Tuesday, October 21, 2008
Billi's fried nasi lemak a hit
Student loses hand in parang attack
Monday, October 20, 2008
Jeweller's wife shot dead during car chase
PASIR PUTIH: A 30-year-old woman travelling by car with her husband was shot dead yesterday morning after they did not heed a warning by three men in another car to stop.
Ayuni Hasyim and her husband were travelling to their jewellary shop in Jerteh, Terengganu from their home at Bachok. She was shot in her right shoulder and died on the arrival at the Bachok clinic. This tragedy happened around 8am at Cabang Tiga Kuala Semerak.
Wednesday, October 1, 2008
What is defibrillation?
Defibrillation is the definitive treatment for the life-threatening cardiac arrhythmias, ventricular fibrillation and ventricular tachycardia. It consists of delivering a therapeutic dose of electrical energy to the affected heart with a device called a defibrillator. This depolarizes a critical mass of the heart muscle, terminates the arrhythmia and allows normal sinus rhythm to be re-established by the body’s natural pacemaker, in the sinoatrial node of the heart. It can be external, transvenous or implanted depending on the type of the device used.
Estidotmy 24 September 2008
What is gamma knife?
A gamma knife is a device used to treat brain tumors with a high dose of radiation therapy in one day. The device was invented by Lars Leksell a Swedish neurosurgeon in 1967 at the karolinska institute in Sweden. The gamma knife device contains 201 cobalt-60 sources of approximately 30 curies each, placed in a circular array in a heavily shielded assembly. The device aims gamma radiation through a target point in the patient’s brain. The patient wears a specialized helmet that is surgically fixed to their skull so that the brain tumor remains stationary at the target point of the gamma rays.
Estidotmy 24 September 2008
What is bioengineering?
Biomedical engineering (BME) is the application of engineering principles and techniques to medical field. It combines the design and problem solving skills of engineering with medical and biological sciences to help improve the patient health care and the quality of life of individuals. As a new discipline, much of work in biomedical engineering consists of research and development, covering an array of field: bioinformatics, medical imaging, image processing, physiological signal processing, biomechanics, systems analysis and 3D modelling. Examples of concrete applications of biomedical engineering are the development and manufacture of biocompatible prostheses, medical devices, diagnostic devices and imaging equipment.
Estidotmy 24 September 2008
Monday, September 29, 2008
How does the roller coaster work?
What you may not realize as you’re cruising down the track at 100 kilometre hour is that the coaster has no engine. The car is pulled to the top of the first hill at the beginning of the ride, but after that the coaster must complete the ride on its own. You are not being propelled around the track by a motor or pulled by a hitch. The conservation of potential energy to kinetic energy is what drives the roller coaster and all of the kinetic energy you need for the ride is present once the coaster descends the first hill. Once you are underway, different type of wheels help keep the ride smooth. Running wheels guide the coaster on the track. Friction wheels control lateral motion (movement to either side of the track). A final set of wheels keeps the coaster on the track even it is inverted. Compressed air brakes stop the car as the ride ends.