bluuebunny/crossref_metadata_2025 huggingface dataset:
Prediction of test results to determine the hydraulic resistance coefficient of an axially symmetrical check valve
Authors: Kuzin S. A. , Kravets S. B.
Published: June 2023

The urgency of the paper is determined by the necessity to predict the results of tests for determining the coefficient of hydraulic resistance of axially symmetrical check valve DN 100-600 with operating pressure up to 20 MPa and operating temperature from plus 50C to plus 3500C according to TS 6981-254-08847871-07. This paper suggests to reduce the volume of tests by excluding the tests for intermediate samples of valves (DN 100, DN125, DN 200, DN 300, DN 500, DN 600) situated in DN between the valve type models (DN 100, DN 175, DN 400) and replaced the tests by calculations in the programme module ANSYS CFX of the calculation complex ANSYS. The results of the tests for determining the coefficient of hydraulic resistance are given. An estimate of hydraulic resistance coefficient values is offered and recommendations for its determination are given. The experimental determination of hydraulic characteristics was carried out in the region of quadratic resistance and in absence of cavitation (the tests were done on water). The region of quadratic resistance comes at Reynolds numbers Re ≥ 2 × 104 for check valve of nominal diameters DN ≤ 250. The region of quadratic resistance ReKB is determined in the process of experimental determination of drag and flow capacity factors for valves of nominal diameters DN ≥ 250. The procedure of determination of ReKB is described in 7.2.3 of GOST 55508-2013. These test results for determination of hydraulic resistance coefficient for valves DN 150, DN 175, DN 400 according to TU 6981-254-08847871-07 can be used when developing acceptance test programs to set the number of tested samples according to the design features and number of versions of check valves (DN 100, DN125, DN 200, DN 300, DN 500, DN 600), replacing the testing by calculation.
Input data to match model and prototype states of WWER NPP
Authors: Molev I. A. , Solovyev D. A. , Lobarev A. L. , Plotnikov D. A. , Tahash H. A. , Chernov E. V.
Published: June 2023

The paper considers some possible input data of NPP power unit model for solving the problem of model state matching with prototype state. In the course of work on matching the state of NPP model with the prototype, a numerical experiment using full-scale modeling complex PROSTOR was conducted. Its essence was to obtain steady states of the model with capacity from 94% to 104% with a step of 0,05%. For modeling we used data of Kalinin NPP unit 3 loading 4 on 248 effective days. When analyzing the results of the numerical experiment, two effects were found. One of them, expressed in the bend of the derivative of the obtained graph, is connected with reaching the upper limit of the possibility to regulate the pressure in the main steam collector. The regulating valves on the turbine generator are the executing mechanism of pressure regulator in main steam collector. At the break of the graph they open at 100%, which causes further inability to regulate pressure. The pressure in the main steam collector starts to increase. This effect corresponds to the real processes occurring at the NPP. In this case, as one of the model tuning parameters, it is proposed to use the adaptive coefficient to the concentration of boric acid in the reactor, for the control of which, it is proposed to use a mathematical boric regulator. It was also shown that it is impossible to accurately control the pressure in the reactor due to the peculiarities of operation of the volume compensator electric heaters automatics. In this regard, it was proposed to use an additional mathematical volume compensator electric heaters regulator to match the state of the model with the prototype. These regulators have been successfully tested as part of the PROSTOR software package to match the states of the model and the prototype.
Potential and possibility of extending the campaign to increase VVER-1000 power units on sliding distribution of the secondary circuit
Authors: Grachev A. S. , Lapkis A. A. , Smolin A. Yu.
Published: June 2023

The paper considers the efficiency and possibility of implementing into the operational practice of VVER-1000 power units the campaign extension mode at the sliding pressure of the second circuit. The history of research of Russian nuclear scientists in terms of extending the campaign of VVER reactors is considered. It is shown that reducing the pressure of fresh steam within the permissible limits will release additional reactivity due to the release of the temperature effect and generate additional energy during the operation of the unit on the power effect. A mathematical model of changes in the main parameters of the reactor plant has been compiled, including the reactivity balance equations, the Stodola-Flugel equation for the turbine, the equations of thermal balance and heat transfer in the steam generator. The calculation of the expected increase in electricity generation for modern fuel loads of VVER-1000 reactors has been performed. The degree of compliance of the proposed regime with the current technological limitations of the VVER-1000 «large series» power unit is analyzed. The results of the analysis were confirmed by numerical experiment on a multifunctional mode analyzer of the VVER-1000 reactor unit developed by the MEPhI Research Institute, built on the basis of the ENIKAD medium and the certified diffusion neutron-physical code PROSTOR. Conclusions are drawn about the possibility of introducing the proposed regime into the operational practice of modern VVER-1000 power units.
Information and analysis service and technology for monitoring potentially hazardous areas from satellite multi-spectral sensing data
Authors: Chichkova E. F. , Kochin D. A. , Rogachev S. A.
Published: June 2023

An information and analytical service is presented, created on the basis of the practical implementation of innovative technologies in the processing of multispectral satellite data and the provision of monitoring results for potentially hazardous areas in various environments. Monitoring technologies and methods for identifying various types of underlying surfaces, including the layer-by-layer method of monitoring, are considered. Descriptions are given of specially developed methods for automatically determining the state parameters of given objects and phenomena according to multispectral aerospace sensing data. It is proposed to use digital maps of geospatial layers of information as analog models of the parameters of objects and natural areas controlled from space. The initial data for building models are aerospace information of various spatial resolutions, as well as route survey materials. A geoportal technology for presenting the results of recognition of potentially hazardous areas has been created. The developed service can be used to solve various industry problems of monitoring hazardous phenomena and background parameters of natural environments, comparable with the spatial and temporal resolution of aerospace sensing data.
Analysis of the SpaceFibre technology for the high-bandwidth onboard networks
Authors: Suvorova E. A. , Stepanov V. E. , Olenev V. L.
Published: June 2023

The paper presents an analysis of a prospective international standard SpaceFibre for on board data exchange for different types of aircraft. Paper provides the rationale for using of this standard for new generation on-board networks. The obtained results are based on many years of experience with the SpaceWire/SpaceFibre family of open international standards. The authors present the main problems of SpaceFibre, as well as ways to solve them. The first problem is related to the use of multi-channel data transmission in prospective Russian projects, as well as the need to increase throughput using existing equipment and physical cables. It is necessary to develop new transmission methods and algorithms and create a completely Russian version of the multilane level for the described standard. The second problem relates to the organization of data transmission in SpaceFibre networks with a large number of nodes and a complex scheme of data transfer flows, it is a consequence of an insufficiently developed network level of the standard. The authors give possible ways to solve the identified inconsistences of the standard using the concept of software-reconfigurable networks. The finalization of the SpaceFibre standard in terms of the discussed problems will improve the efficiency of the protocol itself, as well as take into account all possible comments before the stage of creating of a Russian State Standard for SpaceFibre.
Peranan Koperasi Dalam Pengembangan Sistem Agribisnis Kakao (Studi Kasus: Koperasi Perkebunan Kakao Bireuen)
Authors: Jamil Muhammad , Budi Setia
Published: June 2023

There is still great potential for the development of cocoa plants in Kabupaten Bireuen is a great opportunity to improve cocoa agribusiness in a sustainable, one of them is through institutional roles. However, the Kabupaten Bireuen government still has several problems in running the cocoa agribusiness system starting from the upstream subsystem to support services. Problems in the upstream subsystem and farming, namely farmers have not been able to fully implement the frequent harvest system, pruning, sanitizing and fertilizing (PsPSP) as well as fermentation. Even though the Bireuen Cocoa Plantation Cooperative has provided trainings related to the PsPSP system and the fermentation. This study aims to determine the cocoa agribusiness system in Kabupaten Bireuen and to find out the role of the Cocoa Plantation Cooperative that has been carried out so far. The sample criteria in this study were 34 cocoa farmers who were active members of the Bireuen Cocoa Plantation Cooperative. Data analysis in this study used a qualitative descriptive method with data measurement using a Likert scale.  The  results  showed  that  the  cocoa  agribusiness  system  in  Kabupaten Bireuennot well integrated, while in general the role of cooperatives in the development  of  the  cocoa  agribusiness  system  is  large  with  an  index  value  of 69.92%.The role of cooperatives in aid distribution activities is categorized as large with an index value of 73.94%,training activities have a big role with the category 79.65%, mentoring activities have a big role with an index value of 67.12% and the collection of results has a small role with an index value of 58.97%.
La metamorfosis transformacional contemporánea: de la ciudad a la metrópoli. Hacia una configuración teórica-conceptual explicativa del proceso
Authors: Sousa-González Eduardo
Published: June 2023

Desde la posición teórica que aquí se propone, el inicio de todo este proceso que involucra en un espacio-tiempo-diferencial, la transformación territorial de una ciudad a una metrópoli, está permeado por múltiples variables intervinientes tanto endógenas vinculadas al locus typicus de referencia, así como a factores exógenos propios, entre otros, los referidos a la mundialización contemporánea; esto, como un proceso evolutivo que no ha terminado de acabar. Entonces, el propósito inicial de este razonamiento deductivo que a continuación se plantea, tiene como objetivo central avanzar en el conocimiento de esta expresión urbana, que tiende a revelarse espacialmente en esa metamorfosis que la trasforma, la consolida y tiende a replicar paulatinamente a una ciudad, configurándola en una conurbación metropolitana de características sui géneris
The environmental and economic role of green taxes in Denmark for the period 2000-2019
Authors: Dashoor Zainab , Abdullah Ahmed
Published: June 2023

The increasing use of fossil fuels has exacerbated the negative effects of climate change and the expansion of environmental problems in the world in general and Denmark in particular, and it has become necessary to search for new mechanisms for the purpose of directing economic and environmental policies towards the use of new tools to modify consumption and investment behavior in the field of energy use. The study is to show the historical development of green taxes in Denmark as well as the environmental and economic role of green taxes. Energy taxes in increasing renewable investments and employment and increasing the production of green electricity as well as contributing to reducing emissions rates of greenhouse gases. Transfer taxes in shift Towards the use of cars that use electricity energy, and the imposition of taxes on pollution / resources has environmental and economic effects, and the study recommended the need to benefit from the Danish experience in the field of energy taxation because of its economic and environmental effects
Can It Get Out of Predicament? Japan's Policy towards DPRK Nuclear Issue
Authors:   Institute of Korean Studies, Li Zhonglin , Chen Wei , He Qisong
Published: June 2023

This study aims to examine Japan's policy towards DPRK nuclear issue. It summarizes current Japan's policy pattern towards DPRK nuclear issue. Japan's entrenched marginal position in the Northeast Asian security architecture fundamentally shaped the outward appearance of Japan's policy towards the DPRK nuclear issue. However, there is still some room for Japan to play out. Some factors determine why current Japan's policy towards DPRK nuclear issue is ineffective. These factors include the following: Japan did not handle its relations with its neighbors China, South Korea, and Russia well, but instead further deteriorated the three pairs of bilateral relations; China, Russia, and North Korea constitute a potential alliance, further increasing the pressure on Japan; Japan's domestic public opinion abducted the government's DPRK policy; The last assumption is that current Japan is a country without nuclear weapons. Japan's willingness and ability to deal with the above issues will determine the future trajectory and effectiveness of its policy towards the DPRK nuclear issue.
What Makes Swing Voters Participate in Protests? The Effects of Voting Patterns and Election Cycles on Participation in Candlelight Protests in South Korea
Authors:   Institute of Korean Studies, Cha Hyun-Jin
Published: June 2023

This paper aims to analyze how the traits of candlelight protest participants have changed from 2004 to 2017 in South Korea. While previous studies have typically identified these traits of the candlelight protesters based on a single survey, this paper examines the change of protest participants using a multi-level analysis. This study argues that voter type and election cycles have a significant impact on an individual's decision to participate in candlelight protests. To be specific, swing voters are less likely to participate in a candlelight protest when the next election is scheduled either too soon or too far. Core liberal voters with a high degree of motivation are more likely to take part in a candlelight protest when the distance from the next election is close, while core conservative voters with a low degree of motivation are not affected by the distance from the next election. This study contributes on both sub-fields, voting behaviors and contentious politics, by combining individuals' voting patterns with political opportunity structures. Survey data (2004, 2010, 2017) conducted by the Korean Political Science Association (KPSA) and the Korean Social Science Data Center (KSSDC) provide empirical support for the arguments.
AN EVALUATION ON THE USE OF CLOUD COMPUTING TECHNOLOGY IN THE CONTEXT OF SOCIAL MEDIA ECONOMY AND CONSUMPTION CULTURE
Authors: Arman Zengi Cennet , Kılıçaslan Emine , Yücel Duygu
Published: June 2023

Günümüzde sosyal medya kavramı, günlük yaşantımızın bir parçası olmuştur. Sosyal medyanın gücü eğitimden siyasete üretimden tüketime, ekonomiden pazarlamaya devrimsel bir nitelik taşır hale gelmiştir. Temelinde insan olan bu mecranın
endüstriyel bir gerçek olduğu unutulmamalıdır. Bu sebeple sosyal medyayı anlamak, yorumlamak, tüm yönleriyle ele almak önemlidir. Yeni gençlik ya da bilinen tanımıyla Z kuşağı, kişisel hesapları aracılığıyla dünyaya erişmekte,
protestolar gerçekleştirmekte, finansal varlıklarını yönetmekte, sosyalleşmekte ve ekonomiyi de biçimlendirmektedir. Günümüz ekonomisinde, geleneksellikten çıkılmış, kabul edilenin aksine emek gücüyle çalışanların yerine çevrimiçi
sanal bir ortamda kar-zarar hesaplarını, arz – talep mekanizmalarını oluşturmaktadır. Böyle bir çalışma ortamının oluşmasıyla istihdam edilme şekilleri değişmekte, üretimde geleneksel üretim anlayışından farklı olarak üretmekten
ziyade mal ve hizmeti kullananlardan faydalanarak üretimlerini gerçekleştirmektedirler. Bunun sonucunda ise buna uygun arz talep oluşturulmakta bu da yeni bir ekonomik sistemi beraberinde getirmektedir. Sosyal medya ekonomisi olarak
nitelendirilen bu kavram, serbest piyasa ekonomisi içinde kabullenilmek zorunda kalınmıştır. Sosyal medya teknolojinin gelişim göstermesiyle kendini yenilemektedir. Bulut bilişim teknolojisi ise sosyal medya açısından veri toplama
için önem taşımaktadır. Kısaca, bulut bilişim topladığı verileri internet üzerinden bir ağ olan “bulut” üzerinde depolandığı ve işlendiği bir bilgi teknolojisi modelidir. Bu çalışmanın amacı bir sosyal medya platformu olan Facebook’da
bulut bilişim teknolojisinin tüketici satın alma davranışını etkileyerek üretimi ve tüketimi nasıl yönlendirdiğini değerlendirmektir. Çalışma bu yönüyle yapılan çalışmalardan ayrışmakta ve yapılacak olan çalışmalara referans olması
beklenmektedir.
Examining The Compliance of Reading Activities in 6th Grade Turkish Textbooks with Critical Reading Goals
Authors: KESİCİ Salih
Published: June 2023

6.sınıf Türkçe ders kitaplarındaki okuma etkinliklerinin eleştirel okuma hedeflerine uygunluğunun incelenmesini amaçlayan bu çalışmanın örneklemini iki farklı yayın evine ait 6.sınıf Türkçe ders kitapları oluşturmaktadır. Bulguları
sunma kolaylığı sağlaması açısından ilgili kitaplara TRK6A ve TRK6B kodları verilmiştir. Araştırmada nitel araştırma yöntemlerinden doküman analizi yöntemi kullanılmıştır. Araştırmada veri toplama aracı olarak Eleştirel Okuma Ölçütü
kullanılmıştır. 50 maddeden oluşan ölçek aracılığıyla ders kitaplarında yer alan toplamda 48 adet okuma metni etkinliklerin temalara dağılımı ve etkinliklerin içerdikleri ölçüt maddelerinin sıklığı açısından incelenmiştir. Araştırmanın
son bölümünde iki kitap karşılaştırılmıştır. Araştırma sonuçlarına göre TRK6A kodlu kitapta yer alan 213 etkinliğin 102 sinin TRK6B kodlu kitapta yer alan 173 etkinliğin 75’inin eleştirel okuma hedeflerine uygun olduğu görülmüştür.
İki kitapta da yer alan eleştirel okuma etkinliklerinin çoğunlukla Erdemler temasına ait okuma metinlerinde olduğu görülür. İki kitapta da en az eleştirel okuma hedeflerine uygun etkinlik içeren tema Sağlık ve Spor teması olmuştur.
Etkinliklerin içerdikleri ölçüt maddelerinin sıklıkları incelendiğinde TRK6A kodlu kitaptaki etkinlikler çoğunlukla Çıkarımda bulunma ölçüt maddesine uygunken TRK6B kodlu kitaptaki etkinlikler çoğunlukla Okunan eserle ilgili kendi
duygu ve düşüncelerini belirleme ölçüt maddesine uygundur. İki kitabın karşılaştırılması bölümünde ise TRK6A kodlu kitabın sayısal anlamda temadaki etkinlik sayısı, ölçüte uygun etkinlik sayısı ve etkinlik sıklığı bakımından TRK6B
kodlu kitaptan yüksek sayıda etkinlik içerdiği görülmüştür.
A Comparative Analysıs of The Activities on The Subject of Word Types in Turkish Textbooks in Terms of Various Variables: 6th Grade Example
Authors: KARASAKALOĞLU Nuri , ALCAN Yasemin
Published: June 2023

Bu araştırma, 6. sınıf Türkçe ders kitaplarındaki sözcük türleri konusu etkinliklerinin temalara, konu alt başlıklarına ve bilişsel basamaklara dağılımları açısından incelenmesi, karşılaştırılması ve değerlendirilmesini amaçlamaktadır.
Araştırmada, Ortaokul ve İmam Hatip Ortaokulu 6. Sınıf Türkçe MEB Yayınları Ders Kitabı (2018), Ortaokul ve İmam Hatip Ortaokulu 6. Sınıf Türkçe MEB Yayınları Ders Kitabı (2019) ve Ortaokul ve İmam Hatip Ortaokulu 6. Sınıf Türkçe
Ata Yayıncılık Ders Kitabı (2019) olmak üzere üç farklı kitap, belirlenen ölçütler çerçevesinde, taşıdıkları benzerlik ve farklılıklar bakımından karşılaştırılarak değerlendirilmiştir. Araştırma, tarama modelinde betimsel bir araştırma
olarak desenlenmiştir. Araştırmada ulaşılan verilerin analiz edilmesinde içerik analizi tekniği kullanılmıştır. İçerik analizi tekniğine uygun şekilde elde edilen veriler üzerinde yüzde ve frekans analizleri gerçekleştirilmiştir.
Araştırmada doküman olarak Milli Eğitim Bakanlığı Talim ve Terbiye Kurulu Başkanlığı tarafından 2022-2023 eğitim öğretim yılında 6. sınıflarda okutulmak üzere kabul edilen üç farklı ders kitabının kullanılması tercih edilmiştir.
Araştırmada, ders kitaplarında yer alan etkinlik sayısı dağılımlarının konunun öğretimi açısından tam anlamıyla yeterli kabul edilemeyeceği, etkinliklerdeki sözcük türleri konusu alt başlıklarına yer verme durumunun başlıkların
genelinde orantılı olmadığı ve etkinliklerin bilişsel alan basamaklarının yalnızca alt düzey basamaklarına hitap ettiği tespit edilmiştir. Bu sonuçlardan hareketle araştırmada, Türkçe ders kitaplarında bulunan sözcük türleri konusu
etkinliklerinin temalara, konu alt başlıklarına ve bilişsel alan basamaklarına dağılım gibi açılardan düzenlenmesine ilişkin çeşitli önerilerde bulunulmuştur.
Analisis Faktor-Faktor yang Memengaruhi Ekspor Kopi di Timor-Leste
Authors: Faria Freitas Vionencia P.S. , Nuryartono Nunung , Rifin Amzul
Published: June 2023

The economy of Timor-Leste depends more on the oil and gas sector. Therefore, the non-oil and gas sector has been less of a priority in the political agenda of this country. However, the studies on the economy in Timor-Leste, especially on commodity exports are underdeveloped, based on that, this research will discuss coffee production as a potential commodity and consider it as the largest share of the non-oil economy among other export products in Timor-Leste. The puRp. . ose of this study is to have a deeper comprehension of the business context, and the coffee export barriers and to identify and analyze the factors that might influence coffee exports. This research study used qualitative descriptive and quantitative analysis. The qualitative data was obtained through interviews with three exporters in Timor-Leste, and quantitative data using secondary data was obtained through the panel data analysis that was used for over 14 years (2004-2018) in seven importing countries. The data is analyzed by approaching descriptive and gravity models. Based on the results of the qualitative descriptive research on the context of the coffee business in Timor-Leste, there is a marketing flow that starts from farmers to retailers and will be passed on to the companies or from farmers directly to the companies. One of the constraints that are faced by exporting companies is the document procedure process which usually will take a long bureaucracy. Furthermore, the results of the study by using the gravity model explain that the variables that have a significant effect on the volume of coffee exports in Timor-Leste are the real GDP per capita of the exporting, and importing countries, and the total population of the importing countries.
Pengaruh Kepercayaan Merek, Citra Merek, dan Promosi Terhadap Keputusan Pemilihan Platform Pembelian Buah dan Sayur Online
Authors: Utami Diane Novi , Trimo Lucyana , Judawinata M. Gunardi , Suminartika Eti
Published: June 2023

The use of internet is not only as information and communication media, currently the internet is also useful in online business transactions. The agricultural sector is a potential sector to grow along with the high growth of e-commerce in Indonesia. Nowadays, platforms that specialize in selling fruits and vegetables online are constantly emerging. One of the factors that causing the increase in online fruit and vegetable purchases is the Covid-19 pandemic. Despite the continuous growth, it turns out that there are still some consumers who are reluctant to make purchases online with one of the reasons being worried about product mismatches if shopping through an online platform. This research aimed to analyze the influence of consumer perceptions of brand trust, brand image, and promotion in choosing an online fruit and vegetable purchasing platform during the Covid-19 pandemic in the Greater Jakarta area. This research used a survey method with a sampling technique using purposive sampling and the data in this research analyzed with descriptive analysis and SEM-PLS analysis. The conclusion in this research showed that consumer perceptions of brand trust, brand image and promotion have a positive and significant effect on the decision to choose an online fruit and vegetable purchasing platform in Jabodetabek during the Covid-19 pandemic. The sense of security provided by the platform, the quality of the products offered and also the many attractive offers available are the most dominant things considered by respondents in choosing an online fruit and vegetable purchasing platform.
Self–Brand Connection and the Decision to Purchase Counterfeit and Original Luxury Brands in Tanzania
Authors: Frida Thomas Pacho
Published: June 2023

The research employed the method of Perceived Counterfeit Detection (PCD) to determine the significance of individuals' considerations in determining their decision to purchase original luxury brands. The study explored the relationship between self-brand connection and the purchase of counterfeit luxury brands, and also, evaluated the influence of economic benefits. The research was conducted through a survey of prospective luxury goods consumers, both original and counterfeit, in six malls located in two cities using a questionnaire. A sample of 930 participants was used, and the hypotheses were tested using a structural equation model.  The findings indicate that an individual's self-concept might play a role in deciding whether to purchase an original or counterfeit luxury brand. It is noteworthy that the Perceived Counterfeit Detection completely influenced the relationship between self-brand connection and the decision to buy an original luxury brand. Furthermore, the study discovered that economic advantages intensified the inclination of consumers to buy counterfeit products in emerging economies. This contributes to the Social Identity Theory, suggesting that in scenarios heavily influenced by personal development, social pressure from one's social group might override individual moral considerations such as self-brand connection. The findings of this study hold considerable importance for managers and marketers as they enhance their comprehension of the influential role that individuals play in influencing the purchase of luxury brands. Marketing strategies need to consider the influence of family and social groups on buying choices, and advertisements should be customized accordingly.
The Spread of “Tradisi Mandi Uap” as a Track Identification of Spices in Indonesia
Authors: Mentari Gaya , Yuhaswita Yuhaswita
Published: June 2023

The presence of spices in the archipelago became one of the pioneers for various cultural manifestations that appeared in various regions of the Indonesian archipelago. One form of the presence of spices that is reflected in this cultural form is the traditional steam bath tradition. The aims of the study were to 1) describe the distribution of bathing habits using spice water in several regions in the Indonesian archipelago. 2) mapping the distribution plots of spices in the archipelago through local traditions that have existed and are still alive in the community in certain areas of the archipelago; 3) showing the traditional steam bath tradition which has become a habit and has the potential to become an intangible cultural heritage in Indonesia. In conducting the study, it was used to search for sources of information from literature studies related to the spice bath tradition. The method used is a qualitative method by describing a map of the distribution of the spice bath tradition in the regions of the archipelago. The results of the study show that traditional steam bathing is a spice bath tradition that is spread across the eight regions in Indonesia and is dominated by people who have a background of Malay cultural influence. The eight areas include North Sumatra (Batak Karo), Jambi (Tanjung Bajo Village), Palembang, Pontianak (Mempawah), West Kalimantan (Sintang Regency), Sambas Regency, North Kayong Regency (Pangkalan Buton Village), and East Belitung
Effect of STEM Integrated Science Learning on Scientific Literacy and Critical Thinking Skills of Students: A Meta-Analysis
Authors: Nilyani Korry , Asrizal Asrizal , Usmeldi Usmeldi
Published: June 2023

The development of 21st century education requires students to have 21st century skills, one of which is critical thinking skills and scientific literacy as well as technological developments that are developing rapidly so that STEM-based teaching materials are very popular for use. The purpose of this study was to determine the effect of similar research using STEM integrated science learning on students' scientific literacy abilities and critical thinking skills. The method used in this investigation is meta-analysis. The research results obtained are First, the effect of several similar studies on STEM-integrated science learning shows that STEM-integrated science learning has a very high influence on students' scientific literacy abilities and students' critical thinking skills. Second, the effect of several similar studies based on educational level shows that high school level has a higher influence on students' scientific literacy skills and students' critical thinking skills. Third, the influence of several similar studies based on the learning model used shows that the PBL model has a higher influence on students' scientific literacy skills and students' critical thinking abilities. Fourth, the effect of several similar studies based on learning subjects shows that biology subjects have a higher influence than physics and science subjects.
Application of the Numbered Heads Together Cooperative Learning Model for Increasing Students' Science Literacy Knowledge on Metabolism Materials
Authors: Radjak Fransiska , Yusuf Frida Maryati , Abdul Aryati
Published: June 2023

This research was conducted in class XII IPA 1 SMA N 1 Suwawa with the aim of knowing the literacy knowledge of students through the application of the Numbered Head Together cooperative learning model. The model used in this research is the Classroom Action Research Kemmis and Tagart models using 3 cycles, with research stages namely a) Planning, b) Implementation or action, c) Observation, d) Reflection. Based on the analytical instruments and analysis of scientific literacy-based learning outcomes, it can be seen that the NHT type cooperative learning model can increase students' scientific literacy knowledge which includes 3 indicators including scientific question assistance, explaining phenomena scientifically, and using scientific evidence , this is evidenced by improvements in the activities of teachers and students, as well as the improvement of learning outcomes achieved. The application of the NHT learning model can increase students' scientific literacy knowledge, because the application of the NHT learning model can help train and increase students' scientific literacy knowledge, especially in metabolic materials. The characteristics of metabolic substances which generally require more understanding can be complemented by the application of the NHT learning model which precipitates cooperation and sharing between peers which also requires responsibility for oneself due to random calling of noor. The advantages of the NHT learning model are that it can improve student achievement, are able to deepen student understanding, train student responsibility, delight students in learning, develop student curiosity and increase self-confidence also help increase students' scientific literacy knowledge because it involves students with their learning environment, and thinking activities together
Development of Physics LMS Based on Science Literacy Related Energy Content in Agricultural Context (Farmer)
Authors: Herawati  , Setiawan Andhy , Hidayat Arif
Published: June 2023

Farmer is a Physics learning media that functions as Learning Management System (LMS) to organize, manage, and deliver subject matter on the concept of energy and its changes related to work, changes in mechanical, chemical, electrical, heat and renewable energy on the basic techniques of plant production processes which refer to a science literacy-based learning flow with a web format for the vocational school of Agriculture. The purpose of this study was to analyze the concept of Energy and its changes in Agriculture that are used in the LMS Farmer. The Material of Energy and its changes in Agriculture in LMS farmers were developed using the ADDIE model 1) Analysis Phase; 2) Design Phase; 3) Developed Phase; 4) Implementation Phase; 5) Evaluation Phase. This research used the qualitative method. The non-test research instruments included material validations by four material experts consisting of two physics experts, one teacher and one Agricultural material expert. The data analysis techniques included descriptive statistics. The results showed that the material of Energy and its changes in Agriculture on LMS Farmer, based on the assessment by four experts lies in the “feasible” category. The conclusion of this study is that the material of  Energy and its changes LMS Farmer in the feasible category so that they are feasible to be applied in physics learning for vocational schools majoring in Agriculture.
The Effect of E-Scaffolding in Guided Inquiry Learning on Concept Understanding in Reaction Rate Material
Authors: Auliyani Zaza Fikrati , Rery R. Usman , Noer Asmadi M.
Published: June 2023

Understanding the concept of an object is needed by students, because the understanding of a concept applies in general so that students can solve more complex problems. This study aims to determine the effect of E-scaffolding in guided inquiry learning on conceptual understanding of reaction rate in class XI IPA MAN 1 Indragiri Hilir E-scaffolding is cognitive assistance in electronic form that given in the guided inquiry learning stage as a cognitive tool to support students. The quasi-experimental research method is used to see the effect of E-scaffolding in guided inquiry learning on conceptual understanding in the control class and the experimental class. The results of the two-way ANOVA hypothesis test with a significance value (0.000) <0.05 indicate that there is a difference in conceptual understanding between the control class and the experimental class. Thus, E-scaffolding can be used as a cognitive assistance for students who have difficulty doing inquiry and cannot be completed independently while in the zone of proximal development (ZPD).
Morphological and Stomata Characteristics of Trembesi (Samanea saman (Jacq.) Merr.) Leaves as Green Plants in Padang City, Indonesia
Authors: Vauzia Vauzia , Mayandri Fadhila , Azizah Nur , Alti Rizka Putri
Published: June 2023

Greening along roads can be an alternative solution to overcome air pollution in urban areas. Direct contact of plants with pollutant particles in the air will affect the condition of plants, especially on leaves. Knowledge of morphological characteristics and stomata on leaves that have the potential to absorb pollutants is the basis for understanding plant responses to environmental changes. This research is descriptive research conducted in September-December 2021 with leaf samples taken in the area of ​​PT Semen Padang, Padang State University, and Andalas University forests. Data were analyzed by t test level of 5%. The results showed that the morphological characteristics of trembesi leaves in the PT Semen Padang and Padang State University areas had significant differences in the aspects of the number of leaflets, leaf length, leaf width, not significantly different in the length of the mother petiole and the number of leaf branch bones and the characteristics of the stomata did not show any difference which is evident from the aspect of stomata length and stomata density. The morphological characteristics of trembesi leaves in the Padang State University and Andalas University forests showed significant differences in the length of the mother petiole, the number of leaflets, and the number of leaf veins, there was no significant difference in leaf length and leaf width and showed a significant difference in the aspect of stomata length, but did not show a significant difference in terms of stomata density. Morphological characteristics of trembesi leaves in the PT Semen Padang area and Andalas University forest showed significant differences in the length of the mother petiole, number of leaflets, leaf length, leaf width, and number of leaf veins and did not show significant differences in terms of stomata length and stomata density.
Effectiveness of STEM Learning Based on Design Thinking in Improving Critical Thinking Skills in Science Learning: A Meta-Analysis
Authors: Zulyusri Zulyusri , Santosa Tomi Apra , Festiyed Festiyed , Yerimadesi Yerimadesi , Yohandri Yohandri , Razak Abdul , Sofianora Aulia
Published: June 2023

This study aims to determine the effectiveness of Design Thinking-based STEM learning in improving students' critical thinking skills in science learning. This research is a type of meta-analysis research. Data sources in the study came from 100 national and international journals published from 2017-2023. Search for data sources through google scholar, Eric, Wiley, Taylor of Francis, Sciencedirect, and ProQuest. Data collection techniques through direct observation through the journal database. The keywords used in the search are STEM model, Design Thinking, Critical thinking skills and Science learning. Data analysis technique is quantitative descriptive analysis with JSAP application. The effect size of each study on the STEM learning model based on design thinking in science learning is 0.84 with large criteria. The results of the study can be concluded that the STEM learning model based on design thinking is effective for improving critical thinking skills in science learning. STEM learning model based on design thinking is very good to be applied in science learning in Indonesia
Analysis of the Implementation of ESD in Online Science Learning during the Covid-19 Pandemic
Authors: Aina Mia , Kadir Dalimawaty , Sappaile Baso Intang , Aswan Dara Mutiara , Al Mufida Asita
Published: June 2023

Education for Sustainable Development (ESD) is a program designed to achieve sustainable development goals. In the 2013 curriculum, ESD has been used as one of the bases for teaching science to students. However, the existence of the Covid-19 outbreak in Indonesia has had an effect on science learning activities in junior high schools, so that face-to-face learning has been shifted to online learning. This study aims to analyze activities in online learning, the obstacles experienced by teachers and students, and their effectiveness in implementing ESD principles. The method used is descriptive qualitative to describe online learning at one of the Junior High School (SMP) and Islamic Junior High School (MTs) in West Java. The Researchers used data from the analysis of the teacher's lesson plan and semi-structured interviews with 2 teachers and 2 students. Data analysis was performed by reducing data, presenting data, and drawing conclusions. The results show that online learning is less effective in implementing ESD values because the material presented is limited and learning is only one-way (teacher center). Online learning is carried out using WhatsApp, Google Classroom, and e-learning media with obstacles in the form of internet network instability and a lack of student motivation. Therefore, it is hoped that the teacher can use a learning model that is more attractive, student-centered, and can implement the principles of ESD.
Effect of Implementation of Chat Room-Based Blended Learning on Self-Efficacy and Student Learning Outcomes on Human Movement System Material
Authors: Andriani Ria , Muhibbudin  , Khairil  , Safrida  , Pada Andi Ulfa Tenri
Published: June 2023

Self efficacy has an important role in student achievement, high self efficacy will encourage students to excel and low self efficacy makes it difficult for students to achieve achievements in their studies. This study aims to determine the effect of implementing chat room-based blended learning on self-efficacy and student learning outcomes and the relationship between self-efficacy and learning outcomes. This study used a Quasi-Experimental method with a pretest-posttest Non-Equivalent Control Group Design. Sampling used a purposive sampling technique with a total sample of 134 students consisting of the experimental group and the control group. The instrument used to measure self-efficacy uses a questionnaire containing 45 statements, while learning outcomes are measured using 40 multiple choice questions. Data analysis used covariance analysis at a significant level of 0.05, while analysis of the relationship between self-efficacy and learning outcomes used Pearson's Product Moment correlation analysis. The results showed that there was an effect of self-efficacy and student learning outcomes (p <0.05) and there was a significant relationship between self-efficacy and student learning outcomes after implementing chat room-based blended learning. The conclusion of the study is that there is a positive influence on the implementation of chat room-based blended learning on self-efficacy and student learning outcomes in the human movement system material and there is a positive and significant relationship between self-efficacy and student learning outcomes.
Optimization Design Blade Wind Turbine in Enhancing Power Based on Passive Control System
Authors: Wiratama I Kade , Yudhyadi I Gusti Ngurah Ketut , Suartika I Made , Nuarsa I Made
Published: June 2023

Control power on rotor wind turbine can be carried out by changing blade angle of attack through via pitch control and stall regulated method to produce much power and control power as well as protect wind turbine from high wind to operate in rated power. By using search-based design method to optimize design blade and Blade Element Momentum Theory (BEMT) to analyze aerodynamic performance for stall and pitch control power. Recent work demonstrates that some very significant effect can be achieved by using constant speed pitch control. Comparing of among ordinary blade and design blade of constant speed stall regulated and optimized show that enhancing power is nearly similar while design blade using pitch control give significant effect in enhancing aerodynamic performance of design blade. For average power, design blade constant speed pitch control has average power about 47970,77 Watt and constant speed stall regulated is 43855,41 Watt
Improving Student's Science Literacy Capabilities Through Utilizing the Natural Environment
Authors: Fatmawati Fatmawati , Yusrizal Yusrizal , Mustadi Ali , Abidin Yunus
Published: June 2023

In the learning process, the teaching method becomes a determining factor for the achievement of learning objectives. Basically, every student learning must play an active role in identifying problems, digging information thoroughly, and being able to provide information. The purpose of this research is to see whether the method of utilizing the natural environment can improve students' scientific literacy skills. This study uses Classroom Action Research which was carried out in 2 cycles involving 25 fifth grade students of SD PAB 22 Kelambir Lima. Data collection in this study used student activity observation sheets and student science literacy tests. Quantitative data were analyzed using descriptive statistics to see the average results obtained on the student's scientific literacy ability test. The results of this study indicate that there is an increase in students' learning activities classically which obtained the active category from the first cycle which reached 60.25% and the second cycle to 90.5%.
LGPD - análise dos principais impactos nas bases de dados governamentais e do conceito de privacidade na sociedade
Authors:   , Figueiredo Júnior Carlos José de
Published: June 2023

Após 35 anos trabalhando na DATAPREV - uma empresa pública que fornece soluções de Tecnologia da Informação e Comunicação para o aprimoramento e a execução de políticas sociais do Estado brasileiro, resolvi escrever sobre a minha história de desenvolvimento técnico pessoal e o avanço das tecnologias para atender com segurança, o CNIS - Cadastro Nacional Informação Social que conta com mais de 80 bilhões de registros administrativos referentes a renda, vínculos de emprego formal e benefícios previdenciários e assistenciais pagos pelo INSS é um exemplo do tamanho da responsabilidade social da empresa do qual me orgulho de fazer parte dos seus quadros.
O direito digital não consiste numa nova área de trabalho, mas numa ramificação do campo de atuação do direito no que compete o trabalho jurídico. Uma vez que a internet transformou a sociedade contemporânea numa sociedade digital, também transformou suas ações: a resolução prática do modus vivendi, as relações cada vez mais virtuais, a viabilidade das transações sócio comerciais e, ao mesmo tempo, a ocorrência de potenciais crimes advindos dessas benesses.
BREVE HISTORIOGRAFIA DA DISCIPLINA PSICOLOGIA DA EDUCAÇÃO NO PIAUÍ
Authors: Almeida Maycon Campos de , Santos Thayná Costa , Negreiros Fauston , Silva Ellery Henrique Barros da
Published: June 2023

O livro é fruto da pesquisa de Iniciação Científica de Maycon Campos de Almeida, intitulada “Psicologia da Educação na formação de professores: historiografia das primeiras Escolas Normais do Piauí” (Universidade Federal do Delta do Parnaíba, sob orientação de Fauston Negreiros e com apoio do Grupo de Pesquisas em Psicologia Escolar Crítica e Políticas/PECPol – vinculado ao CNPq, e à Universidade de Brasília/UnB. Além disso, a pesquisa de iniciação científica conta com o financiamento da Fundação de Amparo à Pesquisa do Estado do Piauí (FAPEPI).
The Horizontal Sonocapillary Effect in UltrasonicAssisted Soldering
Authors:   American Welding Society, CHEN SHU , XU ZHIWU , LI ZHENGWEI , MA ZHONGWEI , MA LIN , YAN JIUCHUN
Published: June 2023

In this work, the horizontal sonocapillary effect in ultrasonic-assisted soldering was investigated via numerical simulations and experiments. The numerical simulation results indicated that acoustic pressures in the liquid solder exhibited distinct sinusoidal features with negative offsets, forming a negative average acoustic pressure. When the ultrasonic vibrations were transmitted to the lower substrate in the joint clearance, the average acoustic pressures decreased from the acoustic pressure center to the filling front, forming a negative acoustic pressure gradient in the horizontal direction. As a result, the solder was sucked into the joint clearance by a large negative acoustic pressure. This sonocapillary effect was verified with experiments. In the calculation model, a high ultrasonic amplitude, a small joint clearance width, and a high base material stiffness increased the acoustic pressure and its average difference on the horizontal direction in the solder, which further improved the driving force of the sonocapillary effect. However, the wetting angle had a small influence on the sonocapillary effect.