Spatial Cycling of Rab GTPase, Driven by the GTPase Cycle, Controls Rab's Subcellular Distribution.

Rab GTPases (>60 members in humans) function as master regulators of intracellular membrane trafficking. Correct and specific localization of Rab proteins is required for their function. How the distinct spatial distribution of Rab GTPases in the cell is regulated remains elusive.

Comparison of two Different Methods (Patient Questionnaire and Medication Possession Ratio - MPR) for Measuring the Chronic Patient's Behavior.

Background: Medication adherence is the extent to which patients take medications as prescribed by their health care providers. There are a number of approaches to study medication-taking behavior. The aim was to compare two most common methods for measuring adherence: Patient Adherence Questionnaire and Medication Possession Ratio (MPR).

Clinical ethics in Croatia: an overview of education, services and research (an appeal for change).

The aim of this paper is to delineate current position of clinical ethics in the Croatian healthcare system by analyzing the following: representation of clinical ethics contents in the curricula of medical and associated schools; composition and role of clinical ethics consultations; and establishment of an ethical/legal framework for the conduct of research. Curriculum investigation, literature review, arid analysis of the Croatian Act on the Protection of Patients' Rights were performed. The contents of clinical ethics are offered through 63 obligatory and elective subjects at 12 institutions.

Turing instabilities in a mathematical model for signaling networks.

GTPase molecules are important regulators in cells that continuously run through an activation/deactivation and membrane-attachment/membrane-detachment cycle. Activated GTPase is able to localize in parts of the membranes and to induce cell polarity. As feedback loops contribute to the GTPase cycle and as the coupling between membrane-bound and cytoplasmic processes introduces different diffusion coefficients a Turing mechanism is a natural candidate for this symmetry breaking.

Phase-field modeling of the dynamics of multicomponent vesicles: Spinodal decomposition, coarsening, budding, and fission.

We develop a thermodynamically consistent phase-field model to simulate the dynamics of multicomponent vesicles. The model accounts for bending stiffness, spontaneous curvature, excess (surface) energy, and a line tension between the coexisting surface phases. Our approach is similar to that recently used by Wang and Du [J.