Anolis barkeri

Number of Pages: 3Integrative BiologyGeological Science

Chilabothrus subflavus

Number of pages = 30Geological SciencesIntegrative Biolog

Measuring Teacher Effectiveness through Hierarchical Linear Models: Exploring Predictors of Student Achievement and Truancy

This study explored significant predictors of student’s Grade Point Average (GPA) and truancy (days absent), and also determined teacher effectiveness based on proportion of variance explained at teacher level model. We employed a two-level hierarchical linear model (HLM) with student and teacher data at level-1 and level-2 models, respectively. Using the data from one of the largest urban school districts in the United States, the analysis identified several significant intervening and demographic predictors at the student level and two significant predictors at the teacher level. The percentages of variance explained at the teacher level ranged from 12% to 15% with ‘small’ to ‘medium’ effect sizes

Erythrolamprus dorsocorallinus (Esqueda, Natera, La Marca & Ilija-Fistar, 2005) (Squamata: Dipsadidae): range extension, new country record, and comments on color pattern

We present a new country record and significant range extension of Erythrolamprus dorsocorallinus from Bolivia. Locality data on this species is lacking and this account significantly contributes to the knowledge its distributional status throughout South America.

SU(2) lattice gauge theory on a quantum annealer

Lattice gauge theory is an essential tool for strongly interacting non-Abelian fields, such as those in quantum chromodynamics where lattice results have been of central importance for several decades. Recent studies suggest that quantum computers could extend the reach of lattice gauge theory in dramatic ways, but the usefulness of quantum annealing hardware for lattice gauge theory has not yet been explored. In this work, we implement SU(2) pure gauge theory on a quantum annealer for lattices comprising a few plaquettes in a row with a periodic boundary condition. Numerical results are obtained from calculations on D-Wave Advantage hardware for eigenvalues, eigenvectors, vacuum expectation values, and time evolution. The success of this initial exploration indicates that the quantum annealer might become a useful hardware platform for some aspects of lattice gauge theories.Comment: 19 pages, 10 figure

Mussurana bicolor (Peracca, 1904) (Squamata, Colubridae): additional country records and first list of voucher specimens from Bolivia

We present country records and a list of voucher specimens for Mussurana bicolor (Peracca, 1904) (Serpentes, Colubridae) from Bolivia. There is scarce information on museum specimens and locality data from Bolivia for this species in the scientific literature. Additionally, we discuss two newly collected specimens from the Llanos de Moxos, a floodplain in the Beni Department. This account contributes to the knowledge of the northwestern distributional status of M. bicolor and summarizes available data for Bolivia

Texas Parks & Wildlife

Magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas