检索结果-南通市图书馆

Heavy metal pollution of river water and eco-friendly remediation using potent microalgal species

Water Science and Engineering 2024年第1期17卷 41-50页

作者： Amudham Radha Amal raj Prabhakaran Mylsamy V.Sivasankar B.Sathish Kumar Kiyoshi Omine t.G.Sunitha Phycological Research Laboratory Research Department of BotanyPachaiyappa's College(Affiliated to University of Madras)Chennai 600030India Research Department of Chemistry Pachaiyappa's College(Affiliated to University of Madras)Chennai 600030India Department of Botany Sri Vidya Mandir Arts&Science College(Autonomous)KatteriUthangarai 636902India Department of Civil Engineering School of Engineering.Nagasaki UniversityNagasaki-Daigaku1-14 Bunkyo-machiNagasaki 8528521Japan

Pollution of rivers is mainly caused by anthropogenic activities such as discharge of effluent from industrial facilities,maintenance of sewage/effluent treatment plants,and dumping of solid waste on river *** study dealt with the pollution issues of the Cooum River in the well-known city of Chennai in South *** samples from 27 locations were collected and analyzed for 12 elements,including Ba,B,and Al,as well as heavy metals such as Pb,Cr,Mn,Fe,Co,Ni,Cu,Zn,and *** samples showed levels of these elements that exceeded World Health Organization *** correlation analysis revealed the inter-dependency among elements,and the contribution of each element based on factor loadings showed its percentage contribution compared to *** samples from six significant locations were chosen for remediation with three algae:Chlorella vulgaris,Scenedesmus dimorphus,and Phormedium *** uptake of pollutants led to the continuous growth of algae during the incubation period of 15 d,effectively removing heavy metals from the river *** increasing levels of algal counts and the chlorophyll a content confirmed the algal growth during the incubation period,followed by a declining stage after the incubation *** scanning electron microscopic images of algae before and after the remediation showed no remarkable modification of morphological *** study showed that the uptake of heavy metals using algae is an effective water pollution remediation measure,making the process practicable in the field on a large scale in the near future.

关键词： Heavy metal Cooum river Phycoremediation Microalgae Factor analysis

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

Cerebral venous sinus thrombosis:changing trends in the incidence,age and gender(findings from the CMC Vellore CVt registry)

引用

Stroke & Vascular Neurology 2024年第3期9卷 252-257页

作者： Angel Miraclin t John Davis Prasad George Abraham Ninan Mahasampath Gowri Deepti Bal Atif Iqbal Ahmed Shaikh Rohit N Benjamin Appaswamy thirumal Prabhakar ajith Sivadasan Vivek Mathew Sanjith Aaron Department of Neurological Sciences Christian Medical CollegeVelloreTamil NaduIndia Department of Biostatistics Christian Medical CollegeVelloreTamil NaduIndia

Background Multiple cerebral venous sinus thrombosis(CVt)registries from various geographical regions indicate that female gender,the use of contraceptive pills,pregnancy and puerperium are important risk *** this study,we report the changes in the epidemiology of patients with CVt managed over the past 26 *** the CMC Vellore CVt registry is a prospectively maintained database at the Christian Medical College,Vellore since January *** software was used to analyse the data and assess the changes in the incidence,age and gender distribution over the previous 26 *** Among 1701 patients treated during the study period,908(53%)were women and 793(47%)were *** mean incidence of CVt was 49 per 100000 admissions before 2010,which increased to 96 per 100000 after *** gender had a higher odds of developing CVt OR–2.07(CI 1.68 to 2.55,pthis could be attributed to the declining incidence of postpartum CVt after 2010 compared with the decade before 2010(50%vs 20%).the mean age at presentation had increased from 24.5 to 33.2 years in the last *** there was a clear change in the gender pattern from being a condition with female preponderance,to one where equal or more men are being *** incidence of postpartum CVt cases could be the driving *** increase in the overall incidence of CVt cases was noted,probably due to a higher index of clinical suspicion and better diagnostic imaging modalities.

关键词： CVt driving maintained

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

AVirtual Cloud Storage Architecture for Enhanced Data Security

引用

Computer Systems Science & Engineering 2023年第2期44卷 1735-1747页

作者： M.Antony Joans Kumar C.Christopher Columbus E.Ben George t.ajith bosc. raj Department of Information technology St.Xavier’s Catholic College of EngineeringNagercoil629003Tamil NaduIndia Department of Computer Science Engineering PSN College of Engineering and TechnologyTirunelveli627152India Department of Computer Science Engineering University of Technology and Applied SciencesMuscat112Oman Department of Electronics and Communications Engineering PSN College of Engineering and TechnologyTirunelveli627152India

the sensitive data stored in the public cloud by privileged users,such as corporate companies and government agencies are highly vulnerable in the hands of cloud providers and *** proposed Virtual Cloud Storage Archi-tecture is primarily concerned with data integrity and conﬁdentiality,as well as *** provide conﬁdentiality and availability,theﬁle to be stored in cloud storage should be encrypted using an auto-generated key and then encoded into distinct *** the encoded chunks ensured theﬁle integrity,and a newly proposed Circular Shift Chunk Allocation technique was used to determine the order of chunk ***ﬁle could be retrieved by performing the opera-tions in *** the regenerating code,the model could regenerate the missing and corrupted chunks from the *** proposed architecture adds an extra layer of security while maintaining a reasonable response time and sto-rage *** results analysis show that the proposed model has been tested with storage space and response time for storage and *** VCSA model consumes 1.5x(150%)storage *** was found that total storage required for the VCSA model is very low when compared with 2x Replication and completely satisﬁes the CIA *** response time VCSA model was tested with different sizedﬁles starting from 2 to 16 *** response time for storing and retrieving a 2 MBﬁle is 4.96 and 3.77 s respectively,and for a 16 MBﬁle,the response times are 11.06 s for storage and 5.6 s for retrieval.

关键词： Erasure code regenerating code cryptography virtual cloud storage architecture circular shift chunk allocation algorithm

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

Enhancing prognostic accuracy in predicting rectal neuroendocrine neoplasms

引用

World Journal of Gastroenterology 2024年第37期30卷 4087-4089页

作者： Renin Peter AA raj Abdulqadir J Nashwan Department of Medicine Aston Medical SchoolBirmingham B47ETUnited Kingdom Department of Nursing&Midwifery Research Hamad Medical CorporationDoha 3050Qatar

the recently published retrospective study introduces the GAtIS score,a new predictive model for rectal neuroendocrine *** analyzing data from a large Chinese multicenter cohort,the study shows that the GAtIS score,incor-porating tumor grade,t stage,tumor size,age,and prognostic nutritional index,demonstrates superior predictive power for overall survival and progression-free survival compared to traditional World Health Organization grade and tumor,nodes and metastases staging *** editorial aims to discuss the impor-tance of the GAtIS score,its potential impact on clinical practice,and the strengths and limitations of the ***,it explores the significance,methodology,and clinical implications of these findings.

关键词： Rectal neuroendocrine neoplasm Nomogram Random forest Prognosis Overall survival Progression-free survival

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

the function of doping nitrogen on removing fluoride with decomposing La-MOF-NH_2:Density functional theory calculation and experiments

引用

Journal of Environmental Sciences 2024年第1期135卷 118-129页

作者： Hongguo Zhang KuilinWan Jia Yan Qian Li Yufang Guo Lei Huang Samuel raj Babu Arulmani Jian Luo School of Environmental Science and Engineering Guangzhou UniversityGuangzhou 510006China Guangzhou University-Linkoping University Research Center on Urban Sustainable Development Guangzhou UniversityGuangzhou 510006China School of Civil and Environmental Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

Fluoride is an important pollutant in wastewater,and adsorption is an effective way to remove *** nitrogen plays an important role in adsorbent materials,computational models were developed to understand the changes in work function resulting from nitrogen ***-N-C-800℃,was prepared by pyrolyzing La-MOF-NH_(2)to verify the influence on the performance of removing fluoride by *** and electrochemical performance tests were performed to characterize La-N-C-800℃.Adsorption kinetics,adsorption thermodynamics,initial concentrations,pH,and ions competition were investigated using La-N-C-800℃for fluoride *** addition,density functional theory was applied to evaluate the function of *** nitrogen atoms were added,the density of states,partial density of states,populations,and different orbits of charge were calculated to discover deep *** strengthened the carbon structure and La_(2)O_(3)structure to remove *** addition,nitrogen can also act as an adsorption site in the carbon *** results provide design ideas for improving the performance of adsorbent materials by doping elements.

关键词： Capacitive deionization Fluoride La-MOFs Doping nitrogen

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

Condition indices for rigid pavements: A comparative analysis of state DOts using Michigan PMS data

引用

Journal of Road Engineering 2024年第3期4卷 348-360页

作者： Rahul raj Singh Mumtahin Hasnat Muhammed Emin Kutay Syed Waqar Haider James Bryce Bora Cetin Department of Civil and Environmental Engineering Michigan State UniversityEast LansingMI 48824USA Wadsworth Department of Civil and Environmental Engineering West Virginia UniversityMorgantownWV 26506USA

Pavement infrastructure is vital in providing services and links between various sectors of society. therefore, thepreservation and maintenance of these roads are critical to attaining a pavement network in good conditionthroughout its service life. Various performance indicators like the international roughness index (IRI), pavementcondition index (PCI), and present serviceability rating (PSR) have been used by the state department of transportation (DOt) and highway agencies for evaluating pavement surface conditions and planning future maintenance strategies. Limited data availability, multiple distresses depending on region, lack of correlation of thesecondition indices to maintenance strategies, and data collection limitations pose a challenge for applying theseindices to local conditions. this paper compares condition indices of different states for rigid pavements. Further,using a specific condition index for local conditions is also highlighted. For this purpose, five states and theircorresponding condition indices were evaluated and compared to the Michigan DOt distress index (DI). thesestates include Virginia, Minnesota, North Dakota, Louisiana, and Oregon. the corresponding distresses of eachcondition index were converted to make them compatible with the MDOt DI. this study used the MDOt'spavement management system (PMS) database to evaluate each condition index for 433 rigid pavement *** distress index was plotted against MDOt DI and compared using a paired t-test. Results show that thecondition indices of Virginia and Minnesota are comparable to DI in terms of the Spearman correlation value. thet-test results show that except for Virgina, condition indices from other states statistically differ from ***, one can't use those directly for local conditions in Michigan. this paper presents the evaluation anddata requirements for each condition index and its impact on selecting a maintenance treatment.

关键词： Rigid pavement Pavement management Condition index Distress index

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

Does topical vancomycin prevent fracture-related infections in closed fractures undergoing open reduction and internal fixation?A randomised controlled trial

引用

Chinese Journal of traumatology 2024年第2期27卷 71-76页

作者： Mohit Gandhi Gopisankar Balaji Jagdish Menon Ruben raj thomas Department of Orthopaedics Jawaharlal Institute of Postgraduate Medical Education and ResearchPondicherryIndia Department of Preventive and Social Medicine Jawaharlal Institute of Postgraduate Medical Education and ResearchPondicherryIndia

Purpose:the role of topical vancomycin in fracture-related infection(FRI)is *** few studies have reported their efficacy in open and high-risk extremity *** study aimed to assess topical vancomycin's role in reducing FRI in closed fractures undergoing open surgical intervention with an ***:this prospective randomized cohort study was carried out between February 2021 to January *** with isolated closed fractures,who were planned for open reduction and internal fixation within 2 weeks from the time of injury were included for this *** data collected included age,gender,socioeconomic status,mechanism of injury,diagnosis,tscherne classification,and time interval to take up for *** were randomized into the intervention and control groups using the block randomization *** control group received only systemic antibiotic prophylaxis,whereas the intervention group received topical application of vancomycin powder in the surgical wound alongside systemic antibiotic *** primary outcome measure was the incidence of FRI among these *** and radiological findings and culture reports(in cases with infection)were recorded during the post-operative period and at 6 weeks of *** relevant statistical calculations were done using StAtA statistical/data analysis-parallel edition version 16.0(StataCorp LLC).the quantitative variables like age and duration of the surgery were assessed for normalcy by Shapiro-Wilk W *** independent samples t-test with equal variances was applied to the age ***'s exact test was used for the analysis of the primary outcome measure(presence of FRI following surgery),and"Risk of FRI"and"Risk difference"between the 2 groups was *** strength of the association between qualitative variables was assessed using the Fisher's exact and Chi-square tests,***:there were 88 patients included in this *** statistical si

关键词： Infections Antibiotics Vancomycin Fractures

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

Natural Products and Antiviral Resistance

引用

Advances in Microbiology 2024年第7期14卷 366-388页

作者： Erute Magdalene Adongbede Janak raj Khatiwada Rishipal Rastrapal Bansode Leonard Lamont Williams Department of Botany University of Lagos Lagos Nigeria Center for Excellence in Post-Harvest technologies North Carolina A & T State University Kannapolis North Carolina USA

Viral diseases are minacious with the potential for causing pandemics and treatment is complicated because of their inherent ability to mutate and become resistant to drugs. Antiviral drug resistance is a persistent problem that needs continuous attention by scientists, medical professionals, and government agencies. to solve the problem, an in-depth understanding of the intricate interplay between causes of antiviral drug resistance and potential new drugs specifically natural products is imperative in the interest and safety of public health. this review delves into natural product as reservoir for antiviral agents with the peculiar potentials for addressing the complexities associated with multi-drug resistant and emerging viral strains. An evaluation of the mechanisms underlying antiviral drug activity, antiviral drug resistance is addressed, with emphasis on production of broad-spectrum antiviral agents from natural sources. there is a need for continued natural product-based research, identification of new species and novel compounds.

关键词： Drug Resistance Resistance Mechanisms Phytochemicals Broad-Spectrum Drugs Antiviral Agents

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

Hepatocellular carcinoma national burden across different geographical regions in the United States between 2001 and 2020

引用

World Journal of Methodology 2024年第4期14卷 110-120页

作者： Yazan Abboud raj Malhotra Muhammad Hassaan Arif Maan Anna Mathew Ibrahim Abboud Chun-Wei Pan Saqr Alsakarneh Fouad Jaber Islam Mohamed David Kim Nikolaos t Pyrsopoulos Department of Internal Medicine Rutgers New Jersey Medical SchoolNewarkNJ 07103United States University of California Riverside School of Medicine RiversideCA 92521United States Department of Internal Medicine John H Stroger Hospital of Cook CountyChicagoIL 60612United States Department of Internal Medicine University of Missouri-Kansas CityKansasMO 64108United States Division of Gastroenterology and Hepatology Rutgers New Jersey Medical SchoolNewarkNJ 07101United States

BACKGROUND While prior data showed an increasing incidence of hepatocellular carcinoma(HCC)in the United States,there are limited comprehensive and comparative data on the geographical variations of HCC trends in different demographicspecific *** to evaluate sex and age-specific incidence rates and time trends in different geographical regions in the United *** Age-adjusted HCC incidence rates were collected from the United States Cancer Statistics(USCS)database which covers approximately 98%of the population in the United *** rates were stratified by sex,age,and geographical *** percentage change(APC)and average APC(AAPC)were estimated using Joinpoint Regression.A pairwise comparison was conducted between sex-specific *** there were 467344 patients diagnosed with HCC in the United States in the USCS database between 2001 and *** rates and trends varied by geographical *** looking at the West region(115336 patients),incidence rates of HCC were overall increasing and also increasing in older ***,when evaluating younger adults,HCC incidence rates decreased in men but not in women with a sex-specific absolute AAPC-difference of 2.15(P=0.005).When evaluating the Midwest region(84612 patients),similar results were *** incidence rates were increasing in the overall population and in older adults as well,they were decreasing in younger men but not in women with a sex-specific absolute AAPC-difference of 1.61(Pthe Northeast region(87259 patients),the analysis showed similar results with decreasing HCC incidence rates in younger men but not counterpart women(Sex-specific AAPC-difference=3.26,Ptly,when evaluating the south(180137 patients),the results were also decreasing in younger men but not in women(Sex-specific AAPC-difference=2.55,Ptionwide analysis covering around 98%of the United States population shows an increasing incidence of HCC across all

关键词： Hepatocellular carcinoma Incidence Epidemiology Health disparity Geography

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

A survey on future research about electron beam welding for aerospace applications

引用

China Welding 2018年第1期27卷 60-64页

作者： ajith raj rajendran Dev Anand Manoharan Department of Aeronautical Engineering Noorul Islam Centre for Higher EducationKanyakumari 629180India Noorul Islam Centre for Higher Education Kanyakumari 629180India

Electron beam welding plays an important role in the aerospace industry where components like sensors,gears,actuators and air frames used in aircraft and rocket engines were welded using this *** is normally performed in a vacuum to avoid the scatter of electron due to the presence of gas molecules in the atmosphere and hence electron beam welding process provides the greater *** still joining of dissimilar metals is *** paper represents review of process,generation and distribution of heat source various input parameters,materials,microstructure,mechanical strength and the possibilities of joining dissimilar metals using electron beam welding.

关键词： dissimilar metal joints electron beam welding mechanical strength microstructure

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

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

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

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：