cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Secretome of Hypoxia Conditioned hMSC Loaded in a Central Depot Induces Chemotaxis and Angiogenesis in a Biomimetic Mineralized Collagen Bone Replacement Material
Creators: name: Quade, Mandy
name: Münch, Pina
name: Lode, Anja
name: Duin, Sarah
name: Vater, Corina
name: Gabrielyan, Anastasia
name: Rösen-Wolff, Angela
name: Gelinsky, Michael
Publisher: name: FID GEO
Year: 2019

description: Abstract The development of biomaterials with intrinsic potential to stimulate endogenous tissue regeneration at the site of injury is a main demand on future implants in regenerative medicine. For critical-sized bone defects, an in situ tissue engineering concept is devised based on biomimetic mineralized collagen scaffolds. These scaffolds are functionalized with a central depot loaded with a signaling factor cocktail, obtained from secretome of hypoxia-conditioned human mesenchymal stem cells (MSC). Therefore, hypoxia-conditioned medium (HCM)-production is standardized and adapted to achieve high signaling factor-yields; a concentration protocol based on dialysis and freeze-drying is established to enable the integration of sufficient and defined amounts into the depot. In humid milieu—as after implantation—signaling factors are released by forming a chemotactic gradient, inducing a directed migration of human bone marrow stroma cells (hBMSC) into the scaffold. Angiogenic potential, determined by coculturing human umbilical vein endothelial cells (HUVEC) with osteogenically induced hBMSC shows prevascular structures, which sprout throughout the interconnected pores in a HCM-concentration-dependent manner. Retarded release by alginate-based (1 vol%) depots, significantly improves sprouting-depth and morphology of tubular structures. With the intrinsic potential to supply attracted cells with oxygen and nutrients, this bioactive material system has great potential for clinical translation.
Natural Two-Higgs-Doublet Model
Creators: name: Grzadkowski, Bohdan
name: Osland, Per
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the Two-Higgs-Doublet Model (2HDM) constrained by the two-loop-order requirement of cancellation of quadratic divergences is consistent with the existing experimental constraints. The model allows to ameliorate the little hierarchy problem by suppressing the quadratic corrections to scalar masses and lifting the mass of the lightest Higgs boson. A strong source of CP violation emerges from the scalar potential. The cutoff originating from the naturality arguments is shifted from 0.6 TeV in the Standard Model to >6 TeV in the 2HDM, depending on the mass of the lightest scalar.
description: 2 figures, submitted to Fortschritte der Physik, presented at the 10th Hellenic School on Elementary Particle Physics and Gravity, Corfu 2010
Chemical-Shift Perturbations Reflect Bile Acid Binding to Norovirus Coat Protein: Recognition Comes in Different Flavors
Creators: name: Creutznacher, Robert
name: Schulze, Eric
name: Wallmann, Georg
name: Peters, Thomas
name: Stein, Matthias
name: Mallagaray, Alvaro
Publisher: name: FID GEO
Year: 2019

description: Abstract Bile acids have been reported as important cofactors promoting human and murine norovirus (NoV) infections in cell culture. The underlying mechanisms are not resolved. Through the use of chemical shift perturbation (CSP) NMR experiments, we identified a low-affinity bile acid binding site of a human GII.4 NoV strain. Long-timescale MD simulations reveal the formation of a ligand-accessible binding pocket of flexible shape, allowing the formation of stable viral coat protein–bile acid complexes in agreement with experimental CSP data. CSP NMR experiments also show that this mode of bile acid binding has a minor influence on the binding of histo-blood group antigens and vice versa. STD NMR experiments probing the binding of bile acids to virus-like particles of seven different strains suggest that low-affinity bile acid binding is a common feature of human NoV and should therefore be important for understanding the role of bile acids as cofactors in NoV infection.
The non-monotonicity of the KPP speed with respect to diffusion in the presence of a shear flow
Creators: name: Smaily, Mohammad El
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper, we prove via counterexamples that adding an advection term of the form Shear flow (whose streamlines are parallel to the direction of propagation) to a reaction-diffusion equation will be an enough heterogeneity to spoil the increasing behavior of the KPP speed of propagation with respect to diffusion. The non-monotonicity of the speed with respect to diffusion will occur even when the reaction term and the diffusion matrices are considered homogeneous (do not depend on space variables). For the sake of completeness, we announce our results in a setting which allows domains with periodic perforations that may or may not be equal to the whole space $\mathbb{R}^N.$
description: 11 pages, submitted
Nano-Powdered Calcium Carbonate Reference Materials: Significant Progress for Microanalysis?
Creators: name: Jochum, Klaus Peter
name: Garbe-Schönberg, Dieter
name: Veter, Marina
name: Stoll, Brigitte
name: Weis, Ulrike
name: Weber, Michael
name: Lugli, Federico
name: Jentzen, Anna
name: Schiebel, Ralf
name: Wassenburg, Jasper A.
name: Jacob, Dorrit E.
name: Haug, Gerald H.
Publisher: name: FID GEO
Year: 2019

description: Homogeneity, mass fractions of about forty trace elements and Sr isotope composition of Ca carbonate reference materials (RMs) between original and nano-powdered pellets are compared. Our results using nanosecond and femtosecond LA-(MC)-ICP-MS show that the nano-pellets of the RMs MACS-3NP, JCp-1NP and JCt-1NP are about a factor of 2–3 more homogeneous than the original samples MACS-3, JCp-1 and JCt-1, and are therefore much more suitable for microanalytical purposes. With the exception of Si, the mass fractions of the synthetic RM MACS-3 agree with its fine-grained analogue MACS-3NP. Very small, but significant, differences between original and nano-pellets are observed in the RMs JCp-1 and JCt-1 for some trace elements with very low contents, indicating the need for re-certification. Strontium mass fractions in the analysed RMs are high (1500–7000 mg kg−1), and their isotope compositions determined by LA-MC-ICP-MS in the original and the nano-pellets agree within uncertainty limits.
Abundances of Galactic Anticenter Planetary Nebulae and the Oxygen Abundance Gradient in the Galactic Disk
Creators: name: Henry, R. B. C.
name: Kwitter, Karen B.
name: Jaskot, Anne E.
name: Balick, Bruce
name: Morrison, Michael A.
name: Milingo, Jacquelynne B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have obtained spectrophotometric observations of 41 anticenter planetary nebulae (PNe) located in the disk of the Milky Way. Electron temperatures and densities, as well as chemical abundances for He, N, O, Ne, S, Cl, and Ar were determined. Incorporating these results into our existing database of PN abundances yielded a sample of 124 well-observed objects with homogeneously-determined abundances extending from 0.9-21 kpc in galactocentric distance. We performed a detailed regression analysis which accounted for uncertainties in both oxygen abundances and radial distances in order to establish the metallicity gradient across the disk to be: 12+log(O/H)=(9.09+/-.05) - (0.058+/-.006) x Rg, with Rg in kpc. While we see some evidence that the gradient steepens at large galactocentric distances, more objects toward the anticenter need to be observed in order to confidently establish the true form of the metallicity gradient. We find no compelling evidence that the gradient differs between Peimbert Types I and II, nor is oxygen abundance related to the vertical distance from the galactic plane. Our gradient agrees well with analogous results for H II regions but is steeper than the one recently published by Stanghellini & Haywood (2010) over a similar range in galactocentric distance. A second analysis using PN distances from a different source implied a flatter gradient, and we suggest that we have reached a confusion limit which can only be resolved with greatly improved distance measurements and an understanding of the natural scatter in oxygen abundances. Finally, a consideration of recently published chemical evolution models of the Galactic disk suggests that reconciling the current range in published oxygen gradients is necessary for adequately constraining parameters such as the surface density threshold for star formation and the characteristic timescale for disk formation.
description: Accepted for publication in the Astrophysical Journal; 42 pages including 5 figures
Using Hopfield to Solve Resource-Leveling Problem
Creators: name: Liu, Caixing
name: Xie, Jierui
name: Hu, Yueming
Publisher: name: arXiv
Year: 2011
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Although the traditional permute matrix coming along with Hopfield is able to describe many common problems, it seems to have limitation in solving more complicated problem with more constrains, like resource leveling which is actually a NP problem. This paper tries to find a better solution for it by using neural network. In order to give the neural network description of resource leveling problem, a new description method called Augmented permute matrix is proposed by expending the ability of the traditional one. An Embedded Hybrid Model combining Hopfield model and SA are put forward to improve the optimization in essence in which Hopfield servers as State Generator for the SA. The experiment results show that Augmented permute matrix is able to completely and appropriately describe the application. The energy function and hybrid model given in this study are also highly efficient in solving resource leveling problem.
Thingified Flesh: A Womanist Approach to De/Colonial Reproductive Politics and Research
Creators: name: Calvente, Lisa B. Y.
Publisher: name: Taylor & Francis
Year: 2023

description:
Decolonization is everywhere. In the last few years our field has had a structural and intellectual reckoning that continues to take aim at the prevalence of whiteness. But as the struggles over and against hegemonic discourse both within and beyond the field continue, we must critically consider how we utilize decolonization as communication scholars. This critical reflection is especially significant when the stakes are high and the mattering cost is a personhood applied to all. What does decolonization mean in the context of a post-Roe v. Wade era? How can intellectuals transform a discourse, or rather its erasure, to create solidarities across points of identification?
Unified picture for diluted magnetic semiconductors
Creators: name: Bouzerar, Richard
name: Bouzerar, Georges
Publisher: name: arXiv
Year: 2010
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: For already a decade the field of diluted magnetic semiconductors (DMS) is one of the hottest. In spite of the great success of material specific Density Functional Theory (DFT) to provide accurately critical Curie temperatures ($T_{C}$) in various III-V based materials, the ultimate search for a unifying model/theory was still an open issue. Many crucial questions were still without answer, as for example: Why, after one decade, does GaMnAs still exhibit the highest $T_{C}$? Is there any intrinsic limitations or any hope to reach room temperature? How to explain in a unique theory the proximity of GaMnAs to the metal-insulator transition, and the change from RKKY couplings in II-VI materials to the double exchange regime in GaMnN? The aim of the present work is to provide this missing theory. We will show that the key parameter is the position of the Mn level acceptor and that GaMnAs has the highest $T_{C}$ among III-V DMS. Our theory (i) provides an overall understanding, (ii) is quantitatively consistent with existing DFT based studies, (iii) able to explain both transport and magnetic properties in a broad variety of DMS and (iv) reproduces the $T_{C}$ obtained from first principle studies for many materials including both GaMnN and GaMnAs. The model also reproduces accurately recent experimental data of the optical conductivity of GaMnAs and predicts those of other materials.
description: 5 figures includes, accepted for publication in Eur. Phys. Lett
Understanding the Extreme Spread in Climate Sensitivity within the Radiative-Convective Equilibrium Model Intercomparison Project
Creators: name: Becker, Tobias
name: Wing, Allison A.
Publisher: name: FID GEO
Year: 2020

description: The Radiative-Convective Equilibrium Model Intercomparison Project (RCEMIP) consists of simulations at three fixed sea-surface temperatures (SSTs: 295, 300, and 305 K) and thus allows for a calculation of the climate feedback parameter based on the change of the top-of-atmosphere radiation imbalance. Climate feedback parameters range widely across RCEMIP, roughly from −6 to 3 W m−2 K−1, particularly across general-circulation models (GCMs) as well as global and large-domain cloud-resolving models (CRMs). Small-domain CRMs and large-eddy simulations have a smaller range of climate feedback parameters due to the absence of convective self-aggregation. More than 70–80% of the intermodel spread in the climate feedback parameter can be explained by the combined temperature dependencies of convective aggregation and shallow cloud fraction. Low climate sensitivities are associated with an increase of shallow cloud fraction (increasing the planetary albedo) and/or an increase in convective aggregation with warming. An increase in aggregation is associated with an increase in outgoing longwave radiation, caused primarily by mid-tropospheric drying, and secondarily by an expansion of subsidence regions. Climate sensitivity is neither dependent on the average amount of aggregation nor on changes in deep/anvil cloud fraction. GCMs have a lower overall climate sensitivity than CRMs because in most GCMs convective aggregation increases with warming, whereas in CRMs, convective aggregation shows no consistent temperature trend.
Mine closure planning with First Nations communities : the Stk'emlupsemc te Secwepemc Nation and the New Afton Mine
Creators: name: Collins, Benjamin C.
Publisher: name: University of British Columbia
Year: 2015

description: The goal of this research is to understand how the traditional knowledge of the Stk’emlupsemc te Secwepemc Nation can be used to improve reclamation and closure planning of the New Afton mine. Furthermore, this research will provide insight into consultation with First Nation communities for closure and reclamation planning. The New Afton Mine site, located ten kilometers west of Kamloops, BC is on the traditional territory of the Tk’emlúps te Secwepemc and Skeetchestn Indian Bands. The application of traditional knowledge for closure is a relatively new field. As such, the application of the findings of this research are at a conceptual level. Interviews with traditional knowledge keepers were conducted to understand the relationship between plant life, wildlife, water sources and the traditional use pattern in the area. Site visits to both the Stk’emlupsemc te Secwepemc Nation and New Afton Mine site have taken place during this research study. Visits to the New Afton property focused on determining and understanding the different areas of disturbance. Visits with the Stk’emlupsemc te Secwepemc members were aimed at engaging, recognizing, and understanding their objectives for the long term post-closure use of the mine site. This research found an extremely strong connection between the community’s culture and natural environment. In addition, hunting, fishing, medicinal and nutritional plant gathering were considered as the key traditional land uses in the area. The New Afton Mine was known as an old stop-over ground for travelers in the region. Concerns relating to the impacts of tailings and possible contaminants to the environment (water, wildlife and plant life) were indicated. Reclaiming the land to a natural state was outlined as the most desirable outcome for closure. The technical constraints of the property were also discussed (subsidence zones, semi-arid conditions, etc.) and how the property, considered as a brownfield development, impacts the closure and reclamation outcomes. Finally, through the interviews and field notes, it was found that successful consultation and collaboration with First Nations communities requires: respect and understanding of the community’s culture and history, well established trust, and an ability to be flexible to the needs of the community.
Geostandards and Geoanalytical Research Bibliographic Review 2018
Creators: name: Weis, Ulrike
name: Arns, Jodok
name: Kaiser, Viktoria
name: Reichstein, Anna
name: Reichstein, Lea
name: Stoll, Brigitte
name: Jochum, Klaus Peter
Publisher: name: FID GEO
Year: 2020

description: This bibliographic review gives an outline of publications in 2018 focusing on reference materials (RMs) used in geochemistry and related fields, such as palaeoclimate and environmental research.
РОЛЬ ИСПОЛЬЗОВАНИЯ СОВРЕМЕННЫХ ПЕДАГОГИЧЕСКИХ ПОДХОДОВ В РАЗВИТИИ РЕБЕНКА В ОРГАНИЗАЦИИ ИГРОВОЙ ДЕЯТЕЛЬНОСТИ, НАПРАВЛЕННОЙ НА ДЕТЕЙ РАННЕГО ДОШКОЛЬНОГО ВОЗРАСТА
Creators: name: Акрамова, Муниса
Publisher: name: Zenodo
Year: 2025

description: Данная статья посвящена размышлениям о роли современных педагогических подходов в организации игровой деятельности, предназначенной для детей раннего дошкольного возраста, соответствующей возрастному признаку и, конечно же, положительно влияющей на развитие ребенка, а также представляет в свою очередь практические результаты педагогических подходов.
Kinematics and line strength indices in the halos of the Coma Brightest Cluster Galaxies NGC 4874 and NGC 4889
Creators: name: Coccato, L.
name: Arnaboldi, M.
name: Gerhard, O.
name: Freeman, K. C.
name: Ventimiglia, G.
name: Yasuda, N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the stellar kinematics and line strength indices in the outer halos of brightest cluster galaxies (BCGs) in the Coma cluster to obtain the outer halo V_rot and sigma profiles and to derive constraints on the formation history of these objects. Methods: We analyzed absorption lines in deep, medium-resolution, long-slit spectra in the wavelength range ~ 4500 - 5900 Angstrom, out to ~50 kpc for NGC 4874 and ~65 kpc for NGC 4889, probing regions with a surface brightness down to mu_R ~24 mag/arcsec^2. Results: These data provide stellar velocity and velocity dispersion profiles along the major axes of both BCGs, and also along the minor axis of NGC 4889. The kinematic properties of NGC 4874 and NGC 4889 halos extend the previous relations of early-type galaxy halos to bright luminosities and indicate that the stars in the outer regions are still bound to these galaxies. For NGC 4889 we also determine Hbeta, Mg and Fe line strength indices, finding strong radial gradients for Mg and Fe. The current dataset for NGC 4889 is one of the most extended in radius, including both stellar kinematics AND line strength index measurements.
description: 9 pages, 7 figure, accepted for publication in A&A
X-ray diffraction from strongly bent crystals and spectroscopy of X-ray free-electron laser pulses
Creators: name: Kaganer, Vladimir M.
name: Petrov, Ilia
name: Samoylova, Liubov
Publisher: name: FID GEO
Year: 2019

description: The use of strongly bent crystals in spectrometers for pulses of a hard X-ray free-electron laser is explored theoretically. Diffraction is calculated in both dynamical and kinematical theories. It is shown that diffraction can be treated kinematically when the bending radius is small compared with the critical radius given by the ratio of the Bragg-case extinction length for the actual reflection to the Darwin width of this reflection. As a result, the spectral resolution is limited by the crystal thickness, rather than the extinction length, and can become better than the resolution of a planar dynamically diffracting crystal. As an example, it is demonstrated that spectra of the 12 keV pulses can be resolved in the 440 reflection from a 20 µm-thick diamond crystal bent to a radius of 10 cm.
Volcanic stratigraphy and epithermal mineralization of the La Coipa district, Maricunga belt, Chile
Creators: name: Gamonal, Sergio
Publisher: name: University of British Columbia
Year: 2015

description: The La Coipa district is located in the northern part of the Oligocene-Miocene Maricunga belt, northern Chile. It consists of a cluster of high- to intermediate-sulfidation Ag-Au epithermal deposits that sustained one of the major producing mines within the region, otherwise dominated by gold-rich porphyry systems. The depletion of reserves led to a temporary mine closure in 2013, which highlights the necessity of a renewed effort to improve the district exploration model. Following this objective, this study is focused on a detailed district-scale geological characterization with emphasis on Tertiary magmatic rocks. Epithermal mineralization in La Coipa is hosted in an intra-arc Oligocene-Miocene basin that overlies rocks of Permian to Eocene age. The Oligocene-Miocene magmatic rocks have been divided into two groups: La Coipa Group (24-21 Ma) and Codocedo Group (21-16 Ma). A regional unconformity separates these groups. With the exception of the intermediate-sulfidation Purén deposit, the high-sulfidation systems are always associated with concentrically zoned advanced argillic alteration where economic grades are mainly associated with vuggy quartz and quartz+alunite core zones. Outer alteration zones are constituted by kaolinite ± dickite ± pyrophyllite, and illite ± kaolinite ± smectite. The Purén deposit is characterized by silicification and illite + kaolinite alteration. CA-ID-TIMS U-Pb (zircon) and ⁴⁰Ar/³⁹Ar (biotite) ages determined that Tertiary magmatic rocks range in age between ca. 37 and 16 Ma. ⁴⁰Ar/³⁹Ar alunite ages reveal multiple episodes of hydrothermal alteration and mineralization that range between 30 and 14 Ma, but with a main episode bracketed between 19 and 14 Ma. The prolonged history of epithermal mineralization at La Coipa requires a revised model for fertile metallogenic episodes for the Maricunga belt. These alunite ages indicate a more continuous distribution of mineralizing events, which contrasts previous models that indicated two fertile episodes limited to the 24-20 Ma and 14-13 Ma periods. Trace element ratios in Oligocene and Miocene igneous rocks commonly used as tectonic and porphyry fertility indicators (eg., La/Yb, Sr/Y) suggest that La Coipa is situated at the southern end of a domain characterized by a thickened crust that acted as a favorable place for emplacement of magmatic and hydrothermal fluids.
Regioselective Functionalization of [2.2]Paracyclophanes: Recent Synthetic Progress and Perspectives
Creators: name: Hassan, Zahid
name: Spuling, Eduard
name: Knoll, Daniel M.
name: Bräse, Stefan
Publisher: name: FID GEO
Year: 2019

description: Abstract [2.2]Paracyclophane (PCP) is a prevalent scaffold that is widely utilized in asymmetric synthesis, π-stacked polymers, energy materials, and functional parylene coatings that finds broad applications in bio- and materials science. In the last few years, [2.2]paracyclophane chemistry has progressed tremendously, enabling the fine-tuning of its structural and functional properties. This Minireview highlights the most important recent synthetic developments in the selective functionalization of PCP that govern distinct features of planar chirality as well as chiroptical and optoelectronic properties. Special focus is given to the function-inspired design of [2.2]paracyclophane-based π-stacked conjugated materials by transition-metal-catalyzed cross-coupling reactions. Current synthetic challenges, limitations, as well as future research directions and new avenues for advancing cyclophane chemistry are also summarized.
Bifurcation in ground-state fidelity for a one-dimensional spin model with competing two-spin and three-spin interactions
Creators: name: Wang, Hong-Lei
name: Dai, Yan-Wei
name: Hu, Bing-Quan
name: Zhou, Huan-Qiang
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A one-dimensional quantum spin model with the competing two-spin and three-spin interactions is investigated in the context of a tensor network algorithm based on the infinite matrix product state representation. The algorithm is an adaptation of Vidal's infinite time-evolving block decimation algorithm to a translation-invariant one-dimensional lattice spin system involving three-spin interactions. The ground-state fidelity per lattice site is computed, and its bifurcation is unveiled, for a few selected values of the coupling constants. We succeed in identifying critical points and deriving local order parameters to characterize different phases in the conventional Ginzburg-Landau-Wilson paradigm.
description: 4+ pages, 5 figures
Additional file 1 of Downregulation of lncRNA ZNF582-AS1 due to DNA hypermethylation promotes clear cell renal cell carcinoma growth and metastasis by regulating the N(6)-methyladenosine modification of MT-RNR1
Creators: name: Yang, Wuping
name: Zhang, Kenan
name: Li, Lei
name: Xu, Yawei
name: Ma, Kaifang
name: Xie, Haibiao
name: Zhou, Jingcheng
name: Cai, Lin
name: Gong, Yanqing
name: Gong, Kan
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Table S1. The detailed primers information of qRT-PCR, MSP, Sequenom MassARRAY quantitative methylation analysis and MeRIP-qRT-PCR.
POLYNEUROPATHY:  MODERN ASPECTS OF METABOLIC THERAPY
Creators: name: Kodirova, Nargizakhon
Publisher: name: Zenodo
Year: 2025

description: The article presents a review of the literature on the problem of therapy of metabolic polyneuropathy in patients with diabetes mellitus type 2 (DM2) and chronic alcohol intoxication. The most common variant of diabetic neuropathy (30-50% of patients with DM) is diabetic polyneuropathy (DPN), manifested by severe pain syndrome. The development of symmetrical distal sensory polyneuropathy (SDSP) in patients with DM2, which is characterized by intense pain neuropathic syndrome, occurs in 20-30%, and the frequency of its representation increases as the disease progresses. Vitamins B1, B6, B12 have a neurotropic effect, the deficiency of each of which leads to the formation of polyneuropathy. The appointment of a combination of thiamine, pyridoxine, cyanocobalamin well relieves pain and eliminates sensitivity disorders
Nonequilibrium Transport of Quantum Molecular Chain in terms of the Complex Liouvillian Spectrum
Creators: name: Tanaka, Satoshi
name: Kanki, Kazuki
name: Petrosky, Tomio
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Transport process in molecular chain in nonequilibrium stationary state is theoretically investigated. The molecule is interacting at its both ends with thermal baths which has different temperatures, while no dissipation mechanism is contained inside the molecular chain. We have first obtained the nonequilibrium stationary state outside the Hilbert space in terms of the complex spectral representation of Liouvillian. The nonequilibrium stationary state is obtained as an eigenstate of the Liouvillian which is constructed through the collision invariant of the kinetic equation. The eigenstate of the Liouvillian contains an information of spatial correlation between the molecular chain and the thermal baths. While energy flow in the nonequilibrium state which is due to the first order correlation can be described by Landauer formula, the particle current due to the second order correlation cannot be described by the Landauer formula. The present method provides a simple and perspective way to evaluate the energy transport of molecular chain under the nonequilibrium situation.
description: 19 pages, 11 figures
Strong Sequestration of Hydrogen Into the Earth's Core During Planetary Differentiation
Creators: name: Yuan, Liang
name: Steinle-Neumann, Gerd
Publisher: name: FID GEO
Year: 2020

description: We explore the partitioning behavior of hydrogen between coexisting metal and silicate melts at conditions of the magma ocean and the current core–mantle boundary with the help of density functional theory molecular dynamics. We perform simulations with the two-phase and thermodynamic integration methods. We find that hydrogen is weakly siderophile at low pressure (20 GPa and 2,500 K), and becomes much more strongly so with pressure, suggesting that hydrogen is transported to the core in a significant amount during core segregation and is stable there. Based on our results, the core likely contains ~1 wt% H, assuming single-stage formation and equilibration at 40 GPa. Our two-phase simulations further suggest that silicon is entrained in the core-forming metal, while magnesium remains in the silicate phase. This preferred incorporation of silicon hints at an explanation for the elevated Mg/Si ratio of the bulk silicate Earth relative to chondritic compositions.
Insulating behavior in metallic bilayer graphene: Interplay between density inhomogeneity and temperature
Creators: name: Hwang, E. H.
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate bilayer graphene transport in the presence of electron-hole puddles induced by long-range charged impurities in the environment. We explain the insulating behavior observed in the temperature dependent conductivity of low mobility bilayer graphene using an analytic statistical theory taking into account the non-mean-field nature of transport in the highly inhomogeneous density and potential landscape. We find that the puddles can induce, even far from the charge neutrality point, a coexisting metallic and insulating transport behavior due to the random local activation gap in the system.
description: 5 pages, 3 figures
On the exploration of a marine aquifer offshore Israel by long-offset transient electromagnetics
Creators: name: Lippert, Klaus
name: Tezkan, Bülent
Publisher: name: FID GEO
Year: 2019

description: The existence of aquifers extending from land beneath the sea floor up to a distance of several kilometres has been observed and examined all over the world. The coastal aquifer of Israel is a heavily used groundwater reservoir which has to be constantly monitored to ensure the drinking water supply. Former land-based electromagnetic measurements show that it is, in several places, blocked to seawater intrusion and is consequently a candidate for submarine extension. Multicomponent long-offset transient electromagnetic measurements were carried out offshore on the coast of Israel. We deployed a 400-m-long grounded dipole as transmitter and several electric and magnetic receivers on the sea floor up to a distance of 4.8 km from the coast. Altogether, we deployed 8 transmitter positions and received data sets at 14 receiver stations onshore and offshore, with offsets of mostly 400 and 800 m. In this paper, we present the survey and 1D Occam and Marquardt inversions of the offshore horizontal electric components in the broadside and inline configuration. In addition, the vertical magnetic component in the broadside position is also considered. Only single inversions, both single offset and single component, were used to detect the aquifer under sea sediments. We prove the submarine existence of the Israeli coastal aquifer up to a distance to the coast of approximately 3.2 to 3.6 km using all measured long-offset transient electromagnetic components. In addition, we present modelling studies with synthetic data derived from a subsurface model adjusted to our survey area with very shallow water from 10 to 50 m. As part of the planning before the survey, a parameter study of the expected subsurface, the examination of the airwave phenomenon and the justification for our 1D inversion strategy are shown. More detailed eigen parameter analyses are added to explain the measured data.
Residential segregation and outdoor urban moist heat stress disparities in the United States
Creators: name: Qian, Yun
name: Chakraborty, TC
name: Sheriff, Glenn
name: Hsu, Angel
name: Newman, Andrew J.
Publisher: name: Elsevier
Year: 2023

description:
The combined impact of urbanization-induced warming and drying on large-scale heat stress disparities remains unknown, with multicity studies using satellite-derived land surface temperature as a proxy for these disparities. Here, using high-resolution urban-resolving numerical model simulations for 2014–2018, we find pervasive disparities in all-sky average maximum summertime air temperature and moist heat stress metrics across US cities, with higher outdoor heat stress exposure in poorer and primarily non-white census tracts. Ninety-four percent of the US urban population (228 million) live in cities where heat stress burdens the poor, with heat stress inequities between white and non-white populations strongly associated with residential segregation. Similarly, historically redlined neighborhoods show higher heat stress than their non-redlined counterparts, demonstrating how historical segregation relates to present-day environmental inequalities. Our results provide quantitative estimates of physiologically relevant heat stress disparities at the US national scale and highlight potential biases when using satellites as a proxy for these.
Upper Plate Controls on the Formation of Broken Foreland Basins in the Andean Retroarc Between 26°S and 28°S: From Cretaceous Rifting to Paleogene and Miocene Broken Foreland Basins
Creators: name: Zapata, S.
name: Sobel, E. R.
name: Del Papa, C.
name: Glodny, J.
Publisher: name: FID GEO
Year: 2020

description: Marked along-strike changes in stratigraphy, mountain belt morphology, basement exhumation, and deformation styles characterize the Andean retroarc; these changes have previously been related to spatiotemporal variations in the subduction angle. We modeled new apatite fission track and apatite (U-Th-Sm)/He data from nine ranges located between 26°S and 28°S. Using new and previously published data, we constructed a Cretaceous to Pliocene paleogeographic model that delineates a four-stage tectonic evolution: extensional tectonics during the Cretaceous (120–75 Ma), the formation of a broken foreland basin between 55 and 30 Ma, reheating due to burial beneath sedimentary rocks (18–13 Ma), and deformation, exhumation, and surface uplift during the Late Miocene and the Pliocene (13–3 Ma). Our model highlights how preexisting upper plate structures control the deformation patterns of broken foreland basins. Because retroarc deformation predates flat-slab subduction, we propose that slab anchoring may have been the precursor of Eocene–Oligocene compression in the Andean retroarc. Our model challenges models which consider broken foreland basins and retroarc deformation in the NW Argentinian Andes to be directly related to Miocene flat subduction.
The Extended Chandra Deep Field-South Survey: Optical spectroscopy of faint X-ray sources with the VLT and Keck
Creators: name: Silverman, J. D.
name: Mainieri, V.
name: Salvato, M.
name: Hasinger, G.
name: Bergeron, J.
name: Capak, P.
name: Szokoly, G.
name: Finoguenov, A.
name: Gilli, R.
name: Rosati, P.
name: Tozzi, P.
name: Vignali, C.
name: Alexander, D. M.
name: Brandt, W. N.
name: Lehmer, B. D.
name: Luo, B.
name: Rafferty, D.
name: Xue, Y. Q.
name: Balestra, I.
name: Bauer, F. E.
name: Brusa, M.
name: Comastri, A.
name: Kartaltepe, J.
name: Koekemoer, A. M.
name: Miyaji, T.
name: Schneider, D. P.
name: Treister, E.
name: Wisotski, L.
name: Schramm, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the results of a program to acquire high-quality optical spectra of X-ray sources detected in the E-CDF-S and its central area. New spectroscopic redshifts are measured for 283 counterparts to Chandra sources with deep exposures (t~2-9 hr per pointing) using multi-slit facilities on both the VLT and Keck thus bringing the total number of spectroscopically-identified X-ray sources to over 500 in this survey field. We provide a comprehensive catalog of X-ray sources detected in the E-CDF-S including the optical and near-infrared counterparts, and redshifts (both spectroscopic and photometric) that incorporate published spectroscopic catalogs thus resulting in a final sample with a high fraction (80%) of X-ray sources having secure identifications. We demonstrate the remarkable coverage of the Lx-z plane now accessible from our data while emphasizing the detection of AGNs that contribute to the faint end of the luminosity function at 1.5
description: Accepted for publication in ApJS; 20 pages; 12 figures; High-level data products including redshift catalogs are available from http://member.ipmu.jp/john.silverman/CDFS.html
In-situ Investigation of the Early Stage of TiO2 epitaxy on (001) SrTiO3
Creators: name: Radovic, M.
name: Salluzzo, M.
name: Ristic, Z.
name: Di Capua, R.
name: Lampis, N.
name: Vaglio, R.
name: Granozio, F. Miletto
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on a systematic study of the growth of epitaxial TiO2 films deposited by pulsed laser deposition on Ti-terminated (001) SrTiO3 single crystals. By using in-situ reflection high energy electron diffraction, low energy electron diffraction, x-ray photoemission spectroscopy and scanning probe microscopy, we show that the stabilization of the anatase (001) phase is preceded by the growth of a pseudomorphic Sr-Ti-O intermediate layer, with a thickness between 2 and 4 nm. The data demonstrate that the formation of this phase is related to the activation of long range Sr migration from the substrate to the film. The role of interface Gibbs energy minimization, as a driving force for Sr diffusion, is discussed. Our results enrich the phase diagram of the Sr-Ti-O system under epitaxial strain opening the roudeficient SrTiO phase.
description: 8 pages, 7 figures
Kinematic Fitting for ParticleFlow Detectors at Future Higgs Factories
Creators: name: Radkhorrami, Yasser
name: List, Jenny
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2021
Subjects: electron positron: annihilation
electron positron: colliding beams
detector: design
detector: proposed
vertex: secondary
jet: energy
dijet: mass spectrum
momentum: missing-energy
heavy quark: decay
kinematics
particle flow
Higgs-factory
initial state
electroweak interaction
covariance
lepton
ILD detector
data analysis method
numerical calculations: Monte Carlo

description: Sissa Medialab Trieste, Italy, 1952245 (2021). doi:10.22323/1.398.0761
description: In many analyses in Higgs, top and electroweak physics, the kinematic reconstruction of the final state is improved by constrained fits. This is a particularly powerful tool at $e^{+}e^{-}$ colliders, where the initial state four-momentum is known and can be employed to constrain the final state. A crucial ingredient to kinematic fitting is an accurate estimate of the measurement uncertainties, in particular for composed objects like jets. This contribution will show how the particle flow concept, which is a design-driver for most detectors proposed for future Higgs factories, can --- in addition to an excellent jet energy measurement --- provide detailed estimates of the covariance matrices for each individual particle-flow object (PFO) and each individual jet. Combined with information about leptons and secondary vertices in the jets, the kinematic fit enables to correct $b$- and $c$-jets for missing momentum from neutrinos from semi-leptonic heavy quark decays. The impact on the reconstruction of invariant di-jet masses and the resulting improvement in $ZH$ vs $ZZ$ separation will be presented, using the full simulation of the ILD detector, as an example of highly-granular ParticleFlow optimized detector concept.
description: Published by Sissa Medialab Trieste, Italy
2MASS J01074282+4845188: a new nova-like cataclysmic star with a deep eclipse
Creators: name: Dimitrov, Dinko
name: Kjurkchieva, Diana
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present VRI photometry and low-resolution spectroscopy of the object 2MASS J01074282+4845188. The V-shape of the eclipse, the phase variability of the colour indices as well as the presence of a pre-eclipse hump, standstill and flickering allow us to conclude that it is a nova-like cataclysmic star. This is supported by the observed broad emission Halpha line. Its single profile with a relatively narrow FWHM but large FWZI is typical for a nova-like variable of SW Sex subtype. The observed deep eclipses make the newly discovered cataclysmic star 2MASS J01074282+4845188 an interesting object for future investigation.
description: 11 pages ; 5 figures; 3 tables (Accepted for publication in New Astronomy)
title: AQM en province…
Creators: name: B. De Billy
name: C. Pechin
name: J. Bevalot
Publisher: name: Société Française d’Orthopédie Pédiatrique (SOFOP)
Year: 2023
Subjects: subject: aqm

description: La question de la place de l’AQM dans un service, même CHU, en province, qui ne dispose pas de ce type de laboratoire, mérite d'être posée. L’avantage d’atteindre la fin de carrière est d’avoir vécu l'arrivée de cette révolution et de tout ce qu’elle a pu apporter à la prise en charge des enfants handicapés. Sans remonter à des périodes trop anciennes, la chirurgie de l'enfant spastique est une héritière des chirurgies qui était faites plus dans le cadre des poliomyélites antérieures aigües. Cette chirurgie essentiellement faite de ténotomies et d'arthrodèses a été appliquée à l’enfant spastique. Quelques erreurs majeures ont été commises à l'époque. Le quotidien d'un enfant qui passait entre les mains d'un chirurgien spécialisé en Neuro- orthopédie, été fait de chirurgies multiples réparties sur plusieurs années.
Hard X-ray phase-contrast-enhanced micro-CT for quantifying interfaces within brittle dense root-filling-restored human teeth
Creators: name: Prates Soares, Ana
name: Blunck, Uwe
name: Bitter, Kerstin
name: Paris, Sebastian
name: Rack, Alexander
name: Zaslansky, Paul
Publisher: name: FID GEO
Year: 2020

description: Bonding of resin composite fillings, for example following root-canal treatment, is a challenge because remaining gaps grow and lead to failure. Here, phase-contrast-enhanced micro-computed tomography (PCE-CT) is used to explore methods of non-destructive quantification of the problem, so that countermeasures can be devised. Five human central incisors with damaged crowns were root-filled followed by restoration with a dental post. Thereafter, the crowns were rebuilt with a resin composite that was bonded conventionally to the tooth with a dental adhesive system (Futurabond U). Each sample was imaged by PCE-CT in a synchrotron facility (ID19, European Synchrotron Radiation Facility) with a pixel size of 650 nm. The reconstructed datasets from each sample were segmented and analysed in a semi-automated manner using ImageJ. PCE-CT at sub-micrometre resolution provided images with an impressive increased contrast and detail when compared with laboratory micro-computed tomography. The interface between the dental adhesive and the tooth was often strongly disrupted by the presence of large debonded gaps (on average 34% ± 15% on all surfaces). The thickness of the gaps spanned 2 µm to 16 µm. There was a large variability in the distribution of gaps within the bonding area in each sample, with some regions around the canal exhibiting up to 100% discontinuity. Although only several micrometres thick, the extensive wide gaps may serve as gateways to biofilm leakage, leading to failure of the restorations. They can also act as stress-raising `cracks' that are likely to expand over time in response to cyclic mechanical loading as a consequence of mastication. The observations here show how PCE-CT can be used as a non-destructive quantitative tool for understanding and improving the performance of clinically used bonded dental restorations.
Comparing ground-based observations and a large-eddy simulation of shallow cumuli by isolating the main controlling factors of the mass flux distribution
Creators: name: Sakradzija, Mirjana
name: Klingebiel, Marcus
Publisher: name: FID GEO
Year: 2019

description: The distribution of mass flux at the cloud base has long been thought to be independent of large-scale forcing. However, recent idealized modelling studies have revealed its dependence on some large-scale conditions. Such dependence makes it possible to isolate the observed large-scale conditions, which are similar to those in large-eddy simulations (LES), in order to compare the observed and modelled mass flux distributions. In this study, we derive for the first time the distribution of the cloud-base mass flux among individual shallow cumuli from ground-based observations at the Barbados Cloud Observatory (BCO) and compare it with the Rain In Cumulus over the Ocean (RICO) LES case study. The procedure of cloud sampling in LES mimics the pointwise measurement procedure at the BCO to provide a mass flux metric that is directly comparable with observations. We find a difference between the mass flux distribution observed during the year 2017 at the BCO and the distribution modelled by LES that is comparable to the seasonal changes in the observed distribution. This difference between the observed and modelled distributions is diminished and an extremely good match is found by subsampling the measurements under a similar horizontal wind distribution and area-averaged surface Bowen ratio to those modelled in LES. This provides confidence in our observational method and shows that LES produces realistic clouds that are comparable to those observed in nature under the same large-scale conditions. We also confirm that the stronger horizontal winds and higher Bowen ratios in our case study shift the distributions to higher mass flux values, which is coincident with clouds of larger horizontal areas and not with stronger updrafts.
Photocontrolled Dopamine Polymerization on DNA Origami with Nanometer Resolution
Creators: name: Winterwerber, Pia
name: Harvey, Sean
name: Ng, David Y. W.
name: Weil, Tanja
Publisher: name: FID GEO
Year: 2019

description: Abstract Temporal and spatial control over polydopamine formation on the nanoscale can be achieved by installing an irradiation-sensitive polymerization system on DNA origami. Precisely distributed G-quadruplex structures on the DNA template serve as anchors for embedding the photosensitizer protoporphyrin IX, which—upon irradiation with visible light—induces the multistep oxidation of dopamine to polydopamine, producing polymeric structures on designated areas within the origami framework. The photochemical polymerization process allows exclusive control over polydopamine layer formation through the simple on/off switching of the light source. The obtained polymer–DNA hybrid material shows significantly enhanced stability, paving the way for biomedical and chemical applications that are typically not possible owing to the sensitivity of DNA.