bluuebunny/crossref_metadata_2025 huggingface dataset:
O impacto do efeito barreira na mobilidade urbana sustentável
Authors: Spagnollo Pricila , Almeida Caliane
Published: April 2022

Na concepção sustentável, a mobilidade urbana precisa atender as necessidades atuais, considerando também o futuro, proporcionando impactos positivos na economia, no meio ambiente e na sociedade. No âmbito social, isso se torna possível quando seus benefícios são acessíveis a todos, evitando desigualdades, democratizando espaços e facilitando deslocamentos. Nesta perspectiva, a presença da ferrovia no espaço intraurbano constitui uma barreira física que condiciona e limita a mobilidade, resultando em um número reduzido de travessias ao longo de seu eixo que dificulta o acesso, segrega espaços, aumenta distâncias e tempo de deslocamento, influenciando a ocupação e o valor do solo urbano nas áreas lindeiras. Com base nesse contexto, o presente estudo tem como objetivo geral identificar e analisar as travessias e conexões na periferia de Passo Fundo/RS, onde a Ferrovia do Trigo encontra-se em operação, com intuito de compreender a influência do efeito barreira na mobilidade urbana na região. Para tanto, os procedimentos metodológicos consistiram na construção de referencial bibliográfico sobre o assunto, além da elaboração de mapas demarcando pontos de travessia (rua/ferrovia) e sua respectiva abrangência. Na sequência, foi realizada a sistematização de informações de modo a construir uma visão crítico-analítica, associando os preceitos teóricos à base cartográfica elaborada. Os resultados indicam que a mobilidade urbana na região em que a ferrovia está inserida é condicionada pelo número reduzido de travessias possíveis, que totalizam apenas 6 (seis) numa extensão de 4,3 quilômetros, aumentando a distância e tempo de deslocamento de quem trafega pela área, um importante subcentro da cidade, que possui conexão com a área central por meio da Avenida Brasil.
Território, urbanidade rural e sustentabilidade: um estudo sobre a recuperação das nascentes de uma comunidade rural de Patos de Minas/MG
Authors: Caixeta Cira Liria Borges , Piccinato Junior Dirceu
Published: April 2022

A preocupação da sociedade para com a sustentabilidade tem se intensificado nos últimos tempos, e diante da escassez de recursos naturais, estas ações visam garantir que o progresso aconteça em harmonia com a natureza, garantindo qualidade de vida tanto para a geração atual, quanto para as futuras. Tendo em mente a importância da recuperação das nascentes, uma vez que elas dão origem aos cursos d’agua, esta pesquisa se propõe a realizar um estudo sobre o programa Pronascentes, que tem a finalidade de proteger e as microbacias hidrográficas e as áreas de recarga dos aquíferos dos mananciais utilizados para a captação de água para abastecimento público das cidades operadas pela Companhia de Saneamento de Minas Gerais, a Copasa. O programa pretende, através da recuperação das áreas degradadas, conservar o meio ambiente e melhorar a qualidade de vida dessa população de pequenos agricultores e trabalhadores rurais. Com a participação da Companhia de Saneamento, de entidades ambientais, prefeitura e demais apoiadores, além da própria comunidade local, o projeto foi implantando no Distrito de Pindaíbas, localizado no município de Patos de Minas. O objetivo geral deste trabalho é demonstrar a eficiência do projeto executado e examinar os conceitos de território, sustentabilidade e comunidade, de mesmo modo que a temática apresentada pretende propor a discussão a partir da relação entre eles. Os procedimentos metodológicos utilizados são a revisão de bibliográfica para uma abordagem teórica e descritiva quanto aos assuntos anteriormente mencionados, e também entrevistas semiestruturadas com agentes que participaram do projeto. O principal resultado da pesquisa foi a identificação do fortalecimento do sistema integrado de gerenciamento de recursos hídricos, sustentado pela consolidação de uma gestão democrática e compartilhada entre o poder público, entidades privadas e a comunidade local. Foi possível verificar, que através do Pronascentes, reverteu-se uma situação de completa escassez hídrica para o abastecimento do distrito, para abundância de água dentro do pequeno período de apenas dois anos.
Simulação Computacional Sobre Desempenho Térmico em uma Residência Conjunta Localizada em Ananindeua-PA
Authors: Nobre Jean Carlos de Almeida , Sousa David Lohan Pereira de , Ribeiro Fábio dos Santos , Andrade Luiz Claudio Fialho
Published: April 2022

Neste artigo, são investigadas através de simulações computacionais as condições de conforto térmico de um conjunto residencial utilizando o software EnergyPlus. Análises sobre as cargas térmicas em sistemas da edificação são realizadas aplicando diversos materiais de construção em um modelo 3D do residencial, por exemplo, a modelagem é feita através da inserção de materiais com camadas paralelas entre si e perpendiculares ao fluxo de calor (reboco, tijolo, telha, laje, piso, etc.). O artigo tem como objetivo viabilizar o uso de simulações para gerar resultados do conforto térmico de uma edificação. Os níveis de temperaturas obtidos a partir das simulações são comparados com as condições de conforto térmico ideal, com isso o objetivo da pesquisa foi alcançado, pois foi possível demonstrar por meio dos resultados obtidos a efetividade do uso do software.
Engajamento em foco: uma análise do conteúdo conversacional de famílias em visita ao aquário Jacques Huber (Belém)
Authors: Massarani Luisa , Bizerra Alessandra , Aguiar Bruna Ibanes , Scalfi Graziele , Silveira Yan , Bezzon Rodolfo Zampieri
Published: April 2022

Neste estudo de abordagem quanti-qualitativa, analisamos o conteúdo conversacional de 13 famílias durante visita espontânea ao Aquário Jacques Huber, em Belém, com o objetivo de compreender como os membros das famílias se engajam com a exposição. Para a coleta de dados, utilizamos uma câmera subjetiva que fez os registros audiovisuais, que posteriormente foram analisados por meio da codificação das conversas entre os membros das famílias. Nossos resultados trazem evidências de que a exposição suscitou o interesse das famílias, que compartilharam informações sobre os animais ao longo da visitação. Em geral, os genitores direcionaram a atenção das crianças para os animais e fizeram perguntas que aguçaram sua curiosidade. As crianças participaram ativamente das conversas com os pais e mediadores, buscando respostas para as questões levantadas, lendo painéis e compartilhando seus conhecimentos. O engajamento das famílias se deu nos níveis cognitivo, comportamental e emocional, facilitado pelo encontro dos contextos dos visitantes e do aquário, que suscitou conversas significativas e a coconstrução de significado.
A method developed for calculating the fuel filter pressure drop caused by carbon-containing sediments in a liquid hydrocarbon fuel
Authors: Altunin K.V.
Published: April 2022

The paper introduces a theoretical study related to a new method for calculating the fuel filter pressure drop caused by sedimentation in a liquid hydrocarbon fuel (cooler) medium; describes some thermophysical properties of sediments in fuel systems of various heat engines; examines the inventions aimed at preventing the failure of filters and pressure drop in them. As the overview and analysis of scientific and technical literature discovered no methods for calculating the pressure drop on the filters of heat engines and power plants, we developed a new formula for calculating the fuel filter pressure drop caused by sedimentation, taking into account the thermal and electrical nature of carbon-containing sediments. Using this formula, we found a new method for calculating the pressure change, which can be used to calculate the residual life of filter elements, theoretically approbated the new method relying on the results of experimental studies by previous researchers who used aviation kerosene. As a result, we obtained the fuel filter operating time to failure in several operating modes. The method proves to be valid, as it is applicable for calculating the pressure drop in almost all ground, air, and aerospace-based heat engines and power plants under various operating conditions of the fuel system. Furthermore, the method can be used with various materials of the metal walls of filter elements, pumping speeds of hydrocarbon fuel, pressures at the fuel filters inlet, temperature conditions inside the fuel supply, and cooling channels of engines and power plants.
Determining binocular lenses orientation using inertial sensors: problem solution
Authors: Latonov V.V. , Belyakov N.V. , Petrov A.A. , Semenikhin T.A.
Published: April 2022

The paper considers a binocular-shaped device, which consists of two solid bodies — lenses connected by a common axis of rotation, and introduces a solution to the problem of the absolute and relative positioning of each of the lenses of the device using accelerometers, angular velocity sensors and Hall sensors installed in each of the lenses. To solve the problem, we developed an algorithm based on the Madgwick filter. The algorithm uses data from all sensors and determines the orientation of both lenses from this data. In addition to the information received from the sensors, the solution of the problem uses information about the geometric relationship imposed on the system — the common axis of rotation of both lenses. The ARTrack video analysis system was used to verify the obtained algorithm. The results of the filter operation were verified using the records received from the video analysis system.
Analysis of promising spacecraft solar cell designs
Authors: Ryabtseva M.V. , Lebedev A.A. , Naumova A.A. , Bolotin A.M. , Vagapova N.T. , Cherenkov P.G.
Published: April 2022

The paper presents results of computing power over initial volume, power over mass, specific mass, and other fundamental absolute and relative performance characteristics for various types of existing and promising solar batteries to be used in spacecraft. We describe photosensitive electric generating parts of solar batteries and propose to classify them according to the following features: type of photovoltaic converters used; the way that photovoltaic converters are protected from outer space factors; component switching implementation, etc. We consider different framework types, such as rigid and framed with flexible skin. We show that specific characteristics of domestic stringed frames (developed by JSC ISS — Reshetnev Company) are comparable to those of solid (rigid) frames produced by foreign companies. Moreover, the parameters under consideration as found in experimental integral structures or honeycomb frames (developed in Keldysh Research Centre), which have a low structural depth, exceed those by several times. The paper shows that solar batteries featuring photosensitive electric generating parts utilising four-stage photovoltaic converters based on AIIIBV materials boast the best specific power characteristics over mass and initial volume for any framework type, as well as the least degradation due to radiation exposure in the geostationary orbit. In the range of photosensitive electric generating parts featuring various three-stage photovoltaic converters, those that use standard 80 × 80 mm photovoltaic converters achieve the highest performance in terms of these parameters for stringed and honeycomb frames. JSC Research Production Enterprise Kvant supplies this type to the domestic market.
Using Peer Coaches to Support Integrating Research into the Curriculum: Impacts on Students, Coaches, and Faculty
Authors:   University of Central Florida, Walters Linda J. , Schneider Kimberly R. ,   University of Central Florida, Tripp Mary L. ,   University of Central Florida
Published: April 2022

Undergraduate retention, graduation, and postgraduation success are greater when students engage in undergraduate research. This article describes a grassroots, facultyinitiated effort to increase the number of students who received research experiences at a large, urban institution. Peer course coaches, students who had previously taken a course or with specific skills, helped faculty from all disciplines embed research in their undergraduate curriculum. The effectiveness of this program model for students (e.g., enhanced learning, new skills), coaches (e.g., leadership development), and faculty (overall experience) was evaluated. Data suggested program success from all participants. Everyone benefited from this model: faculty maximized student engagement, coaches received leadership experience, and undergraduates had experiences that will positively impact their lives and livelihoods.
Dampak Penggunaan Gadget dan Tingkat Kontrol Orang Tua Terhadap Produktivitas Belajar pada Remaja
Authors: Bulantika Siti Zahra , Sa'adah Sa'adah , Lacksana Indra , Majdi M.Zuhdi Zainul , Mafirja Sulma
Published: April 2022

Learning productivity is very important for teenagers, especially students, because it will have an effect on future success. The low productivity of students is caused by several factors, namely external and internal. The use of gadgets and the level of parental control are factors in student learning productivity. This study aims to determine the impact of using gadgets and the level of parental control on learning productivity in adolescents. This research is a quantitative research that uses the explanatory method. The population of this study were students of class IX MTS N 1 Bandar Lampung. The sampling technique used was Proportional Stratified Random Sampling and 63 respondents were selected. Hypothesis testing was carried out using Multiple Linear Regression Test. The results show that there is an effect of the intensity of the impact of using gadgets and the level of parental control on learning productivity in adolescents. This research is expected to be able to provide understanding for all parties, from students, teachers and also parents so that they can play a role, maximize or utilize the use of gadgets for things that have a positive impact.
Konseling Individu Dengan Teknik Self Management dalam Proses Rehabilitas Orang dengan HIV/AIDS (ODHA)
Authors: Nur Dalinur M , Marianti Lena , Aini Adestari
Published: April 2022

The purpose of this study is to find out what causes the client "R" with HIV/AIDS to be disobedient in taking drugs and to find out how to apply individual counseling with Self Management techniques in the rehabilitation process of HIV/AIDS sufferers to the client "R". This research uses a qualitative case study method, namely research conducted in depth on the research subject (Client "R"). The object is a close friend and companion of the client "R". The location of this research is on Jalan Prameswara, alley of Macan Akar Bukit Baru, Palembang city. Data collection tools in the form of observation, interviews and documentation. The data analysis technique uses pattern matchmaking, explanation and time series analysis. The results of this study indicate that (1) the causes of non-compliance by client "R" in taking drugs are feeling lazy because they always have to take medicine, forgetting to take medicine when traveling, and finally the side effects of drugs that make client "R" play. (2) the results of the application of individual counseling with self-management techniques in the rehabilitation process of HIV/AIDS patients on client "R" which was carried out six times, showed changes in behavior as expected where initially client "R" did not comply with taking drugs indicated by behavior taking drugs not on time, not in appropriate doses and even not according to the doctor's rules and instructions, where after individual counseling with the Self Management technique the client "R" has shown increased compliance in taking drugs, it appears that he has taken drugs on time, following the doctor's instructions and rules.
Penerimaan Diri Korban Toxic Relationship dalam Menumbuhkan Kesehatan Mental
Authors: Nihayah Ulin , Pandu Winata Ade Vinna , Yulianti Titin
Published: April 2022

Toxic relationship is one example of how then a problem that affects a person's relationship with his partner. This is usually indicated by a sense of competition from within the individual and the absence of cohesiveness. The purpose of this paper is to provide a better understanding of the self-acceptance of toxic victim relationships in fostering mental health, the author is also associated with a toxic victim case study entitled "An overview of acceptance of violence in early adults who are victims of dating violence", which includes an overview of how the attitudes and behavior of victims in accepting violence in dating and also the factors that influence it. The method in this research is descriptive research, where the researcher conducts an in-depth exploration of programs, processes, events, and activities of one or more people using a case study approach by finding a number of adult women who have experienced sexual experiences.
Social activity and social responsibility in the ideas and practices of modern youth
Authors: Kostina Elena , Orlova Nadezhda
Published: April 2022

Currently, the search for groups and individuals that can become the driving force behind the development of modern Russian society is relevant on the social agenda. Traditionally, it is the youth that is seen as a social group, devoid of the burden of the past and focused on innovation, transformation and reform. Today's young people live in a very contradictory world, facing greater social problems than other age cohorts faced previously. Thus, the realities of a market economy and the globalisation of social processes and interactions are superimposed on the values and ideas of freedom of choice, self-realisation, success in life, as well as the desire to actively participate in the society life. The question of the willingness of young people to bear social responsibility for the chosen forms and ways of influencing social processes and phenomena remains open, since responsibility for innovations being introduced is the other side of social and civic activity. The article presents an analysis of the data obtained by the authors in the course of a sociological study of the social, civic activity of young people, as well as the social responsibility of representatives of this socio-demographic group. The research project was implemented in December 2020 in the form of a questionnaire survey of the youth of Primorsky region, as well as in-depth interviews. It is emphasised that of particular importance in the study of this issue are the regional dimension of the life positions of young people, in the field of social activity in general, in understanding and comprehending the civic activity of their generation, in particular, and in assessing their own position in the coordinates of inclusion-exclusion. Attention is focused on the need for such a dialogue between society, government and youth, that is not limited to declarations, but is based on the mandatory development of mechanisms for involving youth groups in socially responsible practices, on stimulating specific youth initiatives, project and creative activities.
PERBANDINGAN KUALITAS CITRA PADA SOFWARE ASiR-V DAN NON ASiR-V DENGAN MENGGUNAKAN CT-SCAN GE
Authors: Bahrurridha Faisal , Suherman Puji Hartoyo , Tunggadewi Desty Anggita Tunggadewi Anggita
Published: April 2022

Abdominal MSCT examination generally uses a high exposure factor because the abdomen is a thick part of the body so it requires a high exposure factor. Adaptive Statistical Iterative Reconstruction (ASIR) is an IR-based reconstruction algorithm that can optimize image quality even though it uses a low exposure factor so that the radiation dose produced is also low. GE Healthcare offers Adaptive Statistical Iterative Reconstruction (ASIR) and introduces ASIR-V as the next generation in , the authors compare the image quality using ASiR-V and non ASiR-V software produced by comparing CT-number, CT-number uniformity, noise , uniformity of noise and spatial resolution, it is known that the use of non ASiR-V software has a better standard of image quality than ASiR-V in the aspect of spatial resolution.

 

Keywords: abdominal CT scan, ASIR-V, non ASIR-V, image quality.
Optimalisasi Lambung Kapal Penangkap Ikan Dengan Bahan Dasar Fiberglass Di Pelabuhan Perikanan Puger
Authors: Puspita Hery Indria Dwi , Kusnadi Ramli Firdaus , Syaikhu Dimas
Published: April 2022

Kapal penangkap ikan yang digunakan oleh nelayan di Pantai Puger umumnya masih menggunakan kapal ikan tradisional bermaterial kayu, yang dimodifikasi dari desain kapal sebelumnya. Tetapi seiring dengan perkembangnya waktu, membuat ketersediaan kayu menjadi berkurang. Sehingga perlu adanya alternatif bahan dasar untuk pembuatan kapal penangkap ikan. Alternatif yang dapat menggantikan kayu sebagai bahan dasar pembuatan kapal penangkap ikan di Perairan Puger adalah bahan fiberglass. Kapal penangkap ikan di Puger memiliki ukuran yang bervariasi sehingga perlu dilakukan suatu analisis ukuran kapal yang optimum untuk beroperasi di perairan Puger. Dalam menjaga keselamatan kapal dan kelayakan kapal, diperlukan suatu perbandingan antara beberapa parameter kapal penangkap ikan yang ada. Dengan menggunakan metode optimasi kemudian dianalisa sehingga didapatkan parameter ukuran kapal yang optimal. Sehingga hasil optimasi dari model kapal yang ada di Perairan Puger adalah untuk panjang (L) sebesar 15.57 m, lebar (B) sebesar 4.34 m, tinggi kapal (H) sebesar 1.49 m, dan sarat kapal (T) sebesar 0.56 m. Dari ukuran kapal yang optimal, kemudian dilakukan penggambaran bentuk lambung kapal penangkap ikan berbahan dasar fiberglass. Evaluasi yang dilakukan yaitu peforma kapal seperti hambatan (resistance), stabilitas (stability), dan seakeeping kapal. Sehingga dalam menentukan bentuk lambung yang memiliki karakteristik hambatan (resistance), stabilitas (stability), dan seakeeping kapal yang baik sesuai dengan Perairan Puger. Sehingga dapat memperbaiki dan menambah peforma dari kapal ikan tersebut dengan tujuan hasil penelitian ini yaitu dapat memberikan rekomendasi untuk perbaikan desain kapal ikan tradisional di Perairan Puger Kabupaten Jember.
Integrating STEAM with PjBL and PBL on biology education: Improving students’ cognitive learning results, creative thinking, and digital literacy
Authors: Hehakaya Wisye , Matdoan Muhammad Nur , Rumahlatu Dominggus
Published: April 2022

STEAM (Science, Technology, Engineering, Art, and Mathematics) is an innovative interdisciplinary learning approach that can be integrated with PjBL and PBL learning models. This research investigates the effect of STEAM combined with PjBL and PBL learning models on the cognitive learning results, creative thinking skills and digital literacy of Class X senior high school students at SHS 3 Maluku Tengah and SHS 39 Salahutu. This research was conducted in the even semester of the 2020/2021 academic year. The research instruments included an essay test and digital literacy observation sheets. The research data were analyzed using inferential statistics (ANCOVA and ANOVA). The research results indicate that the integration of STEAM with PjBL and PBL learning models significantly affects students’ cognitive learning results and creative thinking (p<0.05). However, the integration of STEAM and PjBL and PBL learning models does not significantly affect students’ digital literacy (p>0.05). The integration of STEAM with PjBL and PBL learning models provides innovation in implementing the two learning models, which improves the learning steps and the learning process. The integration of STEAM with the PjBL learning model can be used to enhance cognitive learning outcomes and creative thinking skills for other biological concepts in senior high school level learning.
Covid-19 literacy test: Developing of instruments and measuring for high school students
Authors: Nurseha Ilham , Miarsyah Mieke , Ristanto Rizhal Hendi
Published: April 2022

COVID-19 literacy is very important in dealing with the current pandemic, especially for students who will or are carrying out offline learning. So, it is necessary to develop an instrument that can measure the literacy ability of COVID-19. This study aims to develop an instrument that can assess the COVID-19 literacy level of high school students. The research method used is research and development with Borg & Gall model, which consists of eight stages namely (1) research and initial information collection, (2) designing, (3) developing initial products, (4) expert validation, (5) initial product revision based on input from expert validators; (6) Field trials, (7) revision, (8) implementation and dissemination. The results of the development obtained 28 items consisting of eight questionnaires and 20 multiple choice questions. The questionnaire aims to obtain descriptive data about students' attitudes towards the COVID-19 pandemic, while multiple choice questions are used to measure students' knowledge. The expert test results obtained a score of 3.56 so that the COVID-19 literacy instrument developed was in the very feasible category. In the next stage, the validity of multiple-choice questions was tested and 15 questions were included in the valid category, then the 15 questions obtained were tested for reliability, based on the calculation of the calculated r value greater than r table so that the developed instrument was reliable and could be used in subsequent research.
Student Preferences for Online Maths and Stats Support and difference on Mathematics Anxiety
Authors: Smith Jamie Ben
Published: April 2022

During the COVID-19 pandemic, many Maths and Stats Support (MSS) centres moved to offer wholly online support. By examining student preference scores to different types and deliveries of MSS, insight is gained into what forms of academic support students want going forwards. Students’ mathematics anxiety levels are evaluated in three distinct situations: in general, before online support, and before in-person support. Thematic analysis of student preferences identifies the key themes for students preferring different forms of support. Factors such as accessibility and support logistics are discussed as key features in determining students preferred support method.
CETL-MSOR 2021 - How did we do it?
Authors: Hodds Mark
Published: April 2022

In 2021 the Continuing Excellence in Teaching and Learning in Maths, Stats and Operational Research (CETL-MSOR) was hosted as a hybrid event for the first time. The event was attended by delegates from around the world both in-person and virtually through the use of Microsoft Teams live events. Presenters were also able to present from their homes or present with others in different locations, including at the conference venue in Coventry. This article is written by the chair of the organising committee and provides an insight into how the conference was organised and run behind the scenes, giving advice and feedback for future hybrid conference organisers to learn from.
Niveles de riesgo intra y extra laborales en una empresa de seguridad privada de la ciudad de Bogotá
Authors: Porras Velasquez Nestor Raul
Published: April 2022

El objetivo general de esta investigación empírica consistió en identificar los factores de riesgo psicosocial intra y extra laborales percibidos por los empleados del área operativa de una empresa de  vigilancia y seguridad privada en la ciudad de Bogotá. La metodología empleada fue de tipo descriptiva con una muestra no probabilista de 485 guardas de seguridad, colaboradores de la organización. Los resultados muestran que los factores de riesgos psicosociales intra laborales relacionados con los dominios relacionados con las  demandas del trabajo y el control  presentan niveles muy altos para la salud de los empleados mientras que los factores de riesgo  extra laborales con más altos puntajes están asociados a la dimensión tiempo fuera del trabajo, situación económica y desplazamiento vivienda-trabajo-vivienda. Las conclusiones evidencian en la población estudiada que las demandas emocionales, las demandas de la jornada de trabajo, el control y autonomía sobre el trabajo son los factores  de  riesgos psicosociales laborales que más impactantes en la salud mental y el bienestar de este grupo de trabajadores
The Psychometric Properties of the Nursing Warmth Behavior Scale Chilean version 35-item Likert Scale in the Puerto Rican Sample
Authors: Velez Alvarado Rita A , Velez Vega Abner
Published: April 2022

This study aimed to assess the psychometric proprieties of the Nursing Warmth Behavior Scale (Escala ECAE: Comportamiento de Calidez de Enfermería), Chilean 35-item Spanish version by Lagos Sánchez (2017) in the Puerto Rican population. Since there were no scales that measure nursing warmth behavior in Puerto Rico. This study applied quantitative non-probabilistic and instrumental and quota sampling. The sample consisted of 316 participants, and 66% were females. A Confirmatory Factor Analysis was used to examine the construct validity. The results show there was an unsuitable fit as a whole model, and the scale reduced to an 8-item scale with poor indices. However, there was an improvement in the CFI and TLI in Model 3; however, the scale possesses a good Cronbach’s alpha of (.93).Keywords: Confirmatory Factor Analysis, Likert Scale, psychometric, warmth, nursing, satisfaction
Optimization for multi-cell thin-walled tubes under quasi-static three-point bending
Authors: ALBAK Emre İsa
Published: April 2022

Approaches such as changing the cell number, changing the rib direction, and adding internal structure are utilized to acquire a multi-cell thin-walled structure, and these approaches have meaningful effects on the crashworthiness performance of multi-cell thin-walled tubes. In this study, a comprehensive review is done by using and comparing these approaches together under quasi-static three-point bending conditions. A different crashworthiness indicator is better for each of the produced multi-cell thin-walled structures. The overall best tubes are determined by the complex proportion assessment (COPRAS), a multi-criteria decision-making technique. The weights used in the COPRAS technique are calculated by the entropy method. Thus, two different tubes are chosen as the best ones. Then, multi-objective optimization is performed on these tubes with the multi-objective genetic algorithm (MOGA). The surrogate models of PCF and SEA, which are defined as the objectives in multi-objective optimization studies, are obtained by the (radial basis functions) RBF. Multi-objective optimized multi-cell thin-walled W1L1 and W1L1S1 tubes achieved the same SEA values as the W0L0 square tube at 13.1% and 15.4% lower PCF values, respectively.
The effect of telenursing on care of patients with cancer: a systematic review
Authors: Jafarpoor Hasanali , Rahimnejad Morteza , Mostafazadeh-Bora Mostafa
Published: April 2022

Purpose: cancer is chronic disease that can create numerous health problems. The utility of novel approaches such as telenursing can help patient with cancer. This study aimed to assess systematic review the effect of telenursing on care of patients with cancer.Methods: we searched electronic database from inception up to February 7 2022. The database include science direct, PubMed, Scopus, and Cochran database. In this study, the search process includes combination of keywords based on MeSH terms. All of articles with sevsral terms in title ″telenursing″, ″tele­_nursing″, ″cancer″, ″neoplasm″, ″tumor″, and ″malignancy″was included.Results: our initial search yielded 412 recorded, 8 studies were included. The data collected during time of study, recommends that telenursing improve supportive care needs of patients with cancer, quality of care, and patient satisfactory. Also, it decrease cancer complication as fatigue, nausea, depression, anxiety, pain, and feeling of well-being and reduce cost related cancer. Conclusion: although, most studies demonstrate that telenursing in cancer care is effective, a big challenge in this study was methodological heterogeneity and various instruments tool that influence correct assessment telenursing on cancer care. telenursing is as a new model in current century. The use of technology can help removal of long distance and cost restriction.
Associations of plasma aprepitant and its N-dealklated metabolite with cachexia progression and clinical responses in head and neck cancer patients
Authors: Suzuki Yusuke , Naito Takafumi , Shibata Kaito , Hosokawa Seiji , Kawakami Junichi
Published: April 2022

Purpose: Oral aprepitant has a large interindividual variation in clinical responses in advanced cancer. This study aimed to characterize plasma aprepitant and its N-dealkylated metabolite (ND-AP) based on the cachexia progression and clinical responses in head and neck cancer patients.Methods: Fifty-three head and neck cancer patients receiving cisplatin-based chemotherapy with oral aprepitant were enrolled. Plasma concentrations of total and free aprepitant and ND-AP were determined at 24 hours after a 3-day aprepitant treatment. The clinical responses to aprepitant and degrees of cachexia progression were assessed using a questionnaire and Glasgow Prognostic Score (GPS).Results: Serum albumin level was negatively correlated with the plasma concentrations of total and free aprepitant but not ND-AP. The serum albumin level had a negative correlation with the metabolic ratio of aprepitant. The patients with GPS 1 or 2 had higher plasma concentrations of total and free aprepitant than those with GPS 0. No difference was observed in the plasma concentration of ND-AP between the GPS classifications. The plasma interleukin-6 level was higher in patients with GPS 1 or 2 than 0. The absolute plasma concentration of free ND-AP was higher in patients without the delayed nausea, and its concentration to determine the occurrence was 18.9 ng/mL. The occurrence of delayed nausea had no relation with absolute plasma aprepitant.Conclusion: Cancer patients with a lower serum albumin and progressive cachectic condition had a higher plasma aprepitant level. In contrast, plasma free ND-AP but not aprepitant was related to the antiemetic efficacy of oral aprepitant.
Elucidation of Infection Asperity of CT Scan Images of COVID-19 Positive Cases: A Machine Learning Perspectives
Authors: Vinod Dasari Naga , Prabaharan S.R.S.
Published: April 2022

Owing to the profoundly irresistible nature of the SARS-CoV-2 infection, an enormous number of individuals halt in the line for CT Scan assessment, which overburdens the medical practitioners, radiologists, and adversely influences the patient's remedy, diagnosis, as well as restraint of the epidemic. Medical facilities like intensive care systems and mechanical ventilators are restrained due to highly infectious diseases. It turns out to be very imperative to characterize the patients as per their asperity levels. This article exhibited a novel execution of image segmentation and a machine learning approach for Covid-19 contamination asperity identification. With the help of the image segmentation model and machine learning classifier, we can identify and classify Covid-19 individuals into three asperity classes such as early, progressive and advanced, with an accuracy of 96% using chest CT scan image database. Experimental outcomes on an adequately enormous number of CT scan images exhibit the adequacy of the machine learning mechanism developed and recommended to identify Coronavirus severity.
The perceived support received by women with breast cancer during the COVID-19 pandemic: A qualitative study
Authors: Heidari Haydeh , Hamooleh Marjan Mardani- , Pezaro Sally
Published: April 2022

Background Women with breast cancer in Iran face challenges for which they require support. Yet the provision of support may have changed during the COVID-19 pandemic. Thus, the aim of the present study was to explore the perceptions of Iranian women with breast cancer in relation to the support they received during the COVID-19 pandemic.Methods This study was qualitative in nature. Semi-structured interviews were conducted with Iranian women with breast cancer. The interviews were transcribed verbatim and analysed via conventional content analysis. Results Participants (n=33) were Iranian women aged 29-58 years. All women included were married and were working in the role of being a housewife. Women's perceptions of breast cancer during the COVID-19 pandemic of support were identified under two main categories; Constructive support and Lack of support. Sub-categories related to constructive support included receiving support from family, peers, and nurses. Sub-categories related to lack of support included a perceived lack of spousal and sociocultural support.Conclusion Anti-stigma interventions are suggested to increase both spousal and sociocultural support in this context. Further studies may usefully be conducted with the participation of Iranian women's family members in order to gain a deeper understanding of the support received and required by Iranian women with breast cancer during the COVID-19 pandemic and beyond.
Rapid Recovery of Male Cats with Postrenal Acute Kidney Injury by Treating with Allogeneic Adipose Mesenchymal Stem Cell-derived Exosomes
Authors: Li Weihui , Wang Wei , He Xin , Liao Zheng , Aierken Aili , Hua Jinlian , Wang Yan , Lu Dezhang , Zhang Shiqiang
Published: April 2022

Background: Acute kidney injury (AKI) is a complex disease and can be generally divided into prerenal, in-trarenal, and postrenal AKI (PR-AKI). Previous studies have shown that mesenchymal stem cells (MSCs)-derived exosomes have protective function on prerenal and intrarenal AKI treatment, but whether they have therapeutic efficacy on PR-AKI remains unclear. In this study, we investigated the therapeutic efficacy of allogeneic adipose mesenchymal stem cells-derived exosomes (ADMSCEs) on a cat model of PR-AKI. Methods: The cat models of PR-AKI were established by using artificial urinary occlusion and then treated with ADMSCEs. Histopathological section analysis, blood routine analysis, plasma biochemical test, imaging analysis, and plasma ultra-high performance liquid chromatography-MS/MS (UHPLC-MS/MS) were performed to evaluate the therapeutic efficacy of ADMSCEs.Results: Physiological and biochemical test showed that the ADMSCEs could recover creatinine, urea nitrogen and plasma phosphorus to homeostasis efficiently. Blood routine analysis showed that leukocytes in PR-AKI cats with ADMSCEs treatment returned to normal physio-logical range more quickly than that of control. UHPLC-MS/MS analysis revealed that the plasma metabolome profile of PR-AKI cats treated with ADMSCEs was highly similar to that of normal cats. Furthermore, UHPLC-MS/MS analysis also revealed six metabolites (carnitine, melibiose, D−glucosamine, cytidine, dihydroorotic acid, stachyose) in plasma were highly correlated with the dynamic process of PR-AKI on cats and were potential novel targets for ADMSCEs therapy. Conclusions: Our findings demonstrate the efficacy of ADMSCEs in the treatment of PR-AKI on cats, and provide valuable reference for translational medicine research on PR-AKI treatment in elderly patients with MSCs-derived exosomes in the future.
A molecular dynamics simulation study on mechanical properties of nanocellulose-graphene layered composites
Authors: xing-li zhang , Chen Zhiyue , Chen Hao
Published: April 2022

Inspired by bioinspired layered materials with excellent mechanical and chemical property due to their interface cohesive force, a nanocellulose-graphene layered structure with covalent linkaged (C-C bond) is constructed. The mechanical properties are systematically studied by molecular dynamics (MD) simulations in terms of the effects of temperature, strain rate and the covalent bond contents. The elastic modulus and tensile strength of layered nanocomposites are sensitive to temperature and much higher than these of the pristine nanocellulose at the same temperatures. They also increase significantly with the increase of strain rate and covalent bond coverage. The results showed significant improvements in the mechanical properties by addition of grapheme layers due to the covalent bonding interactions and Van der Waals force interactions at the interfaces. These findings can be useful in further modelling of other graphene-based polymers at the atomistic scales, which are critical for their potential applications as functional materials.
Optically addressable universal holonomic quantum gates on diamond spins
Authors: Sekiguchi Yuhei , Matsushita Kazuki , Kawasaki Yoshiki , Kosaka Hideo
Published: April 2022

Spins in diamond are ideal for large-scale quantum processors and memories. Localized laser field offers spatial selectivity for electron spin manipulation through spin-obit coupling. However, it has been difficult to simultaneously achieve the precise and universal manipulation by itself. Here, we demonstrate microwave-driven holonomic quantum gates on an optically selected electron spin in a nitrogen-vacancy (NV) center in diamond. The electron spin is precisely manipulated with global microwave tuned to the frequency shift induced by the local optical Stark effect. We show the universality of the operations, including state initialization, preparation, readout, and echo. We also generate optically addressable entanglement between the electron and adjacent nitrogen nuclear spin, thus satisfying the scalability requirement of qubits. High fidelity operations are achieved by amplitude-alternating pulse, which are tolerant to fluctuations in microwave intensity and detuning. These techniques enable site-selective quantum teleportation transfer from a photon to a nuclear spin memory, paving the way for the realization of distributed quantum computers and the quantum Internet with large-scale quantum storage.
Effect of lead ions on biochemical behavior of Cladophora glomerata in sterilized and non-sterilized media
Authors: Çelekli Abuzer , Asatekin Elif
Published: April 2022

Freshwater ecosystems are under peril globally due to anthropogenic influences, most notably metals. The present study aimed to evaluate the morphological and biochemical responses of Cladophora glomerata obtained from a freshwater stream to various lead concentrations (0.0, 7.5, 15, 30, and 60 mg/L Pb2+) in sterilized and non-sterilized media. Pigments, proline, malondialdehyde (MDA), total phenolic compounds (TPC), hydrogen peroxide, and protein content of the green alga were determined in response to various growing conditions. Pb2+ stress had a detrimental effect not only on biochemical components of C. glomerata but also on the algal cell's shape and surface structure. High Pb2+ concentrations significantly decreased chlorophyll-a (from 1350 µg/g in non-sterilized and 1340 µg/g in sterilized media for the control group to 1067 µg/g in non-sterilized and 1049 µg/g in sterile media at 60 mg/L Pb2+) and protein content (from 34.47 mg/g for the sterilized and 35.89 mg/g for non-sterilized of the control to 24.82 mg/g for the sterilized and 26.18 mg/g for the non-sterilized at 60 mg/L Pb2+) of algal biomass but increased stress compounds (e.g., MDA, proline, and TPC). Variation in the macroalgal biomass composition was also indicated by FTIR analysis based on interactions between amino, amide, and anionic surface groups on the algal biomass and Pb2+ ions. Results indicate that this macroalga shows a broad tolerance to Pb2+ levels in non-sterile environments and that the biochemicals generated by C. glomerata may be used as biomarkers for oxidative metal stress, but further research is required.
Detection of the continuous gravitational wave of HM Cancri
Authors: Weidner Herbert
Published: April 2022

HM Cancri is expected to be be one of the brightest sources of gravitational waves in our galaxy. Despite its known frequency, the radiation could not be detected so far. A novel technique can compensate for phase modulation and detect this CGW in the records of superconducting gravimeters beyond doubt. This novel observational window will allow a deeper understanding of the enigmatic stellar system.
Assessment of Natural Radioactivity Concentration and Radiation Dose in Tanjung Enim’s Coal Mine, South Sumatra Indonesia
Authors: Ramadhany Muhammad Farhan , Wijaya Gede Sutresna , Muharini Anung
Published: April 2022

Environmental radioactivity analysis has been carried out to determine the level of environmental radioactivity and the potential radiological hazards at Tanjung Enim’s coal mine. Gamma spectroscopy method has been carried out to identify radionuclides and their types of activity. The results of radionuclide concentration are used to determine the radiological hazard index and become input data for the Residual Radioactivity Onsite 7.2 application to determine the dose rate and long-term cancer potential received by workers in coal mines. The results obtained for the average concentration of radionuclide activity in coal samples are 226Ra, 232Th, and 40K are 72.468 Bq/kg, 86.905 Bq/kg, and 1802.049 Bq/kg, respectively. While the soil samples 226Ra, 232Th, and 40K respectively 79.205 Bq/kg, 100.209 Bq/kg, and 1443.275 Bq/kg. The radionuclide concentrations of both samples exceeded the UNSCEAR and worldwide reported averages for coal and soil. The average radiological hazard index for coal samples, namely Raeq, Hin, and Hex, was 335.500 Bq/kg, 1.102, 0.906, respectively. While the soil samples were 333.636 Bq/kg, 1.115, and 0.901, respectively. The index parameter is already lower than the UNSCEAR recommendation except for Hin, so there is a potential radiological hazard in internal pathways such as respiratory and digestive organs for mining workers. The total annual effective dose rate based on 5 RESRAD-Onsite 7.2 pathways, namely external gamma, inhalation, radon, soil ingestion, and drinking water, is 1.675 mSv/year, exceeding the dose limits determined by ICRP, 1 mSv/year. The ELCR is 6.625×10− 3 which exceeds the UNSCEAR recommendation, 2.4×10− 4. Based on the results, it is necessary to intervene in the mining environment of the Tanjung Enim’s coal mine.
A Remarkable Case of Autoimmune Polyendocrinopathy, Candidiasis and Ectodermal Dystrophy Syndrome (APECED) misdiagnosed as Juvenile Idiopathic Arthritis on admission
Authors: Aytac Gulcin , Guven Burcu , Aydın Ilyas , Topyildiz Ezgi , Aykut Ayca , Aksu Guzide , Durmaz Asude , Karaca Neslihan Edeer , Kutukculer Necil
Published: April 2022

Background: APACED is a syndrome characterized by autoimmune polyendocrinopathy, candidiasis and ectodermal dystrophy. The most often observed clinical findings are chronic mucucutaneous candidiasis, hypoparatiroidism and autoimmune adrenal insufficiency. Case presentation: A three-year-old male patient admitted with classical signs of juvenile idiopathic arthritis and began to be treated with non-sterodial anti-inflammatory drugs. During follow-up, signs of autoimmunity, candidiasis, nail dystrophy and onychomycosis were observed. The parents were consangineous and Targeted Next Generation Sequencing was performed. A homozygous mutation in the AIRE gene SAND domain (c.769C>T, p. Arg257Ter) was detected and the patient was diagnosed as APACED syndrome. Conclusion: Inflammatory arthritis is rarely described in APECED cases and is often misdiagnosed as juvenile idiopathic arthritis. In APACED, non-classical symptoms such as arthritis may occur before developing classical symptoms. In patients with arthritis, considering about chronic mucocutaneous candidiasis and signs of autoimmunity will be useful for early diagnosis of APACED before developing complications.