Pollution Essay Example | Topics and Well Written Essays - 1000 words - 1

Pollution - Essay Example This condition of remaining free of ice is highly dependent on the water currents and states of the weather. The Polar Bears usually favor such areas which enable them to hunt for seals in these spots of leads and makes use of the sea ice to be their podium (Sea World, â€Å"Distribution and Habitat†). In the similarly context, polynyas are water areas which are bounded by ice all around the year because of tidal currents, winds and upwelling. These areas are considered to be significant as they serve as major food supplying and breeding regions for wintering marine mammals such as the Polar Bears. Few of the Polar Bears were learnt to chase the lower border of the floating sea ice throughout the year and makes widespread relocations according to the retreats and proceeds made by the ice (Sea World, â€Å"Distribution and Habitat†). The population of the Polar Bears has been found to be declining at an alarming pace because of their disappearing habitat owing to global warming. The various reasons accounting for the alterations in the climate has resulted in speedy loss of ice in the Arctic sea. The ice in the Arctic sea was found to turn down by 7.7 percent every decade along with a turn down in the sea ice in the perennial sea region by 9.8 percent every decade. To add more to this problem, in few of the areas, a contraction of the ice in the Arctic sea was found to be 32 percent from the periods of 1960 and 1970 to 1990. This huge decline in the ice areas have resulted in jeopardizing their habitat of the Polar Bears which is posing to be a severe threat to their population (World Wildlife Fund, â€Å"Polar Bear: This icon of the North Is Losing Ground As Global Warming Melts its Sea Ice Habitat†). Moreover, the ice is examined to melt quite before time in a year and is taking more time to develop owing to the alterations in the climate. This

Changing for Better Outcome Essay Example | Topics and Well Written Essays - 750 words - 1

Changing for Better Outcome - Essay Example As application of CASS procedure would significantly reduce VAP cases, and any nurse working in units with vent-dependent clients should support the application of this procedure. Nursing accountability to clients would mean that they are accountable for implementing this practice safely. The application of the CASS procedure requires proper staff training, and nurses who care for vent-dependent clients should attend these training courses and in-services. Moreover, when nurses are competent to perform this procedure, they should strictly follow its guidelines. The additional mechanical suctioning apparatus only takes effect when monitored on hourly basis by nurses. The tubes may be disconnected due to built up pressure or by being accidentally hit by other staff members, thus frequent monitoring is a must. The aspiration function also stops automatically when the collection bottle for secretions is full. The negative pressure of the suctioning apparatus is set at proper level accord ing to secretion status of a particular client. Following evidence-based practice would guarantee for uninterrupted application of CASS procedure. To exemplify, the following sections present a potential client for such practice, as well as an understanding of my accountability as his nurse. VAP was not new to a vent-dependent client in my unit because this 59 year old male client had VAP almost monthly, if not biweekly. This client was in a comatose state. He had a diagnosis of chronic obstructive pulmonary disease (COPD).