We present a collection of algebraic equivalences between tautological cycles on the Jacobian J of a curve, i.e., cycles in the subring of the Chow ring of J generated by the classes of certain standard subvarieties of J . These equivalences are universal in the sense that they hold for all curves of given genus. We show also that they are compatible with the action of the Fourier transform on ...

A metal-free 16-membered N4-donor [1 + 1] Schiff-base macrocycle was isolated as HL(Pr)·2acid, by 1 : 1 condensation of diphenylamine-2,2'-dicarboxaldehyde (1), dipropylene triamine and an excess of either acetic or formic acid, or as HL(Pr)·(tosylic acid) when just one equivalent of tosylic acid was employed. Interestingly, the acid-free synthesis employed for the 14-membered analogue HL(Et) f...

OBJECTIVE We sought to compare cosmetic outcomes, complication rates, and patient/caregiver satisfaction of absorbable versus nonabsorbable sutures in children. METHODS Healthy patients, 1 to 18 years old, with facial lacerations 1 to 5 cm, were randomized to repair with fast-absorbing catgut (FAC) or nylon (NYL) sutures. Patients returned in 4 to 7 days and in 3 to 4 months, at which time ph...

In this paper, we investigate the necessary and sufficient conditions under which a class of nonlinear systems are state feedback equivalent to negative imaginary (NI) with positive definite storage functions. The interest have normal form relative degree less than or equal two. nonlinearity system is restricted respect subset variables, variables that external dynamics. Under mild assumptions,...

Cerebral palsy and death are serious consequences of perinatal hypoxia-ischemia (HI). Important concepts can now be tested using an animal model of cerebral palsy. We have previously shown that reactive oxygen and nitrogen species are produced in antenatal HI. A novel class of neuronal nitric oxide synthase (nNOS) inhibitors have been designed, and they ameliorate postnatal motor deficits when ...

This paper describes a study of excited-state properties of naphthalimide (NI) and four 4-substituted derivatives: 4-chloronaphthalimide (Cl-NI), 4-methylthionaphthalimide (MeS-NI), 4-nitronaphthalimide (O(2)N-NI), and 4-(N,N-dimethylaminonaphthalimide (Me(2)N-NI). Steady-state absorption and fluorescence spectra were collected in solvents of varying polarity to determine the excited-state char...

Five Ni-Cr alloys were studied in order to identify the compounds formed on the alloy surface during oxidation under conditions similar to those encountered during dental laboratory procedures prior to application ofporcelain. After the alloys were oxidized, the films covering the surfaces were removed with the aid of a Br-methanol solution. X-ray diffraction was used to analyze the compounds f...

According to the nullor-mirror descriptions of OTA, the NAM expansion method for three different types of KHN filters employing OTAs is considered. The type-A filters employing five OTAs have 32 different forms, the type-B filters employing four OTAs have 32 different forms, and the type-C filters employing three OTAs have eight different forms. At last a total of 72 circuits are received. Havi...

Ni-C/Ti are suitable for the components of neutron supermirrors with high reflectivity because their excellent optical constant and smoother interfaces compared to Ni/Ti. In this paper, investigate mechanism C doping interface, crystallization, composition a multilayer variable Ni-C thickness, four multilayers were prepared by direct current magnetron sputtering, in which thickness layers was 1...