Adsorption of ruthenium ions on activated charcoal： influence of temperature on the kinetics of the adsorption process

INTRODUCTION Time dependence study of metal ions adsorptionon solids provides valuable information on the ad-sorption process and its mechanism. Rate of metalions adsorption process is dependent on a number offactors such as agitation of the solution, the state ofmetal ions in solution, concentration of metal ions andtemperature (Benes and Majer, 1980). Temperature isthe parameter generally ignored in most adsorptionstudies (Bangash and Hanif, 1992; Afzal et al., 1993;Atun and Kil…     

Experimental study on the inhibition of biological reduction of Fe(III)EDTA in NO_x absorption solution

INTRODUCTION Nitrogen oxides (NOx) are significant airborne contaminants resulting from fossil fuels combustion. The use of metal chelate additives for combined re- moval of NOx and SO2 in FGD (flue-gas desulfuriza- tion) systems was investigated by several groups (Harriott et al., 1993; Tsai et al., 1989; Shi et al., 1996a; 1997). Fe(II)EDTA (EDTA, ethylenediami- netetraacetate) as an additive for removing nitric oxide (NO) from flue gas had been extensively stud- ied, with the …     

Experimental study on the inhibition of biological reduction of Fe(III)EDTA in NO x absorption solution

Scrubbing of NO _x from the gas phase with Fe(II)EDTA has been shown to be highly effective. A new biological method can be used to convert NO to N₂ and regenerate the chelating agent Fe(II)EDTA for continuous NO absorption. The core of this biological regeneration is how to effectively simultaneous reduce Fe(III)EDTA and Fe(II)EDTA-NO, two mainly products in the ferrous chelate absorption solution. The biological reduction rate of Fe(III)EDTA plays a main role for the NO _x removal efficiency. In this paper, a bacterial strain identified asKlebsiella Trevisan sp. was used to demonstrate an inhibition of Fe(III)EDTA reduction in the presence of Fe(II)EDTA-NO. The competitive inhibition experiments indicted that Fe(II)EDTA-NO inhibited not only the growth rate of the iron-reduction bacterial strain but also the Fe(III)EDTA reduction rate. Cell growth rate and Fe(III)EDTA reduction rate decreased with increasing Fe(II)EDTA-NO concentration in the solution. Project (No. 20176052) supported by the National Natural Science Foundation of China and the Scientific Research Foundation for Returned Overseas Chinese Scholars, Ministry of Education     

盐胁迫下不同的钙盐对小麦幼苗耐盐特性的研究

利用Ca(NO3)2和CaCl2可以提高生长在盐渍条件下小麦幼苗的耐盐能力，增加幼苗的干、鲜重。其原因是由于两种钙盐均能防止膜脂过氧化，降低脂膜透性，减少细胞内营养物质的外渗，阻止Na^ 进入细胞，实验结果证明，在降低小麦幼苗盐害方面，Ca(NO3)2好于CaCl2。讨论了两个钙盐在降低盐害机理方面的差异。     

Impact of COVID-19 pandemic on the pregnancy outcomes of women undergoing assisted reproductive techniques (ARTs): a systematic review and meta-analysis

The global outbreak of the coronavirus disease 2019 (COVID-19) led to the suspension of most treatments with assisted reproductive technique (ART). However, with the recent successful control of the pandemic in China, there is an urgent public need to resume full reproductive care. To determine whether the COVID-19 pandemic had any adverse effects on female fertility and the pregnancy outcomes of women undergoing ART, a systematic review and meta-analysis was conducted using the electronic Chinese and English databases. Dichotomous outcomes were summarized as prevalence, and odds ratios (ORs) and continuous outcomes as standardized mean difference (SMD) with 95% confidence interval (CI). The risk of bias and subgroup analyses were assessed using Stata/SE 15.1 and R 4.1.2. The results showed that compared with women treated by ART in the pre-COVID-19 time frame, women undergoing ART after the COVID-19 pandemic exhibited no significant difference in the clinical pregnancy rate (OR 1.07, 95% CI 0.97 to 1.19; I ²=0.0%), miscarriage rate (OR 0.95, 95% CI 0.79 to 1.14; I ²=38.4%), embryo cryopreservation rate (OR 2.90, 95% CI 0.17 to 48.13; I ²=85.4%), and oocyte cryopreservation rate (OR 0.30, 95% CI 0.03 to 3.65; I ²=81.6%). This review provided additional evidence for gynecologists to guide the management of women undergoing ART treatment during the COVID-19 pandemic timeframe.     

The impact of English language learner status on screening for emotional and behavioral disorders: A differential item functioning (DIF) study

There have been significant changes in the racial/ethnic and linguistic background of students attending public schools in the United States. The number of public‐school students who are English language learners (ELLs) participating in programs of language assistance has more than doubled over the past two decades. In 1993–1994, 5.1% of public‐school students in the United States were ELLs, or an estimated 2.1 million students. As of 2014–2015, 9.4% of students were ELLs, or an estimated 4.6 million students. It is estimated that by 2030, upward of 40% of school children will speak English as a second language. Meeting the needs of students who are not proficient in English is challenging for school professionals and even more so if they are identified for special services. Researchers have found that ELL students live in situations with numerous high‐risk factors, including poverty, inadequate schools, poor and violent neighborhoods, and limited access to adequate health care, mental health services, and schools. As a group, these students are more likely to underperform academically, have a lower grade point average, and drop out of school compared to non‐ELL Latino students.     

宋代宗族风水观念与现代环境保护刍议

中国的风水说源远流长,在堪舆风水说的影响下,宋代的家族或宗族组织为了保护“龙脉”或“风水”,禁止族人或外族人在祖坟山上或附近种植某些经济作物,禁止砍伐祖坟山上及其周围树木,有意无意之中避免了水土流失,这在某种意义上说是为了达到人与自然的和谐统一即“天人合一”而采取的保护生态环境的措施,这些措施对当代的生态环境保护有着可贵的借鉴和参考价值。     

Cultivating moral consciousness: The quintessential relation of practical reason and mind (Gemüt) as a bulwark against the propensity for radical evil

Abstract

To perfect human beings with an innate propensity for radical evil is a formidable task. Kant explicitly says that the propensity for evil is not eradicable; it is rooted in human nature, specifically in the human power of choice-making. The task is to reorient the natural order of choice-making (which derives its maxim from an object of the inclinations), to the moral order that takes the moral law as its supreme principle. I explicate the role of a specific capacity of the human subjective side of judging in this process; namely, of ‘mind’ in its sense as Gemüt. While human willing and choice-making are subject to the influence of sensuousness (the inclinations and passions), Gemüt is a capacity of sensibility (Sinnlichkeit) that allows the human subject to enjoy the feeling of being pleased in the fulfillment of duty. Its four specific aesthetic preliminary concepts of responsiveness to concepts of duty – moral feeling (as respect for the law), conscience, love of humanity, and respect for oneself (self-esteem) – must be cultivated in order to make objective practical reason also subjectively practical. Thereby one secures a bulwark against the ineliminable propensity for evil whose first effect is to destroy inner moral integrity.     

《国家中长期教育改革和发展规划纲要(2010-2020年)》的价值结构分析

本研究将政策文本中的价值分为反映物质层面的实体价值和反映精神层面的符号价值。通过对《国家中长期教育改革和发展规划纲要(2010-2020年)》的价值结构分析以及与改革开放以来前三次教育改革政策文本的比较,《规划纲要》的价值结构具有以下特征:1、实体价值比重大于符号价值,价值组合以实体价值为主;2、实体价值比重上升,技术价值占实体价值首位3;、符号价值比重下降,意识形态和规划目标是符号价值的主要组成部分。研究进一步指出,《规划纲要》价值结构的变化体现了政策制定者更加注重以人为本、公平等价值观念。     

Towards Inclusive Learning Environments (TILE): Developing the ‘Roadmap for the Inclusion of Students with Special Educational Needs in Vocational Education and Workplace Settings’

Twenty years after UNESCO's Salamanca Statement enshrined international action for provision for children, youth and adults with special educational needs within the regular educational system, this article presents the current underpinning international and national UK context for developing inclusion in vocational education and training and workplace settings. This context is explored through the justification for developing an EU‐funded project entitled ‘Towards Inclusive Learning Environments (TILE)’ and the creation of an associated audit tool, the ′Roadmap for Inclusion′, by a partnership group consisting of universities and VET settings from Finland, the Czech Republic, Estonia and England.