Search results for "LSA"
showing 10 items of 832 documents
A Culturally Sensitive Approach to Promoting Initial Literacy Development in Africa : Ongoing and Planned Research and Development at the University …
2017
A four-year research and development program at CAPOLSA (the Centre for the Promotion of Literacy in Sub-Saharan Africa) was inspired by widespread dissatisfaction with poor literacy outcomes of mass basic schooling in Zambia and sought to test the generalizability of a scientifically grounded, computer-mediated instructional resource developed in Finland, for effective intervention in an African society where different linguistic and educational conditions obtain. Specific challenges and opportunities posed by the local sociocultural context included the prevalence of multilingualism, the relatively transparent orthographies of local languages, and poor infrastructure of the public school …
Regional-scale modeling of reference evapotranspiration: Intercomparison of two simplified temperature- and radiation-based approaches
2015
Two regionalized models for the distributed estimation of daily reference evapotranspiration, the temperature-based Hargreaves (HE) and the radiation-based Makkink (MK) equations, are applied in Southern Italy during the years 2007 and 2008. Spatially distributed meteorological inputs, such as air temperature and incoming solar radiation, were derived from geostatistical interpolation of ground data and from the Land Surface Analysis Satellite Application Facility (LSA-SAF) surface radiation product, respectively. Comparison of the latter with 83,394 daily measurements provided by 128 weather stations shows a not negligible seasonal error in daily solar radiation that is corrected by means …
A multilocus sequence analysis scheme for characterization of Flavobacterium columnare isolates
2015
Background Columnaris disease caused by Flavobacterium columnare is a serious problem in aquaculture, annually causing large economic losses around the world. Despite considerable research, the molecular epidemiology of F. columnare remains poorly understood. Methods We investigated the population structure and spatiotemporal changes in the genetic diversity of F. columnare population in Finland by using a multilocus sequence typing (MLST) and analysis (MLSA) based on DNA sequence variation within six housekeeping genes. A total of 83 strains of F. columnare were collected from eight different areas located across the country between 2003 and 2012. Results Partial sequencing of six housekee…
Is it possible to predict late antepartum stillbirth by means of cerebroplacental ratio and maternal characteristics?
2019
Objective: To examine the potential value of fetal ultrasound and maternal characteristics in the prediction of antepartum stillbirth after 32 weeks’ gestation. Methods: This was a retrospective multicenter study in Spain. In 29 pregnancies, umbilical artery pulsatility index (UA PI), middle cerebral artery pulsatility index (MCA PI), cerebroplacental ratio (CPR), estimated fetal weight (EFW), and maternal characteristics were recorded within 15 days prior to a stillbirth. The values of UA PI, MCA PI, and CPR were converted into multiples of the normal median (MoM) for gestational age and the EFW was expressed as percentile according to a Spanish reference range for gestational age. Data fr…
Novel Simulation Model with Pulsatile Flow System for Microvascular Training, Research, and Improving Patient Surgical Outcomes
2020
Background Simulation allows surgical trainees to acquire surgical skills in a safe environment. With the aim of reducing the use of animal experimentation, different alternative nonliving models have been pursued. However, one of the main disadvantages of these nonliving models has been the absence of arterial flow, pulsation, and the ability to integrate both during a procedure on a blood vessel. In the present report, we have introduced a microvascular surgery simulation training model that uses a fiscally responsible and replicable pulsatile flow system. Methods We connected 30 human placentas to a pulsatile flow system and used them to simulate aneurysm clipping and vascular anastomosi…
Vairāku izmeklētu organisko reakciju pētījumi ar molekulārās modelēšanas metodēm
2015
Šajā darbā ir pētītas un analizētas butadiēna un etēna Dīlsa-Aldera reakcija, 1,5 heksadiēna Koupa reakcija, 2,3 diazabiciklo(2.2.1)hept-2-ēna deazetizēšana un N neopentilmaleisoimīda un 2,3 dimetilbutadiēna Dīlsa-Aldera reakcijas katalīze. Nosauktajās reakcijās atrasti un optimizēti svarīgākie stacionārie punkti. Modelēta Dīlsa-Aldera, Koupa un 2,3-diazabiciklo(2.2.1)hept-2-ēna deazetizēšana reakciju dinamika un secināts par UB3LYP funkcionāļa nelietderību pēdējā no šīm reakcijām. Ir izvērtēti vairāki potenciālie N neopentilmaleisoimīda un 2,3-dimetilbutadiēna Dīlsa-Aldera reakcijas katalizatori kā arī optimālākie piedāvāti tālākiem laboratorijas eksperimentiem. Molekulārās modelēšana anal…
Los motivos caballerescos del manuscrito encontrado y el falso cronista en El Señor de los Anillos
2013
El manuscrito encontrado es uno de los motivos presentes en la mayoría de los libros de caballerías y, si bien se trata de un elemento de origen remoto, su frecuente aparición en estas obras, ha hecho que se convierta en uno de sus rasgos característicos. En este artículo se pone de manifiesto la forma en que se plasma este mismo motivo en El Señor de los Anillos de J.R.R. Tolkien, autor que tenía una especial vinculación con la literatura medieval y con lo hispánico.
Humorist Bot: Bringing Computational Humour in a Chat-Bot System
2008
A conversational agent, capable to have a ldquosense of humourrdquo is presented. The agent can both generate humorous sentences and recognize humoristic expressions introduced by the user during the dialogue. Humorist Bot makes use of well founded techniques of computational humor and it has been implemented using the ALICE framework embedded into an Yahoo! Messenger client. It includes also an avatar that changes the face expression according to humoristic content of the dialogue.
Global, regional, and national burden of mortality associated with non-optimal ambient temperatures from 2000 to 2019: a three-stage modelling study
2021
Background: Exposure to cold or hot temperatures is associated with premature deaths. We aimed to evaluate the global, regional, and national mortality burden associated with non-optimal ambient temperatures. Methods: In this modelling study, we collected time-series data on mortality and ambient temperatures from 750 locations in 43 countries and five meta-predictors at a grid size of 0·5° × 0·5° across the globe. A three-stage analysis strategy was used. First, the temperature–mortality association was fitted for each location by use of a time-series regression. Second, a multivariate meta-regression model was built between location-specific estimates and meta-predictors. Finally, the gri…