cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the physical mechanism underlying Asymptotic Safety
Creators: name: Nink, Andreas
name: Reuter, Martin
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We identify a simple physical mechanism which is at the heart of Asymptotic Safety in Quantum Einstein Gravity (QEG) according to all available effective average action-based investigations. Upon linearization the gravitational field equations give rise to an inverse propagator for metric fluctuations comprising two pieces: a covariant Laplacian and a curvature dependent potential term. By analogy with elementary magnetic systems they lead to, respectively, dia- and paramagnetic-type interactions of the metric fluctuations with the background gravitational field. We show that above 3 spacetime dimensions the gravitational antiscreening occurring in QEG is entirely due to a strong dominance of the ultralocal paramagnetic interactions over the diamagnetic ones that favor screening. (Below 3 dimensions both the dia- and paramagnetic effects support antiscreening.) The spacetimes of QEG are interpreted as a polarizable medium with a "paramagnetic" response to external perturbations, and similarities with the vacuum state of Yang-Mills theory are pointed out. As a by-product, we resolve a longstanding puzzle concerning the beta function of Newton's constant in 2+ε dimensional gravity.
description: 43 pages, 8 figures; clarifying remarks added; to appear in JHEP
Bianchi type-V dark energy model with varying EoS parameter
Creators: name: Saha, Bijan
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Physics (physics.gen-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Within the scope of an anisotropic Bianchi type-V cosmological model we have studied the evolution of the universe. The assumption of a diagonal energy-momentum tensor leads to some severe restriction on the metric functions, which on its part imposes restriction on the components of the energy momentum tensor. This model allows anisotropic matter distribution. Further using the proportionality condition that relates the shear scalar $(σ)$ in the model is proportional to expansion scalar $(\vartheta)$ and the variation law of Hubble parameter, connecting Hubble parameter with volume scale. Exact solution to the corresponding equations are obtained. The EoS parameter for dark energy as well as deceleration parameter is found to be the time varying functions. A qualitative picture of the evolution of the universe corresponding to different of its stages is given using the latest observational data.
description: 11 pages, 6 figures. arXiv admin note: substantial text overlap with arXiv:1209.6029; and with arXiv:1010.2362, arXiv:1010.1947, arXiv:1102.1077 by other authors
PRIORITIZING THE GOALS OF STRATEGIC MANAGEMENT OF RESEARCH AND DEVELOPMENT BY THE ANALYTICAL HIERARCHY PROCESS (AHP); CASE STUDY: TABARESTAN PLASTIC COMPLEX COMPANY
Creators: name: JAVAD AKBARI
name: BARMAK GHANBARPOUR
name: GOLSHAN HAJIZADEH
Publisher: name: Zenodo
Year: 2023
Subjects: Innovation in Industries, Research and Development, Analytical Hierarchy Process.

description: Abstract
Today, with the growth of science and innovation in the industries, products are being offered in market that have features of complexity and innovation. On the other hand, increase in diversity of customers' needs and increase of competitors have made the markets undergo major changes. Therefore, in order for effective presence in the market, companies need to develop and present new products in a short period of time that have technological diversity. The solution to meet this need depends on the capabilities of the research and development unit in the development and presentation of new products. This article is born from the belief that if the objectives of the research and development unit are well prioritized, they can play an important role in the promotion of organizations. In this article, the objectives of the research and development unit of Tabarestan Plastic Complex Company have been examined in three levels of market, products and production, and the sub-criteria of these three levels have been determined according to the opinion of the managers, in each department. After that, using the hierarchical analysis method (AHP), prioritization of sub-criteria is specified.
Surface superconductivity in rhombohedral graphite
Creators: name: Kopnin, N. B.
name: Heikkila, T. T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We show that rhombohedral graphite may support surface superconductivity with an unusual relation between the BCS coupling constant and the order parameter. This feature results from the properties of the states localized on the graphite surfaces. In a description including only the nearest neighbour coupling of the graphene layers, the surface states are topologically protected and have a flat band dispersion. We show that including higher order couplings destroys this flat band character and leads to a particle-hole symmetry breaking quadratic dispersion with a large effective mass. Employing this dispersion, we then show its effect on superconductivity and find two regimes of parameters, depending on the relation between the strength of the coupling constant and the details of the quadratic dispersion. For low coupling strengths, superconductivity is localized on the surfaces, but the order parameter is exponentially suppressed as in a conventional BCS superconductor, whereas for large coupling strengths we obtain surface superconductivity with a linear relation between the order parameter and the coupling constant. Our results may explain the recent findings of graphite superconductivity with a relatively high transition temperature.
description: 18 pages, 11 figures. Long version of arXiv:1210.7595, submitted as a book chapter in "Carbon-based new superconductors". This version contains an updated discussion about the doping dependence, and a few smaller changes
The SLUGGS Survey: Globular cluster system kinematics and substructure in NGC 4365
Creators: name: Blom, Christina
name: Forbes, Duncan A.
name: Brodie, Jean P.
name: Foster, Caroline
name: Romanowsky, Aaron J.
name: Spitler, Lee R.
name: Strader, Jay
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a kinematic analysis of the globular cluster (GC) system of the giant elliptical galaxy NGC 4365 and find several distinct kinematic substructures. This analysis is carried out using radial velocities for 269 GCs, obtained with the DEIMOS instrument on the Keck II telescope as part of the SAGES Legacy Unifying Globulars and Galaxies Survey (SLUGGS). We find that each of the three (formerly identified) GC colour subpopulations reveal distinct rotation properties. The rotation of the green GC subpopulation is consistent with the bulk of NGC 4365's stellar light, which `rolls' about the photometric major axis. The blue and red GC subpopulations show `normal' rotation about the minor axis. We also find that the red GC subpopulation is rotationally dominated beyond 2.5 arcmin (~17 kpc) and that the root mean squared velocity of the green subpopulation declines sharply with radius suggesting a possible bias towards radial orbits relative to the other GC subpopulations. Additionally, we find a population of low velocity GCs that form a linear structure running from the SW to the NE across NGC 4365 which aligns with the recently reported stellar stream towards NGC 4342. These low velocity GCs have g'-i' colours consistent with the overall NGC 4365 GC system but have velocities consistent with the systemic velocity of NGC 4342. We discuss the possible formation scenarios for the three GC subpopulations as well as the possible origin of the low velocity GC population.
description: 15 pages, 12 figures, accepted for publication in MNRAS. For more information on "The SLUGGS Survey" see: http://sluggs.swin.edu.au/
Circumpolar Studies Curriculum Development Guide 1.0
Creators: name: UArctic Læra Institute for Circumpolar Education
Publisher: name: Zenodo
Year: 2022

description: The Læra Institute for Circumpolar Education has prepared this curriculum development guide for UArctic member faculty who are developing, re-developing, enhancing or reviewing an undergraduate curriculum focused on the study of the Circumpolar North.  UArctic and many of its members call such a curriculum 'Circumpolar Studies', but it sometimes also goes by the name 'Arctic Studies' or 'Northern Studies'.
Our purpose is not to dictate a set of criteria for curriculum developers to follow.  Rather, we offer a set of guiding principles to support them in developing curricula that address the Circumpolar North in all its diversity, and that facilitate meaningful learning outcomes.
We are therefore less concerned with identifying and enumerating specific topics of study, than with setting out a general approach to Circumpolar Studies curriculum development.  Our starting points are the UArctic's existing core Circumpolar Studies curriculum, which is designed to enable broad knowledge and understanding of the lands, peoples and critical issues of the Circumpolar North, as well as the UArctic's core values as expressed in the UArctic's academic endorsement principles:

Circumpolar: operating across different regions of the North
Inclusive: respecting multiple systems of knowledge
Reciprocal: promoting multidisciplinary understanding
By supporting UArctic member faculty in this way, this curriculum development guide aims to strengthen existing UArctic academic standards, and to reinvigorate the connections between a UArctic-wide academic community of educators and students.
The interrelationships between Adult Attachment, Trait Mindfulness, Meaning in Life, and Epistemic Trust
Creators: name: Stevenson, Jodie
name: Horowitz, Ava
name: Yaghi, Khaled
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Adultattachment
subject: trust
subject: mindfulness
subject: meaninginlife

description: This is the second study in my PhD program. It follows a meta-analytic study and it is cross-sectional which aims to investigate the interrelationships between Adult Attachment Anxiety and Avoidance (measured by the 12-item Experiences in Close Relationship Scale (ECR-12; Lafontaine et al., 2015), Disorganised Attachment (measured by the 9-item Adult Disorganised Attachment Scale (ADA; Paetzold et al., 2015), Mindfulness measured by the 15-item Five-Facet Mindfulness Questionnaire (FFMQ-15; Baer et al., 2008), Meaning in Life (measured by the 15-item Multidimensional Existential Meaning Scale (George & Park, 2017), and Epistemic Trust (measured by the 15-item Epistemic Trust, Mistrust and Credulity Questionnaire (ETMCQ; Campbell et al., 2021). Mediation models will be established via SPSS 28.
MPEC 2023-F103 : 2022 DX4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
BOSHLANG'ICH SINFLARDA MATEMATIKA DOIRASIDA   SINF(MAKTAB)DAN TASHQARI MASHG'ULOTLARNI   TASHKIL ETISH
Creators: name: Artikbayeva, Zamira
name: Tojimatova, Shahzoda
Publisher: name: Zenodo
Year: 2023

description: Maqolada boshlang'ich sinf o'quvchilarini matematika faniga qiziqtirish, o'quv  materiallarini yaxshi o'zlashtirishlari hamda iqtidorlarini rivojlantirish maqsadida darsdan tashqari qo'shimcha mashg'ulotlarni tashkil etishning ahamiyati to'g'risida fikr yuritilgan.
Topological insulator in a Bi-Bi$_2$Se$_3$ infinitely adaptive superlattice phase
Creators: name: Valla, T.
name: Ji, Huiwen
name: Schoop, L. M.
name: Weber, A. P.
name: Pan, Z. -H.
name: Sadowski, J. T.
name: Vescovo, E.
name: Fedorov, A. V.
name: Caruso, A. N.
name: Gibson, Q. D.
name: Muchler, L.
name: Felser, C.
name: Cava, R. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report spin- and angle-resolved photoemission studies of a topological insulator from the infinitely adaptive series between elemental Bi and Bi$_2$Se$_3$. The compound, based on Bi$_4$Se$_3$, is a 1:1 natural superlattice of alternating Bi$_2$ layers and Bi$_2$Se$_3$ layers; the inclusion of S allows the growth of large crystals, with the formula Bi$_4$Se$_{2.6}$S$_{0.4}$. The crystals cleave along the interfaces between the Bi$_2$ and Bi$_2$Se$_3$ layers, with the surfaces obtained having alternating Bi or Se termination. The resulting terraces, observed by photoemission electron microscopy, create avenues suitable for the study of one-dimensional topological physics. The electronic structure, determined by spin- and angle- resolved photoemission spectroscopy, shows the existence of a surface state that forms a large, hexagonally shaped Fermi surface around the $Γ$ point of the surface Brillouin zone, with the spin structure indicating that this material is a topological insulator.
description: published version, 5 pages, 4 figures
Longitudinal Study on the stability of the interrelationships between Adult Attachment, Trait Mindfulness, Meaning in Life, and Epistemic Trust
Creators: name: Yaghi, Khaled
name: Horowitz, Ava
name: Stevenson, Jodie
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Psychology
subject: FOS: Psychology
subject: Social and Behavioral Sciences

description: This is the third study in my PhD program. It follows a meta-analytic study and a cross-sectional study. It aims to investigate the stability of the interrelationships between 4 constructs through measuring them at 2 time points six months apart. Adult Attachment Anxiety and Avoidance will be measured by the 12-item Experiences in Close Relationship Scale (ECR-12; Lafontaine et al., 2015), Disorganised Attachment will be measured by the 9-item Adult Disorganised Attachment Scale (ADA; Paetzold et al., 2015), Mindfulness will be measured by the 15-item Five-Facet Mindfulness Questionnaire (FFMQ-15; Baer et al., 2008), Meaning in Life will be measured by the 15-item Multidimensional Existential Meaning Scale (George & Park, 2017), and Epistemic Trust will be measured by the 15-item Epistemic Trust, Mistrust and Credulity Questionnaire (ETMCQ; Campbell et al., 2021). The statistical analysis will be run on SPSS 28.
Comparison of different sources for laboratory X-ray microscopy
Creators: name: Ebensperger, Thomas
name: Stahlhut, Philipp
name: Nachtrab, Frank
name: Zabler, Simon
name: Hanke, Randolf
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: This paper describes the setup of two different solutions for laboratory X-ray microscopy working with geometric magnification. One setup uses thin-film transmission targets with an optimized tungsten-layer thickness and the electron gun and optics of an electron probe micro analyzer to generate a very small X-ray source. The other setup is based on a scanning electron microscope and uses microstructured reflection targets. We also describe the structuring process for these targets. In both cases we show that resolutions of 100 nm can be achieved. Also the possibilities of computed tomography for 3D imaging are explored and we show first imaging examples of high-absorption as well as low-absorption specimens to demonstrate the capabilities of the setups.
description: 6 pages, 4 figures, proceedings of the 14th International Workshop on Radiation Imaging Detectors
Focusing of geodesic congruences in an accelerated expanding Universe
Creators: name: Albareti, F. D.
name: Cembranos, J. A. R.
name: de la Cruz-Dombriz, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the accelerated expansion of the Universe through its consequences on a congruence of geodesics. We make use of the Raychaudhuri equation which describes the evolution of the expansion rate for a congruence of timelike or null geodesics. In particular, we focus on the space-time geometry contribution to this equation. By straightforward calculation from the metric of a Robertson-Walker cosmological model, it follows that in an accelerated expanding Universe the space-time contribution to the Raychaudhuri equation is positive for the fundamental congruence, favoring a non-focusing of the congruence of geodesics. However, the accelerated expansion of the present Universe does not imply a tendency of the fundamental congruence to diverge. It is shown that this is in fact the case for certain congruences of timelike geodesics without vorticity. Therefore, the focusing of geodesics remains feasible in an accelerated expanding Universe. Furthermore, a negative contribution to the Raychaudhuri equation from space-time geometry which is usually interpreted as the manifestation of the attractive character of gravity is restored in an accelerated expanding Robertson-Walker space-time at high speeds.
description: 11 pages, 2 figures. Final version changed to match published version in JCAP. References updated. Conclusions unchanged
Competition between the electronic and phonon-mediated scattering channels in the out-of-equilibrium carrier dynamics of semiconductors: an ab-initio approach
Creators: name: Marini, Andrea
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The carrier dynamics in bulk Silicon, a paradigmatic indirect gap semiconductor, is studied by using the Baym-Kadanoff equations. Both the electron--electron(e-e) and electron--phonon(e-p) self--energies are calculated fully ab-initio by using a semi-static GW approximation in the e-e case and a Fan self-energy in the e-p case. By using the generalized Baym-Kadanoff ansatz the two-time evolution is replaced by the only dynamics on the macroscopic time axis. The enormous numerical difficulties connected with a real-time simulation of realistic systems is overcame by using a completed collision approximation that further simplifies the memory effects connected to the time evolution. The carrier dynamics is shown to reduce in such a way to have stringent connections to the well-known equilibrium electron-electron and electron-phonon self-energies. This link allows to use general arguments to motivate the relative balance between the e-e and e-p scattering channels on the basis of the carrier energies.
description: 22 pages, 6 figures, Progress in Nonequilibrium Green's Functions V proceeding (https://www.jyu.fi/fysiikka/en/pngf5/proceedings)
FRAUD BEHAVIOR IN VILLAGE FUND MANAGEMENT IN NORTH TIDORE DISTRICT: A PENTAGON FRAUD THEORY STUDY
Creators: name: YUSTIANA DJAELANI
name: RINTO SYAHDAN
Publisher: name: Zenodo
Year: 2023
Subjects: Fraud, Pentagon Fraud Theory, Village Fund, North Tidore.

description: Abstract
This study was conducted to look at the factors that influence fraud behavior in village fund management based on the Pentagon fraud theory. Each factor is represented by proxies of external pressure, information system weaknesses (opportunities), organizational ethical culture (rationalization), intentions, as well as attitudes and behavioral controls (capability), and subjective norms (arrogance). The research sample was determined using the purposive sampling method, which consists of village equipment in Maitara. The data were analyzed by descriptive quantitative methods, which were tested using Partial Least Square (PLS). The result of this study is that external pressure has proven to affect fraud in the process of managing village funds. Opportunities proxied with information system weaknesses proved to not affect Village Fund Fraud. Rationalization measured by the ethical culture of the organization is proven to affect Village Fund Fraud. Attitudes are proven to not affect the intention to commit fraud in the process of managing village funds. Subjective norms have proven no effect on the intention to commit fraud in the process of managing village funds. Behavioral control has been shown to affect the intention to commit fraud in the process of managing village funds. Intention affects fraud behavior in the process of managing village funds.
Limits on prompt, dispersed radio pulses from gamma-ray bursts
Creators: name: Bannister, Keith W.
name: Murphy, Tara
name: Gaensler, Bryan M.
name: Reynolds, John E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have searched for prompt radio emission from nine Gamma Ray Bursts (GRBs) with a 12 m telescope at 1.4 GHz, with a time resolution of 64 us to 1 s. We detected single dispersed radio pulses with significances >6 sigma in the few minutes following two GRBs. The dispersion measures of both pulses are well in excess of the expected Galactic values, and the implied rate is incompatible with known sources of single dispersed pulses. The arrival times of both pulses also coincide with breaks in the GRB X-ray light curves. A null trial and statistical arguments rule out random fluctuations as the origin of these pulses with >95% and 97% confidence, respectively, although a simple population argument supports a GRB origin with confidence of only 2%. We caution that we cannot rule out RFI as the origin of these pulses. If the single pulses are not related to the GRBs we set an upper limit on the flux density of radio pulses emitted between 200 to 1800 s after a GRB of 1.27 w^{-1/2} Jy, where 64 us < w < 32 ms is the pulse width. We set a limit of less than 760 Jy for long timescale (>1 s) variations. These limits are some of the most constraining at high time resolution and GHz frequencies in the early stages of the GRB phenomenon.
description: 14 pages, 8 figures, 1 table. Accepted for Apj on 26 July 2012
On Waring's problem: two squares and three biquadrates
Creators: name: Friedlander, John B.
name: Wooley, Trevor D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11P05, 11N36, 11P55

description: We investigate sums of mixed powers involving two squares and three biquadrates. In particular, subject to the truth of the Generalised Riemann Hypothesis and the Elliott-Halberstam Conjecture, we show that all large natural numbers n with 8 not dividing n, n not congruent to 2 modulo 3, and n not congruent to 14 modulo 16, are the sum of 2 squares and 3 biquadrates.
description: to appear in Mathematika
The hot R Coronae Borealis star DY Centauri is a binary
Creators: name: Rao, N. Kameswara
name: Lambert, David L.
name: Garcia-Hernandez, D. A.
name: Jeffery, C. Simon
name: Woolf, Vincent M.
name: McArthur, Barbara
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The remarkable hot R Coronae Borealis star DY Cen is revealed to be the first and only binary system to be found among the R Coronae Borealis (RCB) stars and their likely relatives, including the Extreme Helium stars and the hydrogen-deficient carbon stars. Radial velocity determinations from 1982-2010 have shown DY Cen is a single-lined spectroscopic binary in an eccentric orbit with a period of 39.67 days. It is also one of the hottest and most H-rich member of the class of RCB stars. The system may have evolved from a common-envelope to its current form.
description: Published in The Astrophysical Journal Letters; one missing reference has been added in order to fit the published version ApJ, 760, L3
MASSTIGE MARKETING: AN ANALYSIS ON BRAND DEMOCRATIZATION AND CUSTOMER BRAND ENGAGEMENT
Creators: name: VENKATESH. N
name: Dr. T. SENTHIL MURUGAN
Publisher: name: Zenodo
Year: 2023
Subjects: Brand Democratization, Customer Brand Engagement, Customer Brand Power.

description: Abstract
The process of Brand Democratization (BD) is primarily responsible for the increased marketing of luxury brands that were formerly only available to the upper echelons of society. Nonetheless, there is a dearth of scholarly investigation into the effects of democratization and how they affect consumer brand involvement. Advocates for a deeper knowledge of brand democratization point to the literature and the preliminary conceptual model as means of exploring the emphasized assumptions of brand democratization and customer-brand engagement. This research, which concurrently conducted three studies, uses primarily quantitative techniques for gathering data to look at the fundamental ideas of a more democratic brand. In the first study, brand democratization was investigated through a methodical literature analysis, and many dimensions that contribute to a deeper comprehension of the concept were found. In order to help luxury businesses create a cogent long-term strategy to handle particular issues, this academic empirical investigation on brand democratization offers various theoretical advances. The online survey form was made on the Google podium and sent to urban Bengaluru residents using the snowball sampling technique.  In the end, we had 130 insightful responses. Further research on the mediating effect of customer-brand interactions is warranted, as the results demonstrated a beneficial influence of brand democratization on customer brand engagement. When looking for a moderating effect on the link between BD and CBE, the control and empowerment that consumers and customers of luxury brands want to have over brands were taken into account.
NIZOLARNI MUQOBIL HAL QILISHNING O'ZIGA XOS JIHATLARI
Creators: name: Karimova, Shaxzoda
Publisher: name: Zenodo
Year: 2023

description: Nizolarni muqobil hal qilish har qachongidan ham katta ahamiyat kasb etib bormoqda. Insonlar o'zaro munosabatlarda kichik bo'lsa ham nizoli vaziyatlarga tushishi mumkin. Bu kabi vaziyatlarni muqobil hal qilish katta ahamiyatga egadir. Mamlaktimizda nizolarni hal qilish bo'yicha bir qancha ishlar olib borilmoqda. Nizolarni hal qilishning muqobil usullari sudlarda ishlarni ko'rish tartibiga nisbatan kamroq rasmiy tartib bo'lib, ular yuzaga kelgan nizolarni hal qilishda sud tizimi yukini sezilarli darajada yengillashtirishi mumkin.
3D simulations of globules and pillars formation around HII regions: turbulence and shock curvature
Creators: name: Tremblin, P.
name: Audit, E.
name: Minier, V.
name: Schmidt, W.
name: Schneider, N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the interplay between the ionization radiation from massive stars and the turbulence inside the surrounding molecular gas thanks to 3D numerical simulations. We used the 3D hydrodynamical code HERACLES to model an initial turbulent medium that is ionized and heated by an ionizing source. Three different simulations are performed with different mean Mach numbers (1, 2 and 4). A non-equilibrium model for the ionization and the associated thermal processes was used. This revealed to be crucial when turbulent ram pressure is of the same order as the ionized-gas pressure. The density structures initiated by the turbulence cause local curvatures of the dense shell formed by the ionization compression. When the curvature of the shell is sufficient, the shell collapse on itself to form a pillar while a smaller curvature leads to the formation of dense clumps that are accelerated with the shell and therefore remain in the shell during the simulation. When the turbulent ram pressure of the cold gas is sufficient to balance the ionized-gas pressure, some dense-gas bubbles have enough kinetic energy to penetrate inside the ionized medium, forming cometary globules. This suggests a direct relation in the observations between the presence of globules and the relative importance of the turbulence compared to the ionized-gas pressure. The probability density functions present a double peak structure when the turbulence is low relative to the ionized-gas pressure. This could be used in observations as an indication of the turbulence inside molecular clouds.
description: accepted for publication in A&A
Evaporative cooling of the dipolar radical OH
Creators: name: Stuhl, Benjamin K.
name: Hummon, Matthew T.
name: Yeo, Mark
name: Quéméner, Goulven
name: Bohn, John L.
name: Ye, Jun
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Atomic physics was revolutionized by the development of forced evaporative cooling: it led directly to the observation of Bose-Einstein condensation, quantum-degenerate Fermi gases, and ultracold optical lattice simulations of condensed matter phenomena. More recently, great progress has been made in the production of cold molecular gases, whose permanent electric dipole moment is expected to generate rich, novel, and controllable phases, dynamics, and chemistry in these ultracold systems. However, while many strides have been made in both direct cooling and cold-association techniques, evaporative cooling has not yet been achieved due to unfavorable elastic-to-inelastic ratios and impractically slow thermalization rates in the available trapped species. We now report the observation of microwave-forced evaporative cooling of hydroxyl (OH) molecules loaded from a Stark-decelerated beam into an extremely high-gradient magnetic quadrupole trap. We demonstrate cooling by at least an order of magnitude in temperature and three orders in phase-space density, limited only by the low-temperature sensitivity of our spectroscopic thermometry technique. With evaporative cooling and sufficiently large initial populations, much colder temperatures are possible, and even a quantum-degenerate gas of this dipolar radical -- or anything else it can sympathetically cool -- may now be in reach.
description: 6 pages, 4 figures
Color-kinematic Duality for Form Factors
Creators: name: Boels, Rutger H.
name: Kniehl, Bernd A.
name: Tarasov, Oleg V.
name: Yang, Gang
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently a powerful duality between color and kinematics has been proposed for integrands of scattering amplitudes in quite general gauge theories. In this paper the duality proposal is extended to the more general class of gauge theory observables formed by form factors. After a discussion of the general setup the existence of the duality is verified in two- and three-loop examples in four dimensional maximally supersymmetric Yang-Mills theory which involve the stress energy tensor multiplet. In these cases the duality reproduces known results in a particularly transparent and uniform way. As a non-trivial application we obtain a very simple form of the integrand of the four-loop two-point (Sudakov) form factor which passes a large set of unitarity cut checks.
description: 37 pages, 12 figures, references added, typos corrected, published version
High mobility conduction at (110) and (111) LaAlO3/SrTiO3 interfaces
Creators: name: Herranz, Gervasi
name: Sánchez, Florencio
name: Dix, Nico
name: Scigaj, Mateusz
name: Fontcuberta, Josep
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In recent years, striking discoveries have revealed that two-dimensional electron liquids (2DEL) confined at the interface between oxide band-insulators can be engineered to display a high mobility transport. The recognition that only few interfaces appear to suit hosting 2DEL is intriguing and challenges the understanding of these emerging properties not existing in bulk. Indeed, only the neutral TiO2 surface of (001)SrTiO3 has been shown to sustain 2DEL. We show that this restriction can be surpassed: (110) and (111) surfaces of SrTiO3 interfaced with epitaxial LaAlO3 layers, above a critical thickness, display 2DEL transport with mobilities similar to those of (001)SrTiO3. Moreover we show that epitaxial interfaces are not a prerequisite: conducting (110) interfaces with amorphous LaAlO3 and other oxides can also be prepared. These findings open a new perspective both for materials research and for elucidating the ultimate microscopic mechanism of carrier doping.
description: Published in Scientific Reports (open access jounal of the Nature Publishing Group)
The SLUGGS Survey: Calcium Triplet-based Spectroscopic Metallicities for Over 900 Globular Clusters
Creators: name: Usher, Christopher
name: Forbes, Duncan A.
name: Brodie, Jean P.
name: Foster, Caroline
name: Spitler, Lee R.
name: Arnold, Jacob A.
name: Romanowsky, Aaron J.
name: Strader, Jay
name: Pota, Vincenzo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Although the colour distribution of globular clusters in massive galaxies is well known to be bimodal, the spectroscopic metallicity distribution has been measured in only a few galaxies. After redefining the calcium triplet index-metallicity relation, we use our relation to derive the metallicity of 903 globular clusters in 11 early-type galaxies. This is the largest sample of spectroscopic globular cluster metallicities yet assembled. We compare these metallicities with those derived from Lick indices finding good agreement. In 6 of the 8 galaxies with sufficient numbers of high quality spectra we find bimodality in the spectroscopic metallicity distribution. Our results imply that most massive early-type galaxies have bimodal metallicity, as well as colour, distributions. This bimodality suggests that most massive galaxies early-type galaxies experienced two periods of star formation.
description: 23 pages, 13 figures. Accepted for publication in MNRAS. For more information about the SLUGGS Survey please see http://sluggs.swin.edu.au
Oscillating Cosmological Model
Creators: name: Neupane, Bishal
Publisher: name: Zenodo
Year: 2025

description: This thesis presents an oscillating universe model where the cosmos expands and contracts cyclically, described by a sinusoidal scale factor that prevents total collapse or runaway expansion. It demonstrates alternating phases of accelerated and decelerated expansion, aligning with observations like the universe’s current acceleration, and estimates the universe’s age at approximately 13.6 billion years, close to the observed 13.8 billion years. The model avoids singularities by proposing smooth transitions between phases and predicts future contraction driven by cyclic dynamics. It adapts standard cosmological equations to this framework, addresses risks like spacetime tearing during extreme phases by constraining parameters, and explores energy conditions to ensure physical realism. Serving as an alternative to the ΛCDM model, the work provides detailed mathematical derivations and appendices on technical aspects like stress analysis, aiming to inspire further research into cyclical cosmology and observational comparisons.
Bezpieczeństwo przyszłości – wybrane zagadnienia
Creators: name: (:Unav)
Publisher: name: Wydawnictwo Uniwersytetu Jana Kochanowskiego w Kielcach
Year: 2023

description: Wstęp 7 BEZPIECZEŃSTWO PAŃSTWA W PRZYSZŁOŚCI MARIAN KOZUB, ADRIAN MITRĘGA Wojna psychologiczna w okresie zmiany strategicznej 15 RYSZARD NIEDŹWIECKI Ochrona, kontrola i regulacja w procesie zapewniania bezpieczeństwa 31 MARCIN RYDZEK Perspektywa bezpieczeństwa w czasach transformacji technologicznej 45 DANIEL WOJTASZKIEWICZ Straż Graniczna w systemie ochrony granicy państwowej jako kluczowego elementu bezpieczeństwa państwa 67 PAWEŁ HURLAK Zmasowany przerzut nielegalnych migrantów jako sposób wykorzystywania presji migracyjnej w celu destabilizacji państwa 79 PETRO GARASYIM, MARCIN WALCZAK Zarządzanie ryzykiem finansowym przedsiębiorstwa w perspektywie zapewnienia bezpieczeństwa i ciągłości jego działania 93 WYMIAR LOKALNY BEZPIECZEŃSTWA MARTYNA OSTROWSKA Bezpieczeństwo obiektywne uczestników ruchu drogowego w Łodzi a wdrożenie Obszarowego Systemu Sterowania Ruchem 107 KINGA KAJZER Partycypacja społeczna i aktywizacja w budowaniu bezpieczeństwa lokalnego w Polsce w obliczu nowych szans i zagrożeń 123 NINA STĘPNICKA, STANISŁAW WIETESKA Zastosowanie bezzałogowych statków powietrznych (BSP) do określania powierzchni dachów w Polsce na terenach pozamiejskich pokrytych azbestem – wybrane aspekty w zakresie bezpieczeństwa i metodyki pomiaru 139 NINA STĘPNICKA, JACEK KONCIAK Poszkodowani w pożarach mieszkań – szacowanie wartości 153 BEZPIECZEŃSTWO MIĘDZYNARODOWE W PRZYSZŁOŚCI RAFAŁ KOŁODZIEJCZYK Rola działań cybernetycznych we współczesnych konfliktach zbrojnych 171 JOANNA GRZELA Gotowość na wojnę w czasie pokoju. Fiński model całościowego bezpieczeństwa 185 PAWEŁ GÓRSKI Logistyka masowej ewakuacji ludności (na przykładzie uchodźców wojennych z Ukrainy) 203 PRZEMYSŁAW MERKLINGER Polityka migracyjna Rzeczypospolitej Polskiej a wojna rosyjsko-ukraińska 221 WIKTOR WELIK Nuklearne kłamstwa – rosyjska wojna propagandowa 233
description: Podejmowana problematyka skupiona jest wokół bezpieczeństwa w przyszłości i porusza szereg aspektów, istotnych z punktu widzenia badań prowadzonych w obszarze bezpieczeństwa. Bezpieczeństwo rozumiane jest jako stan wolny od zagrożeń. Wydarzenia, z jakimi mamy do czynienia w ostatnich latach, prowokują do zastanowienia się, w jaki sposób nowoczesne społeczeństwa będą stawiały czoła pojawiającym się zagrożeniom. W obliczu nowych konfliktów i sposobów ich prowadzenia, rozwoju technologii, wyzwań związanych z globalną pandemią, problemów ekologicznych i szeregu innych zagrożeń, należy zastanowić się nad kierunkiem prowadzonych działań, mających zapewnić bezpieczeństwo na różnych poziomach. Choć w ostatnich latach zauważalna była tendencja do przewartościowania bezpieczeństwa, a uwaga badaczy skupiona była na zagrożeniach pozamilitarnych, rzeczywistość pokazuje, że zagrożenia militarne wciąż są istotne, a ich skutki mają przemożny wpływ na funkcjonowanie państw na całym globie. W tym kontekście rozważania o współczesnych i możliwych przyszłych zagrożeniach należy traktować priorytetowo.
The Genomic Signature of Crop-Wild Introgression in Maize
Creators: name: Hufford, Matthew B.
name: Lubinksy, Pesach
name: Pyhäjärvi, Tanja
name: Devengenzo, Michael T.
name: Ellstrand, Norman C.
name: Ross-Ibarra, Jeffrey
Publisher: name: arXiv
Year: 2012
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: The evolutionary significance of hybridization and subsequent introgression has long been appreciated, but evaluation of the genome-wide effects of these phenomena has only recently become possible. Crop-wild study systems represent ideal opportunities to examine evolution through hybridization. For example, maize and the conspecific wild teosinte Zea mays ssp. mexicana, (hereafter, mexicana) are known to hybridize in the fields of highland Mexico. Despite widespread evidence of gene flow, maize and mexicana maintain distinct morphologies and have done so in sympatry for thousands of years. Neither the genomic extent nor the evolutionary importance of introgression between these taxa is understood. In this study we assessed patterns of genome-wide introgression based on 39,029 single nucleotide polymorphisms genotyped in 189 individuals from nine sympatric maize-mexicana populations and reference allopatric populations. While portions of the maize and mexicana genomes were particularly resistant to introgression (notably near known cross-incompatibility and domestication loci), we detected widespread evidence for introgression in both directions of gene flow. Through further characterization of these regions and preliminary growth chamber experiments, we found evidence suggestive of the incorporation of adaptive mexicana alleles into maize during its expansion to the highlands of central Mexico. In contrast, very little evidence was found for adaptive introgression from maize to mexicana. The methods we have applied here can be replicated widely, and such analyses have the potential to greatly informing our understanding of evolution through introgressive hybridization. Crop species, due to their exceptional genomic resources and frequent histories of spread into sympatry with relatives, should be particularly influential in these studies.
Czasopiśmiennictwo. Przeszłość i teraźniejszość, t. 4
Creators: name: (:Unav)
Publisher: name: Wydawnictwo Uniwersytetu Jana Kochanowskiego w Kielcach
Year: 2022

description: Spis treści WSTĘP 7 DANUTA HOMBEK, Sylwetki uczonych i polityków w „Pamiętniku Politycznym i Historycznym” Piotra Świtkowskiego 11 RENATA PIASECKA-STRZELEC, Namiastka oferty kulturalnej pisma gadzinowego „Nowy Czas” w latach 1939–1943 27 JOLANTA CHWASTYK-KOWALCZYK, Dziennikarskie peregrynacje Prezes Związku Pisarzy Polskich na Obczyźnie Reginy Wasiak-Taylor 67 PRZEMYSŁAW CISZEK, Specyfika reklam w czasopismach „Bajtek” i „Komputer” w latach 1986–1989 95 JOANNA NOWAK, Czasopismo branżowe, popularnonaukowe czy korporacyjne? Część 1: „Złotnik – Zegarmistrz” (1987–1989) i jego twórcy 111 JUDYTA EWA PERCZAK, „Wróżko”, jak żyć? Ewolucja stylów i dróg życiowych propagowanych na łamach prasy kobiecej na przykładzie prasy ezoterycznej i luksusowej 153 MONIKA OLCZAK-KARDAS, Wydawnictwa ciągłe w ofercie Kieleckiej Aukcji Antykwarycznej w latach 1991–2008 183 JOLANTA DZIERŻYŃSKA-MIELCZAREK, Wydawcy tygodników opinii w drugiej dekadzie XXI wieku. Analiza sytuacji finansowej 203 TOMASZ MIELCZAREK, Współczesne polskie gazety regionalne 221 WERONIKA SAŁEK, Prasa kobieca w Wielkiej Brytanii – próba typologii 239 NOTY O AUTORACH 253
description: W czwartym tomie wydawnictwa Czasopiśmiennictwo. Przeszłość i teraźniejszość autorzy – pracownicy Katedry Dziennikarstwa i Komunikacji Społecznej Uniwersytetu Jana Kochanowskiego, każdy w zakresie swoich zainteresowań badawczych – próbują odpowiedzieć na pytania: po pierwsze – o kondycję prasy w zmieniającej się rzeczywistości medialnej, po drugie – o jej znaczenie w życiu społeczeństwa, będącego jej odbiorcą. Badacze mają nadzieję, że ich ustalenia zaciekawią duże grono osób zainteresowanych dziejami prasy i warunkami jej funkcjonowania w czasach współczesnych.
HEALTH CARE PROFESSIONAL PERCEPTION TOWARDS ENGAGEMENT FACTORS WITH REFERENCE TO MULTI-SPECIALTY HOSPITAL IN CHENNAI
Creators: name: S. ROBIN
name: Dr. C. KUMARAN
name: Dr. S. PRAVEEN KUMAR
Publisher: name: Zenodo
Year: 2023
Subjects: Employees Engagement, Healthcare Professional, Perception, Multispeciality Hospital, Chennai.

description: Abstract
This study aimed to investigate the health care professional perception towards their job engagement with special reference to multispecialty hospital in Chennai. Job engagement factors such as meaningful work, intrinsic rewards, extrinsic rewards, and self-efficacy, departmental support, supervisor support, co-worker support, job autonomy and job security are considered for this study. Questionnaire has been constructed the above said factors based on the past research work. Questionnaire has been used to collect the primary data from the health care professional working in multispecialty hospital in Chennai. A sample of 180 employees are approached to participate in the survey through convenience sampling method. The collected data are analysed with descriptive statistics such as mean and standard deviation. The findings of the study reflected the employees are having higher level of engagement in their job. Here, extrinstic reward, self-efficacy, departmental support, and job autonomy are the engagement factors found to be high among the healthcare professional. It is implied that among the healthcare professional. It is implied that engagement is the capacity of employees work endeavour, oblisation and aspiration enduring in the organization.
Implementation of a Vision System for a Landmine Detecting Robot Using Artificial Neural Network
Creators: name: Achkar, Roger
name: Owayjan, Michel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: I.2.6; I.5.1
subject: 68T45

description: Landmines, specifically anti-tank mines, cluster bombs, and unexploded ordnance form a serious problem in many countries. Several landmine sweeping techniques are used for minesweeping. This paper presents the design and the implementation of the vision system of an autonomous robot for landmines localization. The proposed work develops state-of-the-art techniques in digital image processing for pre-processing captured images of the contaminated area. After enhancement, Artificial Neural Network (ANN) is used in order to identify, recognize and classify the landmines' make and model. The Back-Propagation algorithm is used for training the network. The proposed work proved to be able to identify and classify different types of landmines under various conditions (rotated landmine, partially covered landmine) with a success rate of up to 90%.
description: 20 pages, 14 figures, 4 tables
O'ZBEK VA INGLIZ TILLARIDAGI KAUZATIV FE'LLARNING LEKSIK-SEMANTIK MA'NOLARI VA STILISTIK XUSUSIYATLARIDAGI O'XSHASHLIK VA FARQLAR
Creators: name: Karimjonova, Shahlo
Publisher: name: Zenodo
Year: 2023

description: Kauzatsiya lotincha "causa" so'zidan olingan bo'lib, "sabab" ma'nosini ifodalaydi. Mazkur hodisa tilshunoslikda aynan shu jihatdan o'rganiladi hamda kauzativ fe'lning asosiy semasida sabab ma'nosi bilan bog'lanish holatlari kuzatiladi. Aksariyat ishlarda kauzativlik tushunchasi fe'lning orttirma darajasi bilan bog'lanib, asosan, morfologik nuqtayi nazardan tekshirilgan va kauzativlikda bajaruvchining ta'siri bilan boshqa shaxs tomonidan bajarilgan harakat mavjudligi aytiladi.
Transport properties of bottomed mesons in a hot mesonic gas
Creators: name: Abreu, Luciano M.
name: Cabrera, Daniel
name: Torres-Rincon, Juan M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work we evaluate the B-meson drag and diffusion coefficients in a hot medium constituted of light mesons (pions, kaons and eta mesons). We treat the B-meson and B*-meson interaction with pseudo-Goldstone bosons in chiral perturbation theory at next-to-leading order within the constraints from heavy quark symmetry, and employ standard unitarization techniques of NLO amplitudes in order to account for dynamically generated resonances (leading to a more efficient heavy-flavor diffusion) and thus reach higher temperatures. We estimate individual meson contributions from the gas to the transport coefficients and perform a comparison with other findings in literature. We report a bottom relaxation length of about 80 fm at a temperature of 150 MeV and for typical momenta of 1 GeV, at which our approach is reliable. Compared to a charm relaxation length of 40 fm in the same conditions, we conclude that the B mesons provide a cleaner probe of the early stages of a heavy-ion collision.
description: 14 pages, 16 figures, 3 tables. Version published in Phys.Rev.D87, 034019 (2013). Only minor improvements with respect to v1: corrected typos, further clarifications and updated references