32 research outputs found
Was the GLE on May 17, 2012 linked with the M5.1-class flare the first in the 24th solar cycle?
On May 17, 2012 an M5.1-class flare exploded from the sun. An O-type coronal
mass ejection (CME) was also associated with this flare. There was an instant
increase in proton flux with peak at MeV, leading to S2 solar
radiation storm level. In about 20 minutes after the X-ray emission, the solar
particles reached the Earth.It was the source of the first (since December
2006) ground level enhancement (GLE) of the current solar cycle 24. The GLE was
detected by neutron monitors (NM) and other ground based detectors. Here we
present an observation by the Tupi muon telescopes (Niteroi, Brazil, , , 3 m above sea level) of the enhancement of muons at ground
level associated with this M5.1-class solar flare. The Tupi telescopes
registered a muon excess over background in the 5-min binning time
profile. The Tupi signal is studied in correlation with data obtained by
space-borne detectors (GOES, ACE), ground based neutron monitors (Oulu) and air
shower detectors (the IceTop surface component of the IceCube neutrino
observatory). We also report the observation of the muon signal possibly
associated with the CME/sheath striking the Earth magnetosphere on May 20,
2012. We show that the observed temporal correlation of the muon excess
observed by the Tupi muon telescopes with solar transient events suggests a
real physical connection between them. Our observation indicates that
combination of two factors, the low energy threshold of the Tupi muon
telescopes and the location of the Tupi experiment in the South Atlantic
Anomaly region, can be favorable in the study and detection of the solar
transient events. Our experiment provides new data complementary to other
techniques (space and ground based) in the study of solar physics.Comment: 9 pages, 10 figure
Estimating the inelasticity with the information theory approach
Using the information theory approach, in both its extensive and nonextensive
versions, we estimate the inelasticity parameter of hadronic reactions
together with its distribution and energy dependence from and
data. We find that the inelasticity remains essentially constant in energy
except for a variation around , as was originally expected.Comment: 14 pages, 8 figures. Misprints correcte
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. 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Cosmic-Ray Conf., Moscow, 1987, 5, p. 326. , Nauka, Mosco
Возможности фармакологического лечения остеоартрита: фокус на симптоматические медленно действующие препараты (SYSADOA) и индивидуальные особенности пациента. Резолюция международного совещания экспертов
The paper presents the results of the Osteoarthritis (OA) Expert Council held on September 8, 2019, which was attended by Russian and foreign specialists. The experts considered pharmacological treatment options for OA. The expert meeting resolution states that the treatment of patients with OA should be based on an individual assessment of the patient and on a modern evidence base of therapy efficacy.Treatment of patients with OA is based on the principles of evidence-based medicine that requires an integrated approach and the need of SYSADOAs prescription. Combined drugs with therapeutic dosages of chondroitin sulfate and glucosamine in the early stages of the disease are available as basic agents. The place of paracetamol in the anesthetic therapy algorithm in OA needs to be clarified. It is also noted that when choosing nonsteroidal anti-inflammatory drugs for OA treatment, it is important to take into account individual patient characteristics and the presence of comorbidities.Представлены результаты Экспертного совета по остеоартриту (ОА), проходившего 8 сентября 2019 г., в котором приняли участие российские и зарубежные специалисты. Рассматривались возможности фармакологического лечения ОА. В резолюции совещания указано, что лечение больных ОА должно быть основано на индивидуальной оценке состояния пациента и современных доказательствах эффективности терапии. Лечение больных ОА на основании принципов доказательной медицины предполагает комплексный подход и назначение SYSADOA. Комбинированные препараты с терапевтическими дозами хондроитина сульфата и глюкозамина уже на ранних стадиях заболевания рассматриваются в качестве базисных средств. Место парацетамола в алгоритме обезболивающей терапии при ОА требует уточнения. Отмечено также, что при выборе нестероидных противовоспалительных препаратов для лечения ОА важно учитывать индивидуальные особенности пациента и наличие коморбидных состояний
Review on monograph «Urgent surgery of craniocerebral injuri» by V.V. Lebedev, N.V. Lebedev
PREVENTION OF VENOUS THROMBOEMBOLIC COMPLICATIONS IN TRAUMAS OF LOCOMOTOR SYSTEM
Therapy of patients with disturbances of the locomotor system requires use of drugs to prevent venous thromboembolic complications. In addition to non-drug measures low-molecular heparins are the drugs of choice among coagulants at conservative therapy of traumas and in the post- operative period. The second generation low-molecular heparin – bemirin sodium – demonstrates high effectiveness and safety and might be applied by patients with medium and high degree of development of venous thromboembolic complications (VTEC)
Method for early diagnosis of damage to the rotator cuff
For the purpose of early diagnosis of rotator cuff tears we have developed a method based on the brachial plexus nerve block (RF patent №2138196, 27.09.1999). It was used in 22 patients with soft tissue injuries of the shoulder joint with conduction anesthesia (0.5% solution of lidocaine, procaine) into supraclavicular area. After approach of the differentiated block the pain was stopped, thus possibility of physical activity in a shoulder joint remained. Restoration of active abduction testified to partial damage of the rotator cuff, absence - about full. The received data were verified by ultrasound, surgical interventions and clinical observation. Sensitivity of our method is 88.2%, specificity - 80% and accuracy - 86,3%