cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Lecithocera chersitis Meyrick 1918
Creators: name: Oku, Johei
name: Sakamaki, Yositaka
name: Hirowatari, Toshiya
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Lecithoceridae
Lecithocera
Lecithocera chersitis

description: Lecithocera chersitis Meyrick, 1918
[Japanese name: Ookiiro-hosoba-higenaga-kibaga]
(Figs 1a–b, 2a, 3a, 4a, 5a)
 Lecithocera chersitis Meyrick, 1918: 106; Clarke, 1965: 116; Gozmány, 1978: 107; Park & Lee, 1999: 120; Park & Oku, 2006: 176; Sakamaki, 2013: 221; Park et al., 2020: 394.
Type locality: Port Lazaref (=Wonsan), N. Korea, Type specimen in NHMUK.
 Diagnosis. The species can be superficially distinguished from its allies by its large wingspan, forewing with an oblong spot at end of the cell, and hindwing with long hair-pencils on the upper surface at the base in the male. It is similar to L. pelomorpha Meyrick, 1931 but it is smaller than the latter. The male genitalia are also similar, but it can be distinguished by the following combination: costal bar slightly angled; cephalic side of the juxta sharply pointed; the aedeagus with conic apical processes at on both lateral sides, median plates of cornuti consisting of three short triangular sclerites, and connected with a conical spine-like plate basally. The female genitalia are separable by the horizontally elliptical signum.
 Description. See Park & Oku (2006) for detailed description of the adults and genitalia.
 Specimens examined. JAPAN, [Shikoku]: 1 ♂ 1 ♀, Matsuyama Castle area, Matsuyama City, Ehime Pref., 14.vi.2016, J. Oku leg. (1 ♂ Gen. sl. no. Lecithocera No. 6, 1 ♀ Gen. sl. no. Lecithocera No. 7) in ELKU; 2 ♀, same locality, 7.vii.2016, J. Oku leg. (1 ♀ Gen. sl. no. Lecithocera No. 16, wing. sl. no. Lecithocera No. 16-2) in ELKU; 1 ♂ 1♀, same locality, 7.vii.2016, J. Oku leg., in KGU; 1 ♂, same locality, 23.ix.2016, J. Oku leg. (1 ♂ Gen. sl. no. Lecithocera No. 17) in ELKU. [Kyushu]: 1 ♀, Nobu, Tsushima City, Nagasaki Pref., Tsushima Island, 14.vi.2018, T. Terada et al. leg. (1 ♀ Gen. sl. no. Lecithocera No. 87) in ELKU; 2 ♀, Kamisushima, Ushibuka City, Kumamoto Pref., 29.vi.2001, I. Ohshima leg., in HUM; 1 ♀, Taka-toge, Tarumizu City, Kagoshima Pref., 13.ix.2017, J. Oku leg. (1 ♀ Gen. sl. no. Lecithocera No. 50) in ELKU.
 Distribution. Japan: Honshu, Shikoku, Kyushu, Tsushima Island; North & South Korea.
 Biology. Adults fly in early and mid-summer, and early fall.
 Remarks. In Japanese specimens, the species has two color forms: the light-yellow form and the brownishorange form.
description: Published as part of Oku, Johei, Sakamaki, Yositaka & Hirowatari, Toshiya, 2021, Taxonomic revision of the genus Lecithocera (Lepidoptera, Lecithoceridae) from Japan, with descriptions of two new species, pp. 540-554 in Zootaxa 4996 (3) on page 542, DOI: 10.11646/zootaxa.4996.3.7, http://zenodo.org/record/5074869
Universal Decoherence in Solids
Creators: name: Chudnovsky, Eugene M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Symmetry implications for the decoherence of quantum oscillations of a two-state system in a solid are studied. When the oscillation frequency is small compared to the Debye frequency, the universal lower bound on the decoherence due to the atomic environment is derived in terms of the macroscopic parameters of the solid, with no unknown interaction constants.
description: 4 pages, no figures
Detection of strong clustering of red K-selected galaxies at 2
Creators: name: Daddi, E.
name: Rottgering, H.
name: Labbe, I.
name: Rudnick, G.
name: Franx, M.
name: Moorwood, A.
name: Rix, H. -W.
name: van der Werf, P.
name: van Dokkum, P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The clustering properties of faint K<24 galaxies are measured in ultradeep J, H and K near-IR images of the Hubble Deep Field South (HDF-S), obtained with ISAAC at the VLT. A relatively large clustering amplitude is found up to K=24, at a level comparable to the measurements at K~19. The redshift distribution of K<24 galaxies extends to z_phot~4-5, and ~40% of the galaxies are at z_phot>2.At the highest redshifts, 21.7 reach r_0~8 h^-1 Mpc comoving. This is a factor of 3--4 higher than the correlation length of LBGs with similar number densities, down to V_606<27, and is also larger than the correlation length of galaxies with blue J-K<1.7 colors. Hence at z about 3 a color-density relation is observed which is similar to that observed locally. Fluctuations in the amplitude of clustering due to cosmic variance may affect our estimates derived from the small HDF-S field, but these are unlikely to change our main conclusions. The galaxies with red J-K>1.7 colors at 2
description: to appear on ApJ, May 1 issue. See also papers by Franx et al. and van Dokkum et al., on this listing
Optical properties of cubic boron arsenide
Creators: name: Song, Bai
name: Chen, Ke
name: Bushick, Kyle
name: Mengle, Kelsey A.
name: Tian, Fei
name: Gamage, Geethal Amila
name: Ren, Zhifeng
name: Kioupakis, Emmanouil
name: Chen, Gang
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The ultrahigh thermal conductivity of boron arsenide makes it a promising material for next-generation electronics and optoelectronics. In this work, we report measured optical properties of cubic boron arsenide crystals including the complex dielectric function, refractive index, and absorption coefficient in the ultraviolet, visible, and near-infrared wavelength range. The data were collected at room temperature using spectroscopic ellipsometry as well as transmission and reflection spectroscopy. We further calculate the optical response using density functional and many-body perturbation theory, considering quasiparticle and excitonic corrections. The computed values for the direct and indirect band gaps (4.25 eV and 2.07 eV) agree well with the measured results (4.12 eV and 2.02 eV). Our findings contribute to the effort of using boron arsenide in novel electronic and optoelectronic applications that take advantage of its demonstrated ultrahigh thermal conductivity and predicted high ambipolar carrier mobility.
Molecular cloud matching in CO and dust in M33 II. Physical properties of giant molecular clouds
Creators: name: Keilmann, Eduard
name: Kabanovic, Slawa
name: Schneider, Nicola
name: Ossenkopf-Okada, Volker
name: Stutzki, Jürgen
name: Kobayashi, Masato I. N.
name: Simon, Robert
name: Buchbender, Christof
name: Riechers, Dominik
name: Bigiel, Frank
name: Tabatabaei, Fatemeh
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Understanding mass, size, and surface mass density of giant molecular clouds (GMCs) in galaxies is key to insights into star formation processes. We analyze these in M33 using Herschel dust and archival IRAM 30m telescope data, compared to Milky Way CO data. A Dendrogram algorithm on a 2D dust map and a Xco factor map are used for M33 instead of a constant value. Dust and CO-derived values are similar, with mean radii of $\sim\,$$58\,$pc for the dust and $\sim\,$$68\,$pc for CO.
 Largest GMAs are about $150\,$pc in radius, similar to the Milky Way, suggesting a size-limiting process. M33 contains less massive, lower-density GMCs compared to the Milky Way. The highest mass GMCs observed in the Milky Way are mostly absent in M33. M33's mean surface mass density is much lower, due to the Milky Way's higher column densities despite similar GMC areas.
 No systematic gradients in M33's physical properties were found with galactocentric radius, but higher densities and masses near the center suggest increased star formation. In both galaxies, 30% of molecular mass is central. The GMC mass power-law spectrum index is $α=2.3\pm0.1$ and $α=1.9\pm0.1$ for dust and CO in M33, respectively.
 We conclude that M33 and Milky Way GMCs are mostly similar, though M33 lacks high-mass GMCs, with no clear explanation. GMC properties weakly depend on galactic environment, with stellar feedback as a factor needing further study.
Ophidiaster hemprichi M. Tr.
Creators: name: Jangoux, Michel
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Asteroidea
Valvatida
Ophidiasteridae
Ophidiaster
Ophidiaster hemprichi

description: purpureus Perrier, 1869, Ophidiaster
(Fig. 32)
Ophidiaster purpureus Perrier, 1869: 61; 1875: 127.
Ophidiaster hemprichi – Clark 1993: 349.
CURRENT STATUS. — Ophidiaster hemprichi (Müller & Troschel, 1842).
M ATERIAL EXAMINED. — Seychelles • MNHN-IE-2014-404; holotype; Rousseau leg.; 1842.
DISTRIBUTION. — The species is rather common in the tropical Indo-West-Pacific.
REMARK
Perrier (1875: 127) established the species O. purpureus to accommodate one of the two specimens that Lamarck identified as a representative of his new species Asterias cylindrica, (O. purpureus is now considered a synonym of Ophidiaster hemprichi (Müller & Troschel, 1842)). Yet Perrier did not consider the second Lamarck specimen of Asterias cylindrica to designate the holotype of O. purpureus. He assigned as holotype an individual collected by Rousseau in the Seychelles in 1842.
description: Published as part of Jangoux, Michel, 2021, The asteroid species of Lamarck (Echinodermata: Asteroidea), pp. 213-252 in Zoosystema 43 (13) on page 240, DOI: 10.5252/zoosystema2021v43a13, http://zenodo.org/record/4768141
Towards a diagrammatic derivation of the Veneziano-Yankielowicz-Taylor superpotential
Creators: name: Ambjorn, Jan
name: Janik, Romuald A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show how it is possible to integrate out chiral matter fields in N=1 supersymmetric theories and in this way derive in a simple diagrammatic way the $N_f S \log S - S \log \det X$ part of the Veneziano-Yankielowicz-Taylor superpotential.
description: 8 pages, 2 figures
Coupling constant dependence of the shear viscosity in N=4 supersymmetric Yang-Mills theory
Creators: name: Buchel, Alex
name: Liu, James T.
name: Starinets, Andrei O.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Gauge theory - gravity duality predicts that the shear viscosity of N=4 supersymmetric SU(N_c) Yang-Mills plasma at temperature T in the limit of large N_c and large 't Hooft coupling g^2_{YM} N_c is independent of the coupling and equals to πN_c^2 T^3/8. In this paper, we compute the leading correction to the shear viscosity in inverse powers of 't Hooft coupling using the α'-corrected low-energy effective action of type IIB string theory. We also find the correction to the ratio of shear viscosity to the volume entropy density (equal to 1/4πin the limit of infinite coupling). The correction to 1/4πscales as (g^2_{YM} N_c)^{-3/2} with a positive coefficient.
description: 15 pages; references added; a note on the normalization of the gauge coupling constant added in version 3
title: National Coral Reef Monitoring Program Socioeconomic Monitoring Component: Summary Findings for Guam, 2023
Creators: name: Allen, Mary
name: Fleming, Chloe
name: Alva, Amanda
name: Gonyo, Sarah
name: Towle, Erica
Publisher: name: Coral Reef Conservation Program (U.S.)
Year: 2024

description: NOAA technical memorandum CRCP ; 51
description: This report presents primary data collected for the second socioeconomic monitoring cycle in Guam (the first monitoring cycle was completed in 2016). The survey was conducted in person with household residents from January to April 2023.
HOW INTEREST RATES AFFECT INVESTMENT BEHAVIOR IN NIGERIA'S FINANCIAL MARKETS
Creators: name: Emmanuel, Chijioke Nnamdi
name: Grace, Oluchi Ibekwe
Publisher: name: NOLAND JOURNALS
Year: 2024
Subjects: Interest rate, Investment behaviour, Nigeria, financial market

description: The study examined the impacts of interest rate on investment decision in Nigeria. The study specifically found out the impact of deposit interest rate, exchange and inflation rate on investment decision in Nigeria. The study had 3 research questions and 3 hypotheses. The study adopted the descriptive research design. Data used covered a period of 32 years (1990-2022). Data for the study were collected from the World Development Indicators website for Nigeria. The study adopted method of maximum likelihood in our estimations. Evaluations of results are based on two criteria, namely, economic criterion – a priori behavior of the parameters and their economic implications and statistical criterion – use of R2, F, and t- statistics to test the explanatory power of the estimated parameters. While Eviews version 7.0 was the software package used for the estimations. The results of the study showed that interest rate is a significant determinant of investment decision in Nigeria. This should be expected as the cost on capital plays major role in investment decisions and the prospects of investment in most economies. The finding shows that there exists a comparison between interest rate behavior and investment decision in Nigeria as we have in China. Hence, there is no difference in the impact of interest rate on investment decisions during the period in both countries. Finally, the result of the cointegration shows that there’s a long run relationship which makes investment responds negatively to shocks arising from interest rate and positively in the short run as seen in the study. Hence, any change in these variables exerts positive influence on investment. It was concluded that deposit interest rate, exchange rate as well as inflation rate and investment have a significant and positive relationship. Therefore, it was recommended that monetary authorities should promote policy that will improve deposits and also make available loanable funds to encourage investment. Monetary authorities should make policies which would help to boost the saving culture of the people. This could be done by increasing the deposit rate which would lure the people to deposit their money in banks thereby increasing the supply of loanable funds. This would lead to a fall in interest rate and eventually rise in investment
Supplementary Materials from Characterization of the RNA-interference pathway as a tool for reverse genetic analysis in the nascent phototrophic endosymbiosis, Paramecium bursaria
Creators: name: Jenkins, Benjamin H.
name: Maguire, Finlay
name: Leonard, Guy
name: Eaton, Joshua D.
name: West, Steven
name: Housden, Benjamin E.
name: Milner, David S.
name: Richards, Thomas A.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 60408 Genomics

description: Figures S1-2, Datasets S1-8 and Supplementary Methods
Spectroscopic Confirmation of a Substantial Population of Luminous Red Galaxies at Redshifts z>2
Creators: name: van Dokkum, Pieter G.
name: Schreiber, Natascha M. Forster
name: Franx, Marijn
name: Daddi, Emanuele
name: Illingworth, Garth D.
name: Labbe, Ivo
name: Moorwood, Alan
name: Rix, Hans-Walter
name: Rottgering, Huub
name: Rudnick, Gregory
name: van der Wel, Arjen
name: van der Werf, Paul
name: van Starkenburg, Lottie
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We confirm spectroscopically the existence of a population of galaxies at z>~2 with rest-frame optical colors similar to normal nearby galaxies. The galaxies were identified by their red near-infrared colors in deep images obtained with ISAAC on the Very Large Telescope. Redshifts of six galaxies with Js-Ks>2.3 were measured from optical spectra obtained with the Keck Telescope. Five out of six are in the range 2.43<=z<=3.52, demonstrating that the Js-Ks color selection is quite efficient. The rest-frame ultraviolet spectra of confirmed z>2 galaxies display a range of properties, with two galaxies showing emission lines characteristic of AGN, two having Ly-alpha in emission, and one showing interstellar absorption lines only. Their full spectral energy distributions are well described by constant star formation models with ages 1.4-2.6 Gyr, except for one galaxy whose colors indicate a dusty starburst. The confirmed z>2 galaxies are very luminous, with Ks=19.2-19.9. Assuming that our bright spectroscopic sample is representative for the general population of Js-Ks selected objects, we find that the surface density of red z>~2 galaxies is ~0.9/arcmin^2 to Ks=21. The surface density is comparable to that of Lyman-break selected galaxies with Ks<21, when corrections are made for the different redshift distributions of the two samples. Although there will be some overlap between the two populations, most 'optical-break' galaxies are too faint in the rest-frame ultraviolet to be selected as Lyman-break galaxies. The most straightforward interpretation is that star formation in typical optical-break galaxies started earlier than in typical Lyman-break galaxies. Optical-break galaxies may be the oldest and most massive galaxies yet identified at z>2, and could evolve into early-type galaxies and bulges.
description: Accepted for publication in the Astrophysical Journal Letters. (see also papers by Franx et al. and Daddi et al. in this listing)
Eigenvalues and virtual levels of a family of $2 \times 2$ operator matrices
Creators: name: Rasulov, Tulkin H.
name: Dilmurodov, Elyor B.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In the present paper we consider a family of $2 \times 2$ operator matrices ${\mathcal A}_μ(k),$ $k \in {\Bbb T}^3:=(-π, π]^3,$ $μ>0,$ associated with the Hamiltonian of a system consisting of at most two particles on a three-dimensional lattice ${\Bbb Z}^3,$ interacting via creation and annihilation operators. We prove that there is a value $μ_0$ of the parameter $μ$ such that only for $μ=μ_0$ the operator ${\mathcal A}_μ(\overline{0})$ has a virtual level at the point $z=0=\minσ_{\rm ess}({\mathcal A}_μ(\overline{0}))$ and the operator ${\mathcal A}_μ(\overlineπ)$ has a virtual level at the point $z=18=\maxσ_{\rm ess}({\mathcal A}_μ(\overlineπ))$, where $\overline{0}:=(0,0,0), \overlineπ:=(π,π,π) \in {\Bbb T}^3.$ The absence of the eigenvalues of ${\mathcal A}_μ(k)$ for all values of $k$ under the assumption that $μ=μ_0$ is shown. The threshold energy expansions for the Fredholm determinant associated to ${\mathcal A}_μ(k)$ are obtained.
description: 8 pages
Stoliczkia Jerdon 1870
Creators: name: Lalronunga, Samuel
name: Lalhmangaiha, K.
name: Zosangliana, Isaac
name: Lalhmingliani, Esther
name: Gower, David J.
name: Das, Abhijit
name: Deepak, V.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Xenodermatidae
Stoliczkia

description: Key to the identification of the species of Stoliczkia
 1 Dark dorsum with many dorsolateral and middorsal pale blotches; eye separated from supralabials by small subocular scales; Borneo................................................................................... S. borneensis
- Dark dorsum and pale venter meet along a regular, straight line; eye in contact with some supralabials; Northeast India.... 2
 2 Dorsal scale rows at midbody 33; three supraocular shields per side; ventrals <200 (194 in only known specimen); subcaudals> 125 (138 in only known specimen).................................................. S. vanhnuailianai sp. nov.
 - Dorsal scale rows at midbody 31; one supraocular shield per side; ventrals> 200 (207 and 208 in only two known specimens); subcaudals <125 (114 and 115 in only two known specimens......................................... S. khasiensis
description: Published as part of Lalronunga, Samuel, Lalhmangaiha, K., Zosangliana, Isaac, Lalhmingliani, Esther, Gower, David J., Das, Abhijit & Deepak, V., 2021, A new species of Stoliczkia Jerdon, 1870 (Serpentes: Xenodermidae) from Mizoram India, pp. 569-580 in Zootaxa 4996 (3) on page 577, DOI: 10.11646/zootaxa.4996.3.9, http://zenodo.org/record/5074909
Resummed effective action in the world-line formalism
Creators: name: Auer, Thomas
name: Schmidt, Michael G.
name: Zahlten, Claus
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using the world-line method we resum the scalar one-loop effective action. This is based on an exact expression for the one-loop action obtained for a background potential and a Taylor expansion of the potential up to quadratic order in x-space. We thus reproduce results of Masso and Rota very economically. An alternative resummation scheme is suggested using ``center of mass'' based loops which is equivalent under the assumption of vanishing third and higher derivatives in the Taylor expansion but leads to simplified expressions. In an appendix some general issues concerning the relation between world-line integrals with fixed end points versus integrals with fixed center are clarified. We finally note that this method is also very valuable for gauge field effective actions where it is based on the Euler--Heisenberg type resummation.
description: 15 pages
Anseropoda rosacea
Creators: name: Jangoux, Michel
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Asteroidea
Valvatida
Asterinidae
Anseropoda
Anseropoda rosacea

description: rosacea var. lobis quindenis Lamarck, 1816, Asterias (Fig. 33)
Asterias rosacea Lamarck, 1816: 558.
Anseropoda rosacea – Clark 1993: 206.
CURRENT STATUS. — Anseropoda rosacea (Lamarck, 1816).
MATERIAL EXAMINED. — MNHN-IE-2014-62; holotype; Baudin expedition (1800-1804); Péron and Lesueur leg. • MHNH; Lesueur drawings collection; ref. 7435; Baudin expedition.
DISTRIBUTION. — West, north and north-east Australia, Indonesia, tropical West Pacific.
REMARK
Lamarck (1816) gave no type locality for the species.
description: Published as part of Jangoux, Michel, 2021, The asteroid species of Lamarck (Echinodermata: Asteroidea), pp. 213-252 in Zoosystema 43 (13) on page 242, DOI: 10.5252/zoosystema2021v43a13, http://zenodo.org/record/4768141
Late Quaternary human-environment interaction in Bunuba and Gooniyandi country, Western Australia
Creators: name: Whitau, Rose Hannah
Publisher: name: The Australian National University
Year: 2018
Subjects: Australian Aboriginal archaeology
Indigenous archaeology
archaeobotany
human-environment interaction
palacoenviror.mental reconstruction
anthracology
palynofogy
X-ray microtomography
wooden artefacts
multi-proxy research
Ounuba
Gooniyandi
Kimberley region Western Australia

description: In north Western Australia, records of palaeoenvironmental change are scarce or under explored, particularly terrestrial archives that allow for comparison with the archaeological record and examination of human-environment interaction in the past. The extent to which these records reflect localised vegetation responses to climate fluctuations, and the manner in which people adapted to these changes in climate and vegetation, has yet to be investigated within the context of stratified archaeological inquiry. Analysis of archaeobotanical proxies excavated in association with other cultural remains provide the obvious evidential link to this issue; however, archaeobotany is rarely applied in Australian archaeology due to a lack of application of appropriate field techniques, limited reference collections, and the poor preservation of organic remains. This research, which is part of the ARC Linkage Project: Lifeways of the First Australians, investigates human-environment interaction using archaeobotanical techniques at two sites in the Kimberley region of northern Western Australia: Riwi and Mount Behn rockshelter, during the late Quaternary. Located on the edge of the Great Sandy Desert in Gooniyandi country, Riwi has a discontinuous occupation sequence of about 45 ka, while Mount Behn rockshelter, located some 180 km northwest of Riwi in Bunuba country, has an occupation sequence of ~3 ka. Anthracology (wood charcoal), palynology (pollen and spores), and wood identification using X-ray microtomography are used alongside other research from the Lifeways Project to reconstruct vegetation, investigate humanenvironment interaction, and explore the taphonomy and representativeness of the different proxy data sets. The findings from each site are then located within a regional narrative of human-environment interaction.
Renormalization of group field theories for quantum gravity: new scaling results and some suggestions
Creators: name: Finocchiaro, Marco
name: Oriti, Daniele
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss motivation and goals of renormalization analyses of group field theory models of simplicial 4d quantum gravity, and review briefly the status of this research area. We present some new computations of perturbative GFT (spin foam) amplitudes, concerning in particular the scaling behaviour of radiative corrections to N-point functions. Finally, we single out key open issues and suggest a number of research directions for further progress in this area.
description: 29 pages, 19 figures/tables; v2: 32 pages, improved presentation on several points, some typos corrected, references added
Weak lensing in generalized gravity theories
Creators: name: Acquaviva, Viviana
name: Baccigalupi, Carlo
name: Perrotta, Francesca
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We extend the theory of weak gravitational lensing to cosmologies with generalized gravity, described in the Lagrangian by a generic function depending on the Ricci scalar and a non-minimal coupled scalar field. We work out the generalized Poisson equations relating the dynamics of the fluctuating components to the two gauge invariant scalar gravitational potentials, fixing the new contributions from the modified background expansion and fluctuations. We show how the lensing equation gets modified by the cosmic expansion as well as by the presence of the anisotropic stress, which is non-null at the linear level both in scalar-tensor gravity and in theories where the gravitational Lagrangian term features a non-minimal dependence on the Ricci scalar. Starting from the geodesic deviation, we derive the generalized expressions for the shear tensor and projected lensing potential, encoding the spacetime variation of the effective gravitational constant and isolating the contribution of the anisotropic stress, which introduces a correction due to the spatial correlation between the gravitational potentials. Finally, we work out the expressions of the lensing convergence power spectrum as well as the correlation between the lensing potential and the Integrated Sachs-Wolfe effect affecting Cosmic Microwave Background total intensity and polarization anisotropies. To illustrate phenomenologically the new effects, we work out approximate expressions for the quantities above in Extended Quintessence scenarios where the scalar field coupled to gravity plays the role of the dark energy.
description: 17 pages, matching version accepted for publication in Phys. Rev. D
Fluid Boundaries: the hyporheic zone of a tropical tidal river
Creators: name: Harriden, Kate
Publisher: name: The Australian National University
Year: 2014
Subjects: Bank Pakong River
hyporheic zone
Thailand
tidal river
tropical river

description: While the hyporheic zone is increasingly acknowledged as an important component of the hydrological cycle, being critical to ground water and surface water interactions, knowledge of its hydrological functioning is still limited, particularly at local scales. Tropical and tidal hyporheic zones principally are underrepresented in academic studies, in spite of their geographical significance. The distinct seasonality of the tropics, combined with known tidal influences, such as tidal pumping, suggests different hydrological processes dominate in tropical and tidal systems to those of non-tidal or temperate rivers. This research is an initial attempt to articulate the complexity of local hyporheic zone characteristics of a site on the Bang Pakong River, Thailand. This characterization began with a literature-based conceptual model of the hyporheic flux paths and velocity and zone morphology of a generic site on the river that was then refined into a field model, using field observations and limited field data gathered during a dry-season field trip to a specific site. The resultant field model clearly demonstrated increased hydrological complexity. It was argued that this complexity was a response to local-scale features; features invisible to regional-scale research. For example, the conceptual model predicted hyporheic zone morphology included level layers, however the presence of a secondary channel at the research site suggested a concave morphology. With limited knowledge of the Bang Pakong River’s hyporheic zone, and tropical and tidal hyporheic zones generally, this research represents a modest, yet important, starting point to better understanding the hydrological function of these zones. Such knowledge contributes to an increased appreciation of hyporheic zone behaviour more broadly, as well as providing specific information to incorporate in policies and practices guiding the management of tropical tidal rivers.
Accelerating Hasenbusch's acceleration of Hybrid Monte Carlo
Creators: name: Khan, A. Ali
name: Bakeyev, T.
name: Göckeler, M.
name: Horsley, R.
name: Pleiter, D.
name: Rakow, P. E. L.
name: Schäfer, A.
name: Schierholz, G.
name: Stüben, H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Hasenbusch has proposed splitting the pseudo-fermionic action into two parts, in order to speed-up Hybrid Monte Carlo simulations of QCD. We have tested a different splitting, also using clover-improved Wilson fermions. An additional speed-up between 5 and 20% over the original proposal was achieved in production runs.
description: Poster presented by H. Stueben at Lattice2003, meta-data corrected
Wess-Zumino sigma models with non-Kahlerian geometry
Creators: name: Stelle, K. S.
name: Van Proeyen, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Supersymmetry of the Wess-Zumino (N=1, D=4) multiplet allows field equations that determine a larger class of geometries than the familiar Kahler manifolds, in which covariantly holomorphic vectors rather than a scalar superpotential determine the forces. Indeed, relaxing the requirement that the field equations be derivable from an action leads to complex flat geometry. The Batalin-Vilkovisky formalism is used to show that if one requires that the field equations be derivable from an action, we once again recover the restriction to Kahler geometry, with forces derived from a scalar superpotential.
description: 13 pages, Latex
Editorial for the Special Issue "Progress in Group Field Theory and Related Quantum Gravity Formalisms"
Creators: name: Carrozza, Sylvain
name: Gielen, Steffen
name: Oriti, Daniele
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This Editorial introduces the Special Issue "Progress in Group Field Theory and Related Quantum Gravity Formalisms" which includes a number of research and review articles covering results in the group field theory (GFT) formalism for quantum gravity and in various neighbouring areas of quantum gravity research. We give a brief overview of the basic ideas of the GFT formalism, list some of its connections to other fields, and then summarise all contributions to the Special Issue.
description: 8 pages
QODIRIY IJODIDA SEVGI, DO'STLIK VA OILAVIY MUNOSABATLAR, INSONLAR O'RTASIDAGI MUNOSABATLARNI TAHLILI BADIIY TARZDA IFODALANISHI
Creators: name: Jurakulov Jamol Komilovich  Renessans ta'lim universiteti "Ijtimoiy-siyosiy fanlar" kafedrasi dotsenti,  PhD Toshkent shahar, tel: +99897 007 63 14. E-mail: jurakulovjamol904@gmail.com
name: Renessans ta'lim universiteti Milliy gʻoya, maʼnaviyat asoslari va huquq taʻlimi yo'nalishi 5-kurs talabasi Xakimxonova Xamida Muhitdinovna Toshkent shahar, tel: +99890 944 42 42
Publisher: name: Zenodo
Year: 2025

description: ushbu maqolamizda Abdulla Qodiriy ijodida sevgi, do‘stlik va oilaviy munosabatlar, shuningdek, insonlar o‘rtasidagi munosabatlar juda muhim o‘rin tutadi. Uning asarlarida bu mavzular badiiy tarzda chuqur va mahorat bilan ifodalanadi, bu esa o‘quvchilarga insoniy munosabatlarning murakkabligini va go‘zalligini anglash imkoni xaqida fikir muloxaza yuritamiz.
Supplemental Methods & Results from Habitat loss on the breeding grounds is a major contributor to population declines in a long-distance migratory songbird
Creators: name: Hallworth, Michael T.
name: Bayne, Erin
name: McKinnon, Emily
name: Love, Oliver
name: Junior A. Tremblay
name: Drolet, Bruno
name: Ibarzabal, Jacques
name: Van Wilgenburg, Steven
name: Marra, Peter P.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences

description: Supplemental Methods, Results & JAGS model
Trade-Offs In Zebrafish (Danio rerio) Associated with Development In a Low pH-Environment
Creators: name: Tigert, Liam
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2021
Subjects: Zebrafish
Low-pH
Development
Osmorespiratory Compromise
Cortisol
Stress

description: Low water pH is an ionoregulatory challenge to freshwater teleosts. Larval zebrafish (Danio rerio) exposed to pH 4 water experience increased loss of Na⁺ and respond with increases in ionocyte abundance and whole-body concentrations of cortisol. Because cortisol plays a role in regulating early development, particularly of the stress axis, the present study asked whether the increase in cortisol in embryos exposed to pH 4 water causes dysregulation of the stress axis in later life. Baseline whole-body cortisol levels measured at 4, 6, and 15 days post-fertilization (dpf) did not differ between pH 4-exposed and control fish. At 6 dpf, pH 4-exposed fish had higher concentrations of cortisol compared to control fish following a stressor, but no difference was detected at 15 dpf. In addition, transcript abundances for key genes of the stress axis did not differ between control and pH 4-exposed fish. Based on these results, exposure to pH 4 water in early life does not influence the stress axis or cortisol responses later in life. Increases in ionocyte abundance in response to low pH have the potential to alter gill morphology, thereby impairing gas transfer, a trade-off known as the osmorespiratory compromise. The present study tested the hypothesis that zebrafish reared in pH 4 water have reduced gas transfer capacity in accordance with the osmorespiratory compromise. Indicators of gas transfer and ionoregulation were measured at 6, 15, 30 and 90 dpf. Across all ages examined, fish reared in pH 4 water had significantly higher whole-body concentrations of Na⁺, higher ionocyte abundances and thicker gills than control fish. These differences were accompanied by higher ventilation frequencies and higher critical PO₂ (Pcrit) values. Additionally, adult fish raised in low pH had a significantly higher rate of oxygen consumption compared to control fish. These results support the hypothesis that development in water of low pH impairs gas transfer, as predicted by the osmorespiratory compromise.
Chandra Observations of the Mice
Creators: name: Read, A. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Presented here are high spatial and spectral resolution Chandra X-ray observations of the famous interacting galaxy pair, the Mice, a system similar to, though less evolved than, the well-known Antennae galaxies. Previously unpublished ROSAT HRI data of the system are also presented. Starburst-driven galactic winds outflowing along the minor axis of both galaxies (but particularly the northern) are observed, and spectral and spatial properties, and energetics are presented. That such a phenomenon can occur in such a rapidly-evolving and turbulent system is surprising, and this is the first time that the very beginning - the onset, of starburst-driven hot gaseous outflow in a full-blown disk-disk merger has been seen. Point source emission is seen at the galaxy nuclei, and within the interaction-induced tidal tails. Further point source emission is associated with the galactic bar in the southern system. A comparison of the source X-ray luminosity function and of the diffuse emission properties is made with the Antennae and other galaxies, and evidence of a more rapid evolution of the source population than the diffuse component is found. No evidence for variability is found between the Chandra and previous observations.
description: 11 pages, 8 figures, accepted by MNRAS, low-resolution figures included, high-resolution version available at http://www.sr.bham.ac.uk/~amr/publications.html
Young stars raining through the Galactic Halo: the nature and orbit of Price-Whelan 1
Creators: name: Bellazzini, M.
name: Ibata, R. A.
name: Martin, N.
name: Malhan, K.
name: Marasco, A.
name: Famaey, B.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present radial velocities for five member stars of the recently discovered young (age= 100-150 Myr) stellar system Price-Whelan 1 (PW 1), that is located far away in the Galactic Halo (D~ 29 kpc, Z~ 15 kpc), and that is probably associated to the Leading Arm (LA) of the Magellanic Stream. We measure the systemic radial velocity of PW 1, V_r=275 +/- 10 km/s, significantly larger than the velocity of the LA gas in the same direction. We re-discuss the main properties and the origin of this system in the light of these new observations, computing the orbit of the system and comparing its velocity with that of the HI in its surroundings. We show that the bulk of the gas at the velocity of the stars is more than 10 deg (5~kpc) away from PW 1 and the velocity difference between the gas and the stars become larger as gas closer to the stars is considered. We discuss the possibilities that (a) the parent gas cloud was dissolved by the interaction with the Galactic gas, and (b) that the parent cloud is the high velocity cloud HVC287.5+22.5+240, lagging behind the stellar system by ~25 km/s and ~10 deg.
description: Accepted for publication in MNRAS. 11 pages, 12 figures (color)
GOLD Mine: A new Galaxy Database on the WEB
Creators: name: Gavazzi, G.
name: Boselli, A.
name: Donati, A.
name: Franzetti, P.
name: Scodeggio, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The galaxy database "GOLDmine" (http://goldmine.mib.infn.it/) has been significantly updated (Sept/1/2003) The new features include: a) Sample extension:the GOLDmine sample has been extended from the original Virgo cluster + Coma supercluster regions to include the clusters: A262, Cancer, A2147, A2151, A2197, A2199. 382 galaxies from the GCGC (with m_p<15.7) have been added in these regions. b) New query keys: 1) query by near position (and near name). 2) query by available images. c) Routinary image update: 1) 59 (B). 72 (V) and 70 (H_alpha) new frames from observations carried on by the GOLDmine team in spring 2003. 2) 157 new optical (drift-scan) spectra from observations carried on by the GOLDmine team in 2002-2003. 3) 225 B frames of VCC galaxies taken with the INT (kindly provided by S. Sabatini). 4) 56 B frames of galaxies in A1367 taken with the CFHT (kindly provided by M. Treyer). 5) 20 (H), 32 (K) band frames of bright Virgo members (from 2MASS). The new numbers in GOLDmine are: 3649 galaxies, 706 V-band frames, 858 B-band frames, 385 H_alpha frames (NET), 385 H_alpha frames (OFF-band), 1241 H-band frames, 114 K-band frames, 323 Spectra All frames are available in FITS (and jpg) format.
Magnetic Fields and Ionized Gas in the inner Galaxy: An Outer Scale for Turbulence and the Possible Role of HII Regions
Creators: name: Haverkorn, M.
name: Gaensler, B. M.
name: McClure-Griffiths, N. M.
name: Dickey, John M.
name: Green, A. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an analysis of rotation measure (RM) fluctuations from the Test Region of the Southern Galactic Plane Survey (SGPS), along with emission measure (EM) fluctuations in the same field taken from the Southern H-Alpha Sky Survey Atlas. The structure function of RM fluctuations shows a relatively steep slope at small scales (1-5 arcmin), a break in slope to a flatter structure function at intermediate scales (5-60 arcmin), and a systematic variation of the strength of fluctuations as a function of position angle on the sky at the largest scales (60-200 arcmin). The structure function of EM fluctuations shows similar behavior, although the lower resolution of the data prevents detection of a possible break in the spectrum. We interpret the anisotropy in RM/EM structure on large scales as resulting from a large-scale gradient in electron density (and possibly magnetic field) across the region. The break in the slope of the RM structure function at scales of about 5 arcmin can be explained by contributions from two spatially distinct magneto-ionized screens, most likely in the Local and Carina spiral arms. The observed structure function then implies that the outer scale of RM fluctuations in these screens is about 2 pc. We conclude that we have identified an additional source of enhanced turbulence, injected on scales of a few pc, possibly seen only in the Galactic plane. The most likely source of such turbulence is individual HII regions from relatively low-mass stars, whose characteristic scale size is similar to the outer scale of turbulence inferred here. These sources may be the dominant source of density and velocity fluctuations in warm ionized gas in the Galactic plane.
description: 16 pages, 8 figures, accepted by ApJ. High-resolution version of Figure 1 available at http://hea-www.harvard.edu/~marijke/files/f1.ps
A Rapid Microlensing Event in the Q0957+561 A,B Gravitational Lens System
Creators: name: Colley, Wesley N.
name: Schild, Rudolph E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We re-analyze brightness data sampled intensively over 5 nights at two epochs separated by the quasar lens time delay, to examine the nature of the observed microlensing. We find strong evidence for a microlensing event with an amplitude of 1% and a time scale of twelve hours. The existence of such rapid microlensing, albeit at low amplitude, imposes constraints on the nature of the quasar and of the baryonic dark matter.
FigS2.pdf from A semi-empirical model of the aerodynamics of manoeuvring insect flight
Creators: name: Walker, Simon M.
name: Taylor, Graham K.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: 110601 Biomechanics
subject: FOS: Health sciences

description: Blade element modelling provides a quick analytical method for estimating the aerodynamic forces produced during insect flight, but such models have yet to be tested rigorously using kinematic data recorded from free-flying insects. This is largely because of the paucity of detailed free-flight kinematic data, but also because analytical limitations in existing blade element models mean that they cannot incorporate the complex three-dimensional movements of the wings and body that occur during insect flight. Here, we present a blade element model with empirically fitted aerodynamic force coefficients that incorporates the full three-dimensional wing kinematics of manoeuvring Eristalis hoverflies, including torsional deformation of their wings. The two free parameters were fitted to a large free-flight dataset comprising N = 26 541 wingbeats, and the fitted model captured approximately 80% of the variation in the stroke-averaged forces in the sagittal plane. We tested the robustness of the model by subsampling the data, and found little variation in the parameter estimates across subsamples comprising 10% of the flight sequences. The simplicity and generality of the model that we present is such that it can be readily applied to kinematic datasets from other insects, and also used for the study of insect flight dynamics.
Cosmological Scaling Solutions and Cross-coupling Exponential Potential
Creators: name: Guo, Zong-Kuan
name: Piao, Yun-Song
name: Cai, Rong-Gen
name: Zhang, Yuan-Zhong
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a phase-space analysis of cosmology containing multiple scalar fields with a positive or negative cross-coupling exponential potential. We show that there exist power-law kinetic-potential-scaling solutions for a sufficiently flat positive potential or for a steep negative potential. The former is the unique late-time attractor, but it is difficult to yield assisted inflation. The later is never stable in an expanding universe. Moreover, for a steep negative potential there exists a kinetic-dominated regime in which each solution is a late-time attractor. In the presence of ordinary matter these scaling solutions with a negative cross-coupling potential are found unstable. We briefly discuss the physical consequences of these results.
description: 9 pages, LaTeX2e
Atomic interaction effects in the superradiant light scattering from a Bose-Einstein condensate
Creators: name: Piovella, N.
name: Salasnich, L.
name: Bonifacio, R.
name: Robb, G. R. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate the effects of the atomic interaction in the Superradiant Rayleigh scattering from a Bose-Einstein condensate driven by a far-detuned laser beam. We show that for a homogeneous atomic sample the atomic interaction has only a dispersive effect, whereas in the inhomogeneous case it may increase the decay of the matter-wave grating.
description: 12 pages, 4 figures, presented to the XII International Laser Physics Workshop, August 24-29, Hamburg, to be published in Laser Physics