bluuebunny/crossref_metadata_2025 huggingface dataset:
Similarity Regulation and Calibration Alignment for Weakly Supervised Text-Based Person Re-Identification
Authors: Fu Ao , Zhao Jiaqi , Zhou Yong , Du Wenliang , Yao Rui , El Saddik Abdulmotaleb
Published: January 2025

Traditional text-based person re-identification relies on identity labels. However, it is impossible to annotate large datasets, since identity annotation is expensive and time-consuming. Weakly supervised text-based person re-identification, where only text-image pairs are available without annotation of identities, is very practical in real life. While dealing with the weakly supervised person re-identification, two issues should be strengthed, i.e., alignment caused by different modal, and cross-modal matching ambiguity caused by the lack of identity labels. In this paper, we propose a Similarity Regulation and Calibration Alignment (SRCA) framework, which consists of two unimodal encoders for images and text respectively and a multi-modal encoder for the masked language modelling task. Firstly, a Similarity Regulation (SR) strategy is proposed to relax the strict one-to-one constraints for the local similarities between different pairs by introducing a novel soft objective. The soft objective can adjust hard objectives to achieve soft cross-modal alignment by establishing a many-to-many relationship between two modalities. Secondly, the Calibration Alignment (CA) module is proposed to improve intra-class compactness by modelling pseudo-label assignment as optimal transport. The ambiguity of cross-modal matching can be reduced by aligning features and pseudo-labels of different modalities and gradually calibrating the distribution of pseudo-labels. Experimental results show that our method has achieved obvious advantages compared with existing methods, and also demonstrated competitive performance compared with fully supervised methods.
Automatic Generation of Fast and Accurate Performance Models for Deep Neural Network Accelerators
Authors: Lübeck Konstantin , Jung Alexander , Wedlich Felix , Müller Mika , Peccia Federico , Thömmes Felix , Steinmetz Jannik , Biermaier Valentin , Frischknecht Adrian , Palomero Bernardo Paul , Bringmann Oliver
Published: January 2025

Implementing Deep Neural Networks (DNNs) on resource-constrained edge devices is a challenging task that requires tailored hardware accelerator architectures and a clear understanding of their performance characteristics when executing the intended AI workload. To facilitate this, we present an automated generation approach for fast performance models to accurately estimate the latency of a DNN mapped onto systematically modeled and concisely described accelerator architectures.

Using our accelerator architecture description method, we modeled representative DNN accelerators such as Gemmini, UltraTrail, Plasticine-derived, and a parameterizable systolic array. Together with DNN mappings for those modeled architectures, we perform a combined DNN/hardware dependency graph analysis, which enables us, in the best case, to evaluate only 154 loop kernel iterations to estimate the performance for 4.19 billion instructions achieving a significant speedup. We outperform regression and analytical models in terms of mean absolute percentage error (MAPE) compared to simulation results, while being several magnitudes faster than an RTL simulation.
Scalable and High-Performance Large-Scale Dynamic Graph Storage and Processing System
Authors: Wang Rui , Zong Weixu , He Shuibing , Li Yongkun , Xu Yinlong
Published: January 2025

Existing in-memory graph storage systems that rely on DRAM have scalability issues because of the limited capacity and volatile nature of DRAM. The emerging persistent memory (PMEM) offers us a chance to solve these issues through its larger capacity and non-volatile characteristics. However, simply adapting existing DRAM-based graph storage systems to PMEM would result in inefficient PMEM stores and accesses, including high read and write amplification to PMEM, imbalanced work division for PMEM accesses, and costly remote PMEM access across NUMA nodes. These issues severely limit the performance of large graph processing.

In this article, we aim at achieving scalable and high-performance graph processing in PMEM. We first propose an
XPLine-friendly graph storage model
that uses vertex-centric graph buffering, hierarchical vertex buffer managing, and in-place vertex block merging to optimize PMEM graph storage. Furthermore, we develop a
scalable graph processing model
that leverages multi-threaded work dividing and NUMA-friendly graph accessing to optimize PMEM graph accesses. Based on these techniques, we implement
XPGraph
, a PMEM-based graph storage system for large-scale evolving graphs, and several variants for different system settings. Our experiments demonstrate that
XPGraph
surpasses the state-of-the-art in-memory graph storage system on a PMEM-based system by 3.07× to 4.99× in update performance and up to 5.87× in query performance, and performs much better in highly parallel multi-threaded scenarios.
Evaluating the Psychological Implications of the COVID‐19 Pandemic Among Healthcare Workers: A Cross‐Sectional Study
Authors: Hamza Wafaa S. , Almutairi Ali Ghazi , Ali Lamiaa A.
Published: January 2025

Background and Aim: Healthcare workers (HCWs) faced challenges due to COVID‐19 pandemic, which had a short‐term and long‐term effects on their psychological health. The study aimed to assess the long‐term effect of the pandemic on HCWs’ health.

Methods: A cross‐sectional study was conducted to measure the psychological outcome (insomnia, depression, and anxiety), their associations with COVID‐19 pandemic, and the possible predictors. Validated scales were the tools of the study: insomnia severity index (ISI), Patient Health Questionnaire (PHQ‐9), and generalized anxiety disorder (GAD‐7). Three hundred fifty‐seven participants were recruited through an online survey. Analysis done using forward stepwise linear regression.

Results: 54.3% were younger than 40 years, 83.2% were married, and females represented 63.3%. Nurses comprised 47.3%, followed by doctors or dentists (25.5%). About 74.8% worked at general hospitals. The prevalence of clinical insomnia, moderate to severe levels of depression, and anxiety were 14.3%, 10.6%, and 9.0%, respectively. Significantly higher levels of anxiety and depression were detected among females and HCWs with psychological problems. Besides, more depression was observed among participants who experienced the death of family members or friend due to COVID‐19. Insomnia was more prevalent among HCWs who had confirmed COVID‐19, and higher anxiety was reported by those who needed hospitalization (p  < 0.05). The common significant predictors were included history of mental health problem, history of COVID‐19, and the death of family member or friend due to COVID‐19.

Conclusion: COVID‐19 pandemic caused long‐term psychological burden among HCWs. Further longitudinal researches are necessary to explore specific interventions to support HCWs’ mental health.
Mechanical and Frictional Behavior of Jute‐Textile‐Reinforced Polymer Composites With Matrix Modification
Authors: Tabassum Farhin , Asekin M. R. , Salim Kaiser M. , Reaz Ahmed S.
Published: January 2025

The mechanical and frictional behaviors of jute‐textile‐reinforced polymer composites have been investigated experimentally under the influence of matrix modification and postprocessing thermal treatments. Three different matrix modifiers, namely, carbon, silicon, and aluminum powders are considered for the modification of polymeric material used in the sandwich structured biodegradable jute‐textile‐reinforced composites. The modified composites are then subjected to post‐processing thermal treatments isochronally at temperatures within the range of 0–250°C. Inclusion of carbon, silicon, and aluminum powders into the polyester resin leads to significant changes in the performance of the composite materials in terms of hardness, tensile, as well as wear and frictional properties. More specifically, the aluminum powders show the most promising potential to improve the properties of polyester‐jute composites compared with those of silicon and carbon powders. Moreover, at the postprocessing temperature of 125°C, all the modified composite samples show their best performances in terms of hardness, strength, modulus, wear rate, and friction coefficient, which is eventually verified to be the optimum postprocessing temperature for the composites of the present type. The pin‐on‐disc wear study shows that under constant and varying load conditions, the coefficient of friction of the composite is found to be relatively higher for the case of aluminum‐powder modifier compared with those of silicon and carbon power modifiers. The results of optical microstructures, scanning electron microscopic (SEM) images, and energy dispersive x‐ray (EDX) spectra are found to be in support of the results observed through direct measurements. A quantitative comparison of the measured results verifies the relative improvement of the major mechanical and frictional properties of the composites, which, in turn, verifies the effectiveness of the selective matrix modifiers in conjunction with post‐thermal treatments.
On the Maximum SC Index of Chemical Unicyclic Graphs
Authors: Cheng Hui-Yan , Chen Lei , Alyar Sattar
Published: January 2025

The sum‐connectivity (SC) index of a graph is defined as , where Θμ denotes the vertex degree of μ in . In this paper, the fourth largest value of SC index for the chemical unicyclic graphs of order n ≥ 7 is determined.
Enhancing Empathy and Self‐Awareness in Psychiatric Nursing Students Through High‐Fidelity Simulation: A Quasi‐Experimental Study
Authors: Abdalrahim Asem
Published: January 2025

Background: Positive patient outcomes result from increased empathy and self‐awareness. One of the strategies utilized to improve empathy and self‐awareness was a high‐fidelity simulation (HFS).

Purpose: This study aimed to see how HFS impacted students’ empathy and self‐awareness before and after HFS intervention in Jordanian university psychiatric nursing classes.

Methods: A quasi‐experimental research with a pretest–posttest design was conducted on 235 undergraduate students registered in a psychiatric course at Al al‐Bayt University’s Faculty of Nursing from September to December 2023. The HFS was held in the form of 5 weeks’ scenarios. The study data collection tools included a demographic questionnaire, The Empathy Toward the Mentally Ill Scale and the Self‐Consciousness Scale: A Revised Version. The data were analyzed using descriptive statistics (frequency, mean, and standard deviation), and inferential statistics (t‐test).

Results: Before and after the HFS intervention, a significant difference in students′ empathy (t234 = −26.90, p < 0.001) and self‐awareness (t234 = −19.70, p < 0.001) was found.

Conclusions: HFS interventions, particularly in psychiatric courses, can be used to close the gap in nursing education and enhance traditional clinical learning.
New features in a rare monogenic obesity: CPE DEFICIENCY
Authors: Canoruc Emet Dicle , Helhel Ekim , Portakal Oytun , Gonc Nazlı
Published: January 2025

Introduction: CarboxypeptidaseE (CPE) is an enzyme involved in the neuropepetides/hormones processing. Its deficiency is associated with endocrinopathies comparable to those caused by proprotein convertase1/3(PC1/3) deficiency. In this case report we expand the clinical features of CPE deficiency by examining the index case’s clinical/laboratory results, which are also indicative of PC1/3 deficiency.
Case presentation: The index case, 13.5 years old, had obesity, central hypothyroidism, developmental delay, hypogonadotropic hypogonadism, enuresis. A four-hour oral-glucose-tolerance-test revealed glucose intolerance with a partial insulin deficiency and postprandial hypoglycemia. Proinsulin level was high. Partial central diabetes insipidus was verified with a water-deprivation-test. Administration of desmopressin successfully alleviated the symptoms of polyuria-polydipsia and enuresis. Brain-derived-neurotrophic-factor level, which might be linked to ID, was low. The eight-month-old sibling had central hypothyroidism and hypotonicity,but has not yet developed obesity.
Conclusion: Patients with CPE deficiency should undergo evaluation not only for hypothyroidism and hypogonadism but also for glucose and water metabolism disorders. The presentation of new cases may lead to the discovery of novel findings, and the identification of other pituitary hormone deficiencies.
Real-World Safety and Effectiveness of Vosoritide in Children with Achondroplasia: French Early Access Program
Authors: Cormier-Daire Valérie , Edouard Thomas , Isidor Bertrand , Mukherjee Swati , Pimenta Jeanne M. , Rossi Massimiliano , Schaefer Elise , Sigaudy Sabine , Baujat Geneviève
Published: January 2025

Introduction: Vosoritide is the first approved treatment for achondroplasia, a rare genetic disorder that results in disproportionate short stature. In clinical trials, vosoritide has shown a positive safety profile and increased height in children with achondroplasia. This paper shares the organizational structure, initiation, follow-up protocol, and findings of a vosoritide early access program (EAP) conducted in France.

Methods: Participants aged ≥5 years with achondroplasia and open epiphyses were eligible for enrollment in the EAP, conducted by six centers within the French national rare disease reference center for constitutional bone diseases network, from 24 June 2021 to 13 December 2022. Treatment consisted of once daily subcutaneous vosoritide 15 μg/kg. Safety and effectiveness (height, height Z-score, annualized growth velocity [AGV]) data over a 12-month follow-up period were collected.

Results: Among 62 enrolled participants, 57 started treatment with vosoritide within the EAP period with 38 completing at least 6 months and 22 at least 12 months of treatment. After 12 months of treatment, participants achieved a mean AGV of 6.0 cm/year, absolute gain in height of 6.2 cm, and increase in height Z-score referenced to the average stature population of 0.38. All adverse events were mild (mainly injection site reactions) and there were no discontinuations related to vosoritide treatment.

Conclusions: In this first use of vosoritide in a real-world setting, vosoritide had a positive benefit-risk ratio similar to that observed in vosoritide clinical trials. The French EAP provides a model that may be adapted and adopted for use in other countries.
Validity of diagnosis codes to identify a dermatomyositis cohort from electronic health records
Authors: Silberzweig Alex , Strunk Andrew , Flatley Elizabeth , Fernandez Anthony P. , Garg Amit
Published: January 2025

Introduction: Dermatomyositis (DM) is an uncommon idiopathic inflammatory myopathy resulting in characteristic patterns of cutaneous lesions and myositis. Observational evidence related to the disease is limited by small case cohorts. We aimed to evaluate the validity of specialist-specific diagnostic coding for DM in an outpatient clinical database.

Methods: Adults having an outpatient encounter between January 1, 2010–June 30, 2023 at a United States regional health system with ICD-9/-10 coding for DM were identified. We randomly sampled 156 patients with > 1 code applied by a dermatologist or rheumatologist. The primary reference standard for case adjudication was a confirmed diagnosis of DM by the treating physician in the medical chart. Fulfilment of the 2017 European Alliance of Associations for Rheumatology/American College of Rheumatology (EULAR/ACR) criteria for “probable” or “definite” DM was used as a secondary, more stringent reference standard. Positive predictive values (PPVs) for several case definitions were calculated with 95% confidence intervals.

Results: Among eligible patients, median age was 51.5 years, and 81% were female. Using the treating physician’s diagnosis as reference, PPVs of > 1 and > 2 codes applied by a dermatologist were 93.2% (95% CI 82.0%-98.3%) and 96.4% (82.2%-99.8%), respectively. The PPVs of > 1 and > 2 codes from a rheumatologist were 82.0% (77.1%-86.9%) and 85.8% (80.6%-91.1%), respectively. At least one and at least two codes from a rheumatologist or dermatologist had PPVs of 82.1% (77.3%-86.8%) and 85.7% (80.7%-90.8%), respectively. The rate of confirmed cases based on EULAR/ACR criteria ranged from 44.9% to 57.1%.

Conclusion: All tested algorithms yielded an accurate case cohort with high PPV. Studies prioritizing sensitivity may use > 1 code by dermatology or rheumatology to identify patients with DM.
Markers of Prognosis for Acute Esophageal Necrosis: A Systematic Review
Authors: Kupferman Judah , Matin Maliyat , Wend Matthew , Rubio Castillon Jesus Javier , Mitchell Richard , Aron Joshua , Ye Rebecca
Published: January 2025

Introduction: Acute esophageal necrosis (AEN) is a rare and lethal condition that may progress to sepsis and perforations. Most related literature comes from case reports; however, a few small reviews have been published. We conducted a large systematic review of AEN using PubMed, MEDLINE, and Embase to organize data into one consolidated manuscript, find potential prognosticators of illness, and determine possible treatment guidelines for AEN.
Methods: Advanced searches were performed of all English case reports from 1990 to 2021 using medical subject heading (MeSH) terms. Data on patient age, sex, comorbidities, initial presentation, management, progression of illness, and hospital survival were collected.
Results: Our study included 226 articles, encompassing 319 cases. 32.3% of patients had diabetes, 26.6% had hypertension, and 19.7% had alcohol use disorder. 66.5% presented with an upper gastrointestinal bleed and 21.9% developed sepsis or esophageal perforation. 60.9% of patients were reported to have survived their illness, but 16.6% of cases did not have their discharge status documented. Interestingly, patients presenting with pain or ketoacidosis demonstrated improved survival.
Conclusion: AEN becomes more prevalent as patients age and develop cardiovascular disease, which increases the risk of developing a hypoperfusive state and mucosal injury to the distal esophagus. Early fluid resuscitation, acid-reducing agents, and bowel rest may serve as potential lifesaving interventions, and antibiotics should be considered if there is concern for infection. Patients require close follow up in anticipation of impending stricture.
Dimensão econômica e ambiental da cadeia da cana-de-açúcar brasileira: uma abordagem insumo-produto (2000, 2005, 2010 e2014)
Authors: Montoya Marco Antonio , Shikida Pery Francisco Assis , Bechlin André Ricardo
Published: January 2025

This article is aimed at analyzing the income and employment generation, energy consumption and CO2 emissions of the Brazilian Sugarcane Chain for the years of 2000, 2005, 2010, and 2014. To obtain those data, the energy and emissions matrices were compatibilized and disaggregated, according to Brazil's input-output matrix. In the evaluated period, the Sugarcane Chain, related to the Agribusiness, had a reduction in its share in GDP and in the number of employments, however, it showed gains in energy consumption and CO2 emissions, which are mostly from renewable sources.
Percepção e heterogeneidade na avaliação do grau de satisfação: uma investigação para o trabalho decente
Authors: Oliveira Victor Rodrigues de
Published: January 2025

O objetivo deste artigo é decompor a satisfação do trabalho em dois componentes, permitindo o controle do efeito da incerteza e da percepção na avaliação do trabalho decente. A partir dos dados da PNAD 2015 observamos que o viés de desejabilidade social é importante na composição do rating de satisfação, sendo seguido pelos componentes de percepção e de incerteza. Identificamos que a experiência no mercado de trabalho e a prática de atividades físicas reduzem a incerteza no processo decisório, e que a percepção de satisfação é maior entre os chefes de família e aqueles com maior experiência no emprego atual.
Os impactos do mercado de crack nos pequenos municípios do Rio Grande do Sul: uma viagem sem volta para a criminalidade violenta
Authors: Oliveira Cristiano Aguiar de , Costa Iuri Capa Verde
Published: January 2025

O artigo avalia a relação causal entre criminalidade violenta e mercado de drogas ilícitas pela identificação escalonada de mercados de crack em municípios do Rio Grande do Sul entre 2011 e 2017. Os resultados indicam que um mercado de crack está associado a aumentos de 53,82% nos homicídios nos períodos seguintes, de 40,92% nos roubos a pedestres no período em que o mercado é identificado e de 94,08% nos roubos a residência no grupo de municípios tratados a partir de 2016. A conclusão é de que o mercado de crack gerou incrementos relevantes e duradouros na criminalidade violenta.
Kami no Kabeira: o cinema policial brasileiro sob a perspectiva estética do mangá
Authors: Rodrigues Márcio dos Santos
Published: January 2025

Kami no Kabeira, mangá da autora Amase Shiori, utiliza o gênero policial brasileiro como ponto de partida para explorar as interações culturais entre Japão e Brasil. Shiori constrói uma estética transcultural combinando elementos simbólicos e valores desse gênero com o estilo narrativo japonês. O resultado é uma obra visual que reconfigura o universo das favelas cariocas dentro do contexto japonês e introduz um espaço liminar, no qual conceitos de violência e justiça são reinterpretados.
O soft power e a importância do mangá em termos econômicos e diplomáticos para o Japão
Authors: Kikuchi Akiko
Published: January 2025

Conferência ministrada na abertura das 7as Jornadas Internacionais de Histórias em Quadrinhos, em agosto de 2023. Versa sobre o papel do mangá e da cultura pop na diplomacia do Japão.
Editorial revista 9a Arte, volume 12, 2024
Authors: Vergueiro Waldomiro , Santos Roberto Elísio dos
Published: January 2025

Editorial do volume 12 da revista 9a Arte, publicada em 2024.
Ações inclusivas e diversidade nos quadrinhos: estudo de caso da 7ª Bienal de Quadrinhos de Curitiba
Authors: Marino Daniela dos Santos Domingues
Published: January 2025

It aims to present resources that enable deeper reflection on comic books produced by women in Brazil through a case study of actions promoted by the 7th Curitiba Comics Biennial, which took place in September 2023, as well as evaluating parallel activities that aimed to expand the reach and consumption of these works. The hypothesis that guides this work is that spaces for cultural legitimization of comic books could generate greater interest among the participating public in works that are not usually among the most evaluated on specialized websites, in addition to offering, by targeted activities, new reading possibilities that would favor greater connection and empathy between readers and themes covered in the productions.
Quadrinhos autobiográficos brasileiros evoluem entre as brechas do mercado editorial
Authors: Oliveira Ana Carolina
Published: January 2025

Discute os resultados observados a partir de pesquisa bibliográfica e documental envolvendo o cenário étnico-racial dos quadrinhos autorais brasileiros, com ênfase nos quadrinhos autobiográficos. Analisou editoras e eventos no Brasil, a fim de exemplificar as consequências do racismo estrutural no mercado editorial de quadrinhos do país. Os dados obtidos tendem a representar reflexos do processo de colonização do Brasil. Nesse contexto, algumas questões são passíveis de reflexão crítica. Primeiramente, as análises de dados do mercado editorial destacam a falta de diversidade étnica nas editoras nacionais de quadrinhos em comparação aos dados demográficos oficiais do Brasil. Além disso, esses dados sobre o mercado editorial indicam que a maior editora do país não estaria apoiando os artistas nacionais. Da mesma forma, também não estaria contribuindo para uma conexão com outros autores de países latino-americanos. Ainda se pode deduzir que os esforços editoriais priorizaram a publicação de quadrinhos estrangeiros que já são aclamados na indústria internacional de histórias em quadrinhos. Diante desse cenário, a autopublicação, o acesso a eventos de histórias em quadrinhos e as novas, porém pequenas, editoras brasileiras foram percebidas como alguns dos espaços estreitos responsáveis ​​pelo desenvolvimento dessa mídia na indústria nacional após a ditadura militar, período em que diminuiu bastante a publicação de quadrinhos autorais no Brasil.
Marketing Social como Ferramenta de Resgate da Boa Política de Vacinação Brasileira: uma análise de conteúdo de marketing social
Authors: Acevedo Claudia Rosa , Oliveira Dayana Lais , Soggia Namara de Tullio , Catão Bruno
Published: January 2025

By April 2021, the covid-19 outbreak had already taken the lives of more than 2 million people worldwide, with more than 300 million infected. In addition to prevention campaigns using non-medicinal methods, vaccination campaigns focused on raising public awareness and destroying anti-vaccine myths are necessary. The objective of this article was, through the method of Content Analysis, to describe the appeals used in the campaigns broadcast by the Ministry of Health in favor of vaccinating the population. Good levels of rational and empathetic appeals were observed in most of the pieces studied, however the levels of representativeness were below the recommended, and the appeal of authority used in some of them tends to lose its effect over time.
Critérios pedológicos e socioambientais indicativos da adequação de intervenções técnico-produtivas em agroecossistemas familiares: o exemplo da região do baixo Tocantins-Cametá, Pará
Authors: Ritter Lourdes Henchen , Ruivo Maria de Lourdes Pinheiro
Published: January 2025

O estudo adotou critérios pedológicos indicativos da qualidade de sistemas produtivos desenvolvidos em agroecossistemas familiares em duas localidades do Território do Baixo Tocantins (TBT), estado do Pará. Tais indicadores foram selecionados com o objetivo de se analisar comparativamente a adequação de duas formas de intervenções técnico-produtivas (agroecológica e agroindustrial). A primeira localidade considerada representativa dos modos de intervenções de base agroecológica pertence ao município de Cametá (comunidades Ajó e Inacha), nas quais os agricultores fazem parte de uma rede de agricultores multiplicadores, oportunizada pela Associação Paraense de Apoio a Comunidades Carentes (APACC). A segunda localidade é um Projeto de Assentamento chamado Calmaria II, no município de Moju (comunidades São José e Água Preta), onde o dendê (Elaeis guineenses) é a principal atividade produtiva promovida pelo Programa Nacional de Produção e Uso do Biodiesel (PNPB), operacionalizado por agroindústrias da dendecultura, junto aos agricultores familiares. Foi realizado uma caracterização de indicadores locais de sustentabilidade socioambientais, para fins de tipificação dos agricultores representativos, e coletados dados pedológicos, obtidos pela descrição morfológica e pela análise de amostras retiradas de subáreas sujeitas a diferentes formas de uso da terra: sistema agroflorestal (SAF), área de roça (AR), área com dendezeiro (AD) e floresta nativa (AF). Os resultados mostraram que as intervenções, de certa forma, alcançaram os propósitos, mas muitos problemas foram observados: para o caso da intervenção em Calmaria II, a relação entre agricultores e técnicos foi bastante conflitante; dentre os aspectos mais positivos estão aqueles vinculados ao aumento do trabalho, tanto na própria propriedade como pela venda de mão-de-obra à agroindústria. A intervenção de caráter agroecológico foi mais bem-sucedida na comunidade de Ajó do que em Inacha, uma vez que, na primeira, houve maior eficiência na transição do manejo (práticas e técnicas) da agricultura tradicional (coivara) para a agroecológica. Possivelmente, isso ocorreu porque Ajó dispõem de um meio biofísico mais diversificado com solo de terra firme, como o Latossolo Amarelo distrófico (LAd) sob vegetação secundária e solos originados em planícies fluviais, mais hidromórficos, que ampliam as possibilidades das atividades do sistema produtivo. O SAF dessa comunidade mostrou-se mais enriquecido naturalmente em bases trocáveis (K+, Ca2+, Mg2+) e com maiores concentrações em nitrogênio microbiano quando comparado aos demais sistemas de manejo das outras comunidades observadas.
Avaliação da vulnerabilidade ambiental em unidades de conservação da Amazônia Legal Brasileira
Authors: Silva Ermeson Freitas da , Ruivo Maria de Lourdes , Lima Aline Meiguins de , Silva João Marcio Palheta da , Meireles Rafael Ribeiro
Published: January 2025

T
This study analyzes the environmental vulnerability of Conservation Units (CUs) in the Brazilian Legal Amazon from 2012 to 2021, focusing on the increasing impacts resulting from human activities, such as deforestation, wildfires, logging, and agriculture. Although the National System of Conservation Units (SNUC) has been implemented, it has not been sufficient to prevent these impacts, necessitating a detailed assessment of protected areas. The methodology adopted was based on the selection of indicators and modeling of environmental indices, considering economic, social, cultural, and political factors, enabling a precise evaluation of the vulnerability of CUs. Indicators of exposure, sensitivity, potential impact, and adaptive capacity were used to develop a final vulnerability index, identifying the main threats to CUs, such as the expansion of pastures and wildfires. The methodological procedures included selecting relevant indicators, collecting data from various sources (such as INPE, MapBiomas, and MODIS), normalizing and weighting the data, calculating the indices, and spatial analysis of the results. The analysis revealed significant heterogeneity among the CUs in the Legal Amazon, with regions of lower adaptive capacity concentrated mainly in the states of Pará, Maranhão, Tocantins, Mato Grosso, and Rondônia. The findings highlight the urgency of targeted interventions and the use of the vulnerability index as a practical tool for the strategic allocation of resources and the implementation of more effective conservation policies, contributing to the sustainable management of the Legal Amazon.
Geografia do voto: influências das singularidades territoriais nas eleições presidenciais do Brasil ao Maranhão
Authors: Masullo Yata Anderson Gonzaga , Silva Junior Rubens Pereira e
Published: January 2025

This article set out to analyze the spatio-temporal dynamics of the presidential elections in Brazil, between 2018 and 2022, as well as understand the trends and territorial patterns of elections at the national level and how they are reproduced on a regional and local scale in the state. of Maranhão, as well as revealing regional trends and identifying political and ideological divisions. The methodological proposal was developed as an ecological study under a systemic and multidisciplinary approach. To this end, Exploratory Spatial Data Analysis tools - AEDE and the Geographic Information System - GIS (factor and cluster analysis) were used. In Maranhão, as well as in other states in the Brazilian Northeast, there is a strong PT electoral stronghold, with emphasis on the north and northeast regions of the state. However, there is an increase in the electorate linked to Bolsonarist agendas in the center-south and southwest, with the support of conservative sectors connected to businesspeople, religious and agribusiness leaders. On the other hand, it is considered that the advancement of polarization should not be measured exclusively by indicators linked to income, class and race, but it is necessary to examine the regional and local historical and cultural context. In general, the research results demonstrate that electoral dynamics can serve as a proxy to understand sociodemographic, cultural and historical factors and dynamics at different scales.
O papel das reservas legais na garantia da conectividade entre os remanescentes de vegetação nativa nos biomas brasileiros
Authors: Casteloni Carlos Henrique Pires Luiz , Steinke Valdir Adilson
Published: January 2025

Este estudo tem como objetivo principal avaliar, a partir de dados do Cadastro Ambiental Rural - CAR e de uso e cobertura do solo do MapBiomas, o perfil fundiário dos biomas brasileiros e o papel que as reservas legais – RL, exercem sobre a estrutura da paisagem, em especial na conectividade entre os remanescentes de vegetação nativa - RVN. Para isso, os imóveis declarados no CAR são classificados conforme o tamanho dos Módulos Fiscais - MF, em pequena, média e grande propriedade rural. Para estudar a participação das RL na estrutura da paisagem é utilizada a métrica de distância euclidiana. Nessa abordagem, é simulado o grau de isolamento entre as manchas de RVN considerando dois contextos: com e sem as RL. Como principais resultados, foi identificado a partir de dados declarados no CAR, que a estrutura fundiária do Brasil ainda é, majoritariamente, concentrada. Com exceção da Caatinga, em todos outros biomas observa-se que embora exista um número elevado de pequenos imóveis, as grandes propriedades ainda correspondem à maior proporção de terras. Em relação a cobertura do solo foi identificado que as propriedades grandes têm forte participação tanto na conservação ambiental, quanto nos passivos ambientais. A análise do grau de conectividade entre os RVN mostrou que as RL têm grande influência na conectividade da estrutura da paisagem. Considerando o contexto com RL, 92,28% das manchas estão em uma distância de até 100 m umas das outras, na média dos biomas. No contexto sem RL, esse percentual cai para 78,76%.
A multipropriedade enquanto estratégia de produção do espaço turístico brasileiro
Authors: Maia Filho José Almir Ramos , Pereira Alexandre Queiroz , Silva Marilia Natacha de Freitas
Published: January 2025

A atividade do imobiliário-turístico é a principal condicionante do processo de urbanização em diversas localidades litorâneas. Nos últimos anos, a multipropriedade, modalidade na forma de aquisição e uso de imóveis, vinculada às tipologias de empreendimentos inseridas nos espaços turísticos, vem ganhando força a nível nacional. Este artigo investiga o papel da multipropriedade na produção de espaços turísticos a partir da atividade imobiliária. Os procedimentos teórico-metodológicos empregados se articulam a partir da caracterização do timeshare – conceito originário da atividade –, em suas origens, consolidação e exemplos internacionais. Em seguida, analisa-se o cenário atual da multipropriedade nas escalas nacional e da região Nordeste, através da descrição das características dos principais empreendimentos e grupos imobiliários responsáveis e da discussão sobre a lógica de espacialização desses projetos. Constatou-se que no Brasil, essa prática teve um crescimento nos últimos cinco anos, principalmente após a aprovação da Lei 13.777, seguida pela implementação de diversos projetos de empreendimentos de multipropriedade pelo país. Como prática espacial associada ao lazer, a multipropriedade aproveita-se de condições estratégicas para sua viabilização: na escala nacional, com os fluxos de proximidade com atrações turísticas, e na escala nordestina, a partir do sucesso das práticas marítimas modernas e das políticas públicas voltadas ao turismo.
Geomorfologia antropogênica e cartografia geomorfológica em uma área urbana do município de Diadema – Sudeste do Brasil
Authors: Morari Eduardo Luiz , Villela Fernando Nadal Junqueira
Published: January 2025

O presente estudo tem como objetivo investigar e mapear a geomorfologia antropogênica de uma área urbana de Diadema, SP. Sendo parte da Região Metropolitana de São Paulo, até meados da década de 1950, o município apresentava características rurais de uso e ocupação do solo e sofreu rápida transformação para atividades urbanas e industriais a partir de 1960. Assim, a intervenção antropogênica no relevo apresenta características bastante distintas da cidade de São Paulo, pois as tecnologias e interesses econômicos eram diferentes dos inícios da urbanização da metrópole. Essas características foram valorizadas na seleção da área de estudo, região central de Diadema, que abrange uma zona de morros cristalinos do Planalto Paulistano.  Adotando uma quadrícula de 700 m², mapeada na escala 1:5.000, a área emoldura importantes modificações antropogênicas no relevo, tais como cortes de talude, aterros, retificações de drenagem e escavações na planície fluvial para reservatórios de contenção de cheias, modificando a topografia, volumes de materiais mobilizados e processos vigentes. Segundo pressupostos da abordagem retrospectiva e a cartografia geomorfológica, foram investigadas as fases de perturbação pré-urbana e de urbanização consolidada, quantificando o material mobilizado pelas intervenções antrópicas diretas por meio da criação de formas positivas e negativas. Assim, este estudo obteve como resultado, a partir do mapeamento geomorfológico do período pré-urbanização (original) e da urbanização consolidada, a qualificação e quantificação das intervenções antropogênicas no relevo, sendo possível o reconhecimento das modificações no relevo e estimativas dos volumes de materiais mobilizados, apontando as intervenções antrópicas nos domínios dos interflúvios e planícies consideradas.
Análise da paisagem urbana visando a implantação de corredor ecológico entre os dois maiores fragmentos florestais do município de Campinas (São Paulo, Brasil): a Mata de Santa Genebra e a Mata Ribeirão Cachoeira
Authors: Martins Sabrina Kelly Batista , Martines Marcos Roberto , Toppa Rogério Hartung
Published: January 2025

The forests of the Atlantic Forest biome are becoming increasingly rare due to various factors that lead to the degradation of forest areas, such as uncontrolled urban expansion, the intensification of agricultural and industrial activities, illegal logging, wildlife trafficking, and the introduction of exotic species. An effective strategy to mitigate the effects of fragmentation is to enhance landscape connectivity through restoration actions, facilitating the movement of organisms between remaining fragments. In this context, the present research aims to plan the landscape to support the implementation of an ecological corridor connecting the two largest forest fragments in the municipality of Campinas: the Mata de Santa Genebra and the Mata do Ribeirão Cachoeira. The methodology included land cover mapping, the definition of Puma concolor (cougar), a threatened species, as the target species, and the analysis of landscape connectivity and resistance metrics. In addition, least-cost paths were used to define the corridor. The proposal resulted in a corridor with a width of 100 meters, covering an area of 248.86 hectares. The corridor was validated through camera traps installed at six strategic points, where Puma concolor, the target species of this research, was recorded. This ecological corridor has the potential to significantly improve landscape connectivity, allowing the movement of organisms between fragmented natural areas and playing a crucial role in local biodiversity conservation, as well as contributing to the urban planning of Campinas.
Trabalho de campo em fitofisionomias florestais e não florestais de Roraima, no âmbito dos projetos PRODES e DETER
Authors: Messias Cassiano Gustavo , Xaud Haron A. Magalhães , Xaud Maristela Ramalho , Moraes Douglas Rafael V. de , Teixeira Raíssa Caroline dos S. , Renó Vivian , Moreira Noeli Aline P. , Correia-Lima Deborah L. , Souza Jefferson J. de , Barros Lucélia S. de , Andrade Ana Carolina Santos de , Belluzzo Amanda P. , Barradas Delmina Carla M. , Lima Thiago C. de , Cunha Igor P. , Gusmão Luiz Henrique A. , Perez Letícia P. , Matias Maira Ramalho , Pinto João Felipe S. K. C. , Ribeiro Neto Manoel R. , Camilotti Vagner Luis , Neves Evandro Carlos Costa , Alves Fábio Corrêa , Souza Arlesson Antonio de Almeida , Silva Libério J. da , Soler Luciana , Maurano Luiz Eduardo , Almeida Cláudio Aparecido de , Adami Marcos
Published: January 2025

This report documents observations and analyses from fieldwork conducted between March 20 and 28, 2023, in the state of Roraima, as a collaboration between the National Institute for Space Research (INPE) and the Brazilian Agricultural Research Agency of Roraima (Embrapa Roraima). The study investigated selected features in both forested and non-forested areas, confirming their anthropization status according to the PRODES and DETER monitoring programs (INPE). Additionally, it aimed to identify land uses and land covers in these areas. The fieldwork covered 2,288 km across eight out of fifteen municipalities in Roraima. Most observations in locations classified as "non-forest" by PRODES were in natural areas, while in forested regions, the majority of points were linked to deforested areas. The results provide valuable insights to enhance Amazon monitoring programs, including interpretation guidelines with feature examples and a detailed document describing the 1,042 visited points.
Uma nova abordagem para o mapeamento dos trópicos continentais a partir da relação entre temperatura, altitude e latitude
Authors: Montanher Otávio Cristiano , Minaki Cíntia
Published: January 2025

Existem várias abordagens para se definir os conceitos de região intertropical e de climas tropicais. As principais definições envolvem: latitude, temperatura média anual, amplitude térmica diária e anual, e a circulação geral da atmosfera. Este artigo tem como objetivo propor uma nova abordagem para a classificação da zona tropical nos continentes, distinguindo o globo em dois domínios: tropical e não tropical, utilizando três variáveis: temperatura média anual, latitude e altitude. Foi proposto um modelo simplificado da relação temperatura x latitude, denominado modelo trapezoidal, e utilizando-se a regressão piecewise, foram obtidos os limiares latitudinais que dividem o globo nos dois domínios. O principal resultado desta pesquisa é a proposição de um mapeamento dos trópicos a partir da definição de que eles possuem uma baixa variação latitudinal da temperatura do ar. Nas regiões não tropicais, por outro lado, há uma relação linear inversamente proporcional entre temperatura e latitude. Outros resultados: i) No hemisfério Sul os limites definidos se situam próximos ao trópico de Capricórnio, enquanto no Hemisfério Norte os limites estão ao sul do trópico de Câncer em baixas altitudes, e ao norte em altitudes elevadas. ii) Os trópicos continentais no Hemisfério Norte se estendem para latitudes maiores em relação ao Hemisfério Sul. iii) O modelo trapezoidal para descrição da temperatura global permitiu o cálculo de gradientes latitudinais da temperatura. iv) Nos trópicos os gradientes são baixos (próximos a zero), já nas zonas não tropicais os gradientes possuem médias semelhantes (próximas de 0,8°C/φ), mas comportamentos muito diferentes nos dois hemisférios.
A importância do relevo e do manejo agrícola nas transformações pedogenéticas: estudo de um sistema pedológico no norte do Paraná – Sul do Brasil
Authors: Marcatto Francieli Sant'ana , Silveira Hélio , Cruz Gustavo Henrique Andrade da
Published: January 2025

As transformações pedogenéticas são comandadas por diversos fatores, entre aqueles de maior destaque está o relevo, que condiciona a direção e velocidade dos fluxos hídricos e interfere na formação e distribuição dos solos na paisagem. Entretanto, em solos cultivados, o tipo de uso do solo e o manejo adotado também corrobora para as transformações pedogenéticas, alterando a distribuição de matéria e energia ao longo de uma vertente. Este trabalho tem por objetivo analisar as transformações pedogenéticas e a sua relação com o relevo e com o manejo da cana-de-açúcar, a partir do estudo de uma topossequência de solos derivados de arenitos, localizada em Guaraci-PR. O levantamento dos solos foi realizado em topossequências, identificando as transições verticais e laterais dos horizontes por meio de sondagens a trado e da abertura de trincheiras. Nos pontos selecionados, foram coletadas amostras para a determinação de parâmetros físicos e hídricos dos solos. Os resultados indicaram uma topossequência que apresenta um sistema pedológico complexo, constituído por Latossolo - Argissolo - Neossolo Litólico – Argissolo - Neossolo Quartzarênico. As transformações pedogenéticas foram comandadas por fluxos hídricos superficiais e subsuperficiais, influenciados pelo relevo e pelo manejo da cana-de-açúcar. O aumento da declividade favoreceu o desenvolvimento do escoamento superficial e a instalação de fluxos laterais subsuperficiais, que comandaram os processos e-iluviais e atuaram na gênese dos Neossolos Litólicos, Argissolos e Neossolos Quartzarênicos. Adicionalmente, o manejo agrícola ocasionou a compactação do horizonte subsuperficial dos solos, contribuindo para mudanças na intensidade e direção dos fluxos hídricos, motores dos processos de transformação pedogenética.
Contribuições da Geomorfologia no contexto da modelagem hidrológico-hidráulica do escoamento superficial urbano
Authors: Souza Luiz Humberto de Freitas , Rodrigues Silvio Carlos , Danelon Jean Roger Bombonatto
Published: January 2025

A expansão das áreas urbanizadas nas últimas décadas tem imposto desafios crescentes aos ecossistemas urbanos, evidenciando a interação complexa entre as atividades humanas e o meio físico. Nesse contexto, a Geomorfologia desempenha um papel fundamental ao fornecer ferramentas metodológicas para compreender a morfologia das cidades e sua influência nos processos hidrológicos. O arranjo viário urbano, incluindo aspectos relacionados à impermeabilização da superfície, pode impactar significativamente a direção do fluxo das águas pluviais, comprometendo a eficácia dos sistemas de drenagem e aumentando o risco de alagamentos e inundações. A interferência antrópica desordenada altera substancialmente a dinâmica de escoamento das vertentes, afetando o comportamento das bacias hidrográficas. Diante desse cenário, o presente estudo tem como objetivo demonstrar a importância de adotar uma abordagem integrada para entender a complexa interação entre elementos naturais e antrópicos. Para isso, a pesquisa utilizou a modelagem hidrodinâmica do escoamento superficial na escala da microdrenagem, analisando-a sob a perspectiva da Geomorfologia Urbana e Antropogênica. Esta abordagem visa proporcionar uma compreensão abrangente dos processos geomorfológicos urbanos e desenvolver estratégias mais eficazes para a gestão da drenagem.
O Geopatrimônio no licenciamento ambiental do Estado do Rio Grande do Sul, Brasil
Authors: Kormann Tanice Cristina , Wolff Claudia Bos , Bilhar Jaqueline Dickel , Silva Rafael Fernandes e , Ribeiro Glaucus Vinicius Biasetto , Spolavori Cleber Arruda , Anele Luciana Regina Petry , Midugno Rafael
Published: January 2025

In the same year that Rio Grande do Sul became the Brazilian state with the largest number of geoparks recognized by UNESCO, regulation was published to include the issue in environmental permits at state level. Environmental impact assessment is a support mechanism for decision-making on major construction projects aimed at avoiding significant impacts on the health and safety of communities or compromising the balance of environmental systems. Following the current legislation and aiming to promote geoconservation within environmental management in the state of Rio Grande do Sul, the State Environmental Protection Foundation Henrique Luis Roessler (FEPAM) published the Technical Guideline no. 12/2023 establishes procedures for identifying and assessing geosites and geodiversity sites. This article aims to introduce the instrument that FEPAM has adopted in the environmental permits for activities that have the potential to impact or pollute the environment. The technical guideline seeks to mitigate conflicts between economic activities and the geoheritage. Key challenges and advancements of the guideline include: i) proposing a methodology for inventorying and evaluating sites of relevance; ii) inclusion of the issue in the routine environmental impact assessment within the state environmental permits system; and iii) fostering inter-institutional dialogue to share the highlighting areas of geoconservation interest during environmental permits system. Therefore, this initiative is pioneering in explicitly incorporating this issue in the analysis of public organization, establishing mechanisms to safeguard of regional geoheritage.