ORCID Profile
0000-0002-6728-8753
Current Organisations
CSIRO Black Mountain Laboratories
,
University of Pretoria
,
CSIRO
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: BMJ
Date: 15-01-2021
DOI: 10.1136/ARCHDISCHILD-2020-320892
Abstract: To determine whether the IntelliVue monitor (ECG plus Masimo pulse oximeter (PO)) displays heart rate (HR) at birth more quickly than Nellcor PO (PO alone) among infants of 29–35 weeks’ gestational age. Unmasked parallel group randomised (1:1) study. We planned to enrol 100 infants however, the study was terminated due to the COVID-19 pandemic when 39 infants had been enrolled (17 randomised to IntelliVue, 22 to Nellcor). We found no differences between the groups in the time to first HR display (median (IQR) IntelliVue ECG 49 (33, 71) vs Nellcor 47 (37, 86) s, p .999), in the proportion who had a face mask applied for breathing support, or in the time at which it was applied. Infants monitored with IntelliVue were handled more frequently and for longer. IntelliVue ECG did not display HR more quickly than Nellcor PO in preterm infants. We found no differences in the rate of or time to intervention between groups. Our study was terminated early so these findings should be interpreted with caution. ISRCTN16473881
Publisher: Elsevier BV
Date: 07-2014
Publisher: MDPI AG
Date: 22-09-2020
DOI: 10.3390/AGRICULTURE10090420
Abstract: Modelling and multiple linear regression were used to explore the reason for low maize yield in the Atebubu-Amantin and West M rusi Districts of Ghana, West Africa. The study evaluated maize yields on twenty farms against measures of soil fertility, agronomic attributes and soil water availability. Correlations between yield, soil fertility, rain, crop density, and weed biomass, were low, and no single factor could explain the low yields. A 50-year virtual experiment was then set up using the Agricultural Production Systems Simulator (APSIM) to explore the interactions between climate, crop management (sowing date and nitrogen fertilization) and rooting depth on grain yield and nitrate (NO3-N) dynamics. The analysis showed that a lack of optimal sowing dates that synchronize radiation, rainfall events and nitrogen (N) management with critical growth stages explained the low farm yields.
Publisher: Informa UK Limited
Date: 21-04-2017
Publisher: Elsevier BV
Date: 12-2021
DOI: 10.1016/J.ANIMAL.2021.100392
Abstract: Ruminant red meat production systems around the world often include a grain feeding phase. The role of red meat in the food system is therefore often discussed in terms of the food vs feed debate, as well as invoking the comparatively poor feed conversion efficiency of ruminants and climate impacts from enteric methane. The concept of net protein contribution (NPC) incorporates the quality attributes of protein produced by livestock systems into estimates of the efficiency of production systems. We applied the NPC method to two Australian beef supply chains, i) Grass-fed and ii) Grain-finished beef, using an established model of ruminant grazing systems (GrassGro®) and these are reflective of beef production systems in other countries. The beef supply chains evaluated did not compete with humans for protein. The Grain-finished beef supply chain, while positively contributing to human protein requirements (NPC value 1.96), had markedly lower NPC values than the Grass-fed system (NPC value 1 597). However, Grass-fed beef production systems have a higher methane intensity than the Grain-finished supply chain. The two ex les of pasture-based beef production systems examined provide a positive net protein contribution to human food supply, even with extended periods of finishing on grain-based diets. This is achieved by ruminant grazing on pastures converting low-quality forage into high value human edible protein. The efficiency of protein production varies according to the system design, and other considerations such as land use and enteric methane production are elements that need consideration in the overall assessment of the production footprint.
Publisher: Academy of Science of South Africa
Date: 30-04-2013
DOI: 10.4314/WSA.V39I2.2
Publisher: Wiley
Date: 2014
Publisher: International Society for Horticultural Science (ISHS)
Date: 09-2013
Publisher: International Society for Horticultural Science (ISHS)
Date: 09-2013
Publisher: Springer Science and Business Media LLC
Date: 24-04-2020
Publisher: BMJ
Date: 28-01-2022
Publisher: Elsevier BV
Date: 10-2018
Publisher: Informa UK Limited
Date: 26-03-2015
Publisher: International Society for Horticultural Science (ISHS)
Date: 09-2013
Publisher: Elsevier BV
Date: 05-2008
Publisher: International Society for Horticultural Science (ISHS)
Date: 09-2019
Publisher: Elsevier BV
Date: 04-2013
Publisher: International Society for Horticultural Science (ISHS)
Date: 03-2013
Location: Australia
No related grants have been discovered for Yacob Beletse.