The object of this study was to compare vasorelaxing responses to propofol by the intrapulmonary artery (IPA) and the extrapulmonary artery (EPA), and to identify the mechanisms of action. Rat pulmonary arterial rings were isolated and suspended in organ chambers where isometric tension development was measured under optimal resting tension. All pulmonary arterial rings were pre-contracted with...

An attenuated total reflection (ATR) sensor for water-miscible organic solvents was constructed using a combination of sol-gel processing and integrated optical waveguide (IOW) technologies. The sensor consisted of single-mode, sol-gel based planar waveguide coated with a 40 nm thick, porous sol-gel indicator layer prepared from methyltriethoxysilane and doped with methyl red. The response of t...

background: toxic alcohol poisonings are responsible for high mortality and morbidity in russia. this study was aimed to evaluate the trends of harmful ethanol (etoh) drinking as well as methanol (meoh), isopropanol (ipa) and ethylene glycol (eg) poisonings in the middle urals region of russia. methods: in this retrospective study, the medical records of patients poisoned with meoh, ipa and eg ...

It gives me enormous pleasure to introduce the three papers which have won prizes for being placed first, second and third in the 2007 International Psychogeriatric Association (IPA) Research Awards in Psychogeriatrics. As was the case in 2005, eligible entrant first authors were required to be junior investigators within five years of the award of their terminal degree who were employed at a l...

The authors evaluated the ability of a reverse transcription-polymerase chain reaction (RT-PCR) assay to detect classical swine fever virus (CSFV) in comparison with virus isolation and detection by an indirect immunoperoxidase assay (VI-IPA). To determine the specificity of the assay, samples from 60 spleens, 45 tonsils, ten submandibular lymph nodes, eight mesenteric lymph nodes and four kidn...

We formulate the importance sampling problem as a parametric minimization problem under the original measure and use a combination of infinitesimal perturbation analysis (IPA) and stochastic approximation (SA) to minimize the variance of the price estimation. Compared to existing methods, the IPA estimator derived in this paper has significantly smaller estimation variance and doesn’t depend on...

Chemical modification of wood with isopropenyl acetate (IPA) using iodine (I2) as catalyst has been carried out. Rubber wood (Hevea brasiliensis) specimens were reacted with IPA using iodine (I2) catalyst at 95°C up to 10 h under solvent free conditions. The effect of catalyst concentration and reaction time was studied. The extent of acetylation was measured by determining weight percent gain ...

It has been shown that infinitesimal perturbation analysis (IPA) provides very efficient algorithms for estimating derivatives in a broad class of discrete event dynamic systems (DEDS). But in its simple form, it fails in most multiclass DEDS. In this paper, we propose a revised IPA for a multiclass G/G/1 queue.

conclusions in patients with liver cirrhosis, when there is evidence of severe pulmonary disease without proper response to treatment, the possibility of invasive pulmonary fungal infection should be considered. introduction invasive pulmonary aspergillosis (ipa) is a fatal disease usually occurring in patients with neutropenia resulted from chemotherapy for malignancy. the other risk factors i...

BACKGROUND Pulmonary aspergillosis (PA) is one of the most serious complications in immunocompromised patients, in particular among hematopoietic stem cell transplants (HSCT) and patients with hematological malignancies. OBJECTIVES The current study aimed to evaluate the incidence of PA and utility of molecular methods in HSCT and patients with hematological malignancies, four methods includi...