Absorção de nitrogênio, fósforo, potássio, cálcio e magnésio pela cenoura ( Daucus carota)

Uptake of N, P, K, Ca, Mg in carrot (Daucus carota L. var. Shin Kurada) was studied for plants grown in polyethylene pots. A fertilized hydromorphic soil limed to pH 5.7 was used. Plant parts were sampled every eight days, commencing eight days after germination and continuing until the end of the production cycle. Aerial parts, edible roots, and nonedible roots were harvested separately and analyzed for N, P, K, Ca, and Mg. Macronutrient uptake by the plant was observed to be small for 32 days after germination. It then increased gradually as the plant approached maturity. Calcium was found to be concentrated in the aerial parts while magnesium was somewhat concentrated in the roots. The total amounts of phosphorus and magnesium absorbed by the plant were almost equal, increasing throughout the growing period. The concentrations of nitrogen and potassium in the aerial parts of the plant showed a marked decrease 72 days after germination.A absorção dos macronutrientes N, P, K, Ca e Mg pela cenoura (Dancus carota L. var. Shin Kurada) foi estudada em plantas cultivadas em vaso de polietileno, contendo um solo hidromórfico adubado e com correção de acidez. A amostragem da planta, parte aérea e raiz, foi iniciada 8 dias após a germinação, continuando de 8 em 8 dias até os 80 dias de ciclo vegetativo. O aparecimento da cenoura, parte comestível, foi verificado aos 32 dias depois da germinação. Aos 40 dias de ciclo vegetativo, foi possível colher e analisar a cenoura-raiz. Observou-se que a absorção de nutrientes até aos 32 dias foi reduzida, aumentando a seguir, acompanhando o crescimento da planta. A maior percentagem de cálcio foi encontrada na parte aérea, enquanto que o Mg se concentrou mais nas raízes secundárias. Os teores de nitrogênio e potássio na parte aérea decresceram no final do ciclo, O P e Mg foram extraídos pela planta em quantidades menores e quase iguais

POTENTIAL EFFECTS OF WHOLE-BODY VIBRATION EXERCISES ON BLOOD FLOW KINETICS OF DIFFERENT POPULATIONS: A SYSTEMATIC REVIEW WITH A SUITABLE APPROACH

Background: The ability to control skin blood flow decreases with advancing age and some clinical disorders, as in diabetes and in rheumatologic diseases. Feasible clinical strategies such as whole-body vibration exercise (WBVE) are being used without a clear understanding of its effects. The aim of the present study is to review the effects of the WBVE on blood flow kinetics and its feasibility in different populations. Material and Methods: The level of evidence (LE) of selected papers in PubMed and/or PEDRo databases was determined. We selected randomized, controlled trials in English to be evaluated. Results: Six studies had LE II, one had LE III-2 and one III-3 according to the NHMRC. A great variability among the protocols was observed but also in the assessment devices; therefore, more research about this topic is warranted. Conclusion: Despite the limitations, it is can be concluded that the use of WBVE has proven to be a safe and useful strategy to improve blood flow. However, more studies with greater methodological quality are needed to clearly define the more suitable protocols

NEOTROPICAL CARNIVORES: a data set on carnivore distribution in the Neotropics

Mammalian carnivores are considered a key group in maintaining ecological health and can indicate potential ecological integrity in landscapes where they occur. Carnivores also hold high conservation value and their habitat requirements can guide management and conservation plans. The order Carnivora has 84 species from 8 families in the Neotropical region: Canidae; Felidae; Mephitidae; Mustelidae; Otariidae; Phocidae; Procyonidae; and Ursidae. Herein, we include published and unpublished data on native terrestrial Neotropical carnivores (Canidae; Felidae; Mephitidae; Mustelidae; Procyonidae; and Ursidae). NEOTROPICAL CARNIVORES is a publicly available data set that includes 99,605 data entries from 35,511 unique georeferenced coordinates. Detection/non-detection and quantitative data were obtained from 1818 to 2018 by researchers, governmental agencies, non-governmental organizations, and private consultants. Data were collected using several methods including camera trapping, museum collections, roadkill, line transect, and opportunistic records. Literature (peer-reviewed and grey literature) from Portuguese, Spanish and English were incorporated in this compilation. Most of the data set consists of detection data entries (n = 79,343; 79.7%) but also includes non-detection data (n = 20,262; 20.3%). Of those, 43.3% also include count data (n = 43,151). The information available in NEOTROPICAL CARNIVORES will contribute to macroecological, ecological, and conservation questions in multiple spatio-temporal perspectives. As carnivores play key roles in trophic interactions, a better understanding of their distribution and habitat requirements are essential to establish conservation management plans and safeguard the future ecological health of Neotropical ecosystems. Our data paper, combined with other large-scale data sets, has great potential to clarify species distribution and related ecological processes within the Neotropics. There are no copyright restrictions and no restriction for using data from this data paper, as long as the data paper is cited as the source of the information used. We also request that users inform us of how they intend to use the data