Results 1 to 10 of about 3,152,770 (169)

Studies on Tumor Variability

Oncology, 1971
This paper presents the results of morphological and genetical investigations on H10Z tumor short term tissue cultures, revealing the following peculiarities of the tumor cell population: 1. Heterogenous structure, that is, various cell types with certain morphological and genetical characters. 2.
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Neural Network Studies. 2. Variable Selection

Journal of Chemical Information and Computer Sciences, 1996
Quantitative structure-activity relationship (QSAR) studies usually require an estimation of the relevance of a very large set of initial variables. Determination of the most important variables allows theoretically a better generalization by all pattern recognition methods.
I V, Tetko, A E, Villa, D J, Livingstone
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Variability of repeated nerve conduction studies

Electroencephalography and Clinical Neurophysiology/Evoked Potentials Section, 1991
We have determined the variability of repeated measurements of sensory nerve action potential (SNAP) and compound muscle action potential (CMAP) amplitude and motor and sensory conduction velocity (MCV and SCV) and examined the extent to which limb temperature is responsible for the variability. We made 10 serial measurements of SNAP, CMAP, MCV and SCV
A F, Bleasel, R R, Tuck
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Global study of variability in olfactory sensitivity.

Behavioral Neuroscience, 2020
Variability in human olfactory sensitivity has been attributed to individual-level factors such as genetics, age, sex, medical history of infections and trauma, neurogenerative diseases, and emotional disorders. Scarce evidence exists on the cross-cultural variation in olfactory sensitivity.
Anna Oleszkiewicz, Rafieh Alizadeh, Aytug Altundag, Ben Chen, Alessandra Corrai, Rachele Fanari, Mohammad Farhadi, Neelima Gupta, Rebecca Habel, Robyn Hudson, Jessica L. Hughes, Akshita Joshi, Seyed Kamran Kamrava, Curtis Luckett, Mehmet K. Mahmut, Carla Masala, Eri Mori, Robert Pellegrino, Raffaella Piras, Katarzyna Resler, Alejandro Rivas-Castro, Supreet Saluja, Sanskriti Sharma, Hajime Shimmura, Graciela M. Soler, Michał Mikołaj Stefańczyk, Zhifu Sun, Divesh Thaploo, Yongxiang Wei, Xiaoguang Yan, Thomas Hummel   +30 more
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Preterm delivery variables — Descriptive epidemiologic study

International Journal of Gynecology & Obstetrics, 2000
Objectives The aim of the study was to investigate epidemiologic variables influencing preterm delivery. Study Methods In the 6-year period from 1993 - 1998 all preterm deliveries from 22nd to 37th week of gestation were analyzed. Multiple pregnancies and stillbirth were excluded.
Mamula, Ozren, Frković, Aleksandra, Ćuk, Đuro, Stojanović, Dražen   +3 more
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Demographic variables, smoking variables, and outcome across five studies.

Health Psychology, 2007
Intervention effectiveness can potentially be affected by membership in different demographic subgroups (race, ethnicity, gender, age, and education level) or smoking behavior variables (time to first cigarette, longest previous quit attempt, number of attempts in the past year, number of cigarettes, and stage of change).
Velicer, Wayne F., Redding, Colleen A., Sun, Xiaowu, Prochaska, James O.   +3 more
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Crossover Studies with Continuous Variables: Power Analysis

American Journal of Therapeutics, 2002
The crossover design is a sensitive means of determining the efficacy of new drugs because it eliminates between-subject variability. However, if the response in the first period carries on into the second (carryover effect) or if time factors cannot be kept constant in a lengthy crossover (time effects), its statistical power may be jeopardized.
Cleophas, T. J. M., Zwinderman, A. H.
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