27 research outputs found
Overbarrier Resonances as Solutions of Set Inhomogeneous Schr\"{o}dinger Equations
In the paper the Schr\"odinger equation for quasibound resonance state with
complex energy is considered. The system of inhomogeneous differential
equations is obtained for the real and imaginary parts of wave function. On the
base of known solution of corresponding homogeneous equation, the inhomogeneus
system is solved with help of iteration procedure. The single-particle neutron
-state in the Woods - Saxon potential is analyzed for nucleus.Comment: 19 pages, 3 figure
State-resolved rotational cross sections and thermal rate coefficients for ortho-/para-H2+HD at low temperatures and HD+HD elastic scattering
Results for quantum mechanical calculations of the integral cross sections
and corresponding thermal rate coefficients for para-/ortho-H2+HD collisions
are presented. Because of significant astrophysical interest in regard to the
cooling of primodial gas the low temperature limit of para-/ortho-H2+HD is
investigated. Sharp resonances in the rotational state-resolved cross sections
have been calculated at low energies. These resonances are important and
significantly contribute to the corresponding rotational state-resolved thermal
rate coefficients, particularly at low temperatures, that is less than K. Additionally in this work, the cross sections for the elastic HD+HD
collision have also been calculated. We obtained quite satisfactory agreement
with the results of other theoretical works and experiments.Comment: 16 pages, 5 figures, additional results include
External Electromagnetic Fields of a Slowly Rotating Magnetized Star with Gravitomagnetic Charge
We study Maxwell equations in the external background spacetime of a slowly
rotating magnetized NUT star and find analytical solutions for the exterior
electric fields after separating the equations of electric field into angular
and radial parts in the lowest order approximation. The star is considered
isolated and in vacuum, with dipolar magnetic field aligned with the axis of
rotation. The contribution to the external electric field of star from the NUT
charge is considered in detail.Comment: 6 pages, 2 figures, accepted for publication in Astrophysics and
Space Scienc
СИМУЛЬТАННАЯ ОПЕРАЦИЯ У ПАЦИЕНТКИ С ЛЕЙОМИОМАТОЗОМ ПРАВОГО ЯИЧНИКА С ИНТРАКАРДИАЛЬНЫМ РАСПРОСТРАНЕНИЕМ: КЛИНИЧЕСКИЙ СЛУЧАЙ
HighlightsIntravascular leiomyoma with heart extension is a rare occurring condition. According to the available data, the number of cases does not exceed 30 despite many years of studies. Often cardiac hospitals cannot establish the clinical picture, so the surgeon removes only cardiac tumors, which inevitably leads to the recurrence of the tumor after a few months. AbstractLeiomyomatosis is an extremely rare disease that occurs in women of childbearing age. The development of the malignant tumor is preceded by the removal of the uterine fibroids or hysterectomy. Radical surgery guarantees the complete absence of relapses, while partial removal leads to relapses in a third of cases. We performed a reoperation on a 35-year-old patient who underwent partial removal of leiomyoma in the right atrium but 3 months later had a tumor causing severe obstruction of the right heart.Основные положенияИнтравенозная опухолевая инвазия лейомиомой, достигающей сердца, встречается редко. По данным литературы, количество случаев составляет не более 30 за долгие годы наблюдений. Зачастую диагностика в кардиостационарах не позволяет определить полную картину, поэтому хирург, как правило, удаляет лишь кардиальную часть опухоли, что неминуемо ведет к возврату опухолевой инвазии спустя несколько месяцев. АбстрактЛейомиоматоз – крайне редкое заболевание, встречаемое у женщин детородного возраста. Как правило, развитию опухоли предшествуют удаление миомы матки или гистерэктомия. Радикальная операция гарантирует полное отсутствие рецидивов, в то время как частичное удаление приводит к рецидивам в трети случаев. Нами выполнено повторное вмешательство у пациентки 35 лет, которая перенесла операцию в условиях искусственного кровообращения в объеме частичного удаления лейомиомы из правого предсердия, а спустя 3 мес. возник рецидив опухоли с признаками тяжелой обструкции правых отделов сердца