29,142 research outputs found
Baeocera hesperia Lobl & Stephan 1993
No full textBaeocera hesperia Löbl & Stephan, 1993 Material examined: MHNG, WBWC; 10 specimens; Arizona, Cochise Co. Huachuca Mts., 0.8 rd. mi. SW Reef, 31.4238°N, 110.2991°W, July 4-24, 2019. Remarks: The species was based on a few specimens from Arizona and Colorado and considered rare by Löbl & Stephan (1993). Prior specimens recorded by Löbl & Stephan (1993) were collected by coleopterists who routinely sifted litter.Published as part of Löbl, Ivan, Leschen, Richard A. B. & Warner, William B., 2021, Scaphisomatini of Arizona (Coleoptera, Staphylinidae, Scaphidiinae) collected by V-Flight Intercept Traps, pp. 173-185 in Revue suisse de Zoologie 128 (1) on pages 174-176, DOI: 10.35929/RSZ.0043, http://zenodo.org/record/563987
Unemployment Benefits and Unemployment Rates of Low-Skilled and Elder Workers in West Germany: A Search Equilibrium Approach
No full textApproach Author & abstract Download 16 References 1 Citations Related works & more Corrections Author Listed: Launov, Andrey ([email protected]) (University of Kent) Wolff, Joachim ([email protected]) (Institute for Employment Research (IAB), Nuremberg) Klasen, Stephan ([email protected]) (University of Göttingen) Registered: Stephan Klasen Abstract In this paper we investigate whether the extension of the entitlement to unemployment benefits in the mid 80s can explain the increase in the unemployment rates of unskilled and elder workers in western Germany. To answer this question we estimate a version of the Burdett-Mortensen search equilibrium model and analyze how workers’ search behaviour responded to these reforms. We try both nonparametric and fully-parametric estimation methods and identify the cases in which the nonparametric approach cannot be applied. We find that the entitlement reforms are largely responsible for the increase of unemployment among unskilled workers
Unemployment Benefits and Unemployment Rates of Low-Skilled and Elder Workers in West Germany: A Search Equilibrium Approach
No full textApproach Author & abstract Download 16 References 1 Citations Related works & more Corrections Author Listed: Launov, Andrey ([email protected]) (University of Kent) Wolff, Joachim ([email protected]) (Institute for Employment Research (IAB), Nuremberg) Klasen, Stephan ([email protected]) (University of Göttingen) Registered: Stephan Klasen Abstract In this paper we investigate whether the extension of the entitlement to unemployment benefits in the mid 80s can explain the increase in the unemployment rates of unskilled and elder workers in western Germany. To answer this question we estimate a version of the Burdett-Mortensen search equilibrium model and analyze how workers’ search behaviour responded to these reforms. We try both nonparametric and fully-parametric estimation methods and identify the cases in which the nonparametric approach cannot be applied. We find that the entitlement reforms are largely responsible for the increase of unemployment among unskilled workers
Baeocera hamata Lobl & Stephan 1993
No full textBaeocera hamata Löbl & Stephan, 1993 Material examined: MHNG, WBWC; 4 specimens; Arizona, Cochise Co. Huachuca Mtns., Carr Cyn. below Carr house, 31.4447°N, 110.2864°W, Aug. 15-31, 2018. – MHNG, WBWC; 14 specimens; Arizona, Cochise Co. Huachuca Mts., 0.8 rd. mi. SW Reef, 31.4238°N, 110.2991°W, July 4 - 24, 2019. – MHNG; 1 specimen; Arizona, Pima Co., 0.3 km W Hwy 83 on Gardner Cyn. Rd., 31.7367°N, 110.6663°W, 4722 ft., July 5 - Aug. 6, 2019. Remarks: This species was based on a single specimen from Texas without specified collecting method. While its aedeagus is distinctive, the elytral punctation considered by Löbl & Stephan (1993) as diagnostic, is too variable and dissection of aedeagus is required to confirm its species identity. The examined specimens are 1.52-1.68 mm long, somewhat smaller than the holotype.Published as part of Löbl, Ivan, Leschen, Richard A. B. & Warner, William B., 2021, Scaphisomatini of Arizona (Coleoptera, Staphylinidae, Scaphidiinae) collected by V-Flight Intercept Traps, pp. 173-185 in Revue suisse de Zoologie 128 (1) on page 174, DOI: 10.35929/RSZ.0043, http://zenodo.org/record/563987
Baeocera impunctata Lobl & Stephan 1993
No full textBaeocera impunctata Löbl & Stephan, 1993 Material examined: MHNG, WBWC; 4 specimens; Arizona, Maricopa Co. along Sycamore Creek at Sunflower, 33.8651°N, 111.4657°W, Jul. 16-Aug. 4, 2019. – MHNG, WBWC; 16 specimens; Arizona, Gila Co. along Tonto Ck., 0.2 mi. S of Gisela, 34.0862°N, 111.2874°W, 2845 ft., July 6-21, 2018. – MHNG, WBWC; 13 specimens; Arizona, Pima Co., 0.3 km W Hwy 83 on Gardner Cyn. Rd., 31.7367°N, 110.6663°W, 4722 ft., July 5- Aug. 6, 2019. – MHNG, WBWC; 7 specimens; Arizona, Santa Cruz Co. Duquesne Rd., 2.3 rd. Mi E jct. Hwy 82, Santa Cruz R., 31.3757°N, 110.8406°W, Aug. 3-14, 2018. – MHNG, WBWC; 6 specimens; Arizona, Santa Cruz Co. Palo Prado Rd., east side Santa Cruz R., 31.531°N, 111.016°W, July 11-16, 2018. – WBWC; 2 specimens; Arizona, Santa Cruz Co. 3.7 rd. mi. SE of Patagonia on Harshaw RD, 31.5163°N, 110.7043°W, July 24 - Aug. 6, 2019. – MHNG, WBWC; 26 specimens; Arizona, Cochise Co. Huachuca Mts., 0.8 rd. mi. SW Reef, 31.4238°N, 110.2991°W, July 4-24, 2019. – WBWC; 3 specimens; Arizona, Cochise Co. Huachuca Mts., 0.8 rd. mi. SW Reef, 31.4238°N, 110.2991°W, Aug. 31- Sept. 28, 2018. – WBWC; 1 specimen; Arizona, Cochise Co. Huachuca Mts., Carr Cyn. below Carr house, 31.4447°N, 110.2864°W, Aug. 15-31, 2018. Remarks: The species was based on few specimens from Arizona and New Mexico and remains unknown from other states. It was collected previously in Pima County by sifting moist leaf litter (Löbl & Stephan, 1993) and new county records are: Cochise, Gila, Maricopa, and Santa Cruz.Published as part of Löbl, Ivan, Leschen, Richard A. B. & Warner, William B., 2021, Scaphisomatini of Arizona (Coleoptera, Staphylinidae, Scaphidiinae) collected by V-Flight Intercept Traps, pp. 173-185 in Revue suisse de Zoologie 128 (1) on page 176, DOI: 10.35929/RSZ.0043, http://zenodo.org/record/563987
Measuring Vulnerability to Poverty Using Long-Term Panel Data
No full textMeasuring Vulnerability to Poverty Using Long-Term Panel Data Author & abstract Download & other version 16 References 4 Citations Related works & more Corrections Author Listed: Katja Landau (Georg-August-University Göttingen) Stephan Klasen (Georg-August-University Göttingen) Walter Zucchini (Georg-August-University Göttingen) Registered: Stephan Klasen Abstract We investigate the accuracy of ex ante assessments of vulnerability to income poverty using cross-sectional data and panel data. We use long-term panel data from Germany and apply di fferent regression models, based on household covariates and previous-year equivalence income, to classify a household as vulnerable or not. Predictive performance is assessed using the Receiver Operating Characteristics (ROC), which takes account of false positive as well as true positive rates. Estimates based on cross-sectional data are much less accurate than those based on panel data, but for Germany, the accuracy of vulnerability predictions is limited even when panel data are used. In part this low accuracy is due to low poverty incidence and high mobility in and out of poverty
Hybrid simulation of wake vortices of landing aircraft in a turbulent environment
No full textWake-vortex evolution during landing of a long range aircraft is investigated in a turbulent environment. The simulations cover final approach, touchdown on the tarmac, and the evolution of the wake after touchdown. An ambient turbulent crosswind and headwind field is generated in a pre-simulation. The wake is initialized using a RANS-LES coupling approach. The further development of the vortical wake is investigated by large-eddy simulation until final decay. Strong three-dimensional deformations appearing after touchdown and linkings with the ground are studied. The downwind vortex is strongly advected with crosswind and decays quickly. The interaction of plate line disturbances and end effects in a turbulent environment leads to irregular decay pattern
Measuring Vulnerability to Poverty Using Long-Term Panel Data
No full textMeasuring Vulnerability to Poverty Using Long-Term Panel Data Author & abstract Download & other version 16 References 4 Citations Related works & more Corrections Author Listed: Katja Landau (Georg-August-University Göttingen) Stephan Klasen (Georg-August-University Göttingen) Walter Zucchini (Georg-August-University Göttingen) Registered: Stephan Klasen Abstract We investigate the accuracy of ex ante assessments of vulnerability to income poverty using cross-sectional data and panel data. We use long-term panel data from Germany and apply di fferent regression models, based on household covariates and previous-year equivalence income, to classify a household as vulnerable or not. Predictive performance is assessed using the Receiver Operating Characteristics (ROC), which takes account of false positive as well as true positive rates. Estimates based on cross-sectional data are much less accurate than those based on panel data, but for Germany, the accuracy of vulnerability predictions is limited even when panel data are used. In part this low accuracy is due to low poverty incidence and high mobility in and out of poverty
Baeocera elongata Lobl & Stephan 1993
No full textBaeocera elongata Löbl & Stephan, 1993 Material examined: MHNG, WBWC; 26 specimens; Arizona, Maricopa Co. along Sycamore Creek at Sunflower; 33.8651°N, 111.4657°W; July 16 - Aug. 4, 2019. – MHNG, WBWC; 5 specimens; Arizona, Santa Cruz Co. Old Ruby Rd., 0.9 km W of l-19; 31.4225°N, 110.9736°W, Aug. 6 - Sep. 18, 2019. – MHNG, WBWC; 11 specimens; Arizona, Santa Cruz Co. Palo Prado Rd., east side Santa Cruz R., 31.531°N, 111.016°W; July 11-16, 2018. – MHNG, WBWC; 52 specimens; Arizona, Santa Cruz Co. Duquesne Rd., 2.3 rd. mi E jct. Hwy 82, Santa Cruz R., 31.3757°N, 110.8406°W, Aug. 3-14. 2018. – MHNG, WBWC; 12 specimens; Arizona, Pima Co., 0.3 km W Hwy 83 on Gardner Cyn. Rd., 31.7367°N, 110.6663°W, 4722 ft., July 5 - Aug. 6, 2019. – MHNG, WBWC; 36 specimens; Arizona, Gila Co. Tonto Ck., 0.2 mi. S of Gisela, 34.0862°N, 111.2874°W, 2845 ft., July 6 - 21, 2018. Remarks: As the previous species, B. elongata is known from Arizona and Texas only. It was based on a few specimens only, and new county records are Maricopa and Gila. It was previously collected by sifting leaf litter in oak forests and in sycamore litter.Published as part of Löbl, Ivan, Leschen, Richard A. B. & Warner, William B., 2021, Scaphisomatini of Arizona (Coleoptera, Staphylinidae, Scaphidiinae) collected by V-Flight Intercept Traps, pp. 173-185 in Revue suisse de Zoologie 128 (1) on page 174, DOI: 10.35929/RSZ.0043, http://zenodo.org/record/563987
ETRUSKISCHER VOTIVKOPF
No full textViene descritta, esaminata e datata una testa votiva etrusca in terracotta del IV-III sec. a.C. in una collezione privata
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