150 research outputs found
First record of Psallus assimilis in Hungary (Hemiptera: Heteroptera: Miridae)
The presence of Psallus assimilis Stichel, 1956 (Hemiptera: Heteroptera: Miridae) is reported for the first time from Hungary. Specimens were collected from the canopy of field maple (Acer campestre L.) trees in Budapest, Diósd and Törökbálint in spring of 2015, 2016 and 2017. Our study indicates that P. assimilis is one of the most abundant heteropteran species in the canopy of field maple trees not only in suburban and urban forests but also on individual street trees in highly urbanized locations in Budapest. We provide photographs of the habitus and diagnostic characters of adults
First record of Deraeocoris fl avilinea in Hungary (Heteroptera, Miridae: Deraeocorinae)
Deraeocoris fl avilinea (A. Costa, 1862) is recorded for the fi rst time in Hungary. All individuals were collected from the canopies of Acer pseudoplatanus, A. platanoides and A. campestre.
With 2 figures
Methodological Investigations on a Neuropteroidea Community
The same Neuropteroidea community was collected and studied in Hungary in the years 1991 and 1992 by using different trapping techniques: a) Malaise trap, b) suction trap, c) yellow pan trap and d) light trap. The studies aimed to compare the different sampling methods for individual species, families and for the whole Neuropteroidea community. In case the whole Neuropteroidea community the trapped individual numbers collected by the suction trap surpassed all other trap types. Relatively high numbers of Neuropteroidea could be collected both by light trap and Malaise traps. The yellow pan traps did not succeed in catching large enough samples neither from point of view of sample size nor from species richness. According to the number of species collected there were not discovered any big difference between the catches of suction trap, Malaise traps and light trap.
By evaluating according to families it was stated that in case of the family Raphidiidae the
Malaise trap yielded larger and more diverse samples than any other methods; however by increasing the
number of yellow pan traps it is possible to augment the number of caught individuals. The suction traps
were found very satisfactory in collecting members of the family Coniopterygidae. For the members of the
families Hemerobiidae and Chrysopidae both the suction traps and light traps were found effective,
although suction traps were more successful in collecting Chrysopidae species.
Similarly, by evaluating the data according to individual species it was found that the Malaise
traps tended to “under-represent” species belonging to Hemerobius humulinus, Hemerobius Lutescens,
Chrysopa pallens and the ones belonging to Chrysoperla carnea complex compared to the suction trap. The
opposing situation was perceived with Micromus lanosus and Chrysopa perla. Similarly – compared to
suction trap – the light trap significantly “under-represented” the species Hemerobius humulinus, Hemerobius
lutescens, Chrysopa pallens, Chrysoperla carnea and Dichochrysa prasina and “over-represented”
Micromus angulatus, Sympherobius pygmaeus and Chrysopa phyllochroma.
The diversity of Neuropteroidea collected by Malaise trap and light trap surpassed significantly
the one of suction trap and yellow pan traps. The assemblages collected by different sampling methods
showed some overlapping, but differed in their characters
Temporal characteristics of speech: The effect of age and speech style
Aging affects temporal characteristics of speech. It is still a question how these changes occur in different speech styles which require various cognitive skills. In this paper speech rate, articulation rate, and pauses of 20 young and 20 old speakers are analyzed in four speech tyles:
spontaneous narrative, narrative recalls, a three-participant conversation, and reading aloud. Results show that age has a significant effect only on speech rate, articulation rate, and frequency of pauses. Speech style has a higher effect on temporal parameters than speakers’ age
First records of Latilica maculipes (Hemiptera: Issidae) and Synophropsis lauri (Hemiptera: Cicadellidae) in Hungary
Two Mediterranean Auchenorrhyncha species, the planthopper Latilica maculipes (Melichar, 1906) and the leafhopper Synophropsis lauri (Horváth, 1897) are reported for the first time from Hungary. With 2 figures
Study of Neuropteroidea (Raphidioptera, Neuroptera) Communities by Using Malaise Traps in an Untreated Orchard and its Environment
Neuropteroidea communities were studied near Budapest (Nagykovácsi) in an abandoned, mixed orchard and its neighbouring environment: a shrub community without a closed canopy; a shrub level of the canopied oak forest by using Malaise traps. In the open shrub verge of the orchard larger, and in the oak forest more diverse Neuropteroidea community developed than in the other investigated habitats. The Neuropteroidea communities studied did not show stable compositions in the investigated habitats and years.
By studying the linkage conditions of different species to different habitats, it was established
that Hypochrysa elegans was strongly bound to the shrub level of the closed oak forest. Besides that, both
in the shrub level and in the open forest edge, the species Micromus lanosus, Micromus angulatus, Hemerobius
micans, Hemerobius lutescens and Hemerobius humulinus were found with higher density. The
species Dichrostigma flavipes, Chrysopa formosa, Chrysopa perla, Xanthostigma xanthostigma, Chrysoperla
carnea and Dichochrysa prasina occurred in all three habitats, thus they have to be regarded as habitat
generalists. By passing beyond these tendencies Dichrostigma flavipes, Chrysopa formosa and Chrysopa
perla seemed to be more attached to the shrubby edge
Demonstration of Gd-GEM detector design for neutron macromolecular crystallography applications
The European Spallation Source (ESS) in Lund, Sweden will become the world's
most powerful thermal neutron source. The Macromolecular Diffractometer (NMX)
at the ESS requires three 51.2 x 51.2~cm detectors with reasonable
detection efficiency, sub-mm spatial resolution, a narrow point spread function
(PSF) and good time resolution. This work presents measurements with the
improved version of the NMX detector prototype consisting of a Triple-GEM
detector with natural Gd converter and a low material budget readout. The
detector was successfully tested at the neutron reactor of the Budapest Neutron
Centre (BNC) and at the D16 instrument at the Institut Laue-Langevin (ILL) in
Grenoble. The measurements with Cadmium and Gadolinium masks in Budapest
demonstrate that the point spread function of the detector lacks long tails
that could impede the measurement of diffraction spot intensities. On the D16
instrument at ILL, diffraction spots from Triose phosphate isomerase w/
2-phosphoglycolate (PGA) inhibitor were measured both in the D16 Helium-3
detector and the Gd-GEM. The comparison between the two detectors show a
similar point spread function in both detectors, and the expected efficiency
ratio compared to the Helium-3 detector. Both measurements together thus give
good indications that the Gd-GEM detector fits the requirements for the NMX
instrument at ESS
Automatic inference of indexing rules for MEDLINE
This paper describes the use and customization of Inductive Logic Programming (ILP) to infer indexing rules from MEDLINE citations. Preliminary results suggest this method may enhance the subheading attachment module of the Medical Text Indexer, a system for assisting MEDLINE indexers.
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