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Showing 1 to 12 of 20 entries
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Colon and rectum rigid and flexible endoscopy.

Canadian family physician Medecin de famille canadien

Grand'maison P, Belle-Isle J, Guilmette P, Daviault E.
PMID: 21248917
Can Fam Physician. 1989 Nov;35:2249-53.

The authors examined results of 1046 of the 1268 endoscopic examinations performed from July 1982 to June 1986 in a family practice unit. A flexible sigmoidoscope of 60 cm or more was used for 77% of the examinations. Data...

Highly scalable femtosecond coherent beam combining demonstrated with 19 fibers.

Optics letters

Le Dortz J, Heilmann A, Antier M, Bourderionnet J, Larat C, Fsaifes I, Daniault L, Bellanger S, Simon Boisson C, Chanteloup JC, Lallier E, Brignon A.
PMID: 28504751
Opt Lett. 2017 May 15;42(10):1887-1890. doi: 10.1364/OL.42.001887.

Coherent beam combining in the femtosecond regime of a record number of 19 fibers is demonstrated. The interferometric phase measurement technique, particularly well suited to phase-lock a very large number of fibers, is successfully demonstrated in the femtosecond regime....

Coherent beam combining of 61 femtosecond fiber amplifiers.

Optics express

Fsaifes I, Daniault L, Bellanger S, Veinhard M, Bourderionnet J, Larat C, Lallier E, Durand E, Brignon A, Chanteloup JC.
PMID: 32680081
Opt Express. 2020 Jul 06;28(14):20152-20161. doi: 10.1364/OE.394031.

We report on the coherent beam combining of 61 femtosecond fiber chirped-pulse amplifiers in a tiled-aperture configuration along with an interferometric phase measurement technique. Relying on coherent beam recombination in the far field, this technique appears suitable for the...

Arbitrary-detuning asynchronous optical sampling with amplified laser systems.

Optics express

Antonucci L, Bonvalet A, Solinas X, Daniault L, Joffre M.
PMID: 26480451
Opt Express. 2015 Oct 19;23(21):27931-40. doi: 10.1364/OE.23.027931.

We demonstrate that Arbitrary-Detuning ASynchronous OPtical Sampling (AD-ASOPS) makes possible multiscale pump-probe spectroscopy with time delays spanning from picosecond to millisecond. The implementation on pre-existing femtosecond amplifiers seeded by independent free-running oscillators is shown to be straightforward. The accuracy...

High peak-power stretcher-free femtosecond fiber amplifier using passive spatio-temporal coherent combining.

Optics express

Daniault L, Hanna M, Papadopoulos DN, Zaouter Y, Mottay E, Druon F, Georges P.
PMID: 23037281
Opt Express. 2012 Sep 10;20(19):21627-34. doi: 10.1364/OE.20.021627.

We report on the passive coherent combining of up to 8 temporally and spatially separated ultrashort pulses amplified in a stretcher-free ytterbium-doped fiber system. An initial femtosecond pulse is split into 4 temporal replicas using divided-pulse amplification, and subsequently...

Transient Two-Dimensional Infrared Spectroscopy in a Vibrational Ladder.

The journal of physical chemistry letters

Kemlin V, Bonvalet A, Daniault L, Joffre M.
PMID: 27508408
J Phys Chem Lett. 2016 Sep 01;7(17):3377-82. doi: 10.1021/acs.jpclett.6b01535. Epub 2016 Aug 15.

We report on transient 2D Fourier transform infrared spectroscopy (2DIR) after vibrational ladder climbing induced in the CO-moiety longitudinal stretch of carboxyhemoglobin. The population distribution, spreading up to seven vibrational levels, results in a nonequilibrium 2DIR spectrum evidencing a...

A Combined Approach for Estimating Health Staff Requirements.

Iranian journal of public health

Fakhri A, Seyedin H, Daviaud E.
PMID: 26060687
Iran J Public Health. 2014 Jan;43(1):107-15.

BACKGROUND: Many studies have been carried out and many methods have been used for estimating health staff re-quirements in health facilities or system, each have different advantages and disadvantages. Differences in the extent to which utilization matches needs in...

Coherent beam combining of seven fiber chirped-pulse amplifiers using an interferometric phase measurement.

Optics express

Heilmann A, Le Dortz J, Daniault L, Fsaifes I, Bellanger S, Bourderionnet J, Larat C, Lallier E, Antier M, Durand E, Simon-Boisson C, Brignon A, Chanteloup JC.
PMID: 30650738
Opt Express. 2018 Nov 26;26(24):31542-31553. doi: 10.1364/OE.26.031542.

Coherent beam combining in tiled-aperture configuration is demonstrated on seven femtosecond fiber amplifiers using an interferometric phase measurement technique. The residual phase error between two fibers is as low as λ/55 RMS and a combination efficiency of 48% has...

Mobile Messaging Support Versus Usual Care for People With Type 2 Diabetes on Glycemic Control: Protocol for a Multicenter Randomized Controlled Trial.

JMIR research protocols

Farmer A, Bobrow K, Leon N, Williams N, Phiri E, Namadingo H, Cooper S, Prince J, Crampin A, Besada D, Daviaud E, Yu LM, Ngoma J, Springer D, Pauly B, Norris S, Tarassenko L, Nyirenda M, Levitt N.
PMID: 31199346
JMIR Res Protoc. 2019 May 30;8(6):e12377. doi: 10.2196/12377.

BACKGROUND: Health outcomes for people treated for type 2 diabetes could be substantially improved in sub-Saharan Africa. Failure to take medicine regularly to treat diabetes has been identified as a major problem. Resources to identify and support patients who...

Unit costs and other musings: a response.

Health policy and planning

Torres-Rueda S, Ferrari G, Orangi S, Hitimana R, Daviaud E, Tawiah T, Prah RKD, Karmaliani R, Kapapa E, Barasa E, Jewkes R, Vassall A.
PMID: 33377139
Health Policy Plan. 2021 Mar 26;36(2):223-225. doi: 10.1093/heapol/czaa155.

No abstract available.

The effect of spatial organization of targets and distractors on the capacity to selectively memorize objects in visual short-term memory.

Advances in cognitive psychology

Abbes AB, Gavault E, Ripoll T.
PMID: 25339978
Adv Cogn Psychol. 2014 Sep 30;10(3):90-103. doi: 10.5709/acp-0160-x. eCollection 2014.

We conducted a series of experiments to explore how the spatial configuration of objects influences the selection and the processing of these objects in a visual short-term memory task. We designed a new experiment in which participants had to...

Coherent beam combining of two femtosecond fiber chirped-pulse amplifiers.

Optics letters

Daniault L, Hanna M, Lombard L, Zaouter Y, Mottay E, Goular D, Bourdon P, Druon F, Georges P.
PMID: 21368927
Opt Lett. 2011 Mar 01;36(5):621-3. doi: 10.1364/OL.36.000621.

We demonstrate coherent beam combining of two femtosecond fiber chirped-pulse amplifiers seeded by a common oscillator. Using a feedback loop based on an electro-optic phase modulator, an average power of 7.2 W before compression is obtained with a combining...

Showing 1 to 12 of 20 entries