bluuebunny/crossref_metadata_2025 huggingface dataset:
Nouvelles données sur la richetite PbO.4UO3.4H2O
Authors: Piret Paul , Deliens Michel
Published: December 2018

Richetite occurs at the Shinkolobwe uranium deposit in Shaba, Zaire. It appears as black hexagonal tablets flattened on (001) and edged by [110], [1-10] and [010], Triclinic pseudo-hexagonal, P1 or P-1, a = 20.81, b = 12.06, c = 16.30 Å, α = 103.8°, β = 115. 1°, γ = 90.4°, V = 3570 Å3, ZV = 9. Calculated density 6.02 _gr/ cm3. Strongest lines in the X-ray powder pattern are 3.122(10) 3-32, 7.12(8) 002, 3.55(6) 004, 3.47(6) 3-30, 2.486(4) 3-34 and 1.961(4) 3-36. Biaxial negative, 2V large, γ and β near 2.0, α near 1.9. Optical orientation X = c*, Y ⋀ [110] = 85°, Z ⋀ [110] = 5°. Electron microprobe analysis : PbO 16.38, UO3 78.28, H2O (by difference) 5.34 %. Formula : PbO.4UO3.4H2O. Associations : becquerelite, Kasolite, masuyite, rutherfordine, uranophane, uraninite and wölsendorfite.
Blue andalusite from Ottré, Venn-Stavelot Massif, Belgium : a new example of intervalence charge-transfer in the aluminium silicate polymorphs
Authors: Langer Klaus , Hålenius Elke , Fransolet André-Mathieu
Published: December 2018

Blue andalusite from Ottré has been studied by optical, X-ray, microprobe, and single-crystal absorption-spectrometric methods.

Refractive indices are : nα 1.637(1), nβ 1.642(1), nγ 1.647(1) ; Δ(γ-α) = 0.009 ; 2Vα = 88(2)°, optically negative. Lattice constants are a = 7.791(1), b = 7.897(1), c = 5.556(1) Å. Average chemical composition of the blue part is (Al1.959Fe3+0.012Fe2+0.006) [O|Si1.002P0.006O4] and of colourless rims (Al1.909Fe3+0.0105Fe2+0.0015) [O|Si0.999Pb0.0015O4].

The substitution Si4+[4] + M(1)3+[6] = P5+[4] + Fe(1)2+[6] is inferred to cause the incorporation of phosphorus on tetrahedral Si-sites.

The blue colour and the pleochroism of the mineral, X deep blue, Y and Z colourless, is caused by a strong, broad band system, in the E//X(//c) spectrum, centered at around 13 000 cm-1 showing two subbands at 13 400 and 10 900 cm-1. The bands originate from Fe2+-Fe3+ metal-metal charge-transfer transitions. Calculated band positions are 13 858 and 10 118 cm-1.
L'uchucchacuaïte, AgMnPb3Sb5S12, une nouvelle espèce minérale de la série de l'andorite
Authors: Moëlo Yves , Oudin Elisabeth , Picot Paul , Caye René
Published: December 2018

L'uchucchacuaïte est associée à : galène, alabandite, bénavidésite, sphalérite, pyrite, pyrrhotite et mispickel dans la minéralisation télescopée de Uchuc-Chacua (Pérou).

L'analyse à la microsonde électronique donne Pb 34,8 ; Sb 34,4 ; Ag 5,9 ; Mn 2,8 ; Fe 0,2 ; S 21,1 ; Se 0,3 ; total 99,5 %. Formule : Ag0,98(Mn0,91Fe0,06)Σ0,97 Pb3,04Sb5,09(S11,93 Se5,07)Σ12 idéalement AgMnPb3Sb5S12. L'uchucchacuaïte est pseudo-orthorhombique, de groupe spatial Pmmm, P222 ou Pmm2, avec a = 12,67, b = 19,32 et c = 4,38 Å, Z = 2. Raies les plus intenses du diagramme de poudre : 3,80 (3) (121) ; 3,49 (3) (131) ; 3,30 (10) (250) ; 2,90 (8) (321,051) ; 2,75 (3) (331) ; 2,29 (1) (171) ; 2,19 (1) (511,002) ; 2,08 (3) (531,181). Microdureté Vickers (VHN100) proche de 168 kg/mm2. Densité (calc.) = 5,61. Réflectances maximale et minimale [RMRm(λ] : 44,2 -36,3 (420) ; 43,9 -35,0 (480) ; 43,3 -34,1 (540) ; 42,4 -33,2 (600) ; 41,2 -32,3 (660) ; 39,7 -30,8 (720) ; 39,2 -30,0 (780). Entre polariseurs croisés, le maclage polysynthétique systématique suivant une seule direction serait indicatif d'une symétrie vraie monoclinique.

Cette espèce correspond à un terme faiblement substitué (And50) de la série de l'andorite. La présence de Pb et Mn en proportions identiques en site octaédrique, probablement de manière ordonnée, expliquerait ce faible degré de substitution.
Les dunites en enclaves dans les basaltes alcalins des îles océaniques : approche pétrologique
Authors: Berger Emmanuel Tobie , Vannier Michel
Published: December 2018

Dunites occurring in alkali basalts from oceanic volcanic islands most often are considered as cognate cumulates. This interpretation may be in agreement with the observed paragenesis and the composition of phases (Ol., Sp., Cpx.). An alternative interpretation is here proposed based on microscopic observations as well as thermal history estimated from microprobe data. It is suggested that the studied dunites result from an interaction of mantle-rocks and a percolating magma. Stages of this interaction are : 1/ resorption of pyroxenes ; 2/ thermal reequilibrium of olivines and spinels ; 3/ chemical reequilibrium of olivines and spinels with magma ; 4/ late crystallization of little interstitial clinopyroxenes.
The mafic silicates in the Saint Quay-Portrieux gabbro-diorite intrusion : crystallization conditions of a calc-alkaline pluton
Authors: Fabriès Jacques , Conquéré Fernand , Arnaud Gaston
Published: December 2018

Les diorites et les gabbros à deux pyroxènes, qui constituent le pluton de Saint Quay-Portrieux, renferment des enclaves comagmatiques de norites à augite et de rares gabbros à olivine. Les silicates mafiques présentent surtout une diminution progressive du rapport mg, un hiatus existant dans les compositions des minéraux entre les gabbros à olivine et les autres termes de la série. Seules les hornblendes montrent des compositions variables à l'échelle de l'échantillon et du cristal ; le zonage se traduit par une diminution de Ti, Al, (Na+K) et une augmentation du rapport mg du cœur vers le bord des cristaux.

Divers calculs thermodynamiques confirment une évolution en deux étapes. Une première cristallisation en profondeur s'est produite pour des températures entre 950 °C et 1 150 °C et des pressions d'environ 9 kbar, dans des conditions sous-saturées en eau, de faible fugacité d'oxygène, et de faible activité de silice, rendant compte du caractère très alumineux des hornblendes précoces. Le deuxième stade de cristallisation eut lieu lors de la mise en place définitive du pluton, à 800 °C-950 °C et 3-4 kbar, avec PH2O ≤ Ptotal. La réaction symptomatique de cet épisode est le remplacement possible de l'orthopyroxène par la cummingtonite. Plusieurs arguments révèlent l'origine magmatique et la stabilité fugace de la cummingtonite, qui ne peut cristalliser dans les diorites que pour des conditions très particulières, impliquant des facteurs à la fois chimiques et cinétiques liés au refroidissement, de sorte qu'elle est généralement remplacée par une hornblende.
Une paragenèse à anhydrite et barytine pseudomorphosée en quartz dans les filons métallifères de Sidi Lahcen (Maroc oriental)
Authors: Touray Jean-Claude , Chegham Abdelouahed
Published: December 2018

Description of closely tighted quartz pseudomorphs of anhydrite and barite strongly suggesting syncristallisation of these two minerals before silicification.
Size limits of magnetic-domain engineering in continuous in-plane exchange-bias prototype films
Authors: Gaul Alexander , Emmrich Daniel , Ueltzhöffer Timo , Huckfeldt Henning , Doğanay Hatice , Hackl Johanna , Khan Muhammad Imtiaz , Gottlob Daniel M , Hartmann Gregor , Beyer André , Holzinger Dennis , Nemšák Slavomír , Schneider Claus M , Gölzhäuser Armin , Reiss Günter , Ehresmann Arno
Published: December 2018

Background: The application of superparamagnetic particles as biomolecular transporters in microfluidic systems for lab-on-a-chip applications crucially depends on the ability to control their motion. One approach for magnetic-particle motion control is the superposition of static magnetic stray field landscapes (MFLs) with dynamically varying external fields. These MFLs may emerge from magnetic domains engineered both in shape and in their local anisotropies. Motion control of smaller beads does necessarily need smaller magnetic patterns, i.e., MFLs varying on smaller lateral scales. The achievable size limit of engineered magnetic domains depends on the magnetic patterning method and on the magnetic anisotropies of the material system. Smallest patterns are expected to be in the range of the domain wall width of the particular material system. To explore these limits a patterning technology is needed with a spatial resolution significantly smaller than the domain wall width.

Results: We demonstrate the application of a helium ion microscope with a beam diameter of 8 nm as a mask-less method for local domain patterning of magnetic thin-film systems. For a prototypical in-plane exchange-bias system the domain wall width has been investigated as a function of the angle between unidirectional anisotropy and domain wall. By shrinking the domain size of periodic domain stripes, we analyzed the influence of domain wall overlap on the domain stability. Finally, by changing the geometry of artificial two-dimensional domains, the influence of domain wall overlap and domain wall geometry on the ultimate domain size in the chosen system was analyzed.

Conclusion: The application of a helium ion microscope for magnetic patterning has been shown. It allowed for exploring the fundamental limits of domain engineering in an in-plane exchange-bias thin film as a prototypical system. For two-dimensional domains the limit depends on the domain geometry. The relative orientation between domain wall and anisotropy axes is a crucial parameter and therefore influences the achievable minimum domain size dramatically.
N-Acylated amino acid methyl esters from marine Roseobacter group bacteria
Authors: Bruns Hilke , Ziesche Lisa , Taniwal Nargis Khakin , Wolter Laura , Brinkhoff Thorsten , Herrmann Jennifer , Müller Rolf , Schulz Stefan
Published: December 2018

Bacteria of the Roseobacter group (Rhodobacteraceae) are important members of many marine ecosystems. Similar to other Gram-negative bacteria many roseobacters produce N-acylhomoserine lactones (AHLs) for communication by quorum sensing systems. AHLs regulate different traits like cell differentiation or antibiotic production. Related N-acylalanine methyl esters (NAMEs) have been reported as well, but so far only from Roseovarius tolerans EL-164. While screening various roseobacters isolated from macroalgae we encountered four strains, Roseovarius sp. D12_1.68, Loktanella sp. F13, F14 and D3 that produced new derivatives and analogs of NAMEs, namely N-acyl-2-aminobutyric acid methyl esters (NABME), N-acylglycine methyl esters (NAGME), N-acylvaline methyl esters (NAVME), as well as for the first time a methyl-branched NAME, N-(13-methyltetradecanoyl)alanine methyl ester. These compounds were detected by GC–MS analysis, and structural proposals were derived from the mass spectra and by derivatization. Verification of compound structures was performed by synthesis. NABMEs, NAVMEs and NAGMEs are produced in low amounts only, making mass spectrometry the method of choice for their detection. The analysis of both EI and ESI mass spectra revealed fragmentation patterns helpful for the detection of similar compounds derived from other amino acids. Some of these compounds showed antimicrobial activity. The structural similarity of N-acylated amino acid methyl esters and similar lipophilicity to AHLs might indicate a yet unknown function as signalling compounds in the ecology of these bacteria, although their singular occurrence is in strong contrast to the common occurrence of AHLs. Obviously the structural motif is not restricted to Roseovarius spp. and occurs also in other genera.
The Polarization of the Planet-Hosting WASP-18 System
Authors: Bott Kimberly , Bailey Jeremy , Cotton Daniel V. , Kedziora-Chudczer Lucyna , Marshall Jonathan P. , Meadows Victoria S.
Published: December 2018

We report observations of the linear polarization of the WASP-18 system, which harbors a massive (∼10 M
J) planet orbiting close to its star with an orbital period of 0.94 days. We find that the WASP-18 system is polarized at ∼200 parts-per-million (ppm), likely from the interstellar medium predominantly, with no strong evidence for phase-dependent modulation from reflected light from the planet. We set an upper limit of 40 ppm (99% confidence level) on the amplitude of a reflected polarized light planetary signal. We compare the results with models for a number of processes that may produce polarized light in a planetary system to determine whether we can rule out any phenomena with this limit. Models of reflected light from thick clouds can approach or exceed this limit, but such clouds are unlikely at the high temperature of the WASP-18b atmosphere. Additionally, we model the expected polarization resulting from the transit of the planet across the star and find that this has an amplitude of ∼1.6 ppm, which is well below our detection limits. We also model the polarization due to the tidal distortion of the star by the massive planet and find that this is also too small to be measured currently.
The Effects of Stellar Companions on the Observed Transiting Exoplanet Radius Distribution
Authors: Teske Johanna K. , Ciardi David R. , Howell Steve B. , Hirsch Lea A. , Johnson Rachel A.
Published: December 2018

Understanding the distribution and occurrence rate of small planets was a fundamental goal of the Kepler transiting exoplanet mission, and could be improved with K2 and Transiting Exoplanet Survey Satellite (TESS). Deriving accurate exoplanetary radii requires accurate measurements of the host star radii and the planetary transit depths, including accounting for any “third light” in the system due to nearby bound companions or background stars. High-resolution imaging of Kepler and K2 planet candidate hosts to detect very close (within ∼0.″5) background or bound stellar companions has been crucial for both confirming the planetary nature of candidates, and the determination of accurate planetary radii and mean densities. Here we present an investigation of the effect of close companions, both detected and undetected, on the observed (raw count) exoplanet radius distribution. We demonstrate that the recently detected “gap” in the observed radius distribution (also seen in the completeness-corrected distribution) is fairly robust to undetected stellar companions, given that all of the systems in the sample have undergone some kind of vetting with high-resolution imaging. However, while the gap in the observed sample is not erased or shifted, it is partially filled in after accounting for possible undetected stellar companions. These findings have implications for the most likely core composition, and thus formation location, of super-Earth and sub-Neptune planets. Furthermore, we show that without high-resolution imaging of planet candidate host stars, the shape of the observed exoplanet radius distribution will be incorrectly inferred, for both Kepler- and TESS-detected systems.
Galaxies Probing Galaxies in PRIMUS. II. The Coherence Scale of the Cool Circumgalactic Medium
Authors: Rubin Kate H. R. , Diamond-Stanic Aleksandar M. , Coil Alison L. , Crighton Neil H. M. , Stewart Kyle R.
Published: December 2018

The circumgalactic medium (CGM) close to ∼L* star-forming galaxies hosts strong Mg ii
λ2796 absorption (with equivalent width W
2796 > 0.1 Å) with a near-unity covering fraction. To characterize the spatial coherence of this absorption, we analyze the W
2796 distribution in the CGM of 27 star-forming galaxies detected in deep spectroscopy of bright background (b/g) galaxies first presented in Rubin et al. The sample foreground (f/g) systems have redshifts

and stellar masses 9.1 < log M
*/M
⊙ < 11.1, and the b/g galaxies provide spatially extended probes with half-light radii

at projected distances

 < 50 kpc. Our analysis also draws on literature W
2796 values measured in b/g QSO spectroscopy probing the halos of f/g galaxies with a similar range in M
* at z ∼ 0.25. By making the assumptions that (1) samples of like galaxies exhibit similar circumgalactic W
2796 distributions and, (2) within a given halo, the quantity log W
2796 has a Gaussian distribution with a dispersion that is constant with M
* and

, we use this QSO–galaxy pair sample to construct a model for the log W
2796 distribution in the CGM of low-redshift galaxies. Adopting this model, we then demonstrate the dependence of the observed log W
2796 distribution on the ratio of the surface area of the b/g probe to the projected absorber surface area (x
A ≡ A
G/A
A), finding that distributions that assume x
A ≥ 15 are statistically inconsistent with that observed toward our b/g galaxy sample at a 95% confidence level. This limit, in combination with the b/g galaxy sizes, requires that the length scale over which W
2796 does not vary (i.e., the “coherence scale” of Mg ii absorption) is ℓ
A > 

kpc. This novel constraint on the morphology of cool, photoionized structures in the inner CGM suggests that either these structures each extend over kiloparsec scales or the number and velocity dispersion of these structures are spatially correlated over the same scales.
Parallel and Perpendicular Diffusion Coefficients of Energetic Charged Particles with Adiabatic Focusing
Authors: Wang J. F. , Qin G.
Published: December 2018

It is very important to understand stochastic diffusion of energetic charged particles in the nonuniform background magnetic field in plasmas of astrophysics and fusion devices. Using different methods considering an along-field adiabatic focusing effect, various authors derived a parallel diffusion coefficient

and its correction T to

, where

is the parallel diffusion coefficient without an adiabatic focusing effect. In this paper, using the improved perturbation method developed by He & Schlickeiser and iteration process, we obtain a new correction

to

. Furthermore, by employing the isotropic pitch-angle scattering model

, we find that

has a different sign from that of T. In this paper, the spatial perpendicular diffusion coefficient

with the adiabatic focusing effect is also obtained.
One-fluid Relativistic Magnetohydrodynamic Equations for a Two-fluid Plasma with the Landau–Lifshitz Radiation Reaction Force
Authors: Liu Wenshuai , Bian Weihao , Zhao Bixuan , Yu Liming , Wang Chan
Published: December 2018

We derive a set of one-fluid relativistic magnetohydrodynamic equations including the Landau–Lifshitz radiation reaction force based on a relativistic two-fluid plasma. These equations could be used in situations where the spatiotemporal scales of the plasma’s motion are sufficiently large.
Slovakia and Germany - partners in defence and security area
Authors: Brajerčíková Stanislava
Published: December 2018

The paper analyses goals of the Slovak and German foreign and security policy focused on their role in NATO as well as on the role by forming European security and defence policy. The paper deals with potential and opportunities for more intensive and effective cooperation between Slovakia and Germany regarding their security and defence policy orientation. It finds out that there are some important NATO and EU projects and initiatives, such as "out of area" missions engagement, battle groups building, Framework Nations Concept or a new announced project Permanent Structured Cooperation (PESCO) to be used in the deepening process of Slovak-German security and defence relations.
Retraining of soldiers
Authors: Binková Kristýna
Published: December 2018

The retraining courses of the Ministry of Defence aim to prepare soldiers for the civilian environment and to enable them to acquire the knowledge and skills that are applicable in the labour market. In the years 2008-2017 11 605 soldiers of the Czech Armed Forces terminated their service. The application for retraining was submitted by 3 644 persons, of whom 2 769 were retrained. The prevalence of retraining is in technical professions (1 342 persons) and in managerial and business training (832 persons). The research question and the statistical evaluation of the data obtained confirms the hypothesis that most soldiers were not retrained. The results of sociological research carried out among 313 former soldiers of the Czech Armed Forces show that more than three fifths of soldiers did not apply for retraining (64%), especially among higher positions and college graduates, because of no information about the data of termination of service (25%), no need for retraining (20 %) and not completing the retraining course (30 %) mostly because of the refusal of the superiors. The shortcomings of the retraining system of professional soldiers are summarized.
Securing the Supplies of Basic Arms and Equipment of the Czech Army: The Role of domestic Defence Industry
Authors: Vinkler Pavel , Kraus Josef
Published: December 2018

This article deals with the Czech defence industry and its role in the defense policy of the Czech Republic. The basic goal of the text is a short introduction to abilities of the Czech defence industry and answering the question if and how it is able to fulfil the demand of the Czech defence sector for an armament and a military gear. Basic items needed for a military capability of soldiers on a field and the ability to develop and produce them at the Czech territory is mainly examined.
HSV Susceptibility to Acyclovir – Genotypic and Phenotypic Characterization
Authors: Vikas Raksha , Prabhu Suresha G , Mudgal Piya P , Shetty Ujwal , Karunakaran Kavitha , Jagadesh Anitha , Auti Amogh , Stansilaus Rithu P , Nair Sudheesh , Arunkumar Govindakarnavar
Published: December 2018

Background

Infections due to drug-resistant herpes simplex viruses (HSV) represent an important clinical concern, especially in immunocompromised patients. The present study was aimed at detecting acyclovir (ACV) susceptibility in HSV clinical samples.

Methods

A total of 13 HSV-positive clinical samples (5 HSV-1 and 8 HSV-2) recovered from patients (1 immunocompromised and 12 of unknown immune status) were included in the study. The genotypic analysis involved an initial UL23 (thymidine kinase) gene sequencing, followed by a confirmatory phenotypic assay using plaque reduction technique.

Results

Two novel amino acid changes, A37V and H283N, were detected in HSV-1 positive clinical samples, which were found to be susceptible to acyclovir (half maximal effective concentration = 1.5 μM) by plaque reduction assay.

Conclusions

These two novel amino acid changes could be therefore considered as natural polymorphisms, a phenomenon widely associated with the HSV-UL23 gene.
Species compositions of terrestrial isopods in public parks of a commuter town in Japan
Authors: Nasu Takahiro , Kitagawa Kana , Karasawa Shigenori
Published: December 2018

The species compositions of terrestrial isopod assemblages in 150 public parks in a commuter town in Japan were investigated. Eleven species of terrestrial isopods were present, of which seven were considered native or oriental species, and four were exotic species originally distributed in the Mediterranean and European regions. An exotic species Armadillidiumvulgare Latreille, 1804 was found in all parks. Logistic model analysis indicated that the surrounding land use affected the distributions of three native species, Burmoniscuskathmandius (Schmalfuss, 1983), Ligidiumkoreanum Flasarova, 1972, and Mongoloniscuskoreanus Verhoeff, 1930, indicating that landscape properties are important factors that limit the distributions of terrestrial isopods. The present study also showed that the public parks surrounded by forests or semi-natural environments in a commuter town provide habitats for native terrestrial isopods.
Woodlice of Belgium: an annotated checklist and bibliography (Isopoda, Oniscidea)
Authors: De Smedt Pallieter , Boerave Pepijn , Arijs Gert , Segers Stijn
Published: December 2018

Woodlice are key organisms for nutrient cycling in many terrestrial ecosystems; however, knowledge on this invertebrate group is limited as for other soil fauna taxa. Here, we present an annotated checklist of the woodlice of Belgium, a small but densely populated country in Western Europe. We reviewed all 142 publications on Belgian woodlice, the oldest dating back to 1831 and re-identified all doubtful specimens from the Royal Belgian Institute of Natural Sciences (RBINS) collection. These data is complemented with observations from extensive field surveys dating from March 2014 until December 2017. We report 36 species of woodlice with free-living populations for Belgium. Nine species can be added compared to the latest checklist published in 2000 beingHyloniscusriparius(C. Koch, 1838),MiktoniscuspatienceiVandel, 1946,TrichoniscoidessarsiPatience, 1908,HaplophthalmusmontivagusVerhoeff, 1941,PorcelliomonticolaLereboullet, 1853,Metatrichoniscoidesleydigii(Weber, 1880),TrichoniscusalemannicusVerhoeff, 1917,Elumacaelata(Miers, 1877) andPhilosciaaffinisVerhoeff, 1908. Two species are deleted from the checklist (LigidiumgermanicumVerhoeff, 1901 andArmadillidiumdepressumBrandt, 1833) because records are doubtful and no material has been preserved. Additionally the data of the field surveys is used to determine a species status of occurrence in Belgium. For each species, a short overview of their first records is provided and their confirmation as part of the Belgian fauna, their current status, as well as a complete bibliography of the species in Belgium.
Size dependence of offspring production in isopods: a synthesis
Authors: Antoł Andrzej , Czarnoleski Marcin
Published: December 2018

In isopods, parental care takes the form of offspring brooding in marsupial pouches. Marsupial brooding was an important step towards the origin of terrestrial lifestyles among isopods, but its potential role in shaping isopod life histories remains unknown. It is here considered that marsupial brooding imposes costs and creates a temporary association between the survival of mothers and that of their offspring. Integrating findings from different life history models, we predicted that the effects of marsupial brooding set selective conditions for the continuation of growth after maturation, which leads to indeterminate growth, and the production of larger offspring by larger females. Based on this perspective, a study on the size dependence of offspring production in the woodlouse Porcellioscaber was performed and the generality of the results was tested by reviewing the literature on offspring production in other isopods. In P.scaber and almost all the other studied isopods, clutch size is positively related to female size. Such dependence is a necessary pre-condition for the evolution of indeterminate growth. The body mass of P.scaber differed six-fold between the largest and smallest brooding females, indicating a high potential for post-maturation growth. Our review showed that offspring size is a rarely studied trait in isopods and that it correlates negatively with offspring number but positively with female size in nearly half of the studied species. Our study of P.scaber revealed similar patterns, but the positive effect of female size on offspring size occurred only in smaller broods, and the negative relation between clutch size and offspring size occurred only in larger females. We conclude that the intraspecific patterns of offspring production in isopods agree with theoretical predictions regarding the role of offspring brooding in shaping the adaptive patterns of female investment in growth, reproduction, and the parental care provided to individual offspring.
A Care Coordination Model Can Facilitate Interagency Collaboration When Designing Recovery-Oriented Services
Authors: Isaacs Anton N. , Firdous Farhat
Published: December 2018

The purpose of the current article is to highlight the potential of a care coordination model in promoting interagency collaboration when designing recovery-oriented services. The authors argue the case using exemplars from the literature and lessons learned from Australia's Partners in Recovery initiative. Interagency collaboration is paramount when designing a recovery-oriented service system. A care coordination model has the potential to overcome most challenges that preclude implementation of service system integration. Although the care coordination model is relatively new in recovery-oriented services and effectiveness studies of this model have yet to be undertaken, the model has the potential to be a viable alternative to service system integration. [
Journal of Psychosocial Nursing and Mental Health Services, 57
(5), 38–43.]
Structural Insights into the Preferential Binding of PGRP-SAs from Bumblebees and Honeybees to Dap-Type Peptidoglycans Rather than Lys-Type Peptidoglycans
Authors: Liu Yanjie , Zhao Xiaomeng , Huang Jiaxing , Chen Minming , An Jiandong
Published: December 2018

The peptidoglycan recognition protein SAs (PGRP-SAs) from Bombus ignitus (Bi-PGRP-SA), Apis mellifera (Am-PGRP-SA), and Megachile rotundata PGRP-SA (Mr-PGRP-SA) exhibit an intrinsic ability to preferentially bind to Dap-type peptidoglycan (PGN) from Bacillus subtilis rather than Lys-type PGN from Micrococcus luteus. This ability is more analogous to the binding exhibited by PGRP-LCx and PGRP-SD than to that exhibited by PGRP-SA in Drosophila. Moreover, Bi-PGRP-SA and Am-PGRP-SA share greater sequence identity with Drosophila PGRP-LCx than with PGRP-SD and retain several conserved contact residues, including His37/His38, His60/His61, Trp66/Trp67, Ala150/Ala151, and Thr151/Thr152. However, the corresponding contact residue Arg85 is not a major anchor residue in bees (e.g., bumblebees, honeybees, and leaf-cutting bees), and an in silico analysis indicated that the residues Thr151/Thr152 and Ser153/Ser154 of Bi-PGRP-SA and Am-PGRP-SA are deduced to be anchor residues. In addition, the nonconserved residues Asp67 in Bi-PGRP-SA and Mr-PGRP-SA and His68 in Am-PGRP-SA are deduced to be involved in the binding to Dap-type PGNs in bumblebees, honeybees, and leaf-cutting bees. We conclude that the structures and specificities of PGRP-SAs in bees are more analogous to those of PGRP-LCx than to those of Drosophila PGRP-SA. This phenomenon might be explained by the fact that the evolutionary clade of Hymenoptera is more ancient than that of Diptera.
Launching proton-dominated jets from accreting Kerr Black Holes: the case of M87
Authors: Brezinski Felix F. , Hujeirat Ahmad A.
Published: December 2018

A general relativistic model for the formation and acceleration of low mass-loaded jets from systems containing accreting black holes is presented. The model is based on previous numerical results and theoretical studies in the Newtonian regime, but modified to include the effects of space-time curvature in the vicinity of the event horizon of a spinning black hole. It is argued that the boundary layer between the Keplerian accretion disk and the event horizon is best suited for the formation and acceleration of the accretion-powered jets in active galactic nuclei and micro-quasars. The model presented here is based on matching the solutions of three different regions: i- a weakly magnetized Keplerian accretion disk in the outer part, where the transport of angular momentum is mediated through the magentorotational instability, ii- a strongly magnetized, advection-dominated and turbulent-free boundary layer (BL) between the outer cold accretion disk and the event horizon and where the plasma rotates sub-Keplerian and iii- a transition zone (TZ) between the BL and the overlying corona, where the electrons and protons are thermally uncoupled, highly dissipative and rotate super-Keplerian. In the BL, the gravitation-driven dynamical collapse of the plasma increases the strength of the poloidal magnetic field (PMF) significantly, subsequently suppressing the generation and dissipation of turbulence and turning off the primary source of heating. In this case, the BL appears much fainter than standard disk models so as if the disk truncates at a certain radius. The action of the PMF in the BL is to initiate torsional Alf`ven waves that transport angular momentum from the embedded plasma vertically into the TZ, where a significant fraction of the shear-generated toroidal magnetic field reconnects, thereby heating the protons up to the virial-temperature. Also, the strong PMF forces the electrons to cool rapidly, giving rise therefore to the formation of a gravitationally unbound two-temperature proton-dominated outflow. Our model predicts the known correlation between the Lorentz-factor and the spin parameter of the BH. It also shows that the effective surface of the BL, through which the baryons flow into the TZ, shrinks with increasing the spin parameter, implying therefore that low mass-loaded jets most likely originate from around Kerr black holes. When applying our model to the jet in the elliptical galaxy M87, we find a spin parameter a ∈ [0.99, 0.998], a transition radius rtr ≈ 30 gravitational radii and a fraction of 0.05 − 0.1 of the mass accretion rate goes into the TZ, where the plasma speeds up its outward-oriented motion to reach a Lorentz factor Γ ∈ [2.5, 5.0] at rtr.
On the Frequency of Algebraic Brauer Classes on Certain Log K3 Surfaces
Authors: Jahnel Jörg , Schindler Damaris
Published: December 2018

Given systems of two (inhomogeneous) quadratic equations in four variables, it is known that the Hasse principle for integral points may fail. Sometimes this failure can be explained by some integral Brauer–Manin obstruction. We study the existence of a non-trivial algebraic part of the Brauer group for a family of such systems and show that the failure of the integral Hasse principle due to an algebraic Brauer–Manin obstruction is rare, as for a generic choice of a system the algebraic part of the Brauer-group is trivial. We use resolvent constructions to give quantitative upper bounds on the number of exceptions.
Unconditional uniqueness for the modified Korteweg–de Vries equation on the line
Authors: Molinet Luc , Pilod Didier , Vento Stéphane
Published: December 2018

We prove that the modified Korteweg–de Vries (mKdV) equation is unconditionally well-posed in

H^s(\mathbb R)

for

s > 1/3

. Our method of proof combines the improvement of the energy method introduced recently by the first and third authors with the construction of a modified energy. Our approach also yields
a priori
estimates for the solutions of mKdV in

H^s(\mathbb R)

, for

s > 0

, and enables us to construct weak solutions at this level of regularity.
Enhance Knowledge Communication and Learning: A Surprise Paradox.
Authors: Chatelain-Jardon Ruth , Carmona Jesus S , Daniel Jose Luis
Published: December 2018

Human-computer interface is a pivotal factor that can promote or deter the effectiveness of Web-based knowledge communication. There is abundant research that strain to improve interfaces by considering user needs through usability studies, however, few research considers the incorporation of automatic brain mechanisms in order to improve knowledge communication performance. The objective of this research is not to establish a relationship between the negative stimulus presence and improved knowledge communication, but rather to show that the shape of this function follows the Yerkes–Dodson Law. Partial least squares (PLS) was utilized to analyze the data. Results found in this study support the evidence that surprising negative events enhance knowledge communication effectiveness, but more importantly that the surprise-performance relationship is not a linear function but follows the inverted U shape.
Oštirs bibliographie
Authors: Čop Bojan
Published: December 2018

Oštirs bibliographie
Medismen in der 1967 gefundenen xerxes-inschrift?
Authors: Mayrhofer Manfred
Published: December 2018

Die untere Grabinschrift des Dareios (DNb) gëhort zu den sprachlich schwierigsten und inhaltlich wichtigsten altpersischen Texten.So musste es der Altiranistik hochwillkommen sein, als 1967 eine Xerzes-Inschrift gefunden wurde1), die keine vom Dareios-Grab abge chriebene Dublette2), sondern eine in Inhalt und Sprache weitgehend übereinstimmende Parallel-Inschrift zu dem Dareios-Text ist: die Xerzes-Inschrift ist um einige Sätze kürzer, sie weicht in Wortwahl, Morphologie und Wortfolge gelegentlich von DNb ab, und sie ersetzt den Dareios-Namen durch den Namen des Sohnes. Im übrigen aber haben wir eine weitgehend gleichlautende Fassung zu dem schwierigen Grabtext des Dareios vor uns, die bereits mehrfach geholfen hat, Lücken in diesem zu füllen und richtigere Lesungen zu erkennen.
L'espressione del passato nei quotidiani delle lungue balcaniche*
Authors: Savić Momčilo D.
Published: December 2018

È inutile sottolineare che le lingue parlate dai popoli della Penisola balca­ nica vanno d'accordo in molti punti, pur non avendo la stessa origine. Le affinita in questione sono dovute tanto alla simbiosi quanto alia convivenza prolungatasi a un periodo plurisecolare. Però se non è sempre possibile de­ terminare i confini etnici di un popolo balcanico (cosa che trova riscontro anche altrove), non è neanche meno facile segnarne i rispettivi limiti linguistici. Senza dubbio, possi.amo supporre chela situazione in questo campo fosse molto piu complicata nei secoli scorSii, essendosi costituite le nazioni vere e proplie appena con le rivoluzioni borghesi, e specialmente se ricordiamo che in certe zone dei Balcani continuano ad essere applicate più lingue e che vi incontriamo oggi stesso un numero non insignificante di persone bilingui ovvero plurilingui.
Predromanske, romanske in germanske beside v slovenskem gorskem pastirstvu
Authors: Novak Vilko
Published: December 2018

Lega slovenskega ozemlja prinaša v slovenski jezik besede iz treh jezikovnih skupin. Preteklost našega ozemlja in naroda pa je posredovala jezikovni substrat in adstrat različnega izvira, predvsem za izraze raznih dejavnosti, ki so izvirale od staroselcev ali pa bile povezane z najstarejšimi sosedi Slovencev. Ena takih dejavnosti, v najstarejših in se v polpreteklih časih izredno pomembna v gorskem svetu, je gorsko pastirstvo ali planšarstvo, planovánje. Sprejeto je mnenje, da je »živinoreja ... nesporno tista gospodarska panoga, v kateri so bili vplivi prejšnjega prebivavstva relativno najmočnejsi. Tako so v živinoreji verjetno ohranjeni razmeroma močni sledovi in ostanki kulture predslovanskega prebivalstva ...
André Gide et Les fleurs du mal de Baudelaire
Authors: Cigoj Leben Breda
Published: December 2018

Andre Gide connut à fond le charme de la poésie vers 1885, à l'âge de seize ans, quand on lui permit de fouiller seul dans la bibliothèque de son père. A cette époque il tenait la poésie pour «la fleur et l'aboutissement de la vie» (J. II, 491). Ce fut Victor Hugo dont il apprit par creur nombre de pièces, ce fut surtout Henri Heine, lu d'abord dans la traduction et bientôt dans le texte, qui le boulversèrent profondément: J e me revois, étendu sur le tapis, à I'étrusque, au pied de la petite bibliothèque ouverte, en ce printemps de ma seizième année, tremblant à découvrir, a sentir s'éveiller et répondre à l'appel d'Henri Heine l'abondant priritemps de mon cceur( Ibid., 482).
Discorso e pragmatic della comunicazione
Authors: Segre Cesare
Published: December 2018

«Dans son acception linguistique moderne, le terme de discours désigne tout énoncé supérieur à la phrase, considéré du point de vue des règles d'enchaînement des suites de phrases. La perspective de l'analyse de discours s'opose done à toute optique tendant à traiter la phrase comme l'unité linguistique terminale». Questa definizione del Dictionnaire de linguistique di J. Dubois, M. Giacomo, L. Guespin, Ch. Marcellesi, J.-B. Marcellesi,. J.-P. Mevel (Paris, Larousse, 1973) è sufficiente per definire il concetto, alla cui storia e alle cui implicazioni dedicherò un altro lavoro. E' un concetto sviluppato dalla linguistica postsaussuriana con varietà di accenti, ma con sostanziale concordia sui suoi legami con la situazione in cui il discorso viene emesso. Si tratta dellato pragmatico della comu­ nicazione, già ben percepito da Ch. Morris (Lineamenti di una teoria dei segni, Torino 1954 [Chicago 1938]): «Con 'pragmatica' designamo la scienza del rap porto dei segni coi loro interpreti»; essa dratta gli aspetti biotici della semiosi, cioè tutti i fenomeni psicologici, biologici e sociologici che intervengono nel funzionamento dei segni» (p. 82); «La pragmatica tenta di sviluppare termini atti allo studio del rapporto dei segni con chi se ne serve e all'ordinamento sistematico dei risultati di tale studio» (pp. 90-91). Mentre per gli aspetti biologici e psicologici si sono sviluppati rami autonomi di ricerca, l'accento, in sede comunicativa, è stato posto prevalentemente sulla situazione (chiamata da alcuni contesto; termine che però è anche usato, da altri, per indicare l'assieme delle parole che compongono un testo).
Agli albori dell’Italiano
Authors: Tekavčić Pavao
Published: December 2018

Parlare degli albori, dei primi passi dell'italiano, equivale alla discussione sulla ben nota questione: da quando si parla italiano? La domanda è evidentemente di importanza fondamentale per la genesi dell'italiano e il problema è tanto dibattuto che può davvero sembrare impossibile aggiungervi qualcosa di nuovo. Eppure, a nostro avviso, c'è spazio ancora per alcune constatazioni, sia mettendo a fuoco vecchi problemi dal punto di vista della linguistica moderna, sia cercando soluzioni per i problemi ancora aperti. Lo scopo del presente contributo è tuttavia più modesto: esso si propone di illustrare l'esistenza di una determinata serie di fenomeni linguistici, caratteristici per l'italiano, già nei documenti altomedievali scritti in latino, documenti che sono l'unica fonte per l'Alto Medioevo (secoli VII-X all'incirca).1 Abbiamo scelto come corpus il Codice diplomatico longobardo pubblicato da L. Schiaparelli, una delle più importanti raccolte di tali documenti.
Izpeljava slovenskih samostalnikov
Authors: Toporišič ]ože
Published: December 2018

Slovensko tradicionalno besedotvorje samostalnika z izpeljavo1 prikazuje zadevno problematiko tako, da izhaja (po zgledu na Miklošiča) iz priponskih obrazil s karakterističnim glasom (zlasti soglasnikom) in nato ob različnih podstavah ugotavlja pomenske kategorije tvorjenk z istim obrazilom. Vendar je že A. Bajec na koncu citirane knjige (str. 126 do 128) dodal poglavje Pripone po njih pomenu. Tam navaja vsega 24 pomenskih skupin: nomina 1. actionis, 2. agentis, 3. acti, 4. loci, 5. instrumenti, nato še 6. deminutiva, 8. avgmentativa, 9. pejorativa, 10. abstrakta, 11. sorodstvena imena, 12. imena moških in 13. ženskih oseb, 14. prebivalcev, 15. mladičev, 16. ptičev, 17. rastlin in rastlinskih delov, 18. snovi, 19. mer in cene, 20. obsega meje glagolskega dejanja, 21. splošne pripadnosti, 22. posnemanja naravnih glasov, 23. substantivizacije iz pridevnikov in 24. konkretizacijo abstrakt. V Slovenski slovnici 1956, 110 do 115, A. Bajec podaja najprej pomenske skupine pripon, in sicer 16: dodal je skupino skupnih imen, opustil pa enote 11-12, 15-18, 20-21 in 23-24, nato pa spet obširneje obdelal rabo nekaterih pripon.
Klokotičanski govor – krašovanski govor u Rumuniji
Authors: Vescu Victor
Published: December 2018

Selo klokotič (Clocotici) je jedno od sedam krašovanskih sela (Karašova, Jabalča, Lupak, Nermet, Rafnik, Vodnik) koja se nalaze u centralnom delu Karaš-severinske županije, jugoistočno od Rešice (administrativnog centra županije). Osnovano je, kako izgleda, u XVIII veku iseljavanjem življa iz starog sela koje se nalazilo oko 2 km. zapadnije od sadašnjeg i bilo napušteno usled epidemije kolere. Današnji Klokotičani (preko 1000) u velikoj većini su potomci starog stanovništva koje se odvojilo od prvobitnog krašovanskog jezgra i živelo rasuto po salašima. Stanovnici su katolici, sto je doprinelo stvaranju cvrstog uverenja (koje inače vlada među svim Krašovanima) da su Hrvati. Očigledno da su tu svest, koja se tako duboko ukorenila, usadili naime hrvatski kaluderi i svestenici, a zatim i slovački i mađarski, koji su se u toku nekoliko vekova redali po krašovanskim crkvama. Pojedini podaci o klokotičanskom govoru (kao i druge prirode) nalaze se u člancima i studijama o Krašovanima i njihovom jeziku, kojima su istrazivači, sudeći po obimu objavljenog materijala, poklonili veliku pažnju.
Traduttori croati del «canzoniere» - note aggettivali contrastive
Authors: Cernecca Domenico
Published: December 2018

Se nel paese  d'origine la possibilità di diventare petrarchisti nasce dall'imitazione diretta del Petrarca nella  sua  stessa  lingua, nelle  nazioni straniere, la  radice del  petrarchismo inteso nella  sua  accezione più  gene­ rale  come «complesso  dell'azione esercitata con effetto positivo e negativo dal  Petrarca e dai  suoi  imitatori nella  storia della  poesia  e della  lettera­ tura, del  pensiero, del  costume e  della   civiltà,  va  ricercata anzitutto nella  traduzione, porta obbligata attraverso la quale sono passati in larga schiera non  solo  i letterati del  passato, ma continuano a  passare, sotto forme   e  appellativi  diversi, anche molti  letterati e poeti   del  presente. Prova ne sono non  soltanto i debiti artistici diretti e indiretti, confessati o  sotterranei e  abilmente  nascosti della   creazione poetica  autonoma  (i quali possono  essere  sempre negati e diventare oggetto di  polemica), ma anche e soprattutto i saggi  di  traduzione, a cui  sono  state sottoposte nel corso dei secoli le rime sparse nelle varie liniue di cultura dell'Europa.
Zur ausrahmung und ihrer function
Authors: Heusinger Siegfried
Published: December 2018

Sätze wie die folgenden heben sich auf Grund ihrer besonderen struktur von der usuellen Sprachform ab: - Der Gedankenaustausch … wurde abgebrochen durch das Kommando "Lagern". - Immerhin schien er sich zu nähern, langsam, aber unverkennbar. - Er hatte recht gehabt mit seinen finsteren Ahnungen. - …, wenn er hungrig heimgekommen war von seinen wohlhabenden Schülern. Der Autor sprengt den für das Deutsche charakteristischen prädikativen Rahmen, oder anders gesagt: Er rahmt (klammert) Satzglieder aus und verstößt offenbar gegen syntaktische Normen.
Reggenza e accordo
Authors: Jernej Josip
Published: December 2018

I rapporti esistenti fra le parole nella frase possono raggrupparsi, com' è noto, in tre categorie: reggenza, funzione e ordine delle parole. La reggenza riguarda il modo in cui alcune parole impongono ad altre certe varizioni di forma (genere, numero, caso, persona). Rientra in questa categoria anche l'accordo. La funzione può definirsi quel rapporto particolare che unisce un elemento costitutivo (un tassema) alla totalità della frase (ovvero all' elemento reggente di un sintagma). L' ordine delle parole comprende le regole che soprassiedono alla sequenza dei "segmenti locutori" nel discorso Questi tre aspetti della sintassi possono venir trattati indipendentemente l' uno dall' altro, tuttavia il concetto di reggenza è talmente legato a quello di funzione che relativi richiami fra questi due concetti riescono inevitabili.
The Hittite nunstarrijashas -festival (CTH 626)
Authors: Košak Sivin
Published: December 2018

Although the mmtarrijashas-festival is one of the most elaborate and extensive Hittite religious celebrations, its purpose still remains unclear. The first prob­ lem lies with the title itself. The word nuntarrijashas itself is faintly clear; it is a -aha-formation (Čop 1971, 62-81) from the adverb nuntaraš "quickly, swiftly"; a derivation from a verb meaning "to hurry, to hasten" ( Güterbock 1970, 178) is also possible, although a verb *nuntarrija- is not yet known from Hittite texts. The title should thus be rendered as "Festival of Speed" which bears little or no relation to the activities described during this festival. It was earlier thought that the title related to the speed with which the king travelled from one place to another (Goetze 1957, 165) but the same would apply e.g. for the AN. TAH. ŠUM-festival performed in spring (Cornelius 1970, 171 ff. ). Another possibility could be cultic racing, but again, for this activity the verb pittai- "to race, to run" is used (Otten 1951, 228 and n. 38), while here the functionaries are "rushing forwards" for which the verb piran huwai- is employed (KUB XXV 12 VI 5). The matter is further complicated with the statement referring to the fifth day of the festival which alone is stressed as being the nuntarrijashas-festival. Perhaps this activity is the essential part which lent its name to the whole festival. Here the "depositing" of recently harvested grain, honey and wine is "re­ leased" for common use (Hoffner 1974, 49).
A note of Hittite da-ah-hi
Authors: Schmalstieg William R.
Published: December 2018

It has  long  been   suggested that   the  Hittite verb da-ah-hi 'I take' is to  be connected with  the  Indo-European root *dō- ' to  give'. (See Friedrich, 1952, 201;   Kronasser,   1966,  533-534;  Kammenhuber, 1969,  235-236).  The  pur­pose   of  this  paper is to  support this suggestion but  in  a  slightly different way  than  it has  been  supported in  the  past.