‘Ageing in place’ policies presuppose that growing old in one’s own home and neighbourhood is in the best interests of older adults, as a familiar and predictable environment fosters autonomy and well-being in old age. However, discontinuities of place can challenge the relationship between older adults and their neighbourhood. This paper addresses the impact of neighbourhood transitions on older adults’ sense of belonging in the Netherlands by exploring how they deal with changes in the neighbourhood in their everyday life. The context of this qualitative research is a former working-class neighbourhood in the process of urban renewal. Our findings show how a sense of belonging is negotiated in relation to everyday places and interactions within the neighbourhood, providing a sense of continuity despite neighbourhood change. 相似文献
A review of all available amino acid racemization D (alloisoleucine)/L (isoleucine) data from the whole shell of four molluscan species from Late and late Middle Pleistocene deposits of the Netherlands is presented. The data allow the distinction of 5 aminostratigraphical units, NAZ (Netherlands Amino Zone) A–E, each representing a temperate stage. The zones are correlated with marine isotope stages 1, 5e, 7, 9, and 11 respectively. Apart from NAZ-D (MIS 9), in all aminozones the marine transgression reached the present-day onshore area of the Netherlands. The transgression during NAZ-C (Oostermeer Interglacial: MIS 7) seems to be at least as widespread as its counterpart during NAZ-B (Eemian: MIS 5e) in the southern bight of the North Sea Basin. The stratigraphic position of the Oostermeer Interglacial is just below deposits of the Drente phase of the Saalian and because of this position the interglacial marine deposits have formerly erroneously considered to be of Holsteinian age. Neede, the ‘classic’ Dutch Holsteinian site, is dated in NAZ-E (MIS 11), like Noordbergum. Although the validity of these zones has been checked with independent data, some overlap between succeeding zones may occur. The relation between amino acid data from elsewhere in the North Sea Basin and the Netherlands amino zonation is discussed. The deposits at the Holsteinian stratotype Hummelsbüttel in North West Germany are dated in NAZ-D. This interglacial correlates with MIS 9. The Belvédère Interglacial, which is of importance for its archaeology, is in NAZ-D (MIS 9) and therefore of Holsteinian age as well. The lacustroglacial ‘pottery clays’ in the Noordbergum area are deposits from two glacial stages, which can be correlated with MIS 8 and 10 (the Elsterian). The pottery clay that is considered equivalent to the German ‘Lauenburger Ton’ correlates with MIS 10. 相似文献
We present the first systematic study of attenuation derived from the S-wave coda in the frequency range 1-32 Hz for the southern part of the Netherlands and its surroundings. For this we used two methods, the codaQ (Qc) method and the Multiple Lapse Time Window (MLTW) method. In the interpretation of the results both single and multiple scattering in a half space are considered. Our aim is to validate these interpretations in our region and to try to identify theeffects of attenuation due to intrinsic absoprtion (Qi)and scattering attenuation (Qs). For this we analyzedmore than 100 3-component high-quality digital seismograms from 43 crustalevents and 23 different stations in the Netherlands, Germany and Belgium.Coda Q results show smaller Qc (=Q0fn) values for epicentral distances shorter than 25 km (Q0=90) compared to larger epicentral distances (Q0=190), but similar frequency dependence (f-0.9). Interpretation of MLTW results provided a seismic albedo smaller then 0.5, suggesting that the intrinsic absorption dominates over scattering in this region. Both Qi and Qs show similar frequency dependences as Qc. These results are comparable to those obtained in other areas, but we also show that more sophisticated models are required to remove ambiguities in the interpretation. For short lapse times and shortevent-station distances we find for the simple half space model a correspondinginterpretation of both methodologies, where Qc correspondsto Qt, suggesting that a model with single scattering in ahalf space is appropriate. For long lapse times and long event station distances, however, we find that the S-wave coda is, most probably, too much influenced by crust-mantel heterogenities and more sophisticated Qinversion models using larger data sets are required for more reliable attenuation estimates. 相似文献
The time-geographical concept of coupling constraints, which define when, where and for how long individuals have to join other individuals and material objects, can be useful to ‘time squeeze’ studies. Geographers have typically operationalised the ‘when’ dimension of coupling constrains through arrival times at locations in physical space or the starting time of specific activities. This paper questions this approach and posits that it may be more productive to identify time-spans of acceptable or appropriate arrival times. However, these time-spans should not be expressed solely with reference to clock time. This is because boundaries on what is acceptable or appropriate depend not only on clock time but also on the times of the body and especially the time inherent to the dynamics in the juxtapositions and presence/absence of human beings and inanimate objects within a bounded physical space. Interview excerpts are presented to reveal how clock time interacts with contextual times in the modes in which parents in two-worker families perceive and cope with coupling constraints during workdays. 相似文献
A study is presented focusing on the potential value of parameters derived from radiosonde data or data from numerical atmospheric models for the forecasting of severe weather associated with convective storms. Parameters have been derived from soundings in the proximity of large hail, tornadoes (including tornadoes over water: waterspouts) and thunderstorms in the Netherlands. 66,365 radiosonde soundings from six stations in and around the Netherlands between 1 Dec. 1975 to 31 Aug. 2003 were classified as being associated or not associated with these weather phenomena using observational data from voluntary observers, the Dutch National Meteorological Institute (KNMI) and lightning data from the U.K. Met. Office. It was found that instability as measured by the Lifted Index or CAPE and 0–6 km wind shear independently have considerable skill in distinguishing environments of large hail and of non-hail-producing thunderstorms. It was also found that CAPE released below 3 km above ground level is on average high near waterspouts and weak tornadoes that mostly occur with low shear in the lowest 1 km above the Earth's surface. On the other hand, low-level shear is strong in environments of stronger (F1 and F2) tornadoes and increases with increasing F-scale. This is consistent with the notion that stretching of pre-existing vertical vorticity is the most important mechanism for the formation of weak tornadoes while the tilting of vorticity is more important with stronger tornadoes. The presented results may assist forecasters to assess the likelihood of severe hail or tornadoes. 相似文献
Isolated cranial and post-cranial remains of hadrosaurid dinosaurs have been collected from various outcrops in the type area of the Maastrichtian stage during the last few years. In the present contribution, dentary and maxillary teeth are recorded from the area for the first time. Post-cranial elements comprise a newly collected, fragmentary, large right metatarsal III and a broken ?right humerus, recently recognised in the collections of Teylers Museum (Haarlem). Unfortunately, none of these remains can be identified to species level. The available material suggests, however, that more than one taxon of non-lambeosaurine hadrosaurid and a possible euhadrosaurian are represented. Most of the new finds are stratigraphically well documented, which means that they may be linked to the recently published sequence-stratigraphic interpretation of the type Maastrichtian. Dinosaur remains recorded previously from the Maastrichtian type area are tabulated.
Sedimentary basins in The Netherlands contain significant amounts of hydrocarbon resources, which developed in response to
temperature and pressure history during Mesozoic and Cenozoic times. Quantification and modelling of burial, maturity and
temperature histories are the major goals of this study, allowing for a better understanding of the general geological evolution
of the different basins as well as petroleum generation. All major basins in The Netherlands encountered at least one time
of inversion and therefore moderate to high amounts of erosion. In order to determine the amount of inversion the basins have
experienced, a 1D study was performed on 20 wells within three basins (West Netherlands, Central Netherlands and Lower Saxony
Basins). New vitrinite reflectance values were obtained and existing data re-evaluated to gain a good data base. The burial
histories of six wells, two for each studied basin, are presented here, to demonstrate the differences in basin evolution
that led to their present shape and petroleum potential. The Permo-Triassic subsidence phase can be recognized in all three
basins, but with varying intensity. In the Jurassic, the basins experienced different relative movements that culminated in
the Cretaceous when the influence of the inversion caused erosion of up to 2,500 m. Most wells show deepest burial at present-day,
whereas the timing of maximum temperature differs significantly. 相似文献
In general, faults cutting through the unconsolidated sediments of the Roer Valley Rift System (RVRS), The Netherlands, form
strong barriers to horizontal groundwater flow. The relationships between deformation mechanisms along fault zones and their
impact on the hydrogeological structure of the fault zone are analyzed in a shallow (0–5 m below land surface) trench over
one of the faults in the study area. Recently developed digital-image-analysis techniques are used to estimate the spatial
distribution of hydraulic conductivity at the millimeter-scale and to describe the micromorphologic characteristics of the
fault zone. In addition, laboratory measurements of hydraulic conductivity on core-plug samples show the larger-scale distribution
of hydraulic conductivity in the damage zone flanking the main fault plane. Particulate flow is the deformation mechanism
at shallow depths, which causes the damage zone around the fault, in the sand-rich parts, to have a relatively enhanced hydraulic
conductivity. The fault core is characterized by reduced hydraulic conductivity due to clay smearing, grain-scale mixing,
and iron-oxide precipitation.
Electronic Publication 相似文献