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Topic Review
Current Applications of Membrane Bioreactors
A membrane bioreactor (MBR) can be described as a chamber designed for a biochemical transformation combined with a membrane separation process. The membrane can be used for different purposes inside the bioreactor, such as the addition of a reactant or the selective removal of one of the reaction products. Moreover, membranes can be utilized to retain the biocatalyst or act as the support for the biocatalyst or for the separation of enzymes by size exclusion.
  • 4.9K
  • 21 Oct 2020
Topic Review
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) mineral particles or rock fragments. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface, as seen in Bowen's reaction series. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Fine-grained aquifers, such as sandstones, are better able to filter out pollutants from the surface than are rocks with cracks and crevices, such as limestone or other rocks fractured by seismic activity. Quartz-bearing sandstone can be converted into quartzite through metamorphism, usually related to tectonic compression within orogenic belts.
  • 4.9K
  • 15 Nov 2022
Topic Review
Edible Mushrooms
Edible mushrooms are considered an important next-generation healthy food source. Edible mushrooms are rich in proteins, dietary fiber, vitamins, minerals, and other bioactive components (alkaloids, lactones, polysaccharides, polyphenolic compounds, sesquiterpenes, sterols, and terpenoids). 
  • 4.9K
  • 06 Dec 2022
Topic Review
Central Nervous System in Autism Spectrum Disorder
Autism spectrum disorder (ASD) is a heterogeneous, behaviorally defined, neurodevelopmental disorder that has been modeled as a brain-based disease.
  • 4.9K
  • 20 Jan 2022
Topic Review
Irreligion in India
Atheism and agnosticism have a long history in India and flourished within the Śramaṇa movement. Indian religions like Jainism, Hinduism and Buddhism consider atheism to be acceptable. India has produced some notable atheist politicians and social reformers. According to the 2011 Census of India, 99.76% of Indians identified with a religion while 0.24% did not state their religious identity. According to the 2012 WIN-Gallup Global Index of Religion and Atheism report, 81% of Indians were religious, 13% were non-religious, 3% were convinced atheists, and 3% were unsure or did not respond.
  • 4.9K
  • 09 Oct 2022
Topic Review
Water-Gas Shift Reaction
The water-gas shift reaction (WGSR) describes the reaction of carbon monoxide and water vapor to form carbon dioxide and hydrogen: The water gas shift reaction was discovered by Italian physicist Felice Fontana in 1780. It was not until much later that the industrial value of this reaction was realized. Before the early 20th century, hydrogen was obtained by reacting steam under high pressure with iron to produce iron, iron oxide and hydrogen. With the development of industrial processes that required hydrogen, such as the Haber–Bosch ammonia synthesis, a less expensive and more efficient method of hydrogen production was needed. As a resolution to this problem, the WGSR was combined with the gasification of coal to produce a pure hydrogen product. As the idea of hydrogen economy gains popularity, the focus on hydrogen as a replacement fuel source for hydrocarbons is increasing.
  • 4.9K
  • 22 Nov 2022
Topic Review
Ascorbic Acid-Mediated Reactions
Ascorbic acid is a vitamin found in different types of food. It has tremendous medical applications in several different fields such as in pharmaceuticals, cosmetics, and in organic synthesis. 
  • 4.9K
  • 25 Nov 2020
Topic Review
DNA Excision Repairs and Implication
The physiological impact of the aberrant oxidation products on genomic DNA were demonstrated by embryonic lethality or the cancer susceptibility and/or neurological symptoms of  animal impaired in the base excision repair (BER); the major pathway to maintain genomic integrity against non-bulky DNA oxidation. However, growing evidence suggests that other DNA repair pathways or factors that are not primarily associated with the classical BER pathway are also actively involved in the mitigation of oxidative assaults on the genomic DNA, according to the corresponding types of DNA oxidation. Among others, factors dedicated to lesion recognition in the nucleotide excision repair (NER) pathway have been shown to play eminent roles in the process of lesion recognition and stimulation of the enzyme activity of some sets of BER factors. Besides, substantial bulky DNA oxidation can be preferentially removed by a canonical NER mechanism; therefore, loss of function in the NER pathway shares common features arising from BER defects, including cancer predisposition and neurological disorders, although NER defects generally are nonlethal.
  • 4.9K
  • 30 Oct 2020
Topic Review
Crowd Sensing
Crowd sensing (also known as participatory sensing, or mobile crowdsensing) is a means of collecting people’s surrounding information via mobile sensing devices. Its highly expressive and powerful sensing capabilities can carry out a big sensing project by fragmenting tasks into small pieces. The key to success is to get more participants to collect higher quality data. 
  • 4.9K
  • 28 Oct 2020
Topic Review
Domestic Violence
Domestic violence (also called domestic abuse or family violence) is violence or other abuse that occurs in a domestic setting, such as in a marriage or cohabitation. Domestic violence is often used as a synonym for intimate partner violence, which is committed by one of the people in an intimate relationship against the other person, and can take place in relationships or between former spouses or partners. In its broadest sense, domestic violence also involves violence against children, parents, or the elderly. It can assume multiple forms, including physical, verbal, emotional, economic, religious, reproductive, or sexual abuse. It can range from subtle, coercive forms to marital rape and other violent physical abuse, such as choking, beating, female genital mutilation, and acid throwing that may result in disfigurement or death, and includes the use of technology to harass, control, monitor, stalk or hack. Domestic murder includes stoning, bride burning, honor killing, and dowry death, which sometimes involves non-cohabitating family members. Globally, the victims of domestic violence are overwhelmingly women, and women tend to experience more severe forms of violence. They are also likelier than men to use intimate partner violence in self-defense. In some countries, domestic violence may be seen as justified or legally permitted, particularly in cases of actual or suspected infidelity on the part of the woman. Research has established that there exists a direct and significant correlation between a country's level of gender equality and rates of domestic violence, where countries with less gender equality experience higher rates of domestic violence. Domestic violence is among the most underreported crimes worldwide for both men and women. In addition, due to social stigmas regarding male victimization, men who are victims of domestic violence face an increased likelihood of being overlooked by healthcare providers. Domestic violence often occurs when the abuser believes that they are entitled to it, or that it is acceptable, justified, or unlikely to be reported. It may produce an intergenerational cycle of violence in children and other family members, who may feel that such violence is acceptable or condoned. Many people do not recognize themselves as abusers or victims, because they may consider their experiences as family conflicts that had gotten out of control. Awareness, perception, definition and documentation of domestic violence differs widely from country to country. Additionally, domestic violence often happens in the context of forced or child marriages. In abusive relationships, there may be a cycle of abuse during which tensions rise and an act of violence is committed, followed by a period of reconciliation and calm. The victims may be trapped in domestically violent situations through isolation, power and control, traumatic bonding to the abuser, cultural acceptance, lack of financial resources, fear, and shame, or to protect children. As a result of abuse, victims may experience physical disabilities, dysregulated aggression, chronic health problems, mental illness, limited finances, and a poor ability to create healthy relationships. Victims may experience severe psychological disorders, such as post-traumatic stress disorder (PTSD). Children who live in a household with violence often show psychological problems from an early age, such as avoidance, hypervigilance to threats and dysregulated aggression, which may contribute to vicarious traumatization.
  • 4.9K
  • 21 Oct 2022
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