73 research outputs found
Грибковая инфекция у больных с бронхообструктивным синдромом
Features of clinical and functional relations of fungal superinfection were studied in patients with the bronchial obstructive syndome (BOS) of following nature: fibrosing alveolitis, bronchial asthma and chronic obstructive bronchitis. Moreover, the comparison of the effictivity of different methods of antifungal therapy was carried out.345 patients with BOS were investigated. The essential worsening of the basal disease cource was determined in addiction of fungal infection, that is most expressed in functional parameters of respiration.Results of cultural sputum investigation are the most reliable diagnostic critherion of fungal superinfection, while using clinical parameters it is possible only to assume the superinfection.The maximal efficiency of antifungal therapy with antifunctional chemicals in accompany with plasmaferesis was determined. Isolated immunostimulation in its turn leads to fungal invasion mutation in patients with BOS.В работе изучены особенности клинических и функциональных проявлений грибковой суперинфекиии у больных бронхообструктивным синдромом разной природы: фиброзирующими альвеолитами, бронхиальной астмой и хроническим обструктивным бронхитом, а также проведено сравнение эффективности разных методов противогрибковой терапии.Исследовано 345 больных бронхообструктивным синдромом. Установлено существенное отягощение течения основного заболевания при присоединении грибковой инфекции, что наиболее выражено в функциональных показателях дыхания. Наиболее надежными диагностическими критериями грибковой суперинфекции являются результаты культурального исследования мокроты, в то время как по клиническим признакам можно лишь предположить грибковую суперинфекцию.Установлена максимальная эффективность противогрибковой терапии при сочетании антифункциональных химиопрепаратов с плазмаферезом. Изолированная иммуностимуляция же ведет к изменению грибковой инвазии у больных бронхообструктивным синдромом
Acoustic and oceanographic observations and configuration information for the WHOI moorings from the SW06 experiment
This document describes data, sensors, and other useful information pertaining to the moorings that were
deployed from the R/V Knorr from July 24th to August 4th, 2006 in support of the SW06 experiment. The
SW06 experiment was a large, multi-disciplinary effort performed 100 miles east of the New Jersey coast. A
total of 62 acoustic and oceanographic moorings were deployed and recovered. The moorings were deployed in
a “T” geometry to create an along-shelf path along the 80 meter isobath and an across-shelf path starting at 600
meters depth and going shoreward to a depth of 60 meters. A cluster of moorings was placed at the
intersection of the two paths to create a dense sensor-populated area to measure a 3-dimensional physical
oceanography. Environmental moorings were deployed along both along-shelf and across-shelf paths to
measure the physical oceanography along those paths. Moorings with acoustic sources were placed at the outer
ends of the “T” to propagate various signals along these paths. Five single hydrophone receivers were
positioned on the across shelf path and a vertical and horizontal hydrophone array was positioned at the
intersection of the “T” to get receptions from all the acoustics assets that were used during SW06.Funding was provided by the Office of Naval Research under Contract
No. N00014-04-1014
Self-induced and induced transparencies of two-dimensional and three- dimensional superlattices
The phenomenon of transparency in two-dimensional and three-dimensional
superlattices is analyzed on the basis of the Boltzmann equation with a
collision term encompassing three distinct scattering mechanisms (elastic,
inelastic and electron-electron) in terms of three corresponding distinct
relaxation times. On this basis, we show that electron heating in the plane
perpendicular to the current direction drastically changes the conditions for
the occurrence of self-induced transparency in the superlattice. In particular,
it leads to an additional modulation of the current amplitudes excited by an
applied biharmonic electric field with harmonic components polarized in
orthogonal directions. Furthermore, we show that self-induced transparency and
dynamic localization are different phenomena with different physical origins,
displaced in time from each other, and, in general, they arise at different
electric fields.Comment: to appear in Physical Review
A transverse current rectification in graphene superlattice
A model for energy spectrum of superlattice on the base of graphene placed on
the striped dielectric substrate is proposed. A direct current component which
appears in that structure perpendicularly to pulling electric field under the
influence of elliptically polarized electromagnetic wave was derived. A
transverse current density dependence on pulling field magnitude and on
magnitude of component of elliptically polarized wave directed along the axis
of a superlattice is analyzed.Comment: 12 pages, 6 figure
Тестирование модели IRI по данным российских ионосферных станций Ловозеро, Салехард, Диксон, Тунгуска и Якутск
Empirical models are one of effective ways to set and predict a condition of the ionosphere. To estimate an accuracy of such setting it is necessary to test models by means of experimental data. One of most widely used models is IRI (International Reference Ionisphere), however it is insufficiently tested in the region of high latitudes. In the given article results of testing of the model IRI according to vertical sounding on Russian ionosondes, located in subauroral and high-latitude zones in March– April 2016 are presented. Feature of the period is presence of several geomagnetic disturbances. The studied parameter is a critical frequency foF2, the basic analyzed magnitude is the deviation of a model value from experimental one and its relative mean square deviation. Despite increase last years of numbers of ionosondes in a Russian Arctic zone by efforts of AARI, their number is not enough for detailed monitoring. Additionally, it is possible to use receivers of signals of navigation satellites of such systems, as GPS, GLONASS, providing the information about a total electron content (ТЕС). In a number of papers, possibility of use of ТЕС to obtain critical frequencies is shown. In the present paper, confirmation of this possibility is given in subauroral and high-latitude regions. Results are presented for five Russian stations (Lovozero, Salekhard, Dickson, Tunguska,Yakutsk) in comparison with data of reference middle-latitude station Juliustuh. It is shown, that deviations of model values of foF2 from experimental medians in high latitudes are at level of middle-latitude values, relative deviations for instant values of foF2 day by day do not exceed 20–25 %. The ТЕС usage allows decreasing this estimation in 2 times. Values of correlation coefficients between foF2 and ТЕС, defining possibility to use ТЕС for obtaining foF2, lay within 0.6–0.99. The ТЕС usage allows filling absent values of foF2.В данной статье приводятся результаты тестирования модели IRI (International Reference Ionisphere) по данным вертикального зондирования на российских ионозондах, расположенных в арктической зоне, в марте–апреле2016 г. Особенностью периода является наличие нескольких геомагнитных возмущений. Полученные в работе данные подтверждают возможность использования TEC для определения критических частот в арктическом регионе. Результаты исследования приводятся для пяти российских станций (Ловозеро, Салехард, Диксон, Тунгуска, Якутск) в сравнении с данными эталонной среднеширотной станции Юлиусрух. Показано, что отклонения модельных значений foF2 от экспериментальных медиан в высоких широтах находятся на уровне среднеширотных, для мгновенных значений foF2 день ото дня относительные изменения могут составлять до 20–25 %. Использование TEC позволяет в 2 раза уменьшить эту оценку. Значения коэффициентов корреляции между foF2 и TEC, определяющей возможность использования TEC для расчета foF2, лежат в пределах 0,6–0,99
Hybrid fusion–fission reactor with a thorium blanket: Its potential in the fuel cycle of nuclear reactors
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