814 research outputs found
Collection of Mutually Synchronized Chaotic Systems
A general explicit coupling for mutual synchronization of two arbitrary
identical continuous systems is proposed. The synchronization is proved
analytically. The coupling is given for all 19 systems from Sprott's
collection. For one of the systems the numerical results are shown in detail.
The method could be adopted for the teaching of the topic.Comment: Published in Physics Letters A 352 (2006) 222-22
ΠΠ°ΡΠΊΠ΅ΡΡ ΡΠ½Π΄ΠΎΡΠ΅Π»ΠΈΠ°Π»ΡΠ½ΠΎΠΉ Π΄ΠΈΡΡΡΠ½ΠΊΡΠΈΠΈ ΠΈ Π²ΠΎΡΠΏΠ°Π»Π΅Π½ΠΈΡ ΠΏΡΠΈ ΠΈΠ΄ΠΈΠΎΠΏΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΌ ΡΡΠΎΠΌΠ±ΠΎΠ·Π΅ Π³Π»ΡΠ±ΠΎΠΊΠΈΡ Π²Π΅Π½
Idiopathic deep vein thrombosis is a process of venous thrombosis with the absence of challenging factors (thrombophilia, cancer, immobilization,
trauma, surgical intervention etc.). In the present study, the admission values of the endothelium dysfunction and inflammation markers have been
assayed in 78 patients with idiopathic deep vein thrombosis. The nitric oxide circulating level was reduced by 56.3% that correlated with a flow mediated
brachial artery dilation decrease by 47% and with a carotid artery intima-media thickness rise by 77.6%. Likewise, an evident activation of inflammatory
response has been attested that was manifested by an increase in serum levels of C reactive protein and IL-6 by 3.14 and 4.7 times. Thus, the shifting
markers indicate a pathogenic role of endothelium dysfunction and inflammation in idiopathic deep vein thrombosis evolution, yet, on the other hand,
they can be used as diagnostic and prognostic predictors of the malady.ΠΠ΄ΠΈΠΎΠΏΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΠΉ ΡΡΠΎΠΌΠ±ΠΎΠ· Π³Π»ΡΠ±ΠΎΠΊΠΈΡ
Π²Π΅Π½ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΠ΅Ρ ΡΠΎΠ±ΠΎΠΉ ΠΏΡΠΎΡΠ΅ΡΡ Π²Π΅Π½ΠΎΠ·Π½ΠΎΠ³ΠΎ ΡΡΠΎΠΌΠ±ΠΎΠ·Π° Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΠΎΡΡΡΡΡΡΠ²ΠΈΡ ΠΏΡΠΎΠ²ΠΎΡΠΈΡΡΡΡΠΈΡ
ΡΠ°ΠΊΡΠΎΡΠΎΠ²
(ΡΡΠΎΠΌΠ±ΠΎΡΠΈΠ»ΠΈΡ, ΠΎΠΏΡΡ
ΠΎΠ»Ρ, ΠΈΠΌΠΌΠΎΠ±ΠΈΠ»ΠΈΠ·Π°ΡΠΈΡ, ΡΡΠ°Π²ΠΌΠ°, Ρ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ΅ Π²ΠΌΠ΅ΡΠ°ΡΠ΅Π»ΡΡΡΠ²ΠΎ ΠΈ Π΄Ρ.). Π Π΄Π°Π½Π½ΠΎΠΌ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΈ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ»ΠΎΡΡ Π·Π½Π°ΡΠ΅Π½ΠΈΠ΅ ΠΌΠ°ΡΠΊΠ΅ΡΠΎΠ²
ΡΠ½Π΄ΠΎΡΠ΅Π»ΠΈΠ°Π»ΡΠ½ΠΎΠΉ Π΄ΠΈΡΡΡΠ½ΠΊΡΠΈΠΈ ΠΈ Π²ΠΎΡΠΏΠ°Π»Π΅Π½ΠΈΡ Ρ 78 Π±ΠΎΠ»ΡΠ½ΡΡ
Ρ ΠΈΠ΄ΠΈΠΎΠΏΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΠΌ ΡΡΠΎΠΌΠ±ΠΎΠ·Π΅ Π³Π»ΡΠ±ΠΎΠΊΠΈΡ
Π²Π΅Π½ ΠΏΡΠΈ ΠΏΠΎΡΡΡΠΏΠ»Π΅Π½ΠΈΠΈ. Π¦ΠΈΡΠΊΡΠ»ΠΈΡΡΡΡΠΈΠΉ ΡΡΠΎΠ²Π΅Π½Ρ
ΠΎΠΊΠΈΡΠΈ Π°Π·ΠΎΡΠ° Π±ΡΠ» ΡΠ½ΠΈΠΆΠ΅Π½ Π½Π° 56,3%, ΡΡΠΎ ΠΊΠΎΡΡΠ΅Π»ΠΈΡΠΎΠ²Π°Π»ΠΎ Ρ ΡΠΌΠ΅Π½ΡΡΠ΅Π½ΠΈΠ΅ΠΌ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Ρ ΡΠ°ΡΡΠΈΡΠ΅Π½ΠΈΡ ΠΏΠ»Π΅ΡΠ΅Π²ΠΎΠΉ Π°ΡΡΠ΅ΡΠΈΠΈ Π½Π° 47% ΠΈ Ρ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠ΅ΠΌ
ΡΠΎΠ»ΡΠΈΠ½Ρ ΠΈΠ½ΡΠΈΠΌΡ-ΠΌΠ΅Π΄ΠΈΠΈ ΡΠΎΠ½Π½ΠΎΠΉ Π°ΡΡΠ΅ΡΠΈΠΈ Π½Π° 77,6%. Π’Π°ΠΊΠΆΠ΅ Π²ΡΡΠ²Π»Π΅Π½Π° Π²ΡΡΠ°ΠΆΠ΅Π½Π½Π°Ρ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΡ Π²ΠΎΡΠΏΠ°Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΎΡΠ²Π΅ΡΠ°, ΡΡΠΎ ΡΠΎΠΏΡΠΎΠ²ΠΎΠΆΠ΄Π°Π»ΠΎΡΡ
ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΡ Π² ΠΊΡΠΎΠ²ΠΈ Π‘-ΡΠ΅Π°ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ Π±Π΅Π»ΠΊΠ° ΠΈ ΠΈΠ½ΡΠ΅ΡΠ»Π΅ΠΉΠΊΠΈΠ½Π°-6. Π’Π°ΠΊΠΈΠΌ ΠΎΠ±ΡΠ°Π·ΠΎΠΌ, ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΠΌΠ°ΡΠΊΠ΅ΡΠΎΠ² ΡΠΊΠ°Π·ΡΠ²Π°Π΅Ρ Π½Π° ΠΏΠ°ΡΠΎΠ³Π΅Π½Π΅ΡΠΈΡΠ΅ΡΠΊΡΡ
ΡΠΎΠ»Ρ ΡΠ½Π΄ΠΎΡΠ΅Π»ΠΈΠ°Π»ΡΠ½ΠΎΠΉ Π΄ΠΈΡΡΡΠ½ΠΊΡΠΈΠΈ ΠΈ Π²ΠΎΡΠΏΠ°Π»Π΅Π½ΠΈΡ Π² ΡΠ°Π·Π²ΠΈΡΠΈΠΈ ΠΈΠ΄ΠΈΠΎΠΏΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΡΠΎΠΌΠ±ΠΎΠ·Π° Π³Π»ΡΠ±ΠΎΠΊΠΈΡ
Π²Π΅Π½, Π° ΡΠ°ΠΊΠΆΠ΅ Π½Π° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΠΈΡ
ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ
Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈ ΠΏΡΠΎΠ³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠ΅Π΄ΠΈΠΊΡΠΎΡΠΎΠ² Π±ΠΎΠ»Π΅Π·Π½ΠΈ
Monte Carlo Methods for Process Algebra
AbstractWe review the recently developed technique of Monte Carlo model checking and show how it can be applied to the implementation problem for I/O Automata. We then consider some open problems in applying Monte Carlo techniques to other process-algebraic problems, such as simulation and bisimulation
ΠΠΈΡΡΡΠ½ΠΊΡΠΈΡ ΡΠΈΠ½ΡΡΠΎΠ²ΠΎΠ³ΠΎ ΡΠ·Π»Π°: Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠ° ΠΈ Π»Π΅ΡΠ΅Π½ΠΈΠ΅
Institute of Cardiology, Congresul III al Medicilor de Familie din Republica Moldova, 17β18 mai, 2012, ChiΕinΔu, Republica Moldova, ConferinΕ£a NaΕ£ionalΔ βMaladii bronhoobstructive la copiiβ, consacratΔ profesorului universitar, doctor habilitat Victor GheΕ£eul, 27 aprilie, ChiΕinΔu, Republica MoldovaSinus node dysfunction (SND) refers to abnormalities in sinus node impulse formation and propagation, and includes sinus bradycardia, sinus
pause/arrest, chronotropic incompetence, and sinoatrial exit block. SND is frequently associated with conduction system disease in the heart and various
supraventricular tachyarrhythmias, such as atrial fibrillation and atrial flutter. When associated with supraventricular tachyarrhythmias, SND is often
termed tachy-brady syndrome. Although SND may occur at any age, it is primarily a disease of the elderly and, presumably, related to the senescence
of the sinus node, which is often accompanied with the senescence of the atrium and the conduction system in the heart. When SND occurs earlier in
life, it is often secondary to other cardiac disease processes. The natural history of SND may be highly variable, although it tends to be progressive in
nature. The only effective treatment for patients with chronic symptomatic SND is pacemaker therapy. Asymptomatic patients do not require therapy.ΠΠΈΡΡΡΠ½ΠΊΡΠΈΡ ΡΠΈΠ½ΡΡΠΎΠ²ΠΎΠ³ΠΎ ΡΠ·Π»Π° (ΠΠ‘Π£), ΠΎΡΠ½ΠΎΡΠΈΡΡΡ ΠΊ Π°Π½ΠΎΠΌΠ°Π»ΠΈΡΠΌ Π² ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²Π΅ ΠΈ ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½Π΅Π½ΠΈΠΈ ΠΈΠΌΠΏΡΠ»ΡΡΠΎΠ² ΠΎΡ ΡΠΈΠ½ΡΡΠΎΠ²ΠΎΠ³ΠΎ ΡΠ·Π»Π° ΠΈ Π²ΠΊΠ»ΡΡΠ°Π΅Ρ
ΡΠΈΠ½ΡΡΠΎΠ²ΡΡ Π±ΡΠ°Π΄ΠΈΠΊΠ°ΡΠ΄ΠΈΡ, ΡΠΈΠ½ΡΡΠ°Π»ΡΠ½ΡΡ ΠΏΠ°ΡΠ·Ρ/ΡΡΠΎΠΏ (ΠΎΡΡΠ°Π½ΠΎΠ²ΠΊΡ), ΡΠΈΠ½ΠΎΠ°ΡΡΠΈΠ°Π»ΡΠ½ΡΡ Π±Π»ΠΎΠΊΠ°Π΄Ρ ΠΈ Ρ
ΡΠΎΠ½ΠΎΡΡΠΎΠΏΠ½ΡΡ Π½Π΅ΠΊΠΎΠΌΠΏΠ΅ΡΠ΅Π½ΡΠ½ΠΎΡΡΡ. ΠΠ‘Π£ ΡΠ°ΡΡΠΎ
Π°ΡΡΠΎΡΠΈΠΈΡΡΠ΅ΡΡΡ Ρ Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠ΅ΠΌ ΠΏΡΠΎΠ²ΠΎΠ΄ΡΡΠ΅ΠΉ ΡΠΈΡΡΠ΅ΠΌΡ ΡΠ΅ΡΠ΄ΡΠ° ΠΈ Ρ ΡΠ°Π·Π»ΠΈΡΠ½Π½ΡΠΌΠΈ ΡΡΠΏΡΠ°Π²Π΅Π½ΡΡΠΈΠΊΡΠ»ΡΡΠ½ΡΠΌΠΈ ΡΠ°Ρ
ΠΈΠ°ΡΠΈΡΠΌΠΈΡΠΌΠΈ, ΡΠ°ΠΊΠΈΠ΅ ΠΊΠ°ΠΊ ΡΠΈΠ±ΡΠΈΠ»Π»ΡΡΠΈΡ
ΠΏΡΠ΅Π΄ΡΠ΅ΡΠ΄ΠΈΠΉ ΠΈ ΡΡΠ΅ΠΏΠ΅ΡΠ°Π½ΠΈΠ΅ ΠΏΡΠ΅Π΄ΡΠ΅ΡΠ΄ΠΈΠΉ. ΠΡΡΠΎΡΠΈΠ°ΡΠΈΡ ΠΠ‘Π£ Ρ ΡΡΠΏΡΠ°Π²Π΅Π½ΡΡΠΈΠΊΡΠ»ΡΡΠ½ΠΎΠΉ ΡΠ°Ρ
ΠΈΠ°ΡΠΈΡΠΌΠΈΠ΅ΠΉ Π½Π°Π·ΡΠ²Π°Π΅ΡΡΡ ΡΠ°Ρ
ΠΈ-Π±ΡΠ°Π΄ΠΈΠΊΠ°ΡΠ΄ΠΈΠ°Π»ΡΠ½ΡΠΌ ΡΠΈΠ½Π΄ΡΠΎΠΌΠΎΠΌ.
Π₯ΠΎΡΡ ΠΠ‘Π£ ΠΌΠΎΠΆΠ΅Ρ ΠΏΡΠΎΡΠ²Π»ΡΡΡΡΡ Π² Π»ΡΠ±ΠΎΠΌ Π²ΠΎΠ·ΡΠ°ΡΡΠ΅, ΡΠ²Π»ΡΠ΅ΡΡΡ Π΄ΠΎΠΌΠΈΠ½Π°Π½ΡΠ½ΡΠΌ Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠ΅ΠΌ ΠΏΠΎΠΆΠΈΠ»ΡΡ
, ΡΠ²ΡΠ·Π°Π½Π½ΠΎΠ΅ Ρ Π΄Π΅Π³Π΅Π½Π΅ΡΠ°ΡΠΈΠ²Π½ΡΠΌΠΈ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡΠΌΠΈ
ΠΊΠ»Π΅ΡΠΎΠΊ ΡΠΈΠ½ΡΡΠΎΠ²ΠΎΠ³ΠΎ ΡΠ·Π»Π°, ΠΊΠΎΡΠΎΡΠΎΠ΅ ΡΠ°ΡΡΠΎ Π½Π°Π±Π»ΡΠ΄Π°Π΅ΡΡΡ Ρ ΠΏΠΎΠΆΠΈΠ»ΡΡ
Π»ΡΠ΄Π΅ΠΉ. ΠΠ‘Π£ Ρ ΠΌΠΎΠ»ΠΎΠ΄ΡΡ
, ΡΠ°ΡΡΠΎ Π²ΡΠΎΡΠΈΡΠ½Π° Π΄ΡΡΠ³ΠΈΠΌ Π±ΠΎΠ»Π΅Π·Π½ΡΠΌ ΡΠ΅ΡΠ΄ΡΠ°. ΠΡΡΠ΅ΡΡΠ²Π΅Π½Π½Π°Ρ
ΠΈΡΡΠΎΡΠΈΡ ΠΠ‘Π£ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΡΡΠ΅Π·Π²ΡΡΠ°ΠΉΠ½ΠΎ ΡΠ°Π·Π½ΠΎΠΎΠ±ΡΠ°Π·Π½Π°, Ρ
ΠΎΡΡ ΠΈ ΠΈΠΌΠ΅Π΅Ρ ΡΠ΅Π½Π΄Π΅Π½ΡΠΈΡ ΠΊ ΠΏΡΠΎΠ³ΡΠ΅ΡΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ. ΠΠ΄ΠΈΠ½ΡΡΠ²Π΅Π½Π½ΡΠΌ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΡΠΌ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ
Π»Π΅ΡΠ΅Π½ΠΈΡ Π±ΠΎΠ»ΡΠ½ΡΡ
Ρ ΡΠΈΠΌΠΏΡΠΎΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Ρ
ΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π±ΡΠ°Π΄ΠΈΠ°ΡΠΈΡΠΌΠ΅ΠΉ ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡ ΠΠΠ‘. ΠΠ΅ΡΡΠΈΠΌΠΏΡΠΎΠΌΠ½ΡΠ΅ ΠΏΠ°ΡΠΈΠ΅Π½ΡΡ Π½Π΅ Π½ΡΠΆΠ΄Π°ΡΡΡΡ Π² Π»Π΅ΡΠ΅Π½ΠΈΠΈ
Myocardial infarction: progress and achievements
Department of Emergency and Cardiac Rhythm Disorders, Institute of Cardiology, Chisinau, the Republic of MoldovaBackground: Myocardial infarction (MI) remains a major health care and economic burden in Moldova. In the last decades in many countries the
epidemiological studies have shown the reduction of MI related mortality. This reduction has partially been attributed to the new pharmacological and
medical equipment advances that have been used during MI treatment. Despite a tangible improvement in the outcomes, MI remains a frequent cause
of morbidity and mortality, what justifies the quest to find the new therapeutic approaches. Many patients with MI die from sudden death, which occurs
outside the medical institutions.
Conclusions: At present there are fewer chances of the extensive infarctions complicated with severe heart failure and ventricular wall rupture. The
methods of early reperfusion have resulted in a marked improvement in the treatment of myocardial infarction associated with ST segment elevation,
but have only slightly influenced the prognosis of extensive infarctions associated with ST segment depression. The ways to reduce the delay in doing
coronary angioplasty after MI onset include the early recognition of symptoms by patients and by means of prehospital diagnosis. A major problem still
remains the problem of late coming to the clinics of the patients with acute myocardial infarction. The low level of health education of the population,
its ignorance of the disease onset signs has a negative impact on the possibility of preventing the severe complications
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