48 research outputs found

    Ultrashort pulsed UV lasers based on the Ce3+:LiCaAlF6 and LiLuYF4:Ce3+ crystals

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    Β© Published under licence by IOP Publishing Ltd. Here we report on UV laser oscillation on colquiriite structure fluoride mixture crystals of Ce3+:LiCaAlF6 (Ce:LiCAF) and Ce3+:LiLuYF4 (Ce:LiLuYF) active media. We report on 800 ps pulse train lasing form Ce:LiCAF in composite cavity and single pulse lasing of 400 ps duration from Ce:LiLuYF in convenient Fabri-Perrot cavity and discuss conditions of pulse shortening in UV active medium by photodynamic processes

    Photodynamic processes in LiCaAlF6:Ce3+ UV active medium

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    Β© Published under licence by IOP Publishing Ltd. The objectives of this paper are experimental studies of pump-induced effects in LiCaAlF6: Ce3+ single crystals and computer model elaboration and appropriated software package engineering. The elaborated experimental technique and software allow either to calculate the nonlinear absorption/gain characteristics of the active medium on the basis of known parameters, or to find its previously unknown parameters from pump-probe experimental dependences

    Pump-probe studies of absorption saturation and optical gain in Ce:LiCaAlF6 ultraviolet active medium

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    Aim of this work was to investigate nonlinear absorption of pump radiation in UV spectral range of Ce3+:LiCaAlF6 crystalline active medium. We were able to evaluate excited state absorption cross-section at pump wavelength (266 nm) and recombination probabilities by means of computer simulation. Β© Published under licence by IOP Publishing Ltd

    Specifics of cerebral haemodynamics in patients with the hemispheric ischemic stroke

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    Ап inspection is conducted 112 patients with hemispheric ischemic stroke (IS) in age from 40 to 84 years, part on the degree of expressed of neurological deficit in obedience to the Scandinavian scale (35,7+8,1) - 1 group (54), (53,8+4,2 points) is II a group (58). The comparative analysis of neurological deficit is given, level neuron - specific enolase (NSE) in blood, hemodynamic indexes, character of atherosclerotic name-plates. We compared the hemodynamic features of carotid and vertebrobasilar region. Dependence is exposed between expressed of neurological defect, degree of damage of fabric of brain, characterized by the change of level of NSE and degree of disturbances of hemodynamic. The highest degree of severity of neurological symptoms of hemispheric IS was observed in significant concomitant carotid lesions and vertebrobasilar region extravasal compression of vertebral arteries dynamic nature, combined with little hemodynamically significant carotid stenosis predominated in patients with hemispheric IS with a lesser degree of ischemic damage and neurological deficits. Character of atherosclerotic name-plates reflected pathogenic of ischemic stroke.ΠŸΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΎ клиничСскоС ΠΈ ΡƒΠ»ΡŒΡ‚Ρ€Π°Π·Π²ΡƒΠΊΠΎΠ²ΠΎΠ΅ дуплСксноС обслСдованиС 112 ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с атСротромботичСским ΠΏΠΎΠ΄Ρ‚ΠΈΠΏΠΎΠΌ ΠΏΠΎΠ»ΡƒΡˆΠ°Ρ€Π½ΠΎΠ³ΠΎ ΠΈΡˆΠ΅ΠΌΠΈΡ‡Π΅ΡΠΊΠΎΠ³ΠΎ ΠΈΠ½ΡΡƒΠ»ΡŒΡ‚Π° (ИИ) Π² возрастС ΠΎΡ‚ 40 Π΄ΠΎ 84 Π»Π΅Ρ‚, Ρ€Π°Π·Π΄Π΅Π»Π΅Π½Π½Ρ‹Ρ… ΠΏΠΎ стСпСни выраТСнности нСврологичСского Π΄Π΅Ρ„ΠΈΡ†ΠΈΡ‚Π° согласно скандинавской шкалС (35,7+8,1) - 1 Π³Ρ€ΡƒΠΏΠΏΠ° (54); (53,8+4,2 Π±Π°Π»Π»ΠΎΠ²) - II Π³Ρ€ΡƒΠΏΠΏΠ° (58). Π£ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² ΠΎΠ±Π΅ΠΈΡ… Π³Ρ€ΡƒΠΏΠΏ Π΄Π°Π½ ΡΡ€Π°Π²Π½ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΉ Π°Π½Π°Π»ΠΈΠ· нСврологичСского Π΄Π΅Ρ„ΠΈΡ†ΠΈΡ‚Π°, уровня Π½Π΅ΠΉΡ€ΠΎΠ½ - спСцифичСской Π΅Π½ΠΎΠ»Π°Π·Ρ‹ (НБЕ) Π² ΠΊΡ€ΠΎΠ²ΠΈ, гСмодинамичСских ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ, Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€Π° атСросклСротичСских бляшСк, особСнностСй Π³Π΅ΠΌΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΠΊΠΈ Π² ΠΊΠ°Ρ€ΠΎΡ‚ΠΈΠ΄Π½ΠΎΠΌ ΠΈ Π²Π΅Ρ€Ρ‚Π΅Π±Ρ€ΠΎ-базилярном бассСйнах. УстановлСна Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡ‚ΡŒ ΠΌΠ΅ΠΆΠ΄Ρƒ Π²Ρ‹Ρ€Π°ΠΆΠ΅Π½Π½ΠΎΡΡ‚ΡŒΡŽ нСврологичСского Π΄Π΅Ρ„Π΅ΠΊΡ‚Π°, ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΠ΅ΠΌ уровня НБЕ ΠΈ ΡΡ‚Π΅ΠΏΠ΅Π½ΡŒΡŽ Π½Π°Ρ€ΡƒΡˆΠ΅Π½ΠΈΡ Π³Π΅ΠΌΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΠΊΠΈ. Наибольшая ΡΡ‚Π΅ΠΏΠ΅Π½ΡŒ тяТСсти нСврологичСской симптоматики ΠΏΠΎΠ»ΡƒΡˆΠ°Ρ€Π½ΠΎΠ³ΠΎ ИИ наблюдалась ΠΏΡ€ΠΈ Π·Π½Π°Ρ‡ΠΈΠΌΠΎΠΌ сочСтанном ΠΏΠΎΡ€Π°ΠΆΠ΅Π½ΠΈΠΈ ΠΊΠ°Ρ€ΠΎΡ‚ΠΈΠ΄Π½ΠΎΠ³ΠΎ ΠΈ вСртСбробазилярного бассСйнов, ΡΠΊΡΡ‚Ρ€Π°Π²Π°Π·Π°Π»ΡŒΠ½Π°Ρ компрСссия ΠΏΠΎΠ·Π²ΠΎΠ½ΠΎΡ‡Π½Ρ‹Ρ… Π°Ρ€Ρ‚Π΅Ρ€ΠΈΠΉ динамичСского Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€Π° Π² сочСтании с гСмодинамичСски Π·Π½Π°Ρ‡ΠΈΠΌΡ‹ΠΌΠΈ (65-70%) стСнозами сонных Π°Ρ€Ρ‚Π΅Ρ€ΠΈΠΉ ΠΏΡ€Π΅ΠΎΠ±Π»Π°Π΄Π°Π»Π° Ρƒ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… ИИ с мСньшСй ΡΡ‚Π΅ΠΏΠ΅Π½ΡŒΡŽ ΠΈΡˆΠ΅ΠΌΠΈΡ‡Π΅ΡΠΊΠΎΠ³ΠΎ пораТСния ΠΈ нСврологичСского Π΄Π΅Ρ„ΠΈΡ†ΠΈΡ‚Π°. Π₯Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€ атСросклСротичСских бляшСк ΠΎΡ‚Ρ€Π°ΠΆΠ°Π» ΠΏΠ°Ρ‚ΠΎΠ³Π΅Π½Π΅Π· ΠΈΡˆΠ΅ΠΌΠΈΡ‡Π΅ΡΠΊΠΎΠ³ΠΎ ΠΈΠ½ΡΡƒΠ»ΡŒΡ‚Π°

    Π›ΠΎΠΊΠ°Π»ΡŒΠ½Π°Ρ ΠΈΠ½ΡŠΠ΅ΠΊΡ†ΠΈΠΎΠ½Π½Π°Ρ тСрапия Π² комплСксном Π»Π΅Ρ‡Π΅Π½ΠΈΠΈ Π±ΠΎΠ»Π΅Π·Π½Π΅ΠΉ костно-ΠΌΡ‹ΡˆΠ΅Ρ‡Π½ΠΎΠΉ систСмы: основныС ΠΏΡ€ΠΈΠ½Ρ†ΠΈΠΏΡ‹ использования, Π΄ΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»ΡŒΠ½Π°Ρ Π±Π°Π·Π°, Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡ‚ΡŒ

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    Local injection therapy (LIT)Β  is an important component of the complex treatment of musculoskeletal disorders (MSD), which is widely used in real clinical practice. Glucocorticoids, hyaluronic acid drugs (HA), autologous cell drugs, botulinum toxin type A, radioactive isotopes, etc. are used for LIT.Β  LIT makes it possible to achieve a pronounced symptomatic effect, while in some cases, for example, repeated HA treatments in patients with osteoarthritis, the possibility of slowing the progression of the disease and reducing the need for surgical treatment is discussed.The performance of LIT requires special skills and abilities of the physician, careful compliance with the rules of asepsis and antisepsis, and instrumental visualization. LIT can be associated with serious complications and therefore must be performed according to strict indications.The Expert Council was devoted to defining the basic principles of LIT. The indications for the use of certain types of this therapies, the evidence base for its efficacy and safety, the order of application of different drugs, and the need to combine LIT with other drug and non-drug treatments of MSD were reviewed.Π›ΠΎΠΊΠ°Π»ΡŒΠ½Π°Ρ ΠΈΠ½ΡŠΠ΅ΠΊΡ†ΠΈΠΎΠ½Π½Π°Ρ тСрапия (Π›Π˜Π’)Β  – ваТная ΡΠΎΡΡ‚Π°Π²Π»ΡΡŽΡ‰Π°Ρ комплСксного лСчСния Π±ΠΎΠ»Π΅Π·Π½Π΅ΠΉ костно-ΠΌΡ‹ΡˆΠ΅Ρ‡Π½ΠΎΠΉ систСмы (Π‘ΠšΠœΠ‘), ΡˆΠΈΡ€ΠΎΠΊΠΎ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅ΠΌΠ°Ρ Π² Ρ€Π΅Π°Π»ΡŒΠ½ΠΎΠΉ клиничСской ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ΅. Для Π›Π˜Π’ ΠΏΡ€ΠΈΠΌΠ΅Π½ΡΡŽΡ‚ΡΡ Π³Π»ΡŽΠΊΠΎΠΊΠΎΡ€Ρ‚ΠΈΠΊΠΎΠΈΠ΄Ρ‹, ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚Ρ‹ Π³ΠΈΠ°Π»ΡƒΡ€ΠΎΠ½ΠΎΠ²ΠΎΠΉ кислоты (Π“Π»Πš), Π°ΡƒΡ‚ΠΎΠ»ΠΎΠ³ΠΈΡ‡Π½Ρ‹Π΅ ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½Ρ‹Π΅ ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚Ρ‹, ботулиничСский токсин Ρ‚ΠΈΠΏΠ° А, Ρ€Π°Π΄ΠΈΠΎΠ°ΠΊΡ‚ΠΈΠ²Π½Ρ‹Π΅ ΠΈΠ·ΠΎΡ‚ΠΎΠΏΡ‹ ΠΈ Π΄Ρ€. Π›Π˜Π’ позволяСт Π΄ΠΎΠ±ΠΈΡ‚ΡŒΡΡ Π²Ρ‹Ρ€Π°ΠΆΠ΅Π½Π½ΠΎΠ³ΠΎ симптоматичСского эффСкта, ΠΏΡ€ΠΈ этом Π² рядС случаСв, Π½Π°ΠΏΡ€ΠΈΠΌΠ΅Ρ€ ΠΏΡ€ΠΈ ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠΈ ΠΏΠΎΠ²Ρ‚ΠΎΡ€Π½Ρ‹Ρ… курсов лСчСния Π“Π»Πš Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с остСоартритом, обсуТдаСтся Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ замСдлСния прогрСссирования заболСвания ΠΈ сниТСния потрСбности Π² хирургичСском Π»Π΅Ρ‡Π΅Π½ΠΈΠΈ.ΠŸΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ Π›Π˜Π’ Ρ‚Ρ€Π΅Π±ΡƒΠ΅Ρ‚ ΡΠΏΠ΅Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ ΠΊΠΎΠΌΠΏΠ΅Ρ‚Π΅Π½Ρ†ΠΈΠΈ ΠΈ Π½Π°Π²Ρ‹ΠΊΠΎΠ² Π²Ρ€Π°Ρ‡Π°, Ρ‚Ρ‰Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠ³ΠΎ соблюдСния ΠΏΡ€Π°Π²ΠΈΠ» асСптики ΠΈ антисСптики, ΠΈΠ½ΡΡ‚Ρ€ΡƒΠΌΠ΅Π½Ρ‚Π°Π»ΡŒΠ½ΠΎΠΉ Π²ΠΈΠ·ΡƒΠ°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ.Β  Π›Π˜Π’Β  ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ сопряТСна с ΡΠ΅Ρ€ΡŒΠ΅Π·Π½Ρ‹ΠΌΠΈ ослоТнСниями, поэтому Π΄ΠΎΠ»ΠΆΠ½Π° Π²Ρ‹ΠΏΠΎΠ»Π½ΡΡ‚ΡŒΡΡ ΠΏΠΎ строгим показаниям.Π‘ΠΎΠ²Π΅Ρ‚ экспСртов Π±Ρ‹Π» посвящСн ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΡŽ основных ΠΏΡ€ΠΈΠ½Ρ†ΠΈΠΏΠΎΠ² Π›Π˜Π’. Π‘Ρ‹Π»ΠΈ рассмотрСны показания для примСнСния Ρ‚Π΅Ρ… ΠΈΠ»ΠΈ ΠΈΠ½Ρ‹Ρ… Π²ΠΈΠ΄ΠΎΠ² Π΄Π°Π½Π½ΠΎΠΉ Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ,Β  Π΄ΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»ΡŒΠ½Π°Ρ Π±Π°Π·Π° Π΅Π΅ эффСктивности ΠΈ бСзопасности, ΠΏΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ использования Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΎΠ², Π° Ρ‚Π°ΠΊΠΆΠ΅ Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΠΎΡΡ‚ΡŒ ΠΊΠΎΠΌΠ±ΠΈΠ½Π°Ρ†ΠΈΠΈ Π›Π˜Π’ с Π΄Ρ€ΡƒΠ³ΠΈΠΌΠΈ ΠΌΠ΅Π΄ΠΈΠΊΠ°ΠΌΠ΅Π½Ρ‚ΠΎΠ·Π½Ρ‹ΠΌΠΈ ΠΈ Π½Π΅ΠΌΠ΅Π΄ΠΈΠΊΠ°ΠΌΠ΅Π½Ρ‚ΠΎΠ·Π½Ρ‹ΠΌΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Π°ΠΌΠΈ лСчСния Π‘ΠšΠœΠ‘

    THE INVERSE PROBLEM FOR LONGITUDINAL-AND-TRANSVERSAL BENDING OF BAR

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    НайдСны Ρ„ΠΎΡ€ΠΌΡƒΠ»Ρ‹ ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ интСнсивности постоянной ΠΏΠΎΠΏΠ΅Ρ€Π΅Ρ‡Π½ΠΎΠΉ распрСдСлСнной Π½Π°Π³Ρ€ΡƒΠ·ΠΊΠΈ ΠΈ ΡƒΠΏΡ€ΡƒΠ³ΠΈΡ… Π·Π°ΠΊΡ€Π΅ΠΏΠ»Π΅Π½ΠΈΠΉ стСрТня ΠΏΠΎ пяти значСниям Π΅Π³ΠΎ смСщСний. ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½ ΡΠΎΠΎΡ‚Π²Π΅Ρ‚ΡΡ‚Π²ΡƒΡŽΡ‰ΠΈΠΉ ΠΏΡ€ΠΈΠΌΠ΅Ρ€
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