bluuebunny/crossref_metadata_2025 huggingface dataset:
Study on the process of preparing perilla drinks from Perilla frustescens (L.) Britton
Authors: Nguyen Thi Thu Ha , Phan Due Thanh , Tong Thi Mo , Tran Thi Thuy
Published: February 2022

Perilla frutescens (L.) Britton is well known as a herb and medicinal plant in ietnam and some East Asian countries. Perilla drinks is a favorite product in Japan. In Vietnam, researches on processing perilla into beverage and juce are quite limited. In this study, we built a process to prepare a quality perilla drinks to meet the requirements of food safety and hygiene. A suitable ratio of perilla and water for preparing perilla extract was 1 : 3 (kg\L). The perilla juice prepared from this extract by supplementation of 15% sucrose and 0.3% citric acid had good sensory score of 18.5 ± 0.05. The content of some active substances such as total phenolic compounds, flavonoid, reducing sugar of the perilla extract reached 5.817 ± 0.172; 5.443 ± 0.016; 1.994 ± 0.003 (mg\mL) respectively and had almost no significantly difference than that of the perilla drinks prepare from this extract (4.737 ± 0.0135; 4.750 ± 0.0235; 1.963 ± 0.014 (mg\mL). The content of anthocyanin in dry mass of Perilla frustescens (L.) Britton was 0.6011 ± 0.002 (mg\g) but it was not detected in the perilla extract and drinks. Antioxidant activity of perilla extract and drinks determined by IC50 on DPPH were 105,46 and 103,92 mg\mL respectively. Results of counting total aerobic microbes and coliform showed that a sterilized\pasteurilized perilla drinks met the requirements of food safety and hygiene in 25 days stored at 4 - 30 ᴼC.
Evaluation of general understanding on genetics subject of high school students
Authors: Dao Thi Hong Quyen , Le Ngoc Mai , Do Thi Hong , Le Thi Tuyet Mai , Trieu Anh Trung
Published: February 2022

Genetics is one of the important topics in the high school biology curriculum. Genetics has been taught in the subject of biology at grade 9 and grade 12. To investigate the general understanding of genetics of high school students, a survey was carried out and got responses from participants of 901 high school students across the country. The data for the average score was 3.3; median 3.0; scores ranging from 0.33 to 8.33. The data analyses showed that there was no significant difference in the results between urban and rural regions. The general knowledge of genetics of high school students was low. In general, scores of students in gifted schools were higher than in non-gifted schools. In the group of gifted schools, the biological group gave higher results than others. In general, the students tend to choose the subject Biology and have high average scores, also got survey scores higher than those of other groups. Those results contribute to clarifying the reality of learning Biology in general and Genetics in particular of high school students, contributing to the basis for educational administrators to provide more appropriate educational policies.
Assessment of the development of scientific competence for high school students in Vietnam by scientific research activities
Authors: Nguyen Thi Viet Nga , Do Thi To Nhu , An Bien Thuy
Published: February 2022

The purpose of the study is to evaluate the effectiveness of applying the scientific research phase to develop students' scientific competence. The study used the experimental method without control, processed data using SPSS software on 161 high school students from Vinh Phuc, Lao Cai, Nam Dinh, Hai Duong, Da Nang, Vietnam. Research results show that the difference in mean scores between tests is statistically significant (p < 0.05), and students' science skills have been improved. The results obtained from the experiment prove the application of the teaching process by scientific research (1. Forming research ideas; 2. Determining the title of the topic; 3. Determining the goal of the topic; 4. Hypothesis formation; 5. Research planning; 6. Conduct research; 7. Report results; 8. Evaluation) is one of the right research directions to develop students' scientific competence for high school students.
The procedure for developing the experimental capacity of pre-service Biology teachers in pedagogical universities
Authors: Do Thanh Trung , Nguyen Van Hien
Published: February 2022

Biology is an experimental science, therefore it is important to concentrate on the training Biology pre-service teachers not only teaching capacity in general, but also the implementation of biological experiments in particular. In this paper, we build the experimental capacity structure and propose the procedure to develop this capacity for pre-service Biology teachers. On the basis of the proposal procedure, we carried out educational experiments to assess the soundness and rationality of the proposed process. In this way, contribute to improving the quality of the initial training of teachers in biology and the quality of the teaching of biology in schools.
Action research contributing to education reform in orientation to develop student competencies in science and chemistry
Authors: Cao Thi Thang , Le Ngoc Vinh
Published: February 2022

In many countries, action research in education is currently a necessary trend that supports teachers in the research on the improvement of their teaching activities. In fact, the action research in education is for education reform. In Vietnam, however, action research in education is still a disincentive for teachers, including those of natural sciences and chemistry. The article presents a solution for carrying out the action research contributing to Education Reform in orientation to develop student competencies in science and chemistry. The solution is introduced based on the analysis of the current situation and finding out principal difficulties for the disincentive.
Assessing students' natural science capacity through the theme "Substances and variation of substances”
Authors: Pham Ngoc Son , Nguyen Hong Chien , Pham Ngoc Bang
Published: February 2022

The Natural Science Educational Program is implemented from 2021 - 2022, the secondary schools where are allowed to use one of the textbook sets for this program. The assessment is aimed at evaluating the capacity and capacity development of students, in which natural science competence is a specific ability of the subject. However, the teachers still have many difficulties in assessing students' abilities. In this study, we have proposed and described in detail the levels of assessment of natural science competence through a specific topic. At the same time, we have suggested a competency assessment process for teachers to implement. The results of this study aim to help secondary school teachers do this work effectively, meeting the requirements of the General Education Program 2018.
Development of experimental competence for students via the use of practical experiments in the content of Nonmetallic Chemistry in High schools
Authors: Nguyen Thi Kim Anh
Published: February 2022

Developing experimental capacity for students is an important task in teaching Chemistry in high schools. Development of competence can be accomplished by different means. One of the effective measures is the use of practical experiments. In this article, the author introduces the definition of practical chemistry experiments, the process of building chemical experiments associated with reality, investigating the actual situation of developing experimental competence for students through experiments associated with practice in some high schools, the structure of experimental capacity. Thus, building and using a system of practical experiments in the types of lessons taught in High schools in the part of Nonmetallic Chemistry to develop experimental capacity for students. Conduct pedagogical experiments and evaluate the effectiveness of using practical experiments to develop students' capacity.
ORGANIZATION OF STEM LESSON ON “MAKING A SMART EPOXY NIGHT LIGHT” TO DEVELOP CREATIVE AND PROBLEM-SOLVING CAPABILITY FOR HIGH SCHOOL STUDENTS
Authors: Vu Thi Ngoc Oanh , Luu Hoai Thu , Nguyen Mai Hoang , Vu Quoc Trung
Published: February 2022

Developing students' creativity and problem-solving capability is a necessary, important, and long-term goal in high schools. Integrating STEM topics into the high school curriculum through interdisciplinary integration of subjects to solve real-life problems helps learners create practical products with useful application. Thanks to the STEM topics, learners are encouraged to apply their acquired knowledge to solve specific problems in real life, from which many different competencies are formed and developed for students especially problem-solving and creativity. The article presents the impact of applying STEM topics in teaching Chemistry to the development of students' creative and problem-solving abilities, the process of designing STEM topics in teaching Chemistry, the steps to implement the topic, product evaluation criteria, evaluation criteria for component competencies of creativity and problem-solving capability, and the results to develop students' problem-solving and creative capability through experimental teaching activities in high schools. The data obtained from the teacher’s assessment and the students’ selfassessment showed obvious development of students’ creative and problem-solving capability in the experimental class.
Teaching STEM with the topic “Research on the process and manufacture of mini fire extinguisher equipment” to develop students' ability to apply knowledge and skills
Authors: Bach Thi Phuong Thanh , Tran Trung Ninh
Published: February 2022

The organization of STEM teaching has been attracting the attention of high schools, teachers and educational scientists in recent years. Through solving problems in STEM topics, students have the opportunity to develop core competencies and professional competencies. This article presents the process of designing and organizing STEM, Chemistry 11 themed teaching activities to develop students' ability to apply knowledge and skills. Designed and organized teaching STEM topic “Research on the process and manufacture of mini fire extinguisher equipment” and pedagogical experiment at Dong Quan High School. After collecting the results, processing and analyzing statistics, it was found that there is an improvement in the ability to apply knowledge and skills through the STEM topic of experimental teaching.
Teaching the topic "Cinnamon oil production" in Chemistry Grade 11 in the direction of STEM education for developing ability to apply knowledge and skills for students
Authors: Nguyen Mau Duc , Nguyen Quang Linh , Vu Thi Hong Linh
Published: February 2022

STEM is an educational model that is currently attracting particular interest from scholars, policymakers and educators all over the world, including in Vietnam. Through this model, students not only have a chance to learn scientific knowledge of different fields but also learn how to apply that knowledge into practice creatively. In each STEM-based lesson, students are placed in a situation with either scientific or technical problems that need to be solved. Based on the researches on STEM education and the capacity to use knowledge and skills, the article proposes the teaching process and the organization of teaching activities with the Chemistry topic of "Cinnamon oil production", following STEM education, aiming at developing the grade-11 students’ capacity of using knowledge and skills. The initial pedagogical experimental results show the effectiveness of the proposed teaching process and teaching activities in the formation and development of the grade-11 students’ capacity of using knowledge and skills.
Planning and organizing STEM lessons when teaching about solution and solubility in Chemistry 8
Authors: Pham Thi Binh , Nguyen Thu Thuy , Pham Thi Song Huong
Published: February 2022

Organizing STEM lessons based on the engineering design process in teaching science subjects is a suitable form for the goal of developing students' quality and competency without increasing the load on the program but helping students practice what they learn, and improving learners’ interests. With STEM lessons, students learn the knowledge through solving some problems following the engineering design process and the implementation of learning activities helps students develop all three common competencies, as well as many qualities. This article analyzes the characteristics and requirements of STEM lessons, the implementation process, and illustrates how to design STEM lessons by analyzing an example of STEM lessons based on the engineering design process in teaching the contents of solution and solubility in Chemistry 8. The lesson was experimented pedagogically at Trung Hoa Secondary School, Hanoi; the evaluation results after the pedagogical experiment showed that the implementation of STEM lessons with the proposed contents was suitable for the objectives, contents, and objects, and helped enhance students' interest in learning.
ORGANIZING ONLINE LITERATURE CLASSES, VIEWED FROM BORJE HOLMBERG'S DISTANCE EDUCATION THEORY
Authors: Nguyen Thanh Trung , Phan Duy Khoi , Le Thi Nhung
Published: February 2022

Based on the method of summarizing teaching theory and practice, this article applies Borje Holmberg's viewpoints to discuss the organization of an online Literature class. Therefore, some basic characteristics of Distance Education such as empathy, learner autonomy, and interpersonal communication are used to analyze organizational aspects of online Literature classes including model, software, and content. Hence, the article compares the above system with the Vietnamese status quo to improve the efficiency of organizing online Literature classes through some recommendations such as continuously applying the matching model, effectively exploiting the platform and tool features, streamlining the content, and innovating the assessment method.
IMPACT OF COVID – 19 ON ECONOMIC DEVELOPMENT OF DA NANG CITY
Authors: Truong Van Canh , Tran Thi An , Le Ngoc Hanh , Le My Dung
Published: February 2022

This study points out that the outbreak of Covid – 19 has brought upon unprecedented challenges and profoundly affected the economic development of Da Nang, the key city in the central region of Vietnam, due to the long-term implementation of isolation and social distancing. The city's economic growth rate has been negative since the separation of Quang Nam - Da Nang province. Indicators measuring economic development like GRDP, income per capita are declined. At the same time, there is an increase in the unemployment rate and underemployment of workers. Many key economic activities of the city are deeply affected, especially tourism, retail, investment and importexport activities.
ENVIRONMENTAL EDUCATION TOWARD COMPETENCY DEVELOPMENT FOR STUDENTS WITH INTELLECTUAL DISABILITY AT 5TH GRADE IN INCLUSIVE CLASSROOMS
Authors: Nguyen Ha My , Tran Thi Bich Ngoc , Nguyen Minh Phuong
Published: February 2022

Environmental education (EE) is a process that builds knowledge and develops competencies, attitudes, as well as values that allow students to understand the environmental and socio-cultural reality. EE toward competency development is stressed in the new General Education Program in 2018 through many subjects and educational activities that allow students to improve their academic and affective outcomes, including students with intellectual disabilities (ID). This article focused on researching general issues on EE toward competency development, characteristics of students with ID at 5th grade that affect the organization of environmental education activities, the EE contents at 5th grade toward competency development, and adaptation strategies for teachers to enhance competencies of students with ID in EE.
THE USE OF DIGITAL TECHNOLOGY IN THE CLASSROOM BY PRESCHOOL TEACHERS IN VIETNAM’S CENTRAL AND CENTRAL HIGHLANDS
Authors: Tran Viet Nhi , Hoang Thi Diem Phuong , Truong Thi Thanh Hoai , Hoang Anh Dung , Doan Van Canh
Published: February 2022

The aim of this study is to determine the status of preschool teachers toward applying digital technology (DT) in early childhood education (ECE) and the barriers they face. A quantitative online survey was conducted with 823 full-time preschool teachers in Vietnam's Central and Central Highlands. Results showed that teachers just often use smart TV and laptop computers among technical devices. Technical tools were mainly used to gather information and documents for lesson planning, compose lesson plans, communicate with parents, and present information to children. In addition, preschool educators faced many barriers in applying DT into their classrooms, such as lack of technology devices, lack of technical support or assistance, and lack of technical skills. The results also showed the differences between urban, rural, and mountainous areas in many aspects. The findings of this study may provide reliable information for educational management agencies and preschool teacher training institutions in making and implementing policies related to the application of DT in ECE and fostering technology application capacity for preschool teachers. Some suggestions for enhancing technology use in early childhood classrooms are proposed.
ORGANIZING EXPERIENTIAL ACTIVITIES IN TEACHING ETHICS SUBJECT
Authors: Tran Thanh Du
Published: February 2022

The education curriculum for the subject Ethics (promulgated in 2018) has specified the importance of forming and developing relevant and necessary qualities and competencies for students through the experientially oriented teaching of the subject. Therefore, it is urgently required that the theories be examined and that the procedure for designing and organizing experiential activities be established. Adopting the theoretical investigation approach, this article is to present theoretical background, suggest and illustrate a procedure for teaching Ethics subject in the orientation of compet ency development.
ASSESSMENT OF THE VIETNAMESE STUDENTS' EXPERIMENTAL CAPACITY WHEN USING EXPERIMENTS IN TEACHING HIGH SCHOOLS CHEMISTRY
Authors: Pham Thi Binh , Le Thi Phuong Lam , Nguyen Thi Thuy Trang
Published: February 2022

Vietnam's new general education curriculum was just released in 2018, focusing on developing students' qualities and capabilities. Chemistry is an experimental science, thus developing and assessing students' experimental competence in teaching chemistry is a very important task. Based on the experimental competence scale, the article introduced and illustrated the assessment tools for this competence including student worksheets, observation sheets, and special tests. To pilot evaluation tools, we use specifically pre-test, post-test, and worksheets affecting 63 students in grade 12 of 2 high schools in Ben Tre Province, Vietnam to collect evidence to assess students' experimental competence. Thereby assessing the feasibility and effectiveness of constructed tools.
WRITING WITH ATTITUDE: AN INVESTIGATION INTO STUDENTS’ WRITINGS IN A SECONDARY SCHOOL IN HA NAM
Authors: Nguyen Thi Huong Lan , Nguyen Ngoc Mai Quynh
Published: February 2022

Drawing on Appraisal Framework (Martin & White, 2005), which is developed from Systemic Functional Linguistics Theory (hereafter SFL), this paper investigates how evaluative language is used in writing for middle school students. The data was collected from students' artifacts and questionnaires. Students needed to write two paragraphs on the same topic before and after they were introduced to attitudinal meaning through several lessons in the class. It is an action research project in which students were taught the English writing section with the focus on using evaluative language. The results revealed that students have gained a better understanding of the Appraisal Framework and know how to use evaluative language effectively in their writings after learning about it since they had considerably improved in vocabulary items through main components of Attitude and Graduation. In addition, the questionnaires showed students' reflection on using attitudinal tools in their writing and it reinforced the paper's outcomes mentioned above.
PROMOTING MIDDLE SCHOOL STUDENTS’ ENGLISH VOCABULARY RETENTION VIA QUIZLET
Authors: Tran Minh Trang , Nguyen Thi Minh Tam
Published: February 2022

Teaching for students’ vocabulary retention is always a matter of concern for many English teachers, because vocabulary development is critical for learners to enhance their language proficiency. Nowadays, learning vocabulary has become easier than ever thanks to the use of digital flashcard tools, among which Quizlet is a very popular choice. The effectiveness of Quizlet in students’ vocabulary acquisition has been explored in a number of studies for high school and university students; however, only a few of them focused on lower secondary school students. To address this gap, this study was conducted as action research in a grade-7 class in which the teacher used Quizlet in teaching the “Looking back” section of English 7, with the aim to enhance students’ vocabulary retention under SAMR model. The action research took place during 12 weeks of 2020-2021 academic year in a lower secondary school in Ha Noi. The participants were 15 students with the majority of A1 level. Their vocabulary retention in terms of form and meaning was compared between the Vocabulary quizzes and the teacher's observation. Additionally, questionnaires were designed to find out the influence of Quizlet on students’ retention of vocabulary. The study contributed to the literature review of the beneficial effects that Quizlet had on students' vocabulary retention, specifically in terms of form and meaning for secondary students.
STUDENTS’ PEER ASSESSMENT PRACTICE IN ENGLISH SPEAKING SKILLS
Authors: Duong Thi Anh , Van Thi Thien Ha
Published: February 2022

This research is conducted to investigate non majored English students’ capability in peer assessment in fulfilling English speaking tasks. Literature review shows that peer assessment positively impacts students' achievements. In this study, an experimental approach was followed to develop an assessment rubric which students implement assessing their peers’ performance in-class activities. Second, this assessment rubric was introduced and tested in an English speaking lecture where the researchers instruct the lecturer and students about the assessment process, then evaluate the effect of peer-assessment practice. Third, the research employed a mixed-method with questionnaires, observation and interviews. Research participants include six teachers and 30 non-English-majored students in English speaking class. The study shows that students can assess their peers' performance through a set of rubrics that highly appreciated lecturers of the course.
CREATING EVALUATION-STANDARD OF ABILITY TO ORGANIZE EXPERIENTIAL LEARNING ACTIVITIES FOR PRIMARY EDUCATION STUDENTS
Authors: Nguyen Thi Anh Mai , Hoang Thanh Thuy
Published: February 2022

Capacity can be seen not only as target and conditions but also a result of every activity. Evaluating capacity is fundamental for each person to recognize advantages and disadvantages in order to self-improve and develop to obtain activities’ quality and effectiveness. Capacity of organizing experiential activities is one of the output standards for students of primary education to serve the aims of Vietnam’s popular education program of 2018, especially in the subject of Experiential Activities and Experiential and Vocational Guidance. This article, therefore, tries to introduce standards to evaluate capacities of performing experiential activities of Primary Education students. In order to complete the research, we apply methodologies of analyzing documents, pedagogical observing, investigating with questionnaire, and interviewing professional experts.
PROPOSED PROCEDURES FOR THE HIGH SCHOOL EDUCATION QUALITY ASSESSMENT
Authors: Nguyen Van Luong
Published: February 2022

The quality of education plays an important role in determining the level of human resources as well as enhancing national competitiveness. One of the most decisional factors in the mission of the country management agency, governing system, and every school is maintaining an appropriate standard of high school education. The study objective Identify the necessity and feasibility of the process of assessing the quality of high school education. The research used questionnaires designed on Google Forms and a combined online and face-to-face survey collected 120 subjects who are education administrators and teachers (at Xuan Giang high school, Hanoi; Chu Van An high school, Hanoi; Le Quy Don high school, Hanoi; and some schools in Thanh Hoa province, Tuyen Quang province; Thai Nguyen province; Dong Nai province, Da Nang city, and Vinh city), from February 2020 to November 2021. In addition, in-depth interviews with some educational managers participating in the ETEP program in the period of 2020-2021 were conducted on the content of assessing the quality of high school education. The research results finalized that: According to different perspectives, the summary reveals that the majority agreed with the two types of assessing approaches with the high school's teaching value. Furthermore, many educators believe that if schools seriously implement the evaluation process, continuously improve the lesson to meet the requirements, the quality of high school education will be upgraded.
EFFECTIVENESS OF MICRO TEACHING: DEVELOPING STEM TEACHING ORGANIZING SKILLS FOR PRE-SERVICE CHEMISTRY TEACHERS
Authors: Nguyen Thi Thuy Trang , Pham Thi Binh , Dang Thi Oanh
Published: February 2022

The research aims to determine the effectiveness of micro teaching in developing STEM teaching organizing skills for pre-service Chemistry teachers (teaching organizing skills for pre-service Chemistry teachers - TOSfPCT). This approach was evaluated through the constructivism and experiential learning theories. This research was conducted within a course for six weeks period during the 2nd semester of the 2020-21 academic year at a Chemistry faculty, Hue University of Education. The article presents the micro-teaching process combined with the application of information technology in developing STEM TOSfPCT, pre-\post-test quasi-experimental design with control group was applied. The experiment involved applying micro teaching to the experimental group (EG) while the courses were carried out using traditional lectures in the control group (CG). Mann Whitney U Test and Wilcoxon Sign Test were used in the analysis of the quantitative data. The results obtained from Mann Whitney U Test and Wilcoxon Sign Test suggest that there is no significant difference between the pre-test scores of the experimental and the control groups. Descriptive data also demonstrated that the use of the micro teaching in the curriculum had significantly increased the skill levels of the experimental group pre-service Chemistry teachers.
Teaching informational text in some Literature and Linguistic Curriculums in the world and Vietnam: a comparative survey
Authors: Nguyen Thi Xuan Quynh
Published: February 2022

In the last two decades, with the shift of high school education to competence approaching, the literature and linguistic curriculums in many countries have witnessed crucial changes in the teaching of writing. This paper surveys the standards for writing competency in information texts in the US and Singapore compare to changes in Vietnam's Literature and Linguistics Curriculum. Therefore, we draw out some experiences in teaching writing to develop students' competencies in the Vietnamese current educational context.
Raising students awareness about Chinese culture – the case of the Chinese name
Authors: Do Tien Quan , Khong Thi Ha Giang , Tran Thi Ngoc Chi
Published: February 2022

For Vietnamese students and learners majoring in the Chinese language, learning about the cultural connotations in Chinese names is also a must-have topic. From the perspective of applied linguistics, on the basis of scientific theory and practice, by means of investigation, survey, statistics, analysis, and synthesis, the article clarifies the perception of students majoring in Chinese language, Hung Vuong University on Chinese naming culture, laid a scientific foundation for solutions and recommendations on teaching and learning Chinese in Vietnam, contributing to improving the quality of teaching, specialized research.
Application of social constructivist perspective into proposing classroom management measures in primary education
Authors: Ngo Vu Thu Hang
Published: February 2022

This article aims to present classroom management measures with the application of social constructivist perspective. In order to develop class management measures for primary teachers to implement appropriately with primary students, the principles of social constructivist perspective are used as the basis for the development approach and the knowledge of classroom management are used as the scientific framework for proposing measures. There are 3 main classroom management measures developed with specific activities, including: Establishing a positive classroom environment; Social constructivist teachers; Organizing and collaborating with educational communities. Further studies can be carried out with a focus on the implementation of classroom management measures in the classroom practices, assessing their impact levels and effectiveness that can provide recommendations for the effective implementation of classroom management measures in primary schools.
The factors affecting reading habits of primary school students in ethnic minority
Authors: Nguyen Thi Mai Huong
Published: February 2022

This article aims to understand the factors that promote and hinder the formation of reading habits of primary school students in ethnic minority in Yen Bai and Quang Nam provinces. The results of this study will be used to make the necessary changes to encourage children's reading in order to achieve the goal of supporting children in primary school. The study collected detailed data on reading habits, and the factors affecting the formation and maintenance of habits of primary school students. Methods of Focus Group Discussion, In-depth Interview, and Personal Interview (using a questionnaire) were used with the study's beneficiaries (students, teachers, parents). This article presents findings from a study on factors affecting reading habits of.
Correlation and evaluation of computed tomographic scan findings with findings of functional endoscopic sinus surgery in cases of chronic rhinosinusitis
Authors: Killu Sridevi , Dakkata Suman Reddy , Sreerama Surya Prakasa Rao
Published: February 2022

Background: To correlate between computed tomography (CT) findings and the endoscopic findings in functional endoscopic sinus surgery (FESS) of chronic rhinosinusitis (CRS).Methods: Clinically diagnosed 50 cases of chronic rhinosinusitis, who underwent CT-PNS scan and FESS during the period from July 2019 to September 2021 at department of ENT, government ENT hospital, Peddawaltair, Visakhapatnam, were selected by random sampling method. The findings of CT scan and FESS evaluated and the correlation was assessed using Chi-square test and kappa statistics.Results: Hypertrophy of the inferior turbinate was the most obvious finding in CT (71%) and during FESS (69%). The most common co-morbidity found among the patients with chronic sinusitis was allergy in 35% (18) patients. Most of the important findings like mucosal thickness, osteomeatal complex (OMC) patency, hypertrophy of turbinates, septal deviation, polyp, Concha bullosa were detected both in CT and FESS and show good correlation No significant correlation was found between clinical symptoms and gender or duration of disease.Conclusions: There are good to excellent correlations between the two procedures. In spite of a good agreement between CT and FESS findings in most patients, in some unusual cases, CT may miss some findings. The value of FESS is more because of its therapeutic value. From this study it is evident that CT can complement FESS to a great extent.
The political culture evolution of the Republic of Cuba from 1990 to 2020
Authors: Igoshina Polina
Published: February 2022

The article is devoted to the study of the political culture development of the Republic of Cuba, beginning with the last years of the Fidel Castro's leadership and ending with the early years of the leadership of Miguel Díaz-Canel. Very little is known about Cuban political culture and its development so far, which increases the importance of the issue. In addition, a special interest is caused by the recent major sociopolitical changes in the country. In the course of research, methods, such as analysis and generalization of sources (including official documents, electronic resources, foreign and domestic literature), logical analogy, and comparison (mainly refers to the matching of the analyzed stages), were used. It is concluded that the Cuban political culture has not undergone any fundamental transformations during the period under review, although new features are gradually beginning to manifest themselves.
Revisión de técnicas microscópicas para modelos digitales de roca
Authors: Lozano Andrei Felipe , Juliao-Lemus Tatiana , Ricardo Pérez Edgar , Obando-Yaguas Ayerim Antonieta
Published: February 2022

Los yacimientos no convencionales (roca generadora) representan una nueva etapa en la exploración y explotación de petróleo y gas a nivel mundial, y su caracterización petrofísica sigue siendo un desafío, debido a las bajas permeabilidades, los altos niveles de heterogeneidad y la dificultad de adaptación de las técnicas convencionales. La petrofísica digital surge como una alternativa que aprovecha los últimos avances en la microscopía electrónica, la tomografía computarizada y el procesamiento computacional para, a través de métodos numéricos y algoritmos de conteo de vóxel, estimar las propiedades petrofísicas en lo que se denomina un modelo de roca digital. En este trabajo se realiza una revisión de las técnicas de caracterización digital y su aplicación en muestras de yacimientos no convencionales pertenecientes a la Formación Vaca Muerta (Argentina) y Formación La Luna (Colombia). Con esta tecnología es posible visualizar el espacio poroso a escala micro- y nanométrica, con el fin de obtener información cualitativa (tipos de poro y microfracturas) y cuantitativa (porosidad, permeabilidad absoluta, distribución de tamaño de poro, cantidad de materia orgánica y propiedades petrofísicas avanzadas). Los resultados obtenidos indican que las muestras FIB-SEM se encuentran por debajo del volumen elemental representativo y que las muestras digitales con mayores dimensiones, aunque más representativas, requieren de una mayor capacidad computacional. El escalamiento de las propiedades petrofísicas, la falta de conectividad del medio poroso y la baja representatividad son las principales limitantes presentes en la tecnología. Sin embargo, su potencial aumenta conforme la inteligencia artificial, la simulación y el machine learning toman fuerza en la industria del petróleo.
Od Redakcji: Stawanie się ratownikiem górskim
Authors: Kacperczyk Anna
Published: February 2022

Artykuł przedstawia problematykę pracy Konstruowanie tożsamości ratownika  górskiego autorstwa Piotra Millera. Autorka prezentuje zarówno założenia oraz  główne wnioski wspomnianej pracy jak i sytuuje je w obrębie szerzej rozumianych  studiów nad „stawaniem się”.
Duszący dym odpalonych rac. O wyzwaniach w etnografii subkultury kibiców piłkarskich
Authors: Kossakowski Radosław , Antonowicz Dominik , Szlendak Tomasz
Published: February 2022

Artykuł traktuje o perypetiach etnograficznych, czyli kłopotliwych sytuacjach terenowych, dylematach metodologicznych, etycznych i technicznych w toku eksploracji świata zaangażowanych kibiców holenderskiej drużyny piłkarskiej FC Twente Enschede. Z myślą o usprawnieniu działań badaczy podejmujących w przyszłości podobnie niełatwe zadania etnograficzne wskazuje się tu wielowymiarowe konsekwencje badania subkultury kibiców piłkarskich. Narracja zogniskowana jest na czterech kwestiach. Pierwsza to trudności z akcesem do wspólnoty kibiców piłkarskich. Druga to niebezpieczeństwa (fizyczne, emocjonalne i prawne) związane z doświadczaniem wspólnoty meczowej i pozameczowej. Kwestia trzecia to konsekwencje tak radykalnej etnografii dla tożsamości badacza, wynikające z prowadzenia badań w trybie „pełnego zanurzenia”. Kwestia czwarta to wpływ trzech pierwszych trudności (uzyskiwania dostępu do zamkniętej grupy, niebezpieczeństw pełnego zaangażowania w działania grupy i przemian w obrębie tożsamości „zanurzonego”) na wewnętrzną trafność i zewnętrzną rzetelność opisu etnograficznego.
Interakcje pedagogiczne w szkole gimnazjalnej
Authors: Kalinowska Katarzyna
Published: February 2022

Niniejszy artykuł zawiera syntetyczne omówienie metodologii oraz cząstkową prezentację wyników badań uczestniczących prowadzonych wśród młodzieży gimnazjalnej. Pierwsza część tekstu obejmuje opis przyjętych założeń metodologicznych i przebiegu badania terenowego, charakterystykę badanego środowiska oraz refleksje metodologiczne i etyczne związane z obserwacją uczestniczącą w gimnazjum. Druga część koncentruje się na różnych wymiarach interakcji pedagogicznych. Poruszam tu wątki przemocy symbolicznej, instytucjonalnego charakteru interakcji szkolnych, poziomu skontekstowania interakcji pedagogicznych, a także udziału stereotypów w przebiegu komunikacji między uczniami a nauczycielami.
Stressors and Coping Mechanisms among Extended-Stay Motel Residents in Central Florida
Authors: Gonzalez Guittar Stephanie
Published: February 2022

Not having a permanent home means living in a constant state of stress. Though much has been written about homelessness and its stressors, very little research has focused on the experiences of those living in liminal housing, such as extended-stay motels. As affordable housing units dwindle in the US, more individuals and families with children have moved into extended-stay motels. In this study, I explore stressors that low-income families living in extended-stay motels experience, as well as their coping mechanisms. Through semi-structured interviews with 18 families with children living in extended-stay motels in the Central Florida region, consistent financial and emotional stressors were identified among all families. Additionally, gender and the community feel of a motel impacts the magnitude of the stress, as well as the ability to cope. Findings from this study suggest that, although families in motels experience constant environmental stressors, community building among precariously housed families may create an informal safety net for the families and thus, alleviate the financial and emotional crisis.
Common Ground: How the First Amendment and Intellectual Freedom Provide Room for Diverse Voices
Authors: Smith Heather
Published: February 2022

This study examined the legal history and evolution of the LIS core value of intellectual freedom in the United States of America, explained how the convictions of both conservative and liberal ideations are rooted in this common national foundation, and, thereby, endeavored to reconcile perceived enemies and dispel misconceptions and prejudices within the world of information science.
Assessment of bone metabolism and fracture risk in obese men
Authors: Grabarczyk Małgorzata , Gorczyca Marta , Kosińska Paulina , Klimek Katarzyna , Cieślik Paweł , Holecki Michał
Published: February 2022

Wstęp

Otyłość oraz zespół metaboliczny coraz częściej występują w populacji osób dorosłych. Powszechnie znany jest związek wymienionych zaburzeń ze zwiększonym prawdopodobieństwem wystąpienia chorób układu sercowo-naczyniowego, jednakże mniej oczywisty jest ich wpływ na metabolizm kostny oraz ryzyko złamań. Celem badania była ocena parametrów metabolizmu kostnego, ich związku z ryzykiem złamań u otyłych mężczyzn z otyłością brzuszną oraz zespołem metabolicznym, a także porównanie uzyskanych wyników z wynikami osób zdrowych.

Materiał i metody

W badaniu wzięło udział 36 otyłych mężczyzn (body mass index – BMI ≥ 30) ze współistniejącą otyłością trzewną (obwód talii – waist circumference – WC ≥ 94) oraz 10 zdrowych mężczyzn z grupy kontrolnej, w wieku 54–77 lat. Do oceny ryzyka złamań zastosowano kalkulator FRAX (Fracture Risk Assessment Tool). U pacjentów oznaczono stężenia markerów metabolizmu kostnego: osteoprotegeryny (OPG), C-końcowego usieciowanego telopeptydu łańcucha kolagenu typu I (CTX1) oraz czynnika wzrostu fibroblastów 23 (fibroblast growth factor 23 – FGF-23).

Wyniki

U osób otyłych FRAX był istotnie niższy (p < 0,001) niż w grupie kontrolnej. Zaobserwowano ujemną korelację między FRAX i BMI (p < 0,001) u otyłych mężczyzn. U zdrowych osób taka korelacja nie wystąpiła. Jedynie u osób otyłych stwierdzono również ujemną korelację między FRAX i WC (p < 0,001). Obecnej w grupie osób zdrowych pozytywnej korelacji (p < 0,01) między FGF-23 i FRAX nie obserwowano u otyłych mężczyzn.

Wnioski

U otyłych mężczyzn stwierdzono mniejsze 10-letnie ryzyko złamań w porównaniu z osobami zdrowymi. Dodatkowo wykazano, że w grupie pacjentów otyłych większe BMI oraz obwód talii wiązały się z mniejszym ryzykiem złamań kości, natomiast u osób bez otyłości taka zależność nie występowała. Ponadto u zdrowych mężczyzn większe stężenie FGF-23 było skorelowane ze zwiększonym 10-letnim ryzykiem złamań.
Increasing Breastfeeding Rates Through Continuity of Care
Authors: Nassar Leila , Van Zandt Sarah N. , Nassar George , Nassar Ronya
Published: February 2022

Background

Continuity of care is important in many aspects of medicine, as evidenced by the patient-centered medical home model. The newborn period is an especially important time for continuity of care, as this time sets the stage for lifelong health. Breastfeeding, which is known for its positive health benefits for both mother and child, is the gold standard for infant feeding. While inpatient lactation support is a common amenity available during hospital admission, support can be more difficult to obtain once a patient is discharged. To help eliminate this barrier, a process was put in place within an Eastern Pennsylvania health network’s seven office locations to standardize outreach to the mother-infant dyad.

Methods

A quality improvement retrospective chart review comparing pre- and post-intervention rates of exclusive and non-exclusive breastfeeding was completed using one health system’s Electronic Health Record (EHR). A referral process was established to capture dyads born within the health network’s hospital who were going to be followed at one of the seven pediatric offices outpatient. Mothers were called and followed to see how they were progressing with their breastfeeding goals. Any problems were addressed by the health network’s International Board-Certified Lactation Consultants (IBCLCs) and Certified Lactation Counselor (CLC).

Results

Lactation rates at the pediatric practice were observed to have increased at both 6 months and 12 months post-intervention compared to pre-intervention.

Conclusion

Proactively scheduling and providing outreach immediately following birth may promote increased breastfeeding rates.
Chrononutrition and Human Milk
Authors: Moyo Gugulethu T. , Thomas-Jackson Shera C. , Childress Allison , Dawson John , Thompson Leslie D. , Oldewage-Theron Wilna
Published: February 2022

Background

Breastfed infants have a reduced risk of infections and allergies. The study of chrononutrition in human milk seeks to understand the circadian variation of various human milk immune factors.

Methods

Empirical studies on human milk, chrononutrition, and immune factors were searched through PUBMED, Google Scholar, and SCOPUS. Keywords included “chrononutrition,” “breastmilk composition,” “human milk,” “day-night cycles,” “sleep-wake cycles” and the names of various immune factors. After excluding duplicate articles, animal studies, studies looking at other human milk components, studies that did not collect human milk samples over a 24 hour period, and studies that were not in English, eleven studies on the topic remained and ten studies were included in the review. The excluded study had a sample size of two.

Results

This review identified the circadian variation of certain immune factors found in human milk such as antibodies, complement proteins, cytokines, by-products of phagocyte activity, nucleotides, microRNAs, and antioxidants.

Conclusion

The circadian variation observed in some human milk components highlights the unique ability of human milk to vary in composition based on the circadian rhythms of mothers and infants. The limited number of studies makes it difficult to make conclusive recommendations and creates an opportunity for further research in this growing field.
The Effects of Exercise on Breastmilk Composition and Supply
Authors: McRoy Jewell A. , Akers Lisa H. , Edwards Elizabeth S. , Walsh Jennifer R. , Akers Jeremy D.
Published: February 2022

Objective

The objective of this brief literature review was to identify and summarize the research on exercise’s effects on breastmilk composition and supply and report the implications of these findings.

Method

An online database search was conducted; sixteen articles met the inclusion criteria and were included within the review.

Results

Breastfeeding mothers were observed to have higher total milk volume, IgA, and lactic acid concentrations after maximal exercising. Exercising does not seem to affect lipid or major micronutrient content in breastmilk. These changes in supply and composition do not seem to affect lactation performance or infant acceptance.

Conclusion

Due to the limited evidence available, further research needs to be conducted to draw stronger conclusions on how exercise affects breastmilk composition and supply. Research is also warranted to clarify exercise/physical activity guidelines for women who are breastfeeding.
Exploring Online Social Support Groups, Part 2
Authors: Wagg Amanda J. , Hassett Alexander , Callanan Margie M.
Published: February 2022

Background

Facebook support groups are becoming frequently used by mothers to support them in breastfeeding.

Aim

To explore how breastfeeding mothers make sense of and interpret their experiences of online social support groups, and the perceived impact of group use.

Method

Ten semi-structured telephone interviews were conducted, data transcribed, and analysed using Interpretative Phenomenological Analysis.

Results

This article reports on two of four themes. Breastfeeding women seek different types of support at different times in their breastfeeding journey, and the groups were seen to offer emotional, technical, informational, and experiential support. Professional support was sought for “major” issues, but the experiences of like-minded others were important for most women, managing the day-to-day challenges and emotions when becoming a mother and breastfeeding. They provide a community of likeminded people who support the mother to build confidence and provide reassurance that normalizes breastfeeding and leads to reciprocity and activism.

Conclusion

Mothers appreciated the informational, emotional, and experiential support that the online groups offered; support that provided confidence, reassurance, and normalized breastfeeding.