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Computer simulations of wetting of solid surfaces by liquid crystals.

Physical review. E, Statistical, nonlinear, and soft matter physics

McDonald AJ, Hanna S.
PMID: 17500909
Phys Rev E Stat Nonlin Soft Matter Phys. 2007 Apr;75(4):041703. doi: 10.1103/PhysRevE.75.041703. Epub 2007 Apr 18.

Atomistic computer simulations are presented, consisting of droplets of model liquid crystal molecules wetting a generic crystalline surface. It is shown that the type of wetting that occurs is highly dependent on the value of the surface interaction parameter...

Attachment/detachment and trichloroethylene degradation-longevity of a resting cell Methylosinus trichosporium OB3b filter.

Biotechnology and bioengineering

Hanna ML, Taylor RT.
PMID: 18629832
Biotechnol Bioeng. 1996 Sep 20;51(6):659-72. doi: 10.1002/(SICI)1097-0290(19960920)51:6<659::AID-BIT5>3.0.CO;2-G.

We are investigating a methanotrophic filter strategy for the in situ bioremediation of low levels of chlorinated aliphatic, volatile organic chemicals (VOCs). It is based on the use of pregrown, resting cells, instead of growth-nutrient stimulations. The economic feasibility...

Experimental observations of the squeezing-to-dripping transition in T-shaped microfluidic junctions.

Physical review. E, Statistical, nonlinear, and soft matter physics

Christopher GF, Noharuddin NN, Taylor JA, Anna SL.
PMID: 18851153
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Sep;78(3):036317. doi: 10.1103/PhysRevE.78.036317. Epub 2008 Sep 18.

An experimental study of droplet breakup in T-shaped microfluidic junctions is presented in which the capillary number and flow rate ratio are varied over a wide range for several different viscosity ratios and several different ratios of the inlet...

First-order nonconservative motion of optically trapped nonspherical particles.

Physical review. E, Statistical, nonlinear, and soft matter physics

Simpson SH, Hanna S.
PMID: 21230059
Phys Rev E Stat Nonlin Soft Matter Phys. 2010 Sep;82(3):031141. doi: 10.1103/PhysRevE.82.031141. Epub 2010 Sep 30.

It is well known that optical force fields are not conservative. This has important consequences for the thermal motion of optically trapped dielectric spheres. In particular, the spheres do not reach thermodynamic equilibrium. Instead, a steady state is achieved...

Optical angular momentum transfer by Laguerre-Gaussian beams.

Journal of the Optical Society of America. A, Optics, image science, and vision

Simpson SH, Hanna S.
PMID: 19252660
J Opt Soc Am A Opt Image Sci Vis. 2009 Mar;26(3):625-38. doi: 10.1364/josaa.26.000625.

It is well known that Laguerre-Gaussian beams carry angular momentum and that this angular momentum has a mechanical effect when such beams are incident on particles whose refractive indices differ from those of the background medium. Under conditions of...

Thermal motion of a holographically trapped SPM-like probe.

Nanotechnology

Simpson SH, Hanna S.
PMID: 19726835
Nanotechnology. 2009 Sep 30;20(39):395710. doi: 10.1088/0957-4484/20/39/395710. Epub 2009 Sep 03.

By holding a complex object in multiple optical traps, it may be harmonically bound with respect to both its position and its orientation. In this way a small probe, or nanotool, can be manipulated in three dimensions and used...

Influence of dye molecules on the birefringence of liquid crystal mixtures at near infrared frequencies.

The Journal of chemical physics

Simpson SH, Richardson RM, Hanna S.
PMID: 17867774
J Chem Phys. 2007 Sep 14;127(10):104901. doi: 10.1063/1.2767257.

The optical properties of nematic liquid crystals have been extensively exploited in the production of devices working in the visible range of the spectrum. These same properties can be employed to make devices that function in the near infrared...

Long-term prognostic value of the combination of EORTC risk group calculator and molecular markers in non-muscle-invasive bladder cancer patients treated with intravesical Bacille Calmette-Guérin.

Urology annals

Alkhateeb SS, Neill M, Bar-Moshe S, Rhijn BV, Kakiashvili DM, Fleshner N, Jewett M, Petein M, Schulman C, Hanna S, Bostrom PJ, Roumeguere T, Shariat SF, Rorive S, Zlotta AR.
PMID: 21976923
Urol Ann. 2011 Sep;3(3):119-26. doi: 10.4103/0974-7796.84954.

BACKGROUND AND OBJECTIVES: To evaluate the long-term prognostic value of the combination of the EORTC risk calculator and proapoptotic, antiapoptotic, proliferation, and invasiveness molecular markers in predicting the outcome of intermediate- and high-risk non-muscle-invasive bladder cancer (NMIBC) treated with...

Atomistic simulation of a model liquid crystal.

The Journal of chemical physics

McDonald AJ, Hanna S.
PMID: 16674169
J Chem Phys. 2006 Apr 28;124(16):164906. doi: 10.1063/1.2193154.

We present atomistic molecular dynamics computer simulations of the bulk phases of a model liquid crystal system based on 8CB. The model differs from real 8CB because it employs a united-atom description to eliminate all hydrogen atoms, and neglects...

Care for patients with type 2 diabetes in a random sample of community family practices in ontario, Canada.

International journal of family medicine

Agarwal G, Kaczorowski J, Hanna S.
PMID: 22852083
Int J Family Med. 2012;2012:734202. doi: 10.1155/2012/734202. Epub 2012 Jul 18.

Objective. Diabetes care is an important part of family practice. Previous work indicates that diabetes management is variable. This study aimed to examine diabetes care according to best practices in one part of Ontario. Design and Participants. A retrospective...

A 17 year old with isolated proximal tibiofibular joint arthritis.

Pediatric rheumatology online journal

Canna SW, Chauvin NA, Burnham JM.
PMID: 23302539
Pediatr Rheumatol Online J. 2013 Jan 09;11(1):1. doi: 10.1186/1546-0096-11-1.

The proximal tibiofibular joint (TFJ) is rarely affected in rheumatic diseases, and we frequently interpret pain of the lateral knee as the result of overuse or trauma. Nonetheless, the TFJ is a synovial joint that communicates with the tibiofemoral...

Clinicians' evaluations of, endorsements of, and intentions to use practice guidelines change over time: a retrospective analysis from an organized guideline program.

Implementation science : IS

Brouwers M, Hanna S, Abdel-Motagally M, Yee J.
PMID: 19558716
Implement Sci. 2009 Jun 28;4:34. doi: 10.1186/1748-5908-4-34.

PURPOSE: Clinical practice guidelines (CPGs) can improve clinical care but uptake and application are inconsistent. Objectives were: to examine temporal trends in clinicians' evaluations of, endorsements of, and intentions to use cancer CPGs developed by an established CPG program;...

Showing 13 to 24 of 404 entries