cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Causus maculatus
Creators: name: Segniagbeto, Gabriel Hoinsoude
name: Trape, Jean François
name: David, Patrick
name: Ohler, Annemarie
name: Dubois, Alain
name: Glitho, Isabelle Adolé
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Viperidae
Causus
Causus maculatus

description: Causus maculatus (Hallowell, 1842)
MATERIAL EXAMINED. — 59 specimens (MNHN 1989.0253, MNHN 1989.0266, MNHN 1982.0456 - 60, MRAC 29692, “ Togo ”, no precise locality; ZMB 64192, MRAC 29676, MRAC 28694, Missahohe; GHS-W 0006, GHS-W 0013-14, GHS-W 1212-15, GHS-W 1218, GHS-W 1222, GHS-W 1226-1227, T 224, Agave; GHS-W Togo 62, GHS-W Togo 67, Agbanon; GHS-W 0214-15, MRAC 29735, Atakpame; GHS-W 1282, Diguingue; GHS-W 1211, GHS-Togo 15, GHS-W Togo 26, GHS-W Togo 54, Sodo Zion; GHS-W 0064, GHS-W 0067, GHS-W 0070, GHS-W 1232, GHS-W 1247, GHS-W 1252, GHS-W 1262, GHS-Togo 12, GHS-Togo 20, Yo [Agome Yo]; MRAC 29661, Borgou; MRAC 29647, T 171, Aledjo; MRAC 29643, MRAC 29515, MRAC 29534, MRAC 29544, Namoudjoga; MRAC 29621, Togoville; MRAC 29584, Kolokope; MRAC 29506, Niamtougou; MRAC 29490, Binaparba; MRAC 29468, Nanergou; MRAC 29461, Badou; MRAC 28291, Kpalime; MRAC 73014.0033, MRAC 73014.0053, Agou; T 129, Fazao).
MORPHOLOGY. — TL from 135 to 676 mm; 18-20 (usally 19) MSR, smooth and oblique; 129-144 Ven, smooth; 17-26 Sc, paired; anal single; 6-7 supralabials; 8-11 infralabials; 2 (rarely 1) preoculars; 2 postoculars; 2 suboculars; temporal scale formula 2 + 2 + 3.
 DISTRIBUTION. — This species is widespread throughout the country, where it inhabits both savannahs and forested areas. Causus maculatus had previously been mentioned from Togo by Hughes (1978), Roman (1984), de Massary (1993), Spawls & Branch (1995), David & Ineich (1999) and Leaché et al. (2006). However, specimens of Causus rhombeatus (Lichtenstein, 1823) were cited from Togo by Werner (1898), Sternfeld (1908b, 1909: 24), Hulselmans & Verheyen (1970) and Hulselmans et al. (1970). According to the ranges of these species (see Hughes 1978), they should be referred to as Causus maculatus.
description: Published as part of Segniagbeto, Gabriel Hoinsoude, Trape, Jean François, David, Patrick, Ohler, Annemarie, Dubois, Alain & Glitho, Isabelle Adolé, 2011, The snake fauna of Togo: systematics, distribution and biogeography, with remarks on selected taxonomic problems, pp. 325-360 in Zoosystema 33 (3) on page 352, DOI: 10.5252/z2011n3a4, http://zenodo.org/record/4547017
Land Use, Land Cover, and Pollinator Health: A Review and Trend Analysis
Creators: name: Hellerstein, Daniel
name: Hitaj, Claudia
name: Smith, David
name: Davis, Amélie
name: Hellerstein, Daniel
name: Hitaj, Claudia
name: Smith, David
name: Davis, Amélie
Publisher: name: Unknown
Year: 2017
Subjects: subject: Environmental Economics and Policy
subject: Pollinators
subject: honey bees
subject: land use
subject: land cover
subject: forage
subject: economics

description: About 35 percent of the world’s food crops depend on pollinators, including managed honey bees, to reproduce. However, pollinators face a number of stressors, such as parasites, poor nutrition, pesticides, and diseases. A literature review indicates that pollinators may benefit from landscapes richer in high-quality forage (pollen and nectar sources) and highlights the different needs of managed honey bees and native (unmanaged)pollinators. This study uses 30 years of data on U.S. land uses to calculate a pollinator forage suitability index. When averaged across the Nation, the forage suitability index increased from 1982 to 2002 and declined slightly from 2002 to 2012—though in important honey bee regions (such as Central North and South Dakota), the decline from 2002 to 2012 is more pronounced. The study also analyzes the economics of providing better pollinator forage, such as assigning property rights for colony placement and voluntary government conservation programs to increase pollinator forage.
Optimal Critical Values of a Preliminary Test for Linear Restrictions in a Regression Model with Multivariate Student-t Disturbances
Creators: name: Wong, Jason K.
name: Giles, Judith A.
name: Wong, Jason K.
name: Giles, Judith A.
Publisher: name: Unknown
Year: 1991
Subjects: subject: Agribusiness
subject: Financial Economics
subject: Spherical Symmetry
subject: Conditional Inference
subject: F-Test
subject: Mini-max Rule

description: Applied researchers typically pre-test to decide the final estimator of the coefficients in a regression model. Brook (1976) shows that the optimal critical value for the preliminary test is approximately two in value, regardless of the degrees of freedom, according to a mini-max (risk) regret criterion, when the prior test is of the validity of restrictions on the model's coefficients. Brook's result depends on the often unrealistic assumption of normally distributed disturbances. We consider the wider family of multivariate Student-t disturbances.
Critical Binder cumulant in two-dimensional anisotropic Ising models
Creators: name: Selke, W.
name: Shchur, L. N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Binder cumulant at the phase transition of Ising models on square lattices with various ferromagnetic nearest and next-nearest neighbour couplings is determined using mainly Monte Carlo techniques. We discuss the possibility to relate the value of the critical cumulant in the isotropic, nearest neighbour and in the anisotropic cases to each other by means of a scale transformation in rectangular geometry, to pinpoint universal and nonuniversal features.
description: 7 pages, 4 figures, submitted to J. Phys. A
Pre-Test Estimation in a Regression Model with a Misspecified Covariance Matrix
Creators: name: Albertson, K. V
name: Albertson, K. V
Publisher: name: Unknown
Year: 1991
Subjects: Agribusiness
Financial Economics

description: We consider the effects of incorrectly assuming a scalar error covariance matrix in a linear regression model in the context of a pre-test for linear restrictions on the coefficients. Because of this misspecification the (true) size and power of the pre-test may differ from their assumed values, distorting the pre-test estimator risk function towards that of one or other of its component estimators. The restricted and pre-test estimators may dominate the unrestricted estimator over a larger, or smaller, part of the parameter space, compared to the case with a correctly specified model.
Continuum-mechanical, Anisotropic Flow model for polar ice masses, based on an anisotropic Flow Enhancement factor
Creators: name: Placidi, Luca
name: Greve, Ralf
name: Seddik, Hakime
name: Faria, Sérgio
Publisher: name: Springer-Verlag
Year: 2009

description: A complete theoretical presentation of the Continuum-mechanical, Anisotropic Flow model, based on an anisotropic Flow Enhancement factor (CAFFE model) is given. The CAFFE model is an application of the theory of mixtures with continuous diversity for the case of large polar ice masses in which induced anisotropy occurs. The anisotropic response of the polycrystalline ice is described by a generalization of Glen’s flow law, based on a scalar anisotropic enhancement factor. The enhancement factor depends on the orientation mass density, which is closely related to the orientation distribution function and describes the distribution of grain orientations (fabric). Fabric evolution is governed by the orientation mass balance, which depends on four distinct effects, interpreted as local rigid body rotation, grain rotation, rotation recrystallization (polygonization) and grain boundary migration (migration recrystallization), respectively. It is proven that the flow law of the CAFFE model is truly anisotropic despite the collinearity between the stress deviator and stretching tensors.
NiO nanoparticles for enhanced removal of methyl orange: equilibrium, kinetics, thermodynamic and desorption studies
Creators: name: Riaz, Qamar
name: Ahmed, Madiha
name: Zafar, Muhammad Nadeem
name: Zubair, Muhammad
name: Nazar, Muhammad Faizan
name: Sumrra, Sajjad Hussain
name: Ahmad, Iqbal
name: Hosseini-Bandegharaeic, Ahmad
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
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: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: In this work, a green hydrothermal method was utilised to synthesise NiO nanoparticles (NiO-NPs) as an effective and low cost adsorbent for dye adsorption from aqueous medium. The product was characterised using powder XRD, FTIR and SEM techniques and the adsorption behaviour of NiO-NPs was assessed using methyl orange (MO) dye. The maximum removal (97.56 mg/g) of MO onto NiO-NPs was observed at pH 4, adsorbent amount 0.03 g and temperature 40°C. Thence, on evaluating and optimising the factors affecting the adsorption, the results exhibited that 95% dye removal was reached in first 30 min, additionally the adsorption equilibrium, kinetics and thermodynamics models were investigated. The results showed that the adsorption followed Langmuir model and pseudo second order model. The thermodynamic assessment of adsorption of MO onto NiO-NPs indicated the feasibility, endothermic and spontaneous nature with enthalpy and entropy of the system being positive (∆H° = 8.661 KJ/mol, ∆S° = 7.310 J/mol K). Also, the order of magnitude of ∆G° and ∆H° revealed the reversibility of reaction that reflects the adsorbent could be regenerated and potential contender for dyes removal form textile wastes.
Getting High: High Fidelity Simulation of High Granularity Calorimeters with High Speed
Creators: name: Buhmann, Erik
name: Diefenbacher, Sascha
name: Eren, Engin
name: Gaede, Frank
name: Kasieczka, Gregor
name: Korol, Anatolii
name: Krüger, Katja
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Accurate simulation of physical processes is crucial for the success of modern particle physics. However, simulating the development and interaction of particle showers with calorimeter detectors is a time consuming process and drives the computing needs of large experiments at the LHC and future colliders. Recently, generative machine learning models based on deep neural networks have shown promise in speeding up this task by several orders of magnitude. We investigate the use of a new architecture -- the Bounded Information Bottleneck Autoencoder -- for modelling electromagnetic showers in the central region of the Silicon-Tungsten calorimeter of the proposed International Large Detector. Combined with a novel second post-processing network, this approach achieves an accurate simulation of differential distributions including for the first time the shape of the minimum-ionizing-particle peak compared to a full GEANT4 simulation for a high-granularity calorimeter with 27k simulated channels. The results are validated by comparing to established architectures. Our results further strengthen the case of using generative networks for fast simulation and demonstrate that physically relevant differential distributions can be described with high accuracy.
description: 17 pages, 12 figures
Zur Paläogeographie der nördlichen Iller-Lech-Platte und zur Genese ihrer Schotter im Altpleistozän
Creators: name: Löscher, Manfred
name: Münzing, Klaus
name: Tillmanns, Wolfgang
Publisher: name: Geozon Science Media
Year: 1978

description: Der schotterpetrographische Nachweis eines altpleistozänen Donaulaufes in der nordwestlichen Iller-Lech-Platte erfordert bis in das frühe Altpleistozän hinein für die Hier einen nach NE gerichteten Abfluß. Die heutige Abflußrichtung ist erstmals mit der Entstehung der Zwischenterrassenschotter nachweisbar. Schwermineralogisch ist der altpleistozäne Donaulauf nach Einmündung in das Molassebecken nur noch auf kurze Strecke zu verfolgen. In seinen übrigen Laufabschnitten finden sich ausschließlich von der Molasse (OSM) geprägte Schwermineralspektren. Die bei Burgau und Wörleschwang im Sediment der altpleistozänen Donau gefundenen Mollusken sind warmzeitlich. Dieser Befund wird zumindest auf Teilbereiche des betreffenden Schotterkörpers übertragen.
description: research
title: Technological innovation and local authorities: a case-study of the Greater London Council (GLC)
Creators: name: Mole, Veronica Claire
Publisher: name: The Open University
Year: 1989

description: The research presented in the thesis is a'case-study of a 'socially-directed' technology policy, formulated and implemented by the Greater London Council (GLC) whilst in office, between 1981 and 1986. The GLC attempted to make a direct link between technological innovation and social needs by creating the facilities, in the form of five 'Technology Networks'. for user involvement in socially-useful product design and development. The research is important for an exploration of technology issues. First, it represents an attempt to influence the politics of technological development. Second. it addresses issues of the content of technology and the social organisation of the innovation process. The Technology Networks comprised the focal points of the research. The objectives were the identification of the factors, both locally and nationally, which affected the policy implementation process. For the GLC, the national economic and political context proved crucial to policy developments: it resulted in their abolition in 1986. The Technology Networks remained in operation, but were increasingly plagued by funding difficulties. Findings from the study suggest that the access of a different range of social groups of users and producers to the early stages of the innovation process. may be a valuable exercise in itself. but is problematic as a base for an alternative technology policy. Other major constraints on the development of socially-useful technologies are manufacturing and market opportunities. The conclusions are concerned to explore the potential of a local authority as an agent of technological change, in terms of their role in design and technology education and the creation of an alternative technological hegemony.
Estimation of the Scale Parameter after a Pre-Test for Homogeneity in a Mis-Specified Regression Model
Creators: name: Giles, Judith A.
name: Giles, Judith A.
Publisher: name: Unknown
Year: 1991
Subjects: Agribusiness
Financial Economics

description: The risk properties of estimators of the scale parameter after a pre-test for homogeneity of the error variances in the two sample linear regression model has received quite an amount of attention in the literature. This literature typically assumes normal disturbances and a properly specified model. In this paper we consider that both equations may be mis-specified by the omission of relevant regressors and that the error distributions may belong to a wider class than the normal distribution. We derive and analyse the exact risk (under quadratic loss) of the pre-test estimator of the scale parameter for the first sub-sample.
Potential Errors in a Scheme of Universal Quantum Gates in Kane's Model
Creators: name: Ota, Yukihiro
name: Mikami, Shuji
name: Ohba, Ichiro
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We re--investigate a plausible proposal for universal quantum gates in Kane's model, in which the authors assumed that electron spin is always downward under a background magnetic field and the value of controlling parameters is varied instantaneously. We demonstrate that a considerable error appears, for example, in the X rotation. As result, the controlled operations don't work. Such a failure is caused by improper choice of the computational bases; actually, the electron spin is not always downward over time during quantum operations.
description: 11 pages, 3 figures; improved with typos corrected; Accepted for publication in Phys. Rev. A
We gave our glorious laddies : Canadian women's war poetry, 1915-1920
Creators: name: Campbell, Rebecca
Publisher: name: University of British Columbia
Year: 2011

description: Women's home-front poetry of the Canadian Great War (1914-1918) betrays a conflicted sense of Canadian identity, stressing as it does both the familial continuities of the Commonwealth and the new sovereignty celebrated by patriots who saw the war as an opportunity to assert Canadian independence. At the same time it traces a conflicted sense of female duty in wartime, as women become both the symbolic avatars of their nation and the producers of national. This thesis addresses the context of women's popular poetry during the Great War, with specific reference to the propagandistic project of the Canadian War Records Office and, more specifically, the poetry of Katherine Hale (1874 - 1956) and Mrs. A. Durie (1856 - 1933). Their work, and the work of other poets, valorise female sacrifice in war-time, and voice male soldiers on the battlefield in a kind of ventriloquism. Both of these strategies allow disenfranchised, colonial women to write back to the war, to both challenge and contribute to Canada as a national project.
Deep learning-based transformation of the H&E stain into special stains
Creators: name: de Haan, Kevin
name: Zhang, Yijie
name: Zuckerman, Jonathan E.
name: Liu, Tairan
name: Sisk, Anthony E.
name: Diaz, Miguel F. P.
name: Jen, Kuang-Yu
name: Nobori, Alexander
name: Liou, Sofia
name: Zhang, Sarah
name: Riahi, Rana
name: Rivenson, Yair
name: Wallace, W. Dean
name: Ozcan, Aydogan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Medical Physics (physics.med-ph)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: I.2; I.2.1; I.2.6; I.2.10; I.3; I.3.3; I.4.3; I.4.4; I.4.9; J.3
subject: 68T01, 68T05, 68U10, 62M45, 78M32, 92C50, 92C55, 94A08

description: Pathology is practiced by visual inspection of histochemically stained slides. Most commonly, the hematoxylin and eosin (H&E) stain is used in the diagnostic workflow and it is the gold standard for cancer diagnosis. However, in many cases, especially for non-neoplastic diseases, additional "special stains" are used to provide different levels of contrast and color to tissue components and allow pathologists to get a clearer diagnostic picture. In this study, we demonstrate the utility of supervised learning-based computational stain transformation from H&E to different special stains (Masson's Trichrome, periodic acid-Schiff and Jones silver stain) using tissue sections from kidney needle core biopsies. Based on evaluation by three renal pathologists, followed by adjudication by a fourth renal pathologist, we show that the generation of virtual special stains from existing H&E images improves the diagnosis in several non-neoplastic kidney diseases sampled from 58 unique subjects. A second study performed by three pathologists found that the quality of the special stains generated by the stain transformation network was statistically equivalent to those generated through standard histochemical staining. As the transformation of H&E images into special stains can be achieved within 1 min or less per patient core specimen slide, this stain-to-stain transformation framework can improve the quality of the preliminary diagnosis when additional special stains are needed, along with significant savings in time and cost, reducing the burden on healthcare system and patients.
description: 27 Pages, 6 Figures
The impact of the warm phase of ENSO (El Niño Southern Oscillation) events on water resource availability of tropical catchments in Central Sulawesi, Indonesia
Creators: name: Leemhuis, C.
name: Gerold, G.
Publisher: name: FID GEO
Year: 2006

description: Precipitation anomalies caused by the warm phase (El Niño) of the ENSO cycle lead to a strong decrease of water resources in South-East Asia. The aim of this work is to study the impact of warm phase ENSO caused precipitation anomalies on the water balance of a mesoscale tropical catchment in Central Sulawesi, Indonesia using a scenario analysis. We applied statistically generated precipitation anomalies caused by warm phase ENSO events on a validated hydrological model of the Palu River catchment (2694 km2) to investigate the implications of the generated ENSO scenarios on the total annual water balance, the annual discharge regime and the discharge variability. Moreover we analysed the influence of various catchment characteristics during warm phase ENSO conditions on the discharge variability through a comparison of different sub-catchment types. The results of the scenario analysis proved a severe decline of the annual discharge rate during warm phase ENSO conditions and an increase of the overall discharge variability
Photometric Scaling Relations for Bulges of Galaxies
Creators: name: Ravikumar, C. D.
name: Barway, Sudhanshu
name: Kembhavi, Ajit
name: Mobasher, Bahram
name: Kuriakose, V. C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the photometric parameters of the bulges of galaxies of different Hubble types including ellipticals, lenticulars, early and late type spirals and early type dwarf galaxies. Analyzing the distributions of various photometric parameters, and two- and three-dimensional correlations between them, we find that there is a difference in the correlations exhibited by bright (M_K < -22) and faint bulges, irrespective of their Hubble type. Importantly, the bright bulges, which include typically E/S0 galaxies and bulges of early type spirals, are tightly distributed around a common photometric plane (PP), while their fainter counter parts, mainly bulges of late type spirals and dwarf galaxies show significant deviation from the planar distribution. We show that the specific entropy, determined from the bulge structural parameters, systematically increases as we move from late to early Hubble types. We interpret this as evidence for hierarchical merging and passive evolution scenarios for bright and faint bulges respectively.
description: 27 pages, 16 figures, accepted in A&A
Limit theorems for a random walk with memory perturbed by a dynamical system
Creators: name: Coletti, Cristian F.
name: de Lima, Lucas R.
name: Gava, Renato J.
name: Luiz, Denis A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We introduce a new random walk with unbounded memory obtained as a mixture of the Elephant Random Walk and the Dynamic Random Walk which we call the Dynamic Elephant Random Walk (DERW). As a consequence of this mixture the distribution of the increments of the resulting random process is time dependent. We prove a strong law of large numbers for the DERW and, in a particular case, we provide an explicit expression for its speed. Finally, we give sufficient conditions for the central limit theorem and the law of the iterated logarithm to hold.
description: We corrected a typo in the definition of the ERW
The Australian Research Council experience: connecting to ORCID for grant applications
Creators: name: Emery, Kylie
Publisher: name: ORCID
Year: 2020
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences

description: Research funder Australian Research Council shares their experience utilizing ORCID in its grant application process and reducing administrative burden for their academic community.
Sisters and Sisterhood : An Analysis of American Sororities, Collegiate Culture, and Second Wave Feminism at Duke University in the Late Twentieth Century
Creators: name: Donohue, Tiernan
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 4303
subject: Historical studies
classificationCode: 4405
subject: Gender studies

description: Description to be added
Major Uses of Land in the United States, 2012
Creators: name: Bigelow, Daniel
name: Borchers, Allison
name: Bigelow, Daniel
name: Borchers, Allison
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: Livestock Production/Industries
subject: Resource /Energy Economics and Policy
subject: Land use
subject: land-use change
subject: agricultural land
subject: nonagricultural land
subject: cropland
subject: forest-use land
subject: forestland
subject: pasture
subject: rangeland
subject: rural residential land
subject: urban land

description: The United States has a total land area of about 2.3 billion acres. In 2012, the major land uses were grassland pasture and rangeland at 655 million acres (29 percent of U.S. total); forest-use land at 632 million (28 percent); cropland at 392 million acres (17 percent); special uses (primarily parks and wildlife areas) at 316 million acres (14 percent); miscellaneous uses (such as wetlands, tundra, and unproductive woodlands) at 196 million acres (9 percent); and urban land at 70 million acres (3 percent). This study presents findings from the most recent (2012) inventory of U.S. major land uses, drawing on data from USDA, the U.S. Census Bureau, public land management and conservation agencies, and other sources. The data are collected for each State to estimate the use of several broad classes and subclasses of agricultural and nonagricultural land over time. National and regional trends in land use are compared with earlier major land-use estimates.
Search for the high-spin members of the $α$:2n:$α$ band in $^{10}$Be
Creators: name: Upadhyayula, Sriteja
name: Rogachev, Grigory V.
name: Bishop, Jack
name: Goldberg, Vladilen Z.
name: Hooker, Joshua
name: Hunt, Curtis
name: Jayatissa, Heshani
name: Koshchiy, Evgeniy
name: Uberseder, Ethan
name: Volya, and Alexander
name: Roeder, Brian T.
name: Saastamoinen, Antti
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Method: Measuring excitation functions for $^{6}$He+$α$ scattering, populating states in the excitation energy range from 4.5 MeV to 8 MeV in $^{10}$Be using a $^6$He rare-isotope beam and a thick helium gas target. Results: No new excited states in $^{10}$Be have been observed. Stringent limitation on the possible degree of $α$-clustering of the hypothetical yrast 6$^+$ state has been obtained. Conclusions: The high-spin members of the $α$:2n:$α$ molecular-like rotational band configuration, that is considered to have a 0$^+$ bandhead at 6.18 MeV, either do not exist or have small overlap with the $^{6}$He(g.s.)+$α$ channel.
Influence of Fertilizer and Legume Crop Residues on Maize Yields
Creators: name: Lugo-Lopez, M. A.
name: Perez-Esolar, Raul
name: Scott, T. W
name: Lugo-Lopez, M. A.
name: Perez-Esolar, Raul
name: Scott, T. W
Publisher: name: Unknown
Year: 1978
Subjects: Crop Production/Industries
Land Economics/Use

description: Studies to explore the N supplied by legume and nonlegume crop residues through crop rotation experiments on a sandy Oxisol and a clayey Ultisol were conducted. In the initial crop, soybean yields were only fair (1,680 to 1,792 kg/ha). Mungbeans (1,125 to 2,044 kg/ha), winged beans (1,456 to 2,800 kg/ha), and maize yields (4,480 to 6,123 kg/ha) were good. In the second crop (maize at both sites), grain yields were striking as a result of fertilizer N, regardless of the previous crop. On the Ultisol, maize tended to yield more following the legumes than following maize, but differences were not statistically significant. About 80%of the maximum maize yield was attained when maize followed the legumes and no fertilizer N was applied, especially in the Ultisol.
Quantum fluctuation of stress tensor in a higher-derivative scalar field theory around a cosmic string
Creators: name: Kan, Nahomi
name: Kuniyasu, Masashi
name: Shiraishi, Kiyoshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate the vacuum fluctuation of the stress tensor of a higher-derivative theory around a thin cosmic string. To this end, we adopt the method to obtain the stress tensor from the effective action developed by Gibbons et al. By their method, the quantum stress tensor of higher-derivative scalar theories without self-interaction is expressed as a simple sum of quantum stress tensors of free massive scalar fields. Unlike the vacuum expectation value of the scalar field squared obtained in the similar model, there appears no reduction of the values near the conical singularity.
description: 10 pages, 6 figures. final version
Effect of Potash Fertilization on the Salt Tolerance of Maize, Irrigated with Saline Water
Creators: name: Weir, C.C.
name: Weir, C.C.
Publisher: name: Unknown
Year: 1978
Subjects: Crop Production/Industries
Land Economics/Use

description: The effect of applying high levels of Potash fertilizer, on the salt tolerance of maize, was investigated under greenhouse experimental conditions. It was found that high levels of applied K significantly reduced the uptake of Na, and resulted in approximately 20% greater dry matter yield compared to the control (KQ) treatments. The K/Na ratio in the maize tops, was shown go be a good index of salt injury. Ratios of K/Na less than 10 were associated with poor yields. The effect of high salinity and Potash applications on the uptake of other nutrients was also ivestigated. High levels of Potash consistently decreased Magnesium and Nitrogen uptake, but somehow slightly increased Phosphate uptake. The practical implications of using Potash applications to offset salinity injuries, caused by using saline irrigation water, are discussed, within the context of a nutrient balance for maize.
Big Code != Big Vocabulary: Open-Vocabulary Models for Source Code
Creators: name: Karampatsis, Rafael-Michael
name: Babii, Hlib
name: Robbes, Romain
name: Sutton, Charles
name: Janes, Andrea
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Statistical language modeling techniques have successfully been applied to large source code corpora, yielding a variety of new software development tools, such as tools for code suggestion, improving readability, and API migration. A major issue with these techniques is that code introduces new vocabulary at a far higher rate than natural language, as new identifier names proliferate. Both large vocabularies and out-of-vocabulary issues severely affect Neural Language Models (NLMs) of source code, degrading their performance and rendering them unable to scale. In this paper, we address this issue by: 1) studying how various modelling choices impact the resulting vocabulary on a large-scale corpus of 13,362 projects; 2) presenting an open vocabulary source code NLM that can scale to such a corpus, 100 times larger than in previous work; and 3) showing that such models outperform the state of the art on three distinct code corpora (Java, C, Python). To our knowledge, these are the largest NLMs for code that have been reported. All datasets, code, and trained models used in this work are publicly available.
description: 13 pages; to appear in Proceedings of ICSE 2020
String Scattering from Decaying Branes
Creators: name: Balasubramanian, Vijay
name: Keski-Vakkuri, Esko
name: Kraus, Per
name: Naqvi, Asad
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop the general formalism of string scattering from decaying D-branes in bosonic string theory. In worldsheet perturbation theory, amplitudes can be written as a sum of correlators in a grand canonical ensemble of unitary random matrix models, with time setting the fugacity. An approach employed in the past for computing amplitudes in this theory involves an unjustified analytic continuation from special integer momenta. We give an alternative formulation which is well-defined for general momenta. We study the emission of closed strings from a decaying D-brane with initial conditions perturbed by the addition of an open string vertex operator. Using an integral formula due to Selberg, the relevant amplitude is expressed in closed form in terms of zeta functions. Perturbing the initial state can suppress or enhance the emission of high energy closed strings for extended branes, but enhances it for D0-branes. The closed string two point function is expressed as a sum of Toeplitz determinants of certain hypergeometric functions. A large N limit theorem due to Szego, and its extension due to Borodin and Okounkov, permits us to compute approximate results showing that previous naive analytic continuations amount to the large N approximation of the full result. We also give a free fermion formulation of scattering from decaying D-branes and describe the relation to a grand canonical ensemble for a 2d Coulomb gas.
description: 36 pages, harvmac; v2: references added; v3: references added
title: The tectonic evolution of the Eastern Limassol Forest Complex, Cyprus
Creators: name: MacLeod, Christopher John
Publisher: name: The Open University
Year: 1988

description: The Eastern Limassol Forest Complex (ELFC) lies at the southern margin of the Troodos ophiolite, Cyprus, and preserves a Penrose-type stratigraphy with a 4km-thick crustal sequence. The ELFC is separated from the main part of the Troodos Massif by an east-west trending fault zone, the Arakapas Fault Belt, which earlier studies suggest formed the northern wall of an oceanic transform fault. Transform-related structures are identifiable in the northern part of the ELFC, and volcaniclastic turbiditic sediments intercalated with lava flows attest to the existence of a bathymetric depression coincident with the fault zone. A southern boundary to the transform fault zone is recognised within the ELFC, with the abrupt disappearance of interlava sediments and E-W trending structures. Crust to the south of the boundary was generated at an 'Anti-Troodos' ridge axis. A width of c.5km is implied for the transform. The accretionary geometry of the ELFC has been extensively modified by postvolcanic tectonism. Sustained extension oblique to the trend of the transform has resulted in the reactivation of transform-related structures as normal faults, which have been rotated 'falling domino' style, together with the greater part of the axis sequence crust, above a decollement horizon located near to the petrological Moho. Extensional strain was preferentially accommodated in the transform-tectonised north of the ELFC. In the south, NW-striking normal faults are more steeply dipping, and block tilting is less extreme. Mesostructural data suggest that these normal faults have been reactivated as oblique dextral strike-slip faults and, with subsidiary NE-trending structures, are responsible for clockwise block rotations about steeply plunging axes. The timing of the deformation is constrained with respect to the overlying pelagic sediments, which suggest that the extension continued from the Turonian (i.e. almost immediately after ophiolite formation) to the late Campanian, and that the strike-slip reactivation occurred in late Campanian to early Maastrictian times. Palaeomagnetic studies have shown that Cyprus experienced a 90· anticlockwise rotation, which commenced in the Campanian-Maastrichtian interval, and it is argued that the late dextral strike-slip movements in the southern ELFC reflect deformation close to the margin of the rotating Cyprus microplate. The extensional reactivation of the transform in the Turonian-Campanian may correspond to an anticlockwise torque applied to the Troodos ocean floor prior to actual rotation. The rotation of Cyprus is thought to have been a consequence of the collision of the Arabian continental promontory to the east with an intra-oceanic subduction zone (above which Troodos was created) in the Upper Cretaceous.
Resonances as Viscosity Limits for Exponentially Decaying Potentials
Creators: name: Xiong, Haoren
Publisher: name: arXiv
Year: 2020
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We show that the complex absorbing potential (CAP) method for computing scattering resonances applies to the case of exponentially decaying potentials. That means that the eigenvalues of $-Δ+ V - iεx^2$, $|V(x)|\leq C e^{-2γ|x|}$ converge, as $ ε\to 0+ $, to the poles of the meromorphic continuation of $ ( -Δ+ V -λ^2 )^{-1} $ uniformly on compact subsets of $\textrm{Re}\,λ>0$, $\textrm{Im}\,λ>-γ$, $\argλ> -π/8$.
title: Studies on the use of alpha-silyl substituted carbanions in organic synthesis
Creators: name: Soobramanien, Marie-Claire Chantal
Publisher: name: The Open University
Year: 1989

description: The stereochemical outcome of the Peterson olefination reaction was studied using o(-trimethylsilylbenzyl carbanion and a series of N-aliphatic/aromatic azomethines. All reactions led stereoselectively to trans-olefins in moderate to low yields. The Peterson intermediate was isolated when neopentylideneaniline was used at room temperature. This intermediate, on treatment with base or acid, gives the corresponding trans-alkene and trimethylsilylphenylmethane, thus providing unambiguous evidence for the reversibility of the first step in the olefination process. Silyl-substituted aziridines were synthesised using thermolytic and photolytic reactions between - chloromethyltrimethylsilyl carbanion and N-benzylidenepropylamine or N-benzylideneaniline. The former system gave cis-l-propyl- 2-trimethylsilyl-3-phenylaziridine in moderate yield and the latter gave trans- and cis-1-phenyl-2-trimethylsilyl- 3-phenylaziridine (1: 1) in good yield. These silylaziridines were shown to undergo ring-preserving reactions on alkylation, protonation or desilylation. Further, on reacting with nucleophiles such as hydrogen halides and trimethylsilyl reagents, ring-opened products are formed. The silylaziridines react analogously to silyl epoxides with hydrogen halides; these involve an Sy2 mechanism and lead to the corresponding ring-opened adduct which reacts further to give the protonated derivative. Silylaziridines react with trimethylsilyl iodide to give the trans-ß-silylenamine via an SN1-type process and do not react with trimethylsilyl- chloride, bromide or pseudohalides. Trans- and cis-l-phenyl-2-trimethylsilyl epoxides react with trimethylsilyl halides via an S2 mechanism to give F-haloolefins whereas 1,1-diphenyl-2-trimethylsilyl epoxide reacts with trimethylsilyl halides or pseudohalides to give 1,1-diphenyl-2-trimethylsilylenol ether in quantitative yields via an SN1 process. However, 2-tri"- ýmethylsilyl-l-oxa&piro[2,5]octane gives the f-pseudohaloolefin via an SN2 mechanism on reaction with trimethylsilyl pseudohalides; tran -/ci-l-phenyl-2-trimethylsilylepoxides give the corresponding olefin with trimethysilyl azide and the corresponding adduct with trimethylsilyl cyanide. The impure isomers, obtained from the reaction between c-l-propyl-2-trimethylsilyl-3-phenylaziridine and (+)-1,1'-binaphthalene-2,2'-diyl hydrogen phosphate were separated by fractional crystallisation and shown to be optically active.
Mafic Late Miocene–Quaternary volcanic rocks in the Kamchatka back arc region: implications for subduction geometry and slab history at the Pacific–Aleutian junction
Creators: name: Volynets, Anna
name: Churikova, Tatiana
name: Wörner, Gerhard
name: Gordeychik, Boris
name: Layer, Paul
Publisher: name: Springer-Verlag
Year: 2009

description: New 40Ar/39Ar and published 14C ages constrain voluminous mafic volcanism of the Kamchatka back-arc to Miocene (3–6 Ma) and Late Pleistocene to Holocene (<1 Ma) times. Trace elements and isotopic compositions show that older rocks derived from a depleted mantle through subduction fluid-flux melting (>20%). Younger rocks form in a back arc by lower melting degrees involving enriched mantle components. The arc front and Central Kamchatka Depression are also underlain by plateau lavas and shield volcanoes of Late Pleistocene age. The focus of these voluminous eruptions thus migrated in time and may be the result of a high fluid flux in a setting where the Emperor seamount subducts and the slab steepens during rollback during terrain accretions. The northern termination of Holocene volcanism locates the edge of the subducting Pacific plate below Kamchatka, a “slab-edge-effect” is not observed in the back arc region.
Isotope and REE Characterization of Groundwater Aquifers within the Aquifer Storage and Recovery Programme in Sukhothai (N.-Thailand)
Creators: name: Hengsuwan, Manussawee
name: Yongprawat, Monthon
name: Simon, Klaus
name: Hansen, Bent T.
Publisher: name: FID GEO
Year: 2016

description: Aquifer Storage and Recovery (ASR) was a pilot project for solving flood and drought problem in the northern part of Chao Phraya River basin, Thailand. This part of Thailand always faces flooding in rainy season and drought during dry season every year. The overexploitation of groundwater during dry season leads to continuously decline of water level in this area. In this project, the excessive surface water during rainy season was stored by injection of this treated surface water through recharge wells into the underground aquifers. This would serve to raise the water level, which can be extracted for use during the dry season. To assess the efficiency of the ASR process some tracers are required. The aim of this study is to prove the suitability of natural tracers to follow up the artificial recharge process; emphasis will be placed on Strontium (Sr) isotopic composition. The results showed that the change in 87Sr/86Sr ratios could be observed during an artificial recharge due to the different isotopic fingerprint of surface water and groundwater. However, the flow direction of the injected water cannot be clearly interpreted because of the limited number of monitoring wells, small distance between each monitoring well and the short duration of injection.
description: Open-Access-Publikationsfonds 2016
The Paleoseismic Database of Germany and Adjacent Regions PalSeisDB v1.0
Creators: name: Hürtgen, Jochen
name: Reicherter, Klaus
name: Spies, Thomas
name: Geisler, Claudia
name: Schlittenhardt, Jörg
Publisher: name: FID GEO
Year: 2020

description: Central Europe is an intraplate domain which is characterized by low to moderate seismicity with records of larger seismic events occurring in historical and recent times. These records of seismicity are restricted to just over one thousand years. This does not reflect the long seismic cycles in Central Europe which are expected to be in the order of tens of thousands of years. Therefore, we have developed a paleoseismic database (PalSeisDB) that documents the records of paleoseismic evidence (trenches, soft-sediment deformation, mass movements, etc.) and extends the earthquake record to at least one seismic cycle. It is intended to serve as one important basis for future seismic hazard assessments. In the compilation of PalSeisDB, paleoseismic evidence features are documented at 129 different locations in the area of Germany and adjacent regions.
description: research
A 75-dB digitally programmable CMOS variable gain amplifier
Creators: name: Rahmatian, Behnoosh
Publisher: name: University of British Columbia
Year: 2011

description: A 75-dB DIGITALLY PROGRAMMABLE CMOS VARIABLE GAIN AMPLIFIER Variable-gain amplifiers (VGAs) are essential building blocks of many communication systems. In this thesis, a monolithic low-power digitally programmable VGA with 75dB of gain range is presented. The VGA is targeted for power line communication systems in particular for automotive application; however, it is a generic block that can be use in other applications. The core of the design is based on the low-distortion source-degenerated differential amplifier structure. A gm-boosting circuit is also used to provide higher gain and improve gain accuracy. In this work, to control the gain a new technique is used which is based on digitally controlling: 1) the source-degeneration resistance, and 2) an additional resistance between the differential output nodes of each gain stage. The changes in the source-degeneration resistance handle the coarse tuning, and the changes in the latter resistance are used for fine gain tuning. The overall VGA consists of three such gain stages. As a proof of concept, a single gain stage with a gain range of 24dB and programmable in 2dB gain steps has been fabricated in a 0.18μm CMOS technology. The chip is tested and measurement results are obtained. Based on these measurement results, the design of the gain stage is optimized and a three-stage 75dB VGA is designed. Each stage has a digitally tunable gain range of 25dB, and fine gain tuning of 2.5dB per step. The bandwidth of the VGA is higher than 140MHz, and the gain error is less than 0.3dB. The overall VGA draws 6.5mA from a 1.8V supply. The noise figure of the system at maximum gain is 12.5dB, and the IIP3 is 14.4dBm at minimum gain. These performance parameters are either better or compare favorably with the reported state-of-the-art VGAs.
The physical limits of nanoLEDs and nanolasers for optical communications
Creators: name: Romeira, Bruno
name: Fiore, Andrea
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Nanoscale light sources are being intensively investigated for their potential to enable low-energy, high-density optical communication and sensing systems. Both nano-light-emitting diodes (nanoLEDs) and nanolasers have been considered, based on advanced nanophotonic concepts such as photonic crystals and plasmonic structures, with dimensions well into the sub-micrometer domain. With decreasing dimensions, light-matter interaction becomes stronger, potentially leading to efficient and ultrafast radiative emission, both in the spontaneous and stimulated regime. These features have created wide expectations for the practical prospects of such nanoscale light sources, in particular for optical interconnects. In this article we examine the limits to the downscaling of LEDs and lasers, and ask ourselves which type of source is most suited to ultralow-power optical communications. Based on simple physical considerations on the scaling of spontaneous and stimulated emission rates for semiconductor active regions at room temperature, we analyze the speed and energy limits for nanoLEDs and nanolasers as a function of their size. The role of spontaneous emission enhancement (Purcell effect) in practical nanophotonic sources is also revisited. The main conclusion is that nanoLEDs reach a fundamental energy/speed limit for data rates exceeding a few Gb/s, whereas nanolasers with active dimensions in the range of few 100s nm may enable direct modulation rates larger than 40 Gb/s at power levels adequate for short-distance and low-energy optical interconnects.
description: 13 pages, 8 figures