Reflection 3 Essay Example | Topics and Well Written Essays - 1250 words

Reflection 3 - Essay Example There should be that feeling of respect for the old. Most of the older people in the community do not have specific needs which can be outlined but it appears that they are less likely to receive such care because of their age in the society. Many people including practicing nurses tend to ignore them when offering health and social care in the society just because of their inherent age. Nonetheless, my intention as a practicing nurse in this aspect of health and social care is to take care for the old people in the community who need a lot of care at their ages. They need to be encouraged, given mental counseling, advising them on how to undergo treatments, administering to them medicines among other ways ((Bayer, Tadd, & Krajcik 2005, p. 22) The advances to help the old people in the community have been made initially by other people, but as far as this model is concerned, a lot of reflection, further action and improvement is required. This work will help encourage nurses to develop and grow a positive attitude towards the old people in the society as well as help them embrace positive aspects of respect and help them to understand that old people are very important members of the society who can control their own lives. This will encourage nurses to value the old people, and to take care of them as well as promoting opportunities for well-being and psychological developments rather than promoting helplessness and deterioration (Williams & Irurita 2005. p 501). This idea of health and social care for the old people presents a challenge for us as nurses to change from a medical perspective and to focus more on health promotions as well as preventing ill health among the old people. This ensures that majority of these older people enjoy healthy and fulfilling lives just like the other members of the community and that they can make a positive contribution to the community (Bayer, Tadd, & Krajcik

Scientific discoveries Essay Example | Topics and Well Written Essays - 500 words

Scientific discoveries - Essay Example Molecular electronics face two types of challenges. The first challenge is building molecular structures that act as switches and the second challenge is combining these molecules into a complex circuit in order that they are able to perform a specific function. These two tasks demand reproducible organic molecular conductors and insulators. Polyphenylene based molecules besides carbon nanotubes have been considered as possible candidate molecules capable of these tasks (3). In October 2009 a team of researchers led by bio-designer N. J. Tao reported success in the development of key electrical component of the diode on a phenomenally tiny molecular scale, namely the single-molecule diode. (4). Diodes constitute critical components for a wide range of applications that include power conversion equipment, radios, logic gates, photodetecters and light emitting devices. In all these applications diodes make up the components that permit current to flow in one direction, but not in the other direction in an electrical circuit. To bring this specific function down to the level of a molecule, the molecule should be physically asymmetrical, where one end of the molecule has the capacity to form a covalent bond with the negatively charged anode terminal and the other end capable of bonding with the positively charged cathode terminal. A symmetrical molecule allows current to flow in both directions, which is similar to an ordinary resistor. On the other hand an asymmetrical molecule allows current to flow in only direction similar to a diode, which is the more important and difficult component to replicate. With the size of a transistor in the field of electronics nearing a few te n nanometers or about twenty times larger than a molecule, the development of a molecular diode is exciting. (5). The Tao led research team studied conjugated molecules for the purpose of developing a molecular diode. In conjugated molecules the atoms are stuck together by alternating