South African Journal of Science and Technology最新文献

Strukturelevergelyking-model om die kritieke veranderlikes wat verband hou met die aanvaarding van slimkaarttegnologie in Suid-Afrikaanse openbare gesondheidsorg te ontleed 结构变革模型：剖析与南非公共医疗保健领域接受智能卡方法有关的关键变革特征

South African Journal of Science and Technology Pub Date : 2023-06-01 DOI: 10.36303/satnt.2023.42.1.934

L Malungana, L Motsi

引用次数: 0

Gesondheidsevaluasie van stedelike eike ( Quercus robur L.) met behulp van fisiologiese parameters: ’n Suid-Afrikaanse gevallestudie 用生物学参数评估栎树的生长状况：苏南非洲的一项研究

South African Journal of Science and Technology Pub Date : 2023-06-01 DOI: 10.36303/satnt.2023.42.1.932

Soané Ludick, Jacques M Berner, Roelof D Coertze, Sarel S Cilliers

引用次数: 0

Sirkoon as voerstof vir sirkoniumgebaseerde chemikalieë, keramieke, die metaal en sy legerings: ‘n Oorsigartikel 作为硒基化学品、陶瓷、这些金属和硒合金的原料的硒铁：一种新的材料

South African Journal of Science and Technology Pub Date : 2023-06-01 DOI: 10.36303/satnt.2023.42.1.963

SJ Lubbe, PL Crouse

引用次数: 0

Structural equations model to analyse the critical variables related to smart card technology adoption in South African public healthcare 结构方程模型分析与南非公共医疗保健采用智能卡技术相关的关键变量

South African Journal of Science and Technology Pub Date : 2023-06-01 DOI: 10.36303/satnt.2023.42.1.934e

L. Malungana, L. Motsi

引用次数: 0

Zircon as feedstock for zirconium chemicals, ceramics, the metal and alloys: A review 锆石作为锆化工、陶瓷、金属及合金原料的研究进展

South African Journal of Science and Technology Pub Date : 2023-06-01 DOI: 10.36303/satnt.2023.42.1.963e

SJ Lubbe, PL Crouse

引用次数: 0

Ondersoek na energiekoste van die inkorporering van ’n latentehitte-termiese-energieopbergstelsel in ’n Suid-Afrikaanse koelkamer 在南非冷室中采用潜热白蚁储能系统后的能源成本研究

South African Journal of Science and Technology Pub Date : 2023-06-01 DOI: 10.36303/satnt.2023.42.1.926

BT Radebe, Z Huan

引用次数: 0

Investigation of energy costs for incorporating a latent heat thermal energy storage system into a South African cold room 将潜热热能储存系统纳入南非冷室的能源成本调查

South African Journal of Science and Technology Pub Date : 2023-06-01 DOI: 10.36303/satnt.2023.42.1.926e

BT Radebe, Z Huan

引用次数: 0

Die eFundi leerbestuurstelsel as kommunikasie- en verhoudingsbou-instrument 电子基金学习系统作为沟通和建立关系的工具

South African Journal of Science and Technology Pub Date : 2016-01-01 DOI: 10.4102/SATNT.V35I1.1390

M. Mays, M. N. Wiggill

引用次数: 2

The integration of Mathematics, Science and Technology in early childhood education and the foundation phase: The role of the formation of the professional identities of beginner teachers 数学、科学与技术在幼儿教育与基础阶段的整合:初级教师专业认同形成的作用

South African Journal of Science and Technology Pub Date : 2015-08-31 DOI: 10.4102/SATNT.V34I1.1300

M. Botha, E. Bornman

{"title":"The integration of Mathematics, Science and Technology in early childhood education and the foundation phase: The role of the formation of the professional identities of beginner teachers","authors":"M. Botha, E. Bornman","doi":"10.4102/SATNT.V34I1.1300","DOIUrl":"https://doi.org/10.4102/SATNT.V34I1.1300","url":null,"abstract":"This article focuses on the professional identity formation of six beginner teachers (three in early childhood education and three in the foundation phase), involved in the teaching of Mathematics, Science and Technology (MST). Attention is in particular being paid to the role of professional identity in how they applied innovative teaching methods such as enquiry-based teaching. The study is based on the personal narratives of the six teachers, regarding their own learning experiences in MST, the impact of their professional training at an institution of higher education, as well as their first experiences as MST teachers in the workplace. A qualitative research design was applied and data was obtained through visual (photo collages) and written stories, observation and interviews. Whilst all the teachers held negative attitudes towards Mathematics, this situation was turned around during their university training. The three teachers in early childhood education experienced their entrance to the profession as positive, due mainly to the support of colleagues in their application of innovative teaching methods. Two teachers in the foundation phase, however, experienced the opposite. The findings emphasise the complex processes in the moulding of a professional teacher identity and how teaching practices are influenced by these processes.","PeriodicalId":30428,"journal":{"name":"South African Journal of Science and Technology","volume":"9 1","pages":"10"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70517386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Influence of intense training program on cardio stress index 高强度训练对心脏应激指数的影响

South African Journal of Science and Technology Pub Date : 2014-11-13 DOI: 10.4102/SATNT.V33I1.1180

P. D. Toit, A. Gibson, P. Wood, C. Grant, K. Grimes, A. Tope, C. J. V. Rensburg, J. M. Rooyen, A. Mckune, Evangeline Nortje, L. Fletcher, Ronél Ferreira, A. Joubert, A. Stander

{"title":"Influence of intense training program on cardio stress index","authors":"P. D. Toit, A. Gibson, P. Wood, C. Grant, K. Grimes, A. Tope, C. J. V. Rensburg, J. M. Rooyen, A. Mckune, Evangeline Nortje, L. Fletcher, Ronél Ferreira, A. Joubert, A. Stander","doi":"10.4102/SATNT.V33I1.1180","DOIUrl":"https://doi.org/10.4102/SATNT.V33I1.1180","url":null,"abstract":"Armed service recruits are faced with many stressors, including a strenuous training regimen that may have an impact on their physiological functioning. The Cardio Stress Index (CSI) is a noninvasive marker of the stress that the heart is experiencing. The aim of the study was to test the physiological impact of 20 weeks of intense training of armed service recruits, using CSI as a noninvasive biomarker of cardiac stress. Armed service recruits are faced with many stressors, including a strenuous training regimen that may have an impact on their physiological functioning. The CSI is a noninvasive marker of the stress that the heart is experiencing. The calculation of the CSI is based on the duration of vascular excitation (QRS duration), heart rate, heart rhythm and standard deviation of the duration of time between each successive cardiac cycle (RR-interval). The aim of the present study was to test the physiological impact of 20 weeks of strenuous training of armed service recruits, using CSI as a noninvasive biomarker of cardiac stress. Experiments were conducted at three points in time (weeks 1, 12, 20) during the basic military training of armed service recruits ( n = 202, males = 115, females = 87), aged between 18 and 24 years. Variables measured include: Resting CSI, heart rate and blood pressure. Data analysis was performed, using paired t -tests for pairwise comparisons of week 1 (baseline) with week 12; week 12 with week 20; and week 1 with week 20. The average CSI and heart rate remained within normal values for male participants on all three testing occasions. However, baseline readings for females were significantly higher during week 1. There was an overall decrease in the CSI in the 20 week time frame. From this study it seems as if the CSI measurement is a noninvasive method to establish the effects of training on the health of the heart.","PeriodicalId":30428,"journal":{"name":"South African Journal of Science and Technology","volume":"33 1","pages":"6"},"PeriodicalIF":0.0,"publicationDate":"2014-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70516608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0