the purpose of the work presented here was to investigate endotheliumdependent relaxations in the rabbit coronary ligation model of heart failure. we investigated endothelium-dependent relaxations at the level of larger vessels (thoracic aorta and vena cava left renal artery and left renal vein lateral saphenous artery and lateral saphenous vein and finally central ear artery and marginal ear v...

Tethers were created between a living Escherichia coli bacterium and a bead by unspecifically attaching the bead to the outer membrane and pulling it away using optical tweezers. Upon release, the bead returned to the bacterium, thus showing the existence of an elastic tether between the bead and the bacterium. These tethers can be tens of microns long, several times the bacterial length. Using...

WHEN a patient expresses sufficient confidence in a surgeon to allow him to perform an intra-ocular operation upon his eye, it is up to the surgeon to make this ordeal as easy and as safe as it is possible for him to do. All our patients are admitted to hospital two days before operation, so that they may get to know the nursing staff and their surroundings. They are told what will happen to th...

background : chemotherapy is an important treatment for cancer, yet some of its side effects are serious and painful. many patients with cancer suffer from psychiatric disorders that most likely result from therapeutic drugs or mental strategies to cope with their illness. progressive muscle relaxation is one of the cost effective, self-help methods that promotes mental health in healthy partic...

objective: the present study compares the efficacy of two most commonly used biofeedback relaxation techniques in the treatment of generalized anxiety disorder. method: 45 individuals with generalized anxiety disorder were randomly assigned to three groups (n=15): group i received electromyographic biofeedback relaxation training, group ii received alpha-electroencephalographic biofeedback rela...

background : infertility causes psychological and emotional tension in the couples and makes severe stress on infertile men and women. relaxation technique is one of the methods that reduces the stress and can balance the human’s emotions. this study aimed to determine the effect of relaxation on the infertile women’s stress score. methods : this was a semi-experimental and clinical trial study...

In this paper, we present our implementation of physically-based simulation of hair strips. We used a mass-spring model followed by a hybrid approach where particle systems and the method of clustering of hair strands are employed. All the forces related to springs are implemented: gravity, repulsions from collisions (head and ground), absorption (ground only), frictions (ground and air), inter...

The spring pendulum in resonance is a model system for formal reduction to one degree of freedom, where some symmetry (reversibility) is maintained. The reduction can be handled by equivariant singularity theory with a distinguished parameter, yielding an integrable approximation of the Poincar e map. This makes a concise description of certain bifurcations possible. The computation of reparame...

Digital watermarking techniques have been proposed to protect the copyright of multimedia data. Robustness against geometric distortion is one of the most important issues to be solved to increase the robustness of digital image watermarking systems. Such attacks are very simple to implement, so they can defeat most existing watermarking algorithms without causing serious perceptual distortion....