Perceptions Of Intimate Partner Violence Among Heterosexual, Gay, And Lesbian Couples

The current study examined the perceptions of intimate partner violence. Data were gathered from Fort Hays State University undergraduate participants enrolled on campus and virtually. Participants were assigned to a four-level independent variable (scenario type). Participants were grouped according to their career goal, a two-level independent variable (helping profession and non-helping profession). This study suggests there are differences in perceptions among participants with differing career goals as they pertain to myth acceptance of IPV and homosexuality, and the type of punishment needed for aggressors of IPV. Helping professionals endorsed lower myth acceptance of IPV. There was no significant effect of scenario type. However, a significant difference was found between the FTF and FTM scenario type. No interaction existed between scenario type and myth acceptance of IPV. Helping professionals endorsed lower myth acceptance of homosexuality. There was no significant effect of scenario type and no interaction existed between scenario type and career goal. A significant relationship between career goal and perceptions of punishment for aggressors was found, suggesting participants with helping profession career goals are more likely to endorse higher levels of punishment for aggressors. A significant relationship between career goal and perceptions of severity was not found, suggesting perceptions of severity are fairly consistent among career goals. Limitations and future research are also discussed

Enhancing metabolomic data analysis with Progressive Consensus Alignment of NMR Spectra (PCANS)

<p>Abstract</p> <p>Background</p> <p>Nuclear magnetic resonance spectroscopy is one of the primary tools in metabolomics analyses, where it is used to track and quantify changes in metabolite concentrations or profiles in response to perturbation through disease, toxicants or drugs. The spectra generated through such analyses are typically confounded by noise of various types, obscuring the signals and hindering downstream statistical analysis. Such issues are becoming increasingly significant as greater numbers of large-scale systems or longitudinal studies are being performed, in which many spectra from different conditions need to be compared simultaneously.</p> <p>Results</p> <p>We describe a novel approach, termed Progressive Consensus Alignment of Nmr Spectra (PCANS), for the alignment of NMR spectra. Through the progressive integration of many pairwise comparisons, this approach generates a single consensus spectrum as an output that is then used to adjust the chemical shift positions of the peaks from the original input spectra to their final aligned positions. We characterize the performance of PCANS by aligning simulated NMR spectra, which have been provided with user-defined amounts of chemical shift variation as well as inter-group differences as would be observed in control-treatment applications. Moreover, we demonstrate how our method provides better performance than either template-based alignment or binning. Finally, we further evaluate this approach in the alignment of real mouse urine spectra and demonstrate its ability to improve downstream PCA and PLS analyses.</p> <p>Conclusions</p> <p>By avoiding the use of a template or reference spectrum, PCANS allows for the creation of a consensus spectrum that enhances the signals within the spectra while maintaining sample-specific features. This approach is of greatest benefit when complex samples are being analyzed and where it is expected that there will be spectral features unique and/or strongly different between subgroups within the samples. Furthermore, this approach can be potentially applied to the alignment of any data having spectra-like properties.</p

Agglomeration of As Antisites in As-Rich Low-Temperature GaAs: Nucleation without a Critical Nucleus Size

To investigate the early stages of nucleation and growth of As precipitates in GaAs grown at low substrate temperature, we make use of a self-consistent-charge density-functional based tight-binding method. Since a pair of As antisites already shows a significant binding energy which increases when more As antisites are attached, there is no critical nucleus size. Provided that all excess As has precipitated, the clusters may grow in size since the binding energies increase with increasing agglomeration size. These findings close the gap between experimental investigation of point defects and the detection of nanometer-size precipitates in transmission electron microscopy.Peer reviewe