Anais da Academia Brasileira de Ciencias最新文献

Distribution patterns, richness, endemism and conservation of Phyllanthaceae in the Atlantic Forest of Northeastern Brazil. 巴西东北部大西洋森林中余甘科植物的分布格局、丰富度、特有及保护。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-04-07 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520240912

Vitória Raquel S Lima, Jefferson R Maciel, Alícia M Torres, Sarah M Athiê-Souza

{"title":"Distribution patterns, richness, endemism and conservation of Phyllanthaceae in the Atlantic Forest of Northeastern Brazil.","authors":"Vitória Raquel S Lima, Jefferson R Maciel, Alícia M Torres, Sarah M Athiê-Souza","doi":"10.1590/0001-3765202520240912","DOIUrl":"10.1590/0001-3765202520240912","url":null,"abstract":"Brazil's Atlantic Forest is one of the most important biodiversity hotspots on the planet, home to several rare and endemic species. The Phyllanthaceae family harbors great richness of endemic species in this area, including some recently described in the Northeastern Atlantic Forest. However, this biome faces serious threats due to human activity, habitat loss and species extinction. This study analyzed the distribution, richness and endemism of Phyllanthaceae species in the Northeastern Atlantic Forest, investigated the relationship between species richness and climatic characteristics, and delimited the centers of endemism and the main threats and pressures. Data from Reflora, Specieslink, herbaria from the Brazilian Northeast and specialized literature were used. Generalized linear models analyzed the relationship between species richness and climate variables. Forty-two species were identified in the study area, 13 of which are endemic. The south of Bahia state stood out for its greater species richness, with 23 species described, including 11 endemic ones. Three centers of endemism were identified: two in southern Bahia and one in Pernambuco state. Most endemic species face threats, with few protected areas. Deforestation, agriculture and urban expansion represent the main pressures on these species in the region.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 2","pages":"e20240912"},"PeriodicalIF":1.1,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Zika virus infection in a non-neural cell host promotes differential expression of proteins associated with neurological conditions. 寨卡病毒在非神经细胞宿主中的感染会促进与神经系统疾病相关的蛋白质的差异表达。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-04-07 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520240849

Júlia F Sant'ana, Emanuela Fernanda Tureta, Rafael L DA Rosa, Yohana P Calegari-Alves, Aline M Faustino, Ana Luiza Marques, Larissa Daniele Bobermin, André Quincozes-Santos, Ana Paula M Varela, Patrícia Sesterheim, Markus Berger, Ramon D Peña, Diogo O Souza, Paulo Roehe, Jorge A Guimarães, Alexandre R Campos, Lucélia Santi, Walter Orlando Beys-DA-Silva

{"title":"Zika virus infection in a non-neural cell host promotes differential expression of proteins associated with neurological conditions.","authors":"Júlia F Sant'ana, Emanuela Fernanda Tureta, Rafael L DA Rosa, Yohana P Calegari-Alves, Aline M Faustino, Ana Luiza Marques, Larissa Daniele Bobermin, André Quincozes-Santos, Ana Paula M Varela, Patrícia Sesterheim, Markus Berger, Ramon D Peña, Diogo O Souza, Paulo Roehe, Jorge A Guimarães, Alexandre R Campos, Lucélia Santi, Walter Orlando Beys-DA-Silva","doi":"10.1590/0001-3765202520240849","DOIUrl":"10.1590/0001-3765202520240849","url":null,"abstract":"The Zika Virus (ZIKV) is a Flavivirus that caused a recent outbreak worldwide resulting in different neurological outcomes that are still poorly characterized and understood. Concerning this issue, in vitro and in vivo models are being applied to improve the molecular understanding of ZIKV infection. In this work, applying shotgun proteomics we revealed the differential ZIKV infection proteome in Vero cells, a non-neural cell model. A dramatic change resulting from infection was found including the differential expression of several proteins previously associated with brain diseases. The molecular alterations caused by this pathogen were further characterized through bioinformatics such as Gene Ontology and protein-protein interaction network of resulting differential proteome. Our findings identified molecular markers that were differentially expressed during ZIKV infection and had been previously linked to neurological conditions and infections caused by ZIKV and/or SARS-CoV-2. The results presented in this article highlight molecular markers associated with neurological dysfunctions, demonstrating that ZIKV infection can dysregulate neural-specific genes, even in non-neural cells.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 suppl 2","pages":"e20240849"},"PeriodicalIF":1.1,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stachytarpheta serrana, a new species of Verbenaceae endemic to the Diamantina Plateau in Espinhaço Range (Minas Gerais, Brazil), with palynological and anatomical notes. 巴西espinhao山脉Diamantina高原马鞭草科特有一新种——Stachytarpheta serrana，附孢粉学和解剖学资料。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-04-07 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520241271

Pedro Henrique Cardoso, Fátima Regina G Salimena, Andrea P Luizi-Ponzo, Nádia Somavilla, Pâmela T Patrício, Marcelo Trovó

引用次数: 0

Impact of initial sensory quality of specialty natural coffee during storage. 精品天然咖啡贮藏初期感官品质的影响

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-04-07 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520241042

Gabriel C Matias, Flávio M Borém, Ana Paula C Alves, Luana Haeberlin, Cláudia M Dos Santos, Ednilton T DE Andrade

{"title":"Impact of initial sensory quality of specialty natural coffee during storage.","authors":"Gabriel C Matias, Flávio M Borém, Ana Paula C Alves, Luana Haeberlin, Cláudia M Dos Santos, Ednilton T DE Andrade","doi":"10.1590/0001-3765202520241042","DOIUrl":"10.1590/0001-3765202520241042","url":null,"abstract":"The objective of this study was to chemically and sensorially evaluate dryprocessed coffees with an initial quality of 82 and 84 points on the SCA (Specialty Coffee Association) scale, packaged in impermeable and permeable materials, and stored at room temperature and in a refrigerated environment for 9 months. The sensory and chemical quality of the stored beans was evaluated at the beginning of storage, as well as after six and nine months. The results show that specialty natural coffees with a higher initial sensory score experience attenuation of sweetness, acidity, body, and aftertaste over 9 months of storage, with stability in the overall score and sensory descriptors, particularly when stored in high-barrier packaging. Chemically, the changes observed during storage differ depending on the initial sensory quality of the specialty natural coffees, with greater preservation of volatile compounds and fatty acids when high-barrier packaging is used, regardless of storage temperature. It is concluded that, in addition to packaging and storage conditions, the initial attributes of natural coffee are a determining factor for quality after 9 months of storage. Chemical changes during storage vary according to the initial sensory quality of specialty natural coffees.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 2","pages":"e20241042"},"PeriodicalIF":1.1,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantum Heisenberg Spin Chains with Inversely Linear Correlated Disorder: Localization Effects and State Transfer Protocols. 具有反线性相关无序的量子海森堡自旋链：局域化效应和状态转移协议。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-04-07 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520241047

Marconi Silva Santos Junior, Messias DE Oliveira Sales, Guilherme M A Almeida, Francisco Anacleto Barros Fidelis DE Moura

{"title":"Quantum Heisenberg Spin Chains with Inversely Linear Correlated Disorder: Localization Effects and State Transfer Protocols.","authors":"Marconi Silva Santos Junior, Messias DE Oliveira Sales, Guilherme M A Almeida, Francisco Anacleto Barros Fidelis DE Moura","doi":"10.1590/0001-3765202520241047","DOIUrl":"10.1590/0001-3765202520241047","url":null,"abstract":"In this work, we investigate the effects of correlated disorder on the quantum Heisenberg spin chain. The exchange couplings between adjacent spins are modeled as a disordered distribution with inverse linear correlation function controlled by a parameter 𝛾. The Cholesky decomposition method is employed to generate the spin-spin coupling that adheres to this correlation structure. By analyzing the autocorrelation function, we observe the influence of the correlation parameter 𝛾 on the decay behavior of the autocorrelation. Furthermore, we study the eigenstates of the Hamiltonian in the one-magnon subspace and calculate the density of states and the participation ratio, providing insights into the localization properties of the system. Our findings suggest that introducing correlated disorder significantly alters the physical properties of the spin chain, which could have implications for understanding disordered quantum systems and developing state transfer protocols with reasonable fidelity.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 suppl 2","pages":"e20241047"},"PeriodicalIF":1.1,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spectral-Directional Thermography for Scientific Applications. 用于科学应用的光谱定向热成像。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-04-07 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520241168

Matheus Pereira Porto

{"title":"Spectral-Directional Thermography for Scientific Applications.","authors":"Matheus Pereira Porto","doi":"10.1590/0001-3765202520241168","DOIUrl":"10.1590/0001-3765202520241168","url":null,"abstract":"Thermography is a widely used non-contact technique in scientific research for temperature estimation and thermal analysis. However, conventional thermographic methods often suffer from significant measurement errors due to oversimplified thermal radiation models. This work addresses these limitations by contrasting conventional techniques with advanced thermography methods, introducing a spectral-directional modeling framework to enhance measurement accuracy and scientific rigor. Key contributions include the development of robust mathematical models, such as the three-component spectral-directional model, which effectively reduces measurement errors by accounting for the complexities of thermal radiation phenomena. These advancements enable accurate thermographic measurements, expanding the technique's applicability across diverse scientific fields. To the best of the author's knowledge, the application of the spectral-directional model to post-process thermal imager data represents a novel contribution to the field. Experimental results, supported by comparisons with peer-reviewed literature, highlight the transformative potential of this framework in a range of scientific applications.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 suppl 2","pages":"e20241168"},"PeriodicalIF":1.1,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Isolation of lactic acid bacteria and quantification of Lentilactobacillus buchneri using qPCR in sorghum silage inoculated with native strains in tropical conditions. 用qPCR方法对热带地区本地菌株接种的高粱青贮中乳酸菌的分离和布氏慢乳杆菌的定量分析。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-03-31 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520240783

João Paulo S Roseira, Odilon G Pereira, Tâmara C DA Silveira, Ricardo M A Pinho, Renan S Cascardo, Rosinea A DE Paula, Poliane A Zerbini, Hilário C Mantovani, Wagner S Alves, Karina G Ribeiro

{"title":"Isolation of lactic acid bacteria and quantification of Lentilactobacillus buchneri using qPCR in sorghum silage inoculated with native strains in tropical conditions.","authors":"João Paulo S Roseira, Odilon G Pereira, Tâmara C DA Silveira, Ricardo M A Pinho, Renan S Cascardo, Rosinea A DE Paula, Poliane A Zerbini, Hilário C Mantovani, Wagner S Alves, Karina G Ribeiro","doi":"10.1590/0001-3765202520240783","DOIUrl":"https://doi.org/10.1590/0001-3765202520240783","url":null,"abstract":"The objective of this study was to isolate lactic bacteria, quantify the population of Lentilactobacillus buchneri by qPCR, and evaluate the effects of the inoculation of native strains of L. buchneri in sorghum silage. The treatments were arranged in a 4 × 5 factorial scheme, with four inoculants (I) and five fermentation periods (P) (7, 14, 28, 45, and 90), in a completely randomized design, with three replicates. Forty-seven LAB strains were isolated from control silage, and L. buchneri was the predominant species at 45 and 90 days of fermentation. The qPCR data showed that L. buchneri predominated during all fermentation periods in the inoculated silages. There was an effect (P<0.05) of I × P interaction on all studied variables of the fermentative profile and microbial population. There was an effect (P<0.05) of I × P interaction on the dry matter (DM), neutral detergent fiber (NDF), in vitro DM digestibility, and in vitro NDF digestibility. Inoculation with L. buchneri resulted in silages with better fermentative quality and digestibility and a lower yeast population. The native LB.1 and LB.4 strains have potential to be used as inoculants in sorghum silage production, with effects on fermentation quality at 45 days of storage.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 1","pages":"e20240783"},"PeriodicalIF":1.1,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143762818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reproductive biology of Psomophis genimaculatus (Boettger 1885) (Serpentes: Dipsadidae) from Brazil. 巴西生马孔鲑的生殖生物学（Boettger 1885）（蛇纲：蛇科）。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-03-31 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520240469

Kelvin Y Mori, Cecília M Ferracini, Liliana Piatti, Hugo Cabral, Vanda Lúcia Ferreira

{"title":"Reproductive biology of Psomophis genimaculatus (Boettger 1885) (Serpentes: Dipsadidae) from Brazil.","authors":"Kelvin Y Mori, Cecília M Ferracini, Liliana Piatti, Hugo Cabral, Vanda Lúcia Ferreira","doi":"10.1590/0001-3765202520240469","DOIUrl":"https://doi.org/10.1590/0001-3765202520240469","url":null,"abstract":"Although the geographic distribution, phylogeny and natural history of Psomophis genimaculatus, a snake that inhabits diverse environments, such as the Chiquitana Forest, Cerrado, Pantanal, and Chaco, have been investigated in several studies, reproductive biology assessments are still lacking for this species. In this sense, this research investigated sexual dimorphism, sexual maturity, and reproductive cycle of P. genimaculatus, specimens from Brazil. Sexually reproductive females display longer body lengths, while males possess longer tails, although similar head lengths and widths are noted males and females. The female reproductive cycle exhibits a prolonged seasonal pattern, with secondary vitellogenesis taking place from September to June and oviductional eggs appearing between July and September. Follicular length, however, was not correlated to seasonality. Fecundity was not associated to body length but was closely aligned with potential fecundity. Histological assessments indicate secondary vitellogenesis beginning at follicle length of 7.6 mm. Ductus deferens and testicular volume in males are not influenced by body size or season. A spermatogenesis peak is noted in early autumn, with residual activity observed throughout winter. This study contributes with novel data on the reproductive biology of P. genimaculatus, aiding in this species conservation efforts.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 1","pages":"e20240469"},"PeriodicalIF":1.1,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143762819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of Deep Learning Techniques for Vehicle Detection and Reidentification Using Data from Multiple Drones and Public Datasets. 基于多无人机和公共数据集的车辆检测和再识别的深度学习技术分析。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-03-31 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520240623

Felipe P A Euphrásio, Rafael M DE Andrade, Elcio H Shiguemori, Liangrid L Silva, Moisés José S Freitas, Nathan Augusto Z Xavier, Argemiro S S Sobrinho

{"title":"Analysis of Deep Learning Techniques for Vehicle Detection and Reidentification Using Data from Multiple Drones and Public Datasets.","authors":"Felipe P A Euphrásio, Rafael M DE Andrade, Elcio H Shiguemori, Liangrid L Silva, Moisés José S Freitas, Nathan Augusto Z Xavier, Argemiro S S Sobrinho","doi":"10.1590/0001-3765202520240623","DOIUrl":"https://doi.org/10.1590/0001-3765202520240623","url":null,"abstract":"The detection and re-identification of vehicles in dynamic environments, such as highways monitored by a swarm of drones, presents significant challenges, particularly due to the variability of images captured from different angles and under various conditions. This scenario necessitates the development of suitable methods that integrate appropriate computational techniques, such as convolutional neural networks (CNN) to address the diversity of drone captures and improve accuracy in detection and re-identification. In this paper, a solution for vehicle detection and Re-ID is proposed, combining CNN techniques VGG16, VGG19, ResNet50, InceptionV3 and EfficientNetV2L. YOLOv4 was selected for detection, while the DeepSORT algorithm was chosen for tracking. The proposed solution considers the generalization capabilities of these techniques with varied images from different drones in different positions. Two datasets were employed: the first is a public dataset from Mendeley used for method evaluation, while the second consists of images and data collected by a swarm of drones. In the first experiment, the best performing network was ResNet50, with an average accuracy of 55%. In the second experiment, the highest accuracy CNN was VGG19, with 91% accuracy. Overall, the techniques were able to distinguish vehicles of different models and adapted to the data captured by drones.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 2","pages":"e20240623"},"PeriodicalIF":1.1,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143762821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Avian malaria in birds from Atlantic Rainforest: a record of Plasmodium cathemerium and other novel lineages. 大西洋热带雨林鸟类中的禽疟原虫：疟原虫(Plasmodium cathemerium)和其他新品系的记录。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-03-31 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520240698

Talys H A Jardim, Mariana F Rossi, Huarrisson A Santos, Marta T D'Agosto, Roberto Júnio P Dias

引用次数: 0