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Topic Review
Waste Cooking Oil for Biofuel in India
Waste or used cooking oil (WCO/UCO) is a common source of trans fat consumed by Indians, leading to many non-communicable diseases like diabetes, hypertension, cardiovascular diseases, stroke, cancer, etc. In fact, out of 230 million MT of edible oil consumption, India is currently capable of producing only 3 million MT of biodiesel. Moreover, with the increased emphasis on the circular economy to improve rural employment opportunities, India should adopt a complete exergy analysis of biodiesel production from WCO.
  • 4.1K
  • 20 Feb 2023
Topic Review
Musa Fruits in Nutritive Phytopharmacology
Nutritional quality and the well-being of the body system are directly linked aspects     of human survival. From the unborn foetus to adulthood, the need for sustainable access to micronutrient-rich foods is pertinent and the global consumption of banana and plantain fruits, in effect, contributes to the alleviation of the scourge of malnutrition. This review is particularly aimed at evaluating the pharmacological dimensions through the biological mechanisms of Musa fruits  in the body, which represent correlations with their constituent micronutrient factors and dietary polyphenolic constituents such as minerals, vitamin members, anthocyanins, lutein, α-,β- carotenes, neoxanthins and cryptoxanthins, epi- and gallo catechins, catecholamines, 3-carboxycoumarin, β-sitosterol, monoterpenoids, with series of analytical approaches for the various identified compounds being highlighted therein.
  • 4.1K
  • 05 Jan 2021
Topic Review
Sting-Related Deaths in Europe (1994–2016)
Bees and wasps provide an important service to ecosystems, contributing to the improvement of biodiversity while helping to maintain ecological balance. Although not frequent, hornet, wasp, and bee stings may be life-threatening. With each sting, Hymenopterans inject a small amount of venom that can cause reactions of varying intensity: (i) normal local reactions (NLR), (ii) large local reactions (LLR), (iii) systemic anaphylactic reactions (SAR), (iv) systemic toxic reactions (STR) and (v) unusual reactions (UR).  Hymenopteran stings have recently become a worldwide public health concern. However, this health problem can be underestimated despite the number of cases presented. With the expansion of non-native Hymenopteran species across Europe, allergists should be aware that their community’s exposures are continually changing.
  • 4.1K
  • 28 Feb 2022
Topic Review
Fucoxanthin Extracted from Brown Algae
The scientific community has corroborated the numerous beneficial activities of fucoxanthin, such as its antioxidant, anti-inflammatory, anticancer or neuroprotective effects, among others. These properties have attracted the attention of nutraceutical, cosmetic and pharmacological industries, giving rise to various possible applications. Fucoxanthin may be chemically produced, but the extraction from natural sources is considered more cost-effective, efficient and eco-friendly. Thus, identifying suitable sources of this compound and giving a general overview of efficient extraction, quantification, purification and stabilization studies is of great importance for the future production and commercialization of fucoxanthin. The entry describes the potential applications of fucoxanthin pigment. Its production must face several challenges since its chemical synthesis represents a complex process which is not efficient and the extraction method from marine organisms has been not standardized. The main characteristic of a profitable product is to be obtained by using simple, fast, and based on low-cost technologies. This work provides an overview of different extraction conditions that may help in the standardization of the process, especially important at an industrial level. Therefore, the main aim of this work has been to underline the best algae species in terms of fucoxanthin production and the most promising extraction and purification methods, while offering a complete panorama of the described bioactivities of fucoxanthin which includes bioavailability, administration via, doses and stability of the molecule under different conditions.
  • 4.1K
  • 07 Feb 2021
Topic Review
Thienopyrimidine
Thienopyrimidine emerges as an attractive scaffold in medicinal chemistry with a wide array of pharmacological properties, such as antibacterial, antifungal, antiparasitic and antiviral. Considering the fusion between pyrimidine and thiophene rings, three different thienopyrimidines can be obtained, namely thieno[2,3-d]pyrimidines, thieno[3,2-d]pyrimidines and thieno[3,4-d]pyrimidines. Different synthetic pathways involving the construction of the pyrimidine or the thiophene ring were reported in the literature to access polysubstituted thienopyrimidines. In these approaches, the synthetic strategies mostly involved the synthesis of a thienopyrimidin-4-one derivative, where position 4 could be modified via further functionalization.
  • 4.1K
  • 13 Jan 2022
Topic Review
Coypu
The coypu (from spa coipú, from arn koypu; Myocastor coypus), also known as the nutria, is a large, herbivorous, semiaquatic rodent. Classified for a long time as the only member of the family Myocastoridae, Myocastor is now included within Echimyidae, the family of the spiny rats. The coypu lives in burrows alongside stretches of water, and feeds on river plant stems. Originally native to subtropical and temperate South America, it has since been introduced to North America, Europe, Asia, and Africa, primarily by fur farmers. Although it is still hunted and trapped for its fur in some regions, its destructive burrowing and feeding habits often bring it into conflict with humans, and it is considered an invasive species.
  • 4.1K
  • 04 Nov 2022
Topic Review
Metal Oxide Semiconductor Gas Sensors in Food Industry
Volatile compounds not only contribute to the distinct flavors and aromas found in foods and beverages, but can also serve as indicators for spoilage, contamination, or the presence of potentially harmful substances. As the odor of food raw materials and products carries valuable information about their state, gas sensors play a pivotal role in ensuring food safety and quality at various stages of its production and distribution. Among gas detection devices that are widely used in the food industry, metal oxide semiconductor (MOS) gas sensors are of the greatest importance. Ongoing research and development efforts have led to significant improvements in their performance, rendering them immensely useful tools for monitoring and ensuring food product quality.
  • 4.1K
  • 05 Dec 2023
Topic Review
Compositional Engineering of Perovskites
We give a systematic overview of compositional engineering by distinguishing the different defect-reducing mechanisms. Doping effects are divided into influences on: (1) crystallization; (2) lattice properties. Incorporation of dopant influences the lattice properties by: (a) lattice strain relaxation; (b) chemical bonding enhancement; (c) band gap tuning. The intrinsic lattice strain in undoped perovskite was shown to induce vacancy formation. The incorporation of smaller ions, such as Cl, F and Cd, increases the energy for vacancy formation. Zn doping is reported to induce strain relaxation but also to enhance the chemical bonding. The combination of computational studies using (DFT) calculations quantifying and qualifying the defect-reducing propensities of different dopants with experimental studies is essential for a deeper understanding and unraveling insights, such as the dynamics of iodine vacancies and the photochemistry of the iodine interstitials, and can eventually lead to a more rational approach in the search for optimal photovoltaic materials.
  • 4.1K
  • 28 Oct 2020
Topic Review
Exoskeletons
Exoskeletons are orthoses of a certain kind—devices that work in harmony and parallel with their users (humans) in order to augment physical performance and are able to complete certain tasks or movements. In order to achieve such coordination, the device must be fitted to the user’s dimensions. 
  • 4.1K
  • 12 Jan 2021
Topic Review
Single Cell Protein
Single cell protein (SCP) is the first product of the fermentation process and has proven to be a good protein alternative. Food competition is becoming more intense as the world’s population continues to grow. Soon, SCP may be able to compensate for a protein deficit. Various global businesses are focusing on SCP production, and the scope of its application is expanding as time and knowledge increases.
  • 4.1K
  • 30 Aug 2021
Topic Review
Cellulose Nanomaterials
Cellulose is the most abundant renewable source on Earth. Due to several of their characteristics, such as their renewability, sustainability, and eco-friendliness, nanocellulose-based materials are arousing growing interest from researchers in various fields of study and applications. 
  • 4.1K
  • 20 Dec 2022
Topic Review
Structure of the Earth
The internal structure of the Earth is layered in spherical shells: an outer silicate solid crust, a highly viscous asthenosphere and mantle, a liquid outer core that is much less viscous than the mantle, and a solid inner core. Scientific understanding of the internal structure of the Earth is based on observations of topography and bathymetry, observations of rock in outcrop, samples brought to the surface from greater depths by volcanoes or volcanic activity, analysis of the seismic waves that pass through the Earth, measurements of the gravitational and magnetic fields of the Earth, and experiments with crystalline solids at pressures and temperatures characteristic of the Earth's deep interior.
  • 4.1K
  • 26 Oct 2022
Topic Review
Sustainable Fashion Consumption
The fast-fashion market is becoming popular, escalating, and aggravating the throwaway culture phenomenon. Thus, it is valuable to understand the factors that influence sustainable fashion consumption and the clothing disposal pattern among young consumers in developing countries like Malaysia. Personal norms, social norms, and environmental awareness were the key influencing factors of sustainable fashion consumption. Philanthropic clothing disposal approaches such as donating clothes to charity or giving them away to family and friends, and selling old clothing for economic reasons are popular among young adults in Malaysia. Facilitating conditions to dispose of unwanted clothing is not as crucial as in developing countries. Many areas in developing countries still lack or are unable to locate facilities that collect unwanted clothing.
  • 4.1K
  • 11 Mar 2022
Topic Review
Existential Suffering in Palliative Care
Existential suffering refers to one's angst due to a perceived loss of meaning, hope, relationships, and a sense of self in thinking about death and dying. Quality palliative care not only takes care of patients’ physical and existential suffering but also fills their last days with opportunities for redemption, spiritual growth, and reconciliation. We propose a holistic approach as illustrated by the healing wheel, involving health care providers, the community, patients, and a Higher Power.
  • 4.1K
  • 29 Sep 2021
Topic Review
Cat-Scratch Disease’s Neuro-Ophthalmological Effects
Cat-scratch disease is an illness caused by Bartonella henselae that occurs as a result of contact with an infected kitten or dog, such as a bite or scratch. It is more prevalent in children and young adults, as well as immunocompromised individuals. Among the ophthalmologic disorders caused by cat-scratch disease in humans, Parinaud oculoglandular syndrome, uveitis, vitritis, retinitis, retinochoroiditis and optic neuritis are the most prevalent. The neurological disorders caused by cat-scratch disease in humans include encephalopathy, transverse myelitis, radiculitis, and cerebellar ataxia.
  • 4.1K
  • 21 Feb 2022
Topic Review
Religious Trauma Syndrome
Religious trauma syndrome (RTS) is recognized in psychology and psychotherapy as a set of symptoms, ranging in severity, experienced by those who have participated in and left behind authoritarian, dogmatic, and controlling religious groups and belief systems. Symptoms include cognitive, affective, functional, and social/cultural issues as well as developmental delays. RTS occurs in response to two-fold trauma: first the prolonged abuse of indoctrination from a controlling religious community, and secondly the act of leaving the controlling religious community. RTS has developed as its own heuristic collection of symptoms informed by psychological theories of trauma originating in PTSD, C-PTSD and betrayal trauma theory, taking relational and social context into account when approaching further research and treatment. The term religious trauma syndrome was coined in 2011 by psychologist Marlene Winell in an article for British Association for Behavioural and Cognitive Psychotherapies, though the phenomenon was recognized long before that. The term has circulated among psychotherapists, former fundamentalists, and others recovering from religious indoctrination. Winell explains the need for a label and the benefits of naming the symptoms encompassed by RTS as similar to naming anorexia as a disorder: the label can lessen shame and isolation for survivors while promoting diagnosis, treatment, and training for professionals who work with those suffering from the condition. Survivors report relief when they find out that RTS is “real.”
  • 4.1K
  • 22 Nov 2022
Topic Review
YUC in Plant Developmental Processes
The YUC gene family encodes the rate-limiting enzymes in the TAA/YUC pathway, which stands as the primary endogenous auxin biosynthesis pathway in plants. YUC-medicated local auxin biosynthesis is important for establishing auxin gradient within cells/tissues and precisely regulating various major developmental processes such as root development, leaf morphogenesis, and reproductive development. The spatiotemporal expressions of different YUC genes enable function specialization across different plant species.
  • 4.1K
  • 23 Oct 2020
Topic Review
Histamine H1 Receptor Antagonists
Histamine H1 receptor (H1 receptor) antagonists are widely prescribed medications to treat allergic diseases, while recently it has emerged that they show significant promise as anti-SARS-CoV-2 agents.
  • 4.1K
  • 03 Jun 2021
Topic Review
Life Cycle of Puccinia striiformis f. sp. tritici
Stem rust or black rust, caused by Puccinia graminis f. sp. tritici Erikss. and E. Henn. (Pgt), leaf rust or brown rust, caused by Puccinia triticina Erikss. (Pt) and the wheat stripe rust or yellow rust, caused by Puccinia striiformis Westend. f. sp. tritici Erikss. (Pst), is a historically crucial economic disease that occurs in almost all wheat-growing regions worldwide.
  • 4.1K
  • 23 May 2022
Topic Review
Radio Direction Finder
A radio direction finder (RDF) is a device for finding the direction, or bearing, to a radio source. The act of measuring the direction is known as radio direction finding or sometimes simply direction finding (DF). Using two or more measurements from different locations, the location of an unknown transmitter can be determined; alternately, using two or more measurements of known transmitters, the location of a vehicle can be determined. RDF is widely used as a radio navigation system, especially with boats and aircraft. RDF systems can be used with any radio source, although the size of the receiver antennas are a function of the wavelength of the signal; very long wavelengths (low frequencies) require very large antennas, and are generally used only on ground-based systems. These wavelengths are nevertheless very useful for marine navigation as they can travel very long distances and "over the horizon", which is valuable for ships when the line-of-sight may be only a few tens of kilometres. For aircraft, where the horizon at altitude may extend to hundreds of kilometres, higher frequencies can be used, allowing much smaller antennas. An automatic direction finder, often capable of being tuned to commercial AM radio transmitters, is a feature of almost all modern aircraft. For the military, RDF systems are a key component of signals intelligence systems and methodologies. The ability to locate the position of an enemy transmitter has been invaluable since World War I, and it played a key role in World War II's Battle of the Atlantic. It is estimated that the UK's advanced "huff-duff" systems were directly or indirectly responsible for 24% of all U-boats sunk during the war. Modern systems often use phased array antennas to allow rapid beam forming for highly accurate results. These are generally integrated into a wider electronic warfare suite. Several distinct generations of RDF systems have been used over time, following new developments in electronics. Early systems used mechanically rotated antennas that compared signal strengths from different directions, and several electronic versions of the same concept followed. Modern systems use the comparison of phase or doppler techniques which are generally simpler to automate. Modern pseudo-Doppler direction finder systems consist of a number of small antennas fixed to a circular card, with all of the processing performed by software. Early British radar sets were also referred to as RDF, which was a deception tactic. However, the terminology was not inaccurate; the Chain Home systems used separate omnidirectional broadcasters and large RDF receivers to determine the location of the targets.
  • 4.1K
  • 10 Oct 2022
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