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Topic Review
Biotics and the Gut Barrier
Increased gut permeability is suggested to be involved in the pathogenesis of a growing number of disorders. The altered intestinal barrier and the subsequent translocation of bacteria or bacterial products into the internal milieu of the human body induce the inflammatory state. Gut microbiota maintains intestinal epithelium integrity. Since dysbiosis contributes to increased gut permeability, the interventions that change the gut microbiota and correct dysbiosis are suggested to also restore intestinal barrier function
  • 2.8K
  • 27 Apr 2022
Topic Review
Jyotisha
Jyotisha (Sanskrit: ज्योतिष, IAST: Jyotiṣa), now the term for traditional Hindu astrology, historically was the branch of knowledge dedicated to the observation of astronomical bodies in order to keep the right time for the Vedic sacrifices. It is one of the six Vedangas, or ancillary science connected with the Vedas that developed . This field of study was concerned with fixing the days and hours of Vedic rituals. Hindu astrology from the 3rd century BCE was greatly influenced by Greek tradition,. But the concept of Vedanga predates Greek contact, and there have also been later independent developments. Hindu astrology as it stands today is inherently a study of karma, which gives it a very different foundation compared to Greek astrology. In addition to this, the predictive techniques such as Dashas (planetary and sign-based time periods), Vargas (harmonic divisions of the horoscope) are not that evolved in Greek astrology.
  • 2.8K
  • 27 Sep 2022
Topic Review
International Adoption
International adoption (also referred to as intercountry adoption or transnational adoption) is a type of adoption in which an individual or couple becomes the legal and permanent parent(s) of a child who is a national of a different country. In general, prospective adoptive parents must meet the legal adoption requirements of their country of residence and those of the country whose nationality the child holds. International adoption is not the same thing as transcultural or interracial adoption. However, the fact is that a family will often become a transcultural or interracial family upon the adoption of a child internationally. The laws of countries vary in their willingness to allow international adoptions. Some countries have established rules and procedures for international adoptions, while other countries expressly forbid it. Various countries, notably many African nations, have extended residency requirements for adoptive parents that, in effect, rule out most international adoptions.
  • 2.8K
  • 15 Nov 2022
Topic Review
"Home Improvement" Cast
Patricia Richardson, who played Jill Taylor, Tim’s wife, was a vital part of the "Home Improvement" cast. Her role as the grounded, supportive wife provided a counterbalance to Tim’s often over-the-top antics. Richardson’s portrayal of Jill was both relatable and endearing, showcasing her ability to blend humor with heartfelt emotion. Her character was pivotal in grounding the show’s more exaggerated elements, and her performance was instrumental in the show’s critical and commercial success.
  • 2.8K
  • 04 Sep 2024
Topic Review
Viral Video
A viral video is a video that becomes popular through a viral process of Internet sharing, typically through video sharing websites such as YouTube as well as social media and email. Viral videos may be serious, and some are deeply emotional, but many more are centered on entertainment and humorous content. They may include televised comedy sketches, such as The Lonely Island's "Lazy Sunday" and "Dick in a Box", Numa Numa videos, The Evolution of Dance, Chocolate Rain on YouTube; and web-only productions such as I Got a Crush... on Obama. Some eyewitness events have also been caught on video and have "gone viral" such as the Battle at Kruger. One commentator called the Kony 2012 video the most viral video in history (about 34,000,000 views in three days and 100,000,000 views in six days), but "Gangnam Style" (2012) received one billion views in five months and was the most viewed video on YouTube from 2012 until "Despacito" (2017).
  • 2.8K
  • 21 Oct 2022
Topic Review
Threat (Computer)
In computer security, a threat is a potential negative action or event facilitated by a vulnerability that results in an unwanted impact to a computer system or application. A threat can be either a negative "intentional" event (i.e. hacking: an individual cracker or a criminal organization) or an "accidental" negative event (e.g. the possibility of a computer malfunctioning, or the possibility of a natural disaster event such as an earthquake, a fire, or a tornado) or otherwise a circumstance, capability, action, or event. This is differentiated from a threat actor who is an individual or group that can perform the threat action, such as exploiting a vulnerability to actualise a negative impact. A more comprehensive definition, tied to an Information assurance point of view, can be found in "Federal Information Processing Standards (FIPS) 200, Minimum Security Requirements for Federal Information and Information Systems" by NIST of United States Any circumstance or event with the potential to adversely impact organizational operations (including mission, functions, image, or reputation), organizational assets, or individuals through an information system via unauthorized access, destruction, disclosure, modification of information, and/or denial of service. Also, the potential for a threat-source to successfully exploit a particular information system vulnerability. National Information Assurance Glossary defines threat as: Any circumstance or event with the potential to adversely impact an IS through unauthorized access, destruction, disclosure, modification of data, and/or denial of service. ENISA gives a similar definition: Any circumstance or event with the potential to adversely impact an asset [G.3] through unauthorized access, destruction, disclosure, modification of data, and/or denial of service. The Open Group defines threat as: Anything that is capable of acting in a manner resulting in harm to an asset and/or organization; for example, acts of God (weather, geological events,etc.); malicious actors; errors; failures. Factor analysis of information risk defines threat as: threats are anything (e.g., object, substance, human, etc.) that are capable of acting against an asset in a manner that can result in harm. A tornado is a threat, as is a flood, as is a hacker. The key consideration is that threats apply the force (water, wind, exploit code, etc.) against an asset that can cause a loss event to occur. National Information Assurance Training and Education Center gives a more articulated definition of threat: The means through which the ability or intent of a threat agent to adversely affect an automated system, facility, or operation can be manifest. Categorize and classify threats as follows: Categories Classes Human Intentional Unintentional Environmental Natural Fabricated 2. Any circumstance or event with the potential to cause harm to a system in the form of destruction, disclosure, modification or data, and/or denial of service. 3. Any circumstance or event with the potential to cause harm to the ADP system or activity in the form of destruction, disclosure, and modification of data, or denial of service. A threat is a potential for harm. The presence of a threat does not mean that it will necessarily cause actual harm. Threats exist because of the very existence of the system or activity and not because of any specific weakness. For example, the threat of fire exists at all facilities regardless of the amount of fire protection available. 4. Types of computer systems related adverse events (i. e. , perils) that may result in losses. Examples are flooding, sabotage and fraud. 5. An assertion primarily concerning entities of the external environment (agents); we say that an agent (or class of agents) poses a threat to one or more assets; we write: T(e;i) where: e is an external entity; i is an internal entity or an empty set. 6. An undesirable occurrence that might be anticipated but is not the result of a conscious act or decision. In threat analysis, a threat is defined as an ordered pair, <peril; asset category>, suggesting the nature of these occurrences but not the details (details are specific to events). 7. The potential violation of security. 8. A set of properties of a specific external entity (which may be either an individual or class of entities) that, in union with a set of properties of a specific internal entity, implies a risk (according to a body of knowledge).
  • 2.8K
  • 02 Nov 2022
Topic Review
Contaminations in Ion-Adsorption Type Rare Earths Tailings
Rare earth elements, particularly middle and heavy rare earth, are among the most valuable resources in the pursuit of a greener economy. The production of middle and heavy rare earth elements heavily relies on ion adsorption, which constitutes over 80% of global output and is centered in southern China. Unfortunately, the extensive mining activities have led to severe environmental pollution, resource depletion, and risks to human health.
  • 2.8K
  • 16 May 2023
Topic Review
Távora Affair
The Távora affair was a political scandal of the 18th century Portuguese court. The events triggered by the attempted assassination of King Joseph I of Portugal in 1758 ended with the public execution of the entire Távora family and its closest relatives in 1759. Some historians interpret the whole affair as an attempt by the prime minister Sebastião de Melo (later Marquis of Pombal) to limit the growing powers of the old aristocratic families.
  • 2.8K
  • 19 Oct 2022
Topic Review
Methods to Synthesize Ultrasmall AuNPs
Gold nanoparticles (AuNPs) are continuing to gain popularity in the field of nanotechnology. New methods are continuously being developed to tune the particles’ physicochemical properties, resulting in control over their biological fate and applicability to in vivo diagnostics and therapy. The common methods of synthesizing ultrasmall AuNPs are presented.
  • 2.8K
  • 09 Aug 2022
Topic Review
Radioactive Waste Containing Graphite Management
Since the beginning of the nuclear industry, graphite has been widely used as a moderator and reflector of neutrons in nuclear power reactors. Some reactors are relatively old and have already been shut down. As a result, a large amount of irradiated graphite has been generated. Although several thousand papers in the International Nuclear Information Service (INIS) database have discussed the management of radioactive waste containing graphite, knowledge of this problem is not common.
  • 2.8K
  • 17 Sep 2020
Topic Review
Conducting Poly(Methyl Methacrylate) (PMMA)
Poly(methyl methacrylate), PMMA is a lightweight insulating material that is known for its high Young's Modulus and good optical transmittance properties. Benefiting from these properties, there are recently vast interests to produce conducting PMMA for various applications including electronics, corrosion protective coatings,  diodes, sensors, and many more. Conducting PMMA is possible to produce by incorporating conducting polymers such as  polyaniline (PANi) by physical blending method or by co-polymerization technique. PANi has been the main choice to incorporate with PMMA due to its good conductivity, better environmental stability, and good redox reversibility. In addition, the limitations of PANi include poor adhesion, low mechanical stability and, limited solubility in most organic solvents can be surpassed by blending or co-polymerizing with thermoplastics such as PMMA.
  • 2.8K
  • 30 Jun 2021
Topic Review
Almond Allergens
Tree nuts are considered an important food in healthy diets. However, for part of the world’s population, they are one of the most common sources of food allergens causing acute allergic reactions that can become life-threatening. They are part of the Big Eight food groups which are responsible for more than 90% of food allergy cases in the United States, and within this group, almond allergies are persistent and normally severe and life-threatening. Almond is generally consumed raw, toasted or as an integral part of other foods. Its dietary consumption is generally associated with a reduced risk of cardiovascular diseases. Several almond proteins have been recognized as allergens. Six of them, namely Pru du 3, Pru du 4, Pru du 5, Pru du 6, Pru du 8 and Pru du 10, have been included in the WHO-IUIS list of allergens. Nevertheless, further studies are needed in relation to the accurate characterization of the already known almond allergens or putative ones and in relation to the IgE-binding properties of these allergens to avoid misidentifications.
  • 2.8K
  • 30 Sep 2021
Topic Review Peer Reviewed
Behavior Mapping and Its Application in Smart Social Spaces
Behavior mapping is the systematic observation of people using their environments. The Smart Social Spaces research project, recently completed in Sydney, Australia, is used as a vehicle to illustrate the usefulness of this method for understanding the relationships between people and public spaces in cities. Behavior mapping was the central method used to establish what impact the inclusion of smart technology and street furniture had on people’s use of two public spaces. Using this method, it is possible to record real-time patterns of people’s use of public space, enabling local authorities to better support the social use of public space and the management of its infrastructure.
  • 2.8K
  • 29 Jan 2024
Topic Review
Applications of Online UV-Vis Spectrophotometer for Drinking Water
Water quality monitoring is an essential component of water quality management for water utilities for managing the drinking water supply. Online UV-Vis spectrophotometers are becoming popular choices for online water quality monitoring and process control, as they are reagent free, do not require sample pre-treatments and can provide continuous measurements. The advantages of the online UV-Vis sensors are that they can capture events and allow quicker responses to water quality changes compared to conventional water quality monitoring.
  • 2.8K
  • 24 Apr 2022
Topic Review
Practical Methods for Liver Biology
Molecular and cellular research modalities for the study of liver pathologies have been tremendously improved over the recent decades. Advanced technologies offer novel opportunities to establish cell isolation techniques with excellent purity, paving the path for 2D and 3D microscopy and high-throughput assays (e.g., bulk or single-cell RNA sequencing). The use of stem cell and organoid research will help to decipher the pathophysiology of liver diseases and the interaction between various parenchymal and non-parenchymal liver cells. Furthermore, sophisticated animal models of liver disease allow for the in vivo assessment of fibrogenesis, portal hypertension and hepatocellular carcinoma (HCC) and for the preclinical testing of therapeutic strategies.
  • 2.8K
  • 01 Nov 2020
Topic Review
Lithium Recovery from Lithium-Ion Battery
Lithium-ion batteries are becoming an integral part of renewable-based energy systems that helps to provide an efficient and greener solution for energy storage. LIBs have found their use in a variety of applications ranging from portable electronic devices to energy grid systems. Owing to the reduction in carbon dioxide emission and improved energy to fuel weight ratio, LIBs have also been widely used in electronic vehicles. LIBs have been especially desirable in this case due to their high charge to mass potential in comparison to other battery types. In the recent decade, the extensive use of LIBs has posed not only a great threat to the world’s lithium resource depletion but also the prevailing problem concerning the consumed and non-recycled LIBs. Hence, immediate attention to alleviate any danger to the ecosystems due to the release of harmful chemicals is required. 
  • 2.8K
  • 12 Apr 2022
Topic Review
Indefinite Lifespan
Indefinite lifespan (also known as indefinite life extension or bio-indefinite) is a term used in the life extension movement and transhumanism to refer to the hypothetical longevity of humans (and other life-forms) under conditions in which ageing is effectively and completely prevented and treated. Their lifespans would be "indefinite" (that is, they would not be "immortal"), because protection from the effects of aging on health does not guarantee survival. Such individuals would still be susceptible to death by disease, starvation, accidents, or deliberate killing, but not death from aging. Semantically, "indefinite lifespan" is more accurate than "immortality" which, especially in religious contexts, implies an inability to die.
  • 2.8K
  • 26 Oct 2022
Topic Review
Methods for Obtaining Titanium and Its Alloys
Titanium and its alloys are widely employed in the aerospace industry, and their use will increase in the future. Titanium is mainly produced by the Kroll method, but this is expensive and energy-intensive. Therefore, the research of efficient and sustainable methods for its production has become relevant. 
  • 2.8K
  • 05 Jan 2024
Topic Review
Solid Electrolytes in Solid-State Battery Technology
The evolution of energy storage technologies has been pivotal in advancing contemporary technological capabilities, significantly contributing to the development of sustainable energy systems. Historically, energy storage has undergone various phases of innovation, each enhancing the efficiency, safety, and environmental impact. A notable transition is occurring towards solid-state energy storage, exemplified by the development and implementation of solid-state batteries (SSBs). This shift is driven by two main factors: the recognition of the limitations in traditional energy storage systems, particularly those using liquid electrolytes, like in lithium-ion batteries (LE-LIBs), and substantial progress in materials science, introducing novel materials and fabrication techniques vital for solid-state energy storage systems
  • 2.8K
  • 24 Jan 2024
Topic Review
Types of Artificial Neural Networks
The well-known artificial neural networks (ANNs) are nearly as old as Artificial Intelligence, and they represent a tool, or a model, rather than a method by which to implement AI in autonomous systems. The growing interest in Artificial Intelligence is pervading several domains of technology and robotics research. Only recently has the space community started to investigate deep learning methods and artificial neural networks for space systems. The applications of artificial neural networks to system identification, control synthesis and optical navigation are reviewed and compared using quantitative and qualitative metrics. 
  • 2.8K
  • 27 Sep 2022
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