cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Corporate Identity in a globalized world. A study of elements marking national identity on cleantech company websites
Creators: name: Larsen, Aase Voldgaard
name: Pedersen, Anne Grethe Julius
Publisher: name: Globe: A Journal of Language, Culture and Communication
Year: 2016

description: This paper presents a study of nationality used by companies as a positioning parameter in their market communication. The study takes its point of departure in the field of tension between globalization and national identity in corporate communication. On the one hand, companies may see themselves as global players with no disposition to accentuate a national affiliation. On the other hand, national origin has for many years been used with the purpose of achieving a competitive advantage. In research, it has been questioned if this awareness of national origin will continue in the globalized world. The study focuses on the cleantech industry as a relatively young industry analyzing German, Danish, British and US-American company websites, 256 altogether. The analysis encompasses the use of national flags or colours, internet domain, language and reference to a specific country. In brief, the study shows, among other things, that national identity is still, to some extent, regarded a valuable positioning parameter. Especially the Danish websites display elements marking national identity.
description: Globe: A Journal of Language, Culture and Communication, Vol 3 (2016)
Beneficios y utilidades del flamenco en programas de rehabilitación de drogodependientes por cannabis
Creators: name: Buzón Ruiz, José Manuel
name: Cernuda-Lago, Amador
Publisher: name: Zenodo
Year: 2024

description: Scientific article published in RIC Revista de Información Científica. Journal of Medical and Health Sciences. Volume 103, nº 2 (2024) Indexed in the Latindex V2.0 catalogue.
The force of MOFs: The potential of switchable metal-organic frameworks as solvent stimulated actuators
Creators: name: Freund, Pascal
name: Senkovska, Irena
name: Zheng, Bin
name: Bon, Volodymyr
name: Krause, Beate
name: Maurin, Guillaume
name: Kaskel, Stefan
Publisher: name: Cambridge : RSC
Year: 2020
Subjects: subject: Expansion
subject: Organometallics
subject: 540

description: We evaluate experimentally the force exerted by flexible metal-organic frameworks through expansion for a representative model system, namely MIL-53(Al). The results obtained are compared with data collected from intrusion experiments while molecular simulations are performed to shed light on the re-opening of the guest-loaded structure. The critical impact of the transition stimulating medium on the magnitude of the expansion force is demonstrated.
Modeling of Thermal Emission from ULX Pulsar Swift J0243.6+6124 with General Relativistic Radiation MHD simulations
Creators: name: Inoue, Akihiro
name: Ohsuga, Ken
name: Takahashi, Hiroyuki R.
name: Asahina, Yuta
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We perform general relativistic radiation magnetohydrodynamics (MHD) simulations of super-Eddington accretion flows around a neutron star with a dipole magnetic field for modeling the galactic ultra-luminous X-ray source (ULX) exhibiting X-ray pulsations, Swift J0243.6+6124. Our simulations show the accretion columns near the magnetic poles, the accretion disk outside the magnetosphere, and the outflows from the disk. It is revealed that the effectively optically thick outflows, consistent with the observed thermal emission at $\sim10^7$ K, are generated if the mass accretion rate is much higher than the Eddington rate $\dot{M}_{\rm Edd}$ and the magnetospheric radius is smaller than the spherization radius. In order to explain the blackbody radius ($\sim 100-500$ km) without contradicting the reported spin period ($9.8~{\rm s}$) and spin-up rate ($\dot{P}=-2.22\times10^{-8}~{\rm s~s^{-1}}$), the mass accretion rate of $(200-1200)\dot{M}_{\rm Edd}$ is required. Since the thermal emission was detected in two observations with $\dot{P}$ of $-2.22\times10^{-8}~{\rm s~s^{-1}}$ and $-1.75\times10^{-8}~{\rm s~s^{-1}}$ but not in another with $\dot{P}=-6.8 \times10^{-9}~{\rm s~s^{-1}}$, the surface magnetic field strength of the neutron star in Swift J0243.6+6124 is estimated to be between $3\times10^{11}~{\rm G}$ and $4\times10^{12}~{\rm G}$. From this restricted range of magnetic field strength, the accretion rate would be $(200-500)\dot{M}_{\rm Edd}$ when the thermal emission appears and $(60-100)\dot{M}_{\rm Edd}$ when it is not detected. Our results support the hypothesis that the super-Eddington phase in the 2017-2018 giant outburst of Swift J0243.6+6124 is powered by highly super-Eddington accretion flows onto a magnetized neutron star.
description: 24 pages, 9 figures, 2 tables, accepted for publication in ApJ
Two-loop electroweak vertex corrections for polarized Møller scattering
Creators: name: Aleksejevs, A. G.
name: Barkanova, S. G.
name: Bystritskiy, Yu. M.
name: Kuraev, E. A.
name: Zykunov, V. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The contributions to the electron-electron-photon vertex of two-loop electroweak corrections are calculated. The relative correction to the parity-violating asymmetry of Møller scattering for the case of 11 GeV electron scattered off the electron at rest is found to be about -0.0034 and should be taken into account at future experiment MOLLER at JLab.
description: 9 pages, 1 figure. arXiv admin note: text overlap with arXiv:1504.03560
Phase I/II Trial of Dose-Escalated Busulfan Delivered by Prolonged Continuous Infusion in Allogeneic Transplant Patients
Creators: name: Chung, Yunro
name: Sarantopoulos, Stefanie
name: Shea, Thomas C.
name: Walko, Christine
name: Serody, Jonathan
name: Wood, William
name: Rao, Kamakshi
name: Comeau, Terry
name: Sheets, Julia
name: Coghill, James
name: Armistead, Paul
name: Gabriel, Don
name: Ivanova, Anastasia
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Intensive chemotherapy or chemotherapy plus irradiation and allogeneic stem cell transplantation can be curative for patients with hematologic diseases. Reduced intensity transplants can also achieve cure, and result in less treatment related mortality but higher relapse rates. Thus, optimizing the conditioning regimens used in allogeneic transplantation remains an important goal. We conducted a Phase I/II trial to determine the maximum tolerated dose (MTD) and dose limiting toxicities (DLT) of a continuous infusion of busulfan over 90 hours in conjunction with fludarabine followed by allogeneic related or unrelated donor transplant. Fifty-four patients with advanced hematologic malignancies were enrolled on this study. The MTD was identified as a 24 hour area under the curve (AUC) of approximately 7095 uMmin which represents a 43% increase over the standard total daily AUC dose of 4800 uMmin given by intermittent schedules. DLTs at doses over 8000 uMmin were identified as a desquamative skin rash and mucositis. No dose-related increase in hepatic, pulmonary or other organ toxicies were seen while efficacy appeared to be improved at higher dose levels. Continuous infusion busulfan with intermittent fludarabine provides an alternative treatment strategy that is generally well tolerated and permits an increase in total busulfan dose with encouraging efficacy.
Effects of high energy electrons on the properties of polyethylene / multiwalled carbon nanotubes composites: Comparison of as-grown and oxygen-functionalised MWCNT
Creators: name: Krause, Beate
name: Pötschke, Petra
name: Gohs, U.
Publisher: name: Melville, NY : AIP
Year: 2014
Subjects: subject: coupling agent
subject: electron-induced reactive processing
subject: melt compounding
subject: MWCNT
subject: polyethylene
subject: Konferenzschrift
subject: 530

description: Polymer modification with high energy electrons (EB) is well established in different applications for many years. It is used for crosslinking, curing, degrading, grafting of polymeric materials and polymerisation of monomers. In contrast to this traditional method, electron induced reactive processing (EIReP) combines the polymer modification with high energy electrons and the melt mixing process. This novel reactive method was used to prepare polymer blends and composites. In this study, both methods were used for the preparation of polyethylene (PE)/ multiwalled carbon nanotubes (MWCNT) composites in the presence of a coupling agent. The influence of MWCNT and type of electron treatment on the gel content, the thermal conductivity, rheological, and electrical properties was investigated whereby as-grown and oxidised MWCNT were used. In the presence of a coupling agent and at an absorbed dose of 40 kGy, the gel content increased from 57 % for the pure PE to 74 % or 88 % by the addition of as-grown (Baytubes® C150P) or oxidised MWCNT, respectively. In comparison to the composites containing the as-grown MWCNTs, the use of the oxidised MWCNTs led to higher melt viscosity and higher storage modulus due to higher yield of filler polymer couplings. The melt viscosity increased due to the addition of MWCNT and crosslinking of PE. The thermal conductivity increased to about 150 % and showed no dependence on the kind of MWCNT and the type of electron treatment. In contrast, the lowest value of electrical volume resistivity was found for the non-irradiated samples and after state of the art electron treatment without any influence of the type of MWCNT. In the case of EIReP, the volume resistivity increased by 2 (as-grown MWCNT) or 3 decades (oxidised MWCNT) depending on the process parameters. © 2014 American Institute of Physics.
The core starbursts of the galaxy NGC 3628: Radio very long baseline interferometry and X-ray studies
Creators: name: Yang, Xiaolong
name: Ou, Ziwei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present radio very long baseline interferometry (VLBI) and X-ray studies of the starburst galaxy NGC 3628. The VLBI observation at 1.5 GHz reveals seven compact (0.7$-$7 parsec) radio sources in the central $\sim$250 parsec region of NGC 3628. Based on their morphology, high radio brightness temperatures ($10^5-10^7$ K), and steep radio spectra, none of these seven sources can be associated with active galactic nuclei (AGNs); instead, they can be identified as supernova remnants (SNRs), with three of them appearing consistent with partial shells. Notably, one of them (W2) is likely a nascent radio supernova and appears to be consistent with the star formation rate of NGC 3628 when assuming a canonical initial mass function. The VLBI observation provides the first precise measurement of the diameter of the radio sources in NGC 3628, which allow us to fit a well-constrained radio surface brightness - diameter ($Σ-D$) correlation by including the detected SNRs. Furthermore, future VLBI observations can be conducted to measure the expansion velocity of the detected SNRs. In addition to our radio VLBI study, we analyze Chandra and XMM-Newton spectra of NGC 3628. The spectral fitting indicates that the SNR activities could well account for the observed X-ray emissions. Along with the Chandra X-ray image, it further reveals that the X-ray emission is likely maintained by the galactic-scale outflow triggered by SN activities. These results provide strong evidence that SN-triggered activities play a critical role in generating both radio and X-ray emissions in NGC 3628 and further suggest that the galaxy NGC 3628 is in an early stage of starbursts.
description: 15 pages, 4 Tables and 6 Figures, accepted for publication in ApJ
Development of a polymer composite with high electrical conductivity and improved impact strength for the application as bipolar plate
Creators: name: Hopmann, C.
name: Windeck, C.
name: Cohnen, A.
name: Onken, J.
name: Krause, Beate
name: Pötschke, Petra
name: Hickmann, T.
Publisher: name: Melville, NY : AIP
Year: 2016
Subjects: subject: Electrical conductivity
subject: Electrical properties and parameters
subject: Fuel cell technology
subject: Materials forming
subject: Polymers
subject: Carbon based materials
subject: Konferenzschrift
subject: 530

description: Bipolar plates constitute the most important structural component in fuel cell stacks. Highly filled thermoplastic composites with high electrical conductivity obtain an increasing importance in the design of bipolar plates as alternative to conventional metallic systems. Thermoplastics (e.g. PP) have suitable properties such as a good processability, chemical resistance, light weight and low production costs. As thermoplastics have low electrical conductivities, conductive fillers have to be included in the matrix. A high content of such fillers (e.g. graphite) in excess of 80 wt.-% is necessary to achieve the desired electrical properties. However, materials with such high filler contents embrittle readily. The workability in injection and compression molding is difficult and the mechanical stability is insufficient in case of strain deformation. As consequence, material failure and an inacceptable amount of damaged goods can be observed during the processing. As no suitable thermoplastic system is available for better mechanical properties, the induction and dispersion of a rubber phase in the thermoplastic matrix can be used to increase the impact strength of the conductive composite. In this research work a ternary composite, based on PP as matrix, EPDM as impact modifier and synthetic graphite as conductive filler, was developed. The material was produced using a 26 mm co-rotating, intermeshing twin-screw extruder. The amounts of PP, EPDM and graphite were varied systematically and a process window was defined that enables improved impact strength and high electrical conductivity of the new material. The results indicate that impact strength can be enhanced by about 99 % with an EPDM content of 30 wt.-% in the PP matrix. The electrical conductivity decreases in a small range with increasing content of EPDM, but the conductivity is still excellent for producing bipolar plates.
Probing the Temperature Structure of the Inner Region of a Protoplanetary Disk
Creators: name: Ueda, Takahiro
name: Okuzumi, Satoshi
name: Kataoka, Akimasa
name: Flock, Mario
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Midplane heating induced by disk accretion plays a key role in determining the disk temperature particularly at the inner disk midplane where planets form. However, the efficiency of accretion heating has been not well constrained by observations. We construct two-dimensional models of the Class II disk around CW Tau, taking into account the midplane heating. The models are compared with the ALMA dust continuum observations at Bands 4, 6, 7 and 8, with an angular resolution of 0.1 arcsec. The observed brightness temperatures are almost wavelength-indenpendent at $\lesssim$10 au. We find that if the maximum dust size $a_{\rm max}$ is $\lesssim100~{\rm μm}$, the brightness temperatures predicted by the model exceed the observed values, regardless of the efficiency of accretion heating. The low observed brightness temperatures can be explained if millimeter scattering reduces the intensity. If the disk is passive, $a_{\rm max}$ needs to be either $\sim150~{\rm μm}$ or $\gtrsim$ few ${\rm cm}$. The accretion heating significantly increases the brightness temperature particularly when $a_{\rm max}\lesssim300~{\rm μm}$, and hence $a_{\rm max}$ needs to be either $\sim300~{\rm μm}$ or $\gtrsim$ few ${\rm cm}$. The midplane temperature is expected to be $\sim$1.5-3 times higher than the observed brightness temperatures, depending on the models. The dust settling effectively increases the temperature of the dust responsible for the millimeter emission in the active disk, which makes the model with $300~{\rm μm}$-sized dust overpredicts the brightness temperatures when strong turbulence is absent. Porous dust (porosity of 0.9) makes the accretion heating more efficient so that some sort of reduction in accretion heating is required. Future longer wavelength and higher angular resolution observations will help us constrain the heating mechanisms of the inner protoplanetary disks.
description: 19 pages, 25 figures, accepted for publication in A&A
Frequency-Bin Entanglement with Tunable Phase
Creators: name: Guo, Xianxin
name: Chen, Peng
name: Shu, Chi
name: Loy, M. M. T.
name: Du, Shengwang
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe a technique to produce narrow-band photon pairs with frequency-bin entanglement, whose relative phase can be tuned using linear polarization optics. We show that, making use of the polarization-frequency coupling effect, the phase of a complex polarizer can be transferred into the frequency entanglement.
Electrical and thermal conductivity of polypropylene filled with combinations of carbon fillers
Creators: name: Krause, Beate
name: Pötschke, Petra
Publisher: name: Melville, NY : AIP
Year: 2016
Subjects: subject: Thermal conductivity
subject: Electrical conductivity
subject: Composite materials
subject: Polymers
subject: Carbon based materials
subject: Nanomaterials
subject: Nanotubes
subject: Chemical elements
subject: Konferenzschrift
subject: 530

description: The thermal and electrical conductivity of polymer composites filled with a low content up to 7.5 vol% of different carbon fillers (carbon nanotubes, carbon fibers, graphite nanoplates) were investigated. It was found that the combination of two or three carbon fillers leads to an increase of thermal conductivity up to 193% which is higher than the sum of the effects of both fillers.
Reconciling charmonium production and polarization data within the nonrelativistic QCD framework
Creators: name: Sun, Zhan
name: Zhang, Hong-Fei
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A thorough study reveals that the only key parameter for $ψ$ ($J/ψ$, $ψ'$) polarization is the ratio $\langle O^ψ(^3S_1^{[8]})\rangle/\langle O^ψ(^3P_0^{[8]})\rangle$, if the velocity scaling rule holds. The fit of the yield data is incapable of the determination of this parameter. We provide a universal approach to fixing the long-distance matrix elements (LDMEs) for the $J/ψ$ and $ψ'$ production. Further, with the existing data, we implement this approach, and obtain a favorable set of the LDMEs, and manage to reconcile the charmonia production and polarization experiment. A quantitative analysis indicates that theoretical corrections to the short-distance coefficients change only the values of the LDMEs but not the phenomenological results.
Scalable Lossless Coding of Dynamic Medical CT Data Using Motion Compensated Wavelet Lifting with Denoised Prediction and Update
Creators: name: Lanz, Daniela
name: Schilling, Franz
name: Kaup, André
Publisher: name: arXiv
Year: 2023
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Professional applications like telemedicine often require scalable lossless coding of sensitive data. 3-D subband coding has turned out to offer good compression results for dynamic CT data and additionally provides a scalable representation in terms of low- and highpass subbands. To improve the visual quality of the lowpass subband, motion compensation can be incorporated into the lifting structure, but leads to inferior compression results at the same time. Prior work has shown that a denoising filter in the update step can improve the compression ratio. In this paper, we present a new processing order of motion compensation and denoising in the update step and additionally introduce a second denoising filter in the prediction step. This allows for reducing the overall file size by up to 4.4%, while the visual quality of the lowpass subband is kept nearly constant.
Non-factorizable virtual corrections to Higgs boson production in weak boson fusion beyond the eikonal approximation
Creators: name: Long, Ming-Ming
name: Melnikov, Kirill
name: Quarroz, Jérémie
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Non-factorizable virtual corrections to Higgs boson production in weak boson fusion at next-to-next-to-leading order in QCD were estimated in the eikonal approximation [1]. This approximation corresponds to the expansion of relevant amplitudes around the forward limit. In this paper we compute the leading power correction to the eikonal limit and show that it is proportional to first power of the Higgs boson transverse momentum or the Higgs boson mass over partonic center-of-mass energy. Moreover, this correction can be significantly enhanced by the rapidity of the Higgs boson. For realistic weak boson fusion cuts, the next-to-eikonal correction reduces the estimate of non-factorizable contributions to fiducial cross section by O(30) percent.
description: 26 pages, 6 figures
Reduced-Intensity Allografting as First Transplantation Approach in Relapsed/Refractory Grades One and Two Follicular Lymphoma Provides Improved Outcomes in Long-Term Survivors
Creators: name: Bachanova, Veronika
name: Carreras, Jeanette
name: Klein, Andreas
name: Ganguly, Siddhartha
name: Hamadani, Mehdi
name: Wood, William A.
name: Usmani, Saad Z.
name: D'Souza, Anita
name: Kröger, Nicolaus M.
name: Gale, Robert Peter
name: Hertzberg, Mark S.
name: Bashey, Asad
name: Mussetti, Alberto
name: Maloney, David G.
name: Bacher, Ulrike
name: Kharfan-Dabaja, Mohamed A.
name: Lazarus, Hillard M.
name: Ahn, Kwang Woo
name: Cohen, Jonathon B.
name: Smith, Sonali M.
name: Hari, Parameswaran N.
name: Laport, Ginna G.
name: Holmberg, Leona A.
name: Sureda, Anna M.
name: Vij, Ravi
name: Ku, Grace H.
name: Miller, Alan M.
name: Klyuchnikov, Evgeny
name: Freytes, César O.
name: Olsson, Richard F.
name: Slavin, Shimon
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Comparison of long-term outcomes in patients with refractory/relapsed grade 1-2 follicular lymphoma (FL) after allogeneic (allo-HCT) vs. autologous hematopoietic cell transplantation (auto-HCT) in the rituximab-era.
Polymer - Carbon nanotube composites for thermoelectric applications
Creators: name: Luo, J.
name: Krause, Beate
name: Pötschke, Petra
Publisher: name: Melville, NY : AIP
Year: 2017
Subjects: subject: Electrical conductivity
subject: Polymers
subject: Thermoelectric effects
subject: Nanotubes
subject: Ionic liquids
subject: Industry
subject: Konferenzschrift
subject: 530

description: The thermoelectric (TE) performance of electrically conductive thermoplastic composites prepared by melt mixing was investigated. A cost effective widely used in industry polymer, namely polypropylene (PP), was chosen as the matrix to fabricate the composites. Singlewalled carbon nanotubes (SWCNTs), the amount (2 wt%) of which was selected to be above the electrical percolation threshold (< 0.2 wt%), were used to form an electrical conducting network. Besides as-produced SWCNTs plasma modified tubes were employed to study the influence of the functionalization on the morphology, dispersion and TE properties of the PP composites. In addition, melt processing conditions, e.g. temperature, rotation speed, and time during mixing in a small-scale compounder were varied. Furthermore, an ionic liquid (IL, 1-methyl-3-octylimidazolium tetrafluoroborate) was used as a processing additive during melt mixing, which was confirmed to improve the electrical conductivity of the composites. Simultaneous increase in the Seebeck coefficient up to a value of 64 μV/K was recorded, leading to a much better power factor of 0.26 μW/(m·K2) compared to composites without IL. This melt mixing strategy opens new avenues for solvent-free, large scale fabrication of polymer based TE materials.
Realization of a Hopf insulator in circuit systems
Creators: name: Wang, Zhu
name: Zeng, Xu-Tao
name: Biao, Yuanchuan
name: Yan, Zhongbo
name: Yu, Rui
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Three-dimensional (3D) two-band Hopf insulators are a paradigmatic example of topological phases beyond the topological classifications based on powerful methods like $K$-theory and symmetry indicators.Since this class of topological insulating phases was theoretically proposed in 2008, they have attracted significant interest owing to their conceptual novelty, connection to knot theory, and many fascinating physical properties. However, because their realization requires special forms of long-range spin-orbit coupling (SOC), they have not been achieved in any 3D system yet. Here we report the first experimental realization of the long-sought-after Hopf insulator in a 3D circuit system. To implement the Hopf insulator, we construct basic pseudo-spin modules and connection modules that can realize $2\times2$-matrix elements and then design the circuit network according to a tight-binding Hopf insulator Hamiltonian constructed by the Hopf map. By simulating the band structure of the designed circuit network and calculating the Hopf invariant, we find that the circuit realizes a Hopf insulator with Hopf invariant equaling $4$. Experimentally, we measure the band structure of a printed circuit board and find the observed properties of the bulk bands and topological surface states (TSS) are in good agreement with the theoretical predictions, verifying the bulk-boundary correspondence of the Hopf insulator. Our scheme brings the experimental study of Hopf insulators to reality and opens the door to the implementation of more unexplored topological phases beyond the known topological classifications.
A panoptic view of the Taurus molecular cloud I. The cloud dynamics revealed by gas emission and 3D dust
Creators: name: Soler, J. D.
name: Zucker, C.
name: Peek, J. E. G.
name: Heyer, M.
name: Goldsmith, P. F.
name: Glover, S. C. O.
name: Molinari, S.
name: Klessen, R. S.
name: Hennebelle, P.
name: Testi, L.
name: Colman, T.
name: Benedettini, M.
name: Elia, D.
name: Mininni, C.
name: Pezzuto, S.
name: Schisano, E.
name: Traficante, A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a study of the three-dimensional (3D) distribution of interstellar dust derived from stellar extinction observations toward the Taurus molecular cloud (MC) and its relation with the neutral atomic hydrogen (HI) emission at 21 cm wavelength and the carbon monoxide $^{12}$CO and $^{13}$CO emission in the $J=1\rightarrow0$ transition. We used the histogram of oriented gradients (HOG) method to match the morphology in a 3D reconstruction of the dust density (3D dust) and the distribution of the gas tracers' emission. The result of the HOG analysis is a map of the relationship between the distances and radial velocities. The HOG comparison between the 3D dust and the HI emission indicates a morphological match at the distance of Taurus but an anti-correlation between the dust density and the HI emission, which uncovers a significant amount of cold HI within the Taurus MC. The HOG between the 3D dust and $^{12}$CO reveals a pattern in radial velocities and distances that is consistent with converging motions of the gas in the Taurus MC, with the near side of the cloud moving at higher velocities and the far side moving at lower velocities. This convergence of flows is likely triggered by the large-scale gas compression caused by the interaction of the Local Bubble and the Per-Tau shell, with Taurus lying at the intersection of the two bubble surfaces.
description: 18 pages, 21 figures. Accepted for publication in Astronomy & Astrophysics (22MAY2023)
Thermal conductivity of hybrid filled HDPE nanocomposites
Creators: name: Müller, M. T.
name: Krause, Beate
name: Kretzschmar, B.
name: Jahn, I.
name: Pötschke, Petra
Publisher: name: Melville, NY : AIP
Year: 2017
Subjects: subject: Thermal conductivity
subject: Composite materials
subject: Materials forming
subject: Polymers
subject: Scanning electron microscopy
subject: Carbon based materials
subject: Nanocomposites
subject: Nanotubes
subject: Konferenzschrift
subject: 530

description: In this study composite materials based on high-density polyethylene (HDPE) with fillers containing nanostructures were prepared using melt mixing. Vapour Grown Carbon Fibers (VGCF), multiwalled carbon nanotubes (MWCNT) of the types Baytubes® C150P and Nanocyl™ NC7000, anthracite powder, microsilica, organoclay and expanded graphite (EG) as well as mixtures of these fillers were used. The amount and mixing ratios of the hybrid filled systems have been varied to determine their effects on the achievable level of thermal conductivity as measured on compression molded plates. The filler dispersion and phase adhesion were studied using scanning electron microscopy. When limiting the maximum filler content to 10 wt%, the highest enhancement in thermal conductivity by 166% was found for VGCF followed by a 1:1 filler combination of VGCF with EG (148%).
Influence of mixing conditions on carbon nanotube shortening and curling in polycarbonate composites
Creators: name: Krause, Beate
name: Carval, J.
name: Pötschke, Petra
Publisher: name: Melville, NY : AIP
Year: 2017
Subjects: subject: Electrical properties and parameters
subject: Mechanical energy
subject: Materials forming
subject: Polymers
subject: Nanotubes
subject: Konferenzschrift
subject: 530

description: Polycarbonate composites containing multiwalled carbon nanotubes (MWCNTs, 0.2-2.0 wt%) were melt mixed in small scale at different conditions of screw speed and mixing time to vary the specific mechanical energy (SME) input between 0.4 and 4.0 kWh/kg. Next to the electrical properties of compression molded plates and the MWCNT macrodispersion also the nanotube length and shape were analyzed. For this, the matrix of the composites with 0.75 wt% MWCNT loading was dissolved and the remaining nanotubes were investigated using TEM. It was found that with increasing SME input the number of remaining CNT agglomerates decreases. The MWCNT length decreased from initially about 1.4 micrometers towards 350 nanometers at a SME of 4 kWh/kg and the mean curling values were also reduced. The electrical percolation threshold increases with SME from about 0.4 wt% to 0.6 wt%.
Transplant Outcomes for Children with T Cell Acute Lymphoblastic Leukemia in Second Remission: A Report from the Center for International Blood and Marrow Transplant Research
Creators: name: Ibrahim, Ahmed
name: Guilcher, Gregory M.T.
name: Brown, Valerie I.
name: Dvorak, Christopher C.
name: Thiel, Elizabeth
name: Frangoul, Haydar
name: Le Rademacher, Jennifer
name: Kasow, Kimberly A.
name: Shah, Nirali N.
name: Burke, Michael J.
name: Olsson, Richard F.
name: Egeler, R. Maarten
name: Pulsipher, Michael A.
name: Talano, Julie An
name: Abraham, Allistair A.
name: He, Wensheng
name: Ayas, Mouhab
name: Cairo, Mitchell S.
name: Auletta, Jeffery J.
name: Diaz Perez, Miguel A.
name: Shah, Niketa
name: Kitko, Carrie L.
name: Hayashi, Robert J.
name: Eldjerou, Lamis
name: Chan, Ka Wah
name: Leung, Wing H.
name: Verneris, Michael R.
name: Abdel-Azim, Hisham
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Survival for children with relapsed T-ALL is poor when treated with chemotherapy alone and outcomes after allogeneic hematopoietic cell transplantation (HCT) is not well described. Two hundred and twenty-nine children with T-ALL in second complete remission (CR2) received a HCT following myeloablative conditioning between 2000–2011 and were reported to the Center for International Blood and Marrow Transplant Research (CIBMTR). Median age was 10 (range, 2–18) years. Donor source was umbilical cord blood (26%), matched sibling bone marrow (38%) or unrelated bone marrow/peripheral blood (36%). Acute GVHD (grade 2–4) and chronic GVHD occurred in 35% (95% CI, 27–45) and 26% (95% CI, 20–33) of patients. Transplant related mortality at day 100 and 3-year relapse rates were 13% (95% CI, 9–18) and 30% (95% CI, 24–37) respectively. Three year overall survival and disease-free survival were 48% (95% CI, 41–55) and 46% (95% CI, 39–52%) respectively. In multivariate analysis, patients with bone marrow relapse, with or without concurrent extramedullary relapse prior to HCT, were most likely to relapse (HR=3.94, p=0.005) as compared to isolated extramedullary disease. In conclusion, HCT for pediatric T-ALL in CR2 demonstrates reasonable and durable outcomes and consideration for HCT is warranted.
Quantifying the Energy Budget in the Solar Wind from 13.3-100 Solar Radii
Creators: name: Halekas, J. S.
name: Bale, S. D.
name: Berthomier, M.
name: Chandran, B. D. G.
name: Drake, J. F.
name: Kasper, J. C.
name: Klein, K. G.
name: Larson, D. E.
name: Livi, R.
name: Pulupa, M. P.
name: Stevens, M. L.
name: Verniero, J. L.
name: Whittlesey, P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: A variety of energy sources, ranging from dynamic processes like magnetic reconnection and waves to quasi-steady terms like the plasma pressure, may contribute to the acceleration of the solar wind. We utilize a combination of charged particle and magnetic field observations from the Parker Solar Probe (PSP) to attempt to quantify the steady-state contribution of the proton pressure, the electric potential, and the wave energy to the solar wind proton acceleration observed by PSP between 13.3 and ~100 solar radii (RS). The proton pressure provides a natural kinematic driver of the outflow. The ambipolar electric potential acts to couple the electron pressure to the protons, providing another definite proton acceleration term. Fluctuations and waves, while inherently dynamic, can act as an additional effective steady-state pressure term. To analyze the contributions of these terms, we utilize radial binning of single-point PSP measurements, as well as repeated crossings of the same stream at different distances on individual PSP orbits (i.e. "fast radial scans"). In agreement with previous work, we find that the electric potential contains sufficient energy to fully explain the acceleration of the slower wind streams. On the other hand, we find that the wave pressure plays an increasingly important role in the faster wind streams. The combination of these terms can explain the continuing acceleration of both slow and fast wind streams beyond 13.3 RS.
PP/SWCNT composites modified with ionic liquid
Creators: name: Krause, Beate
name: Predtechenskiy, M.
name: Ilin, E.
name: Pötschke, Petra
Publisher: name: Melville, NY : AIP
Year: 2017
Subjects: subject: Enthalpy
subject: Nanotubes
subject: Ionic liquids
subject: Polymers
subject: Konferenzschrift
subject: 530

description: Polypropylene composites filled with singlewalled carbon nanotubes TUBALL® (SWCNTs) were studied with regard to the effect of ionic liquid (IL) addition in different SWCNT:IL ratios (1:0.5 - 1:6). The incorporation of IL leads to a decrease of the electrical percolation threshold and already at 0.025 wt% SWCNT loading reduced resistivity values can be observed. However, the SWCNT macro dispersion, already relatively good without IL, was not affected by the IL incorporation. In addition, the nucleation effect of the SWCNT in polypropylene is not influenced when simultaneously adding IL, whereas the crystallization enthalpy slightly decreases with its addition.
Transplantation Outcomes for Children with Hypodiploid Acute Lymphoblastic Leukemia
Creators: name: Gonzalez Vicent, Marta
name: Gibson, Brenda
name: Diaz Pérez, Miguel A.
name: Nemecek, Eneida R.
name: Abdel-Azim, Hisham
name: Jodele, Sonata
name: Leung, Wing H.
name: Frangoul, Haydar A.
name: Dvorak, Christopher C.
name: Ayas, Mouhab
name: Eapen, Mary
name: Lund, Troy C.
name: He, Wensheng
name: Qayed, Muna
name: Seber, Adriana
name: Mehta, Parinda A.
name: Davies, Stella M.
name: Kasow, Kimberly A.
name: Carpenter, Paul A.
name: Zhang, Mei Jie
name: Lehmann, Leslie
name: Kitko, Carrie L.
name: Camitta, Bruce M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Children with hypodiploid acute lymphoblastic leukemia (ALL) have inferior outcomes despite intensive risk adapted chemotherapy regimens. We describe 78 children with hypodiploid ALL who underwent hematopoietic stem cell transplant (HSCT) between 1990 and 2010. Thirty nine (50%) patients had ≤ 43 chromosomes, 12 (15%) had 44 chromosomes and 27 (35%) had 45 chromosomes. Forty three (55%) patients were transplanted in first remission (CR1) while 35 (45%) were transplanted in ≥CR2. Twenty nine patients (37%) received a graft from a related donor and 49 (63%) from an unrelated donor. All patients received a myeloablative conditioning regimen. The 5-year probabilities of leukemia-free survival (LFS), overall survival (OS), relapse, and treatment related mortality (TRM) for the entire cohort were 51%, 56%, 27% and 22% respectively. Multivariate analysis confirmed that mortality risks were higher for patients transplanted in CR2 (HR 2.16, p=0.05), with chromosome number ≤43 (HR 2.15, p=0.05) and for those transplanted in the first decade of the study period (HR 2.60, p=0.01). Similarly, treatment failure risks were higher with chromosome number ≤43 (HR 2.28, p=0.04) and the earlier transplant period (HR 2.51, p=0.01). Although survival is better with advances in donor selection and supportive care, disease-related risk factors significantly influence transplantation outcomes.
Influence of graphite and SEBS addition on thermal and electrical conductivity and mechanical properties of polypropylene composites
Creators: name: Krause, Beate
name: Cohnen, A.
name: Pötschke, Petra
name: Hickmann, T.
name: Koppler, D.
name: Proksch, B.
name: Kersting, T.
name: Hopmann, C.
Publisher: name: Melville, NY : AIP
Year: 2017
Subjects: subject: electrical conductivity
subject: fuel cells
subject: impact modification
subject: Polymer composites
subject: thermal conductivity
subject: Konferenzschrift
subject: 530

description: In this study, composites based on polypropylene (PP) and different graphite fillers were melt mixed using small scale microcompounder Xplore DSM15 as well as lab-scale co-rotating twin screw extruder Coperion ZSK26Mc. The measurements of the electrical and thermal conductivity as well as mechanical properties of the composites were performed on pressed plates. It was found that the addition of graphite powders having different particle size distributions leads to different increases of the thermal conductivity. For synthetic graphite, the PP composites filled with TIMCAL Timrex® KS500 reached the highest value of thermal conductivity of 0.52 W/(m·K) at 10 vol% loading, whereas this composite was not electrical conductive. Furthermore, the influence of a styrene-ethylene-butylene-styrene block copolymer (SEBS) based impact modifier on the mechanical properties of PP filled with 80 wt% of different synthetic graphites was investigated. For that the proportion of SEBS in the PP component was varied systematically. The conductivities were influenced by the type of graphite and the content of impact modifier. The results indicate that the impact strength of the composite containing TIMCAL Timrex® KS300-1250 can be increased by approx. 100 % when replacing 50 wt% of the PP component by SEBS.
Top-shaped Asteroids as Lens-shaped Bodies
Creators: name: Dobrovolskis, Anthony R.
name: Lissauer, Jack J.
name: Alvarellos, Jose L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Several asteroids are known to be shaped like toy tops. This paper models Top-Shaped Asteroids (TSAs) as Homogeneous Symmetric Lenses (HSLs), and derives their rotational, self-gravitational, and total energies as functions of their mass, density, and angular momentum. Then we raise, test, and ultimately reject the hypothesis that TSAs take the shape of lowest total energy, subject to the constraint that they keep the same mass, density, and angular momentum, while remaining HSLs. Other processes must control the shapes of TSAs. For completeness, we also describe a Core-Mantle Model for TSAs, as well as an Inverted Core-Mantle Model, and derive their self-gravitational energies, along with their rotational energies. The gravitational potential at the center of an HSL then is derived.
description: Submitted to Icarus
Cleavage of Disulfide Bonds in Mouse Spermatogenic Cell-Specific Type 1 Hexokinase Isozyme Is Associated with Increased Hexokinase Activity and Initiation of Sperm Motility1
Creators: name: Mori, Chisato
name: Eddy, Edward M.
name: Miranda-Vizuete, Antonio
name: Nakamura, Noriko
name: Miki, Kiyoshi
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: During epididymal transit, sperm acquire the ability to initiate rapid forward progressive motility on release into the female reproductive tract or physiological media. Glycolysis is the primary source of the ATP necessary for this motility in the mouse, and several novel glycolytic enzymes have been identified that are localized to the principal piece region of the flagellum. One of these is the spermatogenic cell-specific type 1 hexokinase isozyme (HK1S), the only member of the hexokinase enzyme family detected in sperm. Hexokinase activity was found to be lower in immotile sperm immediately after removal from the cauda epididymis (quiescent) than in sperm incubated in physiological medium for 5 min and showing rapid forward progressive motility (activated). However, incubating sperm in medium containing diamide, an inhibitor of disulfide bond reduction, resulted in lower motility and HK activity than in controls. HK1S was present in dimer and monomer forms in extracts of quiescent sperm but mainly as a monomer in motile sperm. A dimer-size band detected in quiescent sperm with phosphotyrosine antibody was not detected in activated sperm, and the monomer-size band was enhanced. In addition, the general protein oxido-reductase thioredoxin-1 was able to catalyze the in vitro conversion of HK1S dimers to the monomeric form. These results strongly suggest that cleavage of disulfide bonds in HK1S dimers contributes to the increases in HK activity and motility that occur when mouse sperm become activated.
Når danske myndigheder taler forskelligt dansk: Begrebsafklaring med terminologiske ontologier
Creators: name: Madsen, Bodil Nistrup
name: Thomsen, Hanne Erdman
Publisher: name: Globe: A Journal of Language, Culture and Communication
Year: 2016

description: Terminological Ontology combines traditional terminology work with typed feature structures, thus providing a systematic and controlled method for concept clarification and definition writing. Terminological ontologies include a formalization of the inheritance of characteristics and a number of constraints which help experts formulate consistent intensional definitions. In this paper we illustrate the usefulness of Terminological Ontology with several examples from a scenario where various Danish authorities need to exchange digitized information. The authorities involved include units under the Ministry of Justice (the Prison and Probation Service, the Police, the Prosecution Service in Denmark, and the Danish Court Administration), the National Board of Social Services, and the Danish Agency for Digitisation. The examples evolve around the central concept of ‘case’, and show how concept clarification and harmonization is necessary in order to enable a seamless exchange of digitized information between these authorities, and in essence, between organizations in general. On this basis, it is concluded that there is a need for a shared, cross-ministerial concept and knowledge database with appointed terminologists to collaborate with and coordinate contributions from the interested parties in ministries, public agencies and other authorities.
description: Globe: A Journal of Language, Culture and Communication, Særnummer: Global kommunikation i lokalt perspektiv: Når vi ikke taler samme sprog - Festskrift i anledning af Per Durst-Andersens 60 års fødselsdag
Continuous Filament Network of the Local Universe
Creators: name: Tugay, Anatoliy
name: Tarnopolski, Mariusz
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Simulated galaxy distributions are suitable for developing filament detection algorithms. However, samples of observed galaxies, being of limited size, cause difficulties that lead to a discontinuous distribution of filaments. We created a new galaxy filament catalog composed of a continuous cosmic web with no lone filaments. The core of our approach is a ridge filter used within the framework of image analysis. We considered galaxies from the HyperLeda database with redshifts $0.02\leqslant z\leqslant 0.1$, and in the solid angle $120^\circ\leqslant {\rm RA}\leqslant 240^\circ$, $0^\circ\leqslant {\rm DEC}\leqslant 60^\circ$. We divided the sample into 16 two-dimensional celestial projections with redshift bin $Δz=0.005$, and compared our continuous filament network with a similar recent catalog covering the same region of the sky. We tested our catalog on two application scenarios. First, we compared the distributions of distance to nearest filament of various astrophysical sources (Seyfert galaxies and other active galactic nuclei, radio galaxies, low surface brightness galaxies, and dwarf galaxies), and found that all source types trace the filaments well, with no systematic differences. Next, among the HyperLeda galaxies, we investigated the dependence of $g-r$ color distribution on distance to nearest filament, and confirmed that early type galaxies are located on average further from the filaments than late type ones.
description: 18 pages, 10 figures; catalog provided as ancillary file; accepted in ApJ