bluuebunny/crossref_metadata_2025 huggingface dataset:
Titanium alloys scaffolds for medical applications produced by additive technologies: a review
Authors:   National Research Lobachevsky State University of Nizhny Novgorod, Gryaznov Mihail , Shotin Sergej , Chuvildeev Vladimir , Semenycheva Aleksandra
Published: January 2025

Producing the medical devices by additive technologies is a very actual challenge. The possibility of manufacturing a product using a 3D model based on the results of computed tomography allows to take into account all the individual characteristics of the patient. The review compares the mechanical properties of various materials used for the manufacture of medical devices and considers methods for solving the problem of reducing the Young's modulus in order to approximate the values of the elastic modulus of a metal material and bone. The main types of scaffolds used for the manufacture of implants are analyzed. Modern data on the possibilities of manufacturing scaffolds for medical use by selective laser melting of titanium alloys are presented. It is shown that the mechanical and operational properties of scaffolds strongly depend on the technological parameters of the process, due to the variation of which the technology of selective laser melting allows to control the properties and characteristics of scaffolds at both the macro and micro levels. The current data on the dependence of mechanical and operational properties on the parameters and type of scaffolds are considered. It is shown that due to the flexibility of the technology, it can be used to produce various types of implants. The mechanical properties of products with complex internal geometry made of Ti6Al4V titanium alloy and unalloyed titanium based on scaffold with differing type and geometric parameters are compared. It has been shown that Ti6Al4V titanium alloy products manufactured by selective laser melting can be successfully used in medicine due to the flexibility of the technology, which allows the creation of personalized low-modulus implants and endoprostheses.
Dynamics control of an anthropoid exo-device with five links
Authors:   Branch of the National Research University Moscow Power Engineering Institute in Smolensk, Blinov Alexander , Borisov Andrey , Kaspirovich Ivan ,   Peoples’ Friendship University of Russia, Kirgizbaev Zhuzbaj , Mukharlyamov Robert ,   South-Kazakhstan state pedagogical university
Published: January 2025

The dynamics of a 3D model of an anthropoid exo-device with five controlled absolutely rigid links and hinged joints is considered in the article. The mobility limitations, imposed on the hinges, corresponding to the motor capabilities of the real human musculoskeletal system, differ the proposed model from the earlier considered ones. The angles in the model are not calculated from the vertical or horizontal line, as it is usually introduced in studies on anthropomorphic mechanism simulations. These angles are calculated between the axes of local coordinate systems directed along the links, which makes the model closer to a real prototype where the angles between the links are changed. The control torques applied to the hinges implement motions corresponding to the human musculoskeletal system. The system dynamics is described by Lagrange equations of the second kind, composed in local coordinate systems using rotation matrices. The control torques, implementing the required motion, are calculated by solving the inverse dynamics problems. The obtained results can be used in design of exo-skeletons, anthropomorphic robots, spacesuits, and manipulators.
Buy versus Rent Decision of Office Space among Public Corporations in Ghana
Authors: Owusu-Ansah Anthony , Ayitey Jonathan Zinzi , Tudzi Eric P
Published: January 2025

The primary focus of this study is to assess whether it is more beneficial for public corporations in Ghana to rent or buy office space for their operations.  Previous studies have only examined the factors that affect the decision to either rent or buy office space. The study was carried out through in-depth data mining of all the rented properties of one public corporation in Ghana over the period 2014 to 2019. Based on the information gathered, and drawing inspiration from the NPV investment appraisal technique, the present value of the cost of each of the options was analysed and compared to choose the best option. The paper found among other things that the company’s rented space from 2014 to 2019 grew by 68.5% and at the same time rental value increased by 450%. The present value analysis however reveals that it is more expensive to rent than to buy and this questions why decision makers of this public corporation still increased their rental space over the period. Using a public corporation from Ghana, this paper has extended the discussion on the lease versus buy decision by actually assessing the option that adds more value to the shareholders’ wealth instead of just examining the determinants of the lease versus buy decision. A study of this nature in the context of Ghana is notably non-existent.
Consistency of the GTO complex standards and the standards the general physical preparedness of the federal standard of sports training in boxing
Authors:   Ural Federal University, Yekaterinburg, Russia, Miasnikova T. I. , Vorobyev S. T. ,   Ural Federal University, Yekaterinburg, Russia, Abuda H. ,   Ural Federal University, Yekaterinburg, Russia, Al-Shbul M. ,   Ural Federal University, Yekaterinburg, Russia
Published: January 2025

For the effective search and selection of promising athletes, the standards of the All-Russian Physical Culture and Sports Complex "Ready for Work and Defence (GTO)" are not fully used their synchronization with the standards of general physical training in the federal standards of sports training is insufficient. The purpose of the study is to analyse the consistency of the regulatory requirements of the VFSK GTO and the FSSP in the sport of boxing. The study analysed the current regulatory documents on the problem under consideration: the state requirements of the All-Russian physical culture and sports complex "Ready for Work and Defence"GTO" and the federal standard of sports training in boxing. Because of the analysis of tests of general physical fitness for the enrolment and transfer of male athletes to the next stage of sports training in the federal standard of sports training in boxing their compliance with the tests of the VFSK GTO of the stages corresponding to the age limits of the stages of sports training was revealed. The requirements for the level of general physical fitness of athletes-boxers are gradually becoming more complicated and at the stage of initial training correspond to the level of the bronze badge of the GTO. At the training, stage – the level of the silver badge of the GTO and at the stages of improving sports skills and higher sports skills – the level of the golden badge of the GTO.
Archbishop Wulfstan, his time and works
Authors: Metlitskaya Z. Yu.
Published: January 2025

Publication of a translation of Archbishop Wulfstan’s work “Institutes of Politics” with a brief biographical and source reference.
Some data on the fishery of saffron cod Eleginus gracilis (Tilesius, 1810) off the southeastern coast of Sakhalin Island (Sea of Okhotsk) in 1946–2023
Authors: Ivshina E. R. , Metlenkov A. V.
Published: January 2025

The data on catch dynamics and structure of saffron cod fishery off the southeast coast of Sakhalin Island from 1946 to 2023 are presented. The catch of saffron cod during these years ranged from 0.01 to 13.83 thous. t, and averaged 4.91 thous. t. It is shown that the main fishery is concentrated in Terpeniya Bay and was carried out using twin trawls on spawning aggregations in January. In the post spawning and feeding aggregations, fishing was conducted with saffron cod traps (fyke nets) in the area of the Capes Tikhii and Senyavina in February–March. Amateur fishermen predominantly fished for saffron cod in the same area. Over the long period of exploitation the structure of catches has undergone noticeable changes: before 1970, fishing was carried out exclusively with the use of tyke nets, since the early 1970s the basis of catches is provided by trawl fishing, since the early 2010s, along with industrial development, the volume of catches by recreational fishermen has been increasing. In the last decade, the ratio between catches of commercial fleet, fyke nets and recreational fishery was 89%, 6% and 5%, respectively.
Results of monitoring of harmful microalgae “bloom” complex and conditions of their habitat in the coastal zone of the Avachinsky Gulf and recreational waters of Avacha Bay (East Kamchatka) in 2024
Authors: Lepskaya E. V. , Tepnin O. B. , Pokhodina M. A. , Kolomeytsev V. V. , Morozov T. B.
Published: January 2025

In 2024, data on the species composition and quantitative characteristics of the HAB microalgae complex were obtained not only from standard transects in the Avachinsky Gulf, but also from the bays in the southern part of the transect and from recreational waters, including in vicinity of historical and expected tourist cluster of Petropavlovsk-Kamchatsky. The studies on identification of normative concentrations of the HAB microalgae complex should be continued, including phycotoxin studies both in microalgae samples from Avacha Bay and in hydrobionts. A complex of hydrological data was obtained to describe habitat specifics in examined area during the period of research.
New data on the Fedorovʼs eelpout Lycenchelys fedorovi (Zoarcidae) near the Kuril Islands
Authors: Kurbanov Yu. K.
Published: January 2025

New data on the Fedorovʼs eelpout Lycenchelys fedorovi near the Kuril Islands are presented. It has been established that the species is one of bycatch species on the bottom trawling fishery in the Pacific waters off the Ketoy and Simushir islands. The eelpout was found at the depth range of 300–515 m at the water temperature near the bottom of 1.8–3.0 °C. The catches of this species in examined area evidence in favor of wider geographical distribution along the Kuril Islands.
Pobreza subnacional en México y el Fondo de Aportaciones para Infraestructura Social
Authors: Ríos Cesar Gurrola , Molina Paola Vázquez
Published: January 2025

Resumen La amplia evidencia empírica previa demuestra que las condiciones de pobreza y desigualdad social afectan negativamente el desarrollo y crecimiento económico de la sociedad en general. El Fondo de Aportaciones para la Infraestructura Social (FAIS) se ha destacado como uno de los principales mecanismos del Estado mexicano para combatir la pobreza. Ante la hipótesis de su insuficiente efectividad este estudio se propone analizar el impacto de los distintos componentes del FAIS en los niveles de pobreza de las entidades federativas de México. Utilizando un modelo para datos en panel con observaciones bianuales generadas por instancias del gobierno mexicano se estudia el periodo comprendido entre 2016 y 2022. El análisis realizado demuestra que los recursos destinados a proyectos de agua y saneamiento, así como a urbanización tienen un efecto significativo sobre la tasa de crecimiento del nivel de pobreza en los estados de México. Los resultados del estudio son relevantes para agentes económicos interesados en mejorar las condiciones de vida de la población mexicana a través del diseño, implementación y monitoreo de políticas públicas orientadas a combatir la pobreza en México.
Subnational Poverty in Mexico and the Social Infrastructure Fund
Authors: Ríos Cesar Gurrola , Molina Paola Vázquez
Published: January 2025

Abstract Ample previous empirical evidence demonstrates that conditions of poverty and social inequality negatively affect society’s general development and economic growth. The Fondo de Aportaciones para la Infraestructura Social (FAIS) has stood out as one of the main mechanisms of the Mexican State to combat poverty. Faced with the hypothesis of FAIS’s insufficient effectiveness, this study proposes to analyze the impact of the different components of the FAIS on the poverty levels of the federative entities of Mexico. Using a model for panel data with biannual observations generated by instances of the Mexican government, the period between 2016 and 2022 was studied. The analysis shows that the resources allocated to water and sanitation and in urbanization projects significantly affect the rate of increase in the poverty level in Mexico’s states. The study results are relevant for economic agents interested in improving the living conditions of the Mexican population through the design, implementation, and monitoring of public policies aimed at combating poverty in Mexico.
Strategic planning: unraveling civil servants’ autonomy and motivation through social representations of organizational goals
Authors: Nonato Catheriny Baccaro , Rubens Fontes-Filho Joaquim , Michelotto Flavia de Paiva
Published: January 2025

Abstract This study aims to examine the effects of organizational goal-setting through strategic planning on the motivation of civil servants. Grounded in the social representation theory, the research explores both the core and peripheral systems that shape the social representation of these goals. Data were collected from 324 civil servants through a word recall test, revealing that organizational goal-setting is positively linked to high-quality motivation and the high-performance cycle. The study identifies key elements - such as goals, efficiency, outcomes, planning, and organization - as central to the social representation of organizational objectives. These elements are closely associated with motivation, suggesting that clear organizational goals contribute to employee engagement and performance. The findings also highlight the role of peripheral factors, like transparency, alignment, and well-being, which further influence the perception and implementation of strategic planning. The research concludes that strategic planning, whether based on rational or emergent approaches, positively impacts employee motivation, thereby supporting the effective execution of public sector strategies.
Diphtheria antitoxin treatment: from pioneer to neglected
Authors: Grandière Pérez Lucia , Brisse Sylvain
Published: January 2025

Diphtheria, a severe respiratory infection, was a major killer of children until the early years of the 20th century. Although diphtheria is now largely controlled globally thanks to vaccination, it is still endemic in some world regions and large epidemics can occur where vaccination coverage is insufficient. The pathological effects caused by its main virulence factor, diphtheria toxin, can be diminished by passive transfer of antibodies. Equine diphtheria antitoxin (eDAT), the cornerstone of treatment against toxinic complications of diphtheria, was invented more than 130 years ago, in 1890, and is still in use today. A method to concentrate anti-diphtheria antibodies from hyperimmune equine serum was described in the first issue of Memórias do Instituto Oswaldo Cruz in 1909. On this historic occasion, we present recent knowledge on taxonomic, epidemiological and clinical aspects of diphtheria agents that produce diphtheria toxin, and provide a historical perspective on eDAT treatment, adverse effects, threats on its scarce international supply, and current avenues for alternative therapeutic strategies.
Organic compost in promoting growth and photosynthetic performance of Pereskia aculeata Mill. (Cactaceae) saplings
Authors: Suzigan Nina Machado , Cardoso Gustavo dos Santos , Barbosa Nicole Almeida , Costa Giulianna Carolina Pincela da , Gomes Geovana , Moura Sara Dias , Oliveira Mônica Ellen Regis de , Campos Luiz Fernandes Cardoso , Melo Hyrandir Cabral de , Gonçalves Letícia de Almeida
Published: January 2025

ABSTRACT: Pereskia aculeata, commonly known as ora-pro-nóbis, is a Non-Conventional Food Plant (NCFP) native to Brazil. Considering the limited number of studies on species propagation and the importance of more sustainable practices for small-scale farmers, the objective was to evaluate the growth of P. aculeata saplings cultivated in substrates with different proportions of organic compost. The saplings were obtained by cuttings and cultivated in four distinct substrates, comprising three treatments and one control group. The substrates were prepared from a mixture of ant mound soil and commercial substrate, with the treatments determined by the amount of organic compost added. In the control group, no organic compost was incorporated, while in the other treatments, the compost represented 25, 50, and 75% of the total substrate mass. Mixed linear models were applied to morphological and physiological variables. It was possible to observe that, the higher the amount of organic compost in the substrate, the greater the growth of the shoots that developed from the cuttings, a result reflected primarily in the increased length and number of leaves on the largest branch, and the dry mass of the above-ground part. The rate of net photosynthesis and effective quantum efficiency of Photosystem II also significantly increased with the incorporation of organic compost into the substrate. It can be concluded that the addition of organic compost promoted the growth of P. aculeata cutting saplings, as well as their photosynthetic performance.
Bioaccessibility of phenolic compounds from a wheat beer enriched with alginate-encapsulated wine industry by-product
Authors: Vieira Anna Carolyna Goulart , Silva Genilton Alves da , Tonon Renata Valeriano , Sant’Ana Gizele Cardoso Fontes , Leão Maria Helena Miguez da Rocha , Perrone Daniel , Amaral Priscilla Filomena Fonseca
Published: January 2025

ABSTRACT: Wine industry by-product (WIBP) encapsulated in alginate beads were incorporated to beer to increase antioxidant properties. The phenolic profile, in vitro bioaccessibility and gut metabolism were assessed. Scanning electron micrographs of the beads with WIBP revealed a relatively rough surface with large pores with craters, but without cracks, which ensures the protection of the encapsulated compounds. X-ray diffraction profiles showed the attenuated of the crystalline peaks, indicating the interactions between alginate and Ca2+. The WIPB antioxidant activity was assessed by FRAP (0.13 mmol Fe2+/g WIBP) and TEAC (0.078 mmol Trolox/g WIBP). The phenolic profile of the craft beer was not altered after the immersion of the beads for 60 days, maintaining its six free phenolic compounds (gallic, 3,4-dihydroxyphenylacetic, 4-hydroxybenzoic, 2,4-dihydroxybenzoic, ferulic, and salicylic acids). The phenolic compounds observed in WIBP and not in the craft beer (quercetin, rutin and syringic acids) were only detected after simulated digestion of WIBP beads that had been immersed in the beer, showing that the encapsulation of WIBP with calcium alginate beads protected the phenolic compounds until consumption. Total phenolic content increased after simulated digestion, and after gut fermentation. During this process the phenolic compounds diversity in each digestion step also increased. Therefore, the enrichment of beer with alginate beads containing the WIBP not only increases the content of phenolic compounds ingested by the consumer, but also the bioaccessibility of those compounds in relation to beer without the beads.
Evaluating silver nanoparticles, copper coatings, and zinc oxide nanostructures for antimicrobial medical device applications
Authors: Anandapillai Priyeshkumar Thangavel , Kamali Samudram Manickam , Malathy Vanniappan , Dhairiyasamy Ratchagaraja
Published: January 2025

ABSTRACT The increase in hospital-acquired infections (HAIs) associated with medical devices underscores the need for antimicrobial coatings. This study aims to compare the antimicrobial efficacy, biocompatibility, ion release, and durability of silver nanoparticles, copper coatings, and zinc oxide nanostructures as coatings for medical devices. Coatings were prepared and characterized, with efficacy tested against E. coli and S. aureus via inhibition zone measurements. Silver demonstrated the highest antimicrobial effect, with inhibition zones averaging 90%, while copper and zinc oxide showed moderate efficacy, averaging 80% and 70%, respectively. Biocompatibility, assessed using human fibroblasts in an MTT assay, showed the highest cell viability with zinc oxide, followed by copper and silver. Durability tests under simulated physiological conditions indicated that copper and zinc oxide retained over 90% structural integrity, while silver showed greater degradation. Ion release profiles highlighted silver’s rapid ion release, ideal for short-term antimicrobial activity, while copper and zinc oxide showed steady, sustained ion release. These findings suggest silver’s efficacy for immediate infection control, while copper and zinc oxide offer balanced long-term safety and durability, making them suitable for extended applications in medical devices.
Estimates of genetic parameters and correlations for the breeding of jambu (Acmella oleracea)
Authors: Albuquerque Dalcirlei Pinheiro , Teixeira Davi Henrique Lima , Gonçalves Júnior Deurimar Herênio , Oliveira Larissa Jaina da Silva de , Silva Júnior André Dutra , Véras Guilherme Jordan Souza
Published: January 2025

ABSTRACT Jambu is important nationally and internationally for its dietary and medicinal use, notably for espilanthol. Despite its versatility, breeding work is scarce. This study aimed to evaluate aerial traits and estimate genetic parameters in jambu accesses to support a breeding program. The experiment was conducted in a greenhouse at the Universidade Federal da Amazônia, Capitão Poço campus. The treatments included 172 genotype clones from seven municipalities in the Northeast mesoregion, obtained from a farmer’s market. Seedlings were cloned and transplanted after three weeks. The design was completely randomized with three replications and 20 cm × 20 cm spacing. At harvest, genotypes were manually removed and taken to the Campus Agricultural Engineering Laboratory to measure 17 aerial part traits. Variance components, genotypic values, and genetic parameters were estimated using REML/BLUP methodology. Genetic and phenotypic correlation matrices and selection gains of 75, 50, and 25% of the genotypes were calculated. Significant genetic variance and high heritability were observed for traits such as plant fresh mass, leaf fresh mass, and stem fresh mass, which are favorable for selection. Indirect selection can enhance leaf and capitula mass without significantly increasing stem diameter. Selecting 50% of the population yields good selection gains without compromising genetic variability.
Reliability of RC cross-sections designed for simple bending according to the 2014 and 2023 versions of NBR 6118 code
Authors: Machado Gabriel Martinez , Campos Filho Américo , Real Mauro de Vasconcellos
Published: January 2025

Abstract This article presents a comparative study of the reliability of reinforced concrete (RC) cross-sections subjected to simple bending, designed at the ultimate limit state and following the recommendations of the 2014 and 2023 versions of the Brazilian code NBR 6118. The analyses are based on reliability theory by implementing the FORM algorithm on three rectangular cross-section configurations, considering three constant values of dimensionless bending moments and five different concrete strength classes between C30 and C90. Although the elements designed by NBR 6118:2023 have shown additions of up to 19% in the total steel cross-section area as a consequence of the implementation of the strength reduction factor ( η c), the results show no significant improvements in reliability compared to the 2014 previous version of NBR 6118.
Análise da competitividade brasileira no mercado mundial de limão e lima ácida e de seus principais competidores no mercado mundial
Authors: Del Fiori Diogo , Monteiro Tiago Barros , Sarmiento Ramirez Yunier , Almeida Neuler André Soares de , Neves Salomão Franco
Published: January 2025

Resumo O objetivo deste estudo é analisar a evolução da competitividade brasileira e de seus principais competidores no mercado mundial de limões para o período de 2002 a 2022. Para tal, aplicou-se os índices de Vantagem Comparativa Revelada (VCR), Posição Relativa de Mercado (PRM), Taxa de Cobertura (TC) e o modelo de Constant Market Share (CMS). Os resultados de VCR, PRM e TC são positivos, evidenciando competitividade e relevância, sendo um produto ponto forte. Entrementes, em 2022, os resultados ficaram abaixo dos encontrados para o México, a África do Sul, a Espanha, a Turquia e a Argentina, sendo a África do Sul detentora de maior competitividade e o México de maior importância. O CMS indica, no Brasil e na África do Sul, que a fonte de crescimento das exportações ocorreu majoritarimente em virtude do efeito competitividade, sendo que a África do Sul foi a maior beneficiária desse efeito, ao passo que para o México foi o efeito destino das exportações e para a Espanha e a Argentina, crescimento mundial.
Morphophysiology of cucumber under saline nutrient solutions and salicylic acid application in hydroponic system
Authors: Dantas Maíla V. , Sá Valeska K. N. O. de , Lima Geovani S. de , Soares Lauriane A. dos A. , Gheyi Hans R. , Silva Luderlândio de A. , Nobre Reginaldo G. , Sousa Alesia A. de , Azevedo Carlos A. V. de
Published: January 2025

ABSTRACT In conventional systems, the use of saline water makes vegetable production unfeasible, so hydroponic cultivation is a promising alternative in semi-arid areas, as it minimizes socioeconomic impacts. An alternative for mitigating salt stress effects on plants is the application of salicylic acid. The objective of this study was to evaluate the effect of foliar application of salicylic acid on the physiological aspects and growth of ‘Hiroshi’ japanese cucumber under saline nutrient solutions in a hydroponic system. The study was carried out in a greenhouse. The hydroponic system used was the Nutrient Film Technique - NFT. Treatments consisted of four values of electrical conductivity of the nutrient solution - ECns (2.1, 3.0, 3.9, and 4.8 dS m-1) and four concentrations of salicylic acid - SA (0, 1.8, 3.6, and 5.4 mM), distributed in a completely randomized design in split plots, with ECns levels considered the plots and SA concentrations considered the subplots, with four replicates. Growth, gas exchange, photosynthetic pigments, relative water content, and electrolyte leakage in the leaf blade were evaluated. Salicylic acid at concentrations ranging from 3.7 to 4.7 mM increased stomatal conductance and carotenoid synthesis, under ECns of 2.1 dS m-1. ECns above 2.1 dS m-1 reduced gas exchange, photosynthetic pigment content, relative water content, and growth of Japanese cucumber plants, at 23 days after transplanting.
Foliar application of salicylic acid mitigates water deficit in guava
Authors: Roque Iara A. , Soares Lauriane A. dos A. , Lima Vera L. A. de , Sousa Valéria F. de O. , Lima Geovani S. de , Gheyi Hans R. , Dantas Maila V. , Ferreira Jean T. A. , Torres Rafaela A. F. , Silva Smyth T. de A.
Published: January 2025

ABSTRACT Fruit growing is an activity of great relevance for agribusiness in Brazil, with emphasis on guava. However, water deficiency is one of the limiting factors for plant productivity, so the use of phytohormones such as salicylic acid has been employed as a strategy to mitigate the effects of water deficit. The objective of this study was to evaluate the foliar application of salicylic acid as an attenuator of water deficit in guava genetic materials. The experimental design adopted was randomized blocks, in a 2 × 2 × 5 factorial scheme, considering two water regimes (irrigation depths equivalent to 50 and 100% of the reference evapotranspiration - ETr), two guava genetic materials (‘Crioula’ and ‘Paluma’) and five concentrations of salicylic acid (0, 1.2, 2.4, 3.6, and 4.8 mM). Foliar application of salicylic acid at a concentration of 2.4 mM promoted growth, gas exchange, and chlorophyll a fluorescence of ‘Crioula’ guava under irrigation with 50% ETr. Water deficit reduced growth, gas exchange, chlorophyll contents, and chlorophyll a fluorescence of guava. Among the genetic materials, greater growth, gas exchange, chlorophyll contents, and chlorophyll a fluorescence was observed in ‘Paluma’ compared to ‘Crioula’ under irrigation with 50% ETr without foliar application of salicylic acid. Foliar application of salicylic acid at a concentration of 1.2 mM increases leaf area, number of leaves, and total dry mass in the ‘Crioula’ genetic material under 50% ETr.
Effect of different intensities of inspiratory muscle exercise on cardiac autonomic control in the post-exercise recovery in healthy adults: a controlled and randomized study
Authors: Souza Pedro Lima , Moreira Leila Dal Poggetto , Silva Lilian Pinto da , Weiss Vinicius Faria , Mira Pedro Augusto Carvalho , Trevizan Patrícia Fernandes , Laterza Mateus Camaroti , Martinez Daniel Godoy
Published: January 2025

ABSTRACT This study aimed to investigate the effect of different intensities of Inspiratory Muscle Exercise (IME) on cardiac autonomic control during the period of post-exertion recovery in healthy adults. Thus, an experimental, controlled, and randomized study was conducted with 15 men aged from 18 to 40 years, including sedentary and healthy individuals. Participants underwent four IME sessions: a sham session, followed by sessions with 30%, 40%, and 60% of maximal inspiratory pressure. Pulse intervals were recorded using digital infrared photoplethysmography to obtain heart rate (HR) values. Measurements included HR, interbeat interval, standard deviation of all normal RR intervals (SDNN), root mean square of successive differences between adjacent normal RR intervals (RMSSD), percentage of adjacent RR intervals greater than 50ms (pNN50) (time domain), total power, power of low-frequency spectral bands (LF), and power of high-frequency spectral bands (HF) (ms²), LF and HF (n.u.), and LF/HF (frequency domain). These measures were assessed simultaneously for 10 minutes at rest and during recovery period (15, 30, 45, and 60 minutes). Two-way analysis of variance was used, considering a 5% significance level. We observed that RMSSD and pNN50 showed higher values compared to baseline (Time Effect: P=0.004; P<0.01, respectively). No differences were found in HRV measures in the frequency domain (Time Effect: P>0.05). Additionally, there was no difference in the comparison between intensities for all HRV measures (Session Effect: p>0.05). We conclude that, regardless of the applied load, there is a similar increase in parasympathetic cardiac autonomic modulation indices in the post-IME recovery period in healthy adults.
Avaliação da funcionalidade e incapacidade de puérperas: um estudo baseado na Classificação Internacional de Funcionalidade, Incapacidade e Saúde
Authors: Moraes Marina da Silva , Feitoza Francisco Farias , Padilha Juliana Falcão
Published: January 2025

RESUMO O puerpério inicia logo após a dequitação da placenta, ocorrendo modificações locais e sistêmicas no corpo da mulher. Essa transição está associada com a funcionalidade da mulher. A Classificação Internacional de Funcionalidade, Incapacidade e Saúde (CIF) fornece a base para aplicação do modelo biopsicossocial. O estudo investigou a funcionalidade e incapacidade de puérperas no período puerperal imediato, tardio e remoto. Trata-se de um estudo transversal observacional de caráter quantitativo. Aplicou-se uma ficha de anamnese com dados sociodemográficos, antropométricos e obstétricos e com perguntas relacionadas à CIF. Para investigar a incapacidade, aplicou-se o WHODAS 2.0 de 36 questões autoadministrado. As variáveis qualitativas foram descritas por distribuição de frequência e percentuais, e as quantitativas com estatística descritiva. Para comparação de grupos, aplicaram-se os testes de Kruskal-Wallis e post hoc de Dunn com 5% de significância. Participaram do estudo 82 puérperas. Obteve-se 32 categorias da CIF, sendo estrutura e função a mais frequente. No WHODAS 2.0, na amostra total e para cada momento do puerpério, o domínio (D5) – Atividades de Vida – obteve maior comprometimento. Ao comparar os domínios com momentos do puerpério, o imediato apresentou menor incapacidade, diferenciando-se do remoto e tardio para cognição (10,42 – p=0,0365) e participação (18,75 – p=0,0197). No domínio (D2) – Mobilidade –, ocorreu diferença entre o puerpério tardio e o remoto, sendo que o remoto apresentou menor incapacidade (17,50 – p=0,0212). A partir da diversidade de itens preenchidos na CIF, conclui-se que a funcionalidade pode ser afetada no puerpério, podendo apresentar incapacidade em todos os momentos.
From ‘Humiliation’ to Radical Beliefs: Navigating political subjectivities and ideological shifts in trajectories of radicalization.
Authors: Silva Wagner Guilherme Alves da
Published: January 2025

Abstract This essay delves into the analysis of the radicalization trajectory of supporters of the Early and Preventive Treatment (TPP), contextualizing it within the Brazilian political and social scenario during the 2023 elections. The focus lies on practices, both discursive and non-discursive, influencing contemporary adherence to far-right ideologies. In particular, the paper highlights how the far-right establishes effective communication with society, exploring Sonia’s central role in becoming an active part of a discursive community. The narrative examines her quest for knowledge, often grounded in fake news and studies without scientific review, related to the TPP. The article explores the dynamics between social inclusion, information-seeking, and the legitimization of identity, emphasizing the importance of situational discomfort in constructing the ethnographic project. The adopted approach highlights local practices as authentic political theories and underscores the need to understand how extreme ideologies are normalized and internalized by social subjects, providing a robust conceptual foundation for analyzing the complexities of radicalization and identity formation in the Brazilian political context.
Más allá de los desechos: un ensayo fotográfico en el basural a cielo abierto de Oberá, Misiones
Authors: Goldemberg Ana
Published: January 2025

Resumen Este ensayo fotográfico tiene como objetivo retratar formas de vida y resiliencia en el basural a cielo abierto de la ciudad de Oberá, Misiones, en diálogo con algunas ideas de Anna Tsing, Isabelle Stengers y Donna Haraway. Presento aquí imágenes que, desde el sentido común, parece improbable encontrar en medio de la basura y de los escombros. Sin embargo, nos permiten reflexionar acerca de las colaboraciones multiespecies y las posibilidades de supervivencia en un ambiente contaminado. Se trata, pues, de cultivar una forma de observar, atenta y sensible, y de transmitirla siguiendo lo que Haraway denomina “art-science activism”.
Modelación matemática y etnomatemática: una revisión sistemática de una línea de investigación en desarrollo
Authors: Sepúlveda-Herrera Carol , Huincahue Jaime
Published: January 2025

Resumen La modelación matemática y la etnomatemática son actualmente dos temas que generan gran interés en el área investigativa de la educación matemática, reflejado en el número de estudios científicos que tratan aquellos tópicos. El objetivo de este estudio es realizar una revisión sistemática en el periodo 2000-2023, que permita conocer las características de los manuscritos que se relacionan con los conceptos de modelación matemática y etnomatemática, además de sus alcances con el concepto de formación de profesores. La metodología utilizada consideró los lineamientos Prisma 2020, considerando las bases de datos Scopus y WoS, donde luego de realizar las búsquedas, se obtuvieron 55 artículos, que al aplicar los criterios de inclusión y exclusión quedaron un total de 37 artículos, donde luego de ser analizados se respondió a cuatro preguntas descriptivas e interpretativas. Los resultados muestran que en Brasil e Indonesia corresponden las filiaciones de los autores que tienen mayor número de publicaciones, identificando aspectos metodológicos y categorías de investigación de los estudios. Así también, con respecto a la presencia de un artículo en formación de profesores, se entiende que es una relación incipiente, en desarrollo y con una clara necesidad de estudios sobre la educación del profesor.
Experimentalist Governance in Bioeconomy: Insights from the Brazilian Amazon
Authors: Pinsky Vanessa Cuzziol , Marcovitch Jacques , Val Adalberto Luis
Published: January 2025

ABSTRACT Objective: understand whether subnational processes to develop bioeconomy policy are integrated with local implementation efforts in the state of Amazonas. Theoretical framework: experimentalist governance. Methods: deductive content analysis was conducted in three phases: open and axial coding and integration of theory. Results: a nascent system of experimentalist governance to foment bioeconomy is taking shape. However, the potential for experimentalism to improve policy reforms is far from realized due to policy coordination problems, incipient collective action among actors, and the absence of incentives to promote experimentation and systematic learning from local experiences. The quintuple helix innovation model is a promising approach to engage different actors in the design and implementation of bioeconomy experiments, where the state actor assumes central coordination and local actors implement. Political will and long-term strategy based on metrics and a system for review are essential. Conclusion: the experimentalist problem-solving approach could have a significant impact in the Amazonian bioeconomy by demonstrating and replicating the successful initiatives to generate useful local policy experiments, learning, and promoting socioeconomic opportunities with environmental conservation. Policy experimentation can be a new viable alternative to move state and non-state actors from conflict based on divergent economic interests to a cooperative means to promote socioeconomic development by demonstrating and escalating success cases that can foster policies and opportunities.
Marketing de Contenidos en Instagram y su impacto en el eWOM en el Turismo Sostenible Amazónico
Authors: Espinal Edwin Arango , Andrade Carlos Fernando Osorio , Pastrana Carlos Alberto Arango
Published: January 2025

RESUMEN Objetivos: analizar cómo diferentes elementos del marketing de contenidos en Instagram influyen en el eWOM (medido a través de likes y comentarios) para hoteles sostenibles en la Amazonía. Marco teórico: el estudio se fundamenta en la teoría de la riqueza de medios y la teoría de usos y gratificaciones para examinar la efectividad de las estrategias de marketing de contenidos en redes sociales. Método: se realizó un análisis de contenido de 1,000 publicaciones de Instagram de diez hoteles sostenibles amazónicos, seguido de un modelo de regresión binomial negativa. Resultado: los videos generan más engagement que las imágenes, validando la teoría de la riqueza de medios. Las estrategias enfocadas en biodiversidad e instalaciones de descanso son efectivas para generar likes, mientras que el contenido informativo y sobre sostenibilidad fomenta más comentarios. El contenido cultural mostró un impacto negativo inesperado en el engagement. Conclusiones: el estudio contribuye a la literatura al proporcionar recomendaciones específicas sobre la optimización del marketing de contenidos en el contexto único del turismo sostenible amazónico, un área poco explorada en investigaciones sobre marketing digital. Los hallazgos validan las teorías de riqueza de medios y usos y gratificaciones en este contexto específico.
Neonatal mortality of live births with congenital diaphragmatic hernia in São Paulo State, Brazil: Failure of care?
Authors: Marinonio Ana Sílvia Scavacini , Miyoshi Milton Harumi , Nobre Daniela Testoni Costa , Sanudo Adriana , Areco Kelsy Catherina Nema , Kawakami Mandira Daripa , Balda Rita de Cássia Xavier , Konstantyner Tulio , Oliveira Carina Nunes Vieira e , Bandiera-Paiva Paulo , Freitas Rosa Maria Vieira de , Teixeira Monica La Porte , Waldvogel Bernadette Cunha , Kiffer Carlos Roberto Veiga , Almeida Maria Fernanda Branco de , Guinsburg Ruth
Published: January 2025

ABSTRACT Objective: The aim of this study was to analyze if the healthcare organization of perinatal care and availability of referral neonatal intensive care units (NICU) impacted congenital diaphragmatic hernia (CDH) neonatal mortality in the period 2004–2020. This study analyzed the spatial distribution of neonatal deaths of live births with CDH in São Paulo State, Brazil, and its association with NICU beds’ availability. Methods: Population-based study of all live births in São Paulo State from mothers residing in the same State, from 2004 to 2020. CDH definition was based on WHO-ICD-10 codes; CDH-associated neonatal death was defined as death up to 27 days after birth of infants with CDH. The distribution of CDH-associated neonatal mortality (per 10,000 live births) and NICU beds’ availability (≥1 or not available) was mapped, and their association was evaluated by the Mann–Whitney test. Results: Among 10,246,686 live births, there were 1378 CDH-associated neonatal deaths across 124/645 (19.2%) municipalities of the State. The median CDH-associated neonatal mortality rate in municipalities with NICU beds was 1.22 (95%CI 0.99–1.51), similar to that found in municipalities with no NICU beds (1.40; 95%CI 1.15–1.67; p=0.224). Conclusions: CDH-associated neonatal deaths were spread throughout São Paulo State with no difference in CDH-associated neonatal mortality rates between municipalities with and without NICU beds available. These findings suggest the necessity of implementing regionalization strategies for CDH perinatal care in the State.
Is there a difference in the results of the video head impulse test in patients with a nosological diagnosis of Ménière’s Disease and Vestibular Migraine?
Authors: Aguiar Maria Carolaine Ferreira , Nascimento Gizele Francisco Ferreira do , Costa Ana Paula Machado , Ferreira Lidiane Maria de Brito Macedo , Diniz Júnior José , Mantello Erika Barioni
Published: January 2025

ABSTRACT Purpose To compare vestibulo-ocular reflex (VOR) gain values, gain symmetry between the semicircular canals (SCCs), and saccadic parameters in patients with a nosological diagnosis of Ménière’s disease (MD) and vestibular migraine (VM). Methods Observational, descriptive, cross-sectional, retrospective study, approved by the Research Ethics Committee, under evaluation report number 4.462.519. The study was based on medical record analysis of individuals who underwent the Video Head Impulse Test (vHIT). The sample included medical records of 33 patients, divided into two groups – G1, 18 patients with a nosological diagnosis of VM; G2, 15 patients with MD. The study collected information on age, sex, nosological diagnosis, symptoms, associated comorbidities, and vHIT results. Student's t-test and the linear regression model statistically analyzed the data. The significance level was set at 0.05 (95%). Results Females predominated (75.76%), with a mean age of 50.18 years. There was a predominance of normal VOR gain in the VM group (44.44%) and vestibular hypofunction in the MD group (40%). There was no significant difference between the groups’ mean gain per SCC, nor between the groups’ right and left SCCs. G1 had a higher percentage of evident saccades and saccadic dispersion. Conclusion Although there was no significant difference in VOR gain in the vHIT between the groups, there was a predominance of vestibular hypofunction in the MD group and normal results in the VM group.
Existe diferença nos resultados do vídeo teste do impulso cefálico em pacientes com diagnóstico nosológico de Doença de Ménière e Migrânea Vestibular?
Authors: Aguiar Maria Carolaine Ferreira , Nascimento Gizele Francisco Ferreira do , Costa Ana Paula Machado , Ferreira Lidiane Maria de Brito Macedo , Diniz Júnior José , Mantello Erika Barioni
Published: January 2025

RESUMO Objetivo Comparar os valores de ganho do reflexo vestíbulo-ocular (RVO), simetria de ganho entre os canais semicirculares (CSCs) e parâmetros sacádicos em pacientes com diagnóstico nosológico de doença de Méniere (DM) e migrânea vestibular (MV). Método Estudo observacional, descritivo, transversal e retrospectivo, aprovado pelo Comitê de Ética em Pesquisa, sob parecer: 4.462.519. O estudo foi realizado a partir da análise de prontuários de indivíduos que realizaram o vídeo teste do impulso cefálico (vHIT). Foram incluídos prontuários de 33 pacientes, divididos em dois grupos: G1, 18 pacientes com diagnóstico nosológico de MV, G2, 15 pacientes com diagnóstico de DM. Foram coletadas informações sobre idade, gênero, diagnóstico nosológico, sintomas, comorbidades associadas e resultados do vHIT. Os dados obtidos foram analisados estatisticamente, por meio do Teste t-student e Modelo de regressão linear. Foi adotado o nível de significância de 0,05 (95%). Resultados O sexo prevalente foi o feminino (75,76%), com idade média de 50,18 anos. Observou- se predomínio do ganho do RVO dentro dos padrões de normalidade para o grupo MV (44,44%) e da hipofunção vestibular para o grupo DM (40%). Não houve diferença significativa entre a média de ganho por CSC, dos grupos, nem entre os CSCs direito e esquerdo, dos grupos. Quanto aos parâmetros sacádicos, o G1 apresentou maior percentual de sacadas evidentes e da dispersão sacádica. Conclusão Embora não se tenha encontrado diferença significativa entre o ganho do RVO no vHIT entre os grupos, observou-se predomínio da hipofunção vestibular no grupo DM e de resultados dentro da normalidade no grupo MV.
Psychometric properties of the Oxford Happiness Questionnaire-Short Form in Spanish Undergraduates,
Authors: Rubio-Belmonte César , García-Alandete Joaquín
Published: January 2025

Abstract The Oxford Happiness Questionnaire-Short Form (OHQ-SF) is an 8-item scale that assesses happiness, and it has been adapted for use with Spanish individuals. However, no study has examined its structural validity and gender invariance in young adults. To check this, the psychometric properties of the OHQ-SF were analyzed in a sample of 625 Spanish undergraduates (175 men, 28%, and 450 women, 72%), with an age range between 18 and 29 years (M = 20.80, SD = 2.40). Spanish adaptations of the OHQ-SF, Purpose In Life Test-10 Items (PIL-10), Satisfaction With Life Scales (SWLS), and Seeking of Noetic Goals (SONG) were used. The OHQ-SF showed an internal consistency of .66, a composite reliability of .68, an average inter-item correlation of .21, and total-item correlations ranging from .27 to .52 (M = .36). Confirmatory procedures revealed an excellent fit for the OHQ-SF (SBχ2(20) = 22.387, p = .320, CFI = .996, TLI = .995, RMSEA = .014), and configural, metric, scalar, and strict invariance across gender groups. The difference between the women’s mean (36.40, SD = 5.3) and the men’s mean (36.27, SD = 5.09) in the OHQ-SF was not significant (t(623) = -.285, p = .776). Correlations between the OHQ-SF, the PIL-10, the SWLS, and the SONG-8 were strong and significant (ρ = .61, p < .001; ρ = .64, p < .001; and ρ = -.38, p < .001 respectively). These results confirm that the Spanish version of the OHQ-SF, used with Spanish undergraduates in the present study, is a reliable and valid scale.