Pricing the Global Industry Portfolios

We investigate the ability of several international asset pricing models to price the returns on 36 FTSE global industry portfolios. The models are the international capital asset pricing model (ICAPM) the ICAPM with exchange risks, and global two-factor and three-factor Fama-French (1996, 1998) models. We apply the methodology of Hansen and Jagannathan (1997). While all of the models can correctly price the basic assets, exchange risks are unimportant and only the global three-factor Fama-French model passes a robustness check which requires the models to also price portfolios sorted by book-to-market ratio.

Fluorescence enhancement via lossless all-dielectric spherical mesocavities

Metal nanoparticles have traditionally been used to enhance optical signals, including fluorescence from a dye proximal to the particle. Here, we sought to examine whether appreciable enhancement was possible using relatively simple all-dielectric particles. Using rapid numerical simulations, we deduce that lossless all-dielectric spherical particles with mesoscale sizes, between nanoscale ($\lesssim 100$~nm) and microscale ($\gtrsim 1$ $\mu$m), are surprisingly suitable for fluorescence enhancement demonstrating up to $F\sim 10^4$ enhancement factors. We discuss both the enhancement possible as well as limiting losses, which are distinct from those observed in metal particles. For a given sphere of a specific refractive index size matters: much larger fluorescence enhancement can be achieved with meso-sized particles than with particles of smaller size. The enhancement originates from multipolar ($4 \lesssim \ell \lesssim 10$) resonances which induce much stronger electric field enhancement within spheres. The order, $\ell$, of these resonances is larger than conventionally utilized dipolar or quadrupolar Mie resonances in nanoparticles and smaller than of typical whispering gallery modes ($\ell \gtrsim 20$) in microparticles. With the absence of non-radiative Ohmic losses inherent to plasmonic particles, $F$ can increase, decrease or even stay the same with increasing intrinsic quantum yield $q_0$, for suppressed, enhanced or intact radiative decay rates of fluorophore. This work serves to draw attention to the use of dielectric particles for engineering strong fluorescence enhancement, pointing to possible applications of these materials in imaging, molecular sensing, light coupling, and quantum information processing.Comment: 17 pages, 5 figure

catena-Poly[[[aqua­copper(II)]bis­[μ-bis(3,5-dimethyl-1H-pyrazol-4-yl) selenide]] bis­(tetra­fluorido­borate) bis­(triphenyl­phosphine oxide) monohydrate]

The title compound, {[Cu(C10H14N4Se)2(H2O)](BF4)2·2C18H15PO·H2O}n, has a polymeric structure where each CuII ion adopts a square-pyramidal coordination constituted by four N atoms of pyrazole moieties in the equatorial plane and an axial O atom of a water mol­ecule. A pair of bis­(3,5-dimethyl-1H-pyrazol-4-yl) selenide ligands bridges the CuII centres into a chain extending along the c axis. The water mol­ecules, anions and triphenyl­phosphine oxide mol­ecules are involved in inter­molecular hydrogen bonding, which links the chains into a three-dimensional network

Colloidal Silicon Dioxide in Tablet form (Carbowhite) Efcacy in Patients with Acute Diarrhea: Results of Randomized, DoubleBlind, Placebo-Controlled, MultiCenter Study

The acute diarrhea is a wide-spread disease. The prescription of enterosorbents is appropriate as a primary measure for the treatment of the acute diarrhea for efective prevention of the fuid and electrolyte loss, as well as method for symptom relief of the attack of the disease. Aim of the study - the antidiarrheal efcacy and safety study of high-dispersion silicon dioxide enterosorbent in tablet dosage form in patients with acute diarrhea. This was randomized, double-blind, placebo-controlled, 4-center study. Acute diarrhea was defned as three and more episodes of watery stool per day either during 48hours or less before study entry in the patients having normal stool recently. It has been postulated that symptoms and signs of acute diarrhea have to be caused by direct infection of the gastrointestinal tract and did not associated with moderate-to-severe systemic states. 144 patients with established acute diarrhea were randomized into treatment group (enterosorbent “Carbowhite”, n=120) or placebo group. Date collection including severity diarrhea, systemic symptoms was performed at baseline and daily during 7 days. Stool examination and serological assay were performed at baseline. The primary end points were declared as time to complete recovery from acute diarrhea. It has been found that the use of the siliceous enterosorbent (“Carbowhite”) allowed to reduce (p<0.001) the treatment period averagely for 0.9 days (95% confdence interval 0.5–1.2 days) in comparison with placebo. Data of safety monitoring has revealed that both patient groups had negative stool culture, while initiation of antibiotic treatment was run more frequently in placebo group (8.3%) compared to investigational product group (4.1%, P=0.044). The siliceous enterosorbent “Carbowhite” was well tolerated and reduced the recovery time of the acute episode of the diarrhea in the clinically signifcant form

catena-Poly[[[aqua­copper(II)]-bis­[μ-bis­(3,5-dimethyl-1H-pyrazol-4-yl) selenide-κ2 N 2:N 2′]] dichloride monohydrate]

In the title compound, {[Cu(C10H14N4Se)2(H2O)]Cl2·H2O}n, the CuII ion, lying on a twofold rotation axis, has a square-pyramidal geometry constituted by four N atoms of pyrazolyl groups in the basal plane and an apical O atom of a water mol­ecule. A pair of bis­(3,5-dimethyl-1H-pyrazol-4-yl) selenide ligands bridge the Cu centers into a polymeric double-chain extending along [001]. The chloride anions are involved in inter­molecular N—H⋯Cl and O—H⋯Cl hydrogen bonds, which link the chains into a three-dimensional network

3,5-Dimethyl-4-nitroso-1H-pyrazole

In the unit cell of the title compound, C5H7N3O, there are two conformers (A and B) which differ in the position of the oxime group with respect to the protonated pyrazole nitro­gen (trans in the A conformer and cis in the B conformer) and in the geometric parameters. The oxime group exists in the nitroso form in both conformers. In the crystal, mol­ecules are linked by inter­molecular N—H⋯O and N—H⋯N hydrogen bonds into zigzag-like chains along the b axis

Дослідження втрат потужності в аксіально-поршневих гідромашинах

Даний аналіз технічного рівня аксіальнопоршневих гідромашин, використованих в мобільних об'ємних гідроприводах і переважно в замкненому ланцюзі циркуляції робочої рідини, у тому числі провідних зарубіжних фірм і вітчизняних виробництва Кропивницкого ВАТ Гідросила, в яких завдяки переходу на тиск робочої рідини до 45 МПа істотно підвищений технічний рівень. Приведені результати втрат потужності в насосах і гідромоторах на режимах, відмінних від номінального, включаючи визначення потужності приводного двигуна насоса при «нульовому» положенні похилого диска і перепаду тисків на гідромоторі при роботі на режимі холостого ходу.Ключові слова: аксіальнопоршневі гідромашини, насос, гідромотор, гідропривод, технічний рівень, тиск, частота обертання, втрати потужності. The analysis of technical level of axial piston hydraulic machines is given for mobile hydraulic fluid power transmission and mainly in the hydraulic fluid power closed circuit. The object of researches were hydraulic fluid power with hydraulic motors with fixed displacement and angled piston motor and pumps with the angled disk and managed displacement with the electric proportional and hydraulic management of firms of M. REXROTН, SAUER - SUNDSTRAND and HYDROSILA (Ukraine). Experimental data on the hydraulic machines of HYDROSILA got first. Due to passing to pressure of working fluid to 45 МПа the technical level of homeland hydraulic machines is substantially enhanceable. Results over of losses of power are brought also in pumps and hydraulic motors on the specification modes, including determination of leading engine of pump power at «zero» position and drop of pressure on a hydraulic motor during work on the mode of idling. The account of these types of losses is important from the point of view of minimization of losses of power during work of a hydraulic fluid power in composition hydromechanical double-flux transmissions and providing of the sufficient taking of heat.Keywords: axial piston hydraulic machines, pump, hydraulic motor, hydraulic fluid power, technical level, pressure, frequency of rotation, loss of power