476 research outputs found
Research on experiential psychotherapies
Reviews research on experiential or humanistic psychotherapies, including meta-analysis of outcome research and studies of particular change processes. Outcome meta-analysis shows large client pre-post change, as well as large controlled effects relative to untreated controls and statistical equivalence to nonexperiential psychotherapies, including CBT
The electroclinic effect and modulated phases in smectic liquid crystals
We explore the possibility that the large electroclinic effect observed in
ferroelectric liquid crystals arises from the presence of an ordered array of
disclination lines and walls. If the spacing of these defects is in the
subvisible range, this modulated phase would be similar macroscopically to a
smectic A phase. The application of an electric field distorts the array,
producing a large polarization, and hence a large electroclinic effect. We show
that with suitable elastic parameters and sufficiently large chirality, the
modulated phase is favored over the smectic A and helically twisted smectic C*
phases. We propose various experimental tests of this scenario.Comment: 9 pages, 7 figures; new version includes dipolar interactions and
bend-twist couplin
A review of William Hogarth's Marriage Ă la Mode with particular reference to character and setting
The thesis has been prepared on the assumption that Hogarth's picture series are essentially narrative works. They are considered in the Introduction in the light of recent definitions of the narrative strip, a medium in which Hogarth was a considerable innovator.
The first six chapters consist of an analysis of each of the pictures in Marriage á la Mode. The analysis was undertaken as a means of exploring the nature of Hogarth's imagination and to discover how coherent a work the series is. There is an emphasis on characterization and setting because Hogarth himself chose to isolate character as a feature in the subscription ticket to Marriage á la Mode. The figures acquire their depth through their interaction with the setting. The interaction compensates for the lack of physical movement in Hogarth's picture narratives and is a source of much of his humour. A number of sections are concerned with relevant background information, such as the traditional rivalry between the cities of London and Westminster, and the medical details of the quack doctor's laboratory.
The seventh chapter is concerned with the literary allusion in Marriage á la Mode, particularly to the popular drama of the time. The eighth is concerned with the extensive and ironic use of analogies. The ninth chapter is concerned with the subject of structure, including the delineation of the rôle of the projected spectator as defined by the work which contains him. The tenth is about theme and includes the use made of the traditional elements and 'humours'.
It is concluded that Marriage á la Mode is a tragi-comic and melodramatic work, and that Hogarth in what are here termed periphrastic sequences came close to making images behave like words without their becoming dependent on any verbal form. His achievement lay in the ability intelligently to organize diversity into a unified structure, similar to that of situation comedy
An examination and interpretation of narrative features in 'A Rake's Progress'
A Rake's Progress is examined to discover in what ways a pictorial narrative can be narrative in a literary sense. The personality, actions, and background of the central character are considered from established literary-dramatic points of view in the body of the thesis. The Rake is seen as both a well-defined individual and a universal study of a reactionary who aspires towards ancient ideals; a mock-hero in a complex work. An explanation of misunderstood and neglected details is attempted and it is shown how they contribute effectively to what is thought to be a coherent work. It is argued that the heroine is not a pathetic and unfortunate addition to the story, but that she is an integral part of Hogarth's imaginative thought. His detached attitude towards her is considered as major evidence of a comic and melodramatic style. In the third part Hogarth's treatment of recurrent emblems is compared to the poetic purposes of iterative imagery and it is claimed that Hogarth's religious "imagery" shows that the progress is a multi-layered allegory. It is claimed in the conclusion that Hogarth manipulates his authorial viewpoint and chooses what he is prepared to disclose or not to disclose like a writer; that the symmetry of the work is comparable to the appearance of a short poem; that Hogarth's progresses offer a unique quality of multiplicity to the concept of narrative; that there is evidence which shows that Hogarth maintained a close relationship with his subscribers, anticipating that of Dickens; that A Rake's Progress represents a transitional work between simple, picaresque fictions and philosophically more complex ones
MyoD Synergizes with the E-protein HEB Beta to Induce Myogenic Differentiation
The MyoD family of basic helix-loop-helix transcription factors function as heterodimers with members of the E-protein family to induce myogenic gene activation. The E-protein HEB is alternatively spliced to generate alpha and beta isoforms. While the function of these molecules has been studied in other cell types, questions persist regarding the molecular functions of HEB proteins in skeletal muscle. Our data demonstrate that HEB alpha expression remains unchanged in both myoblasts and myotubes, whereas HEB beta is upregulated during the early phases of terminal differentiation. Upon induction of differentiation, a MyoD-HEB beta complex bound the E1 E-box of the myogenin promoter leading to transcriptional activation. Importantly, forced expression of HEB beta with MyoD synergistically lead to precocious myogenin expression in proliferating myoblasts. However, after differentiation, HEB alpha and HEB beta synergized with myogenin, but not MyoD, to activate the myogenin promoter. Specific knockdown of HEB beta by small interfering RNA in myoblasts blocked differentiation and inhibited induction of myogenin transcription. Therefore, HEB alpha and HEB beta play novel and central roles in orchestrating the regulation of myogenic factor activity through myogenic differentiation
Leaching of Potential Hazardous Elements of Coal Cleaning Rejects
The geochemical characteristics of coal cleaning rejects (CCR) in Santa Catarina State, Brazil, were investigated. Around 3.5 million ton/ year of coal waste are dumped in Santa Catarina State. Coal beneficiation by froth flotation results in large amounts of CCR composed of coaly and mineral matter, the latter characterized by the occurrence of sulphide minerals and a broad array of leachable elements. The total and leachable contents of more than 60 elements were analyzed. Atmospheric exposure promotes sulphide oxidation that releases substantial sulphate loads as well as Ca2+, K+, Mg2+, Cl- and Al3+. The metals with the most severe discharges were Zn, Cu, Mn, Co, Ni and Cd. Most trace pollutants in the CCR displayed a marked pH-dependent solubility, being immobile in near-neutral samples. The results highlight the complex interactions among mineral matter solubility, pH and the leaching of potentially hazardous elements. © 2010 Springer Science+Business Media B.V
Thermodynamic Description of the Relaxation of Two-Dimensional Euler Turbulence Using Tsallis Statistics
Euler turbulence has been experimentally observed to relax to a
metaequilibrium state that does not maximize the Boltzmann entropy, but rather
seems to minimize enstrophy. We show that a recent generalization of
thermodynamics and statistics due to Tsallis is capable of explaining this
phenomenon in a natural way. The maximization of the generalized entropy
for this system leads to precisely the same profiles predicted by the
Restricted Minimum Enstrophy theory of Huang and Driscoll. This makes possible
the construction of a comprehensive thermodynamic description of Euler
turbulence.Comment: 15 pages, RevTe
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It's not just what you say: Relationships of HIV dislosure and risk reduction among MSM in the post-HAART era
In the post-HAART era, critical questions arise as to what factors affect disclosure decisions and how these decisions are associated with factors such as high-risk behaviors and partner variables. We interviewed 1,828 HIV-positive men who have sex with men (MSM), of whom 46% disclosed to all partners. Among men with casual partners, 41.8% disclosed to all of these partners and 21.5% to none. Disclosure was associated with relationship type, perceived partner HIV status and sexual behaviors. Overall, 36.5% of respondents had unprotected anal sex (UAS) with partners of negative/unknown HIV status. Of those with only casual partners, 80.4% had >1 act of UAS and 58% of these did not disclose to all partners. This 58% were more likely to self-identify as gay (versus bisexual), be aware of their status for <5 years and have more partners. Being on HAART, viral load and number of symptoms were not associated with disclosure. This study—the largest conducted to date of disclosure among MSM and one of the few conducted post-HAART—indicates that almost 1/5th reported UAS with casual partners without disclosure, highlighting a public health challenge. Disclosure needs to be addressed in the context of relationship type, partner status and broader risk-reduction strategies
Classtalk: A Classroom Communication System for Active Learning
This pdf file is an article describing the advantages of using Classtalk technology in the classroom to enhance classroom communication. Classtalk technology cab facilitate the presentation of questions for small group work, collec the student answers and then display histograms showing how the class answered. This new communication technology can help instructors create a more interactive, student centered classroom, especially when teaching large courses. The article describes Classtalk as a very useful tool not only for engaging students in active learning, but also for enhancing the overall communication within the classroom. This article is a selection from the electronic Journal for Computing in Higher Education. Educational levels: Graduate or professional
Universal features of the order-parameter fluctuations : reversible and irreversible aggregation
We discuss the universal scaling laws of order parameter fluctuations in any
system in which the second-order critical behaviour can be identified. These
scaling laws can be derived rigorously for equilibrium systems when combined
with the finite-size scaling analysis. The relation between order parameter,
criticality and scaling law of fluctuations has been established and the
connexion between the scaling function and the critical exponents has been
found. We give examples in out-of-equilibrium aggregation models such as the
Smoluchowski kinetic equations, or of at-equilibrium Ising and percolation
models.Comment: 19 pages, 10 figure
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