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Topic Review
3D-Printed Satellite Brackets
Brackets are the load-bearing components in a satellite. The current age of satellites comprises specific brackets that set out as a link between the bodies of the satellite, reflector parts, and feeder facilities mounted at its upper end. Brackets are used to carry loads of the satellite body frame, supporting elements, batteries, and electronic goods. Additive Manufacturing (AM) is a process in which a 3D solid object is built by adding the material layer-over-layer. The success of making the product using AM technology requires greater experience in Design for Additive Manufacturing (DFAM) which makes use of the design of freedom of AM. Owing to the various advantages of AM and DFAM, it is easy to create high strength-to-weight ratio products. This is an important contribution to aerospace industries in meeting the unabated demand for lightweight and strong structural applications.
  • 2.9K
  • 09 Sep 2022
Topic Review
Bacterial Signal Transduction Systems
Bacteria possess a large number of signal transduction systems that sense and respond to different environmental cues. Most frequently these are transcriptional regulators, two-component systems and chemosensory pathways. A major bottleneck in the field of signal transduction is the lack of information on signal molecules that modulate the activity of the large majority of these systems. 
  • 2.8K
  • 23 Apr 2021
Topic Review
Germanium Ion Implantation and Annealing
Germanium (Ge) ion implantation into silicon waveguides will induce lattice defects in the silicon, which can eventually change the crystal silicon into amorphous silicon and increase the refractive index from 3.48 to 3.96. A subsequent annealing process, either by using an external laser or integrated thermal heaters can partially or completely remove those lattice defects and gradually change the amorphous silicon back into the crystalline form and, therefore, reduce the material’s refractive index.  In addition, Ge ion implantation and annealing are also demonstrated to enable post-fabrication trimming of ring resonators and Mach–Zehnder interferometers and to implement nonvolatile programmable photonic circuits. 
  • 2.8K
  • 01 Mar 2022
Topic Review
Pakistan Institute of Nuclear Science and Technology
Located in Nilore, it maintains a broad portfolio in providing post-graduate and post-doctoral research opportunities in supercomputing, renewable energy, physical, philosophical, materials, environmental, and mathematical sciences. Researchers and scholars are invited from universities throughout Pakistan.
  • 2.8K
  • 20 Nov 2022
Topic Review
Applications of Saponins
Saponins are a diverse group of naturally occurring plant secondary metabolites present in a wide range of foods ranging from grains, pulses, and green leaves to sea creatures. They consist of a hydrophilic sugar moiety linked to a lipophilic aglycone, resulting in an amphiphilic nature and unique functional properties. Their amphiphilic structures enable saponins to exhibit surface-active properties, resulting in stable foams and complexes with various molecules. In the context of food applications, saponins are utilized as natural emulsifiers, foaming agents, and stabilizers. They contribute to texture and stability in food products and have potential health benefits, including cholesterol-lowering and anticancer effects. Saponins possess additional bioactivities that make them valuable in the pharmaceutical industry as anti-inflammatory, antimicrobial, antiviral, and antiparasitic agents to name a few. Saponins can demonstrate cytotoxic activity against cancer cell lines and can also act as adjuvants, enhancing the immune response to vaccines. 
  • 2.8K
  • 11 Sep 2023
Topic Review
Apple By-Product Valorisation
About 30% of the total production of apples is processed, being juice and cider the main resulting products. Regarding this procedure, a large quantity of apple by-product is generated, which tends to be undervalued, and commonly remains underutilised, landfilled, or incinerated. However, apple by-product is a proven source of bioactive compounds, namely dietary fibre, fatty acids, triterpenes, or polyphenols. Therefore, the application of green technologies should be considered in order to improve the functionality of apple by-product while promoting its use as the raw material of a novel product line. 
  • 2.8K
  • 03 Nov 2022
Topic Review
Lignans
This entry focuses on lignans, a non-flavonoid polyphenolic class found in plant foods for human nutrition, recently studied as potential modulators of the gut-brain axis. In particular, gut bacterial metabolism is able to convert dietary lignans into therapeutically relevant polyphenols (i.e., enterolignans), such as enterolactone and enterodiol. Enterolignans are characterized by various biologic activities, including tissue-specific estrogen receptor activation, together with anti-inflammatory and apoptotic effects. The variability in enterolignans production by the gut microbiota is strictly related to both bioaccessibility and bioavailability of parent lignans through the entire gastrointestinal tract. 
  • 2.8K
  • 06 Jan 2021
Topic Review
LSPR Optical Fiber Sensors
In recent years, the interaction between light and metallic films have been proven to be a highly powerful tool for optical sensing applications. There has been continuous effort to integrate this plasmonic sensing technology using micro and nanofabrication techniques with the optical fiber sensor world, trying to get better, smaller and cost-effective high performance sensing solutions. In this work, we present a review of the latest and more relevant scientific contributions to the optical fiber sensors field using plasmonic materials over the last decade. The combination of optical fiber technology with metallic micro and nanostructures that allow plasmonic interactions have opened a complete new and promising field of study. We review the main advances in the integration of such metallic micro/nanostructures onto the optical fibers, discuss the most promising fabrication techniques and show the new trends in physical, chemical and biological sensing applications.
  • 2.8K
  • 31 May 2021
Topic Review
Resveratrol Production in Yeast Hosts
Resveratrol is a plant secondary metabolite known for its therapeutic applications as an antioxidant, anti-cancer, anti-inflammatory, anti-aging, cardio-protective, and neuroprotective agent. Topical formulas of resveratrol are also used for skin disease management and in cosmetic industries. Due to its importance, high resveratrol production is urgently required. Yeasts were proven to be excellent host candidates for resveratrol production.
  • 2.8K
  • 30 Jul 2021
Topic Review
Internet Challenge
On the internet, a challenge is a genre of videos in which users record themselves performing an action and then dare others to repeat it. They play a role in internet meme culture, with many challenges spreading through such memes. Examples include the ALS Ice Bucket challenge, which went viral in mid-2014 and the TrashTag Challenge which went viral in 2019. An internet challenge is similar to the common children's dare game in which they dare each other to perform an action that one would not normally do. Some challenges/talks predate the internet; some periodically resurface in a somewhat different form. The popularity of internet challenges is explained by people's, especially teenagers', need to gain attention and be liked.
  • 2.8K
  • 21 Nov 2022
Topic Review
Cassiopeia
Cassiopeia, named after the queen in Greek mythology, is a prominent constellation in the northern celestial hemisphere. Known for its distinctive "W" or "M" shape, depending on its orientation in the sky, Cassiopeia is easily recognizable and has been a subject of fascination for astronomers and stargazers throughout history.
  • 2.8K
  • 29 Feb 2024
Topic Review
Biosurfactants Properties
Biosurfactants (BSs) are emerging surface-active molecules with high potential for a wide range of applications in the biomedical and pharmaceutical fields. BSs are extremely attractive due to their significant antimicrobial (against bacteria, fungi and viruses), antiadhesive and biofilm disruptive properties. Their use, either on their own or in combination with other antimicrobial or chemotherapeutic drugs, might pave the way for a future strategy of prevention and counteraction of microbial infections, biofilm formation and proliferation. In addition, BSs have recently attracted the attention of the scientific community as a new potential generation of pharmaceutics to be included in anticancer, immunomodulatory, wound healing, cosmetic and drug delivery agents.
  • 2.8K
  • 11 May 2021
Topic Review
Gas Hydrate Technology
Innovating methods for treating industrial wastewater containing heavy metals frequently incorporate toxicity-reduction technologies to keep up with regulatory requirements. This research reviews the latest advances, benefits, opportunities and drawbacks of several heavy metal removal treatment systems for industrial wastewater in detail. The conventional physicochemical techniques used in heavy metal removal processes with their advantages and limitations are evaluated. A particular focus is given to innovative gas hydrate-based separation of heavy metals from industrial effluent with their comparison, advantages and limitations in the direction of commercialization as well as prospective remedies. Clathrate hydrate-based removal is a potential technology for the treatment of metal-contaminated wastewater. In this research, a complete assessment of the literature is addressed based on removal efficiency, enrichment factor and water recovery, utilizing the gas hydrate approach. It is shown that gas hydrate-based treatment technology may be the way of the future for water management purposes, as the industrial treated water may be utilized for process industries, watering, irrigation and be safe to drink. 
  • 2.8K
  • 15 Apr 2022
Topic Review
Cryptography: From Ancient Secrets to Modern Encryption
This research explores the fascinating history of cryptography from its earliest origins to the modern era of digital encryption. It covers the development of various encryption methods throughout history, including substitution and transposition ciphers, the Enigma machine, and the birth of modern cryptography in the computer age. The research also discusses the breakthroughs in public key cryptography and emerging technologies such as quantum cryptography. Additionally, it highlights the pioneers in the field, including Alan Turing and Claude Shannon, and provides advice for those seeking to become experts in cryptography. Despite ongoing debates over encryption and privacy, cryptography remains an essential tool for protecting sensitive information and ensuring the privacy of individuals and organizations around the world.
  • 2.8K
  • 22 May 2023
Topic Review
Underwater Sensing Technologies and Applications
Currently, a variety of sensing methods based on optics, acoustics, and electromagnetics are widely applied for ocean observation and exploration. Acoustic sensing contains various sonar devices for seafloor mapping, submersible navigation, and underwater object. Optical sensing technologies applied to ocean exploration include underwater imaging for objects inspection, spectrophotometry, and fluorophotometry for environmental parameters monitoring. Technologies of electromagnetics are used for underwater metal detection such as mines and mineral resources, and for underwater inspections of cables and pipelines.
  • 2.8K
  • 13 Dec 2021
Topic Review
Gut Health of Poultry
“Gut health” refers to the physical state and physiological function of the gastrointestinal tract and in the livestock system; this topic is often focused on the complex interacting components of the intestinal system that influence animal growth performance and host-microbial homeostasis.
  • 2.8K
  • 25 Jan 2022
Topic Review
Economic History
Economic history is the academic study of economies or economic events of the past. Research is conducted using a combination of historical methods, statistical methods and the application of economic theory to historical situations and institutions. The field can encompass a wide variety of topics, including equality, finance, technology, labour, and business. It emphasizes historicizing the economy itself, analyzing it as a dynamic force and attempting to provide insights into the way it is structured and conceived. Using both quantitative data and qualitative sources, economic historians emphasize understanding the historical context in which major economic events take place. They often focus on the institutional dynamics of systems of production, labor, and capital, as well as the economy's impact on society, culture, and language. Scholars of the discipline may approach their analysis from the perspective of different schools of economic thought, such as mainstream economics, Marxian economics, the Chicago school of economics, and Keynesian economics. Economic history has several sub-disciplines. Historical methods are commonly applied in financial and business history, which overlap with areas of social history such as demographic and labor history. In the sub-discipline called New Economic History or cliometrics, economists use quantitative (econometric) methods. In history of capitalism, historians explain economic historical issues and processes from a historical point of view.
  • 2.8K
  • 21 Nov 2022
Topic Review
Shared Residential Landscapes
This paper uses the concept of urban commons to develop a conceptual framework to inform the design and management of shared residential landscapes in the UK. The framework is founded on an exploration of the implications of applying the traditional ‘commons’ idea within the urban context. Urban spatial concepts and theories, such as informal urbanism, territory, placekeeping and partnerships, are drawn upon to build these implication into a framework that provides a new urban, spatial and place perspective on the urban commons concept. In addressing the urban implications for commons through spatial theories, four preliminary concepts are developed. These include; 1) the emergent common mindset in a complex-adaptive assemblage, 2) a spatial arrangement that reflects a shared territorial perception of ‘ours’, 3) opportunities for adaption and occupation of space as placemaking and 4) the reorientation of professional roles in delivering urban commons. The framework creates a foundation for further research on the design and long-term management of shared residential landscapes as urban commons to benefit the everyday social lives of residential communities.
  • 2.8K
  • 06 Jun 2021
Topic Review
Mabry Syndrome
Mabry syndrome is a condition characterized by intellectual disability, distinctive facial features, increased levels of an enzyme called alkaline phosphatase in the blood (hyperphosphatasia), and other signs and symptoms.
  • 2.8K
  • 23 Dec 2020
Topic Review
A2 Milk
Although milk consumption is increasing worldwide, in some geographical regions, its consumption has persistently declined. This fact, together with the increase in milk production prices, has caused both milk producers and the dairy industry to be immersed in a major crisis. Some possible solutions to this problem are to get people who do not currently consume milk to start drinking it again, or to market milk and dairy products with a higher added value. In this context, a type of milk called A2 has recently received attention from the industry. This type of milk, characterized by a difference in an amino acid at position 67 of the β-casein polypeptide chain, releases much smaller amounts of bioactive opioid peptide β-casomorphin 7 upon digestion, which has been linked to harmful effects on human health. Additionally, A2 milk has been attributed worse technological properties in the production of some dairy products. Thus, doubts exist about the convenience for the dairy industry to bet on this product. 
  • 2.8K
  • 30 Aug 2022
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