Prediction of drag and lift forces of a high-speed vessel at full scale by CFD-based GEOSIM method

In this study, it was aimed to obtain an accurate extrapolation method to compute lift and drag forces of high-speed vessels at full-scale by using CFD (Computational Fluid Dynamics) based GEOSIM (GEOmetrically SIMilar) method which is valid for both fully planing and semi-planing regimes. Athena R/V 5365 bare hull form with a skeg which is a semi-displacement type of high-speed vessel was selected with a model family for hydrodynamic analyses under captive and free to sinkage/trim conditions. Total drag and lift forces have been computed for a generated GEOSIM family of this form at three different model scales and full-scale for Fr = 0.8 by an unsteady RANS (Reynolds Averaged Navier–Stokes) solver. k–ε turbulence model was used to simulate the turbulent flow around the hulls, and both DFBI (Dynamic Fluid Body Interaction) and overset mesh technique were carried out to model the heave and pitch motions under free to sinkage/trim condition. The computational results of the model family were used to get “drag-lift ratio curve” for Athena hull at a fixed Fr number and so the corresponding results at full scale were predicted by extrapolating those of model scales in the form of a non-dimensional ratios of drag-lift forces. Then the extrapolated full-scale results calculated by modified GEOSIM method were compared with those of full-scale CFD and obtained by Froude extrapolation technique. The modified GEOSIM method has been found to be successful to compute the main forces (lift and drag) acting on high-speed vessels as a single coefficient at full scale. The method also works accurately both under fully and semi-planing conditions.

Internet Addiction in Mexican Medical Students and Family Functioning

Introduction: Internet addiction is a deterioration in the control of the Internet, manifested in various cognitive, behavioral, and physiological symptoms. Internet addiction affects family functioning by generating problems in relationships with family members. The disturbed functioning of the family also makes individuals vulnerable to internet addiction. Objective: To determine the relationship between family functioning and internet addiction. Methods: A descriptive, cross-sectional, survey-type observational study was carried out on 358 students of the Faculty of Medicine of the Universidad Autonoma de Nuevo Leon, Mexico. to measure the presence of internet addiction. Result: A prevalence of 28% for internet addiction was found in medical students. Conclusions: This research found that following Olson's model, family functioning is not significantly related to internet addiction. The overall prevalence of internet addiction was higher than that found in other countries. Since the family plays an essential role in preventing internet addiction, it should be considered to reduce excessive Internet use.

Health extension service utilization and associated factors in East Gojjam zone, Northwest Ethiopia: A community-based cross-sectional study

Introduction Health Extension Program is a preventive, promotive, and basic curative service targeting households to improve the health status of families with the effective implementation of 16 health extension packages. We, therefore, did this study to assess health extension package utilization and associated factors in the East Gojjam zone, Northwest Ethiopia. Methods A community-based mixed cross-sectional study was conducted on households of East Gojjam Zone, from January 1 to April 30, 2020. A multistage sampling procedure was used to select 806 study participants in this study. We used EPI info version 7 for data entry and SPSS version 24 software for cleaning and analysis. Variables having a P-value of less than 0.25 in the bivariate logistic regression analysis were fitted into the multivariable logistic regression model. The 95% confidence interval of odds ratio was computed and a variable having P-value less than 0.05 in the multivariable logistic regression analysis was considered as statistically significant. Results The study showed that 119 (14.8%) respondents have utilized health extension packages. Knowledge health extension package (AOR = 1.84, 95% CI: 1.22, 2.79), residence (AOR = 3.55, 95% CI: 1.99,6.33),visited health post(AOR = 1.63, 95% CI: 1.054,2.50), home visited by health extension worker (AOR = 1,68, 95% CI: 1.025,2.74) and involving in model family training(AOR = 2.10, 95% CI: 1.38,3.215) were significant factors for health extension service utilization. Conclusion The magnitude of health extension service utilization was low since the Ethiopian government recommends 100% health extension service utilization coverage. Knowledge of health extension package, residence, health post-visit, home visit, and model family training were significant factors for health extension service utilization. So expanding the model family training and strict home-to-home visit especially in rural areas may increase the health extension package utilization.

Uncovering of cytochrome P450 anatomy by SecStrAnnotator

Protein structural families are groups of homologous proteins defined by the organization of secondary structure elements (SSEs). Nowadays, many families contain vast numbers of structures, and the SSEs can help to orient within them. Communities around specific protein families have even developed specialized SSE annotations, always assigning the same name to the equivalent SSEs in homologous proteins. A detailed analysis of the groups of equivalent SSEs provides an overview of the studied family and enriches the analysis of any particular protein at hand. We developed a workflow for the analysis of the secondary structure anatomy of a protein family. We applied this analysis to the model family of cytochromes P450 (CYPs)—a family of important biotransformation enzymes with a community-wide used SSE annotation. We report the occurrence, typical length and amino acid sequence for the equivalent SSE groups, the conservation/variability of these properties and relationship to the substrate recognition sites. We also suggest a generic residue numbering scheme for the CYP family. Comparing the bacterial and eukaryotic part of the family highlights the significant differences and reveals a well-known anomalous group of bacterial CYPs with some typically eukaryotic features. Our workflow for SSE annotation for CYP and other families can be freely used at address https://sestra.ncbr.muni.cz.

Evaluation of Intestinal Parasite Infection in Low and High Coverage of Graduated Households, Northwest Ethiopia: A Comparative-Based Crosssectional Study

Intestinal parasite infections are widely distributed and affect various segments of the population in Ethiopia as in many developing countries. The government launched an innovative program called Health Extension Program to increase the coverage of primary health care services, mainly by producing model households using model-family training. The aim of this study was to evaluate the intestinal parasite infection in low and high coverage of graduated households. Method. A community-based crosssectional study was conducted from February to June, 2019. A total of 478 participants were enrolled in this study by using a multistage sampling technique. Data were collected by using pretested and semistructured questionnaire. Five grams of stool specimen was collected, and samples were processed using a direct wet mount and Kato Katz technique. Data were coded, entered, and cleaned using statistical package for social science (SPSS) version 20. A Chi-square test was employed to compare the two groups. P value < 0.05 were taken as statistically significant. Result. The prevalence rate of IPIs was 39% and 20.5% in LCGHH and HCGHH, respectively. A. lumbricoides was the predominant parasite, detected in 14.6% and 8.8% followed by S. mansoni 6.3% and 2.1% in LCGHH and HCGHH districts, respectively. LCGHH had significantly higher prevalence of A. lumbricoides, S. mansoni, and hookworm infections than the HCGHH district ( P < 0.05 ). Thirteen (18.8%) study participants in LCGHH and four (11.7%) in HCGHH showed heavy infection with the four common soil-transmitted helminths (A. lumbricoides, S. mansoni, hookworm, and T. trichiura). Among study participants who were positive for S. mansoni, 53.3% in LCGHH and 20% in HCGHH had heavy infection for the Kato thick smear used. Conclusion. The prevalence of IPIs is significantly higher in LCGHH than in the HCGHH district. Producing more model households by giving model family training to nonmodel households and strengthening the information, education, and communication package are crucial in the implementation of the HEP to decrease the prevalence of IPIs especially in LCGHH districts.

Examining the Feasibility and Fit of Family Implemented TEACCH for Toddlers in Rural Settings

Many autism-focused early intervention (EI) models have not yet been adopted by community-based providers in rural settings due to fit and feasibility when working within the Part C model. Family Implemented TEACCH for Toddlers (FITT, based on the University of North Carolina TEACCH Autism Program) is a research-based, Part-C compatible, EI model incorporating parent-coaching and naturalistic strategies with early evidence of efficacy in rural communities. Its use by rural community providers has not yet been examined. Thus, in this multiple baseline study, rural EI professionals ( n = 3) working with caregivers and their toddlers with autism spectrum disorder (ASD) were provided training and weekly coaching on the use of the FITT model and parent-coaching strategies. The implementation of FITT and parent-coaching strategies were measured, and social validity information was gathered from participants. Results indicate that FITT is both feasible to implement, as demonstrated by provider implementation, and acceptable to both EI providers and caregivers.

mvClaim : an R package for multivariate general insurance claims severity modelling

The mvClaim package in R provides flexible modelling frameworks for multivariate insurance claim severity modelling. The current version of the package implements a parsimonious mixture of experts (MoE) model family with bivariate gamma distributions, as introduced in Hu et al., and a finite mixture of copula regressions within the MoE framework as in Hu & O’Hagan. This paper presents the modelling approach theory briefly and the usage of the models in the package in detail. This package is hosted on GitHub at https://github.com/senhu/.

PERAN PERAWAT DIMASA PANDEMI COVID 19

COVID-19 merupakan penyakit yang menular sehingga diperlukan perawat khusus untuk memberikan asuhan keperawatan. Perawat sebagai tenaga kesehatan yang paling sering kontak dengan pasien Covid-19 selama asuhan keperawatan dilakukan. Kecemasan, ketakutan perawat akan resiko tertularnya virus Covid-19 dapat melahirkan sikap dan perilaku perawat yang tidak profesional dalam memberikan asuhan keperawatan kepada pasien. Penelitian ini bertujuan mengidentifikasi pengalaman perawat selama merawat pasien terinfeksi Covid-19. Hasil penelitian menemukan empat tema utama yaitu pengetahuan tentang perawatan Covid-19, motivasi perawat, Kondisi psikologis perawat selama merawat pasien, upaya mencegah penularan dan Peran perawat dalam Memberikan Asuhan keperawatan yang dilakukan perawat ke keluarga pasien Covid-19. Hasil penelitian ini menyimpulkan bahwa perlunya penelitian Penerapan Model Family-Centered Nursing Terhadap Pelaksanaan Tugas Kesehatan Keluarga Dalam Pencegahan penularan Covid-19.

Family Health Education sebagai Pencegahan Penularan Covid-19 pada Keluarga Dengan Komorbid Diabetes Mellitus

AbstrakCovid-19 adalah penyakit yang saat ini menjadi permasalahan global karena penularannya yang sangat masif. Penyakit diabetes mellitus merupakan penyakit yang sangat rentan terpapar atau beresiko tertular Covid-19 yang banyak terjadi di masyarakat. Penerapan protokol kesehatan yang ketat adalah upaya untuk mencegah penularan Covid-19. Keluarga memiliki peran yang penting dalam memberikan pengetahuan, kesadaran dan memperbaiki perilaku kesehatan pada anggota keluarganya. Tujuan penelitian adalah untuk mengetahui model family health education terhadap penerapan protokol kesehatan pencegahan penularan Covid-19 pada klien dengan komorbid diabetes mellitus. Penelitian eksprerimental ini menggunakan one group pretest-postest design. Populasi penelitian adalah keluarga yang memiliki anggota penderita DM. Sampel penelitian sebanyak 31 orang di Desa Sumberwaru Kecamatan Sukowono Kabupaten Jember yang diambil secara Nonprobability purposive sampling. Data dianalisis menggunakan Paired T-Test dengan derajat signifikasi 95%. Hasil penelitian mendapatkan rata-rata penerapan protokol kesehatan pencegahan penularan Covid-19 sebelum intervensifamily health education adalah 35,32 dan setelah intervensi sebesar 41,71 (terjadi peningkatan sebesar 6,39). Ada perbedaan signifikan dari sebelum dan sesudah intervensi (P < 0,05). Model family health education dapat meningkatkan penerapan protokol kesehatan pencegahan penularan covid 19 pada keluarga dengan komorbid diabetes mellitus. Kata kunci: family health education, protokol kesehatan, pencegahan covid-19, komorbid diabetes mellitus AbstractCovid-19 has become a global problem currently because of its massive transmission. Diabetes mellitus comorbid disease was a risk factor for Covid-19. The implementation of strict health protocols was an effort to prevent the transmission of Covid-19. Family has an important role in providing knowledge, awareness and improving health behavior to family members. The aim of the study was to determine the effect of the family health education model on health protocols to prevent transmission of covid 19 in clients with comorbid diabetes mellitus. This experimental research used one group pretest-postest design. The population was family that has members with DM. The sample size of the research was 31 people in Sumberwaru Village, Sukowono, Jember taken by nonprobability purposive sampling. Data were analyzed using Paired T-Test. The results found that the implementation of health prevention of Covid-19 transmission before the intervention was 35.32 and after the intervention was 41.71 (an increase of 6.39). There was a significant difference before and after the intervention (P <0.05). So, family health education model can improve the application of health protocols to prevent transmission of Covid-19 in family with comorbid diabetes mellitus. Keywords: family health education,health protocols, covid-19 prevention, diabetes mellitus comorbid