cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hypercomplex almost abelian solvmanifolds
Creators: name: Andrada, Adrián
name: Barberis, María Laura
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 53C26, 22E25, 22E40, 53C55

description: We give a characterization of almost abelian Lie groups carrying left invariant hypercomplex structures and we show that the corresponding Obata connection is always flat. We determine when such Lie groups admit HKT metrics and study the corresponding Bismut connection. We obtain the classification of hypercomplex almost abelian Lie groups in dimension 8 and determine which ones admit lattices. We show that the corresponding 8-dimensional solvmanifolds are nilmanifolds or admit a flat hyper-Kähler metric. Furthermore, we prove that any 8-dimensional compact flat hyper-Kähler manifold is a solvmanifold equipped with an invariant hyper-Kähler structure. We also construct almost abelian hypercomplex nilmanifolds and solvmanifolds in higher dimensions.
description: Minor edits
Quantum melting of charge ice and non-Fermi-liquid behavior: An exact solution for the extended Falicov-Kimball model in the ice-rule limit
Creators: name: Udagawa, Masafumi
name: Ishizuka, Hiroaki
name: Motome, Yukitoshi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: An exact solution is obtained for a model of itinerant electrons coupled to ice-rule variables on the tetrahedron Husimi cactus, an analogue of the Bethe lattice of corner-sharing tetrahedra. It reveals a quantum critical point with the emergence of non-Fermi-liquid behavior in melting of the "charge ice" insulator. The electronic structure is compared with the numerical results for the pyrochlore-lattice model to elucidate the physics of electron systems interacting with the tetrahedron ice rule.
description: 5 pages, 4 figures
Fluctuation-response relation of time-symmetric quantities around general nonequilibrium stationary state
Creators: name: Shiraishi, Naoto
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A connection between the response and fluctuation in general nonequilibrium stationary states is investigated. We focus on time-symmetric quantities and find that the fluctuation of a kind of empirical measure can be expressed with the response of the empirical measure, current, and the time-symmetric current. This relation is proven by using the fictitious stalling decomposition: We decompose a single observed transition (edge in the state space) between two microscopic states into two transitions such that one of the transitions stalls in this stationary state. Through this trick, relations for stalling stationary states apply to general nonequilibrium stationary states, which leads to the desired relation.
description: 13 pages, no figure
Improvement of characterization accuracy of the nonlinear photonic crystals using finite elements-iterative method
Creators: name: Guryev, I. V.
name: Shulika, O. V.
name: Mashoshina, I. A. Sukhoivanov O. V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate nonlinear one- and two-dimensional photonic crystals by applying a finite element-iterative method.Numerical results show the essential influence of nonlinear elements embedded into a quarter-wave stack and the sharp photonic crystal waveguide bend on the spectral characteristics of these structures. We compare our results with those obtained in [21] from the discrete equation method for the case of a sharp waveguide bend. The comparison shows that neglecting the nonuniform field distribution inside the embedded nonlinear elements leads to overestimation of the waveguide bend transmissivity.
description: 5 pages, 9 figures
Aberrant transforming growth factor beta1-angiotensin II crosstalk in chronic obstructive pulmonary disease parenchymal fibroblasts
Creators: name: Wee, Tracee
Publisher: name: University of British Columbia
Year: 2014

description: Rationale: The airflow limitation in Chronic Obstructive Pulmonary Disease (COPD) is caused by small airways obstruction and/or obliteration and emphysematous destruction of parenchymal tissue. Our group previously characterized a gene expression signature for emphysema that included members of the TGFβ1 and Angiotensin (ANG) II signaling family. Further, we have shown that isolated parenchymal lung fibroblasts from severe COPD patients are unable to contract collagen 1α1 efficiently, but this impairment is reversed with the addition of TGFβ1 or the tripeptide Gly-His-Lys-Copper (GHK-Cu). Thus, we hypothesize that dysregulated ANG II-TGFβ1 crosstalk within the lung fibroblasts of COPD patients disrupts normal wound repair processes leading to disease. Methods: Parenchymal fibroblasts from ex-smokers with normal lung function (n=9), moderate COPD (GOLD II, n=5) and very severe COPD (GOLD IV, n=5) were treated with TGFβ1 (10 ng/mL), ANG II (100 nM) or GHK-Cu (100 nM) to evaluate the relationship between TGFβ1 and ANG II signaling and the potential of GHK-Cu as a therapeutic. Gene expression analysis using NanoString was performed on lung tissues from healthy (n=3) and COPD GOLD IV (n=3) donors. Comparisons were made using student’s t-test, paired t-tests or ANOVA. Results: TGFβ1 gene expression was reduced in COPD tissues (P<0.05), and exogenous TGFβ1 downregulated angiotensin receptor type 1 (AT1R) expression in fibroblasts from healthy control (P<0.05) but not COPD. This discrepant response was not due to inactive TGFβ1 signaling or changes in AT1R mRNA expression, and GHK-Cu was unable to correct this signaling defect. Expression of AT1R was significantly lower in COPD GOLD IV tissues (P<0.0001), and exogenous ANG II increased TGFβ1 production of parenchymal fibroblasts derived from all donor groups albeit levels were lower from COPD derived fibroblasts. Collagen 1α1 mRNA was increased in COPD lung tissue (P<0.0001), and the production of collagen 1α1 in response to exogenous TGFβ1 was increased in COPD derived fibroblasts (P<0.05). Conclusion: TGFβ1-ANG II crosstalk is defective in COPD parenchymal fibroblasts which could contribute to the development of emphysema through loss of cell responsiveness to TGFβ1, an important mediator in tissue repair.
Physics implications of a combined analysis of COHERENT CsI and LAr data
Creators: name: De Romeri, V.
name: Miranda, O. G.
name: Papoulias, D. K.
name: Garcia, G. Sanchez
name: Tórtola, M.
name: Valle, J. W. F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The observation of coherent elastic neutrino nucleus scattering has opened the window to many physics opportunities. This process has been measured by the COHERENT Collaboration using two different targets, first CsI and then argon. Recently, the COHERENT Collaboration has updated the CsI data analysis with a higher statistics and an improved understanding of systematics. Here we perform a detailed statistical analysis of the full CsI data and combine it with the previous argon result. We discuss a vast array of implications, from tests of the Standard Model to new physics probes. In our analyses we take into account experimental uncertainties associated to the efficiency as well as the timing distribution of neutrino fluxes, making our results rather robust. In particular, we update previous measurements of the weak mixing angle and the neutron root mean square charge radius for CsI and argon. We also update the constraints on new physics scenarios including neutrino nonstandard interactions and the most general case of neutrino generalized interactions, as well as the possibility of light mediators. Finally, constraints on neutrino electromagnetic properties are also examined, including the conversion to sterile neutrino states. In many cases, the inclusion of the recent CsI data leads to a dramatic improvement of bounds.
description: 43 pages, 18 Figures
Cosmological Practice and Social Complexity in North and Central Mexico
Creators: name: Nelson, Ben
name: Peeples, Matthew
Publisher: name: Cosmology Conference
Year: 2007
Subjects: subject: North and central Mexico
valueUri: https://core.tdar.org/browse/geographic-keyword/83568/north-and-central-mexico
subject: Mexico
valueUri: https://core.tdar.org/browse/geographic-keyword/134/mexico
subject: Woodland
valueUri: https://core.tdar.org/browse/culture-keyword/13/woodland
subject: Maya
valueUri: https://core.tdar.org/browse/culture-keyword/65/maya
subject: Mississippian
valueUri: https://core.tdar.org/browse/culture-keyword/18/mississippian
subject: Mogollon
valueUri: https://core.tdar.org/browse/culture-keyword/34/mogollon
subject: Ancestral Puebloan
valueUri: https://core.tdar.org/browse/culture-keyword/19/ancestral-puebloan
subject: Anasazi
valueUri: https://core.tdar.org/browse/culture-keyword/84/anasazi
subject: Hohokam
valueUri: https://core.tdar.org/browse/culture-keyword/21/hohokam
subject: Aztec
valueUri: https://core.tdar.org/browse/culture-keyword/85/aztec
subject: Archaic
valueUri: https://core.tdar.org/browse/culture-keyword/8/archaic
subject: Hopewell
valueUri: https://core.tdar.org/browse/culture-keyword/12/hopewell
subject: Archaeoastronomy
valueUri: https://core.tdar.org/browse/other-keyword/134110/archaeoastronomy
subject: Cosmology
valueUri: https://core.tdar.org/browse/other-keyword/134106/cosmology
subject: Methodology, Theory, or Synthesis
valueUri: https://core.tdar.org/browse/investigation-type/6/methodology-theory-or-synthesis

description: To our minds the most interesting issue that emerges from juxtaposing the cosmologies of northern and central Mexico is the relationship between cosmology and social complexity. The regions were historically related and shared both broad structures many details of cosmology. Yet Central Mexican societies had undergone an urban transformation that the societies of northern and western Mexico had not experienced. In our view there are scale-dependent regularities in the material expression of cosmology and the institutions through which it was reproduced and conveyed. To characterize these regularities we will make comparisons across time and space, moving in relation to Tenochtitlan, the Aztec metropolis whose development was interrupted in mid-trajectory by the arrival of the Spaniards in 1519 CE. We are using northern and central Mexico in a very broad sense, including what archaeologists call West Mexico, the Northern Frontier, and the Central and Southern Highlands . We are not including what some Mesoamericanists call the Far North (i.e., Chihuahua and Sonora). In world-systems terms (1) central Mexico contained one of the two urbanized cores of Mesoamerica at the time of the Spanish conquest; the other was in the Maya Highlands of southern Mexico and Guatemala. Northern Mexico as we define it here was more related to central Mexico than to the Maya, and perhaps had constituted a secondary core earlier in time (2). Although central Mexico is better known, northern Mexico also contributed to the development of the Mesoamerican tradition (3, 4), including its cosmologies.
Data-driven Feature Tracking for Event Cameras
Creators: name: Messikommer, Nico
name: Fang, Carter
name: Gehrig, Mathias
name: Scaramuzza, Davide
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Because of their high temporal resolution, increased resilience to motion blur, and very sparse output, event cameras have been shown to be ideal for low-latency and low-bandwidth feature tracking, even in challenging scenarios. Existing feature tracking methods for event cameras are either handcrafted or derived from first principles but require extensive parameter tuning, are sensitive to noise, and do not generalize to different scenarios due to unmodeled effects. To tackle these deficiencies, we introduce the first data-driven feature tracker for event cameras, which leverages low-latency events to track features detected in a grayscale frame. We achieve robust performance via a novel frame attention module, which shares information across feature tracks. By directly transferring zero-shot from synthetic to real data, our data-driven tracker outperforms existing approaches in relative feature age by up to 120% while also achieving the lowest latency. This performance gap is further increased to 130% by adapting our tracker to real data with a novel self-supervision strategy.
Magnetization Reversal by Electric-Field Decoupling of Magnetic and Ferroelectric Domains Walls in Multiferroic-Based Heterostructures
Creators: name: Skumryev, V.
name: Laukhin, V.
name: Fina, I.
name: Martí, X.
name: Sánchez, F.
name: Gospodinov, M.
name: Fontcuberta, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate that the magnetization of a ferromagnet in contact with an antiferromagnetic multiferroic (LuMnO3) can be speedily reversed by electric field pulsing, and the sign of the magnetic exchange bias can switch and recover isothermally. As LuMnO3 is not ferroelastic, our data conclusively show that this switching is not mediated by strain effects but is a unique electric-field driven decoupling of the ferroelectric and ferromagnetic domains walls. Their distinct dynamics are essential for the observed magnetic switching.
British-Persian relations in the Sherley dossier (1598-1626)
Creators: name: Jahanmardi, Maryam
Publisher: name: University of British Columbia
Year: 2014

description: As part of a more general interest in “Orientalism” and the history of East-West relations, a good deal of scholarly attention has lately been devoted to cultural, commercial and political interactions between the English and the Persians in the period of Britain’s main colonial expansion, from the eighteenth century onwards. This study joins a growing body of scholarship that concentrates on an earlier period and that is developing new theoretical paradigms for understanding East-West relations during the sixteenth and seventeenth centuries in terms of mutuality, dialogue and reciprocity (e.g. Matar, Maclean, Vitkus, Loomba, Burton, Barbour, and Dimmock). As emphasized by these critics, the power relations assumed by postcolonial theory are unsustainable in an early modern context, because it was only during the eighteenth century that Muslim empires such as those of the Ottomans and Persians became the subjects of colonial construction. In fact, in contrast to the imperialist views of the eighteenth century, the early modern English showed a great interest in cultural and commercial relations with the Islamic “Other”. In this thesis, I examine early modern England’s relationship with the Muslim East in general, and with Persians in particular, emphasizing the fluidity of intercultural relations. I also suggest that “Otherness” in the early modern period itself had a fluid and ambivalent nature. My study focuses on a dossier of texts relating to the travels of two Englishmen (the brothers Anthony and Robert Sherley) to Persia, which played a significant role in the formation of early modern English perceptions of Persia and of Persians. The main scene of the study lies between the first trip made by the Sherley brothers to Persia in 1598 and the publication in 1625 of Purchas His Pilgrims. These accounts are of two distinct types: narratives written by traveller-writers, and those composed by hired writers at home. Juxtaposing these two groups of accounts, I demonstrate the versatility of the representation of the Persian “Other” and point out how the writers’ predispositions and the changing politico-historical milieu influenced the construction of images of the Persians.
HAAC: A Hardware-Software Co-Design to Accelerate Garbled Circuits
Creators: name: Mo, Jianqiao
name: Gopinath, Jayanth
name: Reagen, Brandon
Publisher: name: arXiv
Year: 2022
Subjects: subject: Hardware Architecture (cs.AR)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Privacy and security have rapidly emerged as priorities in system design. One powerful solution for providing both is privacy-preserving computation, where functions are computed directly on encrypted data and control can be provided over how data is used. Garbled circuits (GCs) are a PPC technology that provide both confidential computing and control over how data is used. The challenge is that they incur significant performance overheads compared to plaintext. This paper proposes a novel garbled circuits accelerator and compiler, named HAAC, to mitigate performance overheads and make privacy-preserving computation more practical. HAAC is a hardware-software co-design. GCs are exemplars of co-design as programs are completely known at compile time, i.e., all dependence, memory accesses, and control flow are fixed. The design philosophy of HAAC is to keep hardware simple and efficient, maximizing area devoted to our proposed custom execution units and other circuits essential for high performance (e.g., on-chip storage). The compiler can leverage its program understanding to realize hardware's performance potential by generating effective instruction schedules, data layouts, and orchestrating off-chip events. In taking this approach we can achieve ASIC performance/efficiency without sacrificing generality. Insights of our approach include how co-design enables expressing arbitrary GCs programs as streams, which simplifies hardware and enables complete memory-compute decoupling, and the development of a scratchpad that captures data reuse by tracking program execution, eliminating the need for costly hardware managed caches and tagging logic. We evaluate HAAC with VIP-Bench and achieve an average speedup of 589$\times$ with DDR4 (2,627$\times$ with HBM2) in 4.3mm$^2$ of area.
description: Accepted to the 50th Annual International Symposium on Computer Architecture (ISCA)
Bulk spectral function sum rule in QCD-like theories with a holographic dual
Creators: name: Hohler, Paul M.
name: Stephanov, Mikhail A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We derive the sum rule for the spectral function of the stress-energy tensor in the bulk (uniform dilatation) channel in a general class of strongly coupled field theories. This class includes theories holographically dual to a theory of gravity coupled to a single scalar field, representing the operator of the scale anomaly. In the limit when the operator becomes marginal, the sum rule coincides with that in QCD. Using the holographic model, we verify explicitly the cancellation between large and small frequency contributions to the spectral integral required to satisfy the sum rule in such QCD-like theories.
description: 16 pages, 2 figures
Assessment of sorghum production constraints and farmer preferences for sorghum variety in Uganda: implications for nutritional quality breeding
Creators: name: Andiku, Charles
name: Shimelis, Hussein
name: Laing, Mark
name: Shayanowako, Admire Isaac Tichafa
name: Ugen, Michael Adrogu
name: Manyasa, Eric
name: Ojiewo, Chris
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: Plant Biology

description: Sorghum [Sorghum bicolor (L.) Moench] is the main food staple grain widely cultivated in sub-Sharan Africa including Uganda. There is a lack of current information on sorghum production constraints and varietal trait preferences in the major sorghum production areas in Uganda. Therefore, the objective of this study was to assess the sorghum production constraints and farmer preferences for sorghum variety in Uganda. A participatory rural appraisal study was undertaken in four selected sorghum production districts in Uganda (Kumi, Bukedea, Oyam and Gulu). Data were collected through surveys using semi-structured questionnaires and focus group discussion involving 128 and 55 participants, respectively. Data were subjected to parametric and non-parametric statistical analyses to draw inferences. A lack of improved sorghum varieties was the major sorghum production constraint reported by 82.8% of participants. Farmer preferred ideal sorghum varieties were short to medium plant height with high grain yield. The quality attributes mostly preferred by farmers were baking quality, nutrition, and seed colour. Farmers in the study areas mainly grew unimproved sorghum varieties with low food values. Overall, the study provides the current evidence on sorghum production constraints and farmer-preferred attributes that will guide sorghum nutritional quality breeding with farmer preferred traits.
Laser Pulse Duration Optimization With Numerical Methods
Creators: name: Capuano, Francesco
name: Peceli, Davorin
name: Tiboni, Gabriele
name: Špaček, Alexandr
name: Rus, Bedřic
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this study we explore the optimization of laser pulse duration to obtain the shortest possible pulse. We do this by employing a feedback loop between a pulse shaper and pulse duration measurements. We apply to this problem several iterative algorithms including gradient descent, Bayesian Optimization and genetic algorithms, using a simulation of the actual laser represented via a semi-physical model of the laser based on the process of linear and non-linear phase accumulation.
description: 4 pages 3 figures - submitted to 2022 PCAPAC Conference
Treatment the Effects of Studio Wall Resonance and Coincidence Phenomena for Recording Noisy Speech Via FPGA Digital Filter
Creators: name: Abdalla, Mahmoud I. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Sound (cs.SD)
subject: FOS: Computer and information sciences

description: This work introduces an economic solution for the problems of sound insulation of recording studios. Sound insulation at wall resonance frequency is weak. Instead of acoustical treatment, a digital filter is used to eliminate the effects of wall resonance and coincidence phenomena on recording of speech. Sound insulation of studio is measured to calculate the wall resonance frequency and the coincidence frequency. Pole /zero placement technique is used to calculate the IIR filter coefficients. The digital filter is designed, simulated and implemented. The proposed system is used to treat these problems and it is shown to be effective in recording the noisy speech. In this work digital signal processing is used instead of the acoustic treatment to eliminate the effect of noise at the studio wall resonance. This technique is cheap and effective in canceling the noise at the desired frequencies. Field Programmable Gate Array (FPGA) is used for hardware implementation of the proposed filter structure which provides fast and cheap solution for processing real time audio signals. The implementation is carried out using Spartan chip from Xinlinx achieving higher performance than commercially available software solutions.
description: Submitted to Journal of Telecommunications, see http://sites.google.com/site/journaloftelecommunications/volume-2-issue-2-may-2010
CSS1603+19: a low-mass polar near the cataclysmic variable period minimum
Creators: name: Liu, Yiqi
name: Hwang, Hsiang-Chih
name: Zakamska, Nadia L.
name: Thorstensen, John R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: CSS1603+19 is a cataclysmic variable (CV) with an orbital period of 81.96 min, near the minimal period of cataclysmic variables. It is unusual in having a strong mid-infrared excess inconsistent with thermal emission from a brown dwarf companion. Here we present time-resolved multi-wavelength observations of this system. WISE photometry indicates that the mid-infrared excess displays a one-magnitude eclipsing-like variability during the orbit. We obtained near-infrared and optical spectroscopy using Gemini, MDM and APO telescopes. Near-infrared spectra show possible cyclotron features indicating that the white dwarf has a magnetic field of about 5MG. Optical and near-infrared spectra display double-peaked emission lines, with both components showing strong radial velocity variations during the orbital period and with the broad component leading the narrow component stably by about 0.2 of the orbital phase. We construct a physical model informed by existing observations of the system and determine that one component likely originates from the accretion column onto the magnetized white dwarf in synchronous rotation with the orbital motion and the other from the Roche overflow point. This allows us to constrain the masses of the binary components to be $M_1>0.24 M_{\odot}$ for the white dwarf accretor and $M_2=0.0644\pm0.0074 M_\odot$ for the donor. We classify the system as an AM Herculis star, or a polar. It has likely completed its stint on the period gap, but has not yet gone through the period bounce.
Uniform Eberlein compactifications of metrizable spaces
Creators: name: Banakh, Taras
name: Leiderman, Arkady
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Topology (math.GN)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 54D35, 54G12, 54D30, 54D20

description: We prove that each metrizable space (of cardinality less or equal to continuum) has a (first countable) uniform Eberlein compactification and each scattered metrizable space has a scattered hereditarily paracompact compactification. Each compact scattered hereditarily paracompact space is uniform Eberlein and belongs to the smallest class of compact spaces, that contain the empty set, the singleton, and is closed under producing the Aleksandrov compactification of the topological sum of a family of compacta from that class.
description: 6 pages
An extensive optical study of V2491 Cyg (Nova Cyg 2008 N.2), from maximum brightness to return to quiescence
Creators: name: Munari, U.
name: Siviero, A.
name: Dallaporta, S.
name: Cherini, G.
name: Valisa, P.
name: Tomasella, L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The photometric and spectroscopic evolution of the He/N and very fast Nova Cyg 2008 N2 (V2491 Cyg) is studied in detail. A primary maximum was reached at V=7.45 +/-0.05 on April 11.37 (+/-0.1) 2008 UT, followed by a smooth decline characterized by t2(V)=4.8 days, and then a second maximum was attained at V=9.49 +/-0.03, 14.5 days after the primary one. This is the only third nova to have displayed a secondary maximum, after V2362 Cyg and V1493 Aql. The development and energetics of the secondary maximum is studied in detail. The smooth decline that followed was accurately monitored until day +144 when the nova was 8.6 mag fainter than maximum brightness, well into its nebular phase, with its line and continuum emissivity declining as t-3. The reddening affecting the nova was E(B-V)=0.23 +/-0.01, and the distance of 14 kpc places the nova at a height above the galactic plane of 1.1 kpc, larger than typical for He/N novae. The expansion velocity of the bulk of ejecta was 2000 km/sec, with complex emission profiles and weak P-Cyg absorptions during the optically thick phase, and saddle-like profiles during the nebular phase. Photo-ionization analysis of the emission line spectrum indicates that the mass ejected by the outburst was 5.3 10(-6) Msun and the mass fractions to be X=0.573, Y=0.287, Z=0.140, with those of individual elements being N=0.074, O=0.049, Ne=0.015. The metallicity of the accreted material was [Fe/H]=-0.25, in line with ambient value at the nova galacto-centric distance. Additional spectroscopic and photometric observations at days +477 and +831 show the nova returned to the brightness level of the progenitor and to have resumed the accretion onto the white dwarf.
description: in press in New Astronomy
Substellar Objects in Nearby Young Clusters (SONYC) III: Chamaeleon-I
Creators: name: Muzic, Koraljka
name: Scholz, Alexander
name: Geers, Vincent
name: Fissel, Laura
name: Jayawardhana, Ray
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: SONYC - Substellar Objects in Nearby Young Clusters - is a survey program to investigate the frequency and properties of substellar objects with masses down to a few times that of Jupiter in nearby star-forming regions. In this third paper, we present our recent results in the Chamaeleon-I star forming region. We have carried out deep optical and near-infrared imaging in four bands (I, z, J, Ks) using VIMOS on the ESO Very Large Telescope and SOFI on the New Technology Telescope, and combined our data with mid-infrared data from the Spitzer Space Telescope. The survey covers ~0.25 sqdeg on the sky, and reaches completeness limits of 23.0 in the I-band, 18.3 in the J-band, and 16.7 in Ks-band. Follow-up spectroscopy of the candidates selected from the optical photometry (I
description: Accepted by Astrophysical Journal
The 3D structure of anisotropic flow in small collision systems at the Relativistic Heavy Ion Collider
Creators: name: Zhao, Wenbin
name: Ryu, Sangwook
name: Shen, Chun
name: Schenke, Björn
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present (3+1)D dynamical simulations of asymmetric nuclear collisions at the Relativistic Heavy Ion Collider (RHIC). Employing a dynamical initial state model coupled to (3+1)D viscous relativistic hydrodynamics, we explore the rapidity dependence of anisotropic flow in the RHIC small system scan at 200 GeV center of mass energy. We calibrate parameters to describe central $^3$He+Au collisions and make extrapolations to d+Au and p+Au collisions. Our calculations demonstrate that approximately 50% of the $v_3(p_T)$ difference between the measurements by the STAR and PHENIX Collaborations can be explained by the use of reference flow vectors from different rapidity regions. This emphasizes the importance of longitudinal flow decorrelation for anisotropic flow measurements in asymmetric nuclear collisions, and the need for (3+1)D simulations. We also present results for the beam energy dependence of particle spectra and anisotropic flow in d+Au collisions.
description: Include the STAR new data, and include the statistical error and systematic error
Indentation-induced martensitic transformation in SMAs: insights from phase-field simulations
Creators: name: Rezaee-Hajidehi, Mohsen
name: Tůma, Karel
name: Stupkiewicz, Stanisław
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Direct experimental characterization of indentation-induced martensitic microstructures in pseudoelastic shape memory alloys (SMAs) is not possible, and thus there is a lack of evidence and understanding regarding the microstructure pattern and related features. To fill this gap, in this work we employ the phase-field method to provide a detailed and systematic analysis of martensitic phase transformation during nanoindentation. A recently-developed finite-element-based computational model is used for this purpose, and a campaign of large-scale 3D simulations is carried out. First, the orientation-dependent indentation response in CuAlNi (a widely studied SMA) is examined. A detailed investigation of the predicted microstructures reveals several interesting features, some of them are consistent with theoretical predictions and some can be (to some extent) justified by experiments other than micro/nanoindentation. The results also highlight the key role of finite-deformation effects and elastic anisotropy of the phases on the model predictions. Next, a detailed study of indentation-induced martensitic transformation in NiTiPd (a potential low-hysteresis SMA) with varying Pd content is carried out. In terms of hysteresis, the results demonstrate the prevailing effect of the transformation volume change over phase compatibility in the conditions imposed by nanoindentation and emphasize on the dominant role of the interfacial energy at small scales. Results of such scope have not been reported so far.
Disentangling longitudinal and transverse modes of the $ϕ$ meson through dilepton and kaon decays
Creators: name: Park, In Woo
name: Sako, Hiroyuki
name: Aoki, Kazuya
name: Gubler, Philipp
name: Lee, Su Houng
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Angular distributions of $ϕ$ meson decay amplitudes of $e^+e^-$ and $K^+K^-$ channels are computed using both specific interaction Lagrangians and simple arguments relying on angular momentum conservation. Based on the obtained results, we assess methods to experimentally disentangle the longitudinal and transverse polarization modes of the $ϕ$ meson and discuss advantages and disadvantages of employing either the leptonic or hadronic decay modes for this task.
Etrocorema nigrogeniculatum
Creators: name: Stark, Bill P.
name: Sivec, Ignac
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Etrocorema
Etrocorema nigrogeniculatum

description: Etrocorema nigrogeniculatum (Enderlein) Ochthopetina nigrogeniculata Enderlein, 1909:400. Lectotype ♂, Malaysia Etrocorema ahenobarba Klapálek, 1909:222. Holotype ♂, Camp Jor, Malaysia. Syn. Klapálek, 1923 Euryplax ochrostoma Klapálek, 1909:225. Holotype ♀, Malaysia. Syn. Zwick, 1982b Neoperla modiglianina Navas, 1932:952. Holotype ♀, SiRambé, Sumatra. Syn. Zwick, 1982a Neoperla nangina Navas, 1929:80. Holotype ♂, Nanga Obat, Borneo. Syn. Zwick, 1986a Material examined. Indonesia: East Kalimantan, Kayan‐ Mentarang Nature Reserve, Lalut Birai, 2° 52’ N, 115° 49’ E, 378 m, 28 March‐16 April 1994, IIS 940507, B. Hubley, D.C. Darling, 1 ♂, 4 ♀ pinned (MZB, ROM). Remarks. Zwick (1982a, b) reported this species from Sumatra and Borneo (Sabah) respectively, Zwick & Sivec (1985) gave additional Sumatran records, and Zwick (1986a) placed N. nangina, a species named from Borneo, as a synonym of this species. The Sabah female studied by Zwick (1982b) is reported to be “…dark and very large, the wing is 26 mm long”, whereas the females in this sample, also quite dark, have 16‐17 mm forewing lengths. Unfortunately no eggs could be extracted from these pinned specimens, but the internal and external male genitalia are consistent with specimens from the Asian mainland except for the atypical absence of anterior sclerite development along the median line of tergum 9.
description: Published as part of Stark, Bill P. & Sivec, Ignac, 2007, Studies Of Indonesian Perlidae (Plecoptera), With Descriptions Of Three New Species, pp. 53-64 in Illiesia 3 (7) on pages 53-54, DOI: 10.5281/zenodo.4758713
description: {"references": ["Enderlein, G. 1909. Plecopterologische Studien. II. Stettiner Entomologische Zeitung, Stettin, 70: 324 - 352.", "Klapalek, F. 1909. Vorlaufiger Bericht uber exotische Plecopteren. Wiener Entomologische Zeitung, 28: 215 - 232.", "Klapalek, F. 1923. Plecopteres II. Fam. Perlidae.", "Zwick, P. 1982 b. Notes on Plecoptera (7). Neoeuryplax: a junior synonym of Etrocorema. Aquatic Insects, 4: 236.", "Navas, R. P. L. 1932. Insecta Orientalia. Memorie della Pontificia Accademia Romana dei Nuovi Lincei, 16: 951 - 956.", "Zwick, P. 1982 a. Notes on Plecoptera (6). Etrocorema nigrogeniculatum (Enderlein). Aquatic Insects, 4: 104.", "Navas, R. P. L. 1929. Plecopteros. - In: Insectos del Museo de Hamburgo: Boletin de la Sociedad Entomologica de Espana, 12: 75 - 83.", "Zwick, P. 1986 a. The Bornean species of the stonefly genus Neoperla (Plecoptera: Perlidae). Aquatic Insects, 8: 1 - 53.", "Zwick, P. & I. Sivec. 1985. Supplements to the Perlidae (Plecoptera) of Sumatra. Spixiana, 8: 123 - 133."]}
ENVIRONMENTAL FACTORS ASSOCIATED WITH DRAGONFLY ASSEMBLAGES AT EL YUNQUE NATIONAL FOREST
Creators: name: Rios, Ashley C Mariani
name: Ramírez, Alonso
Publisher: name: Zenodo
Year: 2019
Subjects: Dragonflies, Puerto Rico

description: The environment plays a major role in determining biotic communities found in ecosystems. Abiotic factors help shape species dynamics and can affect species survival if drastically changed. Temporal changes in environmental factors result in life history adaptations for species such as aquatic insects. Odonata are model organisms to study these relationships because they are in both terrestrial and aquatic habitats. The objective of this investigation is to evaluate temporal changes of dragonfly assemblages at El Yunque rainforest and associate them with environmental variables. For larvae collection, we established a 100m transect in streams Prieta and Gatos. Each month, five 5m segments are randomly chosen for sampling using aquarium fish nets in pools and riffles for 15 min per segment. Larvae are sorted from benthic material and preserved in ethanol. We also measured temperature and canopy cover at each segment. Results indicate that larvae were more abundant in Prieta than in Gatos stream, even when both streams are of similar size. Analysis of size distribution resulted in a similar pattern for both streams, with small larvae being more abundant than medium and large ones. We also did not find evidence of cohort development, as small and large larvae were present in the same months. Environmental variables evidenced post-hurricane conditions for both streams, with open canopy and warm temperatures.  Although this is an ongoing project, we found evidence for the occurrence of multiple dragonfly generations per year in these streams.
Additional file 1 of Communicable disease mortality trends and characteristics of infants in rural China, 1996–2015
Creators: name: Wang, Ke
name: Xiang, Liangcheng
name: Kang, Leni
name: Miao, Lei
name: Li, Qi
name: Li, Xiaohong
name: Zhu, Jun
name: Wang, Yanping
name: Huang, Yan
name: He, Chunhua
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Additional file 1:Figure S1. (a) Per capita net income of rural residents (RMB/yr) and ARI-specific infant mortality rate, (b) Proportion of children under 3 covered by systematic health management and ARI-specific infant mortality rate.
Additional file 2 of A model to predict unstable carotid plaques in population with high risk of stroke
Creators: name: Yin, Junxiong
name: Yu, Chuanyong
name: Liu, Hongxing
name: Du, Mingyang
name: Sun, Feng
name: Yu, Cheng
name: Wei, Lixia
name: Wang, Chongjun
name: Wang, Xiaoshan
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Hematology

description: Additional file 2. The results of gender age matched control group. This is the result of the study on the gender age matched control group (1:1), which can completely correct the influencing factors of gender and age. The result show that whether or not adjusted for age and gender, married, a higher level of LDL-C and a lower level of HLD-C were both the independent risk factors of carotid unstable plaque.
Men's depression, help-seeking and heterosexual relationships : a secondary gender analysis
Creators: name: Albus, Teri Lynn
Publisher: name: University of British Columbia
Year: 2014

description: Men’s depression is a complex health care issue in Canadian society. Depression has negative impacts on many aspects of men’s lives including work performance, school achievement and relationship success. Adherence to hegemonic masculine ideals including strength and self-reliance lead some men to keep depression hidden amid broader social stigma whereby mental health challenges are often equated with weakness. Heterosexual men who experience depression rely heavily on relationship support from their women partners and often refuse to seek help from health care providers or engage with public health services. In order for men’s depression services to be effective, they must celebrate hegemonic masculine values including leadership and strength while acknowledging the key role women partners play in encouraging depressed men to seek help. Results include how depressed men go to great lengths to keep it hidden, attempt self-management, say that they want help but seldom make efforts to seek it, rely heavily on their women partners for support, make efforts to shield women partners from the most negative aspects of their condition and acknowledge that their women partners are critical to their recovery.
Ammonia observations of bright-rimmed clouds: establishing a sample of triggered protostars
Creators: name: Morgan, L. K.
name: Figura, C. C.
name: Urquhart, J. S.
name: Thompson, M. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We observed 42 molecular condensations within previously identified bright-rimmed clouds in the ammonia rotational inversion lines NH3 (1,1), (2,2), (3,3) and (4,4) using the Green Bank Telescope in Green Bank, West Virginia. Using the relative peaks of the ammonia lines and their hyperfine satellites we have determined important parameters of these clouds, including rotational temperatures and column densities. These observations confirm the presence of dense gas towards IRAS point sources detected at submillimetre wavelengths. Derived physical properties allow us to refine the sample of bright-rimmed clouds into those likely to be sites of star formation, triggered via the process of radiatively-driven implosion. An investigation of the physical properties of our sources show that triggered sources are host to greater turbulent velocity dispersions, likely indicative of shock motions within the cloud material. These may be attributed to the passage of triggered shocks or simply the association of outflow activity with the sources. In all, we have refined the Sugitani et al. (1991) catalogue to 15 clouds which are clearly star-forming and influenced by external photoionisation-induced shocks. These sources may be said, with high confidence, to represent the best examples of triggering within bright-rimmed clouds.
Neoperla affinis : Zwick & Sivec 1985
Creators: name: Stark, Bill P.
name: Sivec, Ignac
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Neoperla
Neoperla affinis

description: Neoperla affinis Zwick (Figs. 1‐2) Neoperla affinis Zwick, 1983:193. Holotype ♂, Tanangtalu, Sumatra Neoperla affinis: Zwick & Sivec, 1985:129. New records Material examined. Indonesia: Sumatra, Aceh, Mt. Leuser National Park, Ketambe Research Station, Alas River, 3° 41’ N, 97° 39’ E, 350 m, 5 September 1989, ROM 893053, W.K. Gall, 1 ♂, 7 ♀ (MZB, ROM). Remarks. This species is known from about a dozen sites on Sumatra but had not previously been reported from this locality. Present collections are from most months between March and December (Zwick 1983; Zwick & Sivec 1985). Zwick’s (1983) description of the egg from light microscopy is supported by our figures from scanning electron microscopy (Figs.1‐2). The chorion is covered throughout, except for a bare area surrounding the collar, with closely grouped, fine shallow pits, and the sessile collar consists of a shallow depression from which a long anchor pedicel (broken in our specimen) extends.
description: Published as part of Stark, Bill P. & Sivec, Ignac, 2007, Studies Of Indonesian Perlidae (Plecoptera), With Descriptions Of Three New Species, pp. 53-64 in Illiesia 3 (7) on page 54, DOI: 10.5281/zenodo.4758713
description: {"references": ["Zwick, P. 1983. The Neoperla of Sumatra and Java (Indonesia) (Plecoptera: Perlidae). Spixiana, 6: 167 - 204.", "Zwick, P. & I. Sivec. 1985. Supplements to the Perlidae (Plecoptera) of Sumatra. Spixiana, 8: 123 - 133."]}
Binary formation through gas-assisted capture and the implications for stellar, planetary and compact-object evolution
Creators: name: Rozner, Mor
name: Generozov, Aleksey
name: Perets, Hagai B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Binary systems are ubiquitous and their formation requires two-body interaction and dissipation. In gaseous media, interactions between two initially unbound objects could result in gas-assisted binary formation, induced by a loss of kinetic energy to the ambient gas medium. Here we derive analytically the criteria for gas-assisted binary capture through gas dynamical friction dissipation. We validate them with few-body simulations and explore this process in different gas-rich environments: gas-embedded star-forming regions (SFR), gas-enriched globular clusters, AGN disks and protoplanetary-disks. We find that gas-assisted binary capture is highly efficient in SFRs, potentially providing a main channel for the formation of binaries. It could also operate under certain conditions in gas-enriched globular clusters. Thin AGN disks could also provide a fertile ground for gas-assisted binary capture and in particular the formation of black-hole/other compact object binaries, the production of gravitational-wave (GW) and other high-energy transients. Large-scale gaseous disks might be too thick to enable gas-assisted binary capture and previous estimates of the production of GW-sources could be overestimated, and sensitive to specific conditions and the structure of the disks. In protoplanetary-disks, while gas-assisted binary capture can produce binary KBOs, dynamical friction by small planetsimals is likely to be more efficient. Overall, we show that gas-assisted binary formation is robust and can contribute significantly to the binary formation rate in many environments. In fact, the gas-assisted binary capture rates are sufficiently high such that they will lead to multicaptures, and the formation of higher multiplicity systems.
description: Accepted to MNRAS