1,126 research outputs found
Selecting films for sex research: Gender differences in erotic film preference
No full textThe official published version can be obtained from the link below.The aim of this study was to explore gender differences in sexual responsiveness to erotic films that had been selected for their differential appeal for men and women. A secondary objective was to identify variables that influence sexual arousal and explore whether these variables differ for men and women. Fifteen men (M age = 26 yrs) and 17 women (M age = 24 yrs) were presented with 20 film clips depicting heterosexual interactions, half of which were female- and the other half male-selected, and were asked to rate the clips on a number of dimensions. Overall, men found the film clips more sexually arousing than did the women. Gender differences in arousal were negligible for female-selected clips but substantial for male-selected clips. Furthermore, men and women experienced higher levels of sexual arousal to clips selected for individuals of their own gender. Cluster regression analyses, explaining 77% of the variance for male and 65% for female participants, revealed that men's sexual arousal was dependent upon the attractiveness of the female actor, feeling interested, and both imagining oneself as a participant and watching as an observer. For women, with all variables entered, only imagining oneself as a participant contributed to sexual arousal ratings. The findings suggest that how films are selected in sex research is an important variable in predicting levels of sexual arousal reported by men and women
Correction to: Comparing the UK EQ-5D-3L and English EQ-5D-5L Value Sets
No full textThe article Comparing the UK EQ-5D-3L and English EQ-5D-5L Value Sets, written by Brendan Mulhern, Yan Feng, Koonal Shah, Mathieu F. Janssen, Michael Herdman, Ben van Hout, Nancy Devlin was originally published electronically on the publisher’s internet portal (currently SpringerLink) on February 23, 2018 without open access
Draadloos HiFi audio systeem
No full textDeze thesis gaat over het ontwerpen van antennes voor een draadloos audiosysteem. De zender van het audiosysteem beschikt over een IFA (inverted-F antenne) en de ontvanger over twee MIFA’s (meandered inverted-F antenne). Door de antennes te meten zijn waarden voor het compensatienetwerk ontworpen die het bereik van het audiosysteem moeten verhogen. Dit is uiteindelijk niet gelukt. De oorzaak kan aan het PCB ontwerp liggen of aan de manier van compenseren.TelecommunicationsElectrical Engineering, Mathematics and Computer Scienc
Feasibility and validity of the EQ-5D-3L in the elderly Europeans: a secondary data analysis using SHARE(d) data
No full textBuchholz I, Marten O, Janssen MF. Feasibility and validity of the EQ-5D-3L in the elderly Europeans: a secondary data analysis using SHARE(d) data. Quality of Life Research. 2022;31(11):3267–3282.Purpose: To determine feasibility and validity of the EQ-5D-3L in the elderly European population.
Methods: Secondary data analysis based on the study of health, ageing, and retirement in Europe (SHARE) to determine the percentage of missing items for EQ-5D dimensions and EQ VAS, and to demonstrate convergent/divergent validity with measures included in the SHARE survey. Known-groups validity was tested using literature-based hypotheses. Correlation coefficients and Cohen's f are reported.
Results: Missing values were below 3% across all EQ-5D dimensions and gender strata, slightly increasing with age. Individuals' responses to each EQ-5D dimension were related to their ratings of other measures in expected directions. The EQ VAS and all EQ-5D dimensions (except anxiety/depression) moderately to strongly correlated with physical [e.g. number of limitations in activities of daily living (ADL): r = 0.313-0.658] and generic measures [CASP (control, autonomy, self-realization, pleasure)-19 scale, self-perceived health, number of symptoms: r = 0.318-0.622], while anxiety/depression strongly correlated with the EURO-D scale (r = 0.527). Both EQ-5D dimensions and EQ VAS discriminated well between two [or more] groups known to differ [e.g. anxiety/depression discriminated well between persons classified as depressed/not depressed using the EURO-D scale, f = 0.51; self-care differentiated best between individuals without and with 1 + ADL limitations, f = 0.69]. Sociodemographic variables like gender, education, and partner in household were hardly associated with EQ VAS scores (f < 0.25).
Conclusion: With item non-response of less than 3%, good discriminatory, and construct properties, the EQ-5D-3L showed to be a feasible and valid measure in the elderly Europeans
Pusionella hofmanni Harzhauser & Landau & Janssen 2022, nov. sp.
No full textPusionella hofmanni nov. sp. Figs 41E 1 –E 2, F 1 –F 2, G 1 –G 2, 4K, 5, 7 Type material. Holotype: NHMW 1867 /0019/0136, SL: 44.0 mm, MD: 14.1 mm, Coşteiu de Sus (Romania), figs 401E 1 –E 2, 4K. Paratypes: NHMW 1867 /0019/0142a, SL: 33.8 mm, MD: 12.1 mm, Coşteiu de Sus (Romania), figs 41F 1 –F 2; NHMW 1867 /0019/0142b, SL: 30.1 mm, MD: 11.0 mm, Coşteiu de Sus (Romania), figs 41G 1 –G 2; NHMW 1867 /0019/0142, 4 spec., Coşteiu de Sus (Romania). Type locality. Coşteiu de Sus (Romania), Făget Basin. Type stratum. Silt and clay of the Dej Formation. Age. Middle Miocene, early/middle Badenian (Langhian). Etymology. In honor of Thomas Hofmann (Geological Survey of Austria, Vienna), geologist, great popularizer of science and friend of the first author. Diagnosis. Medium-sized, fusiform with high, weakly gradate spire, subcylindrical whorls with rounded shoulder and convex base. Early teleoconch whorls with deep spiral groove; siphonal canal with strongly raised spiral cord. Description. Shell medium-sized, moderately broad fusiform with high, weakly gradate spire; apical angle ~38°. Protoconch not preserved. Teleoconch of 12 whorls. Early teleoconch whorls weakly concave, with weak, smooth subsutural spiral cord and suprasutural row of large beads, separated by deeply incised spiral groove. On third to fourth whorl suprasutural beads fade, deep groove separates narrower slightly concave subsutural cord from wider abapical portion of whorl. Spiral groove shifting slightly in abapical direction on subsequent whorls, becoming subobsolete on eighth whorl. Late whorls smooth, subcylindrical. Suture weakly impressed, linear. Last whorl 56– 60% of total height, subcylindrical. Subsutural collar, ramp and shoulder not developed. Rounded and moderately constricted at base. Siphonal fasciole strongly delimited by raised ridge, flattened, twisted, with prominent growth lines. Sculpture of weak, narrow cords restricted to base and fasciole.Aperture moderately wide, pyriform. Outer lip thin, smooth within. Anal sinus very shallow, wide; siphonal canal moderately short, strongly deflected to left and dorsally, shallowly notched at tip. Columella weakly twisted, smooth. Columella excavated in upper third, strongly twisted at fasciole. Columellar and parietal callus thin, poorly delimited from base. Discussion. Pusionella hofmanni nov. sp. is morphologically close to P. palatina Strausz, 1954, but in P. palatina the early whorls are coeloconoid, with the beads at the abapical suture persisting to the sixth whorl. In P. hofmanni the early whorl profile is regularly conical and broader, the whorls more depressed and the beads fade by the fourth whorl. In addition, Pusionella hofmanni differs in the generally less conical, but slightly gradate spire, the deeper spiral groove on early spire whorls, and the shallowly notched and less deflected siphonal canal. The extant Pusionella ghanaensis Boyer & Ryall, 2006 develops a similar spiral groove on early spire whorls, but differs from P. hofmanni in having spiral cords on the last whorl. Pusionella pseudofusus (Des Moulins, 1842), from the Burdigalian of France, and P. tauronifat Sacco, 1891 and P. pedemontana Sacco, 1891, from the Burdigalian of Italy, all lack a spiral groove on early teleoconch whorls (see Peyrot 1931: 103, pl. 9, figs 74–76; Sacco 1904: 62, pl. 2, fig. 77; Ferrero Mortara et al. 1984: 66, pl. 56, fig. 14). Paleoenvironment. Unknown. Distribution in Central Paratethys. Badenian (middle Miocene): Făget Basin: Coşteiu de Sus (Romania) (hoc opus). Genus Scaevatula Gofas, 1990 Type species. Scaevatula pellisserpentis Gofas, 1990. Present-day, São Tomé (Gulf of Guinea). Diagnosis. Small, moderately slender fusiform sinistral or dextral shells with high spire and low last whorl. Narrow subsutural collar with beads; entire shells with dense sculpture of axial ribs and spiral cords. Base slowly contracting. Siphonal canal short, relatively wide, deflected to the left. Aperture ovoid with thin and smooth outer lip. Columellar and parietal callus forming rim. Low, dome shaped, paucispiral protoconch with broad axial ribs. Discussion. The genus was based by Gofas (1990) on a sinistral species from São Tomé (Gulf of Guinea). Later, Rolán & Fernandes (1993) described a second species from the same region as Scaevatula amancioi, which is dextrally coiled.The peculiar sculpture and especially the protoconch sculpture, which is unique within Clavatulidae, strongly suggest that both species belong to the same genus, despite the opposite coiling. Little information is available on the ecology of this genus, which occurs in few meters water depth (Rolán & Fernandes 1993). Both extant species range around 6 to 8 mm in height and thus are much smaller than the Paratethyan Scaevatula sidoniae (Hoernes & Auinger, 1891), which attains 24.8 mm in height. Moreover, the Miocene species is more solid and bears inner lirae, which are unknown from extant Scaevatula. The sculpture of Scaevatula amancioi, in contrast, is very similar to that of S. sidoniae and both develop a bipartite sculpture of early teleoconch whorls. Finally, the sculptured protoconch is so unusual in Clavatulidae that we provisionally place the Miocene species in Scaevatula. Scaevatula sidoniae is slightly reminiscent of Granulatocincta nov. gen. concerning its sculpture, but differs in its bipartite early teleoconch sculpture. Paleoenvironment. Coastal inner neritic environments (Gofas 1990). Distribution and stratigraphy. Scaevatula was known so far only from the modern fauna of tropical West Africa. Our Miocene record from the Paratethyan Sea is the first fossil record of the genus and an additional proof of a faunistic relation between the tropical Eastern Atlantic and the Paratethys Sea, which is documented also for Clavatula and Perrona.Published as part of Harzhauser, Mathias, Landau, Bernard & Janssen, Ronald, 2022, The Clavatulidae (Gastropoda, Conoidea) of the Miocene Paratethys Sea with considerations on fossil and extant Clavatulidae genera, pp. 1-172 in Zootaxa 5123 (1) on pages 138-139, DOI: 10.11646/zootaxa.5123.1.1, http://zenodo.org/record/639982
Pusionella hofmanni Harzhauser & Landau & Janssen 2022, nov. sp.
No full textPusionella hofmanni nov. sp. Figs 41E 1 –E 2, F 1 –F 2, G 1 –G 2, 4K, 5, 7 Type material. Holotype: NHMW 1867 /0019/0136, SL: 44.0 mm, MD: 14.1 mm, Coşteiu de Sus (Romania), figs 401E 1 –E 2, 4K. Paratypes: NHMW 1867 /0019/0142a, SL: 33.8 mm, MD: 12.1 mm, Coşteiu de Sus (Romania), figs 41F 1 –F 2; NHMW 1867 /0019/0142b, SL: 30.1 mm, MD: 11.0 mm, Coşteiu de Sus (Romania), figs 41G 1 –G 2; NHMW 1867 /0019/0142, 4 spec., Coşteiu de Sus (Romania). Type locality. Coşteiu de Sus (Romania), Făget Basin. Type stratum. Silt and clay of the Dej Formation. Age. Middle Miocene, early/middle Badenian (Langhian). Etymology. In honor of Thomas Hofmann (Geological Survey of Austria, Vienna), geologist, great popularizer of science and friend of the first author. Diagnosis. Medium-sized, fusiform with high, weakly gradate spire, subcylindrical whorls with rounded shoulder and convex base. Early teleoconch whorls with deep spiral groove; siphonal canal with strongly raised spiral cord. Description. Shell medium-sized, moderately broad fusiform with high, weakly gradate spire; apical angle ~38°. Protoconch not preserved. Teleoconch of 12 whorls. Early teleoconch whorls weakly concave, with weak, smooth subsutural spiral cord and suprasutural row of large beads, separated by deeply incised spiral groove. On third to fourth whorl suprasutural beads fade, deep groove separates narrower slightly concave subsutural cord from wider abapical portion of whorl. Spiral groove shifting slightly in abapical direction on subsequent whorls, becoming subobsolete on eighth whorl. Late whorls smooth, subcylindrical. Suture weakly impressed, linear. Last whorl 56– 60% of total height, subcylindrical. Subsutural collar, ramp and shoulder not developed. Rounded and moderately constricted at base. Siphonal fasciole strongly delimited by raised ridge, flattened, twisted, with prominent growth lines. Sculpture of weak, narrow cords restricted to base and fasciole.Aperture moderately wide, pyriform. Outer lip thin, smooth within. Anal sinus very shallow, wide; siphonal canal moderately short, strongly deflected to left and dorsally, shallowly notched at tip. Columella weakly twisted, smooth. Columella excavated in upper third, strongly twisted at fasciole. Columellar and parietal callus thin, poorly delimited from base. Discussion. Pusionella hofmanni nov. sp. is morphologically close to P. palatina Strausz, 1954, but in P. palatina the early whorls are coeloconoid, with the beads at the abapical suture persisting to the sixth whorl. In P. hofmanni the early whorl profile is regularly conical and broader, the whorls more depressed and the beads fade by the fourth whorl. In addition, Pusionella hofmanni differs in the generally less conical, but slightly gradate spire, the deeper spiral groove on early spire whorls, and the shallowly notched and less deflected siphonal canal. The extant Pusionella ghanaensis Boyer & Ryall, 2006 develops a similar spiral groove on early spire whorls, but differs from P. hofmanni in having spiral cords on the last whorl. Pusionella pseudofusus (Des Moulins, 1842), from the Burdigalian of France, and P. tauronifat Sacco, 1891 and P. pedemontana Sacco, 1891, from the Burdigalian of Italy, all lack a spiral groove on early teleoconch whorls (see Peyrot 1931: 103, pl. 9, figs 74–76; Sacco 1904: 62, pl. 2, fig. 77; Ferrero Mortara et al. 1984: 66, pl. 56, fig. 14). Paleoenvironment. Unknown. Distribution in Central Paratethys. Badenian (middle Miocene): Făget Basin: Coşteiu de Sus (Romania) (hoc opus). Genus Scaevatula Gofas, 1990 Type species. Scaevatula pellisserpentis Gofas, 1990. Present-day, São Tomé (Gulf of Guinea). Diagnosis. Small, moderately slender fusiform sinistral or dextral shells with high spire and low last whorl. Narrow subsutural collar with beads; entire shells with dense sculpture of axial ribs and spiral cords. Base slowly contracting. Siphonal canal short, relatively wide, deflected to the left. Aperture ovoid with thin and smooth outer lip. Columellar and parietal callus forming rim. Low, dome shaped, paucispiral protoconch with broad axial ribs. Discussion. The genus was based by Gofas (1990) on a sinistral species from São Tomé (Gulf of Guinea). Later, Rolán & Fernandes (1993) described a second species from the same region as Scaevatula amancioi, which is dextrally coiled.The peculiar sculpture and especially the protoconch sculpture, which is unique within Clavatulidae, strongly suggest that both species belong to the same genus, despite the opposite coiling. Little information is available on the ecology of this genus, which occurs in few meters water depth (Rolán & Fernandes 1993). Both extant species range around 6 to 8 mm in height and thus are much smaller than the Paratethyan Scaevatula sidoniae (Hoernes & Auinger, 1891), which attains 24.8 mm in height. Moreover, the Miocene species is more solid and bears inner lirae, which are unknown from extant Scaevatula. The sculpture of Scaevatula amancioi, in contrast, is very similar to that of S. sidoniae and both develop a bipartite sculpture of early teleoconch whorls. Finally, the sculptured protoconch is so unusual in Clavatulidae that we provisionally place the Miocene species in Scaevatula. Scaevatula sidoniae is slightly reminiscent of Granulatocincta nov. gen. concerning its sculpture, but differs in its bipartite early teleoconch sculpture. Paleoenvironment. Coastal inner neritic environments (Gofas 1990). Distribution and stratigraphy. Scaevatula was known so far only from the modern fauna of tropical West Africa. Our Miocene record from the Paratethyan Sea is the first fossil record of the genus and an additional proof of a faunistic relation between the tropical Eastern Atlantic and the Paratethys Sea, which is documented also for Clavatula and Perrona.Published as part of Harzhauser, Mathias, Landau, Bernard & Janssen, Ronald, 2022, The Clavatulidae (Gastropoda, Conoidea) of the Miocene Paratethys Sea with considerations on fossil and extant Clavatulidae genera, pp. 1-172 in Zootaxa 5123 (1) on pages 138-139, DOI: 10.11646/zootaxa.5123.1.1, http://zenodo.org/record/639982
TRAILER e-Portfolio voor Informeel Leren
No full textJanssen, J., & Brouns, F. (2012, 25 juni). TRAILER e-Portfolio voor Informeel Leren. Presentatie ePortfolio in de Regio, Maastricht, Nederland.Presentatie voor de bijeenkomst ePortfolio in de Regio (www.eportfolioinderegio.nl) over het project Tagging, Recognition and Acknowledgement of Informal Learning ExpeRiences project (TRAILER). Dit is een project in het Europese Levenlang Leren Programma, waarin de Open Universiteit samen met Europese partners tools ontwikkelt om de documentatie en accreditatie van informeel leren te ondersteunen.The work on this publication has been sponsored by the Tagging, Recognition and Acknowledgement of Informal Learning ExpeRiences project (TRAILER) that is funded by the European Commission's Lifelong Learning Programme. Ref. 519141-LLP-1-2011-1-ES-KA3-KA3MP [http://trailerproject.eu]. This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein
E-portfolio's voor informeel leren
No full textBrouns, F., Vogten, H., Janssen, J., & Finders, A. (2013). E-portfolio's voor informeel leren. Trailer exploitation workshop. Utrecht, Nederland: Open UniversiteitDe Trailer toolset, met als hoofdcomponent het e-portfolio, is ontwikkeld om informeel leren te documenteren en vast te leggen. The toolset is gepresenteerd aan potentiale exploitanten en gebruikersTagging, Recognition and Acknowledgment of Informal Learning ExpeRiences project (TRAILER) that is funded by the European Commission's Lifelong Learning Programme. Ref. 519141-LLP-1-2011-1-ES-KA3-KA3MP [http://trailerproject.eu]. This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein
Agent-Based Modelling for Security Risk Assessment
No full textSecurity Risk Assessment is commonly performed by using traditional methods based on linear probabilistic tools and informal expert judgements. These methods lack the capability to take the inherent dynamic and intelligent nature of attackers into account. To partially address the limitations, researchers applied game theory to study security risks. However, these methods still rely on traditional methods to determine essential model parameters, such as payoff values. To overcome the limitations of traditional methods, we propose an approach which combines agent-based modelling with Monte Carlo simulations. Agent-based models allow more realistic representation of essential aspects and processes of socio-technical systems at cognitive, social and organisational levels. Such models can be used to estimate risks and parameters related to them. An application of the approach is illustrated by a case study of an airport security checkpoint.Air Transport & Operation
Sub-components’ lead time optimization in precast concrete house-building industry
No full textPrecast concrete appears to be promising in dealing with delays in housing construction, yet long lead times are apparent in this industry. Lead time refers to the time that elapses between placing and receiving an order. The construction company Janssen de Jong recognizes the problem of sub-components’ long lead times in precast concrete house-building. Sub-components are those products being integrated into the precast concrete components and they are supplied to the precasting concrete factory by various suppliers. The company seeks to optimize sub-components’ lead times, so as to increase its competitiveness. Accordingly, the current research focuses on identifying the sources of sub-components’ long lead times in precast house-building industry and optimizing them, in order to improve projects’ performance in terms of time and costs. The research draws on literature review, interviews, mathematical optimization modelling and case study.Literature review and interviews with Janssen de Jong, a precasting concrete factory, a windows and frames supplier and an installation technology supplier revealed the large batch size of batch-and-queue manufacturing method, as the main quantifiable source of long manufacturing time, affecting significantly the delivery of sub-components and so, extending their lead time. Batch-and-queue utilizes the equipment to its maximum capacity, yet leads to stock creation at each production step. On the contrary, one-piece-flow manufacturing method (batch size of one), was indicated as a value-adding process worth to approach, yet not easily achievable, not so efficient and more expensive. One-piece-flow refers to moving the product step-by-step through each process step without non-value-added time. The conflicting interests of the suppliers and Janssen de Jong call for solutions that could satisfy both time- and cost-related interests.The mathematical optimization model was built based on the identified conflicting relation between reducing costs and shortening lead times, in relation to the batch size. This was done considering the arguments in favor of and against both manufacturing methods. In this way, the bias is reduced. Weights are assigned to each of the objectives, denoting their relative importance to the client. A set of optimal lead times and costs is obtained, after running the model for each supplier separately, enabling Janssen de Jong to improve the project performance as per the priorities each time. A project of 23 precast concrete houses was utilized as a case study for the model validation. Out of the involved suppliers, only the windows and frames supplier made some data accessible. This supplier already follows one-piece-flow. Access to financial data was restricted, so, a supplementary Greek company, which is active in the same field and it is highly representative of the case, was utilized. The developed model yields reasonable results compared to the real figures.Concluding, the model proves to be effective in optimizing sub-components’ lead time in precast concrete house-building industry. However, it is recommended the model to be validated using companies from other fields (e.g. installation technology company) and incorporate further information in a future version –complex to include this in the current thesis– to achieve even higher levels of realism and applicability. https://drive.google.com/drive/folders/1PJDKQysb-f-QsLG1NDwogW8awlAvUIXg?usp=sharing Repository link By following this link, the executable file with the developed graphical user interface can be accessed.Civil Engineering | Construction Management and Engineerin
- …
