Gastrointestinal damage is generated by a wide range of harmful agents, and the result activation inflammatory, oxidant cytotoxic mechanisms, that together overwhelm “mucosa defense” gastrointestinal (GI) tract. It currently known mechanisms which gastric are slightly different from those generate intestinal damage. The treatments available on market such as citoprotectors, use selective Cicloo...

The epidermis of the aerial part of land plants is pierced by pores through which plants perform gas exchange with environment. The guard cells (GCs), the specialized cells that surround the pore, have the capacity to sense diverse environmental and endogenous stimuli and integrate them into a single output which is the regulation of the stomatal pore width. The stomatal pore size is modulated ...

Some years ago?in 1900?Dr. Robert Macguire of the Brompton Consumption Hospital described in a Harveian lecture certain experiments which he had made for the purpose of introducing germicides into the lungs through the venous system, with a view to the destruction of the tubercle bacillus. Previously various trials had been made of various agencies employed in various ways to this end. ''Consum...

We report progress in developing a novel antimatter detection scheme. The gaseous antiparticle spectrometer (GAPS) identifies antimatter through the characteristic X-rays emitted by antimatter when it forms exotic atoms in gases. The approach provides large area and field of view, and excellent background rejection capability. If the GAPS concept is successfully demonstrated, then it would be a...

We generalize the models of visibly pushdown automata (VPDAs) and visibly pushdown transducers (VPDTs) by equipping them with reversal-bounded counters. We show that some of the results for VPDAs and VPDTs (e.g., closure under intersection and decidability of emptiness for VPDA languages) carry over to the generalized models, but other results (e.g., determinization and closure under complement...

Hydrogen Sulfide (H2S) is one of three gasotransmitters that modulate excitability in the CNS. Global application of H2S donors or inhibitors of H2S synthesis to the respiratory network has suggested that inspiratory rhythm is modulated by exogenous and endogenous H2S. However, effects have been variable, which may reflect that the RTN/pFRG (retrotrapezoid nucleus, parafacial respiratory group)...

Many scientific papers have been written concerning gas sensors for different sensor applications using several sensing principles. This review focuses on sensors and sensor systems for gaseous ammonia. Apart from its natural origin, there are many sources of ammonia, like the chemical industry or intensive life-stock. The survey that we present here treats different application areas for ammon...

Heliopsis longipes roots have been widely used in Mexican traditional medicine to relieve pain, mainly, toothaches. Previous studies have shown that affinin, the major alkamide of these roots, induces potent antinociceptive and anti-inflammatory activities. However, the effect of H. longipes root extracts and affinin on the cardiovascular system have not been investigated so far. In the present...