cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Characterization and crystal nucleation kinetics of a new metastable polymorph of piracetam in alcoholic solvents
Creators: name: Kakkar, Shubhangi
name: Zeng, Lai
name: Svärd, Michael
name: RASMUSON, AKE
Publisher: name: University of Limerick
Year: 2023
Subjects: subject: Chemical sciences
subject: FOS: Chemical sciences

description: A new polymorph of the drug active pharmaceutical ingredient piracetam (Form VI) has been discovered and characterized by X-ray powder diffraction (PXRD), solid-state Raman, attenuated total reflectance infrared spectroscopy, and differential scanning calorimetry. The PXRD diffractogram of Form VI shows a distinct peak at 24.2° (2θ) that distinguishes it from the previously known polymorphs and solvates. Form VI is metastable with respect to the previously known polymorphs Form II and Form III; in ethanol solution at 288 K, Form VI transforms into Form II within 15 min, while in isopropanol solution Form VI is kinetically stable for at least 6 h. A total of 1200 crystal nucleation induction time experiments of piracetam in ethanol and isopropanol solutions have been conducted, in sets of 40–80 repeat experiments carried out at different temperatures and solute concentrations. Each solution nucleated as a single polymorph, and each set of repeat experiments resulted in different proportions of Form II, Form III, and Form VI, with Form VI dominating at low nucleation temperatures and Form II at higher nucleation temperatures. The induction time data for Form VI at 288 K have been evaluated within the framework of the classical nucleation theory. At equal driving force, nucleation of Form VI is less obstructed in ethanol than in isopropanol, as captured by a lower interfacial energy and higher pre-exponential factor in ethanol. The proportion of Form VI obtained at a comparable driving force increases in the order ethanol < isopropanol.
Double site-bond percolation model for biomaterial implants
Creators: name: Mely, H.
name: Mathiot, J. -F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Tissues and Organs (q-bio.TO)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We present a double site-bond percolation model to account, on the one hand, for the vascularization and/or resorption of biomaterial implant in bones and, on the other hand, for its mechanical continuity. The transformation of the implant into osseous material, and the dynamical formation/destruction of this osseous material is accounted for by creation and destruction of links and sites in two, entangled, networks. We identify the relevant parameters to describe the implant and its evolution, and separate their biological or chemical origin from their physical one. We classify the various phenomena in the two regimes, percolating or non-percolating, of the networks. We present first numerical results in two dimensions.
description: 14 pages, 9 figures
The Dawning of the Stream of Aquarius in RAVE
Creators: name: Williams, Mary E. K.
name: Steinmetz, Matthias
name: Sharma, Sanjib
name: Bland-Hawthorn, Joss
name: de Jong, Roelof S.
name: Seabroke, George M.
name: Helmi, Amina
name: Freeman, Kenneth C.
name: Binney, James
name: Minchev, Ivan
name: Bienaymé, Olivier
name: Campbell, Rachel
name: Fulbright, Jon P.
name: Gibson, Brad K.
name: Gilmore, Gerard F.
name: Grebel, Eva K.
name: Munari, Ulisse
name: Navarro, Julio F.
name: Parker, Quentin A.
name: Reid, Warren
name: Siebert, Arnaud
name: Siviero, Alessandro
name: Watson, Fred G.
name: Wyse, Rosemary F. G.
name: Zwitter, Tomaz
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We identify a new, nearby (0.5 < d < 10 kpc) stream in data from the RAdial Velocity Experiment (RAVE). As the majority of stars in the stream lie in the constellation of Aquarius we name it the Aquarius Stream. We identify 15 members of the stream lying between 30 < l < 75 and -70< b
description: 17 pages, 10 figures, accepted for publication in ApJ
ПСИХІЧНЕ ЗДОРОВ'Я ВНУТРІШНЬО ПЕРЕМІЩЕНИХ ОСІБ ТА НАСЕЛЕННЯ УКРАЇНИ В ЦІЛОМУ
Creators: name: Kuznetsova, Irina
name: Mikheieva, Oksana
name: Catling, Jon
name: Round, John
name: Babenko, Svitlana
Publisher: name: Zenodo
Year: 2019
Subjects: ВПО
психічное здоров'е
депресія
Україна
тривожність

description: Загальна мета дослідження – з’ясуваня інтенсивності прояву проблем психічного здоров’я та оцінка ситуації із забезпеченням охорони психічного здоров’я в контексті конфлікту на сході України. Опитування охоплює дві групи громадян України: внутрішньо переміщених осіб і населення України в цілому. Застосовано змішану методику, що включає опитування ВПО (n=1000) і населення в цілому (n=1000), а також експертні інтерв'ю із фахівцями з питань підтримки психічного здоров’я й представниками доброчинних та міжна-родних організацій (n=21).
description: This work was partly supported by the Arts and Humanities Research Council UK with the Partnership for Conflict, Crime and Security Research, project 'Ukraine's hidden tragedy: understanding the outcomes of population displacement from the country's war torn regions' under grant AH/P008305/1
ASSESSMENT OF THE QUALITY OF HIGHER EDUCATION (THEORETICAL ASPECT)
Creators: name: Rudometova, L.
Publisher: name: The Scientific Heritage
Year: 2022
Subjects: educational environment
quality of education
performance criteria
structure
educational process
quality component
self-examination
self-assessment
system of internal and external assessment.

description: This article presents the results of research work obtained in the framework of the scientific topic "Criteria and indicators for assessing the quality of education: experience, problems, prospects." The concept of the educational environment and its content are considered. The criteria for assessing the effectiveness of the quality of higher education have been determined. The conditions for the successful implementation of the educational environment in the educational process of a modern university, which will improve the quality of both training and self-education of students and the effectiveness of the formation of professional competencies of future specialists, are indicated.
Essays on individual decision making and recoverability of preferences
Creators: name: Zrill, Lanny Reuben
Publisher: name: University of British Columbia
Year: 2016

description: A decision maker’s preferences are revealed through their choices, hence a desirable method for recovering preferences should take into account as much preference information as is available. In the context of choice from convex budget sets, we introduce the Money Metric Index (MMI) which recovers parameters that minimize the inconsistency between a decision maker's revealed preferences and the rankings implied by a given parametric family of utility functions. This approach differs from statistical methods which discard much of this preference information and select parameters based on a comparison between observed and predicted choices alone. Additionally, the MMI has many practical advantages: it is simple to compute, it can accommodate non-convex preferences, and it can be decomposed into separate measures of inconsistency and mis-specification. In Chapter 2, we compare these methods for recovering parameters using a two-stage experimental design. We use the data from the first part of the experiment to construct choices in the second part that can be used to evaluate the predictive success of the two methods. We find that, in all cases, the MMI outperforms the statistical method in terms of its ability to accurately predict subject choices. Additionally, we find substantial evidence of First-Order Risk Aversion, both with respect to the recovered parameters and through direct inspection of subject choices. The final chapter approaches this problem from a different perspective by considering to what extent decision makers are capable of making consistent choices in a laboratory context. We implement a simple experiment in order to assess the effect of computational difficulty on a decision maker's propensity to randomize their choices. We find substantial evidence of stochastic choice when subjects have limited time and computational resources available. An implication of our findings is that observed anomalous behavior in laboratory experiments involving choice under risk may be the result of ambiguity attitudes arising from the computational difficulty of the task rather than risk attitudes.
Testing formation mechanisms of the Milky Way's thick disc with RAVE
Creators: name: Wilson, Michelle
name: Helmi, Amina
name: Morrison, H. L.
name: Breddels, M. A.
name: Bienayme, O.
name: Binney, J.
name: Bland-Hawthorn, J.
name: Campbell, R.
name: Freeman, K. C.
name: Fulbright, J. P.
name: Gibson, B. K.
name: Gilmore, G.
name: Grebel, E. K.
name: Munari, U.
name: Navarro, J. F.
name: Parker, Q. A.
name: Reid, W.
name: Seabroke, G.
name: Siebert, A.
name: Siviero, A.
name: Steinmetz, M.
name: Williams, M. E. K.
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: We study the eccentricity distribution of a thick disc sample of stars observed in the Radial Velocity Experiment (RAVE) and compare it to that expected in four simulations of thick disc formation in the literature (accretion of satellites, heating of a primordial thin disc during a merger, radial migration, and gas-rich mergers), as compiled by Sales et al. (2009). We find that the distribution of our sample is peaked at low eccentricities and falls off smoothly and rather steeply to high eccentricities. This distribution is fairly robust to changes in distances, thin disc contamination, and the particular thick disc sample used. Our results are inconsistent with what is expected for the pure accretion simulation, since we find that the dynamics of local thick disc stars implies that the majority must have formed "in situ". Of the remaining models explored, the eccentricity distribution of our stars appears to be most consistent with the gas-rich merger case.
description: 8 pages, 7 figures, submitted to MNRAS
Second-order polaron resonances in self assembled quantum dots
Creators: name: Kaczmarkiewicz, Piotr
name: Machnikowski, Paweł
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We theoretically study the optical properties of an InAs/GaAs quantum dot (QD) near the area of the second-order resonance between an electron confined in the QD and two longitudinal optical phonons. We present the absorption spectra of an inhomogeneously broadened QD ensemble and show that the minimal model needed for an accurate description of such a system needs to account for 3-phonon states. We study also the influence of the QD height to width ratio on the optical properties of the polaron system. The dependence of the width of the resonance and the position of the second-order resonant feature on the height to width ratio is presented.
description: 4 pages, 3 figures
Direct observation of charge order in triangular metallic AgNiO2 by single-crystal resonant X-ray scattering
Creators: name: Pascut, G. L.
name: Coldea, R.
name: Radaelli, P. G.
name: Bombardi, A.
name: Beutier, G.
name: Mazin, I. I.
name: Johannes, M. D.
name: Jansen, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report resonant X-ray scattering measurements on the orbitally-degenerate triangular metallic antiferromagnet 2H-AgNiO2 to probe the spontaneous transition to a triple-cell superstructure at temperatures below 365 K. We observe a strong resonant enhancement of the supercell reflections through the Ni K-edge. The empirically extracted K-edge shift between the crystallographically-distinct Ni sites of 2.5(3) eV is much larger than the value expected from the shift in final states, and implies a core-level shift of ~1 eV, thus providing direct evidence for the onset of spontaneous honeycomb charge order in the triangular Ni layers. We also provide band-structure calculations that explain quantitatively the observed edge shifts in terms of changes in the Ni electronic energy levels due to charge order and hybridization with the surrounding oxygens.
description: 5 pages, 4 figures
Supplementary document for 640 nm red InGaN nanowire LED with external quantum efficiency of 2.3% directly grown on p-Si (111) - 6354286.pdf
Creators: name: Pan, Xingchen
name: Song, Jiaxun
name: Hong, Hao
name: Luo, Mingrui
name: Noetzel, Richard
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplemental Materials
FEATURES OF PROJECT ACTIVITY WITH PRESCHOOL CHILDREN
Creators: name: Saduakasova, A.
name: Malekbaeva, A.
Publisher: name: The Scientific Heritage
Year: 2022
Subjects: project
design
design technology
pedagogical innovation
collaboration
independent work
motivation
pedagogical technology.

description: Today in education the priority role is played by methods and technologies of training which activity has productive, creative, search character. Here in the first place is the project activity of pupils. Project activity of preschool children is a unique tool of cooperation between children and adults and a way to implement an individual approach to education, contributes to the integration of educational areas in the pedagogical process. In this article the method of designing preschool education is considered. The article defines the features of project activities in preschool education. Stages of project activity are defined. It also describes the joint work of children with a teacher in project activities. Project, project words are given explanations. The paper reflects the ways and methods of implementation of project activities in the PO.
РАЗВИТИЕ ВЫСШЕГО ОБРАЗОВАНИЯ В УСЛОВИЯХ ЦИФРОВОЙ ТРАНСФОРМАЦИИ
Creators: name: Хонсаидова, Мактуба
name: Файзиллоева, Дилафруз
name: Казибекова, Нургуль
name: Ермакова, Акмарал
Publisher: name: Zenodo
Year: 2025

description: В статье рассматриваются современные тенденции развития высшего образования в контексте цифровой трансформации. Анализируются ключевые аспекты внедрения цифровых технологий, их влияние на качество образовательного процесса, доступность знаний и эффективность управления образовательными учреждениями. Приводятся примеры успешных цифровых решений, применяемых в университетах различных стран.
Learning through action with embodied education : a multisensory component analysis in an early literacy skills intervention
Creators: name: Bartfai, Jamie M.
Publisher: name: University of British Columbia
Year: 2015

description: Multisensory components have been used across various educational approaches for many decades; however, the specific contribution of multisensory components is not well documented or explained, especially from an embodied education approach. Thus, an investigation of the effectiveness of adding a multisensory component (i.e., sandpaper letters) to an early literacy skills intervention (i.e., modified Road to the Code program; Blachman, Ball, Black, & Tangle, 2000) was conducted. To accomplish this, a multiple-baseline multiple-sequence design was used with six kindergarten students identified as needing remediating instruction, comparing instruction with and without the multisensory component while keeping instructional time constant. It was hypothesized that participants would show greater gains in early literacy skills (i.e., naming letters, segmenting words into phonemes, and decoding phonetically regular words) following the intervention with the multisensory component, compared to the intervention without. The addition of a multisensory component (i.e., sandpaper letters) was time efficient and simple to implement, and appeared to result in differential growth for at least some students. Given that the addition of a modest multisensory component appeared to assist some students in improving their early literacy skills, results were consistent with theories of embodied cognition and suggested that a more robust multisensory intervention could be worth developing and researching further.
Studies of B to J/Psi decay with the forward silicon vertex detector (FVTX) at the PHENIX experiment
Creators: name: Li, Xuan
Publisher: name: Zenodo
Year: 2021
Subjects: wwnd17
phenix
fvtx
b-meson
J/Ψ
p+p
cu+au
heavy flavor
au+au
raa
nuclear
modification
elliptic
flow
energy loss
vtx
dimuon
dca
charm
bottom

description: Talk presented at the Winter Workshop on Nuclear Dynamics 2017 conference
The Ginzburg-Landau theory in application
Creators: name: Milošević, M. V.
name: Geurts, R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A numerical approach to Ginzburg-Landau (GL) theory is demonstrated and we review its applications to several examples of current interest in the research on superconductivity. This analysis also shows the applicability of the two-dimensional approach to thin superconductors and the re-defined effective GL parameter kappa. For two-gap superconductors, the conveniently written GL equations directly show that the magnetic behavior of the sample depends not just on the GL parameter of two bands, but also on the ratio of respective coherence lengths.
description: To be published in Physica C, VORTEX VI Conference Proceedings
Counting Self-Dual Interval Orders
Creators: name: Jelínek, Vít
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: In this paper, we present a new method to derive formulas for the generating functions of interval orders, counted with respect to their size, magnitude, and number of minimal and maximal elements. Our method allows us not only to generalize previous results on refined enumeration of general interval orders, but also to enumerate self-dual interval orders with respect to analogous statistics. Using the newly derived generating function formulas, we are able to prove a bijective relationship between self-dual interval orders and upper-triangular matrices with no zero rows. Previously, a similar bijective relationship has been established between general interval orders and upper-triangular matrices with no zero rows and columns.
description: 20 pages
Trauma and recovery: cognitive approaches to trauma narrative in three post-9/11 novels
Creators: name: Xu, Yan
Publisher: name: Macquarie University
Year: 2022
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: The terrorist attacks of 9/11 gave rise to a new literary sub-genre, post-9/11 literature, which has considerably influenced the recent history of modern American literature. Post-9/11 literature mainly delineates a panoramic picture of anxiety and fear in the Western world. The characters in these novels experience different presentations of post-traumatic stress disorder. They are then rehabilitated with recuperative tools through various means such as empathy, dialogic communication and epistolary writing. Some novels concentrate on telling the stories of the collective or individual traumatic experience in the aftermath of 9/11, where the characters are suffering from spiritual and survival crisis, and thus are seeking a salvation journey to mental recuperation. Some works set New York City as the backdrop to an urban elegy; some fictions explore the topic from a political perspective, such as discussing the relationship of democracy and politics, foreign policy and terrorism. This thesis analyses the trauma narrative in three selected post-9/11 novels: Johnathan Safran Foer’s Extremely Loud and Incredibly Close, Don DeLillo’s Falling Man, and Joseph O’Neill’s Netherland through the lens of cognitive poetics—mainly from the theories of textual world, possible world, deictic shift, conceptual metaphor and conceptual blending. Cognitive poetics is an innovative theoretical approach, especially suited to investigate trauma narrative. The thesis combines psychological trauma theory with cognitive poetics to understand how 9/11 novelists reproduce the catastrophic 9/11 experiences in literary form and how these stories reflect the process of transferring traumatic memories into traumatic narrative. The primary concern is not simply how post-9/11 fictions create meaning through the representation of 9/11 trauma, but also how 9/11 trauma narratives are understood and interpreted by readers. This project aims to provide a clear and holistic understanding of the intricacies of the three post-9/11 fictions and help refine the methodology of cognitive poetics.
Qubit state monitoring by measurement of three complementary observables
Creators: name: Ruskov, Rusko
name: Korotkov, Alexander N.
name: Mølmer, Klaus
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the evolution of a spin 1/2 (qubit) under the simultaneous continuous measurement of three non-commuting qubit operators sigma_x, sigma_y, sigma_z. For identical ideal detectors the qubit state evolves by approaching a pure state with a random direction in the Bloch vector space and by undergoing locally isotropic diffusion in the perpendicular directions. The quantum state conditioned on the complete detector record is used to assess the fidelity of classically inspired estimates based on running time averages and discrete time bin detector outputs.
description: 5 pages, 4 figures
Milwaukee Wholesale Fresh Fruit and Vegetable Market Facilities
Creators: name: Overheim, Richard K.
name: Schwier, Marlon L.
name: Overheim, Richard K.
name: Schwier, Marlon L.
Publisher: name: Unknown
Year: 1964
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Production Economics
subject: Research and Development/Tech Change/Emerging Technologies

description: Excerpts from the report: The wholesale fresh fruit and vegetable market of Milwaukee is divided into two areas: The Broadway Street market, located at Broadway and Detroit Streets, and Central Market, at Fifth and Vliet Streets. In Milwaukee, as in other market areas of the country, wholesale fresh fruit and vegetable facilities which many dealers occupy were neither designed nor intended to be used for wholesale food distribution. Many of the present facilities were built before modern motor and rail transportation was available. In the fall of 1963, this study was undertaken at the request of the city of Milwaukee and the Milwaukee Fresh Fruit and Vegetable Advertising Council, in cooperation with the Wisconsin State Department of Agriculture. This study has the following objectives: To analyze the present wholesale fresh fruit and vegetable operations in Milwaukee. To estimate the major costs of handling fresh fruits and vegetables under present conditions. To determine facilities and possible sites needed for efficient wholesale marketing of these products. To estimate the cost of constructing new facilities. To estimate potential savings or benefits which may accrue from any suggested improvements.
NH and Mg Index Trends in Elliptical Galaxies
Creators: name: Serven, Jedidiah
name: Worthey, Guy
name: Toloba, Elisa
name: Sánchez-Blázquez, Patricia
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We examine the spectrum in the vicinity of the NH3360 index of Davidge & Clark (1994), which was defined to measure the NH absorption around 3360 Åand which shows almost no trend with velocity dispersion (Toloba et al. 2009), unlike other N- sensitive indices, which show a strong trend (Graves et al. 2007). Computing the effect of individual elements on the integrated spectrum with synthetic stellar population integrated spectra, we find that, while being well correlated with nitrogen abundance, NH3360 is almost equally well anti-correlated with Mg abundance. This prompts the definition of two new indices, Mg3334, which is mostly sensitive to magnesium, and NH3375, which is mostly sensitive to nitrogen. Rather surprisingly, we find that the new NH3375 index shows a trend versus optical absorption feature indices that is as shallow as the NH3360 index. We hypothesize that the lack of a strong index trend in these near-UV indices is due to the presence of an old metal-poor component of the galactic population. Comparison of observed index trends and those predicted by models shows that a modest fraction of an old, metal-poor stellar population could easily account for the observed flat trend in these near-UV indices, while still allowing substantial N abundance increase in the larger galaxies.
description: 19 pages, 6 figures, 6 tables
Time-Integrated Searches for Point-like Sources of Neutrinos with the 40-String IceCube Detector
Creators: name: The IceCube Collaboration
name: Abbasi, R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the results of time-integrated searches for astrophysical neutrino sources in both the northern and southern skies. Data were collected using the partially-completed IceCube detector in the 40-string configuration between 2008 April 5 and 2009 May 20, totaling 375.5 days livetime. An unbinned maximum likelihood ratio method is used to search for astrophysical signals. The data sample contains 36,900 events: 14,121 from the northern sky, mostly muons induced by atmospheric neutrinos and 22,779 from the southern sky, mostly high energy atmospheric muons. The analysis includes searches for individual point sources and targeted searches for specific stacked source classes and spatially extended sources. While this analysis is sensitive to TeV-PeV energy neutrinos in the northern sky, it is primarily sensitive to neutrinos with energy greater than about 1 PeV in the southern sky. No evidence for a signal is found in any of the searches. Limits are set for neutrino fluxes from astrophysical sources over the entire sky and compared to predictions. The sensitivity is at least a factor of two better than previous searches (depending on declination), with 90% confidence level muon neutrino flux upper limits being between E^2 dN/dE ~ 2 - 200 \times 10^-12 TeV cm^-2 s^-1 in the northern sky and between 3 -700 \times 10^-12 TeV cm^-2 s^-1 in the southern sky. The stacked source searches provide the best limits to specific source classes. The full IceCube detector is expected to improve the sensitivity to E^-2 sources by another factor of two in the first year of operation.
description: 44 pages, 21 figures. Submitted to the Astrophysical Journal
Nonessential amino acid metabolism in humans
Creators: name: Cooper, Leah
Publisher: name: University of British Columbia
Year: 2015

description: Nutritionally, there is a dietary requirement for the essential amino acids (EAA) but also a requirement for nitrogen (N) intake for the de novo synthesis of the nonessential amino acids (NEAA). It has been suggested that some NEAA may be more metabolically important than others. The first study (Glutamate Requirement Study) aims to examine the application of the indicator amino acid oxidation (IAAO) technique to determine if a dietary requirement for glutamate exists in adult humans. The second study (NEAA Study) aims to determine the metabolic demand of nine of the NEAA (Ala, Arg, Asn, Asp, Gln, Glu, Gly, Pro, Ser) as an ideal N source using the IAAO technique. Seven subjects were maintained on an adaptation diet for 2 days prior to each test day. Each subject participated in two or eleven test diet intakes, assigned randomly, in the glutamate study and the NEAA study, respectively. In the glutamate study, the diets corresponded to the amino acid pattern present in egg protein, in which all glutamate and glutamine was present as glutamate, or removed, with serine used to make the diets isonitrogenous. In the NEAA Study, one test intake was a base diet consisting of only the EAA provided at the recommended dietary allowance. All other test intakes involved the base diet with the addition of one NEAA to meet a 50:50 ratio of EAA: NEAA on a N basis. Each study day followed the IAAO protocol using L-[1-¹³C]-Phenylalanine as the indicator. Breath and urine samples were collected at baseline and isotopic steady state. Enrichments of ¹³C in breath were analyzed by isotope ratio mass spectrometry to calculate F¹³CO₂. In the glutamate study, a paired-samples t-test did not find a significant difference between the F¹³CO₂ in response to the two glutamate intakes. In the NEAA study, repeated measures ANOVA with post hoc multiple comparisons showed that seven of the nine NEAA decrease IAAO significantly. Thus the results suggest that in healthy adults, there is no dietary requirement for glutamate, and that most NEAA are good N sources, in the presence of adequate EAA.
A transient component in the pulse profile of PSR J0738-4042
Creators: name: Karastergiou, Aris
name: Roberts, Steve J.
name: Johnston, Simon
name: Lee, Hyoung-joo
name: Weltevrede, Patrick
name: Kramer, Michael
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: One of the tenets of the radio pulsar observational picture is that the integrated pulse profiles are constant with time. This assumption underpins much of the fantastic science made possible via pulsar timing. Over the past few years, however, this assumption has come under question with a number of pulsars showing pulse shape changes on a range of timescales. Here, we show the dramatic appearance of a bright component in the pulse profile of PSR J0738-4042 (B0736-40). The component arises on the leading edge of the profile. It was not present in 2004 but strongly present in 2006 and all observations thereafter. A subsequent search through the literature shows the additional component varies in flux density over timescales of decades. We show that the polarization properties of the transient component are consistent with the picture of competing orthogonal polarization modes. Faced with the general problem of identifying and characterising average profile changes, we outline and apply a statistical technique based on a Hidden Markov Model. The value of this technique is established through simulations, and is shown to work successfully in the case of low signal-to-noise profiles.
description: Accepted for publication in MNRAS
EDI - addressing accessibility and re-usability of highly variable ecological data
Creators: name: Gries, Corinna
name: Servilla, Mark
name: O'Brien, Margaret
name: Vanderbilt, Kristin
name: Costa, Duane
name: Smith, Colin
name: Grossman Clarke, Susanne
name: Waide, Robert
name: Hanson, Paul
Publisher: name: Zenodo
Year: 2018
Subjects: data repository
open data
open science
metadata
environment
ecology
Environmental Data Initiative

description: The Environmental Data Initiative (EDI) is a data curation center and data archive for the ecological research community. Its goal is to accelerate the curation, archiving, and dissemination of environmental data. “FAIR” principles (Findable, Accessible, Interoperable, Reusable) are implemented by providing a registered and trustworthy data repository for long-term preservation and data integrity while documenting data with rich science metadata to enable discovery, access, reuse, and integration. The EDI data repository has been in operation for over five years and was built based on almost 40 years of data management experience gained in the NSF Long-Term Ecological Research (LTER) Program. It currently houses over 42,000 data sets from LTER, biological field stations and many other NSF funded projects. 42,000 data sets is a large number, however, their combined size of about 9 terabyte and individual size of bytes to megabyte and rarely gigabytes is not. Hence, the ‘big data’ challenges EDI faces are highly variable data in structure, spatial and temporal scales, sampling methods, parameters measured, and semantics of the metadata. E.g., a simple search for ‘biodiversity’ returns well over 500 data sets and each one is unique in its sampling methods, data structure and parameter naming.
description: Funding: NSF DBI-1629233 and NSF DBI-1565103
Two-dimensional homography-based correction of positional errors in widefield MRT images
Creators: name: Nayak, Arvind
name: Daiboo, Soobash
name: Shankar, N. Udaya
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: A steradian of the southern sky has been imaged at 151.5 MHz using the Mauritius Radio Telescope (MRT). These images show systematics in positional errors of sources when compared to source positions in the Molonglo Reference Catalogue (MRC). We have applied two-dimensional homography to correct for systematic positional errors in the image domain and thereby avoid re-processing the visibility data. Positions of bright (above 15-σ) point sources, common to MRT catalogue and MRC, are used to set up an over-determined system to solve for the homography matrix. After correction the errors are found to be within 10% of the beamwidth for these bright sources and the systematics are eliminated from the images. This technique will be of relevance to the new generation radio telescopes where, owing to huge data rates, only images after a certain integration would be recorded as opposed to raw visibilities. It is also interesting to note how our investigations cued to possible errors in the array geometry. The analysis of positional errors of sources showed that MRT images are stretched in declination by ~1 part in 1000. This translates to a compression of the baseline scale in the visibility domain. The array geometry was re-estimated using the astrometry principle. The estimates show an error of ~1 mm/m, which results in an error of about half a wavelength at 150 MHz for a 1 km north-south baseline. The estimates also indicate that the east-west arm is inclined by an angle of ~40 arcsec to the true east-west direction.
description: 9 pages, 8 figures, accepted for publication in MNRAS
Supplementary figures. from Identification of PP2A-B55 targets uncovers regulation of Emerin during nuclear envelope reassembly in Drosophila
Creators: name: Emond-Fraser, Virginie
name: Larouche, Myreille
name: Kubiniok, Peter
name: Bonneil, Éric
name: Li, Jingjing
name: Bourouh, Mohammed
name: Frizzi, Laura
name: Thibault, Pierre
name: Archambault, Vincent
Publisher: name: The Royal Society
Year: 2023

description: Contains 5 figures along with their titles and legends.
LIB 301 Essay.docxFourth Idustrial Revolution and its impact on Librarians and Information Professionals
Creators: name: Chipuka, Tinashe
Publisher: name: figshare
Year: 2021
Subjects: subject: 80706 Librarianship
subject: FOS: Media and communications
subject: Library and Information Studies

description: Online preprint on the Fourth Industrial Revolution and it’s impact on the livelihood of Librarians and Information professionals. It places emphasis on the challenges and opportunities created by the Fourth Industrial Revolution.An essay on what is the fourth industrial revolution and what challenges and opportunities did it create for librarians and information professionals
Interference of coherent spin waves in micron-sized ferromagnetic waveguides
Creators: name: Pirro, Philipp
name: Brächer, Thomas
name: Vogt, Katrin
name: Obry, Björn
name: Schultheiss, Helmut
name: Leven, Britta
name: Hillebrands, Burkard
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present experimental observations of the interference of spin-wave modes propagating in opposite directions in micron-sized NiFe-waveguides. To monitor the local spin-wave intensity distribution and phase of the formed interference pattern, we use Brillouin light scattering microscopy. The two-dimensional spin-wave intensity map can be understood by considering the interference of several waveguide eigenmodes with different wavevectors quantized across the width of the stripe. The phase shows a transition from linear dependence on the space coordinate near the antennas characteristic for propagating waves to discrete values in the center region characteristic for standing waves.
Coupled-Mode Theory of Field Enhancement in Complex Metal Nanostructures
Creators: name: Sun, Gregory
name: Khurgin, Jacob
name: Bratkovsky, Alexander M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We describe a simple yet rigorous theoretical model capable of analytical estimation of plasmonic field enhancement in complex metal structures. We show that one can treat the complex structures as coupled multi-pole modes with highest enhancements obtained due to superposition of high order modes in small particles. The model allows one to optimize the structures for the largest possible field enhancements, which depends on the quality factor Q of the metal and can be as high as Q^2 for two spherical particles. The "hot spot" can occur either in the nano-gaps between the particles or near the smaller particles. We trace the optimum field enhancement mechanism to the fact that the extended dipole modes of larger particles act as the efficient antennas while the modes in the gaps or near the smaller particles act as the compact sub-wavelength cavities. We also show how easily our approach can be extended to incorporate large numbers of particles in intricate arrangements.
description: 23 pages, 7 figures
Disproportionation and Metallization at Low-Spin to High-Spin Transition in Multiorbital Mott Systems
Creators: name: Kunes, Jan
name: Krapek, Vlastimil
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the thermally driven spin state transition in a two-orbital Hubbard model with crystal field splitting, which provides a minimal description of the physics of LaCoO3. We employ the dynamical mean-field theory with quantum Monte-Carlo impurity solver. At intermediate temperatures we find a spin disproportionated phase characterized by checkerboard order of sites with small and large spin moments. The high temperature transition from the disproportionated to a homogeneous phase is accompanied by vanishing of the charge gap. With the increasing crystal-field splitting the temperature range of the disproportionated phase shrinks and eventually disappears completely.
description: 4+ pages, 4 figures
Synthetic applications of zirconium and titanium amidate complexes
Creators: name: Yim, Jacky Chun-Ho
Publisher: name: University of British Columbia
Year: 2015

description: The use of titanium or zirconium amidate complexes as either reagents or catalysts for targeted applications is described herein. The investigation is focused on a novel class of zirconocene amidate hydride complexes primarily used for the hydrozirconation reaction and a previously disclosed bis(amidate) bis(amido) titanium complex for the regioselective alkyne hydroamination reaction. A novel class of zirconocene amidate hydride complexes is synthesized and characterized. The amidate binding mode is significantly influenced by sterics. A rare example of an equilibrium between the structural isomers where the amidate ligand adopts either the κ¹ O-bound or κ² is shown. Reaction of styrene with these complexes resulted in the formation of the branched insertion products, which is in contrast to the observed regioselectivity when the well-known Schwartz’s reagent is used. Asymmetric insertion was attempted with a complex bearing an amidate ligand with a stereocenter. Reactivity with other alkenes and phenylacetylene were explored. Under harsh reaction conditions, the zirconocene amidate hydride complexes undergo a halide exchange reaction with phenyl halides. A competition experiment suggests two separate mechanistic pathways for styrene insertion and halide exchange. A primary kinetic isotope effect suggests Zr─H cleavage is involved in the rate-determining step. Experimental evidence is consistent with a coordination-insertion mechanistic proposal. The synthetic utility of a previously reported bis(amidate) bis(amido) titanium complex for the regioselective alkyne hydroamination reaction is further explored. The reactivity and regioselectivity of hydroamination with benchmark substrates using this bis(amidate) titanium complex is directly compared to other titanium based hydroamination catalysts. The substrate scope of this bis(amidate) titanium hydroamination catalyst is extended to include more difficult substrates, such as protected propargyl alcohols. Modifications to the reaction protocol allow for facile bench-top use. The bis(amidate) titanium complex was applied to tandem sequential reactions featuring hydroamination to afford secondary amines, a primary amine and a substituted primary allylamine. This hydroamination catalyst is also used for the oligomerization of alkynylanilines. By tuning the alkynylaniline monomer, a soluble N-containing oligomer was synthesized, which shows a degree of conjugation. This bis(amidate) titanium hydroamination catalyst was employed to assemble a small library of aminoether compounds targeted as T-type calcium channel blockers.
LIB 301 Essay.docx
Creators: name: Chipuka, Tinashe
Publisher: name: figshare
Year: 2021
Subjects: subject: 80706 Librarianship
subject: FOS: Media and communications
subject: Library and Information Studies

description: Online preprint on the Fourth Industrial Revolution and it’s impact on the livelihood of Librarians and Information professionals. It places emphasis on the challenges and opportunities created by the Fourth Industrial Revolution.
Coupled nonlinear oscillators: metamorphoses of amplitude profiles. The case of the approximate effective equation
Creators: name: Kyziol, Jan
name: Okninski, Andrzej
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: 14H20, 58K05

description: We study dynamics of two coupled periodically driven oscillators. Important example of such a system is a dynamic vibration absorber which consists of a small mass attached to the primary vibrating system of a large mass. Periodic solutions of the approximate effective equation are determined within the Krylov-Bogoliubov-Mitropolsky approach to get the amplitude profiles $AOmega) $. Dependence of the amplitude $A$ of nonlinear resonances on the frequency $ Ω$ is much more complicated than in the case of one Duffing oscillator and hence new nonlinear phenomena are possible. In the present paper we study metamorphoses of the function $A(Ω) $ induced by changes of the control parameters.
description: 13 pages, 9 figures
Magnetically actuated MEMS devices for active control of cell migration
Creators: name: Khademolhosseini, Farzad
Publisher: name: University of British Columbia
Year: 2015

description: The ability of living cells to sense and respond to mechanical cues from the surrounding environment has been the subject of much study. Over the past two decades, a variety of techniques have been used to apply mechanical stimuli and investigate cell response. Recently, with advances in the field of Microelectromechanical Systems, devices incorporating microscale actuators have been developed to apply forces and study the cell response of individual cells. Among these microdevices, micropillar arrays incorporating remotely actuated magnetic pillars have shown some success as combined actuation and sensing platforms for cell strain studies. However, issues associated with the complex fabrication techniques used, the low actuation forces generated and the high magnetic field gradients required for pillar actuation have hindered the wide-scale adoption of these devices by the general research community. Consequently, investigation into the use of these active micropatterned surfaces in eliciting or controlling specific cellular response on a multicellular level has yet to be undertaken. This thesis aims to investigate the application of remotely actuated micropillar surfaces in controlling the migration behavior of cells on a multicellular level. First, using a novel custom-made magnetically actuated cell strain assessment tool, conventional tests are performed on endothelial cells to determine the minimum strain requirements for eliciting cell response. Then, a new technique for fabrication and patterning of magnetic micropillar arrays is developed to overcome the complexities of previous fabrication methods. Using the newly developed fabrication technique, magnetic micropillar arrays of various dimensions are fabricated and their mechanical, magnetic and material properties are characterized. The fabricated magnetic micropillars generate forces of several hundred nanonewtons at moderate magnetic fields of 100mT and are favorable to previous state-of-the-art. Finally, a cell migration chip comprising various micropillar topologies is developed and the migration behavior and migration rates of sheets of cells on the micropillar surfaces in the presence and absence of micropillar actuation is studied using in-vitro experiments. We show that actuated micropillar surfaces significantly impede cell migration, reducing cell migration rates by up to 85%. The magnetically actuated micropillar surfaces could have possible in-vivo applications for preventing cell-migration induced biofouling of medical implants.
Feasibility of Shipping California Table Grapes in Fiberboard and Polystyrene Foam Boxes and in Polyethylene Mesh Bags
Creators: name: Hinsch, Robert Tom
name: Rij, Roger E.
name: Hinsch, Robert Tom
name: Rij, Roger E.
Publisher: name: Unknown
Year: 1970
Subjects: subject: Crop Production/Industries
subject: Labor and Human Capital
subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies

description: Excerpts from the report: Practically all the table grapes sold in the United States are produced in California. The crown-packed wood box, usually packed with 26 pounds of table grapes, has been the most commonly used container for shipping grapes to market. Over the years, shippers made many individual changes in grape shipping containers, with the result that 18 sizes of containers with many variations in container construction and accessory packing materials are now in use for loose-packing grapes. Moreover, the trend toward offering more prepackaged produce for sale in retail stores has led to increased demand from retailers for grapes packaged in consumer-size units. The purpose of this study was to find out (1) how much the cost of marketing table grapes could be reduced if they were packed and shipped in fiberboard or polystyrene foam boxes instead of in wood boxes, (2) how much more it would cost to prepackage grapes in polyethylene mesh bags than to pack them loose in wood boxes, and (3) how consumers would react to buying grapes prepackaged in mesh bags.