cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 1 of A recombinant antibody toolbox for Dictyostelium discoideum
Creators: name: Wanessa C. Lima
name: Hammel, Philippe
name: Cosson, Pierre
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: Additional file 1: Fig S1. Schematic representation of the conversion of an IgG into an scFv-Fc. (A) An IgG is composed of 4 chains: 2 heavy (H) and 2 light (L) chains, made of a constant (C) and a variable (V) domain. The FV (variable fragment) consists of two chains (VH and VL) and is the region responsible for antigen recognition and binding; thus, it is the region of interest for sequencing. (B) An scFv is made of the VH and VL variable chains joined by a peptide linker (GGGGSGGGGSGGGGS). (C) An scFv-Fc is an scFv molecule fused to an Fc region; the Fc can be of any desired species (rabbit, mouse, human, guinea pig), and it is the region where secondary reagents bind to. Table S1. List of degenerate primers used for hybridoma sequencing. Table S2. Collection of Cosson lab’s hybridoma cell lines producing antibodies against Dictyostelium antigens.
Information and entropy econometrics : A review and synthesis
Creators: name: Golan, Amos
Publisher: name: Foundations and Trends in Econometrics
Year: 2023
Subjects: classificationCode: 38
subject: Economics

description: The overall objectives of this review and synthesis are to study the basics of information-theoretic methods in econometrics, to examine the connecting theme among these methods, and to provide a more detailed summary and synthesis of the sub-class of methods that treat the observed sample moments as stochastic. Within the above objectives, this review focuses on studying the inter-connection between information theory, estimation, and inference. To achieve these objectives, it provides a detailed survey of information-theoretic concepts and quantities used within econometrics. It also illustrates the use of these concepts and quantities within the subfield of information and entropy econometrics while paying special attention to the interpretation of these quantities. The relationships between information-theoretic estimators and traditional estimators are discussed throughout the survey. This synthesis shows that in many cases information-theoretic concepts can be incorporated within the traditional likelihood approach and provide additional insights into the data processing and the resulting inference.
UBC Biodiesel Initiative - Helping Communities to Help Their Future
Creators: name: Chou, Jessica
name: McLeod, Doug
name: Pozar, Marcy
name: Yee, Jessica
name: Yeung, Ada
Publisher: name: The University of British Columbia
Year: 2010

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Torrenticolidae Piersig 1902
Creators: name: Gu, Xinyao
name: Zhang, Ping
name: Jin, Daochao
name: Guo, Jianjun
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Torrenticolidae

description: Family Torrenticolidae Piersig, 1902  Diagnosis. See Wiles (1997: 197).
description: Published as part of Gu, Xinyao, Zhang, Ping, Jin, Daochao & Guo, Jianjun, 2018, A new species representing a new record genus Neoatractides from China (Acari: Hydrachnidia: Torrenticolidae), pp. 335-338 in Zoological Systematics 43 (3) on page 336, DOI: 10.11865/zs.201829, http://zenodo.org/record/4617080
Radar networks: A review of features and challenges
Creators: name: Javadi, S. Hamed
name: Farina, Alfonso
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Networks of multiple radars are typically used for improving the coverage and tracking accuracy. Recently, such networks have facilitated deployment of commercial radars for civilian applications such as healthcare, gesture recognition, home security, and autonomous automobiles. They exploit advanced signal processing techniques together with efficient data fusion methods in order to yield high performance of event detection and tracking. This paper reviews outstanding features of radar networks, their challenges, and their state-of-the-art solutions from the perspective of signal processing. Each discussed subject can be evolved as a hot research topic.
description: To appear soon in Information Fusion
title: B@belonline vol. speciale 2021 Il nuovo atlante di Sophia/ Sophia’s New Atlas
Creators: name: Brezzi, Francesca
name: Gambetti, Francesca
name: Pansera, Maria Teresa
Publisher: name: Roma TrE-Press
Year: 2021

description:

This special edition of B@belonline aims to be a kind of instant book on the tragic themes of 2020. During this year the world was hit by a shocking and devastating pandemic, whose effects on personal lives, communities and societies have intensified with the passage of time. Science, in all its guises, has addressed these issues. Not only technical experts and economists but also sociologists and psychologists, have provided authoritative views that have been the only compass for all of us, inhabitants of a world that suddenly became deserted. In this market square of thoughts, one voice has perhaps been missing, the philosophers’ voice, right at that time when a critical reflection from them would have been needed. But which type of philosophy? A perturbed and lost philosophy, for sure, rather than a triumphant, self-assured, certain philosophy. A philosophy of quaerere rather than affirmare, the philosophy of the “thought without barriers” espoused by Hannah Arendt. Aware of the profound influence that language and thought exert on reality, and vice versa, this edition contains a small but significant constellation of keywords. They are aimed not only at the experts but also at those who, discombobulated and in search of meaning, find in a philosophical lexicon a useful lens to comprehend current difficulties. The Atlas is split into two parts. The first focuses on the “deconstructive” keywords. Taking note of the critical situation, these words try to clarify the “negative” aspects of the pandemic. The second part, on the other hand, focuses on those keywords that can be regarded as positive. They allow us to see the light at the end of the tunnel and to build a new concept of the human community and of the biosphere. Even in a devastating pandemic some good can be found, we can learn how to face the unexpected, how to act in the future and how to act to ensure there is a future.
Domain wall propagation in magnetic nanowires by spin polarized current injection
Creators: name: Vernier, Nicolas
name: Allwood, Dan A.
name: Atkinson, Del
name: Cooke, Michael D.
name: Cowburn, Russell P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate movement of a head-to-head domain wall through a magnetic nanowire simply by passing an electrical current through the domain wall and without any external magnetic field applied. The effect depends on the sense and magnitude of the electrical current and allows direct propagation of domain walls through complex nanowire shapes, contrary to the case of magnetic field induced propagation. The efficiency of this mechanism has been evaluated and the effective force acting on the wall has been found equal to 0.88x10-9 N.A-1.
The Relationship between Chirality, Sense of Rotation, and Hemispheric Preference of Solar Eruptive Filaments
Creators: name: Zhou, Zhenjun
name: Liu, Rui
name: Cheng, Xing
name: Jiang, Chaowei
name: Wang, Yuming
name: Liu, Lijuan
name: Cui, Jun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The orientation, chirality, and dynamics of solar eruptive filaments is a key to understanding the magnetic field of coronal mass ejections (CMEs) and therefore to predicting the geoeffectiveness of CMEs arriving at Earth. However, confusion and contention remain over the relationship between the filament chirality, magnetic helicity, and sense of rotation during eruption. To resolve the ambiguity in observations, in this paper, we used stereoscopic observations to determine the rotation direction of filament apex and the method proposed by Chen et al. (2014) to determine the filament chirality. Our sample of 12 eruptive active-region filaments establishes a strong one-to-one relationship, i.e., during the eruption, sinistral/dextral filaments (located in the southern/northern hemisphere) rotate clockwise/counterclockwise when viewed from above, and corroborates a weak hemispheric preference, i.e., a filament and related sigmoid both exhibit a forward (reverse) S shape in the southern (northern) hemisphere, which suggests that the sigmoidal filament is associated with a low-lying magnetic flux rope with its axis dipped in the middle. As a result of rotation, the projected S shape of a filament is anticipated to be reversed during eruption.
Additional file 1 of Evaluating the effects between metal mixtures and serum vaccine antibody concentrations in children: a prospective birth cohort study
Creators: name: Welch, Barrett M.
name: Branscum, Adam
name: G. John Geldhof
name: Sharia M. Ahmed
name: Hystad, Perry
name: Smit, Ellen
name: Sakila Afroz
name: Megowan, Meghan
name: Mostofa Golam
name: Sharif, Omar
name: Mahmuder Rahman
name: Quazi Quamruzzaman
name: Christiani, David C.
name: Kile, Molly L.
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Supplemental Material.
Additional file 1 of Health literacy, digital literacy and eHealth literacy in Danish nursing students at entry and graduate level: a cross sectional study
Creators: name: Holt, Kamila Adellund
name: Overgaard, Dorthe
name: Engel, Lisbeth Vinberg
name: Kayser, Lars
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1: Supplementary file 1. Survey about Health Literacy and eHealth Literacy.
A study of distant Ly-alpha emitters in overdense regions
Creators: name: Venemans, B. P.
name: Rottgering, H. J. A.
name: Miley, G. K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recently, we conducted a Very Large Telescope (VLT) large program to search for forming clusters by looking for overdensities of Ly-alpha emitters around high redshift radio galaxies. In total seven proto-clusters were discovered, including a proto-cluster around the radio galaxy MRC 0316--257 at z ~ 3.13. This structure has an excess of Ly-alpha emitters by a factor of 3 as compared to the field, and the derived mass is 2-5 x 10^14 M_sun. The Ly-alpha emitters in the proto-cluster are on average bluer than Lyman Break Galaxies (LBGs). Also, the galaxies are faint (sub L_*) and small (half light radii < 1.7 kpc, which is smaller than the average size of LBGs). This might indicate that, at least a fraction of, Ly-alpha emitters could be young (~ 10^6 yr), nearly dust-free, forming galaxies.
description: 6 pages, 2 figures. To appear in the proceedings of the Venice conference "Multiwavelength Mapping of Galaxy Formation and Evolution", October 13-16, 2003
Do summer time-use gaps vary by socioeconomic status?
Creators: name: Gershenson, Seth
Publisher: name: American University
Year: 2023

description: Several scholars have suggested that differential rates of summer learning loss contribute to the persistence of achievement gaps between students of different socioeconomic status (SES). The current study tests the hypothesis that differences by SES in both children’s and parents’ time spent in activities related to children’s cognitive and social development widen during the summer vacation using data from two time-diary surveys: the Activity Pattern Survey of California Children and the American Time Use Study. Estimates of Tobit and linear time-use regressions for a variety of activities known to influence children’s cognitive and social development provide evidence of statistically and practically significant summer-SES time-use gaps, most notably in children’s television viewing.
Properties of spherical and deformed nuclei using regularized pseudopotentials in nuclear DFT
Creators: name: Bennaceur, K.
name: Dobaczewski, J.
name: Haverinen, T.
name: Kortelainen, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We developed new parameterizations of local regularized finite-range pseudopotentials up to next-to-next-to-next-to-leading order (N3LO), used as generators of nuclear density functionals. When supplemented with zero-range spin-orbit and density-dependent terms, they provide a correct single-reference description of binding energies and radii of spherical and deformed nuclei. We compared the obtained results to experimental data and discussed benchmarks against the standard well-established Gogny D1S functional.
description: 25 LaTeX pages, 15 figures, Fig. 14 modified
Residential end-use load shape data analysis
Creators: name: Ruderman, Henry
name: Eto, Joseph H.
name: Heinemeier, Kristin
name: Golan, Amos
name: Wood, David J.
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 35
subject: Commerce, management, tourism and services

description: Description to be added
Quantum Gravity Phenomenology and Lorentz Violation
Creators: name: Jacobson, Ted
name: Liberati, Stefano
name: Mattingly, David
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: If quantum gravity violates Lorentz symmetry, the prospects for observational guidance in understanding quantum gravity improve considerably. This article briefly reviews previous work on Lorentz violation (LV) and discusses aspects of the effective field theory framework for parametrizing LV effects. Current observational constraints on LV are then summarized, focusing on effects in QED at order E/M_Planck.
description: 16 pages, Expanded version of a lecture by T. Jacobson, to be published in Particle Physics and the Universe, Proceedings of the 9th Adriatic Meeting, eds. J.Trampetic and J.Wess (Springer-Verlag, 2004)
Do summer time-use gaps vary by socioeconomic status?
Creators: name: Gershenson, Seth
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3904
subject: Specialist studies in education

description: Several scholars have suggested that differential rates of summer learning loss contribute to the persistence of achievement gaps between students of different socioeconomic status (SES). The current study tests the hypothesis that differences by SES in both children’s and parents’ time spent in activities related to children’s cognitive and social development widen during the summer vacation using data from two time-diary surveys: the Activity Pattern Survey of California Children and the American Time Use Study. Estimates of Tobit and linear time-use regressions for a variety of activities known to influence children’s cognitive and social development provide evidence of statistically and practically significant summer-SES time-use gaps, most notably in children’s television viewing.
The effect of community traumatic events on student achievement : Evidence from the Beltway Sniper attacks
Creators: name: Gershenson, Seth
name: Tekin, Erdal
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3904
subject: Specialist studies in education
classificationCode: 4402
subject: Criminology
subject: FOS: Law

description: Community traumatic events such as mass shootings, terrorist attacks, and natural or manmade disasters have the potential to disrupt student learning in numerous ways. For example, these events can reduce instructional time by causing teacher and student absences, school closures, and disturbances to usual classroom routines. Similarly, they might also disrupt home environments. This paper uses a quasi-experimental research design to identify the effects of the 2002 “Beltway Sniper” attacks on student achievement in Virginia’s public schools. In order to identify the causal impact of these events, the empirical analysis uses a difference-in-differences strategy that exploits geographic variation in schools’ proximity to the attacks. The main results indicate that the attacks significantly reduced school-level proficiency rates in schools within five miles of an attack. Evidence of a causal effect is most robust for third grade reading and third and fifth grade math proficiency, suggesting that the shootings caused a decline in school proficiency rates of about five to nine percentage points. Particularly concerning from an equity standpoint, these effects appear to be entirely driven by achievement declines in schools that serve higher proportions of racial minority and socioeconomically disadvantaged students. Finally, results from supplementary analyses suggest that these deleterious effects faded out in subsequent years.
The effect of community traumatic events on student achievement : Evidence from the Beltway Sniper attacks
Creators: name: Gershenson, Seth
name: Tekin, Erdal
Publisher: name: American University
Year: 2023

description: Community traumatic events such as mass shootings, terrorist attacks, and natural or manmade disasters have the potential to disrupt student learning in numerous ways. For example, these events can reduce instructional time by causing teacher and student absences, school closures, and disturbances to usual classroom routines. Similarly, they might also disrupt home environments. This paper uses a quasi-experimental research design to identify the effects of the 2002 “Beltway Sniper” attacks on student achievement in Virginia’s public schools. In order to identify the causal impact of these events, the empirical analysis uses a difference-in-differences strategy that exploits geographic variation in schools’ proximity to the attacks. The main results indicate that the attacks significantly reduced school-level proficiency rates in schools within five miles of an attack. Evidence of a causal effect is most robust for third grade reading and third and fifth grade math proficiency, suggesting that the shootings caused a decline in school proficiency rates of about five to nine percentage points. Particularly concerning from an equity standpoint, these effects appear to be entirely driven by achievement declines in schools that serve higher proportions of racial minority and socioeconomically disadvantaged students. Finally, results from supplementary analyses suggest that these deleterious effects faded out in subsequent years.
Modelling and computer simulation of an insurance policy: A search for maximum profit
Creators: name: Acharyya, M.
name: Acharyya, A. B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Finance (q-fin.CP)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: We have developed a model for a life insurance policy. In this model the net gain is calculated by computer simulation for a particular type of lifetime distribution function. We observed that the net gain becomes maximum for a particular value of upper age of last premium. This paper is dedicated to Professor Dietrich Stauffer on the occassion of his 60-th birthday.
description: This paper is dedicated to Prof. D. Stauffer on the occassion of his 60th birthday. Int. J. Mod. Phys. C (2003) (in press)
title: Leadership in extended schools: Working in an inter-agency collaborative context
Creators: name: Yakavets, Natallia
Publisher: name: The Open University
Year: 2011

description: This study examines the leadership practices of practitioners involved in implementing the UK Government's extended schools programme. It specifically explores how leaders deal with a variety of situations and tasks while working within an inter-organizational collaborative context involving schools, community and partner organizations. The study's conceptual framework is based on theories about social capital (Coleman, 1988; Putnam, 2000) and on the theory of collaborative advantage (Huxham & Vangen, 2005). A multiperspective qualitative case study design was adopted, utilising semi-structured interviews, documentary analysis, and observation to collect data during a ten-month period in one local authority in a city in England. The interview data were collected from 20 participants from schools, the local authority, and different partner organizations working with selected schools. These data were cross-referenced with observations of leadership practice and a range of available documentation. This study highlights the challenging task for practitioners of synthesising multiple government initiatives into a coherent strategy of partnership working. Findings indicate the value of the extended schooling programme as an opportunity for improving the life chances of children and their families, and illuminate the functioning of schools as `appropriable social organizations' (Coleman, 1990) which can not only assist educational purposes but build social capital more generally. This study shows that building and using aspects of social capital - such as networks, trust, shared values and norms - is essential if leadership practice is to promote effective inter-agency collaboration. However, the study argues that there is a danger of exaggerating the capacity of collaborative leadership, since the problems faced by people in deprived communities are not easily resolved by short-term inter-agency partnership working. Nevertheless, its potential contribution should not be underestimated, and this thesis provides a framework for understanding and promoting collaborative leadership in inter-organizational contexts.
Additional file 5 of Assessing the quality of health research from an Indigenous perspective: the Aboriginal and Torres Strait Islander quality appraisal tool
Creators: name: Harfield, Stephen
name: Pearson, Odette
name: Morey, Kim
name: Kite, Elaine
name: Canuto, Karla
name: Glover, Karen
name: Gomersall, Judith Streak
name: Carter, Drew
name: Davy, Carol
name: Aromataris, Edoardo
name: Braunack-Mayer, Annette
Publisher: name: figshare
Year: 2020
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Marine Biology
subject: Science Policy

description: Additional file 5.
Identifying a Two-State Hamiltonian in the Presence of Decoherence
Creators: name: Cole, Jared H.
name: Greentree, Andrew D.
name: Oi, Daniel K. L.
name: Schirmer, Sonia G.
name: Wellard, Cameron J.
name: Hollenberg, Lloyd C. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Mapping the system evolution of a two-state system allows the determination of the effective system Hamiltonian directly. We show how this can be achieved even if the system is decohering appreciably over the observation time. A method to include various decoherence models is given and the limits of this technique are explored. This technique is applicable both to the problem of calibrating a control Hamiltonian for quantum computing applications and for precision experiments in two-state quantum systems. For simple models of decoherence, this method can be applied even when the decoherence time is comparable to the oscillation period of the system.
description: 8 pages, 6 figures. Minor corrections, published version
The spin-torque transistor
Creators: name: Bauer, Gerrit E. W.
name: Brataas, Arne
name: Tserkovnyak, Yaroslav
name: van Wees, Bart J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A magnetoelectronic thin-film transistor is proposed that can display negative differential resistance and gain. The working principle is the modulation of the soure-drain current in a spin valve by the magnetization of a third electrode, which is rotated by the spin-torque created by a control spin-valve. The device can operate at room temperature, but in order to be useful, ferromagnetic materials with polarizations close to unity are required.
description: to be published in Applied Physics Letters
Observation of Large CP Violation and Evidence for Direct CP Violation in B0-->pi+pi- Decays
Creators: name: Abe, K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report the first observation of CP-violating asymmetries in B0 --> pi+pi- decays based on a 140 fb-1 data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We reconstruct one neutral B meson as a B0 --> pi+pi- CP eigenstate and identify the flavor of the accompanying B meson from its decay products. We apply an unbinned maximum likelihood fit to the distribution of the time intervals between the two B meson decay points. The fit yields the CP-violating asymmetry amplitudes Apipi = +0.58+/-0.15(stat)+/-0.07(syst) and Spipi = -1.00+/-0.21(stat)+/-0.07(syst). We rule out the CP-conserving case, Apipi=Spipi=0, at a level of 5.2 standard deviations. We also find evidence for direct CP violation with a significance at or greater than 3.2 standard deviations for any Spipi value.
description: 9 pages, 3 figures
Influence of the Interstellar Medium on the Shaping of Planetary Nebulae
Creators: name: Müller, Hans-Reinhard
name: Kerber, Florian
name: Rauch, Thomas
name: Pauli, Eva-Maria
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The interaction of the ISM with the evolution of PNe is studied for cases where there is a large relative velocity between ISM and central star, for example for high-proper motion PNe. In such cases the ISM wind already interacts strongly with the AGB wind, and extensive PN asymmetries result.
description: 4 pages, 3 figures; to appear in "Asymmetric Planetary Nebulae III", M. Meixner, J. Kastner, N. Soker, B. Balick (Eds.), ASP Conf. Series
Methodology and research design for assessing the UBC Food System : indicators of sustainability
Creators: name: Anggoro, Lisayani
name: Moogk, Anna
name: Chiu, Jack
name: Olenick, Danica
name: Gordon, Miriam
name: Steward, Moira
name: Huzzey, Juliana
Publisher: name: The University of British Columbia
Year: 2014

description: The purpose of the paper should be stated first. The UBC Food System (UBCFS) is currently composed of several components. These include the Sustainability Office, Sustainability Policy, Social, Ecological, Economic Development Studies (SEEDS), the Alma Matter Society, UBC Food Services, Waste Management, the Official Community Plan, and the UBC Farm. The objective of this paper is to design a research project to assess the current sustainability status of each of these sectors in the UBCFS. Specific indicators of sustainability are aimed to measure how sustainable the UBC community is, and will help to identify problems that make the system unsustainable. The overall purpose of the project is to provide indicators and a method of carrying out the research proposal we have designed, which will be conducted by future Agricultural 450 students. In our paper we have created a map of the UBCFS as well as continuum model ranging from sustainable to unsustainable in order to measure the indicators that we have developed. This report concludes with recommendations on some of the next steps that need to be taken in order to continue to develop a more sustainable UBCFS. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
On the exponential Diophantine equation $(n-1)^{x}+(n+2)^{y}=n^{z}$
Creators: name: Bai, Hairong
name: Kızıldere, Elif
name: Soydan, Gökhan
name: Yuan, Pingzhi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11D61, 11D41

description: Suppose that $n$ is a positive integer. In this paper, we show that the exponential Diophantine equation $$(n-1)^{x}+(n+2)^{y}=n^{z},\ n\geq 2,\ xyz\neq 0$$ has only the positive integer solutions $(n,x,y,z)=(3,2,1,2), (3,1,2,3)$. The main tools on the proofs are Baker's theory and Bilu-Hanrot-Voutier's result on primitive divisors of Lucas numbers.
description: 12 pages, to appear, Colloquium Mathematicum (2020)
The effect of primary school size on academic achievement
Creators: name: Gershenson, Seth
name: Langbein, Laura
Publisher: name: American University
Year: 2023

description: Evidence on optimal school size is mixed. We estimate the effect of transitory changes in school size on the academic achievement of 4th- and 5th-grade students in North Carolina using student-level longitudinal administrative data. Estimates of value-added models that condition on school-specific linear time trends and a variety of teacher-by-school, student, and school-by-year fixed effects suggest that on average, there is no causal relationship between school size and academic performance. However, two subgroups of interest are significantly harmed by school size: socioeconomically disadvantaged students and students with learning disabilities. The largest effects are observed among students with learning disabilities: a ten-student increase in grade size is found to decrease their math and reading achievement by about 0.015 test-score standard deviations.
The effect of primary school size on academic achievement
Creators: name: Gershenson, Seth
name: Langbein, Laura
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3904
subject: Specialist studies in education

description: Evidence on optimal school size is mixed. We estimate the effect of transitory changes in school size on the academic achievement of 4th- and 5th-grade students in North Carolina using student-level longitudinal administrative data. Estimates of value-added models that condition on school-specific linear time trends and a variety of teacher-by-school, student, and school-by-year fixed effects suggest that on average, there is no causal relationship between school size and academic performance. However, two subgroups of interest are significantly harmed by school size: socioeconomically disadvantaged students and students with learning disabilities. The largest effects are observed among students with learning disabilities: a ten-student increase in grade size is found to decrease their math and reading achievement by about 0.015 test-score standard deviations.
Additional file 4 of Assessing the quality of health research from an Indigenous perspective: the Aboriginal and Torres Strait Islander quality appraisal tool
Creators: name: Harfield, Stephen
name: Pearson, Odette
name: Morey, Kim
name: Kite, Elaine
name: Canuto, Karla
name: Glover, Karen
name: Gomersall, Judith Streak
name: Carter, Drew
name: Davy, Carol
name: Aromataris, Edoardo
name: Braunack-Mayer, Annette
Publisher: name: figshare
Year: 2020
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Marine Biology
subject: Science Policy

description: Additional file 4.
Corrections to the Nuclear Axial Vector Coupling in a Nuclear Medium
Creators: name: Carter, G. W.
name: Henley, E. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We examine further corrections to the time component of the axial vector coupling constant in a nuclear medium. The dominant correction is that of exchange currents. The corrections we examine make the remaining discrepancy worse.
description: 6 pages, 2 figures
Lucidity : Visions of Truth
Creators: name: Fischre, Jean-Michel
name: Williams, II, Russell
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3602
subject: Creative and professional writing

description: A young African-American woman experiences vivid day dreams of the black human rights struggle. Over the course of her day the line between reality and fantasy begin to blur.
THE INVOLVEMENT OF THE AGRICULTURAL ECONOMIST WITH AGRICULTURAL POLICY - OR SHOULD HE WITHDRAW HIMSELF FROM THIS MESS?
Creators: name: Groenewald, J. A.
name: Groenewald, J. A.
Publisher: name: Unknown
Year: 1987
Subjects: Agricultural and Food Policy
Public Economics
Teaching/Communication/Extension/Profession

description: Until very recently, agricultural economists made little impact on agricultural policy in South Africa. This contributed to the present serious problems. The causes appear to have been twofold: Antipathy or apathy among political and bureaucratic decision-makers and lack of proper professional conduct among agricultural economists. The agricultural economist's task is to analyse and monitor progress. The decision-maker must decide, act and bear responsibility. The problems agriculture is faced with will probably increase in magnitude and intensity. More attention should be given to the proper integration of agriculture in macroeconomic models and broadening them, proper focus on international agriculture, farm labour policy, social benefit/ cost analysis and monetary and fiscal affairs. The challenge is comprehensive.
The estimation of summer learning rates
Creators: name: Hayes, Michael S.
name: Gershenson, Seth
Publisher: name: American University
Year: 2023

description: The activities and experiences that contribute to summer learning are potentially important inputs to the education production function, yet are relatively understudied by economists. We propose a method for identifying heterogeneity in summer learning rates when tests are not given on the first and last days of the school year and apply this method to data from the nationally representative Early Childhood Longitudinal Study – Kindergarten Cohort (ECLS-K). Generally, we find evidence of heterogeneity in summer learning that varies between gain-score and lag-score models of the education production function, and between math and reading achievement. Consistent with previous research, students from low-income households make significantly lower summer reading gains than children from wealthier households. However, we also find evidence of differential rates of summer math development by baseline academic ability, private school attendance, and summer school attendance.
Assessing the sustainability of the UBC campus
Creators: name: Cheng, Katherine
name: Gershtein, Ina
name: Hewko, Sarah
name: Martinolich, Katie
name: Pinkerton, Kirsten
name: Sivapatham, Jana
name: Su, Jenny
Publisher: name: The University of British Columbia
Year: 2014

description: The UBC food system is a microcosm of the greater global food system, reflecting the way in which food is often processed, transported, viewed, purchased, eaten, and how wastes are handled on a global scale. The group has developed a tool by which sustainability of the UBC campus may be periodically assessed. Six indicators have been selected from three categories: ecological, social, and economic. Each indicator is described in terms of importance and measurability. The selected indicators include recycling, composting, ecological footprint, food miles, nutrition, and food affordability. It is hoped that the tool will be useful to future sustainability researchers on UBC campus, in particular the UBC Sustainability Office, which is continuously working towards the goal of improving campus sustainability. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
The estimation of summer learning rates
Creators: name: Hayes, Michael S.
name: Gershenson, Seth
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3904
subject: Specialist studies in education

description: The activities and experiences that contribute to summer learning are potentially important inputs to the education production function, yet are relatively understudied by economists. We propose a method for identifying heterogeneity in summer learning rates when tests are not given on the first and last days of the school year and apply this method to data from the nationally representative Early Childhood Longitudinal Study – Kindergarten Cohort (ECLS-K). Generally, we find evidence of heterogeneity in summer learning that varies between gain-score and lag-score models of the education production function, and between math and reading achievement. Consistent with previous research, students from low-income households make significantly lower summer reading gains than children from wealthier households. However, we also find evidence of differential rates of summer math development by baseline academic ability, private school attendance, and summer school attendance.
THE EFFECT OF DROUGHT ON ECONOMICALLY OPTIMAL NITROGEN FERTILIZATION RATES OF DRYLAND WHEAT IN THE SUMMER RAINFALL AREA
Creators: name: Korentajer, L.
name: Berliner, P. R.
name: Van Zyl, J.
name: Korentajer, L.
name: Berliner, P. R.
name: Van Zyl, J.
Publisher: name: Unknown
Year: 1987
Subjects: Agricultural and Food Policy
Crop Production/Industries
Environmental Economics and Policy

description: A quadratic nitrogen response model for dryland wheat with moisture stress dependent coefficients is described and validated. The model was used to estimate the effects of moisture stress on the nitrogen levels corresponding to a maximum yield and an economically optimal yield, respectively. For the range of stress values representative of dryland cropping conditions in South Africa the nitrogen level needed for a maximum yield was largely independent of the stress level. In contrast, the nitrogen level needed for an economically optimal yield increased sharply with increasing moisture stress. The implications of these results with respect to the problem of nitrogen fertilization in semi-arid regions are discussed.
Missing Observations and Panel Data A Monte-Carlo Analysis
Creators: name: Matyas, Laszlo
name: Lovrics, Laszlo
name: Matyas, Laszlo
name: Lovrics, Laszlo
Publisher: name: Unknown
Year: 1991
Subjects: subject: Research Methods/ Statistical Methods
subject: Risk and Uncertainty
subject: Panel data
subject: error components model
subject: missing observations
subject: unbalanced panels
subject: Monte—Carlo experiment
subject: risk function

description: By means of Monte—Carlo experiments the loss of efficiency of the main error components' models estimators is analysed if from a panel data base those individuals are dropped for which the observations are not complete. An empirical risk function has been estimated. This can help to measure the risk of the use of complete sub—panels instead of the original but incomplete ones.
title: An analysis of the determinants of household waste recycling behaviour
Creators: name: Wolfe, Laurence E. M.
Publisher: name: The Open University
Year: 2011

description: Previous research has identified household recycling as being an important pro- environmental behaviour and that behaviour is influenced by a number of psycho- social determinants. Several behavioural models were evaluated for appropriateness in representing recycling behaviour. The Triandis Theory of Interpersonal Behaviour (TIB) was selected as it incorporates a diverse range of psycho-social components, identified in the literature review as being important to household recycling. The TIB has been successfully used in other areas of human behaviour and was considered a useful model for investigating household recycling behaviour. This thesis presents research into household recycling behaviour in a UK local authority using a mixed-method approach. The research was conducted in phases commencing with scoping of the study area, analysis of secondary data from a large scale quantitative survey of households, and primary qualitative research through interviews with residents. It uses the TIB as a framework for presenting the findings, Questions from the household survey were used as proxies representing TIB components and compared with the results from the household interviews to provide an in-depth exploration of household recycling. A key finding was that individuals demonstrated characteristics of one of two types of recycling behaviour based on effort and degree of self-restriction. Significant differences were observed between behavioural determinants in accordance with their recycling behaviour. This suggests that recycling behaviour may be associated with different levels of influence based on the disposition of the individual. The research concluded that the TIB provides a useful way of framing the determinants of household recycling behaviour, and that its wider application could contribute to the understanding and practice.
Spinning black holes in shift-symmetric Horndeski theory
Creators: name: Delgado, Jorge F. M.
name: Herdeiro, Carlos A. R.
name: Radu, Eugen
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct spinning black holes (BHs) in shift-symmetric Horndeski theory. This is an Einstein-scalar-Gauss-Bonnet model wherein the (real) scalar field couples linearly to the Gauss-Bonnet curvature squared combination. The BH solutions constructed are stationary, axially symmetric and asymptotically flat. They possess a non-trivial scalar field outside their regular event horizon; thus they have scalar hair. The scalar "charge" is not, however, an independent macroscopic degree of freedom. It is proportional to the Hawking temperature, as in the static limit, wherein the BHs reduce to the spherical solutions found by Sotirou and Zhou. The spinning BHs herein are found by solving non-perturbatively the field equations, numerically. We present an overview of the parameter space of the solutions together with a study of their basic geometric and phenomenological properties. These solutions are compared with the spinning BHs in the Einstein-dilaton-Gauss-Bonnet model and the Kerr BH of vacuum General Relativity. As for the former, and in contrast with the latter, there is a minimal BH size and small violations of the Kerr bound. Phenomenological differences with respect to either the former or the latter, however, are small for illustrative observables, being of the order of a few percent, at most.
description: 29 pages, 8 figures
How do substitute teachers substitute? An empirical study of substitute teacher labor supply
Creators: name: Gershenson, Seth
Publisher: name: American University
Year: 2023

description: This paper examines the daily labor supply of a potentially important, but often overlooked, source of instruction in U.S. public schools: substitute teachers. I estimate a sequential binary-choice model of substitute teachers’ job-offer acceptance decisions using data on job offers made by a randomized automated calling system. Importantly, this randomization generates exogenous variation in offer quality. I find that determinants of substitutes’ offer-acceptance decisions include the offer’s arrival time, commute time, day of week, classroom type, school type, and school quality. Interestingly, conditional on school quality student demographics do not significantly influence substitutes’ decisions. Longer and higher paying full-day jobs are preferred to half-day jobs, although conditional on daily pay, job length does not significantly impact daily labor-supply decisions. Preferences for several job characteristics are found to vary with substitutes’ regular-teacher certification status. Policy implications of these findings are discussed.
Quantum speed limit based on the bound of Bures angle
Creators: name: Wu, Shao-xiong
name: Yu, Chang-shui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we investigate the unified bound of quantum speed limit time in open systems based on the modified Bures angle. This bound is applied to the damped Jaynes-Cummings model and the dephasing model, and the analytical quantum speed limit time is obtained for both models. As an example, the maximum coherent qubit state with white noise is chosen as the initial states for the damped Jaynes-Cummings model. It is found that the quantum speed limit time in both the non-Markovian and the Markovian regimes can be decreased by the white noise compared with the pure state. In addition, for the dephasing model, we find that the quantum speed limit time is not only related to the coherence of initial state and non-Markovianity, but also dependent on the population of initial excited state.