Initial training to the technical volleyball skills of tall girls, commenced their training at the age of 13-14 years

Author(s):  
Seleznevа
Keyword(s):  
Foods ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 763
Author(s):  
Ran Yang ◽  
Zhenbo Wang ◽  
Jiajia Chen

Mechanistic-modeling has been a useful tool to help food scientists in understanding complicated microwave-food interactions, but it cannot be directly used by the food developers for food design due to its resource-intensive characteristic. This study developed and validated an integrated approach that coupled mechanistic-modeling and machine-learning to achieve efficient food product design (thickness optimization) with better heating uniformity. The mechanistic-modeling that incorporated electromagnetics and heat transfer was previously developed and validated extensively and was used directly in this study. A Bayesian optimization machine-learning algorithm was developed and integrated with the mechanistic-modeling. The integrated approach was validated by comparing the optimization performance with a parametric sweep approach, which is solely based on mechanistic-modeling. The results showed that the integrated approach had the capability and robustness to optimize the thickness of different-shape products using different initial training datasets with higher efficiency (45.9% to 62.1% improvement) than the parametric sweep approach. Three rectangular-shape trays with one optimized thickness (1.56 cm) and two non-optimized thicknesses (1.20 and 2.00 cm) were 3-D printed and used in microwave heating experiments, which confirmed the feasibility of the integrated approach in thickness optimization. The integrated approach can be further developed and extended as a platform to efficiently design complicated microwavable foods with multiple-parameter optimization.


2020 ◽  
Vol 44 (1) ◽  
pp. 72-79
Author(s):  
Nathalie Marcerou-Ramel

AbstractFrance is probably the only European country to have today a national school for training of library and information professionals: Enssib, National Library and Information Science School. An atypical situation, as some countries decided to close their schools of librarianship and entrust the training of their professionals to universities only. How does Enssib train its library executives? The article first describes the recruitment, training and exercise framework for French library and information professionals. Then it focuses on the vast renovation project that Enssib has been launching for four years in order to adapt its training processes to the needs and expectations of the professional communities.


2021 ◽  
Vol 13 (10) ◽  
pp. 5459
Author(s):  
Diana Soares ◽  
Betina Lopes ◽  
Isabel Abrantes ◽  
Mike Watts

This study presents a systematic literature review (SLR) on the initial training of science teachers in Africa based on selected research articles, in the period 2000–2020, that emphasize the importance of surveying knowledge that goes beyond those that historically have a longer path in the building of scientific knowledge, such as that of European or North American countries. The analysis included a total of 31 articles from the Web of Science (WoS) and Scopus databases. The findings indicate a lack of knowledge, or at least visibility, considering the initial training of African teachers, particularly in developing countries. South Africa leads the number of publications. Within the five African countries implied in the SLR the following outputs were identified: (i) a division between teacher education research that is ‘place-based’ and one that uses (only) ‘universal theories’ (such as Vygotsky and Bandura); (ii) a tension between the application of student-centered learning and teaching models and more traditional classroom practices. Finally, the majority of articles highlight the importance of investing in further research around teacher education. Based on these outputs the importance of international cooperation in teacher education research articulating theory and practice to ensure a global and local perspective towards sustainable development is reinforced.


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