We show that the exponential length distribution that is typical of actin filaments under physiological conditions dramatically narrows in the presence of (i) crosslinker proteins (ii) polyvalent counterions or (iii) depletion mediated attractions. A simple theoretical model shows that in equilibrium, short-range attractions enhance the tendency of filaments to align parallel to each other, eve...

M.F. Desimone a,1, M.C. De Marzi b,1, G.J. Copello a, M.M. Fernández b, F.L. Pieckenstain c, E.L. Malchiodi b, L.E. Diaz a,∗ a Cátedra de Quı́mica Analı́tica Instrumental, Facultad de Farmacia y Bioquı́mica, Universidad de Buenos Aires, Junı́n 956 Piso 3◦ (1113) Ciudad de Buenos Aires, Argentina b Cátedra de Inmunologı́a, IDEHU-CONICET, Facultad de Farmacia y Bioquı́mica, Universidad de Buenos Aires,...

Although several itinerary recommender systems have been proposed in the literature, they usually don’t allow users to further improve the available set of tourist attractions by submitting information in a collaborative manner. In this paper we present a collaborative itinerary recommender system that relies on crowd sourcing to both expand and maintain current the dataset of attractions. The ...

Currently, little is known about heterosexually identified individuals who nonetheless acknowledge same-sex interests. To address this shortcoming, the prevalence of same-sex attractions, fantasies, and experiences among heterosexually identified college students was examined, as well as differences between those who are exclusively heterosexual in their interests and those who are nonexclusive...

We have performed experiments on mixtures of sterically stabilised silica particles and large poly(styrene) polymers in benzene. Using this model system, we were able to independently vary short and long ranged attractive interactions by changing the temperature and/or the polymer concentration. We show that the addition of long ranged attractions to particles with initially only short ranged a...

We demonstrate that an extended picture of kinetic constraints in glass-forming liquids is sufficient to explain dynamic anomalies observed in dense suspensions of strongly attracting colloidal particles. We augment a simple model of heterogeneous relaxation with static attractions between facilitating excitations, in a way that mimics the structural effect of short-ranged interparticle attract...