Anais da Academia Brasileira de Ciencias最新文献_第3页

Make or buy strategy for Machine Learning Operations - MLOps. 制定或购买机器学习操作策略- MLOps。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-05-09 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520240924

Diego Nogare, Ismar F Silveira, Renato Banzai, Maína C Alexandre

引用次数: 0

A new ornithocheiran pterosaur from the Upper Cretaceous (Cenomanian) of Saratov, Russia. 俄罗斯萨拉托夫上白垩纪（Cenomanian）鸟颅翼龙新种。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-04-28 DOI: 10.1590/0001-3765202520241063

Alexander O Averianov

引用次数: 0

Novel biosynthesis of silver nanoparticles catalytically active using extract of non- native species (Eragrostis plana Nees) of Brazilian Pampa. 利用巴西潘帕草原非本地物种（Eragrostis plana Nees）的提取物合成具有催化活性的新型纳米银颗粒。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-04-25 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520241276

Valeska M Scuro, Augusto C Dotta Filho, Daniel Rapachi, Ana C Mazzocato, Marcos A Gelesky, Flávio A Pavan

引用次数: 0

Seasonality and life cycle of the jellyfish Lychnorhiza lucerna Haeckel, 1880 (Scyphozoa) in southern Brazil. 巴西南部Lychnorhiza lucerna Haeckel的季节性和生命周期，1880年（水母纲）。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-04-25 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520240740

Andressa Leite DA Silva, Charrid Resgalla

{"title":"Seasonality and life cycle of the jellyfish Lychnorhiza lucerna Haeckel, 1880 (Scyphozoa) in southern Brazil.","authors":"Andressa Leite DA Silva, Charrid Resgalla","doi":"10.1590/0001-3765202520240740","DOIUrl":"https://doi.org/10.1590/0001-3765202520240740","url":null,"abstract":"Lychnorhiza lucerna, is a species of Scyphozoa with tropical and subtropical distribution in the western Atlantic. The knowledge of its life cycle is fragmented, with little understanding of environmental factors affecting growth processes and reproduction. This study evaluated the different phases of the life cycle of this macromedusa based on laboratory experiments with the polyp phase at different temperatures and 10 years of field data for the medusoid phase. Experiments on the polypoid phase determined a longer development time for the polyp population, highlighting the upward thermal shock for the excystment of podocysts and that the higher temperature (25 °C) stimulates greater production of ephyrae. In the south of Brazil, the presence of juveniles (< 5 cm in diameter) and adults (> 15 cm) of the medusoid phase was observed in winter and spring and during the period of upward variation in water temperature (18.5 to 23.8 ° C). These results confirm the annual life cycle of the species, that sporadic outbreaks (blooms) can be influenced by the stimulus of polyp strobilation. Based on the growth rates obtained in the laboratory and the population dynamics, this suggests that the organisms could be transported to the mouth of the Plata.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 2","pages":"e20240740"},"PeriodicalIF":1.1,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143964175","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

Contributions to study the anatomy of stomach of Bradypus variegatus (Mammalia: Folivora). 杂交鱼胃解剖研究的贡献（哺乳纲：叶形目）。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-04-25 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520240507

Gilcifran P DE Andrade, Priscilla V DE Albuquerque, Igor Luiz C Máximo, Sandra M DE Torres, Estefani S DO Nascimento, Emanuela P DE Mesquita, Júlio Cézar Dos Santos Nascimento, Apolônio G Ribeiro, Marcos Vinicius S DE Oliveira, Marleyne José A A L Amorim

{"title":"Contributions to study the anatomy of stomach of Bradypus variegatus (Mammalia: Folivora).","authors":"Gilcifran P DE Andrade, Priscilla V DE Albuquerque, Igor Luiz C Máximo, Sandra M DE Torres, Estefani S DO Nascimento, Emanuela P DE Mesquita, Júlio Cézar Dos Santos Nascimento, Apolônio G Ribeiro, Marcos Vinicius S DE Oliveira, Marleyne José A A L Amorim","doi":"10.1590/0001-3765202520240507","DOIUrl":"https://doi.org/10.1590/0001-3765202520240507","url":null,"abstract":"Accurate anatomical and physiological knowledge of the stomach of the three-toed sloth is essential for effective clinical, surgical and dietary management, particularly in rehabilitation settings. This study analyzed the holotopy, topography, syntopy, and macro- and microscopic morphology of the stomach in thirteen B. variegatus specimens. Macroscopically, the stomach was located in the cranial, middle and abdominal regions and extended over the xiphoid, hypochondriac, lateral and umbilical regions. It had syntopic relationships with the diaphragm, liver, intestines, uterus (in females), vertebrae, ribs, spleen, pancreas, kidneys and abdominal musculature. The stomach showed distinct structural divisions, including saccular, diverticular and tubular segments, leading to the classification of seven anatomical regions: cranial sac, left and right lateral sacs, ventral sac, diverticulum, glandular pre-pylorus and non-glandular pre-pylorus. Histologically, the cranial sacs were non-glandular and keratinized, whereas the right lateral sac and diverticulum were glandular, the latter possibly involved in absorption. The cranial pre-pyloric region contained oxyntic and zymogenic glands, whereas the caudal pre-pyloric region lacked glands but had a keratinized mucosa. Unique anatomical features included peritoneal recesses, an omental pouch.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 2","pages":"e20240507"},"PeriodicalIF":1.1,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143971388","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

Physiological stress response in Nile tilapia (Oreochromis niloticus) exposed to firework noise. 尼罗罗非鱼（Oreochromis niloticus）对烟花噪声的生理应激反应。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-04-25 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520241277

Halit Kusku, Murat Yigit

{"title":"Physiological stress response in Nile tilapia (Oreochromis niloticus) exposed to firework noise.","authors":"Halit Kusku, Murat Yigit","doi":"10.1590/0001-3765202520241277","DOIUrl":"https://doi.org/10.1590/0001-3765202520241277","url":null,"abstract":"In the present study, impacts of firework noise on physiological response and stress recovery were investigated in Nile tilapia (Oreochromis niloticus). Two treatment groups, one with firework noise exposure, and a control with no noise exposure at all was used in the study. After a disturbance challenge with firework noise for 2-hour playback, fish behavior in terms of opercula beats and pectoral wing flaps as physiological response were monitored for 96-hours via video image tracking, which was then consecutively repeated with 4-days intervals and 15 repetitions over a period of 60 days. Elevated fish respiration rates after noise exposure, peaked in 24 hours, and declining to initial levels after 72 hours, an indication of stress recovery. In the long-term challenge with multiple exposures to firework noise, fish showed no attunuation to firework noise and presented the same alarm reflex every time of noise exposure with 4-days intervals. It has been evidenced that fireworks noise influenced fish stress and welfare, hence the findings in this study may support ecology-based management of coastal developments. Further, these results raise the question of whether short-term investigations are sufficient for understanding anthropogenic disturbance on aquatic animals.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 2","pages":"e20241277"},"PeriodicalIF":1.1,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143960389","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

Prey availability in a forest fragment in Eastern Amazon: how is it related to the diet of anurans Leptodactylus fuscus and Physalaemus ephippifer? 东亚马逊森林片段的猎物可得性：它与无尾猿、狐尾猿的饮食有何关系？

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-04-14 DOI: 10.1590/0001-3765202520241293

Iago B DA Silva, Cássia C Teixeira, Sílvia R C Pinho, Fabrício S Correa, Maria C Dos Santos-Costa

{"title":"Prey availability in a forest fragment in Eastern Amazon: how is it related to the diet of anurans Leptodactylus fuscus and Physalaemus ephippifer?","authors":"Iago B DA Silva, Cássia C Teixeira, Sílvia R C Pinho, Fabrício S Correa, Maria C Dos Santos-Costa","doi":"10.1590/0001-3765202520241293","DOIUrl":"https://doi.org/10.1590/0001-3765202520241293","url":null,"abstract":"Many studies focus on the diet of anurans and how species consume available food resources. However, few link these data with the resources available in the environment. This gap in information may lead to a partial understanding of the feeding strategies of this group. We evaluate the availability of food resources and analyze how two sympatric anurans, Physalaemus ephippifer and Leptodactylus fuscus, utilize available prey. The research was conducted on the edge of a forest fragment in northeastern Pará state, Brazil, over three years during the rainy season. Specimens of both species were collected, and their diets were evaluated by the frequency of occurrence (FOi) and the feeding importance (VFIi) of each prey category. We also analyzed the relationship between prey availability and the diet of each anuran species. We identified 20 prey categories in the stomachs of P. ephippifer, with Formicidae being the most frequent and important over the three years. In L. fuscus, 19 prey categories were found, with Orthoptera, Formicidae, and Coleoptera being the most significant. We recorded 24 invertebrate categories in the study area, with Collembola, Coleoptera, and Formicidae being the most abundant. Both anurans shared many prey categories but showed distinct preferences in their diet, indicating selective foraging behavior.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 2","pages":"e20241293"},"PeriodicalIF":1.1,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143960313","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

Trihydroxyflavanone isolated from Dipteryx lacunifera Ducke (Fabaceae) as a potential antimalarial drug: An in silico and in vitro approach. 从豆科双翅鸟中分离的三羟基黄酮作为一种潜在的抗疟药物：体外和体外研究。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-04-14 DOI: 10.1590/0001-3765202520230381

Fernanda A Oliveira, Cleberson Lira, Caíque L Duarte, Karla S Guedes, Amanda Luisa DA Fonseca, Ana Claudia S Pinto, Gerardo M Vieira Júnior, Leonardo S Alexandre, Mariana Helena Chaves, Alex G Taranto, Fernando P Varotti, Bruno Antonio M Sanchez

{"title":"Trihydroxyflavanone isolated from Dipteryx lacunifera Ducke (Fabaceae) as a potential antimalarial drug: An in silico and in vitro approach.","authors":"Fernanda A Oliveira, Cleberson Lira, Caíque L Duarte, Karla S Guedes, Amanda Luisa DA Fonseca, Ana Claudia S Pinto, Gerardo M Vieira Júnior, Leonardo S Alexandre, Mariana Helena Chaves, Alex G Taranto, Fernando P Varotti, Bruno Antonio M Sanchez","doi":"10.1590/0001-3765202520230381","DOIUrl":"https://doi.org/10.1590/0001-3765202520230381","url":null,"abstract":"Dipteryx lacunifera is an example of the Brazilian cerrado flora which recently showed promising biological actions, such as antioxidant and antibacterial activities and a potential antimalarial effect. This study evaluated three flavonoids isolated from the fruits kernels of D. lacunifera, 7,3´, 4´-trihydroxyflavone (1), 7,3´,4´-trihydroxyflavanone (2), and (-)-eriodictyol (3). Virtual molecular modeling platforms (in silico), chemotherapy assays with P. falciparum W2 strain, and cytotoxicity assays (in vitro) were used to verify the antimalarial and cytotoxic potential of these molecules. Compound 2 showed the best results of inhibitory concentration against the P. falciparum W2 strain (IC50 = 7.35 μM), with low cytotoxicity against the human fibroblast lineage (WI- 26-VA4) (LC50 > 100 μM) and high selectivity index (IS = 13.61). In silico analysis of the mechanism of action of 2 was performed by selecting the 5 crystallographic complexes with the best binding energy, namely: 1O5X, 2OK8, 2VFA, 4C81, and 4N0Z, suggesting more than one mode of action. The compounds met the ADMET criteria, indicating good bioavailability results. These results may lead this molecule to be submitted to further studies.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 2","pages":"e20230381"},"PeriodicalIF":1.1,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143962300","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

Brazil nut consumption within an energy-restricted diet improved cardiometabolic risk markers in women: a quasi-experimental, controlled study (Brazilian Nuts Study). 在能量限制饮食中食用巴西坚果可改善女性心脏代谢风险指标：一项准实验、对照研究（巴西坚果研究）。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-04-14 DOI: 10.1590/0001-3765202520240631

Alessandra DA Silva, Brenda Kelly S Silveira, Brenda V M DE Freitas, Karina Waskow, Helen Hermana M Hermsdorff, Walmir DA Silva, Josefina Bressan

{"title":"Brazil nut consumption within an energy-restricted diet improved cardiometabolic risk markers in women: a quasi-experimental, controlled study (Brazilian Nuts Study).","authors":"Alessandra DA Silva, Brenda Kelly S Silveira, Brenda V M DE Freitas, Karina Waskow, Helen Hermana M Hermsdorff, Walmir DA Silva, Josefina Bressan","doi":"10.1590/0001-3765202520240631","DOIUrl":"https://doi.org/10.1590/0001-3765202520240631","url":null,"abstract":"Consuming functional foods alongside the energy-restricted diet can be a great ally in weight loss and improving cardiometabolic risk factors. Whether Brazil nut (BN) consumption in the context of energy restriction affects them remains to be answered. We aimed to evaluate the effect of BN within an energy-restricted diet on cardiometabolic risk markers among women. This is an eight-week, quasi-experimental, controlled nutritional intervention study. The women were allocated into two energy-restricted (-500 kcal/d) groups: a control free of BN (n=29) and a BN-group (BNG) (n=27) with 2 units/day of BN (~ 347 µg of selenium). Both groups had similar weight loss, but in the BNG, the serum selenium increased by 276.7% and apolipoprotein A1 increased by 27.4%. In addition, BNG had a more pronounced reduction in liver enzymes, and presented the most preserved percentages of lean and fat-free mass in relation to the control group. Consuming 2 units/day of BN in an 8-week weight loss intervention improved cardiometabolic risk markers in women. Our results suggest that regular consumption of BN during energy-restricted diets may be a strategy to minimize adiposity, preserve lean mass, improve serum selenium status, lipid, and liver metabolism markers, and, consequently, help obesity management and its comorbidities.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 2","pages":"e20240631"},"PeriodicalIF":1.1,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143959489","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

Feeding Ecology of Osteoglossum bicirrhosum (Osteoglossiformes: Osteoglossidae) in a Central Amazon Reserve. 亚马逊中部保护区双颊骨舌蝗摄食生态学研究。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-04-14 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520241121

Paulo Henrique L DE Freitas, Marcia Regina F M Bussons, Iurych Nicholau B Bussons, Fernanda Victoria N Dias, Lucas M Garcês, Elcimar S Sousa, Adriano T DE Oliveira

{"title":"Feeding Ecology of Osteoglossum bicirrhosum (Osteoglossiformes: Osteoglossidae) in a Central Amazon Reserve.","authors":"Paulo Henrique L DE Freitas, Marcia Regina F M Bussons, Iurych Nicholau B Bussons, Fernanda Victoria N Dias, Lucas M Garcês, Elcimar S Sousa, Adriano T DE Oliveira","doi":"10.1590/0001-3765202520241121","DOIUrl":"https://doi.org/10.1590/0001-3765202520241121","url":null,"abstract":"Studies determining the feeding habits of fish are essential for understanding the relationships between fauna components and other aquatic organisms. This study aimed to evaluate the feeding habits of the Arowana Osteoglossum bicirrhosum in the Piranha Sustainable Development Reserve, located in the middle Solimões River, Amazonas state. The research covered different phases of the flood pulse (recession, flooding, flood peak, and dry phase) from September 2015 to May 2016. One hundred stomach samples were collected, with an average standard weight and length of 684.81 ± 257.73g and 44.92 ± 5.91cm, respectively, showing a high Pearson correlation coefficient (p= 0.9373905). Stomach content analysis revealed that 76% of the samples contained food, with 72% consisting of arthropods, 13% plant remains, 10% fish, 3% reptiles, and 2% mammals. The alternation of periods influenced the bioavailability of food in the aquatic environment, with arthropods, mainly insects, being identified as the primary food source for the Arowana. This indicates a generalist and opportunistic feeding behavior with a diet tending towards insectivory.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 2","pages":"e20241121"},"PeriodicalIF":1.1,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143971391","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