cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Thermal Equilibria of Magnetically Supported, Black Hole Accretion Disks
Creators: name: Oda, H.
name: Machida, M.
name: Nakamura, K. E.
name: Matsumoto, R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present new thermal equilibrium solutions for optically thin and thick disks incorporating magnetic fields. The purpose of this paper is to explain the bright hard state and the bright/slow transition observed in the rising phases of outbursts in BHCs. On the basis of the results of 3D MHD simulations, we assume that magnetic fields inside the disk are turbulent and dominated by the azimuthal component and that the azimuthally averaged Maxwell stress is proportional to the total pressure. We prescribe the magnetic flux advection rate to determine the azimuthal magnetic flux at a given radius. We find magnetically supported, thermally stable solutions for both optically thin and thick disks, in which the heating enhanced by the strong magnetic field balances the radiative cooling. The temperature in a low-$β$ disk is lower than that in an ADAF/RIAF but higher than that in a standard disk. We also study the radial dependence of the thermal equilibrium solutions. The optically thin, low-$β$ branch extends to $ \dot M \gtrsim 0.1 {\dot M}_{\rm Edd}$, in which the temperature anti-correlates with the mass accretion rate. Thus optically thin low-$β$ disks can explain the bright hard state. Optically thick, low-$β$ disks have the radial dependence of the effective temperature $T_{\rm eff} \propto \varpi^{-3/4}$. Such disks will be observed as staying in a high/soft state. Furthermore, limit cycle oscillations between an optically thick low-$β$ disk and a slim disk will occur because the optically thick low-$β$ branch intersects with the radiation pressure dominated standard disk branch. These limit cycle oscillations will show a smaller luminosity variation than that between a standard disk and a slim disk.
description: 23 pages, 9 figures, accepted for publication in ApJ
Additional file 4 of Using the COM-B model and Behaviour Change Wheel to develop a theory and evidence-based intervention for women with gestational diabetes (IINDIAGO)
Creators: name: Murphy, Katherine
name: Berk, Jamie
name: Muhwava-Mbabala, Lorrein
name: Booley, Sharmilah
name: Harbron, Janetta
name: Ware, Lisa
name: Norris, Shane
name: Zarowsky, Christina
name: Lambert, Estelle V.
name: Levitt, Naomi S.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 4. Outline of training for lay counsellors.
The Portrayal of Mathematicians and Mathematics in Popular Culture
Creators: name: Barba, Kimberly
Publisher: name: Journal of Mathematics Education at Teachers College
Year: 2018

description: Mathematicians are often inimically portrayed in popular culture, resulting in an abundance of non-mathematical identities in the classroom. Various tropes are propagated by the media that dominate our mental schemas of what makes a mathematician: the eccentric Einstein-like old man; the young, tortured genius; and the “genetically different” savant. However, these portrayals in popular culture can be used as a tool-rather than a hindrance-if teachers know how to present them properly in the classroom. Although the media often promotes mathematical myths, it can also be used to debunk them.
description: Journal of Mathematics Education at Teachers College, Vol. 9 No. 1: Spring 2018
title: Multivariate Analysis of Variance for Simple Designs
Creators: name: Chen, Yin-Yin
Publisher: name: Utah State University
Year: 1975

description: The analysis of variance is a well known tool for testing how treatments change the average response of experimental units. The essence of the procedure is to compare the variation among means of groups of units subjected to the same treatment with the within treatment variation. If the variation among means is large with respect to the within group variation we are likely to conclude that the treatments caused the variation and hence we say the treatments cause some change in the group means.
The usual analysis of variance checks how far apart the group means are in a single scale of measurement. Almost all researchers are interested in how the treatments affect more than one characteristic (variable) of their experimental units. A typical usage of such data is to run a standard analysis of variance on each variable. This procedure can be very misleading when trying to interpret the results. Most of the time there are strong correlations among these variables and hence if one variable tests significant the others will also. The multivariate analysis of variance provides a way of performing valid tests regardless of the correlation structure among the variables of interest.
Possible Sign-Reversing s-Wave Superconductivity in Co-Doped BaFe2As2 Proved by Thermal Transport Measurements
Creators: name: Machida, Y.
name: Tomokuni, K.
name: Isono, T.
name: Izawa, K.
name: Nakajima, Y.
name: Tamegai, T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Thermal transport measurements have been performed on single-crystalline Co-doped BaFe2As2 down to 0.1 K and under magnetic fields up to 7 T. Significant peak anomalies are observed in both thermal conductivity and thermal Hall conductivity below Tc as an indication of the enhancement of the quasiparticle mean-free path. Moreover, we find a sizable residual T-linear term in thermal conductivity, possibly due to a finite quasiparticle density of states in the superconducting gap induced by impurity pair breaking. Our findings support a pairing symmetry compatible with the theoretically predicted sign-reversing s-wave state.
description: 4 pages, 4 figures, to be published in Journal of the Physical Society of Japan
title: Determining Sample Size for a Control Chart
Creators: name: Jean, Shu-Yang Catherine
Publisher: name: Utah State University
Year: 1974

description: The essential tool in statistical quality control is the control chart. In spite of the apparent simplicity of the control chart, most engineers, production men, and inspectors find that its use calls for an entirely new point of view. The power of this technique lies in its ability to separate out assignable causes of quality variation. This makes possible the diagnosis and correction of many production troubles and often brings substantial improvements in product quality and reduction of spoilage and rework. The control chart tells when to leave a process alone and thus prevents unnecessarily frequent adjustments that tend to increase the variability of the process rather than to decrease it. It also permits better decisions on engineering tolerances and better comparisons between alternative designs and between alternative production methods.
Dryophis kirtlandii Hall.
Creators: name: Müller, F
Publisher: name: Zenodo
Year: 1885
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Squamata
Ophidia
Colubridae
Dryophis

description: Dryophis kirtlandii Hall.
(Oxybelis Lecontei DB. Ox. violac. Fisch. Cladophis kirtl. A. Dum.)
Kamerun v. H. Dr. Passavant. [l] Goldküste v. H. Dr. Mähly. [l]
description: Published as part of Müller, F, 1885, Vierter Nachtrag zum Katalogder herpetologischen Sammlung des Basler Museums, pp. 668-717 in Verhandlungen der Naturforschenden Gesellschaft in Basel. 7 (3) on page 684, DOI: 10.5962/bhl.part.2388, http://zenodo.org/record/15183591
Fermi arcs as a visible manifestation of pair level of negative-U centers
Creators: name: Mitsen, K. V.
name: Ivanenko, O. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Here we consider the possibility that the Fermi arcs observed in ARPES experiments result from interaction of valence band electrons with negative-U centers (NUCs) which are formed under doping on the pairs of neighboring Cu cations in CuO2 plane. This interaction results in two-particle hybridization and vanishing of the gap over the part of Fermi contour. Furthermore the transitions of electrons to NUCs result in the generation of free hole carriers. Just these carriers rather than doping induced charges provide conduction in the normal state.
description: Submitted to proceedings of M2S-IX 2009, Tokyo (Physica C)
Small magnetic loops connecting the quiet surface and the hot outer atmosphere of the Sun
Creators: name: Gonzalez, M. J. Martinez
name: Sainz, R. Manso
name: Ramos, A. Asensio
name: Rubio, L. R. Bellot
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Sunspots are the most spectacular manifestation of solar magnetism, yet, 99% of the solar surface remains 'quiet' at any time of the solar cycle. The quiet sun is not void of magnetic fields, though; they are organized at smaller spatial scales and evolve relatively fast, which makes them difficult to detect. Thus, although extensive quiet Sun magnetism would be a natural driver to a uniform, steady heating of the outer solar atmosphere, it is not clear what the physical processes involved would be due to lack of observational evidence. We report the topology and dynamics of the magnetic field in very quiet regions of the Sun from spectropolarimetric observations of the Hinode satellite, showing a continuous injection of magnetic flux with a well organized topology of Omega-loop from below the solar surface into the upper layers. At first stages, when the loop travels across the photosphere, it has a flattened (staple-like) geometry and a mean velocity ascent of $\sim3$ km/s. When the loop crosses the minimum temperature region, the magnetic fields at the footpoints become almost vertical and the loop topology ressembles a potential field. The mean ascent velocity at chromospheric height is $\sim12$ km/s. The energy input rate of these small-scale loops in the lower boundary of the chromosphere is (at least) of 1.4x10^6-2.2x10^7 erg cm-2 s-1. Our findings provide empirical evidence for solar magnetism as a multi-scale system, in which small-scale low-flux magnetism plays a crucial role, at least as important as active regions, coupling different layers of the solar atmosphere and being an important ingredient for chromospheric and coronal heating models.
description: to appear in ApJ letters (better quality figures will be available in the published version)
title: Canonical Analysis of Several Sets of Variables
Creators: name: Kim, Chong S.
Publisher: name: Utah State University
Year: 1973

description: Many procedures have been proposed for analyzing and describing multivariate dependence structure.
Partial correlation, multiple correlation, canonical correlation, principal component and factor analysis are used to analyze the dependence structures of a multinormal population.
For a partial correlation analysis it is necessary to decide which variables are to be correlated and which of the remaining variables must be held constant.
Multiple correlation demands that one variable be dependent upon some or all of the remaining variates.
For a canonical correlation, the variables must be collected into two or more sets. The factor analysis technique is for explaining the covariances of the variables and the principal component technique is for explaining the variance of the variables.
The principal component technique consists of an orthogonal transformation of the coordinate axes of a multivariate system to new orientations.
title: A Nonparametric Solution for Finding the Optimum Useful Life of Equipment
Creators: name: Stoll, Barry T.
Publisher: name: Utah State University
Year: 1973

description: It is often the case that equipment used by industry must be replaced with new equipment from time to time either because frequent malfunctions make it too costly to repair, or because the equipment has simply worn out. The new equipment often has the nature of either malfunctioning soon after installation due to manufacturing defects, or functioning for an extended period of time because it is free of these defects. For this reason, equipment is often given a preliminary running called the burn-in which gives no useful output but merely tests for manufacturing defects. Also, after a given amount of time, equipment is often replaced so as to avoid the added cost of a breakdown while under use. The term useful life is here used to denote the time period starting after burn-in time is reached and ending when replacement time is reached (Shooman, 1968).
What Form of Mathematics are Assessments Assessing? The Case of Multiplication and Division in Fourth Grade NAEP Items
Creators: name: Kosko, Karl W.
name: Singh, Rashmi
Publisher: name: Journal of Mathematics Education at Teachers College
Year: 2018

description: Multiplicative reasoning is a key concept in elementary school mathematics. Item statistics reported by the National Assessment of Educational Progress (NAEP) assessment provide the best current indicator for how well elementary students across the U.S. understand this, and other concepts. However, beyond expert reviews and statistical analysis, there is relatively little evidence on the validity of NAEP items for assessing mathematical reasoning. The present study examined the convergent validity of several public-release fourth grade NAEP multiplication items. Findings indicate that most items assessed lack sufficient validity for examining children’s underlying conceptual knowledge. Rather, NAEP items may be less appropriate for assessing conceptual understanding and more appropriate for assessing procedural recall. Recommendations and implications are discussed.
description: Journal of Mathematics Education at Teachers College, Vol. 9 No. 1: Spring 2018
title: Integer Programming by Cutting Planes Methods
Creators: name: Wu, Sung-Yen
Publisher: name: Utah State University
Year: 1973

description: Linear programming is a relatively new, very important branch of modern mathematics and is about twenty five years old.
In this day and age, most planners and decision makers will acknowledge that some linear optimization problems are worth the expense and trouble to solve. Using linear programming technique as a tool to make decision plannes are able to greatly redice cost or increase profit for any project under consideration.
Since Dr. George B. Dantzig published his first paper on the simplex method in 1947, progress in that field has been rapid. Although the first applications were military in nature, it was not long before it became apparent that there were important economic and industrial applications as well.
Typical areas of application in linear programming are inventory control, quality control, production scheduling, forecasting, maintenance and repairs, process design, accounting procedures, capital budgeting, the diet problem, machine- loading problem, and the transportation problem.
Robotic Astronomy with the Faulkes Telescopes and Las Cumbres Observatory Global Telescope
Creators: name: Lewis, Fraser
name: Street, Rachel
name: Roche, Paul
name: Stroud, Vanessa
name: Russell, David M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present results from ongoing science projects conducted by members of the Faulkes Telescope (FT) team and Las Cumbres Observatory Global Telescope (LCOGT). Many of these projects incorporate observations carried out and analysed by FT users, comprising amateur astronomers and schools. We also discuss plans for the further development of the LCOGT network.
description: 8 pages, 2 figures, conference proceedings from "Workshop on Robotic Autonomous Observatories", held at Malaga, Spain from 18-21 May 2009, acccepted for publication in Advances in Astronomy
Empowering autonomy : a novel approach to the right to accessible abortion : exploring realities from the perspective of abortion seekers in Canada and England and Wales
Creators: name: Ellison, Hannah
Publisher: name: University of British Columbia
Year: 2023

description: Women’s reproductive rights are consistently threatened globally. Timely access to safe and respectful abortion is unobtainable for many. This is a human rights violation. Accessible abortion is necessary for the exercise of autonomy and female flourishing. This thesis presents an updated understanding of accessible abortion as a human right based on the following rights well-established in international law: the right to life; the right to be free from cruel, inhuman or degrading treatment; the right to health and the right to equality and non-discrimination. Furthermore, this thesis will analyse the often-competing rights: freedom of religion and conscience, and the freedom of expression. From these rights emerge a ‘constellation’ of State obligations that form the international right to accessible abortion, including both international and regional obligations. This thesis then considers the implementation of the right to accessible abortion in two jurisdictions with unique legal and policy frameworks on abortion: Canada and England and Wales. Whilst abortion was completely decriminalised in Canada by the Supreme Court in 1988, abortion remains a criminal offence in England and Wales by virtue of historic legislation. Instead, a lawful abortion in England and Wales is provided by way of a defence for the doctor who provides a termination in accordance with the Abortion Act 1967. Adopting a socio-legal and critical feminist methodology, this thesis focuses on the lived realities of abortion law. Examining policy, healthcare guidelines, and the experience of abortion care by real life women goes beyond mere statistics. Ultimately, after establishing the existence of a robust international right to accessible abortion, this thesis sheds light on the domestic failure to fulfil women’s right to accessible abortion in two jurisdictions often overlooked by the abortion conversation. It suggests necessary reform so that everyone with the capacity to become pregnant has access to safe and respectful abortion care.
Coulomb Distortion in the Inelastic Regime
Creators: name: Solvignon, Patricia
name: Gaskell, Dave
name: Arrington, John
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The Coulomb distortion effects have been for a long time neglected in deep inelastic scattering for the good reason that the incident energies were very high. But for energies in the range of earlier data from SLAC or at JLab, the Coulomb distortion could have the potential consequence of affecting the A-dependence of the EMC effect and of the longitudinal to transverse virtual photon absorption cross section ratio $R(x,Q^2)$.
description: Talk given at the International Workshop on Positrons at Jefferson Lab (JPOS 09)
title: High-Throughput Screening of Rare-Earth-Lean Intermetallic 1-13-X Compounds for Good Hard-Magnetic Properties
Creators: name: Krugel, Georg
name: Körner, Wolfgang
name: Urban, Daniel F.
name: Gutfleisch, Oliver
name: Elsässer, Christian
Publisher: name: MDPI
Year: 2022

description: By computational high-throughput screening, the spontaneous magnetization Ms, uniaxial magnetocrystalline anisotropy constant K₁, anisotropy field Ha, and maximum energy product (BH)max are estimated for ferromagnetic intermetallic phases with a tetragonal 1-13-X structure related to the LaCo₉Si₄ structure type. For SmFe₁₃N, a (BH)max as high as that of Nd₂Fe₁₄B and a comparable K₁ are predicted. Further promising candidates of composition SmFe₁₂AN with A = Co, Ni, Cu, Zn, Ga, Ti, V, Al, Si, or P are identified which potentially reach (BH)max values higher than 400 kJ/m³ combined with significant K₁ values, while containing almost 50% less rare-earth atoms than Nd₂Fe₁₄B.
Development of a novel Enkephalin-like peptide with pain-relieving and antidepressant-like effects
Creators: name: Hohenwarter, Lukas
Publisher: name: University of British Columbia
Year: 2023

description: Chronic pain affects approximately 20% of Canadians and is a global healthcare burden with limited treatment options. The high incidence of comorbid chronic pain and depression additionally worsens patient’s quality of life and treatment outcomes. Antidepressants are used for the treatment of persistent pain but show limited efficacy and often induce serious side effects. Opioids are highly potent analgesics but are associated with severe adverse effects frequently limiting their use in chronic pain management. Endogenous opioids act on our nervous system to regulate pain and mood. The endogenous opioid peptide Leucine-enkephalin (Leu-ENK) produces analgesia with fewer adverse effects compared to conventional opioids. However, its poor stability and low membrane permeability make Leu-ENK ineffective when administered peripherally. We developed the N-pivaloyl Leu-ENK analog KK-103, which showed a high relative binding affinity for the delta opioid receptor (DOR) and was stable in plasma for 5 h. In the hotplate model, subcutaneous (s.c.) KK-103 showed 10-fold improved antinociception compared to Leu-ENK and produced a longer-lasting antinociceptive activity than morphine. In the formalin model, KK-103 reduced the licking and biting time of mice by ~60% relative to the vehicle group. We demonstrated a similar dose to maximum antinociceptive-effect relationship of KK-103 in the hotplate and formalin foot models. Contrasting morphine, KK-103 did not induce breathing depression, physical dependence, and tolerance in the models and experimental timelines used in this study. Additionally, KK-103’s minimal gastrointestinal inhibition and absence of sedation demonstrated its potential as a safe and effective analgesic. We also demonstrated KK-103’s increased systemic adsorption and plasma exposure compared to Leu-ENK and observed brain uptake of radiolabeled KK-103 after s.c. administration. The antinociceptive effect of KK-103 was primarily mediated by opioid receptors in the central nervous system and specifically the activation of the DOR. We detected the conversion of KK-103 to Leu-ENK in vitro which may induce the observed effects of KK-103 in mice. Finally, we determined an antidepressant-like activity of KK-103, which was comparable to that of the antidepressant desipramine. This work showed the potential application of KK-103 for pain and depression and provides the theoretical framework for future R&D of ENK therapeutics.
ANALYZING THE ECONOMIC BENEFITS OF OPTIMIZING ENERGY RECOVERY IN CLINKER COOLERS: A CASE STUDY OF CLINKER COOLER BED
Creators: name: Olufemi, Adewale Ajayi
name: Chinwe, Ekene Nwosu
Publisher: name: AMERICAN SERIAL
Year: 2024
Subjects: Ordinary Portland Cement (OPC)
Energy efficiency
Clinker cooler
Pyro system
Sustainability.

description: The manufacturing of Ordinary Portland Cement (OPC) is renowned for its high energy consumption, with energy costs accounting for over thirty percent of production expenses. Cement industries collectively utilize at least five percent of the total global industrial energy. Addressing energy inefficiencies in this sector requires optimizing the pyro system and enhancing energy recovery in the clinker cooler. Various types of clinker coolers, including grate, planetary, shaft, and rotary clinker coolers, offer potential avenues for improving energy efficiency and reducing environmental impact. By implementing strategies to enhance energy recovery and optimize cooling processes, cement industries can mitigate energy losses and achieve greater sustainability.
Selecting Tools to Model Integer and Binomial Multiplication
Creators: name: Smitherman Pratt, Sarah
name: Eddy, Colleen M.
Publisher: name: Journal of Mathematics Education at Teachers College
Year: 2017

description: Mathematics teachers frequently provide concrete manipulatives to students during instruction; however, the rationale for using certain manipulatives in conjunction with concepts may not be explored. This article focuses on area models that are currently used in classrooms to provide concrete examples of integer and binomial multiplication. The innovation of combining the representations for negative numbers with both algebra tiles and Algeblocks is provided, with a mathematical justification for its development. Teachers’ effective integration of tools such as these in mathematics instruction can help students develop conceptual understanding and procedural fluency.
description: Journal of Mathematics Education at Teachers College, Vol. 8 No. 2: Fall 2017
Roots of Mathematics Anxiety in College Students
Creators: name: Quan-Lorey, Stephanie
Publisher: name: Journal of Mathematics Education at Teachers College
Year: 2017

description: A majority of college students exhibit feelings of fear and discomfort when put into situations that require the use of mathematics. These students are characterized to be mathematics- anxious and tend to overlook the idea that one can gain many benefits from learning the subject. This paper investigates the various factors that have led to and influenced the feelings of mathematics anxiety in 13 undergraduate students pursuing non-mathematics-related majors. Through the use of questionnaires and interviews with each participant, the factors contributing to their mathematics anxiety were studied. Participants attributed teacher attitude, poor instruction, failure, and school tracking to initiating their mathematics anxieties. These findings revealed that the development of the participants’ feelings of anxiety toward mathematics was somehow rooted to an experience in school, which highly influenced their attitudes toward mathematics and shaped their self-perceptions of their mathematical abilities.
description: Journal of Mathematics Education at Teachers College, Vol. 8 No. 2: Fall 2017
title: Development, relative retention, and fecundity of Tribolium castaneum (Herbst) on different starches
Creators: name: Xue, M.
name: Subramanyam, B.
name: Shi, Y.-C.
name: Campbell, J.
name: Hartzer, M.
Publisher: name: Julius Kühn-Institut
Year: 2010
Subjects: subject: nutritional control
subject: Tribolium castaneum
subject: resistant starches
subject: development
subject: oviposition
subject: pest management

description: Julius-Kühn-Archiv; 425; 207-211
Nymphophidium maculatum Gü. R. b. J.
Creators: name: Müller, F
Publisher: name: Zenodo
Year: 1885
Subjects: Biodiversity
Taxonomy
Animalia
Ophidia
Nymphophidium
Nymphophidium maculatum

description: Nymphophidium maculatum Gü. R. b. J.
(Odontomus subannulatus Jan).
Deli (Sum.) v. H. Lüthy. [1]
Auch dieses Exemplar zeigt deutlieh die beiden Knochenprotuberanzen am vomer. (Vide Nachtrag I.)
description: Published as part of Müller, F, 1885, Vierter Nachtrag zum Katalogder herpetologischen Sammlung des Basler Museums, pp. 668-717 in Verhandlungen der Naturforschenden Gesellschaft in Basel. 7 (3) on page 685, DOI: 10.5962/bhl.part.2388, http://zenodo.org/record/15183591
Cloud-based Geospatial Analysis
Creators: name: Girgin, Serkan
Publisher: name: Zenodo
Year: 2021
Subjects: cloud computing
geospatial analysis
IaaS
SaaS
PaaS

description: Recent development in both hardware and software infrastructure have given big push and new direction to geospatial data processing capabilities. Scalable and afforable geospatial data analysis available through a) open-source systems that allow computing clusters on commodity hardware, b) proprietary cloud-based data storage and computing services. However, it is challenging to choose the right solution(s) depending on the nature of geospatial (big) data and the analysis needs. This presentation discuss the needs and provides information on existing cloud computing service and platforms, which can serve these needs. Main characteristics and potential benefits of cloud computing are described, and suggestions are provided for better use of cloud resources to move research to the cloud.
title: National investigations of stored grain arthropods in China
Creators: name: Yan, X.
name: Zhou, H.
name: Shen, Z.
name: Li, W.
name: Guo, D.
name: Song, Y.
name: Lan, S.
name: Zhang, J.
Publisher: name: Julius Kühn-Institut
Year: 2010
Subjects: subject: investigation
subject: stored grain
subject: arthropods
subject: China

description: Julius-Kühn-Archiv; 425; 212-218
title: The Evaluation of Glasser's Maximum Likelihood Method on Missing Data in Regression
Creators: name: Yamasaki, Gayle M.
Publisher: name: Utah State University
Year: 1973

description: Missing data in regression is often a problem to research workers because standard regression methods are applicable only to complete data sets. At present there are three general methods for solving the problem of missing data.
At first, the reduced data method, reduces the incomplete data set to a complete data set before analyzing. Although this method is very simple to apply, substantial amounts of information are sometimes lost when data is eliminated. This results in less precise estimates of the regression parameters.
The second method, generalized least squares, estimates the missing values through least squares techniques, thus obtaining a complete set of data to which regular regression techniques can be applied. This method is practical but relies on estimates to obtain other estimates, thus again creating some loss in precision. Also, it may require multistage processing which could be very time consuming. Afifi and Elashoff (1966), Yates (1933), Bartlett (1937), Wilkinson (1958), and Goldberger (1964) have all given examples of the generalized least squares method for estimating the missing data
LIRA: A Learning-based Query-aware Partition Framework for Large-scale ANN Search
Creators: name: Zeng, Ximu
name: Deng, Liwei
name: Chen, Penghao
name: Chen, Xu
name: Su, Han
name: Zheng, Kai
Publisher: name: arXiv
Year: 2025
Subjects: subject: Information Retrieval (cs.IR)
subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Approximate nearest neighbor search is fundamental in information retrieval. Previous partition-based methods enhance search efficiency by probing partial partitions, yet they face two common issues. In the query phase, a common strategy is to probe partitions based on the distance ranks of a query to partition centroids, which inevitably probes irrelevant partitions as it ignores data distribution. In the partition construction phase, all partition-based methods face the boundary problem that separates a query's nearest neighbors to multiple partitions, resulting in a long-tailed kNN distribution and degrading the optimal nprobe (i.e., the number of probing partitions). To address this gap, we propose LIRA, a LearnIng-based queRy-aware pArtition framework. Specifically, we propose a probing model to directly probe the partitions containing the kNN of a query, which can reduce probing waste and allow for query-aware probing with nprobe individually. Moreover, we incorporate the probing model into a learning-based redundancy strategy to mitigate the adverse impact of the long-tailed kNN distribution on search efficiency. Extensive experiments on real-world vector datasets demonstrate the superiority of LIRA in the trade-off among accuracy, latency, and query fan-out. The codes are available at https://github.com/SimoneZeng/LIRA-ANN-search.
description: This paper is accepted by WWW 2025
Designing and Testing a Mathematics Card Game for Teaching and Learning Elementary Group Theory
Creators: name: Galarza, Patrick
Publisher: name: Journal of Mathematics Education at Teachers College
Year: 2017

description: This paper explores the viability and development of the first edition of the researcher’s mathematical card game, Groups, as a learning tool for elementary group theory, a topic in abstract algebra. Groups was play-tested by six undergraduate students in late 2016 who provided feedback on Groups from both utility-centric and design-centric perspectives. This paper addresses how well undergraduates with no prior group theory experience understand the fundamentals of group theory after playing several games of Groups, and how well undergraduates with prior knowledge of group theory related the Groups game play and mechanics to the fundamentals of group theory. Based on interview and questionnaire data, players found Groups to be an engaging and effective learning tool with both strengths and weaknesses in the tested iteration.
description: Journal of Mathematics Education at Teachers College, Vol. 8 No. 2: Fall 2017
General Electric Quarterly Survey 76-03, Versions I & II, Prof. & Manag., I & II, College Student
Creators: name: Electric, General
Publisher: name: Roper Center for Public Opinion Research
Year: 2022

description: Adult sample: Most interesting concerns (3); world affairs satisfaction (3); importance of various topics (10); need for economic growth (1); economic growth potential (1); feelings about technology (1); price controls (1); wage controls (1); extra income spending (1); race relations (1); companies helping race relations (1); government activity changes (24); business activity changes (12); health measures (1); national issues discussions (2); company effects (1); future predictions (9); atomic plant effects (5); important career aspects (9); income changes (1); price changes (1); financial situation (1); unemployment (1). College student sample: Most interesting concerns (3); world affairs satisfaction (3); importance of various topics (5); feelings about technology (1); economic growth potential (1); need for economic growth (1); race relations (1); companies helping race relations (1); government activity changes (12); business activity changes (6); health measures (2); national issues discussions (2); company effects (1); important career aspects (9); agreement with business statements (13); college attended (2); class year (1); major (1); degree (1); preferred career (2); academic standing (1); residency (2).
Distance determination for RAVE stars using stellar models
Creators: name: Breddels, M. A.
name: Smith, M. C.
name: Helmi, A.
name: Bienayme, O.
name: Binney, J.
name: Bland-Hawthorn, J.
name: Boeche, C.
name: Burnett, B. C. M.
name: Campbell, R.
name: Freeman, K. C.
name: Gibson, B.
name: Gilmore, G.
name: Grebel, E. K.
name: Munari, U.
name: Navarro, J. F.
name: Parker, Q. A.
name: Seabroke, G. M.
name: Siebert, A.
name: Siviero, A.
name: Steinmetz, M.
name: Watson, F. G.
name: Williams, M.
name: Wyse, R. F. G.
name: Zwitter, T.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: (Abridged) Aims:We develop a method for deriving distances from spectroscopic data and obtaining full 6D phase-space coordinates for the RAVE survey's second data release. Methods: We used stellar models combined with atmospheric properties from RAVE (Teff, logg and [Fe/H]) and (J-Ks) photometry from archival sources to derive absolute magnitudes. We are able to derive the full 6D phase-space coordinates for a large sample of RAVE stars. This method is tested with artificial data, Hipparcos trigonometric parallaxes and observations of the open cluster M67. Results: When we applied our method to a set of 16 146 stars, we found that 25% (4 037) of the stars have relative (statistical) distance errors of < 35%, while 50% (8 073) and 75% (12 110) have relative (statistical) errors smaller than 45% and 50%, respectively. Our various tests show that we can reliably estimate distances for main-sequence stars, but there is an indication of potential systematic problems with giant stars. For the main-sequence star sample (defined as those with log(g) > 4), 25% (1 744) have relative distance errors < 31%, while 50% (3 488) and 75% (5 231) have relative errors smaller than 36% and 42%, respectively. Our full dataset shows the expected decrease in the metallicity of stars as a function of distance from the Galactic plane. The known kinematic substructures in the U and V velocity components of nearby dwarf stars are apparent in our dataset, confirming the accuracy of our data and the reliability of our technique. We provide independent measurements of the orientation of the UV velocity ellipsoid and of the solar motion, and they are in very good agreement with previous work. Conclusions: The distance catalogue for the RAVE second data release is available at http://www.astro.rug.nl/~rave
description: 17 pages, 18 figures, data and future updates available at http://www.astro.rug.nl/~rave, accepted for publication in A&A
title: Protecting and disinfesting stored products by drying and cooling, and disinfesting stored products during handling by mechanical treatments
Creators: name: Beckett, S. J.
Publisher: name: Julius Kühn-Institut
Year: 2010
Subjects: subject: drying
subject: cooling
subject: handling
subject: aeration
subject: mechanical impact
subject: disinfestation

description: Julius-Kühn-Archiv; 425; 219-228
Fully 3D Multiple Beam Dynamics Processes Simulation for the Tevatron
Creators: name: Stern, E. G.
name: Amundson, J. F.
name: Spentzouris, P. G.
name: Valishev, A. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: We present validation and results from a simulation of the Fermilab Tevatron including multiple beam dynamics effects. The essential features of the simulation include a fully 3D strong-strong beam-beam particle-in-cell Poisson solver, interactions among multiple bunches and both head-on and long-range beam-beam collisions, coupled linear optics and helical trajectory consistent with beam orbit measurements, chromaticity and resistive wall impedance. We validate individual physical processes against measured data where possible, and analytic calculations elsewhere. Finally, we present simulations of the effects of increasing beam intensity with single and multiple bunches, and study the combined effect of long-range beam-beam interactions and transverse impedance. The results of the simulations were successfully used in Tevatron operations to support a change of chromaticity during the transition to collider mode optics, leading to a factor of two decrease in proton losses, and thus improved reliability of collider operations.
description: 29 pages, 19 figures, submitted to Phys. Rev. ST Accel. Beams
Deficit Discourse and Labeling in Elementary Mathematics Classrooms
Creators: name: Garcia-Olp, Michelle
name: Van Ooyik, Jacklyn
name: Kitchen, Richard
Publisher: name: Journal of Mathematics Education at Teachers College
Year: 2017

description: In this paper we examine deficit perspectives that prospective elementary school teachers (PTs) noticed their mentor teachers held with regards to classifying students by their achievement or behavior. Using a sociopolitical framework, we explored the following research question: What labels and forms of labeling of students have elementary school PTs experienced as part of their school placements? According to PTs, mentor teachers commonly expressed deficit narratives and attached labels to their students, particularly to students of color and low-income students. Deficit perspectives led to student blaming and lowering of expectations, which PTs were convinced negatively impacted students’ mathematical identities. Though student labeling was common, PTs also provided examples in which their mentor teachers refused to attach degrading labels to their students.
description: Journal of Mathematics Education at Teachers College, Vol. 8 No. 2: Fall 2017
title: Economic decision-making model for best ozonation treatment system for stored-product protection
Creators: name: Maier, D. E.
name: Campabadal, C. A.
Publisher: name: Julius Kühn-Institut
Year: 2010
Subjects: subject: ozonation
subject: continuous treatments
subject: stored-product pests
subject: molds
subject: mycotoxins
subject: economic models

description: Julius-Kühn-Archiv; 425; 229
Comparing the Major Definitions of Mathematics Pedagogical Content Knowledge
Creators: name: Johnson, Jeffrey
Publisher: name: Journal of Mathematics Education at Teachers College
Year: 2017

description: The purpose of this research was to compare two definitions and assessments of Mathematics Pedagogical Content Knowledge (PCK). As part of a larger study, nine current and future teachers took an online version of the Measures of Knowledge for Teaching (MKT) - Mathematics assessment and the Cognitively Activating Instruction in Mathematics (COACTIV) assessment. Participants answered questions that demonstrated their understanding of students’ misconceptions, ability to utilize multiple representations and methods, and knowledge of materials that they may be using for instruction. The data were analyzed, and the results indicate that teachers’ scores on these two tests are correlated, but that the individual areas of knowledge were not.
description: Journal of Mathematics Education at Teachers College, Vol. 8 No. 1: Spring 2017
On a new Near-Infrared method to estimate the absolute ages of star clusters: NGC3201 as a first test case
Creators: name: Bono, G.
name: Stetson, P. B.
name: VandenBerg, D. A.
name: Calamida, A.
name: Dall'Ora, M.
name: Iannicola, G.
name: Amico, P.
name: Di Cecco, A.
name: Marchetti, E.
name: Monelli, M.
name: Sanna, N.
name: Walker, A. R.
name: Zoccali, M.
name: Buonanno, R.
name: Caputo, F.
name: Degl'Innocenti, S.
name: D'Odorico, S.
name: Ferraro, I.
name: Gilmozzi, R.
name: Melnick, J.
name: Nonino, M.
name: Ortolani, S.
name: Piersimoni, A. M.
name: Moroni, P. G. Prada
name: Pulone, L.
name: Romaniello, M.
name: Storm, J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a new method to estimate the absolute ages of stellar systems. This method is based on the difference in magnitude between the main sequence turn-off (MSTO) and a well defined knee located along the lower main sequence (MSK). This feature is caused by the collisionally induced absorption of molecular hydrogen and it can be easily identified in near-infrared (NIR) and in optical-NIR color-magnitude diagrams of stellar systems. We took advantage of deep and accurate NIR images collected with the Multi-Conjugate Adaptive Optics Demonstrator temporarily available on the Very Large Telescope and of optical images collected with the Advanced Camera for Surveys Wide Field Camera on the Hubble Space Telescope and with ground-based telescopes to estimate the absolute age of the globular NGC3201 using both the MSTO and the Delta(MSTO-MSK). We have adopted a new set of cluster isochrones and we found that the absolute ages based on the two methods agree to within one sigma. However, the errors of the ages based on the Delta(MSTO-MSK) method are potentially more than a factor of two smaller, since they are not affected by uncertainties in cluster distance or reddening.Current isochrones appear to predict slightly bluer (~0.05mag) NIR and optical-NIR colors than observed for magnitudes fainter than the MSK.
description: 8 pages, 4 figures, accepted for publication on ApJL
title: A Monte Carlo Evaluation of a Nonparametric Technique for Estimating the Hazard Function
Creators: name: Lin, Sheng Jia
Publisher: name: Utah State University
Year: 1971

description: This research is primarily concerned with the estimation of the Hazard functions, the Hazard function is the failure rate at time t, and is defined as -R '(t)/R(t), so it plays an important role in Reliability.
In order to compare and evaluate the estimation methods, it is convenient to select one distribution in this research. Since the Weibull distribution is a useful distribution in Reliability, the Weibull distribution is used in this paper.
Multiple hereditary exostoses and stroke due to vertebral artery dissection.
Creators: name: Zeenat Qureshi Stroke Institutes
Publisher: name: Zenodo
Year: 2023

description: Vascular complications related to multiple hereditary exostoses are uncommon. We present a 39-year-old male patient with multiple exostoses in the upper and lower limbs with an associated positive familial history of such lesions. He experienced a sudden onset of left-side ataxia and hypoesthesia secondary to a left lateral medullary infarction, which was due to a stenotic-pattern vertebral artery dissection (V1-V4). This complication is very rare as a differential diagnosis in the vertebro-basilar dissection spectrum, and a nonspecific relation has been found
title: A Monte Carlo Comparison of Nonparametric Reliability Estimators
Creators: name: Yueh, Jia-Jinn
Publisher: name: Utah State University
Year: 1973

description: It is very difficult to construct a reliability model for a complex system. However, the reliability model for a series configuration is relatively simple. In the simplest case in which the components are mutually independent, the system reliability can be represented as follows:
Rs(x) = ∑ni=1Ri(x),
where Ri is the reliability for the ith component. It is also known that for moderate levels of system reliability for large systems, the component reliability must be high.
Extreme Value Theory indicates that under very general conditions, the initial form of the distribution function is the dominating contribution to the system reliability. In addition, under proper conditions (i.e., the component reliability distribution is such that its related extreme value type is of the limits type, [Gumbel, 1958]), the initial forms of these distributions are Weibull, i.e.,
1 - F(x) = exp(-(x/θ)Y).
Gravitational instability of simply rotating AdS black holes in higher dimensions
Creators: name: Kodama, Hideo
name: Konoplya, R. A.
name: Zhidenko, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the stability of AdS black hole holes rotating in a single two plane for tensor-type gravitational perturbations in $D > 6$ space-time dimensions. First, by an analytic method, we show that there exists no unstable mode when the magnitude $a$ of the angular momentum is smaller than $r_h^2/R$ where $r_h$ is the horizon radius, and $R$ is the AdS curvature radius. Then, by numerical calculations of quasinormal modes, using the separability of the relevant perturbation equations, we show that an instability occurs for rapidly rotating black holes with $a>r_h^2/R$, although the growth rate is tiny (of order $10^{-12}$ of the inverse horizon radius). We give numerical evidences indicating that this instability is caused by superradiance.
description: 17 pages
A Reconceptualized Framework for ‘Opportunity to Learn’ in School Mathematics
Creators: name: Walkowiak, Temple A.
name: Pinter, Holly H.
name: Berry, Robert Q.
Publisher: name: Journal of Mathematics Education at Teachers College
Year: 2017

description: We present a reconceptualized framework for opportunity to learn (OTL) in school mathematics that builds on previous conceptualizations of OTL and includes features related to both quantity (i.e., time) and quality. Our framework draws on existing literature and on our own observational research of mathematics teaching practices. Through the presentation of two teaching vignettes, we highlight key features of mathematics instruction that seem to differentiate students’ OTL. These features are nested under four key dimensions in our OTL framework: the teacher’s mathematical knowledge for teaching (MKT), how time is utilized in the lesson, the mathematical tasks implemented with students, and the nature of the mathematical talk in which students engage. We discuss implications for the use of the framework as well as its shortcomings.
description: Journal of Mathematics Education at Teachers College, Vol. 8 No. 1: Spring 2017