197 research outputs found
Cooperative multicatalytic Prins cyclization for the synthesis of octahydrospiro-β-carboline, tetrahydropyranoquinoline and spirotetrahydropyrano morpholine derivatives
Recent Trends in Digital Library Publications: A Scientometric Analysis
The study seeks to illustrate the most current trends in digital library research via the use of scientometrics. The study of scientific networks is important in many scientific domains. A social network with many nodes and connections serves as the foundation for scientific network research. Nodes include authors, publications, and journals, while linkages include citations, cocitations, and coauthorship. Data was collected from the Scopus abstracting and citation database for the period of ten years from 2012 to 2021. The most relevant 1957 documents were chosen from the collection, and selected documents were analyzed using Biblioshny and VOSviewer. The research showed that digital library productivity is rising annually, the United States of America dominates the production of scholarly production on digital libraries, and research is increasingly focused on digital resource and digital collection development. However, artificial intelligence, deep learning, machine learning, big data, and other related areas of study have emerged as the most recent research trends in digital library research. The outcomes of this study will aid digital library research by providing up-to-date and reliable research information
Information Seeking Behaviour of Newspaper Journalists of Karnataka State: A Study
Journalists search, access, and make use of a variety of information sources, both in print and electronic media. Journalists have been increasingly reliant on internet tools in recent years. An attempt has been made through the study to identify the information-seeking behaviour of journalist working in 39 newspapers at the national, state, as well as regional levels. A total of 610 respondents have responded to the questionnaire. The data shows that data indicates that approximately 60% of the respondents are below 35 years. The study witnessed that more than 30% of respondents opined that the information required about all areas is of utmost significance whereas more than 50% of respondents felt that the information is required at the level of moderate significance related to all areas. The study also recommends increasing the number of staff for the maintenance of the newspaper libraries. The study also suggested improving the physical facilities in newspaper libraries as well as staff training is required
Distribution pattern of freshwater cyanobacteria in Kaiga region of Western Ghats of Karnataka
This study deals with the identification of 59 cyanobacterial species belonging to 27 genera from different freshwater habitats of Kaiga in Uttara Kannada district of Karnataka during the period from June 2009 to May 2011. Samplings were made during pre-monsoon; monsoon and post-monsoon sampling have been carried out for the duration of 2 years. The study deals with the occurrence of cyanobacterial species in five different aquatic habitats in Kaiga region, with respect to a change in the physico-chemical properties of water. The cyanobacterial diversity is maximum in monsoon season compared to post-monsoon; it was least during pre-monsoon. Among cyanobacteria non-heterocystous filamentous forms were dominant followed by unicellular forms, whereas heterocystous forms were least in number. It was also found that the physicho-chemical properties of water have the influence on the richness of cyanobacterial community. This study indicates the maximum occurrence and abundance of Chroococaceae (23.73%) and Phormidaceae (18.64%) members in all the sites, whereas Stigonemataceae (1.7%) shows very less occurrence. Among the cyanobacteria identified non-heterocystous filamentous forms were dominant followed by unicellular forms; whereas heterocystous forms were least in number.Â
Settlement Analysis of Reinforced Granular Beds near Bridge Abutments
An approach slab is constructed to provide a smooth transition between the bridge deck and the existing roadway pavement. The differential settlement between the bridge deck and the approach slab leads to the formation of a "Bump" at the bridge. This is mainly due to difference support systems for the bridge deck and the slab. A detailed literature review had been done on the causes and the mitigation techniques available
Effect of Dilatancy Angle on Bearing Capacity
In Mohr-Coulomb failure criterion, the angle of shearing resistance of soil is assumed to be constant along the slip plane. However, over the second half of the last century, it is well recognized that the dilatancy angle influences the shear strength of sand. Many researchers have proposed correlations between the angle of shearing resistance at peak state in terms of intrinsic soil variables and soil state variables. Studies on the effect of dilatancy angle of soil, ψ, on the load-settlement response of a strip footing are available in the literature. However, in most of these studies, ψ equal to zero or equal to angle of shearing resistance of soil, is assumed, and only limited studies are available to predict the load-settlement response of strip footing when the dilatancy angle of sand lies between zero and In the present study, the effect of dilatancy angle of sand on the loadsettlement response of a rigid strip footing resting on sand and on the formation of slip planes is studied by varying the dilatancy angle ranging from zero to the angle of shearing resistance of soil (i.e., ψ =0 to
Genetic evaluation for understanding combining ability effects and Heterotic grouping in Maize (Zea mays L.)
Combining ability of the genotypes/lines is a major factor in planning the breeding programme and for development of Heterotic hybrids. In the present study, twenty maize inbred lines were crossed to three diverse testers CM-111, GPM-549 and GPM-581 and the resultant F1 hybrids were evaluated in an alpha lattice design. General combining ability of lines which is representation of additive gene action was found to be significant for all the quantitative traits. Specific combining ability which is indication of non-additive gene action was found to be significant for the traits number of kernel rows per cob, number of kernels per row, cob girth, cob length, test weight and grain yield. Lines VL-058725, VL-1018527 and VL-108723 produced heterotic hybrids in cross combination with any of the tester due to their high GCA effects. Whereas, the lines VL-0536, SNL-1574 and VL-109086 interacted positively with their testers thus producing heterotic hybrids with high positive SCA. GGE biplot analysis was helpful in visualizing the combining ability effects and identify heterotic pattern among theinbred lines. Heterotic grouping based on SCA and mean grain yield was able to classify thirteen of the twenty inbred lines into two distinct heterotic groups i.e., Heterotic group A and B consisting of six and seven lines respectively. Heterotic group A consisted of lines with high GCA whereas, heterotic group B with low GCA lines. SCA effect showed significant positive correlation with all the quantitative traits and played a prominent role in determining the performance of hybrids, thus indicating the importance of non-additive gene action in developingheterotic hybrids
Rectovestibular fistula: Is treatment always required?
The traditional teaching in the management of rectovestibular fistula involves corrective surgery, either in single or multiple stages.Usually, female children operated for the same are advised cesarean section during childbirth to prevent damage to the neoanus.Herein, we report a story of a 68-year-old woman with untreated rectovestibular fistula and has given birth to five children withoutany sequalae
Study of Ground Water Quality of Raichur in Industrial Zone in Concern to Effect of Industrial Discharges on Water Quality
This paper gives the information of the groundwater quality of Raichur industrial area. Different areas were selected for the study and comparison. The parameters studied were temperature, pH, total alkalinity, total hardness, chloride, sulphate, fluoride, total dissolved solids and conductivity. It was observed that there was a minor fluctuation in the physico-chemical parameters among the water samples studied from overall analysis. The groundwater is highly contaminated and account for health hazards for human use from the Comparison of the physico-chemical parameters of the water sample with WHO and ICMR limits
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