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1. Effects of thymoquinone supplementation on somatostatin secretion in pancreas tissue of rats

Author

BAKIR B, KARADAG SARI E, ELIS YILDIZ S, and ASKER H

Subjects
imunohistochemistry, nigella sativa, pancreas, thymoquinone, Veterinary medicine, SF600-1100
Abstract

In this study, it was aimed to investigate the effects of thymoquinone (TQ), which is the bioactive phytochemical constituent of the seeds oil of Nigella sativa, on somatostatin secretion in the rat pancreatic tissue by immunohistochemical method. Animals (n=30) were divided into 3 groups as follows: control, sham and thymoquinone. While Thymoquinone group received 8 mg/kg of TQ which injected for 14 days, only isotonic saline was injected to the sham group for same time. The control group received nothing. Crossman"s triple staining was applied to tissue sections to examine histology. Streptavidin-Biotin-Peroxidase Complex method was used to investigate somatostatin immunoreactivity in the pancreatic tissue. Specific somatostatin immunoreactivities were observed in endocrine cells (islets of Langerhans) in all groups. It was determined that somatostatin secretion increased in the thymoquinone group compared to control and sham. In conclusion, thymoquinone administration was concluded to increase the secretion of somatostatin that is known to regulate certain hormones such as growth hormone, insulin, glucagon, secretin and gastrin.

Published
2017
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5. Hong-Ou-Mandel interference between independent III-V on silicon waveguide integrated lasers

Author

Agnesi, C., Da Lio, B., Cozzolino, D., Cardi, L., Bakir, B. Ben, Hassan, K., Della Frera, A., Ruggeri, A., Giudice, A., Vallone, G., Villoresi, P., Tosi, A., Rottwitt, K., Ding, Y., and Bacco, D.

Subjects
Quantum Physics
Abstract

The versatility of silicon photonic integrated circuits has led to a widespread usage of this platform for quantum information based applications, including Quantum Key Distribution (QKD). However, the integration of simple high repetition rate photon sources is yet to be achieved. The use of weak-coherent pulses (WCPs) could represent a viable solution. For example, Measurement Device Independent QKD (MDI-QKD) envisions the use of WCPs to distill a secret key immune to detector side channel attacks at large distances. Thus, the integration of III-V lasers on silicon waveguides is an interesting prospect for quantum photonics. Here, we report the experimental observation of Hong-Ou-Mandel interference with 46\pm 2% visibility between WCPs generated by two independent III-V on silicon waveguide integrated lasers. This quantum interference effect is at the heart of many applications, including MDI-QKD. Our work represents a substantial first step towards an implementation of MDI-QKD fully integrated in silicon, and could be beneficial for other applications such as standard QKD and novel quantum communication protocols., Comment: 5 pages, 3 figures

Published
2019
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6. High Kerr nonlinearity hydrogenated amorphous silicon nanowires with low two photon absorption and high optical stability

Author

Grillet, C., Carletti, L., Monat, C., Grosse, P., Bakir, B. Ben, Menezo, S., Fedeli, J. M., and Moss, David J.

Subjects
Physics - Optics
Abstract

We demonstrate optically stable amorphous silicon nanowires with both high nonlinear figure of merit (FOM) of ~5 and high nonlinearity Re({\gamma}) = 1200W-1m-1. We observe no degradation in these parameters over the entire course of our experiments including systematic study under operation at 2 W coupled peak power (i.e. ~2GW/cm2) over timescales of at least an hour., Comment: 8 pages, 7 figures, 33 references, 1 table. arXiv admin note: substantial text overlap with arXiv:1405.2392

Published
2014
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7. Amorphous Silicon Nanowires with Low Two-Photon Absorption, High Nonlinearity and Good Stability

Author

Grillet, C., Carletti, L., Monat, C., Grosse, P., Bakir, B. Ben, Menezo, S., Fedeli, J. M., and Moss, D. J.

Subjects
Physics - Optics
Abstract

We demonstrate optically stable amorphous silicon nanowires with both high nonlinear figure of merit (FOM) of ~5 and high nonlinearity Re({\gamma}) = 1200W-1m-1., Comment: 4 pages, 5 figures, 25 references, Australian Conference on Optical Fiber Technology (ACOFT), Sydney, December (2012)

Published
2014

8. Validez diagnóstica del sistema vesical imaging-reporting and data system(VI-RADS): estudio con datos de la vida real

Author

Kazan, O., Gunduz, N., Bakir, B., Iplikci, A., Culpan, M., Ersoy, B., and Yildirim, A.

Abstract

Recientemente se ha generalizado el uso del sistema vesical imaging-reporting and data(VI-RADS). Nos propusimos validar el rendimiento diagnóstico del VI-RADS para diferenciar el cáncer vesical músculo-iinvasivo (CVMI) del cáncer vesical no músculo-invasivo (CVNMI) en un contexto de práctica clínica real.

Published
2023
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11. Full InGaN red light emitting diodes.

Author

Dussaigne, A., Barbier, F., Damilano, B., Chenot, S., Grenier, A., Papon, A. M., Samuel, B., Ben Bakir, B., Vaufrey, D., Pillet, J. C., Gasse, A., Ledoux, O., Rozhavskaya, M., and Sotta, D.

Subjects
LIGHT emitting diodes, INDIUM gallium nitride, NITROGEN, QUANTUM efficiency, QUANTUM wells, BUFFER layers, DELAYED fluorescence
Abstract

The full InGaN structure is used to achieve red light emitting diodes (LEDs). This LED structure is composed of a partly relaxed InGaN pseudo-substrate fabricated by Soitec, namely, InGaNOS, a n-doped buffer layer formed by a set of InxGa1−xN/GaN superlattices, thin InyGa1−yN/InxGa1−xN multiple quantum wells, and a p doped InxGa1−xN area. p-doped InGaN layers are first studied to determine the optimal Mg concentration. In the case of an In content of 2%, an acceptor concentration of 1 × 1019/cm3 was measured for a Mg concentration of 2 × 1019/cm3. Red electroluminescence was then demonstrated for two generations of LEDs, including chip sizes of 300 × 300 μm2 and 50 × 50 μm2. The differences between these two LED generations are detailed. For both devices, red emission with a peak wavelength at 620 nm was observed for a pumping current density of 12 A/cm2. Red light-emission is maintained over the entire tested current range. From the first to the second LED generation, the maximum external quantum efficiency, obtained in the range of 17–40 A/cm2, was increased by almost one order of magnitude (a factor of 9), thanks to the different optimizations. [ABSTRACT FROM AUTHOR]

Published
2020
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12. Should routine pulmonary function tests be performed in patients with left ventricular dysfunction and/or congestive heart failure undergoing cardiac surgery?

Author

Turki B. Albacker, Abdulaziz M. Alhothali, Amr A. Arafat, Khaled D. Algarni, Ahmed Eldemerdash, Hanan Albackr, Faisal K. AlGhamdi, and Bakir Bakir

Subjects
Pulmonary function test, Left ventricular dysfunction, Congestive heart failure, Pulmonary complications, Left-sided valvular dysfunction, Surgery, RD1-811, Anesthesiology, RD78.3-87.3
Abstract

Abstract Background It is controversial whether pulmonary function testing should be performed routinely in cardiac surgery patients. The aim of our study was to focus on patients who have congestive heart failure, caused by left ventricular dysfunction or left-sided heart valve disease, and study the prognostic value of performing preoperative pulmonary function testing on their postoperative outcomes. Methods This is a retrospective propensity score matched study that included 366 patients with congestive heart failure who underwent cardiac surgery and had preoperative pulmonary function test. The patients were divided into two groups: Group 1 who had a normal or mild reduction in pulmonary function tests and group 2 who had moderate to severe reduction in pulmonary function tests. The postoperative outcomes, including pulmonary complications, were compared between the two groups. Results Pulmonary function tests were normal or mildly reduced in 190 patients (group 1) and moderately to severely reduced in 176 patients (group 2). Propensity matching identified 111 matched pairs in each group with balanced preoperative and operative characteristics. Compared to group 1, Group 2 had longer duration of mechanical ventilation [12 (7.5–16) vs. 9 (6.5–13) hours, p

Published
2024
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16. Nail Gun Injury to the Left Ventricle Causing Coronary Pulmonary Fistula, A Case Report

Author

BinSebayel O, Eldemerdash A, Almansour A, Bakir B, Albacker T, Alqahtani A, Algazlan A, Alzahrani A, and Alqumaizi F

Subjects
medicine.medical_specialty, medicine.anatomical_structure, Ventricle, business.industry, Pulmonary Fistula, medicine, Nail gun, business, Surgery
Abstract

We present a case of a young patient who presented with unstable angina due to coronary-pulmonary fistula caused by a nail-gun injury that stayed asymptomatic for 3 years. The patient has a successful surgical resection of the fistula and removal of the foreign body.

Published
2021

17. Capacity of shallow foundations on saturated cohesionless soils under combined loading

Author

Yilmaz, M. Tolga and Bakir, B. Sadik

Subjects
Shear strength of soils -- Observations, Foundations (Building) -- Properties, Earth sciences, Observations, Properties
Abstract

Under seismically induced loading, shallow foundations commonly fail by overturning on saturated soils. While the excess pore pressures may have fully dissipated following construction, undrained conditions are typically presumed in the assessment of seismic capacity in conventional applications due to the high rates of loading induced during an earthquake. Undrained strength, however, can be critically dependent on the history of loading and significantly heterogeneous and anisotropic around a foundation. The finite element method is utilized in this study for a proper assessment of the impact of these factors on the overturning moment capacity of surficial foundations on saturated soils, with specific emphasis on failure under seismic loading. Uplift capability has been incorporated into the models and analyses have been conducted for different drainage conditions. Based on the analyses results and comparisons with analytical formulae, it is concluded that the assumption of homogeneous soil strength as well as the disregard of stress path followed can lead to significant overestimation of the overturning moment capacity. The proposed improved approach comprises calculation of the overturning moment capacity based on drained soil behavior and subsequent application of an undrained behavior reduction factor (URF) compatible with the representative pore-pressure parameter A. Key words: combined loading, finite element analysis, shallow foundations, seismic bearing capacity. Resume : Durant un chargement sismique, les fondations peu profondes subissent communement des ruptures par renversement sur des sols satures. Malgre que l'excedent de pression interstitielle puisse s'etre completement dissipe suivant la construction, on presume generalement des conditions non drainees lors de l'evaluation de la capacite sismique d'applications conventionnelles, en raison des taux de chargement eleves induits durant un tremblement de terre. Cependant, la resistance non drainee peut etre dependante de l'historique de chargement, heterogene et significativement anisotropique autour d'une fondation. La methode des elements finis est utilisee dans cette etude afin d'effectuer une evaluation adequate des impacts de ces facteurs sur les capacites de moments de renversement de fondations de surface sur des sols satures, avec une emphase particuliere sur les ruptures en chargement sismique. La resistance au soulevement a ete incorporee dans les modeles, et les analyses ont ete effectuees pour des conditions de drainage differentes. Base sur les resultats d'analyses et des comparaisons avec des formules analytiques, il a ete conclu que la supposition que la resistance du sol est homogene ainsi que l'ignorance du cheminement des contraintes peut amener a une surestimation significative de la capacite de moments de renversement. L'approche amelioree proposee inclus le calcul de la capacite de moments de renversement base sur le comportement draine du sol et l'application subsequente d'un facteur de reduction du comportement non draine << URF >> compatible avec le parametre de pression interstitielle representative A. Mots-cles : chargement combine, analyse d'elements finis, fondations peu profondes, capacite portante sismique. [Traduit par la Redaction], Introduction Widespread seismically induced bearing failures of shallow foundations on saturated fine soils occurred in Mexico City, associated with the 1985 Michoacan earthquake (Mendoza and Auvinet 1988; Zeevaert 1991), and [...]

Published
2009

19. Procurement of innovation terminology usage in health care: A scoping review protocol

Author

Sihag, Margaret R Andrews, Hazelzet Ja, Tanja Stamm, van Raaij Em, Alessandrello R, Valls-Comamala, Janian Mn, Ikävalko S, Timmermann Mm, Ahlberg M, Aurín E, Bakir B, Carter D, Oleari E, and Romualdo Ramos

Subjects
Knowledge management, Computer science, business.industry, 030503 health policy & services, Scientific literature, Grey literature, CINAHL, PsycINFO, Terminology, 03 medical and health sciences, 0302 clinical medicine, Procurement, Systematic review, Health care, 030212 general & internal medicine, 0305 other medical science, business
Abstract

BackgroundAlthough procurement of innovation is an established policy tool used to stimulate collaboration between supply- and demand-side entities during the development of new technologies, there is little scientific literature describing the process as applied in health care settings. Furthermore, what literature exists contains inconsistencies of terms, definitions, and/or concepts related to procurement of innovation. This protocol details our process for a systematic scoping review to describe the current scope of literature and to provide terminology clarification.MethodsA search strategy will be used to search PubMed, EMBASE [OVID], CINAHL [EBSCO], PsycINFO [ProQUEST], ABI/INFORM, ISI Web of Knowledge, EBSCO, JSTOR, the Cochrane Database of Systematic Reviews, and Google Scholar; grey literature, non-scientific reports, policy documents and expert recommendations will also be considered as additional sources for texts. Two researchers will screen titles and abstracts for inclusion/exclusion criteria, followed by full texts. We will extract the following data, if applicable: title, authors, date, author affiliations, country, journal/publication characteristics, setting, aims/purpose, methodology, sample characteristics, assessment/evaluation tools, outcome parameters, key findings, relevance, and terminology usage/definitions. Results will be presented narratively and visually.DiscussionThis paper describes the steps of our proposed systematic scoping review to identify and analyse scientific and non-scientific literature related to procurement of innovation and/or innovation of procurement in health care settings, with a particular focus on digital health technologies. Results are intended to demonstrate the current scope of literature, to provide clarity in language and therefore to serve as a first step for further research in this growing field.

Published
2020
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26. Hong–Ou–Mandel interference between independent III–V on silicon waveguide integrated lasers

Author

Agnesi, C., primary, Da Lio, B., additional, Cozzolino, D., additional, Cardi, L., additional, Ben Bakir, B., additional, Hassan, K., additional, Della Frera, A., additional, Ruggeri, A., additional, Giudice, A., additional, Vallone, G., additional, Villoresi, P., additional, Tosi, A., additional, Rottwitt, K., additional, Ding, Y., additional, and Bacco, D., additional

Published
2019
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27. Assessment of image quality of repeated focused transthoracic echocardiography after cardiac surgery.

Author

Tan J., Yang Y., Royse A., Royse C., Mobeirek A., El Shaer F., AlBackr H., Nazer R., Fouda M., Bakir B., Alsaddique A., Canty D., Heiberg J., Tan J., Yang Y., Royse A., Royse C., Mobeirek A., El Shaer F., AlBackr H., Nazer R., Fouda M., Bakir B., Alsaddique A., Canty D., and Heiberg J.

Abstract

Introduction: Focused transthoracic echocardiography (TTE) has emerged as a vital skill for the cardiothoracic anaesthetist to evaluate haemodynamic state and cardiac pathology in realtime. However, its use is restricted in patients after cardiac surgery due to reported poor image quality. The aim of this study was to determine the proportion of patients in whom haemodynamic state assessment is possible using a focused TTE protocol at repeated intervals after cardiac surgery. Method(s): Retrospective sub-study of a published prospective observational study of 91 adults undergoing coronary artery, valve and aortic surgery (1). Patients received TTE before, and at three time points after cardiac surgery. Images were assessed offline using a validated image quality score by two expert observers. Haemodynamic state was assessed using the iHeartScan protocol, which integrates left and right ventricular volumes, contractility, and left atrial filling pressure. Significant valvular pathology was discriminated using colour flow Doppler and two-dimensional assessment without requirement of spectral Doppler. The primary endpoint was the proportion of patients with at least one window in which the haemodynamic state was interpretable at each of the four time points. Result(s): In total, 51 patients were included in which haemodynamic state interpretability varied over time being highest before surgery (90%) and lowest on the first postoperative day (49%) (p<0.01). Variation in interpretability over time occurred in all three transthoracic windows ranging from 43% to 80% before surgery and from 2% to 35 on the first day after surgery (p<0.01). Similar variations over time were seen in terms of interpretability of function of aortic valve: 96% to 100% before surgery depending on the window and 59% to 82% on first postoperative day, mitral valve: 65% to 100% before surgery and 4% to 90% on first postoperative day, pulmonary valve: 80% before surgery and 41% on first postoperative

Published
2018

28. The Effect of Marital Violence on Infertility Distress among A Sample of Turkish Women

Author

Akyüz, A., Şahiner, G., MEMNUN SEVEN, and Bakir, B.

Subjects
lcsh:R5-920, Gynecology and Female Infertility, Infertility, Distress, Original Article, Psychology and Psychiatry, Violence, lcsh:Medicine (General)
Abstract

Background: The aim of this study was to determine the relationship between marital violence and distress level among women with a diagnosis of infertility. Materials and Methods: This cross-sectional study consisted of 139 married women diagnosed as primary infertile who applied to an in vitro fertilization (IVF) center in Turkey, between September and December 2009. A descriptive information questionnaire developed by the researcher was used for data collection. In addition, an infertility distress scale (IDS) for determining the severity effect of infertility and the scale for marital violence against women (SDVW) for determining level of marital violence against the women were used. Results: The total IDS score of the study sample was 37.76 ± 10.53. There was no significant relationship between the age and education level of the women and the total IDS score. The total IDS score was higher in women who did not work and those being treated for infertility for more than three years. The total SDVW score of the study sample was 67.0 ± 8.26. The total SDVW score was higher in women who had been trying to have a child for more than six years and had received infertility treatment for longer than three years. The employment status of the women and physical, emotional, and sexual violence scores had a statistically significant relationship with the IDS scores. The emotional violence score was found to have the highest significance among the variables affecting total IDS score. Conclusion: Marital violence is a factor increasing the distress of infertile women. Healthcare staff serving infertile couples should consider the possibility of domestic violence against women as a factor affecting the psychological infertility distress level.

Published
2014

29. Persistent left superior vena cava in patient with right atrial myxoma undergoing open heart surgery. A case report and review of literature.

Author

Elhamamsy, Mostafa, Aldemerdash, A, Zahran, F, Bakir, B, Alanazi, Nouf, Awadallah, Yasser, Haggag, Sami, and Alshiekh, Mahmoud

Subjects
VENA cava superior, MYXOMA, ATRIAL septal defects, SUBCLAVIAN veins, CARDIAC surgery, PATIENTS' rights
Abstract

Persistent left superior vena cava (PLSVC) is a rare and asymptomatic congenital cardiovascular anomaly. Being asymptomatic, PLSVC was usually discovered while performing interventions (such as insertion of central lines, Swan-Ganz catheters, or placing pacemakers) through the left internal jugular vein or left subclavian veins. Commonly, PLSVC is detected not only as an isolated congenital anomaly, but also it can be associated with many other cardiac anomalies. Also, presence of a dilated coronary sinus on echocardiography should raise the suspicion of PLSVC. The diagnosis should be confirmed by contrast venography or computed tomography angiography. The present case is a female patient, 29 year old, who was undergoing elective excision of a right atrial mass, with closure of patent foramen ovale, and she had end-stage renal failure on regular hemodialysis three times weekly through a permicath inserted in the right subclavian vein. [ABSTRACT FROM AUTHOR]

Published
2020
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31. Studying The Effect of Infertility on Marital Violence in Turkish Women

Author

Aygul Akyuz, Seven, M., Şahiner, G., and Bakir, B.

Subjects
lcsh:R5-920, Gynecology and Female Infertility, Risk Factor, Infertility, Original Article, Psychology and Psychiatry, Violence, infertility, lcsh:Medicine (General)
Abstract

Background: The aim of this descriptive study was to evaluate the level of marital violence among Turkish women and to determine whether infertility was a risk factor for marital violence. Materials and Methods: This descriptive study was conducted during January-July 2009 at a training hospital. The study groups comprised 204 fertile and 228 infertile women. We administered the Descriptive Information Questionnaire and Scale for Marital Violence against Women (SDVW) to obtain data. Results: There was a statistically significant difference between infertile and fertile women for the total score of violence in marriage. The emotional, economic and sexual violence scores were higher in the infertile group. However, the verbal violence score was lower Conclusion: We performed a detailed study aimed at uncovering the presence of any violence from the data collection stage to the end of treatment in infertile couples with the intent to include questions to this effect in the care plan.

Published
2013

32. Hybrid III–V on Silicon Laterally Coupled Distributed Feedback Laser Operating in the O-Band

Author

DUPREZ, Hélène, DESCOS, Antoine, Jany, C., Seassal, Christian, BEN BAKIR, B., Inl, Laboratoire INL UMR5270, INL - Nanophotonique (INL - Photonique), Institut des Nanotechnologies de Lyon (INL), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Lyon (ECL), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Alcatel-Thalès III-V lab (III-V Lab), and THALES-ALCATEL

Subjects
[PHYS]Physics [physics], [PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [SPI.OPTI] Engineering Sciences [physics]/Optics / Photonic, [SPI.NANO] Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, [SPI.MAT] Engineering Sciences [physics]/Materials, [SPI.MAT]Engineering Sciences [physics]/Materials, [PHYS] Physics [physics]
Abstract

International audience; We report on the design, fabrication, and performances of a hybrid III-V/Si laterally coupled distributed feedback laser operating in the O-band. Instead of etching the grating on top of the silicon waveguide, it is etched on its edges, thus lowering the number of fabrication steps and offering more design possibilities. At room temperature, a maximum output power as high as 20 mW was reached within the Si waveguide as well as a side mode suppression ratio above 40 dB on the whole current range.

Published
2016

33. Back-side integration of Hybrid III–V on Silicon DBR lasers

Author

Durel, J., primary, Bakir, B. Ben, additional, Jany, C., additional, Cremer, S., additional, Hassan, K., additional, Szelag, B., additional, Bria, T., additional, Larrey, V., additional, Sanchez, L., additional, Brianceau, P., additional, Dallery, J.-A, additional, Guiavarch, R., additional, Card, T., additional, Thibon, R., additional, Broquin, J.-E., additional, and Boeuf, F., additional

Published
2017
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35. First demonstration of a back-side integrated heterogeneous hybrid III-V/Si DBR lasers for Si-photonics applications

Author

Durel, J., primary, Ben Bakir, B., additional, Jany, C., additional, Cremer, S., additional, Szelag, B., additional, Bria, T., additional, Larrey, V., additional, Sanchez, L., additional, Brianceau, P., additional, Dallery, J.-A, additional, Guiavarch, R., additional, Card, T., additional, Thibon, R., additional, Broquin, J.-E., additional, and Bouf, F., additional

Published
2016
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36. Positive and negative phototunability of chalcogenide (AMTIR-1) microdisk resonator

Author

DUPREZ , Hélène, DESCOS , Antoine, FERROTTI , Thomas, Sciancalepore , Corrado, Jany , C., Hassan , K., Seassal , Christian, MENEZO , S., BEN BAKIR , B., INL - Nanophotonique ( INL - Photonique ), Institut des Nanotechnologies de Lyon ( INL ), École Centrale de Lyon ( ECL ), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon ( CPE ) -Institut National des Sciences Appliquées de Lyon ( INSA Lyon ), Université de Lyon-Institut National des Sciences Appliquées ( INSA ) -Institut National des Sciences Appliquées ( INSA ) -Centre National de la Recherche Scientifique ( CNRS ) -École Centrale de Lyon ( ECL ), Université de Lyon-Institut National des Sciences Appliquées ( INSA ) -Institut National des Sciences Appliquées ( INSA ) -Centre National de la Recherche Scientifique ( CNRS ), Alcatel-Thalès III-V lab ( III-V Lab ), THALES-ALCATEL, Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), and Université de Lyon

Subjects
[ SPI.MAT ] Engineering Sciences [physics]/Materials, [ SPI ] Engineering Sciences [physics], [ SPI.NANO ] Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, [ SPI.OPTI ] Engineering Sciences [physics]/Optics / Photonic
Abstract

International audience; We demonstrate externally photo-induced partially-reversible tuning of the resonance of a microdisk made of AMTIR-1 (Ge33As12Se55). We have achieved for the first time, to the best of our knowledge, both positive and negative shift in a microresonator with external tuning. A positive resonance shift of 1 nm and a negative resonance shift of 0.5 nm on a single microdisk has been measured. We have found that this phenomenon is due to initial photo-expansion of the microdisk followed by the photo-bleaching of the AMTIR-1. The observed shifts and the underlying phenomenon is controllable by varying the illumination power (i.e. the low power illumination suppresses the photobleaching process). We measure a loaded quality factor of 1.2x10(5) at 1550nm (limited by the measuring instrument). This holds promise for non-contact low power reversible-tunning of photonic circuit elements. (C) 2015 Optical Society of America

Published
2015

41. Introducing photonic devices for 40Gbits/s wavelength division multiplexing transceivers on 300-mm SOI wafers using CMOS processes

Author

BAUDOT, C., Fedeli, J.M., Marris-Morini, D., CAIRE-REMONNAY, Boris, Virot, L., Olivier, S., MYKO, A., Grosse, P., Grand, G., BEN BAKIR, B., Hartmann, J., Allouti, N., Barnola, S., Vizioz, C., Rivoire, M., Seignard, A., SOUHAITé, A., O CONNOR, I., Vivien, L., MENEZO, S., Institut d'électronique fondamentale (IEF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Département d'Optronique (DOPT), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), and Institut national de recherche et de sécurité (Vandoeuvre lès Nancy) (INRS ( Vandoeuvre lès Nancy))

Subjects
[SPI]Engineering Sciences [physics], [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, ComputingMilieux_MISCELLANEOUS, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract

International audience; no abstract

Published
2014

42. Optimization of the optical transmission of submicron silicon-on-insulator rib waveguides

Author

Fouchier, M., Pargon, E., BEN BAKIR, B., Brianceau, P., HARDUIN, J., Barnola, S., Grosse, P., Clot, Marielle, Laboratoire des technologies de la microélectronique (LTM), Université Joseph Fourier - Grenoble 1 (UJF)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS]Physics [physics], ComputingMilieux_MISCELLANEOUS, [PHYS] Physics [physics]
Abstract

International audience

Published
2014

44. Reflective silicon Mach Zender modulator with Faraday rotator mirror effect for self-coherent and self-polarization-aligned transmission

Author

Menezo, S., Charbonnier, B., Beninca De Farias, G., Grosse, P., Myko, A., Thomson, D.J., Reed, G.T., Lebreton, A, Fedeli, J.M., and Ben Bakir, B.

Abstract

An all-Silicon Reflective Mach Zehnder Modulator (Si-R-MZM) is proposed, providing the Faraday Rotator Mirror effect for achieving simple coherent demodulation. The Si-R-MZM is analytically described and measurements are made to assess the transmission performances.

Published
2013

45. Biliary Tract Reconstruction: Autologous Rectus Sheat Graft in The Repair of Common Bile Duct Defects: An Experimental Study

Author

GÜLER, O., AYDIN, M., DİLEK, H., BAKIR, B., IRMAK, H., and ARAS, A.

Abstract

Objectives: Common bile duct (CBD) injuries cause sig-nificant morbidity and mortality. CBD injuries can berepaired by various approaches. In biliary tract recon-struction for CBD defect, we used a graft which weobtained from the posterior sheat of the rectus muscle.Method: This experimental study was carried out oneight street dogs. A tissue fragment was excised fromthe posterior sheat of the rectus muscle together withthe fascia transversalis and peritoneum. A tube of fas-cia graft was wrapped around an FG G feeding tube.Results: Anastomotic insufficiency was determined inone dog who died on the thirteenth day. The fascialgraft gained an appearance similar to bile duct in otherdogs. Blood biochemical parameters were normal.Conclusion: We concluded that fascia graft can be usedin repair of CBD defect as an alternative method.Key words: Biliary defect, fascial graft, reconstruction.

Published
2013

46. Neoadjuvant Volumetric Modulated Arc Therapy Simultaneous Integrated Boost (SIB-VMAT) With Concurrent Chemotherapy in Rectal Adenocarcinomas and the Correlation of Pathological Response With Diffusion-Weighted MRI and Apoptotic Markers

Author

Gürdal, N., primary, Fayda, M., additional, Bakir, B., additional, Alishev, N., additional, Gezer, U., additional, Tastekin, D., additional, çiftçi, R., additional, Akbas, U., additional, Sahin, D., additional, Balik, E., additional, Yanar, H., additional, Keskin, M., additional, Ilhan, M., additional, Dagoglu, R.N., additional, Saglam, E.K., additional, Oral, E.N., additional, Aykan, F., additional, and Kizir, A., additional

Published
2015
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49. Hybrid III-V lasers on silicon

Author

Olivier, S., primary, Malhouitre, S., additional, Kopp, C., additional, Ben Bakir, B., additional, Descos, A., additional, Bordel, D., additional, Menezo, S., additional, Fedeli, J-M, additional, Duan, G-H, additional, Kaspar, P., additional, Jany, C., additional, Le liepvre, A., additional, Accard, A., additional, Make, D., additional, Girard, N., additional, Levaufre, G., additional, Shen, A., additional, Charbonnier, P., additional, Mallecot, F., additional, Lelarge, F., additional, and Gentner, J-L, additional

Published
2014
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50. Investigation of the seroprevalance of maedi-visna in the region of van using elisa and histopathological findings

Author

Akkan, H. A., Karaca, M., Tütüncü, M., Keles, I., Ilhan, F., Yunus Cetin, Özkan, C., Bakir, B., and Tasal, I.

Abstract

In the present study, seroprevalance of maedi-visna in sheep in the region of Van was aimed to investigate. A total of 465 serum samples obtained from sheep raised in Van and its towns were investigated with regard to maedi-visna specific antibody using ELISA procedure. Out of 465 samples 30 of them were seropositive (6.45%) and 20 of them were doubtful (4.30%) according to test procedure. Histopathology was also applied to some of these sheep which slaughtered in an abattoir after blood sampling. According to histopathological analysis 9 doubtful samples were also found to be positive. But, due to mild lymphoproliferation in there samples ELISA gave doubtful results. As a result with this study, seroprevalance of maedi-visna was determined in the region of Van and in the doubtful cases histopathological assessments believed to strengthen serological findings.

Published
2009

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