Table of Content

Open Access Original Research

A Simplified Optimization Model for Sizing Proton-Exchange Membrane Fuel Cells

Received: 03 June 2020;  Published: 24 July 2020;  doi: 10.21926/jept.2003011

Abstract

The fluctuations in the cost of energy coupled with the gradual decrease in natural resources (i.e., oil, natural gas, coal) and the environmental issues caused by the extensive use of fossil fuels, demand the urgent need for the development of advanced and clean energy systems. The European Union has requested new measures to target climate and energy deterioration by developing renewable energy sources by 2030. The stochastic character of the energy sources and the fluctuation in demand for the energy systems pos [...]

2228 11855

Open Access Research Article

Electrodermal Correlates of Hypnosis: Current Developments

Received: 07 February 2020;  Published: 01 April 2020;  doi: 10.21926/obm.icm.2002017

Abstract

Hypnosis has proven to be an effective treatment in disorders that affect the autonomic nervous system (ANS). However, the studies investigating the nature of its effect on the ANS have reported contradictory results. Measurement of electrodermal activity (EDA) is an objective way to assess the activity of the sympathetic branch of the ANS. We aim to elucidate the effects of hypnosis on EDA. Here, we report the results of two studies, both investigating the psychophysiological effects of hypnosis.In the first exper [...]

1994 11852

Open Access Research Article

Wave Propagation and Scattering due to Debonding in CFRP Strengthened Reinforced Concrete Beams

Received: 28 May 2020;  Published: 27 August 2020;  doi: 10.21926/rpm.2003020

Abstract

Carbon fibre reinforced polymer (CFRP) systems as sheets or plates are commonly used to strengthen and retrofit damaged reinforced concrete beams. In general, the bond between the FRP element and concrete defines the effectiveness of the externally bonded FRP materials. In most cases, the interface bonding behaviour is usually tested via static loading conditions. In this paper, the bonding is verified under dynamic conditions. Wave propagation is modelled in delaminated CFRP strengthened reinforced concrete beam. [...]

2143 11851

Open Access Case Report

Auriculotherapy for Intractable Hiccups-A Case Report

Received: 22 March 2019;  Published: 04 June 2019;  doi: 10.21926/obm.icm.1902034

Abstract

A 16 year old girl was evaluated for intractable hiccups for 6 six months, with a prior negative clinical and laboratory evaluation, and without any improvement with a variety of folk and medicinal therapies. A single treatment session of auriculotherapy produced a full clinical remission.

2135 11843

Open Access Review

Application of Microfluidic Biochips for Human Islet Transplantation

Received: 08 November 2018;  Published: 21 December 2018;  doi: 10.21926/obm.transplant.1804034

Abstract

In this review, we discuss the application of microfluidic devices in studying the physiology and pathophysiology of human islets and beta-cells, especially its application for human islet transplantation. Human islet transplantation is a promising therapy for Type I diabetes; however, the islet transplant outcomes for achieving complete insulin independence are far from perfect and face many challenges. This review focuses on the microfluidic devices developed in our laboratory, which can address these challenges [...]

1820 11843

Open Access Original Research

The Impact of Psychological Stress on Personal Income, Physical Health and Entrepreneurial Intentions among Entrepreneurs

Received: 19 September 2023;  Published: 04 January 2024;  doi: 10.21926/obm.neurobiol.2401205

Abstract

Entrepreneurial intention plays a pivotal role within entrepreneurship ecosystems, acting as a catalyst for economic growth and innovation by inspiring individuals to embrace entrepreneurship as a viable career pursuit. The present research delves into the intricate dynamics between stress, entrepreneurial intention, personal income, and physical health within Egypt's entrepreneurial landscape. Grounded in a quantitative analysis of 286 valid samples and utilizing SmartPLS 4, this study unveils compelling insights. [...]

2197 11831

Open Access Case Report

Constitutional Partial Proximal Trisomy 14q11.2 to 14q21: Two New Moroccan Cases and Review of the Literature

Received: 25 July 2018;  Published: 22 July 2019;  doi: 10.21926/obm.genet.1903085

Abstract

Background: A report of two new Moroccan cases with polymalformative syndrome, in which we identified similar but not identical sSMCs derived from chromosome 14. Methods: Conventional karyotype and MULTI-FISH. Results: +del(14)(q21.1) in the first case and +del(14)(q21.2) in the second. Conclusions: Constitutional partial trisomy 14 has an expanded clinical spectrum as one case from the literature was associated with gonadal tumor development. Similar cases, including the ones reported here, need to be carefully fo [...]

2361 11827

Open Access Case Report

Generation of Unexpected Allele-Specific Anti-HLA Antibodies after the Transplantation of a Fully-Matched Kidney Allograft and the Diagnostic Approaches Required for Excluding Harmful Effects after Subsequent Renal Regrafts

Received: 26 January 2021;  Published: 02 June 2021;  doi: 10.21926/obm.transplant.2102142

Abstract

The specification of anti-human leukocyte antigen (HLA) antibodies is an important task for patients awaiting kidney allografts. Especially the patients immunized in previous transplantations, transfusions, or pregnancies must be carefully observed, since grafting patients with HLA antigens/phenotypes recognized by their pre-formed antibodies are the main cause of harmful hyperacute and acute rejection. The complement-dependent lymphocytotoxicity-based de facto (physical) crossmatching (CDC-CM) has thus been implem [...]

2029 11815

Open Access Short Review

Perovskite Oxide Thermoelectric Module - A Way Forward

Received: 27 July 2023;  Published: 11 October 2023;  doi: 10.21926/cr.2304024

Abstract

In the era of renewable and sustainable energy, perovskite materials remain pioneers as energy harvesting materials, be it thermoelectric waste heat harvesting or photovoltaic solar cell application. Oxide perovskite material is an emerging thermoelectric material in solving energy shortage issues through waste heat recovery. The chemical and structural stabilities, oxidation resistance, and cost-effective and straightforward manufacturing process are a few advantages of the oxide-based thermoelectric materials. Th [...]

2327 11808

Open Access Review

Aging High: Opioid Use Disorder in the Elderly Population

Received: 13 November 2018;  Published: 17 April 2019;  doi: 10.21926/obm.geriatr.1902047

Abstract

As the 80 million “baby boomers” reach retirement, they bring their relaxed attitudes toward drug use to create a clinically significant population of geriatric drug abusers. Opioid use disorder (OUD) brings with it special considerations in the elderly population: age-related changes to drug disposition, brain changes in the elderly, polypharmacy, and the likelihood of comorbid conditions (such as cardiovascular or pulmonary diseases) and pain syndromes. Thirteen percent of patients in a New York city methadone cl [...]

1892 11796

TOP