State-independent all-versus-nothing arguments

Contextuality is a key feature of quantum information that challenges classical intuitions, providing the basis for constructing explicit proofs of quantum advantage. While a number of evidences of quantum advantage are based on the contextuality argument, the definition of contextuality is different in each research, causing incoherence in the establishment of instant connection between their results. In this report, we review the mathematical structure of sheaf-theoretic contextuality and extend this framework to explain Kochen-Specker type contextuality. We first cover the definitions in contextuality with detailed examples. Then, we state the all-versus-nothing (AvN) argument and define a state-independent AvN class. It is shown that Kochen-Specker type contextuality, or contextuality in a partial closure, can be translated into this framework by the partial closure of observables under the multiplication of commuting measurements. Finally, we compare each case of contextuality in an operator-side view, where the strict hierarchy of contextuality class in a state-side view seems to merge into the state-independent AvN class together with the partial closure formalism. Overall, this report provides a unified interpretation of contextuality by integrating Kochen-Specker type notions into the state-independent AvN argument. The results present novel insights into contextuality, which pave the way for a coherent approach to constructing proofs of quantum advantage.Comment: 34 pages, 7 figures, master's thesis submitted to University College Londo

Molecular nature of the a1a_1(1260) axial-vector meson

We investigate $\pi\rho$ scattering based on the coupled-channel formalism with the $\pi\rho$ and $K\bar{K}^*$ ($\bar{K}K^*$) channels included. We construct the kernel amplitudes by using the meson-exchange model and compute the coupled integral equation for $\pi\rho$ scattering. By performing the partial-wave expansion, we show explicitly that the $a_1(1260)$ meson is dynamically generated by the coupled-channel formalism. The $a_1$ meson only appears by including the $K\bar{K}^*$ ($\bar{K}K^*$) channel. We obtain the pole position of the $a_1$ meson as $\sqrt{s_R} = (1170.7 - i 173.0)$ MeV. We conclude that the $a_1$ meson can be interpreted as a kaon and vector kaon molecular state.Comment: 8 pages and 4 figures. The results are update

Combinatorial Nanopowder Synthesis Along the ZnO–Al 2 O 3 Tie Line Using Liquid‐Feed Flame Spray Pyrolysis

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/86932/1/jace4585.pd

L'interprétation intersubjective dans un cercle littéraire au 2e cycle du secondaire québécois

Dans le cadre de notre recherche, nous souhaitons déterminer si la communauté de lecteurs exerce une régulation idéologique sur la diversité des interprétations formulées dans un cercle littéraire. Pour ce faire, nous avons réalisé une recherche qualitative auprès de cinq lecteurs du deuxième cycle du secondaire dans une école de la région de Québec. Nous avons ainsi observé l’influence des discours des pairs sur la compréhension et l’interprétation du texte littéraire. Nous nous sommes intéressée en particulier aux rôles des valeurs communes, principalement en ce qui a trait à la diversité sexuelle et à l’égalité entre les hommes et les femmes, dans la diversification des interprétations proposées par les élèves. Les résultats montrent que, dans une certaine mesure, la communauté de lecteurs exerce une régulation idéologique sur la diversité interprétative, en particulier lorsqu’il est question de discussion à caractère axiologique dans le cercle littéraire. Cependant, les discussions permettent également d’enrichir et de complexifier l’interprétation initiale des sujets lecteurs, entre autres, puisqu’ils mobilisent différentes attitudes réflexives et critiques pour soutenir et élaborer les hypothèses énoncées pendant les discussions.As part of our research, we wanted to determine whether the reader’s community exerts ideological control over the interpretative diversity in a literary circle. To do this, we performed qualitative research with five students from secondary school in the region of Quebec. We observed the influence of peers in understanding and interpretation. We were particularly interested in the roles of common values, principally in relation with sexual diversity and gender equality through the diversification of interpretations proposed by students. Our results show that, to some extent, the community of readers’ exercise ideological control over the interpretative diversity, especially when it comes to axiological discussion in the literary circle. However, discussions also help to enrich and complexify the initial interpretation of readers as mobilizing different reflexive and critical attitudes to support and develop the assumptions made during the discussions

Langue et culture dans l’enseignement du français langue étrangère aux adultes au Québec

Dans l’enseignement du français langue étrangère, les approches d’enseignement préconisées et les prescriptions officielles accordent une place insuffisante à la culture, souvent présentée dans une perspective sociologique et folklorisée. Dans cet article, nous proposons de montrer en quoi l’approche culturelle comporte des pistes de réflexion pertinentes pour l’enseignement du français langue étrangère à un public adulte au Québec.

Video-rate laser Doppler vibrometry by heterodyne holography

We report a demonstration video-rate heterodyne holography in off-axis configuration. Reconstruction and display of 1 Megapixel holograms is achieved at 24 frames per second, with a graphics processing unit. Our claims are validated with real-time screening of steady-state vibration amplitudes in a wide-field, non-contact vibrometry experiment.Comment: Optics Letters (2011) 00

Ectopic corticotropin-releasing hormone (CRH) syndrome from metastatic small cell carcinoma: a case report and review of the literature

<p>Abstract</p> <p>Background</p> <p>Cushing's Syndrome (CS) which is caused by isolated Corticotropin-releasing hormone (CRH) production, rather than adrenocorticotropin (ACTH) production, is extremely rare.</p> <p>Methods</p> <p>We describe the clinical presentation, course, laboratory values and pathologic findings of a patient with isolated ectopic CRH causing CS. We review the literature of the types of tumors associated with this unusual syndrome and the behavior of these tumors by endocrine testing.</p> <p>Results</p> <p>A 56 year old woman presented with clinical and laboratory features consistent with ACTH-dependent CS. Pituitary imaging was normal and cortisol did not suppress with a high dose dexamethasone test, consistent with a diagnosis of ectopic ACTH. CT imaging did not reveal any discrete lung lesions but there were mediastinal and abdominal lymphadenopathy and multiple liver lesions suspicious for metastatic disease. Laboratory testing was positive for elevated serum carcinoembryonic antigen and the neuroendocrine marker chromogranin A. Serum markers of carcinoid, medullary thyroid carcinoma, and pheochromocytoma were in the normal range. Because the primary tumor could not be identified by imaging, biopsy of the presumed metastatic liver lesions was performed. Immunohistochemistry was consistent with a neuroendocrine tumor, specifically small cell carcinoma. Immunostaining for ACTH was negative but was strongly positive for CRH and laboratory testing revealed a plasma CRH of 10 pg/ml (normal 0 to 10 pg/ml) which should have been suppressed in the presence of high cortisol.</p> <p>Conclusions</p> <p>This case illustrates the importance of considering the ectopic production of CRH in the differential diagnosis for presentations of ACTH-dependent Cushing's Syndrome.</p

The first reported case of a patient with pancreatic cancer treated with cone beam computed tomography-guided stereotactic adaptive radiotherapy (CT-STAR)

BACKGROUND: Online adaptive stereotactic radiotherapy allows for improved target and organ at risk (OAR) delineation and inter-fraction motion management via daily adaptive planning. The use of adaptive SBRT for the treatment of pancreatic cancer (performed until now using only MRI or CT on rails-guided adaptive radiotherapy), has yielded promising outcomes. Herein we describe the first reported case of cone beam CT-guided stereotactic adaptive radiotherapy (CT-STAR) for the treatment of pancreatic cancer. CASE PRESENTATION: A 61-year-old female with metastatic pancreatic cancer presented for durable palliation of a symptomatic primary pancreatic mass. She was prescribed 35 Gy/5 fractions utilizing CT-STAR. The patient was simulated utilizing an end-exhale CT with intravenous and oral bowel contrast. Both initial as well as daily adapted plans were created adhering to a strict isotoxicity approach in which coverage was sacrificed to meet critical luminal gastrointestinal OAR hard constraints. Kilovoltage cone beam CTs were acquired on each day of treatment and the radiation oncologist edited OAR contours to reflect the patient\u27s anatomy-of-the-day. The initial and adapted plan were compared using dose volume histogram objectives, and the superior plan was delivered. Use of the initial treatment plan would have resulted in nine critical OAR hard constraint violations. The adapted plans achieved hard constraints in all five fractions for all four critical luminal gastrointestinal structures. CONCLUSIONS: We report the successful treatment of a patient with pancreatic cancer treated with CT-STAR. Prior to this treatment, the delivery of ablative adaptive radiotherapy for pancreatic cancer was limited to clinics with MR-guided and CT-on-rails adaptive SBRT technology and workflows. CT-STAR is a promising modality with which to deliver stereotactic adaptive radiotherapy for pancreatic cancer

Faculty Recital Series: Sonneries Woodwind Quintet: Kim Risinger, Flute; Jillian Kouzel, Oboe; David Gresham, Clarinet; Rachel Hockenberry, French Horn; Midori Samson, Bassoon; February 13, 2023

Kemp Recital HallFebruary 13, 2023Monday Evening7:00 p.m