Coupled cluster calculations of the vertical excitation energies of tetracyanoethylene

Coupled cluster linear-response formalism has been used to compute the vertical spectrum of ethylene and tetracyanoethylene (TCNE). We show that for both molecules the ππ∗ excitation 1A1g→1B1u of the experimental spectrum is not vertical nor the 0-0 transition. For TCNE this excitation is the only experimentally observed band. We have computed vertical excitations of 5.2 eV in gas phase and 5.1 eV in acetonitrile and estimated a lower bound for the 0-0 transition in the gas phase of 4.3 [email protected] ; [email protected]

Efecto de la aplicación de tres niveles de fertilización orgánica en el cultivo de fréjol (Phaseolus vulgaris L.) en la zona de Balzar.

The objective of the research carried out was to evaluate the effect of the application of three levels of organic fertilization in the cultivation of beans (Phaseolus vulgaris L.) in the Balzar area. For this purpose, the trial was established at the EnGar farm located at km 14.3 of the Balzar – El Empalme road. Four treatments were evaluated: T1: 20 L/ha of biol; T2: 40 L/ha of biol; T3: 60 L/ha of biol and T4: Without fertilization, under a randomized complete block design with five repetitions. Data on plant height, number of nodules per plant, stem diameter, number of pods per plant, grains per pod, weight of 100 grains, yield per hectare were recorded and complemented with the respective economic analysis. The results obtained showed that T3: 60 L/ha of biol showed better results in the development of the crop, showing taller plants, with more nodules per plant, which in turn presented stems with a larger diameter, reflecting a greater benefit in these indicators due to said treatment. Yield indicators were significantly enhanced when applying T3: 60 L/ha of biol, which, due to a higher production of pods and grains per pod, which, in synergy with a higher weight of grains, reached a higher level of yield per hectare. (839.29 kg). In addition, the economic benefit was greater when the crop was fertilized with the application of T3: 60 L/ha of biol, with 54.37% being the only treatment that presented positive profitability.La investigación realizada tuvo como objetivo evaluar el efecto de la aplicación de tres niveles de fertilización orgánica en el cultivo de frijol (Phaseolus vulgaris L.) en la zona de Balzar. Para tal efecto se estableció el ensayo en la finca EnGar ubicada en el km 14.3 de la vía Balzar – El Empalme. Se evaluaron cuatro tratamientos: T1: 20 L/ha de biol; T2: 40 L/ha de biol; T3: 60 L/ha de biol y T4: Sin fertilización, bajo un diseño de bloques completos al azar en cinco repeticiones. Se registraron datos de altura de planta, número de nódulo por planta, diámetro del tallo, número de vainas por planta, granos por vaina, peso de 100 granos, rendimiento por hectárea y se complementó con el respectivo análisis económico. Los resultados obtenidos reflejaron que T3: 60 L/ha de biol mostró mejores resultados en el desarrollo del cultivo, mostrando plantas de mayor altura, con más nódulos por planta, que a su vez presentó tallos de mayor diámetro, reflejando un mayor beneficio en estos indicadores a razón de dicho tratamiento. Los indicadores de rendimiento fueron potenciados significativamente al aplicarse T3: 60 L/ha de biol, que, a razón de mayor producción de vainas y granos por vaina, que, en sinergia con un mayor peso de granos, alcanzó mayor nivel de rendimiento por hectárea (839.29 kg). Además, el beneficio económico fue mayor cuando se fertilizó el cultivo con la aplicación de T3: 60 L/ha de biol, con un 54.37% siendo el único tratamiento que presentó rentabilidad positiva

Efecto de extractos de plantas sobre el crecimiento, la esporulación y la producción de toxinas de clostridium perfringens tipo A

Tesis (Maestría en Ciencias con Especialidad en Microbiología) UANLUANLhttp://www.uanl.mx

Desarrollo y optimización del proceso de extracción de proteínas y electroforesis bidimensional en fruta de hueso

Comunicaciones a congreso

Assessment for the mean value total dressing method: Comparison with coupled cluster including triples methods for BF, NO+, CN+, C2, BeO, NH3, CH2, H2O, BH, HF, SiH2, Li2, LiNa, LiBe+, NeH+, and O3

Limited previous experience with the mean value total dressing (MVTD) method had shown that MVTD energies for closed shell systems are generally better than CCSD(T) ones compared to FCI. The method, previously published as total dressing 2′(td-2′), is based on the single reference intermediate Hamiltonian theory. It is not a CC method but deals in a great part with the same physical effects that CC methods that incorporate amplitudes of triples such as CCSDT or its CCSDT-1n approaches. A number of test calculations comparing to diverse CC methods, as well as FCI and experiment when available, have been performed. The tests concern equilibrium energies in NH3 and CH2, equilibrium energies and distances in some diatomics (BF, NO+, CN+, C2, BeO), different bond breaking situations (H2O, BH, HF, SiH2) and spectroscopic properties of different bonding conditions (Li2, LiNa, LiBe+, NeH+, and O3). The results are in general closer to the full CCSDT ones in the equilibrium regions and close to CCSDT-1 along most dissociation curves. A few exceptions to this rule are analyzed with the help of an approach to MVTD that does not take into account the effects of linked quadriexcitations. Such analysis suggests the interest of improving the treatment of effects of linked triples in the MVTD model. The separate contributions of linked and unlinked triples and quadruples are also analyzed for some of the above diatomics representing different behaviors of bond breaking. The interest of such analysis is illustrated in the NeH+ molecule. The MVTD results show, in general, a high quality, provided that the nature of the correlation problem does not become largely multiconfigurational, as occurs in multiple bond dissociation or in the asymmetric stretching of [email protected] ; [email protected] ; [email protected]

Changes in electromyographic activity of latent trigger points after a dry needling intervention: a randomised controlled trial.

Objective To analyse the effects of dry needling (DN) in upper trapezius latent trigger points (LTrPs) on pressure pain threshold (PPT) and surface electromyography (sEMG). Design Randomized, double-blind, placebo controlled clinical trial. Settings Sports Rehabilitation Laboratory, University of Castilla-La Mancha. Participants Forty-six participants (18–35 years old) with LTrP in the upper trapezius were divided into two groups: DN-group and Sham-DN-group. Interventions In the DN-group, the needle was inserted 10-times through the skin, and it was manipulated up and down using a "fast in and out" technique. In the Sham-DN-group, non-penetrating needles were used. Main outcome measures PPT, sEMG at rest, and sEMG in isometric contraction of the LTrP of the upper trapezius muscle were evaluated at baseline, 30 min after treatment, and after 24 h, and 72 h of follow-up. Results The mean change in sEMG at rest between baseline and 30 min was − 0.38 (0.38) %refRMS for the DN group and − 0.05 (0.31) %refRMS for the Sham-DN group (mean difference −0.34, 95% confidence interval (CI) of the difference: − 0.54 to − 0.13), and between baseline and 24 h was − 0.35 (0.35) %refRMS for the DN group and − 0.06 (0.58) %refRMS for the Sham-DN group (mean difference −0.29, 95% CI: −0.57 to −0.01). In addition, the DN-group showed higher values of PPT than the Sham-DN group at 72 h (5.22 (1.23) to 4.65 (1.03) kg/cm2; p < 0.05). Conclusions A single session of DN intervention was effective in reducing the electromyographic activity, muscle fatigue and pain of the upper trapezius muscle in LTrP.pre-print542 K

Información y ayuda para la incorporación de la mujer en oficios masculinos. Proyecto "INAyMUJER"

En la Formación Profesional actual se mantiene una fuerte discriminación social que provoca una desigualdad ocupacional en función del sexo1. Esta situación es debida fundamentalmente al rol de género que condiciona los estereotipos históricamente transmitidos a través de nuestra cultura2. Es por tanto necesario fomentar acciones y actuaciones formativas para los docentes en los niveles educativo de Primaria, Secundaria Obligatoria y Postobligatoria3, rompiendo el panorama actual, destruyendo barreras, y orientando4 en igualdad de condiciones en nuestro sistema educativo que nos permitan mejorar las oportunidades de elección de la mujer en las especialidades de Formación Profesional masculinas, eliminando la contaminación social existente. Al mismo tiempo es importante conocer las cualificaciones profesionales5 demandadas por las empresas donde la empleabilidad de la mujer es baja o inexistente6 para proporcionar a la mujer una formación en perfiles profesionales de sectores empresariales poco demandados por el colectivo de mujeres, y con una cualificación profesional media-alta requerida por la empresa. Y por último la situación actual de la mujer en la Formación Profesional de Andalucía en especialidades masculinas. El objetivo de éste estudio es una vez analizadas la cuestiones expuestas, desarrollar acciones formativas interviniendo el docente, la empresa y la universidad

Linguistic skills of children from a low socioeconomic level at the beginning of elementary education

The purpose of this study was to assess the linguistic skills of children from a low socioeconomic background who were beginning their elementary education. A total of 262 first-grade students with an average age of 5.7 years old and who were enrolled in 8 groups of public schools from Mexico State, participated in this project. The instrument used was the Precurrent Skills for Reading Assessment (PSRA) by Vega (1991), and was administered individually to each student at the beginning of the 2004-2005 school year. The statistical analysis using SPSS showed a mean score of 77 (SD=14), which corresponds to 57% of the total PSRA score. These results may indicate that first grade students have an unsatisfactory level of linguistic behaviour. Slight differences in the students’ performances were observed. A slightly better performance was shown by those first grade students who were 6 years old at the beginning of the school year and who had previously received pre-school education. The implications of the poor linguistic level shown by the participants are discussed, and some alternatives based on the behavioural research, are proposed.El objetivo de este estudio fue evaluar las habilidades linguísticas con que ingresan a la educación básica primaria alumnos de estrato socioeconómico bajo. Participaron 262 alumnos de primer grado, inscritos en ocho grupos de escuelas públicas del Estado de México, con una media de 5.7 años de edad. Se aplicó individualmente a cada alumno el Instrumento para Evaluar Habilidades precurrentes para la lectura (EPLE), de Vega (1991), al inicio del ciclo escolar 2004-2005. El análisis estadístico con el programa SPSS arrojó como resultado un puntaje promedio de 77 (DS=14). Que corresponde al 57% de la clasicficación total del eple, lo que puede indicar que los alumnos ingresaron al primer grado de primaria con un nivel insatisfactorio de conductas linguísticas. Se observan ligeras diferencias en las ejecuciones de los alumnos, a favor de quienes ingresaron con seis años de edad y con mayor número de años cursados en preescolar. Se discuten las implicaciones del bajo nivel linguístico mostrado por los participantes y se proponen alternativas basadas en la investigación psiclógica conductual