Generalized Langevin equation with shear flow and its fluctuation-dissipation theorems derived from a Caldeira-Leggett Hamiltonian.

We provide a first-principles derivation of the Langevin equation with shear flow and its corresponding fluctuation-dissipation theorems. Shear flow of simple fluids has been widely investigated by numerical simulations. Most studies postulate a Markovian Langevin equation with a simple shear drag term in the manner of Stokes.

Tuberculosis in sheltered homeless population of Rome: an integrated model of recruitment for risk management.

The authors show the results of an integrated model for risk management of tuberculosis in a sample of sheltered homeless in Rome. Tuberculin skin test (TST) was used for evaluating the prevalence of latent infection (LTBI). In TST positives, expectorate was collected and chest X-ray was achieved.

[Pericarditis caused by Gemella morbillorum. Description of a case].

Pericardial diseases, in the pediatric age group are rare, and are usually due to viral infection or collagen diseases. Since the advent of the antibiotic era, bacterial pericardial has rarely been reported, and the bacteria most commonly involved are Staphylococcus aureus, Streptococcus pneumoniae, Haemophylus influenzae and Neisseria meningitidis; other pyogenic agents have rarely been isolated in pericarditis. Gemella morbillorum, also known as Streptococcus morbillorum, is a Gram-positive pyogen, usually a saprophite agent of the human gastrointestinal tract, rarely associated with human infections such as arthritis, endocarditis and meningitidis; to our knowledge, it has never been isolated in pericarditis.

[Correlations between blood pressure values, familial hypertension and anthropometric parameters in a sample of 3-year-old children].

Nowadays evaluation of blood pressure in children is almost routine. In fact hypertension in adults may be preceded by high blood pressure values in childhood. In this study the authors examined systolic blood pressure (SBP) and diastolic blood pressure (DBP), height, weight, ponderosity index and family history of hypertension, in 261 3-year-old children, 139 boys and 122 girls.

[Evaluation of renal function in congenital cardiopathies in young children].

The authors evaluated some renal functional parameters of 23 children, the ages ranged 1 to 58 weeks; 8 were affected with cyanotic congenital heart disease and 15 with acyanotic forms. They showed the presence, already in this age, of some affections that are quiet similar to those affecting older children with heart disease. They tried to explain the renal functional deficiency in consideration of the literature data also.

[Beta-thromboglobulin and platelet regeneration time in children with mitral valve prolapse].

We studied 12 children with echocardiographic evidence of mitral valve prolapse (MVP) in order to demonstrate platelet activation or consumption as risk for thromboembolism. Therefore, with a standard radioimmunoassay, we measured the plasma levels of Beta-thromboglobulin (BTG), a platelet-specific protein released during platelet release reaction. Platelet turn-over was evaluated by measuring the Platelet Regeneration Time (PRT) with a non-radioisotopic method.

Successful triple coronary artery bypass in a child with multiple coronary aneurysms due to Kawasaki's disease.

A 9-year-old girl developed ischemic cardiac symptoms 3 years after she first presented with characteristic manifestations of Kawasaki's disease, namely, high fever, conjunctivitis, lymphadenopathy, macular truncal skin rash, and erythema of both hands followed by desequamation of the skin of the fingertips. This acute illness resolved spontaneously within 2 weeks. Because of progressive and severe anginal symptoms and electrocardiographic signs of myocardial ischemia, she underwent cardiac catheterization and coronary angiography, which demonstrated multiple aneurysms of both right and left coronary artery systems.

[The single ventricle: plain film and contrastographic radiologic findings (author's transl)].

The radiologic findings on the plain film are investigated in a series of 9 patients with single ventricle. In 3 of them the cardioangiographic patterns are described. The possible association of malformations is stressed.

[Cardiac electrostimulation in childhood (author's transl)].

The AA. relate on two cases of pacemaker implantation in childhood, and they outline the causes that make necessary a cardiac pacemaker in such an age and the troubles can possibly occur.