Incremento de vocalizaciones espontáneas en deficientes mentales profundos: un caso práctico

RESUMEN

El objetivo de este trabajo fue incrementar las vocalizaciones espontáneas en un deficiente mental profundo como requisito previo antes de su incorporación a los programas de implantación del habla. El procedimiento utilizado resultó eficaz no sólo en las sesiones de tratamiento sino en su medio ambiente.     

Contexto y aprendizaje: el papel de la interacción en diferentes tipos de tareas

Resumen

Este trabajo analiza la incidencia del contexto material y social en el aprendizaje de niños entre cinco y ocho años. Se asume que puede existir una interacción entre estas dos dimensiones del contexto. Se presentan datos relacionados con el aprendizaje en una tarea causal y otra lógico-matemática considerando la eficacia de la interacción del niño con el adulto y/o los iguales. La muestra está formada por 96 niños, distribuidos en un grupo de control y dos grupos experimentales. Se realizan análisis cuantitativos y cualitativos. Los resultados muestran que la interacción individual con el adulto resulta especialmente eficaz en la tarea causal y, sobre todo, en los niños que tenían un nivel más bajo al comenzar el proceso de aprendizaje. Por otra parte, la interacción con los iguales produce mejores resultados en ambas tareas cuando los niños interactúan con otros niños más hábiles en la tarea. Finalmente, se observan diferencias en la eficacia de las estrategias de instrucción que utiliza el adulto en función del tipo de tarea.     

Identities, social representations and critical thinking

This comment on L. Simonneaux and J. Simonneaux paper focuses on the role of identities in dealing with socio-scientific issues. We argue that there are two types of identities (social representations) influencing the students’ positions: On the one hand their social representations of the bears’ and wolves’ identities as belonging to particular countries (Slovenia versus France for bears, France and Italy for wolves), in other words, as having national identities; on the other hand representations of their own identities as belonging to the field of agricultural practitioners, and so sharing this socio-professional identity with shepherds and breeders, as opposed to ecologists. We discuss how these representations of identities influenced students’ reasoning and argumentation, blocking in some cases the evaluation of evidence. Implications for developing critical thinking and for dealing with SSI in the classrooms are outlined.

ENGINEERING IN CHILDREN’S FICTION - NOT A GOOD STORY?

Responding to concerns that engineering is a poorly understood occupation and that young people are exposed to stereotyped images of scientists and engineers at an early age, this investigation sought to identify how science and engineering is portrayed in contemporary junior fiction (ages 8–12) and to what extent. An examination of 4,800 junior fiction titles in one region in New South Wales, Australia, identified as few as 71 titles that addressed themes related to engineering and the sciences. While the crazy, nerdy, scientific stereotype exists in these stories, mostly in humorous vein, we found that fictional characters were split between the nerdy, eccentric, and the more serious and professional types who were depicted as more popular. The emphasis was on male characters, but not exclusively so. There were limited details that could be associated with engineering. Where building, making, and working with machines featured, they were depicted as male activity and primarily connected to vehicles, mostly cars. We concluded that while young people, particularly girls, were unlikely to gain accurate or compelling images about engineering as an occupation from this source at present, as a medium for informing the young and their parents, the potential of fiction was considerable.     

The Relationship Between Attitudes Toward Diversity and Overall Satisfaction of University Students by Race

First- and 3rd-year university students were surveyed regarding cultural attitudes and climate. Comfort in cross-cultural situations and respect for other cultures correlated with overall satisfaction for all students. However, the more Asian Americans, Hispanic Americans, and Whites were aware of diversity and changing their behavior accordingly, the less satisfied they were. Awareness of diversity was not related to overall satisfaction for African Americans.     

Neighborhood Press and Immigration

This research studied the way immigration is depicted by the neighborhood press of Barcelona. Mainstream media tend to give visibility to immigrants when problems arise. Through this visibility based on problems, and the processes of framing, a virtual social identity is constructed and given to the immigration population. However, the neighborhood press of Barcelona, inscribed within the Catalan regional press’ own idea of journalism, offers a different approach to this issue due to its history, neighborhood and commitment to the region. Through a frame analysis, three main frames gave a depiction of the immigrants different from the one the mainstream media use. The results show that this differentiated depiction still stereotypes immigrants while not granting them enough visibility even when there is no blaming or attack. In this sense, while accounting for the differences, the neighborhood press of Barcelona misses a chance of depicting immigration in a more accurate way.     

Performance evaluation of the high sensitive troponin I assay on the Atellica IM analyser

IntroductionThe Fourth Universal Definition of Myocardial Infarction Global Taskforce recommends the use of high sensitive troponin (hs-Tn) assays in the diagnosis of acute myocardial infarction. We evaluated the analytical performance of the Atellica IM High-sensitivity Troponin I Assay (hs-TnI) (Siemens Healthcare Diagnostics Inc., Tarrytown, USA) and compared its performance to other hs-TnI assays (Siemens Advia Centaur, Dimension Vista, Dimension EXL, and Abbott Architect (Wiesbaden, Germany)) at one or more sites across Europe.Materials and methodsPrecision, detection limit, linearity, method comparison, and interference studies were performed according to Clinical and Laboratory Standards Institute protocols. Values in 40 healthy individuals were compared to the manufacturer’s cut-offs. Sample turnaround time (TAT) was examined.ResultsImprecision repeatability CVs were 1.1–4.7% and within-lab imprecision were 1.8–7.6% (10.0–25,000 ng/L). The limit of blank (LoB), detection (LoD), and quantitation (LoQ) aligned with the manufacturer’s values of 0.5 ng/L, 1.6 ng/L, and 2.5 ng/L, respectively. Passing-Bablok regression demonstrated good correlations between Atellica IM analyser with other systems; some minor deviations were observed. All results in healthy volunteers fell below the 99th percentile URL, and greater than 50% of each sex demonstrated values above the LoD. No interference was observed for biotin (≤ 1500 µg/L), but a slight bias at 5.0 g/L haemoglobin and 50 ng/L Tn was observed. TAT from was fast (mean time = 10.9 minutes) and reproducible (6%CV).ConclusionsReal-world analytical and TAT performance of the hs-TnI assay on the Atellica IM analyser make this assay fit for routine use in clinical laboratories.