نتایج جستجو برای: spectral changes
تعداد نتایج: 1024774 فیلتر نتایج به سال:
OBJECTIVE The current study examined a 5-year cognitive change in untrained African American and White participants from the Advanced Cognitive Training in Independent and Vital Elderly (ACTIVE) study. METHOD Five-year trajectories of memory, reasoning, visual processing speed/useful field of view, digit-symbol substitution, and vocabulary were investigated. Education, health, gender, age, an...
Using three waves of data, we assessed the relationships between endorsement of religious values, some of the major personality dimensions, and social and emotional well-being amongst teenagers. Participants were 784 high school students at Time 1 (382 males and 394 females; 8 did not indicate their gender) and 563 provided data at each of Time 1, Time 2 and Time 3. We examined the impact of ch...
Light is a fundamental resource for phytoplankton. To utilize the available light, most phytoplankton species possess pigments in taxon-specific combinations and quantities, which turn result specific use of certain wavelengths. This optimizes light efficiency, allows complementary may be an additional driver community structure. While effects intensity on biomass production composition have be...
spectral decomposition of time series has a significant role in seismic data processing and interpretation. since the earth acts as a low-pass filter, it changes frequency content of passing seismic waves. conventional representing methods of signals in time domain and frequency domain cannot show time and frequency information simultaneously. time-frequency transforms upgraded spectral decompo...
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