Electrode

Begin stirring the vessel 4. Zero the instrument by titrating unwanted moisture in the system 5. Add the weighed sample to the titration vessel 6. Begin adding reagent from the burette while stirring 7. When the endpoint is reached, the electrode will detect no change in current upon addition of more reagent 8. By knowing how much titrant was added, the water content can be calculated 9. Normally, the K-F instrument does the calculations and reports the results as “% water” or “ppm…

Emotion has always been an important aspect in many various situations in my life. From separating analytical work from emotion, to finding a critical key in myself as a person. Reading Just Mercy by Bryan Stevenson awoken the part of myself that runs on compassion and broke it into many pieces that I am not quite sure how to put back together. Hearing stories of mistakes and life-long destruction of people’s lives, whether they be innocent or guilty, brought the terrible and broken justice…

measure the oxygen saturation level of the newborn (Pillitteri & Pillitteri, 2013). The device used in pulse oximetry readings contains two diodes that release equal concentrations of red and infrared light concurrently into the tissue bed the electrode is secured (WHO, 2011). The reading that is displayed is the proportion of reduced hemoglobin and oxygenated blood that is calculated and displayed indicating the oxygen concentration within the blood (WHO, 2011). There are factors that…

Electroconvulsive therapy uses electricity to induce seizures in the brain. It is used to treat severe depression, treatment-resistant depression, severe mania, catatonia, agitation and aggression in people with dementia. This type of therapy originated in Italy during the late 1930’s. Previous methods of inducing seizures had been much more dangerous and feared by patients. A chemical called Metrazol was used to induce seizures and patients who had used it reported feeling immense terror before…

Lab 3: Stimulus strength vs. muscle force production Introduction: The goal of this lab is to determine the relationship between stimulus amplitude (strength) and the contractile properties (i.e. force) of the frog gastrocnemius muscle. Skeletal muscle is composed of bundles of muscle fibers called myofibers. These fibers are themselves composed of myofibrils, which are comprised of the ordered arrangement of actin and myosin. These proteins slide past each other in the presence of calcium…

solution by looking at light absorbance. The amount of absorbance in a sample is proportional to the concentration of the metal atoms in a sample. While testing is occurring, an aspirator is placed into the sample of water. A voltage is sent across the electrodes and excites either Mg or Ca inside the lamp of the spectrometer. When these excited atoms relax, monochromatic light is produced and passed through the water sample. While passing through the sample, some of the atoms will absorb this…

demand someone to go morally. His experiment, although predetermines; began by selecting males age 20 to 50, drawing straws to see who would assume the role of teacher or learner. The learner would then be strapped to a chair and then fitted with electrodes, and given a list of word pairs to memorize or learn. The teachers were then tested by naming words and asking the learner to recall its partners from the list of four choices. The teacher was then told, for every wrong answer given, an…

testing products on animals is not necessary. In my opinion, if you wouldn't use it on yourself you shouldn't test it on animals. If you're putting stuff in products that you feel the need to test on animals first, then maybe we shouldn't be using those damaging things on ouself. Animals all over the world are being treated wrong and held in captivity for product testing and it's become part of their daily lives to be hurt and even ‘tortured’ with all these different products. Most companies…

the better of people’s lives. Brain-computer interfaces (BCIs) are technologies that responds to the frequencies of our neurons and interprets that data into real world actions. “For example, a non-invasive BCI interface can be created by placing electrodes on the scalp and then measuring the weak electric signals (“Neurofeedback – Washington…

the true participants became the teacher and the accomplice was always the learner. Once the participant assumed their role the learner was taken into a room next door, and with the participant watching, he was then strapped to a chair with wired electrodes, which was connected to the shock generator in the next room with the teacher. Once the learner was attached instructions of the experiment followed. The main goal was having the learner memorize connections between various pairs of words.…