second. The other ciliates studied obviously have a much lower speed of coordinating impulse. These values are so far below the velocities of true neural impulses that it is not possible to consider a "neuromotor" factor in the coordination of these Protozoa. Further investigations are in progress along the lines indicated here and will be reported in detail. The writer is indebted to Dr. W. M....

Duplogs, or intraspecies paralogs, constitute the important portion of eukaryote genomes and serve as a major source of functional innovation. We conducted detailed analyses of recently emerged animal duplogs. Genome data of three vertebrate species (Homo sapiens, Mus musculus, and Danio rerio), Caenorhabditis elegans, and two Drosophila species (Drosophila melanogaster and D. pseudoobscura) we...

It is well known that competitive analysis yields results that do not reflect the observed performance of online paging algorithms. Many deterministic paging algorithms achieve the same competitive ratio, ranging from inefficient strategies as flush-when-full to the well-performing leastrecently-used (LRU). In this paper, we study this fundamental online problem from the viewpoint of stochastic...

Several papers are discussed including the CARP (Coronary Artery Revascularisation Prophylaxis) trial, examining the role, if any, of preoperative coronary revascularisation and a study examining the heart rate in the intensive care unit (ICU) population. We also take a look at infections in the ICU with particular regard to a recent study which examined isolating patients with methicillin-resi...

A classification for advanced alveolar bone loss in children and adolescents is presented for the purpose of clarifying the oftentimes confusing terminology that presently exists. Page’s definiton of prepubertal periodontitis is advocated, and a representative case is presented. The classic definition of periodontosis is "a disease of the periodontium occurring in an otherwise healthy adolescen...

Studies of fetal hemoglobin and bone marrow ultrastructure were performed on a patient with a recently described syndrome consisting of lymphosarcoma, short stature, defective cellular Immunity, hypogammaglobulinemia, and mosaicism for a marker chromosome. Abnormalities of the erythroid cells, including multinucleated erythroblasts, nuclear bodies, megaloblasts, and frayed cytoplasm, were seen ...

OBJECTIVES We examined self-reported health among formerly incarcerated mothers. METHODS We used data from the Fragile Families and Child Wellbeing Study (n = 4096), a longitudinal survey of mostly unmarried parents in urban areas, to estimate the association between recent incarceration (measured as any incarceration in the past 4 years) and 5 self-reported health conditions (depression, ill...

The use of pharmacological agents in intensive care units (ICUs) is ever on the increase, with novel therapies appearing in the literature regularly. The complexities of polypharmacy are a challenge to the intensivist, and any guidance as to which drugs to use, when to use them and how much to use is always welcome. Happily, therefore, over the past 2 months a number of interesting papers and a...

Speech errors reflect linguistic knowledge. For example, phonological errors follow languagewide phonotactic constraints such as the fact that [h] must be an onset in English. We review five experimental studies that demonstrate that errors adhere to artificial experiment-wide constraints (e.g. [f] must be an onset during this experiment) as well as language-wide constraints. These studies show...

In this work we report spectrophotometric observations of a planetary nebula sample towards the galac-tic bulge. A total of 45 PNe was observed and their physical parameters (electron density and temperature) were derived. Ionic abundances were calculated using a three-level atom model and abundances were derived through ionisation correction factors. Results show low abundance objects at high ...