期刊文献+
共找到5篇文章
< 1 >
每页显示 20 50 100
五步精作 互助学习——浅谈五步两环课堂教学法
1
作者 李丰强 《教育教学论坛》 2012年第15期77-78,共2页
"五步精作、互助学习"法秉承陶行知先生"生活即教育"、"教学做合一"、"小先生"等理念,以小组互助合作为学习形式,以问题导学为手段,以小组积分制竞赛为激励,以促进全体学生成长为核心,根据学... "五步精作、互助学习"法秉承陶行知先生"生活即教育"、"教学做合一"、"小先生"等理念,以小组互助合作为学习形式,以问题导学为手段,以小组积分制竞赛为激励,以促进全体学生成长为核心,根据学生课堂心理状态的五个时区,精心设计五大步骤、两小环节,充分考虑学生的"前概念"及"鱼牛"现象,积极调控,实时评价与引导,使学生在课堂上真正实现其主体性,促进各层次学生都获得成长的机会。 展开更多
关键词 五步精作 互助学习 学生课堂心理 “鱼牛”
下载PDF
Nutritional Analysis and Physiological Activity Evaluation of Pneumatophorus japonicus Sauce 被引量:1
2
作者 JIANG Jin-jin JIA Qiang +2 位作者 LIN Wan-ling LIANG Lan-lan LAI Zi-jian 《Agricultural Science & Technology》 CAS 2019年第1期49-54,共6页
The nutritional composition of Pneumatophorus japonicus sauce was analyzed and compared with other fish sauces. The sodium chloride content of the sample Pneumatophorus japonicus sauce was greater than 25%. The total ... The nutritional composition of Pneumatophorus japonicus sauce was analyzed and compared with other fish sauces. The sodium chloride content of the sample Pneumatophorus japonicus sauce was greater than 25%. The total soluble nitrogen content was greater than 2.1 g/100mL, and the amino nitrogen content was greater than 1.2 g/100mL. The mineral content was abundant in the Pneumatophorus japonicus sauce, the calcium content and the magnesium content were 391.50±0.03 and 375.00±0.02 mg/L respectively, much higher than those in other samples. The iron content and the zinc content were 22.30±0.04 and 2.80±0.03 mg/L, respectively. The content of free amino acids was 5 552.17 mg/100mL, the content of essential amino acids was 2 666.00 mg/100mL,The taurine content was 113.05 mg/100mL. The antioxidant activity of the fermentation broth was 90.48%, while the TCA soluble peptide content was 29.04 mg/mL. Pneumatophorus japonicus sauce is nutritionally rich and has special physiological activity. 展开更多
关键词 Pneumatophorus japonicus sauce Nutritional composition TAURINE Antioxidant activity
下载PDF
Biology and Breeding of Snail Eater Pangasius (Pangasius conchophilus) in Thailand: An Overview
3
作者 S. Kunlapapuk S. Kulabtong 《Journal of Agricultural Science and Technology(A)》 2011年第8期1210-1213,共4页
Snail eater pangasius (Pangasius conchophilus) is a freshwater fish species indigenous to Mekong-Chaophraya Basin, and is an economic fish in Thailand. This paper reviews some Thai research papers for referable bene... Snail eater pangasius (Pangasius conchophilus) is a freshwater fish species indigenous to Mekong-Chaophraya Basin, and is an economic fish in Thailand. This paper reviews some Thai research papers for referable benefit of international countries. The relationships of fecundity with body length and weight of wild population are related (F = 0.54L3339, F = 435.41W^S399). Length-weight relationships of both sexes are W = 0.0059L3044s. Sex ratio is 1:1 and spawning season starts during March to June, the egg is adhesive demersal. Average mature size of both sexes are from 40-60 cm TL and 1,100-2,900 g. Effect of 3 types of hormone on induced ovulation, including HCG, pituitary gland, and buserelin in combination with domperidone are not signiticantly different (P 〉 0.05). Hatching occurs in 24-25 hours after fertilization. The hatching percentage is 80%. Nursing and feeding strategies are also reviewed in this paper. 展开更多
关键词 BREEDING reproductive biology snail eater pangasius Pangasius conchophilus
下载PDF
Use of Silage Acid Devil Fish (pterygoplichthys spp.) as Protein Supplement in Finishing Beef Cattle
4
作者 S. Ornelas E. Gutierrez +5 位作者 A. Juarez R. Garciduefias J. L. Espinoza M. Perea J. P. Flores G. Salas 《Journal of Agricultural Science and Technology(A)》 2011年第8期1280-1283,共4页
Animal nutrition is one of the most important limiting factors in animal production, especially in ruminants, providing proteins being the main constraint, due to the limited availability and high cost of protein sour... Animal nutrition is one of the most important limiting factors in animal production, especially in ruminants, providing proteins being the main constraint, due to the limited availability and high cost of protein sources (oilseed meals). Currently in the dam "El lnfiernillo" in Michoacan Mexico, has a large population of devil fish (Pterygoplichthys spp.), which is an economic and ecological problem, because it is not consumed by humans and causes pollution to be discarded directly into the environment. For that reason the objective of this study was to evaluate the use of silage acid devil fish (SADF) in fattening beef cattle as a protein supplement. SADF is defined as a product semi-liquid or pasty mixed with formic acid, which leads to a decrease in pH to near 4.0. Used 18 young bulls (Bos taurus × Bos indicus) for 60 days with a starting weight of 278.9 ± 51.2 kg, housed in individual pens with food and water ad libitum were randomly assigned to three treatments with different levels of inclusion SADF (0%, 12% and 18%). They were weighed to the beginning of the experiment and later every 30 days, previous fasting of 24 hours. To determine the food consumption, weigh every day the offered food and the surplus. There were no significant differences (P 〈 0.05) among treatments with different levels of inclusion of SADF with respect to daily weight gain, with values of 952 ± 324, 927 ±322 and 854 ± 307 g/day, respectively. The dry matter intake (DMI) was 8.9, 9.3 and 7.7 kg/day to 0%, 12% and 18% of SADF, respectively. In the same values for feed conversion were 9.34, 10.03 and 9.01 kg DMI/kg of weigh live, and carcass yield of 60.6%, 60.3% and 58.5%, respectively. It is concluded that fish silage acid devil is an excellent alternative in feeding beef cattle as a protein supplement. 展开更多
关键词 Fish silage acid devil fish finishing beef cattle.
下载PDF
关于“鱼牛观察”与演示型CAI的联想 被引量:1
5
作者 沈江天 李哉平 《上海教育科研》 CSSCI 北大核心 2004年第4期66-67,共2页
一、鱼牛现象:基于自身经验的个性化构想 1.什么是"鱼牛现象"? 有一则欧洲童话:一口不深的井中,住着一条鱼和一只青蛙.那只欧洲的青蛙不是我国成语"井底之蛙"中的青蛙.它除了坐井观天,还经常跳到井外,去看看外面的... 一、鱼牛现象:基于自身经验的个性化构想 1.什么是"鱼牛现象"? 有一则欧洲童话:一口不深的井中,住着一条鱼和一只青蛙.那只欧洲的青蛙不是我国成语"井底之蛙"中的青蛙.它除了坐井观天,还经常跳到井外,去看看外面的精彩世界.鱼对此十分羡慕,请求青蛙讲一讲井外的新鲜事物.青蛙讲到牛,说,"牛真是一种奇怪的动物,头上长着两只角,肚子的下面长着四条腿……"鱼边听边按照自己的经验和理解想象着牛的样子--鱼一样的头、鱼一样的身子和鱼一样的尾巴,头上却长了两只角,肚子的下面长了四条腿……--这就是所谓的"鱼牛".相应的现象就是建构主义借以阐述核心思想的"鱼牛现象". 展开更多
关键词 建构主义 “鱼牛现象” CAI 计算机辅助教学 课件演示 想象能力
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部