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Showing 1 to 12 of 226 entries
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Characterization of Shiga Toxin Subtypes and Virulence Genes in Porcine Shiga Toxin-Producing Escherichia coli.

Frontiers in microbiology

Baranzoni GM, Fratamico PM, Gangiredla J, Patel I, Bagi LK, Delannoy S, Fach P, Boccia F, Anastasio A, Pepe T.
PMID: 27148249
Front Microbiol. 2016 Apr 21;7:574. doi: 10.3389/fmicb.2016.00574. eCollection 2016.

Similar to ruminants, swine have been shown to be a reservoir for Shiga toxin-producing Escherichia coli (STEC), and pork products have been linked with outbreaks associated with STEC O157 and O111:H-. STEC strains, isolated in a previous study from...

Adaptive optics full-field optical coherence tomography.

Journal of biomedical optics

Xiao P, Fink M, Boccara AC.
PMID: 27653794
J Biomed Opt. 2016 Dec 01;21(12):121505. doi: 10.1117/1.JBO.21.12.121505.

We describe a simple and compact full-field optical coherence tomography (FFOCT) setup coupled to a transmissive liquid crystal spatial light modulator (LCSLM) to induce or correct aberrations. To reduce the system complexity, strict pupil conjugation was abandoned because low-order...

Phase measurements with wide-aperture interferometers.

Applied optics

Dubois A, Selb J, Vabre L, Boccara AC.
PMID: 18345141
Appl Opt. 2000 May 10;39(14):2326-31. doi: 10.1364/ao.39.002326.

An interferogram produced by wide-aperture interferometers is studied both theoretically and experimentally. The fringe spacing is shown to increase nonlinearly with the numerical aperture and the fringe envelope to become narrower as the numerical aperture is increased. Phase measurements...

Nonlinear effects in acousto-optic imaging.

Optics letters

Selb J, Pottier L, Boccara AC.
PMID: 18026323
Opt Lett. 2002 Jun 01;27(11):918-20. doi: 10.1364/ol.27.000918.

Acousto-optic (AO) imaging is a promising technique that is able to reveal optical properties in the millimeter range inside scattering media by tagging the photon paths with an ultrasonic beam. To increase both the contrast and the resolution of...

ESNR Meeting of the Executive Committee. Interventional Neuroradiology Committee.

Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences

Picard L, Bonneville JF, Molyneux AJ, Valavanis A, Boccardi F, Rodesch G.
PMID: 20682103
Interv Neuroradiol. 1996 Sep 30;2(3):241-3. doi: 10.1177/159101999600200312. Epub 2001 May 15.

No abstract available.

Reflection-mode scanning near-field optical microscopy using an apertureless metallic tip.

Applied optics

Bachelot R, Gleyzes P, Boccara AC.
PMID: 18253187
Appl Opt. 1997 Apr 01;36(10):2160-70. doi: 10.1364/ao.36.002160.

Recently, a reflection-mode near-field optical microscope with an apertureless tungsten tip has been introduced and 100-nm resolution has been achieved [R. Bachelot, P. Gleyzes, and A. C. Boccara, Microsc. Microanal. Microstruc. 5, 389-397 (1994)]. The optical signal is recorded...

Multichannel Nomarski microscope with polarization modulation: performance and applications.

Optics letters

Gleyzes P, Boccara AC, Saint-Jalmes H.
PMID: 18188288
Opt Lett. 1997 Oct 15;22(20):1529-31. doi: 10.1364/ol.22.001529.

Using a two-dimensional CCD array, a photoelastic modulator, and a commercial Nomarski microscope, we built a differential polarization interferometer. Multichannel lock-in detection of the signal allowed us to reach a shot-noise limit corresponding to 5-pm path differences for a...

Photothermal deflection spectroscopy and detection.

Applied optics

Jackson WB, Amer NM, Boccara AC, Fournier D.
PMID: 20309309
Appl Opt. 1981 Apr 15;20(8):1333-44. doi: 10.1364/AO.20.001333.

The theory for a sensitive spectroscopy based on the photothermal deflection of a laser beam is developed. We consider cw and pulsed cases of both transverse and collinear photothermal deflection spectroscopy for solids, liquids, gases, and thin films. The...

Molecular cloning of Erwinia chrysanthemi pectinase and cellulase structural genes.

The EMBO journal

Kotoujansky A, Diolez A, Boccara M, Bertheau Y, Andro T, Coleno A.
PMID: 16453606
EMBO J. 1985 Mar;4(3):781-5.

Erwinia chrysanthemi 3937 secretes four major pectate lyase isoenzymes (PL, EC 4.2.2.2) and one endocellulase (Cx, EC 3.2.1.4). A genomic library of this strain was constructed in the Lambda L47-1 vector, and screened for the presence of PL and...

Polarization effects in apertureless scanning near-field optical microscopy: an experimental study.

Optics letters

Aigouy L, Lahrech A, Grãsillon S, Cory H, Boccara AC, Rivoal JC.
PMID: 18071449
Opt Lett. 1999 Feb 15;24(4):187-9. doi: 10.1364/ol.24.000187.

Strong electric-field enhancements at the apex of a tungsten tip illuminated by an external light source were recently predicted theoretically. We present an experimental study of the dependence of this effect on the polarization angle of the incident light....

Beef quality assessed at European research centres.

Meat science

Dransfield E, Nute GR, Roberts TA, Boccard R, Touraille C, Buchter L, Casteels M, Cosentino E, Hood DE, Joseph RL, Schon I, Paardekooper EJ.
PMID: 22055992
Meat Sci. 1984;10(1):1-20. doi: 10.1016/0309-1740(84)90028-7.

Loin steaks and cubes of M. semimembranosus from eight (12 month old) Galloway steers and eight (16-18 month old) Charolais cross steers raised in England and from which the meat was conditioned for 2 or 10 days, were assessed...

Breast-cancer in the elderly - detection and treatment modalities in 341 women.

International journal of oncology

Repetto L, Miglietta L, Costantini M, Queirolo P, Cannata D, Pace M, Gardin G, Guido T, Amoroso D, Campora E, Boccardo F, Rosso R.
PMID: 21559727
Int J Oncol. 1994 Dec;5(6):1399-403. doi: 10.3892/ijo.5.6.1399.

Elderly cancer patients are generally excluded from entry to clinical trials;and often managed inadequately or based on individual experience. We have retrospectively determined tumor detection modality, diagnostic and staging work-up, delay in referral and therapeutic approaches in 341 women...

Showing 1 to 12 of 226 entries