Distances and peculiar velocities of spiral galaxies in the 2MFGC and SFI++ samples

We compare infrared Tully-Fisher (TF) distances and peculiar velocities derived for spiral galaxies from the two largest datasets: the 2MASS selected Flat Galaxy Catalog, 2MFGC [19, 20] and the Arecibo General Catalog with I-band photometry, SFI++ [30,7]. These samples contain peculiar velocities for ~3000 and ~4000 objects, respectively. Based on a sub-sample of ~1000 common deeply inclined galaxies, we reach the following conclusions. Irrespective to high (SFI++) or low (2MFGC) quality of the used photometric data, about 10% of the galaxies in both samples deviate considerably from the main body of the TF relation. After their deletion, the standard TF scatters drops to 0.47^m (2MFGC) and 0.40^m (SFI++). The TF distances, derived from two the samples, demonstrate a high degree of mutual agreement with a correlation coefficient \ro=+0.95 and \sigma(H_0r)=837 km/s. Peculiar velocities of the galaxies are also correlated with \ro=0.56-0.59 and \sigma(V_pec)=610 km/s. We find that the bulk motion of the 2MFGC and SFI++ galaxies on a typical scale of H_0r~5700 km/s can be represented by a dipole solution with the amplitude V=297+/-23 km/s directed towards l=292+/-4 degr., b=-12+/-3 degr., being only slightly sensitive to different modifications of the TF relaton.Comment: 19 pages, 6 figures. Accepted for publication in Astrophysic

Моделирование быстродействующих электронных устройств

Пропонуються методи аналізу високочастотних електронних засобів, що можуть бути застосовані при проектуванні монолітних інтегральних схем. Розроблені математичні моделі аналізу дозволяють проводити оцінки електромагнітних взаємовпливів неавтономних компонентів та комунікаційних структур у випадку їх взаємодії один з одним. Запропоновані моделі, в першу чергу, спрямовані на побудови системної САПР наноелектроніки.Introduction. The theme of this publication is the modeling of electronic tools that operate in the frequency range from zero to terahertz and higher. Application of new concepts and technologies, including biotechnology and nanotechnology, in the development of monolithic integrated circuits led to a backlog of technologies of projecting from technologies and experimental research and manufacturing. The aim of this work is to develop algorithms for analysis, reflecting not only topological as well as morphological properties of the object, that is designing within the framework of accounting EMI communicational transmission of energy and information in the volume of the monolithic integrated circuit. Basic steps for constructing the algorithm. The object of design is presented in the form of basic elements, which can be combined with a communication structure. The object of design is presented in the form of basic elements, which can be combined with a communication structure. There are three types of matrix equations: component; component - communication structure; communication structure. Systems of equations are reduced to standardized descriptors of mathematical model that are current of poles and voltage arcs whole set of basic elements. In this way mathematical model that can be implemented in CAD nano and micro technology electronics is obtained. Conclusions. Mathematical models of analysis of high-speed digital and analog electronic tools are designed. The algorithm allows to carry out the morphological optimization, namely to minimize the adverse effects outside the system of electromagnetic interaction between the components and communicator.Предлагаются методы анализа высокочастотных электронных средств, которые могут быть применены при проектировании монолитных интегральных схем. Разработаны математические модели анализа позволяют проводить оценки электромагнитных взаимовлияний неавтономных компонентов и коммуникационных структур в случае их взаимодействия друг с другом. Предложенной модели, в первую очередь, направлены на построения системной САПР наноэлектроники

HI Observations of Flat Galaxies

We present the HI observations of 94 flat spiral galaxies from RFGC (the Revised Flat Galaxy Catalog) and 14 galaxies from 2MFGC (the 2MASS selected Flat Galaxy Catalog) performed with the 100-m radio telescope in Effelsberg (Germany). HI fluxes, heliocentric radial velocities, and HI line widths are given for 65 detected galaxies. We present a mosaic of HI profiles. We calculated some of the global parameters of the galaxies and analyzed the linear correlations between them. The ratios of the total (indicative) masses of the galaxies to their luminosities lie within the range 0.4 with a mean of 3.8 (M_{\sun}/L_{\sun}), and the mean mass fraction of neutral hydrogen is 13%. Upper limits are given for the radio fluxes from 43 undetected galaxies.Comment: 24 pages, 7 figure

The spectral manifistation of the new luminescent styryl dyes photostability and phototoxic influence on the DNA

У роботі запропоновано методи спектральних досліджень фотостабільності та фото- токсичного впливу люмінесціюючих зондів-барвників на ДНК. Досліджено спектри оптичного поглинання, флюоресценції та фосфоресценції нових стирилових барвників та систем ДНК+барвник. Спектри оптичного поглинання досліджуваних сполук реєструвалися під час опромінювання зразків цих речовин видимим світлом. У роботі аналізуються результати цих експериментів, проведені на низці барвників. Зафіксовано зміни оптичної густини D розчинів систем ДНК+барвник на ділянці спектра 250+300 нм (що відповідає першому електронному переходу в ДНК) та 370+650 нм (що відповідає першому електронному переходу в молекулах барвників). Динаміка D(t) не є монотонною. Показано, що бавники Mn-Styr ma Di-Styr-30 є фотохімічно безпечними для ДНК; ці барвники є більш фотостабільними у зв 'язаному з ДНК стані, ніж: у вільному. Барвники Di-Styr-24 ma Dst-MdO, на відміну від попередніх, проявляють невеликий фототоксичний вплив на ДНК. Пропонуються версії щодо можливих механізмів фотогтокичності (та фотостабільності).The spectral investigation methods of the phenomena of luminescent dye probes photostability and phototoxic influence on the DNA were proposed. The optical absorption, fluorescence and phosphorescence spectra of the samples of the newest investigated styryl dyes and the systems DNA +dye were studied. The optical absorption spectra of the samples of these compounds were measured under the irradiation of these samples by visible light. The results of the investigations carried out on a number of dyes were analyzed and discussed. The changes of optical density D value in wavelength regions 250+300 nm (that corresponds to the DNA first electronic transition) and 370+650 nm (that corresponds to a dye electronic transition) of the DNA+dye solutions were fixed. The dynamics ofD(t) was not monotonous. It was shown the Mn-Styr and Di-Styr-30 dyes are photochemically safe for the DNA; these dyes bound to the DNA are more photostable than in free state. The Di-Styr-24 and Dst-MdO dyes show slight phototoxic effect on the DNA. The versions of possible phototoxicity (and photostability) mechanisms are proposed

Optical and HI properties of isolated galaxies in the 2MIG catalog. I. General relationships

We analyze empirical relationships between the optical, near infrared, and HI characteristics of isolated galaxies from the 2MIG Catalog covering the entire sky. Data on morphological types, K_S-, and B-magnitudes, linear diameters, HI masses, and rotational velocities are examined. The regression parameters, dispersions, and correlation coefficients are calculated for pairs of these characteristics. The resulting relationships can be used to test the hierarchical theory of galaxy formation through numerous mergers of cold dark matter.Comment: 18 pages, 11 figures, 5 table