نتایج جستجو برای: mineralogical changes

تعداد نتایج: 875965  

2009
WALTER E. DEAN MICHAEL A. ARTHUR

The Cretaceous Western Interior Seaway Drilling Project was begun in 1991 under the auspices of the U.S. Continental Scientific Drilling Program. It was intended to be a multidisciplinary study of Cretaceous carbonate and silicicl.tic rocks in cores from bore holes along a transect across the Cretaceous Western Interior Seaway. The study focuses on middle Cretaceous (Cenomanian to Campanian) st...

ژورنال: سلامت و محیط زیست 2017

Background and Objective: The aim of this study was to investigate the physico-chemical properties, size distribution and shape of the falling mineral dusts over Masjed Soleyman and to identify their origins. Also, seasonal and annual variations of climatic parameters and their relation with dust storm occurrence were investigated. Materials and Methods: The collected samples were as result ...

2004
G. Cultrone

The paper studies the effect of additives such as calcite, dolomite and sodium chloride on the mineralogical–textural and physical–mechanical behaviour of solid bricks destined for use as new materials in the restoration of historic buildings. The behavioural differences between specimens with and without carbonates can be explained by the different evolution of texture and mineralogical compos...

Journal: :Intelligence 2012
Timothy A Salthouse

Longitudinal change in five cognitive abilities was investigated to determine if the direction or magnitude of change was related to the individual's ability level. Adults between 18 and 97 years of age performed three versions of 16 cognitive tests on two occasions separated by an average of 2.7 years. In order to control for influences associated with regression toward the mean, level of abil...

Journal: :Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists 2010
Kevin Duff Leigh J Beglinger David J Moser Jane S Paulsen Susan K Schultz Stephan Arndt

Assessing cognitive change in older adults is a common use of neuropsychological services, and neuropsychologists have utilized several strategies to determine if a change is "real," "reliable," and "meaningful." Although standardized regression-based (SRB) prediction formulas may be useful in determining change, SRBs have not been widely applied to older adults. The current study sought to dev...

Journal: :Developmental psychology 2015
Timothy Salthouse

It is widely recognized that experience with cognitive tests can influence estimates of cognitive change. Prior research has estimated experience effects at the level of groups by comparing the performance of a group of participants tested for the second time with the performance of a different group of participants at the same age tested for the first time. This twice-minus-once-tested method ...

Journal: :Journal of the American Psychoanalytic Association 2011
Jule Specht Boris Egloff Stefan C Schmukle

Does personality change across the entire life course, and are those changes due to intrinsic maturation or major life experiences? This longitudinal study investigated changes in the mean levels and rank order of the Big Five personality traits in a heterogeneous sample of 14,718 Germans across all of adulthood. Latent change and latent moderated regression models provided 4 main findings: Fir...

2014
Pertti Lamberg

Majority of the process mineralogical studies can be described as optimization problems where conditions for the best economic and most resource efficient processing are sought. For solving such a problem the raw process mineralogical data is not enough; optimal solution can be found only through modelling and simulation. Automated mineralogy provides accurate and detailed information on proces...

2014
E. D. Steer S. P. Schwenzer

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