background: the aim of this study is to create an ex vivo model to examine the expression of two heat shock protein 70 (hsp70) family members, heat shock protein 72 (hsp72) and heat shock constitute protein 70 (hsc70), at the mrna and protein levels in differentiating corneal cells from air exposed limbal stem cells. materials and methods: limbal biopsies were cultured as explants on a cellular...

In this paper, we explore the emergence and direct interaction of two different types of dissipative structure in a single system: self-replicating chemical spot patterns and buoyancyinduced convection rolls. A new Lattice Boltzmann Model is developed, capable of simulating fluid flow, heat transport, and thermal chemical reactions, all within a simple, efficient framework. We report on a first...

the ionic liquid li(ohch2ch2nh2)(cf3oac) was found to efficiently catalyze the three-component reaction between different enols, aldehydes, and malononitrile , leading to rapid synthesis of 2-amino-4h-chromene derivatives in fairly high yields. the catalyst is easily prepared, highly stable, simple to handle and recycled for several times without significant loss of activity. the method is simp...

aceae), has been heat-processed to improve its medicinal efficacies in Korea based on the long history of ethnopharmacological evidence. Although the increasing body of evidence supports that Maillard reaction products (MRPs) are implicated in the increased activity by heat treatment in various crude drugs or foods, the effect of Maillard reaction on the active components of ginseng and biologi...

This two-part study explores the development and thermal performance of a coiled-tube heat exchanger for hydrogen fuel cell storage systems utilizing High-Pressure Metal Hydride (HPMH). The primary purpose of this heat exchanger is to tackle the large amounts of heat released from the exothermic hydriding reaction that occurs when the hydrogen is charged into the storage vessel and is absorbed ...

The aim of this study was to determine the occurrence of enterotoxigenic and enteroaggregative Escherichia coli strains and antibiotic resistance of the isolates in raw milk and unpasteurized cheese. Out of 200 samples of raw milk and 50 samples of unpasteurized cheeses, 96 and 24 strains of E. coli were isolated, respectively. Polymerase chain reaction (PCR) was used to detec...

The weldability of GTD-111 nickel-based superalloy by pulsed Nd:YAG laser welding with an average power of 250 W was studied, and the microstructural evolution and cracking characteristics were also investigated. The solidification cracking of the fusion zone (FZ) and the intergranular liquation cracking in the heat affected zone (HAZ) were observed in the joint. Solidification cracking was cau...

Traditionally, heat damage in forages has been associated primarily with alterations in forage protein quality as a result of Maillard reactions. A Maillard reaction is a heat-induced chemical reaction between protein (amino acids) and sugars. Maillard products produce a range of odors and colors in forages, but generally are poorly characterized nutrients in ruminant nutrition. Terms such as h...