cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Giant Metrewave Radio Telescope/Chandra view of IRAS 09104+4109: A type 2 QSO in a cooling flow
Creators: name: O'Sullivan, Ewan
name: Giacintucci, Simona
name: Babul, Arif
name: Raychaudhury, Somak
name: Venturi, Tiziana
name: Bildfell, Chris
name: Mahdavi, Andisheh
name: Oonk, J. B. R.
name: Murray, Norman
name: Hoekstra, Henk
name: Donahue, Megan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: IRAS 09104+4109 is a rare example of a dust enshrouded type 2 QSO in the centre of a cool-core galaxy cluster. Previous observations of this z=0.44 system showed that as well as powering the hyper-luminous infrared emission of the cluster-central galaxy, the QSO is associated with a double-lobed radio source. However, the steep radio spectral index and misalignment between the jets and ionised optical emission suggested that the orientation of the QSO had recently changed. We use a combination of new, multi-band Giant Metrewave Radio Telescope observations and archival radio data to confirm that the jets are no longer powered by the QSO, and estimate their age to be 120-160 Myr. This is in agreement with the ~70-200 Myr age previously estimated for star-formation in the galaxy. Previously unpublished Very Long Baseline Array data reveal a 200 pc scale double radio source in the galaxy core which is more closely aligned with the current QSO axis and may represent a more recent period of jet activity. These results suggest that the realignment of the QSO, the cessation of jet activity, and the onset of rapid star-formation may have been caused by a gas-rich galaxy merger. A Chandra X-ray observation confirms the presence of cavities associated with the radio jets, and we estimate the energy required to inflate them to be ~7.7x10^60 erg. The mechanical power of the jets is sufficient to balance radiative cooling in the cluster, provided they are efficiently coupled to the intra-cluster medium (ICM). We find no evidence of direct radiative heating and conclude that the QSO either lacks the radiative luminosity to heat the ICM, or that it requires longer than 100-200 Myr to significantly impact its environment. [Abridged]
description: 23 pages, 18 figures and 7 tables. Accepted for publication in MNRAS
5: General-Beregning over Gaarde-Talet udi Aggershuus-Stift
Creators: name: Hammer, Christopher
Publisher: name: Unknown
Year: 0

description: Ha XA Qv. 25b Norske Carter. Forarbeider. 4 Geographiske underrætninger til Norske Carter, Norsk Naturhistorie og Antiqviteter 1-27
8: [Om fiskerier i Christiansands Stift] Lindegaard
Creators: name: Lindegaard, Niels
Publisher: name: Unknown
Year: 0

description: Ha XA Qv. 25b Norske Carter. Forarbeider. 4 Geographiske underrætninger til Norske Carter, Norsk Naturhistorie og Antiqviteter 1-27
title: "Statuetta di sileno seduto", arte romana, inv. CCLIX (ITA/EN)
title: Scheda catalogo digitale Borghese
titleType: AlternativeTitle
Creators: name: Ciccarello, Giulia
name: Galleria Borghese
Publisher: name: Galleria Borghese
Year: 2024

description: Pubblicazione delle schede delle opere conservate nel museo ed estratte dal catalogo digitale di

Galleria Borghese, nelle due versioni esistenti online, in italiano e inglese.

Collegamento al catalogo digitale:

ITA: https://www.collezionegalleriaborghese.it/

EN: https://www.collezionegalleriaborghese.it/en
Exclusion, Discovery and Identification of Dark Matter with Directional Detection
Creators: name: Billard, J.
name: Mayet, F.
name: Santos, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Directional detection is a promising search strategy to discover galactic Dark Matter. We present a Bayesian analysis framework dedicated to data from upcoming directional detectors. The interest of directional detection as a powerful tool to set exclusion limits, to authentify a Dark Matter detection or to constrain the Dark Matter properties, both from particle physics and galactic halo physics, will be demonstrated.
description: 10 pages, 11 figures; Proceedings of the 3rd International conference on Directional Detection of Dark Matter (CYGNUS 2011), Aussois, France, 8-10 June 2011
title: Своеобразие Новгородского генофонда в контексте народонаселения европейской части России
Creators: name: Балановская, Елена
name: Черневский, Денис
name: Балановский, Олег
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: Исследован генофонд населения Новгородской области по подробной полногеномной панели. Три изученные новгородские популяции (геномы 15 индивидов) сопоставлены с широким кругом популяций европейской части России и Урала (259 геномов из 21 русских популяций и 442 генома 20 других народов). Обнаружено своеобразие генофонда новгородцев: при объективном разделении генофонда на 8 предковых компонент одна из них составляет основную часть (91%) геномов новгородцев, тогда как в других русских популяциях она составляет лишь треть генофонда и отсутствует у большинства других народов. Эта «новгородская» предковая компонента оказалась столь же характерна для популяций Ярославской области, как и для Новгородской: их аутосомные генофонды практически идентичны. Такие же генетические особенности свойственны и ряду жителей Нижегородской области, генеалогии которых содержат информацию о средневековых переселенцах из Новгорода: это подтверждает, что данная предковая компонента отражает генофонд древней Новгородчины.
Testing an astronomically-based decadal-scale empirical harmonic climate model versus the IPCC (2007) general circulation climate models
Creators: name: Scafetta, Nicola
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geophysics (physics.geo-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We compare the performance of a recently proposed empirical climate model based on astronomical harmonics against all available general circulation climate models (GCM) used by the IPCC (2007) to interpret the 20th century global surface temperature. The proposed model assumes that the climate is resonating with, or synchronized to a set of natural harmonics that have been associated to the solar system planetary motion, mostly determined by Jupiter and Saturn. We show that the GCMs fail to reproduce the major decadal and multidecadal oscillations found in the global surface temperature record from 1850 to 2011. On the contrary, the proposed harmonic model is found to well reconstruct the observed climate oscillations from 1850 to 2011, and it is able to forecast the climate oscillations from 1950 to 2011 using the data covering the period 1850-1950, and vice versa. The 9.1-year cycle is shown to be likely related to a decadal Soli/Lunar tidal oscillation, while the 10-10.5, 20-21 and 60-62 year cycles are synchronous to solar and heliospheric planetary oscillations. Finally, we show how the presence of these large natural cycles can be used to correct the IPCC projected anthropogenic warming trend for the 21st century. By combining this corrected trend with the natural cycles, we show that the temperature may not significantly increase during the next 30 years mostly because of the negative phase of the 60-year cycle. The same IPCC projected anthropogenic emissions would imply a global warming by about 0.3-1.2 K by 2100, contrary to the IPCC 1.0-3.6 K projected warming. The results of this paper reinforce previous claims that the relevant physical mechanisms that explain the detected climatic cycles are still missing in the current GCMs and that climate variations at the multidecadal scales are astronomically induced and, in first approximation, can be forecast.
description: Web-page of the article at the journal http://www.sciencedirect.com/science/article/pii/S1364682611003385
11: Mærkværdighederne udi Slidre NF [Niels Finckenhagen]
Creators: name: Finckenhagen, Niels
Publisher: name: Unknown
Year: 0

description: Ha XA Qv. 25b Norske Carter. Forarbeider. 4 Geographiske underrætninger til Norske Carter, Norsk Naturhistorie og Antiqviteter 1-27
The Significance of Simple Invariant Solutions in Turbulent Flows
Creators: name: Kawahara, Genta
name: Uhlmann, Markus
name: van Veen, Lennaert
Publisher: name: arXiv
Year: 2011
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 76F20

description: Recent remarkable progress in computing power and numerical analysis is enabling us to fill a gap in the dynamical systems approach to turbulence. One of the significant advances in this respect has been the numerical discovery of simple invariant sets, such as nonlinear equilibria and periodic solutions, in well-resolved Navier--Stokes flows. This review describes some fundamental and practical aspects of dynamical systems theory for the investigation of turbulence, focusing on recently found invariant solutions and their significance for the dynamical and statistical characterization of low-Reynolds-number turbulent flows. It is shown that the near-wall regeneration cycle of coherent structures can be reproduced by such solutions. The typical similarity laws of turbulence, i.e. the Prandtl wall law and the Kolmogorov law for the viscous range, as well as the pattern and intensity of turbulence-driven secondary flow in a square duct can also be represented by these simple invariant solutions.
description: To appear in Annual Review of Fluid Mechanics, Vol. 44, 2012
12: [Brev 1775-05-19 til Chr. Hammer, om oversendelse av to reiseruter] E. M. Schielderup
Creators: name: Schielderup, Even Meldal
Publisher: name: Unknown
Year: 0

description: Ha XA Qv. 25b Norske Carter. Forarbeider. 4 Geographiske underrætninger til Norske Carter, Norsk Naturhistorie og Antiqviteter 1-27
13: Til Vands [og Lands] fra Christiansand [til Stavanger]
Creators: name: Hammer, Christopher
Publisher: name: Unknown
Year: 0

description: Ha XA Qv. 25b Norske Carter. Forarbeider. 4 Geographiske underrætninger til Norske Carter, Norsk Naturhistorie og Antiqviteter 1-27
Supporting materials for complementary analyses in Exploring and Modeling Response Process Data from PISA: Inferences related to Motivation and Problem-solving
Creators: name: Lundgren, Erik
Publisher: name: Zenodo
Year: 2023

description: Supporting materials for complementary analyses in Exploring and Modeling Response Process Data from PISA: Inferences related to Motivation and Problem-solving. Code for analyses in Appendix 1: study1.R Code for analyses in Appendix 2: study3.R
15: Reise Route fra Gierrestad Præstegaard til Christiansand Hans Speilberg
Creators: name: Speilberg, Hans
Publisher: name: Unknown
Year: 0

description: Ha XA Qv. 25b Norske Carter. Forarbeider. 4 Geographiske underrætninger til Norske Carter, Norsk Naturhistorie og Antiqviteter 1-27
Switchable Hyperbolic Metamaterials With Magnetic Control
Creators: name: Li, Wei
name: Liu, Zheng
name: Zhang, Xiaogang
name: Jiang, Xunya
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A switchable hyperbolic material (SHM) is investigated, with which one can turn on or off the hyperbolic dispersion of the material via magnetic control. The SHM has simple structure, with a one-dimensional periodic stacking of dielectric layer and gyromagnetic layer. The hyperbolic dispersion of SHM is due to the negative effective permeability of gyromagnetic layers, and it can be transformed into a regular circular dispersion when the d.c. magnetic field is switched off. This switchable dispersion transition is reversible, which may have great potential applications in many fields.
Fejér-Riesz factorizations and the structure of bivariate polynomials orthogonal on the bi-circle
Creators: name: Geronimo, Jeffrey S.
name: Iliev, Plamen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Complex Variables (math.CV)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We give a complete characterization of the positive trigonometric polynomials Q(θ,ϕ) on the bi-circle, which can be factored as Q(θ,ϕ)=|p(e^{iθ},e^{iϕ})|^2 where p(z,w) is a polynomial nonzero for |z|=1 and |w|\leq 1. The conditions are in terms of recurrence coefficients associated with the polynomials in lexicographical and reverse lexicographical ordering orthogonal with respect to the weight 1/(4π^2Q(θ,ϕ)) on the bi-circle. We use this result to describe how specific factorizations of weights on the bi-circle can be translated into identities relating the recurrence coefficients for the corresponding polynomials and vice versa. In particular, we characterize the Borel measures on the bi-circle for which the coefficients multiplying the reverse polynomials associated with the two operators: multiplication by z in lexicographical ordering and multiplication by w in reverse lexicographical ordering vanish after a particular point. This can be considered as a spectral type result analogous to the characterization of the Bernstein-Szegő measures on the unit circle.
The PLUTO Code for Adaptive Mesh Computations in Astrophysical Fluid Dynamics
Creators: name: Mignone, A.
name: Zanni, C.
name: Tzeferacos, P.
name: van Straalen, B.
name: Colella, P.
name: Bodo, G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present a description of the adaptive mesh refinement (AMR) implementation of the PLUTO code for solving the equations of classical and special relativistic magnetohydrodynamics (MHD and RMHD). The current release exploits, in addition to the static grid version of the code, the distributed infrastructure of the CHOMBO library for multidimensional parallel computations over block-structured, adaptively refined grids. We employ a conservative finite-volume approach where primary flow quantities are discretized at the cell-center in a dimensionally unsplit fashion using the Corner Transport Upwind (CTU) method. Time stepping relies on a characteristic tracing step where piecewise parabolic method (PPM), weighted essentially non-oscillatory (WENO) or slope-limited linear interpolation schemes can be handily adopted. A characteristic decomposition-free version of the scheme is also illustrated. The solenoidal condition of the magnetic field is enforced by augmenting the equations with a generalized Lagrange multiplier (GLM) providing propagation and damping of divergence errors through a mixed hyperbolic/parabolic explicit cleaning step. Among the novel features, we describe an extension of the scheme to include non-ideal dissipative processes such as viscosity, resistivity and anisotropic thermal conduction without operator splitting. Finally, we illustrate an efficient treatment of point-local, potentially stiff source terms over hierarchical nested grids by taking advantage of the adaptivity in time. Several multidimensional benchmarks and applications to problems of astrophysical relevance assess the potentiality of the AMR version of PLUTO in resolving flow features separated by large spatial and temporal disparities.
description: 34 pages, 34 figures, accepted for publication in ApJS
title: COVID-19 и типы аллергических реакций
Creators: name: Болотская, Лариса
name: Смышляева, Римма
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: Нами проанализирована взаимосвязь этапов формирования и развития реакций III типа и коронавирусной инфекции и общность патогенеза. Этиологический фактор, связанный с вирусом SARS-CoV-2, генетические факторы, медиаторы воспаления, тканевое повреждение, фармакотерапия демонстрируют много сходного с данным типом аллергических реакций.
The Link Volume of 3-Manifolds
Creators: name: Rieck, Yo'av
name: Yamashita, Yasushi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M12, 57M50

description: We view closed orientable 3-manifolds as covers of S^3 branched over hyperbolic links. For a p-fold cover M \to S^3, branched over a hyperbolic link L, we assign the complexity p Vol(S^3 minus L) (where Vol is the hyperbolic volume). We define an invariant of 3-manifolds, called the link volume and denoted LV, that assigns to a 3-manifold M the infimum of the complexities of all possible covers M \to S^3, where the only constraint is that the branch set is a hyperbolic link. Thus the link volume measures how efficiently M can be represented as a cover of S^3. We study the basic properties of the link volume and related invariants, in particular observing that for any hyperbolic manifold M, Vol(M) < LV(M). We prove a structure theorem that is similar to (and relies on) the celebrated theorem of Jorgensen and Thurston. This leads us to conjecture that, generically, the link volume of a hyperbolic 3-manifold is much bigger than its volume. Finally we prove that the link volumes of the manifolds obtained by Dehn filling a manifold with boundary tori are linearly bounded above in terms of the length of the continued fraction expansion of the filling curves.
description: 27 pages, several color figures (viewable in black and white)
16: [Reiserute Hardanger-Kongsberg over Hardangervidda] : [brev] J. C. Rømcke [til] assessor Ascanius
Creators: name: Rømcke, Johan Christian
Publisher: name: Unknown
Year: 0

description: Ha XA Qv. 25b Norske Carter. Forarbeider. 4 Geographiske underrætninger til Norske Carter, Norsk Naturhistorie og Antiqviteter 1-27
Improved Data Post-Processing in Quantum Key Distribution and Application to Loss Thresholds in Device Independent QKD
Creators: name: Ma, Xiongfeng
name: Lütkenhaus, Norbert
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Security proofs of quantum key distribution (QKD) often require post-processing schemes to simplify the data structure, and hence the security proof. We show a generic method to improve resulting secure key rates by partially reversing the simplifying post-processing for error correction purposes. We apply our method to the security analysis of device-independent QKD schemes and of detection-device-independent QKD schemes, where in both cases one is typically required to assign binary values even to lost signals. In the device-independent case, the loss tolerance threshold is cut down by our method from 92.4% to 90.9%.The lowest tolerable transmittance of the detector-device-independent scheme can be improved from 78.0% to 65.9%.
description: 16 pages, 3 figures
SZ power spectrum and cluster numbers from an extended merger-tree model
Creators: name: Dvorkin, Irina
name: Rephaeli, Yoel
name: Shimon, Meir
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have recently developed an extended merger-tree model that efficiently follows hierarchical evolution of galaxy clusters and provides a quantitative description of both their dark matter and gas properties. We employed this diagnostic tool to calculate the thermal SZ power spectrum and cluster number counts, accounting explicitly for uncertainties in the relevant statistical and intrinsic cluster properties, such as the halo mass function and the gas equation of state. Results of these calculations are compared with those obtained from a direct analytic treatment and from hydrodynamical simulations. We show that under certain assumptions on the gas mass fraction our results are consistent with the latest SPT measurement. Our approach can be particularly useful in predicting cluster number counts and their dependence on cluster and cosmological parameters.
description: 8 pages, 7 figures, accepted for publication in MNRAS
17: [Brev 1767-12-24 til Chr. Hammer med tilbud om å kopiere to kart ang. Nord-Norge av Erik Helset] J. E. Gunnerus
Creators: name: Gunnerus, Johan Ernst
Publisher: name: Unknown
Year: 0

description: Ha XA Qv. 25b Norske Carter. Forarbeider. 4 Geographiske underrætninger til Norske Carter, Norsk Naturhistorie og Antiqviteter 1-27
Expansion of magnetic clouds in the outer heliosphere
Creators: name: Gulisano, Adriana Maria
name: Demoulin, Pascal
name: Dasso, Sergio
name: Rodriguez, Luciano
Publisher: name: arXiv
Year: 2012
Subjects: subject: Space Physics (physics.space-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A large amount of magnetized plasma is frequently ejected from the Sun as coronal mass ejections (CMEs). Some of these ejections are detected in the solar wind as magnetic clouds (MCs) that have flux rope signatures. Magnetic clouds are structures that typically expand in the inner heliosphere. We derive the expansion properties of MCs in the outer heliosphere from one to five astronomical units to compare them with those in the inner heliosphere. We analyze MCs observed by the Ulysses spacecraft using insitu magnetic field and plasma measurements. The MC boundaries are defined in the MC frame after defining the MC axis with a minimum variance method applied only to the flux rope structure. As in the inner heliosphere, a large fraction of the velocity profile within MCs is close to a linear function of time. This is indicative of} a self-similar expansion and a MC size that locally follows a power-law of the solar distance with an exponent called zeta. We derive the value of zeta from the insitu velocity data. We analyze separately the non-perturbed MCs (cases showing a linear velocity profile almost for the full event), and perturbed MCs (cases showing a strongly distorted velocity profile). We find that non-perturbed MCs expand with a similar non-dimensional expansion rate (zeta=1.05+-0.34), i.e. slightly faster than at the solar distance and in the inner heliosphere (zeta=0.91+-0.23). The subset of perturbed MCs expands, as in the inner heliosphere, at a significantly lower rate and with a larger dispersion (zeta=0.28+-0.52) as expected from the temporal evolution found in numerical simulations. This local measure of the expansion also agrees with the distribution with distance of MC size,mean magnetic field, and plasma parameters. The MCs interacting with a strong field region, e.g. another MC, have the most variable expansion rate (ranging from compression to over-expansion).
Adaptive hybrid optimization strategy for calibration and parameter estimation of physical models
Creators: name: Vesselinov, Velimir V.
name: Harp, Dylan R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geophysics (physics.geo-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A new adaptive hybrid optimization strategy, entitled squads, is proposed for complex inverse analysis of computationally intensive physical models. The new strategy is designed to be computationally efficient and robust in identification of the global optimum (e.g. maximum or minimum value of an objective function). It integrates a global Adaptive Particle Swarm Optimization (APSO) strategy with a local Levenberg-Marquardt (LM) optimization strategy using adaptive rules based on runtime performance. The global strategy optimizes the location of a set of solutions (particles) in the parameter space. The LM strategy is applied only to a subset of the particles at different stages of the optimization based on the adaptive rules. After the LM adjustment of the subset of particle positions, the updated particles are returned to the APSO strategy. The advantages of coupling APSO and LM in the manner implemented in squads is demonstrated by comparisons of squads performance against Levenberg-Marquardt (LM), Particle Swarm Optimization (PSO), Adaptive Particle Swarm Optimization (APSO; the TRIBES strategy), and an existing hybrid optimization strategy (hPSO). All the strategies are tested on 2D, 5D and 10D Rosenbrock and Griewank polynomial test functions and a synthetic hydrogeologic application to identify the source of a contaminant plume in an aquifer. Tests are performed using a series of runs with random initial guesses for the estimated (function/model) parameters. Squads is observed to have the best performance when both robustness and efficiency are taken into consideration than the other strategies for all test functions and the hydrogeologic application.
title: "Busto muliebre", arte romana, inv. CCLVII (ITA/EN)
title: Scheda catalogo digitale Borghese
titleType: AlternativeTitle
Creators: name: Clementi, Jessica
name: Galleria Borghese
Publisher: name: Galleria Borghese
Year: 2024

description: Pubblicazione delle schede delle opere conservate nel museo ed estratte dal catalogo digitale di

Galleria Borghese, nelle due versioni esistenti online, in italiano e inglese.

Collegamento al catalogo digitale:

ITA: https://www.collezionegalleriaborghese.it/

EN: https://www.collezionegalleriaborghese.it/en
Crab GeV flares from corrugated termination shock
Creators: name: Lyutikov, Maxim
name: Balsara, Dinshaw
name: Matthews, Chris
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Very high energy gamma-ray flares from the Crab nebular detected by AGILE and Fermi satellites challenge our understanding of the pulsar wind nebulae. The short duration of the flares, only few days, is particularly puzzling since it is much shorter than the dynamical times scale of the nebular. In this work we investigate analytically and via numerical simulations the electromagnetic signatures expected from the large amplitude low frequency magnetosonic waves generated within the Crab nebular which induce the corrugation perturbations of the termination shock. As a result, the oblique termination shock produces time-dependent, mildly relativistic post-shock flow. Using the relativistic MHD version of the RIEMANN code, we simulate the interaction of the termination shock with downstream perturbations. We demonstrate that mild Doppler boosting of the synchrotron emission in the post-shock flow can produce bright, short time scale flares.
19: [Brev 1775-06-09 til Chr. Hammer] O. Irgens
Creators: name: Irgens, Ole
Publisher: name: Unknown
Year: 0

description: Ha XA Qv. 25b Norske Carter. Forarbeider. 4 Geographiske underrætninger til Norske Carter, Norsk Naturhistorie og Antiqviteter 1-27
Manual Centrifuge.pdf
Creators: name: Ravalo, Tayshaun Gabriel
name: Nicholas Pichon, Julian
name: Hans Perez, Patrick
name: Raymund Pe Benito, Isaiah
name: Toleos, Lorenz
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 400399
subject: Biomedical engineering not elsewhere classified
classificationCode: 401799
subject: Mechanical engineering not elsewhere classified
classificationCode: 510502
subject: Medical physics
classificationCode: 420699
subject: Public health not elsewhere classified

description: This research presents the development of The Dynamofuge, a low-cost, hand-powered centrifuge designed for medical research institutes and rural healthcare settings. By repurposing an emergency flashlight with a 1:9 gear ratio, the prototype achieves centrifugation speeds up to 1035 RPM, enabling the separation of substances like blood, flour-water, and soil-water mixtures. The study combines engineering design, experimental testing, and community feedback to validate the feasibility and portability of the device. The project addresses the need for affordable diagnostic equipment in resource-limited areas, contributing to the fields of biomedical engineering, public health, and mechanical design innovation.
20: Tronhiems Stifts samtlige Kierker J. v. d. L. Parelius
Creators: name: Parelius, Jacob Von Der Lippe
Publisher: name: Unknown
Year: 0

description: Ha XA Qv. 25b Norske Carter. Forarbeider. 4 Geographiske underrætninger til Norske Carter, Norsk Naturhistorie og Antiqviteter 1-27
Anisotropic Subdiffractive Solitons
Creators: name: Herrero, Ramon
name: Barashenkov, I. V.
name: Alexeeva, N. V.
name: Staliunas, Kestutis
Publisher: name: arXiv
Year: 2011
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study solitons in the two-dimensional defocusing nonlinear Schroedinger equation with the spatio-temporal modulation of the external potential. The spatial modulation is due to a square lattice; the resulting macroscopic diffraction is rotationally symmetric in the long-wavelength limit but becomes anisotropic for shorter wavelengths. Anisotropic solitons -- solitons with the square (x,y)-geometry -- are obtained both in the original nonlinear Schroedinger model and in its averaged amplitude equation.
21: [Om Trondhjems Stift] J. v. d. L. Parelius
Creators: name: Parelius, Jacob Von Der Lippe
Publisher: name: Unknown
Year: 0

description: Ha XA Qv. 25b Norske Carter. Forarbeider. 4 Geographiske underrætninger til Norske Carter, Norsk Naturhistorie og Antiqviteter 1-27
Precursor of Sunspot Penumbral Formation discovered with Hinode SOT Observations
Creators: name: Shimizu, Toshifumi
name: Ichimoto, Kiyoshi
name: Suematsu, Yoshinori
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present observations of a precursory signature that would be helpful for understanding the formation process of sunspot penumbrae. The Hinode Solar Optical Telescope successfully captured the entire evolution of a sunspot from the pore to a large well-developed sunspot with penumbra in an emerging flux region appeared in NOAA Active Region 11039. We found an annular zone (width 3"-5") surrounding the umbra (pore) in Ca II H images before the penumbra is formed around the umbra. The penumbra was developed as if to fill the annular zone. The annular zone shows weak magnetogram signals, meaning less magnetic flux or highly inclined fields there. Pre-existing ambient magnetic field islands were moved to be distributed at the outer edge of the annular zone and did not come into the zone. There is no strong systematic flow patterns in the zone, but we occasionally observed small magnetic flux patches streaming out. The observations indicate that the annular zone is different from sunspot moat flow region and that it represents the structure in the chromosphere. We conclude that the annular zone reflects the formation of a magnetic canopy overlying the region surrounding the umbra at the chromospheric level, much before the formation of the penumbra at the photospheric level. The magnetic field structure in the chromosphere needs to be considered in the formation process of the penumbrae.
description: 16 pages, 5 figures, accepted for ApJ Letters
Anelastic tidal dissipation in multi-layer planets
Creators: name: Remus, F.
name: Mathis, S.
name: Zahn, J. -P.
name: Lainey, V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Earth-like planets have viscoelastic mantles, whereas giant planets may have viscoelastic cores. The tidal dissipation of such solid regions, gravitationally perturbed by a companion body, highly depends on their rheology and on the tidal frequency. Therefore, modelling tidal interactions presents a high interest to provide constraints on planets' properties and to understand their history and their evolution, in our Solar System or in exoplanetary systems. We examine the equilibrium tide in the anelastic parts of a planet whatever the rheology, taking into account the presence of a fluid envelope of constant density. We show how to obtain the different Love numbers that describe its tidal deformation. Thus, we discuss how the tidal dissipation in solid parts depends on the planet's internal structure and rheology. Finally, we show how the results may be implemented to describe the dynamical evolution of planetary systems. The first manifestation of the tide is to distort the shape of the planet adiabatically along the line of centers. Then, the response potential of the body to the tidal potential defines the complex Love numbers whose real part corresponds to the purely adiabatic elastic deformation, while its imaginary part accounts for dissipation. This dissipation is responsible for the imaginary part of the disturbing function, which is implemented in the dynamical evolution equations, from which we derive the characteristic evolution times. The rate at which the system evolves depends on the physical properties of tidal dissipation, and specifically on how the shear modulus varies with tidal frequency, on the radius and also the rheological properties of the solid core. The quantification of the tidal dissipation in solid cores of giant planets reveals a possible high dissipation which may compete with dissipation in fluid layers.
description: 17 pages, 11 figures, Accepted for publication in Astronomy & Astrophysics
title: "Statua femminile ammantata, variante del tipo "Grande Ercolanese"", arte romana, inv. CCLVIII (ITA/EN)
title: Scheda catalogo digitale Borghese
titleType: AlternativeTitle
Creators: name: Clementi, Jessica
name: Galleria Borghese
Publisher: name: Galleria Borghese
Year: 2024

description: Pubblicazione delle schede delle opere conservate nel museo ed estratte dal catalogo digitale di

Galleria Borghese, nelle due versioni esistenti online, in italiano e inglese.

Collegamento al catalogo digitale:

ITA: https://www.collezionegalleriaborghese.it/

EN: https://www.collezionegalleriaborghese.it/en
Not So Easy Problems for Tree Decomposable Graphs
Creators: name: Szeider, Stefan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: We consider combinatorial problems that can be solved in polynomial time for graphs of bounded treewidth but where the order of the polynomial that bounds the running time is expected to depend on the treewidth bound. First we review some recent results for problems regarding list and equitable colorings, general factors, and generalized satisfiability. Second we establish a new hardness result for the problem of minimizing the maximum weighted outdegree for orientations of edge-weighted graphs of bounded treewidth.
description: Author's self-archived copy
23: [Brev 1768-04-22 til Chr. Hammer ang. utlån av kart] Generalforstamtet
Creators: name: Generalforstamtet
Publisher: name: Unknown
Year: 0

description: Ha XA Qv. 25b Norske Carter. Forarbeider. 4 Geographiske underrætninger til Norske Carter, Norsk Naturhistorie og Antiqviteter 1-27
Electrical conduction processes in ZnO in a wide temperature range 20--500 K
Creators: name: Lien, Chien-Chi
name: Wu, Chih-Yuan
name: Li, Zhi-Qing
name: Lin, Juhn-Jong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We have investigated the electrical conduction processes in as-grown and thermally cycled ZnO single crystal as well as as-grown ZnO polycrystalline films over the wide temperature range 20--500 K. In the case of ZnO single crystal between 110 and 500 K, two types of thermal activation conduction processes are observed. This is explained in terms of the existence of both shallow donors and intermediately deep donors which are consecutively excited to the conduction band as the temperature increases. By measuring the resistivity $ρ(T)$ of a given single crystal after repeated thermal cycling in vacuum, we demonstrate that oxygen vacancies play an important role in governing the shallow donor concentrations but leave the activation energy ($\simeq27\pm$2 meV) largely intact. In the case of polycrystalline films, two types of thermal activation conduction processes are also observed between $\sim$150 and 500 K. Below $\sim$150 K, we found an additional conduction process due to the nearest-neighbor-hopping conduction mechanism which takes place in the shallow impurity band. As the temperatures further decreases below $\sim$80 K, a crossover to the Mott variable-range-hopping conduction process is observed. Taken together with our previous measurements on $ρ(T)$ of ZnO polycrystalline films in the temperature range 2--100 K [Y. L. Huang {\it et al.}, J. Appl. Phys. \textbf{107}, 063715 (2010)], this work establishes a quite complete picture of the overall electrical conduction mechanisms in the ZnO material from liquid-helium temperatures up to 500 K.
description: 8 pages, 4 figures, 3 tables
Dark matter powered stars: Constraints from the extragalactic background light
Creators: name: Maurer, A.
name: Raue, M.
name: Kneiske, T.
name: Elsässer, D.
name: Hauschildt, P. H.
name: Horns, D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The existence of predominantly cold non-baryonic dark matter is unambiguously demonstrated by several observations (e.g., structure formation, big bang nucleosynthesis, gravitational lensing, and rotational curves of spiral galaxies). A candidate well motivated by particle physics is a weakly interacting massive particle (WIMP). Self-annihilating WIMPs would affect the stellar evolution especially in the early universe. Stars powered by self-annihilating WIMP dark matter should possess different properties compared with standard stars. While a direct detection of such dark matter powered stars seems very challenging, their cumulative emission might leave an imprint in the diffuse metagalactic radiation fields, in particular in the mid-infrared part of the electromagnetic spectrum. In this work the possible contributions of dark matter powered stars (dark stars; DSs) to the extragalactic background light (EBL) are calculated. It is shown that existing data and limits of the EBL intensity can already be used to rule out some DS parameter sets.
description: Accepted for publication in ApJ; 7 pages, 5 figures
Elemental abundances of intermediate age open cluster NGC 3680
Creators: name: Mitschang, A. W.
name: De Silva, G. M.
name: Zucker, D. B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a new abundance analysis of the intermediate age Galactic open cluster NGC 3680, based on high resolution, high signal-to-noise VLT/UVES spectroscopic data. Several element abundances are presented for this cluster for the first time, but most notably we derive abundances for the light and heavy s-process elements Y, Ba, La, and Nd. The serendipitous measurement of the rare-earth r-process element Gd is also reported. This cluster exhibits a significant enhancement of Na in giants as compared to dwarfs, which may be a proxy for an O to Na anti-correlation as observed in Galactic globular clusters but not open clusters. We also observe a step-like enhancement of heavy s-process elements towards higher atomic number, contrary to expectations from AGB nucleosynthesis models, suggesting that the r-process played a significant role in the generation of both La and Nd in this cluster
description: 8 pages, 6 figures, accepted for publication in MNRAS
The Period-Luminosity Relation of Red Supergiant Stars in the Small Magellanic Cloud
Creators: name: Yang, Ming
name: Jiang, B. W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The characteristics of light variation of RSGs in SMC are analyzed based on the nearly 8-10 year long data collected by the ASAS and MACHO projects. The identified 126 RSGs are classified into five categories accordingly: 20 with poor photometry, 55 with no reliable period, 6 with semi-regular variation, 15 with Long Secondary Period (LSP) and distinguishable short period and 30 with only LSP. For the semi-regular variables and the LSP variables with distinguishable short period, the Ks band period-luminosity (P-L) relation is analyzed and compared with that of the Galaxy, LMC and M33. It is found that the RSGs in these galaxies obey similar P-L relation except the Galaxy. In addition, the P-L relations in the infrared bands, namely the 2MASS JHKs, Spitzer/IRAC and Spitzer/MIPS 24 μm bands, are derived with high reliability. The best P-L relation occurs in the Spitzer/IRAC [3.6] and [4.5] bands. Based on the comparison with the theoretical calculation of the P-L relation, the mode of pulsation of RSGs in SMC is suggested to be the first overtone radial mode.
description: 82 pages, 31 figures, 6 tables, accepted for publication in ApJ
26: [Brev 1767-06-23 til Chr. Hammer med anbefaling av kartene til Hans Strøm og Marcus Schnabel] Fridrich Arentz
Creators: name: Arentz, Frederik
Publisher: name: Unknown
Year: 0

description: Ha XA Qv. 25b Norske Carter. Forarbeider. 4 Geographiske underrætninger til Norske Carter, Norsk Naturhistorie og Antiqviteter 1-27
Production Resources and Practices in the Western Cotton Region
Creators: name: Ethridge, Don E.
name: Shaw, Dale L.
name: McArthur, W. C.
name: Ethridge, Don E.
name: Shaw, Dale L.
name: McArthur, W. C.
Publisher: name: Unknown
Year: 1977
Subjects: Crop Production/Industries
Farm Management
Land Economics/Use
Production Economics
Productivity Analysis
Resource /Energy Economics and Policy

description: Excerpts from the Regional Summary: The Western region, comprising three distinct production areas (Mid-Arizona, the Imperial Valley, and the San Joaquin Valley), is a major cotton region. Relatively high yields and good quality lint characterize Far West cotton. Other characteristics of the region include a long growing season, generally flat terrain, low rainfall, and relatively fertile soils. Irrigation water is essential to the production of cotton and other crops in all parts of the region. Although available from both surface and groundwater sources, water for irrigation is a limiting resource throughout the region. Groundwater provides a much larger proportion of the irrigation water in Mid-Arizona than in either the Imperial Valley or the San Joaquin Valley. This water is generally much more expensive for irrigation than surface water; a factor that impacts on cropping patterns. Cotton is a strong competitor in the Western region, particularly in Joaquin 1. It appears to be less competitive in parts of the Imperial Valley where vegetable and fruit production may have an advantage. Shifts in the competitive strength of cotton among areas in the Far West may hinge in large measure on the availability and cost of irrigation water in the years ahead. These factors tend to work to the disadvantage of the heavier water users such as alfalfa.
27: Høland og Zittsckauen : med ... Kiercker, Gaarder, Elver og Broer ...
Creators: name: Hammer, Christopher
Publisher: name: Unknown
Year: 0

description: Ha XA Qv. 25b Norske Carter. Forarbeider. 4 Geographiske underrætninger til Norske Carter, Norsk Naturhistorie og Antiqviteter 1-27
Prædikener holdte i Levanger kirke .Hefte 2: fra 3. mai til 15. juni 1856 4 søndag etter Trinitalis ?, Hefte 2: fra 3. mai til 15. juni 1856 4 søndag etter Trinitalis ?
Creators: name: Berg, Ole
Publisher: name: Unknown
Year: 0

description: Prædikener holdte i Levanger kirke
Resistive and magnetoresistive properties of CrO2 pressed powders with different types of inter-granular dielectric layers
Creators: name: Dalakova, N. V.
name: Belevtsev, B. I.
name: Beliayev, E. Yu.
name: Bludov, O. M.
name: Pashchenko, V. A.
name: Osmolovsky, M. G.
name: Osmolovskaya, O. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Resistive, magnetoresistive and magnetic properties of four kinds of pressed CrO2 powders, synthesized by hydrothermal method of chromic anhydride have been investigated. The particles in powders constituted of rounded particles (diameter 120 nm) or needle-shaped crystals with an average diameter of 22.9 nm and average length of 302 nm. All of the particles had a surface dielectric shell of varying thickness and different types (such as oxyhydroxide -CrOOH or chromium oxide Cr2O3). For all the samples at low temperatures we found non-metallic temperature dependence of resistivity and giant negative magnetoresistance (MR). The maximum value of MR at low temperatures (T \approx 5 K) is \approx 37% in relatively small fields (0.5 T). At higher temperatures there was a rapid decrease of MR (up to \approx 1% / T at T \approx 200 K). The main objective of this work was studying the influence of properties and thickness of the intergranular dielectric layers, as well as CrO2 particle shape, on the magnitude of the tunneling resistance and MR of the pressed powder. The new results obtained in this study include: (1) detection at low temperatures in powders with needle-like particles a new type of MR hysteresis, and nonmonotonic MR behaviour with increasing magnetic field (absolute value of the MR at first grows rather rapidly with the field, and then begins diminishing markedly, forming a maximum), and (2) detection of non-monotonic temperature dependence, where - a field in which the resistance in a magnetic field has a maximum, as well as finding discrepancies in values of and coercivity fields, (3) detection of the anisotropy of MR, depending on the relative orientation of the transport current and the magnetic field, (4) a new method of synthesis, to regulate the thickness of dielectric coating.
description: 19 pages, 8 figures
Computable Categoricity for Algebraic Fields with Splitting Algorithms
Creators: name: Miller, Russell
name: Shlapentokh, Alexandra
Publisher: name: arXiv
Year: 2011
Subjects: subject: Logic (math.LO)
subject: Commutative Algebra (math.AC)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 03C57, 11U09

description: A computably presented algebraic field $F$ has a \emph{splitting algorithm} if it is decidable which polynomials in $F[X]$ are irreducible there. We prove that such a field is computably categorical iff it is decidable which pairs of elements of $F$ belong to the same orbit under automorphisms. We also show that this criterion is equivalent to the relative computable categoricity of $F$.
Die Vor- und Frühgeschichtliche Besiedlung des Unterharzes und seines Vorlandes auf Grund der Bodenfunde
Creators: name: Grimm, Paul
Publisher: name: Jahresschrift für mitteldeutsche Vorgeschichte
Year: 2020

description: Jahresschrift für mitteldeutsche Vorgeschichte, Bd. 18 (1930): Jahresschrift für die Vorgeschichte der sächsisch-thüringischen Länder
Der Bronzeschatzfund von Bothenheilingen (Kr. Langensalza)
Creators: name: Limpert, Wilhelm
Publisher: name: Jahresschrift für mitteldeutsche Vorgeschichte
Year: 2020

description: Jahresschrift für mitteldeutsche Vorgeschichte, Bd. 19 (1931): Jahresschrift für die Vorgeschichte der sächsisch-thüringischen Länder
Der Bronzeschatzfund vom Lehof bei Quedlinburg
Creators: name: Schirwitz, Karl
Publisher: name: Jahresschrift für mitteldeutsche Vorgeschichte
Year: 2020

description: Jahresschrift für mitteldeutsche Vorgeschichte, Bd. 19 (1931): Jahresschrift für die Vorgeschichte der sächsisch-thüringischen Länder