cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Power management for wireless sensor networks based on energy budgets
Creators: name: Renner, Christian
name: Unterschütz, Stefan
name: Turau, Volker
Publisher: name: TUHH Universitätsbibliothek
Year: 2010
Subjects: subject: wireless sensor network
subject: power management
subject: energy budget
subject: BoX-MAC
subject: Drahtloses Sensorsystem

description: This paper proposes and assesses analytical tools for large-scale monitoring applications with wireless sensor networks powered by energy-harvesting supplies. We introduce the concept of an energy budget, the amount of energy available to a sensor node for a given period of time. The presented tools can be utilized to realize distributed algorithms that determine a schedule to perform the monitoring task and the inherent communication. Scheduling is based on the energy budgets of the nodes or on latency requirements. In this context, we derive theoretical results for the energy consumption of the individual nodes plus the latency of event-reporting. These results are verified by simulations and a real testbed implementation.
Dissociable involvement of the nucleus accumbens subregions in effort-based decision making
Creators: name: Ghods-Sharifi, Sarvin
Publisher: name: University of British Columbia
Year: 2010

description: Animals routinely engage in cost-benefit analysis, choosing between different courses of actions with potentially greater response costs that may lead to greater rewards. Previous research has shown that the preference to exert more physical effort to obtain a larger magnitude of reward is mediated by a complex neural circuit including the anterior cingulate, basolateral amygdala, and mesoaccumbens dopamine system. Past studies investigating the neural basis of effort-based decision making have utilized a T-maze task whereby rats have had to choose between climbing a barrier in one arm to obtain a high reward (HR), or retrieve a low reward (LR) from an arm with no barrier. Destruction of dopamine terminals in the nucleus accumbens (NAc) has been shown to reduce the preference to work harder to obtain a larger reward. Yet, the role of the different subregions of the NAc on this form of decision making is not very clear. The present study investigated the contributions of the NAc core and shell in effort-based decision making using an automated procedure conducted in an operant chamber. The task consisted of 4 discrete blocks of 10 trials. A response on one lever delivered an LR immediately (2 reward pellets), whereas responding on the other lever delivered an HR (4 pellets) after a fixed ratio of presses, which increased with each block (2, 5, 10, or 20). Inactivation of the NAc core, but not shell, via infusion of GABAA/B agonists muscimol/baclofen (75 ng each) reduced the preference for animals to exert greater effort to obtain the HR. In order to control for the greater delay from initiation of response to delivery of reward in the HR compared to LR condition, we conducted a subsequent experiment that equalized the delay. Inactivation of the core, but not shell reduced the preference for the HR. Therefore the NAc core, but not the shell, is part of a neural circuit that mediates effort-based decision making. Additionally the contributions by the NAc core to this form of decision making are distinct from those involving delay-based decisions.
Failure of the Maxwell relation for the quantification of caloric effects in ferroic materials
Creators: name: Niemann, Robert
name: Heczko, Oleg
name: Schultz, Ludwig
name: Fähler, Sebastian
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Giant caloric effects were reported in elasto-, electro- and magnetocaloric materials near phase transformations. Commonly, their entropy change is indirectly evaluated by a Maxwell relation. We report the fundamental failure of this approach. We analyze exemplarily the Ni-Mn-Ga magnetic shape memory alloy. An applied field results in magnetically induced reorientation of martensitic variants, which form during the phase transformation. This results in a spurious magnetocaloric effect, which only disappears when repeating the measurement a second time. This failure is universal as the vector character of the applied field is not considered in the common scalar evaluation of a Maxwell relation.
description: 8 pages, 4 figures
Prefazione
Creators: name: Campani, Giovanna
name: Di Grigoli, Antonio Raimondo
Publisher: name: Comparative Cultural Studies - European and Latin American Perspectives
Year: 2020

description: Questo numero di «Comparative Cultural Studies», consacrato alla pandemia COVID-19, ha all’origine la sollecitazione da parte del responsabile per le riviste FUP Alessandro Pierno, che, a metà marzo 2020, invitò alcuni direttori ad avviare una riflessione comparata sul fenomeno sanitario e sui suoi aspetti culturali, politici e sociali in diverseprospettive disciplinari. Al momento, marzo 2020, i contorni della pandemia ed il suo possibile divenire erano oscuri – da molteplici punti di vista (le nebbie non si sono peraltro ancora dipanante). Sconosciuto il virus, incerte le cure, inedite le risposte sanitarie e politiche.
description: Comparative Cultural Studies - European and Latin American Perspectives, Vol. 5 No. 10 (2020)
Stratigraphy and paleoecology of an upper Devonian carbonate bank, Saskatchewan River Crossing, Alberta
Creators: name: Dolphin, Dale Robert
Publisher: name: University of Calgary
Year: 1969
Subjects: subject: QE 665 D64 1969
subject: Additional Copy: QE 665 D64 1969G
subject: Geology, Stratigraphic - Devonian
subject: Geology - Alberta
subject: Paleoecology

description: Bibliography: 67-70.
Free Energy and the Generalized Optimality Equations for Sequential Decision Making
Creators: name: Ortega, Pedro A.
name: Braun, Daniel A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Machine Learning (stat.ML)
subject: Artificial Intelligence (cs.AI)
subject: Computer Science and Game Theory (cs.GT)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The free energy functional has recently been proposed as a variational principle for bounded rational decision-making, since it instantiates a natural trade-off between utility gains and information processing costs that can be axiomatically derived. Here we apply the free energy principle to general decision trees that include both adversarial and stochastic environments. We derive generalized sequential optimality equations that not only include the Bellman optimality equations as a limit case, but also lead to well-known decision-rules such as Expectimax, Minimax and Expectiminimax. We show how these decision-rules can be derived from a single free energy principle that assigns a resource parameter to each node in the decision tree. These resource parameters express a concrete computational cost that can be measured as the amount of samples that are needed from the distribution that belongs to each node. The free energy principle therefore provides the normative basis for generalized optimality equations that account for both adversarial and stochastic environments.
description: 10 pages, 2 figures
Petrology of some mottled and laminated Middle Cambrian dolomites from Banff and Yoho National Parks
Creators: name: Harrison, Randolph S.
Publisher: name: University of Calgary
Year: 1969
Subjects: subject: QE 446 H35 1969
subject: Additional Copy: QE 446 H35 1969G GEOLOGY
subject: Petrology - Alberta - Banff National Park
subject: Petrology - British Columbia - Yoho National Park
subject: Dolomite

description: Bibliography: p. 88-91.
Analytic gas orbits in an arbitrary rotating galactic potential using the linear epicyclic approximation
Creators: name: Piñol-Ferrer, N.
name: Lindblad, P. O.
name: Fathi, K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A code, Epic5, has been developed which computes, in the two-dimensional case, the initially circular orbits of guiding centra in an arbitrary axisymmetric potential with an arbitrary, weak perturbing potential in solid body rotation. This perturbing potential is given by its Fourier expansion. The analytic solution solves the linear epicyclic approximation of the equations of motion. To simulate the motion of interstellar matter and to damp the Lindblad resonances, we have in these equations introduced a friction which is proportional to the deviation from circular velocity. The corotation resonance is also damped by a special parameter. The program produces, in just a few seconds, orbital and density maps, as well as line of sight velocity maps for a chosen orientation of the galaxy. We test Epic5 by comparing its results with previous simulations and observations from the literature, which gives satisfactory agreement. The aim is that this program should be a useful complement to elaborate numerical simulations. Particularly so are its abilities to quickly explore the parameter space, to construct artificial galaxies, and to isolate various single agents important for developing structure of interstellar matter in disc galaxies.
description: 16 pages, 16 figures; Accepted for publication in MNRAS
Mining Mass Spectrometry Quality Control Data
Creators: name: Bittremieux, Wout
name: Kelchtermans, Pieter
name: Valkenborg, Dirk
name: Martens, Lennart
name: Goethals, Bart
name: Laukens, Kris
Publisher: name: Zenodo
Year: 2014

description: Mining mass spectrometry quality control data

Introduction

Because of the inherent complexity of mass spectrometry, the results of an experiment can be subject to a large variability. As a means of quality control, recently several qualitative metrics have been defined. These quality control metrics can be used individually to assess the quality of a single experiment. In addition, by making use of data mining and machine learning approaches, several advanced analyses can be performed between different mass spectrometry runs as well.

Methods

In order to provide a pervasive and standardized means to report quality control information for mass spectrometry experiments, the qcML standard has been developed. The qcML standard supports an automated quality control pipeline by providing a set of useful metrics that can be calculated on the acquired data. In addition, it provides a standard format for the exchange of these metrics; both an XML-based qcML file format and a qcDB relational database structure have been defined.

To work with qcML data the open-source Java library jqcML has been developed. Firstly, jqcML provides a complete object model to represent qcML data. Secondly, jqcML provides the ability to read, write and work in a uniform manner with qcML data from different sources.

Preliminary Data or Plenary Speakers Abstract

A variety of quality control metrics have been calculated using OpenMS and QuaMeter. Subsequently, jqcML was used to combine and merge the distinct metrics generated by the different tools. In addition, using jqcML the multiple qcML files could easily be converted to a qcDB relational database for efficient storage of large amounts of data and the subsequent analysis.

Using this data it is possible to perform several analyses between different mass spectrometry runs. Firstly, the behavior of each quality parameter can be evaluated individually. However, more advanced analyses are possible as well. For example, using pattern mining techniques, frequently co-occurring patterns can be found, from which relationships between various parameters can be deduced. Furthermore, outlier detection based on all parameters simultaneously can be performed using specific subspace clustering techniques.

An important requirement for the maturation of mass spectrometry-based proteomics is the dissemination of quality control information alongside published datasets. By adapting and developing specific data mining and machine learning techniques, it will be possible to harness the full power of this new information.

Novel Aspect

The qcML standard will be introduced, along with its Java library jqcML. Additionally, possible data mining techniques will be illustrated.
Stabilization of one-dimensional solitons against the critical collapse by quintic nonlinear lattices
Creators: name: Zeng, Jianhua
name: Malomed, Boris A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It has been recently discovered that stabilization of two-dimensional (2D) solitons against the critical collapse in media with the cubic nonlinearity by means of nonlinear lattices (NLs) is a challenging problem. We address the 1D version of the problem, i.e., the nonlinear-Schrödinger equation (NLSE) with the quintic or cubic-quintic (CQ) terms, the coefficient in front of which is periodically modulated in space. The models may be realized in optics and Bose-Einstein condensates (BECs). Stability diagrams for the solitons are produced by means of numerical methods and analytical approximations. It is found that the sinusoidal NL stabilzes solitons supported by the quintic-only nonlinearity in a narrow stripe in the respective parameter plane, on the contrary to the case of the cubic nonlinearity in 2D, where the stabilization of solitons by smooth spatial modulations is not possible at all. The stability region is much broader in the 1D CQ model, where higher-order solitons may be stable too.
description: 8 pages,9 figures. Physical Review A (in press)
General masters in parallel condensation of eigenvalue problems
Creators: name: Mackens, Wolfgang
name: Voß, Heinrich
Publisher: name: TUHH Universitätsbibliothek
Year: 1998
Subjects: subject: eigenvalue problem
subject: condensation
subject: parallel method
classificationCode: 510
subject: Mathematik
subject: Eigenwertproblem
subject: Kondensation
classificationCode: 65F15
subject: Eigenvalues, eigenvectors

description: In the dynamic analysis of structures using finite element methods very often prohibitively many degrees of freedom are required to model the structure sufficiently accurate. Condensation methods are often used to reduce the number of unknowns to manageable size. Substructuring and choosing the master variables as the degrees of freedom on the interfaces of the substructures yields data structures which are well suited to be implemented on parallel computers. In this paper we discuss the use of additional non nodal masters in substructuring. The data structure is preserved such that the condensed problem can be determined substructurewise.
Zigzag graphene nanoribbon edge reconstruction with Stone-Wales defects
Creators: name: Rodrigues, J. N. B.
name: Gonçalves, P. A. D.
name: Rodrigues, N. F. G.
name: Ribeiro, R. M.
name: Santos, J. M. B. Lopes dos
name: Peres, N. M. R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this article, we study zigzag graphene nanoribbons with edges reconstructed with Stone-Wales defects, by means of an empirical (first-neighbor) tight-binding method, with parameters determined by ab-initio calculations of very narrow ribbons. We explore the characteristics of the electronic band structure with a focus on the nature of edge states. Edge reconstruction allows the appearance of a new type of edge states. They are dispersive, with non-zero amplitudes in both sub-lattices; furthermore, the amplitudes have two components that decrease with different decay lengths with the distance from the edge; at the Dirac points one of these lengths diverges, whereas the other remains finite, of the order of the lattice parameter. We trace this curious effect to the doubling of the unit cell along the edge, brought about by the edge reconstruction. In the presence of a magnetic field, the zero-energy Landau level is no longer degenerate with edge states as in the case of pristine zigzag ribbon.
description: 15 pages
Prefacio
Creators: name: Campani, Giovanna
name: Di Grigoli, Antonio Raimondo
Publisher: name: Comparative Cultural Studies - European and Latin American Perspectives
Year: 2020

description: Este número de la revista «Comparative Cultural Studies: European and Latin American Perspectives», dedicado a la pandemia COVID-19, tiene en el origien la solicitación por parte del responsabile de las revistas FUP - Alessandro Pierno, el cual, a la mitad del mes de marzo de 2020, invitó a algunos directores a reflexionar de manera comparada sobre el fenómeno sanitario y sus aspectos culturales, políticos y sociales desde varias perspectivas disciplinarias. En ese momento, en el mes de marzo de 2020, la pandemia y su posible futuro eran oscuros desde varios puntos de vista (todavía las nieblas no se han aclarado). Desconocido el virus, vacilantes los tratamientos, inéditas las respuestas sanitarias y políticas.
description: Comparative Cultural Studies - European and Latin American Perspectives, Vol. 5 No. 10 (2020)
A Meta-Regression Model Describing the Effects of Essential Oils on Escherichia coli Inactivation in Cheese
Creators: name: Silva, B.N.
name: Cadavez, V.A.P.
name: Teixeira, J.A:
name: Gonzales-Barron, U.
Publisher: name: Zenodo
Year: 2020

description: Presented as Poster; and in Book of Abstracts of the International Association of Food Protection 2020 Annual Meeting. Virtual Meeting (26-28 October 2020) (Page 185).
Differential compaction over a Leduc reef, Wizard Lake area, Alberta
Creators: name: Labute, Gary James
Publisher: name: University of Calgary
Year: 1969
Subjects: subject: QE 651 L33 1969
subject: Additional Copy: QE 186 L32 1968G GEOLOGY
subject: Geology, Structural
subject: Geology, Stratigraphic
subject: Geology - Alberta - Wizard Lake

description: Bibliography: p. 59-61.
Formaldehyde Densitometry of Galactic Star-Forming Regions Using the H2CO 3(12)-3(13) and 4(13)-4(14) Transitions
Creators: name: McCauley, Patrick I.
name: Mangum, Jeffrey G.
name: Wootten, Alwyn
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present Green Bank Telescope (GBT) observations of the 3(12)-3(13) (29 GHz) and 4(13)-4(14) (48 GHz) transitions of the H2CO molecule toward a sample of 23 well-studied star-forming regions. Analysis of the relative intensities of these transitions can be used to reliably measure the densities of molecular cores. Adopting kinetic temperatures from the literature, we have employed a Large Velocity Gradient (LVG) model to derive the average hydrogen number density [n(H2)] within a 16 arcsecond beam toward each source. Densities in the range of 10^{5.5}--10^{6.5} cm^{-3} and ortho-formaldehyde column densities per unit line width between 10^{13.5} and 10^{14.5} cm^{-2} (km s^{-1})^{-1} are found for most objects, in general agreement with existing measurements. A detailed analysis of the advantages and limitations to this densitometry technique is also presented. We find that H2CO 3(12)-3(13)/4(13)-4(14) densitometry proves to be best suited to objects with T_K >~ 100 K, above which the H2CO LVG models become relatively independent of kinetic temperature. This study represents the first detection of these H2CO K-doublet transitions in all but one object in our sample. The ease with which these transitions were detected, coupled with their unique sensitivity to spatial density, make them excellent monitors of density in molecular clouds for future experiments. We also report the detection of the 9_2--8_1 A^- (29 GHz) transition of CH3OH toward 6 sources.
description: 17 pages; 6 figures; Accepted by ApJ
Belloy formation (Permian), Peace River Area, northeast British Columbia, and northwest Alberta
Creators: name: Naqvi, Ikram Hussain
Publisher: name: University of Calgary
Year: 1969
Subjects: subject: QE 674 N34 1969
subject: Additional Copy: QE 674 N34 1969G
subject: Geology, Stratigraphic - Permian
subject: Geology - Alberta
subject: Geology - British Columbia

description: Bibliography: p. 57-60.
Detection of picosecond magnetization dynamics of 50 nm magnetic dots down to the single dot regime
Creators: name: Rana, Bivas
name: Kumar, Dheeraj
name: Barman, Saswati
name: Pal, Semanti
name: Fukuma, Yasuhiro
name: Otani, YoshiChika
name: Barman, Anjan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report an all-optical time-domain detection of picosecond magnetization dynamics of arrays of 50 nm Ni80Fe20 (permalloy) dots down to the single nanodot regime. In the single nanodot regime the dynamics reveals one dominant resonant mode corresponding to the edge mode of the 50 nm dot with slightly higher damping than that of the unpatterned thin film. With the increase in areal density of the array both the precession frequency and damping increases significantly due to the increase in magnetostatic interactions between the nanodots and a mode splitting and sudden jump in apparent damping are observed at an edge-to-edge separation of 50 nm.
description: 16 pages, 5 figures; ACS Nano, ASAP (2011)
A Funnier "Monk": A Multimodal Approach to Transnational TV Series Adaptations
Creators: name: Er, Ibrahim
Publisher: name: Dipartimento delle Arti - Alma Mater Studiorum - Università di Bologna
Year: 2016
Subjects: transnational television; format adaptations; multimodal analysis; localization; Monk; Galip Derviş

description: In their book Reading Television (1978: 64-5), John Fiske and John Hartley define television as a medium that provides the members of a particular community with a “confirming, reinforcing version of themselves.” Although the introduction of the unfamiliar and innovative via televisual productions is a business imperative as well as a cultural necessity today, television continues to function as a mirror of its receiving society, and provide its viewers with culturally appropriate content through its various semiotic modes of communication situated within the visual, verbal, and sound tracks. Televisual productions, in this sense, can be viewed as one of the most salient multimodal texts through which our everyday politics are continuously materialized, fictionalized, and rendered into an entertaining popular language that shapes our everyday perceptions and expectations. Transnational format adaptations, in particular, stand out as ample content-rich texts in which the processes of localization and appropriation, realized through individual semiotic choices made by producers, manifest themselves. It is the goal of this paper to trace back such semiotic choices made during the re-production phase of transnational format adaptations, and reveal sociocultural and political interventions in meaning making at the time, through a multimodal analysis of an American comedy crime series, Monk, and its Turkish adaptation, Galip Derviş.
description: Series - International Journal of TV Serial Narratives, Vol 2, No 1 (2016)
Ghost imaging lidar via sparsity constraints
Creators: name: Zhao, Chengqiang
name: Gong, Wenlin
name: Chen, Mingliang
name: Li, Enrong
name: Wang, Hui
name: Xu, Wendong
name: Han, Shensheng
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: For remote sensing, high-resolution imaging techniques are helpful to catch more characteristic information of the target. We extend pseudo-thermal light ghost imaging to the area of remote imaging and propose a ghost imaging lidar system. For the first time, we demonstrate experimentally that the real-space image of a target at about 1.0 km range with 20 mm resolution is achieved by ghost imaging via sparsity constraints (GISC) technique. The characters of GISC technique compared to the existing lidar systems are also discussed.
description: 4pages, 3figures
Depositional environments of the Upper Cretaceous Bearpaw-Edmonton transition zone, Drumheller `Badlands', Alberta
Creators: name: Shepheard, W. W.
Publisher: name: University of Calgary
Year: 1969
Subjects: subject: QE 688 S54 1969
subject: Additional Copy: QE 688 S54 1969G GEOLOGY
subject: Geology, Stratigraphic - Cretaceous
subject: Geology - Alberta

description: Bibliography: p. 51-55.
An insight into Silicon wafer Grades
Creators: name: Sharma, Rishabh
name: Sharma, Shivam
Publisher: name: Zenodo
Year: 2020
Subjects: Silicon wafers, Prime grade Si wafer, Dummy Grade Si wafers, Test Grade Silicon wafers

description: We all know, silicon wafers are available in various sizes and specifications. Not only this, Silicon wafers are also available in different grades which decides the quality of the wafer, which is an important parameter to be considered in semiconductor device fabrication and research & development. In this article, we want to give brief insight into different grades of Silicon wafer available in market and their applications.
From "Downton Abbey" to "Mad Men": TV series as the privileged format for transition eras
Creators: name: Maillos, Marie
Publisher: name: Dipartimento delle Arti - Alma Mater Studiorum - Università di Bologna
Year: 2016
Subjects: Transition eras; Downton Abbey; Mad Men; period drama; costume drama

description: On each side of the Atlantic, the Downton Abbey and Mad Men shows have contributed to the transformation of the period drama genre on television: instead of being set in a single precise era, they take place over periods of historical transition, genuine intervals that are full of contrasts and confrontations and even propel the narrative forward. This new approach to time periods results as much from the TV series format as from its mass medium nature: on the one hand, these shows use the apparent invariability required by the serial form to reveal by contrast the transition at work and provide the narrative with the necessary conflict; on the other hand, through their depictions of transitional eras, they offer a commentary on our contemporary period, a characteristic device of television series. Therefore, both shows, notwithstanding their differences in themes, locations and craftmanship, play a part in making the transition period drama become a serial genre in its own right.
description: Series - International Journal of TV Serial Narratives, Vol 2, No 1 (2016)
Lincoln's political techniques 1832-1860
Creators: name: Palmer, John Alden
Publisher: name: University of Calgary
Year: 1967
Subjects: subject: E 457.2 P34 1967
subject: Lincoln, Abraham, Pres. U.S., 1809-1865
subject: United States - Politics and government - 1815-1861

description: Bibliography: p. 236-241.
Differentiation of six herbal extracts using principal component analysis
Creators: name: Silva, B.N.
name: Cadavez, V.
name: Ferreira-Santos, P.
name: Alves, M.A.
name: Ferreira, I.C.F.R.
name: Barros, L.
name: Teixeira, J.A.
name: Gonzales-Barron, U.
Publisher: name: Zenodo
Year: 2021

description: Presented as Oral Presentation; and in Book of Abstracts of the 8th Nordic-Baltic Biometrics Virtual Conference. Helsinki, Finland (7-10 June 2021) (Page 21).
The origin of large molecules in primordial autocatalytic reaction networks
Creators: name: Giri, Varun
name: Jain, Sanjay
Publisher: name: arXiv
Year: 2011
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Biological Physics (physics.bio-ph)
subject: Molecular Networks (q-bio.MN)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Large molecules such as proteins and nucleic acids are crucial for life, yet their primordial origin remains a major puzzle. The production of large molecules, as we know it today, requires good catalysts, and the only good catalysts we know that can accomplish this task consist of large molecules. Thus the origin of large molecules is a chicken and egg problem in chemistry. Here we present a mechanism, based on autocatalytic sets (ACSs), that is a possible solution to this problem. We discuss a mathematical model describing the population dynamics of molecules in a stylized but prebiotically plausible chemistry. Large molecules can be produced in this chemistry by the coalescing of smaller ones, with the smallest molecules, the `food set', being buffered. Some of the reactions can be catalyzed by molecules within the chemistry with varying catalytic strengths. Normally the concentrations of large molecules in such a scenario are very small, diminishing exponentially with their size. ACSs, if present in the catalytic network, can focus the resources of the system into a sparse set of molecules. ACSs can produce a bistability in the population dynamics and, in particular, steady states wherein the ACS molecules dominate the population. However to reach these steady states from initial conditions that contain only the food set typically requires very large catalytic strengths, growing exponentially with the size of the catalyst molecule. We present a solution to this problem by studying `nested ACSs', a structure in which a small ACS is connected to a larger one and reinforces it. We show that when the network contains a cascade of nested ACSs with the catalytic strengths of molecules increasing gradually with their size (e.g., as a power law), a sparse subset of molecules including some very large molecules can come to dominate the system.
description: 49 pages, 17 figures including supporting information
Adaptation of stand-up persona to the narratives of sitcom and dramedy
Creators: name: Salamova, Zemfira
Publisher: name: Dipartimento delle Arti - Alma Mater Studiorum - Università di Bologna
Year: 2016
Subjects: stand-up persona; narrative complexity; sitcom; ambiguous character; dramedy; hybrid genre

description: This article explores the results of the adaptation of Louis C.K.’s stand-up persona to the narrative and genre conditions of the sitcom and the television dramedy. The research belongs to the field of television studies and applies narrative analysis (with a focus on characters) to the TV shows Lucky Louie (2006) and Louie (2010–). The first section of the essay offers an analysis of Louis C.K.’s stand-up performances in order to identify the subject matter of his comedy and the traits of his comic persona. This analysis makes it possible to define the influence of his television projects on the transformation of the original comic character. Unlike the sitcom, dramedy favors genre and narrative experiments and features an ambiguous yet relatable protagonist. This character provides a wider range of opportunities to reinforce the original message about everyday life conveyed in Louis C.K.’s stand-up comedy.
description: Series - International Journal of TV Serial Narratives, Vol 2, No 1 (2016)
Re-evaluation of the third Chartist movement
Creators: name: Aizenman, Rebecca
Publisher: name: University of Calgary
Year: 1968
Subjects: subject: HD 8396 A39 1968
subject: Chartism
subject: Great Britain - Social conditions
subject: Labor and laboring classes - Great Britain - History
subject: France - History - February Revolution, 1848

description: Bibliography: p. 362-391.
A Canadian at the Court of Queen Victoria: the High Commissionership, 1880-1895
Creators: name: Robinson, John M.
Publisher: name: University of Calgary
Year: 1967
Subjects: subject: F 5079 R62 1967
subject: Canada - History - 1867-1914
subject: Galt, Alexander Tilloch, Sir, 1817-1893
subject: Tupper, Charles, Sir, Bart., 1821-1915
subject: Canada. Office of High Commissioner, London

description: Bibliography: p. 222-229.
title: Exploring deep-water WWII battlefields in the Pacific using emerging technologies, Cruise Report, April 24 – May 14, 2023
title: Cruise Report: NOAA Ocean Exploration NOFO NA22OAR0110662-T1-01, Exploring deep-water WWII battlefields in the Pacific using emerging technologies
Creators: name: McKinnon, Jennifer F.
Publisher: name: Ships of Discovery
Year: 2023

description: The project was conducted from the mean low water line at the fringing reef offshore to a 50-meter (164 ft) contour in areas that can be safely navigated with a motor vessel and are within the existing NOAA bathymetric survey areas.
Horace Greeley's peace efforts: 1860-1864
Creators: name: Norman, Jane Margaret
Publisher: name: University of Calgary
Year: 1968
Subjects: subject: E 415.9 G8 N65 1968
subject: Greeley, Horace, 1811-1872
subject: United States - History - Civil War
subject: Lincoln, Abraham, Pres. U.S., 1809-1865

description: Bibliography: p. 228-241.
Muon g-2 and lepton flavor violation in a two Higgs doublets model for the fourth generation
Creators: name: Bar-Shalom, Shaouly
name: Nandi, Soumitra
name: Soni, Amarjit
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In the minimal Standard Model (SM) with four generations (the so called SM4) and in "standard" two Higgs doublets model (2HDM) setups, e.g., the type II 2HDM with four fermion generations, the contribution of the 4th family heavy leptons to the muon magnetic moment is suppressed and cannot accommodate the measured $ \sim 3 σ$ access with respect to the SM prediction. We show that in a 2HDM for the 4th generation (the 4G2HDM), which we view as a low energy effective theory for dynamical electroweak symmetry breaking, with one of the Higgs doublets coupling only to the 4th family leptons and quarks (thus effectively addressing their large masses), the loop exchanges of the heavy 4th generation neutrino can account for the measured value of the muon anomalous magnetic moment. We also discuss the sensitivity of the lepton flavor violating decays $μ\to e γ$ and $τ\to μγ$ and of the decay $B_s \to μμ$ to the new couplings which control the muon g-2 in our model.
description: v1: 13 pages, 11 figures
Protestantism in Bolivia to 1952
Creators: name: Phillips, David Blagdon
Publisher: name: University of Calgary
Year: 1968
Subjects: subject: BX 4836 B6 P5 1968 Microfilm
subject: Additional Copy: BX 4836 B6 P5 1968
subject: Protestants - Bolivia
subject: Bolivia - Religion

description: Bibliography: p. 210-225.
Is reduced-density-matrix functional theory a suitable vehicle to import explicit correlations into density-functional calculations?
Creators: name: Bloechl, Peter E.
name: Walther, Christian F. J.
name: Pruschke, Thomas
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A variational formulation for the calculation of interacting fermion systems based on the density-matrix functional theory is presented. Our formalism provides for a natural integration of explicit many-particle effects into standard density-functional-theory based calculations and it avoids ambiguities of double-counting terms inherent to other approaches. Like the dynamical mean-field theory, we employ a local approximation for explicit correlations. Aiming at the ground state only, trade some of the complexity of Green's function based many-particle methods against efficiency. Using short Hubbard chains as test systems we demonstrate that the method captures ground state properties, such as left-right-correlation, beyond those accessible by mean-field theories.
description: 13 pages, 8 figures
Service Animals In Higher Education: A Legal And Qualitative Exploration On The Impact Of Legislation And Policy
Creators: name: McCombs, Ryan G
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Education policy

description: There is a deficiency in scholarly research on higher education service animal policy that has created definitive gaps in how disability service office (DSO) directors approach policy development and how higher education institutions (HEIs) ensure access for service animal handlers. Through a three-paper model, this dissertation addressed the intersection between federal and state civil rights legislation and the leadership qualities needed in developing higher education service animal policies. The first academic law review paper, titled “Service Animals in the Higher Education Environment: How the Law Guides Institutions in Supporting Disabled Student Handlers” laid a foundation for higher education service animal policy through a review of the Americans with Disabilities Act of 1990, Section 504 of the Rehabilitation Act of 1973, and the Fair Housing Act of 1968, which is federal civil rights legislation that grants protections and access for students with disabilities using service animals in higher education. The second academic law review paper, titled “State Legislation Regarding Service Animals: Informing Big Ten Higher Education Disability Policy” provided a comprehensive overview of six Midwest state’s service animal legislation and the legal application to higher education policy. The third paper is a qualitative research study, titled “A Big Ten Leadership Approach to Service Animal Policy Development in Higher Education” that explored how Big Ten Academic Alliance HEI DSO directors lead when developing institutional policy related to service animals.
Lidocaine inhibition of cloned hyperpolarization-activated cucline nucleotide-modulated (HCN) channels
Creators: name: Yip, Raymond Hon Leung
Publisher: name: University of British Columbia
Year: 2010

description: Hyperpolarization-activated Cyclic Nucleotide-modulated (HCN) channels underlie the hyperpolarization-activated or "funny" current (If or Ih), which is important in regulating excitability in the neurons of the central and peripheral nervous Systems and in the conduction tissue of the heart. There are four mammalian isoforms of HCN channels (HCN1-4), each exhibiting different activation and deactivation kinetics. Lidocaine, a local anesthetic and antiarrhythmic drug, has been shown to inhibit HCN-mediated currents in the rabbit sinoatrial (SA) node, which expresses various HCN isoforms. It also inhibits Ih in rat small DRG neurons. Lidocaine has been shown to block Na⁺ channels by interacting with the aromatic side chain of a phenylalanine residue in the region lining the channel pore. With the exception of a recent study on rabbit HCN4, this is the first study examining lidocaine inhibition on cloned HCN channels. I hypothesize that lidocaine, in micromolar concentrations, inhibits HCN1 channels from the intracellular side by interacting with amino acid residues lining the channel pore. Lidocaine, at concentrations ranging from 50 to 3200 μM, inhibited mouse HCN1 channels expressed in Chinese hamster ovary (CHO) cells with an IC₅₀ of 669 ± 320 μM. The onset of lidocaine action is fast (~6 seconds) and concentration-dependent with maximum inhibition occurring at approximately 20 seconds, and inhibition is partially or completely reversible. The fact that currents does not return completely may be attributed to a phenomenon called current rundown, or to incomplete washout of lidocaine. Extracellular application of the permanently charged derivative of lidocaine, QX-314, did not inhibit the channel, which suggests that lidocaine inhibition, in its charged form, occurs from the intracellular side. A point mutation at the phenylalanine residue does not remove lidocaine inhibition, indicating that this residue is not responsible for interaction with lidocaine. These results support the hypothesis that lidocaine inhibits HCNl from the intracellular side, with molecular mechanisms of inhibition yet to be determined.
Physiotherapist beliefs and perspectives on virtual reality supported rehabilitation for the management of musculoskeletal shoulder pain: A focus group study
Creators: name: Brady, Niamh
name: Dejaco, Beate
name: Lewis, Jeremy
name: Mc Creesh, Karen
name: G. McVeigh, Joseph
Publisher: name: University of Limerick
Year: 2023
Subjects: subject: Health sciences
subject: FOS: Health sciences

description: Background Virtual Reality (VR) is an immersive computer-generated environment that provides a multi-sensory experience for the user. Modern technology allows the user to explore and interact with the virtual environment, offering opportunities for rehabilitation. The use of immersive VR in the management of musculoskeletal shoulder pain is relatively new and research is equired to demonstrate its feasibility and effectiveness in this field. Aim The aims of this study were, firstly, to explore physiotherapists’ beliefs and perspectives of immersive VR as a platform for rehabilitation in patients with musculoskeletal shoulder pain, secondly, to identify potential barriers and facilitators to using VR in a musculoskeletal setting and thirdly, to gain insight from clinicians that would inform the development of a VR intervention for the rehabilitation of musculoskeletal shoulder pain. Methods This study used qualitative descriptive design methodology. A series of three focus group interviews were carried out, via Microsoft Teams. Physiotherapists received an Oculus Quest™ headset to use at home prior to the focus group interviews. A six-phase process of reflexive thematic analysis was carried out to identify themes within the data. Atlas Ti Qualitative Data Analysis software was used to facilitate thematic analysis. Results Five themes were identified within the data. They reflected physiotherapists beliefs that VR provides novel opportunities for shoulder rehabilitation and may offer new avenues for managing movement-related fear and improving concordance with rehabilitation. However, barriers related to safety and practical considerations associated with using VR were also identified in the final themes. Conclusion These findings provide valuable insight into clinician acceptability of immersive VR as a plat-form for rehabilitation and the need for further research to answer the questions posed by physiotherapists in the current study. This research will contribute to human-centered design of VR-supported interventions for managing musculoskeletal shoulder pain.
Kinetic formulation and global existence for the Hall-Magneto-hydrodynamics system
Creators: name: Arichetogaray, Marion
name: Degond, Pierre
name: Frouvelle, Amic
name: Liu, Jian-Guo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: This paper deals with the derivation and analysis of the the Hall Magneto-Hydrodynamic equations. We first provide a derivation of this system from a two-fluids Euler-Maxwell system for electrons and ions, through a set of scaling limits. We also propose a kinetic formulation for the Hall-MHD equations which contains as fluid closure different variants of the Hall-MHD model. Then, we prove the existence of global weak solutions for the incompressible viscous resistive Hall-MHD model. We use the particular structure of the Hall term which has zero contribution to the energy identity. Finally, we discuss particular solutions in the form of axisymmetric purely swirling magnetic fields and propose some regularization of the Hall equation.
Ensuring Fair Play From the Law: An examination of the deconstruction of President Johnson's Legal Services through the Legal Aid Foundation of Chicago
Creators: name: Tingstad, Cori
Publisher: name: University of Chicago
Year: 2018
Subjects: subject: Legal Aid Foundation of Chicago
subject: criminal justice system
subject: oral history

description: I study the Legal Aid Foundation of Chicago through oral history style interviews to demonstrate that in order to live up to the American promise of equal access to the law, we must fund a legal services program that is permitted to and capable of suing government bodies.
Acousto-optic laser optical feedback imaging
Creators: name: Jacquin, Olivier
name: Glastre, Wilfried
name: Lacot, Eric
name: Hugon, Olivier
name: De Chatellus, Hugues Guillet
name: François, Ramaz
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a photon noise and diffraction limited imaging method combining the imaging laser and ultrasonic waves. The laser optical feedback imaging (LOFI) technique is an ultrasensitive imaging method for imaging objects through or embedded within a scattering medium. However, LOFI performances are dramatically limited by parasitic optical feedback occurring in the experimental setup. In this work, we have tagged the ballistic photons by an acousto-optic effect in order to filter the parasitic feedback effect and to reach the theoretical and ultimate sensitivity of the LOFI technique. We present the principle and the experimental setup of the acousto-optic laser optical feedback imaging (AO-LOFI) technique, and we demonstrate the suppression of the parasitic feedback.
Meta-analysis on the effect of biopreservatives on Staphylococcus aureus inactivation in cheese
Creators: name: Silva, B.N.
name: Cadavez, V.A.P.
name: Teixeira, J.A.
name: Gonzales-Barron, U.
Publisher: name: Zenodo
Year: 2020

description: Presented as Oral Presentation; and in Book of Abstracts of the 71st Annual Meeting of the European Federation of Animal Science. Virtual, Meeting (1-4 December) (Page 476).
Serial Contradictions. The Italian Debate on Tv Series
Creators: name: Cardini, Daniela
Publisher: name: Dipartimento delle Arti - Alma Mater Studiorum - Università di Bologna
Year: 2016
Subjects: tv drama; complex tv; cinematic tv; tv series; tv audiences; television studies

description: In the last decade the academic debate on television seriality has become lively and often quite animated, in the US as well as in Italy. The traditional hierarchic relation between cinema and television is clearly represented by the form of the most recent tv drama, whose boundaries are more and more difficult to locate. The main questions at stake seem to be the so-called “cinematic television” (Mills, 2013; Jaramillo, 2013), the umbrella definition of “quality tv” (McCabe and Akass, 2007) and its relation with the broadest concept of “complex tv” (Mittell, 2009, 2015). The essay will take into consideration these oxymorons, which are deeply rooted in the Italian tv series debate, with the aim of considering both their risks and their opportunities. A great variety of texts are grouped under the “tv series” label, but they are very different as far as content, production values and audience reactions are concerned. The academic discourse, however, only recently has tried to identify the differences between longstanding mainstream shows (such as, for instance, Grey’s Anatomy or CSI) and some more recent, and supposedly “cinematic” series like True Detective or Fargo. Together with the analysis of the oxymoric nature of recent television seriality, the essay will explore the need to historicising what is proving to be one of the most dense and fruitful domains of recent television studies.
description: Series - International Journal of TV Serial Narratives, Vol 2, No 1 (2016)