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Topic Review
Water Stress and Water Footprint
Physical water stress and scarcity are often used interchangeably, or the exact nature of the underlying data is not clearly defined or justified (e.g., water use versus consumption versus withdrawal). A number of authors have noted that there is no widely accepted definition for physical water stress and scarcity.   Comparing different definitions of water stress and scarcity, they seem to be converging on the definition given by the CEO Water Mandate (A NGO affiliated with the United Nations), who defines water scarcity as lack of physical abundance of freshwater resources without considering whether water is suitable for use, and water stress as lack of ability to meet human and ecological demand for freshwater, in terms of water quantity and quality and accessibility to water.
  • 1.4K
  • 01 Feb 2022
Topic Review
Disinfection Byproducts
Disinfection byproducts (DBPs) are formed by the action of oxidant-disinfectant chemicals, mainly chlorine derivatives (chlorine, hypochlorous acid, chloramines, etc.), that react with natural organic matter (NOM), mainly humic substances. DBPs are usually refractory to oxidation, mainly due to the presence of halogen compounds so that advanced oxidation processes (AOPs) are a recommended option to deal with their removal.
  • 1.4K
  • 23 Jun 2021
Topic Review
Lattice Boltzmann Method
Biofilm growth and evolution are very complex interactions among physicochemical and biological processes. Mathematical models are critical to modern biotechnology—both in research and in the engineering practice. Thus, many models of biofilms have been developed to include various biofilm reactor modules. However, considerable challenges exist in modelling microbial processes where mesoscopic dynamics of nutrient transport must be coupled with microscopic bacteria growth and their elementary biochemical reactions at reactive or enzymatic interfaces, in addition to the microbiological and/or ecological aspects of the “micro” organisms involved in biofilms. Lattice Boltzmann Method (LBM) treats flows in terms of fictive parcels of particles which reside on a mesh and conduct translation according to collision steps entailing overall fluid-like behavior. The goal of this review is to discuss and identify the opportunities of applying different LBM-based models to specific areas of biofilm research as well as unique challenges that LBM-based models must overcome.
  • 1.4K
  • 19 Jul 2021
Topic Review
Traditional Management of Cancer
Cancer, a generic term for a large group of diseases, may affect any part of the body. It is one of the world’s most horrifying diseases triggered by uncontrolled cellular proliferation. The development and progression of cancer are caused by an oncogene, the tumor suppressor gene (TSG), and alterations of the microRNA gene.
  • 1.4K
  • 10 Aug 2021
Topic Review
Properties of Moringa Oleifera Seeds
Because the seeds of Moringa Oleifera contain a water-soluble cationic coagulant protein, they are used as a primary coagulant in drinking water clarification and wastewater treatment through their ability to reduce the turbidity of treated water. These proteins are considered the most widely investigated plant-based coagulant, having been researched by several scholars.The seeds of Moringa Oleifera possess good coagulating properties comparable to commercial alum used in turbidity removal.
  • 1.4K
  • 08 Mar 2023
Topic Review
Health Effects of PM2.5
Particulate matter (PM) is a widespread air pollutant, consisting of a mixture of solid and liquid particles suspended in the air, covering a wide range of sizes and chemical compositions. Among ambient air pollutants most commonly investigated are PM with diameters < 10 μm and <2.5 μm (PM2.5, PM10).
  • 1.4K
  • 17 Apr 2023
Topic Review
Climate Change Policy of California
California has taken legislative steps in the hope of mitigating the risks of potential effects of climate change in California by incentives and plans for clean cars, renewable energy, and pollution controls on industry.
  • 1.4K
  • 01 Dec 2022
Topic Review
Service Design of Garbage Classification Driven by AI
Compared with other countries, there are big differences in the treatment modes and actual results of garbage classification due to different economic strengths, resource demands, technical levels, and legal policies.
  • 1.3K
  • 29 Jan 2024
Topic Review
Environmental Levels of Polychlorinated Diphenyl Ethers
Polychlorinated diphenyl ethers (PCDEs) are a class of synthetic halogenated aromatic compounds, which have gradually attracted widespread attention due to potential environmental risks to humans and ecosystems.
  • 1.3K
  • 18 Mar 2023
Topic Review
IAQ in Museum Display Cases
The control of air quality in museum showcases is a growing issue for the conservation of the displayed artefacts. Inside an airtight showcase, volatile substances may rapidly concentrate and favor or directly cause the degradation or other unwanted phenomena on the objects. The role of materials used in the construction of museum display cases as a source of pollutants and volatile compounds dangerous for the cultural heritage integrity is here reviewed with an illustration of consequences and critical damages. Ways of assessing the suitability of materials used either in the construction or in use of the display cases are also discussed altogether with an overview of the possible choices for monitoring the air quality and limiting the concentration of volatile compounds in their interior.
  • 1.3K
  • 29 Mar 2021
Topic Review
Environmental Valuation Research
Environmental valuation (EV) research has advanced significantly as a method of assigning value to environmental goods, many of which lack readily discernible market values. The term “environmental valuation” describes a number of methods for putting monetary values on environmental effects, particularly non-market effects. There has been a continuous increase in the number of publications on the topic. According to searches via the Scopus and Web of Science (WoS) databases, the phrase “environmental valuation” first occurred in 1987.
  • 1.3K
  • 14 Apr 2023
Topic Review
The Influencing Factors of Loess Carbon Sink
The relationship between the source and sink of atmospheric CO2 has always been a widely discussed issue in global climate change research. As one of the main overburdened parts of the earth, loess is one of the important driving factors for atmospheric CO2 consumption.
  • 1.3K
  • 13 Jan 2023
Topic Review
Non-Invasive Indoor Thermal Discomfort Detection
Since 1997, scientists have been trying to utilize new non-invasive approaches for thermal discomfort detection, which promise to be more effective for comparing frameworks that need direct responses from users. Due to rapid technological development in the bio-metrical field, a systematic literature review to investigate the possibility of thermal discomfort detection at the work place by non-invasive means using bio-sensing technology was performed. Firstly, the problem intervention comparison outcome context (PICOC) framework was introduced in the study to identify the main points for meta-analysis and, in turn, to provide relevant keywords for the literature search. In total, 2776 studies were found and processed using the preferred reporting items for systematic reviews and meta-analyses (PRISMA) methodology. After filtering by defined criterion, 35 articles were obtained for detailed investigation with respect to facility types used in the experiment, amount of people for data collection and algorithms used for prediction of the thermal discomfort event. The given study concludes that there is potential for the creation of non-invasive thermal discomfort detection models via utilization of bio-sensing technologies, which will provide a better user interaction with the built environment, potentially decrease energy use and enable better productivity. There is definitely room for improvement within the field of non-invasive thermal discomfort detection, especially with respect to data collection, algorithm implementation and sample size, in order to have opportunities for the deployment of developed solutions in real life. Based on the literature review, the potential of novel technology is seen to utilize a more intelligent approach for performing non-invasive thermal discomfort prediction. The architecture of deep neural networks should be studied more due to the specifics of its hidden layers and its ability of hierarchical data extraction. This machine learning algorithm can provide a better model for thermal discomfort detection based on a data set with different types of bio-metrical variables.
  • 1.3K
  • 11 Feb 2021
Topic Review
Landolt Indicator Values in Modern Research
The conservation of biodiversity and ecosystem sustainability is essential for human well-being. An important tool for addressing this issue is ecological indicators. 
  • 1.3K
  • 02 Apr 2024
Topic Review
Roger A. Pielke Jr.
Roger A. Pielke Jr. (born November 2, 1968) is an American political scientist and professor, and was the director of the Sports Governance Center within the Department of Athletics at the Center for Science and Technology Policy Research at the University of Colorado Boulder. He previously served in the Environmental Studies Program and was a Fellow of the Cooperative Institute for Research in Environmental Sciences (CIRES) where he served as Director of the Center for Science and Technology Policy Research at the University of Colorado Boulder from 2001 to 2007. Pielke was a visiting scholar at Oxford University's Saïd Business School in the 2007-2008 academic year. A prolific writer, his interests include understanding the politicization of science; decision making under uncertainty; policy education for scientists in areas such as climate change, disaster mitigation, and world trade; and research on the governance of sports organizations, including FIFA and the NCAA.
  • 1.3K
  • 20 Oct 2022
Topic Review
Urban Built and Mixed Spaces
Natural areas are now broadly recognised as important resources to restore the cognitive and emotional resources of urban dwellers, but everyday urban environments are rarely studied for their salutogenic properties. This review collects emerging evidence of instances in which built and mixed urban environments were found to be more restorative than natural ones for the urban population. Generally, historical, recreational and panoramic places have been found to have the most restorative potential of all mixed and built urban environments. This particularly applies to teenagers and older people who value social interactions for their well-being. Vegetation and natural elements were still found to play an important role in the assessment of this restorative potential.
  • 1.3K
  • 27 Oct 2020
Topic Review
Sustainable Development and Environmental Kuznets Curve
Under the Kyoto Protocol which is international law since 2005, 15 EU member countries (the "EU-15") committed to reducing their collective emissions of a set of six greenhouse gases in the 2008-2012 period to 8% below the 1990 level. The EU established the first cap-and-trade system for carbon dioxide emissions in the world in 2005. This entry uses the effect of the European Union Emissions Trading System (EU ETS) on carbon dioxide (CO2) emissions for the European Union using a cross-country panel data set consisting of 12 countries extracted from the EU-15 from 1980 to 2009. 
  • 1.3K
  • 18 Dec 2022
Topic Review
Climate Change and Gender
The effects of climate change and gender do not impact equally on men and women. This results not from biological differences due to one's sex, but from the social construction of gender roles and relations, which affect the accepted behaviors of men and women. Climate change increases gender inequality, reduces women's ability to be financially independent, and has an overall negative impact on the social and political rights of women, especially in economies that are heavily based on agriculture. In many cases, gender inequality means that women are more vulnerable to the negative effects of climate change. This is due to gender roles, particularly in the developing world, which means that women are often dependent on the natural environment for subsistence and income. By further limiting women's already constrained access to physical, social, political, and fiscal resources, climate change often burdens women more than men and can magnify existing gender inequality. Gender-based differences have also been identified in relation to awareness, causation and response to climate change, and many countries have developed and implemented gender-based climate change strategies and action plans. For example, the government of Mozambique adopted a Gender, Environment and Climate Change Strategy and Action Plan in early 2010, being the first government in the world to do so. Analysis of gender in climate change, however, is not limited to women. It also means not only applying a binary male/female system of analysis on sets of quantitative data, but also scrutinizing discursive constructions that shapes power relations connected to climate change.
  • 1.3K
  • 10 Oct 2022
Topic Review
Fungi Remediate Soils Contaminated by War-like Activities
Fungi comprise the largest kingdom of higher organisms on the planet: eukaryotes with complex cell structures and abilities to make tissues and organs. Hyphae filaments have a rigid, complex cell wall and moving protoplasm (cytosol) divided into compartments by cross walls termed septa, allowing cellular components to move through these. The plasma membrane comprises a phospholipid bilayer associated with transmembrane proteins and ergosterol and some enzymes such as integral membrane proteins chitin synthase and glucan synthase. The release of enzymes into the extracellular environment, which many fungal species carry out, and the high contact area between filamentous fungi and the soil make these organisms promising for the degradation or immobilization of pollutants (explosives, metals, metalloids, radionuclides, and herbicides) in soil impacted by War-like activities.
  • 1.3K
  • 17 Feb 2024
Topic Review
Applied Soil Remediation Strategies in Coal Mining Areas
Coal remains a very important source of energy for the global economy. Surface and underground coal mining are the two major methods of coal extraction, and both have benefits and drawbacks. Surface coal mining can have a variety of environmental impacts including ecosystem losses, landscape alteration, soil destruction, and changes to surface and groundwater quality and quantity. In addition, toxic compounds such as heavy metals, radioactive elements, polycyclic aromatic hydrocarbons (PAHs), and other organic contaminants are released in the environment, ultimately affecting the health of ecosystems and the general population. Underground mining has large impacts on underground water supplies and water quality, but generally has less visual surface impacts such as leaving waste and tailings on the surface and subsidence problems. In response to the concern about these environmental issues, many strategies have been developed by scientists and practitioners to minimize land degradation and soil pollution due to mining.
  • 1.3K
  • 29 Aug 2023
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