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Biosorption of Direct Black 38 by dried anaerobic granular sludge

WANG Xuejiang, XIA Siqing, ZHAO Jianfu

《环境科学与工程前沿（英文）》 2008年第2卷第2期页码 198-202 doi: 10.1007/s11783-008-0031-y

摘要： The biosorption of Direct Black 38 by dried anaerobic granular sludge in a batch system under specific temperatures and initial pH was investigated. The adsorption reaction is pH dependent with higher removal at low pH. The adsorption equilibrium data fit very well with both Langmuir and Freundlich models in the concentration range of Direct Black 38 at all chosen temperatures. The adsorption parameters show that the adsorption of Direct Black 38 is an endothermic and more effective process at high temperatures. The kinetics of adsorption was found to be second order and adsorption rate constants increased with increasing temperature. Activation energy was determined as 26.8 kJ/mol for the process. This suggests that the adsorption of Direct Black 38 by dried anaerobic granular sludge is chemically controlled.

关键词： Langmuir kJ/mol temperature removal Freundlich

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Transition to a low-carbon city: lessons learned from Suzhou in China

MOL, Jining CHEN

《环境科学与工程前沿（英文）》 2012年第6卷第3期页码 373-386 doi: 10.1007/s11783-011-0338-y

摘要： Climate change has become one of the most serious challenges facing humanity; developing a low-carbon economy provides new opportunities for addressing this issue. Building a low-carbon city has been pursued by people with a high degree of enthusiasm in China. Different from actions at the national level and distinct from practices of developed countries, low-carbon development in Chinese cities should be placed on diverse concerns. Taking Suzhou of Jiangsu Province of China as a case city, this paper adopts a scenario analysis approach to explore strategic focal points in the transition to a low-carbon city. Within this transition, we mainly focus on the different contributions from two factors–economic restructuring and technological upgrading. Scenario analysis results show that 1) in the case of no breakthrough technologies, it is difficult to achieve absolute emission reductions; 2) technologies involved in optimizing energy structure and improving energy efficiency of basic service sectors should be highly emphasized in local planning; 3) in comparison with technological upgrading, economic structural adjustment could be a stronger contributor to mitigation, which is one of the main differences from developed countries. However, the key issue of economic restructuring is to promote the growth of emerging low-carbon industries, which requires not only a strategic choice of new industries but also an introduction of advanced low-carbon technologies. It is also found that establishing a local carbon emissions accounting system is a prerequisite and the first priority for realizing a low-carbon transition and government capacity buildings should be strengthened accordingly.

关键词： low-carbon city economic restructuring technology upgrading

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一项关于药物和补充剂对改善男性不育症患者的自然妊娠和精液参数影响的系统综述和网状荟萃分析 Article

Mol, 吴效科, Chi Chiu Wang

《工程（英文）》 2022年第16卷第9期页码 198-209 doi: 10.1016/j.eng.2021.07.009

摘要：

本研究采用网状荟萃分析对药物和补充剂治疗特发性男性不育症的疗效进行比较，以获得最佳治疗方法。对Medline、EMBASE、OVID和CNKI等数据库中发表于1990年1月至2021年6月的文献进行检索，检索关键词包括“男性不育”“药物疗法”“补充/营养疗法”及其相关术语等。将研究药物[主要包括促卵泡激素（FSH）、雄激素、克罗米芬/他莫昔芬（SERM）]或补充剂[主要是锌、硒、维生素C/E、卡尼丁、辅酶Q₁₀（CoQ₁₀）或联合治疗]治疗特发性不育男性的随机对照试验（RCT）纳入meta分析。按PRISMA声明中的报告规范提取数据，并使用偏倚风险工具和适用于网状meta分析的GRADE系统评估证据质量。研究的主要结局是活产率和自然妊娠率（SPR），次要结局是精子参数（包括精子浓度、前向运动百分比和形态）和不良反应。65项RCT被纳入分析，共包括7541名精子参数异常但激素水平正常的育龄男性。36项研究报道SPR，但仅三项研究报道活产率。纳入研究的质量评价为中、高级。与安慰剂或未治疗相比，卡尼汀联合维生素治疗显著增加SPR（RR = 3.7, 95% CI为1.6 ~ 8.5），脂肪酸补充剂显著增加精子浓度（MD = 12.5 × 10⁶ mL^–1, 95% CI为3.1 × 10⁶ ~ 22.0 × 10⁶）。SERM联合辅酶Q₁₀显著提升前向活力精子（MD = 11.0%, 95% CI为0.1% ~ 21.9%）和正常形态精子（MD = 11.0%, 95% CI为4.6% ~ 17.4%）。对改善SPR和精子浓度的最佳治疗方案分别是卡尼汀联合维生素和脂肪酸补充剂，即便排除具有高偏倚风险的研究，结果仍保持一致。对于少弱精子症男性，与安慰剂或未治疗相比，FSH（RR = 4.9, 95% CI为1.1 ~ 21.3）显著增加SPR，而SERM联合激肽酶可显著增加精子浓度（MD = 16.5 × 10⁶ mL^–1, 95% CI为1.6 × 10⁶ ~ 31.4 × 10⁶)，SERM联合辅酶Q₁₀则显著改善前向活力精子（MD = 11.3%, 95% CI为7.3% ~ 15.4%）和正常形态精子（MD = 11.2%, 95% CI为 5.4% ~ 16.9%）。在不良反应方面，脂肪酸补充剂和己酮可可碱分别与口臭或味觉差（RR = 8.1, 95% CI为1.0 ~ 63.5）和呕吐（RR = 8.0, 95% CI为1.0 ~ 63.0）相关。综上所述，对于改善不育男性配偶活产率的最佳治疗方案仍然不清楚。对于所有不孕夫妇和男性少弱精症不孕夫妇，卡尼汀联合维生素和FSH方案在成功实现自然妊娠方面分别优于其他方案。其他治疗方法对妊娠结局的疗效仍需要进一步验证。

关键词：男性不育症药物补充剂自然妊娠率精子参数

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特力阿扎维林治疗新冠病毒肺炎的疗效和安全性——一项随机对照试验 Article

Mol, 杨宝峰

《工程（英文）》 2020年第6卷第10期页码 1185-1191 doi: 10.1016/j.eng.2020.08.011

摘要：

目前，尚无有效疗法可治愈由新型冠状病毒（severe acute respiratory syndrome coronavirus 2, SARS-CoV-2）引起的新型冠状病毒肺炎（coronavirus disease 2019, COVID-19）。为了评估抗病毒药物特力阿扎维林治疗COVID-19的有效性和安全性，本研究针对感染COVID-19的成年住院患者开展了一项随机双盲对照试验。本研究从10个分中心招募COVID-19患者，并将患者按1:1的比例随机分为两组。试验组的患者每天服用250 mg的特力阿扎维林药物3~4次，对照组患者则服用安慰剂，为期共7 d。主要结局指标为临床改善时间，临床改善时间的定义为随机分组28 d内患者的体温、呼吸频率、血氧饱和度、咳嗽频率和肺CT（计算机断层扫描，computed tomography）所显示的肺部感染吸收情况全部恢复正常的时间。次要结局指标包括主要结局指标的各个组成成分，如肺部感染吸收的平均时间和吸收比例，以及用咽拭子采样法连续2次SARS-CoV-2核酸检测阴性的转阴率。与此同时，记录合并的治疗药物、不良事件和严重不良事件。由于需要进行住院治疗的新增感染病例的减少，本研究在招募52名患者后便停止招募。将52名患者随机分为服用特力阿扎维林药物的试验组（n = 26）和服用安慰剂的对照组（n = 26）。结果显示，两组临床改善时间并无明显差异[中位数，7 d vs. 12 d；风险比（RR）为2.0；95％置信区间（CI）为0.7~5.6；p = 0.2]。服用特力阿扎维林的试验组中有10例患者发生临床改善，服用安慰剂的对照组中有6例患者出现临床改善（38.5％ vs. 23.1％，RR为2.1；95％CI为0.6~7.0；p = 0.2）。除了肺部感染的吸收情况外（试验组50.0％，对照组26.1％），其余主要结局指标的所有指标均在28 d内恢复正常。此外，试验组的患者对呼吸系统、心脏、肾、肝或凝血功能等方面的的合并治疗较对照组少。尽管特力阿扎维林药物对COVID-19患者的疗效尚未达到统计学上的显著性水平，但本研究结果表明，由于特力阿扎维林药物具有抗病毒作用，将其用于COVID-19的治疗也可能具有一定的疗效。对此，需要进一步的研究来予以证明和确认。

关键词：新型冠状病毒肺炎特力阿扎维林有效性安全性

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Towards Cr(VI)-free anodization of aluminum alloys for aerospace adhesive bonding applications: A review

Mol

《化学科学与工程前沿（英文）》 2017年第11卷第3期页码 465-482 doi: 10.1007/s11705-017-1641-3

摘要： For more than six decades, chromic acid anodizing (CAA) has been the central process in the surface pre-treatment of aluminum for adhesively bonded aircraft structures. Unfortunately, this electrolyte contains hexavalent chromium (Cr(VI)), a compound known for its toxicity and carcinogenic properties. To comply with the new strict international regulations, the Cr(VI)-era will soon have to come to an end. Anodizing aluminum in acid electrolytes produces a self-ordered porous oxide layer. Although different acids can be used to create this type of structure, the excellent adhesion and corrosion resistance that is currently achieved by the complete Cr(VI)-based process is not easily matched. This paper provides a critical overview and appraisal of proposed alternatives to CAA, including combinations of multiple anodizing steps, pre- and post anodizing treatments. The work is presented in terms of the modifications to the oxide properties, such as morphological features (e.g., pore size, barrier layer thickness) and surface chemistry, in order to evaluate the link between fundamental principles of adhesion and bond performance.

关键词： aluminum Cr(VI)-free surface pre-treatments anodizing adhesive bonding

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多囊卵巢综合征无排卵的胰岛素信号和雄激素合成的新遗传风险和代谢特征 Article

Mol, 师咏勇

《工程（英文）》 2023年第23卷第4期页码 103-111 doi: 10.1016/j.eng.2022.08.013

摘要：

促排卵是多囊卵巢综合征（PCOS）不孕症的一线治疗方案。卵巢对促排卵治疗的排卵应答差被认为与胰岛素抵抗和高雄激素血症相关。在一个包含1000名PCOS不孕妇女（PCOSAct）的前瞻性队列中，我们开展了一项全外显子联合靶向单核苷酸多态性（SNP）测序以及代谢组学研究。在全基因组水平找出与无排卵显著相关的常见变异和罕见突变，并通过机器学习算法构建排卵预测模型。研究发现，ZNF438基因中标记为rs2994652 (p=2.47×10^–8)的常见变异和REC114基因中的一个罕见功能突变（rs182542888，p=5.79×10^–6）与促排卵治疗失败显著相关。携带rs2994652 A等位基因和REC114 p.Val101Leu (rs182542888)的PCOS不孕妇女进行促排卵治疗的总排卵率更低（分别为：比值比（OR）=1.96，95% 置信区间（CI）[1.55~2.49]；OR=11.52，95% CI [3.08~43.05]），出现排卵的间隔时间更长（平均56.7天vs.49.0天，p<0.001；78.1天vs.68.6天，p=0.014）。对于rs2994652突变者，L-苯丙氨酸水平升高并与胰岛素抵抗稳态模型（HOMA-IR）指数（r=0.22, p=0.05）和空腹血糖（r=0.33, p=0.003）呈正相关；对于rs182542888突变者，花生四烯酸代谢产物水平下降并与升高的抗苗勒管激素（r=－0.51, p=0.01）和总睾酮（r=－0.71, p=0.02）呈负相关。整合基因变异位点、代谢产物及临床特征的联合预测模型可提高对排卵的预测能力[曲线下面积（AUC）=76.7%]。ZNF438基因的一个常见变异和REC114基因的一个罕见功能突变，以及与二者相关的苯丙氨酸和花生四烯酸代谢物改变，与PCOS女性不孕症的促排卵治疗失败相关。