cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Free induction signal from biexcitons and bound excitons
Creators: name: Rashba, Emmanuel I.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: A theory of the free induction signal from biexcitons and bound excitons is presented. The simultaneous existence of the exciton continuum and a bound state is shown to result in a new type of time dependence of the free induction. The optically detected signal increases in time and oscillates with increasing amplitude until damped by radiative or dephasing processes. Radiative decay is anomalously fast and can result in strong picosecond pulses. The expanding area of a coherent exciton polarization (inflating antenna), produced by the exciting pulse, is the underlying physical mechanism. The developed formalism can be applied to different biexciton transients.
description: RevTeX, 20 p. + 2 ps fig. To appear in Phys. Rev. B15
Many-body symbolic dynamics of a classical oscillator chain
Creators: name: Znidaric, Marko
name: Prosen, Tomaz
Publisher: name: arXiv
Year: 2000
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study a certain type of the celebrated Fermi-Pasta-Ulam particle chain, namely the inverted FPU model, where the inter-particle potential has a form of a quartic double well. Numerical evidence is given in support of a simple symbolic description of dynamics (in the regime of sufficiently high potential barrier between the wells) in terms of an (approximate) Markov process. The corresponding transition matrix is formally identical to a ferromagnetic Heisenberg quantum spin-1/2 chain with long range coupling, whose diagonalization yields accurate estimates for a class of time correlation functions of the model.
description: 22 pages in LaTeX with 14 figures; submitted to Nonlinearity ; corrected page offset problem
Critical exponents and amplitude ratios of scalar nonextensive $q$-field theories
Creators: name: Carvalho, P. R. S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We compute the radiative quantum corrections to the critical exponents and amplitude ratios for O($N$) $λϕ^{4}$ scalar high energy nonextensive $q$-field theories. We employ the field theoretic renormalization group approach through six methods for evaluating the high energy nonextensive critical exponents up to next-to-leading order while the high energy nonextensive amplitude ratios are computed up to leading level by applying three methods. Later we generalize these high energy nonextensive finite loop order results for any loop level. We find that the high energy nonextensive critical exponents are the same when obtained through all the methods employed. The same fact occurs for the high energy nonextensive amplitude ratios. Furthermore, we show that these high energy nonextensive universal quantities are equal to their low energy extensive counterparts, thus showing that the nonextensivity is broken down at high energies.
description: 17 pages, 14 figures
Must Quantum Spacetimes Be Euclidean?
Creators: name: Pinto-Neto, N.
name: Santini, E. Sergio
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Bohm-de Broglie interpretation of quantum mechanics is applied to canonical quantum cosmology. It is shown that, irrespective of any regularization or choice of factor ordering of the Wheeler-DeWitt equation, the unique relevant quantum effect which does not break spacetime is the change of its signature from lorentzian to euclidean. The other quantum effects are either trivial or break the four-geometry of spacetime. A Bohm-de Broglie picture of a quantum geometrodynamics is constructed, which allows the investigation of these latter structures. For instance, it is shown that any real solution of the Wheeler-De Witt equation yields a generate four-geometry compatible with the strong gravity limit of General Relativity and the Carroll group. Due to the more detailed description of quantum geometrodynamics given by the Bohm-de Broglie interpretation, some new boundary conditions on solutions of the Wheeler-DeWitt equation must be imposed in order to preserve consistency of this finer view.
description: 42 pages LaTeX, last version with minor corrections, being the most importants on pages 0, 6, 11, 21, 23, and 30 . The new title does not change our conclusions
Effect of tubeimoside I on the activity of cytochrome P450 enzymes in human liver microsomes
Creators: name: Wang, Rui
name: Zheng, Kai
name: Liu, Yunjiao
name: Ji, Shuxia
name: Tang, Yaxin
name: Wang, Jie
name: Jiang, Rong
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Biochemistry
Space Science
Pharmacology
Biotechnology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Developmental Biology
Hematology
Virology

description: This study assessed the effect of tubeimoside I on CYP1A2, 2A6, 2C8, 2C9, 2C19, 2D6, 2E1, and 3A4 to reveal the potential of tubeimoside I to induce drug-drug interaction.The evaluation of cytochromes P450 enzyme (CYP) activity was performed in pooled human liver microsomes with probing substrates of CYP1A2, 2A6, 2C8, 2C9, 2C19, 2D6, 2E1, and 3A4. Typical inhibitors were employed as positive controls and the effect of 0, 2.5, 5, 10, 25, 50, and 100 μM tubeimoside I was investigated.The activity of CYP2D6, 2E1, and 3A4 was significantly inhibited by tubeimoside I with the IC50 values of 10.34, 11.58, and 9.74 μM, respectively. The inhibition of CYP2D6 and 2E1 was competitive with the Ki value of 5.66 and 5.29 μM, respectively. While the inhibition of CYP3A4 was non-competitive with the Ki value of 4.87 μM. Moreover, the inhibition of CYP3A4 was time-dependent with the KI and Kinact values of 0.635 μM−1 and 0.0373 min−1, respectively.Tubeimoside I served as a competitive inhibitor of CYP2D6 and 2E1 exerting weak inhibition and a non-competitive inhibitor of CYP3A4 exerting moderate inhibition. This study assessed the effect of tubeimoside I on CYP1A2, 2A6, 2C8, 2C9, 2C19, 2D6, 2E1, and 3A4 to reveal the potential of tubeimoside I to induce drug-drug interaction. The evaluation of cytochromes P450 enzyme (CYP) activity was performed in pooled human liver microsomes with probing substrates of CYP1A2, 2A6, 2C8, 2C9, 2C19, 2D6, 2E1, and 3A4. Typical inhibitors were employed as positive controls and the effect of 0, 2.5, 5, 10, 25, 50, and 100 μM tubeimoside I was investigated. The activity of CYP2D6, 2E1, and 3A4 was significantly inhibited by tubeimoside I with the IC50 values of 10.34, 11.58, and 9.74 μM, respectively. The inhibition of CYP2D6 and 2E1 was competitive with the Ki value of 5.66 and 5.29 μM, respectively. While the inhibition of CYP3A4 was non-competitive with the Ki value of 4.87 μM. Moreover, the inhibition of CYP3A4 was time-dependent with the KI and Kinact values of 0.635 μM−1 and 0.0373 min−1, respectively. Tubeimoside I served as a competitive inhibitor of CYP2D6 and 2E1 exerting weak inhibition and a non-competitive inhibitor of CYP3A4 exerting moderate inhibition.
Quantification of root-induced shear on sand
Creators: name: biot-bazant, figshare admin
name: Anselmucci, Floriana
name: Andò, Edward
name: Viggiani, Gioacchino
name: Lenoir, Nicolas
name: Peyroux, Robert
name: Arson, Chloe
Publisher: name: The Biot-Bazant Conference
Year: 2021
Subjects: subject: 91402 Geomechanics and Resources Geotechnical Engineering
subject: FOS: Environmental engineering
subject: 40204 Organic Geochemistry
subject: FOS: Earth and related environmental sciences
subject: Biological Engineering

description: This publication is part of the proceedings of the Biot-Bažant Conference on Engineering Mechanics and Physics of Porous Materials, which took place virtually on June 1-3, 2021. It contains a one-page abstract and the video of the talk that was given at the conference.
Trends in comorbidity, acuity, and maternal risk associated with preeclampsia across obstetric volume settings
Creators: name: Booker, Whitney A.
name: Cande V. Ananth
name: Wright, Jason D.
name: Siddiq, Zainab
name: D’Alton, Mary E.
name: Cleary, Kirstin L.
name: Goffman, Dena
name: Friedman, Alexander M.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Computational Biology

description: Objective: The objective of this study was to characterize morbidity, acuity, and maternal risks associated with preeclampsia across hospitals with varying obstetric volumes. Methods: This retrospective cohort analysis used a large administrative data source, the Perspective database, to characterize the risk for preeclampsia from 2006 to 2015. Hospitals were classified as having either low (≤1000), moderate (1001–2000), or high (≥2000) delivery volume. The primary outcomes included preeclampsia, antihypertensive administration, comorbidity, and related severe maternal morbidity. Severe maternal morbidity was estimated using criteria from the Centers for Disease Control and Prevention. Comorbidity was estimated using an obstetric comorbidity index. Univariable comparisons were made with Chi-squared test. Adjusted log linear regression models were fit to assess factors associated with severe morbidity with risk ratios with 95% confidence intervals as the measures of effect. Population weights were applied to create national estimates. Results: Of 36,985,729 deliveries included, 1,414,484 (3.8%) had a diagnosis of preeclampsia. Of these, 779,511 (2.1%) had mild, 171,109 (0.5%) superimposed, and 463,864 (1.3%) severe preeclampsia. The prevalence of mild, superimposed, and severe preeclampsia each increased over the study period with severe and superimposed preeclampsia as opposed to mild preeclampsia increasing the most proportionately (53.2 and 102.5 versus 10.8%, respectively). The use of antihypertensives used to treat severe range hypertension increased with use of intravenous labetalol increasing 31.5%, 43.2%, and 36.1% at low-, medium-, and high-volume hospitals. Comorbid risk also increased across hospital volume settings as did risk for severe maternal morbidity. Conclusions: Preeclampsia is increasing across obstetric care settings with preeclamptic patients demonstrating increasing comorbid risk, increased risk for severe morbidity, and more frequent need for treatment of acute hypertension.
Quanti?cation of root-induced shear on sand
Creators: name: biot-bazant, figshare admin
name: Anselmucci, Floriana
name: Andò, Edward
name: Viggiani, Gioacchino
name: Lenoir, Nicolas
name: Peyroux, Robert
name: Arson, Chloe
Publisher: name: The Biot-Bazant Conference
Year: 2021
Subjects: subject: 91402 Geomechanics and Resources Geotechnical Engineering
subject: FOS: Environmental engineering
subject: 40204 Organic Geochemistry
subject: FOS: Earth and related environmental sciences
subject: Biological Engineering

description: This publication is part of the proceedings of the Biot-Bažant Conference on Engineering Mechanics and Physics of Porous Materials, which took place virtually on June 1-3, 2021. It contains a one-page abstract and the video of the talk that was given at the conference.
Exploring sex-specific neuroendocrine influences on the sensorimotor-association axis in single individuals
Creators: name: Serio, Bianca
name: Yilmaz, Deniz
name: Pritschet, Laura
name: Grotzinger, Hannah
name: Jacobs, Emily G.
name: Eickhoff, Simon B.
name: Valk, Sofie L.
Publisher: name: Forschungzentrum Jülich
Year: 2024
Subjects: subject: 570

description: bioRxiv beta (2024). doi:10.1101/2024.05.04.592501
description: Human neuroimaging studies consistently show multimodal patterns of variability along a key principle of macroscale cortical organization – the sensorimotor-association (S-A) axis. However, little is known about day-to-day fluctuations in functional activity along this axis within an individual, including sex-specific neuroendocrine factors contributing to such transient changes. We leveraged data from two densely sampled healthy young adults, one female and one male, to investigate intra-individual daily variability along the S-A axis, which we computed as our measure of functional cortical organization by reducing the dimensionality of functional connectivity matrices. Daily variability was greatest in temporal limbic and ventral prefrontal regions in both participants, and was more strongly pronounced in the male subject. Next, we probed local and system-level effects of steroid hormones and self-reported perceived stress on functional organization. Our findings revealed modest effects that differed between participants, hinting at subtle –potentially sex-specific– associations between neuroendocrine fluctuations and intra-individual variability along the S-A axis. In sum, our study points to neuroendocrine factors as possible modulators of intra-individual variability in functional brain organization, highlighting the need for further research in larger samples.
description: Published by Cold Spring Harbor Laboratory, NY, Cold Spring Harbor
Agape chloropyga
Creators: name: Spitsyn, V. M.
name: Bolotov, N. I.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Noctuidae
Agape
Agape chloropyga

description: Agape chloropyga (Walker, 1854)
DISTRIBUTION. India, South China, Thailand, Cambodia, Philippines, Indonesia, and northern Australia.
description: Published as part of Spitsyn, V. M. & Bolotov, N. I., 2020, Checklist of the subfamily Aganainae (Lepidoptera: Erebidae) from Laos with new records from adjacent countries, pp. 8-16 in Far Eastern Entomologist 417 on page 15, DOI: 10.25221/fee.417.2, http://zenodo.org/record/7166176
Experimental assessment of a new form of scaling law for near-wall turbulence
Creators: name: Jacob, B.
name: Olivieri, A.
name: Casciola, C. M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Scaling laws and intermittency in the wall region of a turbulent flow are addressed by analyzing moderate Reynolds number data obtained by single component hot wire anemometry in the boundary layer of a flat plate. The paper aims in particular at the experimental validation of a new form of refined similarity recently proposed for the shear dominated range of turbulence, where the classical Kolmogorov-Oboukhov inertial range theory is inappropriate. An approach inspired to the extended self-similarity allows for the extraction of the different power laws for the longitudinal structure functions at several wall normal distances. A double scaling regime is found in the logarithmic region, confirming previous experimental results. Approaching the wall, the scaling range corresponding to the classical cascade-dominated range tends to disappear and, in the buffer layer, a single power law is found to describe the available range of scales. The double scaling is shown to be associated with two different forms of refined similarity. The classical form holds below the shear scale L s . The other, originally introduced on the basis of DNS data for a turbulent channel, is experimentally confirmed to set up above L s . Given the experimental diffulties in the evaluation of the instantaneous dissipation rate, some care is devoted to check that its one-dimensional surrogate does not bias the results. The increased intermittency as the wall is approached is experimentally found entirely consistent with the failure of the refined Kolmogorov-Oboukhov similarity and the establishment of its new form near the wall.
description: 27 pages, 9 figures
Hydro-mechanical analysis of tunneling in anisotropic ground: Effect of face advance on pore pressure evolution.
Creators: name: biot-bazant, figshare admin
name: Guayacan-Carrillo, Lina Maria
name: SULEM, Jean
name: Ghabezloo, Siavash
Publisher: name: The Biot-Bazant Conference
Year: 2021
Subjects: subject: 40312 Structural Geology
subject: FOS: Earth and related environmental sciences
subject: 90501 Civil Geotechnical Engineering
subject: FOS: Civil engineering
subject: 90503 Construction Materials

description: This publication is part of the proceedings of the Biot-Bažant Conference on Engineering Mechanics and Physics of Porous Materials, which took place virtually on June 1-3, 2021. It contains a one-page abstract and the video of the talk that was given at the conference.
Time Reversal Symmetry Breaking and Spontaneous Currents in s-Wave / Normal Metal / d-Wave Superconductor Sandwiches
Creators: name: Huck, Andrea
name: van Otterlo, Anne
name: Sigrist, Manfred
Publisher: name: arXiv
Year: 1997
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the physical properties of an $s$-wave -- normal metal -- $d$-wave junction in terms of the Andreev bound states in the normal metal layer. The phase dependence of bound states with different orientations leads to superconducting states with broken time reversal symmetry for generic orientations of the $d$-wave superconductor crystal. The occurrence of such a state and the associated spontaneous supercurrent along the junction is analyzed in the framework of Ginzburg-Landau theory and by the solution of the Bogolyubov-de Gennes equations.
description: 4 pages RevTeX, 6 postscript figures, one reference added
The role of biofouling development in the loss of seed mussels in aquaculture
Creators: name: South, Paul M.
name: Floerl, Oliver
name: Jeffs, Andrew G.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Hematology

description: The efficient seeding of juvenile mussels is critical to the sustainability and profitability of mussel aquaculture. However, seeding mussels is highly inefficient, with many juveniles being lost in the following few months. One possible cause of these losses could be the development of biofouling assemblages. Therefore, the relationships between biofouling accumulation and losses of juveniles were assessed. Losses of juvenile mussels were initially high (42.9–49.1% over approximately one to two weeks), with lower rates of loss over the following four to five months. Biofouling development followed a successional pattern beginning with colonisation by amphipods, subsequent establishment of macroalgae, and the formation of an assemblage dominated by mussels and sessile invertebrates. However, biofouling development did not play a major role in the loss of juveniles. Rather, large-scale losses of mussels occurred shortly after seeding when biofouling was scant, suggesting alternative causes of loss were in operation.
title: Effectiveness of Ultrathin Al2O3 Capping by Atomic Layer Deposition on the Stability of Single Quantum Dots
Creators: name: Sarkar, Yasir
Publisher: name: Maryland Shared Open Access Repository
Year: 2024
Subjects: subject: Atomic Layer Deposition
subject: Emitter-plasmon Coupling
subject: Photobleaching
subject: Quantum Dots
subject: Ultrathin Capping

description: Quantum dots (QDs) possess the capability to function as single photon sources, and their size-dependent optical properties offer a broad range of applications in nanophotonics. However, photo-bleaching and oxidation lead to the degradation of QDs at room temperature, presenting one of the main obstacles to applications. Here, we enhance the stability of single core-shell QDs at room temperature and shield them from the air by using 0.5, 0.7, and 1nm thick capping layers of Al2O3 deposited via atomic layer deposition (ALD). This also enables tip-enhanced strong coupling (TESC) spectroscopy by allowing the formation of a subnanometer plasmonic cavity between a nano-optical antenna and a metal film below the QD. After being exposed to a continuous-wave laser beam of 2.01 mW power for 3.5 hours, photoluminescence (PL) microscopy of QDs under the 0.5nm capping layer demonstrated no reduction in fluorescent QD number compared to a 51% reduction in the number of fluorescent QDs in a sample without such protection. This protection method opens up new possibilities for increasing the fluorescent lifetime of other types of QDs, such as less stable perovskite quantum dots and studying the effect of new capping materials on emitter-plasmon coupling.
The arbitrariness of potentials in interacting quintessence models
Creators: name: Roy, Nandan
name: Bamba, Kazuharu
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the interacting quintessence model with two different types of interaction by introducing a general parameterization of the quintessence potentials. The form of the quintessence potentials is arbitrary as the recent cosmological observations failed to constrain any particular form of the potentials. We explore the interacting quintessence models and investigate if an introduction of interaction between the dark sectors can constrain any particular form of the potential. Our findings reconfirm the arbitrariness of the quintessence potentials even for the interacting dark energy models. As a result, it is shown that the current observations are able to put an upper bound to the interaction parameter for both of the interactions we consider, although it is not possible to constrain the form of the potentials.
description: 9 pages, 6 figures
Interpretation of coincidence data from strip detectors and extraction of absolute cross section using 3-body Monte Carlo simulation method
Creators: name: Pandit, S. K.
name: Mahata, K.
name: Shrivastava, A.
name: Parkar, V. V.
name: Ramachandran, K.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Accurate knowledge of the response of the detection system is very crucial for unambiguous interpretation of the experimental data. A simulation code has been developed using the Monte Carlo technique involving 3-body kinematics for the analysis of data obtained with segmented large area Si $ΔE-E$ detector telescopes in nuclear reaction measurements. Care was taken in the analysis to maximize the angular coverage and statistics. The emphasis is placed to extract the absolute cross sections of the different reaction processes, for which coincident measurements are unavoidable. The estimated detection efficiency of different coincidence events are found to depend on various parameters, e.g., the relative energy of the breakup fragments, incident beam energy of the projectile, ground state $Q$-value of the reaction, the excitation of the ejectile as well as target like nuclei, mass asymmetry of the breakup fragments, detection threshold, and geometric solid angle of the detection setup. The interpretation of the various observables from the exclusive measurements of breakup and transfer breakup reactions is reported.
description: 16 pages, 12 figures
Hypermagnetic Knots, Chern-Simons Waves and the Baryon Asymmetry
Creators: name: Giovannini, Massimo
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: At finite hyperconductivity and finite fermionic density the flux lines of long range hypermagnetic fields may not have a topologically trivial structure. The combined evolution of the chemical potentials and of pseudoscalar fields (like the axial Higgs), possibly present for temperatures in the TeV range, can twist the hypercharge flux lines, producing, ultimately, hypermagnetic knots (HK). The dynamical features of the HK depend upon the various particle physics parameters of the model (pseudoscalar masses and couplings, strength of the electroweak phase transition, hyperconductivity of the plasma) and upon the magnitude of the primordial flux sitting in topologically trivial configurations of the hypermagnetic field. We study different cosmological scenarios where HK can be generated. We argue that the fermionic number sitting in HK can be released producing a seed for the Baryon Asymmetry of the Universe (BAU) provided the typical scale of the knot is larger than the diffusivity length scale. We derive constraints on the primordial hypermagnetic flux required by our mechanism and we provide a measure of the parity breaking by connecting the degree of knottedness of the flux lines to the BAU. We rule out the ordinary axion as a possible candidate for production (around temperatures of the order of the GeV) of {\em magnetic} knots since the produced {\em electromagnetic} helicity is negligible (for cosmological standard) if the initial amplitude of the axion oscillations is of the order of the Peccei-Quinn breaking scale.
description: 30 pages in Revtex style, 8 figures
Synthesis and antitussive activity of obtucarbamate A derivatives
Creators: name: Ma, Xiaoyun
name: Liang, Zhiyuan
name: Gan, Xiuhai
name: Wei, Gang
name: Zhou, Qingdi
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Plant Biology
subject: FOS: Biological sciences

description: Obtucarbamate A was purified from Disporum cantoniense with good antitussive property. In present work, a series of obtucarbamate A derivatives were designed and synthesized from obtucarbamate A by microwave method, and their antitussive activity were evaluated. The results showed that the toluene diisocyanate was obtained with a yield of 95.1% using a simple method, 1-methyl-2-pyrrolidinone as solvent, temperature of 190 °C, microwave irradiation at 60 W power for 30 min. All compounds have good antitussive activity, and small steric hindrance unsaturated groups of ester chains and amino groups favor activity. It is the first reported of obtucarbamate A derivatives used as antitussive, and the results provide a basis for the application of obtucarbamate derivatives as new antitussive.
Complex spatial organization in a simple model of resource allocation
Creators: name: Zanette, Damian H.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: A dynamical model for the distribution of resources between competing agents is studied. While global competition leads to the accumulation of all the resources by a single agent, local competition allows for a wider resource distribution. Multiplicative processes give rise to almost-ordered spatial structures, thourgh the enhancement of random fluctuations.
description: 4 pages, 3 figures, preliminary version
The role of peacebuilding in Nation-building in Somalia.
Creators: name: Hassan, Abdijabar Eynab
Publisher: name: Zenodo
Year: 2025
Subjects: peacebuilding
in Nation-building
in Somalia.

description: Abstract

The study aimed at establishing the role of peacebuilding in nation building in Somalia, the research was guided bythree objectives that included establishing: a: the role of peacebuilding in community development. b: the role of peacebuilding in sustainable development. c: the role of peacebuilding in nation development. the study employed quantitative approach, using questionnaire method of data collection. This study was carried out within Mogadishu.The sample included 62 participants.

The studies revealed varied perceptions among respondents regarding the visibility and impact of peacebuilding efforts on community projects. A significant portion of respondents have not observed any specific community projects or initiatives directly influenced by peacebuilding efforts. Meanwhile, a notable number of respondents are uncertain about the presence of such projects. However, half of the respondents confirmed observing specific community projects or initiatives directly influenced by peacebuilding efforts. This indicates a mixed awareness and recognition of peacebuilding initiatives within communities.

While examining the specific goals impacted by peacebuilding efforts, the respondents highlighted several areas. Asmaller group selected clean water and sanitation, while a more substantial portion recognized the impact on peace,justice, and strong institutions. Additionally, significant emphasis was placed on the goals of quality education and poverty alleviation. Among these, fostering peace, justice, and strong institutions appears to be the area most influenced by peacebuilding efforts in Somalia.

The focus areas in peacebuilding were also identified through respondent feedback. A considerable portion of respondents stressed the importance of improving the skills and understanding of government officials.Additionally, there was significant emphasis on strengthening institutional structures and coordination mechanisms. The importance of inclusivity in decision-making processes was also highlighted. Comparatively, fewer respondents viewed building partnerships with international organizations and donors as a crucial focus area in peacebuilding efforts.

.Finally, the research suggests recommendations based on findings.
Observation of Three-dimensional Photonic Dirac points and Spin-polarized Surface Arcs
Creators: name: Guo, Qinghua
name: You, Oubo
name: Yang, Biao
name: Sellman, James B.
name: Blythe, Edward
name: Liu, Hongchao
name: Xiang, Yuanjiang
name: Li, Jensen
name: Fan, Dianyuan
name: Chen, Jing
name: Chan, C. T.
name: Zhang, Shuang
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Topological phases arise from the elegant mathematical structures imposed by the interplay between symmetry and topology1-5. From gapped topological insulators to gapless semimetals, topological materials in both quantum and classical systems, have grown rapidly in the last decade. Among them, three-dimensional Dirac semimetal lies at the topological phase transition point between various topological phases. It shares multiple exotic topological features with other topological materials, such as Fermi arcs and chiral anomaly with Weyl semimetals30, spin-dependent surface states with topological insulators29. In spite of the important role it plays in topological physics, no experimental observation of three-dimension Dirac points has been reported in classical systems so far. Here, we experimentally demonstrate three-dimension photonic Dirac points in an elaborately designed photonic metamaterial, in which two symmetrically placed Dirac points are stabilized by electromagnetic duality symmetry31. Spin-polarized surface arcs (counterparts of Fermi arcs in electronic systems) are demonstrated, which paves the way towards spin-multiplexed topological surface wave propagation. Closely linked to other exotic states through topological phase transitions, our system offers an effective medium platform for topological photonics.
description: 18 pages, 4 figures
title: 3D-Fotografie zur objektiven Dokumentation von plastisch-ästhetischen Eingriffen am Beispiel der Gesichtsjuvenation zur Messung der Behandlungsqualität
Creators: name: Brix, Eva
name: Strauss, Catharina
name: Brebant, Vanessa
name: Prantl, Lukas
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung: Die prä- und postoperative konventionelle Fotografie gehört sowohl in der ästhetischen wie auch traumatologischen, plastischen Chirurgie neben der klinischen Befunderhebung zur Dokumentation. In der ästhetischen Chirurgie ist die standardisierte Fotografie für[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 50. Jahrestagung der Deutschen Gesellschaft der Plastischen, Rekonstruktiven und Ästhetischen Chirurgen (DGPRÄC), 24. Jahrestagung der Vereinigung der Deutschen Ästhetisch-Plastischen Chirurgen (VDÄPC)
Homogeneous cosmologies with cosmological constant
Creators: name: Goliath, Martin
name: Ellis, George F. R.
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Spatially homogeneous cosmological models with a positive cosmological constant are investigated, using dynamical systems methods. We focus on the future evolution of these models. In particular, we address the question whether there are models within this class that are de Sitter-like in the future, but are tilted.
description: 10 pages, 13 eps-figures. Submitted to Phys. Rev. D
Band gaps and phonons of quasi-bulk rocksalt ScN
Creators: name: Grümbel, J.
name: Oshima, Y.
name: Dubroka, A.
name: Ramsteiner, M.
name: Goldhahn, R.
name: Feneberg, M.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: ScN is an emerging transition metal nitride with unique physical properties arising from the d-electrons of Sc. In this work we present the results of optical characterization techniques spectroscopic ellipsometry, Raman spectroscopy, and photoluminescence measurements of a 40 $μ$m thick, fully relaxed, and only weakly n-type doped ($n = 1.2 \times 10^{18}$ cm$^{-3}$) ScN film deposited by halide vapor phase epitaxy (HVPE) on r-sapphire substrate. Spectroscopic ellipsometry yields an indirect bandgap of 1.1 eV while the lowest direct interband transition is observed at $E_\mathrm{g,opt} = $ 2.16 eV in the dielectric function. A broad luminescence feature at 2.15 eV is observed, matching this transition. We derive an estimate for the exciton binding energy ($E_{bX}\approx $14 meV) as well as the Born effective charges $Z_\mathrm{Sc}^* = -Z_\mathrm{N}^* = 3.78$. In the infrared spectral region we observe a strong phonon and a weak plasmon absorption. We precisely determine the transverse optical phonon eigenfrequency ($ω_\mathrm{TO} = $340.7 cm$^{-1}$), the high frequency dielectric constant ($\varepsilon_\infty = 8.3$) and the static dielectric constant ($\varepsilon_\mathrm{stat} = 29.5$). Raman measurements using various excitation energies show resonant multi-phonon scattering up to 6LO (6th order overtone for longitudinal optical (LO) phonons) for excitation above the optical band gap ($E_\mathrm{Laser} > E_\mathrm{g,opt}$), where the allowed 2LO scattering is the dominant scattering mechanism for all excitation energies. Their characteristic parameters determined from Lorentzian line shape fitting yield $ω_\mathrm{LO} = $681 cm$^{-1}$ and an increased broadening and reduced asymmetry for higher LO scattering order $n$.
title: Eine anatomische Machbarkeitsstudie zum Temporalis Muskel Transfer für die Reanimation des gelähmten Gesichts
Creators: name: Zhang, Yi
name: Steinbacher, Johannes
name: Tzou, Chieh-Han John
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: PatientInnen mit Fazialisparese sind betroffen von motorischen und ästhetischen Defiziten. Der Transfer des M. temporalis ist eine Methode zur Wiederherstellung des Lächelns. Viele Modifikationen haben sich davon ergeben und der Transfer des M. temporalis mit einer Fascia Lata[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 50. Jahrestagung der Deutschen Gesellschaft der Plastischen, Rekonstruktiven und Ästhetischen Chirurgen (DGPRÄC), 24. Jahrestagung der Vereinigung der Deutschen Ästhetisch-Plastischen Chirurgen (VDÄPC)
Reynolds' Limit Formula for Dorodnitzyn's Atmospheric Boundary Layer in Convective Conditions
Creators: name: Valencia-Negrete, C. V.
name: Gay-García, C.
name: Carsteanu, A. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q30, 76N15, 76N20

description: Atmospheric convection is an essential aspect of atmospheric movement, and it is a source of errors in Climate Models. Being able to generate approximate limit formulas and compare the estimations they produce, could give a way to reduce them. In this article, it is shown that it is enough to assume that the velocity's $L^2$-norm is bounded, has locally integrable, $L^1_{loc}$, weak partial derivatives up to order two, and a negligible variation of its first velocity's coordinate in direction parallel to the surface, to obtain a Reynolds' limit formula for a Dorodnitzyn's compressible gaseous Boundary Layer in atmospheric conditions.
description: 24 pages, 1 figure
title: Mikroanatomische Studie an 106 Gesichtshälften – Axonkapazitäten klinisch wichtiger Spendernervenäste zur fazialen Reanimation mittels Cross-Face-Nerve-Grafting
Creators: name: Engelmann, Simon
name: Rüwe, Marc
name: Taeger, Christian
name: Mandlik, Veronika
name: Tamm, Ernst
name: Bleys, Ronald
name: Prantl, Lukas
name: Kehrer, Andreas
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung: Irreversible Fazialisparesen verursachen schwere funktionelle und ästhetische Einschränkungen. Wesentliches Kriterium zur erfolgreichen fazialen Reanimation mittels Cross-face-Nerven- (CFNG) und funktionellen Muskeltransplantationen ist die Axonkapazität zygomaticobuccaler[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 50. Jahrestagung der Deutschen Gesellschaft der Plastischen, Rekonstruktiven und Ästhetischen Chirurgen (DGPRÄC), 24. Jahrestagung der Vereinigung der Deutschen Ästhetisch-Plastischen Chirurgen (VDÄPC)
2008-shaldenra-COCd, Mossbauer.pdf
Creators: name: Batoo, Khalid
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 510401
subject: Condensed matter characterisation technique development

description: In the present work, we have studied the magnetic environment of Fe atoms in Cd-doped cobalt ferrite using Mo¨ ssbauer spectroscopy. A series of six samples with Co0.5CdxFe2.5?xO4 compositions (0.0pxp0.5) was prepared by sol–gel technique and then investigated by X-ray diffraction at room temperature and Mo¨ ssbauer spectroscopy measurements in the transmission geometry at 78 K. Results of the XRD measurements indicate that all samples exhibit a single-phase cubic spinel structure. The analysis of the Mo¨ ssbauer spectra shows a decrease in hyperfine magnetic field decreases at A and B site on increasing the doping of Cd ions. The appearance of the paramagnetic doublet at x ¼ 0.5 clearly indicates that A–B super-exchange decreases due to dilution of the sub-lattice by Cd ions. The isomer shift values calculated from the fitting of the Mossbauer spectra clearly indicate that the resolved sextets in studied samples are due to Fe3+ ions only.
Effect of Scalar Boson on Fermionic Dark Star
Creators: name: Wahidin, A. B.
name: Rahmansyah, A.
name: Sulaksono, A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The role of scalar boson exchange as a mediator of the fermionic dark particle interaction and the mass of dark particle on the bulk properties of fermionic dark stars including their moment of inertia and tidal deformability are studied. We have found that the role of the attractive nature of the scalar boson exchange and the fermionic dark particle mass can control the stiffness of the fermionic dark star equation of state. By increasing the strength of scalar boson coupling, the fermionic dark star becomes more compact. As a consequence, if scalar boson exchange contribution is included the compactness of a dark star can exceed $C$=0.22. We also compare the fermionic dark stars moment of inertia and tidal deformability to those of neutron stars (with and without hyperons in neutron star core) predicted by relativistic mean field model. It is evidence that the properties of both types of stars are quite different. We also have found that the universal I-Love relation in fermionic dark stars is not affected by scalar boson exchange contribution and the fermionic dark particle mass. Possible observations of fermionic dark stars are also discussed.
description: 27 pages,11 figures, accepted for publication in IJMPD
title: Optimierung der Spendernervenwahl zur fazialen Reanimation bei Fazialisparese: Anatomische Studie zur Korrelation der Axonkapazität mit dem Durchmesser klinisch relevanter zygomaticobuccaler Fazialisnervenäste
Creators: name: Kehrer, Andreas
name: Rüwe, Marc
name: Engelmann, Simon
name: Taeger, Christian
name: Geis, Sebastian
name: Tamm, Ernst
name: Bleys, Ronald
name: Prantl, Lukas
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung: Periphere Fazialisparesen verursachen schwere funktionelle, ästhetische und psychische Beeinträchtigungen. Eine Wiederherstellung von Funktion und Mimik ist durch die Transplantation von Cross-Face-Nerven-Grafts (CFNG), Nerventransfers und funktionellen Muskeltransplantaten [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 50. Jahrestagung der Deutschen Gesellschaft der Plastischen, Rekonstruktiven und Ästhetischen Chirurgen (DGPRÄC), 24. Jahrestagung der Vereinigung der Deutschen Ästhetisch-Plastischen Chirurgen (VDÄPC)
Phase-resolved spectral analysis of the 11 millihertz quasi-periodic oscillation in the black-hole candidate H1743-322
Creators: name: Cheng, Zheng
name: Méndez, Mariano
name: Altamirano, Diego
name: Beri, Aru
name: Wang, Yanan
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: H1743-322 is one of the few black hole candidates (BHCs) in low-mass X-ray binaries that shows mHz quasi-periodic oscillations (QPOs) that are not associated with the more common type A, B and C oscillations seen in the X-ray light curves of typical BHCs systems. To better understand the physical origin of the mHz oscillations, we carried out a phase-resolved spectroscopic study of two RXTE observations of this source. As previously reported, the averaged energy spectra of H1743-322 shows a strong iron line at $\sim6.5$ keV. Here we found evidence that the line flux appears to be modulated at twice the frequency of the mHz QPO. This line flux modulation is very similar to the one previously found for the type-C QPO in this source. We interpret the possibly periodic line flux modulation with this mHz QPO in terms of Lense-Thirring precession of the inner flow, and discuss the possible connection with the modulation of the line properties with the type-C QPO frequency.
description: 11 pages, 6 figures, 2 tables
Bid distributions of competing agents in simple models of auctions
Creators: name: D'Hulst, R.
name: Rodgers, G. J.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Trading and Market Microstructure (q-fin.TR)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: Models of auctions or tendering processes are introduced. In every round of bidding the players select their bid from a probability distribution and whenever a bid is unsuccessful, it is discarded and replaced. For simple models, the probability distributions evolve to a stationary power law with the exponent dependent only on the number of players. For most situations, the system converges towards a state where all players are identical. A number of variations of this model are introduced and the application of these models to the dynamics of market makers is discussed. The effect of price uncertainty on bid distributions is presented. An underlying market structure generates heterogenous agents which do not have power law bid distribution in general.
description: 10 pages, 4 figures, submitted to publication
Laboratory investigation of the transversely isotropic, stress dependent poroelastic properties of shale
Creators: name: biot-bazant, figshare admin
name: Braun, Philipp
name: Ghabezloo, Siavash
name: Delage, Pierre
name: SULEM, Jean
name: Conil, Nathalie
Publisher: name: The Biot-Bazant Conference
Year: 2021
Subjects: subject: 91402 Geomechanics and Resources Geotechnical Engineering
subject: FOS: Environmental engineering
subject: 40312 Structural Geology
subject: FOS: Earth and related environmental sciences

description: This publication is part of the proceedings of the Biot-Bažant Conference on Engineering Mechanics and Physics of Porous Materials, which took place virtually on June 1-3, 2021. It contains a one-page abstract and the video of the talk that was given at the conference.
Metabolism and disposition of lesinurad, a uric acid reabsorption inhibitor, in humans
Creators: name: Shah, Vishal
name: Yang, Chun
name: Shen, Zancong
name: Kerr, Bradley M.
name: Tieu, Kathy
name: Wilson, David M.
name: Hall, Jesse
name: Gillen, Michael
name: Lee, Caroline A.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Physiology
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology
subject: Virology

description: The objectives of this study were to determine the absolute bioavailability of lesinurad and to characterized its disposition in humans.The oral bioavailability assessment was performed using a clinical design of simultaneous dosing of a therapeutic oral dose of lesinurad with an intravenous infusion of [14C]lesinurad microdose. The bioavailability of lesinurad was determined to be 100%.The disposition of lesinurad in humans involves hepatic oxidation and renal elimination following administration of oral [14C]lesinurad dose.Metabolism of lesinurad occurred post-systemically with low circulating levels of metabolites <3% of total radioactivity as 74.2% of total radioactivity was attributed to lesinurad.In vitro metabolism studies identified CYP2C9 as the predominant isoform, and summation of metabolites indicated that it was responsible for ∼50% of metabolism. The objectives of this study were to determine the absolute bioavailability of lesinurad and to characterized its disposition in humans. The oral bioavailability assessment was performed using a clinical design of simultaneous dosing of a therapeutic oral dose of lesinurad with an intravenous infusion of [14C]lesinurad microdose. The bioavailability of lesinurad was determined to be 100%. The disposition of lesinurad in humans involves hepatic oxidation and renal elimination following administration of oral [14C]lesinurad dose. Metabolism of lesinurad occurred post-systemically with low circulating levels of metabolites <3% of total radioactivity as 74.2% of total radioactivity was attributed to lesinurad. In vitro metabolism studies identified CYP2C9 as the predominant isoform, and summation of metabolites indicated that it was responsible for ∼50% of metabolism.
Korean approach to Open Science Platforms, including any applications of CARE principles - Focusing on Research data -
Creators: name: Um, Jung-Ho
Publisher: name: Zenodo
Year: 2024

description: It's the presentation file spoken at the Oceania Plenary Session: ‘Collaborating Internationally for Regional Benefit’  in 22nd Virtual RDA Plenary meeting.

This file involves the introduction of DataON(https://dataon.kisti.re.kr) and my opinion about CARE principles and DataON.