A micro CO2 gas sensor based on sensing of pH-sensitive hydrogel swelling by means of a pressure sensor

In this paper a sensor is presented for the detection of carbon dioxide gas inside the stomach in order to diagnose gastrointestinal ischemia. The operational principle of the sensor is measuring the CO/sub 2/ induced pressure generation of a confined pH-sensitive hydrogel by means of a micro pressure sensor. The sensor is capable of measuring CO/sub 2/ with a response time between 2 and 4 minutes and a maximum pressure of 0.29/spl times/10/sup 5/ Pa at 20 kPa CO/sub 2/. The sensor is able to resist up to 1 M HCl acid as can be present inside the stomach. The results are very promising for real application and clinical trials are planned

Persuasive Technology for Learning in Business Context

"Persuasive Design is a relatively new concept which employs general principles of persuasion that can be implemented in persuasive technology. This concept has been introduced by BJ Fogg in 1998, who since then has further extended it to use computers for changing attitudes and behaviour. Such principles can be applied very well in learning and teaching: in traditional human-led learning, teachers always have employed persuasion as one of the elements of teaching. Persuasive technology moves these principles into the digital domain, by focusing on technology that inherently stimulates learners to learn more quickly and effectively. This is very relevant for the area of Business Management in several aspects: Consumer Behavior, Communications, Human Resource, Marketing & Advertising, Organisational Behavior & Leadership. The persuasive principles identified by BJ Fogg are: reduction, tunnelling, tailoring, suggestion, self-monitoring, surveillance, conditioning, simulation, social signals. Also relevant is the concept of KAIROS, which means the just-in-time, at the right place provision of information/stimulus. In the EuroPLOT project (2010-2013) we have developed persuasive learning objects and tools (PLOTs) in which we have applied persuasive designs and principles. In this context, we have developed a pedagogical framework for active engagement, based on persuasive design in which the principles of persuasive learning have been formalised in a 6-step guide for persuasive learning. These principles have been embedded in two tools – PLOTmaker and PLOTLearner – which have been developed for creating persuasive learning objects. The tools provide specific capability for implementing persuasive principles at the very beginning of the design of learning objects. The feasibility of employing persuasive learning concepts with these tools has been investigated in four different case studies with groups of teachers and learners from realms with distinctly different teaching and learning practices: Business Computing, language learning, museum learning, and chemical substance handling. These case studies have involved the following learner target groups: school children, university students, tertiary students, vocational learners and adult learners. With regards to the learning context, they address archive-based learning, industrial training, and academic teaching. Alltogether, these case studies include participants from Sweden, Africa (Madagascar), Denmark, Czech Republic, and UK. One of the outcomes of this investigation was that one cannot apply a common set of persuasive designs that would be valid for general use in all situations: on the contrary, the persuasive principles are very specific to learning contexts and therefore must be specifically tailored for each situation. Two of these case studies have a direct relevance to education in the realm of Business Management: Business Computing and language learning (for International Business). In this paper we will present the first results from the evaluation of persuasive technology driven learning in these two relevant areas.

Dysregulation of Na+/K+ ATPase by amyloid in APP+PS1 transgenic mice

BACKGROUND: The pathology of Alzheimer's disease (AD) is comprised of extracellular amyloid plaques, intracellular tau tangles, dystrophic neurites and neurodegeneration. The mechanisms by which these various pathological features arise are under intense investigation. Here, expanding upon pilot gene expression studies, we have further analyzed the relationship between Na+/K+ ATPase and amyloid using APP+PS1 transgenic mice, a model that develops amyloid plaques and memory deficits in the absence of tangle formation and neuronal or synaptic loss. RESULTS: We report that in addition to decreased mRNA expression, there was decreased overall Na+/K+ ATPase enzyme activity in the amyloid-containing hippocampi of the APP+PS1 mice (although not in the amyloid-free cerebellum). In addition, dual immunolabeling revealed an absence of Na+/K+ ATPase staining in a zone surrounding congophilic plaques that was occupied by dystrophic neurites. We also demonstrate that cerebral Na+/K+ ATPase activity can be directly inhibited by high concentrations of soluble Aβ. CONCLUSIONS: The data suggest that the reductions in Na+/K+ ATPase activity in Alzheimer tissue may not be purely secondary to neuronal loss, but may results from direct effects of amyloid on this enzyme. This disruption of ion homeostasis and osmotic balance may interfere with normal electrotonic properties of dendrites, blocking intraneuronal signal processing, and contribute to neuritic dystrophia. These results suggest that therapies aimed at enhancing Na+/K+ ATPase activity in AD may improve symptoms and/or delay disease progression

Nodal phases in non-Hermitian wallpaper crystals

Symmetry and non-Hermiticity play pivotal roles in photonic lattices. While symmetries such as parity-time ($\mathcal{PT}$) symmetry have attracted ample attention, more intricate crystalline symmetries have been neglected in comparison. Here, we investigate the impact of the 17 wallpaper space groups of two-dimensional crystals on non-Hermitian band structures. We show that the non-trivial space group representations enforce degeneracies at high symmetry points and dictate their dispersion away from these points. In combination with either $\mathcal{T}$ or $\mathcal{PT}$, the symmorphic p4mm symmetry, as well as the non-symmorphic p2mg, p2gg, and p4gm symmetries, protect novel exceptional chains intersecting at the pertinent high symmetry points.Comment: 6 pages, 2 figure

Ḥarqūs

Le ḥarqūs est un décor corporel très répandu dans l’ensemble du Maghreb. Très proche du tatouage dont il reproduit et la technique et les motifs, il s’en différencie par son caractère temporaire. L’harqûs ne dure que quelques jours et se présente comme une peinture destinée à décorer et à protéger les personnes qui la portent. Celles-ci peuvent appartenir à des catégories sociales différentes, aussi bien à des prostituées qu’à de jeunes mariées de famille honorable. Fabrication du ḥarqūs Dans..

The Ursinus Weekly, March 2, 1942

D\u27ascenzo Studios present lecture on art glass windows • Kukan, story of Sino-Jap struggle, to be shown here • Women meet by classes and ballot for Berky\u27s May pageant attendants • Patriotic theme and Sheble\u27s tunes to be features of sophomore hop • Fourteen from Ursinus will attend weekend conclave at Buck Hill Falls • Pre-medders will hear Dr. Max Strumia speak on blood transfusion • Co-ed debaters plan to visit Rutgers, Upsala; debate Lebanon Valley • Vespers audience hears of problems confronting youth • Willauer stresses need for economic equality as basis for world peace • Dr. Finnie will address weekly Lenten service • Book reviews by Tuers and Swartley provide English Club program • UCFAOD decides that Ucollegia should make all-out war effort • Y\u27s Carmen Morena writes letter to her foster parents • Men debaters travel to foreign campuses and debate labor question • New spring intramural program to begin after March 15 • Bears blast Red Devils, 52-36, but Gettysburg\u27s late rally wins, 40-38 • Forfeit in heavy class gives Temple grapplers 16-16 tie against bears • Co-eds invade south to trounce William and Mary lassies, 42-18 • Perkiomen stops cub five, 34-33, Wednesday; Norristown Y wins 70-53 • Five games played this week in co-ed basketball leaguehttps://digitalcommons.ursinus.edu/weekly/1778/thumbnail.jp

The Ursinus Weekly, October 13, 1941

Hoopes selects Ruby editorial staff; Spohn presents finance problems • Biscotte heads senior weekend on December 12-13 • Ursinus graduate interprets causes of world crisis • W. Virginia grad is speaker for Y meeting Wednesday • Reverend Lentz marries Mrs. Stella Hendrickson at Bound Brook, NJ • Pre-med society will plan programs for this year at meeting next Tuesday • Vacancies filled on Weekly staffs by eight reporters • The law nabs verdant freshmen in act of exterior decorating • Nearly 200 stags, drags, grads at informal Freeland frolic • Outstanding speakers and exchange program are plans for vespers • Juniors name Morrow prexy in closely contested election • Delaware\u27s Blue Hens spoil Pete Stevens\u27 Day celebration by severely trouncing bear gridders 24-0 here Saturday • Snell\u27s charges open season with 4-0 win over Glassboro Friday • Ford soccermen prove too much for bears, 5-0https://digitalcommons.ursinus.edu/weekly/1765/thumbnail.jp

Order-disorder in coexisting plagioclase and alkali feldspar from the Mineral Range of southwest Utah

Online access for this thesis was created in part with support from the Institute of Museum and Library Services (IMLS) administered by the Nevada State Library, Archives and Public Records through the Library Services and Technology Act (LSTA). To obtain a high quality image or document please contact the DeLaMare Library at https://unr.libanswers.com/ or call: 775-784-6945.Estimates of degree of order were made on 30 chemically analyzed pairs of coexisting alkali and plagioclase feldspars sampled transverse to the granitic Mineral Range pluton of southwest Utah

The Ursinus Weekly, November 3, 1941

Two fathers of Ursinus students will speak at annual dads\u27 day banquet • Seniors to get acquainted at informal party November 5 • Students attend chats held by Y to discuss two pertinent questions • Christ in the fine arts is vespers theme on Sunday • Co-eds to sport gala clothes after Y bazaar Friday • Dr. Price will present paper on nervous system to pre-meds • Manuscript Club members read original poems and essays • Mrs. Harvey Carter leads talk of A.E.F. to combat Axis powers • Officers to select new members at Curtain Club tryouts November 12 • Ursinus places six on all-star hockey team in weekend tournament • Frosh elect prexy; Juniors take him in custody; Sophs burn up • Lehigh collegians provide airs for Old Timers\u27 dance • U.S. expeditionary force is topic of women\u27s Debate Club meeting • Nineteen attend fall reunion as Cub and Key banquets • Far East forum, conference highlight I.R.C. business • What about the post-war era? • Wanted: A program for peace • Second Grizzly Gridder is replete with features • Society notes • Among our alumni • Weekly devotional services aim to meet spiritual needs • Intramurals • Bear booters lose two games in week\u27s play; Jay-Vees lose to Hill • Swarthmore girls hand hockeyites first defeat, 4-1 • Mud and Muhlenberg swamp bears by 26-6 score in Old Timers\u27 Day classic • Hashagen issues initial call for basketball candidateshttps://digitalcommons.ursinus.edu/weekly/3103/thumbnail.jp