by José C. Conesa

Received: 29 November 2021;  Published: 21 February 2022;  doi: 10.21926/cr.2201005

It is important to understand the band offsets between semiconductors, which are crucial to determine the direction of electron transfer at the interfaces. Two methods are normally used to determine the direction from the first principles: alternating slabs put in contact (without empty spaces between them) and separate calculations for each material surface in the presence of vacuum spaces. The first method may introduce distortions due to insufficient epitaxial match, which may lead to bandgap changes, and the se [...]

by Ashleigh Trapuzzano  , Sara Chizmar  , Lauren Wilda  and Nicole Dawson

Received: 03 April 2020;  Published: 27 September 2020;  doi: 10.21926/obm.geriatr.2003134

This study investigated the predictors of gait speed in community dwelling older adults while examining interplay between physical performance and cognition on comfortable and fast gait speed. Sixty-six community-dwelling older adults (mean age 80.8 71% female) completed the following: 30-Second Chair Stand (30-SCS), Functional Reach (FR), Flanker Task, Digit Symbol Substitution Test (DSST), and gait speed (comfortable and fast). Hierarchical linear regression examined the relationship of comfortable and fast gait [...]

by Robert Marx  and Lisa Burroughes

Received: 13 October 2018;  Published: 02 February 2019;  doi: 10.21926/obm.icm.1901009

Background: Training is generally not available for those wishing to deliver non 8 week Mindfulness Based Interventions (MBIs) adapted for specific contexts and populations. A new model for training in MBIs is developed with the following principle components: teaching on theory, participation in a practice, followed by teaching the practice and receiving feedback, and consultation and discussion of live mindfulness-based work. Methods: A quantitative and qualitative evaluation is presented of the experience of the [...]

by Victoria Gómez-Dos-Santos  , Vital Hevia-Palacios  , María Laura García-Bermejo  , Alberto Alcázar-González  , Miren Edurne Ramos-Muñoz  , Laura Salinas-Muñoz  , Elisa Conde-Moreno  , Alejandro Escobar-Peso  , Ana Belén Serrano-Romero  , Ana Saiz-González  , Miriam Menacho-Román  and Francisco Javier Burgos-Revilla

Received: 22 December 2020;  Published: 10 June 2021;  doi: 10.21926/obm.transplant.2102144

The efficacy and safety of using high concentrations of oxygen during hypothermic machine perfusion (HMP) have not been fully elucidated to date. This study investigated the impact of administering high concentrations of oxygen on renal function during HMP in a porcine donation after circulatory death (DCD), as well as the metabolic and biochemical effects of this method. A randomized nonblinded cohort study was established in a porcine transplant (KT) model mimicking Maastricht type III DCD under oxygen-supplement [...]

by Indrani Das  , Robyn Murphy  and Aaron Goldman

Received: 21 July 2022;  Published: 17 July 2023;  doi: 10.21926/rpn.2303012

Celiac disease is a prevalent autoimmune disorder with a rising incidence of 7.5% annually during the second half of the 20th century and the 21st century. Not all genetically susceptible individuals that carry the risk alleles HLA DQ2 and DQ8 go on to develop celiac disease, suggesting that there may be other environmental triggers that contribute to the development of celiac disease in genetically susceptible individuals. Gastroenteritis during infancy has been shown to be associated with increased risk of celiac [...]

by Ahmed Alawais  and Roger P West

Received: 15 April 2024;  Published: 09 August 2024;  doi: 10.21926/rpm.2403019

This paper describes a method to use solely recycled and by-product materials as constituents to form concrete that can be used in buildings structural applications. As concrete is one of the most important materials in human civilization, where it is used widely in construction, cement and aggregate the main components of concrete cause an emission of large amounts of carbon dioxide, which is the main cause of global warming. The production of one tonne of cement, for example, causes the emission of about 800 kg o [...]

by Giuseppe Cocco  and Philipp Amiet

Received: 05 February 2020;  Published: 19 March 2020;  doi: 10.21926/obm.geriatr.2001111

The present article summarizes the current state of understanding in geriatric cardiology in terms of the main developments in the field. The focus of the present review is on the therapeutics, into the specific characteristics of the elderly pa­tients dealing with the prevention of arterial hypertension, bradycardic arrhythmias, atrial fibrillation, coronary artery syndromes, valve heart diseases, and heart failure. Progress in the field of medicine has rendered possible to treat lethal cardiac diseases in the [...]

by Sonal Mishra  , Neha Kumari  , Varsha K. Singh  and Rajeshwar P Sinha

Received: 18 January 2023;  Published: 03 August 2023;  doi: 10.21926/aeer.2303041

Cyanobacteria have great potential as a platform for biofuel production because of their fast growth, ability to fix CO2 gas, and genetic tractability. They also preserve the sustainability of an ecosystem without harming the environment. High-performance biofuels made from cyanobacteria can be utilized as a base for the production of green energy. Although a lot of studies have been conducted where plants and crops are used as the source of energy, cyanobacteria have been reported to have a more efficient photosyn [...]

by Úrsula Oswald-Spring

Received: 06 November 2022;  Published: 06 June 2023;  doi: 10.21926/aeer.2302035

The present article studies the policy, numbers, and costs of disaster risk management (DRM) in Mexico, a country highly exposed to climate change, due to two oceans warming up. The PEISOR methodology facilitates interrelating complex interactions and pressures between the natural and the societal system (P), where dangerous effects (E) occur in extreme events, such as floods, landslides, and drought. The impacts (I) of global warming, the pressure of historical poverty, and vulnerable regions were affected by the [...]

by Luana Góes Soares  and Annelise Alves

Received: 14 December 2022;  Published: 17 April 2023;  doi: 10.21926/cr.2302016

The synthesis of fibers by electrospinning allows for obtaining nanostructures of one-dimensional materials with good flexibility, optical and catalytic properties, high surface area and porosity. They can be used in applications such as: catalysts, solar cells, fuel cells, membranes, and hydrogen batteries, among others. Here we emphasize that few reports in the literature describe the existing synergism between the optical and photocatalytic properties of TiO2, and the influence of this synergism on the formation [...]