1,266 research outputs found

    Use of Online Public Access Catalogue (OPAC) in Selected University Libraries in South- South Nigeria

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    This paper examines the use of OPAC in selected university libraries in south- south Nigeria. In actualizing this, four (4) research questions were formulated which are: How frequently do the users in university libraries in South-South Nigeria use OPAC? What are the purposes of use of OPAC? How frequently do the patrons search for various information resources through the OPAC? What are the challenges faced by library users with the use of OPAC? The study adopted the descriptive survey design. The population of the study is made up of 18,332 registered under -graduate library users and the sampling size of 920, which led to the distribution of 460 questionnaires to each of the University libraries. The findings from the study are as follows: Students’ use of OPAC in university libraries in South-South Nigeria is low, the main purpose for using OPAC by the respondents are to locate documents, to know about a document without physically visiting the library, to find out if a document is available in the library, as well as to search and retrieve information. The frequency of use shows that a large chunk of the respondents rarely and never use OPAC for searching for information resources in the library while a few respondents sometimes use OPAC to source materials in the library. From the findings the following challenges were identified: Poor/irregular power supply, lack of OPAC knowledge and unfamiliarity with the OPAC system, Inadequate computer terminals, Navigational frustrations, OPAC is not user friendly enough, Lack of assistance from library staff and failed search or no records retrieved, Inability to use appropriate search terms, Complicated/Confusing to me, retrieve unmanageably large number of records and search requests/terms are too broad or too narrow. The study thus concluded by giving the following recommendations: Efforts should be geared towards inculcating on university students the knowledge and skills required to use OPAC, Universities should be equipped with the enabling infrastructure such as adequate power supply, effective Internet connectivity etc. that will encourage the use of OPAC and University libraries should formulate policies that would encourage mandatory use of OPACs

    ADOPTION OF SOCIAL NETWORKS MEDIA FOR REFERENCE SERVICES IN ACADEMIC LIBRARIES

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    This study was carried out to investigate the adoption of social networks media for reference services in academic libraries. Thus, the study discovered among others, the meaning of social networking media and the types of social networking media tools that can be applied in the reference section by the reference librarian for the provision of reference services in academic libraries. To achieve the objectives of this study, four (4) research questions were formulated. The study pointed out among others, that there are two major types of reference services which are: direct and indirect reference services and they are in use in academic libraries. The study also pointed out some vital Social networks media tools that can be used in the provision of reference services in meeting the needs of library users. It also discovered among others, the facilities such as computer, internet, webcam and cellphones that will enable the application of social networking media for the provision of reference services in academic libraries. The study outlined some problems that hinders the application of social networking media and they are: network bandwidth problem, lack of access to internet, unavailable power supply, lack of staff training and the problem of maintenance culture. The study concluded that the academic libraries especially the reference section should adopt the social media tools in the provision of reference services to library clientele in this era of technological explosion

    A qualitative inquiry of experiences of HIV-related stigma and its effects among people living with HIV on treatment in rural Kilifi, Kenya

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    Background: The pervasiveness of HIV-related stigma and discrimination, and its consequences on HIV prevention and treatment, have been well documented. However, little is known about the lived experiences of HIV-related stigma and its effects among the general adult population living with HIV in rural African settings. This study set out to explore this knowledge gap. Methods: From April to June 2018, we conducted in-depth interviews with a convenience sample of 40 adults living with HIV aged 18–58 years in Kilifi, Kenya. A semi-structured interview guide was used to explore experiences of HIV-related stigma and its impact on these adults. A framework approach was used to analyze the data using NVIVO 11 software. Results: Participants reported experiences of HIV-related stigma in its various forms (anticipated, perceived, internalised, and enacted), as well as its effects on HIV treatment and social and personal spheres. The internalisation of stigma caused by enacted stigma impacted care-seeking behavior resulting in worse overall health. Anxiety and depression characterized by suicidal ideation were the results of internalised stigma. Anticipated stigma prompted HIV medication concealment, care-seeking in remote healthcare facilities, and care avoidance. Fewer social interactions and marital conflicts resulted from perceived stigma. Overall, HIV-related stigma resulted in partial and non-disclosure of HIV seropositivity and medication non-adherence. At a personal level, mental health issues and diminished sexual or marital prospects (for the unmarried) were reported. Conclusion: Despite high awareness of HIV and AIDS among the general population in Kenya, adults living with HIV in rural Kilifi still experience different forms of HIV-related stigma (including self-stigma) that result in a raft of social, personal, and HIV-treatment-related consequences. Our findings underscore the urgent need to reevaluate and adopt more effective strategies for implementing HIV-related anti-stigma programs at the community level. Addressing individual-level stigma will require the design of targeted interventions. To improve the lives of adults living with HIV in Kilifi, the effects of HIV-related stigma, particularly on HIV treatment, must be addressed

    Intrinsic tethering activity of endosomal Rab proteins.

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    Rab small G proteins control membrane trafficking events required for many processes including secretion, lipid metabolism, antigen presentation and growth factor signaling. Rabs recruit effectors that mediate diverse functions including vesicle tethering and fusion. However, many mechanistic questions about Rab-regulated vesicle tethering are unresolved. Using chemically defined reaction systems, we discovered that Vps21, a Saccharomyces cerevisiae ortholog of mammalian endosomal Rab5, functions in trans with itself and with at least two other endosomal Rabs to directly mediate GTP-dependent tethering. Vps21-mediated tethering was stringently and reversibly regulated by an upstream activator, Vps9, and an inhibitor, Gyp1, which were sufficient to drive dynamic cycles of tethering and detethering. These experiments reveal a previously undescribed mode of tethering by endocytic Rabs. In our working model, the intrinsic tethering capacity Vps21 operates in concert with conventional effectors and SNAREs to drive efficient docking and fusion

    A duchenne muscular dystrophy gene hot spot mutation in dystrophin-deficient Cavalier King Charles Spaniels is amenable to exon 51 skipping

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    BACKGROUND Duchenne muscular dystrophy (DMD), which afflicts 1 in 3500 boys, is one of the most common genetic disorders of children. This fatal degenerative condition is caused by an absence or deficiency of dystrophin in striated muscle. Most affected patients have inherited or spontaneous deletions in the dystrophin gene that disrupt the reading frame resulting in unstable truncated products. For these patients, restoration of the reading frame via antisense oligonucleotide-mediated exon skipping is a promising therapeutic approach. The major DMD deletion "hot spot" is found between exons 45 and 53, and skipping exon 51 in particular is predicted to ameliorate the dystrophic phenotype in the greatest number of patients. Currently the mdx mouse is the most widely used animal model of DMD, although its mild phenotype limits its suitability in clinical trials. The Golden Retriever muscular dystrophy (GRMD) model has a severe phenotype, but due to its large size, is expensive to use. Both these models have mutations in regions of the dystrophin gene distant from the commonly mutated DMD "hot spot". METHODOLOGY/PRINCIPAL FINDINGS Here we describe the severe phenotype, histopathological findings, and molecular analysis of Cavalier King Charles Spaniels with dystrophin-deficient muscular dystrophy (CKCS-MD). The dogs harbour a missense mutation in the 5' donor splice site of exon 50 that results in deletion of exon 50 in mRNA transcripts and a predicted premature truncation of the translated protein. Antisense oligonucleotide-mediated skipping of exon 51 in cultured myoblasts from an affected dog restored the reading frame and protein expression. CONCLUSIONS/SIGNIFICANCE Given the small size of the breed, the amiable temperament and the nature of the mutation, we propose that CKCS-MD is a valuable new model for clinical trials of antisense oligonucleotide-induced exon skipping and other therapeutic approaches for DMD

    A qualitative inquiry of experiences of HIV-related stigma and its effects among people living with HIV on treatment in rural Kilifi, Kenya

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    Background: The pervasiveness of HIV-related stigma and discrimination, and its consequences on HIV prevention and treatment, have been well documented. However, little is known about the lived experiences of HIV-related stigma and its effects among the general adult population living with HIV in rural African settings. This study set out to explore this knowledge gap. Methods: From April to June 2018, we conducted in-depth interviews with a convenience sample of 40 adults living with HIV aged 18–58 years in Kilifi, Kenya. A semi-structured interview guide was used to explore experiences of HIV-related stigma and its impact on these adults. A framework approach was used to analyze the data using NVIVO 11 software. Results: Participants reported experiences of HIV-related stigma in its various forms (anticipated, perceived, internalised, and enacted), as well as its effects on HIV treatment and social and personal spheres. The internalisation of stigma caused by enacted stigma impacted care-seeking behavior resulting in worse overall health. Anxiety and depression characterized by suicidal ideation were the results of internalised stigma. Anticipated stigma prompted HIV medication concealment, care-seeking in remote healthcare facilities, and care avoidance. Fewer social interactions and marital conflicts resulted from perceived stigma. Overall, HIV-related stigma resulted in partial and non-disclosure of HIV seropositivity and medication non-adherence. At a personal level, mental health issues and diminished sexual or marital prospects (for the unmarried) were reported. Conclusion: Despite high awareness of HIV and AIDS among the general population in Kenya, adults living with HIV in rural Kilifi still experience different forms of HIV-related stigma (including self-stigma) that result in a raft of social, personal, and HIV-treatment-related consequences. Our findings underscore the urgent need to reevaluate and adopt more effective strategies for implementing HIV-related anti-stigma programs at the community level. Addressing individual-level stigma will require the design of targeted interventions. To improve the lives of adults living with HIV in Kilifi, the effects of HIV-related stigma, particularly on HIV treatment, must be addressed

    Increase in Caesarean Deliveries after the Australian Private Health Insurance Incentive Policy Reforms

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    AbstractBackground: The Australian Private Health Insurance Incentive (PHII) policy reforms implemented in 1997–2000 increased PHI membership in Australia by 50%. Given the higher rate of obstetric interventions in privately insured patients, the reforms may have led to an increase in surgical deliveries and deliveries with longer hospital stays. We aimed to investigate the effect of the PHII policy introduction on birth characteristics in Western Australia (WA).Methods and Findings: All 230,276 birth admissions from January 1995 to March 2004 were identified from administrative birth and hospital data-systems held by the WA Department of Health. Average quarterly birth rates after the PHII introduction were estimated and compared with expected rates had the reforms not occurred. Rate and percentage differences (including 95% confidence intervals) were estimated separately for public and private patients, by mode of delivery, and by length of stay in hospital following birth. The PHII policy introduction was associated with a 20% (221.4 to219.3) decrease in public birth rates, a 51% (45.1 to 56.4) increase in private birth rates, a 5% (25.3 to 25.1) and 8% (28.9 to 27.9) decrease in unassisted and assisted vaginal deliveries respectively, a 5% (25.3 to 25.1) increase in caesarean sections with labour and 10% (8.0 to 11.7) increase in caesarean sections without labour. Similarly, birth rates where the infant stayed 0–3 days in hospital following birth decreased by 20% (221.5 to 218.5), but rates of births with .3 days inhospital increased by 15% (12.2 to 17.1).Conclusions: Following the PHII policy implementation in Australia, births in privately insured patients, caesarean deliveries and births with longer infant hospital stays increased. The reforms may not have been beneficial for quality obstetric care in Australia or the burden of Australian hospitals

    Apiotrichum terrigenum sp. nov., a novel soil-associated yeast found in both the UK and mainland Europe

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    Five arthroconidium-producing yeast strains representing a novel Trichosporon-like species were independently isolated from the UK, Hungary and Norway. Two strains (Bio4(T) and Bio21) were isolated from biogas reactors used for processing grass silage, with a third strain (S8) was isolated from soil collected at the same UK site. Two additional strains were isolated in mainland Europe, one from soil in Norway (NCAIM Y.02175) and the other from sewage in Hungary (NCAIM Y.02176). Sequence analyses of the D1/D2 domains of the LSU rRNA gene and internal transcribed spacer (ITS) region indicated that the novel species belongs to the recently reinstated genus Apiotrichum and is most closely related to Apiotrichum scarabaeorum, a beetle-associated species first found in South Africa. Despite having similar physiological characteristics, the two species can be readily distinguished from one another by ITS sequencing. The species name Apiotrichum terrigenum sp. nov. is proposed to accommodate these strains, with Bio4(T) (=CBS 11373(T)=NCYC 3540(T)) designated as the type strain. The Mycobank deposit number is MB817431
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