cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spin Precession and Real Time Dynamics in the Kondo Model: A Time-Dependent Numerical Renormalization-Group Study
Creators: name: Anders, Frithjof B.
name: Schiller, Avraham
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A detailed derivation of the recently proposed time-dependent numerical renormalization-group (TD-NRG) approach to nonequilibrium dynamics in quantum impurity systems is presented. We demonstrate that the method is suitable for fermionic as well as bosonic baths. A comparison with exact analytical results for the charge relaxation in the resonant-level model and for dephasing in the spin-boson model establishes the accuracy of the method. The real-time dynamics of a single spin coupled to both types of baths is investigated. We use the TD-NRG to calculate the spin relaxation and spin precession of a single Kondo impurity. The short- and long-time dynamics is studied as a function of temperature in the ferromagnetic and antiferromagnetic regimes. The short-time dynamics agrees very well with analytical results obtained at second order in the exchange coupling $J$. In the ferromagnetic regime, the long-time spin decay is described by the scaling variable $x = 2ρ_F J(T) T t$. In the antiferromagnetic regime it is governed for $T < T_K$ by the Kondo time scale $1/T_K$. Here $ρ_F$ is the conduction-electron density of states and $T_K$ is the Kondo temperature. Results for spin precession are obtained by rotating the external magnetic field from the x axis to the z axis.
description: Revtex, 21 pages, 11 figures, 1 table
Crystalline phases in chiral ferromagnets: Destabilization of helical order
Creators: name: Fischer, I.
name: Shah, N.
name: Rosch, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In chiral ferromagnets, weak spin-orbit interactions twist the ferromagnetic order into spirals, leading to helical order. We investigate an extended Ginzburg-Landau theory of such systems where the helical order is destabilized in favor of crystalline phases. These crystalline phases are based on periodic arrangements of double-twist cylinders and are strongly reminiscent of blue phases in liquid crystals. We discuss the relevance of such blue phases for the phase diagram of the chiral ferromagnet MnSi.
description: 6 pages, 5 figures (published version)
Molecular Clouds in the Second Quadrant of the Milky Way Mid-plane from l$=$104$.\!\!^{\circ}$75 to l=119$.\!\!^{\circ}$75 and b=$-$5$.\!\!^{\circ}$25 to b=5$.\!\!^{\circ}$25
Creators: name: Ma, Yuehui
name: Wang, Hongchi
name: Li, Chong
name: Lin, Lianghao
name: Sun, Yan
name: Yang, Ji
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have studied the properties of molecular clouds in the second quadrant of the Milky Way Mid-plane from l$=$104$.\!\!^{\circ}$75 to l$=$119$.\!\!^{\circ}$75 and b$=-$5$.\!\!^{\circ}$25 to b$=$5$.\!\!^{\circ}$25 using the $^{12}$CO, $^{13}$CO, and C$^{18}$O $J=1-0$ emission line data from the Milky Way Imaging Scroll Painting project (MWISP). We have identified 857 and 300 clouds in the $^{12}$CO and $^{13}$CO spectral cubes, respectively, using the DENDROGRAM + SCIMES algorithms. The distances of the molecular clouds are estimated and the physical properties like masses, sizes, and surface densities of the clouds are tabulated. The molecular clouds in the Perseus arm are about 30$-$50 times more massive and 4$-$6 times larger than the clouds in the Local arm. This result, however, is likely biased by distance selection effects. The surface densities of the clouds are enhanced in the Perseus arm with an average value of $\sim$100 M$_{\odot}$ pc$^{-2}$. We selected the 40 most extended ($>$0.35 arcdeg$^2$) molecular clouds from the $^{12}$CO catalog to build the H$_2$ column density probability distribution function (N-PDF). About 78\% of the N-PDFs of the selected molecular clouds are well fitted with log-normal functions with only small deviations at high-densities which correspond to star-forming regions with scales of $\sim$1-5 pc in the Local arm and $\sim$5-10 pc in the Perseus arm. About 18\% of the selected molecular clouds have power-law N-PDFs at high-densities. In these molecular clouds, the majority of the regions fitted with the power-law correspond to molecular clumps of sizes of $\sim$1 pc or filaments of widths of $\sim$1 pc.
description: 48 pages, 90 figures
Perturbative chiral violations for domain-wall QCD with improved gauge actions
Creators: name: Capitani, Stefano
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We investigate, in the framework of perturbation theory at finite $N_s$, the effectiveness of improved gauge actions in suppressing the chiral violations of domain-wall fermions. Our calculations show substantial reductions of the residual mass when it is compared at the same value of the gauge coupling, the largest suppression being obtained when the DBW2 action is used. Similar effects can also be observed for a power-divergent mixing coefficient which is chirally suppressed. No significant reduction instead can be seen in the case of the difference between the vector and axial-vector renormalization constants when improved gauge actions are used in place of the plaquette action. We also find that one-loop perturbation theory is not an adequate tool to carry out comparisons at the same energy scale (of about 2 GeV), and in fact in this case even an enhancement of the chiral violations is frequently obtained.
description: REVTeX 4, 20 pages, XXX tables, 1 figure. Added new Tables and comparisons made at the same energy scale, and many points in the text consequently changed
MAVERICK OF JAPANESE POLITICS IN COLD WAR ERA (commemorating the centenary of Yasuhiro Nakasone)
Creators: name: Streltsov Dmitry Victorovich
Publisher: name: Russian Japanology Review
Year: 2019
Subjects: Nakasone
Maverick
the “Weather Vane”
neo-conservatism
“autonomous defense”
privatization of public corporations
“unsinkable aircraft carrier”
populism.

description: The centenary of a prominent post-war politician, former Japanese Prime Minister Yasuhiro Nakasone was observed on May 27, 2018. The personality of Nakasone attracts attention due to his being a new type of politician who left a significant footprint on the political history of Japan. Many rightfully link the political success of Nakasone to his phenomenal capacity for political maneuvering, and the ability to gain support of stronger political opponents and to establish temporary unions, which resulted in his nickname, the “Weather Vane”. In contrast to his predecessors, Prime Minister Nakasone was actively using mass media to create a favorable image in the eye of the public and to appeal to his voters directly. In fact, Nakasone was the first leader of the Liberal Democratic Party to transform his personal popularity with voters into a powerful internal political resource in the party. Nakasone is the example of a successful reformer, whose undertakings set the tone to the national development in the field of administrative, tax, and social affairs and education for many years ahead. The Nakasone reforms are mentioned in many textbooks on public politics and governance as remarkably productive and effective against the backdrop of unsuccessful reforms held in a number of European countries in the same period. In fact, Nakasone’s neo-conservatism relied on economic nationalism: the establishment of Japan as a global economic leader that could dictate its terms on the world. A major idea of Nakasone’s neo-conservatism was that Japan should stop following examples of other nations’ patterns others but become fully politically and spiritually independent. He believed that, apart from stopping to borrow foreign practices, Japan should develop into an attractive role model to be followed by others. In that sense, Nakasone’s neo-conservatism was an impressive call for internationalizing Japanese cultural and spiritual values. Nakasone’s institutional reforms faced fierce resistance from the government bureaucracy and, despite partial success, were not fully implemented. In the field of diplomacy, many initiatives of Nakasone aimed at increasing the political role of Japan on the world stage remained unfinished during his Premiership.
A change is gonna come: a critical analysis of the benefits of musical activism in the civil rights movement
Creators: name: Neal, Erin
Publisher: name: No Publisher Supplied
Year: 2021

description: The goal of this Capstone project is to understand what made protest music useful for political activists of the Civil Rights Movement. I will answer this question by analyzing music’s effect on activists through an examination of the songs associated with the movement, regarding lyrical content as well as its musical components. By examining the lyrical content, I will be evaluating how the lyrics of protest songs were useful for the activists, as well as address criticisms of the concrete impact of song lyrics of popular songs. Furthermore, examining musical components such as genre will assist in determining if familiarity in regards to the genre were significant. Ultimately, I found that music was psychologically valuable to political activists because music became an outlet for emotions they held within, instilled within listeners new emotions, became a beacon for psychological restoration and encouragement, and motivated listeners to carry out their activism. Furthermore, from a political perspective, the lyrics brought attention to the current socio-political problems and challenged social standards, furthered activists’ political agendas, persuaded the audience to take action, and emphasized blame on political figures by demonstrating that socio-political problems citizens grappled with were due to governmental actions as well as their inactions. First, I will present what makes protest music valuable and how activists appreciated its utility, this is based on the research and evaluations of several scholars’ assessment of protest music. I will then address the considered limitations of protest songs based on analysis conducted by several scholars. I will then provide succinct insight into what psychologically and politically were the issues the Civil Rights activists grappled with and how these paralleled with music becoming a beneficial tool of utilization. Finally, I will offer an assessment of the content of the songs selected for this capstone in how those songs carried valuable psychological and political dimensions that were successfully utilized by activists, for the benefit of the activists in this movement.
Realization of exciton-mediated optical spin-orbit interaction in organic microcrystalline resonators
Creators: name: Ren, Jiahuan
name: Liao, Qing
name: Ma, Xuekai
name: Schumacher, Stefan
name: Yao, Jiannian
name: Fu, Hongbing
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The ability to control the spin-orbit interaction of light in optical microresonators is of fundamental importance for future photonics. Organic microcrystals, due to their giant optical anisotropy, play a crucial role in spin-optics and topological photonics. Here we realize controllable and wavelength-dependent Rashba-Dresselhaus spin-orbit interaction, attributed to the anisotropic excitonic response in an optical microcavity filled with an organic microcrystalline. We also investigate the transition of the spin-orbit interaction from dominant photonic type caused by the splitting of the transverse-electric and transverse-magnetic modes to spin-orbit interaction of the Rashba-Dresselhaus type. The interplay of the two allows us to engineer the spin-orbit interaction of light in organic microcavities, which besides its fundamental interest promises applications in spin-controlled on-chip integrated nanophotonic elements, towards exploiting non-magnetic and low-cost spin-photonic devices.
MHD simulations of disk-star interaction
Creators: name: Romanova, M. M.
name: Long, M.
name: Kulkarni, A. K.
name: Kurosawa, R.
name: Ustyugova, G. V.
name: Koldoba, A. K.
name: Lovelace, R. V. E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss a number of topics relevant to disk-magnetosphere interaction and how numerical simulations illuminate them. The topics include: (1) disk-magnetosphere interaction and the problem of disk-locking; (2) the wind problem; (3) structure of the magnetospheric flow, hot spots at the star's surface, and the inner disk region; (4) modeling of spectra from 3D funnel streams; (5) accretion to a star with a complex magnetic field; (6) accretion through 3D instabilities; (7) magnetospheric gap and survival of protoplanets. Results of both 2D and 3D simulations are discussed.
description: 12 pages, 10 figures, Star-Disk Interaction in Young Stars, Proceedings of the International Astronomical Union, IAU Symposium, Volume 243. See animations at http://astro.cornell.edu/~romanova/projects.htm and at http://astro.cornell.edu/us-rus/
Protocol verification using symbolic model checking
Creators: name: Mathieson, Charles G.
Publisher: name: University of British Columbia
Year: 2009

description: To reduce problems encountered in the later phases of the software life cycle, verification techniques can be used in the design phase to ensure that a design has the intended properties. The main advantage of using formal verification over other validation methods, such as simulation and testing, is that it reasons about all possible behaviours of a system. However, formal verification techniques have not yet been widely accepted in industry because most of them suffer from the state explosion problem or are too difficult to use. In this thesis, an automatic model checking verification system for communication protocols is developed that tackles the state explosion problem. The Ever symbolic verifier [HDDY92], which is a high-level specification language and symbolic reachability analysis tool for extended finite state machines, is used as a basis for this system. The system accepts a protocol specification written in Estelle.Y [Lu91], a variant of the Estelle formal protocol description language [IS089]. Each Estelle.Y module of the specification is translated into the Ever language and fed into the Ever symbolic verifier. The intended properties are written as CTL temporal logic formulae [CG87] expressed in terms of variables in the Estelle.Y specifications. These formulae are given to the verifier to check that they are true in the model produced from the protocol specification. With this system one can assert that given safety and liveness properties are true in all possible behaviours of a protocol. When the system finds a given formula to be false, it is capable of producing a counterexample trace. This trace greatly assists the designer to correct the protocol specification and the temporal formulae of the intended properties. After the Estelle.Y to Ever translator was implemented, the original Ever verifier was extended to support model checking of CTL temporal formulae [CG87]. The extended verifier can check not only eventuality properties but also more general temporal properties such as precedences and invariances. The Ever verifier was also extended with the notion of fairness constraints [BCMD90] to allow the model to check only fair behaviours. These extensions enable incremental verification to be performed to reduce the overall checking time dramatically. This system was successfully applied to the specification of the alternating bit protocol [IS089] to demonstrate this new tool. Various safety and liveness properties expressed as CTL temporal formulae are described and explained in detail in this thesis. The CPU time and memory requirements for this verification are discussed.
The Arecibo Legacy Fast ALFA Survey: III. HI Source Catalog of the Northern Virgo Cluster Region
Creators: name: Giovanelli, R.
name: Haynes, M. P.
name: Kent, B. R.
name: Saintonge, A.
name: Stierwalt, S.
name: Altaf, A.
name: Balonek, T.
name: Brosch, N.
name: Brown, S.
name: Catinella, B.
name: Furniss, A.
name: Goldstein, J.
name: Hoffman, G. L.
name: Koopmann, R. A.
name: Kornreich, D. A.
name: Mahmood, B.
name: Martin, A. M.
name: Masters, K. L.
name: Mitschang, A.
name: Momjian, E.
name: Nair, P. H.
name: Rosenberg, J. L.
name: Walsh, B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first installment of HI sources extracted from the Arecibo Legacy Fast ALFA (ALFALFA) extragalactic survey, initiated in 2005. Sources have been extracted from 3-D spectral data cubes and then examined interactively to yield global HI parameters. A total of 730 HI detections are catalogued within the solid angle 11h44m < R.A.(J2000) < 14h00m and +12deg < Dec.(J2000) < +16deg, and redshift range -1600 \kms < cz < 18000 \kms. In comparison, the HI Parkes All-Sky Survey (HIPASS) detected 40 HI signals in the same region. Optical counterparts are assigned via examination of digital optical imaging databases. ALFALFA HI detections are reported for three distinct classes of signals: (a) detections, typically with S/N > 6.5; (b) high velocity clouds in the Milky Way or its periphery; and (c) signals of lower S/N (to ~ 4.5) which coincide spatially with an optical object of known similar redshift. Although this region of the sky has been heavily surveyed by previous targeted observations based on optical flux-- or size-- limited samples, 69% of the extracted sources are newly reported HI detections. The resultant positional accuracy of HI sources is 20" (median). The median redshift of the sample is ~7000 \kms and its distribution reflects the known local large scale structure including the Virgo cluster. Several extended HI features are found in the vicinity of the Virgo cluster. A small percentage (6%) of HI detections have no identifiable optical counterpart, more than half of which are high velocity clouds in the Milky Way vicinity; the remaining 17 objects do not appear connected to or associated with any known galaxy.
description: Astronomical Journal, in press
Measurement of material isotopics and atom number ratio with alpha-particle spectroscopy for the NIFFTE fission Time Projection Chamber actinide target
Creators: name: Monterial, M.
name: Schmitt, K. T.
name: Prokop, C.
name: Leal-Cidoncha, E.
name: Anastasiou, M.
name: Bowden, N. S.
name: Bundgaard, J.
name: Casperson, R. J.
name: Cebra, D. A.
name: Classen, T.
name: Dongwi, D. H.
name: Fotiades, N.
name: Gearhart, J.
name: Geppert-Kleinrath, V.
name: Greife, U.
name: Hagmann, C.
name: Heffner, M.
name: Hensle, D.
name: Higgins, D.
name: Isenhower, L. D.
name: Kazkaz, K.
name: Kemnitz, A.
name: King, J.
name: Klay, J. L.
name: Latta, J.
name: Loveland, W.
name: Magee, J. A.
name: Manning, B.
name: Mendenhall, M. P.
name: Mosby, S.
name: Neudecker, D.
name: Sangiorgio, S.
name: Seilhan, B.
name: Snyder, L.
name: Tovesson, F.
name: Towell, R. S.
name: Walsh, N.
name: Watson, T. S.
name: Yao, L.
name: Younes, W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present the results of a measurement of isotopic concentrations and atomic number ratio of a double-sided actinide target with alpha-spectroscopy and mass spectrometry. The double-sided actinide target, with primarily Pu-239 on one side and U-235 on the other, was used in the fission Time Projection Chamber (fissionTPC) for a measurement of the neutron-induced fission cross-section ratio between the two isotopes. The measured atomic number ratio is intended to provide an absolute normalization of the measured fission cross-section ratio. The Pu-239/U-235 atom number ratio was measured with a combination of mass spectrometry and alpha-spectroscopy with a planar silicon detector with uncertainties of less than 1%.
description: 8 pages, 5 figures, 6 tables
Additional file 9 of A cis-regulatory element promoting increased transcription at low temperature in cultured ectothermic Drosophila cells
Creators: name: Bai, Yu
name: Caussinus, Emmanuel
name: Leo, Stefano
name: Bosshardt, Fritz
name: Myachina, Faina
name: Rot, Gregor
name: Robinson, Mark D.
name: Lehner, Christian F.
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 9: Fig. S3. Temperature-regulated alternative polyadenylation. (A-D) 3′ RNA-Seq data obtained from S2R+ cells (A, C) and adult male flies (B, D) after 24 h of incubation at different temperatures (11, 14, 25 and 30 °C) was used for an analysis of temperature effects on the choice of polyadenylation sites (PASs). (A,B) Histograms illustrate the frequency of alternative polyadenylation (APA) in S2R+ cells (A) and adult male flies (B), as detected after pooling all data obtained at the different temperatures from the three biological replicates. In total, 14,669 PASs were detected in S2R+ cells, and 22,378 in adult male flies. These were assigned (see Materials and Methods) to a total of 7495 and 10,757 expressed genes in S2R+ cells and adult male flies, respectively. (C,D) Temperature effects on APA. For genes with multiple PASs, we compared the two PASs with highest presence (read counts) across all conditions and required the log2 fold change to be in opposite directions when comparing the read counts at the high (25 and 30 °C) with those at the low (11 and 14 °C) temperatures. The scatter plots display the fold changes at the proximal and distal of these two most strongly affected PASs in S2R+ cells (C) and adult flies (D). Blue dots represent genes (class I), where preference of the distal over the proximal PAS at low temperature is significant in comparison to the high temperature. Red dots represent genes (class II), where temperature change has a significant effect in opposite direction.
LaBH$_{8}$: the first high-T$_{c}$ low-pressure superhydride
Creators: name: Di Cataldo, Simone
name: Heil, Christoph
name: von der Linden, Wolfgang
name: Boeri, Lilia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In the last five years a large number of new high-temperature superconductors have been predicted and experimentally discovered among hydrogen-rich crystals, at pressures which are way too high to meet any practical application. In this work, we report the computational prediction of a hydride superconductor, LaBH$_{8}$, with a T$_{c}$ of 126 K at a pressure of 50 GPa, thermodynamically stable above 100 GPa, and dynamically stable down to 40 GPa, an unprecedentedly low pressure for high-T$_{c}$ hydrides. LaBH$_{8}$ can be seen as a ternary sodalite-like hydride, in which a metallic hydrogen sublattice is stabilized by the chemical pressure exerted by the guest elements. The combination of two elements with different atomic sizes in LaBH$_{8}$ realizes a more efficient packing of atoms than in binary sodalite hydrides. A suitable choice of elements may be exploited to further reduce the stabilization pressure to ambient conditions.
description: 6 pages, 4 figures, 1 table
A certain class of Laplace transforms with applications to reaction and reaction-diffusion equations
Creators: name: Mathai, A. M.
name: Saxena, R. K.
name: Haubold, H. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 33C20; 33C90

description: A class of Laplace transforms is examined to show that particular cases of this class are associated with production-destruction and reaction-diffusion problems in physics, study of differences of independently distributed random variables and the concept of Laplacianness in statistics, alpha-Laplace and Mittag-Leffler stochastic processes, the concepts of infinite divisibility and geometric infinite divisibility problems in probability theory and certain fractional integrals and fractional derivatives. A number of applications are pointed out with special reference to solutions of fractional reaction and reaction-diffusion equations and their generalizations.
description: LaTeX, 12 pages, corrected typos
Ο εθισμός στα μέσα κοινωνικής δικτύωσης και η επίδρασή του στην εργασιακή ανία και εργασιακή δέσμευση
Creators: name: Βαγκότη, Ευαγγελία Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: εθισμός διαδικτύου
εργασιακή ανία
εργασιακή δέσμευση
Internet addiction
work boredom
work engagement

description: Η παρούσα διπλωματική εργασία, πραγματεύεται το θέμα του εθισμού των μέσων κοινωνικής δικτύωσης και η επίδρασή του στην εργασιακή ανία και τη εργασιακή δέσμευση εν ώρα εργασίας. Πραγματοποιώντας μια έρευνα με ερωτηματολόγια αναπτύσσεται το θέμα και γίνεται αναφορά στις έννοιες του εθισμού, της εργασιακής ανίας, εργασιακής δέσμευσης και η ανάλυση των προαναφερόμενων ορισμών με έρευνες στην παγκόσμια βιβλιογραφία σε σχέση με τα αποτελέσματα που βγήκαν και από την παρούσα έρευνα. Ακόμα αναφέρεται η διεξαγωγή της έρευνας που πραγματοποιήθηκε με το μοίρασμα των εκατόν εξήντα οχτώ ερωτηματολογίων που ως αποτέλεσμα είχε οι έρευνες τόσων χρόνων έχουν αποδείξει τον εθισμό στο διαδίκτυο και στα μέσα κοινωνικής δικτύωσης. Αυτό που παρατηρήθηκε στο δείγμα των εκατόν εξήντα οχτώ ερωτηθέντων της συγκεκριμένης έρευνας κατά την διάρκεια των εργασιακών τους καθηκόντων φαίνεται πως και η εργασιακή ανία όπως και η εργασιακή δέσμευση σχετίζονται με τον εθισμό. Ακόμα αναφέρονται κάποιες πιθανές προτάσεις που θα μπορούσαν να ακολουθήσουν οι οργανισμοί επιχειρήσεις για την καλύτερη επίδοση και ευχαρίστηση των εργαζομένων
description: The subject of the present diplomatic work, is the addiction of social networks and the relations with work boredom and work engagement and how they react on the hours of work. Realizing a survey with questionnaires developed the subject and refer to the definitions of the terminologies of addiction, work boredom, work engagement and analysis of above definitions with research in the world bibliography in combining results also came from this investigation. Furthermore refers is conducting the survey conducted by the sharing of one hundred sixty-eight questionnaires and the result was that the investigations of so many years have proven the internet addiction of social networks. Is observed in the sample of one hundred sixty-eight respondents of this study during their working tasks seem that the work boredom and the work engagement have positive correlation with addiction of social networks. Still is reported the methodology that was followed, the tools that were used, the conclusions and likely proposals that they could follow the organisms enterprises for the better record and pleasure of workers
Additional file 1 of Systematic review and meta-analysis of candidate gene association studies of benign prostate hyperplasia
Creators: name: Lin, Lin
name: Li, Pugui
name: Liu, Xin
name: Xie, Xiuyuan
name: Liu, Liping
name: Singh, Anjani Kumar
name: Singh, Himanshu Narayan
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: Additional file 1. Figure S1. Meta-analysis of included studies reporting on CYP17 polymorphism in BPH susceptibility compared with controls. Figure S2. Meta-analysis of included studies reporting on ACE gene polymorphism in BPH susceptibility compared with controls. Figure S3. Meta-analysis of included studies reporting on VDR Taq1 polymorphism in BPH susceptibility compared with controls. Figure S4. Meta-analysis of included studies reporting on VDR bsm1 polymorphism in BPH susceptibility compared with controls. Figure S5. Meta-analysis of included studies reporting on VDR APa1 polymorphism in BPH susceptibility compared with controls. Figure S6. Meta-analysis of included studies reporting on VDR Fok1 polymorphism in BPH susceptibility compared with controls.
Unveiling the atomic hydrogen-halo mass relation via spectral stacking
Creators: name: Chauhan, Garima
name: Lagos, Claudia del P.
name: Stevens, Adam R. H.
name: Bravo, Matias
name: Rhee, Jonghwan
name: Power, Chris
name: Obreschkow, Danail
name: Meyer, Martin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Measuring the HI-halo mass scaling relation (HIHM) is fundamental to understanding the role of HI in galaxy formation and its connection to structure formation. While direct measurements of the HI mass in haloes are possible using HI-spectral stacking, the reported shape of the relation depends on the techniques used to measure it (e.g. monotonically increasing with mass versus flat, mass-independent). Using a simulated HI and optical survey produced with the SHARK semi-analytic galaxy formation model, we investigate how well different observational techniques can recover the intrinsic, theoretically predicted, HIHM relation. We run a galaxy group finder and mimic the HI stacking procedure adopted by different surveys and find we can reproduce their observationally derived HIHM relation. However, none of the adopted techniques recover the underlying HIHM relation predicted by the simulation. We find that systematic effects in halo mass estimates of galaxy groups modify the inferred shape of the HIHM relation from the intrinsic one in the simulation, while contamination by interloping galaxies, not associated with the groups, contribute to the inferred HI mass of a halo mass bin, when using large velocity windows for stacking. The effect of contamination is maximal at Mvir~10^(12-12.5)Msol. Stacking methods based on summing the HI emission spectra to infer the mean HI mass of galaxies of different properties belonging to a group suffer minimal contamination but are strongly limited by the use of optical counterparts, which miss the contribution of dwarf galaxies. Deep spectroscopic surveys will provide significant improvements by going deeper while maintaining high spectroscopic completeness; for example, the WAVES survey will recover ~52% of the total HI mass of the groups with Mvir~10^(14)Msol compared to ~21% in GAMA.
description: 20 pages,16 figures. Paper submitted to MNRAS
Relativistic Jets in The Radio Reference Frame Image Database I: Apparent Speeds from the First Five Years of Data
Creators: name: Piner, B. G.
name: Mahmud, M.
name: Fey, A. L.
name: Gospodinova, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) We present the results of an analysis of relativistic jet apparent speeds from VLBI images in the Radio Reference Frame Image Database (RRFID). The images are snapshot VLBI images at 8 and 2 GHz using the VLBA plus up to ten additional antennas that provide global VLBI coverage. We have analyzed the 8 GHz images from the first five years of the database (1994-1998), for all sources observed at three or more epochs during this time range. This subset comprises 966 images of 87 sources. The sources in this subset have an average of 11 epochs of observation over the years 1994-1998, with the best-observed sources having 19 epochs. About half of the sources in this RRFID kinematic survey have not been previously studied with multi-epoch VLBI observations. We have measured apparent speeds for a total of 184 jet components in 77 sources, of which the best-measured 94 component speeds in 54 sources are used in the final analysis. The apparent speed distribution shows a peak at low apparent speeds (consistent with stationary components), a tail extending out to apparent speeds of about 30c, and a mean apparent speed of 3.6c. A total of 36 of the sources in this paper are also included in the 2 cm VLBA survey by Kellermann et al., with similar angular resolution, sensitivity, and time range. For those sources, we present a detailed component-by-component comparison of the apparent speeds measured by the 2 cm survey and those measured in this paper. Many of the independent apparent speed measurements agree very well, but for approximately 25% of the components we find significant differences in the apparent speeds measured by the two surveys. The leading cause of these discrepancies are differences in how the two surveys have identified jet components from epoch-to-epoch.
description: accepted to AJ, 41 pages, emulateapj style
Coulomb parameters and photoemission for the molecular metal TTF-TCNQ
Creators: name: Cano-Cortés, Laura
name: Dolfen, Andreas
name: Merino, Jaime
name: Behler, Jörg
name: Delley, Bernard
name: Reuter, Karsten
name: Koch, Erik
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We employ density-functional theory to calculate realistic parameters for an extended Hubbard model of the molecular metal TTF-TCNQ. Considering both intra- and intermolecular screening in the crystal, we find significant longer-range Coulomb interactions along the molecular stacks, as well as inter-stack coupling. We show that the long-range Coulomb term of the extended Hubbard model leads to a broadening of the spectral density, likely resolving the problems with the interpretation of photoemission experiments using a simple Hubbard model only.
description: 4 pages, 2 figures
Charmonium in strongly coupled quark-gluon plasma
Creators: name: Young, Clint
name: Shuryak, Edward
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The growing consensus that a strongly-coupled quark-gluon plasma (sQGP) has been observed at the SPS and RHIC experiments suggests a different framework for examining heavy quark dynamics. We present both semi-analytical treatment of Fokker-Planck (FP) evolution in pedagogical examples and numerical Langevin simulations of evolving charm quark-antiquark pairs on top of a hydrodynamically expanding fireball. In this way, we may conclude that the survival probability of bound charmonia states is greater than previously estimated, as the spatial equilibration of pairs proceeds through a ``slowly dissolving lump'' stage related to the pair interaction.
description: 12 pages, 13 figures
How we are leading a 3-XORSAT challenge: from the energy landscape to the algorithm and its efficient implementation on GPUs
Creators: name: Bernaschi, M.
name: Bisson, M.
name: Fatica, M.
name: Marinari, E.
name: Martin-Mayor, V.
name: Parisi, G.
name: Ricci-Tersenghi, F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Data Structures and Algorithms (cs.DS)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: A recent 3-XORSAT challenge required to minimize a very complex and rough energy function, typical of glassy models with a random first order transition and a golf course like energy landscape. We present the ideas beyond the quasi-greedy algorithm and its very efficient implementation on GPUs that are allowing us to rank first in such a competition. We suggest a better protocol to compare algorithmic performances and we also provide analytical predictions about the exponential growth of the times to find the solution in terms of free-energy barriers.
description: 7 pages, 7 figure, EPL format + SM (2 pages)
Constraining mornings & evenings on distant worlds: a new semi-analytical approach and prospects with transmission spectroscopy
Creators: name: Espinoza, Néstor
name: Jones, Kathryn
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The technique of transmission spectroscopy -- the variation of the planetary radius with wavelength due to opacity sources in the planet's terminator region -- has been to date one of the most successful in the characterization of exoplanet atmospheres, providing key insights into the composition and structure of these distant worlds. A common assumption made when using this technique, however, is that the variations are the same in the entire terminator region. In reality, the morning and evening terminators might have distinct temperature, pressure and thus compositional profiles due to the inherent 3-D nature of the planet which would, in turn, give rise to different spectra on each side of it. Constraining those might be fundamental for our understanding of not only the weather patterns in these distant worlds, but also of planetary formation signatures which might only be possible to extract once these features are well understood. Motivated by this physical picture, in this work we perform a detailed study on the observational prospects of detecting this effect. We present an open-source semi-analytical framework with which this information can be extracted directly from transit lightcurves, and perform a detailed study on the prospects of detecting the effect with current missions such as TESS and upcoming ones such as JWST. Our results show that these missions show great promise for the detection of this effect. Transmission spectroscopy studies with JWST, in particular, could provide spectra of each of the limbs allowing us to convey 3-D information previously accessible only via phase-curves.
description: 29 pages, 9 figures. AJ accepted version
Η κρίση των πυραύλων της Κούβας, 1962: αίτια και συνέπειες
Creators: name: Φραγκίδης, Δημοσθένης Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Ψυχρός Πόλεμος-ΗΠΑ
Κούβα
Cold War-USA
Cuba

description: Στόχος της εργασίας είναι να παρουσιαστούν τα αίτια και οι συνέπειες της κρίσης των πυραύλων της Κούβας το 1962. Αναμφίβολα, η συγκεκριμένη κρίση αποτέλεσε καμπή στην εξέλιξη του Ψυχρού Πολέμου, εφόσον επηρέασε σημαντικά την πορεία του. Στην εργασία δεν θα μελετηθούν μονάχα τα γεγονότα της κρίσης αλλά θα αναλυθεί και το ιστορικό πλαίσιό της μέσα από την παρουσίαση των σχέσεων ΗΠΑ-Κούβας, ΕΣΣΔ - Κούβας και ΗΠΑ – ΕΣΣΔ στο πρώτο και δεύτερο μέρος. Στη συνέχεια, στο τρίτο μέρος θα παρουσιαστούν τα κύρια γεγονότα της κρίσης του Οκτωβρίου και στο τέλος θα επιχειρηθεί να αποσαφηνιστούν τα αίτια που οδήγησαν τις δυο υπερδυνάμεις στα πρόθυρα ενός πυρηνικού πολέμου ενώ θα αναλυθούν και οι συνέπειες της κρίσης στις σχέσεις των τριών εμπλεκομένων κρατών. Παράλληλα, η μελέτη της εν λόγω εργασίας θα επιτρέψει στον αναγνώστη να γνωρίσει τον τρόπο διαχείρισης της κρίσης από τους ηγέτες των δυο υπερδυνάμεων
description: Aim of the present dissertation is to represent the causes and the aftermath of the Cuban missile crisis in 1962. Without doubt this crisis represent a turning point in the development of the Cold War, considering that it had an important impact on it’s course. In this dissertation will be represented not only the events of the crisis but will be analyzed the historical context of the crisis through the presentation of the relations between USA – Cuba, USSR – Cuba and USA – USSR in the first and the second part of the thesis. In the third part of the dissertation will be represented the main events of the October crisis, also at the final part will be attempted to be defined the reasons that led the two superpowers at the brink of a nuclear war and the impact that the crisis had on the relations between the three involved nations. Furthermore, the study of this dissertation will let the reader to know how the leaders of the two superpowers, John F. Kennedy and Nikita Khrushchev handle the crisis
Three intervening galaxy absorbers towards GRB060418: faint and dusty?
Creators: name: Ellison, Sara L.
name: Vreeswijk, Paul
name: Ledoux, Cedric
name: Willis, Jon P.
name: Jaunsen, Andreas
name: Wijers, Ralph A. M. J.
name: Smette, Alain
name: Fynbo, Johan P. U.
name: Moller, Palle
name: Hjorth, Jens
name: Kaufer, Andreas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an analysis of three strong, intervening Mg II absorption systems (z_abs = 0.603, 0.656, 1.107) towards the optical afterglow of gamma-ray burst (GRB) 060418. From high resolution UVES spectra we measure metal column densities and find that the highest redshift absorber exhibits a large amount of dust depletion compared with DLAs seen in QSO spectra. The intervening z_abs = 1.107 absorber is also unusual in exhibiting a clear 2175 A bump, the first time this feature has been definitively detected in a GRB spectrum. The GRB afterglow spectrum is best fit with a two component extinction curve: an SMC extinction law at z=1.49 (the redshift of the host) with E(B-V) = 0.07+-0.01 and a Galactic extinction curve at z ~ 1.1 with E(B-V) = 0.08+-0.01. We also present a moderately deep NTT R-band image of the GRB060418 field and spectroscopy of four galaxies within 1 arcminute. None of these objects has a redshift that matches any of the intervening absorbers, and we conclude that the galaxies responsible for the two intervening Mg II absorbers at z ~ 0.6 have luminosities ~<0.3 L^star.
description: Accepted for publication in MNRAS (Letters), 5 pages. Updated with more accurate host position
Detection of Aerosols at Microbar Pressures in an Exoplanet Atmosphere
Creators: name: Estrela, Raissa
name: Swain, Mark
name: Roudier, Gael
name: West, Robert
name: Sedaghati, Elyar
name: Valio, Adriana
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Formation of hazes at microbar pressures has been explored by theoretical models of exoplanet atmospheres to explain Rayleigh scattering and/or featureless transmission spectra, however observational evidence of aerosols in the low pressure formation environments has proved elusive. Here, we show direct evidence of aerosols existing at $\sim$1 microbar pressures in the atmosphere of the warm sub-Saturn WASP-69b using observations taken with Space Telescope Imaging Spectrograph (STIS) and Wide Field Camera 3 (WFC3) instruments on the Hubble Space Telescope. The transmission spectrum shows a wavelength-dependent slope induced by aerosol scattering that covers 11 scale heights of spectral modulation. Drawing on the extensive studies of haze in our Solar System, we model the transmission spectrum based on a scaled version of Jupiter's haze density profile to show that WASP-69b transmission spectrum can be produced by scattering from an approximately constant density of particles extending throughout the atmospheric column from 40 millibar to microbar pressures. These results are consistent with theoretical expectations based on microphysics of the aerosol particles that have suggested haze can exist at microbar pressures in exoplanet atmospheres.
description: 15 pages, 13 figures, accepted for publication in AJ
Simulations of Mixed Morphology Supernova Remnants With Anisotropic Thermal Conduction
Creators: name: Tilley, David A.
name: Balsara, Dinshaw S.
name: Howk, J. Christopher
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We explore the role of anisotropic thermal conduction on the evolution of supernova remnants through interstellar media with a range of densities via numerical simulations. We find that a remnant expanding in a dense environment can produce centre-bright hard x-ray emission within 20 kyr, and centre-bright soft x-ray emission within 60 kyr of the supernova event. In a more tenuous environment, the appearance of a centre-bright structure in hard x-rays is delayed until about 60 kyr. The soft x-ray emission from such a remnant may not become centre bright during its observable lifetime. This can explain the observations that show that mixed-morphology supernova remnants preferentially occur close to denser, molecular environments. Remnants expanding into denser environments tend to be smaller, making it easier for thermal conduction to make larger changes in the temperatures of their hot gas bubbles. We show that the lower temperatures make it very favorable to use high-stage ions as diagnostics of the hot gas bubbles in SNRs. In particular, the distribution of O VIII transitions from shell-bright at early epochs to centre-bright at later epochs in the evolution of an SNR expanding in a dense ISM when the physics of thermal conduction is included.
description: 8 pages, 5 figures, submitted to Monthly Notices
Three-dimensional multispectral stochastic image segmentation
Creators: name: Johnston, Brian Gerard
Publisher: name: University of British Columbia
Year: 2009

description: Current methods of lesion localization and quantification from magnetic resonance imaging, and other methods of computed tomography fall short of what is needed by clinicians to accurately diagnose pathology and predict clinical outcome. We investigate a method of lesion and tissue segmentation which uses stochastic relaxation techniques in three dimensions, using images from multiple image spectra, to assign partial tissue classification to individual voxels. The algorithm is an extension of the concept of Iterated Conditional Modes first used to restore noisy and corrupted images. Our algorithm requires a minimal learning phase and may incorporate prior organ models to aid in the segmentation. The algorithm is based on local neighbourhoods and can therefore be implemented in parallel to enhance its performance. Parallelism is achieved through the use of a datafiow image processing development package which allows multiple servers to execute in parallel.
การบริหารที่ดินวะกัฟในเขตกรุงเทพมหานครให้เกิดประโยชน์สูงสุด
Creators: name: สุกุลพัฒน์ คุ้มไพศาล, นดา ศรีสะอาด
Publisher: name: สำนักวิทยบริการ มหาวิทยาลัยสงขลานครินทร์ วิทยาเขตปัตตานี
Year: 2019
Subjects: การวะกัฟ, การบริหารที่ดินวะกัฟ, การใช้ประโยชน์สูงสุดและดีที่สุด, การศึกษาความเป็นไปได้ในการพัฒนาโครงการอสังหาริมทรัพย์บนที่ดินวะกัฟ, Waqf, Waqf land management, Highest and Best Use (HBU), project feasibility study on Waqf lands

description: วารสารวิทยบริการ มหาวิทยาลัยสงขลานครินทร์, 30, 2, 177-185
ธุรกิจเอ็สเอ็มอี (SMEs) กับการจัดการความสัมพันธ์ลูกค้าแบบอิเล็กทรอนิกส์ (E-CRM)
Creators: name: นิมารูนี หะยีวาเงาะ
Publisher: name: สำนักวิทยบริการ มหาวิทยาลัยสงขลานครินทร์ วิทยาเขตปัตตานี
Year: 2019
Subjects: การจัดการความสัมพันธ์ลูกค้าแบบอิเล็กทรอนิกส์, ธุรกิจ, วิสาหกิจขนาดกลางและขนาดย่อม, electronic customer relationship management, business, SMEs

description: วารสารวิทยบริการ มหาวิทยาลัยสงขลานครินทร์, 30, 2, 186-195
Mirage unification at TeV scale and natural electroweak symmetry breaking in minimal supersymmetry
Creators: name: Okumura, Ken-ichi
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a new minimal supersymmetric scenario with virtually no fine-tuning in the electroweak symmetry breaking. It favors light supersymmetric spectrum below a few TeV and predicts definite relations among stop and gaugino masses and LSP higgsino with $μ\lesssim 200$ GeV, which are within the reach of coming LHC experiment.
description: 4 pages, 2 figures, to appear in Proceedings of SUSY06, the 14th International Conference on Supersymmetry and the Unification of Fundamental Interactions, UC Irvine, California, 12-17 June 2006