Starvation has important effects on early development of fish. It determines the survival and growth of fish larvae,and plays an important role in the dynamics of fish population and fisheries recruitment. In this rev...Starvation has important effects on early development of fish. It determines the survival and growth of fish larvae,and plays an important role in the dynamics of fish population and fisheries recruitment. In this review,we discuss the current studies about the effects of starvation on growth and development of fish larval stage. The goals of this review are to understand some adaptive mechanisms and ecological countermeasures of starved fish larvae and to provide the scientific guideline for exploring early life history processes,evaluating the nutrition condition and growth of larval fish,protecting fish resource and breeding fish larvae.展开更多
The intent of this paper is to conceptualize physical literacy in the school environment within the United States educational system. Evolution of physical literacy from both a general education and disciplinary focus...The intent of this paper is to conceptualize physical literacy in the school environment within the United States educational system. Evolution of physical literacy from both a general education and disciplinary focus is overviewed. The challenges of transitioning from a physically educated to a physically literate person as the primary learning outcome of physical education may inhibit progress. Five prioritized recom- mendations are made to assist teachers in overcoming such barriers: (a) whole of school approach, (b) effective, differentiated pedagogy, (c) integration of technology for individualized tracking of progress, (d) supportive school climate, and (e) alignment of local efforts with national initiatives.展开更多
Understanding the embryo physiology of Hizikia fusiformis(Harvey) Okamura will promote the development of artificial seedlings. In this study, H. fusiformis embryos were cultured under different environmental condit...Understanding the embryo physiology of Hizikia fusiformis(Harvey) Okamura will promote the development of artificial seedlings. In this study, H. fusiformis embryos were cultured under different environmental conditions, including different temperatures(15℃, 20℃, and 25℃), sunlight intensities(100%, 50%, and 25% of full solar radiation) and types of UVR(UV-A and UV-B). Then, we determined the lengths, maximal quantum yields( Fv/Fm), and survival rates of the embryos. The results showed that the embryos had the highest lengths, Fv/Fm values and survival percentages when cultured under a temperature of 20℃ and 25% sunlight intensity. The full level of solar radiation severely reduced the growth and survival ratios of the embryos. Hizikia embryos recovered within 2 h from the damage caused by short-term(30 min) high radiation(about 70% of full solar radiation) and UVR exposure. However, the viabilities of the embryos were significantly decreased after 4 h exposure to UVR. According to these results, we propose that culture conditions with indoor natural light and room temperature would be favorable for the growth, development and physiology of H izikia embryos.展开更多
The article displays the possibilities for introducing multimedia production based on computer science to gymnasiums (general secondary school programs), where students who usually continue their education at colleg...The article displays the possibilities for introducing multimedia production based on computer science to gymnasiums (general secondary school programs), where students who usually continue their education at college are educated. The purpose of the research was to prepare an assessment of the situation and recommendations to gymnasiums on how to improve the situation in this field and what options and opportunities appear for schools and the media environment in which they are active. Special attention was paid to the situation of activities (extracurricular activities and optional subjects) related to multimedia production and uses of ICT (information-communication technology).展开更多
Based on the background of "big-data-blowout", this thesis is about research on college English network teaching resources integration and utilization confronted with the chance of "data value, the data assets and ...Based on the background of "big-data-blowout", this thesis is about research on college English network teaching resources integration and utilization confronted with the chance of "data value, the data assets and data say", analyzing the inevitable challenge of "competition, digital divide and data privacy", discussing that the researchers should hold big data thinking of "peaks of road & dances with wolves & be interdependent", emphasizing the improvement from college English teacher's modem education technical information literacy[1] and putting forward to resource integration and utilization strategy in the era of big data.展开更多
To investigate the cytogenetic parameters and characterise the chromosomal banding pattern of Tho-Tho cattle, a breed of indigenous cattle found in the Northeastern states of India were reared for meat purpose. Lympho...To investigate the cytogenetic parameters and characterise the chromosomal banding pattern of Tho-Tho cattle, a breed of indigenous cattle found in the Northeastern states of India were reared for meat purpose. Lymphocyte culture technique was carried out in 28 Tho-Tho cattle and culture was harvested for good metaphase spread. Good metaphase spreads were selected for analysis, such as relative length, centromeric index and arm ratio. Centromeric banding (C-banding) and reverse banding (R-banding) methods were done for detail and better understanding of the chromosome morphology. The chromosome number in Tho-Tho cattle was observed to be 2n = 60 in all complete metaphase. The mean relative length of the autosomal chromosomes varied from 5.48% :~ 0.107% to 1.79% + 0.105% in male and 5.31% :E 0.148% to 1.86% + 0.055% in female, respectively. The chromosome banding showed C-positive dark band heterochromatin in all the acrocentric autosome. However, in sex chromosome, the Y-chromosome showed negative C-band and also the X-chromosome did not show any stain at the centromeric region. The numbers of R-band pattern were observed to be 490 and 499 band in male and female, respectively. One of the X-chromosome showed light banding pattern, confirming the inactivation during the embryonic development in female. The fundamental chromosome number and banding pattern of Tho-Tho cattle did not vary from the other breed of the Bos indicus. However, it is necessary to start a cytogenetic screening of the Tho-Tho cattle and expand upon more number to be kept at different villages of Nagaland in order to identify animals with chromosomal abnormalities, so that it can be excluded from future breeding strategies for conservation of Tho-Tho genetic resource.展开更多
Higher Vocational Education is showing unprecedented good momentum of development, for a large number of vocational technical talents will be the training object of society. As the number of students in higher vocatio...Higher Vocational Education is showing unprecedented good momentum of development, for a large number of vocational technical talents will be the training object of society. As the number of students in higher vocational colleges expands rapidly, their quality education and ability training have become more important. In conjunction with my teaching practice to engage in political work in colleges, from analyzing the problems of students ' ideological and political education, I elaborate approaches to strengthen students' ideological and political education.展开更多
文摘Starvation has important effects on early development of fish. It determines the survival and growth of fish larvae,and plays an important role in the dynamics of fish population and fisheries recruitment. In this review,we discuss the current studies about the effects of starvation on growth and development of fish larval stage. The goals of this review are to understand some adaptive mechanisms and ecological countermeasures of starved fish larvae and to provide the scientific guideline for exploring early life history processes,evaluating the nutrition condition and growth of larval fish,protecting fish resource and breeding fish larvae.
文摘The intent of this paper is to conceptualize physical literacy in the school environment within the United States educational system. Evolution of physical literacy from both a general education and disciplinary focus is overviewed. The challenges of transitioning from a physically educated to a physically literate person as the primary learning outcome of physical education may inhibit progress. Five prioritized recom- mendations are made to assist teachers in overcoming such barriers: (a) whole of school approach, (b) effective, differentiated pedagogy, (c) integration of technology for individualized tracking of progress, (d) supportive school climate, and (e) alignment of local efforts with national initiatives.
基金Supported by the Science and Technology Planning Project of Guangdong,China(No.2016A020222001)
文摘Understanding the embryo physiology of Hizikia fusiformis(Harvey) Okamura will promote the development of artificial seedlings. In this study, H. fusiformis embryos were cultured under different environmental conditions, including different temperatures(15℃, 20℃, and 25℃), sunlight intensities(100%, 50%, and 25% of full solar radiation) and types of UVR(UV-A and UV-B). Then, we determined the lengths, maximal quantum yields( Fv/Fm), and survival rates of the embryos. The results showed that the embryos had the highest lengths, Fv/Fm values and survival percentages when cultured under a temperature of 20℃ and 25% sunlight intensity. The full level of solar radiation severely reduced the growth and survival ratios of the embryos. Hizikia embryos recovered within 2 h from the damage caused by short-term(30 min) high radiation(about 70% of full solar radiation) and UVR exposure. However, the viabilities of the embryos were significantly decreased after 4 h exposure to UVR. According to these results, we propose that culture conditions with indoor natural light and room temperature would be favorable for the growth, development and physiology of H izikia embryos.
文摘The article displays the possibilities for introducing multimedia production based on computer science to gymnasiums (general secondary school programs), where students who usually continue their education at college are educated. The purpose of the research was to prepare an assessment of the situation and recommendations to gymnasiums on how to improve the situation in this field and what options and opportunities appear for schools and the media environment in which they are active. Special attention was paid to the situation of activities (extracurricular activities and optional subjects) related to multimedia production and uses of ICT (information-communication technology).
文摘Based on the background of "big-data-blowout", this thesis is about research on college English network teaching resources integration and utilization confronted with the chance of "data value, the data assets and data say", analyzing the inevitable challenge of "competition, digital divide and data privacy", discussing that the researchers should hold big data thinking of "peaks of road & dances with wolves & be interdependent", emphasizing the improvement from college English teacher's modem education technical information literacy[1] and putting forward to resource integration and utilization strategy in the era of big data.
文摘To investigate the cytogenetic parameters and characterise the chromosomal banding pattern of Tho-Tho cattle, a breed of indigenous cattle found in the Northeastern states of India were reared for meat purpose. Lymphocyte culture technique was carried out in 28 Tho-Tho cattle and culture was harvested for good metaphase spread. Good metaphase spreads were selected for analysis, such as relative length, centromeric index and arm ratio. Centromeric banding (C-banding) and reverse banding (R-banding) methods were done for detail and better understanding of the chromosome morphology. The chromosome number in Tho-Tho cattle was observed to be 2n = 60 in all complete metaphase. The mean relative length of the autosomal chromosomes varied from 5.48% :~ 0.107% to 1.79% + 0.105% in male and 5.31% :E 0.148% to 1.86% + 0.055% in female, respectively. The chromosome banding showed C-positive dark band heterochromatin in all the acrocentric autosome. However, in sex chromosome, the Y-chromosome showed negative C-band and also the X-chromosome did not show any stain at the centromeric region. The numbers of R-band pattern were observed to be 490 and 499 band in male and female, respectively. One of the X-chromosome showed light banding pattern, confirming the inactivation during the embryonic development in female. The fundamental chromosome number and banding pattern of Tho-Tho cattle did not vary from the other breed of the Bos indicus. However, it is necessary to start a cytogenetic screening of the Tho-Tho cattle and expand upon more number to be kept at different villages of Nagaland in order to identify animals with chromosomal abnormalities, so that it can be excluded from future breeding strategies for conservation of Tho-Tho genetic resource.
文摘Higher Vocational Education is showing unprecedented good momentum of development, for a large number of vocational technical talents will be the training object of society. As the number of students in higher vocational colleges expands rapidly, their quality education and ability training have become more important. In conjunction with my teaching practice to engage in political work in colleges, from analyzing the problems of students ' ideological and political education, I elaborate approaches to strengthen students' ideological and political education.