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Search Results: 1 - 10 of 2020 matches for " Anurag Yadav "
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Genetic Diversity of Pigeonpea (Cajanus cajan (L.) Millsp.) Cultivars and Its Wild Relatives Using Randomly Amplified Polymorphic DNA (RAPD) Markers  [PDF]
Kusum Yadav, Sanjay Kumar Yadav, Anurag Yadav, Veda Prakash Pandey, Upendra Nath Dwivedi
American Journal of Plant Sciences (AJPS) , 2012, DOI: 10.4236/ajps.2012.33038
Abstract: Genetic diversity among and between 16 cultivars of pigeonpea (Cajanus cajan (L) Millsp.) and its wild relatives (C. albicans and C. lineatus) analysed using RAPD. Twenty two random primers with an average of 71.2% polymorphism produced 151 polymorphic bands. Cluster analysis based on these 151 RAPD markers revealed relatively low level (0.434 - 0.714) of genetic diversity among cultivars and high level of diversity between cultivars and wild relatives. C. albicans and C. lineatus showed only 0.231 similarity with each other and C. albicans showed relatively higher similarity with C. cajan cultivars than that showed by C. lineatus. In dendrogram the 16 cultivars grouped into two distinct clusters comprising of seven and nine genotypes each while the wild species form out groups. Bootstrap analysis of the dendrogram was performed and resulted in significant bootstrap values. Principal components analysis (PCA) also revealed the similar results that of unweighted pair group method with arithmetic mean (UPGMA). The first, second and third PCs contributed 55.9%, 5.9%, and 5.6% of the variation, respectively, with cumulative variation of the first three PCs was 67.4%.
Comparative Analysis of Genetic Diversity among Cultivated Pigeonpea (Cajanus cajan (L) Millsp.) and Its Wild Relatives (C. albicans and C. lineatus) Using Randomly Amplified Polymorphic DNA (RAPD) and Inter Simple Sequence Repeat (ISSR) Fingerprinting  [PDF]
Kusum Yadav, Sanjay Kumar Yadav, Anurag Yadav, Veda Prakash Pandey, Upendra Nath Dwivedi
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.511181
Abstract:

Genetic relationships of 16 cultivars of pigeonpea (Cajanus cajan (L) Millsp.) and its two wild relatives (C. albicans and C. lineatus) from different parts of the India were analysed using 22 random amplified polymorphic DNAs (RAPDs) primers and 10 inter simple sequence repeats (ISSRs) primers. Twenty two RAPD primers yielded 151 polymorphic markers (71.2%) with an average of 6.8 polymorphic band/primer. Cluster analysis based on these 151 RAPD markers revealed relatively low level (0.434 - 0.714) of genetic diversity among cultivars and high level of diversity between cultivars and wild relatives. Ten ISSR primers produced 100 bands across 16 cultivars and its wild relatives out of which 93 (93%) were polymorphic with an average of 9.3 polymorphic band/primer. Cluster analysis based on these 93 ISSR markers also revealed relatively higher level (0.328 - 0.827) of genetic diversity among cultivars as compared to RAPD markers. The polymorphic markers obtained by both RAPD and ISSR primers were pooled and the genetic diversity analysis based on these 244 markers was analysed. Jaccard’s similarity coefficient obtained by pooled data revealed very narrow range (0.477 - 0.720) among cultivated and high range between cultivated and wild species C. albicans (0.240 - 0.331) and C. lineatus (0.163 - 0.193). In the UPGMA based dendrogram the 16 cultivars were grouped into three distinct clusters. Cluster I contained two genotypes, cluster II had six and cluster III had eight genotypes. Principal components analysis (PCA) also resulted in similar pattern as that of UPGMA based analysis. The first three PCs contributed 56.26%, 5.71% and 4.97% of variation, respectively, with cumulative variation of the first three PCs was 66.96%. Both the markers and the combined data revealed similar pattern with narrow diversity among cultivars and higher diversity between cultivars and wild one, but

Analysis of Simple Sequence Repeats Information from Floral Expressed Sequence Tags Resources of Papaya (Carica papaya L.)  [PDF]
Priyanka Priyanka, Dileep Kumar, Anurag Yadav, Kusum Yadav, U. N. Dwivedi
American Journal of Plant Sciences (AJPS) , 2017, DOI: 10.4236/ajps.2017.89155
Abstract: Papaya (Carica papaya L.) is one of the most economically, medicinally and nutritionally important tropical fruit crops. Expressed sequence tags (ESTs) derived simple sequence repeat (SSR) markers are more valuable as they are derived from conserved genic portion. Development of EST-SSRs markers through in silico approach is cheaper, less time consuming and labour-intensive. In this study, we aimed to mine SSRs and developed EST-SSR primers from papaya floral ESTs. A total of 75,846 papaya floral ESTs were downloaded from public database National Centre for Biotechnology Information (NCBI). A total of 26,039 floral unigenes (7961 contigs and 18,078 singletons) were generated after assembly of these ESTs. From these floral unigenes, 433,782 perfect SSRs, 204,968 compound SSRs and 6061 imperfect SSRs were mined, respectively.
A fresh loom for Multilevel feedback Queue scheduling Algorithm
Rakesh Kumar Yadav,Anurag Upadhyay
International Journal of Advances in Engineering Sciences , 2012,
Abstract: CPU scheduling is a vital phenomenon of operating system. At present, numerous CPU scheduling algorithms are existing like FCFS(First come first serve), SJF (shortest job first),SRTF( Shortest remaining time first) , Priority Scheduling,(RR)Round Robin scheduling , MLQ( multilevel queue). Efficiency and performance are not remaining satisfactory of these algorithms. MLFQ( Multilevel feedback queue) be one of most potential strategies, for CPU scheduling .It is further extension of multi-level queue scheduling algorithm while multilevel queue scheduling is results of combination of basic scheduling algorithms such as FCFS and RR scheduling algorithm. Therefore, research on these algorithms remains continuing till today. This paper, suggested a novel approach which will improve the performance of MLFQ (CPU) scheduling algorithm.
Compact Half U-Slot Loaded Shorted Rectangular Patch Antenna for Broadband Operation
Jamshed Aslam Ansari;Nagendra Prasad Yadav;Prabhakar Singh;Anurag Mishra
PIER M , 2009, DOI: 10.2528/PIERM09090102
Abstract: In this paper, analysis of half U-slot loaded patch antenna with shorting wall is presented. The parameters of the antenna significantly depend on slot and notch dimensions. Bandwidth of the proposed antenna is found to be 21.59%. The 3dB beamwidth of the antenna is found to be 90 at the central frequency of 2.6 GHz. The theoretical results are compared with IE3D simulated and experimental ones which are in good agreement.
A complicated true sliding hernia presenting as a spontaneous enteroscrotal fistula in an adult
Rajamanickam Saravana,Yadav Ashok,Rai Anurag,Singh Devendra
Journal of Emergencies, Trauma and Shock , 2010,
Abstract: A 26-year-old man presented with an irreducible right inguino-scrotal swelling and fecal discharge from the scrotum. Exploratory laparotomy and inguinal exploration revealed that the caecum, appendix, and terminal ileum had herniated into the scrotum and had perforated through the skin forming a fecal fistula. The herniated gangrenous bowel was resected and a stoma fashioned. Spontaneous entero-scrotal fistulae are very rare and eight pediatric cases have been mentioned in literature till date. We report the first case of true sliding hernia presenting as spontaneous entero-scrotal fistula in an adult.
Compact Shorted Microstrip Patch Antenna for Dual Band Operation
Anurag Mishra;Prabhakar Singh;Nagendra Prasad Yadav;Jamshed Aslam Ansari;Babau Ram Vishvakarma
PIER C , 2009, DOI: 10.2528/PIERC09071007
Abstract: In the present paper notch loaded shorted microstrip patch antenna has been analysed using cavity model. The proposed antenna shows dual band operation which depends on notch dimensions as well as shorting wall. The frequency ratio is found to be 1.5278 for the notch loaded rectangular patch, while in notch loaded shorted patch, the frequency ratio varies from 2.9764 to 2.725 for increasing value of notch width and it is almost invariant with notch depth. Further a slot loaded shorted patch antenna shows the dual frequency nature with the frequency ratio1.7. The theoretical results are compared with IE3D simulation as well as reported experimental results.
Carbon Nanotubes: An Emerging Drug Carrier for Targeting Cancer Cells
Vaibhav Rastogi,Pragya Yadav,Shiv Sankar Bhattacharya,Arun Kumar Mishra,Navneet Verma,Anurag Verma,Jayanta Kumar Pandit
Journal of Drug Delivery , 2014, DOI: 10.1155/2014/670815
Abstract: During recent years carbon nanotubes (CNTs) have been attracted by many researchers as a drug delivery carrier. CNTs are the third allotropic form of carbon-fullerenes which were rolled into cylindrical tubes. To be integrated into the biological systems, CNTs can be chemically modified or functionalised with therapeutically active molecules by forming stable covalent bonds or supramolecular assemblies based on noncovalent interactions. Owing to their high carrying capacity, biocompatibility, and specificity to cells, various cancer cells have been explored with CNTs for evaluation of pharmacokinetic parameters, cell viability, cytotoxicty, and drug delivery in tumor cells. This review attempts to highlight all aspects of CNTs which render them as an effective anticancer drug carrier and imaging agent. Also the potential application of CNT in targeting metastatic cancer cells by entrapping biomolecules and anticancer drugs has been covered in this review. 1. Introduction After the discovery of the third allotropic form of carbon fullerene in 1991, Sumio Iijima identified a new structural form of this allotrope, the cylindrical fullerene and named them as carbon nanotubes (CNTs) [1]. CNTs are graphene sheets rolled into a seamless cylinder that can be open ended or capped, having a high aspect ratio with diameters as small as 1nm and a length of several micrometers [2]. Depending on the number of sheets rolled into concentric cylinders, there are two broad categories of CNTs, namely, single-walled carbon nanotubes (SWCNTs) and multiwalled carbon nanotubes (MWCNTs) (Figure 1). SWCNTs are made up of single graphene layer wrapped into a hexagonal close-packed cylindrical structure whose diameter varies from 0.4 to 3.0?nm and length ranges from 20 to 1000?nm and are held together by Vander Waals forces, which makes them easily twistable and more pliable [3]. SWCNTs are produced by the electric arc [4], laser ablation [5], chemical vapor deposition (CVD) [6], and gas-phase catalytic processes (HiPco or high-pressure CO conversion) [7]. Figure 1: Carbon nanotube: (a) single walled carbon nanotube and (b) multiwalled carbon nanotube. MWCNTs consist of several coaxial cylinders, each made of a single graphene sheet surrounding a hollow core. The outer diameter of MWCNTs ranges from 2 to 100?nm, while the inner diameter is in the range of 1–3?nm, and their length is 1 to several m [8]. Electric arc [9] and chemical vapor deposition (CVD) [10, 11] are the main techniques for their production. Owing to the sp2 hybridization in MWCNTs, a delocalized electron cloud
Detection of Ventricular Fibrillation Using Random Forest Classifier  [PDF]
Anurag Verma, Xiaodai Dong
Journal of Biomedical Science and Engineering (JBiSE) , 2016, DOI: 10.4236/jbise.2016.95019
Abstract: Early warning and detection of ventricular fibrillation is crucial to the successful treatment of this life-threatening condition. In this paper, a ventricular fibrillation classification algorithm using a machine learning method, random forest, is proposed. A total of 17 previously defined ECG feature metrics were extracted from fixed length segments of the echocardiogram (ECG). Three annotated public domain ECG databases (Creighton University Ventricular Tachycardia database, MIT-BIH Arrhythmia Database and MIT-BIH Malignant Ventricular Arrhythmia Database) were used for evaluation of the proposed method. Window sizes 3 s, 5 s and 8 s for overlapping and non-overlapping segmentation methodologies were tested. An accuracy (Acc) of 97.17%, sensitivity (Se) of 95.17% and specificity (Sp) of 97.32% were obtained with 8 s window size for overlapping segments. The results were benchmarked against recent reported results and were found to outper-form them with lower complexity.
Application of Markov Process to Improve Production of Power Plant
Anurag Baghela
International Journal of Engineering and Advanced Technology , 2012,
Abstract: Due to the fast paced growth of world economy the energy demand is increasing very rapidly. To maintain the quality of power, economical production and long run performance of the plants should be kept failure free (as far as possible). So, these industries invest much more for up-gradation, high level of automation and use sophisticated machineries to get the desire level of results. But, still these industries are lagging in dependable and reliable supplies of electricity. Today most of the power plants are operating with low efficiency. In most of the cases it is less than 30%. There are a few plants in which efficiency is more than 60%. To prevent such mishaps a detailed system behavioral analysis along with maintenance planning is important. For which a mathematical model is necessary which exhibit the system upstate in quantitative form and analyze system performance in actual operating conditions. It is also helpful to process design department for modification in design and to maintenance department to in monitoring the system performance and planning in advance to keep system failure free for longer duration. The work presented here is mainly concerned with reliability centered maintenance of thermal power plant. The study is conducted in a Thermal Power Plant situated in Rajasthan.
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