Search results for "LABOR"

Gli studenti del corso di laurea in Scienze della Formazione Primaria di Palermo.

2012

Il contributo presenta i risultati di un’indagine che si è proposta di individuare le difficoltà e i bisogni formativi manifestati dagli studenti del Corso di Laurea in Scienze della Formazione Primaria, con particolare attenzione alle esigenze di unitarietà e di integrazione delle diverse attività formative previste: le esperienze dei laboratori, del tirocinio e delle lezioni. Si è inteso anche individuare gli studenti in ritardo nel loro percorso universitario, con la finalità di attivare un servizio di consulenza rivolto prevalentemente a loro. Per indagare queste dimensioni è stato costruito un questionario che ha consentito di raccogliere le opinioni e le valutazioni degli studenti su …

Macchine per abitare o sincere realizzazioni?

2014

Breve dissertazione sui Laboratori Internationali di Architettura di Camerino

Los laboratorios de la Junta para Ampliación de Estudios e Investigaciones Científicas (J.A.E.) y la Residencia de Estudiantes (1912-1939)

2007

-Jose.Luis.Barona@uv.es La política de jóvenes pensionados científicos en el extranjero desarrollada por la JAE tuvo un complemento importante en la puesta en marcha de una serie de pequeños laboratorios científicos y centros de investigación agrupados principalmente en el Instituto Nacional de Ciencias y la Residencia de Estudiantes. El presente artículo aporta una perspectiva general de la labor realizada por algunos de esos laboratorios, sus principales protagonistas y grupos de investigación, particularmente los relacionados con las investigaciones biomédicas. No se analiza la labor del Instituto Cajal o el Museo de Ciencias Naturales, que son objeto de otras contribuciones en este mism…

Teaching Inorganic Photophysics and Photochemistry with Three Ruthenium(II) Polypyridyl Complexes: A Computer-Based Exercise

2015

Among computational methods, DFT (density functional theory) and TD-DFT (time-dependent DFT) are widely used in research to describe, inter alia, the optical properties of transition metal complexes. Inorganic/physical chemistry courses for undergraduate students treat such methods, but quite often only from the theoretical point of view. In the calculation exercise herein described, students are guided step by step through the computational study of the photophysics and photochemistry of polypyridyl Ru(II) d6-metal complexes. In particular, by means of DFT and TD-DFT calculations, they are asked to examine and interpret a set of experimental data describing the absorption, emission, and ph…

Training Effects on Laboratory Parameters Are Independent of Genetic Polymorphisms of IL-10 and TNF-alpha (TNF-α)

2012

Background: It is well known that exercise has beneficial effects on health. Although intense exercise is experienced by the body as a condition of stress, a well designed training has long term beneficial effects on the organism of an athlete. Less is known about the effects that the genetic background might have on training adaptation and on the consequent modification of laboratory parameters. Methods: In our study we evaluated the blood chemistry parameters of a group of 41 athletes compared with a group of 45 amateur athletes, to assess whether the training has effects on their variation. In addition we typed our subjects for polymorphisms 308 A/G of the tumor necrosis factor-α (TNF-α)…

Editorial: In Memoriam Dr. Marcus Brewster

2014

Autoantibody detection using indirect immunofluorescence on HEp-2 cells

2009

The detection of autoantibodies is an important element in the diagnosis and monitoring of disease progression in patients with autoimmune diseases. In laboratory diagnostic tests for connective tissue and autoimmune liver diseases, indirect immunofluorescence on HEp-2 cells plays a central role in a multistage diagnostic process. Despite the high quality of diagnostics, findings at different laboratories can differ considerably due to a lack of standardization, as well as subjective factors. The present paper formulates recommendations for the standardized processing and interpretation of the HEp-2 cell test for the detection of non-organ-specific (especially antinuclear) antibodies. It pr…

Design of an open-lab activity for engineering students: A case study

2022

Project- or discovery-based learning activities promote curiosity, enjoyment, and interest deriving from the stimulating context in which students operate. Providing a concrete contextualization of laboratory activities could improve student motivation and learning outcomes. In this contribution, a case study related to a workshop on laboratory activities proposed for Engineering Master students is presented, and designed with the aim of developing practical competencies, increasing problem-solving skills, and providing design abilities. Using the facilities available in the Measurements and Control Laboratory, the students, starting from concept knowledge acquired in basic subjects, such …

Influence of the concentration of oxygen on the swimming path of Brachionus plicatilis (Rotifera)

1993

Brachionus plicatilis females were maintained for > 24 hours in water where the concentration of oxygen was precisely controlled (spherical flasks with ≥ 6 mg 1−1 or < 0.5 mg 1−1; food = dead Tetraselmis sp.). Each female was randomly taken from one flask and quickly placed in an observation chamber containing the same experimental conditions. The swimming path was videotaped (5 minutes); then the size of the female was measured. The tape was analyzed by automatic tracking (25 x, y coordinates of the center of the animal, in a 512 × 512 pixels space). The swimming path was analyzed for ~45 females in both treatments. The speed (mm s−1 body length−1) was calculated for all trajectories, or o…

Microelectrode Measurements of Oxygen Tension Distributions in Multicellular Spheroids Cultured in Spinner Flasks

1984

Since multicellular spheroids were introduced into cancer research by Sutherland et al. (1970, 1971), they have been widely used for studying the susceptibility of cancer cells to various treatment modalities. Many of these investigations provided evidence for a major role of oxygen in controlling the metabolic and cell cycle state of the tumor cells, thus modifying the responsiveness of the cells to therapy. Several investigators have measured O2 tension (PO2) distributions in spheroids with O2-sensitive microelectrodes (Carlsson et al. 1979; Kaufman et al. 1981; Mueller-Klieser and Sutherland 1982a, b, 1983; Mueller-Klieser et al. 1983). The measurements produced PO2 values that varied co…