Endoribonuclease splitting single-stranded poliovirus RNA is associated with virions of the myxoviruses fowl plague virus and Newcastle disease virus. These virions are devoid of deoxyribo­ nuclease hydrolyzing single-stranded M 13 phage DNA and ribonuclease hydrolyzing double­ stranded poliovirus RNA. The latter enzyme, however, is present in allantoic fluids of infected chick embryos from whi...

The theme "Sample identification" was last discussed at the international meeting "Biochemische Analytik 78". At that time it was stated that publications dealing with sample identification are relatively few and in recent years there have been no important innovations in this field. This statement is valid today with one exception: in the new edition of the well-known book by R. Haeckel "Ratio...

The problem of antibiotic resistance in bacterial pathogens is a problem in genetic ecology. For the past half century, microbes have been exposed to enormous quantities of toxic agents (antibiotics) and they have survived. The principal survival strategy employed was the functional acquisition and horizontal transfer of antibiotic resistance genes. It is apparent that the genetic mechanisms in...

1 We gratefully acknowledge the support of the Social Science and Humanities Research Council of Canada, in the form of grants to both authors, for the projects of which this research forms part. We thank Elisabeth Godfrey, who collected the Devon English data from the rural areas surrounding her home town Tiverton, mid Devon, for granting us access to her corpus. For further information about ...

OBJECTIVE This non-systematic review discusses the available evidence on the use of flavoxate in the treatment of overactive bladder (OAB). METHODS Medline was searched for inclusion of relevant studies. No limitations in time were considered. RESULTS Flavoxate hydrochloride is an antispasmodic agent which exerts an inhibition of the phosphodiesterases, a moderate calcium antagonistic activ...

PRESENT-DAY PSYCHOLOGY. A. A. Roback, Editor, with the collaboration of forty experts in the variouis fields. New York, Philosophical Library. 1955. xiv, 995 pp. $12.00. In this volume an attempt is made to survey the entire field of contemporary psychology, incltudinig not only the traditional topics of academlic psychological interest, such as perception, cognition, attention, emotionl, etc.,...

PRESENT is proposed by A.Bogdanov et al. in CHES 2007 for extremely constrained environments such as RFID tags and sensor networks. In this paper, we find out the differential characteristics for r-round(5 ≤ r ≤ 15), then give the differential cryptanalysis on reduced-round variants of PRESENT. We attack 16-round PRESENT using 2 chosen plaintexts, 2 6-bit counters, and 2 memory accesses.

OBJECTIVE To investigate commonalities in the clinical presentation of melancholia over time. METHOD I conducted a comparative study to 2 epidemiologically complete databases from 1875-1924 and 1995-2005. RESULTS Patients in the historical period (1875-1924, compared with 1995-2005) with a diagnosis of melancholia show a classic profile of endogenous onset, with remission after 6 months, ne...

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