bluuebunny/crossref_metadata_2025 huggingface dataset:
El registro de patentes para la medición de la innovación en las universidades: análisis bibliométrico
Authors: Arriaga Cárdenas Omar Guillermo , Lara Magaña Paola del Carmen , Sánchez Gutiérrez José
Published: December 2022

La importancia del registro de patentes constituye la base para el desarrollo de indicadores de competitividad y producción tecnológica en las organizaciones educativas. Se han dado muchos cambios en la forma en que las universidades responden a las necesidades de la sociedad, donde las actividades científicas y tecnológicas se convierten en un pilar clave en este contexto. Las Instituciones de Educación Superior (IES), desarrollan nuevos métodos para la transferencia de tecnología, los cuales se puedan incluir y estar al alcance en los programas de pregrado, orientación, tutorías y posgrados, así como estar a disposición de la sociedad en general. Estas mismas se han convertido en generadoras de investigación en los procesos de innovación que impactan en todos los sectores y uno de sus principales indicadores para la medición es el registro de patentes. Con base en los resultados, se determina que los principales elementos para las universidades en temas de innovación son las publicaciones y registro de patentes, ya que generan un conocimiento aplicado. Por lo que el propósito de este trabajo es realizar un análisis desde una perspectiva bibliométrica, encontrar los contenidos de los documentos que ayuden a determinar el registro de patentes como una medición en la innovación.
ON THE EXISTENCE OF UNIQUE COMMON FIXED POINT OF TWO MAPPINGS IN A METRIC-LIKE SPACE
Authors: Mitra Mainak , Bhutia Jigmi Dorjee , Tiwary Kalishankar
Published: December 2022

The main objective of this article is to introduce a fixed-point result involving two mappings satisfying contraction in a metric-like space. The article has been designed in the following manner. In the first section the authors have mentioned some definitions and commonly used notations. In the second section, they have mentioned some fixed-point results. In the third section the authors have introduced their main result and in the last section, using these results, the authors have obtained some conditions that assure the existence of a common fixed point of a pair of mappings.
लोकदेवता बाबा रामदेवजी को अर्पित हस्तशिल्पिय घोड़ों का कलात्मक विश्लेषण
Authors: Chouhan Manish , Sharma Renu
Published: December 2022

राजस्थान की धरती लोक कलाओं और लोकदेवताओं की जननी के रूप में सदैव विश्व प्रसिद्ध रही है। पश्चिमी राजस्थान के लोक देवता बाबा रामदेवजी अपने चमत्कार के लिए प्रसिद्ध रहे हैं। भक्त अपने किसी विशेष कार्य की पूर्ति के लिए बाबा रामदेवजी से प्रार्थना करते हैं। मन्नत पूरी होने पर भक्त अपनी श्रद्धा के अनुसार कपड़े से बने घोड़े चढ़ाते हैं। इसी कड़ी में जोधपुर जिले के प्रताप नगर क्षेत्र में बाबा रामदेवजी को कपड़े से लेकर विभिन्न प्रकार के छोटे-बड़े कलात्मक घोड़े चढ़ाने का काम किया जा रहा है. घोड़े बनाने का यह काम जोधपुर ही नहीं जैसलमेर, रामदेवरा और पोकरण में भी किया जा रहा है. घोड़ों को घास की छप्पर, सफेद और रंगीन वस्त्र, माला, कोर, तुरिया, ऊन की झालर आदि से सजाया जाता है जो हस्तकला की कलात्मक कारीगरी के प्रतीक हैं। इन घोड़ों का आकार, कद और शालीनता असली घोड़ों का आभास कराती है। अगस्त महीने के शुक्लपक्ष की दूसरी से दसवीं तक चलने वाले इस मेले में कपड़े से बने कलात्मक घोड़ों का विशेष महत्व है। जहां राजस्थान ही नहीं बल्कि भारत के कई राज्यों जैसे गुजरात, मध्य प्रदेश आदि से लोग इन्हें देखने आते हैं। आस्था और विश्वास के आधार पर यहां घोड़े को चढ़ाने की प्राचीन परंपरा अखंड है, जिसका पालन आज के आधुनिक युग में भी किया जा रहा है। मनौती के रूप में चढ़ाए जा रहे कपड़े के कलात्मक घोड़े लोक कला परंपरा और सांस्कृतिक महत्व के साथ-साथ हस्तशिल्पियों की आजीविका कमाने का एक बड़ा साधन हैं।
SURVEYING THE DIFFICULTIES BY UNIVERSITY STUDENT IN DISTANCE EDUCATION PRACTICES: THE CASE OF YTU, FACULTY OF EDUCATION
Authors: HOTAMAN Davut , ÖZCAN Emrah
Published: December 2022

Education as a system is an important phenomenon for every society. This phenomenon is expected to contribute to social development and thus social, cultural, and scientific enlightenment benefits from this as well. In this context,
education is an indispensable fact for human life and is a very powerful variable that builds concrete bridges between the past and the future in terms of individuals and the society. Using this variable uninterruptedly despite
all kinds of adverse conditions will ensure the continuation of the society. In the current age, distance/online education practices have become an alternative to formal in-person education due to the advancements in information
and communication technologies. Such that, it has replaced face-to-face education practices that could not be implemented due to the Covid-19 (Coronavirus) pandemic that started in March 2020 in Turkey. When the internet network
infrastructure in a country is sufficiently strong, distance education programs can be easily developed and implemented in that country. However, considering the different geographical regions of Turkey, and different socio-economic
and educational background of families, it would be optimistic to think that all families and student groups have the necessary technological tools and equipment required for distance education and the opportunity to access this
type of education without any issues. The aim of this study is to examine the difficulties that Yildiz Technical University, Faculty of Education students have experienced in distance education during the Covid-19 pandemic. This
study is based on a survey type research model. For data collection tools, an eight (8) item “Personal Information Form” and a twenty-six (26) item “survey” was prepared by the researchers in line with the feedback and opinions
gathered from students and experts. Questions used in the survey address the possible difficulties students may encounter in four sub-categories: "communication technologies, region of residence, social-health-psychological topics
and academic subjects". Six hundred and fourteen (614) students participated in this survey and at the end of the study, descriptive statistics (% and f) describing the participating students were used to analyse the data. Among
these demographic characteristics (gender, class level, place of residence, device connected to distance education and the number of siblings receiving distance education at the same time) for which descriptive statistics were
given, the differences between the difficulties faced by the students in the distance education process were examined with the chi-square (x2) test, and as a result, many strong relationships were detected.
DEVELOPING SPEAKING AND CREATIVE WRITING SKILLS THROUGH WEB 2.0 SUPPORTED CLIL AND WEB 2.0
Authors: Işıl GILIÇ İ. , YELKEN Tuğba YANPAR
Published: December 2022

The aim of this study is to examine the effects of web 2.0 supported content language integrated learning activities and Web2.0 on students' speaking and creative writing skills in English as a foreign language course. The study group
of the research consists of middle school 6th grade students. There are 60 students, 2 in the experimental group and 1 in the control group, in the study. The intervention design, one of the mixed research designs, was used in
the research.The implementation phase of the study lasted for 8 weeks. During this period, web 2.0 supported CLIL activities were applied to the experimental group 1 and web 2.0 supported learning activities to the experimental
group 2."A1-A2 Oral Expression Scale" developed according to CEFR A1 and A2 skills by Temizsiz and Özkaya (2012), "Creative Writing Items Evaluation Scale" developed by Susar Kırmızı and Beydemir (2008) and interview questions
were used as data collection tools. In the research, “A1-A2 Oral Expression Scale” and “Creative Writing Products Evaluation Scale” were applied as pre-test and post-test. While one-way analysis of variance was performed in the
analysis of quantitative data, qualitative data were evaluated by content analysis and divided into themes, and these were also classified with codes within themselves. Before the implementation, it was seen that the speaking and
writing skill levels of all groups were similar.As a result of the research, web 2.0 supported content integrated learning activities improved students' speaking and writing skills positively; On the other hand, it was seen that
web 2.0 supported activities improved students' speaking skills in a positive way, but were not effective in writing skills. Further research can be performed in other grades or classes following the results of the research.
KSPPS Financing, Product Innovation, and Technology as Determinants of MSME Growth in Pekalongan City
Authors: Arisnawati Nur Fani
Published: December 2022

Purpose: This study aims to determine the effect of KSSPS Financing, Product and Technology Innovation as Determinants of Growth of MSMEs in Pekalongan City. This study uses descriptive analysis, with a quantitative approach.Design/Method/Approach : The data collection method used in this study was a closed questionnaire. The data was processed by multiple regression analysis with SPSS tools. Prior to data analysis, the instrument was tested with validity and reliability tests. The analysis prerequisite test was also carried out to fulfill the requirements for the regression model data analysis with normality test, linearity test, multicollinearity test and heteroscedasticity test.Findings: The results of this study indicate that there are only 2 independent variables that have a positive and partially significant effect on the dependent variable, namely the product innovation variable with a value of tcount 3.783 > ttable 1.665 with a significance value of 0.000 <0.05 and technology variable with tcount 4.734 > ttable 1.665. with a significance value of 0.000 <0.05. While the KSPPS financing variable partially has no effect on the growth of MSMEs because tcount -0.000 < ttable 1.665 with a significance value of 0.996 > 0.05. However, simultaneously all independent variables affect the dependent variable with a value of fcount 19.001 > ftable 2.72 and a significance value of 0.000 <0.05.Originality/Values: The main contribution of this research concern on find out the benefits of KSPPS Financing to effectively improve the welfare of MSME’s in Pekalongan City.
Library Impact Research Report: A Toolkit for Demonstrating and Measuring Impact of Primary Sources in Teaching and Learning
Authors: Withers Clare , Dill Diana , Haas Jeanann , Haines Kathy , Webster Berenika
Published: December 2022

As part of ARL’s Research Library Impact Framework initiative, a team from the University of Pittsburgh Library System addressed how special collections support teaching, learning, and research. This project developed a toolkit that allows measurement of impact of engagement with primary sources. The University of Pittsburgh (Pitt) initially worked with University of California, Irvine (UCI) to develop student learning outcomes based on the ACRL/RBMS–SAA Guidelines for Primary Source Literacy and used a logic model framework to identify three types of outcomes: initial (attainment of new skills and knowledge), intermediate (behavioral change), and long-term (change in status). Pitt studied two successive cohorts of their Archival Scholars Research Awards (ASRA), a semester-long undergraduate scholarship program that matches each student with a University of Pittsburgh Library System (ULS) librarian/archivist and a Pitt faculty mentor to engage in an in-depth research project. Next, Pitt refined, expanded, and tested the toolkit for use in class visits to assess student learning and archivist/librarian performance in supporting instructor learning goals. The mapping and assessment toolkit Pitt developed may be applied to teaching with primary sources across different disciplines and institutional settings.
JOGOS DE LINGUAGEM EXPRESSOS POR ALUNOS RIBEIRINHOS NA PESCA ARTESANAL DO RIO XINGU
Authors: FORMIGOSA Marcos Marques , GIONGO Ieda Maria
Published: December 2022

O artigo tem como objetivo analisar os jogos de linguagem atinentes à atividade da pesca artesanal expressos por alunos do 4º ano do Ensino Fundamental de uma escola ribeirinha na Amazônia Paraense. A metodologia tem inspirações etnográficas, incluiu vivências na comunidade e uma cartografia social produzida pelos discentes. A análise dos dados evidenciou que os alunos expressam jogos de linguagem desenvolvidos na atividade da pesca, transmitindo-os a gerações e, assim, garantir a permanência dos moradores no local como forma de ocupação do espaço, mesmo que, por vezes, isso não seja reconhecido pelo Estado, que, historicamente, tem lhes negado direitos fundamentais, como a educação.
Comparative analysis between screening mammography performed in patients at usual
risk and at high risk for breast cancer
Authors: Pannain Gabriel Duque , Antonini Marcelo , Ferraro Odair , Real Juliana Monte , Lopes Reginaldo Guedes Coelho
Published: December 2022

Introduction: Breast cancer is currently considered as a public health issue. To avoid late diagnosis, there is an attempt to use appropriate screening programs addressed to the early detection by testing the asymptomatic population in order to identify preclinical stage lesions. Methods: This is a retrospective, analytical, cross-sectional study of the notifications available in the cancer information system. The incidence of notifications from the reports of the BI-RADS™ notification system (Breast Imaging Reporting Data System) was compared between women at high and usual risk for breast cancer. Results: In the analyzed period, from 2013 to 2021, 16,065,383 screening mammographies were performed and notified in Brazil. Of these, 13,167,259 were performed in usual-risk women, whereas 2,898,124 were performed in high-risk women. To analyze the difference between reports of women at usual and high risk, the relative risk between them was calculated, as well as the necessary number to causa damage; the relative risk we found was of 0.5412 (95%CI 0.5341–0.5483) in B4 and relative risk of 0,433 (95%CI 0.4203–0.4462). As to the necessary number to cause damage, we observed 203 (95%CI 198–209) for B4 and 788 (95%CI 754–825) for B5. Despite the well-established need for breast cancer screening programs to reduce mortality, some aspects of screening do not have such a consensus. In this study, the incidence of reports that are suggestive of malignant breast lesions was higher among women at high risk. Conclusions: The study showed an increased prevalence of reports suggestive of malignancy in high-risk patients when compared to those at usual risk.
The role of denial on emotional correlates of childhood trauma in a non-clinical population
Authors: Sanja Krvavac , Billy Jansson
Published: December 2022

Background: A large body of evidence suggests that child abuse and neglect by a caregiver is a recurrent event linked to increased psychopathology symptoms. The Childhood Trauma Questionnaire (CTQ) is commonly used to assess abuse/neglect during childhood. However, even though the Minimization-Denial (MD) subscale was originally designed to assess response bias (i.e., underreporting of childhood maltreatment), it is possible that the scale may reflect coping strategies that play an effective role in the relationship between childhood trauma and their negative outcomes. Also, even though MD has been associated with decreased psychopathology symptoms, it is also strongly associated with other scales of the CTQ. Method: This study (n = 133) examined whether (1) the MD-scale is negatively associated with alexithymia, emotion dysregulation and psychopathology, if (2) these associations will hold when adjusting for different subtypes of abuse and neglect and (3) and the role of MD as a possible moderator in these relationships. Results: The analyses showed that, although MD scores have relatively strong and (mostly) significant (negative) associations with the CTQ, emotion dysregulation strategies and psychopathology symptoms, these associations were weak and failed to remain significant when adjusting for the effect of CTQ. Conclusion: Our findings suggest that the MD scores should be viewed as an accurate reflection of the absence (or little) of exposure to childhood abuse/neglect.
Enhancing creativity in genetics using three teaching strategies-based TPACK model
Authors: Angraini Erni , Zubaidah Siti , Susanto Hendra , Omar Noritah
Published: December 2022

Several studies show that the creativity of science students in Indonesia is still low and needs to be empowered and improved. One of the subjects considered difficult by students is genetics because it is abstract and complex. Therefore, educators try technological, pedagogical, and content knowledge (TPACK) model with different strategies. This study aims to analyze and describe the effect of active learning based on the TPACK model with three teaching strategies, namely problem-based learning (PBL), reading, questioning, and answering (RQA), and PBL-RQA, on student creativity in the genetics course at three classes. The research design used was a pre-test-post-test three treatment design. Several teaching strategies used in active learning based on the TPACK model in the genetics course are PBL, RQA, and a combination of PBL-RQA. The research was conducted for one semester. Data was collected through pre- and post-test in the form of description questions distributed through Google Forms. The results showed that the three active learning classes based on the TPACK model have the potential to increase student creativity. The three classes did not differ significantly in increasing student creativity. The three classes have their respective advantages, so educators can choose between the three strategies used by considering the characteristics of students. The three TPACK-based active learning can be used as recommendations in designing the learning process. Educators can also choose the three TPACK-based active learning to empower and increase student creativity.
Aplikasi Cendawan Entomopatogen Beauveria Bassiana (Bals.) pada Tanaman Padi dan Pengaruhnya Terhadap Preferensi Oviposisi Imago Wereng Batang Coklat (Nilaparvata Lugens Stal)
Authors: Hendra Yolma , Trizelia Trizelia , Syahrawati My
Published: December 2022

Wereng batang coklat (Nilaparvata lugens Stal.) merupakan hama utama yang menyebabkan rendahnya produksi tanaman padi. Pengendalian hama ini dapat dilakukan dengan pemanfaatan agens hayati. Salah satunya cendawan Beauveria bassiana (Bals.) Vuill. Tujuan penelitian adalah untuk mengetahui pengaruh cendawan B bassiana yang diinokulasikan melalui  benih padi selama 24 jam terhadap preferensi oviposisi imago Wereng Batang Coklat (WBC). Penelitian disusun dalam Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 5 ulangan. Perlakuan terdiri dari empat isolat B.bassiana yaitu: BbJg, BbWS, Pb211, Td312 dan kontrol. Konsentrasi B. bassiana yang digunakan adalah 108  konidia/ml. Data yang didapat diolah dengan menggunakan sidik ragam atau analisis of variance (ANOVA), dan dilanjutkan dengan uji LSD taraf nyata 5%. Hasil penelitian menunjukkan bahwa semua isolat cendawan  B. bassiana mampu mengkolonisasi semua bagian tanaman padi dan tingkat kolonisasi tertinggi terdapat pada daun. Kemampuan kolonisasi dipengaruhi oleh jenis isolat.  Keberadaan cendawan B. bassiana  di dalam jaringan tanaman padi memberikan  pengaruh negatif terhadap preferensi oviposisi imago betina WBC.  Jumlah telur yang diletakkan imago lebih sedikit pada tanaman padi yang diaplikasi B. bassianadan  persentase  telur yang menetas juga lebih rendah dibandingkan dengan control.  Cendawan B. bassiana  dengan kode BbWS adalah yang terbaik dalam menghambat peletakan telur dan menekan persentase telur menetas WBC.
Formação do gestor escolar em Pernambuco
Authors: Rodrigues Luiz Alberto Ribeiro
Published: December 2022

O objetivo deste artigo é analisar as concepções de gestão escolar presentes nos processos de formação de diretores, com recorte para o Programa de Formação de Gestores de Pernambuco - PROGEPE, desenvolvido no período de 2012 a 2019. Utilizou-se como metodologia a teoria de análise de política fundamentada em Muller & Surel e a análise de discurso de Norman Fairclogh, no sentido de identificar e analisar elementos da política de gestão da educação e como essa influenciou a constituição do processo de formação dos gestores na Rede Estadual. Retoma-se os embates em torno do conceito de gestão escolar democrática e as recentes correntes do gerencialismo de resultado na educação. Em Pernambuco, neste período, foi observado um processo político de disputa em torno da gestão democrática e, apoiado pelo PROGEPE um avanço significativo de ideias gerenciais para a gestão educacional.
gestão do Programa Escolas Interculturais de Fronteira (PEIF) na fronteira do Brasil com o Paraguai
Authors: Bueno Mara Lucinéia Marques Correa
Published: December 2022

A presente pesquisa objetiva analisar a gestão do Programa Escolas Interculturais de Fronteira, como uma política educacional de formação de professores, específica para região de fronteira. Em aspectos metodológicos, buscou-se na avaliação de uma política educacional e seus possíveis impactos (BAKER, 2000) e na pesquisa documental (CELLARD, 2008) responder ao pro- blema: A gestão do PEIF, como uma política de formação de professores, atingiu seu objetivo na educação em região de fronteira? Para tanto, organizou-se o artigo em três seções, onde a primeira identifica o lócus de pesquisa, ou seja, a fronteira seca do Brasil com o Paraguai. Já a segunda se- ção evidencia como surgiu o Programa Escolas Interculturais de Fronteira (PEIF) e seus principais desafios. A terceira seção expõe a organização da parceria estabelecida entre Ministério da Edu- cação (MEC), Universidades e escolas de fronteira que aderissem ao Programa. As considerações finais evidenciam que há desafios na política voltada para a educação de fronteira, contudo trouxe um ressignificado para as especificidades regionais.
Resenha
Authors: Silva Camila Ferreira da
Published: December 2022

Resenha-se neste texto o livro Ensino médio em reformas: trabalho, políticas, cotidiano, de Jean Mac Cole Tavares Santos, Elione Maria Nogueira Diógenes e Rosemeire Reis (2012). A leitura crítica desta obra resultou em um esforço de síntese que tem sua materialização neste texto. As preocupações, os objetos e as perspectivas dos autores se encontram em constante diálogo ao longo do livro e é exatamente este diálogo o responsável pelo enfrentamento de questões caras às históricas problemáticas em torno do ensino médio brasileiro em suas interfaces com as políticas públicas.
A-infinitiivin translatiivi Mikael Agricolan teksteissä
Authors: Uusitalo Harri , Salmi Heidi , Elsayed Duha
Published: December 2022

Nykykielessä A-infinitiivin translatiivin perusfunktio on tarkoituksen ilmaiseminen finaalirakenteen osana. Sen avulla liitetään kaksi prosessia tai tapahtumaa keskenään kausaaliseen suhteeseen. Rakenne on puhekielessä harvinainen, mutta silti ilmeisen vanha, sillä se esiintyy produktiivisena jo Mikael Agricolan teksteissä. Muodon käyttö ei kuitenkaan ole kaikilta osin samanlaista kuin nykykielessä. Keskeisiä eroja ovat hallitsevan lauseen subjektin ja rakenteen possessiivisubjektin viittaaminen eri persoonaan sekä hallitsevan lauseen ja rakenteen jaettu objekti, jotka molemmat olivat Agricolan teksteissä tavallisia.

Tässä tutkimuksessa finaalirakennetta tarkasteltiin suhteessa hallitsevan lauseen finiittiverbiin. Esiin nousi finaalisen lisäksi permissiivistä, referatiivista ja modaalis-aspektuaalista käyttöä sekä yksittäisiä verbejä, joiden merkityksen abstraktistumista voidaan havainnoida Agricolan aineistosta. A-infinitiivin translatiivi ei näissä tapauksissa juuri koskaan ole kyseisen hallitsevan lauseen verbin ainoa rektio, ja useimmiten vaihtoehdona on ainakin A-infinitiivin perusmuoto. Kyse on vanhalle kirjasuomelle tyypillisestä morfosyntaksin vakiintumattomuudesta, jota esimerkiksi käännösten lähtökielten malli ei täysin selitä, vaikka joitakin A-infinitiivin perusmuodon translatiivivarianttia pidemmälle edenneeseen kieliopillistumiseen viittaavia tendenssejä onkin havaittavissa.
Morfosyntaktiset, fraseologiset ja verbivalintaan liittyvät virheet tšekinkielisten ja venäjänkielisten suomenoppijoiden teksteissä ICLFI-aineiston perusteella
Authors: Dani Valentina
Published: December 2022

Artikkeli koskee tšekinkielisten ja venäjänkielisten B1-tason suomenoppijoiden morfosyntaktiset, fraseologiset ja verbivalintaan liittyvät virheet Kansainvälisen oppijansuomen korpuksen aineiston perusteella. Artikkeli kuvaa virheannotointijärjestelmää sekä virhetendenssit tšekinkielisten ja venäjänkielisten suomenoppijoiden teksteissä. Artikkelissa analysoin frekventtisimmät morfosyntaktiset, fraseologiset ja verbivalintaan liittyvät virheet sekä erot tšekinkielisten ja venäjänkielisten suomenoppijoiden aineistojen välillä. Tutkimus on korpuspohjainen ja kvantitatiivinen.
Miksi kato leviää?
Authors: Knuutila Sini , Kuparinen Olli , Santaharju Jenni , Mustanoja Liisa , Leino Unni , Peltonen Jaakko
Published: December 2022

Artikkeli tarkastelee syitä katomuotojen esiintymiselle yleiskielen hd-yhtymän asemassa (kaheksan) Helsingin puhekielen pitkittäiskorpuksessa. Mahdollisina syinä tarkastellaan esimerkiksi sanan frekvenssiä sekä muotoseikkoja, kuten hd-yhtymän sijoittumista vokaali- tai konsonanttivartaloon, ja merkitysseikkoja, kuten erisnimiä verrattuna muihin sanoihin. Menetelmällisesti tutkimuksessa hyödynnetään logistisen regression mallia sekä päätöspuuta.
Artikkeli osoittaa, että voimakkaimmin kadon todennäköisyyteen Helsingin puhekielessä vaikuttaa sanan frekvenssi. Muotoseikoista kadon todennäköisyyteen vaikuttavat negatiivisesti hd-yhtymän esiintyminen konsonanttivartalossa, pitkän vokaalin, diftongin tai painottoman tavun jäljessä. Sanan kuuluminen erisnimiin on puolestaan merkitysseikoista keskeinen este kadon esiintymiselle. Frekvenssin vaikutus on kuitenkin kaikkein suurin: mikäli sana ei muoto- tai merkityssyistä olisi erityisen hyvin soveltuva katomuodoille, voi korkea frekvenssi silti kasvattaa kadon todennäköisyyttä. Vastaavasti sanoissa, joissa on hyvät edellytykset kadolle, voi matala frekvenssi pitää kadon laajuuden alhaisena.
Project of using low-potential energy sources at the Bratsk hydro power plant
Authors: Yurovskaya V. D. , Latushkina S. V.
Published: December 2022

THE PURPOSE. Improving the energy efficiency of a hydroelectric power plant (HPP). Determination of the volume of lost thermal energy from HPP equipment. Development of options for the beneficial use of low-grade heat. Economic evaluation of the proposed options. Selection of the most appropriate waste heat utilization option. METHODS. The methods of the theory of heat and mass transfer, thermodynamic analysis, technical and economic calculations in the energy sector are used in the work. RESULTS. The article determined the temperatures of heat carriers in the cooling system of the hydroelectric generator of the Bratsk HPP. Calculated heat losses in the amount of 92,52 MW. 3 variants of heat supply for the facilities of the Bratsk HPP have been laid. An optimized scheme of heat generation using a heat pump installation (HPI) has been developed. A feasibility study of the proposed options for heat supply has been carried out. An analysis of the Russian HPI market was carried out. A cost-effective heat supply option with 2 Viesmann Vitocal 350-G Pro HPI was selected for implementation with a capital investment 34,46 million of RUB and a payback period of 7,3 years. CONCLUSION. The results of technical and economic calculations show the feasibility of introducing a HPI into the heat generation system of the Bratsk HPP.
Development of laboratory unit of compressed air energy storage
Authors: Fedyukhin A. V. , Dronov S. A. , Semin D. V. , Gusenko A. G. , Panarin V. E.
Published: December 2022

PURPOSE. Development of a laboratory unit for a compressed air energy storage and calculation of its operating modes using Aspen HYSYS and ANSYS software packages.METHODS. The authors have developed an experimental unit of a compressed air energy storage and calculation with a capacity of 1 kW. The principle of operation of the unit consists in pumping compressed air into the receiver by a compressor, followed by the release of air from the receiver into the expander of the original design, which generates electrical energy. RESULTS. During the development of the prototype, 4 gears were made of various structural materials: AISI 304 stainless steel, LS59-1 brass and POM-S polyacetal. During assembly, lapping and running-in, it was found experimentally that the optimal solution in terms of antifriction characteristics, strength and longer service life is the use of gears made of polyacetal. To simulate the operating modes of the laboratory stand, a model was compiled in the Aspen HYSYS software package. The need for a dynamic model arose to simulate the process of unloading the receiver. A graph of the change in air flow at the inlet to the expander depending on the position of the control valve is presented.CONCLUSION. The advantages of using CAES as a method of accumulating electrical energy include high maneuverability and operation in wide ranges of temperature and pressure, which makes such power plants cheaper and more durable. The CAES accumulates energy in the form of compressed air, which then goes to generate electricity during peak loads.
Analysis of deposits in superheater tubes at coal-fired thermal power plants by Fourier IR spectroscopy
Authors: Chichirova N. D. , Chichirov A. A. , Vlasova A. Y. , Orlov A. A.
Published: December 2022

THE PURPOSE. Determination of the qualitative composition of deposits on the inner surface of the superheater tubes of the Aksuskaya GRES and CHPP stations of Aluminum Kazakhstan JSC located in the Republic of Kazakhstan. METHODS. The most modern method of analysis is IR spectrophotometry, which is based on the absorption of IR radiation. Sediment analysis was carried out on an infrared spectrophotometer with Fourier transform of Shimadzu IRAffinity-1S. The peculiarity and justification of using this device is based on the high throughput of optics. A complementary function is a combination with a dynamic digital adjustment system. The DLATGS detector is used as a powerful ceramic radiation source. This detector is highly sensitive and thermally stabilized. RESULTS. As a result of the analysis, it was found that the deposits on the inner surface are represented by metal corrosion products and heat-resistant humus substances. The latter easily pass into steam from boiler water (steam distillation) and settle on the surface of the tubes. Also, mineral substances and silicates are present as impurities, which also pass into steam in a small amount. CONCLUSION. As a result of the analysis of deposits in superheater tubes at the stations of Aksuskaya GRES and CHPP of Aluminum Kazakhstan JSC located in the Republic of Kazakhstan, it was found that corrosion processes are quite intense, therefore corrosion products predominate in the deposits. To reduce the internal wear of the tubes, it is necessary to adjust the VCR, analyze the reagents used, and perform a step-by-step analysis of the coolant at each stage of cleaning.
Biodiesel fuel. part ii. thermophysical properties of systems participated in the process of obtaining biodiesel fuel using working media in the supercritical fluid state
Authors: Mazanov S. V. , Zaripov Z. I. , Gumerov F. M. , Usmanov R. A. , Shapovalov Yu. A.
Published: December 2022

THE PURPOSE. The purpose of the work was to systematize the results of the work of domestic and foreign authors on the thermophysical properties of media and substances involved in the process of obtaining biodiesel fuel. METHODS. To measure the isobaric heat capacity, the predominant use is given to the methods of heat-conducting and scanning calorimeters, the measurement of the thermal conductivity by the heated filament method. Kinematic and dynamic viscosities are measured, respectively, on standard glass viscometers at atmospheric pressure and by the drop weight method. RESULTS. The results of a study of a wide range of thermophysical properties of thermodynamic systems involved in the process of obtaining biodiesel fuel under supercritical fluid conditions are presented. Attention is paid to the density, isobaric heat capacity, thermal conductivity, dynamic and kinematic viscosity of both the feedstock and the resulting biodiesel fuel, presented in a wide range of temperature and pressure changes, including nearcritical, as well as taking into account the thermal effects caused by the dissolution and change in the structures of substances under the influence of fluid reagent. CONCLUSION. The presented data will be necessary at the stages of designing and scaling a particular technology for the production of biodiesel fuel, both on a laboratory scale and at an industrial level.
Comparative characteristics of Crystals-Kyber and Skelya key encapsulation algorithms (DSTU 8961-2019)
Authors: Gorbenko I.D. , Kachko Ye.G. , Yesina M.V. , Ponomar V.A.
Published: December 2022

In recent years, there has been a significant amount of research related to the development of quantum computers. If such a computer were to be built, it would be able to break existing public-key cryptosystems that are currently used for many purposes. This will seriously affect the privacy and integrity of digital communications, etc. That is why special attention is currently being paid to post-quantum cryptography, the main goal of which is the development of cryptographic systems that are protected from both quantum and classical attacks, and will also be able to interact with existing communication protocols and networks. In view of the significant importance of the practical application of directional encryption algorithms, at the international and state level, special attention was paid to the implementation of the proposed requirements for key encapsulation protocols. Key-establishment algorithms (KEA) form a common secret – the key for a symmetric encryption algorithm. The paper considers two KEA algorithms that use algebraic lattices: one of the finalists of the 3rd round Crystals-Kyber and the Skelya algorithm (DSTU 8961-2019). The Kyber algorithm first performs asymmetric encryption of a 32-byte message, and then generates a shared secret. The Skelya algorithm performs the same actions, but for asymmetric encryption, it uses messages of any length that do not exceed the maximum possible. That is why the last algorithm can be used not only as a KEA algorithm, but also as an asymmetric encryption algorithm. According to the NIST Security level, the Kyber algorithm provides cryptographic 1, 3, and 5 security levels, and the Rock algorithm provides cryptographic 3, 5, and 7 security levels. The cryptographic stability that is ensured for both algorithms is determined by a set of parameters. Thus, the purpose of this work is to review the details of the implementation of each of the mentioned algorithms, to compare the speed of the key generation, encapsulation and decapsulation algorithms for the Kyber and Skelya algorithms in terms of key data lengths, and the encapsulation result and computational complexity of both algorithms.
Analysis of acoustic direction finding methods for unmanned aerial vehicles
Authors: Kartashov V.М. , Rybnykov M.V. , Kartashov A.V. , Pososhenko V.А.
Published: December 2022

Currently, classical means of detecting objects do not provide the necessary efficiency for detecting small UAVs, and acoustic location among the known methods for their observation is the most cost-effective solution.

The article analyzes the well-known methods of direction finding of acoustic signals in order to select algorithms for processing UAV signals. Obtaining qualitative indicators of the analyzed algorithms was carried out by the method of statistical computer modeling in the Matlab environment.

Based on the simulation results, it is shown that classical methods are the most stable under conditions of low signal-to-noise ratios. The GCC-PHAT direction finding algorithm, based on determining the difference in the time of arrival of a signal at spaced points, is computationally economical and simple enough to determine the direction to the UAV, but it is not capable of distinguishing more than one radiation source within the diagram orientation. Beamforming methods are also relatively easy to implement and computationally efficient, and are more robust at low signal-to-noise ratios. The SRP-NAM algorithm has a greater accuracy in determining angles than SRP-PHAT, so it can be an adequate replacement for the SRP-PHAT algorithm.

High-resolution methods provide better directional resolution than classical methods, which, in the case of a limited microphone array aperture, is a positive factor in the design of an UAV direction finding station. High resolution methods were considered: non-coherent MUSIC, non-coherent normalized MUSIC and TOPS method. It is shown that incoherent MUSIC gives poor results in distinguishing close UAV signals, since unequal estimates of the entire frequency range are concentrated during bearing formation. The incoherent normalized MUSIC algorithm is able to efficiently use the entire frequency range of the UAV acoustic signal. The TOPS algorithm is inferior to the incoherent normalized MUSIC algorithm, and on the other hand, it does not require a priori estimates of the number of radiation sources.
The use of various materials as a metal component in a metamaterial thermophotovoltaic emitter
Authors: Yasnohorodskyi M.A.
Published: December 2022

Thermophotovoltaics (TPV) is a process by which photons emitted by a heat emitter are converted into electrical energy by a photovoltaic cell. Selective heat emitters that can survive temperatures at or above 1000°C have the potential to significantly improve the energy conversion efficiency of a PV cell by limiting the emission of photons with energies below the band gap energy of a photovoltaic cell.

Waste heat can be a valuable source of energy if we can find a way to harvest it efficiently. Deviations from ideal absorption and ideal blackbody behavior lead to light losses. For selective emitters, any light emitted at wavelengths outside the bandgap energy of the photovoltaic system may not be efficiently converted, reducing efficiency. In particular, it is difficult to avoid emission associated with phonon resonance for wavelengths in the deep infrared, which cannot be practically converted. An ideal emitter would not emit light at wavelengths other than the bandgap energy, and much TFP research is devoted to designing emitters that approximate better this narrow emission spectrum.

TPV systems usually consist of a heat source, a radiator and a waste heat removal system. TFV cells are placed between the emitter, often a metal or similar block, and the cooling system, often a passive radiator.

Efficiency, heat resistance and cost are the three main factors for choosing a TPF emitter. The efficiency is determined by the absorbed energy relative to the incoming radiation. High temperature operation is critical because efficiency increases with operating temperature. As the temperature of the emitter increases, the radiation of the black body shifts toward shorter waves, which allows for more efficient absorption by photocells. This paper demonstrates the feasibility of using materials such as platinum, gold, and nichrome as a metal component in a metamaterial emitter with respect to their absorption and thermal stability.
Optical Network Management by ONOS-Based SDN Controller
Authors: Romanov O.I. , Svyd I.V. , Korniienko N.I. , Romanov A.O.
Published: December 2022

The possibilities to manage the optical network with a logically centralized SDN control plane based on the Open Network Operating System (ONOS) are investigated. The structure of the controller and its main functional blocks are considered ensuring the collection of information about the state of network elements, the solution of the main control tasks, interaction of control systems built on different technological bases, are considered. The role and place of the open network operating system in the controller structure are shown, the description of the ONOS multilevel architecture in the form of a set of functional modules is given, the purpose and functions of the ONOS subsystems are analyzed, protocols and interfaces making it possible to present the SDN network as a model are described. The peculiarity of the model is that the managed network can be represented as a set of virtual network functions. Therefore, the control process becomes independent of which vendor's equipment was used to build the network, as well as whether the network is built on real physical elements or virtual ones. Using the ONOS allows you to build a logical centralized control plane in the SDN networks. The existing set of functional modules, services and interfaces in the ONOS allows you to perform optical network management tasks. For the further development of the ONOS, it is necessary to develop mathematical models and methods for the optimal solution of control problems in various operating conditions, which will become application-level software modules in the future.
Mothers and Melancholia: Sacrifice in Søren Kierkegaard’s Fear and Trembling
Authors: Varslev-Pedersen Cæcilie
Published: December 2022

The article examines sacrifice in Søren Kierkegaard’s Fear and Trembling. I argue that in order to understand the meaning of sacrifice in this work, we have to account for the four poetic images of a weaning mother – often overlooked by commentators – that we find in the section entitled “Attunement”. I show that we can make sense of the images once we situate them within the context of Kierkegaard’s (or his pseudonyms’) broader critique of modernity, autonomous subjectivity, and the loss of premodern forms of authority. On my interpretation, for Kierkegaard, sacrifice entails a rupture of a communal bond; yet his pseudonyms explore both secular and religious ways of responding to such a rupture. Finally I argue that while Fear and Trembling ultimately offers no clear solutions, the story Kierkegaard conveys to us – a story about sacrifice, mourning, and mothering – can inspire us to reflect on the modern condition.
Profiting from Crisis? Catholic Traditionalism during the COVID-19 Pandemic
Authors: Schmidinger Thomas
Published: December 2022

During the COVID-19 pandemic, traditionalist Catholic communities have been able to draw worshippers from mainstream parishes that restricted services, thereby profiting from the crisis. In addition, they have used pandemic conditions to advance an ultra-conservative strain of Christian theology that foregrounds the role of believers in the Ecclesia militans or “militant Church” by rejecting (in part) state-imposed measures against the pandemic and propagating a critique of vaccination in line with decades of mobilization against abortion and secularism.

The paper focuses on the largest of these communities, the Priestly Fraternity of St. Pius X and the Priestly Fraternity of St. Peter. Focusing mainly on Austria, it details how these communities have sought to leverage the crisis to court worshipers from mainstream parishes and advance their long-term strategic ambitions to destabilize the post-Second Vatican Council status quo within the Roman Catholic Church.
Competitividad agronómica de ecotipos nativos de jitomate ( Solanum lycopersicum L.) cultivados en invernadero
Authors: Leana-Acevedo José Luis , Juárez-López Porfirio , Palemón-Alberto Francisco , Sainz-Aispuro Manuel de Jesús , Alia-Tejacal Irán , Avonce-Vergara Nelson , Damián-Nava Agustín , Ortega-Acosta Santo Ángel
Published: December 2022

México cuenta con una amplia diversidad de ecotipos nativos de jitomate (Solanum lycopersicum L.), por lo cual es pertinente realizar investigaciones para conservar y aprovechar este recurso fitogenético. El objetivo del presente estudio fue evaluar la competitividad agronómica de 19 ecotipos nativos de jitomate provenientes de Guerrero, Oaxaca, Puebla y Yucatán, cultivados en invernadero, y compararlos con el híbrido comercial de jitomate saladette SUN 7705. Se identificaron 14 ecotipos con potencial productivo expresado en el rendimiento de fruto y competitividad agronómica que podrían usarse para producción directa en invernadero o como fuente de germoplasma para el mejoramiento genético de esta especie. Por el tamaño y forma de sus frutos, los ecotipos 14-5 y 4-7 de frutos amarillos y el ecotipo 17-13 de frutos color rojo, tienen potencial para cultivarse como jitomates tipo cherry.
Concentrated Growth Factor Promotes Wound Healing Potential of HaCaT Cells by Activating the RAS Signaling Pathway
Authors: Liu Yueming , Liu Yang , Zeng Changchun , Li Weishan , Ke Changneng , Xu Shi
Published: December 2022

Objective: The aim of this study was to explore the effect of concentrated growth factor (CGF) on the wound healing potential of human epidermal cells (HaCaT) in vitro and in vivo. Methods: CGF was extracted from venous blood using the centrifugal separation method. The CGF-conditioned medium was prepared from CGF gel immersed in Dulbecco’s Modified Eagle medium. Crystal violet staining and wound healing assay were used to evaluate the proliferation and migration of HaCaT cells, respectively. Lipopolysaccharide (LPS) was used to test the anti-inflammatory function of CGF. An ELISA kit was employed to detect the concentration of growth factors and interleukins in CGF medium. mRNA and protein levels of angiogenic biomarkers (Angiopoietin-1 (ANGPT-1), vascular endothelial growth factor-A (VEGF-A) and Angiopoietin-2 (ANGPT-2) ) were determined by quantitative polymerase chain reaction (qPCR) and Western blot, respectively. A dorsal excisional wound model was recruited to test the wound healing effect of CGF in mice. Results: Three-day treatment of HaCaT cells with CGF significantly promoted cell proliferation, which was followed by an increase in Vascular Endothelial Growth Factor (VEGF) and Fibroblast Growth Factor (FGF) levels in the medium. Cytokines (IL-6, IL-8 and TNF-α) were increased in LPS-stimulated HaCaT cells after 3 days, and CGF slightly inhibited the mRNA expression of these cytokines. The RAS signaling pathway was activated upon CGF treatment. Both RAS knockdown and an inhibitor of RAS (zoledronic acid) could block the migration of HaCaT cells after CGF treatment. Protein expressions of CD31, ANGPT-1, and VEGF-A were up-regulated in a dose-dependent manner upon CGF exposure. The protein level of ANGPT-2 was down-regulated after CGF treatment. CGF could promote wound healing in vivo, as demonstrated using the full skin defect model in nude mice. Conclusions: CGF was shown to promote wound repair in vitro and in vivo. The RAS cell signaling pathway was responsible for CGF stimulating the wound healing potential of HaCaT cells.
Penagihan Pajak Dengan Surat Paksa Di KPP Pratama Banjarbaru Pada Masa Pandemi Covid-19
Authors: Wijayanti Tiara , Fitriandi Primandita
Published: December 2022

Pandemi COVID-19 yang melanda Indonesia sejak 2020 telah memberi dampak terhadap menurunnya penerimaan pajak. Hal ini disebabkan salah satunya karena tindakan penagihan pajak berjalan kurang maksimal, khususnya karena penyampaian surat paksa yang mengharuskan adanya pertemuan antara petugas pajak dengan wajib pajak. Penelitian ini bertujuan untuk mengetahui pelaksanaan penagihan pajak dengan surat paksa, target dan realisasi penyampaian surat paksa, serta hambatan dan upaya petugas pajak dalam mengatasi hambatan tersebut. Adapun metode yang digunakan adalah metode kuantitatif dan kualitatif, yang bersumber dari data penagihan pajak serta wawancara dengan petugas pajak di KPP Pratama Banjarbaru. Hasil penelitian menunjukkan bahwa pelaksanaan penagihan pajak dengan surat paksa di KPP Pratama Banjarbaru selama Pandemi COVID-19 tidak sepadat tahun-tahun sebelumnya, sebab adanya pembatasan sosial yang cenderung membatasi jurusita saat ingin menyampaikan surat paksa, baik di kantor maupun di tempat wajib pajak yang bersangkutan. Target dan realisasi penyampaian surat paksa juga turut menurun drastis selama adanya Pandemi COVID-19. Hal ini dilakukan sebagai bentuk penyesuaian atas banyaknya hambatan yang muncul diakibatkan Pandemi. Namun, meskipun demikian, KPP Pratama Banjarbaru tetap berhasil mencapai target penyampaian surat paksa.