cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
2MTF II. New Parkes 21-cm observations of 303 southern galaxies
Creators: name: Hong, Tao
name: Staveley-Smith, Lister
name: Masters, Karen L.
name: Springob, Christopher M.
name: Macri, Lucas M.
name: Koribalski, Barbel S.
name: Jones, D. Heath
name: Jarrett, Tom H.
name: Crook, Aidan C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present new 21-cm neutral hydrogen (HI) observations of spiral galaxies for the 2MASS Tully Fisher (2MTF) survey. Using the 64-m Parkes radio telescope multibeam system we obtain 152 high signal-to-noise HI spectra from which we extract 148 high-accuracy (< 5% error) velocity widths and derive reliable rotation velocities. The observed sample consists of 303 southern (δ< -40°) galaxies selected from the MASS Redshift Survey (2MRS) with K_s <11.25 mag, cz < 10,000 km/s and axis ratio b/a < 0.5. The HI observations reported in this paper will be combined with new HI spectra from the Green Bank and Arecibo telescopes, together producing the most uniform Tully-Fisher survey ever constructed (in terms of sky coverage). In particular, due to its near infrared selection, 2MTF will be significantly more complete at low Galactic latitude (|b|<15°) and will provide a more reliable map of peculiar velocities in the local universe.
description: 11 pages, 12 figures, 3 tables, accepted for publication in MNRAS
Shock heating of the merging galaxy cluster A521
Creators: name: Bourdin, H.
name: Mazzotta, P.
name: Markevitch, M.
name: Giacintucci
name: Brunetti, G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A521 is an interacting galaxy cluster located at z=0.247, hosting a low frequency radio halo connected to an eastern radio relic. Previous Chandra observations hinted at the presence of an X-ray brightness edge at the position of the relic, which may be a shock front. We analyze a deep observation of A521 recently performed with XMM-Newton in order to probe the cluster structure up to the outermost regions covered by the radio emission. The cluster atmosphere exhibits various brightness and temperature anisotropies. In particular, two cluster cores appear to be separated by two cold fronts. We find two shock fronts, one that was suggested by Chandra and that is propagating to the east, and another to the southwestern cluster outskirt. The two main interacting clusters appear to be separated by a shock heated region, which exhibits a spatial correlation with the radio halo. The outer edge of the radio relic coincides spatially with a shock front, suggesting this shock is responsible for the generation of cosmic ray electrons in the relic. The propagation direction and Mach number of the shock front derived from the gas density jump, M = 2.4 +/- 0.2, are consistent with expectations from the radio spectral index, under the assumption of Fermi I acceleration mechanism.
Light field distribution of general function photonic crystals
Creators: name: Wu, Xiang-Yao
name: Zhang, Bo-Jun
name: Liu, Xiao-Jing
name: Zhang, Si-Qi
name: Wang, Jing
name: Ba, Nuo
name: Xiao, Li
name: Li, Hong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this paper, We have presented a new general function photonic crystals (GFPCs), which refractive indexes are line functions of space position in two mediums $A$ and $B$, and obtain new results: (1) when the line function of refractive indexes is up or down, the transmissivity can be far larger or smaller than 1. (2) when the refractive indexes function increase or decrease along the direction of incident light, the light intensity should be magnified or weaken, which can be made optical magnifier or attenuator. (3) The GFPCs can be made optical diode when the light positive and negative incident the GFPCs.
description: arXiv admin note: substantial text overlap with arXiv:1207.3556, arXiv:1205.1178
Supporting Sensing Application in Vehicular Networks
Creators: name: Zarmehri, Mohammad Nozari
name: Aguiar, Ana
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: This research aims at using vehicular ad-hoc networks as infra-structure for an urban cyber-physical system in order to gather data about a city. In this scenario, all nodes are data sources and there is a gateway as ultimate destination for all packets. Because of the volatility of the network connections and uncertainty of actual node placement, we argue that a broadcast-based protocol is the most adequate solution, despite the high overhead. The Urban Data Collector (UDC) protocol has been proposed which uses a distributed election of the forwarding node among the nodes receiving the packet: nodes that are nearer to the gateway have shorter timers and a higher forwarding probabilities. The performance of the UDC protocol has been evaluated with different suppression levels in terms of the amount of collected data from each road segment using NS-3, and our results show that UDC can achieve significantly higher sensing accuracy than to other broadcast-based protocols.
description: 7 pages, 9 figures, 2 tables
Correlation quantum beats induced by non-Markovian effect
Creators: name: Zeng, Hao-Sheng
name: Zheng, Yan-Ping
name: Tang, Ning
name: Wang, Guo-You
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For two qubits independently coupled to their respective structured reservoirs (Lorentzian spectrum), quantum beats for entanglement and discord are found which are the result of quantum interference between correlation oscillations induced by local non-Markovian environments. We also discuss the preservation of quantum correlations by the effective suppression of the spontaneous emission.
description: 15 pages, 5 figures
Arthrospira sp. mediated bioremediation of gray water in ceramic membrane based photobioreactor: process optimization by response surface methodology
Creators: name: Mukhopadhyay, Shritama
name: Jana, Animesh
name: Ghosh, Sourja
name: Majumdar, Swachchha
name: Ghosh, Tapan Kumar
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Direct discharge of raw domestic sewage enriched with nitrogenous and phosphorous compounds into the water bodies causes eutrophication and other environmental hazards with detrimental impacts on public and ecosystem health. The present study focuses on phycoremediation of gray water with Arthrospira sp. using an innovative hydrophobic ceramic membrane-based photobioreactor system integrated with CO2 biofixation and biodiesel production, aiming for green technology development. Surfactant and oil-rich gray water collected from the domestic kitchen was used wherein, chloride, sulfate, and surfactant concentrations were statistically optimized using response surface methodology (RSM), considering maximum microalgal growth rate as a response for the design. Ideal concentrations (mg/L) of working parameters were found to be 7.91 (sulfate), 880.49 (chloride), and 144.02 (surfactant), respectively to achieve optimum growth rate of 0.43 gdwt/L/day. Enhancement of growth rate of targeted microalgae by 150% with suitable CO2 (19.5%) supply and illumination in the photobioreactor affirms its efficient operation. Additionally, harvested microalgal biomass obtained from the process showed a biodiesel content of around 5.33% (dry weight). The microalgal treatment enabled about 96.82, 87.5, and 99.8% reductions in BOD, COD, and TOC, respectively, indicating the potential of the process in pollutant assimilation and recycling of such wastewater along with value-added product generation. The study elucidated the application of indigenously designed and devised ceramic membranes in an algal photobioreactor for viable production of Arthrospira sp. employing gray water, aided by photosynthetic CO2 sequestration and microalgal biorefinery. A highly encouraging result was achieved in the microalgal process under optimized culture conditions with >95% removal of organics. It may be stressed here that the process ran effectively without any elaborate arrangement of external aeration, thereby reducing the investment and operating costs to the minimum.
l-Thyroxine induces left ventricular remodeling and fibrosis in rats by upregulating miR-21 in a reactive oxygen-dependent mechanism: a protective role of N-acetylcysteine
Creators: name: Khaleel, Eman F.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Cancer

description: miR-21 is the most studied pro-fibrotic marker in the majority of mammalian tissues. The precise mechanism by which hyperthyroidism induces left ventricular LV fibrosis and remodeling remains unclear. In this study, we have investigated the role of miR-21 on l-thyroxine (l-Thy)-induced cardiac fibrosis in rats. Adult male Sprague–Dawley rats were divided into four groups as control, l-Thy, l-Thy + miR antagomir (inhibitor), and l-Thy + N-acetylcysteine (NAC/glutathione (GSH) precursor). Administration of l-Thy significantly increased mRNA levels of miR-21 in the LVs of the treated rats. Also, it impaired the LV systolic and diastolic function and increased the production of reactive oxygen species (ROS), the transactivation of NF-κB p65, the expression of NRLP3 inflammasome, and levels of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in these LVs. Concomitantly, l-Thy increased the ventricular collagen deposition, and stimulated the expression of collagen 1/3, alpha-smooth actin (α-SMA), transforming growth factor-β1, and Smad3/p-Smad3 but suppressed the expression of Smad7. All these effects were reversed by pre-treatment with miR-21 antagomir or co-administration of NAC. In conclusion, l-Thy-induced LV remodeling and fibrosis include a ROS-dependent upregulation of miR-21 which in turns activates NF-κB/NRLP3 inflammasome and suppresses SMad7.
Semiclassical wave-packets emerging from interaction with an environment
Creators: name: Recchia, Carla
name: Teta, Alessandro
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the quantum evolution in dimension three of a system composed by a test particle interacting with an environment made of $N$ harmonic oscillators. At time zero the test particle is described by a spherical wave, i.e. a highly correlated continuous superposition of states with well localized position and momentum, and the oscillators are in the ground state. Under suitable assumptions on the physical parameters characterizing the model, we give an asymptotic expression of the solution of the Schrödinger equation of the system with an explicit control of the error. The result shows that the approximate expression of the wave function is the sum of two terms, orthogonal in $L^2(\erre^{3(N+1)})$ and describing rather different situations. In the first one all the oscillators remain in their ground state and the test particle is described by the free evolution of a slightly deformed spherical wave. The second one consists of a sum of $N$ terms where in each term there is only one excited oscillator and the test particle is correspondingly described by the free evolution of a wave packet, well concentrated in position and momentum. Moreover the wave packet emerges from the excited oscillator with an average momentum parallel to the line joining the oscillator with the center of the initial spherical wave. Such wave packet represents a semiclassical state for the test particle, propagating along the corresponding classical trajectory. The main result of our analysis is to show how such a semiclassical state can be produced, starting from the original spherical wave, as a result of the interaction with the environment.
description: 30 pages
Physical Properties of $Ba_2 Mn_2 Sb_2 O$ Single Crystals
Creators: name: Li, J.
name: Ekuma, C. E.
name: Vekhter, I.
name: Jarrell, M.
name: Moreno, J.
name: Stadler, S.
name: Karki, A. B.
name: Jin, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report both experimental and theoretical investigations of the physical properties of Ba$_\mathrm{2}$Mn$_\mathrm{2}$Sb$_\mathrm{2}$O single crystals. This material exhibits a hexagonal structure with lattice constants: a = 4.7029(15) Å and c = 19.9401(27) Å, as obtained from powder X-ray diffraction measurements, and in agreement with structural optimization through density functional theory (DFT) calculations. The magnetic susceptibility and specific heat show anomalies at T$_\mathrm{N}$ = 60 K, consistent with antiferromagnetic ordering. However, the magnitude of T$_\mathrm{N}$ is significantly smaller than the Curie-Weiss temperature ($\mid$$\mathrm{Θ_{CW}}$$\mid$ $\approx$ 560 K), suggesting a magnetic system of reduced dimensionality. The temperature dependence of both the in-plane and out-of-plane resistivity changes from an activated at $T$ $>$ T$_\mathrm{x}$ $\sim$ 200 K to a logarithmic at $T$ $
description: 6 Pages, 5 Figures, and 1 Table
Topologically protected midgap states in complex photonic lattices
Creators: name: Schomerus, Henning
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: One of the principal goals in the design of photonic crystals is the engineering of band gaps and defect states. Drawing on the concepts of band-structure topology, I here describe the formation of exponentially localized, topologically protected midgap states in photonic systems with spatially distributed gain and loss. When gain and loss are suitably arranged these states maintain their topological protection and then acquire a selectively tunable amplification rate. This finds applications in the beam dynamics along a photonic lattice and in the lasing of quasi-one-dimensional photonic crystals.
description: 5 pages, 3 figures
title: Berichte über Landwirtschaft - Zeitschrift für Agrarpolitik und Landwirtschaft, Sonderheft 236 - März 2023
title: Sonderheft 236 - März 2023
titleType: AlternativeTitle
Creators: name: Berichte über Landwirtschaft-Zeitschrift Für Agrarpolitik Und Landwirtschaft
Publisher: name: Berichte über Landwirtschaft - Zeitschrift für Agrarpolitik und Landwirtschaft
Year: 2023

description: Ernährungsarmut unter Pandemiebedingungen
Velocity bunching in travelling wave accelerator with low acceleration gradient
Creators: name: Huang, Rui-Xuan
name: He, Zhi-Gang
name: Li, Wei-Wei
name: Jia, Qi-Ka
Publisher: name: arXiv
Year: 2013
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: We present the analytical and simulated results concerning the influences of the acceleration gradient in the velocity bunching process, which is a bunch compression scheme that uses a traveling wave accelerating structure as a compressor. Our study shows that the bunch compression application with low acceleration gradient is more tolerant to phase jitter and more successful to obtain compressed electron beam with symmetrical longitudinal distribution and low energy spread. We also present a transverse emittance compensation scheme to compensate the emittance growth caused by the increasing of the space charge force in the compressing process that is easy to be adjusted for different compressing factors.
title: Pulmonary sequestration with tuberculous infection of the sequestrated lung
Creators: name: Moharkar, Swapnil
Publisher: name: EURORAD
Year: 2023
Subjects: subject: Chest imaging
subject: Lung
subject: Paediatric
subject: CT
subject: Ultrasound
subject: Clinical Cases

description: Clinical History: An eight-month-old female child presented with fever, left anterior chest wall swelling and discharging abscess in the left supraclavicular region since one month of age. On physical examination, there was decreased air entry on the left side. Her white blood cell counts were elevated (44,000/µL). 

description: 8 months, female
Hepatic susceptibility to oxidative damage after repeated concomitant exposure to aspartame and aflatoxin B1 in rats
Creators: name: Souto, Naieli Schiefelbein
name: Dassi, Micheli
name: Braga, Ana Cláudia Monteiro
name: Rosa, Érica Vanessa Furlan
name: Fighera, Michele Rechia
name: Royes, Luiz Fernando Freire
name: Oliveira, Mauro Schneider
name: Sari, Marcel Henrique Marcondes
name: Furian, Ana Flávia
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified

description: The potential interactions among food additives/contaminants and the consequences to biological systems is a topic that is rarely addressed in scientific literature. Thus, the current study investigated if the combined administration of ASP and AFB1 would impair hepatic and renal oxidative status. Male Wistar rats received during 14 days once a day ASP (75 mg/Kg) and/or AFB1 (250 µg/Kg) through intragastric route. At the end of experimental protocol, samples of liver and kidneys were collected for assessing biochemical markers of oxidative status. In the hepatic tissue, the treatment with a single substance (ASP or AFB1) caused an increase in TBARS levels, and a reduction in non-enzymatic antioxidant defenses (Vit C and NPSH levels and FRAP test). In the kidneys, TBARS levels were increased only in the group that received ASP + AFB1. The association reduced NPSH content, while the treatment with AFB1 reduced the FRAP levels. GST and CAT activities were increased in all treatments. Overall, ASP and AFB1 association presented higher toxic effects to the tissues. To the best of our knowledge, this is the first study demonstrating that the associated use of both ASP and AFB1 induces more extensive injuries in comparison to the effects caused by each one alone. Therefore, these data demonstrated that concomitant exposure to ASP and AFB1 potentiated their oxidative damage in hepatic tissue, suggesting that this organ is particularly sensitive to the toxic action induced by these substances.
Ultrasensitive magnetic field detection using a single artificial atom
Creators: name: Bal, Mustafa
name: Deng, Chunqing
name: Orgiazzi, Jean-Luc
name: Ong, Florian
name: Lupascu, Adrian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Efficient detection of magnetic fields is central to many areas of research and has important practical applications ranging from materials science to geomagnetism. High sensitivity detectors are commonly built using direct current-superconducting quantum interference devices (DC-SQUIDs) or atomic systems. Here we use a single artificial atom to implement an ultrahigh sensitivity magnetometer with a size in the micron range. The artificial atom is a superconducting two-level system at low temperatures, operated in a way similar to atomic magnetometry. The high sensitivity results from quantum coherence combined with strong coupling to magnetic field. By employing projective measurements, we obtain a sensitivity of $2.7\, \t{pT}/\sqrt{\t{Hz}}$ at 10 MHz. We discuss feasible improvements that will increase the sensitivity by over one order of magnitude. The intrinsic sensitivity of this method to AC fields in the 100 kHz - 10 MHz range compares favourably with DC-SQUIDs and atomic magnetometers of equivalent spatial resolution. This result illustrates the potential of artificial quantum systems for sensitive detection and related applications.
description: Significantly revised and updated version of the manuscript is published in Nature Communications 3:1324 (2012)
Radial evolution of the wave-vector anisotropy of solar wind turbulence between 0.3 and 1 AU
Creators: name: He, Jiansen
name: Tu, Chuanyi
name: Marsch, Eckart
name: Bourouaine, Sofiane
name: Pei, Zhongtian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We present observations of the power spectral anisotropy in wave-vector space of solar wind turbulence, and study how it evolves in interplanetary space with increasing heliocentric distance. For this purpose we use magnetic field measurements made by the Helios-2 spacecraft at three positions between 0.29 and 0.9 AU. To derive the power spectral density (PSD) in $(k_\parallel, k_\bot)$-space based on single-satellite measurements is a challenging task not yet accomplished previously. Here we derive the spectrum $\rm{PSD}_{\rm{2D}}$($\rm{k}_\parallel$, $\rm{k}_\bot$) from the spatial correlation function $\rm{CF}_{\rm{2D}}(r_\parallel, r_\bot)$ by a transformation according to the projection-slice theorem. We find the so constructed PSDs to be distributed in k-space mainly along a ridge that is more inclined toward the $\rm{k}_\bot$ than $\rm{k}_\parallel$ axis, a new result which probably indicates preferential cascading of turbulent energy along the $\rm{k}_\bot$ direction. Furthermore, this ridge of the distribution is found to gradually get closer to the $\rm{k}_\bot$ axis, as the outer scale length of the turbulence becomes larger while the solar wind flows further away from the Sun. In the vicinity of the $\rm{k}_\parallel$ axis, there appears a minor spectral component that probably corresponds to quasi-parallel Alfvénic fluctuations. Their relative contribution to the total spectral density tends to decrease with radial distance. These findings suggest that solar wind turbulence undergoes an anisotropic cascade transporting most of its magnetic energy towards larger $\rm{k}_\bot$, and that the anisotropy in the inertial range is radially developing further at scales that are relatively far from the ever increasing outer scale.
Toxicological evaluation of ethanolic extract of leaves from Doliocarpus dentatus in Swiss mice
Creators: name: Branquinho, Lidiane Schultz
name: Verdan, Maria Helena
name: dos Santos, Elisangela
name: Macorini, Luis Fernando Benitez
name: Maris, Rafael Souza
name: Kuraoka-Oliveira, Angela Midori
name: Bacha, Flávia Barbieri
name: Cardoso, Claudia Andrea Lima
name: Arena, Arielle Cristina
name: Silva-Filho, Saulo Euclides
name: Kassuya, Cândida Aparecida Leite
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Doliocarpus dentatus (Dilleniaceae) has been used in folk medicine to treat inflammation and pain; however, studies evaluating its toxicity potential, as well as its effects on anxiety and depression, are scarce. This study investigated the toxicological profile of an ethanolic extract from leaves of D. dentatus (EEDd), and its effects on anxiety and depression models in mice. Male and female mice received either a single dose (500, 1000 or 2000 mg/kg) or repeated doses (75, 150 or 300 mg/kg) of EEDd by oral gavage. During the subacute toxicity assay, behavioral tests were performed on days 4, 14, 21 and 28. No evidence of toxicity was observed in the animals in both acute and subacute tests. However, males treated with the highest dose presented a reduction in the absolute weight of the kidney, an elevation in the AST levels, in addition to an alteration in the urea levels. The treatment did not affect other biochemical parameters, and did not induce any depressive-like behavior. EEDd exhibited low toxicity after single and repeated exposures. Since some analyzed parameters were compromised, further toxicity studies should be carried out.
k-Leibniz algebras from lower order ones: from Lie triple to Lie l-ple systems
Creators: name: de Azcarraga, J. A.
name: Izquierdo, J. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: Rings and Algebras (math.RA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Two types of higher order Lie $\ell$-ple systems are introduced in this paper. They are defined by brackets with $\ell > 3$ arguments satisfying certain conditions, and generalize the well known Lie triple systems. One of the generalizations uses a construction that allows us to associate a $(2n-3)$-Leibniz algebra $\fL$ with a metric $n$-Leibniz algebra $\tilde{\fL}$ by using a $2(n-1)$-linear Kasymov trace form for $\tilde{\fL}$. Some specific types of $k$-Leibniz algebras, relevant in the construction, are introduced as well. Both higher order Lie $\ell$-ple generalizations reduce to the standard Lie triple systems for $\ell=3$.
description: 22 pages, no figures
White dwarf-main sequence binaries from SDSS DR8: unveiling the cool white dwarf population
Creators: name: Rebassa-Mansergas, A.
name: Agurto-Gangas, C.
name: Schreiber, M. R.
name: Gaensicke, B. T.
name: Koester, D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The spectroscopic catalogue of white dwarf-main sequence (WDMS) binaries from the Sloan Digital Sky Survey (SDSS) is the largest and most homogeneous sample of compact binary stars currently known. However, because of selection effects, the current sample is strongly biased against systems containing cool white dwarfs and/or early type companions, which are predicted to dominate the intrinsic population. In this study we present colour selection criteria that combines optical (ugriz DR8 SDSS) plus infrared (yjhk DR9 UKIRT Infrared Sky Survey (UKIDSS), JHK Two Micron All Sky Survey (2MASS) and/or w1w2 Wide-Field Infrared Survey Explorer (WISE)) magnitudes to select 3419 photometric candidates of harbouring cool white dwarfs and/or dominant (M dwarf) companions. We demonstrate that 84 per cent of our selected candidates are very likely genuine WDMS binaries, and that the white dwarf effective temperatures and secondary star spectral types of 71 per cent of our selected sources are expected to be below
description: Accepted for publication in MNRAS, 13 pages, 7 figures
Maternal plasma fatty acid patterns in mid-pregnancy and offspring epigenetic gestational age at birth
Creators: name: Monasso, Giulietta S.
name: Voortman, Trudy
name: Felix, Janine F.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Cancer

description: Maternal pregnancy fatty acid status is associated with child health. Epigenetic gestational age acceleration, referring to a discrepancy between chronological and epigenetic gestational age, may underlie these associations. Previous research suggests that analysing fatty acid patterns rather than individual fatty acids may overcome the caveat of missing synergistic or additive effects. Among 1226 mother-newborn pairs from the population-based Generation R Study, we examined the associations of three maternal plasma mid-pregnancy fatty acid patterns, identified by principal component analysis, with offspring epigenetic gestational age acceleration. This was estimated from cord blood DNA methylation data using the method developed by Bohlin. As a secondary analysis, we used the method developed by Knight to estimate epigenetic gestational age. The identified ‘high n-6 polyunsaturated fatty acid,’ ‘monounsaturated and saturated fatty acid’ and ‘high n-3 polyunsaturated fatty acid’ patterns were not associated with epigenetic gestational age acceleration in the main analyses. In sensitivity analyses restricted to 337 children born to mothers with more accurate pregnancy dating based on a regular menstrual cycle, a one standard-deviation-score higher maternal plasma ‘high n-3 polyunsaturated fatty acid’ pattern was associated with an epigenetic gestational age acceleration of 0.20 weeks (95% CI 0.06, 0.33), but only when using the Knight method. Thus, we found some evidence that a maternal plasma fatty acid pattern characterized by higher concentrations of n-3 polyunsaturated fatty acids may be associated with accelerated epigenetic gestational ageing. These findings depended on the method used and the accuracy of pregnancy dating and therefore need confirmation.
Structure change, layer sliding, and metallization in high-pressure MoS$_{2}$
Creators: name: Hromadová, Liliana
name: Martoňák, Roman
name: Tosatti, Erio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Based on ab initio calculations and metadynamics simulations, we predict that 2H-MoS$_2$, a layered insulator, will metallize under pressures in excess of 20-30 GPa. In the same pressure range, simulations and enthalpy optimization predict a structural transition. Free mutual sliding of layers takes place at this transition, the original 2H$_c$ stacking changing to a 2H$_a$ stacking typical of 2H-NbSe$_2$, an event explaining for the first time previously mysterious X-ray diffraction and Raman spectroscopy data. Phonon and electron phonon calculations suggest that pristine MoS$_2$, once metallized, will require ultrahigh pressures in order to develop superconductivity.
description: 13 pages, 7 figures
Yoda Features and Demo
Creators: name: Lushaj, Borana
Publisher: name: Zenodo
Year: 2023
Subjects: Yoda, storage features, research data management

description: Short presentation about the Yoda storage tool features, and access, collaboration and project management options. Presentation given during the EUR Data Coffee Breaks at Erasmus University Rotterdam, on 08 June 2023. The presentation will be given again on 19 June, 2023.
Improved Anomaly Detection in Crowded Scenes via Cell-based Analysis of Foreground Speed, Size and Texture
Creators: name: Reddy, Vikas
name: Sanderson, Conrad
name: Lovell, Brian C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: I.2.10; I.4.6; I.4.8; I.5.4

description: A robust and efficient anomaly detection technique is proposed, capable of dealing with crowded scenes where traditional tracking based approaches tend to fail. Initial foreground segmentation of the input frames confines the analysis to foreground objects and effectively ignores irrelevant background dynamics. Input frames are split into non-overlapping cells, followed by extracting features based on motion, size and texture from each cell. Each feature type is independently analysed for the presence of an anomaly. Unlike most methods, a refined estimate of object motion is achieved by computing the optical flow of only the foreground pixels. The motion and size features are modelled by an approximated version of kernel density estimation, which is computationally efficient even for large training datasets. Texture features are modelled by an adaptively grown codebook, with the number of entries in the codebook selected in an online fashion. Experiments on the recently published UCSD Anomaly Detection dataset show that the proposed method obtains considerably better results than three recent approaches: MPPCA, social force, and mixture of dynamic textures (MDT). The proposed method is also several orders of magnitude faster than MDT, the next best performing method.
Majorana edge states in two atomic wires coupled by pair-hopping
Creators: name: Kraus, Christina V.
name: Dalmonte, Marcello
name: Baranov, Mikhail A.
name: Laeuchli, Andreas M.
name: Zoller, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present evidence for the existence of Majorana edge states in a number conserving theory describing a system of spinless fermions on two wires that are coupled by a pair hopping. Our analysis is based on the combination of a qualitative low energy approach and numerical techniques using the Density Matrix Renormalization Group. We also discuss an experimental realization of pair-hopping interactions in cold atom gases confined in optical lattices, and its possible alternative applications to quantum simulation.
Detection of Widespread Hot Ammonia in the Galactic Center
Creators: name: Mills, Elisabeth A. C.
name: Morris, Mark R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the detection of metastable inversion lines of ammonia from energy levels high above the ground state. We detect these lines in both emission and absorption toward fifteen of seventeen positions in the central 300 parsecs of the Galaxy. In total, we observe seven metastable transitions of ammonia: (8,8), (9,9), (10,10), (11,11), (12,12), (13,13) and (15,15), with energies (in Kelvins) ranging from 680 to 2200 K. We also map emission from ammonia (8,8) and (9,9) in two clouds in the Sgr A complex (M-0.02-0.07 and M-0.13-0.08), and we find that the line emission is concentrated toward the the dense centers of these molecular clouds. The rotational temperatures derived from the metastable lines toward M-0.02-0.07 and M-0.13-0.08 and an additional cloud (M0.25+0.01) range from 350 to 450 K. Similarly highly-excited lines of ammonia have previously been observed toward Sgr B2, where gas with kinetic temperatures of ~600 K has been inferred. Our observations show that the existence of a hot molecular gas component is not unique to Sgr B2, but rather appears common to many Galactic center molecular clouds. In M-0.02-0.07, we find that the hot ammonia, contributes ~10% of the cloud's total ammonia column density, and further, that the hot ammonia in this cloud arises in gas which is extended or uniformly distributed on ~10 arcsecond scales. We discuss the implications of these constraints upon the nature of this hot gas component. In addition to the detection of hot metastable ammonia line emission, we also detect for the first time emission from nonmetastable inversion transitions of ammonia in both M-0.02-0.07 and M-0.13-0.08.
description: Submitted to ApJ on April 12, 2013
Υδρογόνωση/υδρογονόλυση γλυκόζης προς αλκοόλες σακχάρων με καταλυτές Pt/Ru υποστηριγμένους σε μικρο/μεσοπορώδεις άνθρακες
Creators: name: Rekos, Kyriazis
name: Margellou, Antigoni
name: Triantafyllidis, Konstantinos
Publisher: name: Zenodo
Year: 2022

description: Poster presentation "Υδρογόνωση/υδρογονόλυση γλυκόζης προς αλκοόλες σακχάρων με καταλυτές Pt/Ru υποστηριγμένους σε μικρο/μεσοπορώδεις άνθρακες" at the 16th Panhellenic Symposium on Catalysis
Verification of TG-61 dose for synchrotron-produced monochromatic x-ray beams using fluence-normalized MCNP5 calculations
Creators: name: Brown, Thomas A. D.
name: Hogstrom, Kenneth R.
name: Alvarez, Diane
name: Matthews, Kenneth L.
name: Ham, Kyungmin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Ion chamber dosimetry is being used to calibrate dose for cell irradiations designed to investigate photoactivated Auger electron therapy at the Louisiana State University CAMD synchrotron facility. This study performed a dosimetry intercomparison for synchrotron-produced monochromatic x-ray beams at 25 and 35 keV. Ion chamber depth-dose measurements in a PMMA phantom were compared with the product of MCNP5 Monte Carlo calculations of dose per fluence and measured incident fluence. Monochromatic beams of 25 and 35 keV were generated on the tomography beamline at CAMD. A cylindrical, air-equivalent ion chamber was used to measure the ionization created in a 10x10x10-cm3 PMMA phantom for depths from 0.6 to 7.7 cm. The American Association of Physicists in Medicine TG-61 protocol was applied to convert measured ionization into dose. Photon fluence was determined using a NaI detector to make scattering measurements of the beam from a thin polyethylene target at angles 30 degrees to 60 degrees. Differential Compton and Rayleigh scattering cross sections obtained from xraylib, an ANSI C library for x-ray-matter interactions, were applied to derive the incident fluence. MCNP5 simulations of the irradiation geometry provided the dose deposition per photon fluence as a function of depth in the phantom. At 25 keV the fluence-normalized MCNP5 dose overestimated the ion-chamber measured dose by an average of 7.2+/-3.0% to 2.1+/-3.0% for PMMA depths from 0.6 to 7.7 cm, respectively. At 35 keV the fluence-normalized MCNP5 dose underestimated the ion-chamber measured dose by an average of 1.0+/-3.4% to 2.5+/-3.4%, respectively. These results showed that TG-61 ion chamber dosimetry, used to calibrate dose output for cell irradiations, agreed with fluence-normalized MCNP5 calculations to within approximately 7% and 3% at 25 and 35 keV, respectively.
description: 22 pages, 5 figures
title: Was ist ein Bodendenkmal? - Archäologie und Recht. Horn, H.G., Kier, H., Kunow, J., & B . Trier (Hrsg.). Schriften zur Bodendenkmalpflege in NRW 2. Kolloquium Münster 1989. Mainz 1991
Creators: name: Lenz, Karl Heinz
Publisher: name: University Library Heidelberg
Year: 2015

description: Rezension zu: Was ist ein Bodendenkmal? - Archäologie und Recht. Horn, H.G., Kier, H., Kunow, J., & B . Trier (Hrsg.). Schriften zur Bodendenkmalpflege in NRW 2. Kolloquium Münster 1989. Verlag Phillip von Zabern, Mainz 1991. ISBN 3-8053-1391-5, 185 Seiten, 53 Farb- u. 76 Schwarzweißabbildungen.
title: Macht der Vergangenheit - wer macht Vergangenheit. Archäologie und Politik. Beiträge zur Ur- und Frühgeschichte Mitteleuropas 3. Herausgegeben von Sabine Wolfram und Ulrike Sommer. Wilkau-Haßlau 1993
Creators: name: Bernbeck, Reinhard
name: Heinz, Marlies
Publisher: name: University Library Heidelberg
Year: 2015

description: Rezension zu: Macht der Vergangenheit - wer macht Vergangenheit. Archäologie und Politik. Beiträge zur Urund Frühgeschichte Mitteleuropas 3. Herausgegeben von Sabine Wolfram und Ulrike Sommer. Mit Beiträgen und Kommentaren von Jonas Beran, Jörg Biel, Frank G. Fetten, Heimich Harke, Cornelius Holtorf, Jörn Jacobs, Martin Schmidt, Ulrike Sommer, Thomas Stern, Ruth Struwe, Rolf Voß und Sabine Wolfram. Verlag Beier & Beran. WilkauHaßlau 1993. Format DinA4. 96 Seiten. ISBN 3-930036-02-9.
Experimental observation of chaos-chaos intermittency types in spherical Couette flow
Creators: name: Zhilenko, Dmitry
name: Krivonosova, Olga
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Flows between concentric, counter rotating spherical boundaries are under investigation in the gap with size equal to inner sphere radius. Outer sphere rotational rate is fixed, while inner sphere rotational rate has time periodic variations. The amplitudes and frequencies of these variations are small relative to both spheres averaged rotational rates. With amplitude increase transition from initial periodical flow to chaos is occurred. To determine state of the flow time series of azimuthal velocity, taken with laser Doppler anemometry, were used. We demonstrate appearance of flow states in the form of chaos-chaos and cycle-chaos-chaos intermittency. A procedure is considered which allow quantitatively confirm distinct properties of different patterns of time alternating flow state with intermittency.
description: 9 pages, 3 figures
title: Human skeletal remains and multi-phase partial burials of the Aunjetitz culture in the northern foreland of the Harz mountains (Lower Saxony)
Creators: name: Heske, Immo
name: Grefen-Peters, Silke
Publisher: name: University Library Heidelberg
Year: 2015

description: Zerteilte Bestattungen und unvollständige Skelette in Siedlungsgruben sind aus Mitteldeutschland für die jüngere Bronze- und frühe Eisenzeit schon lange bekannt. Im Braunschweiger Land liefert ein Bestattungsplatz der Aunjetitzer Kultur bei Watenstedt (Lkr. Helmstedt) mit über 20 Individuen bereits für die frühe Bronzezeit Belege für ein mehrstufiges Bestattungsritual. Die anthropologischen Untersuchungen geben Einblicke in den Umgang mit den Verstorbenen und die Niederlegung der Knochen. Die Zusammenführung von Befunden auf Gräberfeldern und aus Siedlungen deutet an, dass bereits in der Aunjetitzer Kultur einige Tote erst nach einem mehrphasigen Bestattungsritual endgültig beigesetzt worden sind.
description: Cut-up burials and incomplete skeletons in settlement pits are well-known for the Younger Bronze Age and Early Iron Age in Central Germany. In the Braunschweiger Land a cemetery of the Aunjetitz culture with more than 20 individuals at Watenstedt (Lkr. Helmstedt) was found, providing evidence for a multi-phase burial rite for as early as the Early Bronze Age. The anthropologic analyses allow an insight into how deceased were treated and bones were deposed. The consideration of finds from cemeteries as well as from settlements indicates that already in the Aunjetitz culture some dead were buried in the ground only after a multi-phase funeral ritual.
title: MRI brain findings in a case of uremic encephalopathy
Creators: name: Gupta, Neeti
Publisher: name: EURORAD
Year: 2023
Subjects: subject: Neuroradiology
subject: Anatomy
subject: CNS
subject: Neuroradiology brain
subject: MR
subject: Metabolic disorders
subject: Clinical Cases

description: Clinical History: A 46-year-old diabetic female who is a known case of chronic kidney disease on hemodialysis, presented with recent onset complaints of slurring of speech, difficulty in walking and slowing of gait. No history of alcohol or any substance abuse. Her laboratory results revealed elevated levels of serum creatinine and blood urea levels. 

MRI brain was done to look for an answer to this clinical scenario.

description: 46 years, female
title: Degradation of Bile Acids by Soil and Water Bacteria
Creators: name: Müller, Franziska Maria
name: Holert, Johannes
name: Yücel, Onur
name: Philipp, Bodo
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2022
Subjects: subject: 570 Biology

description: Bile acids are surface-active steroid compounds with a C5 carboxylic side chain at the steroid nucleus. They are produced by vertebrates, mainly functioning as emulsifiers for lipophilic nutrients, as signaling compounds, and as an antimicrobial barrier in the duodenum. Upon excretion into soil and water, bile acids serve as carbon- and energy-rich growth substrates for diverse heterotrophic bacteria. Metabolic pathways for the degradation of bile acids are predominantly studied in individual strains of the genera 'Pseudomonas', 'Comamonas', 'Sphingobium', 'Azoarcus', and 'Rhodococcus'. Bile acid degradation is initiated by oxidative reactions of the steroid skeleton at ring A and degradation of the carboxylic side chain before the steroid nucleus is broken down into central metabolic intermediates for biomass and energy production. This review summarizes the current biochemical and genetic knowledge on aerobic and anaerobic degradation of bile acids by soil and water bacteria. In addition, ecological and applied aspects are addressed, including resistance mechanisms against the toxic effects of bile acids.
description: Finanziert durch den Open-Access-Publikationsfonds der Westfälischen Wilhelms-Universität Münster (WWU Münster).
title: »Druzhina« graves dating to the time around AD 1000 from Pìdgìrcì (western Ukraine)
Creators: name: Liwoch, Radosław
name: Müller-Wille, Michael
Publisher: name: University Library Heidelberg
Year: 2015

description: In den Jahren 1881-1882 grub der Krakauer Archäologe T. Ziemieçki zwei Doppelgräber unter Hügeln aus, die zu dem Gräberfeld des umfangreichen Burgwall- und Siedlungskomplexes von Pìdgìrcì (poln. Podhorce) in der westlichen Ukraine gehören. Es handelt sich jeweils um eine Frauen- und eine Männerbestattung mit reichen Beigaben, die zurzeit neu bearbeitet werden. Eingehender werden die Schwerter vom Typ S und Typ V (nach Petersen) sowie ihre Parallelen besprochen. Die Grabfunde weisen auf Mitglieder der fürstlichen Gefolgschaft (Druschina) in der Zeit der Christianisierung um 1000 im südwestlichen Randgebiet der Kiever Rus’. Damals hat sich vermutlich die polnisch-altrussische Grenze zwischen Bug und Weichsel ausgebildet, die nicht nur eine Trennzone zwischen den Herrschaftsterritorien der Piasten und Rurikiden sowie ihrer Nachfolger, sondern auch zwischen lateinischem und byzantinischem (orthodoxem) Christentum darstellte.
description: In 1881-1882, the Cracow archaeologist T. Ziemieçki excavated two double graves covered by burial mounds in the cemetery of the extensive hillfort and settlement complex at Pìdgìrcì (Polish Podhorce) in western Ukraine. Each double grave contained the burial of a man and a woman, with abundant grave-goods that are now being reanalysed. Two swords, Petersen’s Type S and Type V, are discussed here and compared with similar finds. The burials seem to be those of members of the princely retinue (druzhina) around 1000, at the time when the south western border area of Kievan Rus’ was being converted to the Christian religion. The Polish-Old Russian frontier between the Bug and Vistula rivers presumably took shape at this time and not only formed the boundary between the territories of the Piasts and Rurikids and their successors but also between Latin and Byzantine (Orthodox) Christianity.
Recipe theorem for the Tutte polynomial for matroids, renormalization group-like approach
Creators: name: Duchamp, Gérard H. E.
name: Hoang-Nghia, Nguyen
name: Krajewski, Thomas
name: Tanasa, Adrian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Using a quantum field theory renormalization group-like differential equation, we give a new proof of the recipe theorem for the Tutte polynomial for matroids. The solution of such an equation is in fact given by some appropriate characters of the Hopf algebra of isomorphic classes of matroids, characters which are then related to the Tutte polynomial for matroids. This Hopf algebraic approach also allows to prove, in a new way, a matroid Tutte polynomial convolution formula appearing in W. Kook {\it et. al., J. Comb. Series} {\bf B 76} (1999).
description: 14 pages, 3 figures