ORCID Profile
0000-0001-8765-176X
Current Organisations
University of Vienna
,
Badia Consulting
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Publisher: SAGE Publications
Date: 05-02-2014
Abstract: Three studies investigated the role of action versus state orientation in how people deal with depletion of self-control resources. Action-oriented persons were expected to continue allocating resources and hence to perform better than state-oriented persons who were expected to conserve strength. Consistent with this, action-oriented persons performed better on the d2 test of attention than state-oriented persons after a strenuous physical exercise (Study 1), showed higher acuity on the critical fusion frequency test after a test of vigilance (Study 2), and performed better on the Stroop test after a depleting sensorimotor task (Study 3). No differences emerged between action- and state-oriented persons in their initial performance and in a non-depleting context. The impact of depletion on subsequent performance is thus not fixed, but moderated by personality.
Publisher: JSTOR
Date: 07-1986
DOI: 10.2307/3899778
Publisher: Springer Netherlands
Date: 1999
Publisher: CSIRO Publishing
Date: 2013
DOI: 10.1071/RJ12021
Abstract: Sheep and goat production is the main and sometimes only agricultural activity available to populations living on rangelands in the arid regions around the Mediterranean. Desertification threatens large areas of Mediterranean arid rangelands but remains difficult to describe, quantify and accurately locate for management purposes. A methodology is described which estimates a Spatial Rain-Use Efficiency Index (SRUEI) and its potential use to evaluate rangeland condition at a large scale. It is based on an Aboveground Net Primary Production (AGNPP) map generated from field herbage mass measurements and a rainfall spatial distribution map derived from local elevation–rainfall gradients with the whole resulting from satellite imagery processing and GIS technology. The area of the case study was in the Nâama–Mecheria region located on the High Plateau south of Oran (Algeria). It covers ~215 000 ha, receiving ~200 mm year–1 of winter and spring precipitation. The Nâama–Mecheria SRUEI-derived map clearly shows the degradation gradient declining away from the settlements. The Mecheria AGNPP 2007 map and associated grazing rings indicate that the Mecheria cooperative flocks may ingest 48–57% (Range Use Factor) of the rangeland’s seasonal plant production, which is barely compatible with sustainable rangeland use. When adding the effect of fuel wood collection by local residents and rain-fed arable cropping, the Nâama–Mecheria region is undoubtedly heading towards a slow but certain desertification of its fragile arid rangelands unless correcting measures are implemented. The SRUEI and associated results are powerful tools that allow rangeland conditions to be mapped, and which can be employed in planning and pursuing sustainable management of rangelands in such arid areas.
Publisher: Informa UK Limited
Date: 2001
Publisher: Informa UK Limited
Date: 07-2005
Publisher: Wiley
Date: 03-03-2020
DOI: 10.1111/APA.15229
Abstract: Our aim was to examine the relationship between rescuers' anthropometric data and chest compression quality during paediatric resuscitation training. This study focused on 224 medical students (53% women) who performed 2 minutes of paediatric resuscitation at the Medical University of Vienna, Austria: 116 on a baby manikin and 108 on an adolescent manikin. Skill Reporter software measured chest compression quality by recording compression depth, frequency, hand position and complete recoil. The participants' height, weight and body mass index (BMI) were recorded. Participants with a lower BMI achieved higher total chest compression scores on both the baby and adolescent manikins than participants with a higher BMI. The latter were more likely to exceed the correct compression depth and not achieve complete chest recoil in the adolescent manikin. When it came to the baby manikin, the female participants achieved better chest recoil and the males achieved a higher number of compressions at the correct rate. Males also achieved better chest recoil with the adolescent manikins. Being tall only correlated with incomplete recoil in the adolescent manikin. The results indicate that anthropometric variables were associated with chest compression quality in paediatric patients and should be considered by future education programmes.
Publisher: CSIRO Publishing
Date: 1985
DOI: 10.1071/RJ9850029
Abstract: A simple, single disc, pitting and seeding machine was developed for revegetation operations on degraded arid rangelands. This machine creates a shallow pit in which seeds or medic burrs are dropped and rainwater is trappedThe length or depth of a pit can be altered by changing the disc shape. The machine consists of a seed box and a single modified plough disc, articulated behind a two- wheeled trailer. The disc directly activates the seed or burr dispenser. The machine operates behind a car. The low-cost machine could be an attractive option for rangeland revegetation programmes on privately-run Australian pastoral properties or rangelands of develop- ing countries.
Publisher: Elsevier BV
Date: 11-2001
Publisher: CSIRO Publishing
Date: 1987
DOI: 10.1071/RJ9870049
Abstract: This study is aimed at assessing the benefits of specialised reseeding techniques for establishment of annual Medicago spp., or for regeneration projects, in degraded Mediterranean arid zones rangelands. Two seeding techniques were compared near Kalgoorlie and Carnarvon in Western Australia: 'pit' seeding versus 'flat' seeding, the latter simulating conventional farm seeding. Results indicate that pit seeding is more effective than flat seeding in these environments during the critical establishment phase of annual Medicam SDD. seeding establishment was increasehby 9 to 60 per cent plant vigour by 20 to 130 per cent regrowth after late rain by 67 per cent @ number per seedling by 65 to 140 per cent pod weight per seedling by 108 to 255 per cent and the number of days to flowering was reduced by up to 8 per cent.
Publisher: Informa UK Limited
Date: 03-2000
Publisher: Wiley
Date: 22-02-2005
Publisher: Public Library of Science (PLoS)
Date: 22-01-2020
Publisher: Cambridge University Press (CUP)
Date: 10-1999
DOI: 10.1017/S0014479799354089
Abstract: A series of experiments on communally-owned grasslands in the barley–livestock zone of north Syria were conducted to test the hypothesis that introduction of Mediterranean annual legumes will increase productivity. The experiments were preceded by a survey to determine farmers' attitudes, describe the farming systems and to select appropriate collaborators. The first experiment examined the establishment of medics ( Medicago spp.) and clovers ( Trifolium spp.) distributed by hand, and monitored their effects on biomass and seedbank size. Later experiments extended these results to other villages. The principles of farmer participation in research were used to overcome the constraints imposed by the communal ownership of land. The survey revealed that the average size of the 20 villages was 36 families and that each village owned 887 sheep and 790 ha land. All villages had access to communally-owned grasslands, although their dependence on income from sheep varied greatly. These villages were subsequently ided into groups of high, intermediate and low potential. Of the 11 clovers sown in the first experiment, seed numbers of T. tomentosum , T. purpureum , T. haussknechtii , T. pilulare and T. resupinatum increased over three years. By 1996, there were more than 3000 legume seeds m −2 in the seeded treatment compared with less than 2000 in the unseeded treatment (mainly the naturally-occurring Trigonella monspeliaca ). The number of medic and clover seedlings also increased significantly, while the number of Trigonella seedlings decreased significantly. Biomass production increased in the final two years and there was no response to added phosphorus. There were similar results in the later experiments. Seedbank size was greater in seeded treatments than in unseeded treatments, there were more seedlings in the seeded treatments, and the most successful species were T. c estre , T. tomentosum , T. speciosum and M. rigidula . The response in biomass was limited to the legume component, although total biomass increased in at least one of the two years. The highest biomass produced was 1112 kg ha −1 and there was no response to added phosphorus. The results suggested that the on-station research previously conducted at ICARDA headquarters was applicable to communally-owned land, although important modifications were needed. For ex le, at ICARDA phosphorus was necessary to stimulate the growth of legumes in contrast, it was necessary to sow legumes at the four villages involved in these experiments. The results also suggested that the grasslands were common property, owned and controlled by defined groups of farmers.
Publisher: Springer Netherlands
Date: 1990
Publisher: Elsevier BV
Date: 07-1996
Publisher: Elsevier BV
Date: 07-2019
Publisher: Wiley
Date: 03-1997
Publisher: Hogrefe Publishing Group
Date: 04-2011
DOI: 10.1026/1612-5010/A000040
Abstract: Zusammenfassung. Die Evaluation der Wirksamkeit von Interventionen zur Leistungsverbesserung ist eine der größten Herausforderungen der angewandten Sportpsychologie. Verschiedene Modellvorstellungen mit unterschiedlichen Evaluationsschwerpunkten existieren in anderen Bereichen der angewandten Psychologie. Dieser Beitrag stellt aktuelle Konzepte zur Ausbildungs-, Prozess- und Ergebnisevaluation in der Sportpsychologie sowie auch in anderen Fachdisziplinen (Klinische Psychologie) vor. Abschließend werden diese Erkenntnisse zusammengefasst und ein Ansatz zur Evaluation und Qualitätsoptimierung der sportpsychologischen Betreuungsarbeit in Deutschland vorgestellt.
Publisher: JSTOR
Date: 03-2004
DOI: 10.2307/4003924
Location: Australia
No related grants have been discovered for Peter Gröpel.