Your browser does not fully support modern features. Please upgrade for a smoother experience.
Subject:
All Disciplines Arts & Humanities Biology & Life Sciences Business & Economics Chemistry & Materials Science Computer Science & Mathematics Engineering Environmental & Earth Sciences Medicine & Pharmacology Physical Sciences Public Health & Healthcare Social Sciences
Sort by:
Most Viewed Latest Alphabetical (A-Z) Alphabetical (Z-A)
Filter:
All Topic Review Biography Peer Reviewed Entry Video Entry
Topic Review
Conversion of Carbon Dioxide into Methanol
As an energy source, methanol presents the advantage of being liquid at environmental temperature, which makes it easier to transport and store.
  • 1.7K
  • 21 Apr 2022
Topic Review
Synthesis and Simulation of Nanomaterials
Nanocomposite materials “are composed of several multiple nanomaterials entrapped within a bulk material, which may comprise a combination of a soft and a hard nanomaterial, two soft nanomaterials, or two hard nanomaterials”. 
  • 1.7K
  • 27 Apr 2022
Topic Review
Sustainable Learning and Education
Sustainable learning and education (SLE) is a relatively new ideology based on sustainability principles and developed in response to the United Nations’ recently proclaimed Sustainable Development Goals (SDGs). Recently, the coronavirus (COVID-19) pandemic has affected educational systems globally, leading them to embrace more innovative technological methods to meet academic demands while maintaining SLE principles. Mobile learning apps (MLA) refers to using the unique capabilities of mobile apps to engage and collaborate towards establishing robust online learning.
  • 1.7K
  • 26 Apr 2022
Topic Review
Nanocomposite Coatings
The development of nanocomposite coatings is a rapidly growing field in the domain of nanotechnology. Nanocomposite coatings are rapidly being inducted in the sectors of aerospace, marine, automobiles, sensors, dental implants and electronics. Factors that affect the functionality of nanocomposite coatings include properties of matrices and fillers, spatial dispersion of fillers, surface morphology and deposition techniques.
  • 1.7K
  • 29 Apr 2022
Topic Review
Overview of Marine Bioactive Peptides against HIV
Marine bioactive peptides (MBAPs) that are present in many marine species, including fish, sponges, cyanobacteria, fungi, ascidians, seaweeds, and mollusks, have gained widespread attention for their health-promoting benefits. MBAPs obtained from marine species have ameliorating potential against many health conditions, such as hypertension, diabetes, obesity, HIV, cancer, oxidation, and inflammation. Various research studies have indicated that MBAPs can be utilized as novel lead structures for the treatment of HIV in conjunction with pharmaceuticals and functional foods owing to their potential therapeutic, and antiretroviral (ARV) activities.
  • 1.7K
  • 31 Aug 2022
Topic Review
Ontological Argument
Ontological is derived from ontos, the greek word being. The name is intended to convey the intent of the argument to prove God's existence by virtue of his existence being necessary. It was first proposed by the medieval philosopher Anselm of Canterbury in his Proslogion, and important variations have been developed by philosophers such as René Descartes, Gottfried Leibniz, Norman Malcolm, Charles Hartshorne, and Alvin Plantinga. A modal logic version of the argument was devised by mathematician Kurt Gödel. The ontological argument has been controversial in philosophy and many philosophers have famously criticized or opposed it, including Anselm's contemporary Gaunilo of Marmoutiers, as well as David Hume, Immanuel Kant, and Gottlob Frege. Some of these opponents have preferred to rely on cosmological arguments for the existence of God instead. It continues to garner discus ion to the present.
  • 1.7K
  • 21 Oct 2022
Topic Review
Outline of Biophysics
The following outline is provided as an overview of and topical guide to biophysics: Biophysics – interdisciplinary science that uses the methods of physics to study biological systems.
  • 1.7K
  • 02 Nov 2022
Topic Review
Repulsion Motor
A repulsion motor is a type of electric motor for using on alternating current (AC). It was formerly used as a traction motor for electric trains (e.g. SR Class CP and SR Class SL electric multiple units) but has been superseded by other types of motors. Repulsion motors are classified under single phase motors. In repulsion motors the stator windings are connected directly to the AC power supply and the rotor is connected to a commutator and brush assembly, similar to that of a direct current (DC) motor.
  • 1.7K
  • 08 Nov 2022
Topic Review
Megapnosaurus Rhodesiensis
Coelophysis rhodesiensis is an extinct species of coelophysid theropod dinosaur that lived approximately 188 million years ago during the early part of the Jurassic Period in what is now Africa. The species was a small to medium-sized, lightly built, ground-dwelling, bipedal carnivore, that could grow up to 3 m (9.8 ft) long. It was formerly called Syntarsus, but that name was already taken by a beetle, and was subsequently given the name Megapnosaurus by Ivie, Ślipiński & Węgrzynowicz, in 2001, though many subsequent studies have classified it in the genus Coelophysis.
  • 1.7K
  • 28 Nov 2022
Biography
Emil Georg Cohn
Emil Georg Cohn (28 September 1854 – 28 January 1944), was a German physicist. Cohn was born in Neustrelitz, Mecklenburg on 28 September 1854. He was the son of August Cohn, a lawyer, and Charlotte Cohn. At the age of 17, Cohn began to study jurisprudence at the University of Leipzig. However, at the Ruprecht Karl University of Heidelberg and the University of Strasbourg he began to study p
  • 1.7K
  • 30 Dec 2022
Topic Review
The Role of Melatonin in Pregnancy
Melatonin is a lipophilic hormone synthesized and secreted mainly in the pineal gland, acting as a neuroendocrine transducer of photoperiodic information during the night. In addition to this activity, melatonin has shown an antioxidant function and a key role as a regulator of physiological processes related to human reproduction. Several studies have evaluated its role in ovarian dysfunction, ovarian ageing, embryo maturation and gynecological cancer. 
  • 1.7K
  • 01 Jan 2023
Topic Review
Biochar Materials
Biochar (BC) based materials are solid carbon enriched materials produced via different thermochemical techniques such as pyrolysis.
  • 1.7K
  • 23 Feb 2023
Topic Review
225Ac-Labeled Somatostatin Analogs in Neuroendocrine Tumors Management
The widespread use of peptide receptor radionuclide therapy (PRRT) represents a major therapeutic breakthrough in nuclear medicine, particularly since the introduction of 177Lu-radiolabeled somatostatin analogs. These radiopharmaceuticals have especially improved progression-free survival and quality of life in patients with inoperable metastatic gastroenteropancreatic neuroendocrine tumors expressing somatostatin receptors. In the case of aggressive or resistant disease, the use of somatostatin derivatives radiolabeled with an alpha-emitter could provide a promising alternative. Among the currently available alpha-emitting radioelements, actinium-225 has emerged as the most suitable candidate, especially regarding its physical and radiochemical properties.
  • 1.7K
  • 30 Mar 2023
Topic Review
MIP Application for the Detection of Cancer Biomarkers
Biomarkers can provide critical information about cancer and many other diseases; therefore, developing analytical systems for recognising biomarkers is an essential direction in bioanalytical chemistry. Molecularly imprinted polymers (MIPs) have been applied in analytical systems to determine biomarkers. The most attractive way to replace natural biological recognition systems is based on applying molecularly imprinted polymers.
  • 1.7K
  • 24 Apr 2023
Topic Review
Environmental Stress-Induced Anthocyanin Accumulation in Plants
Plants have evolved complicated defense and adaptive systems to grow in various abiotic stress environments such as drought, cold, and salinity. Anthocyanins belong to the secondary metabolites of flavonoids with strong antioxidant activity in response to various abiotic stress and enhance stress tolerance. Anthocyanin accumulation often accompanies the resistance to abiotic stress in plants to scavenge reactive oxygen species (ROS). 
  • 1.7K
  • 18 Feb 2024
Topic Review
3D Printing to Produce BioComposite
Current environmental concerns have led to a search of more environmentally friendly manufacturing methods, thus, natural fibers have gained attention in the 3D printing industry to be used as biofilters along with thermoplastics. The utilization of natural fibers is very convenient as they are easily available, cost-effective, eco-friendly, and biodegradable. Using natural fibers rather than synthetic fibers in the production of the 3D printing filaments will reduces gas emissions associated with the production of the synthetic fibers that would add to the current pollution problem. As a matter of fact, natural fibers have a reinforcing effect on plastics. This review analyzes how the properties of the different types of polymers vary when natural fibers processed to produce filaments for 3D Printing are added. The results of using natural fibers for 3D Printing are presented in this study and appeared to be satisfactory, while a limited number of studies have reported some issues.
  • 1.7K
  • 13 May 2021
Topic Review
TRAPS
Tumor necrosis factor receptor-associated periodic syndrome (commonly known as TRAPS) is a condition characterized by recurrent episodes of fever.
  • 1.7K
  • 23 Dec 2020
Topic Review
Challenges in Systemic Lupus Erythematosus
Systemic lupus erythematosus (SLE) is an immune-mediated multi-systemic disease characterized by a wide variability of clinical manifestations and a course frequently subject to unpredictable flares. Despite significant advances in the understanding of the pathophysiology and optimization of medical care, patients with SLE still have significant mortality and carry a risk of progressive organ damage accrual and reduced health-related quality of life.
  • 1.7K
  • 19 Feb 2021
Topic Review
P53 DNA Binding Cooperativity Mutations
p53 is a tumor suppressor that is mutated in half of all cancers. The high clinical relevance has made p53 a model transcription factor for delineating general mechanisms of transcriptional regulation. p53 forms tetramers that bind DNA in a highly cooperative manner. The DNA binding cooperativity of p53 has been studied by structural and molecular biologists as well as clinical oncologists. These experiments have revealed the structural basis for cooperative DNA binding and its impact on sequence specificity and target gene spectrum. Cooperativity was found to be critical for the control of p53-mediated cell fate decisions and tumor suppression. Importantly, an estimated number of 34,000 cancer patients per year world-wide have mutations of the amino acids mediating cooperativity, and knock-in mouse models have confirmed such mutations to be tumorigenic. While p53 cancer mutations are classically subdivided into “contact” and “structural” mutations, “cooperativity” mutations form a mechanistically distinct third class that affect the quaternary structure but leave DNA contacting residues and the three-dimensional folding of the DNA-binding domain intact. In this review we discuss the concept of DNA binding cooperativity and highlight the unique nature of cooperativity mutations and their clinical implications for cancer therapy.
  • 1.7K
  • 23 Jun 2021
Topic Review
Soy Isoflavones
After consumption of soy isoflavones, a study revealed statistically insignificant reduction in fasting glucose, insulin, HbA1c, and HOMA-IR (changes in glucose metabolism). The observed ability of both extracted isoflavone and soy protein with isoflavones to modulate the lipid profile suggests benefits in preventing cardiovascular events in diabetic subjects.
  • 1.7K
  • 21 Jun 2021
  • Page
  • of
  • 2799
Featured Entry Collections
>>

Featured Reprints

>>
Encyclopedia of Digital Society, Industry 5.0 and Smart City
Encyclopedia of Engineering
Encyclopedia of Social Sciences
Encyclopedia of Medieval Royal Iconography
Academic Video Service
Feedback