cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MODELING PERENNIAL CROP SUPPLY: AN ILLUSTRATION FROM THE PECAN INDUSTRY
Creators: name: Elnagheeb, Abdelmoneim H.
name: Florkowski, Wojciech J.
name: Elnagheeb, Abdelmoneim H.
name: Florkowski, Wojciech J.
Publisher: name: Unknown
Year: 1993
Subjects: subject: Demand and Price Analysis
subject: Non-bearing trees
subject: Pecans
subject: Tree crop
subject: Tree yields
subject: Volume produced

description: Two methodological approaches were applied to estimating the number of non-bearing trees in the absence of such date using data for the Southern USA pecan industry. The first approach distinguished between bearing and non-bearing phases of a tree life and directly estimated the number of non-bearing trees. The second focused on indirect estimating of the non-bearing tree number from changes in production. This approach relaxed the assumption of maintaining maximum yields for infinite period as used in earlier studies. Empirical applications used two data sets from the pecan industry. The comparison of empirical results suggested that the first method was more accurate than the alternative approach in predicting the number of newly planted trees over an extended period of time. Additional data collection will allow for further application of available methodology to the pecan industry.
Nucleon QCD sum rules with the radiative corrections
Creators: name: Sadovnikova, V. A.
name: Drukarev, E. G.
name: Ryskin, M. G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: QCD sum rules for the nucleon are considered in complex q^2 plane with inclusion of the radiative corrections of the order alpha_s. It is shown that the radiative corrections affect mainly the residue lambda^2 of the nucleon pole. Their influence on the value of the nucleon mass is much smaller. Following the ideas of Ioffe and Zyablyuk we expand the analysis to complex values of q^2. This provides a more stable solution. Varying the weights of the contributions of different dimensions by changing the value of the angle in the complex plane we find the value of the six-quark condensate which insures the best consistency of the right hand sides and left hand sides of the sum rules. The corresponding value of the six-quark condensate appears to be only about 10% smaller then the one, provided by the factorization approximation. The value of the four-quark condensate also appears to be close to the one, corresponding to the factorization assumption. The role of the gluon condensate and its possible values are discussed.
description: 25 pages, 8 figures, this version is identical to the journal paper
Faecal Sample Examination techniques: Qualitative methods
Creators: name: Subhradal Nath*, Giridhari Das, Suman Kumar, Rupesh Verma, and Sanju Mandal
Publisher: name: The Science world a Monthly e magazine
Year: 2024

description: Clinician and technicians usually do not have the opportunity to collect faecal samples and must rely on samples brought in by clients. Regardless of how they are obtained, it is important to have fresh faeces with which to work. The need for fresh faeces seems to prevent from rapid development and changes that occur in some common parasite eggs once they are passed from the patient, as well as the death of some protozoa that can be recognized by their movement. If fresh faeces cannot be obtained, it is advisable to refrigerate the sample (not more than 24 hours). If the diagnostic center is not near the specimens should be preserved in 70% alcohol or 10% formalin and transported to the diagnostic center.
Biodegradable Prussian blue nanoparticles for photothermal immunotherapy of advanced cancers
Creators: name: Cano-Mejia, Juliana
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Biomedical engineering
subject: Nanotechnology
subject: FOS: Nanotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: anti-CTLA-4
subject: cancer
subject: photothermal immunotherapy
subject: Prussian blue nanoparticles

description: Multifunctional nanoparticles represent a class of materials with diverse therapy and imaging properties that can be exploited for the treatment of cancers that have significantly progressed or advanced, which are associated with a poor patient prognosis. Here, we describe the use of biodegradable Prussian blue nanoparticles (PBNPs) in combination with anti-CTLA-4 checkpoint blockade immunotherapy for the treatment of advanced cancers.  Our nanoparticle synthesis scheme yields PBNPs that possess pH-dependent intratumoral stability and photothermal therapy (PTT) properties, and degrade under mildly alkaline conditions mimicking the blood and lymph. Studies using PBNPs for PTT in a mouse model of neuroblastoma, a hard-to-treat cancer, demonstrate that PTT causes rapid reduction of tumor burden and growth rates, but results in incomplete responses to therapy and tumor relapse. Studies to elucidate the underlying immunological responses demonstrate that PTT causes increased tumor infiltration of lymphocytes and T cells and a systemic activation of T cells against re-exposed tumor cells in a subset of treated mice. PBNP-based PTT in combination with anti-CTLA-4 immunotherapy results in complete tumor regression and long-term survival in 55.5% of neuroblastoma tumor-bearing mice compared to only 12.5% survival in mice treated with anti-CTLA-4 alone and 0% survival both in mice treated with PTT alone, or remaining untreated. Further, all of the combination therapy-treated mice exhibit protection against tumor rechallenge indicating the development of antitumor immunity as a consequence of therapy. Our studies indicate the immense potential of our combination photothermal immunotherapy in improving the prognosis and outlook for patients with advanced cancers.
The mid- and far-infrared colours of AGB and post-AGB stars
Creators: name: Groenewegen, M. A. T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: With the advent of space missions, like SPITZER and ASTRO-F, with sensitive detectors in the near- and mid-infra red covering a reasonable field-of-view and having a good spatial resolution, it will be possible to detect individual AGB stars in Local Group galaxies. The filters used by these missions are non-standard and different from mission to mission. In this paper, the colours of mass-losing AGB and post-AGB stars are calculated in the broad-band filters of the SPITZER and ASTRO-F missions, as well as Bessell V,I and 2MASS J,H,K to connect these results to existing ground-based data. The models are calculated for carbon- and oxygen-rich chemistry and cover different effective temperatures and dust compositions.
description: A&A, accepted: 27 October 2005
Two predictive supersymmetric S3 x Z2 models for the quark mass matrices
Creators: name: Lavoura, Luis
name: Ma, Ernest
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose two simple models for the quark mass matrices which may be implemented through an S3 x Z2 symmetry in a supersymmetric context. Each model has eight parameters and, therefore, makes two independent predictions for the quark mixing matrix. The first model predicts |Vub / Vcb| approx sqrt{m_u / m_c} sim 0.06 and |Vtd / Vts| approx sqrt{m_d / m_s} sim 0.23. The second model, in which the forms of the up-type-quark and down-type-quark mass matrices are interchanged relative to the first one, predicts |Vub / Vcb| sim 0.11 and |Vtd / Vts| sim 0.33. Both models have sin(2 beta) sim 0.5.
description: 10 pages latex, no figures, no tables
Full $fp$-shell study of even-even $^{48-56}$Ti isotopes
Creators: name: Majeed, F. A.
name: Auda, A. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The level schemes and transition rates {\em B}({\em E}2;$\uparrow$) of eve-even $^{48-56}$Ti isotopes were studied by performing large-scale shell model calculations with FPD6 and GXPF1 effective interactions. Excellent agreement were obtained by comparing the first 2$^{+}$ level for all isotopes with the recently available experimental data, but studying the transition strengths {\em B}({\em E}2; 0$^+_{g.s.} \to2^+_1$) for all Ti isotopes using constant proton-neutron effective charges prove the limitations of the present large-scale calculations to reproduce the experiment in detail.
description: 4 pages, 4 figures
title: Planning for sustainable seaweed aquaculture on the east coast of Central Vancouver Island
Creators: name: Foulkes, Sarah Elizabeth
Publisher: name: Electronic version published by Vancouver Island University
Year: 2022
Subjects: subject: Marine algae as food--British Columbia--Vancouver Island
subject: Food supply--British Columbia--Vancouver Island

description: Vancouver Island’s food system has low resiliency, which means that it cannot quickly adapt to external shocks and stresses. The result of this low resiliency is that the communities on the Island are left vulnerable to food shortages in times of crisis. Increasing the amount of food produced by Vancouver Island communities can help improve the food system resiliency. One crop which would be beneficial for communities to produce is seaweed, and Vancouver Island has been identified as the ideal place for BC to establish a thriving seaweed aquaculture industry. Worldwide studies indicate that introducing seaweed aquaculture to a community can provide numerous economic, environmental, and food security benefits. Planners can support the growth of this new industry by developing zoning bylaws that allow for the cultivation and processing of seaweed, creating official community plans that support the expansion of the industry, helping to preserve valuable aquaculture infrastructure, and raising awareness of the industry amongst the community members.
title: Σχεδίαση συστήματος σταθμού έγκαιρης προειδοποίησης με χρήση μηχανικής όρασης και αυτόνομης πλοήγησης UV
title: Design and implementation of a unified surveillance system with computer vision, icluding a surveillance station and an autonomous UV
titleType: AlternativeTitle
Creators: name: Καρανάτσιος, Δημήτριος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2023
Subjects: Μηχανική μάθηση
Python
Android
TensorFlow
Tkinter
OpenCV
Raspberry Pi
Γραφικό περιβάλλον
Σταθμός παρατήρησης
Λογισμικό

description: Στην συγκεκριμένη διπλωματική εργασία, παρουσιάζεται ένα μοντέλο ενοποιημένου συστήματος σταθμού έγκαιρης προειδοποίησης – μη επανδρωμένου οχήματος. Βασικό χαρακτηριστικό του συστήματος αυτού, αποτελεί η χρήση μηχανικής όρασης για τον εντοπισμό των αντικειμένων – στόχων. Για την πληρέστερη παρουσίαση των δυνατοτήτων του συστήματος, η ανάπτυξή του έχει γίνει σε μορφή σταθερού και κινητού σταθμού. Αρχικά, γίνεται μια θεωρητική παρουσίαση και ανάλυση του τομέα της μηχανικής μάθησης καθώς και των βασικών μοντέλων και εργαλείων που χρησιμοποιήθηκαν. Ακολουθεί η ανάλυση λειτουργίας του συστήματος και του υλικού που χρησιμοποιήθηκε για τον σταθμό αναγνώρισης αλλά και την εξομοίωση των βασικών λειτουργιών του μη επανδρωμένου συστήματος. Τέλος, ακολουθεί η αναλυτική παρουσίαση των μορφών μηχανικής όρασης που αναπτύχθηκαν, οι οποίες καταδεικνύουν τις δυνατότητες του συστήματος, αλλά και τα πεδία πολιτικών και στρατιωτικών εφαρμογών τους.
Circumstellar Na I and Ca II lines of type Ia supernovae in symbiotic scenario
Creators: name: Chugai, N. N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Formation of circumstellar lines of Na I and Ca II in type Ia supernovae is studied for the case, when supernova explodes in a binary system with a red giant. The model suggests a spherically-symmetric wind and takes into account ionization and heating of the wind by X-rays from the shock wave and by gamma-quanta of ^{56}Ni radioactive decay. For the wind density typical of the red giant the expected optical depth of the wind in Na I lines turnes out too low (τ<0.001}) to detect the absorption. For the same wind densities the predicted optical depth of Ca II 3934 Åis sufficient for the detection (τ>0.1). I conclude that the absorption lines detected in SN 2006X cannot form in the red giant wind; they are rather related to clouds at distances larger than the dust evaporation radius (r>10^{17} cm). From the absence in SN 2006X of Ca II absorption lines not related with the similar Na I components I derive the upper limit of the mass loss rate by the wind with velocity u: \dot{M}<10^{-8}(u/10 km/s) M_{\odot} yr^{-1}.
description: 10 pages, 6 figures, Astronomy Letters (accepted)
Relativistic Freeze-in with Scalar Dark Matter in a Gauged $B-L$ Model and Electroweak Symmetry Breaking
Creators: name: Bandyopadhyay, Priyotosh
name: Mitra, Manimala
name: Roy, Abhishek
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We explore relativistic freeze-in production of scalar dark matter in gauged $B-L$ model, where we focus on the production of dark matter from the decay and annihilation of Standard Model (SM) and $B-L$ Higgs bosons. We consider the Bose-Einstein (BE) and Fermi-Dirac (FD) statistics, along with the thermal mass correction of the SM Higgs boson in our analysis. We show that in addition to the SM Higgs boson, the annihilation and decay of the $B-L$ scalar can also contribute substantially to the dark matter relic density. Potential effects of electroweak symmetry breaking (EWSB) and thermal mass correction in BE framework enhance the dark matter relic substantially as it freezes-in near EWSB temperature via scalar annihilation. However, such effects are not so prominent when the dark matter freezes-in at a later epoch than EWSB, dominantly by decay of scalars. The results of this analysis are rather generic, and applicable to other similar scenarios.
description: 32 pages, 21 figures, 6 tables, Published as JHEP05(2021)150
Fractalizing quantum codes
Creators: name: Devakul, Trithep
name: Williamson, Dominic J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We introduce "fractalization", a procedure by which spin models are extended to higher-dimensional "fractal" spin models. This allows us to interpret type-II fracton phases, fractal symmetry-protected topological phases, and more, in terms of well understood lower-dimensional spin models. Fractalization is also useful for deriving new spin models and quantum codes from known ones. We construct higher dimensional generalizations of fracton models that host extended fractal excitations. Finally, by applying fractalization to a 2D subsystem code, we produce a family of locally generated 3D subsystem codes that are conjectured to saturate a quantum information storage tradeoff bound.
description: 17 pages
Confining the Electroweak Model to a Brane
Creators: name: Palma, Gonzalo A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We introduce a simple scenario where, by starting with a five-dimensional SU(3) gauge theory, we end up with several 4-D parallel branes with localized fermions and gauge fields. Similar to the split fermion scenario, the confinement of fermions is generated by the nontrivial topological solution of a SU(3) scalar field. The 4-D fermions are found to be chiral, and to have interesting properties coming from their 5-D group representation structure. The gauge fields, on the other hand, are localized by loop corrections taking place at the branes produced by the fermions. We show that these two confining mechanisms can be put together to reproduce the basic structure of the electroweak model for both leptons and quarks. A few important results are: Gauge and Higgs fields are unified at the 5-D level; and new fields are predicted: One left-handed neutrino with zero-hypercharge, and one massive vector field coupling together the new neutrino with other left-handed leptons. The hierarchy problem is also addressed.
description: 9 pages, 8 figures; references added; version published in PRD
Spread-out percolation in R^d
Creators: name: Bollobas, Bela
name: Janson, Svante
name: Riordan, Oliver
Publisher: name: arXiv
Year: 2005
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K35; 05C80

description: Let $X$ be either $Z^d$ or the points of a Poisson process in $R^d$ of intensity 1. Given parameters $r$ and $p$, join each pair of points of $X$ within distance $r$ independently with probability $p$. This is the simplest case of a `spread-out' percolation model studied by Penrose, who showed that, as $r\to\infty$, the average degree of the corresponding random graph at the percolation threshold tends to 1, i.e., the percolation threshold and the threshold for criticality of the naturally associated branching process approach one another. Here we show that this result follows immediately from of a general result of the authors on inhomogeneous random graphs.
description: 9 pages. Title changed. Minor changes to text, including updated references to [3]. To appear in Random Structures and Algorithms
Synthetic gamma-ray lightcurves of Kerr black-hole magnetospheric activity from particle-in-cell simulations
Creators: name: Crinquand, Benjamin
name: Cerutti, Benoît
name: Dubus, Guillaume
name: Parfrey, Kyle
name: Philippov, Alexander
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Context: The origin of ultra-rapid flares of very high-energy radiation from active galactic nuclei remains elusive. Magnetospheric processes, occurring in the close vicinity of the central black hole, could account for these flares. Aims: We aim to bridge the gap between simulations and observations by synthesizing gamma-ray lightcurves in order to characterize the activity of a black-hole magnetosphere, using kinetic simulations. Methods: We perform global axisymmetric two-dimensional general-relativistic particle-in-cell simulations of a Kerr black-hole magnetosphere. We include a self-consistent treatment of radiative processes and plasma supply, as well as a realistic magnetic configuration, with a large-scale equatorial current sheet. We couple our particle-in-cell code with a ray-tracing algorithm, in order to produce synthetic lightcurves. Results: These simulations show a highly dynamic magnetosphere, as well as very efficient dissipation of the magnetic energy. An external supply of magnetic flux is found to maintain the magnetosphere in a dynamic state, otherwise the magnetosphere settles in a quasi-steady Wald-like configuration. The dissipated energy is mostly converted to gamma-ray photons. The lightcurves at low viewing angle (face-on) mainly trace the spark gap activity and exhibit high variability. On the other hand, no significant variability is found at high viewing angle (edge-on), where the main contribution comes from the reconnecting current sheet. Conclusions: We observe that black-hole magnetospheres with a current sheet are characterized by a very high radiative efficiency. The typical amplitude of the flares in our simulations is lower than what is detected in active galactic nuclei. Such flares could result from the variation of parameters external to the black hole
description: 12 pages, 10 figures. Accepted in Astronomy and Astrophysics
Whitham modulation theory for generalized Whitham equations and a general criterion for modulational instability
Creators: name: Binswanger, Adam L.
name: Hoefer, Mark A.
name: Ilan, Boaz
name: Sprenger, Patrick
Publisher: name: arXiv
Year: 2020
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The Whitham equation was proposed as a model for surface water waves that combines the quadratic flux nonlinearity $f(u) = \tfrac{1}{2}u^2$ of the Korteweg-de Vries equation and the full linear dispersion relation $Ω(k) = \sqrt{k\tanh k}$ of uni-directional gravity water waves in suitably scaled variables. This paper proposes and analyzes a generalization of Whitham's model to unidirectional nonlinear wave equations consisting of a general nonlinear flux function $f(u)$ and a general linear dispersion relation $Ω(k)$. Assuming the existence of periodic traveling wave solutions to this generalized Whitham equation, their slow modulations are studied in the context of Whitham modulation theory. A multiple scales calculation yields the modulation equations, a system of three conservation laws that describe the slow evolution of the periodic traveling wave's wavenumber, amplitude, and mean. In the weakly nonlinear limit, explicit, simple criteria in terms of general $f(u)$ and $Ω(k)$ establishing the strict hyperbolicity and genuine nonlinearity of the modulation equations are determined. This result is interpreted as a generalized Lighthill-Whitham criterion for modulational instability.
description: 28 pages, 5 figures
Recordings year 6
Creators: name: Ríos Díaz, Trujillo
name: Skilton, Amalia Horan
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2016
Subjects: subject: ore
subject: Máíhĩ̵̀kì language

description: Trujillo Ríos Díaz is also known as Trujillo Ríos Ruiz and Trujillo Ríos Sánchez
MULTI-CRITERIA VEGETATION SELECTION FOR MARYLAND BIORETENTION, WITH NITROGEN FOCUS
Creators: name: Muerdter, Claire
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Environmental engineering
subject: FOS: Environmental engineering
subject: Civil engineering
subject: FOS: Civil engineering
subject: Botany
subject: Bioretention
subject: Eutrochium dubium
subject: Juncus effusus
subject: Maryland
subject: Nitrogen
subject: Vegetation

description: Stormwater is a leading source of nutrient pollution in natural waters. Bioretention cells can mitigate stormwater pollution. This study examines the role of vegetation in bioretention. In a bioretention field study; of Eutrochium dubium, Solidago rugosa, and Erigeron sp.; E. dubium had the thickest root and tallest aboveground biomass. The root length of the three species averaged 29.1 cm. A greenhouse bioretention mesocosm study examined three plant species: Eutrochium dubium, Iris versicolor, and Juncus effusus. Only J. effusus created significant nitrate (NO3-) removal from synthetic stormwater influent, 0.21 mg to 0.066 mg NO3--N L-1, only in low-density plantings. However, all planted treatments prevented nitrogen export vis-à-vis the unplanted treatment in two storms. J. effusus had the greatest average biomass growth of the three species, 29-fold vis-à-vis 1.3- and 2.7-fold. J. effusus is the most highly recommended plant for Maryland bioretention in this study. E. dubium is cautiously recommended.
Source-level transformations for improved formal verification
Creators: name: Winters, Brian D.
Publisher: name: University of British Columbia
Year: 2009

description: A major obstacle to widespread acceptance of formal verification is the difficulty in using the tools effectively. Although learning the basic syntax and operation of a formal verification tool may be easy, expert users are often able to accomplish a verification task while a novice user encounters time-out or space-out attempting the same task. In this thesis, we assert that often a novice user will model a system in a different manner — semantically equivalent, but less efficient for the verification tool — than an expert user would, that some of these inefficient modeling choices can be easily detected at the source-code level, and that a robust verification tool should identify these inefficiencies and optimize them, thereby helping to close the gap between novice and expert users. To test our hypothesis, we propose some possible optimizations for the Murφ verification system, implement one of these, and compare the results on a variety of examples written by both experts and novices (the Murφ distribution examples, a set of cache coherence protocol models, and a portion of the IEEE 1394 Firewire protocol). The results support our assertion — a nontrivial fraction of the Murφ models written by novice users were significantly accelerated by the single optimization. Our findings strongly support further research in this area.
Stress Response of Bovine Artery and Rat Brain Tissue due to Combined Translational Shear and Fixed Unconfined Compression Deformation
Creators: name: Leahy, Lauren
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Mechanical engineering
subject: FOS: Mechanical engineering
subject: Mechanics
subject: Materials Science
subject: aorta
subject: brain
subject: Frequency analysis
subject: Mullins effect
subject: Sinusoidal
subject: translational shear deformation

description: During trauma resulting from impacts and blast waves, sinusoidal waves

permeate the brain and cranial arterial tissue, both non-homogeneous biological tissues with high fluid contents. The experimental shear stress response to sinusoidal translational shear deformation at 1 Hz and 25% strain amplitude and either 0% or 33% compression is compared for rat brain tissue and bovine aortic tissue. Both tissues exhibit Mullins effect in shear. Harmonic wavelet decomposition, a novel application to the mechanical response of these tissues, shows significant 1 Hz and 3 Hz components. The 3 Hz component magnitude in brain tissue, which is much larger than in aortic tissue, may correlate to interstitial fluid induced drag forces that decrease on subsequent cycles perhaps because of damage resulting in easier fluid movement. The fluid may cause the quasiperiodic, viscoelastic behavior of brain tissue. The mechanical response differences under impact may cause shear damage between arterial and brain connections.
Brane Decay of a (4+n)-Dimensional Rotating Black Hole. II: spin-1 particles
Creators: name: Casals, M.
name: Kanti, P.
name: Winstanley, E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The present works complements and expands a previous one, focused on the emission of scalar fields by a (4+n)-dimensional rotating black hole on the brane, by studying the emission of gauge fields on the brane from a similar black hole. A comprehensive analysis of the particle, energy and angular momentum emission rates is undertaken, for arbitrary angular momentum of the black hole and dimensionality of spacetime. Our analysis reveals the existence of a number of distinct features associated with the emission of spin-1 fields from a rotating black hole on the brane, such as the behaviour and magnitude of the different emission rates, the angular distribution of particles and energy, the relative enhancement compared to the scalar fields, and the magnitude of the superradiance effect. Apart from their theoretical interest, these features can comprise clear signatures of the emission of Hawking radiation from a brane-world black hole during its spin-down phase upon successful detection of this effect during an experiment.
description: 35 pages, 19 figures, Latex file
The Emergence of Structure in the Binary Black Hole Mass Distribution
Creators: name: Tiwari, Vaibhav
name: Fairhurst, Stephen
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We use the gravitational wave signals from binary black hole merger events observed by LIGO and Virgo to reconstruct the underlying mass and spin distributions of the population of merging black holes. We reconstruct the population using the mixture model framework VAMANA (Tiwari 2020) using observations in GWTC-2 occurring during the first two observing runs and the first half of the third run (O1, O2, and O3a). Our analysis identifies a structure in the chirp mass distribution of the observed population. Specifically, we identify peaks in the chirp mass distribution at 8, 14, 26, and 45 M and a complementary structure in the component mass distribution with an excess of black holes at masses of 9, 16, 30 and 57 M_. Intriguingly, for both the distributions, the location of subsequent peaks are separated by a factor of around two and there is a lack of mergers with chirp masses of 10-12 M. The appearance of multiple peaks is a feature of a hierarchical merger scenario when, due to a gap in the black-hole mass spectrum, a pile-up occurs at the first peak followed by mergers of lower mass black-holes to hierarchically produce higher mass black-holes. However, cross-generation merger peaks and observations with high spins are also predicted to occur in such a scenario that we are not currently observing. The results presented are limited in measurement accuracy due to small numbers of observations but if corroborated by future gravitational wave observations these features have far-reaching implications.
Observations of the Cosmic Microwave Background and Galactic Foregrounds at 12-17 GHz with the COSMOSOMAS Experiment
Creators: name: Fernandez-Cerezo, S.
name: Gutierrez, C. M.
name: Rebolo, R.
name: Watson, R. A.
name: Hoyland, R. J.
name: Hildebrandt, S. R.
name: Rubino-Martin, J. A.
name: Macias-Perez, J. F.
name: Molina, P. Sosa
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) We present the analysis of the first 18 months of data obtained with the COSMOSOMAS experiment at the Teide Observatory (Tenerife). Three maps have been obtained at 12.7, 14.7 and 16.3 GHz covering 9000 square degrees each with a resolution of ~1 degree and with sensitivities 49, 59 and 115 muK per beam respectively. These data in conjuction with the WMAP first year maps have revealed that the Cosmic Microwave Background (CMB) is the dominant astronomical signal at high galatic latitude in the three COSMOSOMAS channels with an average amplitude of 29.7+/- 1.0 \muK (68% c.l. not including calibration errors). This value is in agreement with the predicted CMB signal in the COSMOSOMAS maps using the best fit Lambda-CDM model to the WMAP power spectrum. Cross-correlation of COSMOSOMAS data with the DIRBE map at 100 μm shows the existence of a common signal with amplitude 7.4+/- 1.1, 7.5+/- 1.1, and 6.5+/-2.3 muK in the 12.7, 14.7 and 16.3 GHz COSMOSOMAS maps at |b|>30^°. Using the WMAP data we find this DIRBE correlated signal rises from high to low frequencies flattening below ~20 GHz. At higher galactic latitudes the average amplitude of the correlated signal with the DIRBE maps decreases slightly. The frequency behaviour of the COSMOSOMAS/WMAP correlated signal with DIRBE is not compatible with the expected tendency for thermal dust. A study of the H-alpha emission maps do not support free-free as a major contributor to that signal. Our results provide evidence of a new galactic foreground with properties compatible with those predicted by the spinning dust models.
description: 11 pages, 21 figures. Submitted to MNRAS. For paper with figures at full resolution, see http://www.iac.es/project/cmb/cosmosomas/
Spin Dynamics in the Two-Dimensional Spin 1/2 Heisenberg Antiferromagnet
Creators: name: Albuquerque, A. F.
name: Pires, A. S. T.
name: Gouvea, M. E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present low-temperature dynamic properties of the quantum two-dimensional antiferromagnetic Heisenberg model with spin S=1/2. The calculation of the dynamic correlation function is performed by combining a projection operator formalism and the modified spin-wave theory (MSW), which gives a gap in the dispersion relation for finite temperatures. The so calculated dynamic correlation function shows a double peak structure.We also obtain the spin-wave damping and compare our results to experimental data and to theoretical results obtained by other authors using different approaches.
description: 17 pages, 5 figures and 1 table
Baraxina rutai Hlaváč & Jałoszyński 2021, sp. n.
Creators: name: Hlaváč, Peter
name: Jałoszyński, Paweł
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Baraxina
Baraxina rutai

description: Baraxina rutai sp. n. (Fig. 23) Material studied: Holotype: ♁: NEW CALEDONIA, with one label: " NEW CALEDONIA (N) / 21.4074 / 165.5250 / Col des Roussettes / rainforest nr. Refuge 530 m / 2.12.2010 sifting litter / leg. R. Ruta, M. Wanat " [white, printed] (MNHN). Paratype: 1♀: same data as for holotype (MNHW). Diagnosis. Profemora in males lacking spine, and protibiae curved and expanded apically; aedeagus with two lateral groups of only 2–4 long sclerites, situated in submedian region, each paramere with one apical seta. Description. Body bicoloured, head and pronotum dark brown, elytra and abdomen brown, but distinctly ligther than anterior parts of body, maxillary palpi, antennae and legs brown, maxillary palpi darker than remaining appendages. Body length 1.86 mm, maximum width 0.69 mm. Head about as long as wide. External apical margin of maxillary palpomere 2 evenly rounded, not projecting; palpomere 3 subrectangular, external margin rounded; palpomere 4 stout and short, 0.18 mm long, 2.55 times as long as wide. Antennae 0.92 mm long, scape 1.75 times as long as pedicel; pedicel 1.33 times longer than antennomere 3; antennomeres 3, 4 and 7 subequal in length; antennomere 5 short, about 1.3 times as long as 6; antennomere 7 slightly shorter than 6, about as long as 8; antennomere 9 transverse, about 1.2 times as long as wide; antennomere 10 transverse, 1.25 times as wide as long and 1.6 times as long as 9; antennomere 11 0.21 mm long, nearly symmetrical, lacking basal notch. Pronotum about 1.1 times as wide as long, about 1.1 times as long and 1.17 times as wide as head. Elytra 1.52 times as long as pronotum, 1.13 times as wide as long. First visible abdominal tergite (IV) with basal impression well-defined, discal carinae short, not reaching basal third of tergite. Profemora lacking spine; protibiae curved and expanded behind small apical spine. Aedeagus (Fig. 23) in dorsal view symmetrical, 0.43 mm long, apex of median lobe undivided; endophallic sclerites forming two lateral groups composed of 2 and 4 components and situated in submedian region; parameres with rounded apices, each with one apical seta. Etymology. Named after Rafał Ruta (Wrocław, Poland), one of the collectors of the holotype. Distribution. New Caledonia, Southern Province. Remarks. Both studied specimens were collected by sifting forest leaf litter.
description: Published as part of Hlaváč, Peter & Jałoszyński, Paweł, 2021, The Pselaphinae (Coleoptera: Staphylinidae) of New Caledonia and Loyalty Islands. IV. Revision of the genus Baraxina Raffray, 1896, pp. 193-216 in Zootaxa 4941 (2) on pages 204-205, DOI: 10.11646/zootaxa.4941.2.3, http://zenodo.org/record/4594979
INVESTIGATING COMPOSTING AS A METHOD FOR REDUCING ESTROGENICTY IN POULTRY LITTER AND BIOSOLIDS
Creators: name: Hammett, Kirsten
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Toxicology
subject: Endocrinology
subject: Biosolids
subject: Composting
subject: Endocrine Disruption
subject: Estrogen
subject: Poultry Litter
subject: Runoff

description: Biosolids and poultry litter contain the natural estrogens 17β-estradiol and estrone, which can be transported to receiving waters via runoff when these materials are used as fertilizers. Estrogens are of concern because of their ability to act as endocrine disruptors and feminize fish. In this study, In-Vessel Aerated and Turned composting was investigated for its efficacy at mitigating estrogen concerns in BS and PL. Pre- and post- composted, BS and PL samples were investigated for total estrogenicity and estrogen species concentrations. In addition, conversion of estrone to 17β-estradiol was investigated by measuring the creation of deuterated 17β-estradiol from a deuterium-labeled estrone stock within aqueous PL mixtures. Data from these studies indicates that there may be efficacy in composting BS and PL prior to land application and suggest that estrone is capable of converting to the more potent 17β-estradiol species as a result of entering microbially active environments.
Το digital marketing στην εποχή του GDPR
Creators: name: Μαστροδήμου, Μαρία-Τσαμπίκα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2023
Subjects: subject: Καταναλωτές
subject: Cookies
subject: Γενικός Κανονισμός Προστασίας Δεδομένων (ΓΚΠΔ)
subject: Chatbots
subject: ChatGPT
subject: Cookie-less era
subject: Προστασία προσωπικών δεδομένων
subject: Ψηφιακό μάρκετινγκ

description: Το παρόν κείμενο πραγματεύεται τη σχέση και την επίδραση, που επέφερε και θα συνεχίσει να επιφέρει ο Γενικός Κανονισμός για την Προστασία των Δεδομένων Προσωπικού Χαρακτήρα (εφεξής ΓΚΠΔ) στο ψηφιακό μάρκετινγκ (digital marketing). Στο πλαίσιο της εν λόγω εργασίας, θα γίνει μια παρουσίαση των εννοιών του μάρκετινγκ και της διαφοράς του με το ψηφιακό μάρκετινγκ, καθώς και ορισμένων πολύ βασικών εργαλείων, που χρησιμοποιούνται στο πλαίσιο του digital marketing. Στα πλαίσια λοιπόν αυτού, χρησιμοποιείται πλήθος πρακτικών από τους υπεύθυνους του marketing (marketers), οι οποίες έχουν ως στόχο να προσεγγίσουν οι επιχειρήσεις ευκολότερα τους εν δυνάμει πελάτες τους και να τους βοηθούν ως προς τον τρόπο με τον οποίο θα κινηθούν και θα πράξουν, έχοντας ως γνώμονα τις προτιμήσεις των καταναλωτών, μεγιστοποιώντας έτσι τα έσοδά τους. Οι πρακτικές αυτές βέβαια, σχετίζονται άμεσα με την ιδιωτικότητα των χρηστών του διαδικτύου, δημιουργώντας στους τελευταίους ένα αίσθημα ασφάλειας αναφορικά με τα προσωπικά δεδομένα που συλλέγονται, επεξεργάζονται και αποθηκεύονται ανάλογα με την ιστοσελίδα που επισκέπτονται κάθε φορά. Αυτή η ασφάλεια των χρηστών και η εν γένει προστασία της ιδιωτικότητας και των προσωπικών δεδομένων τους, αποτέλεσε έναν από τους λόγους για τους οποίους θεσμοθετήθηκε ο ΓΚΠΔ (2016/679) το έτος 2016 στην Ευρώπη και τέθηκε σε εφαρμογή τον Μάιο του 2018. Σκοπός του Κανονισμού είναι η προστασία των δικαιωμάτων των φυσικών προσώπων μέσω μιας σειράς ρυθμίσεων για ζητήματα χρηστών του διαδικτύου και της απαίτησης των επιχειρήσεων που επεξεργάζονται καθημερινά πληθώρα προσωπικών δεδομένων των χρηστών. Συνεπώς, με την παρούσα εργασία θα παρουσιαστούν οι αλλαγές που επέφερε ο ΓΚΠΔ στο ψηφιακό μάρκετινγκ, τα αποτελέσματα που είχε η εφαρμογή του σε αυτόν τον κλάδο, ενώ θα εξεταστούν ειδικότερα ζητήματα, όπως ενδεικτικά τα cookies και παρόμοιοι ιχνηλάτες, την επιρροή της τεχνητής νοημοσύνης στον τομέα αυτό, ενώ λόγος θα γίνει και για ορισμένα θέματα που θα απασχολήσουν μελλοντικά τους υπεύθυνους του marketing όσο και εμάς τους χρήστες κατά συνέπεια, αναφορικά με την μετά-cookie εποχή. Είναι αυτονόητο, ότι η διαφύλαξη της ιδιωτικότητας και η προστασία των δεδομένων προσωπικού χαρακτήρα στο διαδίκτυο, είναι αναγκαία και για τον λόγο αυτό κάθε επιχείρηση οφείλει να εφαρμόζει, να τηρεί και να ανταποκρίνεται στα όσα επιτάσσει ο Κανονισμός.
The Astro-Primordial Black Hole Merger Rates: a Reappraisal
Creators: name: Kritos, K.
name: De Luca, V.
name: Franciolini, G.
name: Kehagias, A.
name: Riotto, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Mainly motivated by the recent GW190521 mass gap event which we take as a benchmark point, we critically assess if binaries made of a primordial black hole and a black hole of astrophysical origin may form, merge in stellar clusters and reproduce the LIGO/Virgo detection rate. While two previously studied mechanisms -- the direct capture and the three body induced -- seem to be inefficient, we propose a new "catalysis" channel based on the idea that a subsequent chain of single-binary and binary-binary exchanges may lead to the formation of a high mass binary pairs and show that it may explain the recent GW190521 event if the local overdensity of primordial black holes in the globular cluster is larger than a few.
description: 24 pages, 4 figures. v2: matching published version
Testing the GRB Variability/Peak Luminosity correlation using the pseudo-redshifts of a large sample of BATSE GRBs
Creators: name: Guidorzi, Cristiano
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We test the correlation found by Reichart et al. (2001) between time variability and peak luminosity of Gamma-Ray Bursts (GRBs). Recently Guidorzi et al. (2005) found that this still holds for a sample of 32 GRBs with spectroscopic redshift, although with a larger scatter than that originally found by Reichart et al. (2001). However Guidorzi et al. (2005) also found that a power law does not provide a good description of that. We report on the same test performed on a sample of 551 BATSE GRBs with a significant measure of variability assuming the pseudo-redshifts derived by Band et al. (2004) (1186 GRBs) through the anticorrelation between spectral lag and peak luminosity. We still find a correlation between variability as defined by Reichart et al. (2001) and peak luminosity with higher significance. However, this subsample of BATSE GRBs show a higher scatter around the best-fitting power law than that found by Reichart et al. (2001) in the variability/peak luminosity space. This is in agreement with the result found by Guidorzi et al. (2005) on a sample of 32 GRBs with measured redshift. These results confirm that a power law does not provide a satisfactory description for all the GRBs, in contrast with the original findings by Reichart et al. (2001).
description: MNRAS, accepted, 6 pages, 4 figures
A STUDY ON CRITICAL HEAT FLUX MECHANISMS AND THE TRANSITION TO FILM BOILING
Creators: name: Thompson, Jason Christopher
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Engineering
subject: Energy
subject: CHF
subject: Impinging Jet
subject: Novec 7000
subject: Pool Boiling

description: An infrared (IR) thermometry technique was used to study the critical heat flux (CHF) and the transition to film boiling during pool boiling and submerged jet impingement. Highly resolved temporal and spatial heat transfer measurements were obtained by measuring temperature distributions on the surfaces of an IR transparent test heater with a mid-range IR camera. Measurements were obtained for the nucleate boiling regime, CHF, early transition boiling regime, and through the transition to film boiling. The local heat flux, temperature, and dryout characteristics were used to compare the submerged jet and pool boiling conditions. It was found that similar mechanisms govern CHF and the transition to film boiling. This finding supports that the hydrodynamic models are incorrect, and CHF is governed by the surface characteristics and the dynamics of the microlayer.
Superconductivity in undoped T'-RE2CuO4 with Tc over 30 K
Creators: name: Matsumoto, O.
name: Utsuki, A.
name: Tsukada, A.
name: Yamamoto, H.
name: Manabe, T.
name: Naito, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In this article, we report the superconductivity in T'-RE2CuO4 (RE = Pr, Nd, Sm, Eu, and Gd), which have been for a long time believed as a Mott insulator. Our discovery was achieved by using metal-organic decomposition (MOD), an inexpensive and easy-to-implement thin-film process. The keys to prepare the superconducting films are firing with low partial-pressure of oxygen and reduction at low temperatures. The highest Tc of undoped T'-RE2CuO4 is over 30 K, substantially higher than "electron-doped" analogs. Remarkably, Gd2CuO4, even the derivatives of which have not shown superconductivity so far, gets superconducting with Tconset as high as 20 K. The implication of our discovery is briefly discussed.
description: 17 pages, 5 figures, International Symposium on Superconductivity 2007
Exercise training-associated differences in circulating microRNAs and serum-induced endothelial cell migration rate
Creators: name: Sapp, Ryan M.
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Kinesiology
subject: Physiology
subject: FOS: Biological sciences
subject: Cardiovascular Disease
subject: Endothelial
subject: Exercise
subject: microRNA
subject: Migration
subject: Serum

description: Cardiovascular Diseases (CVDs) are the primary source of global mortality and morbidity. The initial steps of CVD development occur in the endothelium. MicroRNAs (miRNAs) have recently emerged as novel regulators of cardiovascular physiology and pathology. Interestingly, regular aerobic exercise acts to prevent CVDs and also regulates miRNAs in the circulation (ci-miRNAs). The purpose of this study was to determine the effects of serum from highly active and sedentary, young, healthy individuals on migration rate of endothelial cells in vitro. Secondarily, CVD-associated ci-miRNAs in serum were compared between groups. The results of this study represent a novel way by which sedentary behavior may act as an early risk for CVD development before the appearance of other classic risk factors. RT-qPCR array analysis identified nine ci-miRNAs as > 4-fold differentially expressed in serum of trained versus inactive subjects, though more subjects are needed before any conclusions about ci-miRNA differences can be made.
Frieling, Reinhard; Schultze; Herbert: Religionsunterricht und Konfessionen
Creators: name: Boeckler, Richard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 26 Nr. 1 (1977): Ökumenische Rundschau, Band 26, Heft 1
Structure of the $σ$-meson and diamagnetism of the nucleon
Creators: name: Levchuk, M. I.
name: L'vov, A. I.
name: Milstein, A. I.
name: Schumacher, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The structure of the $σ$ meson and the diamagnetism of the nucleon are shown to be topics which are closely related to each other. Arguments are found that the $σ$ meson couples to two photons via its non-strange $q\bar{q}$ structure component. This ansatz leads to a quantitative explanation of the $t$-channel component of the difference of electromagnetic polarizabilities, (α-β)^t$, containing the diamagnetism of the nucleon. The prediction is $(α-β)^t_{p,n}=(5α_e g_{πMM})/(6π^2 m^2_σf_π)=15.3$ in units of $10^{-4}{\rm fm}^3$ to be compared with the experimental value $(α-β)^t_p=15.1\pm 1.3$ for the proton and $(α-β)^t_n=14.8\pm 2.7$ for the neutron. The equivalent approach to exploit the $ππ$ structure component of the $σ$ meson via the BEFT sum rule leads to $(α-β)^t_{p,n}=14\pm 2$, what also is in agreement with the experimental results.
description: Contribution made by Martin Schumacher to the International Workshop on the Physics of Excited Baryons, 12 - 15 Oct. 2005, Tallahasse, Florida USA