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Epidemiology and anatomic distribution of colorectal cancer in South Africa.
S Afr J Surg
December 2024
Centre for Global Surgery, Department of Global Health, Stellenbosch University, South Africa.
Background: Colorectal cancer (CRC) is the fifth most common cancer in sub-Saharan Africa (SSA) and the third most common in South Africa (SA). CRC characteristics in SSA are not well described. The aim is to describe patient characteristics and anatomic location of colorectal adenocarcinoma (CRC-AC) in SA.
View Article and Find Full Text PDFEvaluating low NO hydrogen engines designed for off-road and construction applications.
Environ Sci Process Impacts
January 2025
Wolfson Atmospheric Chemistry Laboratories, University of York, Heslington, York, YO10 5DD, UK.
Hydrogen internal combustion engines offer a near-term decarbonisation pathway for hard to electrify sectors such as non-road mobile machinery (NRMM). However, few hydrogen-specific engines have ever been developed with the twin-goals of maximising low carbon energy efficiency and delivering air quality co-benefits. We present analyses of dynamometer-derived nitrogen oxides (NO) tailpipe emissions from four variants of a ∼55 kW four-cylinder port fuelled injection spark ignition hydrogen internal combustion engine (H2ICE) suitable for a range of uses within the NRMM industry.
View Article and Find Full Text PDFThe Potential Impacts of Single-use Plastic During the COVID-19 Pandemic.
Disaster Med Public Health Prep
January 2025
Department of Clinical Research, Northern Light Eastern Maine Medical Center, Bangor, ME, USA.
Objectives: Plastics in the environment have moved from an "eye-sore" to a public health threat. Hospitals are one of the biggest users of single-use plastics, and there is growing literature looking at not only plastics in the environment but health care's overall contribution to its growth.
Methods: This study was a retrospective review at a 411-bed level II trauma hospital over 47 months pre and post the last wave of COVID-19 affecting this hospital.
A Manta Ray-Inspired Biosyncretic Robot with Stable Controllability by Dynamic Electric Stimulation.
Cyborg Bionic Syst
July 2022
State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China.
Biosyncretic robots, which are new nature-based robots in addition to bionic robots, that utilize biological materials to realize their core function, have been supposed to further promote the progress in robotics. Actuation as the main operation mechanism relates to the robotic overall performance. Therefore, biosyncretic robots actuated by living biological actuators have attracted increasing attention.
View Article and Find Full Text PDFSystematics of the complex, with evidence for 3 additional Afrotropical bat species.
J Mammal
February 2025
Estación Biológica de Doñana (CSIC), Avda. Américo Vespucio 26, Seville 41092, Spain.
Roughly a third of all horseshoe bat species (Rhinolophidae: ) are found in Africa, where a recent continent-wide genetic survey suggested the presence of both undescribed and apparently invalid species. Here, we focus on the species complex and the recent elevation of Peters, 1852, to species rank. That action created ambiguity in the taxonomy of East African members of the group-are both Martin, 1838, and sympatric in East Africa or is another, unnamed species present there? Here, we refine genetic, morphological, and behavioral characterizations of and its erstwhile synonyms with samples from the vicinity of their type localities.
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