Polaron Induced Deformations in Carbon Nanotubes

We compute for the first time full elastic deformations, as well as length, of self-trapped electronic states in carbon nanotubes of general radius and chirality, within the unifying framework of a recently introduced two field model for electromechanics of carbon nano-structures. We find that deformations are highly non monotonic in the chiral angle, whereas the length of the polaron is not. Applications include nano-mechanical devices as electrically or optically driven nano-actuators.Comment: 4 Pages, 1 Figure Phys Rev B Brief Repor

Thermoelastic Damping in Micro- and Nano-Mechanical Systems

The importance of thermoelastic damping as a fundamental dissipation mechanism for small-scale mechanical resonators is evaluated in light of recent efforts to design high-Q micrometer- and nanometer-scale electro-mechanical systems (MEMS and NEMS). The equations of linear thermoelasticity are used to give a simple derivation for thermoelastic damping of small flexural vibrations in thin beams. It is shown that Zener's well-known approximation by a Lorentzian with a single thermal relaxation time slightly deviates from the exact expression.Comment: 10 pages. Submitted to Phys. Rev.

Embracing the otherness of others: an approach for teacher educators to assuage social and political tribalism

We live in a corrosively polarized climate where sharply divided beliefs about globalization and populism magnify existing biases. This problem is exacerbated by the fact that those who want to educate the next generation – teacher candidates – have been schooled in systems that focus on obedience, conformity, and docility. This breadcrumbs approach to education bears the danger of reproducing the status quo rather than changing it. This chapter explores the promises, perils, and provocations of curriculum regarding how we think about diversity and delineates a learning experience for pre-service teachers that allows them to identify, approach, and become the Other. The lived experience illuminates the cultural and experiential origins of their beliefs while reconciling the uncomfortable notion that bias is part of the human condition. In times where sharpened divisions intensify social and political tribalism it is essential to understand that it is the way one acts upon one’s biases that determines what kind of world one creates

Reviews of

Antibiotic Switch therapy is defined by the switch of intravenous antibiotic therapy to oral form. This research aimed to learn about the relationship of switch therapy toward the value of wound healing, lenght of stay and the antibiotic expenditure. The data of this cross sectional study was collected from medical record and by direct investigation to patients for their macroscopis the wound healings value. T-test was used to compared the relationship of the patient wound healings value, lenght of stay and the antibiotic expenditure between the those with and accurate switch therapy and those without it. The result showed that there was no different of wound healing value between those groups of patients (P>0,1). On the other hand, lenght of stay and antibiotic expenditure of the patient with the accurate switch therapy was cuted on the patient with the accurate switch therapy. These indicated that accuracy of switch therapy will proceed a benefit outcome to the patient with appendicitis, especially to there lenght of stay and antibiotic expenditure as well