检索结果-南通市图书馆

Acclimatization of microalgae Arthrospira platensis for treatment of heavy metals in Yamuna River

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Water Science and Engineering 2020年第3期13卷 214-222页

作者： nilesh kumar Shriya Hans Ritu Verma Aradhana Srivastava University School of Chemical Technology Guru Gobind Singh Indraprastha UniversityNew Delhi 110078India

Bioaccumulation and biosorption in microalgae are effective approaches for the removal of heavy metals(HMs)from river *** objective of this study was to investigate the potential for use of acclimatized microalgae in the removal of HMs from the Yamuna River water as an acclimatizing *** active culture of Arthrospira platensis(***)was acclimatized to HMs up to a concentration of 100 mg/*** was gradually exposed to increasing concentrations of HMs in five subsequent batches with a step increase of 20 mg/L to acclimatize live cells in the simulated Yamuna River *** presence of high levels of HMs in the Yamuna River water caused growth *** empirical growth inhibition model was developed,and it predicted high threshold concentrations of HMs(210.7e424.5 mg/L),producing a positive specific growth rate of *** also showed high average removal efficiencies of HMs,including 74.0%for Cu,77.0%for Cd,50.5%for Ni,76.0%for Cr,76.5%for Pb,and 63.5%for Co,from HMs-enriched Yamuna River *** findings demonstrated that the maximum specific removal amounts of Cu,Cd,Ni,Cr,Pb,and Co were 54.0,58.0,39.0,62.8,58.9,and 45.3 mg/g,*** maximum yields of the value-added products chlorophyll and phycocyanin were 2.5 mg/g(in a batch of 40 mg/L for Cd)and 1054 mg/g(in a batch of 20 mg/L for Cu),***,acclimatized *** was proven to be a potential microalga not only for sequestration of HMs but also for production of valuable pigments.

关键词： Yamuna River A.platensis Heavy metals Acclimatization Biosorption Pigments

Impact of geomorphometric parameters on the occurrence and distribution of landslides in Yamuna River Basin,North-Western Himalaya,India

在线全文

学校读者我要写书评

暂无评论

Journal of Mountain Science 2022年第8期19卷 2374-2396页

作者： Ravi SHANKAR Gyan Prakash SATYAM Prakash kumar SINGH nilesh kumar RAI Ranjit kumar PASWAN REED CSIR-Central Institute of Mining and Fuel ResearchDhanbad 826001India Department of Applied Geology Indian Institute of Technology(ISM)Dhanbad 826004India Department of Earth and Planetary Sciences University of AllahabadPrayagraj 211002Uttar PradeshIndia

The majority of landslides in the Indian Himalayas are triggered by rainfall and *** geology and geomorphology also play an important role and constitute the major predisposing factor controlling ***,active tectonics modify the landscape,impacting the occurrence and distribution of *** objective of this study is to investigate the role of some of the major predisposing factors to assess landslide patterns in the Yamuna River Basin as it is prone to recurrent landslide *** approach mainly deals with the application of geographical information system-based statistical analysis and quantifying frequency-area distribution of rainfalltriggered landslides for the years 2015 to *** analysis shows that the frequency of landslides is highest in the slope range 40°-70°and the mean landslide size is higher in the slope range 0°-20°and 30°-40°,remaining constant on further increase in slope *** study shows that some critical slope range controls both the frequency and size of *** were mostly restricted to south facing *** 91%of the landslide occur in the drainage density range of 1.2 to 2.1 km/km^(2) while landslides show very low occurrence in either lower(2.1)drainage *** distribution analysis of landslides depicts a distinct cutoff point but an indistinct rollover ***-sampling of small landslides can be a reasonable cause for *** other studies,the present data fits very well for medium and large landslides following an inverse power law with a scaling exponent *** 80% of landslides are smaller than the cutoff size and 20% larger than this *** geology and tectonics of Lesser Himalayas and Sivaliks offer favorable conditions for frequent *** such as Dehradun,Uttarkashi,Sirmaur,Shimla,and Solan are very prone to landslide activity owing to the presence of poorly consolidated sandstone,conglomerate,quartzites,phylli

关键词： Himalaya Geomorphometry Landslide Yamuna River Basin

Natural and artificial small RNAs:a promising avenue of nucleic acid therapeutics for cancer

在线全文

学校读者我要写书评

暂无评论

Cancer Biology & Medicine 2017年第3期14卷 242-253页

作者： Sunny Yadav Mamta Shekhawat Devashree Jahagirdar nilesh kumar Sharma Cancer and Translational Research Lab Dr.D.Y Patil Biotechnology&Bioinformatics InstituteDr.D.Y.Patil VidyapeethPune 411033MaharashtraIndia

Since the failure of traditional therapy, gene therapy using functional DNA sequence and small RNA/DNA molecules(oligonucleotide) has become a promising avenue for cancer treatment. The discovery of RNA molecules has impelled researchers to investigate small regulatory RNA from various natural and artificial sources and determine a cogent target for controlling tumor progression. Small regulatory RNAs are used for therapeutic silencing of oncogenes and aberrant DNA repair response *** their advantages, therapies based on small RNAs exhibit limitations in terms of stability of therapeutic drugs, precisionbased delivery in tissues, precision-based intercellular and intracellular targeting, and tumor heterogeneity-based responses. In this study, we summarize the potential and drawbacks of small RNAs in nucleic acid therapeutics for cancer.

关键词： Cancer drug targeting gene intracellular therapeutics tumor heterogeneity

Harmful algal blooms in fresh and marine water systems： The role of toxin producing phytoplankton

在线全文

学校读者我要写书评

暂无评论

International Journal of Biomathematics 2016年第3期9卷 191-210页

作者： nilesh kumar Thakur S. K. Tiwari Ranjit kumar Upadhyay Department of MathematicsNational Institute of Technology Raipur 492010 Department of Applied MathematicsIndian School of Mines Dhanbad 826004

In this paper, we have investigated a model with three interacting species： non-toxic phy- toplankton, toxic phytoplankton and zooplankton with Holling type II and III functional responses over the space and time. The role of toxin producing phytoplankton （TPP） has been studied. We have presented the theoretical analysis of pattern formation in spatially distributed population with local diffusion. The paper highlights the hetero- geneity of HABs over space and time. The choice of parameter values and the functional response is important to study the effect of TPP, also it would depend more on the non- linearity of the system. With the help of numerical simulations, we have observed the spatial and spatiotemporal patterns for plankton system. This study demonstrates that TPP plays an important role in controlling the dynamics. We have observed that prey＇s anti-predator efforts promote predator switching. It has been found that high predation of TPP helps for the coexistence of toxic, non-toxic phytoplankton and zooplankton population.

关键词： Plankton harmful algal bloom toxin producing phytoplankton spatiotem-poral pattern.

GRADE: Deep learning and garlic routing-based secure data sharing framework for IIoT beyond 5G

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Digital Communications and Networks 2023年第2期9卷 422-435页

作者： nilesh kumar Jadav Riya Kakkar Harsh Mankodiya Rajesh Gupta Sudeep Tanwar Smita Agrawal Ravi Sharma Department of Computer Science and Engineering Institute of TechnologyNirma UniversityAhmedabadGujaratIndia Centre for Inter-Disciplinary Research and Innovation University of Petroleum and Energy StudiesP.O.Bidholi Via-Prem NagarDehradunIndia

The rise of automation with Machine-Type Communication(MTC)holds great potential in developing Industrial Internet of Things(IIoT)-based applications such as smart cities,Intelligent Transportation Systems(ITS),supply chains,and smart industries without any human ***,MTC has to cope with significant security challenges due to heterogeneous data,public network connectivity,and inadequate security *** overcome the aforementioned issues,we have proposed a blockchain and garlic-routing-based secure data exchange framework,i.e.,GRADE,which alleviates the security constraints and maintains the stable connection in ***,the Long-Short-Term Memory(LSTM)-based Nadam optimizer efficiently predicts the class label,i.e.,malicious and non-malicious,and forwards the non-malicious data requests of MTC to the Garlic Routing(GR)*** GR network assigns a unique ElGamal encrypted session tag to each machine partaking in ***,an Advanced Encryption Standard(AES)is applied to encrypt the MTC data ***,the InterPlanetary File System(IPFS)-based blockchain is employed to store the machine's session tags,which increases the scalability of the proposed GRADE ***,the proposed framework has utilized the indispensable benefits of the 6G network to enhance the network performance of ***,the proposed GRADE framework is evaluated against different performance metrics such as scalability,packet loss,accuracy,and compromised rate of the MTC data *** results show that the GRADE framework outperforms the baseline methods in terms of accuracy,i.e.,98.9%,compromised rate,i.e.,18.5%,scalability,i.e.,47.2%,and packet loss ratio,i.e.,24.3%.

关键词： Garlic routing Blockchain I2P LSTM Artificial intelligence Onion routing

Gastric conduit perforation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2014年第8期2卷 398-401页

作者： nilesh Patil Arvind Kaushal Amit Jain Sundeep Singh Saluja Pramod kumar Mishra Department of Gastrointestinal Surgery Academic BlockGB Pant Hospital and Maulana Azad Medical CollegeNew Delhi 110002India

As patients with carcinoma of the esophagus live longer, complications associated with the use of a gastric conduit are increasing. Ulcers form in the gastric conduit in 6.6% to 19.4% of patients. There are a few reports of perforation of a gastric conduit in the English literature. Almost all of these were associated with serious complications. We report a patient who developed a tension pneumothorax consequent to spontaneous perforation of an ulcer in the gastric conduit 7 years after the index surgery in a patient with carcinoma of the gastroesophageal junction. He responded well to conservative management. Complications related to a gastric conduit can be because of multiple factors. Periodic endoscopic surveillance of gastric conduits should be considered as these are at a higher risk of ulcer formation than a normal stomach. Long term treatment with proton pump inhibitors may decrease complications. There are no guidelines for the treatment of a perforated gastric conduit ulcer and the management should be individualized.

关键词： Gastric conduit Ulcer formation Perforation Carcinoma of the esophagus Proton pump inhibitors

Paraparesis in Coarctation of Aorta： Diagnosis in Disguise

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Medical Journal 2015年第23期128卷 3262-3263页

作者： Anup Sinoh Annesh Bhattacharya nilesh kumar Department of Medicine Institute of Medical Sciences Banaras Hindu University Varanasi Uttar Pradesh India

To the Editor： A 55-year-old woman presented with sudden onset symmetric weakness of both lower limbs along with truncal weakness and urinary retention for 7 days. However, she denied any history of pain trauma, loss of consciousness, or any evidence of upper limb weakness, breathlessness, or cranial nerve involvement. According to history, a provisional diagnosis of acute transverse myelitis was made, for which she was being treated before coming to the Institute of Medical Sciences, Banaras Hindu University.

关键词： consciousness evidence truncal

Deep Learning-Based Robust Morphed Face Authentication Framework for Online Systems

在线全文

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2023年第10期77卷 1123-1142页

作者： Harsh Mankodiya Priyal Palkhiwala Rajesh Gupta nilesh kumar Jadav Sudeep Tanwar Osama Alfarraj Amr Tolba Maria Simona Raboaca Verdes Marina Department of Computer Science and Engineering Institute of TechnologyNirma UniversityAhmedabad382481India Computer Science Department Community CollegeKing Saud UniversityRiyadh11437Saudi Arabia Doctoral School University Politehnica of BucharestBucharest060042Romania Department of Hydrogen and Fuel Cell National Research and Development Institute for Cryogenics and Isotopic TechnologiesRamnicu Valcea240050Romania Department of Building Services Faculty of Civil Engineering and Building ServicesTechnical University of Gheorghe AsachiIasi700050Romania

The amalgamation of artificial intelligence(AI)with various areas has been in the picture for the past few *** has enhanced the functioning of several services,such as accomplishing better budgets,automating multiple tasks,and data-driven *** hassle-free polling has been one of ***,at the onset of the coronavirus in 2020,almost all worldly affairs occurred online,and many sectors switched to digital *** allows attackers to find security loopholes in digital systems and exploit them for their lucrative *** paper proposes a three-layered deep learning(DL)-based authentication framework to develop a secure online polling *** provides a novel way to overcome security breaches during the face identity(ID)recognition and verification process for online polling *** verification is done by training a pixel-2-pixel Pix2pix generative adversarial network(GAN)for face image reconstruction to remove facial objects present(if any).Furthermore,image-to-image matching is done by implementing the Siamese network and comparing the result of various metrics executed on feature embeddings to obtain the outcome,thus checking the electorate credentials.

关键词： Artificial intelligence discriminator generator Pix2pix GANs Kullback-Leibler(KL)-divergence online voting system Siamese network

An unusual presentation of typhoid fever causing aseptic meningitis, acute pancreatitis, acute glomerulonephritis, acute hepatitis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Medical Journal 2013年第2期126卷 397-398页

作者： Vinay kumar Meena nilesh kumar Rajani Nawal Department of General Medicine Institute of Medical Sciences Banaras Hindu University Varanasi Uttar Pradesh India Department of Obstetrics and Gynecology Sawai Man Singh(SMS)Medical College Jaipur Rajasthan India

To the editor： Typhoid lever is a very common infective cnsease in Asian and underdeveloped countries.1,2 Typhoid fever in itsfirst week of illness manifest with fever, headache, abdominal pain, gastrointestinal symptom like anorexia, nausea, vomiting, constipation; with or without specific signs like relative bradycardia, hepatomegaly, splenomegaly and abdominal tenderness developing in second week of illness. Complications like acute abdomen, intestinal perforation, pneumonia, psychosis, ataxia, altered sensorium, pancreatitis, hepatitis and nephritis are likely to develop in third to fourth week of illness.3,4 Initial presentation with aseptic meningitis, pancreatitis, hepatitis, glomerulonephritis and thrombocytopenia is a very rare manifestations of typhoid fever.5

关键词： An unusual presentation typhoid fever causing aseptic meningitis acute pancreatitis