Coupled Interannual Variability of Wind and Sea Surface Temperature in the Caribbean Sea and the Gulf of Mexico

This work describes dominant patterns of coupled interannual variability of the 10-m wind and sea surface temperature in the Caribbean Sea and the Gulf of Mexico (CS&GM) during the period 1982-2016. Using a canonical correlation analysis (CCA) between the monthly mean anomalies of these fields, four coupled variability modes are identified: the dipole (March-April), transition (May-June), interocean (July-October), and meridional-wind (November-February) modes. Results show that El Nino-Southern Oscillation (ENSO) influences almost all the CS&GM coupled modes, except the transition mode, and that the North Atlantic Oscillation (NAO) in February has a strong negative correlation with the dipole and transition modes. The antisymmetric relationships found between the dipole mode and the NAO and ENSO indices confirm previous evidence about the competing remote forcings of both teleconnection patterns on the tropical North Atlantic variability. Precipitation in the CS and adjacent oceanic and land areas is sensitive to the wind-SST coupled variability modes from June to October. These modes seem to be strongly related to the interannual variability of the midsummer drought and the meridional migration of the intertropical convergence zone in the eastern Pacific. These findings may eventually lead to improving seasonal predictability in the CS&GM and surrounding land areas.Programa Nacional de Posgrados de Calidad of the Consejo Nacional de Ciencia y Tecnologia of Mexico; CONACYT-SENER-Hidrocarburos Project [201441]6 month embargo; published online: 20 June 2019This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]

Tuberculosis en ovino: epidemiología, patología y evaluación de técnicas diagnósticas

5 páginas, 2 tablas, 1 figura.--Trabajo presentado al: XL Congreso Nacional y el XVI Congreso Internacional de la Sociedad Española de Ovinotecnia y Caprinotecnia. (Castellón de la Plana, España, 16-18 septiembre 2015).Peer Reviewe

Radionuclide Determination In Surface Water Samples By Inductively Coupled Plasma With Sector Field Mass Spectrometry (ICP-SFMS)

The determination of naturally occurring radionuclides in the environment by inductively coupled plasma mass spectrometry of high resolution (ICP-SFMS) has gained recognition over the last fifteen years, relative to the radiometric techniques, as the result of improvement in instrumental performance, sample introduction equipment and sample preparation. With the increase in instrumental sensitivity, it is now possible to measure ultratrace levels of many radioisotopes.The aim of this work was to determined the natural radionuclides (232Th, 234U, 235U and 238U) in surface water using Inductively Coupled Plasma-Sector Field Mass Spectrometry (ICP-SFMS). The samples were sampling from Lerma river, State of Mexico at february to april 2015. The process of treatment of sample consisted in perform an acid digestion according to the 3015A USEPA method followed of the direct measurement in ICP-SFMS. Results obtained were: a) identify the presence of 232Th, 234U, 235U and 238U isotopes in water, b) isotopic ratios were for 234U/238U=1.133 ± 0.016. ICP-SFMS has gained popularity in the field of radiochemistry, particularly as a method of detection for long lived-actinides

(1′S,2R,3R)-(−)-2-Hydr­oxy-3-morpholino-3-phenyl-N-(1′-phenyl­ethyl)propion­amide

In the title compound, C21H26N2O3, the morpholine ring has a chair conformation and the dihedral angle between the two phenyl rings is 59.0 (3)°. The crystal packing is stabilized by inter­molecular O—H⋯O hydrogen bonds, generating a ribbon structure along the a axis. An intra­molecular N—H⋯O contact is also present

Estudio de procesos / Programa de mejora electromecánica en JV Muebles de Ocotlán Jalisco

Este documento recopila el análisis obtenido durante las visitas realizadas a las instalaciones de la empresa JV DE OCCIDENTE S.A. DE C.V., dedicada a la fabricación de muebles. Utilizando lo aprendido de la carrera de Ingeniería Industrial, así como de Ingeniería Mecánica se presenta este proyecto en ambos enfoques para realizar dos diferentes bloques uno de ellos (el de Ingeniería Industrial) contiene: levantamiento de layout, documentación de maquinaria y recorridos, estudio de tiempos. En cuanto Ingeniería Mecánica se enfocó en un programa de mejora electromecánica que abarca los siguientes análisis técnicos: • Energía. • Instalaciones Eléctricas. • Mantenimiento. • Seguridad. Para generar una respuesta estandarizada pero enfocada en dicha empresa se ven implicadas las normativas nacionales de STPS (Secretaría del Trabajo y Previsión Social), SENER (Secretaría de Energía), CFE (Comisión Federal de Electricidad), así como de organismos americanos tales NFPA (Asociación Nacional de Protección contra el Fuego) dichas Instituciones y organismos se encargan de regular y normar las situaciones industriales de riesgo, en términos generales se utilizaron para mejorar las condiciones de la empresa.ITESO, A.C

Levantamiento Topográfico para el diseño geométrico de 1Km de carretera, desde el costado norte de la Hacienda las Camelias hacia la Hacienda del Pozo.

El proyecto en estudio se encuentra localizado en el Municipio de Ciudad Sandino, a una distancia de 12.5 kilómetros de la Cabecera Municipal de Managua, en la comarca Cuajachillo Numero 02.Según el Ministerio de Transporte las Clasificaciones de Vías en Nicaragua se basan el Tipo de Construcción, Tipo Administrativa y por su función, en este proyecto se clasifica tipo Camino Vecinal (CV), Para la propuesta de este diseño se contemplan la velocidad de diseño de 70km/hr, para un tramo con una sección típica que contiene una carpeta de rodamiento de 7.20 metros de ancho, un derecho de vía de 30.00 metros. A la vez se propone un vehículo de diseño tipo WB-19, por la topografía del terreno se propone un peralte del 8% para terreno rural plano, lo cual se define un radio de giro de 175.00 metros, del peralte y radios de giro en cada punto de intersección en el alineamiento horizontal, a la vez se definen los valores de “K” para las curvas verticales en cresta para una velocidad de 70km/hr para el cumplimiento de criterio de distancia de detención y el criterio de distancia de adelantamiento, así como el valor de “K” para una velocidad de 70km/hr para la distancia de detención en curva cóncava. La información topográfica se obtuvo a través de levantamiento topográfico con estación total Leica TS06 plus procesados en software Civil 3D Versión 2016. A este reporte se anexa el cálculo del presupuesto para la construcción del tramo propuesto, los cuales darán una proyección de costo del proyecto el cual ascienda a los C$ 10213,725.23. (Diez millones doscientos trece mil setecientos veinticinco Córdobas con 23/100)

Improving EEG-Based Motor Imagery Classification for Real-Time Applications Using the QSA Method

We present an improvement to the quaternion-based signal analysis (QSA) technique to extract electroencephalography (EEG) signal features with a view to developing real-time applications, particularly in motor imagery (IM) cognitive processes. The proposed methodology (iQSA, improved QSA) extracts features such as the average, variance, homogeneity, and contrast of EEG signals related to motor imagery in a more efficient manner (i.e., by reducing the number of samples needed to classify the signal and improving the classification percentage) compared to the original QSA technique. Specifically, we can sample the signal in variable time periods (from 0.5 s to 3 s, in half-a-second intervals) to determine the relationship between the number of samples and their effectiveness in classifying signals. In addition, to strengthen the classification process a number of boosting-technique-based decision trees were implemented. The results show an 82.30% accuracy rate for 0.5 s samples and 73.16% for 3 s samples. This is a significant improvement compared to the original QSA technique that offered results from 33.31% to 40.82% without sampling window and from 33.44% to 41.07% with sampling window, respectively. We can thus conclude that iQSA is better suited to develop real-time applications

Demographic and Clinical Characteristics of Completed Suicides in Mexico City 2014–2015

Objective: To analyze sex differences in demographic and clinical characteristics of individuals who died by suicide in Mexico City.Method: Statistical analysis of residents of Mexico City whose cause of death was suicide, during two years period from January 2014 to December 2015, with a coroner's report. Suicide mortality rates were calculated by age, sex, and location within the city. The Chi-squared test was used to assess statistical differences.Results: From January 2014 to December 2015, 990 residents of Mexico City died by suicide (men: 78.28%, women: 21.72%). Among males, the highest mortality rates were among the groups of 20–24 and 75–79 years old, whereas in women, the group with the highest mortality rate was 15 to 19 years old. 74% of the sample used hanging as suicide method. However, men had higher rates of a positive result in the toxicology test (40%) (p < 0.05). There was no concordance between male and female suicide by city jurisdictions.Conclusion: Our results provide evidence that the characteristics of Mexico City's residents who committed suicide had significant sex-related differences, including where they used to live. Understanding the contributory factors associated with completed suicide is essential for the development of effective preventive strategies