508 research outputs found
Psechrus schwendingeri Bayer 2012, sp. nov.
No full textPsechrus schwendingeri sp. nov. Figs 78a–f, 86k Type material. Holotype ♂ (SB 143), PHILIPPINES: Luzon: Mountain Province: Banaue, ca. N 16°55', E 121°03', ca. 1100 m, forest relict; P. Schwendinger leg. II.1981; MHNG; Paratypes: 1 s.a. ♀ (SB 144), with same data as for holotype (originally in same series); MHNG; 1 s.a. ♂ (SB 870, very close to adult moult, opisthosoma lost), PHILIPPINES: Luzon: Mountain Province: Mt. Datá, ca. N 16°52', E 120°52', ca. 2200 m; O. Koch leg. 1883–1894; F. Karsch det. Lancaria sp.; ZMB 3842. Note on type material: The subadult male SB 870 must have been very close to the final moult when it was collected. The specific bulb structures are already visible through the old cuticula. According to the label it was collected by Otto Koch in Luzon. Mt. Datá is most likely the exact locality. The publication Beolens et al. (2009) states that Otto Koch had collected most of his material from the Philippines in expeditions with Alexander Schadenberg. Schadenberg had collected a lot of material in Northern Luzon. In the first description of a bark rat named after Schadenberg (Meyer 1895) the author stated that Schadenberg stayed a longer period of time at Mount Datá, where he collected this rat and also lots of other animals. Additional material examined. PHILIPPINES: Luzon: Mountain Province: Mt. Datá, ca. N 16°52', E 120°52', ca. 2200 m; Otto Koch leg. 1883–1894; F. Karsch det. Lancaria sp.; 1 s.a. ♀ (SB 871, opisthosoma lost), ZMB 3842. Additional doubtful material examined. PHILIPPINES: Luzon: Mountain Province: most likely: Bontoc, ca. N 17°05', E 120°58', ca. 900 m; C.G. Semper leg. VIII.1860; No. 235; 1 p. s.a. ♀ (SB 872), 1 juv. (SB 873), ZMH. Etymology. The specific name is a patronym in honour of the collector of the holotype, Peter Schwendinger; noun (name) in genitive case. Diagnosis. Males with distally hook-shaped embolus (E) with its tip resting in the cymbium alveolus (CA). Conductor partly reduced and covered with a great many very small tubercles (Figs 78a–c). Description. Male: Body and eye measurements. Carapace length 7.3, carapace width 5.4, anterior width of carapace 2.9, opisthosoma length 9.4, opisthosoma width 3.1. Eyes: AME 0.39, ALE 0.38, PME 0.39, PLE 0.39, AME–AME 0.27, AME–ALE 0.09, PME–PME 0.30, PME–PLE 0.37, AME–PME 0.51, ALE–PLE 0.48, clypeus height at AME 1.02, clypeus height at ALE 0.88. Cheliceral furrow with three promarginal and four retromarginal teeth. Measurements of palp and legs. Leg formula: 1423. Palp: 7.7 [2.8, 1.1, 1.2, 2.6]; Legs: I 61.2 [17.0, 3.4, 16.3, 17.8, 6.7], II 44.9 [12.9, 3.0, 11.3, 12.7, 5.0], III 30.1 [8.9, 2.3, 7.1, 8.3, 3.5], IV 45.7 [12.7, 2.6, 11.4, 13.5, 5.5]. Spination. Palp: 131, 000, 1201{1101}; legs: femur I 556{656}, II 556, III 434 {546}, IV 545; patella I–IV 000; tibia I– II 3036, III 2026, IV 2036; metatarsus I– III 3035, IV 3036. Palpal femur with extremely flat ventral bulge proximally (Fig. 78d), actually not worth mentioning as modification. MC-I–II & MT-I absent. Copulatory organ. Embolus (E) with membranous structure leading from tip to proximal section. Conductor (C), which has in fact lost its function, distally with very narrow, membranous section. Tegulum elongated and sperm duct U-shaped (Fig. 78b). Cymbium dorsally with very dense scopula covering 2/3 of cymbium. Palpal tibia rather short and broadest distally (Figs 78a–c). Female: unknown (only subadult female known, a few measurements of the subadult female are given anyway). Body measurements. Carapace length 5.9, carapace width 4.0, opisthosoma length 9.5, opisthosoma width 4.8. Cheliceral furrow with three promarginal and four retromarginal teeth. Leg formula: 1423. Measurements of metatarsi of legs. I 9.2, II 6.6, III 4.6, IV 7.0. Palpal claw with 14 teeth. Spination. Palp: 131, 110, 1101, 1014; legs: femur I 647, II–III 545, IV 544; patella I–IV 000; tibia I–II 3036, III 3034, IV 3033; metatarsus I–IV 3035. Primordial copulatory organ. Pre-epigyne: Pre-MS three times broader than long. Distal endings of the lateral margins of pre-lateral lobes curved medially (Fig. 78f). Pre-epigynal field absent. Pre-vulva: Pre-spermathecal heads very flat, located dorsally upon cross-oval pre-receptacula (Fig. 78e). Precopulatory ducts short and narrow. Colouration of male and subadult female (see also description for Psechrus). Sternum light yellowish brown at lateral margins and with broad, light brown to red-brown, tapered patch centrally. Median bands on carapace barely serrated. Lateral bands rather broad (ca. 1.5x diameter of PME) and hardly or slightly serrated. Light longitudinal line ventrally on opisthosoma continuous and very narrow. If measured centrally on opisthosoma, its width is 0.1–0.3 times the width of one half of the cribellum. Distribution. Philippines (Fig. 102).Published as part of Bayer, Steffen, 2012, The lace-sheet-weavers — a long story (Araneae: Psechridae: Psechrus), pp. 1-170 in Zootaxa 3379 (1) on pages 141-143, DOI: 10.11646/zootaxa.3379.1.1, http://zenodo.org/record/603983
Eliomys Wagner 1840
No full textEliomys Wagner, 1840. Abh. Bayer. Akad. Wiss., 3:176. REVIEWED BY: M. Andera (MA); O. L. Rossolimo (OLR) (U.S. S.R.); G. A. Sidorowicz (GAS); G. Storch (GS). ISIS NUMBER: 5301410012002000000.Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Rodentia (Part 6), pp. 560-594 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 560, DOI: 10.5281/zenodo.735303
The lobster parasite Anophryoides haemophila (Scuticociliatida: Orchitophryidae): Nuclear 18S rDNA sequence, phylogeny and detection using oligonucleotide primers
No full textWe have determined the nucleotide sequence of the nuclear gene encoding small-subunit ribosomal ribonucleic acid of the ciliate Anophryoides haemophila, a parasite of the American lobster Homarus americanus. The gene is 1763 bp in length, and has a guanosine-plus-cytosine content of 43.9%. Inferred phylogenetic frameworks strongly support the monophyly of the scuticociliates, and suggest that order Scuticociliatida should be elevated to at least subclass rank. Oligonucleotide probes based on A. haemophila ssu-rDNA can discriminate between DNAs of A. haemophila and other investigated hymenostome ciliates, and effectively prime polymerase chain reaction-based detection of A. haemophila deoxyribonucleic acid against at least a 1600-fold excess of total deoxyribonucleic acid from H. americanus
Research fronts in library and information science in Spain
No full textPublications and author cocitations in library and information science in Spain during the period from 1985 to 1994 were analyzed as a measure of the structure, specificity and composition of research fronts in this country. A cocitation matrix developed from an ad hoc database was subjected to cluster analysis, multidimensional scaling and principal components analysis, The resulting cocitation maps identified specific areas of r~search and their knowledge bases. We inferred the degree of consolidation of the discipline of library and information science, and of the subdisciplines informetrics, librarianship and university affiliation, from the research activities revealed. In this respect, the conclusions from the study show the existence of several research fronts in Spanish literature the contents of which are in most cases difficult to compare with those in other countries. A lesser degree of maturity of research in this field is shown
Dogs on a Diet: Not Something to Take Lightly
No full textPetPlate: A Veterinary-Partnered Program to Slim Down Our Overweight PetsSummer 201
BPPV: Comparison of the SémontPLUS With the Sémont Maneuver: A Prospective Randomized Trial
No full textObjective: To compare the efficacy of the Sémont maneuver (SM) with the new “SémontPLUS maneuver” (SM+) in patients with posterior canal BPPV canalolithiasis (pcBPPVcan). Methods and Patients: In a prospective trinational (Germany, Italy, and Belgium) randomized trial, patients with pcBPPVcan were randomly assigned to SM or SM+; SM+ means overextension of the head by 60+° below earth horizontal line during the movement of the patient toward the affected side. The first maneuver was done by the physician, and the subsequent maneuvers by the patients 9 times/day on their own. Each morning the patient documented whether vertigo could be induced. The primary endpoints were: “How long (in days) does it take until no attacks can be induced?” and “What is the efficacy of a single SM/SM+?” Results: In the 194 patients analyzed (96 SM, 98 SM+), it took 2 days (median, range 1–21 days, mean 3.6 days) for recovery with SM and 1 day (median, range 1-8 days, mean 1.8 days) with SM+ (p = 0.001, Mann-Whitney U-test). There was no difference in the second primary endpoint (chi2-test, p = 0.39). Interpretation: This prospective trial shows that SM+ is more effective than SM when repeated therapeutic maneuvers are performed but not when a single maneuver is performed. It also supports the hypothesis of the biophysical model: overextension of the head during step 2 brings the clot of otoconia beyond the vertex of the canal, which increases the effectivity. Classification of Evidence: This study provides Class I evidence that SM+ is superior to SM for multiple treatment maneuvers of pcBPPVcan. © The Author
A new approach to institutional domain analysis: Multilevel research fronts structure
No full textThe intellectual structure and main research fronts of the Faculty of Natural Sciences and
Museum of the National University of La Plata, Argentina is studied, based on the cocitation analysis of subject categories, journals and authors of their scientific publications collected in the Science Citation Index, CD-ROM version, for the period 1991–2000. The objective of this study is to test the utility of those techniques to explore and to visualize the intellectual structure and research fronts of multidisciplinary institutional domains. Special emphasis is laid on the identification of multilevel structures, by means of arrangements of subject categories cocitation analysis and journal cocitation analysis
Necessary, but not sufficient: Insights into the mechanisms of mGluR mediated long-term depression from a rat model of early life seizures
No full textUsing the rat model of early life seizures (ELS), which has exaggerated mGluR mediated long-term depression of synaptic strength (mGluR-LTD) in adulthood, we probed the signaling cascades underlying mGluR-LTD induction. Several inhibitors completely blocked mGluR-LTD in control but not in ELS rats: the proteasome, the mammalian target of rapamycin (mTOR), S6 kinase (S6K), or L-type voltage-gated calcium channels (L-type VGCC). Inhibition of the Ca2+/calmodulin-dependent protein kinase II (CaMKII) resulted in a near complete block of mGluR-LTD in control rats and a slight reduction of mGluR-LTD in ELS rats. “Autonomous” CaMKII was found to be upregulated in ELS rats, while elevated S6K activity, which is stimulated by mTOR, was described previously. Thus, modulation of each of these factors was necessary for mGluR-LTD induction in control rats, but even their combined, permanent activation in the ELS rats was not sufficient to individually support mGluR-LTD induction following ELS. This implies that while these factors may act sequentially in controls to mediate mGluR-LTD, this is no longer the case after ELS. In contrast, activated ERK was found to be significantly down-regulated in ELS rats. Inhibition of MEK/ERK activation in control rats elevated mGluR-LTD to the exaggerated levels seen in ELS rats. Together, these results elucidate both the mechanisms that persistently enhance mGluR-LTD after ELS and the mechanisms underlying normal mGluR-LTD by providing evidence for multiple, convergent pathways that mediate mGluR-LTD induction. With our prior work, this ties these signaling cascades to the ELS behavioral phenotype that includes abnormal working memory, fear conditioning and socialization
Tissue location of resistance in apple to the rosy apple aphid established by electrical penetration graphs
No full textA study of the constitutive resistance of the apple cultivar Florina, Malus domestica Borkh. (Rosaceae), to the rosy apple aphid, Dysaphis plantaginea (Passerini) (Homoptera Aphididae), was performed for the first time by the electrical penetration graph (DC-EPG) system, using the susceptible apple cultivar Smoothe as control. All experiments were conducted with apterous adult virginoparae. The results showed a constitutive resistance in Florina due to a much longer period before the first probe reflecting surface factors. Some weak indications were found for pre-phloem resistance and initiating phloem access was not affected as inferred from equal time to show phloem salivation. However, the complete absence of phloem ingestion indicates a major resistance factor in the phloem sieve elements, most likely in the sieve element sap. Surface factors could have affected tissue related variables and this should be studied further. Anyhow, the strong constitutive resistance in Florina, either on the surface alone or in the phloem as well, effectively prevented reliable experiments on induced resistance, previously detected by molecular methods
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