广播对农节目加强普法宣传的尝试

时下,不少基层干部在日常工作中会抱怨一些诸如计划生育、统筹提留、护林保土等中心工作在农村开展起来难度很大的问题。这一方面说明农民群众接触、学习法律的机会较少,另一方面也暴露出我们在宜传、执行的过程中办法不多、形式简单,这就给我们加强对农广播中的普法力度提出了极为迫切的需求。 摒弃俗套 推陈出新 现在,不少地方台还在沿用过去那种灌输式的播出形式,将这种呆板、沉闷的做法用到本来就稍显抽象、枯燥的法律节目中,只会迫使     

Nutritional strategies to optimize training and racing in middle-distance athletes

Middle-distance athletes implement a dynamic continuum in training volume, duration, and intensity that utilizes all energy-producing pathways and muscle fibre types. At the centre of this periodized training regimen should be a periodized nutritional approach that takes into account acute and seasonal nutritional needs induced by specific training and competition loads. The majority of a middle-distance athlete's training and racing is dependant upon carbohydrate-derived energy provision. Thus, to support this training and racing intensity, a high carbohydrate intake should be targeted. The required energy expenditure throughout each training phase varies significantly, and thus the total energy intake should also vary accordingly to better maintain an ideal body composition. Optimizing acute recovery is highly dependant upon the immediate consumption of carbohydrate to maximize glycogen resynthesis rates. To optimize longer-term recovery, protein in conjunction with carbohydrate should be consumed. Supplementation of beta-alanine or sodium bicarbonate has been shown to augment intra- and extracellular buffering capacities, which may lead to a small performance increase. Future studies should aim to alter specific exercise (resistance vs. endurance) and/or nutrition stimuli and measure downstream effects at multiple levels that include gene and molecular signalling pathways, leading to muscle protein synthesis, that result in optimized phenotypic adaptation and performance.     

武广高铁泉口变电所跳闸原因分析

武广客运专线泉口变电所群力方向上下行发生多起跳闸事故,通过查找、分析原因,提出了相应的整改方案。     

在“对话”中生成“意义”——农村教师研培工作的“归真”之道

一位农村校长对笔者叙说这样的苦恼:上级部门好不容易给了学校一个“脱产置换”(指参培者的岗位由实习老师短暂顶岗,让其参加一段时间全脱产学习)名额,却没有教师愿意去,领导物色好人选后还得反复做工作.即便是常规的短暂的学习教研活动,许多老师也不乐意去.这位校长的苦恼绝非个案,笔者长期从事农村教师的研培工作,既享受着教师积极参与研培工作带来的快乐,也不时忍受着面对消极参与研培工作的教师带来的无奈.     

IE时代下的教务管理体系研究

随着我国经济的飞速发展,大众化教育阶段已经开始实施,无论是小学、初中、还是高校,招生规模每年都在扩大,在学生数量呈直线增长的同时,保证教学质量的稳定及其提高,确保达到育人的目标,是实现科教兴国路线的重要基础,也是每一位教育工作者需要思考的大事。加强教务管理是实现教学质量稳定及其提高的必要途径。教务管理工作是学校教学管理工作的核心驱动,只有做好教务管理,才能保证教学的正常秩序,有规律的实施教学计划,才能使教学质量得到稳定的发展。所以,为了跟上大众化教育的脚步,必须创建一套科学的、具有操作性的教务管理体系。     

The Colorado Learning Attitudes about Science Survey (CLASS) for use in Biology

This paper describes a newly adapted instrument for measuring novice-to-expert-like perceptions about biology: the Colorado Learning Attitudes about Science Survey for Biology (CLASS-Bio). Consisting of 31 Likert-scale statements, CLASS-Bio probes a range of perceptions that vary between experts and novices, including enjoyment of the discipline, propensity to make connections to the real world, recognition of conceptual connections underlying knowledge, and problem-solving strategies. CLASS-Bio has been tested for response validity with both undergraduate students and experts (biology PhDs), allowing student responses to be directly compared with a consensus expert response. Use of CLASS-Bio to date suggests that introductory biology courses have the same challenges as introductory physics and chemistry courses: namely, students shift toward more novice-like perceptions following instruction. However, students in upper-division biology courses do not show the same novice-like shifts. CLASS-Bio can also be paired with other assessments to: 1) examine how student perceptions impact learning and conceptual understanding of biology, and 2) assess and evaluate how pedagogical techniques help students develop both expertise in problem solving and an expert-like appreciation of the nature of biology.     

广东省科研信用管理体系建设现状、问题及对策建议

摘要：科研信用管理作为项目管理过程中不可或缺的部分,贯穿项目管理的全过程。广东省科研信用管理经过多年来的实践、调整,在制度建设、工作机制、平台建设、宣传、共享与应用等方面取了一些成效,但整体上仍存在短板和薄弱环节。文章从完善省级科研诚信信息管理办法、建立广东省科研诚信信息目录、明确科研信用管理各主体责任、推动科技伦理管理体制建设等方面提出建议和发展对策,为科研信用管理体系创新提供新思路。     

随机产出随机需求下的供应链协调问题研究

考虑随机产出随机需求下单供应商-单零售商的两级供应链系统,研究回购契约在双随机环境下协调供应链的作用,分别建立基于批发价格契约与回购契约的供应链分散决策模型,比较两种契约安排下的供应商定价、零售商订货决策以及供应链各方利润,揭示影响回购价格的关键因素,分析供应商产出波动、需求波动分别对供应商定价决策、零售商订货决策以及供应链各方利润的影响。研究表明,回购契约能有效协调随机产出随机需求下的供应链运作,且回购契约对供应链效率改善随着供应商产出波动的增加而提高。