cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
XMM-Newton observations of the low-luminosity cataclysmic variable V405 Pegasi
Creators: name: Schwope, A. D.
name: Scipione, V.
name: Traulsen, I.
name: Schwarz, R.
name: Granzer, T.
name: Pires, A. M.
name: Thorstensen, J. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: V405 Peg is a low-luminosity cataclysmic variable (CV) that was identified as the optical counterpart of the bright, high-latitude ROSAT all-sky survey source RBS1955. The system was suspected to belong to a largely undiscovered population of hibernating CVs. Despite intensive optical follow-up its subclass however remained undetermined. We want to further classify V405 Peg and understand its role in the CV zoo via its long-term behaviour, spectral properties, energy distribution and accretion luminosity. We perform a spectral and timing analysis of \textit{XMM-Newton} X-ray and ultra-violet data. Archival WISE, HST, and Swift observations are used to determine the spectral energy distribution and characterize the long-term variability. The X-ray spectrum is characterized by emission from a multi-temperature plasma. No evidence for a luminous soft X-ray component was found. Orbital phase-dependent X-ray photometric variability by $\sim50\%$ occurred without significant spectral changes. No further periodicity was significant in our X-ray data. The average X-ray luminosity during the XMM-Newton observations was L_X, bol simeq 5e30 erg/s but, based on the Swift observations, the corresponding luminosity varied between 5e29 erg/s and 2e31 erg/son timescales of years. The CV subclass of this object remains elusive. The spectral and timing properties show commonalities with both classes of magnetic and non-magnetic CVs. The accretion luminosity is far below than that expected for a standard accreting CV at the given orbital period. Objects like V405 Peg might represent the tip of an iceberg and thus may be important contributors to the Galactic Ridge X-ray Emission. If so they will be uncovered by future X-ray surveys, e.g. with eROSITA.
description: A&A, in press
Message Encoding for Spread and Orbit Codes
Creators: name: Trautmann, Anna-Lena
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Spread codes and orbit codes are special families of constant dimension subspace codes. These codes have been well-studied for their error correction capability and transmission rate, but the question of how to encode messages has not been investigated. In this work we show how the message space can be chosen for a given code and how message en- and decoding can be done.
description: Submitted to IEEE International Symposium on Information Theory 2014
Stellar Mergers Are Common
Creators: name: Kochanek, C. S.
name: Adams, Scott M.
name: Belczynski, Krzysztof
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The observed Galactic rate of stellar mergers or the initiation of common envelope phases brighter than M_V=-3 (M_I=-4) is of order 0.5 (0.3)/year with 90% confidence statistical uncertainties of 0.24-1.1 (0.14-0.65) and factor of 2 systematic uncertainties. The (peak) luminosity function is roughly dN/dL L^(-1.4+/-0.3), so the rates for events more luminous than V1309 Sco (M_V=-7 mag) or V838Mon (M_V=-10 mag) are lower at r~0.1/year and 0.03/year, respectively. The peak luminosity is a steep function of progenitor mass, L M^(2-3). This very roughly parallels the scaling of luminosity with mass on the main sequence, but the transients are ~2000-4000 times more luminous at peak. Combining these, the mass function of the progenitors, dN/dM M^(-2.0+/-0.8), is consistent with the initial mass function, albeit with broad uncertainties. These observational results are also broadly consistent with the estimates of binary population synthesis models. While extragalactic variability surveys can better define the rates and properties of the high luminosity events, systematic, moderate depth (I>16 mag) surveys of the Galactic plane are needed to characterize the low luminosity events. The existing Galactic samples are only ~20% complete and Galactic surveys are (at best) reaching a typical magnitude limit of <13 mag.
description: Submitted to MNRAS (13 pages, 6 figures, 3 tables)
Additional file 3 of Reconsideration of operative indications in pancreatic neuroendocrine neoplasms
Creators: name: Abe, Kodai
name: Kitago, Minoru
name: Iwasaki, Eisuke
name: Yagi, Hiroshi
name: Abe, Yuta
name: Hasegawa, Yasushi
name: Hori, Shutaro
name: Tanaka, Masayuki
name: Nakano, Yutaka
name: Kitagawa, Yuko
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Cancer

description: Additional file 3. Time transition of resected PNEN patients during study period. PNEN, pancreatic neuroendocrine neoplasm.
Uncertainties in Solar Synoptic Magnetic Flux Maps
Creators: name: Bertello, L.
name: Pevtsov, A. A.
name: Petrie, G. J. D.
name: Keys, D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Magnetic flux synoptic charts are critical for reliable modeling of the corona and heliosphere. Until now, however, these charts were provided without any estimate of uncertainties. The uncertainties are due to instrumental noise in the measurements and to the spatial variance of the magnetic flux distribution that contributes to each bin in the synoptic chart. We describe here a simple method to compute synoptic magnetic flux maps and their corresponding magnetic flux spatial variance charts that can be used to estimate the uncertainty in the results of coronal models. We have tested this approach by computing a potential-field-source-surface model of the coronal field for a Monte Carlo simulation of Carrington synoptic magnetic flux maps generated from the variance map. We show that these uncertainties affect both the locations of source-surface neutral lines and the distributions of coronal holes in the models.
description: 15 pages, 7 figures. Accepted for publication in "Solar Physics"
48CK302-598, Side Notched Point, Side 1
Creators: name: (:Unkn) Unknown
Publisher: name: University of Wyoming
Year: 2023
Subjects: Projectile Point
Side Notched
Chert
Vore Buffalo Jump
Bison
Bison Jump
Mass Kill Site
Archaeological Site
Northwest Plains Tribes
Sinkhole
Wyoming
Prehistoric
Archaeology

description: Image of a brown chert side notched projectile point, complete. Provenience: O-?-88"
Plasma physical parameters along Coronal Mass Ejection-driven shocks: I observations
Creators: name: Bemporad, A.
name: Susino, R.
name: Lapenta, G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this work UV and white light (WL) coronagraphic data are combined to derive the full set of plasma physical parameters along the front of a shock driven by a Coronal Mass Ejection. Pre-shock plasma density, shock compression ratio, speed and inclination angle are estimated from WL data, while pre-shock plasma temperature and outflow velocity are derived from UV data. The Rankine-Hugoniot (RH) equations for the general case of an oblique shock are then applied at three points along the front located between $2.2-2.6$ R$_\odot$ at the shock nose and at the two flanks. Stronger field deflection (by $\sim 46^\circ$), plasma compression (factor $\sim 2.7$) and heating (factor $\sim 12$) occur at the nose, while heating at the flanks is more moderate (factor $1.5-3.0$). Starting from a pre-shock corona where protons and electrons have about the same temperature ($T_p \sim T_e \sim 1.5 \cdot 10^6$ K), temperature increases derived with RH equations could better represent the protons heating (by dissipation across the shock), while the temperature increase implied by adiabatic compression (factor $\sim 2$ at the nose, $\sim 1.2-1.5$ at the flanks) could be more representative of electrons heating: the transit of the shock causes a decoupling between electron and proton temperatures. Derived magnetic field vector rotations imply a draping of field lines around the expanding flux rope. The shock turns out to be super-critical (sub-critical) at the nose (at the flanks), where derived post-shock plasma parameters can be very well approximated with those derived by assuming a parallel (perpendicular) shock.
description: 29 pages, 7 figures, accepted for publication on ApJ
A singular-potential random matrix model arising in mean-field glassy systems
Creators: name: Akemann, Gernot
name: Villamaina, Dario
name: Vivo, Pierpaolo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider an invariant random matrix model where the standard Gaussian potential is distorted by an additional single pole of order $m$. We compute the average or macroscopic spectral density in the limit of large matrix size, solving the loop equation with the additional constraint of vanishing trace on average. The density is generally supported on two disconnected intervals lying on the two sides of the pole. In the limit of having no pole, we recover the standard semicircle. Obtained in the planar limit, our results apply to matrices with orthogonal, unitary or symplectic symmetry alike. The orthogonal case with $m=2$ is motivated by an application to spin glass physics. In the Sherrington-Kirkpatrick mean-field model, in the paramagnetic phase and for sufficiently large systems the spin glass susceptibility is a random variable, depending on the realization of disorder. It is essentially given by a linear statistics on the eigenvalues of the coupling matrix. As such its large deviation function can be computed using standard Coulomb fluid techniques. The resulting free energy of the associated fluid precisely corresponds to the partition function of our random matrix model. Numerical simulations provide an excellent confirmation of our analytical results.
description: 26 pag., 11 fig
Lesion-based indicators predict long-term outcomes of pheochromocytoma and paraganglioma– SIZEPASS
Creators: name: Hanschell, Helena
name: Diaz-Cano, Salvador J.
name: Blanes, Alfredo
name: Talat, Nadia
name: Galata, Gabriele
name: Aylwin, Simon
name: Schulte, Klaus Martin
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 321102
subject: Cancer diagnosis
classificationCode: 321109
subject: Predictive and prognostic markers
classificationCode: 321111
subject: Solid tumours

description: Aim: We seek a simple and reliable tool to predict malignant behavior of pheochromocytoma and paraganglioma (PPGL).Methods: This single-center prospective cohort study assessed size of primary PPGLs on preoperative cross-sectional imaging and prospectively scored specimens using the Pheochromocytoma of the Adrenal Gland Scaled Score (PASS). Multiplication of PASS points with maximum lesion diameter (in mm) yielded the SIZEPASS criterion. Local recurrence, metastasis or death from disease were surrogates defining malignancy.Results: 76 consecutive PPGL patients, whereof 58 with pheochromocytoma and 51 female, were diagnosed at a mean age of 52.0 ± 15.2 years. 11 lesions (14.5%) exhibited malignant features at a median follow-up (FU) of 49 months (range 4-172 mo). Median FU of the remaining cohort was 139 months (range 120-226 mo). SIZEPASS classified malignancy with an area under the curve (AUC) of 0.97 (95%CI 0.93-1.01; p<0.0001). Across PPGL, SIZEPASS >1000 outperformed all known predictors of malignancy, with sensitivity 91%, specificity 94%, and accuracy 93%, and an odds ratio of 72 fold (95%CI 9-571; P<0.001). It retained an accuracy >90% in cohorts defined by location (adrenal, extra-adrenal) or mutation status.Conclusions: The SIZEPASS>1000 criterion is a lesion-based, clinically available, simple and effective tool to predict malignant behavior of PPGLs independently of age, sex, location or mutation status.
Optimal Power Control for Analog Bidirectional Relaying with Long-Term Relay Power Constraint
Creators: name: Hadzi-Velkov, Zoran
name: Zlatanov, Nikola
name: Schober, Robert
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Wireless systems that carry delay-sensitive information (such as speech and/or video signals) typically transmit with fixed data rates, but may occasionally suffer from transmission outages caused by the random nature of the fading channels. If the transmitter has instantaneous channel state information (CSI) available, it can compensate for a significant portion of these outages by utilizing power allocation. In a conventional dual-hop bidirectional amplify-and-forward (AF) relaying system, the relay already has instantaneous CSI of both links available, as this is required for relay gain adjustment. We therefore develop an optimal power allocation strategy for the relay, which adjusts its instantaneous output power to the minimum level required to avoid outages, but only if the required output power is below some cutoff level; otherwise, the relay is silent in order to conserve power and prolong its lifetime. The proposed scheme is proven to minimize the system outage probability, subject to an average power constraint at the relay and fixed output powers at the end nodes.
description: conference IEEE Globecom 2013, Atlanta, Georgia, US
48CK302-18616, Side Notched Point, Side 2
Creators: name: (:Unkn) Unknown
Publisher: name: University of Wyoming
Year: 2023
Subjects: Projectile Point
Side Notched
Quartzite
Vore Buffalo Jump
Bison
Bison Jump
Mass Kill Site
Archaeological Site
Northwest Plains Tribes
Sinkhole
Wyoming
Prehistoric
Archaeology

description: Image of a purple side notched projectile point, complete. Provenience: G25-12 (N101 E102)
Acts tracking algorithm prototypes
Creators: name: Grasland, Hadrien
Publisher: name: Zenodo
Year: 2023
Subjects: WP12

description: The AIDAinnova project is expanding the capabilities of the Acts track reconstruction toolkit in order to make it the state-of-the-art experiment independent tracking toolkit and to develop further R&D directions. In the first 23 months of the project this investment has yielded a number of outcomes: software engineering foundations have been solidified, many state-of-the-art algorithms were integrated, new machine learning approaches were investigated, general usability from experiment frameworks was improved, and GPU R&D has progressed to the point where some of these ideas start feeding back into the Acts core.
Algebraically special resonances of the Kerr-black-hole-mirror bomb
Creators: name: Hod, Shahar
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A co-rotating bosonic field interacting with a spinning Kerr black hole can extract rotational energy and angular momentum from the hole. This intriguing phenomenon is known as superradiant scattering. As pointed out by Press and Teukolsky, the black-hole-field system can be made unstable (explosive) by placing a reflecting mirror around the black hole which prevents the extracted energy from escaping to infinity. This composed black-hole-mirror-field bomb has been studied extensively by many researchers. It is worth noting, however, that most former studies of the black-hole bomb phenomenon have focused on the specific case of confined scalar (spin-$0$) fields. In the present study we explore the physical properties of the higher-spin (electromagnetic and gravitational) black-hole bombs. It is shown that this composed system is amenable to an analytic treatment in the physically interesting regime of rapidly-rotating black holes. In particular, we prove that the composed black-hole-mirror-field bomb is characterized by the unstable resonance frequency $ω=mΩ_{\text{H}}+is\cdot 2πT_{\text{BH}}$ (here $s$ and $m$ are respectively the spin-parameter and the azimuthal harmonic index of the field, and $Ω_{\text{H}}$ and $T_{\text{BH}}$ are respectively the angular-velocity and the temperature of the rapidly-spinning black hole). Our results provide evidence that the higher-spin (electromagnetic and gravitational) black-hole-mirror bombs are much more explosive than the extensively studied scalar black-hole-mirror bomb. In particular, it is shown here that the instability growth rates which characterize the higher-spin black-hole bombs are two orders of magnitudes larger than the instability growth rate of the scalar black-hole bomb.
description: 15 pages
Additional file 4 of Reconsideration of operative indications in pancreatic neuroendocrine neoplasms
Creators: name: Abe, Kodai
name: Kitago, Minoru
name: Iwasaki, Eisuke
name: Yagi, Hiroshi
name: Abe, Yuta
name: Hasegawa, Yasushi
name: Hori, Shutaro
name: Tanaka, Masayuki
name: Nakano, Yutaka
name: Kitagawa, Yuko
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Cancer

description: Additional file 4. Receiver operating characteristic curve of tumor size with and without lymph node metastasis in pancreatic neuroendocrine neoplasm.
Discovery of secular variations in the atmospheric abundances of magnetic Ap stars
Creators: name: Bailey, J. D.
name: Landstreet, J. D.
name: Bagnulo, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The stars of the middle main sequence have relatively quiescent outer layers, and unusual chemical abundance patterns may develop in their atmospheres. The presence of chemical peculiarities reveal the action of such subsurface phenomena as gravitational settling and radiatively driven levitation of trace elements, and their competition with mixing processes such as turbulent diffusion. We want to establish whether abundance peculiarities change as stars evolve on the main sequence, and provide observational constraints to diffusion theory. We have performed spectral analysis of 15 magnetic Bp stars that are members of open clusters (and thus have well-known ages), with masses between about 3 and 4 M_sun. For each star, we measured the abundances of He, O, Mg, Si, Ti, Cr, Fe, Pr and Nd. We have discovered the systematic time evolution of trace elements through the main-sequence lifetime of magnetic chemically peculiar stars as their atmospheres cool and evolve toward lower gravity. During the main sequence lifetime, we observe clear and systematic variations in the atmospheric abundances of He, Ti, Cr, Fe, Pr and Nd. For all these elements, except He, the atmospheric abundances decrease with age. The abundances of Fe-peak elements converge toward solar values, while the rare-earth elements converge toward values at least 100 times more abundant than in the Sun. Helium is always underabundant compared to the Sun, evolving from about 1% up to 10% of the solar He abundance. We have attempted to interpret the observed abundance variations in the context of radiatively driven diffusion theory, which appears to provide a framework to understand some, but not all, of the observed anomalous abundance levels and variations.
description: 13 pages, 5 figures, 5 tables, accepted for publication in A&A
Topological phases due to the coexistence of superconductivity and spin-density wave: Application to high Tc superconductors in the underdoped regime
Creators: name: Gupta, Amit
name: Sa, Debanand
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider the coexistence of superconductivity(SC) and spin-density wave(SDW). The SC is presumed to be of $d_{x^2-y^2}+id_{xy} (d_1 + i d_2) $ type whereas the SDW order parameter is of $BCS$/$d_{x y} $ symmetry. The Hamiltonian having such a structure is shown to have topological coexistence phases in addition to the conventional one. It is shown that the amplitudes of both the order parameters determine the nature of topological phases. A phase diagram characterizing different topological phases with their Chern numbers are obtained. The experimental realization of such topological phases with reference to high temperature superconductors in the extreme underdoped regime are discussed.
description: 5 pages text, 4 figures
Characterizations of Fredholm pairs and chains in Hilbert spaces
Creators: name: Boasso, Enrico
Publisher: name: arXiv
Year: 2014
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary 47A13, Secondary 47A53, 47A55

description: In this work characterizations of Fredholm pairs and chains of Hilbert space operators are given. Following a well-known idea of several variable operator theory in Hilbert spaces, the aforementioned objects are characterized in terms of Fredholm linear and bounded maps. Furthermore, as an application of the main results of this work, direct proofs of the stability properties of Fredholm pairs and chains in Hilbert spaces are obtained.
description: 15 pages, original research article
Magnified image of CK302-1296 with polishing on bone tool from bison rib
Creators: name: (:Unkn) Unknown
Publisher: name: University of Wyoming
Year: 2023
Subjects: Rib
Polishing
Bone Tool
Vore Buffalo Jump
Bison
Bison Jump
Mass Kill Site
Archaeological Site
Northwest Plains Tribes
Sinkhole
Wyoming
Prehistoric
Archaeology

description: Rib anterior aspect at 7.9 magnification.
Star formation in the massive cluster merger Abell 2744
Creators: name: Rawle, T. D.
name: Altieri, B.
name: Egami, E.
name: Perez-Gonzalez, P. G.
name: Richard, J.
name: Santos, J. S.
name: Valtchanov, I.
name: Walth, G.
name: Bouy, H.
name: Haines, C. P.
name: Okabe, N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a comprehensive study of star-forming (SF) galaxies in the HST Frontier Field recent cluster merger A2744 (z=0.308). Wide-field, ultraviolet-infrared (UV-IR) imaging enables a direct constraint of the total star formation rate (SFR) for 53 cluster galaxies, with SFR{UV+IR}=343+/-10 Msun/yr. Within the central 4 arcmin (1.1 Mpc) radius, the integrated SFR is complete, yielding a total SFR{UV+IR}=201+/-9 Msun/yr. Focussing on obscured star formation, this core region exhibits a total SFR{IR}=138+/-8 Msun/yr, a mass-normalised SFR{IR} of Sigma{SFR}=11.2+/-0.7 Msun/yr per 10^14 Msun and a fraction of IR-detected SF galaxies f{SF}=0.080(+0.010,-0.037). Overall, the cluster population at z~0.3 exhibits significant intrinsic scatter in IR properties (total SFR{IR}, Tdust distribution) apparently unrelated to the dynamical state: A2744 is noticeably different to the merging Bullet cluster, but similar to several relaxed clusters. However, in A2744 we identify a trail of SF sources including jellyfish galaxies with substantial unobscured SF due to extreme stripping (SFR{UV}/SFR{IR} up to 3.3). The orientation of the trail, and of material stripped from constituent galaxies, indicates that the passing shock front of the cluster merger was the trigger. Constraints on star formation from both IR and UV are crucial for understanding galaxy evolution within the densest environments.
description: Accepted by MNRAS. 12 pages, 7 figures (high resolution versions of Figs. 1 & 2 are available in the published PDF)
Additional file 5 of Reconsideration of operative indications in pancreatic neuroendocrine neoplasms
Creators: name: Abe, Kodai
name: Kitago, Minoru
name: Iwasaki, Eisuke
name: Yagi, Hiroshi
name: Abe, Yuta
name: Hasegawa, Yasushi
name: Hori, Shutaro
name: Tanaka, Masayuki
name: Nakano, Yutaka
name: Kitagawa, Yuko
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Cancer

description: Additional file 5. Overall survival analysis for patients with resected pancreatic neuroendocrine neoplasm. We analyzed resected PNEN survival using Kaplan-Meyer method, showing that both overall and recurrence free survival were favorable. OS, overall survival; RFS, recurrence free survival.
48CK302-538, Tool Fragment, Side 1
Creators: name: (:Unkn) Unknown
Publisher: name: University of Wyoming
Year: 2023
Subjects: Stone Tool
Quartzite
Vore Buffalo Jump
Bison
Bison Jump
Mass Kill Site
Archaeological Site
Northwest Plains Tribes
Sinkhole
Wyoming
Prehistoric
Archaeology

description: Image of a gray quartzite flake tool fragment. Provenience: W4-1
Magnified image of CK302-16413 with root etching on bison mandible
Creators: name: (:Unkn) Unknown
Publisher: name: University of Wyoming
Year: 2023
Subjects: Mandible
Root Etching
Vore Buffalo Jump
Bison
Bison Jump
Mass Kill Site
Archaeological Site
Northwest Plains Tribes
Sinkhole
Wyoming
Prehistoric
Archaeology

description: Mandible buccal aspect at 6.8 magnification.
Exploring the z=3-4 massive galaxy population with ZFOURGE: the prevalence of dusty and quiescent galaxies
Creators: name: Spitler, Lee R.
name: Straatman, Caroline M. S.
name: Labbe, Ivo
name: Glazebrook, Karl
name: Tran, Kim-Vy H.
name: Kacprzak, Glenn G.
name: Quadri, Ryan F.
name: Papovich, Casey
name: Persson, S. Eric
name: van Dokkum, Pieter
name: Allen, Rebecca
name: Kawinwanichakij, Lalitwadee
name: Kelson, Daniel D.
name: McCarthy, Patrick J.
name: Mehrtens, Nicola
name: Monson, Andrew J.
name: Nanayakkara, Themiya
name: Rees, Glen
name: Tilvi, Vithal
name: Tomczak, Adam R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Our understanding of the redshift $z>3$ galaxy population relies largely on samples selected using the popular "dropout" technique, typically consisting of UV-bright galaxies with blue colors and prominent Lyman breaks. As it is currently unknown if these galaxies are representative of the massive galaxy population, we here use the FourStar Galaxy Evolution (ZFOURGE) Survey to create a stellar mass-limited sample at $z=3-4$. Uniquely, ZFOURGE uses deep near-infrared medium-bandwidth filters to derive accurate photometric redshifts and stellar population properties. The mass-complete sample consists of 57 galaxies with log M $>10.6$, reaching below $M^{\star}$ at $z=3-4$. On average, the massive $z=3-4$ galaxies are extremely faint in the observed optical with median $R_{tot}^{AB}=27.48\pm0.41$ (restframe $M_{1700}=-18.05\pm0.37$). They lie far below the UV luminosity-stellar mass relation for Lyman break galaxies and are about $\sim100\times$ fainter at the same mass. The massive galaxies are red ($R-Ks_{AB}=3.9\pm0.2$; restframe UV-slope $β=-0.2\pm0.3$) likely from dust or old stellar ages. We classify the galaxy SEDs by their restframe $U-V$ and $V-J$ colors and find a diverse population: $46^{+6+10}_{-6-17}$% of the massive galaxies are quiescent, $54^{+8+17}_{-8-10}$% are dusty star-forming galaxies, and only $14^{+3+10}_{-3-4}$% resemble luminous blue star forming Lyman break galaxies. This study clearly demonstrates an inherent diversity among massive galaxies at higher redshift than previously known. Furthermore,we uncover a reservoir of dusty star-forming galaxies with $4\times$ lower specific star-formation rates compared to submillimeter-selected starbursts at $z>3$. With $5\times$ higher numbers, the dusty galaxies may represent a more typical mode of star formation compared to submillimeter-bright starbursts.
description: Accepted for publication in ApJ Letters. See http://zfourge.tamu.edu for more details about ZFOURGE
Radiative corrections to the charged pion-pair production process {\boldmath$π^-γ\to π^+π^-π^-$} at low energies
Creators: name: Kaiser, N.
name: Petschauer, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the one-photon loop radiative corrections to the charged pion-pair production process $π^-γ\toπ^+π^-π^-$. In the low-energy region this reaction is governed by the chiral pion-pion interaction. The pertinent set of 42 irreducible photon-loop diagrams is calculated by using the package FeynCalc. Electromagnetic counterterms with two independent low-energy constants $\widehat k_1$ and $\widehat k_2$ are included in order to remove the ultraviolet divergences generated by the photon-loops. Infrared finiteness of the virtual radiative corrections is achieved by including soft photon radiation below an energy cut-off $λ$. The purely electromagnetic interaction of the charged pions mediated by one-photon exchange is also taken into account. The radiative corrections to the total cross section (in the isospin limit) vary between $+10\%$ close to threshold and about $-1\%$ at a center-of-mass energy of $7m_π$. The largest contribution comes from the simple one-photon exchange. Radiative corrections to the $π^+π^-$ and $π^-π^-$ mass spectra are studied as well. The Coulomb singularity of the final-state interaction produces a kink in the dipion mass spectra. The virtual radiative corrections to elastic $π^-π^-$ scattering are derived additionally.
description: 19 pages, 17 figures, accepted for publication in Eur. Phys. J. A
48CK302-505, Tri-Notched Point, Side 2
Creators: name: (:Unkn) Unknown
Publisher: name: University of Wyoming
Year: 2023
Subjects: Projectile Point
Tri-Notched
Porcellanite
Vore Buffalo Jump
Bison
Bison Jump
Mass Kill Site
Archaeological Site
Northwest Plains Tribes
Sinkhole
Wyoming
Prehistoric
Archaeology

description: Image of a banded red porcellanite tri-notched projectile point, complete. Provenience: W2-?-52"
Creativity interwoven into the fabric of learning, an example from a postgraduate nutritional science module
Creators: name: Nerantzi, Chrissi
name: Moravej, Haleh
name: Iosifidou, Ioanna
name: Nani Silva, Leticia
Publisher: name: PRISM: Casting New Light on Learning, Theory and Practice
Year: 2020

description: This paper is a patchwork of reflective accounts linked to the experience of a postgraduate module that was co-designed by a teaching team using creative approaches to learning. The teaching team provide a rationale for the design and approaches used in this module. The reflective accounts of these two students that have been included, should be seen as two cases that provide insights into these students’ experience on the module and aided to conduct a preliminary evaluation linked to these and not the whole cohort.
description: PRISM: Casting New Light on Learning, Theory and Practice, Early View
Additional file 6 of Reconsideration of operative indications in pancreatic neuroendocrine neoplasms
Creators: name: Abe, Kodai
name: Kitago, Minoru
name: Iwasaki, Eisuke
name: Yagi, Hiroshi
name: Abe, Yuta
name: Hasegawa, Yasushi
name: Hori, Shutaro
name: Tanaka, Masayuki
name: Nakano, Yutaka
name: Kitagawa, Yuko
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Cancer

description: Additional file 6. Review of observed PNEN cases.
How the central black hole may shape its host galaxy through AGN feedback
Creators: name: Ishibashi, W.
name: Fabian, A. C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Active galactic nucleus (AGN) feedback provides the link between the central black hole and its host galaxy. We assume AGN feedback driven by radiation pressure on dust, which sweeps up the ambient dusty gas into an outflowing shell, and consider feedback-triggered star formation in the outflow. An upper limit to the characteristic size of galaxies may be defined by the critical radius beyond which radiation pressure on dust is no longer able to drive the shell. The corresponding enclosed mass may be compared with the host galaxy bulge mass. We show that the resulting relation between characteristic radius and mass, of the form $R \propto \sqrt M$, corresponds to the observed mass-radius relation of early-type galaxies. We suggest that such simple physical scalings may account for a number of observed galaxy scaling relations. In this picture, both the size and structural evolution of galaxies can be interpreted as a consequence of AGN feedback-driven star formation, mainly associated with the spheroidal component. The accreting black hole is responsible for triggering star formation in the host galaxy, while ultimately clearing the dusty gas out of the host, thus also contributing to the chemical evolution of galaxies. We discuss the importance of radiation pressure on dust in determining the galaxies large-scale properties, and consider the possibility of the central black hole directly shaping its host galaxy through AGN feedback.
description: accepted for publication in Monthly Notices of the Royal Astronomical Society
Magnified image of CK302-6544 with polishing on bone tool from bison rib
Creators: name: (:Unkn) Unknown
Publisher: name: University of Wyoming
Year: 2023
Subjects: Rib
Polishing
Bone Tool
Vore Buffalo Jump
Bison
Bison Jump
Mass Kill Site
Archaeological Site
Northwest Plains Tribes
Sinkhole
Wyoming
Prehistoric
Archaeology

description: Rib posterior aspect at 7.9 magnification.
Forderungen der Antipsychiatrie - Relevanz für die Praxis der Sozialen Arbeit
Creators: name: Shpakova, Olga
name: Meyer, Simone
Publisher: name: Zenodo
Year: 2022

description: Die Antipsychiatrie gerät selten in den Fokus wissenschaftlicher Auseinandersetzungen. Dabei stützt sich die Antipsychiatrie auf eine breite theoretische Basis und kann Interventionserfolge auf der gesellschaftlichen Ebene aufweisen wie veränderte psychiatrische Praxis weltweit oder beispielweise die Schliessung der psychiatrischen Kliniken per Gesetz in Italien. Im Rahmen dieser Bachelorarbeit wurden Forderungen der antipsychiatrischen Bewegung in Bezug zur Psychiatrie und der Sozialen Arbeit gesetzt. Die antipsychiatrischen Forderungen zielen auf die Verbesserung der Lebenssituation vieler Menschen ab, was die Aufgabe der Sozialen Arbeit per Definition ist. Soziale Arbeit als Handlungswissenschaft und stark auf Reflexion aufbauend, ist ständig mit scheinbar objektiven Gegebenheiten und Haltungsfragen hinsichtlich Normen und Werten konfrontiert. Das Ziel der vorliegenden Arbeit ist es zu beantworten, inwiefern die Forderungen der Antipsychiatrie für die Praxis der Sozialen Arbeit vor dem Hintergrund ihres Disziplin- und Professionsverständnisses relevant sind und welche Schlussfolgerungen sich daraus ergeben. Für dieses Vorhaben werden Bezüge zu soziologischen Theorien des Symbolischen Interaktionismus und der Wissenssoziologie nach Berger und Luckmann erstellt und die damit verbundenen konstruktivistischen Denkweisen erläutert. Die Ergebnisse zeigen, dass die Antipsychiatrie dank der Vielfalt ihrer theoretischen Grundlagen und ihrer Fähigkeit problematische gesellschaftliche Zustände wahrzunehmen, kritisch zu hinterfragen und effizient zu problematisieren eine beachtenswerte Lern- und Reflexionsquelle in Bezug auf die Entstehung der sozialen Ordnungen, Ungleichheiten und Machtverhältnisse für die Praxis der Sozialen Arbeit darstellt.
description: + Code Diss LU: hslusa basa + Fussnote: Bachelor-Arbeit, Hochschule Luzern – Soziale Arbeit, Studienrichtung Sozialarbeit, 2022 + NL-Code: NLLUHSA202209
Synthesis of peri-substituted acenaphthenes for carbon-heteroatom coupling
Creators: name: Kerr, Hannah
Publisher: name: The University of St Andrews
Year: 2023
Subjects: Peri-substitution
Acenaphthenes
Carbon-heteroatom bonding
Synthesis

description: The work presented in this thesis is an extension to the work started around peri¬-substituted acenaphthenes for carbon-heteroatom coupling, an expansion to dehydrocoupling and dealkacoupling (H–H and C–H bond formation). This thesis explores the synthesis of several classes of peri-substituted heteroatom species and investigates how the internal strain within the acenaphthene molecule is the catalyst for intermolecular coupling reaction tested under various conditions. The main focus of this thesis is the synthesis of peri-substituted acenaphthenes of phosphinous thioesters, using a range of alkyl, cyclic and dialkyl thiols. These underwent the coupling reaction under various reaction conditions; thermal, radical initiator with AIBN and under UV irradiation. Addition of a radical initiator indicates that the mechanism of the coupling reaction is indeed radical. This completed the sulfur series, allowing for comparison not only structurally but also with regards to the coupling reaction. These compounds demonstrate that C–S coupling is viable, although these compounds are sensitive to both air and moisture. This concept was extended to C–N heteroatom coupling, where a series of novel peri-substituted species were synthesised and where possible, structurally authenticated using single crystal X-ray diffraction. These were also subjected to the coupling reaction under both thermal and radical initiator conditions. However, unlike the sulfur series the nitrogen compounds do not couple under radical initiator conditions but do under thermal, indicating a higher activation barrier confirmed by computational calculations. Using one of the nitrogen compounds, the use of acenaphthene amines as a ligand for metal complexes was studied, allowing us to investigate the change in coupling constants between the two peri-atoms. Finally, additional bis(phosphino) monoxides were synthesised to extended the current class of compounds. These species were subjected to the coupling reaction under thermal, radial initiator and UV irradiation, with thermal conditions showing the most promise.
Finding “Win-Win” China’s Arctic Policy and what it means for Canada
Creators: name: Lajeunesse, Adam
Publisher: name: The School of Public Policy Publications
Year: 2018

description: China is a “Near Arctic State” with national interests in Arctic resources, shipping lanes, and regional governance. That was the message delivered to the world in China’s new Arctic policy. The philosophy espoused in this White Paper is one of cooperation and mutual profit – what the Chinese have dubbed “win-win” polar partnerships. These partnerships have been expanding in recent years. Tens of billions of dollars in Chinese capital has flowed into oil and gas projects in Siberia and the Russian Arctic offshore, new shipping routes are being tested, and state-owned mining companies have acquired rich mineral deposits in Greenland and – to a lesser extent – Canada.  These resources, and the sea lanes that connect them, have been labelled the “Polar Silk Road,” a maritime trade and shipping route supported by Chinese infrastructure spending running through the Northwest Passage and other circumpolar channels. China’s increasingly confident posture in the North represents real opportunities – and challenges – for Canada.  Managed property, Chinese money can support the decades old Canadian dream of developing the Northwest Passage as a useable sea route, decreasing shipping costs, supporting development and improving the quality of life for Arctic residents. Managed incorrectly, Chinese activity might leave the Asian power with a degree of de facto control over the Arctic, damaging Canadian sovereignty and imperiling the country’s ability to manage this increasingly important region on Canadian terms. This new White Paper is as clear a signal as can be sent that China is coming into the Arctic with long-term strategic ambitions. Canada should not fear this development, but it must be prepared for it.
description: The School of Public Policy Publications, Vol 11 (2018)
Kaon femtoscopy in $\sqrt{s_{NN}}$=200 GeV central Au+Au collsions at STAR
Creators: name: Vertesi, Robert
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Three-dimensional analyses of the pion source revealed a heavy, non-Gaussian tail in the direction of the pair transverse momentum. The interpretation of these pion sources in terms of pure hydrodynamical evolution is, however, complicated by the strong contribution of feed-down from long-lived resonances to the source. On the other hand, kaons provide a much cleaner probe of the expanding fireball. Here we present a recent three-dimensional kaon correlation analysis using Cartesian harmonics decomposition technique. In contrary to pions, the three-dimensional source function of kaons is largely Gaussian. Comparison with thermal simulations and a hydrokinetic model show that resonance decays, as well as non-zero emission duration and/or rescattering in the hadronic phase play an important role. The analysis of the three dimensional extent of the kaon source w.r.t. the pair transverse momentum favors the hydrokinetic model over the exact mT-scaling featured by perfect hydrodynamical models.
description: Accepted in the proceedings of Strangeness in Quark Matter Conference (SQM 2013), will appear in the Open Access Journal of Physics: Conference Series (JPCS). 4 pages, 2 figures
Additional file 2 of Syntrophic acetate oxidation replaces acetoclastic methanogenesis during thermophilic digestion of biowaste
Creators: name: Dyksma, Stefan
name: Jansen, Lukas
name: Gallert, Claudia
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 2. Supplementary Methods.
48CK302-590, Tri-Notched Point, Side 2
Creators: name: (:Unkn) Unknown
Publisher: name: University of Wyoming
Year: 2023
Subjects: Projectile Point
Tri-Notched
Quartzite
Vore Buffalo Jump
Bison
Bison Jump
Mass Kill Site
Archaeological Site
Northwest Plains Tribes
Sinkhole
Wyoming
Prehistoric
Archaeology

description: Image of a tan quartzite tri-notched projectile point, complete. Provenience: O-?-82.5"
Communication and Dissemination Plan
Creators: name: Kampshoff, Stephan
name: Sabini, Matteo
Publisher: name: Zenodo
Year: 2021

description: The “Communication and Dissemination Plan” is the first deliverable of Work Package 8 concerning the Communication and Dissemination Activities. The present report establishes a 3-year communication and dissemination strategy for the Human Microbiome Action project. The plan will be a living document and evaluated yearly to keep the viability of the communication strategy aligned with the project’s evolution. If needs be, the plan will be updated according to the recent changes. The overall strategy set in this document aims to build the visibility and reputation of the Human Microbiome Action project and to boost the uptake of its results by the relevant audiences. The ultimate goals are to maximise the impact and relevance of the projects’ work to stakeholders and support the vision of the project to fight the rise of non-communicable diseases and to keep Europe at the forefront of microbiome research.
On the Reversal of SFR-Density Relation at z=1: Insights from Simulations
Creators: name: Tonnesen, Stephanie
name: Cen, Renyue
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Recent large surveys have found a reversal of the star formation rate (SFR)-density relation at z=1 from that at z=0 (e.g. Elbaz et al.; Cooper et al.), while the sign of the slope of the color-density relation remains unchanged (e.g. Cucciati et al.; Quadri et al.). We use state-of-the-art adaptive mesh refinement cosmological hydrodynamic simulations of a 21x24x20 (Mpc/h)$^3$ region centered on a cluster to examine the SFR-density and color-density relations of galaxies at z=0 and z=1. The local environmental density is defined by the dark matter mass in spheres of radius 1 Mpc/h, and we probe two decades of environmental densities. Our simulations produce a large increase of SFR with density at z=1, as in the observations of Elbaz et al. We also find a significant evolution to z=0, where the SFR-density relation is much flatter. The color-density relation in our simulations is consistent from z=1 to z=0, in agreement with observations. We find that the increase in the median SFR with local density at z=1 is due to a growing population of star-forming galaxies in higher-density environments. At z=0 and z=1 both the SFR and cold gas mass are tightly correlated with the galaxy halo mass, and therefore the correlation between median halo mass and local density is an important cause of the SFR-density relation at both redshifts. We also show that the local density on 1 Mpc/h scales affects galaxy SFRs as much as halo mass at z=0. Finally, we find indications that the role of the 1 Mpc/h scale environment reverses from z=0 to z=1: at z=0 high-density environments depress galaxy SFRs, while at z=1 high-density environments tend to increase SFRs.
description: Accepted to ApJ, 14 pages, 9 figures
Magnified image of CK302-941 with rodent gnawing on bison vertebrae
Creators: name: (:Unkn) Unknown
Publisher: name: University of Wyoming
Year: 2023
Subjects: Vertebrae
Rodent Gnawing
Vore Buffalo Jump
Bison
Bison Jump
Mass Kill Site
Archaeological Site
Northwest Plains Tribes
Sinkhole
Wyoming
Prehistoric
Archaeology

description: Vertebrae dorsal aspect at 22.6 magnification.
Additional file 7 of Reconsideration of operative indications in pancreatic neuroendocrine neoplasms
Creators: name: Abe, Kodai
name: Kitago, Minoru
name: Iwasaki, Eisuke
name: Yagi, Hiroshi
name: Abe, Yuta
name: Hasegawa, Yasushi
name: Hori, Shutaro
name: Tanaka, Masayuki
name: Nakano, Yutaka
name: Kitagawa, Yuko
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Cancer

description: Additional file 7. Updated treatment flowchart of PNEN according to our findings.
Hard- Pomeron behavior of the Longitudinal Structure Function $F_{L}$ in the Next- to- Leading- Order at low $x$
Creators: name: Boroun, G. R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present an analytic formula to extract the longitudinal structure function in the next- to -leading order of the perturbation theory at low $x$, from the Regge- like behavior of the gluon distribution and the structure function at this limit. In this approach, the longitudinal structure function has the hard- Pomeron behavior. The determined values are compared with the $H1$ data and MRST model. All results can consistently be described within the framework of perturbative QCD which essentially show increases as $x$ decreases.
description: 10pages,3figures
48CK302-550, Knife, Side 1
Creators: name: (:Unkn) Unknown
Publisher: name: University of Wyoming
Year: 2023
Subjects: Stone Tool
Knife
Chert
Vore Buffalo Jump
Bison
Bison Jump
Mass Kill Site
Archaeological Site
Northwest Plains Tribes
Sinkhole
Wyoming
Prehistoric
Archaeology

description: Image of a brown chert bifacial knife, likely Knife River chert. Provenience: W4-?-10"
48CK302-464, Secondary Flake, Side 2
Creators: name: (:Unkn) Unknown
Publisher: name: University of Wyoming
Year: 2023
Subjects: Stone Tool
Retouched Flake
Quartzite
Vore Buffalo Jump
Bison
Bison Jump
Mass Kill Site
Archaeological Site
Northwest Plains Tribes
Sinkhole
Wyoming
Prehistoric
Archaeology

description: Image of a black and red secondary flake, complete. Provenience: N1-?-7
Magnified image of CK302-27712 with polishing on bone point notch
Creators: name: (:Unkn) Unknown
Publisher: name: University of Wyoming
Year: 2023
Subjects: Bone Point
Polishing
Bone Tool
Vore Buffalo Jump
Bison
Bison Jump
Mass Kill Site
Archaeological Site
Northwest Plains Tribes
Sinkhole
Wyoming
Prehistoric
Archaeology

description: Bone Point notch at 7.0 magnification.