MODELLING THE ELECTRON WITH COSSERAT ELASTICITY

Interactions between a finite number of bodies and the surrounding fluid, in a channel for instance, are investigated theoretically. In the planar model here the bodies or modelled grains are thin solid bodies free to move in a nearly parallel formation within a quasi-inviscid fluid. The investigation involves numerical and analytical studies and comparisons. The three main features that appear are a linear instability about a state of uniform motion, a clashing of the bodies (or of a body with a side wall) within a finite scaled time when nonlinear interaction takes effect, and a continuum-limit description of the body–fluid interaction holding for the case of many bodies

Energetics of ion selectivity in slit-like pores

We study the effect of the charge and/or size asymmetry, we show results for a wide range of electrode charge and we study the effect of charge and size asymmetry on the electrode potential, and the competition of two cations of different size and valence near a highly charged electrode. If the ions have different diameters and/or valences, the electrode potential is nonzero even if the electrode charge is zero (PZC potential). Size and valence asymmetries are two competing effects regarding the sign and magnitude of the PZC potential

The Behavior of 2:1 and 3:1 Electrolytes at Polarizable Interfaces

The behavior of the electrical double layer (DL) is known to be different at polarizable interfaces, specifically, at a metallic electrode (where the dielectric constant of the electrode is infinitely large, ε1 → ∞) and at an air/electrolyte interface (where the dielectric constant of the electrode is ε1 = 1) than is the case for unpolarized interfaces. For the polarized interface, if multivalent ions are present, these ions are attracted/repelled more than is the case for monovalent ions. Therefore, the divalent/trivalent ions (assumed to be cations to be specific) accumulate near the metallic electrode more than for the unpolarized electrode and a charge inversion occurs. In such asymmetric electrolytes, this results in a large potential at zero electrode charge. The behavior is reversed for the air/electrolyte interface. This is more pronounced at low reduced temperatures (or, equivalently, at high ionic couplings). The anomalous capacitance behavior of the DL is seen for the unpolarized electrode, where the temperature derivative of the capacitance is positive at low reduced temperatures (characteristic of electrolytes with ions with high ionic couplings or molten salt DLs at room temperatures) while it is negative at high reduced temperatures (characteristic or aqueous solutions of monovalent salts at room temperatures). At least for the states we consider, this anomalous behavior is enhanced for the air/electrolyte interface but vanishes for a metallic electrode. Our Monte Carlo simulations of these phenomena are reported

Colon polyps in patients with short bowel syndrome before and after teduglutide: post hoc analysis of the STEPS study series

Background & aims: Teduglutide promotes intestinal growth and is approved for the treatment of short bowel syndrome and intestinal failure (SBS-IF). Based on the pharmacologic activity and preclinical findings, teduglutide can potentially induce proliferative colonic mucosal changes. The aim of this study is to report the occurrence of colorectal polyps in adult patients with SBS-IF who received teduglutide in clinical studies conducted to date. Methods: A post hoc analysis of the completed Study of Teduglutide Effectiveness in Parenteral Nutrition-Dependent Short Bowel Syndrome Subjects (STEPS) clinical study series (NCT00798967, EudraCT 2008-006193-15; NCT00930644, EudraCT 2009-011679-65; NCT01560403) evaluated electronic case report form data for baseline colonoscopies (performed before treatment) and for surveillance or end-of-study (performed after treatment with teduglutide 0.05 mg/kg/day for 24 and 36 months) post-exposure procedures. Results: In the STEPS studies, 73 patients treated with teduglutide had a baseline colonoscopy. No post-exposure colonoscopy was scheduled in STEPS. In STEPS-2/3, 50 of 65 patients with remnant colon (77%) underwent a protocol-mandated post-exposure colonoscopy. Colon polyps were reported at baseline in 12% (9/73) of patients and post-exposure in 18% (9/50) of patients. Two had polyps both at baseline and post-exposure. On histology, available for 7 patients, 5 had adenomas (1 serrated, 4 tubular) and none had malignancy or high-grade dysplasia. Conclusion: These data support recommendations for colonoscopic screening before teduglutide therapy and subsequent on-therapy colonoscopic surveillance for patients with SBS-IF. Further studies are required to assess the risk of polyp formation in patients with SBS-IF and the most appropriate colon polyp surveillance strategies

The Grizzly, November 10, 1989

Wismer Staff Pleads Innocence: Verdict? • Museum Safe and Sound • Dinner for Visitors • Letters: Get to the Point!; GDI Tired of Greek Rights at U.C.; Pro-Life Prof Speaks for Babies • U.C.\u27s Very Vibrant Voices • Opinion: Global Warming • Promoting Condom Sensehttps://digitalcommons.ursinus.edu/grizzlynews/1246/thumbnail.jp

On the hyperinvariant subspaces for isometries

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46259/1/209_2005_Article_BF01110017.pd

Identifying Vessel Branching from Fluid Stresses on Microscopic Robots

Objects moving in fluids experience patterns of stress on their surfaces determined by the geometry of nearby boundaries. Flows at low Reynolds number, as occur in microscopic vessels such as capillaries in biological tissues, have relatively simple relations between stresses and nearby vessel geometry. Using these relations, this paper shows how a microscopic robot moving with such flows can use changes in stress on its surface to identify when it encounters vessel branches.Comment: Version 2 has minor clarification

Sustainable development in higher education in Europe. Good practices compendium

Higher Education Institutions among all educational structures are vested with significant responsibility in implementing the concept of Sustainable Development, both to incorporate this concept within their activities (teaching, research, operations) and to widespread Sustainable Development in the society and business world. The report is the final product of Work Package 3 (WP3) entitled “Identifying sustainable and user-friendly Good Practices”. The objective is the identification and diffusion of Good Practices concerned with Education for Sustainable Development (ESD) in Higher Education Institutions. The topic is analysed in a broader sense, on one side considering the characterisation of the political and institutional framework, and on the other side describing formal and informal learning experiences in Higher Education Institutions. 36 Good Practices are discussed and presented in systematic forms, that have been categorized according to the following topics related to the implementation of Sustainable Development education: policies, institutional activities, teaching and practical experiences. The Good Practices represent a wide range of situations concerning different European countries, institutions, typologies of the initiatives, geographical levels of implementation. However in this diversity some characterizing aspects emerge: the holistic and interdisciplinary approaches to ESD, the attention in achieving tangible results, the involvement of local communities and the bottom-up approaches, the importance of partnerships and networking, the capacity building, the innovation of the initiatives, and the attention in building a framework favorable to Sustainable Development. The Good Practices were selected in a wider range of case studies, emerging from a “State of the Art” analysis in the field of Sustainable Development in the University Studies of Life Sciences in Europe, carried out within the ISLE project, and from the research of the project partners. The selection has been done in accordance with the criteria of transferability, pertinence, capacity building, user friendless, innovation, networking capacity and interdisciplinarity.peer-reviewe

First results from the ionospheric radio occultations of Saturn by the Cassini spacecraft

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/94835/1/jgra18257.pd