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Topic Review
The Hazards of Skin Glycation and Related Inhibitors
Skin saccharification, a non-enzymatic reaction between proteins, e.g., dermal collagen and naturally occurring reducing sugars, is one of the basic root causes of endogenous skin aging. During the reaction, a series of complicated glycation products produced at different reaction stages and pathways are usually collectively referred to as advanced glycation end products (AGEs). AGEs cause cellular dysfunction through the modification of intracellular molecules and accumulate in tissues with aging. AGEs are also associated with a variety of age-related diseases, such as diabetes, cardiovascular disease, renal failure (uremia), and Alzheimer’s disease. AGEs accumulate in the skin with age and are amplified through exogenous factors, e.g., ultraviolet radiation, resulting in wrinkles, loss of elasticity, dull yellowing, and other skin problems. 
  • 3.4K
  • 24 Nov 2022
Topic Review
Phytoremediation
Phytoremediation is defined as the use of plant species as a means of purifying polluted soil, water, and air. The term derives from the Greek word phyto (“plant”) and the Latin word remedium (“to correct or remove an evil”). Phytoremediation is a more economically feasible and efficient remediation option than other techniques, such as washing, flushing, or solidification.
  • 3.4K
  • 13 Feb 2023
Topic Review
Grinding Media in Ball Mills for Mineral Processing
The ball mill is a rotating cylindrical vessel with grinding media inside, which is responsible for breaking the ore particles. Grinding media play an important role in the comminution of mineral ores in these mills.
  • 3.4K
  • 24 Nov 2023
Topic Review Peer Reviewed
Adult Play with Character Toys
Character toys are toys identifiable by name, personality, and visual traits. They represent specific characters derived from or associated with popular culture. This entry explores adult engagement with character toys, or toy play, through a multidisciplinary lens, emphasizing playability, materiality, affect, creativity, and sociocultural meaning. Drawing on earlier toy research on dolls, action figures, figurines, and soft toys—those with a face and assigned personality—it considers how adults collect, customize, create stories, and critique societal conditions through toys for personal enrichment, identity work, and community formation. The toy play of adults is framed as a legitimate and complex form of self-expression and cultural participation that intersects with object play, creative fandoms, and political resistance.
  • 3.4K
  • 20 Aug 2025
Topic Review
Compressed Hydrogen Tank Applications across Transportation
The transportation sector faces a new paradigm to address the threat of climate change and environmental pollution. The application of hydrogen fuel cells in transportation offers a great possibility to decarbonize an activity sector, which alone is responsible for the largest share of greenhouse gas emissions. This is particularly attractive to sectors with limited low-carbon fuel options, such as aviation and maritime sectors.
  • 3.4K
  • 27 Jul 2022
Topic Review
OES for Atmospheric Plasma Jets
A suitable technique for localized surface treatment of solid materials is an atmospheric pressure plasma jet (APPJ). The properties of the APPJ plasma often depend on small details like the concentration of gaseous impurities what influences the surface kinetics. The simplest and often most useful configuration of the APPJ is presented, characterized by optical emission spectroscopy (OES), and results are discussed in view of various papers. 
  • 3.4K
  • 31 Mar 2021
Topic Review
Induced Polyploidy
Polyploidy means having more than two basic sets of chromosomes. Polyploid plants may be artificially obtained through chemical, physical and biological (2n gametes) methods.
  • 3.4K
  • 09 Apr 2021
Topic Review
Somatic Cell Nuclear Transfer
Somatic cell nuclear transfer (SCNT) is a technique for generating embryos with genomic information identical to that of donor cells. SCNT has presented various insights into the process of de-differentiation by cellular reprogramming.  Now authors are focusing on the challenge of understanding the potential of pluripotent stem cells and the safe use. Moreover, stem cells from livestock have provided many potential to the academic field as well as medical and industrial applications.
  • 3.4K
  • 12 May 2021
Topic Review
Fluorescent Polymers Conspectus
The development of luminescent materials is critical to humankind. The Nobel Prizes awarded in 2008 and 2010 for research on the development of green fluorescent proteins and super-resolved fluorescence imaging are proof of this (2014). Fluorescent probes, smart polymer machines, fluorescent chemosensors, fluorescence molecular thermometers, fluorescent imaging, drug delivery carriers, and other applications make fluorescent polymers (FPs) exciting materials. 
  • 3.4K
  • 22 Mar 2022
Topic Review
Common Agricultural Policy
The Common Agricultural Policy (CAP) is the agricultural policy of the European Union. It implements a system of agricultural subsidies and other programmes. It was introduced in 1962 and has undergone several changes since then to reduce the cost (from 71% of the EU budget in 1984 to 39% in 2013) and to also consider rural development in its aims. It has been criticised on the grounds of its cost, and its environmental and humanitarian impacts.
  • 3.4K
  • 07 Nov 2022
Topic Review
Technologies for Detecting Oxygen Vacancies
A perovskite catalyst combined with various advanced oxidation processes (AOPs) to treat organic wastewater attracted extensive attention. The physical and chemical catalytic properties of perovskite were largely related to oxygen vacancies (OVs). OVs were able to alter the chemical, physical, and electronic properties of materials, so they became one of the most important research subjects. It was usually necessary to observe and analyze the phenomenon caused by OVs; however, due to their low concentration and short existence time, OVs were normally not visible to the naked eye. The relative concentration of OVs ranged from PPM to tens of atomic percent, a condition that was difficult to find a fitting experimental plan to characterize and distinguish OVs. 
  • 3.4K
  • 02 Feb 2023
Topic Review
Poly(Ethylene Terephthalate) Microplastics
The high PET production volume and the waste mismanagement of PET litter make it one of the most polluting plastic material. Its diffusion in marine litter is widely assessed according to public opinion and documented in the literature. The major sources of PET microplastics in the marine environment are bottles and fibers. The role of PET micro/nanoplastics of vector of toxic chemicals, their fate and the negative effects on the environment and human health is still under discussion.
  • 3.3K
  • 27 Apr 2021
Topic Review
Coping Strategies and Prevention of Cyberbullying
Cyberbullying behaviours begin at primary school, so the actions taken by pre-teachers will play a key role in achieving the goals in the 2030 Agenda for Sustainable Development. More specifically, active coping strategies are essential in reducing victimisation. There is great importance of designing and implementing training programmes to prevent and/or reduce cyberbullying as part of student primary school teachers’ education. One promising way of achieving the Sustainable Development Goals in schools is to encourage pre-service teachers to use active strategies to intervene in cyberbullying and to abandon ineffective strategies in their future professional lives. It is important that pre-service teachers’ knowledge of effective coping strategies is enhanced and that any beliefs justifying cyberbullying are deconstructed.
  • 3.3K
  • 31 May 2022
Topic Review
The Application of Food-Grade Emulsions
Briefly, an emulsion is simply a mixture of two (or more) liquids that are otherwise immiscible. The detailed investigation of food-grade emulsions, which possess considerable structural and functional advantages, remains ongoing to enhance people's understanding of these dispersion systems and to expand their application scope. 
  • 3.3K
  • 30 Sep 2022
Topic Review
Sulfonamide
Sulfonamide is a functional group (a part of a molecule) that is the basis of several groups of drugs, which are called sulphonamides, sulfa drugs or sulpha drugs. The original antibacterial sulfonamides are synthetic (nonantibiotic) antimicrobial agents that contain the sulfonamide group. Some sulfonamides are also devoid of antibacterial activity, e.g., the anticonvulsant sultiame. The sulfonylureas and thiazide diuretics are newer drug groups based upon the antibacterial sulfonamides. Allergies to sulfonamides are common. The overall incidence of adverse drug reactions to sulfa antibiotics is approximately 3%, close to penicillin; hence medications containing sulfonamides are prescribed carefully. Sulfonamide drugs were the first broadly effective antibacterials to be used systemically, and paved the way for the antibiotic revolution in medicine.
  • 3.3K
  • 23 Nov 2022
Topic Review
Graphene Oxide and Biological Properties
Desirable carbon allotropes such as graphene oxide (GO) have entered the field with several biomedical applications, owing to their exceptional physicochemical and biological features, including extreme strength, found to be 200 times stronger than steel; remarkable light weight; large surface-to-volume ratio; chemical stability; unparalleled thermal and electrical conductivity; and enhanced cell adhesion, proliferation, and differentiation properties. 
  • 3.3K
  • 11 May 2021
Topic Review
Electric Motor and Battery Faults of Electric Vehicles
Fault detection and diagnosis (FDD) is of utmost importance in ensuring the safety and reliability of electric vehicles (EVs). The EV’s power train and energy storage, namely the electric motor drive and battery system, are critical components that are susceptible to different types of faults. Failure to detect and address these faults in a timely manner can lead to EV malfunctions and potentially catastrophic accidents. In the realm of EV applications, Permanent Magnet Synchronous Motors (PMSMs) and lithium-ion battery packs have garnered significant attention.
  • 3.3K
  • 21 Jul 2023
Topic Review
Fundamental Concepts of Hydrogels
Hydrogels are three-dimensional crosslinked porous networks and can be synthesized from natural polymers, synthetic polymers, polymerizable synthetic monomers, and combination of natural and synthetic polymers. Synthesis of hydrogels involves physical, chemical and hybrid bonding. The bonding is formed via different routes such as solution casting, solution mixing, bulk polymerization, free radical mechanism, radiation method, and interpenetrating network formation. The synthesized hydrogels have significant properties such as mechanical strength, flexibility, biocompatibility, biodegradability, swellability, and stimuli sensitivity. Furthermore, owing to the smart and aqueous medium, robust mechanical strength, adhesiveness, stretchability, strain sensitivity, and self-healability, hydrogels can be potentially used in biomedical, electrochemical, sensors, contact lens, and soft robotic applications.
  • 3.3K
  • 03 Dec 2020
Topic Review
Monkeys in Chinese Culture
Monkeys, particularly macaques and monkey-like gibbons, have played significant roles in Chinese culture for over two thousand years. Some examples familiar to English speakers include the zodiacal Year of the Monkey, the Monkey King Sun Wukong in the novel Journey to the West, and Monkey Kung Fu.
  • 3.3K
  • 25 Nov 2022
Topic Review
Ideal Type
The concept of "ideal type" was introduced by the sociologist Max Weber as a methodological tool to analyze and understand complex social phenomena. An ideal type is an abstract, simplified model constructed by the researcher to highlight essential characteristics of a social phenomenon, allowing for clearer analysis and comparison, despite recognizing that real-world instances may not perfectly align with the constructed model. It serves as an analytical device rather than a precise representation of empirical reality, aiding in the systematic examination of social phenomena.
  • 3.3K
  • 25 Jan 2024
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