You're using an outdated browser. Please upgrade to a modern browser for the best 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
Organoselenium Compounds
Organoselenium compounds have anti-oxidative effects, several natural and synthetic organoselenium compounds and metabolites act as histone deacetylase inhibitors, which influence the acetylation status of histones and non-histone proteins, altering gene transcription.
  • 1.1K
  • 14 Feb 2022
Topic Review
Online Pharmacies Selling Prescription Drugs
Almost half of the online pharmacies are not properly regulated and fraudulent issues were uncovered. To address this issue, stricter regulation by World Health Organization and implementation should be carried out together with frequent monitoring of the licensure system and pharmacy verification on every online pharmacy, this would reduce the number of illegal or illegitimate online pharmacy. 
  • 1.1K
  • 12 Apr 2022
Topic Review
Motor Fitness and Flexibility Tests in Older Adults
Strong evidence indicated that (i) slower gait speed predicts falls and institutionalization/hospitalization in adults over 60 years old, cognitive decline/impairment over 55 years old, mobility disability over 50 years old, disability in instrumental activities of daily living (IADL) over 54 years old, cardiovascular disease risk over 45 years old, and all-cause mortality over 35 years old; (ii) impaired balance predicts falls and disability in IADL/mobility disability in adults over 40 years old and all-cause mortality over 53 years old; (iii) worse timed up&go test (TUG) predicts falls and fear of falling over 40 years old. Evidence supports that slower gait speed, impaired balance, and worse TUG performance are significantly associated with an increased risk of adverse health outcomes in adults. 
  • 1.1K
  • 29 Mar 2022
Topic Review
Anti-Obesity Effects of Natural Constituents
Obesity is a chronic metabolic complication, and its management requires long-term medication, lifestyle modifications, and dietary interventions. Patients taking anti-obesity medications may suffer from side effects such as psychiatric disorders, anxiety, depression, and vitamin deficiency. Various classes of natural compounds are promising agents to combat the obesity pandemic. Developing safer drugs may require polytherapeutic strategies to combat the global obesity pandemic.
  • 1.1K
  • 14 Feb 2023
Topic Review
Sarcopenic Dysphagia
Sarcopenia, defined as a decline in muscle mass and function related to aging, affects both limb and swallowing-related muscles. Sarcopenic dysphagia is characterized by decreased swallowing function; therefore, early detection of subclinical dysphagia and subsequent intervention appear to be crucial in the elderly. 
  • 1.1K
  • 17 Nov 2021
Topic Review
Glycosaminoglycans in Mucopolysaccharidosis
Mucopolysaccharidosis (MPS) consists of a group of inherited lysosomal storage disorders that are caused by a defect of certain enzymes that participate in the metabolism of glycosaminoglycans (GAGs). The abnormal accumulation of GAGs leads to progressive dysfunctions in various tissues and organs during childhood, contributing to premature death.
  • 1.1K
  • 23 Mar 2023
Topic Review
Indoor Electronic Travel Aid for Visually Impaired Individuals
Most navigation aids for visually impaired individuals require users to pay close attention and actively understand the instructions or feedback of guidance, which impose considerable cognitive loads in long-term usage. The “Aerial Guide Dog”, a helium balloon aerostat drone designed for indoor guidance, which leverages gentle tugs in real time for directional guidance, ensuring a seamless and intuitive guiding experience. The introduced Aerial Guide Dog has been evaluated in terms of directional guidance and path following in the pilot study, focusing on assessing its accuracy in orientation and the overall performance in navigation.
  • 1.1K
  • 18 Jan 2024
Topic Review
Radial Artery Occlusion
The thrombotic occlusion of the radial artery has emerged as the most common complication of transradial coronary access, impeding its use in future interventions, and in the creation of arteriovenous fistulae for hemodialysis patients, or as a graft for coronary artery bypass grafting. In this entry, the researchers delve into the anatomy of the radial artery, the pathophysiology, and diagnosis of radial artery occlusion, the identification of potential risk factors, and finally prevention and treatment strategies. It is acknowledged that distal transradial access provides an effective alternative for coronary angiography and catheterization, with a reduced incidence of radial artery occlusion.
  • 1.1K
  • 14 Jul 2023
Topic Review
Surgical Treatment of Acute Ankle Injury
Ankle sprains are exceedingly common injuries in both athletes and the general population. They account for 10 to 30% of all sports injuries. Although the vast majority of lateral ankle ligament injuries respond successfully to conservative management, the absolute number of those that progress to chronic lateral ankle instability (CLAI) remains considerably important. This condition is characterized by persistent symptoms and may be associated with short-term and long-term complications and functional deficits. 
  • 1.1K
  • 16 Jan 2024
Topic Review
Role of Blockchain Technology in COVID-19 Crisis
To obtain adequate performance in resolving issues that are associated with the COVID-19 pandemic, blockchain can be combined with other available technologies to establish a robust healthcare architecture.
  • 1.1K
  • 29 Jan 2022
Topic Review
Framework for Training Parkinson Nurses
Delivering healthcare to people living with Parkinson’s disease (PD) may be challenging in face of changing care needs during a PD journey and a growing complexity. In this regard, integrative and personalized care models may foster flexible solutions to patients’ care needs whereas Parkinson Nurses (PN) may be pivotal facilitators. However, existing training frameworks do not include aspects of personalized care for PD although there is a great deal of literature on patient needs and the resulting care requirements. The conceptualization of a need-based training framework may thus be achieved by synthesizing theoretical concepts on care priorities from existing literature. Following, a novel framework for training PN is presented, which is based on a line of reasoning. In this approach, different hypotheses are formulated which then are integrated into a proposed model.
  • 1.1K
  • 07 Sep 2023
Topic Review
An Easier Time Gaining Than Losing Weight
Three powerful innate physiological defenses interfere with the maintenance of weight loss, whether it is achieved from the obese or healthy weight level. The first one, called adaptive thermogenesis, consists of persistent reduction in resting metabolic rate (RMR), the second one is increased hunger, and the third one is enhanced efficiency of energy storage. Adaptive thermogenesis was studied in individuals who lost substantial amounts of body weight and body fat in attempts to win “The biggest loser” televised competition.
  • 1.1K
  • 11 Nov 2021
Topic Review
Homocysteine Solution-Induced Response in OECTs Devices
Homocysteine (Hcy) is a non-protein, sulfur-containing amino acid, which is recognized as a possible risk factor for coronary artery and other pathologies when its levels in the blood exceed the normal range of between 5 and 12 μmol/L (hyperhomocysteinemia). At present, standard procedures in laboratory medicine, such as high-performance liquid chromatography (HPLC), are commonly employed for the quantitation of total Hcy (tHcy), i.e., the sum of the protein-bound (oxidized) and free (homocystine plus reduced Hcy) forms, in biological fluids (particularly, serum or plasma). Here, the response of Aerosol Jet-printed organic electrochemical transistors (OECTs), in the presence of either reduced (free) and oxidized Hcy-based solutions, was analyzed. Two different experimental protocols were followed to this end: the former consisting of gold (Au) electrodes’ biothiol-induced thiolation, while the latter simply used bare platinum (Pt) electrodes. Electrochemical impedance spectroscopy (EIS) analysis was performed both to validate the gold thiolation protocol and to gain insights into the reduced Hcy sensing mechanism by the Au-gated OECTs, which provided a final limit of detection (LoD) of 80 nM. For the OECT response based on Platinum gate electrodes, on the other hand, a LoD of 180 nM was found in the presence of albumin-bound Hcy, with this being the most abundant oxidized Hcy-form (i.e., the protein-bound form) in physiological fluids. Despite the lack of any biochemical functionalization supporting the response selectivity, the findings discussed in this work highlight the potential role of OECT in the development of low-cost point-of-care (POC) electronic platforms that are suitable for the evaluation, in humans, of Hcy levels within the physiological range and in cases of hyperhomocysteinemia.
  • 1.1K
  • 16 Nov 2021
Topic Review
Congenital Afibrinogenemia and Hypofibrinogenemia
Congenital fibrinogen disorders are rare pathologies of the hemostasis, comprising quantitative and qualitative disorders. The clinical phenotype is highly heterogeneous, being associated with bleeding, thrombosis, or absence of symptoms. Afibrinogenemia and hypofibrinogenemia are the consequence of mutations in the homozygous, heterozygous, or compound heterozygous state in one of three genes encoding the fibrinogen chains, which can affect the synthesis, assembly, intracellular processing, stability, or secretion of fibrinogen. In addition to standard coagulation tests depending on the formation of fibrin, diagnostics also includes global coagulation assays, which are effective in monitoring the management of replacement therapy. Genetic testing is a key point for confirming the clinical diagnosis. The identification of the precise genetic mutations of congenital fibrinogen disorders is of value to permit early testing of other at risk persons and better understand the correlation between clinical phenotype and genotype.
  • 1.1K
  • 02 Mar 2022
Topic Review
Caregiving in Parkinson´s Disease and Deep Brain Stimulation
In Parkinson’s disease (PD) patients, the progressive nature of the disease and the variability of disabling motor and non-motor symptoms contribute to the growing caregiver burden (CB) of PD partners and conflicts in their relationships. In advanced stages of the disease, Deep Brain Stimulation (DBS) improves PD symptoms and patients quality of life but the effect of DBS on CB of PD partners seems to be heterogeneous. The CB in the context of DBS framing both pre-, peri- and postoperative aspects aims to be illuminated, and further recognition of caregiver burden in partners of PD patients with DBS will be stimulated.
  • 1.0K
  • 18 Feb 2022
Topic Review
Deep Learning Approach for Lung Cancer Diagnosis
Deep learning has emerged as a powerful tool for medical image analysis and diagnosis, demonstrating high performance on tasks such as cancer detection. As deep learning techniques continue to revolutionize the field of medical imaging, researchers have increasingly turned to large-scale databases to train and validate their algorithms. Many studies have been done to diagnose lung cancer using different datasets, both public and private. Each dataset has its own unique characteristics and challenges.
  • 1.0K
  • 18 Feb 2024
Topic Review
Ontology-Based Parkinson’s Disease Monitoring and Alerting with PHKG-GNNs
In the realm of Parkinson’s Disease (PD) research, the integration of wearable sensor data with personal health records (PHR) has emerged as a pivotal avenue for patient alerting and monitoring. The complex domain of PD patient care was delved into, with a specific emphasis on harnessing the potential of wearable sensors to capture, represent and semantically analyze crucial movement data and knowledge. The primary objective is to enhance the assessment of PD patients by establishing a robust foundation for personalized health insights through the development of Personal Health Knowledge Graphs (PHKGs) and the employment of personal health Graph Neural Networks (PHGNNs) that utilize PHKGs. The objective is to formalize the representation of related integrated data, unified sensor and PHR data in higher levels of abstraction, i.e., in a PHKG, to facilitate interoperability and support rule-based high-level event recognition such as patient’s missing dose or falling. This is an extension of researchers' previous related work, presents the Wear4PDmove ontology in detail and evaluates the ontology within the development of an experimental PHKG. Furthermore, the integration and evaluation of PHKG within the implementation of a Graph Neural Network (GNN) are focused on. The importance of integrating PD-related data for monitoring and alerting patients with appropriate notifications are emphasized. These notifications offer health experts precise and timely information for the continuous evaluation of personal health-related events, ultimately contributing to enhanced patient care and well-informed medical decision-making. Finally, a novel approach for integrating personal health KGs and GNNs for PD monitoring and alerting solutions is proposed.
  • 1.0K
  • 18 Mar 2024
Biography
Roy (Robert Alexander) McConkey
Roy McConkey is Emeritus Professor of Developmental Disabilities at Ulster University, Northern Ireland. A psychologist by training and a native of Belfast, with degrees from Queen’s University, Belfast (BA) and the Victoria University of Manchester, England (Ph.D). He has previously held posts in England, Scotland and the Republic of Ireland in both academia and as director of support service
  • 1.0K
  • 26 Jan 2024
Topic Review
Chitin and Chitinase Induction in Neurodegenerative Diseases
Increased levels of Chitinases, in particular Chitotriosidase (CHIT-1) and chitinase-3-like protein 1 (CHI3L1), have been found increased in several neurodegenerative disorders. Although having important biological roles in inflammation, to date, the molecular mechanisms of Chitinase involvement in the pathogenesis of neurodegenerative disorders is not well-elucidated.
  • 1.0K
  • 13 Apr 2023
Topic Review
Circulating Tumor Cells in Metastatic Cascade
Circulating tumor cells (CTCs) are a heterogeneous population of tumor cells that have shed from a tumor into the lymphatics and vasculature, ultimately disseminating into blood circulation. Circulating tumor cells are a key player in cancer metastasis, a multi-step and complex process that involves (1) local invasion of primary tumor cells into adjacent tissue; (2) intravasation (trans-endothelial migration into nearby blood vessels); (3) circulation (transient travel and survival in the circulatory system as CTCs); (4) extravasation; (5) colonization. To successfully metastasize, CTCs must evade immune surveillance at every step once they leave the immunosuppressive tumor microenvironment. On the other hand, immune cells can promote or inhibit tumorigenesis, depending on the cell type and context.
  • 1.0K
  • 04 Mar 2022
  • Page
  • of
  • 43
Featured Entry Collections
>>

Featured Books

>>
Encyclopedia of COVID-19
Encyclopedia of Engineering
Encyclopedia of Social Sciences
Encyclopedia of Digital Society, Industry 5.0 and Smart City
Academic Video Service
Feedback