Desenvolupament d'una aplicaci�� amb Microsoft .NET : Gesti�� integral d'un restaurant

Sistema inform��tic de gesti�� d'un restaurant desenvolupat amb .NET que consisteix en tres m��duls: administraci��, m��bil i web.

Effects of experimental freezing on soil nitrogen dynamics in soils from a net nitrification gradient in a nitrogen-saturated hardwood forest ecosystem

This study examined effects of soil freezing on N dynamics in soil along an N processing gradient within a mixed hardwood dominated watershed at Fernow Experimental Forest, West Virginia. Sites were designated as LN (low rates of N processing), ML (moderately low), MH (moderately high), and HN (high). Soils underwent three 7-day freezing treatments (0, ���20, or ���80 ��C) in the laboratory. Responses varied between temperature treatments and along the gradient. Initial effects differed among freezing treatments for net N mineralization, but not nitrification, in soils across the gradient, generally maintained at LN < ML ��� MH < HN for all treatments. Net N mineralization potential was higher following freezing at ���20 and ���80 ��C than control; all were higher than at 0 ��C. Net nitrification potential exhibited similar patterns. LN was an exception, with net nitrification low regardless of treatment. Freezing response of N mineralization differed greatly from that of nitrification, suggesting that soil freezing may decouple two processes of the soil N cycle that are otherwise tightly linked at our site. Results also suggest that soil freezing at temperatures commonly experienced at this site can further increase net nitrification in soils already exhibiting high nitrification from N saturation.

��Una comparaci��n entre Java y .NET?

En este art��culo se presentan una serie de reflexiones frente a las comparaciones que pueden hacerse entre dos plataformas de software: Java y .NET. Para ello se trata de hacer un breve recuento hist��rico de ambos casos, y despu��s se presentan algunas de las diferencias que la autora ha encontrado entre ellas, mirando aspectos que tienen relaci��n directa con la programaci��n orientada a objetos, o con otros aspectos del lenguaje. Por ��ltimo se presenta una breve aclaraci��n, desde el punto de vista de la autora, frente al tema de portabilidad que ambos reclaman como la diferencia m��s relevante entre ellos.

Historical carbon emissions and uptake from the agricultural frontier of the Brazilian Amazon

Tropical ecosystems play a large and complex role in the global carbon cycle. Clearing of natural ecosystems for agriculture leads to large pulses of CO(2) to the atmosphere from terrestrial biomass. Concurrently, the remaining intact ecosystems, especially tropical forests, may be sequestering a large amount of carbon from the atmosphere in response to global environmental changes including climate changes and an increase in atmospheric CO(2). Here we use an approach that integrates census-based historical land use reconstructions, remote-sensing-based contemporary land use change analyses, and simulation modeling of terrestrial biogeochemistry to estimate the net carbon balance over the period 1901-2006 for the state of Mato Grosso, Brazil, which is one of the most rapidly changing agricultural frontiers in the world. By the end of this period, we estimate that of the state`s 925 225 km(2), 221 092 km(2) have been converted to pastures and 89 533 km(2) have been converted to croplands, with forest-to-pasture conversions being the dominant land use trajectory but with recent transitions to croplands increasing rapidly in the last decade. These conversions have led to a cumulative release of 4.8 Pg C to the atmosphere, with similar to 80% from forest clearing and 20% from the clearing of cerrado. Over the same period, we estimate that the residual undisturbed ecosystems accumulated 0.3 Pg C in response to CO2 fertilization. Therefore, the net emissions of carbon from Mato Grosso over this period were 4.5 Pg C. Net carbon emissions from Mato Grosso since 2000 averaged 146 Tg C/yr, on the order of Brazil`s fossil fuel emissions during this period. These emissions were associated with the expansion of croplands to grow soybeans. While alternative management regimes in croplands, including tillage, fertilization, and cropping patterns promote carbon storage in ecosystems, they remain a small portion of the net carbon balance for the region. This detailed accounting of a region`s carbon balance is the type of foundation analysis needed by the new United Nations Collaborative Programmme for Reducing Emissions from Deforestation and Forest Degradation (REDD).

Speed and rhythm in organizations: How do different generations cope with speed and rhythm at work?

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA ��� School of Business and Economics

Restaural, sistema de gesti�� de comandes per restaurants

El projecte consisteix en un sistema informatitzat per restaurantscentralitzat en un servidor que permet recollir comandes als clients a trav��s dePDA���s i de pantalles t��ctils situades a la barra per enviar-les als corresponentsllocs d��� elaboraci��: -Terminal de la cuina on s���elaboraran tots els menjars.-Terminal de la bodega on es serviran els vins i caves.-Terminal barra on es serviran els licors, refrescos (entre d���altresproductes totalment configurables).-Terminal de postres on es reben les l��nies de comanda relacionadesamb els postres.L���objectiu acad��mic del projecte ser�� adquirir coneixement a nivell dedisseny i gesti�� de dades, aix�� com la comunicaci�� de diversos dispositius entemps real. S���utilitzar�� la tecnologia .net, concretament el llenguatge deprogramaci�� visual c# .net. i com a gestor de bases de dades el mysql 5.0.19.A m��s, es treballa amb la metodologia UML, utilitzant tamb�� diversos patrons. Per fer del sistema un sistema centralitzat en un servidor s���utilitzar�� lacomunicaci�� per terminal service de windows el qual ens brinda la possibilitat d���establir diverses sessions d���usuaris concurrents. Cada sessi�� estar�� destinadaa un cambrer, per tant, hi haur�� una sessi�� per PDA

ReeShare - Compare Beyond : Programaci�� d'aplicacions m��bils usant HTML 5

Projecte Final de Carrera usant HTML5 que desenvolupa una plataforma on-line d'intercanvi de preus per a smartphones emprant un front-end HTML i un back-end Microsoft .NET.

Restaural, sistema de gesti�� de comandes per restaurants

El projecte consisteix en un sistema informatitzat per restaurants centralitzat en un servidor que permet recollir comandes als clients a trav��s de PDA���s i de pantalles t��ctils situades a la barra per enviar-les als corresponents llocs d��� elaboraci��: -Terminal de la cuina on s���elaboraran tots els menjars. -Terminal de la bodega on es serviran els vins i caves. -Terminal barra on es serviran els licors, refrescos (entre d���altres productes totalment configurables). -Terminal de postres on es reben les l��nies de comanda relacionades amb els postres. L���objectiu acad��mic del projecte ser�� adquirir coneixement a nivell de disseny i gesti�� de dades, aix�� com la comunicaci�� de diversos dispositius en temps real. S���utilitzar�� la tecnologia .net, concretament el llenguatge de programaci�� visual c# .net. i com a gestor de bases de dades el mysql 5.0.19. A m��s, es treballa amb la metodologia UML, utilitzant tamb�� diversos patrons. Per fer del sistema un sistema centralitzat en un servidor s���utilitzar�� la comunicaci�� per terminal service de windows el qual ens brinda la possibilitat d���establir diverses sessions d���usuaris concurrents. Cada sessi�� estar�� destinada a un cambrer, per tant, hi haur�� una sessi�� per PDA

Search for long-lived particles in events with photons and missing energy in proton-proton collisions at root s=7 TeV

Conselho Nacional de Desenvolvimento Cient��fico e Tecnol��gico (CNPq)

Unprecedented Trapping of Difluorooctamolybdate Anions within an ��-Polonium Type Coordination Network

New fluorinated hybrid solids [Mo2F2O5(tr2pr)] (1), [Co3(tr2pr)2(MoO4)2F2]��7H2O (2), and [Co3(H2O)2(tr2pr)3(Mo8O26F2)]��3H2O (3) (tr2pr = 1,3-bis(1,2,4-triazol-4-yl)propane) were prepared from the reaction systems consisting of Co(OAc)2/CoF2 and MoO3/(NH4)6Mo7O24, as CoII and MoVI sources, in water (2) or in aqueous HF (1, 3) employing mild hydrothermal conditions. The tr2pr ligand serves as a conformationally flexible tetradentate donor. In complex 1, the octahedrally coordinated Mo atoms are linked in the discrete corner-sharing {Mo2(��2-O)F2O4N4} unit in which a pair of tr-heterocycles (tr = 1,2,4-triazole) is arranged in cis-positions opposite to ���molybdenyl��� oxygen atoms. The anti���anti conformation type of tr2pr facilitates the tight zigzag chain packing motif. The crystal structure of the mixed-anion complex salt 2 consists of trinuclear [Co3(��3-MoO4)2(��2-F)2] units self-assembling in CoII-undulating chains (Co������Co 3.0709(15) and 3.3596(7) ��), which are cross-linked by tr2pr in layers. In 3, containing condensed oxyfluoromolybdate species, linear centrosymmetric [Co3(��2-tr)6]6+ SBUs are organized at distances of 10.72���12.45 �� in an ��-Po-like network using bitopic tr-linkers. The octahedral {N6} and {N3O3} environments of the central and peripheral cobalt atoms, respectively, are filled by triazole N atoms, water molecules, and coordinating [Mo8O26F2]6��� anions. Acting as a tetradentate O-donor, each difluorooctamolybdate anion anchors four [Co3(��2-tr)6]6+ units through their peripheral Co-sites, which consequently leads to a novel type of a two-nodal 4,10-c net with the Schla��fli symbol {32.43.5}{34.420.516.65}. The 2D and 3D coordination networks of 2 and 3, respectively, are characterized by significant overall antiferromagnetic exchange interactions (J/k) between the CoII spin centers on the order of ���8 and ���4 K. The [Mo8O26F2]6��� anion is investigated in detail by quantum chemical calculations.

Physical oceanography during Nathaniel B. Palmer cruises NBP06-01 and NBP06-08 to the Ross Sea

We calculate net community production (NCP) during summer 2005-2006 and spring 2006 in the Ross Sea using multiple approaches to determine the magnitude and consistency of rates. Water column carbon and nutrient inventories and surface ocean O2/Ar data are compared to satellite-derived primary productivity (PP) estimates and 14C uptake experiments. In spring, NCP was related to stratification proximal to upper ocean fronts. In summer, the most intense C drawdown was in shallow mixed layers affected by ice melt; depth-integrated C drawdown, however, increased with mixing depth. Delta O2/Ar-based methods, relying on gas exchange reconstructions, underestimate NCP due to seasonal variations in surface Delta O2/Ar and NCP rates. Mixed layer Delta O2/Ar requires approximately 60 days to reach steady state, starting from early spring. Additionally, cold temperatures prolong the sensitivity of gas exchange reconstructions to past NCP variability. Complex vertical structure, in addition to the seasonal cycle, affects interpretations of surface-based observations, including those made from satellites. During both spring and summer, substantial fractions of NCP were below the mixed layer. Satellite-derived estimates tended to overestimate PP relative to 14C-based estimates, most severely in locations of stronger upper water column stratification. Biases notwithstanding, NCP-PP comparisons indicated that community respiration was of similar magnitude to NCP. We observed that a substantial portion of NCP remained as suspended particulate matter in the upper water column, demonstrating a lag between production and export. Resolving the dynamic physical processes that structure variance in NCP and its fate will enhance the understanding of the carbon cycling in highly productive Antarctic environments.

Estimating the net contribution of interleukin-28B variation to spontaneous hepatitis C virus clearance.

The identification of associations between interleukin-28B (IL-28B) variants and the spontaneous clearance of hepatitis C virus (HCV) raises the issues of causality and the net contribution of host genetics to the trait. To estimate more precisely the net effect of IL-28B genetic variation on HCV clearance, we optimized genotyping and compared the host contributions in multiple- and single-source cohorts to control for viral and demographic effects. The analysis included individuals with chronic or spontaneously cleared HCV infections from a multiple-source cohort (n = 389) and a single-source cohort (n = 71). We performed detailed genotyping in the coding region of IL-28B and searched for copy number variations to identify the genetic variant or haplotype carrying the strongest association with viral clearance. This analysis was used to compare the effects of IL-28B variation in the two cohorts. Haplotypes characterized by carriage of the major alleles at IL-28B single-nucleotide polymorphisms (SNPs) were highly overrepresented in individuals with spontaneous clearance versus those with chronic HCV infections (66.1% versus 38.6%, P = 6 �� 10(-9) ). The odds ratios for clearance were 2.1 [95% confidence interval (CI) = 1.6-3.0] and 3.9 (95% CI = 1.5-10.2) in the multiple- and single-source cohorts, respectively. Protective haplotypes were in perfect linkage (r(2) = 1.0) with a nonsynonymous coding variant (rs8103142). Copy number variants were not detected. We identified IL-28B haplotypes highly predictive of spontaneous HCV clearance. The high linkage disequilibrium between IL-28B SNPs indicates that association studies need to be complemented by functional experiments to identify single causal variants. The point estimate for the genetic effect was higher in the single-source cohort, which was used to effectively control for viral diversity, sex, and coinfections and, therefore, offered a precise estimate of the net host genetic contribution.

Aplicaci��n web con tecnolog��as .NET para gestionar un C.E.P.

Memoria del Trabajo Final de Carrera consistente en el an��lisis, dise��o e implementaci��n de una aplicaci��n Web empleando tecnolog��as .NET para gestionar un Centro de Estudios Primario.

Population dynamics and net primary production of the aquatic macrophite Nymphaea rudgeana C. F. Mey in a lotic environment of the Itanha��m River basin (SP, Brazil)

Neste trabalho, foi estudada a din��mica populacional e estimada a produ����o prim��ria l��quida da macr��fita aqu��tica Nymphaea rudgeana em um bra��o do rio Itanha��m (Estado de S��o Paulo, Brasil). Esta esp��cie apresenta uma ampla varia����o anual de biomassa, em fun����o da esta����o do ano, no local estudado. A partir do m��s de novembro (13,1 g PS/m��), pode ser observado um aumento gradual da biomassa, atingindo o m��ximo em fevereiro (163,1 g PS/m��). Posteriormente, a biomassa diminui, mantendo-se em n��veis baixos at�� um novo per��odo de crescimento. A diminui����o de biomassa est�� associada ao desenvolvimento de macr��fitas flutuantes (Pistia stratiotes e Salvinia molesta) e, subseq��entemente, ��s condi����es ambientais desfavor��veis (valores de salinidade elevados) ao seu desenvolvimento. A produ����o prim��ria l��quida de N. rudgeana foi obtida a partir dos dados de biomassa e seu valor �� estimado entre 3,02 e 3,82 t/ha/ano.