Perfectionism as a Predictor of Anxiety in Foreign Language Classrooms among Russian College Students

This study examined perfectionism as a multidimensional personality factor which influences foreign language learning and classroom anxiety. Hierarchical regression analyses confirmed that the two dimensions of perfectionism, adaptive and maladaptive, relate to Foreign Language Classroom Anxiety (FLCA) differently. After controlling for the effects of general anxiety, perceptions of academic performance, and self-reported English fluency, perfectionistic discrepancy (maladaptive aspect) was a significant predictor of FLCA; perfectionistic standards (adaptive aspect) was not. Measures indicated that this multidimensional nature of perfectionism affects Russian students in the context of foreign language classroom anxiety. Implications regarding the prevention and intervention of maladaptive perfectionism among students are discussed, as well as directions for future studies. These findings are important for teachers, students, and experts who may interact with FLCA and perfectionism as well as those who may personally experience it. The possible strategies to reduce anxiety could include discussing unrealistic beliefs and expectations with reference to foreign language learning, accepting mistakes as an integral part of foreign language learning as well as coaching

Understanding hysteresis in carbon dioxide sorption in porous metal-organic frameworks

Two new isostructural microporous coordination frameworks [Mn3(Hpdc)2­(pdc)2] (1) and [Mg3(Hpdc)2­(pdc)2] (2) (pdc2– = pyridine-2,4-dicarboxylate) showing primitive cubic (pcu) topology have been prepared and characterized. The pore aperture of the channels is too narrow for the efficient adsorption of N2; however, both compounds demonstrate substantially higher uptake of CO2 (119.9 mL·g–1 for 1 and 102.5 mL·g–1 for 2 at 195 K, 1 bar). Despite of their structural similarities, 2 shows a typical reversible type I isotherm for adsorption/desorption of CO2, while 1 features a two-step adsorption process with a very broad hysteresis between the adsorption and desorption curves. This behavior can be explained by a combination of density functional theory calculations, sorption, and X-ray diffraction analysis and gives insights into the further development of new sorbents showing adsorption/desorption hysteresis