83 research outputs found
Phase transition to the state with nonzero average helicity in dense neutron matter
The possibility of the appearance of the states with a nonzero average
helicity in neutron matter is studied in the model with the Skyrme effective
interaction. By providing the analysis of the self-consistent equations at zero
temperature, it is shown that neutron matter with the Skyrme BSk18 effective
force undergoes at high densities a phase transition to the state in which the
degeneracy with respect to helicity of neutrons is spontaneously removed.Comment: 4 pages, 3 figures; v2: journal versio
Spin polarized states in strongly asymmetric nuclear matter
In the framework of a Fermi liquid theory it is considered the possibility of
appearance of spin polarized states in strongly asymmetric nuclear matter with
Skyrme effective interaction. The zero temperature dependence of neutron and
proton spin polarization parameters as functions of density is found for SLy4,
SLy5 effective forces. It is shown that at some critical density it will be
formed the state with the oppositely directed spins of neutrons and protons,
while the state with the same direction of spins does not appear. In comparison
with neutron matter, even small admixture of protons strongly decreases the
threshold density of spin instability. It is clarified that protons become
totally polarized within very narrow density domain while in the density
profile of neutron spin polarization parameter their appear long tails near the
transition density.Comment: Prepared with RevTeX4, 8p., 3 figures; to appear in PR
Anisotropic multi-gap superfluid states in nuclear matter
It is shown that under changing density or temperature a nucleon Fermi
superfluid can undergo a phase transition to an anisotropic superfluid state,
characterized by nonvanishing gaps in pairing channels with singlet-singlet
(SS) and triplet-singlet (TS) pairing of nucleons (in spin and isospin spaces).
In the SS pairing channel nucleons are paired with nonzero orbital angular
momentum. Such two-gap states can arise as a result of branching from the
one-gap solution of the self-consistent equations, describing SS or TS pairing
of nucleons, that depends on the relationship between SS and TS coupling
constants at the branching point. The density/temperature dependence of the
order parameters and the critical temperature for transition to the anisotropic
two-gap state are determined in a model with the SkP effective interaction. It
is shown that the anisotropic SS-TS superfluid phase corresponds to a
metastable state in nuclear matter.Comment: Prepared with RevTeX4, 7p., 5 fi
Competition of ferromagnetic and antiferromagnetic spin ordering in nuclear matter
In the framework of a Fermi liquid theory it is considered the possibility of
ferromagnetic and antiferromagnetic phase transitions in symmetric nuclear
matter with Skyrme effective interaction. The zero temperature dependence of
ferromagnetic and antiferromagnetic spin polarization parameters as functions
of density is found for SkM, SGII effective forces. It is shown that in the
density domain, where both type of solutions of self--consistent equations
exist, ferromagnetic spin state is more preferable than antiferromagnetic one.Comment: 9p., 3 figure
RETINAL VESSELS DIGITAL MORPHOMETRY IN ANALYSIS OF LASER TREATMENT RESULTS IN RETINOPATHY OF PREMATURITY
Purpose. Quantification of morphometric parameters of segments of retinal vessels of the central fundus zone, vessels of the 2nd order and peripheral vessels in the vicinity of the avascular zone to detect early signs and dynamics of stage II and III regression in retinopathy of prematurity (ROP) in different periods after laser treatment (LT).Material and methods. There were examined 50 preterm infants (100 eyes) with the type 2 (a high risk of progression) of the ROP stage II and III before and in different periods after pattern laser photocoagulation. The morphometric analysis of obtained digital images of the retina in children with ROP was performed using the retinal camera Β«RetCam 3Β» (Clarity Medisal Systems, Inc.,USA) in mode of the software Β«ROP-MORRNOMETRYΒ».Results. Statistically significant differences in the diameter of retinal vessels throughout their length and the tortuosity factor of arteries in the central fundus zone in the follow-up of 1 and 2 months after laser treatment were not revealed, indicating a robust ROP regression.Conclusions. Clinical applications of data obtained in the performed study allows to optimize the postoperative monitoring of premature infants with ROP, minimizing the quantity of repeated diagnostic tests
ΠΡΠ΅Π½ΠΊΠ° ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠ²Π½ΠΎΠ³ΠΎ Π»Π΅ΡΠ΅Π½ΠΈΡ Π±ΠΎΠ»ΡΠ½ΡΡ Ρ Ρ ΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΊΡΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΈΡΠ΅ΠΌΠΈΠ΅ΠΉ Π½ΠΈΠΆΠ½ΠΈΡ ΠΊΠΎΠ½Π΅ΡΠ½ΠΎΡΡΠ΅ΠΉ Π² ΡΡΠ°Π΄ΠΈΠΈ ΡΡΠΎΡΠΈΡΠ΅ΡΠΊΠΈΡ ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΠΉ
Relevance. Chronic critical ischemia of the lower extremities (CCILE) in the stage of trophic complications is the final stage of diseases of the arteries of the lower extremities, leading to disability of patients and having a poor prognosis in terms of preservation of the lower extremities and mortality.Aim of study. Objective assessment of the efficacy of lower limb revascularization in trophic disorders.Material and methods. The analysis of treatment of 52 patients with stage IV CCILE (according to the classification of R. Fontaine and A.V. Pokrovsky) was carried out. Of these, 42 patients underwent three-phase scintigraphy combined with X-ray computed angiography on a hybrid apparatus. After the operation, this study was conducted in 37 patients.Results. Out of 52 patients, surgery for revascularization of the lower extremities was performed in 37 patients, 15 were not operated on. Out of 37 operated patients, improvement of blood circulation occurred in 32 (86.5%). Circulatory decompensation was observed in 5 patients (9.7%). Among non-operated patients, improvement of blood circulation occurred in 9 patients (17.3%), no effect or decompensation β in 5 (9.7%). Subjective improvement in the condition and decrease in the degree of ischemia corresponded to the improvement of microcirculation according to the data of three-phase scintigraphy.Conclusion.1. Revascularization of the lower extremities in patients with trophic disorders is an effective method of treating this pathology. Therefore, all patients with chronic ischemia threatening limb loss should be considered as candidates for revascularization.2. If the leg arteries or short occlusive or stenotic lesions of the main arteries are affected, such patients should be discussed together with specialists in endovascular surgery for endovascular treatment or joint intervention.3. Hybrid radiation method (three-phase scintigraphy and single-photon emission computed tomography, combined with X-ray computed angiography) is an objective method that reflects the state of peripheral circulation and microcirculation, and allows you to objectively assess the effectiveness of the treatment.ΠΠΊΡΡΠ°Π»ΡΠ½ΠΎΡΡΡ. Π₯ΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠ°Ρ ΠΊΡΠΈΡΠΈΡΠ΅ΡΠΊΠ°Ρ ΠΈΡΠ΅ΠΌΠΈΡ Π½ΠΈΠΆΠ½ΠΈΡ
ΠΊΠΎΠ½Π΅ΡΠ½ΠΎΡΡΠ΅ΠΉ (Π₯ΠΠΠΠ) Π² ΡΡΠ°Π΄ΠΈΠΈ ΡΡΠΎΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΠΉ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΠ΅Ρ ΡΠΎΠ±ΠΎΠΉ ΠΊΠΎΠ½Π΅ΡΠ½ΡΡ ΡΡΠ°Π΄ΠΈΡ Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ Π°ΡΡΠ΅ΡΠΈΠΉ Π½ΠΈΠΆΠ½ΠΈΡ
ΠΊΠΎΠ½Π΅ΡΠ½ΠΎΡΡΠ΅ΠΉ, ΠΏΡΠΈΠ²ΠΎΠ΄ΡΡΡΡ ΠΊ ΠΈΠ½Π²Π°Π»ΠΈΠ΄ΠΈΠ·Π°ΡΠΈΠΈ Π±ΠΎΠ»ΡΠ½ΡΡ
ΠΈ ΠΈΠΌΠ΅ΡΡΡΡ Π½Π΅Π±Π»Π°Π³ΠΎΠΏΡΠΈΡΡΠ½ΡΠΉ ΠΏΡΠΎΠ³Π½ΠΎΠ· ΠΏΠΎ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»ΡΠΌ ΡΠΎΡ
ΡΠ°Π½Π΅Π½ΠΈΡ Π½ΠΈΠΆΠ½ΠΈΡ
ΠΊΠΎΠ½Π΅ΡΠ½ΠΎΡΡΠ΅ΠΉ ΠΈ Π»Π΅ΡΠ°Π»ΡΠ½ΠΎΡΡΠΈ.Π¦Π΅Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ. ΠΠ±ΡΠ΅ΠΊΡΠΈΠ²Π½Π°Ρ ΠΎΡΠ΅Π½ΠΊΠ° ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΡΠ΅Π²Π°ΡΠΊΡΠ»ΡΡΠΈΠ·Π°ΡΠΈΠΈ Π½ΠΈΠΆΠ½ΠΈΡ
ΠΊΠΎΠ½Π΅ΡΠ½ΠΎΡΡΠ΅ΠΉ ΠΏΡΠΈ ΡΡΠΎΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ°ΡΡΡΡΠΎΠΉΡΡΠ²Π°Ρ
.ΠΠ°ΡΠ΅ΡΠΈΠ°Π» ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. ΠΡΠΎΠ²Π΅Π΄Π΅Π½ Π°Π½Π°Π»ΠΈΠ· Π»Π΅ΡΠ΅Π½ΠΈΡ 52 Π±ΠΎΠ»ΡΠ½ΡΡ
Π₯ΠΠΠΠ IV ΡΡΠ°Π΄ΠΈΠΈ (ΠΏΠΎ ΠΊΠ»Π°ΡΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ R. Fontaine ΠΈ Π.Π. ΠΠΎΠΊΡΠΎΠ²ΡΠΊΠΎΠ³ΠΎ). ΠΠ· Π½ΠΈΡ
42 ΠΏΠ°ΡΠΈΠ΅Π½ΡΠ°ΠΌ Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π° ΡΡΠ΅Ρ
ΡΠ°Π·Π½Π°Ρ ΡΡΠΈΠ½ΡΠΈΠ³ΡΠ°ΡΠΈΡ, ΡΠΎΠ²ΠΌΠ΅ΡΠ΅Π½Π½Π°Ρ Ρ ΡΠ΅Π½ΡΠ³Π΅Π½ΠΎΠ²ΡΠΊΠΎΠΉ ΠΊΠΎΠΌΠΏΡΡΡΠ΅ΡΠ½ΠΎΠΉ Π°Π½Π³ΠΈΠΎΠ³ΡΠ°ΡΠΈΠ΅ΠΉ Π½Π° Π³ΠΈΠ±ΡΠΈΠ΄Π½ΠΎΠΌ Π°ΠΏΠΏΠ°ΡΠ°ΡΠ΅. ΠΠΎΡΠ»Π΅ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΈ Π΄Π°Π½Π½ΠΎΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΎ 37 ΠΏΠ°ΡΠΈΠ΅Π½ΡΠ°ΠΌ.Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. ΠΠ· 52 ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² ΠΎΠΏΠ΅ΡΠ°ΡΠΈΡ ΠΏΠΎ ΡΠ΅Π²Π°ΡΠΊΡΠ»ΡΡΠΈΠ·Π°ΡΠΈΠΈ Π½ΠΈΠΆΠ½ΠΈΡ
ΠΊΠΎΠ½Π΅ΡΠ½ΠΎΡΡΠ΅ΠΉ Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π° 37 ΠΏΠ°ΡΠΈΠ΅Π½ΡΠ°ΠΌ, Π½Π΅ ΠΎΠΏΠ΅ΡΠΈΡΠΎΠ²Π°Π½Ρ 15. ΠΠ· 37 ΠΎΠΏΠ΅ΡΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΡΠ»ΡΡΡΠ΅Π½ΠΈΠ΅ ΠΊΡΠΎΠ²ΠΎΠΎΠ±ΡΠ°ΡΠ΅Π½ΠΈΡ ΠΏΡΠΎΠΈΠ·ΠΎΡΠ»ΠΎ Ρ 32 (86,5%). ΠΠ΅ΠΊΠΎΠΌΠΏΠ΅Π½ΡΠ°ΡΠΈΡ ΠΊΡΠΎΠ²ΠΎΠΎΠ±ΡΠ°ΡΠ΅Π½ΠΈΡ ΠΎΡΠΌΠ΅ΡΠ΅Π½Π° Ρ 5 ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² (9,7%). Π‘ΡΠ΅Π΄ΠΈ Π½Π΅ΠΎΠΏΠ΅ΡΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² ΡΠ»ΡΡΡΠ΅Π½ΠΈΠ΅ ΠΊΡΠΎΠ²ΠΎΠΎΠ±ΡΠ°ΡΠ΅Π½ΠΈΡ ΠΏΡΠΎΠΈΠ·ΠΎΡΠ»ΠΎ Ρ 9 ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² (17,3%), ΠΎΡΡΡΡΡΡΠ²ΠΈΠ΅ ΡΡΡΠ΅ΠΊΡΠ° ΠΈΠ»ΠΈ Π΄Π΅ΠΊΠΎΠΌΠΏΠ΅Π½ΡΠ°ΡΠΈΡ β Ρ 5 (9,7%). Π‘ΡΠ±ΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠ΅ ΡΠ»ΡΡΡΠ΅Π½ΠΈΠ΅ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ ΠΈ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΠ΅ ΡΡΠ΅ΠΏΠ΅Π½ΠΈ ΠΈΡΠ΅ΠΌΠΈΠΈ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΠΎΠ²Π°Π»ΠΈ ΡΠ»ΡΡΡΠ΅Π½ΠΈΡ ΠΌΠΈΠΊΡΠΎΡΠΈΡΠΊΡΠ»ΡΡΠΈΠΈ ΠΏΠΎ Π΄Π°Π½Π½ΡΠΌ ΡΡΠ΅Ρ
ΡΠ°Π·Π½ΠΎΠΉ ΡΡΠΈΠ½ΡΠΈΠ³ΡΠ°ΡΠΈΠΈ.ΠΡΠ²ΠΎΠ΄Ρ.1. Π Π΅Π²Π°ΡΠΊΡΠ»ΡΡΠΈΠ·Π°ΡΠΈΡ Π½ΠΈΠΆΠ½ΠΈΡ
ΠΊΠΎΠ½Π΅ΡΠ½ΠΎΡΡΠ΅ΠΉ Ρ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² Ρ ΡΡΠΎΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ Π½Π°ΡΡΡΠ΅Π½ΠΈΡΠΌΠΈ ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΡΠΌ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ Π»Π΅ΡΠ΅Π½ΠΈΡ Π΄Π°Π½Π½ΠΎΠΉ ΠΏΠ°ΡΠΎΠ»ΠΎΠ³ΠΈΠΈ. ΠΠΎΡΡΠΎΠΌΡ Π²ΡΠ΅ ΠΏΠ°ΡΠΈΠ΅Π½ΡΡ Ρ Ρ
ΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΈΡΠ΅ΠΌΠΈΠ΅ΠΉ, ΡΠ³ΡΠΎΠΆΠ°ΡΡΠ΅ΠΉ ΠΏΠΎΡΠ΅ΡΠ΅ΠΉ ΠΊΠΎΠ½Π΅ΡΠ½ΠΎΡΡΠΈ, Π΄ΠΎΠ»ΠΆΠ½Ρ Π±ΡΡΡ ΡΠ°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ ΠΊΠ°ΠΊ ΠΊΠ°Π½Π΄ΠΈΠ΄Π°ΡΡ Π΄Π»Ρ ΡΠ΅Π²Π°ΡΠΊΡΠ»ΡΡΠΈΠ·Π°ΡΠΈΠΈ.2. ΠΡΠΈ ΠΏΠΎΡΠ°ΠΆΠ΅Π½ΠΈΠΈ Π°ΡΡΠ΅ΡΠΈΠΉ Π³ΠΎΠ»Π΅Π½ΠΈ ΠΈΠ»ΠΈ ΠΊΠΎΡΠΎΡΠΊΠΈΡ
ΠΎΠΊΠΊΠ»ΡΠ΄ΠΈΡΡΡΡΠΈΡ
ΠΈΠ»ΠΈ ΡΡΠ΅Π½ΠΎΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠΎΡΠ°ΠΆΠ΅Π½ΠΈΡΡ
ΠΌΠ°Π³ΠΈΡΡΡΠ°Π»ΡΠ½ΡΡ
Π°ΡΡΠ΅ΡΠΈΠΉ ΡΠ°ΠΊΠΈΠ΅ ΠΏΠ°ΡΠΈΠ΅Π½ΡΡ Π΄ΠΎΠ»ΠΆΠ½Ρ Π±ΡΡΡ ΠΎΠ±ΡΡΠΆΠ΄Π΅Π½Ρ ΡΠΎΠ²ΠΌΠ΅ΡΡΠ½ΠΎ ΡΠΎ ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΡΡΠ°ΠΌΠΈ ΠΏΠΎ ΡΠ΅Π½ΡΠ³Π΅Π½ΡΠ½Π΄ΠΎΠ²Π°ΡΠΊΡΠ»ΡΡΠ½ΠΎΠΉ Ρ
ΠΈΡΡΡΠ³ΠΈΠΈ Π½Π° ΠΏΡΠ΅Π΄ΠΌΠ΅Ρ ΡΠ½Π΄ΠΎΠ²Π°ΡΠΊΡΠ»ΡΡΠ½ΠΎΠ³ΠΎ Π»Π΅ΡΠ΅Π½ΠΈΡ ΠΈΠ»ΠΈ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΈΡ Π²ΠΌΠ΅ΡΠ°ΡΠ΅Π»ΡΡΡΠ²Π° ΡΠΎΠ²ΠΌΠ΅ΡΡΠ½ΠΎ.3. ΠΠΈΠ±ΡΠΈΠ΄Π½ΡΠΉ Π»ΡΡΠ΅Π²ΠΎΠΉ ΠΌΠ΅ΡΠΎΠ΄ (ΡΡΠ΅Ρ
ΡΠ°Π·Π½Π°Ρ ΡΡΠΈΠ½ΡΠΈΠ³ΡΠ°ΡΠΈΡ ΠΈ ΠΎΠ΄Π½ΠΎΡΠΎΡΠΎΠ½Π½Π°Ρ ΡΠΌΠΈΡΡΠΈΠΎΠ½Π½Π°Ρ ΠΊΠΎΠΌΠΏΡΡΡΠ΅ΡΠ½Π°Ρ ΡΠΎΠΌΠΎΠ³ΡΠ°ΡΠΈΡ, ΡΠΎΠ²ΠΌΠ΅ΡΠ΅Π½Π½Π°Ρ Ρ ΡΠ΅Π½ΡΠ³Π΅Π½ΠΎΠ²ΡΠΊΠΎΠΉ ΠΊΠΎΠΌΠΏΡΡΡΠ΅ΡΠ½ΠΎΠΉ Π°Π½Π³ΠΈΠΎΠ³ΡΠ°ΡΠΈΠ΅ΠΉ) ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΎΠ±ΡΠ΅ΠΊΡΠΈΠ²Π½ΡΠΌ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ, ΠΎΡΠΎΠ±ΡΠ°ΠΆΠ°ΡΡΠΈΠΌ ΡΠΎΡΡΠΎΡΠ½ΠΈΠ΅ ΠΏΠ΅ΡΠΈΡΠ΅ΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΊΡΠΎΠ²ΠΎΠΎΠ±ΡΠ°ΡΠ΅Π½ΠΈΡ ΠΈ ΠΌΠΈΠΊΡΠΎΡΠΈΡΠΊΡΠ»ΡΡΠΈΠΈ, ΠΈ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΠΎΠ±ΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎ ΠΎΡΠ΅Π½ΠΈΡΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Π½ΠΎΠ³ΠΎ Π»Π΅ΡΠ΅Π½ΠΈΡ
ΠΠ΅ΡΠ΅Π½ΠΈΠ΅ Π±ΠΎΠ»ΡΠ½ΡΡ Ρ ΡΡΠΎΠΌΠ±ΠΎΠ·Π°ΠΌΠΈ Π°ΡΡΠ΅ΡΠΈΠΉ Π½ΠΈΠΆΠ½ΠΈΡ ΠΊΠΎΠ½Π΅ΡΠ½ΠΎΡΡΠ΅ΠΉ ΠΈ ΠΊΠΎΡΠΎΠ½Π°Π²ΠΈΡΡΡΠ½ΠΎΠΉ ΠΈΠ½ΡΠ΅ΠΊΡΠΈΠ΅ΠΉ
The course of severe coronavirus infection is accompanied by hypercoagulability with micro- and macroangiopathy, which may be the cause of arterial and venous thrombosis. In March, 2021 β May 2021, 14 patients with COVID-19 and acute ischemia of the lower extremities due to arterial thrombosis were operated in the Infectious Pavilion of the N.V. Sklifosovsky Research Institute for Emergency Medicine. Retrombosis in the immediate postoperative period developed in 4 patients (26.7%). The amputation at the level of the thigh was performed in 2 patients (13.3%) due to the development of ischemic gangrene. The mortality was 71.4%, 10 patients died. The main cause of death was the progression of multiple organ failure in the course of severe viral-bacterial pneumonia. The best results were obtained with a combination of open surgery and endovascular technique, performing hybrid operations.Π’Π΅ΡΠ΅Π½ΠΈΠ΅ ΠΊΠΎΡΠΎΠ½Π°Π²ΠΈΡΡΡΠ½ΠΎΠΉ ΠΈΠ½ΡΠ΅ΠΊΡΠΈΠΈ Π² ΡΡΠΆΠ΅Π»ΠΎΠΉ ΡΠΎΡΠΌΠ΅ ΡΠΎΠΏΡΠΎΠ²ΠΎΠΆΠ΄Π°Π΅ΡΡΡ Π³ΠΈΠΏΠ΅ΡΠΊΠΎΠ°Π³ΡΠ»ΡΡΠΈΠ΅ΠΉ Ρ ΠΌΠΈΠΊΡΠΎ- ΠΈ ΠΌΠ°ΠΊΡΠΎΠ°Π½Π³ΠΈΠΎΠΏΠ°ΡΠΈΠ΅ΠΉ, ΡΡΠΎ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΠΏΡΠΈΡΠΈΠ½ΠΎΠΉ ΡΠ°Π·Π²ΠΈΡΠΈΡ Π°ΡΡΠ΅ΡΠΈΠ°Π»ΡΠ½ΡΡ
ΠΈ Π²Π΅Π½ΠΎΠ·Π½ΡΡ
ΡΡΠΎΠΌΠ±ΠΎΠ·ΠΎΠ². ΠΠ° ΠΏΠ΅ΡΠΈΠΎΠ΄ Ρ ΠΌΠ°ΡΡΠ° ΠΏΠΎ ΠΌΠ°ΠΉ 2021 Π³ΠΎΠ΄Π° Π² ΠΈΠ½ΡΠ΅ΠΊΡΠΈΠΎΠ½Π½ΡΠΉ ΠΊΠΎΡΠΏΡΡ ΠΠΠ Π‘Π ΠΈΠΌ. Π.Π. Π‘ΠΊΠ»ΠΈΡΠΎΡΠΎΠ²ΡΠΊΠΎΠ³ΠΎ ΠΏΠΎΡΡΡΠΏΠΈΠ»ΠΈ ΠΈ Π±ΡΠ»ΠΈ ΠΎΠΏΠ΅ΡΠΈΡΠΎΠ²Π°Π½Ρ 14 ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² Ρ ΠΊΠΎΡΠΎΠ½Π°Π²ΠΈΡΡΡΠ½ΠΎΠΉ ΠΈΠ½ΡΠ΅ΠΊΡΠΈΠ΅ΠΉ, Π²ΡΠ·Π²Π°Π½Π½ΠΎΠΉ COVID-19 ΠΈ Ρ ΠΎΡΡΡΠΎΠΉ ΠΈΡΠ΅ΠΌΠΈΠ΅ΠΉ Π½ΠΈΠΆΠ½ΠΈΡ
ΠΊΠΎΠ½Π΅ΡΠ½ΠΎΡΡΠ΅ΠΉ Π²ΡΠ»Π΅Π΄ΡΡΠ²ΠΈΠ΅ ΡΡΠΎΠΌΠ±ΠΎΠ·Π° Π°ΡΡΠ΅ΡΠΈΠΉ. Π Π΅ΡΡΠΎΠΌΠ±ΠΎΠ· Π² Π±Π»ΠΈΠΆΠ°ΠΉΡΠ΅ΠΌ ΠΏΠΎΡΠ»Π΅ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΌ ΠΏΠ΅ΡΠΈΠΎΠ΄Π΅ ΡΠ°Π·Π²ΠΈΠ»ΡΡ Ρ 4 Π±ΠΎΠ»ΡΠ½ΡΡ
(26,7%). Π£ 2 ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² (13,3%) Π±ΡΠ»Π° Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π° Π°ΠΌΠΏΡΡΠ°ΡΠΈΡ Π½Π° ΡΡΠΎΠ²Π½Π΅ Π±Π΅Π΄ΡΠ° Π² ΡΠ²ΡΠ·ΠΈ Ρ ΡΠ°Π·Π²ΠΈΡΠΈΠ΅ΠΌ ΠΈΡΠ΅ΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ Π³Π°Π½Π³ΡΠ΅Π½Ρ. ΠΠ΅ΡΠ°Π»ΡΠ½ΠΎΡΡΡ ΡΠΎΡΡΠ°Π²ΠΈΠ»Π° 71,4%, ΡΠΌΠ΅ΡΠ»ΠΈ 10 ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ². ΠΡΠ½ΠΎΠ²Π½ΠΎΠΉ ΠΏΡΠΈΡΠΈΠ½ΠΎΠΉ ΡΠΌΠ΅ΡΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΈΡΡ
ΠΎΠ΄Π° ΡΠ²ΠΈΠ»ΠΈΡΡ ΠΏΡΠΎΠ³ΡΠ΅ΡΡΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΠΎΠ»ΠΈΠΎΡΠ³Π°Π½Π½ΠΎΠΉ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎΡΡΠΈ Π½Π° ΡΠΎΠ½Π΅ ΡΡΠΆΠ΅Π»ΠΎΠΉ Π²ΠΈΡΡΡΠ½ΠΎ-Π±Π°ΠΊΡΠ΅ΡΠΈΠ°Π»ΡΠ½ΠΎΠΉ ΠΏΠ½Π΅Π²ΠΌΠΎΠ½ΠΈΠΈ. ΠΡΡΡΠΈΠ΅ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ Π±ΡΠ»ΠΈ ΠΏΠΎΠ»ΡΡΠ΅Π½Ρ ΠΏΡΠΈ ΡΠΎΡΠ΅ΡΠ°Π½ΠΈΠΈ ΠΎΡΠΊΡΡΡΠΎΠΉ Ρ
ΠΈΡΡΡΠ³ΠΈΠΈ ΠΈ ΡΠ½Π΄ΠΎΠ²Π°ΡΠΊΡΠ»ΡΡΠ½ΠΎΠΉ ΡΠ΅Ρ
Π½ΠΈΠΊΠΈ, Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ Π³ΠΈΠ±ΡΠΈΠ΄Π½ΡΡ
ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΉ
Effect of Cu addition on microstructure and impact toughness in the simulated coarse-grained heat-affected zone of high-strength low-alloy steels
The effects of Cu content on microstructure and impact toughness in the simulated coarse-grained heat-affected zone (CGHAZ) of high-strength low-alloy steels were investigated. It has been observed that the microstructure in the simulated CGHAZ of Cu-free steel is dominated by a small proportion of acicular ferrite and predominantly bainite with martensiteβaustenite constituent. Whereas, in the 0.45 and 1.01% Cu-containing steels, the acicular ferrite increased significantly due to the effective nucleation on intragranular inclusions with outer layer of MnS and CuS. The formation of acicular ferrite is attributed to superior high heat-affected zone impact toughness in the 0.45% Cu-containing steel. Furthermore, the increasing martensiteβaustenite constituent and Ξ΅-Cu precipitates in the simulated CGHAZ of 1.01% Cu-containing steel caused degradation in impact toughness
On a Theory of Superfluidity of Asymmetric Nuclear Matter
Influence of asymmetry on superfluidity of nuclear matter with
triplet-singlet pairing of nucleons (in spin and isospin spaces) is considered
within the framework of a Fermi-liquid theory. Solutions of self-consistent
equations for the critical temperature and the energy gap at T=0 are obtained.
It is shown, that the backward influence of pairing correlations through the
normal distribution functions of nucleons leads to the qualitative change:
instead of two-valued behavior the energy gap has universal one-valued
behavior. At T=0 superfluidity arises as a result of a first order phase
transition in density.Comment: The extended version, accepted for publication in Phys. Rev. C as a
Rapid Communicatio
Phases of asymmetric nuclear matter with broken space symmetries
Isoscalar Cooper pairing in isospin asymmetric nuclear matter occurs between
states populating two distinct Fermi surfaces, each for neutrons and protons.
The transition from a BCS-like to the normal (unpaired) state, as the isospin
asymmetry is increased, is intervened by superconducting phases which
spontaneously break translational and rotational symmetries. One possibility is
the formation of a condensate with a periodic crystallinelike structure where
Cooper pairs carry net momentum (the nuclear
Larkin-Ovchinnikov-Fulde-Ferrell-phase). Alternatively, perturbations of the
Fermi surfaces away from spherical symmetry allow for minima in the condensate
free energy which correspond to a states with quadrupole deformations of Fermi
surfaces and zero momentum of the Cooper pairs. In a combined treatment of
these phases we show that, although the Cooper pairing with finite momentum
might arise as a local minimum, the lowest energy state features are deformed
Fermi surfaces and Cooper pairs with vanishing total momentum.Comment: 22 pages, 6 figures, RevTex; v2: matches published version; v3:
changes in the frontmatter, content unchange
- β¦