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F1000Research ◽  
2021 ◽  
Vol 10 ◽  
pp. 922
Azrita Azrita ◽  
Hafrijal Syandri ◽  
Netti Aryani

Background: The giant gourami sago strain (Osphronemus goramy Lacepède) has been approved in 2018 as a candidate for freshwater aquaculture in Indonesia. However, information on the species’ reproduction is minimal. This study analyzed the reproductive characteristics of the gourami sago strain broodfish to provide basic knowledge for a future hatchery development strategy. Methods: A total of 10 female and 10 male mature gourami sago strain broodfish were measured for body weight and length, and were evaluated for their reproductive characteristics.  Breeding fish were spawned naturally in a 2×1×0.6 m concrete pond with a male-female sex ratio of 1:1. Egg weight and diameter were measured in 25 eggs per female using, respectively, ACIS AD- 600i scales with 0.01 g accuracy, and a microscope (Labo model L-711) using Canon Digital Camera Software 3 . Semen was collected using plastic syringes in 3 mL aliquots, then placed in an insulated ice-cooled container, and analyzed within two hours of collection. Results: Average weights of female and male broodfish before spawning were 2180±159.78 g and 3060±134.99 g, respectively. The relative fecundity and egg diameter were 1029±36 eggs kg-1 and 2.42±0.05 mm, respectively. The hatching rate and embryo survival to an eyed-egg stage were respectively 76.40±2.27% and 94.76±0.42%.  Sperm characteristics showed that volume was 0.60±0.12 ml kg-1 and percentage of motile sperm was 70.04±2.27%. Female broodfish weight after spawning was strongly correlated with the weight before spawned (r2 = 0.999) and absolute fecundity was also strongly correlated with female broodfish weight before spawning (r2= 0.921). Sperm concentration was moderately correlated with sperm motility (r2 = 0.556) and duration of sperm motility (r2 = 0.502). Conclusions: The gourami sago strain broodfish has suitable reproductive characteristics for the development of hatcheries. Successful natural spawning should be followed by larval weaning and feeding technology to increase growth and survival.

Adeolu Ogunleye

The paper examines the significance of the selection, planning, and factors that affect the leading and singing of hymns in corporate Christian worship. While myriads of scholarly literature abound on hymnology, through bibliographies and an in-depth library search, the paper seeks to discuss the guidelines that engender the leading of congregation hymns and methods required for a dynamic leading of hymns. The research findings reveal that in some Nigerian churches where there are no trained music ministers, many untrained song leaders merely stand before the congregation to announce the hymns for the congregation to sing without performing a leadership role. Others merely stand to wave a hand. Leading congregational hymns requires training and vivaciousness in skill application. The three major areas of focus include planning, leading, and congregational response to hymn singing. The paper concludes that planning and selection of hymns are both spiritual and intellectual exercises that involve basic knowledge of the rudiments of music. The research will help the church musicians and academics in further research into church music and congregational hymn singing. Keywords: Song Leader, Hymn, Hymnody, Worship, Corporate Christian Worship

2021 ◽  
Jingwen Niu ◽  
Jun Zhao ◽  
Ying Tan ◽  
Yangyu Huang ◽  
Yan Xu ◽  

Abstract Background To explore the practicability of team-based learning (TBL) and problem-based learning (PBL) in the teaching of neuromuscular disease in the Department of Neurology.Methods During 2012 and 2015, eighty-eight interns from Peking Union Medical College were randomly assigned to the TBL and PBL groups. In the TBL group of 6~8 interns, the teaching process included case preparation, group discussion, oral presentation and teacher assessment. In the PBL group of 24~34 interns, the process included case preparation, oral presentation and teacher assessment. After the teaching process, students were evaluated for basic knowledge, clinical thinking ability, document search numbers and a course experience questionnaire (CEQ); teachers were evaluated based on the effect of class teaching.Results There was no significant difference in the scores of neuroanatomy, neurology, diagnostics, neuromuscular disease or case writing between the TBL and PBL groups before the internship. After the learning process, there was no significant difference in the scores of neuroanatomy, neurology and neuromuscular disease. However, the TBL group performed better than the PBL group in clinical localization diagnosis, literature retrieval ability and inquiry learning ability. Evaluation by teachers showed that there was no significant difference between the 2 groups in teaching objectives, preclass preparation, basic knowledge, integration of basic knowledge and clinical practice, and overall teaching effect; however, the TBL group was superior to the PBL group in class atmosphere, initiative thinking, teamwork and communication between teachers and students.Conclusions Both TBL and PBL could help medical students improve their knowledge of neurology and neuromuscular disease. TBL could better improve students' communication, cooperation, literature searching and inquiry learning abilities.

2021 ◽  
Vol 27 (3) ◽  
pp. 3905-3910
Galya Stankova ◽  
Nevena Tzacheva ◽  
Lidiya Hristova ◽  

Introduction: The EU strategy “Europe 2020” sets up the instruments and targets for better educational levels and training as social dialogue, awareness-levels raising, law enforcement in the field of EU and national legislation. There are efficient resource interactions with other policy areas such as public health and education. EU funds, such as the European Social Fund (ESF) and the European Program for Employment and Social Innovation (EaSI), will support the application of rules relating to health and safety at work. Purpose of this study is analysis and evaluation of the employees, knowledge about health and safety at the workplace and how effective were the conducted OHS training. Tasks: Defining the level of awareness of workers for possibilities of health damage at work. Measuring the level of OSH training support for the implementation of preventive approaches to health protection in the workflow. Studying the preliminary psychological attitude towards OHS training both for employers and employees. Method: Survey through a questionnaire held among workers and employees in several branches of the private sector. Results: The study provides summarized information on several subjects: workers’ knowledge about dangerous hazards in their own working environment; adherence of the safety at work rules; proper use of personal protective equipment and specific work protective equipment; types of training, outreach and education the employees have undergone; levels of basic knowledge of the law and regulations related to OHS; most common methods of OHS training and education and their interpretation for safety and health at work. Conclusions: Most workers are well aware of the health risks at their workplaces. All of them have passed at least one educational course related to OHS. More than 2/3 of the respondents have participated in several types of training. Workers have a basic knowledge of Bulgarian employment law, but it’s incomplete and can be extended to a better degree. The most common reason for participating in Health and Safety at work training is obligatory both by law or higher management of the company. There is a high need to supplement the OHS legislation.

Léo Nava Piorsky Dominici Cruz ◽  
Luis Fernando Carvalho-Costa ◽  
José Manuel Macário Rebêlo

Abstract Wolbachia pipientis (Hertig) is an endosymbiotic microorganism widespread among arthropods and other invertebrate hosts, and employed in strategies to reduce the incidence of arthropod-borne diseases. Here, we used a PCR-based approach for 16S RNA and wsp genes to investigate the prevalence, geographical distribution, and strains of Wolbachia in sand flies (Diptera: Psychodidae: Phlebotominae), the main vectors of the causative agents of leishmaniasis, from three biomes in Brazil: Amazon, Cerrado, and Caatinga. We found that: 1) Wolbachia DNA is present in most (66.7%) of the sampled sand fly species, including vectors of Leishmania spp. (Ross, Trypanosomatida: Trypanosomatidae), 2) the prevalence of Wolbachia DNA varies among species and populations, 3) some strains of Wolbachia may have wider geographical and host range in South America, and 4) two phylogenetic distinct wsp sequences might represent two novel strains for Wolbachia in South America sand flies. Those findings increase the basic knowledge about Wolbachia in South American sand flies and might foster further researches on its use to reduce the transmission of sand fly-borne parasites.

EcoSal Plus ◽  
2021 ◽  
Robert Schleif

Very few labs have had the good fortune to have been able to focus for more than 50 years on a relatively narrow research topic and to be in a field in which both basic knowledge and the research technology and methods have progressed as rapidly as they have in molecular biology. My research group, first at Brandeis University and then at Johns Hopkins University, has had this opportunity.

2021 ◽  
Vol 27 (1) ◽  
pp. 179-192
Valentyn Pomohaibo ◽  
Andrii Pomohaibo

Based on the analysis of the content of the book of famous British behavioral geneticists K. Asbury and R. Plomin «G means genes: the impact of genetics on education and achievement» shows the way to create a perfect school education, based on the latest numerous large-scale and long-term researches in different countries and prove that the role of genetic factors in human learning and life success is not absolute and that the impact of the environment is no less important than genes. This thesis is a base of the personalized child education idea. Based on an analysis of the research results, the authors of the book assert that school education should be personalized. It is the personalization of learning that will ensure to develop the thinking ability, acquire knowledge and skills at a pace and direction that is appropriate for each child. Personalized learning should be based on the following principles: a minimization of the core curriculum and test basic knowledge and skills; a maximizing of options to all pupils alongside the compulsory basic knowledge and skills; a stopping of labeling ability of children; an individual education of each pupil; a teaching of children to achieve success; a promotion of equal opportunities for children from an early age; an availability of out-of-school education for all children; a two-stage physical education program; wide choice of future life ways; a training of new teachers in genetics and a giving them the methods to put it into pedagogical practice; the scale of schools in directions and levels of education. Finally, the authors of the book offer their vision of a school that will be based on the laws of behavioral genetics. Possible publication of the book by K. Asbury and R. Plomin, «G is for genes: The impact of genetics on education and achievement» in Ukrainian will be an interesting and useful handbook for policymakers, educators and parents with its constructive recommendations on one of the most important educational challenges – how to prepare each and every child for a successful life in today's ever-changing world.

2021 ◽  
pp. 63-66
Rajeev Kumar ◽  
Ruchir Sharma ◽  
Sandeep Dar ◽  
Shipra Kumari

BACKGROUND: Coronavirus Disease 2019 also known as COVID-19 is an aggressively expanding pandemic caused by a novel human coronavirus (SARS-COV-2) previously known as 2019-nCov. The WHO (World Health Organization) declared the corona virus outbreak 2019- 2020 as a public health emergency of international concern (PHEIC) on 30 January 2020 and on 11 March 2020 WHO declared COVID-19 as a pandemic. This led to mass panic and anxiety. Without the proper knowledge of the disease, there are many misconceptions and stigmas about the pandemic even with the implementation of awareness programs. This study attempts to assess the knowledge and awareness level of people engaged in the health sector in India about the COVID-19 disease. AIM:To assess the awareness among the students, faculty and other health care workers about the basic knowledge of the COVID-19 disease. METHODOLOGY:Across sectional study was conducted among 558 Subjects in which faculty were 72, students were 298 and other health care workers were 191 of SHKM Govt. Medical College, Nalhar, Nuh. They will all be given questionnaires regarding the basic details of COVID-19, handling of COVID-19 dead bodies and autopsies of COVID-19 dead bodies. RESULT: In our study most participants acknowledge that they know about COVID-19 (98.92%) and it is a virus (99.46%). Also wearing a mask (98.39%), hand washing and social distancing (100.00)%,staying mostly indoors, not eating outside (78.67%), following all Government guidelines (65.80%), and eating good immunity (100.00%) food can prevent COVID-19. Most Participants have good knowledge regarding COVID-19 dead body autopsy also like whether to do autopsy in non-medicolegal cases (97.85%), risk from doing autopsy (100%). Very few participants know how to transport (0.54%) COVID-19 dead bodies though most know guidelines regarding COVID-19 dead bodies cremation (93.55%). CONCLUSION: There is a need for improvement in understanding of handling and autopsies of COVID-19 dead bodies. Regular awareness programs regarding basic knowledge of COVID-19 disease, handling and autopsies of COVID-19 dead bodies should be conducted.

2021 ◽  
Vol 25 (2) ◽  
pp. 78-94
Vladimir Sojka ◽  
Petr Lepsik

Purpose: In production, problems that are difficult to solve could occur. When a classic problem-solving toolset is not enough, a company must accept not fully satisfying solutions or secondary problems. This paper proposes a new method called Innovation by Increasing Ideality (3I), which helps to resolve difficult problems in production.     Methodology/Approach: Based on a previous literature review a new method was designed. The method leads the solver by a set of steps that lead to a well-described problem, with many ideas or ways, where the solver should search for a satisfying solution. The method is based on TRIZ principles, but it is user-friendly even for users who are not TRIZ specialists but have only basic knowledge of TRIZ principles and its tools. The method is demonstrated in a case study, where a problem with the transportation of parts is successfully solved. Findings: Newly proposed method, compared with the traditional way of resolving a problem, got a much better solution in a shorter time. Research Limitation/Implication: Only one example of use. There is a need for more applications in future. Originality/Value of paper: The paper describes a new method for overcoming difficult problems in production. The method uses TRIZ principles to innovate the process where the problem is. The presented method can serve as a new powerful tool for industrial engineers in practice.

Sabrina Gehringer ◽  
Helmut Flachberger

AbstractIn this study, several tests were performed to analyse the triboelectrostatic charging behaviour of an artificially mixed sulfidic copper ore consisting of quartz and chalcopyrite. To check the surface charge of the pure mineral samples, they were analysed in a self-developed triboelectrostatic charging unit. After that, the artificially mixed sulfidic copper ore was sorted by using a triboelectrostatic belt separator.The objective of the study is to generate basic knowledge about the triboelectrostatic charge behaviour and furthermore the sortability by using electrostatic separation. All separation tests were carried out under controlled ambient conditions.

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