• Title/Summary/Keyword: Postgraduate Research

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Postgraduate Students’ Use of E-Resources in Nigerian University Libraries: What is the Influence of User Education?

  • Abubakar, Daniel;Adetimirin, Airen
    • Journal of Information Science Theory and Practice
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    • v.4 no.3
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    • pp.43-56
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    • 2016
  • Introduction. Inadequate methods for acquiring user education could affect the level of library user education possessed by postgraduate students, and ultimately influence the purposes of their usage of e-resources provided in their university libraries. Despite the global acceptance that e-resources are contributing to postgraduate student’s research work, however, it has been documented that there is low use of e-resources in university libraries in Nigeria among postgraduate students. This drift could have negative consequences on their overall development. Therefore, this study determined how influential library user education is on the use of e-resources by postgraduate students in Nigerian university libraries.Methods. A survey research design and multi-stage sampling technique was adopted to select 2,726 from 54,578 postgraduate students from four faculties in 16 federal conventional universities in Nigeria. The data set was collected using a questionnaire and an interview schedule for e-resources librarians/system librarians and was analysed using percentage and Pearson’s product moment correlation.Results. The majority of the students were at the Master’s level (57.5%). The gender shows a ratio of 59.0% male and 41.0% female. Most Nigerian students enrol for postgraduate programmes in their thirties ‘30-39’ years. The use of e-resources by the postgraduates was low (weighted average of 2.45). The relationship between level of library user education and postgraduate students’ use of e-resources was positive, slightly strong, and significant (r = 318; df = 2284; p< .05).Conclusion. User education has positively inclined postgraduate students to the use of e-resources in their libraries. Therefore, libraries should employ all methods for acquiring user education for postgraduate students.

Vaginal Dose, Toxicity and Sexual Outcomes in Patients of Cervical Cancer Undergoing Image Based Brachytherapy

  • Rai, Bhavana;Dhanireddy, Bhaswanth;Patel, Firuza Darius;Kumari, Reena;Oinam, Arun Singh;Simha, Vijai;Sharma, Suresh
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.8
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    • pp.3619-3623
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    • 2014
  • Background: The aim of the study was to evaluate the vaginal dose and toxicity in patients of cervical cancer treated with image guided brachytherapy at our institute. Materials and Methods: Thirty-five patients treated with image based brachytherapy for cervical cancer were included. Vaginal contouring was done on MRI at brachytherapy and with CT scans of subsequent brachytherapy fractions. Dose volume parameters (DVH) were reported in accordance with the GEC-ESTRO guidelines. These were correlated with vaginal toxicity (assessed by CTCAE version 3) and quality of sexual life assessed at one year of completion of treatment. Results: Vaginal shortness was observed in 22 out of 30 (62.8%) patients, Nine (25.7%) had vaginal dryness and in 10 (28.5%) patients, there was contact bleeding. No association could be demonstrated between the dose volume parameters and vaginal toxicity in the present study. Conclusions: The lack of association between dose volume parameters of vagina with vaginal morbidity may be due to uncertainties involved in the delineation of vaginal wall and dosimetry. Future research is required to accurately define vaginal dose distribution to study its correlation with vaginal morbidity. Vaginal morbidity needs to be documented in order to improve the sexual outcome in these patients.

Cardioprotective effect of Argyreia speciosa (Burm. f) Boj. extracts against Isoproterenol- induced myocardial infarction in rats

  • Thakker, Shalin;Biradar, S.M.;Habbu, P.V.;Mahadevan, K.M.;Thippeswamy, B.S.;Veerapur, V.P.
    • Advances in Traditional Medicine
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    • v.10 no.4
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    • pp.278-287
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    • 2010
  • The present study was undertaken to evaluate the protective effect of ethanol (EtAS), ethyl acetate (EAAS) and aqueous (AQAS) extracts of Argyreia speciosa (AS) roots against Isoproterenol (ISO)-induced myocardial infarction in rats. The animals were exposed to isoproterenol (200 mg/kg. s.c) twice at an interval of 24 hrs. Cardioprotective effect was assessed by observing ECG parameters, serum marker enzymes and histopathology of the heart. Pretreatment of EAAS, and EtAS (200 mg/kg) resulted in a significant (P < 0.001) increase in P wave, QRS complex and R-R interval, whereas heart rate, QT interval and cardiac cycle were maintained near to normal values. EtAS and EAAS showed significant (P < 0.05; P < 0.001) reduction in all the tested diagnostic markers compared to ISO treated group. Histological studies on the structural changes of heart tissue supported the protective activity of AS. The result suggest that treatment of AS prior to ISO has a significant role in protecting the animals from ISO induced myocardial infarction.

External pancreatic ductal stenting in minimally invasive pancreatoduodenectomy: How to do it?

  • Ram Prakash Gurram;Harilal S L;Senthil Gnanasekaran;Satyaprakash Ray Choudhury;Biju Pottakkat;Kalayarasan Raja
    • Annals of Hepato-Biliary-Pancreatic Surgery
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    • v.27 no.2
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    • pp.211-216
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    • 2023
  • It has been shown that external pancreatic ductal stenting (EPDS) can reduce the incidence of clinically relevant postoperative pancreatic fistula. Although studies have described EPDS in open pancreaticoduodenectomy (PD), EPDS in minimally invasive PD has not been reported yet. Thus, the objective of this study was to describe the technique of EPDS in minimally invasive PD. The procedure was performed either laparoscopically or using a robot. Once PD was completed, key steps included triple enterotomy, threading of silk-suture through all enterotomies and exteriorization, completing posterior layer of pancreaticojejunostomy (PJ), railroading stent through preplaced silk-suture, intubation of stent into the pancreatic duct, completion of PJ, followed by hepaticojejunostomy and parietalization of jejunum at the stent exit site. EPDS in PD through a minimally invasive approach can be performed safely in selected cases with either a small-sized pancreatic duct or a soft pancreas.

Phototrophic Bacteria as Fish Feed Supplement

  • Banerjee, S.;Azad, S.A.;Vikineswary, S.;Selvaraj, O.S.;Mukherjee, T.K.
    • Asian-Australasian Journal of Animal Sciences
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    • v.13 no.7
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    • pp.991-994
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    • 2000
  • Single cell of an indigenous phototrophic bacterium, Rhodovulum sulfidophilum, was incorporated in commercial fish feed for Oreochromis niloticus. The bacterial cell was analyzed for nutritional value and tested for toxicity and acceptability as an aquaculture feed supplement. The results showed higher survival rate and significantly higher growth rate (p<0.001) in O. niloticus fed with the bacteria incorporated fish feed. It is suggested that R sulfidophilum can be utilized as an aquaculture feed supplement.

Effect of span length on the fit of zirconia framework fabricated using CAD/CAM system

  • Lee, Jeong-Yol;Choi, Sang-Jin;Kim, Min-Soo;Kim, Ha-Young;Kim, Young-Soo;Shin, Sang-Wan
    • The Journal of Advanced Prosthodontics
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    • v.5 no.2
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    • pp.118-125
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    • 2013
  • PURPOSE. The purpose of this study was to evaluate the effect of the span length on the fit of zirconia framework fabricated using CAD/CAM system. MATERIALS AND METHODS. Abutments for single, 4-unit and 6-unit fixed partial prostheses were fabricated. Ten zirconia frameworks were fabricated for each group. The marginal and internal gap were presented by means of replica technique and measured by measuring microscope ($AXIO^{(R)}$, Carl Zeiss, Rochester, NY) and software (I-$solution^{(R)}$, IMT i-solution Inc., Vancouver, BC, Canada). The results were statistically analyzed by multivariate analysis test and Dunnett T3 test for post hoc test (${\alpha}$=.05). RESULTS. There were statistically significant differences at 2, 4, 7, 8 points (mesio-distal section) and b, d, e, f, g (labio-lingual section). In some marginal reference points of 6-unit group (P<.05), the marginal gap were larger than 120 ${\mu}m$. CONCLUSION. Span length of zirconia core may have an influence on marginal and internal fit. Within the limitation of this study, the increase of span length of zirconia framework of 6 or more-unit fixed partial denture may decrease the marginal and internal fit.

A comparative analysis of domestir vs. overseas postgraduate education in science and technology

  • Kim, Ji-Soo
    • Journal of the Korean Operations Research and Management Science Society
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    • v.10 no.2
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    • pp.65-74
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    • 1985
  • Domestic versus overseas postgraduate education in science and engineering has its own advantages and disadvantages. One of the issues involved in developing countries is the problem of brain drain. This study deals with the cost and benefit of domestic and foreign education, problems in brain drain and the social and private rate of return analysis in postgraduate science and technology education in Korea.

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The Effect of Leadership Style on Organizational Commitment and Employee Performance: An Empirical Study from Indonesia

  • NURANI, Dianta Waode;SAMDIN, Samdin;NASRUL, Nasrul;SUKOTJO, Endro
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.12
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    • pp.141-151
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    • 2021
  • This study aims to: 1) analyze the effect of leadership style on job satisfaction and organizational commitment, 2) analyze the effect of leadership style, job satisfaction and organizational commitment on employee performance, 3) examine the indirect effect of leadership style on employee performance mediated by job satisfaction and organizational commitment. The population of this research is all employees who have structural positions totaling 95 respondents. The sample was selected using the census technique, resulting in a total of 95 respondents in the research sample. Methods of data collection was using a questionnaire. The research model is structural so that the research data is analyzed using SEM Smart PLS 2. Research results: 1) leadership style has a positive and significant effect on job satisfaction and organizational commitment, 2) leadership style, job satisfaction, and organizational commitment have a positive and significant effect on employee performance, 3) Job satisfaction and organizational commitment mediates the influence of leadership style on employee performance, and has a positive and significant effect. Indirect influence gives stronger results than direct influence. As a result, it is hoped that university leadership will use an effective leadership style and pay attention to employee work satisfaction and commitment to boost employee performance.