cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
HOG PRODUCTION IN CHINA: TECHNOLOGICAL BIAS AND FACTOR DEMAND
Creators: name: Ma, Hengyun
name: Rae, Allan N.
name: Ma, Hengyun
name: Rae, Allan N.
Publisher: name: Unknown
Year: 2004
Subjects: Production Economics

description: China's agricultural output has expanded rapidly since the economic reforms of the late 1970s, reflecting both productivity growth and mobilization of inputs. Over the same period, increased consumption of livestock products has been a feature of China's food consumption. Widely different projections of China's demand for feedgrains to feed its expanding livestock sector have motivated this research. Productivity growth is an important component of such projections, but past estimates have been controversial, few focus on livestock, and we are aware of none that examine technological bias in China's livestock production. For example, does the nature of technical progress lead to increased or reduced use of feedgrains relative to other inputs? A feature of China's livestock sector is rapid structural change towards larger and more commercial and intensive production systems. As specialization has developed over the last two decades, the share of backyard livestock production has declined and the shares of specialized households and commercial enterprises have increased. We measure technological change and biases for each of these structures so that this information can be eventually combined with that on structural change when making feedgrain demand projections. Our commodity focus in this paper is on hog production, which is the major consumer of feedgrains in China. We use a translog cost function and adjusted livestock data to estimate technological change and biases. Technical change has not been neutral, and the bias towards feedgrain-saving was found to be statistically significant. We also find that the demand for feedgrains is elastic with respect to its own price and that strong substitution relationships exist with respect to some other inputs. Thus input price changes are important, along with technological biases, in changing the feedgrain input shares to hog production.
Stella cadente in technicolor
Creators: Paolo Soletta
Publisher: name: Media Inaf
Year: 2021

L’immagine astronomica del giorno di ieri, martedì 2 febbraio, è una meteora delle Quadrantidi immortalata dal fotografo americano Frank Kuszaj all’inizio di gennaio. A renderla unica, le sfumature colorate – colte dalla macchina fotografica – dovute agli elementi ionizzati rilasciati durante la disintegrazione in atmosfera
Da Catania un tomografo muonico per i container
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2021

Realizzato un prototipo in grado di determinare la posizione in 3D di un piccolo blocco di piombo. Sostituendo gli attuali fotosensori con fotomoltiplicatori al silicio di nuova generazione, già disponibili sul mercato, potrebbe essere impiegato dalle autorità portuali per rilevare l’eventuale presenza di materiale radioattivo
Some Statistical Mechanical Properties of Photon Black Holes
Creators: name: Hernandez, X.
name: Lopez-Monsalvo, C. S.
name: Mendoza, S.
name: Sussman, R. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that if the total internal energy of a black hole is constructed as the sum of $N$ photons all having a fixed wavelength chosen to scale with the Schwarzschild radius as $λ=αR_{s}$, then $N$ will scale with $R_{s}^{2}$. A statistical mechanical calculation of the configuration proposed yields (α= 4 π^2 / \ln(2)) and a total entropy of the system $S=k_{B}N \ln(2)$, in agreement with the Bekenstein entropy of a black hole . It is shown that the critical temperature for Bose-Einstein condensation for relativistic particles of $λ=αR_{s}$ is always well below the Hawking temperature of a black hole, in support of the proposed internal configuration. We then examine our results from the point of view of recent loop quantum gravity ideas and find that a natural consistency of both approaches appears. We show that the Jeans criterion for gravitational instability can be generalised to the special and general relativistic regimes and holds for any type of mass--energy distribution.
description: 7 pages, 1 figure. Added discussion on relativistic Jeans criterion and a more formal statistical mechanical treatment. Accepted for publication in the Revista Mexicana de Fisica
Backreaction: un buco nero nella vasca da bagno
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2021

Grazie al parallelismo sperimentale fra un buco nero e un vortice di scarico in una vasca, un team di ricercatori del Regno Unito ha dimostrato la misurabilità del fenomeno della “backreaction”, simulato attraverso una serie di onde monocromatiche superficiali che attraversano il vortice d’acqua. I risultati potrebbero avere implicazioni sperimentali e teoriche importanti per indagare in laboratorio fenomeni astrofisici estremi, come l’evaporazione dei buchi neri
Inspiration4, un biglietto per lo spazio
Creators: Giuseppe Fiasconaro
Publisher: name: Media Inaf
Year: 2021

SpaceX ha annunciato il lancio di Inspiration4, la prima missione al mondo a portare in orbita attorno alla Terra un equipaggio costituito interamente da civili. Due dei quattro posti verranno sorteggiati tra i partecipanti a un’estrazione pubblica
Quantum Hydrodynamics, Quantum Benjamin-Ono Equation, and Calogero Model
Creators: name: Abanov, Alexander G.
name: Wiegmann, Paul B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: Collective field theory for Calogero model represents particles with fractional statistics in terms of hydrodynamic modes -- density and velocity fields. We show that the quantum hydrodynamics of this model can be written as a single evolution equation on a real holomorphic Bose field -- quantum integrable Benjamin-Ono equation. It renders tools of integrable systems to studies of nonlinear dynamics of 1D quantum liquids.
description: 5 pages, 1 figure
A forward-modelling method to infer the dark matter particle mass from strong gravitational lenses
Creators: name: He, Qiuhan
name: Robertson, Andrew
name: Nightingale, James
name: Cole, Shaun
name: Frenk, Carlos S.
name: Massey, Richard
name: Amvrosiadis, Aristeidis
name: Li, Ran
name: Cao, Xiaoyue
name: Etherington, Amy
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A fundamental prediction of the cold dark matter (CDM) model of structure formation is the existence of a vast population of dark matter haloes extending to subsolar masses. By contrast, other dark matter models, such as a warm thermal relic (WDM), predict a cutoff in the mass function at a mass which, for popular models, lies approximately between $10^7$ and $10^{10}~{\rm M}_\odot$. We use mock observations to demonstrate the viability of a forward modelling approach to extract information about low-mass dark haloes lying along the line-of-sight to galaxy-galaxy strong lenses. This can be used to constrain the mass of a thermal relic dark matter particle, $m_\mathrm{DM}$. With 50 strong lenses at Hubble Space Telescope resolution and a maximum pixel signal-to-noise ratio of $\sim50$, the expected median 2$σ$ constraint for a CDM-like model (with a halo mass cutoff at $10^{7}~{\rm M}_\odot$) is $m_\mathrm{DM} > 4.10 \, \mathrm{keV}$ (50% chance of constraining $m_{\rm DM}$ to be better than 4.10 keV). If, however, the dark matter is a warm particle of $m_\mathrm{DM}=2.2 \, \mathrm{keV}$, our 'Approximate Bayesian Computation' method would result in a median estimate of $m_\mathrm{DM}$ between 1.43 and 3.21 keV. Our method can be extended to the large samples of strong lenses that will be observed by future telescopes, and could potentially rule out the standard CDM model of cosmogony. To aid future survey design, we quantify how these constraints will depend on data quality (spatial resolution and integration time) as well as on the lensing geometry (source and lens redshifts).
description: Accepted by MNRAS. Comments welcome
Un Cubesat tutto di legno, o quasi
Creators: Claudia Mignone
Publisher: name: Media Inaf
Year: 2021

Ancora in via di definizione i materiali che saranno usati per costruire il satellite giapponese Lignosat, la prima sonda spaziale realizzata principalmente in legno, il cui lancio è previsto per il 2023. Ne parliamo con uno degli esperti coinvolti, il professor Yosuke Alexandre Yamashiki dell'Università di Kyoto
Quel giovane ammasso nel Cane maggiore
Creators: Marco Galliani
Publisher: name: Media Inaf
Year: 2021

L'ammasso stellare aperto Ngc 2362, composto da stelle molto giovani, è visibile già con l'ausilio di un binocolo nei cieli serali di febbraio. I consigli per osservarlo, insieme ai principali pianeti, costellazioni e fenomeni previsti questo mese
Microorganisms and deterioration of artistic and historical substrate of cultural heritage
Creators: name: Aliasghari, Azam
name: Mohammadi, Parisa
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Antiquities and monuments are represents of the culture, civilization and historical background of a country and can be very effective in economic growth and development of countries. It is very important to protect these monuments and if not to be noticed, will be causes serious and irreversible destruction. In recent years, chemical and physical factors also biological factors are introduced as very important and effective factors in biodeterioration. The issue of biodeterioration is one of the problems that cultural heritage always faced to it. Biodeterioration is an irreversible damage caused by microorganisms against archaeological sites. This worldwide problem, resulting to the physical and chemical damage in historical/ archaeological substrates and artworks. The role of various microorganisms has been proven in the erosion of a variety of artistic and historical substrate, including paintings, stone works, ceramics, paper documents and books, wood, textiles and films. The first step in controlling microbial deterioration of monuments is to identify deteriorating microorganisms and to know their mechanisms in the deterioration of archaeological substrates and artworks. This subject provides a valuable information for restorators and researchers in choosing the most appropriate methods for the prevention, control and treatment of damage on substrates. This article is an overview to introduce the most important microorganisms and to know their mechanisms of microbial deterioration of various historical and artistic substrates.
Absolute Calibration of the Infrared Array Camera on the Spitzer Space Telescope
Creators: name: Reach, William T.
name: Megeath, S. T.
name: Cohen, Martin
name: Hora, J.
name: Carey, Sean
name: Surace, Jason
name: Willner, S. P.
name: Barmby, P.
name: Wilson, Gillian
name: Glaccum, William
name: Lowrance, Patrick
name: Marengo, Massimo
name: Fazio, Giovanni G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Infrared Array Camera (IRAC) on the Spitzer Space Telescope is absolutely calibrated by comparing photometry on a set of A stars near the north ecliptic pole to predictions based on ground-based observations and a stellar atmosphere model. The brightness of point sources is calibrated to an accuracy of 3%, relative to models for A star stellar atmospheres, for observations performed and analyzed in the same manner as the calibration stars. This includes corrections for location of the star in the array and the location if the centroid within the peak pixel. Long-term stability of the IRAC photometry was measured by monitoring the brightness of A dwarfs and K giants (near the north ecliptic pole) observed several times per month; the photometry is stable to 1.5% (rms) over a year. Intermediate-time-scale stability of the IRAC photometry was measured by monitoring at least one secondary calibrator (near the ecliptic plane) every 12 hr while IRAC is in nominal operations; the intermediate-term photometry is stable with a 1% dispersion (rms). One of the secondary calibrators was found to have significantly time-variable (5%) mid-infrared emission, with period (7.4 days) matching the optical light curve; it is possibly a Cepheid variable.
description: accepted to PASP; 7/7/05: fixed mistake on page 17 (extended source corrections must be multiplied not divided)
L’alone oscuro di un’antica galassia nana
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2021

In base a un nuovo studio pubblicato oggi su Nature Astronomy, la piccola e ultra-debole galassia nana Tucana II, a 163mila anni luce dalla Terra, possiede un alone di materia oscura da tre a cinque volte più massiccio di quanto era stato stimato in precenza. La configurazione unica di Tucana II suggerisce che potrebbe trattarsi di un esempio, forse il più antico, di cannibalismo galattico
proEVA - Replication Package
Creators: name: Pan, Shengyi
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 461201
subject: Automated software engineering

description: This repository contains code (in code.zip) and datasets related to proEVA.
Towards More Practical Automation of Vulnerability Assessment

Shengyi Pan, Lingfeng Bao, Jiayuan Zhou, Xing Hu, Xin Xia, Shanping LiICSE 2024
We provide a README.md that explains the usage of each file and the requirements to run the code.
Quid ultra? Incontri con la scienza di frontiera
Creators: Elisa Nichelli
Publisher: name: Media Inaf
Year: 2021

A partire dal 2 febbraio, per tutto il 2021, una serie di seminari online organizzati dalla Sapienza per approfondire i temi più controversi e di frontiera della ricerca in campo astrofisico. «Peccato non poterli fare in presenza, ma rimane un’occasione unica», dice Angelo Antonelli, direttore dell’Osservatorio astronomico dell’Inaf di Roma
Tutti debunker con il concorso dell’Infn
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2021

L’invito è rivolto alle ragazze e ai ragazzi che frequentano le scuole superiori o l’ultimo anno delle scuole medie: scovare esempi di errori di fisica nelle canzoni, nel cinema, nella letteratura e nell’arte. E descriverli in tre prove: un testo, un meme e un video. Si può partecipare anche in gruppo, e in palio ci sono kit scientifici per ogni classe di concorso
Penetration of external field into regular and random arrays of nanotubes: Implications for field emission
Creators: name: Sedrakyan, T. A.
name: Mishchenko, E. G.
name: Raikh, M. E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop an analytical theory of polarization of a vertically aligned array of carbon nanotubes (NTs) in external electric field. Such arrays are commonly utilized in field-emission devices, due to the known electrostatic effect of strong field enhancement near the tip of an individual NT. A small ratio of the NT radius to the separation between neighboring NTs allows us to obtain asymptotically exact solution for the distribution of induced charge density along the NT axes. For a regular array, this solution allows us to trace the suppression of the field penetration with increasing the density of NTs in the array. We demonstrate that for a random array, fluctuations in the NT density terminate the applicability of our result at distances from the NT tips much larger than the field penetration depth, where the induced charge density is already exponentially small. Our prime conclusion is that, due to collective screening of the external field by the array, the field-emission current decreases drastically for dense arrays compared to an individual NT. We argue that the reason why the strong field emission, described by the Fowler-Nordheim law and observed in realistic arrays, is the strong dispersion in heights of the constituting NTs.
description: 10 pages, 2 figures; published version, minor changes
Measuring subnational democracy: toward improved regime typologies and theories of regime change
Creators: name: McMann, Kelly M.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Science Policy

description: Social scientists have been limited in their work by the paucity of global time series data about subnational institutions and practices. Such data could help scholars refine regime typologies, improve theories of democratization and regime change, better understand subnational democracy, and illuminate issues of development, conflict, and governance. This article addresses the lack of data by introducing 22 subnational measures from a new dataset, Varieties of Democracy. Validity tests demonstrate that the measures’ strengths outweigh their weaknesses. The measures excel in covering all subnational levels for most countries, capturing different elements of subnational elections, and including a variety of dimensions of elections and civil liberties. The measures also offer unmatched global and temporal coverage. The article demonstrates how these strengths can provide scholars with the benefits described above.
Phase Transitions in the NMSSM
Creators: name: Funakubo, Koichi
name: Tao, Shuichiro
name: Toyoda, Fumihiko
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study phase transitions in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) with the weak scale vacuum expectation values of the singlet scalar, constrained by Higgs spectrum and vacuum stability. We find four different types of phase transitions, three of which have two-stage nature. In particular, one of the two-stage transitions admits strongly first order electroweak phase transition, even with heavy squarks. We introduce a tree-level explicit CP violation in the Higgs sector, which does not affect the neutron electric dipole moment. In contrast to the MSSM with the CP violation in the squark sector, a strongly first order phase transition is not so weakened by this CP violation.
description: 21 pages, 8 figures
Counting hyperbolic manifolds with bounded diameter
Creators: name: Young, Robert
Publisher: name: arXiv
Year: 2006
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 57N16 (Primary) 22E40 (Secondary)

description: Let $ρ_n(V)$ be the number of complete hyperbolic manifolds of dimension n with volume less than $V$. Burger, Gelander, Lubotzky, and Moses showed that when n>3 there exist a,b>0 depending on the dimension such that aV log(V) < log(ρ_n(V)) < bV log(V), for V >> 0. In this note, we use their methods to bound the number of hyperbolic manifolds with diameter less than d and show that the number grows double-exponentially. Additionally, this bound holds in dimension 3.
description: 4 pages
Towards Semantic Detection of Smells in Cloud Infrastructure Code
Creators: name: Kumara, Indika
name: Vasileiou, Zoe
name: Meditskos, Georgios
name: Tamburri, Damian A.
name: Heuvel, Willem-Jan Van Den
name: Karakostas, Anastasios
name: Vrochidis, Stefanos
name: Kompatsiaris, Ioannis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Automated deployment and management of Cloud applications relies on descriptions of their deployment topologies, often referred to as Infrastructure Code. As the complexity of applications and their deployment models increases, developers inadvertently introduce software smells to such code specifications, for instance, violations of good coding practices, modular structure, and more. This paper presents a knowledge-driven approach enabling developers to identify the aforementioned smells in deployment descriptions. We detect smells with SPARQL-based rules over pattern-based OWL 2 knowledge graphs capturing deployment models. We show the feasibility of our approach with a prototype and three case studies.
description: 5 pages, 6 figures. The 10 th International Conference on Web Intelligence, Mining and Semantics (WIMS 2020)
Signs, Spin, SMEFT: Sum Rules at Dimension Six
Creators: name: Remmen, Grant N.
name: Rodd, Nicholas L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We place theoretical constraints on the leading deviations to four-fermion standard model interactions. Invoking S-matrix analyticity and partial wave unitarity, we develop new dispersion relations that yield either spin-dependent sum rules on dimension-six fermionic operators or information about the amplitude's behavior at large momentum. The pattern of SMEFT inequalities we find for theories obeying certain large-momentum constraints enables a diagnosis of properties of emerging new physics. These relations form a bridge between new physics searches: discovery of flavor-violating $τ$ decays at Belle II would motivate the search for flavor-conserving new physics below 25 TeV, as the results would provide definitive information about the UV.
description: 10 pages, updated to published version
A proposal for improving the meal provisioning process at Canadian Airlines
Creators: name: Morency, Vincent
Publisher: name: University of British Columbia
Year: 2009

description: Catering flights is an important part of an airline's operations. The meal service has a critical impact on customer service quality and represents significant costs. Unfortunately, due to high passenger load variability and minimum production lead-time requirements, it is difficult to get the number of meals to exactly match the passenger count on each flight. The objective of the project is to reduce meal-catering costs due to over-catering while simultaneously improving service level by reducing under-catering. The proposed solution takes the form of a meal bank system. This concept suggests that flights should be systematically under-catered with the possibility of uploading a generic meal to fill in any shortage at the last minute when the final passenger load is known. A thorough investigation of current processes was carried in order to define and recommend process change based on the meal bank approach. The project concludes with a costing analysis of recommended solutions weighing additional investments, cost savings, and service improvement against current performance. Costing analysis results for Vancouver International Airport operations showed that service level could be improved by an approximate reduction of 50 percent in revenue passenger meal shortages. Also, net costs can be reduced up to an estimated $190,000 annually.
Creating and probing long-range order in atomic clouds
Creators: name: von Cube, C.
name: Slama, S.
name: Kohler, M.
name: Zimmermann, C.
name: Courteille, Ph. W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Ultracold atoms interacting with the optical modes of a high-Q optical ring cavity can synchronize their motion. The collective behavior makes the system interesting for quantum computing applications. This paper is devoted to the study of the collective coupling. We report on the first observation of a collective dynamics and on the realization of a laser, the gain mechanism of which is based on collective atomic recoil. We show that, if the atoms are subject to a friction force, starting from an unordered distribution they spontaneously form a moving density grating. Furthermore, we demonstrate that a 1D atomic density grating can be probed via Bragg scattering. By heterodyning the Bragg-reflected light with a reference beam, we obtain detailed information on phase shifts induced by the Bragg scattering process.
Occupational exposure of pharmacy technicians and cleaning staff to cytotoxic drugs in Dutch hospitals
Creators: name: Crul, Mirjam
name: Hilhorst, Simone
name: Breukels, Oscar
name: Bouman-D’Onofrio, Johanna R. C.
name: Stubbs, Percival
name: Rooij, Joost G. Van
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Many studies into surface contamination of hospital environments have demonstrated that occupational exposure to cytotoxics through the dermal route remains a possible risk. In this study, we assess the actual dermal exposure of the hands of pharmacy technicians and cleaning personnel in a panel of hospitals performing tasks that pose a risk of exposure. We compare the dermal exposure to a tentative limit value for cyclophosphamide. Pharmacy technicians and cleaning personnel were asked for hand rinsing after performance of nine tasks previously identified as posing a risk of occupational exposure. All samples were analyzed for the presence and quantity of eight antineoplastic drugs. By using data on both the frequency of the performance of the tasks and the measured dermal contamination during these tasks, weekly exposure to the marker drug (cyclophosphamide) was calculated. In five Dutch hospitals, 70 hand rinse samples and 8 blanks were collected. These were analyzed and results were used to calculate weekly exposure. The tentative limit value used was 0.74 µg of cyclophosphamide. For cleaning personnel, all results remained below this threshold value. For pharmacy technicians, the compounding itself also remained well below the limit; however, the task involving preparatory work, as well as the checking of compounded drugs, had a 13% chance of exceeding the limit. All of the highest values were found when employees were not wearing gloves on these tasks. Cleaning personnel and pharmacy technicians compounding cytotoxic drugs in our study were sufficiently protected from occupational exposure. In contrast, pharmacy technicians who perform preparatory and finishing tasks (before and after the actual compounding) are not protected enough when they do not wear gloves.
Energy relaxation due to magnetic impurities in mesoscopic wires: Logarithmic approach
Creators: name: Ujsaghy, O.
name: Jakovac, A.
name: Zawadowski, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The transport in mesoscopic wires with large applied bias voltage has recently attracted great interest by measuring the energy distribution of the electrons at a given point of the wire, in Saclay. In the diffusive limit with negligible energy relaxation that shows two sharp steps at the Fermi energies of the two contacts, which are broadened due to the energy relaxation. In some of the experiments the broadening is reflecting an anomalous energy relaxation rate proportional to $E^{-2}$ instead of $E^{-3/2}$ valid for Coulomb electron-electron interaction, where $E$ is the energy transfer. Later it has been suggested that such relaxation rate can be due to electron-electron interaction mediated by Kondo impurities. In the present paper the latter is systematically studied in the logarithmic approximation valid above the Kondo temperature. In the case of large applied bias voltage Kondo resonances are formed at the steps of the distribution function and they are narrowed by increasing the bias. An additional Korringa energy broadening occurs for the spins which smears the Kondo resonances, and the renormalized coupling can be replaced by a smooth but essentially enhanced average coupling (factor of 8-10). Thus the experimental data can be described by formulas without logarithmic Kondo corrections, but with enhanced coupling. In certain regions of large bias, that averaged coupling depends weakly on the bias. In those cases the distribution function depends only on the ratio of the electron energy and the bias, showing scaling behavior. The impurity concentrations estimated from those experiments and other dephasing experiments can be very different, and a possible explanation considering the surface spin anisotropy due to strong spin-orbit interaction is the subject of our earlier paper.
description: 12 pages, RevTex4
Orientation of quantum Cayley trees and applications
Creators: name: Vergnioux, Roland
Publisher: name: arXiv
Year: 2020
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics

description: We introduce the quantum Cayley graphs associated to quantum discrete groups and study them in the case of trees. We focus in particular on the notion of quantum ascending orientation and describe the associated space of edges at infinity, which is an outcome of the non-involutivity of the edge-reversing operator and vanishes in the classical case. We end with applications to Property AO and K-theory.
description: 41 pages ; late posting of an old article
Analytical and synthesis details from Determination of ω-end functionalities in tailored poly(2-alkyl-2-oxazoline)s by liquid chromatography and mass spectrometry
Creators: name: Engel, Nora
name: Dirauf, Michael
name: Czaplewska, Justyna
name: Nischang, Ivo
name: Gottschaldt, Michael
name: Schubert, Ulrich S.
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 340199
subject: Analytical chemistry not elsewhere classified
classificationCode: 340399
subject: Macromolecular and materials chemistry not elsewhere classified
classificationCode: 340503
subject: Organic chemical synthesis

description: The in-depth analytical characterization of polymers, in particular regarding intended biomedical applications, is becoming increasingly important to elucidate their structure–property relationships. Specifically, end group analysis of, e.g. polymers featuring a ‘stealth effect’ towards the immune system is of particular importance because of their use in coupling reactions to bioactive compounds. Herein, we established a liquid chromatography (LC) protocol to analyse bicyclo[6.1.0]nonyne-functionalised poly(2-alkyl-2–oxazoline)s (POx)s as promising functional polymers that can be applied in strain-promoted click reactions. This work involved the synthesis of poly(2-methyl-2-oxazoline) (PMeOx) and poly(2-ethyl-2-oxazoline) (PEtOx) by living cationic ring-opening polymerization (CROP) with different molar masses ranging from 2 up to 17.5 kDa and, to our knowledge, the first liquid chromatographic analysis of PMeOx. The developed analytical protocol enables the quantitative determination of post-polymerization reaction sequences with respect to the conversion of the ω-end groups. All synthesized polymers were straightforwardly analysed on a C18-derivatized silica monolithic column under reversed-phase chromatographic conditions with a binary mobile phase gradient comprising a mixture of acetonitrile and water. Subsequent mass spectrometry of collected elution fractions enabled the confirmation of the desired ω-end group functionalities and the identification of synthetic by-products.
PUBLIC APPROVAL OF PLANT AND ANIMAL BIOTECHNOLOGY IN KOREA: AN ORDERED PROBIT ANALYSIS
Creators: name: Hallman, William K.
name: Onyango, Benjamin M.
name: Govindasamy, Ramu
name: Jang, Ho-Min
name: Puduri, Venkata S.
name: Hallman, William K.
name: Onyango, Benjamin M.
name: Govindasamy, Ramu
name: Jang, Ho-Min
name: Puduri, Venkata S.
Publisher: name: Unknown
Year: 2004
Subjects: Research and Development/Tech Change/Emerging Technologies

description: This study analyzes predictors of Korean public acceptance of the use of biotechnology to create genetically modified food products. Results indicate that the consumers with above average knowledge of specific outcomes of genetic modification were more likely than those with inaccurate or no knowledge to approve use of plant or animal genetic modification for the creation of new food products. Young South Koreans consumers (ages 20 to 29 years old) were more likely than old consumers (ages 50 to 59) to approve use of biotechnology to create both plant and animal based foods. Further, those Koreans in favor of GM labeling were less likely to approve the use of biotechnology for the creation of food products. The results also suggest that public trust and confidence on various institutions associated with biotechnology is critical for the future of the technology. There was some evidence of differential biotechnology approval among consumers of different residential areas, income levels and political affiliation. Thus, those in cities, those with incomes above 40 million Won, and of liberal political affiliation were found to be more approving of animal biotechnology.
title: Безопасность жизнедеятельности. Микроклимат
Creators: name: ELS IPR BOOKS
Publisher: name: Вузовское образование
Year: 2021

description: В данном учебном пособии изложены основные понятия и определения по разделу «Микроклимат» дисциплины «Безопасность жизнедеятельности». Приводится классификация основных видов микроклимата, характеристики и параметры различных систем микроклимата, определяются факторы их воздействия на организм человека. Указываются способы расчета параметров микроклимата в производственных и жилых помещениях и их нормы. Рассматриваются возможные мероприятия по оздоровлению воздушной среды с целью обеспечения безопасности работающих. Подготовлено в соответствии с требованиями Федерального государственного образовательного стандарта высшего образования и предназначено для студентов направлений подготовки 11.03.01 «Радиотехника», 11.03.02 «Инфокоммуникационные технологии и системы связи», 09.03.01 «Информатика и вычислительная техника», 09.03.02 «Информационные системы и технологии». Может использоваться студентами-бакалаврами других направлений подготовки, изучающими данную дисциплину.
Generalized KdV-type equations versus Boussinesq's equations for uneven bottom -- numerical study
Creators: name: Karczewska, Anna
name: Rozmej, Piotr
Publisher: name: arXiv
Year: 2020
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The paper's main goal is to compare the motion of solitary surface waves resulting from two similar but slightly different approaches. In the first approach, the numerical evolution of soliton surface waves moving over the uneven bottom is obtained using single wave equations. In the second approach, the numerical evolution of the same initial conditions is obtained by the solution of a coupled set of the Boussinesq equations for the same Euler equations system. We discuss four physically relevant cases of relationships between small parameters $α,β,δ$. For the flat bottom, these cases imply the Korteweg-de Vries equation (KdV), the extended KdV (KdV2), fifth-order KdV (KdV5), and the Gardner equation (GE). In all studied cases, the influence of the bottom variations on the amplitude and velocity of a surface wave calculated from the Boussinesq equations is substantially more significant than that obtained from single wave equations.
description: 16 pages, 38 figures. Several misprints and references corrected
First Law of Thermodynamics and Friedmann Equations of Friedmann-Robertson-Walker Universe
Creators: name: Cai, Rong-Gen
name: Kim, Sang Pyo
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Applying the first law of thermodynamics to the apparent horizon of a Friedmann-Robertson-Walker universe and assuming the geometric entropy given by a quarter of the apparent horizon area, we derive the Friedmann equations describing the dynamics of the universe with any spatial curvature. Using entropy formulae for the static spherically symmetric black hole horizons in Gauss-Bonnet gravity and in more general Lovelock gravity, where the entropy is not proportional to the horizon area, we are also able to obtain the Friedmann equations in each gravity theory. We also discuss some physical implications of our results.
description: LaTex 15 pages, no figure
Particle scattering in a sonic analogue of special relativity
Creators: name: Todd, Scott L.
name: Pantaleoni, Giacomo
name: Baccetti, Valentina
name: Menicucci, Nicolas C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate a simple toy model of particle scattering in the flat spacetime limit of an analogue-gravity model. The analogue-gravity medium is treated as a scalar field of phonons that obeys the Klein-Gordon equation and thus admits a Lorentz symmetry with respect to $c_\mathrm{s}$, the speed of sound in the medium. The particle from which the phonons are scattered is external to the system and does not obey the sonic Lorentz symmetry that the phonon field obeys. In-universe observers who use the exchange of sound to operationally measure distance and duration find that the external particle appears to be a sonically Lorentz-violating particle. By performing a sonic analogue to Compton scattering, in-universe observers can determine if they are in motion with respect to their medium. If in-universe observers were then to correctly postulate the dispersion relation of the external particle, their velocity with respect to the medium could be found.
description: 23 pages, 7 figures; updated manuscript to reflect published version (changed title, corrected typos, updated references)
MEASURING U.S. CONSUMER PREFERENCES FOR GENETICALLY MODIFIED FOODS USING CHOICE MODELING EXPERIMENTS: THE ROLE OF PRICE, PRODUCT BENEFITS AND TECHNOLOGY
Creators: name: Onyango, Benjamin M.
name: Govindasamy, Ramu
name: Nayga, Rodolfo M.
name: Onyango, Benjamin M.
name: Govindasamy, Ramu
name: Nayga, Rodolfo M.
Publisher: name: Unknown
Year: 2004
Subjects: Research and Development/Tech Change/Emerging Technologies

description: Food biotechnology promises to deliver a wide range of enhanced consumer benefits. This study models consumer's willingness to trade-off the potential risks of GM foods with the possibility of extracting significant benefits. The results of the choice modeling experiments reflect how different attributes of price, product benefits, and technology influence consumer demand for genetically modified food products. The results suggest that direct health, environmental, and production related benefits have a positive effect on choice. The results also generally show that genetic modification is viewed negatively, with use of bacterium and animal based genetic modification being viewed more negatively than the use of plant based genetic modification.
Electronic Properties of Graphene Quantum Ring with Wedge Disclination
Creators: name: Belouad, Abdelhadi
name: Jellal, Ahmed
name: Bahlouli, Hocine
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the energy spectrum and persistent current of charge carriers confined in a graphene quantum ring geometry of radius $R$ and width $w$ subjected to a magnetic flux. We consider the case where the crystal symmetry is locally modified by replacing a hexagon by a pentagon, square, heptagon or octagon. To model this type of defect we include appropriate boundary conditions for the angular coordinate. The electrons are confined to a finite width strip in radial direction by setting infinite mass boundary conditions at the edges of the strip. The solutions are expressed in terms of Hankel functions and their asymptotic behavior allows to derive quantized energy levels in the presence of an energy gap. We also investigate the persistent currents that appear in the quantum ring and how wedge disclination influences different quantum transport quantities.
description: 14 pages, 7 figures
A new Interatheriinae (Mammalia, Notoungulata) from the Cerro Boleadoras Formation (Santa Cruz, Argentina) and the evolution of the tarsus within the lineage during the Miocene
Creators: name: Vera, Bárbara
name: Scarano, Alejo C.
name: Reguero, Marcelo A.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Interatheres (Interatheriinae; Notoungulata) from the Cerro Boleadoras Formation, north-west of Santa Cruz Province (Argentina) are described here for the first time. Boleatherium praeludium gen. et sp. nov. is described from a partial skeleton and is characterized by a singular combination of exclusive characters (p1 longer than p2, p3 and p4; lingual trigonid–talonid contact in p2 − 4 and m2 − 3), ancestral features (p2 longer than the p3 and p4, with well-developed talonid), and derived traits (triangular talonid, short trigonid–talonid contact in lower molars). In the Cerro Boleadoras fauna, we also recognize Protypotherium aff. colloncurensis (upper and lower dentition, and limb bones), Interatheriinae gen. sp. A (lower molars) comparable to P. cf. P. endiadys, and Interatheriinae gen. sp. B (tarsal bones) comparable to P. colloncurensis. The configuration of tarsal bones of B. praeludium and Protypotherium aff. colloncurensis reveals an intermediate evolutionary stage between the foot of early Miocene representatives (e.g. P. australe) and the foot of late Miocene members (e.g. Miocochilius anomopodus). In terms of phylogenetic relationships, B. praeludium forms a polytomy with Caenophilus tripartitus, Juchuysillu arenalesensis, Protypotherium sinclairi and Miocochilius federicoi, which is supported by three synapomorphies. The interathere assemblage described from the Cerro Boleadoras Formation: (1) increases the known diversity of Interatheriinae for the Miocene of southern Patagonia; (2) contributes to the distinctive endemicity of the Cerro Boleadoras fauna with the recognition of a new taxon; (3) supports a Burdigalian − Langhian age for the Cerro Boleadoras fauna based on its taxonomic composition and published dating near the base of the formation; and (4) illuminates the evolutionary changes related to foot into the Interatheriinae lineage during the Miocene. http://zoobank.org/urn:lsid:zoobank.org:pub:71EBFBAC-CC67-48F9-8DF2-D075921CA1FC
Three-jet event-shapes in lepton-proton scattering at next-to-leading order accuracy
Creators: name: Nagy, Z.
name: Trocsanyi, Z.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the differential distributions of two three-jet event-shape observables at the next-to-leading order accuracy at fixed values of the DIS kinematic variables. The observable $\Kout$ measures the out-of-event-plane momentum. The other observable $y_3$ is the maximum value of the $\ycut$ resolution variable for which an event is classified as three-jet event. We also show the dependence of the fixed-order predictions on the renormalisation and factorisation scales. The radiative corrections are in general large and depend on the value of the DIS kinematic range.
description: 11 pages, 6 figures, minor modifications and corrections, version accepted for publication
A consistent and conservative Phase-Field method for multiphase incompressible flows
Creators: name: Huang, Ziyang
name: Lin, Guang
name: Ardekani, Arezoo M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A consistent and conservative Phase-Field method, including both the model and scheme, is developed for multiphase flows with an arbitrary number of immiscible and incompressible fluid phases. The consistency of mass conservation and the consistency of mass and momentum transport are implemented to address the issue of physically coupling the Phase-Field equation, which locates different phases, to the hydrodynamics. These two consistency conditions provide the ``optimal'' coupling because (i) the new momentum equation resulting from them is Galilean invariant and implies the kinetic energy conservation, regardless of the details of the Phase-Field equation, and (ii) failures of satisfying the second law of thermodynamics or the consistency of reduction of the multiphase flow model only result from the same failures of the Phase-Field equation but are not due to the new momentum equation. Physical interpretation of the consistency conditions and their formulations are first provided, and general formulations that are obtained from the consistency conditions and independent of the interpretation of the velocity are summarized. Several novel techniques are developed to inherit the physical properties of the multiphase flows after discretization, including the gradient-based phase selection procedure, the momentum conservative method for the surface force, and the general theorems to preserve the consistency conditions on the discrete level. Equipped with those novel techniques, a consistent and conservative scheme for the present multiphase flow model is developed and analyzed. Numerical applications demonstrate that the present model and scheme are robust and effective in studying complicated multiphase dynamics, especially for those with large-density ratios.
description: This is an accepted manuscript
CONSUMER ACCEPTANCE OF GENETICALLY MODIFIED FOODS: ROLE OF PRODUCT BENEFITS AND PERCEIVED RISKS
Creators: name: Onyango, Benjamin M.
name: Onyango, Benjamin M.
Publisher: name: Unknown
Year: 2003
Subjects: Consumer/Household Economics

description: This study examines consumer willingness to consume genetically modified food products with clearly stated benefits and risks. Results suggest that male; white, Southerners, and those with some college education are more likely to consume genetically modified fruits and vegetables. Trust in government, biotech industry, and medical professional on matters relating GM foods also have a positive impact on the willingness to consume GM foods; such trust allays fears associated with risks posed by GM technology. Conversely, risk seems to negatively influence the willingness to consume GM products. Once the respondents are well informed of the risk of the product, this greatly diminished their willingness to consume such products. Older respondents (age above 55 years), those taking time to read food labels, and those with either high or low score on actual knowledge of GM based on a simple scientific quiz, are less enthusiastic toward GM foods. Income, religion and political affiliation did not play any significant role on influencing the willingness to consume GM fresh fruits and vegetables.