by Krzysztof Wierzcholski  and Jacek Gospodarczyk

Received: 19 December 2022;  Published: 27 March 2023;  doi: 10.21926/rpm.2301013

This paper presents new non solved, scientific research directions and their applications in contemporary non-conventional lubrication problems of the bio-surfaces domain. Here are described new research scientific trends and research problem solutions of hydrodynamic lubrication for living tissue, human skin and human cartilage joints surfaces. At first in introduction is described the state of the art, a new purpose of anticipate research and the bio-tribology connections with other scientific domains are documen [...]

by Ana Valado  , Márcia Morais  , Stephanie Fortes  , Joana Rosado  , João Paulo Figueiredo  and Armando Caseiro

Received: 20 November 2023;  Published: 21 May 2024;  doi: 10.21926/obm.icm.2402028

Hydrotherapy is highly recommended for older adults because it offers warmth and support, so people with pain or reduced mobility and balance can move and exercise more freely compared to regular physical activity. The high plasma antioxidant capacity of uric acid in neutralizing oxidative species and the importance of nitric oxide (NO) in vasodilation and inflammatory response are relevant in older adults. This work aimed to evaluate hydrotherapy's effect on uric acid and NO concentrations in a population aged ≥ 6 [...]

by Ana Paula Leopercio  , Christini Emori  , Elisabete Calore Neiva  , Ana Lucia Silva Souza  , Ana Cristina Amaral  , Gustavo Almeida Vieira  , Raimundo Araujo Gama  , Jose Osmar Medina-Pestana  and Maria Lúcia Ferraz

Received: 22 June 2022;  Published: 26 October 2022;  doi: 10.21926/obm.transplant.2204168

Hepatitis B virus (HBV) infection is frequent among patients with chronic kidney disease (CKD). HBV reactivation after kidney transplant (KT) is more common in patients with HBsAg+; however, it can also occur in previously infected individuals, particularly those with HBsAg negative and total antiHBc positive (HBsAg-/antiHBcT+). However, reactivation in this population has scarce and conflicting data. This study aimed to assess the reactivation risk in KT recipients with previous HBV infection (antiHBcT+). A retros [...]

by Leonardo Vaz Moreira Magalhães  , Anna Silvia Palcheco Peixoto  , Gustavo Garcia Manzato  and Barbara Stolte Bezerra

Received: 30 September 2022;  Published: 07 February 2023;  doi: 10.21926/aeer.2301019

This paper presents a procedure for risk assessment for hydrological disasters considering the threshold rainfall and environmental and social criteria. A case study was carried out to test its feasibility in the northern region of the State of São Paulo, Brazil. The advantage of this procedure is that it only uses data available on government institutions and websites. For this reason, other regions and countries can easily adapt the procedure to their reality. Initially, the hydrological disasters were obtained i [...]

by Herbert Van Kruiningen

Received: 05 April 2019;  Published: 30 September 2019;  doi: 10.21926/obm.hg.1903036

by Aml Labib  , Jitesh Jeswani  and Durga AK Kanigicherla

Received: 26 June 2023;  Published: 13 October 2023;  doi: 10.21926/obm.transplant.2304199

IgAN is a major cause of end-stage kidney disease (ESKD) leading to kidney transplantation in a significant proportion of patients. However, its recurrence in transplanted kidneys can lead to graft loss. The rate of graft loss attributable to IgAN after transplantation is variably reported in different retrospective cohorts. Previous reports describe recurrence rates of 22-58% with a 1.3% to 16% rate of graft loss. Accurate diagnosis and prediction of graft loss are important for planning effective therapies to imp [...]

by Nadia A. Abdelmegeed Abdelwahed  , Mohammed A. Al Doghan  and Bahadur Ali Soomro

Received: 13 November 2023;  Published: 11 March 2024;  doi: 10.21926/obm.neurobiol.2401212

In this study, the researchers explore the effects of COVID-19-related challenges, such as fear and anxiety about COVID-19, the uncertainty of COVID-19, and the recognition of business opportunities for entrepreneurial intentions and business startups. This study used quantitative methods and based their findings on 278 usable samples collected from Egyptian entrepreneurs. Employing the Structural Equation Model (SEM) through SmartPLS4 shows that fear and anxiety arising from the COVID-19 pandemic harm entrepreneur [...]

by Naira Sahakyan  and Margarit Petrosyan

Received: 10 June 2022;  Published: 08 October 2022;  doi: 10.21926/obm.neurobiol.2204140

The present article describes some characteristics of the effect of essential oil (EO) extracted from Ziziphora clinopodioides harvested from Armenian highlands on microglial cell lines (BV-2 wild-type (WT) and acyl-CoA oxidase1 (ACOX1)-deficient (Acox1–/–) cells). The mutant cell line was used as a model to investigate cellular oxidative damage following EO treatment. The main components of the tested EO were pulegone, isomenthone, 1,8-cineole, piperitone, and neomenthole, with concentrations of 42.1%, [...]

by Hsuan-Wei Chen  , Hsuan-Hwai Lin  , Yu-Lueng Shih  , Tsai-Yuan Hsieh  and Jung-Chun Lin

Received: 23 February 2020;  Published: 30 March 2020;  doi: 10.21926/obm.hg.2001044

by Vesna Nikolić

Received: 31 March 2024;  Published: 09 April 2024;  doi: 10.21926/cr.2402004