Book Review: The Strange Career of Bilingual Education in Texas

Arriving in Texas as a recently graduated Title VII Bilingual Education Doctoral Fellow in the latter part of 1980, I was particularly eager to learn more about the history of bilingual education in the state, especially the strange career alluded to in this volume\u27s title. Before my arrival, I had worked in bilingual education in Illinois and western New York. Was the history of bilingual education in Texas stranger than in other states

The impact of personal reputation on leader emergence in autonomous work teams : theoretical considerations for future research

Purpose – Research has demonstrated that varying degrees and combinations of individual traits, behaviors and characteristics influence the emergence of leaders in teams. While existing models have shown that such variables affect leader choice independently and interactively, the overall findings suggest that there is still a lack of research on a potentially significant factor, the impact of personal reputation on leader selection in autonomous work teams (AWTs), an increasingly ubiquitous team practice in organizations. This preliminary review thus aims to offer a general overview of personal reputation and its effects on leader emergence in the context of AWTs. Design/methodology/approach – By surveying extant literature on team leader emergence, this review has identified that the potential impact of personal reputation on leader selection in teams is significant yet largely ignored. Findings – Models of leader emergence in teams should incorporate the realistic assumption that teams formed in organizations are often comprised of individuals who have information on others either directly or indirectly. Personal reputation based on an individual’s history thus moderates how one’s behaviors or traits exhibited become contextualized in the overall assessment of leader desirability and selection in teams. Research limitations/implications – Based on a review of existing research on leadership emergence and personal reputation, this work contends that the external validity and predictive value of leader emergence models would greatly benefit from the inclusion of employee reputations as a moderating variable in the future assessment of the leader emergence process in AWTs. Practical implications – By designing models that explain the potential effects of personal reputations on leader emergence in self-managed teams, team members and managers can be better elucidated and ultimately improve their understanding of the process of the evaluation and selection of team leaders. Originality/value – Despite the prolific research on leader emergence, there is still a paucity of studies examining personal reputational effects on leader selection, especially in the context of AWTs. This work is the first review piece calling for the inclusion of personal reputation, a substantive factor overlooked and excluded in previous models, to enhance the current understanding of leader emergence in AWTs.info:eu-repo/semantics/publishedVersio

Book Review: The Strange Career of Bilingual Education in Texas

Arriving in Texas as a recently graduated Title VII Bilingual Education Doctoral Fellow in the latter part of 1980, I was particularly eager to learn more about the history of bilingual education in the state, especially the strange career alluded to in this volume\u27s title. Before my arrival, I had worked in bilingual education in Illinois and western New York. Was the history of bilingual education in Texas stranger than in other states

Generalized Boltzmann Equation in a Manifestly Covariant Relativistic Statistical Mechanics

We consider the relativistic statistical mechanics of an ensemble of $N$ events with motion in space-time parametrized by an invariant ``historical time'' $\tau .$ We generalize the approach of Yang and Yao, based on the Wigner distribution functions and the Bogoliubov hypotheses, to find the approximate dynamical equation for the kinetic state of any nonequilibrium system to the relativistic case, and obtain a manifestly covariant Boltzmann-type equation which is a relativistic generalization of the Boltzmann-Uehling-Uhlenbeck (BUU) equation for indistinguishable particles. This equation is then used to prove the $H$-theorem for evolution in $\tau .$ In the equilibrium limit, the covariant forms of the standard statistical mechanical distributions are obtained. We introduce two-body interactions by means of the direct action potential $V(q),$ where $q$ is an invariant distance in the Minkowski space-time. The two-body correlations are taken to have the support in a relative $O( 2,1)$-invariant subregion of the full spacelike region. The expressions for the energy density and pressure are obtained and shown to have the same forms (in terms of an invariant distance parameter) as those of the nonrelativistic theory and to provide the correct nonrelativistic limit

Optical modeling of agricultural fields and rough-textured rock and mineral surfaces

Review was made of past models for describing the reflectance and/or emittance properties of agricultural/forestry and geological targets in an effort to select the best theoretical models. An extension of the six parameter Allen-Gayle-Richardson model was chosen as the agricultural plant canopy model. The model is used to predict the bidirectional reflectance of a field crop from known laboratory spectra of crop components and approximate plant geometry. The selected geological model is based on Mie theory and radiative transfer equations, and will assess the effect of textural variations of the spectral emittance of natural rock surfaces

Galilean limit of equilibrium relativistic mass distribution for indistinguishable events

The relativistic distribution for indistinguishable events is considered in the mass-shell limit $m^2\cong M^2,$ where $M$ is a given intrinsic property of the events. The characteristic thermodynamic quantities are calculated and subject to the zero-mass and the high-temperature limits. The results are shown to be in agreement with the corresponding expressions of an on-mass-shell relativistic kinetic theory. The Galilean limit $c\rightarrow \infty ,$ which coincides in form with the low-temperature limit, is considered. The theory is shown to pass over to a nonrelativistic statistical mechanics of indistinguishable particles.Comment: Report TAUP-2136-9

A New Relativistic High Temperature Bose-Einstein Condensation

We discuss the properties of an ideal relativistic gas of events possessing Bose-Einstein statistics. We find that the mass spectrum of such a system is bounded by $\mu \leq m\leq 2M/\mu _K,$ where $\mu$ is the usual chemical potential, $M$ is an intrinsic dimensional scale parameter for the motion of an event in space-time, and $\mu _K$ is an additional mass potential of the ensemble. For the system including both particles and antiparticles, with nonzero chemical potential $\mu ,$ the mass spectrum is shown to be bounded by $|\mu |\leq m\leq 2M/\mu _K,$ and a special type of high-temperature Bose-Einstein condensation can occur. We study this Bose-Einstein condensation, and show that it corresponds to a phase transition from the sector of continuous relativistic mass distributions to a sector in which the boson mass distribution becomes sharp at a definite mass $M/\mu _K.$ This phenomenon provides a mechanism for the mass distribution of the particles to be sharp at some definite value.Comment: Latex, 22 page

Approximate resonance states in the semigroup decomposition of resonance evolution

The semigroup decomposition formalism makes use of the functional model for $C_{.0}$ class contractive semigroups for the description of the time evolution of resonances. For a given scattering problem the formalism allows for the association of a definite Hilbert space state with a scattering resonance. This state defines a decomposition of matrix elements of the evolution into a term evolving according to a semigroup law and a background term. We discuss the case of multiple resonances and give a bound on the size of the background term. As an example we treat a simple problem of scattering from a square barrier potential on the half-line.Comment: LaTex 22 pages 3 figure

Equilibrium Relativistic Mass Distribution for Indistinguishable Events

A manifestly covariant relativistic statistical mechanics of the system of $N$ indistinguishable events with motion in space-time parametrized by an invariant ``historical time'' $\tau$ is considered. The relativistic mass distribution for such a system is obtained from the equilibrium solution of the generalized relativistic Boltzmann equation by integration over angular and hyperbolic angular variables. All the characteristic averages are calculated. Expressions for the pressure and the density of events are found and the relativistic equation of state is obtained. The Galilean limit is considered; the theory is shown to pass over to the usual nonrelativistic statistical mechanics of indistinguishable particles.Comment: TAUP-2115-9