检索结果-南通市图书馆

Modelling and optimization of nonylphenol biosorption by novel lowcost magnetic Chlorella vulgaris

Emerging Contaminants 2024年第3期10卷 170-180页

作者： Fatemeh Rahmani Nooshin Sajjadi Mohammad hadi dehghani Mozhgan Zaeimdar Environmental Science and Technology Department Marine Science and Technology FacultyNorth Tehran BranchIslamic Azad UniversityTehranIran Department of Environmental Health Engineering School of Public HealthTehran University of Medical SciencesTehranIran Center for Solid Waste Research Institute for Environmental ResearchTehran University of Medical SciencesTehranIran

Discharging untreated wastewater causes environmental *** research examined the efficiency of removal and the adsorption process of Emerging Contaminant nonylphenol(NP)using magnetic Chlorella vulgaris(M-Chlorella vulgaris).The characterization of M-Chlorella vulgaris involved XRD,FESEM,EDS-Mapping,BET,FTIR,and VSM *** impact of four different parametersdpH,MChlorella vulgaris dose,initial concentration of NP,and contact time on the biosorption process was *** model and optimize the study while minimizing costs and the number of experiments,Response Surface Methodology(RSM)with Central Composite Design(CCD)was *** to the findings,the quadratic model with adjusted R^(2)=0.96 was the best fitted among the other *** pH=3.5,dosage=2.5 g/l,NP concentration=4 mg/l,and reaction time=70 min,which are the optimal parameters,the maximum removal effectiveness was about 91%.The Langmuir model(R^(2)=0.998)and pseudo-second-order model(R^(2)=0.997)exhibited the best fits for the adsorption isotherm and kinetic studies,*** characteristics of M-Chlorella vulgaris were determined to facilitate a spontaneous nature,and thermodynamic experiments indicated that the process of adsorption of nonylphenol is *** inexpensiveness and availability of adsorbent,suitable efficiency in the biosorption of pollutant and magnetic collection of pollutant from the aquatic environment can be mentioned as the advantages of this process.

关键词： RSM-CCD Nonylphenol Biosorption Algea Emerging contaminants M-Chlorella vulgaris

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Faunal data and envenomation emergency first aid of cone snails (Conus spp.) in Qeshm Island, the Persian Gulf

引用

Asian Pacific Journal of Tropical Medicine 2017年第12期10卷 1167-1171页

作者： Mehdi Khoobdel hadi dehghani Ali Mehrabi Tavana Mohammad Ghasemi Seyyed Mohammad Dakhteh Majid Askari Hesni Mohsen Rezaie-Atagholipour Health Research Center Baqiyatallah University of Medical SciencesTehranIran Department of Marine Biology Faculty of ScienceUniversity of HormozganBandar AbbasIran Health Management Research Center Baqiyatallah University of Medical SciencesTehranIran Environmental Management Office Qeshm Free Area OrganizationQeshm IslandIran Department of Biology Faculty of ScienceShahid Bahonar University of KermanKermanIran

Objective: To investigate the fauna of a highly venomous marine species group, the cone snails(Family Conidae), in the shores of Qeshm Island, of evaluating the possibility of envenomation in the area and summarize recommendations for emergency first ***: Shores surrounding Qeshm Island were surveyed to collect cone snails during cold(February and March) and warm(May and June) seasons of 2017. Collected snails were identified to the species level. Abundance and species richness were estimated in shores of different structures, including muddy and sandy-rocky shores. Also, the most updated medical literature was reviewed to summarize related emergency first ***: Three cone snail species were recorded from southern sandy-rocky shores of the Island, in decreasing order of abundance, included crowned cone(Conus coronatus)(65%), feathered cone(Conus pennaceus)(28%), and frigid cone(Conus frigidus)(7%).Abundance of these species were significantly higher in cold season compared to the warm season(P < 0.05). No cone snails were recorded along the northern muddy shores of the ***: Envenomation can cause various symptoms ranging from minor local pain to systemic paralysis and death due to respiratory failure. We recommend an awareness programme for the seashore visiting public.

关键词： Envenomation symptoms Subtropical coastal waters Sandy shores Venom

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hydrogel-based materials as antibacterial agents and super adsorbents for the remediation of emerging pollutants:A comprehensive review

引用

Emerging Contaminants 2024年第3期10卷 46-67页

作者： Shabnam Ahmadi Sina Pourebrahimi Alhadji Malloum Majid Pirooz Christian Osagie Soumya Ghosh Muhammad Nadeem Zafar Mohammad hadi dehghani Department of Environmental Health Engineering Faculty of Medical SciencesTarbiat Modares UniversityPO Box 14115-111TehranIran Department of Chemical and Materials Engineering Concordia University7141 Sherbrooke Street WestMontrealQuebecH4B 1R6Canada Department of Physics Faculty of ScienceUniversity of MarouaPO Box 46MarouaCameroon Department of Chemistry University of the Free StatePO Box 3399300BloemfonteinSouth Africa Research and Development Division Pad Jam Polymer Development Company(PJPC)and Department of Chemical EngineeringUniversity of Isfahan81746-73441IsfahanIran Stochastics and Its Applications Brandenburg University of Technology Cottbus-SenftenbergPlatz der Deutschen Einheit 103046CottbusGermany Natural and Medical Sciences Research Center University of NizwaNizwa616Oman Department of Chemistry University of Gujrat50700GujratPakistan Department of Environmental Health Engineering School of Public HealthTehran University of Medical SciencesTehranIran Center for Solid Waste Research Institute for Environmental ResearchTehran University of Medical SciencesTehranIran

Hydrogels have various potential applications due to their unique characteristics and recently,hydrogels have been utilized as adsorbents in wastewater treatment because of their ability to remove contaminants from *** strong hydrogels with high adsorption capabilities is crucial for effective wastewater *** and researchers are working to improve the properties of hydrogels by incorporating inorganic elements into polymer networks,which further reduces the costs as well as simplifies their *** polymers like starch and alginate are widespread due to their economic and biological advantages,such as biodegradability,biocompatibility,reduced toxicity,environmental friendliness,and low *** adsorption of pollutants onto hydrogels as well as their use as antimicrobial agents has garnered significant *** review paper summarizes the latest studies on using hydrogels as adsorbents to remove endocrine-disrupting chemicals(EDCs),persistent organic pollutants(POPs),and other emerging pollutants from water environments along with their use as antimicrobial *** the first step,different classes of hydrogels and different characterization techniques have been *** antimicrobial potential of hydrogels is elaborated to understand how these hydrogels can be a potential candidate for such *** discussing the adsorption application of hydrogels,different isothermal,kinetics and thermodynamics models have been discussed to highlight the mechanism and nature of forces involved in adsorption of *** different simulations such as DFT and MD have been discussed to get more holistic understanding of pollutants adsorption onto hydrogels.A limited number of studies have utilized other techniques such as Monte Carlo simulations and computational fluid dynamics(CFD)so it is important to explore a variety of computational methods to gain a comprehensive understanding of the adsorption process o

关键词： Hydrogel Emerging pollutant Adsorption Water and wastewater Monte Carlo simulations Antimicrobial activity

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Investigating the potential of using acoustic frequency on the degradation of linear alkylbenzen sulfonates from aqueous solution

引用

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第9期8卷 1462-1468页

作者： dehghani Mohammad hadi MAHVI Amir Hossein NAJAFPOOR Ali Asghar AZAM Kamal Department of Environmental Health Engineering School of Public HealthCenter for Environmental ResearchMedical Sciences/University of TehranTehranI.R. Iran Department of Environmental Health School of Public HealthMashhad University of Medical SciencesMashhadI.R. Iran Department of Epidemiology and Biostatistics School of Public HealthMedical Sciences/University of TehranTehranI.R. Iran

The effectiveness of using acoustical （sonochemical） reactor for degradation of linear alkylbenzen sulfonate （LAS） from aqueous solution was investigated. LASs are anionic surfactants, found in relatively high amounts in domestic and industrial wastewaters. In this study, experiments on LAS solution were performed using methylene blue active substances （MBAS） method. The effectiveness of acoustical processor reactor for LAS degradation is evaluated with emphasis on the effect of treatment time and initial LAS concentration. Experiments were performed at initial concentrations of 0.2, 0.5, 0.8 and 1.0 mg/L, acoustic frequency of 130 kHz, applied power of 500 W and temperature of 18℃-20℃. At the conditions involved, LAS degradation was found to increase with increasing sonochemical time. In addition, as the concentration increased, the LAS degradation rate decreased in the acoustical processor reactor.

关键词： Acoustical reactor Linear alkylbenzen sulfonate (LAS) Acoustic frequency Treatment time Power

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Investigation and evaluation of ultrasound reactor for reduction of fungi from sewage

引用

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2007年第7期8卷 493-497页

作者： dehghani Mohammad hadi MAHVI Amir Hossein JAHED Gholam Reza SHEIKHI Razieh Department of Environmental Health Engineering School of Public Health Medical Sciences/University of Tehran P.O. Box 14155-6145 Tehran I.R. Iran

The objective of the investigation was to study the application of ultrasound reactor technology (USRT) as a disin-fectant for reduction of fungi from sewage effluent. Fungi are carbon heterotrophs that require preformed organic compounds as carbon sources. USRT is an attractive means to improve water quality because of the system simplicity and no production of toxic by-products. An ultrasound reactor produces strong cavitation in aqueous solution causing shock waves and reactive free radicals by the violent collapse of the cavitation bubble. These effects should contribute to the physical disruption of microbial structures and inactivation of organisms. There was significant reduction in fungal growth, with decreased fungal growth with increasing USRT. In this study, ultrasound irradiation at a frequency of 42 kHz was used to expose suspensions of fungi to evaluate the disinfection efficacy of the ultrasound reactor. Also, this study showed that in this system more than 99% reduction of sewage fungi was achieved after 60 min.

关键词： Ultrasound reactor Sewage Fungi Cavitation Frequency

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Post-transplant lymphoproliferative disorder after liver transplantation: Incidence, long-term survival and impact of serum tacrolimus level

引用

World Journal of Gastroenterology 2017年第7期23卷 1224-1232页

作者： Ahad Eshraghian Mohammad hadi Imanieh Seyed Mohsen dehghani Saman Nikeghbalian Alireza Shamsaeefar Frouzan Barshans Kourosh Kazemi Bita Geramizadeh Seyed Ali Malek-Hosseini Transplant Research Center Shiraz University of Medical Sciences Gastroenterohepatology Research Center Namazi Hospital

To investigate incidence and survival of post-transplant lymphoproliferative disorder (PTLD) patients after liver *** cross-sectional survey was conducted among patients who underwent liver transplantation at Shiraz Transplant Center (Shiraz, Iran) between August 2004 and March 2015. Clinical and laboratory data of patients were collected using a data gathering *** were 40 cases of PTLD in the pediatric age group and 13 cases in the adult group. The incidence of PTLD was 6.25% in pediatric patients and 1.18% in adult liver transplant recipients. The post-PTLD survival of patients at 6 mo was 75.1% ± 6%, at 1 year was 68.9% ± 6.5% and at 5 years was 39.2% ± 14.2%. Higher serum tacrolimus level was associated with lower post-PTLD survival in pediatric patients (OR = 1.07, 95%CI: 1.006-1.15, P = 0.032). A serum tacrolimus level over 11.1 ng/mL was predictive of post PTLD survival (sensitivity = 90%, specificity = 52%, area under the curve = 0.738, P = 0.035).CONCLUSIONIncidence of PTLD in our liver transplant patients is comparable to other centers. Transplant physicians may consider adjustment of tacrolimus dose to maintain its serum level below this cutoff point.

关键词： Post-transplant lymphoproliferative disorder Liver transplantation Survival Tacrolimus Epstein-Barr virus

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Comparison of different diagnostic methods in infants with Cholestasis

引用

World Journal of Gastroenterology 2006年第36期12卷 5893-5896页

作者： Seyed Mohsen dehghani Mahmood Haghighat Mohammad hadi Imanieh Bita Geramizadeh Department of Pediatric Gastroenterology Gastroenterohepatology Research Center of Nemazee Hospital Shiraz University of Medical Sciences Shiraz Iran Department of Pathology Nemazee Hospital Shiraz University of Medical Sciences Shiraz Iran

AIM: To evaluate different methods in differentiating idiopathic neonatal hepatitis from biliary atresia. METHODS: Sixty-five infants with cholestatic jaundice and final diagnosis of idiopathic neonatal hepatitis and biliary atresia were studied prospectively from September 2003 to March 2006. A thorough history and physical examination were undertaken and the liver enzymes were examined. All cases underwent abdominal ultrasonography, hepatobiliary scintigraphy, and percutaneous liver biopsy. The accuracy, sensitivity, specificity and predictive values of these various methods were compared. RESULTS: There were 34 girls and 31 boys, among them 46 subjects had idiopathic neonatal hepatitis (age, 61 ± 17 d) and 19 had biliary atresia (age, 64 ± 18 d). The mean age at onset of jaundice was significantly lower in cases of biliary atresia when compared to idiopathic neonatal hepatitis cases (9 ± 13 d vs 20 ± 21 d; P = 0.032). The diagnostic accuracy of different methods was as follows: liver biopsy, 96.9%; clinical evaluation, 70.8%; ultrasonography, 69.2%; hepatobiliary scintigraphy, 58.5%; and liver enzymes, 50.8%.CONCLUSION: Our results indicate that clinical evaluation by an experienced pediatric hepatologist and a biopsy of the liver are considered as the most reliable methods to differentiate idiopathic neonatal hepatitis and biliary atresia.

关键词： Idiopathic neonatal hepatitis Biliary atresia Clinical evaluation Liver biopsy

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Organisms causing spontaneous bacterial peritonitis in children with liver disease and ascites in Southern Iran

引用

World Journal of Gastroenterology 2006年第36期12卷 5890-5892页

作者： Mahmood Haghighat Seyed Mohsen dehghani Abdolvahab Alborzi Mohammad hadi Imanieh Bahman Pourabbas Mehdi Kalani Department of Pediatric Gastroenterology Shiraz University of Medical Science Shiraz Iran Department of Professor Alborzi Clinical Microbiology Research Center Shiraz University of Medical Science Shiraz Iran

AIM： To determine the causative agents of spontaneous bacterial peritonitis （SBP） in children with liver disease and ascites in our center. METHODS： During a 2.5 year period, from September 2003 to March 2006, 12 patients with 13 episodes of SBP were studied. In all cases at the time of admission serum albumin and glucose, urinalysis and urine culture was performed. Analysis [white blood cell （WBC） count with differential, albumin, glucose], gram stain, culture by BACTEC method and antibiogram was done on ascitic fluids. Abdominal paracentesis was repeated after 48 h of antibiotic therapy for bacteriologic assay. The patients were followed for at least three months in a gastroenterology clinic. RESULTS： There were 7 girls （58%） and 5 boys （42%） with a median age of 5.2 years （range, 6 mo to 16 years）. All cases had positive ascitic fluid culture. Gram stain was positive in 5 （38.5%） of them. The isolated organisms were S. pneumoniae in 5 （38.5%）, E. coli in 2 （15.3%）, S. viridans in 2 （15.3%）, and K. pneumoniae, H. influenza, Enterococci, and nontypable Streptococcus each in one （7.7%）. All of them except Enterococci were sensitive to ciprofloxacin and ceftriaxone. All ascitic fluid cultures were negative after 48 h of antibiotic therapy. CONCLUSION： S. pneumoniae is the most common cause of SBP in the pediatric age group and we recommend a third generation cephalosporine （e.g., Ceftriaxlone or Cefotaxime） for empirical therapy in children with SBP.

关键词： Spontaneous bacterial peritonitis Children Cirrhosis Causes Empirical therapy

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Surveying of Pesticides Commonly on the Markets of Iran in 2009

引用

Journal of Environmental Protection 2011年第8期2卷 1113-1117页

作者： Rouhullah dehghani Seyed G. Moosavi hadi Esalmi Malihe Mohammadi Zahra Jalali Nargess Zamini 不详

Considering the potential pesticide side effects on environment, their short and long term untoward effects on living creatures, their excessive usage for producing more agricultural products, and also their application to destroy pests of any sort, the present study was carried out to investigate the used amount of common pesticides in Iran markets. A questionnaire was designed. Referring to pesticide selling shops and plants preservations organizations in Tehran and Isfahan, the sufficient data was collected and then categorized regarding the applications and the total amount of used pesticides in a year. The results demonstrated that there were 60 sorts of used pesticides in Iran. They included Organochlorine (10%), Organophosphorus (28.4%), Pyrethroids derivatives (10%), Carbamate derivatives (10%), and others (41.6%). The commonest pesticide used in a year was Organophosphorus and the least one was Organochlorine. The obtained data pointed out that the most common pesticide was Organophosphorus. Given that Organophosphorine compounds are poisonous in living creatures and cause short and long term side effects. It is recommended that responsible authorities provide the necessary information for the aimed groups in terms of the allowable using amount of pesticides, the protection strategies and the pesticides hazards on users.

关键词： Pesticide Organophosphorus Organochlorine Carbamate Pyrethroids Market Iran

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：