Pachystigmus Hellén, 1927 : a substitute name for Noserus Foerster, 1863 (Hymenoptera: Braconidae), not Noserus LeConte, 1862 (Coleoptera: Zopheridae)

By establishing the date of its first publication, Noserus Foerster, 1863 (Hymenoptera, Braconidae) is shown to be a junior primary homonym of Noserus LeConte, 1862 (Coleoptera, Zopheridae). The substitute name for Noserus Foerster is that of its subjective synonym, Pachystigmus Hellén, 1927 [type species: Pachystigmus nitidulus Hellén, 1927]. Other described species in the genus are: Pachystigmus facialis (Foerster, 1863) New Combination; P. similis (Szépligeti, 1896) New Combination, P. nitidulus Hellén, 1927, P. gigas (Tobias, 1964)New Combination, P. occipitalis (Belokobylskij, 1986) New Combination, P. olgensis (Belokobylskij, 1994) New Combination, and P. sculpturator (Belokobylskij, 1999) New Combination

Green’s Function for Lamb’s Problem and Rayleigh Wave Propagation in General Transversely Isotropic Materials1

Composite materials have gained considerable industrial importance, being widely applied e.g. in aerospace industries. The need for their proper testing in view of delaminations, inclusions and other defects has correspondingly stimulated the interest in describing wave propagation in such anisotropic media. In this study, Lamb’s problem of determining the disturbance resulting from a point source in a half-space [1] is investigated for the case of transversely isotropic (TI) symmetry, which is characteristic for unidirectional fiber composites and extruded metal-matrix composites, but also for fiber-textured columnar-grained steels. Using the dyadic and triadic full-space Green’s functions obtained previously in their 2d-space-time spectral representations [2], a corresponding representation of Green’s dyad for the half-space has been derived exploiting the boundary condition of the stress-free surface. The resulting dyadic function is the solution of the elastic wave equation with point forces applied at the surface or within the uniform half-space, the fiber orientation being variable. First numerical evaluations have been performed with respect to Rayleigh-surface wave propagation by determining the zeroes of the corresponding Rayleigh function, which is included in the analytical expressions. Resulting slowness and wave curves are presented for several materials. The work presented can be further applied, e.g., to determine Rayleigh wave directivity patterns for point sources on the half-space as well as to model laser-generated wave propagation in composites. Application in the field of seismic wave propagation is also possible

Improved underwater image enhancement algorithms based on partial differential equations (PDEs)

The experimental results of improved underwater image enhancement algorithms based on partial differential equations (PDEs) are presented in this report. This second work extends the study of previous work and incorporating several improvements into the revised algorithm. Experiments show the evidence of the improvements when compared to previously proposed approaches and other conventional algorithms found in the literature.Comment: 22 pages, 6 figure

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An integrative approach to the taxonomy of the crown-of-thorns starfish species group (Asteroidea: Acanthaster): A review of names and comparison to recent molecular dat

WHEN IS A NOMEN REALLY DUBIUM? TOWARD REAL STABILITY IN CHIRONOMID TAXONOMY THROUGH BETTER SYMBIOSIS WITH THE CLASSIC COLLECTIONS

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AN INDEX TO SELECTED SCIENTIFIC NAMES IN EDWARDS' (1929) MONOGRAPH ON BRITISH CHIRONOMIDAE

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Practice of sedation and analgesia in German intensive care units: results of a national survey

INTRODUCTION: Sedation and analgesia are provided by using different agents and techniques in different countries. The goal is to achieve early spontaneous breathing and to obtain an awake and cooperative pain-free patient. It was the aim of this study to conduct a survey of the agents and techniques used for analgesia and sedation in intensive care units in Germany. METHODS: A survey was sent by mail to 261 hospitals in Germany. The anesthesiologists running the intensive care unit were asked to fill in the structured questionnaire about their use of sedation and analgesia. RESULTS: A total of 220 (84%) questionnaires were completed and returned. The RAMSAY sedation scale was used in 8% of the hospitals. A written policy was available in 21% of hospitals. For short-term sedation in most hospitals, propofol was used in combination with sufentanil or fentanyl. For long-term sedation, midazolam/fentanyl was preferred. Clonidine was a common part of up to two-thirds of the regimens. Epidural analgesia was used in up to 68%. Neuromuscular blocking agents were no longer used. CONCLUSION: In contrast to the US 'Clinical practice guidelines for the sustained use of sedatives and analgesics in the critically ill adult', our survey showed that in Germany different agents, and frequently neuroaxial techniques, were used