Abstract: Methods including generating heat and/or gas in subterranean operations, pipelines, and other related applications. In some embodiments, the methods include providing treatment composition including a carrier fluid, a catalyst, a first reactant, a second reactant, a solvent, an emulsifier, and a foaming agent, wherein the first and second reactants are capable of reacting in an exothermic chemical reaction; and introducing the treatment composition into at least a portion of a conduit or container having a temperature of less than 30° C.

Abstract: Methods including generating heat and/or gas in subterranean operations, pipelines, and other related applications. In some embodiments, the methods include providing treatment composition including a carrier fluid, a catalyst, a first reactant, a second reactant, a solvent, an emulsifier, and a foaming agent, wherein the first and second reactants are capable of reacting in an exothermic chemical reaction; and introducing the treatment composition into at least a portion of a conduit or container having a temperature of less than 30° C.

Abstract: Contemplated methods and devices comprise detecting the presence of a pathogen in a biological host. In certain implementations, a sample is provided from a biological host. A biosensor is provided, the biosensor having a first probe configured to detect a control marker in the sample, the control marker being an endogenous element of the biological host. The biosensor has a second probe configured to detect the presence of a target marker in the sample, the target marker being from a pathogen in the biological host. The sample is applied to the biosensor, and the presence or absence of the control marker in the sample is identified using the first probe. The presence or absence of the target marker in the sample is identified using the second probe.

Abstract: A seat belt retractor has a rotatable spool mounted in a frame, a primary locking mechanism for arresting rotation of the spool and a load absorbing mechanism arranged to come into effect at a predetermined load for absorbing a portion of the spool locking load. The load absorbing mechanism may be a section of an inwardly facing peripheral edge of the frame having a serrated or roughened texture and which is positioned and adapted so that above a predetermined load it co-operates with a smooth surfaced spool bearing face to absorb some of the load. Spool rotation is prevented on engagement of the primary locking mechanism and the load on the primary mechanism rises causing the frame side walls to deform and the serrated or roughened section is pushed closer to, and eventually against the spool bearing face, roughening the smooth surface and increasing its coefficient of friction to absorb some of the load and resist rotation of the spool.

Abstract: A seat belt retractor has a rotatable spool mounted in a frame, a primary locking mechanism for arresting rotation of the spool and a load absorbing mechanism arranged to come into effect at a predetermined load for absorbing a portion of the spool locking load. The load absorbing mechanism may be a section of an inwardly facing peripheral edge of the frame having a serrated or roughened texture and which is positioned and adapted so that above a predetermined load it co-operates with a smooth surfaced spool bearing face to absorb some of the load. Spool rotation is prevented on engagement of the primary locking mechanism and the load on the primary mechanism rises causing the frame side walls to deform and the serrated or roughened section is pushed closer to, and eventually against the spool bearing face, roughening the smooth surface and increasing its coefficient of friction to absorb some of the load and resist rotation of the spool.