Magnon-mediated qubit coupling determined via dissipation measurements.

Controlled interaction between localized and delocalized solid-state spin systems offers a compelling platform for on-chip quantum information processing with quantum spintronics. Hybrid quantum systems (HQSs) of localized nitrogen-vacancy (NV) centers in diamond and delocalized magnon modes in ferrimagnets-systems with naturally commensurate energies-have recently attracted significant attention, especially for interconnecting isolated spin qubits at length-scales far beyond those set by the dipolar coupling. However, despite extensive theoretical efforts, there is a lack of experimental characterization of the magnon-mediated interaction between NV centers, which is necessary to develop such hybrid quantum architectures.

"mus co shee": Indigenous Plant Foods and Horticultural Imperialism in the Canadian Sub-Arctic.

The 17th-century arrival of the Hudson's Bay Company in Rupert's Land disrupted Mushkegowuk (Cree) hunter-gatherer society by replacing the collection of indigenous plant foods with a British planted-food model. Within a hundred years of British contact, new foodways relied upon hunting and gardening, bringing a loss in heritage plant food knowledge. Mushkegowuk living in the sub-arctic today have minimal knowledge of edible indigenous plants.

Asymmetric vault of an accommodating intraocular lens.

We report a case of a new syndrome, late asymmetric vault of the AT45 Crystalens intraocular lens (IOL) (Eyeonics Inc.). The late vault, which occurred in 6 month after implantation of the IOL, caused a decrease in uncorrected distance and near acuities and minus-cylinder axis perpendicular to the haptics.

Intraocular lens calculations after refractive surgery.

Purpose: To evaluate the effect of refractive surgery on intraocular lens (IOL) power calculation, compare methods of IOL power calculation after refractive surgery, evaluate the effect of pre-refractive surgery refractive error on IOL deviation, review the literature on determining IOL power after refractive surgery, and introduce a formula for IOL calculation for use after refractive surgery for myopia.

Setting: Laser & Corneal Surgery Associates and Center for Ocular Tear Film Disorders, New York, New York, USA.

Methods: This retrospective noncomparative case series comprised 21 patients who had uneventful cataract extraction and IOL implantation after previous uneventful myopic refractive surgery.

Laser in situ keratomileusis in a patient with congenital nystagmus.

We report the results of laser in situ keratomileusis (LASIK) to correct myopia in a 47-year-old woman with congenital motor nystagmus and myopia. The patient had simultaneous bilateral LASIK using the Alcon-Summit-Autonomous LADARVision excimer laser. Her uncorrected visual acuity (UCVA) preoperatively was 20/600 in the right eye and 20/800 in the left eye; best corrected visual acuity was 20/40 in both eyes.

Retinal nerve fiber layer thickness remains unchanged following laser-assisted in situ keratomileusis.

Purpose: To evaluate the effect of laser-assisted in situ keratomileusis (LASIK) on retinal nerve fiber layer (RNFL) thickness measurements obtained with scanning laser polarimetry (SLP), optical coherence tomography (OCT), and scanning laser tomography (SLT).

Design: Interventional case series.

Methods: Twenty eyes (20 patients) undergoing LASIK were enrolled in this prospective study.

Molecular symmetry of fructose-1,6-diphosphatase by X-ray diffraction analysis.

Large single crystals of rabbit liver fructose-1,6-diphosphatase suitable for a high resolution structure analysis have been grown from polyethylene glycol. The space group of these crystals is I222 with a = 75 A, b = 81 A, and c = 132 A and there are 2 tetrameric molecules in the unit cell. These crystals have one protein subunit as the crystallographic asymmetric unit and establish point group symmetry 222 as the molecular symmetry.

Alkylamine salts and amides: in vitro inhibition of S mutans 6715.

Our studies with the salts and amides of alkylamines have shown that the undecylenate salts have significant in vitro activity against S mutans No 6715, suggesting that these agents are worthy of additional evaluation. The attempt to increase activity by combining undecylenic acid with the alkylamines was not successful; however, better attachment to tooth surfaces and/or retention during washing did occur. Our results suggest that the free amino group of alkylamines and the free acid group of undecylenic acid are required for these two classes of agents to demonstrate antibacterial activity.

Prolongation of antibacterial activity of chlorhexidine adsorbed to teeth. Effect of sulfates.

The results suggest that the effectiveness of sulfates in prolonging the antibacterial activity of teeth treated with chlorhexidine gluconate is related to the acidity and concentration of the sulfate solutions. The acidity may contribute to the effectiveness by modifying the tooth surface for enhanced reaction with sulfate ions. It is suggested that during the priming process bonded crystals of calcium sulfate develop which become transformed by treatment with chlorhexidine gluconate to relatively insoluble chlorhexidine sulfate.