bluuebunny/crossref_metadata_2025 huggingface dataset:
Formação territorial, economia e projetos de integração regional da Pan-Amazônia
Authors: Silva Irenildo Costa da , Rodríguez Nohra León
Published: August 2024

O objetivo que envolve este artigo está centrado no esforço analítico para contextualizar a formação socioespacial e a economia da Pan-Amazônia, assim como os processos de integração regional, algo que podemos dizer estar muito relacionado e associado ao desenvolvimento e implantação dos megaprojetos na região. O gigantismo da Pan-Amazônia é algo que possibilita vantagens e desvantagens. Por um lado, o culto ao mítico, ao lendário, seus encantos e belezas despertam curiosidades e desejos de conhecê-la e senti-la de perto; por outro lado, há as ambições por usufruir dos recursos presentes na região. O artigo se encontra dividido em três partes, para além da introdução e das considerações finais. Na primeira, a análise está centrada no processo de formação histórica da região, o que se deu por meio da disputa dos interesses internacionais nos recursos presentes nos ecossistemas amazônicos. Na segunda, é discutida a economia da região, a qual se configura em torno das atividades extrativistas, o que tem servido apenas para o enriquecimento dos grandes países centrais que as exploram. Por fim, na terceira parte são discutidas as iniciativas em torno das articulações de cooperação para o melhor usufruto da região e seus potenciais.
La Relevancia geoestratégica de la Amazonía Sudamericana para los proyectos de poder de Estados Unidos y China (2001-2016)
Authors: Rodrigues Bernardo Salgado
Published: August 2024

La Amazonía sudamericana tiene cada vez más implicaciones globales y diversos intereses en el sistema interestatal, principalmente a través de los proyectos de poder de estados nacionales, como Estados Unidos y China. Partiendo de la prerrogativa del espacio amazónico como frontera de expansión del sistema capitalista, se crea una batalla de gigantes en el corazón de América del Sur del siglo XXI. Así, el objetivo es comprender las correlaciones de poder en la región, analizadas desde la perspectiva de la guerra híbrida estadounidense y la geoeconomía china híbrida en la Amazonía sudamericana. Bajo una perspectiva realista y utilizando una metodología empírico-deductiva basada en datos cuantitativos y cualitativos, se busca apoyar teórica y científicamente dichos movimientos, dando lugar a posiciones contrahegemónicas en el contexto específico de las condiciones materiales amazónicas.
Texto para Discussão 2990
Authors: Carvalho Carlos Henrique Ribeiro de
Published: August 2024

Este Texto para Discussão apresenta um panorama sobre a concessão de auxílio-transporte para os trabalhadores chefes de família brasileiros com base nos dados da Pesquisa de Orçamentos Familiares de 2018-2019 do Instituto Brasileiro de Geografia e Estatística (POF/IBGE). Mostrou-se que as pessoas dos estratos sociais mais baixos, com menos escolaridade e renda, são justamente as que menos recebem o auxílio. No entanto, observou-se que a principal política de auxílio-transporte no Brasil – o vale-transporte – é bastante importante para os trabalhadores de baixa renda, uma vez que aumenta o seu alcance territorial no trabalho e, consequentemente, as possibilidades de emprego, além de melhorar as condições de mobilidade e de gastos das famílias. O desafio é ampliar essa política que inclui apenas os trabalhadores formais para atingir também os desempregados e trabalhadores informais. O texto ao final recomenda a adoção de políticas públicas complementares ao vale-transporte a fim de ampliar esse importante benefício social.
Using Machine Learning Models to Detect the Increasing Threats of Financial Fraud in the Cyberspace
Authors: Yaw Agyeman Atta , Gbli Tetteh Samuel
Published: August 2024

In the dynamic landscape of the financial sector, the escalating menace of financial fraud presents pervasive implications for businesses and consumers alike. Particularly, detecting credit card fraud in real- time transactions has become a pivotal concern within the financial industry. This abstract delves into the critical role of data mining in addressing the complexities of credit card fraud detection, shedding light on the multifaceted challenges that confront this domain. The realm of financial business is increasingly besieged by the spectre of financial fraud, necessitating robust measures to combat its detrimental effects. As the sophistication and prevalence of fraudulent activities continue to evolve, the imperative of deploying effective strategies for fraud detection becomes more pronounced. Applying data mining techniques in this context is paramount in identifying and mitigating credit card fraud. Leveraging advanced data mining methodologies is essential for scrutinising live transactions and discerning anomalous patterns indicative of fraudulent behaviour. Credit card fraud detection poses formidable challenges, primarily attributable to two compelling factors. Firstly, the inherent dynamism of normal and fraudulent behavioural profiles engenders a perpetual need for adaptive and responsive detection mechanisms. Secondly, the highly imbalanced nature of credit card fraud data sets further complicates accurately identifying fraudulent activities, necessitating nuanced approaches to discern anomalies amidst voluminous transactional data effectively. In light of the foregoing, this abstract underscore the criticality of data mining in addressing the intricate landscape of credit card fraud detection, emphasising the need for agile and sophisticated methodologies to navigate the evolving nature of fraudulent behaviours and the skewed distribution of fraud-related data sets. By comprehensively elucidating these challenges, this abstract provides a foundational understanding of the nuanced complexities inherent in combatting financial fraud through the lens of data mining.
An Inquiry into Experiences of Supervisors and Supervisees in Conducting Research Supervision in Higher Education Institutions in Eswatini
Authors: Mpofu Phumuzani , Madlela Benkosi
Published: August 2024

The importance of research in institutions of higher education stretches beyond enabling the student to gain a qualification. Students’ research outputs should contribute to the body of knowledge, hence the need for quality research supervision in institutions. This study thus explored the experiences of supervisors and supervisees in research supervision. An interpretivist research paradigm and a qualitative research approach were used. Data was collected from purposively sampled participants using interviews and focus group discussions. Findings revealed that the supervisor’s role is to guide and support the student step by step throughout the whole research process beginning from problem identification up to data collection and compilation of the final research report. The student’s role is to take full responsibility for their own research from start to finish. Findings showed that supervisors were frustrated by students who lacked basic research knowledge and students who plagiarised previous studies. Students were frustrated by incompetent supervisors who abused their powers and forced them to change topics to accommodate their shortcomings, delayed with feedback and unconstructive feedback. The study recommended that institutions should engage qualified and competent research supervisors, train supervisors and supervisees and review their research policies and incorporate modern research trends, support students with resources to conduct research and publish their research outputs, and supervisors should embrace modern technology in research supervision.

Keywords: Experiences, Supervisors, Supervisees, Research
El costo económico de la delincuencia: Chile 2013-2022
Authors: Balmaceda Marcos , Hernández Leonardo , Alfaro Jorge
Published: August 2024

Este artículo cuantifica el costo económico de la delincuencia en Chile durante la última década. Siguiendo la literatura categorizamos las pérdidas económicas debidas a actividades delictivas en: (a) costos de anticipación, (b) costos de consecuencia y (c) costos de respuesta. Consideramos varios tipos de costos relacionados con el crimen, como lo son los gastos en seguridad, en seguros y en tratamientos médicos de las víctimas; el ingreso laboral perdido de víctimas y reclusos; y el costo de las muertes debidas al crimen, entre otros. Basándonos en datos de diversas fuentes, como registros tributarios, presupuestos gubernamentales e informes oficiales de crímenes, aplicamos un método contable para cuantificar las pérdidas directas causadas por la delincuencia. Así, reportamos una cota inferior para los costos económicos del crimen en Chile de 2,1% del PIB en 2022, 46% superior al costo (como % del PIB) estimado para 2013 (90% superior medido en dólares de igual poder adquisitivo). También encontramos que en los últimos años ha habido un aumento significativo en los costos de anticipación, causado principalmente por el aumento en el gasto en seguridad incurrido por el sector privado. Los resultados también muestran un crecimiento en los costos asociados a los homicidios y los robos de vehículos, este último también asumido por el sector privado. El estudio muestra que el costo del crimen como porcentaje del PIB ha aumentado sostenidamente a lo largo de los años, destacando la necesidad de una reevaluación de las políticas de seguridad centradas en estrategias de prevención y respuesta más efectivas. Esta investigación contribuye a comprender el impacto económico del crimen en Chile y aboga por políticas que aborden los desafíos en constante evolución planteados por las actividades delictivas.
La Vie finit par reprendre le dessus : l’abject kristévien dans
L’Ombre d’Imana
de Véronique Tadjo
Authors: FERRARI NICOLE
Published: August 2024

In her novel on the 1994 genocide,
The Shadow of Imana: Travels in the Hearth of Rwanda
, Véronique Tadjo visits memorial sites in Rwanda after the genocide against the Tutsis. Despite the enormous suffering, the author and certain victims succeed in understanding the mechanisms of hatred while, at the same time, believing in life at the end of the book. How is this conclusion possible given the scale of pain felt by the victims, the author and intellectual witnesses? The answer is in the leitmotif of Kristévian abjection that is interwoven throughout the text. In her essay
Powers of Horror,
Julia Kristeva theorizes how people can continue to live despite facing the abyss of death. By working through the process of abjection, victims and intellectual witnesses can participate in the tragedy in Rwanda and then let life begin anew, which makes the theory of abjection one of the stakes in Tadjo’s work.
Can stocking with advanced European grayling fry strengthen its populations in the wild?
Authors: Avramović Mladen , Turek Jan , Lepič Pavel , Szmyt Mariusz , Pastejřík Jan , Randák Tomáš
Published: August 2024

European grayling, Thymallus thymallus (Linnaeus, 1758) (Actinopterygii: Salmoniformes: Salmonidae), represents one of the highly attractive riverine fishing species in Europe. Its populations have declined in the Czech Republic due to various adverse factors. Current approaches for strengthening these populations based on restocking with artificially reared 1+ or 2+ old individuals have proven to be ineffective. This study focuses on the possibilities of supporting or restoring these populations by reintroducing two-month-old, fast-growing fry reared in ponds. In June 2021, 5400 advanced fry marked with Alizarin Red (ARS) were introduced into three free-flowing South Bohemian streams. The recapture rates and biometric data (length and weight) of stocked grayling were assessed at the release sites as well as further downstream. The first electrofishing monitoring was conducted at the end of the growing season (October) and after their first winter (March). Water temperature and flow rate at the stocking sites were monitored throughout the growing season. The substantial number of recaptured individuals across all monitored sites suggests that the fry successfully adapted to their new habitat and significantly contributed to the composition of local fish communities. Downstream movement of stocked fry correlated with lower water temperatures and higher flows. Our findings demonstrate that some introduced individuals successfully overwintered at all three reintroduction sites. Marking with ARS has proven to be a very effective non-invasive method of group marking juvenile fish and is suitable for monitoring stocking programs. The production and stocking of fast-growing advanced fry of European grayling is thus a promising strategy for revitalizing and strengthening the populations of this threatened fish in running waters.
Exploring Eco-Innovation Barriers to the Sustainability Transition in Cold Chain E-Fulfilment Systems
Authors: Li Yanlin , Tsang Y. P. , Wu C. H. , Lee C. K. M.
Published: August 2024

The growing demand for cold chain e-fulfilment services has created challenges for implementing low-carbon practices due to the use of extensive energy and insulation materials required to maintain the desired service quality throughout the supply chain. This study applies the Fuzzy Best Worst Method with group decision-making capabilities to identify and prioritise eco-innovation barriers in the context of cold chain e-fulfilment. Through analysing expert opinions, it is found that (i) integration with legacy systems, (ii) high implementation costs, (iii) limited stakeholder engagement and communication, and (iv) limited awareness and education on eco-innovation are the most pressing eco-innovation barriers. Subsequently, insights and guidelines to integrate eco-innovation initiatives in cold chain e-commerce are suggested, highlighting the role of social eco-innovation. All in all, this research contributes to the next-generation sustainable development of cold chain e-fulfilment, aiming to balance environmental, social, and economic sustainability.
ANÁLISE DE PÓS-FLAMBAGEM EM PERFIS ALVEOLARES COM FLANGES TUBULARES CARREGADOS AXIALMENTE
Authors: Rossato Leonardo André , Martins Carlos Humberto , Rossi Alexandre
Published: August 2024

Este estudo investiga o comportamento estrutural de perfis metálicos alveolares com flanges tubulares sujeitos a carga axial. A análise visa avaliar a capacidade de carga e possíveis instabilidades desses perfis. Utilizando métodos numéricos no software ABAQUS, foram examinados 18 perfis com diversas configurações geométricas, considerando também diferentes classes de resistência do aço. Os resultados mostram que o aumento na espessura do perfil resulta em um ganho de capacidade resistente, em média, de 76,6%. Perfis mais esbeltos exibiram instabilidade global, enquanto aqueles com menor esbeltez e em torno do eixo de maior inércia demonstram instabilidades locais. Além disso, o aumento na resistência mecânica do aço contribui para um ganho, em média, de 21% na resistência última do perfil.
COMPARAÇÃO ENTRE OS MÉTODOS NORMATIVOS PARA O CÁLCULO DA RESISTÊNCIA DE PILARES MISTOS DE SEÇÃO CIRCULAR PREENCHIDOS COM CONCRETO
Authors: Bolandim Emerson Alexandro , Silva Nicoletti Renato , Amorim Guilherme Augusto Nascimento , Souza Alex Sander Clemente de
Published: August 2024

Nos pilares mistos de seção tubular preenchidos com concreto, conhecidos como “concrete filled steel tubes” (CFSTs), o efeito de confinamento passivo fornecido pelo tubo de aço para o núcleo de concreto tem elevada importância. Visto isso, o presente trabalho buscou comparar, por meio de análises numéricas, a capacidade resistente à compressão de modelos numéricos de pilares mistos de seção tubular, preenchidos com concreto, com a previsão das principais normas técnicas existentes. Para tanto, inicialmente foi construído e verificado um modelo numérico e, posteriormente, conduziu-se uma análise paramétrica com 10 CFSTs, variando o diâmetro e a espessura do perfil circular, a taxa de aço e o comprimento destravado. Verificou-se que, conforme a relação D/t dos CFSTs aumentou, menor foi a divergência percentual entre as resistências dos modelos analíticos e a do modelo numérico, o que se atribui à redução do efeito de confinamento ocasionada pelo aumento da relação D/t. Algumas normas apresentaram previsões de capacidade resistente superiores à do modelo numérico, porém a maior divergência foi de apenas 7%.
POTENCIALIDADE DE APLICAÇÃO DE UHPC EM ESTRUTURAS MISTAS PARA GERAÇÃO DE ENERGIA EÓLICA
Authors: Lima Paulo Roberto Lopes , Amiri Mojtaba Maali , Shadman Milad , Junkaic Feng , Estefen Segen Farid , Toledo Filho Romildo Dias
Published: August 2024

O grande crescimento da demanda por energia renovável nos últimos anos tem representado um desafio à engenharia estrutural pela necessidade de estruturas maiores e mais esbeltas para aumento da capacidade de geração. Demandas de mercado tem resultado na substituição de torres e plataformas em aço por estruturas de concreto armado, que podem incorporar novos materiais avançados. Neste trabalho é apresentada uma revisão bibliográfica sobre o uso de concreto de ultra alta performance em estrutura mistas para sistemas onshore e offshore de geração de energia eólica. Incialmente são apresentadas as prescrições normativas específicas para uso do concreto armado em plataforma offshore. As propriedades do concreto de ultra alta performance (UHPC) bem como as aplicações em estruturas para geração de energia são discutidas. Os resultados indicam que é possível reduzir a armadura passiva de estruturas de concreto armado com o uso de materiais cimentícios avançados e que há a possiblidade de aplicações desses materiais em elementos mistos aço-concreto.
ANÁLISE NUMÉRICA DO COMPORTAMENTO À FLEXÃO DE PISOS MISTOS DE PEQUENA ALTURA COM INOVADORA CONEXÃO DE CISALHAMENTO
Authors: Mascarenhas Borghi Tainá , Marques Bruno B. , Oliveira Fernanda G. B. S. , De Nardin Silvana , El Debs Ana Lúcia H. C.
Published: August 2024

Resumo: Com as estruturas mistas já firmadas mundialmente, abre-se espaço para elementos estruturais mistos inovadores, como o piso misto de pequena altura, também conhecido como slim floor. Esse sistema é composto por vigas de aço e lajes de concreto ou mistas apoiadas na mesa inferior dos perfis, implicando na redução da altura total do piso. Foi realizado um estudo numérico de duas tipologias de slim floor compostas por perfis de aço com aberturas na alma, a Shallow Cellular Composite Floor Beam (SCCFB) e a Composite Slim-Floor Beam (CoSFB), que possibilitam a utilização da conexão de cisalhamento composta por barras de aço e concreto moldado in loco passando através das aberturas do perfil. Assim, objetivou-se avaliar a contribuição dessa conexão de cisalhamento no comportamento à flexão, concluindo que a presença de barras aumenta a capacidade resistente e que quanto maior a abertura maior essa capacidade.
AVALIAÇÃO DAS PROPRIEDADES DO CONCRETO CELULAR ESPUMOSO PRODUZIDO COM SUBSTITUIÇÃO PARCIAL DO CIMENTO POR CINZAS DE CASCA DE ARROZ
Authors: Abdala Júlia Costa , Barroso Mourão André , Paula Júnia Nunes de , Ramos Lucas Thadeu da Silva , Morais Ivan Batista
Published: August 2024

O cimento Portland é, em massa, o produto manufaturado mais consumido no planeta e sua indústria é responsável por aproximadamente 7% do volume das emissões mundiais de CO2 correspondentes à ação humana. A fabricação do principal componente do cimento, o clínquer, exige grande consumo de energia e queima de combustível, o que gera alta emissão de poluentes. O uso de materiais cimentícios suplementares (MCS) como substituição parcial ao cimento é uma alternativa eficaz para a redução do consumo do cimento. Cinzas residuais da atividade agrícola são boas alternativas de MCS e, dentre elas, há a cinza de casca de arroz (CCA). Logo, a presente pesquisa estudou os efeitos da introdução da CCA sobre as propriedades do concreto celular espumoso. Usou-se três dosagens de concreto: REF, CCA-10 e CCA-20, com 0%, 10% e 20% de substituição do cimento pela CCA, respectivamente, em massa. O desempenho mecânico após 7 dias de cura indica que os concretos com CCA podem ser usados para fins não estruturais, ao tempo que o desempenho após 21 dias indica que o traço CCA-10 enquadra-se como concreto leve estrutural. A adição da CCA reduziu o índice de absorção de água do concreto.
ANÁLISE DE MODELOS DE DIMENSIONAMENTO PARA PILARES MISTOS PARCIALMENTE REVESTIDOS
Authors: Bianchi Marques Bruno , Batista Santos Oliveira Fernanda Gabriella , Mascarenhas Borghi Tainá , Fabiana Pereira Milani Margot , Homce de Cresce El Debs Ana Lúcia
Published: August 2024

Novas propostas para a produção de pilares mistos têm sido objeto de pesquisas recentes, como o uso de agregados reciclados e de fibras de aço no concreto. Ainda não previstas nas normas vigentes, elas necessitam de validação diante dos modelos de dimensionamento. Este trabalho comparou os resultados experimentais de pilares mistos parcialmente revestidos com concreto reforçado com fibras de aço e com concreto de agregados reciclados às resistências de acordo com a ABNT NBR 8800 (2008) e o EN-1994-1-1 (2004). Os modelos normativos previram satisfatoriamente a resistência dos exemplares, com maiores discrepâncias para os pilares esbeltos. Foi verificada a relevância da consideração da excentricidade acidental e dos efeitos de segunda ordem para obtenção de resultados representativos.
INVESTIGAÇÃO EXPERIMENTAL DA RESPOSTA DINÂMICA DE VIGAS CAIXÃO DE AÇO-CONCRETO PARA DIFERENTES CONFIGURAÇÕES DE FABRICAÇÃO
Authors: Magalhaes Max de Castro , Caldas Rodrigo Barreto
Published: August 2024

Esse trabalho apresenta e compara resultados obtidos através de análise experimental e método analítico acerca da resposta dinâmica (frequências naturais) de vigas caixão de aço retangulares de aço preenchidas com concreto com diferentes configurações de fabricação. Seis diferentes configurações de vigas mistas foram estudadas: viga tubular de aço sem preenchimento de concreto; viga tubular de aço preenchida com concreto; viga tubular de aço preenchida com concreto com tratamento da superfície de contato aço-concreto para minimizar o atrito; vigas tubular de aço preenchida com concreto com barras de armadura em uma e duas camadas no lado tracionado; e, viga tubular de aço preenchida com concreto e com laje colaborante sobreposta. Os resultados, em termos da ‘função de resposta em frequência’(FRF), mostraram uma boa correlação entre as frequências fundamentais obtidas por meio dos procedimentos experimental e analítico para uma das configurações estudadas. Foi demonstrado também que há uma diferença mais significativa na resposta dinâmica da viga tubular sem preenchimento de concreto em comparação às outras configurações, conforme previsto. As variações de configuração das demais vigas geraram pouca influência sobre suas respostas dinâmicas.
Analysis of the Use of Electric Energy in a Single Phase Induction Motor to Drive a Bio-Pellet Machine from Empty Palm Bunch
Authors: Ediwan Ediwan , Hasibuan Arnawan , Bakar Abu , Daud Muhammad , Setiawan Adi , Safitri Nelly
Published: August 2024

This research focuses on regulating the speed of a single-phase induction motor in making biopellets from empty palm oil bunches. Bio-pellets are a renewable energy fuel source. Power consumption in induction motors at constant speed is greater and this can cause waste of electrical energy. To overcome this problem, we need a way to save electrical energy, especially in operating electric motors. One effort to save electrical energy when operating an induction motor is to use an inverter. From the research results, it is known that the power of an induction motor operated without using an inverter is 0.610 kW with electrical energy of 0.603 kWh and using an inverter is 0.376 kW with electrical energy of 0.396 kWh. The electrical energy use of a single phase induction motor using an inverter is 0.207 kWh lower than without an inverter with electrical energy savings of 34.32% or Rp. 8,395.92 in one month.
Analysis of the Temperature Drop of Hot Mixed Asphalt during the Trip to the Overlay Site (Case Study: Keude Linteung–Meulaboh)
Authors: Veranita Veranita , Zulyaden Zulyaden , Supardi Joli , Hendra Hendra
Published: August 2024

Hot mix asphalt consists of a mixture of coarse aggregate and fine aggregate with asphalt binder that has certain requirements and is heated to a certain temperature. In the process of delivering hot mix asphalt, there is a temperature drop of hot mix asphalt when it arrives at the overlay site. The purpose of this study was to determine the characteristics of the temperature drop on hot mix asphalt during the trip to the overlay site. The research method is experimental method will be used on a hot mix asphalt transport truck. The temperature measurement was carried out 5 minutes after the asphalt was poured into the truck and while on the way to the overlay site with a measurement time span of 0, 30, 60, 90 and 120 minutes. The results of the study showed that a very significant drop in the temperature of hot mix asphalt occurred in transport trucks 2 at points T4 and T6, namely the initial temperature of each 150°C to the final temperature of 139°C. The transport of truck 1 the temperature drop of hot mix asphalt that occurs is 10 °C the largest and on transport truck 2 the maximum temperature decrease for hot mix asphalt that occurs is 11 °C. Before shipping the hot mix asphalt, the weather should be considered in order to minimize temperature drop of hot mix asphalt that occurs.
Neglected dipterans in stream studies
Authors: Boóz Bernadett , Móra Arnold , Ficsór Márk , Pařil Petr , Acosta Raúl , Bartalovics Bea , Datry Thibault , Fernández-Calero José Maria , Forcellini Maxence , Miliša Marko , Mykrä Heikki , Pernecker Bálint , Polášková Vendula , Polović Luka , Snåre Henna , Csabai Zoltán
Published: August 2024

True flies comprise approximately one-tenth of all animal species on Earth, yet despite their prevalence and ecological significance in freshwater ecosystems, members of the insect order Diptera are frequently neglected in stream studies. This absence or inconsistency regarding Diptera in literature and taxonomic lists may leave readers with a sense of discrepancy. To illustrate this underrepresentation in quantitative ecological investigations, we conducted a targeted literature-based meta-analysis, assessing the average level of Diptera identification and the reported number of families. These findings were compared to data from 639 quantitative samples collected across six European ecoregions (Mediterranean, Alpine, Continental, Balkanic, Pannonian, Boreal) during six, bimonthly repeated sampling campaigns in 2021 and 2022. Our analysis revealed that, compared to other macroinvertebrate groups, Diptera were typically identified at a less detailed level, often only to the family level, thereby failing to fully represent Diptera diversity, especially regarding rare, less abundant families. In our review of literature studies, we identified references to a total of 40 families. Notably, Chironomidae, Ceratopogonidae, and Simuliidae were consistently represented across the majority of studies, whereas nearly half of the families were exclusively mentioned in one or two studies. No significant differences were found in the number of families across continents or various habitat types. In our case studies the number of families was significantly higher than in European stream studies, suggesting that several rare families occasionally completely neglected during sampling, sample sorting or identification. We explored potential connections among Diptera assemblages through correlation and coexistence analyses. Our results highlighted the significant influence of the more frequent Chironomidae, Ceratopogonidae, and Simuliidae on the presence or absence of other families. While correlations between Diptera families were identified, attempts to develop a predictive model for the diversity and occurrence of minor families based on the abundance of major ones proved inconclusive. For future quantitative studies on macroinvertebrate communities, it is essential to recognize, identify and incorporate less abundant Diptera families, even on family level, or in higher taxonomic resolution, if possible,  to enhance understanding and prevent the loss of information concerning this compositionally and functionally uniquely diverse insect group, which represent a significant part of the entire community, and gain a better understanding on their interactions with other aquatic groups.
Peripheral platelet count is a diagnostic marker for predicting the risk of rapid ejaculation: findings from a pilot study in rats
Authors: Huang Yuan-Yuan , Ye Nan , Peng Dang-Wei , Li Guang-Yuan , Zhang Xian-Sheng
Published: August 2024

Parameters of peripheral blood cell have been shown as the potential predictors of erectile dysfunction (ED). To investigate the clinical significance of hematological parameters for predicting the risk of rapid ejaculation, we established a rat copulatory model on the basis of ejaculation distribution theory. Blood samples from different ejaculatory groups were collected for peripheral blood cell counts and serum serotonin (5-HT) tests. Meanwhile, the relationship between hematological parameters and ejaculatory behaviors was assessed. Final analysis included 11 rapid ejaculators, 10 normal ejaculators, and 10 sluggish ejaculators whose complete data were available. The platelet (PLT) count in rapid ejaculators was significantly lower than that in normal and sluggish ejaculators, whereas the platelet distribution width (PDW) and mean platelet volume (MPV) were significantly greater in rapid ejaculators. Multivariate logistic regression analysis and receiver operating characteristic (ROC) curve analysis showed that the PLT was an independent protective factor for rapid ejaculation. Meanwhile, rapid ejaculators were found to have the lowest serum 5-HT compared to normal and sluggish ejaculators (P < 0.001). Furthermore, there was a positive correlation between the PLT and serum 5-HT (r = 0.662, P < 0.001), indicating that the PLT could indirectly reflect the serum 5-HT concentration. In addition, we assessed the association between the PLT and ejaculatory parameters. There was a negative correlation between ejaculation frequency (EF) and the PLT (r = −0.595, P < 0.001), whereas there was a positive correlation between ejaculation latency (EL) and the PLT (r = 0.740, P < 0.001). This study indicated that the PLT might be a useful and convenient diagnostic marker for predicting the risk of rapid ejaculation.
A Retrospective Analysis of Salivary Gland Tumor Cases: Histological Variations and Clinical Outcomes
Authors: Dolma Kunzes , Issac Anu Sumi , Gupta Renuka , Achanta Surya Kumari , Channe Pallavi P. , Ramanand Oruganti Venkata , Managutti Anil
Published: August 2024

ABSTRACT

Background:

Salivary gland tumors (SGTs) present a diagnostic challenge due to their diverse histological subtypes and variable clinical behavior.

Methods:

This research conducted a retrospective analysis of SGT cases diagnosed and managed at a tertiary care center between 2017 and 2022. Clinical and pathological data were retrieved from medical records and histopathology reports. Statistical analysis was performed to identify factors associated with recurrence and survival outcomes.

Results:

A total of 150 SGT cases were included, comprising 70% benign and 30% malignant tumors. Pleomorphic adenoma and adenoid cystic carcinoma were the most prevalent benign and malignant subtypes, respectively. Surgical resection was the primary treatment modality, with varying recurrence rates observed among different treatment groups.

Conclusion:

The current study provides insights into the histological variations and clinical outcomes of SGTs. Surgical resection remains the mainstay of treatment, with adjuvant therapy reserved for cases with adverse prognostic factors. Further research is needed to optimize therapeutic strategies and improve patient outcomes.
Comparison of Three-Dimensional Bone Changes in Socket Shield Technique Versus Immediate Implant Placement – A Non-Randomized Clinical Trial
Authors: Chaudhary Aditya , Tushar  , Ranjan Madhu , Ananya  , Rani Priya , Prakash Jayant
Published: August 2024

ABSTRACT

Aim:

The present study assessed the three-dimensional bone loss, at three different levels, around implants placed immediately after extraction using the socket shield method versus immediate implant placement.

Materials and Methods:

A non-randomized clinical trial was conducted in 30 cases divided into two groups: socket shield method and immediate implant placement (15 cases each). Horizontal bone width (HBW) (at three different levels from baseline) and vertical bone level (VBL) (mesial and distal surfaces of the implant) were measured preoperatively and 6 months postoperatively by using cone beam computed tomography and radio visio graphy.

Results:

The mean difference at 2-mm and 8-mm HBW from the baseline was better in the socket shield technique, although the results were not significant. Significant results were found in Levene’s test for equality of error variances. The VBL was significant at both the distal and mesial surfaces of the implant.

Conclusion:

The socket shield approach demonstrated promising clinical outcomes in preserving alveolar ridge morphology. It can be utilized as a substitute for the typical instantaneous implant placement in the aesthetic zone.
Assessing the Co-relation between Mandibular Flare and Thickness of Lingual Cortex in Relation to the Third Molars: A Retrospective Cross-sectional Study
Authors: Babu Asha Elizabeth , Srnivasa Prasad T , Menon Hridya M , Mathew Anoop Kurian , Bhuyan Lipsa , Nishat Roquaiya
Published: August 2024

ABSTRACT

Aim:

To assess the co-relation between mandibular flare and thickness of lingual cortex in relation to the third molars.

Materials and Methods:

Retrospectively obtained computed tomography (CT) data of 26 patients was used after classifying them into respective skeletal malocclusion groups (classes I, II, and III). Thickness of lingual cortex was measured at crestal, middle, and apical levels in mandibular third molar region. Two angular and two linear measurements were used to measure mandibular flare. Angular measurements included the angle between condylion (Co) and menton (Me), and between gonion (Go) and menton (Me). Linear measurements included bigonial and bicondylion widths.

Results:

The two angular measurements did not differ significantly among the three skeletal malocclusion groups. Contrastingly, bicondylion width differed significantly among the three groups. Class II group showed no significant correlation between mandibular flare and lingual cortical thickness. Class III group demonstrated a significant negative correlation of linear and angular measurements with cortical bone thickness. Bicondylion width was significantly more in Class III group than in other skeletal groups, which proved an increased mandibular flare in patients with Class III malocclusion.

Conclusion:

Increase in mandibular flare was associated with decreased thickness of lingual cortical bone.
Comparison of the Amount of Debris Extruded From the Apex During Retreatment Procedures Using Several File Systems and to Gauge the Effect of Same and Different Taper on the Debris Extrusion: An In Vitro Study
Authors: Kaul Prakriti , Singh Anshdeep , Mahar Vertika , Gupta Pulkit , Nautiyal Unnati , Sharma Devna
Published: August 2024

ABSTRACT

Background:

To determine the amount of apical extrusion between various file systems during the retreatment procedure and to determine the effect of taper on the same.

Materials and Method:

Seventy mandibular extracted premolars were taken, and preparation was performed using a Woodpecker file (Woodpecker Medical Instrument Co., Ltd., Guilin, China) (25/0.06). The gutta-percha (GP) was removed from each specimen with H file (#40/0.02) to simulate retreatment in seven groups (n = 10) using ProTaper Next (PTN;Dentsply, Maillefer, Ballaigues, Switzerland) (PTN) (30/0.07), Reciproc (25/0.08), Hyflex CM (30/0.06), Mtwo (30/0.05), Neoendo flex (30/0.04), Neoendo hybrid (30/0.04), and Flexicon file (30/0.06). The specimens were held with the help of a rubber stopper and put in the Eppendorf tube of volume 4 mL (pre-weighed before retreatment). The debris that was on the root surface of the specimen was washed with distilled water with 1 mL volume, kept in the oven, and then again weighed after 7 days.

Results:

Apical extrusion was found in the following order: HYFLEX CM (LEAST) < FLEXICON < PROTAPER NEXT < RECIPROC < NEOENDO FLEX < NEOENDO HYBRID < MTWO (HIGHEST).

Conclusion:

W Hyflex CM and Flexicon files showed lesser extrusion of debris than others.
Prosthetic Rehabilitation of a Hemi-mandibulectomy Patient with Interim Mandibular Guide Flange and Maxillary Twin Occlusion: A Case Report
Authors: Raut Mrunal , Kharat Swati , Shetty Karunakar , Gangde Pritesh , Gupta Pratik , Devhade Minakshi
Published: August 2024

ABSTRACT

In hemi-mandibulectomy patients, the fabrication of a successful prosthesis is a challenging task. Segmental resection of the mandible causes deviation toward the resected side resulting in facial disfigurement, difficulty in speech, mastication, swallowing, respiration, and restricted mandibular movements. Such a condition affects the daily life of the patient and might also result in a disturbed psychological state. The primary goal of treating these patients was to achieve facial aesthetics and restore function and phonetics. Such a scenario can be tackled more efficiently with good patient cooperation and a well-fabricated prosthesis.
Evaluation of self medication practices and prescription patterns in patients of chronic kidney disease: A cross-sectional, questionnaire based study
Authors: Tripathi Raakhi K , Pilliwar Chaitali , Gajbhiye Snehalata V. , Bhilwade Sujeet K. , Jamale Tukaram
Published: August 2024

Background:

Pharmacotherapy of chronic kidney disease (CKD) consists of prescribing myriad of drugs such as antihypertensives, antidiabetics, and phosphate binders to delay disease progression and control the comorbidities, resulting in inherent variability in prescriptions. In addition, tendency to self-medicate may further aggravate the condition. Hence, the present study was planned to assess self-medication practices and variability in prescription patterns in CKD patients.

Methodology:

A cross-sectional, questionnaire-based study approved by the ethics committee was conducted in CKD patients attending the nephrology outpatient department. The prescription details which included drug name, dosage form, dose, frequency, duration, and dosage instructions were recorded and prescription completeness was checked. To assess the tendency of CKD patients to self-medicate, each patient was administered a prevalidated [Content Validity Ratio (CVR) = 0.76] 8-item questionnaire which had dichotomous responses “Yes” and “No” and was scored as 2 and 0, respectively (total score 16).

Results:

Three hundred CKD patients (150 on hemodialysis and 150 nondialysis) yielded 300 prescriptions with 1272 drugs. It was evident that 33% of patients did self-medicate themselves with analgesics, and the mean score (7.81 ± 3.01) of self-medication practices was perceived significantly higher in the nondialysis group (8.41 ± 3.46). The most common classes of drugs prescribed in CKD patients were calcium channel blockers (41%), antidiabetic drugs (39%), diuretics (35%), gastrointestinal drugs (35%), and multivitamins (27%), with the average number of drugs being 5.84 ± 0.51.

Conclusion:

Nearly one-third of CKD patients were self-medicating with paracetamol, nonsteroidal anti-inflammatory drugs; more in the nondialysis group emphasizing reinforcement of patient education programs. The most common drugs prescribed were amlodipine, followed by metformin, and the average number of drugs was less in our setting, indicating vigilant dose prescribing in CKD patients.
Guidelines for Characterization of Gas Turbine Engine Total-Pressure, Planar-Wave, and Total-Temperature Inlet-Flow Distortion
Authors:   S-16 Turbine Engine Inlet Flow Distortion  Committee
Published: August 2024

The turbine-engine-inlet flow distortion descriptors summarized in this document apply to the effects of inlet total-pressure, planar-wave, and total-temperature distortions. Guidelines on stability margin, destabilizing influences, types and purposes of inlet data, AIP definition, and data acquisition and handling are summarized from AIR5866, AIR5867, ARP1420, and AIR1419. The degree to which these recommendations are applied to a specific program should be consistent with the complexity of the inlet/engine integration. Total-pressure distortion is often the predominant destabilizing element that is encountered and is often the only type of distortion to be considered, i.e., not all types of distortion need to be considered for all vehicles.
Comportamiento de la movilidad vehicular en ciudades pequeñas. Estudio de caso: Tunja, Boyacá, Colombia
Authors: Calixto Morales Rubén Dario
Published: August 2024

Determinar cuándo un problema vehicular condiciona la función de una ciudad implica identificar las características y consecuencias que afectan directamente la movilidad y otras funciones urbanas. Los problemas de congestión vehicular son recurrentes en las ciudades, independientemente de su tamaño, incluso con el uso de nuevas tecnologías para mejorar la movilidad, como la semaforización inteligente. Sin embargo, las ciudades pequeñas enfrentan una problemática particularmente relevante, ya que aparentemente no deberían experimentar tal situación. Esta problemática condiciona la calidad de vida y afecta negativamente al medio ambiente. Entre los problemas más comunes derivados de esta situación se encuentran la congestión del tráfico, la dependencia excesiva del automóvil, la infraestructura vial inadecuada, el aumento de accidentes entre vehículos y peatones, y la contaminación del aire. El objetivo del presente artículo es comprender cómo la falta de lineamientos para promover la movilidad urbana sostenible está estrechamente ligada a una movilidad efectiva, la implementación de parámetros de planificación urbana y un proceso de participación ciudadana. Tomando como caso de estudio la ciudad de Tunja (Colombia), se busca entender las problemáticas generales de una ciudad pequeña y sus particularidades.
IMPLEMENTASI NILAI-NILAI DAKWAH DI DALAM LEMBAGA PEMBINAAN KHUSUS ANAK (LPKA) KELAS I MEDAN
Authors: Nashrillah Nashrillah , Hafiz Nur , Siregar Imelda Sari , Lubis Muhammad Rival
Published: August 2024

Penelitian ini bertujuan untuk mengetahui bagaimana implementasi nilai-nilai dakwah dalam kegiatan di Lembaga Pembinaan Khusus Anak (LPKA). Hasil penelitian mengenai Implementasi nilai-nilai dakwah diterapkan dengan mengamalkan tadarus Al-Qur’an, membaca Asmaul Husna, berzikir, bersholawat, sholat lima waktu berjamaah, dan pelaksanaan kegiatan pembelajaran. Penelitian ini menggunakan metode kualitatif dengan mengumpulkan data dan pendekatan fakta-fakta yang ada di lapangan mengenai pelaksanakan pembinaaan anak LPKA dan menggunakan studi pustaka (library research).
PENGARUH RETURN ON ASSET (ROA), RETURN ON EQUITY (ROE) DAN NET PROFIT MARGIN (NPM) TERHADAP PERTUMBUHAN LABA PADA PERUSAHAAN PERBANKAN YANG TERDAFTAR DI BURSA EFEK INDONESIA (BEI) PERIODE 2018-2022
Authors: Anggraini Dewi , Iskandar Eddy , Amalia Mekar Meilisa
Published: August 2024

The aim of this empirical research is to find and analyze the relationship between Return On Assets (ROA), Return On Equity (ROE), and Net Profit Margin (NPM) with business profit growth in banking companies listed on the Indonesia Stock Exchange (BEI) from 2018 to 2022. This research looked at the complete financial reports of 47 banking companies. A total of 13 companies met the purposive sampling criteria. Data analysis was carried out using descriptive statistics, classical assumption tests, multiple linear regression, and coefficient of determination. The research results show that ROA does not have a significant or beneficial impact on profit growth. ROE and NPM do not have a positive and significant impact on profit growth. Meanwhile, profit growth is not influenced positively and significantly by ROA, ROE, or NPM.
ANALISIS PENERAPAN SUSTAINABLE FINANCE PADA BANK PERKREDITAN RAKYAT (STUDI KASUS BPR DI KABUPATEN DELI SERANG)
Authors: Ananda Tifani , Siregar Lukman Hakim , Junaidi Listya Devi
Published: August 2024

Lembaga keuangan, termasuk Bank Perkreditan Rakyat (BPR), telah berkonsentrasi pada penerapan prinsip-prinsip keuangan berkelanjutan dalam era keuangan yang terus berkembang. Dengan menggunakan studi kasus sebagai metode utama, penelitian ini bertujuan untuk mengevaluasi penerapan keuangan berkelanjutan pada BPR di Kabupaten Deli Serdang. Metode penelitian kualitatif menggunakan data dari wawancara mendalam dengan manajemen PT BPR Nusantara Bona Pasogit 33 dan PT BPR Solider. Hasil analisis menunjukkan bahwa PT BPR Nusantara Bona Pasogit 33 lebih memahami tentang keuangan hijau dan lebih siap untuk menerapkan dan meningkatkan kegaitan keuangan hijau di fasilitasnya. Untuk dapat menjalankan Sustainable Finance pada BPR yang dikelola, BPR Solider masih membutuhkan pemahaman yang lebih baik tentang konsep dan tata laksana Sustainable Finance. Kedua BPR memiliki pengalaman yang sama dalam menerapkan Sustainable Finance pada sektor pendanaan atau pembiayaan UMKM. Beberapa kendala umum yang dihadapi oleh BPR termasuk risiko yang tinggi bagi penerap dan kurangnya sosialisasi dari OJK. Dalam kegiatan Sustainable Finance BPR Nusantara Bona Pasogit 33 dan BPR Solider baru, empat aspek implementasi awal dilakukan, yaitu penyesuaian sistem teknologi informasi dan pelaporan, pengelolaan lingkungan internal yang ramah lingkungan, desain, dan pengembangan softskill bagi para pelaku kegiatan Lembaga Jasa Keuangan. Studi ini meningkatkan pemahaman kita tentang bagaimana BPR di wilayah ini menerapkan konsep keuangan berkelanjutan. Hasilnya diharapkan dapat membantu dalam pengembangan kebijakan dan praktik keuangan berkelanjutan, terutama yang berkaitan dengan lembaga keuangan mikro seperti BPR.
ANALISIS SISTEM AKUNTANSI PENGGAJIAN KARYAWAN GUNA MENINGKATKAN EFEKTIVITAS PENGENDALIAN INTERNAL PADA PT. PALMA GEMILANG KENCANA
Authors: Rangkuti Sella Aprilia Sari , Iqbal M. , Agustan Tengku Juhri
Published: August 2024

Biaya tenaga kerja yang terbesar adalah gaji, yang memerlukan ketelitian dalam penempatan, penggolongan, pencatatan, dan pembayarannya. Peraturan yang berlaku harus diterapkan untuk mencegah kekeliruan yang disebabkan oleh penetapan, penggolongan, pencatatan, dan pembayaran yang tidak tepat. Untuk memastikan bahwa pengendalian internal PT. Palma Gemilang Kencana berjalan dengan baik sesuai dengan tujuan perusahaan, penelitian ini bertujuan untuk menyelidiki bagaimana sistem akuntansi penggajian yang digunakan oleh perusahaan meningkatkan efektivitas pengendalian internal. Penelitian jenis kualitatif ini mengumpulkan data melalui wawancara dengan tiga informan yang memiliki hubungan langsung dengan sistem penggajian karyawan perusahaan. Penelitian juga menggunakan observasi, yaitu melakukan penelitian langsung di lokasi yang telah disesuaikan untuk penelitian ini, dan dokumentasi, yaitu mencatat data untuk menyempurnakan penelitian yang dilakukan oleh penulis di PT. Palma Gemi. Dalam penelitian ini, penulis mewawancarai tiga informan tentang penggajian, yaitu bagian administrasi, manajer keuangan, dan personalia. Hasilnya menunjukkan bahwa perusahaan mengumpulkan dokumen yang mendukung sistem penggajiannya, seperti daftar hadir atau tidak hadir. Menurut penelitian penulis, perusahaan masih memiliki karyawan yang tidak setuju dengan sistem akuntansi penggajian karyawannya. Akibatnya, sistem akuntansi penggajian karyawan perusahaan tidak sepenuhnya efektif dalam mengendalikan internal perusahaan