bluuebunny/crossref_metadata_2025 huggingface dataset:
Yedinci Sınıf Öğrencilerinin Gözünden Bir Tübitak 4004 Projesi: Araştırıyorum, Sorguluyorum Bilimi Çok Seviyorum
Authors: METİN Mustafa , SERİN Hatice Kübra , KORKMAN Nurullah , ONER ARMAĞAN Fulya , KOLOMUÇ Ali
Published: July 2023

Bu araştırmanın amacı fen, matematik, sanat ve teknoloji entegrasyonuna yönelik etkinlikler içeren TÜBİTAK 4004 Doğa Eğitimi ve Bilim Okulları Programı kapsamında desteklenen “Araştırıyorum, Sorguluyorum, Bilimi Çok Seviyorum” adlı projeye katılan yedinci sınıf öğrencilerinin projeye yönelik görüşlerini incelenmektir. Nitel araştırma yöntemlerinden fenomenolojik araştırma yönteminin kullanıldığı bu çalışmanın örneklemini 2022-2023 eğitim-öğretim yılında Kayseri ili ve ilçelerindeki köy okullarında öğrenim gören yedinci sınıf 42 öğrenci oluşmaktadır. Çalışmada veri toplama aracı olarak araştırmacılar tarafından geliştirilen yarı yapılandırılmış görüşme formu kullanılmış olup verilerin analizinde içerik analizinden yararlanılmıştır. Çalışma sonucunda öğrencilerin projeden bilgi edindikleri, deney yapma ve kanıtlama becerileri kazandıkları, var olan bilgilerini derinleştirme yeteneklerinin arttığı, sosyalleştikleri, konular hakkında deneyim sağladıkları, eğlenceli vakit geçirdikleri, konu hakkında farklı bakış açıları kazandıkları ve laboratuvar kullanımına ulaşmaları kodlarında olumlu görüşler belirttikleri sonucuna ulaşılmıştır. Çalışma bulguları doğrultusunda projenin farklı ortamlarda yapılması, daha az katılımcı ile yapılması, projenin yaz tatilinde gerçekleştirilmesi, proje içeriklerinin azaltılması gibi önerilerde bulunulmuştur.
Respon Amerika Pada Kerja Sama China dan Rusia Dalam Perlombaan Luar Angkasa Kedua Tahun 2021
Authors: Venkarentino Hebeiyanjas Reyhan , Indrayani, SIP., MSi Irma
Published: July 2023

This study focuses on the dynamics and the American response to cooperation in the field of space carried out by China and Russia in 2021. The aim is to evaluate and describe America's response to the cooperation of the two countries so as to give rise to the second space race in the current international spectrum. Space Power theory is used in research in order to be able to analyze the cases in this study. Collecting data was carried out through a literature study sourced from books, online news, and other descriptive qualitative data. The analytical method is used by looking at the theory as a knife to dissect the problems in both parties. The results of this study indicate that both parties do not want to give in to each other, especially America. Because they want each other to take prestige degrees in the international world. Kajian ini berfokus pada dinamika dan respon Amerika terhadap kerjasama di bidang keantariksaan yang dilakukan oleh China dan Rusia pada tahun 2021. Tujuannya adalah untuk mengevaluasi dan mendeskripsikan respon Amerika terhadap kerjasama kedua negara tersebut sehingga saat ini menimbulkan perlombaan luar angkasa kedua dalam spektrum internasional. Teori Space Power digunakan dalam penelitian agar mampu menganalisis kasus-kasus dalam penelitian ini. Pengumpulan data dilakukan melalui studi kepustakaan yang bersumber dari buku, berita online, dan data kualitatif deskriptif lainnya. Metode analisis digunakan dengan memandang teori sebagai pisau untuk membedah permasalahan di kedua belah pihak. Hasil penelitian menunjukkan bahwa kedua belah pihak tidak mau mengalah satu sama lain, terutama Amerika. Karena mereka ingin satu sama lain mengambil gelar bergengsi di dunia internasional.
Eksistensi Surat Kabar Media Indonesia di Era Digital
Authors: Apriansyah Apriansyah , Fithriansyah Helmi , Rahadian Teguh
Published: July 2023

Competition in the media industry today is increasingly competitive. Competition is often an important factor in improving the performance of a media in maintaining its existence in the competition between media. The print media industry is faced with a variety of obstacles, ranging from high production and distribution costs to advances in information communication technology. The ability to adapt and innovate is needed to avoid the displacement of print media in the mass media industry. This research was conducted on Media Indonesia as a print-based conventional media industry that continues to strive to maintain its existence in the midst of the rapid presence of new media. This research uses the theory of Media Economics as originated by Robert Pickard, Media Economics is a study of how the media as an industry utilizes limited resources to produce and distribute content or content to audiences that aims to meet demands and needs. Through the interview method, information on what obstacles are currently faced in the media industry, especially print, can be confirmed. The high cost of production and distribution, changes in people's culture in seeking and consuming information and advances in communication information technology are also obstacles that must be taken seriously by industry players in print media.Kompetisi pada industri media saat ini semakin kompetitif. Kompetisi seringkali menjadi faktor penting dalam meningkatkan kinerja sebuah media dalam mempertahankan eksistensinya di persaingan antar media. Industri media cetak dihadapkan pada beragam kendala, mulai dari mahalnya biaya produksi dan distribusi hingga kemajuan teknologi informasi komunikasi. Kemampuan beradaptasi dan berinovasi diperlukan untuk menghindari tergusurnya media cetak dalam kancah industri media masa. Penelitian ini dilakukan terhadap Media Indonesia sebagai industri media konvensional berbasis cetak yang terus berupaya mempertahakan eksistensinya di tengah derasnya kehadiran media baru. Penelitian ini menggunakan teori Ekonomi Media sebagaimana dicetus Robert Pickard, Ekomoni Media merupakan studi yang mempelajari bagaimana media sebagai industri memanfaatkan sumber daya yang terbatas untuk memproduksi dan mendistribusikan isi atau konten kepada khalayak yang bertujuan untuk memenuhi permintaan dan kebutuhan. Melalui metode wawancara, informasi mengenai kendala apa saja yang saat ini dihadapi dalam industri media terutama cetak bisa dikonfirmasi. Mahalnya biaya produksi dan distribusi, perubahan budaya masyarakat dalam mencari dan mengkonsumsi informasi serta kemajuan teknologi informasi komunikasi juga menjadi kendala yang harus disikapi secara serius oleh pelaku industri di media cetak.
Strengthening Governance and Administrative Reform in Morocco
Authors:   FSJES, UMI LERES Meknes-Morocco, Eddine Naimi Jamal , Abdelmourhit Naimi ,   FSJES, UMI LERES Meknes-Morocco, Mohamed Ez-Zarouki ,   FSJES, UMI LERES Meknes-Morocco
Published: July 2023

Morocco has made many achievements over the past two decades in an effort to anchor good governance and transparency. The Government is committed to consolidating and intensifying the efforts made to achieve a qualitative leap in terms of governance and transparency, which is commensurate with the challenges of the 2011 Constitution, which meets the expectations of the Moroccan citizen, which improves the return on the efforts made and which ensures a better distribution of the benefits of the country’s development. This has been implemented during this mandate, through the deployment of the National Anti-Corruption Strategy, the strengthening of transparency, administrative deconcentration, the simplification of procedures as well as digitalization, which are powerful tools for both administrative reform and economic recovery
Management of Vulvar Cancer Our Clinical Experiences
Authors:   Konya City Hospital, Department of Obstetrics and Gynecology, Department of Gynecological Oncology. Konya, Turkey, Ates Mete Can , Guler Abdül Hamid ,   Tokat State Hospital Gynecological Oncology Department, Tokat, Turkey, Kulhan Mehmet ,   Selcuk University Faculty of Medicine, Department of Obstetrics and Gynecology, Department of Gynecological Oncology Konya, Turkey
Published: July 2023

Background/Aim: Vulvar cancer is a rare malignancy. It frequently affects postmenopausal women. There is no specific screening for vulvar cancer. Treatment is often surgical. The risk of recurrence is high. Lymph node involvement is an important prognostic factor in vulvar cancer. The primary purpose of this study is to share our institutional experience in managing vulvar cancer patients. Materials and Methods: This study is a retrospective study. The study was ultimately conducted with 39 participants. Descriptive analyzes are frequency, percentage, minimum/maximum values, mean, standard deviation, and median. Risk factors for relapse were evaluated by binary logistic regression analysis. Cox regression analyses analyzed analyzes of factors related to survival. Survival analyzes were calculated using the Kaplan-Meier method, and significant differences were determined by the Log Rank (Mantel-Cox) test. P<0.05 was considered statistically significant in the analyses. Results: Half of the patients (n=19; 50.0%) had vulvar mass complaints. While lesions related to vulvar cancer were observed in 13 participants before cancer diagnosis, no lesions were observed in 25 participants (65.8%). Squamous cell carcinoma was detected in 31 (81.6%) participants. Eleven (28.2%) participants had a recurrence. According to the logistic regression analysis, it was determined that the risk factors included in the model did not have statistically significant effects. Cox regression analysis was performed to determine the effects of factors on overall survival. It was determined that the factors included in the models did not have a statistically significant effect. Conclusion: Vulvar cancer is a type of cancer with limited prospective data. Therefore, it poses severe difficulties in treatment. Limited data on vulvar cancer necessitates the development of treatment paradigms. This means that we need to continue to study the disease.
A SIMPLE AND SELECTIVE METHOD FOR SIMULTANEOUS DETERMINATION OF PATULIN AND 5- HMF IN HONEY AND APPLE JUICE BY HPLC-UV
Authors: Tan Nguyen Thanh , Van Dong Nguyen , Hung Nguyen Ngoc , Tu Le Ngoc , Thang Nguyen Quoc , Vuong Nguyen Duc , Dang Nguyen Dang Hai , Hieu Tran Quang
Published: July 2023

A selective and sensitive method using a high-performance liquid
chromatography-UV detector (HPLC-UV) for the simultaneous determination
of Patulin (PAT) and 5-(hydroxymethyl)furfural (5-HMF) in honey and apple
juice was developed. The sample preparation technique QuEChERS was
applied to increase the sensitivity and selectivity. The linear ranges for PAT and 5-HMF detected by the method were 2.0 ppb ÷ 200.0 ppb and 2.0 ppm ÷
20 ppm. The results of method validation show that the recovery efficiency for
PAT ranged from 92.8% ÷ 98.2% with % RSDr from 0.56% ÷ 0.63% and from
97.9% ÷ 101.2% with %RSD 0.39% ÷ 0.67% for 5-HMF and LOD and LOQ
values of the method for PAT and 5-HMF detection were respectively: 0.6 and
2.0 ppb; 0.6 and 2.0 ppm. The influence of the matrix effect on the accuracy,
repeatability, and recovery of the method was insignificant. The proposed
method was applied to quantify the content of PAT, and 5-HMF in actual
samples, collected in Ho Chi Minh City, Vietnam. The result showed that PAT
was not found in honey samples but was detected in 5 of 10 apple juice
samples. In addition, 5-HMF was detected in 3 of 10 honey samples and 10 of
10 apple juice samples.
Data Science and Applications
Authors: Chinthamu Narender , Karukuri Manideep
Published: July 2023

This paper investigates the significance of data science as an indispensable instrument for decision-making across multiple domains. The study examines the history, concepts, methods, and applications of data science, as well as its impact on numerous industries, such as artificial intelligence, manufacturing, fintech, government, Astro-informatics, e-commerce, education, and biotechnology. ERP (Enterprise Resource Planning) software was first developed by SAP in the 1960s, with modern ERP systems emerging in the 1990s, according to the research. The paper highlights the significance of data science in enhancing the functionality of enterprise resource planning (ERP) systems, with AI-based solutions such as those offered by MahaaAi and other firms automating human tasks, chat-based ERP applications, and virtual assistant assistants support to avoid human efforts. The conclusion of the study emphasizes the significant benefits of data science in the ERP industry, including self-service analytics, predictions, and prescriptive analysis.
 
Received: 9 March 2023 | Revised: 5 May 2023 | Accepted: 4 July 2023
 
Conflicts of Interest
The authors declare that they have no conflicts of interest to this work.
Scheduling Algorithm in Infrastructure Less Network for PQ – A Study
Authors: Priyadharsini S. , Thamizhmaran K.
Published: July 2023

Due to its inherent resource limitations, wireless based dipole networks are increasingly being used in security-critical applications. As a result, they are more vulnerable to different security assaults, including the Grey-hole attack, which has a significant impact on data collecting. For WSNs, the Active Trust security and trust routing technique is suggested as a means of overcoming that difficulty. By using the NS2 Simulator to define the path for security in the priority queuing in scheduling algorithm, hostile nodes are reduced, speed is further improved, and at the same time, excellent security is created with minimal routing overhead. In order to fulfil security targets for the following metrics packet delivery ratio, routing overhead, and throughput, we are implementing a secure dynamic on-demand routing protocol. The performance of the priority queuing algorithm is assessed in this proposed scheduling task in order to achieve Quality of Service (QoS). The HHLS-MARS4 method improves the effectiveness of the network topology, allowing the proposed protocol to provide secure transmission while also reducing routing overhead, delay, and packet loss.
constitucionalização do direito à greve no Brasil
Authors: Souza Mylena Devezas , Chaves Luiza Alves
Published: July 2023

Hoje reconhecida como um direito constitucional, a greve já foi considerada apenas um fato social, e crime. Porém, desde 1946 a greve alcançou seu status constitucional, que passou por limitações e restrições até a Constituição de 1988. A presente pesquisa visa a apresentação da trajetória da greve, de um fato social à um direito fundamental constitucionalmente garantido. Realizou-se pesquisa bibliográfica e legislativa quanto aos dispositivos que regulamentaram a greve, com a apresentação dos contextos históricos. Com a pesquisa, foi possível identificar que embora as Constituição de 1946 e 1964 previssem a greve como direito, sua redação era limitada e sujeita a interpretações mais restritivas, ao contrário da atual Constituição que possui uma abordam mais ampla, garantindo aos trabalhadores a liberdade de se manifestarem por meio da greve como forma de reivindicar melhores condições de trabalho e direitos sociais. Deste modo, enquanto a Constituição de 1964 proibia a greve para o serviço público e atividades essenciais, a Constituição de 1988 garante o direito de paralisação para estes serviços, determinando a regulamentação de seu exercício por meio de legislação infraconstitucional.
IMPACTO SOCIOECONÓMICO EN BENEFICIARIOS DEL PROGRAMA 120 A LOS 65 DE LA REPÚBLICA DE PANAMÁ
Authors: Guerra Araúz Omaira Isabel
Published: July 2023

El programa 120 a los 65 consiste en la transferencia de una cantidad de dinero mensual para los panameños mayores de 65 años o más que no gocen de una jubilación o pensión. El presente artículo se propone como objetivo, analizar el impacto socioeconómico generado en los beneficiarios del programa 120 a los 65 en la República de Panamá. El estudio, se apoya en una investigación descriptiva, de campo. La información se obtuvo con la aplicación de la entrevista estructurada y la observación participante. La población estuvo conformada por 140.762 beneficiarios tomados de la data del año 2019, datos actualizados por el MIDES, tomándose una muestra estratificada de 384 beneficiarios distribuidos en las doce provincias de la República de Panamá. Para el análisis de los resultados se utilizó la estadística descriptiva y la triangulación de fuente. Como resultado más significativo de esta investigación se presenta el hecho de que en lo cuantitativo en un 42,7% casi nunca la transferencia aportada por el estado es suficiente para cubrir los gastos de los servicios básicos como agua, electricidad, gas, aseo urbano e internet, 27,6% indicó que nunca, 22,7 que a veces y 7,0 casi siempre le es suficiente, en lo cualitativo la triangulación arrojó que en mucho de los casos los beneficiario no invierten el dinero de la transferencia en sus necesidades básicas.
PSICOTERAPIA GRUPAL BREVE EN LA DISMINUCIÓN DE LA ANSIEDAD EN CUIDADORES PRIMARIOS DE PACIENTES ONCOLÓGICOS
Authors: Rivera Mora Vivian Tamara
Published: July 2023

Esta investigación se aplicó a familiares de pacientes con cáncer del Instituto Oncológico Nacional que ejercen el rol de cuidador primario y presentaron altos niveles de ansiedad como consecuencia de su rol; con el objetivo de determinar la efectividad de un tratamiento psicoterapéutico grupal en dicha población. La investigación se basó en la hipótesis de que los cuidadores primarios que presentan altos niveles de ansiedad asociados al rol y participan en una Intervención Psicoterapéutica Grupal Breve con enfoque Cognitivo Conductual, disminuirán los altos niveles de ansiedad al concluir la intervención. Se escogió un diseño de investigación cuasi experimental con preprueba/postprueba que se aplicó al grupo experimental y al grupo control. Las variables se dividieron en independiente (Terapia Racional Emotiva Conductual) y dependiente (altos niveles de ansiedad).  Se creó un formulario digital para registrar a las personas, se realizó entrevista clínica virtual para evaluar y obtener información relevante, se aplicó pruebas psicométricas para determinar el nivel de ansiedad y posibles psicopatologías; se firmó el consentimiento informado. Se registraron 31 personas y 12 cumplieron con los requisitos. Terminada la psicoterapia al grupo experimental, se colocó la postprueba a ambos grupos e inicio la intervención al grupo control cuyos datos no se incluirán en este trabajo. La Prueba t de Student no comprobó la hipótesis estadística, aunque cualitativamente se pudo observar cambios en algunas de las personas participantes.
PROCRASTINACIÓN ACADÉMICA EN ESTUDIANTES DE LA FACULTAD DE PSICOLOGÍA DE LA UNIVERSIDAD DE PANAMÁ
Authors: Corrales Christine , Cañizales Mendoza Miguel Ángel
Published: July 2023

La procrastinación académica es un fenómeno que afecta el rendimiento académico y la salud mental de los estudiantes a nivel mundial, es por ello que se realizó el siguiente estudio para indagar el estatus de un grupo de estudiantes universitarios en Panamá referente a este fenómeno. A través de un estudio descriptivo correlacional de diseño no experimental y corte transversal se investigó a 70 estudiantes de ambos sexos que cursaban la licenciatura en Psicología en la Universidad de Panamá. Por medio del uso de la estadística descriptiva y la prueba de Kolmogorov-Smirnov se concluyó que estos estudiantes presentaban altos niveles de procrastinación académica, adicional a ello un 49% de ellos manifestaron conductas como la postergación de tareas en niveles altos y un 44% manifestó poseer un bajo nivel de autorregulación académica; rasgos que manifiestan la posible existencia de dificultades en la vida académica.
An improved random forest algorithm for tracing the origin of metastatic renal cancer tissues
Authors: Li HaiDong , Xie Tao
Published: July 2023

Introduction

Tracing the histological origin of Metastatic renal cancer (MRC) and locating the pathological root cause, leading to precise treatment and improved prognosis options.

Material and methods

The 3336 patient cases with clear tissue origins from The Cancer Genome Atlas (TCGA) database were screened as experimental data material and feature selection was performed using the differential expression method; the random forest (RF) algorithm was improved to establish a medical retrospective heterogeneous filtered feature selection random forest weighted (ReliefFk_RFw) model to locate tissue origins.

Results

The differential expression analysis method screened 60 signature genes with good differential expression for tracing tissue origins (kidney renal clear cell carcinoma, kidney renal papillary cell carcinoma, lung adenocarcinoma, lung squamous cell carcinoma, liver hepatocellular carcinoma, pancreatic adenocarcinoma). Compared with traditional machine learning (support vector machine, decision tree, RF) models, the ReliefFk_RFw algorithm increased the average accuracy from 98.65%, 98.79% and 98.57% to 99.53%, the average precision from 95.58%, 96.40% and 96.54% to 99.36%, and the average sensitivity from 97.03%, 96.61% and 96.76% to 98.89%, mean specificity from 99.50%, 99.39% and 99.35% to 99.90%, and mean F1 score from 96.30%, 96.50% and 96.64% to 99.11%. The highest accuracy in localizing the origin of primary pancreatic cancer was achieved with 100.00% for different models of retrospective metrics.

Conclusions

The improved ReliefFk_RFw model is best for comprehensive assessment and can be used to trace the origin of MRC tissue to assist physicians in diagnosis and treatment.
TREE HEALTH ASSESSMENT FOR ROADSIDE TREE IN KOTA KINABALU CITY CENTRE, SABAH
Authors: Mojiol Andy R.
Published: July 2023

This study aimed to assess the health of main tree in the Kota Kinabalu City Centre, Sabah. In this study, principal evaluation standards were made by using visual observation of trees or Visual Tree Assessment (VTA). This study was conducted to identify any effect of damage or defect on trees via the observation of trees at their roots, stems, branches and leaves. There were five zones in the study area, namely from KK Lama and Jesselton Point (Zone 1) to Pasar Besar. The tree health parameters were evaluated from the presence of pests and diseases, trees health, foliage colour, the growth rate of trees, infections of the trees and potential failure of tree roots. In this study, nine of pathogens, pests and diseases of trees were observed, which were termites, fungi, aphid, mushrooms, epiphytes, parasites, ants, weeds and Whiteflies. This study showed that there were 23 species from the 688 stand of trees in the study area. The study found that the state average foliage colour was normal, a moderate growth rate and infection of the tree was still under controlled. The potential failure of tree root was found in low level as well. In a nutshell, the overall health of trees was found to be in good and moderate levels. This study was conducted as a reference in health detection of tree for The City Hall management (DBKK) and also as a reference for University students in conducting tree health assessment.
Dual Band F-Antenna for Europe and North America
Authors: Samudrala Prasad , Jose Justin , Kulkarn Amit
Published: July 2023

A single antenna for multiple bands are always beneficial from the design point of view. Here a single antenna which is fundamentally inverted F antenna is used, the uniqueness of the design is that , it uses trap technique to produce dual resonance from a single inverted F antenna . The trap used to block the current due to some frequencies and passes the current contributed by other frequencies. So in short , this trap is like a RF filter which has some passband as well as stop band. This trap approach uses a LC network to achieve this design goal .The two bands of interest are 865-870 MHz and 902-928 MHz .. The challenge of this design is that the frequency separation of the two bands is very small. In this case, and also the extra section for low frequency band is too small. Then, the influence of trap LC component variation due to tolerance to the two resonant frequencies is big, and so it is difficult to achieve good in band return loss within the LC tolerance. This is the main difficulty of this design. This issue is resolved by placing the low band section away from the end of the antenna. The antenna is designed on FR4 substrate material having thickness of 1.6 mm and hence it is a low cost solution which could use in various commercial applications which follows these bands.
ENHANCING NON-NATIVE ACCENT RECOGNITION THROUGH A COMBINATION OF SPEAKER EMBEDDINGS, PROSODIC AND VOCAL SPEECH FEATURES
Authors: Bera Anup , Agarwal Aanchal
Published: July 2023

The transcription accuracy of automatic speech recognition (ASR) system may suffer when recognizing accented speech. The resulting bias in ASR system towards a specific accent due to under representation of that accent in the training dataset. Accent recognition of existing speech samples can help with the preparation of the training datasets, which is an important step toward closing the accent gap and eliminating biases in ASR system. For that we built a system to recognize accent from spoken speech data. In this study, we have explored some prosodic and vocal speech features as well as speaker embeddings for accent recognition on our custom English speech data that covers speakers from around the world with varying accents. We demonstrate that our selected speech features are more effective in recognizing nonnative accents. Additionally, we experimented with a hierarchical classification model for multi-level accent classification. To establish an accent hierarchy, we employed a bottom-up approach, combining regional accents and categorizing them as either native or non-native at the top level. Furthermore, we conducted a comparative study between flat classification and hierarchical classification using the accent hierarchy structure.
THE ROLE OF PEDAGOGY IN THE HOSPITAL SCOPE AND ITS CONTRIBUTIONS
Authors: Da Silva dos Santos Jozelenita , Antonio Jackson Paiva José , Sousa Andreza Raul , Ivoneide Benecio Malaquias Alves Francisca
Published: July 2023

This work aimed to deepen the studies regarding the role of Pedagogy in the Hospital context and its Contributions. This work is divided into three chapters: the first presents a brief historical account of pedagogy in the Hospital environment in Brazil and the World, ‘’ the second goes deeper into the importance of pedagogy and its contribution in the hospital environment, finalizing the last chapter of the work of pedagogue and his experiences in the hospital. Making it possible to understand the need for intervention by the pedagogue from the existing point of view with an analytical look, positive or negative. objective, the well-being of children or users suffering from illness. With the support of theoretical references, the work clarifies the course of this educational area in Brazil, the Legal Bases that guide the theme, relationships between hospital educators and children, and the pedagogical projects existing in the Youth Children’s Hospital. The related research is called qualitative, the importance that Hospital Pedagogy exerts in hospitals, often helping in the treatment of children/adolescents.
Nivel de planificación y la competitividad de Mypes peruanas de venta de calzados
Authors: Cachay-Pilco Alexandra , Yalta-Panaifo Daxs , Vidaurre-Rojas Pierre , Fasanando-Garcia Segundo , Ludeña-Cardenas Juan Carlos
Published: July 2023

La planificación estratégica es esencial para mejorar la competitividad de una empresa que implica la formulación de objetivos a largo plazo y la identificación de las acciones necesarias para lograrlos; sin embargo, se ha identificado que las Mypes del sector calzado presentan deficiencias en su formulación e implementación, disminuyendo la ventaja competitiva en el mercado. Frente a ello, esta investigación propuso determinar la relación entre el nivel de planificación y la competitividad de las mypes de venta de calzados en la ciudad de Tarapoto, Perú. Para el logro el objetivo se administraron dos cuestionarios a 44 gerentes de las MYPE, siendo un estudio básico, relacional, no experimental y transversal. Los resultados demostraron que el nivel de planificación en las Mypes fue deficiente en 72,7%, y la competitividad resultó bajo en 75,0%; asimismo, se encontró relación significativa (p-valor < 0,05) entre las dimensiones implementación, formulación, evaluación y control, de la variable planificación con la variable competitividad. Se concluye existe una relación significativa entre la planificación y la competitividad, ya que la significancia bilateral resultó en un valor por debajo de 0,05 (0,000); además, la correlación entre estas variables fue bastante alta, alcanzando un valor de 0,594 según Rho de Spearman.
Midiendo la carga emocional: Análisis de las emociones presentes en contenido de tweets sobre COVID-19 en Lima
Authors: Holgado-Apaza Luis Alberto , Ancco-Calloapaza Coren Luhana , Bedregal-Flores Octavio , Quispe-Layme Marleny , Miranda-Castillo Ralph
Published: July 2023

Durante el estado de emergencia y las cuarentenas implementadas por los líderes mundiales, se ha observado un aumento significativo en la actividad de las personas en las redes sociales, como Twitter, donde comparten opiniones y noticias cargadas de emociones. En este estudio, presentamos una herramienta de visualización para el análisis de sentimientos en tweets relacionados con COVID-19 en la ciudad de Lima, Perú, durante el año 2020. Para ello, entrenamos un modelo BERT llamado BETO, diseñado específicamente para el procesamiento de lenguaje natural en español. Utilizamos el conjunto de datos SenWave, que comprende 11 emociones, para entrenar el modelo. Posteriormente, validamos el modelo utilizando un conjunto de datos compuesto por 33,770 tweets recolectados en la ciudad de Lima, Perú. El resultado de nuestro estudio es un panel de control interactivo que muestra el flujo de sentimientos expresados en los tweets analizados. Nuestros hallazgos revelan que las tres emociones más frecuentes durante el año 2020 fueron: humor, aburrimiento y optimismo. Además, identificamos las cinco palabras más populares utilizadas en los tweets: contagio, salud, distanciamiento, aislamiento y Martín Vizcarra, en referencia al expresidente del Perú.
Study on synthesis and the CO2 electrochemical reduction of Cu nanomaterials
Authors: Phan Thanh Hai  , Huynh Thi Mien Trung
Published: July 2023

Electrochemical reduction is considered as one of the simple and effective methods with respect to the CO2 conversion to value-added chemicals. With this regard, on the study of novel catalysts plays a crucial role for overcoming the chemical inertness and enhance the CO2 conversion efficiency. In this paper, nano Cu based highly efficient electrocatalysts for CO2 redution are developed by electrochemical deposition from the Cu2+ containing electrolyte. Crystalline structure and morphology of all synthesized Cu nanomaterials are characterized by means of X-ray diffraction (XRD) and scanning electron microscopy (SEM). Accordingly, all obtained Cu nanomaterials consist of both nanocuboid and dendritic features. The catalytic capability for CO2 reduciton of the fabricated Cu nanomaterials is determined upon using linear sweep voltametry (LSV) method. As a result, the sample electrodeposited for 240s exhibits the highest catalytic characteristics among others with the approximate efficiency of 85 % at the reduction potential of E = -0.5 V so với Ag/AgCl.
Study on synthesis of mesoporous ZSM-5 zeolite using carboxymethyl cellulose mesopore directing agent for re-arrangement of epoxide
Authors: Phan Huy Hoang  , Nguyen Thi Thu Thao
Published: July 2023

This current work presents a study on using carboxylmethyl cellulose (CMC) as mesopore directing agent for synthesis of mesoporous ZSM-5 zeolite. The results showed that CMC, a cellulose derivative can be used as potential mesopore directing agent for synthesis of mesopore zeolite material.  The obtained ZSM-5 zeolite was characterized by XRD, SEM methods and was used as catalyst for the isomerization of epoxide to synthesize aldehyde. The synthesized ZSM-5 catalyst exhibited a high catalytic activity and selectivity in the reaction. The highest conversion of about 98,2% was obtained when the isomerization of styrene carried out at suitable reaction conditions.
Electrochemical grafting assisted modification of graphite surface by 3,4,5-trimethoxybenzenediazonium based monolayer
Authors: Huynh Thi Mien Trung  , Tran Nam Trung  , Le Thi Ngoc Loan  , Nguyen Thi Xuan Huynh  , C
Published: July 2023

A conventional route to create such nanoscale electronic devices using the autonomous ordering and assembly of organic molecules on atomically well-defined surfaces has been proposed. However, these thin films are unstable in realistic environments due to weak interaction between the organic molecules and crystal surfaces. Therefore, enhancing the interfacial interaction between them is assigned as the key approach to extend the scope of application of these promising monolayer thin films. In this work, we demonstrate the formation of an organic monolayer, namely 3,4,5-trimethoxy diazonium (3,4,5-TMD), on a Highly Ordered Pyrolytic Graphite (HOPG) electrode by using the power of electrochemical method. The structural properties at the nano scale as well as the bonding nature between 3,4,5-TMD adlayer and HOPG electrode at the interface were investigated by a combination of cyclic voltammetry (CV), atomic force spectroscopy (AFM) and Raman spectroscopy. As a result, the 3,4,5-TMD molecules covalently bond to carbon atoms located at the HOPG interface for forming a monolayer with its thickness of 0.92 ± 0.02 nm. This finding opens a partway to apply the electrochemical grafting for covalent functionalization of 2D materials on HOPG and other metallic surfaces.
Study on the synthesis and properties of porous cadmium zeolitic imidazolate framework for environmental treatment
Authors: Ninh Duc Ha  , La Duc Duong  , Nguyen Thi Hoai Phuong
Published: July 2023

In this study, cadmium imidazolate frameworks were synthesized by a solvothermal method from cadmium acetate and 2-methylimidazole in an ethanol/methanol mixture. The Cd(Im)2 processed at 150 oC after 8 hours with the mixture of solvents has high crystallinity. The appearance of the absorption band at 407.73 cm-1 shows a link formation of Cd (II) and N within HIm’s molecule. Cadmium imidazolate only formats zeolite crystal, the network fibers were potent, and the pores were alike. The dimension of pores is approximately 200 nm. The XRD diagram shows that the Cd(Im)2 has high crystallinity. The Cd(Im)2 phase is obvious from reflections at 7o, 10o, 12o, 14o, 15,6o and 17o. The surface area of Cd(Im)2 was 662.894 m2/g or 858.389 m²/g with BET or Langmuir calculations, respectively. The maximum adsorption capacity of Cd-ZIF-8 for the RhB is 64.52 mg.g-1, and the adsorption data were fitted well with a pseudo-second-order model.
Research and manufacture of high purity γ-Al2O3, applied as an adsorbent to treat Rhodamine B pigment
Authors: Vuong Thanh Chung  , Nguyen Thi Tu Oanh  , La The Vinh
Published: July 2023

In the present study, γ-Al2O3 was fabricated from Tan Rai alumina hydroxide by some following steps: purifying alumina hydroxitde by HCl solution 5% to remove impurities, dissolving alumina hydroxitde by HCl 25% to obtain AlCl3 solution and then react AlCl3 with (NH4)2CO3 to get AACH, decomposition of AACH at 500oC to produce g-Al2O3. After that, Sodium dodecyl sulfate (SDS) was used to modify g-Al2O3 surface to increased the surface area. The material will be used to removal Rhodamine B from waste water.

The study shown that the modified γ-Al2O3 has a large specific surface area. The Rhodamine B in waste water can be completely treated by modified γ-Al2O3 at pH = 7, adsorption time 20 minutes, Rhodamine B concentration = 10 ppm with the amount of adsorbent used is 5 mg/mL.
The synthesis of γ-MnOOH nanorods as an efficient electrocatalyst for urea oxidation
Authors: Minh Tuan Nguyen Dinh  , Huy Thai Le  , Trung Hieu Le  , Chinh Chien Nguyen
Published: July 2023

In this study, γ-MnOOH nanorods synthesized by polysaccharide- assisted hydrothermal method as an efficient electrocatalyst for urea oxidation. The γ-MnOOH structure and morphology are confirmed by X-ray diffraction and scanning electron microscopy (SEM). The γ-MnOOH material, which contains hydroxyl groups and has an average oxidation state of Mn of three as demonstrated by XPS, exhibits excellent electrocatalytic activity towards urea oxidation reaction () compared to bare nickel foam (NF). Specifically, the overpotential at 10 mA/cm2 for γ-MnOOH is found to be 1.05 V, which is significantly lower than that of the NF (i.e., 1.12 V). Notably, the UOR over γ-MnOOH has a potential that is 180 mV lower than observed during the oxygen evolution reaction (OER) using the same electrode. These findings suggest that the γ-MnOOH nanorods could serve as a promising electro-catalyst for UOR in various energy storage and conversion applications.
The catalytic activity of manganese oxide catalysts for the toluene oxidation process
Authors: Tran Thị Thu Hien  , Nguyen Van Chuc  , Ly Bich Thuy  , Ta Dinh Quang  , Nguyen Thanh Hung  , Khong Manh Hung  , Le Minh Thang
Published: July 2023

Manganese oxide catalysts were prepared by several preparation methods, such as hydrothermal, sol-gel method, and characterized by XRD, BET, H2-TPR, SEM-EDS, and FT-IR. The catalytic activities of catalysts were evaluated through the toluene reaction at the temperature range of 150 oC – 400 oC. Among the catalysts, the @ MnO2 150  catalyst exhibited the highest catalytic activity. It could completely convert toluene into CO2 at 300  oC. The larger specific surface area and lower reduction temperature enhance the higher activity of the @ MnO2 150 catalyst. Thus, the @ MnO2 150  catalyst is chosen to study in the subsequent research.
Study on synthesis and characterization of electrocatalyst containing platinum on graphite electrode for hydrogen evolution reaction
Authors: Nguyen Thi Cam Ha  , Nguyen Huu Tho  , Nguyen Van Thuc
Published: July 2023

In this study, we have successfully synthesized electrode materials containing Pt on modified graphite by electrodeposition method, such as: Pt/C, Pt-Au/C Pt-Pd/C, Pt-Ni/C, Pt-Ni-Au/C, Pt-Ni-Pd/C. The formation of materials coating on the modified graphite surface is demonstrated through SEM, EDS results. Synthetic materials are used as catalysts for hydrogen evolution reaction (HER). The results show that Bimetallic composites containing Pt exhibit higher catalytic activity than the monometallic material Pt/C. Trimetallic materials Pt-Ni-Au/C and Pt-Ni-Pd/C have catalytic activity for HER insignificant lower than that of Pt-Au/C and Pt-Pd/C electrodes.  However, the precious metal composition in the trimetallic composite material system is reduced, which is also an important goal of research and opens up prospects for the fabrication of next-generation composite materials systems.
Os últimos serão os primeiros e os primeiros serão os últimos: inversões e contestações entre os grupos Yuhupdëh no Noroeste Amazônico.
Authors: Lolli Pedro
Published: July 2023

O artigo pretende revisar a dualidade índio do mato e índio do rio atribuída ao sistema social da região do Alto Rio Negro, a partir da posição dos Yuhupdëh, comumente referidos como Makú e índios do mato. Para tanto, será problematizada a distinção de duas figuras sociais que emergem dessa dualidade na qual, de um lado, encontra-se o hierárquico, o sedentário, o rígido, o fechado, o exogâmico, o horticultor, o ‘civilizado’; e de outro, o igualitário, o nômade, o fluido, o aberto, o endogâmico, o caçador, o ‘primitivo’. O experimento desse artigo é tratar a questão da hierarquia e da igualdade que subjaz à distinção índio do mato e índio do rio a partir de dois deslocamentos. O primeiro deslocamento consiste em examinar o problema da hierarquia e da igualdade a partir da perspectiva específica de alguns grupos yuhupdëh. O segundo deslocamento consiste em analisar e revisitar criticamente o modelo da teoria da dominação pressuposta na relação assimétrica entre os grupos yuhupdëh.
The Andaman Islanders, cem anos depois: quando o Golfo de Bengala disputou com a Melanésia
Authors: Bartel Bruno Ferraz , Boniolo Roberta Machado
Published: July 2023

Este artigo revisita o trabalho de Radcliffe-Brown, The  Andaman Islanders, em razão de seu centenário. O objetivo é apresentar as inovações teórico-metodológicas desta monografia para a Antropologia Social, mas também demonstrar a partir dela o amadurecimento intelectual do autor. Busca-se apresentar a traje- tória acadêmica do autor, destacando a sua inserção universitária, as influências teóricas, o trabalho de campo realizado no Golfo de Bengala, as experiências profissionais em diversos centros acadê- micos, bem como os pontos centrais do trabalho monográfico que reafirmam o valor da obra como um clássico.
Situando el enfoque de movilización de conocimientos en contexto indígena: un estudio de caso de Quebec
Authors: Piedboeuf Emmanuelle
Published: July 2023

A abordagem da mobilização de conhecimento é cada vez mais utilizada na pesquisa colaborativa em contextos indígenas. O objetivo deste artigo é apresentar e contextualizar este tema, em geral e no campo dos estudos indígenas. Para isso, analisaremos a história da mobilização do conhecimento e seu desenvolvimento por meio da política científica canadense, contextualizando os sistemas de conhecimento e seus detentores. Para entender melhor os problemas e desafios que podem surgir na implementação da abordagem, será apresentado um estudo de caso realizado no contexto do Quebec. Observamos uma rede de pesquisa e uma organização indígena, um projeto baseado na abordagem da mobilização e coprodução de conhecimento. Esses elementos fornecerão subsídios para reflexão sobre a epistemologia e metodologia de mobilização de conhecimento quando aplicada em um contexto indígena.
Um convite à leitura de Frantz Omar Fanon
Authors: Silva João Paulo De Azevedo , Silva Everaldo Fernandes da
Published: July 2023

Esse artigo é um convite à leitura compreensiva de Frantz Fanon que assim como nós, somos indagadores do mundo e sobre o mundo a partir das linhas divisórias e discriminatórias que, historicamente, construímos. Nessa perspectiva hermenêutica, Fanon nos presentifica com o sentir-pensar o mundo a partir de outro lócus de percepção e de enunciação em que os sujeitos sociais, as contingências e possibilidades históricas assumem-se como produtores de conhecimentos e como lócus de resistências e ressignificações. Utilizar as lentes fanonianas nos faz questionar a concepção de que o labor científico tem se tornado território de exclusividade dos varões brancos. Além disso, Fanon nos ensina a esperançar por um mundo melhor, por um lugar onde os negros possam reinventar-se além dos estereótipos socioculturais, a partir de si e do referencial que seu próprio povo se identifica, expressa-se e manifesta-se em suas singularidades.
Development of the toolkit for comparative studies: potential of cognitive pedagogy
Authors: Левина Е.Ю. , Кац А.С.
Published: July 2023

На пути системных трансформаций образовательных систем особая роль принадлежит поиску и регулированию собственных стратегий развития. Актуальность исследования вызвана необходимостью построения логической структуры выводных знаний компаративных и бенчмаркиговых исследований в педагогике. Адаптация успешного опыта и практик нуждается в осмыслении, проверке и прогнозном анализе при образовательном трансфере, что не всегда возможно при отсутствии формализации. Авторами предлагается инструментарий когнитивного моделирования для решения задачи формализации и логической структуризации данных компаративных исследований. Базируясь на методологии когнитивной педагогики, мы обобщаем особенности когнитивного моделирования образовательных процессов или ситуаций и предлагаем алгоритм построения когнитивной модели, визуально и формализовано отражающей исследуемый процесс. На примере полученных ранее данных компаративного исследования системы профессионального развития преподавателей высшей школы Китая построена когнитивная карта, отражающая закономерности и связи концептов предметной области. Полученная модель способна к детализации любого уровня при необходимости проведения дальнейших аналитических и сравнительных исследований. Статья предназначена исследователям, педагогам, занимающихся вопросами компаративистики, педагогической квалиметрии и профессиональным развитием преподавателей высшей школы.

Special role belongs to search and regulation of one’s own developmental strategies on the way of systemic transformations of educational systems. The relevance of the research is due to the need of creation of logical structure of output knowledge of both comparative and benchmarking research in pedagogy. Adaptation of successful experience and practices needs reconsideration, checking and the expected analysis at an educational transfer, which is not always possible in the absence of formalization. Authors suggest toolkit of cognitive modeling for the solution of a problem of formalization and logical structurization of data of the comparative research. Being grounded on methodology of cognitive pedagogy, we generalize features of cognitive modeling of educational processes or situations, and we would like to suggest an algorithm of creation of cognitive model, visually and formally reflecting the studied process. The cognitive map reflecting regularities and inter-connections of concepts of subject domain is constructed based on the example of the data of the comparative research of a system of university-teachers’ professional development in China, obtained earlier. The received model is capable to specification of any level in need of carrying out further analytical and comparative research. The article is intended to researchers, teachers, dealing issues of comparativistics, pedagogical qualimetry, and university-teachers dealing with their professional development.
Ways to develop «soft skills» through interactive learning technologies at a technical university
Authors: Одарюк И.В. , Колмакова В.В. , Маруневич О.В.
Published: July 2023

Актуальность данной статьи обусловлена развитием современного общества и необходимостью формирования нового поколения будущих инженеров. Раскрыты сущность и значимость «мягких навыков» для профессиональной деятельности выпускников технических вузов. Отмечается прямая связь «мягких навыков» и универсальных компетенций, которые являются едиными для всех направлений подготовки в соответствии с уровнями образования. Определен набор «мягких навыков», активно влияющих на готовность будущих инженеров осуществлять самостоятельную трудовую деятельность. Предложены пути развития «мягких навыков» с помощью современных интерактивных технологий. Статья представляет интерес для преподавателей вузов, методистов, занимающихся изучением и разработкой педагогических технологий в профессиональном образовании.

The relevance of the article is determined by the development of an up-to-date society and the need to form a new generation of engineers. The paper is focused on the concept and key features of soft skills for the graduates ’professional activity in a technical university. We have managed to find a direct connection between soft skills and universal competencies, which are the same across all training domains and educational levels. Besides, we have defined a set of soft skills that directly affects the future engineers’ readiness to engage independent professional activities. Additionally, we have suggested strategies for enhancing soft skills with the aid of advanced interactive technologies. The paper will be useful for university teachers, methodologists involved in the study and development of teaching technologies in the professional education.
OZONOTHERAPY AT CORONARY HEART DISEASE
Authors: Kovalchuk L. S.
Published: July 2023

The effectiveness of ozonotherapy in 96 patients with coronary heart disease has been studied both as the monotherapy and within the traditional. It was revealed that ozonotherapy is a highly effective economically beneficial and perspective means of treatment of the patients with the coronary heart disease.