cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
First SETI Observations with China's Five-hundred-meter Aperture Spherical radio Telescope (FAST)
Creators: name: Zhang, Zhi-Song
name: Werthimer, Dan
name: Zhang, Tong-Jie
name: Cobb, Jeff
name: Korpela, Eric
name: Anderson, David
name: Gajjar, Vishal
name: Lee, Ryan
name: Li, Shi-Yu
name: Pei, Xin
name: Zhang, Xin-Xin
name: Huang, Shi-Jie
name: Wang, Pei
name: Zhu, Yan
name: Duan, Ran
name: Zhang, Hai-Yan
name: Jin, Cheng-jin
name: Zhu, Li-Chun
name: Li, Di
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Search for Extraterrestrial Intelligence (SETI) attempts to address the possibility of the presence of technological civilizations beyond the Earth. Benefiting from high sensitivity, large sky coverage, an innovative feed cabin for China's Five-hundred-meter Aperture Spherical radio Telescope (FAST), we performed the SETI first observations with FAST's newly commisioned 19-beam receiver; we report preliminary results in this paper. Using the data stream produced by the SERENDIP VI realtime multibeam SETI spectrometer installed at FAST, as well as its off-line data processing pipelines, we identify and remove four kinds of radio frequency interference(RFI): zone, broadband, multi-beam, and drifting, utilizing the Nebula SETI software pipeline combined with machine learning algorithms. After RFI mitigation, the Nebula pipeline identifies and ranks interesting narrow band candidate ET signals, scoring candidates by the number of times candidate signals have been seen at roughly the same sky position and same frequency, signal strength, proximity to a nearby star or object of interest, along with several other scoring criteria. We show four example candidates groups that demonstrate these RFI mitigation and candidate selection. This preliminary testing on FAST data helps to validate our SETI instrumentation techniques as well as our data processing pipeline.
description: 21 pages, 19 figures, 3 tables, published in ApJ
Generalized Sum of Stella Octangula Numbers
Creators: name: Sparavigna, Amelia Carolina
Publisher: name: Zenodo
Year: 2021
Subjects: Groupoid Representations
On-Line Encyclopedia of Integer Sequences
OEIS
Integer Sequences
Binary Operators
Generalized Sums

description: A generalized sum is an operation that combines two elements to obtain another element, generalizing the ordinary addition. Here we discuss that concerning the Stella Octangula Numbers. We will also show that the sequence of these numbers, OEIS A007588, is linked to sequences OEIS A033431 and OEIS A002378, that of the oblong (or pronic) numbers.
Green institutions in Brazil: The road from Stockholm to Rio
Creators: name: Duarte, Lilian Cristina B.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society
classificationCode: 4408
subject: Political science
subject: FOS: Political science

description: Brazil's performance regarding environmental issues during the 1970s and 1980s drew severe criticism from the international community. A survey of articles in the press, scholarly papers and books about environmental policies reveals that successive Brazilian administrations are described at best as indifferent to the environmental degradation of the territory; at worst as frankly unwilling to take steps to reconcile economic growth with environmental conservation. The possible exception is the overall assessment of Fernando Collor de Mello's administration, the civilian president who also chaired the United Nations Conference on Environment and Development in 1992. The signs that Brazilian administrations were not indifferent to environmental problems or to criticisms from the international community are evident since the 1970s. In October 1973, an authoritarian military administration created the Special Secretariat for the Environment (SEMA), and a national policy for the environment began to emerge. In the years that followed a complex system developed, which includes a sophisticated regulatory framework, specialized agencies and trained personnel. This research represents an effort to provide a more comprehensive and balanced perspective on the evolution of environmental environmental awareness and institution-building in Brazil over a thirty-year period that was rich with political and social changes for the country. It was also a time of significant changes in international environmentalism--as illustrated by the two environmental conferences sponsored by the United Nations (in Stockholm, in 1972, and in Rio, in 1992). Contrary to widespread perception, the Brazilian state was not a late starter as regards the adoption of an environmental agenda. In fact, Brazilian environmental institutions evolved at the interface of the country's domestic and international policies. Environmental awareness was integrated into the state's geopolitical visions of national security and development strategies, helped shape both domestic and foreign policies in Brazil and constitutes an important element of Brazilian political history and its relations with other nations.
Nuclear Magnetic Resonance in a Ferromagnet-Semiconductor Heterostructure
Creators: name: Strand, J.
name: Schultz, B. D.
name: Isakovic, A. F.
name: Lou, X.
name: Palmstrom, C. J.
name: Crowell, P. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We report the observation of nuclear magnetic resonance (NMR) in a ferromagnet-semiconductor heterostructure in the presence of a spin-polarized current. Spin-polarized electrons injected from a metallic ferromagnet generate a large nuclear spin population in a GaAs quantum well by dynamic polarization. The characteristic time for the polarization process is approximately 20 sec, and the nuclear polarization can persist for several minutes after the current is turned off. Resonant depolarization is observed in the presence of an AC magnetic field or when the injection current is modulated at the NMR frequency.
description: submitted to Applied Physics Letters
The Future of Digital Health with Federated Learning
Creators: name: Rieke, Nicola
name: Hancox, Jonny
name: Li, Wenqi
name: Milletari, Fausto
name: Roth, Holger
name: Albarqouni, Shadi
name: Bakas, Spyridon
name: Galtier, Mathieu N.
name: Landman, Bennett
name: Maier-Hein, Klaus
name: Ourselin, Sebastien
name: Sheller, Micah
name: Summers, Ronald M.
name: Trask, Andrew
name: Xu, Daguang
name: Baust, Maximilian
name: Cardoso, M. Jorge
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computers and Society (cs.CY)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Data-driven Machine Learning has emerged as a promising approach for building accurate and robust statistical models from medical data, which is collected in huge volumes by modern healthcare systems. Existing medical data is not fully exploited by ML primarily because it sits in data silos and privacy concerns restrict access to this data. However, without access to sufficient data, ML will be prevented from reaching its full potential and, ultimately, from making the transition from research to clinical practice. This paper considers key factors contributing to this issue, explores how Federated Learning (FL) may provide a solution for the future of digital health and highlights the challenges and considerations that need to be addressed.
description: This is a pre-print version of https://www.nature.com/articles/s41746-020-00323-1
Cosmic acceleration driven by dark matter self-interactions: a phenomenological treatment
Creators: name: Çamlıbel, A. Kazım
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We explore the idea that cosmic acceleration may be a byproduct of late-time effects like structure formation in two steps. First, we consider the equation of state for an inhomogeneous cosmic fluid, which may lead to a Gedanken-model for cosmic evolution, where dark matter is strongly self-interacting and stays in a plasma state until late stages of the cosmic evolution. After decoupling, it condensates to super-structures with cosmic voids similar to the current picture of the universe, introducing a negative pressure term in relation to self-interaction strength. Secondly, we carry out a cosmological analysis inspired by this scenario via a phenomenological ansatz that exhibits a transient behavior. In this analysis, we use the recent Type Ia supernova compilation and high redshift quasar data and compare the results to that of $Λ$CDM. It turns out that proposed model can solve the quasar Hubble diagram tension.
description: Matches the published version
title: A history of wear and wear prevention 1700-1940
Creators: name: Anderson, John Cooper
Publisher: name: The Open University
Year: 1986

description: Much of the present knowledge of the processes involved in the wear of materials has been derived since the end of the Second World War. This thesis shows, however, that many of the basic concepts of wear were understood, at least empirically, prior to 1940. Factors which influenced the rate of wear of components in machines began to be investigated during the second half of the last century, and particular combinations of sliding materials were chosen to give an adequate wear life for their applications. As background, the first two chapters describe the work on sliding and rolling friction during the eighteenth and nineteenth centuries. The third chapter present evidence which shows how the empirical understanding of wear developed up to 1940. This covers wear in both sliding and rolling contact, the relationship between wear and hardness as well as wear under abrasive conditions. The next chapter shows how the concept of the real area of contact, as opposed to the apparent area, emerged from studies of the electrical resistance between two metals in contact. With this technique, measurements of the real area of contact between surfaces under various loads were made in the late nineteen thirties. The chapter also traces the development of instruments for assessing the roughness of surfaces during the same decade. Chapters 5, 6 and 7 deal with wear prevention. Chapter 5 shows how developments in plain bearings kept pace with the duties imposed on them and describes some special forms, such as the "anti-friction" pivot and the marine thrust bearing. Data is also provided on the way in which the loads and speeds of bearings increased from 1700 to 1900. Chapter 6 deals with fluid lubrication and with the pioneering work of G.A. Hirn. Hirn's experiments were the first to demonstrate convincingly the complete separation of surfaces by a film of fluid. In chapter 7 the advances in metallurgy which enabled improved bearing metals to be made are outlined. In particular, the origins of the production of high-lead bronzes is described. These alloys proved to be highly wear resistant. Some aspects of white metals (both lead and tin based) are also described. The emphasis in the thesis is on the practical steps which were taken to mitigate the detrimental aspects of wear and to develop wear resistant materials, particularly for sliding bearings. The evidence presented shows that whilst separation of surfaces by a fluid film is the ideal means of preventing wear,in many instances lubrication conditions were far from ideal.
On the functional form between behavior and reinforcement on ratio schedules
Creators: name: Widholm, John Joseph
Publisher: name: American University
Year: 2023

description: In daily sessions, each of five pigeons pecked an illuminated disk in an experimental chamber in order to produce enough grain presentations according to a Fixed-or Variable-Ratio schedule to maintain its body weight at 80% of its free-feeding level. Each of two schedule types (Fixed- and Variable-Ratio) was factorially combined with seven ratio sizes (4, 8, 16, 32, 64, 128, and 256) to create 14 experimental conditions. Each condition lasted 15 days or until responding was judged stable, whichever was longer. When response rate (responses divided by session time excluding hopper duration) was plotted as a function of ratio size, response rates increased over the ratio sizes 4 to 16 and decreased thereafter. When running rate (total responses minus the first post-reinforcement response divided by session time minus the sum of the post-reinforcement pauses and hopper durations) served as the dependent variable, the resulting function decreased with increases in ratio size. This difference in functional form between response-rate and running-rate measures was attributed to the fact that the post-reinforcement pause occupies a greater proportion of session time at the smallest ratio sizes even though the post-reinforcement pauses were typically of one second's duration--an interval approximating the probable minimum transit time for the pigeon to move its head from the grain hopper to the pecking disk. Thus, the upward limb generated by ratio schedules over ratio sizes ranging from 4 to 16 may be an epiphenomenon of hopper-to-disk transit time.
Conformal Symmetry and Composite Operators in the $O(N)^3$ Tensor Field Theory
Creators: name: Benedetti, Dario
name: Gurau, Razvan
name: Suzuki, Kenta
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We continue the study of the bosonic $O(N)^3$ model with quartic interactions and long-range propagator. The symmetry group allows for three distinct invariant $ϕ^4$ composite operators, known as tetrahedron, pillow and double-trace. As shown in arXiv:1903.03578 and arXiv:1909.07767, the tetrahedron operator is exactly marginal in the large-$N$ limit and for a purely imaginary tetrahedron coupling a line of real infrared fixed points (parametrized by the absolute value of the tetrahedron coupling) is found for the other two couplings. These fixed points have real critical exponents and a real spectrum of bilinear operators, satisfying unitarity constraints. This raises the question whether at large-$N$ the model is unitary, despite the tetrahedron coupling being imaginary. In this paper, we first rederive the above results by a different regularization and renormalization scheme. We then discuss the operator mixing for composite operators and we give a perturbative proof of conformal invariance of the model at the infrared fixed points by adapting a similar proof from the long-range Ising model. At last, we identify the scaling operators at the fixed point and compute the two- and three-point functions of $ϕ^4$ and $ϕ^2$ composite operators. The correlations have the expected conformal behavior and the OPE coefficients are all real, reinforcing the claim that the large-$N$ CFT is unitary.
description: 44 pages, 17 figures; v2: Significant changes, one of the relevant results in version 1 has been amended
The BABAYAGA event generator
Creators: name: Calame, C. M. Carloni
name: Montagna, G.
name: Nicrosini, O.
name: Piccinini, F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The program BABAYAGA is an event generator for QED processes at flavour factories, mainly intended for luminosity measurement of e+ e- colliders in the center of mass range 1-10 GeV. Recently, the pi+ pi- channel has been added as well. The relevant (photonic) radiative corrections are simulated by means of a Parton Shower in QED. The theoretical precision of the approach is estimated and some phenomenological results are discussed.
description: talk given at "SIGHAD03 - Worskhop on Hadronic Cross Section at Low Energy", Pisa, Italy, 8 -10 October, 2003
Comunicación, ciudadanía y esperanza para los adultos mayores
Creators: name: Suing, Abel
Publisher: name: Zenodo
Year: 2021
Subjects: comunicación
ciudadanía
adultos
derechos
Ecuador

description: Publicación en la sección de opinión del diario digital hora 32 https://hora32.com.ec/ que se edita en Loja (Ecuador)
A new view on the origin of zero-bias anomalies of Co atoms atop noble metal surfaces
Creators: name: Bouaziz, Juba
name: Guimarães, Filipe Souza Mendes
name: Lounis, Samir
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Many-body phenomena are paramount in physics. In condensed matter, their hallmark is considerable on a wide range of material characteristics spanning electronic, magnetic, thermodynamic and transport properties. They potentially imprint non-trivial signatures in spectroscopic measurements, such as those assigned to Kondo, excitonic and polaronic features, whose emergence depends on the involved degrees of freedom. Here, we address systematically zero-bias anomalies detected by scanning tunneling spectroscopy on Co atoms deposited on Cu, Ag and Au(111) substrates, which remarkably are almost identical to those obtained from first-principles. These features originate from gaped spin-excitations induced by a finite magnetic anisotropy energy, in contrast to the usual widespread interpretation relating them to Kondo resonances. Resting on relativistic time-dependent density functional and many-body perturbation theories, we furthermore unveil a new many-body feature, the spinaron, resulting from the interaction of electrons and spin-excitations localizing electronic states in a well defined energy.
description: Supplementary Information included
Bienvenido a VIVO
Creators: name: Friedman, Paul
name: Kibbe, Warren A
name: Ilik, Violeta
name: Holmes, Kristi
name: Starren, Justin B
Publisher: name: DigitalHub. Galter Health Sciences Library
Year: 2015
Subjects: subject: VIVO
subject: Visualization
subject: LatticeGRID
subject: RDF
subject: Open Data
subject: Data Display
subject: Data Mining
subject: Information Storage and Retrieval
subject: Linked data
subject: Ontologies (Information retrieval)
subject: Information visualization

description: Moving  from  a  custom  application  to  one  that  uses  VIVO-compatible  Linked Open Data.
An Investigation into the Life Cycle Analysis of Bags Used for Food Scraps Collection
Creators: name: Bednarek, Sebastian
name: Deutsch, Peter
name: Kambo, Rajdeep
name: Yu, Albert
Publisher: name: The University of British Columbia
Year: 2017

description: As a university dedicated to sustainability through initiatives such as “Zero Waste Campus,” UBC is continually looking for ways to improve its sustainability throughout its daily operations. One such area of concern for UBC Operations is the use of plastic bags in the collection of food scraps across campus. Partnering with the UBC SEEDS program through SEEDS sponsor Mr. Bud Fraser, an investigation was conducted pertaining to the “Life Cycle Analysis of Bags Used for Food Scraps Collection” at UBC. Research was conducted using both primary and secondary sources with an emphasis on analysis through the Triple Bottom Line (TBL) approach. Primary sources included a Q&A workshop with Mr. Fraser in addition to a tour of the composting facility, and secondary sources included a wide variety of peer-reviewed and popular sources. A number of environmental, economic, and social indicators were used to help conduct this TBL analysis. The indicators focused on within this report include the GHG (greenhouse gas) emissions per bag at every stage during their lifespan, the amount of water required to make a bag, the economic cost of different bag types, the cost of maintaining compost bins, and the effects that the type of bag has on the daily routines of UBC Operations staff. After assessing and comparing three alternatives to standard plastic bags (paper, compostable plastic, and no bags) using the Triple Bottom Line approach, it was concluded the best course of action would be to discontinue the use of plastic bags and begin to use paper bags as the primary liners for small compost bins. In addition to switching to paper bags, it was concluded that utilizing plastic bags as a security liner and using binder clips to keep the paper bag in place would ultimately result in a system which is ecologically friendly while not a burden on operations staff. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
On the functional form between behavior and reinforcement on ratio schedules
Creators: name: Widholm, John Joseph
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology

description: In daily sessions, each of five pigeons pecked an illuminated disk in an experimental chamber in order to produce enough grain presentations according to a Fixed-or Variable-Ratio schedule to maintain its body weight at 80% of its free-feeding level. Each of two schedule types (Fixed- and Variable-Ratio) was factorially combined with seven ratio sizes (4, 8, 16, 32, 64, 128, and 256) to create 14 experimental conditions. Each condition lasted 15 days or until responding was judged stable, whichever was longer. When response rate (responses divided by session time excluding hopper duration) was plotted as a function of ratio size, response rates increased over the ratio sizes 4 to 16 and decreased thereafter. When running rate (total responses minus the first post-reinforcement response divided by session time minus the sum of the post-reinforcement pauses and hopper durations) served as the dependent variable, the resulting function decreased with increases in ratio size. This difference in functional form between response-rate and running-rate measures was attributed to the fact that the post-reinforcement pause occupies a greater proportion of session time at the smallest ratio sizes even though the post-reinforcement pauses were typically of one second's duration--an interval approximating the probable minimum transit time for the pigeon to move its head from the grain hopper to the pecking disk. Thus, the upward limb generated by ratio schedules over ratio sizes ranging from 4 to 16 may be an epiphenomenon of hopper-to-disk transit time.
Type IIA Orientifolds on General Supersymmetric Z_N Orbifolds
Creators: name: Blumenhagen, Ralph
name: Conlon, Joseph P.
name: Suruliz, Kerim
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct Type IIA orientifolds for general supersymmetric Z_N orbifolds. In particular, we provide the methods to deal with the non-factorisable six-dimensional tori for the cases Z7, Z8, Z8', Z12 and Z12'. As an application of these methods we explicitly construct many new orientifold models.
description: 48 pages, LaTeX, 14 figures, refs. added, closed string spectra slightly changed
Additional file 8 of Phylogenetic relationship between Australian Fusarium oxysporum isolates and resolving the species complex using the multispecies coalescent model
Creators: name: Saidi R. Achari
name: Kaur, Jatinder
name: Dinh, Quang
name: Mann, Ross
name: Sawbridge, Tim
name: Summerell, Brett A.
name: Edwards, Jacqueline
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 8: Supplementary Figure 5. Maximum likelihood consensus tree with bootstrap node support of > 70% was inferred from the sequences of the large variable region of Variant 1 Fusarium oxysporum isolates. Eight reference isolates (Foc001, NRRL25433, Fon002, Fod001, NRRL54005, F11, NRRL26381 and Forc016) from Brankovics et al. [23] were included in the analysis. The tree was rooted to Fusarium proliferatum (ITEM2287).
Signs of Planetary Microlensing Signals
Creators: name: Han, Cheongho
name: Chang, Kyongae
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An extrasolar planet can be detected via microlensing from the perturbation it makes in the smooth lensing light curve of the primary. In addition to the conventional photometric microlensing, astrometric observation of the center-of-light motion of the source star image provides a new channel of detecting and characterizing extrasolar planets. It was known that the planet-induced astrometric signals tend to be positive while the photometric signals can be either positive or negative. In this paper, we analytically show the reason for these tendencies of microlensing planetary signals.
description: accepted in Astrophysical Journal
Global finance, domestic politics: Exchange rate policymaking in Britain, France, and Italy
Creators: name: Walsh, James Igoe
Publisher: name: American University
Year: 2023

description: This study analyzes how domestic politics and institutions influenced monetary and exchange-rate policies in Britain, France, and Italy from the 1970s to the 1990s. Cross-national variation in policy choice was a function of the political coalitions produced by patterns of bank-industry relations in the three countries. Where banks and industry had close relations, in France and Italy, they formed a powerful coalition preferring policies that would keep the exchange rate stable and competitive. In Britain, where bank-industry links were weak, industry preferred a competitive exchange rate but was not supported by the financial sector. These differences in the organization of industrial finance produced distinct patterns of policy choice. In France and Italy, policymakers devoted more attention to keeping their exchange rates stabile at competitive levels. British policymakers devoted much less attention maintaining a stable and competitive value for the currency. On two occasions they actively encouraged exchange-rate appreciation despite the fact that this had negative consequences for the international competitiveness of British industry. French and Italian policymakers also demonstrated greater interest in the construction of international monetary regimes that promised to stabilize their currencies. British policymakers showed little interest in such regimes.
On Optimal Wage Indexation When Shocks are Real
Creators: name: Danziger, Leif
name: Danziger, Leif
Publisher: name: Unknown
Year: 1981
Subjects: Financial Economics
Labor and Human Capital

description: This note studies the optimal degree of wage indexation in the presence of real shocks. Contrary to what is indicated in the literature, it is demonstrated that the optimal degree of indexation is not limited to (0;1) but may take any value in
Global finance, domestic politics: Exchange rate policymaking in Britain, France, and Italy
Creators: name: Walsh, James Igoe
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society
classificationCode: 4408
subject: Political science
subject: FOS: Political science

description: This study analyzes how domestic politics and institutions influenced monetary and exchange-rate policies in Britain, France, and Italy from the 1970s to the 1990s. Cross-national variation in policy choice was a function of the political coalitions produced by patterns of bank-industry relations in the three countries. Where banks and industry had close relations, in France and Italy, they formed a powerful coalition preferring policies that would keep the exchange rate stable and competitive. In Britain, where bank-industry links were weak, industry preferred a competitive exchange rate but was not supported by the financial sector. These differences in the organization of industrial finance produced distinct patterns of policy choice. In France and Italy, policymakers devoted more attention to keeping their exchange rates stabile at competitive levels. British policymakers devoted much less attention maintaining a stable and competitive value for the currency. On two occasions they actively encouraged exchange-rate appreciation despite the fact that this had negative consequences for the international competitiveness of British industry. French and Italian policymakers also demonstrated greater interest in the construction of international monetary regimes that promised to stabilize their currencies. British policymakers showed little interest in such regimes.
On the Optimal Policy of Price Adjustments When Demanded and Cost are Uncertain
Creators: name: Danziger, Leif
name: Danziger, Leif
Publisher: name: Unknown
Year: 1981
Subjects: Financial Economics

description: This paper presents a model of a monopolistic firm's price adjustment. The firm's demand and cost are exposed to random shocks, and price adjustments are costly. It is shown that an increase in the riskiness of the shocks will have an ambiguous effect both on the expected size of the price adjustments and on the time interval between two consecutive price adjustments. It is also shown that an increase in the frequency of the shocks will have an ambiguous effect on the former and will decrease the latter, while an increase in the cost of price adjustments or in the interest rate will increase both the former and the latter.
Measurement of the spin structure function g(2)(x,Q(2)) for the neutron
Creators: name: Reyna, David E.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences
classificationCode: 5107
subject: Particle and high energy physics

description: The asymmetry $A\sb2(x,Q\sp2)$ and structure function $g\sb2(x,Q\sp2)$ were measured for the neutron using deep inelastic electron scattering. The measurement was made using the 50 GeV longitudinally polarized electron beam at the Stanford Linear Accelerator Center. The target consisted of gaseous $\sp3$He which was polarized through spin exchange with optically pumped rubidium vapor. Data were taken simultaneously with two magnetic spectrometers fixed at 2.75$\sp\circ$ and 5.5$\sp\circ$ scattering angles, covering a combined kinematic range of $0.014\le x\le0.7$ and $1.0\le Q\sp2\le17.0$ (GeV/c)$\sp2.$ The $A\sb2$ data were found to be well bounded by the positivity constraint $\vert A\sb2\vert\le\sqrt{R},$ and most of the data were consistent with zero. The $g\sb2$ structure function was found to be consistent with zero and with the twist-2 Wandzura-Wilczek prediction. In addition, the Operator Product Expansion twist-3 matrix element $d\sb2$ was calculated from the data and found to be consistent with all theoretical predictions.
Measurement of the spin structure function g(2)(x,Q(2)) for the neutron
Creators: name: Reyna, David E.
Publisher: name: American University
Year: 2023

description: The asymmetry $A\sb2(x,Q\sp2)$ and structure function $g\sb2(x,Q\sp2)$ were measured for the neutron using deep inelastic electron scattering. The measurement was made using the 50 GeV longitudinally polarized electron beam at the Stanford Linear Accelerator Center. The target consisted of gaseous $\sp3$He which was polarized through spin exchange with optically pumped rubidium vapor. Data were taken simultaneously with two magnetic spectrometers fixed at 2.75$\sp\circ$ and 5.5$\sp\circ$ scattering angles, covering a combined kinematic range of $0.014\le x\le0.7$ and $1.0\le Q\sp2\le17.0$ (GeV/c)$\sp2.$ The $A\sb2$ data were found to be well bounded by the positivity constraint $\vert A\sb2\vert\le\sqrt{R},$ and most of the data were consistent with zero. The $g\sb2$ structure function was found to be consistent with zero and with the twist-2 Wandzura-Wilczek prediction. In addition, the Operator Product Expansion twist-3 matrix element $d\sb2$ was calculated from the data and found to be consistent with all theoretical predictions.
Additional file 9 of Phylogenetic relationship between Australian Fusarium oxysporum isolates and resolving the species complex using the multispecies coalescent model
Creators: name: Saidi R. Achari
name: Kaur, Jatinder
name: Dinh, Quang
name: Mann, Ross
name: Sawbridge, Tim
name: Summerell, Brett A.
name: Edwards, Jacqueline
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 9: Supplementary Figure 6. Maximum likelihood consensus tree with bootstrap node support of > 70% was inferred from the sequences of the large variable region of Variant 2 and 3 Fusarium oxysporum isolates. One reference isolate per variant type (V2-DF041, V3-NRRL37622) from Brankovics et al. [23] was included in the analysis. The trees were not rooted.
Expected masses of merging compact object binaries observed in gravitational waves
Creators: name: Bulik, T.
name: Gondek-Rosinska, D.
name: Belczynski, K.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We use the well tested StarTrack binary population synthesis code to examine the properties of the population of compact object binaries. We calculate the distribution of masses and mass ratios taking into account weights introduced by observability in gravitational waves during inspiral. We find that in the observability weighted distribution of double neutron star binaries there are two peaks: one for nearly equal mass systems, and one for the systems consisting of a low and a high mass neutron star, $q=0.6-0.7$. The observability weighted distribution of black hole neutron star binaries is concentrated on the systems with the mass ratio $q=0.3-0.5$, while for the double black hole binaries the observability weighted distribution is dominated by the massive, nearly equal mass binaries with $q>0.7$.
description: 9 pages, MNRAS in press, revised version
title: Amerigo Vespucci's contribution to the Waldseemüller map
Creators: name: Pápay, Gyula
Publisher: name: KartDok - Repositorium Kartographie
Year: 2022
Subjects: subject: Vespucci, Amerigo
subject: Waldseemüller, Martin
subject: naming of America
subject: discovery of the Pacific coast of South America
subject: determination of latitude
subject: Namensnennung von Amerika
subject: Entdeckung der Pazifikküste von Südamerika
subject: Bestimmung des Breitengrads
subject: 520

description: The depiction of the Western Hemisphere in Waldseemüller's 1507 world map is based on a map by Vespucci, who used the results of Spanish and Portuguese voyages of discovery for it. The naming of South America with the name "America" in the 1507 world map was not a mistake, as it was primarily used to honour the cartographer Vespucci. The depiction of the Pacific coast of South America in Waldseemüller's map was not speculative. It was based on exploration. The exploration of the Pacific coast of South America was very probably based on Vespucci's participation. An important indication of this is that the astronomical determination of latitude in the southern hemisphere could only take place on the basis of such lengthy astronomical observations, for which Vespucci laid the groundwork during his earlier voyages.
Loss of ultracold RbCs molecules via optical excitation of long-lived two-body collision complexes
Creators: name: Gregory, Philip D.
name: Blackmore, Jacob A.
name: Bromley, Sarah L.
name: Cornish, Simon L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We show that the lifetime of ultracold ground-state $^{87}$Rb$^{133}$Cs molecules in an optical trap is limited by fast optical excitation of long-lived two-body collision complexes. We partially suppress this loss mechanism by applying square-wave modulation to the trap intensity, such that the molecules spend 75% of each modulation cycle in the dark. By varying the modulation frequency, we show that the lifetime of the collision complex is $0.53\pm0.06$ ms in the dark. We find that the rate of optical excitation of the collision complex is $3^{+4}_{-2}\times10^{3}$ W$^{-1}$ cm$^2$ s$^{-1}$ for $λ= 1550$ nm, leading to a lifetime of <100 ns for typical trap intensities. These results explain the two-body loss observed in experiments on nonreactive bialkali molecules.
description: 6 pages, 4 figures
Effect of Chitosan Deacetylation on Its Affinity to Type III Collagen: A Molecular Dynamics Study
Creators: name: Beldowski, Piotr
name: Przybyłek, Maciej
name: Cysewski, Piotr
name: Gadomski, Adam
Publisher: name: figshare
Year: 2022
Subjects: subject: 30402 Biomolecular Modelling and Design
subject: FOS: Chemical sciences
subject: 30301 Chemical Characterisation of Materials
subject: 30403 Characterisation of Biological Macromolecules
subject: Computational Chemistry
subject: 30399 Macromolecular and Materials Chemistry not elsewhere classified
subject: Molecular Physics
subject: 30302 Nanochemistry and Supramolecular Chemistry
subject: 30502 Natural Products Chemistry
subject: 30699 Physical Chemistry not elsewhere classified
subject: 30304 Physical Chemistry of Materials
subject: 30406 Proteins and Peptides
subject: Supramolecular Chemistry
subject: 30799 Theoretical and Computational Chemistry not elsewhere classified
subject: 30307 Theory and Design of Materials

description: The ability to form strong intermolecular interactions by linear glucosamine polysaccharides with collagen is strictly related to their nonlinear dynamic behavior and hence bio-lubricating features. Type III collagen plays a crucial role in tissue regeneration, and its presence in the articular cartilage affects its bio-technical features. In this study, the molecular dynamics methodology was applied to evaluate the effect of deacetylation degree on the chitosan affinity to type III collagen. The computational procedure employed docking and geometry optimizations of different chitosan structures characterized by randomly distributed deacetylated groups. The eight different degrees of deacetylation from 12.5% to 100% were taken into account. We found an increasing linear trend (R2 = 0.97) between deacetylation degree and the collagen–chitosan interaction energy. This can be explained by replacing weak hydrophobic contacts with more stable hydrogen bonds involving amino groups in N-deacetylated chitosan moieties. In this study, the properties of chitosan were compared with hyaluronic acid, which is a natural component of synovial fluid and cartilage. As we found, when the degree of deacetylation of chitosan was greater than 0.4, it exhibited a higher affinity for collagen than in the case of hyaluronic acid.
title: Mail à John David et Carl Nathan - Pièce jointe
Creators: name: Leibowitch, Jacques
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Pièce jointe: Margaret I. Johnston and Anthony S. Fauci, "HIV Vaccine Development — Improving on Natural Immunity", extrait du New England Journal of Medicine, vol. 365, 2011, no 10 (8 septembre) .
description: Source: http://www.calames.abes.fr/pub/ms/Calames-20193111132347715
The feminization of serial killing: A gender identity study of male and female serialists using covert methods of murder
Creators: name: Kirby, Patricia Lee
Publisher: name: American University
Year: 2023

description: This research explores the gender identities of males and females convicted of serial killing in the United States, who used covert methods of murder. The existing literature concerning male and female serialists indicates that the greatest differences are their methods of murder and the levels of violence associated with the killings. Gender is proposed as the explanation. Men use overt methods of murder (shooting, stabbing, bludgeoning) and women choose covert (poisoning, suffocation, lethal injection). A review of past and present serial murderers indicates that males and a female using overt methods of murder were in traditionally masculine occupations. But males and females using covert murder methods were in traditionally feminine roles and occupations. To date this observation has not been studied. Thus, a theoretical sample of three females and five males convicted of killing in a serial manner, and using covert methods, was interviewed to generate a conceptual understanding about the gender identities of these individuals. This group of male and female serialists is atypical. First, it is unusual for women to commit serial murder. Second, gender is believed to determine the methods used in killing. And third, "real" men do not engage in occupations perceived as "women's" work. The question guiding the research is: Does the gender identity of male and female serialists explain their use of covert methods of murder? In-depth face-to-face interviews with the eight subjects were the primary source of data collection. Additional document analysis included trial transcripts, and journal and media articles. The study indicated that gender identity influenced the male and female serialists in their selection of female-dominated occupations. While engaged in these occupations, the men practiced masculinity and the women practiced femininity. Since the victim selection and murderous behavior occurred while working in these caregiver roles, the use of covert methods was more consistent with the feminine roles and occupations rather than their gendered behaviors. A conceptual model was constructed to reflect these findings.
The definability of the extender sequence $\mathbb{E}$ from $\mathbb{E}{\upharpoonright}\aleph_1$ in $L[\mathbb{E}]$
Creators: name: Schlutzenberg, Farmer
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03E45, 03E55

description: Let $M$ be a short extender mouse. We prove that if $E\in M$ and $M$ satisfies "$E$ is a countably complete short extender whose support is a cardinal $θ$ and $\mathcal{H}_θ\subseteq\mathrm{Ult}(V,E)$", then $E$ is in the extender sequence $\mathbb{E}^M$ of $M$. We also prove other related facts, and use them to establish that if $κ$ is an uncountable cardinal of $M$ and $κ^{+M}$ exists in $M$ then $(\mathcal{H}_{κ^+})^M$ satisfies the Axiom of Global Choice.
 We prove that if $M$ satisfies the Power Set Axiom then $\mathbb{E}^M$ is definable over the universe of $M$ from the parameter $X=\mathbb{E}^M\upharpoonright\aleph_1^M$, and $M$ satisfies "every set is $\mathrm{OD}_{\{X\}}$". We also prove various local versions of this fact in which $M$ has a largest cardinal, and a version for generic extensions of $M$.
 As a consequence, for example, the minimal proper class mouse with a Woodin limit of Woodin cardinals models "$V=\mathrm{HOD}$". This adapts to many other similar examples.
 We also describe a simplified approach to Mitchell-Steel fine structure, which does away with the parameters $u_n$.
description: 37 pages. This is the author accepted version of the article published in The Journal of Symbolic Logic, available online at http://www.doi.org/10.1017/jsl.2024.27 . Various minor corrections have been made in this version, particularly in section 5
VAN İLİNDE DİŞ HEKİMLİĞİ FAKÜLTESİNE BAŞVURAN HASTALARDA AĞIZ SAĞLIĞI İLE DENTAL KORKU ARASINDAKİ İLİŞKİNİN İNCELENMESİ
Creators: name: Kara, Emine
name: Değirmenci, Alperen
name: Değirmenci, Beyza Ünalan
Publisher: name: figshare
Year: 2021
Subjects: subject: 110599 Dentistry not elsewhere classified
subject: FOS: Clinical medicine

description: Diş Hekimliğine gelen hastalarda yaşanabilecek dental korku düzeyi ile ağız sağlığı arasında herhangi bir ilişkinin olup olmadığının araştırılmasıdır. YYÜ Diş Hekimliği Fakültesi’ne başvuran 18-72 yaş arasındaki 500 hastanın DAS (Modified Dental Anxiety Scale) ile dental korku seviyeleri ölçülmüştür. Ağız içi muayeneleri yapılıp DMFT indeksi, çürük diş sayısı (DT), eksik diş sayısı (MT), dolgulu diş sayısı (FT) belirlenmiştir. Bireylere yaş, cinsiyet, öğrenim durumu, diş hekimini ziyareti, 7,2’lik 23 Ekim 2011 Van Depremi’ni yaşayıp yaşamadığı sorulmuştur. Elde edilen verilerin istatistiksel analizlerde Student’s t ve Ki-kare testleri kullanıldı. Hastaların t,4’ünün düşük dental korku seviyesine sahip olduğu bulunmuştur. Yüksek dental korkuya sahip hastaların h.75’inin kadın olduğu ve kadınların erkeklere göre istatistiksel olarak daha yüksek dental korku seviyesine sahip olduğu gözlenmiştir (p<0,05). Çalışmaya katılan hastalar yaşlarına göre A (18-36), B (37-55), C (56-72) alt gruplarında incelenmiştir. Yaş gruplarına göre anlamlı bir farklılık saptanamamıştır (p>0,05). Eğitim seviyeleri kıyaslandığında, yükseköğrenim mezunlarının daha yüksek dental korku seviyesine sahip olduğu saptanmıştır (p<0,05). Diş hekimi ziyaretleri göz önünde bulundurularak yapılan incelemede, bireylerin dental anksiyete seviyeleri arasında bir fark tespit edilemezken (p>0,05); diş hekimine gidiş sıklığının artışı ile dental anksiyete seviyesinde düşüş olduğu tespit edilmiştir (p<0,05). Van depremini yaşayan ile yaşamayan hastaların dental korku seviyelerinde anlamlı bir farklılık gözlenmemiştir (p>0,05). Dental korku seviyeleri ile DMFT indeksi, DT, MT, FT arasında istatistiksel olarak anlamlı bir ilişki saptanmamıştır (p>0,05). Kadınların erkeklerden daha anksiyetik olması kültürel farklılıklara bakılmaksızın kadınların anksiyete, korku, endişe ve diğer kaygılarını erkeklere göre daha rahat ifade edebiliyor olmalarıyla açıklanabilir. Yaptığımız araştırmada yaşanılan depremin dental korku seviyeleri üzerine herhangi bir etkisi olmadığı görülmüştür. Ayrıca kişilerin ağız sağlığı ile dental korku seviyeleri arasında bir ilişki saptanmamıştır. Anahtar Kelimeler: Dental anksiyete, DMFT, DAS.
LSI+61303 in the context of microquasars
Creators: name: Massi, Maria
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: LSI+61303 is one of the most observed Be/X-ray binary systems because, peculiarly, it has periodical radio and X-ray emission together with strong, variable gamma-ray emission. This source remains, however, quite enigmatic. Some properties of this system can be explained assuming that the unseen companion is a non-accreting young pulsar with a relativistic wind strongly interacting with the wind of the Be star. On the contrary, other properties of LSI+61303 fit a model where the companion is accreting even with two events of super-critical accretion along the orbit. The very recent discovery of a radio jet extending ca. 200 AU at both sides of a central core has definitely proved the occurrence of accretion--ejection processes in this system. Therefore it is of great interest to combine this result with previous observations at other wavelengths within the framework of the two-peak accretion (ejection) model. Concerning the first ejection, we show that the observed gamma-rays variations might be periodic with outbursts confined around the periastron passage (i.e. where the first accretion-rate peak occurs and high-energy emission but no radio emission is predicted). Concerning the second ejection, with radio bursts, we point out that it can be also traced in the X-ray data, both in episodes of hardening of the X-ray emission and in a transition from soft- to hard-states at the onsets of radiobursts. In fact, both hardening and transitions between spectral states are related to the dramatic change in the structure of the accretion disk preceeding the ejection. Finally, we explore the nature of the accretor and we conclude that on the basis of the present optical data a black hole cannot be ruled out.
description: accepted for publication in Astronomy & Astrophysics