65,508 research outputs found
Caracterización hidroquímica del complejo de humedales El Yali, Chile Central
No full textWithin the wetlands of the semiarid region of Central Chile, The Yali wetlands complex is the most important because it is protected as a RAMSAR's wetland. However, information about their hydro-geomorphological characteristics is almost non existent. In this study, the hydrochemical characteristics of 20 sampling sites, surveyed in July 2008 and which include coastal lagoons, estuaries, streams, saltmarshes, and reservoirs, were analyzed. The hydrochemical complexity stands out in relation to the water salinity (range = 320 - 58 800 μS/cm) and ionic composition of the studied wetlands in relation to the relative importance of the dominant water flow that sustains these wetlands. In relation to trophic state, most of the studied wetland systems are eutrophic or hypertrophic (medium values for total nitrogen = 4.7 mg/l; and soluble reactive phosphorus = 0.4 mg/l) due to the existing use of land (eucalyptus forests, cattle farms and wastewater inputs).Dentro de los humedales de la región semiárida Central de Chile, destaca el complejo denominado El Yali, por su condición de protección como Humedal RAMSAR, del que apenas existe información sobre sus características hidrogeomorfológicas. En este estudio se analiza la hidroquímica de 20 puntos de muestreo, realizados en julio de 2008, incluyendo lagunas, estuarios, esteros, salinas y embalses. Destaca su complejidad hidroquímica en relación con la salinidad (rango = 320 - 58 800 μS/cm) y el contenido iónico de los humedales estudiados en función de la importancia relativa del flujo de agua dominante. En cuanto al estado trófico, la mayoría de los sistemas estudiados son eutróficos o hipertróficos (valores medios de nitrógeno total =4.7 mg/l; y SRP (fósforo reactivo soluble) = 0.4 mg/l), como consecuencia del uso del territorio (plantaciones de eucaliptos, explotaciones ganaderas y vertidos orgánicos)
Control interno de las cuentas por cobrar de la Empresa Yali Gypsum del cantón Babahoyo periodo 2021.
No full textEste estudio de caso se lo realizo con la finalidad de un control interno a las cuentas por cobrar de la microempresa Yali Gypsum y encontrar cada una de las problemáticas que afectan directamente a las microempresa puesto que se quiere Analizar el tratamiento de las cuentas por cobrar en la empresa Yali Gypsum del cantón Babahoyo periodo 2021. La metodología a utilizar es de modalidad cualitativa, ya que parte de un enfoque interpretativo, hacia su objeto de estudio que se quiere cumplir. También la investigación de forma descriptiva ya que es un método que se basa en la observación y la utilizamos para describir el fenómeno de dicho estudio que se presentó en la microempresa. Por último, utilizaremos el método analítico que consiste en analizar cada una de las problemáticas que se encontró en la microempresa para así darle una posible solución. El aplicar un control interno a las cuentas por cobrar es muy importante porque permite evaluar de manera integral los procesos generales y específicos que se realizan dentro de una organización y por ende esta ayuda a mejorar la productividad económica y también la eficiencia y eficacia de las operaciones realizadas, basándose en los procesos que realiza la empresa respecto a sus cuentas por cobrar y el control interno que se le aplico, encontrando también ciertos problemas que estaban afectando a la empresa, se espera que el dueño propietario de Yali Gypsum tome lagunas medidas que le ayuden a mejorar su negocio para que este no se vea envuelto en problemas económicos que causen la quiebra de la misma ni mucho menos en problemas legales
Diseño de productos turísticos de los recursos potenciales para el desarrollo de la actividad turística en la Reserva Natural Cerros de Yali durante el II semestre 2012
No full textEsta investigación con enfoque de investigación acción participativa o descriptiva
se llevó a cabo en las Fincas El porvenir y El Volcán ubicados en la comunidad
Cuspire y Volcán abajo de la Reserva Natural Cerros de Yali ubicadas a 6 km del
municipio de San Sebastián de Yali del Departamento de Jinotega.
El estudio consistió en caracterizar las comunidades, la identificación de los
atractivos turísticos, proponer actividades turísticas de los recursos potenciales y
el diseño de productos turísticos de las fincas con el propósito de aprovechar el
potencial turístico que posee la Reserva Natural Cerros de Yali. Con este trabajo
se pretende facilitar una herramienta de desarrollo turístico a los pobladores de las
comunidades interesados en desarrollar estos sitios como un destino turístico,
aprovechando los recursos de una manera sostenible ya que estos generaran
empleos a los pobladores, y ayudar a que las comunidades se desarrollen social y
económicamente.
Para el diseño de los productos turísticos, se utilizo el procedimiento de productos
turísticos de Esther Lidia Machado Chaviano, adaptado a los recursos que poseen
las comunidades, ya que estos son recursos de tipo natural, cada producto tiene
su localización, accesibilidad, como se puede llegar, condiciones del entorno,
necesidad de acondicionamiento, una evaluación global, fijación de precios y se
elaboraron paquetes turísticos que se pueden ofrecer en la comunidad, con sus
respectivos precios y su itinerario, todo esto con el propósito de que puedan
ser utilizados por los pobladores al momento de empezar a prestar servicios
turísticos.
Para llevar acabo este tema de investigación se utilizo la revisión documental, la
observación, la aplicación de entrevistas a informantes claves de la comunidad,
visitas de campo a las comunidades, cámara fotográfica, memorias USB,
computadoras, et
Manejo y control de inventario de la Microempresa Yali Gypsum de la ciudad de Babahoyo en el año 2021.
No full textThis research is aimed at analyzing the management and control of the inventory of the Yali Gypsum microenterprise. Inventory control is a process by which every company or business must maintain, this is because it allows you to plan and manage the existence in the Warehouse for a time, this control also allows costs to be reduced, and obtain the greatest profit and benefit for the company. Although inventory control procedures allow the company to maintain adequate control of its products, and in turn obtain accurate information on its financial situation, certain micro-enterprises do not use an adequate merchandise control system that provides them with such information. benefits and this is due to certain influencing factors in the owners and employees. In the information of theoretical bases that was obtained, it was possible to find information that was directed to the concept and the importance of carrying out an inventory control, among which the methods and systems that facilitate the handling of the merchandise, such as the way of knowing the inputs and outputs of the products (rotation). Under the investigation, it is identified that the Yali Gypsum microenterprise, which is dedicated to the sale of materials and installation of gypsum flooring, walls and decorations, does not have an inventory control system, therefore the inventory control and registration does with a basic modality and this does not allow you to know with greater accuracy the amount of materials you have in store, the conditions in which the items are found (damaged and obsolete), or the economic capacity for future investments. To conclude, the conclusion is shown that exposes the need for the Yali Gypsum microenterprise in order to strengthen control over the inventory and also the estimation of my analysis and investigation of the present topic, so that it serves for future investigations or consultations. theoretical with reference to the theme or the similarity of the company.This research is aimed at analyzing the management and control of the inventory of the Yali Gypsum microenterprise. Inventory control is a process by which every company or business must maintain, this is because it allows you to plan and manage the existence in the Warehouse for a time, this control also allows costs to be reduced, and obtain the greatest profit and benefit for the company. Although inventory control procedures allow the company to maintain adequate control of its products, and in turn obtain accurate information on its financial situation, certain micro-enterprises do not use an adequate merchandise control system that provides them with such information. benefits and this is due to certain influencing factors in the owners and employees. In the information of theoretical bases that was obtained, it was possible to find information that was directed to the concept and the importance of carrying out an inventory control, among which the methods and systems that facilitate the handling of the merchandise, such as the way of knowing the inputs and outputs of the products (rotation). Under the investigation, it is identified that the Yali Gypsum microenterprise, which is dedicated to the sale of materials and installation of gypsum flooring, walls and decorations, does not have an inventory control system, therefore the inventory control and registration does with a basic modality and this does not allow you to know with greater accuracy the amount of materials you have in store, the conditions in which the items are found (damaged and obsolete), or the economic capacity for future investments. To conclude, the conclusion is shown that exposes the need for the Yali Gypsum microenterprise in order to strengthen control over the inventory and also the estimation of my analysis and investigation of the present topic, so that it serves for future investigations or consultations. theoretical with reference to the theme or the similarity of the company.La presente investigación está dirigida a analizar el manejo y el control del inventario de la microempresa Yali Gypsum. El control de inventario es un proceso mediante el cual toda empresa o negocio debe mantener, esto se debe a que le permite planificar y manejar a tiempo la existencia en Almacén, este control también permite que los costos sean reducidos, y obtener la mayor utilidad y beneficio para la empresa. Aunque los procedimientos de control de inventario permiten que la empresa mantenga un control adecuado de sus productos, y a su vez obtener información veraz de la situación financiera de la misma, ciertas microempresas no hacen uso de un sistema de control de mercadería adecuado que les proporcione tales beneficios y esto se debe a ciertos factores influyentes en los propietarios y empleados.
En la información de bases teóricas que se obtuvo, se pudo hallar información que iba dirigida al concepto y la importancia de llevar un control de inventario, entre ello también se expresa los métodos y sistemas que facilitan el manejo de la mercadería, como también la forma de conocer las entradas y salidas de los productos (rotación). Bajo la investigación, se identifica que la microempresa Yali Gypsum la cual se dedica a la venta de materiales e instalación de tumbados, paredes y decoraciones en gypsum no cuenta con un sistema de control de inventario, por ende el control y registro del inventario lo hace con una modalidad básica y esta no le permiten conocer con mayor exactitud la cantidad de materiales que posee en almacén, las condiciones en las que se encuentran los artículos(dañados y obsoletos), ni la capacidad económica para las futuras inversiones. Para concluir se muestran la conclusión que expone la necesidad que tiene la microempresa Yali Gypsum de modo en que se fortifique el control sobre el inventario y también la estimación de mi análisis e investigación del presente tema, de manera en que sirva para futuras investigaciones o consultas teóricas con referencia al tema o a la similitud de la empresa
Energy-Efficient Train Operation: Conclusions and Future Work
No full textThis chapter gives the basic conclusions about energy-efficient train operation covering energy-efficient train driving, energy-efficient train timetabling, regenerative braking, energy storage systems and power supply networks. Future work that will develop energy-efficient train operation further include the interaction of connected driver advisory systems (C-DAS) and automatic train operation (ATO) with railway traffic management systems, cooperative train control in platoons of virtually coupled trains, digital twin technology and particularly its application to power supply systems, and the interaction between the railway network with the electrical power grid and renewable energy generation.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Transport and Plannin
Relating Research and Teaching: comparing experiences and beliefs
No full textThe relationship between research and teaching has possible benefits and inherent tensions. It is a recurrent topic of discussion by faculty including engineering educators. Exploring a potentially beneficial relationship and is of interest and possible value to engineering faculty, our students, and our stakeholders. Institutions and departments have developed a range of approaches including research-led, research informed, or just plain scholarly. This paper examines the relationship between research and teaching in the undergraduate curriculum. It compares and contrasts evidence of the beliefs and experiences of the engineering faculty and the engineering student. It presents and analyses the result of surveys which gathered qualitative and qualitative data to explore the inter-relationship of research and teaching; in the curriculum; and as it is delivered and experienced in the lab, seminar room and lecture hall. This research builds on existing work developed in a preliminary study which examined ways in which synergies between research and teaching could be achieved, particularly in the ‘hard/applied’ areas of the curriculum. It analyses data from the ‘research-intensive’ and the ‘teaching-intensive’ perspective
Education for Cataloging in Spanish Universities: A Descriptive and Critical Study
No full textObjective: This is a critical descriptive study of the situation of cataloging as an academic discipline within Library and Information Science studies in Spain. Material and methods: The descriptive analysis of the sectional contents of the general and specific guidelines of the degrees of Diplomado (three-year degree) and Licenciado (fiveyear degree) in LIS and the curricular programs of the Spanish university schools or departments. Variables analyzed: The denomination and content descriptors of the course offerings and credit hours. The test-retest method was used, with a qualitative processing of data. Results: General data is given about the studies in LIS: their introduction, the universities that offer them, and the degrees awarded. Cataloging is considered an obligatory core subject matter, and is represented by several courses that present important differences insofar as their denominations, their credits, and their character from one curricular program to the next. The average credit requisite for obligatory courses in cataloging in Spain is 14 (1 credit = 10 class hours), and 19.7 if electives are also considered. At present, this discipline is undergoing a reform that will produce important changes as a result of the adaptation of university studies to the common framework of the European Union
Introduction to Energy-Efficient Train Operation
No full textRailway, as one of the most energy-efficient transport, plays an essential role in improving the world’s energy and environmental sustainability. Statistics about rail share of transport activities and the corresponding energy consumption will demonstrate the energy efficiency of railway and indicate the potential of developing railway transport. Therefore, this chapter will provide an overview of the railway's energy consumption and traffic volume shares. Statistics presented in this chapter show that railway energy consumption decreased in these decades while its transport volume kept stable, and the traffic volume share of the railway is extremely large in urban transport. To achieve the goal of carbon neutralization, the European Union and many countries have conducted research projects on railway energy conservation. The technologies developed in these projects include energy-efficient train driving, integrated timetabling, using regenerative braking energy, etc. A summary of these technologies is also given, along with their potential energy savings, which range from 1 to 25%. This book will analyse and illustrate the whole systems processes of train operation with optimisation solutions. The structure of the following chapters will be presented at the end.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Transport and Plannin
A Chinese lecturer in an English university: an unfinished journey
No full textThis chapter portraits a learning journey of an academic. The narrative chapter points a way forward to new modes of inter-cultural understanding of learners. The author of this chapter invites the readers to become fellow travellers to gain from his unique learning journeys an understanding of what is common to all learning. The chapter indicates that learning is often transformative, indeterminate and unfinished. The author invites readers to consider following questions: what do they tell us about learning itself? About what it means to be a learner in the first quarter of the 21st Century? What do we learn about the experience of learning
PARP Inhibitor Upregulates PD-L1 Expression and Provides a New Combination Therapy in Pancreatic Cancer
No full textPurpose: To explore whether a cross-talk exists between PARP inhibition and PD-L1/PD-1 immune checkpoint axis, and determine whether blockade of PD-L1/PD-1 potentiates PARP inhibitor (PARPi) in tumor suppression.Experimental Design: Breast cancer cell lines, xenograft tumors, and syngeneic tumors treated with PARPi were assessed for PD-L1 expression by immunoblotting, IHC, and FACS analyses. The phospho-kinase antibody array screen was used to explore the underlying mechanism of PARPi-induced PD-L1 upregulation. The therapeutic efficacy of PARPi alone, PD-L1 blockade alone, or their combination was tested in a syngeneic tumor model. The tumor-infiltrating lymphocytes and tumor cells isolated from syngeneic tumors were analyzed by CyTOF and FACS to evaluate the activity of antitumor immunity in the tumor microenvironment.Results: PARPi upregulated PD-L1 expression in breast cancer cell lines and animal models. Mechanistically, PARPi inactivated GSK3β, which in turn enhanced PARPi-mediated PD-L1 upregulation. PARPi attenuated anticancer immunity via upregulation of PD-L1, and blockade of PD-L1 resensitized PARPi-treated cancer cells to T-cell killing. The combination of PARPi and anti-PD-L1 therapy compared with each agent alone significantly increased the therapeutic efficacy in vivo.Conclusions: Our study demonstrates a cross-talk between PARPi and tumor-associated immunosuppression and provides evidence to support the combination of PARPi and PD-L1 or PD-1 immune checkpoint blockade as a potential therapeutic approach to treat breast cancer. Clin Cancer Res; 23(14); 3711–20. ©2017 AACR
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