Effects of electric charge on osmotic flow across periodically arranged circular cylinders

An electrostatic model is developed for osmotic flow across a layer consisting of identical circular cylinders with a fixed surface charge, aligned parallel to each other so as to form an ordered hexagonal arrangement. The expression of the osmotic reflection coefficient is derived for spherical solutes with a fixed surface charge suspended in an electrolyte, based on low-Reynolds-number hydrodynamics and a continuum, point-charge description of the electric double layers. The repulsive electrostatic interaction between the surface charges with the same sign on the solute and the cylinders is shown to increase the exclusion region of solute from the cylinder surface, which enhances the osmotic flow. Applying the present model to the study of osmotic flow across the endothelial surface glycocalyx of capillary walls has revealed that this electrostatic model could account well for the reflection coefficients measured for charged macromolecules, such as albumin, in the physiological range of charge density and ion concentration.

Streatfeild v London Philharmonic Orchestra 2012

Case law report - online

Procesos creativos en entornos musicales inmersivos: un estudio de caso a través del análisis de metaversos. La Avatar Orchestra Metaverse en Second Life

La virtualidad se presenta como un espacio de creación y expansión de la realidad física. La percepción y la relación de los procesos creativos que giran en torno a lo virtual en lo referente a la música, la performance y la experimentación rigen e interaccionan nuestras realidades físicas, aún estando offline. Dichos procesos creativos son estudiados en la Orquesta virtual Avatar Orchestra Metaverse. Hemos navegado a través de la realidad creada por la Orquesta en el ciberespacio, bajo una metodología de estudio de caso -al que hemos llamado cybercase-, asistiendo y participando durante un tiempo en sus ensayos, junto a una posterior actuación. A través de un enfoque interdisciplinar basado en un proceso de análisis de material audiovisual y textual mediado por la presencia, entendida desde lo físico y lo virtual, exponemos los procesos creativos encontrados que subyacen bajo los miembros de la Orquesta, de modo descriptivo, y mediante el empleo de la teoría fundamentada. Como marco teórico mostramos los conceptos de música, espacio, tiempo y los procesos de comunicación gestados por la máquina y la virtualidad, todo ello mediado desde la percepción del ambiente y el interaccionismo simbólico. Presentamos dentro de este marco una revisión teórica del concepto de la creatividad enfocado desde la mecánica cuántica...

Sarah Caldwell, Symphony Orchestra Conductor

General note: Title and date provided by Bettye Lane.

Fest-Chor zur Enthüllung des Mozart-Denkmals in Salzburg: aus Compositionen des Gefeierten

zusammengestellt, instrumentirt, und mit einem passenden Texte versehen von dessen Sohne W.A. Mozart..

The Influence of the Guatemalan Municipal Orchestra's Curriculum on the Social Relations of its Members

The purpose of this case study is to determine the influence of the curriculum used by the Guatemalan Municipal Orchestra (GMO) upon the social interactions of its members. Social interactions include relations with families, teachers, and music colleagues. To determine this influence, the researcher framed the study using three main components: the impact of music in the development of children’s social skills; the curricula forming educational processes; and the characteristics of the Venezuela musical program, El Sistema. These foundations are explored via the tenets of participatory literacy. The data collection included interviews, surveys, and observation of students, parents, teachers, and administrative personnel. Two primary themes emerged from the data analysis: the development of a sense of community and the presence of intrinsic and external motivators implicit in the GMO environment. The final analysis suggests that curricular practices in the GMO positively influenced the development of students’ social interactions.

Hermes, a Concerto for Violoncello and Orchestra

This thesis consists of a large composition for violoncello and orchestra, together with an analytical paper in which I discuss my compositional techniques and some of their historical antecedents. The composition draws on the genres of imaginary musical theater, the symphonic poem, and the concerto. It was also inspired by the story of Hermes, the messenger god from Greek mythology. While the myth partially informs the compositional structure, the work is ultimately meant to showcase the versatility of the cello, the coloristic range of the orchestra (in some cases emulating the orchestral styles of previous composers), the balance of cello and orchestra together, and the eclectic invocation of many compositional techniques separately and simultaneously. These techniques encompass set theory (the use of unordered pitch collections), polytonality, and serialism. It is composed in a post-romantic style.

TRPV4: Molecular Conductor of a Diverse Orchestra

Transient receptor potential vanilloid type 4 (TRPV4) is a calcium-permeable nonselective cation channel, originally described in 2000 by research teams led by Schultz (Nat Cell Biol 2: 695-702, 2000) and Liedtke (Cell 103: 525-535, 2000). TRPV4 is now recognized as being a polymodal ionotropic receptor that is activated by a disparate array of stimuli, ranging from hypotonicity to heat and acidic pH. Importantly, this ion channel is constitutively expressed and capable of spontaneous activity in the absence of agonist stimulation, which suggests that it serves important physiological functions, as does its widespread dissemination throughout the body and its capacity to interact with other proteins. Not surprisingly, therefore, it has emerged more recently that TRPV4 fulfills a great number of important physiological roles and that various disease states are attributable to the absence, or abnormal functioning, of this ion channel. Here, we review the known characteristics of this ion channel's structure, localization and function, including its activators, and examine its functional importance in health and disease.

Map of the upper part of the Island of Manhattan above Eighty-Sixth Street arranged to illustrate the Battle of Harlem Heights.

Relief shown by hachures.

Orchid hybrids. Sander's complete list. Containing the names and parentages of all the known hybrid orchids whether introduced or artificially raised. Arranged in tabular, alphabetical form ...

Published originally as a supplement to the author's Orchid guide. cf. Naturae novitates, 28. Jahrg., 1906, p. 377.

Rosarum monographia; or, A botanical history of roses to which is added, an appendix, for the use of cultivators, in which the most remarkable garden varieties are systematically arranged ...

Mode of access: Internet.

Generating Effective Test Suites for Model Transformations Using Classifying Terms

Generating sample models for testing a model transformation is no easy task. This paper explores the use of classifying terms and stratified sampling for developing richer test cases for model transformations. Classifying terms are used to define the equivalence classes that characterize the relevant subgroups for the test cases. From each equivalence class of object models, several representative models are chosen depending on the required sample size. We compare our results with test suites developed using random sampling, and conclude that by using an ordered and stratified approach the coverage and effectiveness of the test suite can be significantly improved.

Whisper our futures

Whisper Our Futures was an invited design proposal to produce a major public artwork for the State of Queensland’s 150th Anniversary Celebrations. It involved a network of 100 individual scrolling digital text boxes each with individual audio systems arranged together in a tessellated format. This form (specified by the originating brief) both mimicked the soaring gothic arches typical of Queensland cathedrals and was also suggestive of their stained glass windows. Each text module presented a message in both visual and audible forms for Queenslanders living 150 years hence - spoken both by the general public aw well as prominent figures. In this way the work was designed as a focus of future hope, historical reflection and inspiration to visitors to Queensland cathedrals throughout the entire year of celebrations (2009). The work was planned to premiere at Brisbane’s main Anglican Cathedral and then tour to nine other state cathedrals throughout 2009.---- Two staged proposals and budgets were invited throughout 2007. After the second successful proposal stage the State Premier and cabinet changed, ultimately leading the public art components to be dropped from the program. The proposal currently remains on file at the Queensland Premiers Office.

The effects of habitat fragmentation on the demography and population genetic structure of Uromys Caudimaculatus

Habitat fragmentation can have an impact on a wide variety of biological processes including abundance, life history strategies, mating system, inbreeding and genetic diversity levels of individual species. Although fragmented populations have received much attention, ecological and genetic responses of species to fragmentation have still not been fully resolved. The current study investigated the ecological factors that may influence the demographic and genetic structure of the giant white-tailed rat (Uromys caudimaculatus) within fragmented tropical rainforests. It is the first study to examine relationships between food resources, vegetation attributes and Uromys demography in a quantitative manner. Giant white-tailed rat densities were strongly correlated with specific suites of food resources rather than forest structure or other factors linked to fragmentation (i.e. fragment size). Several demographic parameters including the density of resident adults and juvenile recruitment showed similar patterns. Although data were limited, high quality food resources appear to initiate breeding in female Uromys. Where data were sufficient, influx of juveniles was significantly related to the density of high quality food resources that had fallen in the previous three months. Thus, availability of high quality food resources appear to be more important than either vegetation structure or fragment size in influencing giant white-tailed rat demography. These results support the suggestion that a species’ response to fragmentation can be related to their specific habitat requirements and can vary in response to local ecological conditions. In contrast to demographic data, genetic data revealed a significant negative effect of habitat fragmentation on genetic diversity and effective population size in U. caudimaculatus. All three fragments showed lower levels of allelic richness, number of private alleles and expected heterozygosity compared with the unfragmented continuous rainforest site. Populations at all sites were significantly differentiated, suggesting restricted among population gene flow. The combined effects of reduced genetic diversity, lower effective population size and restricted gene flow suggest that long-term viability of small fragmented populations may be at risk, unless effective management is employed in the future. A diverse range of genetic reproductive behaviours and sex-biased dispersal patterns were evident within U. caudimaculatus populations. Genetic paternity analyses revealed that the major mating system in U. caudimaculatus appeared to be polygyny at sites P1, P3 and C1. Evidence of genetic monogamy, however, was also found in the three fragmented sites, and was the dominant mating system in the remaining low density, small fragment (P2). High variability in reproductive skew and reproductive success was also found but was less pronounced when only resident Uromys were considered. Male body condition predicted which males sired offspring, however, neither body condition nor heterozygosity levels were accurate predictors of the number of offspring assigned to individual males or females. Genetic spatial autocorrelation analyses provided evidence for increased philopatry among females at site P1, but increased philopatry among males at site P3. This suggests that male-biased dispersal occurs at site P1 and female-biased dispersal at site P3, implying that in addition to mating systems, Uromys may also be able to adjust their dispersal behaviour to suit local ecological conditions. This study highlights the importance of examining the mechanisms that underlie population-level responses to habitat fragmentation using a combined ecological and genetic approach. The ecological data suggested that habitat quality (i.e. high quality food resources) rather than habitat quantity (i.e. fragment size) was relatively more important in influencing giant white-tailed rat demographics, at least for the populations studied here . Conversely, genetic data showed strong evidence that Uromys populations were affected adversely by habitat fragmentation and that management of isolated populations may be required for long-term viability of populations within isolated rainforest fragments.