cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Bestest Little Higgs
Creators: name: Schmaltz, Martin
name: Stolarski, Daniel
name: Thaler, Jesse
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: While little Higgs models provide an interesting way to address the hierarchy problem, concrete models in the literature typically face two major obstacles. First, the mechanism for generating a Higgs quartic coupling often leads to large violations of custodial symmetry. Second, there is a tension between precision electroweak observables in the gauge sector and fine-tuning in the top sector. In this work, we present a new little Higgs model which solves both of these problems. The model is based on an SO(6)xSO(6)/SO(6) coset space which has custodial symmetry built in. The Higgs quartic coupling takes a particularly simple form and does not suffer from the "dangerous singlet" pathology. We introduce a gauge breaking module which decouples the mass of gauge partners from the mass of top partners, allowing for natural electroweak symmetry breaking. The collider phenomenology is dominated by production and decay of the top partners, which are considerably lighter than in traditional little Higgs theories.
description: 40 pages, 7 figures
Symmetries, weak symmetries and related solutions of the Grad-Shafranov equation
Creators: name: Cicogna, Giampaolo
name: Pegoraro, Francesco
name: Ceccherini, Francesco
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We discuss a new family of solutions of the Grad--Shafranov (GS) equation that describe D-shaped toroidal plasma equilibria with sharp gradients at the plasma edge. These solutions have been derived by exploiting the continuous Lie symmetry properties of the GS equation and in particular a special type of "weak" symmetries. In addition, we review the continuous Lie symmetry properties of the GS equation and present a short but exhaustive survey of the possible choices for the arbitrary flux functions that yield GS equations admitting some continuous Lie symmetry. Particular solutions related to these symmetries are also discussed.
description: 8 pages, 4 figures
Parapaguridae Smith 1882
Creators: name: Lemaitre, R.
Publisher: name: Zenodo
Year: 1996
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Parapaguridae

description: Parapaguridae Smith, 1882 Key to genera of the family 1. 1972 2. 3. 1885 4. Posterior carapace mostly membranous; unpaired 3rd to 5th TODO TODO -- Posterior carapace calcified; paired (asymmetrical) 3rd to 5th pleopods...................................................................................... Bivalvopagurus Lemaitre, 1993 5. Shield about as broad as long, or slightly broader than long; rostrum bluntly triangular or broadly rounded; abdomen TODO -- Shield distinctly longer than broad; rostrum acutely triangular; abdomenstraight TsunogaipagurusOsawa, 1995 6. Shield distinctly broader than long; dactyls of ambulatory legs straight or nearly so; corneae strongly dilated; males with 2nd pleopod having short exopod and strongly twisted distal segment StrobopagurusLemaitre, 1989 -- Shield about as broad as long; dactyls of ambulatory legs curved; corneae moderately or weakly dilated; males with 2nd pleopods lacking exopod and distal segment not twisted (2nd pleopodsrarelyabsent).................................... . 7. Vestigial pleurobranch absent on last thoracic somite............................................................ 縭Vestigial pleurobranch present on each side of last thoracic somite ......................................SympagurusSmith,1883,s.s. 8. 縭 TODO TODO TODO TODO 9. Phyllobranchiate or intermediate gills; 4th segment of antennal peduncle armed with dorsodistal spine; length of ocular peduncles, including corneae, at least half length of shield........... Paragiopagurus n.gen. 縭Trichobranchiate gills; 4th segment of antennal peduncle unarmed; length of ocular peduncles, including corneae, less than half length of shield (except Parapagurus bouvieri Stebbing,1910)...................................................................................ParapagurusSmith,1879
description: Published as part of Lemaitre, R., 1996, Hermit crabs of the family Parapaguridae (Crustacea: Decapoda: Anomura) from Australia: species of Strobopagurus Lemaitre, 1989, Sympagurus Smith, 1883 and two new genera., pp. 163-221 in Records of the Australian Museum 48 (2) on pages 166-167, DOI: 10.3853/j.0067-1975.48.1996.286, http://zenodo.org/record/4654966
description: {"references": ["Smith, S. l., 1882. XVII. Report on the Crustacea. Part 1. Decapoda. Reports on the dredging, under the supervision of Alexander Agassiz, on the east coast of the United States, during the summer of 1880, by the U. S. Coast Survey Steamer \" Blake \", commander J. R. Bartlett U. S. N., commanding. Bulletin of the Museum of Comparative Zoology, Harvard College 10 (1): 1 - 108.", "Lemaitre, R., 1993. A new genus of Parapaguridae (Decapoda: Anomura). Crustacean Research 22: 11 - 20.", "Stebbing, T. R. R., 1910. General catalogue of South African Crustacea (Part 5 of S. A Crustacea, for the Marine Investigations in South Africa). Annals of the South African Museum 6 (4): 281 - 599."]}
Strobopagurus Lemaitre 1989
Creators: name: Lemaitre, R.
Publisher: name: Zenodo
Year: 1996
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Parapaguridae
Strobopagurus

description: Strobopagurus Lemaitre, 1989 Parapagurus.-De Saint Laurent, 1972: 101 (in part). Strobopagurus Lemaitre, 1989: 35. Type species by original designation: Sympagurus gracilipes A. Milne Edwards, 1891: 132. Gender: masculine. Diagnosis. Eleven pairs of phyllobranchiate or intermediate gills. Shield distinctly broader than long, weakly and evenly calcified. Eye-stalks stout. Corneae strongly dilated. Fourth segment of antennal peduncle unarmed. Epistomial spine absent. Right cheliped elongate, often slender; palm rounded mesially, with weakly to well delimited dorsolateral margin. Left cheliped usually weakly calcified on merus, carpus, and often proximal portion of palm. Ambulatory legs with dactyls straight or nearly so. Fourth pereopod with propodal rasp consisting of 1 row of corneous scales. Second abdominal somite with left pleuron terminating ventrally in small subtriangular lobe. Males with well developed paired 1st and 2nd gonopods; 1st gonopods each with short, broad subtriangular distal lobe; 2nd gonopods each with rudimentary exopod and strongly twisted distal segment. Species. Strobopagurus gracilipes (A. Milne Edwards, 1891), S. kilburni (Kensley, 1973), and S. sibogae (De Saint Laurent, 1972).
description: Published as part of Lemaitre, R., 1996, Hermit crabs of the family Parapaguridae (Crustacea: Decapoda: Anomura) from Australia: species of Strobopagurus Lemaitre, 1989, Sympagurus Smith, 1883 and two new genera., pp. 163-221 in Records of the Australian Museum 48 (2) on page 167, DOI: 10.3853/j.0067-1975.48.1996.286, http://zenodo.org/record/4654966
description: {"references": ["Lemaitre, R., 1989. Revision of the genus Parapagurus (Anomura: Paguroidea: Parapaguridae), including redescriptions of the western Atlantic species. Zoologische Verhandelingen 253: 1 - 106.", "Saint Laurent, M. de, 1972. Sur la famille des Parapaguridae Smith, 1882. Description de Typhlopagurus foresti gen. nov., et de quinze especes ou sous-especes nouvelles de Parapagurus Smith (Crustacea, Decapoda). Bijdragen tot de Dierkunde 42 (2): 97 - 123.", "Milne Edwards, A, 1891. Pagurides nouveaux des A 90 res. Campagnes scientifiques de S. A Le Prince de Monaco sur le yacht l'Hirondelle. Bulletin de la Societe Zoologique de France 16: 131 - 134.", "Kensley, B., 1973. A new species of hermit crab from Natal, South Africa (Decapoda, Anomura, Paguridae). Durban Museum Novitates 9 (19): 285 - 290."]}
Collective Phenomena in the LiHo_xY_{1-x}F4 Quantum Ising Magnet: Recent Progress and Open Questions
Creators: name: Gingras, Michel J. P.
name: Henelius, Patrik
Publisher: name: arXiv
Year: 2011
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Other Condensed Matter (cond-mat.other)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In LiHo_xY_{1-x}F4, the magnetic Holmium Ho^{3+} ions behave as effective Ising spins that can point parallel or antiparallel to the crystalline c-axis. The predominant inter-Holmium interaction is dipolar, while the Y^{3+} ions are non-magnetic. The application of a magnetic field Bx transverse to the c-axis Ising direction leads to quantum spin-flip fluctuations, making this material a rare physical realization of the celebrated transverse field Ising model. The problems of classical and transverse-field-induced quantum phase transitions in LiHo_xY_{1-x}F_4 in the dipolar ferromagnetic (x=1), diluted ferromagnetic (0.25
description: 15 pages, 2 figures. Submitted to J.Phys.:Condensed Matter; proceedings "International Conference on Frustration in Condensed Matter (ICFCM)", Sendai, Japan, January 11-14 2011
Orbital Angular Momentum in Noncollinear Second Harmonic Generation by off-axis vortex beams
Creators: name: Bovino, Fabio Antonio
name: Braccini, Matteo
name: Giardina, Maurizio
name: Sibilia, Concita
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We experimentally study the behavior of orbital angular momentum (OAM) of light in a noncollinear second harmonic generation (SHG) process. The experiment is performed by using a type I BBO crystal under phase matching conditions with femtosecond pumping fields at 830 nm. Two specular off-axis vortex beams carrying fractional orbital angular momentum at the fundamental frequency (FF) are used. We analyze the behavior of the OAM of the SH signal when the optical vortex of each input field at the FF is displaced from the beam's axis. We obtain different spatial configurations of the SH field, always carrying the same zero angular momentum.
description: 9 pages, 7 figures
About the Dedekind psi function in Pauli graphs
Creators: name: Planat, Michel R. P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Number Theory (math.NT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the commutation structure within the Pauli groups built on all decompositions of a given Hilbert space dimension $q$, containing a square, into its factors. The simplest illustrative examples are the quartit ($q=4$) and two-qubit ($q=2^2$) systems. It is shown how the sum of divisor function $σ(q)$ and the Dedekind psi function $ψ(q)=q \prod_{p|q} (1+1/p)$ enter into the theory for counting the number of maximal commuting sets of the qudit system. In the case of a multiple qudit system (with $q=p^m$ and $p$ a prime), the arithmetical functions $σ(p^{2n-1})$ and $ψ(p^{2n-1})$ count the cardinality of the symplectic polar space $W_{2n-1}(p)$ that endows the commutation structure and its punctured counterpart, respectively. Symmetry properties of the Pauli graphs attached to these structures are investigated in detail and several illustrative examples are provided.
description: Proceedings of Quantum Optics V, Cozumel to appear in Revista Mexicana de Fisica
Information preserving structures: A general framework for quantum zero-error information
Creators: name: Blume-Kohout, Robin
name: Ng, Hui Khoon
name: Poulin, David
name: Viola, Lorenza
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum systems carry information. Quantum theory supports at least two distinct kinds of information (classical and quantum), and a variety of different ways to encode and preserve information in physical systems. A system's ability to carry information is constrained and defined by the noise in its dynamics. This paper introduces an operational framework, using information-preserving structures to classify all the kinds of information that can be perfectly (i.e., with zero error) preserved by quantum dynamics. We prove that every perfectly preserved code has the same structure as a matrix algebra, and that preserved information can always be corrected. We also classify distinct operational criteria for preservation (e.g., "noiseless", "unitarily correctible", etc.) and introduce two new and natural criteria for measurement-stabilized and unconditionally preserved codes. Finally, for several of these operational critera, we present efficient (polynomial in the state-space dimension) algorithms to find all of a channel's information-preserving structures.
description: 29 pages, 19 examples. Contains complete proofs for all the theorems in arXiv:0705.4282
With great power comes no responsibility : reflexive ideology through spectacle-violence in the superhero films of Marvel Studios
Creators: name: Hatch, Kevin
Publisher: name: University of British Columbia
Year: 2014

description: This work critically interrogates the superhero films of Marvel Studios and their textual treatment of, and the ideological function of, violent action spectacle. In Chapter One, I trace a chronology of superhero films and their corresponding treatment of violence, up to the onset of Marvel Studios, and the release of Jon Favreau’s Iron Man in 2008. I argue that Marvel superhero films respond to the genre’s previously tenuous treatment of spectacle-violence in the face of 9/11 and other instances of sociopolitical violence. Instead, Marvel Studios reappropriates action-violence interludes as ‘safe’ sites for audience enjoyment, undiminished by sociopolitical reflection. In doing so, Marvel crafts a brand identity of ‘reflexive wit,’ further integrating comedy into action sequences, and foregrounding provocative, yet superficial, sociopolitical commentary. In doing so, the Marvel films discourage audience preoccupation with the politics or ethical ramifications of spectacle violence. The films court the sense that, through such reflexivity, no further reflection is necessary, allowing audiences to unrepentantly enjoy the action violence. In Chapter Two, I explore the narrative techniques employed in Marvel films to foster viewer connection with their superheroes. I argue that the Marvel films draw upon a blend of comic book textual references, mythic intertexts, and pathos and humour, to court a dichotomy of ‘mythic accessibility,’ coding their heroes as sympathetic, valorized, sanctioned, ‘acceptable’ agents of violence. As such, Marvel utilizes violent action spectacle to mediate dominant cultural ideologies. In Chapter Three, I discuss the resonance of this support for the heroic protagonist, arguing the Marvel films thematically perpetuate textual ideologies of deference and unquestioned subservience. Such ideological resonance extends not only to exceptional superheroes, but to the political superstructures they are affiliated with, which are, by proxy, equally valorized (namely, the United States military and NSA, by means of surrogate entity, ‘S.H.I.E.L.D.’). Ultimately, I argue that the Marvel films purportedly privilege an active audience, but subliminally endorse a passive, unreflective one. This allows for textual amplification not only in regards to the scope and intensity of spectacle violence and action combat, but the political intertexts ideologically mediated through said action sequences, rebranded as unreflective ‘fun.’
Compression-induced failure of electro-active polymeric thin films
Creators: name: De Tommasi, Domenico
name: Puglisi, Giuseppe
name: Zurlo, Giuseppe
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The insurgence of compression induces wrinkling in actuation devices based on EAPs thin films leading to a sudden decrease of performances up to failure. Based on the classical tension field theory for thin elastic membranes, we provide a general framework for the analysis of the insurgence of in-plane compression in membranes of electroactive polymers (EAPs). Our main result is the deduction of a (voltage-dependent) domain in the stretch space which represents tensile configurations. Under the assumption of Mooney-Rivlin materials, we obtain that for growing values of the applied voltage the domain contracts, vanishing at a critical voltage above which the polymer is wrinkled for any stretch configuration. Our approach can be easily implemented in numerical simulations for more complex material behaviors and provides a tool for the analysis of compression instability as a function of the elastic moduli.
description: (15 pages, 7 figures)
Clinical outcomes of short implants placed in the posterior maxilla with the indirect sinus elevation technique and in the posterior mandible : a retrospective study with up to 5-year follow up.
Creators: name: Nadji, Nabil
Publisher: name: University of British Columbia
Year: 2014

description: Purpose: This retrospective longitudinal study evaluates the 5-year survival and success rates of implants placed with the osteotome technique in the maxilla without bone grafting and to show that short implants (less than 10 mm) can be used to adequately treat the atrophic maxilla and mandible. Material and Methods: 926 implants were placed in the posterior maxilla with the osteotome technique and no added bone graft. This included a subset of 530 short 6 mm, 8 mm, and 10 mm implants. Maxillary implant restorations were splinted together if the implants were placed adjacent to each other. Maxillary crestal bone loss was evaluated at base line and subsequently at 12-month intervals up to 5 years. Also, 720 short 6 and 8 mm implant fixtures were placed in the posterior mandible with no bone graft. All mandibular implant restorations were splinted together. Mandibular crestal bone levels were evaluated at 12 months then at 1-2 year intervals up to 5 years. Results: The implant survival rate for maxillary implants was 97% up to 5 years follow-up. The implant success rate (less than or equal to 1 mm bone loss) ranged from 87.7% to 97% depending on the implant system and length of follow-up period. Short maxillary implants (n= 530) had survival and success rates similar to conventional length implants. Mandibular implants recorded an overall 5-year survival rate of 100 %. The overall cumulative success rate was 93.4% at 5 years. Conclusion: It can be concluded that short implants are an effective treatment modality in the resorbed mandible. Also, implant placement with the indirect sinus elevation technique without a bone graft is a highly successful procedure even when short implants are utilized.
Quantum quench dynamics of the Bose-Hubbard model at finite temperatures
Creators: name: Zhang, J. M.
name: Shen, C.
name: Liu, W. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study quench dynamics of the Bose-Hubbard model by exact diagonalization. Initially the system is at thermal equilibrium and of a finite temperature. The system is then quenched by changing the on-site interaction strength $U$ suddenly. Both the single-quench and double-quench scenarios are considered. In the former case, the time-averaged density matrix and the real-time evolution are investigated. It is found that though the system thermalizes only in a very narrow range of the quenched value of $U$, it does equilibrate or relax well in a much larger range. Most importantly, it is proven that this is guaranteed for some typical observables in the thermodynamic limit. In order to test whether it is possible to distinguish the unitarily evolving density matrix from the time-averaged (thus time-independent), fully decoherenced density matrix, a second quench is considered. It turns out that the answer is affirmative or negative according to the intermediate value of $U$ is zero or not.
description: preprint, 20 pages, 7 figures
Scale-Dependent Bias of Galaxies from Baryonic Acoustic Oscillations
Creators: name: Barkana, Rennan
name: Loeb, Abraham
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Baryonic acoustic oscillations (BAOs) modulate the density ratio of baryons to dark matter across large regions of the Universe. We show that the associated variation in the mass-to-light ratio of galaxies should generate an oscillatory, scale-dependent bias of galaxies relative to the underlying distribution of dark matter. A measurement of this effect would calibrate the dependence of the characteristic mass-to-light ratio of galaxies on the baryon mass fraction in their large scale environment. This bias, though, is unlikely to significantly affect measurements of BAO peak positions.
description: 6 pages, 3 figures, submitted to MNRAS
Searching for Hydrogen in Type Ib Supernovae
Creators: name: James, Spencer
name: Baron, E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present synthetic spectral fits of the typical Type Ib SN 1999dn and the Hydrogen Rich Ib SN 2000H using the generalized non-local thermodynamic equilibrium stellar atmospheres code \phx. We fit model spectra to five epochs of SN 1999dn ranging from ten days pre-maximum light to 17 days post-maximum light and the two earliest epochs of SN 2000H available, maximum light and six days post-maximum. Our goal is to investigate the possibility of hydrogen in Type Ib Supernovae (SNe Ib), specifically a feature around 6200Å which has previously been attributed to high velocity H-alpha. In earlier work on SN 1999dn we found the most plausible alternative to H-alpha to be a blend of Si II and Fe II lines which can be adjusted to fit by increasing the metallicity. Our models are simple; they assume a powerlaw density profile with radius, homologous expansion, and solar compositions. The helium core is produced by burning 4H --> He in order to conserve nucleon number. For models with hydrogen the outer skin of the model consists of a shell of solar composition. The hydrogen mass of the standard solar composition shell is M_H less than about 0.001 times the mass of the sun in SN 1999dn and M_H less than about 0.2 times the mass of the sun for SN 2000H. Our models fit the observed spectra reasonably well, successfully reproducing most features including the characteristic He I absorptions. The hydrogen feature in SN 1999dn is clear, but much more pronounced in SN 2000H. We discuss a possible evolutionary scenario that accounts for the dichotomy in the hydrogen shell mass between these two supernovae.
description: 20 pages, 11 figures, ApJ, in press
EMANDOSHLAR OILASINING ASOSIY TURKUM VA TURLARI. TARQALISHI VA AHAMIYATI
Creators: name: Odilbekova, Mohinur
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada Emandoshlar (Fagaceae) oilasining umumiy tavsifi, sistematik o‘rni, asosiy turkum va turlari, ularning tarqalishi va inson faoliyatidagi ahamiyati yoritilgan. Oilaga mansub daraxt va butalar ekologik, iqtisodiy va manzarali ahamiyatga ega.
On the restricted projective objects in the affine category O at the critical level
Creators: name: Fiebig, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B67, 81R10

description: This article gives both an overview and supplements the articles [AF08] and [AF09] on the critical level category O over an affine Kac-Moody algebra. In particular, we study the restricted projective objects and review the restricted reciprocity and linkage principles.
description: 20 pages, based on a talk at the conference "Representation Theory of Algebraic Groups and Quantum Groups '10" at the University of Nagoya
Large-Time Decay of the Soft Potential relativistic Boltzmann equation in $\R^3_x$
Creators: name: Strain, Robert M.
name: Zhu, Keya
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: For the relativistic Boltzmann equation in $\R^3_x$, this work proves the global existence, uniqueness, positivity, and optimal time convergence rates to the relativistic Maxwellian for solutions which start out sufficiently close under the general physical soft potential assumption proposed in 1988 by Dudy{ń}ski and Ekiel-Je{ż}ewska.
description: 34 pages
The unbearable lightness of faith : Wang Tao's attitudes towards Christianity
Creators: name: Huang, Xuan
Publisher: name: University of British Columbia
Year: 2014

description: The Christian faith of Wang Tao 王韜 (1823-1897) has long been a focus of study among scholars. Throughout his life, Wang displayed different or even contradictory attitudes towards Christianity, at once praising and criticizing the religion to which he officially converted. Wang’s faith seemed to waver according to circumstances and hence he is often viewed as an opportunist. In addition, his wavering attitudes towards Christianity reflect the complexity witnessed in the dissemination of Christianity in late-Qing China and serve to underscore the problem of using “conversion” as a marker of one’s religious identity. Wang’s differing attitudes towards Christianity thus complicate our understanding of what it means to be a “true Christian” as well as what constitutes “faith” and one’s “religious identity.” Rather than treating religious identities as fixed entities, I argue that we should think of them as spectrums, along which individuals might locate themselves differently depending on their current circumstances.
The Lyman-alpha emission of high-z damped Lyman-alpha systems
Creators: name: Rahmani, H.
name: Srianand, R.
name: Noterdaeme, P.
name: Petitjean, P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using a spectral stacking technique we searched for the average \lya emission from high-z Damped \lya (DLA) galaxies detected in the Sloan Digital Sky Survey QSO spectra. We used a sample of 341 DLAs of mean redshift = 2.86 and log N(HI) > 20.62 to place a 3$σ$ upper limit of 3.0 \times 10^{-18} erg s^{-1} cm^{-2} on the \lya flux emitted within $\sim$1.5 arcsec (or 12 kpc) from the QSO line of sight. This corresponds to an average \lya luminosity of < 2 \times 10^{41} erg s^{-1} or 0.03 $L_\star$(\lya). This limit is deeper than the limit of most surveys for faint \lya emitters. The lack of \lya emission in DLAs is consistent with the in situ star formation, for a given N(HI), being less efficient than what is seen in local galaxies. Thus, the overall DLA population seems to originate from the low luminosity end of the high redshift \lya emitting galaxies and/or to be located far away from the star forming regions. The latter may well be true since we detect strong OVI absorption in the stacked spectrum, indicating that DLAs are associated with a highly ionized phase possibly the relics of galactic winds and/or originating from cold accretion flows. We find the contribution of DLA galaxies to the global star formation rate density to be comparatively lower than that of Lyman Break Galaxies.
description: 5 pages, 3 figures; Accepted for publication in MNRAS
A renormalization group decoding algorithm for topological quantum codes
Creators: name: Duclos-Cianci, Guillaume
name: Poulin, David
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Topological quantum error-correcting codes are defined by geometrically local checks on a two-dimensional lattice of quantum bits (qubits), making them particularly well suited for fault-tolerant quantum information processing. Here, we present a decoding algorithm for topological codes that is faster than previously known algorithms and applies to a wider class of topological codes. Our algorithm makes use of two methods inspired from statistical physics: renormalization groups and mean-field approximations. First, the topological code is approximated by a concatenated block code that can be efficiently decoded. To improve this approximation, additional consistency conditions are imposed between the blocks, and are solved by a belief propagation algorithm.
The impact of gas inflows on star formation rates and metallicities in barred galaxies
Creators: name: Ellison, Sara L.
name: Nair, Preethi
name: Patton, David R.
name: Scudder, Jillian M.
name: Mendel, J. Trevor
name: Simard, Luc
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The star formation rates (SFRs) and metallicities of a sample of 294 galaxies with visually classified, strong, large-scale bars are compared to a control sample of unbarred disk galaxies selected from the Sloan Digital Sky Survey Data Release 4. The fibre (inner few kpc) metallicities of barred galaxies are uniformly higher (at a given mass) than the unbarred sample by ~0.06 dex. However, the fibre SFRs of the visually classified barred galaxies are higher by about 60% only in the galaxies with total stellar mass log M > 10. The metal enhancement at log M<10 without an accompanying increase in the SFR may be due to a short-lived phase of early bar-triggered star formation in the past, compared to on-going star formation rate enhancements in higher mass barred galaxies. There is no correlation between bar length or bar axial ratio with the enhancement of the star formation rate. In order to assess the relative importance of star formation triggered by bars and galaxy-galaxy interactions, SFRs are also determined for a sample of close galaxy pairs. Both mechanisms appear to be similarly effective at triggering central star formation for galaxies with log M>10. However, due to the much lower fraction of pairs than bars, bars account for ~3.5 times more triggered central star formation than interactions.
description: Accepted for publication in MNRAS. Compilation problem fixed from original version
Varying alpha from N-body Simulations
Creators: name: Li, Baojiu
name: Mota, David F.
name: Barrow, John D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have studied the Bekenstein-Sandvik-Barrow-Magueijo (BSBM) model for the spatial and temporal variations of the fine structure constant, alpha, with the aid of full N-body simulations which explicitly and self-consistently solve for the scalar field driving the alpha-evolution. We focus on the scalar field (or equivalently alpha) inside the dark matter halos and find that the profile of the scalar field is essentially independent of the BSBM model parameter. This means that given the density profile of an isolated halo and the background value of the scalar field, we can accurately determine the scalar field perturbation in that halo. We also derive an analytic expression for the scalar-field perturbation using the Navarro-Frenk-White halo profile, and show that it agrees well with numerical results, at least for isolated halos; for non-isolated halos this prediction differs from numerical result by a (nearly) constant offset which depends on the environment of the halo.
description: 11 pages, 6 figures
Beliefs on social distancing and face mask practices during the COVID-19 pandemic in low- and middle-income countries: a cross-sectional study
Creators: name: Harapan, Harapan
Publisher: name: figshare
Year: 2022
Subjects: subject: 119999 Medical and Health Sciences not elsewhere classified
subject: FOS: Other medical sciences

description: Questionnaire for "Beliefs on social distancing and face mask practices during the COVID-19 pandemic in low- and middle-income countries: a cross-sectional study" submitted to F1000Research.
Gravitational Instabilities in Two-Component Galaxy Disks with Gas Dissipation
Creators: name: Elmegreen, Bruce G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Growth rates for gravitational instabilities in a thick disk of gas and stars are determined for a turbulent gas that dissipates on the local crossing time. The scale heights are derived from vertical equilibrium. The accuracy of the usual thickness correction, 1/(1+kH), is better than 6% in the growth rate when compared to exact integrations for the gravitational acceleration in the disk. Gas dissipation extends the instability to small scales, removing the minimum Jeans length. This makes infinitesimally thin disks unstable for all Toomre-Q values, and reasonably thick disks stable at high Q primarily because of thickness effects. The conventional gas+star threshold, Qtot increases from ~1 without dissipation to 2 or 3 when dissipation has a rate equal to the crossing rate over a perturbation scale. Observations of Qtot~2-3 and the presence of supersonic turbulence suggest that disks are unstable over a wide range of scales. Such instabilities drive spiral structure if there is shear and clumpy structure if shear is weak; they may dominate the generation of turbulence. Feedback regulation of Qtot is complex because the stellar component does not cool; the range of spiral strengths from multiple arm to flocculent galaxies suggests that feedback is weak. Gravitational instabilities may have a connection to star formation even when the star formation rate scales directly with the molecular mass because the instabilities return dispersed gas to molecular clouds and complete the cycle of cloud formation and destruction. The mass flow to dense clouds by instabilities can be 10 times larger than the star formation rate.
description: 34 pages and 12 figures, ApJ, in press
Fathers of children with autism : the impact of a support group on fathers' stress, depression, coping, and marital satisfaction
Creators: name: Elfert, Miriam
Publisher: name: University of British Columbia
Year: 2014

description: The purpose of this study was to design and evaluate the impact of a support group for fathers of children with autism, using quantitative measures to examine participants’ psychological experiences. Twelve fathers of children with autism participated in the study, which employed a two-group pretest-posttest design and a measure of social validity. The two groups were comprised of six fathers each, who attended eight weekly 2-hour sessions that focused on various topics related to parenting a child with autism. Sample topics included fathers’ experiences with the diagnosis, dealing with the education system, the impact on personal and professional relationships of parenting a child with autism, and future hopes and fears. All participants completed the Beck Depression Inventory-II, the Dyadic Adjustment Scale (DAS), the Parenting Stress Index 4th Edition, the Life Orientation Test-Revised, the Ways of Coping Questionnaire, a demographic form, and a social validity questionnaire regarding participation in the group. Group 1 completed the formal test measures prior to the start of their group, upon completion, and 4 months later. Group 2 completed these measures prior to the start of their own group, and upon completion. Data were analyzed using a 2X2 mixed model analysis of variance with Group as the between-subjects factor and Time as the within-subjects factor. Results indicated no significant main effects for either Group or Time between baseline and post-treatment for any of the measures. However, there was a significant interaction effect for marital adjustment via the DAS, and follow-up independent sample t-tests showed a significant improvement for Group 2 only. For Group 1, paired samples t-tests indicated no change in scores between post-treatment and follow-up on any measure. Responses to the social validity measure indicated that all fathers found the groups to be meaningful and helpful, enjoyed listening to and sharing personal experiences with other men in similar circumstances, and strongly recommended a similar group to other fathers of children with autism. Results are discussed in terms of their contribution to the literature, limitations and cautions, and implications for practitioners and researchers who support and study fathers of children with autism.
title: Lemberg
title: Lemberg
Creators: name: Reichl-Ham, Claudia
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: o.P. Lemberg
subject: Weltkrieg [1914-1918]
subject: Lʹviv (Ukraine)
subject: World War, 1914-1918

description: In World War I Lemberg (German: Lemberg, Ukrainian: Lviv, Polish: Lwów) played an important role as a political and administrative center of Galicia and was of great strategic significance as one of the biggest garrisons of Austria-Hungary in the east. The focus of Polish and Ukrainian national movements, Lemberg saw rising nationalist and antisemitic tensions, which were fostered by an ever more precarious supply situation and led to a fraternal war at the end of World War I.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Swift-BAT Survey of Galactic Sources: Catalog and Properties of the populations
Creators: name: Voss, R.
name: Ajello, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the populations of X-ray sources in the Milky Way in the 15-55 keV band using a deep survey with the BAT instrument aboard the Swift observatory. We present the logN-logS distributions of the various source types and we analyze their variability and spectra. For the low-mass X-ray binaries (LMXBs) and the high-mass X-ray binaries (HMXBs) we derive the luminosity functions to a limiting luminosity of L_X~7 times10^{34} erg s/s. Our results confirm the previously found flattening of the LMXB luminosity function below a luminosity of L_X~10^{37} erg s/s. The luminosity function of the HMXBs is found to be significantly flatter in the 15-55 keV band than in the 2-10 keV band. From the luminosity functions we estimate the ratios of the hard X-ray luminosity from HMXBs to the star-formation rate, and the LMXB luminosity to the stellar mass. We use these to estimate the X-ray emissivity in the local universe from X-ray binaries and show that it constitutes only a small fraction of the hard X-ray background.
description: 21 pages, accepted by ApJ
A Serrin-type regularity criterion for the Navier-Stokes equations via one velocity component
Creators: name: Zhang, Zujin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q30, 35B65, 76D05

description: We study the Cauchy problem for the 3D Navier-Stokes equations, and prove some scalaring-invariant regularity criteria involving only one velocity component.
description: 11 pages, to appear in CPAA
title: Governments, Parliaments and Parties (Austria)
title: Governments, Parliaments and Parties (Austria)
Creators: name: Boyer, John W.
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Österreich-Ungarn
subject: Weltkrieg [1914-1918]
subject: Politik
subject: Austria--Politics and government--1867-1918
subject: World War, 1914-1918--Austria

description: The closing of the parliament in Vienna in spring 1914 led to the consolidation of a wartime regime that was at once autocratic, decentralized, and poorly equipped to handle the demands of competing power centers, both within the government and throughout the empire. Yet the political parties did not remain passive during the war. As opportunities for political life reopened in 1916 and 1917, the irreconcilable grievances and visions of these parties overwhelmed the administrative and political efficacy of the empire and contributed significantly to the disintegration of the monarchy in 1918.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Boundary operators in the one-matrix model
Creators: name: Bourgine, Jean-Emile
name: Ishiki, Goro
name: Rim, Chaiho
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The one matrix model is known to reproduce in the continuum limit the (2,2p+1) minimal Liouville gravity. Recently, two of the authors have shown how to construct arbitrary critical boundary conditions within this matrix model. So far, between two such boundary conditions only one boundary operator was constructed. In this paper, we explain how to construct all the set of boundary operators that can be inserted. As a consistency check, we reproduce the corresponding Liouville boundary 2pt function from the matrix model correlator. In addition, we remark a connection between a matrix model relation and the boundary ground ring operator insertion in the continuum theory.
description: 18 pages, 3 figures
Quadrature noise in light propagating through a cold 87Rb atomic gas
Creators: name: Horrom, Travis
name: Lezama, Arturo
name: Balik, Salim
name: Havey, Mark D.
name: Mikhailov, Eugeniy E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report on the study of the noise properties of laser light propagating through a cold 87Rb atomic sample held in a magneto-optical trap. The laser is tuned around the Fg = 2 \rightarrow Fe = 1, 2 D1 transitions of 87Rb. We observe quadrature-dependent noise in the light signal, an indication that it may be possible to produce squeezed states of light. We measure the minimum and maximum phase-dependent noise as a function of detuning and compare these results to theoretical predictions to explore the best conditions for light squeezing using cold atomic Rb.
Too Little, Too Late: How the Tidal Evolution of Hot Jupiters affects Transit Surveys of Clusters
Creators: name: Debes, John H.
name: Jackson, Brian
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The tidal evolution of hot Jupiters may change the efficiency of transit surveys of stellar clusters. The orbital decay that hot Jupiters suffer may result in their destruction, leaving fewer transiting planets in older clusters. We calculate the impact tidal evolution has for different assumed stellar populations, including that of 47~Tuc, a globular cluster that was the focus of an intense HST search for transits. We find that in older clusters one expects to detect fewer transiting planets by a factor of two for surveys sensitive to Jupiter-like planets in orbits out to 0.5~AU, and up to a factor of 25 for surveys sensitive to Jupiter-like planets in orbits out to 0.08~AU. Additionally, tidal evolution affects the distribution of transiting planets as a function of semi-major axis, producing larger orbital period gaps for transiting planets as the age of the cluster increases. Tidal evolution can explain the lack of detected exoplanets in 47~Tuc without invoking other mechanisms. Four open clusters residing within the {\em Kepler} fields of view have ages that span 0.4-8~Gyr--if {\em Kepler} can observe a significant number of planets in these clusters, it will provide key tests for our tidal evolution hypothesis. Finally, our results suggest that observers wishing to discover transiting planets in clusters must have sufficient accuracy to detect lower mass planets, search larger numbers of cluster members, or have longer observation windows to be confident that a significant number of transits will occur for a population of stars.
description: 23 pages including 6 figures, accepted to ApJ
Open Data, ricerca scientifica e privatizzazione della conoscenza
Creators: name: Caso, Roberto
Publisher: name: Zenodo
Year: 2022
Subjects: Open Data
Public Sector Information
Open Science
Intellectual Property
Infrastructure

description: Questo scritto mira a delineare alcuni problemi riguardanti l’interazione tra politiche di apertura dei dati nel settore pubblico (Stato, pubblica amministrazione) e politiche sulla scienza aperta. Alcuni problemi riguardano la proprietà intellettuale: diritti di esclusiva riconducibili a brevetti per invenzione, diritti d’autore, segni distintivi, segreti commerciali. Altri problemi concernono il controllo esclusivo dei dati non ascrivibile alla proprietà intellettuale come disegnata dalle normative internazionali e nazionali (proprietà intellettuale in senso stretto), bensì a un controllo esclusivo derivante da forme anomale di proprietà intellettuale (“pseudo-proprietà intellettuale”) e da un potere di fatto connesso alla tecnologia. Un controllo esclusivo che può sommarsi alla (o essere indipendente dalla) protezione legislativa della proprietà intellettuale. La tesi di questo scritto è la seguente. Oltre a creare infrastrutture pubbliche e a creare standard aperti per testi, dati e codici occorre comprimere e riordinare i diritti di proprietà intellettuale che insistono sui dati. La compressione e il riordino della proprietà intellettuale è uno degli strumenti per provare a diminuire il potere di mercato degli oligopoli dei dati. Da questa politica normativa dipende il futuro dell’autonomia e della libertà delle istituzioni di ricerca (prime fra tutte: le università) e in, ultima analisi, della democrazia.
Improving Web Page Readability by Plain Language
Creators: name: Hussain, Walayat
name: Sohaib, Osama
name: Ali, Arif
Publisher: name: arXiv
Year: 2011
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: In today's world anybody who wants to access any information the first choice is to use the web because it is the only source to provide easy and instant access to information. However web readers face many hurdles from web which includes load of web pages, text size, finding related information, spelling and grammar etc. However understanding of web pages written in English language creates great problems for non native readers who have basic knowledge of English. In this paper, we propose a plain language for a local language (Urdu) using English alphabets for web pages in Pakistan. For this purpose we developed two websites, one with a normal English fonts and other in a local language text scheme using English alphabets. We also conducted a questionnaire from 40 different users with a different level of English language fluency in Pakistan to gain the evidence of the practicality of our approach. The result shows that the proposed plain language text scheme using English alphabets improved the reading comprehension for non native English speakers in Pakistan.
description: pages 315- 319, http://www.IJCSI.org