(Tomita et al., 2005) Other chemical modification that has been done was acid hydrolysis which the purpose wass to produce nanocrystals and decrease the surface of starch. (Angellier et al., 2005). Gelatinisation is one of the most used modification technique that is done on starch. Water as plasticiser and salt play role in this gelatinisation process as they prevent the blending difficulty. However, salt reduce the efficiency of gelatinisation process and the cost of salt also is high.
Not only are they less painful for the patient, they are also less damaging to healthy tissues and the procedure would take a much shorter time to perform. Recently, scientists developed a new form of tough adhesive (TA) that works unlike any existing ones. In existing adhesives, there is usually a trade-off between stickiness and flexibility. Adhesives with similar chemistry to super glue are the strongest type of tissue adhesives, but they are toxic to living cells and do not work on wet surfaces. Also, they solidify immediately upon contact with water, forming very rigid plastics that restrict
Salicylic acid is not used like it used to be because of the irritable effects it has on the stomach. The form of Salicylic acid used today is known as “Aspirin” which is far less irritating to the stomach. Aspirin is a synthetic pharmaceutical drug that is non-steroidal anti-inflammatory. The physical appearance of Aspirin is a
It might also work well in room temperature, but I believe that four degrees and 65 degrees are too extreme for the protease to properly act on the egg white. I also think that none of the temperatures will result in complete ‘digestion’ as the water has quite a neutral pH and protease found in the stomach works best in an average pH of 1.6. These are very acidic conditions which were not taken into a count during this experiment. Table of results (raw data) Calculations used: Averages (not including the control, because there is an increase in mass) E.g. 0.94+1.03+0.89=0.953333 rounded to 0.95 Observations made The test tubes had a smell after 24 hours in the water baths, this was most probably caused by the break own of the proteins in the egg white.
Some advantages of this technique are that there is no radiation involved, it is good at visualizing soft tissue, and that since it can visualize soft tissue so easily it can identify a multitude of different problems. Some disadvantages are that it is time consuming, expensive, and there is extensive training needed to operate it. The last type of imaging technique that will be covered is conventional radiography which can detect foreign bodies and changes or lesions of the skeletal system and is used when the corpse cannot fit into the CT machine. The advantages of this technique are that it is simple, quick, and cost efficient. However, it uses radiation, cannot make three-dimensional reconstructions, has a superimposed image, and it cannot visualize soft tissue
Their ability to observe small changes in calibration for QC results or minor changes in the chemicals/materials or media they are working with is important. They also need to be able to remember and record those changes. Scientists need to be analytical so that they can analyse collected data and solve challenging problems that arise in day-to-day routine work in a laboratory. They should be able to visualize a problem from different angles so that it can be resolved in the best possible manner (Medical Scientists: Career, Salary and Education Information). Honesty and integrity is a critical trait that all scientists must have as it is important that a scientist reports only genuine reports and not falsify results or alter any part of the results to suit the expected outcome.
The aim of any treatment, in particular in endodontics, is to maintain a tooth in a biological context close to the physiology and thus preventing any development of inflammatory bone disease . To achieve this goal, endodontics is based on two main principles in order to eliminate a dental infection: - complete cleaning of all necrotic pulp tissue, organic and inorganic debris and any dental tissue infected in the pulp chamber, the pulp canal as well as the immediate adjacent dentine by mechanical chemo-therapy? - fill-in the residual space as tightly as possible, for a successful treatment, using a wide variety of materials
This process is very good because it requires less energy, is compact, and reduces the amount of pretreatment required in RO plants. This process is best suited for sea water, brackish water and waste water. The problems with this process are that the pipeline may themselves get fouled. Also, the poisonous waste generated is not accounted for. The energy requirements for this process are only 2.5 kWh/ML of water.
Study carried out by Rosenthal, Pyle, and Niranjan (1996) found that even though the concept appears potentially attractive, however, the method yields comparatively low content of oil, which has discouraged its commercial application. The wet processing can only be carried out via breaking the emulsion of coconut milk. This is rather difficult due to the high stability emulsion of the coconut milk. The three mechanisms of destabilization are as
Before using GC, sample has to undergo alditol acetate derivatization to prevent the amino sugars found in the sample to thermally degrade. Results obtained for the HPLC was not good as the peaks are not well resolved and there were missing components, furthermore most of the HPLC’s configuration are only able to detect neutral monosaccharides and not amino sugars and uronic acids. Hence making HPLC not useful for carbohydrate analysis. GC was able to resolve most of the carbohydrates, however, time taken to prepare the sample is long. HPAEC was the most effective in analysing carbohydrate as it is able to resolve each carbohydrate.