We present a new algorithm for efficiently training n-gram language models on uncertain data, and illustrate its use for semisupervised language model adaptation. We compute the probability that an n-gram occurs k times in the sample of uncertain data, and use the resulting histograms to derive a generalized Katz back-off model. We compare three approaches to semisupervised adaptation of langua...

background: low back pain caused by work, ranked the second after cardiovascular diseases, are among the most common reasons of patients’ referral to the physicians in iran. this study aimed to determine the changes in back compressive force when measuring maximum acceptable weight of lift in iranian male students. methods: this experimental study was conducted in 2015 on 15 young male students...

BACKGROUND Few effective pharmacological treatment options exist for chronic back pain, the leading cause of disability in the US, and all are associated with significant adverse effects. OBJECTIVE To determine the efficacy and safety of D-cycloserine, a partial agonist to the N-methyl-D-aspartate receptor, in the treatment of chronic low back pain. METHODS A total of 41 participants with c...

Neurocognition is impaired in chronic fatigue syndrome (CFS). We propose that the impairment relates to postural cerebral hemodynamics. Twenty-five CFS subjects and twenty control subjects underwent incremental upright tilt at 0, 15, 30, 45, 60, and 75° with continuous measurement of arterial blood pressure and cerebral blood flow velocity (CBFV). We used an n-back task with n ranging from 0 to...

OBJECTIVE Several studies have investigated asymmetry and loading patterns in different spine pathologies, motor disorders, and other conditions; there is a lack of knowledge on these aspects in chronic low back pain (CLBP). The aim of this study was to analyse asymmetry and loading patterns in patients with nonspecific chronic low back pain (NCLBP) compared to normal individuals, during walkin...

PURPOSE Despite the high prevalence of back pain and its subsequent effects in post-partum women, intervention programs are scarce. The purpose of this study was to test the effects of a back-pain-reducing program on post-partum women who experienced low-back pain during pregnancy. METHODS A non-equivalent control-group pretest-posttest design was used. Pregnant women who attended a hospital ...

1 This article is sponsored by NOKIA. Abstract – High speed downlink packet access (HSDPA) is an advanced proposal in 3GPP framework to ensure high peak and average packet data rate. H-ARQ is a promising technique that can improve system performance significantly in HSDPA, and much research work has been done in the study of its cell throughput performance. However, in this paper packet call th...

OBJECTIVE To assess test-retest reliability of the Posturo-Locomotion-Manual(PLM) test in patients with chronic low back pain. DESIGN A controlled study in which the PLM test was used repeatedly on patients with chronic low back pain and persons without back pain. SUBJECTS Twelve patients with treatment-resistant chronic low back pain, selected by 2 orthopaedic spine surgeons and 12 age- an...