cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Alone but not lonely: Observational evidence that binary interaction is always required to form hot subdwarf stars
Creators: name: Pelisoli, Ingrid
name: Vos, Joris
name: Geier, Stephan
name: Schaffenroth, Veronika
name: Baran, Andrzej S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Hot subdwarfs are core-helium burning stars that show lower masses and higher temperatures than canonical horizontal branch stars. They are believed to be formed when a red giant suffers an extreme mass-loss episode. Binary interaction is suggested to be the main formation channel, but the high fraction of apparently single hot subdwarfs (up to 30%) has prompted single star formation scenarios to be proposed. If such formation scenarios without interaction were possible, that would also imply the existence of hot subdwarfs in wide binaries that have undergone no interaction. We probe the existence of these systems by analysing light curves from the Transiting Exoplanet Survey Satellite (TESS) for all known hot subdwarfs with a main sequence wide binary companion, and by searching for common proper motion pairs to spectroscopically confirmed hot subdwarfs. We find that (i) the companions in composite hot subdwarfs show short rotation periods when compared to field main sequence stars. They display a triangular-shaped distribution with a peak around 2.5 days, similar to what is observed for young open clusters. This observed distribution of rotation rates for the companions in known wide hot subdwarf binaries provides evidence of previous interaction causing spin-up. We also report (ii) a shortage of hot subdwarfs with candidate common proper motion companions, considering the frequency of such systems among progenitors. We identify only 16 candidates after probing 2938 hot subdwarfs with good astrometry. Out of those, at least six seem to be hierarchical triple systems, in which the hot subdwarf is part of an inner binary. These results suggest that binary interaction is always required for the formation of hot subdwarfs.
description: 17 pages, 11 figures, 5 tables. Accepted for publication in A&A
Additional file 1 of Targeted next-generation sequencing identifies the disruption of the SHANK3 and RYR2 genes in a patient carrying a de novo t(1;22)(q43;q13.3) associated with signs of Phelan-McDermid syndrome
Creators: name: Bonaglia, Maria Clara
name: Bertuzzo, Sara
name: Ciaschini, Anna Maria
name: Discepoli, Giancarlo
name: Castiglia, Lucia
name: Romaniello, Romina
name: Orsetta Zuffardi
name: Fichera, Marco
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Predicted fusion transcripts. Predicted in-frame fusion genes at translocation junctions to analyze whether the reading frames were conserved by the translocation, as assessed by the ExPASy’s Translation Tool (http://web.expasy.org/translate/) . Open reading frames are highlighted in red while dashed represent premature stop codons. A) Fusion transcript RYR2 (NM_001035) - SHANK3 (NM_033517) on derivative chromosome 1 and B) Fusion transcript SHANK3 - RYR2 on derivative chromosome 22.
Additional file 1 of Cryptococcal antigenemia and its predictors among HIV infected patients in resource limited settings: a systematic review
Creators: name: Awoke Derbie
name: Mekonnen, Daniel
name: Yimtubezinash Woldeamanuel
name: Tamrat Abebe
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Cancer
subject: 60506 Virology
subject: FOS: Biological sciences

description: Additional file 1 Supplement 1: Search Strategy
Is Futures Market Mitigating Price Risk: An Exploration of Wheat and Maize Market
Creators: name: Singh, N.P.
name: Kumar, Ranjit
name: Singh, R.P.
name: Jain, Praveen Kumar
name: Singh, N.P.
name: Kumar, Ranjit
name: Singh, R.P.
name: Jain, Praveen Kumar
Publisher: name: Unknown
Year: 2005
Subjects: Agricultural and Food Policy

description: Instability of commodity prices has always been a major concern of the producers as well as the consumers in an agriculture-dominated country like India. Farmers in a bid to avert the price risk often tend to go for distress sale and thereby reduce the potential returns. In order to cope up with this problem, futures trading has emerged as a viable option for providing a greater degree of assurance on the price front. Thus, futures markets serve as a risk -shifting function. In the present study, an attempt has been made to look into the mechanism of movement of spot and futures prices for two important food crops in Indian agriculture. The Augmented Dickey Fuller (ADF) test has been used for both the crops to check the stationarity of the time series data. Most of the series have been observed to follow the stationary pattern at the first difference. The cointegration test has been attempted to find out whether there exists a longrun relationship between spot and futures prices of various contract months for maize and wheat crops. However, there exists a short run disequilibrium between these two. It has been observed that the futures contract behave in an expected manner and there exists a mechanism for long-run equilibrium in the maize as well as wheat crops. This phenomenon of price convergence for both maize and wheat crops clearly states that the farmers are mitigating price risk as spot prices and future prices converges.
Developing an arts-integrated reading comprehension program for less proficient grade 3 and 4 students
Creators: name: Winters, Kari-Lynn
Publisher: name: University of British Columbia
Year: 2009

description: This study investigates the efficacy of using arts integrated programming as a way to teach and evaluate global reading comprehension strategies among less proficient readers. The project was undertaken with twelve less proficient third and fourth grade readers in a West -Vancouver suburban public school for a total o f seven months. The study consisted of three phases. First the students were nominated, observed and interviewed. Pre-program progress interviews, which included arts-integrated evaluations, were also conducted. In the second phase, students were taught five reading comprehension strategies. Students learned about and practiced these strategies through nine arts-integrated lessons. Additionally, informal interviews with the two teachers and post-program interviews took place during this second phase. The third phase concluded by performing what had been learned throughout the sessions, conducting group delayed-program progress interviews, and completing student reflection sheets. The research findings revealed that all twelve of the less proficient students in the study generally improved their reading skills. When given opportunities to construct and express their understandings through arts-integration, they seemed to become more fluent decoders and appeared to strengthen their employment of global/interpretive comprehension strategies when reading printed texts.
From Einstein's 1905 Postulates to the Geometry of Flat Space-Time
Creators: name: Mermin, N. David
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Classical Physics (physics.class-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Minkowski diagrams in 1+1 dimensional flat space-time are given a strictly geometric derivation, directly from two gedanken experiments incorporating the principle of the constancy of the velocity of light and the principle of (special) relativity. Rectangles of photon trajectories play a central role in determining the simultaneity convention and in establishing the invariance of the interval.
description: A few typos and some obvious misstatements have been repaired. A reference has been added. 18 pages, 12 figures. To appear in Annalen der Physik (Leipzig) 14 (2005) [1-3], Special Topic Issue. Albert Einstein: His Work and His Impact
The Stellar Mass Fundamental Plane: The virial relation and a very thin plane for slow-rotators
Creators: name: Bernardi, M.
name: Sanchez, H. Domínguez
name: Margalef-Bentabol, B.
name: Nikakhtar, F.
name: Sheth, R. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Early-type galaxies -- slow and fast rotating ellipticals (E-SRs and E-FRs) and S0s/lenticulars -- define a Fundamental Plane (FP) in the space of half-light radius $R_e$, enclosed surface brightness $I_e$ and velocity dispersion $σ_e$. Since $I_e$ and $σ_e$ are distance-independent measurements, the thickness of the FP is often expressed in terms of the accuracy with which $I_e$ and $σ_e$ can be used to estimate sizes $R_e$. We show that: 1) The thickness of the FP depends strongly on morphology. If the sample only includes E-SRs, then the observed scatter in $R_e$ is $\sim 16\%$, of which only $\sim 9\%$ is intrinsic. Removing galaxies with $M_*<10^{11}M_\odot$ further reduces the observed scatter to $\sim 13\%$ ($\sim 4\%$ intrinsic). The observed scatter increases to the $\sim 25\%$ usually quoted in the literature if E-FRs and S0s are added. If the FP is defined using the eigenvectors of the covariance matrix of the observables, then the E-SRs again define an exceptionally thin FP, with intrinsic scatter of only $5\%$ orthogonal to the plane. 2) The structure within the FP is most easily understood as arising from the fact that $I_e$ and $σ_e$ are nearly independent, whereas the $R_e-I_e$ and $R_e-σ_e$ correlations are nearly equal and opposite. 3) If the coefficients of the FP differ from those associated with the virial theorem the plane is said to be `tilted'. If we multiply $I_e$ by the global stellar mass-to-light ratio $M_*/L$ and we account for non-homology across the population by using Sérsic photometry, then the resulting stellar mass FP is less tilted. Accounting self-consistently for $M_*/L$ gradients will change the tilt. The tilt we currently see suggests that the efficiency of turning baryons into stars increases and/or the dark matter fraction decreases as stellar surface brightness increases.
description: 13 pages, 9 figures, 3 tables, accepted for publication in MNRAS
Contract Farming in Potato Production: An Alternative for Managing Risk and Uncertainty
Creators: name: Tripathi, R.S.
name: Singh, Ram
name: Singh, Sube
name: Tripathi, R.S.
name: Singh, Ram
name: Singh, Sube
Publisher: name: Unknown
Year: 2005
Subjects: Agricultural and Food Policy

description: The cost of potato cultivation has been found 17 to 24 per cent higher under contract farming over various costs than under non-contract system, mainly due to high investments on seeds, fertilizers and machine power. Yield has been found 255.78 quintals per ha in the contract farms, which is 8.84 per cent higher over the potato yield obtained from the non-contract farms. Gross income has been Rs 99753 per ha in the contract farms as against Rs 41572 per ha in non-contract system. The sale price of potato has been found much higher (Rs 390/q) for contract than non-contract farms (Rs 177 /q). The net return over operational cost (cost ‘A1’) has been found as Rs 11882 per ha in non-contract farms, which increased more than five-times under contract farming system, it being Rs 62982 per ha. Similarly, the net return has been found five-and-a-half times more in contract than non-contract system over cost C1 (without rental value of the land). The net return over cost C2 has been observed as Rs 51866 per ha for contract farms and only Rs 800 per ha under non-contract system. Benefit-cost ratio on various costs has been found to vary from 1.40 to 1.02 for without contract and from 2.71 and 2.08 for contract farming. The impact of contract farming has been quite visible and remarkably favourable on yield and profitability of potato production at the existing pattern of resource-use and production technology prevalent in the Haryana farming system. The regression analysis has indicated significant influence of manure and fertilizers and human labour on the return of potatoes grown under contract farming situation. MVP-MFC ratios of plant protection, manure-fertilizers and human labour have been found much higher, indicating tremendous scope to increase the profitability in potato production under contract farming situation whereas in the case of non-contract system, irrigation and plant protection have shown sufficient scope to raise the crop income. The yield uncertainty has been less in contract than non-contract potato production. There has been no price uncertainty in the contract farming of potato whereas in the non-contract system, it exits to a large extent due variations in the price of potatoes sold in the market. These findings have clearly underlined the superiority of contract farming over non-contract farming system in potato production.
Climatic Risks, Rice Production Losses and Risk Coping Strategies: A Case Study of a Rainfed Village in Coastal Orissa
Creators: name: Samal, Parshuram
name: Pandey, Sushil
name: Samal, Parshuram
name: Pandey, Sushil
Publisher: name: Unknown
Year: 2005
Subjects: Agricultural and Food Policy

description: Abiotic stresses observed in the village Kaudikol , district Cuttack, Orissa have been recorded for 8 years and analysed. Survey data collected for four years (1996-97 to 1999-2000) from the farmers of this village have been analysed to find out their livelihood system, importance of rice in this system and the coping mechanisms followed by them in case of loss to the kharif rice crop. The abiotic stresses have been found to cause flood / submergence to different degrees in 5 years, drought in 3 years and cyclone in one year out of the total 8 years, causing production losses to rice. The maximum losses to rice crop have been observed during 1999 kharif season due to cyclone. It has been found that rice is the major crop during the kharif season, covering up to 79 per cent of the total cultivated area with contribution of 21 per cent to total income. Service has been found to be the most important source of income, followed by rice and business. The average annual income of the farmers has been noticed to vary from Rs 23,329 for marginal farmers to Rs 84,072 for large farmers over the period 1997-98 to 1999-2000. Rice has been found to be the major source of income for medium than other categories of farmers. For large farmers, salaried job has been observed as the most important source of income. The marginal and small farmers have been found to compensate their rice income loss from sources like wage earnings, jute and rabi/ summer rice. Through non-farm income and crop diversification, the farmers have been able to reduce the effect of rice income losses to some extent. Therefore, more non-farm employment opportunities should be created in this area to increase income and living standard of the farmers. Development of submergence-tolerant varieties with high-yield is the priority area for rice research in this area. There is also a need to introduce crop insurance scheme for rice crop in this area.
Polynomial invariants on matrices and partition, Brauer algebra
Creators: name: Kim, Myungho
name: Koo, Doyun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Rings and Algebras (math.RA)
subject: Combinatorics (math.CO)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 13A50, 20G43, 05A18

description: We identify the dimension of the centralizer of the symmetric group $\mathfrak{S}_d$ in the partition algebra $\mathcal{A}_d(δ)$ and in the Brauer algebra $\mathcal{B}_d(δ)$ with the number of multidigraphs with $d$ arrows and the number of disjoint union of directed cycles with $d$ arrows, respectively. Using Schur-Weyl duality as a fundamental theory, we conclude that each centralizer is related with the $G$-invariant space $P^d(M_n(\mathbf{k}))^G$ of degree $d$ homogeneous polynomials on $n \times n$ matrices, where $G$ is the orthogonal group and the group of permutation matrices, respectively. Our approach gives a uniform way to show that the dimensions of $P^d(M_n(\mathbf{k}))^G$ are stable for sufficiently large $n$.
description: 20 pages, changes of wrong conditions, typos, and grammar. Brauer algebras. Journal of Algebra (2021)
Flatbands and Mechanical Deformation Effects in the Moiré Superlattice of MoS$_2$-WSe$_2$ Heterobilayers
Creators: name: Waters, Dacen
name: Nie, Yifan
name: Lüpke, Felix
name: Pan, Yi
name: Fölsch, Stefan
name: Lin, Yu-Chuan
name: Jariwala, Bhakti
name: Zhang, Kehao
name: Wang, Chong
name: Lv, Hongyan
name: Cho, Kyeongjae
name: Xiao, Di
name: Robinson, Joshua A.
name: Feenstra, Randall M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: It has recently been shown that quantum-confined states can appear in epitaxially grown van der Waals material heterobilayers without a rotational misalignment ($θ=0^\circ$), associated with flat bands in the Brillouin zone of the moiré pattern formed due to the lattice mismatch of the two layers. Peaks in the local density of states and confinement in a MoS$_2$/WSe$_2$ system was qualitatively described only considering local stacking arrangements, which cause band edge energies to vary spatially. In this work, we report the presence of large in-plane strain variation across the moiré unit cell of a $θ=0^\circ$ MoS$_2$/WSe$_2$ heterobilayer, and show that inclusion of strain variation and out-of-plane displacement in density functional theory calculations greatly improves their agreement with the experimental data. We further explore the role of twist-angle by showing experimental data for a twisted MoS$_2$/WSe$_2$ heterobilayer structure with twist angle of $θ=15^\circ$, that exhibits a moiré pattern but no confinement.
description: 13 pages, 6 figures in main text. Supporting information included with 13 pages, 8 figures, and 2 tables
Non-minimal coupling for the gravitational and electromagnetic fields: A general system of equations
Creators: name: Balakin, Alexander B.
name: Lemos, José P. S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We establish a new self-consistent system of equations for the gravitational and electromagnetic fields. The procedure is based on a non-minimal non-linear extension of the standard Einstein-Hilbert-Maxwell action. General properties of a three-parameter family of non-minimal linear models are discussed. In addition, we show explicitly, that a static spherically symmetric charged object can be described by a non-minimal model, second order in the derivatives of the metric, when the susceptibility tensor is proportional to the double-dual Riemann tensor
description: 15 pages
Decomposition of Economic Efficiency under Risk into Technical and Allocative Risks: A Study on Fish Production in South Tripura District, Tripura, India
Creators: name: Singh, Kehar
name: Singh, Kehar
Publisher: name: Unknown
Year: 2005
Subjects: Agricultural and Food Policy

description: The risk arises from inadequate knowledge about best practice techniques (technical risk) and markets/prices (allocative risk). On the basis of this assumption, the economic inefficiency has been decomposed into inefficiencies due to technical and allocative risks. The study, conducted during 2004-05, is based on the primary cross-sectional data collected from six villages from three rural development blocks of South Tripura district in the Tripura state of India, with 239 farms as the sample. More than 96 per cent of the difference between observed and frontier output has been found primarily due to factors which are under the control of farms, i.e. due to technical inefficiencies. The mean economic efficiency under risk has been estimated at the level of 34.11 per cent. The economic inefficiency due to technical risk and allocative risk has been found as 20.86 and 45.03 per cent, respectively of the existing economic inefficiency. The variations in EEar (allocative risks) have been found lower than those in EEtr (technical risks). A negative correlation has been observed between EEtr and EEar. The amount of EEtr has been found to be lower than that of EEar.
Risk of Financing Agriculture in the North-Eastern Hill Region of India with Special Reference to Meghalaya
Creators: name: Mandal, Subhasis
name: Datta, K.K.
name: Mohanty, Suchitra
name: Mahapatra, B.K.
name: Mandal, Subhasis
name: Datta, K.K.
name: Mohanty, Suchitra
name: Mahapatra, B.K.
Publisher: name: Unknown
Year: 2005
Subjects: Agricultural and Food Policy

description: The study pertains to the economic issues of risk and uncertainties associated with financing hill agriculture from the twin angles of risk of farmers to utilize the credit and of bankers to disburse the agricultural loan. The issues discussed are: first, why the financial institutions are reluctant to lend agricultural advances? Second, whether the farm income or rate of return on equity and non-equity capital is sufficient to repay the loan? Third, what are the major sources and the magnitude of risks and uncertainties associated with hill farming? Fourth, nature of agricultural marketing situation and how it affects the farm income in this region and finally, the possibilities have been explored, where and how the agricultural lending can be stepped up with positive economic return? The study has revealed that agricultural farming in north-east region of India is severely constrained by high risk and uncertainty arising out from various factors. Under the prevailing condition the expectation of a steady and assured income from agriculture is quite limited; hence, the hill farming fails to attract considerable private investment. The prevailing risk and uncertainty situation compels them to operate at low-input and low-output subsistence farming with low volume of marketable surplus. It has been found that the financial institutions face difficulty in financing the hill agriculture in view of low repayment performance and increasing non-performing assets for agricultural loan. Also, the absence/poor performance of crop insurance scheme (presently only Meghalaya and Sikkim are implementing the National Agricultural Insurance Scheme) increases the risk of hill farming considerably. Non-availability of reliable agricultural database (time series as well as cross section) on area, production and yield, cost of cultivation has been found the major impediments for implementing the crop insurance scheme efficiently. The agricultural situation in this region is highly heterogeneous; variability is extremely high even within a few kilometres of area. It has been suggested that suitable methodologies followed by a wide database be developed to estimate the yield and cost of production of horticultural crops which will help policymakers to formulate right policy to protect the interest of farmers as well as smooth functioning of all stakeholders — entrepreneurs, private investors, bankers and crop insurance implementing agencies.
Integrating Existing Software Toolkits into VO System
Creators: name: Cui, Chenzhou
name: Zhao, Yongheng
name: Wang, Xiaoqian
name: Sang, Jian
name: Luo, Ze
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Virtual Observatory (VO) is a collection of interoperating data archives and software tools. Taking advantages of the latest information technologies, it aims to provide a data-intensively online research environment for astronomers all around the world. A large number of high-qualified astronomical software packages and libraries are powerful and easy of use, and have been widely used by astronomers for many years. Integrating those toolkits into the VO system is a necessary and important task for the VO developers. VO architecture greatly depends on Grid and Web services, consequently the general VO integration route is "Java Ready - Grid Ready - VO Ready". In the paper, we discuss the importance of VO integration for existing toolkits and discuss the possible solutions. We introduce two efforts in the field from China-VO project, "gImageMagick" and " Galactic abundance gradients statistical research under grid environment". We also discuss what additional work should be done to convert Grid service to VO service.
description: 9 pages, 3 figures, will be published in SPIE 2004 conference proceedings
Regression with reject option and application to kNN
Creators: name: Denis, Christophe
name: Hebiri, Mohamed
name: Zaoui, Ahmed
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We investigate the problem of regression where one is allowed to abstain from predicting. We refer to this framework as regression with reject option as an extension of classification with reject option. In this context, we focus on the case where the rejection rate is fixed and derive the optimal rule which relies on thresholding the conditional variance function. We provide a semi-supervised estimation procedure of the optimal rule involving two datasets: a first labeled dataset is used to estimate both regression function and conditional variance function while a second unlabeled dataset is exploited to calibrate the desired rejection rate. The resulting predictor with reject option is shown to be almost as good as the optimal predictor with reject option both in terms of risk and rejection rate. We additionally apply our methodology with kNN algorithm and establish rates of convergence for the resulting kNN predictor under mild conditions. Finally, a numerical study is performed to illustrate the benefit of using the proposed procedure.
Recent developments of surface light scattering as a tool for optical-rheology of polymer monolayers
Creators: name: Cicuta, Pietro
name: Hopkinson, Ian
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Surface Quasi-Elastic Light Scattering (SQELS) is an application of dynamic light scattering to measure the dynamics of the thermal roughness of liquid surfaces. An analysis of the spectrum of thermal fluctuations provides information on surface properties like tension and elasticity. In this work we will focus particularly on its use to study polymer or polymer-like Langmuir monolayers. We review work in this area and give an up-to-date overview of the method. Important advances have very recently taken place in the theoretical understanding of this problem, and this has allowed improvements in the analysis of the experimental data. A practical method to estimate the region of physical parameters that can be reliably measured is presented.
description: 23 pages
Classification of the Real Roots of the Quartic Equation and their Pythagorean Tunes
Creators: name: Prodanov, Emil M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics

description: Presented is a two-tier analysis of the location of the real roots of the general quartic equation $x^4 + ax^3 + bx^2 + cx + d = 0$ with real coefficients and the classification of the roots in terms of $a$, $b$, $c$, and $d$, without using any numerical approximations. Associated with the general quartic, there is a number of subsidiary quadratic equations (resolvent quadratic equations) whose roots allow this systematization as well as the determination of the bounds of the individual roots of the quartic. In many cases the root isolation intervals are found. The second tier of the analysis uses two subsidiary cubic equations (auxiliary cubic equations) and solving these, together with some of the resolvent quadratic equations, allows the full classification of the roots of the general quartic and also the determination of the isolation interval of each root. These isolation intervals involve the stationary points of the quartic (among others) and, by solving some of the resolvent quadratic equations, the isolation intervals of the stationary points of the quartic are also determined. Each possible case has been carefully studied and illustrated with a detailed figure containing a description of its specific characteristics, analysis based on solving cubic equations and analysis based on solving quadratic equations only. As the analysis of the roots of the quartic equation is done by studying the intersection points of the "sub-quartic" $x^4 + ax^3 + bx^2$ with a set of suitable parallel lines, a beautiful Pythagorean analogy can be found between these intersection points and the set of parallel lines on one hand and the musical notes and the staves representing different musical pitches on the other: each particular case of the quartic equation has its own short tune.
Additional file 2 of Leftover opioids following adult surgical procedures: a systematic review and meta-analysis
Creators: name: Schirle, Lori
name: Stone, Amanda L.
name: Morris, Matthew C.
name: Osmundson, Sarah S.
name: Walker, Philip D.
name: Dietrich, Mary S.
name: Bruehl, Stephen
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2. Effect sizes for mean proportions of opioids leftover.
The quest to negotiate equitable civic engagement : response of Toronto’s Sri Lankan Tamil community to social development planning in Canada’s largest multicultural metropolis
Creators: name: Dickout, Leslie
Publisher: name: University of British Columbia
Year: 2009

description: In this study I examine the connections between urban governance, social planning, civic participation and engagement, and the quest for full, active, democratic citizenship by marginalized groups, particularly immigrant communities living in Canada's multicultural cities. The notion of 'inclusive planning' within an ethno-culturally diverse urban context is explored through the examination of both the City of Toronto's approach to social development planning and the response of one newcomer community, the Sri Lankan Tamils, particularly through the work of the newly formed national organization, the Canadian Tamil Congress. My study is guided by five research questions that explore the roles and responsibilities of government, planners and communities in this context. I conclude by presenting a number of recommendations related to how planners can work toward a democratic renewal of planning in multicultural cities such as Toronto through the support and development of planning policies and practices that recognize equitable engagement, communication, negotiation, and partnership as guiding principles. These include a wide range of ideas related to identifying and challenging the forces of exclusion identified within my research, in order to construct a form of citizenship that is grounded in ongoing negotiation between the state and its citizenry.
Additional file 1 of Leftover opioids following adult surgical procedures: a systematic review and meta-analysis
Creators: name: Schirle, Lori
name: Stone, Amanda L.
name: Morris, Matthew C.
name: Osmundson, Sarah S.
name: Walker, Philip D.
name: Dietrich, Mary S.
name: Bruehl, Stephen
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Supplemental documentation.
Quantum Self-Consistent Ab-Initio Lattice Dynamics
Creators: name: van Roekeghem, Ambroise
name: Carrete, Jesús
name: Mingo, Natalio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Quantum Self-Consistent Ab-Initio Lattice Dynamics package (QSCAILD) is a python library that computes temperature-dependent effective 2nd and 3rd order interatomic force constants in crystals, including anharmonic effects. QSCAILD's approach is based on the quantum statistics of a harmonic model. The program requires the forces acting on displaced atoms of a solid as an input, which can be obtained from an external code based on density functional theory, or any other calculator. This article describes QSCAILD's implementation, clarifies its connections to other methods, and illustrates its use in the case of the SrTiO3 cubic perovskite structure.
description: Code available at https://github.com/vanroeke/qscaild
Pion Photoproduction Amplitude Relations in the 1/N_c Expansion
Creators: name: Cohen, Thomas D.
name: Dakin, Daniel C.
name: Lebed, Richard F.
name: Martin, Daniel R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive expressions for pion photoproduction amplitudes in the 1/N_c expansion of QCD, and obtain linear relations directly from this expansion that relate electromagnetic multipole amplitudes at all energies. The leading-order relations in 1/N_c compare favorably with available data, while the next-to-leading order relations seem to provide only a small improvement. However, when resonance parameters are compared directly, the agreement at O(1/N_c) or O(1/N_c^2) is impressive.
description: 19 pages, ReVTeX, 50 eps files combine into 5 compound figures
Are consumers willing to pay more for biodegradable containers than for plastic ones? Evidence from hypothetical conjoint analysis and nonhypothetical experimental auctions
Creators: name: Yue, Chengyan
name: Hall, Charles R.
name: Behe, Bridget K.
name: Campbell, Benjamin L.
name: Dennis, Jennifer H.
name: Lopez, Roberto G.
name: Yue, Chengyan
name: Hall, Charles R.
name: Behe, Bridget K.
name: Campbell, Benjamin L.
name: Dennis, Jennifer H.
name: Lopez, Roberto G.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: biodegradable
subject: willingness to pay
subject: marketing
subject: carbon footprint
subject: waste composition
subject: green industry
subject: nursery crops
subject: floriculture crops

description: This study utilized and compared hypothetical conjoint analysis and non-hypothetical experimental auctions to elicit floral customers' WTP for biodegradable plant containers. The results of the study show that participants were willing to pay a price premium for biodegradable containers but the premium is not the same for different types of containers. This paper also shows the mixed ordered probit model generates more accurate results when analyzing the conjoint analysis internet survey data than the ordered probit model.
Supersymmetric Quantum Hall Effect on Fuzzy Supersphere
Creators: name: Hasebe, Kazuki
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Supersymmetric quantum Hall liquids are constructed on a supersphere in a supermonopole background. We derive a supersymmetric generalization of the Laughlin wavefunction, which is a ground state of a hard-core $OSp(1|2)$ invariant Hamiltonian. We also present excited topological objects, which are fractionally charged deficits made by super Hall currents. Several relations between quantum Hall systems and their supersymmetric extensions are discussed.
description: Typos corrected, 5 pages, to be published in PRL
The Role of Trust and Risk Aversion in Farmers' Used Machinery Transactions
Creators: name: Roe, Brian E.
name: Batte, Marvin T.
name: Diekmann, Florian
name: Roe, Brian E.
name: Batte, Marvin T.
name: Diekmann, Florian
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Industrial Organization
subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies
subject: Risk and Uncertainty
subject: internet
subject: agricultural marketing
subject: durable inputs
subject: survey
subject: risk aversion
subject: trust

description: Results of a nationally representative survey of US farmers link previously validated survey measures of risk aversion and interpersonal trust to farmers’ intended use of online venues for transacting used equipment. Other factors affecting online purchase propensity includes the quality of farmers’ relationships with local equipment dealerships. Understanding the factors that impact farmers’ use of internet market venues is crucial as rural internet penetration deepens, farm equipment needs grow more specialized and local offline markets thin. These results may also help explain past observations of severe discounting of used farm equipment sold in online venues.
Confined spin waves reveal an assembly of nanosize domains in ferromagnetic La(1-x)CaxMnO3 (x=0.17,0.2)
Creators: name: Hennion, M.
name: Moussa, F.
name: Lehouelleur, P.
name: Wang, F.
name: Ivanov, A.
name: Mukovskii, Y. M.
name: Shulyatev, D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report a study of spin-waves in ferromagnetic La$_{1-x}$Ca$_{x}$MnO$_3$, at concentrations x=0.17 and x=0.2 very close to the metallic transition (x=0.225). Below T$_C$, in the quasi-metallic state (T=150K), nearly q-independent energy levels are observed. They are characteristic of standing spin waves confined into finite-size ferromagnetic domains, defined in {\bf a, b) plane for x=0.17 and in all q-directions for x=0.2. They allow an estimation of the domain size, a few lattice spacings, and of the magnetic coupling constants inside the domains. These constants, anisotropic, are typical of an orbital-ordered state, allowing to characterize the domains as "hole-poor". The precursor state of the CMR metallic phase appears, therefore, as an assembly of small orbital-ordered domains.
description: 4 pages, 5 figures
Bayesian Comparison of Interacting Modified Holographic Ricci Dark Energy Scenarios
Creators: name: Cid, Antonella
name: Rodriguez-Benites, Carlos
name: Cataldo, Mauricio
name: Casanova, Gonzalo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We perform a Bayesian model selection analysis for interacting scenarios of dark matter and modified holographic Ricci dark energy (MHRDE) with linear interacting terms. We use a combination of some of the latest cosmological data such as type Ia supernovae, cosmic chronometers, cosmic microwave background and baryon acoustic oscillations measurements. We find strong evidence against all the MHRDE interacting scenarios studied with respect to $Λ$CDM when the full joint analysis is considered.
description: 13 pages, 4 figures
Energetic balance of the superconducting transition across the BCS-Bose E instein crossover in the attractive Hubbard model
Creators: name: Toschi, A.
name: Capone, M.
name: Castellani, C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate by means of Dynamical Mean-Field Theory the crossover from BCS superconductivity to Bose-Einstein (BE) condensation of preformed pairs in the attractive Hubbard model. We follow the evolution of the two energy scales underlying the superconducting phenomenon, the gap $Δ_0$ and the superfluid stiffness $D_S$, which controls the phase coherence. The BCS-BE crossover is clearly mirrored in a change in the hierarchy of these two scales, the smallest of the two controlling the critical temperature. In the whole intermediate-to-strong coupling region $T_c$ scales with $D_S$, while $T_C$ is proportional to $Δ_0$ only in the BCS regime. This evolution as a function of the interaction qualitatively resembles what happens in the cuprates when the doping is decreased towards the Mott insulator. This continuous change reflects also in the energetic balance at the superconducting transition. While superconductivity is stabilized by a potential energy gain in the BCS regime, the strong-coupling superconductivity is made stable by a reduction of kinetic energy. Interestingly the intermediate-coupling region, where the maximum $T_c$ is achieved, behaves similarly to the strong-coupling regime. The above finding implies that the attractive Hubbard model can account qualitatively for the anomalous behavior of optical spectra around $T_c$, where an increase of spectral weight is observed in under and optimally doped cuprates, while the overdoped samples have a more standard behavior. This qualitative agreement is lost in the normal phase, specifically at strong-coupling, calling for the inclusion of strong correlation effects in the theoretical description.
description: 10 pages, 8 figures
A dusty origin for the correlation between protoplanetary disc accretion rates and dust masses
Creators: name: Sellek, Andrew D.
name: Booth, Richard A.
name: Clarke, Cathie J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recent observations have uncovered a correlation between the accretion rates (measured from the UV continuum excess) of protoplanetary discs and their masses inferred from observations of the sub-mm continuum. While viscous evolution models predict such a correlation, the predicted values are in tension with data obtained from the Lupus and Upper Scorpius star forming regions; for example, they underpredict the scatter in accretion rates, particularly in older regions. Here we argue that since the sub-mm observations trace the discs' dust, by explicitly modelling the dust grain growth, evolution, and emission, we can better understand the correlation. We show that for turbulent viscosities with $α\lesssim 10^{-3}$, the depletion of dust from the disc due to radial drift means we can reproduce the range of masses and accretion rates seen in the Lupus and Upper Sco datasets. One consequence of this model is that the upper locus of accretion rates at a given dust mass does not evolve with the age of the region. Moreover, we find that internal photoevaporation is necessary to produce the lowest accretion rates observed. In order to replicate the correct dust masses at the time of disc dispersal, we favour relatively low photoevaporation rates $\lesssim 10^{-9}~M_{\odot}~\mathrm{yr^{-1}}$ for most sources but cannot discriminate between EUV or X-ray driven winds. A limited number of sources, particularly in Lupus, are shown to have higher masses than predicted by our models which may be evidence for variations in the properties of the dust or dust trapping induced in substructures.
description: Accepted to MNRAS
Big Bang Nucleosynthesis with a New Neutron Lifetime
Creators: name: Mathews, G. J.
name: Kajino, T.
name: Shima, T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We show that the predicted primordial helium production is significantly reduced when new measurements of the neutron lifetime and the implied enhancement in the weak reaction rates are included in big-bang nucleosynthesis. Therefore, even if a narrow uncertainty in the observed helium abundance is adopted, this brings the constraint on the baryon-to-photon ratio from BBN and the observed helium into better accord with the independent determination of the baryon content deduced from the WMAP spectrum of power fluctuations in the cosmic microwave background,and measurements of primordial deuterium in narrow-line quasar absorption systems at high redshift.
description: 4 pages, 1 figure, Submitted to Physical Review D, Revised per referee's suggestions
Search for Doubly-charged Higgs Boson Production in the Decay H++H-- -> mu+mu+mu-mu- with the DO Detector at sqrt{s}=1.96} TeV
Creators: name: Zdrazil, Marian
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for the pair production of doubly-charged Higgs bosons in the process $\ppbar\to\Hpp\Hmm\to μ^+μ^+μ^-μ^-$ is performed with the DØ Run II detector at the Fermilab Tevatron using inclusive di-muon events. These data taken at an energy of $\sqrt{s}=1.96$ TeV correspond to an integrated luminosity of $113 $pb$^{-1}$ and were recorded by DØbetween August 2002 and June 2003. In the absence of a signal, 95% Confidence Level mass limits of $M(\HpmL)>118.6$ GeV and $M(\HpmR)>98.1$ GeV are set on the pair production cross section for left-handed and right-handed doubly-charged Higgs bosons, assuming 100% branching into muons and hypercharge $|Y|=2$.
description: Invited talk at the XXIV Physics in Collisions Conference (PIC04), Boston, USA, June 2004, 6 pages, LaTeX, 2 eps figures. PSN MONP11
Giant pulses from J1823-3021A observed with the MeerKAT telescope
Creators: name: Abbate, F.
name: Bailes, M.
name: Buchner, S. J.
name: Camilo, F.
name: Freire, P. C. C.
name: Geyer, M.
name: Jameson, A.
name: Kramer, M.
name: Possenti, A.
name: Ridolfi, A.
name: Serylak, M.
name: Spiewak, R.
name: Stappers, B. W.
name: Krishnan, V. Venkatraman
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The millisecond pulsar J1823-3021A is a very active giant pulse emitter in the globular cluster NGC 6624. New observations with the MeerKAT radio telescope have revealed 14350 giant pulses over 5 hours of integration time, with an average wait time of about 1 second between giant pulses. The giant pulses occur in phases compatible with the ordinary radio emission, follow a power-law distribution with an index of -2.63 $\pm$ 0.02 and contribute 4 percent of the total integrated flux. The spectral index of the giant pulses follows a Gaussian distribution centered around -1.9 with a standard deviation of 0.6 and is on average flatter than the integrated emission, which has a spectral index of -2.81 $\pm$ 0.02. The waiting times between the GPs are accurately described by a Poissonian distribution, suggesting that the time of occurrence of a GP is independent from the times of occurrence of other GPs. 76 GPs show multiple peaks within the same rotation, a rate that is also compatible with the mutual independence of the GP times of occurrence. We studied the polarization properties of the giant pulses finding, on average, linear polarization only at the 1 percent level and circular polarization at the 3 percent level, similar to the polarization percentages of the total integrated emission. In 4 cases it was possible to measure the RM of the GPs which are highly variable and, in two cases, is inconsistent with the mean RM of the total integrated pulsar signal.
description: Accepted for publication in MNRAS. 8 Pages, 11 Figures