101,906 research outputs found
Exetastes illyricus STROBL 1904
No full textExetastes illyricus STROBL 1904 Exetastes illyricus STROBL 1904. Ichneum. Steierm. p. 45-46. Exetastes illyricus: HENSCH 1928: 103, Croatia; Aubert 1978: 145. D i s t r i b u t i o n:Europe.Published as part of Kolarov, J., 2008, A Catalogue of the [former] Yugoslavian Ichneumonidae (Hymenoptera, Insecta), pp. 1585-1739 in Linzer biologische Beiträge 40 (2) on page 1596, DOI: 10.5281/zenodo.543164
Tryphon bidentatus STROBL 1903
No full text<i>Tryphon bidentatus</i> STROBL 1903 <p> <i>Tryphon bidentatus</i> STROBL 1903: 49 f. – praeocc. durch <i>Tryphon bidentatus</i> STEPHENS 1835 – Holotypus () von Hinz beschriftet: " <i>T</i>. <i>bidentatus</i>... 10/6 90.." (nach der Beschreibung aus Seitenstetten/ Niederösterreich), Admont.</p> <p> Gültiger Name: <i>Neleges proditor</i> (GRAVENHORST 1829) (SCHMIEDEKNECHT 1912 in 1902-1927: 2395; HEINRICH 1953b: 208).</p>Published as part of <i>Horstmann, K., 2012, Typenrevisionen einiger von Strobl beschriebener Taxa der Ichneumonidae (Hymenoptera, Ichneumonidae), pp. 1137-1153 in Linzer biologische Beiträge 44 (2)</i> on page 1151, DOI: <a href="http://zenodo.org/record/5328957">10.5281/zenodo.5328957</a>
Sepsis biflexuosa Strobl 1893
No full textSepsis biflexuosa Strobl, 1893 Material: Switzerland: BE:Ruppoldsried, 500 m, iv.–x.1987 (leg. Duelli). FR: Nuvilly, 650 m, 2005 (leg. Duelli). GR:Rothenbrunnen, 630 m, 8.viii.1996 (leg. Merz & Bächli). SO:Messen, 500 m, 20.ix.2004 (leg. Wermelinger). VS: Leuk/Platten, 600 m, 3.viii.1998 (leg. Merz &Bächli); Visp, 650 m, 2004 (leg. Duelli). Distribution:Holarctic, Oceanian, Oriental (Ozerov 2005). Comments:This species is relatively rare in Europe but much more common in North America (pers. obs. P. T. Rohner). According to Pont &Meier (2002), this species prefers older cow and buffalo dung, but personal observations do not necessarily support this notion.Published as part of Patrick T. Rohner & Gerhard Bächli, 2016, Faunistic data of Sepsidae (Diptera) from Switzerland and additional countries including the first Swiss record of Meroplius fukuharai (Iwasa, 1984), pp. 237-260 in Mitteilungen der Schweizerischen Entomologischen Gesellschaft 89 on page 244, DOI: 10.5281/zenodo.19263
Author Correction: A prospective observational study of post-COVID-19 chronic fatigue syndrome following the first pandemic wave in Germany and biomarkers associated with symptom severity (Nature Communications, (2022), 13, 1, (5104), 10.1038/s41467-022-3
No full textIn the author list of this article, the names of the authorswere incorrectly listed with initials and family name only. The incorrect author list read as “C. Kedor, H. Freitag, L. Meyer-Arndt, K. Wittke, L. G. Hanitsch, T. Zoller, F. Steinbeis, M. Haffke, G. Rudolf, B. Heidecker, T. Bobbert, J. Spranger, H. D. Volk, C. Skurk, F. Konietschke, F. Paul, U. Behrends, J. Bellmann-Strobl and C. Scheibenbogen”. The author list has now been amended to include the given and family names in the HTML and PDF versions of the article. The corrected author list reads as “Claudia Kedor, Helma Freitag, Lil Meyer-Arndt, Kirsten Wittke, Leif G. Hanitsch, Thomas Zoller, Fridolin Steinbeis, Milan Haffke, Gordon Rudolf, Bettina Heidecker, Thomas Bobbert, Joachim Spranger, Hans- Dieter Volk, Carsten Skurk, Frank Konietschke, Friedemann Paul, Uta Behrends, Judith Bellmann-Strobl and Carmen Scheibenbogen”
Exetastes illyricus STROBL 1904
No full text<i>Exetastes illyricus</i> STROBL, 1904 <p>M a t e r i a l e x a m i n e d: Trap 4: 4♁♁ 29.vi.-13.vii., 2♀♀ 3♁♁ 13-27.vii., 1♀ 2♁♁ 27.vii.- 10.viii., 1♀ 10-24.viii.</p> <p>D i s t r i b u t i o n: Transpalaearctic, new record for Georgia and the Caucasus region.</p>Published as part of <i>Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1)</i> on page 67, DOI: <a href="http://zenodo.org/record/10788481">10.5281/zenodo.10788481</a>
A new method for detecting differential item functioning in the Rasch model
No full textDifferential item functioning (DIF) can lead to an unfair advantage or disadvantage for certain subgroups in educational and psychological testing. Therefore, a variety of statistical methods has been suggested for detecting DIF in the Rasch model. Most of these methods are designed for the comparison of pre-specified focal and reference groups, such as males and females. Latent class approaches, on the other hand, allow to detect previously unknown groups exhibiting DIF. However, this approach provides no straightforward interpretation of the groups with respect to person characteristics.
Here we propose a new method for DIF detection based on model-based recursive partitioning that can be considered as a compromise between those two extremes. With this approach it is possible to detect groups of subjects exhibiting DIF, which are not prespecified, but result from combinations of observed covariates. These groups are directly interpretable and can thus help understand the psychological sources of DIF.
The statistical background and construction of the new method is first introduced by means of an instructive example, and then applied to data from a general knowledge quiz and a teaching evaluation
Agromyza rondensis Strobl 1900
No full textAgromyza rondensis Strobl, 1900 M a t e r i a l e x a m i n e d. 3 km N Chop, floodplain meadow on Latorytsa River bank, 4.05.2018, 1 ♂, 1 ♀. D i s t r i b u t i o n. Palaearctic and Oriental Regions (Papp & Černý, 2015). In Ukraine. This “pestiferous … species” (Papp & Černý, 2015) hitherto has been sporadically found in Dnipropetrovsk, Kharkiv and Volyn Regions in May and in Crimea in September (Guglya, 2011); Transcarpathia (first record). Only 5 ♂ and 3 ♀ are in the collection of KMUN. Its distribution and bionomics in Ukraine need further clarification.Published as part of Guglya, Yu., 2020, Mining Flies Of The Subfamily Agromyzinae (Diptera, Agromyzidae) Of Ukrainian Transcarpathia, With The Description Of Three New Species, pp. 453-478 in Zoodiversity 54 (6) on page 476, DOI: 10.15407/zoo2020.06.453, http://zenodo.org/record/645572
Conditional Variable Importance for Random Forests
No full textRandom forests are becoming increasingly popular in many scientific fields because they can cope with ``small n large p'' problems, complex interactions and even highly correlated predictor variables. Their variable importance measures have recently been suggested as screening tools for, e.g., gene expression studies. However, these variable importance measures show a bias towards correlated predictor variables. We identify two mechanisms responsible for this finding: (i) A preference for the selection of correlated predictors in the tree building process and (ii) an additional advantage for correlated predictor variables induced by the unconditional permutation scheme that is employed in the computation of the variable importance measure. Based on these considerations we develop a new, conditional permutation scheme for the computation of the variable importance measure. The resulting conditional variable importance is shown to reflect the true impact of each predictor variable more reliably than the original marginal approach
Stegana nigrithorax STROBL 1898
No full textStegana nigrithorax STROBL, 1898 M a t e r i a l u n t e r s u c h t: 1♂, 9.vii.2006, Bohrenberg 1 km w Salzderhelden [MTB 4125.4]; 4♂♂, 16.vi.2007, Forst 1 km ö Osterberg bei Lippoldshausen [MTB 4524.4]; 1♂, 31.vii.2018, Hainholz, Jettenhöhle, Kat.-Nr. 4327-013 [MTB 4327.2]. S. nigrithorax ist bislang nur aus dem südniedersächsischen Hügelland bekannt, wo die Belege an Totholz in Wäldern oder dem Eingang einer Höhle in einem Laubwald gefunden wurden.Published as part of Jens-H, 2020, Die Fruchtfliegen Niedersachsens und Bremens (Diptera, Drosophilidae) The Fruit Flies (Diptera, Drosophilidae) of Lower Saxony and, pp. 475-499 in Linzer biologische Beiträge 52 (1) on page 492, DOI: 10.5281/zenodo.527511
Anthrax pilosulus STROBL 1902
No full textAnthrax pilosulus STROBL 1902 D i s t r i b u t i o n: Armenia, Azerbaijan, Greece, Gruzia, Israel, Italy, Kyrgyz-Rebublic, Mecedonia, Moldova, Russia (SET), Tajikistan, Turkey, Turkmenistan, Ukraine, Uzbekistan, former Yugoslavia. M a t e r i a l: Antalya: 11 km NE Elmalı, 19.07.1997 (Van der Poorten). Kayseri: Yahyalı, 37°56'22" N- 35°18'46" E, 28.07.2000 (Dils J., Faes J.). Malatya: Develi, 38°25'23" N- 37°48'24" E, 26.07.2000 (Dils J., Faes J.). Niğde: Maden, 37°25'56" N- 34°34'41" E, 28.07.2000 (Dils J., Faes J.).Published as part of Dils, J. & Özbek, H., 2006, Contribution to the Knowledge of the Bombyliidae of Turkey (Diptera), pp. 455-504 in Linzer biologische Beiträge 38 (1) on page 476, DOI: 10.5281/zenodo.543337
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