10 research outputs found
Growth And Mineral Nutrition Of Neem ( Azadirachta indica A. Juss.) And Chinaberry Tree (Melia azedarach Linn.) Submitted To Salinity
Este trabalho teve como objetivo verificar os efeitos da salinidade do
solo no crescimento e no ac\ufamulo de macronutrientes e de
s\uf3dio em nim (Azadirachta indica) e cinamomo ( Melia azedarach ).
O experimento foi disposto em delineamento experimental inteiramente
casualizado em arranjo fatorial 2 x 4, sendo duas esp\ue9cies (nim e
cinamomo) e quatro n\uedveis de salinidade (Condutividade
el\ue9trica (C.E.) 0,49 (solo n\ue3o salino); 4,15; 6,33 e 10,45 dS
m-1), com 4 repeti\ue7\uf5es. As plantas cresceram inicialmente em
tubetes e, 60 dias ap\uf3s a emerg\ueancia, foram transferidas para
vasos contendo 3 kg de substrato [solo + esterco (2:1)], de acordo com
o tratamento de salinidade. Ap\uf3s 45 dias foram avaliadas altura
das plantas, mat\ue9ria seca (folhas, caule, parte a\ue9rea (caule
+ folhas), ra\uedzes e total) e ac\ufamulo de N, P, K, Ca, Mg, S e
Na+ na parte a\ue9rea. A salinidade reduziu a altura das plantas em
ambas as esp\ue9cies, mas o efeito foi mais pronunciado no nim.
Eleva\ue7\ue3o na salinidade dos solos causou aumento no
ac\ufamulo de Na+ e redu\ue7\ue3o no ac\ufamulo de
macronutrientes na parte a\ue9rea em ambas as esp\ue9cies,
principalmente no nim. O cinamomo foi mais tolerante aos n\uedveis de
salinidade dos solos do que o nim.The objective of this study was to verify the effects of soil salinity
on growth and nutrient and sodium accumulation in neem (Azadirachta
indica) and cinnamomum ( Melia azedarach ). The experimental
delineation was completely randomized in a 2 x 4 factorial arrangement,
with two species (neem and cinnamomum), four salinity levels
(electrical conductivity 0.49 (non saline soil), 4.15, 6.33 and 10.45
dS m-1) and four replications. Initially, plants were grown in tubes,
and 60 days after emergence, they were transferred to pots containing 3
kg of substrate [soil + manure (2:1)], according to the saline
treatment. After 45 days, plant height, dry matter (leaves, stem, shoot
(stem + leaves), roots and total) and N, P, K, Ca, Mg, S and Na+ shoot
accumulation were evaluated. Salinity reduced the plant height in both
species, but the effect was more pronounced in neem. Increases in soil
salinity caused an increase in the accumulation of Na+ and reduced the
accumulation of nutrients in shoots of both species, especially in
neem. The cinnamomum was more tolerant to salinity levels of soils than
neem
Diretriz da Sociedade Brasileira de Cardiologia sobre Diagnóstico e Tratamento de Pacientes com Cardiomiopatia da Doença de Chagas
This guideline aimed to update the concepts and formulate the standards of conduct and scientific evidence that support them, regarding the diagnosis and treatment of the Cardiomyopathy of Chagas disease, with special emphasis on the rationality base that supported it.
Chagas disease in the 21st century maintains an epidemiological pattern of endemicity in 21 Latin American countries. Researchers and managers from endemic and non-endemic countries point to the need to adopt comprehensive public health policies to effectively control the interhuman transmission of T. cruzi infection, and to obtain an optimized level of care for already infected individuals, focusing on diagnostic and therapeutic opportunistic opportunities.
Pathogenic and pathophysiological mechanisms of the Cardiomyopathy of Chagas disease were revisited after in-depth updating and the notion that necrosis and fibrosis are stimulated by tissue parasitic persistence and adverse immune reaction, as fundamental mechanisms, assisted by autonomic and microvascular disorders, was well established. Some of them have recently formed potential targets of therapies.
The natural history of the acute and chronic phases was reviewed, with enhancement for oral transmission, indeterminate form and chronic syndromes. Recent meta-analyses of observational studies have estimated the risk of evolution from acute and indeterminate forms and mortality after chronic cardiomyopathy. Therapeutic approaches applicable to individuals with Indeterminate form of Chagas disease were specifically addressed. All methods to detect structural and/or functional alterations with various cardiac imaging techniques were also reviewed, with recommendations for use in various clinical scenarios. Mortality risk stratification based on the Rassi score, with recent studies of its application, was complemented by methods that detect myocardial fibrosis.
The current methodology for etiological diagnosis and the consequent implications of trypanonomic treatment deserved a comprehensive and in-depth approach. Also the treatment of patients at risk or with heart failure, arrhythmias and thromboembolic events, based on pharmacological and complementary resources, received special attention. Additional chapters supported the conducts applicable to several special contexts, including t. cruzi/HIV co-infection, risk during surgeries, in pregnant women, in the reactivation of infection after heart transplantation, and others.
Finally, two chapters of great social significance, addressing the structuring of specialized services to care for individuals with the Cardiomyopathy of Chagas disease, and reviewing the concepts of severe heart disease and its medical-labor implications completed this guideline.Esta diretriz teve como objetivo principal atualizar os conceitos e formular as normas de conduta e evidências científicas que as suportam, quanto ao diagnóstico e tratamento da CDC, com especial ênfase na base de racionalidade que a embasou.
A DC no século XXI mantém padrão epidemiológico de endemicidade em 21 países da América Latina. Investigadores e gestores de países endêmicos e não endêmicos indigitam a necessidade de se adotarem políticas abrangentes, de saúde pública, para controle eficaz da transmissão inter-humanos da infecção pelo T. cruzi, e obter-se nível otimizado de atendimento aos indivíduos já infectados, com foco em oportunização diagnóstica e terapêutica.
Mecanismos patogênicos e fisiopatológicos da CDC foram revisitados após atualização aprofundada e ficou bem consolidada a noção de que necrose e fibrose sejam estimuladas pela persistência parasitária tissular e reação imune adversa, como mecanismos fundamentais, coadjuvados por distúrbios autonômicos e microvasculares. Alguns deles recentemente constituíram alvos potenciais de terapêuticas.
A história natural das fases aguda e crônica foi revista, com realce para a transmissão oral, a forma indeterminada e as síndromes crônicas. Metanálises recentes de estudos observacionais estimaram o risco de evolução a partir das formas aguda e indeterminada e de mortalidade após instalação da cardiomiopatia crônica. Condutas terapêuticas aplicáveis aos indivíduos com a FIDC foram abordadas especificamente. Todos os métodos para detectar alterações estruturais e/ou funcionais com variadas técnicas de imageamento cardíaco também foram revisados, com recomendações de uso nos vários cenários clínicos. Estratificação de risco de mortalidade fundamentada no escore de Rassi, com estudos recentes de sua aplicação, foi complementada por métodos que detectam fibrose miocárdica.
A metodologia atual para diagnóstico etiológico e as consequentes implicações do tratamento tripanossomicida mereceram enfoque abrangente e aprofundado. Também o tratamento de pacientes em risco ou com insuficiência cardíaca, arritmias e eventos tromboembólicos, baseado em recursos farmacológicos e complementares, recebeu especial atenção. Capítulos suplementares subsidiaram as condutas aplicáveis a diversos contextos especiais, entre eles o da co-infecção por T. cruzi/HIV, risco durante cirurgias, em grávidas, na reativação da infecção após transplante cardíacos, e outros.
Por fim, dois capítulos de grande significado social, abordando a estruturação de serviços especializados para atendimento aos indivíduos com a CDC, e revisando os conceitos de cardiopatia grave e suas implicações médico-trabalhistas completaram esta diretriz. 
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
Growth And Mineral Nutrition Of Neem ( Azadirachta indica A. Juss.) And Chinaberry Tree (Melia azedarach Linn.) Submitted To Salinity
Este trabalho teve como objetivo verificar os efeitos da salinidade do
solo no crescimento e no acúmulo de macronutrientes e de
sódio em nim (Azadirachta indica) e cinamomo ( Melia azedarach ).
O experimento foi disposto em delineamento experimental inteiramente
casualizado em arranjo fatorial 2 x 4, sendo duas espécies (nim e
cinamomo) e quatro níveis de salinidade (Condutividade
elétrica (C.E.) 0,49 (solo não salino); 4,15; 6,33 e 10,45 dS
m-1), com 4 repetições. As plantas cresceram inicialmente em
tubetes e, 60 dias após a emergência, foram transferidas para
vasos contendo 3 kg de substrato [solo + esterco (2:1)], de acordo com
o tratamento de salinidade. Após 45 dias foram avaliadas altura
das plantas, matéria seca (folhas, caule, parte aérea (caule
+ folhas), raízes e total) e acúmulo de N, P, K, Ca, Mg, S e
Na+ na parte aérea. A salinidade reduziu a altura das plantas em
ambas as espécies, mas o efeito foi mais pronunciado no nim.
Elevação na salinidade dos solos causou aumento no
acúmulo de Na+ e redução no acúmulo de
macronutrientes na parte aérea em ambas as espécies,
principalmente no nim. O cinamomo foi mais tolerante aos níveis de
salinidade dos solos do que o nim.The objective of this study was to verify the effects of soil salinity
on growth and nutrient and sodium accumulation in neem (Azadirachta
indica) and cinnamomum ( Melia azedarach ). The experimental
delineation was completely randomized in a 2 x 4 factorial arrangement,
with two species (neem and cinnamomum), four salinity levels
(electrical conductivity 0.49 (non saline soil), 4.15, 6.33 and 10.45
dS m-1) and four replications. Initially, plants were grown in tubes,
and 60 days after emergence, they were transferred to pots containing 3
kg of substrate [soil + manure (2:1)], according to the saline
treatment. After 45 days, plant height, dry matter (leaves, stem, shoot
(stem + leaves), roots and total) and N, P, K, Ca, Mg, S and Na+ shoot
accumulation were evaluated. Salinity reduced the plant height in both
species, but the effect was more pronounced in neem. Increases in soil
salinity caused an increase in the accumulation of Na+ and reduced the
accumulation of nutrients in shoots of both species, especially in
neem. The cinnamomum was more tolerant to salinity levels of soils than
neem
GROWTH AND MINERAL NUTRITION OF NEEM (Azadirachta indica A. Juss.) AND CINNAMOMUM (Melia azedarach Linn.) SUBMITTED TO SALINITY
<p>The objective of this study was to verify the effects of soil salinity on growth and nutrient and sodium accumulation in neem (<em>Azadirachta indica</em>) and cinnamomum (<em>Melia azedarach</em>). The experimental delineation was completely randomized in a 2 x 4 factorial arrangement, with two species (neem and cinnamomum), four salinity levels (electrical conductivity 0.49 (non saline soil), 4.15, 6.33 and 10.45 dS m<sup>-1</sup>) and four replications. Initially, plants were grown in tubes, and 60 days after emergence, they were transferred to pots containing 3 kg of substrate [soil + manure (2:1)], according to the saline treatment. After 45 days, plant height, dry matter (leaves, stem, shoot (stem + leaves), roots and total) and N, P, K, Ca, Mg, S and Na<sup>+</sup> shoot accumulation were evaluated. Salinity reduced the plant height in both species, but the effect was more pronounced in neem. Increases in soil salinity caused an increase in the accumulation of Na + and reduced the accumulation of nutrients in shoots of both species, especially in neem. The cinnamomum was more tolerant to salinity levels of soils than neem.</p
Crescimento e nutrição mineral do nim (<i>Azadirachta indica</i> A. Juss.) e cinamomo (<i>Melia azedarach</i> Linn.) submetidos à salinidade.
The objective of this study was to verify the effects of soil salinity on growth and nutrient and sodium accumulation in neem (Azadirachta indica) and cinnamomum (Melia azedarach). The experimental delineation was completely randomized in a 2 x 4 factorial arrangement, with two species (neem and cinnamomum), four salinity levels (electrical conductivity 0.49 (non saline soil), 4.15, 6.33 and 10.45 dS m- 1) and four replications. Initially, plants were grown in tubes, and 60 days after emergence, they were transferred to pots containing 3 kg of substrate [soil + manure (2:1)], according to the saline treatment. After 45 days, plant height, dry matter (leaves, stem, shoot (stem + leaves), roots and total) and N, P, K, Ca, Mg, S and Na+ shoot accumulation were evaluated. Salinity reduced the plant height in both species, but the effect was more pronounced in neem. Increases in soil salinity caused an increase in the accumulation of Na + and reduced the accumulation of nutrients in shoots of both species, especially in neem. The cinnamomum was more tolerant to salinity levels of soils than neem
Diretriz da SBC sobre Diagnóstico e Tratamento de Pacientes com Cardiomiopatia da Doença de Chagas – 2023
Note: These guidelines are for information purposes and should not replace the clinical judgment of a physician, who must ultimately determine the appropriate treatment for each patient
Neotropical freshwater fisheries : A dataset of occurrence and abundance of freshwater fishes in the Neotropics
The Neotropical region hosts 4225 freshwater fish species, ranking first among the world's most diverse regions for freshwater fishes. Our NEOTROPICAL FRESHWATER FISHES data set is the first to produce a large-scale Neotropical freshwater fish inventory, covering the entire Neotropical region from Mexico and the Caribbean in the north to the southern limits in Argentina, Paraguay, Chile, and Uruguay. We compiled 185,787 distribution records, with unique georeferenced coordinates, for the 4225 species, represented by occurrence and abundance data. The number of species for the most numerous orders are as follows: Characiformes (1289), Siluriformes (1384), Cichliformes (354), Cyprinodontiformes (245), and Gymnotiformes (135). The most recorded species was the characid Astyanax fasciatus (4696 records). We registered 116,802 distribution records for native species, compared to 1802 distribution records for nonnative species. The main aim of the NEOTROPICAL FRESHWATER FISHES data set was to make these occurrence and abundance data accessible for international researchers to develop ecological and macroecological studies, from local to regional scales, with focal fish species, families, or orders. We anticipate that the NEOTROPICAL FRESHWATER FISHES data set will be valuable for studies on a wide range of ecological processes, such as trophic cascades, fishery pressure, the effects of habitat loss and fragmentation, and the impacts of species invasion and climate change. There are no copyright restrictions on the data, and please cite this data paper when using the data in publications
NEOTROPICAL ALIEN MAMMALS: a data set of occurrence and abundance of alien mammals in the Neotropics
Biological invasion is one of the main threats to native biodiversity. For a species to become invasive, it must be voluntarily or involuntarily introduced by humans into a nonnative habitat. Mammals were among first taxa to be introduced worldwide for game, meat, and labor, yet the number of species introduced in the Neotropics remains unknown. In this data set, we make available occurrence and abundance data on mammal species that (1) transposed a geographical barrier and (2) were voluntarily or involuntarily introduced by humans into the Neotropics. Our data set is composed of 73,738 historical and current georeferenced records on alien mammal species of which around 96% correspond to occurrence data on 77 species belonging to eight orders and 26 families. Data cover 26 continental countries in the Neotropics, ranging from Mexico and its frontier regions (southern Florida and coastal-central Florida in the southeast United States) to Argentina, Paraguay, Chile, and Uruguay, and the 13 countries of Caribbean islands. Our data set also includes neotropical species (e.g., Callithrix sp., Myocastor coypus, Nasua nasua) considered alien in particular areas of Neotropics. The most numerous species in terms of records are from Bos sp. (n = 37,782), Sus scrofa (n = 6,730), and Canis familiaris (n = 10,084); 17 species were represented by only one record (e.g., Syncerus caffer, Cervus timorensis, Cervus unicolor, Canis latrans). Primates have the highest number of species in the data set (n = 20 species), partly because of uncertainties regarding taxonomic identification of the genera Callithrix, which includes the species Callithrix aurita, Callithrix flaviceps, Callithrix geoffroyi, Callithrix jacchus, Callithrix kuhlii, Callithrix penicillata, and their hybrids. This unique data set will be a valuable source of information on invasion risk assessments, biodiversity redistribution and conservation-related research. There are no copyright restrictions. Please cite this data paper when using the data in publications. We also request that researchers and teachers inform us on how they are using the data
Characterisation of microbial attack on archaeological bone
As part of an EU funded project to investigate the factors influencing bone preservation in the archaeological record, more than 250 bones from 41 archaeological sites in five countries spanning four climatic regions were studied for diagenetic alteration. Sites were selected to cover a range of environmental conditions and archaeological contexts. Microscopic and physical (mercury intrusion porosimetry) analyses of these bones revealed that the majority (68%) had suffered microbial attack. Furthermore, significant differences were found between animal and human bone in both the state of preservation and the type of microbial attack present. These differences in preservation might result from differences in early taphonomy of the bones. © 2003 Elsevier Science Ltd. All rights reserved