15,607 research outputs found
Introduction: Placing usage, meaning and mind at the core of contact-induced variation and change
No full textstatus: Publishe
Partially schematic constructions as engines of development:Evidence from German-English bilingual acquisition
No full textsj-docx-1-ijb-10.1177_13670069211052517 – Supplemental material for Comparing forward and reverse transfer from Dutch to German
No full textSupplemental material, sj-docx-1-ijb-10.1177_13670069211052517 for Comparing forward and reverse transfer from Dutch to German by Marie Barking, Maria Mos and Ad Backus in International Journal of Bilingualism</p
sj-docx-2-ijb-10.1177_13670069211052517 – Supplemental material for Comparing forward and reverse transfer from Dutch to German
No full textSupplemental material, sj-docx-2-ijb-10.1177_13670069211052517 for Comparing forward and reverse transfer from Dutch to German by Marie Barking, Maria Mos and Ad Backus in International Journal of Bilingualism</p
Introduction:Placing usage, meaning and mind at the core of contact-induced variation and change
No full textHeritage languages: a language contact approach Studies in bilingualism ;, 58./ Suzanne Aalberse, Ad Backus, Pieter Muysken.
No full textIncludes bibliographical references and index."Heritage languages, such as the Turkish varieties spoken in Berlin or the Spanish used in Los Angeles, are non-dominant languages, often with little prestige. Their speakers also speak the dominant language of the country they live in. Often heritage languages undergo changes due to their special status. They have received a lot of scholarly attention and provide a link between academic concerns and educational issues. This book takes a language contact perspective: we consider heritage languages from the perspective of their history, their structural properties, and their interaction with other surrounding languages"--Heritage speakers and heritage languages -- History of the field of heritage language studies -- Social aspects of heritage languages -- Bilingual language use -- Methods for collecting heritage language data -- Studying variability in heritage language speaker populations -- and the base line -- Heritage language phenomena and what triggers them -- Grammatical models and research paradigms -- Language processing in multilingual speakers -- Heritage languages in a post-colonial setting: focus on Papiamentu -- The political dimension of heritage languages: endangered languages, -- language rights, and the preservation of diversity -- Technical terms used in this book related to heritage languages1 online resource
Link stability estimation based on link connectivity changes in mobile ad-hoc networks
No full textDear Wang,
Re: Link Stability Estimation Based on Link Connectivity Changes in Mobile Ad-hoc Networks
I have not been able to assess if this is an author version peer-reviewed or is it an author version non peer reviewed. Could you please clarify this so I can proceed to add your paper to Spiral. Spiral digital repository only accept peer-reviewed papers.
30/11/12 author has confirmed peer reviewe
Cerebral atrophy in mild cognitive impairment and Alzheimer disease: rates and acceleration.
No full textOBJECTIVE: To quantify the regional and global cerebral atrophy rates and assess acceleration rates in healthy controls, subjects with mild cognitive impairment (MCI), and subjects with mild Alzheimer disease (AD). METHODS: Using 0-, 6-, 12-, 18-, 24-, and 36-month MRI scans of controls and subjects with MCI and AD from the Alzheimer's Disease Neuroimaging Initiative (ADNI) database, we calculated volume change of whole brain, hippocampus, and ventricles between all pairs of scans using the boundary shift integral. RESULTS: We found no evidence of acceleration in whole-brain atrophy rates in any group. There was evidence that hippocampal atrophy rates in MCI subjects accelerate by 0.22%/year2 on average (p = 0.037). There was evidence of acceleration in rates of ventricular enlargement in subjects with MCI (p = 0.001) and AD (p < 0.001), with rates estimated to increase by 0.27 mL/year2 (95% confidence interval 0.12, 0.43) and 0.88 mL/year2 (95% confidence interval 0.47, 1.29), respectively. A post hoc analysis suggested that the acceleration of hippocampal loss in MCI subjects was mainly driven by the MCI subjects that were observed to progress to clinical AD within 3 years of baseline, with this group showing hippocampal atrophy rate acceleration of 0.50%/year2 (p = 0.003). CONCLUSIONS: The small acceleration rates suggest a long period of transition to the pathologic losses seen in clinical AD. The acceleration in hippocampal atrophy rates in MCI subjects in the ADNI seems to be driven by those MCI subjects who concurrently progressed to a clinical diagnosis of AD
A Fair and Secure Cluster Formation Process for Ad Hoc Networks
No full textAn efficient approach for organizing large ad hoc networks is to divide the nodes
into multiple clusters and designate, for each cluster, a clusterhead which is responsible for
holding intercluster control information. The role of a clusterhead entails rights and duties.
On the one hand, it has a dominant position in front of the others because it manages the
connectivity and has access to other node¿s sensitive information. But on the other hand, the
clusterhead role also has some associated costs. Hence, in order to prevent malicious nodes
from taking control of the group in a fraudulent way and avoid selfish attacks from suitable
nodes, the clusterhead needs to be elected in a secure way. In this paper we present a novel
solution that guarantees the clusterhead is elected in a cheat-proof manner
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