Recent studies have identified a complex intercellular communication network which maintains the balance of indeterminate and determinate cells at the plant apical meristem. The widespread presence of homologous regulatory genes indicates that 'stemness' arose before the evolutionary split between plants and animals.

Design Techniques for Fully Integrated Switched-Capacitor Voltage Regulators

In Spain, electrical industries do not charge the energy bill directly to the nal user, but they share the ownership of an enterprise (called R.E.E., Red El ectrica de Espa~ na) which gets all payments and then distributes them according to some complex criteria (amount of power generation of every company, number of customers, etc.) Recently, some of these companies have asked to redistribute ...

Information technology (IT) professionals are entrusted with the design, implementation, and operation of the information systems that support key business processes within organizations. Many organizational stakeholders such as management, investors, and regulators expect these professionals to act ethically, as these systems must accurately reflect all business activity. This expectation has ...

The arthropods display a wide range of morphological diversity, varying tagmosis, as well as other aspects of the body plan, such as appendage and cuticular morphology. Here we review the roles of developmental regulatory genes in the evolution of arthropod morphology, with an emphasis on what is known from morphologically diverse species. Examination of tagmatic evolution reveals that these ch...

The linear quadratic regulator problem for the second order evolution system with boundary controls is studied. Case that the input-to-state map is non-admissible is treated assuming that the system is exponentially stabilizable by the passive feedback. It is shown that the optimal control is of feedback form in terms of solution to the operator Riccati equation.

Responsive Regulation translated an ongoing academic debate about behavior orientation and regulatory enforcement into a synthetic framework. Yet ethnographic studies reveal that ambiguity pervades regulator–regulatee interactions and suggest that the reality of regulatory encounters may be too ambivalent to fit the picture of the regulatory “game” at the heart of Ayres and Braithwaite’s theory...