A catalogue of twentieth-century cello ensemble music

This document contains over 700 entries of cello ensemble music written in the twentieth and the beginning of the twenty-first centuries by 530 composers from around the world. Pieces presented in this catalogue are largely original works. A few exceptions have been allowed mostly when the composer arranged his/her own piece. For each entry, as much of the available information as possible is provided in the following general order: composer name, composer dates, title of the piece, approximate duration, and availability. Under a section named remarks, additional information is provided such as number and titles of the movements, first performance, sound recordings, record locator numbers, dedications, and other notes by the composer. The document also contains the following appendices: list of the publishers and music centers holding said entries, and an alphabetical list of the composers

Detection of frameshifts and improving genome annotation

We developed a new program called GeneTack for ab initio frameshift detection in intronless protein-coding nucleotide sequences. The GeneTack program uses a hidden Markov model (HMM) of a genomic sequence with possibly frameshifted protein-coding regions. The Viterbi algorithm nds the maximum likelihood path that discriminates between true adjacent genes and a single gene with a frameshift. We tested GeneTack as well as two other earlier developed programs FrameD and FSFind on 17 prokaryotic genomes with frameshifts introduced randomly into known genes. We observed that the average frameshift prediction accuracy of GeneTack, in terms of (Sn+Sp)/2 values, was higher by a signicant margin than the accuracy of the other two programs. GeneTack was used to screen 1,106 complete prokaryotic genomes and 206,991 genes with frameshifts (fs-genes) were identifed. Our goal was to determine if a frameshift transition was due to (i) a sequencing error, (ii) an indel mutation or (iii) a recoding event. We grouped 102,731 genes with frameshifts (fs-genes) into 19,430 clusters based on sequence similarity between their protein products (fs-proteins), conservation of predicted frameshift position, and its direction. While fs-genes in 2,810 clusters were classied as conserved pseudogenes and fs-genes in 1,200 clusters were classied as hypothetical pseudogenes, 5,632 fs-genes from 239 clusters pos- sessing conserved motifs near frameshifts were predicted to be recoding candidates. Experiments were performed for sequences derived from 20 out of the 239 clusters; programmed ribosomal frameshifting with eciency higher than 10% was observed for four clusters. GeneTack was also applied to 1,165,799 mRNAs from 100 eukaryotic species and 45,295 frameshifts were identied. A clustering approach similar to the one used for prokaryotic fs-genes allowed us to group 12,103 fs-genes into 4,087 clusters. Known programmed frameshift genes were among the obtained clusters. Several clusters may correspond to new examples of dual coding genes. We developed a web interface to browse a database containing all the fs-genes predicted by GeneTack in prokaryotic genomes and eukaryotic mRNA sequences. The fs-genes can be retrieved by similarity search to a given query sequence, by fs- gene cluster browsing, etc. Clusters of fs-genes are characterized with respect to their likely origin, such as pseudogenization, phase variation, programmed frameshifts etc. All the tools and the database of fs-genes are available at the GeneTack web site http://topaz.gatech.edu/GeneTack/PhDCommittee Chair: Borodovsky, Mark; Committee Member: Baranov, Pavel; Committee Member: Hammer, Brian; Committee Member: Jordan, King; Committee Member: Konstantinidis, Kostas; Committee Member: Song, L

TWO-PHASE TURBULENT FLOWS … 50 years University of Mining and Geology

ABSTRACT The article is about modern methods for a mathematical description and a numerical modeling of two-phase turbulent flows, which are worked out of the collective through the last 10-15 years. It is given results from a numerical experiment for a kind of jet non-isothermal two-phase flows. Two-phase turbulent flows are basically used in the energetics, the chemistry, the dry technologies and in the food technologies. Their studying is at a great interest from scientific and practical point of view. Therefore, the current article is about one of these methods for numerical investigation of flows of such kind. MATHEMATICAL MODEL It is known two ways for mathematical interpretation of the two-phase (of course and poly-phase) flows. The statistic method is based on the Boltzman's theory of gas mixtures. Because of the complex mathematical description its use is very difficult. That makes the second method -phenomenal, more convenient and more accessible than the first one, the second method uses Newton's equations, which are well known from engineers. I won't describe here the method of passive mixtures, because it is physically ungrounded and because it isn't fit with the real picture of the flow [1], [2]. Two-fluid (or poly-fluid) method examines each of the phases as separate fluid with its own velocity, density and temperature. The mixture phase doesn't have its own tensor of inner pressures P, i.e. its own viscosity and pressure. That means the state equation can't be used for them. On the other hand they have their own turbulence, and their own tensor of turbulent pressures. That is explained with the fact the turbulence is not quality of the fluid, but it is a characteristic of the flow. It is accepted that the losses of the quantity of movement and the energy are consequence from the between-phase interaction, the hits between particles and so on, and these losses are compensated from the quantity of movement and the energy of the carrier phase. The forces of between-phase interaction in the equations of movement for the gas phase are with mark "-", and with mark "+" for the mixture phase. The basic forces are determined when the physical picture of the flow is done. The mixture phase is regarded as "rare multitude of particles", i.e. the time between two hits between particles is much more than the time for relaxation after its own hit. The Reynolds's equation for the two phase of the twodimensional flow are: 1

SPECTROSCOPY AND DYNAMICS OF QUANTUM STATE CONTROLLED SIO+

New tools for cooling and internal state control of molecules emerged in the past decade that allowed fast progress in the field of ultracold molecules. In this work, control of the rotational state of trapped ultracold SiO$^{+}$ was utilized to study its spectroscopy and reaction dynamics. SiO$^{+}$ was prepared by laser ablation of SiO followed by 1+1 REMPI. The ions were trapped in an RF Paul trap and sympathetically cooled by co-trapped ultracold atomic Ba$^{+}$ ions. Rotational states of SiO$^{+}$ were cooled and controlled by means of optical pumping with a spectrally pulse-shaped broadband light source. The pumping via the B$^{2}$$\Sigma$-X$^{2}$$\Sigma$ electronic transition on rotational lines with selected N and $\Delta$N was used to cool SiO$^{+}$ molecules to the ground rotational state and to create a narrow distribution of occupied rotational states centered on a targeted level. Populations centered at different rotational states ranging from N=3 to N=65 were created. SiO$^{+}$ quantum states were probed with photodissociation spectroscopy via the C$^{2}$$\Pi$-X$^{2}$$\Sigma$ electronic transition. The C$^{2}$$\Pi$ state was experimentally characterized for the first time. Rotational state control was used to facilitate line assignment and to probe high rotational levels of the X$^{2}$$\Sigma$ state unpopulated at room temperature. Reaction of trapped SiO$^{+}$ with H$_{2}$ was studied. The reaction rate of rotationally “thermal” SiO$^{+}$ was found to be in good agreement with the literature value. The reaction rates of thermal H$_{2}$ with ultracold rotational state controlled SiO$^{+}$ were measured. Reaction of H$_{2}$ with SiO$^{+}$ “super rotor” states in which rotational energy is of the same order as bond dissociation energy and rotational period approaches time of collision was studied

CHARACTERIZATION OF REACTION PATHWAYS IN LOW TEMPERATURE OXIDATION OF TETRAHYDROFURAN WITH MULTIPLEXED PHOTOIONIZATION MASS SPECTROMETRY TECHNIQUE

Tetrahydrofuran (THF) is a prototype biofuel and a common intermediate in combustion of alkanes and alkenes. Photolytic Cl atom-initiated oxidation of THF was studied with multiplexed photoionization mass spectrometry (MPIMS) technique at temperatures 400-650 K and pressures 0.005-2 bar. Photoionization spectra and kinetic time traces were recorded simultaneously for all mass channels. Photoionization spectra, recorded with tunable VUV synchrotron radiation, were used to separate and identify isomers with the same nominal molecular formula, providing mechanistic insight into the the underlying kinetics. Our study suggests that formation of alkylperoxy radicals and their subsequent isomerization to hydroperoxyalkyl radicals plays an important role in low temperature oxidation of THF, while ring opening of THF$_{-H}$ radical (which dominates THF oxidation at T$>$800 K) is less important at our conditions

SPECTOSCOPY OF SiO AND SiO+ IN SUPPORT OF ULTACOLD MOLECULE STUDIES

SiO$^{+}$ was proposed as a candidate for ultracold molecule experiments. Cooling schemes required to prepare SiO$^{+}$ in its ground state require knowledge of state energies, lifetimes and branching of selected SiO$^{+}$ transitions. Knowledge of dissociative transitions is needed to probe state populations of SiO$^{+}$ in the proposed experiments. Finally, efficient loading of SiO$^{+}$ into a trap by photoionization requires studying spectroscopy of neutral SiO. In this talk, I will discuss recent progress in study of SiO and SiO$^{+}$ spectroscopy in our lab and approaches used to address these studies

Dvodomenski model magnetizacije u tankim diskovima s jednoosnom magnetskom anizotropijom

The influence of the domain structure on the magnetization processes in thin magnetic discs with uniaxial anisotropy is investigated. The critical magnetic fields of transformation from multi-domain to one-domain structure in the sample are calculated. The theoretical results are verified experimentally by the torque moment measurements.Proučava se utjecaj domenske strukture na procese magnetiziranja tankih magnetskih diskova s jednoosnom anizotropijom. Izračunate su vrijednosti kritičnih magnetskih polja pri kojima se višedomenska struktura transformira u jednodomensku. Teorijski su rezultati eksperimentalno provjereni mjerenjem momenta sile na diskove