Search results for "Planet"
showing 10 items of 5662 documents
A combined single range and single image device for low-cost measurement of building facade features
2008
The dimensions of building facades and window apertures are usually determined by making direct measurements using tapes and plummets. This approach, however, has a number of drawbacks including the physical risk to which the persons making the measurements are exposed. This paper proposes an indirect approach based on close range photogrammetry that is inexpensive, simple, fast and safe, and which does not require specialist staff or direct ground control measurements. The method is based on taking a picture using a digital camera and measuring the distance to the object using a handheld laser distance meter. Both items of equipment are mounted on a specially designed support that allows t…
Helical Shift Mechanics of Rubber V-Belt Variators
2011
A very common configuration of V-belt variators for motorcycles considers the correction of the belt tensioning depending on the resistant torque by means of suitable helical-shaped tracks allowing the driven half-pulleys to close/open. The theoretical model for belt-pulley coupling is rather complex for this configuration, where one half-pulley may run in advance and the other one behind with respect to the belt, and requires the repeated numerical solution of a strongly nonlinear differential system by a sort of shooting technique, until all the operating conditions are fulfilled (angular contact extent, torque, and axial force). After solving the full equations, the present study develop…
Effects of tilling methods on soil penetration resistance, organic carbon and water stable aggregates in a vineyard of semiarid Mediterranean environ…
2018
Tillage, especially in semiarid Mediterranean environment, enhances the mineralization process of soil organic matter (SOM) and, in turn, decreases aggregate stability. Furthermore, continuous tillage leads to the formation of plough pan beneath the tilled layer. In the present study, we investigated the effect of an innovative self-propelled machine (spading machine, SM) for shallow tillage on SOM, water stable aggregates (WSA) and soil penetration resistance (PR). Such effects were compared to those of chisel plough (CP), rotary tiller (RT) and no tillage (NT). Each tilling method was applied up to a depth of 15 cm, whereas in NT only a brush cutter was used for weed control. Soil analyse…
La ética indolora. Las alternativas ecopacifistas
2017
Se plantea la tesis de que el desarrollo de una ética ecopacifista puede considerarse una revolución histórica. La idea de revolución no tiene por qué ceñirse a la violencia y destrucción. En este artículo se rescatan las propuestas y formas de cambio social basadas en principios noviolentos y de armonía con la naturaleza. Se aporta una reflexión básica sobre el despliegue de una ética noviolenta y de una ética ecologista. Ambas, con la figura de Thoreau como punto de partida, y con el denominador común de haber subvertido los valores colectivos y los comportamientos individuales. Junto con el feminismo, han ampliado rotundamente el campo de los derechos y las metas justicia social.
La ciudad universitaria de Valencia. Un lento y continuo proceso de construcción (1908-1969)
2017
Los edificios de las facultades de Ciencias y Medicina, proyectados a principios del siglo XX en el paseo de Valencia al Mar, actual avenida Blasco Ibáñez, constituyen el origen de un espacio universitario en Valencia. Sin embargo, estos inmuebles, aun siendo importantes, no forman por sí mismos una Ciudad Universitaria. Será más tarde, cuando el arquitecto valenciano Javier Goerlich Lleó configure este lugar, a partir de tres edificios principales: el Campo de Deportes, la Residencia de Estudiantes y la Escuela de Altos Estudios Mercantiles. Los tres, aunque construidos luego, fueron proyectados durante la Segunda República, y deben su empuje inicial al rector Mariano Gómez González. La Ci…
Spinal Cord Stimulation to Treat Unresponsive Cancer Pain: A Possible Solution in Palliative Oncological Therapy
2022
(1) Background: Treatment of cancer-related pain is still challenging, and it can be managed by both medical and interventional therapies. Spinal Cord Stimulation (SCS) is a minimally invasive technique, and its use is rapidly increasing in the treatment of chronic pain. (2) Materials and Methods: Our study aims to perform a review of the pertinent literature about current evidences in cancer pain treatment by Spinal Cord Stimulation. Moreover, we created a database based on case reports or case series (18 studies) in the literature. We analyzed a clinical group of oncological patients affected by intractable pain undergoing SCS implantation, focusing on outcome. (3) Results: The analysis o…
Civilization and sexual abuse: selected Indian captivity narratives and the Native American boarding-school experience
2019
This paper offers a contrastive analysis of Indian captivity narratives and the Native American boarding-school experience. Indian captivity narratives describe the ordeals of white women and men, kidnapped by Indians, who were separated from their families and subsequently lived months or even years with Indian tribes. The Native American boarding-school experience, which began in the late nineteenth century, took thousands of Indian children from their parents for the purpose of “assimilation to civilization” to be facilitated through governmental schools, thereby creating a captivity of a different sort. Through an examination of these two different types of narratives, this paper reveal…
The Role of Wastewater in Controlling Fluvial Erosion Processes on Clayey Bedrock
2023
In recent decades, fluvial erosion processes in highly anthropized areas are mainly associated with in-stream gravel mining activities or with the presence of artificial reservoirs which have increased the erosive capacity of the river as a consequence of the reduced sediment transport or the modification of the longitudinal profile of the channel. On the other hand, the role of pollutants in the degradation processes of soils with a predominantly clayey component is little known. The present study, through chemical analyses of water and mineralogical–geotechnical analyses of clayey soil samples taken along some river channels in central Italy in correspondence with water treatment pl…
Mapificación de los centros de acogida de menores en la Comunidad Valenciana, España
2018
Tras casi veinte años, se realizó recientemente en España una reforma normativa que afecta al sistema de protección a la infancia y a la adolescencia, a través de la Ley 26/2015, del 28 de julio, y de la Ley Orgánica, del 22 de julio, de modificación del sis-tema de protección. En ellas, vuelve a establecerse que el servicio de acogimiento resi-dencial será una de las medidas de protección que se podrá decretar cuando nos encon-tremos ante un niño o niña en situación de desprotección. Al ser uno de sus principios normativos “mantener al/la menor lo más cerca posible de su entorno de origen”, nos propusimos conocer cuál era la mapificación de los centros de acogida existentes en la Comunidad…
ERA-experiment “space biochemistry”
1995
Abstract The general goal of the experiment was to study the response of anhydrobiotic (metabolically dormant) microorganisms (spores of Bacillus subtilis, cells of Deinococcus radiodurans, conidia of Aspergillus species) and cellular constituents (plasmid DNA, proteins, purple membranes, amino acids, urea) to the extremely dehydrating conditions of open space, in some cases in combination with irradiation by solar UV-light. Methods of investigation included viability tests, analysis of DNA damages (strand breaks, DNA-protein cross-links) and analysis of chemical effects by spectroscopic, electrophoretic and chromatographic methods. The decrease in viability of the microorganisms was as exp…