Search results for "reciprocal"
showing 10 items of 115 documents
On the Problems of Symbol-Spaced Tapped-Delay-Line Models for WSSUS Channels
2007
Article from the journal: Wireless Communications and Mobile Computing The deposited fulltext is a preprint of the definitive article at Wiley Interscience http://dx.doi.org/10.1002/wcm.683 This paper analyzes the validity and statistical behavior of symbol-spaced tapped-delay-line (SSTDL) models for wide-sense stationary uncorrelated scattering (WSSUS) mobile radio channels. SSTDL models are obtained by sampling the channel impulse response (CIR) in delay domain at a rate equal to the reciprocal of the symbol duration. They were proposed more than four decades ago as canonical channel models for band-limited timevariant linear (TVL) systems, and are nowadays widely in use for assessing the…
Hold up and intergenerational transmission of preferences
2004
This paper focuses on the formation, evolution and stability of the distribution of preferences in the population and its relationship with the investment and bargaining strategies in a simplified hold up problem. More precisely, in our model a population of infinitely-lived players (say, for example, firms) with homogeneous selfish or self-regarding preferences is pair-wise matched at each period with a population of an equal size of short-lived players (say, for example, workers) with heterogeneous preferences. Both types of player play a two-stage game. In the first stage, they decide separately but simultaneously whether to make a general or a relation-specific investment. The latter ty…
Instrucción en estrategias de comprensión lectora mediante enseñanza recíproca: efectos del agrupamiento de los estudiantes
2013
The aim of this study was to compare the effects of two grouping formats on the reading comprehension. Reading comprehension Instruction used reciprocal teaching (RT) that is an instructional procedure to teach students cognitive strategies that might lead to improved reading comprehension. A sample of 43 students in the fourth year of primary education was selected: 18 children were instructed in regular classroom (GG), 8 were instructed in small group (PG), while the remaining 17 made up the comparison group (GC). Two types of comprehension measures were used: tasks of specific effects (getting the main idea, comprehension-monitoring test) and transfer effect measures (standardized test, …
The Positive Spiral Between Problem-Solving Management and Trust: A Study in Organizations for Individuals With Intellectual Disability
2021
To achieve their goals, organizations for individuals with intellectual disability have to stimulate high-quality relationships between professionals and family members. Therefore, achieving professionals’ trust in family members has become a challenge. One relevant factor in explaining professional’s trust in families is the degree to which family members use the “problem-solving” conflict management strategy (high concern for oneself but also for the other party) in their disputes–disagreements with professionals. It is reasonable to argue that when family members use problem-solving conflict management, professionals’ trust increases. Professionals’ trust, in turn, stimulates the use of …
Conclusione generale
2009
Le ipotesi relative alla congruenza delle attività formative progettate con gli obiettivi che ci si prefiggeva di raggiungere sono state verificate in un campione di livello medio-alto per la competenza metacognitiva.
Teacher’s Verbal Communication in the Use of Reciprocal Teaching for Reading Comprehension: An Exploratory Study
2023
Nelle classi di scuola primaria delle tre ultime annualità, molti alunni hanno difficoltà a comprendere quello che leggono male, come si ricava dalla letteratura scientifica e dalle rilevazioni nazionali e internazionali. Il Reciprocal Teaching (RT) è una pratica di apprendimento cooperativo implementata con successo per sostenere e facilitare la comprensione del testo scritto. Alla ricerca hanno partecipato 10 insegnanti di scuola primaria, 73 alunni di classe quinta primaria hanno svolto un’attività di lettura guidata con il RT. Le interazioni verbali in classe sono state osservate; successivamente sono stati analizzati i protocolli raccolti durante le osservazioni nei gruppi per verifica…
Automated electron diffraction tomography - a new tool for nano crystal structure analysis
2011
Automated electron Diffraction Tomography (ADT) comprises an upcoming method for “ab intio” structure analysis of nano crystals. ADT allows fine sampling of the reciprocal space by sequential collection of electron diffraction patterns while tilting a nano crystal in fixed tilt steps around an arbitrary axis. Electron diffraction is collected in nano diffraction mode (NED) with a semi-parallel beam with a diameter down to 50 nm. For crystal tracking micro-probe STEM imaging is used. Full automation of the acquisition procedure allowed optimisation of the electron dose distribution and therefore analysis of highly beam sensitive samples. Cell parameters, space group and reflection intensitie…
Lifelong Learning: international injunctions and university practices
2001
JEAN-PIERRE JALLADE & JOSE´-GINE´S MORAIntroductionThe aim of this article is to elucidate whether the international discourse onlifelong learning (LLL) had any influence on what universities are doing in thisfield. International trends will be examined on the basis of OECD, UNESCO,EU and Council of Europe policy documents. University practice will be based onan enquiry carried out in 28 universities in seven European countries in 1999–2000 in the framework of the project Lifelong Learning and the University,sponsored by the EU/DG 12.Between the international policy discourse and university practice stands thenational layer of policy-making, giving rise to two interesting issues: first, don…
Rumination for innovation? : analyzing the longitudinal effects of work-related rumination on creativity at work and off-job recovery
2017
ABSTRACTWork-related rumination is not a single construct, but consists of a dimension associated with negative emotions or affect (affective rumination), and a dimension associated with reflective thinking and applying strategies to solve problems (problem-solving pondering). In this three-wave longitudinal study across two years (N = 630) we investigated whether the relationships between work-related rumination, off-job recovery, and creativity at work varied along the two dimensions of work-related rumination. In addition, we tested whether the relationships followed normal, reversed, or reciprocal causation. The results showed, first, that in a one-year perspective affective rumination,…
Reciprocal extrapolation of species distribution models between two islands – Specialists perform better than generalists and geological data reduces…
2020
Abstract This study aims to test the extrapolation effects of species distribution models (SDM) using three groups of predictor variables: climate, relief and geology (bedrock type). We highlight potential ecological differences for selected taxa, regarding both generalists and specialists in terms of edaphic conditions. We used distributional data of 12 woody species shared by two large Mediterranean islands (Crete and Sicily) to calibrate Maxent models of their potential distribution. We trained models with data from Crete and extrapolated to Sicily and vice versa. We tested ten proxies for the three variable groups and compared AUC values as a measure of model performance. Extrapolation …