cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
New derivation for the equations of motion for particles in electromagnetism
Creators: name: Gallo, Emanuel
name: Moreschi, Osvaldo M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present equations of motion for charged particles using balanced equations, and without introducing explicitly divergent quantities. This derivation contains as particular cases some well known equations of motion, as the Lorentz-Dirac equations. An study of our main equations in terms of order of the interaction with the external field conduces us to the Landau-Lifshitz equations. We find that the analysis in second order show a special behavior. We give an explicit presentation up to third order of our main equations, and expressions for the calculation of general orders.
description: 11 pages, 2 figures. Minor changes. Closer to published version
Controlling High Bandwidth Aggregates in the Network
Creators: name: Mahajan, Ratul
name: Bellovin, Steven Michael
name: Floyd, Sally
name: Ioannidis, John
name: Paxson, Vern
name: Shenker, Scott
Publisher: name: Columbia University
Year: 2002
Subjects: Computer science

description: The current Internet infrastructure has very few built-in protection mechanisms, and is therefore vulnerable to attacks and failures. In particular, recent events have illustrated the Internet's vulnerability to both denial of service (DoS) attacks and flash crowds in which one or more links in the network (or servers at the edge of the network) become severely congested. In both DoS attacks and flash crowds the congestion is due neither to a single flow, nor to a general increase in traffic, but to a well-defined subset of the traffic --- an aggregate. This paper proposes mechanisms for detecting and controlling such high bandwidth aggregates. Our design involves both a local mechanism for detecting and controlling an aggregate at a single router, and a cooperative pushback mechanism in which a router can ask upstream routers to control an aggregate. While certainly not a panacea, these mechanisms could provide some needed relief from flash crowds and flooding-style DoS attacks. The presentation in this paper is a first step towards a more rigorous evaluation of these mechanisms.
T-Cell Lymphoblastic Lymphoma Presenting as Bilateral Multinodular Breast Masses: A Case Report and Review of the Literature
Creators: name: Vakiani, Efsevia
name: Savage, David G.
name: Pile-Spellman, Eliza R.
name: El-Tamer, Mahmoud
name: Singh, Ila R.
name: Vundavalli, Murty V.
name: Alobeid, Bachir
name: Bhagat, Govind
Publisher: name: Columbia University
Year: 2005
Subjects: Lymphomas
Lymphomas--Treatment
T cells
Medicine
Cytogenetics

description: Non-Hodgkin lymphoma of T-cell lineage involving the breast is rare. We report on a 41-year-old woman with T-cell lymphoblastic lymphoma who presented with multiple bilateral breast masses. The patient was treated with intensive chemotherapy and med- iastinal and whole-brain irradiation. She remains in complete remission 24 months after diagnosis. The clinical, histologic, phenotypic, and cytogenetic features are described, with a review of the literature.
Two-particle quantum transmission
Creators: name: Folman, Ron
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Two-photon interference is a fundamental phenomenon in quantum mechanics and stands at the base of numerous experimental observations. Here another manifestation of this phenomenon is described, taking place at a Y junction. Specifically it is shown how the r^2+t^2 term which is behind previous observations of two-photon interference, may give rise to different states at a beam-splitter and different two-particle transmission coefficients at a Y junction. Different from previous descriptions of quantum transmission based on one-particle physics, the enhanced transmission described here is due to two-particle physics.
description: Invited paper to a SPIE conference (San-Diego, 15-16 of August, 2012)
Terahertz generation by optical rectification in uniaxial birefringent crystals
Creators: name: Rowley, J. D.
name: Wahlstrand, J. K.
name: Zawilski, K. T.
name: Schunemann, P. G.
name: Giles, N. C.
name: Bristow, A. D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The angular dependence of terahertz (THz) emission from birefringent crystals can differ significantly from that of cubic crystals. Here we consider optical rectification in uniaxial birefringent materials, such as chalcopyrite crystals. The analysis is verified in (110)-cut ZnGeP_2 and compared to (zincblende) GaP. Although the crystals share the same nonzero second-order tensor elements, the birefringence in chalcopyrite crystals cause the pump pulse polarization to evolve as it propagates through the crystal, resulting in a drastically different angular dependence in chalcopyrite crystals. The analysis is extended to {012}- and {114}-cut chalcopyrite crystals and predicts more efficient conversion for the {114} crystal cut over the {012}- and {110}-cuts.
description: 6 pages, 3 figure, online journal article
Remote sensing of vegetation fires and its contribution to a fire management information system
Creators: name: Flasse, Stéphane P.
name: Trigg, Simon N.
name: Ceccato, Pietro N.
name: Perryman, Anita H.
name: Hudak, Andrew T.
name: Thompson, Mark W.
name: Dramé, Moussa
name: Ntabeni, Tim
name: Frost, Philip E.
name: Landmann, Tobias
name: Le Roux, Johan L.
Publisher: name: Columbia University
Year: 2004
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: In the last decade, research has proven that remote sensing can provide very useful support to fire managers. This chapter provides an overview of the type of information remote sensing can provide to the fire community. It considers first fire management information needs in the context of fire management information system. An introduction to remote sensing then precedes the description of fire information obtainable from remote sensing data (such as vegetation status, active fire detection and burned areas assessment). Finally, operational examples in five African countries illustrate how the information can be used in practice.
The use of animals in science : trends and public attitudes
Creators: name: Ormandy, Elisabeth Helen
Publisher: name: University of British Columbia
Year: 2012

description: Given the recent shift towards democratization of science, public engagement (including exploration of public attitudes) on issues related to animal research is important. This thesis explores public attitudes to changing practices in the use of animals in research. Chapter 1 provides a critical review of the existing research related to this topic. Chapter 2 presents a bibliometric analysis of changing patterns in animal use, and documents the increasing use of genetically modified (GM) animals, especially mice and zebrafish. Chapters 3 and 4 describe two online engagement experiments investigating how acceptance of animal-based research is affected by genetic modification, regulation, invasiveness, and the species used. Chapter 3 shows that support for the use of pigs in research decreased when the research involved an invasive procedure or GM animals. Support for invasive research increased when regulation was in place, but regulation had little effect on acceptance of GM animal use. Chapter 4 shows that participants who were willing to support biomedical research on zebrafish were equally willing to support the same research on mice. Participants expressed low levels of support for research involving ethyl-N-nitrosourea (ENU) mutagenesis. Some participants expressed a preference for the use of GM animal models over ENU mutagenesis based on the belief that the former causes less pain, and improves accuracy and efficiency when creating the animal model. Chapter 5 describes an interview study that examined the views of researchers, research technicians, and members of public toward the creation and use of genetically modified animals in biomedical science. The creation and use of GM animals for biomedical research purposes was generally well supported provided that this was associated with tangible human health benefits. However, it was recognized there are obstacles to Three Rs (replacement, reduction, refinement) implementation, and that there should be more effort placed on engaging the public on animal research. Chapter 6 concludes with key policy recommendations: 1) improve scientific reporting, 2) improve data and animal sharing, 3) improve recording of national animal statistics, 4) improve animal welfare assessment, and 5) supplement the Three Rs.
Non-equilibrium states of a photon cavity pumped by an atomic beam
Creators: name: Nachtergaele, Bruno
name: Vershynina, Anna
name: Zagrebnov, Valentin A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 82C10 (Primary) 47D06, 46L60, 81S22 (Secondary)

description: We consider a beam of two-level randomly excited atoms that pass one-by-one through a one-mode cavity. We show that in the case of an ideal cavity, i.e. no leaking of photons from the cavity, the pumping by the beam leads to an unlimited increase in the photon number in the cavity. We derive an expression for the mean photon number for all times. Taking into account leaking of the cavity, we prove that the mean photon number in the cavity stabilizes in time. The limiting state of the cavity in this case exists and it is independent of the initial state. We calculate the characteristic functional of this non-quasi-free non-equilibrium state. We also calculate the energy flux in both the ideal and open cavity and the entropy production for the ideal cavity.
description: Corrected energy production calculations and made some changes to ease the reading
Anolis vittigerus Cope 1862
Creators: name: Restrepo, Adriana
name: Molina-Zuluaga, Claudia
name: Hurtado, Juan P.
name: Marín, Carlos M.
name: Daza, Juan M.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Dactyloidae
Anolis
Anolis vittigerus

description: Anolis vittigerus Cope, 1862 Anolis vittigerus Cope 1862: 179. Material examined. Table 2.
description: Published as part of Restrepo, Adriana, Molina-Zuluaga, Claudia, Hurtado, Juan P., Marín, Carlos M. & Daza, Juan M., 2017, Amphibians and reptiles from two localities in the northern Andes of Colombia, pp. 203-237 in Check List 13 (4) on page 218, DOI: 10.15560/13.4.203
description: {"references": ["Cope ED (1862) Catalogues of the reptiles obtained during the explo- rations of the Parana, Paraguay, Vermeio and Uraguay Rivers, by Capt. Thos. J. Page, U. S. N.; and of those procured by Lieut. N. Michler, U. S. Top. Eng., Commander of the expedition conducting the survey of the Atrato River. Proceedings of the Academy of Natural Sciences of Philadelphia 14: 346 - 359."]}
Silenced and stressed: impact of reporting workplace bullying and harassment for academic staff in Irish higher education
Creators: name: Reeves, Levina
name: Whelan, Niamh
name: Campbell, Mark
name: Hayes, Grainne
Publisher: name: University of Limerick
Year: 2025
Subjects: classificationCode: 4207
subject: Sports science and exercise

description: Purpose – Workplace well-being is an increasingly critical issue influenced by systemic factors, particularly in academic settings. This study investigated workplace bullying (WPB) and harassment in higher education institutions in Ireland, drawing upon the Ottawa Charter and conservation of resources theory to contextualise the impacts on employee well-being. Design/methodology/approach – Twenty-five participants responded to a survey that first measured occurrences and impact of WPB. The survey was followed by open-ended questioning eliciting narratives around the experience of reporting WPB to reveal organisational responses and subsequent impacts of reporting WPB. Findings – The prevalence of barriers to reporting showed that out of 25 participants, 18 experienced barriers to reporting WPB. Seventeen participants documented the negative impacts of barriers to reporting WPB. Lack of human resource management (HRM) implementation incurred organisational consequences, such as increased staff turnover and a negative impact on institutional culture. Research limitations/implications – The online survey was conducted during the summer annual leave period, which impeded distribution. The mixed-method approach did not capture complete narratives from some participants in response to the open-ended question. Furthermore, all disclosures were self-reported, making it challenging to confirm that the reported impacts were directly linked to workplace experiences. Practical implications – The findings of this research highlight the need for more effective HRM practices, leadership training and accountability to manage WPB reporting processes to reduce impact and inform prevention. Social implications – The challenges of reporting WPB have broader social ramifications, affecting the overall well-being of academic staff and institutional cultures. Originality/value – This approach moved away from WPB as the measured impact, focusing on the subsequent impacts of voicing concern.
The BFKL Pomeron calculus: summing enhanced diagrams
Creators: name: Levin, E.
name: Miller, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The goal of this paper is to sum over a class of enhanced diagrams, and derive a new Pomeron Green function. It is found that this sum gives the Pomeron contribution to the scattering amplitude that decreases with energy. In other words, we found that the total cross section of two colourless dipoles of small but equal sizes, falls down at high energies.
description: 38pp, 13 figures in .eps
A complex speciation-richness relationship in a simple neutral model
Creators: name: Desjardins-Proulx, Philippe
name: Gravel, Dominique
Publisher: name: arXiv
Year: 2012
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Speciation is the "elephant in the room" of community ecology. As the ultimate source of biodiversity, its integration in ecology's theoretical corpus is necessary to understand community assembly. Yet, speciation is often completely ignored or stripped of its spatial dimension. Recent approaches based on network theory have allowed ecologists to effectively model complex landscapes. In this study, we use this framework to model allopatric and parapatric speciation in networks of communities and focus on the relationship between speciation, richness, and the spatial structure of communities. We find a strong opposition between speciation and local richness, with speciation being more common in isolated communities and local richness being higher in more connected communities. Unlike previous models, we also find a transition to a positive relationship between speciation and local richness when dispersal is low and the number of communities is small. Also, we use several measures of centrality to characterize the effect of network structure on diversity. The degree, the simplest measure of centrality, is found to be the best predictor of local richness and speciation, although it loses some of its predictive power as connectivity grows. Our framework shows how a simple neutral model can be combined with network theory to reveal complex relationships between speciation, richness, and the spatial organization of populations.
description: 9 pages, 5 figures, 1 table, 50 references
Implementing Pushback: Router-Based Defense Against DDoS Attacks
Creators: name: Ioannidis, John
name: Bellovin, Steven Michael
Publisher: name: Columbia University
Year: 2002
Subjects: Computer science

description: Pushback is a mechanism for defending against distributed denial-of-service (DDoS) attacks. DDoS attacks are treated as a congestion-control problem, but because most such congestion is caused by malicious hosts not obeying traditional end-to-end congestion control, the problem must be handled by the routers. Functionality is added to each router to detect and preferentially drop packets that probably belong to an attack. Upstream routers are also notified to drop such packets (hence the term Pushback) in order that the router's resources be used to route legitimate traffic. In this paper we present an architecture for Pushback, its implementation under FreeBSD, and suggestions for how such a system can be implemented in core routers.
Lecture: The Rule of Reason in the Post-Actavis World
Creators: name: Carrier, Michael A.
Publisher: name: Columbia University
Year: 2018
Subjects: subject: Law
subject: FOS: Law
subject: Antitrust law
subject: Drugs--Patents
subject: Jurisprudence

description: Though known more as U.S. President and Supreme Court Chief Justice, William Howard Taft played an important role in the development of antitrust law. As Sixth Circuit judge, his ruling in the Addyston Pipe case can be linked to modern antitrust law, including the Supreme Court’s 2013 decision in FTC v. Actavis on drug patent settlements. This essay draws lessons from Addyston Pipe for these settlements, explains how courts today apply the Rule of Reason, and explores the analysis of settlements after Actavis.
Clelia clelia clelia (Daudin 1803
Creators: name: Restrepo, Adriana
name: Molina-Zuluaga, Claudia
name: Hurtado, Juan P.
name: Marín, Carlos M.
name: Daza, Juan M.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Dipsadidae
Clelia
Clelia clelia

description: Clelia clelia (Daudin, 1803): Figure 12C Coluber clelia Daudin 1803: 330. Clelia clelia — Zaher 1996: 301.
description: Published as part of Restrepo, Adriana, Molina-Zuluaga, Claudia, Hurtado, Juan P., Marín, Carlos M. & Daza, Juan M., 2017, Amphibians and reptiles from two localities in the northern Andes of Colombia, pp. 203-237 in Check List 13 (4) on page 225, DOI: 10.15560/13.4.203
description: {"references": ["Daudin FM (1803) Histoire Naturelle Generale et Particuliere des Rep- tiles. Vol. 6. F. Dufart, Paris, 426 pp. https: // doi. org / 10.5962 / bhl. title. 60678", "Zaher H (1996) A new genus and species of pseudoboine snake, with a revision of the genus Clelia (Serpentes, Xenodontinae). Bolletino dei Musei Regionale Sciencia naturali di Torino 14: 289 - 337."]}
title: Spatio-temporal dynamics of Atlantic cod (Gadus morhua) in the Irish and Celtic Sea: results from a collaborative tagging programme
Creators: name: Bendall, Victoria
name: Cuaig, Macdara Ó
name: Schön, Pieter-Jan
name: Hetherington, Stuart
name: Armstrong, Mike
name: Graham, Norman
name: Righton, David
Publisher: name: ASC 2009 - Theme session J
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author.Spatio-temporal dynamics related to sub-structuring of Atlantic cod stocks may affect how the populations in different management areas respond to recovery measures. Using data from mark recovery and electronic tag studies, we test the assumption that there is an exchange of cod between two adjacent cod management areas, one in the Irish Sea (ICES Division VIIa) and the other in the western English Channel and Celtic Sea (ICES Divisions VIIe-k). We evaluate 1522 archived and current mark recovery data (1960’s- present day) to assess the seasonal changes in distribution of cod within ICES Divisions VIIa and VIIe-g. In addition, we report on the results of a collaborative electronic data storage tagging (DST) programme of cod in the Irish and Celtic Sea, spanning the years 1999 to 2009. During this time, 693 DSTs have been deployed on cod between 43cm and 110cm, and 54 of the tags have been returned yielding over 2700 days of data. We used a tidal geolocation model to determine the daily locations of each cod to reconstruct in detail the migrations of cod tagged with DSTs. The results are the first to describe fundamental features of cod spatial ecology in the Irish and Celtic Sea, such as the location of feeding and spawning grounds (and the migratory pathways between them), the seasonality of migration and habitat occupation and the potential impact upon sub-stock structure.
Expansion velocity of a one-dimensional, two-component Fermi gas during the sudden expansion in the ballistic regime
Creators: name: Langer, S.
name: Schuetz, M. J. A.
name: McCulloch, I. P.
name: Schollwock, U.
name: Heidrich-Meisner, F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We show that in the sudden expansion of a spin-balanced two-component Fermi gas into an empty optical lattice induced by releasing particles from a trap, over a wide parameter regime, the radius $R_n$ of the particle cloud grows linearly in time. This allow us to define the expansion velocity $V_{ex}$ from $R_n=V_{ex}t$. The goal of this work is to clarify the dependence of the expansion velocity on the initial conditions which we establish from time-dependent density matrix renormalization group simulations, both for a box trap and a harmonic trap. As a prominent result, the presence of a Mott-insulating region leaves clear fingerprints in the expansion velocity. Our predictions can be verified in experiments with ultra-cold atoms.
description: 8 pages 10 figures, version as published with minor stylistic changes
Improving Desert Locust Decision Support in Africa and Asia Using SMAP Soil Moisture Estimates
Creators: name: Bolten, John D.
name: Brown, Molly
name: Ceccato, Pietro N.
Publisher: name: Columbia University
Year: 2009
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: In the desert areas from northern Africa to East Asia, occasional rainfall in hyper-arid environments results in the development of vegetation that harbor destructive swarms of Desert Locusts (DL). The UN Food and Agriculture Organization (FAO) has developed a Decision Support System (DSS) for monitoring Desert Locust events based on remotely sensed precipitation and vegetation estimates. However, the precipitation data applied by the FAO DSS have been shown to have a low probability of detection in this area leading to high uncertainty in their DL forecasts. We demonstrate the correspondence of AMSR-E soil moisture anomalies with observed Desert Locust events in north Africa and southwest Asia. This relationship enables an improvement to the existing FAO DL Decision Support System through the addition of expected SMAP products which will provide similar soil moisture products to AMSR-E, but at higher spatial resolution. The SMAP rootzone soil moisture product (L4_SM) will be particularly useful in this regard.
Finite-size scaling and boundary effects in two-dimensional valence-bond-solids
Creators: name: Sandvik, Anders W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Various lattice geometries and boundaries are used to investigate valence-bond-solid (VBS) ordering in the ground state of an S=1/2 square-lattice quantum spin model---the J-Q model, in which 4- or 6-spin interactions Q are added to the Heisenberg exchange J. Ground state results for finite systems (with up to thousands of spins) are obtained using a projector QMC method. Great care has to be taken when extrapolating the order parameter to infinite size, in particular in cylinder geometry. Even though strong 2D VBS order exists and is established clearly with increasing system size on L*L lattices (or Lx* Ly lattices with a fixed Lx/Ly), only short-range VBS correlations are observed on long cylinders (when Lx -> infinity at fixed Ly). The correlation length increases with Ly, until long-range order sets in at a "critical" Ly. This width is large even when the 2D order is strong, e.g, for a system where the order parameter is 70% of the largest possible value, Ly=8 is required for ordering. Correlation functions for small L*L lattices can also be misleading. For a 20%-ordered system results for L up to 20 appear to extrapolate to a vanishing order parameter, while for larger L the behavior crosses over and extrapolates to a non-zero value (with exponentially small finite size corrections). The VBS order also exhibits interesting edge effects related to emergent U(1) symmetry, which, if not considered properly, can lead to wrong conclusions for the thermodynamic limit. The finite-size behavior for small L*L lattices and long cylinders is similar to that predicted for a Z2 spin liquid. The results raise concerns about recent works claiming Z2 spin liquid ground states in frustrated 2D systems, in particular, the Heisenberg model with nearest and next-nearest-neighbor couplings. VBS state in this system cannot be ruled out.
description: 26 pages, 28 figures. v2: final, published version
Commentary: “Applying the Rule of Reason in the Post-Actavis World”
Creators: name: Morgenstern, Saul P.
name: Pergament, Adam M.
Publisher: name: Columbia University
Year: 2018
Subjects: subject: Law
subject: FOS: Law
subject: Antitrust law
subject: Jurisprudence
subject: Patent suits

description: In FTC v. Actavis, 133 S. Ct. 2223 (2013), the Supreme Court held that in cases challenging alleged “reverse payment” settlements of patent litigation arising in the context of the Hatch-Waxman Act, the Rule of Reason applies—no per se rules, no quick look, no shortcuts. Actavis arose in the context of a motion to dismiss and explicitly left to the lower courts the task of structuring the Rule of Reason analysis. Following Actavis, how the lower courts should apply the Rule of Reason has been the subject of considerable debate. The FTC and private plaintiffs, as well as law professors aligned with their views, have attempted to find in Actavis justifications for injecting shortcuts and presumptions that would undermine the Court’s clear holdings. Those efforts have thus far been largely rejected in post-Actavis litigation. As we argue, courts should continue to reject such efforts—which rest on presumptions rather than proof—and preserve the integrity of the Rule of Reason.
Leptodeira septentrionalis Kennicott 1859
Creators: name: Restrepo, Adriana
name: Molina-Zuluaga, Claudia
name: Hurtado, Juan P.
name: Marín, Carlos M.
name: Daza, Juan M.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Dipsadidae
Leptodeira
Leptodeira septentrionalis

description: Leptodeira septentrionalis Kennicott, 1859: Figure 13A Leptodeira septentrionalis Kennicott in Baird 1859: 16. Material examined. Table 2.
description: Published as part of Restrepo, Adriana, Molina-Zuluaga, Claudia, Hurtado, Juan P., Marín, Carlos M. & Daza, Juan M., 2017, Amphibians and reptiles from two localities in the northern Andes of Colombia, pp. 203-237 in Check List 13 (4) on page 225, DOI: 10.15560/13.4.203
description: {"references": ["Baird SF (1859) Reptiles of the boundary. In: United States and Mexi- can Boundary Survey under the Order of Lieut. Col. W. H. Emory, Major First Cavalry, and United States Commissioner. 2, Rept, Pt 2. Department of the Interior, Washington DC, 35 pp."]}
Environmental Data and Surveillance
Creators: name: Ceccato, Pietro N.
name: Bell, Michael A.
name: Blumenthal, Martin Benno
name: Connor, Stephen J.
name: Omumbo, Judith A.
name: Thomson, Madeleine C.
name: Trzaska, Sylwia A.
Publisher: name: Columbia University
Year: 2007
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Remote sensing

description: An overview of the IRI Data Library.
Effective mass splitting of neutron and proton and isospin emission in heavy-ion collisions
Creators: name: Feng, Zhao-Qing
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Within the framework of an isospin and momentum dependent transport model, the emissions of isospin particles (nucleons and light clusters) squeezed out in heavy-ion collisions are investigated as probes of the poorly known symmetry energy at high baryon density. Two different mass splittings of neutrons and protons in nuclear medium as $m_{n}^{\ast}>m_{p}^{\ast}$ and $m_{n}^{\ast}
description: 16 pages, 7 figures
Non-Equilibrium Chemistry of Dynamically Evolving Prestellar Cores: I. Basic Magnetic and Non-Magnetic Models and Parameter Studies
Creators: name: Tassis, Konstantinos
name: Willacy, Karen
name: Yorke, Harold W.
name: Turner, Neal J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We combine dynamical and non-equilibrium chemical modeling of evolving prestellar molecular cloud cores, and explore the evolution of molecular abundances in the contracting core. We model both magnetic cores, with varying degrees of initial magnetic support, and non-magnetic cores, with varying collapse delay times. We explore, through a parameter study, the competing effects of various model parameters in the evolving molecular abundances, including the elemental C/O ratio, the temperature, and the cosmic-ray ionization rate. We find that different models show their largest quantitative differences at the center of the core, whereas the outer layers, which evolve slower, have abundances which are severely degenerate among different dynamical models. There is a large range of possible abundance values for different models at a fixed evolutionary stage (central density), which demonstrates the large potential of chemical differentiation in prestellar cores. However, degeneracies among different models, compounded with uncertainties induced by other model parameters, make it difficult to discriminate among dynamical models. To address these difficulties, we identify abundance ratios between particular molecules, the measurement of which would have maximal potential for discrimination among the different models examined here. In particular, we find that the ratios between NH3 and CO; NH2 and CO; NH3 and HCO+ are sensitive to the evolutionary timescale, and that the ratio between HCN and OH is sensitive to the C/O ratio. Finally, we demonstrate that measurements of the central deviation (central depletion or enhancement) of abundances of certain molecules are good indicators of the dynamics of the core.
description: 20 pages, 15 figures, accepted for publication in ApJ
WT1 mutations in T-ALL
Creators: name: Tosello, Valeria
name: Mansour, Marc R.
name: Barnes, Kelly
name: Paganin, Maddalena
name: Sulis, Maria-Luisa
name: Jenkinson, Sarah
name: Allen, Christopher G.
name: Gale, Rosemary E.
name: Linch, David C.
name: Palomero, Teresa
name: Real, Pedro
name: Vundavalli, Murty V.
name: Yao, Xiaopan
name: Richards, Susan M.
name: Goldstone, Anthony
name: Rowe, Jacob
name: Basso, Giuseppe
name: Wiernik, Peter H.
name: Paietta, Elisabeth
name: Pieters, Rob
name: Horstmann, Martin
name: Meijerink, Jules P. P.
name: Ferrando, Adolfo A.
Publisher: name: Columbia University
Year: 2009
Subjects: Lymphomas
Adult T-cell leukemia
T cells
Mutation (Biology)
Pathology

description: The molecular mechanisms involved in disease progression and relapse in T- cell acute lymphoblastic leukemia (T- ALL) are poorly understood. We used single nucleotide polymorphism array analysis to analyze paired diagnostic and relapsed T-ALL samples to identify recurrent genetic alterations in T-ALL. This analysis showed that diagnosis and relapsed cases have common ge- netic alterations, but also that relapsed samples frequently lose chromosomal markers present at diagnosis, suggest-ing that relapsed T-ALL emerges from an ancestral clone different from the major leukemic population at diagnosis. In addition, we identified deletions and associated mutations in the WT1 tumor suppressor gene in 2 of 9 samples. Subsequent analysis showed WT1 muta- tions in 28 of 211 (13.2%) of pediatric and 10 of 85 (11.7%) of adult T-ALL cases. WT1 mutations present in T-ALL are predominantly heterozygous frame- shift mutations resulting in truncation of the C-terminal zinc finger domains of this transcription factor. WT1 mutations are most prominently found in T-ALL cases with aberrant rearrangements of the oncogenic TLX1, TLX3, and HOXA transcription factor oncogenes. Sur- vival analysis demonstrated that WT1 mutations do not confer adverse progno- sis in pediatric and adult T-ALL. Overall, these results identify the presence of WT1 mutations as a recurrent genetic alteration in T-ALL.
Electrodynamic effect of anisotropic expansions in the Universe
Creators: name: Ciarcelluti, Paolo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the presence of anisotropic cosmic expansions at global or local scale the equations of electrodynamics in expanding space-time are modified and presented here. A new effect should arise in regions of local anisotropic expansion in a cosmologically isotropic background. These regions should naturally exist, being connected with scales decoupling from the Hubble flow. Possible observational consequences of this effect are suggested. In particular, I predict the appearance or variation of the polarization of electromagnetic radiation coming from or passing through these regions. This effect is observable and possibly already observed in the polarization of quasars.
description: 5 pages, no figures; typos corrected, reference added, matches the published version
Macroinvertebrados acuáticos como indicadores de la calidad del agua del Río Atoyac, Oaxaca
Creators: name: Molina-Gaytán, Gloria
name: Rös, Matthias
name: Astudillo, Manuel
Publisher: name: Zenodo
Year: 2018
Subjects: Biomonitoreo
Diversidad
Calidad ecológica del agua
Ríos urbanos

description: Resumen versión original

Los ríos urbanos en Latinoamérica sufren una alta contaminación de residuos orgánicos, entre otros. El Río Atoyac-Oaxaca cruza desde su nacimiento 38 municipios con zonas urbanas y áreas agrícolas. Análisis puntuales de variables físico-químicos han demostrado su alta contaminación. Sin embargo, este es el primer estudio sistemático de Macroinvertebrados Acuáticos (MA) y su uso como bioindicadores en el Río Atoyac.

Se determinó la calidad del agua mediante el índice Biological Monitoring Working Party (BMWP). Dado que no existe un índice calibrado para esta región, se tomó como referencia el BMWP de dos regiones de México.

Se muestrearon MA en 30 sitios, de 10 municipios, durante las temporadas seca y pluviosa de 2017, empleando un método multi-hábitat, y se midieron ocho variables físico-químicas in situ y de laboratorio.

Aunque en total se registraron 55 taxones, la calidad de 29 sitios mostró, durante ambas temporadas, agua de calidad mala (promedio de 23 puntos de BMWP), contaminada. Incluso, en algunos sitios la contaminación fue extrema, agudizándose ante la influencia de la zona urbana.

Solamente un sitio indicó una menor contaminación, escasa a regular en temporada de secas y, escasa a buena en temporada de lluvias. Aunque 4 sitios cercanos a los cruces con ríos tributarios presentaron una ligera mejoría, sólo 1 ascendió de calidad mala a escasa. Los análisis físico-químicos confirmaron esta contaminación extrema.

Los resultados demostraron que el río Atoyac se contamina prácticamente desde su nacimiento hasta el final de la subcuenca, y ni los ríos tributarios ni la temporada de lluvia logran aumentar la calidad del agua significativamente.

Se probó el funcionamiento general del BMWP en esta región, por lo que se propone calibrar el índice para Oaxaca. Asimismo, se muestra la necesidad de establecer un sistema de biomonitoreo continuo y la urgencia de definir estrategias de restauración del Atoyac.
description: Envío resumen y póster en versiones originales
Fermionic entanglement extinction in non-inertial frames
Creators: name: Montero, M.
name: Leon, J.
name: Martin-Martinez, E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study families of fermionic field states in non-inertial frames which show no entanglement survival in the infinite acceleration limit. We generalise some recent results where some particular examples of such states where found. We analyse the abundance and characteristics of the states showing this behaviour and discuss its relation with the statistics of the field. We also consider the phenomenon beyond the single mode approximation.
description: 6 pages, 4 figures, revtex4-1
title: A Needs Assessment for a Distance Education Baccalaureate Degree Completion Program for Associate Degree Level Dental Hygienist
Creators: name: Ellison, Joan Gugino
Publisher: name: Old Dominion University Libraries
Year: 1998

description: The purpose of this descriptive research was to determine the need for a distance education program for geographically dispersed dental hygienists to complete a baccalaureate degree program in dental hygiene. The sample consisted of randomly selected licensed dental hygienists in the Commonwealth of Virginia. A self-designed instrument, titled The Distance Education for a Dental Hygiene Degree Completion Program Questionnaire, was mailed to the study participants after establishing validity and reliability. The questionnaire asked participants to provide information concerning personal demographics, educational background, and interest in completing a dental hygiene baccalaureate degree via distance education. Frequencies, percentages, crosstabulations, chi-square test of association, in conjunction with analysis of residuals and lambda were used for data analysis.

Results indicated that 29.8% of Virginia dental hygienists surveyed are pursuing education beyond their associate degree or certificate in dental hygiene. Of the dental hygienists surveyed, 27.2% have taken a distance education course, either as continuing education or college credit courses. Dental hygienists were asked to rate the importance of various program design factors considered when making a decision to pursue a bachelor's of science degree in dental hygiene. Of these factors, those indicated as being .. very important'' to the majority of Virginia dental hygienists surveyed were: tuition costs, weekend/evening course availability, geographic location, the length of time to complete the program, part-time study availability and faculty/institution reputations. Study participants also rated as "'very important" the following personal reasons for seeking an advanced degree in dental hygiene: to increase knowledge and skill, to better serve patients, and personal satisfaction. Gaining entrance into graduate school was rated as being "not important" by the majority of study participants. The value of the baccalaureate degree in dental hygiene was determined by the factors and reasons rated by dental hygienists when making a decision to pursue an advanced degree. Based on the responses, many dental hygienists value such a degree and 72.4% expressed an interest in pursuing an advanced degree if courses were conveniently located and flexible to accommodate family and employment schedules. The implementation of a dental. hygiene degree completion program via distance education may provide opportunities for many dental hygienists in areas of Virginia that otherwise would not be available.
title: Task-Level Programming with Collision Avoidance for Autonomous Space Robots
Creators: name: Adolphs, Peter
name: Matthiesen, Jan
Publisher: name: IFAC - International Federation of Automatic Control
Year: 2023

description: The reasons for integrating collision avoiding path planning into a task-level programmable multi-sensor robot system are put forward. The underlying system architecture and the specific approaches for environment modelling, task planning and path planning are discussed. Task planning is performed using a rule based expert sytem and a frame representation of relevant environment data. Path planning is based on a configuration-space approach with a fast new algorithm for obstacle transformation. Results gained from experimental laboratory work are presented and show some advantages and problems of the entire system.
Motivations for Sustainability Reporting
Creators: name: Pires, Amélia Maria Martins
name: Rodrigues, Fernando José Peixinho Araújo
Publisher: name: International Journal of Business Innovation
Year: 2023

description: The disclosure of information within the scope of corporate sustainability is particularly directed towards companies of public interest, a reason that is particularly pointed out for the low adherence rate and for considering that reporting practices within this scope are mostly voluntary. On the other hand, there are also those who argue that larger companies and those operating in activity sectors that are more sensitive to environmental and social issues tend to show greater awareness and concern for future generations. It is within this scope that this research is developed, although particularly directed towards answering the following question: what leads companies to disclose in the scope of sustainability and how do they do it? To answer this question, the research comprises a literature review and a case study, developed in a company of the textile sector. It was possible to conclude that, globally, there is a greater tendency to disclose in companies that are bigger and/or belong to activity sectors that are more sensitive to social and environmental issues. The results also allow presenting the textile industry as a paradigmatic example around sustainable development and reinforce the thesis that the activity sector presents itself as a motivational element to disclose in this context, regardless of size.
description: International Journal of Business Innovation, Volume 2 Issue 2 (2023)
Climate of the Meningitis Belt
Creators: name: Trzaska, Sylwia A.
name: Ceccato, Pietro N.
name: Bell, Michael A.
name: Giannini, Alessandra
name: Goddard, Lisa M.
name: Mohammed, M. Ben
Publisher: name: Columbia University
Year: 2007
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Epidemiology

description: An overview of the connection between climate and meningitis in the West African Sahel.
Biomarkers of acute and chronic human heart allograft rejection
Creators: name: Lin, David Chia-Hsiang
Publisher: name: University of British Columbia
Year: 2013

description: Background: Cardiac transplantation is considered the primary therapy for patients with end-stage heart failure. However, the detection of chronic cardiac allograft rejection (expressed as cardiac allograft vasculopathy; CAV) remains an important unsettled issue in cardiac transplantation. The current gold standards for the diagnosis and monitoring of acute rejection and CAV are invasive in nature with risk for complications. From a clinical perspective, more accurate, minimally-invasive alternatives are clearly desirable. The goal of my thesis is to identify biomarkers of human heart allograft rejection, and assess their potential clinical utility and biological implications in the respective disease contexts. Central hypothesis: Peripheral blood-derived molecular biomarker panels provide a means for sensitive and specific diagnosis of acute and chronic cardiac allograft rejection, as well as helping to gain insight into the underlying mechanisms of rejection. Methods: Genomic biomarkers of acute cardiac allograft rejection (AR) and proteomic biomarkers of cardiac allograft vasculopathy (CAV) were identified via Affymetrix microarray analysis of whole blood samples and iTRAQ proteomic analysis of plasma samples, respectively, from cardiac transplant patients. From the genes differentially expressed between AR vs. Non-rejectors (NR), and differentially expressed proteins between CAV and Non-significant CAV (Non-CAV) subjects, biomarkers panels for AR and CAV were generated using classification methods. AR and CAV biomarkers were further analyzed for their biological implications using bioinformatical tools. Results: Microarray comparison between the AR and NR subjects revealed over 1000 differentially expressed genes, many of which that were associated with cellular functions involved in innate and humoral immunity. The 12-gene biomarker panel generated based on the differentially expressed candidates demonstrated 83% sensitivity and 100% specificity. Proteomic analysis of CAV versus Non-CAV plasma samples ultimately lead to the generation of an 18-protein biomarker panel which demonstrated 80% sensitivity and 89% specificity for CAV.
Fusion in the entwined category of Yetter--Drinfeld modules of a rank-1 Nichols algebra
Creators: name: Semikhatov, A. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We rederive a popular nonsemisimple fusion algebra in the braided context, from a Nichols algebra. Together with the decomposition that we find for the product of simple Yetter-Drinfeld modules, this strongly suggests that the relevant Nichols algebra furnishes an equivalence with the triplet W-algebra in the (p,1) logarithmic models of conformal field theory. For this, the category of Yetter-Drinfeld modules is to be regarded as an \textit{entwined} category (the one with monodromy, but not with braiding).
description: 36 pages, amsart++, times, xy. V3: references added, an unnecessary assumption removed, plus some minor changes