You're using an outdated browser. Please upgrade to a modern browser for the best experience.
Subject:
All Disciplines Arts & Humanities Biology & Life Sciences Business & Economics Chemistry & Materials Science Computer Science & Mathematics Engineering Environmental & Earth Sciences Medicine & Pharmacology Physical Sciences Public Health & Healthcare Social Sciences
Sort by:
Most Viewed Latest Alphabetical (A-Z) Alphabetical (Z-A)
Filter:
All Topic Review Biography Peer Reviewed Entry Video Entry
Topic Review
Permafrost Landscape in the Northeast of Eurasia
The theoretical basis of permafrost landscape studies originated in the developments of Soviet physical geographers and landscape scientists. Traditional classifications, mapping techniques, and applied interpretations in landscape studies have not previously used permafrost criteria. Therefore, researchers of permafrost landscapes have used them, eventually adapting them to the conditions of permafrost based on the goals and objectives of the research.
  • 1.4K
  • 02 Apr 2022
Topic Review
Lagosuchus
Lagosuchus is an extinct genus of avemetatarsalian archosaur from the Late Triassic of Argentina . The type species of Lagosuchus, Lagosuchus talampayensis, is based on a small partial skeleton recovered from the early Carnian-age Chañares Formation. The holotype skeleton of L. talampayensis is fairly fragmentary, but it does possess some traits suggesting that Lagosuchus was a probable dinosauriform, closely related to dinosaurs. A second potential species of Lagosuchus, L. lilloensis, is based on an assortment of slightly larger and more well-preserved fossils. These larger specimens have been considered much more diagnostic and informative than the original small L. talampayensis skeleton. As a result, some paleontologists have placed the larger specimens into a new genus, Marasuchus. Marasuchus is generally considered one of the more complete early dinosauriforms, useful for estimating ancestral traits for the origin of dinosaurs. This would also render Lagosuchus a nomen dubium, simply a name referring to a fossil which is too fragmentary to have a formal genus. However, other paleontologists support the argument that Lagosuchus is a valid genus, and that Marasuchus is a junior synonym of it.
  • 1.3K
  • 02 Nov 2022
Topic Review
GIS and Environmental Governance
Geographic information system (GIS) is a commonly used tool for environmental management, modelling and planning. As simply defined by Michael Goodchild, GIS is as ‘a computer system for handling geographic information in a digital form’. In recent years it has played an integral role in participatory, collaborative and open data philosophies. Social and technological evolutions have elevated ‘digital’ and ‘environmental’ agendas to the forefront of public policy, the global media and the private sector. Government departments routinely use digital spatial platforms to plan and model proposed changes to road networks, building design, greenbelt land, utility provision, crime prevention, energy production, waste management and security. Non-profit organizations also incorporate geospatial and web-mapping approaches into political campaigns to lobby governments, to protest against socially or environmentally harmful companies, and to generate public support. Private business, whether in land management, resource extraction, retail, manufacturing or social media for example, also incorporate GIS into overall profit-making strategies.
  • 1.3K
  • 15 Nov 2022
Topic Review
Automatic Identification of Addresses
Address matching continues to play a central role at various levels, through geocoding and data integration from different sources, with a view to promote activities such as urban planning, location-based services, and the construction of databases like those used in census operations. Closely associated to address matching is the task of address parsing or address segmentation, which consists of decomposing an address into its different components, such as a street name or a postal code. However, these tasks continue to face several challenges, such as non-standard or incomplete address records or addresses written in more complex languages.
  • 1.3K
  • 10 Jan 2022
Topic Review
Tracing the Impact Pathways of COVID-19 on Tourism
The COVID-19 epidemic has caused unprecedented impacts on the travel and tourism industry. Most prominently among them is the development of an integrated management system that improves the coordination of the response of local government to crisis and that better orchestrates the combined efforts and integration of non-governmental organizations. The challenges of the pandemic require similar measures to tackling sustainability challenges by fostering resilience, adaptivity, flexibility, collaboration, and co-creation.Impacts and possible mitigation strategies against COVID-19 need to be identified for national strategy development to make countries more resilient to such a crisis in the future, even if each country faces challenges from the pandemic that are unique
  • 1.3K
  • 30 May 2022
Topic Review
Efficient Approximate Analytics of Georeferenced Big Data
The unprecedented availability of sensor networks and GPS-enabled devices has caused the accumulation of voluminous georeferenced data streams. These data streams offer an opportunity to derive valuable insights and facilitate decision making for urban planning.
  • 1.2K
  • 02 Nov 2023
Topic Review
Using Remote Sensing to Detect Suspended Sediment
Glacier-fed hydrological systems in high latitude regions experience high seasonal variation in meltwater runoff. The peak in runoff usually coincides with the highest air temperatures which drive meltwater production. This process is often accompanied by the release of sediments from within the glacier system that are transported and suspended in high concentrations as they reach the proglacial realm. Sediment-laden meltwater is later transported to the marine environment and is expressed on the surface of fjords and coastal waters as sediment plumes. Direct monitoring of these processes requires complex and time-intensive fieldwork, meaning studies of these processes are rare. 
  • 1.2K
  • 13 Jul 2022
Topic Review
Sarahsaurus
Sarahsaurus is a genus of basal sauropodomorph dinosaur which lived during the Early Jurassic period in what is now northeastern Arizona, United States.
  • 1.2K
  • 23 Nov 2022
Topic Review
Mediterranean Drought: Regional Exceptional Datasets
To define such drought events and their characteristics, separate analyses based on three drought indices were performed at 12-month timescale: the Standardized Precipitation Index (SPI), the Standardized Precipitation Evapotranspiration Index (SPEI), and the Reconnaissance Drought Index (RDI). A multivariate combined drought index (DXI) was developed by merging the previous three indices for more understanding of droughts’ features at the country and subregional levels. Principal component analysis (PCA) was used to identify five different drought subregions based on DXI-12 values for 312 Mediterranean stations and a new special score was defined to classify the multi-subregional exceptional drought events across the Mediterranean Basin (MED). The results indicated that extensive drought events occurred more frequently since the late 1990s, showing several drought hotspots in the last decades in the southeastern Mediterranean and northwest Africa. In addition, the results showed that the most severe events were more detected when more than single drought index was used. 
  • 1.2K
  • 11 Aug 2021
Topic Review
Geocoding
Geocoding is the process of taking input text, such as an address or the name of a place, and returning a latitude/longitude location on the Earth's surface for that place. Reverse geocoding, on the other hand, converts geographic coordinates to a description of a location, usually the name of a place or an addressable location. Geocoding relies on a computer representation of address points, the street / road network, together with postal and administrative boundaries. The geographic coordinates representing locations often vary greatly in positional accuracy. Examples include building centroids, land parcel centroids, interpolated locations based on thoroughfare ranges, street segments centroids, postal code centroids (e.g. ZIP codes, CEDEX), and Administrative division Centroids.
  • 1.2K
  • 10 Nov 2022
Topic Review
Governance Framework for the Sea
The United Nations, in the context of its founding principles and in order to contribute to the preservation of peace and justice in all the countries, confirmed at the Geneva Conferences in 1958 and 1960 that there should be an acceptable convention for the law of the sea. The complete version of the United Nations Convention on the Law of the Sea (UNCLOS) was presented in 1982 in Montego Bay, Jamaica (https://treaties.un.org/Pages/Treaties.aspx?id=21&subid=0&lang=en&clang=_en (accessed on 8 May 2022)), entered into force in 1994, and is today the world’s most recognized maritime law regime. The central idea of the UNCLOS convention is that maritime problems are interconnected and should be tackled as a whole. The provisions of the UN convention apply to all areas of marine affairs, including the organization and development of productive activities and the emergence of marine entrepreneurship.
  • 1.1K
  • 27 May 2022
Topic Review
Cleveland-Lloyd Dinosaur Quarry
The Cleveland-Lloyd Dinosaur Quarry, well known for containing the densest concentration of Jurassic dinosaur fossils ever found, is a paleontological site located near Cleveland, Utah, in the San Rafael Swell, a part of the geological layers known as the Morrison Formation. Well over 15,000 bones have been excavated from this Jurassic excavation site and there are many thousands more awaiting excavation and study. It was designated a National Natural Landmark in October 1965. All of these bones, belonging to different species, are found disarticulated and indistinctly mixed together. It has been hypothesised that this strong concentration of mixed fossilised bones is due to a "predator trap", but any kind of definitive scientific consensus hasn't been reached yet and debates still continue to the present day.
  • 1.1K
  • 17 Oct 2022
Topic Review
Chiapas Highlands
The Chiapas highlands or the central highlands of Chiapas (Spanish: Los Altos de Chiapas), is a geographic, sociocultural and administrative region located in Chiapas, the southernmost state of Mexico.
  • 1.1K
  • 02 Nov 2022
Topic Review
Wind Models
Wind forecasts are widely spread because of the growth in wind power, but also because there are other applications to consider, such as the long-term scenario forecasts regarding the effects of global warming. Overall, there have been big developments in global circulation models (GCM) that inform future scenarios at the large scale, but wind forecast at a local scale is a problem that has not totally been solved.
  • 1.1K
  • 26 Mar 2021
Topic Review
Climate Change Impact Urban Transportation Resilience
Global warming, sea-level rise, and rapid urbanization all increase the risk of compound extreme weather events, presenting challenges for the operation of urban-related infrastructure, including transportation infrastructure. In this context, some questions become important.
  • 1.1K
  • 16 May 2022
Topic Review
Devil's Garden (Grand Staircase-Escalante National Monument)
The Devil's Garden of the Grand Staircase-Escalante National Monument (GSENM) in south central Utah, the United States, is a protected area featuring hoodoos, natural arches and other sandstone formations. The United States Geological Survey (USGS) designated the name Devils Garden—without an apostrophe according to USGS naming conventions—on December 31, 1979. The area is also known as the Devils Garden Outstanding Natural Area within the National Landscape Conservation System. The formations in the Devils Garden were created, and continue to be shaped, by various weathering and erosional processes. These natural processes have been shaping sandstone layers formed more than 166 million years ago during the Jurassic period's Middle epoch. The Bureau of Land Management (BLM) administers the Devils Garden and the entire GSENM which is the first national monument assigned to the BLM.
  • 1.0K
  • 18 Oct 2022
Topic Review Peer Reviewed
Cross-Border Territorial Development through Geographical Indications: Gargano (Italy) and Dibër (Albania)
In a globalized context, characterized by dominant trends towards the homogenization of food products and taste, local and niche productions play a vital role in creating effective strategies of territorial development. Albanian food heritage is definitely one of the most various of the Western Balkans. The Ottoman domination and the Mediterranean position just in front of Italy led to an incredible mix of cultures and traditions. As Albania is a candidate to join the European Union, it has a stronger opportunity of protecting its excellent-quality food products with PDO and PGI marks. Moreover, Albania’s territory shares fundamental features with Gargano lakes, especially with relation to the county of Dibër, where Ulez and Shkopet lakes are located. Both the areas’ traditional food products are and can be an important factor of sustainable and participatory development, and the present contribution aims at exploring possible paths of territorial development at a cross-border level, in the framework of a sort of “dialogue” between the two regions through Geographical Indications (GIs). 
  • 1.0K
  • 01 Dec 2022
Topic Review Peer Reviewed
Two Geophysical Technologies Used in Archaeological Research Simplified and Explained
The geophysical techniques ground penetrating radar (GPR) and electrical resistivity tomography (ERT) are commonly used data collection methodologies in numerous disciplines, including archaeology. Many researchers are now, or will be in the future, associated with projects that use these geophysical techniques, but who are not well versed in the instrumentation, its function, related terminology, data interpretation, and outcomes. This entry outlines the general approach and background for completing this type of research, dissects the methodology from a completed geoarchaeological project that uses both GPR and ERT, and provides concise definitions and explanations for all facets of the methodology. Based on this methodology, 21 terms or concepts related to GPR are explained in detail, as are 26 terms or concepts related to ERT, and visual representations of some of the terms and concepts are further illuminated via 11 figures. There are also 133 references linked to the various concepts and terms presented in this entry.
  • 986
  • 16 Sep 2025
Topic Review
Zonguldak basin
The Zonguldak basin of North Western Turkey has been mined for coal since the late 1800s. The basin takes its name after Zonguldak, Turkey, and is approximately 41° N. The Zonguldak basin is the only basin in Turkey with minable coal deposits. Geographically, the Zonguldak is roughly elliptical in shape with its long axis oriented roughly SW – NE, and is adjacent to the Black Sea. Three main regions have been recognized in the Zonguldak basin. These are the Armutcuk, the Zonguldak, and the Amasra from west to east respectively.
  • 965
  • 25 May 2022
Topic Review
Salt Lake, Hawaii
Salt Lake is a neighborhood of Honolulu, Hawaii on the island of O‘ahu. The area is also known as Āliamanu after a nearby crater, although Salt Lake itself is in a crater called Ālia pa‘akai — meaning "salt pond" in the Hawaiian language. The Salt Lake community was developed in the 1960s during a construction boom, providing residents with an expansive view of downtown Honolulu and the sugarcane plantations of the central plain of O‘ahu. It is a community of high-rise condominiums, mid-rise town-dwellings, and houses snaking around the remnants of a now freshwater lake. The U.S. Postal Code for Salt Lake is 96818. Salt Lake is a part of the 15th District of the Hawaii Senate, currently represented by State Senator Glenn Wakai and the 32nd District of the Hawaii House of Representatives, currently represented by Linda Ichiyama. It is also a part of Council District VII of the City and County of Honolulu, currently represented by Radiant Cordero.
  • 948
  • 28 Oct 2022
  • Page
  • of
  • 4
Academic Video Service