Cognitive radios (CRs) are emerging as a promising technology to enhance spectrum utilization through opportunistic on-demand access. Many spectrum access/sharing algorithms for CR networks (CRNs) have been designed assuming multiple transceivers per CR user. However, in practice, such an assumption may not hold due to hardware cost. In this paper, we address the problem of assigning channels t...

Given a connected graph G=(V,E) and length function ℓ:E→R we let dv,w denote the shortest distance between vertex v w. A t-spanner is subset E′⊆E such that if dv,w′ denotes distances in subgraph G′=(V,E′) then dv,w′≤tdv,w for all v,w∈V. We show large class of graphs with suitable degree expansion properties independent exponential mean one edge lengths, there w.h.p. 1-spanner uses ≈12nlogn edge...

BACKGROUND AND PURPOSE Bronchiectasis revealed by high-resolution computed tomography (HRCT) is common in chronic obstructive pulmonary disease (COPD), but the causes and risk factors remain to be determined. Chronic rhinosinusitis (CRS) is closely associated with bronchiectasis or COPD, but whether it is associated with comorbid bronchiectasis in COPD (COPD-Bx) is unknown. PATIENTS AND METHO...

Definitive concomitant chemoradiotherapy (CRT) with high-dose cis-platinum (CDDP) is a current standard protocol for advanced laryngeal and hypopharyngeal cancer sparing surgery for salvage. However, this modality is associated with limited feasibility and frequent sever toxicities. In the present study, a 'chemoradioselection' protocol with minimal toxicity was developed using initial response...

The GDA (Glol)al Do(:ument Annotation) t)roject t)roposes a tag set which allows machines to automatically infer the underlying semantic/pragmatic structure of documents. Its objectives are to promote development and spread of N L P / A I at)plications to render GDA-tagged do(:uments versatile and intelligent (:ontents, wld(:h shouhl motiwtte W W W (World Wide Web) users to tag their doemnents ...

Artykuł podejmuje aspekty związane ze współczesnym przeobrażeniem kategorii humoru w socjolekcie i zwyczajach komunikacyjnych młodzieży. Materiał egzemplifikacyjny stanowią teksty zaczerpnięte z języka dyskursu młodzieżowego prowadzonego różnych „kanałach” typach komunikacji zapośredniczonej cyfrowo (w tym bazy danych do Młodzieżowego Słowa Roku). W przemiany jako pokłosia zjawisk kulturowych, ...

Coordinated reset stimulation (CRS) consists of spatiotemporal sequences of stimuli delivered to different sites in the brain. Computationally, it was shown that by achieving an unlearning of abnormal synaptic connectivity, CRS can cause a long-lasting reduction of pathological synchronization, a hallmark feature of Parkinson's disease and other brain disorders. Pre-clinical and proof of concep...

We consider a cognitive radio network in which a set of base stations make opportunistic spectrum access to support cognitive radios within their cells. As the spectrum of interest is licensed to the operator of a primary network, channel assignment and power control must be carried out in the cognitive network so that no excessive interference is caused to users of the primary network. Given t...

UNLABELLED Chimeric antigen receptor (CAR)-modified T cells with anti-CD19 specificity are a highly effective novel immune therapy for relapsed/refractory acute lymphoblastic leukemia. Cytokine release syndrome (CRS) is the most significant and life-threatening toxicity. To improve understanding of CRS, we measured cytokines and clinical biomarkers in 51 CTL019-treated patients. Peak levels of ...