bluuebunny/crossref_metadata_2025_split huggingface dataset:
Calydiscoides limae sp. nov. (Monogenea, Diplectanidae) from Pentapodus aureofasciatus (Perciformes, Nemipteridae) off New Caledonia
Authors: Justine Jean-Lou , Brena Pierpaolo 
Published: January 2009

AbstractCalydiscoides limae sp. nov. is described from the nemipterid Pentapodus aureofasciatus Russell, 2001 caught along the barrier reef off New Caledonia, South Pacific. The new species is characterised by its male copulatory organ, with a distal blade and a lateral spur, and its female sclerotised organ, with a sphere and a thin tube. Its lamellodiscs always have 7 concentric lamellae, with the 3 internal lamellae complete and the 4 peripheral lamellae progressively less and less complete; measurements of the angles occupied by the lamellae in numerous specimens showed that the lamellodisc structure shows little variation among individuals.
A new species of Dichelyne (Nematoda, Cucullanidae) parasitizing sciaenid fishes from off the South American Atlantic coast
Authors: Timi Juan , Lanfranchi Ana , Tavares Luiz , Luque José 
Published: January 2009

AbstractA new nematode species Dichelyne (Cucullanellus) sciaenidicola sp. nov. is described based on specimens collected from the Whitemouth croaker Micropogonias furnieri (Desmarest) and the Argentine croaker Umbrina canosai Berg, from coastal waters of Argentina and Brazil. These nematodes were firstly identified as D. (C.) elongatus (Törnquist, 1931), a commonly reported species from M. furnieri in South American Atlantic waters. However, other species of Dichelyne have so far been reported from this host in the same area, namely D. (C.) rodriguesi (Pinto, Fábio et Noronha, 1970), D. (C.) amaruincai (Freitas, Vicente et Ibañez, 1969) and D. (Dichelyne) micropogonii Pereira et Costa, 1996. A careful re-examination of these parasites, as well as of type specimens of all species reported from M. furnieri, revealed that these nematodes represented a new species. The new species is distinguished from most of its congeners by having papillae 5–7 and 9 forming a subventral line close to cloaca, this feature is shared with other 6 species [D. (C.) dichelyneformis (Szidat, 1950), D. (C.) fraseri (Baylis, 1929), D. (C.) abbreviatus (Rudolphi, 1819), D. (C.) adriaticus (Törnquist, 1931), D. (C.) minutus (Rudolphi, 1819) and D. (C.) mariajuliae Alarcos, Timi, Etchegoin et Sardella, 2006)], which are readily distinguished by their body size, spicules length, distribution patterns of other papillae and position of the excretory pore and deirids. Also, D. (C.) elongatus from Umbrina canariensis (Valenciennes) from West Africa is established as a new species Dichelyne (Cucullanellus) yvonnecampanae sp. nov.; D. (C.) amaruincai from Pacific waters is considered as a valid species, D. (D.) micropogonii is regarded as species inquirendae and D. (C.) rodriguesi is identified as Cucullanus sp.
Historical account of the two family-group names in use for the single accepted family comprising the “fish blood flukes”
Authors: Bullard Stephen , Jensen Kirsten , Overstreet Robin 
Published: January 2009

AbstractThe family-group name for the “fish blood flukes” is unstable, with both “Aporocotylidae Odhner, 1912” and “Sanguinicolidae von Graff, 1907” in use for the single family. Although “Sanguinicolidae von Graff, 1907” (or. Graff, 1907.) has been a widely-accepted family-group name for the fish blood flukes subsequent to Yamaguti’s 1954 and 1958 synoptical publications (“Systema Helminthum”), a critical examination of the relevant literature, much of it published in German during 1900 through 1926, reveals that “Aporocotylidae Odhner, 1912” is the earliest available family-group name for these flukes. The name Aporocotylidae, moreover, was in wide usage by alpha taxonomists before 1954 and by several authors between 1954 and the present time. We speculate that the recent long-standing uncertainty about the earliest available family-group name primarily stems from the (1) logistics of Ludwig von Graff’s tome published in 1904–1908, (2) bibliographic confusion between that work and another Graff work published in 1907 (both of which treat Sanguinicola but not Aporocotyle), (3) initial ambiguity regarding the phylogenetic relatedness of the first four aporocotylid species that were named, (4) lack of consensus on the status of Aporocotylidae and Sanguinicolidae and the genera included within them, and (5) misleading application of. Graff, 1907. to Sanguinicolidae by Poche in 1926, Fuhrmann in 1928, Yamaguti in 1954 and 1958, and subsequent review articles that treated fish blood flukes. Under the International Code of Zoological Nomenclature (ICZN, Article 8.3), “Sanguinicolidae” was not made available by Graff because he disclaimed the name in the same, and only, work wherein he used the name (ICZN, Article 8.3). Sanguinicolidae was first made available in 1926 by Poche, who referenced Graff’s 1907 work. Hence, “Poche, 1926” comprises the correct authority and date for that family-group name, not “von Graff, 1907” or “Graff, 1907”. Since we presently accept only a single family for all fish blood flukes and abide by the Principal of Priority (ICZN, Article 23), we herein regard Sanguinicolidae Poche, 1926 as a junior subjective synonym of Aporocotylidae Odhner, 1912.
Two new species of entobdelline skin parasites (Monogenea, Capsalidae) from the blotched fantail ray, Taeniura meyeni, in the Pacific Ocean, with comments on spermatophores and the male copulatory apparatus
Authors: Whittington Ian , Kearn Graham 
Published: January 2009

AbstractWe made a comparative anatomical study of entobdelline monogenean skin parasites from the blotched fantail ray, Taeniura meyeni (= T. melanospila) from public aquaria and fish-holding facilities distributed widely across the western Pacific Ocean. These facilities were located in Australia (Mooloolaba, southern Queensland; Cairns, northern Queensland), Taiwan and Japan. The capture localities of the aquarium fishes are unknown to us, with the exception of the individual fish from northern Queensland which came from Sudbury Reef, a local inshore reef. Entobdellines from southern Queensland differed morphologically from those from northern Queensland and Taiwan and the 2 new monogenean species are described and named Neoentobdella garneri sp. nov. and N. taiwanensis sp. nov., respectively. We determined that an entobdelline collected by Dyer and co-workers from a ray identified as T. melanospila (= T. meyeni) from an aquarium in Okinawa, Japan and identified by them as Entobdella squamula (Heath, 1902) Johnston, 1929 was misidentified and is tentatively assigned to N. taiwanensis sp. nov. The male copulatory organ of each new species resembles a penis, but evidence that these organs are eversible like a cirrus is presented. Caution is advised in deciding whether the male copulatory organs of capsalids may function as a penis or as a cirrus and we suggest that possession of a penis versus a cirrus may not necessarily indicate wide evolutionary divergence. In N. garneri, spermatophores consist of a sausage-shaped capsule and a long hollow stalk. A spermatophore received from a donor is anchored in the vagina by means of the stalk, with the capsule protruding outside the body.
Multifrequency Tympanometry in Neonatal Intensive Care Unit and Well Babies
Authors: Shahnaz Navid , Miranda Terence , Polka Linda 
Published: January 2009

Background: Conventional low probe tone frequency tympanometry has not been successful in identifying middle ear effusion in newborn infants due to differences in the physiological properties of the middle ear in newborn infants and adults. With a rapid increase in newborn hearing
screening programs, there is a need for a reliable test of middle ear function for the infant population. In recent years, new evidence has shown that tympanometry performed at higher probe tone frequencies may be more sensitive to middle ear disease than conventional low probe tone frequency
in newborn infants. Purpose: The main goal of this study was to explore the characteristics of the normal middle ear in the NICU (neonatal intensive care unit) and well babies using conventional and multifrequency tympanometry (MFT). It was also within the scope of this study to compare
conventional and MFT patterns in NICU and well babies to already established patterns in adults to identify ways to improve hearing assessment in newborns and young infants. Methods: Three experiments were conducted using standard and MFT involving healthy babies and NICU babies. NICU
babies (n = 33), healthy three-week-old babies (n = 16), and neonates on high-priority hearing registry (HPHR) (n = 42) were tested. Thirty-two ears of 16 healthy Caucasian adults (compared to well-babies) and 47 ears of 26 healthy Caucasian adults (compared
to NICU babies) were also included in this study. Results: The distribution of the Vanhuyse patterns as well as variation of admittance phase and peak compensated susceptance and conductance at different probe tone frequencies was also explored. In general, in both well babies and NICU
babies, 226 Hz tympanograms are typically multipeaked in ears that passed or referred on transient otoacoustic emission (TEOAE), limiting the specificity and sensitivity of this measure for differentiating normal and abnormal middle ear conditions. Tympanograms obtained at 1 kHz are potentially
more sensitive and specific to presumably abnormal and normal middle ear conditions. Tympanometry at 1 kHz is also a good predictor of presence or absence of TEOAE.
Captive cotton‐top tamarins' (Saguinus oedipus oedipus) use of landmarks to localize hidden food items
Authors: Dolins Francine L. 
Published: January 2009

AbstractSeventeen captive cotton‐top tamarins (Saguinus oedipus oedipus) were individually tested on their use of spatial relationships between landmarks to locate multiple hidden food items. In two experiments, the tamarins were presented with a spatial‐foraging task in which positions of hidden food rewards were fixed in relation to an array of visual cues. In Experiment 1, the cues+hidden food configuration was rotated 90° and the tamarins were successful in locating the food items significantly above chance levels (P<0.01). In Experiment 2 the cues+hidden food configuration was translated (up, down or sideways) from the previously learned configuration, and the monkeys successfully localized the hidden food items (P<0.001). Results indicate that the tamarins relied on the spatial relationship between the multiple landmarks to locate hidden food items rather than on an associative or beacon strategy. The results of these experiments support the contention that when contextually appropriate these captive New World monkeys have the capacity to rely on the spatial relationship or positions of several cues as an array to localize points in their environment. Am. J. Primatol. 71:316–323, 2009. © 2009 Wiley‐Liss, Inc.
Proton‐Detected Solid‐State NMR Spectroscopy of Natural‐Abundance Peptide and Protein Pharmaceuticals
Authors: Zhou Donghua H. , Shah Gautam , Mullen Charles , Sandoz Dennis , Rienstra Chad M. 
Published: January 2009

AbstractKeine Anreicherung nötig: Eine empfindliche NMR‐Spektroskopiemethode wurde entwickelt, die gut aufgelöste 2D‐Spektren (15N‐1H und 13C‐1H) von großen Molekülen (wie Biopharmazeutika) liefert, ohne dass eine Isotopenanreicherung erforderlich ist. Diese Methode gab Einblicke in die Strukturen zweier lyophilisierter Aprotininproben sowie dreier Insulinproben in lyophilisierter, mikrokristalliner Suspension (rot; siehe Bild) und Fibrillenformen (grün).magnified image
Fortschritte in der Chemie und Biologie natürlicher Antibiotika
Authors: Nicolaou K. C. , Chen Jason S. , Edmonds David J. , Estrada Anthony A. 
Published: January 2009

AbstractSeit der bahnbrechenden Entdeckung von Penicillin wurde die Vielfalt natürlich vorkommender Moleküle ausgiebig hinsichtlich ihrer Eignung als Medikamente sowie zum Auffinden neuer Leitstrukturen beim Wirkstoffdesign untersucht. Die Suche nach Wirkstoffen, mit denen Infektionskrankheiten bekämpft werden können, war dabei von besonderem Interesse und verlief sehr erfolgreich. Die Erforschung der Antibiotika weist eindrucksvolle Entdeckungen und Geschichten über die Entwicklung von Wirkstoffen auf, von denen die große Mehrheit ihren Ursprung in Naturstoffen hat. Die Chemie und besonders die chemische Synthese haben eine bedeutende Rolle dabei gespielt, natürlich vorkommende Antibiotika und deren Derivate für die medizinische Anwendung bereitzustellen, und zweifellos werden diese Disziplinen auch künftig Schlüsseltechnologien sein. In dieser Übersicht stellen wir einige der bedeutendsten neueren Entwicklungen und Fortschritte in der Chemie, Biologie und Medizin natürlich vorkommender Antibiotika vor, wobei die Totalsynthese, das Design von Analoga und die biologische Bewertung von Molekülen mit neuartigen Wirkmechanismen im Vordergrund stehen.
Oxidase‐Like Activity of Polymer‐Coated Cerium Oxide Nanoparticles
Authors: Asati Atul , Santra Santimukul , Kaittanis Charalambos , Nath Sudip , Perez J. Manuel 
Published: January 2009

AbstractAnorganisches Enzym? Ceroxidnanopartikel zeigen einzigartige Oxidaseaktivität bei niedrigen pH‐Werten. Diese Redoxkatalysatoren können in Immunassays (ELISA) verwendet werden, wenn sie mit geeigneten Liganden modifiziert sind (siehe Bild; hellblau, gelb: Nanopartikel mit Liganden). Diese Modifizierung ermöglicht sowohl die Bindung als auch die Detektion durch katalytische Oxidation empfindlicher kolorimetrischer Farbstoffe (z. B. TMB).magnified image
Oxidase‐Like Activity of Polymer‐Coated Cerium Oxide Nanoparticles
Authors: Asati Atul , Santra Santimukul , Kaittanis Charalambos , Nath Sudip , Perez J. Manuel 
Published: January 2009

AbstractInorganic enzyme? Ceria nanoparticles exhibit unique oxidase‐like activity at acidic pH values. These redox catalysts can be used in immunoassays (ELISA) when modified with targeting ligands (see picture; light blue and yellow structures are nanoparticles with attached ligands). This modification allows both for binding and for detection by the catalytic oxidation of sensitive colorimetric dyes (e.g. TMB).magnified image
Hydrogenation of N‐Acylcarbamates and N‐Acylsulfonamides Catalyzed by a Bifunctional [Cp*Ru(PN)] Complex
Authors: Ito Masato , Koo Lee Wei , Himizu Akio , Kobayashi Chika , Sakaguchi Ayaka , Ikariya Takao 
Published: January 2009

AbstractAwakening of the Cp one: The bifunctional complex 1 facilitates the interaction with substrates bearing less electrophilic carbon atoms than ketones, epoxides, and imides. The title reaction was applicable to the reduction of Evans' asymmetric alkylation products to the chiral alcohols along with good recovery of the chiral oxazolidinone auxiliary. EWG=electron‐withdrawing group.magnified image
Gas‐Phase versus Liquid‐Phase Structures by Electrospray Ionization Mass Spectrometry
Authors: Tian Zhixin , Kass Steven R. 
Published: January 2009

AbstractPreferred protonation: Does electrospray ionization mass spectrometry produce gas‐phase or liquid‐phase structures? The preferred protonation site in p‐aminobenzoic acid depends upon the medium, and the structure of its conjugate acid varies with the solvent used during spraying.magnified image
National and international dimensions of the Triple Helix in Japan: University–industry–government versus international coauthorship relations
Authors: Leydesdorff Loet , Sun Yuan 
Published: January 2009

AbstractInternational co‐authorship relations and university–industry–government (Triple Helix) relations have hitherto been studied separately. Using Japanese publication data for the 1981–2004 period, we were able to study both kinds of relations in a single design. In the Japanese file, 1,277,030 articles with at least one Japanese address were attributed to the three sectors, and we know additionally whether these papers were coauthored internationally. Using the mutual information in three and four dimensions, respectively, we show that the Japanese Triple‐Helix system has been continuously eroded at the national level. However, since the mid‐1990s, international coauthorship relations have contributed to a reduction of the uncertainty at the national level. In other words, the national publication system of Japan has developed a capacity to retain surplus value generated internationally. In a final section, we compare these results with an analysis based on similar data for Canada. A relative uncoupling of national university–industry–government relations because of international collaborations is indicated in both countries.
Nano‐Supramolecular Assemblies Constructed from Water‐Soluble Bis(calix[5]arenes) with Porphyrins and Their Photoinduced Electron Transfer Properties
Authors: Guo Dong‐Sheng , Chen Kun , Zhang Hong‐Qing , Liu Yu 
Published: January 2009

AbstractWhat a PET!Two well‐defined nanoarchitectures with 2D netlike and 1D linear topological structures are constructed by bis(p‐sulfonatocalix[5]arenes) and cationic porphyrins, respectively, in which an unambiguous PET process is observed. As a result, the supramolecular aggregates possess, in principle, benign photoelectric properties with the transport of an electron between the building blocks in the nanoscale region.magnified imagePossessing 2D netlike and 1D linear morphologies, two nano‐supramolecular architecturesA1andA2are constructed by tetracationic porphyrin (G1) and dicationic porphyrin (G2), respectively, upon complexation with the novel water‐soluble bis(p‐sulfonatocalix[5]arenes) bridged at the lower rim (H2). Corresponding to the molecular design, the aggregation morphologies are well manipulated by the inherent binding sites of the building blocks through host–guest interactions as well as charge interactions. In comparison to the simplep‐sulfonatocalix[5]areneH1which can only form particle‐type complexesC1andC2with porphyrin guests,H2provides excellent pre‐organized structure to construct highly complex nano‐supramolecular assemblies. The exhibited electron‐transfer process of the supramolecular systems is further investigated by steady‐state and time‐resolved fluorescence spectroscopy, electrochemical measurements, and transient absorption spectroscopy. The results obtained show that calixarenes are also effective electron donors in PET besides acting as significant building blocks, which gives them many advantages in constructing well‐ordered nanomaterials with the capability of electron and energy transport.
Dithiolate‐Bridged Fe‐Ni‐Fe Trinuclear Complexes Consisting of Fe(CO)3−n(CN)n (n=0, 1) Components Relevant to the Active Site of [NiFe] Hydrogenase
Authors: Pal Satyanarayan , Ohki Yasuhiro , Yoshikawa Teppei , Kuge Katsuaki , Tatsumi Kazuyuki 
Published: January 2009

AbstractStep‐by‐step: A trinuclear Fe‐Ni‐Fe complex 1 was synthesized from the reaction of [Fe(CO)4I2] with Li2[Ni(norbornane‐exo‐2,3‐dithiolate)2]. The CO ligands in 1 were transformed into CN− upon treatment with −N(SiMe3)2, and the monocyanide complex 3 and the dicyanide complex 4 were obtained. Complexes 3 and 4 were found to react with protonic acids, whereas 1 is robust.magnified imageA dithiolate‐bridged Fe‐Ni‐Fe trinuclear carbonyl complex [(CO)3Fe(μ‐ndt)Ni(μ‐ndt)Fe(CO)3] (1, ndt=norbornane‐exo‐2,3‐dithiolate) has been synthesized from the reaction of [Fe(CO)4I2] and Li2[Ni(ndt)2]. This reaction was found to occur with concomitant formation of a tetranuclear cluster [Ni3(μ‐ndt)4FeI] (2). Treatment of 1 with Na[N(SiMe3)2] transforms some of the CO ligands into CN−, and the monocyanide complex (PPh4)[(CO)2(CN)Fe(μ‐ndt)Ni(μ‐ndt)Fe(CO)3] (3) and the dicyanide complex (PPh4)2[(CO)2(CN)Fe(μ‐ndt)Ni(μ‐ndt)Fe(CO)2(CN)] (4) were isolated. X‐ray structural analyses of the trinuclear complexes revealed a Fe‐Ni‐Fe array in which the metal centers are connected by the ndt sulfur bridges and direct FeNi bonds. Hydrogen bonding between the CN ligand in 3 and cocrystallized ethanol was found in the solid‐state structure. The monocyanide complex 3 and dicyanide complex 4 reacted with acids such as HOTf or HCl generating insoluble materials, whereas complex 1 did not react.
Barocke Dachwerke: Konstruktion und Analyse des Tragverhaltens
Authors: Holzer Stefan M. , Köck Bernd 
Published: January 2009

AbstractKonstruktion und Tragverhalten historischer Bauwerke haben schon öfter im Zentrum von Forschungsprojekten gestanden, zuletzt ganz besonders intensiv im Karlsruher DFG‐Sonderforschungsbereich 315 (Erhalten historisch bedeutsamer Bauwerke). Der hier vorliegende Beitrag ist einem Thema gewidmet, das bei allen diesen Forschungen bisher am Rande gestanden hat, nämlich den barocken Holzkonstruktionen. Die Autoren haben in den letzten Jahren eine große Anzahl barocker Dachwerke in Bayern untersucht, vorwiegend weitgespannte Kirchendächer. Der Bestand solcher Dächer gerade im Gebiet südlich der Donau ist nahezu unüberschaubar groß, und die statische Beurteilung und Ertüchtigung solcher Dächer stellt für den Bauingenieur eine sowohl praktisch und ökonomisch relevante als auch in der Modellbildung anspruchsvolle Aufgabe dar. Bei der Untersuchung der bayerischen Barockdächer hat es sich herausgestellt, dass die dort anzutreffenden Tragkonstruktionen in erheblichem Maße von den typischen mittelalterlichen Dachwerken oder auch von barocken Dachwerken anderer Regionen abweichen: Die barocken Dachtragwerke Süddeutschlands haben – in markantem Unterschied zum mittelalterlichen Dach mit seiner Reihung identischer, voneinander nahezu völlig unabhängiger Gespärre – ausgeprägte firstparallele Tragwirkung. Noch wichtiger – gerade auch im Hinblick auf notwendige Sanierungen – ist aber das äußerst häufige Fehlen eines Zugbandes in Form einer durchgehenden Anker‐ oder Zerrbalkenlage auf Höhe der Dachtraufe. Die oft weit in den Dachraum ragenden, meist aus Ziegeln gemauerten Gewölbe und Kuppeln machen komplizierte, vielfach statisch unbestimmte Konstruktionen zur Aufnahme der Schubkräfte der Gespärre notwendig. In diesem Beitrag werden typische Konstruktionsvarianten zur Lösung dieser barocken Aufgabe vorgestellt und deren Tragverhalten beleuchtet. Bei allen wichtigen Konstruktionsvarianten stellt sich heraus, dass diese Tragwerke bei der statischen Berechnung im Gegensatz zum klassischen Sparrendachwerk mit Zugband auf Traufenhöhe sehr sensibel auf Modellierungsannahmen reagieren, vor allem auf die angesetzten Steifigkeiten der Verbindungen und Auflager. Nichtlineare Modelle für Verbindungen (z. B. Berücksichtigung der herstellungs‐ und schwindbedingten Klaffungen) könnten einen wesentlichen Beitrag zum Verständnis des Lastabtrags und zum Nachweis der verbleibenden Standsicherheit solcher Tragwerke liefern (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)