We study the Euler numbers and the entropies of the non-extremal intersecting D-branes in ten-dimensions. We use the surface gravity to constrain the compactification radii. We correctly obtain the integer valued Euler numbers for these radii. Moreover, the entropies are found to be invariant under the T-duality transformation. In the extremal limit, we obtain the finite entropies only for two ...

The quantum string emission by Black Holes is computed in the framework of the ‘string analogue model’ (or thermodynamical approach), which is well suited to combine quantum field theory (QFT) and string theory in curved backgrounds (particulary here, as black holes and strings posses intrinsic thermal features and temperatures). String theory properly describes black-hole evaporation. The blac...

The spectrophotometric determination method of scandium with eriochrome cyanine R (ECR) and the composition ratio of the complex were investigated in the presence of surfactants. A volume of 5 mL of 1.0×10−3 M ECR and 10 mL of 2.0×10−4 M CTMAB are necessary for the determination of 1.0×10−7 ~ 3.0×10−6 M Sc(III) at pH 6.5. The apparent molar absorption coefficient of the Sc(III)-ECR-CTMAB, terna...

The recently suggested interpretation [1] of the universal hadronic freeze-out temperature T f (≃ 170 Mev) – found for all high energy scattering processes that produce hadrons: e + e − , pp, p¯ p, πp, etc. and N N ′ (heavy-ion collisions) – as a Unruh temperature triggers here the search for the gravitational black-hole that in its near-horizon approximation better simulates this hadronic phen...

Three dimensional spacelike warped anti-de Sitter space is studied in the context of Einstein theories of gravity and string theory, where there is no gravitational Chern-Simons term in the action. We propose that it is holographically dual to a two-dimensional conformal field theory with equal left and right moving central charges. Various checks of the central charges are offered, based on th...

Ezra Black, S t e p h e n Eubank, Hidek i Kashioka A T R I n t e r p r e t i n g T e l e c o m m u n i c a t i o n s Labora to r i e s 2-2 Hikar idai Seilm-cho, So raku-gun Kyoto, Japan 619-02 black@air, i~l. co. jp kashioka@a~r, itl. co. jp eub~-~@atr, itl. c o . jp David M a g e r m a n Renaissance Technologies Corp . 25 East Loop Road, Suite 211 Stony Brook , IVY 11776 U S A magermau~rencec,...

The pigmentation of black (wild) and red (mutant) eyes of Triatoma infestans was studied spectrophotometrically and compared with red-eyed (wild) and white-eyed (mutant) forms of Drosophila melanogaster. The spectral absorption profiles of the black and red eye pigments of T. infestans were similar to each other and to that of the wild-type eyes of D. melanogaster. The similarity to the wild fo...

T two best candidate species for truffle cultivation in the south-central U.S. are the Burgundy truffle (Tuber aestivum Vitt., syn. T. uncinatum Ch., Fig. 1a) and the Périgord black truffle (T. melanosporum Vitt., Fig. 1b). These common names (Burgundy truffle and Périgord black truffle) are derived from the names of two of the many regions in France where they are famous. Though native to Euro...

Onattukara sandy loam tract an important agro ecological zone spread over the Karunagapally taluk of Kollam and Karthikapally and Mavelikara taluks of Alappuzha districts of Kerala. The soils are highly permeable, acidic in reaction and are extremely deficient in all the major plant nutrients. Sesamum is mainly grown in Kerala as a sole crop in the summer rice fallows of Onattukara tract. The c...

In vitro studies with Trichoderma spp., soil-borne fungal antagonists, demonstrated that a number of isolates produced volatile and non-volatile metabolites capable of inhibiting the growth and sporulation of several soil-borne plant pathogenic fungi. Microscopic observations showed that T. harzianm and T. viride, isolated from soil samples from Ahwaz and Karaj, adversely affected the myce...