bluuebunny/crossref_metadata_2025 huggingface dataset:
Silver Nanocatalyst Supported on Waste-Based Polystyrene Foam for Thermal and Plasmonic Reduction of p-Nitrophenol
Authors: da Silva Welida , de Assis Geovânia , de Jesus Roberta , Motta Rayssa , Ferreira Luiz Fernando , Ruiz Yolice Patricia , Galembeck André , Schneider Ricardo , de Oliveira Rodrigo
Published: March 2023

Disposal of plastics into the environment has been one of the major problems for the environment. The accumulation of polystyrene (PS) occurs in an accelerated way and, therefore, its reuse is challenging. Polystyrene nanocomposites impregnated with Ag nanoparticles (PS/AgNP) are generated from polystyrene residues and can be applied in the catalytic and plasmonic photo-catalytic reduction of phenolic compounds such as p-nitrophenol (PNP) to p-aminophenol (PAP). The AgNP were synthesized by a reverse micelle method resulting in nanoparticles with sizes in a range of 31.1-34.0 nm. The organocolloid was characterized by UV-Vis and dynamic light scattering (DLS), demonstrating the preparation of spherical nanoparticles. The preparation of the PS/AgNP, obtained using a thermally induced phase separation method (TIPS), was confirmed by means of scanning electron microscopy (SEM), X-ray diffraction (XRD), laser-induced breakdown spectroscopy (LIBS), and Fourier transform visible infrared spectroscopy (FTIR). Nanocomposites showed impressive performance in the catalytic and plasmonic photocatalytic reduction under blue light irradiation, reaching up to 98% conversion, being a promising material for wastewater treatment as well as other various environmental issues. We used blue light to observe the plasmonic effect of silver nanoparticles, and no previous reports of this composite for PNP reduction using blue light photocatalysis were found.
Brand Image Islamic: Halal Food Product Quality in Relationship To Repurchase Intention
Authors: Trihudiyatmanto M , Prananditya Ari , Iqbal Muhammad Amjed
Published: March 2023

The theory of repurchase intention is one theory that explains customer behavior. Customers respond positively to the quality of service and intend to consume the company's products again. Many researchers study customer behavior influenced by service and product quality, but not much research has been conducted from an Islamic brand image perspective. An Islamic brand image is a form of brand image in the minds of consumers by using Islamic names. This research is causal research, which aims to analyze the relationship and influence of two or more phenomena through hypothesis testing. The sampling technique used was the accidental sampling method. Methods of data collection using a questionnaire using the Linkert scale. After being tested statistically using Structural Equation Modeling (SEM) analysis, the study results show that the quality of halal food products affects repurchase intentions. Islamic Brand Image mediates the effect of the relationship between the quality of halal food products on repurchase intentions at Yuasa Food Wonosobo. The halal aspect is one of the special considerations in the future, and this aspect needs to be developed further.
Pesticide removal by the bioaugmentation process in secondary treated wastewater
Authors: Ammeri Rim Werheni , Kloula Salma , Simeone Giuseppe Di Rauso , Mehri Ines , Hassan Wafa , Hassen Abdennaceur
Published: March 2023

The work was focused on the effect of the bioaugmentation process on STWW contaminated by pentachlorophenol (PCP: 100 mg L−1) by Pseudomonas putida AE015451. The monitoring of bioaugmentation treatments was assessed by chloride content determination via high-performance liquid chromatography (HPLC), optical density (OD) for microbial biomass determination, and pyoverdine and biofilm production. The process of bioaugmentation by a PGPR Pseudomonas strain showed a high-efficiency removal rate of PCP (100 mg L−1). The contaminant decreased up to 92% after 168 h. The production of pyoverdine and the formation of bacterial biofilm by the strain Ps. putida AE015451 showed an important role in tolerating the toxicity of PCP by using it as a carbon source. The obtained result proved that the pyoverdine production and biofilm formation help the Pseudomonas bacteria to tolerate to the stressed condition as pesticide. Moreover, the co-existence of the iron and PCP molecule ameliorate its biodegradation.
The Use of Cell-penetrating Peptide for Delivery of Recombinant Transcription Factor DNA into Primary Human Fibroblast
Authors: Remelia Melinda , Bela Budiman , Widyaningtyas Silvia Tri , Antarianto Radiana Dhewayani , Mazfufah Nuzli Fahdia , Pawitan Jeanne Adiwinata
Published: March 2023

Background: Reprogrammed cell therapy has not been applied for clinical purposes due to the malignancy issue. The aim of this study was to design the recombinant vector of the transcription factors and analyze the effectiveness of cell-penetrating peptide delivering system for human primary fibroblast transfection to avoid the malignancy issue.Materials and methods: The constructions of CCAT/enhancer binding protein alpha (CEBPA), hepatocyte nuclear factor 4 alpha (HNF4A), nuclear receptor subfamily 1 group I member 2 (NR1I2) were confirmed with DNA digestion and sequencing. Breast reduction (BRED) and palate (PAL) tissue were used as human primary fibroblast sources. The transcription factors were delivered into BRED and PAL with recombination of avian leukosis sarcoma virus (ALSV), human immunodeficiency virus (HIV) matrix, and regulator of expression of virion proteins (Rev) (ALMR), tagged with enhanced green fluorescence protein (eGFP). Post-transfection cells were then cultivated with optimized medium. Gene expression was measured with quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR).Results: Gene expression levels of CEBPA, HNF4A, NR1I2, glutamate-ammonia ligase (GLUL), albumin (ALB), and cytochrome P450 (CYP) were increased. Transfection with ALMR, which were more efficient in BRED than PAL fibroblasts may have the advantage in autologous cell therapy for elderly patients.Conclusion: Transfection of transcription factors to human primary fibroblast may be performed by using constructions of plasmid as designed in this study.Keywords: recombinant plasmid, hepatocyte-like cells, primary fibroblasts, recombinant peptide, cell reprogramming, autologous cells therapy
Association between 25(OH)D3 Levels and the Presence of COVID-19 Symptoms
Authors: Hermawan Dessy , Aryastuti Nurul , Muhani Nova , Arisandi Syafik , Prativi Made
Published: March 2023

Background: Recently, there have been studies reporting a relationship between vitamin D levels in the blood and the immune system. This study aimed to analyze the association between vitamin D levels and symptoms of coronavirus disease 2019 (COVID-19).Materials and methods: This study was an analytical survey study with a cross-sectional approach, with lecturers at Universitas Malahayati that have been infected with COVID-19 in 2022 as subjects. Total 47 subjects were included. Subjects were fasted overnight, then blood samples were taken from subjects in the next morning. The blood was centrifuged, then the serum was separated for examination by the direct competitive chemiluminescence immunoassay (CLIA) method using Architect 25-OH Vitamin D Reagent. Data was analyzed using logistic regression.Results: None of the subjects had normal blood levels of 25(OH)D3 and almost half (48.9%) of the subjects had symptoms when infected with COVID-19. There was a significant relationship between the level of 25(OH)D3 (p=0.001) and the status of the COVID-19 vaccine (p=0.013) with the presence of symptoms in COVID-19 patients.Conclusion: The lower the level of 25(OH)D3 in the blood and the more incomplete the COVID-19 vaccine, the greater the onset potential of COVID-19 symptoms. It is necessary to maintain vitamin D intake and increase the coverage of the COVID-19 vaccine, especially at booster doses.Keywords: vitamin D, COVID-19, vaccination, health protocol
ECONOMIA SOLIDÁRIA 2.0
Authors: Alvear Celso Alexandre , Neder Ricardo , Santini Daniel
Published: March 2023

Em contraposição ao capitalismo de plataforma, modelo em que empresas gerenciam trabalhadores em condições precárias por meio de algoritmos, o presente artigo pretende aprofundar a ideia de cooperativismo de plataforma, explorando suas possibilidades como instrumento de transformação social e inclusão no Brasil. Parte-se do histórico da economia solidária no país para imaginar soluções estruturadas em solidariedade, participação social e valorização de bens comuns. Tudo a partir de um entendimento de que o desenvolvimento de tecnologia deve ser pensado para além da criação de bens de consumo descartáveis com obsolência programada. Para elaborar e construir soluções são necessários modos de interação e gestão compartilhada entre movimentos sociais com suas demandas populares e desenvolvedores de Tecnologia da Informação e Comunicação (TIC). Articular tais segmentos é o desafio para o desenvolvimento de algoritmos com protagonismo social em projetos capazes de operar em favor do bem público - esse é o melhor caminho para garantir a soberania digital e avançar com empreendimentos econômicos solidários no Brasil.
A Comparison of K-Means and Agglomerative Clustering for Users Segmentation based on Question Answerer Reputation in Brainly Platform
Authors: Cahyo Puji Winar , Sudarmana Landung
Published: March 2023

Brainly is a question and answer (QA) site that students can use as a media for questions and answers. Students can also use Brainly to find and share educational information that helps students solve their homework problems. In Brainly, users can answer questions according to their interests. However, it could be that the interest is not necessarily following the competencies possessed. It causes many answers to the questions given not to have a high rating because the answers given are of low quality to be prioritized as the main answer. This study aims to apply the K-Means and Agglomerative Clustering methods to segment users based on the reputation of the answerers by conducting clustering based on track records in answering questions on mathematics subjects. This study used the number of the brightest scores and the number of answers that did not get a rating as the basic features for clustering. The comparison between the two methods used is based on the Silhouette Score, representing the quality of the clustering results, calculated by applying the Silhouette Coefficient method. This study result indicates that the K-Means method gives better results than the Agglomerative Clustering. The Silhouette Score generated by the K-Means method is higher at 0.9081 than the Agglomerative Clustering method, which is 0.8990, which produces two clusters or two segments.
Development of Virtual Learning using Problem-Based Learning Models for Vocational Education Students
Authors: Yanto Doni Tri Putra , Kabatiah Maryatun , Zaswita Hermi , Giatman Giatman , Effendi Hansi
Published: March 2023

This study discusses efforts to improve the implementation of remote learning that is not optimal through the development of Virtual Learning using the Problem-Based Learning Model for vocational education students in the learning process of Electrical Lighting Installation at Vocational High School (SMKN) 2 Lubuk Basung, Sumatera Barat Province. The emergence of the Covid-19 pandemic demands a rapid change in the implementation of learning from face-to-face learning in the classroom to remote learning. This change requires innovations in implementing learning such as media and learning models to ensure optimal learning implementation even though it is carried out remotely. The 4-D development model (Four-D) is applied in this study as a research product development model consisting of 4 stages: Define, Design, Develop, and Disseminate. The instrument used for data collection in the study is a questionnaire for the validity and practicality assessment instrument. The results showed that the virtual learning developed using the Problem-Based Learning Model was valid to be applied in the learning process. After being tested in the learning process, the Virtual Learning developed has been practically used in the learning process to optimize the implementation of learning and improve student learning outcomes. It can be concluded that the Virtual Learning developed with the Problem-Based Learning Model is valid and practical to use in the learning process to optimize the implementation of electric lighting installation learning for vocational education students.
Sustainable development goals: Recognition of Pancasila education materials in shaping student ethics in the digital era
Authors: Sartika Rika , Praja Wina Nurhayati , Azis Abdul
Published: March 2023

Students' interest in learning and teaching Pancasila Education has not yet thoroughly imbued awareness and sincerity. Students prefer to discuss the actualization and practice of the Pancasila precepts. The method used in this research is a qualitative approach with descriptive analysis and observation methods. Researchers conducted observations, interviews, and distributed google forms to find and dig the required information from students and several related lecturers. Looking at some of the responses and the obstacles felt by students in studying the philosophical and historical Pancasila, the researcher considers it essential to reconstruct the content of the Pancasila Education material in the face of the Industrial Revolution 4.0. The position and role of Pancasila ideology in the scope of Pancasila education must be strengthened and reconstructed more dynamically according to the times. The results obtained from this study show that Pancasila education materials need to be improved and adapted to the developments and guidelines of the digital era, not only centered on theories and concepts but materials are made more exciting and creative so that Pancasila ideology can survive and develop following the goals of the Sustainable Development Goals. (SDGs). So that the character, personality, and ethics of students needed in the 21st Century are fulfilled and optimized for various aspects of life.
Strengthening national identity partnerships through community participation in border areas
Authors: Bria Makarius Erwin , Lam Kee Fui Turner
Published: March 2023

This study aimed to investigate the participation of border communities in maintaining national identity in the border areas between Indonesia and Timor Leste. The research approach utilized in this study was a case study, and data were collected through interviews, observations, and documentation. The study focused on border communities in East Kobalima District, Malaka Regency, East Nusa Tenggara Province, Indonesia. The findings revealed that border communities participated in maintaining the spirit of nationalism and national identity in three ways. Firstly, they participated in Technical Guidance (Bimtek) on Border Guard Management and capacity building activities for border communities, including the maintenance of national boundary markers such as National Boundary Pillars (PBN) and Border Sign Posts (BSP) along the national border. Additionally, they preserved local culture. Secondly, the community actively participated in flag ceremonies to commemorate the anniversary of the independence of the Republic of Indonesia and National Education Day. Thirdly, they participated in preserving the national language in border areas to communicate with fellow Indonesians and citizens of the Democratic Republic of Timor Leste (RDTL).
Strategy to empower Pancasila values through podcast media as digital citizens innovation
Authors: Nugroho Dedy Ari , Anwar Waris Yohn Candra
Published: March 2023

Communication is one of the skills that need to be mastered by the 21st century generation. This includes communicating in harmony with the current pattern of the younger generation, which has a lot to do with the use of digital media. Podcasts are a form of innovation in communicating to spread Pancasila values in the lives of the younger generation. This research relates to the strategy taken to re-earth the values of Pancasila in the younger generation. This research was conducted at the Pancasila and Citizenship Education Study Program, Lambung Mangkurat University. This study focuses on 2 research points, including: (1) Podcast innovation in the educational environment, and (2) the strategy for implementing Citizenship Podcasts to promote Pancasila values. The results obtained in this research article refer to recommendations for innovative forms of communication that are more adaptive for the younger generation in grounding the values of Pancasila. This research article uses qualitative data analysis techniques by describing the data findings in the article presentation. The data collected is combined from observation data, interviews, and the experience of researchers in civic podcast activities. This research article is expected to be able to provide positive recommendations for the advancement of digital-based science.
School and Parents Collaboration in Home Learning Service for Students with Sensory Impairments
Authors: Hermanto Hermanto , Pamungkas Bayu
Published: March 2023

This study aims to understand the implementation of schools and parents' collaboration in home learning services for students with sensory impairments. The method used in this study is a qualitative research method describe the implementation of schools and parents' collaboration in home learning services for students with sensory impairments with observation, interviews and documentation as data collection techniques. Respondents in this study consisted of 30 teachers and 20 parents of children with sensory impairments who were selected by purposive sampling. The data obtained were then analyzed through data condensation, data presentation and drawing conclusions. The implementation of school and parent collaboration in home learning services for sensory impaired students is divided into collaboration on lesson planning, learning implementation and learning evaluation. The collaboration shows a modification of curriculum and lesson, adjustment of communication strategy, and implementation of home visit program.
Identification and Academic Assessment Models for Students with Specific Learning Difficulties in Inclusive Elementary Schools
Authors: Syamsi Ibnu , Dharma Dwitya Sobat Ady
Published: March 2023

This study aims to identify students with special learning difficulties in inclusive primary schools and develop assessment models. The research subjects were inclusive elementary school students in Sleman Regency. Methods of collecting data were observation, tests, interviews, and surveys. The results showed that 85 students (18.27%) were identified as having certain learning difficulties. Male students have more specific learning difficulties than female students (55.3%: 44.7%). Specific learning difficulties were found in reading (26 students or 22.10%); in writing (23 students or 19.55%); and in mathematics (36 students or 30.60%). In assessing difficulties in writing, the researchers applied the practice of handwriting (beginner writing), spelling, and expressive writing. Informal and formal assessments were used to identify mathematical difficulties.
Model of Entrepreneurship in Elementary Schools in the Era of Independent Learning in the Age of Society 5.0
Authors: Gularso Dhiniaty
Published: March 2023

One of the goals of the Indonesian nation being established is to create general welfare for the people of Indonesia. The study aims at finding an appropriate entrepreneurial model in the field of basic education. This research method was a qualitative case study type. The research data was in the form of observations, interview transcripts and documentation. The research analysis used the Miles and Huberman Model which included data collection, data reduction, data presentation and drawing conclusions. The results showed that entrepreneurship in education is an effort to increase added value to a product/service in the profession that is involved in the field of education. Entrepreneurship in education is entrepreneurship that is relevant or in-line with the profession they are engaged in in the world of education so that professionalism is maintained and does not harm other parties in it. Principals, teachers, education staff can develop an entrepreneurial spirit by making education units. Its goal is to become a school that provides student learning experiences according to students' interests and talents according to the concept of independent learning and collaborated with technology and according to the demands of the current era in accordance with the demands of Society 5.0.
Are the Final Semester Examination Questions for Basic Science Concepts Made by Lecturers Have the Quality According to the Rasch Model?
Authors: Banawi Anasufi , Rumasoreng Muhammad Irfan , Basta Irawati , Latuconsina Adam
Published: March 2023

Analysis of Final semester examination items in the Basic Science Concepts course using the Rasch model has not been widely carried out, even though analyzing subject matter test items is a reflection of education and a noble task that can be carried out by educators in order to perfect and improve the quality of the tests they make themselves. The Rasch model is chosen so that the quality of the items does not depend on the test taker's ability to respond to answers. This study aims to describe the quality of the items from the Final Semester Examination on Basic Science Concepts course using the Rasch model. In this research used descriptive method. Data were collected through a documented study of 10 multiple choice questions in the form of answer sheets from 42 (6 male; 36 female) students of Madrasah Ibtidaiyah Teacher Education (PGMI) at a state university in Ambon. The Rasch model with the help of the Winstep software program is used in analyzing the items. The results showed that a number of items according to the Rasch model with test reliability were in the high category. Existing results can be used by lecturers as diagnostic material for achieving student knowledge competence and improving lectures.
Teacher Participation in Professional Learning Programs in Classroom Behavior Management
Authors: Paramita Pramesti Pradna , Andriani Fitri , Handayani Muryantinah Mulyo , Rusli Rusdi
Published: March 2023

Professional learning can help teachers to develop their knowledge and abilities to support their functions and roles as educators. However, studies show that most teachers in Indonesia have not been involved in continuing professional development. This study aims to describe the professional learning program that has been attended by elementary school teachers in Indonesia regarding classroom behavior management. The results of this study indicate that only some of the teacher participants stated that they had participated in a professional learning program on managing student behavior in the classroom. Organizers of the professional learning programs attended by teachers include the Ministry of Education, Culture, Research, and Technology, schools, universities, and other community members. Participants also shared about the benefits of these activities in managing student behavior in the classroom. The results of this study suggest the importance of implementing more professional learning programs that focus on managing student behavior in the classroom, which are designed effectively to have a direct impact on behavior management practices carried out by teachers in the classroom
The Feasibility of Interactive Multimedia and Online Quiz Based Gamification on Learning Management System (LMS) Thematic Learning Courses
Authors: Aprilia Tika , Ardiansyah Amalia Rizki , Riyanti Henni
Published: March 2023

The global Covid-19 pandemic has had a variety of impacts on the education sector including the deepening of the learning process. The college has transformed initially face-to-face learning activities into distance learning using online learning platform. However, the design of the platform used is still less varied from the type of media and learning applications, where lectures should be able to provoke motivation and the active role of students. This research aims to find out the feasibility results of interactive multimedia and online quiz based on integrated gamification learning system in supporting thematic learning courses. This study used a research and development approach, specifically the ADDIE development model design by Branch (2009). The research subjects are 2nd semester students who will take Thematic Learning courses in Elementary School of Universitas Negeri Yogyakarta and  Universitas PGRI Palembang. Data collection techniques use questionnaires and interviews. Data analysis uses descriptive analysis. The results showed that the validation results of media experts obtained a score of 3.88 with good categories and material expert validation obtained a score of 3.89 with a good category. Then the results of student responses to interactive multimedia products and online quiz based gamification at the time of the limited trial which included one to one trial obtained a score of 3.50 with a good category, small group trail obtained a score of 3.69 with a good category, and the field trial received a score of 3.95 with an very good category. Thus interactive multimedia and online quiz based gamification integrated LMS in thematic learning courses are said to be feasible and can be used in increasing student motivation and interaction in the lecture process.
Влияние внешних воздействий на ползучесть алюминиевых сплавов с микроскопическими включениями при комнатных температурах
Authors: Friha М. , Пшонкин Д.Е. , Скворцов П.А. , Николаев В.К. , Скворцов А.А.
Published: March 2023

It is devoted to the experimental study of the creep of an aluminum alloy containing microscopic inclusions. It was found that preliminary electric ignition (j<3· 106 A/m2) of the material leads to an increase in the creep of the samples. The reasons for the observed changes are associated by the authors with the formation of local areas of high mechanical stresses near the interface of the inclusion - matrix interface. The assessment of the level of emerging local thermoelastic stresses in aluminum deltaT ~ 35 MPa, as well as the characteristic size of such areas (~ 2 µm). The observed increase in creep is determined by the resultant effect of residual stresses and stresses of thermal nature, which contributes to the creation of additional local sources of deformation in the interfacial regions. Local stress concentrators lead to a local increase in the number of mobile dislocations, which is the main reason for the change in the mechanical properties of the aluminum alloy under consideration with microscopic inclusions.
Влияние массива субмикронных магнитных точек на намагниченность, критический ток и структуру вихревых конфигураций в ВТСП
Authors: Максимова А.Н. , Руднев И.А. , Кашурников В.А. , Мороз А.Н.
Published: March 2023

A vortex lattice in a high-temperature superconductor (HTS) with an array of submicron magnetic dots on the surface has been studied by the Monte Carlo method within the framework of a three-dimensional model of a layered high-temperature superconductor. The adjustment of the vortex lattice to an array of magnetic points was observed — ordered states arising in the process of remagnetization — configurations of one, two, three, or more vortex filaments fixed to a single magnetic point. The occurrence of these configurations was accompanied by peaks on the magnetization curve. The influence of the HTS anisotropy on the adjustment of the vortex lattice is analyzed. The ordered configurations of the vortex lattice are also associated with the non-monotonic nature of the dependences of the superconductor critical current on the magnetic field. The influence of temperature, magnetic moment of points, and film thickness on the critical current is investigated. With an increase in temperature and a decrease in the magnetization of magnetic points, the maximum of the critical current shifts towards a lower field. The structure of vortex filaments in the inhomogeneous field of a magnetic point is analyzed in detail. The mechanism of the influence of ordered vortex configurations on magnetization and critical current is discussed.
Одномерная динамика доменной границы в мультислойной ферромагнитной структуре
Authors: Кабанов Д.К. , Самсонов К.Ю. , Назаров В.Н. , Екомасов Е.Г.
Published: March 2023

Using the example of a seven-layer ferromagnetic structure with three thin (nanoscale) and four wide magnetic layers, possible scenarios of domain boundary dynamics in a multilayer ferromagnet are considered. Significant differences in the dynamics of the domain boundary were found in the presence of thin magnetic layers with increased and decreased values of the magnetic anisotropy constant. A diagram of possible scenarios of the dynamics of the domain boundary is constructed depending on the initial velocity of its movement and the distance between thin magnetic layers. The presence of a critical distance between thin magnetic layers separating the dynamics of the domain boundary into two regions with qualitatively different behavior of the system is revealed.
Фазовый состав, кристаллическая структура, диэлектрические и сегнетоэлектрические свойства тонких пленок Ba-=SUB=-2-=/SUB=-NdFeNb-=SUB=-4-=/SUB=-O-=SUB=-15-=/SUB=-, выращенных на подложке Si(001) в атмосфере кислорода
Authors: Павленко А.В. , Ильина Т.С. , Киселев Д.А. , Стрюков Д.В.
Published: March 2023

The phase composition, nanostructure, and properties of Ba2NdFeNb4O15/Si(001) multiferroic thin films have been studied by X-ray diffraction analysis, scanning probe microscopy, and capacitance-voltage characteristics analysis. The RF cathode sputtering in an oxygen atmosphere was used for films fabrication. It has been found that the obtained Ba2NdFeNb4O15 films are single-phase, impurity-free, polycrystalline textured (c-oriented), and the out-of-plane strain is 0.8%, which leads to the presence of ferroelectric properties at room temperature. It is shown that the surface roughness of the films is ~ 15.39 nm, the lateral size of the crystallites is ~ 134 nm, and the relative permittivity in the temperature range of -190…150 °C is 95-130. The reasons for the revealed regularities are discussed.
Boletín de indicadores de CTI del sector agropecuario: agenda dinámica nacional de investigación, desarrollo tecnológico e innovación (Agenda I+D+i)
Authors: Niño Edna Juliana , González Sandra Paola , Ramírez Angélica María , Moreno Maria Nancy , Uribe Galvis Claudia Patricia
Published: March 2023

La Agenda Dinámica Nacional de Investigación, Desarrollo Tecnológico e Innovación Agropecuaria (Agenda I+D+i), es un instrumento de planificación y gestión para la focalización de recursos y de acciones de I+D+i tendientes al fortalecimiento, dinamización y optimización del SNIA en torno al mejoramiento de la productividad y competitividad sectorial. Este instrumento recopila las demandas de I+D+i de diferentes cadenas productivas a nivel nacional y departamental.
Boletín Agroclimático Regional: mesa técnica agroclimática de Caldas febrero 2022
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Organización de las Naciones Unidas para la Alimentación y la Agricultura, Bogotá (Colombia),   Instituto de Hidrología, Meteorología y Estudios Ambientales, Bogotá (Colombia)
Published: March 2023

La Mesa Técnica Agroclimática (MTA) de Caldas, es un espacio de diálogo y análisis entre actores locales, nacionales y regionales, que busca comprender el posible comportamiento del clima a partir de información científica y conocimiento empírico, y generar recomendaciones para disminuir los riesgos asociados a la variabilidad climática en el sector agropecuario.
Boletín Agroclimático Regional: mesa técnica agroclimática de Valle del Cauca noviembre 2022
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Organización de las Naciones Unidas para la Alimentación y la Agricultura, Bogotá (Colombia),   Instituto de Hidrología, Meteorología y Estudios Ambientales, Bogotá (Colombia)
Published: March 2023

El IDEAM informa a la ciudadanía que durante octubre de 2022 persistieron las condiciones oceánicas y atmosféricas en los umbrales de La Niña.De acuerdo con las proyecciones del CPC/IRIse favorece que las condiciones de La Niña continúen hasta finales de año, con una probabilidaddel 86% y para el trimestre media móvil entre enero a marzo del 59%.
Boletín Agroclimático Regional: mesa técnica agroclimática de Magdalena, Cesar, La Guajira y Atlántico julio 2022
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Organización de las Naciones Unidas para la Alimentación y la Agricultura, Bogotá (Colombia),   Instituto de Hidrología, Meteorología y Estudios Ambientales, Bogotá (Colombia)
Published: March 2023

La Mesa Técnica Agroclimática (MTA) de Magdalena, Cesar, La Guajira y Atlántico, es un espacio de diálogo y análisis entre actores locales, regionales y nacionales, que busca comprender el posible comportamiento del clima. Se realizó reunión de carácter mixto (presencial/Virtual) donde se presentó la perspectiva climática para el trimestre julio– septiembre de 2022 para los departamentos de Magdalena, Cesar, La Guajira y Atlántico. Con base en esta información, se debatieron los posibles impactos y recomendaciones para el sector agropecuario de la región. La información generada se ha recopilado en el presente Boletín Agroclimático para la edición correspondiente del mes de julio de 2022 a cargo de FAO e IDEAM y se presenta por cultivo o sector productivo.
Boletín Agroclimático Regional: mesa técnica agroclimática de Sucre febrero 2022
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Organización de las Naciones Unidas para la Alimentación y la Agricultura, Bogotá (Colombia),   Instituto de Hidrología, Meteorología y Estudios Ambientales, Bogotá (Colombia)
Published: March 2023

La Mesa Técnica Agroclimática (MTA) de Sucre es un espacio de diálogo y análisis entre actores locales, nacionales y regionales, que busca comprender el posible comportamiento del clima a partir de información científica y conocimiento empírico, y generar recomendaciones para disminuir los riesgos asociados a la variabilidad climática en el sector agropecuario En esta oportunidad, no se realizó sesión de la Mesa, solamente se recopilaron recomendaciones. Con base en esta información, se discutieron impactos y recomendaciones para el sector agrícola. La información generada, se ha recopilado en el presente Boletín Agroclimático.
Exploring women’s experiences on an internet-delivered intervention to prevent depression and enhance subjective well-being during the perinatal period: A qualitative study (Preprint)
Authors: Valla Lisbeth , Haga Silje Marie , Niegel Susan Garthus , Drozd Filip
Published: March 2023

BACKGROUND

Background: The perinatal period is a vulnerable time where women are at increased risk of depression. “Mamma Mia” is a universal preventive internet intervention offered to pregnant women with the primary goals to prevent the onset or worsening of depression and enhance subjective well-being during the perinatal period. However, treatment dropout from internet-based interventions is often reported. The study aim was to acquire an understanding of different experiences among participants who dropped out of the Mamma Mia intervention during pregnancy, compared to the participants who dropped out during the postpartum and follow-up phase.

OBJECTIVE

The study aim was thus to acquire an understanding of different experiences among participants who dropped out of the intervention during pregnancy, compared to the participants who dropped out during the postpartum and follow-up phase.

METHODS

Methods: A total of 16 women from a larger randomized controlled trial (Mamma Mia) were interviewed with individual semi-structured interviews following a strengths, weaknesses, opportunities, and threats format. Of the 16 participants included, eight women dropped out early in the intervention during pregnancy (pregnancy group), while eight women dropped out later, after giving birth (postpartum and follow-up group). Data were analyzed using the framework approach.

RESULTS

Results: The results showed that there were differences between the groups. In general, more participants in the postpartum and follow-up group reported that the program was user-friendly. They became more aware of their own thoughts and feelings and perceived that the program had provided them with more new knowledge and practical information than the participants in the pregnancy group. Respondents in both groups suggested several opportunities for improving the program.

CONCLUSIONS

Conclusions: There were differences between women who dropped out of the intervention during pregnancy and the postpartum and follow-up phase. The reported differences between groups should be further examined.
Blockchain Technology and its effect on Environment: A Comparative Study between Proof-Of-Work and Proof-Of-Stake
Authors: Mandal Surajit
Published: March 2023

With the growing interest in cryptocurrency and blockchain by renowned companies environmental issues are also being highlighted due to the exhaustion of huge amounts of energy. This paper aims to give a primary overview of how cryptocurrencies are created by using the proof of work method and how blockchain works. Statistical references have been given to elaborate on how this process consumes high energy and increases carbon footprint causing harm to the environment. In comparison, the proof of stake method has established itself as an eco-friendly alternative. Ethereum has already manifested that using PoS can resolve the problem and is also safe for the environment.
Vibration measurement by projection of phase-modulated and amplitude-modulated structured light
Authors: Barbosa Eduardo Acedo , Gonçalves Dib Luiz Felipe , Henrique Marlene Correa , Saita Marcelo Tadao
Published: March 2023

Most of the whole-field optical methods for vibration measurement have low sensitivity when the points of the studied surface vibrate with the same amplitude. Those techniques also usually require complex and/or expensive solutions which are difficult to implement in engineering processes when the vibration amplitudes are relatively high. In order to overcome those limitations we propose a method for out-of-plane vibration measurement which uses structured light projection. The vibrating surface is obliquely illuminated by straight and parallel interference fringes produced by a Twyman-Green interferometer with a 532-nm laser as light source. In order to enable fringe visualization two techniques were employed, namely, the phase modulation of the fringe pattern by using a vibrating mirror in the interferometer, and a stroboscopic illumination by using a Fabry-Perot etalon amplitude modulator. We demonstrated the technique by measuring the vibration amplitudes of small objects in the millimeter and submillimeter range.
The Preference Selection Index Performance in Large Alternatives’ Decisions to Support the AHP: The Case of a University Selection
Authors: Obeidat Mohammed Said , Ababneh Wiam , Al Theeb Nader
Published: March 2023

Two multi-criteria decision making approaches were implemented in this paper for selecting a U.S. university considering the industrial engineering doctorate degree as a case study. The Preference Selection Index (PSI) and the Analytical Hierarchy Process (AHP) were these approaches. A total of 37 universities and 20 attributes were considered. The attributes were related to the university reputation, location, financial, and ease of admission. In this paper, the PSI model was initially constructed and its results were adopted in the AHP model. Data of this paper were obtained from the US News and World Report, Times Higher Education (THE) and other well-known organizations. Results proved that the PSI approach could be used in decisions with large number of alternatives and attributes, and the PSI model was able in making the AHP model requirements easier, by reducing the criteria and alternatives. In both the PSI and the AHP models, the university reputation had the highest preferences of students, followed by the ease of admission, financial and then location. Sensitivity analyses for the PSI and AHP models were performed to evaluate the accuracy of the results. Results of this study could be applied in other students’ disciplines for finding a suitable university.
An Intelligent System for Heart Disease Diagnosis using Regularized Deep Neural Network
Authors: Rani Pooja , Kumar Rajneesh , Jain Anurag
Published: March 2023

Heart disease is one of the deadly diseases. Timely detection of the disease can prevent mortality. In this paper, an intelligent system is proposed for the diagnosis of heart disease using clinical parameters at early stages. The system is developed using the Regularized Deep Neural Network model (Reg-DNN). Cleveland heart disease dataset has been used for training the model. Regularization has been achieved by using dropout and L2 regularization. Efficiency of Reg-DNN was evaluated by using hold-out validation method.70% data was used for training the model and 30% data was used for testing the model. Results indicate that Reg-DNN provided better performance than conventional DNN. Regularization has helped to overcome overfitting. Reg-DNN has achieved an accuracy of 94.79%. Results achieved are quite promising as compared to existing systems in the literature.  Authors developed a system containing a graphical user interface. So, the system can be easily used by anyone to diagnose heart disease using the clinical parameters.
A Blueprint design of optical-based wristband for non-invasive and continuous health status monitoring of sickle cell disease patients
Authors: Mehmood Ali Syed , Ghufran Khalid S. , Ali Uzma , Hameed Kamran
Published: March 2023

Sickle cell disease is a group of health disorders that affect hemoglobin in red blood cells. Sickle cell disease causes multiple manifestations and complications, including infections, delayed growth, pain crisis, and multi-organs damage. These complications can disturb the patients' vital signs, including body temperature, heart rate, and oxygen saturation. The decline in hemoglobin level is another indication of sickle cell disease due to abnormal hemoglobin that distorts red blood cells resulting in sickle cell anemia. RBCs, also called erythrocytes, are found in the blood and responsible for carrying oxygen to the body tissues attached to the hemoglobin. Optical microscopy can detect and monitor sickle cell disease, but it requires a blood sample and offline analysis, which is a time-consuming process. There is currently no known technology available to provide non-invasive monitoring solutions for sickle cell disease patients' health. Therefore, a need arises for a non-invasive and continuous monitoring solution to continuously check on sickle cell disease patients, which can be transformed into a wearable monitoring device. The proposed optical wristband consists of optical sensors that provide non-invasive and continuous health status monitoring of sickle cell disease patients using key vital signs and hemoglobin levels. A comparative study was performed among 21 participants and equally divided into three groups (non-anemic, anemic, and sickle cell disease patients). The data was collected from optical sensors, Arduino used as a processor, and continuously monitors the patient's vital signs and hemoglobin levels. Abnormal reading of any parameter alerts the user of any unhealthy status, and the parameter's trend assists the clinician in patient assessment. The body temperature and oxygen saturation levels of the anemic patients were found in the normal ranges, but the heart rate of three patients and hemoglobin of all the participants were found in aberrant ranges. The vital signs and hemoglobin levels of all sickle cell disease patients were beyond the normal ranges and significantly different (p>0.001) than non-anemic and anemic groups. Therefore, these physiological parameters monitoring has clinical importance for sickle cell disease management and early treatment.
The DC fast charging architecture for implementing Vehicle-To-Grid technology within a micro-grid
Authors: Ashokra Mr. Surwase Ajaykumar , Bagale Prof. L. V.
Published: March 2023

Abstract: Electric vehicle (EV) batteries have the potential to serve as energy storage devices in micro-grids, aiding in energy management by storing excess energy from the grid (Grid-To-Vehicle, G2V) and supplying energy back to the grid when needed (Vehicle-To-Grid, V2G). To implement this concept, appropriate infrastructure and control systems must be developed. This paper presents an architecture for integrating a V2G-G2V system in a micro-grid using level-3 fast charging technology forEVs. A micro-grid test system is modeled with a dc fast charging station for connecting EVs, and simulation studies are conducted to demonstrate power transfer through V2G-G2V modes of operation. Test results indicate that EV batteries regulate active power in the micro-grid, with the charging station design ensuring minimal harmonic distortion of grid-injected current. Furthermore, the controller exhibits excellent dynamic performance in terms of maintaining dc bus voltage stability.
Analisis Wacana Kritis Norman Fairclough dalam Stand-Up Comedy Mamat Alkatiri pada Program "Somasi"
Authors: Sasmitha Ni Wayan Ditha
Published: March 2023

Tulisan ini menganalisis teks komedi stand-up Mamat Alkatiri dalam program Somasi pada kanal Youtube Close the Door milik Deddy Corbuzier. Tulisan ini menggunakan analisis wacana kritis (critical discourse analysis) dari Norman Fairclough. Dengan struktur wacana komedi, Mamat menyampaikan kekecewaannya terhadap pemerintah, khususnya dalam hal: (1) Pembagian tugas atau kinerja yang masih tumpang tindih; (2) Sifat pejabat publik yang terkesan 'anti kritik'; (3) Sistem pengambilan keputusan yang menuai pro dan kontra. Fairclough menjelaskan bahwa praktik diskursus dan keadaan sosio-kultural mempengaruhi wacana dibangun. Berdasarkan hasil analisis, wacana Mamat tidak dapat dilepaskan dari praktik diskursus yang meliputi; organisasi media yang memproduksi penampilannya, serta sifat-sifat audiens Somasi yang mampu menerima dan menegosiasi penampilan komediannya. Kemudian keadaan sosio-kultural yang mempengaruhi teks komedi Mamat di antaranya; hadirnya fenomena somasi di Indonesia sebagai dimensi situasional, institusional pemerintahan di Indonesia khususnya pada manajemen birokrasi dan sistem pengambilan keputusan, dimensi situasional yang terjadi di Indonesia seperti hadirnya fenomena somasi yang secara tidak langsung memberikan tekanan (represi) terhadap kebebasan dalam berekspresi. Wacana Mamat juga dipengaruhi semangat political culture yang dimiliki oleh Mamat, semangat ini sama dengan peluang cyberspace dalam meraih sistem demokrasi yang didambakan oleh khalayak cyberspace. Kritik yang disampaikan Mamat menyiratkan pesan-pesan kepada masyarakat untuk merefleksikan kembali, sudahkah era pemerintahan saat ini memberikan ruang publik yang demokratis.
Mathematical modelling of process planning problem
Authors: Panneerselvam Sivasankaran
Published: March 2023

This paper discusses a mathematical modelling of process planning problem. As everybody knows, a component has a set of operations derived from its design. Each operation can be performed by a set of machines, which are associated with it. Each such machine has a setup cost and processing cost per unit period. The goal is to choose the machine for each operation in such a way that the total cost, which is the sum of the setup costs and processing costs of the machines associated with the operations of the component, is minimised by taking the desired production volume of that component per period into account. The topic of processing planning is explored in this study as a linear programming model.