cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A semiparametric spatial dynamic model
Creators: name: Sun, Yan
name: Yan, Hongjia
name: Zhang, Wenyang
name: Lu, Zudi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Stimulated by the Boston house price data, in this paper, we propose a semiparametric spatial dynamic model, which extends the ordinary spatial autoregressive models to accommodate the effects of some covariates associated with the house price. A profile likelihood based estimation procedure is proposed. The asymptotic normality of the proposed estimators are derived. We also investigate how to identify the parametric/nonparametric components in the proposed semiparametric model. We show how many unknown parameters an unknown bivariate function amounts to, and propose an AIC/BIC of nonparametric version for model selection. Simulation studies are conducted to examine the performance of the proposed methods. The simulation results show our methods work very well. We finally apply the proposed methods to analyze the Boston house price data, which leads to some interesting findings.
description: Published in at http://dx.doi.org/10.1214/13-AOS1201 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
An ion species model for positive ion sources - part I description of the model
Creators: name: Surrey, E
name: Holmes, A J T
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A one dimensional model of the magnetic multipole volume plasma source has been developed for use in intense ion/neutral atom beam injectors. The model uses plasma transport coefficients for particle and energy flow to create a detailed description of the plasma parameters along an axis parallel to that of the extracted beam. Primarily constructed for applications to neutral beam injection systems on fusion devices, the model concentrates on the hydrogenic isotopes but can be extended to any gas by substitution of the relevant masses, cross sections and rate coefficients. The model considers the flow of fast ionizing electrons that create the ratios of the three hydrogenic isotope ion species, H+, H2 +, H3 + (and similarly for deuterium and tritium) as they flow towards the beam extraction electrode, together with the production of negative hydrogenic ions through volume processes. The use of detailed energy balance in the discharge allows the determination of the fraction of the gas density that is in an atomic state and also the gas temperature as well as the electron temperatures and plasma potential. Comparisons are made between the results of the model and experimental measurements in deuterium from a number of different filament driven sources used on beam heating facilities.
description: 23 pages, 10 figures. This is an author-created, un-copyedited version of an article submitted for publication in Plasma Sources Science & Technology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it
Characterizing a non-equilibrium phase transition on a quantum computer
Creators: name: Chertkov, Eli
name: Cheng, Zihan
name: Potter, Andrew C.
name: Gopalakrishnan, Sarang
name: Gatterman, Thomas M.
name: Gerber, Justin A.
name: Gilmore, Kevin
name: Gresh, Dan
name: Hall, Alex
name: Hankin, Aaron
name: Matheny, Mitchell
name: Mengle, Tanner
name: Hayes, David
name: Neyenhuis, Brian
name: Stutz, Russell
name: Foss-Feig, Michael
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: At transitions between phases of matter, physical systems can exhibit universal behavior independent of their microscopic details. Probing such behavior in quantum many-body systems is a challenging and practically important problem that can be solved by quantum computers, potentially exponentially faster than by classical computers. In this work, we use the Quantinuum H1-1 quantum computer to realize a quantum extension of a simple classical disease spreading process that is known to exhibit a non-equilibrium phase transition between an active and absorbing state. Using techniques such as qubit-reuse and error avoidance based on real-time conditional logic (utilized extensively in quantum error correction), we are able to implement large instances of the model with $73$ sites and up to $72$ circuit layers, and quantitatively determine the model's critical properties. This work demonstrates how quantum computers capable of mid-circuit resets, measurements, and conditional logic enable the study of difficult problems in quantum many-body physics: the simulation of open quantum system dynamics and non-equilibrium phase transitions.
description: 7 pages, 4 figures; supplement 18 pages, 19 figures, 1 table; Updated acknowledgements
The two-particle two-slit experiment
Creators: name: Sancho, Pedro
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Identical two-particle interferometry provides a scenario where interference and exchange effects manifest at once. We present a detailed calculation of the detection patterns in the two-particle two-slit experiment by extending Feynman's Gaussian slit approach to multi-mode states. We show the existence of two regimes depending on the mode distributions. In one of them we find a novel behavior for bosons, with detection patterns almost equal to those of distinguishable particles although the overlapping is large. As a byproduct of our analysis we conclude that the interaction at the diffraction grating is an efficient method to increase the initial overlapping. We propose a scheme, within the reach of present day technology, to experimentally verify our results.
Zeta Function Regularization of Photon Polarization Tensor for a Magnetized Vacuum
Creators: name: Chao, Jingyi
name: Yu, Lang
name: Huang, Mei
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this paper, we have developed a systematic technique to regularize double summations of Landau levels and analytically evaluated the photon vacuum polarization at an external magnetic field. The final results are described by Lerch transcendent $Φ(z,s,v)$ or its $z$-derivation. We have found that the tensor of vacuum polarization is split into not only longitudinal and transverse parts but also another mixture component. We have obtained a complete expression of the magnetized photon vacuum polarization at any kinematic regime and any strength of magnetic field for the first time. In the weak $B$-fields, after canceling out a logarithmic counter term, all three scalar functions are limited to the usual photon polarization tensor without turning on magnetic field. In the strong $B$-fields, the calculations under Lowest Landau Level approximation are only valid at the region $M^2\gg q_{\shortparallel}^2$, but not correct while $q_{\shortparallel}^2\gg M^2$, where, an imaginary part has been missed. It reminds us, a recalculation of the gap equation under a full consideration of all Landau Levels is necessary in the next future.
description: 7 pages. One severe mistake has been corrected and two references have been updated
Molecular gas heating mechanisms, and star formation feedback in merger/s tarbursts: NGC 6240 and Arp 193 as case studies
Creators: name: Papadopoulos, Padelis P.
name: Zhang, Zhi-Yu
name: Xilouris, E. M.
name: Weiss, Axel
name: van der Werf, Paul
name: Israel, Frank. P.
name: Greve, Thomas. R.
name: Isaak, Kate G.
name: Gao, Yu
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We used the SPIRE/FTS instrument aboard the Herschel Space Observatory (HSO) to obtain the Spectral Line Energy Distributions (SLEDs) of CO from J=4-3 to J=13-12 of Arp 193 and NGC 6240, two classical merger/starbursts selected from our molecular line survey of local Luminous Infrared Galaxies (LIRGs: L_{IR}>=10^{11} L_{sol}). The high-J CO SLEDs are then combined with ground-based low-J CO, {13}CO, HCN, HCO+, CS line data and used to probe the thermal and dynamical states of their large molecular gas reservoirs. We find the two CO SLEDs strongly diverging from J=4-3 onwards, with NGC6240 having a much higher CO line excitation than Arp193, despite their similar low-J CO SLEDs and L_{FIR}/L_{CO,1-0}, L_{HCN}/L_{CO} (J=1-0) ratios (proxies of star formation efficiency and dense gas mass fraction). In Arp193, one of the three most extreme starbursts in the local Universe, the molecular SLEDs indicate a small amount ~(5-15)% of dense gas (n>=10^{4}cm^{-3}) unlike NGC6240 where most of the molecular gas (~(60-70)%) is dense n~(10^4-10^5)cm^{-3}. Strong star-formation feedback can drive this disparity in their dense gas mass fractions, and also induce extreme thermal and dynamical states for the molecular gas.In NGC6240, and to a lesser degree in Arp193, we find large molecular gas masses whose thermal states cannot be maintained by FUV photons from Photon Dominated Regions (PDRs). We argue that this may happen often in metal-rich merger/starbursts, strongly altering the initial conditions of star formation. ALMA can now directly probe these conditions across cosmic epoch, and even probe their deeply dust-enshrouded outcome, the stellar IMF averaged over galactic evolution.
description: 54 pages, 19 figures, accepted for publication in The Astrophysical Journal
Same Initial States Attack in Yang et al.'s Quantum Private Comparison Protocol and the Improvement
Creators: name: Liu, Wen-Jie
name: Liu, Chao
name: Liu, Zhi-Hao
name: Liu, Jing-Fa
name: Geng, Huan-Tong
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In Yang et al.'s literatures (J. Phys. A: Math. 42, 055305, 2009; J. Phys. A:Math. 43, 209801, 2010), a quantum private comparison protocol based on Bell states and hash function is proposed, which aims to securely compare the equality of two participants' information with the help of a dishonest third party (TP). However, this study will point out their protocol cannot resist a special kind of attack, TP's same initial states attack, which is presented in this paper. That is, the dishonest TP can disturb the comparison result without being detected through preparing the same initial states. Finally, a simple improvement is given to avoid the attack.
description: 7pages,1 figure
Quasi-ordinary singularities: tree model, discriminant and irreducibility
Creators: name: Barroso, Evelia R. García
name: Gwozdziewicz, Janusz
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Let $f(Y)\in K[[X_1,\dots,X_d]][Y]$ be a quasi-ordinary Weierstrass polynomial with coefficients in the ring of formal power series over an algebraically closed field of characteristic zero. In this paper we study the discriminant $D_f$ of $f(Y)-V$, where $V$ is a new variable. We show that the Newton polytope of $D_f$ depends only on contacts between the roots of $f(Y)$. Then we prove that $f(Y)$ is irreducible if and only if the Newton polytope of $D_f$ satisfies some arithmetic conditions. Finally we generalize these results to quasi-ordinary power series.
An ion species model for positive ion sources - part II analysis of hydrogen isotope effects
Creators: name: Surrey, E
name: Holmes, A J T
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A one dimensional model of the magnetic multipole volume plasma source has been developed for application to intense ion/neutral atom beam injectors. The model uses plasma transport coefficients for particle and energy flow to create a detailed description of the plasma parameters along an axis parallel to that of the extracted beam. In this paper the isotopic modelling of positive hydrogenic ions is considered and compared with experimental data from the neutral beam injectors of the Joint European Torus. The use of the code to gain insights into the processes contributing to the ratios of the ionic species is demonstrated and the conclusion is drawn that 75% of the atomic ion species arises from ionization of dissociated molecules and 25% from dissociation of the molecular ions. However whilst the former process is independent of the filter field, the latter is sensitive to the change in distribution of fast and thermal electrons produced by the magnetic filter field and an optimum combination of field strength and depth exists. Finally the code is used to predict the species ratios for the JET source operating in tritium and hence the neutral beam power injected into the plasma in the JET tritium campaign planned for 2016.
description: 17 pages, 18 figures. This is an author-created, un-copyedited version of an article submitted for publication in Plasma Sources Science & Technology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it
Exploring the Registration of Remote Sensing Images using HSI–KAZE in Graphical Units
Creators: name: Ordóñez, Álvaro
name: B. Heras, Dora
name: Argüello, Francisco
Publisher: name: Zenodo
Year: 2019
Subjects: image registration
hyperspectral data
KAZE features
remote sensing
CUDA
GPU

description: Registration of hyperspectral remote sensing images is a common task in many image processing applications such as land use classification, environmental monitoring and change detection. The images to be registered present differences as a consequence of being obtained from different points of view, differences in the number of spectral bands captured by the sensors, in illumination and intensity, and also changes in the objects present in the images, among others. Feature-based methods as HSI-KAZE are more efficient at registering than area-based methods when the images are very rich in geometrical details, as it is the case for remote sensing images. But they present, nevertheless, the problem of being computationally more costly because the number of distinctive points to be calculated for these images is high. HSI-KAZE is a method to register hyperspectral remote sensing images based on KAZE features but considering the spectral information. In this work, a robust and efficient implementation of this method on programmable GPUs is presented.
description: This work was supported in part by the Consellería de Educación, Universidade e Formación Profesional [grant numbers GRC2014/008, ED431C 2018/19, and ED431G/08] and Ministerio de Economía y Empresa, Government of Spain [grant number TIN2016-76373-P] and by Junta de Castilla y Leon - ERDF (PROPHET Project) [grant number VA082P17]. All are co-funded by the European Regional Development Fund (ERDF). The work of Álvaro Ordóñez was also supported by Ministerio de Ciencia, Innovación y Universidades, Government of Spain, under a FPU Grant [grant numbers FPU16/03537 and EST18/00602].
Presentations for quaternionic $S$-unit groups
Creators: name: Chinburg, Ted
name: Friedlander, Holley
name: Howe, Sean
name: Kosters, Michiel
name: Singh, Bhairav
name: Stover, Matthew
name: Zhang, Ying
name: Ziegler, Paul
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: The purpose of this paper is to give presentations for projective $S$-unit groups of the Hurwitz order in Hamilton's quaternions over the rational field $\mathbb{Q}$. To our knowledge, this provides the first explicit presentations of an $S$-arithmetic lattice in a semisimple Lie group with $S$ large. In particular, we give presentations for groups acting irreducibly and cocompactly on a product of Bruhat--Tits trees. We also include some discussion and experimentation related to the congruence subgroup problem, which is open when $S$ contains at least two odd primes. In the appendix, we provide code that allows the reader to compute presentations for an arbitrary finite set $S$.
Aplicacion de un modelo bioeconomico a la pesqueria de atunaleta amarilla Thunnus albacares en el Oceano Pacifico Oriental /
Creators: name: Dreyfus Leon, Michel Jules
Publisher: name: Universidad Autónoma de Baja California.
Year: 2022
Subjects: subject: SH351 .Y43 D74 1988

description: Se presenta información de captura de Atún aleta amarilla, Tunnus Albecares, en el ARCAAA de 1971 a 1987, así es como el número de embarcaciones que han operado en esta área de 1976 a 1987.
A model for the infrared-radio correlation of main-sequence galaxies at GHz frequencies and its variation on redshift and stellar mass
Creators: name: Schober, J.
name: Sargent, M. T.
name: Klessen, R. S.
name: Schleicher, D. R. G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The infrared-radio correlation (IRRC) of star-forming galaxies can be used to estimate their star formation rate (SFR) based on the radio continuum luminosity at MHz-GHz frequencies. For its application in future deep radio surveys, it is crucial to know whether the IRRC persists at high redshift z. Previous works have reported that the 1.4 GHz IRRC correlation of star-forming galaxies is nearly z-invariant up to z=4, but depends strongly on stellar mass M. This should be taken into account for SFR calibrations based on radio luminosity. To understand the physical cause behind the M dependence of the IRRC and its properties at higher z, we constructed a phenomenological model for galactic radio emission. Our model is based on a dynamo-generated magnetic field and a steady-state cosmic ray population. It includes a number of free parameters as well as observed scaling relations. We find that the resulting spread of the infrared-to-radio luminosity ratio, q(z, M), with respect to M is mostly determined by the scaling of the galactic radius with M, while the absolute value of the q(z, M) curves decreases with more efficient conversion of supernova energy to magnetic fields and cosmic rays. Decreasing the slope of the cosmic ray injection spectrum, aCR, results in higher radio luminosity, decreasing the absolute values of the q(z, M) curves. Our model reproduces the observed dependence of the IRRC on M and z when the efficiency of supernova-driven turbulence is 5%, 10% of the kinetic energy is converted into magnetic energy, and aCR = 3. For galaxies with intermediate to high M (10^9.5-10^11 M_sun), our model results in an IRRC that is nearly independent of z. For galaxies with lower M (M=10^8.5 M_sun), we find that the IR-to-radio flux ratio increases with increasing redshift. This matches the observational data in that mass bin which currently, however, only extends to z~1.5.
description: 20 pages, 18 figures
GHz photon-activated hopping between localized states in a silicon quantum dot
Creators: name: Ferrus, T.
name: Rossi, A.
name: Andreev, A.
name: Kodera, T.
name: Kambara, T.
name: Lin, W.
name: Oda, S.
name: Williams, D. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We discuss the effects of gigahertz photon irradiation on a degenerately phosphorous-doped silicon quantum dot, in particular, the creation of voltage offsets on gate leads and the tunneling of one or two electrons via Coulomb blockade lifting at 4.2K. A semi-analytical model is derived that explains the main features observed experimentally. Ultimately both effects may provide an efficient way to optically control and operate electrically isolated structures by microwave pulses. In quantum computing architectures, these results may lead to the use of microwave multiplexing to manipulate quantum states in a multi-qubit configuration.
description: New Journal of Physics, in press
IMPACT LOAD RESPONSE OF INCLINED ALUMINUM HONEYCOMB STRUCTURE
Creators: name: AYANTU GEMECHU TUMSA
Publisher: name: Zenodo
Year: 2021

description: Honeycomb cellular structures, due to their lightweight and high-energy absorbing capacity, has been used extensively as energy absorbers or cushions to resist external loads. This research work investigates application of inclined aluminum honeycomb structures to shield and protect vital infrastructures. Proposed honeycomb structure absorbs dynamic energy created due to extreme loading and extends life cycle of shielded parent infrastructures. ANSYS Mechanical APDL software used to develop 3D model of honeycomb structure reported from literature and LS-DYNA non-linear finite element software Used for validation and parametric analysis. Further parametric studies on angle of inclination, unit cell geometry, wall thickness, and specimen size and specimen depth performed to optimize energy absorption capacity of honeycomb structure against impact load.
Additional file 2 of Development of a 3D functional assay and identification of biomarkers, predictive for response of high-grade serous ovarian cancer (HGSOC) patients to poly-ADP ribose polymerase inhibitors (PARPis): targeted therapy
Creators: name: Sheta, Razan
name: Bachvarova, Magdalena
name: Plante, Marie
name: Marie-Claude Renaud
name: Sebastianelli, Alexandra
name: Gregoire, Jean
name: Jamilet Miranda Navarro
name: Perez, Ricardo Bringas
name: Jean-Yves Masson
name: Bachvarov, Dimcho
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 2. Primers used for qPCR. All primers used for qPCR experiments performed in the study. The table includes a list of the genes primers were designed for, the perimers primer melting temperature (Tm), and the design of the forward and reverse primers.
Improving the spin-down limits of the continuous gravitational waves emitted from rotating triaxial pulsars
Creators: name: Pathak, Dhruv
name: Chatterjee, Debarati
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The spin-down limit of the continuous gravitational wave strain from pulsars assumed to be triaxial stars rotating about a principal moment of inertia axis depends upon the value of the intrinsic spin frequency derivative of the pulsar, among other parameters. In order to get more accurate intrinsic spin frequency derivative values, dynamical effects contributing to the measured spin frequency derivative values must be estimated via more realistic approaches. In this work, we calculated improved values for the spin-down limit of the continuous gravitational wave strain (assuming that pulsars are triaxial stars rotating about a principal moment of inertia axis) for a set of 237 pulsars for which a targeted search for continuous gravitational waves was recently carried out by the LIGO-Virgo-KAGRA (LVK) Collaboration. We used `GalDynPsr', a Python-based public package, to calculate more realistic values for the intrinsic spin frequency derivatives and, consequently, we get more realistic values of the spin-down limit. The realistic values that we obtain for the intrinsic spin frequency derivatives can also provide a valuable contribution to improving the sensitivity of searches for continuous gravitational waves from known pulsars.
description: 9 pages, accepted in Astronomy & Astrophysics (A&A)
Exact multi-instantons in topological string theory
Creators: name: Gu, Jie
name: Marino, Marcos
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Topological string theory has multi-instanton sectors which lead to non-perturbative effects in the string coupling constant and control the large order behavior of the perturbative genus expansion. As proposed by Couso, Edelstein, Schiappa and Vonk, these sectors can be described by a trans-series extension of the BCOV holomorphic anomaly equations. In this paper we find exact, closed form solutions for these multi-instanton trans-series in the case of local Calabi-Yau manifolds. The resulting multi-instanton amplitudes turn out to be very similar to the eigenvalue tunneling amplitudes of matrix models. Their form suggests that the flat coordinates of the Calabi-Yau manifold are naturally quantized in units of the string coupling constant, as postulated in large $N$ dualities. Based on our results we obtain a general picture for the resurgent structure of the topological string in the local case, which we illustrate with explicit calculations in the case of local $\mathbb{P}^2$.
description: 36 pages, 3 figures; typos corrected, references added
Modelo de valoración económica del conocimiento tradicional del medio marino con respecto a su aprovechamiento en la investigación farmacéutica /
Creators: name: Narchi Narchi, Nemer Eduardo
Publisher: name: Universidad Autónoma de Baja California.
Year: 2022
Subjects: subject: Microbiología farmaceutica||Microbiología farmaceutica Aspectos económicos||Microbiología farmaceutica Recursos Marinos Aspectos económicos||Oceanología Tésis
subject: QR46.5 N37 2005

description: La bioprospección es una técnica utilizada para la exploración, extracción y ensayo de las unidades biológicas en busca de compuestos químicos, genes y/o cualquier otra parte de un organismo que prometa beneficios económicos substanciales al servir como base en el desarrollo de productos dentro de las industrias alimenticia, agroforestal, farmacéutica, agroquímica, agraria, biotecnológica, veterinaria y cosmética.
Additional file 1 of Development of a 3D functional assay and identification of biomarkers, predictive for response of high-grade serous ovarian cancer (HGSOC) patients to poly-ADP ribose polymerase inhibitors (PARPis): targeted therapy
Creators: name: Sheta, Razan
name: Bachvarova, Magdalena
name: Plante, Marie
name: Marie-Claude Renaud
name: Sebastianelli, Alexandra
name: Gregoire, Jean
name: Jamilet Miranda Navarro
name: Perez, Ricardo Bringas
name: Jean-Yves Masson
name: Bachvarov, Dimcho
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1. Antibodies used for Western Blots, immunohistochemistry and immunofluorescence. The Table includes list and detailed description of the antibodies used in the study, including their dilutions and incubation periods applied, for WB, IHC and IF.
Modelling the `outliers' track of the radio--X-ray correlation in X-ray binaries based on disc-corona model
Creators: name: Huang, Chang-Yin
name: Wu, Qingwen
name: Wang, Ding-Xiong
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The universal radio--X-ray correlation (F_R \propto F_X^{b}, b~0.5-0.7) has been found for a sample of black-hole X-ray binaries (BHBs) in their low/hard states, which can roughly be explained by the coupled model of jet and radiatively inefficient advection dominated accretion flow. However, more and more `outliers' were found in last few years, which evidently deviate from the universal radio-X-ray correlation and usually show a much steeper correlation with an index of ~1.4. Based on simple physical assumptions, the radiatively efficient accretion flows are speculated to exist in these `outliers'. In this work, we test this issue by modelling the `outliers' track based on the radiatively efficient disc-corona model and the hybrid jet model. We find that our model predicts a steeper radio--X-ray correlation with slopes >~1.2 for the typical viscosity parameter of α~0.05-0.2. In particular, the slope is ~1.4 for the case of α~0.1, which is consistent with the observational results of H1743-322 very well. Our results suggest that the `outliers' track may be regulated by the disc-corona model.
description: 7 pages, 3 figures, accepted for publication in MNRAS
Three new X-ray emitting sdO stars discovered with Chandra
Creators: name: La Palombara, N.
name: Esposito, P.
name: Mereghetti, S.
name: Tiengo, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: X-ray observations of sdO stars are a useful tool to investigate their properties, but so far only two sdO stars were detected at X-rays. We observed a complete flux-limited sample of 19 sdO stars with the Chandra HRC-I camera to measure the count rate of the detected sources or to set a tight upper limit on it for the undetected sources. We obtained a robust detection of BD+37 1977 and Feige 34 and a marginal detection of BD+28 4211. The estimated luminosity of BD+37 1977 is above 10^31 erg/s, which is high enough to suggest the possible presence of an accreting compact companion. This possibility is unlikely for all the other targets (both detected and undetected), since in their case L_X < 10^30 erg/s. On the other hand, for all 19 targets the estimated value of L_X (or its upper limit) implies an X-ray/bolometric flux ratio that agrees with log(L_X/L_bol) = -6.7 +/- 0.5, which is the range of values typical of main-sequence and giant O stars. Therefore, for Feige 34 and BD+28 4211 the observed X-ray flux is most probably due to intrinsic emission. The same is possibile for the 16 undetected stars.
description: 6 pages. Accepted for publication by Astronomy and Astrophysics
Width of the chaotic layer: maxima due to marginal resonances
Creators: name: Shevchenko, Ivan I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Modern theoretical methods for estimating the width of the chaotic layer in presence of prominent marginal resonances are considered in the perturbed pendulum model of nonlinear resonance. The fields of applicability of these methods are explicitly and precisely formulated. The comparative accuracy is investigated in massive and long-run numerical experiments. It is shown that the methods are naturally subdivided in classes applicable for adiabatic and non-adiabatic cases of perturbation. It is explicitly shown that the pendulum approximation of marginal resonance works good in the non-adiabatic case. In this case, the role of marginal resonances in determining the total layer width is demonstrated to diminish with increasing the main parameter λ(equal to the ratio of the perturbation frequency to the frequency of small-amplitude phase oscillations on the resonance). Solely the "bending effect" is important in determining the total amplitude of the energy deviations of the near-separatrix motion at λ> 7. In the adiabatic case, it is demonstrated that the geometrical form of the separatrix cell can be described analytically quite easily by means of using a specific representation of the separatrix map. It is shown that the non-adiabatic (and, to some extent, intermediary) case is most actual, in comparison with the adiabatic one, for the physical or technical applications that concern the energy jumps in the near-separatrix chaotic motion.
description: 17 pages, 2 figures
Container structure of alpha alpha Lambda clusters in $_Λ^9$Be
Creators: name: Funaki, Y.
name: Yamada, T.
name: Hiyama, E.
name: Zhou, B.
name: Ikeda, K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: New concept of clustering is discussed in $Λ$ hypernuclei using a new-type microscopic cluster model wave function, which has a structure that constituent clusters are confined in a container, whose size is a variational parameter and which we refer to as Hyper-Tohsaki-Horiuchi-Schuck-Röpke (Hyper-THSR) wave function. By using the Hyper-THSR wave function, $2α+ Λ$ cluster structure in ${^{9}_Λ{\rm Be}}$ is investigated. We show that full microscopic solutions in the $2α+ Λ$ cluster system, which are given as $2α+ Λ$ Brink-GCM wave functions, are almost perfectly reproduced by the single configurations of the Hyper-THSR wave function. The squared overlaps between the both wave functions are calculated to be $99.5$%, $99.4$%, and $97.7$% for $J^π=0^+$, $2^+$, and $4^+$ states, respectively. We also simulate the structural change by adding the $Λ$ particle, by varying the $ΛN$ interaction artificially. As the increase of the $ΛN$ interaction, the $Λ$ particle gets to move more deeply inside the core and invokes strongly the spatial core shrinkage, and accordingly distinct localized $2α$ clusters appear in the nucleonic intrinsic density, though in ${^{8}{\rm Be}}$ rather gaslike $2α$-cluster structure is shown. The origin of the localization is associated with the strong effect of Pauli principle. We conclude that the container picture of the $2α$ and $Λ$ clusters is essential in understanding the cluster structure in ${^{9}_Λ{\rm Be}}$, in which the very compact spatial localization of clusters is shown in the density distribution.
description: 14 pages, 4 figures, 3 tables, submitted to PTEP
Aplicación de un modelo bioeconómico al estudio de la pesquería del camarón en Puerto Peñasco, Sonora /
Creators: name: Alonso Aleman, Minerva Nohemi
Publisher: name: Universidad Autónoma de Baja California.
Year: 2022
Subjects: subject: SH380.62.S65 A56 1989

description: El presente estudio analiza la situación bioeconómica de las pesquerías artesanal e industrial en Puerto Peñasco.
Direct dark matter searches with the full data set of XMASS-I
Creators: name: XMASS Collaboration
name: Abe, K.
name: Hiraide, K.
name: Kato, N.
name: Moriyama, S.
name: Nakahata, M.
name: Sato, K.
name: Sekiya, H.
name: Suzuki, T.
name: Suzuki, Y.
name: Takeda, A.
name: Yang, B. S.
name: Kim, N. Y.
name: Kim, Y. D.
name: Kim, Y. H.
name: Itow, Y.
name: Martens, K.
name: Mason, A.
name: Yamashita, M.
name: Miuchi, K.
name: Takeuchi, Y.
name: Lee, K. B.
name: Lee, M. K.
name: Fukuda, Y.
name: Ogawa, H.
name: Ichimura, K.
name: Kishimoto, Y.
name: Nishijima, K.
name: Fushimi, K.
name: Xu, B. D.
name: Kobayashi, K.
name: Nakamura, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Various WIMP dark matter searches using the full data set of XMASS-I, a single-phase liquid xenon detector, are reported in this paper. Stable XMASS-I data taking accumulated a total live time of 1590.9 days between November 20, 2013 and February 1, 2019 with an analysis threshold of ${\rm 1.0\,keV_{ee}}$. In the latter half of data taking a lower analysis threshold of ${\rm 0.5\,keV_{ee}}$ was also available through a new low threshold trigger. Searching for a WIMP signal in the detector's 97~kg fiducial volume yielded a limit on the WIMP-nucleon scattering cross section of ${\rm 1.4\times 10^{-44}\, cm^{2}}$ for a ${\rm 60\,GeV/c^{2}}$ WIMP at the 90$\%$ confidence level. We also searched for WIMP induced annual modulation signatures in the detector's whole target volume, containing 832~kg of liquid xenon. For nuclear recoils of a ${\rm 8\,GeV/c^{2}}$ WIMP this analysis yielded a 90\% CL cross section limit of ${\rm 2.3\times 10^{-42}\, cm^{2}}$. At a WIMP mass of ${\rm 0.5\, GeV/c^{2}}$ the Migdal effect and Bremsstrahlung signatures were evaluated and lead to 90\% CL cross section limits of ${\rm 1.4\times 10^{-35}\, cm^{2}}$ and ${\rm 1.1\times 10^{-33}\, cm^{2}}$ respectively.
Higher-dimensional orbital angular momentum based quantum key distribution with mutually unbiased bases
Creators: name: Mafu, Mhlambululi
name: Dudley, Angela
name: Goyal, Sandeep
name: Giovannini, Daniel
name: McLaren, Melanie
name: Padgett, Miles J.
name: Konrad, Thomas
name: Petruccione, Francesco
name: Lütkenhaus, Norbert
name: Forbes, Andrew
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present an experimental study of higher-dimensional quantum key distribution protocols based on mutually unbiased bases, implemented by means of photons carrying orbital angular momentum. We perform (d+1) mutually unbiased measurements in a classical prepare and measure scheme and on a pair of entangled photons for dimensions ranging from d = 2 to 5. In our analysis, we pay attention to the detection efficiency and photon pair creation probability. As security measures, we determine from experimental data the average error rate, the mutual information shared between the sender and receiver and the secret key generation rate per photon. We demonstrate that increasing the dimension leads to an increased information capacity as well as higher key generation rates per photon up to a dimension of d = 4.
description: Published in Phys. Rev. A
Plea for the use of the exact Stirling formula in statistical mechanics
Creators: name: Lairez, Didier
Publisher: name: arXiv
Year: 2022
Subjects: subject: Classical Physics (physics.class-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In statistical mechanics, the generally called Stirling approximation is actually an approximation of Stirling's formula. In this article, it is shown that the term that is dropped is in fact the one that takes fluctuations into account. The use of the Stirling's exact formula forces us to reintroduce them into the already proposed solutions of well-know puzzles such as the extensivity paradox or the Gibbs' paradox of joining two volumes of identical gas. This amendment clearly results in a gain in consistency and rigor of these solutions.
Stellar laboratories III. New Ba V, Ba VI, and Ba VII oscillator strengths and the barium abundance in the hot white dwarfs G191-B2B and RE0503-289
Creators: name: Rauch, T.
name: Werner, K.
name: Quinet, P.
name: Kruk, J. W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: For the spectral analysis of high-resolution and high-signal-to-noise (S/N) spectra of hot stars, state-of-the-art non-local thermodynamic equilibrium (NLTE) model atmospheres are mandatory. These are strongly dependent on the reliability of the atomic data that is used for their calculation. Reliable Ba V - VII oscillator strengths are used to identify Ba lines in the spectra of the DA-type white dwarf G191-B2B and the DO-type white dwarf RE0503-289 and to determine their photospheric Ba abundances. We newly calculated Ba V - VII oscillator strengths to consider their radiative and collisional bound-bound transitions in detail in our NLTE stellar-atmosphere models for the analysis of Ba lines exhibited in high-resolution and high-S/N UV observations of G191-B2B and RE0503-289. For the first time, we identified highly ionized Ba in the spectra of hot white dwarfs. We detected Ba VI and Ba VII lines in the Far Ultraviolet Spectroscopic Explorer (FUSE) spectrum of RE0503-289. The Ba VI / Ba VII ionization equilibrium is well reproduced with the previously determined effective temperature of 70000 K and surface gravity of $\log g = 7.5$. The Ba abundance is $3.5 \pm 0.5 \times 10^{-4}$ (mass fraction, about 23000 times the solar value). In the FUSE spectrum of G191-B2B, we identified the strongest Ba VII line (at 993.41 Å) only, and determined a Ba abundance of $4.0 \pm 0.5 \times 10^{-6}$ (about 265 times solar). Reliable measurements and calculations of atomic data are a pre-requisite for stellar-atmosphere modeling. Observed Ba VI - VII line profiles in two white dwarfs' (G191-B2B and RE0503-289) far-ultraviolet spectra were well reproduced with our newly calculated oscillator strengths. This allowed to determine the photospheric Ba abundance of these two stars precisely.
description: 36 pages, 8 figures
ПРЕОДОЛЕНИЕ БЕСПЛОДИЯ С ИСПОЛЬЗОВАНИЕМ ВСПОМОГАТЕЛЬНЫХ РЕПРОДУКТИВНЫХ ТЕХНОЛОГИЙ
Creators: name: Худоярова, Д.Р.
name: Шопулотова, З.А.
Publisher: name: Zenodo
Year: 2024

description: Данный обзор литературы посвящен важнейшей медико-социальной проблеме современной медицины - влиянию роли бесплодия в браке на исходы программ вспомогательных репродуктивных технологий (ВРТ). На сегодняшний день в диагностике и лечении бесплодия можно обозначить целый ряд проблем, таких как отсутствие стандартных тестов для оценки фертильности, неполное знание патофизиологии бесплодия, нехватку специалистов в области репродуктологии, а также недостаток необходимых технических ресурсов; в этот список можно добавить отсутствие проверенных методов фармакотерапии.  В данном обзоре речь пойдет о развитии и эффективности ВРТ в мире и в Республике Узбекистан, о влиянии неблагоприятных факторов образа жизни на фертильность при лечении бесплодной пары, на отдаленные результаты ВРТ.
Environmental enrichment may alter the number of rats needed to achieve statistical significance
Creators: name: Eskola, Satu
name: Lauhikari, Marja
name: Voipio, Hanna-Marja
name: Laitinen, Matti
name: Nevalainen, Timo
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: Currently, environmental enrichment studies have focused on detection of differences in group means resulting from varied enrichments. The effects of enrichment procedures on variation and hence on study results have received far less attention. Within group variation in studies is directly related to adequate sample size and thus determines ethically correct number of animals to be used. The aim of this study was to evaluate the effects of enrichment items on clinical chemistry and physiological parameters of Wistar rats with the emphasis on the extent of variation. Fortyeight weaned female and male outbred Wistar rats from eight different litters were housed for five weeks in groups of four rats per cage with an aspen tube (20x12x12 em), an aspen block (6x6x6 cm) or without enrichment items (control animals). At the end of the study, adrenals and brown adipose tissues were weighed, growth calculated from initial and final body weights and the following assays were performed from serum samples: AFOS, ALAT, ASAT, LDH, GGT, Pi, Ca, cholesterol, triglycerides, ereatinine, total bilirubin, protein and corticosterone. Based on the variation detected, SOLO Power Analysis was used to calculate the smallest number of animals required (n) to detect an arbitrarily chosen 20 % difference in all means, when significance was set at p=0.05 and statistical power at 0.90. Based on the n-values, additional N-ratio (nenrichment / ncontrol) was calculated to indicate, how many times more or less animals were needed in the enrichment group in comparison to the control group. The enrichment items did not have effects on group means. However. they seemed to influence the variation and hence on the number of animals needed, with enzyme parameters being the most sensitive in this respect. This relationship between enrichment, variation and number of animals needed should be kept in mind while designing experiments with ethically correct sample size.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 26 No. 3 (1999)
The influence of the enhanced vector meson sector on the properties of the matter of neutron stars
Creators: name: Bednarek, Ilona
name: Manka, Ryszard
name: Pienkos, Monika
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: This paper gives an overview of the model of a neutron star with non-zero strangeness constructed within the framework of the nonlinear realization of the chiral $SU(3)_{L}\times SU(3)_{R}$ symmetry. The emphasis is put on the physical properties of the matter of a neutron star. The obtained solution is particularly aimed at the problem of the construction of a theoretical model of a neutron star matter with hyperons that will give high value of the maximum mass.
description: 13 pages, 17 figures
Spectrally-resolved femtosecond reflectivity relaxation dynamics in undoped SDW 122-structure iron based pnictides
Creators: name: Pogrebna, A.
name: Vujičić, N.
name: Mertelj, T.
name: Cao, G.
name: Xu, Z. A.
name: Chu, J. -H.
name: Fisher, I. R.
name: Mihailovic, D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We systematically investigate temperature- and spectrally-dependent optical reflectivity dynamics in AAs$_{2}$Fe$_{2}$, (A=Ba, Sr and Eu), iron-based superconductors parent spin-density-wave (SDW) compounds. Two different relaxation processes are identified. The behavior of the slower process, which is strongly sensitive to the magneto-structural transition, is analyzed in the framework of the relaxation-bottleneck model involving magnons. The results are compared to recent time resolved angular photoemission results (TR-ARPES) and possible alternative assignment of the slower relaxation to the magneto-structural order parameter relaxation is discussed.
Application of a mouse-mastitis model for evaluation of antigen vaccines against Staphylococcus aureus-induced mastitis
Creators: name: Mamo, Wubshet
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: The BSVS-mouse mastitis model has been shown to largely mimic boyine intramammary infection (mastitis), where bacteria penetrate through the teat canal, teat cisterns and establish in the mammary glands. The model enables study of the onset of infection and histopathological changes occurring during the development at infection in the mammary glands. Mice were immunised with recombinant antigen vaccines and thereafter were challenged with S. aureus. Vaccine-evoked serumantibody responses and protection were determined. This study demonstrates the relevance of the BSVS~mouse mastitis model for evaluation of recombinant surface-antigen vaccines against S. aureus-indueed mastitis.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 26 No. 3 (1999)