by Harnish P Patel  , Faidra Laskou  and Elaine M Dennison

Received: 15 February 2024;  Published: 23 January 2025;  doi: 10.21926/obm.geriatr.2501296

Sarcopenia is characterised by progressive and generalised decline in muscle strength, function, and muscle mass. Now recognised as a muscle disease, it is highly prevalent in older adults, with estimates of up to 30% in some populations. Sarcopenia has a complex multifactorial aetiology, including cellular and molecular changes, chronic disease, lower physical activity as well as nutritional deficiency. Sarcopenia is associated with a range of adverse physical and metabolic outcomes leading to disability, morbidit [...]

by Bin Ni  , Nidhi Sharma  , Ashley Rosko  , Don M. Benson  and Yvonne A. Efebera

Received: 12 April 2021;  Published: 09 July 2021;  doi: 10.21926/obm.transplant.2103148

Prior to the advent of anti-retroviral therapy (ART), autologous stem cell transplant (ASCT) was relatively contraindicated for multiple myeloma (MM) patients with human immunodeficiency virus (HIV) due to issues associated with stem cell harvest and the risk of opportunistic infections. With the widespread use of ART for control of HIV, ASCT is now the preferred treatment for relapsed lymphoma, the leading hematopoietic malignancy associated with HIV/AIDS. Hence, MM patients with HIV controlled by ART may benefit [...]

by Julia Caldwell  , Pamela Meredith  , Koa Whittingham  and Jenny Ziviani

Received: 07 March 2022;  Published: 20 July 2022;  doi: 10.21926/obm.icm.2203028

Positive perceptions of pregnancy are associated with better postpartum outcomes, including stronger relationship with baby. Although better self-reported emotional availability (EA-SR) is associated with greater attachment security with infants, research has not yet explored the relationship between prenatal maternal factors and EA-SR. The aim of the study was to explore the associations between prenatal variables (adult attachment, shame, compassion) and EA-SR at 3- and 6-months postpartum. A cross-sectional surv [...]

by Gabriela Martínez-Machado  , Laura Arely López-Gámez  , Litzy Yazmin Alvarado-Mata  , Roberto Muñoz-García  , Jenny Priscila Salinas-Mireles  , Ivan Artemio Corral-Guerrero  , Maria Jose Castro-Alonso  , Jazel Doménica Sosa-Martínez  , Miriam Paulina Luévanos Escareño  , Ayerim Yedid Hernández-Almanza  and Nagamani Balagurusamy

Received: 20 February 2025;  Published: 13 May 2025;  doi: 10.21926/jept.2502010

The global production of biomethane is rapidly emerging as a sustainable alternative to fossil fuels for energy generation. Biogas, where methane (CH4) is usually one of the main components, is generated through the anaerobic digestion (AD) of various organic substrates, including animal manure, organic wastes, and wastewater. The efficiency of the AD process depends on key operational parameters and reactor designs that optimize microbial activity and gas yield. However, inhibitory compounds such as heavy metals, [...]

by Nora B. Henrikson  , Paula R. Blasi  , Marlaine Figueroa Gray  , Lorella Palazzo  , Aaron Scrol  and Stephanie M. Fullerton

Received: 09 August 2022;  Published: 31 October 2022;  doi: 10.21926/obm.genet.2204167

People choose how and if to generate and disclose not just personal genomic data, but also multiple other types of personal health and non-health related data. To contextualize choices about genetic testing and genetic data disclosure, we explored perspectives of genomic data privacy and disclosure compared to other types of data. We conducted a qualitative focus group study with adult members of an integrated U.S. health system, using administrative data to stratify our sample by age and by race/ethnicity. Discuss [...]

by Vsévolod Mymrin  , Reinaldo H. G. Alarcon  , Marilia A. Guidolin  , Kirill Alekseev  , Rogerio J. Hultmann  , Walderson Klitzke  , Karina Q. Carvalho  , Fernando H. Passig  , Charles W.I. Haminiuk  and Rodrigo E. Catai

Received: 08 December 2022;  Published: 27 February 2023;  doi: 10.21926/cr.2301009

Methanol synthesis catalyst (MSC) waste was applied as the principal component (till 70 wt.%) of sustainable ceramics in composites with bauxite processing waste (RM), and waste foundry sand (FS). The results of the initial components' chemical interaction studies by a complex of methods (XRD, SEM/EDS/mapping, AAS and LAMMA) during heating demonstrated the synthesis of amorphous glasslike new formation, their filling of pores and compaction of the ceramic’s structure. In this case, a strong chemical and mechanical [...]

by Samhani Ismail  , Muhammad Hakimi Mohd Nashron  , Mohd Hanifah Jusoh  and Abdul Nawfar Sadagatullah

Received: 26 February 2025;  Published: 05 August 2025;  doi: 10.21926/obm.neurobiol.2503296

Chronic pain involves complex cortical and subcortical changes, suggesting that brain electrical activity may be a potential biomarker for nociceptive processing. Pain leaves its signature in the brain's oscillatory patterns, yet limited studies have explored the neurophysiological alterations associated with chronic pain. This review examines the pain detection method currently used in clinical settings, the potential of neurophysiological features to become brain oscillatory brain biomarkers, and their use in fut [...]

by Aghogho Ogwala  , Eugene Onori  , Cornelius Ogabi  , Oluwafunmilayo Ometan  , Yusuf Kayode  , Rasaq Adewemimo Adeniji-Adele  , Emmanuel Somoye  and Janet Odewale

Received: 13 September 2022;  Published: 05 December 2022;  doi: 10.21926/aeer.2204048

Ultraviolet (UV) and X-ray radiation are the primary causes of ionization that produce electron density in sufficient quantities to promote the propagation of satellite radio signals in the ionosphere. The electron densities suffer from spatio-temporal variations, and this poses different degrees of threats to satellite radio signals propagating through the ionosphere. We aimed to characterize the maximum electron density of the F2 layer (NmF2) in the middle-latitude ionosphere over Grahamstown, South Africa (Geogr [...]

by Krzysztof Wierzcholski

Received: 08 October 2020;  Published: 02 June 2021;  doi: 10.21926/rpm.2102023

This paper aims to highlight the result of a new progression of mathematical estimation methods of stochastic bio-hydrodynamic lubrication parameters for arbitrary, curvilinear, non-rotational, co-operating, living biological surfaces coated with phospholipid bi-layers. Movable, non-rotational, co-operating surfaces occur in various biological friction nods like the collar bone, the blade bone, the jump joint, and the wrist joint. Specifically, the author presents a synthetic and comprehensive estimation of stochas [...]

by Dimitris Kouzoudis  , Georgios Samourgkanidis  and Christos I. Tapeinos

Received: 12 December 2020;  Published: 06 April 2021;  doi: 10.21926/rpm.2102010

In the current work, to identify the bending mode harmonics, 30 microns thin magnetoelastic ribbons made of metallic glass are embedded inside 6 mm thick PLA plastic cantilever beams made by 3-D printing. This is possible because the ribbons are of magnetoelastic nature and thus change their mechanical state inducing a corresponding change in their magnetic state. The ribbons are placed at four different depths, starting with zero depth at the beam’s external surface all the way inside to the beam’s mid-plane. This [...]