Much of the prior research on interorganizational learning has focused on the role of absorptive capacity, a firm’s ability to value, assimilate, and utilize new external knowledge. However, this definition of the construct suggests that a firm has an equal capacity to learn from all other

capac-ity for (primary) representation, creating a capacity for metarepresentation. It is this, developing toward the end of infancy, that underlies the child's new abilities to pretend and to understand pretense in others. There is a striking isomorphism between the three fundamental forms

Although the thymus gland has been known from antiquity, its role in the body economy has remained enigmatic until recently. During the past year, however, a flurry of reports have given the first indications of the role of this organ in developmental biology. In mammals the thymus develops from the third and fourth pharyngeal pouches in early embryonic life, reaches maximal relative size near the time of birth, and then undergoes a gradual involution. In man the thymus appears in the 10 mm embryo, reaches maximal relative size in the neonate, attains maximal absolute size in the 12-year-old child, and then..... gradually decreases in relative and absolute size as maturity is reached (1). Our interest in the thymus developed in 1953 when we (2, 3) discovered that a patient with "acquired agammaglobulinemia " had developed a marked immunologic deficiency and an abnormality of the thymus--a benign thymoma--at about the same time. Removal of the thymoma, which was primarily an epithelial stromal overgrowth of the thymus pathologically, failed to alter either the protein abnormality or the immunologic defect. Since that time seven cases of the combined occurrence of these

that reasoning in these tasks may be rational rather than subject to systematic bias. Over the past 30 years, results in the psychology of reasoning have raised doubts about human rationality. The assumption of human rationality has a long history. Aristotle took the capacity for rational thought

-DNA interaction and weak glue-like interaction between regulatory proteins, we show explicit schemes to implement regulatory logic functions of increasing complexity by appropriately selecting the strengths and arranging the relative positions of the relevant protein-binding DNA sequences in the cis

propositions are constrained such that at most N, or exactly M, can hold at any moment in time. This paper describes both the logical basis and a verification method for propositional linear time temporal logics which allow such constraints as input. The method incorporates ideas developed earlier for a

provides quantifiable assessments of outcomes under uncertainty and has gone a long way to explain human and animal decision making, even though more recent data cast doubt on the logic in some decision situations A Call for Behavioral Theory Primary sensory systems have dedicated physical and chemical

We propose an extension principle for fuzzy logic to obtain a Boolean logic able to manage incomplete and partially inconsistent information. Such a logic is strictly related with an extended notion of belief measure. The aim is to give suitable tools to design expert systems able to manage

and for increased routing demand due to time-multiplexing the hardware. Background This paper reports on architecture development project that began in 1991. The architecture builds on the work of Ong [1995], who proposed rapidly reconfiguring an FPGA to increase logic capacity. Bhat [ 19931, DeHon [ 19951 and Tau

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