52 research outputs found
Test of exotic scalar and tensor interactions in K_e3 decay using stopped positive kaons
The form factors of the decay K+ --> pi0 e+ nu (K_e3) have been determined
from the comparison of the experimental and Monte Carlo Dalitz distributions
containing about 10^5 K_e3 events. The following values of the parameters were
obtained: lambda_+ = 0.0278 +- 0.0017(stat) +- 0.0015(syst), f_S/f_+(0) =
0.0040 +- 0.0160(stat) +- 0.0067(syst) and f_T/f_+(0) = 0.019 +- 0.080(stat) +-
0.038(syst). Both scalar f_S and tensor f_T form factors are consistent with
the Standard Model predictions of zero values.Comment: 10 pages, 5 figures, contributed to the proceedings of NANP
Conference, Dubna, June 19-23, 200
Spectroscopic Evidence for the Localization of Skyrmions near Nu=1 as T->0
Optically pumped nuclear magnetic resonance measurements of Ga-71 spectra
were carried out in an n-doped GaAs/Al0.1Ga0.9As multiple quantum well sample
near the integer quantum Hall ground state Nu=1. As the temperature is lowered
(down to T~0.3 K), a ``tilted plateau'' emerges in the Knight shift data, which
is a novel experimental signature of quasiparticle localization. The dependence
of the spectra on both T and Nu suggests that the localization is a collective
process. The frozen limit spectra appear to rule out a 2D lattice of
conventional skyrmions.Comment: 4 pages (REVTEX), 5 eps figures embedded in text, published versio
Dynamic nuclear polarization and spin-diffusion in non-conducting solids
There has been much renewed interest in dynamic nuclear polarization (DNP),
particularly in the context of solid state biomolecular NMR and more recently
dissolution DNP techniques for liquids. This paper reviews the role of spin
diffusion in polarizing nuclear spins and discusses the role of the spin
diffusion barrier, before going on to discuss some recent results.Comment: submitted to Applied Magnetic Resonance. The article should appear in
a special issue that is being published in connection with the DNP Symposium
help in Nottingham in August 200
Hamiltonian theory of gaps, masses and polarization in quantum Hall states: full disclosure
I furnish details of the hamiltonian theory of the FQHE developed with Murthy
for the infrared, which I subsequently extended to all distances and apply it
to Jain fractions \nu = p/(2ps + 1). The explicit operator description in terms
of the CF allows one to answer quantitative and qualitative issues, some of
which cannot even be posed otherwise. I compute activation gaps for several
potentials, exhibit their particle hole symmetry, the profiles of charge
density in states with a quasiparticles or hole, (all in closed form) and
compare to results from trial wavefunctions and exact diagonalization. The
Hartree-Fock approximation is used since much of the nonperturbative physics is
built in at tree level. I compare the gaps to experiment and comment on the
rough equality of normalized masses near half and quarter filling. I compute
the critical fields at which the Hall system will jump from one quantized value
of polarization to another, and the polarization and relaxation rates for half
filling as a function of temperature and propose a Korringa like law. After
providing some plausibility arguments, I explore the possibility of describing
several magnetic phenomena in dirty systems with an effective potential, by
extracting a free parameter describing the potential from one data point and
then using it to predict all the others from that sample. This works to the
accuracy typical of this theory (10 -20 percent). I explain why the CF behaves
like free particle in some magnetic experiments when it is not, what exactly
the CF is made of, what one means by its dipole moment, and how the comparison
of theory to experiment must be modified to fit the peculiarities of the
quantized Hall problem
Π Π΅ΡΡΠΎΠΏΠ΅ΡΠΈΡΠΎΠ½Π΅ΠΎΡΠΊΠΎΠΏΠΈΡΠ΅ΡΠΊΠΈΠΉ Π΄ΠΎΡΡΡΠΏ ΠΏΡΠΈ ΠΎΡΠ³Π°Π½ΠΎΡΠΎΡ ΡΠ°Π½ΡΡΡΠ΅ΠΌ Π»Π΅ΡΠ΅Π½ΠΈΠΈ ΠΏΠΎΡΠ΅ΡΠ½ΠΎ-ΠΊΠ»Π΅ΡΠΎΡΠ½ΠΎΠ³ΠΎ ΡΠ°ΠΊΠ°
Background. Renal cell carcinoma is one of the most common urologic cancers. Due to development of modern diagnostic methods, kidney tumors are often diagnosed at early stages (cT1a-T1b). The golden standard of treatment of localized renal cell carcinoma is tumor resection. In retroperitoneoscopic access, the time to artery access is decreased, the risk of intra- and postoperative complications is reduced. Retroperitoneal access is preferable for tumors located on the lateral or posterior kidney surface.Aim. To analyze the results of treatment of patients after retroperitoneoscopic kidney resection.Materials and methods. Between 2018 and 2021, at the A.F. Tsyb Medical Radiological Research Center - branch of the National Medical Research Radiological Center 47 retroperitoneoscopic kidney resections were performed (29 (61.7 %) in men, 18 (38.3 %) in women) due to stage cT1aN0M0 renal cell carcinoma. Retrospective analysis of demographic data, comorbid status, tumor characteristics, operative time, blood loss volume, frequency and severity of complications per the Clavien-Dindo classification was performed. Complexity of resection was evaluated using the R.E.N.A.L. scale.Results. Mean patient age was 63 (38-79) years, body mass index was 29.9 (22-39) kg/m2. Tumor of the left kidney was diagnosed in 24 (51.0 %) cases, of the right kidney - in 22 (46.8 %) cases, bilateral lesions - in 1 (2.2 %) case. Mean tumor size was 22.4 (11-39) mm. Resection had low complexity in 35 (74.5 %) cases, intermediate complexity in 12 (25.5 %) cases. Mean operative time was 156 (80-280) minutes, mean warm ischemia time was 19 (7-32) minutes, number of resections with zero ischemia was 15 (31.9 %), mean blood loss volume was 53 (10-300) mL, number of resections without renal parenchyma suturing was 10 (21.3 %). Mean hospitalization time after surgery was 5 days. Postoperative complications were observed in 4 (8.5 %) cases: bleeding (severity grade II per the Clavien-Dindo classification) in 1 (2.1 %) case, postoperative infectious complications (severity grade II) - in 2 (4.2 %) cases, subcutaneous hematoma (severity grade I) - in 1 (2.1 %) case.Conclusion. Retroperitoneoscopic access is effective and safe. This is confirmed by low frequency and severity of postoperative complications. This access allows to reduce hospitalization time and pain management medication which accelerates patient mobilization and recovery. Comparative analysis shows that retroperitoneoscopic kidney resection has the same effectiveness as laparoscopic resection.ΠΠ²Π΅Π΄Π΅Π½ΠΈΠ΅. ΠΠΎΡΠ΅ΡΠ½ΠΎ-ΠΊΠ»Π΅ΡΠΎΡΠ½ΡΠΉ ΡΠ°ΠΊ - ΠΎΠ΄Π½ΠΎ ΠΈΠ· Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½Π΅Π½Π½ΡΡ
ΠΎΠ½ΠΊΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ. ΠΠ»Π°Π³ΠΎΠ΄Π°ΡΡ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΡΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΡΡ
ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ² Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠΈ ΠΎΠΏΡΡ
ΠΎΠ»ΠΈ ΠΏΠΎΡΠ΅ΠΊ ΡΠ°ΡΡΠΎ Π²ΡΡΠ²Π»ΡΡΡΡΡ Π½Π° ΡΠ°Π½Π½Π΅ΠΉ ΡΡΠ°Π΄ΠΈΠΈ (cT1a-T1b). Β«ΠΠΎΠ»ΠΎΡΡΠΌ ΡΡΠ°Π½Π΄Π°ΡΡΠΎΠΌΒ» Π»Π΅ΡΠ΅Π½ΠΈΡ Π»ΠΎΠΊΠ°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ ΠΏΠΎΡΠ΅ΡΠ½ΠΎ-ΠΊΠ»Π΅ΡΠΎΡΠ½ΠΎΠ³ΠΎ ΡΠ°ΠΊΠ° ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠ΅Π·Π΅ΠΊΡΠΈΡ ΠΏΠΎΡΠΊΠΈ. ΠΡΠΈ ΡΠ΅ΡΡΠΎΠΏΠ΅ΡΠΈΡΠΎΠ½Π΅ΠΎΡΠΊΠΎΠΏΠΈΡΠ΅ΡΠΊΠΎΠΌ Π΄ΠΎΡΡΡΠΏΠ΅ ΡΠΌΠ΅Π½ΡΡΠ°Π΅ΡΡΡ Π²ΡΠ΅ΠΌΡ Π΄ΠΎΡΡΡΠΏΠ° ΠΊ Π°ΡΡΠ΅ΡΠΈΠΈ, ΡΠ½ΠΈΠΆΠ°Π΅ΡΡΡ ΡΠΈΡΠΊ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΠΈΠ½ΡΡΠ°- ΠΈ ΠΏΠΎΡΠ»Π΅ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΠΉ. ΠΠ°Π±ΡΡΡΠΈΠ½Π½ΡΠΉ Π΄ΠΎΡΡΡΠΏ ΠΏΡΠ΅Π΄ΠΏΠΎΡΡΠΈΡΠ΅Π»Π΅Π½ ΠΏΡΠΈ ΡΠ°ΡΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠΈ ΠΎΠΏΡΡ
ΠΎΠ»ΠΈ ΠΏΠΎ Π»Π°ΡΠ΅ΡΠ°Π»ΡΠ½ΠΎΠΉ ΠΈΠ»ΠΈ ΠΏΠΎ Π·Π°Π΄Π½Π΅ΠΉ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ ΠΏΠΎΡΠΊΠΈ.Π¦Π΅Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ - ΠΏΡΠΎΠ°Π½Π°Π»ΠΈΠ·ΠΈΡΠΎΠ²Π°ΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ Π»Π΅ΡΠ΅Π½ΠΈΡ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² ΠΏΠΎΡΠ»Π΅ ΡΠ΅ΡΡΠΎΠΏΠ΅ΡΠΈΡΠΎΠ½Π΅ΠΎΡΠΊΠΎΠΏΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ΅Π·Π΅ΠΊΡΠΈΠΈ ΠΏΠΎΡΠΊΠΈ.ΠΠ°ΡΠ΅ΡΠΈΠ°Π»Ρ ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. Π‘ 2018 ΠΏΠΎ 2021 Π³. Π½Π° Π±Π°Π·Π΅ ΠΠ ΠΠ¦ ΠΈΠΌ. Π.Π€. Π¦ΡΠ±Π° - ΡΠΈΠ»ΠΈΠ°Π»Π° ΠΠΠΠ¦ ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠ³ΠΈΠΈ Π±ΡΠ»ΠΎ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΎ 47 ΡΠ΅ΡΡΠΎΠΏΠ΅ΡΠΈΡΠΎΠ½Π΅ΠΎΡΠΊΠΎΠΏΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ΅Π·Π΅ΠΊΡΠΈΠΉ ΠΏΠΎΡΠΊΠΈ (29 (61,7 %) ΠΌΡΠΆΡΠΈΠ½Π°ΠΌ, 18 (38,3 %) ΠΆΠ΅Π½ΡΠΈΠ½Π°ΠΌ) ΠΏΠΎ ΠΏΠΎΠ²ΠΎΠ΄Ρ ΠΏΠΎΡΠ΅ΡΠ½ΠΎ-ΠΊΠ»Π΅ΡΠΎΡΠ½ΠΎΠ³ΠΎ ΡΠ°ΠΊΠ° Ρ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΡΠ°Π΄ΠΈΠ΅ΠΉ cT1aN0M0. ΠΡΠΎΠ²Π΅Π΄Π΅Π½ ΡΠ΅ΡΡΠΎΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΡΠΉ Π°Π½Π°Π»ΠΈΠ· Π΄Π΅ΠΌΠΎΠ³ΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΡ
Π΄Π°Π½Π½ΡΡ
, ΠΊΠΎΠΌΠΎΡΠ±ΠΈΠ΄Π½ΠΎΠ³ΠΎ ΡΡΠ°ΡΡΡΠ°, Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ ΠΎΠΏΡΡ
ΠΎΠ»ΠΈ, Π΄Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΠΈ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΈ, ΠΎΠ±ΡΠ΅ΠΌΠ° ΠΊΡΠΎΠ²ΠΎΠΏΠΎΡΠ΅ΡΠΈ, ΡΠ°ΡΡΠΎΡΡ ΠΈ ΡΡΠΆΠ΅ΡΡΠΈ ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΠΉ ΠΏΠΎ ΠΊΠ»Π°ΡΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ Clavien-Dindo. Π‘Π»ΠΎΠΆΠ½ΠΎΡΡΡ ΡΠ΅Π·Π΅ΠΊΡΠΈΠΈ ΠΎΡΠ΅Π½ΠΈΠ²Π°Π»ΠΈ ΠΏΠΎ ΡΠΊΠ°Π»Π΅ R.E.N.A.L.Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. Π‘ΡΠ΅Π΄Π½ΠΈΠΉ Π²ΠΎΠ·ΡΠ°ΡΡ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² ΡΠΎΡΡΠ°Π²ΠΈΠ» 63 (38-79) Π³ΠΎΠ΄Π°, ΠΈΠ½Π΄Π΅ΠΊΡ ΠΌΠ°ΡΡΡ ΡΠ΅Π»Π° - 29,9 (22-39) ΠΊΠ³/ΠΌ2. ΠΠΏΡΡ
ΠΎΠ»Ρ Π»Π΅Π²ΠΎΠΉ ΠΏΠΎΡΠΊΠΈ ΠΈΠΌΠ΅Π»Π° ΠΌΠ΅ΡΡΠΎ Π² 24 (51,0 %) ΡΠ»ΡΡΠ°ΡΡ
, ΠΏΡΠ°Π²ΠΎΠΉ - Π² 22 (46,8 %), Π΄Π²ΡΡΡΠΎΡΠΎΠ½Π½Π΅Π΅ ΠΏΠΎΡΠ°ΠΆΠ΅Π½ΠΈΠ΅ - Π² 1 (2,2 %). Π‘ΡΠ΅Π΄Π½ΠΈΠΉ ΡΠ°Π·ΠΌΠ΅Ρ ΠΎΠΏΡΡ
ΠΎΠ»ΠΈ ΡΠΎΡΡΠ°Π²ΠΈΠ» 22,4 (11-39) ΠΌΠΌ. ΠΠΎΠ»ΠΈΡΠ΅ΡΡΠ²ΠΎ ΡΠ΅Π·Π΅ΠΊΡΠΈΠΉ Π½ΠΈΠ·ΠΊΠΎΠΉ ΡΠ»ΠΎΠΆΠ½ΠΎΡΡΠΈ Π±ΡΠ»ΠΎ Π² 35 (74,5 %) ΡΠ»ΡΡΠ°ΡΡ
, ΡΠΌΠ΅ΡΠ΅Π½Π½ΠΎΠΉ ΡΠ»ΠΎΠΆΠ½ΠΎΡΡΠΈ - Π² 12 (25,5 %). Π‘ΡΠ΅Π΄Π½ΡΡ ΠΏΡΠΎΠ΄ΠΎΠ»ΠΆΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΈ ΡΠΎΡΡΠ°Π²ΠΈΠ»Π° 156 (80-280) ΠΌΠΈΠ½, ΡΡΠ΅Π΄Π½Π΅Π΅ Π²ΡΠ΅ΠΌΡ ΡΠ΅ΠΏΠ»ΠΎΠ²ΠΎΠΉ ΠΈΡΠ΅ΠΌΠΈΠΈ - 19 (7-32) ΠΌΠΈΠ½, ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²ΠΎ ΡΠ΅Π·Π΅ΠΊΡΠΈΠΉ Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ
Β«Π½ΡΠ»Π΅Π²ΠΎΠΉΒ» ΠΈΡΠ΅ΠΌΠΈΠΈ - 15 (31,9 %), ΡΡΠ΅Π΄Π½ΠΈΠΉ ΠΎΠ±ΡΠ΅ΠΌ ΠΊΡΠΎΠ²ΠΎΠΏΠΎΡΠ΅ΡΠΈ - 53 (10-300) ΠΌΠ», ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²ΠΎ ΡΠ΅Π·Π΅ΠΊΡΠΈΠΉ Π±Π΅Π· ΡΡΠΈΠ²Π°Π½ΠΈΡ ΠΏΠΎΡΠ΅ΡΠ½ΠΎΠΉ ΠΏΠ°ΡΠ΅Π½Ρ
ΠΈΠΌΡ - 10 (21,3 %). Π‘ΡΠ΅Π΄Π½ΡΡ ΠΏΡΠΎΠ΄ΠΎΠ»ΠΆΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡ ΠΏΡΠ΅Π±ΡΠ²Π°Π½ΠΈΡ Π² ΡΡΠ°ΡΠΈΠΎΠ½Π°ΡΠ΅ ΠΏΠΎΡΠ»Π΅ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΈ - 5 Π΄Π½Π΅ΠΉ. ΠΠΎΡΠ»Π΅ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΡΠ΅ ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΡ Π·Π°ΡΠ΅Π³ΠΈΡΡΡΠΈΡΠΎΠ²Π°Π½Ρ Π² 4 (8,5 %) ΡΠ»ΡΡΠ°ΡΡ
: ΠΊΡΠΎΠ²ΠΎΡΠ΅ΡΠ΅Π½ΠΈΠ΅ (II ΡΡΠ΅ΠΏΠ΅Π½Ρ ΡΡΠΆΠ΅ΡΡΠΈ ΠΏΠΎ ΠΊΠ»Π°ΡΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ Clavien-Dindo) - Π² 1 (2,1 %), ΠΏΠΎΡΠ»Π΅ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΡΠ΅ ΠΈΠ½ΡΠ΅ΠΊΡΠΈΠΎΠ½Π½ΡΠ΅ ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΡ (II ΡΡΠ΅ΠΏΠ΅Π½Ρ ΡΡΠΆΠ΅ΡΡΠΈ) - Π² 2 (4,2 %), ΠΏΠΎΠ΄ΠΊΠΎΠΆΠ½Π°Ρ Π³Π΅ΠΌΠ°ΡΠΎΠΌΠ° (I ΡΡΠ΅ΠΏΠ΅Π½Ρ ΡΡΠΆΠ΅ΡΡΠΈ) - Π² 1 (2,1 %).ΠΠ°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅. Π Π΅ΡΡΠΎΠΏΠ΅ΡΠΈΡΠΎΠ½Π΅ΠΎΡΠΊΠΎΠΏΠΈΡΠ΅ΡΠΊΠΈΠΉ Π΄ΠΎΡΡΡΠΏ ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΡΠΌ ΠΈ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΡΠΌ. ΠΠ± ΡΡΠΎΠΌ ΡΠ²ΠΈΠ΄Π΅ΡΠ΅Π»ΡΡΡΠ²ΡΡΡ Π½ΠΈΠ·ΠΊΠΈΠ΅ ΡΠ°ΡΡΠΎΡΠ° ΠΈ ΡΡΠ΅ΠΏΠ΅Π½Ρ ΡΡΠΆΠ΅ΡΡΠΈ ΠΏΠΎΡΠ»Π΅ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΠΉ. ΠΠ°Π½Π½ΡΠΉ Π΄ΠΎΡΡΡΠΏ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΡΠΌΠ΅Π½ΡΡΠΈΡΡ ΠΏΡΠΎΠ΄ΠΎΠ»ΠΆΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡ Π³ΠΎΡΠΏΠΈΡΠ°Π»ΠΈΠ·Π°ΡΠΈΠΈ ΠΈ ΡΠ½ΠΈΠ·ΠΈΡΡ ΠΏΠΎΡΡΠ΅Π±Π½ΠΎΡΡΡ Π² ΠΎΠ±Π΅Π·Π±ΠΎΠ»ΠΈΠ²Π°Π½ΠΈΠΈ, ΡΡΠΎ ΡΡΠΊΠΎΡΡΠ΅Ρ Π°ΠΊΡΠΈΠ²ΠΈΠ·Π°ΡΠΈΡ ΠΈ Π²ΠΎΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΠ΅ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ². ΠΡΠΈ ΡΡΠ°Π²Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎΠΌ Π°Π½Π°Π»ΠΈΠ·Π΅ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΡΠ΅ΡΡΠΎΠΏΠ΅ΡΠΈΡΠΎΠ½Π΅ΠΎΡΠΊΠΎΠΏΠΈΡΠ΅ΡΠΊΠ°Ρ ΡΠ΅Π·Π΅ΠΊΡΠΈΡ ΠΏΠΎΡΠΊΠΈ Π½Π΅ ΡΡΡΡΠΏΠ°Π΅Ρ ΠΏΠΎ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ Π»Π°ΠΏΠ°ΡΠΎΡΠΊΠΎΠΏΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ΅Π·Π΅ΠΊΡΠΈΠΈ
Morphino: A nature-inspired tool for the design of shape-changing interfaces
The HCI community has a strong and growing interest in shape-changing interfaces (SCIs) that can offer dynamic af- fordance. In this context, there is an increasing need for HCI researchers and designers to form close relationships with dis- ciplines such as robotics and material science in order to be able to truly harness the state-of-the-art in morphing technolo- gies. To help these synergies arise, we present Morphino: a card-based toolkit to inspire shape-changing interface designs. Our cards bring together a collection of morphing mechanisms already established in the multidisciplinary literature and illustrate them through familiar examples from nature. We begin by detailing the design of the cards, based on a review of shape-change in nature; then, report on a series of design sessions conducted to demonstrate their usefulness in generating new ideas and in helping end-users gain a better understanding of the possibilities for shape-changing materials
Π Π΅Π΄ΠΊΠ°Ρ Π·Π»ΠΎΠΊΠ°ΡΠ΅ΡΡΠ²Π΅Π½Π½Π°Ρ ΠΎΠΏΡΡ ΠΎΠ»Ρ ΠΏΠΎΡΠΊΠΈ β Π»Π΅ΠΉΠΎΠΌΠΈΠΎΡΠ°ΡΠΊΠΎΠΌΠ° ΠΏΠΎΡΠ΅ΡΠ½ΠΎΠΉ Π²Π΅Π½Ρ (ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΈΠΉ ΡΠ»ΡΡΠ°ΠΉ)
Soft tissue sarcomas are a rare group of malignant tumors that develop from different types of connective tissue. One of the histological variants of primary renal sarcoma is renal leiomyosarcoma. Leiomyosarcoma of kidneys can develop from the renal vasculature, renal veins, pelvic muscles, smooth muscle components of the renal capsule. Clinical and radiologic signs of leiomyosarcoma are nonspecific. Diagnosis is based on histological and immunohistochemical studies after surgical intervention. This article presents a clinical case of diagnosis and treatment of leiomyosarcoma of the renal vein.Π‘Π°ΡΠΊΠΎΠΌΡ ΠΌΡΠ³ΠΊΠΈΡ
ΡΠΊΠ°Π½Π΅ΠΉ β ΡΠ΅Π΄ΠΊΠ°Ρ Π³ΡΡΠΏΠΏΠ° Π·Π»ΠΎΠΊΠ°ΡΠ΅ΡΡΠ²Π΅Π½Π½ΡΡ
ΠΎΠΏΡΡ
ΠΎΠ»Π΅ΠΉ, ΡΠ°Π·Π²ΠΈΠ²Π°ΡΡΠΈΡ
ΡΡ ΠΈΠ· ΡΠ°Π·Π½ΡΡ
ΡΠΈΠΏΠΎΠ² ΡΠΎΠ΅Π΄ΠΈΠ½ΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΡΠΊΠ°Π½ΠΈ. ΠΠ΄Π½ΠΈΠΌ ΠΈΠ· Π³ΠΈΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
Π²Π°ΡΠΈΠ°Π½ΡΠΎΠ² ΠΏΠ΅ΡΠ²ΠΈΡΠ½ΠΎΠΉ ΡΠ°ΡΠΊΠΎΠΌΡ ΠΏΠΎΡΠΊΠΈ ΡΠ²Π»ΡΠ΅ΡΡΡ Π»Π΅ΠΉΠΎΠΌΠΈΠΎΡΠ°ΡΠΊΠΎΠΌΠ°. ΠΠ΅ΠΉΠΎΠΌΠΈΠΎΡΠ°ΡΠΊΠΎΠΌΠ° ΠΏΠΎΡΠΊΠΈ ΠΌΠΎΠΆΠ΅Ρ ΡΠ°Π·Π²ΠΈΠ²Π°ΡΡΡΡ ΠΈΠ· ΠΏΠΎΡΠ΅ΡΠ½ΠΎΠΉ ΡΠΎΡΡΠ΄ΠΈΡΡΠΎΠΉ ΡΠ΅ΡΠΈ, ΠΏΠΎΡΠ΅ΡΠ½ΡΡ
Π²Π΅Π½, ΠΌΡΡΡ Π»ΠΎΡ
Π°Π½ΠΊΠΈ, Π³Π»Π°Π΄ΠΊΠΎΠΌΡΡΠ΅ΡΠ½ΡΡ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ² ΠΏΠΎΡΠ΅ΡΠ½ΠΎΠΉ ΠΊΠ°ΠΏΡΡΠ»Ρ. ΠΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈ ΡΠ΅Π½ΡΠ³Π΅Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΏΡΠΈΠ·Π½Π°ΠΊΠΈ Π»Π΅ΠΉΠΎΠΌΠΈΠΎΡΠ°ΡΠΊΠΎΠΌΡ Π½Π΅ΡΠΏΠ΅ΡΠΈΡΠΈΡΠ½Ρ. ΠΡΠ½ΠΎΠ²ΠΎΠΉ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠΈ ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ Π³ΠΈΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΈ ΠΈΠΌΠΌΡΠ½ΠΎΠ³ΠΈΡΡΠΎΡ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΡΠ»Π΅ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΈΡ Ρ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π²ΠΌΠ΅ΡΠ°ΡΠ΅Π»ΡΡΡΠ²Π°. Π Π½Π°ΡΡΠΎΡΡΠ΅ΠΉ ΡΡΠ°ΡΡΠ΅ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΈΠΉ ΡΠ»ΡΡΠ°ΠΉ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠΈ ΠΈ Π»Π΅ΡΠ΅Π½ΠΈΡ Π»Π΅ΠΉΠΎΠΌΠΈΠΎΡΠ°ΡΠΊΠΎΠΌΡ ΠΏΠΎΡΠ΅ΡΠ½ΠΎΠΉ Π²Π΅Π½Ρ
Multiwavelength behaviour of the blazar 3CΒ 279: decade-long study from Ξ³-ray to radio
We report the results of decade-long (2008β2018) Ξ³-ray to 1 GHz radio monitoring of the blazar 3C 279, including GASP/WEBT, Fermi and Swift data, as well as polarimetric and spectroscopic data. The X-ray and Ξ³-ray light curves correlate well, with no delay β³3 h, implying general cospatiality of the emission regions. The Ξ³-rayβoptical fluxβflux relation changes with activity state, ranging from a linear to a more complex dependence. The behaviour of the Stokes parameters at optical and radio wavelengths, including 43 GHz Very Long Baseline Array images, supports either a predominantly helical magnetic field or motion of the radiating plasma along a spiral path. Apparent speeds of emission knots range from 10 to 37c, with the highest values requiring bulk Lorentz factors close to those needed to explain Ξ³-ray variability on very short time-scales. The MgβII emission line flux in the βblueβ and βredβ wings correlates with the optical synchrotron continuum flux density, possibly providing a variable source of seed photons for inverse Compton scattering. In the radio bands, we find progressive delays of the most prominent light-curve maxima with decreasing frequency, as expected from the frequency dependence of the Ο = 1 surface of synchrotron self-absorption. The global maximum in the 86 GHz light curve becomes less prominent at lower frequencies, while a local maximum, appearing in 2014, strengthens toward decreasing frequencies, becoming pronounced at βΌ5 GHz. These tendencies suggest different Doppler boosting of stratified radio-emitting zones in the jet
Multiwavelength behaviour of the blazar 3C 279: Decade-long study from Ξ³ -ray to radio
We report the results of decade-long (2008-2018) Ξ³ -ray to 1 GHz radio monitoring of the blazar 3C 279, including GASP/WEBT, Fermi and Swift data, as well as polarimetric and spectroscopic data. The X-ray and Ξ³ -ray light curves correlate well, with no delay β³ 3 h, implying general cospatiality of the emission regions. The Ξ³ -ray-optical flux-flux relation changes with activity state, ranging from a linear to amore complex dependence. The behaviour of the Stokes parameters at optical and radio wavelengths, including 43 GHz Very Long Baseline Array images, supports either a predominantly helical magnetic field or motion of the radiating plasma along a spiral path. Apparent speeds of emission knots range from 10 to 37c, with the highest values requiring bulk Lorentz factors close to those needed to explain Ξ³ -ray variability on very short time-scales. The MgII emission line flux in the 'blue' and 'red' wings correlates with the optical synchrotron continuum flux density, possibly providing a variable source of seed photons for inverse Compton scattering. In the radio bands, we find progressive delays of the most prominent light-curve maxima with decreasing frequency, as expected from the frequency dependence of the Ο= 1 surface of synchrotron self-absorption. The global maximum in the 86 GHz light curve becomes less prominent at lower frequencies, while a local maximum, appearing in 2014, strengthens toward decreasing frequencies, becoming pronounced at βΌ5 GHz. These tendencies suggest different Doppler boosting of stratified radio-emitting zones in the jet. Β© 2020 The Author(s).We thank the referee for attentive reading and comments that helped to improve presentation of the manuscript. The data collected by the WEBT collaboration are stored in the WEBT archive at the Osservatorio Astrofisico di Torino -INAF (ht tp://www.oato.inaf.it/blazars/webt/); for questions regarding their availability, please contact the WEBT President Massimo Villata([email protected]).TheSt.Petersburg University team acknowledges support from Russian Science Foundation grant 17-12-01029. The research at BU was supported in part by National Science Foundation grant AST-1615796 and NASA Fermi Guest Investigator grants 80NSSC17K0649, 80NSSC19K1504, and 80NSSC19K1505. The PRISM camera at Lowell Observatory was developed by K. Janes et al. at BU and Lowell Observatory, with funding from the NSF, BU, and Lowell Observatory. The emission-line observations made use of the DCT at Lowell Observatory, supported by Discovery Communications, Inc., BU, the University of Maryland, the University of Toledo, and Northern Arizona University. The VLBA is an instrument of the National Radio Astronomy Observatory. The National Radio Astronomy Observatory is a facility of the US NSF, operated under cooperative agreement by Associated Universities, Inc. This research has used data from the UMRAO which was supported by the University of Michigan; research at this facility was supported by NASA under awards NNX09AU16G, NNX10AP16G, NNX11AO13G, and NNX13AP18G, and by the NSF under award AST-0607523. The Steward Observatory spectropolarimetric monitoring project was supported by NASA Fermi Guest Investigator grants NNX08AW56G, NNX09AU10G, NNX12AO93G, and NNX15AU81G. The Torino group acknowledges financial contribution from agreement ASI-INAF n.2017-14-H.0 and from contract PRIN-SKA-CTA-INAF 2016. I.A. acknowledges support by a Ramon y Cajal grant (RYC-2013-14511) of the 'Ministerio de Ciencia, Innovacion, y Universidades (MICIU)' of Spain and from MCIU through the 'Center of Excellence Severo Ochoa' award for the Instituto de Astrofisica de Andalucia-CSIC (SEV-20170709). Acquisition and reduction of the POLAMI and MAPCAT data were supported by MICIU through grant AYA2016-80889-P. The POLAMI observations were carried out at the IRAM 30-m Telescope, supported by INSU/CNRS (France), MPG (Germany) and IGN (Spain). The MAPCAT observations were carried out at theGerman-Spanish Calar Alto Observatory, jointly operated by the Max-Plank-Institut fur Astronomie and the Instituto de Astrofisica de Andalucia-CSIC. The study is based partly on data obtained with the STELLA robotic telescopes in Tenerife, an AIP facility jointly operated by AIP and IAC. The OVRO 40-m monitoring program is supported in part by NASA grants NNX08AW31G, NNX11A043G, and NNX14AQ89G, and NSF grants AST-0808050 and AST-1109911. TH was supported by the Academy of Finland projects 317383 and 320085. AZT-24 observations were made within an agreement between Pulkovo, Rome and Teramo observatories. The Submillimeter Array is a joint project between the Smithsonian Astrophysical Observatory and the Academia Sinica Institute of Astronomy and Astrophysics and is funded by the Smithsonian Institution and the Academia Sinica. The Abastumani team acknowledges financial support by the Shota Rustaveli National Science Foundation under contract FR/217950/16.
r This research was partially supported by the Bulgarian National Science Fund of the Ministry of Education and Science under grants DN 081/2016, DN 18-13/2017, KP-06-H28/3 (2018), and KP-06-PN38/1 (2019), Bulgarian National Science Programme 'Young Scientists and Postdoctoral Students 2019', Bulgarian National Science Fund under grant DN18-10/2017 and National RI Roadmap Projects DO1-157/28.08.2018 and DO1-153/28.08.2018 of the Ministry of Education and Science of the Republic of Bulgaria. GD and OV gratefully acknowledge observing grant support from the Institute of Astronomy and Rozhen National Astronomical Observatory via bilateral joint research project `Study of ICRF radio-sources and fast variable astronomical objects' (head -G. Damljanovic). This work was partly supported by the National Science Fund of the Ministry of Education and Science of Bulgaria under grant DN 08-20/2016, and by project RD-08-37/2019 of the University of Shumen. This work is a part of projects nos 176011, 176004, and 176021, supported by theMinistry of Education, Science and Technological Development of the Republic of Serbia. MGM acknowledges support through the Russian Government Program of Competitive Growth of Kazan Federal University. The Astronomical Observatory of the Autonomous Region of the Aosta Valley (OAVdA) is managed by the Fondazione Clement Fillietroz-ONLUS, which is supported by the Regional Government of the Aosta Valley, the Town Municipality of Nus and the 'Unite des Communes vald 'otainesMont-Emilius'. The research at the OAVdA was partially funded by several `Research and Education' annual grants from Fondazione CRT. This article is partly based on observations made with the IAC80 and TCS telescopes operated by the Instituto de Astrofisica de Canarias in the Spanish Observatorio del Teide on the island of Tenerife. A part of the observations were carried out using theRATAN-600 scientific equipment (SAO of the Russian Academy of Sciences)
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