cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Simulating the Coronal Evolution of Bipolar Active Regions to Investigate the Formation of Flux Ropes
Creators: name: Yardley, Stephanie L.
name: Mackay, Duncan H.
name: Green, Lucie M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The coronal magnetic field evolution of 20 bipolar active regions (ARs) is simulated from their emergence to decay using the time-dependent nonlinear force-free field method of Mackay et al. A time sequence of cleaned photospheric line-of-sight magnetograms, that covers the entire evolution of each AR, is used to drive the simulation. A comparison of the simulated coronal magnetic field with the 171 and 193 A observations obtained by the Solar Dynamics Observatory (SDO)/ Atmospheric Imaging Assembly (AIA), is made for each AR by manual inspection. The results show that it is possible to reproduce the evolution of the main coronal features such as small- and large-scale coronal loops, filaments and sheared structures for 80% of the ARs. Varying the boundary and initial conditions, along with the addition of physical effects such as Ohmic diffusion, hyperdiffusion and a horizontal magnetic field injection at the photosphere, improves the match between the observations and simulated coronal evolution by 20%. The simulations were able to reproduce the build-up to eruption for 50% of the observed eruptions associated with the ARs. The mean unsigned time difference between the eruptions occurring in the observations compared to the time of eruption onset in the simulations was found to be ~5 hrs. The simulations were particularly successful in capturing the build-up to eruption for all four eruptions that originated from the internal polarity inversion line of the ARs. The technique was less successful in reproducing the onset of eruptions that originated from the periphery of ARs and large-scale coronal structures. For these cases global, rather than local, nonlinear force-free field models must be used. While the technique has shown some success, eruptions that occur in quick succession are difficult to reproduce by this method and future iterations of the model need to address this.
description: 32 pages, 8 figures, accepted for publication
A Comparison of Sexual Attraction, Orientation, and Activity in Predicting Drinking Behaviors among Lesbian and Bisexual Females in the United States
Creators: name: Lawler, Ashlee Rose
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: Attraction
Binge Drinking
Bisexuals
Lesbians
Oral Sex Activity
Orientation

description: your words Lesbian and bisexual women's attraction, orientation, and activity were examined in an effort to understand how sexualities are developed. Also, attraction, orientation, and activity were measured in relation to the binge drinking behaviors. Hypothesis (1), the three variables attraction, orientation, and activity are similar, but reveal distinctions. Hypothesis (2), compared to heterosexual women, lesbian and bisexual women will have more unhealthy drinking behaviors, especially bisexual women due to sexual minority stress. The National Survey of Family Growth (NSFG 2006-2010) public female and ACASI female data files were used. Results indicated that attraction, orientation, and activity are all separate factors that contribute to the development of a woman's sexuality. It was found that lesbian and bisexual women, especially bisexual women are more likely to engage in binge drinking behaviors compared to heterosexual women. In addition, attraction and activity appear to be slightly greater predictors of binge drinking behaviors.
The active lives of stars: a complete description of rotation and XUV evolution of F, G, K, and M dwarfs
Creators: name: Johnstone, Colin P.
name: Bartel, Michael
name: Güdel, Manuel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Aims. We study the evolution of rotation and high energy X-ray, extreme ultraviolet (EUV), and Ly-alpha emission for F, G, K, and M dwarfs, with masses between 0.1 and 1.2 Msun, and provide our evolutionary code and a freely available set of evolutionary tracks for use in planetary atmosphere studies. Methods. We develop a physical rotational evolution model constrained by observed rotation distributions in young stellar clusters. Using rotation, X-ray, EUV, and Ly-alpha measurements, we derive empirical relations for the dependences of high energy emission on stellar parameters. Our description of X-ray evolution is validated using measurements of X-ray distributions in young clusters. Results. A star's X-ray, EUV, and Ly-alpha evolution is determined by its mass and initial rotation rate, with initial rotation being less important for lower mass stars. At all ages, solar mass stars are significantly more X-ray luminous than lower mass stars and stars that are born as rapid rotators remain highly active longer than those born as slow rotators. At all evolutionary stages, habitable zone planets receive higher X-ray and EUV fluxes when orbiting lower mass stars due to their longer evolutionary timescales. The rates of flares follow similar evolutionary trends with higher mass stars flaring more often than lower mass stars at all ages, though habitable zone planets are likely influenced by flares more when orbiting lower mass stars. Conclusions. Our results show that single decay-laws are insufficient to describe stellar activity evolution and highlight the need for a more comprehensive description based on the evolution of rotation, including also the effects of short-term variability. Planets at similar orbital distances from their host stars receive significantly more X-ray and EUV energy over their lifetimes when orbiting higher mass stars. (abstract incomplete)
description: Accepted for publication in A&A
On Projections of Semi-algebraic Sets Defined by Few Quadratic Inequalities
Creators: name: Basu, Saugata
name: Zell, Thierry
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Geometry (math.AG)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 14P10 (Primary) 55T99, 68W30 (Secondary)

description: Let $S \subset \R^{k + m}$ be a compact semi-algebraic set defined by a system of $\ell$ polynomial inequalities of degree at most 2. $ Let $π$ denote the standard projection from $\R^{k + m}$ onto $\R^m$. We prove that for any $q >0$, the sum of the first $q$ Betti numbers of $π(S)$ is bounded by $(k + m)^{O(q\ell)}.$ We also present an algorithm for computing the the first $q$ Betti numbers of $π(S)$, whose complexity is $ (k+m)^{2^{O(q\ell)}}.$ For fixed $q$ and $\ell$, both the bounds are polynomial in $k+m$.
description: 21 pages, 1 figure. Requires diagrams.tex
SYNTHESIS OF 2'-MODIFIED TRICYCLIC NUCLEOSIDES AS ANTI-HCV AGENTS
Creators: name: Tomney, Matthew James
Publisher: name: Maryland Shared Open Access Repository
Year: 2010
Subjects: 2'
HCV
Modified
NS5B
Nucleoside
Synthesis

description: The Hepatitis C virus (HCV) is a blood borne virus currently infecting almost 5 million people in the United States and nearly 200 million people worldwide. HCV is one of the leading causes of long term liver cirrhosis which results in liver transplants, liver failure, and death. Current therapies have exhibited low response rates and toxic side effects, thus there is an urgent need to develop more effective treatments. HCV requires an RNA-dependent RNA-polymerase (RdRp) to replicate, more specifically the NS5B protein. Recent studies have shown modifications to the C-2' position of nucleoside sugars results in potent inhibitory activity against the NS5B protein. Related to this, a tricyclic guanosine analogue from our laboratories has also exhibited moderate HCV inhibition. Thus, combining these leads has focused our efforts on the development of C-2'-modified analogues of the tricyclic guanosine. The synthesis and preliminary studies are described herein.
Experimental robust self-testing of the state generated by a quantum network
Creators: name: Agresti, Iris
name: Polacchi, Beatrice
name: Poderini, Davide
name: Polino, Emanuele
name: Suprano, Alessia
name: Šupić, Ivan
name: Bowles, Joseph
name: Carvacho, Gonzalo
name: Cavalcanti, Daniel
name: Sciarrino, Fabio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Self-testing is a method of quantum state and measurement estimation that does not rely on assumptions about the inner working of the used devices. Its experimental realization has been limited to sources producing single quantum states so far. In this work, we experimentally implement two significant building blocks of a quantum network involving two independent sources, i.e. a parallel configuration in which two parties share two copies of a state, and a tripartite configuration where a central node shares two independent states with peripheral nodes. Then, by extending previous self-testing techniques we provide device-independent lower bounds on the fidelity between the generated states and an ideal state made by the tensor product of two maximally entangled two-qubit states. Given its scalability and versatility, this technique can find application in the certification of larger networks of different topologies, for quantum communication and cryptography tasks and randomness generation protocols.
Predictive dynamical and stochastic systems
Creators: name: Ohira, Toru
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study a system whose dynamics are governed by predictions of its future states. A general formalism and concrete examples are presented. We find that the dynamical characteristics depend on how to shape the predictions as well as on how far ahead in time to make them. We also report that noise can induce oscillatory behavior, which we call "predictive stochastic resonance".
description: Presented and To appear in the Proc. of 9th Granada Seminar, (Granada, Spain, September 11-15, 2006)
The Implementation of Maryland's Bridge Plan for Academic Validation Policy in Anne Arundel County Public Schools
Creators: name: Hamlin, Kevin J.
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: Alternative
Assessment
Bridge
HSA
Performance
Testing

description: Maintaining the integrity and value of a high school diploma has been a fundamental reason for the establishment of state graduation requirements.  The No Child Left Behind (NCLB) Act of 2001 heightened the need for standards-based accountability programs within states.  Once annual measurable objectives have been set by the state, it is the responsibility of individual schools and districts to make sure students meet these standards.  To ensure uniformity in student assessment, most states design and require standardized tests as the indicator of adequate student progress.  A problem accompanying this high-stakes testing approach is the large number of students that are unable to pass the assessments.  In response to this reality, some school districts and states have designed alternative pathways to graduation.  In Maryland, one of these pathways is called the Bridge Plan for Academic Validation - a performance-based assessment for students to demonstrate their knowledge in English 10, Algebra 1 and Biology.  The implementation of this program varies across school districts and even schools within the same district.   Through interviews with 4 school district leaders, this study examined the origin and the implementation of the Bridge program in Anne Arundel County Public Schools (AACPS).  A survey instrument administered to 334 teachers at 11 comprehensive high schools in the AACPS system measured perceptions about the impact of the Bridge program on both their teaching practices and student attitudes.  Follow-up interviews were conducted with 36 school-based personnel to confirm and explore survey results in greater depth. Using a theoretical framework of public policy implementation, this study describes both the agreement and disagreement among the perceptions of district leaders and school-based employees.  Major themes arising from this analysis include the appropriateness of Bridge as an alternative to the HSA, the support provided to schools for the implementation of Bridge, and the variability of implementation in schools across the district.  The findings of this study should inform policymakers of the practical impacts of implementing the Bridge Program for Academic Validation.  It is important to examine both the intended and unintended consequences of this policy as future alternatives to standardized testing are considered in Maryland.
The Novel ''Controlled Intermediate Nuclear Fusion'' and its Possible Industrial Realization as Predicted by Hadronic Mechanics and Chemistry
Creators: name: Santilli, Ruggero Maria
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In this note, we propose, apparently for the first time, a new type of controlled nuclear fusion called "intermediate" because occurring at energies intermediate between those of the ''cold'' and ''hot'' fusions, and propose a specific industrial realization. For this purpose: 1) We show that known limitations of quantum mechanics, quantum chemistry and special relativity cause excessive departures from the conditions occurring for all controlled fusions; 2) We outline the covering hadronic mechanics, hadronic chemistry and isorelativity specifically conceived, constructed and verified during the past two decades for new cleans energies and fuels; 3) We identify seven physical laws predicted by the latter disciplines that have to be verified by all controlled nuclear fusions to occur; 4) We review the industrial research conducted to date in the selection of the most promising engineering realization as well as optimization of said seven laws; and 5) We propose with construction details a specific {\it hadronic reactor} (patented and international patents pending), consisting of actual equipment specifically intended for the possible industrial production of the clean energy released by representative cases of controlled intermediate fusions for independent scrutiny by interested colleagues.
description: 32 pages, 5 figures. Journal of Applied Sciences, in press
Micro-Ring Based Planar Lightwave Circuit Devices for Optical Communications
Creators: name: Wang, Zhipeng
Publisher: name: Maryland Shared Open Access Repository
Year: 2009
Subjects: arrayed waveguide grating
low coherence interferometric measurement
micro-ring resonator
optical filter
planar lightwave circuit
waveguide

description: Wavelength- division- multiplexing ( WDM) technology has been widely employed in  current optical communication systems. Optical signal processing and methods to  increase the spectral efficiency of the system have attracted tremendous research  interest due to the surging bandwidth and speed requirements introduced by Internet  traffic. These two areas demand high- performance optical components. To improve  component performance and reduce its cost, planar lightwave circuits ( PLC)  technology provides a very promising platform for component integration. Among  many PLC- based device structures, micro- ring structures are especially attractive due  to their versatile functionality and compact size. In this thesis, we examine several  micro- ring based PLC devices, namely filter, interleaver, and switch array for use in  optical communication systems.  We describe in detail the design concerns, testing methodologies, and control  schemes for these key, microring applications. By expanding low- coherence  interferometric measurements, we have characterized the behavior of these  components and demonstrated a systematic thermal- control scheme for the micro- ring  based filter and interleaver. We further introduce a more complicated ring- based  switch array ( which can be used as a tunable filter array) based on the operational  principles and control capability of the micro- ring filter. We also compare our  measurement results of devices fabricated by commercial vendors with our analysis  models.  Although this thesis is mainly about micro- ring- based optical filters, interleavers, and  switches, other PLC based devices are also included in this work due to their  relevancy. One of these is the AWG. AWG is widely used in the optical  communication systems as a ( de) multiplexer. We introduce a scheme using AWG as  a testing vehicle to investigate the mode profile of waveguides. The motivation for  this modeling is the system requirements on the width and flatness of the  ( de) multiplexer passband. The passband width and flatness of any AWG channel  highly depends on its input waveguide design. Based on the low- coherence  interferometric method, we propose a systematic measurement and analysis scheme  to characterize the input waveguide mode profile and demonstrate its effectiveness  for Gaussian, multimode interferometer ( MMI) and synchronized waveguides  designed by commercial vendors.
'Radicalising' the public sphere : from Habermas to Adorno
Creators: name: Rakuita, Ratu Nawi
Publisher: name: The Australian National University
Year: 2018
Subjects: subject: Habermas, J{u00FC}rgen
subject: Adorno, Theodor W., 1903-1969
subject: Communication Social aspects
subject: Social sciences Philosophy
subject: Dialectic

description: Jurgen Habermas's theory of communicative action continues to animate discussions on the nature of democracy in contemporary societies. Indeed there has been rarely a work of serious scholarship about the evolution of modern society that is not informed by the writings of this German philosopher. Yet there is a growing realisation that the evolution of contemporary societies has been accompanied by fundamental changes that have exerted strains on the relevance of Habermas's political philosophy. This fact has been popularly highlighted by that body of mainly French thought that comes under the rubric of poststructuralism. As a consequent there has been suggestion that the tradition of critical theory that Habermas is irrelevant. The dissertation agrees with the first argument: that the changes in contemporary societies have rendered Habermas's model of discursive democracy problematic. However, the conclusion of critical theory being in its twilight does not follow from this. The problem that is embedded within Habermas's oeuvre is well noted within the Frankfurt School. In fact, one of its original members anticipated the problems currently encountered by a communicative theory of society and puts forward a programme of critique that would ensure the continued relevance of Habermas and the critical tradition that he belongs to. The dissertation argues that a turn to Adorno's negative dialectics would address some of the debilitating features of Habermas's theory. Specifically, the incorporation of the insights of Adornos' dialectics into the theory of communicative action and by extension to the Habermasian public sphere would go a long way in realising the goals inherent in Habermas's political philosophy. This is to say that the current exercise stems from the conviction that an Adornian critique of communicative ethics, by way of a negative dialectics, offers improvements to Habermas's model of discursive democracy.
The Impact of Medicare's Per Diem Prospective Payment System on Psychiatric Inpatients: an empirical study on length of stay between Maryland and New Jersey psychiatric inpatients
Creators: name: Sun, Hui
Publisher: name: Maryland Shared Open Access Repository
Year: 2014

description: Prior to January 1, 2005,  psychiatric hospitals and Medicare exempt inpatient psychiatric units were paid  on a reasonable cost basis, with a limit on the rate of increase, under the Tax Equity and Fiscal Responsibility Act of 1982 (TEFRA). They were exempted from Medicare's DRG-specific per case PPS because of concerns that the psychiatric DRGs were very heterogeneous. As of January 1, 2005, an inpatient per diem prospective payment system (IPPS) was phased in over four years to allow adjustment time for hospitals. The IPPS was presumed to better capture these within-DRG variations among patients. It is possible, however, that length of stay (LOS) of Medicare's psychiatric inpatients would increase because of incentives to retain some patients longer if the applicable per diem rates exceeded their marginal per diem costs.  This thesis examined the IPPS impacts on LOS of patients discharged from Medicare exempt inpatient units in New Jersey (the treatment group) with similar Medicare patients in Maryland and non-Medicare psychiatric patients in New Jersey (the control groups). We used a difference-in-differences regression for two models, the first with Medicare patient data only and the second with both Medicare and non-Medicare patients, using discharge data for calendar years 2004 and 2007. Analysis was restricted to patients in two DRG groups, depressive neuroses and major depression. Results, from both models, indicated that, ceteris paribus, the treatment group experienced a small increase in LOS relative to the control groups after IPPS implementation. With Model 2, however, the differential LOS increase for New Jersey Medicare patients was barely (and not significantly) larger than the differential increase for New Jersey non-Medicare patients. This result may be evidence of IPPS spillover effects onto LOS decisions for non-Medicare patients. Overall IPPS impacts (including the spillover effects) on the average LOS of New Jersey Medicare patients were statistically significant and positive but the magnitudes were relatively small. With the exception of hospital size, which tended to increase LOS, no patient or hospital characteristics showed systematically significant influences on LOS.  Our findings mirrored previous studies. Hospitals appeared to respond to the IPPS incentive as expected though the estimated effect was modest.
CFT data in the Gross-Neveu model
Creators: name: Goykhman, Mikhail
name: Sinha, Ritam
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We calculate CFT data for the Gross-Neveu model in $2
Twistorial versus space--time formulations: unification of various string models
Creators: name: Fedoruk, Sergey
name: Lukierski, Jerzy
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We introduce the D=4 twistorial tensionfull bosonic string by considering the canonical twistorial 2--form in two--twistor space. We demonstrate its equivalence to two bosonic string models: due to Siegel (with covariant worldsheet vectorial string momenta $P_μ^{m}(τ,σ)$) and the one with tensorial string momenta $P_{[μν]}(τ,σ)$. We show how to obtain in mixed space-time--twistor formulation the Soroka--Sorokin--Tkach--Volkov (SSTV) string model and subsequently by harmonic gauge fixing the Bandos--Zheltukhin (BZ) model, with constrained spinorial coordinates.
description: RevTex4,APS, 4 pages. The version which appears in Phys. Rev. D
Numerical simulations of current generation and dynamo excitation in a mechanically-forced, turbulent flow
Creators: name: Bayliss, R. A.
name: Forest, C. B.
name: Nornberg, M. D.
name: Spence, E. J.
name: Terry, P. W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The role of turbulence in current generation and self-excitation of magnetic fields has been studied in the geometry of a mechanically driven, spherical dynamo experiment, using a three dimensional numerical computation. A simple impeller model drives a flow which can generate a growing magnetic field, depending upon the magnetic Reynolds number, Rm, and the fluid Reynolds number. When the flow is laminar, the dynamo transition is governed by a simple threshold in Rm, above which a growing magnetic eigenmode is observed. The eigenmode is primarily a dipole field tranverse to axis of symmetry of the flow. In saturation the Lorentz force slows the flow such that the magnetic eigenmode becomes marginally stable. For turbulent flow, the dynamo eigenmode is suppressed. The mechanism of suppression is due to a combination of a time varying large-scale field and the presence of fluctuation driven currents which effectively enhance the magnetic diffusivity. For higher Rm a dynamo reappears, however the structure of the magnetic field is often different from the laminar dynamo; it is dominated by a dipolar magnetic field which is aligned with the axis of symmetry of the mean-flow, apparently generated by fluctuation-driven currents. The fluctuation-driven currents have been studied by applying a weak magnetic field to laminar and turbulent flows. The magnetic fields generated by the fluctuations are significant: a dipole moment aligned with the symmetry axis of the mean-flow is generated similar to those observed in the experiment, and both toroidal and poloidal flux expulsion are observed.
description: 14 pages, 14 figures
Performance Evaluation of Probabilistic Latent Semantic Analysis for Unstructured Social Media Data
Creators: name: Prakash, Bharat
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: LSA
PLSA
semantic analysis
social media
topic analysis

description: Big data analytics is being applied in many fields today to mine unstructured data such as social media blogs or medical records. We focus this thesis on two popular analysis techniques, the methods of Latent Semantic Analysis(LSA) and Probabilistic Latent Semantic Analysis(PLSA), both used for interpreting or extracting concepts and relationships from data. As a use case, we propose to compare their performances in identifying communities from Twitter data sets during natural disasters such as Hurricanes. Latent semantic analysis uses statistical computations, typically singular value decomposition, to find semantic or contextual meaning from the data. It finds relationships between terms and concepts in an unstructured data set. Probabilistic latent semantic analysis or indexing is another method based on Bayesian analysis that typically is used for two-mode data.  The objective is to compare these two methods on a large set of social media documents related to Hurricane Sandy in order to form clusters of similar concepts. We then compare the performance of these two methods to determine their relative performance in determining communities and hidden topics, e.g. finding clusters of similar topics like power outages, floods, gas outages, etc. We apply two clustering methods, K-Means and Affinity Propagation to form clusters in the data. Finally, we present the results by applying external methods of evaluation after creating a test data-set to compare the performance of these two methods. Metrics like Precision, Recall, confusion matrix are used to evaluate the performance of our system. The evaluation showed us that in almost all the scenarios, PLSA works better than LSA in finding out hidden relationships and structures. Whereas LSA is slightly faster than PLSA.
CogNovo: Cognitive Innovation for Technological, Artistic, and Social Domains
Creators: name: Maranan, Diego S.
name: Loesche, Frank
name: Denham, Susan L
Publisher: name: Zenodo
Year: 2018

description: CogNovo is a multi-national doctoral training programme offering a research network for cognitive innovation, both as a new field of artistic and scientific investigation, and as a strategy for research and innovation. We summarize the programme’s goals, themes, members, partners, and projects in this paper.
Off-centred force-free neutron star magnetospheres
Creators: name: Pétri, Jérôme
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Neutron star electromagnetic activity produces pairs that fill their magnetosphere represented to the zeroth order by the force-free approximation. Neither dissipation nor acceleration nor radiation from charged particles is expected from this simplified model. So far, only centred dipole magnetic fields have been studied in this limit. In this paper, we explore the consequences of a rotating off-centred dipole on the force-free magnetosphere, showing the new magnetic field geometry, its spin-down luminosity as well as the electromagnetic kick and torque felt by the neutron star. Solutions are obtained by time-dependent numerical simulations of the force-free regime using our pseudo-spectral code written in spherical coordinates. Our results are also compared to known analytical expressions found for the off-centred vacuum dipole by an expansion to lowest order in the parameter $ε= d/R$, where $d$ is the displacement of the dipole from the stellar centre and $R$ the neutron star radius. The presence of a force-free plasma enhances the spin-down luminosity as well as the electromagnetic kick and torque with respect to a centred force-free dipole. The impact on isolated and binary neutron stars is revised in light of these new results.
description: Accepted for publication in Monthly Notices of the Royal Astronomical Society Main Journal
Location Authentication through Power Line Communication: Design, Protocol, and Analysis of a New Out-of-Band Strategy
Creators: name: Relan, Vivek G.
Publisher: name: Maryland Shared Open Access Repository
Year: 2010
Subjects: Applied cryptography
location authentication
man-in-the-middle attack
network security
out-of-band authentication
Power Line Communication (PLC)

description: We propose using Power Line Communication (PLC) as a second channel for data origin authentication, and we present a system architecture and protocol for doing so taking advantage of existing infrastructure for communicating over power lines.  Our system connects a user's computer to a secure electric meter in his building via a secure Human Authorization Detector (HAD).  The electric meter, which has a unique secret identifier and encryption key, communicates securely with the trusted Power Grid Server (PG) through PLC.  Upon request from an Internet Application Server (AS), the user sends a location certificate to the AS, obtained via PLC from the PG and signed by the PG.  Because PLC requires physical access to the electric meter, our system offers fine-grain location authentication.  Unlike movable modems and dongles, the meter is permanently attached to the user's building.  The user authorizes or denies certificate requests and deliveries by reading the HAD's display and pushing a button on the HAD, thus protecting against the possible threat of malware on the user's computer maliciously requesting or forwarding location certificates unauthorized by the user.  Our system provides strong location authentication useful to many on-line applications, such as banking and SCADA systems.  PLC offers finer-grain location authentication than do cellular telephones.  Furthermore, the power grid is deployed widely and is highly reliable, even in many places where cellular telephone and GPS signals are obstructed or unavailable.  We present our architecture and Power line Location Authentication Protocol (PLAP) in sufficient detail to permit further implementation and analysis.
THE IMPACT OF INSURANCE TYPES ON WORK EXPERIENCE AND MEDICAL UTILIZATION OF DIABETICS
Creators: name: Misra, Arpit
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: Consumer directed health plans
Cost of Diabetes
Employer burden

description: Title of Document:The Impact of Insurance Types on Work                                         Experience and Medical Utilization of Diabetics Arpit Misra, PhD, 2014 Directed By: Dr. Marsha Goldfarb, Professor, Economics                                         Department Research objectives: The first objective of this dissertation is to assess the economic burden of diabetes from the perspective of employers as well as how these cost burdens are affected by the nature of the worker's insurance coverage. The second objective is to assess the quality of diabetes care using quality measures by type of health plan. The final objective investigates whether diabetics enrolled in consumer directed health plans are more likely to be hospitalized, or hospitalized at a more severe disease stage, compared with diabetics enrolled in more traditional health insurance plans.    Sources of Data: Truven MarketScan Commercial Claims and Encounters databases for time period 2004 through Q12011, Truven MarketScan Health and Productivity Management database, Truven MarketScan Laboratory Results database, and the Medical Episode Grouper.   Key Results:    The employer's direct medical costs for beneficiaries with diabetes were higher than for beneficiaries without diabetes. Inpatient hospital costs account for the majority of the incremental costs. The employer's indirect costs for beneficiaries with diabetes were higher than for beneficiaries without diabetes. A lack of statistical significance suggests that the adjusted medical cost for diabetics enrolled in CDHPs is no different than the adjusted medical cost for diabetics enrolled in PPOs. Diabetic men are more likely to retire earlier and diabetic women are likely to retire later than non-diabetic men. Diabetics enrolled in CDHPs are more likely to get the recommended tests and maintain the recommended LDL levels than diabetics with other forms of insurance, but they are also more likely to maintain poor HbA1c levels. CDHP diabetics are less likely to be admitted to inpatient facilities when compared to PPO diabetics; and when admitted, CDHP diabetics are presented at a comparable disease stage as PPO diabetics.
THE EFFECTIVENESS OF THE METHOD TALK FOR WRITING IN DEVELOPING WRITING SKILLS OF EFL STUDENTS
Creators: name: Akhmad Sabijanovich Baisov
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: Writing
literature genres
early years
extended talking
vocabulary
EFL learners
language map

description: This article primarily aims at outlining specific basic features of the almost recent concept in language teaching field which is developing writing skills through a method named ”Talk4 Writing”. Obviously true is that this is one of the latest innovations in language teaching policy that is totally well to apply, especially, for young learners whose main interests are met by the ways of teaching writing in it. It proposes teachers to make children extensively exposed to different text genres by talking at a more frequency. This familiarization is developed through an extended ‘talking the text’, mostly teacher-led sessions and independent approach of pupils’ to writing that specific type of a text
Decay and fusion as two different mechanisms of stability loss for the (C_20)_2 cluster dimer
Creators: name: Openov, L. A.
name: Podlivaev, A. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The thermal stability of the (C_20)_2 cluster dimer consisting of two C_20 fullerenes is examined using a tight-binding approach. Molecular dynamics simulations of the (C_20)_2 dimer at temperatures T = 2000 - 3500 K show that the finite lifetime τof this metastable system is determined by two fundamentally different processes, the decay of one of the C_20 fullerenes and the fusion of two C_20 fullerenes into the C_40 cluster. The activation energies for these processes Ea = 3.4 and 2.7 eV, respectively, as well as their frequency factors, have been determined by analyzing the dependence of τon T.
description: Slightly modified version of the paper to appear in JETP Lett
Worldline Instantons II: The Fluctuation Prefactor
Creators: name: Dunne, Gerald V.
name: Gies, Holger
name: Schubert, Christian
name: Wang, Qing-hai
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In a previous paper [1], it was shown that the worldline expression for the nonperturbative imaginary part of the QED effective action can be approximated by the contribution of a special closed classical path in Euclidean spacetime, known as a worldline instanton. Here we extend this formalism to compute also the prefactor arising from quantum fluctuations about this classical closed path. We present a direct numerical approach for determining this prefactor, and we find a simple explicit formula for the prefactor in the cases where the inhomogeneous electric field is a function of just one spacetime coordinate. We find excellent agreement between our semiclassical approximation, conventional WKB, and recent numerical results using numerical worldline loops.
description: 28 pages, 1 figure; v2 references added, version in PRD
The Mexican Economy in the 1990's: Markets Are In, State Control Is Out
Creators: name: Shane, Mathew
name: Stallings, David
name: Shane, Mathew
name: Stallings, David
Publisher: name: Unknown
Year: 1991
Subjects: International Relations/Trade
Public Economics

description: The dramatic changes in Mexico's macroeconomic policies have shown that the Government is prepared to alter the course of the Mexican economy to keep pace with new global realities. Initiated in December 1987, these policies are moving Mexico toward a more open economy based on the principles of free trade and competitive enterprise. The United States benefits not only from a more secure and stable southern border, but also from a potential boost in trade. Inflation declined after the Mexican Government reduced foreign debt, decreased trade constraints, increased foreign investment, reduced the budget deficit, and slowed the depreciation rate of the peso. Economic growth has accelerated, averaging 3.5 percent in 1989-91, compared with less than 2 percent in 1982-88. Growth is expected to continue over the next 5 years.
Local asymptotic normality in quantum statistics
Creators: name: Guta, Madalin
name: Jencova, Anna
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The theory of local asymptotic normality for quantum statistical experiments is developed in the spirit of the classical result from mathematical statistics due to Le Cam. Roughly speaking, local asymptotic normality means that the family varphi_{θ_{0}+ u/\sqrt{n}}^{n} consisting of joint states of n identically prepared quantum systems approaches in a statistical sense a family of Gaussian state phi_{u} of an algebra of canonical commutation relations. The convergence holds for all "local parameters" u\in R^{m} such that theta=theta_{0}+ u/sqrt{n} parametrizes a neighborhood of a fixed point theta_{0}\in Theta\subset R^{m}. In order to prove the result we define weak and strong convergence of quantum statistical experiments which extend to the asymptotic framework the notion of quantum sufficiency introduces by Petz. Along the way we introduce the concept of canonical state of a statistical experiment, and investigate the relation between the two notions of convergence. For reader's convenience and completeness we review the relevant results of the classical as well as the quantum theory.
description: 41 pages, to appear in Commun. Math. Phys
The Discovery of Nulling and Mode Switching Pulsars with CHIME/Pulsar
Creators: name: Ng, C.
name: Wu, B.
name: Ma, M.
name: Ransom, S. M.
name: Naidu, A.
name: Fonseca, E.
name: Boyle, P. J.
name: Brar, C.
name: Cubranic, D.
name: Demorest, P. B.
name: Good, D. C.
name: Kaspi, V. M.
name: Masui, K. W.
name: Michilli, D.
name: Patel, C.
name: Renard, A.
name: Scholz, P.
name: Stairs, I. H.
name: Tendulkar, S. P.
name: Tretyakov, I.
name: Vanderlinde, K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Pulsar backend of the Canadian Hydrogen Intensity Mapping Experiment (CHIME) has monitored hundreds of known pulsars in the northern sky since Fall 2018, providing a rich data set for the study of temporal variations in pulsar emission. Using a matched filtering technique, we report, for the first time, nulling behaviour in five pulsars as well as mode switching in nine pulsars. Only one of the pulsars is observed to show both nulling and moding signals. These new nulling and mode switching pulsars appear to come from a population with relatively long spin periods, in agreement with previous findings in the literature.
description: 11 pages, 7 figures, 2 tables, accepted by ApJ
A Typed Hybrid Description Logic Programming Language with Polymorphic Order-Sorted DL-Typed Unification for Semantic Web Type Systems
Creators: name: Paschke, Adrian
Publisher: name: arXiv
Year: 2006
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: F.3; H.2; I.2; D.2

description: In this paper we elaborate on a specific application in the context of hybrid description logic programs (hybrid DLPs), namely description logic Semantic Web type systems (DL-types) which are used for term typing of LP rules based on a polymorphic, order-sorted, hybrid DL-typed unification as procedural semantics of hybrid DLPs. Using Semantic Web ontologies as type systems facilitates interchange of domain-independent rules over domain boundaries via dynamically typing and mapping of explicitly defined type ontologies.
description: Full technical report 12/05. Published inn: Proc. of 2nd Int. Workshop on OWL: Experiences and Directions 2006 (OWLED'06) at ISWC'06, Athens, Georgia, USA, 2006
An evaluation of the social cultural competency for success training program for the acquisition of intercultural interpersonal competency skills among health care trainees
Creators: name: Shergill, Amritpal Singh
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of this study was to test the validity and effectiveness of Westwood, Mak, Barker, and Ishiyama's (1995) "Social Cultural Competency for Success" (SCCS) program. The SCCS program is designed to teach specific social cultural competency skills in a group format by means of modeling, coaching, role playing, role rehearsal and constructive feedback. The premise of the SCCS is that successful acquisition and performance of social cultural competency skills will enhance one's sense of competence and self-efficacy. A between subjects before-after research design was utilized. A crosscultural sample of 36 students in the Practical Nursing program at the Vancouver Community College was randomly assignment to an experimental and a control group. The former received the SCCS program for a total of 18 hours over three weeks, while the latter participated in a regular didactic course curriculum. The following pre and post test instruments were administered: (1) Sherer, Maddux, Mercadante, Prentice-Dunn, Jacobs, & Rogers' (1982) Self-Efficacy Scale; (2)Ishiyama's (1995b) Situational Avoidance Tendency Scale (SAT); and (3) Ishiyama's (1996) Interpersonal Skills Checklist (ISC). As a post only measure, all participants also participated in a role play scenario at the end of the SCCS program which involved the performance of socio-cultural competency skills with independent blind raters who rated participants' performance on the Behavioural Skills Checklist (BSC). An independent samples t test suggested that the experimental group demonstrated superior performance on self reported measures of social cultural competency skills, based on their evaluations on the BSC by independent blind raters, as compared to the control group. Univariate Split-Plot Repeated Measures ANOVA suggested that compared to the control group: (1) the experimental group reported significantly higher level of verbal interaction competency on the ISC; (2) the experimental group reported significantly lower level of situational avoidance tendency on the SAT ; and (3) there were no significant effects of the SCCS program on the general self-efficacy and the social self-efficacy as measured on the Self Efficacy Scale. Further exploratory analysis suggested that immigrant participants demonstrated more improvement than Canada-born participants. The SCCS program may be an effective method for teaching social cultural competency skills as well as for the development of culturally sensitive counselling models and interventions for culturally diverse clients and intercultural counsellor training programs.
ИСПОЛЬЗОВАНИЕ СОЕВОГО И ПШЕНИЧНОГО СОЛОДОВ В ПРОИЗВОДСТВЕ НАПИТКОВ БРОЖЕНИЯ
Creators: name: КИСЕЛЕВА ТАТЬЯНА ФЕДОРОВНА
name: ГРЕБЕННИКОВА ЮЛИЯ ВЛАДИМИРОВНА
name: МИЛЛЕР ЮЛИЯ ЮРЬЕВНА
name: ОРЛОВ АНАТОЛИЙ АНАТОЛЬЕВИЧ
Publisher: name: Пищевая промышленность
Year: 2019
Subjects: КАЧЕСТВО СБРОЖЕННЫХ НАПИТКОВ
ПОВЫШЕННАЯ ПИЩЕВАЯ ЦЕННОСТЬ
ПОЛИСОЛОДОВЫЕ СБРОЖЕННЫЕ НАПИТКИ
ПШЕНИЧНЫЙ СОЛОД
СОЕВЫЙ СОЛОД

description: Особое внимание в производстве пищевых продуктов уделяется вопросу создания функциональных продуктов питания и напитков. В связи с этим проводятся масштабные исследования по изучению влияния на организм человека различных веществ, в том числе витаминов, минеральных соединений, аминокислот, а также возможности обогащения ими продуктов питания. Основным фактором, формирующим функциональный продукт, является сырье, а в случае производства натуральных напитков - растительное сырье, в частности, зерновое, плодовое, овощное, лекарственно-техническое. В работе показана возможность получения сброженного солисолодового напитка с добавлением соевого и пшеничного солодов в качестве ингредиентов, формирующих функциональные признаки напитка. Используемые в технологии солоды получены посредством применения на стадии замачивания зерна комплекса органических кислот и отличаются высокой ферментативной активностью, необходимой для обеспечения нормального проведения технологических стадий, а также повышенным содержанием аминокислот. Разработаны технология и рецептуры двух светлых и двух темных напитков брожения на основе ячменного, соевого и пшеничного солодов, а также карамельного солода во втором случае. При определении оптимального соотношения зернового сырья в рецептурах напитков учитывался фактор влияния внесения альтернативного солода и его количества на технологические показатели сусла. В готовых напитках определены основные показатели качества и безопасности в соответствии с требованиями нормативно-технической документации, а также содержание органических кислот и аминокислот, подтверждающих повышенную пищевую ценность разработанных напитков.
Quasinormal modes and thermodynamic phase transitions
Creators: name: Berti, Emanuele
name: Cardoso, Vitor
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It has recently been suggested that scalar, Dirac and Rarita-Schwinger perturbations are related to thermodynamic phase transitions of charged (Reissner-Nordström) black holes. In this note we show that this result is probably a numerical coincidence, and that the conjectured correspondence does not straightforwardly generalize to other metrics, such as Kerr or Schwarzschild (anti-)de Sitter. Our calculations do not rule out a relation between dynamical and thermodynamical properties of black holes, but they suggest that such a relation is non-trivial.
description: 3 pages, submitted to Phys.Rev.D as a Brief Report