Spin asymmetry A_1^d and the spin-dependent structure function g_1^d of the deuteron at low values of x and Q^2

We present a precise measurement of the deuteron longitudinal spin asymmetry A_1^d and of the deuteron spin-dependent structure function g_1^d at Q^2 < 1 GeV^2 and 4*10^-5 < x < 2.5*10^-2 based on the data collected by the COMPASS experiment at CERN during the years 2002 and 2003. The statistical precision is tenfold better than that of the previous measurement in this region. The measured A_1^d and g_1^d are found to be consistent with zero in the whole range of x.Comment: 17 pages, 10 figure

Gluon polarization in the nucleon from quasi-real photoproduction of high-pT hadron pairs

We present a determination of the gluon polarization Delta G/G in the nucleon, based on the helicity asymmetry of quasi-real photoproduction events, Q^2<1(GeV/c)^2, with a pair of large transverse-momentum hadrons in the final state. The data were obtained by the COMPASS experiment at CERN using a 160 GeV polarized muon beam scattered on a polarized 6-LiD target. The helicity asymmetry for the selected events is = 0.002 +- 0.019(stat.) +- 0.003(syst.). From this value, we obtain in a leading-order QCD analysis Delta G/G=0.024 +- 0.089(stat.) +- 0.057(syst.) at x_g = 0.095 and mu^2 =~ 3 (GeV}/c)^2.Comment: 10 pages, 3 figure

Measurement of the Spin Structure of the Deuteron in the DIS Region

We present a new measurement of the longitudinal spin asymmetry A_1^d and the spin-dependent structure function g_1^d of the deuteron in the range 1 GeV^2 < Q^2 < 100 GeV^2 and 0.004< x <0.7. The data were obtained by the COMPASS experiment at CERN using a 160 GeV polarised muon beam and a large polarised 6-LiD target. The results are in agreement with those from previous experiments and improve considerably the statistical accuracy in the region 0.004 < x < 0.03.Comment: 10 pages, 6 figures, subm. to PLB, revised: author list, Fig. 4, details adde

The COMPASS Experiment at CERN

The COMPASS experiment makes use of the CERN SPS high-intensitymuon and hadron beams for the investigation of the nucleon spin structure and the spectroscopy of hadrons. One or more outgoing particles are detected in coincidence with the incoming muon or hadron. A large polarized target inside a superconducting solenoid is used for the measurements with the muon beam. Outgoing particles are detected by a two-stage, large angle and large momentum range spectrometer. The setup is built using several types of tracking detectors, according to the expected incident rate, required space resolution and the solid angle to be covered. Particle identification is achieved using a RICH counter and both hadron and electromagnetic calorimeters. The setup has been successfully operated from 2002 onwards using a muon beam. Data with a hadron beam were also collected in 2004. This article describes the main features and performances of the spectrometer in 2004; a short summary of the 2006 upgrade is also given.Comment: 84 papes, 74 figure

Ecological and technological criteria for comparing the natural intensity of industrial and municipal waste sites with the technological intensity of the environment

A systematic approach based on environmental and technological criteria has been proposed to ensure the achievement of environmental quality standards of the environment at the regional intersectoral level for the management of industrial and municipal waste. A list of indicators and criteria has been formed for comparing the accumulating capacity of a given natural system without serious violations of its structural and functional characteristics on the one hand. On the other hand, there is production potential and production capacity for natural resources for individual enterprises and a diversified industrial complex. An algorithm for comparing production and natural potentials on the basis of a geographic information basis on the scale of a territorial natural production complex has been developed and the structure of a GIS project has been determined. The latter made it possible to interconnect the natural intensity of production (NP), the level of environmental friendliness of production (EFP), the ecological technological capacity of the territory (ETT) using the criteria of commensuration (NDV, VAT, PDRO and NDT)

HAEMOSTASIS SYSTEM DISORDERS IN CYSTIC AND NIDAL LIVER IMPAIRMENT IN CHILDREN AND THEIR PHARMACOTHERAPY OPPORTUNITIES

In the event of a cystic and nidal liver impairment, resulting from the dysfunction of hepatocytes, there are certain haemostasis system disturbances. The article analyzes co agulograms of 75 children with cystic and nidal liver impairment in early school age (aged 6–11 year). The article reviews the diagnostic methods for detecting hemostasis disturbances in case of the given pathology and away to duly and adequately enforce the medication correction of these disorders. This method makes the illness forecast more predictable and manageable.Key words: haemostasis, liver, cystic and nidal liver impairment, children

ADMINISTRATION OF LACTULOSE IN COMPLEX PEHABILITATION TREATMENT AFTER RADICAL AND RECONSTRUCTIVE RESTORATIVE SURGERY OF BOWELS IN CHILDREN

The results of treatment of children (n = 64) of 1,5–17 years old, receiving rehabilitation course after reconstructive — restorative surgery of bowels are presented in this article. It was shown, that prolonged (1 month and more) administration of lactulose (Duphalac) results in improvement of motor and evacuation function of bowel, and decreases «sensor inability» of reduced parts of bowel. As a result, lactulose stimulates functioning of «obturative apparatus of neoampula» (voluntary evacuation, retention of intestinal contents), that favors to increase of quality of life and social rehabilitation of children in outlying post surgical period.Key words: children, post surgical rehabilitation, «idiopathic megacolon»syndrome, Hirschsprung's disease, anorectal malformations,lactulose.(Voprosy sovremennoi pediatrii — Current Pediatrics. 2009;8(2):34-37)</span

LACTULOSE IN PREOPERATIVE PREPARATION OF CHILDREN WITH DECOMPENSATED TYPE OF CHRONIC COLON STASIS

This article describes the results of estimation of effectiveness of lactulose (Dupfalac) in preoperative preparation of children with decompensated type of chronic colon stasis. Proved, that administration of this medication normalizes such indices of homeostasis as acid-base balance of blood and microbiocenose of colon by 7days. Use of lactulose decreases patient complaints on nausea, vomiting, abdominal pain, weakness in 1.6 times rarely then in group of children using other laxative medications in preoperative preparation.Key words: megacolon syndrome, lactulose, dysbacteriosis, blood acid-base balance.(Voprosy sovremennoi pediatrii — Current Pediatrics. 2009;8(1):68-71