bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluation and homogenization of a marine gravity database from shipborne and satellite altimetry-derived gravity data over the coastal region of Nigeria
Authors: Bako Michael , Kusche Jürgen
Published: September 2024

Accurate geoid modelling in marine areas requires the integration of gravity data from multiple sources including shipborne gravity measurements, global geopotential models, and satellite altimetry-derived gravity data. This study aims to develop homogenized gravity data for the coastal region of Nigeria to improve geoid modelling accuracy. Residual linear drifts in the shipborne gravity dataset from the Bureau Gravimétrique International (BGI) were corrected using crossover adjustments for each survey leg. We eliminated gross errors for each survey leg by using the 2-sigma method. Outliers in the historical shipborne gravity data were identified and removed using the leave-one-out cross-validation technique, resulting in a refined shipborne gravity dataset. The refined shipborne data were compared with the gravity data predicted by DTU21GRA, SSv29.1, SGG-UGM-2, XGM2019e_2159, GECO, EIGEN-6C4, and EGM2008. Our findings show that DTU21GRA outperformed the other models in the same region when compared with shipborne gravity data. The refined shipborne gravity data were merged with the DTU21GRA data using Least-Squares Collocation (LSC) to create a combined gravity dataset. The results of comparison between the complete refined shipborne gravity data and DTU21GRA before and after the integration process, shows that both the mean offset and the SD values decreased from 0.43 to −0.02 mGal and 3.14 to 2.69 mGal, respectively, which reveal an improvement in the final combined data. The geoid model constructed using the combined gravity data before and after the integration process showed an improvement in the SD values, decreasing from 0.023 m to 0.016 m when evaluated against the CNES-CLS22 MDT.
La Démocratisation Sous la Menace Révolutionnaire
Authors: Franck Raphaël
Published: September 2024

Cette étude présente une revue de la littérature ayant trait à la démocratisation sous la menace des révolutions. Elle met en parallèle les analyses arguant que la démocratisation résulte de l’action des élites qui bénéficient de l’extension du droit de vote à d’autres segments de la société. Elle analyse également les tests empiriques qui valident ou infirment les théories de la menace révolutionnaire.
Improving heat transfer efficiency via optimization and sensitivity assessment in hybrid nanofluid flow with variable magnetism using the Yamada–Ota model
Authors: Panda Subhajit , Pattnaik Pradyumna Kumar , Mishra Satya Ranjan , Alkarni Shalan , Shah Nehad Ali
Published: September 2024

The study aims to investigate the heat transfer efficiency in a hybrid nanofluid flow consisting of silver–molybdenum tetra sulphide (Ag–MoS4) with variable magnetism. The Yamada–Ota model is incorporated to account for viscous dissipation and heat source/sink effects, providing a comprehensive understanding of the fluid flow characteristics. However, the dissipative heat along with thermal radiation combined with the hybrid particles enriches the flow properties. The proposed model is simplified to its corresponding non-dimensional form for using proper similarity rules, and the set of transformed problems is handled numerically by employing the in-house MATLAB function bvp5c. The research utilizes a new statistical approach based on response surface methodology (RSM) and sensitivity evaluation to enhance the overall heat transmission performance. The work is conducted to obtain the relevant data on heat transfer rate. The concentration of nanoparticles, thermal radiation, and heat source are selected as the key parameters affecting the heat transfer efficiency. RSM is employed to optimize these parameters and determine the optimal conditions for enhanced heat transfer rate. Furthermore, the sensitivity analysis is performed to evaluate the efficiency of individual parameters on heat transportation. The findings of this study demonstrate that the hybrid nanofluid flow of Ag–MoS4 exhibits improved heat transfer efficiency compared to conventional fluids. Further, the Yamada–Ota conductivity model is also influential in enhancing the heat transfer properties.
Community Readiness
Authors: Brand Tilman , Gansefort Dirk , Müllmann Saskia , Zeeb Hajo
Published: September 2024

Community Readiness bezeichnet das Ausmaß, in dem eine Kommune willens und in der Lage ist, sich eines Gesundheitsthemas anzunehmen. Es handelt sich um ein theoriebasiertes Modell, das zur Bestandsaufnahme und gezielten Maßnahmenplanung in der kommunalen Gesundheitsförderung genutzt werden kann. Basierend auf Erfahrungen im Ready to Change-Projekt beschreiben wir in diesem Beitrag das Vorgehen und benötigte Ressourcen für die Arbeit mit dem Community Readiness Modell.
Evaluation einer Förderung zielgruppenspezifischer Interventionen in Kommunen
Authors: Altmann Nina , Vollmer Janko , Stengel Verena , Loss Julika , Kolip Petra
Published: September 2024

Das GKV-Bündnis für Gesundheit fördert 51 gesundheitsfördernde Interventionen für vulnerable Zielgruppen in Kommunen. Die wissenschaftliche Programmevaluation führte eine Online-Befragung der Projektkoordinationen nach zwei Jahren Förderung durch. Die Zwischenergebnisse zeigen, dass Strukturaufbau, Bedarfsanalysen, Maßnahmenplanungen und -umsetzungen unterschiedlich ablaufen. Deutlich werden auch die Wichtigkeit bestimmter Akteursgruppen für Bedarfsanalysen und Planungen sowie die zielgruppenspezifische Ausgestaltung hinsichtlich Zugangswegen, Maßnahmen und Themen.
Kommunale Gesundheitsförderung und Gesunde-Städte Ansatz
Authors: Dunker Ellen , Harms Fiona , Keil Mattis , Moser Janine , Skodra Julita , Wendt Lydia
Published: September 2024

Die fortschreitende Urbanisierung steigert die Relevanz kommunaler Gesundheitsförderung innerhalb städtischer Kontexte. Die Integration des Gesunde-Städte-Ansatzes in einer mehrdimensionalen Herangehensweise kann dabei eine Bereicherung sein. Hierfür werden in diesem Artikel ausgewählte Dimensionen aufgezeigt. Der Fokus liegt auf vulnerablen Bevölkerungsgruppen und der Integration von Umwelt- und Nachhaltigkeitsthemen, um umfassende Gesundheitsförderungsstrategien in Städten zu implementieren.
Preliminary considerations on the Scythian stone statue of 4
th
Century BC from the tumular necropolis from Peceneaga-Cerna, Tulcea County
Authors: Teleaga Emilian , Paraschiv Dorel , Iacob Mihaela , Posselt Martin
Published: September 2024

During a survey in Peceneaga, Tulcea county in Dobruja, several settlements and mounds (necropolises) from the 4th century were discovered. Topographic and geophysical surveys of the “Breazu tumulus” and its surroundings have revealed a partially destroyed tumular necropolis, where the barrow with the statue had a stone ring. The presence of a burial chamber below the embankment could not be proven; another burial structure was probably present. On the largest tumulus lay a Scythian stone statue from the 4th century BC. The bearded left-handed warrior was represented with a belt, a gorythos and protective armor on his right thigh. In this time the North Pontic Scythians under Ataias, migrating westward, became increasingly sedentary. A Scythian center of power may have emerged there.
Obsidian and Rock Crystal Artefacts as Prestige Finds Based on Raw Material Resources in Çine-Tepecik
Authors: Günel Sevinç
Published: September 2024

Within its location on the Çine plain, south of the Great Meander River, Çine-Tepecik is an important settlement inhabited continuously from the Chalcolithic to the end of the Bronze Age. Çine-Tepecik reflects an advanced lithic assemblage based on different raw material resources from the earliest period. Obsidian is among the earliest finds in Tepecik showing interregional trade based on the system of exchange, and is a resource that societies prioritized in their social lives and interregional communication since the beginning of the settlement process. Starting from the 4th millennium BCE until the end of the 2nd millennium BCE, obsidian was obtained from three main resources in the Aegean. These are Melos and Antiparos from the Cyclades; Giali from the Dodecanese and Göllü Dağ, Nenezi and Acıgöl from Central Anatolia. These connections, based on trade with the Aegean and Central Anatolia, reveal a skilled craft of obsidian tool production, as well as an obsidian and rock crystal vessel tradition in Tepecik during the Middle Bronze Age. The assemblage, which has a special meaning among prestige products, belongs to a craft activity that requires skill and experience, and is an indicator of socio-cultural richness. During the 2nd millennium BCE, in the wide geographical region covering Anatolia, Aegean and the Eastern Mediterranean obsidian and rock crystal vessels were among the special items produced for the royal or elite class. The stone vessel assemblage reflects the political and economic power of these regions, and also provides an understanding of interregional cultural and commercial connections. In the Çine-Tepecik Middle Bronze Age settlement, the obsidian and rock crystal vessel traditions followed a similar chronological development as the geography extending to Anatolia, the Aegean and the Eastern Mediterranean, and brings new finds to regional archaeology.
Europäische Sicherheit angesichts eines abrupten oder graduellen Rückgangs amerikanischer Sicherheitsgarantien
Authors: Krause Joachim
Published: September 2024

Es wird für die Europäer Zeit, sich darüber Gedanken zu machen wie man damit umgeht, dass in den USA die Bereitschaft deutlich sinkt, den Europäern Garantien für ihre Sicherheit zu geben. Diese Furcht wird besonders durch die Aussicht auf eine Wiederwahl von Donald Trump als Präsidenten genährt. Aber auch wenn Trump es nicht schaffen sollte, muss konstatiert werden, dass eine der beiden Systemparteien in den USA – die Republikaner – nicht mehr hinter den internationalen Engagements ihres Landes stehen. In diesem Artikel wird die innenpolitische Entwicklung in den USA daraufhin analysiert, wie sicher wir uns der amerikanischen Garantie in den kommenden Jahren noch sein können. Ausgehend von dieser Analyse werden unterschiedliche Szenarien vorgestellt, wie sich ein abrupter oder ein kontinuierlicher Rückgang der US-Sicherheitsgarantie vollziehen könnte. Dem folgt eine Erörterung der politischen Optionen, die die deutsche Politik einschlagen sollte – und zwar jetzt, bevor es zu spät ist. Der Verfasser plädiert dafür, die schon lange geforderte Umverteilung der militärischen Lasten zwischen den USA und den Europäern endlich anzugehen, im Rahmen einer kooperativen Auseinandersetzung mit den USA – solange diese noch möglich ist.
Kann sich Europa konventionell gegen eine militärische Bedrohung durch Russland behaupten?
Authors: Meyer zum Felde Rainer
Published: September 2024

Ob und wie könnte sich eine „NATO zu 31, ohne die USA“ gegen Russland (unterstützt durch China, Nordkorea und Iran) militärisch behaupten? Unter welchen Voraussetzungen könnten die Europäer im Rahmen einer fortbestehenden NATO eigenständig, das heißt notfalls auch ohne die USA, abschreckungs- und verteidigungsfähig werden? Diese Fragen stehen im Blickpunkt des Beitrags, in dem der Autor zu dem Schluss gelangt, dass dies grundsätzlich möglich ist, sofern die drei großen europäischen Mittelmächte Frankreich, Großbritannien und Deutschland in der NATO gemeinsam eine Ko-Führungsrolle übernehmen und komplementär als Rahmennationen zusammenwirken. Zugleich müssten alle Mitgliedstaaten ihre Verteidigungsbeiträge so steigern, dass sie auch ohne substanzielle Beteiligung der USA nicht nur in einem kurzen, hochintensiven Krieg durch „Responsiveness“ bei Aufmarsch und Anfangsoperationen die Oberhand behielten, sondern auch in einem langen Abnutzungskrieg, wie Russland ihn derzeit gegen die Ukraine führt, durchhaltefähig und letztlich Russland gegenüber überlegen wären. In drei Feldern blieben die USA allerdings unersetzbar: (1) als Garant einer glaubwürdigen Extended Nuclear Deterrence, (2) als Weltmacht mit dem einzigen, alle Fähigkeiten breit abbildenden, kohärenten nationalen Streitkräftedispositiv, an das sich bisher alle Verbündeten anlehnen; und (3) als Bereitsteller eines zusätzlichen amerikanischen Sicherheitsnetzes in Europa, das verteidigungspolitische Handlungsfähigkeit selbst dann noch ermöglicht, wenn in der konsensbasierten NATO kein Einvernehmen herzustellen sein sollte. Mit Blick auf die deutsche Verteidigungspolitik wird festgestellt, dass die Neuausrichtung der Bundeswehr auf Kriegstüchtigkeit und als Rückgrat der kollektiven Bündnisverteidigung im konventionellen Bereich in die richtige Richtung geht. Jedoch sind noch weitaus größere Anstrengungen insbesondere in der Rüstung und beim Verteidigungshaushalt erforderlich, um Putins Russland in Europa die Fortsetzung seines aggressiven Revisionismus zu verwehren. Dies gilt umso mehr, wenn die Perspektive einer NATO ohne die USA Realität würde, was es so weit wie möglich zu vermeiden gilt.
Mycobacterium Tuberculosis Persister Cell Formation after Pyrazinamide Exposure
Authors: Wang Shuqi , Sun Qing , Jiang Guanglu , Huang Hairong , Wang Guirong , Li Hao
Published: September 2024

Mycobacterium tuberculosis (Mtb) persister formation under antibiotic pressure is the main reason for long tuberculosis treatment and relapse. A key first-line antibiotic in TB treatment is pyrazinamide (PZA). Herein, we established an in vitro assay, the time to detection (TTD) assay, to identify persister formation after PZA exposure, by using the BD BACTEC™ MGIT™ 960 system. After treatment of Mtb H37Rv with PZA even at 20 times the MIC, not all bacteria were killed, and persisters formed in the culture. Our findings may explain the reasons for relapse after treatment. Moreover, the TTD assay developed herein may provide a valuable tool for research on persister formation under the pressure of various antibiotics.
Analysis of International Legal Frameworks on Maritime Boundary Delimitation: Bangladesh Case Study
Authors: Hasan Asm Mahmudul , Islam Md Syful , Chowdhury Md. Minhajul Abedin
Published: September 2024

This study scrutinized the historical evolution and legal complexities surrounding maritime boundary demarcation, examining the transition from traditional practices to contemporary international legal frameworks. Specifically, it has analyzed the impact of key legal doctrines on national interests, fairness, and cooperation, highlighting the transformation from equitable principles to normativity in maritime law. Central to the study were Bangladesh’s significant maritime boundary disputes with India and Myanmar, showcasing the challenges in applying delimitation principles and the intricate geopolitical and legal strategies employed to resolve these international conflicts. Meticulously analyzing crucial international cases, including the North Sea Continental Shelf case, has elucidated the practical application of theoretical principles. The research critically assessed the predictability of maritime delimitation, emphasizing the jurisprudence constant principle, the stability of the equidistance principle, and the influence of geographical and non-geographical factors. Concluding with actionable recommendations for past maritime boundary disputes and policymaking, it underscored the necessity for sustainable and equitable solutions under international law. Providing an in-depth examination of Bangladesh’s past maritime boundary issues and their global implications, the research has significantly contributed to academic discourse, offering practical guidance for policymakers and diplomats involved in maritime delimitation. The secondary research approach integrated historical analysis, legal review, and geopolitical assessment, relying on an extensive examination of international legal documents, treaties, court cases, scholarly literature, and expert commentary.
Liver electrical activity upon epinephrine action
Authors:   Bogomoletz Institute of Physiology of NAS of Ukraine, Kyiv, Ukraine, Tsapenko P.K. , Liashchenko T.P. ,   Educational and Scientific Center “Institute of Biology and Medicine” Taras Shevchenko National University of Kyiv, Ukraine, Vesel’sky S.P. ,   Chemical faculty of Taras Shevchenko National University of Kyiv, Ukraine
Published: September 2024

The electrical potential of the liver is an integrative indicator the activity of the cells in this organ. Here we tried to elucidate a link between liver functional state and its electrical activity. For that, electrical potential of the liver, the content of bile acid and blood glucose concentration were measured in control conditions and after intravenous epinephrine administration. Epinephrine at dose 0.2 µg/kg body weight caused short-term increase in blood glucose concentration and a decrease in hydroxylation ratio of bile acids. The administration also resulted in an increase in power spectral density (PSD) of liver electric potential in a frequency range of 1.6-2.5 Hz. In addition, a trend to increasing in PSD at 0.6-1.5 and 2.6-10 Hz ranges and decreasing in conjugation ratio of bile acids were shown. Correlation between liver electrical activity and blood glucose concentration observed in control conditions vanished upon epinephrine administration. In contrast, epinephrine administration potentiated correlation between liver electrical activity and content of bile acids. Thus, we conclude that the liver electrical activity could reflect its secretory processes.
SYNAPTIC PROCESSES OF GANGLION CELLS OF THE MAMMALIAN RETINA
Authors:   Institute of Physics and Technology of National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Kyiv, Ukraine, Sholudko O.I. , Purnyn H.E. ,   Bogomoletz Institute of Physiology of National Academy of Sciences of Ukrainе; Kyiv, Ukraine
Published: September 2024

To date, mammalian retinal ganglion cells have been studied quite well, and their diversity, development, and connections have been clarified. Fifty subtypes of these cells have already been identified, each of which optimally encodes unique visual capabilities and projects visual information to various targets in the brain, where it is decoded. Some types of ganglion cells express the photopigment melanopsin (Opn4), which makes them directly sensitive to light. In this review, we discuss the diversity of ganglion cells, their characteristics and differences, and describe the structure of retinal neurons and the synaptic processes that occur in them. Since the quality of human life is seriously affected by retinal diseases that can lead to vision loss, scientists are paying close attention to the causes of visual clarity and quality and the role of retinal ganglion cells in this process, conducting multidirectional research using new methods and different objects for study.
Transforming Agricultural Land into Residential Areas: A Socio-Economic Study in Tamiang Subdistrict, Mandailing Natal Regency
Authors: Nurhayati Nurhayati , Putra Ilham Mirzaya
Published: September 2024

The conversion of agricultural land into residential areas has become increasingly prevalent due to rapid population growth and the rising demand for housing development. This process presents various challenges, particularly for communities that rely on agriculture as their primary source of livelihood. This study aims to examine the socio-economic impacts of agricultural land conversion into residential areas in Tamiang Village, Kotanopan Subdistrict, Mandailing Natal Regency, North Sumatra Province. Using a qualitative method with data collected through observation, interviews, and literature review, the study found that land conversion in Tamiang Village has reduced the amount of agricultural land, altered land ownership patterns, and shifted livelihoods from agriculture to non-agricultural sectors. Factors such as population growth, economic motivations, inheritance considerations, and the strategic location of the land are the main drivers of this conversion. The findings of this study provide insights into the socio-economic dynamics in rural areas and offer considerations for formulating policies that balance residential development with agricultural sustainability.
Utilizing Social Media to Combat Sexual Violence: A Study of the Speak Up Movement on Instagram
Authors: Sulastri Rini , Walidah Marsha Qolby
Published: September 2024

This study aims to uncover the motivations and reasons behind victims' decisions to speak out on Instagram and evaluate the impact and responses to the speak-up movement against sexual violence. The research employs a qualitative method with data collection techniques including online observation, specifically through the social media platform Instagram, focusing on sexual violence survivors who courageously share their cases on this platform. The findings indicate that the speak-up movement on social media plays a crucial role in empowering victims, raising public awareness, and accelerating the enactment of the Sexual Violence Crime Law (UU TPKS). However, the study also identifies shortcomings in the responsiveness of authorities to the disclosed cases. The contribution of this research lies in providing new insights into Instagram's role in legal and social advocacy, as well as in the online observation methodology used to assess the impact of the speak-up movement and the direct experiences of survivors.
Postawy młodzieży szkolnej wobec homoseksualizmu i adopcji dzieci przez pary homoseksualne
Authors:   Wyższa Szkoła Nauk Społecznych w Lublinie, Mariański Janusz
Published: September 2024

In our considerations, we address two issues in the social narrative: homosexuality and adoption of children by homosexual couples. The basis for these diagnoses are the results of nationwide surveys and sociological research carried out in the two decades of the 21st century. Especially in the second decade of the 21st century, the views of school youth on bioethical issues were subject to progressive liberalization (secularization of morality). In nationwide research at the turn of 2022–2023, conducted among secondary school students, it was found that homosexual relationships were rated as permissible by 50.7% of the surveyed school youth, “it depends” – 12.0%, unacceptable – 24.4%, hard to say – 12.9%; adoption of children by homosexual couples (respectively) – 41.0%, 17.6%, 29.9%, 11.5%.
Endoskopowa dyssekcja podśluzówkowa zmiany odbytnicy – opis techniki
Authors:   Wojewódzki Szpital Zespolony w Elblągu, Drzewiecki Jacek , Jagielski Mateusz ,   Collegium Medicum Uniwersytetu Mikołaja Kopernika w Toruniu, Jackowski Marek ,   Collegium Medicum Uniwersytetu Mikołaja Kopernika w Toruniu
Published: September 2024

Colorectal cancer (CRC) is a common cause of morbidity and mortality worldwide. With the widespread availability of colonoscopy, it is possible to detect the disease at an early stage and implement effective treatment. Endoscopic submucosal dissection (ESD) is an advanced endoluminal technique for removing early gastrointestinal malignancies. This article presents the case of a patient with a large rectal polyp who underwent elective removal of the lesion with a diagnosis of early-stage colorectal cancer. The ESD technique is described in detail, along with the benefits and limitations of this treatment method. The use of minimally invasive endoscopic techniques includes shorter recovery time, preservation of bowel function and favorable oncologic outcomes.
Permanent Feulgen Staining Preparation without Mounting Medium Use
Authors:   Plant Physiology and Microbiology, Uzhgorod National University, Uzhgorod, Ukraine, Sharga Borys , Vakerych Mykhailo ,   Plant Physiology and Microbiology, Uzhgorod National University, Uzhgorod, Ukraine
Published: September 2024

Introduction. Feulgen staining is used in medical and biological studies when it is necessary to assess the level of DNA and its localization in cells. Some fixatives, mounting media and light can decrease the quality of preparations for microscopy by action on dye. Aim of the study. Our experiment aimed і) to develop the Feulgen procedure modification that excluded the use of harsh fixation agents and mounting media and іі) to evaluate visually the effect of periodical light exposure during teaching process within 6 years onto Feulgen stained preparations quality. Materials and methods. To escape the problem of stained specimens deterioration, we omitted the use of strong fixatives and mounting media, and avoided long light expositions on microscopic preparations. For permanent microscopic preparations production, the stained specimen covered with coverslip was properly air dried and then sealed by scotch tape on coverslip perimeter instead of mounting medium use. Preparations were kept wrapped in black paper and used for teaching of medical and biological students for eproximately 20 hours each year within a 6-years period. The microphotographs of the same site in tissue made at the start and end of this period were compared in quality visually. Results and discussion. Air-drying of stained specimens between the glass slide and coverslip without mounting medium followed by their sealing with scotch tape provided preparations of good quality. Their use for teaching of students within 6 years during eproximately 20 hours per year caused no fading or other visually detectable changes in stained tissue. This was proved from comparison of microphotographs made at the start and end of this period. Conclusion. Suggested variation of the Feulgen staining method can be applied for teaching of students in medicine and biology and, possibly, for routine analyses.
Strategies and business models for the development and promotion of hotel brands in the modern space of hospitality
Authors: Ruglova Lidia , Matolygina Natalia
Published: September 2024

In the modern world with its ever-accelerating pace of life, the preferences of consumers in the hospitality industry have significantly changed and continue to change. A modern person no longer needs just a safe roof over his head and elementary comfort; he wants some new emotions, new experiences, as a result of which his feelings of beauty, historical memory, awareness of himself as a member of a certain community, etc. are aggravated. Therefore, in the modern hospitality space, new strategies and business models for the development and promotion of hotel brands that meet the desires and interests of loyal consumers and contribute to attracting unreached segments of the hotel services market appear.
The article clarifies the concepts of "boutique hotel", "lifestyle hotel", "trophy hotel", "soft brand", provides a comparative analysis of the development of hotel brands within the framework of these strategies. According to the authors, the soft brand strategy is the most interesting and promising model for the development of the hotel business in the context of globalization and the active expansion of international and national hotel chains. According to the authors, in Russia soft brands can also have a good future.
The authors conclude that in conditions where guests become less loyal and more demanding, online travel agents (OTA) and aggregators are active, Airbnb and other manifestations of the sharing economy are growing in popularity, when technology giants such as Google also enter the market hospitality, hoteliers are forced to think in a new way, even if it means challenging the usual business model.
The article claims that in the modern hotel services market there is an interpenetration of components of various business models. Each of the participants in this market today does not limit itself to the boundaries of the previously selected (traditional) format of the hotel business, using a mix of their own well-established strategies and successful strategies of competitors, flexibly reacting even to the unconscious expectations of consumers, living in an era of economics of impressions that exist in many life spaces and speakers of many communities.
GÊNERO, PODER E SOFRIMENTO ÉTICO-POLÍTICO: CONSIDERAÇÕES SOBRE OS EFEITOS DA COLONIALIDADE DO GÊNERO NO BEM-VIVER DAS MULHERES
Authors: Mendes Ferreira Tatyane , Dias de Castro Ricardo
Published: September 2024

Este artigo propõe uma análise crítica feminista das relações de gênero,  dedicando-se a revelar como a colonialidade  perpetua a subalternidade  das mulheres e impacta o seu bem-viver no âmbito do sistema moderno/colonial de gênero. A discussão busca  problematizar como a cultura hegemônica estabelece relações de poder, na quais a subalternidade de algumas experiências se apresenta não apenas como uma condição individual, mas uma ferramenta de  desumanização que produz um sofrimento ético-político por meio de diversos sistemas de opressão. Utilizando uma abordagem feminista, interseccional e decolonial, a reflexão analisa os efeitos das violências enfrentadas, principalmente, pelas mulheres, que resultam em adoecimento psíquico e na formação de experiências subordinadas. Como proposta de resistência, o conceito de "Bem Viver" é tomado como um caminho possível para romper com as relações desiguais de poder e promover condições de vida dignas, propondo uma perspectiva de coletividade que favoreça a saúde mental e o bem-estar. O trabalho se fundamenta em revisão bibliográfica, incluindo autoras de relevância na discussão de gênero, colonialidade e saúde mental. Busca-se, por fim, contribuir para a construção de um  projeto de mundo em que mulheres possam ocupar espaços de poder, saber e viver.
Chuvas sem precedentes de abril a maio de 2024 no Sul do Brasil definem novo recorde
Authors: Collischonn Walter , Cabeleira Rafael , Ramalho Nicole , Ruhoff Anderson , Paiva Rodrigo , Fan Fernando , Wongchuig Sly , Breda João
Published: September 2024

Esta nota técnica apresenta uma análise comparativa entre as chuvas intensas ocorridas no Rio Grande do Sul, entre abril e maio de 2024, com os maiores eventos de chuva já observados no Brasil, entre 1961 e 2022. A análise comparativa foi realizada utilizando a técnica Depth Area Duration, que é adequada para a análise de chuvas intensas em grande escala espacial e temporal. Concluímos que as chuvas ocorridas no Rio Grande do Sul superaram amplamente os eventos de precipitação de larga escala mais intensos historicamente observados no Brasil, de 1961 a 2022, pelo menos para áreas de 2.000 a 100.000 km2 e durações de chuva de 3 a 14 dias. Em alguns casos (chuva de 3 dias em 10.000 km2), a precipitação de 2024 foi 47% maior que o recorde anterior de precipitação. Considerando que não podemos descartar que eventos semelhantes ocorram em nenhuma outra bacia, pelo menos no Sul do Brasil, pode ser necessário rever as regras originais de projeto e operação de estruturas hidráulicas de alto risco e sistemas de defesa contra inundações em toda a região Sul do país.
Considering the Validity and Reliability Testing of a Digital Punch Measuring Tool in Young Combat Athletes
Authors: Budijono Agung Prijo , Puspitaningayu Pradini , Kurniawan Wahyu Dwi , Firmansyah Awang , Ayubi Novadri , Arsapakdee Kritchapol , Putro Andika Bayu
Published: September 2024

Objectives. The application of technology in sports, including combat sports, is increasing rapidly. This study aimed to determine the validity and reliability of digital punch-measuring tools in young combat athletes.

Materials and methods. A total of 28 participants, consisting of 9 males (age 15.88 ± 1.6 years, height 162.56 ± 6.8 cm, weight 55.2 ± 10.2 kg, BMI 20.7 ± 2.5, PBF 14.57 ± 4.5 %) and 19 females (age 14.5 ± 1.5 years, height 154.3 ± 5.4 cm, weight 48.6 ± 8.5 kg, BMI 20.4 ± 3.2, PBF 27.4 ± 6.5 %) from the martial arts branch involved in the study and were included in data collection. The method used in this study was the Pearson Product-Moment Correlation Coefficient, analyzed using Minitab version 21. All research subjects engaged in a warm-up routine before performing three punches with both their right and left arms.   

Results. The findings of this study indicate positive validity (right 0.856, left 0.875) and reliability (right 0.8037, left 0.8209) in measuring both right and left punches.

Conclusions. Thus, digital punch measuring tools can be used for training to improve punches and as an initial test tool for implementing effective training programs and monitoring the development of combat athletes.
EFFECTIVENESS OF THE ADHEAR BONE CONDUCTION DEVICE FITTED BILATERALLY IN A CHILD WITH CONDUCTIVE HEARING LOSS: CASE STUDY
Authors: Cywka Katarzyna B. , Skarzynski Piotr H.
Published: September 2024

Introduction

Frequently, bone conduction hearing aids on a softband are not tolerated by children due to pressure on the head or visual esthetics. By way of contrast, a non-surgical hearing system – Adhear (Med-El, Innsbruck, Austria) – allows the sound processor to be attached using a noninvasive adhesive adapter. The objective of this study was to evaluate the effectiveness of the Adhear system and assess its subjective benefits in a child who had bilateral conductive hearing loss.

Case report

The Adhear system was tested in a 13-year-old child with bilateral conductive hearing loss. Pure tone audiometry and speech audiometry in quiet were performed without and then with a pair of devices placed bilaterally. Word recognition scores (WRS) at 50 and 65 dB SPL in quiet were measured using the Pruszewicz monosyllabic Polish word test. After 4 weeks, subjective hearing benefit and experience with the Adhear system was done using the APHAB (Abbreviated Profile of Hearing Aid Benefit) questionnaire.

Results

With Adhear, WRS at 50 dB SPL increased significantly from an unaided score of 10% to 80%. The result of free-field audiometry with Adhear on both sides indicated a hearing level within the normal range.

Conclusions

Adhear is an effective rehabilitation option for children with bilateral conductive hearing loss.
COCHLEAR HAIR CELL REGENERATION BASED ON STEM CELLS: A SYSTEMATIC REVIEW
Authors: Costa Vítor Bruno , Tomé David , Çirtlik Zeynep Yağmur , Öztürk Yaren , Clemêncio Filomena , Pitt-Byrne Theresa
Published: September 2024

Introduction

According to the World Health Organization (WHO), by 2050 at least 700 million people will need access to hearing care and hearing rehabilitation services. The search for cell or gene therapies has been intensifying, and stem cell therapy looks a promising candidate to support hearing regeneration and reduce these numbers. The aim of this study is to provide an overview of current advances in stem cellbased therapies for cochlear hair cell regeneration and the processes being developed for future applicability.

Material and methods

Identification and review of all articles in the databases PubMed, Web of Science, and PLoS One using the terms stem cell, auditory hair cell regeneration, and mammalian during February 2023 and following the PRISMA guidelines.

Results

50 articles were obtained, published between 2003 and 2022 and were systematically analyzed. The current research quantity is limited and further studies are needed, particularly in human tissue.

Conclusions

The simultaneous use of cell therapy and gene therapy may lead to more promising results. Moreover, advances in cochlear hair cell regeneration with stem cells suggest there is a realistic potential to make the technique a useful future therapy.
DO CHATBOTS PROVIDE RELIABLE INFORMATION ABOUT MOBILE APPS IN AUDIOLOGY?
Authors: Pastucha Małgorzata
Published: September 2024

Introduction

In light of the growing interest in utilizing AI for information retrieval, assessing the accuracy and reliability of tools such as chatbots is essential. This study aims to evaluate the efficacy of chatbots in providing accurate information about mobile applications (apps) in the field of audiology.

Material and methods

The responses of the Gemini and ChatGPT chatbots to eight open-ended questions posed in Polish and English were compared. Each answer was assessed for correctness.

Results

Gemini_ENG achieved the highest correctness with a score of 5 points (62.5%), while ChatGPT_PL scored 2 points (25%), and both Gemini_PL and ChatGPT_ENG scored 1 point (12.5%). Chatbots were most effective in recommending apps for older adults, with three of
the four chatbots providing accurate recommendations. However, they struggled when asked to recommend apps for non-English speakers, to describe apps, or to provide direct links, with none of them scoring points in these areas.

Conclusions

Chatbots are currently unreliable sources of information about audiology apps. Depending on the language, there is significant variability in response accuracy. A good example is that Gemini_ENG performed far better than Gemini_PL. A major issue for all of them was the frequent fabrication of data, including the creation of nonexistent app names and incorrect links.
A Study on Impact of Brand Equity on Purchase Intention o f Educational Toys in India
Authors:   Research Scholar, Savitribai Phule Pune University, Pune, Maharashtra, India, Saxena Neha , Kumar Atul
Published: September 2024

Objective: This research investigates the influence of brand equity on parents' purchase intentions for educational toys in India, with a focus on brand awareness, brand association, quality perception, and loyalty. Methods: A structured questionnaire with 20 closed-ended questions was delivered to parents of children aged 0 to 14 in Pune, Mumbai, Delhi, and Nagpur. The survey used a five-point Likert scale to assess brand equity perception and purchase intention. 156 complete and valid responses from the 200 parents surveyed were analyzed using SPSS. Regression analysis was performed to quantify the impact of brand equity components on purchase intention and Cronbach's alpha was 0.852, suggesting high reliability. Findings: The descriptive statistics revealed that consumers had intermediate brand knowledge and familiarity, as well as good evaluations of brand quality and attributes. Regression analysis showed that brand association (p = 0.036), quality (p < 0.001), and loyalty (p < 0.001) had a substantial influence on purchase intention, while brand awareness did not (p = 0.321). The model explained 60.1% of the variation in purchase intentions, with loyalty having the greatest influence. Novelty: This research provides insights into the Indian educational toy industry, stressing the role of brand equity in influencing purchase intentions. It provides useful information for toy producers and marketers in developing strategies to increase brand loyalty and drive sales. Keywords: ­ Educational Toys Brand Association, Brand Equity, Brand Loyalty, Quality, Brand Awareness Purchase Intention
Particleboard from biomass wastes: A review of production techniques, properties, and future trends
Authors:   Department of Mechanical Engineering, Landmark University, Omu-Aran, Nigeria, Ikubanni Peter P. , Adeleke Adekunle A. ,   Department of Mechanical Engineering, Nile University of Nigeria, Abuja, Nigeria, Adekanye Timothy A. ,   Department of Mechanical Engineering, Landmark University, Omu-Aran, Nigeria, Aladegboye Oluwasegun J. ,   Department of Civil Engineering, Landmark University, Omu-Aran, Nigeria, Agboola Olayinka O. ,   Department of Mechanical Engineering, Federal University of Technology, Akure, Nigeria, Ogunsemi Bamidele T. ,   Department of Mechanical Engineering, Landmark University, Omu-Aran, Nigeria
Published: September 2024

The availability of various biomass wastes and the stringent rules against deforestation have led to the increased utilization of waste biomass in particleboard development. These biomass wastes become environmental pollutants when not properly managed. Hence, their utilization in developing particleboards helps attain a sustainable environment, one of the United Nations Sustainable Development Goals. This study reviews some of the production techniques of particleboards from biomass wastes such as rice husk, sawdust, corn cob, sugarcane bagasse, oat hulls, coconut fibers, Areca nuts, rye straw, tomato stalk, hazelnuts, and castor husk. The properties (physical, mechanical, chemical, and thermal) and microstructures of the developed particleboards using a scanning electron microscope were critically reviewed. The density values were used to classify the particleboards into low-density, medium-density, and high-density particleboards. The particleboard's durability, storability, and dimensional stability are determined using the water absorption and thickness swelling values. The modulus of elasticity and modulus of rupture help to determine the quality and applicability of the particleboards following the appropriate standards. Lower thermal conductivity indicates better insulation properties. The challenges and prospects of particleboard production and utilization were stated. The utilization of waste biomass for particleboard production is sustainable to prevent environmental pollution and deforestation.
Effects of vacuum exposure on mechanical properties of thermoplastic materials
Authors: Dos Santos Tiago Rodrigues , Brandão Isla Kalleny Marques , Silva Sant'Ana Mateus , Alves Pedro Henrique dos Santos , Taborda Rana Mayeli Piêgas , Gessini Paolo , Barcelos Junior Manuel Dias Nascimento
Published: September 2024

The present paper proposes the study of the behavior of three thermoplastic materials: acrylonitrile butadiene styrene (ABS), poly(lactic acid) (PLA), and polyethylene glycol terephthalate (PETG), processed by additive manufacturing type fused deposition modelling (FDM) when exposed to low vacuum. The experiment was composed of three moments consisting of tridimensional modeling and manufacturing of the specimens, drying process and vacuum exposure for 24 hours, according to American Society for Testing and Materials (ASTM) D6653/D6653M standards, and bending test for the determination of mechanical properties, based on ASTM D790 standards. The vacuum chamber tests exposed oscillations in the pressure indicating gases releasing from the specimen, but none of the samples showed visible deformations. Subjecting the materials exposed to low vacuum to bending tests and comparing them to the unexposed material, we observed a significant increase in the calculated modulus of elasticity and a change in the slope of graphic force versus deflection in all materials. This behavior demonstrates that it is possible to submit polymeric materials to vacuum, and low vacuum exposure can be a treatment for thermoplastic materials. In the future, a study using a spectrometer will be necessary to verify which gases are present during pressure oscillation in the chamber, thus making it possible to understand which factor has increased the mechanical properties of the materials. In sequence, experiments will be necessary to validate the vacuum exposure as a form of treatment of materials and to verify the possibility of applying thermoplastics commonly used in additive manufacturing for low-impact space applications.
Study of aluminum nitride films deposited on silicon for fabrication of MEMs devices
Authors: SantAna Péricles Lopes , Silva Sobrinho Argemiro Soares da , Faria Julio Cezar , Leite Douglas Marcel Gonçalves , Pereira André Luis de Jesus , Gomes Newton Adriano dos Santos
Published: September 2024

In this work, aluminum nitride (AlN) thin films deposited on the silicon (100) by RF magnetron-sputtering were analyzed. Nitrogen and argon plasmas were used in a vacuum system technique, being possible to obtain films oriented to the (oo2) crystallographic direction analyzed by X-ray diffraction (XRD) technique. Scanning electronic microscopy (SEM) was used to obtain the chemical composition (% at.) of AlN thin films. SEM analyses were accomplished to verify the images of the AlN films. Raman spectroscopy was used to obtain the Raman displacement as a function of the light intensity of the beam incident on the AlN films. Therefore, it was possible to reach the peaks of laser radiation absorption (λ = 514 nm) during Raman scattering. Ellipsometry was required to obtain: the roughness (Rz), optical gap (E04), and films thickness. Optical properties of the films depend on the temperature during the deposition. COMSOL software was required to simulate the performance of MEMS device, operating in the match circuit on a few ten of MHz resonance frequency.
Compositional library of β Ti-Nb-Zr alloy coatings applied to biomedical prostheses
Authors: De Castro Ana Luiza , Leal d’Azevedo Lemos Lucas , Luiz Gobbi Angelo , Cabral Gontijo Leonardo , Ramos Moreira Afonso Conrado , Roberto Mastelaro Valmor , Augusto de Paula Nascente Pedro
Published: September 2024

The β Ti-based alloys have attracted considerable interest as biomedical materials due to their unique characteristics, such as excellent biocompatibility, low elastic modulus, low density, and corrosion and wear resistances in biological environment. Ti, Nb, and Zr are non-toxic and non-allergenic biocompatible metals, and the addition of Nb and Zr to Ti favors the mechanical compatibility between the alloy and the bone. The addition of Nb to Ti yields to the stabilization of the β phase, and the addition of Zr to the Ti-Nb system increases the β stabilizing effect. However, the ideal amounts of the constituent elements in the Ti-Nb-Zr ternary system are uncertain. Combinatorial strategies allow for the production and characterization of many alloys simultaneously, and magnetron sputtering has been used to generate compositional libraries for ternary thin films and coatings. In this study, Ti-Nb-Zr ternary alloy coatings were deposited by magnetron sputtering on a Si (100) wafer substrate. The Ti, Nb, and Zr targets were positioned in a triangular configuration below the Si substrate. A composition gradient was formed over all the substrate area. Chemical, structural, and morphological analyses were performed by energy dispersive spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and atomic force microscopy.
Using Hardware Events to Detect Side-Channel Attacks
Authors:   Federal State Institution ", Kostiukhin K. A. ,   Scientific Research Institute for System Analysis of the Russian Academy of Sciences",   , Moscow, 117218, Russian Federation, Samborskii S. V. ,   Federal State Institution "Scientific Research Institute for System Analysis of the Russian Academy of Sciences", Moscow, 117218, Russian Federation
Published: September 2024

The article discusses the monitoring system being developed by authors for the detection of Side-Channel Attacks, SCA. The theoretical justification of the chosen method of detecting SCA attacks is given: analysis of hardware events of the target system. The architecture of the monitoring system is described, including low-level data collection processes and an expert system that analyzes the collected data. The results of the proof-of-concept on various classes of SCA-attacks are presented. The paper considers a class of attacks on side-channels that use the processor cache to obtain secret information. A method of countering attacks of this class based on the use of a hardware event mechanism is proposed. As a result of the analysis of existing hardware events, predicates have been built for the Intel architecture, allowing one to identify the suspicious behavior of programs in the Linux OS environment. To test the proposed method, a prototype monitoring system was implemented that successfully coped with the detection of simulated SCA-attacks. The advantages and disadvantages of this method are considered, and the direction of further research is indicated.