Immune reconstitution inflammatory syndrome (IRIS) is a paradox o

Immune reconstitution inflammatory syndrome (IRIS) is a paradox of clinical worsening of opportunistic infections in the context of response to HAART and immunological recovery. Here we present a case of oral IRIS-related Kaposi sarcoma (KS) that appeared in an advanced HIV-1-infected patient introduced to HAART and was treated by surgical removal and antiretroviral

therapy. p38 MAPK assay (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2009; 108: 70-75)”
“The production of smoke, carbon monoxide (CO), and carbon dioxide (CO(2)) were investigated with cone calorimetry testing when low-density polyethylene (LDPE), LDPE treated with an intumescent flame retardant

(IFR), and LDPE treated with an IFR and ultrafine zinc borate (UZB) combusted under irradiation. The results of the testing showed that UZB could depress smoke production and reduce the amount of CO and CO(2). The components of the pyrolytic gas and its contents were identified and measured with pyrolysis gas see more chromatography/mass spectrometry (Py-GC-MS) when LDPE, LDPE/IFR, and LDPE/IFR/UZB were pyrolyzed at 400 degrees C for 20 s. The Py-GC-MS results implied that UZB had an important influence on the components and contents of the pyrolytic gas of LDPE/IFR. UZB mechanisms of smoke suppression and toxicity reduction with respect to LDPE/IFR are proposed. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 117: 443-449, 2010″
“We showed how intermetallic formation reactions can be studied under rapid heating (10(6)-10(7) K s(-1)) using x-ray microdiffraction with temporal resolution on microsecond time scales. Rapid heating was achieved by initiating an exothermic reaction in multilayer foils comprising alternating check details nanoscale layers of elemental metals. The reaction occurred in a front similar to 100 mu m wide which propagated

across the foil at similar to 1-10 m s(-1). By using synchrotron x-rays focused to a small spot (60 mu m diameter) and a fast pixel-array detector, we were able to track the evolution of phases in the reaction front during the initial heating transient, which occurred in approximately 1 ms, through cooling over a period of hundreds of milliseconds. In Al/Ni multilayer foils, the first phases to form were an Al-rich liquid and the cubic intermetallic AlNi (which likely formed by nucleation from the liquid). In foils of overall composition AlNi, this is the stable intermetallic and the only phase to form. In foils of composition Al(3)Ni(2), during cooling we observed a peritectic reaction between AlNi and the remaining liquid to form Al(3)Ni(2), which is the stable phase at room temperature and the final product of the reaction.

Comments are closed.