cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Precision measurement of atomic isotope shifts using a two-isotope entangled state
Creators: name: Manovitz, Tom
name: Shaniv, Ravid
name: Shapira, Yotam
name: Ozeri, Roee
name: Akerman, Nitzan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Atomic isotope shifts (ISs) are the isotope-dependent energy differences in the atomic electron energy levels. These shifts serve an important role in atomic and nuclear physics, and particularly in the latter as signatures of nuclear structure. Recently ISs have been suggested as unique probes of beyond Standard Model (SM) physics, under the condition that they be determined significantly more precisely than current state of the art. In this work we present a simple and robust method for measuring ISs with ions in a Paul trap, by taking advantage of Hilbert subspaces that are insensitive to common-mode noise yet sensitive to the IS. Using this method we evaluate the IS of the $5S_{1/2}\leftrightarrow4D_{5/2}$ transition in $^{86}\text{Sr}^+$ and $^{88}\text{Sr}^+$ with a $1.6\times10^{-11}$ relative uncertainty to be 570,264,063.435(9) Hz. Furthermore, we detect a relative difference of $3.46(23)\times10^{-8}$ between the orbital g-factors of the electrons in the $4D_{5/2}$ level of the two isotopes. Our method is relatively easy to implement and is indifferent to element or isotope, paving the way for future tabletop searches for new physics and posing interesting prospects for testing quantum many-body calculations and for the study of nuclear structure.
Dipolar Excitons, Spontaneous Phase Coherence, and Superfluid-Insulator Transition in Bi-layer Quantum Hall Systems at $ν=1$
Creators: name: Yang, Kun
Publisher: name: arXiv
Year: 2001
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The spontaneous interlayer phase coherent (111) state of bi-layer Quantum Hall system at filling factor $ν=1$ may be viewed as a condensate of interlayer particle-hole pairs or excitons. We show in this paper that when the layers are biased in such a way that these excitons are very dilute, they may be viewed as point-like bosons. We calculate the exciton dispersion relation, and show that the exciton-exciton interaction is dominated by the dipole moment they carry. In addition to the phase coherent state, we also find a Wigner Crystal/Glass phase in the presence/absence of disorder which is an insulating state for the excitons. The position of the phase boundary is estimated and the properties of the superfluid-insulator type transition between these two phases is discussed. We also discuss the relation between these "dipolar" excitons and the "dipolar" composite fermions studied in the context of half-filled Landau level.
description: 4 pages with one embedded eps figure
Superconducting gap in the presence of bilayer splitting in underdoped Bi(Pb)2212
Creators: name: Borisenko, S. V.
name: Kordyuk, A. A.
name: Kim, T. K.
name: Legner, S.
name: Nenkov, K. A.
name: Knupfer, M.
name: Golden, M. S.
name: Fink, J.
name: Berger, H.
name: Follath, R.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The clearly resolved bilayer splitting in ARPES spectra of the underdoped Pb-Bi2212 compound rises the question of how the bonding and antibonding sheets of the Fermi surface are gapped in the superconducting state. Here we compare the superconducting gaps for both split components and show that within the experimental uncertainties they are identical. By tuning the relative intensity of the bonding and antibonding bands using different excitation conditions we determine the precise {\bf k}-dependence of the leading edge gap. Significant deviations from the simple cos($k_{x}$)-cos($k_{y}$) gap function for the studied doping level are detected.
description: 5 pages, 4 figures (revtex4)
Trade Policy Reforms in the Cereals Sector of the SADC Region: Implications on Food Security
Creators: name: Mutambatsere, Emelly
name: Mutambatsere, Emelly
Publisher: name: Unknown
Year: 2006
Subjects: International Relations/Trade

description: This study evaluates the welfare implications of tariff reforms in the cereals sector of the SADC region. Applying the global simulation model (GSIM), a multi-country partial equilibrium model, to the cereals industries of thirteen SADC countries, the study computes price and welfare effects of tariff reforms on different economic groups in each country, and evaluates responsiveness to external supply shocks. Results indicate that on net, elimination of intra-regional tariffs is welfare reducing for the region - a robust result as indicated by the sensitivity tests. South Africa emerges as the sole beneficiary of intra-regional tariff elimination, with positive net welfare gains attained through higher producer surplus; whereas the rest of SACU experiences losses in consumer surplus, and the rest of SADC experiences losses in producer surplus. Imports from the rest of the world drop for most net-importer SADC countries, whereas trade with the SADC region generally increases, indicating that both trade diversion and trade creation result from these tariff reforms. The negative net welfare effects suggest that the trade diversion effects exceed the trade creation effects for most of SADC. Larger, positive welfare effects are expected for all of SADC, except South Africa and Zimbabwe, when countries implement indiscriminate reform of MFN tariff rates, although gains come at major costs to regional producers. Imports from both the region and the world are also expected to increase. Tariff reforms also seem to serve the purpose of spreading price and quantity risk, albeit meagerly, from supply shocks generated within the region, making it less intense in countries of origin, and more intense for the rest of SADC.
Citation Networks in High Energy Physics
Creators: name: Lehmann, S.
name: Lautrup, B.
name: Jackson, A. D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Physics and Society (physics.soc-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The citation network constituted by the SPIRES data base is investigated empirically. The probability that a given paper in the SPIRES data base has $k$ citations is well described by simple power laws, $P(k) \propto k^{-α}$, with $α\approx 1.2$ for $k$ less than 50 citations and $α\approx 2.3$ for 50 or more citations. Two models are presented that both represent the data well, one which generates power laws and one which generates a stretched exponential. It is not possible to discriminate between these models on the present empirical basis. A consideration of citation distribution by subfield shows that the citation patterns of high energy physics form a remarkably homogeneous network. Further, we utilize the knowledge of the citation distributions to demonstrate the extreme improbability that the citation records of selected individuals and institutions have been obtained by a random draw on the resulting distribution.
description: 9 pages, 6 figures, 2 tables
Theoretical Aspects of Standard-Model Higgs-Boson Physics at a Future e^+ e^- Linear Collider
Creators: name: Kniehl, Bernd A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Higgs boson is the missing link of the Standard Model of elementary particle physics. We review its decay properties and production mechanisms at a future e^+ e^- linear collider and its e^- e^-, e^+- gamma, and gamma gamma modes, with special emphasis on the influence of quantum corrections. We also discuss how its quantum numbers and couplings can be extracted from the study of appropriate final states.
description: 23 pages (Latex), 15 figures (Postscript), to appear in Int. J. Mod. Phys. A
[Dear María Hernández-Ojeda: We find that your work on the Cuban-Canarian writer]
Creators: name: Maureen, Tobin Stanley
name: Tobin Stanley, Maureen
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Travaux académiques
‘’Espero la noche para soñarte, Revolución’’

description: Destinataire : Hernández-Ojeda, María
description: L’autrice l’informe qu’ils trouvent que son travail sur l’écrivaine Cubaine-Canarienne Nivaria Tejera sera une contribution significative à : ‘’Voices from the Margins: Female Exiles in Twentieth and Twenty-First Century Europe’’ (« Voix des marges : les femmes exilées dans l’Europe des vingtième et vingt-et-unième siècles »). Des détails sont donnés sur le travail et les normes de rédaction.
description: La autora le informa que consideran su trabajo sobre la escritora cubano-canaria Nivaria Tejera será una contribución significativa a: ''Voices from the Margins: Female Exiles in Twentieth and Twenty-First Century Europe'' (''Voces de los márgenes: las mujeres exiliadas en la Europa de los siglos XX y XXI''). Se dan detalles sobre el trabajo y las normas de redacción.
description: Note : Copie d’un courriel de Maureen Tobin Stanley adressé à María Hernández-Ojeda envoyé à Nivaria Tejera par María Hernández-Ojeda, avec la mention manuscrite : « Esta es la carta en la que aceptaron mi propuesta del artículo sobre ‘’Espero la noche’’ » («Voici la lettre dans laquelle ils ont accepté ma proposition d'article sur ''J'attends la nuit'' »). Objet du courriel : Voices from the Margins: e-copy of oficial letter of acceptance.
description: Source: NT-AB-2004-03-15
description: Source: Localisation du document : Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
Propagation of Polar Gravitational Waves in f(R,T) Scenario
Creators: name: Sharif, M.
name: Siddiqa, Aisha
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper investigates the propagation of polar gravitational waves in the spatially flat FRW universe consisting of a perfect fluid in the scenario of $R+2λT$ model of $f(R,T)$ gravity ($λ$ being the model parameter). The spatially flat universe model is perturbed via Regge-Wheeler perturbations inducing polar gravitational waves and the field equations are formulated for both unperturbed as well as perturbed spacetimes. We solve these field equations simultaneously for the perturbation parameters introduced in the metric, matter, and velocity in the radiation, as well as dark energy, dominated phases. It is found that the polar gravitational waves can produce changes in the background matter distribution as well as velocity components in the radiation era similar to general relativity case. Moreover, we have discussed the impact of model parameter on the amplitude of gravitational waves.
description: 18 pages, 1 figures
Robert's Farm of Ideas: 12 -- Try to observe with a microscope what is making an UV/Vis spectroscopy method fail
Creators: name: Giessmann, Robert T.
Publisher: name: Zenodo
Year: 2021
Subjects: UV/Vis spectroscopy
spectroscopy
experimental failure
microscopy
investigate failure
multi-well plates
micro well
microtiter plate

description: In the publication 'Spectral Unmixing-Based Reaction Monitoring of Transformations between Nucleosides and Nucleobases' (doi: https://doi.org/10.1002/cbic.202000204) it says: 'However, on average in approximately 1–2 % of all measurements, we observed increased absorption across the entire spectrum apparent as a distinct baseline shift (Figure 2C). This results in an inability to obtain accurate fits without manual spectral processing (which we choose to explicitly abstain from), as in these cases the baseline can be shifted >0.10 AU. The straightforward solution in this case is remeasurement of the sample in a different well, which generally resolves the problem.' To check this hypothesis, it would be great to check with a microscope the well, and/or pipette the 'failing' solution into a different well and measure again, and/or ... Any further ideas?
description: Development is happening here: https://github.com/roberts-farm-of-ideas/RUNNING_NUMBER_OF_IDEA
Archeorhinotermes Krishna & Grimaldi 2003
Creators: name: Guo, Mingxia
name: Xing, Lida
name: Wang, Bo
name: Zhang, Weiwei
name: Wang, Shuo
name: Shi, Aimin
name: Bai, Ming
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Blattodea
Archeorhinotermitidae
Archeorhinotermes

description: 3.162 Genus Archeorhinotermes Krishna & Grimaldi, 2003
 Archeorhinotermes Krishna & Grimaldi, 2003: 4. Type species: Archeorhinotermes rossi Krishna & Grimaldi, 2003.
description: Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 288, DOI: 10.11865/zs.201715, http://zenodo.org/record/5360313
ІНТЕГРОВАНИЙ ПІДХІД ДО НАВЧАННЯ В ОСВІТНЬОМУ ПРОЦЕСІ
Creators: name: Бойко Євгенія Григорівна
name: Рафальська Олена Олександрівна
name: Юхимович Галина Петрівна
Publisher: name: figshare
Year: 2019
Subjects: Education

description: Наведено основні моменти застосування інтегрованого підходу до навчання в освітньому процесі, а саме: актуальність впровадження інтеграції в навчальний процес; етапи реалізації міжпредметної інтеграції змісту навчання; підвищення ефективності навчання в результаті використання способів інтеграції змісту навчання. Застосування інтегрованого підходу до навчання в освітньому процесі з метою підвищення рівня всерозвитку учня/студента відіграє важливу роль в організації ефективного навчання. Водночас такий підхід дає змогу зменшити перенавантаження учня/студента, а також зменшити затрати на реалізацію процесів навчання. Інтеграція в освітньому процесі дає можливість якісно оновити зміст освіти.
Macroeconomic Impact of Mineral Revenues on General Market Equilibrium and Poverty Alleviation in Sub-Saharan Africa
Creators: name: Slaibi, Ahmad
name: Kyle, Steven C.
name: Slaibi, Ahmad
name: Kyle, Steven C.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Labor and Human Capital
subject: Marketing
subject: FOS: Economics and business
subject: Resource /Energy Economics and Policy

description: A combination of higher oil production as well as higher oil prices is creating oil revenue windfalls for some Sub Saharan African countries. If well managed, these revenues have the potential to reduce poverty and bridge the development gap; if not they could lead to Dutch disease and an increase in income inequality. Our research examines the potential impact of government expenditure on the nontraded sector and its implications on production and wages in other sectors. Not surprisingly our results show that government’s nontraded expenditure leads to a reduction in output of other sectors and a decrease in the wages of these sectors leading to Dutch disease and income disparity. A tariff applied to protect a leading part of the traded sector could in the short term reduce the negative impact and help raise wages in the protectable sector. However, in the medium term, once learning by doing is introduced, the potential benefit of the tariff was minimized. When these oil windfalls diminish in the long term the tariff has a definite negative impact on the protectable sector. We conclude that some Sub Saharan African countries could consider applying a tariff in the short term to reduce the impact of the nontraded expenditure on the traded sector of the economy. This tariff is not recommended for medium or long term and it should be associated with infrastructure investments to support the country’s comparative advantages.
Ground-State of Charged Bosons Confined in a Harmonic Trap
Creators: name: Kim, Yeong E.
name: Zubarev, Alexander L.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study a system composed of N identical charged bosons confined in a harmonic trap. Upper and lower energy bounds are given. It is shown in the large N limit that the ground-state energy is determined within an accuracy of $\pm 8%$ and that the mean field theory provides a reasonable result with relative error of less than 16% for the binding energy .
description: 15 pages
[Distinguida Sr. Correspondo a la suya del 14 de los ctes.]
Creators: name: J., Pina
name: Pina, J.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Publication
Editorial Planeta S.A.

description: Destinataire : Tejera, Nivaria
description: L’auteur l’informe qu’il a transmis son courrier du 14 concernant son roman (non spécifié) au siège de la Maison d’édition, où ils répondront à sa demande.
description: El autor le informa que ha remitido su carta del 14 referente a su novela (no especificada) a la sede de la Editorial, donde responderán a su solicitud.
description: Note : Papier à en-tête : Editorial Planeta S.A. Barcelona.
description: Source: NT-AB-1970-09-21
description: Source: Localisation du document : Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
Unification Scale, Proton Decay, And Manifolds Of G_2 Holonomy
Creators: name: Friedmann, Tamar
name: Witten, Edward
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Models of particle physics based on manifolds of $G_2$ holonomy are in most respects much more complicated than other string-derived models, but as we show here they do have one simplification: threshold corrections to grand unification are particularly simple. We compute these corrections, getting completely explicit results in some simple cases. We estimate the relation between Newton's constant, the GUT scale, and the value of $α_{GUT}$, and explore the implications for proton decay. In the case of proton decay, there is an interesting mechanism which (relative to four-dimensional SUSY GUT's) enhances the gauge boson contribution to $p\toπ^0e^+_L$ compared to other modes such as $p\to π^0e^+_R$ or $p\to π^+\barν_R$. Because of numerical uncertainties, we do not know whether to intepret this as an enhancement of the $p\to π^0e^+_L$ mode or a suppression of the others.
description: 40 pp
Changes in The Size and Output of State Support to Russian Agriculture in 2015 (The Case of The Ural and Siberian Federal Districts)
Creators: name: Kopchenov, Alexei
name: Kopchenov, Alexei
Publisher: name: Unknown
Year: 2016
Subjects: Agricultural and Food Policy
Community/Rural/Urban Development

description: The selected paper presented at the IAMO Samarkand Conference
Additional file 3 of Identification of the anti-breast cancer targets of triterpenoids in Liquidambaris Fructus and the hints for its traditional applications
Creators: name: Qian, Ping
name: Mu, Xiao-Ting
name: Su, Bing
name: Gao, Lu
name: Zhang, Dong-Fang
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 3. The NMR spectrum of LF03, LF04, LF05, LF08, LF09 and LF10.
African socialism : the theory and practice of Kwame Nkrumah
Creators: name: Brophy, Gillian Mary
Publisher: name: The Australian National University
Year: 1972
Subjects: subject: Nkrumah, Kwame, 1909-1972
subject: Socialism Africa
subject: Ghana Politics and government 1957-1979

description: For about a decade, Kwame Nkrumah was independent Ghana’s foremost public figure. Firstly in his capacity as Prime Minister from 1957, when Ghana formally became independent, and then as President of the Republic of Ghana from 1960 to 1966, Nkrumah attracted world wide interest as the leader of the first independent black African nation, and as the flamboyant spokesman for African Unity and African Socialism. Nkrumah’s fall from power, when he was toppled by a military coup on February 24, 1966, released a flood of theories and assertions as to the nature of his government during his decade of power. A substantial proportion of such theories described Nkrumah as exercising dictatorial powers, creating a personality cult around himself, and suppressing any murmur of dissent. Colonel Akwasi Afrifa, a leading figure in the military coup, is one such critic. He asserted that Nkrumah’s rule was characterized by "the terror of one-man rule, and the misery of dictatorship". Nkrumah, having become the symbol of emergent Africa, "built a cult of personality around himself, and ruthlessly used the powers invested in him by his own constitution. He developed a strange love for absolute power"
Micropotamia amazonica
Creators: name: LÖWENBERG-NETO, PETER
name: DE CARVALHO, CLAUDIO J. B.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Muscidae
Micropotamia
Micropotamia amazonica

description: Micropotamia amazonica (Albuquerque & Lopes, 1982)
Distribution. Brazil.
BRAZIL, Amazonas, Balawa-u, 1.8069, -63.7844 (DZUP); Amazonas, Ducke, -2.8833, -59.9667 (Albuquerque & Lopes 1982b); Amazonas, Novo Airão, -2.6214, -60.9442 (DZUP); Roraima, Alto Alegre, -2.9000, -61.5000 (Carvalho 1993b); Roraima, Rio Uraricoara, Ilha de Maracá, 3.4167, -61.6667 (DZUP); Roraima, Serra Pacaraima, 3.5833, -60.5000 (Carvalho 1993b).
description: Published as part of LÖWENBERG-NETO, PETER & DE CARVALHO, CLAUDIO J. B., 2013, Muscidae (Insecta: Diptera) of Latin America and the Caribbean: geographic distribution and check-list by country, pp. 1-147 in Zootaxa 3650 (1) on page 22, DOI: 10.11646/zootaxa.3650.1.1, http://zenodo.org/record/5264631
Ferromagnetic phase transition in topological crystalline insulator thin films: interplay of anomalous Hall angle and magnetic anisotropy
Creators: name: Adhikari, R.
name: Volobuev, V. V.
name: Faina, B.
name: Springholz, G.
name: Bonanni, A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: In magnetic topological phases of matter, the quantum anomalous Hall (QAH) effect is an emergent phenomenon driven by ferromagnetic doping, magnetic proximity effects and strain engineering. The realization of QAH states with multiple dissipationless edge and surface conduction channels defined by a Chern number $\mathcal{C}\geq1$ was foreseen for the ferromagnetically ordered SnTe class of topological crystalline insulators (TCIs). From magnetotransport measurements on Sn$_{1-x}$Mn$_{x}$Te ($0.00\leq{x}\leq{0.08}$)(111) epitaxial thin films grown by molecular beam epitaxy on BaF$_{2}$ substrates, hole mediated ferromagnetism is observed in samples with $x\geq0.06$ and the highest $T_\mathrm{c}\sim7.5\,\mathrm{K}$ is inferred from an anomalous Hall behavior in Sn$_{0.92}$Mn$_{0.08}$Te. The sizable anomalous Hall angle $\sim$0.3 obtained for Sn$_{0.92}$Mn$_{0.08}$Te is one of the greatest reported for magnetic topological materials. The ferromagnetic ordering with perpendicular magnetic anisotropy, complemented by the inception of anomalous Hall effect in the Sn$_{1-x}$Mn$_{x}$Te layers for a thickness commensurate with the decay length of the top and bottom surface states, points at Sn$_{1-x}$Mn$_{x}$Te as a preferential platform for the realization of QAH states in ferromagnetic TCIs.
description: 14 Pages, 7 Figures
Micropotamia cilitibia
Creators: name: LÖWENBERG-NETO, PETER
name: DE CARVALHO, CLAUDIO J. B.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Muscidae
Micropotamia
Micropotamia cilitibia

description: Micropotamia cilitibia (Albuquerque, 1955)
Distribution. Brazil.
 BRAZIL, Mato Grosso do Sul, Salobra, -20.2000, -56.4800 (Albuquerque 1955e); Rio de Janeiro, Itatiaia, - 22.4961, -44.5633 (MNRJ); Rio de Janeiro, Petrópolis, -22.5050, -43.1786 (MNRJ); Rio Grande do Sul, Arroio Grande, -32.2228, -53.1992 (Krüger et al. 2010); Rio Grande do Sul, Quarai, -30.3875, -56.4514 (Carvalho 1993b); Rio Grande do Sul, Quarai, -30.3875, -56.4514 (DZUP).
description: Published as part of LÖWENBERG-NETO, PETER & DE CARVALHO, CLAUDIO J. B., 2013, Muscidae (Insecta: Diptera) of Latin America and the Caribbean: geographic distribution and check-list by country, pp. 1-147 in Zootaxa 3650 (1) on page 22, DOI: 10.11646/zootaxa.3650.1.1, http://zenodo.org/record/5264631
The quantum Heisenberg antiferromagnet on the Sierpinski Gasket: An exact diagonalization study
Creators: name: Voigt, Andreas
name: Richter, Johannes
name: Tomczak, Piotr
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present an exact diagonalization study of the quantum Heisenberg antiferromagnet on the fractal Sierpinski gasket for spin quantum numbers s=1/2,s=1 and s=3/2. Since the fractal dimension of the Sierpinski gasket is between one and two we compare the results with corresponding data of one- and two-dimensional systems. By analyzing the ground-state energy, the low-lying spectrum, the spin-spin correlation and the low-temperature thermodynamics we find arguments, that the Heisenberg antiferromagnet on the Sierpinski gasket is probably disordered not only in the extreme quantum case s=1/2 but also for s=1 and s=3/2. Moreover, in contrast to the one-dimensional chain we do not find a distinct behavior between the half-integer and integer-spin Heisenberg models on the Sierpinski gasket. We conclude that magnetic disorder may appear due to the interplay of frustration and strong quantum fluctuations in this spin system with spatial dimension between one and two.
description: 12 pages (LaTeX), 7 figures, 3 tables, to appear in Physica A
Neutrino and astroparticle physics : Working group report
Creators: name: Mohanty, S.
name: Yajnik, U. A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The contributions made to the Working Group activities on neutrino and astroparticle physics are summarised in this article. The topics discussed were leptogenesis in Left-Right symmetric model, inflationary models in Raman-Sundrum scenarios, ultra high energy cosmic rays and neutrino oscillations in 4 flavour and decaying neutrino models.
description: 11 pages; arXiv copy of contribution to WHEPP-6 proceedings
High-low level support vector regression prediction approach (HL-SVR) for data modeling with input parameters of unequal sample sizes
Creators: name: Shi, Maolin
name: Sun, Wei
name: Song, Xueguan
name: Li, Hongyou
Publisher: name: arXiv
Year: 2019
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: Applications (stat.AP)
subject: Machine Learning (stat.ML)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Support vector regression (SVR) has been widely used to reduce the high computational cost of computer simulation. SVR assumes the input parameters have equal sample sizes, but unequal sample sizes are often encountered in engineering practices. To solve this issue, a new prediction approach based on SVR, namely as high-low-level SVR approach (HL-SVR) is proposed for data modeling of input parameters of unequal sample sizes in this paper. The proposed approach is consisted of low-level SVR models for the input parameters of larger sample sizes and high-level SVR model for the input parameters of smaller sample sizes. For each training point of the input parameters of smaller sample sizes, one low-level SVR model is built based on its corresponding input parameters of larger sample sizes and their responses of interest. The high-level SVR model is built based on the obtained responses from the low-level SVR models and the input parameters of smaller sample sizes. Several numerical examples are used to validate the performance of HL-SVR. The experimental results indicate that HL-SVR can produce more accurate prediction results than conventional SVR. The proposed approach is applied on the stress analysis of dental implant, which the structural parameters have massive samples but the material of implant can only be selected from several Ti and its alloys. The prediction performance of the proposed approach is much better than the conventional SVR. The proposed approach can be used for the design, optimization and analysis of engineering systems with input parameters of unequal sample sizes.
Archeorhinotermes rossi Krishna & Grimaldi 2003
Creators: name: Guo, Mingxia
name: Xing, Lida
name: Wang, Bo
name: Zhang, Weiwei
name: Wang, Shuo
name: Shi, Aimin
name: Bai, Ming
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Blattodea
Archeorhinotermitidae
Archeorhinotermes
Archeorhinotermes rossi

description: 221) Archeorhinotermes rossi Krishna & Grimaldi, 2003
 Archeorhinotermes rossi Krishna & Grimaldi, 2003: 4.
Type specimen(s). H: NHM In. 20160 (NHML).
description: Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 288, DOI: 10.11865/zs.201715, http://zenodo.org/record/5360313
[Querida niña Lourdes: es cierto que había dicho de mandarte]
Creators: name: Nivaria, Tejera
name: Tejera, Nivaria
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Littérature
Poésie

description: Destinataire : Gil, Lourdes
description: L’autrice évoque l’envoi de son poème ‘’La Gruta’’ et développe sur le sujet. Elle évoque également : un événement à Madrid (non spécifié), la réception d’un petit livre de Suède (non spécifié), et la perte du numéro de téléphone de la destinataire.
description: La autora menciona el envío de su poema ''La Gruta'' y desarrolla sobre el tema. También menciona: un evento en Madrid (no especificado), la recepción de un pequeño libro de Suecia (no especificado) y la pérdida del número de teléfono de la destinataria.
description: Source: NT-AB-1995-02-00
description: Source: Localisation du document : Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
The glassy phase of Gallager codes
Creators: name: Montanari, Andrea
Publisher: name: arXiv
Year: 2001
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Gallager codes are the best error-correcting codes to-date. In this paper we study them by using the tools of statistical mechanics. The corresponding statistical mechanics model is a spin model on a sparse random graph. The model can be solved by elementary methods (i.e. without replicas) in a large connectivity limit. For low enough temperatures it presents a completely frozen glassy phase (q_{EA}=1). The same scenario is shown to hold for finite connectivities. In this case we adopt the replica approach and exhibit a one-step replica symmetry breaking order parameter. We argue that our ansatz yields the exact solution of the model. This allows us to determine the whole phase diagram and to understand the performances of Gallager codes.
description: 27 pages, 8 eps figures
Teaching anthropogenic global climate change (AGCC) using climate models
Creators: name: Bush, Drew
name: Sieber, Renee
name: Chandler, Mark A.
name: Sohl, Linda E.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Geography educators have long taught anthropogenic global climate change (AGCC) using geospatial data, visualizations, analysis tools and models. We examined the attitudes of teachers at secondary schools, research institutions, colleges and universities tasked with teaching using one such technology. We designed a seventeen-question online survey about the National Aeronautics and Space Administration (NASA) Goddard Institute for Space Studies (GISS) Educational Global Climate Model (EdGCM) that was completed by 115 respondents. Researchers and educators at more than 150 research and educational institutions internationally have utilized EdGCM since 2005. There are numerous reasons why teaching AGCC with a global climate model (GCM) is attractive, and this study examined the successes and challenges teachers confront when implementing such educational technologies. Those in our sample provided insight into what methods and approaches proved effective in reinforcing conceptual understandings of the geographic processes that shape the Earth system. Our findings show educators are willing to use complex scientific models in their classroom but prefer those that enable genuine student research. We also found that more easily accessible online technologies pose fewer technical challenges and often are preferred by teachers to more complex climate education technologies.
Ophyra albuquerquei Lopes 1985
Creators: name: LÖWENBERG-NETO, PETER
name: DE CARVALHO, CLAUDIO J. B.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Muscidae
Ophyra
Ophyra albuquerquei

description: Ophyra albuquerquei Lopes, 1985
Distribution. Brazil.
 BRAZIL, Minas Gerais, Serra da Caraça, -19.9594, -43.4153 (DZUP); Paraná, Curitiba, -25.4278, -49.2731 (Moura et al. 1997, DZUP); Rio de Janeiro, Nova Friburgo, -22.2819, -42.5311 (Lopes 1985); Rio de Janeiro, Paracambi, -22.6000, -43.7125 (Espindola 2006); Rio de Janeiro, Petrópolis, -22.5050, -43.1786 (Lopes 1985); Rio Grande do Sul, Pelotas, -31.7719, -52.3425 (Costa et al. 2000); São Paulo, Engenheiro Lafevre, -22.7394, -45.5914 (DZUP).
description: Published as part of LÖWENBERG-NETO, PETER & DE CARVALHO, CLAUDIO J. B., 2013, Muscidae (Insecta: Diptera) of Latin America and the Caribbean: geographic distribution and check-list by country, pp. 1-147 in Zootaxa 3650 (1) on page 23, DOI: 10.11646/zootaxa.3650.1.1, http://zenodo.org/record/5264631
Calorimetric and transport investigations of CePd_{2+x}Ge_{2-x} (x=0 and 0.02) up to 22 GPa
Creators: name: Wilhelm, H.
name: Jaccard, D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The influence of pressure on the magnetically ordered CePd_{2.02}Ge_{1.98} has been investigated by a combined measurement of electrical resistivity, $ρ(T)$, and ac-calorimetry, C(T), for temperatures in the range 0.3 K
description: 9 pages, 7 figures
[Estimada Nivaria: Ha sido un placer y una sorpresa]
Creators: name: Roger, Salas
name: Salas, Roger
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Amitié

description: Destinataire : Tejera, Nivaria
description: L’auteur exprime son plaisir de l’avoir rencontrer lors d’une intervention (non spécifiée), et espère avoir l’occasion de la revoir.
description: El autor expresa su placer de haberla conocido durante una intervención (no especificada), y espera tener la oportunidad de volver a verla.
description: Note : Carte avec son enveloppe.
description: Source: NT-AB-0000-052
description: Source: Localisation du document : Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
description: created: inconnue
Spectral and optical properties of Ag$_3$Au(Se$_2$,Te$_2$) and dark matter detection
Creators: name: Sánchez-Martínez, Miguel-Ángel
name: Robredo, Iñigo
name: Bidauzarraga, Arkaitz
name: Bergara, Aitor
name: de Juan, Fernando
name: Grushin, Adolfo G.
name: Vergniory, Maia G.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work we study the electronic structure of Ag${}_3$AuSe${}_2$ and Ag${}_3$AuTe${}_2$, two chiral insulators whose gap can be tuned through small changes in the lattice parameter by applying hydrostatic pressure or choosing different growth protocols. Based on first principles calculations we compute their band structure for different values of the lattice parameters and show that while Ag${}_3$AuSe${}_2$ retains its direct narrow gap at the $Γ$ point, Ag${}_3$AuTe${}_2$ can turn into a metal. Focusing on Ag${}_3$AuSe${}_2$ we derive a low energy model around $Γ$ using group theory, which we use to calculate the optical conductivity for different values of the lattice constant. We discuss our results in the context of detection of light dark matter particles, which have masses of the order of a $k$eV, and conclude that Ag${}_3$AuSe${}_2$ satisfies three important requirements for a suitable detector: small Fermi velocities, $m$eV band gap and low photon screening. Our work motivates the growth of high-quality and large samples of Ag${}_3$AuSe${}_2$ to be used as target materials in dark matter detectors.
description: 13 pages, 4 figures, fixed typos, submitted version
Pollen sedimentation in relation to the Quaternary vegetation history of the Snowy Mountains of New South Wales
Creators: name: Raine, James Ian
Publisher: name: The Australian National University
Year: 1974
Subjects: pollen analysis
Holocene
Pleistocene
vegetation history
Australia
pollen budget
pollen morphology

description: Pollen influx into Blue Lake in the alpine area of the Snowy Mountains of southeastern Australia was measured by pollen traps, snow and stream water samples and lake sediment traps. Pollen deposition in a nearby forested area was also investigated. Pollen deposition rates were calculated for a pair of cores from the lake, yielding a record over the last 13000 years, supplementary material from the nearby Twynam Cirque extending the sequence to 20000 years B.P. Possible causes of distortions in the pollen diagrams arising from differential pollen deposition and sediment redeposition are regarded as not significant. Vegetation was absent from the area before 17000 B.P., when snowpatch and feldmark communities appeared. Further amelioration occurred between 13000 and 17000 years B.P., after which conditions appeared to remain the same until 8700 years B.P., when a great increase in total pollen deposition rate was associated with rise of the treeline to its present position, and further development of the alpine vegetation. Forest of moister aspect than the present day prevailed from 7700 to 6500 years B.P., after which relative wetness declined to a minimum at about 3800 years B.P. Slight increase in available moisture has occurred since 1500 years B.P.
МЕТОДИ ТА МОДЕЛІ ПОШКОДЖЕННЯ АВТОМАТИЗОВАНОЇ СИСТЕМИ ДІАГНОСТИКИ ТЕХНІЧНОГО СТАНУ ОБ`ЄКТІВ БУДІВНИЦТВА
Creators: name: Терентьєв Олександр Олександрович
name: Київська Катерина Іванівна
name: Горбатюк Євгеній Володимирович
name: Доля Олена Вікторівна
name: Бородиня Віталій Віталійович
name: Азенко Артем Віталійович
Publisher: name: figshare
Year: 2019
Subjects: subject: 120201 Building Construction Management and Project Planning
subject: FOS: Civil engineering

description: Елементи та конструкції будівель відрізняються різним ступенем складності і невизначеності технічного стану, а також значною кількістю чинників, що призводять до їх фізичного зносу, деформацій, дефектів та пошкоджень. Інформація про дефекти будівлі має бути представлена у вигляді результатів обстеження та діагностики. Визначення зв’язку між дефектами та причинами їх появи, прогнозування наслідків цих дефектів на подальший технічний стан об’єкта є багатофакторним завданням, тому потребує детального вивчення. Дефекти та пошкодження будівельних об’єктів є наслідком негативних факторів, що існують на всіх етапах життєвого циклу, у зв’язку з чим виникає завдання забезпечення їх експлуатаційної придатності шляхом отримання інформації щодо технічного стану, діагностування та прийняття рішень з відновлення. Оцінка технічного стану будівель є одна з найбільш складних задач на ринку інтелектуальних систем оцінки і прийняття рішень, складність якої полягає у великій кількості чинників, що впливають на оцінку, які досить складно формалізувати. Висвітлено питання, що пов’язані з методами обстеження та аналізу причин виявлення пошкоджень діагностики технічного стану будівель і споруд. Набула подальшого розвитку інформаційна технологія системи підтримки прийняття рішень, яка базується на потужних щодо інтелектуалізації аналітичних засобах, які дають змогу експертам приймати більш правдоподібні оцінки та управлінські рішення.
Quantum Spin Nematic States in Bose-Einstein Condensates
Creators: name: Zhou, Fei
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We review some recent results on discrete symmetries and topological order in spinor Bose-Einstein condensates (BECs) of $^{23}Na$. For spin one bosons with two-body scatterings dominated by a total spin equal to two channel, the BECs are in quantum spin nematic states at a low density limit. We study spin correlations in condensates at different limits and analyze hidde$ symmetries using a non-perturbative approach developed recently. We further more investigate the influence of hidden $Z_2$ symmetries and U(1) quantum orders in symmetry partially retored states, particularly the effects on topological excitations.
description: 30 pages, 13 figs included. to appear in Int. Jour. Mod. Phys. A
Comparative Analysis of Wheat Supply Chains in Armenia and Uzbekistan
Creators: name: Akbarov, Adkham
name: Bobojonov, Ihtiyor
name: Teuber, Ramona
name: Perekhozhuk, Oleksandr
name: Glauben, Thomas
name: Akbarov, Adkham
name: Bobojonov, Ihtiyor
name: Teuber, Ramona
name: Perekhozhuk, Oleksandr
name: Glauben, Thomas
Publisher: name: Unknown
Year: 2016
Subjects: Crop Production/Industries

description: The selected paper presented at the IAMO Samarkand Conference
Kachinitermes Engel 2007
Creators: name: Guo, Mingxia
name: Xing, Lida
name: Wang, Bo
name: Zhang, Weiwei
name: Wang, Shuo
name: Shi, Aimin
name: Bai, Ming
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Blattodea
Kalotermitidae
Kachinitermes

description: 3.165 Genus Kachinitermes Engel et al., 2007
 Kachinitermes Engel et al., 2007: 26. Type species: Hodotermes tristis Cockerell, 1917.
description: Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 289, DOI: 10.11865/zs.201715, http://zenodo.org/record/5360313
$σ$ Meson In $J/Ψ$ Decays
Creators: name: Huo, Wujun
name: Zhang, Xinmin
name: Huang, Tao
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recently BES at BEPC found evidence for the existence of the $σ$ meson in the process of $J/Ψ\to σω\toππω$. In this paper we firstly discuss the relevant coupling $g_{σππ}$ and show that the linear $σ$ model gives rise to a reasonable description of the $σ$ decay into $π$'s, then we calculate the coupling constant $g^{th}_{J/Ψσω}$ by using the perturbative QCD technique and the light-cone wave functions of the $σ$ and $ω$ mesons. The results show that the theoretical value of $g^{th}_{J/Ψσω}$ is within the range of experimental value $g_{J/Ψσω}$.
description: 9 pages, 2 figures,accepted by PRD
Single Transverse Spin Asymmetry in $p^\uparrow p \to πX$ and $ep^\uparrow \to πX$
Creators: name: Koike, Yuji
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Single transverse spin asymmetry for the pion production in pp and ep collisions is studied in the framework of collinear factorization. The soft-gluon pole contributions with twist-3 distribution and fragmentation functions are identified and its characteristic features are discussed.
description: 4 pages in LaTex. Talk presented at PANIC2002, Sep. 30 - Oct. 4, 2002, Osaka, Japan
Electronic transport in films of colloidal CdSe nanocrystals
Creators: name: Morgan, Nicole Y.
name: Leatherdale, C. A.
name: Drndic, M.
name: Vitasovic, Mirna
name: Kastner, Marc A.
name: Bawendi, Moungi
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present results for electronic transport measurements on large three-dimensional arrays of CdSe nanocrystals. In response to a step in the applied voltage, we observe a power-law decay of the current over five orders of magnitude in time. Furthermore, we observe no steady-state dark current for fields up to 10^6 V/cm and times as long as 2x10^4 seconds. Although the power-law form of the decay is quite general, there are quantitative variations with temperature, applied field, sample history, and the material parameters of the array. Despite evidence that the charge injected into the film during the measurement causes the decay of current, we find field-scaling of the current at all times. The observation of extremely long-lived current transients suggests the importance of long-range Coulomb interactions between charges on different nanocrystals.
description: 11 pages, 10 figures
[Mi querida Nivaria. Hoy me duelen todos los huesos]
Creators: name: Isel, Rivero
name: Rivero, Isel
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Amitié
Vie personnelle

description: Destinataire : Tejera, Nivaria
description: L’autrice évoque : des problèmes de santé, son désir d’aller travailler en Europe, un poste à l’ONU à Madrid, et ses sentiments.
description: La autora menciona: problemas de salud, su deseo de ir a trabajar a Europa, un puesto en la ONU en Madrid y sus sentimientos.
description: Note : Lettre rédigée adressé à Kigali, au Ruanda. Le cachet de la poste sur l’enveloppe indique que la lettre a été postée adressé à Nairobi, au Kenya.
description: Source: NT-AB-1996-02-00
description: Source: Localisation du document : Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
[Eduardo: sé que estás ahí, en la misma casa y que sigues pasando]
Creators: name: Nivaria, Tejera
name: Tejera, Nivaria
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Vie personnelle

description: Destinataire : Indéterminé
description: L’autrice évoque des souvenirs, leur amitié ancienne, et le prie de lui écrire.
description: La autora evoca recuerdos, su antigua amistad y le pide que le escriba.
description: Note : Lettre adressée à un certain ‘’Eduardo’’.
description: Source: NT-AB-0000-036
description: Source: Localisation du document : Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
description: created: inconnue