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Enhanced photodegradation of phenolic compounds by adding TiO_2 to soil in a rotary reactor

Journal of Environmental Sciences 2006年第6期18卷 1107-1112页

作者： WANG Jing-xian CHEN Shuo QUAN Xie zhao hui-min zhao Ya-zhi School of Environmental and Biological Science and Technology Dalian University of Technology Key Laboratory of Industrial Ecology and Environmental Engineering Ministry of EducationDalian 116023 China

Photodegradation ofpentachlorophenol （PCP） and p-nitrophenol （PNP） in soil was carried out in a designed rotary reactor, which can provide the soil particles with continually uniform irradiation, and on a series of thin soil layers. TiO2, as a kind of environmental friendly photocatalyst, was introduced to the soil to enhance the processes. Compared with that on the soil layers, photodegradation of PCP at initial concentration of 60 mg/kg was improved dramatically in the rotary reactor no matter whether TiO2 was added, with an increase of 3.0 times in the apparent first-order rate constants. The addition of 1 wt% TiO2 furthered the improvement by 1.4 times. Without addition of TiO2, PNP （initial concentration of 60 mg/kg） photodegradation rate in the rotary reactor was similar to that on the soil layers. When 1 wt% additional TiO2 was added, PNP photodegradation was enhanced obviously, and the enhancement in the rotary reactor was 2 times of that on the soil layers, which may be attributed to the higher frequency of the contact between PNP on soil particles and the photocatalyst. The effect of soil pH and initial concentrations of the target compounds on the photodegradation in the rotary reactor was investigated. The order of the degradation rate at different soil pH was relative to the aggregation of soil particles during mixing in the rotary reactor. Photodegradation of PCP and PNP at different initial concentrations showed that addition of TiO2 to enhance the photodegradation was more suitable for contaminated soil with higher concentration of PCP, while was effective for contaminated soil at each PNP concentration tested in our study.

关键词： TiO2 photodegradation phenolic compounds soil remediation

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Eosinopenia is a predictive factor for the severity of acute ischemic stroke

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Neural Regeneration Research 2019年第10期14卷 1772-1779页

作者： hui-min zhao Wen-Qian Qin Pei-Ji Wang Zhong-min Wen Department of Neurology the Second Affiliated Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina Department of Orthopedics the Second Affiliated Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina

Previous data have revealed an association between eosinopenia and mortality of acute ischemic ***,the relationship of eosinopenia with infarct volume,infection rate,and poor outcome of acute ischemic stroke is still *** retrospective study included 421 patients(273 males,65%;mean age,68.0± 13.0 years)with first acute ischemic stroke who were hospitalized in the Second Affiliated Hospital of Soochow University,China,from January 2017 to February *** data,neuroimaging results,and modified Rankin Scale scores were *** were divided into four groups according to their eosinophil percentage level(3)after adjusting for potential confounding factors(P-trend<0.001).These findings suggest that eosinopenia has the potential to predict the severity of acute ischemic *** study was approved by the Ethics Committee of the Second Affiliated Hospital of Soochow University,China(approval number:K10)on November 10,2015.

关键词： nerve regeneration eosinopenia eosinophil ischemia stroke infarct volume infection clinical outcome neutrophilia risk factors predictive factor neural regeneration

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First total synthesis of (±)-abyssinoflavanone V

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Chinese Chemical Letters 2008年第6期19卷 658-660页

作者： Jin hui Yang Yan min zhao Cong Bin Ji Key Laboratory of Energy Sources and Chemical Engineering of Ningxia Ningxia University Yinchuan 750021 China

The total synthesis of （±）-abyssinoflavanone V was first achieved through C-prenylation, selective protection of phenolic hydroxyl group, aldol condensation, cyclization and deprotection starting from cheap 4-hydroxybenzaldehyde and 2,4,6- trihydroxyacetophenone, with total yield 24%. All structures of new compounds were confirmed by IR, 1^H NMR and MS.

关键词： Abyssinoflavanone V Flavanone Isoprenylflavanoids Total synthesis

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Stochastic Volatility Modeling based on Doubly Truncated Cauchy Distribution and Bayesian Estimation for Chinese Stock Market

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Acta Mathematicae Applicatae Sinica 2023年第4期39卷 791-807页

作者： Cai-feng WANG Cong XIE Zi-yu MA hui-min zhao School of Mathematics and Physics University of Science and Technology BeijingBeijing 100083China School of Business Sun Yat-sen UniversityGuangzhou 510275China

In order to measure the uncertainty of financial asset returns in the stock market, this paper presents a new model, called SV-dt C model, a stochastic volatility(SV) model assuming that the stock return has a doubly truncated Cauchy distribution, which takes into account the high peak and fat tail of the empirical distribution simultaneously. Under the Bayesian framework, a prior and posterior analysis for the parameters is made and Markov Chain Monte Carlo(MCMC) is used for computing the posterior estimates of the model parameters and forecasting in the empirical application of Shanghai Stock Exchange Composite Index(SSECI) with respect to the proposed SV-dt C model and two classic SV-N(SV model with Normal distribution)and SV-T(SV model with Student-t distribution) models. The empirical analysis shows that the proposed SV-dt C model has better performance by model checking, including independence test(Projection correlation test), Kolmogorov-Smirnov test(K-S test) and Q-Q plot. Additionally, deviance information criterion(DIC) also shows that the proposed model has a significant improvement in model fit over the others.

关键词： stochastic volatility model doubly truncated Cauchy distribution Bayesian estimation Markov Chain Monte Carlo method deviance information criterion

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Negative permittivity of reduced graphene oxide/polyvinylidene fluoride membranous composites adjusted by heat treatment

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Rare Metals 2024年第11期43卷 5964-5974页

作者： Kai Sun min-hui zhao Peng-Tao Yang min Chen Qing Hou Wen-Xin Duan Run-Hua Fan College of Ocean Science and Engineering Shanghai Maritime UniversityShanghai 201306China School of Civil Engineering Shandong Jiaotong UniversityJinan250357China Institute of Photonic Chips University of Shanghai for Science and TechnologyShanghai 200093China

Flexible composites with negative permittivity have a very broad development prospect in flexible electronics and wearable ***,how to control the negative permittivity except for from their intrinsic properties of components is still a *** this study,the negative permittivity and frequency dispersion were adjusted by changing the heat treatment *** fluoride(PVDF)was selected as the flexible matrix and reduced graphene oxide(rGO)as the functional filler to prepare rGO/PVDF membranous *** negative permittivity was observed in rGO/PVDF composites film,and the effect of heat treatment temperature on the negative permittivity was further *** indicated that a higher heat treatment temperature contributed to the formation of conductive network,so as to obtaining negative *** the molding temperature was 70℃,the negative permittivity spectrum conformed to the Drude model was only observed in the composites with 35 wt%content of *** the heat treatment temperature reached 180℃,when the content of rGO decreased to 25 wt%,the composites film achieved negative permittivity(~-10),which had a low-frequency dispersion in the test frequency *** negative permittivity of in composites can be regulated by adjusting the heat treatment temperature,which promotes the application and development of flexible metamaterials in underwater sensing and detection,etc.

关键词： Flexible composites Negative permittivity Heat treatment Metamaterial

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Diverse coagulopathies in a rabbit model with different abdominal injuries

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World Journal of Emergency Medicine 2017年第2期8卷 141-147页

作者： Ruo Wu Luo-gen Peng hui-min zhao Department of Emergency Medicine Haikou People's Hospital Affi liated to Central South University Department of Emergency Medicine the First Affi liated Hospital of Guangxi Medical University

BACKGROUND: Although coagulopathy can be very common in severe traumatic shock patients, the exact incidence and mechanism remain unclear. In this study, a traumatic shock rabbit model with special abdomen injuries was developed and evaluated by examining indicators of clotting and fi ***: Forty New Zealand white rabbits were randomly divided into four groups: group 1(sham), group 2(hemorrhage), group 3(hemorrhage-liver injury), and group 4(hemorrhage-liver injury/intestinal injury-peritonitis). Coagulation was detected by thromboelastography before trauma(T0), at 1 hour(T1) and 4 hours(T2) after ***: Rabbits that suffered from hemorrhage alone did not differ in coagulation capacity compared with the sham group. The clot initiations(R times) of group 3 at T1 and T2 were both shorter than those of groups 1, 2, and 4(Pminal traumatic shock show diverse coagulopathy in the early phase. Isolated hemorrhagic shock shows no obvious effect on coagulation. In contrast, blunt hepatic injury with hemorrhage shows hypercoagulability, whereas blunt hepatic injury with hemorrhage coupled with peritonitis caused by a ruptured intestine shows a tendency toward hypocoagulability.

关键词： Hemorrhagic shock Multiple trauma model Inflammation Coagulopathy Thromboelastography

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A Large Scale of Nurses Participated in Beating down COVID-19 in China:The Physical and Psychological Distress

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Current Medical Science 2021年第1期41卷 31-38页

作者： Quan WANG Jun-yao FAN hui-min zhao Yue-ting LIU Xin-xue XI Ling-lin KONG Jie LI Jing MAO School of Nursing Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Tongji Hospital Tongji Medical College Hucizhong University of Science and TechnologyWuhan 430030China

The outbreak of coronavirus disease 2019 (COVID-19) posed an unprecedented threat to health care providers (HCPs) in Wuhan, China, especially for nurses who were frequently exposed to infected or suspected patients. Limited information was available about the working experience of nurses in fighting against the pandemic. To learn the physical and psychological responses of nurses during the pandemic and explore the potential determinants, we conducted a large-scale survey in Wuhan. This multicenter cross-sectional study enrolled 5521 nurses who worked in designated hospitals, mobile cabins, or shelters during the pandemic. A structured online questionnaire was distributed to assess the physical discomforts, emotional distress and cognitive reactions of nurses at work, and the log-binomial regression analysis was performed to explore potential determinants. A considerable proportion of nurses had symptoms of physical discomforts [3677 (66.6%)] and emotional distress [4721 (85.5%)]. Nurses who were directly involved in the care of patients (i.e., care for severe patients: RR, 2.35;95% CI, 1.95–2.84), with irregular work schedules (RR, 2.36;95% CI, 1.95–2.87), and working overtime (RR, 1.34;95% CI, 1.08–1.65) were at a higher risk for physical discomforts. Nurses who were directly involved in the care of patients (i.e., care for severe patients: RR, 1.78;95% CI, 1.40–2.29), with irregular work schedules (RR, 3.39;95% CI, 2.43–4.73), and working overtime (RR, 1.51;95% CI, 1.12–2.04) were at a higher risk for emotional distress. Therefore, formulating reasonable work schedules and improving workforce systems are necessary to alleviate the physical and emotional distress of nurses during the pandemic.

关键词： coronavirus disease 2019 pandemic nurses distress

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(D-Ser2) oxyntomodulin recovers hippocampal synaptic structure and theta rhythm in Alzheimer’s disease transgenic mice

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Neural Regeneration Research 2022年第9期17卷 2072-2078页

作者： Guang-zhao Yang Qi-Chao Gao Wei-Ran Li Hong-Yan Cai hui-min zhao Jian-Ji Wang Xin-Rui zhao Jia-Xin Wang Mei-Na Wu Jun Zhang Christian Hölscher Jin-Shun Qi zhao-Jun Wang Department of Cardiovascular Medicine the First Hospital of Shanxi Medical UniversityTaiyuanShanxi ProvinceChina Department of Physiology Shanxi Medical UniversityKey Laboratory of Cellular PhysiologyMinistry of EducationKey Laboratory of Cellular Physiology in Shanxi ProvinceTaiyuanShanxi ProvinceChina Department of Microbiology and Immunology Shanxi Medical UniversityTaiyuanShanxi ProvinceChina Functional Laboratory Center Shanxi Medical UniversityTaiyuanShanxi ProvinceChina Research and Experimental Center Henan University of Chinese MedicineZhengzhouHenan ProvinceChina

In our previous studies,we have shown that(D-Ser2)oxyntomodulin(Oxm),a glucagon-like peptide 1(GLP-1)receptor(GLP1R)/glucagon receptor(GCGR)dual agonist peptide,protects hippocampal neurons against Aβ1-42-induced cytotoxicity,and stabilizes the calcium homeostasis and mitochondrial membrane potential of hippocampal ***,we have demonstrated that(D-Ser2)Oxm improves cognitive decline and reduces the deposition of amyloid-beta in Alzheimer’s disease model ***,the protective mechanism remains *** this study,we showed that 2 weeks of intraperitoneal administration of(D-Ser2)Oxm ameliorated the working memory and fear memory impairments of 9-month-old 3×Tg Alzheimer’s disease model *** addition,electrophysiological data recorded by a wireless multichannel neural recording system implanted in the hippocampal CA1 region showed that(D-Ser2)Oxm increased the power of the theta *** addition,(D-Ser2)Oxm treatment greatly increased the expression level of synaptic-associated proteins SYP and PSD-95 and increased the number of dendritic spines in 3×Tg Alzheimer’s disease model *** findings suggest that(D-Ser2)Oxm improves the cognitive function of Alzheimer’s disease transgenic mice by recovering hippocampal synaptic function and theta rhythm.

关键词： (D-ser2)oxyntomodulin Alzheimer’s disease cognitive decline glucagon-like peptide-1 hippocampus local field potential synapse theta rhythm

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A long journey： report of a case with pancreatic abscess extending to the groin

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Chinese Medical Journal 2010年第22期123卷 3362-3363页

作者： LU hui-min ZHANG zhao-da HU Wei-ming Department of Hepato-bilio-pancreatic surgery West China Hospital Sichuan University Chengdu Sichuan 610041 China

Acute pancreatitis is an inflammatory process with .variable involvement of regional tissue, remote organ systems, or both. Various complications of pancreatitis are common, including intra- or extrapancreatic fluid collections and development of a pancreatic pseudocyst or abscess, or even pancreatic tissue necrosis. Infected necrosis involves diffuse bacterial inflammation of necrotic pancreatic and peripancreatic tissue without significant pus collection. In contrast, a pancreatic abscess is a circumscribed collection of pus, usually in proximity to the pancreas, that is positive for bacteria, bounded by adjacent tissue and organs and has minimal amounts of associated necrosis.

关键词： pancreatic abscess groin

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Albuterol in the treatment of acute respiratory distress syndrome: A meta-analysis of randomized controlled trials

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World Journal of Emergency Medicine 2015年第3期6卷 165-171页

作者： Ruo Wu Shi-yun Lin hui-min zhao Department of Emergency Medicine First Affiliated Hospital of Guangxi Medical University Department of Cardiology First Affiliated Hospital of Guangxi Medical University

BACKGROUND: This meta-analysis of randomized controlled trials aimed to systematically evaluate the value of albuterol in the treatment of patients with acute respiratory distress syndrome(ARDS).DATA SOURCES: Randomized controlled trials on albuterol treatment of ARDS from its inception to October 2014 were searched systematically. The databases searched included: Pub Med, Ovid EMBASE, Ovid Cochrane, CNKI, WANFANG and VIP. The trials were screened according to the pre-designed inclusion and exclusion criteria. We performed a systematic review and meta-analysis of the randomized controlled trials(RCTs) on albuterol treatment, attempting to improve outcomes, i.e. lowering the 28-day mortality and ventilator-free ***: Three RCTs involving 646 patients met the inclusion criteria. There was no significant decrease in the 28-day mortality(risk difference=0.09; P=0.07, P for heterogeneity=0.22, I2=33%). The ventilator-free days and organ failure-free days were significantly lower in the patients who received albuterol(mean difference=–2.20; P<0.001, P for heterogeneity=0.49, I2=0% and mean difference=–1.71, P<0.001, P for heterogeneity=0.60, I2=0%).CONCLUSIONS: Current evidences indicate that treatment with albuterol in the early course of ARDS was not effective in increasing the survival, but significantly decreasing the ventilator-free days and organ failure-free days. Owing to the limited number of included trails, strong recommendations cannot be made.

关键词： Albuterol Acute respiratory distress syndrome Mortality Ventilator-free days

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