140 research outputs found
Bit by Bit: Household Characteristics of Cryptocurrency Owners — Early Evidence From the 2019 Survey of Consumer Finances
Developments in financial technology over the past decade have increased the importance and use of cryptocurrency, though not much is known about the characteristics of cryptocurrency owners. Data on the ownership of cryptocurrency by U.S. households has recently been made available via the 2019 Survey of Consumer Finances. In the present research we identify key aspects that differentiate cryptocurrency owning households from those that do not. We find that households owning cryptocurrency tend to have a higher risk profile, especially pertaining to decisions concerning other investments, and demonstrate more financial acumen than households that do not own cryptocurrency. This has important implications as cryptocurrency ownership becomes more mainstream
The Roots of Verbal Meaning
This book explores possible and impossible word meanings, with a specific focus on the meanings of verbs. It adopts the now common view that verb meanings consist at least partly of an event structure, made up of an event template describing the verb’s broad temporal and causal contours that occurs across lots of verbs and groups them into semantic and grammatical classes, plus an idiosyncratic root describing specific, real world states and actions that distinguish verbs with the same template. While much work has focused on templates, less work has addressed the truth conditional contributions of roots, despite the importance of a theory of root meaning in fully defining the predictions event structural approaches make. This book addresses this lacuna, exploring two previously proposed constraints on root meaning: The Bifurcation Thesis of Roots, whereby roots never introduce the meanings introduced by templates, and Manner/Result Complementarity, which has as a component that roots can describe either a manner or a result state but never both at the same time. Two extended case studies, on change-of-state verbs and ditransitive verbs of caused possession, show that neither hypothesis holds, and that ultimately there may be no constraints on what a root can mean. Nonetheless, the book argues that event structures still have predictive value, and it presents a new theory of possible root meanings and how they interact with event templates that produces a new typology of possible verbs, albeit one where not just templates but also roots determine systematic semantic and grammatical properties
Pharmacological Approaches For the Management of Patients with Moderately Elevated Triglycerides (150-499 mg/dL)
Hypertriglyceridemia, defined as serum triglyceride (TG) levels \u3e 150 mg/dL, now affects over one-quarter of the U.S. adult population and is associated with an increased risk of atherosclerotic cardiovascular disease. Available guidelines for managing hypertriglyceridemia vary with respect to triglyceride thresholds and severity of disease. Lifestyle modifications and management of secondary causes (e.g., diabetes) remain the first step in managing hypertriglyceridemia, with pharmacotherapy reserved to reduce the risk of pancreatitis and/or further reduce TG levels. Several classes of lipid-lowering agents are available with variable TG-lowering efficacy. While there is no consensus regarding the choice of initial TG-lowering pharmacotherapy, there is general agreement that the decision depends on the degree of hypertriglyceridemia and atherosclerotic cardiovascular disease risk. This review will discuss available and emerging lipid-lowering therapies for the management of moderately elevated TG, defined as TG 150-499 mg/dL
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Practical Considerations for Using Exploratory Factor Analysis in Educational Research
The uses and methodology of factor analysis are widely debated and discussed, especially the issues of rotational use, methods of confirmatory factor analysis, and adequate sample size. The variety of perspectives and often conflicting opinions can lead to confusion among researchers about best practices for using factor analysis. The focus of the present review is to clarify terminology, identify key issues, and clarify areas of debate regarding best practices and functions of factor analytic procedures., The conclusions and implications drawn should be useful to researchers in education, psychology, and cognate social fields who employ factor analytic procedures or evaluate research using factor analytic methods. Accessed 27,993 times on https://pareonline.net from March 05, 2013 to December 31, 2019. For downloads from January 1, 2020 forward, please click on the PlumX Metrics link to the right
High-pressure polymorphism in L-threonine between ambient pressure and 22 GPa
The crystal structure of l-threonine has been studied to a maximum pressure of 22.3 GPa using single-crystal X-ray and neutron powder diffraction. The data have been interpreted in the light of previous Raman spectroscopic data by Holanda et al. (J. Mol. Struct. (2015), 1092, 160-165) in which it is suggested that three phase transitions occur at ca. 2 GPa, between 8.2 and 9.2 GPa and between 14.0 and 15.5 GPa. In the first two of these transitions the crystal retains its P212121 symmetry, in the third, although the unit cell dimensions are similar either side of the transition, the space group symmetry drops to P21. The ambient pressure form is labelled phase I, with the successive high-pressure forms designated I′, II and III, respectively. Phases I and I′ are very similar, the transition being manifested by a slight rotation of the carboxylate group. Phase II, which was found to form between 8.5 and 9.2 GPa, follows the gradual transformation of a long-range electrostatic contact becoming a hydrogen bond between 2.0 and 8.5 GPa, so that the transformation reflects a change in the way the structure accommodates compression rather than a gross change of structure. Phase III, which was found to form above 18.2 GPa in this work, is characterised by the bifurcation of a hydroxyl group in half of the molecules in the unit cell. Density functional theory (DFT) geometry optimisations were used to validate high-pressure structural models and PIXEL crystal lattice and intermolecular interaction energies are used to explain phase stabilities in terms of the intermolecular interactions
Two types of states: A cross-linguistic study of change-of-state verb roots
Event structural theories decompose verb meanings into an event template and idiosyncratic root. Many mainstream theories assume a bifurcation in the kinds of entailments contributed by roots and templates, in particular that lexical entailments of change of an individual in change-of-state verbs are only introduced by templates, not roots. We argue against such theories by comparing Levin's (1993 non-deadjectival vs. deadjectival change-of-state verb roots (e.g. crack vs. red roots). A broad-scale typological study reveals that red-type roots tend to have simple (e.g. non-deverbal) stative forms, but crack-type roots do not. Semantic studies of Kakataibo and English show that terms built on crack-type roots always entail change, while terms based on red-type roots may not. We thus suggest that crack-type roots entail change-of-state, contra Bifurcation
The 100 most eminent psychologists of the 20th century.
A rank-ordered list was constructed that reports the first 99 of the 100 most eminent psychologists of the 20th century. Eminence was measured by scores on 3 quantitative variables and 3 qualitative variables. The quantitative variables were journal citation frequency, introductory psychology textbook citation frequency, and survey response frequency. The qualitative variables were National Academy of Sciences membership, election as American Psychological Association (APA) president or receipt of the APA Distinguished Scientific Contributions Award, and surname used as an eponym. The qualitative variables were quantified and combined with the other 3 quantitative variables to produce a composite score that was then used to construct a rank-ordered list of the most eminent psychologists of the 20th century. The discipline of psychology underwent a remarkable transformation during the 20th cen-tury, a transformation that included a shift away from the European-influenced philosophical psychology of the late 19th century to th
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