This paper highlights a number of unresolved theoretical issues that, it is argued, continue to impede the construction of a viable model of behavioural control in personality psychology. It is contended that, in order to integrate motivation, emotion, cognition and conscious experience within a coherent framework, two major issues need to be recognised: (a) the relationship between automatic (...

We use polarity reversal systematics from numerical dynamos to quantify the hypothesis that the modulation of geomagnetic reversal frequency, including geomagnetic superchrons, results from changes in core heat flux related to growth and partial collapse of the two seismically-imaged lower mantle superplumes. We parameterize the reversal frequency sensitivity from numerical dynamos in terms of ...

The purpose of this paper is to survey some recent results in the theory of “p-adic cohomology”, by which we will mean several different (but related) things: the de Rham or p-adic étale cohomology of varieties over p-adic fields, or the rigid cohomology of varieties over fields of characteristic p > 0. Our goal is to update Illusie’s beautiful 1994 survey [I] by reporting on some of the many i...

q 201 Earth pigments figure prominently in debates about signal evolution among later Homo. Most archaeologists consider such behavior to postdate ~300 Ka. To evaluate claims for Fauresmith and Acheulean pigments in South Africa’s Northern Cape Province, extending back 1.1 Ma (Beaumont and Bednarik 2013), we reexamined collections from Kathu Pan 1, Wonderwerk Cave, and Canteen Kopje. We report ...

vaccination has greatly improved human health. despite of all improvements in this field, there is not an efficient vaccine for many diseases, and of the available ones, some could not produce a long-term immunity. recently, there have been many researches on the applicability of nanostructures as an efficient system for vaccine delivery, and the initial results have been promising. their poten...

abstract background: childbirth is accompanied with enormous physical and emotional changes in mothers. anxiety is the most common problem among these patients. this study was aimed to determine the effect of the presence of trained husbands beside their wives during childbirth on their anxiety. materials and methods: in a randomized control trial, 84 primiparous women were enrolled in childbir...

objective(s): although viral vectors are considered efficient gene transfer agents, their board application has been limited by toxicity, immunogenicity, mutagenicity and small gene carrying capacity. non-viral vectors are safe but they suffer from low transfection efficiency. in the present study, polyallylamine (paa) in two molecular weights (15 and 65 kda) was modified by alkane derivatives ...