Eudaimonic Conceptions of Well-being, Meaning in Life, and Self-Reported Well-Being: Initial Test of a Mediational Model

The current study examined relationships between eudaimonic dimensions of individual conceptions of well-being (e.g., self-development, contribution), meaning in life, and self-reported well-being, and whether meaning in life mediates associations between eudaimonic conception dimensions and well-being. A sample of 275 adult volunteers completed several instruments assessing the above constructs. Results from structural equation modeling (SEM) indicated that eudaimonic conception dimensions were positively associated with both meaning in life and well-being. Further, the relationship between eudaimonic conception dimensions and self-reported well-being was found to be partially mediated by meaning in life. The findings of the current study thus suggest that the experience of meaning in life is one route through which eudaimonic conception of well-being dimensions are associated with self-reported well-being

Novel Catalytic Dielectric Barrier Discharge Reactor for Gas-Phase Abatement of Isopropanol

Catalytic gas-phase abatement of air containing 250ppm of isopropanol (IPA) was carried out with a novel dielectric barrier discharge (DBD) reactor with the inner catalytic electrode made of sintered metal fibers (SMF). The optimization of the reactor performance was carried out by varying the voltage from 12.5 to 22.5kV and the frequency in the range 200-275Hz. The performance was significantly improved by modifying SMF with Mn and Co oxide. Under the experimental conditions used, the MnO x /SMF showed a higher activity towards total oxidation of IPA as compared to CoO x /SMF and SMF electrodes. The complete destruction of 250ppm of IPA was attained with a specific input energy of ∼235J/L using the MnO x /SMF catalytic electrode, whereas, the total oxidation was achieved at 760J/L. The better performance of the MnO x /SMF compared to other catalytic electrodes suggests the formation of short-lived active species on its surface by the in-situ decomposition of ozon

Spectroscopy, Equation Of State And Monopole Percolation In Lattice QED With Two Flavors

Non-compact lattice QED with two flavors of light dynamical quarks is simulated on $16^4$ lattices, and the chiral condensate, monopole density and susceptibility and the meson masses are measured. Data from relatively high statistics runs at relatively small bare fermion masses of 0.005, 0.01, 0.02 and 0.03 (lattice units) are presented. Three independent methods of data analysis indicate that the critical point occurs at $\beta =0.225(5)$ and that the monopole condensation and chiral symmetry breaking transitions are coincident. The monopole condensation data satisfies finite size scaling hypotheses with critical indices compatible with four dimensional percolation. The best chiral equation of state fit produces critical exponents ($\delta=2.31$, $\beta_{mag}=0.763$) which deviate significantly from mean field expectations. Data for the ratio of the sigma to pion masses produces an estimate of the critical index $\delta$ in good agreement with chiral condensate measurements. In the strong coupling phase the ratio of the meson masses are $M_\sigma^2/M_\rho^2\approx 0.35$, $M_{A_1}^2/M_\rho^2\approx 1.4$ and $M_\pi^2/M_\rho^2\approx 0.0$, while on the weak coupling side of the transition $M_\pi^2/M_\rho^2\approx 1.0$, $M_{A_1}^2/M_\rho^2\approx 1.0$, indicating the restoration of chiral symmetry.\footnote{\,^{}}{August 1992}Comment: 21 pages, 24 figures (not included

The use of periodic operation to improve the performance of continuous stirred tank reactors

The influence of enforced periodic concentration variations on a continuous stirred tank reactor was studied theoretically. The unsteady-state-processing becomes advantageous under certain conditions. This can be shown for an irreversible consecutive-competing reaction. The yield and selectivity of the intermediate product can exceed the values obtainable at steady-state-processing in the mentioned reactor

Initial Validation of an Instrument Measuring Psychology-Specific Epistemological Beliefs

Psychology-specific epistemological beliefs are believed to influence students’ approach to and performance in psychology courses. However, empirical research on this topic is limited due in part to a lack of well-validated instruments measuring this construct. The primary objective of the current research was to develop and validate the PsychologySpecific Epistemological Belief Scale (Psych-SEBS), a short self-report instrument measuring psychology-specific epistemological beliefs. Study 1 addresses the structural validity, internal consistency, test-retest reliability, and convergent validity of the PsychSEBS. Study 2 addresses the criterion-related and incremental validity of the PsychSEBS. Findings indicated acceptable psychometric properties of this instrument and its 3 subscales: significance of psychology research, subjective nature of psychology knowledge, and predictability of human behavior. Scores on Psych-SEBS scales were significantly associated with construct-relevant outcomes, including student interest and performance in psychology courses, and explained unique variance in these outcomes beyond that explained by existing instruments

The Block Spin Renormalization Group Approach and Two-Dimensional Quantum Gravity

A block spin renormalization group approach is proposed for the dynamical triangulation formulation of two-dimensional quantum gravity. The idea is to update link flips on the block lattice in response to link flips on the original lattice. Just as the connectivity of the original lattice is meant to be a lattice representation of the metric, the block links are determined in such a way that the connectivity of the block lattice represents a block metric. As an illustration, this approach is applied to the Ising model coupled to two-dimensional quantum gravity. The correct critical coupling is reproduced, but the critical exponent is obscured by unusually large finite size effects.Comment: 10 page

Science Classroom Inquiry (SCI) simulations: A novel method to scaffold science learning

Science education is progressively more focused on employing inquiry-based learning methods in the classroom and increasing scientific literacy among students. However, due to time and resource constraints, many classroom science activities and laboratory experiments focus on simple inquiry, with a step-by-step approach to reach predetermined outcomes. The science classroom inquiry (SCI) simulations were designed to give students real life, authentic science experiences within the confines of a typical classroom. The SCI simulations allow students to engage with a science problem in a meaningful, inquiry-based manner. Three discrete SCI simulations were created as website applications for use with middle school and high school students. For each simulation, students were tasked with solving a scientific problem through investigation and hypothesis testing. After completion of the simulation, 67% of students reported a change in how they perceived authentic science practices, specifically related to the complex and dynamic nature of scientific research and how scientists approach problems. Moreover, 80% of the students who did not report a change in how they viewed the practice of science indicated that the simulation confirmed or strengthened their prior understanding. Additionally, we found a statistically significant positive correlation between students' self-reported changes in understanding of authentic science practices and the degree to which each simulation benefitted learning. Since SCI simulations were effective in promoting both student learning and student understanding of authentic science practices with both middle and high school students, we propose that SCI simulations are a valuable and versatile technology that can be used to educate and inspire a wide range of science students on the real-world complexities inherent in scientific study

Intensification of mass transfer in liquid fluidized beds with inert particles

The influence of inert particles on liq./solid mass transfer is studied in fluidized beds by using a binary-mixt. of solids of differing size and d. The addn. of inert particles of higher d. and smaller diam., e.g. glass beads, exerts remarkable effects on mass transfer coeffs. in comparison to that of mono-component active particles at the same liq. velocity. The extent of the effect on liq.-solid mass transfer coeffs. increases with an increasing fraction of the small inert particles in the mixt. The liq.-solid mass transfer coeffs. for binary-mixts. are well correlated in terms of dimensionless groups and the voidage parameter. [on SciFinder (R)