Curvatura Da Superfície E Seu Efeito Na Variabilidade Espacial Dos Atributos Do Solo, Pinheiral - Rj/br

Understanding the spatial variability of soil chemical and physical attributes is important for improving management practices and soil conservation. In turn, the spatial variability of soil properties results from variation in morphological relief characteristics. Thus, the purpose of this study was to evaluate the influence of landform curvature on the spatial variability of soil chemical and physical attributes in the Mar de Morros region (Pinheiral-Rio de Janeiro State, Brazil). Two adjacent landforms were selected with convex and concave curvature and sampled in a regularly spaced grid of 10 meters. A total of 56 soil samples (0-5 cm depth) from the two landforms were collected and analyzed for physical and chemical attributes. The data were analyzed using descriptive statistics and geostatistics. All chemical attributes showed random patterns of spatial variability in both landforms. The concave landform had higher values of pH and potassium and lower values of aluminum than the convex landform. In contrast, silt content showed spatial dependence in both the concave and convex landforms. Bulk density and clay showed spatial dependence in the convex landform. Bulk density and silt content increased from the shoulder to the footslope of both landforms. The results show that, for this study area, landform curvature has more influence on the spatial dependence of soil physical attributes than of soil chemical properties. © 2016, Federal University of Lavras. All rights reserved.22443143

The neutrophil-to-lymphocyte ratio : A narrative review

Peer reviewedPublisher PD

VULNERABILIDADE FÍSICA DO SOLO NA SERRA DO TEPEQUÉM-RR: ANÁLISE DA ATIVIDADE EROSIVA LINEAR

A serra do Tepequém foi palco de intensa atividade garimpeira diamantífera que ao longo das últimas décadas tem contribuído com o processo erosivo revelado através de feições lineares. Além da influência antrópica, a vulnerabilidade física, química e mineralógica dos solos foi determinante na formação e evolução das voçorocas. O objetivo do estudo foi identificar e descrever os principais fatores de vulnerabilidade física, química e mineralógica do solo envolvidos no processo erosivo

A novel way for whey: cheese whey fermentation produces an effective and environmentally-safe alternative to chlorine

Cheese whey has been described as an environmental hazard due to its high organic content. Although it has been suggested that whey can be used as food disinfectant, it continues to pose an environmental problem because it still contains a high organic load. Here, we aimed to develop a low-cost, scalable fermentation protocol to produce a disinfectant from dairy waste that has very little organic content and high levels of lactic acid. Fermentation was achieved with industrial whey from ewe, goat, and cow’s milk, using a specific mesophilic-lactic acid bacteria starter mix over 120 h, which yielded the highest lactic acid production and the lowest lactose content. Antibacterial activity was observed against Listeria monocytogenes, Salmonella enterica, and Escherichia coli O157:H7, plus a total of thirteen other food pathogenic and spoilage strains, and antibacterial activities were determined to be highest after 120 h. We further validated this whey’s application as a disinfectant in shredded lettuce and compared its e cacy to that of chlorine, evaluating microbial quality, texture, color, and sensory perception, pH, and O2 and CO2 determinations. Results showed that not only was microbial quality better when using our whey solution (p < 0.05), but also the quality indicators for whey were statistically similar to those treated with chlorine. Hence, our work validates the use of an industrial waste whey as a low-cost, e cient, and environmentally safe disinfectant, with potential applications for minimally processed foodstu s as an alternative to chlorineinfo:eu-repo/semantics/publishedVersio

Species-specific responses of planktivorous fish to the introduction of a new piscivore: implications for prey fitness

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/75539/1/j.1365-2427.2007.01810.x.pd

SUPRIMENTO ARTERIAL PARA A BOLSA CLOACAL DE GALINHAS (Gallus gallus Linnaeus, 1758) DA LINHAGEM LABEL ROUGE

Foram estudados a origem, o número e a ordenação dos ramos arteriais destinados à bolsa cloacal em 30 exemplares de Gallus gallus, da linhagem Label Rouge, machos e fêmeas, com idade entre oito e dez semanas. Após injetado o sistema arterial desses animais com solução corada de Neoprene látex, seguido de fixação em solução aquosa de formol a 10 % e ulteriormente dissecados, verificou-se que: a) uma artéria bursocloacal direita esteve presente em 24 dos casos (80,00%), ao passo que a artéria bursocloacal esquerda foi confirmada em 29 dos exemplares (96,66%); b) a bolsa cloacal foi irrigada por um ou dois ramos cloacais, oriundos da artéria bursocloacal ipsilateral; c) a artéria cloacal direita ocorreu em 20 casos (66,66%) e a artéria cloacal esquerda em 9 casos (30,00%), ocasiões em que cediam apenas um ramo; d) o número de ramos arteriais, independentemente de sua origen, variou de dois a quatro, sendo a sua disposição de maneira própria para cada exemplar examinado. Arterial supply for the cloacal bursa of the Rouge Lineage fowl Gallus gallus (Linnaeus, 1758) Abstract A study has been carried out on the origin, number and disposition of the cloacal bursa arterial branches from tirthy male and female fowls (Gallus gallus), of the Label Rouge lineage, ageing between eight and ten weeks. After being injected the arterial system of those animals with a colored solution of Neoprene latex, they were soon after fixed in an 10% aqueous solution of formalin and dissected. The following observations were carried out: a) a right burso cloacal artery was present in 24 of the cases (80.00%), while the left bursocloacal artery was confirmed in 29 of the cases (96.66%); b) the cloacal bursa was irrigated by one or two cloacal branches of the ipsilateral bursocloacal artery; c) the right cloacal artery is present in 20 cases (66.66%) and the left cloacal artery in 9 cases (30.00%), with only one branch; d) the number of arterial branches, independent of origin

A Weyl-Dirac Cosmological Model with DM and DE

In the Weyl-Dirac (W-D) framework a spatially closed cosmological model is considered. It is assumed that the space-time of the universe has a chaotic Weylian microstructure but is described on a large scale by Riemannian geometry. Locally fields of the Weyl connection vector act as creators of massive bosons having spin 1. It is suggested that these bosons, called weylons, provide most of the dark matter in the universe. At the beginning the universe is a spherically symmetric geometric entity without matter. Primary matter is created by Dirac's gauge function very close to the beginning. In the early epoch, when the temperature of the universe achieves its maximum, chaotically oriented Weyl vector fields being localized in micro-cells create weylons. In the dust dominated period Dirac's gauge function is giving rise to dark energy, the latter causing the cosmic acceleration at present. This oscillatory universe has an initial radius identical to the Plank length = 1.616 exp (-33) cm, at present the cosmic scale factor is 3.21 exp (28) cm, while its maximum value is 8.54 exp (28) cm. All forms of matter are created by geometrically based functions of the W-D theory.Comment: 25 pages. Submitted to GR

Apolipoprotein J is a hepatokine regulating muscle glucose metabolism and insulin sensitivity

Crosstalk between liver and skeletal muscle is vital for glucose homeostasis. Hepatokines, liver-derived proteins that play an important role in regulating muscle metabolism, are important to this communication. Here we identify apolipoprotein J (ApoJ) as a novel hepatokine targeting muscle glucose metabolism and insulin sensitivity through a low-density lipoprotein receptor-related protein-2 (LRP2)-dependent mechanism, coupled with the insulin receptor (IR) signaling cascade. In muscle, LRP2 is necessary for insulin-dependent IR internalization, an initial trigger for insulin signaling, that is crucial in regulating downstream signaling and glucose uptake. Of physiologic significance, deletion of hepatic ApoJ or muscle LRP2 causes insulin resistance and glucose intolerance. In patients with polycystic ovary syndrome and insulin resistance, pioglitazone-induced improvement of insulin action is associated with an increase in muscle ApoJ and LRP2 expression. Thus, the ApoJ-LRP2 axis is a novel endocrine circuit that is central to the maintenance of normal glucose homeostasis and insulin sensitivity