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Topic Review
Halāl Salami
The quality assessment and authentication of ḥalāl products are issues raising a growing interest in European Community Countries (France, Sweden, Germany, Greece, Spain, Italy), in Switzerland, in Russia and other countries in the world (Asia, the UK, South and North America). Considering that top producers of ḥalāl products (including meat) are countries where Muslims are a minority, future research should take into consideration ḥalāl standards, immigration and integration of qualified Muslim workers.
  • 2.9K
  • 16 Aug 2020
Topic Review
Spin-Off–University Relationship
The concept of academic spin-off (AS) has witnessed an increase in attention due to its effectiveness in solving industry problems using core technology and knowledge from academia. Most studies based on US and western Europe experiences have presented the main key factors for academic spin-offs.
  • 2.9K
  • 26 Jul 2022
Topic Review
FileMaker Pro
FileMaker Pro is a cross-platform relational database application from Claris International, a subsidiary of Apple Inc. It integrates a database engine with a graphical user interface (GUI) and security features, allowing users to modify the database by dragging new elements into layouts, screens, or forms. FileMaker evolved from a DOS application, but was then developed primarily for the Apple Macintosh and released in April 1985. It was succeeded by FileMaker Pro in 1990. Since 1992 it has been available for Microsoft Windows and for the classic Mac OS and macOS, and can be used in a cross-platform environment. FileMaker server briefly ran on Linux, but Linux support was abandoned with FileMaker 7, thereafter only running on Windows or macOS servers. A client version was released for iOS devices in July 2010. It is available in desktop, server, iOS and web-delivery configurations. In 2016, FileMaker Cloud was introduced, including a Linux server (CentOS), which was offered exclusively through the Amazon Marketplace. In November 2019, FileMaker Cloud was reintroduced as a software as a service product offered directly from Claris for FileMaker Pro 18.0.3 using FileMaker Server Cloud 2.18 service on Amazon Servers, but managed by Claris instead of through the Amazon Market Place, and making use of the new FileMaker ID authentication.
  • 2.9K
  • 28 Oct 2022
Biography
Roger Shepard
Roger Newland Shepard (born January 30, 1929) is an American cognitive scientist and author of the "universal law of generalization" (1987). He is considered a father of research on spatial relations. He studied mental rotation, and was an inventor of non-metric multidimensional scaling, a method for representing certain kinds of statistical data in a graphical form that can be apprehended by hu
  • 2.9K
  • 30 Nov 2022
Topic Review
Green Entrepreneurship
The concept of “green entrepreneurship” has been given significant attention by academics, who push for “going green” to be captured as a measure to raise environmental sustainability. Give this direction, researchers view green entrepreneurship as the answer to ecological and social problems. This concept suggests that the world can become environmentally friendly when individuals pay attention to the “going green” environment. Green entrepreneurship is a new area in academia, both in research and policy forums in Ghana, and is thus no longer a clumsy business, but a charitable social action with the aim of safeguarding and conserving natural resources.
  • 2.9K
  • 30 Jul 2021
Topic Review
Mineralogy of Antimony Ores and Antimony Production
Antimony is a metalloid element having common oxidation states of 5+ and 3+. It is a lustrous silvery-white solid, which is quite brittle and exhibits a flaky texture.  Antimony is classified as a critical/strategic metal. Stibnite, jamesonite, and antimony-gold ores are the most common sources of antimony.
  • 2.9K
  • 02 Sep 2022
Topic Review
“Singing” Multilayer Ceramic Capacitors and Mitigation Methods
Multilayer Ceramic Capacitors (MLCC) have a major role in modern electronic devices due to their small price and size, large range of capacitance, small ESL and ESR, and good frequency response. Unfortunately, the main dielectric material used for MLCCs, Barium Titanate, makes the capacitors vibrate due to the piezoelectric and electrostrictive effects. This vibration is transferred to the PCB, making it resonate in the audible range of 20 Hz–20 kHz, and in this way the singing capacitors phenomenon occurs. This phenomenon is usually measured with a microphone, to measure the sound pressure level, or with a Laser Doppler Vibrometer (LDV), to measure the vibration. Besides this, other methods are mentioned in the literature, for example, the optical fiber and the active excitation method. There are several solutions to attenuate or even eliminate the acoustic noise caused by MLCC. Specially designed capacitors for low acoustic levels and different layout geometries are only two options found in the literature. To prevent the singing capacitor phenomenon, different simulations can be performed, the harmonic analysis being the most popular technique. 
  • 2.9K
  • 06 Jun 2022
Topic Review
The Advanced Micro-Drilling Process
The increased demand for miniature components has drawn the attention of researchers, engineers, and industry users to manufacture precision micro and mesoholes on foils, sheets, and plates made from a variety of engineering materials. Due to the inherent limitations of conventional drilling processes, the modern or advanced drilling processes are being used to fabricate fine and deep precision holes in a wide range of materials. The spark erosion based drilling is one of them. A comprehensive detail on miniature hole fabrication by micro spark erosion machining (µ-SEM) and micro spark erosion drilling (µ-SED) is given.
  • 2.9K
  • 04 Jul 2022
Topic Review
Alloying Elements and Mechanical Characteristics of Mg-Based Materials
Magnesium alloys are widely employed in various applications due to their high strength-to-weight ratio and superior mechanical properties as compared to unalloyed Magnesium. Alloying is considered an important way to enhance the strength of the metal matrix composite but it significantly influences the damping property of pure magnesium, while controlling the rate of corrosion for Mg-based material remains critical in the biological environment. Therefore, it is essential to reinforce the magnesium alloy with a suitable alloying element that improves the mechanical characteristics and resistance to corrosion of Mg-based material. Biocompatibility, biodegradability, lower stress shielding effect, bio-activeness, and non-toxicity are the important parameters for biomedical applications other than mechanical and corrosion properties. The development of various surface modifications is also considered a suitable approach to control the degradation rate of Mg-based materials, making lightweight Mg-based materials highly suitable for biomedical implants. 
  • 2.9K
  • 01 Sep 2022
Topic Review
New Chronology (Rohl)
New Chronology is an alternative chronology of the ancient Near East developed by English Egyptologist David Rohl and other researchers beginning with A Test of Time: The Bible - from Myth to History in 1995. It contradicts mainstream Egyptology by proposing a major revision of the established Egyptian chronology, in particular by re-dating Egyptian kings of the Nineteenth through Twenty-fifth Dynasties, bringing forward conventional dating by up to 350 years. Rohl asserts that the New Chronology allows him to identify some of the characters in the Hebrew Bible with people whose names appear in archaeological finds. The New Chronology, one of several proposed radical revisions of the conventional chronology, has not been accepted in academic Egyptology, where the conventional chronology or small variations of it remain standard. Amélie Kuhrt, head of Ancient Near Eastern History at University College London, in one of the standard reference works of the discipline, notes: "Many scholars feel sympathetic to the critique of weaknesses in the existing chronological framework [...], but most archaeologists and ancient historians are not at present convinced that the radical redatings proposed stand up to close examination." Rohl's most vocal critic has been Kenneth Kitchen, one of the leading experts on biblical history and the author of the standard work on the conventional chronology of the Third Intermediate Period of Egypt, the period most directly affected by the New Chronology's redating of the Nineteenth to Twenty-fifth Dynasties.
  • 2.9K
  • 20 Oct 2022
Topic Review
Trypanosomatid Pathogens
Unicellular eukaryotes of the Trypanosomatidae family include human and animal pathogens that belong to the Trypanosoma and Leishmania genera. Diagnosis of the diseases they caused requires the sampling of body fluids (blood, lymph, peritoneal fluid, cerebrospinal fluid, etc.) or organ biopsies (bone marrow, spleen, etc.), which are mostly obtained through invasive methods. Body fluids or appendages can be alternatives to these invasive biopsies but their appropriateness remains poorly studied. To further address this question, we perform a systematic review on clues evidencing the presence of parasites, genetic material, antibodies, and antigens in body secretions, appendages, or the organs or proximal tissues that produce these materials.
  • 2.9K
  • 29 Oct 2020
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
The Feynman Lectures on Physics
The Feynman Lectures on Physics is a physics textbook based on some lectures by Richard P. Feynman, a Nobel laureate who has sometimes been called "The Great Explainer". The lectures were presented before undergraduate students at the California Institute of Technology (Caltech), during 1961–1963. The book's co-authors are Feynman, Robert B. Leighton, and Matthew Sands. The Feynman Lectures on Physics is perhaps the most popular physics book ever written. More than 1.5 million English-language copies have been sold; probably even more copies have been sold in a dozen foreign-language editions. A 2013 review in Nature described the book as having "simplicity, beauty, unity ... presented with enthusiasm and insight".
  • 2.9K
  • 27 Oct 2022
Biography
Peter C. Doherty
Peter Charles Doherty AC FRS FMedSci (born 15 October 1940)[1] is an Australian immunologist and Nobel laureate.[2] He received the Albert Lasker Award for Basic Medical Research in 1995, the Nobel Prize in Physiology or Medicine jointly with Rolf M. Zinkernagel[3] in 1996 and was named Australian of the Year in 1997.[4] In the Australia Day Honours of 1997, he was named a Companion of the Order
  • 2.9K
  • 08 Dec 2022
Topic Review
FTIR for Vehicle Exhaust Emissions
In a Fourier Transform InfraRed (FTIR) spectrometer, some of the infrared (IR) radiation is absorbed by the sample, and some of it is passed through (transmitted). The resulting molecular absorption and transmission response can be used to identify the components of the sample and their concentration.
  • 2.9K
  • 20 Aug 2021
Topic Review
Low-Voltage GaN FETs in Motor Control Application
The efficiency and power density improvement of power switching converters play a crucial role in energy conversion. In the field of motor control, this requires an increase in the converter switching frequency together with a reduction in the switching legs’ dead time. This target turns out to be complex when using pure silicon switch technologies. Gallium Nitride (GaN) devices have appeared in the switching device arena in recent years and feature much more favorable static and dynamic characteristics compared to pure silicon devices. In the field of motion control, there is a growing use of GaN devices, especially in low voltage applications.
  • 2.9K
  • 29 Oct 2021
Topic Review
Innovative Tools in Farm Animals’ Early Disease Diagnosis
As the importance of farming continues to grow, innovative technology and sensors play an increasingly important role. Automation and robots in agriculture have the potential to play a significant role in helping society fulfill its future demands for food supply. Wearable sensors connected to or within cows can monitor eating, rumination, pH, body temperature, laying behavior, animal activity, animal position or placement, and more.
  • 2.9K
  • 16 Mar 2023
Topic Review
Q'uq'umatz
Q'uq'umatz (Mayan: [qʔuː qʔuːˈmats]) (alternatively Qucumatz, Gukumatz, Gucumatz, Gugumatz, Kucumatz etc.) was a deity of the Postclassic K'iche' Maya. Q'uq'umatz was the Feathered Serpent divinity of the Popol Vuh who created humanity together with the god Tepeu. Q'uq'umatz is considered to be the rough equivalent of the Aztec god Quetzalcoatl, and also of Kukulkan of the Yucatec Maya tradition. It is likely that the feathered serpent deity was borrowed from one of these two peoples and blended with other deities to provide the god Q'uq'umatz that the K'iche' worshipped. Q'uq'umatz may have had his origin in the Valley of Mexico; some scholars have equated the deity with the Aztec deity Ehecatl-Quetzalcoatl, who was also a creator god. Q'uq'umatz may originally have been the same god as Tohil, the K'iche' sun god who also had attributes of the feathered serpent, but they later diverged and each deity came to have a separate priesthood. Q'uq'umatz was one of the gods who created the world in the Popul Vuh, the K'iche' creation epic. Q'uq'umatz, god of wind and rain, was closely associated with Tepeu, god of lightning and fire. Both of these deities were considered to be the mythical ancestors of the K'iche' nobility by direct male line. Q'uq'umatz carried the sun across the sky and down into the underworld and acted as a mediator between the various powers in the Maya cosmos. The deity was particularly associated with water, clouds, the wind and the sky. Kotuja', the K'iche' king who founded the city of Q'umarkaj, bore the name of the deity as a title and was likely to have been a former priest of the god. The priests of Q'uq'umatz at Q'umarkaj, the K'iche' capital, were drawn from the dominant Kaweq dynasty and acted as stewards in the city.
  • 2.9K
  • 21 Nov 2022
Topic Review
Active and Assisted Living
Over the last decade, there has been considerable and increasing interest in the development of Active and Assisted Living (AAL) systems to support independent living. The demographic change towards an aging population has introduced new challenges to today’s society from both an economic and societal standpoint. AAL can provide an array of solutions for improving the quality of life of individuals, for allowing people to live healthier and independently for longer, for helping people with disabilities, and for supporting caregivers and medical staff. 
  • 2.9K
  • 19 Nov 2021
Topic Review
Carbohydrate Maldigestion and Intolerance
When malabsorbed carbohydrates reach the colon, they are fermented by colonic bacteria, with the production of short-chain fatty acids and gas lowering colonic pH. The appearance of diarrhoea or symptoms of flatulence depends in part on the balance between the production and elimination of these fermentation products. Different studies have shown that there are no differences in the frequency of sugar malabsorption between patients with irritable bowel disease (IBS) and healthy controls; however, the severity of symptoms after a sugar challenge is higher in patients than in controls. 
  • 2.9K
  • 19 May 2022
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