Search results for "Computer"
showing 10 items of 30657 documents
Proclivity of sexual harassment and blame attribution in journalism: experiential narratives of ghanaian female journalists
2021
Though the proclivity of sexual-related harassments in African journalism is high, the rates of reporting of these incidences and empirical studies are low. Using a gendered approach, the study presents and exploratory inquiry into the lived experiences and impressions of Ghanaian female journalists about incidences of sexual harassments. The study examines how female journalists experience both newsroom harassments and on-assignment sexual harassments including the role they play in quid pro quo exchanges, which are relevant aspects of sexual harassments in the profession. The study also looks at blame attribution strategies female journalists adopt in assigning blame for sexual harassment…
Molecular Mechanisms of the Blockage of Glioblastoma Motility
2021
Glioblastoma (GBM) is the most common and lethal brain tumor. GBM has a remarkable degree of motility and is able to infiltrate the healthy brain. In order to perform a rationale-based drug-repositioning study, we have used known inhibitors of two small Rho GTPases, Rac1 and Cdc42, which are upregulated in GBM and are involved in the signaling processes underlying the orchestration of the cytoskeleton and cellular motility. The selected inhibitors (R-ketorolac and ML141 for Cdc42 and R-ketorolac and EHT 1864 for Rac1) have been successfully employed to reduce the infiltration propensity of GBM in live cell imaging studies. Complementarily, all-atom simulations have elucidated the molecular …
Analysis of MAC-level throughput in LTE systems with link rate adaptation and HARQ protocols
2015
LTE is rapidly gaining momentum for building future 4G cellular systems, and real operational networks are under deployment worldwide. To achieve high throughput performance, in addition to an advanced physical layer design LTE exploits a combination of sophisticated mechanisms at the radio resource management layer. Clearly, this makes difficult to develop analytical tools to accurately assess and optimise the user perceived throughput under realistic channel assumptions. Thus, most existing studies focus only on link-layer throughput or consider individual mechanisms in isolation. The main contribution of this paper is a unified modelling framework of the MAC-level downlink throughput of …
Using Talking Books to Support Early Reading Development
2009
This chapter explores the question of how interactive multimedia talking books can promote young children’s literacy development. Whilst commercially available talking books can motivate young children to read, there is little evidence that they are linked to the development of skills known to promote reading itself. The ‘Bangers and Mash’ talking books (Chera, 2000), were designed to address this issue, and we review studies that evaluated their effectiveness as classroom resources that could promote reading-related skills and abilities. We then consider the various barriers to collaborative learning in Early Years classrooms, and describe how resources like talking books could address som…
Applications of Microlocal Analysis in Inverse Problems
2020
This note reviews certain classical applications of microlocal analysis in inverse problems. The text is based on lecture notes for a postgraduate level minicourse on applications of microlocal analysis in inverse problems, given in Helsinki and Shanghai in June 2019.
Automated Railway Signs Detection. Preliminary Results
2019
Abstract Nowadays safety in railways is mostly achieved by automated system technologies such as ERTMS/ETCS. Nevertheless, on local railways (suburban and regional lines) several tasks still depend on the choices and actions of a human crew. With the aim to improve safety in such type of railways, this research proposes a system for the automatic detection and recognition of railway signs by means of the digital image processing technique. First field applications, carried out on the Italian railway network, show that the proposed system is very accurate (the percentage of correctly detected railway signs is about 97%), even at high train speeds.
Determinants of the interannual relationships between remote sensed photosynthetic activity and rainfall in tropical Africa
2007
International audience; The response of photosynthetic activity to interannual rainfall variations in Africa South of the Sahara is examined using 20 years (1981-2000) of Normalised Difference Vegetation Index (NDVI) AVHRR data. Linear correlations and regressions were computed between annual NDVI and annual rainfall at a 0.5° latitude/longitude resolution, based on two gridded precipitation datasets (Climate Prediction Center Merged Analysis of Precipitation [CMAP] and Climatic Research Unit [CRU]). The spatial patterns were then examined to detect how they relate to the mean annual rainfall amounts, land-cover types as from the Global Land Cover 2000 data set, soil properties and soil typ…
Improving Scalable K-Means++
2021
Two new initialization methods for K-means clustering are proposed. Both proposals are based on applying a divide-and-conquer approach for the K-means‖ type of an initialization strategy. The second proposal also uses multiple lower-dimensional subspaces produced by the random projection method for the initialization. The proposed methods are scalable and can be run in parallel, which make them suitable for initializing large-scale problems. In the experiments, comparison of the proposed methods to the K-means++ and K-means‖ methods is conducted using an extensive set of reference and synthetic large-scale datasets. Concerning the latter, a novel high-dimensional clustering data generation …
ASK Profilo attitudinale – Report interpretativo.
2009
L’ASK - Test di Pensiero Inferenziale fornisce una valutazione attitudinale delle abilità legate alla capacità di interpretare in maniera appropriata informazioni di diversi livelli di complessità allo scopo di derivarne delle conclusioni logiche. Il report è suddiviso nelle seguenti sezioni: 1. Profilo grafico: vengono riportati in forma numerica e grafica i risultati ottenuti dal soggetto alle singole prove e il punteggio generale di pensiero inferenziale. 2. Commento interpretativo: un commento, in forma narrativa, dell’abilità di pensiero inferenziale espressa dal soggetto, così come emerge dal test.
Exploring early adolescents’ stressful IT use experiences
2022
Early adolescents are accustomed to using information technology (IT) for different purposes as a part of their everyday life. While IT use can provide many benefits, it can also include negative experiences, such as feelings of stress (i.e. technostress). Considering that young IT users’ technostress perspectives have remained limited in the literature, this paper attempts to contrast their experiences with aspects from earlier research. A qualitative content analysis of semi-structured interviews with 31 primary and secondary school students reveals that early adolescents have encountered stressful IT use experiences that vary based on the degree of stress. The experiences relate to diffe…