Sökresultat

Filtyp

Din sökning på "*" gav 549481 sökträffar

Cross-layer energy Optimization for Dynamic Video Streaming over Wi-Fi

Dynamic Adaptive Streaming over HTTP (DASH)constitutes a large fraction of traffic in the mobile Internet.Mobile devices often use video delivery over Wi-Fi, which is asignificant energy drain. Dynamic Power Saving Mode (DPSM)is one of the most widely-used approaches for Wi-Fi devices tosave power and shorten packet delay. However, DPSM uses afixed timeout before a device goes to sleep, leading to

Aspects of treatment and care of nursing home residents. Challenges and possibilities.

Background: Elderly people living in nursing homes (NHs) have multiple diseases as well as risk factors that may complicate optimal medication. Malnutrition and impaired renal function are two of those risk factors. Heart failure is common and may often not be treated or diagnosed adequately in elderly patients.Objectives: The aim of this thesis was to explore different risk factors for elderly wi

Betydelsen av fysiska och psykosociala riskfaktorer för sjukdom/besvär i muskler och leder - En uppföljningsstudie av kvinnor inom vård och skola

Vi har upprättat en kohort med 1591 kvinnor från fem vanliga yrken: Operationssköterskor (Op), anestesisköterskor (Ane), undersköterskor på operation (Usk), biomedicinska analytiker som gör ultraljudsundersökningar (BMA) samt lärarinnor (Lär). Enkät har skickats ut vid baseline och i genomsnitt ca 28 månader därefter. Data från uppföljningen är inte analyserade ännu, varför rapporten enbart omfatt

Tidstrender för perfluorerade ämnen i plasma från svenska kvinnor 1987-2007

Perfluorerade kemikalier (PFC) är en stor grupp ämnen som är misstänkt hormon- störande. De är svårnedbrytbara och stannar länge i både miljö och människa. De mest kända PFC är PFOS och PFOA. Dessa användes under många år för att im- pregnera textilier, skor, möbler och mattor, i golv- och bilvax och målarfärger, mm. Användningen började minska i början av detta århundrade då PFOS och PFOA ersatte

During self-movement humans are better at judging whether an object is moving (flow parsing) than whether they will hit it (heading)

During locomotion we can use information in the retinal flow field to judge whether we will pass to the left or right of an object in the scene (heading). We can also use information in retinal flow to judge whether an object is moving relative to the scene (flow parsing). Both judgements rely on the brain identifying optic flow (global patterns of retinal motion that are characteristic of self-mo

Disentangling the effects of object position and motion on heading judgments in the presence of a moving object

Previous research has found that moving objects bias heading perception only when they occlude the focus of expansion (FOE) in the background optic flow, with the direction of bias depending on whether the moving object was approached or at a fixed distance from the moving observer. However, the effect of object motion on heading perception was confounded with object position in previous studies.

The surprising utility of target drift in natural heading judgements

Gibson (1950) proposed that optic flow provides information about the direction of self-motion (heading) relative to objects in the environment. Llewellyn (1971) pointed out that the change in egocentric direction of an object, "drift", also provides information about whether an observer is passing to the left or right of the object. We compared the precision of heading judgements with flow and dr

Absolute pose for cameras under flat refractive interfaces

This paper studies the problem of determining the absolute pose of a perspective camera observing a scene through a known refractive plane, the flat boundary between transparent media with different refractive indices. Efficient minimal solvers are developed for the 2D, known orientation and known rotation axis cases, and near-minimal solvers for the general calibrated and unknown focal length cas

Developing research priorities for palliative care of people with intellectual disabilities in Europe : a consultation process using nominal group technique

BACKGROUND: Empirical knowledge around palliative care provision and needs of people with intellectual disabilities is extremely limited, as is the availability of research resources, including expertise and funding. This paper describes a consultation process that sought to develop an agenda for research priorities for palliative care of people with intellectual disabilities in Europe.METHODS: A

Sex and age related changes in the locomotor activity and phototactic behaviors of two closely related species of Camponotus ants.

A virgin ant queen has only one opportunity in her lifetime to realize her reproductive fitness when she leaves her nest for a mating flight. After successful mating she sheds her wings, excavates a nest and starts laying eggs to initiate her own colony. Here we report the results of our study on two related species of Camponotus ants - day active Camponotus paria and night active Camponotus compr

No title

Abstract in Arabic مع بداية النصف الثاني من القرن الماضي أو تحديدا نهاية العقد الخامس وبداية العقد السادس، انطلقت بدايات الكتابة النسائية الإبداعية في عدد من الدول العربية حتى فرضت الكاتبات العربيات وجودهن بقوة في المشهد الثقافي الإبداعي وتألقن في تقديم التجربة النسوية لاحقا، ليجسدن لنا واقع المرأة ويعبرن عن خصوصيتها الأنثوية وأحاسيسها وتجربتها الاجتماعية آأنثى، فأسمعتنا صوتها عبر شخصيتها المحورية

Association Between Fecal Calprotectin Levels and Small-bowel Inflammation Score in Capsule Endoscopy : A Multicenter Retrospective Study

BACKGROUND: Accurate inflammation reporting in capsule endoscopy (CE) is important for diagnosis and monitoring of treatment of inflammatory bowel disease (IBD). Fecal calprotectin (FC) is a highly specific biomarker of gut inflammation. Lewis score (LS) was developed to standardize quantification of inflammation in small-bowel (SB) CE images.GOALS: Multicenter retrospective study aiming to invest

Enhanced mesophilic bio-hydrogen production of raw rice straw and activated sewage sludge by co-digestion

In this study, batch biohydrogen production by co-digestion of raw rice straw and activated sewage sludge was investigated with different inoculum heat treatment, pH, S/X ratio (based on VS) and substrate sizes under mesophilic condition. In order to achieve a high bio-hydrogen yield and methanogens activity inhibition, heat treatment of inoculum was optimized at different exposure times (30, 45 &

The Combination of Biomarkers for Prognostication of Long-Term Outcome in Patients Treated with Mild Hypothermia After Out-of-Hospital Cardiac Arrest-A Pilot Study

To explore if the brain biomarker neuron-specific enolase (NSE) in combination with a biomarker for stress; CT-proAVP (copeptin), oxidation; peroxiredoxin 4 (Prx4), inflammation; procalcitonin (PCT), or with biomarkers from the heart; midregional proatrial natriuretic peptide (MR-proANP), or troponin T (TnT) can improve the prognostic accuracy of long-term outcome after out-of-hospital cardiac arr

Patients Referred for Bleeding Symptoms of Unknown Cause : Does Evaluation of Thrombin Generation Contribute to Diagnosis?

INTRODUCTION: Patients with mild to moderate bleeding symptoms referred for coagulation investigation sometimes never receive a definitive diagnosis. Bleed assessment tools have been developed and validated to assess the severity of symptoms. Global coagulation assays, e.g., the thrombin generation test (thrombogram) have a potential to identify hemostatic defects that are not detected in specific

ORGAN DOSES AND EFFECTIVE DOSE FOR FIVE PET RADIOPHARMACEUTICALS

Diagnostic investigations with positron-emitting radiopharmaceuticals are dominated by (18)F-fluorodeoxyglucose ((18)F-FDG), but other radiopharmaceuticals are also commercially available or under development. Five of them, which are all clinically important, are (18)F-fluoride, (18)F-fluoroethyltyrosine ((18)F-FET), (18)F-deoxyfluorothymidine ((18)F-FLT), (18)F-fluorocholine ((18)F-choline) and (

Matching authority and VGI road networks using an extended node-based matching algorithm

The amount of volunteered geographic information (VGI) has increased over the past decade, and several studies have been conducted to evaluate the quality of VGI data. In this study, we evaluate the completeness of the road network in the VGI data set OpenStreetMap (OSM). The evaluation is based on an accurate and efficient network-matching algorithm. The study begins with a comparison of the two

A Biomarker Panel Increases the Diagnostic Performance for Epithelial Ovarian Cancer Type I and II in Young Women

BACKGROUND/AIM: To assess preoperative blood levels of a biomarker panel in relation to the new classification system of epithelial ovarian cancer (EOC) type I and II.PATIENTS AND METHODS: Preoperative plasma levels of B7-family protein homolog 4 (B7-H4), intact and cleaved soluble urokinase plasminogen activator receptor (suPAR), human epididymis protein 4 (HE4) and cancer antigen 125 (CA125) wer