Abstract: A technique provides protection against unwanted conditions in wellhead structures and other structures. According to the technique, a system provides a feed through in a wellhead structure or other type of structure. The feed through may accommodate a communication line routed therethrough. A closing device is positioned in the structure at a location to enable closing of the feed through via the closing device. Additionally, a condition-sensitive device is operatively engaged with the closing device to initiate actuation of the closing device once the condition-sensitive device is exposed to a predetermined condition. Upon exposure to the predetermined condition, the condition-sensitive device initiates closing of the feed through via the closing device.

Abstract: A family of potent, stable vitamin D-based complexes for therapeutic use in chronic diseases such as cancer, neuro-degenerative diseases, chronic kidney disease and HIV infection is disclosed. They may be made by interaction with de-glycosylated vitamin D-binding protein to form a dimeric complex which can be further stabilized by unsaturated fatty acids to form a trimeric complex which provides improved interaction at cellular level with the vitamin D receptor at the plasma membrane. Effectiveness can be further improved by dissolving or solubilizing the supplement in a suitable solvent. One delivery mechanism for the complexes is to encapsulate them in liposomes, enabling oral administration.

Abstract: A technique provides protection against unwanted conditions in wellhead structures and other structures. According to the technique, a system provides a feed through in a wellhead structure or other type of structure. The feed through may accommodate a communication line routed therethrough. A closing device is positioned in the structure at a location to enable closing of the feed through via the closing device. Additionally, a condition-sensitive device is operatively engaged with the closing device to initiate actuation of the closing device once the condition-sensitive device is exposed to a predetermined condition. Upon exposure to the predetermined condition, the condition-sensitive device initiates closing of the feed through via the closing device.