cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Confluence of geodesic paths and separating loops in large planar quadrangulations
Creators: name: Bouttier, J.
name: Guitter, E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider planar quadrangulations with three marked vertices and discuss the geometry of triangles made of three geodesic paths joining them. We also study the geometry of minimal separating loops, i.e. paths of minimal length among all closed paths passing by one of the three vertices and separating the two others in the quadrangulation. We concentrate on the universal scaling limit of large quadrangulations, also known as the Brownian map, where pairs of geodesic paths or minimal separating loops have common parts of non-zero macroscopic length. This is the phenomenon of confluence, which distinguishes the geometry of random quadrangulations from that of smooth surfaces. We characterize the universal probability distribution for the lengths of these common parts.
description: 48 pages, 33 color figures. Final version, with one concluding paragraph and one reference added, and several other small corrections
Ultracold Gases of Ytterbium: Ferromagnetism and Mott States in an SU(6) Fermi System
Creators: name: Cazalilla, M. A.
name: Ho, A. F.
name: Ueda, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: It is argued that ultracold quantum degenerate gas of ytterbium $^{173}$Yb atoms having nuclear spin $I = 5/2$ exhibits an enlarged SU$(6)$ symmetry. Within the Landau Fermi liquid theory, stability criteria against Fermi liquid (Pomeranchuk) instabilities in the spin channel are considered. Focusing on the SU$(n > 2)$ generalizations of ferromagnetism, it is shown within mean-field theory that the transition from the paramagnet to the itinerant ferromagnet is generically first order. On symmetry grounds, general SU$(n)$ itinerant ferromagnetic ground states and their topological excitations are also discussed. These SU$(n > 2)$ ferromagnets can become stable by increasing the scattering length using optical methods or in an optical lattice. However, in an optical lattice at current experimental temperatures, Mott states with different filling are expected to coexist in the same trap, as obtained from a calculation based on the SU$(6)$ Hubbard model.
description: 4+ pages, 1 figure; v2: Improved discussion of the SU(6) symmetry-breaking patterns; v3: added further discussion on the order of the transition. Added References
Reducing the environmental impact of seacage fish farming through cultivation of seaweed.
Creators: name: Sanderson, JC
Publisher: name: University Of Tasmania
Year: 2023

description: Cultivation of Laminaria saccharina (Linnaeus) Lamouroux and Palmaria palmata (Linnaeus) Kuntze was trialled at three fish farm sites in north-west Scotland. Results show that seasonal yields of L. saccharina were enhanced by 50 % and P. palmata by 63 % when cultured adjacent to fish farm cages compared to environmentally similar sites away from the farms. Yields of P. palmata were further enhanced under conditions of optimal water movement. Ammonium concentrations in the seawater 0 to 50m away from the fish cages were found to be 2 - 3 ˜í¬¿M greater than ambient. Enhanced concentrations of ammonium could be detected 200 to 300 m from the cages although the distribution is heavilyinfluenced by local hydrography. Nitrogen content of L. saccharina and P. palmata cultured adjacent to the salmon cages in summer was higher than in seaweeds cultured at reference sites away from fish cages. Stable nitrogen isotope analysis indicates that the nitrogen in seaweeds grown next to salmon cages is derived from the fish farm and farm derived nitrogen is likely to be widely dispersed in the lochs where cages are situated. A preliminary economic analysis showed that growing seaweeds commercially, in particular P. palmata, may be at worst cost neutral, with profitability increasing as a result of enhanced production through increased nutrient availability adjacent to fish farms. A one hectare seaweed farm producing 600 tonnes wet weight over two years (300 tonnes per year) of P. palmata could potentially absorb up to 30 % of nutrients generated from a 500 tonnes salmon production unit. As farm origin nitrogen is evident in biota at distances of up to one kilometre away from the cages, cultured macroalgae would not have to be sited close to cages to result in net nitrogen removal facilitating the siting of algal farms in areas more suited for individual species requirements while still maintaining bioremediation benefits.
Effective Parasite Control For Cow-Calf Programs
Creators: name: Corwin, Robert M.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: Parasite control is necessary for optimal cow-calf performance. By deworming, nematode parasites are reduced in numbers perhaps by 95-99% with use of an effective anthelmintic drug per treated cow or calf. In mother cows, this should maximize reproductive potential, milk production and desirable weight maintenance. Treatment of cows before being moved to a "rested" pasture will reduce contamination and transmission to parasite-naive calves. Treatment of calves at a later time in the grazing period will improve growth performance. Deworming should be an integral part of the overall herd health program. Too often, parasite control is eliminated from a program or not used. Yet subclinical parasitism has been shown to depress performance when not negated by effective anthelmintics and appropriate timing of their administration. When other factors such as nutrition, weather conditions (temperature, precipitation) and forage are in a steady state, the benefits of an effective anthelmintic are especially evident.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 2
Mid-Cycle Changes in Eta Carinae
Creators: name: Martin, John C.
name: Davidson, Kris
name: Humphreys, Roberta M.
name: Mehner, Andrea
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In late 2006, ground-based photometry of $η$ Car plus the Homunculus showed an unexpected decrease in its integrated apparent brightness, an apparent reversal of its long-term brightening. Subsequent HST/WFPC2 photometry of the central star in the near-UV showed that this was not a simple reversal. This multi-wavelength photometry did not support increased extinction by dust as the explanation for the decrease in brightness. A spectrum obtained with GMOS on the Gemini-South telescope, revealed subtle changes mid-way in $η$ Car's 5.5 yr spectroscopic cycle 0when compared with HST/STIS spectra at the same phase in the cycle. At mid-cycle the secondary star is 20--30 AU from the primary. We suggest that the spectroscopic changes are consistent with fluctuations in the density and velocity of the primary star's wind, unrelated to the 5.5 yr cycle but possibly related to its latitude-dependent morphology. We also discuss subtle effects that must be taken into account when comparing ground-based and HST/STIS spectra.
description: 34 pages, 9 Figures
Some effects of slashburning clearcutting and skidroads on the physical-hydrologic properties of coarse glacial soils in coastal British Columbia
Creators: name: Willington, R. P.
Publisher: name: University of British Columbia
Year: 2011

description: This study was initiated to determine the impact of clear-cutting, slashburning and skidroads on deep (>3 feet) coarse glacial soils at low elevations (<1000 ft. above sea level) of coastal British Columbia. Infiltration capacity, as measured with double-ring, constant-head infiltrometers, was the main measure of physical-hydrologic soil condition. The relationships between infiltration capacity and soil variables, including aeration porosity, total porosity, bulk density, texture, organic matter content and antecedent soil water content, were examined. The average infiltration rates of the undisturbed, forested areas were 17.92 inches/hour on well-drained acid brown wooded soil and 25.99 inches/hour on well-drained degraded acid brown wooded soil. Skidroads caused drastic reductions in infiltration. Average infiltration over a three hour period was 3.66 inches/hour on well-drained acid brown wooded soil three years after moderate skid-road use, 12.36 inches/hour on well drained degraded acid brown wooded soil three years after light skidroad use and 5.33 inches/ hour on moderately well-drained orthic podsol soil ten years after heavy skidroad use. Slashburning significantly reduced infiltration, although not to the levels of skidroads. Two years after burning, average infiltration over a three hour period was 13.42 inches/hour on well- drained acid brown uooded soil and 17.87 inches/hour on well-drained degraded acid brown wooded. Clearcutting did not significantly alter infiltration. Average infiltration over a three hour period was 2D.51 inches/hour on well-drained degraded acid brown wooded soil and 20.17 inches/hour on moderately well-drained orthic podsol soil. Some of the variations in infiltration by treatment and soil type are explained with the aid of multiple regression techniques.
Nutritional Factors Affecting Reproduction and Practical Nutrition For Beef Cattle Ranchers
Creators: name: Corah, Larry R.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: Numerous factors will influence the reproductive efficiency of a commercial cow herd, but nutrition is one of the most important. Reproductive efficiency is more than just the percent of cows pregnant. It includes: 1. Percent cows and heifers bred early in the breeding season 2. Percent pregnancy 3. Percent cows weaning a calf 4. Percent beef females calving unassisted Many factors influence each of these four factors, but nutrition will have a major effect on each of these items.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 2
Novel Concepts of Mastitis Control
Creators: name: Nickerson, Stephen C.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: Implementation of mastitis control measures based on proper milking practices and hygiene, reducing exposure to environmental pathogens, and traditional dry cow antibiotic therapy have lowered the prevalence of this disease in dairy cows over the past 25 years. But 30 to 40% of dairy cattle remain infected, and in order to further reduce incidence of infection dairymen may need to include more novel approaches to mastitis control. The purpose of this paper is to present a compilation of the more recent novel developments in mastitis control, and how this new knowledge may be implemented in the future by practitioners and dairymen to control this disease.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 2
Do We Need Postpartum Fertility Exams as Part of a Reproductive Herd Health Program
Creators: name: Ferry, John W.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: Bovine practitioners serving dairy clients traditionally demonstrate sincere concern for the financial well-being of their producers. Recognizing poor reproductive performance as a leading cause of financial loss for dairies, most veterinarians offer reproductive herd health services to their clients. These services traditionally incorporate rectal palpation of cows after calving, before breeding, and for pregnancy diagnosis. Postpartum exams identify cows requiring treatment for metritis. Prebreeding exams screen for cows requiring further treatment prior to breeding, and provide estimates of stage of estrous cycle. Pregnancy diagnoses identify open cows needing to be rebred.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 2
Bidirectional Associations between Fatty Pancreas and Nonalcoholic Fatty Liver Disease, A Systematic Review and Meta-analysis
Creators: name: Wongtrakul, Wasit
name: Nonthalee Pausawadi
name: Charatcharoenwitthaya, Phunchai
name: Suvijak Untaaveesup
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Medicine and Health Sciences

description: Objective: Due to shared vicious cycles of insulin resistance between nonalcoholic fatty liver disease (NAFLD) and fatty pancreas, several studies reported associations between NAFLD and fatty pancreas. The objectives were to not only comprehensively assess the bidirectional association between fatty pancreas and NAFLD but also to evaluate the effects of fatty pancreas on disease severity of NAFLD and vice versa. Methods: We performed systematic search EMBASE and MEDLINE databases from inception to August 2022 for observational studies assessing association between NAFLD and fatty pancreas and effects on disease severity of these two entities. A meta-analysis with random-effects model was conducted to estimate the pooled odds ratio (OR) with a 95% confidence interval (CI). The quality of the studies was evaluated using the Newcastle-Ottawa Scale.
The Latest Thinking on Dry Cow Management
Creators: name: Sniffen, C. J.
name: Van Saun, R. J.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: We continue to look for methods to increase productivity and hopefully, profitability. We place a lot of emphasis on feeding various products such as fat, bypass protein and niacin to increase milk production. Rarely do we put any emphasis on the profitability of the total herd. We do not consider the impact of metabolic or reproductive problems on total yield and profitability; this only becomes important when it becomes extreme. We need to look carefully at the hidden costs of subclinical metabolic and reproductive problems. We are sure that you have seen the sporadic milk fever, DA, ketosis, off feed, cow not coming into heat, metritis, cow not settling, and cow with off cycles. The use of good record analysis systems will allow you to see that, combined, these become a significant part of the costs of your client's operation. If you calculate the lost milk it will be even more. Our challenge is to develop strategies to minimize the occurrence of these problems in the herd.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 2
New charged Higgs effects on $Γ_{K_{e2}}/Γ_{K_{μ2}}$, $f_{D_s}$ and ${\cal B}(B^+\to τ^+ ν)$ in the Two-Higgs-Doublet model
Creators: name: Ahn, Y. H.
name: Chen, Chuan-Hung
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A new scheme for Yukawa matrices is proposed for free of flavor changing neutral currents (FCNCs) at tree level in general two-Higgs-doublet model (THDM) without imposing symmetry. We find that the new type couplings of charged Higgs to fermions not only depend on the flavors, but also can be ascribed by new CP violating phases. Unlike conventional THDM, the resulted new charged Higgs effects could have the specialties: (a) the influence on $Γ(K^\pm_{e 2})/Γ(K^\pm_{μ2})$ cannot be eliminated, (b) the decay constant of $D_s$ could be enhanced, and (c) enhancement of branching ratio for $B^+\to τ^+ ν$ could be achieved.
description: 13 pages, 5 figures, references added, typos corrected, constraints from R_\pi and B\to D \tau \bar \nu included, final version to appear in PLB
Some of the Difficult Aspects of Getting Into Production Medicine
Creators: name: Johnson, Andrew P.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: Production medicine is the newest kid on the block and by all indications is the future of veterinary medicine. This challenge has frightened many veterinarians and have made their futures unclear. I have found production medicine to be one of the most rewarding programs I have ever offered to my clients and is now the backbone of a successful practice. I have been asked today to discuss the difficulties that went into making a production medicine program work and I hope to share these with you.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 2
A geometric perspective on singularity resolution and uniqueness in loop quantum cosmology
Creators: name: Corichi, Alejandro
name: Singh, Parampreet
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We re-examine the issue of singularity resolution in homogeneous loop quantum cosmology from the perspective of geometrical entities such as expansion rate and the shear scalar. These quantities are very reliable measures of the properties of spacetime and can be defined not only at the classical and effective level, but also at an operator level in the quantum theory. From their behavior in the effective constraint surface and in the effective loop quantum spacetime, we show that one can severely restrict the ambiguities in regularization of the quantum constraint and rule out unphysical choices. We analyze this in the flat isotropic model and the Bianchi-I spacetimes. In the former case we show that the expansion rate is absolutely bounded only for the so called improved quantization, a result which synergizes with uniqueness of this quantization as proved earlier. Surprisingly, for the Bianchi-I spacetime, we show that out of the available choices, the expansion rate and shear are bounded for only one regularization of the quantum constraint. It turns out that only for this choice, the theory exhibits quantum gravity corrections at a unique scale, and is physically viable.
description: 17 pages, no figures. Typos corrected. Minor changes. Version to be published in PRD
Application of Dairy Production Medicine in Practice
Creators: name: DeJong, Gale A.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: Definition: To assist management to develop, implement, evaluate and modify programs to maintain health and optimize production of the dairy unit.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 2
Future Directions and Projections of Manpower Needs in Dairy Practice
Creators: name: Sterner, Keith E.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: The future of dairy practice is a bright one, however it will have a significantly different emphasis than it currently does. There will always be a place for practitioners that are willing to give value for service. Dairy practices will continue to need graduates that are willing to work. By its very nature, our work is reflective of the industry we serve. As a rule, we will find ourselves working longer hours when compared to those in other discipline areas of veterinary medicine. It has been my observation that all of the successful practitioners that I know in dairy practice work very long hours, mirroring the labor of the clients they serve. With this as a given, then what directions will practitioners of the future be taking?
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 2
A Pieri rule for skew shapes
Creators: name: Assaf, Sami
name: McNamara, Peter R. W.
name: Lam, Thomas
Publisher: name: arXiv
Year: 2009
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05E05 (Primary) 05E10, 20C30 (Secondary)

description: The Pieri rule expresses the product of a Schur function and a single row Schur function in terms of Schur functions. We extend the classical Pieri rule by expressing the product of a skew Schur function and a single row Schur function in terms of skew Schur functions. Like the classical rule, our rule involves simple additions of boxes to the original skew shape. Our proof is purely combinatorial and extends the combinatorial proof of the classical case.
description: 19 pages, 2 figures. Main body is by Assaf and McNamara, appendix is by Lam. Updated to reflect proof of Conjecture 6.1 by Lam, Lauve and Sottile in arXiv:0908.3714. Final version, to appear in Journal of Combinatorial Theory (Series A)
The Development of Continuing Education Opportunities For Veterinarians in Dairy Health Management
Creators: name: Leslie, Ken
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: Historically, regional and national veterinary associations have served a much needed role in the continuing education of the profession. This was done using focused one-topic seminars, as well as presentations covering a wide range of general topics. At species specialty group meetings, such as the American Association of Bovine Practitioners (AABP), pre-convention workshops from one to three days in length have been used to cover a broad range of important dairy health management topics. These seminars have provided the desired depth and intensity of subject coverage. However, with such meetings held only once per year, it has been difficult for an individual practitioner to develop the continuity of educational exposure necessary to build a complete slate of seminars (7). These continuing education programs have not offered a planned approach for the progression of courses. In addition, there is no accepted way to assess competency, nor respond to the on-going individual needs of the practitioners enroled. It would be difficult to document a significant change in overall dairy health management programs implemented by the majority of participating practitioners.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 2
Dynamical black holes and expanding plasmas
Creators: name: Figueras, Pau
name: Hubeny, Veronika E.
name: Rangamani, Mukund
name: Ross, Simon F.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We analyse the global structure of time-dependent geometries dual to expanding plasmas, considering two examples: the boost invariant Bjorken flow, and the conformal soliton flow. While the geometry dual to the Bjorken flow is constructed in a perturbation expansion at late proper time, the conformal soliton flow has an exact dual (which corresponds to a Poincare patch of Schwarzschild-AdS). In particular, we discuss the position and area of event and apparent horizons in the two geometries. The conformal soliton geometry offers a sharp distinction between event and apparent horizon; whereas the area of the event horizon diverges, that of the apparent horizon stays finite and constant. This suggests that the entropy of the corresponding CFT state is related to the apparent horizon rather than the event horizon.
description: 35 pages, 4 figures. v2: updated refs, added comments on quasilocal horizons
Thermal shot noise in top-gated single carbon nanotube field effect transistors
Creators: name: Chaste, J.
name: Pallecchi, E.
name: Morfin, P.
name: Feve, G.
name: Kontos, T.
name: Berroir, J. -M.
name: Hakonen, P.
name: Placais, B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The high-frequency transconductance and current noise of top-gated single carbon nanotube transistors have been measured and used to investigate hot electron effects in one-dimensional transistors. Results are in good agreement with a theory of 1-dimensional nano-transistor. In particular the prediction of a large transconductance correction to the Johnson-Nyquist thermal noise formula is confirmed experimentally. Experiment shows that nanotube transistors can be used as fast charge detectors for quantum coherent electronics with a resolution of $13\mathrm{μe/\sqrt{Hz}}$ in the 0.2-$0.8 \mathrm{GHz}$ band.
description: 3 pages, 4 figures
The space of subgroups of an abelian group
Creators: name: de Cornulier, Yves
name: Guyot, Luc
name: Pitsch, Wolfgang
Publisher: name: arXiv
Year: 2008
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20K27 (Primary), 20K15 (Secondary), 20K45, 06E15

description: We carry out the Cantor-Bendixson analysis of the space of all subgroups of any countable abelian group and we deduce a complete classification of such spaces up to homeomorphism.
description: 22 pages, no figure
Special Elective Rotations as a Means of Teaching Dairy Production Medicine Skills to Veterinary Students
Creators: name: Nordlund, Ken
name: Oetzel, Garrett
name: Dahl, John
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: A series of curriculum-driven clinical rotations in dairy production medicine has been developed at the University of Wisconsin for fourth year veterinary students. The courses emphasize dairy herd problem identification, mastitis problem solving, and applied dairy nutrition. Investigations of real dairy herds and problems provide case materials, and all courses make significant use of computers to analyze data. While participation in the rotations is elective, student enrollment has been substantial.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 2
Neutrino factory in stages: Low energy, high energy, off-axis
Creators: name: Tang, Jian
name: Winter, Walter
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We discuss neutrino oscillation physics with a neutrino factory in stages, including the possibility of upgrading the muon energy within the same program. We point out that a detector designed for the low energy neutrino factory may be used off-axis in a high energy neutrino factory beam. We include the re-optimization of the experiment depending on the value of theta_13 found. As upgrade options, we consider muon energy, additional baselines, a detector mass upgrade, an off-axis detector, and the platinum (muon to electron neutrino) channels. In addition, we test the impact of Daya Bay data on the optimization. We find that for large theta_13 (theta_13 discovered by the next generation of experiments), a low energy neutrino factory might be the most plausible minimal version to test the unknown parameters. However, if a higher muon energy is needed for new physics searches, a high energy version including an off-axis detector may be an interesting alternative. For small theta_13 (theta_13 not discovered by the next generation), a plausible program could start with a low energy neutrino factory, followed by energy upgrade, and then baseline or detector mass upgrade, depending on the outcome of the earlier phases.
description: 23 pages, 10 (color) figures. Minor clarifications and changes. Final version to appear in PRD
Whither and How Food Animal Medicine Approaches the Millennium
Creators: name: Dahl, John C.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: We have had the advantage of hearing from Dr. Ed Jesse, Dr. Robert Cropp and Mr. Richard Catta, so we are better informed than only a few hours ago on the various --- and complicated, aspects of milk pricing and marketing, the shifting demographics of the dairy industry, and the challenges facing dairy producers in the years ahead leading us to the millennium. Where will the food animal veterinary practitioner be in these coming years of change and challenge? What role will we play in helping to influence and shape the future of "our" dairy industry?
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 2
The past is not past. An interview with Joan Scott
Creators: name: Lopes Da Silva, Elisa
name: Scott, Joan
name: Cardão, Marcos
name: Peixe Dias, Bruno
Publisher: name: Práticas da História. Journal on Theory, Historiography and Uses of the Past
Year: 2022

description: As part of the special issue “The Polemics of History: Historiographical Debates and Public Life”, Elisa Lopes da Silva, Bruno Peixe Dias and Marcos Cardão interviewed Joan Wallach Scott. This American historian, professor emerita in the School of Social Science in the Institute of Advanced Studies in Princeton, became known for her work on gender history, engaging with post-structuralist theory, critical theory and psychoanalysis in historiography throughout her long academic career. This interview goes over Scott’s most emblematic works – including her recent work on the historiography and politics of memory and reparations for past aggravations –, assessing her earlier approaches and theses, through the lenses of today.
description: Práticas da História. Journal on Theory, Historiography and Uses of the Past, N.º 13 (2021)
Sensitive dependence of the motion of a legged robot on granular media
Creators: name: Li, Chen
name: Umbanhowar, Paul B.
name: Komsuoglu, Haldun
name: Koditschek, Daniel E.
name: Goldman, Daniel I.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Legged locomotion on flowing ground ({\em e.g.} granular media) is unlike locomotion on hard ground because feet experience both solid- and fluid-like forces during surface penetration. Recent bio-inspired legged robots display speed relative to body size on hard ground comparable to high performing organisms like cockroaches but suffer significant performance loss on flowing materials like sand. In laboratory experiments we study the performance (speed) of a small (2.3 kg) six-legged robot, SandBot, as it runs on a bed of granular media (1 mm poppy seeds). For an alternating tripod gait on the granular bed, standard gait control parameters achieve speeds at best two orders of magnitude smaller than the 2 body lengths/s ($\approx 60$ cm/s) for motion on hard ground. However, empirical adjustment of these control parameters away from the hard ground settings, restores good performance, yielding top speeds of 30 cm/s. Robot speed depends sensitively on the packing fraction $ϕ$ and the limb frequency $ω$, and a dramatic transition from rotary walking to slow swimming occurs when $ϕ$ becomes small enough and/or $ω$ large enough. We propose a kinematic model of the rotary walking mode based on generic features of penetration and slip of a curved limb in granular media. The model captures the dependence of robot speed on limb frequency and the transition between walking and swimming modes but highlights the need for a deeper understanding of the physics of granular media.
description: 4 figures
Large Hadron Collider probe of supersymmetric neutrinoless double beta decay mechanism
Creators: name: Allanach, B. C.
name: Kom, C. H.
name: Päs, H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In the minimal supersymmetric extension to the Standard Model, a non-zero lepton number violating coupling lambda'_111 predicts both neutrinoless double beta decay and resonant single slepton production at the LHC. We show that, in this case, if neutrinoless double beta decay is discovered in the next generation of experiments, there exist good prospects to observe single slepton production at the LHC. Neutrinoless double beta decay could otherwise result from a different source (such as a non-zero Majorana neutrino mass). Resonant single slepton production at the LHC can therefore discriminate between the lambda'_111 neutrinoless double beta decay mechanism and others.
description: 4 pages, 5 figures
Lucan's Bellum Ciuile and the Epic Genre
Creators: name: Alexis, F
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis demonstrates that Lucan's Bellum Ciuile takes epic to a new level, testing the generic paradigm, because Rome's civil war is a new subject for epic poetry. Lucan's epic presents civil war as the self-destruction of republican Rome, and close reading reveals the poem's intricate relationship with Homeric, Virgilian and Ovidian epic. We see that it changes and exaggerates characteristic tropes of the genre, by techniques such as delay, digression and frequent intervention by a complex narrator / persona, whose dramatic intrusions are like the speeches of characters in a tragedy. Such a politically risky subject, a type of impious war where Romans fight against and kill Romans, necessitates a long preamble and an insistent narrator's voice to justify poetic commemoration of such a crime. Unlike earlier epic where civil war is rare or treated only as an unfortunate but necessary prelude to peace, Lucan's poem is wholly taken up with this type of internecine war, the civil war between Caesar and Pompey. It also includes the civil wars of Marius and Sulla, introduced as a mise en abyme to intensify this subject, which suggests the predictability of recurring civil war and ideas of persistent political instability. Lucan's poem offers a detailed portrayal of the sea-battle at Massilia, and paradoxically, this inventive battle is the most 'epic' of its civil war battles, because many conventions of epic land battles are applied to this conflict on ships. Lucan's sea-battle re-presents and revitalises epic topoi by their new location, the sea. The episode concerning Hercules and Antaeus is also an example of a mise en abyme, reflecting the focus of Lucan's poem, the idea that civil war degrades both sides equally. It argues that the wrestling match between Hercules and Antaeus illustrates how participants in combat become similar and assume corresponding characteristics. This episode shows how the poem interacts with its own past battle narrative, relates to accounts of conflict in earlier epic, and reflects Roman gladiatorial spectacle. Lucan's paradoxical poem presents the battle at Pharsalus more symbolically than a typical epic battle narrative. Rhetorical praeteritio of the unspeakable wounds, weapons and forms of death in civil war draws a parallel between the human body and the state of Rome. Lucan's epic stretches the limits of the genre to overcome the difficulty of recounting Romans fighting against fellow Romans in civil war and demonstrates that there is more to this type of war than blood and guts and gruesome mutilation. Lucan's poem is evidence for how much has been and how much more can be articulated through the language and tropes of epic.
Economic Trends in Milk Pricing and Marketing
Creators: name: Cropp, Robert A.
name: Jesse, Edward V.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: This paper discusses several contemporary issues relating to the pricing and marketing of milk and dairy products. We begin at the consumer side of the marketing system, looking at trends in consumption of dairy products and their implications for dairy farmers. We then turn to farm milk pricing institutions, separately examining the current status and fate of the dairy price support program and federal milk marketing orders. Finally, we discuss an assortment of other issues that will influence farm milk prices during the next ten years
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 2
Miniaturization of the bioanalytical process
Creators: name: Hon, WB
Publisher: name: University Of Tasmania
Year: 2023

description: This work presents a systematic study of macroporous polymer monoliths and their use as stationary phases for microscale separation and as supports for immobilized trypsin digestion in pipette tip format for bioanalysis. Reversed-phase/cation-exchange mixed-mode polymer monolithic columns were prepared in situ within fused-silica capillaries via UV-initiated free-radical polymerization reaction. Control of the porous properties was achieved by varying the ratio of porogenic solvents (e.g. 1,4-butanediol and 1-propanol), the type of porogenic solvents used and the relative amounts of functional monomers and cross-linker. These columns were successfully used for the separation of a mixture of selected acidic drugs and beta-blockers, namely ketoprofen, ibuprofen, diclofenac, arterenol and propranolol. Monolithic columns with higher amounts of cross-linker were shown to give better repeatability. Furthermore, the separation mechanism of the investigated compounds was shown to be dual mode hydrophobic/ion-exchange interaction of the analytes with the hydrophobic and cation-exchange monolith. All these properties demonstrated the potential of these devices for solid-phase extraction and sample enrichment purposes in miniaturized formats. Based on the success of the previous work a trypsin-immobilized monolithic polymer with pipette-tip format was also investigated to explore the utility of using a tip-based protein digestion methodology in a bioanalytical setting. The excellent performance of immobilized enzymatic polypropylene pipette (IMEPP) tips was characterized using MicrOTOF-Q quadrupole time-of-flight MS and triple quadrupole LC-MS/MS systems. Very high sequence coverages of over 90% were achieved for the digestion of proteins ranging from low molecular weight to high molecular weight proteins with short contact times prior to MS analysis, which is comparable to 24 h digestion in solution. In addition, quantitative analysis of target proteins spiked in rat plasma was demonstrated for the first time with relatively good linearity over a wide range from 40-1000 ng/mL. The developed IMEPP tips exhibit high plasma loading capacity up to 40 uL of plasma that can be used to yield the highest efficiency for digestion. The IMEPP tip approach is thus rapid, reliable, and robust suggesting the potential of this approach to improve sample throughput for pharmaceutical and pharmacokinetic studies, leading to faster and safer discovery of new drugs to treat diseases. The trypsin immobilized polymer monolith was prepared in situ in syringe-compatible glass tube and evaluated for the digestion of protein. Preliminary results showed that the enzyme on the immobilized bed exhibited high proteolytic performance in this special format. The present glass tube bioreactor provides a promising platform for the full automation, on-line coupling to detection systems, short sample preparation times and high-throughput protein digestion.
Collecting Accounts
Creators: name: Gardner, Charles E.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: I have often heard that clients perceive us only as an expense when we work on sick animals but as an investment when we do production medicine or herd health work. This may be their perception, but the payback on a sick cow successfully treated is just as real and may even be realized faster. A successful operation for a displaced abomasum easily pays for itself within 1 month. Treating a sore foot gives a payback even faster. In emergency situations, such as dystocias and prolapses, we frequently save a cow's life and certainly save the client far more than our fee on a longterm basis. The bottom line is this: Our clients will not request any procedure unless they believe they will benefit by it. They should know the cost involved, and once they elect to go ahead with a procedure, they should be prepared to pay the bill. We, on the other hand, should not be ashamed to insist on payment on a timely basis.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 2
A Search for Oxygen in the Low-Density Lyman-alpha Forest Using the Sloan Digital Sky Survey
Creators: name: Pieri, Matthew M.
name: Frank, Stephan
name: Mathur, Smita
name: Weinberg, David H.
name: York, Donald G.
name: Oppenheimer, Benjamin D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use 2167 Sloan Digital Sky Survey (SDSS) quasar spectra to search for low-density oxygen in the Intergalactic Medium (IGM). Oxygen absorption is detected on a pixel-by-pixel basis by its correlation with Lyman-alpha forest absorption. We have developed a novel Locally Calibrated Pixel (LCP) search method that uses adjacent regions of the spectrum to calibrate interlopers and spectral artifacts, which would otherwise limit the measurement of OVI absorption. Despite the challenges presented by searching for weak OVI within the Lyman-alpha forest in spectra of moderate resolution and signal-to-noise, we find a highly significant detection of absorption by oxygen at 2.7 < z < 3.2 (the null hypothesis has a chi^2=80 for 9 data points). We interpret our results using synthetic spectra generated from a lognormal density field assuming a mixed quasar-galaxy photoionizing background (Haardt & Madau 2001) and that it dominates the ionization fraction of detected OVI. The LCP search data can be fit by a constant metallicity model with [O/H] = -2.15_(-0.09)^(+0.07), but also by models in which low-density regions are unenriched and higher density regions have a higher metallicity. The density-dependent enrichment model by Aguirre et al. (2008) is also an acceptable fit. All our successful models have similar mass-weighted oxygen abundance, corresponding to [_MW] = -2.45+-0.06. This result can be used to find the cosmic oxygen density in the Lyman-alpha forest, Omega_(Oxy, IGM) = 1.4(+-0.2)x10^(-6) = 3x10^(-4) Omega_b. This is the tightest constraint on the mass-weighted mean oxygen abundance and the cosmic oxygen density in the Lyman-alpha forest to date and indicates that it contains approximately 16% of metals produced by star formation (Bouché et al. 2008) up to z = 3.
description: 12 pages, 9 figures. Accepted by ApJ (minor changes)
Commission System
Creators: name: Johnson, Andrew P.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: The single biggest problem that faces most practices is how can each individual practitioner be compensated fairly. Obviously there is a great deal of difference between individual practitioners and this difference is often times the cause of internal practice problems. I have seen many practices try different approaches to this problem with varying results. There is no right way or wrong way to compensate practitioners, but it is important to choose a method that properly compensates all veterinarians in the practice.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 2
Some notes on the Kruskal - Szekeres completion
Creators: name: Lake, Kayll
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Kruskal - Szekeres (KS) completion of the Schwarzschild spacetime is open to Synge's methodological criticism that the KS procedure generates "good" coordinates from "bad". This is addressed here in two ways: First I generate the KS coordinates from Israel coordinates, which are also "good", and then I generate the KS coordinates directly from a streamlined integration of the Einstein equations.
description: One typo corrected
The development of a predictive test for mathematical success
Creators: name: Biggs, Marjorie Dudley
Publisher: name: University of British Columbia
Year: 2011

description: It was the purpose of this study (1) to review the literature in regards to the predictive validity of the available mathematical counselling tests; (2) to analyze the sequences of mathematics courses that have and would be undertaken by students; (3) to analyze the content of these mathematics courses for skills and concepts; and (h) to determine the content of the new mathematical counselling test. All versions of this counselling test consisted of two distinct sections. Part one contained problems whose solutions were dependent upon the student's comprehension of mathematical concepts and procedures to which he had been exposed. The second section was based on new material presented in a teach-test format. The test was administered, evaluated, revised and administered again several times. On a small sample of students the test scores from both sections had a correlation coefficient of just less than 0.70. The correlation coefficient between the two sections has been close to 0.50. Each section of this test is a good predictor of a student's grade in mathematics and measures different aspects needed for mathematical competence.
Integrated Climate-Change Assessment Scenarios and Carbon Dioxide Removal
Creators: name: Schweizer, Vanessa J.
name: Ebi, Kristie L.
name: Van Vuuren, Detlef P.
name: Jacoby, Henry D.
name: Riahi, Keywan
name: Strefler, Jessica
name: Takahashi, Kiyoshi
name: Van Ruijven, Bas J.
name: Weyant, John P.
Publisher: name: Amsterdam : Elsevier
Year: 2020
Subjects: subject: climate change
subject: socio-economic trends
subject: carbon dioxide (CO2) emissions
subject: 550

description: To halt climate change, we must reduce anthropogenic CO2 emissions to net zero. Any emission sources must be balanced by natural or technological carbon sinks that facilitate CO2 removal (CDR) from the atmosphere. The integrated scenario framework represents how socio-economic trends and social values interact with biophysical systems in exploring future climate change and decarbonization pathways. This primer introduces the integrated scenario framework and its application to explore options for offsetting emissions with CDR. © 2020 The AuthorsTo halt climate change this century, we must reduce carbon dioxide (CO2) emissions from human activities to net zero. Any emission sources, such as in the energy or land-use sectors, must be balanced by natural or technological carbon sinks that facilitate CO2 removal (CDR) from the atmosphere. Projections of demand for large-scale CDR are based on an integrated scenario framework for emission scenarios composed of emission profiles as well as alternative socio-economic development trends and social values consistent with them. The framework, however, was developed years before systematic reviews of CDR entered the literature. This primer provides an overview of the purposes of scenarios in climate-change research and how they are used. It also introduces the integrated scenario framework and why it came about. CDR studies using the scenario framework, as well as its limitations, are discussed. Possible future developments for the scenario framework are highlighted, especially in relation to CDR. © 2020 The Authors