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Search Results: 1 - 10 of 349650 matches for " Marlou C. E. Snijders "
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The Teaspoon Method; A Simple Training Program for Feeding Disorders in High Functioning Autistic Children  [PDF]
Ellen J. Van Der Gaag, Marlou C. E. Snijders
Open Journal of Pediatrics (OJPed) , 2017, DOI: 10.4236/ojped.2017.72009
Abstract: Objective: About 90% of autistic children are known to have a selective feeding disorder. In particular, methods are lacking for stimulating self feeding and treating selective eating amongst school-aged and adolescent autistic children. We developed a simple training programme for paediatricians in a general hospital to improve the eating pattern of autistic children and decrease selectivity. Methods: The study is an experimental patient series. The instructions for the training were given in 15-minute sessions by a paediatrician with the use of social positive and negative reinforcements. The negative reinforcement was an avoidance situation. The training was performed with parental participation in the home environment of the child. Results and conclusion: In the before and after measurement, the quantitative intake of fruit, potatoes and vegetables increased significantly (p < 0.05). Food selectivity decreased, expressed by an increase in variation of consumed fruit, meat, potatoes and sandwich filling (p < 0.01). The costs of the training are low, and the children stay in their home environment.
Silicon spin chains at finite temperature: dynamics of Si(553)-Au
Steven C. Erwin,P. C. Snijders
Physics , 2013, DOI: 10.1103/PhysRevB.87.235316
Abstract: When gold is deposited on Si(553), the surface self-assembles to form a periodic array of steps with nearly perfect structural order. In scanning tunneling microscopy these steps resemble quasi-one-dimensional atomic chains. At temperatures below ~50 K the chains develop tripled periodicity. We recently predicted, on the basis of density-functional theory calculations at T=0, that this tripled periodicity arises from the complete polarization of the electron spin on every third silicon atom along the step; in the ground state these linear chains of silicon spins are antiferromagnetically ordered. Here we explore, using ab-initio molecular dynamics and kinetic Monte Carlo simulations, the behavior of silicon spin chains on Si(553)-Au at finite temperature. Thermodynamic phase transitions at T>0 in one-dimensional systems are prohibited by the Mermin-Wagner theorem. Nevertheless we find that a surprisingly sharp onset occurs upon cooling---at about 30 K for perfect surfaces and at higher temperature for surfaces with defects---to a well-ordered phase with tripled periodicity, in good agreement with experiment.
InP-based two-dimensional photonic crystals filled with polymers
R. van der Heijden,C. F. Carlstrom,J. A. P. Snijders,R. W. van der Heijden,F. Karouta,R. Notzel,H. W. M. Salemink,B. K. C. Kjellander,C. W. M. Bastiaansen,D. J. Broer,E. van der Drift
Physics , 2006, DOI: 10.1063/1.2196869
Abstract: Polymer filling of the air holes of Indium Phosphide based two-dimensional photonic crystals is reported. After infiltration of the holes with a liquid monomer and solidification of the infill in situ by thermal polymerization, complete filling is proven using scanning electron microscopy. Optical transmission measurements of a filled photonic crystal structure exhibit a redshift of the air band, confirming the complete filling.
Pillarization, Multiculturalism and Cultural Freezing. Dutch Migration History and the Enforcement of Essentialist Ideas
Marlou Schrover
BMGN : Low Countries Historical Review , 2010,
Abstract: During the 1970s, the Netherlands introduced a set of multi-cultural policies which, through government subsidies, subsidised and promoted the otherness of migrants for several decades. Other countries also embraced multiculturalism. In the Netherlands, however, this policy represented a continuation of an older tradition of pillarization. Multiculturalism was not pillarization in new clothes, however, although there was a continuity of the underlying ideas, as this article will show. This led to a great deal of enthusiasm for multiculturalism, and subsequently to great disappointment, without it ever becoming clear what exactly the aim of the policy was and how its success or failure could be measured. The central thesis of this article is that the successive development of pillarization and multiculturalism in the Netherlands has led to a reinforcement of essentialist ideas concerning migrants and their descendants, as well as a freezing of ideas on ‘the’ Dutch culture. This double freezing then made adaptation difficult or impossible.
Do Intensive Care Data on Respiratory Infections Reflect Influenza Epidemics?
Antonie Koetsier, Liselotte van Asten, Frederika Dijkstra, Wim van der Hoek, Bianca E. Snijders, Cees C. van den Wijngaard, Hendriek C. Boshuizen, Gé A. Donker, Dylan W. de Lange, Nicolette F. de Keizer, Niels Peek
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0083854
Abstract: Objectives Severe influenza can lead to Intensive Care Unit (ICU) admission. We explored whether ICU data reflect influenza like illness (ILI) activity in the general population, and whether ICU respiratory infections can predict influenza epidemics. Methods We calculated the time lag and correlation between ILI incidence (from ILI sentinel surveillance, based on general practitioners (GP) consultations) and percentages of ICU admissions with a respiratory infection (from the Dutch National Intensive Care Registry) over the years 2003–2011. In addition, ICU data of the first three years was used to build three regression models to predict the start and end of influenza epidemics in the years thereafter, one to three weeks ahead. The predicted start and end of influenza epidemics were compared with observed start and end of such epidemics according to the incidence of ILI. Results Peaks in respiratory ICU admissions lasted longer than peaks in ILI incidence rates. Increases in ICU admissions occurred on average two days earlier compared to ILI. Predicting influenza epidemics one, two, or three weeks ahead yielded positive predictive values ranging from 0.52 to 0.78, and sensitivities from 0.34 to 0.51. Conclusions ICU data was associated with ILI activity, with increases in ICU data often occurring earlier and for a longer time period. However, in the Netherlands, predicting influenza epidemics in the general population using ICU data was imprecise, with low positive predictive values and sensitivities.
Competing periodicities in fractionally filled one-dimensional bands
P. C. Snijders,S. Rogge,H. H. Weitering
Physics , 2005, DOI: 10.1103/PhysRevLett.96.076801
Abstract: We present a variable temperature Scanning Tunneling Microscopy and Spectroscopy (STM and STS) study of the Si(553)-Au atomic chain reconstruction. This quasi one-dimensional (1D) system undergoes at least two charge density wave (CDW) transitions at low temperature, which can be attributed to electronic instabilities in the fractionally-filled 1D bands of the high-symmetry phase. Upon cooling, Si(553)-Au first undergoes a single-band Peierls distortion, resulting in period doubling along the imaged chains. This Peierls state is ultimately overcome by a competing tripleperiod CDW, which in turn is accompanied by a x2 periodicity in between the chains. These locked-in periodicities indicate small charge transfer between the nearly half-filled and quarter-filled 1D bands. The presence and the mobility of atomic scale dislocations in the x3 CDW state indicates the possibility of manipulating phase solitons carrying a (spin,charge) of (1/2,+-e/3) or (0,+-2e/3).
The blind spot of the Millennium Development Goals
Marlou den Hollander
Forced Migration Review , 2010,
Abstract: Ten years after the Millennium Summit, and only five years beforethe deadline to achieve the Millennium Development Goals (MDGs),progress towards MDG 5 – a 75% reduction in global maternalmortality – is most behind schedule.
E. Heijs, Van vreemdeling tot Nederlander. De verlening van het Nederlanderschap aan vreemdelingen 1813-1992
M. (Marlou) Schrover
BMGN : Low Countries Historical Review , 1998,
Anal, Penile, and Oral High-Risk HPV Infections and HPV Seropositivity in HIV-Positive and HIV-Negative Men Who Have Sex with Men
Vera M. van Rijn, Sofie H. Mooij, Madelief Mollers, Peter J. F. Snijders, Arjen G. C. L. Speksnijder, Audrey J. King, Henry J. C. de Vries, Arne van Eeden, Fiona R. M. van der Klis, Hester E. de Melker, Marianne A. B. van der Sande, Maarten F. Schim van der Loeff
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0092208
Abstract: The effects of single or multiple concordant HPV infections at various anatomical sites on type-specific HPV seropositivity are currently unknown. In this cross-sectional study we assessed whether high-risk HPV infections at various anatomical sites (i.e., anal canal, penile shaft, and oral cavity), as well as concordant infections at multiple anatomical sites, were associated with type-specific seropositivity in HIV-positive and HIV-negative MSM. MSM aged ≥18 years were recruited in Amsterdam, the Netherlands (2010–2011). Baseline anal, penile, and oral samples were analyzed for HPV DNA and genotyped using a highly sensitive PCR and reverse line blot assay. Virus-like particle (VLP) based multiplex immunoassay was used to asses HPV-specific serum antibodies against L1 VLPs. The associations between HPV infections and type-specific seropositivity of seven high-risk HPV types (7-hrHPV: types 16, 18, 31, 33, 45, 52, 58) were estimated using logistic regression analyses with generalized estimating equations. We found that 86% of 306 HIV-positive MSM and 62% of 441 HIV-negative MSM were seropositive for at least one 7-hrHPV type. 69% of HIV-positive and 41% of HIV-negative MSM were infected with at least one 7-hrHPV type at the anus, penis, or oral cavity. In multivariable analyses, 7-hrHPV seropositivity was associated with type-specific anal (and not penile) 7-hrHPV infection, and did not significantly increase with a higher number of infected anatomical sites. Oral 7-hrHPV infection showed a positive, albeit non-significant, association with seropositivity. In conclusion, seropositivity among MSM appears to be largely associated with anal HPV infection, irrespective of additionally infected anatomical sites.
The View of Elsevier Science on Licensing
Paul Snijders
Liber Quarterly : The Journal of European Research Libraries , 1999,
Abstract: Licenses need to be carefully prepared and lengthy periods of negotiations may occur.
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