El empleo de monólogos para fortalecer la comprensión auditiva en inglés como lengua extranjera

En las actuales transformaciones y condiciones de la Educación Superior en Cuba se necesitan vías y alternativas para lograr en las clases de inglés una mejor comprensión auditiva en los estudiantes, de manera que les facilite una excelente comunicación en la lengua extranjera. El presente artículo es resultado de una investigación aplicada a los estudiantes de primer año de la carrera Lenguas Extranjeras de la Universidad José Martí Pérez de Sancti Spíritus, que parte de un análisis bibliográfico desde el punto de vista pedagógico, psicológico, filosófico y sociológico y asume criterios sobre las diferentes concepciones de la comprensión auditiva y los monólogos. Posteriormente, se presentan los factores que determinan la comprensión auditiva, así como las tácticas a seguir, las características y la metodología para el trabajo con los monólogos, para desarrollar una mejor comprensión auditiva en dicha carrera, donde se constatan los resultados iniciales, se fundamenta la propuesta de monólogos, su aplicación y resultados finales. Para finalizar se relacionan las conclusiones que corroboran el objetivo de la investigación que hacen factible la continuidad de este trabajo

Evaluation of non-extruded and extruded pecan (Carya illinoinensis) shell powder as functional ingredient in bread and wheat tortilla

Pecan shell is a source of dietary fiber and phytochemicals, both necessary in the human diet. Therefore, pecan shell powder could be used as a supplement in the preparation of food products. The present study evaluated the effect of addition of 5, 10 and 15% (w/w) pecan shell powder, non-extruded (PSN) or extruded (PSE), in the physical properties of bread and wheat tortillas. Breads and tortillas produced with the higher substitution level that did not detriment significantly their physical properties (5% in breads and 10% in tortillas) were characterized in terms of chemical composition, total phenolic content (TPC), radical scavenging activity (RSA) and in vitro viability of human-derived liver cancer cells. Breads and tortillas produced with PSE (5% and 10%, respectively) presented the highest total dietary fiber content, TPC and RSA. In addition, extracts obtained from these same treatments, reduced the viability of hepatic cancer cells up to 53%. Sensory analysis of breads and tortillas supplemented with PSN or PSE showed adequate overall acceptability by consumers. Results obtained in the present study support that the pecan shell powder can be used as functional ingredient in bakery products especially when pretreated by extrusion

Design and Implementation of a Pressure Monitoring System Based on IoT for Water Supply Networks

Increasing the efficiency of water supply networks is essential in arid and semi-arid regions to ensure the supply of drinking water to the inhabitants. The cost of renovating these systems is high. However, customized management models can facilitate the maintenance and rehabilitation of hydraulic infrastructures by optimizing the use of resources. The implementation of current Internet of Things (IoT) monitoring systems allows decisions to be based on objective data. In water supply systems, IoT helps to monitor the key elements to improve system efficiency. To implement IoT in a water distribution system requires sensors that are suitable for measuring the main hydraulic variables, a communication system that is adaptable to the water service companies and a friendly system for data analysis and visualization. A smart pressure monitoring and alert system was developed using low-cost hardware and open-source software. An Arduino family microcontroller transfers pressure gauge signals using Sigfox communication, a low-power wide-area network (LPWAN). The IoT ThingSpeak platform is used for data analysis and visualization. Additionally, the system can send alarms via SMS/email in real time using the If This, Then That (IFTTT) web service when anomalous pressure data are detected. The pressure monitoring system was successfully implemented in a real water distribution network in Spain. It was able to detect both breakdowns and leaks in real time

La víctima en el aparato judicial

El contacto de la víctima del delito con la Administración de Justicia constituye ya de por sí una fuente importante de perjuicios. Factores como los económicos o la falta de información sobre sus derechos y el proceso penal pueden empeorar esta situación, dificultando el ejercicio de estos derechos y su participación en el proceso. En este boletín se resumen dos pequeños trabajos sobre la participación de la víctima en el proceso penal, realizados en los Juzgados de lo Penal de Málaga. Uno se basa en entrevistas con víctimas citadas para comparecer en el juicio penal. El otro, cuyos resultados se exponen brevemente en la última página de este boletín, es un estudio sobre la personación de la víctima en el procedimiento penal

Well-defined alkylpalladium complexes with pyridine-carboxylate ligands as catalysts for the aerobic oxidation of alcohols

Neophylpalladium complexes of the type [Pd(CH(2)CMe(2)Ph)(N-O)(L)], where N-O is picolinate or a related bidentate, monoanionic ligand (6-methylpyridine-2-carboxylate, quinoline-2-carboxylate, 2-pyridylacetate or pyridine-2-sulfonate) and L is pyridine or a pyridine derivative, efficiently catalyze the oxidation of a range of aliphatic, benzylic and allylic alcohols with oxygen, without requiring any additives. A versatile method is described which allows the synthesis of the above-mentioned complexes with a minimum synthetic effort from readily available materials. Comparison of the rates of oxidation of 1-phenylethanol with different catalysts reveals the influence of the structure of the bidentate N-O chelate and the monodentate ligand L on the catalytic performance of these complexesGobierno de España CTQ2009-11721Junta de Andalucía FQM627

Newborn infants' hair cortisol levels reflect chronic maternal stress during pregnancy

Cortisol obtained from hair samples represents a retrospective biomarker of chronic stress experienced by the subject in previous months. Although hair cortisol levels have been used to study the relationship between maternal and neonatal stress levels in primates, this has not yet been performed in humans using a longitudinal design and focusing specifically on this association. Therefore, the objective of this study was to determine whether a relationship existed between maternal psychological stress and hair cortisol levels during pregnancy and postpartum, and neonatal hair cortisol levels. The sample consisted of 80 pregnant women and their 80 newborn infants. We conducted a longitudinal assessment of hair cortisol levels, psychological stress, anxiety, and depression in the three trimesters of pregnancy and postpartum. After childbirth, neonatal hair cortisol levels were also measured. We found that maternal hair cortisol levels in the first trimester negatively predicted neonatal hair cortisol levels. Perceived stress in the third trimester of pregnancy also predicted lower neonatal cortisol, whereas pregnancyspecific stress in the same trimester had a positive relation with neonatal cortisol. Cortisol is essential for embryonic and fetal development; consequently, if fetal synthesis of cortisol is affected by high maternal cortisol levels, such development could be impaired.This work was supported by the I+D Project "PSI2015-63494-P" of the Spanish Ministry of Science and Innovation co-supported by funds/ European Regional Development Fund (ERDF) - a way to build Europe (MIPR). Besides, Mr. Borja Romero-Gonzalez has been awarded with an individual research grant (Spanish Ministry of Economy, Industry and Competitiveness, FPI Program, reference number BES-2016-077619

Protonolysis of Fe-C bonds of a diiminopyridineiron(II) dialkyl complex by acids of different strengths: Influence of monoanionic ligands on the spectroscopic properties of diiminopyiridine-FeY2 complexes

The reaction of the dialkyliron complex [Fe(CH2SiMe 3)2(MesBIP)] (MesBIP = 2,6-bis((N-mesityl)acetimidoyl)pyridine) with protic acids (HY) of different strengths (Y = C6F5O, CF3CO2, Cl, CF3SO3) invariably leads to the cleavage of both Fe-C bonds, independent of the Fe/HY ratio used (either 1:2 or 1:1), affording the corresponding complexes [FeY2(MesBIP)]. Relevant spectroscopic features of these compounds, such as paramagnetic 1H NMR shifts and UV-Vis absorption bands, exhibit a marked dependence on the nature of YGobierno de España CTQ2012-30962Junta de Andalucía FQM507

BENEFICIOS Y PROBLEMÁTICAS EN LA APLICACIÓN DE NORMAS INTERNACIONALES DE AUDITORÍA EN MÉXICO

The adoption of the ISAs, to Mexico and other countries, has benefits and problems that are seen as areas of opportunity, such a regulation is considered a worldwide standard, with a greater degree of rigor and universality, which aims to contribute to the global financial stability and offset the volatility that accompanies globalization, but also requires an assessment of regulations and legislation in the country to turn, allow the full implementation of these standards. The NIA currently given to the audit, greater confidence in Mexican law, since it sustains bajonormas reliability and certainty, that the financial statements generated by companies, are regulated uniformly, which brings logical greater acceptance of the data they contain, therefore, allow the comparison of financial reporting in an international environment, which in turn leads each generates more promotion of foreign investment in the country, in a word the harmonization of accounting field audit and internationally, and we talk to has a structured methodology for the correct development of the audit.La adopción de las NIA para México, así como, para otros países del mundo, presentan beneficios y problemáticas que son consideradas como áreas de oportunidad. Dicha normatividad es considerada una norma mundial, con mayor grado de rigurosidad y universalidad, que pretende contribuir a la estabilidad financiera mundial y contrarrestar la volatilidad que acompaña a la globalización, pero también requiere un diagnóstico sobre regulaciones y legislaciones del país, para que a su vez, permitan la implementación total de estas normas. Las NIA en la actualidad, otorga a la auditoría, mayor confianza en la normatividad mexicana, dado que se sustenta bajo normas de confiabilidad y certeza, de que los estados financieros generados por las empresas están normados de manera uniforme, lo que trae por consecuencia lógica mayor aceptación de los datos que contienen, por lo tanto, permiten el cotejo de información financiera en un ambiente internacional, lo que conlleva a que cada vez genere mayor promoción de la inversión extranjera en el país, en una palabra la armonización del ámbito contable y de auditoría a nivel internacional, ya que hablamos de que se cuenta con una metodología estructurada para el correcto desarrollo de la auditoría

Direct evidence for a coordination-insertion mechanism of ethylene oligomerization catalysed by neutral 2,6-bisiminopyridine iron monoalkyl complexes

1H NMR studies on ethylene oligomerization catalysed by the neutral monoalkyl complex [Fe(Me)(iPrBIP)] allow direct observation of alkyl iron intermediates as well as reversible ethylene coordination to the metal center, providing for the first time experimental evidence for a coordination-insertion mechanism of iron-catalysed ethylene upgrade reactions.Ministerio de Economía y Competitividad CTQ2012-30962Junta de Andalucía FQM507

Influence of soil properties on grape and must quality in the Montilla − Moriles protected designation of origin (southern Spain)

There is a growing interest among consumers in some world regions in high-quality products including wine. In this work, we examined the unique quality wines obtained in the Montilla − Moriles wine Protected Designation of Origin (PDO) (Córdoba, southern Spain). Specifically, we assessed the influence of soil properties on the production and quality of Pedro Ximénez grapes in the Montilla − Moriles PDO terroir in six vineyards typical of three different production areas, namely: Sierra de Montilla and Moriles Altos (two premium-grade areas), on soils known as “albariza”, characterized by their parent material (mainly marls and limestones), with a high calcium carbonate content and low organic matter content; and one standard-grade area (Ruedos), with soils developed on varied materials including Miocene marls, which are steeply and highly eroded. Representative soil profiles were evaluated and a field experiment to conducted to obtain data on grape production and quality over a period of three years in the six vineyards. Wine quality in the premium-grade areas was strongly influenced by physical characteristics of the vineyards (altitude and age), and also by some soil properties (limestone, poorly crystalline Fe oxides, and available P, Zn and Cu), production-related characteristics (leaf surface area exposed to solar radiation) and oenological variables (tartaric acid content). By contrast, quality in the standard-grade area was more closely related to soil sand and available Mn, and also to scarcely available P and Zn; however, grape bunches were more abundant and grapes larger (100-berry weight) in this area, and the must produced was richer in malic acid. These results suggest that soil properties in each premium-grade area of the Montilla-Moriles PDO (viz., Sierra de Montilla and Moriles Altos) set them apart from each other and distinguish them from the standard-grade area (Ruedos). Such soil properties are associated to consumer-appreciated quality-related parameters