cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Improving the Convergence Properties of the Data Augmentation Algorithm with an Application to Bayesian Mixture Modeling
Creators: name: Hobert, James P.
name: Roy, Vivekananda
name: Robert, Christian P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Methodology (stat.ME)
subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: The reversible Markov chains that drive the data augmentation (DA) and sandwich algorithms define self-adjoint operators whose spectra encode the convergence properties of the algorithms. When the target distribution has uncountable support, as is nearly always the case in practice, it is generally quite difficult to get a handle on these spectra. We show that, if the augmentation space is finite, then (under regularity conditions) the operators defined by the DA and sandwich chains are compact, and the spectra are finite subsets of $[0,1)$. Moreover, we prove that the spectrum of the sandwich operator dominates the spectrum of the DA operator in the sense that the ordered elements of the former are all less than or equal to the corresponding elements of the latter. As a concrete example, we study a widely used DA algorithm for the exploration of posterior densities associated with Bayesian mixture models [J. Roy. Statist. Soc. Ser. B 56 (1994) 363--375]. In particular, we compare this mixture DA algorithm with an alternative algorithm proposed by Frühwirth-Schnatter [J. Amer. Statist. Assoc. 96 (2001) 194--209] that is based on random label switching.
description: Published in at http://dx.doi.org/10.1214/11-STS365 the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Additional file 1 of Quantitative proteomic analysis of local and systemic extracellular vesicles during Eimeria falciformis infectious cycle in the host
Creators: name: Olajide, Joshua Seun
name: Qu, Zigang
name: Yang, Shunli
name: Yang, Bin
name: Xu, Xiao
name: Wang, Jing
name: Cai, Jianping
Publisher: name: figshare
Year: 2023
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1: Schematics, protein quantification and gene functions
On Resource Allocation in Fading Multiple Access Channels - An Efficient Approximate Projection Approach
Creators: name: ParandehGheibi, Ali
name: Eryilmaz, Atilla
name: Ozdaglar, Asuman
name: Medard, Muriel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Information Theory (cs.IT)
subject: Networking and Internet Architecture (cs.NI)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We consider the problem of rate and power allocation in a multiple-access channel. Our objective is to obtain rate and power allocation policies that maximize a general concave utility function of average transmission rates on the information theoretic capacity region of the multiple-access channel. Our policies does not require queue-length information. We consider several different scenarios. First, we address the utility maximization problem in a nonfading channel to obtain the optimal operating rates, and present an iterative gradient projection algorithm that uses approximate projection. By exploiting the polymatroid structure of the capacity region, we show that the approximate projection can be implemented in time polynomial in the number of users. Second, we consider resource allocation in a fading channel. Optimal rate and power allocation policies are presented for the case that power control is possible and channel statistics are available. For the case that transmission power is fixed and channel statistics are unknown, we propose a greedy rate allocation policy and provide bounds on the performance difference of this policy and the optimal policy in terms of channel variations and structure of the utility function. We present numerical results that demonstrate superior convergence rate performance for the greedy policy compared to queue-length based policies. In order to reduce the computational complexity of the greedy policy, we present approximate rate allocation policies which track the greedy policy within a certain neighborhood that is characterized in terms of the speed of fading.
description: 32 pages, Submitted to IEEE Trans. on Information Theory
Studies on common scab of potato
Creators: name: Lacey, Michael
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis includes studies on: 1) characteristics of streptomycete isolates from common scab lesions of potatoes collected from across the Tasmanian potato cropping region; 2) scab conduciveness of soils from that region and ; 3) effects of green manures on common scab of potato. Most of 94 streptomycete isolates fitted into four groups based on morphological and physiological characteristics. Groups were: Streptomyces scabies (25 stains); S. violaceusniger (11); Streptosporangium spp. (3); and strains resembling Streptornyces halstedii (29). Some of the remaining 26 ungrouped strains resembled S. scabies. Most S. scabies strains could grow at pH 4.5. Pathogenicity of strains was evaluated in four ways. In a potato disk assay, all S. violaceusniger strains, S. scabies reference pathogen strain #32 and five S. scabies-like ungrouped strains showed clear signs of pathogenicity. Media from oatmeal-broth (OMB) cultures of S. scabies and S. violaceusniger strains inhibited radish seedling growth, while S. violaceusniger strains 54/3 and 75/1-1 killed seedlings. Surface necrosis occurred within 24 hours of dipping potato minitubers in media from OMB cultures of S. violaceusniger. Three S. scabies strains (including #32) also produced darkening of lenticels, indicating necrotising potential. S. violaceusniger strains produced nigericin while strains 54/3 and 75/1-1 also produced geldanamycin, probably accounting for their virulence in pathogenicity assays. Thaxtomin A production by strain #32 was also confirmed. Scab conduciveness of 36 Tasmanian potato cropping soils was compared in a glasshouse trial. Linear regressions showed no association between scab severity and any of 12 individual soil chemical properties. However, scab was much less likely below a threshold pH or when the concentration of exchangeable cations Ca', Mg' and K+ (considered together as milliequivalents) were below a threshold value. In glasshouse studies, green manures did not increase scabbing and in one pot trial a broad-bean manure reduced scab severity. Green manures were associated with increased cellulase activity and electrical conductivity (EC) of soil in the absence of added fertiliser plus, in some trials, increased tuber yields. Added streptomycete antagonists did not noticeably effect scab severity. In field trials at two sites, lupin or ryegrass green manures did not effect scab severity, while increased scab with an oat manure at one site was associated with increased soil EC. Increased scab with a canola green manure, evaluated at only one site, was associated with reduced soil microbial activity as assessed by FDA hydrolysis. At field sites, green manures did not affect tuber yield, soil cellulase activity or pH.
Relic density in nonuniversal gaugino mass models with SO(10) GUT symmetry
Creators: name: Huitu, Katri
name: Laamanen, Jari
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Non-universal boundary conditions in grand unified theories can lead to nonuniversal gaugino masses at the unification scale. In R-parity preserving theories the lightest supersymmetric particle is a natural candidate for the dark matter. The composition of the lightest neutralino and the identity of the next-to-lightest supersymmetric particle are studied, when nonuniversal gaugino masses come from representations of SO(10). In these cases, the thermal relic density compatible with the Wilkinson Microwave Anisotropy Probe observations is found. Relic densities are compared with the universal case. Mass spectra in the studied cases are discussed.
description: 7 pages, 13 figures, revtex4, two-column. V2: Typos corrected and references added
Registered Nurses' Perceptions of Workplace Stress in Paediatric Intensive Care Units in Saudi Arabia: a Mixed-Method Research Study
Creators: name: Alabdullah, Amany Anwar
Publisher: name: UH Research Archive
Year: 2020
Subjects: Nurse
Workplace stress
Occupational stress
Job stress
PICU
Paediatric intensive care
Saudi Arabia
Sources of workplace stress
Quality of nursing care

description: Background: Workplace stress among nurses in Intensive Care Units (ICU) has been shown to variously affect their health, the quality of nursing care, healthcare delivery and national healthcare costs (Mokhtar et al., 2016). Although this is equally true for Paediatric Intensive Care Units (PICUs), research into this environment has remained scarce and no previous studies have focused on workplace stress in PICUs within a Saudi Arabian (SA) context. The current research study addressed this omission. Aims: This research study used a mixed-method approach to explore and understand workplace stress and its sources among nurses working in public hospital PICUs in Riyadh and Dammam, SA. Methods: In this mixed-method research study, 172 Registered Nurses from six PICUs in large public hospitals completed questionnaires in Phase 1 (quantitative data collection). These questionnaires comprised of the Expanded Nursing Stress Scale (ENSS) and personal characteristic questions. In the subsequent Phase 2 (qualitative data collection), 24 of the original 172 participants from Phase 1 took part in face-to-face semi-structured interviews. Results: The majority of the nurses suffered from a medium level of workplace stress; this was associated with tangible personal characteristics, such as gender, nationality and academic nursing qualifications. Sources of workplace stress related to ‘workload’, ‘caring for critically ill children’, ‘cultural challenges’ and ‘nursing management and nursing colleagues’. However, nurses in PICUs (both SA and expatriates) practiced effective coping strategies that were both individual to each person as well as work related – these helped them to deal with workplace stress and remain working in a PICU environment for several years. The results of this research study led to the development of the dynamic model of workplace stress; this illustrates the complexity of workplace stress within a PICU context and highlights the interactions between both the sources and consequences of it. Conclusion and Implications: This research study found that nurses in public hospital PICUs in the cities of Riyadh and Dammam in SA, reported a medium level of workplace stress. However, interestingly, and importantly, the nurses perceived the PICU environment to be a most rewarding place to work. The results have implications for policy and practice for SA stakeholders in terms of how to enhance the working environment for nurses, raise healthcare professionals’ cultural awareness, provide insight into coping strategies and promote respect for the nursing profession in SA. These measures would potentially facilitate a reduction in PICU workplace stress and thus improve both the nurses’ health as well as the quality of the nursing care.
MPEC 2023-Y18 : DAILY ORBIT UPDATE (2023 December 17)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
The Validity of the Super-Particle Approximation during Planetesimal Formation
Creators: name: Rein, Hanno
name: Lesur, Geoffroy
name: Leinhardt, Zoe M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The formation mechanism of planetesimals in protoplanetary discs is hotly debated. Currently, the favoured model involves the accumulation of meter-sized objects within a turbulent disc, followed by a phase of gravitational instability. At best one can simulate a few million particles numerically as opposed to the several trillion meter-sized particles expected in a real protoplanetary disc. Therefore, single particles are often used as super-particles to represent a distribution of many smaller particles. It is assumed that small scale phenomena do not play a role and particle collisions are not modeled. The super-particle approximation can only be valid in a collisionless or strongly collisional system, however, in many recent numerical simulations this is not the case. In this work we present new results from numerical simulations of planetesimal formation via gravitational instability. A scaled system is studied that does not require the use of super-particles. We find that the scaled particles can be used to model the initial phases of clumping if the properties of the scaled particles are chosen such that all important timescales in the system are equivalent to what is expected in a real protoplanetary disc. Constraints are given for the number of particles needed in order to achieve numerical convergence. We compare this new method to the standard super-particle approach. We find that the super-particle approach produces unreliable results that depend on artifacts such as the gravitational softening in both the requirement for gravitational collapse and the resulting clump statistics. Our results show that short range interactions (collisions) have to be modelled properly.
description: 10 pages, 7 figures, accepted for publication in Astronomy and Astrophysics
Now that machine actionable DMPs are becoming available, what could we do with them?
Creators: name: Mietchen, Daniel
Publisher: name: Zenodo
Year: 2021

description: This presentation is a contribution to the session "Maintenance and Adoptions of the Common Standard for machine-actionable DMPs" taking place on 9 November 2021 as part of the 18th Research Data Alliance Plenary. A copy of the recording is also available on YouTube via https://youtu.be/QJX_JZGicec .
Experimental evaluation of queueing theory
Creators: name: Goyder, David
Publisher: name: University of British Columbia
Year: 2011

description: This thesis examines methods for predicting queue length of single server queues in order to evaluate how the practitioner may achieve greatest accuracy. Because accuracy is dependent on the correct estimation of the rate parameters of the population distributions and the choice of the appropriate method of prediction, the effects of errors in both of these are examined. A computer simulation model written in GPSS/360 is used to create a real world from which data is drawn and where long run performance represents the correct solution. For four values of rho nine simulations are run, each with a unique combination of inter-arrival and service time distributions. In each of the 36 runs 10,000 arrivals are generated from which two samples of size 36 and 100 are taken and from which the generated queue statistics form the standard. A statistical analysis is used to detect samples taken from exponential distributions. The lack of a suitable test for small samples led to the development of a test based on the correlation coefficient of the sample times and pre-computed standard data. Estimates for queue length are found with classical queueing formulae and solution methods suggested by Marshall. These predictions are done without prior knowledge of rate parameters and queue type which are estimated from the samples. Then the estimated solutions are compared to the real world solution derived from the simulation. Estimation error for each method is measured and conclusions are drawn as to their accuracy in predicting queue length. It is found that accurate queue length estimation is possible using methods that can be applied without a great deal of prior mathematical knowledge. The classical formulae are accurate only when applied to queues with exponential inter-arrival times and are found to overestimate when applied to other queue types. The Increasing Failure Rate (IFR) bounds on queue length provide a satisfactory method of estimation for the general class of queues.
The Gluonic Operator Matrix Elements at O(α_s^2) for DIS Heavy Flavor Production
Creators: name: Bierenbaum, I.
name: Blümlein, J.
name: Klein, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the $O(α_s^2)$ gluonic operator matrix elements for the twist--2 operators, which contribute to the heavy flavor Wilson coefficients in unpolarized deeply inelastic scattering in the region $Q^2 \gg m^2$, up to the linear terms in the dimensional parameter $\varepsilon$, ($D= 4 + \varepsilon$). These quantities are required for the description of parton distribution functions in the variable flavor number scheme (VFNS). The $O(α_s^2 \varepsilon)$ terms contribute at the level of the $O(α_s^3)$ corrections through renormalization. We also comment on additional terms, which have to be considered in the fixed (FFNV) and variable flavor number scheme, adopting the $\overline{\rm MS}$ scheme for the running coupling constant.
description: 12 pages Latex, 1 style file
\Imhotep Phidias Antonio le Corridor\" : an interpretation of the work of Russell Hall"
Creators: name: Katalin, MavÉvÖthevÉvÖ
Publisher: name: University Of Tasmania
Year: 2023

description: The dilemma that stems from the desire to benefit from the potential offered by contemporary advancements on the one hand, and the responsibility of safeguarding cultural heritage on the other, has been puzzling philosophers, theoreticians and practising architects with increasing intensity during the past few decades. Critical Regionalism which takes an interpretation of Paul Ricoeur's theories presented in his essay Universal Civilisation and National Cultures (1961) as its philosophical basis, has been viewed as a viable approach in architecture to overcome this problem. Russell Hall is considered as a remarkable Queensland architect working within a Critical Regionalist paradigm. However, an interpretation of Hall's approach in terms of Critical Regionalism does not sufficiently reveal the personal philosophy and ideals in which his solutions are grounded. A broader interpretation of Hall's work is offered through an analysis of Ricoeur's theory, which provides a concept of the 'creative individual', who, through experiments and inventions gives impulse to cultural dynamism and thus contributes to the renewal and survival of a culture This concept is illustrated by the ideas and careers of four individuals: Antoni Gaudi, Constantin Brancusi, Le Corbusier and Richard Buckminster Fuller. Their individualistic and innovative approach in art and architecture is shared by Hall, whose thoughts and aims as well as his buildings and objects are explored in the latter part of the thesis.
Additional file 1: of Pneumonia in patients with cirrhosis: risk factors associated with mortality and predictive value of prognostic models
Creators: name: Xu, Lichen
name: Ying, Shuangwei
name: Hu, Jianhua
name: Wang, Yunyun
name: Yang, Meifang
name: Ge, Tiantian
name: Huang, Chunhong
name: Xu, Qiaomai
name: Zhu, Haihong
name: Chen, Zhi
name: Ma, Weihang
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Table S1. Comparison of clinical feature between community acquired and nosocomial acquired pneumonia in cirrhotic patients. (DOCX 20â kb)
Additional file 2: of Pneumonia in patients with cirrhosis: risk factors associated with mortality and predictive value of prognostic models
Creators: name: Xu, Lichen
name: Ying, Shuangwei
name: Hu, Jianhua
name: Wang, Yunyun
name: Yang, Meifang
name: Ge, Tiantian
name: Huang, Chunhong
name: Xu, Qiaomai
name: Zhu, Haihong
name: Chen, Zhi
name: Ma, Weihang
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Virology
subject: Computational Biology

description: Table S2. Predictors of 90-day and 30-day mortality in the univariate analysis in cirrhotic patients with pneumonia. (DOC 64â kb)
Spitzer mapping of molecular hydrogen pure rotational lines in NGC 1333: A detailed study of feedback in star formation
Creators: name: Maret, Sebastien
name: Bergin, Edwin A.
name: Neufeld, David A.
name: Green, Joel D.
name: Watson, Dan M.
name: Harwit, Martin O.
name: Kristensen, Lars E.
name: Melnick, Gary J.
name: Sonnentrucker, Paule
name: Tolls, Volker
name: Werner, Michael W.
name: Willacy, Karen
name: Yuan, Yuan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present mid-infrared spectral maps of the NGC 1333 star forming region, obtained with the the Infrared Spectrometer on board the Spitzer Space Telescope. Eight pure H2 rotational lines, from S (0) to S (7), are detected and mapped. The H2 emission appears to be associated with the warm gas shocked by the multiple outflows present in the region. A comparison between the observed intensities and the predictions of detailed shock models indicates that the emission arises in both slow (12 - 24 km/s) and fast (36 - 53 km/s) C-type shocks with an initial ortho-to-para ratio of ~ 1. The present H2 ortho-to-para ratio exhibits a large degree of spatial variations. In the post-shocked gas, it is usually about 2, i.e. close to the equilibrium value (~ 3). However, around at least two outflows, we observe a region with a much lower (~ 0.5) ortho-to-para ratio. This region probably corresponds to gas which has been heated-up recently by the passage of a shock front, but whose ortho-to-para has not reached equilibrium yet. This, together with the low initial ortho-to-para ratio needed to reproduce the observed emission, provide strong evidence that H2 is mostly in para form in cold molecular clouds. The H2 lines are found to contribute to 25 - 50% of the total outflow luminosity, and thus can be used to ascertain the importance of star formation feedback on the natal cloud. From these lines, we determine the outflow mass loss rate and, indirectly, the stellar infall rate, the outflow momentum and the kinetic energy injected into the cloud over the embedded phase. The latter is found to exceed the binding energy of individual cores, suggesting that outflows could be the main mechanism for core disruption.
description: Accepted for publication in the Astrophysical Journal
Direct photon production with effective field theory
Creators: name: Becher, Thomas
name: Schwartz, Matthew D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The production of hard photons in hadronic collisions is studied using Soft-Collinear Effective Theory (SCET). This is the first application of SCET to a physical, observable cross section involving energetic partons in more than two directions. A factorization formula is derived which involves a non-trivial interplay of the angular dependence in the hard and soft functions, both quark and gluon jet functions, and multiple partonic channels. The relevant hard, jet and soft functions are computed to one loop and their anomalous dimensions are determined to three loops. The final resummed inclusive direct photon distribution is valid to next-to-next-to-leading logarithmic order (NNLL), one order beyond previous work. The result is improved by including non-logarithmic terms and photon isolation cuts through matching, and compared to Tevatron data and to fixed order results at the Tevatron and the LHC. The resummed cross section has a significantly smaller theoretical uncertainty than the next-to-leading fixed-order result, particularly at high transverse momentum.
description: 42 pages, 9 figures; v2: references added, minor changes; v3: typos; v4: typos, corrections in (16), (47), (72)
Additional file 1 of Predicting subcellular location of protein with evolution information and sequence-based deep learning
Creators: name: Liao, Zhijun
name: Pan, Gaofeng
name: Sun, Chao
name: Tang, Jijun
Publisher: name: figshare
Year: 2021
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 1. This file contains detailed information about the performance of this method when it is trained and tested on dataset D3106 and D4802.
Turbulent Spectra in the Solar Wind Plasma
Creators: name: Shaikh, Dastgeer
name: Zank, G. P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Space Physics (physics.space-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Observations of interstellar scintillations at radio wavelengths reveal a Kolmogorov-like scaling of the electron density spectrum with a spectral slope of -5/3 over six decades in wavenumber space. A similar turbulent density spectrum in the solar wind plasma has been reported. The energy transfer process in the magnetized solar wind plasma over such extended length-scales remains an unresolved paradox of modern turbulence theories raising the especially intriguing question of how a compressible magnetized solar wind exhibits a turbulent spectrum that is a characteristic of an incompressible hydrodynamic fluid. To address these questions, we have undertaken three-dimensional time dependent numerical simulations of a compressible magnetohydrodynamic fluid describing super-Alfvénic, supersonic and strongly magnetized plasma. It is shown that the observed Kolmogorov-like (-5/3) spectrum can develop in the solar wind plasma by supersonic plasma motions that dissipate into highly subsonic motion that passively convect density fluctuations.
description: The paper is accepted for publication in Journal of Plasma Physics
Relative price performance : the theory and an empirical test
Creators: name: Hallam, William P.
Publisher: name: University of British Columbia
Year: 2011

description: This study has a twofold purpose. The primary purpose is to examine empirically the hypothesis of relative price performance. This hypothesis states that issues in the stock market which have recorded a price performance superior to the market for a period of time will tend to continue to record a superior price performance relative to the market. Conversely, those issues which have recorded an inferior price performance relative to the market will tend to maintain an inferior relative performance. The secondary purpose of the study is to develop a theoretical framework that attempts to explain how complexity in corporations is a constraint on the analysis of those corporations and is a determinant of security price behavior. The data consisted of a sample of 1214 companies which constituted those stocks included in the four major indices on the Toronto Stock Exchange as of January 1, 1965. The data tested were adjusted monthly stock prices covering the period January, 1965 to November, 1969. The methodology employed was the estimation of regression equations to determine the relationship between historical measures of relative price performance and subsequent relative price performances. The results of the empirical testing provide no support for the hypothesis. In practically every regression equation estimated the significance of the findings was almost negligible. The findings inferred that the hypothesis should be rejected. The development of a theoretical framework involving complexity in corporations and information types demonstrated that trends in security price movement are logically possible but only in certain cases. As a consequence of the two purposes of the study two conclusions were arrived at. Firstly, the hypothesis as tested here must be rejected due to an absence of any support for it. Secondly, recognition of the constraining influence of complexity on the security valuation process revealed that certain categories of companies would tend to exhibit a consistency in their securities' relative price performance. Therefore it was suggested that future research in the field of security price behavior should give consideration to disaggregating the sample into categories of complexity.
Multiple magnetic barriers in graphene
Creators: name: Dell'Anna, L.
name: De Martino, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the behavior of charge carriers in graphene in inhomogeneous perpendicular magnetic fields. We consider two types of one-dimensional magnetic profiles, uniform in one direction: a sequence of N magnetic barriers, and a sequence of alternating magnetic barriers and wells. In both cases, we compute the transmission coefficient of the magnetic structure by means of the transfer matrix formalism, and the associated conductance. In the first case the structure becomes increasingly transparent upon increasing N at fixed total magnetic flux. In the second case we find strong wave-vector filtering and resonant effects. We also calculate the band structure of a periodic magnetic superlattice, and find a wave-vector-dependent gap around zero-energy.
description: 9 pages, 18 figures
Comparison of Relativistic Iron Line Models
Creators: name: Svoboda, Jiri
name: Dovciak, Michal
name: Goosmann, Rene W.
name: Karas, Vladimir
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The analysis of the broad iron line profile in the X-ray spectra of active galactic nuclei and black hole X-ray binaries allows us to constrain the spin parameter of the black hole. We compare the constraints on the spin value for two X-ray sources, MCG-6-30-15 and GX 339-4, with a broad iron line using present relativistic line models in XSPEC - LAOR and KYRLINE. The LAOR model has the spin value set to the extremal value a=0.9982, while the KYRLINE model enables direct fitting of the spin parameter. The spin value is constrained mainly by the lower boundary of the broad line, which depends on the inner boundary of the disc emission where the gravitational redshift is maximal. The position of the inner disc boundary is usually identified with the marginally stable orbit which is related to the spin value. In this way the LAOR model can be used to estimate the spin value. We investigate the consistency of the LAOR and KYRLINE models. We find that the spin values evaluated by both models agree within the general uncertainties when applied on the current data. However, the results are apparently distinguishable for higher quality data, such as those simulated for the International X-ray Observatory (IXO) mission. We find that the LAOR model tends to overestimate the spin value and furthermore, it has insufficient resolution which affects the correct determination of the high-energy edge of the broad line.
description: 9 pages, 7 figures
Additional file 1 of Impact of nanophos in agriculture to improve functional bacterial community and crop productivity
Creators: name: Chaudhary, Parul
name: Chaudhary, Anuj
name: Parveen, Heena
name: Rani, Alka
name: Kumar, Govind
name: Kumar, Rajeew
name: Sharma, Anita
Publisher: name: figshare
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Plant Biology

description: Additional file 1 : SM1. Correlation analysis in control and nanophos treated sample after 20, 40 and 60 days. The darker the square is, the greater the P-value is. The values are calculated through Spearman analysis. SM2. Correlation analysis in control and nanophos treated sample after 20, 40 and 60 days. The darker the square is, the greater the P-value is. The values are calculated through Spearman analysis. SM3. Correlation analysis in control and nanophos treated sample after 20, 40 and 60 days. The darker the square is, the greater the P-value is. The values are calculated through Spearman analysis. SM4. Correlation analysis in control and nanophos treated sample after 20, 40 and 60 days. The darker the square is, the greater the P-value is. The values are calculated through Spearman analysis. SM5. Correlation analysis in control and nanophos treated sample after 20, 40 and 60 days. The darker the square is, the greater the P-value is. The values are calculated through Spearman analysis. SM6. Correlation analysis in control and nanophos treated sample after 20, 40 and 60 days. The darker the square is, the greater the P-value is. The values are calculated through Spearman analysis. SM7. Correlation analysis in control and nanophos treated sample after 20, 40 and 60 days. The darker the square is, the greater the P-value is. The values are calculated through Spearman analysis. SM8. Correlation analysis in control and nanophos treated sample after 20, 40 and 60 days. The darker the square is, the greater the P-value is. The values are calculated through Spearman analysis. SM9. Correlation analysis in control and nanophos treated sample after 20, 40 and 60 days. The darker the square is, the greater the P-value is. The values are calculated through Spearman analysis. SM10. SDS-PAGE photograph of soil protein in nanophos treated and control: Lane 1 and 2: nanophos treated soil after 20 and 60 days, Lane 3 and 4: control soil protein after 20 and 60 days of sowing, Lane 5: Prestained protein Ladder (10–180 kDa).
Stabilization and functional properties of La3NiAlMnO9 and La3CoAlMnO9 magnetoelectric triple perovskites
Creators: name: Singh, M. P.
name: Truong, K. D.
name: Jandl, S.
name: Fournier, P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ferromagnetic La3NiAlMnO9 (LNAMO) and La3CoAlMnO9 (LCAMO) triple-perovskite thin films are stabilized in the 750-860 oC temperature range in 100 to 900 mTorr O2 pressure range using pulsed-laser deposition. The LCAMO and LNAMO films exhibit ferromagnetism up to 190 K and 130 K respectively. The structural, optical and magnetic properties of these films demonstrate that the B-site 3d-cations, Al, Mn and Co or Ni ions, are structurally short-range ordered. The strong spin-lattice-polarization coupling in LCAMO is evidenced by the temperature dependence of the dielectric constant and the softening of the phonon frequencies starting in the vicinity of the ferromagnetic-to-paramagnetic phase transition mimicking the behaviours of La2CoMnO6 double perovskite.
description: 11 pages, 4 figs
Incremental specification and analysis in the context of coloured Petri nets
Creators: name: Lewis, GA
Publisher: name: University Of Tasmania
Year: 2023

description: Incremental development involves creating a new specification or implementation by modifying an existing one. This is a commonly used technique for handling complex systems in hardware and software engineering. In fact, incremental development is fundamental to object-orientation, the widely adopted approach to software engineering which uses the mechanism of inheritance. Incremental development and object-orientation have been adopted for all phases of software engineering, from analysis to design and implementation. In the domain of concurrent systems, some researchers constrain incremental development by proposing requirements that must hold between the original and incrementally modified components. Such proposals are commonly based on a process algebra correctness relation, or require that a bisimulation relation hold between the original and modified components. In Part I of this thesis we provide background on constraining incremental change and survey several existing proposals. We identify a number of problems typical of these proposals which commonly limit their practical use. We then present Incremental Coloured Petri Net Modelling which is aimed at addressing these problems. The main contribution of this part of the thesis is the identification of these problems and the assessment of the practical applicability of Incremental Coloured Petri Net Modelling. This assessment is made by examining several case studies published in the literature. One of the primary benefits of using a formal method such as Coloured Petri Nets (CPNs) is its support for formal reasoning. State space analysis is a popular formal reasoning technique, but it is subject to state space explosion, where its application to real world models leads to unmanageably large state spaces. In Part II of this thesis we first review existing approaches for alleviating the state space explosion problem. The main contribution of Part II is a new approach, which we call Incremental Analysis. Incremental Analysis involves algorithms which take advantage of Incremental CPN Modelling in attempting to alleviate the state space explosion problem. The thesis considers the implementation issues for these algorithms, identifies the situations under which they can be expected to lead to performance improvement, and presents case studies which demonstrate the value of the technique.
Global classification of isolated singularities in dimensions $(4,3)$ and $(8,5)$
Creators: name: Funar, Louis
Publisher: name: arXiv
Year: 2009
Subjects: subject: Geometric Topology (math.GT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 57R45, 58K05, 57R60, 57R70

description: We characterize those closed $2k$-manifolds admitting smooth maps into $(k+1)$-manifolds with only finitely many critical points, for $k\in\{2,4\}$. We compute then the minimal number of critical points of such smooth maps for $k=2$ and, under some fundamental group restrictions, also for $k=4$. The main ingredients are King's local classification of isolated singularities, decomposition theory, low dimensional cobordisms of spherical fibrations and 3-manifolds topology.
description: 31p, revised version, Ann. Scuola Norm. Sup. Pisa Cl. Sci., to appear
Breakdown of The Excess Entropy Scaling for the Systems with Thermodynamic Anomalies
Creators: name: Fomin, Yu. D.
name: Gribova, N. V.
name: Ryzhov, V. N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: This articles presents a simulation study of the applicability of the Rosenfeld entropy scaling to the systems which can not be approximated by effective hard spheres. Three systems are studied: Herzian spheres, Gauss Core Model and soft repulsive shoulder potential. These systems demonstrate the diffusion anomalies at low temperatures: the diffusion increases with increasing density or pressure. It is shown that for the first two systems which belong to the class of bounded potentials the Rosenfeld scaling formula is valid only in the infinite temperature limit where there are no anomalies. For the soft repulsive shoulder the scaling formula is valid already at sufficiently low temperatures, however, out of the anomaly range.
description: 11 pages, 14 figures
Women and writing : a comparative study of some texts by Miles Franklin and Higuchi Ichiyo
Creators: name: Iida, Natsuko
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis examines textual comparisons between Miles Franklin (1879-1954) and Higuchi Ichiyo (1872-96). This is an interdisciplinary project that applies the methodologies of comparative literature, feminist literary studies, and comparative studies between Australia and Japan. My methodology depends particularly upon feminist approaches to modern women's literature and an international tradition of women's writing. Thus, feminisms such as poststructuralist and postcolonialism are not applied here because they stress a notion of difference, broadly defined, between women through arguments based in identity politics. Likewise, differentiating Franklin and Ichiyo's, Australia and Japan, as the Occident and the Orient is not to my purpose. Translation is a major medium or resource in comparative literary studies. My Brilliant Career is available translated into Japanese while some of Ichiyo's texts are translated by Robert Lyons Danly. However, I study the original texts and quote both in English and Japanese, avoiding some of the restrictions and cultural reshaping of translation. In the Introduction, I look into Australia's bush myth and Japan's \ie\" system as Franklin's and Ichiyo's cultural backgrounds. These paradigms which also operate as ideologies are powerfully similar in their significance as invented cultural and national traditions. In my reading of Franklin's and Ichiyo's respective texts as both individual texts and intertexts in each chapter I focus on commonalities in their concerns about femininity sexual politics and gender issues in relation to their cultural and political contexts. The primary focus in my thesis is their shared use of metaphor. I discuss bird/s in Chapter two as a metaphor for women. In My Brilliant Career (1901) My Career Goes Bung (1946) and Childhood at Brindabella (1963) Franklin's bird imagery signifies various situations and experiences of the women characters. Ichiyo's bird imagery in the diaries (1912) and Wakarejimo (1892) together with its cultural and social signification implies women's suppressed sexuality. Chapter three investigates images of gardens. In My Brilliant Career and Childhood at Brindabella representations of gardens are the symbolisation of femininity and female power. Images of gardens in Ichiyo's diaries Yamiyo (1894) Utsusemi (1895) and Warekara (1896) symbolise not only the women characters' powerlessness but also their resistance and self-understanding. My investigation of metaphor reveals Franklin's and Ichiyo's rejection of patriarchal ideologies and confirms their shared project of speaking for women through their writings. Thus these writers participate in an on-going and international tradition of feminist literature. The particular contribution of this thesis is to make Franklin's and Ichiyo's shared project visible through comparative literary studies."
A study of the relationships between money financial markets and economic growth
Creators: name: Lang, Eva Maria
Publisher: name: University of British Columbia
Year: 2011

description: This study is concerned with the causal relationship between money, finance and growth. In the first chapter, some of the empirical research on the subject is discussed. It establishes evidence of a positive dependence between real and financial growth. The findings do not, however, explain the direction of causality. In the second and third chapters, the cause-effect relationship is therefore analyzed in theoretical terms. The theory is based on a barter system into which money, and subsequently direct and indirect financial markets, are introduced. The objective is to determine whether these innovations are likely to induce increases in the equilibrium growth rate of an economy. If either or both increase growth it follows that money and/or finance is causal. At the same time, these markets would acquire great practical significance for the development process. The analysis refutes the hypothesis of causality from money and financial markets to growth. Neither steady state growth rates can be shown to increase, nor savings rates. The sole significant effect of both innovations appears to be a rise in income-per-capita levels but not in their rates of growth. The concluding chapter uses the results of the theory for deriving policy recommendations for Thailand. At first, policy objectives are defined and their implications for the optimal savings ratio. Actual Thai data are then compared with the optimum condition and it is found that past performance may satisfy long-term savings objectives. The study concludes by estimating the relative size of output, due to inefficiency in the present structure and performance of the financial sector in Thailand. Existing inefficiencies are shown to be significant, thus necessitating policy changes.
Additional file 2 of Binding affinity prediction for protein–ligand complex using deep attention mechanism based on intermolecular interactions
Creators: name: Seo, Sangmin
name: Choi, Jonghwan
name: Park, Sanghyun
name: Ahn, Jaegyoon
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Additional file 2: Figure S1. Average ranking comparison results for highest pairwise-chains TM-Score. Figure S2 Overview of BAPA.
Additional file 1 of Measuring the effects of nurse practitioner (NP)-led care on depression and anxiety levels in people with multiple sclerosis: a study protocol for a randomized controlled trial
Creators: name: Smyth, Penelope
name: Watson, Kaitlyn E.
name: Tsuyuki, Ross T.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. SPIRIT checklist.
MURNS: Mobile Unmanned Radio Network System
Creators: name: Deniz Özmalkoç
name: Nehir Tanış
name: Egehan Ongun Özkula
Publisher: name: TA-Hermes
Year: 2023
Subjects: radio
RF technologies

description: Mobile Unmanned Radio Network System

MURNS is an interconnected network of radio repeaters aimed to decrease costs as much as possible. System is designed to be modular and can be used in various different applications.

 

Example Uses

Increased Range

 When extended is necessary, system can be configured in a line configuration where the repeaters are chained to create a long line of coverage.

Wide Area Coverage

 When communication in a wide area is needed system can be configured to act as a network where each repeater is connected to two other repeaters creating redundancy in the system. If one repeater fails, users can switch to other repeaters in the area.

 

 

Setup Instructions:

You need to get yourself two radios with VFO and VOX.

You need to make a cable to connect the audio outputs to one another.

You need to configure the frequencies 

We recommend using highly different frequencies to avoid unwanted noise if your antennae is too close.

 We used transmitting offset of *`+007.600MHz`* for UHF and *`+000.600MHz`* for VHF

- You can set up CTCSS if you use multiple repeaters at similar frequencies.

You need to fine tune the volumes for the VOX to work properly. 

 You can alternatively use a switch to trigger PTT but we have not tried it yet. 

After testing the system you are good to go.

 

Known Issues & Future Improvements

If you find any problems with the repeaters please feel free to submit an issue on the GitHub

 

Two way audio connection causing endless PTT

 

Adding transmitters for digital modes and publicly available frequencies.

Adding fully autonomous vehicles to adjust positions on the go.