Evaluation of the Delay-Aware NUM-Driven Framework in an Internetwork Environment, Journal of Telecommunications and Information Technology, 2014, nr 3

Nowadays, due to emergence of cloud services, even the basic uses of personal computers may require the access to the Internet. In this paper modifications to Delay-Aware Network Utility Maximization System (DANUMS) are presented, which enable it to be deployed in an internetwork environment. The proposed solution consists of DANUMS and WiOptiMo systems, which cooperate by exchanging measurements of transmitted traffic in order to improve the network utility. Additionally, WiOptiMo enhances mobility by providing facilities for soft handover. Experiments presented in this paper illustrate the benefits gained from the integrated system application

The Presence of a Single Nuchal Cord in the Third Trimester May Not Affect Tei Index in LGA Fetuses

(1) Background: The aim of this study was to assess the RV (right ventricle) and LV (left ventricle) Tei index in large for gestational age (LGA) fetuses with a single 360-degree umbilical coil of the umbilical cord around the fetal neck identified by ultrasound in the third trimester of gestation. (2) Methods: The RV and LV Tei index for the cardiac function were measured in 297 singleton pregnancies, and we identified 25 LGA fetuses. There were 48% of LGA fetuses with a nuchal umbilical cord—LGA/NC—larger for gestational age fetuses with a nuchal cord. NC was detected with a color Doppler during a transverse scan of the fetal neck, when the umbilical cord formed a U shape. All fetuses had normal anatomy and normal uterine, placental, umbilical, intracardiac and cerebral Doppler waveforms values for their gestational age. (3) Results: The RV Tei index was significantly higher in the LGA subgroup vs. AGA (0.6 ± 0.2 vs. 0.50 ± 0.2; p value = 0.01), but in LGA fetuses with a single coil of the nuchal cord, there were not any significant changes in the Tei indexes. (4) Conclusions: The Tei index might not be impacted by the presence of the nuchal cord in LGA fetuses

How thermal treatment affects the chemical composition and the physical, mechanical and swelling properties of Scots pine juvenile and mature wood

High variations in juvenile wood properties in the radial direction and its worse performance than mature wood make it less suitable for some applications and often treated as waste material. This study aimed to assess how thermal modification affects the chemical composition and the physical, mechanical and swelling properties of Scots pine juvenile and mature wood. An additional goal was to evaluate if the modification can equalise the differences in selected properties of juvenile wood to those of mature wood so that from waste material, juvenile wood can become a fully-fledged raw material for various industrial applications. Thermal treatment at 220 °C influenced wood chemical composition, degrading mainly hemicelluloses but also affecting cellulose and lignin, which resulted in a reduction of hydroxyls and carbonyl/carboxyl groups. These changes were more pronounced for mature than juvenile wood. It reduced mass loss and swelling rate, and increased swelling pressure in the tangential and radial directions to a higher degree for juvenile than mature wood. Changes in mechanical properties in compression were statistically significant only for mature wood, while wood hardness remained unaffected. Although the applied heat treatment improved the performance of juvenile wood by reducing its swelling rate, it did not equalise the examined properties between juvenile and mature wood. Since higher juvenile wood proportion is expected in the wood supply from the future intensively managed forests, there is still a need to find suitable modification methods or better processing techniques so that instead of being thrown away as waste, it could be used broadly in various industrial applications

Approche interdisciplinaire d’un atelier minéralurgique du XVe s à Sainte-Marie aux-Mines (Haut-Rhin, France)

International audienc

Helium in superstrong magnetic fields

We investigate the helium atom embedded in a superstrong magnetic field gamma=100-10000 au. All effects due to the finite nuclear mass for vanishing pseudomomentum are taken into account. The influence and the magnitude of the different finite mass effects are analyzed and discussed. Within our full configuration interaction approach calculations are performed for the magnetic quantum numbers M=0,-1,-2,-3, singlet and triplet states, as well as positive and negative z parities. Up to six excited states for each symmetry are studied. With increasing field strength the number of bound states decreases rapidly and we remain with a comparatively small number of bound states for gamma=10^4 au within the symmetries investigated here.Comment: 16 pages, including 14 eps figures, submitted to Phys. Rev.

Approche isotopique pour tracer la dynamique de l’eau et des nutriments dans les sols forestiers

La fertilité des sols forestiers est généralement estimée par l’étude des cycles de l’eau et des éléments nutritifs essentiels aux êtres vivants (cycles biogéochimiques). Parmi l’ensemble des méthodes d’étude de ces cycles, une approche innovante, complémentaire des études plus classiques, consiste à utiliser des traceurs géochimiques ou isotopiques. Les démarches expérimentales et résultats de quelques études récentes dans le domaine, utilisant des traceurs naturellement présents dans les écosystèmes (ex. 18O, 13C, 26Mg) ou artificiellement apportés (ex. enrichissements en Sr, Rb, 15N, 44Ca, 26Mg, 32P) seront présentés. Ces résultats seront discutés pour faire un point sur la pertinence d’utilisation de ces outils pour définir les sources, avoir accès au temps de résidence de l’eau et des éléments, et tracer les flux de nutriments qu’ils soient d’origine organique ou minérale, internes ou externes à l’écosystème

Metody i obszary zarządzania

Publikacja recenzowana / Peer-reviewed publicationOpracowanie poświęcone jest charakterystyce i propozycji rozwiązania wybranych problemów zarządzania. Kilka tekstów dotyczy roli mediów (a także innych instrumentów) w marketingu. Ciekawe jest opracowanie oparte na pewnej autorskiej typologii instrumentów marketingu-mix stosowych przez przedsiębiorstwa działające na rynkach zagranicznych. Druga grupa artykułów poświęcona jest nowym formom zatrudnienia, partycypacji pracowników oraz standardów ochrony pracy, które winny być stosowane przez nasze organizacje. Zatem blok ten dotyczy zagadnień organizacji pracy. Są także artykuły prezentujące konkretne metody zarządzania, począwszy od zarządzania komunikacją, przez zarządzanie strategiczne, a na systemach zarządzania produkcją skończywszy. Niektórzy Autorzy podejmują się nie tylko prezentacji, a także przedstawiają pewne rozwiązania zagadnień dotyczących niemal wszystkich obywateli. Tu przede wszystkim należy wymienić rozważania o kształtowaniu tran sportu publicznego. Ciekawe jest także studium o możliwości wykorzystania Internetu na rynku ubezpieczeń społecznych

Arbuscular mycorrhizal community structure on co-existing tropical legume trees in French Guiana

Aims We aimed to characterise the arbuscular mycorrhizal fungal (AMF) community structure and potential edaphic determinants in the dominating, but poorly described, root-colonizing Paris-type AMF community on co-occurring Amazonian leguminous trees. Methods Three highly productive leguminous trees (Dicorynia guianensis, Eperua falcata and Tachigali melinonii were targeted) in species-rich forests on contrasting soil types at the Nouragues Research Station in central French Guiana. Abundant AMF SSU rRNA amplicons (NS31-AM1 & AML1-AML2 primers) from roots identified via trnL profiling were subjected to denaturing gradient gel electrophoresis (DGGE), clone library sequencing and phylogenetic analysis. Results Classical approaches targeting abundant SSU amplicons highlighted a diverse root-colonizing symbiotic AMF community dominated by members of the Glomeraceae. DGGE profiling indicated that, of the edaphic factors investigated, soil nitrogen was most important in influencing the AMF community and this was more important than any host tree species effect. Conclusions Dominating Paris-type mycorrhizal leguminous trees in Amazonian soils host diverse and novel taxa within the Glomeraceae that appear under edaphic selection in the investigated tropical forests. Linking symbiotic diversity of identified AMF taxa to ecological processes is the next challenge ahead