by Lin Xie  and Donald Kirk

Received: 09 June 2021;  Published: 16 September 2021;  doi: 10.21926/cr.2103003

Fe-rich alloys have been widely studied as catalyst materials for the cathodic oxygen reduction reaction (ORR) in hydrogen fuel cells, and many have shown high activities. The stability of Fe-rich catalysts has also been researched, and some studies have shown promising results using an accelerated stress test (AST), which uses a potential cycling method. However, for commercial fuel cell applications, such as standby power systems, the catalyst has to tolerate a high potential for a long period, which can not be r [...]

by E. Papaconstantinou  , V. Quick  , E. Vogel  and S. Coffey

Received: 09 August 2019;  Published: 31 October 2019;  doi: 10.21926/obm.neurobiol.1904044

Background: Post-secondary students are at increased risk for sleep problems and poor eating behaviours that overtime may lead to negative health outcomes later in life. However, limited research has examined associations of sleep quality with eating behaviours and eating competence (e.g., being positive, flexible, and comfortable with eating and getting enough enjoyable and nutritious foods) among Canadian post-secondary students. Methods: Using a cross-sectional study design, participants completed an online surv [...]

by Ray Marks

Received: 25 March 2019;  Published: 28 March 2019;  doi: 10.21926/obm.geriatr.1901042

Depression and Aging: Role of Social Support

by Kenneth J. McLeod

Received: 24 April 2023;  Published: 18 September 2023;  doi: 10.21926/obm.geriatr.2303249

Chronically low blood pressure in older adults is associated with significantly increased long-term risks of dementia and all-cause mortality risk. Yet low blood pressure is generally not treated until an individual begins to experience the acute symptoms arising from very low cerebral perfusion. However, these acute symptoms, such as dizziness, balance difficulty, syncope, increased fall occurrence, vision impairment, and nausea, begin to occur only at very low blood pressure levels, such that mean arterial pressu [...]

by Yi-Chun Hsu  , Min-Ze Lu  and Chang-Ming Liaw

Received: 18 December 2020;  Published: 28 April 2021;  doi: 10.21926/jept.2102018

This paper proposes a Wind Turbine Emulator (WTE) using an Indirect Field Oriented (IFO) Induction Motor (IM). The IM drive can be controlled as a conventional prime mover in speed mode, or a wind turbine in torque-speed mode via robust observed torque control. This paper presents key issues for establishing a high-performance IFO IM drive. Further, this study develops a wind turbine load Interior Permanent-Magnet Synchronous Generator (IPMSG) followed by a three-phase Vienna Switch-Mode Rectifier (SMR). It receive [...]

by Jose A. Morillas  and Sherif Beniameen Mossad

Received: 24 October 2019;  Published: 18 November 2019;  doi: 10.21926/obm.transplant.1904091

Toxoplasmosis in liver transplantation (LT) is uncommon, especially in the current era of universal prophylaxis with trimethoprim-sulfamethoxazole (TMP-SMX) for Pneumocystis jirovecii pneumonia (PJP). Here we present a case of a 55-year-old woman LT recipient, on dapsone or PJP prophylaxis due to sulfa allergy, who presented on day 25 after LT with fever, diarrhea and abdominal pain. Initially she was diagnosed with cytomegalovirus-associated colitis and was treated with intravenous ganciclovir, with good clinical [...]

by Emily Roberts  , Greg Clare  , Mahendran Balasubramanian  and Quinn Button

Received: 19 July 2022;  Published: 27 December 2023;  doi: 10.21926/obm.geriatr.2304264

The global population of adults 65 years of age and older will increase dramatically over the next several decades, presenting economic and social challenges requiring sustainable solutions. Aging is a process in which everyone is already involved, it is a lifelong experience not just a later life occurrence. Changing world demographics illustrate that people are living longer, among the world’s young people, survival to age 80 is expected to be commonplace. This new found “longevity dividend” needs to be maximized [...]

by Jack Deacon  , Clare Northover  , John King  and Chris Irons

Received: 21 September 2021;  Published: 23 November 2021;  doi: 10.21926/obm.icm.2104050

Compassion Focused Therapy (CFT) has increasingly been shown to have a positive impact for people experiencing a range of difficulties, and online self-help formats could provide a way of increasing its accessibility and scalability. This study explored adult participants’ subjective experiences of engaging with online self-compassion training drawn from Compassionate Mind Training (CMT) and CFT. Semi-structured interviews were conducted with 15 participants who had completed online self-compassion training, [...]

by Francesco Calvani  , Emanuele Bartoletti  , Giancarlo Folchitto  , Stefania Santini  , Michele Fontevecchia  and Alessandra Alhadeff

Received: 06 April 2020;  Published: 11 May 2020;  doi: 10.21926/rpm.2002011

Skin regeneration is a multidisciplinary topic that involves plastic surgery, aesthetics, and dermatology. In the last few years, several molecules have been used to prevent or delay the skin aging process. Recently, promising investigations on novel β-1,3/1,6-glucan-based treatments, associated with sodium hyaluronate, have demonstrated the induction of a naïve biological stimulus in soft tissues. Serum Revitalizing Face (Lot 00118a0051 of 11/19/2018 approved by the Italian Ministry of Health as a Medical Device-C [...]

by Anne-Marie Laberge  and Wylie Burke

Received: 30 July 2017;  Published: 21 September 2017;  doi: 10.21926/obm.genet.1703006

Genetic screening is the process of systematically evaluating a defined population for genetic conditions or predispositions, in the hope of providing benefit to those with a positive result. With advances in sequencing technology, genetic screening is moving from phenotype-based to genotype-based testing. Although sequencing technology offers expanded opportunities for early identification of disease, the availability of a suitable and acceptable test is not a sufficient justification to proceed: established crite [...]