中药治疗急性扁桃体炎临床疗效的Meta分析

目的:系统评价中药治疗急性扁桃体炎的临床疗效。方法:计算机检索中国知网（CNKI）、中国生物医学文献服务系统（SinoMed）、万方数据（WANFANG DATA）、维普中文科技期刊数据库（VIP）、医药学文献资料库（Embase）、PubMed、Cochrane Library、Web of Science等数据库,检索时间为自建库至2023年6月10日,搜集有关中药治疗青少年及成人急性扁桃体炎的临床随机对照试验（RCT）,采用Cochrane偏倚风险工具评估所纳入的文献,采用Rev Man 5.3软件进行Meta分析。结果：共纳入文献11篇,患者880例。Meta分析结果显示,治疗组的总有效率［OR=3.37,95%CI(2.27,5.00),P＜0.00001］、咽痛评分［MD=-0.48,95%CI(-0.81,-0.15),P=0.004］、扁桃体肿大评分［MD=-0.45,95%CI(-0.75,-0.16),P=0.003］、热退时间［SMD=-1.01,95%CI(-1.72,-0.31),P=0.005］、咽痛改善时间［SMD=-1.59,95%CI(-2.24,-0.94),P＜0.00001］、扁桃体充血缓解时间［SMD=-1.10,95%CI(-1.55,-0.65),P＜0.00001］、并发症发生情况［OR=0.21,95%CI(0.10,0.44),P＜0.0001］均优于对照组。结论：中药治疗青少年及成人急性扁桃体炎疗效确切,并发症少。     

Changes in manganese and lead in the environment and young children associated with the introduction of MMT in gasoline

This is a 4-year longitudinal study to evaluate changes to the environment and exposure of young children associated with the introduction of methylcyclopentadienyl manganese tricarbonyl （MMT） into Australia in 2000. The cohort includes 57 females and 56 males; age range of 0.29 to 3.9 years. Samples are collected every 6 months from children in residences located at varying distances from major traffic thoroughfares in Sydney. Environmental samples： air, house and day care dustfall, soil, dust sweepings and gasoline. Samples from children： blood, urine, handwipes prior to and after playing outdoors, and a 6-day duplicate diet. All samples are analyzed for a suite of 20 elements using ICP-MS. Results are presented for the first three 6-month sampling periods for Pb and Mn. For dustfall accumulation, there was no significant change over the 3 sampling periods （time） for Pb or Mn, and a positive relationship between ‘traffic exposure＇ （traffic volume and proximity to the road） and Pb but not Mn. For handwipes, Pb and Mn in wipes taken from children after playing outdoors were usually significantly greater than for wipes taken prior to playing. There was no significant association between Pb or Mn in handwipes with traffic exposure. Dustfall accumulation was a significant predictor for Pb in the handwipes, and dust sweepings were a significant predictor of Mn in handwipes.     

您好，美丽的大自然——2005年全国青少年地学夏令营上海营雁荡山考察

由上海市地质学会和上海市七宝中学联合主办的2005年全国青少年地学夏令营上海营于7月26日至7月30日在浙江省雁荡山和绍兴市两地举行。来自上海的36名青少年参加了为期5天的营期活动。同学们被雁荡山的奇特造型：嶂、峰、洞、瀑所深深吸引；     

创设活动情景 激活学生思维

利用青少年好奇、求新、好动、擅模仿、可塑性强的特点，通过丰富多彩，生动活泼的教学形式，创设活动情景，寓教于乐，设计一些游戏比赛项目。能激发学生情趣，激活学生思维。     

贯穿趣味性凸显知识性：2006年湖北省青少年气象夏令营活动主题鲜明

7月20-29日，来自湖北大学附中、洪山区南望山小学等中小学的40多名学生，参加了由省气象局和省气象学会共同组织的2006年湖北省青少年气象夏令营活动。     

Growth and feed efficiency of juvenile shrimp Litopenaeus vannamei fed formulated diets containing different levels of poultry by-product meal

This feeding trial was conducted to evaluate the potential of poultry by-product meal (PBM) as a protein source in the culture ofLitopenaeus vannamei. Seven isonitrogenous and isoenergetic diets were formulated to near to commercial diet with about 40% protein and 7.5% lipid. Fish meal was replaced by 0, 30%, 40%, 50%, 60%, 70% and 100% of PBM (diets 1-7). The diet with 100% fish meal was used as a control (diet 1). Post-larvae were reared in an indoor semi-closed re-circulating system. Each dietary treatment was tested in 4 replicate tanks (260 L) of 40 shrimp, arranged in a completely randomized design. The shrimps were hand-fed for three times a day to near-satiation (0700, 1200 and 1800) for 60d. Percentage weight gain, survival, feed conversion ratio (FCR), protein efficiency ratio (PER) and body composition of shrimps were measured. There were no significant differences (P>0.05) in growth performance among shrimps fed diets 1-5 (0-60% fish meal replacement). However, shrimps fed diet 7 (100% fish meal replacement) had significantly lower (P<0.05) growth than those fed diets 1-5 (0-60% fish meal replacement). Shrimp fed diets 2-4 (30%-50% fish meal replacement) showed significantly higher growth than those fed diets 6 and 7 (70% and 100% fish meal replacement, respectively). Survival ranged from 94.7% to 100.0% and did not differ significantly (P>0.05) among different experimental diets. No differences in body composition were found among shrimps fed different diets. These results showed that up to 70% of fish meal protein can be replaced by PBM without adversely affecting the growth, survival, FCR, PER and body composition of Litopenaeus vannamei.     

Effect of Dietary Phosphorus on the Growth and Body Components of Juvenile Synechogobius hasta

The effect of dietary phosphorus on the growth and body components of juvenile Synechogobius hasta was determined. Different percentages of dietary phosphorus (0.63, 0.77, 0.93, 1.06, 1.22 and 1.36) were tested by feeding the fish (body weight, 15.81 g ± 0.32 g; 20 individuals each group; 3 groups each percentage) at a surplus of 5%–10% above satiation for 35 d. Dietary phosphorus did not significantly affect the specific growth rate, feed intake, feed conversion ratio and protein efficiency rate. Nitrogen ...     

2009国际天文年全国青少年征文评选活动获奖名单

一等奖（一名）《月光下的追忆》     

天文·科普·创新——记两届天文科普教育论坛

由北京青少年科技活动中心、北京天文学会、北京天文馆等单位联合主办的“天文科普教育论坛”（以下简称论坛）于2009和2010年连续两年成功举办。论坛宗旨以天文创新为己任,搞好创新教育。     

基于中医治未病思想探讨儿童、青少年肥胖症的防治思路

“治未病”理论是中医预防学的高度概况,在疾病的预防、诊治方面具有重要意义。本文将“治未病”思想贯穿于儿童、青少年肥胖的防治中,从未病先防、欲病救萌、既病防变、瘥后防复等方面提出相应的防治措施,强调要家庭、学校和社会多方合力,落实“治未病”思想。