Ordovician Mass Destinction Essay Example | Topics and Well Written Essays - 2000 words

Ordovician Mass Destinction - Essay Example This time period was witness to a number of conditions and events which were responsible for giving rise to a number of bioevents during this time. Ordovician time period is characterized by â€Å"rapid replacement of the Cambrian fauna with the Paleozoic fauna† (Barnes et al ,pg 140). The biota during this period was modifying itself and adapting to the changing physical and chemical changes in the oceans. Most of the life forms of this period that adapted and existed successfully were the ones that were most severely affected by this extinction event. Almost 26% of all marine families and almost 85% of all genera went extinct. Today, there is a big scientific debate about how man’s activities is leading us towards the 6th mass extinction .Anthropogenic activities have affected the Earth and all living beings adversely such that the current rate of species extinction is much higher than the background extinction rate. Interaction between environmental and ecological factors has contributed significantly to the extinction event. One of the major culprits that contribute towards this is global change in climate while others include habitat destruction, pollution etc. But if we take the Ordovician mass Extinction into account we will see that it occurred not due to anthropogenic activities but by Nature’s own course. This vindicates the fact that even Nature plays a pivotal role in destruction and extinction. Climate change and habitat destruction occurred during the Ordovician-Silurian period which vastly affected the marine species and led to their extinction. After this most of these extinct species could not recover from the effects and hence led to permanent loss Research has tried to pinpoint the exact events that led to mass destruction of most marine life forms during this event however a few possible explanations have surfed even though the

SYSTEMS AND DATABASES - COURSEWORK Essay Example | Topics and Well Written Essays - 1000 words

SYSTEMS AND DATABASES - COURSEWORK - Essay Example Solution: A database solution would ensure better storage, addition, modification and deletion of resident records so that bed allocation is handled better. Bed allocation would not only help the care manager but also the placement officer to know the affordable rates for the beds for fund approval process. Databases namely Oracle or MySql server can be used for storing and retrieving the records of beds and residents. Problem definition: The nurse records are not well maintained for immediate allocation and is very difficult to know the availability of the nurses for resident allocation and assignment. Even their weekly payment hours are sometimes faulty. Solution: A database system with alerts (triggers) would be largely helpful in knowing the reorder level for nurse’s availability and their filling up with buffers so that patients are taken care and attended at all times. Solution: An information system should be well connected with the pharmacist who would ensure better and timely delivery of drugs for use by the home. Again the proposal for an interconnected system like that of ERP is most useful in such cases. It would not only manage the various elements but would also reduce their operation cycle time in terms of effort and time taken by the various actors like the care manager, nursing manager and others to accomplish a task. As the hospital demands quick and timely action to keep up with the patient’s medical demands, an ERP system would ensure effective data transfer and reduce their lead times (Ballou, 2002). Solution: The updation of records are essentially required for fetching the exact state of the patients at all times. The system must reflect that at every point of time as to the status of the patient. A database solution would ensure better management of the home and ensure a reflection of the