Privacy-seeking behavior in an elementary classroom

This study observed privacy-seeking behavior in an elementary classroom, investigated individual differences in privacy seeking, and compared preferences for private spaces varying in degree of enclosure. Four privacy booths were placed in a fourth-grade classroom. A ticket system was used to assess booth use. Information on personality and background variables was obtained with self-report, peer, teacher, and parent questionnaires. After an initial period of enthusiasm, overall booth use declined sharply. However, analysis revealed substantial individual variation in booth use that remained consistent throughout the study. For boys, booth use was significantly correlated with teachers' ratings of sociability, aggressiveness, and distractibility. For girls, a significant positive relationship was found between privacy seeking at home and in school. Self-reported desire for privacy was uncorrelated with actual privacy-seeking behavior in the classroom. No significant differences in the use of the various booths were found, although self-reported preferences clearly favored the booth that allowed visual access to the rest of the classroom when desired.     

Fate of sprayed formulated aminocarb in freshwater

Following simulated aerial spraying of Matacil^® in field and tank experiments, the concentration of aminocarb increased in the subsurface water for some hours: 22 h in the case of the field and 72 h for the tank. Thereafter, the concentration of Matacil^® declined exponentially in subsurface waters. The equation for this, A = 4.834 + 0.165 g ? 0.155T, can be used to predict the concentration of aminocarb in the lentic environment (A, μgL^?1), providing the application rate (g ha^?1) and time after application (T in h) are known.     

基于J2EE技术的泉州环保门户网站的设计与实现

介绍了基于J2EE平台的泉州环保网站的建设.采用网站内容管理系统,提高了网站的工作效率,实现信息采集分散化、自动化,内容管理流程化.加强了网站的互动性和对外服务功能,大大提升泉州环保网站的管理水平.     

浅析“环境影响评价技术导则声环境”(HJ2.4-2009)实施后环评中应重视的问题

从总则及编写要求、评价等级、声环境现状调查及评价、声环境影响预测几个方面分析了《环境影响评价技术导则声环境》95版和09版的区别,在此基础上,以江苏省内公路噪声环境影响评价为例,浅析了导则09版实施后在环评工作中应重视的一些问题,供学习与探讨。     

Fe^2＋—H2O2氧化法处理氨基J酸工业废水的研究

用Ｆｅ＾２＋－Ｈ２Ｏ２氧化法处理氨基Ｊ酸工业废水。结果表明,当溶液ｐＨ＝１－３,Ｈ２Ｏ２和Ｆｅ＾２＋用量分别为Ｈ２Ｏ２：Ｆｅ＾２＋１０：１,Ｈ２Ｏ２：ＣＯＤＣｒ＝２ｇ：ｇ时,Ｊ酸废水的ＣＯＤＣｒ去除率达６６．７％,氨基去除率达６８．４％。处理后的废水ＢＯＤ５／ＣＯＤＣｒ＝０．５,已达到生化处理的要求。该法可作为氨基Ｊ酸废水的预处理方法。     

Isolation and characterization of a heavy metal-resistant Burkholderia sp. from heavy metal-contaminated paddy field soil and its potential in promoting plant growth and heavy metal accumulation in metal-polluted soil

A heavy metal-resistant bacterial strain was isolated from heavy metal-contaminated soils and identified as Burkholderia sp. J62 based on the 16S rDNA gene sequence analysis. The heavy metal- and antibiotic resistance, heavy metal solubilization of the isolate were investigated. The isolate was also evaluated for promoting plant growth and Pb and Cd uptakes of the plants from heavy metal-contaminated soils in pot experiments. The isolate was found to exhibit different multiple heavy metal and antibiotic resistance characteristics. Atomic absorption spectrometer analysis showed increased bacterial solubilization of lead and cadmium in solution culture and in soils. The isolate produced indole acetic acid, siderophore and 1-aminocyclopropane-1-carboxylate deaminase. The isolate also solubilized inorganic phosphate. Inoculation with the isolate was found to significantly (p < 0.05) increase the biomass of maize and tomato plants. Increase in tissue Pb and Cd contents varied from 38% to 192% and from 5% to 191% in inoculated plants growing in heavy metal-contaminated soils compared to the uninoculated control, respectively. These results show that heavy metal-solubilizing and plant growth promoting bacteria are important for plant growth and heavy metal uptake which may provide a new microbial enhanced-phytoremediation of metal-polluted soils.     

城市河涌水对C57BL/6J小鼠生殖和发育的影响

前期研究发现广州市周边小型企业集中点和生活区下游河涌水样中存在较高浓度的AhR激活物污染.为考察河涌水中是否存在对生殖和发育产生影响的TCDD类似物,本研究以检出河涌水样激活物平均值标准品TCDD做阳性对照,C57BL/6J雌性小鼠为模型进行了三代生殖毒性实验,了解长期暴露对动物生殖和发育产生的毒性影响.成年雌性小鼠4...     

J酸清洁生产新工艺的研究

借助高压液相色谱研究了J酸清洁生产新工艺,优化了J酸制备的反应条件,按照新工艺,产品的干品含量(偶合值)高于95%,而杂质异构体γ酸含量低于0.5%,J酸对吐氏酸的总收率达76%,减少了废水的排放.     

Urban afforestation and infant health: Evidence from MillionTreesNYC

This paper examines the impact of urban afforestation on infant health outcomes by exploiting a quasi-experimental setting where one million new trees were planted in New York City (NYC), but not in counties surrounding NYC over the same time period. Using a near-universal birth record of NYC and surrounding counties over 2004–2015 and employing both the synthetic control method and a difference-in-differences model, we find that an approximately 20% increase in urban forest cover decreased prematurity and low birth weight among mothers in NYC by 2.1 and 0.24 percentage points, respectively, relative to similar mothers outside of NYC. The low birth weight finding is equivalent to getting a mother smoking two cigarettes a day during pregnancy to quit. An internal validity test suggests that changes in the composition of NYC mothers cannot explain the observed effects. Additionally, we find evidence that declines in PM_2.5 concentrations and increases in outdoor walks are potential causal mechanisms. Results suggest that urban afforestation may be able to complement existing policies aimed at improving infant health.     

Development on whose terms?: CSR discourse and social realities in Papua New Guinea's extractive industries sector

The emergence of Corporate Social Responsibility (CSR) in the extractive industries represents a bid to legitimize the sector after decades of environmental disasters and the trampling of indigenous rights. But whilst the rise in CSR has meant safer technologies and better stakeholder engagement, there is little evidence of any real socio-economic development at the grassroots. This paper examines the uneasy relationship existing between the strategic ‘business model’ of CSR and the brand of development it delivers. Using evidence from two multinational extractive industries in Papua New Guinea, we show how weaknesses in CSR practice come from greater emphasis on meeting global ‘performance standards’ than on the specificities of the social contexts in which strategies are implemented. These weaknesses, we argue, lead to ill-conceived and inappropriate development programmes that generate inequality, fragmentation, and social and economic insecurity. We conclude that greater engagement with affected communities will facilitate the development of more mutually beneficial and appropriate CSR strategies.