cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Granulation in K-type Dwarf Stars. I. Spectroscopic observations
Creators: name: Ramirez, I.
name: Prieto, C. Allende
name: Lambert, D. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Very high resolution (R~160,000-210,000), high signal-to-noise ratio (S/N>300) spectra of nine bright K-dwarfs were obtained with the 2dcoude spectrograph on the 2.7m Telescope at McDonald Observatory to determine wavelength shifts and asymmetries of Fe I lines. The observed shapes and positions of Fe I lines reveal asymmetries and wavelength shifts that indicate the presence of granulation. In particular, line bisectors show characteristic C-shapes while line core wavelengths are blueshifted by an amount that increases with decreasing equivalent width (EW). On average, Fe I line bisectors have a span that ranges from nearly 0 for the weakest lines (residual core flux > 0.7) to about 75 m/s for the strongest lines (residual core flux ~ 0.3) while wavelength shifts range from about -150 m/s in the weakest (EW ~ 10 mA) lines to 0 in the strongest (EW > 100 mA) features. A more detailed inspection of the bisectors and wavelength shifts reveals star-to-star differences that are likely associated with differences in stellar parameters, projected rotational velocity, and stellar activity. For the inactive, slow projected rotational velocity stars, we detect, unequivocally, a plateau in the line-shifts at large EW values (EW > 100 mA), a behavior that had been identified before only in the solar spectrum. The detection of this plateau allows us to determine the zero point of the convective blueshifts, which is useful to determine absolute radial velocities. Thus, we are able to measure such velocities with a mean uncertainty of about 60 m/s.
description: A&A, in press
HI content and star formation in the interacting galaxy Arp86
Creators: name: Sengupta, Chandreyee
name: Dwarakanath, K. S.
name: Saikia, D. J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the results of Giant Metrewave Radio Telescope (GMRT) observations of the interacting system Arp86 in both neutral atomic hydrogen, HI, and in radio continuum at 240, 606 and 1394 MHz. In addition to HI emission from the two dominant galaxies, NGC7752 and NGC7753, these observations show a complex distribution of HI tails and bridges due to tidal interactions. The regions of highest column density appear related to the recent sites of intense star formation. HI column densities $\sim1-$1.5 $\times10^{21}$ cm$^{-2}$ have been detected in the tidal bridge which is bright in Spitzer image as well. We also detect HI emission from the galaxy 2MASX J23470758+2926531, which is shown to be a part of this system. We discuss the possibility that this could be a tidal dwarf galaxy. The radio continuum observations show evidence of a non-thermal bridge between NGC7752 and NGC7753, and a radio source in the nuclear region of NGC7753 consistent with it having a LINER nucleus.
description: accepted for publication in MNRAS
Is the solar convection zone in strict thermal wind balance?
Creators: name: Brun, A. S.
name: Antia, H. M.
name: Chitre, K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context: The solar rotation profile is conical rather than cylindrical as one could expect from classical rotating fluid dynamics (e.g. Taylor-Proudman theorem). Thermal coupling to the tachocline, baroclinic effects and latitudinal transport of heat have been advocated to explain this peculiar state of rotation. Aims: To test the validity of thermal wind balance in the solar convection zone using helioseismic inversions for both the angular velocity and fluctuations in entropy and temperature. Methods: Entropy and temperature fluctuations obtained from 3-D hydrodynamical numerical simulations of the solar convection zone are compared with solar profiles obtained from helioseismic inversions. Results: The temperature and entropy fluctuations in 3-D numerical simulations have smaller amplitude in the bulk of the solar convection zone than those found from seismic inversions. Seismic inversion find variations of temperature from about 1 K at the surface up to 100 K at the base of the convection zone while in 3-D simulations they are of order 10 K throughout the convection zone up to 0.96 $R_{\odot}$. In 3-D simulations, baroclinic effects are found to be important to tilt the isocontours of $Ω$ away from a cylindrical profile in most of the convection zone helped by Reynolds and viscous stresses at some locations. By contrast the baroclinic effect inverted by helioseismology are much larger than what is required to yield the observed angular velocity profile. Conclusion: The solar convection does not appear to be in strict thermal wind balance, Reynolds stresses must play a dominant role in setting not only the equatorial acceleration but also the observed conical angular velocity profile.
description: 8 pages, 6 figures (low resolution), Accepted by Astronomy and Astrophysics - Affiliation: (1) AIM, CEA/DSM-CNRS-Univ. Paris Diderot, IRFU/SAp, France & (2) LUTH, Observatoire de Paris, CNRS-Univ. Paris Diderot, France ; (3) Tata Institute of Fundamental Research, India; (4) Centre for Basic Sciences, University of Mumbai, India
Friedrich Hölderlins Italienbild: Ein Versuch
Creators: name: Reitani, Luigi
Publisher: name: Università degli Studi di Milano
Year: 2014

description: This paper focuses on Hölderlin’s Italian imagery, which has scarcely been investigated in previous research. Both as a geographical and metaphorical locus and as a literary and linguistic reference, Italy emerges as being more intensely present in Hölderlin’s life and work than has hitherto been assumed.
description: Studia theodisca, Studia theodisca – Hölderliniana I (2014)
L’utilità della poesia: la lettera di Hölderlin al fratello Karl del I gennaio 1799. Una proposta di lettura
Creators: name: Polledri, Elena
Publisher: name: Università degli Studi di Milano
Year: 2014

description: After depicting the core function of correspondence for understanding Hölderlin, as well as contextualizing the letter to his brother Carl (January 1st 1799) in both his life and work, a close reading of this document focuses step by step on its political, philosophical and first and foremost poetological issues.
description: Studia theodisca, Studia theodisca – Hölderliniana I (2014)
Additional file 2 of An international survey on aminoglycoside practices in critically ill patients: the AMINO III study
Creators: name: Roger, Claire
name: Louart, Benjamin
name: Elotmani, Loubna
name: Barton, Greg
name: Escobar, Leslie
name: Koulenti, Despoina
name: Lipman, Jeffrey
name: Leone, Marc
name: Muller, Laurent
name: Boutin, Caroline
name: Amour, Julien
name: Banakh, Iouri
name: Cousson, Joel
name: Bourenne, Jeremy
name: Constantin, Jean-Michel
name: Albanese, Jacques
name: Roberts, Jason A.
name: Lefrant, Jean-Yves
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 2: Table S1.
Moiré circuits: engineering magic-angle behaviors
Creators: name: Zhang, Weixuan
name: Zou, Deyuan
name: Pei, Qingsong
name: He, Wenjing
name: Sun, Houjun
name: Zhang, Xiangdong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Moiré superlattices in the twisted bilayer graphene provide an unprecedented platform to investigate a wide range of exotic quantum phenomena. Recently, the twist degree of freedom has been introduced into various classical wave systems, giving rise to new ideas for the wave control. The question is whether twistronics and moiré physics can be extended to electronics with potential applications in the twist-enabled signal processing. Here, we demonstrate both in theory and experiment that lots of fascinating moiré physics can be engineered using electric circuits with extremely high degrees of freedom. By suitably designing the interlayer coupling and biasing of one sublattice for the twisted bilayer circuit, the low-energy flat bands with large bandgaps away from other states can be realized at various twist angles. Based on the moiré circuit with a fixed twist angle, we experimentally demonstrate the effect of band narrowing as well as the localization of electric energy when a magic value of the interlayer coupling is applied. Furthermore, the topological edge states, which originate from the moiré potential induced pseudomagnetic field, are also observed for the first time. Our findings suggest a flexible platform to study twistronics beyond natural materials and other classical wave systems, and may have potential applications in the field of intergraded circuit design.
description: 16 pages, 5 figures
The Symphony of the Fractal Brain: Emergent Neurodynamics from Hausdorff Dimensions to Wavelet-Orchestrated Neural Intelligence
Creators: name: Dr. Arsalan Zeyanli
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Applied mathematics
subject: Computational Neuroscience
subject: Neural Biomedical Engineering
subject: Biomimetic Artificial Intelligence
subject: Nonlinear Dynamical Systems
subject: Biological Signal Processing
subject: Neurological Disorder Modeling
subject: Fractal Neurodynamics
subject: Dynamic Hausdorff Dimension (DHD)
subject: Wavelet-Resonance Circuits
subject: Fractional Calculus in Neuroscience
subject: Biomimetic Synapses
subject: Neuromorphic Engineering
subject: Neural Information Complexity
subject: Caputo Fractional Derivative
subject: Neurodegenerative Biomarkers
subject: Multiscale Signal Processing
subject: Mexican Hat Wavelet
subject: Cognitive Fractal Geometry
subject: Adaptive Neuro-AI
subject: Synaptic Plasticity Modeling
subject: Energy-Efficient Neural Networks
subject: Consciousness Dynamics
subject: Nonlocal Neural Memory
subject: Hodgkin-Huxley Fractional Model
subject: Brain-Inspired Computing
subject: Self-Similar Neural Architectures
subject: Dr. Arsalan Zeynali
subject: Arsalan Zeynali
subject: دکتر ارسلان زینالی
subject: ارسلان زینالی

description: In the profound harmony of fractal geometry and neural symphonies, this research crafts a novel language to decipher the cosmic dance of the brain. Through the threads of wavelet mathematics and fractional derivatives, it interprets the dynamic architecture of neurons as a prism of infinite Hausdorff dimensions, where complexity is not a static numeral but a living melody of consciousness
Real Estate Investment Trusts (REITs) Corporate Governance and Investment Decision-Making in the United Kingdom, South Africa and Nigeria
Creators: name: Omokhomion, Itua Cyril
Publisher: name: London South Bank University
Year: 2023

description: Adopting Real Estate Investment Trusts (REITs) has been relatively slow due to corporate governance issues and a limited understanding of investment decision-making processes. This study aims to enhance the performance of REITs by developing a Corporate Governance Scoring Framework and improving the investment decision-making process. A mixed-method research strategy was employed to gather data on investment decisionmaking processes and corporate governance in the UK, SA, and Nigeria from 2014-2019. Qualitative data was collected through semi-structured telephone interviews with key decision-makers in the three regimes and analysed using content and discourse analysis techniques. Quantitative data was obtained from the annual financial reports of listed REITs during the study period and analysed using OLS, fixed effects, and random effect models. The Integrated Corporate Governance Index (ICGI), a self-scoring framework, was used to measure the quality of corporate governance strength. The qualitative analysis identified four stages in the investment decision-making process: strategy, search, analysis and adjustment, and consultation or decision and review. The interviews revealed that the board, remuneration, and fee proxies were relevant factors across all three regimes, with audit and ownership also significant in the developing regimes of SA and Nigeria. The board's reputation, experience, and management role were highlighted as crucial during the decision-making process. Performance factors such as 'Operational Stability,' 'Tenant Quality,' 'Experience,' and metrics including 'Rental Income,' 'Dividend Payment,' and 'Yield' were identified. The quantitative analysis demonstrated that adherence to corporate governance codes was highest in the UK, followed by SA and Nigeria. Regression analysis results showed that a higher ICGI score improved return on assets (ROA) and return on equity (ROE) in the UK but not in SA and Nigeria. The index did not significantly impact firm value in the UK and pooled country analysis, but it led to better firm valuation in SA. In the Nigeria REIT regime, the ICGI harmed firm valuation. The study concluded that adherence to country-level corporate governance was more predictive of operational performance than firm valuation. In summary, this study contributes to the existing knowledge by providing insights into the investment decision-making processes of REITs and the importance of corporate governance in improving their performance. The developed Corporate Governance Scoring Framework offers a valuable tool for evaluating the quality of corporate governance in REITs, but further refinement is necessary to keep up with evolving policies.
MPEC 2023-Y63 : DAILY ORBIT UPDATE (2023 December 20)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Measurement of Bc Mass and Lifetime at LHCb
Creators: name: He, Jibo
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The $B_c^\pm$ mass and lifetime measurements using the decay $B_c^\pm \to J/ψπ^\pm$ at the LHCb experiment were studied. About 310 signal events are expected for a data set which corresponds to an integrated luminosity of 1 fb$^{-1}$, with a $B/S$ ratio equal to 2. Based on these data, the $B_c^\pm$ mass and lifetime can be measured with expected statistical errors below 2 MeV/$c^2$ and 30 fs, respectively.
description: 5 pages, 2 figures, Proceedings of the XVII International Workshop on Deep-Inelastic Scattering and Related Topics, April 26-30, 2009 Madrid, Spain
Zastosowanie grafów i sieci w systemach rekomendacji (Przedsiębiorstwo w nowej rzeczywistości gospodarczej. Relacje – zmiany – strategie)
Creators: name: Malinowski, Michał
Publisher: name: figshare
Year: 2021
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 80611 Information Systems Theory
subject: 80201 Analysis of Algorithms and Complexity

description: Celem niniejszego rozdziału jest przedstawienie wykorzystania teorii grafów i sieci w obszarze rekomendacji, w tym modeli matematycznych stanowiących podstawę do konstruowanych na ich bazie algorytmów i systemów rekomendacji. W pierwszej części rozdziału został zawarty syntetyczny opis obszaru rekomendacji, ze szczególnym uwzględnieniem typów rozwiązań rekomendacyjnych oraz matematycznego opisu problemu. W kolejnej części opracowania zostały przedstawione modele i techniki wykorzystania grafów i sieci oraz przykładowe algorytmy zbudowane na ich bazie.
IMPROVEMENT OF MECHANICAL AND ELECTRICAL PROPERTIES OF PNN-PZT CERAMICS WITH STRONTIUMCONTENT
Creators: name: Pichitchai Butnoi, Nuttapon Pisitpipathsin
Publisher: name: SUT
Year: 2014
Subjects: Piezoelectric, PNN-PZT, dielectric, lowtemperature, PZT

description: 1, 21, Suranaree Journal of Science and Technology
Electron-hole spectra created by adsorption on metals from density-functional theory
Creators: name: Timmer, M.
name: Kratzer, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Non-adiabaticity in adsorption on metal surfaces gives rise to a number of measurable effects, such as chemicurrents and exo-electron emission. Here we present a quantitative theory of chemicurrents on the basis of ground-state density-functional theory (DFT) calculations of the effective electronic potential and the Kohn-Sham band structure. Excitation probabilities are calculated both for electron-hole pairs and for electrons and holes separately from first-order time-dependent perturbation theory. This is accomplished by evaluating the matrix elements (between Kohn-Sham states) of the rate of change of the effective electronic potential between subsequent (static) DFT calculations. Our approach is related to the theory of electronic friction, but allows for direct access to the excitation spectra. The method is applied to adsorption of atomic hydrogen isotopes on the Al(111) surface. The results are compatible with the available experimental data (for noble metal surfaces); in particular, the observed isotope effect in H versus D adsorption is described by the present theory. Moreover, the results are in qualitative agreement with computationally elaborate calculations of the full dynamics within time-dependent density-functional theory, with the notable exception of effects due to the spin dynamics. Being a perturbational approach, the method proposed here is simple enough to be applied to a wide class of adsorbates and surfaces, while at the same time allowing us to extract system-specific information.
description: 23 pages, 9 figures, accepted for publication in Phys. Rev. B, http://prb.aps.org/, v2: some major improvements, plus correction of minor errors
Comparison of Helium Abundance between ICMEs and Solar Wind near 1 AU
Creators: name: Song, Hongqiang
name: Cheng, Xin
name: Li, Leping
name: Zhang, Jie
name: Chen, Yao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The Helium abundance, defined as $A_{He}=n_{He}/n_{H}\times 100$, is $\sim$8.5 in the photosphere and seldom exceeds 5 in fast solar wind. Previous statistics have demonstrated that $A_{He}$ in slow solar wind correlates tightly with sunspot number. However, less attention is paid to the solar cycle dependence of $A_{He}$ within interplanetary coronal mass ejections (ICMEs) and comparing the $A_{He}$ characteristics of ICMEs and solar wind. In this paper we conduct a statistical comparison of Helium abundance between ICMEs and solar wind near 1 AU with observations of \textit{Advanced Composition Explorer} from 1998 to 2019, and find that the ICME $A_{He}$ also exhibits the obvious solar cycle dependence. Meanwhile, we find that the $A_{He}$ is obviously higher within ICMEs compared to solar wind, and the means within 37\% and 12\% of ICMEs exceed 5 and 8.5, respectively. It is interesting to answer where and how the high Helium abundance originates. Our statistics demonstrate that 21\% (3\%) of ICME (slow wind) $A_{He}$ data points exceed 8.5 around solar maximum, which decreases dramatically near minimum, while no such high $A_{He}$ values appear in the fast wind throughout the whole solar cycle. This indicates that the high $A_{He}$ (e.g., $>$8.5) emanates from active regions as more ICMEs and slow wind originates from active regions around maximum, and supports that both active regions and quiet-Sun regions are the sources of slow wind. We suggest that the high $A_{He}$ from active regions could be explained by means of the magnetic loop confinement model and/or photoionization effect.
description: 9 pages, 3 figures, accepted for publication in ApJ
The origins of electromechanical indentation size effect in ferroelectrics
Creators: name: Gharbi, M.
name: Sun, Z. H.
name: Sharma, P.
name: White, K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Metals exhibit a size-dependent hardening when subject to indentation. Mechanisms for this phenomenon have been intensely researched in recent times. Does such a size-effect also exist in the electromechanical behavior of ferroelectrics?--if yes, what are the operative mechanisms? Our experiments on BaTiO3 indeed suggest an electromechanical size-effect. We argue, through theoretical calculations and differential experiments on another non-ferroelectric piezoelectric (Quartz), that the phenomenon of flexoelectricity(as opposed to dislocation activity) is responsible for our observations. Flexoelectricity is the coupling of strain gradients to polarization and exists in both ordinary and piezoelectric dielectrics. In particular, ferroelectrics exhibit an unusually large flexoelectric response.
description: in review
Slenderness effects in prestressed concrete columns
Creators: name: Alcock, William John
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this investigation was to compare the behaviour of real prestressed concrete columns to the predictions of a mathematical model. A previously developed computer programme, based on the mathematical model, had suggested several problems which needed examination. The programme indicated that, in some circumstances, an unstable equilibrium configuration could occur. The existence of this unstable loading path meant that a snap-through type of buckling was a possibility. To check these hypotheses, six T-shaped prestressed concrete columns were constructed and tested at the University of British Columbia. In most instances, experimental observations closely matched the predictions of the mathematical model. The computed and observed peak loads compared well and the presence of an unstable equilibrium path was confirmed. Unfortunately, attempts to measure curvatures and to compare them with mathematically obtained values were unsuccessful. No satisfactory explanation for this problem was found. Having established the validity of the mathematical model through the experimental programme, an examination of snap- — through buckling was made. It was concluded that prestressed concrete columns are not prone to snap-through buckling, although sufficient additional energy applied to a column might result in a jump from a stable equilibrium configuration to an unstable one.
Mustervertrag Datennutzung KonsortSWD
Creators: name: Schallaböck, Jan
name: Hoffstätter, Ute
name: Buck, Daniel
name: Linne, Monika
Publisher: name: Zenodo
Year: 2023

description: Dieser Musterdatennutzungsvertrag wurde 2021 im Rahmen von KonsortSWD erarbeitet. Zwei Updates wurden 2023 veröffentlicht. Basis waren Datennutzungsverträge von Forschungsdatenzentren (FDZ), die durch den RatSWD akkreditiert sind. Auf freiwilliger Basis stellten 20 FDZ ihre Datennutzungsverträge für die Konzeption eines harmonisierten Vertrags zur Verfügung. Darauf aufbauend wurde unter Expertise der Kanzlei iRights.Law ein Vertrag für die Datenbereitstellung – auch personenbezogener Daten – im In- und Ausland unter Berücksichtigung der DSGVO erarbeitet.

Die Veröffentlichung beinhaltet:

Mustervertrag Datennutzung inkl. Anhänge sowie drei Vertragserweiterungen (DE), mit und ohne Nachverfolgung der Änderungen zur vorherigen Version

Mustervertrag Datennutzung inkl. Anhänge sowie drei Vertragserweiterungen (EN)

Erläuterungen zum Mustervertrag sowie die Beantwortung rechtlicher Fragen (DE)

Änderungsprotokoll (DE)

Wichtig: Wir freuen uns sehr, wenn Sie den Mustervertrag nutzen möchten. Bitte beachten Sie dabei die beigefügten Erläuterungen. Sie können den gesamten Vertrag oder Teile davon frei nutzen. Dennoch freuen wir uns sehr über eine kurze Nachricht, dass Sie den Vertrag nutzen und ggf. welche Teile davon.

Feedback oder Fragen?Gerne an hoffstaetter@dzhw.eu

Im selben Projekt wurde auch ein Mustervertrag für die Datenaufnahme erarbeitet: https://doi.org/10.5281/zenodo.7648897
description: In Version 3.0.0 wurde insbesondere eine englische Übersetzung des Vertrages beigefügt. Siehe dazu auch das Änderungsprotokoll.
description: KonsortSWD wird Rahmen der NFDI gefördert durch die Deutsche Forschungsgemeinschaft (DFG) - Projektnummer: 442494171
A General Relativistic study of the neutrino path and calculation of minimum photosphere for different stars
Creators: name: Mallick, Ritam
name: Majumder, Sarbani
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A detailed general relativistic (GR) calculation of the neutrino path for a general metric describing a rotating star is studied. We have calculated the neutrino path along a plane, with the consideration that the neutrino does not at any time leave the plane. The expression for the minimum photosphere radius (MPR) is obtained and matched with the Schwarzschild limit. The MPR is calculated for the stars with two different equations of state (EOS) each rotating with two different velocities. The results shows that the MPR for the hadronic star is much greater than the quark star and the MPR increases as the rotational velocity of the star decreases. The MPR along the polar plane is larger than that along the equatorial plane.
description: 13 pages, 5 figures and 1 table
Constraint on the equation of state parameter ($ω$) in non-minimally coupled $f(Q)$ gravity
Creators: name: Mandal, Sanjay
name: Sahoo, P. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study observational constraints on the modified symmetric teleparallel gravity, the non-metricity $f(Q)$ gravity, which reproduces background expansion of the universe. For this purpose, we use Hubble measurements, Baryonic Acoustic Oscillations (BAO), 1048 Pantheon supernovae type Ia data sample which integrate SuperNova Legacy Survey (SNLS), Sloan Digital Sky Survey (SDSS), Hubble Space Telescope (HST) survey, Panoramic Survey Telescope and Rapid Response System (Pan-STARRS1). We confront our cosmological model against observational samples to set constraints on the parameters using Markov Chain Monte Carlo (MCMC) methods. We find the equation of state parameter $ω=-0.853^{+0.015}_{-0.020}$ and $ω= -0.796^{+0.049}_{-0.074}$ for Hubble and Pantheon samples, respectively. As a result, the $f(Q)$ model shows the quintessence behavior and deviates from $Λ$CDM.
description: PLB published version
POLICY CHANGE AND IMPLEMENTATION REGIMES: LESSONS FROM THE IMPLEMENTATION OF LAND POLICY CHANGE AT THE SUB NATIONAL LEVEL IN NIGERIA
Creators: name: ABUBAKAR, MOHAMMED BASHIR
Publisher: name: Universit� degli Studi di Milano
Year: 2019

description: ABSTRACT The aim of this research project is an inquiry into the intersection between institutional design of policies and organizational behavior on policy outcomes. Specifically, it is a comparative case study that seeks to examine the different implementation styles adopted by some Nigerian states in the reforms on land property rights. The reforms as gauged by the World Bank?s Ease of Doing Business index shows that the outcomes were mixed; while they were considered a success in some states, in others they were seen as failed reforms. Thus, the research question the project seeks to answer is: How do some states succeed in implementing and sustaining a policy change, while others are less able to do so? The study focuses on the different institutional designs as well as implementation styles adopted by some selected Nigerian states which resulted in varying degrees of success. This differential outcomes according to theories on delegation, implementation and policy regimes arises from the interplay of the contents of different sets of procedural prescriptions: on the one side, the mandate to decide, which establishes boundaries, conditions and aims of an agency?s legitimate discretion in policy implementation; and on the other, the obligations to account, which enforce, relax or restrict such latitude. Therefore, the project seeks to further the applicability of these frameworks to weak institutional contexts by exploring variations in the institutional designs of policy delegation and implementation across some selected states in Nigeria. A triangulation strategy was employed to collect data in three (3) states of Nigeria, using both primary sources (structured interviews) as well secondary sources (policy documents, administrative manuals and procedures, legislation, reports, minutes of meetings, public hearings, executive directives, and organizational organograms). The collected data was qualitatively coded and analyzed.
Effect of turbulence, light and turbidity on the standard BOD test
Creators: name: Morissette, Denis G.
Publisher: name: University of British Columbia
Year: 2010

description: The currently used BOD test attempts to predict oxygen level depletion in a given environment, e.g. a moving stream, and is also a parameter for the design and operation of biological processes. It is run under conditions similar to those occurring in nature, but it has been reported that the oxidation rate in a stream is higher than the corresponding rate obtained from the laboratory BOD test. This study was undertaken to observe the effect of turbulence, light and turbidity, separately and in combinations, on the standard BOD test, using raw sewage samples. Mixing was found to increase the BOD, by an average of 15$. reduce the lag period and increase the ultimate BOD value. Light did not show any appreciable change on the standard BOD test, since only an average 4% increase in BOD^ was found. However, turbidity demonstrated an average reduction of 25% on BOD,, values. When the above physical changes were observed in combinations, the results were not additive. As an example, light and turbidity, in combination, did not reduce the BOD,-decrease to 21% (25%-k%). Instead, the decrease in BOD^ value was 5%. This clearly points out that physical changes to the BOD test should not only be studied separately, but also in combinations. Therefore, this study appears to expose the inade quacy of the present BOD test for actual stream conditions. It has also shown that without further research, extrapolating from the existing standard BOD test,yields questionable results. Inclusion in the BOD test, of the physical characteristics of the stream, is a possible solution to obtaining reliable results.
Search for High Frequency Gravitational Wave Bursts in the First Calendar Year of LIGO's Fifth Science Run
Creators: name: LIGO Scientific Collaboration
name: Abbott, B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present an all-sky search for gravitational waves in the frequency range 1 to 6 kHz during the first calendar year of LIGO's fifth science run. This is the first untriggered LIGO burst analysis to be conducted above 3 kHz. We discuss the unique properties of interferometric data in this regime. 161.3 days of triple-coincident data were analyzed. No gravitational events above threshold were observed and a frequentist upper limit of 5.4 events per year on the rate of strong gravitational wave bursts was placed at a 90% confidence level. Implications for specific theoretical models of gravitational wave emission are also discussed.
description: 13 pages, accepted for publication in Physical Review D
DIFFRACTION STUDIES ON STRONGLY CORRELATED PEROVSKITE OXIDES
Creators: name: ALLIETA, MATTIA
Publisher: name: Universit� degli Studi di Milano
Year: 2012

description: In recent years, a great interest has been devoted to the so called strongly correlated systems containing perovskite building blocks. These systems exhibit a complex interplay between charge, spin, orbital and lattice degrees of freedom paving the way for very attractive applications. In this work, entitled ?Diffraction Studies on Strongly Correlated Perovskite Oxides? the use of x-ray diffraction techniques to investigate the coupling between the structure and the physical properties of several bulk material based on perovskite structure is presented. The thesis is organized in five chapters. Introduction presents a very general overview on strongly correlated perovskite oxides and the scope of the thesis. The first chapter reports technical details of the diffraction techniques involved in all the structural studies performed during the PhD. Chapter 2 reports an accurate investigation performed on the magnetoresistive cobaltite GdBaCo2O5+d (d=0) using single-crystal and synchrotron powder X-ray diffraction. In this work, we assign the correct space group and we demonstrate that a very small tetragonal-to-orthorhombic lattice distortion is coupled to magnetic phase transition. In Chapter 3, we show the study of the temperature induced insulator-to-metal transition for GdBaCo2O5+d (d>0.5). By using a combined approach between electron paramagnetic resonance and powder diffraction techniques we provide new interesting features about the spin ? lattice interaction occurring in these systems. Chapter 4 presents synchrotron X-ray powder diffraction study on EuTiO3 system. We show for the first time the existence of a new structural phase transition occurring in EuTiO3 below room temperature. In addition, by performing the atomic pair distribution function analysis of the powder diffraction data, we provide evidence of a mismatch between the local (short-range) and the average crystallographic structures in this material and we propose that the lattice disorder is of fundamental importance to understand the EuTiO3 properties. Finally, beyond the scope of the thesis, in Chapter 5, we review the basic procedure to get the differential pair distribution function obtained by applying the anomalous X-ray diffraction technique to total X- ray scattering method. We show an example of the application of this procedure by presenting the case of gadolinium doped ceria electrolytes. This work will show that use of the powder diffraction techniques provides a powerful tool to unveil the coupling between the structure and the physical properties in strongly correlated perovskite oxides.
Mustervertrag Datennutzung KonsortSWD
Creators: name: Schallaböck, Jan
name: Hoffstätter, Ute
name: Buck, Daniel
name: Linne, Monika
Publisher: name: Zenodo
Year: 2022

description: Dieser Musterdatennutzungsvertrag wurde 2021 im Rahmen von KonsortSWD erarbeitet. Basis waren Datennutzungsverträge von Forschungsdatenzentren (FDZ), die durch den RatSWD akkreditiert sind. Auf freiwilliger Basis stellten 20 FDZ ihre Datennutzungsverträge für die Konzeption eines harmonisierten Vertrags zur Verfügung. Darauf aufbauend wurde unter Expertise der Kanzlei iRights.law ein Vertrag für die Datenbereitstellung – auch personenbezogener Daten – im In- und Ausland unter Berücksichtigung der DSGVO erarbeitet. Die Veröffentlichung beinhaltet: Datennutzungsvertrag inkl. Anhänge sowie drei Vertragserweiterungen Erläuterungen zum Datennutzungsvertrag sowie die Beantwortung rechtlicher Fragen Wichtig: Wir freuen uns sehr, wenn Sie den Musterdatennutzungsvertrag nutzen möchten. Bitte beachten Sie dabei die beigefügten Erläuterungen. Wenn beabsichtigt wird, den Musterdatennutzungsvertrag oder Teile davon zu nutzen, muss dies per E-Mail gemeldet werden an hoffstaetter@dzhw.eu. Dies hat den Zweck, die Nutzung, Einsatzgebiete und Praxiserfahrungen zu tracken und Feedback einzuholen. Feedback oder Fragen?
 Gerne an hoffstaetter@dzhw.eu Im selben Projekt wurde auch ein Mustervertrag für die Datenaufnahme erarbeitet: https://doi.org/10.5281/zenodo.7648897
description: KonsortSWD wird Rahmen der NFDI gefördert durch die Deutsche Forschungsgemeinschaft (DFG) - Projektnummer: 442494171
GENETIC DISSECTION OF SEED DEVELOPMENT IN MAIZE
Creators: name: SANGIORGIO, STEFANO
Publisher: name: Universit� degli Studi di Milano
Year: 2013

description: One of the most interesting aspects, that is still poorly characterized from the genetic point of view, of the development of the higher plants is the formation of the seed. A better knowledge of the steps and of the genes involved in the development of the seed and the seedling is achieved with the isolation, in model species, of mutants impaired in the formation of the two compartments of the seed: the embryo and the endosperm. The choice of maize is due to the fact that it?s one of the model species most utilized to study the role of the genes in biosynthetic pathways and plant morphogenetics: thanks to its dimensions, the practices of dissection are easier, and thanks to the abundance of tissues in the embryo, leaves and ear, great quantities of material are available for biochemical and molecular analyses. Two features of maize plant helped largely genetic studies: the ear size and the development of separated male and female inflorescence. A normal plant can produce about 4-700 seeds. The plants that sprout from them can easily be crossed or selfed producing a wide progeny particularly useful in genetic studies. This progeny can be obtained in a relative short period, between 100 and 150 days from the sowing. Moreover the localization of male flowers in the tassel and female flowers in the ear allow to avoid pollutions with undesirable pollen, simply hooding the ear without emasculation. In this thesis several works are summarized regarding the study of several classes of mutants of different origin affecting either the seed or the plant development. Moreover the study of the interaction between two different insect pests and different maize genetic variants is presented: the results obtained will provide useful information for the selection of genotypes resistant to the attack from insect pests of stored products.
Theory of vortex structure in Josephson junctions with multiple tunneling channels: Vortex enlargement as a probe of $\pm s$-wave superconductivity
Creators: name: Ota, Yukihiro
name: Machida, Masahiko
name: Koyama, Tomio
name: Matsumoto, Hideki
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We theoretically study Josephson vortex structures in Josephson junctions which have multiple tunneling channels caused by multiple superconducting gaps. Deriving "coupled sine-Gordon equations" from the free-energy taking account of the multiple tunneling channels, we examine two typical situations, a heterotic junction composed of multigap-superconductor, insulator, and single-gap superconductor, and a grain-boundary junction formed by two identical multigap superconductors. Then, we reveal in both situations that the magnetic field distribution of the Josephson vortex for $\pm s$-wave superconductivity is more enlarged than that for s-wave without sign change between the order parameters. Its mechanism is ascribed to a cancellation of the multiple Josephson currents. We display such an anomalous Josephson vortex and suggest how to evaluate the enlargement.
IDENTIFICATION AND FUNCTIONAL CHARACTERIZATION OF GENES CONTROLLING REPRODUCTIVE MERISTEMS DEVELOPMENT IN THE MODEL SPECIES RICE (ORYZA SAT/VA)
Creators: name: UD DIN, ISRAR
Publisher: name: Universit� degli Studi di Milano
Year: 2017

description: Meristems are groups of pluripotent cells that contribute to plant growth and the development of its organs. In rice the inflorescence architecture, which determines the grain yield is established at early stages of reproductive development. Activity of the different types of reproductive meristem and the timing of transition between them shape the branching pattern and the number of spikelets on the inflorescence. A few genes that specify the identity of these meristems and regulate the transitions have been reported but the molecular mechanisms, underlying this process are still not clear. To gain a better understanding we used a precise laser microdissection and RNA-sequencing approach in Oryza sativa ssp. japonica cv. Nipponbare to elucidate the landscape of gene expression in four reproductive meristem types: the rachis meristem (RM), the primary branch meristem (PBM), the elongating primary branch meristem (including axillary meristems) (ePBM/AM), and the spikelet meristem (SM). We found that genes could be grouped based on specific expression behavior in these meristem types. The bioinformatics analysis of the datasets resulted in the identification of several genes potentially involved in branching. We generated loss of function mutants using a genome editing CRISPR/Cas9 approach, for two promising candidate genes, namely G1L1 and G1L2, both belonging to the ALOG family encoding a conserved domain: ?Domain of Unknown Function 640? (DUF640). The knock-outs revealed an interesting branching phenotype that is consistent with the expression profile of these genes. Future research of our datasets combined with mutant analysis are expected to provide important new insights into the molecular mechanism that control rice inflorescence development, which has as an ultimate scope the improvement of grain yield, a trait that has without any doubt top priority for a sustainable agriculture of the future.
Fake Dark Matter at Colliders
Creators: name: Chang, Spencer
name: de Gouvea, Andre
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: If the dark matter (DM) consists of a weakly interacting massive particle (WIMP), it can be produced and studied at future collider experiments like those at the LHC. The production of collider-stable WIMPs is characterized by hard scattering events with large missing transverse energy. Here we point out that the discovery of this well-characterized DM signal may turn out to be a red herring. We explore an alternative explanation -- fake dark matter -- where the only sources of missing transverse energy are standard model neutrinos. We present examples of such models, focusing on supersymmetric models with R-parity violation. We also briefly discuss means of differentiating fake dark matter from the production of new collider-stable particles.
description: 11 pages, 3 figures, revtex; references added
สารผลิตภัณฑ์ธรรมชาติจากทะเลที่มีศักยภาพเป็นยาใหม่
Creators: name: ชุติมา ลิ้มมัทวาภิรัติ์
Publisher: name: คณะเภสัชศาสตร์/สำนักพิมพ์ต้นตำรับ
Year: 2545
Subjects: สารผลิตภัณฑ์ธรรมชาติจากทะเล, ฤทธิ์ต้านแบคทีเรีย,ฤทธิ์ต้านเชื้อรา, ฤทธิ์ต้านไวรัส,ฤทธิ์ต้านอักเสบ,ฤทธิ์ต้านมาลาเรีย,ฤทธิ์ต้านวัณโรค,ฤทธิ์ต้านออกซิแดนท์,ฤทธิ์ต้านมะเร็ง

description: 1 (May-Sep), 1, ไทยไภษัชยนิพนธ์
Mustervertrag Datennutzung KonsortSWD
Creators: name: Schallaböck, Jan
name: Hoffstätter, Ute
name: Buck, Daniel
name: Linne, Monika
Publisher: name: Zenodo
Year: 2023

description: Dieser Musterdatennutzungsvertrag wurde 2021 im Rahmen von KonsortSWD erarbeitet. Ein Update wurde 2023 veröffentlicht. Basis waren Datennutzungsverträge von Forschungsdatenzentren (FDZ), die durch den RatSWD akkreditiert sind. Auf freiwilliger Basis stellten 20 FDZ ihre Datennutzungsverträge für die Konzeption eines harmonisierten Vertrags zur Verfügung. Darauf aufbauend wurde unter Expertise der Kanzlei iRights.law ein Vertrag für die Datenbereitstellung – auch personenbezogener Daten – im In- und Ausland unter Berücksichtigung der DSGVO erarbeitet. Die Veröffentlichung beinhaltet: Datennutzungsvertrag inkl. Anhänge sowie drei Vertragserweiterungen (mit und ohne Nachverfolgung der Änderungen) Erläuterungen zum Datennutzungsvertrag sowie die Beantwortung rechtlicher Fragen Änderungsprotokoll zur Nachverfolgung der Änderungen zwischen den Versionen Wichtig: Wir freuen uns sehr, wenn Sie den Mustervertrag nutzen möchten. Bitte beachten Sie dabei die beigefügten Erläuterungen. Sie können den gesamten Vertrag oder Teile davon frei nutzen. Dennoch freuen wir uns sehr über eine kurze Nachricht, dass Sie den Vertrag nutzen und ggf. welche Teile davon. Feedback oder Fragen?
 Gerne an hoffstaetter@dzhw.eu Im selben Projekt wurde auch ein Mustervertrag für die Datenaufnahme erarbeitet: https://doi.org/10.5281/zenodo.7648897
description: KonsortSWD wird Rahmen der NFDI gefördert durch die Deutsche Forschungsgemeinschaft (DFG) - Projektnummer: 442494171
Liquid Xenon Detectors for Particle Physics and Astrophysics
Creators: name: Aprile, E.
name: Doke, T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This article reviews the progress made over the last 20 years in the development and applications of liquid xenon detectors in particle physics, astrophysics and medical imaging experiments. We begin with a summary of the fundamental properties of liquid xenon as radiation detection medium, in light of the most current theoretical and experimental information. After a brief introduction of the different type of liquid xenon detectors, we continue with a review of past, current and future experiments using liquid xenon to search for rare processes and to image radiation in space and in medicine. We will introduce each application with a brief survey of the underlying scientific motivation and experimental requirements, before reviewing the basic characteristics and expected performance of each experiment. Within this decade it appears likely that large volume liquid xenon detectors operated in different modes will contribute to answering some of the most fundamental questions in particle physics, astrophysics and cosmology, fulfilling the most demanding detection challenges. From experiments like MEG, currently the largest liquid xenon scintillation detector in operation, dedicated to the rare mu -> e + gamma decay, to the future XMASS which also exploits only liquid xenon scintillation to address an ambitious program of rare event searches, to the class of time projection chambers like XENON and EXO which exploit both scintillation and ionization of liquid xenon for dark matter and neutrinoless double beta decay, respectively, we anticipate unrivaled performance and important contributions to physics in the next few years.
description: 47 pages, 87 figures