Morphfunctional characterization of Brazilian jiu-jitsu practice

O objetivo deste estudo foi caracterizar o perfil morfofuncional de atletas amadores da modalidade Brazilian Jiu-jitsu (BJJ), fazendo uma comparação por sexo. Participaram, 19 praticantes da modalidade (7 mulheres: 21,29 ± 4,68 anos de idade; 25,84 ± 3,90 kg/ m2 de IMC; 22,03 ± 8,20 % de gordura corporal e 12 homens: 22,03 ± 6,04 anos de idade; 23,98 ± 4,08 kg/m2 de IMC; 14,53 ± 8,66 % de gordura corporal) a pelo menos um ano e com nível de graduação entre faixa branca e azul. Estes foram submetidos a avaliações de composição corporal, flexibilidade, força de preensão manual e potência de membros inferiores. Após as avaliações a comparação entre os sexos foi realizada através do teste t Student para amostrar independentes (p≤0,05). Diante da análise as únicas variáveis que apresentaram diferenças significantes foram aquelas relacionadas a capacidade de força de preensão manual (direita: 47,35 ± 8,77N e 30,28 ± 6,65N; esquerda: 40,75 ± 8,45N e 25,57 ± 5,94N) e altura do salto vertical (33,34 ± 4,98cm e 23,33 ± 4,30cm), sendo estatisticamente superiores para os homens. As demais variáveis não apresentaram diferenças significantes. Conclui-se que os homens apresentam maiores níveis de força em comparação as mulheres.The objective of this study was to characterize the morphofunctional profile of Brazilian Jiu-jitsu (BJJ) amateur athletes, making a comparison by gender. 19 practitioners of the modality participated in the study (7 women: 21.29 ± 4.68 years of age, 25.84 ± 3.90 kg/m2 BMI, 22.03 ± 8.20% body fat and 12 men: 22 , 03 ± 6.04 years of age, 23.98 ± 4.08 kg/m2 of BMI, 14.53 ± 8.66% of body fat) for at least one year and with graduation level from white belt to blue. These were submitted to assessments related to body composition and flexibility, manual grip strength and lower limb power. After the evaluations, a comparison between genders was performed through the Student t test to sample independent (p≤0.05). The only variables that presented significant differences were those related to manual grip strength (right - 47.35 ± 8.77N and 30.28 ± 6.65N, left - 40.75 ± 8.45 N and 25.57 ± 5,94N) and height of the vertical jump (33.34 ± 4.98cm and 23.33 ± 4.30cm), being statistically superior for men. The other variables did not present significant differences. We concluded that men have higher levels of strength when compared to women.Facultad de Humanidades y Ciencias de la Educació

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

Catálogo Taxonômico da Fauna do Brasil: setting the baseline knowledge on the animal diversity in Brazil

The limited temporal completeness and taxonomic accuracy of species lists, made available in a traditional manner in scientific publications, has always represented a problem. These lists are invariably limited to a few taxonomic groups and do not represent up-to-date knowledge of all species and classifications. In this context, the Brazilian megadiverse fauna is no exception, and the Catálogo Taxonômico da Fauna do Brasil (CTFB) (http://fauna.jbrj.gov.br/), made public in 2015, represents a database on biodiversity anchored on a list of valid and expertly recognized scientific names of animals in Brazil. The CTFB is updated in near real time by a team of more than 800 specialists. By January 1, 2024, the CTFB compiled 133,691 nominal species, with 125,138 that were considered valid. Most of the valid species were arthropods (82.3%, with more than 102,000 species) and chordates (7.69%, with over 11,000 species). These taxa were followed by a cluster composed of Mollusca (3,567 species), Platyhelminthes (2,292 species), Annelida (1,833 species), and Nematoda (1,447 species). All remaining groups had less than 1,000 species reported in Brazil, with Cnidaria (831 species), Porifera (628 species), Rotifera (606 species), and Bryozoa (520 species) representing those with more than 500 species. Analysis of the CTFB database can facilitate and direct efforts towards the discovery of new species in Brazil, but it is also fundamental in providing the best available list of valid nominal species to users, including those in science, health, conservation efforts, and any initiative involving animals. The importance of the CTFB is evidenced by the elevated number of citations in the scientific literature in diverse areas of biology, law, anthropology, education, forensic science, and veterinary science, among others

Multiple Scenario Generation of Subsurface Models:Consistent Integration of Information from Geophysical and Geological Data throuh Combination of Probabilistic Inverse Problem Theory and Geostatistics

Neutrinos with energies above 1017 eV are detectable with the Surface Detector Array of the Pierre Auger Observatory. The identification is efficiently performed for neutrinos of all flavors interacting in the atmosphere at large zenith angles, as well as for Earth-skimming \u3c4 neutrinos with nearly tangential trajectories relative to the Earth. No neutrino candidates were found in 3c 14.7 years of data taken up to 31 August 2018. This leads to restrictive upper bounds on their flux. The 90% C.L. single-flavor limit to the diffuse flux of ultra-high-energy neutrinos with an E\u3bd-2 spectrum in the energy range 1.0 7 1017 eV -2.5 7 1019 eV is E2 dN\u3bd/dE\u3bd < 4.4 7 10-9 GeV cm-2 s-1 sr-1, placing strong constraints on several models of neutrino production at EeV energies and on the properties of the sources of ultra-high-energy cosmic rays

Caracterização morfofuncional de praticantes do brazilian jiu-jitsu

Objective of this study was to characterize the morphofunctional profile of Brazilian Jiu-jitsu (BJJ) amateur athletes, making a comparison by gender. Participated, 19 practitioners of the modality (7 women: 21.29 ± 4.68 years of age, 25.84 ± 3.90 kg/m2 BMI, 22.03 ± 8.20% body fat and 12 men: 22 , 03 ± 6.04 years of age, 23.98 ± 4.08 kg/m2 of BMI, 14.53 ± 8.66% of body fat) for at least one year and with graduation level between white belt it's blue. These were submitted to assessments related to body composition and flexibility, manual grip strength and lower limb power. After the evaluations the comparison between the gender was performed through the Student t test to sample independent (p≤0.05). The only variables that presented significant differences were those related to manual grip strength (right - 47.35 ± 8.77N and 30.28 ± 6.65N, left - 40.75 ± 8.45 N and 25.57 ± 5,94N) and height of the vertical jump (33.34 ± 4.98cm and 23.33 ± 4.30cm), being statistically superior for men. The other variables did not present significant differences. Concluded that men have higher levels of strength when compared to women.O objetivo deste estudo foi caracterizar o perfil morfofuncional de atletas amadores da modalidade Brazilian Jiu-jitsu (BJJ), fazendo uma comparação por sexo. Participaram, 19 praticantes da modalidade (7 mulheres: 21,29 ± 4,68 anos de idade; 25,84  ± 3,90 kg/m2 de IMC; 22,03 ± 8,20 % de gordura corporal e 12 homens: 22,03 ± 6,04 anos de idade; 23,98 ± 4,08 kg/m2 de IMC; 14,53 ± 8,66 % de gordura corporal) a pelo menos um ano e com ní­vel de graduação entre faixa branca e azul. Estes foram submetidos a avaliações de composição corporal, flexibilidade, força de preensão manual e potência de membros inferiores. Após as avaliações a comparação entre os sexos foi realizada através do teste t Student para amostrar independentes (p≤0,05). Diante da análise as únicas variáveis que apresentaram diferenças significantes foram aquelas relacionadas a capacidade de força de preensão manual (direita: 47,35 ± 8,77N  e 30,28 ± 6,65N; esquerda: 40,75 ± 8,45N e 25,57 ± 5,94N) e altura do salto vertical (33,34 ± 4,98cm e 23,33 ± 4,30cm), sendo estatisticamente superiores para os homens. As demais variáveis não apresentaram diferenças significantes. Conclui-se que os homens apresentam maiores ní­veis de força em comparação as mulheres

Caracterización morfofuncional de practicantes del brazilian jiu-jitsu

Objective of this study was to characterize the morphofunctional profile of Brazilian Jiu-jitsu (BJJ) amateur athletes, making a comparison by gender. Participated, 19 practitioners of the modality (7 women: 21.29 4.68 years of age, 25.84 3.90 kg/m2 BMI, 22.03 8.20 body fat and 12 men: 22 , 03 6.04 years of age, 23.98 4.08 kg/m2 of BMI, 14.53 8.66 of body fat) for at least one year and with graduation level between white belt it's blue. These were submitted to assessments related to body composition and flexibility, manual grip strength and lower limb power. After the evaluations the comparison between the gender was performed through the Student t test to sample independent (p0.05). The only variables that presented significant differences were those related to manual grip strength (right - 47.35 8.77N and 30.28 6.65N, left - 40.75 8.45 N and 25.57 5,94N) and height of the vertical jump (33.34 4.98cm and 23.33 4.30cm), being statistically superior for men. The other variables did not present significant differences. Concluded that men have higher levels of strength when compared to women.O objetivo deste estudo foi caracterizar o perfil morfofuncional de atletas amadores da modalidade Brazilian Jiu-jitsu (BJJ), fazendo uma comparação por sexo. Participaram, 19 praticantes da modalidade (7 mulheres: 21,29 4,68 anos de idade; 25,84 3,90 kg/m2 de IMC; 22,03 8,20 de gordura corporal e 12 homens: 22,03 6,04 anos de idade; 23,98 4,08 kg/m2 de IMC; 14,53 8,66 de gordura corporal) a pelo menos um ano e com nível de graduação entre faixa branca e azul. Estes foram submetidos a avaliações de composição corporal, flexibilidade, força de preensão manual e potência de membros inferiores. Após as avaliações a comparação entre os sexos foi realizada através do teste t Student para amostrar independentes (p0,05). Diante da análise as únicas variáveis que apresentaram diferenças significantes foram aquelas relacionadas a capacidade de força de preensão manual (direita: 47,35 8,77N e 30,28 6,65N; esquerda: 40,75 8,45N e 25,57 5,94N) e altura do salto vertical (33,34 4,98cm e 23,33 4,30cm), sendo estatisticamente superiores para os homens. As demais variáveis não apresentaram diferenças significantes. Conclui-se que os homens apresentam maiores níveis de força em comparação as mulheres