bluuebunny/crossref_metadata_2025 huggingface dataset:
STUDY OF THE EFFECT OF FEED PRESSURE AND NOZZLE CHANNEL CROSS-SECTIONS ON FUEL SUPPLY PROCESSES IN GAS-DIESEL LOW-SPEED TWO-STROKE LOW-PRESSURE ENGINES
Authors: Marchenko A.P. , Bilousov A.P. , Savchuk V.P. , Verbovsʹkyy V.S. , Rybalchenko N.E.
Published: November 2021

The use of gas fuels for marine two-stroke low-speed internal combustion engines is considered by the International Maritime Organization as the main tool for implementing the program adopted in 2018 to reduce greenhouse gas emissions by half by 2050 compared to 2008. In this regard, the world's leading manufacturers of this type of engines are actively engaged in research and development work aimed at developing, designing, manufacturing and putting them into operation. In this class of engines, there are a number of limitations that do not allow the existing experience of converting four-stroke marine engines to gas fuel to be applied to them. In this regard, each manufacturer develops its own approaches to solving this problem. As a result, two fundamentally different approaches were outlined - this is the supply of gas fuel directly to the working cylinder at the beginning and at the end of the compression stroke. Each of these methods has its own advantages and disadvantages. Earlier, the authors showed that in addition to the already implemented technical solutions, other approaches can be used related to the supply of gas fuel into the working cylinder under a pressure of 4.0...6.0 MPa, which allow combining the advantages of both methods implemented in practice and significantly reduce their inherent disadvantages. In particular, reducing the residence time of the gas-air mixture in the working cylinder of the engine during the compression stroke is an effective method of combating knocking combustion that occurs in low-pressure engines. In turn, this time depends on the pressure under which the gas fuel is supplied to the gas supply module and on the characteristics of its outflow through the flow path of this device. This article is devoted to the study of the influence of the design features of the flow path on the formation of the trajectories of gas fuel movement and the parameters of its outflow from the gas module to the working cylinder under conditions of changing back pressure.
DETERMINATION OF THE COMPRESSION STRENGTH RP OF MULTILAYER PLATES MADE OF SLAGOSITALS
Authors: Zdorenko V. , Zabiiaka N. , Sebko K. , Gorbunova O.
Published: November 2021

The methodology of creating multifunctional acoustic automated devices has been further developed, it is based on the construction of simple algorithms for transforming and processing signals of measuring instruments. A differential acoustic method for controlling the physical and mechanical parameters of multilayer plates made of slag glass-ceramics has been investigated. A structural diagram of an automated device for measuring acoustic control of the ultimate compressive strength Rр of a controlled slag glass-ceramics plate is proposed. The option of automation of the measurement process considered in the article makes it possible to carry out measuring control of the strength characteristics for a relatively short period of time and by averaging the results of measurements of the physical and mechanical parameters of slag glass-ceramic plates, leads to a decrease in the values of random measurement errors and thereby contributes to an increase in the accuracy of measurements of physical and mechanical parameters of slag glass-ceramics products. The values of the relative increments of the attenuation coefficient ∆ƞ23/ƞ4were obtained, while the ranges of the values of the attenuation coefficient of a transmission of various waveforms of the piezoelectric transducer correspond to the ranges of the compressive strength Rр of the test sample. At the same time, the control of the strength of the material Rр at multiple frequencies is due to the fact that even a slight change in the geometric parameters of the slag glass-ceramics slab leads to a change in the generalized parameters of the universal transformation functions of the measuring differential acoustic devices, which are associated with the physical and mechanical characteristics of the controlled material of the sample The proposed two-parameter differential acoustic control method allows to  keep in mind the linkage between temperature and mechanical parameters: the unequal distribution of the temperature along the length of the sample and the uneven distribution deformation  of temperature with the localization of this plastic component in the middle part of the slag glass-ceramics plate, which is most significantly affected by temperature and, as a consequence, is subject to gradual destruction.
FORMULATION OF TOOL WEAR LAW WHEN CUTTING POLYMER COMPOSITES
Authors: Khavin G.
Published: November 2021

Numerous experimental studies in the field of mechanical processing of composite materials for individual materials and tools made it possible to formulate particular models for describing tool wear, changing its microgeometry during operation and predicting durability. There are significant difficulties in measuring current wear and recalculation in mathematical models, since they include a large number of parameters. This does not allow for simple technical control of cutting edge wear and predicting tool life. The formulation of the wear-contact problem of the tool tip and the material interaction during turning of reinforced composite plastics is presented. Based on known studies, it is assumed that wear occurs along the flank of the tool, and is accompanied by an asymmetric change in the geometry of its tip. A model of abrasive wear during sliding of a tool tip rear surface with a polymer composite reinforcement material and fracture products is considered. It is assumed that the wear law is hereditary and there is a linear dependence of the wear rate on the rate of contact interaction and pressure. Shear stresses through the contact pressure and the coefficient of friction nonlinearly depend on the operating time of the tool due to the change due to wear in the geometric shape of the tool and the processing parameters of the product over time. The volumetric wear factor is a tool run time function. It reflects the fact that the interaction of the “tool-workpiece” pair with time should, as it were, forget about the running-in stage, which has a high wear rate, and the fact that the dependence of wear on the load (contact pressure) is characterized by the presence of aftereffect. A simplified relationship is obtained for the wear law under the assumption that there is no change in the coefficient of friction, temperature and contact pressure over time. Ultimately, to describe the wear law and predict the tool life, it is necessary to know a number of empirical constants, the values of which are determined by the change in the microgeometry of the tool tip during interaction during cutting.
RESEARCH OF AMYLOLYTIC ACTIVITY OF CULTURAL LIQUIDS IN BIOTECHNOLOGY OF SYMBIOTIC CROPS МЕDUSOMYCES GISEVII AND ORYZAMYCES INDICI
Authors: Masalitina N. , Bliznjuk O. , Belinska A. , Varankina O. , Krichkovska L.
Published: November 2021

Based on the literature review found that the natural symbionts Medusomyces gisevii and Oryzamyces indici biotechnology are a valuable objects. It is urgent to find ways to impact on it in order to obtain these or other products of its life activity.

At present, it is urgent to search for microorganisms producing enzymes, including amylase. One of the most promising in terms of biological objects is a natural microbial symbiont Medusomyces Gisevii (tea fungus) and Oryzamyces Indici, which, thanks to the not identical, microbiological composition and different growing conditions may have a different composition of metabolites. Studies of the amylolytic activity of the culture liquid Medusomyces Gisevii and Oryzamyces indici with different cultivation periods have been carried out. Cultivation of the fungus was carried out in the laboratory according to the classic method. The optimal concentration of sucrose for Medusomyces Gisevii and Oryzamyces Indici biomass growth was set at 5%. Sucrose concentration of 15% and above is not recommended for use due to inhibition of biomass growth with increasing concentration of carbohydrates in the culture medium. It is established that these symbionts start to show the amylolytic activity already on the 10th day of cultivation cultivation in standard nutrient medium, medium supplemented with 10 % milk and serum-based medium and stores it in the course of the experiment (30 days). Over time the amylolytic activity increases. However, the intensity of metabolism of the microorganisms, the criterion of which is the ratio of the total and exogenous amylase is most pronounced in the early stages of cultivation. It was found that the culture medium of polycultures shows high amylolytic activity. This fact allows us to consider the Medusomyces Gisevii and Oryzamyces Indici inoculum as a promising biotechnological raw material source of amylase enzyme.
Islamic College and Local Culture: Internalization and Integration
Authors: Puspita Fulan , Lessy Zulkipli
Published: November 2021

 This study aims to determine Indonesian Islamic values' integration and internalization in building students’ personalities as teacher candidates. The research method used is a qualitative phenomenological approach. The data source comes from the head of FTIK Salatiga State Institute for Islamic Studies (IAIN), five lecturers, and 25 students. The study concludes: (1) stage of value transaction is conducted in every college activity either inside the class or in the campus environment by considering laws, social regulations, and obligations attached to every student in preparing them to return serving the community and state as well as religion. (2) Stage of the social contract. In this stage, the student has acted by considering that they have certain obligations toward society and certain obligations to them. (3) Trans-internalization stage; students have found values, and they regard them as universal values that influence an individual’s character. In all the steps, the more measures developed will be instilled within the student to take a strong effort and relatively-long enough time to reach the desired outcome.
Actualization of Islam Nusantara Values at Madrasah Qudsiyyah Kudus
Authors: Ihsan Ihsan , Zuhri Achmad , Annas Azwar , Hidayati Hanik
Published: November 2021

This study aims to elucidate the portrait of an educational institution that actualizes Islam Nusantara values in the process of transferring knowledge to the students. This study applied a qualitative approach. Data was collected through interviews and documentation at one madrasah in Kudus City, Central Java, namely Madrasah Qudsiyyah, which is very close to local traditions and culture. This study’s results revealed that the forms of Islam Nusantara values actualization in this institution were generally depicted in the uniform as madrasah identity, teaching materials/references using Javanese, learning methods, activity essences both in routine activities and specific events, and the teachers’ productivity with their scientific specifications; thus, they give nuances that are typical of the archipelago in this madrasah.
Islamic Higher Education Branding in The Coastal Area Perspective of Hermawan Kartajaya’s PDB Triangle Theory
Authors: Sholikah Sholikah , Syukur Fatah , Junaedi Mahfud
Published: November 2021

 This article is a research on brand building strategies in private Islamic colleges in coastal areas, namely the IAINU Tuban and the IAI TABAH Lamongan. The purpose of this study is to analyze the strategies of Islamic colleges in coastal areas in building their institutional brands. This research is a case study using a descriptive qualitative approach. The results of this study are the strategies used by IAINU and IAI TABAH in building a brand in accordance with Hermawan Kertajaya's PDB Triangle strategy: 1) Positioning is clarifying campus icons; 2) Differentiation is making the campus characteristic, IAINU Tuban as a religious social entrepreneur campus and having the character of ahlussunnah wal jama'ah an nahdhiyah. Meanwhile, IAI TABAH Lamongan as a center for the development of Islamic science and competitiveness; 3) Brand is making the motto of each institution. The IAINU Tuban brand is a religious social entrepreneur, and the IAI TABAH brand is superior, religious, competitive.
Implementasi Desain Pembelajaran Al-Quran Hadis Model ADDIE di MTs Assathi' Karas
Authors: Hakim Luthfil , Zainiyati Husniyatus Salamah , Hana Rudy Al , Alimina Siti Farrohah
Published: November 2021

This study aim to answer the ADDIE model design and its application in Al-Qur'an Hadith subjects at MTs Assathi’ Karas. The method used in this research is a case study with a research approach using qualitative methods to obtain information in the form of interview data and documentation about the implementation of the ADDIE model learning design at MTs Assathi’ Karas. The application of the ADDIE model assisted by Autoplay media has gone through five steps: analysis, design, development, implementation, and evaluation. The researchers' findings in this study are that the application of the ADDIE model assisted by Autoplay media can make the learning model more varied and increase students' learning motivation.
Analisis nilai perusahaan pada perusahaan textile dan garmen yang terdaftar di BEI
Authors: Febri Wijaya Muhammad , Ichsanuddin Nur Dhani
Published: November 2021

The purpose of this study is to determine and analyze the effect of capital structure, sales growth, profitability, company size as factors considered by the company on the firm value of textile and garment companies listed on the Indonesia Stock Exchange for the period 2016 – 2019. This study uses quantitative and qualitative methods. using linear regression analysis using the SPSS program as a testing tool. The results of this study indicate that the independent variable, namely capital structure, can contribute to determining firm value. Sales growth cannot contribute in determining the value of the company. Profitability can contribute in determining the value of the company. While the size of the company can contribute to determining the value of the company
Pengembangan bahan ajar berupa e-book pada mata pelajaran akuntansi keuangan kompetensi dasar akuntansi piutang kelas XI berbasis pendekatan saintifik di SMK Yapalis Krian
Authors: Maulidah Rahmah Sylvia , Susilowibowo Joni
Published: November 2021

This research aims to develop e-book teaching materials, analyze the feasibility level of e-books and analyze student responses to e-books. The subjects in this study are financial accounting on the basic competence of accounts receivable accounting. Teaching materials in the form of e-books were developed according to the implementation of the 2013 curriculum based on a scientific approach. The research method used is Research and Development (R&D) with a 4-D model. The validators in the study were 3 lecturers according to the intended field and one teacher who was an expert in financial accounting subjects. The assessment data distributed to the validator comes from the review sheet and then the validation sheet. A total of 20 students of class XI Financial and Institutional Accounting at SMK Yapalis Krian were also one of the respondents. This is to determine the feasibility of teaching materials so that they are suitable for use in the learning process. The product developed produces a very feasible interpretation with an average feasibility recapitulation of 89.49%. From these results, there are several components listed with very feasible interpretations, namely the feasibility of the material 89.89%, the feasibility of language 86.67% and the feasibility of graphics 91.93%. For the average results, students stated that the interpretation was very well understood with a percentage of 88.12%. So this teaching material is suitable for use in the learning process
Perbandingan model problem based learning (PBL) dan model pembelajaran konvensional terhadap hasil belajar IPS terpadu siswa SMP Negeri 6 Welak
Authors: Melita R. Jemalu Maria , Rusno Rusno , Yudiono Udik
Published: November 2021

This study focuses on discussing the results of the analysis of (1) the value of integrated social studies learning outcomes of students who are taught using the Problem based learning (PBL) model, (2) the value of integrated social studies learning outcomes of students who are taught using conventional learning models, (3) comparison of the results of Integrated Social Studies learning students who are taught using the Problem based learning (PBL) model with the value of Integrated Social Studies learning outcomes students who are taught using conventional learning models. This research method is quantitative with a quasi-experimental design. The population of this study was students of class VIII A and VIII B of SMP Negeri 6 Welak 2020/2021, with a total of 50 students (classes VIII A and VIII B each consisted of 25 students). Sampling uses total sampling, so that all members of the population are assigned to be the sample, where class VIII A is assigned to be the experimental class and class VIII B is assigned to be the control class. The treatment of the PBL model was only applied to the experimental class, while the control class was taught by the teacher using a conventional learning model. This research data collection using test technique. Data analysis techniques include normality test, homogeneity test, and Independent Sample T Test. The results of this study conclude: (1) the value of Integrated Social Studies learning outcomes for class VIII students of SMP Negeri 6 Welak who are taught using the Problem based learning (PBL) model is in the 'very good' category; (2) the value of Integrated Social Studies learning outcomes for grade VIII SMP Negeri 6 Welak students who are taught using conventional learning models are in the 'good' category; (3) the value of Integrated Social Studies learning outcomes for students of class VIII SMP Negeri 6 Welak who are taught using the Problem based learning (PBL) model is significantly different from the value of Integrated Social Studies learning outcomes of students who are taught using conventional learning models.
Determinan keputusan pembelian di Shopee: online customer review, brand image dan promosi
Authors: Bima Ilham , Nurfarida Iva Nurdiana , Sarwoko Endi
Published: November 2021

The purpose of this research is to investigate the factors that influence purchasing decisions at Shopee Ninetysix.id seen from online customer reviews, brand image, and promotions. The method used is quantitative with an accidental sampling technique on 112 Ninetysix.id customers. Data collection uses Google Form to fill out the questionnaire, then analysis uses Multiple Linear Regression. The results of the study reveal that purchasing decisions at Shopee are due to considering the online customer reviews of previous consumers, also considering the brand image of the product to be purchased. Promotion is no longer a factor that consumers consider when making purchases at Shopee. Future research can develop a comparative study of purchasing decisions between Shopee and other marketplaces such as Tokopedia or Bukalapak.
Pengaruh E-Promotion, E-WOM dan lokasi terhadap kepuasan konsumen melalui keputusan pembelian sebagai variabel intervening
Authors: Kadi Dian Citaningtyas Ari , Purwanto Hari , Ramadani Linda Dwi
Published: November 2021

The purpose of this study was to determine the effect of E-Promotion, E-WOM and location on consumer satisfaction through purchase decisions as intervening variables. The research used is quantitative research with a sample of 384 respondents. Using a 5-point Likert Scale and Path Analysis was used for analysis and hypothesis testing. The findings of this study indicate that E-Promotion, E-WOM and location have an effect on consumer satisfaction and purchase decisions. While other findings Purchase Decisions act as a mediation of the relationship between E-Promotion, E-WOM and location on consumer satisfaction. For further research, it is possible to enter the buying interest variable.
STUDENTS’ THINKING PROCESSES IN SOLVING OPEN-ENDED PROBLEMS USING ONLINE LEARNING TAKING INTO ACCOUNT THE MATHEMATICAL ABILITY
Authors: Tigas Laila Nurpratiwi  , Rini Setianingsih
Published: November 2021

It is important for a student to be able to solve problems. This study aims to describe students’ thinking processes in solving open-ended problems with online learning reviewed from mathematical abilities. This research is descriptive in nature with a qualitative approach. The subjects of this research consist of three 8th grade students, while the research instruments that were used consist of a mathematical ability test, an open-ended problem test and interview guideline. The results of the study reveal that student with high mathematical abilities meets all indicators of thinking processes, while student with average mathematical ability at the step of understanding the problem, did not carry out of making arguments, at the step of devising a plan he did not carry out the considering thinking process, as well as did not give an argument at the step of looking back. Almost the same as these results, student with low mathematical ability did not carry out the thinking process of remembering and the process of considering, while at the step of looking back, he did not carry out the process of considering and making an argument. Based on these results, it can be concluded that mathematical ability affects a student’s thinking process.
China's effective measures in fighting against COVID-19 and pollutant changes in Wuhan during corresponding periods
Authors: Zhang Fang , Han Yi , Cong Bailin
Published: November 2021

The δ- and λ-variants of COVID-19 are blowing to globle economy, human life and health. The variants put the world in a harsher state. Lockdown is powerful in stopping the spread and infection. We evaluate the lockdown impact on NO2, SO2, O3, PM2.5 and PM10 in Wuhan, which reported the first COVID-19 case. Data before, during and after blokade in year 2020 were all analyzed. Lockdown significantly decreased four of the five pollutants. The decreasing reasons are discussed in social policies, people's living habits and Chinese characters. Wuhan is a transportation hub in central China. Viruses spread through it to all over the country. Although COVID-19 mainly bring bad social effects, people get chance to rethink the value of life: We should sustainablely develop and pursuing spiritual instead of excessive material enjoyment. These ultimately built more stable societies and benefit mankind itself.
Enhanced Refractive Index Sensing Performance Using Hydrothermally Prepared Tricomposite Nanoflower Structure of Ta2O5:Si:Graphite
Authors: Ahmad Farhan , Rahman Shafaque , Tabassum Rana , Hafiz Aurangzeb Khurram
Published: November 2021

We describe a tricomposite nanoflower structure based method to measure the trace amount of refractive index in aqueous solutions. It utilizes tantalum (v) oxide, silicon and graphite to fabricate the tricomposite nanostructures. The tricomposite nanoflower structures were prepared using hydrothermal method where the concentration of (x) of Si in Ta2O5 was varied while the concentration of graphite was kept constant. The concentration of Si in Ta2O5 was measured by Maxwell-Garnett model using volume filling factor 'f' (0≤f≤1) of Si in Ta2O5. The fabricated Ta2O5:Si:Graphite tricomposite nanoflower structures were characterized by SEM, XRD, UV-Vis, PL, FTIR characterization techniques. Then aqueous solution of varying refractive indices were prepared in the range 1.33-1.39 in the already prepared tricomposite nanoflower structure solution. The refractive index measurement were probed by measuring absorption spectra corresponding to each tricomposite nanoflower structures. The performance of the sensor was explored in terms of shift in peak absorption spectra, sensitivity and moreover the limit of detection. The sensor shows sensitivity and limit of detection of (156-260) nm/RIU and 5.14x10-3 RIU respectively. A linear declining of sensitivity was observed within the refractive index range. The sensor possesses a distinguished feature of using tricomposite nanoflower structure which is an efficient method for refractive index measurement.
Malposition of a Nasogastric Feeding Tube Into the Right Pleural Cavity of a Nasopharyngeal Carcinoma Patient After Radiotherapy and Chemotherapy: A Case Report
Authors: Zhang Meng , Zhu Hong , Liu Zheng , Deng Xuexue
Published: November 2021

Background: Nasogastric feeding tube plays an important role in nutrition intake, drug administration, and stomach emptying for patients with severe dysphagia. However, inserting nasogastric tubes is not absolutely harmless. Inadvertent malposition into the trachea or the pleural cavity could result in severe pulmonary complications. Case presentation: We present a case of a 67-year-old patient with a history of nasopharyngeal carcinoma and after the treatment of radiotherapy and chemotherapy. Nasogastric tubes have to be placed for enteral nutrition and avoiding aspiration owing to his severe dysphagia. Unfortunately, he experienced a malposition of nasogastric tube into the right pleura cavity after blind replacement by nurse, whereas the nurses and physicians did not recognize this fault, even the bedside chest radiography (X-ray) was performed twice after intubation. A week later, his condition deteriorated so rapidly that he had to undergo tracheotomy, and the tube was finally found in his trachea.Conclusions: The Nasopharyngeal carcinoma patients after radiotherapy and chemotherapy should be fully evaluated before the nasogastric tube placement whether the blind insertion is suitable or not. Meanwhile, we should not feed immediately unless we have a radiograph to verify the right position of NG tube. Furthermore, careful monitoring of both typical and untypical symptoms of malposition is essential during tube feeding.
Performance Analysis of the Ventilation System for a Surgical Operating Room in Egypt: A Case Study of Mataria Teaching Hospital in Cairo
Authors: Maxemos Philip , abdelsamie abouelmagd , Sadek Hatem
Published: November 2021

The Design of the ventilation system in a hospital operating room plays a very important role, not only in providing thermal comfort and hygienic environment for the patients or staff, but also to ensure the scavenging of any contaminants or airborne particles in the operating room theatre that might leak from outside to the operating room or emitting from patients’ infections. The present study focuses at airflow distribution, temperature, humidity and velocity profiles in a surgical operating room. An operating room inside the Mataria teaching hospital in Cairo (Egypt) has been chosen for the study. Numerical and experimental studies were carried out, where the room was ventilated through laminar flow diffuser system and 100% fresh air. The air was released by four outlet grills: two grills at a low level of the floor and two grills at a high level of the floor. In this work, two cases are investigated. In case I, the air outlets have been installed on one side of the room (which already exists in the hospital); and in Case II, the air outlets have been installed on two opposite sides (the suggested case). The results showed that the proposed modification (Case II) performed better distribution of ventilation than Case I. Therefore, it is recommended to install air outlets in two different side areas inside the room in order to avoid the accumulation of contaminants.
Are Return of Service Bursaries an Effective Investment to Build Health Workforce Capacity? A Qualitative Study of Key South African Policymakers
Authors: Mabunda Sikhumbuzo A. , Durbach Andrea , Chitha Wezile W. , Angell Blake , Joshi Rohina
Published: November 2021

Background: Return-of-service schemes or bursaries are used in South Africa and other nations to publicly fund the training of skilled health professionals in return for the beneficiary agreeing to return to serve in their local provinces on a year-for-year basis. This study aimed to understand how these policies operate across different provinces in South Africa to examine whether they achieved their objectives and identify strengths and areas for improvement in the schemes to inform policymakers in South Africa and internationally. Methods: This research draws on the insights of 15 key South African policymakers from eight of its nine provinces through semi-structured, qualitative interviews. The respondents were interviewed through Microsoft Teams virtual platform, either in pairs (4) or as individuals (7). Data were analysed using inductive, thematic content analysis in NVIVO. Results: Respondents reported that the schemes had resulted in an increase in the number of skilled health professionals and had provided opportunities for study and employment for previously marginalised groups. Formal evaluations of the impact of the schemes were not reported, however, a number of shortcomings with current schemes were identified that were likely limiting their effectiveness. Respondents reported a lack of foresight in the scheme implementation including a bias in the selection of beneficiaries towards medical professionals at the expense of other health workers. Furthermore, failure to plan for practice location when beneficiaries finished training limited the capacity of the schemes to meet the needs of local populations. Monitoring of recipients was limited by loopholes in contract design, decision-making and, poor coordination between departments. Between 5 and 30% of beneficiaries were reported to default their contracts with some not completing their studies, some not returning after completing their internship and others terminating their services before concluding their contracts. Conclusions: Return-of-service schemes have helped in overcoming health professional shortages. However, they haven’t been formally evaluated. Several planning and implementation shortcomings were identified which can be improved to enhance access to healthcare in South Africa.
Quantification of liver fat deposition in obese patients and diabetic patients: a pilot study on the correlation with myocardium and para-apical fat content
Authors: Chen Xi , Li Qing-Ling , Wen Hui-Quan , Shen Li-Shan , Luo Xiao-Wen , Guo Yu , Zhou Bin , Guo Ruo-Mi
Published: November 2021

Background

Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease, and the mortality of NAFLD-related heart diseases is higher than that of NAFLD-related liver diseases. We aimed to quantitatively measure liver, myocardium, and para-apical fat in obese patients and type 2 diabetes mellitus (T2DM) patients with varying degrees of liver fat deposition using IDEAL-IQ technology and to explore the differences in fat content and their correlations.
Materials and Methods

This study retrospectively analyzed the data of 170 patients, including 85 obese patients (50 males, 35 females; average age, 43.5 years) and 85 T2DM patients (45 males, 40 females; average age, 45.5 years). All patients underwent axial T1WI, T2WI, and IDEAL-IQ, the FF map of the right liver lobe, the interventricular septum, the left ventricle, and para-apical fat was used for the quantitative measurement of fat content.
Results

For obese patients, the myocardial fat content was significantly higher in the severe fatty liver group than other liver groups (left ventricle, 3.65% ± 0.80%; interventricular septum, 3.46% ± 0.84%). For T2DM patients, the fat contents of different para-apical fat were positively correlated with fatty liver severity (p < 0.05) and were higher in T2DM patients with fatty liver than in obese patients with fatty liver. For both obese patients and T2DM patients, para-apical fat was only significantly different between the normal liver group (obese patients, 89.10±3.73%; T2DM patients, 89.14±3.80%) and the mild fatty liver group (obese patients, 92.64±2.43%; T2DM patients, 92.42±2.70%) (p < 0.01) and was unrelated to fatty liver severity (p > 0.05).
Conclusion

The results showed myocardial fat content increased with liver fat content, T2DM patients were more likely to have myocardial fat deposition than obese patients, and the fat content trends were consistent in para-apical fat in patients with varying degrees of fatty liver. This study provides an accurate and non-invasive method for the diagnosis and treatment of NAFLD-related heart diseases in obese patients and T2DM patients.
Association Between Obstetric Violence and Symptoms Suggestive of Postpartum Depression
Authors: Paiz Janini Cristina , Castro Stela Maris Jezus , Giugliani Elsa Regina Justo , Ahne Sarah Maria Santos , Dall'Aqua Camila Bonalume , Giugliani Camila
Published: November 2021

Background: Postpartum depression is a common condition in the pregnancy and postpartum cycle. The development of this condition is multifactorial and can be influenced by previous traumas. This study sought to verify whether there is an association between having been exposed to obstetric violence and presenting symptoms suggestive of postpartum depression.Methods: This is a cross-sectional study, with the inclusion of 287 women without complications in childbirth, randomly selected from two maternity hospitals of Porto Alegre, southern Brazil, in 2016. Four weeks after delivery, the postpartum women answered a face-to-face interview about socioeconomic aspects, obstetric history, health history, and childbirth experience (practices and interventions applied) and completed the Edinburgh Postnatal Depression Scale (EPDS). From the perception of women regarding the practices performed in the context of childbirth care, a composite variable was created, using item response theory, to measure the level of obstetric violence. The items that made up this variable were: absence of a companion during delivery, feeling insecure and not welcome, lack of privacy, lack of skin-to-skin contact after delivery, not having understood the information shared with them, and not having felt comfortable to ask questions and make decisions about their care. To define symptoms suggestive of postpartum depression, reflecting on increased probability of this condition, the EPDS score was set at ≥8. Poisson Regression with robust variance estimation was used for modeling.Results: Women who experienced obstetric violence had a higher prevalence of symptoms suggestive of postpartum depression (PR 1.55 95% CI 1.07-2.25), as well as those with a history of mental health problems (PR 2.41 95% CI 1.15-5.05), while higher socioeconomic status (A and B) had an inverse association (PR 0.38 95% CI 0.19-0.78).Conclusions: Symptoms suggestive of postpartum depression seems to be more prevalent in women who have suffered obstetric violence, of low socioeconomic status, and with a history of mental health problems. Thus, qualifying care for women during pregnancy, childbirth and postpartum and reducing social inequalities are challenges to be faced in order to reduce the occurrence of postpartum depression.
New Method for Predicting Casing Wear in Highly Deviated Wells Using Mud Logging Data
Authors: Farab Asgar Eyvazi , Shahbazi Khalil , Hashemi Abdolnabi , Shahbazi Alireza
Published: November 2021

Casing wear is an essential and complex phenomenon in oil and gas wells. Research is being conducted to predict this phenomenon. This study was conducted at a well in southwestern Iran. In this paper, first examine the force exerted on the drill string. Next, the contact force between the drill string and the casing is calculated. Finally, the wear volume and the depth of the wear groove are determined. These calculations were performed using MATLAB and Python software. In addition, due to the high accuracy of coding, mud log data was used to make the results more accurate. It has also been shown that increasing RPM increases the depth of wear and attempts to drill a highly deviated wells as a sliding mode. Finally, compared the results and matched them with the wireline logs recorded from the well.
Modeling Dietary Diversity Practice and Related Factors of Women Reproductive Age at Asaita Woredas, Ethiopia: Community Based Cross-Sectional Study
Authors: Abebe Alebachew , Abebe Alebachew
Published: November 2021

Background
Competent and health diet throughout women reproductive age is crucial for the health of both mother and new born. Dietary diversity is a procurator indicator of women reproductive age nutrient sufficiency.
Objectives
This study was planned to evaluate the dietary diversity exercise and associated factors among women reproductive age at Asaita districts, Afar region, Ethiopia.
Methods
Community based cross-sectional study was done on randomly chosen 422 women under reproductive age at Asaita woredas from February to March, 2020. Data was gathered by using interviewer and 24 hours dietary call up methods. Data entered and analyzed using SPSS version-25. Ordinary logistic regression model was employed to assess factors associated with dietary diversity and potential factors were screened at P-value less than 5%.
Results
The average dietary diversity score was 4.17±1.112SD. Approximately 13.0%, 78.5% and 8.5% of women reproductive age had low, medium and high dietary diversity practice respectively. Family size of male, family size of female, marital status, education level, house with window, having cell phone, bank, refrigerator, television and cart were significant factors associated with women dietary diversity practice at 5% level of significance. The odds of being “low dietary” instead of “high dietary” multiplies by OR=0.665 for each 1-unit increase in family size of female household. Odds of house with window is in low dietary rather than high dietary scores are OR=2.793 times estimated odds for house with no window’s.
Conclusion
Marital status, house with window, having cell phone, owner of bank account and refrigerator had a positive association with dietary diversity whereas family size, education level, having television and cart had a negative relation with women under reproductive age of dietary diversity.
Easier in Practice than in Theory – Experiences of Coaches in Charge of Community-Based Soccer Training for Men with Prostate Cancer: A Descriptive Qualitative Study
Authors: Roed Kickan , Bjerre Eik Dybboe , Midtgaard Julie
Published: November 2021

Background
Evidence suggests that community-based exercise programs and sports participation benefit long-term physical activity adherence and promote health in clinical populations. Recent research shows that community-based soccer can improve mental health and bone health and result in fewer hospital admissions in men with prostate cancer. However, little knowledge exists on what coaches experience, leading to a scarcity of knowledge on how to assist them in promoting and supporting the sustainability of programs. The purpose of this study was to explore the experiences of non-professional soccer coaches in providing community-based soccer training for men with prostate cancer.
Results
We interviewed 13 out of 21 eligible non-professional soccer coaches in charge of delivering the Football Club Prostate Community program, which is community-based soccer training for men with prostate cancer at 12 local soccer clubs across Denmark. Qualitative content analysis, as described by Graneheim and Lundman, was applied to analyze the data using NVivo 12 software. We identified the five following overall categories with 10 subcategories on what the coaches experienced: (1) enabling training of a clinical population in a community setting, (2) dedication based on commitment, (3) coaching on the players’ terms, (4) navigating the illness, and (5) ensuring sustainability. Collectively, the findings suggest that, while the coaches felt adequately prepared to coach, their coaching role developed and was refined only through interaction with the players, indicating that coaching clinical populations may be easier in practice than in theory and a potentially transformative learning experience.
Conclusions
Non-professional soccer coaches in charge of delivering soccer training for men with prostate cancer value being educated about specific illness-related issues. Initial concerns about how to coach a clinical population disappeared once the coaches engaged with the players and developed their own team norms and illness management strategies. They also gained a broader perspective on their own lives, which they valued and would not otherwise have achieved by coaching a healthy population. Our study indicates that sustainable implementation and the program’s sustainability can be promoted and supported through additional formal, easily accessible communication with trained health professionals and by networking with peer coaches.
Is YouTube a Reliable Source of Health-Related Information? A Systematic Review
Authors: Osman Wael , Mohamed Fatma , Elhassan Mohamed , Shoufan Abdulhadi
Published: November 2021

Background: You Tube is a valuable source of health-related educational material which can have a profound impact on people's health-related behaviors and decisions. However, YouTube contains a wide variety of unverified content that may promote unhealthy behaviors and activities. We aim in this systematic review to provide insight into the published literature concerning the quality of health information and educational videos found on YouTube.Methods: A search of peer-reviewed original articles was conducted regarding the educational value of YouTube medical videos which were published in English. We searched Google Scholar, Medline (through PubMed), EMBASE, Scopus, Direct Science, Web of Science, and ProQuest databases. A literature search was conducted between April 1 and April 31 of 2021. Based on the eligibility criteria, 202 artilces covering 30 medical categories were included in the qualitative synthesis.Results: We reviewed approximately 22,300 videos in all of the studies we reviewed, with a mean of 115 videos per paper, which were assessed by 2.6 assessors. The quality of the videos was rated based on either scores or categories. Researchers commonly employed scoring systems that were either standardized (e.g., GQS, DISCERN, and JAMA) or based upon the guidelines and recommendations of professional associations. The results using different scores indicated an average to below-average quality. According to our aggregate quality assessment data, most of the videos were of poor quality. In terms of bias, only 32% of the videos appear neutral toward the health content, indicating that bias occurs frequently in these videos. Furthermore, the majority of the studies found a negative correlation between the quality and popularity of the videos.Conclusions: YouTube is currently a poor to average source of health information. Furthermore, YouTube metrics are indeed tricky and can be misleading when determining the quality of videos. The future solution should be to implement ranking filtering algorithms that consider experts' endorsements, peer-review, and other metrics that can push up endorsed videos in the search results.
Developing Trends and Core Knowledge in Posterior Cruciate Ligament Research: A Bibliometric and Visualized Analysis
Authors: Li Jinfei , Chen Shuangyi , DiNenna Michael A. , Chen Shuyi , Chen Qi , Wu Song , He Jinshen
Published: November 2021

The authors have requested that this preprint be removed from Research Square.
Inheritance of growth habit under photoperiod insensitive genetic background in dolichos bean (Lablab purpureus (L.) Sweet)
Authors: Basanagouda Gonal , Ramesh Sampangi , Chandana Basalapura Rangegowda , Siddu Chindi Basavaraj , Kirankumar Rotti , Kalpana Mugali Pundalik
Published: November 2021

Development of high yielding cultivars with determinate growth habit in photoperiod insensitive (PIS) background is one of the major objectives of breeding grain legumes crops including dolichos bean. A thoroughly validated genetic basis is a prerequisite for breeding dolichos bean for determinate growth habit in PIS background. Based on the published reports by researchers of our laboratory and those by others, and our unpublished data, we hypothesized that the number and mode of action of genes controlling growth habit differ with degree of photoperiod sensitivity of the genetic material used to investigate the inheritance of growth habit in dolichos bean. To test this hypothesis, we compared the number and mode of action of genes controlling growth habit between segregating generations in Photoperiod sensitive (PS) and those in PIS genetic backgrounds. While indeterminate and determinate plants segregated in 15:1 ratio in F2 populations derived from crosses between determinate PIS and indeterminate PIS parents, they segregated in 9:7 ratio with indeterminacy being dominant in F2 populations derived from crosses between determinate PIS and indeterminate PS parents. These patterns of segregation (15:1 and 9:7) in favour of indeterminate and determinate plants, respectively in F2 populations were confirmed in F3 populations of PIS and PS genetic backgrounds based on good fit between observed and expected ratios (55:9 and 29:35, respectively) in favour of indeterminate and determinate plants, respectively. The patterns of segregation in F2 populations were further confirmed in F3 populations based on good fit between observed and expected ratios of 3:1 segregating and non-segregating families, and of 3:1 indeterminate and determinate non-segregating families, respectively.
Flexural Behavior of Reactive Powder Concrete with Hybrid Section T- Beams
Authors: Atea Rafid Saeed
Published: November 2021

Reactive powder concrete (RPC) is unique of the present and greatest significant improvements in constructions field, it has usual excessive kindness happening current duration in the world owing toward its higher concrete properties, great ductility, durability, shrinkage, great opposition to corrosion and abrasion. In this experimental investigation is carried out on the way to revision the RPC flexural activity with Hybrid Segment T- Beams and the mechanical characteristics of this building material. In order to analyze the belongings of steel fiber volumetric ratio, silica fume ratio, tensile steel ratio, hybrid section on RPC T-beam flexural efficiency, the experimental program included testing five beams. The study was focused on determining the load-deflection behavior, letdown mode, strain supply across the depth of the beams and crack pattern at failure. The results of the volumetric ratio of steel fibers and the silica fume ratio were also considered in studying the mechanical properties of RPC mixes. Moreover, a study of hybrid beams showed that use of RPC web and normal concrete in flange efficiently improves the performance of T-beams compared to normal concrete T-beams with a percentage rise of 12 percent and hybrid beams have also shown that the use of RPC flange and normal concrete in web efficiently improves the display of T-beams associated to regular concrete T-beams with percentages increase of 28%.