Search for dissertations about: "AD"

Showing result 6 - 10 of 974 swedish dissertations containing the word AD.

2. 6. Implementation and Experimental Evaluation of Wireless Ad hoc Routing Protocols

   Author : Henrik Lundgren; Per Gunningberg; Christian Tschudin; Marco Conti; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; wireless ad hoc network; mobile ad hoc network; MANET; experimental evaluation; real world experiments; communication gray zone; gray zone; routing protocol; ad hoc networking; Computer science; Datavetenskap;

   Abstract : A wireless ad hoc network consists of a number of mobile nodes that temporarily form a dynamic infrastructure-less network. New routing protocols that can adapt to the frequent topology changes induced by node mobility and varying link qualities are needed. READ MORE

4. 7. Identity and Anonymity in Ad Hoc Networks

   Author : Leonardo Augusto Martucci; Simone Fischer-Hübner; Tuomas Aura; Karlstads universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; privacy; identity; anonymity; pseudonymity; Sybil attack; security; ad hoc; coputer networks; Datavetenskap; Computer Science;

   Abstract : In ad hoc networks every device is responsible for its own basic computer services, including packet routing, data forwarding, security, and privacy. Most of the protocols used in wired networks are not suitable for ad hoc networks, since they were designed for static environments with defined borders and highly specialized devices, such as routers, authentication servers, and firewalls. READ MORE

5. 8. AD/HD and autism spectrum disorders in adults

   Author : Björn Hofvander; Malmö Rättspsykiatri; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Behaviour disorders; Comorbidity; AD HD; Autism spectrum disorders; Outcome;

   Abstract : Background: Attention deficit/hyperactivity disorder (AD/HD) and autism spectrum disorders (ASDs) are early-onset, but often life-time impairing, neurodevelopmental disorders. They are highly overlapping and seem to carry considerable risks of negative outcomes, psychiatrically and psychosocially. READ MORE

6. 9. Stress steroids as accelerators of Alzheimer's disease. : Effects of chronically elevated levels of allopregnanolone in transgenic AD models

   Author : Sara Bengtsson; Mingde Wang; Torbjörn Bäckström; Maja Johansson; Caroline Graff; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Allopregnanolone; Alzheimer s disease; beta-amyloid; synaptophysin; chronic stress; Morris water maze; obstetrik och gynekologi; Obstetrics and Gynaecology; medicinsk farmakologi; Medical Pharmacology; Neurology; neurologi; Geriatrics; geriatrik; medical behavioral science; medicinsk beteendevetenskap;

   Abstract : Background Alzheimer’s disease (AD) and dementia are devastating con­ditions not only for the affected patients but also for their families.  The economical costs for the society are tremendous. READ MORE

7. 10. Ad hoc routing protocol validation

   Author : Oskar Wibling; Joachim Parrow; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Datavetenskap; Computer Science;

   Abstract : We explore and evaluate methods for validation of ad hoc routing protocols which are used to set up forwarding paths in spontaneous networks of mobile devices. The focus is automatic formal verification but we also make an initial account of a protocol performance comparison using structured live testing. READ MORE