background: chest x-ray has an important role in the diagnosis of tuberculosis (tb). the aim of this study was to determine the radiological changes in patients with smear positive pulmonary tuberculosis.methods: in this study, 325 patients with smear positive pulmonary tb was enrolled. the affected lobe or lobes of the left or right lung were recorded. the types of involvement were categorized...

In metal machining, regenerative chatter seriously affects tool life, part surface quality and cutting efficiency. To suppress generated during milling, researchers have proposed a variable spindle speed technique. But the previous VSS milling model is based on two degrees of freedom system (two-DOF). this paper, three-DOF suitable for thin-walled parts by introducing axial contact angle. The i...

A novel technique has been developed to verify the absolute accuracy and relative stability of a spaceborne microwave radiometer’s calibration using a statistical analysis of the measured Earth brightness temperatures (TBs). This procedure relies solely on the final, main beam-referenced TBs and so tests the complete end-to-end system calibration, including instrument temperature and non-linear...

Objects displaced intermittently across the visual field will nonetheless give an illusion of continuous motion [called apparent motion (AM)] under many common conditions. It is believed that form perception is of minor importance in determining AM, and that AM is mediated by motion-sensitive areas in the "where" pathway of the cortex. However, form and motion typically interact in specific way...

We investigate the stability of negative image equilibria in mean synaptic weight dynamics governed by spike-timing-dependent plasticity (STDP). The model architecture closely follows the anatomy and physiology of the electrosensory lateral line lobe (ELL) of mormyrid electric fish. The ELL uses a spike-timing-dependent learning rule to form a negative image of the reafferent signal from the fi...

microtubule affinity-regulating kinase 2 (mark2) protein has a substantial role in regulation of vital cellular processes like induction of polarity, regulation of cell junctions, cytoskeleton structure and cell differentiation. the abnormal function of this protein has been associated with a number of pathological conditions like alzheimer disease, autism, several carcinomas and development of...

The objective in this work is to generate and discuss the stability results of fully-immersed end-milling process with parameters; tool mass m 0.0431kg, tool natural frequency 5700 rads , damping factor ξ 0 . 0 2 and workpiece cutting coefficient C 3.5 10 Nm ⁄ . Different no of teeth is considered for the end-milling. Both 1-DOF and 2-DOF chatter models of the system are generated on the basis ...

thyroid hemiagenesis can be associated with various thyroid pathologies such as papillary thyroid cancer or nodular goiter. however, we did not encounter any publication in the literature in which hemiagenesis could be observed together with retrosternal goiter. in this report, a thyroid hemiagenesis associated with a benign nodular goiter extending retrosternally is reported. a 59-year-old mal...