366 research outputs found
A STUDY OF B. ED. STUDENT TEACHERS\u27 ATTITUDES TOWARDS DIGITAL LIBRARIES IN MADURAI DISTRICT.
A normative survey was undertaken to determine the attitudes of B.Ed. student teachers concerning the Madurai district\u27s digital library. A sample of 200 students and teachers from various colleges in the Madurai area of Tamil Nadu. The Digital Library Attitude Scale was employed in this study as a tool (DLAS). Statistical approaches such as percentage analysis, mean, and standard deviation were used to analyse the data. . In terms of gender, the findings show that there is a considerable disparity between rural and urban students\u27 attitudes toward digital libraries. When comparing male and female students in their Digital library Attitude, female students (117.96) had a greater Digital library Attitude than male students (M=106.32). The results demonstrate that there is a considerable difference between the two groups. The findings demonstrate that there is a considerable variation in Digital library Attitude with respect to locality between rural and urban students. When comparing rural and urban students in terms of their Digital library Attitude, urban students (120.96) outperform rural students (M=107.96) in terms of locality. In terms of marital status, there is a substantial difference between married and unmarried students in their Digital library Attitude. When comparing married and unmarried students\u27 Digital library Attitude, single students (116.87) had a greater degree of Digital library Attitude than married students (M=107.73).
A Novel Cyber Resilience Framework – Strategies and Best Practices for Today's Organizations
Cyber resilience refers to an organization's ability to maintain its essential functions, services despite cyber-attacks and swiftly recover from any disruptions. It involves proactive measures like gathering threat intelligence and managing risks, as well as reactive measures such as incident response planning, data backup and recovery. To achieve cyber resilience, organizations must implement robust cyber security measures, regularly update their incident response plans, and educate employees on safe online practices. Furthermore, having a comprehensive backup and recovery strategy in place is crucial to swiftly restore critical systems and data in the event of an attack. Overall, the proposed framework emphasizes cyber resilience as a continuous and proactive approach for managing cyber security risks and safeguarding against the growing threat of cyber-attacks
Anthropogenic Impacts on Aquatic Insects in Six Streams of South Western Ghats
Diversity patterns of aquatic insects among sampling sites lying with!ç the unprotected and protected areas of Western Ghats were studied. This study primarily emphasizes whether anthropogenic influence is the prime cause for the presence of aquatic insects especialIy of pollution-sensitive organisms belonging to the orders Ephemeroptera, Plecoptera and Trichoptera, or to factors such as the physico-chemical features of the water, or sampling methods. Six streams were sampled quantitatively, of which three streams (Abbifalls, Monkey falls and SiIver Cascade) were within protected areas and the remaining three streams (Kumbakarai, Shenbagadevi and Manimutharu falls) were in unprotected areas. A total of 3,209 individual aquatic insects belonging to 25 genera, 18 families and 7 orders were collected. The highest species richness and abundance was observed in Monkey falls followed by Kumbakkarai falls. Large çumbers of more habitat-sensitive organisms such as Ecdyonurus sp., Epeorus sp., Thalerosphyrus sp., Euthraulus sp., and Nathanella sp., were found in Monkey falls. Though the species assemblage was somewhat different, pollution-sensitive taxa were also observed in Kumbakkarai falls. Shenbagadevi and Manimutharu falls had a lower diversity of aquatic insects. The likely causes of these differences are discussed
MEASURE THE USAGE OF E-RESOURCES: SCIENTOMETRIC MODEL
It is essential to evaluate the use of every resource that is acquired by the institute or through consortia. Therefore the objective of the study is to find trends in the usage of e-resources. The study emerged with three formulas such as Ratio of Resources, Ratio of Utilization and Resource Impact Factor. The study derived three axioms such as axiom 1 that Total number of downloads was directly proportional to the number of resources; Axiom 2 : Total number of downloads was directly proportional to the number of users and Axiom 3: Uses of e-resources were directly proportional to the number of resources and number of users. To prove the axioms, the data available regarding of usage of e-resources through e-ShodhShiindu (eSS) Consortium at the https://infistat.inflibnet.ac.in/ has been taken for analysis. The usage trends of nine full-text journals of the Gandhigram Rural Institute – Deemed to be University were taken up from 2012 to 2019. Use of e-resources was directly proportional to the number of resources and the number of users and not by the number of downloads. This paper emphasizes different parameters in measuring the use of e-resources subscribed based on the number of downloads
GREEN SYNTHESIS AND CHARACTERIZATION OF SILVER NANOPARTICLES FROM WITHANIA SOMNIFERA (L.) DUNAL
The metal nanoparticle synthesis is highly explored the field of nanotechnology. The biological methods seem to be more effective because of slowreduction rate and polydispersity of the final products. The main aim of this study is too the rapid and simplistic synthesis of silver nanoparticlesby Withania somnifera Linn. at room temperature. The exposure of reaction mixtures containing silver nitrate and dried leaf powder of W. somniferaresulted in reduction of metal ions within 5 minutes. The extracellular synthesized silver nanoparticles were characterized by ultraviolet-visible,infrared (IR) spectroscopy, X-ray diffraction studies, zeta potential, Fourier transform IR, and scanning electron microscopy. The antibacterial andantifungal studies showed significant activity as compared to their respective standards. From the results, W. somnifera sliver nanoparticle has attainedthe maximum antimicrobial against clinical pathogens and also seen very good stability of nanoparticle throughput processing. As we concluded, thistype of naturally synthesized sliver nanoparticle could be a better green revolution in medicinal chemistry.Keywords: Antimicrobial activity, Silver nanoparticles, Withania somnifera
FORMULATION AND EVALUATION OF INDOMETHACIN EXTENDED RELEASE PELLETS
Objective: The present investigation was to design pellets loaded with Indomethacin for extended release. Indomethacin is a non steroidal anti inflammatory drug (NSAID) commonly used for reduction of pain and inflammation. To improve the bioavailability indomethacin was prepared by fluidised bed coating tablet technology.
Methods: Indomethacin pellets were prepared using hydroxy propyl methyl cellulose and ethyl cellulose as a polymer in different concentration. Pellets were evaluated for physico - chemical properties such as hardness, friability, thickness, weight variation, drug content uniformity and capsule lock length. In vitro drug release studies were carried out USP rotating basket type I method and the samples were analyzed at 319nm by UV spectrophotometer.
Results: FT-IR studies revealed that there was no interaction betweeen drug and polymers used in the study. The drug release from F5 formulation was found to zero order kinetic model. It was also found linear in higuchi plot which confirms that diffusion is one of the mechanism of drug release.
Conclusion: Among these formulations, Formulation (F5) containing Ethyl cellulose (4cps) 5mg & HPC 20 mg and extended release coating upto 7% showed optimized release pattern.The optimized formulation (F5) releases the drug upto 24hrs and fulfilled the requirements such as cost effective and high patient compliance
Evaluation of the use high resolution satellite Imagery to map slope instability in a tropical environment: St. Thomas, Jamaica
Landslides are a major natural hazard in Jamaica, and have resulted in loss of life, major economic losses, social disruption and damage to public and private properties. There is a need to delineate areas that are prone to slope instability in order to mitigate their effects. The first and most important stage for the creation of a landslide risk maps is the collection of accurate landslide data in a timely manner. However the type of terrain makes landslide mapping particularly difficult. Aerial Photographs have proven to be an effective way of mapping landslides but acquiring new photographs to map recent landslides is very expensive. High resolution satellite imagery were evaluated for their effectiveness in delineating landslides. The landslides on a whole had no distinctive spectral property; hence no one classification technique could be used to identify them. This research developed integrative methods utilising a combination of: edge enhancement to delineate the scarps area; Wetness Index to identify back titling blocks and debris flow lobes where moisture is higher; shape classification (to distinguish from e.g. ground cleared for agriculture); and slope curvature to map scarps. The information from the image classification was combined in a GIS and automated to determine the probability of the presence and or absence of a landslides. Data derived was validated against detailed field mapping at a scale of 1:5000. For more recent landslides, the modelling proved to be effective, accurately identifying 91% of the landslide both in terms of the location and extent. For the older landslides Pre 2000) the mapping was less effective, with misclassification as high as 24% particularly for smaller landslides. However, the use of these imagery does have great potential as they prove useful for mapping new landslides quickly and efficiently after landslide disaster and are much cheaper and quicker to acquire.University of Chester, KT research grant, and as an outcome of statutory research no. 528-0302-0828 Faculty of Geodesy and Land Management, Institute of Geodesy, bUniversity of Warmia and Mazury in Olszty
review
This article introduces and discusses the relationship between diabetes mellitus and depressio
On Regular Elements in an Incline
Inclines are additively idempotent semirings in which products are less than (or) equal to either factor. Necessary and sufficient conditions for an element in an incline to be regular are obtained. It is proved that every regular incline is a distributive lattice. The existence of the Moore-Penrose inverse of an element in an incline with involution is discussed. Characterizations of the set of all generalized inverses are presented as a generalization and development of regular elements in a ∗-regular ring
Intracellular granzyme A expression of peripheral blood lymphocyte subsets in pulmonary tuberculosis
Cell-mediated immunity is a key weapon of host defence
against tuberculosis (TB). Granzyme A (GzmA),
a serine protease, present in the granules of cytotoxic
cells induces caspase-independent cell death. We estimated
the proportion of GzmA producing lymphocyte
subsets in peripheral blood from 59 normal healthy
volunteers and 48 pulmonary TB (PTB) patients using
flow cytometry. When compared with normal healthy
subjects, we observed a significantly higher percentage
of GzmA-positive CD56+ cells (P = 0.01) in PTB
patients. However, when the absolute number was
compared between the two groups, a significantly decreased
number of GzmA-expressing CD16+ (P = 0.01)
and CD56+ (P = 0.0001) cells was observed in patients
and this could be explained by the significantly reduced
number of total lymphocytes (P = 0.0009) seen
in the patients. There was no significant difference in
the number of CD4+ and CD8+ GzmA double-positive
cells between the two study groups. CD56 is a natural
killer cell marker and these cells represent innate immune
response to TB. We report an increased percentage of
CD56+ cells expressing GzmA in TB patients, which
shows the relevance of the GzmA-mediated pathway
of apoptosis in immunity against Mycobacterium tuberculosis
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