cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Unified Empirical Equation for Determining the Mechanical Properties of Porous NiTi Alloy: From Nanoporosity to Microporosity
Creators: name: Galimzyanov, B. N.
name: Nikiforov, G. A.
name: Anikeev, S. G.
name: Artyukhova, N. V.
name: Mokshin, A. V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The mechanical characteristics of a monolithic (non-porous) crystalline or amorphous material are described by a well-defined set of quantities. It is possible to change the mechanical properties by introducing porosity into this material: as a rule, the strength values decrease with the introduction of porosity. Thus, porosity can be considered as an additional degree of freedom that can be used to influence the hardness, strength and plasticity of the material. In the present work, using porous crystalline NiTi as an example, it is shown that the mechanical characteristics such as the Young's modulus, the yield strength, the ultimate tensile strength, etc. demonstrate a pronounced dependence on the average linear size $\bar{l}$ of the pores. For the first time, an empirical equation is proposed that correctly reproduces the dependence of the mechanical characteristics on the porosity $ϕ$ and on the average linear size $\bar{l}$ of the pores in a wide range of sizes: from nano-sized pores to pores of a few hundred microns in size. This equation correctly takes into account the limit case corresponding to the monolithic material. The obtained results can be used directly to solve applied problems associated with the design of materials with the necessary combination of physical and mechanical characteristics, in particular, porous metallic biomaterials.
description: 26 pages, 6 figures, 2 tables
Strong terahertz radiation from relativistic laser interaction with solid density plasmas
Creators: name: Li, Y. T.
name: Li, C.
name: Zhou, M. L.
name: Wang, W. M.
name: Du, F.
name: Ding, W. J.
name: Lin, X. X.
name: Liu, F.
name: Sheng, Z. M.
name: Chen, L. M.
name: Ma, J. L.
name: Lu, X.
name: Dong, Q. L.
name: Wang, Z. H.
name: Wei, Z. Y.
name: Zhang, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We report a plasma-based strong THz source generated by using intense femtosecond laser pulses to irradiate solid targets at relativistic intensity >10^18W/cm2. Energies up to 50 microJ/sr per THz pulse is observed in the specular direction when the laser pulses are incident onto a copper foil at 67.5 degree. The source appears to be linearly polarized. The temporal, spectral properties of the THz are measured by a single shot, electro-optic sampling method with a chirped laser pulse. The THz radiation is attributed to the self-organized transient fast electron currents formed along the target surface. Such a strong THz source allows potential applications in THz nonlinear physics.
Liquid-liquid phase separation in atmospherically relevant particles
Creators: name: You, Yuan
Publisher: name: University of British Columbia
Year: 2014

description: Aerosol particles containing both organic material and inorganic salts are abundant in the atmosphere. These particles may undergo phase transitions when the relative humidity fluctuates between high and low values in the atmosphere. This dissertation focuses on liquid-liquid phase separation in atmospherically relevant mixed organic-inorganic salt particles. Liquid-liquid phase separation has potentially important implications in chemical and physical processes in the atmosphere. A humidity and temperature controlled flow cell coupled to either an optical, fluorescence, or Raman microscope was used to study the occurrence of liquid-liquid phase separation and the phase separation relative humidity (SRH) of particles containing atmospherically relevant organic species mixed with inorganic salts. Organic species in the particles studied include single organic species, such as carboxylic acids, alcohols, and oxidized aromatic compounds, as well as complex laboratory-produced secondary organic material. Material directly collected from the atmospheric environment was also studied. In this dissertation, the effects of oxygen-to-carbon elemental ratio (O:C) of the organic species, salt types, molecular weight of the organic species, and temperature on the occurrence of liquid-liquid phase separation and SRH were studies. The oxygenic-to-carbon elemental ratio was a useful parameter for predicting liquid-liquid phase separation and SRH. Liquid-liquid phase separation did not depend strongly on the molecular weight of the organic species or temperature. The correlation between SRH and O:C in particles containing organic species mixed with different salts were qualitatively similar. Results of this research will help improve the understanding of liquid-liquid phase separation in the atmospheric aerosols, and may, in turn, improve simulations and predictions of atmospheric chemistry and climate.
Non-Kosterlitz-Thouless transitions for the $q$-state clock models
Creators: name: Baek, Seung Ki
name: Minnhagen, Petter
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The $q$-state clock model with the cosine potential has a single phase transition for $q\leq4$ and two transitions for $q\geq5$. It is shown by Monte Carlo simulations that the helicity modulus for the five-state clock model ($q=5$) does not vanish at the high-temperature transition. This is in contrast to the clock models with $q\geq6$ for which the helicity modulus vanishes. This means that the transition for the five-state clock model differs from the Kosterlitz-Thouless (KT) transition. It is also shown that this change in the transition is caused by an interplay between the number of angular directions and the interaction potential: by slightly modifying the interaction potential, the KT transition for $q=6$ turns into the same non-KT transition. Likewise, the KT transition is recovered for $q=5$ when the Villain potential is used. Comparisons with other clock-model results are made and discussed.
description: 11 pages, 17 figures
Additional file 3 of Identification, characterization and expression profiles of E2 and E3 gene superfamilies during the development of tetrasporophytes in Gracilariopsis lemaneiformis (Rhodophyta)
Creators: name: Wu, Qiong
name: Yin, Jingru
name: Jiang, Min
name: Zhang, Jingyu
name: Sui, Zhenghong
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Plant Biology

description: Additional file 3: Supplementary Fig. S3. Conserved domains of E2 ubiquitin conjugating enzymes in Gp. lemaneiformis. A The phylogenetic tree. B Protein conserved domains.
Nemoura tau Zwick 1973
Creators: name: Zwick, Peter
name: Baumann, Richard W.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Nemouridae
Nemoura
Nemoura tau

description: Nemoura tau Zwick 1973 Republic of Korea, Pusan City, Heundae [Busan City, Haeundae], at spring behind Garden Mansion Apts, 18 May 1987, M.F. Whiting, 2♂, 4♀.
description: Published as part of Zwick, Peter & Baumann, Richard W., 2011, Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea, pp. 148-155 in Illiesia 7 (15) on page 154, DOI: 10.5281/zenodo.4760189
High resolution spectroscopy of the BCD galaxy Haro 15:I. Internal kinematics
Creators: name: Firpo, Verónica
name: Bosch, Guillermo
name: Hägele, Guillermo F.
name: Díaz, Ángeles I.
name: Morrell, Nidia
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using echelle spectroscopy, obtained at Las Campanas Observatory, we present a detailed study of the internal kinematics of the nebular material in multiple knots of the blue compact dwarf galaxy Haro 15. A detailed analysis of the complex emission line profiles show the presence of an underlying broad component in almost all knots, and the brightest star-forming region shows unmistakable signs for the presence of two distinct narrow kinematical components. We also study the information that our analysis provides regarding the motion of the individual knots in the Haro 15 galaxy potential, confirming that they follow galactic rotation. Finally, we examine the relation between their velocity dispersion and luminosity, finding that almost all knots follow the relation for virialised systems. This holds for the strong narrow components identified in complex fits and for single profile fits, although the latter show a flatter slope. In agreement with previous findings, in this paper we show that the existence of multiple kinematical components among massive starbursts cannot be overlooked, as it has a noticeable effect on any subsequent analysis that relies on basic parameters.
description: 12 pages, 21 figures
Megaleuctra saebat Ham et Bae 2002
Creators: name: Zwick, Peter
name: Baumann, Richard W.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Leuctridae
Megaleuctra
Megaleuctra saebat

description: Megaleuctra saebat Ham et Bae 2002 Republic of Korea, Gangwan-do [Gangwon Province], Pyeongchang-gun, Odaesan National Park, trail to Songwon [Songwonsa] Temple, 13 May 2006, M. Kippenhan, 1♀.
description: Published as part of Zwick, Peter & Baumann, Richard W., 2011, Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea, pp. 148-155 in Illiesia 7 (15) on page 154, DOI: 10.5281/zenodo.4760189
K-Slicing the Reissner-Nordstrom Spacetime: Some New Observations
Creators: name: Qadir, Asghar
name: Sajid, M.
name: Siddiqui, Azad A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: There were problems encountered in extending the K-slicing of the Schwarzschild and Reissner-Nordstrom (RN) spacetimes [1, 2] to the extreme case, when charge equals mass (in gravitational units). The earlier procedure is here modified so as to allow us to obtain a K-slicing of the region outside the horizon of the extreme metric by spacelike hypersurfaces. We checked this new procedure by applying it to the Schwarzschild and usual RN metrics and recovering the previous foliation with an improved accuracy. We have also checked the asymptotic behaviour of the K-slicing for large K by extrapolation.
description: 15 pages, 5 figures
Perlomyia mahunkai
Creators: name: Zwick, Peter
name: Baumann, Richard W.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Leuctridae
Perlomyia
Perlomyia mahunkai

description: Perlomyia mahunkai (Zwick 1973) Republic of Korea, Pusan City, Heundae [Busan City, Haeundae], at spring behind Garden Mansion Apts, 18 May 1987, M.F. Whiting, 3♂, 25♀. Republic of Korea, Chollanam Province, small village North of Sun-Cheon City [Jeonnam Province, Suncheon City], 12 May 1986, M.F. Whiting, 3♂, 12♀.
description: Published as part of Zwick, Peter & Baumann, Richard W., 2011, Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea, pp. 148-155 in Illiesia 7 (15) on page 155, DOI: 10.5281/zenodo.4760189
The pride learning bias : evidence that pride displays cue knowledge and guide social learning
Creators: name: Martens, Jason Peter
Publisher: name: University of British Columbia
Year: 2014

description: Humans learn a great deal by copying knowledgeable others, but how do individuals determine which social group members have knowledge that should be copied? I argue that the pride nonverbal expression functions to signal expertise and knowledge, and thus to bias learning such that proud others are more likely to be copied. In Study 1, I tested, and found support, for an automatic association between pride displays and knowledge. In Studies 2 and 3, I used different methods to establish the existence of a pride learning bias, which is motivated by a heightened desire for knowledge. That is, I found that pride-displaying confederates are copied significantly more frequently than those displaying other expressions, and that this occurs only when learners are financially motivated to find correct responses, suggesting that pride expressions bias social learning in a functional manner. Study 4 showed that this tendency to copy pride-displaying others transfers to other domains than the domain where pride was originally displayed, suggesting that the expertise of the individual displaying pride generalizes to other areas. In Study 5, I tested the universality of this bias by exploring whether Fijians in a small-scale traditional society demonstrated it; results were inconclusive. In Studies 6 and 7, I tested the automaticity of the bias, and found that participants do not need to be aware of having viewed pride displays in order to show preferential copying behavior (Study 6); however, these results might be due to an automatic bias to attune to positively valenced expressions, rather to pride in particular. Similarly, results were inconclusive regarding whether the pride learning bias occurs efficiently, without the need for working memory (Study 7). Finally, I performed two meta-analyses on the data collected in Studies 2A and 3-7, which supported my earlier conclusions. Together, the findings indicate that pride displays are functional for observers and play a critical role in social learning, and begin to shed light on the nature of this mechanism.
Search for Planets in Hot Jupiter Systems with Multi-Sector TESS Photometry. IV. Null Detections in 12 Systems
Creators: name: Maciejewski, G.
name: Sierzputowska, J.
name: Golonka, J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present the results of our search for nearby planetary companions of transiting hot Jupiters in 12 planetary systems: HAT-P-24, HAT-P-39, HAT-P-42, HAT-P-50, KELT-2, KELT-15, KELT-17, WASP-23, WASP-63, WASP-76, WASP-79, and WASP-161. Our analysis was based on multi-sector time-series photometry from the Transiting Exoplanet Survey Satellite and precise transit timing data sets. We detected no additional transiting planets down to the 2-4 Earth radii regime. For ten hot Jupiters, no departure from linear transit ephemerides was observed. Whilst we refute long-term variations of the orbital period for WASP-161 b, which were claimed in the literature, we notice a tentative hint of the orbital period shortening for WASP-79 b. In addition, we spot a short-period transit timing variation for KELT-2A b with the characteristics typical of the so-called exomoon corridor. We conclude, however, that further observations are required to confirm these findings.
description: Published in Acta Astronomica
Effects of Rotation on Stochasticity of Gravitational Waves in Nonlinear Phase of Core-Collapse Supernovae
Creators: name: Kotake, Kei
name: Nakano, Wakana Iwakami
name: Ohnishi, Naofumi
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: By performing three-dimensional (3D) simulations that demonstrate the neutrino-driven core-collapse supernovae aided by the standing accretion shock instability (SASI), we study how the spiral modes of the SASI can have impacts on the properties of the gravitational-wave (GW) emission. To see the effects of rotation in the non-linear postbounce phase, we give a uniform rotation on the flow advecting from the outer boundary of the iron core, whose specific angular momentum is assumed to agree with recent stellar evolution models. We compute fifteen 3D models in which the initial angular momentum as well as the input neutrino luminosities from the protoneutron star are changed in a systematic manner. By performing a ray-tracing analysis, we accurately estimate the GW amplitudes generated by anisotropic neutrino emission. Our results show that the gravitational waveforms from neutrinos in models that include rotation exhibit a common feature otherwise they vary much more stochastically in the absence of rotation. The breaking of the stochasticity stems from the excess of the neutrino emission parallel to the spin axis. This is because the compression of matter is more enhanced in the vicinity of the equatorial plane due to the growth of the spiral SASI modes, leading to the formation of spiral flows circulating around the spin axis with higher temperatures. We point out that a recently proposed future space interferometers like Fabry-Perot type DECIGO would permit detection of these signals for a Galactic supernova.
description: 13 Figures, ApJ in press
Filchneria stigmata
Creators: name: Zwick, Peter
name: Baumann, Richard W.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlodidae
Filchneria
Filchneria stigmata

description: Filchneria stigmata (Ra, Kim, Kang and Ham 1994) Republic of Korea, Chollanam Province, Sun-Cheon City [Jeonnam Province, Suncheon City], 10-15 April 1986, M. F. Whiting, 1♀, eggs on slide. Republic of Korea, Seoul, 5 VII 1953, E. L. Shepard, 1♀, without mature eggs.
description: Published as part of Zwick, Peter & Baumann, Richard W., 2011, Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea, pp. 148-155 in Illiesia 7 (15) on page 155, DOI: 10.5281/zenodo.4760189
Evaluation of Compensated Magnetism in La$_2$VCuO$_6$: Exploration of Charge States
Creators: name: Pardo, Victor
name: Pickett, Warren E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present an ab initio study of double perovskite La$_2$VCuO$_6$, which was one of the earliest compounds suggested as a potential compensated half-metal. Two charge and spin configurations close in energy have been identified. (i) The originally envisioned spin-compensated V$^{4+}$:d$^1$/Cu$^{2+}$:d$^1$ configuration is comprised of antialigned S=1/2 cations. This state is a spin-compensated half-metal for moderate values of U (the on-site Coulomb repulsion strength on the metal ions) and is insulating for larger values of U. (ii) An unanticipated non-magnetic solution V$^{5+}$:d$^0$/Cu$^{+}$:d$^{10}$ consists of an empty- and a full-shell ion, both spherically symmetric, that leads to a band insulator. This ionic band insulator is calculated to be the ground state at small and moderate values of U. The different distortions of the perovskite structure that occur for each state are central in determining the energy differences. Treating the Cu$^{2+}$ Jahn-Teller distortion self-consistently is particularly important for the magnetic solution.
description: 5 pages, 2 figures, 1 table
Paramagnetic Acoustic Faraday Rotation in Tb3Ga5O12
Creators: name: Thalmeier, Peter
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The acoustic Faraday rotation in the 4f paramagnet Tb3Ga5O12 has recently been observed by Sytcheva et al (arXiv:1006.0141). As in earlier examples the rotation angle per unit length of transverse acoustic modes was found to depend linearly on sound frequency. Existing theories for this effect consistently require that it should vary with the square of the frequency. In the present work a solution for this long-standing problem is provided. We propose a model based on magnetoelastic interactions with 4f quadrupole moments that includes both acoustic and optical phonons. The symmetry allows a direct and induced coupling between the latter. This leads to an indirect acoustic Faraday rotation via the field induced splitting of doubly degenerate optical phonon modes. It varies linearly with frequency in accordance with experiment and dominates the rotation angle. It also explains the observed resonance of the rotation angle in the field range between 17-20 T. The mechanism is of general validity for non-Bravais lattices and applies to previous examples of the acoustic Faraday effect.
description: 12 pages, 3 figures
NMR studies of mechanical mechanisms in whelk egg capsule
Creators: name: Han, Shu
Publisher: name: University of British Columbia
Year: 2014

description: Whelks (sea snails) deposit their eggs into tough protein capsules that protect the eggs from the harsh marine environment. The mechanical properties of the protein capsule are fascinating. At low strain the capsule material is stiff but elastic, while at higher strain the modulus decreases and the material stretches dramatically. X-ray diffraction measurements and Raman spectroscopy suggest that the capsules’ high extensibility is due to a reversible phase transition of component protein building blocks from a compact ɑ-helical conformation to a more extended softer conformation called β*. In this work, a variety of Nuclear Magnetic Resonance (NMR) spectroscopy experiments were performed to study the microscopic basis of the egg capsules’ structure and mechanical properties under extension. We have used deuterated probe molecules to study the molecular alignment of whelk egg capsule (WEC). ²H residual quadrupolar splitting measurements are consistent with a two component model for the molecular alignment of WEC, in agreement with optical measurements showing a cross-plied fibre structure. Measurements of ¹H dipolar linewidth and T₁ time as functions of strain are consistent with a previous model that proposed a gradual transition from ɑ-helical coiled-coils to poorly structured worm-like chains with strain. Residual quadrupolar couplings of absorbed water are not strongly affected by strain. Overall, results obtained from these experiments provide useful information to understand the transition mechanism, and may contribute to the development of WEC-like materials for the applications such as new bioencapsulants for delicate tissue implants.
Critical gravity on AdS2 spacetimes
Creators: name: Myung, Yun Soo
name: Kim, Yong-Wan
name: Park, Young-Jai
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the critical gravity in two dimensional AdS (AdS$_2$) spacetimes, which was obtained from the cosmological topologically massive gravity (TMG$_Λ$) in three dimensions by using the Kaluza-Klein dimensional reduction. We perform the perturbation analysis around AdS$_2$, which may correspond to the near-horizon geometry of the extremal BTZ black hole obtained from the TMG$_Λ$ with identification upon uplifting three dimensions. A massive propagating scalar mode $δF$ satisfies the second-order differential equation away from the critical point of $K=l$, whose solution is given by the Bessel functions. On the other hand, $δF$ satisfies the fourth-order equation at the critical point. We exactly solve the fourth-order equation, and compare it with the log-gravity in two dimensions. Consequently, the critical gravity in two dimensions could not be described by a massless scalar $δF_{\rm ml}$ and its logarithmic partner $δF^{\rm 4th}_{\rm log}$.
description: 17 pages, 3 figures
Additional file 4 of Identification, characterization and expression profiles of E2 and E3 gene superfamilies during the development of tetrasporophytes in Gracilariopsis lemaneiformis (Rhodophyta)
Creators: name: Wu, Qiong
name: Yin, Jingru
name: Jiang, Min
name: Zhang, Jingyu
name: Sui, Zhenghong
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Plant Biology

description: Additional file 4: Supplementary Fig. S4. Conserved domains of HECT type E3 ubiquitin ligases in Gp. lemaneiformis.A The phylogenetic tree. B Protein conserved domains.
Perlinae Latreille 1802
Creators: name: Zwick, Peter
name: Baumann, Richard W.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae

description: Perlinae gen. sp. (Tyloperla sp.?) Peoples Republic of Korea, 1 mile south Chirummal [not located], 1000 ft higher, XI-53, E. Bullock, 8 larvae.
description: Published as part of Zwick, Peter & Baumann, Richard W., 2011, Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea, pp. 148-155 in Illiesia 7 (15) on page 155, DOI: 10.5281/zenodo.4760189
Local moments and symmetry breaking in metallic PrMnSbO
Creators: name: Kimber, Simon A. J.
name: Hill, Adrian H.
name: Zhang, Yu-Zhong
name: Jeschke, Harald O.
name: Valentí, Roser
name: Ritter, Clemens
name: Schellenberg, Inga
name: Hermes, Wilfred
name: Pöttgen, Rainer
name: Argyriou, Dimitri N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report a combined experimental and theoretical investigation of the layered antimonide PrMnSbO which is isostructural to the parent phase of the iron pnictide superconductors. We find linear resistivity near room temperature and Fermi liquid-like T^{2} behaviour below 150 K. Neutron powder diffraction shows that unfrustrated C-type Mn magnetic order develops below \sim 230 K, followed by a spin-flop coupled to induced Pr order. At T \sim 35 K, we find a tetragonal to orthorhombic (T-O) transition. First principles calculations show that the large magnetic moments observed in this metallic compound are of local origin. Our results are thus inconsistent with either the itinerant or frustrated models proposed for symmetry breaking in the iron pnictides. We show that PrMnSbO is instead a rare example of a metal where structural distortions are driven by f-electron degrees of freedom.
Room temperature cathodoluminescence quenching of Er3+ in AlNOEr
Creators: name: Brien, Valerie
name: Edwards, P. R.
name: Boulet, Pascal
name: O'Donnell, Kevin Peter
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This paper reports a cathodoluminescence (CL) spectroscopic study of nanogranular AlNOErx samples with erbiumcontent, x, in the range 0.5--3.6 at%. A wide range of erbium concentration was studied with the aim ofunderstanding the concentration quenching of CL. The composition of thin films, deposited by radiofrequencyreactive magnetron sputtering, was accurately determined by Energy Dispersive X-ray Spectroscopy (EDS). CLemission was investigated in the extended visible spectral range from 350 nm to 850 nm. The critical concentrationof luminescent activator Er3+ above which CL quenching occurs is 1%; the corresponding criticaldistance between Er3+ ions in AlNOErx is about 1.0 nm. The quenching mechanism is discussed. We discount anexchange-mediated interaction in favour of a multipole-multipole phonon-assisted interaction.
Single photon emission and detection at the nanoscale utilizing semiconductor nanowires
Creators: name: Reimer, Michael E.
name: van Kouwen, Maarten P.
name: Barkelid, Maria
name: Hocevar, Moira
name: van Weert, Maarten. H. M.
name: Algra, Rienk E.
name: Bakkers, Erik P. A. M.
name: Bjork, Mikael T.
name: Schmid, Heinz
name: Riel, Heike
name: Kouwenhoven, Leo P.
name: Zwiller, Val
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report recent progress toward on-chip single photon emission and detection in the near infrared utilizing semiconductor nanowires. Our single photon emitter is based on a single InAsP quantum dot embedded in a p-n junction defined along the growth axis of an InP nanowire. Under forward bias, light is emitted from the single quantum dot by electrical injection of electrons and holes. The optical quality of the quantum dot emission is shown to improve when surrounding the dot material by a small intrinsic section of InP. Finally, we report large multiplication factors in excess of 1000 from a single Si nanowire avalanche photodiode comprised of p-doped, intrinsic, and n-doped sections. The large multiplication factor obtained from a single Si nanowire opens up the possibility to detect a single photon at the nanoscale.
description: 11 pages, 7 figures
Kiotina decorata
Creators: name: Zwick, Peter
name: Baumann, Richard W.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Kiotina
Kiotina decorata

description: Kiotina decorata (Zwick 1973) Republic of Korea, Pusan City, Heundae [Busan City, Haeundae], at spring behind Garden Mansion Apts, 18 May 1987, M.F. Whiting, 29 June 1987, M.F. Whiting, 1♂. Republic of Korea, Chollanam Province, small village North of Sun-Cheon City [Jeonnam Province, Suncheon City], 12 May 1986, M.F. Whiting, 2♂, 1♀.
description: Published as part of Zwick, Peter & Baumann, Richard W., 2011, Nemoura Jejudoensis A New Species Of Stonefly And The Redescription Of Amphinemura Baei Ham And Lee (Plecoptera, Nemouridae) From Jeju Island, Korea, pp. 148-155 in Illiesia 7 (15) on page 155, DOI: 10.5281/zenodo.4760189
Topic and genre in dialogue
Creators: name: Decker, Amandine
name: Breitholtz, Ellen
name: Howes, Christine
name: Larsson, Staffan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: In this paper we argue that topic plays a fundamental role in conversations, and that the concept is needed in addition to that of genre to define interactions. In particular, the concepts of genre and topic need to be separated and orthogonally defined. This would enable modular, reliable and controllable flexible-domain dialogue systems.
Electronic structure and magnetism of transition metal doped Zn12O12 clusters: Role of defects
Creators: name: Ganguli, Nirmal
name: Dasgupta, Indra
name: Sanyal, Biplab
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a comprehensive study of the energetics and magnetic properties of ZnO clusters doped with 3d transition metals (TM) using ab initio density functional calculations in the framework of generalized gradient approximation + Hubbard U (GGA+U) method. Our results within GGA+U for all 3d dopants except Ti indicate that antiferromagnetic interaction dominates in a neutral, defect-free cluster. Formation energies are calculated to identify the stable defects in the ZnO cluster. We have analyzed in details the role of these defects to stabilize ferromagnetism when the cluster is doped with Mn, Fe, and Co. Our calculations reveal that in the presence of charged defects the transition metal atoms residing at the surface of the cluster may have an unusual oxidation state, that plays an important role to render the cluster ferromagnetic. Defect induced magnetism in ZnO clusters without any TM dopants is also analyzed. These results on ZnO clusters may have significant contributions in the nanoengineering of defects to achieve desired ferromagnetic properties for spintronic applications.
description: Accepted for publication in "Journal of Applied Physics", 9 pages, 9 figures
On the variants of SVM methods applied to GPR data to classify tack coat characteristics in French pavements: two experimental case studies
Creators: name: Andreoli, Grégory
name: Ihamouten, Amine
name: Nguyen, Mai Lan
name: Fargier, Yannick
name: Fauchard, Cyrille
name: Simonin, Jean-Michel
name: Buliuk, Viktoriia
name: Souriou, David
name: Dérobert, Xavier
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Among the commonly used non-destructive techniques, the Ground Penetrating Radar (GPR) is one of the most widely adopted today for assessing pavement conditions in France. However, conventional radar systems and their forward processing methods have shown their limitations for the physical and geometrical characterization of very thin layers such as tack coats. However, the use of Machine Learning methods applied to GPR with an inverse approach showed that it was numerically possible to identify the tack coat characteristics despite masking effects due to low timefrequency resolution noted in the raw B-scans. Thus, we propose in this paper to apply the inverse approach based on Machine Learning, already validated in previous works on numerical data, on two experimental cases with different pavement structures. The first case corresponds to a validation on known pavement structures on the Gustave Eiffel University (Nantes, France) with its pavement fatigue carousel and the second case focuses on a new real road in Vend{é}e department (France). In both case studies, the performances of SVM/SVR methods showed the efficiency of supervised learning methods to classify and estimate the emulsion proportioning in the tack coats.
Bile Duct Segmentation Methods Under 3D Slicer Applied to ERCP: Advantages and Disadvantages
Creators: name: Essamlali, Abdelhadi
name: Millot-Maysounabe, Vincent
name: Chartier, Marion
name: Salin, Grégoire
name: Becq, Aymeric
name: Arrivé, Lionel
name: Camus, Marine Duboc
name: Szewczyk, Jérôme
name: Claude, Isabelle
Publisher: name: arXiv
Year: 2023
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This article presents an evaluation of biliary tract segmentation methods used for 3D reconstruction, which may be very usefull in various critical interventions, such as endoscopic retrograde cholangiopancreatography (ERCP), using the 3D Slicer software. This article provides an assessment of biliary tract segmentation techniques employed for 3D reconstruction, which can prove highly valuable in diverse critical procedures like endoscopic retrograde cholangiopancreatography (ERCP) through the utilization of 3D Slicer software. Three different methods, namely thresholding, flood filling, and region growing, were assessed in terms of their advantages and disadvantages. The study involved 10 patient cases and employed quantitative indices and qualitative evaluation to assess the segmentations obtained by the different segmentation methods against ground truth. The results indicate that the thresholding method is almost manual and time-consuming, while the flood filling method is semi-automatic and also time-consuming. Although both methods improve segmentation quality, they are not reproducible. Therefore, an automatic method based on region growing was developed to reduce segmentation time, albeit at the expense of quality. These findings highlight the pros and cons of different conventional segmentation methods and underscore the need to explore alternative approaches, such as deep learning, to optimize biliary tract segmentation in the context of ERCP.
Signatures of shape transition in odd-A neutron-rich Rubidium isotopes
Creators: name: Rodriguez-Guzman, R.
name: Sarriguren, P.
name: Robledo, L. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The isotopic evolution of the ground-state nuclear shapes and the systematics of one-quasiproton configurations are studied in odd-A Rubidium isotopes. We use a selfconsistent Hartree-Fock-Bogoliubov formalism based on the Gogny energy density functional with two parametrizations, D1S and D1M, and implemented with the equal filling approximation. We find clear signatures of a sharp shape transition at N=60 in both charge radii and spin-parity of the ground states, which are robust, consistent to each other, and in agreement with experiment. We point out that the combined analysis of these two observables could be used to predict unambiguously new regions where shape transitions might develop.
description: 6 pages, 7 figures. To appear in Phys. Rev. C (Rapid Communications)
Observations of Dispersion Cancellation of Entangled Photon Pairs
Creators: name: O'Donnell, Kevin A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An experimental study of the dispersion cancellation occurring in frequency-entangled photon pairs is presented. The approach uses time-resolved up conversion of the pairs, which has temporal resolution at the fs level, and group-delay dispersion sensitivity of $\approx \ 20 \, \mathrm{fs}^2$ under experimental conditions. The cancellation is demonstrated with dispersion stronger than $\pm 10^3 \, \mathrm{fs}^2$ in the signal $(-)$ and idler $(+)$ modes. The observations represent the generation, compression, and characterization of ultrashort biphotons with correlation width as small as 6.8 times the degenerate optical period.
description: 5 pages, 3 figures
Workflow and Conventions for using Tropy to Annotate Instances of Ajami in West African Manuscripts
Creators: name: Donaldson, Coleman
Publisher: name: Zenodo
Year: 2019
Subjects: Ajami
Tropy

description: A technical note from the Ajami Lab that explains a workflow and set of conventions for annotating instances of Ajami in West African Manuscripts using the software Tropy.

Blog: https://ajami.hypotheses.org/

Project: https://www.manuscript-cultures.uni-hamburg.de/ajami/index_e.html
description: Research supported by Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 344888349
Sub-nanosecond coherent optical manipulation of a single aromatic molecule at cryogenic temperature
Creators: name: Deplano, Quentin
name: Tamarat, Philippe
name: Lounis, Brahim
name: Trebbia, Jean-Baptiste
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Single molecules trapped in the solid state at liquid helium temperatures are promising quantum emitters for the development of quantum technologies owing to their remarkable photostability and their lifetime-limited optical coherence time of the order of 10 ns. The coherent preparation of their electronic state requires resonant excitation with a Rabi period much shorter than their optical coherence time. Sculpting the optical excitation with sharp edges and a high on-off intensity ratio ($\sim 3\times 10^5$) from a single-frequency laser beam, we demonstrate sub-nanosecond drive of a single dibenzanthanthrene molecule embedded in a naphthalene matrix at 3.2$^\circ$K, over more than 17 Rabi periods. With pulses tailored for a half-Rabi period, the electronic excited state is prepared with fidelity as high as 0.97. Using single-molecule Ramsey spectroscopy, we prove up to 5$^\circ$K that the optical coherence lifetime remains at its fundamental upper limit set by twice the excited-state lifetime, making single molecules suitable for quantum bit manipulations under standard cryogen-free cooling technologies.
Multibreather and vortex breather stability in Klein--Gordon lattices: Equivalence between two different approaches
Creators: name: Cuevas, J.
name: Koukouloyannis, V.
name: Kevrekidis, P. G.
name: Archilla, J. F. R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: In this work, we revisit the question of stability of multibreather configurations, i.e., discrete breathers with multiple excited sites at the anti-continuum limit of uncoupled oscillators. We present two methods that yield quantitative predictions about the Floquet multipliers of the linear stability analysis around such exponentially localized in space, time-periodic orbits, based on the Aubry band method and the MacKay effective Hamiltonian method and prove that their conclusions are equivalent. Subsequently, we showcase the usefulness of the methods by a series of case examples including one-dimensional multi-breathers, and two-dimensional vortex breathers in the case of a lattice of linearly coupled oscillators with the Morse potential and in that of the discrete $ϕ^4$ model.
Landauer transport model for Hawking radiation from a Reissner-Nordstrom black hole
Creators: name: Zeng, Xiao-Xiong
name: Zhou, Shi-Wei
name: Liu, Wen-Biao
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The recent work of Nation et al in which Hawking radiation energy and entropy flow from a black hole can be regarded as a one-dimensional (1D) Landauer transport process is extended to the case of a Reissner-Nordstrom (RN) black hole. It is found that the flow of charge current can also be transported via a 1D quantum channel except the current of Hawking radiation. The maximum entropy current, which is shown to be particle statistics independence, is also obtained.
OB-stars as extreme condition test beds
Creators: name: Puls, Joachim
name: Sundqvist, Jon O.
name: González, Jorge G. Rivero
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Massive stars are inherently extreme objects, in terms of radiation, mass loss, rotation, and sometimes also magnetic fields. Concentrating on a (personally biased) subset of processes related to pulsations, rapid rotation and its interplay with mass-loss, and the bi-stability mechanism, we will discuss how active (and normal) OB stars can serve as appropriate laboratories to provide further clues.
description: To be published in the proceedings book of the IAUS 272, Cambridge University Press. Editors C. Neiner, G. Wade, G. Meynet and G. Peters
Fe2+:ZnMgSe single crystals, a new material for active elements of tunable lasers for 4-5 mkm
Creators: name: Zagoruiko, Yu. A.
name: Kovalenko, N. O.
name: Fedorenko, O. A.
name: Gerasimenko, A. S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Proposed is a new laser material for the making of active elements of tunable lasers for mid IR region (4-5 mkm) - Zn1-xMgxSe (0.11
A streaming algorithms approach to approximating hit rate curves
Creators: name: Drudi, Zachary
Publisher: name: University of British Columbia
Year: 2014

description: In this work, we study systems with two levels of memory: a fixed-size cache, and a backing store, each of which contain blocks. In order to serve an IO request, the block must be in the cache. If the block is already in the cache when it is requested, the request is a cache hit. Otherwise it is a cache miss, and the block must be brought into the cache. If the cache is full, a block must be evicted from the cache to make room for the new block. A replacement policy determines which block to evict. In this work, we consider only the LRU policy. An LRU cache evicts the block which was least recently requested. A trace is a sequence of blocks, representing a stream of IO requests. For a given trace, a hit rate curve maps cache sizes to the fraction of hits that such a cache would achieve on the trace. Hit rate curves have been used to design storage systems, partition memory among competing processes, detect phases in a trace, and dynamically adjust heap size in garbage-collected applications. The first algorithm to compute the hit rate curve of a trace over a single pass was given by Mattson et al. in 1970. A long line of work has improved on this initial algorithm. The main contribution of our work is the presentation and formal analysis of two algorithms to approximate hit rate curves. Inspired by recent results in the streaming algorithms community on the distinct elements problem, we use memory efficient probabilistic counters to estimate the number of distinct blocks in a subsequence of the trace, which allows us to approximate the hit rate curve using sublinear space. We also formally state some variants of the hit rate curve approximation problem which our algorithms solve, and derive lower bounds on the space complexity of these problems using tools from communication complexity.
Strain effects on the thermal properties of ultra-scaled Si nanowires
Creators: name: Paul, Abhijeet
name: Klimeck, Gerhard
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The impact of uniaxial and hydrostatic stress on the ballistic thermal conductance ($κ_{l}$) and the specific heat ($C_{v}$) of [100] and [110] Si nanowires are explored using a Modified Valence Force Field phonon model. An anisotropic behavior of $κ_{l}$ and isotropic nature of $C_{v}$ under strain are predicted for the two wire orientations. Compressive (tensile) strain decreases (increases) $C_{v}$. The $C_{v}$ trend with strain is controlled by the high energy phonon sub-bands. Dominant contribution of the low/mid (low/high) energy bands in [100] ([110]) wire and their variation under strain governs the behavior of $κ_{l}$.
description: 4 Figures, 8 Pages, submitted to APL
AFINET project- agroforestry innovation networks - 27th of February 2019 - Projecto "Redes de inovação Agroflorestal" (AFINET) - 27 Fevereiro 2019
Creators: name: Paulo, Joana Amaral
Publisher: name: Zenodo
Year: 2019
Subjects: agroforestry
RAIN
meeting
AFINET

description: Presentation from the 4th portuguese RAIN meeting
Additional file 5 of Identification, characterization and expression profiles of E2 and E3 gene superfamilies during the development of tetrasporophytes in Gracilariopsis lemaneiformis (Rhodophyta)
Creators: name: Wu, Qiong
name: Yin, Jingru
name: Jiang, Min
name: Zhang, Jingyu
name: Sui, Zhenghong
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Plant Biology

description: Additional file 5: Supplementary Fig. S5. Conserved domains of APC/C type E3 ubiquitin ligases in Gp. lemaneiformis. A The phylogenetic tree. B Protein conserved domains.
Impact of heavy hole-light hole coupling on optical selection rules in GaAs quantum dots
Creators: name: Belhadj, Thomas
name: Amand, Thierry
name: Kunold, Alejandro
name: Simon, Claire-Marie
name: Kuroda, T.
name: Abbarchi, M.
name: Mano, T.
name: Sakoda, K.
name: Kunz, Sergej
name: Marie, Xavier
name: Urbaszek, Bernhard
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report strong heavy hole-light mixing in GaAs quantum dots grown by droplet epitaxy. Using the neutral and charged exciton emission as a monitor we observe the direct consequence of quantum dot symmetry reduction in this strain free system. By fitting the polar diagram of the emission with simple analytical expressions obtained from k$\cdot$p theory we are able to extract the mixing that arises from the heavy-light hole coupling due to the geometrical asymmetry of the quantum dot.
description: 4 pages, 2 figures