Miracle-dz/UniFAR-FTUs huggingface dataset:
Optimal management of peripancreatic fluid collection with postoperative pancreatic fistula after distal pancreatectomy: Significance of computed tomography values for predicting fluid infection

Peripancreatic fluid collections have been observed in most patients with postoperative pancreatic fistula after distal pancreatectomy; however, optimal management remains unclear. This study aimed to evaluate the management and outcomes of patients with postoperative pancreatic fistula and verify the significance of computed tomography values for predicting peripancreatic fluid infections after distal pancreatectomy. We retrospectively investigated 259 consecutive patients who underwent distal pancreatectomy. Grade B postoperative pancreatic fistula patients were divided into two subgroups (B-antibiotics group and B-intervention group) and outcomes were compared. Predictive factor analysis of peripancreatic fluid infection was performed. Clinically relevant postoperative pancreatic fistulas developed in 88 (34.0%) patients. The duration of hospitalization was significantly longer in the B-intervention (n = 54) group than in the B-antibiotics group (n = 31; 41 vs. 17 days, p < 0.001). Computed tomography values of the infected peripancreatic fluid collections were significantly higher than those of the non-infected peripancreatic fluid collections (26.3 vs. 16.1 Hounsfield units, respectively; p < 0.001). The outcomes of the patients with grade B postoperative pancreatic fistulas who received therapeutic antibiotics only were considerably better than those who underwent interventions. Computed tomography values may be useful in predicting peripancreatic fluid collection infection after distal pancreatectomy.
Different Approaches to Confronting the Biological Epidemic; Prevention Tools with an Emphasis on COVID-19: A Systematized Study

Background: The World Health Organization has identified COVID-19 as a public health emergency and is urging governments to stop the virus transmission by adopting appropriate policies. In this regard, authorities have taken different approaches to cutting the chain or controlling the spread of the disease. The aim of this study was to determine the approaches to biological epidemics and related prevention tools with emphasis on COVID-19 disease. Methods: The present study was a systematize study of publications related to the prevention strategies for Covid-19 disease. The study was carried out based on the PRISMA guidelines, CASP and AACODS. The data resources included ISI/WOS, PubMed, Scopus, science direct, Ovid and ProQuest. WHO website, published reports of countries, as well as the Worldometer website were evaluated. The time-frame of the study was from 1 December 2019 to 30 May 2020. Results: The study findings showed that in order to confronting the COVID-19 epidemic, in general, there are three approaches of “mitigation”, “active control”, and “suppression” and four strategies of “quarantine”, “isolation”, “social distance”, and “lockdown” in both individual and social dimensions to deal with epidemics. Selection and implementation of each approach requires specific strategies and has different effects when it comes to controlling and inhibiting the disease. Conclusion: One possible approach to control the disease is to change individual behavior and lifestyle. In addition to prevention strategies, use of masks, observance of personal hygiene principles such as regular hand washing and non-contact of contaminated hands with the face, as well as observance of public health principles such as sneezing and coughing etiquettes, safe extermination of personal protective equipment must be strictly observed. The use of the previous experiences in the world, along with the current experiences of countries, can be very helpful in choosing the accurate approach for each country in accordance with the characteristics of that country and lead to the reduction of possible costs at the national and international levels.
Reliability and Validity of the Greek Version of the Professional Quality of Life Scale (ProQOL-V)

Background: Compassion constitutes a central element of all health and social care professions. The Professional Quality of Life Questionnaire is the most widely used instrument to measure compassion fatigue worldwide. Objective: The aim of this study was to provide evidence for the reliability and the validity of ProQOL-V for Greece. Methods: A total of 261 nurses selected by convenience sampling and required to complete the ProQOL and Secondary Traumatic Stress Scale (STSS). The reliability and validity of the scale was evaluated by correlation analysis, t-test, and confirmatory factor analysis. Results: The overall Cronbach’s a for Compassion Satisfaction was 0.87 ranging from 0.86 to 0.87 with individual items deleted, for Burn-out was 0.73 ranging from 0.71 to 0.79 with individual items deleted and for Secondary Traumatic Stress was 0.83 ranging from 0.81 to 0.84 with individual items deleted. Additionally, the Pearson correlation r for Compassion Satisfaction, Burn-out and Secondary Traumatic Stress showed strong correlations between test-retest measurements (p<0.001). Secondary Traumatic Stress and Burn-out were positively correlated to STSS as expected (r=0.69 for Secondary Traumatic Stress and r=0.57 for Burn-out) implying sufficient convergent validity. In contrast, Compassion Satisfaction was negatively correlated to STSS as expected (r=-0.25) implying sufficient divergent validity. Goodness-of-fit indices included TLI=0.856, CFI=0.895, and RMSEA=0.063 supporting the construct validity of the three-dimensional instrument. Conclusion: ProQOL-V has good reliability and validity among nurses in Greece. The implications of relevant future research are important in relation to the health care management and the support and continuous education of front-line health and social care workers.
Effect of radiofrequency and pelvic floor muscle training in the treatment of women with vaginal laxity: A study protocol

Background Vaginal laxity is an underreported condition that negatively affects women’s sexual function and their relationships. Evidence-based studies are needed to better understand this complaint and to discuss its treatment options. Thus, we present a study protocol to compare the effect of radiofrequency and pelvic floor muscle training in the treatment of women with complaints of vaginal laxity. Methods/Design This is a prospective, parallel-group, two-arm, randomized clinical trial (Registry: RBR-2zdvfp–REBEC). Participants will be randomly assigned to one of the two groups of intervention (Radiofrequency or Pelvic Floor Muscle Training). The study will be performed in the Urogynecology outpatient clinic and in the physiotherapy outpatient clinic at the State University of Campinas–UNICAMP and will include women aged ≥ 18 years and with self-reported complaints of vaginal laxity. Participants will be assessed at baseline (pre-intervention period) and will be followed up in two periods: first follow-up (30 days after intervention) and second follow-up (six months after intervention). Expected results The results of this randomized clinical trial will have a positive impact on the participants’ quality of life, as well as add value to the development of treatment options for women with complaints of vaginal laxity. Trial registration Registry: RBR-2zdvfp–Registro Brasileiro de Ensaios Clínicos–REBEC (19/02/2020).
Incidence and predictors of postpartum depression among postpartum mothers in Kuala Lumpur, Malaysia: A cross-sectional study

Postpartum depression (PPD) is one of the mental health complications that may arise following childbirth. This cross-sectional study explores the association between socioeconomic factors and PPD literacy with PPD incidence in 350 participants (mean age: 30.58±4.72 years) at one to six months postpartum, who attended the Kuala Lumpur Health Clinic from May to October 2020. PPD incidence and literacy were assessed using the validated Malay versions of the Edinburgh Postpartum Depression Scale (EPDS) and the Postpartum Depression Literacy Scale (PoDLiS), respectively. The participants’ socioeconomic characteristics were collected using a self-administered questionnaire. Chi-square tests were performed to determine the association between these factors and PPD incidence. Binary logistic regression models were used to determine the odds ratios (OR). The incidence of postpartum depressive symptoms was 14.29%. Those with low household income were twice likely to have PPD symptoms (OR:2.58, 95% CI:1.23–5.19; p = 0.01) than those with higher incomes. Unemployment (i.e., participants who were housewives/homemakers) was associated with higher PPD incidence (Χ2(2, 350) = 6.97, p = 0.03), but it was not a significant PPD predictor. In conclusion, PPD incidence in the sample of Kuala Lumpur postpartum mothers is significantly associated with low household income. Other socioeconomic characteristics, including PPD literacy, were not significant predictors of PPD incidence.
Uncovering the stability status of the reputed reference genes in breast and hepatic cancer cell lines

Accurate and reliable relative gene expression analysis via the Reverse Transcription-quantitative Real Time PCR (RT-qPCR) method strongly depends on employing several stable reference genes as normalizers. Utilization of the reference genes without analyzing their expression stability under each experimental condition causes RT-qPCR analysis error as well as false output. Similar to cancerous tissues, cancer cell lines also exhibit various gene expression profiles. It is crucial to recognize stable reference genes for well-known cancer cell lines to minimize RT-qPCR analysis error. In this study, we showed the expression level and investigated the expression stability of eight common reference genes that are ACTB, YWHAZ, HPRT1, RNA18S, TBP, GAPDH, UBC, and B2M, in two sets of cancerous cell lines. One set contains MCF7, SKBR3, and MDA-MB231 as breast cancer cell lines. Another set includes three hepatic cancer cell lines, including Huh7, HepG2, and PLC-PRF5. Three excel-based softwares comprising geNorm, BestKeeper, and NormFinder, and an online tool, namely RefFinder were used for stability analysis. Although all four algorithms did not show the same stability ranking of nominee genes, the overall results showed B2M and ACTB as the least stable reference genes for the studied breast cancer cell lines. While TBP had the lowest expression stability in the three hepatic cancer cell lines. Moreover, YWHAZ, UBC, and GAPDH showed the highest stability in breast cancer cell lines. Besides that, a panel of five nominees, including ACTB, HPRT1, UBC, YWHAZ, and B2M showed higher stability than others in hepatic cancer cell lines. We believe that our results would help researchers to find and to select the best combination of the reference genes for their own experiments involving the studied breast and hepatic cancer cell lines. To further analyze the reference genes stability for each experimental condition, we suggest researchers to consider the provided stability ranking emphasizing the unstable reference genes.
Computer-assisted instruction versus inquiry-based learning: The importance of working memory capacity

The Covid-19 pandemic has led millions of students worldwide to intensify their use of digital education. This massive change is not reflected by the scant scientific research on the effectiveness of methods relying on digital learning compared to other innovative and more popular methods involving face-to-face interactions. Here, we tested the effectiveness of computer-assisted instruction (CAI) in Science and Technology compared to inquiry-based learning (IBL), another modern method which, however, requires students to interact with each other in the classroom. Our research also considered socio-cognitive factors–working memory (WM), socioeconomic status (SES), and academic self-concept (ASC)–known to predict academic performance but usually ignored in research on IBL and CAI. Five hundred and nine middle-school students, a fairly high sample size compared with relevant studies, received either IBL or CAI for a period varying from four to ten weeks prior to the Covid-19 events. After controlling for students’ prior knowledge and socio-cognitive factors, multilevel modelling showed that CAI was more effective than IBL. Although CAI-related benefits were stable across students’ SES and ASC, they were particularly pronounced for those with higher WM capacity. While indicating the need to adapt CAI for students with poorer WM, these findings further justify the use of CAI both in normal times (without excluding other methods) and during pandemic episodes.
Prevalence of water pipe smoking and associated risk factors among female adolescents

BACKGROUND: The prevalence of water pipe smoking is increasing among young people, but there are limited data on its use among adolescents in Iran. The aim of this study is to investigate the prevalence of WP smoking and associated risk factors among female adolescents in Western Iran. MATERIALS AND METHODS: This cross-sectional study was conducted in schools. It included 1302 middle school (48.1%) and high school (51.9%) female students (grades 7–12) recruited through stage random sampling and conducted in 2019 in the western city of Kermanshah, Iran. The data collection tool was a researcher-made questionnaire. Logistic regression analyses and descriptive statistics were executed using SPSS version 22. RESULTS: The mean (standard deviation) ages of the students and the ages when the participants started WP smoking were 15.22 ± 1.85 and 13.64 (1.64), respectively. Nearly 32.2% had a single experience of WP smoking during their lifetime and 20.4% were current consumers of WP. Most of the subjects smoked WPs at their friends’ home (45.8%) and with their friends (47.4%). The significantly important factors that affect WP smoking in these age groups are the father's and mother's occupation, family size, living with others, father's education, having a friend who smokes WPs, friends’ encouragement to smoke WP, and being in a family that smoke WPs. CONCLUSIONS: Considering the increasing popularity of WP among adolescent females and its increasing prevalence, the results showed that Water pipe smoking with friends played a key role in WP smoking among female adolescents. There is a need to design interventional studies to increase people's skills and to design and implement programs to prevent water pipe.
Relationship between psychological capital and quality of life among seniors working after retirement: The mediating role of hope of success

Introduction As a result of the increasing average human life expectancy and the related population growth in many countries, research on factors increasing seniors’ quality of life is becoming particularly important. An event critical for seniors’ functioning is retirement. A concept reflecting the dynamics of seniors’ personality associated with the changes taking place in their life situation is psychological capital. This concept was identified as a factor that is constituted by four personality variables changing because of experiences: self-efficacy, optimism, psychological resilience, and hope of success. An interesting issue is the relationship between psychological capital and quality of life in seniors working after retirement. Aim The aim of this paper was to analyze the relationship between psychological capital (self-efficacy, dispositional optimism, psychological resilience) and quality of life in seniors working after retirement, as well as the mediating role of hope of success in this relationship. Methods A total of 304 seniors—103 women and 201 men—participated in the study. The mean age was 65.24. The Quality-of-Life Scale (CASP-19), the Polish adaptation of Life Orientation Test (LOT-R), the Generalized Self-Efficacy Scale (GSES), the Hope of Success Questionnaire (KNS), and polish adaptation of the Resilience Assessment Scale (SPP-25) were employed in the research. A mediation model was applied to explore the pathway from psychological capital via hope of success to quality of life. Results The tested components of psychological capital correlate positively with working senior citizens’ quality of life. The mediating role of hope of success between psychological capital and quality of life was confirmed. The study presented three mechanisms in which hope of success strengthens the relationships between the components of psychological capital and working senior citizens’ quality of life. Conclusions The mediating role of hope of success between the remaining components of psychological capital and quality of life confirms pattern posited in the COR theory, namely, that increasing one resource leads to the activation of others, which results in a spiral of personal resources being generated. One the one hand, people who have greater resources have a greater capacity for generating spirals of gains. One the other hand, individuals who lack personal resources are both more exposed to losing them and less capable of starting a spiral of gains in resources.
Ride-Through Technique for PMSG Wind Turbines using Energy Storage Systems

This paper deals with a ride-through technique for permanent-magnet synchronous generator (PMSG) wind turbine systems using energy storage systems (ESS). A control strategy which consists of current and power control loops for the energy storage systems is proposed. By increasing the generator speed, some portion of the turbine power can be stored in the system inertia. Therefore, the required energy capacity of the ESS can be decreased, which results in a low-cost system. In addition, the power fluctuations due to wind speed variations can be smoothened by controlling the ESS appropriately. The effectiveness of the proposed method is verified not only by the simulation results for a 2[MW] PMSG wind turbine system, but also by the experiment results for a reduced-scale turbine simulator.
Effect of total-etch and self-etch adhesives on the bond strength of composite to glass-ionomer cement/resin-modified glass-ionomer cement in the sandwich technique – A systematic review

The success of the sandwich technique depends on the bond strength of composite to glass-ionomer cement (GIC)/resin-modified glass-ionomer cement (RMGIC). Currently used adhesives employ the total-etch and the self-etch techniques. The total-etch system is technique sensitive, whereas the self-etch system is popular for its ease of use. The aim of this systematic review is to compare the effect of total-etch and self-etch adhesives (SEAs) on the bond strength of composite to GIC/(RMGIC) in the sandwich technique. A literature search was conducted using electronic databases (PubMed, Web of Science, Ebscohost, and Scopus) limiting the year of publications from January 1, 2000, to September 30, 2018, to identify the relevant studies. All the cross-references of the selected studies were also screened. In vitro studies on extracted human teeth were selected. A total of 10 articles were included in this review. A conclusion was drawn that SEAs when used in the sandwich technique resulted in greater bond strength in comparison to total-etch adhesives. Moreover, increased bond strength was achieved when the primer was employed on unset GIC as compared to set GIC. Furthermore, the application of SEAs over uncured RMGIC (co-curing technique) resulted in better bond strengths as compared to their application over cured RMGIC.
Fuzzy Logic Intelligent Systems and Methods in Midwifery and Obstetrics

Background: Fuzzy logic can be used to model and manipulate imprecise and subjective knowledge imitating the human reasoning. Objective: The aim of this systematic review was to analyze research studies pertaining to fuzzy logic and fuzzy intelligent systems applications in midwifery and obstetrics. Methods: A thorough literature review was performed in four electronic databases (PubMed, APA PsycINFO, SCOPUS, ScienceDirect). Only the papers that discussed fuzzy logic and fuzzy intelligent systems applications in midwifery and obstetrics were considered in this review. Selected papers were critically evaluated as for their relevance and a contextual synthesis was conducted. Results: Twentynine papers were included in this systematic review as they met the inclusion and methodological criteria specified in this study. The results suggest that fuzzy logic and fuzzy intelligent systems have been successfully applied in midwifery and obstetrics topics, such as diagnosis, pregnancy risk assessment, fetal monitoring, bladder tumor, etc. Conclusion: This systematic review suggests that fuzzy logic is applicable to midwifery and obstetrics domains providing the means for developing affective intelligent systems that can assist human experts in dealing with complex diagnosis and problem solving. However, its full potential is not yet been examined, thus presenting an opportunity for further research.
Gas Turbine With Intermediate Heat Exchanger for Flight Application

High power/weight ratio and low SFC are the most important requirements for an airborne engine. This may be achieved by a gas turbine engine with an intermediate heat exchanger, combined with a double-decked compressor-turbine design. In this engine, the specific fuel consumption is minimal at 70% of maximum power output for best fuel economy in helicopter engines. The additional weight, due to its design, is compensated by fuel saved in less than one hour flight for a 926 kW cruise power engine.Copyright © 1990 by ASME
Web-Based Project Management Framework for Dredging Projects

This paper describes a project management framework for dredging projects (PMFD) developed to facilitate the performance of dredging projects. The framework uses established project management techniques, a Web-based project management system (WPMS) environment, the Project Management Institute's project management body of knowledge project life-cycle concept, and a project delivery system commonly used to procure dredging projects to analyze and optimize project management processes in dredging operations. These processes are intended to be aligned with the project contracting organization's business rules to create a practical framework to manage the project. The presented framework addresses WPMS limitations reported in previous research. The paper describes the principles of applying the PMFD to the management of dredging projects. Finally, the paper presents a case study describing a specific project scenario to illustrate the application of the principles and provides a cost-benefit analysis for the implementation of the WPMS. This presented framework can be adapted to manage other types of construction projects, and it may be implemented by a project owner who supervises and controls an entire project life cycle. DOI: 10.1061/(ASCE)ME.1943-5479.0000070. © 2012 American Society of Civil Engineers.
Principles of power electronics

1. Introduction. 2. Form and Function: An Overview. 3. Introduction to Rectifier Circuits. 4. Bridge and Polyphase Rectifier Circuits. 5. Phase-Controlled Converters. 6. High-Frequency Switching dc/dc Converters. 7. Isolated High-Frequency dc/dc Converters. 8. Variable-Frequency dc/ac Converters. 9. Resonant Converters. 10. ac/ac Converters. 11. Dynamics and Control: An Overview. 12. State-Space Models. 13. Linear and Piecewise Linear Models. 14. Feedback Control Design. 15. Components: An Overview. 16. Review of Semiconductor Devices. 17. Power Diodes. 18. Power Transistors. 19. Thyristors. 20. Magnetic Components. 21. Ancillary Issues: An Overview. 22. Gate and Base Drives. 23. Thyristor Commutation Circuits. 24. Snubber Circuits and Clamps. 25. Thermal Modeling and Heat Sinking.