cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Horizontal-Branch Models and the Second-Parameter Effect. IV. The Case of M3 and Palomar 3
Creators: name: Catelan, M.
name: Ferraro, F. R.
name: Rood, R. T.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a detailed analysis of the "second-parameter pair" of globular clusters M3 (NGC 5272) and Palomar 3. Our main results can be summarized as follows: i) The horizontal-branch (HB) morphology of M3 is significantly bluer in its inner regions (observed with the Hubble Space Telescope) than in the cluster outskirts (observed from the ground), i.e., M3 has an internal second parameter. Most plausibly the mass loss on the red giant branch (RGB) has been more efficient in the inner than in the outer regions of the cluster. ii) The dispersion in mass of the Pal 3 HB is found to be very small -- consistent with zero -- and we argue that this is unlikely to be due to a statistical fluctuation. It is this small mass dispersion that leads to the most apparent difference in the HB morphologies of M3 and Pal 3. iii) The relative HB types of M3 and Pal 3, as measured by mean colors or parameters involving the number of blue, variable, and red HB stars, can easily be accounted for by a fairly small difference in age between these clusters, of order 0.5-1 Gyr -- which is in good agreement with the relative age measurement, based on the clusters' turnoffs, by VandenBerg (2000).
description: 20 pages, 12 figures, emulateapj5 style. The Astrophysical Journal, in press. Figs. 1, 6, 9, 10 are in png format. The preprint (postscript format) with full resolution (embedded) figures is available from http://www.astro.virginia.edu/~mc6vz
A Closer Look at Covering Number Bounds for Gaussian Kernels
Creators: name: Steinwart, Ingo
name: Fischer, Simon
Publisher: name: arXiv
Year: 2019
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We establish some new bounds on the log-covering numbers of (anisotropic) Gaussian reproducing kernel Hilbert spaces. Unlike previous results in this direction we focus on small explicit constants and their dependency on crucial parameters such as the kernel bandwidth and the size and dimension of the underlying space.
description: accepted manuscript in J. Complexity
Thermodynamics of Cyclic Quantum Amplifiers
Creators: name: Menczel, Paul
name: Flindt, Christian
name: Brandner, Kay
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a generic model for a cyclic quantum heat engine that makes it possible to coherently amplify a periodically modulated input signal without the need to couple the working medium to multiple reservoirs at the same time. Instead, we suggest an operation principle that is based on the spontaneous creation of population inversion in incomplete relaxation processes induced by periodic temperature variations. Focusing on Lindblad dynamics and systems with equally spaced energy levels, e.g. qubits or quantum harmonic oscillators, we derive a general working criterion for such cyclic quantum amplifiers. This criterion defines a class of candidates for suitable working media and applies to arbitrary control protocols. For the minimal case of a cyclic three-level amplifier, we show that our criterion is tight and explore the conditions for optimal performance.
description: 8 pages, 4 figures
Three-dimensional manifolds
Creators: name: Epstein, David Alper
Publisher: name: Apollo - University of Cambridge Repository
Year: 1960

description: In the post-war years, the theory of 3-dimensional manifolds has developed tremendously. On the one hand, Bing and Moise have proved that 3-manifolds can be triangulated, and that the Hauptvermutung (that any two triangulations of the same space are combinatorially equivalent) is true for 3-manifolds. On the other hand, Papakyriakopoulos has proved Dehn's Lemma, and, using ideas of Papakyriakopoulos, Whitehead has proved the Sphere Theorem. As a result of this concerted attack from two different directions, the theory of 3-manifolds has become an extremely interesting and fruitful field of study. It seems as though we are well on the way to solving the two main problems in the field:- the Poincaré Conjecture, and the classification of closed 3-manifolds. In this thesis, some theorems connected with 3-manifolds are proved. The most important theorem is the Projective Plane Theorem (6.1), in which it is proved that elements of the second homotopy group of a 3-manifold can be represented, in a certain sense, by 2-spheres or projective planes in the manifold. The Projective Plane Theorem is, perhaps, an important tool in the problem of classifying non-orientable 3-manifolds. The entire thesis depends on the Projective Plane Theorem, except for Chapters I and III. In Chapter I, the linking of n-spheres in (n+2)-space is dealt with. In Chapter Ill, non-orientable compact 3-manifolds, with finite fundamental groups are considered, with the aim of proving that there is essentially only one such 3-manifold. The reader is warned that a different definition of a 3-manifold is adopted in each chapter. This is in the interest of brevity and clarity. The author hopes that no confusion will arise. The definition appropriate in each chapter is given in the introduction to that chapter. The exact hypotheses about the 3-manifold, required for each theorem, are given just before the statement of the theorem. The follov/ing conventions are used throughout the thesis:- i) "M" denotes a 3-manifold; ii ) "X ̃" denotes some covering space of the topological space X; iii ) "G" denotes a group; iV) "O" denotes the group with only one element, or the unit element of a group which is definitely abelian, or the integer zero; v) "l" denotes the unit element of a (possibly) non-abelian group, or the integer one; vi ) "Homotopic to zero" means "homotopic to the constant map "; vii) '"The zero map" of one group into another group denotes the map which sends all elements into the trivial element. The author would like to thank Dr. E. C. Zeeman most warmly for his constant help and encouragement during the writing of this work. He could not have hoped for a better teacher. The author has found Dr. Zeeman's comments, suggestions and keen interest in his work invaluable and inspiring. The author has also had many very interesting and useful conversations with Dr. J. F. Adams, to whom he is most grateful.
Binary black holes in the pair-instability mass gap
Creators: name: Di Carlo, Ugo N.
name: Mapelli, Michela
name: Bouffanais, Yann
name: Giacobbo, Nicola
name: Santoliquido, Filippo
name: Bressan, Sandro
name: Spera, Mario
name: Haardt, Francesco
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Pair instability (PI) and pulsational PI prevent the formation of black holes (BHs) with mass $\gtrsim{}60$ M$_\odot$ from single star evolution. Here, we investigate the possibility that BHs with mass in the PI gap form via stellar mergers and multiple stellar mergers, facilitated by dynamical encounters in young star clusters. We analyze $10^4$ simulations, run with the direct N-body code nbody6++gpu coupled with the population synthesis code MOBSE. We find that up to $\sim{}6$~% of all simulated BHs have mass in the PI gap, depending on progenitor's metallicity. This formation channel is strongly suppressed in metal-rich (Z = 0.02) star clusters, because of stellar winds. BHs with mass in the PI gap are initially single BHs but can efficiently acquire companions through dynamical exchanges. We find that $\sim{}$21%, 10% and 0.5% of all binary BHs have at least one component in the PI mass gap at metallicity Z = 0.0002, 0.002 and 0.02, respectively. Based on the evolution of the cosmic star formation rate and metallicity, and under the assumption that all stars form in young star clusters, we predict that $\sim{}5$~% of all binary BH mergers detectable by advanced LIGO and Virgo at their design sensitivity have at least one component in the PI mass gap.
description: 7 pages, 3 figures, 2 tables, MNRAS, in press
The Influence of Stellar Wind Variability on Measurements of Interstellar O VI Along Sightlines to Early-Type Stars
Creators: name: Lehner, N.
name: Fullerton, A. W.
name: Sembach, K. R.
name: Massa, D. L.
name: Jenkins, E. B
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A primary goal of the FUSE mission is to understand the origin of the O VI ion in the interstellar medium of the Galaxy and the Magellanic Clouds. Along sightlines to OB-type stars, these interstellar components are usually blended with O VI stellar wind profiles, which frequently vary in shape. In order to assess the effects of this time-dependent blending on measurements of the interstellar O VI lines, we have undertaken a mini-survey of repeated observations toward OB-type stars in the Galaxy and the Large Magellanic Cloud. These sparse time series, which consist of 2-3 observations separated by intervals ranging from a few days to several months, show that wind variability occurs commonly in O VI (about 60% of a sample of 50 stars), as indeed it does in other resonance lines. However, in the interstellar O VI $λ$1032 region, the O VI $λ$1038 wind varies only in $\sim$30% of the cases. By examining cases exhibiting large amplitude variations, we conclude that stellar-wind variability {\em generally} introduces negligible uncertainty for single interstellar O VI components along Galactic lines of sight, but can result in substantial errors in measurements of broader components or blends of components like those typically observed toward stars in the Large Magellanic Cloud. Due to possible contamination by discrete absorption components in the stellar O VI line, stars with terminal velocities greater than or equal to the doublet separation (1654 km/s) should be treated with care.
description: Accepted for publication in the Astrophysical Journal Letter
Leptohyphes nigripunctus Traver 1943
Creators: name: Baumgardner, D. E.
name: Mccafferty, W. P.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Ephemeroptera
Leptohyphidae
Leptohyphes
Leptohyphes nigripunctus

description: Leptohyphes nigripunctus Traver
 Leptohyphes nigripunctum Traver, 1943:82; Traver, 1958; McCafferty, 1985; Molineri, 2003.
 Leptohyphes nigripunctus Traver (spell).
 Diagnosis: Very little is known concerning this species. The whitish pronotum, grayish head, dark gray mesosternum, and yellow femora evidently distinguishes it from other known adults in Central America (Traver, 1958).
 Description: Male Adult: Length. Body, 4.0 mm; forewings, 4.0 mm; hind wings, 1.0 mm. General coloration: pronotum yellowish white, meso- and metanotum reddish-brown; abdomen yellowish-white with reddish brown. Head: dorsally grey, ventrally white; antennae white. Thorax: pronotum yellowish-white, shaded with pale grey, lateral margins with blackish shading; meso- and metanotum bright reddish-brown with grey shading medially and on pleura. Legs: femora yellowish; tibia and tarsus grayish-black. Forewing: membrane whitish; veins whitish, except C, Sc, and R grayish basally; no figure or description of the venation has been published. Hind wing: membrane pale; two longitudinal veins present. Abdomen. Segments two through six yellowish-white, basal and apical segments light reddish-brown; each nota with pale grey band medially. Genitalia: reported as the peterseni type (see “Discussion” below), which has forceps threesegmented, penes with basal half fused, distal parts divergent, “Y” shaped. Larva: Unknown.
 Distribution: Known from Guerrero, Mexico (McCafferty, 1985) and Antimano, Venezuela.
 Discussion: Described by Traver (1943) from a single male subimago from Antimano, Venezuela (located near the capital, Caracas). The genitalia were described as the peterseni type (“Y” shaped, typical for all known male adults of the genus), but lost while being prepared for mounting. The sketch of the hind wing given by Traver (fig. 3, Traver, 1943) is also typical of male Leptohyphes. The whitish pronotum distinguished it from other known adults in Central America (Traver, 1958). McCafferty (1985) reported it from Guerrero, Mexico, its only other documented record. Molineri (2003) briefly mentioned this species in his revision of the South American Leptohyphes, but did not attempt to diagnosis it from other species. Despite attempts to located the type specimen, it cannot currently be found. The brief description given above is taken from Traver’s (1943) original description.
 Type material examined: None.
 Other material examined: None.
description: Published as part of Baumgardner, D. E. & Mccafferty, W. P., 2010, Revision of the genus Leptohyphes Eaton (Ephemeroptera: Leptohyphidae) in North and Central America, pp. 1-33 in Zootaxa 2360 (1) on pages 21-22, DOI: 10.11646/zootaxa.2360.1.1, http://zenodo.org/record/5305019
MOESM7 of Transcriptome analysis of the differential effect of the NADPH oxidase gene RbohB in Phaseolus vulgaris roots following Rhizobium tropici and Rhizophagus irregularis inoculation
Creators: name: Fonseca-García, Citlali
name: Zayas, Alejandra
name: Montiel, Jesús
name: Noreide Nava
name: Sánchez, Federico
name: Quinto, Carmen
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Plant Biology

description: Additional file 7: Figure S4. Functional annotation of the DEGs in rhizobia-inoculated and mycorrhized PvRbohB-RNAi roots, relative to the control. The bars show the percentages of upregulated (a, c, e) and downregulated (b, d, f) DEGs annotated with GO terms of the functional categories of biological processes (a–b), molecular functions (c–d), and cellular components (e–f). A cutoff threshold of Log2FC ≥ 1.5 and P-adj/FDR ≤ 0.05 was used, and GO terms were assigned using a GO-Slim analysis against the UniProt database in Blast2GO.
Realising the right to food in India: Insights from the Midday Meal Scheme in Rajasthan
Creators: name: Whittaker, Lana
Publisher: name: Apollo - University of Cambridge Repository
Year: 2018
Subjects: Right to food
Food Security
India
Midday Meal Scheme

description: This thesis examines the everyday realisation of rights in India’s school-feeding programme, the Midday Meal Scheme. The commitment to realising the right to food in India is well-established. In 2001, a petition to the Supreme Court and subsequent orders made existing food-based schemes (including the Midday Meal Scheme) a legal entitlement under a right to food. These schemes then became the core components of the National Food Security Act in 2013. In consequence, eligible children in India have a right to a MDM that adheres to specific guidelines and have a broader right to food. Despite these commitments to rights, the extent to which India’s food-based social protection schemes reflect a rights-based approach has not, hitherto, been explored. Indeed, although the importance of state-led, rights-based social protection schemes to address food insecurity is now widely recognised, the relationship between these means and ends has been insufficiently explored. In this context, drawing on nearly one year of mixed-methods research in the Indian state of Rajasthan, I examine the extent to which India’s Midday Meal Scheme adheres to a rights-based approach to realising food security. To do so, I examine three components of a rights-based system in the context of the scheme: rights-holders and their entitlements; duty-bearers and their duties; and the mechanisms through which duty-bearers can be held to account for the non-fulfilment of their obligations. I draw on detailed field research in two districts to show that, in its present form, the scheme is limited from the perspective of rights. Not all those in need are necessarily included in the scheme; the food that rights- holders receive often does not meet their needs, duty-bearers fail to adequately fulfil their duties; and accountability mechanisms fail to hold them accountable. Consequently, rights-holders often do not receive their entitlements and the right to food remains unfulfilled. Overall, I show that the realisation of rights to depends on the capabilities of rights-holders to realise their rights and on the capacity and motivation of duty-bearers to fulfil their duties.
description: ESRC 1+3 Studentship
Pairing instability on a Luttinger surface: A non-Fermi liquid to superconductor transition and its Sachdev-Ye-Kitaev dual
Creators: name: Setty, Chandan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Superconductivity results from an instability of the Fermi surface -- contour of \textit{poles} of the single particle propagator -- to an infinitesimally small attraction between electrons. Here, we instead discuss the analogous problem on a model \textit{Luttinger} surface, or contour of \textit{zeros} of the Green function. At zero temperature ($β\rightarrow \infty$) and a critical interaction strength ($u_{c\infty}$) characterized by the residue of self-energy pole, we find that the pair susceptibility diverges leading to a superconducting instability. We evaluate the pair fluctuation partition function and find that the spectral density in the normal state has an interaction-driven, power-law $\frac{1}{\sqrtω}$ type, van-Hove singularity (vHS) indicating non-Fermi liquid (NFL) physics. Crucially, in the strong coupling limit ($βu \gg 1$), the leading order fluctuation free energy terms in the normal state of this NFL-SC transition resemble the equivalent $\left(O(1)\right)$ terms of the Sachdev-Ye-Kitaev (SYK) model. This free energy contribution takes a simple form $-βF = βu_{c\infty} - γ~\text{ln}\left(βu_{c \infty}\right)$ where $γ$ is a constant equal to $\frac{1}{2}$. Weak impurity scattering ($τ\gg β^{-1}$) leaves the low-energy spectral density unaffected, but leads to an interaction-driven enhancement of superconductivity. Our results shed light on the role played by order-parameter fluctuations in providing the key missing link between Mott physics and strongly coupled toy-models exhibiting gravity duals.
description: 16 pages, 6 figures including Appendices
Shivni et al_IJSTEMEd_Student products
Creators: name: Bergan-Roller, Heather
name: Shupei Yuan
Publisher: name: figshare
Year: 2021
Subjects: subject: 50203 Environmental Education and Extension
subject: FOS: Earth and related environmental sciences
subject: Environmental Science
subject: Education
subject: 130103 Higher Education
subject: FOS: Educational sciences

description: Undergraduate students in an environmental science course were assigned a project to communicate science with a general, non-scientific audience. This site shares the de-identified products made by students. These projects were analyzed as evidence of the students' science communication skills, according to the EEES framework. The corresponding manuscript is published in the International Journal of STEM Education. Names provided here are pseudonyms.
The Low-lying Dirac Eigenmodes from Domain Wall Fermions
Creators: name: Liu, Guofeng
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We calculate the low-lying eigenvalues and eigenvectors of the hermitian domain wall Dirac operator on various gauge backgrounds by Ritz minimization. The mass dependence of these eigenvalues is studied to extract the physical 4 dimensional $λ$, whose spectral density is related to $$ through the Banks-Casher relation, and $δm$, which represents the effects of the residual chiral symmetry breaking in domain wall formalism on a per eigenmode basis. The topological structure of the underlying gauge field is examined by measuring the $Γ_5$ matrix elements between the low-lying eigenmodes.
description: Lattice2001(confinement)
Data from: Effects of fungicide and herbicide on a non-target butterfly performance
Creators: name: Riihimäki, Ulla
name: de Koning, Mathijs
name: Kaila, Lotta
name: Saastamoinen, Marjo
Publisher: name: Zenodo
Year: 2025
Subjects: Pesticides
Ecotoxicology
Agroecology
Plant-insect interactions

description: Agricultural intensification is one of the key drivers of biodiversity loss. Intensified agriculture is often associated with increased use of pesticides and the use of pesticides could negatively impact also non-target species living in the vicinity of agricultural lands. We exposed larvae of the Glanville fritillary butterfly (Melitaea cinxia) to a short-term exposure of a herbicide, a fungicide, or a mix of the two via their larval host plant (Plantago lanceolata). Survival and performance of the larvae was recorded and potential carry-over effects on adult butterfly fitness traits were assessed under semi-natural conditions in an outdoor enclosure. Our results showed significantly increased mortality in the larvae exposed to the fungicide and the fungicide-herbicide mix treatments, both of which also impacted adult morphology. Adult female butterflies exposed to the mix of fungicide and herbicide treatment during their development also had lower lifetime reproductive success than the other treatment groups, suggesting that the combined chemical load had stronger carry-over effects into adulthood. Our results demonstrate clear negative impacts of a commonly used fungicide on a non-target butterfly species. The combined effect of two pesticides, while less lethal to larvae directly, seem to have a more profound carry-over impact on fitness of adult female butterflies. The mechanisms underlying the effects of a fungicide alone and in interaction with the herbicide, as well as the relatively minor impacts of herbicide alone on the specialist insect warrant further investigation in the role of pesticides in natural populations.
description: Funding provided by: Novo Nordisk FoundationROR ID: https://ror.org/04txyc737Award Number: NNF20OC0060118
description: This data includes information on the Glanville fritillary butterfly larvae that were used in the experiment. Larvae were collected from the wild in September 2023 and used for the experiment in Spring 2024. The data collected during the experiment is in this dataset.
title: Préface_Abraham Bosse et la société française au dix-septième siècle
Creators: name: AmateurS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021

description: Préface
description: ID_PARA_00941
Dynamics of E. coli genome and cytosol under antibiotics
Creators: name: Wlodarski, Michal
Publisher: name: Apollo - University of Cambridge Repository
Year: 2018
Subjects: chromosomal dynamics
cytosol dynamics
antibiotics
E.coli

description: In light of an urgent need for improved antimicrobial diagnostics and therapeutics, understanding bacterial behaviour, and bacterial responses to treatments in particular, is one of the key objectives of modern medical research. While the molecular mode of action of antibiotics is usually well known, their effect on the cell at a "systems" level (on the regulatory networks, metabolism, etc.) is only beginning to be quantitatively understood. We address some of these response phenotypes in Escherichia coli testing different antibiotic classes and growth conditions. We study the short (<15 s) time-scale fluctuation dynamics of fluorescently-tagged chromosomal loci and cytosolic aggregates, which report for the state of locus ”compaction” and the levels of macromolecular crowding of the cytosol, respectively. We improve the precision of those measurements developing a novel data treatment procedure and discover that sub-lethal doses of ciprofloxacin, rifampicin, and vancomycin as well as hyperosmotic shock conditions cause small but consistent changes (unique to each treatment agent) to the physical organisation of chromosomal Ori2 and Ter3 loci and the cytosol. We reveal, among other findings, strong correlations between the effects in different parts of the chromosome and between the chromosome and cytosol. In addition, we complement the marker dynamics work with single-cell level gene expression measurements during sub-lethal translation inhibition. Specifically, we compare responses to tetracycline and chloramphenicol from constitutive and ribosomal promoters in Ori3 and Ter3 chromosomal positions over long (7 h) treatment times in exponentially growing bacteria. We reveal, for the first time, the kinetics of cellular resource allocation and provide novel insights on globally regulated transcription, relevant to the three-component proteome partitioning model, gene-length dependent effects of the processivity of translation, and ”reversibility” of ribosome-binding antibiotics. In addition, we discover a strong correlation between the timing of responses from promoters in the Ori3 and Ter3 positions, and a small but consistent difference in the response magnitude between the two positions.
description: BBSRC
The virial expansion of attractively interacting Fermi gases in 1D, 2D, and 3D, up to fifth order
Creators: name: Hou, Y.
name: Drut, J. E.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The virial expansion characterizes the high-temperature approach to the quantum-classical crossover in any quantum many-body system. Here, we calculate the virial coefficients up to the fifth-order of Fermi gases in 1D, 2D, and 3D, with attractive contact interactions, as relevant for a variety of applications in atomic and nuclear physics. To that end, we discretize the imaginary-time direction and calculate the relevant canonical partition functions. In coarse discretizations, we obtain analytic results featuring relationships between the interaction-induced changes $Δb_3$, $Δb_4$, and $Δb_5$ as functions of $Δb_2$, the latter being exactly known in many cases by virtue of the Beth-Uhlenbeck formula. Using automated-algebra methods, we push our calculations to progressively finer discretizations and extrapolate to the continuous-time limit. We find excellent agreement for $Δb_3$ with previous calculations in all dimensions and we formulate predictions for $Δb_4$ and $Δb_5$ in 1D and 2D. We also provide, for a range of couplings,the subspace contributions $Δb_{31}$, $Δb_{22}$, $Δb_{41}$, and $Δb_{32}$, which determine the equation of state and static response of polarized systems at high temperature. As a performance check, we compare the density equation of state and Tan contact with quantum Monte Carlo calculations, diagrammatic approaches, and experimental data where available. Finally, we apply Padé and Padé-Borel resummation methods to extend the usefulness of the virial coefficients to approach and in some cases go beyond the unit-fugacity point.
description: 15 pages, 14 figures; greatly expanded version including subspace contributions, extrapolations to the continuous-time limit, and applications in 1D, 2D, and 3D using resummation techniques
Carnet nº 18, commencé à Canton (p. 19)
Creators: name: Péraire, Lucien
name: CNRS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2023

description: created: 9-1-1931
Pade/renormalization-group improvement of inclusive semileptonic B decay rates
Creators: name: Ahmady, M. R.
name: Chishtie, F. A.
name: Elias, V.
name: Fariborz, A. H.
name: McKeon, D. G. C.
name: Sherry, T. N.
name: Steele, T. G.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Renormalization Group (RG) and optimized Pade-approximant methods are used to estimate the three-loop perturbative contributions to the inclusive semileptonic b \to u and b \to c decay rates. It is noted that the \bar{MS} scheme works favorably in the b \to u case whereas the pole mass scheme shows better convergence in the b \to c case. Upon the inclusion of the estimated three-loop contribution, we find the full perturbative decay rate to be 192π^3Γ(b\to u\barν_\ell\ell^-)/(G_F^2| V_{ub}|^2) = 2065 \pm 290{\rm GeV^5} and 192π^3Γ(b\to c\ell^-\barν_\ell)/(G_F^2|V_{cb}|^2)= 992 \pm 198 {\rm GeV^5}, respectively. The errors are inclusive of theoretical uncertainties and non-perturbative effects. Ultimately, these perturbative contributions reduce the theoretical uncertainty in the extraction of the CKM matrix elements |V_{ub}| and |V_{cb}| from their respective measured inclusive semileptonic branching ratio(s).
description: 3 pages, latex using espcrc2.sty. Write-up of talk given at BEACH 2002, UBC, Vancouver
Commodity Price Comovement: The Case of Cotton
Creators: name: Janzen, Joseph P.
name: Smith, Aaron D.
name: Janzen, Joseph P.
name: Smith, Aaron D.
Publisher: name: Unknown
Year: 2012
Subjects: Agricultural marketing

description: During the commodity price boom and bust of 2007-2008, cotton futures prices rose and fell dramatically in spite of high levels of inventory. At the same time, correlation between cotton and other commodity prices reached historically high levels. These two observations underlie concerns that cotton prices during this period were poor signals of cotton market fundamentals and that the cotton market was ’taken along for a ride’ with other commodities. The apparent coincidence of extreme price movement across a broad range of commodities requires an explanation. Were cotton prices driven by the same set of macroeconomic factors as the other commodities? Did cotton markets suffer from supply disruptions at the same time that the other commodities faced disruptions? What was the role of futures market speculators and the rise of commodity index trading? br br Economists have been writing about excessive or unexplained comovement among commodity prices since at least Pindyck and Rotemberg (1990). Using this literature as a starting point, we identify potential explanations for commodity price comovement. Past studies have accounted for macroeconomic activity, and cotton-specific supply and demand changes. Tang and Xiong (2010) suggest that speculative pressure due to broad-based commodity index trading may also cause comovement among commodity prices. We develop and estimate a structural vector autoregression model to test the relative contribution of these effects to observed cotton prices. We find that supply shocks to current net supply, the 2007-2008 spike was caused by higher demand for inventories.
Optimal investment in an energy storage system
Creators: name: Castellini, Marta
name: D'Alpaos, Chiara
name: Fontini, Fulvio
name: Moretto, Michele
Publisher: name: Unknown
Year: 2025
Subjects: subject: Climate Change
subject: Dairy Farming
subject: Environmental Economics and Policy
subject: Resource /Energy Economics and Policy
subject: Sustainability
subject: Renewable Energy Sources
subject: Photo-voltaic
subject: Battery Storage

description: Renewable energy production plays a crucial role in the energy transition. However, many renewable energy sources (RES) are intermittent, and there is often a mismatch between energy production and consumption, which can be partially solved by storage. In this paper, we investigate the investment decision in a photovoltaic (PV) power plant coupled with a Battery Energy Storage System (BESS), namely an Energy Storage System (ESS). We aim to investigate the relationship between the net present value (NPV) of the investment and the technical implications related to the maximum amount of energy to be stored while also accounting for the impact of energy prices. In our setting, the BESS is connected to the national power grid and the PV plant. Energy can be produced, purchased from the grid, stored, self-consumed, and fed into the grid. PV production and energy consumption loads evolve stochastically over time. In addition, as BESS are costly, energy stored has an opportunity cost, which depends on the prices of energy purchased from the grid and energy fed in and sold to the grid, respectively. However, BESS can significantly contribute to increase ESS managerial flexibility and, in turn, ESS value. In detail, we investigate the optimal BESS size that minimizes ESS net operating costs. We also provide insights on ESS optimal management strategy. Our results show that ESS net operating costs are relatively small. They reduce for increasing selling prices of energy, whereas they increase for increasing volatility of the stock of energy stored in the battery.
MOESM2 of gRNA validation for wheat genome editing with the CRISPR-Cas9 system
Creators: name: Taj Arndell
name: Niharika Sharma
name: Langridge, Peter
name: Baumann, Ute
name: Watson-Haigh, Nathan
name: Whitford, Ryan
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Plant Biology
subject: 60506 Virology

description: Additional file 2. Flow cytometry of protoplasts co-transformed with pUbi-Cas9-rbcS and pUbi-YFP-rbcS. Protoplasts were diluted to different concentrations (50,000–500,000 cells per 200 μL) for transformation, and either incubated with the DNA for 10 min prior to the addition of PEG or not incubated with the DNA (PEG added immediately to DNA/protoplast mixture). The percent of protoplasts expressing YFP is indicated. MFI, mean fluorescence intensity of YFP-expressing protoplasts.
Hesselink normal forms of unipotent elements in some representations of classical groups in characteristic two
Creators: name: Korhonen, Mikko
Publisher: name: arXiv
Year: 2019
Subjects: subject: Group Theory (math.GR)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20G05

description: Let $G$ be a simple linear algebraic group over an algebraically closed field $K$ of characteristic two. Any non-trivial self-dual irreducible $K[G]$-module $W$ admits a non-degenerate $G$-invariant alternating bilinear form, thus giving a representation $f: G \rightarrow \operatorname{Sp}(W)$. In the case where $G = \operatorname{SL}_n(K)$ and $W$ has highest weight $\varpi_1 + \varpi_{n-1}$, and in the case where $G = \operatorname{Sp}_{2n}(K)$ and $W$ has highest weight $\varpi_2$, we determine for every unipotent element $u \in G$ the conjugacy class of $f(u)$ in $\operatorname{Sp}(W)$. As a part of this result, we describe the conjugacy classes of unipotent elements of $\operatorname{Sp}(V_1) \otimes \operatorname{Sp}(V_2)$ in $\operatorname{Sp}(V_1 \otimes V_2)$.
description: to appear in J. Algebra
Fertility preservation options at cancer diagnosis; classifying use and decision-making in the United States
Creators: name: Pathak, Sarita
name: Voigt, Paxton
name: Bellon, Margot
name: Vadaparampil, Susan T.
name: Quinn, Gwendolyn P.
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Incidence rates for cancer among adolescent and young adults (AYA) have increased 30% since 1970. Declines in mortality underscore the importance of discussing fertility preservation (FP) options prior to receiving gonadotoxic treatments. National guidelines outline FP options including oocyte (OC), embryo (EC), and ovarian tissue cryopreservation (OTC) for female AYA patients. Significant progress has led to changes in FP practices, initially limited to EC. Subsequently, OC was deemed non-experimental in 2013, followed by OTC in 2020. Despite these advancements and guideline recommendations, the availability and utilization of FP services vary. Rapid review methodologies were employed to classify trends in female AYAs utilization of FP cryopreservation options following guideline updates. FP options reviewed include OC, EC, and OTC. Additionally, the review examined if aspects of the decision-making process relevant to FP were present. Ten articles met inclusion criteria. Results suggest that the declassification of OTC has not necessarily increased its use and OC and EC appear to be most frequently used. The factors associated with decision making appear to have remained consistent with financial constraints having the most impact, followed by partner status and concerns about recurrence.
Study of Proto Strange Stars (PSS) in Temperature and Density Dependent Quark Mass Model
Creators: name: Gupta, V. K.
name: Gupta, Asha
name: Singh, S.
name: Anand, J. D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the study of the mass-radius (M-R) relation and the radial oscillations of proto strange stars. For the quark matter we have employed the well known density dependent quark mass model and its very recent modification, the temperature and density dependent quark mass model. We find that the maximum mass the star can support increases significantly with the temperature of the star in this model which implies that transition to a black hole at the early stage of formation of the star is inhibited. As for the neutrinos, we find, contrary to the expectation that the M-R and oscillation frequencies are almost independent of the neutrino chemical potentials.
description: LaTex2e file with four postscript figures
MOESM6 of Transcriptome analysis of the differential effect of the NADPH oxidase gene RbohB in Phaseolus vulgaris roots following Rhizobium tropici and Rhizophagus irregularis inoculation
Creators: name: Fonseca-García, Citlali
name: Zayas, Alejandra
name: Montiel, Jesús
name: Noreide Nava
name: Sánchez, Federico
name: Quinto, Carmen
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Plant Biology

description: Additional file 6: Figure S3. Functional annotation of the DEGs in the PvRbohB-RNAi roots in nonsymbiotic conditions of P. vulgaris. Functional annotation of the upregulated and downregulated DEGs annotated with GO terms of the functional categories of biological processes (a), molecular functions (b), and cellular components (c). A cutoff threshold of Log2FC ≥ 1.5 and P-adj/FDR ≤ 0.05 was used, and GO terms were assigned using a GO-Slim analysis of the UniProt database in Blast2GO.
Charge Freezing in Zig-zag Chain Cuprates PrBa2Cu4O8 Observed by Cu Nuclear Quadrupole Resonance
Creators: name: Fujiyama, S.
name: Takigawa, M.
name: Horii, S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report nuclear quadrupole resonance (NQR) studies on the chain Cu sites of PrBa$_{2}$Cu$_{4}$O$_{8}$, a quasi-one-dimensional conductor with a nearly quarter-filled band. The nuclear spin-lattice relaxation rate $1/T_{1}$ shows a pronounced peak near 100 K caused by fluctuations of electric field gradient (EFG). Similar peak was observed for the spin-echo decay rate $1/T_{2}$, however, at a different temperature near 50 K. These results and broadening of the NQR spectrum at low temperatures indicate that slow charge fluctuations of either electronic or ionic origin freeze gradually at low temperatures.
description: 5 pages, 4 figures
Image-based material characterization of complex microarchitectured additively manufactured structures
Creators: name: Korshunova, N.
name: Jomo, J.
name: Lékó, G.
name: Reznik, D.
name: Balázs, P.
name: Kollmannsberger, S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: Significant developments in the field of additive manufacturing (AM) allowed the fabrication of complex microarchitectured components with varying porosity across different scales. However, due to the high complexity of this process, the final parts can exhibit significant variations in the nominal geometry. Computer tomographic images of 3D printed components provide extensive information about these microstructural variations, such as process-induced porosity, surface roughness, and other undesired morphological discrepancies. Yet, techniques to incorporate these imperfect AM geometries into the numerical material characterization analysis are computationally demanding. In this contribution, an efficient image-to-material-characterization framework using the high-order parallel Finite Cell Method is proposed. In this way, a flexible non-geometry-conforming discretization facilitates mesh generation for very complex microstructures at hand and allows a direct analysis of the images stemming from CT-scans. Numerical examples including a comparison to the experiments illustrate the potential of the proposed framework in the field of additive manufacturing product simulation.
Missbrauch einer anderen Welt– Germanische Mythologie und Rechtsextremismus. Tagung vom 22.- 23. November 2013 in Worms und der KZ-Gedenkstätte Osthofen
Creators: name: Binkle, Jonas
Publisher: name: theologie.geschichte
Year: 2014

description: theologie.geschichte, Bd. 9 (2014)
Systematic review and meta-analyses of adipokine levels in hypothyroidism: a role for retinol-binding protein 4
Creators: name: Torres, Emiliana Maria
name: Tellechea, Mariana Lorena
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Hypothyroidism (HT) is associated with numerous well-characterized comorbidities and established biomarkers for subclinical atherosclerosis which may lead to an elevated risk of cardiovascular disease; however, the precise molecular mechanism underlying these pathological features remains elusive. Increased levels of adipokines may have adverse effects on multiple atherosclerotic risk factors in HT. Different studies have evaluated the association between HT and adipokines with conflicting results. A systematic review and meta-analyses were conducted to provide an overview of adipokine levels in HT. The last literature search was done in February 2024 for studies analyzing traditional and novel circulating adipokines levels (excluding resistin and irisin) in patients with HT. The standard mean differences and 95% confidence intervals (CI) were calculated using random-effect models except if no heterogeneity was found. HT was not associated with leptin, adiponectin, omentin-1, visfatin, or apelin levels; however, increased retinol-binding protein 4 (RPB4) levels were found in both overall and subclinical HT (p-values = 0.0002 and 0.004 respectively). While pooled analysis suggested a role for RBP4 in hypothyroid patients, associations do not imply cause–effect relationships, and therefore the potential clinical implications of these findings should await further mechanistic studies. The protocol has been registered in the Prospective Register of Systematic Reviews (PROSPERO) under the identification number CRD42024537717.
Four Years Monitoring of Blazar PKS 2155-304 with BeppoSAX: Probing the Dynamics of the Jet
Creators: name: Zhang, Y. H.
name: Treves, A.
name: Celotti, A.
name: Chiappetti, L.
name: Fossati, G.
name: Ghisellini, G.
name: Maraschi, L.
name: Pian, E.
name: Tagliaferri, G.
name: Tavecchio, F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: PKS 2155--304 is one of the brightest blazars in the X-ray band. It was repeatedly monitored with BeppoSax during three long campaigns of about 2 days each in November of 1996, 1997 and 1999. The source underwent different states of intensity and was clearly variable with successive flares detected. This paper presents temporal and spectral analysis to study the X-ray variability trends for a blazar. The rich phenomenology is interpreted in the context of a model where relativistic electrons are accelerated through internal shocks taking place in the jets. The most important parameter turns out to be the initial time interval between the two shells ejected from the central engine to produce the flare, which may determine the structure of the shock and in turn the physical quantities of the emitting region to reproduce the observed trends of the X-ray variability (abridged).
description: 51 pages, 11 figures, ApJ in press, Scheduled for the v572 no2, June 20, 2002 issue
Covid-19 Real-time Tracker
Creators: name: Zhou, Nate
Publisher: name: Zenodo
Year: 2021
Subjects: Covid

description: COVID-19 is one of the most devastating disease in human history due to its high transmissibility, wide affected age group, and its lethality to human life. The virus has already affected the whole world, leading to an ongoing pandemic. The purpose of this project was to have a real-time COVID-19 China cases tracker that employed dynamic data mining, data processing, data persistence, data visualization technique so that people can have more understanding on the effect of COVID-19 virus using real-time information access regarding the pandemic data from Chinese CDC. The Tracker focused on web crawling from Tencent and Baidu official webpage, then data processing and storing in a relational SQL database for interactively manipulating and cleaning data. Finally, different statistical models and machine learning techniques are used to try to see the future trend of COVID-19, and they are demonstrated via data visualization depending on any modern web browser.
Search for non-helical disc dynamos in simulations
Creators: name: Arlt, R.
name: Brandenburg, A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The possibility of non-helical large scale dynamo action is investigated using three-dimensional simulations of global accretion discs as well as idealized local simulations without rotation and only shear. Particular emphasis is placed on a certain correlation between vorticity and azimuthal velocity gradient which has been predicted to drive large scale dynamo action, independent of the presence or absence of kinetic helicity. In the global disc simulations two types of behaviours are found: those which do show this type of velocity correlation and those which do not. The former ones are typically also the cases where the resistivity is larger. The latter ones show signs typical of dynamo action based on the usual helicity effect. In the idealized simulations without rotation and just shear the above correlation is found to be particularly strong. In both cases there is, as expected, a systematic flux of magnetic helicity through the midplane. However, very little helicity flux leaves the domain through the top and bottom boundaries. The idealized simulations reveal that much of this systematic flux comes from the rotational component of the helicity flux and does not contribute to its divergence.
description: 14 pages, 17 figures, 5 tables, submitted to Astron. & Astrophys