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Topic Review
Toward a Feminist Agroecology
Agroecology is gaining ground as a movement, science, and set of practices designed to advance a food systems transformation which subverts the patterns of farmer exploitation currently entrenched in dominant agricultural models. A feminist agroecology focuses on redressing unequal gender relations as well as other intersecting relations of marginalization such as race, class, caste, and ethnic identity. 
  • 1.8K
  • 20 Oct 2021
Topic Review
Calprotectin As a Drug Target
Calprotectin (CP), a heterodimer of S100A8 and S100A9 EF-hand calcium-binding proteins, is an integral part of the innate immune response. CP exploits the metal requirement of pathogens in the host immune response through the chelation of transition metals, starving pathogens of these nutrients. In addition, CP plays a role in the inflammatory response by acting as a ligand for cell surface receptors that signal through the NF-κB signaling pathway.
  • 1.8K
  • 21 Apr 2022
Topic Review
Chemically Activated Glass-Ionomer Cements as Bioactive Materials
Glass-ionomer cement (GIC) is a long-established restorative dental material with several clinical applications that have remained relevant because of the chemical adhesive bond it forms at the tooth-restoration interface and its fluoride-releasing and recharging properties. It was invented by Wilson and Kent in 1969 and successfully introduced into clinical practice in 1972. Chemically activated GICs, commonly referred to as conventional GICs, typically consist of ion-leachable glasses based on calcium or strontium alumino-fluorosilicate and weak polymeric water-soluble acids of polyacrylic acid (PAA) homopolymer, or acrylic acid, maleic/itaconic acid copolymer. They set by an acid-base reaction, and the setting reaction is initiated by mixing glass powder and polymeric acids. 
  • 1.8K
  • 30 Mar 2023
Topic Review
Challenges Women Experience in Leadership Careers
A part of diversity management is working to achieve gender equality and create a comfortable working environment for women. However, in many organizations, gender biases and stereotypes frequently occur, consciously or unconsciously, regardless of whether women take on leadership roles. In addition, women must overcome a variety of challenges when taking on leadership roles or aspiring to become leaders. Based on the above background, the researchers review and integrate the literature on management and career studies related to the challenges that women face in the process of advancing to leadership positions in organizations. Specifically, the researchers examine the external and internal factors that create the various obstacles that women who aspire to leadership positions in structured organizations face from a gender perspective.
  • 1.8K
  • 24 May 2023
Topic Review
Marbled Cat
The Marbled Cat (Pardofelis marmorata) is a small and elusive wild cat species native to the forests of Southeast Asia. Renowned for its striking marbled coat pattern, this felid species occupies a niche as an arboreal predator, adept at navigating the dense canopy of its habitat. Despite its cryptic nature and limited sightings in the wild, the Marbled Cat plays a significant role in forest ecosystems, preying on small mammals, birds, and reptiles, and contributing to the regulation of prey populations.
  • 1.8K
  • 08 Mar 2024
Topic Review
MDCs for Next-generation Optical Coatings
In Dielectric/Metal/Dielectric (DMD) type multilayer coating applications, it is very important to achieve simultaneously highly stable and durable optical properties together with accurate control over the apparent color properties of coated glass, in both reflection and transmission. In this encyclopedia entry, we report on the properties of RF magnetron co-sputtered metal-dielectric composite (MDC) material systems of interest for forward-looking applications in the areas of thin-film nanomaterials and optical coatings.
  • 1.8K
  • 02 Nov 2020
Topic Review
Smart Parking Systems
The large number of vehicles constantly seeking access to congested areas in cities means that finding a public parking place is often difficult and causes problems for drivers and citizens alike. In this context, strategies that guide vehicles from one point to another, looking for the most optimal path, are needed. Most contributions in the literature are routing strategies that take into account different criteria to select the optimal route required to find a parking space. This paper aims to identify the types of smart parking systems (SPS) that are available today, as well as investigate the kinds of vehicle detection techniques (VDT) they have and the algorithms or other methods they employ, in order to analyze where the development of these systems is at today. To do this, a survey of 274 publications from January 2012 to December 2019 was conducted. The survey considered four principal features: SPS types reported in the literature, the kinds of VDT used in these SPS, the algorithms or methods they implement, and the stage of development at which they are. Based on a search and extraction of results methodology, this work was able to effectively obtain the current state of the research area. In addition, the exhaustive study of the studies analyzed allowed for a discussion to be established concerning the main difficulties, as well as the gaps and open problems detected for the SPS. The results shown in this study may provide a base for future research on the subject.
  • 1.8K
  • 27 Oct 2020
Topic Review
Wnt Signaling in Human Diseases
Wnt signaling has been implicated in a wide spectrum of important biological phenomena, where either a deficiency or overactivation of key effectors can lead to various human diseases. This review highlights historical and recent findings on key mediators of Wnt signaling and its association with various developmental diseases and tumorigenesis.
  • 1.8K
  • 13 Nov 2020
Topic Review
High-Throughput Screening
HTS involves in vitro, cell- or whole organism- based assays. The most common readouts for biochemical assays in HTS are optical, including absorbance, fluorescence, luminescence, and scintillation.
  • 1.8K
  • 21 Jul 2021
Topic Review
Electrochemical Biosensor
Electrochemical Biosensor can be used to detect low concentrations of analytes.
  • 1.8K
  • 22 Jul 2021
Topic Review
Cellulases
Cellulose is a macromolecular polysaccharide linked by glucose via a β-1,4-glycosidic bond, is insoluble in water and organic solvents, and forms the plant cell wall together with hemicellulose, pectin, and lignin. Cellulases are a group of enzymes that can hydrolyze the glycosidic bonds of cellulose to produce glucose, and the members of this group include exoglucanase, endoglucanase, and β-glucosidase. The synergistic action of these enzymes can break down cellulose into glucose.
  • 1.8K
  • 28 Jul 2021
Topic Review
Honokiol
Cancer is characterised by uncontrolled cell division and abnormal cell growth, which is largely caused by a variety of gene mutations. There are continuous efforts being made to develop effective cancer treatments as resistance to current anticancer drugs has been on the rise. Natural products represent a promising source in the search for anticancer treatments as they possess unique chemical structures and combinations of compounds that may be effective against cancer with a minimal toxicity profile or few side effects compared to standard anticancer therapy. Extensive research on natural products has shown that bioactive natural compounds target multiple cellular processes and pathways involved in cancer progression.
  • 1.8K
  • 18 Aug 2021
Topic Review
Digital Government
Digital Government (DG) may be treated as an umbrella concept, and engaged rhetoric may respond to different government priorities. DG does not have one settled definition; extracting the “perfect” one emerges as a scientific activity on its own, and circulating definitions vary in terms of scope—from information supply to e-democracy; subject—from citizens to all public stakeholders; and technology family—from personal computers to the Internet. To make things even more complicated, DG is also called by various synonyms or near synonyms, such as “electronic government,” “electronic governance,” “transformational government,” and others. In our paper, we stick with the “digital government” label and study its relations with governance. A clarification for readers not familiar with this nomenclature: DG does not refer to a “digital” variant of “normal” government; it is rather about the use of digital technologies by government. What is more, a distinction between “government” and “governance” should be made: governance is a multi-stakeholder process and government at any level can be a stakeholder in this process.
  • 1.8K
  • 29 Dec 2021
Topic Review
Valorization of Brewers’ Spent Grains
Brewers’ spent grains constitute a valuable byproduct of the beer industry. They are characterized by a rich nutritional composition consisting of around 70% lignocellulosic fibrous material, 20% proteins, 10% lipids, in addition to vitamins, minerals, amino acids, and phenolic compounds.
  • 1.8K
  • 25 Feb 2022
Topic Review
Miniaturization of Laser Doppler Vibrometers
Laser Doppler vibrometry (LDV) is a non-contact vibration measurement technique based on the Doppler effect of the reflected laser beam. Thanks to its feature of high resolution and flexibility, LDV has been used in many different fields today. The miniaturization of the LDV systems is one important development direction for the current LDV systems that can enable many new applications.
  • 1.8K
  • 22 Jul 2022
Topic Review
Polymorphism
In biology, polymorphism is the occurrence of two or more clearly different morphs or forms, also referred to as alternative phenotypes, in the population of a species. To be classified as such, morphs must occupy the same habitat at the same time and belong to a panmictic population (one with random mating). Put simply, polymorphism is when there are two or more possibilities of a trait on a gene. For example, there is more than one possible trait in terms of a jaguar's skin colouring; they can be light morph or dark morph. Due to having more than one possible variation for this gene, it is termed 'polymorphism'. However, if the jaguar has only one possible trait for that gene, it would be termed "monomorphic". For example, if there was only one possible skin colour that a jaguar could have, it would be termed monomorphic. The term polyphenism can be used to clarify that the different forms arise from the same genotype. Genetic polymorphism is a term used somewhat differently by geneticists and molecular biologists to describe certain mutations in the genotype, such as single nucleotide polymorphisms that may not always correspond to a phenotype, but always corresponds to a branch in the genetic tree. See below. Polymorphism is common in nature; it is related to biodiversity, genetic variation, and adaptation. Polymorphism usually functions to retain a variety of forms in a population living in a varied environment.:126 The most common example is sexual dimorphism, which occurs in many organisms. Other examples are mimetic forms of butterflies (see mimicry), and human hemoglobin and blood types. According to the theory of evolution, polymorphism results from evolutionary processes, as does any aspect of a species. It is heritable and is modified by natural selection. In polyphenism, an individual's genetic makeup allows for different morphs, and the switch mechanism that determines which morph is shown is environmental. In genetic polymorphism, the genetic makeup determines the morph. The term polymorphism also refers to the occurrence of structurally and functionally more than two different types of individuals, called zooids, within the same organism. It is a characteristic feature of cnidarians. For example, Obelia has feeding individuals, the gastrozooids; the individuals capable of asexual reproduction only, the gonozooids, blastostyles; and free-living or sexually reproducing individuals, the medusae. Balanced polymorphism refers to the maintenance of different phenotypes in population.
  • 1.8K
  • 07 Nov 2022
Biography
Cyrus Chothia
Cyrus Homi Chothia (19 February 1942 – 26 November 2019)[1] FRS[2][3] was an English biochemist who was an emeritus scientist at the Medical Research Council (MRC) Laboratory of Molecular Biology (LMB) at the University of Cambridge[4][5] and emeritus fellow of Wolfson College, Cambridge.[2][6][7][8][9][10][11] Chothia was educated at Alleyn's School,[12] then went to study at Durham Univer
  • 1.8K
  • 16 Nov 2022
Topic Review
Library Anxiety
Library anxiety refers to the "feeling that one’s research skills are inadequate and that those shortcomings should be hidden. In some students this manifests as an outright fear of libraries and the librarians who work there." The term stems from a 1986 article by Constance Mellon, a professor of library science in the United States state of North Carolina, titled "Library anxiety: A grounded theory and its development" in the College & Research Libraries journal.
  • 1.8K
  • 17 Nov 2022
Topic Review
Russian Orthodox Properties in Palestine
Russian Orthodox properties in Palestine refers to real-estate owned by the Russian Orthodox Church (ROC) in Israel and the West Bank.
  • 1.8K
  • 30 Nov 2022
Topic Review
Endoscopic Ultrasound for Gastrointestinal Stromal Tumours
Gastrointestinal Stromal Tumors (GISTs) are subepithelial lesions (SELs) that commonly develop in the gastrointestinal tract. GISTs, unlike other SELs, can exhibit malignant behavior, so differential diagnosis is critical to the decision-making process. Endoscopic ultrasound (EUS) is considered the most accurate imaging method for diagnosing and differentiating SELs in the gastrointestinal tract by assessing the lesions precisely and evaluating their malignant risk.
  • 1.8K
  • 22 Feb 2023
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