tubercle bacilli infect about one third of the world's population and over the past decade resurgence of tuberculosis has been a major health threat mainly due to increasing frequencies of immunosuppressive states and drug-resistant organisms. although tuberculosis is essentially a lung disease, intracranial elements become involved in 5-10% of cases either as meningitis or tumour-like masses (...

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 background: there is a broad variation in reported frequencies of seizure in multiple sclerosis (ms). in this study, the seizure and its characteristics analyzed among a large group of patients with ms. materials and methods: we reviewed the medical records of all definite ms patients referred to the ms clinic of kashani h...

BACKGROUND Vascular remodeling generated by reactive oxygen species contributes to aneurysm formation. The NADPH oxidase system is a major source of superoxide anion not only in phagocytes, but also in endothelial and vascular smooth muscle cells. Polymorphisms of p22phox, an essential component of the NADPH oxidase system, are found to be associated with atherosclerosis, while a recent study f...

Here we present observations of the Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere (CRISTA) of cirrus cloud and water vapour in August 1997 in the upper troposphere and lower stratosphere (UTLS). The observations indicate a considerable flux of moisture from the upper tropical troposphere into the extratropical lowermost stratosphere (LMS), resulting in the occurrence of hig...

The article discusses the amplitude-frequency response of a viscoelastic body dam type, under steady-state forced harmonic vibrations. An important factor is determination number frequencies and resonance peaks that arise in process effect water on dam. use finite element method (FEM) for numerical solution dynamic problems allows, by expanding terms eigenmodes frequencies, to reduce original p...

The most frequently used statistic in corpus linguistics are the frequency of occurrence of some linguistic variable and the frequency of co-occurrence of two or more linguistic variables. However, as has been pointed out correctly and repeatedly, frequencies of (co-)occurrence in isolation may sometimes be severely misleading given that they alone to not take into consideration the degree of d...

This study concentrates on the free pure radial vibrations of hollow spheres made of hypothetically functionally simple power rule graded materials having identical inhomogeneity indexes for both Young’s modulus and the density in an analytical manner. After offering the exact elements of the free vibration coefficient matrices for free-free, free-fixed, and fixed-fixed restraints, a parametric...

We have calculated the phonon frequencies of KC1 along symmetry directions using an approach which is a combination of the frozen phonon and force constants methods. We also calculated Griineisen parameters for all modes at X and L points in the Brillouin zone. Finally, the slope of acoustic dispersion curves around zone center were used to calculate the three independent elastic coefficien...

Background The pro-inflammatory cytokine, tumor necrosis factor-alpha (TNF-α), is a pathogenic element for a number of disorders. Previous studies have reported that the -1031 T/C and -238 G/A polymorphisms in the promoter region of the TNF-α gene are important factors in reproductive-related disorders. One of the most common gynecological diseases of women during the reproductive years is endo...