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Directly measured data on the total cross section for the reaction of projectile 4He ions with silicon nuclei at energies below 25 MeV/nucleon are presented. The energy dependence of the parameters of a semimicroscopic potential is determined from the measured values of this cross section. This investigation was performed at the Flerov Laboratory of Nuclear Reactions at the Joint Institute for Nuclear Research (Dubna, Russia) and at the Department of Physics at the University of Jyväskylä (Finland).© 2005 Pleiades Publishing, Inc. [ABSTRACT FROM AUTHOR]

New results on the energy dependence of the total cross section (σ[sub R]) for [sup 6]He scattering on [sup 28]Si in the incident energy range 10-28 MeV/A are obtained. The α-particle-production cross sections for the [sup 28]Si([sup 6]He, [sup 4]He)X channel are measured as well. The secondary beam of [sup 6]He with an intensity of up to 5 x 10[sup 4] particle/s was generated by bombarding a thick beryllium target with ∼32-MeV/A [sup 7]Li ions. In the energy region below 17 MeV/A, σ[sub R] increases sharply. The experimental dependences of the total cross sections are compared with the results of σ[sub R] calculations using the double-folding potential within the optical model. The energy dependence of σ[sub R] for [sup 6]He differs from that for the neighboring nuclei, which can be associated with the structural features of the former nucleus. The energy spectra of α particles produced in the [sup 6]He interactions with silicon indicate two mechanisms of their production: transfer reaction and [sup 6]He breakup in the field of the [sup 28]Si nucleus. [ABSTRACT FROM AUTHOR]

The inclusive energy spectra and multiplicities of p, d, and t from the reactions [sup 14]N(Ag, X), X = p, d, t at E/A = 52 MeV are measured. The experimental data are compared with the results obtained within the Dubna version of the cascade model and are analyzed on the basis of the moving-source model. [ABSTRACT FROM AUTHOR]

Knowledge is systemic by its nature. The highest expression of the systematic character of knowledge is to be found in scientific theories. Any scientific theory is a rigorously organized conceptual system, quite complex in structure. What defines the manner in which knowledge is organized in a theory? Is it independent of the nature and structural features of that sphere of the material world for cognition of which the theory was created, or is it conditioned by these features and does it derive from them? Is there a correspondence between the structure of knowledge concentrated in a theory and the structure of that fragment of material reality that is modeled by that theory? Is it possible at all for a theory to be a form of reflection of objective reality, if there is no definite correspondence between its structure and the structure of the region of reality to which it pertains? These questions are of primary importance to the treatment of the theory of scientific knowledge. [ABSTRACT FROM AUTHOR]

The paper analyzes the foreign practice of CALS (Continuous Acquisition and Lifecycle Support) contracts. It offers a conceptual model of controlling the life cycle of products, which is to include the professional training of communication combat unit personnel of navy surface ships (SS). It recommends creating a virtual learning environment for navy specialists when taking up end-to-end lifecycle contracts. The authors conclude that these measures are necessary. [ABSTRACT FROM AUTHOR]

A total of 33 compounds including bicyclic monoterpenes, oxides, allyl alcohols, and S-containing pinane and carane derivatives were screened for antifungal activity against mycelial and yeast-like fungi. The structure–activity relationship was studied. The most active antimycotics were found. [ABSTRACT FROM AUTHOR]

Despite low invasiveness, lacrimal passages, intubation in children requires general anaesthesia to prevent traumatic and neurological complications. General anaesthesia with sevoflurane is optimal for technical simplicity, safety and controllability. Methods of face mask inhalation anesthesia with halothan and sevoflurane were compared in 996 patients. The authors have developed their own standart of performing the face mask inhalation anesthesia with sevoflurane in children during lacrimal passages intubation. This allowed to minimize the number of intra- and postoperative complications in children, to reduce period of postanesthetic observation, to advance the peroral compensation of fluid deficit.

A total of 326 patients were operated on the heart under total and combined epidural anesthesia. Multicomponent total anesthesia in combination with epidural blocking is indicated for patients with coronary disease, aortal and mitral valve failure, arterial and pulmonary hypertension. The dose of fentanyl is decreased 2.98 times, duration of forced ventilation of the lungs 2-fold, and the incidence of cardiovascular and pulmonary complications is reduced in patients subjected to cardiosurgical interventions under total anesthesia in combination with epidural blocking.

The analysis of 36 case records of patients with peritonitis (n = 12) and intestinal obstruction (n = 24) is presented. Nasogastrointestinal intubation of the small bowel was used in combined treatment. The aims, indications and contraindications for the intubation are formulated. Bacteriologic and biochemical parameters of bowel content were studied. It was established that the quantity of enterobacteria and unfermenting gram-negative bacteria was increased in intestinal paresis, the alkaline phosphatase, amylase, bilirubin, transaminase, a potassium content were increased as well. For the tube to function from the first hours after its introduction it should be periodically properly washed with sodium hypochlorite in concentration 300 mg/l.

Some aspects were studied of the occurrence of disseminated sclerosis (DS) in the south of Ukraine (Odessa and Nikolaev Provinces) with special reference to geoclimatic, ecological and ethnic factors over the period 1992-1993, DS incidence was noted to be on the increase in the region, which fact permits classifying the South territories of Ukraine as a zone with moderate DS prevalence. Data are submitted on nonuniformity of distribution of frequency of DS cases on the territory in question. Lineage was traced to the climatic-and-geographic factors of the region, locality one lives in as well as to sex and race.

The paper is concerned with disorders of psychosexual maturity in adolescents (n-70). For that purpose in view a comparative nosological study of the early residual organic psychopathlike conditions (46 cases) and of organic psychopathies (24 cases) formed during the pubertal crisis was done at a forensic psychiatry hospital. According to the data obtained in the majority of the test subjects, there occurred asynchronisms of puberty (80%). Unlike group II (organic psychopathy) where disharmonic puberty was predominant, retarded puberty was recorded most frequently in group I. The main variants of psychosexual maturity were distinguished within the framework of the forms indicated: 2 variants in retardation and 6 variants in disharmonic puberty. Disharmonic puberty, then retarded puberty and pubertas precox were found to be dangerous for the onset of sexual disorders (perversions, deviations). Expert criteria for assessing the depth of sexual disorders were specified in addition. The new data obtained are of importance of both general and forensic psychiatry.