Sistemas de evaluación de los alumnos mediante test informatizados utilizando telefonía móvil

This paper describes a system for executing adaptive tests in mobile devices. Tests are generated in XML files using Test Editor that is a author tool integrated in AHA! system. These tests are interpreted by our system that can show to the user in theirs mobile devices such as mobile phone or PDA. Our test execution engine is a Midlet, that is a small Java application oriented to be executed in a mobile device. This application can execute classic or adaptive test of type activity (it can be executed all the times that students wants) or exam (it can be only executed one time). Studens have to identify with theirs logins the first time that they execute a test. The next times is not necessary due to it is stored in the RMS memory. In this memory, we also store the interface adaptable parameters such as the language, the font type, the number of screens in which the question will be shown, etc. Finally, after executing a test the obtained results are shonw to the students and they are also send it to the AHA! server by GPRS.Este artículo presenta un sistema para la ejecución de test adaptativos en dispositivos móviles. Los test son generados en forma de ficheros XML a través de la herramienta autor Test Editor que se encuentra integrada en el sistema AHA! y son interpretados por nuestro sistema que puede mostrarlos a los usuarios en su dispositivo móvil, ya sea teléfono móvil o PDA. Nuestro motor de ejecución de test es un Midlet que es una pequeña aplicación Java orientada a ser ejecutada en dispositivos móviles. Esta aplicación permite realizar test clásicos y adaptativos de tipo actividad y de tipo examen. Si la prueba es de tipo examen, ésta sólo podrá ser ejecutada una sola vez, en cambio si es de tipo actividad se podrá ejecutar tantas veces como se quiera. Los estudiantes deben de identificarse con su login la primera vez que ejecuta el test, ya que el resto de veces éste queda almacenado en memoria RMS. En esta memora tambien son almacenados los parámetros adaptables del interfaz, ya que los estudiantes podrán personalizar la configuración de el idioma, el tipo de fuente, el número de pantallas en que se muestran las preguntas, etc. Finalmente tras ejecutar un test los resultados obtenidos son mostrados a los estudiantes y son tambien enviados al servidor de AHA! a través de GPRS

Utilization of a novel digital measurement tool for quantitative assessment of upper extremity motor dexterity: a controlled pilot study.

BackgroundThe current methods of assessing motor function rely primarily on the clinician's judgment of the patient's physical examination and the patient's self-administered surveys. Recently, computerized handgrip tools have been designed as an objective method to quantify upper-extremity motor function. This pilot study explores the use of the MediSens handgrip as a potential clinical tool for objectively assessing the motor function of the hand.MethodsEleven patients with cervical spondylotic myelopathy (CSM) were followed for three months. Eighteen age-matched healthy participants were followed for two months. The neuromotor function and the patient-perceived motor function of these patients were assessed with the MediSens device and the Oswestry Disability Index respectively. The MediSens device utilized a target tracking test to investigate the neuromotor capacity of the participants. The mean absolute error (MAE) between the target curve and the curve tracing achieved by the participants was used as the assessment metric. The patients' adjusted MediSens MAE scores were then compared to the controls. The CSM patients were further classified as either "functional" or "nonfunctional" in order to validate the system's responsiveness. Finally, the correlation between the MediSens MAE score and the ODI score was investigated.ResultsThe control participants had lower MediSens MAE scores of 8.09%±1.60%, while the cervical spinal disorder patients had greater MediSens MAE scores of 11.24%±6.29%. Following surgery, the functional CSM patients had an average MediSens MAE score of 7.13%±1.60%, while the nonfunctional CSM patients had an average score of 12.41%±6.32%. The MediSens MAE and the ODI scores showed a statistically significant correlation (r=-0.341, p<1.14×10⁻⁵). A Bland-Altman plot was then used to validate the agreement between the two scores. Furthermore, the percentage improvement of the the two scores after receiving the surgical intervention showed a significant correlation (r=-0.723, p<0.04).ConclusionsThe MediSens handgrip device is capable of identifying patients with impaired motor function of the hand. The MediSens handgrip scores correlate with the ODI scores and may serve as an objective alternative for assessing motor function of the hand

A conservation checklist of the amphibians and reptiles of Sonora, Mexico, with updated species lists

Sonora has a rich natural diversity, including reptiles and amphibians. Sonora’s location on the United States-Mexico border creates some unique conservation challenges for its wildlife. We compiled a list of the amphibian and reptile species currently known for Sonora, summarized the conservation status of these species, and compared our list of species with known species lists for adjacent states. The herpetofauna of Sonora comprises 200 species of amphibians and reptiles (38 amphibians and 162 reptiles). Overall, Sonora shares the most species with Chihuahua, Sinaloa, and Arizona. Approximately 11% of the amphibian and reptile species are IUCN listed, but 35.5% are placed in a protected category by SEMARNAT, and 32.6% are categorized as high risk by the Environmental Vulnerability Score

A non-uniform semantic analysis of the Italian temporal connectives Prima and Dopo

In this paper, I argue that the temporal connective prima ('before') is a comparative adverb. The argument is based on a number of grammatical facts from Italian, showing that there is an asymmetry between prima and dopo ('after'). On the ground of their divergent behaviour, I suggest that dopo has a different grammatical status from prima. I propose a semantic treatment for prima that is based on an independently motivated analysis of comparatives which can be traced back to Seuren (1973). Dopo is analyzed instead as an atomic two-place predicate which contributes a binary relation over events to the sentence meaning. The different semantic treatments of the two connectives provide an explanation for the grammatical asymmetries considered at the outset; interestingly, it also sheds some light on other asymmetries between prima and dopo which are known to hold for the English temporal connectives before and after as well: these asymmetries are related to the veridicality properties, the distribution of NPIs, and the logical properties of these connectives first described in Anscombe (1964)

ATLAS Data Transfer Functional Test (October 2006)

Data transfer function test was conducted in October 2006. DDM software components were used to transmit, control and monitor data movement. The main purpose of the test was to check system functionality during data transfer from CERN ATLAS centers. The issue of large files transfer is also have been tested

What Research Is Needed to Stop TB? Introducing the TB Research Movement

Christian Lienhardt and colleagues describe the development of the TB Research Movement, which aims to create a framework for concrete actions to harmonize and synergize TB research efforts globally