First record of the invasive bee Anthidium manicatum (Hymenoptera: Megachilidae) in Chile

The Palearctic wool carder bee Anthidium manicatum (Linnaeus) is recorded for the first time in Chile based on eight specimens collected on Lavandula sp. (Lamiaceae) in San Bernardo, Metropolitan Region.  This new record expands the invasive range of this species in South America, confirming previous predictions based on an ecological niche model

Attitudes expressed in online comments about environmental factors in the tourism sector: an exploratory study

The object of this exploratory study is to identify the positive, neutral and negative environment factors that affect users who visit Spanish hotels in order to help the hotel managers decide how to improve the quality of the services provided. To carry out the research a Sentiment Analysis was initially performed, grouping the sample of tweets (n = 14459) according to the feelings shown and then a textual analysis was used to identify the key environment factors in these feelings using the qualitative analysis software Nvivo (QSR International, Melbourne, Australia). The results of the exploratory study present the key environment factors that affect the users experience when visiting hotels in Spain, such as actions that support local traditions and products, the maintenance of rural areas respecting the local environment and nature, or respecting air quality in the areas where hotels have facilities and offer services. The conclusions of the research can help hotels improve their services and the impact on the environment, as well as improving the visitors experience based on the positive, neutral and negative environment factors which the visitors themselves identified

La orientación al mercado del sector financiero: Análisis de la importancia de la fuerza de ventas

This paper examines the relationship of customer orientation - at both the organizational and the individual sales level - on salesperson performance for financial products. A survey of 146 sales managers of different Spanish banks was analyzed using structural equation modeling. The results provided here highlight the relevant mediating role of salesperson customer orientation on sales performance and reinforces the role of salespeople in achieving an appropriate organizational market orientation.Este artículo examina el impacto de la orientación al cliente -tanto desde un punto de vista organizacional como desde una perspectiva de ventas individual- sobre los resultados de la fuerza de entidades financieras. Para ello, se han llevado a cabo encuestas a 146 directivos del sector comercial de diferentes bancos y cajas de ahorros españolas. El modelo creado se ha analizado utilizando ecuaciones estructurales. Los resultados evidencian la importancia de que los vendedores tengan una buena orientación hacia el cliente para que la fuerza de ventas consiga unos resultados empresariales óptimos y la organización logre un adecuado nivel de orientación al mercad

Report on evaluating Brachiaria humidicola population Bh16B hybrid performance

The population Bh16b was formed from the remnant seed of the best crosses identified from Bh16 population. As the intra-family variance in that trial was higher than the inter-family variance, and considering the constrains to develop a new Bh hybrid population, the breeder decided to take advantage of intra-family variance and explore those hybrids stored in the seed storage room. Conformed by 1046 hybrids, Bh16b was phenotyped on the field in order to measure the hybrid performance for the following traits: Visual assessment of biomass production, vigor, high, visual assessment of leaf steam ratio and drone based measurements like biomass and greenness. The trials were stablished at two locations: CIAT Palmira and Llanos-Cabuyaro. Each trial followed an augmented design with 25 incomplete blocks. Data was obtained for various cuttings in each location, each cutting after 6 weeks from previous one, to pursue two cuttings from the dry and two from the wet season

Aspergilosis en aves: Revisión sistemática y meta-análisis

No existen meta-análisis que describan la prevalencia de aspergilosis en aves los cuales puedan usarse para definir la importancia de esta enfermedad en la salud pública. Materiales y métodos: Se hizo una búsqueda de literatura en las bases de datos, Medline, Scielo y Scopus, se realizó un meta-análisis con un modelo de efectos fijos, para calcular las prevalencias combinadas y sus intervalos de confianza del 95% (95% IC). Se evaluó la heterogeneidad de los estudios usando las pruebas estadísticas Q de Cochran, índice I2 y el test Tau-cuadrado. Se realizaron sub-análisis según las especies de este agente, familia de aves, zonas geográficas, procedencia de los animales, así como también por el año de publicación de los artículos. El sesgo de publicación fue evaluado usando el funnel-plot y se confirmó con la prueba de Egger. Resultados: En la literatura se encontraron 974 artículos de los cuales 14 fueron válidos para el meta-análisis..

Estudio sobre la estimación del AIU (Administración, Utilidades e Imprevistos) en empresas que desarrollan proyectos de ingeniería civil en la ciudad de Bogotá

Trabajo de InvestigaciónEl objetivo del proyecto es presentar las características y parámetros utilizados en las empresas de ingeniería civil en el sector de la construcción y la consultoría en la estimación del AIU. El proyecto esta compuesto inicialmente por una descripción de las empresas estudiadas, la caracterización y definición de cada uno de los componentes (administración, utilidades e imprevistos) y finalmente mediante gráficos de control X-R se presentan los rangos entre los cuales las empresas manejan su utilidades e imprevistos.PregradoIngeniero Civi

Is location a significant parameter in the layer dependent dissection properties of the aorta?

Proper characterisation of biological tissue is key to understanding the effect of the biomechanical environment in the physiology and pathology of the cardiovascular system. Aortic dissection in particular is a prevalent and sometimes fatal disease that still lacks a complete comprehension of its progression. Its development and outcome, however, depend on the location in the vessel. Dissection properties of arteries are frequently studied via delamination tests, such as the T-peel test and the mixed-mode peel test. So far, a study that performs both tests throughout different locations of the aorta, as well as dissecting several interfaces, is missing. This makes it difficult to extract conclusions in terms of vessel heterogeneity, as a standardised experimental procedure cannot be assured for different studies in literature. Therefore, both dissection tests have been here performed on healthy porcine aortas, dissecting three interfaces of the vessels, i.e., the intima-media, the media-adventitia and the media within itself, considering different locations of the aorta, the ascending thoracic aorta (ATA), the descending thoracic aorta and the infrarenal abdominal aorta (IAA). Significant differences were found for both, layers and location. In particular, dissection forces in the ATA were the highest and the separation of the intima-media interface required significantly the lowest force. Moreover, dissection in the longitudinal direction of the vessel generally required more force than in the circumferential one. These results emphasise the need to characterise aortic tissue considering the specific location and dissected layer of the vessel

Analysis of grip specificity on force production in grapplers and its effect on bilateral deficit grip specificity and bilateral deficit in force production among grapplers

The use of strength training is important for athletes in combat sports such as judo and jiu-jitsu. Specificity is key when prescribing strength training programs for athletes, considering maximal strength, muscular power and strengthendurance. Grappling combat sports require grip control, which is necessary to execute throwing techniques and groundwork. The aim of this study was to verify the bilateral strength deficit in general and in grappling combat sportspecific action in the control group and grapplers. A sample of 73 subjects, divided into 2 groups, was used: the Student Group (15 females and 16 males) and the Grappler Group (29 males and 13 females). The male and female participants attended four laboratory sessions over a 48-hour interval, the first two to familiarize themselves with the Electromechanical Functional Dynamometer (EMFD), and the last two to collect maximal isometric strength data, using a standard grip and a judo/jiujitsu specific grip. Significant differences in mean and peak forces (p < 0.001) were found, with high performance combat sport athletes having greater maximal isometric strength compared to students both bilaterally and unilaterally (p < 0.001). All comparisons also indicated higher values for males compared to females (p < 0.001). The results suggest that specific training in combat sports as well as sex differences play a significant role in maximal isometric strength performance. The type of grip used affects the application of force in the upper limb isometric strength tests, finding a main effect of grip type (p < 0.001), with the standard grip obtaining higher levels. However, the dominance between hands remains constant. More research is needed on specific judogi/jiu-jitsu-gi grips and their impact on maximal isometric strength with the EMFD