Small-Scale Waves and Wave-Like Features in Jupiter’s Atmosphere Detected by JunoCam

<p>Within the first 26 orbits of the Juno spacecraft around Jupiter, we have identified a variety of wave-like features in images made by its public-outreach camera, JunoCam.  Because of Juno’s unprecedented and repeated proximity to Jupiter’s cloud tops during its close approaches, JunoCam has detected more wave structures than any previous surveys.  Most of the waves appear in long wave packets, oriented east-west and populated by narrow wave crests.  Spacing between crests were measured as small as ~30 km, shorter than any previously measured.  Some waves are associated with atmospheric features, but others are not ostensibly associated with any visible cloud phenomena and thus may be generated by dynamical forcing below the visible cloud tops.    Some waves also appear to be converging and others appear to be overlapping, possibly at different atmospheric levels.  Another type of wave has a series of fronts that appear to be radiating outward from the center of a cyclone.  Although we have detected wave-like phenomena covering latitudes between 20°S and 45°N, most appear within 5° of latitude from the equator. Most waves appear in regions associated with prograde motions of the mean zonal winds.   Although Juno was unable to measure the velocity of wave features to diagnose the wave types due to its close and rapid flybys, both by our own upper limits on wave motions and by analogy with previous measurements, we expect that the waves JunoCam detected near the equator are inertia-gravity waves.</p>

Clinical and morphological substantiation of need for application narrow-wave ultraviolet therapy for improving the quality of treatment and duration of remission in patients with psoriasis

The goal is substantiating clinically and morphologi­cally the need for narrow-wave (311 nm) ultraviolet (UV) therapy to improve the quality of treatment and the du­ration of remission in patients with psoriasis. Materials and methods. Under observation were 134 patients with common psoriasis (82 men and 52 women aged 23 to 65 years). For UV therapy, the PSOROLIGHT 100-6 photo- therapeutic apparatus (medical equipment Viola Ukraine, Poltava) with a wavelength of 311 nm was used. Initial radiation doses were determined depending on the skin photo type. The standard course of treatment consisted of 15-20 procedures with a regimen 3-4 times a week. Results. In patients of group I, 2 times faster regression of the rash was observed, and in 54 (81.8%) patients of group I, the rash disappeared after 15-20 procedures, in 52 (78.8%) after 6-8 months, the skin process was stable , after a year in 41 (62.12%). In biopsy samples in 8 (88.9%) patients of group I, moderate acanthosis and hyperkeratosis were observed, there were no signs of parakeratosis in 7 (77.8%), the thickness of the horny layer was restored in 8 (88.9%) and granular layers of patients of the first group. Conclusions. All of the above gives reason to justify the need for narrow-wave ultravio­let therapy in patients with psoriasis to improve the qual­ity of treatment and the duration of remission in patients with psoriasis. Conclusions. All of the above gives reason to justify the need for narrow-wave ultraviolet therapy in patients with psoriasis to improve the quality of treatment and the duration of remission in patients with psoriasis.

PERSPECTIVE OF PHOTOTHERAPY OF DERMATOSES BY MEANS OF UVB -311 NM

The paper presents the modern data concerning the spectrum of electromagnetic radiation and its impact on the structure and function of the skin at various dermatoses. The possibilities of non-drug treatment of dermatoses using different UV spectrum are described. Particular attention is paid to the study of the most effective and safe method for treatment by means of narrow-wave phototherapy with a maximum emission at a wavelength of 311 nm (UVB - 311). The results of the comparative analysis of efficacy and safety of PUVA photochemotherapy and phototherapy UVB -311, on examples of some specific nosologic units (psoriasis, parapsoriasis, vitiligo, mycosis fungoides, photodermatosis, atopic dermatitis) are presented. Based on analysed data, authors conclude that UVB -311 nm is an effective, well-tolerated, safe and alternative method for treatment of chronic dermatoses. The brief review of the available in literature data, allow authors to make conclusion about the possibility of widespread implementation of phototherapy method in practical dermatology.

Asymptotic estimate for the counting problems corresponding to the dynamical system on some decorated graphs

We study a topological space obtained from a graph via replacing vertices with smooth Riemannian manifolds, that is, a decorated graph. We consider the following dynamical system on decorated graphs. Suppose that, at the initial time, we have a narrow wave packet on a one-dimensional edge. It can be thought of as a point moving along the edge. When a packet arrives at the point of gluing, the expanding wavefront begins to spread on the Riemannian manifold. At the same time, there is a partial reflection of the wave packet. When the wavefront that propagates on the surface comes to another point of gluing, it generates a reflected wavefront and a wave packet on an edge. We study the number of Gaussian packets, that is, moving points on one-dimensional edges as time goes to infinity. We prove the asymptotic estimations for this number for the following decorated graphs: a cylinder with an interval, a two-dimensional torus with an interval and a three-dimensional torus with an interval. Also we prove a general theorem about a manifold with an interval and apply it to the case of a uniformly secure manifold.

Nucleon–anti-nucleon intruder state of Dirac equation for nucleon in deep scalar potential well

We solve the Dirac radial equation for a nucleon in a scalar Woods–Saxon potential well of depth [Formula: see text] and radius [Formula: see text]. A sequence of values for the depth and radius are considered. For shallow potentials with [Formula: see text] the wave functions for the positive-energy states [Formula: see text] are dominated by their nucleon component [Formula: see text]. But for deeper potentials with [Formula: see text] the [Formula: see text]s begin to have dominant anti-nucleon component [Formula: see text]. In particular, a special intruder state enters with wave function [Formula: see text] and energy [Formula: see text]. We have considered several [Formula: see text] values between 2 and 8[Formula: see text]fm. For [Formula: see text] and the above [Formula: see text] values, [Formula: see text] is the only bound positive-energy state and has its [Formula: see text] closely equal to [Formula: see text], both having a narrow wave packet shape centered around [Formula: see text]. The [Formula: see text] of this state is practically independent of [Formula: see text] for the above [Formula: see text] range and obeys closely the relation [Formula: see text].

On the Classical Schrödinger Equation

In this paper, the classical Schrödinger equation (CSE), which allows the study of classical dynamics in terms of wave functions, is analyzed theoretically and numerically. First, departing from classical (Newtonian) mechanics, and assuming an additional single-valued condition for the Hamilton’s principal function, the CSE is obtained. This additional assumption implies inherent non-classical features on the description of the dynamics obtained from the CSE: the trajectories do not cross in the configuration space. Second, departing from Bohmian mechanics and invoking the quantum-to-classical transition, the CSE is obtained in a natural way for the center of mass of a quantum system with a large number of identical particles. This quantum development imposes the condition of dealing with a narrow wave packet, which implicitly avoids the non-classical features mentioned above. We illustrate all the above points with numerical simulations of the classical and quantum Schrödinger equations for different systems.