Results 71 to 80 of about 505,119 (217)

Monitoring Changes in Sperm Concentration and Quality Help Improve Captive Breeding Outcomes of the Endangered Amphibian Rawlinsonia littlejohni

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 345, Issue 10, Page 1078-1090, December 2026.
ABSTRACT Amphibians are among the most threatened taxonomic groups, with many species experiencing rapid declines that have resulted in small, isolated populations vulnerable to inbreeding depression and reduced fertility. One major outcome of inbreeding is lowered fecundity, often linked to morphological changes in gametes.
Nadine Nolan   +6 more
wiley   +1 more source

Acknowledgement of receipt of letter sent to the Nelson Mandela Metropolitican Municipality by Mr M Mboya

open access: yes, 2006
In partnership for development in Africa: mathematics, science & technology education - NEPAD eLab project: Eastern Cape Province - Nelson Mandela Metropolitan ...
Ndoni, P S
core  

Development of a framework for advancing work‐integrated learning in agricultural management at higher education institutions in South Africa: A best‐fit synthesis‐informed conceptual framework

open access: yesNatural Sciences Education, Volume 55, Issue 2, December 2026.
Abstract Employers in the agricultural industry increasingly require graduates who can effectively apply theoretical knowledge in dynamic farming environments. However, higher education institutions often face challenges in providing authentic on‐farm learning experiences that prepare agricultural management students for professional practice in their ...
Lize du Preez   +2 more
wiley   +1 more source

Meaning‐in‐Action: A Theory of Symbolic Causality

open access: yesJournal for the Theory of Social Behaviour, Volume 56, Issue 4, December 2026.
ABSTRACT Theories of social behaviour often acknowledge that action is meaningfully organised, but they remain less precise about how meanings become causally efficacious in practice. This article develops a critical realist account of meaning‐in‐action.
Matthew Coetzee
wiley   +1 more source

Pocket Bios: Nelson Mandela [PDF]

open access: yes, 2019
This Pocket Bio about Nelson Mandela gives young readers a glimpse into the life of the man who spent his life fighting injustice in South Africa. He recognized the unfairness of Apartheid and formed the African National Congress, which peacefully ...
Hinckley, Kristie
core  

Differential Effect of Ivermectin on Intestinal Helminths in Multimmate Mouse (Mastomys natalensis)

open access: yesVeterinary Medicine and Science, Volume 12, Issue 6, November 2026.
Mastomys natalensis harbours gastrointestinal helminths of public health and food‐safety importance. This study identified five helminth taxa and assessed faecal egg counts after a single ivermectin dose. Egg counts declined substantially in treated rodents but changed little in controls over eight weeks.
Claus Thomas   +9 more
wiley   +1 more source

A systems thinking approach to eliminate delays on building construction projects in South Africa

open access: yesActa Structilia, 2011
t is obvious that the performance of firms and their market competitiveness hinge on project delivery time. Many approaches have been used to reduce the effect of the potential factors of delay on project delivery time.
Olatunji Aiyetan   +2 more
doaj  

Integrating Human Rights Into Food Systems Policy to Progress the Fulfillment of the Right to Adequate Food—Enablers, Barriers, and Windows of Opportunity

open access: yesWorld Food Policy, Volume 12, Issue 2, November 2026.
ABSTRACT Prevailing levels of hunger, malnutrition, and food insecurity—driven by conflict, global economic crises, and ecological destruction—are threatening fulfillment of the right to adequate food. The integration of human rights in food systems policies can address these challenges; however, progress in the adoption of human rights–based ...
Ellen Johnson   +4 more
wiley   +1 more source

Technology management in construction: Lessons for the practice of architecture

open access: yesActa Structilia, 2011
The relevance of managing technology to architectural practices in South African construction cannot be overemphasised. As major stakeholders in the construction industry with particular significant contributions in the property sector, practising ...
Heather Fouche   +2 more
doaj  

Electrification of go-kart with second-life lithium-ion batteries: Performance analysis and optimisation [PDF]

open access: yesMATEC Web of Conferences
This research paper presents the design, modelling, and performance analysis of an electric go-kart retrofitted with a second-life lithium-ion battery pack.
Ramasir Ushveer   +4 more
doaj   +1 more source

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