Effect on the demand and stock returns: cross-sectional of Big Data and time-series analysis

For reducing the degree of uncertainty caused by constant change in the environment, large, medium or small, private or public organizations must support their decisions in something more than experience or intuition; they must be supported by the development of accurate and reliable forecasts in order to meet the needs in the organization planning tasks. This case study presents a growing company dedicated to the storage of perishable products and incorporates time series forecasting techniques to estimate the volume of storage to foresee the requirements of additional facilities, personnel and materials needed for product mobility

Mesoporous hybrid material composed of Mn3O4 nanoparticles on nitrogen-doped graphene for highly efficient oxygen reduction reaction

The hybrid material composed of Mn3O4 nanoparticles on nitrogendoped graphene was prepared via a solvothermal process and investigated for the first time as a catalyst for oxygen reduction reaction (ORR). Its high ORR activity, excellent durability and tolerance to methanol make this hybrid material a promising candidate for highly efficient ORR in fuel cells and metal-air batteries.Jingjing Duan, Yao Zheng, Sheng Chen, Youhong Tang, Mietek Jaroniec and Shizhang Qia

Verwertungsgesellschaften nach deutschem und europäischem Kartellrecht

Der einzelne Urheber ist in aller Regel nicht in der Lage, seine urheberrechtlichen Nutzungsrechte selbständig effektiv zu verwerten. Auf allen Gebieten haben sich daher Verwertungsgesellschaften gebildet, die für die einzelnen Urheber deren Rechte wahrnehmen. Diese Konzentration aller Rechte in der Hand einer Verwertungsgesellschaft steht bei einer streng kartellrechtlich ausgerichteten Betrachtung im Spannungsverhältnis zu den Ideen des am Wettbewerbsprinzip ausgerichteten Kartellrechts. Diese Studie untersucht die Frage, inwieweit das Kartellrecht auf die Tätigkeit der Verwertungsgesellschaften angewendet werden kann. Der Autor kommt zu dem Ergebnis, daß eine kartellrechtliche Kontrolle, welche die Besonderheiten des Marktes für urheberrechtliche Nutzungsrechte angemessen berücksichtigt, einer effektiven Verwertung der Nutzungsrechte nicht im Wege steht, sondern diese vielmehr fördert

Study of 27 Y-STR markers in United Arab Emirates population

The recently introduced 6-dyes Yfiler® Plus multiplex kit which includes 27 Y-STR loci has been used to study 436 UAE Arab male individuals. In addition to the 17 Y-STRs traditionally used in Yfiler® multiplex kit, Yfiler® Plus has ten additional Y-STRs. It includes seven rapidly mutating Y-STRs (RM Y-STRs) namely DYS560, DYS576, DYS627, DYS518, DYS449 and DYF387S1ab, and three moderately mutating Y-STRs namely DYS481, DYS533 and DYS460. The RM Y-STRs were already proven to be powerful for discriminating closely related and unrelated males’ individuals. As a result, a total number of 419 haplotypes were observed out of 436 samples analysed of UAE Arab males’ population, whereas 15 haplotypes were shared between two individuals and one haplotypes were shared between three individuals. The discrimination capacity (DC) for the 27 loci was found to be 0.9618 whereas haplotype diversity (HD) was found to be 0.99982. AMOVA results showed that UAE population clustered along with Saudi Arabia East [Arab] population which indicates that they have a closer genetic relation. While it was standing away compared to other relevant populations. In conclusion, Yfiler® Plus multiplex kit showed higher power of discrimination than all previous studies conducted on the same population. This study considered the first study conducted using 27 Y-STR loci in this population. Geographic distribution of the populations analysed in this study are well reflected in the genetic distance results

ALD of Ultrathin Ternary Oxide Electrocatalysts for Water Splitting

Semiconducting oxides, particularly mixtures of different transition-metal oxides, are promising materials for oxygen evolution reaction (OER) catalysts. Assessment of these materials is often complicated by inadequate dispersion of the materials, charge transport limitations, and lack of surface area characterization. Thin films deposited by atomic layer deposition (ALD) present an excellent way to overcome these issues. Here, we present the first work using ALD to investigate ternary oxide electrocatalysts, specifically with the Ti–Mn ternary oxide system. Thin-film mixtures of between 1.4 and 2.8 nm in thickness are successfully synthesized by ALD and show a high degree of mixing. At compositions between ∼10 and 70% Mn:(Mn+Ti), there is a reduction in ALD growth rate relative to the growth rates of the binary constituents. Moreover, we observe a shift in the chemical binding energies of both Mn and Ti over this composition range. An elevation in the activity of Mn active sites for OER is observed with increasing MnO_<i>x</i> content in TiO₂, increasing the turnover frequency (TOF) by approximately an order of magnitude. These results are consistent with previous DFT calculations. We also explore the effect of film thickness of the ternary metal oxide on catalytic activity, highlighting how ALD allows for charge transport limitations to be minimized

Effect of O₃ on Growth of Pt by Atomic Layer Deposition

The growth characteristics of Pt deposited by atomic layer deposition (ALD) with methylcyclopentadienyltrimethylplatinum (MeCpPtMe₃) and O₃ are studied both experimentally and by modeling. The growth rate of Pt ALD using O₃ is higher than that using either air or O₂ counter reactants. In addition, a low deposition temperature of 150 °C for the deposition of metallic Pt using O₃ is obtained. To investigate the role of O₃ during initial growth, Pt is deposited on O₃-pretreated SiO₂ using air as the counter reactant. Pt deposited in this way on O₃-pretreated SiO₂ shows a rapid increase of surface coverage, which is similar to Pt ALD using O₃ and different from Pt ALD using air on untreated SiO₂. From the modeling study, it is found that pretreating the surface with O₃ increases the steady state nucleation rate and decreases the nucleation incubation time on the SiO₂ surface, the same phenomena which are believed to occur during the initial growth of ALD Pt using O₃ counter reactant