Salinidade dos solos: métodos de pesquisa.

O estudo aborda os seguintes aspectos: diagnostico e caracterizacao dos solos, melhoramento e manejo, resposta das culturas e selecao de culturas tolerantes e utilizacao de agua salina.bitstream/item/142601/1/ID-2820.pd

Solos salinos: diagnóstico e recuperação.

Geologia e geomorfologia; Origem e formação de solos salinos e sódicos; Tipos de sais e solubilidade; Distribuição dos sais; Efeito dos sais e resposta das plantas.bitstream/item/142798/1/ID-49901.pdfTrabalho apresentado no II Curso sobre Métodos de Pesquisa ao Nível de Produtor

Datasets for transcriptomics, q-proteomics and phenotype microarrays of polyphosphate metabolism mutants from Escherichia coli

Indexación: Scopus.Author acknowledges Fondecyt Grants 1120209, 1121170 and Anillo ACT-1107Here, we provide the dataset associated with our research article on the polyphosphate metabolism entitled, “Multi-level evaluation of Escherichia coli polyphosphate related mutants using global transcriptomic, proteomic and phenomic analyses”. By integrating different omics levels (transcriptome, proteome and phenome), we were able to study Escherichia coli polyphosphate mutant strains (Δppk1, Δppx, and Δppk1-ppx). We have compiled here all datasets from DNA microarrys, q-proteomic (Isotope-Coded Protein Labeling, ICPL) and phenomic (Phenotype microarray) raw data we have obtained in all polyP metabolism mutants.http://www.sciencedirect.com/science/article/pii/S2352340917300860?via%3Dihu

Calidad de vida en pacientes con cáncer de recto

ResumenLa calidad de vida (QOL) es un concepto que ha cobrado cada vez mayor importancia. Cuando hablamos de salud, resulta necesario incluir este tema, debido a que los avances en medicina han permitido alargar la vida considerablemente, lo cual ha repercutido en las expectativas de los pacientes en cuanto a su nivel de actividad, autonomía y estado de salud en general. Más aún, toma especial relevancia el hablar de QOL cuando nos referimos a cáncer de recto, donde los pacientes pueden ser sometidos a terapias altamente invasivas, con cirugías mayores, además de terapias adyuvantes como la quimio y la radioterapia. Posterior a la resección quirúrgica del tumor es frecuente que se requiera confeccionar una ostomía, la cual puede ser permanente o transitoria. Independiente de la temporalidad, podemos distinguir un cambio en la QOL de los pacientes como consecuencia de este tipo de intervención, el cual será revisado en este artículo.SummaryQuality of life (QOL) is a concept that has increased importance in the last years. When we analyzed the concept of health, it is necessary to cover this topic because there are multiples advances in medicine that allowed a longer life expectancy. This has impacted on patient’s expectations regarding the activity level, independence and overall health status. Moreover, it is especially relevant to analyze QOL when the patients have a rectal cancer. In that case, the patients could be subjected to highly invasive therapies, with major surgery and other adjuvant therapies like chemo or radiotherapy. To treat this type of cancer is common to require an ostomy, which may be permanent or temporary. Regardless of the timing, we can distinguish a change in patient’s QOL as a consequence of this type of intervention, which will be reviewed in this article

Microwave sintering of dense and lattice 3Y-TZP samples shaped by digital light processing

Nowadays it is possible to produce ceramic parts with solid and complex shapes with rapid and efficient shaping and sintering techniques. In this paper, 3mol% yttria stabilized zirconia (3Y-TZP) dense and lattice parts were shaped by Digital light processing method (DLP) and densified by conventional (CV) and microwave (MW) sintering. 3Y-TZP samples were MW sintered up to 1550 °C with different heating rates (10, 30, and 50 °C/min) for the dense samples and 30 °C/min for the lattice samples. Controlled thermal cycles with a homogenous heating and no thermal runaway was reached. CV sintering was carried out at 10 °C/min up to 1550 °C. No inter-layer delamination was detected after sintering by the two methods. Both dense and lattice MW-sintered samples reached high final densities (equivalent to obtained values with CV-sintered samples, i.e., ≥98% T.D.), but exhibited a lower average grain size than CV-sintered materials. The different architectures between dense and lattice samples resulted in a different specific absorbed power: the power absorbed by the dense sample is lower than that absorbed by the lattice one meaning that this sample architecture heats up easily

Global gene expression analysis provides insight into local adaptation to geothermal streams in tadpoles of the Andean toad Rhinella spinulosa

Indexación: Web of Science; Scopus.The anuran Rhinella spinulosa is distributed along the Andes Range at altitudes that undergo wide daily and seasonal variation in temperature. One of the populations inhabits geothermal streams, a stable environment that influences life history traits such as the timing of metamorphosis. To investigate whether this population has undergone local adaptation to this unique habitat, we carried out transcriptome analyses in animals from two localities in two developmental stages (prometamorphic and metamorphic) and exposed them to two temperatures (20 and 25 degrees C). RNA-Seq, de novo assembly and annotation defined a transcriptome revealing 194,469 high quality SNPs, with 1,507 genes under positive selection. Comparisons among the experimental conditions yielded 1,593 differentially expressed genes. A bioinformatics search for candidates revealed a total of 70 genes that are highly likely to be implicated in the adaptive response of the population living in a stable environment, compared to those living in an environment with variable temperatures. Most importantly, the population inhabiting the geothermal environment showed decreased transcriptional plasticity and reduced genetic variation compared to its counterpart from the non-stable environment. This analysis will help to advance the understanding of the molecular mechanisms that account for the local adaptation to geothermal streams in anurans.https://www.nature.com/articles/s41598-017-01982-

Proposta de pesquisa em: drenagem e recuperação de solos salinos e sódicos no Nordeste do Brasil.

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Características operacionais de um sistema de irrigação por Pivot Central.

Descrição do sistema de irrigação; Características operacionais do sistema da irrigação.bitstream/item/181083/1/FL-07347.pd

Hydrogen production during the irradiation of gaseous organic compounds: advantage of an extracted beam

ACE, Accélérateur, NIMBInternational audienceThis paper presents a fundamental study of the radiolysis of gaseous organic molecules induced by proton beam. For that purpose, a specific extracted beam line associated with a gas irradiation cell was set up on the 4 MV facility of the Institut de Physique Nucléaire of Lyon. The first experiments have been performed with gaseous alkanes and alkenes. The gaseous species formed during irradiation are analysed by an on-line gas chromatography instrument equipped with two detectors. In order to test our experimental faiclity, we have studied the influence of irradiation parameters (duration, beam intensity, pressure) on the production of hydrogen. In the case of propane, the radiolytic yield value of hydrogen G(H$_2$) is equal to 3.7 for total does in the range of 0.4 to 2.3 MGy at atmospheric pressure