cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nonparametric vs parametric binary choice models: An empirical investigation
Creators: name: Bontemps, Christophe
name: Racine, Jeffrey S.
name: Simioni, Michel
name: Bontemps, Christophe
name: Racine, Jeffrey S.
name: Simioni, Michel
Publisher: name: Unknown
Year: 2009
Subjects: subject: Research Methods/ Statistical Methods
subject: Binary choice models
subject: Nonparametric estimation
subject: specification test
subject: tap water demand

description: The estimation of conditional probability distribution functions (PDFs) in a kernel nonparametric framework has recently received attention. As emphasized by Hall, Racine and Li (2004), these conditional PDFs are extremely useful for a range of tasks including modelling and predicting consumer choice. The aim of this paper is threefold. First, we implement nonparametric kernel estimation of PDF with a binary choice variable and both continuous and discrete explanatory variables. Second, we address the issue of the performances of this nonparametric estimator when compared to a classic on-the-shelf parametric estimator, namely a probit. We propose to evaluate these estimators in terms of their predictive performances, in the line of the recent "revealed performance" test proposed by Racine and Parmeter (2009). Third, we provide a detailed discussion of the results focusing on environmental insights provided by the two estimators, revealing some patterns that can only be detected using the nonparametric estimator.
The effective temperature scale of FGK stars. I. Determination of temperatures and angular diameters with the infrared flux method
Creators: name: Ramirez, Ivan
name: Melendez, Jorge
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The infrared flux method (IRFM) has been applied to a sample of 135 dwarf and 36 giant stars covering the following regions of the atmospheric parameters space: 1) the metal-rich ([Fe/H]>0) end (consisting mostly of planet-hosting stars), 2) the cool (Teff<5000 K) metal-poor (-1
description: To appear in ApJ. For online tables and figures, see http://webspace.utexas.edu/ir68/teff
Sensitivity of welfare effects estimated by equilibrium displacement model: a biological productivity growth for semi-subsistence crop in Sub-Sahara African market with high transactions costs
Creators: name: Takeshima, Hiroyuki
name: Takeshima, Hiroyuki
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Food Security and Poverty
subject: International Development
subject: Productivity Analysis
subject: Research Methods/ Statistical Methods
subject: equilibrium displacement model
subject: pivotal shift
subject: cassava
subject: semi-subsistence
subject: market margins
subject: double buffering

description: This paper discusses the application of the equilibrium displacement model (EDM) to estimate ex-ante the welfare effects of biological productivity growth for semi-subsistence crop and its impact on poverty reduction. The conventionally used EDM is compared with an alternative model (alternative EDM) that reflects arguably more realistic assumptions for African semi-subsistence crops, such as the shape and shift of supply curve, significant margins due to high transportation costs between farmgate and consumption market, as well as between different consumption markets, and the degree of precisions of estimated structural parameters. The application to the dataset for Benin cassava farmers provides an example that the conventional EDM may significantly overestimate the total welfare gains, and may also lead to very different interpretation of how pro-poor the technology is.
The potential impact of the Doha Development Agenda on the South African economy: liberalising OECD agriculture and food trade
Creators: name: Nyhodo, Bonani
name: Punt, Cecilia
name: Vink, Nick
name: Nyhodo, Bonani
name: Punt, Cecilia
name: Vink, Nick
Publisher: name: Unknown
Year: 2009
Subjects: Agricultural and Food Policy

description: This article reports the results of a static computable general equilibrium (CGE) model on the possible liberalisation of agriculture and food trade in the OECD countries. Liberalisation of trade was simulated assuming a reduction in import tariffs, the tax rate on factor use and export subsidies in four steps of 25% points each. Such simulations were run in the GLOBE model then adjusted and used as a policy shock to the PROVIDE model. The results show that the weighed average world price (adjusted) changes will range between -19.6 to +3.8% for imports and between -3.0 and +29.7% for exports at 75% liberalisation. The results from the single country CGE model show that the South African economy would respond positively to the world price changes, with government and macro variables showing minimal but positive responses. Household consumption expenditures generally show positive changes, implying increased factor incomes. Not all sectors will be positively affected even though the overall effect is positive.
Additional file 1 of Attention-deficit/hyperactivity disorder with developmental coordination disorder: 24-year follow-up of a population-based sample
Creators: name: Landgren, Valdemar
name: Fernell, Elisabeth
name: Gillberg, Christopher
name: Landgren, Magnus
name: Johnson, Mats
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1.
Preferential Growth of Pt on Rutile TiO2
Creators: name: Iddir, Hakim
name: Skavysh, Vladimir
name: Ogut, Serdar
name: Browning, Nigel D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The characterization of Pt/TiO2 (Degussa P25) catalyst system using atomic resolution Z-contrast images and electron energy loss spectroscopy in the scanning transmission electron microscope has recently revealed that Pt particles have a strong tendency to nucleate on the rutile phase of TiO2 rather than anatase. Comparative ab initio pseudopotential calculations for Pt and Pt_2 on the stoichiometric and reduced TiO2 surfaces, and oxygen vacancy (V_O) formation energies are performed to address the microscopic origin of this finding. The results, which show that Pt actually binds more strongly to anatase surfaces, indicate that the selective growth of Pt on rutile must be controlled by the lower formation energy of V_O on rutile, and possibly by the stronger tendency of V_O sites on rutile to trap large Pt clusters compared to anatase.
description: 4 Pages, 3 figures, 1 table
The Higgs Mechanism in Heterotic Orbifolds
Creators: name: Forste, Stefan
name: Nilles, Hans Peter
name: Wingerter, Akin
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study spontaneous gauge symmetry breaking in the framework of orbifold compactifcations of heterotic string theory. In particular we investigate the electroweak symmetry breakdown via the Higgs mechanism. Such a breakdown can be achieved by continuous Wilson lines. Exploiting the geometrical properties of this scheme we develop a new technique which simplifies the analysis used in previous discussions.
description: 38 pages, 10 figures
Tracking pulsar dispersion measures using the GMRT
Creators: name: Ahuja, A. L.
name: Gupta, Y.
name: Mitra, D.
name: Kembhavi, A. K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper, we describe a novel experiment for the accurate estimation of pulsar dispersion measures using the Giant Metre-wave Radio Telescope. This experiment was carried out for a sample of twelve pulsars, over a period of more than one year (January 2001 to May 2002) with observations about once every fortnight. At each epoch, the pulsar DMs were obtained from simultaneous dual frequency observations, without requiring any absolute timing information. The DM estimates were obtained from both the single pulse data streams and from the average profiles. The accuracy of the DM estimates at each epoch is ~ 1 part in 10^4 or better, making the data set useful for many different kinds of studies. The time series of DM shows significant variations on time scales of weeks to months for most of the pulsars. A comparison of the mean DM values from these data show significant deviations from catalog values (as well as from other estimates in literature) for some of the pulsars, with PSR B1642-03 showing the most notable changes. From our analysis results it appears that constancy of pulsar DMs (at the level of 1 in 10^3 or better) can not be taken for granted. For PSR B2217+47, we see evidence for a large-scale DM gradient over a one year period, which is modeled as being due to a blob of enhanced electron density sampled by the line of sight. For some pulsars, including pulsars with fairly simple profiles like PSR B1642-03, we find evidence for small changes in DM values for different frequency pairs of measurement, a result that needs to be investigated in detail. Another interesting result is that we find significant differences in DM values obtained from average profiles and single pulse data.
description: 10 pages, 7 Postscript figures, to be published in MNRAS
Spectroscopic properties of radio-loud and radio-quiet quasars
Creators: name: Chakraborty, Avinanda
name: Bhattacharjee, Anirban
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Surveys have shown radio-loud (RL) quasars constitute 10%-15% of the total quasar population and rest are radio-quiet (RQ). However, it is unknown if this radio-loud fraction (RLF) remains consistent among different parameter spaces. This study shows that RLF increases for increasing full width half maximum (FWHM) velocity of the H$β$ broad emission line (z < 0.75). To analyse the reason, we compared bolometric luminosity of RL and RQ quasars sample which have FWHM of H$β$ broad emission line greater than 15000km/s (High Broad Line or HBL) with which have FWHM of H$β$ emission line less than 2500km/s (Low Broad Line or LBL). From the distributions we can conclude for the HBL, RQ and RL quasars are peaking separately and RL quasars are having higher values whereas for the LBL the peaks are almost indistinguishable. We predicted selection effects could be the possible reason but to conclude anything more analysis is needed. Then we compared our result with Wills & Browne (1986) and have shown that some objects from our sample do not follow the pattern of the logR vs FWHM plot where R is the ratio of 5 GHz radio core flux density with the extended radio lobe flux density.
description: Proceedings paper of the IAU symposium "Nuclear Activity in Galaxies Across Cosmic Time" (Ethiopia) accepted to be published under the Cambridge University Press, eds. M. Povic, P. Marziani, J. Masegosa, H. Netzer, S. H. Negu, and S. B. Tessema
Additional file 1 of Accurate diagnosis of colorectal cancer based on histopathology images using artificial intelligence
Creators: name: K. S. Wang
name: G. Yu
name: C. Xu
name: X. H. Meng
name: J. Zhou
name: C. Zheng
name: Z. Deng
name: L. Shang
name: R. Liu
name: S. Su
name: X. Zhou
name: Q. Li
name: J. Li
name: J. Wang
name: K. Ma
name: J. Qi
name: Z. Hu
name: P. Tang
name: J. Deng
name: X. Qiu
name: B. Y. Li
name: W. D. Shen
name: R. P. Quan
name: J. T. Yang
name: L. Y. Huang
name: Y. Xiao
name: Z. C. Yang
name: Z. Li
name: S. C. Wang
name: H. Ren
name: C. Liang
name: W. Guo
name: Y. Li
name: H. Xiao
name: Y. Gu
name: J. P. Yun
name: D. Huang
name: Z. Song
name: X. Fan
name: L. Chen
name: X. Yan
name: Z. C. Huang
name: J. Huang
name: J. Luttrell
name: C. Y. Zhang
name: W. Zhou
name: K. Zhang
name: C. Yi
name: C. Wu
name: H. Shen
name: Y. P. Wang
name: H. M. Xiao
name: H. W. Deng
Publisher: name: figshare
Year: 2021
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 1: Supplementary-Text 1.a Collection and digitalization of the WSIs. Supplementary-Text 1.b Dataset-A, B, C and D. Supplementary-Text 1.c Patch-level performance and patient-level accuracy. Supplementary-Text 1.d Comparison of different architectures at patch-level. Supplementary-Text 1.e Comparison of different cluster sizes for aggregation of patch-level results. Supplementary-Table 1. Input patch size for common CNN. Supplementary-Table 2 Pathologist info. Supplementary-Table 3 List of AUCs of AI applied in CRC and other cancer types. Supplementary-Table 4 Overall performance of AI and pathologists in Human-AI contest. Supplementary-Table 5 Cohen’s Kappa coefficient for agreement among human experts and AI. Supplementary-Figure 1 Weakly-labeled and fully-labeled CRC patches. Supplementary-Figure 2.The distribution of cancerous area in multiple independent WSI datasets measured by the proportion of patches (P) containing cancer cells on the WSI. Supplementary-Figure 3 Heatmap produced by AI. Supplementary-Figure 4 Activation map produced by AI.
The Kinetic Energy Density in Kohn-Sham Density Functional Theory
Creators: name: Bhattacharyya, Anirban
name: Furnstahl, R. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: This work continues a program to systematically generalize the Skyrme Hartree-Fock method for medium and heavy nuclei by applying effective field theory (EFT) methods to Kohn-Sham density functional theory (DFT). When conventional Kohn-Sham DFT for Coulomb systems is extended beyond the local density approximation, the kinetic energy density tau is sometimes included in energy functionals in addition to the fermion density. However, a local (semi-classical) expansion of tau is used to write the energy as a functional of the density alone, in contrast to the Skyrme approach. The difference is manifested in different single-particle equations, which in the Skyrme case include a spatially varying effective mass. Here we show how to generalize the EFT framework for DFT derived previously to reconcile these approaches. A dilute gas of fermions with short-range interactions confined by an external potential serves as a model system for comparisons and for testing power-counting estimates of new contributions to the energy functional.
description: 27 pages, 8 figures, some corrections and clarifications
The impact of South African supermarkets on agricultural development in the SADC: a case study in Zambia, Namibia and Botswana
Creators: name: Emongor, Rosemary A.
name: Kirsten, Johann F.
name: Emongor, Rosemary A.
name: Kirsten, Johann F.
Publisher: name: Unknown
Year: 2009
Subjects: Agricultural and Food Policy

description: Supermarkets have expanded rapidly in SADC during the last decade, leading to fears that small-scale farmers and food processors could be excluded from access to urban markets. To assess the impact of supermarket chains on various participants in the supply chain, a survey was carried out in Botswana, Namibia and Zambia in 2004, 2005 and 2007. To determine the factors that influence the choice between the supermarket or traditional market channel and the impact of participation in the supermarket supply chain, a two-step treatment model was used. The results showed that over 80% of all processed food products in Botswana, Namibia and Zambia were imported from South Africa, and that supermarkets used a mixture of procurement systems for fresh fruit and vegetables and processed food products. Participation in the supermarkets channel had a positive impact on small-scale farmers’ incomes. Farmers who supplied fresh fruit and vegetables to supermarkets had a significantly higher income than those who supplied to traditional markets in Zambia. The expansion of South African supermarkets into the SADC countries may be beneficial to small-scale farmers and therefore efforts should be made to incorporate them into the supermarkets’ fresh fruit and vegetable supply chain.
The naturalness in the BLMSSM and B-LSSM
Creators: name: Dong, Xing-Xing
name: Feng, Tai-Fu
name: Zhao, Shu-Min
name: Zhang, Hai-Bin
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In order to interpret the Higgs mass and its decays more naturally, we hope to intrude the BLMSSM and B-LSSM. In the both models, the right-handed neutrino superfields are introduced to better explain the neutrino mass problems. In addition, there are other superfields considered to make these models more natural than MSSM. In this paper, the method of $χ^2$ analyses will be adopted in the BLMSSM and B-LSSM to calculate the Higgs mass, Higgs decays and muon $g-2$. With the fine-tuning in the region $0.67\%-2.5\%$ and $0.67\%-5\%$, we can obtain the reasonable theoretical values that are in accordance with the experimental results respectively in the BLMSSM and B-LSSM. Meanwhile, the best-fitted benchmark points in the BLMSSM and B-LSSM will be acquired at minimal $(χ^{BL}_{min})^2 = 2.34736$ and $(χ^{B-L}_{min})^2 = 2.47754$, respectively.
Interactions in the 8-orbital model for twisted bilayer graphene
Creators: name: Calderón, M. J.
name: Bascones, E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We calculate the interactions between the Wannier functions of the 8-orbital model for twisted bilayer graphene (TBG). In this model, two orbitals per valley centered at the AA regions, the AA-p orbitals, account for the most part of the spectral weight of the flats bands. Exchange and assisted-hopping terms between these orbitals are found to be small. Therefore, the low energy properties of TBG will be determined by the density-density interactions. These interactions decay with the distance much faster than in the two orbital model, following a 1/r law in the absence of gates. The magnitude of the largest interaction in the model, the onsite term between the flat band orbitals, is controlled by the size of the AA regions and is estimated to be ~ 40 meV. To screen this interaction, the metallic gates have to be placed at a distance smaller than 5 nm. For larger distances only the long-range part of the interaction is substantially screened. The model reproduces the band deformation induced by doping found in other approaches within the Hartree approximation. Such deformation reveals the presence of other orbitals in the flat bands and is sensitive to the inclusion of the interactions involving them.
description: 9 pages, including 6 multiple figures and one appendix
Additional file 4 of Cloning and promoter analysis of palladin 90-kDa, 140-kDa, and 200-kDa isoforms involved in skeletal muscle cell maturation
Creators: name: Boimpoundi Eunice Flavie Ouali
name: Tzu-Yu Liu
name: Chun-Yen Lu
name: Cheng, Pei-Yuan
name: Chao-Li Huang
name: Chun-Chun Li
name: Yu-Chung Chiang
name: Wang, Hao-Ven
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Figure S2. Expression of palladin isoforms and myogenic genes.
Hall-effect evolution across a heavy-fermion quantum critical point
Creators: name: Paschen, S.
name: Luhmann, T.
name: Wirth, S.
name: Gegenwart, P.
name: Trovarelli, O.
name: Geibel, C.
name: Steglich, F.
name: Coleman, P.
name: Si, Qimiao
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A quantum critical point (QCP) develops in a material at absolute zero when a new form of order smoothly emerges in its ground state. QCPs are of great current interest because of their singular ability to influence the finite temperature properties of materials. Recently, heavy-fermion metals have played a key role in the study of antiferromagnetic QCPs. To accommodate the heavy electrons, the Fermi surface of the heavy-fermion paramagnet is larger than that of an antiferromagnet. An important unsolved question concerns whether the Fermi surface transformation at the QCP develops gradually, as expected if the magnetism is of spin density wave (SDW) type, or suddenly as expected if the heavy electrons are abruptly localized by magnetism. Here we report measurements of the low-temperature Hall coefficient ($R_H$) - a measure of the Fermi surface volume - in the heavy-fermion metal YbRh2Si2 upon field-tuning it from an antiferromagnetic to a paramagnetic state. $R_H$ undergoes an increasingly rapid change near the QCP as the temperature is lowered, extrapolating to a sudden jump in the zero temperature limit. We interpret these results in terms of a collapse of the large Fermi surface and of the heavy-fermion state itself precisely at the QCP.
description: 20 pages, 3 figures; to appear in Nature
Sphodrocepheus anthelionus Woolley and Higgins 1968
Creators: name: Behan-Pelletier, Valerie M.
name: Lindo, Zoë
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Cepheidae
Sphodrocepheus
Sphodrocepheus anthelionus

description: Sphodrocepheus anthelionus Woolley and Higgins, 1968
 Geographic Location: BC: (Woolley & Higgins 1968b); Isaiah Creek study site (Lindo & Stevenson 2007).
 Distribution: Nearctic.
 Genus Tritegeus Berlese, 1913
description: Published as part of Behan-Pelletier, Valerie M. & Lindo, Zoë, 2019, Checklist of oribatid mites (Acari: Oribatida) of Canada and Alaska, pp. 1-180 in Zootaxa 4666 (1) on page 64, DOI: 10.11646/zootaxa.4666.1.1, http://zenodo.org/record/4000595
The impact of food aid on maize prices and production in Swaziland
Creators: name: Mabuza, Majola Lawrence
name: Hendriks, Sheryl L.
name: Ortmann, Gerald F.
name: Sithole, M.M.
name: Mabuza, Majola Lawrence
name: Hendriks, Sheryl L.
name: Ortmann, Gerald F.
name: Sithole, M.M.
Publisher: name: Unknown
Year: 2009
Subjects: Financial Economics

description: The objective of the study was to provide empirical evidence on whether food aid leads to depressed domestic maize prices and reduced maize production in subsequent years in Swaziland. The lack of empirical evidence has often resulted in premature negative conclusions about the impact of food aid on Swaziland’s maize industry. The study used secondary national data from 1985 to 2006. Variables used in the statistical analysis included quantity of cereal food aid; quantity of commercial maize imports; quantity of locally produced maize; official maize producer price; open market maize producer price; fertilizer price; fuel price; rainfall; and total area planted to maize. The impact of food aid was measured using the reduced form market equilibrium model consisting of maize quantity and maize producer price functions, estimated simultaneously through the two-stage least squares (2SLS) method. Analytical results revealed that food aid received by Swaziland does not lower prices of domestic maize and has no significant negative effect on the quantity of maize produced in subsequent seasons.
Additional file 1 of Fish predation on corals promotes the dispersal of coral symbionts
Creators: name: Grupstra, Carsten G. B.
name: Rabbitt, Kristen M.
name: Howe-Kerr, Lauren I.
name: Correa, Adrienne M. S.
Publisher: name: figshare
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Summary of the samples collected and processed in this study for Symbiodiniaceae cell density and viability (Fig. 2), culturing, and community composition based on the internal transcribed spacer-2 (ITS-2) region of rDNA (Fig. 3). Figure S1. Hemocytometry with trypan blue stain accurately differentiates live and dead Symbiodiniaceae cells that were fixed in 10% formalin. Table S2. Results of pairwise Dunn tests on Symbiodiniaceae cell densities between species, sediment and water samples (Fig. 2). Table S3. Mean relative abundances of genes associated with five Symbiodiniaceae genera identified in this study per sample type (e.g., Amanses scopas feces) and overall sample category (e.g., obligate corallivores) (Fig. 3). Table S4. Results from pairwise PERMANOVA tests on Symbiodiniaceae community composition at the genus level, based on Bray-Curtis distances (Fig. 3). Figure S2. The communities of Symbiodiniaceae in obligate corallivore (coral-eating animal) feces are most similar to the communities of Symbiodiniaceae in two locally abundant coral species. Table S5. Overview of values used in bootstrap estimate of reef-scale Symbiodiniaceae dispersal (Fig. 4).
Around Efimov's differential test for homeomorphism
Creators: name: Alexandrov, Victor
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: Algebraic Geometry (math.AG)
subject: Classical Analysis and ODEs (math.CA)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 53C42, 53C40, 53A05, 26B10, 14R15, 34D23, 37C75, 58C15

description: In 1968, N.\,V.~Efimov proved the following remarkable theorem: \textit{Let $f:\mathbb{R}^2\to\mathbb{R}^2\in C^1$ be such that $\det f'(x)<0$ for all $x\in\mathbb{R}^2$ and let there exist a function $a(x)>0$ and constants $C_1\geqslant 0$, $C_2\geqslant 0$ such that the inequalities $|1/a(x)-1/a(y)|\leqslant C_1 |x-y|+C_2$ and $|\det f'(x)|\geqslant a(x)|\operatorname{curl}f(x)|+a^2(x)$ hold true for all $x, y\in\mathbb{R}^2$. Then $f(\mathbb{R}^2)$ is a convex domain and $f$ maps $\mathbb{R}^2$ onto $f(\mathbb{R}^2)$ homeomorphically.} Here $\operatorname{curl}f(x)$ stands for the curl of $f$ at $x\in\mathbb{R}^2$. This article is an overview of analogues of this theorem, its generalizations and applications in the theory of surfaces, theory of global inverse functions, as well as in the study of the Jacobian Conjecture and the global asymptotic stability of dynamical systems.
description: 15 pages; several new references are added to version 3
From zero resistance states to absolute negative conductivity in microwave irradiated 2D electron systems
Creators: name: Inarrea, J.
name: Platero, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recent experimental results regarding a 2D electron gas subjected to microwave radiation reveal that magnetoresistivity, apart from presenting oscillations and zero resistance states, can evolve to negative values at minima. In other words, the current can evolve from flowing with no dissipation, to flow in the opposite direction of the dc bias applied. Here we present a theoretical model in which the existence of radiation-induced absolute negative conductivity is analyzed. Our model explains the transition from zero resistance states to absolute negative conductivity in terms of multiphoton assisted electron scattering due to charged impurities. It shows as well, how this transition can be driven by tuning microwave frequency and intensity. Then it opens the possibility of controlling the electron Larmor orbits dynamics (magnetoconductivity) in microwave driven nanodevices. The analysis of zero resistance states is therefore promising because new optical and transport properties in nanodevices will be expected.
description: 5 pages and 4 figures
Tritegeus Berlese 1913
Creators: name: Behan-Pelletier, Valerie M.
name: Lindo, Zoë
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Cepheidae
Tritegeus

description: Tritegeus sp.
 Geographic Location and Habitats: BC: Mt. Cain, Amabilis fir (Fagan et al. 2005).
 Superfamily Polypterozetoidea
 Family Nodocepheidae
 Genus Nemacepheus Aoki, 1968
description: Published as part of Behan-Pelletier, Valerie M. & Lindo, Zoë, 2019, Checklist of oribatid mites (Acari: Oribatida) of Canada and Alaska, pp. 1-180 in Zootaxa 4666 (1) on page 64, DOI: 10.11646/zootaxa.4666.1.1, http://zenodo.org/record/4000595
Additional file 3 of Cloning and promoter analysis of palladin 90-kDa, 140-kDa, and 200-kDa isoforms involved in skeletal muscle cell maturation
Creators: name: Boimpoundi Eunice Flavie Ouali
name: Tzu-Yu Liu
name: Chun-Yen Lu
name: Cheng, Pei-Yuan
name: Chao-Li Huang
name: Chun-Chun Li
name: Yu-Chung Chiang
name: Wang, Hao-Ven
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Figure S1. Transcription factors general expression.
Quasi-nondegenerate pump-probe magnetooptical experiment in GaAs/AlGaAs heterostructure based on spectral filtration
Creators: name: Surynek, M.
name: Nadvornik, L.
name: Schmoranzerova, E.
name: Nemec, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on a quasi-nondegenerate pump-probe technique that is based on spectral-filtration of femtosecond laser pulses by a pair of mutually-spectrally-disjunctive interference filters. This cost- and space-efficient approach can be used even in pump-probe microscopy where collinear propagation of pump and probe pulses is dictated by utilization of a microscopic objective. This technique solves the contradictory requirements on an efficient removal of pump photons from the probe beam, to achieve a good signal-to-noise ratio, simultaneously with a needed spectral proximity of the excitation and probing, which is essential for magnetooptical study of many material systems. Importantly, this spectral-filtration of 100 fs long laser pulses does not affect considerably the resulting time-resolution, which remains well below 500 fs. We demonstrate the practical applicability of this technique with close but distinct wavelengths of pump and probe pulses in spatially- and time-resolved spin-sensitive magnetooptical Kerr effect (MOKE) experiment in GaAs/AlGaAs heterostructure, where a high-mobility spin system is formed after optical injection of electrons at wavelengths close to MOKE resonance. In particular, we studied the time- and spatial-evolutions of charge-related (reflectivity) and spin-related (MOKE) signals. We revealed that they evolve in a similar but not exactly the same way which we attributed to interplay of several electron many-body effects in GaAs.
description: 20 pages, 5 figures
Improved methodology for the synthesis of bicycle octapeptides
Creators: name: Fournier, Pierre
Publisher: name: University of British Columbia
Year: 2009

description: Rigidity is an important property of drugs and small molecule toxins that enhances the affinity for their targets. Amatoxins are highly rigid bicyclic peptides that bind to and consequently inhibit RNA Polymerase II. In this thesis we present an improved methodology for the synthesis of a tryptathionine linkage, which constitutes the rigidifying bridge that is a distinguishing feature of amatoxins and related phallotoxins. The Savige-Fontana reaction was used to form 3ahydroxyhexahydropyrroloindoles (Hpi), critical intermediates for substitution at the 2- position of the tryptophan indole. Our strategy consisted of forming Hpi as a dipeptide by oxidizing with dimethyldioxirane various Tr-Trp-X-OMe compounds (with X=Ser, Val, Lys(Boc), Leu). Good yields were obtained (75 - 92%), except for leucine due to concurrent side-chain oxidation. Our strategy was applied to the inter- or intramolecular formation of a linkage between cysteine and tryptophan, which gave rise to compounds 2, 3 and 4 and finally to the synthesis of the amatoxin Pro2,lle3-deoxo-amaninamide 1. After formation of the linear octapeptide Tr-Hpi-Gly-lle-Gly-Cys(Tr)-Asn(Tr)-Pro-lle-OtBu using the "rapid continuous peptide synthesis" method, TFA treatment gave rise to the corresponding unprotected monocyclic peptide 64 bearing a tryptathionine bridge. A macrolactamization with PyBOP as coupling reagent gave rise to a mixture of the target 1 and its inactive atropisomer. Compound 1 was isolated and characterized.
An Economic Analysis of the Impact of Food Prices and Other Factors on Adult Lifestyles: Choices of Physical Activity and Healthy Weight
Creators: name: Chen, Yanni
name: Huffman, Wallace E.
name: Chen, Yanni
name: Huffman, Wallace E.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Consumer/Household Economics
subject: Health Economics and Policy
subject: Labor and Human Capital
subject: Physical Activity
subject: Obesity
subject: Food Prices
subject: Adult
subject: United States

description: This paper examines women’s and men’s decisions to participate in physical activity and to attain a healthy weight. These outcomes are hypothesized to be related to prices of food, drink and health care services and products, the respondent’s personal characteristics (such as education, reading food labels, adjusted family income, opportunity cost of time, occupation, marital status, race and ethnicity) and his or her BMI at age 25. These decisions are represented by a trivariate probit model that is fitted to data for adults in the NLSY79 panel with geocodes that have been augmented with local area food, drink and health care prices. Separate analyses are undertaken for men and women due to basic physiological differences. Results include: Women and men who read food labels are more likely to participate in moderate and vigorous physical exercise, and women are less likely to be obese. Women with more education are more likely to be obese but educated men are less likely to be obesity. Higher prices for fresh fruits and vegetables and non-alcoholic drinks increase likelihood of obesity for females but not for males; and a higher price for processed fruits and vegetables reduce likelihood of obesity for females but not for males. A larger BMI at age 25 has wage effects later in life and also increases the probability of being obese.
Search for the Lepton-Flavor-Violating Leptonic B Decays B^0 -> μ^\pm τ^\mp and B^0 -> μ^\pm τ^\mp
Creators: name: Bornheim, A.
name: Collaboration, CLEO
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We have searched a sample of 9.6 million BBbar events for the lepton-flavor-violating leptonic B decays, B^0 -> μ^\pm τ^\mp and B^0 -> e^\pm τ^\mp. The τ-lepton was detected through the decay modes τ-> \ellν\barν, where \ell = e, μ. There is no indication of a signal, and we obtain the 90% confidence level upper limits [Br(B^0 -> μ^\pm τ^\mp)] < 3.8 X 10^-5 and [Br(B^0 -> e^\pm τ^\mp)] < 1.1 X 10^-4.
description: 7 pages postscript,also available through http://www.lns.cornell.edu/public/CLNS/2004/, Submitted to PRL
Additional file 1 of Cloning and promoter analysis of palladin 90-kDa, 140-kDa, and 200-kDa isoforms involved in skeletal muscle cell maturation
Creators: name: Boimpoundi Eunice Flavie Ouali
name: Tzu-Yu Liu
name: Chun-Yen Lu
name: Cheng, Pei-Yuan
name: Chao-Li Huang
name: Chun-Chun Li
name: Yu-Chung Chiang
name: Wang, Hao-Ven
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Oligonucleotides used for qPCR.
Significant nonclassical paths with atoms and cavities in the double-slit experiment
Creators: name: de Almeida, J. O.
name: Lewenstein, M.
name: Quach, J. Q.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the the double-slit experiment, nonclassical paths are Feynman paths that go through both slits. Prior work with atom cavities as which-way detectors in the double-slit experiment has shown these paths to be experimentally inaccessible. In this paper, we show how such a setup can indeed detect nonclassical paths with 1% probability if one considers a different type of nonclassical path than previously investigated. We also show how this setup can be used to erase and restore the coherence of the nonclassical paths. Finally, we also show how atom cavities may be used to implement a exact measure of Born-rule violation [Quach, Which-way double-slit experiments and Born-rule violation, Phys. Rev. A 95, 042129 (2017)], which up until now has only been a formal construct.
Can black hole MACHO binaries be detected by the Brazilian spherical antenna?
Creators: name: de Araujo, J. C. N.
name: Miranda, O. D.
name: Castro, C. S.
name: Paleo, B. W.
name: Aguiar, O. D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Different studies show that dark matter of non-baryonic origin might exist. There have been experimental evidences that at least one form of dark matter has been detected through microlensing effects. This form of dark matter is named MACHOs (Massive Astrophysical Compact Halo Objects). The MACHO collaboration estimated that the masses of these objects are to be in the range 0.15-0.95 solar masses, where the most probable mass is of 0.5 solar masses. Some authors argue that MACHOs could be black holes, and that they could form binary systems, BHMACHO binaries. As is well known binary systems are sources of gravitational waves. The Brazilian spherical antenna will operate in the frequency band of 3.0-3.4 kHz, sensitive to binaries of a pair of 0.5 solar mass black holes just before coalescing. In the present work we study the detectability of these putative BHMACHO binaries by the Brazilian spherical antenna Mario Schenberg.
description: 7 pages, 2 figures
Eine neue Handschrift zur Apostolischen Kirchenordnung
Creators: name: Schermann, Theodor
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 2 Nr. 2 (1902): Oriens christianus, Band 2, Heft 2
Quark-gluon vertex with an off-shell O(a)-improved chiral fermion action
Creators: name: Lin, Huey-Wen
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We perform a study the quark-gluon vertex function with a quenched Wilson gauge action and a variety of fermion actions. These include the domain wall fermion action (with exponentially accurate chiral symmetry) and the Wilson clover action both with the non-perturbatively improved clover coefficient as well as with a number of different values for this coefficient. We find that the domain wall vertex function behaves very well in the large momentum transfer region. The off-shell vertex function for the on-shell improved clover class of actions does not behave as well as the domain wall case and, surprisingly, shows only a weak dependence on the clover coefficient $c_{SW}$ for all components of its Dirac decomposition and across all momenta. Including off-shell improvement rotations for the clover fields can make this action yield results consistent with those from the domain wall approach, as well as helping to determine the off-shell improved coefficient $c_q^\prime$.
description: 11 pages, 13 figures, REVTeX 4
Additional file 2 of Agreement between original and Rasch-approved neck disability index
Creators: name: Lu, Ze
name: MacDermid, Joy C.
name: Goris Nazari
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 2. NDI Score Transformation Algorithm
Bound-state beta-decay of a neutron in a strong magnetic field
Creators: name: Kouzakov, Konstantin A.
name: Studenikin, Alexander I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The beta-decay of a neutron into a bound $(pe^-)$ state and an antineutrino in the presence of a strong uniform magnetic field ($B \gtrsim 10^{13}$ G) is considered. The beta-decay process is treated within the framework of the standard model of weak interactions. A Bethe-Salpeter formalism is employed for description of the bound $(pe^-)$ system in a strong magnetic field. For the field strengths $10^{13}$ G$ \lesssim B \lesssim10^{18}$ G the estimate for the ratio of the bound-state decay rate $w_b$ and the usual (continuum-state) decay rate $w_c$ is derived. It is found that in such strong magnetic fields $w_b/w_c \sim 0.1-0.4$. This is in contrast to the field-free case, where $w_b/w_c \simeq 4.2 \times 10^{-6}$ [J. N. Bahcall, Phys. Rev. {\bf 124}, 495 (1961); L. L. Nemenov, Sov. J. Nucl. Phys. {\bf 15}, 582 (1972); X. Song, J. Phys. G: Nucl. Phys. {\bf 13}, 1023 (1987)]. The dependence of the ratio $w_b/w_c$ on the magnetic field strength $B$ exhibits a logarithmic-like behavior. The obtained results can be important for applications in astrophysics and cosmology.
description: 22 pages (revtex4), 1 figure; v2: more detailed discussion on astrophysical applications in conclusion section, accepted for publication in Phys. Rev. C
General Analysis of Single Top Production and W Helicity in Top Decay
Creators: name: Chen, Chuan-Ren
name: Larios, F.
name: Yuan, C. -P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We provide a framework for the analysis of the W boson helicity in the decay of the top quark that is based on a general effective tbW coupling. Four independent coupling coefficients can be uniquely determined by the fractions of longitudinal and transverse W boson polarizations as well as the single top production rates for the t-channel and the s-channel processes. The knowledge of these coefficients can be used to discriminate models of electroweak symmetry breaking.
description: Typo on Eqs. 5 and 6 corrected
Flourescence spectroscopy of trapped molecular ions
Creators: name: Wright, Kenneth Charles
Publisher: name: University of British Columbia
Year: 2009

description: This thesis describes the development of a unique instrument capable of detecting fluorescence emission from large gas phase molecular ions trapped in a three-dimensional quadrupole ion trap. The hypothesis that has formed the basis of this work is the belief that fluorescence spectroscopy can be combined with ion trap mass spectrometry to probe the structure of gas phase molecular ions. The ion trap provides a rarefied environment where fluorescence experiments can be conducted without interference from solvent molecules or impurities. Although fluorescence was not detected during preliminary experiments, two significant experimental challenges associated with detecting the gas phase fluorescence of ions were discovered. First, gas phase ions were vulnerable to photodissociation and low laser powers were necessary to avoid photodissociation. Since fluorescence emission is directly proportional to laser intensity, a lower laser power limits the fluorescence signal. Second, the fluorescence emission was not significantly Stokes shifted from the excitation. The lack of Stokes shift meant the small fluorescence signal must be detected in the presence of a large amount of background scatter generated by the excitation. Initially, this background was seven orders of magnitude higher than the analytical signal ultimately detected. A specially designed fiber optic probe was inserted between the electrodes of the ion trap to stop light scattered off the outside surfaces of the trap from reaching the detector. The inside surfaces of the ion trap were coated black to further reduce the amount of scattered light collected. These innovations helped reduced the background by six orders of magnitude and fluorescence emission from rhodamine-6G was detected. Pulse counting experiments were used to optimize fluorescence detection. The effects of trapping level, laser power, and irradiation time were investigated and optimized. The instrument developed in this work not only allows for the detection of fluorescent photons, but the sensitivity is high enough for the light to be dispersed and an emission spectrum recorded. The emission spectra of rhodamine-6G and 5-carboxyrhodamine-6G ions reported in this thesis represent the first spectra recorded from large molecular ions confined in a quadrupole ion trap. Finally, anti-Stokes fluorescence from rhodamine- 6G was also detected.
Paving the Way for Development: The Impact of Road Infrastructure on Agricultural Production and Household Wealth in the Democratic Republic of Congo
Creators: name: Ulimwengu, John M.
name: Funes, Jose
name: Headey, Derek D.
name: You, Liang
name: Ulimwengu, John M.
name: Funes, Jose
name: Headey, Derek D.
name: You, Liang
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Food Security and Poverty
subject: Production Economics
subject: Infrastructure
subject: market access
subject: road and river transport
subject: agricultural production
subject: poverty.

description: Given its vast land resources and favorable water supply, the Democratic Republic of Congo's (DRC) natural agricultural potential is immense. However, the economic potential of the sector is handicapped by one of the most dilapidated transport systems in the developing world (World Bank, 2006). Road investments are therefore a high priority in the government's investment plans, and those of its major donors. Whilst these are encouraging signs, very little is known about how the existing road network constrains agricultural and rural development, and how these new road investments would address these constraints. To inform this issue the present paper primarily employs GIS-based data to assess the impact of market access on agricultural and rural development (ARD). Compared to existing work, however, the paper makes a number of innovations to improve and extend the generic techniques used to estimate the importance of market access for ARD. First, the DRC road network data is augmented with survey-based data from Minten and Kyle (1999) on agricultural transport times to calculate improved “market access” measures for the DRC. Second, we follow Dorosh et al (2009) in estimating the long run relationship between market access and agricultural production, although we also investigate the relationship with household wealth. Finally, we run simulations of how proposed infrastructure investments would affect market access, and how market access would in turn affect agricultural production and household wealth.