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Topic Review
Biography
Peer Reviewed Entry
Video Entry
Topic Review
Spirit Spouse
The spirit spouse is one of the most widespread elements of shamanism, distributed through all continents and at all cultural levels. Often, these spirit husbands/wives are seen as the primary helping spirits of the shaman, who assist them in their work, and help them gain power in the world of spirit. The relationships shamans have with their spirit spouses may be expressed in romantic, sexual, or purely symbolic ways, and may include gender transformation as a part of correctly pairing with their "spouse". Shamans report engaging with their spirit spouses through dreams, trance, and other ritual elements. In some cultures, gaining a spirit spouse is a necessary and expected part of initiation into becoming a shaman. Evidence of spirit spouses may be seen in non-shamanic cultures as well, including dreams about Christ by nuns, who are considered to be "brides of Christ".
7.6K
16 Nov 2022
Topic Review
Greenhouse Drying System
Drying via solar energy is an environmentally friendly and inexpensive process. For controlled and bulk level drying, a greenhouse solar dryer is the most suitable controlled level solar dryer. The efficiency of a solar greenhouse dryer can be increased by using thermal storage. The agricultural products dried in greenhouses are reported to be of a higher quality than those dried in the sun because they are shielded from dust, rain, insects, birds, and animals. The heat storage-based greenhouse was found to be superior for drying of all types of crops in comparison to a normal greenhouse dryer, as it provides constant heat throughout the drying process.
7.6K
30 Jan 2023
Topic Review
“OVERTOURISM” - AROUND THE DEFINITION
Entry includes definition of overtourism phenomenon around the world with following literature references both historical and current research.
7.6K
19 Apr 2021
Topic Review
Adult Wistar Rats
Rats are considered adults from 2 to 5 months. During this period, they are used for experimentation in physiology and pharmacology. Adult rats, depending on their age, can be in a different physiological state, which can influence the results of experiments carried out on them. Despite this, age-related changes in adult rats have not yet been examined. Our results showed that as male and female rats progressed from 2 to 5 months of age there was a decrease in the level of motor and exploratory activities, and an increase in the level of anxiety-like behaviour. Age-related changes were dependent upon initial individual characteristics of behaviour. For example, animals that demonstrated high motor activity at 2 months become significantly less active by 5 months, and animals that showed a low level of anxiety at 2 months become more anxious by 5 months. Low-activity and high-anxiety rats did not show any significant age-related changes from 2 to 5 months of age.
7.6K
23 Aug 2021
Topic Review
Death Anxiety
Death anxiety is an unavoidable common phenomenon in our lives across cultures and religions. It is multidimensional and explained by different theoretical frameworks. Death anxiety can have negative impacts on wellbeing. Death is an inevitable experience that generates a reduced sense of safety and stronger fear (Alkozei et al. 2019).
7.6K
06 Feb 2021
Topic Review
GAZ Tigr
The GAZ Tigr (Russian: Тигр and English: Tiger) is a Russia n 4x4, multipurpose, all-terrain infantry mobility vehicle manufactured by GAZ, first delivered to the Russian Army in 2006. Primarily used by the Russian Federation's armed forces, it is also used by numerous other countries.
7.6K
26 Oct 2022
Topic Review
Geiger–Marsden Experiment
The Geiger–Marsden experiments (also called the Rutherford gold foil experiment) were a landmark series of experiments by which scientists discovered that every atom has a nucleus where all of its positive charge and most of its mass is concentrated. They deduced this by measuring how an alpha particle beam is scattered when it strikes a thin metal foil. The experiments were performed between 1908 and 1913 by Hans Geiger and Ernest Marsden under the direction of Ernest Rutherford at the Physical Laboratories of the University of Manchester.
7.6K
21 Oct 2022
Topic Review
Large Intestine
The large intestine consists of ascending, transverse, descending, sigmoidal colon and the rectum. The wall of the large intestine can be divided into four anatomically distinct layers (from inner to outer): mucosa, submucosa, muscularis propria (inner circular and outer longitudinal layers), and serosa. Its major physiological functions include absorbing water, moving waste residue down the GI tract, and temporary fecal storage, all of which involve mechanical movement and deformation of the tubular gastrointestinal structure. The biomechanics of the large intestinal tissue plays a key role in those aforementioned physiological functions in both health and disease. In addition, chronic visceral pain from the colon and rectum has a prominent mechanical component – it is mechanical distension, not heating, pinching, cutting, or inflammation that reliably evokes pain from hollow visceral organs. The structure and function of the large intestine is systematically summarized below with a particular focus on the heterogeneous biomechanical properties at different sub-layers of the intestinal wall.
7.6K
09 Nov 2020
Topic Review
Urinary Tract Infection
Urinary tract infection (UTI) is a common bacterial infection of the urethra, bladder, ureters, and the kidneys. A diagnosis of a positive UTI is any pathogen with a bacterial load of greater than 100,000 CFU/mL in the urine. A bacterial load under 100,000 CFU/mL is considered a negative UTI result. Escherichia coli (E.coli) is the most common pathogen that infects the urinary tract.
7.6K
10 Aug 2020
Topic Review
Nature-inspired optimization algorithms
Over previous decades, many nature-inspired optimization algorithms (NIOAs) have been proposed and applied due to their importance and significance. Some survey studies have also been made to investigate NIOAs and their variants and applications. However, these comparative studies mainly focus on one single NIOA, and there lacks a comprehensive comparative and contrastive study of the existing NIOAs.
7.6K
11 Nov 2021
Topic Review
Remarriage
Remarriage is a marriage that takes place after a previous marital union has ended, as through divorce or widowhood. Some individuals are more likely to remarry than others; the likelihood can differ based on previous relationship status (e.g. divorced vs. widowed), level of interest in establishing a new romantic relationship, gender, race, and age among other factors. Those who choose not to remarry may prefer alternative arrangements like cohabitation or living apart together. Remarriage also provides mental and physical health benefits. However, although remarried individuals tend to have better health than individuals who do not repartner, they still generally have worse health than individuals who have remained continuously married. Someone who repeatedly remarries is referred to as a serial wedder.
7.6K
27 Oct 2022
Topic Review
Polygyny
Polygyny (/pəˈlɪdʒɪni/; from Neoclassical Greek πολυγυνία; from grc πολύ 'many', and γυνή 'woman, wife') is the most common and accepted form of polygamy around the world, entailing the marriage of a man with several women.
7.5K
17 Oct 2022
Topic Review
Muhajir (Pakistani)
The Muhajir (Urdu: مہاجر, also spelled Mahajir and Mohajir) are Muslim immigrants, of multi-ethnic origin, and their descendants, who migrated from various regions of India after the Partition of India to settle in the newly independent state of Pakistan . The term Muhajirs refers to those Muslim migrants from India who mostly settled in urban Sindh.
7.5K
23 Jan 2024
Topic Review
Focal Point (Game Theory)
In game theory, a focal point (or Schelling point) is a solution that people tend to choose by default in the absence of communication. The concept was introduced by the American economist Thomas Schelling in his book The Strategy of Conflict (1960). Schelling states that "(p)eople can often concert their intentions or expectations with others if each knows that the other is trying to do the same" in a cooperative situation (at page 57), so their action would converge on a focal point which has some kind of prominence compared with the environment. However, the conspicuousness of the focal point depends on time, place and people themselves. It may not be a definite solution.
7.5K
14 Nov 2022
Topic Review
Performance Comparison of SQL and Graph Databases
In developing NoSQL databases, a major motivation is to achieve better efficient query performance compared with relational databases. The graph database is a NoSQL paradigm where navigation is based on links instead of joining tables. Links can be implemented as pointers, and following a pointer is a constant time operation, whereas joining tables is more complicated and slower, even in the presence of foreign keys. Therefore, link-based navigation has been seen as a more efficient query approach than using join operations on tables. Existing studies strongly support this assumption. Query complexity has received less attention. For example, in enterprise information systems, queries are usually complex so data need to be collected from several tables or by traversing paths of graph nodes of different types.
7.5K
15 Jul 2022
Topic Review
Cellulose
Cellulose is the main substance of a plant’s cell walls, helping plants to remain stiff and upright, hence, it can be extracted from plant sources, agriculture waste, animals, and bacterial pellicle. It is composed of polymer chains consisting of unbranched β (1,4) linked D glucopyranosyl units (anhydroglucose unit, AGU).
7.5K
07 Feb 2021
Topic Review
Luffa Natural Fiber Composites
Natural fiber composites (NFCs) are an evolving area in polymer sciences. Fibers extracted from natural sources hold a wide set of advantages such as negligible cost, significant mechanical characteristics, low density, high strength-to-weight ratio, environmental friendliness, recyclability, etc. Luffa cylindrica, also termed luffa gourd or luffa sponge, is a natural fiber that has a solid potential to replace synthetic fibers in composite materials in diverse applications like vibration isolation, sound absorption, packaging, etc. Recently, many researches have involved luffa fibers as a reinforcement in the development of NFC, aiming to investigate their performance in selected matrices as well as the behavior of the end NFC.
7.5K
25 Sep 2020
Topic Review
Enzyme Based Biosensors
Enzyme-based biosensors were the earliest biosensors. In 1962, Clark proposed the idea of enzyme electrodes for a glucose sensor. Subsequently, enzyme-based biosensors have been experimenting a massive growth in several applications.
7.5K
29 Oct 2021
Topic Review
List of Seaplanes and Amphibious Aircraft
The following is a list of seaplanes and amphibious aircraft, which includes floatplanes and flying boats, by country of origin. Seaplanes are any aircraft that has the capability of landing on water while amphibious aircraft are equipped with wheels to alight on land, as well as being able to land on the water. Flying boats rely on the fuselage or hull for buoyancy, while floatplanes rely on external pontoons or floats. Some experimental aircraft used specially designed skis to skim across the water but did not always have a corresponding ability to float. This list does not include ekranoplans, 'Wing-In-Ground-effect' (WIG), water-skimmers, wingships or similar vehicles reliant on ground effect.
7.5K
07 Nov 2022
Topic Review
Essential Oil Prevents COVID-19
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV‑2), also known as coronavirus disease-2019 (COVID-19), is a pandemic disease that has been declared as modern history’s gravest health emergency worldwide. Until now, no precise treatment modality has been developed. The angiotensin-converting enzyme 2 (ACE2) receptor, a host cell receptor, has been found to play a crucial role in virus cell entry; therefore, ACE2 blockers can be a potential target for anti-viral intervention. In this study, we evaluated the ACE2 inhibitory effects of 10 essential oils. Among them, geranium and lemon oils displayed significant ACE2 inhibitory effects in epithelial cells. In addition, immunoblotting and qPCR analysis also confirmed that geranium and lemon oils possess potent ACE2 inhibitory effects. Furthermore, the gas chromatography-mass spectrometry (GC–MS) analysis displayed 22 compounds in geranium oil and 9 compounds in lemon oil. Citronellol, geraniol, and neryl acetate were the major compounds of geranium oil and limonene that represented major compound of lemon oil. Next, we found that treatment with citronellol and limonene significantly downregulated ACE2 expression in epithelial cells. The results suggest that geranium and lemon essential oils and their derivative compounds are valuable natural anti-viral agents that may contribute to the prevention of the invasion of SARS-CoV-2/COVID-19 into the human body.
7.5K
13 Feb 2021
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