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Rhythmic bands

The vein is composed of rhythmic banding of quartz layers and fine-grained sulfides such as argentite, acanthite, sphalerite, galena, pyrite and chalcopyrite, and elec-trum. The principal gangue minerals are quartz, calcite, adularia and interstratified chlorite/smectite. Minor minerals are inesite, johansenite, xonotlite and sericite. These gangue minerals except for quartz, adularia, calcite and sericite are not found in the wall rocks. [Pg.103]

The spontaneous electrical activity of the brain can be measured by electroencephalography (EEG), a technique that has been widely employed to study neurotoxic effects of chemicals both in humans and in experimental animals. EEG waves represent summated synaptic potentials generated by the pyramidal cells of the cerebral cortex (Misra 1992). These potentials are the responses of cortical cells to rhythmical changes arising from thalamic nuclei. The signals recorded can be separated into frequency bands—faster waves exceeding 13 Hz, and slower ones below 4 Hz. [Pg.305]

Type II mineralization is replacement type mineralization occurring in the fragmental tops of mafic flows, within the Sunnyside Formation near its lower contact with the Archibald Settlement Formation. Type II Veins and veinlets are commonly intricately banded with zones of early rhythmically-layered amorphous silica and later sulfide commonly displaying framboidal textures. [Pg.513]

Hardin From your ROR EMS A experiments it still looked like it was rhythmic even though there was no band shift for REV-ERBa. Is this an ROR that is itself rhythmic ... [Pg.100]

In the Drosophila circadian clock, three proteins are rhythmically phosphorylated throughout the circadian cycle PER, TIM and dCLK. The electrophoretic mobility of these three proteins all undergo changes during the circadian day by Western analysis. In all cases, phosphatase treatment reduced or eliminated the slower migrating bands, suggesting that the mobility shifts are due to phosphorylation (Edery et al 1994, Zeng et al 1996, Lee et al 1998). While there is evidence that DBT phosphorylates PER and SGG phosphorylates TIM, it is possible that other kinases phosphorylate these proteins as well. TIM, for instance, is phosphorylated by a tyrosine kinase before it is ubiquitinated and... [Pg.273]

Actually, however, at least for an isolated XH Y system, the change in length of the H-bonds occurs rhythmically with the frequency of the v(XH Y) vibration. In effect the vKK vibration is frequency modulated by the v(XB. Y) vibration. From a consideration of this more precise classical picture Batuev [29, 30] has shown that the broad band should actually consist of a series of sub-bands of frequencies rXH (XH Y). This is the frequency modulation theory of the origin of the broad vXH bands. This explanation also implies that the band should become narrow at low temperatures when the amplitude of the H-bond stretching vibration is small. [Pg.91]

Infrared absorption can occur as a result of both vibrational and rotational transitions within the molecule. However, vibrational absorption bands are of greater practical interest as they are more easily measured, and because only relatively few compounds exhibit pure rotational transitions. Two types of molecular vibrations are of importance stretching and bending. A stretching vibration is a rhythmical movement along the bond axis, such that the interatomic distance is increased and decreased. [Pg.98]

Making inadequate assumptions is another way hazards get introduced. Assuming that a load is static when it is really dynamic may result in failure. For example, football stands may not be capable of rhythmic loading as the crowd sways and stomps to the music of the band. Someone may make bad assumptions by failing to get accurate data from the literature, user testing, or speciahsts. One may assume that users will operate a product one way and not anticipate other uses. Designers may fail to envision some misuses. [Pg.89]

Nl-Spektral Delay sports edit graphs and functions to set up the delay times and feedback levels for the bands each of the up to 160 bands per stereo channel can be delayed separately and fed back to the delay input with an individual amount. The delay times can be set freely or according to a rhythm via a selectable note grid. The maximum delay time is 12 seconds. The effects achievable with this band delay include interesting subtle colorings as well as rhythmic courses of the partial tones and superb dense, atmospheric sound textures. [Pg.207]


See other pages where Rhythmic bands is mentioned: [Pg.457]    [Pg.171]    [Pg.65]    [Pg.66]    [Pg.411]    [Pg.457]    [Pg.171]    [Pg.65]    [Pg.66]    [Pg.411]    [Pg.911]    [Pg.911]    [Pg.24]    [Pg.24]    [Pg.41]    [Pg.244]    [Pg.818]    [Pg.402]    [Pg.173]    [Pg.38]    [Pg.84]    [Pg.256]    [Pg.4957]    [Pg.117]   
See also in sourсe #XX -- [ Pg.171 ]




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