A New Condition of Formation and Stablity of All Crystalline Systems in a Good Agreement with Experimental Data

In this paper we derived a new condition of formation and stability of all crystalline systems and we checked its validity and it is found to be in a good agreement with experimental data. This condition is derived directly from the quantum conditions on the free electron Fermi gas inside the crystal. The new condition relates both the volume of Fermi sphere VF and volume of Brillouin zone VB by the valence electron concentration VEC as ; for all crystalline systems (where n is the number of atoms per lattice point)

Crystalline Accommodation Law Explains The Crystalline Structure of Materials

All crystalline materials crystallize in one of seven crystalline systems which have different shapes and sizes. Why crystalline materials take particular forms of crystals and what make the atoms arrange themselves in these forms. Actually, until now there is no well defined law can account for the crystalline structure of materials. Here we show that the crystalline accommodation law, which is theoretically derived and experimentally verified, can explain the crystalline structure of all types of phases. This law is derived directly from the quantum conditions on the free electrons Fermi gas inside the crystal. The new law relates both the volume of Fermi sphere VF and volume of Brillouin zone VB to the valence electron concentration VEC as,    for all crystalline systems and phases, where n is the number of atoms per lattice point or primitive cell. Also because of this law, we introduce the occupied electronic quantum states notation (OEQS), which determine the number of occupied zones in the valence band

Theoretical modification of Hume Rothery condition of phase stability in a good agreement with experimental data

We presented in this paper a theoretical modification of Hume Rothery condition of phase stability in good agreement with experimental data. This modification is derived directly from the quantum conditions on the free electron Fermi gas inside the crystal. The new condition relates both the volume of Fermi sphere VF and volume of Brillouin zone VB by the valence electron concentration VEC as ;for tetragonal and hexagonal systems and asfor cubic systems

Moderate to severe maternal anaemia in pregnancy and its impact on perinatal outcome in tertiary care hospital

Background: Anaemia is the commonest medical disorder in pregnancy and has a varied prevalence, etiology and degree of severity in different populations. The purpose of this study was to evaluate the prevalence of maternal anaemia in pregnancy and its impact on perinatal outcome.Methods: This was a prospective observational study conducted in department of obstetrics and gynecology JLN Hospital Ajmer, Rajasthan, India from October 2015 to December 2016. Total 325 pregnant women were included in the study who fulfilled the inclusion criteria and found to have moderate to severe anaemia.Results: Prevalence of anaemia in pregnancy was 80% in present study. Perinatal mortality was 13.3% in moderate anaemia and in severe anaemia 42%. In present study maximum 56% of cases were in the age group of 20-25 years, and maximum number of cases were primigravida (33.84%). Out of 225 cases of moderate anaemia only 50 cases (22.22%) had antenatal check-up once or twice. Out of 225 cases of moderate anaemia, 66.66% cases were rural and 33.33% cases were of urban group. Fetal outcome in present study was in form of 49.23% premature birth with 33.12% perinatal mortality.Conclusions: Maternal anaemia in pregnancy is associated with illiteracy, low socioeconomic status, multiparity, inadequate antenatal care and rural geographic area.  Severe anaemia was associated with high perinatal mortality

Rapidly Solidified Melt-spun Bi-Sn Ribbons: Surface Composition Issues

Tin-bismuth alloy ribbons were produced using melt-spinning technique. The two main surfaces (in contact with the rotating wheel and exposed to the air) were characterized with Optical Microscopy and AFM, revealing that the surface exposed to the air is duller (due to a long-range heterogeneity) than the opposite surface. Also the XPS chemical composition revealed many differences between them both on the corrosion extension and on the total relative amounts of tin and bismuth. For instance, for the specific case of an alloy with a composition Bi-4 wt % Sn, the XPS atomic ratios Sn/Bi are 1.1 and 3.7 for the surface in contact with the rotating wheel and for the one exposed to air, respectively, showing, additionally, that a large segregation of tin at the surface exists (nominal ratio should be 0.073). This segregation was interpreted as the result of the electrochemical process yielding the corrosion products

Controlling the Density of Plasma Species in Ar/CF4 Radiofrequency Capacitively Coupled Plasma Discharges

In this manuscript, a fluid model is utilized to calculate the density of plasma species assuming geometrically symmetric Ar/CF4 Radiofrequency Capacitively Coupled Plasmas. The electrodes are driven by a sinusoidal waefront with an amplitude of 200 V and a frequency of 13.56 MHz. The gap between the electrodes is 5cm. The plasma species density is calculated as a function of the gas pressure, electron temperature, and the gas composition. In a good agreement with recent experimental results, $CF^+_3$ and F are dominant for all considered simulation parameters. The results explain the pathways to perform atomic layer etching and nanolayer deposition processes. In order to reveal the effect of electron heating on the discharge dynamics, The spatiotemporal electron energy equation is coupled to the fluid model. Tailoring the driven potential has been found to control the concentration of some plasma species. When the plasma is driven with the fundamental frequency, Ohmic and stochastic heating allows electrons to be heated symmetrically. Higher harmonics give rise to an electrical asymmetry and electron heating asymmetry between the powered and grounded sheaths. The electron temperature depends on the driven harmonics; it adjusts gain and loss rates and some plasma species densities

Rentabilidad en una finca del municipio de Ubaté

El mundo está cambiando a tasas nunca antes vistas, está creciendo rápidamente, lo cual tiene efectos positivos en la sociedad puesto que se generan avances importantes en medicina, tecnología y demás áreas del conocimiento. Uno de los sectores impactados por este cambio es el agrícola, los grandes productores de alimentos se han visto beneficiados a lo largo del tiempo por los cambios en la tecnología y la tecnificación del campo. Con esto han logrado ser más eficientes en los cultivos y en el levante de animales para el consumo humano, lo cual ha impactado directamente estos negocios volviéndose más rentables, más productivos y más competitivos.Problema de investigación. Pregunta de investigación. Hipótesis. Objetivos. Marco Teórico. El negocio de la leche en el mundo. El negocio en la finca Suagá. Metodología. Método de investigación. Etapas de investigación. Producción lechera. Sistema de explotación lechera. Razas de ganado lechero. Forrajes. Alimentación suplementaria. Variables a implementar. Evaluación financiera. Situación actual de la finca. Situación proyectada de la finca.Administrador de EmpresasPregrad

Compositions and methods of enhancing immune responses to Eimeria

Vaccines comprising TRAP polypeptides and Salmonella enteritidis vectors comprising TRAP polypeptides are provided. The vaccines may also include a CD154 polypeptide capable of binding to CD40. Also provided are methods of enhancing an immune response against Apicomplexan parasites and methods of reducing morbidity associated with infection with Apicomplexan parasites