254 research outputs found
Gambaran Dosen Dan Pembimbing Klinik Yang Diharapkan Mahasiswa S1 Keperawatan UMS
Program studi S1 Keperawatan UMS menerapkan sistem pendidikan berbasis kompetensi, sehingga membutuhkan dosen dan pembimbing klinik yang berkompeten. Dosen dan pembimbing klinik yang sesuai dengan kebutuhan dan
harapan mahasiswa diperlukan untuk meningkatkan motivasi belajar dan mampu mempengaruhi perilaku mahasiswa. Tujuan penelitian ini adalah mengetahui gambaran dosen dan pembimbing klinik yang diharapkan mahasiswa S1
Keperawatan UMS. Penelitian ini merupakan penelitian deskriptif dengan analisis kuantitatif semi kualitatif, menggunakan tehnik proportionate stratified random
sampling. Dari 430 anggota populasi, dengan tingkat kesalahan 5% diperoleh sampel sebanyak 367. Hasil penelitian menunjukkan bahwa gambaran dosen dan pembimbing klinik yang paling diharapkan mahasiswa S1 keperawatan UMS adalah dosen yang berlatar belakang pendidikan minimal S2 keperawatan, memiliki keahlian dalam bidang keperawatan dengan prestasi luar biasa, berpenampilan menutup aurat, memiliki keterampilan metode untuk mengatasi kebosanan mahasiswa, care terhadap mahasiswa, mampu menjadi fasilitator, membantu mahasiswa dalam mengambil keputusan dan menyaring informasi yang diperoleh; pembimbing klinik yang berlatar belakang pendidikan minimal Ns, berpenampilan sopan, mampu mengkombinasikan konsep teori dengan praktik, melakukan bimbingan tiga hari sekali, bertanggung jawab, dan
memberikan kebebasan pada mahasiswa untuk menyampaikan opini dan pandangan mahasiswa secara terbuka. Dari penelitian ini, dapat dilakukan penelitian lebih lanjut untuk menjawab permasalahan lain yang berhubungan
dengan penelitian ini
Framing a social network analysis approach to understanding reputational power in the water governance of Johor, Malaysia
Medicinal properties screening of Mallotus paniculatus extract
Traditionally, Mallotus paniculatus (Balik Angin) plant is used in the treatment of various diseases in rural areas such as remedy after childbirth, wound healing and fever. In this present study, four medicinal properties of the plant were investigated which included antibacterial, antifungal, anticancer and antioxidant activities. Materials and Methods: Potential medicinal compounds were extracted from the plant leaves by sonication with 3 different solvents namely ethanol, ethyl acetate and hexane respectively. The antibacterial and antifungal properties were determined using disc diffusion agar and broth dilution assay, the antioxidant activity by DPPH scavenging assay and the anticancer effect by MTT assay. Results: From the screening of the medicinal properties, M. paniculatus leave extracts were shown to possess antibacterial, antioxidant and anticancer properties but not antifungal properties. Ethanolic and ethyl acetate extracts of the leave were active against gram positive bacteria (Staphylococcus aureus and Bacillus subtilis) but not gram negative bacteria (Pseudomonas aeruginosa and Escherichia coli). The antioxidant activity of the ethanolic crude extract was high; with IC50 of 30 Îźg/ml comparable with the positive controls; ascorbic acid and butylated hydroxytoluene (BHT). Both ethanolic and ethyl acetate extracts were cytotoxic against breast cancer (MCF7), colon cancer (HT-29), cervix cancer (Hela) cell lines. Conclusion: M. paniculatus leave extract has many potential medicinal values for further studies
Gene Expression Disruptions of Organism versus Organ in Drosophila Species Hybrids
Hybrid dysfunctions, such as sterility, may result in part from disruptions in the regulation of gene expression. Studies of hybrids within the Drosophila simulans clade have reported genes expressed above or below the expression observed in their parent species, and such misexpression is associated with male sterility in multigenerational backcross hybrids. However, these studies often examined whole bodies rather than testes or had limited replication using less-sensitive but global techniques. Here, we use a new RNA isolation technique to re-examine hybrid gene expression disruptions in both testes and whole bodies from single Drosophila males by real-time quantitative RT-PCR. We find two early-spermatogenesis transcripts are underexpressed in hybrid whole-bodies but not in assays of testes alone, while two late-spermatogenesis transcripts seem to be underexpressed in both whole-bodies and testes alone. Although the number of transcripts surveyed is limited, these results provide some support for a previous hypothesis that the spermatogenesis pathway in these sterile hybrids may be disrupted sometime after the expression of the early meiotic arrest genes
Hydrolysis optimization and characterization study of preparing fatty acids from Jatropha curcas seed oil
<p>Abstract</p> <p>Background</p> <p>Fatty acids (FAs) are important as raw materials for the biotechnology industry. Existing methods of FAs production are based on chemical methods. In this study potassium hydroxide (KOH)-catalyzed reactions were utilized to hydrolysis <it>Jatropha curcas </it>seed oil.</p> <p>Results</p> <p>The parameters effect of ethanolic KOH concentration, reaction temperature, and reaction time to free fatty acid (FFA%) were investigated using D-Optimal Design. Characterization of the product has been studied using Fourier transforms infrared spectroscopy (FTIR), gas chromatography (GC) and high performance liquid chromatography (HPLC). The optimum conditions for maximum FFA% were achieved at 1.75M of ethanolic KOH concentration, 65°C of reaction temperature and 2.0 h of reaction time.</p> <p>Conclusions</p> <p>This study showed that ethanolic KOH concentration was significant variable for <it>J. curcas </it>seed oil hydrolysis. In a 18-point experimental design, FFA% of hydrolyzed <it>J. curcas </it>seed oil can be raised from 1.89% to 102.2%, which proved by FTIR and HPLC.</p
Utilisation of an operative difficulty grading scale for laparoscopic cholecystectomy
Background
A reliable system for grading operative difficulty of laparoscopic cholecystectomy would standardise description of findings and reporting of outcomes. The aim of this study was to validate a difficulty grading system (Nassar scale), testing its applicability and consistency in two large prospective datasets.
Methods
Patient and disease-related variables and 30-day outcomes were identified in two prospective cholecystectomy databases: the multi-centre prospective cohort of 8820 patients from the recent CholeS Study and the single-surgeon series containing 4089 patients. Operative data and patient outcomes were correlated with Nassar operative difficultly scale, using Kendallâs tau for dichotomous variables, or JonckheereâTerpstra tests for continuous variables. A ROC curve analysis was performed, to quantify the predictive accuracy of the scale for each outcome, with continuous outcomes dichotomised, prior to analysis.
Results
A higher operative difficulty grade was consistently associated with worse outcomes for the patients in both the reference and CholeS cohorts. The median length of stay increased from 0 to 4 days, and the 30-day complication rate from 7.6 to 24.4% as the difficulty grade increased from 1 to 4/5 (both pâ<â0.001). In the CholeS cohort, a higher difficulty grade was found to be most strongly associated with conversion to open and 30-day mortality (AUROCâ=â0.903, 0.822, respectively). On multivariable analysis, the Nassar operative difficultly scale was found to be a significant independent predictor of operative duration, conversion to open surgery, 30-day complications and 30-day reintervention (all pâ<â0.001).
Conclusion
We have shown that an operative difficulty scale can standardise the description of operative findings by multiple grades of surgeons to facilitate audit, training assessment and research. It provides a tool for reporting operative findings, disease severity and technical difficulty and can be utilised in future research to reliably compare outcomes according to case mix and intra-operative difficulty
"Before we used to get sick all the time": perceptions of malaria and use of long-lasting insecticide-treated bed nets (LLINs) in a rural Kenyan community
<p>Abstract</p> <p>Background</p> <p>Malaria is a leading global cause of preventable morbidity and mortality, especially in sub-Saharan Africa, despite recent advances in treatment and prevention technologies. Scale-up and wide distribution of long-lasting insecticide-treated nets (LLINs) could rapidly decrease malarial disease in endemic areas, if used properly and continuously. Studies have shown that effective use of LLINs depends, in part, upon understanding causal factors associated with malaria. This study examined malaria beliefs, attitudes, and practices toward LLINs assessed during a large-scale integrated prevention campaign (IPC) in rural Kenya.</p> <p>Methods</p> <p>Qualitative interviews were conducted with 34 IPC participants who received LLINs as part of a comprehensive prevention package of goods and services. One month after distribution, interviewers asked these individuals about their attitudes and beliefs regarding malaria, and about their use of LLINs.</p> <p>Results</p> <p>Virtually all participants noted that mosquitoes were involved in causing malaria, though a substantial proportion of participants (47 percent) also mentioned an incorrect cause in addition to mosquitoes. For example, participants commonly noted that the weather (rain, cold) or consumption of bad food and water caused malaria. Regardless, most participants used the LLINs they were given and most mentioned positive benefits from their use, namely reductions in malarial illness and in the costs associated with its diagnosis and treatment.</p> <p>Conclusions</p> <p>Attitudes toward LLINs were positive in this rural community in Western Kenya, and respondents noted benefits with LLIN use. With improved understanding and clarification of the direct (mosquitoes) and indirect (e.g., standing water) causes of malaria, it is likely that LLIN use can be sustained, offering effective household-level protection against malaria.</p
Spatial risk profiling of Plasmodium falciparum parasitaemia in a high endemicity area in CĂ´te d'Ivoire
Background. The objective of this study was to identify demographic, environmental and socioeconomic risk factors and spatial patterns of Plasmodium falciparum parasitaemia in a high endemicity area of Africa, and to specify how this information can facilitate improved malaria control at the district level. Methods. A questionnaire was administered to about 4,000 schoolchildren in 55 schools in western Äte d'Ivoire to determine children's socioeconomic status and their habit of sleeping under bed nets. Environmental data were obtained from satellite images, digitized ground maps and a second questionnaire addressed to school directors. Finger prick blood samples were collected and P. falciparum parasitaemia determined under a microscope using standardized, quality-controlled methods. Bayesian variogram models were utilized for spatial risk modelling and mapping of P. falciparum parasitaemia at non-sampled locations, assuming stationary and non-stationary underlying spatial dependence. Results. Two-thirds of the schoolchildren were infected with P. falciparum and the mean parasitaemia among infected children was 959 parasites/Îźl of blood. Age, socioeconomic status, not sleeping under a bed net, coverage rate with bed nets and environmental factors (e.g., normalized difference vegetation index, rainfall, land surface temperature and living in close proximity to standing water) were significantly associated with the risk of P. falciparum parasitaemia. After accounting for spatial correlation, age, bed net coverage, rainfall during the main malaria transmission season and distance to rivers remained significant covariates. Conclusion. It is argued that a massive increase in bed net coverage, particularly in villages in close proximity to rivers, in concert with other control measures, is necessary to bring malaria endemicity down to intermediate or low levels
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