3,609 research outputs found
Some Investigation of the Ethanol Carbontetrachloride System
The Ethanol Carbontetrachloride system has been investigated with respect to the total vapor pressure, and the partial vapor pressures of the constituents at twenty-five and sixty degrees. The total pressures of different mixtures of Ethanol Carbontetrachloride were determined at twenty-five degrees by means of a bulb to which was sealed a manometer. The total pressure at sixty degrees was measured by means of an apparatus designed by the authors for the rapid and accurate determination of the vapor pressures of liquids that do not readily react with mercury. A description of this apparatus will appear in the Journal of Industrial and Engineering Chemistry. The Partial pressures were determined from the molfraction of each constituent in the vapor. The molfractions of each constituent in the vapor were determined by condensing a small amount of vapor and determining its density. Curves were plotted for each temperature representing the total and partial pressures
A longitudinal investigation of the relationship between unconditional positive self-regard and posttraumatic growth
The present study investigated whether unconditional positive self-regard (UPSR) is associated with subsequent posttraumatic growth (PTG) following the experience of a traumatic life event. A total of 143 participants completed an online questionnaire to assess the experience of traumatic life events, posttraumatic stress, well-being and UPSR (Time 1). Three months later, 76 of the participants completed measures of well-being and perceived PTG (Time 2). Analyses were conducted to test for association between UPSR at Time 1 and perceptions of PTG at Time 2. Results showed that higher UPSR at T1 was associated with higher perceived PTG at Time 2. To measure actual growth, individual differences in well-being were computed between Time 1 and Time 2. Results showed that higher UPSR at T1 was associated with higher actual PTG. Implications of these findings are discussed and future directions for research in this area considered. Specifically, results are consistent with a person-centered understanding of therapeutic approaches to the facilitation of PT
Open borders, closed minds: the discursive construction of national identity in North Cyprus
The article investigates the discursive construction of a Turkish Cypriot national
identity by the newspapers in North Cyprus. It questions the representation and
reconstruction processes of national identity within the press and examines the
various practices employed to mobilize readers around certain national imaginings.
Using Critical Discourse Analysis, the article analyses news reports of the opening of
border crossings in Cyprus in 2003, based on their content, the strategies used in the
production of national identity and the linguistic means employed in the process. In this
way, the nationalist tendencies embedded in news discourses, as well as discriminatory
and exclusive practices, are sought out
GPU Accelerated Adaptive Wave Propagation Algorithm
The GPU performance of the adaptive wave propagation algorithm is critical to its effectiveness in simulating wave propagation in complex media. This algorithm employs adaptive mesh refinement to improve resolution in areas where the wavefield is changing rapidly. The algorithm\u27s performance is significantly improved by the use of graphics processing units (GPUs), which offer faster computation times than traditional central processing units (CPUs). According to the studies in this poster, GPU acceleration of the adaptive wave propagation algorithm provides significant improvements in simulation speed and scalability, as seen in the simulated examples: scalar advection, shallow water equations, euler, and acoustics. When compared to traditional CPU-based algorithms, the algorithm can handle larger models and produce higher resolution results at a faster rate. The algorithm\u27s efficiency and effectiveness are determined by the specific hardware and software configuration of the GPU used; for this study, we used INL Borah
Joint and individual analysis of breast cancer histologic images and genomic covariates
A key challenge in modern data analysis is understanding connections between
complex and differing modalities of data. For example, two of the main
approaches to the study of breast cancer are histopathology (analyzing visual
characteristics of tumors) and genetics. While histopathology is the gold
standard for diagnostics and there have been many recent breakthroughs in
genetics, there is little overlap between these two fields. We aim to bridge
this gap by developing methods based on Angle-based Joint and Individual
Variation Explained (AJIVE) to directly explore similarities and differences
between these two modalities. Our approach exploits Convolutional Neural
Networks (CNNs) as a powerful, automatic method for image feature extraction to
address some of the challenges presented by statistical analysis of
histopathology image data. CNNs raise issues of interpretability that we
address by developing novel methods to explore visual modes of variation
captured by statistical algorithms (e.g. PCA or AJIVE) applied to CNN features.
Our results provide many interpretable connections and contrasts between
histopathology and genetics
Topological phase transition between composite-fermion and Pfaffian daughter states near {\nu} = 1/2 FQHS
=1/2 is among the most enigmatic many-body phases in two-dimensional
electron systems as it appears in the ground-state rather than an excited
Landau level. It is observed in wide quantum wells where the electrons have a
bilayer charge distribution with finite tunneling. Whether this 1/2 FQHS is
two-component (Abelian) or one-component (non-Abelian) has been debated since
its experimental discovery over 30 years ago. Here, we report strong 1/2 FQHSs
in ultrahigh-quality, wide, GaAs quantum wells, with transport energy gaps up
to 4K, among the largest gaps reported for any even-denominator FQHS.
The 1/2 FQHS is flanked by numerous, Jain-sequence FQHSs at
=/(21) up to =8/17 and 9/17. Remarkably, as we raise the
density and strengthen the 1/2 FQHS, the 8/17 and 7/13 FQHSs suddenly become
strong, much stronger than their neighboring high-order FQHSs. Insofar as FQHSs
at =8/17 and 7/13 are precisely the theoretically-predicted, simplest,
daughter states of the one-component Pfaffian 1/2 FQHS, our data suggest a
topological phase-transition of 8/17 and 7/13 FQHSs from the Jain-states to the
daughter states of the Pfaffian, and that the parent 1/2 FQHS we observe is the
Pfaffian state.Comment: 19 pages, 9 figure
Scholar-activists in an expanding European food sovereignty movement
This article analyzes the roles, relations, and positions of scholar-activists in the European food sovereignty movement. In doing so, we document, make visible and question the political dimensions of researchers' participation in the movement. We argue that scholar-activists are part of the movement, but are distinct from the affected constituencies, put in place to ensure adequate representation of key movement actors. This is because scholar-activists lack a collective identity, have no processes to formulate collective demands, and no mechanisms for inter-researcher and researchers-movement communication. We reflect on whether and how scholar-activists could organize, and discuss possible pathways for a more cohesive and stronger researcher engagement in the movement.</p
The METCRAX II Field Experiment: A Study of Downslope Windstorm-Type Flows in Arizona\u2019s Meteor Crater
The second Meteor Crater Experiment (METCRAX II) was conducted in October 2013 at Arizona\u2019s Meteor Crater. The experiment was designed to investigate nighttime downslope windstorm 12type flows that form regularly above the inner southwest sidewall of the 1.2-km diameter crater as a southwesterly mesoscale katabatic flow cascades over the crater rim. The objective of METCRAX II is to determine the causes of these strong, intermittent, and turbulent inflows that bring warm-air intrusions into the southwest part of the crater. This article provides an overview of the scientific goals of the experiment; summarizes the measurements, the crater topography, and the synoptic meteorology of the study period; and presents initial analysis results
DEVELOPMENT OF CLINICAL AND PATIENT-REPORTED QUALITY METRICS FOR MULTIPLE SCLEROSIS: A UK PILOT STUDY REPORT
BackgroundQuality standards (QS) for people with multiple sclerosis (PwMS) are suboptimal, ambiguous and restricted to certain patient subgroups and care pathways.AimDevelop and pilot MS metrics measuring service provision quality to identify areas for improvement.MethodsA multidisciplinary Working Group developed clinician and patient-reported metrics and standardised data collection forms through an iterative process.ResultsMetrics covered: referral; diagnosis; treatment; annual review; general management; education. Pilot (n=76) showed: 31% of PwMS were referred to MS specialist within 4 weeks of suspected/confirmed demyelination; 28% and 56% had uncomplicated MS confirmed and were offered specialist MS nurse appointment, respectively, within 4 weeks of specialist referral; 75% of eligible PwMS were offered disease-modifying therapy within 8 weeks of confirmed MS diagnosis; 85% had comprehensive multidisciplinary team (MDT) annual review; 90% had a defined point of contact within the MS service; 86% of unscheduled contacts by PwMS, MDT or general practitioners were responded to within 3 days; 53% of MS services maintained a single database of PwMS; and 76% of PwMS were offered ongoing education. Data collection continues and updated findings will be reported.DiscussionMS metrics/data forms are feasible for routine clinical settings, simple to interpret and provide a valuable benchmark for guiding MS service improvements
Everyday cosmopolitanism in representations of Europe among young Romanians in Britain
The paper presents an analysis of everyday cosmopolitanism in constructions of Europe among young Romanian nationals living in Britain. Adopting a social representations approach, cosmopolitanism is understood as a cultural symbolic resource that is part of everyday knowledge. Through a discursively-oriented analysis of focus group data, we explore the ways in which notions of cosmopolitanism intersect with images of Europeanness in the accounts of participants. We show that, for our participants, representations of Europe are anchored in an Orientalist schema of West-vs.-East, whereby the West is seen as epitomising European values of modernity and progress, while the East is seen as backward and traditional. Our findings further show that representations of cosmopolitanism reinforce this East/West dichotomy, within a discourse of ‘Occidental cosmopolitanism’. The paper concludes with a critical discussion of the diverse and complex ideological foundations of these constructions of European cosmopolitanism and their implications
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