Observation Of Very High Energy Cosmic-ray Families In Emulsion Chambers At High Mountain Altitudes (i)

Characteristics of cosmic-ray hadronic interactions in the 1015 - 1017 eV range are studied by observing a total of 429 cosmic-ray families of visible energy greater than 100 TeV found in emulsion chamber experiments at high mountain altitudes, Chacaltaya (5200 m above sea level) and the Pamirs (4300 m above sea level). Extensive comparisons were made with simulated families based on models so far proposed, concentrating on the relation between the observed family flux and the behaviour of high-energy showers in the families, hadronic and electromagnetic components. It is concluded that there must be global change in characteristics of hadronic interactions at around 1016 eV deviating from thise known in the accelerator energy range, specially in the forwardmost angular region of the collision. A detailed study of a new shower phenomenon of small-pT particle emissions, pT being of the order of 10 MeV/c, is carried out and its relation to the origin of huge "halo" phenomena associated with extremely high energy families is discussed as one of the possibilities. General characteristics of such super-families are surveyed. © 1992.3702365431Borisov, (1981) Nucl. Phys., 191 BBaybrina, (1984) Trudy FIAN 154, p. 1. , [in Russian], Nauka, MoscowLattes, Hadronic interactions of high energy cosmic-ray observed by emulsion chambers (1980) Physics Reports, 65, p. 151Hasegawa, ICR-Report-151-87-5 (1987) presented at FNAL CDF Seminar, , Inst. for Cosmic Ray Research, Univ. of TokyoCHACALTAYA Emulsion Chamber Experiment (1971) Progress of Theoretical Physics Supplement, 47, p. 1Yamashita, Ohsawa, Chinellato, (1984) Proc. 3rd Int. Symp. on Cosmic Rays and Particle Physics, p. 30. , Tokyo, 1984, Inst. for Cosmic Ray Research, Univ. of Tokyo(1984) Proc. 3rd Int. Symp. on Cosmic Rays and Particle Physics, p. 1. , Tokyo, 1984Baradzei, (1984) Proc. 3rd Int. Symp. on Cosmic Rays and Particle Physics, p. 136. , Tokyo, 1984Yamashita, (1985) J. Phys. Soc. Jpn., 54, p. 529Bolisov, (1984) Proc. 3rd Int. Symp. on Cosmic rays and Particle Physics, p. 248. , Tokyo, 1984, Inst. for Cosmic Ray Research, Univ. of TokyoTamada, Tomaszewski, (1988) Proc. 5th Int. Symp. on Very High Energy Cosmic-Ray Interactions, p. 324. , Lodz, 1988, Inst. for Cosmic Ray Research, Univ. of Tokyo, PolandHasegawa, (1989) ICR-Report-197-89-14, , Inst. for Cosmic Ray Research, Univ. of TokyoCHACALTAYA Emulsion Chamber Experiment (1971) Progress of Theoretical Physics Supplement, 47, p. 1Okamoto, Shibata, (1987) Nucl. Instrum. Methods, 257 A, p. 155Zhdanov, (1980) FIAN preprint no. 45, , Lebedev Physical Institute, MoscowSemba, Gross Features of Nuclear Interactions around 1015eV through Observation of Gamma Ray Families (1983) Progress of Theoretical Physics Supplement, 76, p. 111Nikolsky, (1975) Izv. Akad. Nauk. USSR Ser. Fis., 39, p. 1160Burner, Energy spectra of cosmic rays above 1 TeV per nucleon (1990) The Astrophysical Journal, 349, p. 25Takahashi, (1990) 6th Int. Symp. on Very High Energy Cosmic-ray Interactions, , Tarbes, FranceRen, (1988) Phys. Rev., 38 D, p. 1404Alner, The UA5 high energy simulation program (1987) Nuclear Physics B, 291 B, p. 445Bozzo, Measurement of the proton-antiproton total and elastic cross sections at the CERN SPS collider (1984) Physics Letters B, 147 B, p. 392Wrotniak, (1985) Proc. 19th Cosmic-Ray Conf. La Jolla, 1985, 6, p. 56. , NASA Conference Publication, Washington, D.CWrotniak, (1985) Proc. 19th Cosmic-Ray Conf. La Jolla, 1985, 6, p. 328. , NASA Conference Publication, Washington, D.CMukhamedshin, (1984) Trudy FIAN, 154, p. 142. , Nauka, Moscow, [in Russian]Dunaevsky, Pluta, Slavatinsky, (1988) Proc. 5th Int. Symp. on Very High Energy Cosmic-Ray Interactions, p. 143. , Lodz, 1988, Inst. of Physics, Univ. of Lodz, PolandKaidalov, Ter-Martirosyan, (1987) Proc. 20th Int. Cosmic-Ray Conf., Moscow, 1987, 5, p. 141. , Nauka, MoscowShabelsky, (1985) preprints LNPI-1113Shabelsky, (1986) preprints LNPI-1224, , Leningrad [in Russian]Hillas, (1979) Proc. 16th Int. Cosmic-Ray Conf., Kyoto, 6, p. 13. , Inst. for Cosmic Ray Research, Univ. of TokyoBorisov, (1987) Phys. Lett., 190 B, p. 226Hasegawa, Tamada, (1990) 6th Int. Symp. on Very High Energy Cosmic-Ray Interactions, , Tarbes, FranceSemba, Gross Features of Nuclear Interactions around 1015eV through Observation of Gamma Ray Families (1983) Progress of Theoretical Physics Supplement, p. 111Ren, (1988) Phys. Rev., 38 D, p. 1404Dynaevsky, Zimin, (1988) Proc. 5th Int. Symp. on Very High Energy Cosmic-Ray Interaction, p. 93. , Lodz, 1988, Inst. of Physics, Univ. of Lodz, PolandDynaevsky, (1990) Proc. 6th Int. Symp. on Very High Energy Cosmic-Ray Interactions, , Tarbes, France(1989) FIAN preprint no. 208, , Lebedev Physical Institute, Moscow(1990) Proc. 21st Int. Cosmic-Ray Conf., Adelaide, 8, p. 259. , Dept. Physics and Mathematical Physics, Univ. of Adelaide, AustraliaHasegawa, (1990) ICR-Report-216-90-9, , Inst. for Cosmic-Ray Research, Univ. of TokyoTamada, (1990) Proc. 21st Int. Cosmic-Ray Conf., Adelaide, 1990, 8. , Dept. Physics and Mathematical Physics, Univ. of Adelaide, AustraliaTamada, (1990) ICR-Report-216-90-9(1981) Proc. 17th Int. Cosmic-Ray Conf., Paris, 5, p. 291(1990) Proc. Int. Cosmic-Ray Conf., Adelaide, 1990, 8, p. 267. , Dept. Physics and Mathematical Physics, Univ. of Adelaide, Australia(1989) Inst. Nucl. Phys. 89-67/144, , preprint, Inst. Nucl. Phys., Moscow State UnivSmilnova, (1988) Proc. 5th Int. Sym. on Very High Energy Cosmic-Ray Interactions, p. 42. , Lodz, 1988, Inst. of Physics, Univ. of Lodz, PolandGoulianos, (1986) Proc. Workshop of Particle Simulation at High Energies, , University of Wisconsin, Madison, USAIvanenko, (1983) Proc. 18th Int. Cosmic-Ray Conf., Bangalore, 1983, 5, p. 274. , Tata Inst. Fundamental Research, Bombay, IndiaIvanenko, (1984) Proc. Int. Symp. on Cosmic-Rays and Particle Physics, p. 101. , Tokyo, 1984, Inst. for Cosmic Ray Research, Univ. of Tokyo(1988) 5th Int. Symp. on Very High Energy Cosmic-Ray Interactions, p. 180. , Lodz, 1988, Inst. of Physics, Univ. of Lodz, Poland(1990) Proc. 21st Int. Cosmic-Ray Conf., Adelaide, 1990, 8, p. 251. , Dept. Physics and Mathematical Physics, Univ. of Adelaide, Australia(1991) Izv. AN USSR No. 4, , to be publishedNikolsky, Shaulov, Cherdyntseva, (1990) FIAN preprint no. 140, , Lebedev Physical Institute, Moscow, [in Russian](1987) Proc. 20th Int. Cosmic-Ray Conf., Moscow, 1987, 5, p. 326. , Nauka, Mosco

Observation Of A High-energy Cosmic-ray Family Caused By A Centauro-type Nuclear Interaction In The Joint Emulsion Chamber Experiment At The Pamirs

An exotic cosmic-ray family event is observed in the large emulsion chamber exposed by the joint at the Pamirs (4360 m above sea level). The family is composed of 120γ-ray-induced showers and 37 hadron-induced showers with individual visible energy exceeding 1 TeV. The decisive feature of the event is the hadron dominance: ΣEγ, ΣE(γ) h, 〈Eγ, 〈E(γ) h〉, 〈Eγ·Rγ〉 and 〈E(γ)·Rh〉 being 298 TeV, 476 TeV, 2.5 TeV, 12.9 TeV, 28.6 GeV m and 173 GeV m, respectively. Most probably the event is due to a Centauro interaction, which occured in the atmosphere at ∼700 m above the chamber. The event will constitute the second beautiful candidate for a Centauro observed at the Pamirs. © 1987.1901-2226233Bayburina, (1981) Nucl. Phys. B, 191, p. 1Lattes, Fujimoto, Hasegawa, Hadronic interactions of high energy cosmic-ray observed by emulsion chambers (1980) Physics Reports, 65, p. 151(1984) Trudy FIAN, 154, p. 1Borisov, (1984) Proc. Intern. Symp. on Cosmic rays and particle physics, p. 3. , TokyoRen, (1985) 19th Intern. Cosmic ray Conf., 6, p. 317. , La JollaYamashita, (1985) 19th Intern. Cosmic ray Conf., 6, p. 364. , La JollaTamada, (1977) Nuovo Cimento, 41 B, p. 245T. Shibata et al., to be publishedHillas, (1979) 16th Intern. Cosmic ray Conf., 6, p. 13. , KyotoBattiston, Measurement of the proton-antiproton elastic and total cross section at a centre-of-mass energy of 540 GeV (1982) Physics Letters B, 117, p. 126UA5 Collab., G.J. Alner et al., preprint CERN-EP/85-62Taylor, (1976) Phys. Rev. D, 14, p. 1217Burnett, (1984) Proc. Intern. Symp. on Cosmic rays and particle physics, p. 468. , Toky

АНАЛИЗ ТЕНДЕНЦИЙ ПСИХОЛОГИЧЕСКИХ СТРАТЕГИЙ СЕТЕВОЙ АКТИВНОСТИ СТУДЕНТОВ

This article is devoted to the analysis of trends in psychological strategies of network behavior at the student age. The article discusses the strategies of activity, attitudes towards the Internet, and self-presentation in Internet communication among students.Данная статья посвящена анализу тенденций психологических стратегий сетевого поведения в студенческом возрасте. В статье рассматриваются стратегии активности, установки по отношению к Интернету и самопрезентация в Интернет-общении у студенческой молодежи

БАЗИСНЫЕ УБЕЖДЕНИЯ СТУДЕНТОВ В СЕТЕВОМ ПОВЕДЕНИИ

The article deals with such concepts as "basic beliefs" and "strategies of network activity". The authors present some results of empirical research of students ' basic beliefs in the conditions of virtual communication, reflecting the specifics of the relationship between the preferences of network behavior strategies with different basic beliefs.В статье рассматриваются такие понятия, как «базисные убеждения» и «стратегии сетевой активности». В работе авторами представлены отдельные результаты эмпирического исследования базисных убеждений студентов в условиях виртуальной коммуникации, отражающие специфику взаимосвязи предпочтения стратегий сетевого поведения с разными базисными убеждениями

Взаимосвязь массовой культуры и индустрии видеоигр: политико-философский аспект

Как элемент массовой культуры видеоигры пользуются большим успехом, ими интересуются разные слои населения. Они взаимодействуют с большим количеством людей, что делает их важным объектом изучения политологическим сообществом. Их потенциал малоизучен в контексте массовой культуры

NIMANN-PICK TYPE C DISEASE. CLINICAL CASE STUDIES

Nimann-Pick Type C Disease is a hereditary progressive disease of the nervous system from the group of lysosomal accumulation diseases resulting from abnormal subcellular lipid distribution, which leads to the accumulation of cholesterol and glycosphingolipid in the brain and other body tissues. Clinical presentation of the disease is varied and manifested as progressive cerebellar, cognitive disorders, vertical ophthalmoparesis, frequently combined with disorders of the liver, spleen and lungs. This article outlines the key mechanisms of Nimann-Pick type C disease pathogenesis, leading clinical presentations depending on the time the disease manifested it self and key therapy approaches. We described two cases of this disease registered in Russia. It provides a comparative clinical analysis with already published data. To date, a pathogenetic treatment course has been developed for this disease, a timely detection of this pathology is, therefore, important to the burdened family. This representative article on modern data on diagnostics and treatment of NPC is intended for neurologists, pediatricians, psychiatrists and geneticists. Key words: neurodegenerative disease, Nimann-Pick type C disease, convulsions, ataxia, vertical ophthalmoparesis, loss of acquired skills. (Pediatric Pharmacology. – 2010; 7(5):48-53

СРАВНИТЕЛЬНОЕ ИЗУЧЕНИЕ ФАРМАКОКИНЕТИКИ ОФЛОКСАЦИНА В СВОБОДНОЙ И НИОСОМАЛЬНОЙ ФОРМЕ В ЭКСПЕРИМЕНТЕ НА БЕЛЫХ МЫШАХ ПРИ ВВЕДЕНИИ Per Os

Aim: to study features of pharmacokinetics of ofloxacin as a part of anion PEGylated niosomes on a basis of sorbitan monostearate (Span 60) to experimental white mice per os. Materials and methods: ofloxacin was entrapped in niosomes consisting of Span 60, cholesterol, PEG 4000 and dicetylphosphate. Sizes of niosomes estimated by means of probe microscopy. Efficiency of inclusion of an antibiotic in niosomes defined after removal of free drug by a centrifugation. The analysis of the quantitative contents of ofloxacin in samples carried out a method of a high performance liquid chromatography. Results: we studied the main pharmacokinetic parameters of ofloxacin when used free and niosomal forms of antibiotic to experimental white mice per os. It is shown that use of oral niosomal forms leads to decrease of maximal concentration in serum and increase of ofloxacin half-life by 7,4 times in average compared to the free form. It is determined that bioavailability of ofloxacin in the niosomal form is 154% relative to the free form of the antibiotic. Conclusions: niosomal microcontainers are perspective technology of encapsulation and the directed transport of antibacterial preparations through biological barriers. Using of niosomal formulation of ofloxacin is able to afford to increase considerably efficiency of treatment in comparison with a free form and significantly decrease negative effects of antibiotic therapy.Цель исследования: изучить особенности фармакокинетики офлоксацина в составе анионных ПЭГ-содержащих ниосом на основе сорби-тана моностеарата (Span 60) при пероральном введении экспериментальным белым мышам. Материалы и методы: офлоксацин включали в ниосомы, состоящие из Span 60 холестерина, ПЭГ 4000 и дицетилфосфата. Размеры ниосом оценивали с помощью зондовой микроскопии. Эффективность включения антибиотика в ниосомы определяли после удаления свободного действующего вещества путем центрифугиро-вания. Анализ количественного содержания офлоксацина в образцах осуществляли методом высокоэффективной жидкостной хроматогра-фии. Результаты: изучены основные фармакокинетические параметры офлоксацина при введении экспериментальным белым мышам per os свободной и ниосомальной формы антибиотика. Показано, что при пероральном введении ниосомальной формы наблюдается снижение максимальной концентрации в сыворотке крови и увеличение времени полувыведения офлоксацина в среднем в 7,4 раза по сравнению со свободной формой. Установлено, что биодоступность офлоксацина в ниосомальной форме составляет 154% относительно свободной формы антибиотика. Выводы: ниосомальные микроконтейнеры являются перспективной технологией инкапсулирования и направленного транспорта антибактериальных препаратов через биологические барьеры. Использование ниосомальной формы офлоксацина может позво-лить значительно повысить эффективность лечения по сравнению со свободной формой, а также способствовать значительному снижению проявления негативных эффектов при антибиотикотерапии.

NIMANN-PICK TYPE C DISEASE. CLINICAL CASE STUDIES

Nimann-Pick Type C Disease is a hereditary progressive disease of the nervous system from the group of lysosomal accumulation diseases resulting from abnormal subcellular lipid distribution, which leads to the accumulation of cholesterol and glycosphingolipid in the brain and other body tissues. Clinical presentation of the disease is varied and manifested as progressive cerebellar, cognitive disorders, vertical ophthalmoparesis, frequently combined with disorders of the liver, spleen and lungs. This article outlines the key mechanisms of Nimann-Pick type C disease pathogenesis, leading clinical presentations depending on the time the disease manifested it self and key therapy approaches. We described two cases of this disease registered in Russia. It provides a comparative clinical analysis with already published data. To date, a pathogenetic treatment course has been developed for this disease, a timely detection of this pathology is, therefore, important to the burdened family. This representative article on modern data on diagnostics and treatment of NPC is intended for neurologists, pediatricians, psychiatrists and geneticists. Key words: neurodegenerative disease, Nimann-Pick type C disease, convulsions, ataxia, vertical ophthalmoparesis, loss of acquired skills. (Pediatric Pharmacology. – 2010; 7(5):48-53