The re cently rec og nized Bridesville talc-car bon ate de posit, in the Green wood – Bridesville area of south ern BC, is the sed i men tary-hosted va ri ety. It has a lower grade than most tra di tional high-grade car bon ate-hosted talc de pos its, such as Henderson, Conley and East de pos its lo cated in On tario (Simandl, 1985b) and those in Montana, United States. How ever, a par al lel m...

BACKGROUND Chemical pleurodesis is widely recommended in the treatment of refractory pleural effusion or pulmonary air leak of different etiologies. Although several agents have been used, many questions have remained unanswered about their toxicity. Talc is the most commonly used agent for the treatment, with rare, serious complications reported. Oxytetracycline pleurodesis in clinical practic...

INTRODUCTION Talc and 10-Å phase are potentially important H 2 O-bearing phases in the Earth's upper mantle. Talc, Mg 3 Si 4 O 10 (OH) 2 , is common in hydrothermally-altered and SiO 2-metasomatised ultramafic rocks. It is stable to ~800°C at 3 GPa, decreasing to 700°C at 5 GPa [1]. Above ~4 5 GPa, and in the presence of excess H 2 O, it reacts to 10-Å phase, Mg 3 Si 4 O 10 (OH) 2 .xH 2 O. 10-Å...

Compositional variations of talc in peridotites and serpentinites could have significant implications for modeling geochemical cycles involving the upper mantle but been scarcely studied. We analyzed chemical compositions prograde retrograde associated minerals thermally metamorphosed from Southwest Japan. The has Si, Al, Mg, Fe, Na contents. Most Fe indicate mechanical mixing with serpentine c...

For pleurodesis, talc administered by poudrage is usually insufflated blindly from a single port of entry using the standard method with a small-diameter rigid thoracoscope. In order to visually perform talc poudrage from a single port, we introduced a catheter technique through a flexi-rigid thoracoscope. Patients with uncontrolled and symptomatic pleural effusion requiring pleurodesis underwe...

Molecular dynamics (MD) simulations of water confined in nanospaces between layers of talc (system composition Mg(3)Si(4)O(10)(OH)(2) + 2H(2)O) at 300 K and pressures of approximately 0.45 GPa show the presence of a novel 2-D ice structure, and the simulation results at lower pressures provide insight into the mechanisms of its decompression melting. Talc is hydrophobic at ambient pressure and ...

Episodic tremor and slow slip (ETS) downdip of the subduction seismogenic zone are poorly understood behaviors seismic cycle. Talc, a common metasomatic mineral at interface, is suggested to host but this hypothesis has not been tested in rock record. We investigate actinolite microstructures from talc-bearing talc-free rocks exhumed depths modern ETS (Pimu'nga/Santa Catalina Island, California...

peritoneal adhesions are challenging in abdominal surgery. in spite of different kinds of treatments still no definitive and effective treatment is suggested. to determine the prevention effects of intraperitoneal (ip) methylene blue in post surgical adhesion formation 44 rabbits were randomly divided in two groups of equal number. group i received an intra peritoneal injection of a 1% suspensi...

The aim of our study was to investigate whether interleukin (IL)-8 activates systemic coagulation after talc pleurodesis in malignant pleural effusion (MPE), and whether levels of IL-8 in plasma are related to early death after talc pleurodesis. IL-8 and tumour necrosis factor (TNF)-alpha were measured in samples from 231 MPE patients before and after talc pleurodesis. Whole blood from 31 healt...

OBJECTIVE To assess the role of video-assisted thoracoscopic surgery (VATS) in the management of a recurrent primary spontaneous pneumothorax after a prior talc pleurodesis. METHODS From 1996 to 2002, we retrospectively reviewed all patients who were treated for a recurrent primary spontaneous pneumothorax after a previous talc pleurodesis. Data on the talc procedure and the recurrent pneumot...