ell death in the stalk of Dictyostelium discoideum , a prototypic vacuolar cell death, can be studied in vitro using cells differentiating as a monolayer. To identify early events, we examined potentially dying cells at a time when the classical signs of Dictyostelium cell death, such as heavy vacuolization and membrane lesions, were not yet apparent. We observed that most cells proceeded throu...

A one-dimensional hybrid numerical model is presented of a shallow-water flume with an incorporated piston paddle. The hybrid model is based on the improved Boussinesq equations by Madsen and Sørensen (1992) and the nonlinear shallow water equations. It is suitable for breaking and non-breaking waves and requires only two adjustable parameters: a friction coefficient and a wave breaking paramet...

Cell death in the stalk of Dictyostelium discoideum, a prototypic vacuolar cell death, can be studied in vitro using cells differentiating as a monolayer. To identify early events, we examined potentially dying cells at a time when the classical signs of Dictyostelium cell death, such as heavy vacuolization and membrane lesions, were not yet apparent. We observed that most cells proceeded throu...

P.S. FROG is a bi-directional (dipole-like) point-absorber, consisting of a floating flap or paddle, facing the waves and reacting against them by means of a large interior moving mass housed in an enlar ed section at the bottom (Fig. l). The dynamics were reported in 1986(1) , but have since been simplified by formulating them in terms of the motion in surge of the centre of wave pressure. It ...

This work concerns the numerical generation of stable solitary waves by using a piston-type wave maker and propagation characteristics in step-type flume. The was performed solving N-S (Navier–Stokes) equations on open source CFD (computational fluid dynamics) platform OpenFOAM. To this end, new module dynamic boundary conditions programmed can be applied to prescribe horizontal linear motion p...

IMPORTANCE Complications of partial flap necrosis contribute substantially to morbidity in patients who undergo head and neck reconstructive surgery. OBJECTIVE To assess the usefulness of clinical findings, intraoperative fluorescein angiography, and intraoperative indocyanine green angiography (ICGA) for evaluation of flap skin paddle perfusion in patients undergoing oromandibular reconstruc...

As an innovative approach to teaching the laboratory component of an undergraduate course on dynamic systems, we present the haptic paddle: a low-cost, single-axis, force-feedback joystick. Using the paddle, students not only learned to model and analyze dynamic systems, but by using their sense of touch, they were able to feel the effects of phenomena such as viscous damping, stiffness, and in...

BACKGROUND The free fibular osteocutaneous flap is a commonly used flap for mandible and buccal mucosa reconstruction in head and neck cancer surgery. However, the skin paddle restriction from the intermuscular septum often limits the soft tissue reconstruction. METHODS We have proposed a new modified chimeric fibular osteocutaneous flap design based on the combination of a traditional fibula...

Background. Considering that a person's physical and psychological possibilities are not limitless, the technical means used by athletes are of great importance. In order to achieve high results in the kayak sprint competition, users-athletes orient to the highest quality products; therefore, a significant task falls to their manufacturers to analyze the competitors' products, evaluate users' n...

This paper describes how a table tennis robot with a fiat paddle coordinates its movement in order to achieve efficient strokes for any given ball. We propose a method of generating stroke movement based on virtual targets that means the point at which the ball should be struck and the paddle velocity just before hitting the ball. These targets are predicted using inputs-outputs maps implemente...