Multilayer screen gives cathode ray tube high contrast

Fabrication method for cathode ray tubes uses low-cost siloxane resin formulations. The resins contain sufficient methyl or phenyl groups for solubility in organic solvents. After vaporization and baking, the polymerized material is stable under vacuum and under temperatures required for tube fabrication

Instance Flow Based Online Multiple Object Tracking

We present a method to perform online Multiple Object Tracking (MOT) of known object categories in monocular video data. Current Tracking-by-Detection MOT approaches build on top of 2D bounding box detections. In contrast, we exploit state-of-the-art instance aware semantic segmentation techniques to compute 2D shape representations of target objects in each frame. We predict position and shape of segmented instances in subsequent frames by exploiting optical flow cues. We define an affinity matrix between instances of subsequent frames which reflects locality and visual similarity. The instance association is solved by applying the Hungarian method. We evaluate different configurations of our algorithm using the MOT 2D 2015 train dataset. The evaluation shows that our tracking approach is able to track objects with high relative motions. In addition, we provide results of our approach on the MOT 2D 2015 test set for comparison with previous works. We achieve a MOTA score of 32.1

Low Back Pain and Mechanical Diagnosis Treatment: A Case Report

Background and Purpose: Acute low back pain is one of the most common and expensive reasons for adults to see a family physician and is commonly treated by physical therapists. Although most patients recover quickly with minimal treatment, patient education and exercises directed by a physical therapist may decrease recurrent pain and need for health care services. The purpose of this case study is to determine if the McKenzie Method is effective treatment for acute low back pain in the medical workforce using evidence based practice. Case Description: Patient was a 37-year-old Caucasian female who worked as a registered nurse in a rural hospital. She experienced acute low back pain injury when attempting to transfer a patient. Patient stated there was an audible pop, in her back at time of injury. Patient was prescribed Flexeril and Percocet in the emergency department and was experiencing high levels of pain with radiating symptoms from her right low back into her right foot. Outcomes: The patient responded well to initial treatment. Patient was able to meet her short term and long-term goals while using the McKenzie Method with only 4 treatment sessions. Discussion: Overall, the patient responded well to the McKenzie treatment approach. It seems that further research needs to be completed on the efficacy of McKenzie treatment despite the positive outcomes in this case study. Limitations exist due to the lack of functional assessment application

Witches, Bitches, and the Patriarchy: Gender and Power in the Harry Potter Series

At the start of the Harry Potter series, J.K. Rowling employs traditional gendered thinking in her construction of character roles, but as the series continues, the gender roles are complicated. In the three main communities of J.K. Rowling’s world – the Ministry, Hogwarts School of Witchcraft and Wizardry, and the societies of the Death Eaters and the Order of the Phoenix – a struggle between the constructive, equalizing force of white magic and the violent, dominating force of black magic influences the gender roles operative in each. As a vehicle for the exercise of magic, the nuclear family also influences wizarding society in similarly bipolar ways, perpetuating patriarchal ideas while simultaneously encouraging the power of motherhood and maternal love. One sees the patriarchal impact of the family paradigm on the novel’s central female character Hermione Granger, who defies gender norms in her adeptness in white magic and her heroic partnership with Harry himself, but who ultimately dwindles into a stereotypically feminine role as Ron’s wife in the series epilogue. My analysis will focus on Rowling’s fictions rather than her adaptations and I use primarily gender and feminist critical lenses in a close textual reading. As a feminist critic, I will examine how J.K. Rowling’s wizarding world in the Harry Potter series handles the binary of black and white magic and the gender inclusiveness of both forms of magic in their relative spheres. I focus on the novels themselves rather than on J.K. Rowling’s intentionality and will not rely on much of the post-publication digital interplay Rowling and others have conducted to prevent any digression on my part into how fanbase bias may have influenced plot choices and character development. For that reason, I limit my use of the informational site Pottermore.com to relevant historical 2 details and post-series character additions. My focus remains on the published volumes themselves and what they demonstrate regarding the gender dynamics that unfold across the series. The gender dynamics present within the Harry Potter series are complex and dynamic, creating a world rife with possibilities for readers and for the characters themselves. Rowling writes several female characters who embody the Manichean struggle between the inclusive power of white magic and the hierarchical, dominating force of black magic. Through these women, Rowling attempts to collapse the binary between female and male traits and create a society free of polarizing gendered stereotypes, and through such women as Molly Weasley, Minerva McGonagall, and Hermione Granger, she succeeds

Online-Shopping, stationärer Handel, Einkaufszentren und die Städte – was kommt auf uns zu?

Die aktuellen und absehbaren Entwicklungstendenzen im Onlinehandel sowie deren Auswirkungen auf den stationären Einzelhandel insgesamt, die Shopping-Center im Speziellen und vor allem auf die Stadtzentren – als traditionelle Schwerpunkte des lokalen Handelsgeschehens – sind Gegenstand einer wachsenden Zahl von Veranstaltungen und Publikationen. Im Folgenden wird zunächst (Ziff. 2) die bisherige quantitative Entwicklung des interaktiven Handels in Deutschland, Österreich und der Schweiz dargestellt, ebenso eine Reihe von mit dem Onlinehandel verbundenen Herausforderungen und Problemen, die die weitere Entwicklung absehbar beeinflussen. Sodann werden die aktuell erkennbaren Auswirkungen des Onlinehandels auf die stationären Einzelhandelsgeschäfte (Ziff. 3.1) und die Shopping-Center (Ziff. 3.2) analysiert, ebenso deren Möglichkeiten, darauf zu reagieren und sich auf eine Zukunft unter dem Einfluss und unter Nutzung des Onlinehandels einzustellen. Während über die Auswirkungen des interaktiven Handels auf den stationären Handel und die Einkaufszentren schon diverse Untersuchungen vorliegen, ist die Frage nach den Auswirkungen auf die Stadtstrukturen noch weitgehend ungeklärt. Im abschließenden Teil des Papers (Ziff. 4) wird deshalb nach einer historisch angelegten Betrachtung der Herausbildung städtischer Handelslagen (Ziff. 4.1 und 4.2) die These diskutiert, der Onlinehandel sei hinsichtlich der räumlichen Entwicklungen der Siedlungsstrukturen und insbesondere der Veränderung städtischer Handelsstrukturen zwar nicht neutral, werde aber keine eigenständigen Auswirkungen zeitigen, sondern allenfalls bereits ohnehin beobachtbare Entwicklungen beschleunigen. Damit trifft er auf Gemeinde- und Stadtzentren (und Stadtteilzentren), die nicht nur in Deutschland ohnehin schon lange in ihrer Struktur und Vielfalt – und damit auch in ihrer Widerstandsfähigkeit gegen die Wirkungen des Onlinehandels – gefährdet sind aufgrund des laufenden wirtschaftlichen Wandels und der zunehmenden Konzentration im Handel sowie aufgrund der räumlichen Entwicklung der vergangenen Jahre und Jahrzehnte, die zu einem zunehmenden Auszug von Handelsaktivitäten aus den städtischen Zentren hin an periphere, nicht-zentrale Standorte geführt hat (Ziff. 4.3). In das Paper gehen Literaturrecherchen ebenso ein wie praktische Erfahrungen des Autors aus seiner langjährigen Tätigkeit im Schnittpunkt von Shopping-Center- und Stadtentwicklun

On output feedback nonlinear model predictive control using high gain observers for a class of systems

In recent years, nonlinear model predictive control schemes have been derived that guarantee stability of the closed loop under the assumption of full state information. However, only limited advances have been made with respect to output feedback in connection to nonlinear predictive control. Most of the existing approaches for output feedback nonlinear model predictive control do only guarantee local stability. Here we consider the combination of stabilizing instantaneous NMPC schemes with high gain observers. For a special MIMO system class we show that the closed loop is asymptotically stable, and that the output feedback NMPC scheme recovers the performance of the state feedback in the sense that the region of attraction and the trajectories of the state feedback scheme are recovered for a high gain observer with large enough gain and thus leading to semi-global/non-local results