Efecto de la asociación patilla (Citrullus lanatus) con maíz (Zea mays) sobre la población y el daño causado por tres insectos plaga y el rendimiento de estos cultivos en la Ciénaga Grande de Lorica, Córdoba.

Maíz-Zea may

3. SISTEMA INTELIGENTE DE CONTROL Y GESTIÓN EN PRÁCTICAS CONTABLES, JURÍDICAS Y TRIBUTARIAS BASADO EN TECNOLOGIAS MÓVILES Y WEB

En la actualidad existen 2,9 millones de personas naturales que declaran en Colombia un nivel de recaudo de 2.32 billones de pesos, la cual requiere un estudio para optimizar los procesos destinados a las áreas tributarias, contables y jurídicas. Por tal motivo se implementa una solución tecnológica que busca ofertar información de calidad, actualizada y certificada por medio de profesionales especializados en la materia. Para ello se presenta un diseño y desarrollo de una solución Tecnológica que contribuya al control y gestión de prácticas contables, agilizar procesos jurídicos y tributarios como el intercambio de información en una comunidad  de expertos. La implementación del proyecto se encuentra distribuida en 4 etapas, análisis, diseño, desarrollo y prueba que permiten validar la hipótesis de la investigación y la puesta en marcha del prototipo en el mercado

3. SISTEMA INTELIGENTE DE CONTROL Y GESTIÓN EN PRÁCTICAS CONTABLES, JURÍDICAS Y TRIBUTARIAS BASADO EN TECNOLOGIAS MÓVILES Y WEB

En la actualidad existen 2,9 millones de personas naturales que declaran en Colombia un nivel de recaudo de 2.32 billones de pesos, la cual requiere un estudio para optimizar los procesos destinados a las áreas tributarias, contables y jurídicas. Por tal motivo se implementa una solución tecnológica que busca ofertar información de calidad, actualizada y certificada por medio de profesionales especializados en la materia. Para ello se presenta un diseño y desarrollo de una solución Tecnológica que contribuya al control y gestión de prácticas contables, agilizar procesos jurídicos y tributarios como el intercambio de información en una comunidad  de expertos. La implementación del proyecto se encuentra distribuida en 4 etapas, análisis, diseño, desarrollo y prueba que permiten validar la hipótesis de la investigación y la puesta en marcha del prototipo en el mercado

Transverse magnetization in Cu/Ni/Cu epitaxial nanorings

The micromagnetic structure in epitaxial (001)-oriented Cu/Ni(14 nm)/Cu rings fabricated by electron beam and focused ion beam lithographies with external diameter of 3 µm and linewidths between 100 and 500 nm is presented. We found that a state with radial orientation of the magnetization prevails at remanence. The evaluation of the magnetoelastic, magnetocrystalline and magnetostatic energies shows that a value as low as 1.5 × 10-3 for the anisotropic relaxation of the in-plane strain components is enough to induce an effective radial easy magnetization direction

Causes of the regional variability in observed sea level, sea surface temperature and ocean colour over the period 1993-2011

We analyse the regional variability in observed sea surface height (SSH), sea surface temperature (SST) and ocean colour (OC) from the ESA Climate Change Initiative (CCI) datasets over the period 1993-2011. The analysis focuses on the signature of the ocean large-scale climate fluctuations driven by the atmospheric forcing and do not address the mesoscale variability. We use the ECCO version 4 ocean reanalysis to unravel the role of ocean transport and surface buoyancy fluxes in the observed SSH, SST and OC variability. We show that the SSH regional variability is dominated by the steric effect (except at high latitude) and is mainly shaped by ocean heat transport divergences with some contributions from the surface heat fluxes forcing that can be significant regionally (confirming earlier results). This is in contrast with the SST regional variability, which is the result of the compensation of surface heat fluxes by ocean heat transport in the mixed layer and arises from small departures around this background balance. Bringing together the results of SSH and SST analyses, we show that SSH and SST bear some common variability. This is because both SSH and SST variability show significant contributions from the surface heat fluxes forcing. It is evidenced by the high correlation between SST and buoyancy forced SSH almost everywhere in the ocean except at high latitude. OC, which is determined by phytoplankton biomass, is governed by the availability of light and nutrients that essentially depend on climate fluctuations. For this reason OC show significant correlation with SST and SSH. We show that the correlation with SST display the same pattern as the correlation with SSH with a negative correlation in the tropics and subtropics and a positive correlation at high latitude. We discuss the reasons for this pattern

Asturiux: detection system of computational anomalies

Everyday in network management, it is complex the process to correlate events in different dimensions: legal violation, intrusions, monitoring failures, violation to security policies or breach of standards; to which face professionals, teaching and students in this area in Colombia. This article presents the technological aspects for the design and development of a distributed system for the computational anomalies detection that was termed “Asturiux”, which arises as a product from a research project in the teleinformatics area. To addressing this problematic it use the network security administration, and anomalies detection. The system was fully developed with free software, in which were integrated different technologies for the communication, authentication, persistence, computational intelligence and remote alerts. The verification instruments and the realized tests, reflect a high level of system efficiency, and acceptation from the actors involved

Willow short-rotation production systems in Canada and Northern United States: A review

Willow short rotation coppice (SRC) systems are becoming an attractive practice because they are a sustainable system fulfilling multiple ecological objectives with significant environmental benefits. A sustainable supply of bioenergy feedstock can be produced by willow on marginal land using well-adapted or tolerant cultivars. Across Canada and northern U.S.A., there are millions of hectares of available degraded land that have the potential for willow SRC biomass production, with a C sequestration potential capable of offsetting appreciable amount of anthropogenic green-house gas emissions. A fundamental question concerning 1 sustainable SRC willow yields was whether long-term soil productivity is maintained within a multi-rotation SRC system, given the rapid growth rate and associated nutrient exports offsite when harvesting the willow biomass after repeated short rotations. Based on early results from the first willow SRC rotation, it was found willow systems are relatively low nutrient-demanding, with minimal nutrient output other than in harvested biomass. The overall aim of this manuscript is to summarize the literature and present findings and data from ongoing research trials across Canada and northern U.S.A. examining willow SRC system establishment and viability. The research areas of interest presented here are the crop production of willow SRC systems, above- and below-ground biomass dynamics and the C budget, comprehensive soil-willow system nutrient budget, and soil nutrient amendments (via fertilization) in willow SRC systems. Areas of existing research gaps were also identified for the Canadian context

Worldwide Dissemination of blaKPC Gene by Novel Mobilization Platforms in Pseudomonas aeruginosa: A Systematic Review

The dissemination of i bla i sub KPC sub harboring i Pseudomonas aeruginosa i KPC i Pa i is considered a serious public health problem This study provides an overview of the epidemiology of these isolates to try to elucidate novel mobilization platforms that could contribute to their worldwide spread A systematic review in PubMed and EMBASE was performed to find articles published up to June 2022 In addition a search algorithm using NCBI databases was developed to identify sequences that contain possible mobilization platforms After that the sequences were filtered and pair aligned to describe the i bla i sub KPC sub genetic environment We found 691 KPC i Pa i isolates belonging to 41 different sequence types and recovered from 14 countries Although the i bla i sub KPC sub gene is still mobilized by the transposon Tn i 4401 i the non Tn i 4401 i elements NTE sub KPC sub were the most frequent Our analysis allowed us to identify 25 different NTE sub KPC sub mainly belonging to the NTE sub KPC sub I and a new type proposed as IVa was also observed This is the first systematic review that consolidates information about the behavior of the i bla i sub KPC sub acquisition in i P aeruginosa i and the genetic platforms implied in its successful worldwide spread Our results show high NTE sub KPC sub prevalence in i P aeruginosa i and an accelerated dynamic of unrelated clones All information collected in this review was used to build an interactive online ma

Insight into the conformational space of n-benzyl-n-(furan-2-ylmethyl)acetamide by NMR spectroscopy and DFT calculations

In this study, the conformational behavior of N-benzyl-N-(furan-2-ylmethyl) acetamide in chloroform was addressed by using a combined experimental/theoretical strategy using NMR spectroscopy and quantum chemical calculations. The 1H and 13C one‑dimensional NMR spectra, as well as the two-dimensional HSQC-DEPT and HMBC-DEPT NMR spectra, evinced the presence of a hindered cis(E)-trans(Z) rotational equilibrium in solution. DFT calculations were performed at different theoretical levels using the polarizable continuum model (PCM) and predicted nine (four Z and five E structures) stable conformations. The interconversion dynamics among the different confirmations were established in terms of four different rotational equilibria in CDCl3. The chemical shifts in the 1H and 13C NMR spectra of the compound are similar to the values calculated for the two most abundant conformational equilibria at room temperature, one caused by two Z rotamers and the other by two E rotamers. The compound was also characterized for the first time by FTIR, Raman spectroscopy, and GC/MS spectrometry. Additionally, several acylation methodologies for synthesizing the title compound from N-benzyl-1-(furan-2-yl)methanamine were tested which resulted in high yields (> 90%) under very convenient conditions (10 min, at room temperature).Centro de Investigación y Desarrollo en Ciencias Aplicada