The University of Ottawa is a bilingual public research university in Ottawa, Ontario, Canada. The main campus is located on 42.5 hectares in the residential neighbourhood of Sandy Hill, adjacent to Ottawa's Rideau Canal. The university offers a wide variety of academic programs, administered by ten faculties. It is a member of the U15, a group of research-intensive universities in Canada.The University of Ottawa was first established as the College of Bytown in 1848 by the first bishop of the Catholic Archdiocese of Ottawa, Joseph-Bruno Guigues. Placed under the direction of the Oblates of Mary Immaculate, it was renamed the College of Ottawa in 1861 and received university status five years later through royal charter. On 5 February 1889, the university was granted a pontifical charter by Pope Leo XIII, elevating the institution to a pontifical university. The University was reorganized on 1 July 1965 as a corporation, independent from any outside body or religious organization. As a result, the civil and pontifical charters were kept by the newly created Saint Paul University, federated with the university. The remaining civil faculties were retained by the reorganized university.The university is co-educational and enrolls over 40,000 students, over 35,000 undergraduate and over 6,000 post-graduate students. The university has more than 185,000 alumni. The university's athletic teams are known as the Gee-Gees and are members of Canadian Interuniversity Sport. Wikipedia.
Stewart D.J.,University of Ottawa
Journal of the National Cancer Institute | Year: 2014
Wnt/β-catenin alterations are prominent in human malignancies. In non-small cell lung cancer (NSCLC), β-catenin and APC mutations are uncommon, but Wnt signaling is important in NSCLC cell lines, and Wnt inhibition reduces proliferation. Overexpression of Wnt-1,-2,-3, and-5a and of Wnt-pathway components Frizzled-8, Dishevelled, Porcupine, and TCF-4 is common in resected NSCLC and is associated with poor prognosis. Conversely, noncanonical Wnt-7a suppresses NSCLC development and is often downregulated. Although β-catenin is often expressed in NSCLCs, it was paradoxically associated with improved prognosis in some series, possibly because of E-cadherin interactions. Downregulation of Wnt inhibitors (eg, by hypermethylation) is common in NSCLC tumor cell lines and resected samples; may be associated with high stage, dedifferentiation, and poor prognosis; and has been reported for AXIN, sFRPs 1-5, WIF-1, Dkk-1, Dkk-3, HDPR1, RUNX3, APC, CDX2, DACT2, TMEM88, Chibby, NKD1, EMX2, ING4, and miR-487b. AXIN is also destabilized by tankyrases, and GSK3β may be inactivated through phosphorylation by EGFR. Preclinically, restoration of Wnt inhibitor function is associated with reduced Wnt signaling, decreased cell proliferation, and increased apoptosis. Wnt signaling may also augment resistance to cisplatin, docetaxel, and radiotherapy, and Wnt inhibitors may restore sensitivity. Overall, available data indicate that Wnt signaling substantially impacts NSCLC tumorigenesis, prognosis, and resistance to therapy, with loss of Wnt signaling inhibitors by promoter hypermethylation or other mechanisms appearing to be particularly important. Wnt pathway antagonists warrant exploration clinically in NSCLC. Agents blocking selected specific β-catenin interactions and approaches to increase expression of downregulated Wnt inhibitors may be of particular interest. © 2013 The Author. Source
Liu W.,University of Ottawa
Nature Photonics | Year: 2016
Photonic signal processing has been considered a solution to overcome the inherent electronic speed limitations. Over the past few years, an impressive range of photonic integrated signal processors have been proposed, but they usually offer limited reconfigurability, a feature highly needed for the implementation of large-scale general-purpose photonic signal processors. Here, we report and experimentally demonstrate a fully reconfigurable photonic integrated signal processor based on an InP–InGaAsP material system. The proposed photonic signal processor is capable of performing reconfigurable signal processing functions including temporal integration, temporal differentiation and Hilbert transformation. The reconfigurability is achieved by controlling the injection currents to the active components of the signal processor. Our demonstration suggests great potential for chip-scale fully programmable all-optical signal processing. © 2016 Nature Publishing Group Source
University of Ottawa | Date: 2015-03-03
A method and apparatus for producing single mode random fiber ring laser by inducing random distributed feedback in a short section of the fiber ring to thereby enable single mode lasing while reducing frequency jitter and relative intensity noise. The random distributed feedback maybe achieved through deep refractive index modulation at a series of randomly distributed laser-irradiated points inscribed along the length of the induced random distributed feedback fiber. The laser-processed random distributed feedback fiber maybe incorporated into the fiber ring in conjunction with a variable optical attenuator and band pass optical filter for enhancing the single mode operation.
University of Ottawa | Date: 2015-09-09
Ice recrystallization inhibitor (IRI) compounds and methods for cryopreserving umbilical cord blood are provided. The compounds are unsubstituted, mono-substituted, or di-substituted aryl-adlonamides. The methods include fractionating whole umbilical cord blood to generate a fraction comprising hematopoietic stem cells, mixing the hematopoietic stem cells with at least one IRI compound to form an IRI suspension, and freezing the IRI suspension.
University of Ottawa | Date: 2015-05-05
There are provided fluorescent labelling agents comprising a dimaleimide core connected to a fluorophore, processes for preparation thereof, and uses thereof for labelling and/or detection of specific protein targets. Fluorescent labelling agents comprising a compound having the structure of Formula I, and salts thereof, are described.