cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Density and Temperature Structure of TMC-1C from 450 and 850 micron Maps
Creators: name: Schnee, S.
name: Goodman, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have mapped the central 10'x10' of the dense core TMC-1C at 450 and 850 microns using SCUBA on the James Clerk Maxwell Telescope. The unusually high quality of the 450 micron map allows us to make a detailed analysis of the temperature and column density profiles of the core. We find that the dust temperature at the center of TMC-1C is 7 K, rising to 11 K at the edges. We discuss the possibility and effects of a variable emissivity spectral index on the derived mass profile. The low dust temperature of TMC-1C results in a high derived mass for the core, significantly larger than the virial mass estimated from the linewidth of the N2H+ (1-0) transition. This result is valid within a wide range of dust properties and ellipticities of the core. The N2H+ (1-0) spectra, taken with the IRAM 30m telescope, show signs of self-absorption, which provide evidence of sub-sonic infall motions. The derived density profile and infall velocity is compared to the predictions of several popular star formation models, and the Bonnor-Ebert model isthe best fit analytic model.
description: 38 pages, 13 Figures, accepted to ApJ
The fast radio burst population evolves, consistent with the star-formation rate
Creators: name: James, C. W.
name: Prochaska, J. X.
name: Macquart, J. -P.
name: North-Hickey, F.
name: Bannister, K. W.
name: Dunning, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Fast radio bursts (FRBs) are extremely powerful sources of radio waves observed at cosmological distances. We use a sophisticated model of FRB observations -- presented in detail in a companion paper -- to fit FRB population parameters using large samples of FRBs detected by ASKAP and Parkes, including seven sources with confirmed host galaxies. Our fitted parameters demonstrate that the FRB population evolves with redshift in a manner consistent with, or faster than, the star-formation rate (SFR), ruling out a non-evolving population at 99.9\% C.L. Our estimated maximum FRB energy is $\log_{10} E_{\rm max} [{\rm erg}] = 41.84_{-0.18}^{+0.49}$ (68\% C.L.) assuming a 1\,GHz emission bandwidth, with slope of the cumulative luminosity distribution $γ=-1.16_{-0.12}^{+0.11}$. We find a log-mean host DM contribution of $145_{-60}^{+64}$\,pc\,cm$^{-3}$ on top of a typical local (ISM and halo) contribution of $\sim80$\,pc\,cm$^{-3}$, which is higher than most literature values. These results are consistent with the model of FRBs arising as the high-energy limit of magnetar bursts, but allow for FRB progenitors that evolve faster than the SFR.
description: 8 pages, 2 tables, 3 figures. Revised from v1 to include (1+z)^-1 time dilation in FRB rate
Laser Irradiated Enhancement of the Atomic Electron Capture Rate in search of New Physics
Creators: name: Nomura, Takaaki
name: Sato, Joe
name: Shimomura, Takashi
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Electron capture processes are important in the search for new physics. In this context, a high capture rate is desired. We investigate the possibility of enhancing the electron capture rate by irradiating laser beam to ''atom''. The possibility of such enhancement can be understood as a consequence of an enhancement of the electron wave function at the origin, $Ψ(0)$, through an increased effective mass of the electron. We find that an order of magnitude enhancement can be realized by using a laser with intensity on the order of $10^{10}$ W/mm$^2$ and a photon energy on the order of $10^{-3}$ eV.
description: 14 pages, 7 figures, editing and typos corrected, title changed
CALCAREOUS NANNOFOSSIL BIOSTRATIGRAPHY AND PALEOCEANOGRAPHY OF THE TOARCIAN OCEANIC ANOXIC EVENT AT COLLE DI SOGNO (SOUTHERN ALPS, NORTHERN ITALY)
Creators: name: CASELLATO, CRISTINA EMANUELA
name: ERBA, ELISABETTA
Publisher: name: Università degli Studi di Milano
Year: 2015
Subjects: calcareous nannofossils; biostratigraphy; paleoecology; paleoceanography; Pliensbachian/Toarcian boundary interval; Toarcian Oceanic Anoxic Event

description: We present calcareous nannofossil biostratigraphy and abundances for the Upper Pliensbachian-Lower Toarcian interval, including the Toarcian Oceanic Anoxic Event (T-OAE), represented by the Fish Level at Colle di Sogno (N Italy). In addition to biohorizons identifying NJT 5 and NJT 6 nannofossil zones, the first occurrences of C. superbus and D. striatus constrain the onset and the end of the T-OAE, respectively. We propose the last occurrence of M. jansae as additional event to approximate the end of the T-OAE at lower latitudes. Quantitative data highlight the “Schizosphaerella decline” marking the Pliensbachian/Toarcian boundary and the “Schizosphaerella crisis” at the onset of the T-OAE as supplementary biohorizons. S. punctulata and M. jansae constitute most of the micrite in the interval below the Fish Level, which is marked by an increase in abundance of small coccoliths remaining abundant in the overlying interval, with limited contributions of S. punctulata, while M. jansae disappears. Principal Component Analysis implemented nannofossil paleoecological and paleoenvironmental reconstructions. The latest Pliensbachian was characterized by stable oligotrophic conditions favourable to calcification at low pCO2 levels promoting the proliferation of deep-dwelling and highly-calcified S. punctulata. During the earliest Toarcian an initial pulse of continental run-off introduced terrigenous material favouring the intermediate-dweller M. jansae and the low-salinity adapted Calyculus. Higher nutrient concentrations and ocean acidification magnified during the T-OAE, stimulatying mesotrophic low-calcified coccolith-producers and suppressing k-strategist deep- to intermediate-dwellers. After the T-OAE, partial recovery of calcareous nannoplankton indicates still perturbed conditions. Ecosystem modifications anticipated the T-OAE of ~1 million years with species origination and major changes in assemblages.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 121, No 3
О сложносочиненных предложениях в разносистемных языках (на примере долганского и эскимосского языков)
Creators: name: Лебединская, Виктория
Publisher: name: ООО Цифра
Year: 2024
Subjects: Dolgan language
Eskimo language
Turkic languages
Paleo-Asian languages
syntax
complex sentence
polypredicative and predicative constructions
долганский язык
эскимосский язык
тюркские языки
палеоазиатские языки
синтаксис
сложное предложение
полипредикативные и предикативные конструкции

description: Russian Linguistic Bulletin, Выпуск 10 (58) 2024
An analytical anisotropic compact stellar model of embedding class I
Creators: name: Baskey, Lipi
name: Das, Shyam
name: Rahaman, Farook
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A class of solutions of Einstein field equations satisfying Karmarkar embedding condition is presented which could describe static, spherical fluid configurations, and could serve as models for compact stars. The fluid under consideration has unequal principal stresses i.e. fluid is locally anisotropic. A certain physically motivated geometry of metric potential has been chosen and codependency of the metric potentials outlines the formation of the model. The exterior spacetime is assumed as described by the exterior Schwarzschild solution. The smooth matching of the interior to the exterior Schwarzschild spacetime metric across the boundary and the condition that radial pressure is zero across the boundary lead us to determine the model parameters. Physical requirements and stability analysis of the model demanded for a physically realistic star are satisfied. The developed model has been investigated graphically by exploring data from some of the known compact objects. The mass-radius (M-R) relationship that shows the maximum mass admissible for observed pulsars for a given surface density has also been investigated. Moreover, the physical profile of the moment of inertia (I) thus obtained from the solutions is confirmed by the Bejger-Haensel concept.
description: Accepted in Mod. Phys. Lett. A
MPEC 2024-A69 : 2019 YG2
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
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.
D2.7 Transparency Framework V2
Creators: name: Kirrane, Sabrina
name: Milošević, Uroš
name: Fernández, Javier D.
name: Polleres, Axel
name: Langens, Jonathan
Publisher: name: Zenodo
Year: 2018
Subjects: policy language

description: The objective of the SPECIAL transparency and compliance framework is to help data processors and controllers to understand how the components and know-how developed in SPECIAL can be leveraged within a typical Enterprise setting. Core components of the SPECIAL transparency and compliance framework include: (i) the schema and vocabularies that can be used to express usage policies and data processing and sharing events; (ii) and the corresponding usage control middleware that is needed to interact with such data; and (iii) periphery components required in order to hook into Enterprise Line of Business and Business Intelligence / Data Science systems. The aim of this deliverable is to define the scope of the SPECIAL transparency and compliance framework, which is used to guide the implementation of the SPECIAL platform and components, and also serves as a reference point for the open research challenges that we address in SPECIAL and how they relate to one another. This deliverable builds upon the SPECIAL policy language which is described in D2.1: Policy Language V1. While, related information on the compliance checking, distributed ledger technology, and big data processing can be found Deliverable D2.8 Transparency and Compliance Algorithms V2. In Chapter 1 we provide a high level overview of the SPECIAL landscape. After setting the scene in terms of the data sources, middleware and applications, we discuss the key role of Personally Identifiable Information (PII) in terms of Data Governance and identify open challenges that we aim to address in SPECIAL in Chapter 2. Finally, in Chapter 3, we provide our initial proposal for how the Resource Description Framework can be used to represent data processing and sharing events, by describing the key terms and their relationship both to one another and to the terms specified in SPECIAL usage policies.
STUDIES ON PYCNODONT FISHES (I): EVALUATION OF THEIR PHYLOGENETIC POSITION AMONG ACTINOPTERYGIANS
Creators: name: POYATO-ARIZA, FRANCISCO JOSÉ
Publisher: name: Università degli Studi di Milano
Year: 2015
Subjects: Actinopterygii; Halecostomi; Holostei; Neopterygii; Phylogenetic Relationships; Pycnodontiformes; Teleostei

description: One of the main pending, unsolved problems concerning the study of the pycnodont fishes is their phylogenetic relationships with other major actinopterygian groups. The Pycnodontiformes have often been proposed as the sister group of the Telostei or the Teleosteomorpha. The first extensive cladistic analysis on pycnodont relationships is hereby attempted by coding Pycnodontiformes into a previously existing data matrix with major neopterygian groups: Lepisosteiformes, Semionotiformes, Macrosemiiformes, Halecomorphi, and Teleostei. This analysis has resulted on the Pycnodontiformes having an unexpected position as the most basal Neopterygii among the groups included. Therefore, pycnodonts are not the sister-group of teleosteans, and they are not holosteans either. The phylogenetic relationships and the definition of the Holostei and the Gynglimodi are not affected by the inclusion of the Pycnodontiformes, but the basal position of the latter among Neopterygii may affect the definition of this traditional major actinopterygian group. A collateral consequence of these results is that the Halecostomi can be re-defined as the clade formed by [Holostei + Teleostei]. The phylogenetic relationships of pycnodonts should, consequently, be solved among basal neopterygian groups, mostly from the Triassic, as well as relevant non-neopterygian actinopterygians in order to confirm the neopterygian affinities of the Pycnodontiformes and to verify the definition and diagnosis of the Neopterygii and the Halecostomi.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 121, No 3
Rotational state-changing collisions of C$_2$H$^-$ and C$_2$N$^-$ anions with He under interstellar and cold ion trap conditions: a computational comparison
Creators: name: Franz, Jan
name: Mant, Barry
name: González-Sánchez, Lola
name: Wester, Roland
name: Gianturco, Franco A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present an extensive range of quantum calculations for the state-changing rotational dynamics involving two simple molecular anions which are expected to play some role in evolutionary analysis of chemical networks in the Interstellar environments, C$_2$H$^-$($X^1Σ^+$) and C$_2$N$^-$ ($X^3 Σ^-$) but for which inelastic rates are only known for C$_2$H$^-$. The same systems are also of direct interest in modelling selective photo-detachment (PD) experiments in cold ion traps where the He atoms function as the chief buffer gas at the low trap temperatures. This study employs accurate, \textit{ab initio} calculations of the interaction potential energy surfaces (PESs) for these anions, treated as Rigid Rotors (RR) and the He atom to obtain a wide range of state-changing quantum cross sections and rates at temperatures up to about 100 K. The results are analysed and compared for the two systems, to show differences and similarities between their rates of state-changing dynamics.
СТРУКТУРООБРАЗУЮЩАЯ РОЛЬ МОДАЛЬНЫХ ЕДИНИЦ В РАМКАХ ПРОЦЕДУРЫ ОПРОВЕРЖЕНИЯ В МЕДИА-ТЕКСТЕ
Creators: name: Лебединская, Виктория
Publisher: name: ООО Цифра
Year: 2024
Subjects: alethic modality
epistemic modality
deontic modality
evidentiality
media text
алетическая модальность
эпистемическая модальность
деонтическая модальность
эвиденциальность
медиа-текст

description: Russian Linguistic Bulletin, Выпуск 10 (58) 2024
Analysing the Epoch of Reionization with three-point correlation functions and machine learning techniques
Creators: name: Jennings, W. D.
name: Watkinson, C. A.
name: Abdalla, F. B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Three-point and high-order clustering statistics of the high-redshift 21cm signal contain valuable information about the Epoch of Reionization. We present 3PCF-Fast, an optimised code for estimating the three-point correlation function of 3D pixelised data such as the outputs from numerical and semi-numerical simulations. After testing 3PCF-Fast on data with known analytic three-point correlation function, we use machine learning techniques to recover the mean bubble size and global ionisation fraction from correlations in the outputs of the publicly available 21cmFAST code. We assume that foregrounds have been perfectly removed and negligible instrumental noise. Using ionisation fraction data, our best MLP model recovers the mean bubble size with a median prediction error of around 10%, or from the 21cm differential brightness temperature with median prediction error of around 14%. A further two MLP models recover the global ionisation fraction with median prediction errors of around 4% (using ionisation fraction data) or around 16% (using brightness temperature). Our results indicate that clustering in both the ionisation fraction field and the brightness temperature field encode useful information about the progress of the Epoch of Reionization in a complementary way to other summary statistics. Using clustering would be particularly useful in regimes where high signal-to-noise ratio prevents direct measurement of bubble size statistics. We compare the quality of MLP models using the power spectrum, and find that using the three-point correlation function outperforms the power spectrum at predicting both global ionisation fraction and mean bubble size.
Nonequilibrium patterns and shape fluctuations in reactive membranes
Creators: name: Reigada, Ramon
name: Buceta, Javier
name: Lindenberg, Katja
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A simple kinetic model of a two-component deformable and reactive bilayer is presented. The two differently shaped components are interconverted by a nonequilibrium reaction, and a phenomenological coupling between local composition and curvature is proposed. When the two components are not miscible, linear stability analysis predicts, and numerical simulations show, the formation of stationary nonequilibrium composition/curvature patterns whose typical size is determined by the reactive process. For miscible components, a linearization of the dynamic equations is performed in order to evaluate the correlation function for shape fluctuations from which the behavior of these systems in micropipet aspiration experiments can be predicted.
description: Erratum incorporated in posted version
GEOLOGIK MUAMMOLAR
Creators: name: Omonova, Zamira
Publisher: name: Zenodo
Year: 2024

description: Mamlakatimizda sanoatni rivojlantirish bo‘yicha qo‘yilgan katta marralarga erishishda iqtisodiyotni mineral resurslar bilan ta’minlash muhim ahamiyatga ega. Keyingi yillarda yurtimizda geologiya sohasini transformatsiya qilish doirasida uning moddiy-texnik bazasi mustahkamlandi, ilmiy izlanishlar va kadrlar tayyorlash kuchaytirildi.
TRANSPORTED RHODOLITHS WITNESS THE LOST CARBONATE FACTORY: A CASE HISTORY FROM THE MIOCENE PIETRA DA CANTONI LIMESTONE (NW ITALY)
Creators: name: COLETTI, GIOVANNI
name: BASSO, DANIELA
name: FRIXA, ALFREDO
name: CORSELLI, CESARE
Publisher: name: Università degli Studi di Milano
Year: 2015
Subjects: rhodoliths; coralline algae; rhodalgal carbonate factory; transport; barnacle; glaucony; phosphates

description: Inner-platform bioclasts may have a remarkable preservation potential when transported toward deeper and quieter basin environments. Rhodoliths can bind skeletal grains during their growth, thereby storing information on their native environment even after transport. The Burdigalian Pietra da Cantoni Group (Piedmont, NW Italy) has been analyzed as an example of lost carbonate factory, to stress the rhodolith potential in studies of displaced sediments and within this framework an overview of the main mechanisms of rhodolith transport is provided. The examined successions testify the progressive sediment starvation of the middle and outer ramp caused by the interruption of shallow-water sediment supply due to sea-level rise. Four facies have been identified: Facies 1 is a coarse limestone characterized by inner-middle ramp rhodalgal skeletal assemblages deposited on the lower middle-ramp; Facies 2 is an impure limestone linked to the inception of sediment starvation; Facies 3 is a glauconitic-phosphatic marly-limestone that marks the end of sediment supply from shallow-water to the lower middle-ramp; Facies 4 is a marly limestone that represents the beginning of hemipelagic sedimentation. The sediment has been displaced toward a deeper setting from its source area, reconstructed as a high-energy and turbid shallow-water environment. The skeletal debris trapped inside the rhodoliths are related to an inner-middle ramp setting and have faithfully witnessed the environment of rhodolith formation.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 121, No 3
Heat shock protein (HSP) expression in the shionogi mouse mammary carcinoma (SC115) in response to steroid hormone treatment in vitro and a change in social housing conditions in vivo
Creators: name: Andrews, Heather Nicola
Publisher: name: University of British Columbia
Year: 2009

description: Previous studies in our laboraotry have shown that social housing conditions can significantly alter the growth rate of the Shionogi mammary carcinoma (SC115). The present study extended investigations of mechanisms underlying the effects of housing condition on tumor growth rate. We focused on changes occurring at the molecular level, on the expression of a group of stress-responsive proteins, the heat shock proteins (HSPs). HSP25, 70 and 90 were examined in SC115 cells in vitro, following exposure to SC115 growth regulatory hormones, and in tumors grown in vivo in mice in different social housing conditions. In vitro, physiological levels of dihydrotestosterone (DHT, n=3) and pharmacological levels of hydrocortisone (HC, n=3) upregulated HSP25, whereas HSP70 and 90 remained unchanged. Conversely, physiological levels of β-estradiol (E₂, n=2) upregulated HSP90, whereas HSP25 and 70 remained unchanged. For the in vivo experiments, mice were reared in groups (G) or as individuals (I). Immediately following tumor cell injection, mice were rehoused from group to individual (Gl, n=36), from individual to group (IG, n=40) or they remained in groups (GG, n=36). All animals (Gl, GG, IG, n=112) were exposed to a daily novelty stressor, shown to increase the differences in tumor growth rates among mice in the different social housing conditions. In addition, mice in a control condition were maintained under standard housing conditions (no housing change or daily novelty stress, GGNS, n=12). Tumor tissue was resected for HSP examination when the average weight of tumors reached 0.8 g (n=56) or 3 g (n=56). In mice subjected to daily novelty stress, HSP25, 70 and 90 was increased in tumors from IG mice compared to GG and Gl mice (0.8 g and 3 g tumors). HSP90 was greater in 3 g tumors compared to 0.8 g tumors from mice in the IG condition. In group housed mice (GGNS and GGS), daily novelty stress decreased HSP70 (0.8 g and 3 g tumors), decreased HSP90 (3 g tumors), and did not alter HSP25. This study has shown that HSP expression is altered in SC115 cells by steroid hormones in vitro and this is the first study to report that psychosocial stressors, a change in social housing condition, can also induce differences in HSP expression in vivo.
ЛИНГВОСТРАНОВЕДЧЕСКИЙ АНАЛИЗ ПЕСЕННОГО ТЕКСТА НА ЗАНЯТИЯХ ПО НЕМЕЦКОМУ ЯЗЫКУ (НА МАТЕРИАЛЕ ПЕСНИ ГАНСА ЛЯЙПА «LILI MARLEEN»)
Creators: name: Сообщество рецензентов Международного научно-исследовательского журнала
Publisher: name: ООО Цифра
Year: 2024
Subjects: German language teaching
linguocultural analysis
song lyrics
socio-cultural context
means of artistic expression
обучение немецкому языку
лингвострановедческий анализ
песенный текст
социокультурный контекст
средства художественного выражения

description: Russian Linguistic Bulletin, Выпуск 10 (58) 2024
Dynamical Polarizability of Graphene with Spatial Dispersion
Creators: name: Zhu, Tao
name: Antezza, Mauro
name: Wang, Jian-Sheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We perform a detailed analysis of electronic polarizability of graphene with different theoretical approaches. From Kubo's linear response formalism, we give a general expression of frequency and wave-vector dependent polarizability within the random phase approximation. Four theoretical approaches have been applied to the single-layer graphene and their differences are on the band-overlap of wavefunctions. By comparing with the \textit{ab initio} calculation, we discuss the validity of methods used in literature. Our results show that the tight-binding method is as good as the time-demanding \textit{ab initio} approach in calculating the polarizability of graphene. Moreover, due to the special Dirac-cone band structure of graphene, the Dirac model reproduces results of the tight-binding method for energy smaller than \SI{3}{\electronvolt}. For doped graphene, the intra-band transitions dominate at low energies and can be described by the Lindhard formula for two-dimensional electron gases. At zero temperature and long-wavelength limit, with the relaxation time approximation, all theoretical methods reduce to a long-wave analytical formula and the intra-band contributions agree to the Drude polarizability of graphene. Effects of electrical doping and temperature are also discussed. This work may provide a solid reference for researches and applications of the screening effect of graphene.
description: 10 pages, 6 figures
MYRIAPORA SCIUTOI N. SP., A NEW FOSSIL ATLANTO-MEDITERRANEAN BRYOZOAN SPECIES, AND COMMENTS ON ALLIED TAXA
Creators: name: ROSSO, ANTONIETTA
name: DI MARTINO, EMANUELA
Publisher: name: Università degli Studi di Milano
Year: 2015
Subjects: Taxonomy; Myriaporidae; Leieschara; deep-sea; Cenozoic; Tortonian; Messinian; Gelasian

description: We describe a new fossil species of Myriapora, M. sciutoi n. sp., which is similar in general appearance to the Recent, Atlantic, deep-sea species M. bugei d'Hondt, 1975. The new species has been found in sediments of the late Tortonian-Messinian of NW Morocco, and the Gelasian of NE Sicily and south Calabria, Italy. The main diagnostic characters of the new species are: erect, rigid growth, with lateral branches developing at right angles; arrangement of the zooids in whorls; dimorphic orifice, which has a very marked sinus in autozooids; prominent ooecia usually present in all the zooids from the same whorl. The previous diagnosis of the genus has been amended in order to include the presence of species with zooids arranged in whorls, in addition to those arranged quincuncially. A generic reassignment to Myriapora or to the allied genus Leieschara for all the known species to date is also proposed. The geographical and stratigraphical distribution of M. sciutoi n. sp. suggests a recolonization of the Mediterranean, after the Messinian Salinity Crisis, from founder populations that have survived in the Atlantic.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 121, No 3
Drawing code, data, and results of "An Unstructured Mesh Generation Tool for Efficient High-Resolution Representation of Spatial Heterogeneity in Land Surface Models"
Creators: name: Fan, Hanwen
Publisher: name: Zenodo
Year: 2024

description: Drawing code, data, and results of "An Unstructured Mesh Generation Tool for Efficient High-Resolution Representation of Spatial Heterogeneity in Land Surface Models"
Happy endings for flip graphs
Creators: name: Eppstein, David
Publisher: name: arXiv
Year: 2006
Subjects: subject: Computational Geometry (cs.CG)
subject: Combinatorics (math.CO)
subject: Metric Geometry (math.MG)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.2.2

description: We show that the triangulations of a finite point set form a flip graph that can be embedded isometrically into a hypercube, if and only if the point set has no empty convex pentagon. Point sets of this type include convex subsets of lattices, points on two lines, and several other infinite families. As a consequence, flip distance in such point sets can be computed efficiently.
description: 26 pages, 15 figures. Revised and expanded for journal publication
Quantum Dynamics under continuous projective measurements: non-Hermitian description and the continuous space limit
Creators: name: Dubey, Varun
name: Bernardin, Cedric
name: Dhar, Abhishek
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The problem of the time of arrival of a quantum system in a specified state is considered in the framework of the repeated measurement protocol and in particular the limit of continuous measurements is discussed. It is shown that for a particular choice of system-detector coupling, the Zeno effect is avoided and the system can be described effectively by a non-Hermitian effective Hamiltonian. As a specific example we consider the evolution of a quantum particle on a one-dimensional lattice that is subjected to position measurements at a specific site. By solving the corresponding non-Hermitian wave function evolution equation, we present analytic closed-form results on the survival probability and the first arrival time distribution. Finally we discuss the limit of vanishing lattice spacing and show that this leads to a continuum description where the particle evolves via the free Schrodinger equation with complex Robin boundary conditions at the detector site. Several interesting physical results for this dynamics are presented.
description: 30 pages, 5 figures
Generalized macroscopic Schrodinger equation in scale relativity
Creators: name: Celerier, Marie-Noelle
name: Nottale, Laurent
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The scale transformation laws produce, on the motion equations of gravitating bodies and under some peculiar assumptions, effects which are anologous to those of a "macroscopic quantum mechanics". When we consider time and space scales such that the description of the trajectories of these bodies (planetesimals in the case of planetary system formation, interstellar gas and dust in the case of star formation, etc...) is in the shape of non-differentiable curves, we obtain fractal curves of fractal dimension 2. Continuity and non-differentiability yield a fractal space and a symmetry breaking of the differential time element which gives a doubling of the velocity fields. The application of a geodesics principle leads to motion equations of Schrodinger-type. When we add an outside gravitational field, we obtain a Schrodinger-Poisson system. We give here the derivation of the Schrodinger equation for chaotic systems, i.e., with time scales much longer than their Lyapounov chaos-time.
description: 4 pages, oral communication in the framework of the 4eme Semaine de l'Astrophysique Francaise, Paris, 2004
BICHORDITES MONASTIRIENSIS ICHNOFABRIC FROM THE PLEISTOCENE SHALLOW-MARINE SANDSTONES AT LE CASTELLA (CROTONE), IONIAN CALABRIA, SOUTHERN ITALY
Creators: name: CARUSO, CLAUDIA
name: MONACO, PAOLO
Publisher: name: Università degli Studi di Milano
Year: 2015
Subjects: Bioturbation; Bichordites; Echinoidea; Taphonomy; Pleistocene; Calabria

description: The analysis of Bichordites ichnofabric has been performed in laminated calcarenites of Upper Pleistocene marine terraces of the Crotone Peninsula, Ionian Calabria, outcropping in the coast nearby the village of Le Castella (southern Italy). These calcarenitic deposits show an intense and pervasive bioturbation, preserved mainly as endichnia s.s., exposed endichnia (false epichnia with hyp- and epireliefs) and crossichnia, dominated by Bichordites monastiriensis. Other forms (more rare) are Cardioichnus isp., Ophiomorpha nodosa, Planolites beverleyensis and ?Macaronichnus-like trace fossils. This shallow-water ichnofabric, that is recurrent in many sandy shallow water marine terraces of Pleistocene, exhibits hundreds of Bichordites monastiriensis (meniscate burrows) that are studied in cross sections and plane views. A detailed taphonomic study shows many differences in the central core of Bichordites monastiriensis that varies in shape, length and dimension, from the outer meniscate envelopment, following the burrowing action of spatangoid echinids in sandy substrate. The rhythmical arrangement in shape and density of Bichordites in foreshore sandy bars with megaripples, with a regressive trend in the stratigraphic section, likely reflects variations and the strength of current along coast.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 121, No 3
Drawing code, data, and results of "An Unstructured Mesh Generation Tool for Efficient High-Resolution Representation of Spatial Heterogeneity in Land Surface Models"
Creators: name: Fan, Hanwen
Publisher: name: Zenodo
Year: 2023

description: Drawing code, data, and results of "An Unstructured Mesh Generation Tool for Efficient High-Resolution Representation of Spatial Heterogeneity in Land Surface Models"
The smoothness of orbital measures on noncompact symmetric spaces
Creators: name: Gupta, Sanjiv Kumar
name: Hare, Kathryn E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: Let $G/K$ be an irreducible symmetric space where $G$ is a non-compact, connected Lie group and $K$ is a compact, connected subgroup. We use decay properties of the spherical functions to show that the convolution product of any $r=r(G/K)$ continuous orbital measures has its density function in $% L^{2}(G)$ and hence is an absolutely continuous measure with respect to Haar measure. The number $r$ is approximately the rank of $G/K$. For the special case of the orbital measures, $ν_{a_{i}}$, supported on the double cosets $Ka_{i}K$ where $a_{i}$ belongs to the dense set of regular elements, we prove the sharp result that $ν_{a_{1}}\ast ν_{a_{2}}\in L^{2},$ except for the symmetric space of Cartan type $AI$ when the convolution of three orbital measures is needed (even though $ν_{a_{1}}\ast ν_{a_{2}}$ is absolutely continuous).
Location modeling of Final Palaeolithic sites in Northern Germany - Supplementary information
Creators: name: Hamer, Wolfgang
name: Knitter, Daniel
name: Grimm, Sonja B.
name: Serbe, Benjamin
name: Eriksen, Berit Valentin
name: Nakoinz, Oliver
name: Duttmann, Rainer
Publisher: name: Zenodo
Year: 2019
Subjects: Location modeling; deductive modeling; spatial point patterns; spatial clustering; fuzzy; Palaeolithic

description: This folder contains files with R-code, which was used to generate the results of the article "Location modeling of Final Palaeolithic sites in Northern Germany".
 In order to apply the code in the given form to the exemplary study area different raw data (not contained) are necessary: 1. The archaeological data ("B1Daten_A2Daten_fertig.xlsx") are based upon data of the Archäologisches Landesamt Schleswig-Holstein
 2. The elevation model is the European Digital Elevation Model (EU-DEM), Version 1.1 (https://land.copernicus.eu/imagery-in-situ/eu-dem/eu-dem-v1.1/view)
 3. Natural units obtained by "Bundesamt für Naturschutz. Naturräumliche Gliederung nach Meynen/Schmithüsen - Naturräume und Großlandschaften."
 4. Geological data (https://www.bgr.bund.de/EN/Themen/Sammlungen-Grundlagen/GG_geol_Info/Karten/Deutschland/GUEK200/guek200_node_en.html)
 5. Pedological data (https://www.bgr.bund.de/EN/Themen/Boden/Projekte/Informationsgrundlagen_laufend/BUEK200/BUEK200_en.html) If you have any questions please do not hesitate to contact Wolfgang Hamer (hamer@geographie.uni-kiel.de)
description: The research was conducted and financed in the context of the Collaborative Research Centre 1266 "Scales of Transformation - Human-environmental interaction in prehistoric and archaic societies" of the German Research Foundation (DFG, German Research Foundation - project number 2901391021 - SFB 1266). We are very grateful for the provision of geodata for our archaeological sites by the Archaeological State Office Schleswig-Holstein.
Monitoring field soil suction using a miniature tensiometer
Creators: name: Cui, Yu-Jun
name: Tang, Anh-Minh
name: Mantho, Altin Theodore
name: De Laure, Emmanuel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: An experimental device was developed to monitor the field soil suction using miniature tensiometer. This device consists of a double tube system that ensures a good contact between the tensiometer and the soil surface at the bottom of the testing borehole. This system also ensures the tensiometer periodical retrieving without disturbing the surrounding soil. This device was used to monitor the soil suction at the site of Boissy-le-Châtel, France. The measurement was performed at two depths (25 and 45 cm) during two months (May and June 2004). The recorded suction data are analyzed by comparing with the volumetric water content data recorded using TDR (Time Domain Reflectometer) probes as well as the meteorological data. A good agreement between these results was observed, showing a satisfactory performance of the developed device.
Role of B integrins in the early differentiation of the RPE and neural retina in the chicken embryo
Creators: name: Iagallo, Michael Charles Anthony
Publisher: name: University of British Columbia
Year: 2009

description: The early differentiation of the retina and retinal pigment epithelium (RPE) of the chicken embryo involves a complex series of morphological changes and cell migrations. The interactions of extracellular matrix (ECM) molecules, cell adhesion molecules such as P, integrins, and soluble growth factors are believed to mediate this process. The temporal and spatial distribution of ECM molecules laminin and fibronectin and the integrin subunits β₁, α₃,α₄, α₅, α₆, andα, was determined by immunohistochemistry in the chicken embryo between stage 8 (E2) and stage 24 (E4). Laminin and fibronectin were present in basement membranes throughout the stages examined, and intracellular fibronectin was observed in stages 8 through 24. Fibronectin staining in ganglion cells at stages 22-23 is reported for the first time. A pericellular staining pattern was observed for β₁ integrin subunit at all stages examined. Alpha 3, α₄, α₅, and α₆ integrins showed a polarized distribution in the RPE postoptic cup formation. Alpha v integrin displayed a diffuse, vesicular staining pattern throughout the stages examined except for a distinctive zipper-like staining pattern at the RPE-NR interface. This pattern is possibly an indication of cell-cell interactions between the neuroblasts of the outer NR and the RPE. Alpha 3 integrin appeared to be heavily expressed in the differentiating RPE, and in the early migrating neuroblasts. The distribution of α₄ integrin is mainly in ectodermal structures before optic cup formation, but became more widespread within the NR and especially in the RPE basement membrane. The α₅ integrin distribution indicated a role in early differentiation of lens fibres and ganglion cells. Alpha 6 was only expressed in the post-optic cup retina. This distribution suggests a role in later developmental events such as neurite extension and maintenance of differentiated phenotype. The distribution of β₁ and a integrin subunits with respect to morphological changes observed during retina development point to a significant role of integrin-ECM interactions
ҲУҚУҚБУЗАРЛИКЛАР ПРАФИЛАКТИКАСИДА  ФУҚАРОЛАРНИНГ ҲУҚИЙ ОНГИ ВА ХУҚУҚИЙ МАДАНИЯТИНИ ЮКСАЛТИРИШНИНГ ХУҚУҚИЙ АСОСЛАРИ.
Creators: name: Умматов, Мамарасул
name: Анваржонов, Зикрилло
Publisher: name: Zenodo
Year: 2024

description: Ушбу мақолада Ҳуқуқбузарликлар прафилактикасида фуқароларнинг хуқуқий онги ва хуқуқий маданиятини юксалтиришнинг хуқуқий асослари  тўғрисида фикр юритилган ҳамда ушбу фаолият юзасидан кўплаб тушунчаларга таьриф берилган.
НЕНОРМАТИВНАЯ ЛЕКСИКА КАК ОДНА ИЗ СОСТАВЛЯЮЩИХ КОММУНИКАЦИИ В СОРЕВНОВАТЕЛЬНЫХ ОНЛАЙН-ИГРАХ
Creators: name: Булгарова, Белла
Publisher: name: ООО Цифра
Year: 2024
Subjects: online games
communication
comments
game chat
voice chat
profanity
obscene language
swear words
rudeness
vulgarisms
linguocynisms
aggression
онлайн-игры
коммуникация
комментарии
игровой чат
голосовой чат
ненормативная лексика
обсценная лексика
мат
грубость
вульгаризмы
лингвоцинизмы
агрессия

description: Russian Linguistic Bulletin, Выпуск 10 (58) 2024
The flaring X-ray corona in the quasar PDS 456
Creators: name: Reeves, James
name: Braito, Valentina
name: Porquet, Delphine
name: Lobban, Andrew
name: Matzeu, Gabriele
name: Nardini, Emanuele
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: New Swift monitoring observations of the variable, radio-quiet quasar, PDS 456, are presented. A bright X-ray flare was captured in September 2018, the flux increasing by a factor of 4 and with a doubling time-scale of 2 days. From the light crossing argument, the coronal size is inferred to be about 30 gravitational radii for a black hole mass of $10^{9} {\rm M}_{\odot}$ and the total flare energy exceeds $10^{51}$ erg. A hardening of the X-ray emission accompanied the flare, with the photon index decreasing from $Γ=2.2$ to $Γ=1.7$ and back again. The flare is produced in the X-ray corona, the lack of any optical or UV variability being consistent with a constant accretion rate. Simultaneous XMM-Newton and NuSTAR observations were performed, $1-3$ days after the flare peak and during the decline phase. These caught PDS 456 in a bright, bare state, where no disc wind absorption features are apparent. The hard X-ray spectrum shows a high energy roll-over, with an e-folding energy of $E_{\rm fold}=51^{+11}_{-8}$ keV. The deduced coronal temperature, of $kT=13$ keV, is one of the coolest measured in any AGN and PDS 456 lies well below the predicted pair annihilation line in X-ray corona. The spectral variability, becoming softer when fainter following the flare, is consistent with models of cooling X-ray coronae. Alternatively, an increase in a non-thermal component could contribute towards the hard X-ray flare spectrum.
description: 18 pages, 16 figures, accepted for publication in MNRAS
From 3-geometry transition amplitudes to graviton states
Creators: name: Mattei, Federico
name: Rovelli, Carlo
name: Speziale, Simone
name: Testa, Massimo
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In various background independent approaches, quantum gravity is defined in terms of a field propagation kernel: a sum over paths interpreted as a transition amplitude between 3-geometries, expected to project quantum states of the geometry on the solutions of the Wheeler-DeWitt equation. We study the relation between this formalism and conventional quantum field theory methods. We consider the propagation kernel of 4d Lorentzian general relativity in the temporal gauge, defined by a conventional formal Feynman path integral, gauge fixed a\' la Fadeev--Popov. If space is compact, this turns out to depend only on the initial and final 3--geometries, while in the asymptotically flat case it depends also on the asymptotic proper time. We compute the explicit form of this kernel at first order around flat space, and show that it projects on the solutions of all quantum constraints, including the Wheeler-DeWitt equation, and yields the correct vacuum and n-graviton states. We also illustrate how the Newtonian interaction is coded into the propagation kernel, a key open issue in the spinfoam approach.
description: 18 pages
Searching For Integrated Sachs-Wolfe Effect Beyond Temperature Anisotropies: CMB E-mode Polarization-Galaxy Cross Correlation
Creators: name: Cooray, Asantha
name: Melchiorri, Alessandro
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The cross-correlation between cosmic microwave background (CMB) temperature anisotropies and the large scale structure (LSS) traced by the galaxy distribution, or sources at different wavelengths, is now well known. This correlation results from the integrated Sachs-Wolfe (ISW) effect in CMB anisotropies generated at late times due to the dark energy component of the Universe. In a reionized universe, the ISW quadrupole rescatters and contributes to the large-scale polarization signal. Thus, in principle, the large-scale polarization bump in the E-mode should also be correlated with the galaxy distribution. Unlike CMB temperature-LSS correlation that peaks for tracers at low redshifts this correlation peaks mostly at redshifts between 1 and 3. Under certain conditions, mostly involving a low optical depth to reionization, if the Universe reionized at a redshift around 6, the cross polarization-source signal is marginally detectable, though challenging as it requires all-sky maps of the large scale structure at redshifts between 1 and 3. If the Universe reionized at a redshift higher than 10, it is unlikely that this correlation will be detectable even with no instrumental noise all-sky maps. While our estimates do not guarantee a detection unknown physics related to the dark energy as well as still uncertain issues related to the large angular scale CMB and polarization anisotropies may motivate attempts to measure this correlation using upcoming CMB polarization E-mode maps.
description: 13 pages; 3 figure panels, JCAP submitted
On the Outage Performance of SWIPT-NOMA-CRS with imperfect SIC and CSI
Creators: name: Kara, Ferdi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, a non-orthogonal multiple access based cooperative relaying system (NOMA-CRS) is considered to increase spectral efficiency. Besides, the simultaneous wireless information and power transfer (SWIPT) is proposed for the relay in NOMA-CRS. In SWIPT-NOMA-CRS, three different energy harvesting (EH) protocols, power sharing (PS), time sharing (TS) and ideal protocols are implemented. The outage performances of the SWIPT-NOMA-CRS are studied for all three EH protocols. In the analysis, to represent practical/reasonable scenarios, imperfect successive interference canceler (SIC) and imperfect channel state information (CSI) are taken into consideration. The derived outage probability (OP) expressions are validated via computer simulations. Besides, the OP for the benchmark scheme, NOMA-CRS without EH, is also derived under imperfect SIC and CSI. Based on extensive simulations, it is revealed that the SWIPT-NOMA-CRS outperforms NOMA-CRS without EH. Finally, the effects of all parameters on the outage performance of the SWIPT-NOMA-CRS are discussed and for the given scenarios, the optimum PS factor, TS factor and power allocation coefficients are demonstrated.
description: Accepted for publication in TURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES
ҲУҚУҚБУЗАРЛИКЛАР ПРОФИЛАКТИКАСИДА ФУҚАРОЛАРНИНГ ХУҚУҚИЙ ОНГИ ВА ХУҚУҚИЙ МАДАНИЯТИНИ ЮКСАЛТИРИШНИНГ АСОСИЙ ХУСУСИЯТЛАРИ.
Creators: name: Умматов, Мамарасул
name: Анваржонов, Зикрилло
Publisher: name: Zenodo
Year: 2024

description: Ушбу мақолада Ҳуқуқбузарликлар прафилактикасида фуқароларнинг хуқуқий онги ва хуқуқий маданиятини юксалтиришнинг асосий хусусиятлари тўғрисида фикр юритилган ҳамда ушбу фаолият юзасидан кўплаб тушунчаларга таьриф берилган.
Cellular Computing and Least Squares for partial differential problems parallel solving
Creators: name: Fressengeas, Nicolas
name: Frezza-Buet, Hervé
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This paper shows how partial differential problems can be solved thanks to cellular computing and an adaptation of the Least Squares Finite Elements Method. As cellular computing can be implemented on distributed parallel architectures, this method allows the distribution of a resource demanding differential problem over a computer network.