cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the Matter of the Dijkgraaf--Vafa Conjecture
Creators: name: Kraus, Per
name: Shigemori, Masaki
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: With the aim of extending the gauge theory -- matrix model connection to more general matter representations, we prove that for various two-index tensors of the classical gauge groups, the perturbative contributions to the glueball superpotential reduce to matrix integrals. Contributing diagrams consist of certain combinations of spheres, disks, and projective planes, which we evaluate to four and five loop order. In the case of $Sp(N)$ with antisymmetric matter, independent results are obtained by computing the nonperturbative superpotential for $N=4,6$ and 8. Comparison with the Dijkgraaf-Vafa approach reveals agreement up to $N/2$ loops in matrix model perturbation theory, with disagreement setting in at $h=N/2+1$ loops, $h$ being the dual Coxeter number. At this order, the glueball superfield $S$ begins to obey nontrivial relations due to its underlying structure as a product of fermionic superfields. We therefore find a relatively simple example of an ${\cal N}=1$ gauge theory admitting a large $N$ expansion, whose dynamically generated superpotential differs from the one obtained in the matrix model approach.
description: 20 pages, harvmac. v2: added comments and references
Selection of Strategic Options in Allocating the Development of Entrepreneurial Organizations
Creators: name: Kalac, Becir
name: Masovic, Irma
name: Ahmatovic, Amela
name: Kalac, Becir
name: Masovic, Irma
name: Ahmatovic, Amela
Publisher: name: Unknown
Year: 2017
Subjects: subject: Community/Rural/Urban Development
subject: Development
subject: Strategy
subject: Strategic options
subject: Strategic selection
subject: Optimal selection
subject: Rating Strategy

description: Uncertain and turbulent environment in which modern entrepreneurial organizations operate, constantly require from their owners or their top managers – not only business adjustment to the specific situation but also the mental one. During the mentioned adjustment, strategic options with the aim of selecting the optimal strategic performance must be considered and evaluated. It is performances that will provide a stable and prosperous development for an organization.
Stacking fault energy prediction for austenitic steels: thermodynamic modeling vs. machine learning
Creators: name: Wang, Xin
name: Xiong, Wei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Stacking fault energy (SFE) is of the most critical microstructure attribute for controlling the deformation mechanism and optimizing mechanical properties of austenitic steels, while there are no accurate and straightforward computational tools for modeling it. In this work, we applied both thermodynamic modeling and machine learning to predict the stacking fault energy (SFE) for more than 300 austenitic steels. The comparison indicates a high need of improving low-temperature CALPHAD (CALculation of PHAse Diagrams) databases and interfacial energy prediction to enhance thermodynamic model reliability. The ensembled machine learning algorithms provide a more reliable prediction compared with thermodynamic and empirical models. Based on the statistical analysis of experimental results, only Ni and Fe have a moderate monotonic influence on SFE, while many other elements exhibit a complex effect that their influence on SFE may change with the alloy composition.
description: 14 pages, 2 tables, and 4 figures
Democratization in eLearning Before and During COVID-19 : A Foucauldian Discourse Analysis
Creators: name: Jazienicki, Amy Heidi
Publisher: name: The University of British Columbia
Year: 2021

description: This paper aims to evaluate the viability of ‘democratizing’ eLearning within the global neoliberal economy. ‘Democratization’ is examined through several focus areas, namely the digital divide, socioeconomic status, gender, and social justice in curricula. These facets of ‘democratization’ are scrutinized specifically through corporate and university eLearning discourse, focusing principally on adult learners. The central objective is to determine to what extent eLearning can be ‘democratized’ for 21st century learners. The COVID-19 pandemic has catapulted eLearning to the forefront of education and has been urgently implemented globally across corporations, higher educational institutions, and K-12 schools. eLearning discourse has been imbued with terms such as ‘accessibility’, ‘flexibility’, and ‘engagement’. The paper explores how these discourses could be reconstituted to live up to the promises of ‘democratization’ through Foucauldian Discourse Analysis (FDA), and asserts that policymakers, post-secondary institutions, and companies must cultivate learning environments in which learners’ full inclusion and development is prioritized.
Amortizing and Accreting Caps and Floors Valuation
Creators: name: Lee, David
Publisher: name: Zenodo
Year: 2020
Subjects: amortizing cap, amortizing floor, accreting cap, accreting floor, Interest rate cap, interest rate floor, caplet, floorlet, valuation, Black model, finance, financial product

description: An amortizing cap is an interest rate cap whose notional principal amount declines during the life of the contract whereas an accreting cap is an interest rate cap whose notional principal amount increases during the life of the contract. Similarly, an amortizing floor is an interest rate floor whose notional principal amount declines during the life of the contract whereas an accreting floor is an interest rate floor whose notional principal amount increases during the life of the contract.
description: https://ia801504.us.archive.org/12/items/ir-amortizing-cap-25/IrAmortizingCap-25.pdf
What Goes Around, Comes Around: We Must All be Data Curators Now
Creators: name: Burnhill, Peter
Publisher: name: Zenodo
Year: 2006

description: Data archives and data libraries emerged in order to deal with the born-digital, having a mix of mission with respect to re-use, re-purposing, and the historic record. Focus in the social and policy sciences has been on the stewardship of datasets that were generated as part of the research process, whether in academic, government, or commercial domains. The last decade or so has seen emergence of digitisation programmes for 'born-again' digital surrogates, data-sharing in the life and physical sciences, and corporate concerns with digital asset value and legal compliance. There is now a confluence of institutional repositories and self-publishing, with attempt to manage this within the context of the evolution of digital library provision. These generate challenges in terms of what constitutes best practice for those within IASSIST who provide data for others to thresh. Key to this is value-added activity, both in the curation of datasets for which there is stewardship and in the delivery of services, re-working the mixed mission of re-use, re-purposing, and historic record. Examples will be drawn from the operation and forward planning for Edinburgh University Data Library, EDINA National Data Centre, and the Digital Curation Centre.
Leaf wax n-alkanes in leaves, litter, and surface soil in a low diversity, temperate deciduous angiosperm forest, Central Missouri, USA
Creators: name: Stout, Scott A.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: The leaf wax n-alkanes in modern ecosystems serve as proxies for assessing the ecologic and climatic conditions in soils, sediments and other geologic archives, and potentially as baselines for future ecological changes. In this study, the concentrations and distributions of long-chain (C25-C35) n-alkanes in fresh mature leaves, leaf litter fall, and surface soil (0-5 cm) from 0.4 ha, low diversity (oak-hickory-maple), deciduous angiosperm forest are quantified. Owing to degradation and dilution, leaf litter (350 ± 227 μg/g dw) and soil (13 ± 13 μg/g dw) each contain significantly lower concentrations of long-chain n-alkanes than fresh mature leaves (574 ± 291 μg/g dw). The average chain length and odd-even predominance (OEP) of fresh mature leaves increased and decreased, respectively, in leaf litter and soil indicating preferential and progressive degradation of the more abundant C27 and C29 homologues relative to less abundant C31 and C33 homologues. A poor relationship between OEP and a normalised n-alkane ratio(s) demonstrates the large potential effects of inter- and inner-species variability and/or varying effects of degradation on leaf wax n-alkanes, and highlights the potential limitations of the endmember modelling in paleo reconstructions.
Additional file 1 of Efficacy of the treatment with dapagliflozin and metformin compared to metformin monotherapy for weight loss in patients with class III obesity: a randomized controlled trial
Creators: name: Ferreira-Hermosillo, Aldo
name: Molina-Ayala, Mario
name: Molina-Guerrero, Diana
name: Garrido-Mendoza, Ana
name: Ramírez-Rentería, Claudia
name: Mendoza-Zubieta, Victoria
name: Etual Espinosa
name: Mercado, Moisés
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Computational Biology

description: Additional file 1. Checklist for the report of study protocols according SPIRIT.
Preparation, Characterization of Novel Cadmium-Based Metal-Organic Framework for Using as a Highly Selective and Sensitive Modified Carbon Paste Electrode in Determination of Cu(II) Ion
Creators: name: Deghadi, Reem G.
name: Eliwa, Ayman S.
name: Ali, Aya E.
name: Hosny, Wafaa M.
name: Gehad G. Mohamed
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Inorganic Chemistry

description: A new organic linker Schiff base (H2L) derived from 4-aminobenzoic acid and 2-carboxybenzaldehyde has been successfully synthesized and characterized. The synthesized linker Schiff base was designed to be used in preparation of a new cadmium-based metal-organic framework (Cd-MOF) by sonochemical synthesis, and characterized by using Fourier-transform infrared spectroscopy (FT-IR), powder X-ray diffraction (PXRD), Brunauer-Emmett-Teller (BET), scanning electron microscope (SEM), energy dispersive X-ray (EDX), and thermal analysis. Under an optimum set of synthesis conditions, uniform cubic crystals with average size 44–69 nm and a Langmuir surface area of 163.461 m2/g were produced within 60–75 min by crystal system orthorhombic. The synthesized Cd-MOF was incorporated as an ionophore in a carbon paste electrode for Cu(II) ion determination in different real water samples. The proposed carbon paste electrode showed a Nernstian slope of 30.15 ± 0.35 mV decade−1 covering a linear range of 1.0 × 10−7 – 1.0 × 10−1 mol L−1 and the detection limit was 7.5 × 10−8 mol L−1 with long-time stability of more than two months over pH range of 2.5–6.5 and fast response time of 10 s. The proposed sensor was highly selective for Cu(II) ions. The synthesized Cd-MOF had mesoporous structure and this supported the mechanism of Cu(II) ion successful determination.
Additional file 2 of Hypoglycemia symptoms and awareness of hypoglycemia in type 1 diabetes mellitus: cross-cultural adaptation and validation of the Portuguese version of three questionnaires and evaluation of its risk factors
Creators: name: Stefenon, Paula
name: Silveira, André
name: Giaretta, Luana
name: Cristiane Leitão
name: Bauer, Andrea
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Marine Biology
subject: Science Policy

description: Additional file 2. Portuguese version of the questionnaires. Translated, cross-cultural adapted and validated versions of the Portuguese questionnaires: A) Clarke questionnaire, B) Gold questionnaire and, C) Edinburgh Hypoglycemia Symptom Scale.
Business Scam in Cyber Space
Creators: name: Bogavac, Zivanka Miladinovic
name: Bogavac, Zivanka Miladinovic
Publisher: name: Unknown
Year: 2017
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: security
subject: technologies
subject: human factor
subject: fraud

description: Security can very easily be compromised by human factors. Human fantasy, stupidity, and ignorance of security rules are often key factors that contribute to security breaches. As more advanced security technologies are developed that make it difficult to find technical failures, attackers are increasingly turning to the human factor as a central element in the information and communication infrastructure, without which computers or networks cannot function without which. The use of human weaknesses often does not require any investment and implies a minimal risk. It is precisely these circumstances that led to the emergence of Nigerian fraud and its existence in cyber space for two decades.
1/N Expansion for Horava-Lifshitz like four-fermion models
Creators: name: Gomes, M.
name: Mariz, T.
name: Nascimento, J. R.
name: Petrov, A. Yu.
name: da Silva, A. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a class of four-fermion Gross-Neveu like models in four dimensions with critical exponents $z=2$ and $z=3$. The models with $z=2$ are known to be perturbatively nonrenormalizable but are shown to be renormalizable in the context of the $1/N$ expansion. We calculate explicitly the effective potential for these models.
description: 12 pages
Against Legal Secression of Albanian Minors in Serbian Autonomous Kosovo and Meohija and Economic Implications
Creators: name: Jerotijevic, Dusan
name: Jerotijevic, Dusan
Publisher: name: Unknown
Year: 2017
Subjects: subject: Community/Rural/Urban Development
subject: national minorities
subject: Kosovo and Metohija
subject: Albanians
subject: Serbia
subject: NATO

description: National minorities in Yugoslavia after the Second World War experience different treatments. The German minority was almost completely evicted for participating in the war on the side of Nazi Germany. On the other hand, the Siptar minority (later Albanian) is expanding its living space to the expense of the Serbian people, which, even by legal acts, forbids return to the area from which Serbs were expelled in World War II. Albanians are given absolute authority on the territory of AP Kosovo and Metohija. At the same time, large numbers of Albanians from Albania are allowed to enter this region. Throughout the period since the end of the Second World War, the disappearance of Serbs from Kosovo and Metohija and some other areas where the Albanians were numerous has continued to this day. The constitutional legal development of the SFRY from 1946 to 1974 sets the legal basis for the break-up of Serbia. The last act of de facto separation of Kosovo and Metohija from Serbia was NATO aggression in 1999.
The LEADS Database at ICPSR: Identifying Important Social Science Studies for Archiving
Creators: name: Pienta, Amy
Publisher: name: Zenodo
Year: 2006

description: The National Science Foundation (NSF) and National Institutes of Health (NIH) have funded a large number of social science data collections over the last several decades. ICPSR, as part of the Data Preservation Alliance for the Social Sciences (Data-PASS) project, has undertaken a systematic review of grant awards made by NSF and NIH with a major goal of determining the extent to which important social science data have been collected, but not preserved or archived. We have found that the majority of data collections produced by NIH and NSF awards have not been archived. Our preliminary results from this project suggest that there are many reasons that data are not archived. The benefits of developing and implementing a data archiving plan at early parts of the data life cycle will also be discussed.
Application of peaks theory to the abundance of primordial black holes
Creators: name: Young, Sam
name: Musso, Marcello
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the application of peaks theory to the calculation of the number density of peaks relevant for primordial black hole (PBH) formation. For PBHs, the final mass is related to the amplitude and scale of the perturbation from which it forms, where the scale is defined as the scale at which the compaction function peaks. We therefore extend peaks theory to calculate not only the abundance of peaks of a given amplitude, but peaks of a given amplitude and scale. A simple fitting formula is given in the high-peak limit relevant for PBH formation. We also adapt the calculation to use a Gaussian smoothing function, ensuring convergence regardless of the choice of power spectrum.
Resolving the Host Galaxy of the Nearby QSO I Zw 1 with Sub-Arcsecond Multi-Transition Molecular Line Observations
Creators: name: Staguhn, J. G.
name: Schinnerer, E.
name: Eckart, A.
name: Scharwächter, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first sub-kpc 0.7" (~ 850 pc) resolution 12CO(1-0) molecular line observations of the ISM in the host galaxy of the QSO I Zw 1. The observations were obtained with the BIMA mm-interferometer in its compact A configuration. The BIMA data are complemented by new observations of the 12CO(2-1) and 13CO(1-0) line with IRAM Plateau de Bure mm-interferometer (PdBI) at 0.9" and 1.9" resolution, respectively. These measurements, which are part of a multi-wavelength study of the host galaxy of I Zw 1, are aimed at comparing the ISM properties of a QSO host with those of nearby galaxies as well as to obtain constraints on galaxy formation/evolution models. Our images of the 12CO(1-0) line emission show a ring-like structure in the circumnuclear molecular gas distribution with an inner radius of about 1.2 kpc. The presence of such a molecular gas ring was predicted from earlier lower angular resolution PdBI 12CO(1-0) observations. A comparison of the BIMA data with IRAM PdBI 12CO(2-1) observations shows variations in the excitation conditions of the molecular gas in the innermost 1.5" comprising the nuclear region of I Zw 1. The observed properties of the molecular cloud complexes in the disk of the host galaxy suggest that they can be the sites of massive circumnuclear star formation, and show no indications of excitation by the nuclear AGN. This all indicates that the molecular gas in a QSO host galaxy has similar properties to the gas observed in nearby low luminosity AGNs.
description: to be published in ApJ 1 July 2004 issue
Two Documents, Three Legs, and Five Stages: Developing an Organizational Response to Digital Preservation Requirements
Creators: name: McGovern, Nancy
Publisher: name: Zenodo
Year: 2006

description: Recent developments in digital preservation provide organizations with a framework, useful perspectives, and some tools for responding to the challenges of preserving digital content over time. To build an effective digital preservation program, an institution requires a three-legged stool consisting of an organizational infrastructure, a technological infrastructure, and a resources framework. Based on the "Digital Preservation Management: Implementing Short-term Strategies to Long-term Problems" workshop and tutorial developed by Cornell University Library, this paper reviews core components of a digital preservation program, highlights key standards and documents (focusing on Trusted Digital Repositories: Attributes and Responsibilities and Open Archival Information System standard), describes a five-stage maturity model for the incremental development of a digital preservation program, and incorporates the results from institutional readiness surveys completed by workshop participants.
Additional file 1 of Hypoglycemia symptoms and awareness of hypoglycemia in type 1 diabetes mellitus: cross-cultural adaptation and validation of the Portuguese version of three questionnaires and evaluation of its risk factors
Creators: name: Stefenon, Paula
name: Silveira, André
name: Giaretta, Luana
name: Cristiane Leitão
name: Bauer, Andrea
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Marine Biology

description: Additional file 1. Translation and cross-cultural adaptation steps of the questionnaires. Summarized table of the process of the translation and cross-cultural adaptation of the questionnaires.
Softly broken conformal symmetry with higher curvature terms
Creators: name: Chakraborty, Sumanta
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: In a scalar-coupled-gravity model, the quadratically divergent counter term appearing in the mass renormalization of the scalar fields must inherit corrections arising out of gravitational interactions. In this work we have explicitly demonstrated that there are no such corrections of gravitational origin to the quadratic divergences in the mass counter terms. This statement holds true irrespective of the nature of the gravitational interaction, i.e., whether gravity is described by general relativity or f(R) theory. Interestingly, it also turns out that the one loop effective action of scalar-coupled-gravity system will be well-behaved \emph{if and only if} the $f(R)$ theory is free from ghosts. In particular, the results derived in the context of f(R) theory are shown to be in exact agreement with the corresponding results derived from the equivalent scalar-tensor representation. Our analysis suggests the tantalizing possibility that the masses of the scalar fields can be consistently kept smaller than some Ultra Violet (UV) cutoff scale and is independent of the nature of the gravity theory, which may involve higher curvature corrections. All these will be true provided the matter fields and the gravity theory can be embedded consistently into a UV complete theory at the Planck scale.
description: v2, 21 pages, no figures, published in PRD
Additional file 2 of Effects of the Informed Health Choices podcast on the ability of parents of primary school children in Uganda to assess the trustworthiness of claims about treatment effects: one-year follow up of a randomised trial
Creators: name: Semakula, Daniel
name: Nsangi, Allen
name: Oxman, Andrew
name: Oxman, Matt
name: Austvoll-Dahlgren, Astrid
name: Rosenbaum, Sarah
name: Morelli, Angela
name: Glenton, Claire
name: Lewin, Simon
name: Nyirazinyoye, Laetitia
name: Kaseje, Margaret
name: Chalmers, Iain
name: Fretheim, Atle
name: Rose, Christopher
name: Sewankambo, Nelson
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: Plant Biology

description: Additional file 2: Table S1. Results for each concept one year after listening to the podcast. Table S2. Intended behaviours. Table S3. Self-efficacy. Table S4. Self-reported behaviour - awareness of treatment claims. Table S5. Self-reported behaviour - assessment of the basis of treatment claims. Table S6. Self-reported behaviour - assessment of trustworthiness of treatment claims. Table S7. Self-reported behaviour - assessment of advantages and disadvantages of treatments. Table S8. Subgroup analyses - education. Table S9. Subgroup analyses - child in school that used IHC primary school resources. Table S10. Effect of IHC primary school resources on parents.
Temperature Dependent Electronic Structure in a Higher Order Topological Insulator Candidate EuIn$_2$As$_2$
Creators: name: Regmi, Sabin
name: Hosen, Md Mofazzel
name: Ghosh, Barun
name: Singh, Bahadur
name: Dhakal, Gyanendra
name: Sims, Christopher
name: Wang, Baokai
name: Kabir, Firoza
name: Dimitri, Klauss
name: Liu, Yangyang
name: Agarwal, Amit
name: Lin, Hsin
name: Kaczorowski, Dariusz
name: Bansil, Arun
name: Neupane, Madhab
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The higher order topological insulator (HOTI) has enticed enormous research interests owing to its novelty in supporting gapless states along the hinges of the crystal. Despite several theoretical predictions, enough experimental confirmation of HOTI state in crystalline solids is still lacking. It has been well known that interplay between topology and magnetism can give rise to various magnetic topological states including HOTI and Axion insulator states. Here using the high-resolution angle-resolved photoemission spectroscopy (ARPES) combined with the first-principles calculations, we report a systematic study on the electronic band topology across the magnetic phase transition in EuIn2As2 which possesses an antiferromagnetic ground state below 16 K. Antiferromagnetic EuIn2As2 has been predicted to host both the Axion insulator and HOTI phase. Our experimental results show the clear signature of the evolution of the topological state across the magnetic transition. Our study thus especially suited to understand the interaction of higher order topology with magnetism in materials.
description: 6 pages, 4 figures
Allelopathic influence of low concentration Microcystis aeruginosa on Egeria densa under different light intensities
Creators: name: M. D. H. Jayasanka Senavirathna
name: Guligena Muhetaer
name: Zhaozhi, Liu
name: Fujino, Takeshi
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: In this study, Egeria densa plants were exposed to a low concentration of (OD730 = 0.04) Microcystis aeruginosa for seven days, under different photosynthetically active radiation (PAR) intensities (0, 50, 100, 200, and 300 µmol m−2 s−1). Experiments were conducted under controlled conditions inside incubators. The H2O2 content, antioxidant responses, pigmentation, and chlorophyll fluorescence parameters were measured. The biochemical parameters of E. densa varied with PAR intensity; under the 50 and 100 µmol m−2 s−1 PAR intensities, E. densa performed relatively better than under other intensities. When exposed to M. aeruginosa, the levels of the measured biochemical parameters reduced in E. densa. Under unfavourable light conditions, the optical density of M. aeruginosa was also reduced when E. densa was also present. Even at low concentrations, the presence of M. aeruginosa in the water can have a negative effect on E. densa pigmentation and physiological parameters, though E. densa also has negative effects on M. aeruginosa growth. Further studies are recommended to evaluate the responses of E. densa after prolonged exposure to M. aeruginosa and the effects of E. densa on M. aeruginosa.
Effect of dissolved oxygen concentration (microaerobic and aerobic) on community structure and activity of culturable heterotrophic nitrifying bacteria in activated sludge
Creators: name: Xueyu Zhang
name: Shaokui Zheng
name: Rujun Wang
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified

description: To investigate the community structures and heterotrophic nitrifying activities of culturable heterotrophic nitrifying bacteria (HNB) in activated sludge, two sludge samples, cultivated at aerobic (2.5–4.0 mg·L−1 dissolved oxygen) and microaerobic conditions (0.5–1.0 mg·L−1 dissolved oxygen) respectively, were analyzed by isolation, purification, sequencing, and phylogenetic analysis. Ultimately, 48 and 50 effective 16S rDNA sequences (representing >80% of the total colonies on an agar plate) were collected from the two samples, from which seven and eight operational taxonomic units (OTUs) were obtained, respectively. All OTU-identified isolates showed typical heterotrophic nitrification, including six reported and six previously undescribed HNB species. The two culturable HNB 16S rDNA sequence libraries exhibited significant differences in the diversity and relative abundance of culturable HNB species. The microaerobic conditions encouraged a more diverse culturable HNB community in activated sludge compared to aerobic conditions.
Sign Flip Triangulations of the Amplituhedron
Creators: name: Kojima, Ryota
name: Langer, Cameron
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We present new triangulations of the $m=4$ amplituhedron relevant for scattering amplitudes in planar $\mathcal{N}=4$ super-Yang-Mills, obtained directly from the combinatorial definition of the geometry. Using the "sign flip" characterization of the amplituhedron, we reproduce the canonical forms for the all-multiplicity next-to-maximally helicity violating (NMHV) and next-to-next-to-maximally helicity violating ($\text{N}^2$MHV) tree-level as well as the NMHV one-loop cases, without using any input from traditional amplitudes methods. Our results provide strong evidence for the equivalence of the original definition of the amplituhedron \cite{Arkani-Hamed:2013jha} and the topological one \cite{Arkani-Hamed:2017vfh}, and suggest a new path forward for computing higher loop amplitudes geometrically. In particular, we realize the NMHV one-loop amplituhedron as the intersection of two amplituhedra of lower dimensionality, which is reflected in the novel structure of the corresponding canonical form.
description: 38 pages, 5 figures
Producing Archive-Ready Datasets: Compliance, Incentives, and Motivation
Creators: name: Hedstrom, Margaret
Publisher: name: Zenodo
Year: 2006

description: Digital archiving assumes some degree of cooperation between data producers and data archives. Experience shows that current incentives are insufficient to overcome the obstacles that data producers report to providing complete and accurate documentation with their data. A multidisciplinary team of experts in digital archiving, social science research, and experimental economics at the School of Information and ICPSR are investigating ways to increase cooperation between producers and archives. With their government partner, the National Institute of Justice, researchers use multiple methods (surveys and experiments) to identify barriers to compliance, revise guidelines and responsibilities, and develop and test alternative incentive mechanisms. This presentation will report on initial findings from a survey about the obstacles that data producers face when they deposit data in an archive.nbsp;
Correlation-aware Unsupervised Change-point Detection via Graph Neural Networks
Creators: name: Zhang, Ruohong
name: Hao, Yu
name: Yu, Donghan
name: Chang, Wei-Cheng
name: Lai, Guokun
name: Yang, Yiming
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: I.2.6

description: Change-point detection (CPD) aims to detect abrupt changes over time series data. Intuitively, effective CPD over multivariate time series should require explicit modeling of the dependencies across input variables. However, existing CPD methods either ignore the dependency structures entirely or rely on the (unrealistic) assumption that the correlation structures are static over time. In this paper, we propose a Correlation-aware Dynamics Model for CPD, which explicitly models the correlation structure and dynamics of variables by incorporating graph neural networks into an encoder-decoder framework. Extensive experiments on synthetic and real-world datasets demonstrate the advantageous performance of the proposed model on CPD tasks over strong baselines, as well as its ability to classify the change-points as correlation changes or independent changes. Keywords: Multivariate Time Series, Change-point Detection, Graph Neural Networks
description: Accepted for publication in the International Conference on Neural Information Processing (ICONIP) 2020 Original paper is 12 pages, additional appendix is available on arxiv
Multistable Pulse-like Solutions in a Parametrically Driven Ginzburg-Landau Equation
Creators: name: Barashenkov, I. V.
name: Cross, S.
name: Malomed, Boris A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: It is well known that pulse-like solutions of the cubic complex Ginzburg-Landau equation are unstable but can be stabilised by the addition of quintic terms. In this paper we explore an alternative mechanism where the role of the stabilising agent is played by the parametric driver. Our analysis is based on the numerical continuation of solutions in one of the parameters of the Ginzburg-Landau equation (the diffusion coefficient $c$), starting from the nonlinear Schrödinger limit (for which $c=0$). The continuation generates, recursively, a sequence of coexisting stable solutions with increasing number of humps. The sequence "converges" to a long pulse which can be interpreted as a bound state of two fronts with opposite polarities.
description: 13 pages, 6 figures; to appear in PRE
Scaled Projected-Directions Methods with Application to Transmission Tomography
Creators: name: Mestdagh, Guillaume
name: Goussard, Yves
name: Orban, Dominique
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 49M15, 90C25, 90C90, 92C55

description: Statistical image reconstruction in X-Ray computed tomography yields large-scale regularized linear least-squares problems with nonnegativity bounds, where the memory footprint of the operator is a concern. Discretizing images in cylindrical coordinates results in significant memory savings, and allows parallel operator-vector products without on-the-fly computation of the operator, without necessarily decreasing image quality. However, it deteriorates the conditioning of the operator. We improve the Hessian conditioning by way of a block-circulant scaling operator and we propose a strategy to handle nondiagonal scaling in the context of projected-directions methods for bound-constrained problems. We describe our implementation of the scaling strategy using two algorithms: TRON, a trust-region method with exact second derivatives, and L-BFGS-B, a linesearch method with a limited-memory quasi-Newton Hessian approximation. We compare our approach with one where a change of variable is made in the problem. On two reconstruction problems, our approach converges faster than the change of variable approach, and achieves much tighter accuracy in terms of optimality residual than a first-order method.
description: 19 pages, 7 figures
Additional file 1 of Effects of the Informed Health Choices podcast on the ability of parents of primary school children in Uganda to assess the trustworthiness of claims about treatment effects: one-year follow up of a randomised trial
Creators: name: Semakula, Daniel
name: Nsangi, Allen
name: Oxman, Andrew
name: Oxman, Matt
name: Austvoll-Dahlgren, Astrid
name: Rosenbaum, Sarah
name: Morelli, Angela
name: Glenton, Claire
name: Lewin, Simon
name: Nyirazinyoye, Laetitia
name: Kaseje, Margaret
name: Chalmers, Iain
name: Fretheim, Atle
name: Rose, Christopher
name: Sewankambo, Nelson
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. The Claim Evaluation Tools.
Additional file 5 of A scoping review of full-spectrum knowledge translation theories, models, and frameworks
Creators: name: Rosmin Esmail
name: Hanson, Heather M
name: Jayna Holroyd-Leduc
name: Brown, Sage
name: Strifler, Lisa
name: Straus, Sharon E
name: Niven, Daniel
name: Clement, Fiona
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 5: Table S5. Full-spectrum KT theories, models, and frameworks that fit More than one Theoretical Approach Category (n = 4)
Monitoring the injured spinal cord
Creators: name: Cheung, Amanda
Publisher: name: The University of British Columbia
Year: 2022

description: Amanda Cheung, a UBC 3MT Semi-Finalist, presents their research on a non-invasive sensor they developed using Near-Infrared Spectroscopy, or NIRS, to monitor oxygen levels in spinal cord tissues in real time. They hope, with further testing, this new technology will be a tool to help doctors better treat spinal cord injury. Amanda Cheung is completing their PhD in Neuroscience under the supervision of Dr. Brian Kwon and Dr. Babak Shadgan.
Electronic Correlation and Geometrical Frustration in Molecular Solids -- A Systematic ab initio Study of $β^\prime$-$X$[Pd(dmit)$_{2}$]$_{2}$
Creators: name: Misawa, Takahiro
name: Yoshimi, Kazuyoshi
name: Tsumuraya, Takao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We systematically derive low-energy effective Hamiltonians for molecular solids $β^\prime$-$X$[Pd(dmit)$_{2}$]$_{2}$ ($X$ represents a cation) using ab initio density functional theory calculations and clarify how the cation controls the inter-dimer transfer integrals and the interaction parameters. The effective models are solved using the exact diagonalization method and the antiferromagnetic ordered moment is shown to be significantly suppressed around the spin-liquid candidate of $X$=EtMe$_{3}$Sb, which is reported in experiments. We also show that both the geometrical frustration and the off-site interactions play essential roles in the suppression of antiferromagnetic ordering. This systematic derivation and analysis of the low-energy effective Hamiltonians offer a firm basis to clarify the nature of the quantum spin liquid found in $β^\prime$-EtMe$_{3}$Sb[Pd(dmit)$_{2}$]$_{2}$.
description: 11 pages, 11 figures, 1 table
Fifty-fold improvement in the number of quantum degenerate fermionic atoms
Creators: name: Hadzibabic, Z.
name: Gupta, S.
name: Stan, C. A.
name: Schunck, C. H.
name: Zwierlein, M. W.
name: Dieckmann, K.
name: Ketterle, W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We have produced a quantum degenerate Li-6 Fermi gas with up to 7 x 10^7 atoms, an improvement by a factor of fifty over all previous experiments with degenerate Fermi gases. This was achieved by sympathetic cooling with bosonic Na-23 in the F=2, upper hyperfine ground state. We have also achieved Bose-Einstein condensation of F=2 sodium atoms by direct evaporation.
The colors and sizes of recently quenched galaxies: a result of compact starburst before quenching
Creators: name: Wu, Po-Feng
name: van der Wel, Arjen
name: Bezanson, Rachel
name: Gallazzi, Anna
name: Pacifici, Camilla
name: Straatman, Caroline M. S.
name: Barisic, Ivana
name: Bell, Eric F.
name: Chauke, Priscilla
name: D'Eugenio, Francesco
name: Franx, Marijn
name: Muzzin, Adam
name: Sobral, David
name: van Houdt, Josha
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We analyze the colors and sizes of 32 quiescent (UVJ-selected) galaxies with strong Balmer absorption ($\mbox{EW}(Hδ) \geq 4$Å) at $z\sim0.8$ drawn from DR2 of the LEGA-C survey to test the hypothesis that these galaxies experienced compact, central starbursts before quenching. These recently quenched galaxies, usually referred to as post-starburst galaxies, span a wide range of colors and we find a clear correlation between color and half-light radius, such that bluer galaxies are smaller. We build simple toy models to explain this correlation: a normal star-forming disk plus a central, compact starburst component. Bursts with exponential decay timescale of $\sim$~100 Myr that produce $\sim10\%$ to more than 100\% of the pre-existing masses can reproduce the observed correlation. More significant bursts also produce bluer and smaller descendants. Our findings imply that when galaxies shut down star formation rapidly, they generally had experienced compact, starburst events and that the large, observed spread in sizes and colors mostly reflects a variety of burst strengths. Recently quenched galaxies should have younger stellar ages in the centers; multi-wavelength data with high spatial resolution are required to reveal the age gradient. Highly dissipative processes should be responsible for this type of formation history. While determining the mechanisms for individual galaxies is challenging, some recently quenched galaxies show signs of gravitational interactions, suggesting that mergers are likely an important mechanism in triggering the rapid shut-down of star-formation activities at $z\sim0.8$.
description: 16 pages, 8 figures, 1 table, accepted by ApJ
Role of NADH-dependent chromium reductases, exopolysaccharides and antioxidants by Paenibacillus thiaminolyticus PS 5 against damage induced by reactive oxygen species
Creators: name: Parvaze Ahmad Wani
name: Wahid, Shazia
name: Rafi, Nusrat
name: Uzma Wani
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Cr (VI) being used in various activities of industries and its improper treatment lead to contamination of environment. Among different methods, biological is the most efficient method to control pollution from soils affected with metals. Present study was designed to assess the role of Paenibacillus thiaminolyticus PS5 for adsorption, Cr (VI) reduction and mechanism of reduction. Sorption of chromium (VI) by strain PS5 was obtained by batch equilibrium method. Cr (VI) reduction in both free and immobilised cells were evaluated by 1,5-Diphenyl Carbazide method. The formation of biofilm by Paenibacillus thiaminolyticus PS5 was observed for colour change as well as quantified spectrophotometrically. Analysis kits were used to measure the amount of eDNA, superoxide and malondialdehyde (MDA). Metal resistant strain PS5 was characterised as P. thiaminolyticus using 16S rRNA gene sequence. Maximum biosorption of Cr (VI) by strain PS5 was found at pH 6–8 and 100–400 µgCr/mL within 24 hours of incubation. Complete reduction of Cr (VI) by strain PS5 was achieved at pH 6–8 and100–300 µg/mL Cr (VI). Paenibacillus thiaminolyticus PS5 immmobilisation on sodium alginate and polyvinyl alcohol facilitated complete reduction of Cr (VI) within 18 hours due to the formation of more biofilm under metal stress conditions. Strain PS5 reduced almost all Cr (VI) into Cr (III) in supernatant, most of which was immobilised by cell debris. Experiments confirmed the reduction of Cr (VI) by cytosolic cell-free extracts which is a mechanism of detoxification. The release of exopolysaccharides and antioxidants by strain PS5 played a protective role against cell damage by Cr (VI) as Cr (VI) could not release the significant amount of eDNA, superoxide and MDA. The present study proved strain PS5 to be a super bioinoculant which has great capacity for adsorption, biotransformation and can activate cytosolic reductases, exopolysaccharides and antioxidants against oxidative damage.
A back-end, CMOS compatible ferroelectric Field Effect Transistor for synaptic weights
Creators: name: Halter, Mattia
name: Bégon-Lours, Laura
name: Bragaglia, Valeria
name: Sousa, Marilyne
name: Offrein, Bert Jan
name: Abel, Stefan
name: Luisier, Mathieu
name: Fompeyriney, Jean
Publisher: name: arXiv
Year: 2020
Subjects: subject: Emerging Technologies (cs.ET)
subject: Applied Physics (physics.app-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Neuromorphic computing architectures enable the dense co-location of memory and processing elements within a single circuit. This co-location removes the communication bottleneck of transferring data between separate memory and computing units as in standard von Neuman architectures for data-critical applications including machine learning. The essential building blocks of neuromorphic systems are non-volatile synaptic elements such as memristors. Key memristor properties include a suitable non-volatile resistance range, continuous linear resistance modulation and symmetric switching. In this work, we demonstrate voltage-controlled, symmetric and analog potentiation and depression of a ferroelectric Hf$_{57}$Zr$_{43}$O$_{2}$ (HZO) field effect transistor (FeFET) with good linearity. Our FeFET operates with a low writing energy (fJ) and fast programming time (40 ns). Retention measurements have been done over 4-bits depth with low noise (1%) in the tungsten oxide (WO$_{x}$) read out channel. By adjusting the channel thickness from 15nm to 8nm, the on/off ratio of the FeFET can be engineered from 1% to 200% with an on-resistance ideally >100 kOhm, depending on the channel geometry. The device concept is using earth-abundant materials, and is compatible with a back end of line (BEOL) integration into complementary metal-oxidesemiconductor (CMOS) processes. It has therefore a great potential for the fabrication of high density, large-scale integrated arrays of artificial analog synapses.
description: 14 pages, 5 figures, supplementary information available, submitted to ACS Applied Materials & Interfaces