Anais da Academia Brasileira de Ciencias最新文献_第10页

In vitro evaluation of the antioxidant, antibacterial and cytotoxic activities of Osteospermum moniliferum L. leaf and stem extracts. 骨精叶和茎提取物抗氧化、抗菌和细胞毒活性的体外评价。

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-07-24 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620241487

Yanga Mhlomi, Yougasphree Naidoo, Kubendran Kista Naidoo, Thobayet Alshahrani, Aaqib Shaheen, Yaser Hassan Dewir

{"title":"In vitro evaluation of the antioxidant, antibacterial and cytotoxic activities of Osteospermum moniliferum L. leaf and stem extracts.","authors":"Yanga Mhlomi, Yougasphree Naidoo, Kubendran Kista Naidoo, Thobayet Alshahrani, Aaqib Shaheen, Yaser Hassan Dewir","doi":"10.1590/0001-3765202620241487","DOIUrl":"https://doi.org/10.1590/0001-3765202620241487","url":null,"abstract":"Osteospermum moniliferum is an unexplored shrub with regard to its pharmacological properties. In this study, the antioxidant potential of O. moniliferum was evaluated using the 2,2 diphenyl-1-picrylhydrazyl (DPPH) and ferric-reducing antioxidant power (FRAP) assays. The DPPH assay indicated that the stem methanolic extract demonstrated the most pronounced scavenging capability (83.16%) at the minimal concentration of 15 mg/mL, with IC50 values recorded at 5.08 mg/mL. The IC50 values obtained from the FRAP assay were suboptimal for the leaf extracts (>1000 µg/mL), whereas the stem extracts exhibited remarkable activity, with values of 2.75 mg/mL for methanol, 3.52 mg/mL for chloroform, and 4.49 mg/mL for hexane extracts. The cytotoxicity was evaluated against three human cell lines, viz. breast adenocarcinoma (MCF-7), embryonic kidney (HEK293) and lung carcinoma (A549), using the (MTT) assay. Moderate activity was observed for the leaf (44.66±0.09 µg/µL) and stem (47.37±0.08 µg/µL) hexane extracts for the HEK293 cell line. In contrast, stem methanol, leaf methanol, leaf chloroform and stem chloroform extracts had low cytotoxic activity against the MCF-7 cell line. All extracts exhibited promising antibacterial activity against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. These findings could potentially contribute to the advancement of naturally derived compounds used in healthcare.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 suppl 1","pages":"e20241487"},"PeriodicalIF":1.2,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148618194","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

Inclusion of maize distillers' dried grains with solubles (DDGS) associated with the use of metabolisability-enhancing additives in the diet of laying quails. 在产蛋鹌鹑日粮中加入玉米酒糟干颗粒和可溶性物（DDGS）与使用代谢增强添加剂有关。

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-07-24 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620241483

Marcos Adriano P Barbosa, Vinicius Ricardo C DE Paula, Marina X L Oliveira, Aires S Silva, Daiane O Grieser, Simara Marcia Marcato

{"title":"Inclusion of maize distillers' dried grains with solubles (DDGS) associated with the use of metabolisability-enhancing additives in the diet of laying quails.","authors":"Marcos Adriano P Barbosa, Vinicius Ricardo C DE Paula, Marina X L Oliveira, Aires S Silva, Daiane O Grieser, Simara Marcia Marcato","doi":"10.1590/0001-3765202620241483","DOIUrl":"https://doi.org/10.1590/0001-3765202620241483","url":null,"abstract":"This study aimed to incorporate maize distillers' dried grains with solubles (DDGS) into the diet of laying Japanese quail, along with two feed additives, xylanase and a metabolizability enhancer based on clay and algae. A completely randomized design with four treatments, 7 replications, and 6 birds per experimental unit. The treatments were: control, reference diet; DDGS, diet formulated with the inclusion of 150 g/kg DDGS; DDGS + xi, diet formulated with the inclusion of 150 g/kg DDGS and 1 g/kg xylanase enzyme (on top); DDGS + caa, diet formulated with the inclusion of 150 g/kg DDGS and 10 g/kg clay and algae-based metabolizability enhancer (on top). The productive performance of the birds was analyzed in three periods of 21 days each, the quality of the eggs was also measured at the end of each period. No significant differences were observed between the treatments for the variables analyzed. However, for the production cost of feed, the diets containing DDGS showed savings of R$ 10 per 100 kg of feed. Maize DDGS can be included in the diet of laying Japanese quail at 150 g/kg because it has a lower production cost and does not affect egg performance and quality.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 suppl 1","pages":"e20241483"},"PeriodicalIF":1.2,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148618169","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

Evaluating the Relationship Between Plasma Cell-Free Mitochondrial DNA (cf-mtDNA) Levels and COVID-19 Severity: A Systematic Review and Meta-Analysis. 评估无浆细胞线粒体DNA （cf-mtDNA）水平与COVID-19严重程度之间的关系：一项系统综述和荟萃分析

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-07-24 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620251250

Felipe C DE Souza, Karyne P DE Souza, Christianne B V Scaramello

{"title":"Evaluating the Relationship Between Plasma Cell-Free Mitochondrial DNA (cf-mtDNA) Levels and COVID-19 Severity: A Systematic Review and Meta-Analysis.","authors":"Felipe C DE Souza, Karyne P DE Souza, Christianne B V Scaramello","doi":"10.1590/0001-3765202620251250","DOIUrl":"10.1590/0001-3765202620251250","url":null,"abstract":"The objective of the study was to evaluate the convergence between cell-free mitochondrial DNA (cf-mtDNA) and COVID-19. This was a systematic review and meta-analysis of cohort and cross-sectional studies, considering the best level of evidence available and the protocol was registered in PROSPERO (CRD 42024508173). After the criteria were established, the search encompassed three databases (MEDLINE, EMBASE, and Web of Science) to identify studies that evaluated the possible convergence between cf-mtDNA and the development of COVID-19, verifying its relationship with survival and severity. A Microsoft Excel spreadsheet was used for data extraction, and R software for analysis. Risk of bias was assessed using the Joanna Briggs Institute (JBI) critical appraisal checklists. After the identification and screening processes, eleven studies were selected for the final analysis, that revealed a convergence between elevated levels of cf-mtDNA and the development of COVID-19 (MD=0.70, IC95% 0.39-1.01, p<0.001) and its relationship with the disease severity (MD=1.08, IC95% 0.35-1.82, p=0.004), but not with survival (MD=0.58, IC95% -0.24-1.41, p=0.16). Conclusions: These findings contribute to a better understanding of cf-mtDNA's role in COVID-19 pathogenesis, its potential as a promising biomarker, and pave the way for the identification of new therapeutic targets.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 suppl 1","pages":"e20251250"},"PeriodicalIF":1.2,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148618210","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

Ecophysiological responses of Ulva lactuca to the effect of salt stress: a short-term experimental study. 乳酸Ulva对盐胁迫的生理生态响应：短期实验研究。

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-07-24 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620250965

Jenifer S Carneiro, Warmiston C Gomes, Júlia Fanny J Resende, Vinícius P DE Oliveira

{"title":"Ecophysiological responses of Ulva lactuca to the effect of salt stress: a short-term experimental study.","authors":"Jenifer S Carneiro, Warmiston C Gomes, Júlia Fanny J Resende, Vinícius P DE Oliveira","doi":"10.1590/0001-3765202620250965","DOIUrl":"https://doi.org/10.1590/0001-3765202620250965","url":null,"abstract":"Ulva lactuca is a species that is widely distributed in coastal environments, having been recognized for its role as a primary producer, bioindicator, and source of bioactive compounds, as well as been known for its applications in the food, pharmaceutical and bioremediation industries. This study evaluated the effects of hypersaline stress on cultured specimens of U. lactuca exposed to three salinity levels (35, 45, and 55 PSU) for 48 hours under controlled laboratory conditions. The following parameters were analyzed: biomass, growth rate, water nutrients, effective quantum yield of photosystem II (YII), chlorophylls a and b, carotenoids, carbon and nitrogen contents, and the C:N ratio. Results indicated that high salinity (55 PSU) significantly reduced biomass, growth rate, and nutrient assimilation. Although photosynthetic performance (YII) and pigment levels did not vary significantly, the C:N ratio increased to 11:1 under this treatment, suggesting changes in the physiological status of the alga. Despite these alterations, U. lactuca remained physiologically active, indicating compensatory mechanisms in response to short-term hypersaline stress. These findings highlight the species' resilience and its relevance as a model in studies of tolerance to environmental variation.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 suppl 1","pages":"e20250965"},"PeriodicalIF":1.2,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148618198","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

Sampling bias in sex ratio and ovarian maturation of Calliphoridae and Mesembrinellidae (Diptera): influence of trap height and bait type in the Brazilian Amazon. 巴西亚马逊地区双翅目蠓科和膜蠓科性别比例和卵巢成熟抽样偏差：陷阱高度和饵料类型的影响。

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-07-20 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620250454

Bruna L B Façanha, Rony P S Almeida, José R P Sousa, Leandro Juen, Maria C Esposito

{"title":"Sampling bias in sex ratio and ovarian maturation of Calliphoridae and Mesembrinellidae (Diptera): influence of trap height and bait type in the Brazilian Amazon.","authors":"Bruna L B Façanha, Rony P S Almeida, José R P Sousa, Leandro Juen, Maria C Esposito","doi":"10.1590/0001-3765202620250454","DOIUrl":"https://doi.org/10.1590/0001-3765202620250454","url":null,"abstract":"Calliphoridae and Mesembrinellidae flies play a key role in nutrient cycling and environmental sanitation. Their distribution is shaped by vertical resource availability and species-specific biological traits. Understanding the efficiency and selectivity of sampling methods is essential to reveal distribution patterns and corrected sampling biases, enabling more accurate estimates of population density and resource use. We assessed the abundance of calliphorids and mesembrinelids females and males in traps with two types of baits (bovine lung and fermented banana) exposed at two heights (0.6 m and 10 m) above the ground, as well as the ovarian development of females in each treatment. Statistically significant differences were observed in sex ratios and ovarian development. Females of Calliphoridae and Mesembrinellidae in vitellogenic stages were more abundant in the protein baits at 0.6m above the ground, while male calliphorids predominated in banana baits irrespective of height. Additionally, male mesembrinelids were more abundant in banana baits placed at 10m above the ground. The results of this study provide important insights into the biological patterns of the two families of sarcosaprophagous flies, revealing potential reproductive substrates, the efficiency of different sampling methods, and the importance of considering the interaction between sexual behavior, physiological state, and resource availability.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 2","pages":"e20250454"},"PeriodicalIF":1.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148547773","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

Geographical distribution and new records of Ariamnes longissimus keyserling, 1891 (Araneae, Theridiidae) in South America. 标题南美洲长尾蛛的地理分布及新记录（蛛目，蛛科）。

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-07-20 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620250891

Danrlei S Soares, José Iago Muniz, Maria Dandara C Martins, Alyne D DA Silva, Carlos Eduardo R D Alencar

{"title":"Geographical distribution and new records of Ariamnes longissimus keyserling, 1891 (Araneae, Theridiidae) in South America.","authors":"Danrlei S Soares, José Iago Muniz, Maria Dandara C Martins, Alyne D DA Silva, Carlos Eduardo R D Alencar","doi":"10.1590/0001-3765202620250891","DOIUrl":"10.1590/0001-3765202620250891","url":null,"abstract":"Ariamnes longissimus plays a relevant ecological role as a predator, yet its distribution remains underestimated, reflecting knowledge gaps. This study updates its distribution, reports new occurrences, and discusses biogeographic implications. Primary and secondary data (118 records) were compiled, georeferenced, and mapped according to biomes and political divisions. We report the first occurrence in Bahia (Northeast Brazil) and in the Cerrado. The species occurs in Argentina, Peru, and 10 Brazilian states, predominantly in the Atlantic Forest (78%) and Pampas (16%), with additional records in the Amazon and Cerrado. The concentration of records in southern and southeastern Brazil (94%) suggests either sampling bias or historical barriers, whereas its rarity in the Cerrado and absence in the Caatinga/Chaco indicate an association with humid environments. This distribution may be linked to paleoecological corridors between the Amazon and Atlantic Forest during humid periods of the Miocene-Pleistocene. We conclude that the distribution of A. longissimus is broader than previously expected but remains underestimated, with ecological plasticity evidenced by its occurrence across multiple biomes.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 2","pages":"e20250891"},"PeriodicalIF":1.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148547595","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

Ephemeroptera Along Altitudinal Gradients: a Scientometric Review. 沿海拔梯度的蜉蝣目：科学计量学综述。

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-07-20 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620251033

Caio Fernando Dotto, Renato T Martins, Lívia Maria Fusari

{"title":"Ephemeroptera Along Altitudinal Gradients: a Scientometric Review.","authors":"Caio Fernando Dotto, Renato T Martins, Lívia Maria Fusari","doi":"10.1590/0001-3765202620251033","DOIUrl":"https://doi.org/10.1590/0001-3765202620251033","url":null,"abstract":"Altitude is a key environmental factor influencing ecological patterns and biodiversity in ecosystems. In aquatic organisms, taxonomic richness typically declines with increasing altitude, although studies on Ephemeroptera show variability in this trend. To better understand this relationship and identify research gaps, we conducted a literature review using the Web of Science database using the terms \"Ephemeroptera\", \"Mayfl*\", \"watercourse\" and \"altitude\" in English, Portuguese, and Spanish, complemented with data from a global study on aquatic insects. Out of 228 identified articles, 74 met our criteria. The most relevant journals were Freshwater Biology (n = 11) and Hydrobiologia (n = 5). Studies were concentrated in the Palearctic (40.5%) and Neotropical (29.7%) regions, with Algeria (n = 6), Slovakia (n = 4), Ecuador (n = 8), and Argentina (n = 8) as the most studied countries. Most studies investigated the influence of environmental factors on community composition and diversity (n = 35). Only ~30% focused exclusively on Ephemeroptera, emphasizing nymph stages and species-level taxonomy. Sampling was concentrated at up to 20 sites (n = 42) at elevations below 3,000 m. Our analysis confirms that Ephemeroptera species richness, genus richness, and overall abundance significantly decline at higher elevations.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 2","pages":"e20251033"},"PeriodicalIF":1.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148547636","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

Palometa fish (Serrasalmus maculatus) meat: Amino acids profile by gas chromatography-mass spectrometry, pulping and application in salty cookies. 鱼肉：氨基酸的气相色谱-质谱分析、制浆及在咸饼干中的应用。

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-07-20 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620250376

Graciela Salete Centenaro, Betânia N Dos Santos, Elize Aparecida S Musachio, Kassandra F DA Silva, Verônica Bueno Ribas, João Pedro S Cunha, Carlos Borges Filho, Cristiano R DE Menezes, Júnior M Furlan

{"title":"Palometa fish (Serrasalmus maculatus) meat: Amino acids profile by gas chromatography-mass spectrometry, pulping and application in salty cookies.","authors":"Graciela Salete Centenaro, Betânia N Dos Santos, Elize Aparecida S Musachio, Kassandra F DA Silva, Verônica Bueno Ribas, João Pedro S Cunha, Carlos Borges Filho, Cristiano R DE Menezes, Júnior M Furlan","doi":"10.1590/0001-3765202620250376","DOIUrl":"https://doi.org/10.1590/0001-3765202620250376","url":null,"abstract":"Palometa (Serrasalmus maculatus) is a predatory freshwater fish that is abundant in South America. Palometa is rarely consumed and has low commercial value because of its short storage time and low acceptability due to the large number of small bones. Despite being a good source of protein, the amino acid profile of this meat remains unknown. This study analyzed the amino acid profile of palometa meat using gas chromatography-mass spectrometry. The meat was also pulped and applied to salty cookies. The amino acid concentration range was 2.82 (glutamine) to 234.17 (glutamic acid) mg g-1 of protein. All essential amino acids were detected in the meat, pulp, and cookies, except for tryptophan, and lysine and leucine were prominent. The cookies with 10% pulp presented an increase in lysine, isoleucine, and leucine compared to the standard, and the chemical score demonstrated that palometa is a good source of threonine. The sensory attributes of the cookies showed an acceptance rate of over 70.0%. In conclusion, the development of salty cookies can be a way to incorporate palometa fish, with high protein quality, in food formulations, valuing this underutilized raw material and being a strategy to increase fish consumption in the population.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 2","pages":"e20250376"},"PeriodicalIF":1.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148547735","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 Digital Phenotype for Classification of Self-Reported Anxiety. 自我报告焦虑分类的数字表型分析。

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-07-20 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620250023

Danilo A DE Meneses, Luiggi A B Bonato, Douglas A DE Meneses, Joel Jonathan C Tavares, Luiz Carlos S Lopez

{"title":"Analysis of Digital Phenotype for Classification of Self-Reported Anxiety.","authors":"Danilo A DE Meneses, Luiggi A B Bonato, Douglas A DE Meneses, Joel Jonathan C Tavares, Luiz Carlos S Lopez","doi":"10.1590/0001-3765202620250023","DOIUrl":"https://doi.org/10.1590/0001-3765202620250023","url":null,"abstract":"Digital phenotypes are behavioral patterns inferred from digital data, which have significantly contributed to eHealth research. Machine learning has proven effective in tracking these patterns; however, psychophysiological variables are still underutilized in identifying digital phenotypes. The objective of this study was to test the machine learning algorithms XGBoost, AdaBoost, RFC, and GaussianNB in classifying digital phenotypes of severe anxiety. Data from 360 volunteers, aged between 18 and 68 years of both sexes, were collected through self-report scales via the Neuropesquisa app, which simultaneously captured psychophysiological data, such as response time, accelerometer, and gyroscope readings. Scores from the DAAS-21 scale were used to identify individuals with severe anxiety. The results indicated that all four algorithms detected the digital phenotype with an accuracy greater than 75%. The RFC and GaussianNB classifiers achieved the highest accuracies, 81.48% and 80.56%, respectively, with f1 scores of 44.4% and 60.38%, and AUCs of 79% and 83% on the ROC curves. We conclude that the GaussianNB algorithm was the most effective in predicting the digital phenotype of severe anxiety.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 2","pages":"e20250023"},"PeriodicalIF":1.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148547547","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

Growth and Reproductive Dynamics of the Tropical Urban Lichen Pyxine petricola in Central Brazil. 巴西中部热带城市地衣Pyxine petricola的生长和繁殖动态。

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-07-20 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620251007

Victor B Rezende, Jean Marc T Pineda, Josiane V C Theodoro, Widinei A Fernandes, Natália M Koch, Aline P Lorenz

{"title":"Growth and Reproductive Dynamics of the Tropical Urban Lichen Pyxine petricola in Central Brazil.","authors":"Victor B Rezende, Jean Marc T Pineda, Josiane V C Theodoro, Widinei A Fernandes, Natália M Koch, Aline P Lorenz","doi":"10.1590/0001-3765202620251007","DOIUrl":"https://doi.org/10.1590/0001-3765202620251007","url":null,"abstract":"This study investigates the growth and reproductive strategies of the foliose lichen Pyxine petricola in the urban environment of Campo Grande, MS, Brazil, addressing a knowledge gap regarding its response to meteorological variation and urban environmental stressors. Over a two-year period, we monitored 13 individual thalli, analyzing growth dynamics, reproductive investment, and environmental associations. On average, thalli expanded more than 3.32 cm² per year and produced approximately 93 apothecia annually. Despite some individual variability, three thalli consistently exhibited high growth and reproductive output. Our results show that sexual reproduction in P. petricola does not necessarily reduce vegetative growth. Environmental variables-particularly total rainfall-were positively correlated with both thallus expansion and apothecia production. Additionally, lichen mortality mirrored host tree mortality, emphasizing the role of phorophyte viability. These findings offer novel insights into P. petricola's adaptive capacity in urban settings and reinforce the value of lichens as sensitive indicators for environmental monitoring.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 2","pages":"e20251007"},"PeriodicalIF":1.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148547674","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