bluuebunny/crossref_metadata_2025 huggingface dataset:
Analyzing Short Term Corporate Credit Risk Indicators Based on User Generated Content During the Corona-Pandemic
Authors: Mengelkamp Aaron , Marinski Frederik , Oevermann Amy , Vogelsang Maximilian
Published: May 2023

During the Corona-Pandemic, information (e.g. from the analysis of balance sheets and payment behavior) traditionally used for corporate credit risk analysis became less valuable because it represents only past circumstances. Therefore, the use of currently published data from social media platforms, which have shown to contain valuable information regarding the financial stability of companies, should be evaluated. In this data e. g. additional information from disappointed employees or customers can be present. In order to analyze in how far this data can improve the information base for corporate credit risk assessment, Twitter data regarding the ten greatest insolvencies of German companies in 2020 and solvent counterparts is analyzed in this paper. The results from t-tests show, that sentiment before the insolvencies is significantly worse than in the comparison group which is in alignment with previously conducted research endeavors. Furthermore, companies can be classified as prospectively solvent or insolvent with up to 70% accuracy by applying the k-nearest-neighbor algorithm to monthly aggregated sentiment scores. No significant differences in the number of Tweets for both groups can be proven, which is in contrast to findings from studies which were conducted before the Corona-Pandemic. The results can be utilized by practitioners and scientists in order to improve decision support systems in the domain of corporate credit risk analysis. From a scientific point of view, the results show, that the information asymmetry between lenders and borrowers in credit relationships, which are principals and agents according to the principal-agent-theory, can be reduced based on user generated content from social media platforms. In future studies, it should be evaluated in how far the data can be integrated in established processes for credit decision making. Furthermore, additional social media platforms as well as samples of companies should be analyzed. Lastly, the authenticity of user generated contend should be taken into account in order to ensure, that credit decisions rely on truthful information only.
Understanding the Motivations for SMEs in South Africa to Adopt Social Media
Authors: Mamorobela Stevens
Published: May 2023

Since the covid-19 pandemic in 2020, many businesses have relied on social media to stay abreast with the latest news, developments and to predict the future world of business. Many countries around the world instigated lockdown restrictions to curb the spread of the covid-19 virus, and social media platforms were very popular tools used for spreading the news. The proliferation of social media has also increasingly drawn the attention of Small and Medium Enterprises (SMEs) in South Africa to improve their efforts of sustaining their businesses.  Social media platforms have become popular in the business environments for their ability to increase market reach, transfer knowledge, and sustain the business. While many benefits of social media to enhance business performance have been studied, there are also skeptics on data privacy issues that social medial brings to the business. In the SME sectors in South Africa, social media are adopted due to their cost effectiveness and ease of use. However, little is known about the effect of data privacy issues on SME business performance. The literature of social media adoption indicates that the older generation of SME owners are skeptical about sharing their confidential business insight on social media platforms. This is despite the availability of many other literature studies that report on the increase of social media studies to enhance business sustainability. This study aims to produce knowledge for understanding the key motivations of SMEs to adopting social media despite the existence of data privacy issues on social media. Qualitative interviews were conducted with 13 SME entrepreneurs who were purposively selected based on their knowledge of social media, experience of its application in the business, industries and premises of the SME business in South Africa. The results of the interviews indicated that SMEs are generally aware of the data privacy issues surrounding the use of social media, and the adoption rate differs from younger and older generation of SME entrepreneurs.
Modelling Responsible Digital Security Behaviour for Countering Social Media Manipulation
Authors: Maathuis Clara , Chockalingam Sabarathinam
Published: May 2023

While the digital environment, and in particular social media, surrounds not only human’s identity and its societal functions projection, e.g., institutional and financial aspects, it also captures both individual and collective thoughts regarding former, ongoing, and future concepts, trends, and incidents placed in the physical world, in the digital environment, or in both which could impact both individual and collective consciousness, behaviour, and attitude towards different dimensions of reality. Accordingly, an initial attempt to define and model responsible digital security behaviour was made and ongoing discourses and AI-based solutions for tackling and containing social manipulation mechanisms exist in this domain. Noteworthily is that dedicated attention to understanding and modelling responsible digital security behaviour in social media for tackling and/or countering social media manipulation, e.g., disinformation and misinformation, still lacks.  To this end, this research aims (i) to capture the factors influencing user behaviour towards tackling and/or countering social media manipulation, (ii) to build a Machine Learning model that assesses user’s responsibility in relation to tackling and/or countering social media manipulation mechanisms, and (iii) propose a set of socio-technical recommendations for building resilience to such mechanisms. To accomplish these research objectives, a Design Science Research methodological approach is taken by designing, developing, and evaluating the model proposed through exemplification. Finally, this research aims to enhance digital security awareness and resilience to social media manipulation of users and policy decision-makers to manage and further extend in a responsible and safe way the digital environment.
Social media withdrawal: what social media services and activities teenagers miss when they are “switched-off”?
Authors: Adelhardt Zinaida , Eberle Thomas
Published: May 2023

Nowadays teenagers grow up with social media and various possibilities of digital communication. The offline and online lives of “digital natives” are tightly bound together and for most of them life without Internet is unthinkabe. However, what happens when teenagers do not have access to modern communication facilities and to social media? Do they miss these media? What services and which activities do teenagers miss? We gathered qualitative data from teenagers after three weeks of being completely offline in frames of a long-term adventure education program. We also gathered quantitative data on teenage media use before media withdrawal. 135 teenagers (M=14.47, SD=.56, 52% female) answered our questions within four years (34 teenagers in each of these years - 2018, 2019, 2020 - and 33 teenagers in 2021). After three weeks of complete media withdrawal two thirds of teenagers reported not missing social media or missing them to a minor extent. They described social media services as stressful, disturbing, extremely time-consuming and boredom-related. Several respondents replied that they had enough communication offline and felt good in the community that made online social media superfluous. However, every third teenager reported missing social media. The main reason was the desire to contact the personal social network. A few teenagers reported missing social media as a source of relaxation and an efficient way to “switch-off”. One out of four teenagers (23%) reported missing WhatsApp. One out of ten (11%) mentioned Instagram, but just one half in a context of missing it. WhatsApp and Instagram were also the most popular services among teenagers before withdrawal (94.3% of teenagers reported having a profile in WhatsApp and 73,3% of teenagers reported using Instagram). Only a few teenagers (2.2%) - all boys - mentioned missing YouTube. The article presents further results, discusses perspectives and limitations of the project.
Unethical practices and online business: perspectives of DSMM users
Authors: Saba Yawo Edem
Published: May 2023

The purpose of this paper was to review literature related to unethical practices and online business. The aim is to understand the perspectives of digital social media and mobile (DSMM) users. In order to do so, this paper was guided by five key objectives: to investigate the nature and types of unethical practices that are unique in online business, to determine the causes of unethical online business practices, to determine how users of DSMM are affected by the unethical practices/behaviors, to identify how the unethical practices/behaviors in online businesses can be minimized/ameliorated in order to protect online users, and to identify gaps that exist with regard to unethical practices and online business. The findings of this research paper indicate that there exists various types of unethical practices in online business which include; online insecurity, mistrust, unreliability of delivery of products and services and deception. The causes of unethical practices in online business are greed, poor compliance with the legal requirements for doing business, aggressive competition and insufficient legislative. The DSMM users tend to be affected by these unethical practices in a number of ways that include; loss of customer loyalty, unsatisfied customers and loss of business reputation. Finally, this research found that the unethical practices could be ameliorated by raising awareness about the ideals of ethical behavior in various forums and providing appropriate punishment for unethical behaviors, being truthful, honest, and prompt in all disclosures and external reporting. Based on these findings, this research work concludes that many online businesses, similar to other businesses have a weak ethical culture, and little progress has been achieved to reduce misconduct. Also, the study concluded that the consumer protection laws such as Consumer Protection Act in Kenya have far-reaching impact on (online) businesses; that businesses have significant roles to play in consumer protection and in the ethical transformation of business sector and that law do play significant roles in putting pressure on businesses to act in ethically responsible manner.
The social media value framework: development and validation of a conceptual framework for value creation
Authors: Kerry Littlewood  , Bick Geoff , Penman Neale
Published: May 2023

As social media sites continue to dominate attention, consumers are overwhelmed with content, campaigns and information in today’s virtual world. How do brands and marketers stand out and ensure that their social media communications result in value creation? While multiple studies have looked at behavioural and user acceptance theories to gauge social media use, the purpose of this study is to determine whether these factors are still relevant post COVID-19 and provide a holistic view across multiple behavioural theories. The study posits that perceived benefit and cost factors can be identified that statistically influence social media engagement with resultant creation of value to consumers. The methodology follows a deductive quantitative approach. Data was obtained using an online survey with closed-ended questions for demographic responses and a seven-point Likert scale as the measurement scale for the identified constructs. A total of 493 surveys were collected with 411 usable surveys from a global audience. Various statistical techniques were used for the analysis, including factor analysis and structural equation modelling. The preliminary findings of the study reveal that two of the benefit factors have influence on the intention to be satisfied when engaging with brands’ social media platforms: Perceived usefulness and perceived enjoyment had a positive influence and were seen as perceived benefits to engagement. Five benefit and cost factors, including perceived usefulness, perceived enjoyment, reciprocal communication, privacy concern and social media fatigue had a significant influence on trust and loyalty. The intention to be satisfied is highly significant when driving loyalty and trust and plays a moderating role. This study brings together multiple behavioural models and extends current knowledge on social media engagement and value creation. The study’s findings will assist marketers and industry specialists to develop effective social media strategies to enhance engagement and result in increased trust and loyalty in the post COVID era.
Age Differences in the Spread of Misinformation Online
Authors: Adaji Ifeoma
Published: May 2023

Research in the area of misinformation online has identified various factors as the reason why people spread misinformation online such as availability of technology, entertainment, ignorance, to pass time, altruism etc. However, how these factors differ from one age group to another is not known. Research also suggests that people of different generations or age groups behave differently and are influenced differently. While people of each age range will have differences among them, they will likely behave similarly compared to people of other age groups. Therefore, in determining why people spread misinformation online, it is important to investigate any differences based on the age groups of online users. This will ensure that interventions designed to curb the spread of misinformation can be tailored to people based on their age. To contribute to research in the area of determining why people of different age ranges spread misinformation online, we surveyed 113 social media users of varying age groups. Our results show that the younger participants between 18 and 34 years are more likely to spread misinformation due to the availability of technology, entertainment, the need to pass time, the fear of missing out, peer pressure and trust in people online.
Accounting and Social Media: A Structured Literature Review and Research Avenues
Authors: Galeotti Rubina Michela , Filocamo Maria Rita , Paoloni Niccolò
Published: May 2023

Purpose: Over the last ten years, social media gradually gained an increasingly active and relevant role in social and economic and corporate contexts. Particularly, social media plays a key role in accounting issues such as corporate strategy, corporate disclosure towards stakeholders, balance sheet and reporting. Thus, social media has become the easiest and most immediate way for companies to make execution of strategies and disclosure information and in general manage several accounting issues. In this scenario, this paper has the purpose to investigate the relationship between accounting and social media to draft emerging research paths and future avenues of research understanding what role social media is playing in companies and their value. Design/Methodology/Approach: We adopted the structured literature review (SLR) to draft emerging issues and future avenues in this field. This methodology contributes to identifying research trends and future research directors (Di Vaio et al.,2021; Secundo et al.,2020; Popay et al.,2006; Jesson and Lacey., 2020). Investigating relevant literature, we selected the range of keywords to compose the research query, we validated our results on Scopus database using the operator “TITLE-ABS-KEY”. In Line with our purpose we limited research query only to “final” documents published in “English” between 2018 and 2022. We conducted a not grey analysis identifying 206 articles about the theme of accounting and social media.Findings: Our analysis provides results on emerging issues and avenues in this research stream. Emerging issues are directed towards the relationship among accounting and social media, the effect of social media on the company system, how social media can serve a strategic level in the company, the role of social media in the organizational system, how social media are regarded by investors and so on. Originality/value: Our research contributes to increase the study on accounting and social media to offer readers a renewed perspective of study drafting the future research avenue.
The Image Rights Over Social Media Profile: Whose Identity is it Anyway?
Authors: Mashinini Nomalanga
Published: May 2023

We live in an online identity age where employees use their creativity to make their profiles distinctive to attract clients and collaborators. Social media profiles give employees, businesses, and organisations commercial advantages in their respective markets. However, social media profiles can cause problems when employees leave organisations. It is in the interests of the employer to maintain relations with clients that are connected to an employee’s profile. However, given that a social media profile is made up of personality attributes, the employee has a legal and social interest in the commercial value of their identity. This article critically assesses whether image rights can protect the social media profile as an attribute of a person’s identity when the profile has been used in the course of employment. The article begins with a legal analysis that raises questions about the nature and value of a social media profile as an aspect of the right to identity under the South African law of delict. The paper concludes with recommendations on how image rights can protect the employees’ interests over a social media profile even after their term of employment as their identity is inseparable from their person.
Kırma Taş Ocağı Çalışanlarının Psikososyal Risk Faktörlerinin Değerlendirilmesi
Authors: MUTLU Mert , KALKAN Murat
Published: May 2023

Artan nüfus yoğunluğuyla beraber insanoğlunun barınma ve yapı sektörlerinde ihtiyacı artmaktadır. Bu ihtiyacı karşılamak için taş ocaklarındaki malzeme üretimi artmakta ve hatta taş ocaklarının sayılarının artmasına neden olmaktadır. Taş ocaklarındaki çalışma koşullarının ağır ve tehlikeli olması insan sağlığı ve güvenliği bakımından önemli bir sorun olarak karşımıza çıkmaktadır. Bu kapsamda 6311 sayılı İş Sağlığı ve Güvenliği Kanunu’nda Risk Değerlendirmesi Yönetmeliği, doğrudan veya çalışanı stres ile dolaylı yoldan etkileyen psikososyal tehlikelerin işveren tarafından belirlenip kayda alınması gerekliliğini ortaya çıkarmıştır. Ancak psikososyal risk faktörleri, taş ocaklarında genelde önemsenmemektedir. Bu çalışmada Dünya Sağlık Örgütü (WHO) tarafından belirlenen kriterlere bağlı kalınarak hazırlanan anket yoluyla görüşleri alınan çalışanların demografik özellikleri ile birlikte, iş kazalarının oluşumunda psikososyal tehlikelerden kaynaklı en önemli risk etkenlerinin neler olduğu araştırılmış ve belirlenmiştir. Belirlenen bu faktörlerin çalışanda yaratabileceği mental olumsuzlukların neler olduğu detaylı bir şekilde vurgulanmıştır. Elde edilen sonuçların, işletmelerdeki söz konusu sürecin yeniden kolaylıkla yapılandırılabilmesi açısından karar vericilere, yöneticilere ve mühendislere yol gösterici olacağı düşünülmektedir.
AVALIAÇÃO DA ACURÁCIA DA TÉCNICA DE POSICIONAMENTO GNSS PPP-RTK COM O USO DO SERVIÇO DE CORREÇÃO TRIMBLE CENTERPOINT RTX
Authors: NASCIMENTO TEIXEIRA NIEL , COSTA CRUZ JÚNIOR DIONÍSIO , PEDRO DA SILVA NETO MIGUEL
Published: May 2023

The use of only one receiver at the user level, together with the solution of phase ambiguities as integer values, are among the main advantages of the PPP-RTK GNSS Positioning Technique. However, it is necessary to have a Geodetic Network at a global level for the generation of products, such as precise orbits and satellite clocks. Furthermore, to accurately estimate geodetic coordinates, all errors involved with the propagation of GNSS signals and with ground stations must be properly modeled and treated. Thus, the main objective of this work is to evaluate the accuracy of the PPP-RTK Positioning Technique, using corrections from the Trimble Centerpoint RTX Service in Brazil. For this, GNSS surveys were carried out in all states of the Federation in Geodetic Stations belonging to the SGB, whose coordinates were considered as reference in the evaluation process. Student's t statistical tests were applied – to detect possible trends (systematic errors) in the data, and Chi-Square to assess the precision of the coordinates. Finally, the results show that the horizontal accuracy improves gradually with increasing convergence time, reaching 0.025m ± 0.018m (Trend and Precision) for 15 minutes of convergence.
ANN and RSM Modelling and Optimization of Paraffins and Aromatics in Crude Oil Distillation Products’ Properties in Iraq
Authors: YAMİN Jehad , SHEET Eman , ِAL JUBORİ Ayad
Published: May 2023

Back-Propagation neural networks, as well as RSM-DOE techniques, were used to predict the properties of various compositions of Iraqi oil, which were presented in this study. Paraffin and Aromatics’ effect on petroleum properties, e.g., yield, density, calorific value, and other essential properties, were studied. The input-output data to the neural networks were obtained from existing local refineries in Iraq. Several network activation functions to simulate the hydrocracking process were tested and compared. the network function that gave satisfactory results in terms of convergence time and accuracy was adopted. The data were divided into training and testing parts. The results of the trained artificial neural network models for each one of the tested functions have been cross-validated with the experimental data. The network that compared well against this new set of data (i.e. testing data), with an average percent error always less than 3% for the various products of the hydrocracking unit were chosen for the study. Aromatics showed to have more profound effect on the Octane number at low concentrations of paraffin, while, for specific gravity and calorific value they have similar effects. As for boiling points and sulfur contents, aromatics have almost no effect at lower levels of paraffin.
VUCA DÜNYASINDA ÜST DÜZEY YÖNETİCİLERİN STRATEJİK KARAR ALMA SÜREÇLERİ ÜZERİNE BİR ARAŞTIRMA: TIM 500 ÖRNEĞİ
Authors: ÖZEKENCİ Emre Kadir , KOÇ Murat
Published: May 2023

VUCA kavramı içinde yaşadığımız dünyanın dinamiklerini ortaya koyan bir akronimdir. Soğuk savaş sonrası dönemi tarif etmek üzere ilk olarak askeri alanda, daha sonra ise iş dünyasında oldukça tartışılan bir kavram haline gelmiştir. “VUCA” kavramı, oynaklık ve belirsizlik sonucu ortaya çıkan birçok karmaşık ve muğlak olayların yer aldığı dünya düzeni olarak tanımlanabilir. Söz konusu ortamda işletmelerin stratejik karar alma süreçlerini nasıl gerçekleştirdiği ise büyük bir soru işaretidir. Bu bağlamda, bu çalışmanın amacı, VUCA dünyasında üst düzey yöneticilerin stratejik karar alma süreçlerini nasıl gerçekleştirdiğini incelemektir. Bu araştırma kapsamında Türkiye’nin en büyük 500 hizmet ihracatçısı listesinde (TİM) yer alan lojistik işletmelerindeki 20 üst düzey yönetici ile derinlemesine mülakat gerçekleştirilmiştir. Verilerin analiz edilmesinde “MAXQDA 2022 Analytics Pro” paket programı kullanılmıştır. Bu çalışmada, içerik analizine dair kod bulutu, alt kod istatistikleri, kod matrisi ve kod haritası analizleri yapılmıştır. Elde edilen bulgulara göre, VUCA dünyasında faaliyet gösteren yöneticiler sektördeki en önemli değişimin dijitalleşme ve mevzuat konusunda olduğunu ifade etmiştir. VUCA dünyasında lojistik sektörünün içinde bulunduğu belirsizliğin tetiklenmesinde döviz dalgalanmaları ve pandeminin kilit rol oynadığı belirtilmiştir. Buna paralel olarak, VUCA dünyasında lojistik sektörünün karşılaştığı en önemli sorunlar; müşteri sorunları, sınır kapılarında yaşanan sorunlar, akaryakıt fiyatları, konteyner sorunu ve kuralların sürekli yenilenmesi olarak ifade edilmiştir. Son olarak, lojistik sektöründe belirsizlik yaratan ve anlaşılması en zor (muğlak) durumun ekonomik dalgalanmalardan kaynaklı olduğu belirtilmiştir.
CdSeTe Kuantum Noktaları ile Bromo Krezol Mor Kombinasyonunun Spektrofotometrik Değerlendirmesi
Authors: DEMİRCİ Tuna , ELİBOL Erdem
Published: May 2023

Kuantum noktalar (QDs) sahip oldukları benzersiz optik ve elektronik özellikleri ile son yıllarda birçok

farklı teknolojik alanda popüler hale gelmişlerdir. Bu durum QD'lar ile organik bileşiklerin etkileşimine

olan ilgiyi arttırmaktadır. Bu çalışmada bu ilgiye temel alarak, CdSeTe QD'lar ile Brom Krezol Moru (BCP)

kloroform içerisinde oda sıcaklığın da etkileşimini ve CdSeTe QDs/BCP yapısının spektroskopik olarak

karakterizasyonu açıklamayı amaçlamıştır. Bu amaç doğrultusunda CdSeTe QDs/ BCP oluşumunun

etkileşimleri spektroskopik olarak Fourier dönüşümlü kızılötesi spektroskopisi (FTIR), absorbans ve

emisyon üzerinden karakterizasyon çalışmaları yapılmıştır. BCP'nin CdSeTe QD'lar ile hibritleşmesiyle

QDs'nin lüminesans pikinde 19 kat azalma tespit edilmiştir. Bununla birlikte Brom Krezol Moru (BCP) ile

hibritleşen CdSeTe QD'lar BCP'nin soğurma özelliğini 112.8 katına kadar arttırmıştır.
Cloning the homologue of gene encoding full-length CBF1 transcription factor from Olea europaea L. leaves
Authors: YURTSEVER Munise , ŞEKER Maide , VURAL KORKUT Şenay
Published: May 2023

One of the most prevalent environmental stresses that affects plants physically and physiologically is

the low temperature. Since low temperature adversely affects plant productivity Researchers

investigated the molecular processes that regulate the effects of cold stress on plants and discovered

many cold responsive genes as well as the control mechanisms that regulate them. CBF/DREB (C repeat

binding factor/dehydration response element binding factor) transcription factors induces the

expression of corresponding genes in plants in response to abiotic stress conditions such as cold,

drought and salinity. These transcription factors contribute to plant resistance to stress by activating

genes in various pathways. Genes encoding CBF transcription factors were first discovered in

Arabidopsis thaliana (L.). Later, Gene homologs were isolated and cloned from a variety of plants. They

belong to the AP2/EREBP protein family. In the present study, the full-length cDNA encoding homologue

of the transcription factor CBF1 was cloned from Olea europaea L. cv. Gemlik leaves. A 748 bp long

cDNA encodes a hypothetical protein of 224 amino acids. BLAST analysis revealed that the CBF1

sequences of Gemlik cultivar and wild olive were nearly identical. A phylogenetic tree was built using

Olea europea L. cv. Gemlik CBF1 sequence.
Confrontación contrarrevolucionaria y ramificaciones trasnacionales. El embate de Cruzada contra la CGT y el peronismo en 1965
Authors: Scirica Elena C.
Published: May 2023

Esta contribución analiza las estrategias desplegadas por los redactores de Cruzada en su polémica contra la CGT, en 1965. Ese embate, abordado desde una perspectiva católica intransigente, también visibiliza las divergencias entre distintos sectores del nacionalismo y del catolicismo. En este caso, esas diferencias se vincularon con las lecturas que hacían del sindicalismo, del peronismo y de su lugar como espacio de eventual entronque o contención del comunismo. Por otra parte, este análisis aporta elementos para ahondar en ciertas articulaciones trasnacionales del anticomunismo católico a partir del influjo de la Sociedade Brasileira de Defesa da Tradição, Família e Propriedade.
Ser Distrito : transformaciones y visiones en torno al Distrito de Diseño en la ciudad de Buenos Aires
Authors: Rosa Paula
Published: May 2023

Este artículo se centra en las intervenciones llevadas a cabo en el barrio tradicional de Barracas como parte de su inscripción como el Distrito de Diseño de la ciudad de Buenos Aires. Da cuenta de las transformaciones acontecidas en un viejo mercado para el funcionamiento del Centro Metropolitano de Diseño. Espacio dedicado al diseño, la creatividad y al despliegue de industrias innovadoras y considerado como hito fundacional del barrio como parte de la política económica y urbanística impulsada por el gobierno de la ciudad de Buenos Aires denominada Distritos creativos/económicos.

Como parte del análisis se presenta información obtenida de un relevamiento exploratorio llevado a cabo a residentes del barrio. Este permite conocer sus percepciones sobre la renovación del mercado y los cambios acontecidos en los últimos tiempos. El artículo se fundamenta también en observaciones participantes/recorridos barriales y en el relevamiento de diversas fuentes secundarias.
REASEARCH ON PEAR INFLORESCENCE RECOGNITION BASED ON FUSION ATTENTION MECHANISM WITH YOLOV5
Authors: XIA Ye , LEI Xiaohui , HERBST Andreas , LYU Xiaolan
Published: May 2023

Thinning is an important agronomic process in pear production, thus the detection of pear inflorescence is an important technology for intelligentization of blossom thinning. In this paper, images of buds and flowers were collected under different natural conditions for model training, and the images were augmented by data augmentation methods. Model training was performed based on the YOLOv5s network with coordinate attention mechanism added to the backbone network and compared with the native YOLOv5s, YOLOv3, SSD 300, and Faster-RCNN algorithms. The mAP, F1 score and recall of the algorithm reached 93.32%, 91.10%, and 91.99%. The model size only took up 14.1 MB, and the average detection time was 27 ms, which are suitable for application in actual intelligent blossom thinning equipment.
Análise do custo de garantia para equipamentos com dois modos de falha dependentes
Authors: Esteves Fernanda Márcia da Silveira , Silva Allan Jonathan da , Amorim Felipe do Carmo
Published: May 2023

Um procedimento comum na Engenharia de Confiabilidade é calcular a probabilidade de sobrevivência de um sistema em série. Utiliza-se esta formulação para calcular a confiabilidade de um equipamento com múltiplos modos de falha independentes. No entanto, perde-se a hipótese de independência entre os componentes do sistema quando se tem modos de falha correlacionados. Neste trabalho, foi utilizada uma distribuição de probabilidade bivariada, a distribuição de Gumbel, para calcular o custo de garantia de um produto sujeito a dois modos de falha não independentes. As funções densidade de probabilidade conjunta e de confiabilidade foram apresentadas e as equações de custo sob três diferentes políticas foram desenvolvidas a partir deste modelo. Um algoritmo foi desenvolvido para calcular o tempo médio para a falha supondo que a ocorrência de qualquer um dos modos de falha faça com que o cliente reivindique a garantia. Por fim, alguns exemplos numéricos e gráficos dos custos de diferentes políticas são apresentados.
Assessment of text competence in primary school students
Authors: Midrigan Tatiana
Published: May 2023

Learning the Romanian language and literature profiles the formation of a cultured speaker and reader. The literary text is a finished product, which involves the student in various activities of: comprehension, reception, interpretation, reinterpretation. Knowing the relationship between the author and the expressed reality facilitates understanding, stimulates curiosity and the desire to learn new information. Textual competence is the ability to understand, use and produce different types of texts, which we encounter and produce in our daily lives. The control experiment aimed at evaluating the level of formation of textual competence in primary school students, namely the components: reproduction competence; the competence of perception and understanding, the competence of interpretation, creative competence.
Clustered and Scalable Federated Learning Framework for UAV Swarms
Authors: Hoang Duc , Truong Vu Tuan , Le Hung Duy , Le Long Bao
Published: May 2023

Federated learning (FL) has emerged as a machine learning (ML) paradigm for distributed training without requiring trainers to share private data. Coevally, unmanned aerial vehicles (UAVs) become sufficiently powerful that they can contribute to training sophisticated ML models. Direct application of the conventional FL framework to a UAV swarm, however, could result in unnecessarily high communication and computation complexity. This paper aims to address this challenge by proposing a scalable and clustered FL framework for such large UAV swarms. Specifically, we develop a clustering scheme based on which the UAV-based wireless network is partitioned into different clusters coordinated by corresponding cluster-head UAVs forming a connected graph. While the cluster-head UAVs coordinate the ML model updates as in the conventional FL framework, we propose two intercluster model aggregation strategies to produce the final global model in each training round. Extensive numerical studies demonstrate the convergence and desirable trade-offs between training performance and communication efficiency of our proposed framework.
Lying to Ourselves: Has the U.S. Navy Become the Imperial Japanese Navy of 1941?
Authors: Kuehn John T.
Published: May 2023

The U.S. Navy’s current trajectory may remind the reader of the Imperial Japanese Navy (IJN) prior to the outbreak of World War II in the Pacific in late 1941. This article argues that many of the same problems the IJN faced against its larger U.S. opponent in World War II exist today in the U.S. Navy’s planning and preparation for possible conflict with the People’s Republic of China. Problems that both navies share include brittle readiness, planning for a short war with a resulting doctrine to match, and a fleet that is too small to sustain any form of attritional war at sea. The article further argues that in many senses the U.S. Navy is less prepared today than was the IJN in 1941. The author provides several recommendations for how to begin to correct these difficulties.
Shopeefood Customer Satisfaction Modeling Based on Webqual 4.0 and Kano Method
Authors: Perangin-angin Oktiviana , Sihotang Jay Idoan
Published: May 2023

The development of technology today allows many people to be able to maximize the use of the internet in meeting their daily needs. One of the applications used is Shopee with the Shopee Food service which offers many promos and various food options. The purpose of this research was to see the effect of the attributes in Webqual 4.0 on the projection of the Kano Model regarding customer satisfaction with ShopeeFood services. In this case, the researcher will conduct research on Indonesian Adventist University students as respondents to the research. The division of the questionnaire is divided into two main parts, namely the webqual method questionnaire which assesses the reality and expectations of the service, and the Kano model which assesses the functionality, dysfunctionality and importance of each feature or attribute. The results of the research show that the respondents were satisfied with the ShopeeFood service with a score of the Usability aspect with a score of 4.15, Information Quality with a value of 4.02, and Service Interaction Quality with a value of 4.00. The results of webqual data processing are supported by the results of the kano model questionnaire data processing. Where satisfaction with the ShopeeFood service is reflected in the presence of several features/attributes that meet the expectations of users. Overall, each feature/attribute is included in the Attractive category (A).
Quando a morte encontra as línguas, elas estão vivas
Authors: Barzotto Valdir Heitor , Perina de Souza Sheila
Published: May 2023

Este artigo objetiva refletir sobre os atentados à vida das línguas africanas, que vivenciaram a colonização, por meio das atitudes linguísticas frente a elas no período colonial e na atualidade. Discutimos a metáfora de morte direcionada às línguas, utilizamo-nos do conceito de necropolítica aplicado à língua, discorremos sobre o direito de matar estendido às línguas africanas na sociedade colonial e, especificamente, refletimos sobre os atentados à vida das línguas, lançando um olhar para as atitudes linguísticas frente ao kimbundu, língua de Angola. Diante das análises, observamos duas atitudes linguísticas: a) Ausência de nomeação e especificação da língua a que pertence o vocabulário em kimbundu; e b) Tratamento diferenciado entre as línguas europeias e africanas. Consideramos que essas atitudes linguísticas são oriundas de discursos pertencentes à mesma formação discursiva colonial, e atentam contra a vida das línguas africanas ainda hoje. Observamos uma certa limitação do uso dessas línguas em relação às línguas de origem europeias. Consideramos que no âmbito da linguagem, a necropolítica na colônia era pautada pelo desejo de morte social das línguas africanas expresso por meio de leis que proibiam o seu uso. Hoje as ações necropolíticas também podem ser expressas pelas atitudes que buscam circunscrever as línguas africanas a espaços específicos, atribuindo menor valor social quando comparadas às línguas europeias. Apesar das diferentes ações necropolíticas vivenciadas desde o período colonial, as línguas africanas seguem vivas.
Violencia y terrorismo económico en las tierras del pueblo asháninka, Perú
Authors: Jancsó Katalin
Published: May 2023

El presente artículo pretende ofrecer un breve esbozo sobre la historia de la resistencia continua de un pueblo nativo peruano, los asháninkas, explicando los principales motivos de los conflictos surgidos entre sus comunidades y los foráneos que llegaron y siguen llegando a sus territorios. Tras una breve descripción de las etapas más violentas de esta historia, nuestro objetivo es buscar la solución para el problema de estas comunidades; presentar y analizar los acontecimientos y avances más recientes, la situación actual de las comunidades, el surgimiento de sus organizaciones y líderes; y los desafíos con los que se enfrentan actualmente, así como algunas medidas e iniciativas gubernamentales o apoyadas por organizaciones internacionales en los últimos años. Para tratar estos últimos temas nos apoyamos en las leyes promulgadas, artículos periodísticos, entrevistas, análisis y comunicados de prensa de las distintas organizaciones internacionales e indígenas y de los órganos del Estado.
Arandu Eté e a arte de contar histórias
Authors: Monteiro Aloísio , Antunes Zephiro Kátia , Ribeiro Pimentel Lais Amanda
Published: May 2023

Este artigo tem duas inspirações fundamentais: o texto “O narrador” de Walter Benjamin e a cosmologia dos povos e comunidades tradicionais, especialmente dos povos indígenas, que tem como um de seus pilares a oralidade ou oratura como principal instrumento de transmissão do conhecimento. Nosso objetivo é reforçar a arte de narrar, tendo em vista o risco oferecido pelo avanço das novas tecnologias de informação e comunicação na ordem neoliberal, que nos retira da beleza do presente tempo, a troca afetiva de olhares e gestos, fundamental nessa forma ancestral de comunicação. Para isso, faremos uma reflexão teórica sobre os conceitos de memória e história, mobilizando a perspectiva da “história do contrapelo” de Walter Benjamin, para lançar luz sobre a necessária refundação da forma como contamos a história brasileira, aquela que deslegitima e horroriza as vozes e perspectivas dos povos e grupos oprimidos.
DEVELOPMENT OF A PROJECT FOR THE AUTOMATION OF THE SOUR WATER PARK OF THE SULFUR PRODUCTION UNIT
Authors: Il'ina Irina , Grishkina Tat'yana
Published: May 2023

This article discusses the issues of automation of the technological process, describes the basics of compliance with the design of the automation process to improve the efficiency of the technological process, and the development of the project of the acid water park management system
INDICATOR METHOD OF INVESTIGATION OF CONTACT DEVICE
Authors: Bal'chugov Aleksey , Badenikov Artem
Published: May 2023

It is proposed to use the indicator method for the experimental determination of the average residence time of the liquid on the new disk contact device. It is proposed to use an aqueous solution of MgCl2 as an indicator
PREDICTION OF PROPERTIES AND SIMULATION OF THE PHASE STATE OF MULTICOMPONENT SYSTEMS IN PYTHON
Authors: Semenov Ivan , Petrov Alexandr
Published: May 2023

The thesis considers an approach to compiling a mathematical simulation of chemical processes using the Python programming language. General information about the purpose and capabilities of the ‘Thermo’ and ‘Chemical’ modules is given. It is shown that these modules contain the main functions and classes that make it possible to predict the properties and to simulate the phase states of multicomponent systems
DEVELOPMENT OF A MOBILE APP BASED ON ANDROID OS FOR INTERACTION OF STUDENTS AND PROFESSORS
Authors: Fomin Mark , Senotova Svetlana
Published: May 2023

In the course of the work, a mobile messenger application is being developed for the possibility of remote interaction between students and professors. Application development is carried out in the Android Studio development environment for mobile devices running the Android operating system
CIRCULATION OF "GREEN" ENERGY
Authors: Konovalov Yuriy , Gusev Ilia , Shitenkov Grigory , Terekhova Anna
Published: May 2023

The analysis of the production of «green» electricity was carried out, the ways of circulation of «green» energy through I-REC certificates were considered
TECHNICAL INNOVATION OF ELECTRIC DRIVE FOR HEAVY VEHICLE
Authors: Konovalov Yuriy , Zhukov Nikita
Published: May 2023

A review of the technical innovations of the traction electric drive for a heavy vehicle is carried out, and the distinctive advantages are considered
NON-DESTRUCTIVE TESTING OF ELECTRICAL EQUIPMENT OF ELECTRIC DRIVES
Authors: Konovalov Yuriy , legin Alexandr , Mohamed Moaz Abdelazim Abdellatef
Published: May 2023

A strategy is proposed for using control methods of a different nature, which allows increasing the service life, maintaining durability, reliability and safety indicators of electromechanical systems of electrical equipment of electric drives
METHODOLOGICAL METHOD FOR ASSESSING THE CONTRIBUTION OF ENVIRONMENTAL FACTORS TO THE FORMATION OF THE DYNAMICS OF MASS NON-COMMUNICABLE DISEASES OF CHILDREN
Authors: Prusakov Valeriy , Prusakova Aleksandra
Published: May 2023

The main provisions of the methodological approach to assessing the contribution of local, general regional factors and their changes in the formation of the incidence of mass non-communicable diseases in children in dynamics in the industrial and background (non-industrial) territories of the Irkutsk region are presented
ANALYSIS MOTIVATION OF LEARNING ACTIVITIES IN UNIVERSITY
Authors: Gantimurova Julia , Ermolina Vladislava
Published: May 2023

To improve the quality of the educational process, a deeper understanding of the psychology of students and the motives of their educational activities is necessary; Ilyina using methods of statistical analysis
VERBS OF SPECIFIC PHYSICAL ACTIVITY
Authors: Grin Nadezhda
Published: May 2023

The article discusses compatibility of verbs of specific physical activity with certain lexical groups of nouns
THE ROLE OF ARGUMENT WORDS IN THE COMMUNICATIVE STRUCTURE OF THE STATEMENT
Authors: Sitosanova Ol'ga
Published: May 2023

The article deals with the argument words that are involved in the structurization of the statement
ISSUES OF EMPLOYERS' LABOR LEGAL PERSONALITY
Authors: Sorokina Anna
Published: May 2023

In this article the legal analysis of the employer's labor legal personality is carried out. The gaps of legal regulation are considered and the conclusion about the necessity to improve the labor legislation in this area is made
FEATURES OF SETTING PERSONAL FINANCIAL GOALS BASED ON THE APPLICATION OF SMART TECHNOLOGY
Authors: Filimonova Yuliya
Published: May 2023

The necessity of planning personal finances is substantiated, the essence of SMART technology is revealed, the features of setting personal financial goals based on the use of SMART technology are identified
METHODS OF INCREASING THE EFFICIENCY OF THE TUBE FURNAC
Authors: Orlova Ekaterina , Chernigovskaya Marina
Published: May 2023

The main reasons for the decrease in the efficiency of tube furnaces are considered. Methods to eliminate these causes are also proposed
DETERMINATION OF CORROSION WEAR OF VESSEL WALLS
Authors: Cherepanov Anatoliy
Published: May 2023

A method for determining the corrosion wear of the walls of vessels and apparatuses when reducing the initial size to the actual size under the influence of corrosion is considered
EXCAVATOR GROUP LUBRICATION SYSTEM LUBRICATOR WITH PNEUMATIC DRIVE
Authors: Arsent'ev Oleg , Vlasenko Ivan
Published: May 2023

A group lubrication system of mechanical components for a walking excavator is proposed, the original design of a lubricator with a pneumatic drive and a controlled electro-magnetic valve is developed
DEVICES FOR CYCLIC TESTING OF SAMPLES
Authors: Cherepanov Anatoliy , Samofeev Alexandr
Published: May 2023

Adaptations of various designs for testing flat samples under cyclic loads are considered
Effect of cast core dimensions on properties of aluminum alloys point joints
Authors: Ovchinnikov V.V. , Sbitnev A.G. , Polyakov D.A.
Published: May 2023

The effect of the diameter of the cast core of the welded joint of alloy 1915 performed by contact spot welding, on the strength of the joint under static and cyclic stretching is considerеd. It is possible to increase the maximum thickness of the welded parts by about 1 mm by reducing the diameter of the core for contact welding machines. It is advisable to use the design of joints with increased rigidity in the area of location of welded points to increase the static and cyclic strength of welded point joints.
Modeling and numerical analysis of helical rolling process of small diameter bearing tubes
Authors: Skhodtseva Yu.N. , Ivanov A.V.
Published: May 2023

The three-dimensional finite element modeling of the process for obtaining of cold-deformed bearing pipes of small diameter is performed. The cold helical rolling process of a pipe workpiece (sleeve) on a mandrel in three rolls of a planetary mill is studied. As a result of the modeling, a stress-strain state of the workpiece is studied and factors that affect the microstructure and plasticity of the metal are considered. The energy parameters of the rolling are determined.
Regularities of changes in physical and mechanical and corrosion properties of heat-strengthened reinforcing 35GS steel
Authors: Kutepov S.N.
Published: May 2023

The effect of heat treatment on the change in the physical and mechanical and corrosion properties of reinforcing 35GS steel is considered. It is established that the use of triple heat treatment (intercritical hardening from temperatures of 900/700 °C or 800/700 °C, followed by tempering at temperatures of 300 or 400 °C, respectively, hardening from 900 °C with double tempering (from 400 °C (oven heating) and 500 °C (electro-thermal hardening)), significantly reduce the sensitivity of reinforcing 35GS steel to hydrogen cracking. During intercritical hardening of 35GS steel with obtaining properties corresponding to the At600 class during the first hardening from 900 °C, the second hardening from 700 °C and tempering up to 300 °C resistance in an environment causing hydrogen cracking at stress intensity factor of 0.6 increases by 10 times (19.5 hours versus 2 hours) and during the first hardening from 800 °C, the second hardening 700 °C and tempering up to 400 °C resistance increases by 20 times (40.5 hours versus 2 hours). It is shown that under conditions of intense hydrogenation, to reduce the sensitivity of steel to hydrogen cracking, it is more preferable to use volume rather than surface tempering.