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Showing 1 to 12 of 73 entries
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Following fluctuating signs: Anomalous active superdiffusion of swimmers in anisotropic media.

Physical review. E

Toner J, Löwen H, Wensink HH.
PMID: 27415323
Phys Rev E. 2016 Jun;93(6):062610. doi: 10.1103/PhysRevE.93.062610. Epub 2016 Jun 16.

Active (i.e., self-propelled or swimming) particles moving through an isotropic fluid exhibit conventional diffusive behavior. We report anomalous diffusion of an active particle moving in an anisotropic nematic background. While the translational motion parallel to the nematic director shows...

Coexistence diameter in two-dimensional colloid-polymer mixtures.

Physical review. E, Statistical, nonlinear, and soft matter physics

Vink RL, Wensink HH.
PMID: 16907039
Phys Rev E Stat Nonlin Soft Matter Phys. 2006 Jul;74(1):010102. doi: 10.1103/PhysRevE.74.010102. Epub 2006 Jul 13.

We demonstrate that the law of the rectilinear coexistence diameter in two-dimensional mixtures of nonspherical colloids and nonadsorbing polymers is violated. Upon approach to the critical point, the diameter shows logarithmic singular behavior governed by a term t ln...

Size fractionation in a phase-separated colloidal fluid.

Langmuir : the ACS journal of surfaces and colloids

Erné BH, van den Pol E, Vroege GJ, Visser T, Wensink HH.
PMID: 15723475
Langmuir. 2005 Mar 01;21(5):1802-5. doi: 10.1021/la047424h.

Phase separation of a polydisperse colloidal dispersion implies size fractionation. An application of this effect is given by size-selective purification procedures associated with the colloidal synthesis of so-called monodisperse nanoparticles. We used electron microscopy to determine detailed particle size...

Magnetic-field-induced orientational order in the isotropic phase of hard colloidal platelets.

Physical review. E, Statistical, nonlinear, and soft matter physics

van der Beek D, Petukhov AV, Davidson P, Ferré J, Jamet JP, Wensink HH, Vroege GJ, Bras W, Lekkerkerker HN.
PMID: 16711795
Phys Rev E Stat Nonlin Soft Matter Phys. 2006 Apr;73(4):041402. doi: 10.1103/PhysRevE.73.041402. Epub 2006 Apr 05.

The magnetic-field-induced orientational order in the isotropic phase of colloidal gibbsite [Al(OH)3] platelets is studied by means of optical birefringence and small-angle x-ray scattering (SAXS) techniques. The suspensions display field-induced ordering at moderate field strengths (a few Tesla), which...

Stable and fast semi-implicit integration of the stochastic Landau-Lifshitz equation.

Journal of physics. Condensed matter : an Institute of Physics journal

Mentink JH, Tretyakov MV, Fasolino A, Katsnelson MI, Rasing T.
PMID: 21393676
J Phys Condens Matter. 2010 May 05;22(17):176001. doi: 10.1088/0953-8984/22/17/176001. Epub 2010 Apr 07.

We propose new semi-implicit numerical methods for the integration of the stochastic Landau-Lifshitz equation with built-in angular momentum conservation. The performance of the proposed integrators is tested on the 1D Heisenberg chain. For this system, our schemes show better...

Ultrafast quenching of the exchange interaction in a Mott insulator.

Physical review letters

Mentink JH, Eckstein M.
PMID: 25126933
Phys Rev Lett. 2014 Aug 01;113(5):057201. doi: 10.1103/PhysRevLett.113.057201. Epub 2014 Jul 29.

We investigate how fast and how effective photocarrier excitation can modify the exchange interaction J_{ex} in the prototype Mott-Hubbard insulator. We demonstrate an ultrafast quenching of J_{ex} both by evaluating exchange integrals from a time-dependent response formalism and by...

Phase I Study of Dalteparin in Combination With Sunitinib in Patients With Metastatic Clear Cell Renal Carcinoma.

Clinical genitourinary cancer

Wentink MQ, Verheul HMW, Pal SK, George S, Voortman J, Danchaivijitr P, Adelaiye R, Poslinski D, Groman A, Hutson A, Pili R.
PMID: 28781191
Clin Genitourin Cancer. 2017 Jul 14; doi: 10.1016/j.clgc.2017.07.004. Epub 2017 Jul 14.

BACKGROUND: Based on the tumor-driven concomitant activation of angiogenesis and coagulation we conducted a phase I combination study of sunitinib with the low molecular weight heparin dalteparin in patients with metastatic clear cell renal cell carcinoma (ccRCC).MATERIALS AND METHODS:...

What is Important in E-health Interventions for Stroke Rehabilitation? A Survey Study among Patients, Informal Caregivers and Health Professionals.

International journal of telerehabilitation

Wentink MM, VAN Bodegom-Vos L, Brouns B, Arwert HJ, Vlieland TPMV, DE Kloet AJ, Meesters JJL.
PMID: 30147840
Int J Telerehabil. 2018 Aug 03;10(1):15-28. doi: 10.5195/ijt.2018.6247. eCollection 2018.

Incorporating user requirements in the design of e-rehabilitation interventions facilitates their implementation. However, insight into requirements for e-rehabilitation after stroke is lacking. This study investigated which user requirements for stroke e-rehabilitation are important to stroke patients, informal caregivers, and...

Long-time anomalous swimmer diffusion in smectic liquid crystals.

Physical review. E

Ferreiro-Córdova C, Toner J, Löwen H, Wensink HH.
PMID: 30011607
Phys Rev E. 2018 Jun;97(6):062606. doi: 10.1103/PhysRevE.97.062606.

The dynamics of self-locomotion of active particles in aligned or liquid crystalline fluids strongly deviates from that in simple isotropic media. We explore the long-time dynamics of a swimmer moving in a three-dimensional smectic liquid crystal and find that...

Influence of a magnetic field on the nematic phase of hard colloidal platelets.

Physical review. E, Statistical, nonlinear, and soft matter physics

van der Beek D, Davidson P, Wensink HH, Vroege GJ, Lekkerkerker HN.
PMID: 18517407
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Mar;77(3):031708. doi: 10.1103/PhysRevE.77.031708. Epub 2008 Mar 28.

We report on a study of the influence of a magnetic field on the nematic phase and the isotropic-to-nematic (IN) phase transition of hard colloidal gibbsite platelets. We find direct visual evidence of a shift of the IN transition...

Being overweight is associated with not reaching low disease activity in women but not men with Psoriatic Arthritis.

Rheumatology (Oxford, England)

Mulder MLM, Wenink MH, Vriezekolk JE.
PMID: 33831180
Rheumatology (Oxford). 2021 Apr 08; doi: 10.1093/rheumatology/keab338. Epub 2021 Apr 08.

OBJECTIVE: To assess sex differences in disease activity parameters and health-related quality of life in Psoriatic arthritis (PsA), and to assess whether determinants associated with not reaching treatment target differed between men and women.METHODS: Routine practice data of 855...

Destabilization of the Nematic Phase of Clay Nanosheet Suspensions by Polymer Adsorption.

Langmuir : the ACS journal of surfaces and colloids

El Rifaii K, Wensink HH, Bizien T, Gabriel JP, Michot L, Davidson P.
PMID: 33050693
Langmuir. 2020 Oct 27;36(42):12563-12571. doi: 10.1021/acs.langmuir.0c02084. Epub 2020 Oct 13.

Complex aqueous mixtures comprised of swelling clays and hydrosoluble polymers naturally occur in soils and play a major role in pedogenesis. They are also very often used for formulating oil-well drilling fluids, paints, and personal-care products. The suspensions of...

Showing 1 to 12 of 73 entries