Refining Your Results in Alma Analytics

Analyzing your data is important for all aspects of efficient library operations. We will be sharing some ideas to help you effectively gather and analyze your data using Alma Analytics. After our presentation, you will know how and why to create bins, and how to save a filter for reuse in another analysis. We will also be sharing a couple of useful yet complicated formulas that are not included in Alma documentation

Carpe Data with Alma Analytics

Capturing your data is vital to the smooth functioning of any library. We will be providing some tips and tricks to help you gather and analyze your data using Alma Analytics. After the presentation you will know how to gather data within a date period (i.e., all items that circulated in the last 30 days or between a date period), filter your data, count data, subtract one set of numbers from another, and import your results into a set in Alma to further analyze or manipulate your data. We will also include any formulas that we have found to be useful and not necessarily in the Ex Libris documentation. The presentation will be geared to advanced beginner Analytics users. We will be assuming that those who attend the presentation will know how to search the Analytics shared folders for analyses and start a new Analysis

Personality differences in monozygotic twins discordant for cannabis use.

Aims: To explore the association between cannabis and personality scores when genetic background and shared environment are controlled for. Design: The co-twin control design. This design provides a powerful method for controlling for the effects of potentially confounding familial factors that may act to predispose subjects both to cannabis use and a particular personality profile. Participants: 118 monozygotic twin pairs discordant for cannabis use. Measurements: Data on personality and cannabis use were obtained through a questionnaire survey. The Dutch Sensation Seeking List was used to assess various aspects of sensation seeking. The Amsterdamse Biografische Vragenlijst assessed extraversion, neuroticism, somatic complaints and test attitude. Findings: The affected twins scored higher on all scales than their unaffected co-twins, especially on experience seeking (P = 0.004), total sensation seeking score (P = 0.004) and neuroticism (P = 0.039). Differences were also observed when items on drug use were removed from the experience seeking scale (P = 0.037) and total sensation seeking score (P = 0.009) although these differences were no longer significant after Bonferoni correction (P < 0.005). Conclusions: Cannabis use is associated with a higher score on personality scales. This result was obtained in a sample of monozygotic twins discordant for cannabis use. Thus, at least part of the association between cannabis use and experience seeking cannot be attributed to underlying genetic or shared environmental factors that influence both personality and cannabis use and must be explained by unique environmental influences. © 2007 The Authors

Electronic quantization in dielectric nanolaminates

The scientific background in the field of the laser induced damage processes in optical coatings has been significantly extended during the last decades. Especially for the ultra-short pulse regime a clear correlation between the electronic material parameters and the laser damage threshold could be demonstrated. In the present study, the quantization in nanolaminates is investigated to gain a deeper insight into the behavior of the blue shift of the bandgap in specific coating materials as well as to find approximations for the effective mass of the electrons. The theoretical predictions are correlated to the measurements. © 2016 SPIE. Downloading of the abstract is permitted for personal use only.Ministry for Science and Culture of Lower SaxonyVolkswagen Stiftun

Analysis of medium resolution spectra by automated methods - application to M55 and omega Centauri

We have employed feedforward neural networks trained on synthetic spectra in the range 3800 to 5600 AA with resolutions of 2-3 AA to determine metallicities from spectra of about 1000 main-sequence turn-off, subgiant and red giant stars in the globular clusters M55 and omega Cen. The overall metallicity accuracies are of the order of 0.15 to 0.2 dex. In addition, we tested how well the stellar parameters logg and Teff can be retrieved from such data without additional colour or photometric information. We find overall uncertainties of 0.3 to 0.4 dex for logg and 140 to 190 K for Teff. In order to obtain some measure of uncertainty for the determined values of [Fe/H], logg and Teff, we applied the bootstrap method for the first time to neural networks for this kind of parametrization problem. The distribution of metallicities for stars in omega Cen clearly shows a large spread in agreement with the well known multiple stellar populations in this cluster.Comment: 13 pages, 9 figures, accepted for publication in A&

Critical State Flux Penetration and Linear Microwave Vortex Response in YBa_2Cu_3O_{7-x} Films

The vortex contribution to the dc field (H) dependent microwave surface impedance Z_s = R_s+iX_s of YBa_2Cu_3O_{7-x} thin films was measured using suspended patterned resonators. Z_s(H) is shown to be a direct measure of the flux density B(H) enabling a very precise test of models of flux penetration. Three regimes of field-dependent behavior were observed: (1) Initial flux penetration occurs on very low field scales H_i(4.2K) 100Oe, (2) At moderate fields the flux penetration into the virgin state is in excellent agreement with calculations based upon the field-induced Bean critical state for thin film geometry, parametrized by a field scale H_s(4.2K) J_c*d 0.5T, (3) for very high fields H >>H_s, the flux density is uniform and the measurements enable direct determination of vortex parameters such as pinning force constants \alpha_p and vortex viscosity \eta. However hysteresis loops are in disagreement with the thin film Bean model, and instead are governed by the low field scale H_i, rather than by H_s. Geometric barriers are insufficient to account for the observed results.Comment: 20 pages, LaTeX type, Uses REVTeX style files, Submitted to Physical Review B, 600 dpi PostScript file with high resolution figures available at http://sagar.physics.neu.edu/preprints.htm