cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Calibration of the CMS Drift Tube Chambers and Measurement of the Drift Velocity with Cosmic Rays
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: This paper describes the calibration procedure for the drift tubes of the CMS barrel muon system and reports the main results obtained with data collected during a high statistics cosmic ray data-taking period. The main goal of the calibration is to determine, for each drift cell, the minimum time delay for signals relative to the trigger, accounting for the drift velocity within the cell. The accuracy of the calibration procedure is influenced by the random arrival time of the cosmic muons relative to the LHC clock cycle. A more refined analysis of the drift velocity was performed during the offline reconstruction phase, which takes into account this feature of cosmic ray events.
Applying the extended molecule approach to correlated electron transport: important insight from model calculations
Creators: name: Baldea, Ioan
name: Koppel, Horst
name: Maul, Robert
name: Wenzel, Wolfgang
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Theoretical approaches of electronic transport in correlated molecules usually consider an extended molecule, which includes, in addition to the molecule itself, parts of electrodes. In the case where electron correlations remain confined within the molecule, and the extended molecule is sufficiently large, the current can be expressed by means of Laudauer-type formulae. Electron correlations are embodied into the retarded Green function of a sufficiently large but isolated extended molecule, which represents the key quantity that can be accurately determined by means of ab initio quantum chemical calculations. To exemplify these ideas, we present and analyze numerical results obtained within full CI calculations for an extended molecule described by the interacting resonant level model. Based on them, we argue that for organic electrodes the transport properties can be reliably computed, because the extended molecule can be chosen sufficiently small to be tackled within accurate ab initio methods. For metallic electrodes, larger extended molecules have to be considered in general, but a (semi-)quantitative description of the transport should still be possible particularly in the typical cases where electron transport proceeds by off-resonant tunneling. Our numerical results also demonstrate that, contrary to the usual claim, the ratio between the characteristic Coulomb strength and the level width due to molecule-electrode coupling is not the only quantity needed to assess whether electron correlation effects are strong or weak.
A wavelet analysis of the Rosenblatt process: chaos expansion and estimation of the self-similarity parameter
Creators: name: Bardet, Jean-Marc
name: Tudor, Ciprian
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistics Theory (math.ST)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: By using chaos expansion into multiple stochastic integrals, we make a wavelet analysis of two self-similar stochastic processes: the fractional Brownian motion and the Rosenblatt process. We study the asymptotic behavior of the statistic based on the wavelet coefficients of these processes. Basically, when applied to a non-Gaussian process (such as the Rosenblatt process) this statistic satisfies a non-central limit theorem even when we increase the number of vanishing moments of the wavelet function. We apply our limit theorems to construct estimators for the self-similarity index and we illustrate our results by simulations.
GX 9+9: Variability of the X-Ray Orbital Modulation
Creators: name: Harris, Robert J.
name: Levine, Alan M.
name: Durant, Martin
name: Kong, Albert K. H.
name: Charles, Phil
name: Shahbaz, Tariq
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Results of observations of the Galactic bulge X-ray source GX 9+9 by the All-Sky Monitor (ASM) and Proportional Counter Array (PCA) onboard the Rossi X-ray Timing Explorer are presented. The ASM results show that the 4.19 hour X-ray periodicity first reported by Hertz and Wood in 1987 was weak or not detected for most of the mission prior to late 2004, but then became strong and remained strong for approximately 2 years after which it weakened considerably. When the modulation at the 4.19 hour period is strong, it appears in folded light curves as an intensity dip over slightly less than 30% of a cycle and is distinctly nonsinusoidal. A number of PCA observations of GX 9+9 were performed before the appearance of strong modulation; two were performed in 2006 during the epoch of strong modulation. Data obtained from the earlier PCA observations yield at best limited evidence of the presence of phase-dependent intensity changes, while the data from the later observations confirm the presence of flux minima with depths and phases compatible with those apparent in folded ASM light curves. Light curves from a Chandra observation of GX 9+9 performed in the year 2000 prior to the start of strong modulation show the possible presence of shallow dips at the predicted times. Optical observations performed in 2006 while the X-ray modulation was strong do not show an increase in the degree of modulation at the 4.19 hour period. Implications of the changes in modulation strength in X-rays and other observational results are considered.
description: 12 pages, 10 figures (1 color), in emulateapj format
Preferences of mountain park visitors regarding some British Columbia and Alberta forest habitat
Creators: name: Apt, Kamill J.Z.
Publisher: name: University of British Columbia
Year: 2011

description: Information was collected in 1967 from 1116 visitors to some mountain parks in British Columbia and Alberta regarding their preferences, knowledge and interest in the kind and condition of the surrounding forest habitat. Data concerning visitor characteristics such as socioeconomic standing, camping experience, age, sex, regional origin, level of education, type of equipment used (tents, trailers or campers) and reasons for selecting the campground were also recorded. Because of the difficulty quantifiable nature of the data, analyses had to be done using only tests of independence and simple correlations of the observed frequencies. It was found that most park visitors were travellers staying overnight, then moving on, rather than camping for several days. Two-thirds of them were able to recognize the common tree species of the parks, but their preferences regarding forest habitat were weak and vague. Those who were well satisfied with the facilities and the general conditions of the campground tended to prefer some particular feature of the local forest. The firm opinions and strong preferences of the small group of wilderness enthusiasts reported in other surveys were not found among the park visitors sampled in this study.
The Contemporary Australian Book: A product of its time
Creators: name: McLean, KA
Publisher: name: University Of Tasmania
Year: 2023

description: The research explores the nature of the book and book culture in contemporary Australia. It examines the ways in which the contemporary Australian book, that is the printed and bound, commercially produced book, is a product of its time, reflecting not only the conditions of its creation, manufacture, transmission, and use, but also the social, political, intellectual, economic, and cultural contexts in which these conditions occur. A model derived from histoire du livre scholarship is presented and applied to both the general conditions of Australian book culture in the early 1990s, and to a single contemporary book, The Orchard written by Drusilla Modjeska and published by Pan Macmillan Australia. The model represents the 'life-cycle' of the generic book and encompasses the inter-connected events of authorship, publication, printing, distribution, sales, reception, use, and preservation, as well as the contexts in which these events occur. A brief historical overview of the development in Australia of each event is presented, along with an examination of the actual nature and conditions of, and contextual influences on, each event as it applied to The Orchard in the years 1994 and 1995. The centrality of commercial influences is identified as the major factor in determining the nature of the book in contemporary Australia. The book is essentially a commercial product, produced and distributed in a commercial environment for profit. That the book is also a significant cultural artefact is a source of tension within Australian book culture, particularly among authors, publishers, and booksellers. Other significant influences on the nature of the contemporary Australian book are identified and discussed. These indude cultural, intellectual, and historical influences, the effects of government intervention, and the influence of women's participation in book culture.
A consistent statistical treatment of the renormalized mean-field t-J model
Creators: name: Jȩdrak, Jakub
name: Spałek, Jozef
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A variational treatment of the Gutzwiller - renormalized t-J Hamiltonian combined with the mean-field (MF) approximation is proposed, with a simultaneous inclusion of additional consistency conditions. Those conditions guarantee that the averages calculated variationally represent true mean-field expectation values. This is not ensured a priori when the effective Hamiltonian contains renormalization factors which depend on the mean-field averages. A comparison with previous mean-field treatments is made for both superconducting (d-RVB) and normal states and encompasses calculations of both the superconducting gap and the renormalized hopping amplitudes, as well as the electronic structure. The $C_{4v}$-symmetry breaking in the normal phase - the Pomeranchuk instability (PI) - is also analyzed.
description: 5 pages, 4 figures, 2 tables. Minor typos have been fixed to make this version compatible with that published in Phys. Rev. B.
Aligning the CMS Muon Chambers with the Muon Alignment System during an Extended Cosmic Ray Run
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The alignment system for the muon spectrometer of the CMS detector comprises three independent subsystems of optical and analog position sensors. It aligns muon chambers with respect to each other and to the central silicon tracker. System commissioning at full magnetic field began in 2008 during an extended cosmic ray run. The system succeeded in tracking muon detector movements of up to 18 mm and rotations of several milliradians under magnetic forces. Depending on coordinate and subsystem, the system achieved chamber alignment precisions of 140-350 microns and 30-200 microradians, close to the precision requirements of the experiment. Systematic errors on absolute positions are estimated to be 340-590 microns based on comparisons with independent photogrammetry measurements.
Casimir effect for parallel plates in de Sitter spacetime
Creators: name: Elizalde, E.
name: Saharian, A. A.
name: Vardanyan, T. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Wightman function and the vacuum expectation values of the field squared and of the energy-momentum tensor are obtained, for a massive scalar field with an arbitrary curvature coupling parameter, in the region between two infinite parallel plates, on the background of de Sitter spacetime. The field is prepared in the Bunch-Davies vacuum state and is constrained to satisfy Robin boundary conditions on the plates. For the calculation, a mode-summation method is used, supplemented with a variant of the generalized Abel-Plana formula. This allows to explicitly extract the contributions to the expectation values which come from each single boundary, and to expand the second-plate-induced part in terms of exponentially convergent integrals. Several limiting cases of interest are then studied. Moreover, the Casimir forces acting on the plates are evaluated, and it is shown that the curvature of the background spacetime decisively influences the behavior of these forces at separations larger than the curvature scale of de Sitter spacetime. In terms of the curvature coupling parameter and the mass of the field, two very different regimes are realized, which exhibit monotonic and oscillatory behavior of the vacuum expectation values, respectively. The decay of the Casimir force at large plate separation is shown to be power-law (monotonic or oscillating), with independence of the value of the field mass.
description: 22 pages, 4 figures, added figures for a massless field, added reference, added discussions and comments on thermal effects
Modelling writing through reading an investigation into teacher rationale for the reading and writing programmes in secondary schools
Creators: name: Reeve, PH
Publisher: name: University Of Tasmania
Year: 2023

description: The primary concern of this project was the extent to which teachers of grade seven, eight and nine English in Southern Tasmanian secondary schools, during 1984, consciously sought to develop their students' ability to write and think, through having them write across a range of forms with their concomitant purposes and thinking process, and through using models of these writing kinds from literature. The study considers not only the intention of teachers in this, but also the potential of the writing tasks offered to students for developing their repertoire of writing kinds and of the potential of the literature resources for modelling such a repertoire. Further approaches and foci for investigation emanate from this exploratory study and recommendations are made which, it is hoped, will redirect teachers to attend increasingly both to the range of writing forms they offer students for composition, and to the appropriateness of the literature they select for modelling the writing kinds that they wish students to compose.
Biologiya o'qitish metodikasi o'quv jarayonini tashkil etish
Creators: name: Shomuratova Sevara Bekberganovna
name: Ruzmatova Zaynabjon Yuldashevna
name: Atajanov Otajon Yuldashevich
Publisher: name: Zenodo
Year: 2023
Subjects: biologiya o'qitish metodikasi, ilmiy tajriba, o'quv jarayonlarini tashkil etish, dars tahlili, amaliyot

description: Biologiya o‘qitish metodikasi o‘quv jarayonini tashkil etishning dolzarbligi haqiqatan ham juda kengdir. Biologiya o‘qituvchilari o‘quv jarayonini o‘zlashtirish uchun tashkil etilgan pedagogik texnologiyalardan foydalanishlari kerak bo‘ladi. Shuningdek o‘quv jarayoni tashkil etish uchun profesionallik va o‘quvchilarni mustahkamlash uchun ilmiy tadqiqotlar hissa qo‘shish zarur. Shuni uchun ushbu maqolada “Biologiya o‘qitish metodikasi o‘quv jarayonini tashkil etish” haqida ilmiy tadqiqot natijalari bayon etilgan
The twenty-four caprices of Niccolo Paganini: their significance for the history of violin playing and the music of the Romantic era
Creators: name: Borer, P
Publisher: name: University Of Tasmania
Year: 2023

description: This project attempts to describe and elucidate the compositional and instrumental character of the 24 Caprices of Niccolo Paganini and their far-reaching influence on violin playing and on musical creativity up to the present time. There is also the wider inspirational value which can be traced in literature, poetry, and fine arts. The first Chapter aims to place the 24 Caprices in their historical perspective. The reception accorded to the work by prominent musicians of the time (in particular Chopin, Liszt and Schumann) whose attention was drawn to the concept of virtuosity as an essential parameter in musical composition, is emphasised and examined. Chapter II investigates the unique significance of the dedication \alii Artisti\" which suggests a Romantic manifesto some ten years before Hugo's prefaces to Cromwell and to the Eastern Lyrics. Chapter III investigates Paganini's instrumental and musical background. It has often been claimed that Paganini was self-taught. However evidence of his all-important early training in violin and composition makes him the true heir of the old Italian masters representing at the same time a vital milestone for subsequent development of instrumental and compositional techniques. Paganini can thus be seen as representing a link between the classico-romantic and modem attitudes to instrumental writing reaching well into the twentieth century. In Chapter IV some aspects of Paganini's compositional and performing styles are examined. A striking interpretative concept (the \"suonare parlante\") is discussed. Special consideration is given to instrumental techniques which are not employed in the Caprices. Their absence suggests that the Caprices represent a perhaps intentionally restrained statement of Paganini's violinistic knowledge. Chapter V traces the origins of the violin Caprice and its development as a musical genre. The Appendices include an analysis of selected Caprices a diplomatic transcript of Caprices 1-4 a facsimile of the manuscript as well as supporting documents such as Feuillets d'album and scales written by Paganini."
Subtractive renormalization of the NN interaction in chiral effective theory up to next-to-next-to-leading order: S waves
Creators: name: Yang, C. -J.
name: Elster, Ch.
name: Phillips, D. R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We extend our subtractive-renormalization method in order to evaluate the 1S0 and 3S1-3D1 NN scattering phase shifts up to next-to-next-to-leading order (NNLO) in chiral effective theory. We show that, if energy-dependent contact terms are employed in the NN potential, the 1S0 phase shift can be obtained by carrying out two subtractions on the Lippmann-Schwinger equation. These subtractions use knowledge of the the scattering length and the 1S0 phase shift at a specific energy to eliminate the low-energy constants in the contact interaction from the scattering equation. For the J=1 coupled channel, a similar renormalization can be achieved by three subtractions that employ knowledge of the 3S1 scattering length, the 3S1 phase shift at a specific energy and the 3S1-3D1 generalized scattering length. In both channels a similar method can be applied to a potential with momentum-dependent contact terms, except that in that case one of the subtractions must be replaced by a fit to one piece of experimental data. This method allows the use of arbitrarily high cutoffs in the Lippmann-Schwinger equation. We examine the NNLO S-wave phase shifts for cutoffs as large as 5 GeV and show that the presence of linear energy dependence in the NN potential creates spurious poles in the scattering amplitude. In consequence the results are in conflict with empirical data over appreciable portions of the considered cutoff range. We also identify problems with the use of cutoffs greater than 1 GeV when momentum-dependent contact interactions are employed. These problems are ameliorated, but not eliminated, by the use of spectral-function regularization for the two-pion exchange part of the NN potential
description: 40 pages, 21 figures
Some observations on germination of Pseudotsuga menziesii (Mirb.) Franco pollen in vitro
Creators: name: Ho, Ronghui
Publisher: name: University of British Columbia
Year: 2011

description: Pollen morphology, pollen germination, and the effects of nutrients during pollen germination of Pseudotsuga menziesii (Mirb.) were studied. Pollen extraction was done at room temperature and the pollen morphology was studied using a staining technique. Several types of substances were introduced to the medium (double-distilled water) to culture the pollen. The substances were boric acid, calcium nitrate, potassium salt of gibberellie acid, indoleacetic acid, indolebutyric acid, naphthaleneacetic acid, thiamin, water extracts of Douglas-fir seeds, sucrose and stock solution. Incubation of pollen grains was carried out in the growth chamber where light intensity was about 3500 foot-candles during the 12-hour light period each day and the temperature was maintained at 20°G at night and 25°C during the day time. The relative humidity was kept at about 40 percent. Pollen grains were checked daily. Mature pollen grains were at the two-celled stage with two degenerated prothallial cells. When dry, the grains were cup-shaped, while turgid grains were spherical or elliptical without any furrows or sacs. The exine was thin being about 2 microns, and quite smooth. The intine was about 8 microns thick and was of uniform hyaline appearance. The pores in the exine were about 2 microns in diameter; those in the intine were enclosed with a membrane. Boron and calcium ions were very important to the pollen germination and elongation. Pollen germination was stimulated by growth-promoting substances, but was inhibited by fungicide and bactericide. Sucrose solution of 10 to 15 percent was recommended for the osmotic milieu and for nutrient purposes. Stock solution (boron 0.1 g., calcium nitrate 0.3 g., and double-distilled water 100 ml.) is the best for pollen germination and elongation. Pollen grains cultured in the medium containing stock solution B, 10 ppm IAA, and sucrose were found in four-celled stages (tube cell, two sperm cells and stalk cell) after five days. The actual germination of the Douglas-fir pollen in vitro was accomplished in this study. These may be of practical value in ensuring a uniformly high rate of seed production in Douglas-fir seed orchards, but field studies (artificial pollination) are needed to obtain further information.
Argument visualisation of the article 'Improving analytical reasoning and argument understanding: a quasi-experimental field study of argument visualization' (Cullen et al., 2018)
Creators: name: Post, Ger
Publisher: name: University of Melbourne
Year: 2023
Subjects: Learning sciences
Education assessment and evaluation
Educational technology and computing

description: Argument visualisation of the paper:
 Cullen, S., Fan, J., van der Brugge, E. et al. Improving analytical reasoning and argument understanding: a quasi-experimental field study of argument visualization. npj Science Learn 3, 21 (2018). https://doi.org/10.1038/s41539-018-0038-5
 An interactive version of the argument visualisation can be found on Prezi
The zoned ore deposits of the Zeehan mineral field
Creators: name: Both, RA
Publisher: name: University Of Tasmania
Year: 2023

description: The ore-bodies of the Zeehan mineral field are located between the township of Zeehand and the Devonian Heemskirk granite mass, some five miles west of Zeehan. Host rocks of the ores range in age from Younger Precambrian to Devonian, but most of the production has been from ore-bodies in Younger Precambrian to Lower Cambrian rocks.
The geology and genesis of the chlorite-carbonate alteration in the footwall of the Hellyer Volcanichosted Massive Sulphide (VHMS) deposit
Creators: name: Bradley, A
Publisher: name: University Of Tasmania
Year: 2023

description: The chlorite-carbonate alteration assemblage is an unusual feature in the footwall of the Hellyer volcanic~hosted massive sulphide deposit, Tasmania. Carbonate alteration is common to many VHMS deposits however its origin and characteristics has been rarely studied in detail. Chlorite-carbonate alteration is defined as texturally diverse dolomite in a matrix of fine-grained chlorite. This distinctive alteration is found at the top of the chlorite-alteration zone around the central and northern hydrothermal discharge sites beneath the deposit. On the ore contact ('contact zone'), the chlorite-carbonate assemblage occurs as thin discontinuous lenses. A lower stratiform chlorite-carbonate alteration zone ('lower zone') occurs approximately 40 metres below the contact zone, is more laterally continuous and only occurs on the west side of the east flank of the ore deposit. Carbonate alteration is associated with sericite, chlorite and quartz in the contact zone but is primarily associated with chlorite in the lower zone. Carbonate-chlorite assemblages have not been observed at greater depths in the footwall alteration pipe, or distal to the deposit. The carbonate mineralogy is Fe-dolomite or dolomite. Carbonate textures consist of large and small spheroids, rhombs, massive carbonate and veinlets. These textures appear to be associated with the initial porosity and permeability of the host rock. The various carbonate textures formed synchronously and have no textural zonation within the contact and lower alteration zones. Whole-rock geochemical studies indicate major gains in Ca, Mg, and Fe and losses in Si and Na in the chlorite-carbonate alteration compared to the unaltered footwall andesite. An absolute mass-gain of 18g/100g is achieved when converting an andesite to a chorite-carbonate altered rock. Carbon isotopes (013C) range between +0.31 and +2.80/00 and oxygen isotopes (0180) range from +10.29 to +18.29%0. Isotope studies indicate that the dolomites formed from upwelling hydrothermal fluid (modified seawater with a minor magmatic input) in the lower zone or from the mixing of the hydrothermal fluid with infiltrating seawater in the contact zone. Carbon isotopic values are uncharacteristically high at Hellyer compared with other VHMS deposits and could indicate deep-seated contributions of 013C. From distribution and textural evidence, it is proposed tha t the dolomite alteration formed by direct precipitation within chloritised volcaniclastic units near the seafloor or in shallow sub-seafloor units in the mixiI,lg zone between upwelling hydrothermal fluids and infiltrating seawater. As the hydrothermal fluid mixed with infiltrating seawater a pH increase counteracted the affects of cooling and caused dolomite to precipitate.
Towards a more consistent eco-hydrological modelling through multi-objective calibration: a case study in the Andean Vilcanota River basin, Peru
Creators: name: Fernandez-Palomino, Carlos Antonio
name: Hattermann, Fred F.
name: Krysanova, Valentina
name: Vega-Jácome, Fiorella
name: Bronstert, Axel
Publisher: name: Wallingford : IAHS Press
Year: 2021
Subjects: subject: Andes
subject: eco-hydrology
subject: equifinality
subject: hydrological signatures
subject: remote sensing
subject: SWAT
subject: 550

description: Most hydrological studies rely on a model calibrated using discharge alone. However, judging the model reliability based on such calibration is problematic, as it does not guarantee the correct representation of internal hydrological processes. This study aims (a) to develop a comprehensive multi-objective calibration framework using remote sensing vegetation data and hydrological signatures (flow duration curve–FDC, and baseflow index) in addition to discharge, and (b) to apply this framework for calibration of the Soil and Water Assessment Tool (SWAT) in a typical Andean catchment. Overall, our calibration approach outperformed traditional discharge-based and FDC signature-based calibration strategies in terms of vegetation, streamflow, and flow partitioning simulation. New hydrological insights for the region are the following: baseflow is the main component of the streamflow sustaining the long dry-season flow, and pasture areas offer higher water yield and baseflow than other land-cover types. The proposed approach could be used in other data-scarce regions with complex topography. © 2020 IAHS.
The geology of the Rosebery ore deposit
Creators: name: Brathwaite, RL
Publisher: name: University Of Tasmania
Year: 2023

description: The stratiform pyritic Zn-Pb-Cu and barite ore deposit at Rosebery is contained in a small shale lens within pyroclastic rocks (the Primrose Pyroclastics) which form part of the Mt. Read Volcanic Group -an extensive belt of silicic volcanic rocks of Cambrian age. The Primrose Pyroclastics consist of vitric, crystal and lithic tuffs, pyroclastic breccias, shale¬¨‚àëlenses and quartz-sericitechlorite schists derived from the pyroclastic rocks. The Primrose Pyroclastics contain probable ignimbrites and therefore may have been deposited on land. They are overlain to the east by massive lavas of the Mt, Black Volcanics. On the, west the Primrose Pyroclastics are flanked by and appear to intertongue with the Rosebery Group consisting of shale, quartz-wacke, greywacke conglomerate and dolomitic siltstone. The Cambrian rocks, particularly the volcanic formations, in the Rosebery area,have undergone low-grade regional metamorphism that has¬¨‚àëproduced mineral assemblages of the lower greenschist facies together with schistose fabrics. In the Rosebery Mine area the detailed stratigraphic sequence is: massive pyroclastics (vitric, crystal and lithic tuff), black slate, host rock ( siltstone with crystal tuff bands), Barite orebody, host rock, Z.n-Pb sulphide orebody with an Fe-Cu-rich basal zone, footwall schists, and footwall pyroclastics (crystal tuff). The contact between the massive pyroclastics and the underlying black slate or host rock appears, -ion part, to be a disconformity. The footwall schists below the¿í¬± Zn-Pb orebody possibly represent a zone of wallrock alteration.¿í¬± A post-ore basaltic dike is corelated with the Jurassic dole rite¿í¬± and is of interest because it contains probable rheomorphic galena-chalcopyrite veinlets.
Spatial structuring of port-linked flows; The Port of Vancouver, Canada, 1965.
Creators: name: Robinson, Ross
Publisher: name: University of British Columbia
Year: 2011

description: This study first postulates the existence of an "operational" port, a nodal organization of port functions, defined in terms of inter-port shipping linkages of foreign trade shipping in Southwestern British Columbia. A number of variables for each foreign trade vessel is programmed into a series of port by port adjacency matrices. The set of ports (nodes) and ship movements (linkages) is regarded as a planar graph and real values assigned to both linkages and nodes. Through matrix analysis and network theoretic concepts, the connectivity and orientations of ports within the area are defined. The analysis reveals not only the dominance of the port of Vancouver but also the high degree of dependence of a number of adjacent ports upon it. Second, the relationship of the nodal status of a port to its location in a system of ports and to its operational role as a node between discrete transportation networks is demonstrated by an examination of the movement patterns of export lumber and general cargo imports through the port of Vancouver. Lumber movement patterns to shipping points, derived from computer analyses, reveal the significance of innovatory shipping technologies, together with other necessary conditions, as the basis of explanation of nodal status and network structuring. The movements of general cargo imports are examined in a series of data matrices computationally derived from Shipping Manifest data. Each matrix preserves the relationship between foreland origin; and hinterland destination and the analysis clearly demonstrates the correlation of hinterland limits with the foreland origin of flows. Third, the relationships between the principles of nodal structuring and the concept of port hierarchy in spatial theory are explored. The adequacy of an alternative concept of port hierarchy derived from an analysis of the network of shipping linkages between ports is postulated and a descriptive model of port network development in British Columbia is formulated.
Disease Monitoring in Packing Houses
Creators: name: Griffin, Dee
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: Many approaches can be taken to monitor the disease status of herds. Inspection at packing houses performed routinely on selected animals has long been an important addition to health monitoring in swine and poultry. Prior to 1980, routine beef cattle inspections were typically limited to monitoring liver abscesses. This paper describes the technique of conducting a routine health management inspection in a modern packing plant. This technique has evolved over the past decade.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 2
A direct numerical simulation method for complex modulus of particle dispersions
Creators: name: Iwashita, T.
name: Kumagai, T.
name: Yamamoto, R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We report an extension of the smoothed profile method (SPM)[Y. Nakayama, K. Kim, and R. Yamamoto, Eur. Phys. J. E {\bf 26}, 361(2008)], a direct numerical simulation method for calculating the complex modulus of the dispersion of particles, in which we introduce a temporally oscillatory external force into the system. The validity of the method was examined by evaluating the storage $G'(ω)$ and loss $G"(ω)$ moduli of a system composed of identical spherical particles dispersed in an incompressible Newtonian host fluid at volume fractions of $Φ=0$, 0.41, and 0.51. The moduli were evaluated at several frequencies of shear flow; the shear flow used here has a zigzag profile, as is consistent with the usual periodic boundary conditions.
Review of Feedlot Pathology
Creators: name: Glock, Robert D.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: The term, bovine respiratory disease (BRD), is commonly used but has no specific meaning other than to describe a broad concept of various respiratory dysfunctions. Generally, respiratory disease can be classified as bronchial, interstitial, or metastatic pneumonias [1]. These categories include most types of respiratory disease that can be identified but obviously exclude some of the less commonly observed occurrences such as necrotic laryngitis and tumors.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 2
Conditionally invariant solutions of the rotating shallow water wave equations
Creators: name: Huard, Benoit
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35L60, 58J70, 35C05, 35Q35

description: This paper is devoted to the extension of the recently proposed conditional symmetry method to first order nonhomogeneous quasilinear systems which are equivalent to homogeneous systems through a locally invertible point transformation. We perform a systematic analysis of the rank-1 and rank-2 solutions admitted by the shallow water wave equations in (2 + 1) dimensions and construct the corresponding solutions of the rotating shallow water wave equations. These solutions involve in general arbitrary functions depending on Riemann invariants, which allow us to construct new interesting classes of solutions.
description: 23 pages, 2 figures
The Hoard: Paged virtual memory for the Cell BE SPE
Creators: name: Adamczewski, J
Publisher: name: University Of Tasmania
Year: 2023

description: The hoard is a paged virtual memory system for program data designed for the Cell Broadband Engine processor (Cell BE). The hoard makes it easier to utilise the performance available from the processor's Synergistic Processor Elements (SPEs). Traditional highperformance hardware cache designs are not well-suited to being implemented in software on the Cell BE architecture, so the hoard takes advantage of the SPE's wide registers to implement a multi-level page table. This permits fast, fully associative lookup into a dynamically-sized collection of data pages. Write-back of all pages is performed (not just those modified) and a first-in first-out page replacement method is used. This design is compared with the software cache provided with the IBM SDK for Multicore Acceleration ‚ÄövÑvÆ a fixed-size, four-way set associative design, using a traditional hardware approach ‚ÄövÑvÆ through extensive experiments with a diverse range of benchmarks. An in-depth analysis is made of the performance of the hoard design, addressing its strengths and shortcomings. From this analysis, potential improvements to the hoard are considered, implemented, and their relative benefits measured. Changes include the tracking of page modification, pre-writing of pages, use of a write-through policy, pre- and partial-fetching of pages, and alternative replacement algorithms. Results show that simple and speculative methods are often the most beneficial, and that performance varies greatly depending on the memory access patterns of a particular program. It was found that programs with high locality of access will perform better when using the hoard, in some cases exceeding the performance of the same program running on the Power Processor Element of the Cell BE. For programs with lower locality of reference, performance of the hoard and SDK cache are within a few percent of one another. An additional design goal for the hoard is to make the access and management of data outside of the SPE's local store as transparent as possible to the programmer. Not implemented as part of a particular compiler, the hoard is a compile- and run-time library that makes use of C++ language features to provide a natural pointer interface, requiring a minimal amount of changes to existing programs. Careful implementation of the interface ensures that program semantics are well preserved and accidental misuse is discouraged, while taking advantage of the features of the Cell BE to provide high-speed lookup. The result is a tool that facilitates the reuse of a broad range of existing code-bases on the SPE.
Spheromak formation and sustainment by tangential boundary flows
Creators: name: García-Martínez, Pablo Luis
name: Farengo, Ricardo
Publisher: name: arXiv
Year: 2009
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The nonlinear, resistive, 3D magnetohydrodynamic equations are solved numerically to demonstrate the possibility of forming and sustaining a spheromak by forcing tangential flows at the plasma boundary. The method can by explained in terms of helicity injection and differs from other helicity injection methods employed in the past. Several features which were also observed in previous dc helicity injection experiments are identified and discussed.
description: 4 pages, 5 figures
The [O II] lambda 3727 Luminosity Function at z ~ 1
Creators: name: Zhu, Guangtun
name: Moustakas, John
name: Blanton, Michael R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We measure the evolution of the [OII]lambda 3727 luminosity function at 0.75~2.5 between z ~ 1.35 and z ~ 0.84. In the limit of no number-density evolution, the characteristic [OII] luminosity, L^*_[OII], defined as the luminosity where the space density equals 10^{-3.5} dex^{-1} Mpc^{-3}, declines by a factor of ~1.8 over the same redshift interval. Assuming that L_[OII] is proportional to the star-formation rate (SFR), and negligible change in the typical dust attenuation in galaxies at fixed [OII] luminosity, the measured decline in L^*_[OII] implies a ~25% per Gyr decrease in the amount of star formation in galaxies during this epoch. Adopting a faint-end power-law slope of -1.3\pm0.2, we derive the comoving SFR density in four redshift bins centered around z~1 by integrating the observed [OII] luminosity function using a local, empirical calibration between L_[OII] and SFR, which statistically accounts for variations in dust attenuation and metallicity among galaxies. We find that our estimate of the SFR density at z~1 is consistent with previous measurements based on a variety of independent SFR indicators.
description: 10 pages, 6 figures, 2 tables, resubmitted to ApJ, in emulateapj style. Comparison with narrow-band observations added. Wavelength coverage included into complete function, little effects. The data is available on http://bias.cosmo.fas.nyu.edu/galevolution/
Library Research for Critical Minerals, Conflict Minerals, and Rare Earths
Creators: name: Wild, Emily C.
Publisher: name: Zenodo
Year: 2021
Subjects: Minerals
Critical Minerals
Conflict Minerals
Rare Earth Elements
Library Research

description: Princeton University Library’s chemistry and geosciences collections support library users interested in minerals research associated with the Department of Chemistry, Department of Geosciences, and the High Meadows Environmental Institute (HMEI). Prior to joining the Princeton University Library in 2018, Emily C. Wild worked for the U.S. Geological Survey (USGS) for about 23 years as a hydrologist and librarian (physical scientist). From 2008 to 2018, Emily was an embedded librarian within the USGS Mineral Resources Program in Denver, Colorado, where she helped mineral research chemists and geologists in the USGS, international governments, and mining companies worldwide find and use mineral research publications, datasets, laboratory methods, and rock cores. This webinar provides an overview of print and digital resources available for Earth’s mineral resources. Viewers will learn the differences (and similarities) of critical minerals, conflict minerals, rare earths, and other mineral terminologies used around the world in the contexts of sustainability and economic growth. Research sources related to environmental considerations of mineral extractions, uses, and wastes are also included.
Chebyshev polynomials and Fourier transform of SU(2) irreducible representation character as spin-tomographic star-product kernel
Creators: name: Filippov, S. N.
name: Man'ko, V. I.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Spin-tomographic symbols of qudit states and spin observables are studied. Spin observables are associated with the functions on a manifold whose points are labelled by spin projections and 2-sphere coordinates. The star-product kernel for such functions is obtained in explicit form and connected with Fourier transform of characters of SU(2) irreducible representation. The kernels are shown to be in close relation to the Chebyshev polynomials. Using specific properties of these polynomials, we establish the recurrence relation between kernels for different spins. Employing the explicit form of the star-product kernel, a sum rule for Clebsch-Gordan and Racah coefficients is derived. Explicit formulas are obtained for the dual tomographic star-product kernel as well as for intertwining kernels which relate spin-tomographic symbols and dual tomographic symbols.
description: 18 pages, 2 figures, LaTeX file, to appear in Journal of Russian Laser Research
Ceraphronidae Haliday 1833
Creators: name: Salden, Tobias
name: Peters, Ralph S.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ceraphronidae

description: Key to genera of male Ceraphronidae from the Afrotropical mainland (modified from Dessart & Cancemi 1987)
1. Mesosoma laterally compressed (higher than wide); flagellomeres cylindric or trapezoidal with erect and/or sickle-shaped sensillae (longer and/or shorter than width of flagellomeres)......................... 2
 – Mesosoma not laterally compressed (often wider than high); flagellomeres cylindric with sickle-shaped sensillae (rarely longer than width of flagellomeres) (Dessart & Cancemi 1987: e.g., 363, figs 104–111)................................................................................................. Ceraphron Jurine, 1807
2. Head not dorsoventrally flattened..................................................................................................... 3
 – Head dorsoventrally flattened and distinctly wider than laterally compressed meso- and metasoma (Dessart & Cancemi 1987: 347, figs 31–32).................................................. Synarsis Förster, 1878
3. Head without modified vertex and elongated mandibles.................................................................. 4
 – Head with elongated, slightly flattened and medially notched vertex; elongated and thin mandibles (Dessart & Cancemi 1987: 348, figs 35–39)....................... Gnathoceraphron Dessart & Bin, 1980
4. Head not enlarged and not subdivided by distinct carinae into concave compartments.................. 5
 – Head enlarged with subdivided concave preoccipital and frontal compartments, subdivision by distinct carinae; elongated mandibles (Dessart & Cancemi 1987: 348, figs 40–42).... Retasus Dessart, 1984
 5. Anterior third of metasoma narrowed, rest of metasoma distinctly convex ventrally; flagellomeres cylindric with sickle-shaped sensillae shorter than width of flagellomeres (Dessart & Cancemi 1987: 350, fig. 49; Fig. 92D).......................................................................... Cyoceraphron Dessart, 1975
 – Metasoma without characteristic profile; flagellomeres trapezoidal (rarely cylindric) with erect and/ or sickle-shaped sensillae mostly longer than width of flagellomeres (Dessart & Cancemi 1987: 351, figs 52–53; Figs 28D, 30D)................................................................ Aphanogmus Thomson, 1858
description: Published as part of Salden, Tobias & Peters, Ralph S., 2023, Afrotropical Ceraphronoidea (Insecta: Hymenoptera) put back on the map with the description of 88 new species, pp. 1-386 in European Journal of Taxonomy 884 (1) on page 11, DOI: 10.5852/ejt.2023.884.2181, http://zenodo.org/record/8177941
Integrating out the Dirac sea in the Walecka model
Creators: name: Karbstein, Felix
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We derive a purely fermionic no-sea effective theory, featuring positive-energy states only for the Walecka model. In contrast to the so-called mean-field theory approach with the no-sea approximation, where the Dirac sea is simply omitted from the outset, we turn to the relativistic Hartree approximation and explicitly construct a no-sea effective theory from the underlying quantum field theory. Several results obtained within these two approaches are confronted with each other. This sheds new light on the reliability of the mean-field theory with the no-sea approximation as well as the role of the Dirac sea. Restricting to 1+1 dimensions, we obtain new analytical insights into nonuniform nuclear matter.
description: 15 pages, 8 figures, several points clarified, Fig.7 replaced, references added