bluuebunny/crossref_metadata_2025 huggingface dataset:
Diversidad bioclimática y racionalidad tecnológica de la vivienda rural en la Región San Martín
Authors: Alarcón Zamora José Evergisto , Ramírez Wadson Pinchi , Alberto Mejía Davis
Published: May 2023

Las racionalidades son las virtudes presentes en el ser humano. Son aquellas que posee el humano para usar la razón o los instintos y así ver lo mejor de las situaciones a medidas que se presenten, lo que tiene más sentido o se adapta mejor a sus necesidades. El objetivo es determinar la incidencia de la diversidad bioclimática de la Región San Martín en las formas de pensar y razonar tecnológicamente en la construcción de las viviendas rurales. Se desarrolló el método inductivo, deductivo, etnográfico y comparativo, las técnicas aplicadas fueron encuesta, análisis documental, observación y fotografía. Se utilizó el muestreo no probabilístico a conveniencia del investigador y una muestra de 95 pobladores de las zonas rurales de la Región San Martín. Los principales resultados se encuentran que la diversidad bioclimática existente en la región San Martín, que define zonas de vida específicas, determinan la ubicación y edificación; habilitación y adaptación; uso y manejo como parte de las decisiones racionales tecnológicas basándose en las experiencias acumuladas sostenidas en la participación familiar y las necesidades encontradas en el proceso de construcción de las viviendas rurales. La diversidad bioclimática existente en San Martín, que define área para vivencias específicas, determina ubicación, edificación; habilitación y adaptación; uso y manejo de las viviendas.
Actitudes sobre investigación científica en alumnos del primer curso de Medicina – Universidad Nacional de Concepción
Authors: Desvars Raúl , Bonzi Armando , Galeano Adriana , Medina Cristina
Published: May 2023

Se considera a la investigación científica como uno de los pilares de la formación universitaria y debemos conocer las actitudes de los estudiantes hacia ella además de las barreras que dificultad la instalación de la cultura de la investigación en nuestras comunicades educativas. Estudio observacional descriptivo con enfoque cuantitativo de corte transversal. La población estudiada fue el primer curso de la carrera de medicina de la Facultad de Medicina de la Universidad Nacional de Concepción y se utilizó una parte del instrumento desarrollado por el autor El Achi. Los estudiantes del primer curso de la Facultad de Medicina tienen una actitud positiva/optimista en relación a la investigación científica y la mayoría estuvo de acuerdo en identificar a la falta de tiempo asignado, falta de capacitación y apoyo, falta de exposición y oportunidades y falta de tutoría y orientación en orden decreciente como las principales barreras para la investigación.
THE PSYCHOLINGUISTIC ANALYSIS OF STUDENT PROBLEMS IN SPEAKING ENGLISH
Authors: Aras Ahmad Wahyudi , Hamid Radiah , Mannong Andi Bulkis Maghfirah
Published: May 2023

The research aims to ‘The Psycholinguistic Analysis of the Students Problem in Speaking English at Third Semester of Fkip Muhammadiyah Makassar University in the Academic Year Of 2020/2021. In this research, the researcher used the Qualitative research method. The researcher used Purposive Sampling technique to determine the sample. The researcher chose the third semester as sample that consisted of 30 students. In collecting data, the researcher used observation and interview. Based on the result of the research, the researcher found that the psychological problems of the students were fear of making mistakes, lack of confidence, nervous of facing new guy(anxiety), and factors caused the problems were bad pronunciation, low vocabulary, worry of people think, fear of judging. Those result were proved the previous related studies which Fitriani et al (2005), Xinghua (2007) claimed that students’ psychological problems were fear of making, lack of confidence and anxiety, which caused factors were bad pronounce, low in grammar and vocabulary, but they didn’t claimed as same as the researcher found that fear of judging and worry of people think were caused the students’ feeling anxiety and feeling not confidence when they speaking in English.
THE ANALYSIS OF ACTIVE LEARNING AND CRITICAL THINKING TO THE STUDENT’S PARTICIPATION IN ENGLISH DEBATE COMMUNITY
Authors: Ningsih Sudiarna , Akib Erwin , Burhanuddin Wildhan
Published: May 2023

This research aims to know the The Analysis of Active Learning and Critical Thinking to the Students Participation in English Debate Community.  The research methodology of this research is descriptive qualitative. The techniques of collecting data are speaking test used technique debate and interview test used google forms.  The result of this research found that active learning and critical thinking have a connection to debate skills. They are related each other. The active learning may improve critical thinking ability, while debate skills can be improved by having a good critical thinking.
VOCABULARY COMPLEXITIES FACED BY THE STUDENTS IN LEARNING ENGLISH OF EIGHTH GRADE AT SMP NEGERI 13 MAKASSAR
Authors: Jumatri Rini , Tenri Ampa Andi , Hafid Hilda
Published: May 2023

This research aimed at finding out what the vocabulary complexities faced by students in learning English and its causes. This research applied the qualitative descriptive method that takes two months to collect data using interviews. This study involved 18 students from the eighth grade as participants.From the results of the interview test, most of the students' main complexities were meaning, pronunciation, spelling, grammar, vocabulary memorization, similarity of vocabulary, and foreign words. There are several factors that cause vocabulary complexity faced by students in learning English, namely lack of word understanding, written forms with different spoken forms, students do not master the alphabet, students are lazy to memorize vocabulary, students are confused with similar vocabulary, and students rarely read books.
THE STUDENTS' MOTIVATION IN LEARNING ENGLISH FROM HOME AT SMA NEGERI 3 LUWU
Authors: Afrilia AS  , St Asriati AM  , Ariana
Published: May 2023

This study aimed to determine The Students' Motivation in Learning English From Home. The method of this research was the descriptive qualitative method. Data for the research was collected through interviews (semi-structured interviews) with WhatsApp (WA) as a data collection tool.The sample for this research was students of class XI IPA SMA Negeri 3 Luwu. Samples were taken using the purposive sampling technique.Based on the results of the study, the researchers found that learning English from home makes students tend to be lazy and their learning motivation decreases because it is influenced by extrinsic motivation, such as the environment, teachers, and parents.In the environment part, conditions at home cause a lot of disturbances when starting the lesson, whether it's the sound of chickens, television, car horns, or the sound of motorcycles that interfere.In the teacher part, the teacher is an important factor in aspiring for the implementation of these functions by meeting the needs of students. These needs include physiological needs, the need for safety and security, the need to be accepted and loved, the need for self-esteem, and the need for self-realization.In the parents part, lack of parental attention when studying from home means that learning interest is reduced. Parents who are busy with their work make their children feel neglected. This condition certainly requires parents and families to accompany children, especially in the learning process. The active role of parents and families in children's education, especially during the pandemic, is very important, especially since the role of teachers and educational institutions is more limited in scope.  There is a very close and significant relationship between online learning and student learning motivation. Learning motivation was very influential on learning from home.
STUDENTS' FEAR OF ORAL ENGLISH PRESENTATION IN HIGHER EDUCATION
Authors: Arlan Kasmawati , Ul Hq Muhammad Zia , Daddi Herlina
Published: May 2023

The purpose of this study was to determine the fear experienced or felt by students in oral English presentations and strategies used to overcome fear in oral English presentation. This type of research is qualitative using descriptive method. the sample in this study were students majoring in English education, semester 4 as many as 15 students. The power obtained by using a questionnaire and which is open-ended and then analyzed descriptively. The results of the research obtained are Student Fear of Oral English Presentations in Higher Education, students experience and feel types of fear which include fear of communication, fear of negative evaluation and fear of test. The strategy used in overcoming fear in oral English presentations are the first strategy that focuses on the problem called problem focused coping, for example exercise, making important notes, and seeking support and the second strategy that focuses on emotions is called emotion focused coping, for example self-control, staying away and positive thinking.
CULTURAL SHOCK AND PSYCHOLOGICAL ADJUSTMENT OF THAI STUDENT AT ENGLISH DEPARTMENT IN UNIVERSITAS MUHAMMADIYAH MAKASSAR
Authors: Samual Isma Dara , Nur Qalbi  , Yulianti Natsir Ratu
Published: May 2023

This study aims to find out kinds of Culture shock for Thai student of universitas Muhammadiyah Makassar and the obstacles of the psychological adjustment of Thai student. The subject in this study were 3 people of Thai students at English Department in universitas Muhammadiyah Makassar.The research methodology used descriptive qualitative method. The technique of collecting data was interview with 5 questions that talking about cultural shock and psychological adjustment. The findings of this research according to the observation made by the researcher on the 3 informants that on that have been describe previously it is known that cultural shock experienced are daily language factors, social factors, and cultural factors. The obstacle of psychological adjustment of Thai students there are several factors, namely psychal condition, language, culture and environment.
Analysis Of Rice Distribution On Price Stability In Perum Bulog, West Aceh Regency
Authors: Wandra Agus , Alisman Alisman , Tengah Pelawi Pola
Published: May 2023

Distribution is one of the most important marketing activities carried out in marketing, namely developing and expanding the flow of goods or services from producers to consumers in accordance with a predetermined amount and time. The choice of distribution method is a very important point, because an error in choosing a distribution method can slow down the delivery of goods and services to consumers or users. Distribution of rice is one aspect of the marketing mix that also determines the success or failure of the objectives to be achieved by Perum Bulog, West Aceh Regency in distributing rice to meet community needs. The problem discussed in this study is how the influence of rice distribution on price stability at Bulog Public Corporation in West Aceh Regency. While the aim of this research to be achieved is to determine the effect of rice distribution on price stability at Perum Bulog, West Aceh Regency. The analytical method used in this study is simple linear regression analysis, simple linear regression equation implies that in a regression equation there is one dependent variable and one independent variable. The simple linear regression method aims to prove the hypothesis on the effect of joint distribution variables on price stability at Perum Bulog, West Aceh Regency, both individually and collectively. Based on the results of the study, it shows that the effect of the distribution of rice (X) on the stability of rice prices (Y) is very significant. This is evidenced by the value of Rice Price Stability (Y) at the West Aceh District Bureau of Logistics Agency, a coefficient of determination of 0.875 (R) where this shows 87.50% is in the category of very high influence and the remaining 12.50% is influenced by other variables which is not researched.
NODOS DE LA AGRICULTURA FAMILIAR DEDICADA AL MAÍZ AMARILLO EN MANABÍ, ECUADOR
Authors: Iván Alberto Analuisa-Aroca
Published: May 2023

El estudio relaciona las implicaciones sociodemográficas de los productores para determinar la caracterización y agrupación de los agricultores según el modelo del algoritmo de árbol de decisión. Con base a criterios sociales y demográficos, se obtuvo una muestra de 337 individuos. La zona de estudio fue la provincia de Manabí, que se ubica en la región Litoral del Ecuador. Se diagraman varias agrupaciones, que indican la similitud que tienen ciertas variables sobre la variable respuesta; la agrupación por educación incide en la producción y asociatividad proporcionando una visión de las condicionantes y sirviendo como estrategia en el diagnóstico agro productivo. Además, se pueden observar las diferencias significativas entre los grupos conformados tanto en la variable facturación anual y en la superficie de siembra. Desde un punto de vista microeconómico, surge el interés de los productores agropecuarios en diversificar su actividad y obtener ingresos adicionales. Las unidades productivas agrícolas, son diversas, según los factores asociativos de estudio en Manabí.
COULD COLD STRESS IMPROVE THE FUNCTION OF NATURAL KILLER CELLS OF THE IMMUNE SYSTEM?
Authors: Jorge L. Gutiérrez-Pajares
Published: May 2023

Natural killer (NK) cells are a crucial component of the innate immune system, with a well-known immunosurveillance function that includes the recognition and elimination of virally infected and cancerous cells. Certain pathological and physiological situations alter the function of natural killer cells, rendering our body to infection and cancer development. Therefore, it is relevant to identify pathways to improve natural killer cell activity. In this article, one alternative using cold stress to promote natural killer cell function is presented.
Design Issues in a Component-based Software Product Line
Authors: Donegan Paula M. , Masiero Paulo C.
Published: May 2023

A software product line to support urban transport systems is briefly described and the design of two of its features is discussed. Different solutions based on components are shown for these two features and their variabilities. In particular, an analysis is made of how their design is influenced by the development process adopted, by the decision to use black-box (off-the-shelf) components or white-box components that may be created or adapted depending on application requirements, and by the decision of automating or not the composition process. Additionally, alternatives for deciding how to define iterative cycles and increments of the product line are discussed.
Automatic Generation of Platform Independent Built-in Contract Testers
Authors: Lima Helton S. , Ramalho Franklin , Machado Patricia D. L. , Galdino Everton L.
Published: May 2023

Automatic generation of built-in contract testers that check pairwise interactions between client and server components is presented. Test artifacts are added to development models, i.e., these models are refined towards testing. The refinement is specified by a set of ATL transformation rules that are automatically performed by the ATL-DT tool. We focus on the KobrA development methodology and the Built-In Testing (BIT) method. Therefore, development and testing artifacts are specified by UML diagrams. To make transformation from development to testing models possible, a UML 2 profile for the BIT method is proposed. The overall solution is part of the MoBIT (Model-driven Built-In contract Testers) tool that was fully developed following Model-Driven Engineering (MDE) approaches. A case study is presented to illustrate the problems and solutions addressed.
Towards a Maturity Model for a Reuse Incremental Adoption
Authors: Garcia Vinicius Cardoso , Lucrédio Daniel , Alvaro Alexandre , Almeida Eduardo Santana de , Fortes Renata Pontin de Mattos , Meira Silvio Romero de Lemos
Published: May 2023

Software has been reused in applications development ever since programming started. However, the reuse practices have mostly been ad hoc, and the potential benefits of reuse have never been fully realized. Systematic reuse offers the greatest potential for significant gains in software development productivity and quality. Organizations are looking for ways to develop a software reuse program. The strategy for adopting a reuse technology should be based on a vision for improving the organization’s way of doing business. Thus, this paper presents a Reuse Maturity Model proposal, describing consistence features for the incremental reuse adoption.
LIFT: Reusing Knowledge from Legacy Systems
Authors: Brito Kellyton dos Santos , Garcia Vinícius Cardoso , Lucrédio Daniel , Almeida Eduardo Santana de , Meira Silvio Lemos
Published: May 2023

Software maintenance tasks are the most expensive activities on legacy systems life cycle, and system understanding is the most important factor of this cost. Thus, in order to aid legacy knowledge retrieval and reuse, this paper presents LIFT: a Legacy InFormation retrieval Tool, discussing since its initial requirements until its preliminary experience in industrial projects.
Freiheit und Bindung des Arbeitgebers bei der Fortsetzung befristeter Arbeitsverhältnisse
Authors: Weidl Katharina
Published: May 2023

By deciding for or against the continuation of a fixed-term employment relationship, the employer exercises his freedom of contract. However, this freedom is not unrestricted. The thesis examines how free the employer is in deciding whether to continue fixed-term employment relationships and explores the protection of fixed-term employees in the continuation situation. It deals with protection of employment, self-commitment, equal treatment, prohibitions of discrimination and the position of works council members in the continuation situation. In terms of collective labour law, the works council's possibilities of influencing the continuation decision are analyzed.
Revitalisierung der Demokratie durch transparente Verwaltungsverfahren
Authors: Frankewitsch Annegret
Published: May 2023

The work aims to show ways in which citizen participation and transparent procedures can help procedures to pacify conflicts, avoid lengthy judicial processes, and speed them up. The author reviews whether there is a link between protests and transparent administrative procedures. In doing so, she asks whether the introduction of direct-democratic elements into the Basic Law might be appropriate and makes concrete proposals for amending the Basic Law and the Administrative Procedure Act. The work is aimed at scholars as well as practitioners and provides valuable suggestions for the further development of administrative and procedural law.
Bewegtes Lernen im Fach Musik
Authors: Müller Christina , Hellwig Niclas
Published: May 2023

Schools should offer learning with all senses, including the sense of movement. The methodical material shows concrete examples for learning in motion in primary schools in music with the aims: Additional access to information is to be opened up, e.g. experiencing and understanding music using body language or dancing motions. The processing of information can be optimised by gathering information while walking as well as by switching seats while making music. Learning in motion also helps to prevent children from sitting in one position for too long. In addition, it can increase the pleasure in learning. Moreover, pupils are to connect indepedent learning with movement. They are to look for new variations and to work with a partner.
The Evaluation of Myocarditis in the Post-Covid-19 Era: Pearls and Perils for the Clinician
Authors: Zinkovsky Daniel , R. Sood Michael
Published: May 2023

Coronavirus disease 2019 (COVID-19), which is caused by the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), continues to remain a global threat since declared a pandemic by the World Health Organization in March 2020. While primarily a respiratory disease, its clinical manifestations vary widely ranging from asymptomatic infection to multi-organ failure and death. As more research becomes available, cardiovascular involvement including acute coronary syndrome, heart failure, arrhythmias, thromboembolism, myocarditis and pericarditis have been reported in both the acute infectious stage as well as the post-symptomatic period. Myocarditis is an inflammatory disease of the myocardium that can result from infectious or non-infectious causes including autoimmunity, drug and toxin exposures. This chapter discusses the incidence, pathology, diagnostic modalities, and the management of myocarditis with a special focus on the essential role of a comprehensive approach, while utilizing advanced cardiac imaging for the assessment of myocarditis in the post COVID-19 era.
Artificial Intelligence in Healthcare: Doctor as a Stakeholder
Authors: Rao Bhavaraju Subba
Published: May 2023

Artificial Intelligence (AI) is making significant inroads into healthcare, as in many other walks of life. Its contribution to clinical decision making, to achieve better outcomes, image interpretation especially in radiology, pathology and oncology, data mining, generating hidden insights, and reducing human errors in healthcare delivery is noteworthy. Yet there are physicians as well as patients and their families, who are wary of its role and its implementation in routine clinical practice. Any discussion on AI and its role in healthcare brings into consideration issues like hype and hope associated with any new technologies, uncertain understanding of who the stakeholders are, patients’ views and their acceptance, validity of data models used for training and decision making at the point of care. These considerations must be accompanied by thorough policy discussions on the future of AI in healthcare and how the curriculum planners in medical education should train the medical students who are the future healthcare providers. A deliberation on the issues on the issues that are common to Information Technology (IT) like cybersecurity, ethics and legal aspects, privacy, and transparency is also needed.
A New Liver Segmentation Based on Digital Liver Portal Vein Ramification Using Computer-Assisted Surgery System: Exploring Artificial Intelligence
Authors: Zhou Xianjun , Zhu Chengzhan , Wei Bin , Xia Nan , Chen Yongjian , Dong Qian
Published: May 2023

A good understanding of liver anatomy is required for performing precise liver resection. However, the currently described methods of liver segmentation based on portal and hepatic veins are inconclusive. We proposed a system of liver segmentation based on previous reports and our data. Three-dimensional computed tomography software based on artificial intelligence was used to analyze the portal vein branching pattern in 759 patients. We analyzed four different types of liver segmentation and measured their respective segmental liver volumes. We classified four types of liver segmentation based on the right portal vein. Median segmental liver volumes were variable for the different types of segmentation. Our system of liver segmentation enables a better classification of individual patients into one of the different types, thus assisting in preoperative surgical planning. Segmental liver volume is useful for the preoperative evaluation of remnant liver volume.
Bir bankanın çağrı merkezi çalışanlarının fiziksel ve ruhsal sağlık durumu
Authors: SEZER BALCI Ayşe , KOLAÇ Nurcan , ÖZKAYA Abdülkerim , TOPRAK Ramazan Ümit , ÖĞÜT DÜZEN Kerime
Published: May 2023

Amaç: Bu çalışmada, özel bir bankanın çağrı merkezi çalışanların fiziksel ve ruhsal sağlık

durumunu belirlemek amaçlanmıştır. Gereç ve Yöntem: Araştırmanın evrenini, özel bir bankanın

çağrı merkezinde çalışan tüm bireyler (n=600 kişi) oluşturmuş, evrenden ulaşılması gereken

örneklem sayısı %95 güven aralığı ve %5 hata payı ile 218 olarak belirlenmiş ancak 155 çalışana

ulaşılmıştır. Araştırma verileri, sosyodemografik anket formu ve Genel Sağlık Anketi-12 ile yüz

yüze toplanmıştır. Verilerin analizinde sayı, yüzde değerleri ile Man Withney U testi, ki kare testi ve

Fisher Exact testleri kullanılmıştır. Bulgular: Çalışanların %70,3'ü kadın, %91,6’sı 20-39 yaş arasında,

%59,4‘ü bekar, %50,3'i lisans mezunu, %81,9’unda kronik hastalık bulunmamakta ve %47,1’i sigara

kullanmaktadır. Çalışanların son bir yıldır yaşadıkları sağlık problemleri sorgulandığında, %58,1’i

yorgunluk-bitkinlik, %52,9’u boğaz ağrısı-boğaz kuruluğu, %49,0’u baş ağrısı yaşadığını bildirmiştir.

Sonuç: Çalışanlarının Genel Sağlık Anketi-12 puanlarına göre %79,4’ü ruh sağlığı sorunları

açısından riskli bulunmuştur. Çalışanların fiziksel ve ruhsal sağlığını korunması için iş ortamında

gerekli önlemlerin alınması, çalışanların olası mesleki riskler konusunda bilgilendirilmesi, sigarayı

bırakmaya yönelik sağlığı geliştirici programların düzenli olarak yapılması önerilir.
Một số kết quả sản xuất giống bào ngư vành tai (Haliotis Asinina Linaeus, 1758) tại Khánh Hòa
Authors: Dinh Thi Hai Yen
Published: May 2023

The results of abalone (Haliotis asinina) breed production in Khanh Hoa Province are as follows: After the 30 day - trial farming parent abalone (Haliotis asinina) in cement tanks and the natural habitat, the matured ratio are 57,15% and 63,24% respectively. Spawning with thermal shock combined with UV gives the fertility participation rate of 71,42%. The trial rearing of abalone (Haliotis asinina) of 0.1 cm ÷ 0.5 cm length with different foods shows that the most suitable food is Navicula sp. mixed with chopped fresh algae seaweed and the growth is from 1,0 mm to 3,9 mm, the survival rate is 65,37%. Average survival rate after 5 rounds of artificial breeding is 51,44%.
Kết quả ban đầu về sơn chống hà trên nền cao su
Authors: Nguyen Van Chi , Nguyen Van Ngoc , Mai Van Minh , Bui Ba Xuan
Published: May 2023

This paper presents the results of the initial tests to evaluate the possibility of using antifouling paints on rubber. After 6 months being immersed in seawater at Dam Bay Sea-testing Station (Nha Trang Bay, Vietnam), the two antifouling paints (Seaquantum classic black/a product of Jotun Group and AF-450/a product of Hai-Au Paint Company) have shown good effects on anti-fouling.
Đặc điểm dịch tễ và di truyền của liên cầu khuẩn gây tan máu β lưu hành ở trẻ em tỉnh Quảng Trị
Authors: Pham Khac Linh , Vu Hoang Giang , Vo Viet Cuong , Dmitriev A.V. , Ilyasov Iu.Iu.
Published: May 2023

This study was carried out in 200 children aged 7 ÷ 11 in Gio Chau Primary School, Gio Linh District, Quang Tri Province. The results showed that the rate of ß - hemolytic streptococcal infection was 25.5%, including strains of group A (17,5%) and group G (8,0%). The streptococcal infection in children is not related to their sex but to their parents’ occupation. The types of emm 4.0, emm 12.0, emm 44.0, emm 58.0, emm 104.0 and emm 109.1 were found among 30/35 S. Pyogenes strains. For group G streptococcus 12 S. anginosus and 2 S. dysgalactiae subsp. Equisimilis strains were classified.
Tách chiết Omega-3 từ phụ phẩm chế biến cá
Authors: Dinh Thi Thu Trang , Nguyen Trong Dan , Nguyen Thi Thuy
Published: May 2023

In this paper, extraction of Omega-3 fatty acid from by-product of fish processing is studied. The by-product of fish processing is cleaned and heated at 80oC for collecting liquid fat. It is then transfered to free fatty acid by chemical reaction at temperature 80oC for 120 minutes. The enrichment process of Omega-3 fatty acid from free fatty acid by urea complexation is studied. The optimum conditions are: the urea/fatty acid ratio is 4/1; the ethanol/urea ratio is 9/1; the crystallization time is 24h and the crystallization temperature is 4oC. The content of Omega-3 fatty acid is 24,5% of total polyunsaturated fatty acids, DHA and EPA account for 16,1% and 7,2%, respectively.
Thử nghiệm đánh giá khả năng bảo vệ của dung dịch cromat trong glyxerin sử dụng niêm cất két làm mát xe ô tô
Authors: Ha Huu Son , Nguyen Thi Yen , Nguyen Van Vinh
Published: May 2023

This paper investigates the protective efficiency of chromate - glycerin solution used in preserving automotive cooling system. Standard JIS-K 2234:2006 is used as a testing method. The study results show that the chromate - glycerin solution is suitable for long-term preservation of automotive cooling system with highly protective efficiency (> 99%).
Nghiên cứu ảnh hưởng của các yếu tố đến độ nhớt xenlulo bông tinh chế thủy phân dùng để điều chế nitroxenlulo số 1 và số 2
Authors: Nguyen Van Tinh , Nguyen Duy Quan , Nguyen Van Tuan
Published: May 2023

The article presents the research results of the effects of some factors on the hydrolytic process of refined cellulose cotton utilized in preparing nitrocellulose No.1 and No.2 for manufacturing single-based propellant. The experimental results indicate that the hydrolysis of refined cellulose cotton in dilute acid solution can reduce the viscosity of the cellulose and the cotton can be used as a raw material to produce nitrocellulose No.1 and No.2 with a high level of uniformity.
Khảo sát ảnh hưởng của hàm lượng photpho đến tính chất lớp phủ Ni-P và đánh giá khả năng chống ăn mòn của lớp phủ Ni-P đa lớp đen
Authors: Nguyen Thi Yen
Published: May 2023

The paper presents the effects of NaH2PO2 concentrations in electrodeposition solution on phosphorus contents and corrosion resistance of Ni-P layer. The results of SEM/EDX show that when the concentration of NaH2PO2 in solution increases, the content of phosphorus and corrosion resistance of the layer also increase and the alloy's state changes from coarse granules to a smooth surface. The paper also describes the electrodeposition method to make black Ni-P multilayer coating. The corrosion resistance of black multilayer Ni-P alloys including Ni-P (high phosphorus)/Ni-P (low phosphorus)/black Ni-P-Zn is 6 times higher than that of blackened steel when testing using salt spray methods.
Nghiên cứu hiệu quả chống phóng xạ của các hạt nano cầu vô định hình vận chuyển chất chống oxy hóa genistein
Authors: Nguyen Hong Quang , Chupin V.V. , Svet V.I. , Kovtun V.Yu. , Grebenyuk A.N.
Published: May 2023

This study is devoted to the preparation of the nano drug based on antioxidant substance genistein contained in spherical amorphous nanoparticles (SANp) made up of birch bark triterpenoids mixture. The results of in vivo test show that the highest radiation protective effectiveness is observed if the drug is used an hour before radiation exposure with the dose of 150 mg/kg and the use of the drug after radiation exposure is not effective.
Kết quả nghiên cứu về độ tin cậy của các khối thiết bị vô tuyến điện trên máy bay Su-30MK2 trong điều kiện nhiệt đới
Authors: Karpov V.A. , Svitich A.A. , Sereda V.N. , Golikova E.R. , Nguyen Duy Phuong , Pham Duy Nam
Published: May 2023

This paper presents the necessity and method of building a database of failures, replacements of blocks and units of Su-30MK2 military aircraft. The database containing the data collected in the period between 2004 and 2014 for statistical analysis is created, and from that the blocks and units operating with unsatisfactory reliability in a tropical climate is identified. It is found that the radio-electronic blocks have the highest frequency of failures and replacements (accounts to 70%) and the number of the failures occurring during the rainy season is higher than that in the dry season (55% of aviation equipment and 65% of radio-electronic equipment).
Đa dạng nguồn cây dược liệu khu di tích K9 – Đá Chông và vùng phụ cận
Authors: Dang Ngoc Huyen , Le Xuan Dac , Vu Dinh Duy , Pham Mai Phuong
Published: May 2023

The medicinal plant resources in K9-Da Chong relic area (Ba Vi, Ha Noi) and surroundings are quite diversity. The survey results show that 328 species of medicinal plants belong to 249 genera of 95 families. Magnoliophyta was found the richest with 321 species (98.85%). The richest 12 families and genus with 137 (41.8%) species and 98 (39.35%), respectively are Euphorbiaceae, Asteraceae, Rubiaceae, Fabaceae, Rutaceae, Apocynaceae, Moraceae, Caesalpiniaceae, Amarantaceae, Verbenaceae, Lauraceae, Zingiberaceae. Ten life-forms of medicinnal species used at the research forest in K9-Da Chong relic area and surroundings with 328 species. The most of them are belong to herb 84 (25.85%), shrub 51 (15.79%) and others. The diversity of plant, depending on their used parts such as: leaves 60, bark 24, trunk 50 and whole plant 35 species, respectively. Several species of medicinal plants were identified, which are able to cure 10 disease groups. K9-Da Chong relic area and surroundings should perform synchronously conservation solutions, encouraging local communities to plant medicinal plants, especially species of rare medicinal plants.
Thử nghiệm bảo quản máy bay trực thăng họ Mi bằng công nghệ khí khô trong điều kiện nhiệt đới Việt Nam
Authors: Nguyen Hong Phuong , Sereda V.N. , Le Ngoc Minh , Pham Duy Nam
Published: May 2023

This article presents the testing result while applicating the air drying technology developed by Vietnam-Russia Tropical Centre in one military unit for protecting the Mi helicopter exploited in tropical conditions of Vietnam. The technology was accomplished by using an air drying equipment called ITM-OY7 connected to the helicopter by an air duct. The test was conducted for six months, from January to June 2018. It was shown that, the average value of relative humidity in the helicopter was automatically reduced and held at roughly 60% compared to 70÷92% of that in hangar. It was also demonstrated that, there was no failure caused by the high relative humidity on the helicopter, for which the air drying technology was applied, while there were 6 failures on other Mi helicopters due to the high relative humidity. It is recommended that this effective technology should be widely applicated in all air force units of Vietnam for protecting Mi helicopters against the negative impact of tropical climate.
Đánh giá độ linh hoạt hệ thần kinh trung ương thông qua chuỗi phản xạ thị giác vận động của công nhân tại nhà máy sản xuất thuốc phóng thuốc nổ
Authors: Tran Thi Nhai , Nguyen Hong Quang , Bui Thi Huong , Hoang Van Huan , Tran Thu Trang
Published: May 2023

The study was conducted to evaluate the ability of receiving - processing information through the visual organ to the central nervous system by visual reflexes tests with monochromatic light, color light complexes and moving targets. Participants were 247 workers aged 27 to 57 from two factories manufacturing explosive X and Y. They were divided into 2 groups: one group working in direct contact with chemicals manufacturing explosives (n=158) and the other group working in other workshops that do not come in direct contact with chemicals manufacturing explosives (n=89). Visual reflexes is assessed through criteria: average visual reflex time from light stimulation to reflex (ms), maximum and minimum reflex time (ms), error rate (%), accuracy of reflex (%) and activation speed of the central nervous system. The results showed that the ability of receiving and processing information from the visual organs to the central nervous system of workers at the explosives factory manufacturing was lower than those at other working environment. Although their speed of receiving and processing information, and activation speed of their central nervous system were low, their level of cautiousness and accuracy during manufacturing is high. The group of workers directly exposed to explosive chemicals had high sensitivity and were capable of quick reflex to monochrome light. Their processing speed was slow but their answers of the color light combination were accurate.
Tác dụng cải thiện một số chỉ tiêu chức năng tim mạch và hô hấp của chế phẩm adasten trên thợ lặn
Authors: Pham Khac Linh , Le Van Quan , Tran Thanh Tuan , Vu Hoang Giang , Dao Nguyen Manh
Published: May 2023

Objective: to study the effects of adaptogen preparation “Adasten” in improving the functions of the cardiovascular and respiratory systems of navy divers. Subjects: 75 navy divers belong to the Special force Brigade X, Vietnam People's Navy were recruited in the present study. Methods: 75 navy divers were randomly divided into two groups: Adasten treated group (40 people) took Adasten 10mg x2 capsules x 40 days; placebo-treated group (35 people) took placebo capsules with the color, shapes and numbers of which were similar to those of Adasten capsules. Analyze the changes in respiratory recordings and EEG recordings, after an exercise testing before and after treatments. Results: after 40 days of treatments, in cardiovascular indexes: mean heartbeat and systolic blood pressure after the exercise test recovered faster, mean QRS durations in Adasten-treated group after the exercise testing were shorter than these in the placebo-treated group. Increase in amplitudes of T signals were smaller at the maximal exercise and the amplitudes of T signals decreased more quickly. In respiratory recordings, the vital capacity was significantly higher after an exercise testing in the Adasten-treated group; mean duration of stopping to breath following a maximal inhalation at the 1st minute after the exercise test were significantly higher than before treatments (p<0.05). SpO2 ameliorated significantly after treatments by Adesten (p<0.01). In conclusion: In the study, we provided new evidence of the effects of adaptogen preparation “Adasten” in improving the functions of the cardiovascular system and respiratory systems after the exercise testing in navy divers.
Tổng hợp và hiệu quả ức chế ăn mòn đồng của muối cộng hợp benzotriazole-cyclohexylamine trong dung dịch NaCl
Authors: Hoang Duc Quang , Nguyen Thi Thu Xuan , Vu Van Huy , Nguyen Chi Cuong , Nguyen Trong Dan
Published: May 2023

This paper presents the corrosion inhibition effect of benzotriazole cyclohexylamine salt (BTA-CHA) dissolving in isopropanol (IPA) (3 wt %) on copper M1 in 3.5% NaCl solution. Electrochemical test results showed that BTA-CHA salt in IPA had better inhibition effect on copper M1 in 3.5% NaCl solution than free BTA in IPA. The protection effect on copper M1 in 3.5% NaCl solution increased gradually with increasing inhibitor concentration and reached over 92% at concentrations of ≥ 0.1% and 98.68% at concentrations of 2%. The protection effect determined according to the weight loss method on copper M1 of 0,1% inhibitor was 97.9% after 34 days of soaking the sample in 3.5% NaCl solution.
Manajemen Pemasaran Dalam Meningkatkan Kepuasan Pelanggan
Authors: Mujiyanto Mujiyanto , Diana Nirva , Abas Erjati
Published: May 2023

Dilakukannya penelitian ini bertujuan untuk mengetahui manajemen pemasaran dalam meningkatkan kepuasan pelanggan di SMA N 16 Bandar Lampung melalui pendekatan kualitatif metode deskriptif dengan dokumentasi, wawancara, dan observasi sebagai teknik dalam mengumpulkan datanya. Hasilnya menunjukkan bahwa manajemen pemasaran melalui bauran atau strategi pemasaran marketing mix pada jasa pendidikan sebagai alat bantu taktis promosi produk keunggulan sekolah dengan 7P (process, pshycal evidence, people, promotion, place, price, and product) sudah berjalan cukup baik dalam meningkatkan kepuasan pelanggannya di SMA N 16 Bandar Lampung. Meningkatnya jumlah peserta didik setiap tahun menjadi bukti dari pernyataan tersebut. Terdapat tiga unsur yang mendominasi bauran pemasaran dalam memberikan pengaruh pada kepuasan pelangganya seperti pada program unggulan bidang akademik dan non-akademik. Adapun biaya yang harus dikeluarkan merupakan pran serta masyarakat atau sumbangan biaya pendidikan dari hasil di rapat antara orang tua wali dan pihak sekolah serta sebagian biaya gratis yang di berikan oleh pemerintah. Lokasi sekolah cukup strategis terdapat di kota bandar lampung dan dekat perumahan.
Profesionalisme Kinerja Guru Dalam Pembelajaran Pendidikan Agama Islam (PAI) Di SMP Karya Bhakti Negeri Besar Way Kanan
Authors: Nurhidayah Eva , Ehwanudin Ehwanudin , Mida Hayati Rina
Published: May 2023

Education is the most important need that must be owned   humans, with education the national ideals of the Indonesian people that have been fought for so far will be realized, namely efforts to educate the nation's life through national education, one of which is Islamic Religious Education. Teacher performance is  in planning learning, implementing learning and assessing learning outcomes. This research is a qualitative research with a method based on the philosophy of postpositivism. Based on the results of the research that has been done, it can be concluded that the teacher's performance in teaching PAI at SMP Karya Bhakti is in accordance with the Ministry of National Education, which can be seen from the lesson plans such as lesson plans, syllabus, prota and prosem. implementation of learning includes class management, use of media and learning resources, and use of learning methods. And evaluation of learning using written tests and practical tests.
Detecting Fake Faces with AI: A Deep Neural Network Improvement Project
Authors: Kumar L.Ravi , Kumar Yadav Ramesh , S.Yuvaraj
Published: May 2023

Forgeries created with deep face techniques have become increasingly common in several fields in recent years, including politics, education, and the democratic process, and as a result, many scholars are working on strategies to detect and prevent such forgeries. Since these programmes typically employ machine learning or fuzzy logic, accurate data classification is not something they can promise. However, it is common knowledge that forgery detection methods necessitate a shared, massive dataset, and that facial recognition systems benefit most from deep learning’s precision. Our suggested approaches make use of images and videos from the VGG-19 shared dataset, with genetic algorithm-based feature extraction and an improved convolutional neural network handling classifications for the trained datasets, respectively. A gaussian filter is used as preliminary processing on the VGG-19 common dataset.
Cloud-enabled Internet of Things Medical Image Processing Compressed Sensing Reconstruction
Authors: Kumar L.Ravi , Venkatesan K.G.S , S.Ravichandran
Published: May 2023

Deep learning compresses medical image processing in IoMT. CS-MRI acquires quickly. It has various medicinal uses due to its advantages. This lowers motion artifacts and contrast washout. Reduces patient pressure and scanning costs. CS-MRI avoids the Nyquist-Shannon sampling barrier. Parallel imagingbased fast MRI uses many coils to reconstruct MRI images with less raw data. Parallel imaging enables rapid MRI. This research developed a deep learning-based method for reconstructing CS-MRI images that bridges the gap between typical non-learning algorithms that employ data from a single image and enormous training datasets. Conventional approaches only reconstruct CS-MRI data from one picture. Reconstructing CS-MRI images. CS-GAN is recommended for CS-MRI reconstruction. For success. Refinement learning stabilizes our C-GAN-based generator, which eliminates aliasing artifacts. This improved newly produced data. Product quality increased. Adversarial and information loss recreated the picture. We should protect the image’s texture and edges. Picture and frequency domain data establish consistency. We want frequency and picture domain information to match. It offers visual domain data. Traditional CS-MRI reconstruction and deep learning were used in our broad comparison research. C-GAN enhances reconstruction while conserving perceptual visual information. MRI image reconstruction takes 5 milliseconds, allowing real-time analysis.
Real-time COPD-based Clinical Data Management using Machine Learning
Authors: Kawadkar Pankaj , Jeeva Karunya G.Priyanka , B.Rebecca
Published: May 2023

Our research focuses on using big data technology with a structured and personalized nursing care approach to improve treatment for patients with COPD and respiratory arrest. This study evaluates a continuous care strategy for COPD and RF therapies using big data. The approach reduces COPD and RF severity and flare-up frequency, duration, and number to improve clients’ quality of life. A prominent university hospital’s lung health system included 100 COPD and RF patients. They were randomly assigned to the control or experimental group. A department called control group patients first. After the consultation, patients received answers to their issues. Trial participants received 24/7 care through the internet and big data analytics. The unit’s first nursing care anchored these activities. Health, fitness, function evaluation, and rehabilitation goals can be customized for each patient. Individualized therapy using big data technologies improves outcomes for stable COPD and RF patients, including lung capacity, frequency of acute episodes, readmission rates, self-management, and quality of life. This strategy may be useful in a nursing home where the patient receives constant care.
Ultrasonic Assessment of Residual Urine Volume
Authors: AFŞAR Hamit , BAYRAM M. Metin
Published: May 2023

The assessment of residual urine forms an essential part of the investigation of many urological patients, particularly those with suspected urinary outflow obstruction; the presence of residual urine may influence their management. Generally, it is necessary to measure the volume of residual urine to assess bladder function. The advantages of establishing a simple non-invasive method to measure bladder volume have long been recognized. Various methods of assessing residual urinary volumes exist, including abdominal palpation, the use of postvoiding films from excretory urography and excretion tests using phenolsulphaphtalein or radiolabeled compounds. The most commonly used and accurate technique, catheterisation of the bladder, has the risk of introducing infection and traumatizing the urethra. A method to assess residual urine that is simple, safe, easily repeatable, non-invasive and accurate would be considerable value in clinical practice. in our study we compared the ultrasonically measured residual volumes measured by catheterisation. We describe an ultrasound method for the measurement of residual urine that is quick, easy to perform, accurate and causes no discomfort to the patient.
Reconstruction of the Septum Caudal End Deformity with Perpendicular Plate and Vomerine Bone Graf
Authors: Kanlıkama Muzaffer , Abacı Süleyman , Çelik Savaş
Published: May 2023

Septal reconstruction operation was performed twenty-two patients who had anterior nasal septum deformity. There were nineteen male and three female patients aged 17 to 52 with a mean of 29. Autogenous perpendicular pi ate of ethmoid bone and/or vomerine bone was used as dorsal support material. Complete improvment was achieved in 16 (72.7%) cases and partial improvement was observed in six (27.3%) patients as a result of partial luxation of graft from midline. in only one case. cat-gut reaction was occured on nasal tip.
Transseksüel Ve Homoseksüellerde Herpes Simplex Virus (Hsv)-2 Lgm'nin Elisa İle Araştırılması
Authors: KIYAN Mehmet , KENDİ Özer , CENGİZ A. Tevfik , BİLGE Yaşar , UĞURLUER M. Şahin , TÜMER Ali Rıza
Published: May 2023

In this study, we have examined 27 cases (12 transsexuals and 15 homosexuals), in the 20 of 27 cases average ages were between 21 and 30. 2 transsexuals' ages were 36. There were not found any important clinical symptoms in these cases. AII of cases have examined for several causes in Forensic Medicine Department of Medical Faculty, of Ankara University. HSV-2 lgM antibodies were detected with Elisa in the sera of cases. HSV-2 lgM were found positive in 3 homosexuals and 4 transsexuals. In cases with homosexual contact seropositivity of HSV-2 lgM were found %26 (7/27) HSV-2 lgM seropositivity was accepted the sign active infection. As a result, HV- infection is an important risk for transsexual and homosexual cases.