bluuebunny/crossref_metadata_2025_split huggingface dataset:
bo and illite crystallinity studies of K-white micas in rocks from forearc basin and accretionary complex sequences, Southern New England Fold Belt, N.S.W., Australia. Etude de bo et de la cristallinité de l'illite des micas blancs potassiques dans des roches du bassin d'avant-arc et des séquences du complexe d'accrétion dans la zone de plissement du Sud de la Nouvelle-Angleterre (Nouvelle-Galles du Sud, Australie)
Authors: Offler Robin , Hand Martin , Bale Richard 
Published: June 2018

En étudiant la zone de plissement située dans le Sud de la Nouvelle-Angleterre (Nouvelle-Galles du Sud, Australie), nous avons démontré, par des études de b₀ des micas blancs potassiques, que la Zone de Tamworth et le Complexe des Plateaux contiennent des séquences qui manifestent des empreintes métamorphiques distinctes : les micas blancs des sédiments du bassin d'avant-arc (forearc basin) de la Zone de Tamworth montrent des conditions de basse pression, tandis que ceux des séquences du complexe d'accrétion dans le Complexe des Plateaux ont des caractères de pression intermédiaire. Les résultats sont en accord avec les modèles de tectonique des plaques proposés pour la Zone de Plissement du Sud de Nouvelle-Angleterre.
A partir d'analyses de la cristallinité de l'illite, il est établi que des roches caractéristiques des zones diagénétique à anchimétamorphique inférieure se dont développées dans la succession d'avant-arc tandis que celles des zones diagénétique à épimétamorphique se situent dans le complexe d'accrétion, avec un gradient de cristallinité croissant du Sud au Nord. Par ailleurs, le système de faille de Peel n'est pas une zone majeure de chevauchement.
Les déséquilibres radioactifs (U-Ra) de l'uranium du gisement de phosphate des Ganntour (Maroc occidental). The radioactive disequilibria (U-Ra) of the uranium from the phosphatic deposit of the Ganntour (Western Morocco)
Authors: Jeanmaire Jean-Paul 
Published: June 2018

Dans le cadre de l'étude de la répartition de l'uranium dans le gisement de phosphate des Ganntour, l'état d'équilibre relatif uranium-équivalent radium (U/eRa) a été mesuré par spectrométrie gamma multicanaux, sur 1 10 échantillons phosphatés d'origine et de faciès divers.
Les déséquilibres les plus fréquents et les plus importants (U/eRa compris entre 0,6 et 2,2, hormis une valeur exceptionnelle de 4,5) se rencontrent à moins de 10 m de profondeur. Ils peuvent s'expliquer par un lessivage météorique de l'U dans la partie tout à fait superficielle, suivi de son dépôt sous la zone lessivée, le radium restant fixé. Ce mécanisme récent aboutit à un faible enrichissement en U.
En profondeur, les déséquilibres rares et modestes (compris entre 0,8 et 1 ,3) attestent cependant de l'existence de mouvements mineurs d'uranium. Les déséquilibres favorables à l'U de la zone sèche semblent confirmer un faible apport de cet élément essentiellement depuis la surface, tandis qu'à l'intérieur de la zone noyée, s'il y a de légers mouvements d'U, départs et apports se compenseraient globalement.
Nouvelles données d'enthalpie libre de formation (ΔG°f,298) des cryptomélanes synthétiques : conséquences paragénétiques. / New determination of ΔG°f,298 of synthetic cryptomelane : paragenetic consequence
Authors: Hypolito Raphael , Giovanoli Rudolf , Valarelli José Vincente , Netto Silvania Maria 
Published: June 2018

New determination of ΔG°(f.298) of synthetic cryptomelane : paragenetic consequence
Five cryptomelanes with different compositions were synthetized by oxidation (pure O₂ gas) of Mn²⁺ sulfuric solutions, and by addition of KOH, at 25°C. The following Gibbs free energies of formation were calculated from the experiments :
Analytical formula — AG°f298 cryp. (kJmol"1)
K0,77 MnI !1o47 MnIV7 45О i60,41H20 4 592,99 ± 1,22
K0 60 Mn 111 , 05 Mn IV7 об О i6 0,45H20 4 628,99 ± 1,21
К 0 56 Mn 111 j 23 Mn 1 v6 94 0 16 0,33H20 4 630,12 ± 1,20
К o,44 Mn 1,1 1,69 Mn ,V6 62 0 ,6 0,43H20 4 645,06 ±1,21
К0[зо Mn ni2'i8 Mn ]\29 О i6 0,53H20 4 679,58 ± 1,21
The ΔG°(f.298) cryp seems to be a function of n the number of Mn(O₂) in the cell, based on 16 oxygen as follows : ΔG°(f.298) cryp = 70,34 МпO₂ — 5.1 18,60 (kJmol"1). Correlations among Mn4+,Mn5+and K+ permitted the definition of two ideal cryptomelanes :one with a maximum of K* and Mn4* (K0,9oMnIV7 7gO 16,01) and the other with a maximum of Mn³⁺ but free of K⁺ (MnUI3 31 Mnlv5 5301б1оз)-Thermodynamic fields of stability between these two minerals with Mn²⁺ in solution were constructed in an Eh — pH diagram. Paragenetic considerations on the coexistence of cryptomelane and/or nsutite, pyrolusite and/or other minerals were obtained.
Modélisation du transport transitoire de solutés en milieu poreux : les modèles linéaires. / Modeling the non-equilibrium transport of linearly interacting solutes in porous media
Authors: Sardin Michel 
Published: June 2018

Modeling the non-equilibrium transport of linearly interacting solutes in porous media
The transport of linearly interacting solutes in porous media is investigated with the help of residence time distributions, transfert functions, methods of system dynamics, and time-moment analyses. The classical one-dimensional convection-dispersion equation is extended to two-region (mobile-immobile water) transport by including diffusional mass transfert limitations characteristic of aggregated porous media. The two region model is further revised by incorporating the effects of multiple retention sites (in parallel or in series), multiple porosity levels, and arbitrary but steady flow fields. It is shown that different physical situations can be represented by a relatively small number of transfert functions containing only two types of parameters : distribution coefficients to account for equilibrium properties, and characteristic times reflecting kinetic processes. Relevant kinetic processes include convective transport, hydrodynamic dispersion, adsorption-desorption and physical or chemical mass transfert limitation. One shows so that the transfert time distribution is an extremely usefull tool for explaining some unexpected experimental results in the solute transport literature.
Diagnostic and prognostic modeling of the terrestrial biosphere with remotely sensed measurements. / Modélisation paramétrique et prédictive de la biosphère terrestre par des observations satellitaires
Authors: Maisongrande Philippe , Dedieu Gérard , Ruimy Anne , Kergoat Laurent , Saugier Bernard , Berthelot Béatrice , Ciais Philippe 
Published: June 2018

This paper presents a recapitulative of the modeling studies we have developed to estimate carbon fluxes of the terrestrial biosphere, with various integrations of satellite observations to drive, test, or improve models. The diagnostic model aimed at estimating Net Primary Productivity (NPP) benefits from remotely sensed vegetation index (NDVJ) to monitor the fraction of absorbed photosynthetically active radiation (f(PAR)) with high space and time sampling. Applied to a pluriannual period, this method showed its ability to witness the response of vegetation to major interannual climatic events such as El Nino. Satellite f(PAR) estimates were also used to assess the outputs of a NPP process model that predicts Leaf Area Index (LAI). More complex approaches, based on the assimilation of satellite measurements within process models, are being developed in order to adjust some key model parameters.
The balance between heterotrophic respiration (R(h)) and NPP determines the carbon Net Ecosystem Productivity (NEP ), i.e. the net carbon budget of ecosystems, which is the main variable of interest for global carbon cycle study. We describe an approach that combines satellite estimates of NPP with atmospheric CO₂ concentration and isotopic composition time series to adjust simple R(h) models. The method allowed to derive zonal distribution of the Q₁₀ parameter, that presents similar trends with values found in the literature.
Besides the obvious advantage of remote sensing for monitoring the seasonal evolution of vegetation, this result proves the ability of satellite data to diagnose a realistic zonal trend of seasonal and annual NPP.
A scenario generator for land use changes for use in global carbon cycle models like the HRBM. / Un générateur de scénario de changement d'utilisation des terres applicable dans des modèles de cycle global comme le HRBM
Authors: Ahamer Gilbert , Esser Gerd 
Published: June 2018

Un générateur de scénario de changement d'utilisation des terres applicable dans des modèles de cycle global du carbone comme le HRBM
Afin d'identifier sur le long terme les éléments moteurs du développement des zones agricoles et de la Productivité Agricole Relative (PAR ou RAP ) à l'échelle mondiale, une base de données socio-économiques a été conçue. Cette base est constituée de séries temporelles de 880 variables pour 149 pays. Cet outil analytique permet une multitude de combinaisons de différentes variables à l'échelle mondiale, régionale, ou par pays. Il devient alors possible de calculer des régressions entre variables et d'évaluer des tendances et des marges d'évolution.
A l'échelle mondiale, le système de production de nourriture est envisagé du point de vue de l'offre et de la demande. Côté demande, cette organisation est perçue comme un enchaînement de sous-systèmes décrits par des paramètres d'intensité. L'analyse des tendances résultantes révèle que les changements de PAR et des superficies cultivées dépendent essentiellement du marché de l'alimentation, des circuits de distribution, des habitudes et des rations alimentaires. Côté offre, les facteurs clés sont l'intensité du travail, le degré de mécanisation et d'apport d'engrais. Cette analyse est effectuée à l'échelle des pays pour être ensuite agrégée au niveau continental ou mondial afin de faciliter la lecture des graphiques. Pour chaque zone, 19 scénarios d'évaluation des superficies nécessaires à la production alimentaire future sont proposés et les orientations de recherches à suivre sont identifiées.
Physical Roles of Interstellar-origin Pickup Ions at Heliospheric Termination Shock. II. Impact of the Front Nonstationary on the Energy Partition and Particle Velocity Distribution
Authors: Lembège Bertrand , Yang Zhongwei 
Published: June 2018

Abstract
The impact of the nonstationarity of the heliospheric termination shock in the presence of pickup ions (PUIs) on the energy partition between different plasma components is analyzed self-consistently by using a one-dimensional particle-in-cell simulation code. Solar wind ions (SWIs) and PUIs are introduced as Maxwellian and shell distributions, respectively. For a fixed time, (a) with a percentage of 25% PUIs, a large part of the downstream thermal pressure is carried by reflected PUIs, in agreement with previous hybrid simulations; (b) the total downstream distribution includes three main components: (i) a low-energy component dominated by directly transmitted (DT) SWIs, (ii) a high-energy component dominated by reflected PUIs, and (iii) an intermediate-energy component dominated by reflected SWIs and DT PUIs. Moreover, results show that the front nonstationarity (self-reformation) persists even in presence of 25% PUIs, and has some impacts on both SWIs and PUIs: (a) the rate of reflected ions suffers some time fluctuations for both SWIs and PUIs; (b) the relative percentage of downstream thermal pressure transfered to PUIs and SWIs also suffers some time fluctuations, but depends on the relative distance from the front; (c) the three components within the total downstream heliosheath distribution persist in time, but the contribution of the ion subpopulations to the low- and intermediate-energy components are redistributed by the front nonstationarity. Our results allow clarifying the respective roles of SWIs and PUIs as a viable production source of energetic neutral atoms and are compared with previous results.
Extreme [O iii] Emitters at z ∼ 0.5
Authors: Li Zhihui , Malkan Matthew A. 
Published: June 2018

Abstract
We have found a sample of extreme emission-line galaxies (EELGs) with strong [O iii]λ5007 emission at z ∼ 0.5. Using broadband photometric selection and requiring small uncertainties in photometry, we searched the 14th Data Release of the Sloan Digital Sky Survey (SDSS) and found 2658 candidates with strong i-band excess (i – z ≤ r – i – 0.7). We further obtained 649 SDSS spectra of these objects, and visually identified 22 [O iii] emitters lying at 0.40 < z < 0.63. Having constructed their ultraviolet–infrared spectral energy distributions, we found that they have fairly blue r – W2 and red W1 – W4 colors, indicative of strong, warm dust emission. Their rest-frame [O iii]λ5007 equivalent widths are mostly 200–600 Å, and their high [O iii]λ5007/Hβ ratios put them at the boundary of star-forming galaxies and active galactic nuclei on line ratio classification diagrams. The typical E(B–V) and electron temperature of [O iii] emitters are ∼0.1–0.3 mag and ∼104 K, respectively. The lowest metallicity of our [O iii] emitters with S/N[O iii]λ4363 > 3 is 12 + log(O/H) =

, with a median value of

. Our [O iii] emitters exhibit remarkably high line luminosity—18/22 have L
[O iii]λ5007 > 5 × 1042 erg s−1 and 5/22 have L
[O iii]λ5007 > 1043 erg s−1. Their estimated volume number density at z ∼ 0.5 is ∼2 × 10−8 Mpc−3, with L
[O iii]λ5007 down to ∼3 × 1042 erg s−1. The cumulative number distribution of EELGs across different redshifts is indicative of a strong redshift evolution at the bright end of the [O iii] luminosity function.
Galactic Forces Rule the Dynamics of Milky Way Dwarf Galaxies
Authors: Hammer Francois , Yang Yanbin , Arenou Frederic , Babusiaux Carine , Wang Jianling , Puech Mathieu , Flores Hector 
Published: June 2018

Abstract
Dwarf galaxies populating the Galactic halo are assumed to host the largest fractions of dark matter, as calculated from their velocity dispersions. Their major axes are preferentially aligned with the Vast Polar Structure (VPOS) that is perpendicular to the Galactic disk, and we find their velocity gradients aligned as well. This finding results in a probability of random occurrence for the VPOS as low as ∼10−5. It suggests that tidal forces exerted by the Milky Way are distorting dwarf galaxies. Here we demonstrate on the basis of the impulse approximation that the Galactic gravitational acceleration induces the dwarf line-of-sight velocity dispersion, which is also evidenced by strong dependences between both quantities. Since this result is valid for any dwarf mass value, it implies that dark matter estimates in Milky Way dwarfs cannot be deduced from the product of their radius to the square of their line-of-sight velocity dispersion. This questions the high dark matter fractions reported for these evanescent systems, and the universally adopted total-to-stellar mass relationship in the dwarf regime. It suggests that many dwarfs are at their first passage and are dissolving into the Galactic halo. This gives rise to a promising method to estimate the Milky Way total mass profile at large distances.
The Australasian Virtual Herbarium (AVH) and the Changing Role of Herbaria
Authors: Klazenga Niels 
Published: June 2018

Australia’s Virtual Herbarium (AVH) was created in 2001 and developed between 2001 and 2006 with the databasing of the label data of specimens from the Australian Commonwealth, state and territory herbaria. The success of AVH ultimately led to funding for the Atlas of Living Australia (ALA) and in October 2012 AVH was re-launched as part of the ALA infrastructure (http://avh.chah.org.au). Since 2012, some university herbaria have also joined AVH and in June 2017 the New Zealand Virtual Herbarium (NZVH) was integrated, giving rise to the Australasian Virtual Herbarium. The AVH currently holds almost 6.3 million records from 23 Australian and New Zealand herbaria and comprises over 80 per cent of the vouchered occurrence records of Australian plants, algae and fungi in ALA.
While no longer at the forefront of the digitisation wave, having been around for so long, AVH can provide valuable insights into how and to what extent herbarium data is used and into the benefits of digitisation for herbaria and natural history collections. Six years of download statistics shows an ever-increasing use of AVH data and a widening of the user base. A far greater proportion of downloaded records is ostensibly used for new uses like ecological research and conservation, than for the traditional uses of herbarium specimen data, systematics and collections management. The last few years have also seen an increase in the use of AVH data in education. Over the years many research articles based on AVH data have been written, mostly at the interface between ecology and systematics, i.e. biogeography and conservation science.
With the increase of the types of uses for herbarium data, it becomes important, also for the herbaria themselves, to consider the fitness for purpose of AVH data for uses other than the purpose for which it was collected. It has become apparent that the uncertainty of the latitudes and longitude provided with herbarium specimens is often too great for use in ecological research or conservation and there is a bias in collection density at the bioregion level, which is likely to be more severe at smaller spatial scales. Also, while the demand for vouchered occurrence records is increasing, we have seen a steady decrease in the intake of new specimens by Australian herbaria since the 1980s.
This presentation will cover how Australian herbaria use AVH, how other users use AVH and what being part of AVH has meant to Australian herbaria.
Developing a GIS of Hazards for Canadian Cultural Institutions
Authors: Strang Tom 
Published: June 2018

The Canadian Conservation Institute (CCI) has developed a Geographic Information System (GIS) of hazards for Canadian cultural heritage institutions. The greatly increased access to open data is changing how advisory bodies like the CCI and the public can access and share information.
For the purpose of investigating how a GIS approach can assist the CCI with its mandate to improve the preservation of collections, a map layer of cultural heritage institutions across Canada has been assembled and continues to be upgraded for accuracy, inclusion and detail (Fig. 1). This was combined with a collation of hazard layers; a partial list includes: seismic risk, notably expectations of earthquake severity tied to improvements in the national building code, tsunami exposure, wildfire data, hurricane, tornado, lightning density, pest distribution, and energy use indicators such as heating degree days and climate norm data. The platform allows examination of expectations around climate change driven risks such as sea-level rise, storm-incursions, permafrost melt. The GIS approach will also allow reassessments around expected changes to flood risk maps issued by jurisdictions, as well as Statistics Canada layers on population related factors such as changes in numbers of local populations, income and demographic shifts which can be stressors or opportunities.
Sources have been drawn from federal, provincial, municipal, and academic evaluations of hazards, which now are more commonly published as GIS products. Mapping Canadian heritage institution's within a GIS improves our ability to: visualise and interpret to clients the relative magnitude of their local hazards, make ties to more refined local analyses, and show adjacencies to mapped historical events. From a national perspective the GIS can generate profiles of aggregated institutional exposure to the hazards, and more readily identify sub-populations of institutions for which particular risks would rank higher or lower among their concerns.
This improves CCI's preventive conservation advisory service's perspective on mappable risks for any institution we deal with as clients. Ultimately, through federal initiatives in open data, it is our intention that client groups can look at the GIS for the purpose of educating themselves on hazards they would want to prepare for.
Managing 3D Collections Data: Developing Systems and Metadata for 3D Digitization at Scale
Authors: Blundell Jon 
Published: June 2018

As 3D digitization becomes more common in collections documentation and research, there is a growing need for tools which address the special needs of 3D data stewardship. Systems are needed to manage both the scan data collected during digitization activities, as well as the 3D models generated from that data. These systems need to be able to preserve and make transparent the complex relationships inherent in the data created from 3D digitization activities. They need to connect digital surrogates back to the objects they represent as well as provide an easy way to discover and retrieve that data for research, conservation, and public access. At the core of such systems there needs to be metadata models that can account for the intricacies and specific needs of managing 3D data.
This year, the Smithsonian Institution will be deploying new infrastructure which does just that, based on a metadata model developed by a cross disciplinary working group comprised of content experts from across the institution. The platform, which not only manages scan data, but also automates the processing and delivery of 3D digitized content, is open source and is built around modular design principles for easier adoption.
This talk builds upon last year’s SPNHC presentation “Automating 3D collection capture: Developing systems for 3D digitization at scale” as it addresses the information systems and infrastructure needed to support the management and delivery of 3D data at scale. We will cover the basic functionality of the Smithsonian’s 3D data repository, how it facilitates data administration, the workflows involved in managing and processing data, and how it connects to the larger Smithsonian infrastructure. As part of this, we will explore the metadata model behind the system and how the model can support greater usability and transparency when sharing and working with 3D scan data.
Hematolymphoid neoplasms in effusion cytology
Authors: Monappa Vidya , Reddy Saritha M. , Kudva Ranjini 
Published: June 2018

Background:
Hematolymphoid neoplasms (HLNs) presenting as body cavity effusions are not a common finding. They may be the first manifestation of the disease. A diagnosis on effusion cytology may provide an early breakthrough for effective clinical management.

Aims:
Study the cytomorphology of HLNs in effusion cytology, determine common types, sites involved and uncover useful cytomorphologic clues to subclassify them.

Materials and Methods:
Twenty-four biopsy-proven HLN cases with malignant body cavity effusions and 8 cases suspicious for HLN on cytology but negative on biopsy are included in this study. Effusion cytology smears were reviewed for cytomorphological features: cellularity, cell size, nuclear features, accompanying cells, karyorrhexis, and mitoses.

Results:
Diffuse large B-cell lymphoma (37%) was the most common lymphoma type presenting as effusion followed by peripheral T-cell lymphoma (25%). Pleural effusion (75%) was most frequent presentation followed by peritoneal effusion (20.8%). Pericardial effusion was rare (4.1%). The common cytologic features of HLNs in effusions: high cellularity, lymphoid looking cells with nuclear enlargement, dyscohesive nature, and accompanying small lymphocytes. Mitosis and karyorrhexis were higher in high-grade HLNs when compared to low-grade HLNs. Myelomatous effusion showed plasmacytoid cells. Very large, blastoid looking cells with folded nuclei, high N: C ratio, and prominent nucleoli were seen in leukemic effusion.

Conclusion:
HLNs have characteristic cytomorphology and an attempt to subclassify them should be made on effusion cytology. Reactive lymphocyte-rich effusions cannot be distinguished from low-grade lymphomas based on cytomorphology alone. Ancillary tests such as immunocytochemistry, flow cytometry, and/or molecular techniques may prove more useful in this regard.