Results 41 to 50 of about 317,567 (258)

Coordinate free integrals in Geometric Calculus

, 2016
We introduce a method for evaluating integrals in geometric calculus without introducing coordinates, based on using the fundamental theorem of calculus repeatedly and cutting the resulting manifolds so as to create a boundary and allow for the existence
Alho, Timo
core   +1 more source

225 Jahre UV‐Strahlung – Die Rekonstruktion des Ritter‐Experiments (1801) für Schule und Hochschule

CHEMKON, EarlyView.
Am 22. Februar 1801 gelang Johann Wilhelm Ritter in Jena der experimentelle Nachweis einer unsichtbaren Strahlung jenseits des violetten Bereichs des sichtbaren Spektrums. Als Indikator nutzte er die photochemische Schwärzung von Hornsilber (Silberchlorid) und erbrachte damit erstmals einen indirekten experimentellen Nachweis der ultravioletten ...
Tom Wagner, Holger Cartarius, Timo Mappes   +2 more
wiley   +1 more source

Enemy release: loss of parasites in invasive freshwater bivalves Sinanodonta woodiana and Corbicula fluminea

Ecography, EarlyView.
Invasive freshwater bivalves harm native species, ecosystems and biodiversity, and incur economic costs. The enemy release hypothesis posits that invasive species are released from enemies during the invasion process, giving them a competitive advantage in the new environment.
Binglin Deng, Nicoletta Riccardi, Pin Nie, Maria Urbańska, Timo J. Marjomäki, Wojciech Andrzejewski, Małgorzata Ożgo, Keiko Nakamura, Jouni Taskinen   +8 more
wiley   +1 more source

Determination of fetal thymic morphometric dimensions in relation to gestational age.

Medisur, 2010
Background: the appropriate relationship between gestational age and fetal weight are variables that reflect the intrauterine development and fetal welfare.
Carmen Niurka Piña Loyola, Marta Rosa González Debén, Alfredo Quiñonez Ceballo   +2 more
doaj   +2 more sources

Morphometric analysis of the thymus of puppies infected with the Snyder Hill Strain of canine distemper virus Análise morfométrica do timo de cães filhotes infectados com a amostra Snyder Hill do vírus de cinomose canina

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2006
The thymic morphometry analysis was used for determining apoptosis and atrophy of the thymus of eight puppies inoculated with canine distemper virus (CDV). Three healthy dogs were used as negative controls.
C.M. Alves, A.C. Vasconcelos, A.S. Martins, H.L. del Puerto, F.G.A. Santos, J.E.S. Nunes, P.P. Campos, L. Moro   +7 more
doaj   +1 more source

The IceCube neutrino observatory: Status and initial results

, 2010
The IceCube collaboration is building a cubic kilometer scale neutrino telescope at a depth of 2 km at the geographic South Pole, utilizing the clear Antarctic ice as a Cherenkov medium to detect cosmic neutrinos.
Karg, Timo
core   +1 more source

Hidden Selection Rules, M5-instantons and Fluxes in F-theory [PDF]

, 2015
We introduce a new approach to investigate the selection rules governing the contributions of fluxed M5-instantons to the F-theory four-dimensional effective action, with emphasis on the generation of charged matter F-terms.
Martucci, Luca, Weigand, Timo
core   +1 more source

A Comparison of Realized Measures of Integrated Volatility: Price Duration‐ vs. Return‐Based Approaches

Journal of Forecasting, EarlyView.
ABSTRACT We study the accuracy of a variety of parametric price duration‐based realized variance estimators constructed via various financial duration models and compare their forecasting performance with the performance of various nonparametric return‐based realized variance estimators.
Björn Schulte‐Tillmann, Mawuli Segnon, Timo Wiedemann   +2 more
wiley   +1 more source

Expressão gênica de caspases 3 e 8 em timo e baço de ratas recém-desmamadas e imunossuprimidas por glicocorticóide Genic expression of caspases 3 and 8 in thymus and spleen of glicocorticoid-immunossupressed weaned rats

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2005
Determinou-se a expressão gênica das caspases 3 e 8 mediante transcrição reversa de mRNA total e reação em cadeia da polimerase (RT-PCR) para avaliar a apoptose em timo e baço de ratas imunossuprimidas por glicocorticóides.
J.J. Batista, A.S. Martins, L. Moro, A.C. Vasconcelos   +3 more
doaj   +1 more source

Bryophyte flora of Western Melanesia [PDF]

, 1990
A project dealing with the hepatic and moss floras of New Guinea and the Solomon Islands has proceeded more than halfway. The revision of the flora is based on the study of ca 17000 specimens collected in 1981.
Koponen, Timo
core