Correlation Between Teacher Mindset and Perceptions Regarding Coaching, Feedback, And Improved Instructional Practice

The daily demands placed upon teachers are seemingly endless. Yet, it is the teacher’s skills that are the most important factor in influencing student achievement (Dalton, 1998; National Board for Professional Teaching Standards, 2002; National Commission on Teaching & America’s Future, 1996; Ripley, 2010; Stronge, 2007). The topic of coaching has become increasingly common in the field of education as a way to help teachers be effective. Coaches need to support all teachers, regardless of the type of mindset held by the teacher. The purpose of this quantitative study was to understand the correlation between teacher mindset and perceptions regarding coaching, feedback, and improved instructional practice. The overarching question for this research study was aimed at discovering if the mindset of teachers influenced their perceptions of the coaching and feedback process: “Does the mindset of teachers influence their perception regarding the coaching and feedback process?” There were nine questions guiding this research. Data was gathered through a paper and pencil survey during the spring of 2015. A total of 68 respondents returned completed surveys. Data was analyzed using descriptive statistics, t-tests, Pearson’s r, one-way ANOVA, and Tukey’s Post hoc Test. The results found that leaders and coaches had a slightly greater mean in both mindset and perceptions than classroom teachers. Additionally, there was a statistically significant difference in perceptions towards the coaching and feedback process among those currently in leadership positions. Among classroom teachers, there was a correlation between perceptions towards the coaching and feedback process based on years of experience. Further exploration in the area of mindset and issues involving coaching is needed. Both mindset and perceptions about coaching have the ability to impact student achievement. Implications for further research are discussed

Separation of lymphocytes by electrophoresis under terrestrial conditions and at zero gravity, phase 3

Electrophoretic mobilities (EPM) of peripheral lymphocytes were studied from normal subjects, chronic hemodialysis patients and kidney transplant recipients. A technique to separate B lymphocytes and null cells from non-T lymphocyte preparation was developed. The experiments were designed to determine which subpopulation of the non-T lymphocytes is primarily affected and shows a decreased EPM in chronic hemodialysis patients and kidney transplant recipients

On the uncertainty relations and squeezed states for the quantum mechanics on a circle

The uncertainty relations for the position and momentum of a quantum particle on a circle are identified minimized by the corresponding coherent states. The sqeezed states in the case of the circular motion are introduced and discussed in the context of the uncertainty relations.Comment: 4 figure

Computational challenges in the analysis of ancient DNA

High-throughput sequencing technologies have opened up a new avenue for studying extinct organisms. Here we identify and quantify biases introduced by particular characteristics of ancient DNA samples. These analyses demonstrate the importance of closely related genomic sequence for correctly identifying and classifying bona fide endogenous DNA fragments. We show that more accurate genome divergence estimates from ancient DNA sequence can be attained using at least two outgroup genomes and appropriate filtering

Coherent states on spheres

We describe a family of coherent states and an associated resolution of the identity for a quantum particle whose classical configuration space is the d-dimensional sphere S^d. The coherent states are labeled by points in the associated phase space T*(S^d). These coherent states are NOT of Perelomov type but rather are constructed as the eigenvectors of suitably defined annihilation operators. We describe as well the Segal-Bargmann representation for the system, the associated unitary Segal-Bargmann transform, and a natural inversion formula. Although many of these results are in principle special cases of the results of B. Hall and M. Stenzel, we give here a substantially different description based on ideas of T. Thiemann and of K. Kowalski and J. Rembielinski. All of these results can be generalized to a system whose configuration space is an arbitrary compact symmetric space. We focus on the sphere case in order to be able to carry out the calculations in a self-contained and explicit way.Comment: Revised version. Submitted to J. Mathematical Physic

Theoretical uncertainties for measurements of alpha_s from electroweak observables

One of the most precise measurements of the strong coupling constant alpha_s(MZ) is obtained in the context of global analyses of precision electroweak data. This article reviews the sensitivity of different electroweak observables to alpha_s and describes the perturbative uncertainties related to missing higher orders. The complete renormalisation scale dependence for the relevant observables is calculated at next-to-next-to-leading order and a new method is presented to determine the corresponding perturbative uncertainty for measurements of alpha_s based on these observables.Comment: v4: Revised version with new tables and figure