In this article, a coplanar inverted-F antenna with an electronically controlled ground slot enabling reconfigurability is proposed. Initially a quarter wavelength coplanar inverted-F radiator is designed to operate at 900 MHz. To minimize its size, the radiator is folded to occupy an area of about 10 × 40mm2. Next, a ground slot is introduced to excite another resonance at around 1850 MHz with...

New information and computing technologies promise new virtual learning and communication opportunities within the real communities of health care professionals. The Assisted Electronic Communication project has been prototyping, administering and evaluating an integrated digital discourse, webcasting and digital newsletter system, for health care professionals within one such community an acut...

Vertical excitation energies in uracil in the gas phase and in water solution are investigated by the equation-of-motion coupled-cluster and multireference configuration interaction methods. Basis set effects are found to be important for converged results. The analysis of electronic wave functions reveals that the lowest singlet states are predominantly of a singly excited character and are th...

Electronically programmable memory devices utilizing molecular self-assembled monolayers are reported. The devices exhibit electronically programmable and erasable memory bits compatible with conventional threshold levels and a memory cell applicable to a random access memory is demonstrated. Bit retention times .15 min have been observed. © 2001 American Institute of Physics. @DOI: 10.1063/1.1...

Background:Electronically -Learning has created a new horizon in the world of education. The purpose of this is improving the quality of education and conserving (saving) time for teachers and students; this training can facilitate and strengthen the process of review. Since Mashhad University of Medical Sciences trains the applicants for family medicine as MPH virtually, we decided to study th...

Previous research describes phases in the design of electronically supported meetings from a temporal perspective. Yet the epistemological status of each phase has not been identified. It is proposed that the pre-meeting phase should be evaluated from a positivist orientation while the meeting itself should be evaluated from an interpretive orientation. Results are reported from a case study in...

Cation-exchangeable d(0) layered perovskites are amenable to intercalation, exfoliation, and a variety of topochemical reactions, but they lack the interesting electronic and magnetic functionalities of mixed-valent perovskites. Conversely, electronically and magnetically interesting layered perovskites lack scope in terms of interlayer chemistry. To bridge this gap, the insulating, cation-exch...

The provenance of entities, whether electronic data or physical artefacts, is crucial information in practically all domains, including science, business and art. The increased use of software in automating activities provides the opportunity to add greatly to the amount we can know about an entity’s history and the process by which it came to be as it is. However, it also presents difficulties...

The novel isoquinolin-1-ylidene ligands, introduced into Rh(I) complexes by exploiting the carbene-like reactivity of adducts , exhibit ligand properties similar to those of classic NHCs, and their electronic properties can be tuned by the introduction of electron-withdrawing or donating groups in the benzene ring.

New information and computing technologies offer cost efficient and effective learning opportunities for health care professionals. The Assisted Electronic Communication project is prototyping, administering and evaluating a digital discourse system for health care professionals within an acute Hospital. Health care staff participating in the study are able to access and contribute to threaded,...