Friday, February 21, 2020

Term project Essay Example | Topics and Well Written Essays - 2000 words

Term project - Essay Example In our classrooms, the power outlets available are few in number and their location on the room walls are not accessible from the seating positions of most of the 20 to 30 students in the class. To provide students with the possibility of extended use of smartphones or other computing devices in the classroom, we have examined several possible solutions to the problem of providing power outlets at each chair or desk. One convenient and practical solution is to provide external battery packs clipped to each chair / desk in the classroom to which the student can connect his or her smartphone or tablet for recharging. At the end of each day, the external battery packs can be plugged into a recharge cart for overnight charging. A report on the evaluation of this solution in comparison with various alternatives is attached. We request you to kindly grant permission for us to convert 30 chairs/ desks in one classroom with smartphone recharge outlets to test that the proposal is useful. Each external battery pack is estimated to cost under $ 100 and the recharge cart under $ 1,800. The total money to be spent is estimated at around $ 5,000, made up of $ 100 x 30 for the external battery packs, $ 1,800 for the recharge cart and $ 200 for miscellaneous small expenses. After the proposal has been tried out in one classroom, we can evaluate what improvements are needed and then extend to other classrooms. We expect to be able to complete the project for one classroom in 6 to 8 weeks. The smartphone has become one of the most frequently used personal electronic devices for internet access. A majority of high school students carry mobile computing devices to school and would like to use it in the classroom as an aid to their study process. Many educators also see a benefit in permitting the use of smartphones and tablets in the classroom. The major limitation of a smartphone is its limited battery capacity, which requires the

Wednesday, February 5, 2020

Mare Reproductive Loss Syndrome Essay Example | Topics and Well Written Essays - 500 words

Mare Reproductive Loss Syndrome - Essay Example t the weather at that time in March was unusually cold followed by above normal temperatures in April, which stimulated rapid plant growth and concurrent increase in the number of eastern tent caterpillars. Wild Cherry trees were the principal source of food for these caterpillars. Lack of abortion in areas where these caterpillars did not exist and later experimental intragastric inoculation of pregnant mares with caterpillar extracts confirmed the reason for these abortions (merckvetmanual.com). The MRLS syndrome in addition to early/late fetal loss is characterized by uveitis, pericarditis and encephalitis and occurs due to tissue penetration by barbed setal fragments from Eastern tent caterpillars, Malacosoma americanum (Tobin et al, 2004). After ingestion the barbed setal fragments migrate through moving tissues followed by rapid spread of bacteria, bacterial emboli and septic fragments of setae, collectively known as septic materials (Tobin et al, 2004). A number of bacteria are carried by the setal fragments in moving tissues, blood, uterus and fetal membranes of pregnant mares. Pharmacokinetic studies and studies on the structure of the setae revealed barbs on them which facilitated the rapid spread of bacteria as hitchhikers. Clinically affected tissues show a poor antibacterial response as bacterial contamination of tissues and extracellular fluids is very rapid. It has been proposed that MRLS also includes an immunosuppressive mechanism which predisposes the affect ed horses to opportunistic bacterial infection (Flaminio et al, 2005). Pathological lesions when MRLS is suspected are consistent with bacterial infection as the cause. Streptococcus, Actinobacillus species and Serratia were some of the prominent bacterial species isolated from horses suffering from MRLS. Sebastian M.M. et al (2008) propose two hypotheses for MRLS. According to one, the syndrome is produced due to an Eastern tent caterpillar toxin complicated with secondary bacterial