roundaboutthere

Wednesday, October 25, 2006

Home care

Home care, also known as domiciliary care, is health care provided in the patient's home by healthcare professionals often referred to as home health care or formal care; in the United States, it is known as skilled care or by family and friends also known as caregivers, primary caregiver, or voluntary caregivers who give informal care. Often, the term home care is used to distinguish non-medical care or custodial care, which is care that is provided by persons who are not nurses, doctors, or other licensed medical personnel, whereas the term home health care, refers to care that is provided by such licensed personnel.

Home Care and Home Health Care are phrases that are used interchangeably in the United States, by both laypersons and professionals, to mean any type of care given to a person in their own home. Both phrases are used interchangeably regardless of whether the person requires Skilled Care by professionals or not.Home care aims to enable people to remain at home rather than use residential, long-term, or institutional-based nursing care. Care workers visit service users patients in the person's own home to help with daily tasks such as getting up, going to bed, dressing, toileting, personal hygiene, some household tasks, shopping, cooking and supervision of medication.

Wednesday, October 18, 2006

Multicellular organism

Multicellular organisms are those organisms consisting of more than one cell, and having differentiated cells that achieve specialized functions. Most life that can be seen with the naked eye is multicellular, as are all animals and plants. A group of similarly differentiated cells performing a function in a multicellular organism is known as a tissue. Although some single-celled organisms, such as mycobacteria, have differentiated cells, the differentiation is less dramatic than that usually found in multicellular organisms.

A multicellular organism can work on a number of levels. For instance, a sponge works on a cellular level as the different cells are almost like many separate organisms co-operating jointly for a common goal. This is illustrated by the fact you can put a sponge in a blender and the cells of the sponge will aggregate again to form another sponge. They have no tissues, organs or organ systems which require a higher level of organization. More advanced organisms such as jellyfish, coral and sea anemones work on a tissue level of organization, as their cells can aggregate to form different tissues. For instance, a jellyfish has an outer epidermis and an inner gastrodermis, an example of different tissues to serve a different purpose.

Thursday, October 05, 2006

Solar System

The Solar System, is the stellar system comprising the Sun and the retinue of celestial objects gravitationally bound to it: the eight planets, their 162 known moons, three currently identified dwarf planets and their four known moons, and thousands of small bodies. This last category includes asteroids, meteoroids, comets, and interplanetary dust.

The principal component of the Solar System is the Sun ; a main sequence G2 star that contains 99.86% of the system's known mass and dominates it gravitationally. Because of its large mass, the Sun has an interior density high enough to sustain nuclear fusion, releasing enormous amounts of energy, most of which is radiated into space in the form of electromagnetic radiation, including visible light. The Sun's two largest orbiting bodies, Jupiter and Saturn, account for more than 90% of the system's remaining mass.