[1] The observed differences between complex craters and multi-ringed basins are described and a combined ‘‘transient cavity/displaced zone/melt cavity’’ model is explored to account for the observations. In this ‘‘nested melt-cavity model’’, the increasing influence of the percentage of the target undergoing impact melting at the sub-impact point with increasing size (the differential melt sca...

schwannoma is a benign encapsulated slow-growing tumor that originates from schwann cells of the peripheral nerve sheath. it usually occurs in the head and neck; however, it is rare in the oral cavity. the tongue is the most common site of intraoral schwannomas, followed by the floor of the mouth, palate, gingiva, vestibular mucosa, lips and mental nerve area. we report a rare case of schwannom...

spindle cell neoplasms are defined as neoplasms that consist of spindle-shaped cells in the histopathology. spindle cell neoplasms can affect the oral cavity. in the oral cavity, the origin of the spindle cell neoplasms may be traced to epithelial, mesenchymal and odontogenic components. this article aims to review the spindle cell neoplasms of the oral cavity with emphasis on histopathology.  ...

Reducing vessel resistance by using ventilated cavities has been a highly researched topic in the marine industry. There is limited literature on supercavities near free surface, which indicates that their dynamic behavior more complex than conventional due to effect of surface. This paper employs numerical simulations study supercavity, taking into account Numerical can predict gas leakage beh...

BACKGROUND To assess the impact of intramural fibroids on the intracytoplasmic sperm injection-embryo transfer (ICSI-ET) cycle outcome, when there is no compression of the endometrial cavity. METHODS In this retrospective, matched control study, the ICSI-ET outcome of sixty-two patients (Group I) with intramural fibroid (mean diameter <7 cm) and normal endometrial cavity demonstrated by offic...

Absorption spectrophotometry, a standard tool for quantitative analysis, suffers from two major drawbacks: lack of sensitivity and vulnerability to scattering. It has been pointed out earlier that the solution to these problems lies in using a reflecting cavity as a sample holder. Due to multiple reflections at the cavity wall, the effective pathlength becomes considerably larger than the diame...

INTRODUCTION The extent of wound contamination in gunshot injuries is still a topic of controversial debate. The purpose of the present study is to develop a model that illustrates the contamination of wounds with exogenous particles along the bullet path. MATERIAL AND METHODS To simulate bacteria, radio-opaque barium titanate (3-6 μm in diameter) was atomized in a dust chamber. Full metal ja...

An adjustable resonance cavity was developed to measure the complex permittivity of dielectric materials. The cavity has an inner diameter of 16.400 cm and an inner height of 2.54 cm. The aluminum stationary wall holder was positioned about 10.8 cm above the top of the cavity. It was fixed into place by three 1.27-cm-diam linear shafts. By suspending from the wall holder, the movable wall moved...

Absorption from the joint cavity has been studied sporadically for a long time, but we are still far from a complete understanding of the mechanisms involved in the exchange between the synovial fluid, tissue fluid, synovial membrane, and the vascular spaces. Substances in solution are removed from synovial joints mainly through the capillary bed, colloidal particles including proteins are remo...

We examined current and possible future aspen stand dynamics and cavity-nesting bird abundances for Yellowstone’s northern ungulate winter range. Our measurements suggest aspen stands located within Yellowstone National Park (YNP) are in a different condition than those located in the Gallatin National Forest (GNF), immediately outside the park. Stands inside YNP were composed of more snags and...