The Relationship Between Health Beliefs and Adherence to Treatment of Russian Immigrants with Hypertension

Introduction: Hypertension (HTN) has been identified as a common health problem in every ethnic group in the USA. Due to the silent nature of the HTN, some cultures may not perceive this condition as being serious or potentially fatal. Objective: The purpose of this study was to investigate the health beliefs of Russian-speaking immigrants with hypertension and their adherence to the prescribed treatment. Design: The study was a non-experimental exploratory survey and interview. Convenience sampling was used. The Health Belief Model (HBM) provided the theoretical framework. Sample: A total of 62 subjects (27% male and 73% female, ages from 51 to 86) completed the questionnaire that covered health beliefs and self-report on adherence to treatment. Results: This study indicated a correlation between embarrassment, inconvenience, and compliance with fitness recommendations. Financial burden correlated with adherence to dietary modifications. A strong negative correlation was found between perceived severity of complications and number of missed medications. Patient\u27s awareness about existence of complications of hypertension had a positive correlation with change in adherence to treatment. Educational level had no correlation with adherence. Conclusion: Health education based on these findings will facilitate the reduction of the rate of complications in the targeted population

Nanomechanical displacement detection using coherent transport in ordered and disordered graphene nanoribbon resonators

Graphene nanoribbons provide an opportunity to integrate phase-coherent transport phenomena with nanoelectromechanical systems (NEMS). Due to the strain induced by a deflection in a graphene nanoribbon resonator, coherent electron transport and mechanical deformations couple. As the electrons in graphene have a Fermi wavelength \lambda ~ a_0 = 1.4 {\AA}, this coupling can be used for sensitive displacement detection in both armchair and zigzag graphene nanoribbon NEMS. Here it is shown that for ordered as well as disordered ribbon systems of length L, a strain \epsilon ~ (w/L)^2 due to a deflection w leads to a relative change in conductance \delta G/G ~ (w^2/a_0L).Comment: 4 Pages, 4 figure

Interface states in junctions of two semiconductors with intersecting dispersion curves

A novel type of shallow interface state in junctions of two semiconductors without band inversion is identified within the envelope function approximation, using the two-band model. It occurs in abrupt junctions when the interband velocity matrix elements of the two semiconductors differ and the bulk dispersion curves intersect. The in-plane dispersion of the interface state is found to be confined to a finite range of momenta centered around the point of intersection. These states turn out to exist also in graded junctions, with essentially the same properties as in the abrupt case.Comment: 1 figur

Low frequency excitations of C60 chains inserted inside single-walled carbon nanotubes

The low frequency excitations of C60 chains inserted inside single-walled carbon nanotubes (SWNTs) have been studied by inelastic neutron scattering (INS) on a high quality sample of peapods. The comparison of the neutron-derived generalized phonon density of states (GDOS) of the peapods sample with that of a raw SWNTs allows the vibrational properties of the C60 chains encapsulated in the hollow core of the SWNTs to be probed. Lattice dynamical models are used to calculate the GDOS of chains of monomers, dimers and polymers inserted into SWNTs, which are compared to the experimental data. The presence of strong interactions between C60 cages inside the nanotube is clearly demonstrated by an excess of mode density in the frequency range around 10 meV. However, the presence of a quasi-elastic signal indicates that some of the C60\'s undergo rotational motion. This suggests that peapods are made from a mixture of C60 monomers and C60 n-mer (dimer, trimer ... polymer) structures