施污泥土壤中粪大肠菌群的动态变化及其环境卫生风险

粪大肠菌群(FC)是判定污泥土地安全利用的重要指标之一。室内培养实验结果表明,污泥中的FC进入土壤后其数量随培养时间的延长逐渐降低,培养56 d后的数量与对照处理开始培养时的数量接近。由于FC的再发,增加了风干污泥土壤利用的病原生物学风险。培养7 d时,苏州风干污泥处理土壤中FC含量是苏州新鲜污泥处理的50多倍。污泥种类和培养时间是影响施污泥土壤中FC含量变化的主要因素。污泥种类影响FC的数量和再发能力,而FC与土著微生物竞争营养基质等是导致其数量在土壤中逐渐降低的主要原因。     

Public service mental health practice and psychology: Historically at the cutting edge.

Public service psychologists have led in the systematic use of new approaches to assessment, diagnosis, therapeutic interventions, and organizational management of mental and physical disorders. Outstanding examples include the MMPI and its successor developed at the University of Minnesota; elaboration of its 2-point code types and additional clinical scales at VA Medical Centers; David Wechsler’s work on intelligence and memory measurement at Bellevue Hospital, New York; early adoption of group therapy, early development of family therapy, token economies, and adult mental hygiene clinics; and finally the impetus for the development of accreditation in professional psychology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

建设项目劳动安全卫生预评价中存在的问题与对策探讨

建设项目劳动安全卫生预评价制度是一件很有意义的事情，它对今后建设项目的劳动安全卫生设计工作起到积极促进作用。该文就工作中存在的问题和解决对策进行了分析和探讨。     

Quarter and cow risk factors associated with the occurrence of clinical mastitis in dairy cows in the United Kingdom

Quarter and cow risk factors associated with the development of clinical mastitis (CM) during lactation were investigated during a 12-mo longitudinal study on 8 commercial Holstein-Friesian dairy farms in the southwest of England. The individual risk factors studied on 1,677 cows included assessments of udder and leg hygiene, teat-end callosity, and hyperkeratosis; body condition score; and measurements of monthly milk quality and yield. Several outcome variables for CM were used for statistical analysis, which included use of generalized linear mixed models. Significant covariates associated with an increased risk of CM were increasing parity, decreasing month of lactation, cows with very dirty udders, and quarters with only very severe hyperkeratosis of the teat-end. Thin and moderate smooth teat-end callosity scores were not associated with an increased risk for CM. Cows that recorded a somatic cell count >199,000 cells/mL and a milk protein percentage <3.2 at the first milk recording after calving were significantly more likely to develop CM after the first 30 d of lactation. There was no association between cow body condition score and incidence of CM. Of the cases of CM available for culture, 171 (26.7%) were confirmed as being caused by Escherichia coli and 121 (18.9%) confirmed as being caused by Streptococcus uberis. Quarters with moderate and very severe hyperkeratosis of the teat-end were at significantly increased risk of clinical E. coli mastitis before the next visit. Quarters with very severe hyperkeratosis of the teat-end were significantly more likely to develop clinical Strep. uberis mastitis before the next visit. There were strong trends within the data to suggest an association between very dirty udders (an increased risk of clinical E. coli mastitis) and teat-ends with no callosity ring present (an increased risk of clinical Strep. uberis mastitis). These results highlight the importance of individual quarter- and cow-level risk factors in determining the risk of CM associated with environmental pathogens during lactation.     

高职烹饪营养卫生课程教学初探

烹饪营养卫生课程是一门实践性很强的课程,针对目前教学中存在的教学方法和手段单一,学生兴趣不高,教学效果差等问题,文章在加强实践性、应用性的基础上,对烹饪营养卫生课程教学谈了几点看法。     

辐照在醉蟹保质中的应用

烹饪菜点中有一款特色菜———醉蟹 ,其季节性非常强 ,保质期较短 ,采用60 Coγ射线 4～ 8KGy辐照醉蟹 ,并结合低温处理 ( 0～ 5℃ )贮藏 ,可将保持期由原来的 3个月延长至 9个月。     

鞋材料革的卫生研究

我们在鞋内卫生方面完成了系统研究，并注明了条件。本文中，我们报导了湿气的累积和微生物的生长取决于鞋的不同材料。我们得出结论，鞋的用料和结构对累积湿气和它对微生物环境的影响方面是最重要的卫生因素。     

鸽肝营养素和有害元素含量测定

测定鸽肝营养素有害元素的含量,结果表明：鸽肝中营养素种类比较齐全,但与其它常用畜禽类肝脏的营养素含量相比,有一定的差别;鸽肝中铅、砷、镉、汞等有害元素的含量不高。因此,鸽肝安全可食,特别适合于老年人等特殊人群营养素的补充,应注意鸽肝的开发利用。     

烹饪食品中多环芳烃的污染及控制

多环芳烃是食物在煎炸、烤制和烟熏等烹饪过程中产生的一组有害化合物,具有强烈的致癌性和诱变性,长期摄入这些食物对人类健康造成潜在的威胁。对烹饪过程中多环芳烃的产生途径进行详细的阐述对采取科学合理的预防措施具有重要意义。