil is excavated and cleaned elsewhere, off site. In transmission electron microscopy (TEM) and scanning transmission electron microscopy  (STEM), in situ refers to

4895-565: The early work of UNESCO in the education field was a pilot project on fundamental education in the Marbial Valley, Haiti, which was launched in 1947. Following this project one of expert missions to other countries, included a 1949 mission to Afghanistan. UNESCO recommended in 1948 that Member countries should make free primary education compulsory and universal. The World Conference on Education for All , in Jomtien , Thailand, started

4984-463: The history of modern humans , one close to the time of the migration giving rise to non-Africans , and one in the past several thousand years. Present-day West Africans and some East Africans , in addition to Central and Southern African hunter-gatherers , retain ancestry from the first phase, which is therefore still represented throughout the majority of human diversity in Africa today. This site

5073-540: The identification of needs for means of mass communication around the world. UNESCO started organizing training and education for journalists in the 1950s. In response to calls for a " New World Information and Communication Order " in the late 1970s, UNESCO established the International Commission for the Study of Communication Problems, which produced the 1980 MacBride report (named after the chair of

5162-529: The influence of science on society. The journal ceased publication in 1992. UNESCO also published Museum International Quarterly from the year 1948. UNESCO has official relations with 322 international non-governmental organizations (NGOs). Most of these are what UNESCO calls "operational"; a select few are "formal". The highest form of affiliation to UNESCO is "formal associate", and the 22 NGOs with formal associate (ASC) relations occupying offices at UNESCO are: The institutes are specialized departments of

5251-497: The late Pleistocene occupations at Shum Laka are unique in the presence of a quartz industry early than most other sites in the region. The presence of a microlithic quartz industry at Shum Laka, when combined with supporting evidence from other rockshelter and late Pleistocene sites in the Grasslands, is indicative of a more mobile population that exploited a variety of resources in the ecotonal landscape. This behavioral strategy

5340-517: The majority of West Africans today and instead are more similar to West- Central African hunter-gatherers . Despite the geographic proximity of Shum Laka to the hypothesized birthplace of Bantu languages and the temporal range of the samples bookending the initial Bantu expansion , these individuals are not representative of a Bantu source population. Phylogenetic model including Shum Laka features three major radiations within Africa: one phase early in

5429-457: The materials are cheaper, and the work is versatile and adaptable. Prefabricated techniques are usually much quicker, therefore saving money on labour costs, but factory-made parts can be expensive. They are also inflexible, and must often be designed on a grid, with all details fully calculated in advance. Finished units may require special handling due to excessive dimensions. The phrase may also refer to those assets which are present at or near

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5518-775: The necessity for an international organization was expressed in the Moscow Declaration, agreed upon by China , the United Kingdom, the United States and the USSR. This was followed by the Dumbarton Oaks Conference proposals of 9 October 1944. Upon the proposal of CAME and in accordance with the recommendations of the United Nations Conference on International Organization (UNCIO), held in San Francisco from April to June 1945,

5607-838: The observation of materials as they are exposed to external stimuli within the microscope, under conditions that mimic their natural environments. This enables real-time observation of material behavior at the nanoscale . External stimuli in in situ TEM/STEM experiments include mechanical loading and pressure, temperature changes, electrical currents ( biasing ), radiation , and environmental factors—such as exposure to gas, liquid, and magnetic field —or any combination of these. These conditions allow researchers to study atomic-level processes such as phase transformations , chemical reactions, or mechanical deformations , providing insights into material behavior and properties essential for advancements in materials science . In psychology experiments , in situ typically refers to those experiments done in

5696-555: The observation of substances and reactions under native conditions, facilitating the documentation of dynamic processes. In situ applications extend to various applied sciences as well. Aerospace industry implements on-site inspection protocols and monitoring systems for operational evaluation without system interruption. In medical terminology, particularly oncology , in situ designates early-stage cancers that remain confined to their point of origin. This diagnostic classification—indicating no invasion of adjacent tissues—serves as

5785-405: The ocean state, such as that obtained by shipboard surveying using a lowered CTD rosette that directly measure ocean salinity , temperature , pressure and other biogeochemical quantities like dissolved oxygen. Historically a reversing thermometer would be used to record the ocean temperature at a particular depth and a Niskin or Nansen bottle used to capture and bring water samples back to

5874-424: The ocean surface for further analysis of the physical, chemical or biological composition. In the atmospheric sciences , in situ refers to obtained through direct contact with the respective subject, such as a radiosonde measuring a parcel of air or an anemometer measuring wind, as opposed to remote sensing such as weather radar or satellites . In economics, in situ is used when referring to

5963-401: The orbital distance they are currently observed rather than to have migrated from a different orbit (referred to as ex situ formation ). In biology and biomedical engineering , in situ means to examine the phenomenon exactly in place where it occurs (i.e., without moving it to some special medium). In the case of observations or photographs of living animals, it means that the organism

6052-582: The organization that support UNESCO's programme, providing specialized support for cluster and national offices. UNESCO awards 26 prizes in education, natural sciences, social and human sciences, culture, communication and information as well as peace: International Days observed at UNESCO are provided in the table below: As of July 2023 , UNESCO has 194 member states and 12 associate members. Some members are not independent states and some members have additional National Organizing Committees from some of their dependent territories . UNESCO state parties are

6141-561: The organization's fields of competence. As member states worked together over time to realize UNESCO's mandate, political and historical factors have shaped the organization's operations in particular during the Cold War , the decolonization process, and the dissolution of the Soviet Union . Among the major achievements of the organization is its work against racism, for example through influential statements on race starting with

6230-476: The organization: West Europe (5), Central America (1), North America (2), West Africa (1), East Asia (1), and East Europe (1). To date, there has been no elected Director-General from the remaining ten regions within UNESCO: Southeast Asia, South Asia, Central and North Asia, Middle East, North Africa, East Africa, Central Africa, South Africa, Australia-Oceania, and South America. The list of

6319-484: The reaction mixture." There are numerous situations in which chemical intermediates are synthesized in situ in various processes. This may be done because the species is unstable, and cannot be isolated, or simply out of convenience. Examples of the former include the Corey-Chaykovsky reagent and adrenochrome . In biomedical engineering, protein nanogels made by the in situ polymerization method provide

6408-469: The reactors. In architecture and building , in situ refers to construction which is carried out at the building site using raw materials - as opposed to prefabricated construction, in which building components are made in a factory and then transported to the building site for assembly. For example, concrete slabs may be cast in situ (also "cast-in-place") or prefabricated . In situ techniques are often more labour-intensive, and take longer, but

6497-414: The relevant artworks, particularly through the writings and practices of French conceptual artist and sculptor Daniel Buren , emphasized the dialectical relationship between artistic intervention and environmental context. The site-specific installations of Christo and Jeanne-Claude serve as notable examples of applying in situ principles in art. Their architectural interventions, characterized by

6586-527: The site were determined to have had their greatest impact laterally, and thus not damaged contextual integrity between cultural occupations. The importance of geoarchaeological investigations conducted at Shum Laka includes the construction of a reliable cultural chronology of the area, and an emphasis on the need to critically evaluate other rockshelter sites in the region. At Shum Laka, over 1,000 ceramic sherds, nearly 500,000 pieces of lithic materials, and 18 human skeletons were recovered. Radiocarbon dating of

6675-399: The small amounts of materials found in individual strata, it is proposed that the site was occupied for numerous short periods of time. Macrobotanical remains recovered were originally claimed to include both savanna grasses and forest trees, but the source wrongly cited a montane forest herb, Hypericum, as a savanna grass. These were interpreted as meaning that for a period of occupation during

6764-518: The soil properties for supporting building loads, accepting underground utilities, and infiltrating water persist indefinitely. A use of the term in-situ that appears in Computer Science focuses primarily on the use of technology and user interfaces to provide continuous access to situationally relevant information in various locations and contexts. Examples include athletes viewing biometric data on smartwatches to improve their performance,

6853-535: The spatial distribution and typological characteristics of unexcavated in situ deposits, thereby informing subsequent excavation plans. The Convention on the Protection of the Underwater Cultural Heritage establishes mandatory principles for signatory states regarding underwater shipwrecks . Among its directives is the stipulation that in situ preservation constitutes the preferred methodological approach. This protocol derives from

6942-423: The spatial relationships and environmental conditions of artifacts at excavation sites, enabling more precise historical analysis. In art theory and practice, the in situ principle guides both creation and exhibition. Site-specific artworks , such as environmental sculptures or architectural installations, demonstrate deliberate integration with their designated locations. This contextual placement establishes

7031-600: The systematic integration of these complementary methodologies substantially enhances overall diagnostic capabilities. An additional approach involves the use of alternating current (AC) and direct current (DC) sensor arrays in real-time monitoring applications, facilitating in situ detection of structural degradation phenomena—including matrix discontinuities, interlaminar delaminations , and fiber fracture mechanisms—through quantitative analysis of electrical resistance and capacitance variations within composite laminate configurations. In archaeological methodology,

7120-481: The systematic recording and cataloging of human remains in their original depositional positions, often within complex matrices that incorporate sediments , clothing, and other associated artifacts. Mass grave excavations exemplify the methodological challenges of maintaining in situ preservation, as the presence of multiple individuals, sometimes numbering in the hundreds, necessitates comprehensive documentation of spatial relationships and contextual elements prior to

7209-706: The systematic wrapping of built structures and landscape elements in textile materials, effected temporary spatial reconfigurations that altered public perception of established environments, as seen in The Pont Neuf Wrapped (1985) and Wrapped Reichstag (1995). The approach to in situ practice underwent further development through the land art movement, wherein practitioners such as Robert Smithson and Michael Heizer integrated their works directly into terrestrial environments, forging inextricable relationships between artistic intervention and geographical context. Within contemporary aesthetic discourse,

7298-1327: The term in situ designates artifacts and other materials that maintain their original depositional context, undisturbed since their initial deposition. The systematic documentation of spatial coordinates , stratigraphic position , and associated matrices of in situ materials enables the reconstruction of historical processes and cultural practices. While artifacts frequently require extraction for analytical purposes, archaeological features —including hearths , postholes , and architectural foundations —necessitate comprehensive in situ documentation to preserve contextual data during stratigraphic excavation . Documentation protocols encompass multiple recording methodologies: detailed field notation, scaled technical drawings , cartographic representation, and high-resolution photographic documentation. Contemporary archaeological practice incorporates advanced digital technologies, including 3D laser scanning , photogrammetry , unmanned aerial vehicles , and Geographic Information Systems (GIS), to capture complex spatial relationships. Materials recovered from secondary contexts ( ex situ ), including those displaced through non-professional excavation activities, demonstrate diminished interpretive value; however, such assemblages may provide diagnostic indicators regarding

7387-547: The term in situ has evolved into a theoretical construct, denoting artistic methodologies predicated on the essential unity of work and site. A fraction of the globular star clusters in the Milky Way Galaxy , as well as those in other massive galaxies, might have formed in situ . The rest might have been accreted from now-defunct dwarf galaxies. In astronomy, in situ also refers to in situ planet formation , in which planets are hypothesized to have formed at

7476-630: The term describes procedures where orthopedic plates such as bone screws are placed without altering the original alignment of the bone, as in "[the patient] was treated operatively with an in situ cannulated hip screw fixation". In situ leaching or in situ recovery refers to the mining technique of injecting lixiviant underground to dissolve ore and bringing the pregnant leach solution to surface for extraction. Commonly used in uranium mining but has also been used for copper mining. In situ refers to recovery techniques which apply heat or solvents to heavy crude oil or bitumen reservoirs beneath

7565-516: The territory, i.e. the government in situ . In linguistics , specifically syntax , an element may be said to be in situ if it is pronounced in the position where it is interpreted. For example, questions in languages such as Chinese have in situ wh-elements, with structures comparable to "John bought what?" with what in the same position in the sentence as the grammatical object would be in its affirmative counterpart (for example, "John bought bread"). An example of an English wh-element that

7654-515: The world's living species, such as the komodo dragon of Indonesia, the panda of China, the bald eagle of North American countries, the aye-aye of Madagascar, the Asiatic lion of India, the kākāpō of New Zealand, and the mountain tapir of Colombia, Ecuador and Peru. UNESCO and its specialized institutions issue a number of magazines. Created in 1945, The UNESCO Courier magazine states its mission to "promote UNESCO's ideals, maintain

7743-1248: Was added to the UNESCO World Heritage Tentative List on February 2, 2018 in the Cultural category. In situ In situ is a Latin phrase meaning "in place" or "on site", derived from in ("in") and situ ( ablative of situs , "place"). The term refers to the examination or preservation of phenomena within their original place or context. This methodological approach, used across diverse disciplines, maintains contextual integrity essential for accurate analysis. Conversely, ex situ methods examine subjects outside their original context. The natural sciences frequently implement in situ methodologies. Geological studies employ field analysis of soil composition and rock formations , while environmental science relies on direct ecosystem monitoring to obtain accurate environmental data. Biological field research examines organisms in their natural habitats , revealing behavioral patterns and ecological interactions that laboratory settings cannot replicate. In chemistry and experimental physics , in situ techniques enable

7832-414: Was observed (and photographed) in the wild, exactly as it was found and exactly where it was found. This means it was not taken out of the area. The organism had not been moved to another (perhaps more convenient) location such as an aquarium. This phrase in situ when used in laboratory science such as cell science can mean something intermediate between in vivo and in vitro . For example, examining

7921-594: Was readmitted by the UNESCO General Conference that July. UNESCO implements its activities through five programme areas: education, natural sciences, social and human sciences, culture, and communication and information. UNESCO does not accredit institutions of higher learning. The UNESCO transparency portal has been designed to enable public access to information regarding the Organization's activities, such as its aggregate budget for

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