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Topic Review
Audio-Based Hazard Detection for Construction Safety
Safety-critical sounds at job sites play an essential role in construction safety, but hearing capability is often declined due to the use of hearing protection and the complicated nature of construction noise. Thus, preserving or augmenting the auditory situational awareness of construction workers has become a critical need. 
  • 1.6K
  • 06 Dec 2022
Topic Review
Lactate-Mediated Signaling in the Brain
Lactate is a universal metabolite produced and released by all cells in the body. Traditionally it was viewed as energy currency that is generated from pyruvate at the end of the glycolytic pathway and sent into the extracellular space for other cells to take up and consume. In the brain, such a mechanism was postulated to operate between astrocytes and neurons many years ago. 
  • 1.6K
  • 13 Jan 2023
Topic Review
Polyphenols in Diet and Their Biological Significance
Polyphenols are vital phytonutrients of plant origin that can be incorporated as functional ingredients in foods to offer an effective natural therapy against obesity. There have been efforts to discover alternative obesity treatments from dietary polyphenols.
  • 1.6K
  • 15 Feb 2023
Topic Review
Antioxidant Potential of Glutathione and Crosstalk with Phytohormones
Glutathione (GSH) is an abundant tripeptide that can enhance plant tolerance to biotic and abiotic stress. Its main role is to counter free radicals and detoxify reactive oxygen species (ROS) generated in cells under unfavorable conditions. Moreover, along with other second messengers (such as ROS, calcium, nitric oxide, cyclic nucleotides, etc.), GSH also acts as a cellular signal involved in stress signal pathways in plants, directly or along with the glutaredoxin and thioredoxin systems.
  • 1.6K
  • 07 Apr 2023
Topic Review Peer Reviewed
Supporting Doctoral Candidates through Completion and Final Examination
Completion and final examination comprise the final stages of a doctoral program and represent the culmination of the doctoral candidates’ years of research. In this entry, completion is defined as the writing and submission of a doctoral thesis, and final examination is defined as the viva voce. Over the years, the format and scope of doctoral degrees has expanded and a variety of formats are now offered. In addition to the traditional research-only doctoral degree, professional, practice-based, and new route programs also contain a taught element alongside research. However, the creation of a substantive thesis or practice-based alternative addressing a novel research question is common to all. In contrast, processes and formats of viva voces vary across the globe. These range from private, closed-door defenses to assessed or ritualistic public defense presentations. For both completion and final examination, there are many practical and psychological hurdles that need to be navigated in order for the candidate to attain their doctoral degree. This entry will highlight these aspects as well as provide evidence-based guidance for supervisors in supporting their doctoral candidates through these daunting final stages.
  • 1.6K
  • 14 Mar 2025
Topic Review
Physical and Chemical Modification for Hemodialysis Membranes
Despite significant research efforts, hemodialysis patients have poor survival rates and low quality of life. Ultrafiltration (UF) membranes are the core of hemodialysis treatment, acting as a barrier for metabolic waste removal and supplying vital nutrients. So, developing a durable and suitable membrane that may be employed for therapeutic purposes is crucial. Surface modificationis a useful solution to boostmembrane characteristics like roughness, charge neutrality, wettability, hemocompatibility, and functionality, which are important in dialysis efficiency. The modification techniques can be classified as follows: (i) physical modification techniques (thermal treatment, polishing and grinding, blending, and coating), (ii) chemical modification (chemical methods, ozone treatment, ultraviolet-induced grafting, plasma treatment, high energy radiation, and enzymatic treatment); and (iii) combination methods (physicochemical). Despite the fact that each strategy has its own set of benefits and drawbacks, all of these methods yielded noteworthy outcomes, even if quantifying the enhanced performance is difficult. A hemodialysis membrane with outstanding hydrophilicity and hemocompatibility can be achieved by employing the right surface modification and immobilization technique. Modified membranes pave the way for more advancement in hemodialysis membrane hemocompatibility.
  • 1.6K
  • 09 Nov 2022
Topic Review
Plants in Response to Waterlogging Stress
With the frequent occurrence of extreme weather such as typhoons and rainstorms, waterlogging has become one of the most important threats to global crop growth and production. Waterlogging limits plants’ access to oxygen and light, leading to disadvantageous changes in metabolism to disturb plant growth and development. To escape the damage of hypoxia or promote the diffusion of oxygen to submerged organs, plants respond to waterlogging stress by regulating their morphological structure, photosynthesis, respiration, energy metabolism, and endogenous plant hormone biosynthesis/signal transduction. The adventitious roots (AR), aerenchyma, and stem internode are the major target structure for waterlogging adaptation. 
  • 1.6K
  • 27 Oct 2023
Topic Review
Radiomics
Radiomics is a new frontier of medicine based on the extraction of quantitative features (named radiomic features) from radiological images that cannot be seen by radiologist’s naked eye and on the use of these data for the creation of clinical decision support systems.
  • 1.6K
  • 18 Mar 2021
Topic Review
Antioxidants and Carbon-Based Electrodes
Antioxidants are compounds that prevent or delay the oxidation process, acting at a much smaller concentration, in comparison to that of the preserved substrate. Primary antioxidants act as scavenging or chain breaking antioxidants, delaying initiation or interrupting propagation step. Secondary antioxidants quench singlet oxygen, decompose peroxides in non-radical species, chelate prooxidative metal ions, inhibit oxidative enzymes. Based on antioxidants’ reactivity, four lines of defense have been described: Preventative antioxidants, radical scavengers, repair antioxidants, and antioxidants relying on adaptation mechanisms. Carbon-based electrodes are largely employed in electroanalysis given their special features, that encompass large surface area, high electroconductivity, chemical stability, nanostructuring possibilities, facility of manufacturing at low cost, and easiness of surface modification. Largely employed methods encompass voltammetry, amperometry, biamperometry and potentiometry. Determination of key endogenous and exogenous individual antioxidants, as well as of antioxidant activity and its main contributors relied on unmodified or modified carbon electrodes, whose analytical parameters are detailed. Recent advances based on modifications with carbon-nanotubes or the use of hybrid nanocomposite materials are described. Large effective surface area, increased mass transport, electrocatalytical effects, improved sensitivity, and low detection limits in the nanomolar range were reported, with applications validated in complex media such as foodstuffs and biological samples.
  • 1.6K
  • 12 Apr 2021
Topic Review
CRM for Additive Manufacturing
The term “critical raw materials” (CRMs) refers to various metals and nonmetals that are crucial to Europe’s economic progress. Modern technologies enabling effective use and recyclability of CRMs are in critical demand for the EU industries. The use of CRMs, especially in the fields of biomedicine, aerospace, electric vehicles, and energy applications, is almost irreplaceable. Additive manufacturing (also referred to as 3D printing) is one of the key enabling technologies in the field of manufacturing which underpins the Fourth Industrial Revolution. 3D printing not only suppresses waste but also provides an efficient buy-to-fly ratio and possesses the potential to entirely change supply and distribution chains, significantly reducing costs and revolutionizing all logistics. This review provides comprehensive new insights into CRM-containing materials processed by modern additive manufacturing techniques and outlines the potential for increasing the efficiency of CRMs utilization and reducing the dependence on CRMs through wider industrial incorporation of AM and specifics of powder bed AM methods making them prime candidates for such developments.
  • 1.6K
  • 05 May 2021
Topic Review
Plant Secondary Metabolites as Biopesticides
Plant extracts and pure plant-derived substances with promising biological activity and the potential to be used as biopesticides for stored products. The main aim of biopesticides is to be effective against target pests, without harming humans and the environment. 
  • 1.6K
  • 08 Nov 2021
Topic Review
Airports and Regional Economy in China
China is the second largest aviation country in the world. The Chinese aviation industry and economy both developed quickly in the last two decades. However, the interaction mechanisms of aviation and the regional economy were different in each province. Jiangsu was the most important province in the Yangtze River delta region. The GDP of Jiangsu ranked second in China, but air transportation didn't have the same leading position in the last decade.
  • 1.6K
  • 22 Apr 2022
Topic Review
Forensic Identification
Forensic identification is the application of forensic science, or "forensics", and technology to identify specific objects from the trace evidence they leave, often at a crime scene or the scene of an accident. Forensic means "for the courts".
  • 1.6K
  • 25 Oct 2022
Topic Review
Dell EMC ScaleIO
Dell EMC PowerFlex (previously known as ScaleIO and VxFlex OS), is a commercial software-defined storage product from Dell EMC that creates a server-based storage area network (SAN) from local server storage using x86 servers. It converts this direct-attached storage into shared block storage than runs over an IP-based network. PowerFlex can scale from three compute/storage nodes to over 1,000 nodes that can drive up to 240 million IOPS of performance. PowerFlex is bundled with Dell EMC commodity computing servers (officially called VxFlex Ready Nodes, PowerFlex appliance, and PowerFlex rack). PowerFlex can be deployed as storage only or as a converged infrastructure combining storage, computational and networking resources into a single block. Capacity and performance of all available resources are aggregated and made available to every participating PowerFlex server and application. Storage tiers can be created with media types and drive types that match the ideal performance or capacity characteristics to best suit the application needs.
  • 1.6K
  • 01 Nov 2022
Topic Review
Young Employees’ Perceptions about Employability Skills for E-Commerce
With the digital transformation of businesses, digital marketing has been a prominent feature of organizations in the 21st century. Changing consumer behavior has also created a need for versatile hard and soft skills for marketing professionals. Given the dynamic growth of the e-commerce market and the trends mentioned above, it is expected that the needs of the labor market will also change. University education aims to develop key competences. Understanding which competences are considered important could improve the motivation of students. 
  • 1.6K
  • 19 Dec 2022
Topic Review
Self-Healing Energetic Composite Materials
Energetic composite materials (ECMs) are the basic materials of polymer binder explosives and composite solid propellants, which are mainly composed of explosive crystals and binders. During the manufacturing, storage and use of ECMs, the bonding surface is prone to micro/fine cracks or defects caused by external stimuli such as temperature, humidity and impact, affecting the safety and service of ECMs. Therefore, substantial efforts have been devoted to designing suitable self-healing binders aimed at repairing cracks/defects.
  • 1.6K
  • 19 Jan 2023
Topic Review
Influence of 3D Printing Parameters on FFF Prints
The advancement in 3D printing techniques has raised the hope to use additively manufactured parts as final products in various industries. Due to the layer-by-layer nature of AM parts, they are highly susceptible to failure when they are subjected to fatigue loading. This entry provides a detailed account of the influence of 3D printing parameters on the fatigue properties of parts manufactured by fused filament fabrication (FFF). Existing standards for fatigue testing of polymers and their limitation for 3D-printed parts are discussed. In addition, the cyclic behaviour of polymers is reviewed, and the impact of 3D printing parameters on the mechanical behaviour of FFF parts under tensile, compressive, flexural, and bending fatigue is investigated according to the published results in the literature. Finally, a summary of the works undertaken and suggestions for future research are provided. The influence of 3D printing parameters on the fatigue performance of prints can be different from that seen in the case of static loading and strongly depends on the fatigue loading type. While cross-over infill patterns, higher infill density, and higher layer height favour achieving higher fatigue strength in all loading types, raster orientation is best to be aligned parallel to the tensile loads and perpendicular to the compressive, flexural, and bending forces. In the case of tensile and flexural loading, Y build orientation yields the best result. Finally, print velocity was found to be less significant compared to other parameters, implying that it can be set at high values for faster printing.
  • 1.6K
  • 10 Feb 2023
Topic Review
SAPO-34 Zeolite Membranes
In the zeolite family, the silicoaluminophosphate (SAPO)-34 zeolite has a unique chemical structure, distinctive pore size, adsorption characteristics, as well as chemical and thermal stability, has attracted much research attention. Increasing global carbon dioxide (CO2) emissions pose a serious environmental threat to humans, animals, plants, and the entire environment.
  • 1.6K
  • 20 Mar 2023
Topic Review
Metallic FexGeTe2 (3 ≤ x ≤ 7) Ferromagnets
Thermal fluctuations in two-dimensional (2D) isotropy systems at non-zero finite temperatures can destroy the long-range (LR) magnetic order due to the mechanisms addressed in the Mermin-Wanger theory. However, the magnetic anisotropy related to spin–orbit coupling (SOC) may stabilize magnetic order in 2D systems. 2D FexGeTe2 (3 ≤ x ≤ 7) with a high Curie temperature (TC) has not only undergone significant developments in terms of synthetic methods and the control of ferromagnetism (FM), but is also being actively explored for applications in various devices. 
  • 1.6K
  • 13 Nov 2023
Topic Review
16S rRNA Sequencing vs. Metagenome Sequencing
Microbiome research has revolutionized our understanding of complex microbial communities, and two pivotal techniques at the forefront of this exploration are 16S rRNA sequencing and metagenome sequencing.
  • 1.6K
  • 31 Oct 2024
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