by Ibikunle Olalekan OGUNDARI

Received: 08 September 2022;  Published: 03 April 2023;  doi: 10.21926/jept.2302013

This study examined the techno-economic specifications for a Waste-to-Suburban Cooking Energy critical infrastructure project in Southwestern Nigeria. Technological and project economic data for the W2E project were obtained from strategic sources and energy project foresight/analysis framework used. The results showed residential upgraded biogas-for-cooking demand of approximately 10,243 m3/month, and municipal solid waste (MSW) input of approximately 80 tonnes/month. The planned biogas plant had estimated costs o [...]

by Fuad Bin Nasir  and Jin Li

Received: 30 July 2024;  Published: 17 October 2024;  doi: 10.21926/aeer.2404020

Increasing urban wastewater and rigorous discharge regulations pose significant challenges for wastewater treatment plants (WWTP) to meet regulatory compliance while minimizing operational costs. This study explores the application of several machine learning (ML) models specifically, Artificial Neural Networks (ANN), Gradient Boosting Machines (GBM), Random Forests (RF), eXtreme Gradient Boosting (XGBoost), and hybrid RF-GBM models in predicting important WWTP variables such as Biochemical Oxygen Demand (BOD), Tot [...]

by Agnes C. Nkele  , Imosobomeh L. Ikhioya  , Chinedu P. Chime  and Fabian I. Ezema

Received: 29 May 2023;  Published: 18 July 2023;  doi: 10.21926/jept.2303024

In recent times, renewable energy resources have been greatly researched because of the increasing concern to minimize global warming and meet energy demands. Energy storage systems have become useful tools for sustainability and meeting energy needs. Solar energy has proven in recent times to be the primary and most prevalent option due to its environmental friendliness, availability, and minimal pollution. Effective utilization of available energy resources has led to developing new alternative energy devices lik [...]

by Nidhi Sharma  and Yvonne Efebera

Received: 26 October 2020;  Published: 25 March 2021;  doi: 10.21926/obm.transplant.2101139

Graft-versus host disease is one of the major causes of death in patients undergoing allogeneic hematopoietic stem cell transplantation. Major contributing factors to severity of graft-versus host disease include HLA mismatch, conditioning regimen intensity, age of donor and recipient, source of stem cell, and donor type. Strategies and clinical trials are ongoing to reduce the incidence of graft-versus host disease, and to improve on the survival outcome of patients with graft-versus host disease, Research efforts [...]

by Abdol Aziz Shahraki

Received: 18 September 2021;  Published: 17 December 2021;  doi: 10.21926/aeer.2104035

This research suggests optimal planning and designing techniques for tourism complexes in urban master planning. Firstly, it explains the importance of the tourism industry through the theories of scholars and experts. It also emphasizes the connection between the development of urban economies and the tourism industry. This helps integrate the tourism industry and comprehensive regional/urban planning. It starts with planning and designing the tourism complexes in the early stages of the municipality’s master plan [...]

by Gabriele Saretzki

Received: 21 May 2025;  Published: 09 September 2025;  doi: 10.21926/obm.geriatr.2503324

Telomeres are repetitive structures at the ends of linear chromosomes. Due to incomplete DNA replication at the end of linear DNA molecules, the so called “end replication problem”, telomeres shorten consecutively during cell division. In addition, telomere sequences are highly susceptible to oxidative stress damaging telomeres and resulting in their dysfunction even in non-dividing cells. Telomere shortening has been identified as one of the underlying causes for replicative senescence that can also contribute to [...]

by Nathan S. Jiang  , Byron Newton  and Xuezhi Jiang

Received: 28 June 2021;  Published: 19 October 2021;  doi: 10.21926/obm.geriatr.2104181

Osteoporosis is one of the most common disorders around the world. Osteoporotic fracture especially hip fracture are associated with an increased mortality rate in elders. However, elders with osteoporosis or at high risk of fractures remain largely underdiagnosed and undertreated. The screening, diagnosis, and treatment of osteoporosis must be improved to maintain pace with its fast-growing prevalence. This review will cover risk factors of osteoporosis, screening and diagnosis tools, newfound advancements, curren [...]

by K. Jason Crandall  , Matthew Shake  and Uta Ziegler

Received: 11 April 2019;  Published: 04 July 2019;  doi: 10.21926/obm.icm.1903041

Background: Older adults experience normative age-graded declines in physical and cognitive performance and many must manage one or more chronic conditions. Exercise programs can help to improve both their physical health and their knowledge, skill, and confidence in managing aspects of their own healthcare, yet a significant barrier is motivating them to adhere to such programs. The purpose of this investigation was to evaluate the impact of a game-centered mobile app (Bingocize®) on older adults' knowledge [...]

by Kathy Carter  , John Campbell  , Peyton Shoemaker  , Elisabeth Dichiara  , Neel Patel  and John Caruso

Received: 09 December 2021;  Published: 23 February 2022;  doi: 10.21926/rpn.2201005

Space flight imposes a myriad of adverse effects upon the human body. Improved in-flight nutritional strategies help mitigate those adverse effects. This review examines how space flight changes human physiology, and how improved in-flight nutritional strategies may address the unique dietary needs created by microgravity exposure. Dietary approaches and recommendations to address those needs are discussed. This review also describes food sustainability methods for long-term manned space flight, how precision nutri [...]

by Anouk A. J. Hamers  , Sunil K. Joshi  and Asha B. Pillai

Received: 29 September 2018;  Published: 31 January 2019;  doi: 10.21926/obm.transplant.1901044

The success of tissue transplantation from a healthy donor to a diseased individual (allo-transplantation) is regulated by the immune systems of both donor and recipient. Developing a state of specific non‐reactivity between donor and recipient, while maintaining the salutary effects of immune function in the recipient, is called “immune (transplantation) tolerance”. In the classic early post‐transplant period, minimizing bidirectional donor ←→ recipient reactivity requires the administration [...]