bluuebunny/crossref_metadata_2025 huggingface dataset:
On the Similarity over the Ring of Integers of Certain Nilpotent Matrices of Maximal Rank
Authors: Sidorov Sergey V. , Utkin German V.
Published: January 2024

This paper is devoted to the problem of matrix similarity recognition over the ring of integers for some families of matrices. Namely, nilpotent upper triangular matrices of maximal rank are considered such that only first and second superdiagonals of these matrices are non-zero. Several necessary conditions are obtained for similarity of such matrices to matrices of the form superdiag(a1,a2,…,an−1)
with a single non-zero superdiagonal, that is a generalization of the Jordan cell Jn(0)=superdiag(1,1,…,1)
. These conditions are formulated in simple terms of divisibility and greatest common divisors of matrix elements. The result is obtained by reducing the problem of similarity recognition to the problem of solving in integers a system of linear equations and applying the known necessary similarity conditions for arbitrary matrices. Under some additional conditions on the elements a1,a2,…,an−1
of the first superdiagonal of matrix A
, it is proven that the matrix A
is similar to matrix superdiag(a1,a2,…,an−1)
regardless of the values of the elements of the second superdiagonal. Moreover, for the considered matrices of the third and the fourth orders, easily verifiable necessary and sufficient similarity conditions are obtained describing their similarity to a matrix of the form superdiag(a1,a2,…,an−1)
.
On the stability of a nonlinear nonautonomous scalar equation with variable delay
Authors: Khusanov Jumanazar Kh. , Kaxxorov Azizbeck E.
Published: January 2024

The stability problem of a scalar functional differential equation is a classical one. It has been most fully studied for linear equations. Modern research on modeling biological, infectious and other processes leads to the need to determine the qualitative properties of the solutions for more general equations. In this paper we study the stability and the global limit behavior of solutions to a nonlinear one-dimensional (scalar) equation with variable delay with unbounded and bounded right-hand sides. In particular, our research is reduced to a problem on the stability of a non-stationary solution of a nonlinear scalar Lotka-Volterra-type equation, on the stabilization and control of a non-stationary process described by such an equation. The problem posed is considered depending on the delay behavior: is it a bounded differentiable function or a continuous and bounded one. The study is based on the application of the Lyapunov-Krasovsky functionals method as well as the corresponding theorems on the stability of non-autonomous functional differential equations of retarded type with finite delay. Sufficient conditions are derived for uniform asymptotic stability of the zero solution, including global stability, for every continuous initial function. Using the theorem proven by one of the co-authors on the limiting behavior of solutions to a non-autonomous functional differential equation based on the Lyapunov functional with a semidefinite derivative, the properties of the solutions’ attraction to the set of equilibrium states of the equation under study are obtained. In addition, illustrative examples are provided.
Investigation of different influence functions in peridynamics
Authors: Deryugin Yuriy N. , Vetchinnikov Maxim V. , Shishkanov Dmitry A.
Published: January 2024

Peridynamics is a non–local numerical method for solving fracture problems based on integral equations. It is assumed that particles in a continuum are endowed with volume and interact with each other at a finite distance, as in molecular dynamics. The influence function in peridynamic models is used to limit the force acting on a particle and to adjust the bond strength depending on the distance between the particles. It satisfies certain continuity conditions and describes the behavior of non-local interaction. The article investigates various types of influence function in peridynamic models on the example of three-dimensional problems of elasticity and fracture. In the course of the work done, the bond-based and state-based fracture models used in the Sandia Laboratory are described, 6 types of influence functions for the bond-based model and 2 types of functions for the state-based model are presented, and the corresponding formulas for calculating the stiffness of the bond are obtained. For testing, we used the problem of propagation of a spherically symmetric elastic wave, which has an analytical solution, and a qualitative problem of destruction of a brittle disk under the action of a spherical impactor. Graphs of radial displacement are given, raster images of simulation results are shown.
Numerical model of vapor-air-diesel autothermal reformer
Authors: Yapparova Aigul R. , Markelova Tamara V. , Snytnikov Pavel V.
Published: January 2024

The use of fuel cell power plants is a promising area in the generation of electricity. The path to their widespread use is hindered by their high cost and the availability of the fuel used. To solve this problem, effective energy conversion systems operating on diesel fuel are being developed. The main goal is to create a device (a fuel processor), which would convert diesel fuel into a hydrogen-containing gas. The device consists of several components: a nozzle for injecting liquid fuel having the form of drops into superheated steam, a mixing and vaporization zone for diesel fuel, an air supply area, and a reaction zone including a catalyst. The selection of temperature for the vaporization process should be made in such a way that, on the one hand, liquid droplets do not come into contact with the catalyst surface, and, on the other hand, gas-phase reactions are not initiated in the mixing zone. Developing such a device requires not only conducting laboratory experiments and studying the process catalyst, but also optimizing the basic physical parameters of the device. These parameters are its linear dimensions, operational temperature, reactant flow rates, and many others. Carrying out such a study is impossible without using methods of mathematical modeling. This significantly reduces the time and cost of work. This paper presents a digital model of an air-hydrocarbon mixture generator in an axisymmetric formulation. The dynamics of subsonic multiphase flow of water vapor carrying drops of liquid diesel fuel, the process of diesel fuel evaporation and mixing with water vapor and air are studied. The mathematical model is implemented in the ANSYS Fluent package (academic license of SSCC SBRAS). A series of calculations for various mixture feed temperatures are performed to optimize the main parameters. For the established optimal temperature, modeling of the mixture mixing process with air is carried out.
Antioxidant supplements as a means to prevent Alzheimer’s disease following COVID-19 infection
Authors: Hosseini Mahshid , Farrokhi Majid Reza
Published: January 2024

Oxidative stress has been proposed as a factor in many conditions, such as Alzheimer’s disease. Moreover, there is a link between oxidative stress and a variety of COVID-19 symptoms. The occurrence of multiple diseases can be ascribed to long-term exposure to heightened oxidative stress impeding the body’s normal homeostatic function. Complications arising from elevated levels of oxidative stress include lipid peroxidation, mitochondrial dysfunction, protein oxidation, damage to deoxyribonucleic acid (DNA), glycoxidation, weakened antioxidant defence, and impaired amyloid clearance. Moreover, oxidative stress leads to the onset of inflammation through an increase in the levels of active inflammatory factors. It is widely accepted that the prolongation of this detrimental cycle contributes to the development of pathological states. Consequently, interruption of the cycle of oxidative stress is imperative to prevent disease onset. Research has primarily focused on individual antioxidants, with an emphasis on vitamins C and E, owing to their significant properties as antioxidants that help reduce oxidative stress. Compared to individual antioxidants, supplements encompassing a harmonious assortment mixture of multiple antioxidants may be more effective in combating various symptoms associated with pre-existing conditions and current health concerns like COVID-19 and Alzheimer’s disease. This review explores the correlation between oxidative stress, COVID-19 infection, and Alzheimer’s disease. Additionally, we suggest the use of Twendee X, a remarkably powerful antioxidant compound, to reduce the rate of cognitive decline in individuals with Alzheimer’s disease. Moreover, Twendee X can prevent and alleviate COVID-19 and its associated symptoms.
Endokrin változások, endokrin betegségek időskorban
Authors: Kőhalmi Edit , Bakó Gyula
Published: January 2024

A világ népessége, a születéskor várható élettartam és ezzel együtt az idősek
aránya a népességen belül visszafordíthatatlanul növekszik. Ez a trend a
belátható időn belül megfordíthatatlannak látszik, aminek jelentős egészségügyi
kihatásai vannak. Az idősek körében aránytalanul magasabb az endokrin és
anyagcsere-betegségek prevalenciája. Az idősek patofiziológiai paraméterei
jelentősen eltérnek a fiatal felnőttekéitől, aminek következtében morbiditási
„mintázatuk” is más. A hypopituitarismus, a hypothyreosis, az osteoporosis, a
diabetes mellitus, a mellékvesekéreg-elégtelenség, a hypogonadismus különböző
formái, a malignus endokrin betegségek gyakoribbak idősekben. Nagy figyelmet
igényel, hogy időskorban a hormonok laboratóriumi értékei általában „normálisan”
alacsonyabbak a standardoknál. A kezelés során ennek a korcsoportnak az
adottságait fontos tényezőként kell figyelembe venni, hogy optimális eredményt
érhessünk el. A belgyógyászat és az endokrinológia oktatása során az időskorra
vonatkozó eltéréseknek fokozott hangsúlyt kellene kapniuk a graduális képzés
idején. Orv Hetil. 2024; 165(2): 51–58.
ANALISIS PEMBERIAN KREDIT UNTUK MEMINIMALKAN KREDIT BERMASALAH PADA KSPPS BMT MANDIRI SEJAHTERA CABANG BALONGPANGGANG
Authors: Sholekhah Zumrotus , Reviandani Wasti
Published: January 2024

Penelitian ini bertujuan untuk menganalisis proses pemberian kredit simpan pinjam kepada anggota Koperasi BMT Mandiri Sejahtera cabang Balongpanggang. Dengan menerapkan prosedur pemberian kredit yang maksimal maka akan dapat meminimalkan adanya resiko kredit bermasalah yang dapat mempengaruhi tingkat kesehatan pada koperasi. Teknik pengumpulan data dalam penelitian ini adalah wawancara dan dokumentasi. Teknik analisis yang digunakan adalah deskriptif kualitatif dengan menggunakan model interaktif Miles dan Hubermen. Hasil penelitian ini menunjukkan bahwa KSPPS BMT Mandiri Sejahtera cabang Balongpanggang dalam menerapkan prosedur pemberian kredit sudah berjalan dengan cukup baik dan sesuai dengan standar yang telah ditetapakan. Analisis yang diterapkan dalam pemberian pinjaman kredit meliputi 5C (karakter, kemampuan, modal, jaminan, kondisi). Namun, dalam melakukan analisis 5C pihak koperasi masih terdapat kendala saat melakukan analisis character dan condition of economy dari calon nasabah. Upaya yang telah dilakukan oleh pihak koperasi untuk meminimalkan adanya kredit bermasalah yaitu dengan melakukan penagihan secara rutin baik melalui telepon maupun kunjungan ke rumah nasabah dan juga melakukan rescheduling, restructuling dan PPAP (Penghapusan Bukuan).
Empowering Customer Support: Using Generative AI and Pre-trained LLM's in a Chatbot Revolution
Authors: B N Munesh Kumar , A Rohini , Shaik Armaan , Shaik Mohammad Basha , Abrar Mohammed
Published: January 2024

This paper addresses the challenge of efficiently handling a diverse array of customer queries by proposing the development of an innovative web-based customer support chatbot. The objectives encompass creating a versatile system capable of interpreting and resolving a spectrum of customer complaints, enhancing support staff efficiency, and facilitating knowledge base updates. The proposed methodology employs the MERN stack for web app development and integrates Generative AI and pre-trained Large Language Models (LLMs), specifically OpenAI's prebuilt models, for intelligent responses. The pseudo code outlines the interactions between the chatbot, support staff, and administrators, ensuring a seamless process. Results indicate the chatbot's commendable ability to accurately interpret queries, showcasing language versatility in various Indian and foreign languages. Efficient handling of varied phrasings and also accommodating grammatical errors. The use of prebuilt models is highlighted as a practical and efficient solution, reducing implementation time compared to custom models. Additionally, the implementation is recognized for its scalability, positioning it as a practical and efficient solution for evolving customer support needs in the near future.
Eliminating student misconceptions regarding the unit, Adventure of Democracy, in sixth grade social studies lessons
Authors: Çelikkaya Tekin , Kürümlüoglu Mutlu
Published: January 2024

Misconceptions are judgments formed in the mind of an individual about a concept that contradicts scientific principles. Identifying and correcting existing misconceptions in students’ minds is an important part of education. To help students properly grasp the concepts covered in the curriculum, any existing misconceptions should be identified and eliminated first, which will ensure that they will better learn the concepts that they encounter in the future. Adopting an action research design, we aimed to examine whether the misconceptions of 6th grade students regarding the study unit, The Adventure of Democracy, have been resolved. The study group consisted of 24 students in classes 6/A and 6/B at the Havuz Secondary School in the Kangal district of the Sivas province of Turkey in the 2017/2018 academic year. Certain methods were used to produce activities aimed at teaching concepts and eliminating misconceptions – audio recordings and field notes were used as the data collection tools. The data were analysed through descriptive analysis. The analysis revealed that the action research activities were effective in teaching the targeted concepts and eliminating the misconceptions held by students.
Comparing the technological pedagogical content knowledge-practical proficiency of novice and experienced life sciences teachers
Authors: Ramnarain Umesh , Malope Memory
Published: January 2024

The purpose of this study was to assess and compare the technological pedagogical content knowledge-practical (TPACK-Practical) proficiency of novice and experienced South African life sciences teachers. A quantitative design was followed and 155 life sciences teachers participated. A 17-item questionnaire was administered to establish the TPACK-P proficiency levels of the life sciences teachers. Five TPACK-P proficiency levels were identified based on the questionnaire responses, namely: level 0 (lack of use of information communications technology [ICT]); level 1 (basic understanding of ICT use); level 2 (simple adoption of ICT use); level 3 (infusive application of ICT); and level 4 (reflective application of ICT use). The ANOVA test showed that there was no significant difference between the TPACK-P proficiency of novice and experienced teachers. Based on responses to the questionnaire, the majority of the teachers who participated in the study demonstrated level 3 proficiency. A small percentage of teachers displayed levels 1, 2, and 4 proficiencies across the groups. We conclude with a recommendation for professional development to support the teachers’ TPACK-P better. The purpose of such a professional development programme should be to instil a deeper appreciation of ICT within life sciences teachers and to capacitate them to integrate ICT during their classroom practice, ultimately conducting lessons that are more meaningful to the learners.
An analysis of the effects of history in the Truth and Reconciliation Commission poetry
Authors: Mabunda Magezi , Ramhurry Cindy
Published: January 2024

Scholars raise 2 salient questions regarding poetry in post-apartheid South Africa. One is whether new poetry emerged in the post-apartheid South Africa, and the other is whether poetry produced during and after the Truth and Reconciliation Commission is capable of capturing the imagination of the reading public without resorting to the bigotry of Black versus White. Literature highlights the need for South African poets to move away from using historical facts as the basis for making literary representation. We acknowledge that the use of historical facts as the basis for literary representation of societies may be seen as insensitive to the victims of the injustices of the past practices in highly politically polarised communities. At the same time, we argue that historical narratives with positive ideological intent can heal wounds and unite a nation. To justify this position, we adopted a 2-fold perspective: firstly, we investigated the effects of using history as the basis for literary representation and, secondly, we examined the extent to which post-apartheid South African poets may use history as a necessary tool to enforce unity and a sense of forgiveness.
Reflexões sobre a organização do mercado de trabalho agrícola
Authors: AGUIRRE BASILIA MARIA BAPTISTA , BIANCHI ANA MARIA
Published: January 2024

RESUMO Este artigo aborda o tema da organização do mercado de trabalho rural no Brasil nos últimos 30 anos. Discute a interação entre mudança técnica, demanda sazonal de mão de obra e aumento do número de trabalhadores temporários. Os trabalhadores temporários recrutados por meio de agentes são comparados aos contratados diretamente. A última parte do artigo aborda uma discussão preliminar sobre as condições apresentadas pelos trabalhadores temporários para negociação coletiva.
A política cambial em discussão
Authors: ZINI JÚNIOR ALVARO ANTÔNIO
Published: January 2024

RESUMO Os indicadores para a taxa de câmbio real do Brasil são calculados usando diferentes definições e focando no que aconteceu com esses índices durante o plano Cruzado. A taxa de câmbio real efetiva mostra pouca apreciação em 1986, embora a taxa Cruzado/Dólar tenha apreciado. O resultado é preocupante tendo em vista a queda de 25% no superávit comercial do Brasil em 1986. O artigo argumenta que o saldo comercial líquido é explicado por três variáveis: a taxa de câmbio real efetiva, a renda real interna e a renda real no resto do mundo. Um exercício econométrico apresenta fortes efeitos renda, efeitos que são ignorados pela política de minidesvalorizações. O artigo então analisa a sugestão de um regime cambial duplo para o Brasil e conclui que tal sistema provavelmente trará mais instabilidade à economia. Delineia-se uma proposta alternativa de “abordagem de planejamento” para a política cambial.
Para a superação da crise
Authors: JAGUARIBE HÉLIO
Published: January 2024

RESUMO Este é um projeto de economistas e sociólogos do PSDB - Partido da Social Democracia Brasileira - para superar a crise que a economia brasileira enfrenta.
As funções IS-LM e a “neoclassização” do pensamento de Keynes
Authors: LIMA LUIZ ANTONIO DE OLIVEIRA
Published: January 2024

RESUMO Este artigo analisa primeiramente as características anti-keynesianas do modelo “IS-LM” desenvolvido por Hicks, bem como as extensões deste modelo na versão de Pigou e Modigliani. Em uma segunda etapa, analisa as inconsistências internas do modelo, apontadas pelo próprio Hicks, quando se ajusta uma relação de fluxo expressa na curva IS com uma relação de estoque ou balanço, expressa pela curva LM.
A lei do valor e a crise do nosso tempo
Authors: PAULA JOÃO ANTONIO DE , PIMENTEL FERNANDO DAMATA
Published: January 2024

RESUMO Este ensaio é sobre a atual crise das instituições, estruturas e políticas que possibilitaram o notável crescimento da economia capitalista mundial por mais de três décadas após a Segunda Guerra Mundial. Aborda o enfraquecimento do dólar, a instabilidade do sistema financeiro internacional, o endividamento extremo de países, empresas e governos e a deterioração de instituições como o FMI e o GATT. Sustentamos que a situação atual também envolve uma crise dos mecanismos gerais de regulação capitalista, ou seja, a lei do valor e seus pseudo-substitutos, como a intervenção estatal e a administração oligopolista. Em suma, argumentamos que a crise que o capitalismo enfrenta na atualidade é geral - econômica, política e institucional - e que resulta dos mesmos mecanismos que estimularam o rápido crescimento nas décadas anteriores. Nesse sentido, o imbróglio atual é uma espécie de resposta “autoimune”, ou seja, decorre do bloqueio da ação higienizadora da “destruição criativa” de Schumpeter.
Preços de fatores e desemprego rural no Brasil: um exame crítico de abordagens neoclássicas
Authors: MUELLER CHARLES C.
Published: January 2024

RESUMO É amplamente sabido que no Brasil, agrícola! o crescimento e a modernização estão ocorrendo juntamente com uma substancial “liberação” da força de trabalho rural. Segundo avaliações baseadas na doutrina neoclássica, isso se deve a uma forte distorção dos preços relativos dos fatores. Equipamentos artificialmente baratos e mão-de-obra “cara” favoreceram uma substituição em larga escala do primeiro pelo último. Assim, os trabalhadores estão sendo expulsos das fazendas em um ritmo mais rápido do que o permitido pela geração de empregos no restante da economia. Para corrigir essa situação, seria necessário eliminar as distorções dos preços dos fatores. O artigo argumenta que essas avaliações estão equivocadas. Ignoram a real natureza do processo que levou à adoção de tecnologias mecânicas e a uma crescente “liberação” de mão-de-obra do meio rural; o fenômeno é consideravelmente mais complexo do que o que está implícito na substituição de equipamento por trabalho ao longo de uma isoquanta que apresenta substitutibilidade. Argumenta, ainda, que a substituição da mão-de-obra por máquinas não seria revertida pela mera adoção de uma política que eliminasse a “distorção” nos preços dos fatores.
Japanese Banks and The Latin American Debt Problems
Authors: HORISAKA KOTARO
Published: January 2024

ABSTRACT The paper outlines the relation of Japan, especially its private banking facilities, to the Latia America foreign problem. It gives relevant background information and examines the approach taken by Japanese financial circles. Japan has now become the country with the world’s biggest trade surplus and is regarded as having the largest financial reserves. But Japan’s presence in discussing fundamental debt relief measures has not been significant as its total amount of credit might imply.
TREINAMENTO DE HABILIDADES SOCIAIS E ESTRESSE NA UNIVERSIDADE: UM ESTUDO DE CASO
Authors: Bezerra Gabrielle Selleri , Feitosa Fabio Biasotto , Wagner Márcia Fortes , Rodriguez Tomás Daniel Menéndez , Rodrigues Alessandra da Silva
Published: January 2024

RESUMO A aplicação do Treinamento de Habilidades Sociais no contexto universitário pode ser eficaz para a redução do estresse percebido pelos estudantes. Assim, o objetivo do presente artigo foi descrever, no formato de um estudo de caso único, o processo terapêutico de um Treinamento de Habilidades Sociais realizado com uma estudante de Psicologia, apresentando dados referentes à eficácia da intervenção. As avaliações pré e pós-teste foram feitas com os seguintes instrumentos: Inventário de Habilidades Sociais 2 (IHS2-Del-Prette), Escala de Estresse Percebido (PSS-14), entrevistas e diário de campo. Contatou-se o aprimoramento de habilidades sociais como recusar e fazer pedidos, lidar com críticas e expor desagrado e solicitar mudança de comportamento do outro, e redução dos níveis de estresse com base em dados qualitativos e quantitativos, com manutenção desses resultados no follow-up de seis semanas. Concluiu-se que o Treinamento de Habilidades Sociais realizado possibilitou a melhora da experiência na universidade para a participante.
Miscellaneous notes on the fern family Blechnaceae (Polypodiopsida) from Tropical America
Authors: Dittrich Vinícius Antonio de Oliveira , Gasper André Luís de
Published: January 2024

Abstract We present here new discoveries in Blechnaceae (Polypodiopsida). There are new records in Austroblechnum, Blechnum, Cranfillia, and Parablechnum for different political units and areas of the Neotropics. These (and other) records are reported here, alongside with two new necessary combinations in Parablechnum and an updated key to the Brazilian species of the genus. Also, an update of Blechnum description was made.
Flora of Anacardiaceae in the Upper Paraná Atlantic Forest
Authors: Panizza Adela María , Temponi Lívia Godinho , Caxambu Marcelo Galeazzi , Lima Laura Cristina Pires
Published: January 2024

Abstract The Atlantic Forest has one of the richest floras in the world and floristic surveys are essential to understand its biodiversity and promote its conservation. This study aims to contribute to the floristic understanding of Anacardiaceae in the Iguaçu National Park (Brazil) and the Iguazú National Park (Argentina). Monthly samplings were performed from 03/2019 to 02/2020 and sporadic samplings from 11/2020 to 01/2021 in the main trails from both parks, as well as herbarium review and surveys on virtual platforms. Two native species: Lithraea molleoides and Schinus terebinthifolia, and two exotic cultivated species: Mangifera indica and Spondias purpurea were found in the Iguaçu National Park and only one native species, Schinus terebinthifolia, in the Iguazú National Park. Identification key, descriptions, photographs with diagnostic characters of the taxa, taxonomic comments, geographical distribution, phenology, common names, uses and observations are provided.
Cr(VI) absorption in Salvinia minima depends of seasonal development and nutrients availability rather than biomass accumulation
Authors: Gultemirian María de Lourdes , Cuéllar Natalyn Trujillo , Prado Carolina , Chocobar-Ponce Silvana , Tabernero Romina , Pagano Eduardo , Rolandi María Laura , Hilal Mirna , Rosa Mariana
Published: January 2024

Abstract We analysed the capacity of Salvinia minima plants collected from different seasons to accumulate Cr(VI) in presence or absence of mineral nutrients. Plants were collected in August and November and they were grown in both water and Hoagland solution with and without Cr(VI). August plants showed development of new fronds, a low content of soluble sugars, and an increase in biomass. In November plants, a lower number of new fronds, a higher content of soluble sugars, and a lower increase in biomass were observed. November plants accumulated more Cr than those from August and the growth media showed an increase in DO. These results would indicate that a greater accumulation of biomass (August plants) does not necessarily lead to a greater Cr accumulation. Salvinia plants did not show demand for mineral nutrients except for phosphate and magnesium. Changes in the ion composition of growing media during the assay show possible differences in mineral requirement between higher and lower plants. Our results showed that Cr(VI) accumulation in S. minima plants depends on the development stage and the mineral nutrients composition of the growth medium.
Flora and Phytophysiognomies of an Atlantic Forest remnant on the coast of Southeast Brazil
Authors: Guimarães Gabriel Silva , Nunes-Freitas André Felippe , Baumgratz José Fernando Andrade
Published: January 2024

Abstract The present work describes the phytophysiognomies and inventories the remaining floristic diversity of the Brisas Environmental Protection Area, which is located on the coast of Sepetiba Bay in the state of Rio de Janeiro, Brazil, covering approximately 101 hectares. Three phytophysiognomies were identified and described, namely Restinga, the Lowland Dense Ombrophylous Forest and the Mangrove. Different types of vegetation can be recognized for Restinga, such as beaches and dunes, those located on sandy ridges, in this case represented by Low and High Restinga forests, and the vegetation associated with depressions, such as the Swampy Restinga and Swampy forest. The floristic survey identified 311 species, distributed in 231 genera and 86 families. Herbaceous plants represent 29.26% of the flora, followed by vines (27.75%), trees (27.33%), shrubs (14.46%) and epiphytes (4%). Restinga is home to 81% of the flora, followed by the Lowland Dense Ombrophylous Forest (28.30%) and the Mangrove (2.25%). The most representative families were Fabaceae (38 spp.), Euphorbiaceae (15 spp.), Asteraceae (14 spp.) and Sapindaceae (14 spp.). The area has low floristic similarity with other areas of the state of Rio de Janeiro, but it has a greater grouping with restingas from the state of Rio de Janeiro.
Caracterização de casos e indicadores epidemiológicos e operacionais da hanseníase: análise de séries temporais e distribuição espacial, Piauí, 2007-2021
Authors: Barros Ian da Costa Araújo , Sousa Carliane da Conceição Machado , Silva Neylany Raquel Ferreira da , Mascarenhas Márcio Dênis Medeiros
Published: January 2024

RESUMO Objetivo Analisar características epidemiológicas, tendência temporal, distribuição espacial de casos e indicadores da hanseníase no estado do Piauí, 2007-2021. Métodos Estudo ecológico de séries temporais com dados do Sistema de Informação de Agravos de Notificação, descrevendo a distribuição espacial e a tendência temporal da hanseníase pela regressão de Prais-Winsten. Resultados Foram notificados 17.075 novos casos de hanseníase. A distribuição espacial da taxa média de detecção identificou áreas hiperendêmicas nas regiões Carnaubais, Entre Rios, Vale dos Rios Piauí e Itaueiras. Verificou-se tendência decrescente nas taxas de detecção geral [variação percentual anual (VPA) = -6,3; IC95% -8,1;-4,5], de detecção em menores de 15 anos (VPA = -8,6; IC95%12,7;-4,3) e de detecção de casos com grau 2 de incapacidade física (VPA = -4,4; IC95%-7,0;1,8), e tendência crescente na proporção de casos multibacilares. Conclusão Observaram-se elevadas taxas de detecção de hanseníase, apesar da tendência decrescente dos indicadores, exceto a proporção de casos multibacilares.
As aranhas-marrons (Loxosceles) estão se estabelecendo em Pernambuco: série de casos, 2018-2022
Authors: Amorim Maria Lucineide Porto , Simão Diógenes Gayo de Oliveira , Albuquerque João Paulo Vieira e Silva de , Ramos Beatriz Maria Tenório , Nascimento Gustavo José Lopes do , Mello Maria Júlia Gonçalves de
Published: January 2024

RESUMO Objetivo Descrever os acidentes por picada de aranhas-marrons (gênero Loxosceles), notificados no Centro de Informação de Assistência Toxicológica de Pernambuco (CIATox-PE), Brasil, no período de 2018 a 2022. Métodos Estudo de série, sobre casos notificados no CIATox-PE. Resultados Foram incluídos 22 casos com mediana de idade de 35 anos e houve predomínio do sexo feminino (13); os casos ocorreram nas zonas rural e urbana (12 versus 10), durante a noite (10), e Petrolina foi o município com mais notificações (6); as picadas ocorreram, principalmente, nos membros inferiores (11) e superiores (9), quase exclusivamente dentro das residências (21); para 8 acidentados, não se prescreveu soroterapia específica por terem ultrapassado o tempo de efetividade. Conclusão Os casos de loxoscelismo ocorreram com maior frequência no sexo feminino, nas zonas rural e urbana indiferentemente, quase todos foram intradomiciliares e houve demora na procura por atendimento médico.
Knowledge about sudden infant death syndrome prevention among postpartum women in Southern Brazil, 2019: a cross-sectional survey
Authors: Souto Anelise Medeiros , Marmitt Luana Patrícia , Mola Christian Loret de , Cesar Juraci Almeida
Published: January 2024

ABSTRACT Objective To assess knowledge on sudden infant death syndrome (SIDS) prevention among postpartum women who received prenatal care in public and private services in Rio Grande, Rio Grande do Sul, Brazil, in 2019. Methods A cross-sectional study was conducted with postpartum women who gave birth in that municipality in 2019; the outcome was the indication of incorrect sleeping position (side/supine position) to prevent SIDS; the chi-square test was used to compare proportions between those who underwent prenatal care in public and private services. Results Among all 2,195 postpartum women, 67.7% (95%CI 65.7;69.6) were unaware of the position that prevents SIDS, 71.6% were public care service users; 77.8% of them feared choking/suffocation; 1.9% were informed about SIDS during prenatal care; doctors/nurses (70.5%) and grandmothers (65.1%) were influential regarding the baby’s sleeping position. Conclusion Most postpartum women were unaware of the sleeping position that prevents SIDS, especially those receiving care in the public sector; in general, this subject is not discussed in prenatal care.
Conhecimento sobre prevenção da síndrome da morte súbita do lactente entre puérperas no Sul do Brasil, 2019: um estudo transversal
Authors: Souto Anelise Medeiros , Marmitt Luana Patrícia , Mola Christian Loret de , Cesar Juraci Almeida
Published: January 2024

RESUMO Objetivo Avaliar o conhecimento sobre prevenção da síndrome da morte súbita do lactente (SMSL) entre puérperas com pré-natal realizado nos serviços público e privado de Rio Grande, Rio Grande do Sul, Brasil, 2019. Métodos Estudo transversal, com puérperas do município; seu desfecho constituiuse da indicação de posição incorreta para dormir (decúbito lateral ou dorsal), visando prevenir a SMSL; utilizou-se o teste qui-quadrado para comparar proporções do desfecho e de exposição entre puérperas que realizaram pré-natal nos serviços público e privado. Resultados De 2.195 puérperas, 67,7% (IC95% 65,7;69,6), majoritariamente atendidas na rede pública (71,6%), desconheciam a posição preventiva da SMSL; 77,8% temiam engasgo/afogamento; 1,9% foram informadas sobre SMSL no pré-natal; médicos(as)/enfermeiros(as) (70,5%) e avós (65,1%) mostraram-se influentes na decisão sobre como posicionar o bebê adormecido. Conclusão A maioria das puérperas, especialmente as atendidas na rede pública, desconhecia a posição que previne SMSL; geralmente, o tema não é abordado no pré-natal.
Ameloblastoma uniquístico en quiste dentígero. Dificultades diagnósticas. Presentación de un caso y revisión la literatura
Authors:   Universidad  Nacional  del  Nordeste, Briend Maria Susana , Iturris Mendiburu Judith Lilian , Diaz Colodrero Liset Eliana , Urbieta Arvelaiz Álvaro Rodrigo , Modenutti Claudio Alejandro
Published: January 2024

ntroducción: el ameloblastoma uniquístico (au) es una variante clínico-patológica de ameloblastoma con ca-racterísticas clínicas y radiográficas indistinguibles de otras lesiones quísticas. Habitualmente benigno, afecta un grupo etario más joven. El revestimiento quístico del ameloblastoma uniquístico no siempre es uniforme, pudiendo consistir focalmente en un epitelio no específico u otro similar al de otros quistes odontogénicos. Esta variabilidad en la presentación histológica, refuerza la importancia del adecuado muestreo en estas lesio-nes quísticas, que permitan arribar al diagnóstico correcto. Presentación del caso: el propósito de este trabajo es presentar un caso de un paciente masculino de 14 años, que consulta por abultamiento facial derecho, no doloroso, de más de dos años de evolución, sin signos de flo-gosis. Radiográficamente, se observó una imagen osteolítica intraósea, con adelgazamiento de las corticales, con una pieza dentaria incluida, con diagnóstico presuntivo de quiste odontogénico. Se realizó biopsia inci-sional y punción aspiración, arribando al diagnóstico de quiste dentígero con transformación ameloblastoma-tosa. Se realizó la extirpación completa de la lesión con márgenes de seguridad e injerto óseo. El diagnóstico definitivo fue de ameloblastoma uniquístico mural. La evolución fue favorable con controles periódicos cada 3 meses desde hace más de un año.Conclusión:destacamos la relevancia del conocimiento de sus características y del muestreo para el correcto diagnóstico histopatológico determinante del manejo terapéutico posterior.
Estudio descriptivo de la prosocialidad en estudiantes de educación superior de Colombia
Authors:   Universidad Cooperativa de Colombia, Cañas Betancur Dora Cristina , Ardila Rodríguez William ,   Universidad Cooperativa de Colombia, Vásquez Caballero Diego Andrés ,   Universidad Cooperativa de Colombia, Portilla Duque Nidia
Published: January 2024

El objetivo de este estudio fue caracterizar la prosocialidad frente a características sociodemográficas en estudiantes universitarios. El método fue cuantitativo, no experimental, de corte transversal y con alcance descriptivo. La muestra estuvo conformada por 1090 participantes, mayores de edad, de ambos sexos y que estuvieran realizando estudios en alguna de las universidades de la ciudad. Como instrumento, se utilizó la Escala de Conducta Prosocial (ecp, Auné y Attorresi, 2017), que fue adaptada para Colombia y muestra pro-piedades estadísticas adecuadas en cuanto a los índices de consistencia interna. Para la subescala Confortar, se identificó un alfa de Cronbach de .91 y para la subescala de Ayuda, de .84. Los resultados indican que no se encuentran diferencias estadísticamente significativas en cuanto a la conducta prosocial en relación con la edad, el tipo de universidad (pública o privada), el estado civil, ni los programas de estudio. Pero, sí se encontraron diferencias en cuanto al nivel académico y el sexo para la subescala Confortar.
Improvement of Mental Health Symptoms in Response to Ketamine Therapy in Medicaid-Eligible Patients
Authors: CJ Bonnett , J Bonder , R Jain , A Stabbert , C Sayre
Published: January 2024

Since 2020 there has been an expansion in the number of studies highlighting the positive effect that Ketamine for Non-Anesthetic Indications (KNAI) can have on patients suffering with mental health disorders. Medicaid programs cover a large community of patients that face significant health disparities and suffer more frequently from mental health conditions. Many of these conditions are exacerbated due to socioeconomic stressors, lack of access to care, and poor support systems. Our case study focuses on 289 Medicaid-eligible patients and the effect ketamine treatment had on their mental health symptoms. These participants had an established diagnosis of Generalized Anxiety Disorder (GAD), Major Depressive Disorder (MDD) and/or Post Traumatic Stress Disorder (PTSD) prior to beginning treatment. The GAD-7, PHQ-9, and PCL-5 surveys were utilized for assessment of symptomatology in this cohort of patients. These instruments were all deployed prior to beginning treatment and at the end of the six-session Induction Series of ketamine treatments. The comparison of scores on these screening instruments pre-and post-treatment demonstrated a clinically significant reduction in symptomatology in the three diagnosis cohorts of patients listed above.
Hitler’s Error of Memory: Symptom or Propaganda Ploy?
Authors: JJ Hartman
Published: January 2024

The purpose of this paper is to use the psychoanalytic understanding of parapraxes to explore the meaning of apparent errors of memory made by Adolf Hitler in speeches ‘prophesying’ the destruction of European Jews. Because historians have suggested the likelihood that these errors were deliberate, the concept of intentional parapraxes is explored and utilized. Whether deliberate or not Hitler’s errors, it is argued, were a product of a psychological conflict between the wish to take public credit for the mass murder of Jews and the need to keep these crimes secret.
Prevalence of Anxiety and Depression Disorders among People with Diabetes Monitored at the Diabcarmet Center in Thiès (Senegal)
Authors: R Wade Kane , CT Diop , Y Garci , B Bague , I Diagne , A Sylla , K Toure
Published: January 2024

Introduction: The association of diabetes and anxiety-depressive disorders in the same person is problematic. The aim of our work was to evaluate the prevalence of depressive and anxiety disorders in diabetic patients and to highlight the link between anxiety and depressive disorders and diabetes. Methodology: In our transversal and descriptive study, with analytical purposes, we studied 50 cases. The study took place over a period of 4 months (from April to July 2022), focusing on diabetic patients. Results: Our study included 50 patients with a mean age of 55 ±13 years with a range from 30 to 80 years. The sex ratio was 1.17. The prevalence of depressive disorders was 28% and of anxiety disorders 36%. On bivariate analysis, age, sex, and occupation were associated with depression, and only age was associated with anxiety. On multivariate analysis, female gender (OR=33.8; CI=3.89-293.32), age over 50 years (OR=6.71; CI=[1.31; 34.38]), occupational inactivity (OR=15.5; CI=[3.47;69.16]) exposed diabetic patients to an additional risk of depression and only age over 50 years (OR=3.97; CI=[1.07; 14.72]) exposed diabetic patients to an additional risk of anxiety. Conclusion: Our study highlights the importance of screening for anxiety and depression in diabetic patients to prevent complications and their progression.
RAPHE: Um Framework para Gestão de Riscos em Projetos Acadêmicos
Authors:   Universidade de Pernambuco, Barbosa Gilka Rocha , Moura Hermano Perrelli de ,   Universidade de Pernambuco, Gusmão Cristine Martins Gomes de ,   Universidade de Pernambuco
Published: January 2024

Gerenciar riscos é vital para minimizar possibilidades de falhas em projetos e processos organizacionais, induzindo instituições a investir em estratégias para sua adoção; que, embora, predominantes em muitos setores, parecem incipientes no ensino superior. Projetos acadêmicos são fundamentais para expandir o conhecimento, evoluir o ensino e contribuir para o progresso da sociedade. Entretanto, são empreendimentos desafiadores em qualquer contexto e apresentam tendência a falhas que podem impedir seu progresso, desperdiçar recursos e comprometer sua qualidade; uma razão para esses incidentes pode decorrer do não gerenciamento dos riscos presentes no domínio do projeto. Considerando esse cenário e o seu desafio, este trabalho apresenta um framework para gestão de riscos de projetos acadêmicos em Instituição de Ensino Superior, estimulando gestores à sua adoção e integração com os processos corporativos. Para sua realização, os principais componentes metodológicos abordados foram Design Science Research, mapeamento sistemático da literatura, survey, opinião de especialistas e grupo focal.
Modelos de aprendizaje en la transición hacia la complejidad como un desafío a la simplicidad
Authors: Moreno Guaicha Jefferson Alexander , Mena Zamora Alexis Alberto , Zerpa Morloy Levis Ignacio
Published: January 2024

Esta investigación se emprende motivada por la necesidad de desentrañar la progresión delos modelos de aprendizaje, los cuales se han ido adaptando para responder a las demandas de lasociedad en su dinámica constante de fluctuación y transformaciones. El objetivo de este trabajo es examinar de forma sistemática la evolución de los modelos de aprendizaje, destacando los cambios paradigmáticos que han favorecido la transición de enfoques de aprendizaje tradicionales hacia propuestas más innovadoras y transdisciplinarias. Para lograrlo, se lleva a cabo un análisis bibliográfico apoyado en el método hermenéutico para la interpretación contextual de la literatura y los discursos, a fin de desentrañar las complejidades inherentes en la evolución de los modelos de aprendizaje. Los resultados resaltan la influencia limitante del paradigma de la simplicidad en laformación educativa tradicional y la necesidad de un giro hacia la dialogicidad y la colaboración eintegración disciplinaria para avanzar hacia la complejidad. Se concluye argumentando a favor de la adopción del paradigma de la complejidad, abogando por una epistemología transdisciplinariay un enfoque de aprendizaje interestructurante, que permitan el desarrollo humano integral.El reconocimiento de la complejidad humana en la enseñanza y el aprendizaje exige una transformación radical de la educación hacia prácticas más holísticas y transformadoras, esenciales para construir una sociedad equitativa y justa.
Funciones ejecutivas en el aprendizaje de estudiantes universitarios
Authors: Robles Darwin Joaqui , Ortiz Granja Dorys Noemy
Published: January 2024

El artículo aborda el tema de las funciones ejecutivas (FE) y el aprendizaje en estudiantes universitarios. Seconsidera relevante en el momento actual, debido a las diversas afectaciones que se perciben en el rendimientoacadémico luego de la pandemia, siendo cada vez más evidentes los problemas para regular el aprendizaje, la pocacapacidad para buscar información relevante y las dificultades para abstraer aspectos significativos de los datosde interés. Desde aquí se plantea la relevancia de comprender mejor el papel de las FE en el aprendizaje, paralo cual, se inicia con varias definiciones que coinciden en caracterizarlas como aquellas que regulan, controlany mediatizan las actividades superiores y más complejas que realiza el cerebro; se las ubica en el córtex frontaly tienen diversas tasas de desarrollo a lo largo del ciclo vital, desde la infancia hasta la adultez joven, en la quealcanzan su pleno desarrollo. Agregado a esto, se describen los componentes de las FE, puesto que son variadosdependiendo de los autores y su relación con el aprendizaje. El enfoque es eminentemente neuropsicológico, perose realiza un breve diálogo con la filosofía de Heidegger, Hume y Locke. Se concluye con varias sugerencias deposibles actividades que pueden llevarse a cabo para desarrollar estas funciones en los estudiantes.
El papel de las emociones en la sociedad del rendimiento
Authors: Pinedo Cantillo Iván Alfonso
Published: January 2024

En los últimos años, el filósofo surcoreano radicado en Alemania, Byung-Chul Han, viene marcando nuevos derroteros para la reflexión filosófica usando el potencial teórico que surge de la comprensión de las nuevas realidades sociales, políticas y económicas, que marcan esta época de evolución neoliberal y de desarrollo tecnológico, en el contexto de la cuarta Revolución Industrial. Así, temas como la transformación de la biopolítica en psicopolítica se convierten en un punto muy relevante para el análisis de las sociedades actuales y sus derivas. Con este trasfondo de pensamiento, el presente artículo tiene por objetivo sumergirseen las argumentaciones de Han, explorando el papel crucial que desempeñan las emociones en las sociedades del rendimiento, del cansancio y de la infocracia, acudiendo a la metáfora de la “rueda del hámster” como imagen evocadora de las dinámicas de las sociedades actuales. De esta forma, se presenta una perspectiva innovadora de la complejidad del siglo XXI, al adentrarnos en determinados matices del pensamiento de Han, en conexión con la realidad palpable de las emociones, que actúan como el combustible que impulsa a cada individuo en su propia “rueda existencial”. Esta articulación con las experiencias emocionales contribuyede manera significativa a las discusiones contemporáneas acerca de la naturaleza humana en contextos de innovación tecnológica.