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Topic Review
NdFeB Permanent Magnet Uses
Rare earth element (REE) permanent magnets (NdFeB) are a critical element in a vast and growing number of industrial applications. In consumer electronics, a broad category encompassing computer, CD, and DVD hard drives, in addition to the ubiquitous cell phones, the nominal NdFeB magnet content may be small, but the global market share for this sector accounts for almost 30% of NdFeB demand, due to a large and continually increasing consumer base. It is estimated that wind turbines that primarily employ permanent magnets will add roughly 110 GW annually of on- and off-shore capability over the next few years. Electric vehicles (EVs) and E-bicycles (EBs) equipped with permanent magnet motors comprise the transportation contribution. Permanent magnet motors have garnered nearly 100% of the market share among EV manufacturers worldwide. Industrial, professional service, and personal robots, most using permanent magnets, are also included in the projected global need for rare earths, particularly Nd and Dy.
  • 4.1K
  • 16 Oct 2023
Topic Review
Information and Communication Technology
Information and Communication Technology (ICT) is seen as a way to enhance knowledge collection in the construction sector. Although the theoretical benefits of ICT implementation have been clarified, realizing such benefits is insufficient. This paper attempted a systematic analysis of the literature using ATLAS.ti 9 software to save, identify, and analyze this study’s data. A total of 102 articles were actively reviewed, including 82 Scopus journals and 20 conference papers published from 2003 to 2020. In this article, from a construction industry point of view, the ICT adoption process is considered as an interaction between technology, task, and an individual from a construction industry perspective. While ICT is acknowledged as a source of aggressive gain by both practitioners and scholars, ICT’s sole presence would definitely not guarantee achievement in the industry’s ICT approval. Companies cannot grasp the full benefits of ICT, except that users are able to adopt the technology. Hence, the issues related to ICT adoption need to be examined.
  • 4.1K
  • 13 Nov 2020
Biography
Mani Lal Bhaumik
Mani Lal Bhaumik is an Indian-born American physicist and a bestselling author.[1] Bhaumik was born on March 30, 1931 in a small village in Siuri, Medinipore, West Bengal, India and attended the Krishnagang krishi silpa vidyalaya school.[2][3] As a teenager, Bhaumik spent some time with Mahatma Gandhi in his Mahisadal camp. He received a Bachelor of Science degree from Scottish Church College
  • 4.1K
  • 22 Nov 2022
Topic Review
U.S. Almond Exports and Retaliatory Trade Tariffs
U.S. almond exports have market concentration and strong market power in international markets. The efforts toward more sustainable production of almonds to solidify an already established market share in the world almond markets and against substitutes, such as pistachios, seem to be a sound strategy and focus of the U.S. almond agribusinesses and exporters. 
  • 4.1K
  • 28 Jun 2022
Topic Review
Renewable Energy and Energy Storage Systems
The use of fossil fuels has contributed to climate change and global warming, which has led to a growing need for renewable and ecologically friendly alternatives to these. It is accepted that renewable energy sources are the ideal option to substitute fossil fuels in the near future. Significant progress has been made to produce renewable energy sources with acceptable prices at a commercial scale, such as solar, wind, and biomass energies. Hybrid renewable energy systems are needed with good energy management to balance the various renewable energy sources’ production/consumption/storage.
  • 4.1K
  • 14 Feb 2023
Biography
Wilhelm Conrad Röntgen
Wilhelm Conrad Röntgen (1845–1923) was a German physicist best known for his discovery of X-rays in 1895, a groundbreaking advancement in medical imaging and physics that revolutionized both science and medicine. He was the first recipient of the Nobel Prize in Physics in 1901 for this discovery. Röntgen’s contributions laid the foundation for diagnostic radiology and profoundly influenced
  • 4.1K
  • 28 Aug 2025
Topic Review
Gonadotropin-Releasing Hormone
The signals generated by the HPG axis, the main participants of which are gonadotropin-releasing hormone (GnRH), gonadotropins, and sex steroids, coordinate the development and functioning of the immune system, and immunomediators, in particular, cytokines and thymic peptides, influence the HPG axis.
  • 4.1K
  • 08 Jan 2021
Topic Review
3D-Bioprinting for Chronic Wound
Skin substitutes can provide a temporary or permanent treatment option for chronic wounds. The selection of skin substitutes depends on several factors, including the type of wound and its severity. Full-thickness skin grafts (SGs) require a well-vascularised bed and sometimes will lead to contraction and scarring formation. Besides, donor sites for full-thickness skin grafts are very limited if the wound area is big, and it has been proven to have the lowest survival rate compared to thick- and thin-split thickness. Tissue engineering technology has introduced new advanced strategies since the last decades to fabricate the composite scaffold via the 3D-bioprinting approach as a tissue replacement strategy. Considering the current global donor shortage for autologous split-thickness skin graft (ASSG), skin 3D-bioprinting has emerged as a potential alternative to replace the ASSG treatment. The three-dimensional (3D)-bioprinting technique yields scaffold fabrication with the combination of biomaterials and cells to form bioinks. 
  • 4.1K
  • 08 Jan 2022
Topic Review
Lantana camara
Lantana camara L. (Verbenaceae) is native to tropical America and has been introduced into many other countries as an ornamental and hedge plant.
  • 4.1K
  • 04 Jun 2021
Topic Review
Allegory in the Middle Ages
Allegory in the Middle Ages was a vital element in the synthesis of biblical and classical traditions into what would become recognizable as medieval culture. People of the Middle Ages consciously drew from the cultural legacies of the ancient world in shaping their institutions and ideas, and so allegory in medieval literature and medieval art was a prime mover for the synthesis and transformational continuity between the ancient world and the "new" Christian world. People of the Middle Ages did not see the same break between themselves and their classical predecessors that modern observers see; rather, they saw continuity with themselves and the ancient world, using allegory as a synthesizing agent that brings together a whole image.
  • 4.1K
  • 21 Nov 2022
Topic Review
Depression
Depression (also known as major depression or major depressive disorder) is a psychiatric disorder that affects mood, behavior, and overall health. It causes prolonged feelings of sadness, emptiness, or hopelessness, and a loss of interest in activities that were once enjoyed. People with depression may also have changes in appetite (leading to overeating or not eating enough), changes in sleeping patterns (sleeping too much or not being able to sleep), loss of energy, and difficulty concentrating. Although depression is considered primarily a mental health disorder, it can also have physical features including headaches, other unexplained aches and pains, unusually slow or fast movements, and digestive problems. To be diagnosed with depression, an individual must have signs and symptoms nearly every day for at least 2 weeks. However, the features of this condition vary widely.
  • 4.1K
  • 31 Dec 2020
Topic Review
Legal Norms
Legal norms are binding rules, or norms, of conduct that organisations of sovereign power promulgate and enforce in order to regulate social relations. Legal norms determine the rights and duties of individuals who are the subjects of legal relations within the governing jurisdiction at a given point in time. Competent state authority issue and publish basic aspects of legal norms through a collection of laws that individuals under that government must abide to, which is further guaranteed by state coercion. There are two categories of legal norms: normativity, that regulates the conduct of people, and generality, which are binding for the indefinite number of people and cases. Diplomatic and legislative immunity refers to instances where legal norms are constructed to be targeted towards a minority and are specifically only binding for them, such as soldiers and public officials. In a legal sense, retro-activity refers to a law that impairs or invalidates the vested rights of an individual acquired under existing laws by creating new obligations to considerations that have been pre-established. Legal norms can either classify under true retro-activity, where norms influence the legal relations that have existed before its effect, or pseudo retro-activity, referring to how the validity of old legal relations can be influenced by derogated norms. Legal norms become validated from the moment it is published as part of legal order and become in effect from the moment it binds the subjects of the law. The Latin phrase, ‘vacatio legis’ refers to the period of time between a legal norm’s validity and effect. As the validity of a legal norm is limited from the moment of its adoption by legal institutions, a lapse of time can cause its termination. Legal norms can either be terminated by explicit derogation by the competent state authority, or through automatic derogation whereby the authoritative organisation adopts a new normative act that regulates the same relations, effectively replacing the old one.
  • 4.1K
  • 19 Oct 2022
Topic Review
Grazing
Grazing is a method of feeding in which a herbivore feeds on plants such as grasses, or other multicellular organisms such as algae. In agriculture, grazing is one method used whereby domestic livestock are used to convert grass and other forage into meat, milk and other products. Many small selective herbivores follow larger grazers, who skim off the highest, tough growth of plants, exposing tender shoots. For terrestrial animals, grazing is normally distinguished from browsing in that grazing is eating grass or forbs, and browsing is eating woody twigs and leaves from trees and shrubs. Grazing differs from true predation because the organism being grazed upon is not generally killed. Grazing differs from parasitism as the two organisms live together in a constant state of physical externality (i.e. low intimacy). Water animals that feed for example on algae found on stones are called grazers-scrapers. Grazers-scrapers feed also on microorganisms and dead organic matter on various substrates.
  • 4.1K
  • 16 Nov 2022
Topic Review
Fish Pond Water Quality
The spread of disease caused by the presence of bacteria, algae, protozoa, and fungi in a fish pond can cause biological pollution and reduce fish product production. Water can quickly lose its ability to support life, reproduction, waste excretion, growth, and feed the fish in fish ponds. The needs of the fish, the water quality, and factors for managing the water quality should be understood by those wishing to be successful fish farmers.
  • 4.1K
  • 30 Mar 2022
Topic Review
Fiat CR.42
The Fiat CR.42 Falco ("Falcon", plural: Falchi) was a single-seat sesquiplane fighter developed and produced by Italian aircraft manufacturer Fiat Aviazione. It served primarily in Italy's Regia Aeronautica both before and during the Second World War. The CR.42 was an evolutionary design of Fiat’s earlier CR.32 fighter, featuring a more powerful supercharged Fiat A.74R1C.38 air-cooled radial engine and aerodynamic improvements to its relatively clean exterior surfaces. The aircraft proved to be relatively agile in flight, a factor that had been attributed to its very low wing loading and a sometimes decisive tactical advantage. RAF Intelligence praised its exceptional maneuverability, further noting that "the plane was immensely strong", though it was technically outclassed by faster, more heavily armed monoplanes. While primarily used as a fighter, various other roles were adopted for some variants of the type, such as the CR.42CN dedicated night fighter model, the CR.42AS ground attack aircraft, and the CR.42B Biposto twin-seat trainer aircraft. During May 1939, the CR.42 entered service with the Regia Aeronautica; it was the last of the Fiat biplane fighters to enter front line service. By 10 June 1940, the date when Italy entered the Second World War, roughly 300 of the type had been delivered, which were initially tasked with defending Italy's cities and key military installations. By the end of 1940, the Falco had been involved in combat on various fronts, including the Battle of France, the Battle of Britain, Malta, North Africa, and Greece. By the end of the war, Italian CR.42s had been used on further fronts, including Iraq, the Eastern Front and the Italian mainland. Following the signing of the Italian armistice with the Allies on 8 September 1943, the type was primarily relegated to use as a trainer by the Italian Co-Belligerent Air Force , while some Italian CR.42s were seized by the Germans and used by the Luftwaffe to perform ground attack missions. In addition to its service in Italy, the CR.42 was produced and entered service in smaller numbers with the air forces of several nations, including Belgium, Sweden and Hungary. By the end of production, in excess of 1,800 CR.42s has been constructed, making it the most numerous Italian aircraft to be used during the Second World War. Aviation author Przemyslaw Skulski has claimed that the fighter had performed at its best during its service with the Hungarian Air Force, specifically during its deployment against Soviet forces on the Eastern Front of the war, where it reportedly achieved a kill to loss ratio of 12 to 1.
  • 4.1K
  • 18 Nov 2022
Topic Review
U-Boat Campaign
The U-boat Campaign from 1914 to 1918 was the World War I naval campaign fought by German U-boats against the trade routes of the Allies. It took place largely in the seas around the British Isles and in the Mediterranean. The German Empire relied on imports for food and domestic food production (especially fertilizer) and the United Kingdom relied heavily on imports to feed its population, and both required raw materials to supply their war industry; the powers aimed, therefore, to blockade one another. The British had the Royal Navy which was superior in numbers and could operate on most of the world's oceans because of the British Empire, whereas the Imperial German Navy surface fleet was mainly restricted to the German Bight, and used commerce raiders and unrestricted submarine warfare to operate elsewhere. In the course of events in the Atlantic alone, German U-boats sank almost 5,000 ships with nearly 13 million gross register tonnage, losing 178 boats and about 5,000 men in combat. Other naval theatres saw U-boats operating in both the Far East and South East Asia, the Indian Ocean and the Mediterranean and North Seas.
  • 4.1K
  • 29 Nov 2022
Topic Review
Aluminum-Fuel-Based Energy Conversion Systems
Metallic aluminum is widely used in propellants, energy-containing materials, and batteries due to its high energy density. In addition to burning in the air, aluminum can react with water to generate hydrogen. Aluminum is carbon-free and the solid-phase products can be recycled easily after the reaction. Micron aluminum powder is stable in the air and enables global trade. Aluminum metal is considered to be a viable recyclable carrier for clean energy.
  • 4.1K
  • 05 Jan 2023
Topic Review
Intersubjectivity
Intersubjectivity refers to the shared understanding and mutual agreement between individuals regarding their subjective experiences, perceptions, and interpretations of the world. It involves the recognition and validation of each other's perspectives, allowing for meaningful communication, cooperation, and collaboration based on common understanding and empathy. Intersubjectivity is essential for social interaction, interpersonal relationships, and the construction of shared meanings within society.
  • 4.1K
  • 02 Feb 2024
Topic Review
Traditional Seaweed Farming Methods
The imperative to substantially expand the world’s seaweed aquaculture supply is well established in published literature and has the strong backing of virtually all global non-government organizations (NGOs). The expansion of seaweed farming is recognised as one of the best approaches to realising many of the sustainable development goals of the United Nations.
  • 4.1K
  • 27 Oct 2022
Topic Review
Ultrasonic Spray Pyrolysis
In the field of synthesis and processing of noble metal nanoparticles, the study of the bottom-up method, called Ultrasonic Spray Pyrolysis (USP), is becoming increasingly important. This review analyses briefly the features of USP, to underline the physical, chemical and technological characteristics for producing nanoparticles and nanoparticle composites with Au and Ag. The main aim is to understand USP parameters, which are responsible for nanoparticle formation. There are two nanoparticle formation mechanisms in USP: Droplet-To-Particle (DTP) and Gas-To-Particle (GTP). This review shows how the USP process is able to produce Au, Ag/TiO2, Au/TiO2, Au/Fe2O3 and Ag/(Y0.95 Eu0.05)2O3 nanoparticles, and presents the mechanisms of formation for a particular type of nanoparticle. Namely, the presented Au and Ag nanoparticles are intended for use in nanomedicine, sensing applications, electrochemical devices, and catalysis, in order to benefit from their properties, which cannot be achieved with identical bulk materials. The development of new noble metal nanoparticles with USP is a constant goal in Nanotechnology, with the objective to obtain increasingly predictable final properties of nanoparticles.
  • 4.1K
  • 14 Aug 2020
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