Search results for " Features"

Analysis and Performance Evaluation of the IEEE 802.16 ARQ Mechanism

2008

The IEEE 802.16 standard defines the ARQ mechanismas a part of the MAC layer. The functioning of the ARQmechanism depends on a number of parameters. The IEEE802.16 specification defines them but it does not provide concrete values and solutions. This paper studies the key features and parameters of the 802.16 ARQ mechanism. In particular, we consider a choice for the ARQ feedback type, an algorithm to build block sequences, the ARQ feedback intensity, a scheduling of the ARQ feedbacks and retransmissions, the ARQ block rearrangement, ARQ transmission window and the ARQ block size. We ran simulation scenarios to study these parameters and how they impact the performance of application protoc…

Move the way you feel : effects of musical features, perceived emotions, and personality on music-induced movement

2013

Theory and Practice of Legislation Journal in Volume 2, Number 2, November 2014.

2014

This special issue of The Theory and Practice of Legislation presents one of the outcomes of the project launched at the Sir William Dale Centre by Prof. Helen Xanthaki and Dr. Giulia Adriana Pennisi in 2013 and entitled Legislative Drafting and Language. The projects investigates the crossroad between legislative drafting and language/linguistics with the aim to open a new agenda: the use of teachings from the discipline of linguistics in applications useful and relevant to legislative drafting. An example of the results gained thus far are the two workshops on “Legislative Drafting and Language” that took place at the IALS in June 2013 and June 2014 respectively, and witnessed the partici…

Žurnāla “Forbes” ziņu lingvistiskās iezīmes Facebook vietnē

2019

Lai gan internets un tehnoloģijas nav vienīgie faktori, kas mūsdienās sekmē izmaiņas valodā, tie noteikti ir snieguši savu ieguldījumu. Tā kā tīmekļa valodas un sociālo tīklu jēdzieni ir salīdzinoši jauni, nav daudz pētījumu veikti par tīmekļa lingvistiskajām iezīmēm. Tāpēc šī darba mērķis ir izpētīt valodas iezīmes Forbes ierakstos Facebook vietnē. Kā pētījuma metodes tiek izmantots literatūras apskats un kvantitatīva un kvalitatīva uz teksta krājuma balstīta lingvistiskā analīze kā arī tiek izmantota aptauja. Analīze atklāj, ka Forbes Facebook ierakstu nozīmīgākās valodas iezīmes ir trešās personas vietniekvārdi, modālie darbības vārdi, kas attiecas uz atļauju, iespēju vai spēju, vienkārš…

Motor imagery in unipolar major depression

2014

International audience; Background: Motor imagery is a potential tool to investigate action representation, as it can provide insights into the processes of action planning and preparation. Recent studies suggest that depressed patients present specific impairment in mental rotation. The present study was designed to investigate the influence of unipolar depression on motor imagery ability. Methods: Fourteen right-handed patients meeting DSM-IV criteria for unipolar depression were compared to 14 matched healthy controls. Imagery ability was accessed by the timing correspondence between executed and imagined movements during a pointing task, involving strong spatiotemporal constraints (spee…

Emotional expression in music: contribution, linearity, and additivity of primary musical cues

2013

The aim of this study is to manipulate musical cues systematically to determine the aspects of music that contribute to emotional expression, and whether these cues operate in additive or interactive fashion, and whether the cue levels can be characterized as linear or non-linear. An optimized factorial design was used with six primary musical cues (mode, tempo, dynamics, articulation, timbre, and register) across four different music examples. Listeners rated 200 musical examples according to four perceived emotional characters (happy, sad, peaceful, and scary). The results exhibited robust effects for all cues and the ranked importance of these was established by multiple regression. The …

Acoustic Features of Voice in Patients with Snoring

2011

Objective: Determine whether the acoustic characteristics of snoring sounds differed between 30 simple male adult snorers (group A) and 30 healthy adult male subject (group B) by using a multidimensional voice program (MDVP), which is a commonly used computer program that analyzes various aspects of voice.Method: Group A patients presented a Friedman tongue position grade I, tonsil size 2 to 3, a body mass index of 15. Phonetically balanced sentences and sustained vowels a, e, and i were digitally recorded with the MDVP; evaluation of voice handicap index (VHI) was done too.Results: Compared with control group, in group A: the acoustic parameters presented a statistically significantly high…

Motor asymmetry attenuation in older adults during imagined arm movements

2014

International audience; Laterality is an important feature of motor behavior. Several studies have shown that lateralization in right-handed young adults (i.e., right versus left arm superiority) emerges also during imagined actions, that is when an action is internally simulated without any motor output. Such information, however, is lacking for elderly people and it could be valuable to further comprehend the evolution of mental states of action in normal aging. Here, we evaluated the influence of age on motor laterality during mental actions. Twenty-four young (mean age: 24.7 +/- 4.4 years) and 24 elderly (mean age: 72.4 +/- 3.6 years) participants mentally simulated and actually execute…

Visceral adiposity index and exercise in non-alcoholic fatty liver disease: authors’ reply

2012

We thank Prof. Filik for his interest in our recent article. 2 He points to the fact that the interpretation of our results could be affected by lack of data on physical activity and diet. In response to this issue, we are aware that both physical activity and diet are able to affect not only anthropometric and metabolic parameters of visceral adiposity index (VAI) but also the severity of liver disease. Unfortunately, data on both physical activity and diet in our patients with biopsy-proven non-alcoholic fatty liver disease (NAFLD) are not available, even if we are confident that their variations should not significantly affect our results. In fact, in our study, we evaluated histological…

OARSI/OMERACT Initiative to Define States of Severity and Indication for Joint Replacement in Hip and Knee Osteoarthritis. An OMERACT 10 Special Inte…

2011

Objective.To define pain and physical function cutpoints that would, coupled with structural severity, define a surrogate measure of “need for joint replacement surgery,” for use as an outcome measure for potential structure-modifying interventions for osteoarthritis (OA).Methods.New scores were developed for pain and physical function in knee and hip OA. A cross-sectional international study in 1909 patients was conducted to define data-driven cutpoints corresponding to the orthopedic surgeons’ indication for joint replacement. A post hoc analysis of 8 randomized clinical trials (1379 patients) evaluated the prevalence and validity of cutpoints, among patients with symptomatic hip/knee OA.…