BACKGROUND During early development, neural circuits fire spontaneously, generating activity episodes with complex spatiotemporal patterns. Recordings of spontaneous activity have been made in many parts of the nervous system over the last 25 years, reporting developmental changes in activity patterns and the effects of various genetic perturbations. RESULTS We present a curated repository of...

The theoretical background to the automated detection of plagiarism and collusion is investigated in this paper. We examine the underlying concepts, and see how features of language can be exploited to produce an effective system. Independently written texts have markedly different characteristics to those that include passages that have been fully or partially copied, and they can be effective...

The concern of the emergence of a pandemic influenza virus has sparked an increased effort toward the development and testing of novel influenza antivirals. Central to this is the animal model of influenza infection, which has played an important role in understanding treatment effectiveness and the effect of antivirals on host immune responses. Among the different animal models of influenza, f...

The Ferret copy detector has been used for some years on English texts to find plagiarism in large collections of students’ coursework. This article reports on extending its application to Chinese. Corpora of coursework from two Chinese universities have been collected, and our experiments show that the Ferret can find both artificially constructed plagiarism and also actually occurring, previo...

Allied health professionals play an integral role in providing safe, affordable care to communities in need. Laws that define the permissible scope of practice for these professionals may take full advantage of these providers and may unnecessarily restrict safe and effective care. Nurse practitioners in many states may provide care independent of a physician; research reveals that this care is...

We have measured the amount of cortical space activated by differently oriented gratings in 25 adult ferrets by optical imaging of intrinsic signal. On average, 7% more area of the exposed visual cortex was preferentially activated by vertical and horizontal contours than by contours at oblique angles. This anisotropy may reflect the real-world prevalence of contours in the cardinal axes and co...

The incorporation of tetraoxolene radical bridging ligands into a microporous magnetic solid is demonstrated. Metalation of the redox-active bridging ligand 2,5-dichloro-3,6-dihydroxy-1,4-benzoquinone (LH2) with Fe(II) affords the solid (Me2NH2)2[Fe2L3]·2H2O·6DMF. Analysis of X-ray diffraction, Raman spectra, and Mössbauer spectra confirm the presence of Fe(III) centers with mixed-valence ligan...

The ferret has become a model animal for studies exploring the development of the visual system. However, little is known about the receptive-field structure and response properties of neurons in the adult visual cortex of the ferret. We performed single-unit recordings from neurons in layer 4 of adult ferret primary visual cortex to determine the receptive-field structure and visual-response p...

The current shortfall in effectiveness within conservation biology is illustrated by increasing interest in "evidence-based conservation," whose proponents have identified the need to benchmark conservation initiatives against actions that lead to proven positive effects. The effectiveness of conservation policies, approaches, and evaluation is under increasing scrutiny, and in these areas mode...