By comparing reaction cells sealed from the same manifold temperature dependency corresponding to activation energies ranging from 11 to 18 Af was observed while dependence on the first power of the light intensity seemed to be indicated in most cases.

By comparing the form of several yupanas, researchers found that calculations were based using the Fibonacci sequence 1, 1, 2, 3, 5 and powers of 10, 20 and 40 as place values for the different fields in the instrument.

By comparing Arithmetic and Geometric mean of numbers

By comparing the length and intensity of various methods of therapies, it was proven that intensity is a better predictor of recovery than the method of therapy used.

By comparing different embryonic stages of different vertebrate species, he formulated the Recapitulation theory.

By comparing the parts of the genome that are not under natural selection and which therefore accumulate mutations at a fairly steady rate, it is possible to reconstruct a genetic tree incorporating the entire human species since the last shared ancestor.

By comparing mitochondrial DNA which is inherited only from the mother, geneticists have concluded that the last female common ancestor whose genetic marker is found in all modern humans, the so-called mitochondrial Eve, must have lived around 200, 000 years ago.

By comparing the genome compositions between genomes, scientists can better understand the evolutionary history of a given genome.

By comparing the relative positions of the moon and Mars with their anticipated positions, Vespucci was able to crudely deduce his longitude.

Soon however, Marl's records became more sample heavy, as can be seen by comparing the MC Shan LPs Down By Law ( 1987 ) and Born to be Wild ( 1988 ); the rhythms less electronic, with drum samples and patterns becoming more prominent.

By comparing the different natural languages, scholars hope to learn something about the nature of human intelligence and the innate biases and constraints that shape natural language, which are sometimes called universal grammar.

By comparing the times of the eclipses, the difference in longitude of Paris to Uranienborg was calculated.

By comparing the photographic plates of the Pleiades cluster taken in 1918 with images taken in 1943, van Maanen was able to identify those stars that had a proper motion similar to the mean motion of the cluster, and were therefore more likely to be members.

By comparing skulls of different ethnic groups it supposedly allowed for ranking of races from least to most evolved.

By measuring the frequency of the returned signal and comparing that with the original, the difference can be easily measured.

By comparing the spectra of stars such as Sirius to the Sun, they found differences in the strength and number of their absorption lines — the dark lines in a stellar spectra due to the absorption of specific frequencies by the atmosphere.

By monitoring vegetation changes over time, droughts can be monitored by comparing the current vegetation state to its long term average.

By instead comparing the radiated power in a given direction to the actual power that the antenna receives from the transmitter, the power gain takes into account that poorer efficiency, making it a more useful figure of merit for the ability of a transmitter in sending a radio wave toward a receiver.

By expanding the left hand side and then comparing the real and imaginary parts under the assumption that x is real, it is possible to derive useful expressions for cos ( nx ) and sin ( nx ) in terms of cos x and sin x.

By comparing the arrival times of gamma showers with the separations of the spacecraft, a location can be determined, for follow-up with other telescopes.

By comparing this with the account of stupteria given by Dioscorides in the 123rd chapter of his 5th book, it is obvious that the two are identical.

* 1862 – By analysing the spectroscopic signature of the Sun and comparing it to those of other stars, Father Angelo Secchi determines that the Sun is itself a star.

By counting numbers of live and dead mites that developed every 15 days and comparing this with his initial count on the infant, he was able to estimate how long that infant was dead.

By writing as a Laurent series and explicitly comparing terms, one may verify that it satisfies the relation

By 1989 the political spectrum had widened, and new parties were formed and re-formed almost daily.

By varying the monochromator's wavelength setting, the full spectrum can be measured.

By making measurements of the signal at many discrete positions of the moving mirror, the spectrum can be reconstructed using a Fourier transform of the temporal coherence of the light.

By analysing the spectrum of the chromosphere, it was found that the temperature of this layer of the solar atmosphere increases with increasing height in the chromosphere itself.

By late 1966, Davies was addressing the bleakness of life at the lower end of the social spectrum: released together as the complementary A-B sides of a single, " Dead End Street " and " Big Black Smoke " were powerful neo-Dickensian sketches of urban poverty.

By that time, the foundation's collection included a broad spectrum of expressionist and surrealist works, including paintings by Paul Klee, Oskar Kokoschka and Joan Miró.

By measuring the energies and three-momenta of the daughter particles, one can reconstruct the invariant mass of the two-particle system, which must be equal to M. This technique is used, e. g., in experimental searches for Z ' bosons at high-energy particle colliders, where the Z ' boson would show up as a bump in the invariant mass spectrum of electron-positron or muon-antimuon pairs.

By regularly looking at the spectrum of a star-and so, measure its velocity-one can see if it moves periodically due to the influence of a companion.

By 1970, many groups from opposite sides of the political spectrum had come to support Perón, from the left-wing and Catholic Montoneros to the fascist-leaning and strongly anti-Semitic Movimiento Nacionalista Tacuara, one of Argentina's first guerrilla movements.

By using state of the art coding and modulation techniques, DVB-C2 should offer greater than 30 % higher spectrum efficiency under the same conditions, and the gains in downstream channel capacity will be greater than 60 % for optimized HFC networks.

By assuming that the reflectivity is white, we can assume that the power spectrum of the reflectivity is constant, and that the power spectrum of the seismogram is the spectrum of the wavelet multiplied by that constant.

By stacking several cells with different sized rods, a broad range of wavelengths across the solar spectrum can be collected and converted to energy.

By comparing the attenuation of the transmitted light with the incident, an absorption spectrum can be obtained.

By discarding the phase information it is possible to simplify the information in a frequency domain representation to generate a frequency spectrum or spectral density.

By March 1920, Strasser's Freikorps was ready to participate in the failed Kapp Putsch, whereas his brother Otto had turned to the left of the political spectrum and commanded the Rote Hundertschaft, a socialist paramilitary group, to combat this right-wing coup d ' état.

By measuring these properties from a star's spectrum, the position of a main sequence star on the H-R diagram can be determined, and thereby the star's absolute magnitude estimated.

By contrast, a xenon arc has a continuous emission spectrum with nearly constant intensity in the range from 300-800 nm and a sufficient irradiance for measurements down to just above 200 nm.

By absorbing UV rays in the blue-purple spectrum, pigments filter intense sunlight and thereby have a role assuring regeneration of the species.

By carrying out this quantization and calculating the eigenvalues of the Casimir operator for the Kepler problem, Wolfgang Pauli was able to derive the energy levels of hydrogen-like atoms ( Figure 6 ) and, thus, their atomic emission spectrum.

By examining only the varying part of the absorption spectrum ( essentially, subtracting minimum absorption from peak absorption ), a monitor can ignore other tissues or nail polish, ( though black nail polish tends to distort readings ) and discern only the absorption caused by arterial blood.

By bringing together capital markets insights, manager research, strategic asset allocation, portfolio implementation and indexing, Russell is able to deliver the full spectrum of investment strategies and asset classes to help investors achieve outcomes.

By the end of the century, a spectrum of complementary currencies had emerged.