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Investigations of the C8S3 J-aggregate
No full texttextThis research project entails analyses of both alcoholic route C8S3 J-aggregate bundles and the interactions of a polyethylene glycol additive with alcoholic route C8S3 J-aggregates. First, the C8S3 J-aggregate bundles are characterized by both polarized and non-polarized spectroscopy methods. Orientation of the tubular bundled molecular complex was achieved, depending on the experiment, through a combination of flow cell experiments and cover slip deposited sample analysis. Next, isolated alcoholic route C8S3 J-aggregates were investigated using a polyethylene glycol (PEG) additive which has been shown, through absorbance and fluorescence emission spectroscopy, to selectively and reversibly remove the outer wall of the J-aggregate tubule. Spectroscopic analyses have indicated that the addition of a PEG additive left behind an in-tact inner wall tubule without the use of oxidizing agents, a feat never before accomplished with the C8S3 monomer.Chemistr
PHANGS-MUSE sample HII regions catalog : J/A+A/658/A188
No full textFor a complete and detailed description of the PHANGS-MUSE sample and data we redirect the reader to Emsellem et al. (2021, in prep., arXiv:2110.03708), while in this section we summarize the overall properties of the sample and provide essential details of the data reduction and analysis pipelines. The PHANGS-MUSE sample includes 19 nearby (D(2 data files)
Sample-size dependence of the magnetic critical current density in MgB2 superconductors
No full textSample size dependent magnetic critical current density has been observed in magnesium diboride superconductors. At high fields, larger samples provide higher critical current densities, while at low fields, larger samples give rise to lower critical current densities. The explanation for this surprising result is proposed in this study based on the electric field generated in the superconductors. The dependence of the current density on the sample size has been derived as a power law j}R1/n @n is the n factor characterizing E2j curve E 5Ec( j/ jc)n]. This dependence provides one with a method to derive the n factor and can also be used to determine the dependence of the activation energy on the current density
Penalized sample average approximation methods for stochastic mathematical programs with complementarity constraints
No full textThis paper considers a one-stage stochastic mathematical program with a complementarityconstraint (SMPCC) where uncertainties appear in both the objective function and the comple-mentarity constraint, and an optimal decision on both upper and lower level decision variables mustbe made before the realization of the uncertainties. A partially exactly penalized sample averageapproximation (SAA) scheme is proposed to solve the problem. Asymptotic convergence of optimalsolutions and stationary points of the penalized SAA problem is carried out. It is shown undersome moderate conditions that the statistical estimators obtained from solving the penalized SAAproblems converge almost surely to its true counterpart as the sample size increases
Measurement of the branching fraction
No full textThe B
0
s
→ J/ψK
0
S
branching fraction is measured in a data sample corresponding to 0.41 fb−1
of integrated luminosity collected with the LHCb detector at the LHC. This channel is sensitive to
the penguin contributions affecting the sin 2β measurement from B
0
→ J/ψK
0
S
. The time-integrated
branching fraction is measured to be B(B
0
s
→ J/ψK
0
S
) = (1.83±0.28)×10−5
. This is the most precise
measurement to date
The mainstream primary classroom as a language-learning environment for children with severe and persistent language impairment - implications of recent language intervention research
No full textMany UK children with severe and persistent language impairment (SLI) attend local mainstream schools. Although this should provide an excellent language-learning environment, opportunities may be limited by difficulties in sustaining time-consuming, child-specific learning activities; restricted co-professional working, and the complex classroom environment. Two language intervention studies in mainstream Scottish primary schools showed children with SLI receiving intervention from speech and language therapists (SLTs) or their assistants made more progress in expressive language than similar children receiving intervention from education staff. Potential reasons for this difference are sought in the amount of tailored language-learning activity undertaken; how actively school staff initiated contact with SLTs; and the language demands of the classroom. Tailored language learning appears to be a differentiating factor. A language support model, reflecting views of teachers and SLTs about encouraging language development for children with SLI within the ecology of the mainstream primary classroom, is also outlined
Mr. J. D. Hayes, Interior of Sample Room
No full textImage shows the interior of a miscellaneous dry goods store in Salt Lake City.Image included in both the Shipler and the Classified photograph collections
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