bluuebunny/crossref_metadata_2025 huggingface dataset:
An Empirical Study of Rational Addiction
Authors: White Cade
Published: December 2022

This paper explores the relationship between the use of quitting aids and smoking cessation using United States (US) survey data from the 2018-2019 Tobacco Use Supplement to the Current Population Survey (TUS-CPS). Becker and Murphy’s (1988) theory of rational addiction implies that strong rational addictions must terminate abruptly. In other words, strong addictions only cease by the user quitting “cold turkey”. I empirically test this hypothesis using a “double-hurdle” approach, outlined by Jones (1994). A smoker’s decision to quit and their conditional quitting success is modeled in two stages. In the first stage, a probit model is estimated for their decision to quit. In the second stage, conditional on their quit attempt, an additional probit model is estimated on whether the quit attempt was successful. The results indicate that the use of certain quitting aids have a significant effect on a smoker’s chances of successfully quitting.
Awareness and perception of contact lens usage and refractive surgery among first year undergraduate medical students
Authors: Palani Maanasa , Ravi Shruthi , Puri Sanjeev Kumar
Published: December 2022

Background: Refractive error occurs when the parallel rays of light coming from infinity are focused either in front or behind the retina, in one or both the meridians resulting in blurred image. The purpose of this study is to assess the level of awareness and perception of contact lens usage and refractive surgery among first year undergraduate medical students.Methods: A cross sectional, observational questionnaire-based study was done on students studying in Saveetha medical college near Sriperumbudur between February 2021 to April 2021 to assess student’s awareness and perception of contact lens usage and refractive surgery.Results: Totally 250 students were studied, of which 39.76% were under 20 years, 61.85% are not contact lens users, 51.41% think that appropriate time of wearing contact lens was 8 hours per day, 64.66% think that soft contact lens should be used, 70.28% think that contact lens should be renewed every 3 months, 38.96%  are not aware of refractive surgery, 54.62% think that dry eye is the complication of long term usage of contact lens, 44.18% think that contact lens are required even after surgery, 38.55% think that there will be complications even after refractive error surgery. Conclusions: The awareness of knowledge, attitude and practice regarding contact lenses usage and refractive surgery was evaluated among the participants to identify the points of weakness and construct a proper health education among the students.
Dental care and challenges for children with Down syndrome
Authors: Alyahya Faisal Abdullah , Alfareh Ali Mohammed , Albadr Riyadh Mohammed , Jowher Asaad Abdulhadi Al , Aljuaid Fahad Khaled , Almutairi Yousef Saleh , Bakrman Hani Abdullah , Jafel Abdulmohsen Saad , Alhamoud Haifa Ahmed , Alsefri Mohammed Faraj
Published: December 2022

Children who have Down syndrome, a common genetic defect, are among the special needs children who are more likely to have poor dental health. These oral health issues may be caused by a variety of causes, including variations in oral morphological characteristics, malocclusions, restricted salivary flow, caries-promoting foods and pharmaceuticals, bruxism, and immunologic elements. Noncooperative disposition during dental treatment combined with comorbidities, poor dental health, and predisposition to periodontopathies puts people with Down syndrome at an elevated risk for lasting poor dental outcomes including dental extraction and infectious diseases, and other costly restorative therapy under general anesthesia which may introduce more health risks due to comorbidities. Accessing dental care from a qualified practitioner is often challenging for children with Down syndrome. In addition to hampering the provision of professional dental care for this demographic, behavior problems also impede the incorporation of preventive dental care measures in the home. Acquiring a dentist who is capable and disposed to serving children with Down syndrome can be difficult. Administration of necessary medical services among medical professionals may be impacted by perceptions toward Down syndrome, a lack of awareness concerning disabilities, and a stereotypical view of children with Down syndrome. Dental professionals must make sure that patients with Down syndrome receive regular, cost-effective dental care and that they are ensured every opportunity to improve their oral health-related quality of life.
Importance and efficacy of health promotion by primary care nurses
Authors: Alanazi Taghreed Ayed , Alanazi Hind Ayed , Alanazi Abeer Ayeed , Alharbi Nawal Naseer , Alsumairi Mashael Abdulhadi , Aldossari Wejdan Hussein , Al Ruwili Abeer Ruwayshid , Alanazi Mashael Raja , Alwadai Khalid Saad
Published: December 2022

The core of many countries' primary care strategies has been increasing community engagement in primary care, greater efforts in preventive illnesses and promoting health, and greater harmony and synergy of current services in accordance with the community's needs. Primary care nurses have a lot of opportunity to provide strategies for health promotion and prevention, and prior research has revealed the multitude of functions that nurses can play, such as managing complex medical problems. Nurses employed in general practices have been observed to be effective in providing a number of preventative initiatives, including smoking cessation. It has been seen that though nurses who work in this environment are eager to counsel patients about physical exercise but have major deficiencies in their understanding of existing recommendations, suggesting a dearth of training preparation for such tasks. Very often, primary health care nurses' ability to undertake health promotion is restricted by the general practice environment, their skillset, and general practitioners' perspectives toward nurses' participation in health promotion activities. Primary care nurses may be able to bridge the gap between societal expectations of this field and how patients view prevention in the context of general practice. Primary care nurses have a lot of room to grow in their ability to collaborate with other healthcare providers and work outside the confines of general practice settings. In primary care settings, nursing appears to be underused despite its potential to be working more successfully in HPP. The effectiveness of present primary health care changes depends on identifying and addressing the enablers and hurdles to health promotion and prevention among primary care nurses.
Causes, diagnosis, treatment and prognosis of root perforations
Authors: Alshamrani Abdullah Saeed , Almusharraf Abdullatif Yousif , Alshammari Khalaf Awad , Ali Eman Jawad Bo , Almutairi Hamed Hamdan , Farrash Fawaz Abdulhamid , Alghamdi Hashem Saad , Alqahtani Abdulrahman Ali , Alosaimi Abdulaziz Ali
Published: December 2022

A perforation is an artificial communication that occurs between the root canal system and the tissues enclosing a tooth. It can be made by the dentist during tooth preparation and passage into the root canal system, or it can happen naturally due to resorption or dental decay and cause connectivity between the root canal and periodontium. Both iatrogenic and non-iatrogenic factors can lead to a root being perforated. Most often, it happens at the coronal aspect of the tooth. Iatrogenic perforations can always be distinguished by the extensive bleeding that occurs after the wound. Serous discharge or fistula from the perforated site, sensitivity on percussing, isolated periodontal pocketing, and chronic gingivitis when the inflammation has reached the alveolus can all be signs of unresolved perforations. Cone beam computed tomography can be used to correctly identify and evaluate resorbing lesions and subsequent perforations. Successful perforation management involves adequately sealing the breach, using the right material, and closing the perforation in the right place as soon as feasible. Perforation management can be done in one of two ways: non-surgically or surgically. The prognosis of teeth with root perforations that have had endodontic treatment relies on a number of variables, including the amount of time that passed before the defect was sealed, the site of the perforation, the effectiveness of the perforation seal, and the size of the perforation. Due to the poor prognosis, teeth with suboptimal periodontal health or those with very wide perforations may be extracted.
The Sustainability Model of Dryland Farming in Food-Insecure Regions: Structural Equation Modeling (SEM) Approach
Authors: Riptanti Erlyna Wida , Masyhuri  , Irham  , Suryantini Any
Published: December 2022

Agricultural sustainability is a prerequisite for reducing poverty and food insecurity. The readiness of food is closely linked to food security and the sustainability of dryland farming. It shows a vital position in food-insecure zones. This article purposes at presenting the analyses of the sustainability model of dryland farming in food-insecure regions. The research was carried out in East Nusa Tenggara Province, which is a region with a relatively high food insecurity level in Indonesia. The samples of farmers include 240 respondents taken using the combination of purposive and snowball samplings. Survey, interviews, and observation methods were applied to gather the data, which include main and supporting data. Data were examined with Structural Equation Modeling. The research model was built based on inputs, processes, outputs, food security, both directly and indirectly, affecting the sustainability of dryland farming. The outcomes of the study have shown that the sustainability of dryland farming can be improved by using government inputs and environmental inputs, reducing family resource inputs, using appropriate farming system models, utilizing government policies, increasing output, and strengthening the food security of farmers' households. Farmers are rational in making decisions about the sustainability of their farming management which is challenged with limitations.
The Role of Sustainable Service Quality in Achieving Customer Loyalty in the Residential Housing Industry
Authors: Dananjoyo Radyan , Cahaya Fitra Roman , Udin Udin
Published: December 2022

The aim of this study is to investigate and observe the effect of (1) sustainable service quality on sustainable construction, reliability, assurance, tangible, empathy, responsiveness, customer satisfaction, customer loyalty; (2) customer satisfaction on customer loyalty; and (3) customer satisfaction in mediating the relationship between sustainable service quality and customer loyalty. The investigation of sustainable service quality employed a survey for homeowner from sixty-three housing developer which listed in Indonesia Stock Exchange. This study will use a quantitative approach, where the research data that has been collected will be processed and examined using structural equation modeling (SEM) based on AMOS version 26. There are 215 homeowners assessed for this study. The results of this study revealed that Sustainable Service Quality elements namely sustainability construction, reliability, assurance, tangible, empathy, responsiveness significantly and directly influence customer satisfaction. In addition, customer satisfaction significantly influences customer loyalty. Finally, the significant of this study is to prove that the implementation of sustainability construction and service quality affecting homeowners’ satisfaction and loyalty.
Preliminary Development of Indicators for Assessing the Sustainability of Indonesia’s Natural-Dye-Based Batik Industry
Authors: Nugroho Zakeus B. , Cahyandito Martha F. , Astari Annisa J. , Dede Mohammad , Abdoellah Oekan S. , Fadilah Kabul , Sunardi Sunardi
Published: December 2022

Indonesia’s batik industry is growing rapidly, including the segment specializing in natural dyes. However, this has produced concerns regarding sustainability deriving from, for example, the use of environmental pollutants in the field. This research aims to propose a set of preliminary indicators to facilitate the assessment of the sustainability of the natural-dye-based batik industry. We selected Batik Preketek, a company in Pekalongan City, Indonesia, as a case study and received support from representative panellists who were knowledgeable on these issues. We employed a mixed-methods approach, with data collected from field observations, laboratory analyses, structured and semi-structured interviews and secondary sources. The validated indicators were then applied to assess the current sustainability of batik production. The indicators used included five indicators from the environmental dimension, four from the economic dimension and six from the social dimension. Assessment of the company’s sustainability level produced a score of 77.50, indicating that it could be categorized as sustainable. The instrument developed was proved capable of capturing major sustainability issues and delivering prioritized strategies to improve sustainability.
Personal Value Orientation, Expectation Confirmation and Choice Behavior: A Perspective of Sustainable Higher Vocational Development
Authors: Kuang Yuyu , Li Zhongwu
Published: December 2022

The sustainable development of higher vocational colleges meets the demand for technical skills talents in the market, and is also a great positive factor for the quality improvement of China's manufacturing industry. As the main force in the technical skill talent market, higher vocational college students are also the most important group in need of attention and support in the education system. Based on the real situation of sustainable higher vocational in China, the SEM equation structure model is used to study the relationship among choice behaviors of the students, the economic value orientation, social value orientation, independent choice ability, expectation and perceived value. The results of this research can put forward some enlightenment and suggestions for the development of higher vocational colleges. The empirical research results are of great practical significance and academic value, which can provide theoretical reference and basis for the future strategic decision-making of higher vocational education and government departments.
Design Guidelines and Standards for Iraqi Schools - The Future Prospects
Authors: Kazem Hiba Abdul Jalil , Al-Kazzaz Dhuha A.
Published: December 2022

Educational facilities are among the critical functional types because of their role in preparing future generations to advance the wheel of progress. If these facilities are not qualified to perform their functions, then the educational process is negatively affected. Schools in Iraq suffer from many problems due to the inadequacy of educational facilities to meet the student’s needs as a result of the absence of comprehensive standards and guidelines for school designs. According to that, this paper aims to identify the deficiencies in the Iraqi standards of public schools. The paper relied in its methodology on a comprehensive comparison between Iraqi standards and a number of international standards and guidance of schools, then the analyses and assessment of some design criteria in a sample of Iraqi schools to show their compatibility with both Iraqi and international standards. The results of comparative analyses between global and local standards and guidelines revealed the limitation and shortcomings in the Iraqi standards. The paper found a wide range of design specifications the Iraqi school standards lack such as the norms of sustainability, safety, flexibility, comfort parameters, special needs, etc. The investigation of existing Iraqi public schools revealed their incompatibility with both Iraqi and international standards. The contribution of this paper is to provide a future vision to develop Iraqi school designs to meet the common requirements of international standards and guidelines for school designs during the conceptual design and building life cycle.
Sustainable Competitiveness: Application of Data Modeling to Identify Predictive Factors by Country
Authors: Villa Cesar Felipe Henao , Zarate Julio Cesar Martínez , Villa Federico Henao
Published: December 2022

Competitiveness as a concept has had a significant impact on the development not only of individual companies, but also of the national and international economy. This article contributes to the analysis of competitiveness framed in the context of sustainability, responding to the call of the United Nations in relation to the Sustainable Development Goals (SDG), and more specifically in the framework of SDG 11, which mentions the importance of working in pursuit of “sustainable cities and communities”. The mixed-cut methodology starts from a conceptual inquiry into the competitiveness of states according to the World Economic Forum, highlighting its main components and a detailed examination of the associated indices to collect data that were later analyzed for the construction of models for understanding of the dynamics of the sustainable competitiveness index, thus contributing to the knowledge of the main competitive advantages and disadvantages of the states in this matter. As a result, a factor analysis of 1196 country records is obtained, which, after being contrasted with structural equation models, allowed the identification of five factors with their respective regression values, thereby identifying classification scenarios by countries with their respective predictor variables. Finally is concluded that there are different variables such as intellectual capital, social capital, natural capital and governance that are needed for a better sustainable society. The methodology approach for this paper presents a novel KDD approach in order to have a more suitable and proper results.
Studies on the Nano TiO2 Photocatalyst Performance Based on the SiC Foam Ceramics
Authors: Yan Yan , Zhang Liyan , Jia Kuankuan , Shang Buqi , Ge Yongjiang , Zhao Bo
Published: December 2022

Nano TiO2 photocatalyst is a kind of polymorphism catalyst, it have small particles that make it difficult to disperse, difficult to recovered, and has the little measure contact area. However the SiC foam ceramics material with highly porous, low alloyed steal bulk density and three-dimensional model, coalescence pore structure. To prevent the application of photocatalyst happen, this article aim at studies on the preparation and properties of nano TiO2 photocatalyst based on the SiC foam ceramics, which in order to offer help to the widespread application of photocatalyst. The study results confirms that the optimum dip times is 4 times when load the coating on the surface of SiC foam ceramic with soaking technology; Stereoscopic photograph show that the modified nano TiO2 photocatalyst white coating on the surface of SiC foam ceramic is uniform;EDSanalytic result show that the main elements of the modified nano TiO2 photocatalyst white coating on the surface of SiC foam ceramic compose of Ti, O, Al ,Si; The photocatalytic efficiency of A,Si-Codoped TiO2 coating is better than nano TiO2 powders.
Reliability Analysis of Dragline Subsystem using Bayesian Network Approach
Authors: Deepak Kumar  , Debasis Jana  , Pawan Kumar Yadav  , Suprakash Gupta
Published: December 2022

Ensuring high reliability and availability of draglines is imperative for the economic sustainability of a highly productive surface mining project. Draglines are very complex in design and consist of hundreds of components. Reliability modelling of a large complex system is difficult with conventional reliability analysis techniques. The dragging mechanism is a critical subsystem for the smooth operation of the draglines. This study uses the Bayesian Network (BN) model, mapped from the Fault Tree (FT), for the reliability analysis of Dragline. Sensitivity analysis identifies the critical components – helpful information for reliability management. The results demonstrate that three components of the dragging mechanism, namely, the drag motor system, drag brake and drag socket are primarily responsible for the poor reliability of the case study system. This study provides valuable information for maintenance planning of operating draglines and reliability blueprint of future dragline design.
The Evolution of the Sickle Cell Anaemia in the Region of Kinshasa: a Mathematic Modelling
Authors: Bokolo R.Gilles , Sinamuli Cedric Musema , Kodondi Dibere , Mafuta Bruce Shola
Published: December 2022

We attempt to study the evolution of the sickle cell anaemia in the region of Kinshasa by proposing three models based on Markov processes.  The first two models namely, the idealistic and the quasi- idealistic models fail to completely describe the data sampled. The third model, the realistic one, leads to results that match the data collected and meets the predictions of serious institutions such as the World Health Organization (about 36 percent of the population belongs to the electrophoresis categories AS or SS).
Self-Efficacy in Mathematics Learning and Efforts to Improve It
Authors: Aswin Aswin , Herman Tatang
Published: December 2022

This research was conducted to determine the effect of self-efficacy on mathematics learning achievement of students in class XI IPA SMA in Riau and efforts to improve it. This research is a descriptive quantitative research combined with correlational research, with a research sample of 30 students from class XI IPA SMA in Riau who were selected using random sampling technique. Data collection techniques are filling out questionnaires, tests, and interviews. The data collection instruments are: (1) self-efficacy questionnaire, (2) mathematics learning achievement test, and (3) interview to increase self-efficacy. Data were analyzed by descriptive statistics and inferential statistics, namely simple regression analysis. The results showed that: (1) students' self-efficacy was in the medium category, (2) students' mathematics learning achievement was in the medium category, (3) self-efficacy had a positive and significant effect on students' mathematics learning achievement, (4) efforts that could What is done in increasing student self-efficacy is (4.1) giving students opportunities to answer existing problems, (4.2) giving awards, (4.3) using models that make students play an active role in learning (4.4) providing positive reinforcements to students, (4.5) providing equal opportunities to all students, (4.6) using group learning and (4.7) using peer tutors.
Alternative for Dirty Cooking Fuels in Ghana: Exploring the Potential of Cassava Ethanol
Authors: Adu Theophilus Frimpong , Lamptey Francis Padi , Kaburi Sandra Ama , Otoo Gifty Serwaa
Published: December 2022

Fossil fuels are a major contributor to climate change, and as the demand for energy production increases, alternative sources (e.g., renewables) are becoming more attractive. Kerosene and conventional solid fuels, which are used to cook, have detrimental effects on people's health, the environment, and the economy. This study seeks to explore the potential of cassava ethanol as an alternative to dirty cooking fuels in Ghana. The study revealed that the prices of electricity and liquefied petroleum gas (LPG) are on the rise and this is making their adoption very low. The use of ethanol, an alternative clean cooking fuel that can be produced locally and reasonably priced, should be encouraged. Cassava was selected as the most viable crop for ethanol production because it is highly underutilized and can be grown on most Ghanaian land. The study also revealed that the Crop Research Institute-Agra (CRI-Agra) Bankye, a variety of cassava, will give an optimum ethanol yield. It has the potential to produce one litre of ethanol from about 7kg of fresh roots. Approximately 147 Ha of agricultural land may be used to produce 1 ton of cassava ethanol. Since cassava ethanol for cooking offers major potential for climate change mitigation, there should be an adoption strategy. This work serves as input for decision-making for industrializing the cassava sector.
Forensic Research of Markers for Game in Paintball
Authors:   Main Directorate of the Ministry of Justice of the Russian Federation, Garmanov V. V.
Published: December 2022

The article discusses the study of pneumatic shooting device - markers to paintball games based on existing national normative and technical documents. An example of research markers for paintball games in order to assign them to a certain category of objects for customs control purposes.
Possibility of Farearm Identification on Fired Bullets Traces after Thermal Influence
Authors:   St. Petersburg University of the Ministry of Internal Affairs of Russia, Latyshov I. V.
Published: December 2022

The experimental research of influence of thermal heating of a bullet on traces of cut fire-arms on its surface is spent. Influence of heating of a bullet on process of identification of the weapon is defined.
Problems of the Firearm Identification
Authors:   Forensic Expertise Center of the Ministry of Internal Affairs of the Kyrgyz Republic, Avanesov V. G.
Published: December 2022

This paper investigates the problem of identification of weapons in the traces of the firing pin on the primer with the marks of the production mechanisms, which were formed during the manufacture of ammunition. The studies used cartridges manufactured in Russia 9 Ч 19 mm with marking LVE LUGER.
O povo do capim dourado – registros fotoetnográficos do Remanescente Quilombola de Mumbuca
Authors: Mota Alice Agnes Spíndola
Published: December 2022

Este registro fotoetnográfico apresenta diversos aspectos relacionados à vida do remanescente quilombola de Mumbuca, com ênfase nas rotinas de confecção do artesanato, festividades e dinâmicas da colheita do capim dourado, planta em torno da qual são construídas as principais rotinas e vivências desta comunidade.
The Latest Pedagogical Ideas for Development of Creative Abilities in Preschool Children
Authors: Shulha Liudmyla , Skomorovska Iryna , Fasolko Tetiana , Mironenko Nadezhda , Zahorodnia Liudmyla , Piddubna Oksana
Published: December 2022

The article attempts an author's technology to develop the creative abilities of preschool children in drawing classes. The authors have reviewed the latest neurophysiological aspects of creativity and have taken them into account in modeling the framework model of the development of creative abilities of preschool children in drawing classes. The aim of the article is to pursue two successive theoretical and methodological steps: a natural neurophysiological justification of the educational law of forming the visual development of elementary school children valid for teachers' understanding and use and a framework morphed structuring of reflexive, cognitive, and reflective activity of schoolchildren. It is possible with synergetic and, in fact, parallel realization of sensitivity, figurative assimilation of signals of the surrounding world, acquisition of experience and (as a cumulative result) - spontaneous, but framed by facilitative intervention, creative realization of the child's deep needs. The main result of the article was that we realized: a training module can be represented as a synergy of educational-neurophysiological correlations. That is, training modules consist, on the one hand, of target, content, technological and productive settings and expectations, and on the other hand, these settings are inseparable from associative, sensual-aesthetic, activity and motivational (cognition - satisfaction) manifestations of children's psyche. The international significance of the article lies in the reception of the latest pedagogical and neurophysiological ideas for development of creative abilities in preschool children for development of the author’s technology. This can be used by practicing teachers as a model for implementation of pedagogical style in the cultural, social and educational conditions of the Eastern European region.
Developing Legal Competence in Junior Bachelors: Prospects of Distance Learning
Authors: Lıtınska Olena , Ryzhenko Irina , Sımontseva Liudmila , Pravotorova Olha , Lıen Tetiana , Novak Nataliia
Published: December 2022

The article shows how distance learninginfluences the development of legal competence in junior bachelors (those awarded certificates of complete general secondary education). The article aims toconsider the postmodern tendencies when developing legal competenceand how they can be practically usedin Ukraine. Also, it is crucial to model and experimentally verify the effectiveness of distance learning in developing legal competence in junior bachelors. To this end, research methods include theoretical and practical ones with some elements of an experiment (a two-year (two academic semesters) pilot experiment involving first-year junior bachelors (a short cycle) from Izmail State University for the Humanities). The results from the validation of a research-based approach have statisticallyconfirmedits effectiveness in terms of junior bachelors’ levels of legal competence developed during distance learning. This allows one to conclude about a positive influence of pedagogical resources of distance learning on the development of legal competence in junior bachelors. The obtained findings can be of interest to both research and teaching staff from higher education institutions. The international relevance of the article lies in the possibility of using these findings to resolve postmodern contradictions of legal education in developing countries, as well as in identifying the needs and readiness of law students in uncertain multimodal social conditions.
Heat treatment effect on dynamic characteristics of the polylactide beam structures printed on a 3D printer by the FDM method
Authors: Logunenko M.Yu. , Korbut E.A. , Kuklin V.E. , Ermilov A.S.
Published: December 2022

The paper presents general description of the FDM technology and a brief overview of its application in the aerospace industry. Main advantages and disadvantages of using poly-lactide in the 3D printing are considered. Influence of heat treatment on the dynamic characteristics of beam structures printed with a 3D printer from polylactide were determined. Resonance oscillation tests of the beam samples were carried out at different filling densities and various modes of preliminary thermal processing in the furnace. Comparative analysis of natural frequencies and damping coefficients of the samples depending on the preliminary heating temperature is provided. Experimental study showed that heat treatment of the beam structures made of polylactide leads to an increase in their rigidity and practically is not affecting the damping. Results of the work made it possible to determine the optimal preheating temperature for polylactide.
Application of microhybrid heterogeneous condensed systems to increase the rocket engines power
Authors: Bechasnov P.M.
Published: December 2022

The paper considers heterogeneous condensed systems which potentially make it possible to use highly efficient oxidizers in their composition, including those liquid. The existing technologies are unable to include them in composition of the solid rocket propellants. Placing oxidizers such as nitrogen dioxide and tetranitromethane in hermetically sealed combustible polymer capsules connected by physical or chemical means allows creating a microhybrid rocket engine. Studies based on analyzing characteristics of similar systems and thermodynamic calculations demonstrate that such systems are potentially able to ensure mechanical strength required for the rocket engine functioning, sufficient speed, combustion static stability and chemical compatibility of components, as well as power at the level of liquid high-boiling fuel vapors, while maintaining advantages of the solid fuel engines. Considering their initial higher safety in production and operation, as well as the ability to be produced by modern technologies, microhybrid rocket engines appear to be promising area of further research.
University students' opinions on LGBT individuals
Authors: Ozpulat Funda , Bulut Fatma Yagmur , Kor Merve
Published: December 2022

Bu çalışma, üniversite öğrencilerinin lezbiyen, gay, biseksüel ve transeksüel (LGBT) bireyler hakkındaki görüşlerini saptamayı amaçlayan tanımlayıcı bir araştırmadır. 18 Nisan - 11 Mayıs 2016 tarihleri arasında 600 öğrencinin katılımı ile yürütülen çalışmada veri toplama aracı olarak, araştırmacı tarafından geliştirilen ve 2 bölümden oluşan anket formu kullanılmıştır. Elde edilen veriler SPSS paket programı kullanılarak değerlendirilmiş, verilerin yüzdeler ve sayılarla değerlendirilmesi yanı sıra, Ki-Kare hesaplaması yapılmıştır. Araştırmaya katılanların %68.3’ü kadınlardan oluşmakta, %77.3’ü 17-21 yaş aralığında bulunmaktadır. %81.7’sinin ailesi çekirdek ailedir. Araştırma sonunda, LGBT bireylerin, kendilerini özgürce ifade etmesi, LGBT bireylere devlet tarafından kanunlarca haklar verilmesi, LGBT bireylerin sözlü veya fiziksel şiddete maruz kalmasıyla ilgili ifadelere verilen cevapların katılımcıların cinsiyetine göre değiştiği ve erkeklerin daha yüksek oranlarla olumsuz cevaplar verdikleri saptanmıştır.
Anahtar Kelimeler: Üniversite öğrencileri, lezbiyen, gay, biseksüel, transeksüel, katılımcı görüşleri
Therapeutic options for extended-spectrum β-lactamases (ESBLs), AmpC β-lactamases producing Escherichia coli and Klebsiella sp. isolated from various clinical samples
Authors: Kumar Vimal , Kaur Narinder , Chauhan Shubham , Bala Rosy , Chauhan Jyoti , Kumar Harit , Devi Shivani
Published: December 2022

Escherichia coli and Klebsiella sp. are the predominant species isolated from clinical samples. Recent and proper understanding of the antibiotic susceptibility pattern of extended-spectrum β-lactamases (ESBL) and AmpC β-lactamases (AmpC) producing E. coli and Klebsiella sp. will prevent the distribution and future incidence of ESBL and AmpC. We designed this study to understand antibiotic susceptibility patterns of ESBL and AmpC producing E. coli and Klebsiella sp. isolated from a tertiary care hospital in North India. A cross-sectional study was conducted from March 2021 to February 2022. Guring this period, various clinical samples were collected and further tested for ESBL producing E. coli and Klebsiella sp. by using the Double disc Synergy test, whereas AmpC was detected by the Boronic acid disk potentiation method. Their antibiotic susceptibility patterns were noted. Various clinical specimens were collected, in which 37.95% were shown growth of bacteria. Among them, 46.67% of E. coli and 25.21% of Klebsiella sp. were identified by standard laboratory protocol. ESBL producing isolates were 44.37% and 34.20% in E. coli and Klebsiella sp., respectively. Whereas AmpC production was detected in 18.27% of E. coli and 29.36% of Klebsiella sp. ESBL and AmpC producing E. coli and Klebsiella sp. isolated from pus, blood, and sputum samples showed the highest sensitivity towards colistin, tigecycline, and imipenem while in urine samples imipenem, meropenem showed the highest sensitivity. Susceptibility patterns of ESBL and AmpC producing E. coli and Klebsiella sp. from various clinical specimens enhance hospital infection management and help clinicians to prescribe the appropriate antibiotics. The carbapenem, nitrofurantoin, colistin and tigecycline were showed highest susceptible against ESBL and AmpC producing E. coli and Klebsiella sp.
Pathological fracture in fibrous dysplasia: a case report
Authors: Supriyadi Bambang
Published: December 2022

Fibrous dysplasia (FD) is described as a growth disorder characterized by the progressive replacement of normal bone elements by fibrous-osseus tissue. Bones affected by FD is presented with bone weakening and prone to pathological fracture. We reported a case of FD in an 8-years-old boy, who came to the hospital with pain in the upper right thigh after falling with bumps in his head and foot. An X-ray revealed a deformity as a diasteal scalloping with radiolucency lesions on one-third proximal of the right upper femur, greater trochanter, and lesser trochanter, with complete transverse discontinuity in the distal deformity. No similar lesion was found in the other bones. Bone structure and trabeculation in the deformity area has decreased and the cortex was thinning. On magnetic resonance imaging (MRI), bone size was enlarged, hypointense on T1WI and inhomogeneous hyperintense on T2WI. Fibrous dysplasia with a pathological fracture is a rare case. The appearance on the X-ray was diasteal scalloping with a ground-glass radiolucency represented with Shepherd's crook deformity. This lesion was accompanied by a pathological fracture (fragility fracture) on distal lesion. Fibrous dysplasia which characterized by bone developmental anomaly gave an inhomogeneous hypointense on T1W1 and hyperintense on T2WI.
Tratamento de esgoto sanitário usando MBR e MABR em plantas paralelas: remoção de DQO e DBO como indicadores de performance
Authors:   Universidade Estadual de Campinas, Moraes Douglas Silveira , Siqueira Rebeca Carvalho ,   Universidade Estadual de Campinas, Guimarães José Roberto ,   Universidade Estadual de Campinas
Published: December 2022

New technologies and processes have been developed, searching for higher efficiency to improve the treatment of effluents discharged into the environment. This work presents the performances, advantages, and disadvantages of two of these processes, the MBR (Membrane Bioreactor) and the MABR (Membrane-Aerated Biofilm Reactor). The data were collected in a comparative study between a full-scale MBR plant and an MABR pilot plant installed in the same place, using the same raw sanitary sewage source. The MBR presented higher efficiencies for Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD). However, the MABR was more efficient concerning the indicators of electric energy consumption per COD load removed and COD load removed per reactor volume. It also was verified the need for and importance of having an efficient system to control and remove the suspended solids in the MABR reactor, being an impacting factor in the pollutant removal efficiency results.
Effect of Plectranthus scutellarioides (L.) Leaf Extract as Natural Antibacterial Against Staphylococcus aureus and Escherichia coli Isolated From Dairy Cattle with Subclinical Mastitis
Authors: Shafina Hanum Farah , Witaningrum Adiana Mutamsari , Puspitasari Yulianna
Published: December 2022

Mastitis is one of the causes of low milk production in dairy cows, and can be caused by bacteria such as Escherichia coli and Staphylococcus aureus. Plectranthus scutellarioides (L.) leaf has antibacterial compounds such as flavonoids, eugenol, polyphenols, steroids, tannins, and so on. The type of this research is experimental laboratory research that aims to test the antibacterial activity of the P. scutellarioides (L.) leaf extract with ethanol pro analysis as the solvent against E. coli and S. aureus bacteria isolated directly from the sample of dairy cow’s milk which CMT score is (+) 3, by measuring its inhibition ability indicated by the presence of clear zone using the agar-well diffusion method. The extract concentrations tested are 5%, 10%, 20% and 40%. The result of the antibacterial test of P. scutellarioides (L.) leaf extract with ethanol p.a. as the solvent showed antibacterial activity against E. coli and S. aureus bacteria isolated directly from cow's milk samples with subclinical mastitis at certain concentrations.
Keabsahan Izin Usaha Pertambangan Sebagai Objek Sita Umum oleh Kurator Dalam Perkara Kepailitan
Authors: Miyata Abita Aiko
Published: December 2022

AbstractIndonesia is a country with abundant natural wealth of various types, including the mining products that are scattered in several parts of Indonesia. Based on Article 6 point 1 of the Mineral and Coal Mining Law, any party wishing to carry out mining business activities is required to have a Mining Business License. The existence of a mining business license itself gives rights to the holder and has economic value. In several bankruptcy cases, the declaration of bankruptcy stated that the debtor holding the Mining Business License was bankrupt, which resulted in the debtor's assets under general confiscation. The definition of bankruptcy property itself is not limited to a tangible object, but can take the form of rights. With the existence of this legal event, it is necessary to study the mining business license as an object of bankruptcy assets based on the bankruptcy law. Keywords: Mining Business License; Mineral and Coal Mining Law; Bankruptcy Law.
AbstrakIndonesia merupakan negara dengan kekayaan alam yang melimpah dengan berbagai macam jenisnya, tak terkecuali dengan hasil galian tambangnya yang tersebar di beberapa wilayah Indonesia. Berdasarkan Pasal 6 angka 1 UU Pertambangan Mineral dan Batubara setiap pihak yang hendak melaksanakan kegiatan usaha pertambangan wajib memiliki Izin Usaha Pertambangan. Izin Usaha Pertambangan sendiri eksistensinya memberikan hak kepada pemegangnya dan memiliki nilai ekonomis. Dalam beberapa perkara kepailitan, putusan pernyataan pailit menyatakan debitor pemegang Izin Usaha Pertambangan pailit, yang mengakibatkan harta kekayaan debitor berada dalam sita umum. Pengertian mengenai harta pailit sendiri tidak terbatas pada sebuah benda berwujud, melainkan dapat berbentuk hak. Dengan adanya peristiwa hukum tersebut, perlu dikaji Izin Usaha Pertambangan sebagai objek harta pailit berdasarkan Undang-undang kepailitan. Kata Kunci: Izin Usaha Pertambangan; Undang-undang Minerba; Undang-undang Kepailitan.
Restrukturisasi Utang Melalui Penundaan Kewajiban Pembayaran Utang Sebagai Upaya Menghindari Kepailitan Bagi Debitor yang Gagal Bayar Karena Terdampak Covid-19
Authors: Haichal Fikri
Published: December 2022

AbstractIn the process of bankruptcy, Law 37/2004 on Bankruptcy and Suspension of Payment provide an opportunity to do a suspension of payment. Suspension of payment aims to postpone the obligation to pay debtors' debt to provide an opportunity to propose a restructuring plan so that peace can occur. The widespread of Covid-19 has an impact on the performance of debtors, debtors who default on being affected by Covid-19 can use suspension of payment to avoid bankruptcy by restructuring, This has also been accommodated by the government by using POJK Number 48 / POJK.03 / 2020 concerning Amendments to POJK Number 11 / POJK.03/ 2020 concerning National Economic Stimulus as a Countercyclical Policy Impact of the spread of Coronavirus Disease 2019. The method used is normative law and the statute, conceptual and case approach. This article will discuss about Debt Restructuring through PKPU as an Effort to Avoid Bankruptcy for Debtors Who Fail to Pay Due to Covid-19 Impact. The results of this study indicate default debtors affected by Covid-19 can avoid bankruptcy by restructuring through POJK 48 / POJK.03 / 2020. Keywords: Bankruptcy; PKPU; Restructurisation; COVID-19; POJK 48.
AbstrakDalam proses kepailitan, UU 37/2004 Tentang Kepailitan dan Penundaan Kewajiban Pembayaran Utang memberikan kesempatan untuk melakukan upaya Penundaan Kewajiban Pembayaran Utang (PKPU). PKPU bertujuan untuk ditundanya kewajiban membayar utang debitor untuk memberi kesempatan mengajukan rencana restrukturisasi agar terjadinya perdamaian. Perkembangan penyebaran Covid-19 yang luas berdampak terhadap kinerja dari debitor, debitor gagal bayar akibat terdampak Covid-19 dapat menggunakan upaya PKPU untuk menghindari kepailitan dengan cara melakukan restrukturisasi, hal ini pun telah diakomodasi oleh pemerintah dengan dapat menggunakan POJK Nomor 48/POJK.03/2020 Tentang Perubahan Atas POJK Nomor 11/POJK.03/2020 Tentang Stimulus Perekonomian Nasional Sebagai Kebijakan Countercyclical Dampak penyebaran Coronavirus Disease 2019. Metode yang digunakan hukum normatif serta pendekatan Undang-Undang, Konseptual, dan Pendekatan Kasus. Artikel ini akan membahas tentang Restrukturisasi Utang Melalui PKPU Sebagai Upaya Menghindari Kepailitan Bagi Debitor Yang Gagal Bayar Karena Terdampak Covid-19. Hasil penelitian ini menunjukkan debitor gagal bayar yang terdampak Covid-19 dapat menghindari kepailitan dengan cara restrukturisasi melalui POJK 48/POJK.03/2020. Kata Kunci: Kepailitan; PKPU; Restrukturisasi; COVID-19; POJK 48.
Advocacy for quantitative progesterone assay in the breeding management of bitches
Authors: Oreoluwa Raymond Akinbote  , Adedamola Oluwakayode Olanrewaju  , Oluropo Michael Obafemi  , Samuel Ayodele Famakinde  , Akintomiwa Afolarin Bolaji  , Mutiat Busayo Rabiu  , Oluwadamilare Olufisayo Leigh
Published: December 2022

Peripheral progesterone titers characterizing the reproductive cycle of the bitch are fairly well-documented in literature. Progesterone titers obtained via fluorescence-immunoassay technique at different points to the appearance-of-bloody-vulva-discharge (ABVD) in apparently healthy, exotic, multi-breed bitches (n = 76) that were subsequently inseminated were summarized using descriptive statistics. The recommended/predictable progesterone titer-ranges- PPTRs (ng/mL) and modality for insemination(s) were: 7.6-8.5 (inseminate-after-24-hours), 8.6-9.9 (inseminate-after-12-hours) and 10.0-20.0 (inseminate-immediately). The length of days from ABVD to the point of obtaining a PPTR (Mean ± SD) was 12.43 ± 3.38 days (range 8-17 days). The frequencies of progesterone assay per bitch were: one-fold (39.47%), two-fold (39.47%). three-fold (18.43%) and four-fold (2.63%). Observations on pregnancy statuses of bitches based on frequency of progesterone assay(s) were: 57.90% (pregnant, multiple-assay), 5.26% (pregnant, one-fold-assay), 26.32% (not-pregnant, multiple-assay) and 10.52% (not-pregnant, single-assay). The litter sizes at the PPTRs (Mean ± SD) i.e., 7.83 ± 1.86 (7.6-8.5 ng/mL), 7.86 ± 1.73 (8.6-9.9 ng/mL) and 8.83 ± 1.86 (10.0-20.0 ng/mL) were comparable with that for the entire study i.e., 8.16 ± 1.87. Similarly, the range of litter sizes at the three PPTRs as well as that for the entire study were same i.e., 5-10 puppies. It is concluded as follows: multiple progesterone assays resulted in higher pregnancy outcome and, litter sizes were not affected as long as insemination(s) occurred within the recommended progesterone titer-ranges. We recommend a comprehensive investigation of all pregnancy determinants, even for apparently healthy dogs, by dog-lovers and, regarding progesterone, multiple-assays, rather than one-fold assay, will upscale their breeding business.
Fundamentals of the catalytic conversion of methanol to hydrocarbons
Authors: Liu Zhaohui , Huang Jianfeng
Published: December 2022

For more than four decades, the methanol-to-hydrocarbons (MTH) reaction has been a successful route to producing valuable fuels and chemicals from non-petroleum feedstocks. This review provides the most comprehensive summary to date of recent research concerning the mechanistic fundamentals of this important reaction, covering different reaction stages. Mechanisms that have been proposed to explain the initial C-C bond formation during the induction stage of the MTH reaction are introduced, including the methoxymethyl cation, Koch carbonylation, carbene and methane-formaldehyde processes. At present, there is no consensus regarding these hypothetical mechanisms as a consequence of the limited amount of conclusive experimental evidence. The steady state of the MTH reaction is also examined with a focus on the widely accepted indirect hydrocarbon pool mechanism and the dual cycle concept that provides a mechanistic basis for the effects of zeolite structures and reaction conditions on product distribution. In the following section, advanced characterization techniques capable of providing new insights into the formation of coke species during the MTH reaction and innovative approaches effectively inhibiting coke formation are introduced. Finally, a summary is provided and perspectives on current challenges and the future development of this area are presented.