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Topic Review
Chemical Treatment for Textile Waste
Trends in the textile industry show a continuous increase in the production and sale of textile materials, which in turn generates a huge amount of discarded clothing every year. This has a negative impact on the environment, on one side, by consuming resources—some of them non-renewables (to produce synthetic polymers)—and on the other side, by polluting the environment through the emission of GHGs (greenhouse gases), the generation of microplastics, and the release of toxic chemicals in the environment (dyes, chemical reagents, etc.). When natural polymers (e.g., cellulose, protein fibers) are used for the manufacturing of clothes, the negative impact is transferred to soil pollution (e.g., by using pesticides, fertilizers). In addition, for the manufacture of clothes from natural fibers, large amounts of water are consumed for irrigation. According to the European Environment Agency (EEA), the consumption of clothing is expected to increase by 63%, from 62 million tonnes in 2019 to 102 million tonnes in 2030.
  • 2.4K
  • 14 Oct 2022
Topic Review
Denture Stomatitis Pathogenesis and Presentation
Chronic atrophic candidiasis, commonly referred to as denture stomatitis (DS), is the most prevalent multifactorial, chronic inflammatory oral condition amongst denture wearers. It affects edentulous people who wear complete or partial dentures, as well as those who use intraoral removable orthodontic appliances and obturators. DS most commonly involves the palate and is more likely to be observed in patients with acrylic dentures than prostheses fabricated using other materials.
  • 2.4K
  • 20 Feb 2023
Topic Review
Forest Connectivity
Forest connectivity is critical for the long-term persistence and range shifts of forest-dependent species. In the face of contemporary climate change, the climate connectivity of forested areas is one of the most important factors that determine species’ ability to track suitable climate niches. Climate connectivity is defined as the degree to which a landscape allows species to shift their ranges to suitable habitats that are the same or cooler than their current habitats as the climate warms. Improving climate connectivity is both a necessary action and a viable solution to reduce the likelihood of local extinctions and biodiversity loss. This is particularly urgent considering the rapid rate of climate change, which is expected to cause large shifts in the distributions of species in European forests.
  • 2.4K
  • 28 Jul 2021
Topic Review
Sierra Leone
Sierra Leone has an area of 72,325 km2 and is bordered in the northeast by the Republic of Guinea, in the south and southeast by the Republic of Liberia, and in the west by the North Atlantic Ocean. 
  • 2.4K
  • 22 May 2023
Topic Review
Amounts of Caffeoylquinic Acid in Coffee By-Products
Chlorogenic and isochlorogenic acids are naturally occurring antioxidant dietary polyphenolic compounds found in high concentrations in plants, fruits, vegetables, coffee, and coffee by-products. Coffee is particularly cultivated and produced in tropical and subtropical regions along the equator (the so-called “coffee belt”), where ideal growth is possible due to the constantly warm temperatures and humid climate without extreme weather fluctuations.
  • 2.4K
  • 25 Jul 2023
Topic Review
Quinces as Medicinal Fruits of the Rosaceae Family
Quince (Cydonia oblonga, Chaenomeles sp., and Pseuocydonia sinensis) fruits contain carotenoids, vitamins, minerals, carboxylic acids, triterpenes, and bioactive polyphenols. They are rich in antioxidants and chemical compounds that have demonstrated anti-inflammatory, anticancer, anti-allergic, and immunomodulatory effects. Their phytochemicals have been shown to effectively regulate glycemia and improve blood lipid profiles, suggesting potential anti-diabetic and cardioprotective benefits. The fruits of the Cydonia, Chaenomeles, and Pseuocydonia genera are morpholophically similar, which may make them difficult to distinguish.
  • 2.4K
  • 16 Jan 2024
Topic Review
Performance-Enhancing Drugs (PEDs)
Performance-enhancing drugs (PEDs) are substances used to improve athletic ability, endurance, strength, or recovery beyond the body’s natural limits. While some PEDs have legitimate medical applications, their use in competitive sports is controversial due to ethical concerns, health risks, and violations of fair play principles. Anti-doping agencies and sports governing bodies have established strict regulations and testing protocols to detect and deter PED use in both amateur and professional athletics.
  • 2.4K
  • 25 Sep 2025
Topic Review
Metaverse Concept
The global market is experiencing stagnation and recession in the “untact era”, and the emergence of the metaverse provides platform support and presents a new paradigm. The “metaverse” platform services combine 5G network technology, advanced lightweight graphic technology, and cutting-edge display device technology. The emergence of the metaverse platform presents a new global market paradigm in the ongoing recession caused by COVID-19 and has attracted attention as a new growth engine that connects industry and content. The metaverse is not bound by time and space, which is conducive to a contactless era, and provides a virtual experience with a high degree of immersion and connectivity, resulting in increased user value. The metaverse can be based on PCs and mobile devices, and is characterized by access at anytime and anywhere.
  • 2.4K
  • 19 Apr 2022
Topic Review
Removal of Per-and Polyfluoroalkyl Substances by Novel Membranes
Per- and Polyfluoroalkyl Substances (PFAS) are anthropogenic chemicals consisting of thousands of individual species. PFAS consists of a fully or partly fluorinated carbon–fluorine bond, which is hard to break and requires a high amount of energy (536 kJ/mole). Resulting from their unique hydrophobic/oleophobic nature and their chemical and mechanical stability, they are highly resistant to thermal, chemical, and biological degradation. To date, membrane technology is one of the effective process, which can remove PFAS from wastewater. Moreover, there are very few novel membrane approaches have been reported effective in removing and destroying PFAS.
  • 2.4K
  • 08 Jul 2022
Topic Review
Phi Pan Nam Range
The Phi Pan Nam Range, also Pee Pan Nam, (Thai: ทิวเขาผีปันน้ำ) is a 400 km (249 mi) long system of mountain ranges in the eastern half of the Thai highlands. It is mostly in Thailand, although a small section in the northeast is within Sainyabuli and Bokeo Provinces, Laos. In Thailand the range extends mainly across Chiang Rai, Phayao, Lampang, Phrae, Nan, Uttaradit and Sukhothai Provinces, reaching Tak Province at its southwestern end. The population density of the area is relatively low. Only two sizable towns, Phayao and Phrae, are within the area of the mountain system and both have fewer than 20,000 inhabitants each. Larger towns, like Chiang Rai and Uttaradit, are near the limits of the Phi Pan Nam Range, in the north and in the south respectively. Phahonyothin Road, part of the AH2 Highway system, crosses the Phi Pan Nam Range area from north to south, between Tak and Chiang Rai. There are two railway tunnels of the Northern Line across the Phi Pan Nam mountains. Both are on the south side of the range: the 130.2 m Huai Mae Lan Tunnel in Phrae Province and the 362.4 m Khao Phlueng Tunnel in Uttaradit and Phrae Provinces. In the mountains north of Thoeng, at the northeast end of the range, Hmong people live in small villages such as Ban Saen Than Sai and Ban Phaya Phripak, the latter on top of a mountain pass.
  • 2.4K
  • 30 Nov 2022
Topic Review
Isra'iliyyat
In hadith studies, Isra'iliyyat (in Arabic: اسرائیلیات "of the Israelites") are narratives assumed to be of foreign import. Although indicating such stories develop from Jewish sources, narratives designated as Isra'iliyyat might also derive from other religions such as Christianity or Zoroastrianism. Isrā'īlīyāt are especially in modern times critizised as "unislamic", while they had been commonly used in pre-modern times. These narratives appear frequently in Qur'anic commentaries, Sufi narratives and history compilations. They are used to offer more detailed information regarding earlier prophets mentioned in the Bible and the Qur'an, stories about the ancient Israelites, and fables allegedly or actually taken from Jewish sources. Muslim scholars generally classify the narratives of the Isra'iliyyat into three categories:
  • 2.4K
  • 01 Dec 2022
Topic Review
Focke-Wulf Fw 189
The Focke-Wulf Fw 189 Uhu ("Eagle Owl") is a German twin-engine, twin-boom, three-seat tactical reconnaissance and army cooperation aircraft. It first flew in 1938 (Fw 189 V1), entered service in 1940 and was produced until mid-1944. In addition, Focke-Wulf used this airframe in response to a tender request by the RLM for a dedicated ground-attack airplane, and later submitted an armored version for trials. However, the Henschel Hs 129 was selected instead.
  • 2.4K
  • 01 Dec 2022
Topic Review
The Role of Pulmonary Surfactant Phospholipids in Interstitial Lung Diseases
Diffuse parenchymal lung diseases (DPLD) or Interstitial lung diseases (ILD) are a heterogeneous group of lung conditions with common characteristics that can progress to fibrosis. Within this group of pneumonias, idiopathic pulmonary fibrosis (IPF) is considered the most common. This disease has no known cause, is devastating and has no cure.
  • 2.4K
  • 04 Jan 2023
Topic Review
Extreme Learning Machine
In the learning paradigms of artificial neural networks, classical algorithms such as back-propagation aim to approach the theories of biological learning through an iterative adjustment of all the hyper-parameters of the hidden layers for each sequence of data. Therefore, without looking at relearning, in actual problems, the tuning process could take days or months under the use of the available ordinary computers for generalization of the neural network over all of the selected samples. But, the fact that a microprocessor is faster than a brain by about twelve million times, denies that these algorithms are capable of responding to the thought of the human brain which takes less seconds to classify or restore new images or sensations. In 2004, ELM gave birth to new learning rules for artificial neural networks. ELM learning rules remove barriers between human biological thought and artificial neural networks by addressing the fact that: "the parameters of the hidden layer do not need to be adjusted, and the only element responsible for the "universal approximation and generalization are the output weights ". Consequently, ELM has been studied through several applications and extends to a multitude of paradigms such as the ensemble, the hybrid and the deep learning and achieved an excellent reputation. Therefore, The aim of this review will be introducing basic theories of ELM.
  • 2.4K
  • 30 Sep 2021
Topic Review
Laser-Based Powder Bed Fusion
Laser-based powder Bed Fusion (L-PBF), formerly SLM, is one of the seven Additive Manufacturing basic process categories in the new standards. 
  • 2.4K
  • 01 Apr 2021
Topic Review
Astaxanthin as Potential Neurotherapeutic Agent
ASX, a member of the xanthophyll group, was found to be a promising therapeutic anti-inflammatory agent for many neurological disorders, including cerebral ischemia, Parkinson’s disease, Alzheimer’s disease, autism, and neuropathic pain.
  • 2.4K
  • 15 Apr 2021
Topic Review
Shallow Marine Sediments
Geological structure changes, including deformations and ruptures, developed in shallow marine sediments are well recognized but were not systematically reviewed in previous studies. These structures, generally developed at a depth less than 1000 m below seafloor, are considered to play a significant role in the migration, accumulation, and emission of hydrocarbon gases and fluids, and the formation of gas hydrates, and they are also taken as critical factors affecting carbon balance in the marine environment.
  • 2.4K
  • 25 Apr 2021
Topic Review
Bambara Groundnut
Currently, the global agricultural system is focused on a limited number of crop species, thereby presenting a threat to food security and supply, especially with predicted global climate change conditions. The importance of ‘underutilized’ crop species in meeting the world’s demand for food has been duly recognized by research communities, governments and policy makers worldwide. The development of underutilized crops, with their vast genetic resources and beneficial traits, may be a useful step towards solving food security challenges by offering a multifaceted agricultural system that includes additional important food resources. Bambara groundnut is among the beneficial underutilized crop species that may have a positive impact on global food security through organized and well-coordinated multidimensional breeding programs. The excessive degrees of allelic difference in Bambara groundnut germplasm could be exploited in breeding activities to develop new varieties. It is important to match recognized breeding objectives with documented diversity in order to significantly improve breeding. 
  • 2.4K
  • 08 Jun 2021
Topic Review
Blood–Brain Barrier Transport of Transferrin and Insulin
Biologics can be re-engineered for blood-brain barrier (BBB) transport as IgG fusion proteins, where the IgG domain is a monoclonal antibody (MAb) that targets an endogenous BBB transporter, such as the insulin receptor (IR) or transferrin receptor (TfR). The IR and TfR at the BBB transport the receptor-specific MAb in parallel with the transport of the endogenous ligand, insulin or transferrin. 
  • 2.4K
  • 29 Mar 2022
Topic Review
Develop Digital Twins for Subsea Pipelines
Digital twins are described as a paradigm combining multi-physics modelling with data-driven analytics, which are used to mirror the life of its corresponding twin. Realistic virtual models of structural systems are shown to bridge the gap between design and construction and to mirror the real and virtual worlds. The concept of the digital twin has also been used in offshore structures as platforms and subsea pipelines throughout the stages of construction and operation life. 
  • 2.4K
  • 01 Jun 2022
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