Relationships Between Personality Factors, Stress and GPA

We examined correlations among personality traits, stress, and GPA. We compared stress levels from the early 2000s to now

Absorption in Ultra-Peripheral Nucleus-Atom Collisions in Crystal

The Glauber theory description of particle- and nucleus-crystal Coulomb interactions at high-energy is developed. The allowance for the lattice thermal vibrations is shown to produce strong absorption effect which is of prime importance for quantitative understanding of the coherent Coulomb excitation of ultra-relativistic particles and nuclei passing through the crystal.Comment: 8 pages, LaTe

Flow Index: a novel, non-invasive, continuous, quantitative method to evaluate patient inspiratory effort during pressure support ventilation

Background: The evaluation of patient effort is pivotal during pressure support ventilation, but a non-invasive, continuous, quantitative method to assess patient inspiratory effort is still lacking. We hypothesized that the concavity of the inspiratory flow-time waveform could be useful to estimate patient’s inspiratory effort. The purpose of this study was to assess whether the shape of the inspiratory flow, as quantified by a numeric indicator, could be associated with inspiratory effort during pressure support ventilation. Methods: Twenty-four patients in pressure support ventilation were enrolled. A mathematical relationship describing the decay pattern of the inspiratory flow profile was developed. The parameter hypothesized to estimate effort was named Flow Index. Esophageal pressure, airway pressure, airflow, and volume waveforms were recorded at three support levels (maximum, minimum and baseline). The association between Flow Index and reference measures of patient effort (pressure time product and pressure generated by respiratory muscles) was evaluated using linear mixed effects models adjusted for tidal volume, respiratory rate and respiratory rate/tidal volume. Results: Flow Index was different at the three pressure support levels and all group comparisons were statistically significant. In all tested models, Flow Index was independently associated with patient effort (p < 0.001). Flow Index prediction of inspiratory effort agreed with esophageal pressure-based methods. Conclusions: Flow Index is associated with patient inspiratory effort during pressure support ventilation, and may provide potentially useful information for setting inspiratory support and monitoring patient-ventilator interactions

TIMASSS: The IRAS16293-2422 Millimeter And Submillimeter Spectral Survey. I. Observations, calibration and analysis of the line kinematics

While unbiased surveys observable from ground-based telescopes have previously been obtained towards several high mass protostars, very little exists on low mass protostars. To fill up this gap, we carried out a complete spectral survey of the bands at 3, 2, 1 and 0.8 mm towards the solar type protostar IRAS16293-2422. The observations covered about 200\,GHz and were obtained with the IRAM-30m and JCMT-15m telescopes. Particular attention was devoted to the inter-calibration of the obtained spectra with previous observations. All the lines detected with more than 3 sigma and free from obvious blending effects were fitted with Gaussians to estimate their basic kinematic properties. More than 4000 lines were detected (with sigma \geq 3) and identified, yielding a line density of approximatively 20 lines per GHz, comparable to previous surveys in massive hot cores. The vast majority (~2/3) of the lines are weak and due to complex organic molecules. The analysis of the profiles of more than 1000 lines belonging 70 species firmly establishes the presence of two distinct velocity components, associated with the two objects, A and B, forming the IRAS16293-2422 binary system. In the source A, the line widths of several species increase with the upper level energy of the transition, a behavior compatible with gas infalling towards a ~1 Mo object. The source B, which does not show this effect, might have a much lower central mass of ~0.1 Mo. The difference in the rest velocities of both objects is consistent with the hypothesis that the source B rotates around the source A. This spectral survey, although obtained with single-dish telescope with a low spatial resolution, allows to separate the emission from 2 different components, thanks to the large number of lines detected. The data of the survey are public and can be retrieved on the web site http://www-laog.obs.ujf-grenoble.fr/heberges/timasss.Comment: 41 pages (26 pages of online Tables), 7 Tables and 6 Figure

The experience of leaving a valuable object: An investigation of emotional processes related to Hoarding disorder features

: One of the core features of hoarding is a significant resistance to discarding objects, which is fueled by dysfunctional beliefs and unwarranted negative emotions that hoarders tend to feel when disposing of their possessions. To our knowledge, longitudinal studies investigating the psychological effects that people who hoard experience after separating from their valuable possessions have yet to be conducted. Our study's principal aim was to explore psychological processes that individuals with high hoarding features (n = 53; 49.1%) and individuals with low hoarding features (n = 55; 50.9%) experienced when they had to separate from a valuable possession. To do this, we evaluated participants' thoughts and feelings at several time points after they had to leave a valuable object at the University laboratory (evaluations were specifically conducted at baseline, during the week, and at the end of the week). To investigate hoarding and anxiety, as well as depressive, obsessive-compulsive, and emotional processes-related features, a mixed-method approach was employed involving self-report questionnaires, ad hoc surveys, and a daily self-monitoring schedule. Our findings showed that compared to participants with low hoarding features, participants with high hoarding traits: 1) scored higher for anxiety sensitivity, distress tolerance, and emotional dysregulation; 2) reported having more negative emotions when leaving their object; 3) had more intrusive object-related beliefs; and 4) experienced a higher frequency of negative emotions as well as a higher level of distress during the week. Both groups experienced more negative emotions in the first part of the week, which decreased as the time at which participants could receive their object back drew closer. Finally, dysfunctional beliefs about leaving a personal object (Saving Cognitions Inventory), sensitivity to anxiety (Anxiety Sensitivity Index-3), and distress tolerance (Distress Tolerance Scale) contributed to the level of discomfort that participants with higher hoarding scores reported when they had to leave their possession. These results highlight the relevance of emotional processes in the hoarding disorder framework as well as underscore the importance of assessing and treating them in clinical settings

ANOMALOUS HYPERFINE STRUCTURE OF NSF3_{3} IN THE DEGENERATE VIBRATIONAL STATE v5v_{5}=1: LIFTING OF THE PARITY DEGENERACY BY THE FLUORINE SPIN-ROTATION INTERACTION

Author Institution: Institut fur Physikalische Chemie, Universitat Kiel, 24098; Kiel, Germany; Dipartimento di Chimica Fisica e Inorganica, Universita di; Bologna, 40136 Bologna, Italy; Department of Physics and Astronomy, University of British; Columbia, BC V6T 1Z1, CanadaFor the principal isotopomer $^{14}$N$^{32}$S$^{19}$F$_{3}$ of thiazyl trifluoride in the degenerate fundamental state (\textit{v}$_{5}$=$1$), the hyperfine structure has been investigated in the \textit{Q}-branch spectrum between $8$ and $26.5$ GHz using microwave Fourier transform waveguide spectrometers with a resolution limit of $\approx 30$ kHz. In addition to $l$% -type doubling spectra and $l$-type resonance transitions with ($\Delta k$ =$$=$\pm 2$), perturbation-allowed spectra were measured with $\Delta$% ($k-l$) =$\pm 3$, $\pm 6$. The range in $J$ was from $13$ to $61$; for the lower states, $kl$=$-3$, $-2$, $-1$, $0$, $+1$. For all the transitions, the hyperfine patterns observed are predicted to be doublets when only the nitrogen quadrupole Hamiltonian \textbf{H}$_{Q}^{N}$ is taken into account. Doublets were indeed measured for transitions with $\Gamma _{RV}$=$$, where $\Gamma _{RV}$ is the rovibrational symmetry. However, when $\Gamma _{RV}$=$E\leftrightarrow E$, triplets and quartets were observed in addition to doublets. These anomalous hyperfine patterns are shown to be due to the ($\Delta k$=$\pm 1$) and ($\Delta k$=$$) matrix elements of the fluorine spin-rotation Hamiltonian \textbf{H}$$ characterized by the fluorine spin-rotation constants $$\ and $c(2)=(c_{xx}-c_{yy})$, respectively. These terms in \textbf{H}$_{N}^{F}$ lift the parity degeneracy for $\Gamma _{RV}$=$E$. The rovibrational Hamiltonian \textbf{H}$_{RV}$ was adopted from an earlier partner study. A good fit to the hyperfine data was obtained with a standard deviation of $3.1$ kHz. In the fitting process, $12$ rovibrational parameters were varied, while the remaining constants in \textbf{H}$_{RV}$ were left at the values of Ref. ($1$). In addition, $6$ hyperfine parameters were determined: four in \textbf{H}$_{Q}^{N}$, and two in \textbf{H}$_{N}^{F}$. It was found that \leftert c(1)\rightert =7.48(24) kHz and \leftert c(2)\rightert =2.423(22) kHz. This determination of \leftert c(1)\rightert is the first to be reported based on frequency measurements. The key to the observation of the parity doubling lies in the severe mixing into the eigenvectors of basis vectors with several different values of $kl$ as a result of the clustering$^{1}$ of rovibrational levels at low $K$

Sympathetic skin response asymmetry in early stage idiopathic Parkinson's disease

Simultaneous bilateral plantar sympathetic skin response (SSR) was studied in 25 patients with early stage idiopathic Parkinson's disease (IPD), characterized by monolateral motor involvement (Hoehn and Yahr, stage or = 5 times the sensory electrical threshold always assured bilateral plantar responses in all the examined subjects. Amplitude asymmetry between left and right responses was found only in the IPD patients (P < 0.05). The amplitude reduction corresponded to the motor affected side. No analogue latency variation was observed in any group. Independently from the peripheral or central origins of such phenomena, these findings suggest that simultaneous bilateral SSR amplitude evaluation could be useful, in early IPD patients, to demonstrate and to monitor the sympathetic cholinergic dysfunction, despite the lack of autonomic symptoms