1. Disciplina de Pneumologia, Universidade Federal de São Paulo, São Paulo (SP) Brasil. Tissues obtain energy primarily from oxygen. Adequate oxygen levels in the inhaled air and a preserved ventilation/ perfusion ratio (V • /Q) are the major determinants of oxygen supply to the blood. However, peripheral supply depends on effective oxygen transport to the tissue mitochondria, a critical task t...

Accurate estimations of percentage oxygen saturation and oxygen capacity are frequently needed in research and routine investigation of patients suffering from diseases of the heart and lungs. Blood gas analysis for this purpose is time consuming and requires the services of a highly skilled technician. Further, the methods need to be in constant use if reliable results are to be obtained. Accu...

the effect of massage therapy on the physiologic index of the patiants hospitalized at different intensive care units of shahid beheshti university of medical sciences       zolriasatain f [1] *, bahraini s [2] , hariri gh [3] , khoda karim s [4]     received: 4 dec , 2012 accepted: 18 feb , 2013       abstract:   background & aims : massage therapy is one of the appropriate methods of reducing...

A small population of cancer cells called cancer-initiating cells or cancer stem cells (CSCs) are involved in drug resistance, metastasis, and cancer relapse. Finding pathways that regulate CSC is very important for clinical therapy. ATP-binding cassette sub-family G member 2 (ABCG2) plays a role in side population (SP) cell formation and contributes to chemotherapy resistance in common forms o...

The kinetics of methane hydrate formation in marine sediments with different water saturations are important to assess the feasibility of the hydrate production and understand the process of the secondary hydrate formation in the gas production from hydrate reservoir. In this paper, the behaviors of methane hydrate formation in marine sediments from the South China Sea at different water satura...

OBJECTIVE To investigate the frequency of pulmonary hypertension (PH) and clinical parameters associated with PH in sarcoidosis patients. METHODS A prospective, observational study was performed on 246 consecutive Japanese sarcoidosis patients followed up at the outpatient sarcoidosis clinic in the Central Clinic of Kyoto. The patients were evaluated for PH by Doppler echocardiography. Among ...

the effects of chemical and physical treatments on the storage life of bitter lemons in jiroft, kerman province, were investigated. after harvesting, the lemons were treated by curing, fungicide, waxed paper, shrink wrap or using a combination of these treatments. the samples were stored in standard citrus fruit boxes for three months at 85-90% relative humidity at a temperature of 3°c. once a ...

BACKGROUND One of the measures to keep the airway open is suctioning of endotracheal tube in patients under ventilation. This procedure can be accompanied with some complications. Selection of appropriate method of suctioning can prevent incidence of acute complications. OBJECTIVES This study aimed to compare the effects of the open and closed system suctioning methods on blood pressure, mean...

Brushite (CaHPO(4).2H(2)O) was considered to govern the formation of renal calculus of calcium phosphate origin. The degree of saturation of urine with respect to this phase was therefore calculated. This value was obtained from the ratio of the activity product of Ca(++) and HPO(4) (m) (K(sp)) before and after incubation of urine with brushite. The errors in the calculation of K(sp) were large...