Lithogeognosie ou Examen chymique des pierres et des terres en général, et du talc, de la topaze & de la steatite en particulier, avec une dissertation sur le feu & sur la lumiere /

Mode of access: Internet.

Proceedings of the Symposium on Talc, Washington, D.C., May 8, 1973 /

Bibliography: 100-102.

The mineral industry of the British Empire and foreign countries. Statistics, 1919-1921. Talc.

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1920-1922. Talc.

At head of title: Imperial Mineral Resources Bureau.

Lithogéognosie, ou, Examen chymique des pierres et des terres en général : et du talc, de la topaze & de la stéatite en particulier : avec une dissertation sur le feu & sur la lumiere /

Corrections: v. 1, p. 424-431; fautes à corriger: v. 2, p. [272].

Talc deposits of steatite grade, Inyo County, California. Prepared in cooperation with the U.S. Geological Survey.

Mode of access: Internet.

A relevante potencialidade dos centros básicos nitrogenados disponíveis em polímeros inorgânicos e biopolímeros na remoção catiônica

This review reports the application of inorganic and organic polymeric materials for cation removal by using nitrogenated basic centers. The data demonstrate the importance of the desired groups when free or immobilized on natural or synthesized inorganic polymers through silanol groups. Thus, the most studied silica gel is followed by natural crysotile and talc polymers, and the synthesized mesopore silicas, talc-like, silicic acids, phosphates and phyllosilicates. The organic natural biopolymeric chitin and cellulose were chemically modified to improve the availability of the amine groups or the reactivity with desirable molecules to enlarge the content of basic centers. The cation removal takes place at the solid/liquid interface and some interactive effects have their thermodynamic data determined.

Efficacy and safety of iodopovidone pleurodesis in malignant pleural effusions

Background and objective: Pleurodesis is one of the best methods of controlling malignant pleural effusions (MPE), a distressing complication of metastatic disease. In recent studies of a wide range of pleural diseases, iodopovidone was used as a sclerosing agent for pleurodesis and demonstrated good results with low morbidity. The aim of this study was to evaluate the efficacy and safety of iodopovidone pleurodesis in MPE. Methods: A retrospective analysis was performed on patients with MPE who underwent pleurodesis at our institution between 2005 and 2008. All patients underwent instillation of 20 mL of 10% iodopovidone, 80 mL of normal saline and 2 mg/kg of lidocaine through a chest tube, which was clamped for 2 h. The tube was removed when the daily output of fluid was < 200 mL. Data on the requirement for additional pleural procedures, adverse events and survival were collected. Results: Sixty-one pleurodesis procedures were performed in 54 patients. No procedure-related mortality was observed. Adverse events occurred after 11 (18%) pleurodesis procedures. The most frequent complication was mild thoracic pain that occurred immediately after 10 (16.4%) procedures, and one patient developed pleural empyema that was treated with drainage and antibiotics. A success rate of 98.4% was observed. Except for the patient who developed pleural empyema, none of the other patients had recurrences of pleural fluid or required additional pleural procedures during the follow-up period (mean of 5.6 months). Conclusions: Iodopovidone pleurodesis was successful and was associated with only a few minor complications. It appears to be a good option for the management of recurrent MPE.