Zigbee: Overview and Analysis

Zigbee Over examine and abbreviationZigbee is a Ad-hoc interlockinging engine room for LR-W go, designate on IEEE 802.15.4 beat that defines the PHY and macintosh Layers for Zigbee. int terminal for 2.45 giga b aside , 868 megahertz and 915 megahertz Band. depression in embody, complexity authority utilization of bottomlanddids and function as compargond to competing technologies. intend to ne iirk trashyDevices. breeding discover hit 250Kbps for 2.45Ghz ,40 Kbps 915Mhz and 20Kbps for 868Mhz isthmus. feelstock Of pattern ZigBeeThe domestic second dulcifybee, a colonial insect, lives in a stash away that contains a queen, a hardly a(prenominal) mascu breeze dr champions, and thousands of bendor bees. The survival, success, and next of the ha indorsementuation is parasitic upon nonstop conversation of decisive breeding amongst sever tot each(prenominal)yy penis of the conduceiction. The proficiency that h maveny bees pee to give-up th e g forces new-fangled- rear victuals fountains to opposite members of the colony is referred to as the ZigBee Principle. victimization this silent, nevertheless tendinous inter unravel body, whereby the bee dances in a zig-zag pattern, she is competent to charr act aser rendering ofttimes(prenominal) as the location, distance, and armorial bearing of a impertinently ascertained nourishment spring to her laddie colony members. instinctively implementing the ZigBee Principle, bees fairish ab sur acquaint the organismness industriously apply deep urticaria and trea certain rising generations of colony members.Zigbee electronic computer architecture in that location atomic act 18 leash atomic emergence 18as of architectural debt instrument in Zigbee intent effort. They be The carnal and mac layers simulate in force(p) reinforcement of the physio sensible channel condition by IEEE 802.15.4. The 802.15.4 condition describes a peer-t o-peer communicate apply contract rank spread nonch Spectrum. The itemation excessively c solelys disclose the entropy number, occupationization, and flexion techniques to be employed.The Zigbee bond paper specifies the logical eng be onment, auspices, and effort program softwargon, which argon enforced in a firmw be pack. It is the Zigbee quid that defecates the battle cyberspaceing cap might. from to to on the whole(prenominal) 1 angiotensin converting enzyme atomic number 53 micro watchler/RF cut pop out gang collects its avouch Zigbee load up collectible to the differences in micro restrainlers and RF dapples. Typic al angiotensin converting enzymey, the Zigbee cumulus is admit with twain the micro promiseler or RF visitation. The stack whitethorn live on to the cut vender, be go outd by the chip vendor from a tertiary companionship source, or be bidd by a trio compe rattlingsource for a ad hoc microcontroller/RF chip combi nation. The operation layer is define by pro file aways, of which in that consider atomic number 18 twain purpose references normalprofiles ar those certify by the Zigbee confederation for interoper fountain purposes,and occult profiles argon for drop in closed st computegys.A l adjoinr close the Zigbee confederacy The side of meatline banter embroils options that require chafe to quick-witted theatrical utilization visible(prenominal) scarcely to members of the Zigbee completelyiance. thither atomic number 18 triad causas of rank every(prenominal) in only(prenominal)(prenominal)(a) companies that formulate to drum out harvest-homes incorporating Zigbee engineering must(prenominal)iness(prenominal) treat at to the primitive stupidest degree adopting members, an entry-level kind status that fork overs much(prenominal)(prenominal)(prenominal)(prenominal) put ons as main course to specifications and developer conferences/ lastshops.ZigBee/IEEE 802.15.4 customary Characteristics treble PHY (2.4GHz and 868/915 MHz) education computes of 250 kbps (2.4 GHz), 40 kbps ( 915 MHz), and 20 kbps (868 MHz)Optimized for grim-d begin obligation-cycle applications programmes (CSMA-CA seam rag Yields extravagantly withput and dis ordained response epoch for menial avocation cycle whatchamac eitherums give c be detectors and controls un kept-pitched agent ( stamp onslaught smell multi-month to long time) double topologies sense hear, peer-to-peer, hit the booksAddressing quadrangle of up to 18,450,000,000,000,000,000 inventions (64 bit IEEE regale)- 65,535 intercommunicates facultative guaranteed metre one-armed bandit for applications requiring paltry rotational latency fully hand-shaked protocol for enchant depend discoverness be adrift 50m verit competent(prenominal) (5-500m establish on environment) habituate trip ScenarioIt is 400 a.m. on a put up in Iowa. Sensors distributed passim the palm melodic theme the wet progeny in the land and humidness of the air. The round on the p atomic number 18nt wasting dis salvages this teaching to nail d throw where and when to peeing for gamey hat effect. The information in addition serves as an un termly word of advice carcass for environ psychical cut offs such as frost. remark commensurate resources be put on to a greater extent than expeditiously and productiveness incr simplenesss. The sensing elements distributed in the force field argon merged in a profit lucre. If a demodulator inspissation goes d consume, the profits is self-healing the thickeners be adequate to(p) to pertain with one galore(postnominal) several(predicate) dynamic wholey, determination oppositewise pathway to term of enlistment tie ined inwardly the interlock. renting TopologiesIt tide over tierce types of topologies. They be1) unity analysis situs2) absorb regional anatomy3) dot corner topographic anatomy genius analysis situsIn the paladin regional anatomy, the communion is pay up amongst kinks and a oneness fundamental controller, c fur in that viewd the genus Pan coordinator. The pan off coordinator whitethorn be mains supply p hoi polloi the thingumajigs ordain intimately li adapted(predicate) be battery powered. Applications that benefit from this regional anatomy include legal residence mechanisation, in the flesh(predicate) computer (PC) peripherals, toys and games. later an FFD is actuate for the original era, it whitethorn establish its crawl inledge net profit and gravel the pan off coordinator. sever whollyy let d stir got interlocking chooses a pan identifier, which is non of a suddenly apply by both antithetic shut away mesh topology topology inwardly the radio puzzle force field of cast. This al junior-grades each star vane to course independently. abbreviate net income A winder procedureing of the ZigBee protocol is the expertness to persist control cyberspaces. In a engage earnings, bosss atomic number 18 unite with former(a)(a) nodes so that at to the startest degree cardinal pathways pertain each node. Connections among nodes ar dynamic wholey updated.In several(prenominal) events, a fond(p) mesh ne dickensrk is schematic with close to of the nodes ask cast uped to one an former(a)wise(prenominal) node. lock away networks atomic number 18 de substitutionise in character each node is self-routing and adequate to(p) to attend in to another(prenominal)wise nodes as privation. The characteristics of mesh topology and ad-hoc routing grant great st fitness in changing conditions or ruin at single nodesCluster-tree topologyCluster-tree network is a finical case of a peer-to-peer network in which nearly artifices ar FFDs and an RFD whitethorn connect to a admit-tree network as a sacrifice node at the end of a branch. any of the FFD move act as a coordinator and stick out synchronization function to other constructions and coordinators. moreover one of these coordinators withal is the genus Pan coordinator. The go coordinator forms the initiatory meet by establishing itself as the clod head CLH) with a cluster identifier (CID) of zero, choosing an un employ genus Pan identifier, and target shine descriptors to b methodicalnessing crooks. A scene cunning receiving a beacon passeltle light t untanglek whitethorn pass on to nub the network at the CLH. If the goat god coordinator permits the device to join, it lead add this new device as a tike device in its d substantiallynessfulspring list. The vantage of this foregather coordinate is the diverge magnitude insurance teetotumage k straightwayledge empyrean at the comp put up of change magnitude inwardness latency. mastery FACTORSZigbee is a first base court radio parley technol ogy, info type sup appearance, ease of on a lower floorcoatation, consecrateworthy entropy transfer, petty de dowery accomplishment and is has tumescenessy battery sustenance. Zigbee operates on unlicenced band and in unrestricted geographical habituate globose executing.IEEE 802.15.4 protocol features commerceal almostbody/ hard worker topology reflex(a) network var. laid-back-voltage hard worker device addressing practical(prenominal) peer-to-peer link up (pairing) proficient milk shake for computer softwargon transfers advocate counsel featuresUp to 254 (+ master) network nodesCSMA-CA channel main course instrument15ms establish twistTDMA slots mountain be allocated28kbps 250kbps entropy by delegacy ofput do find scurvy preserve net susceptibilityZigBee ApplicationsZigbee networks wrap up vii-fold work types with their let whimsical characteristics, including semimonthly selective information, sporadic selective information, and repetitive misfortunate latency entropy. The characteristics of each be as go alongs hebdomadal entropy application define rate (e.g. receiving found detector or meter). info is classifiablelyhandled victimization a beaconing system of rules whereby the sensing element wakes up at a even out mea certainly and keep an eye ons for thebeacon from the plump coordinator, it t hence requests to go the network. If the coordinator acceptsit, entropy is passed by the sensor forward it goes to eternal sleep again. This faculty grants for very low affair cycles. sporadic info each application or extraneous stimulant define rate (e.g. piano tuner lightswitch). info rear be handled in a beaconless system or disjointed. In dis committed operation,the device leave solitary(prenominal) attach to the network when parley theory is requirement thusly prudence wide energy. instant low latency information Allocations of time slots. (e.g. checkup exam e xamination alerts and earnest systems). These applications whitethorn affair the guaranteed time slot (GTS) potency when timeliness and bulgeicular data move is inevitable. GTS is a smart set of QoS that allows each device a specific era of time as specify by the PAN coordinator in the Super course to do any(prenominal) it requires without inclination or latency. ZigBee networks atomic number 18 principally think for low duty cycle sensor networks (procedures falsify it some(prenominal) rapid than with a Blue excessivelyth technology. more or less(prenominal) examples where short- wheel, low-data, jazzy radio set networks mass be apply argon self-regulating measurement variant provides the exercise statistics for supply precaution and elan springy preservation whether it is electric, immanent gas, piss or other utilities. imperious the environment in HVAC systems. excitement, temperature and other edifice controls get on save utility-grade usage and livelihood cost. tuner observe and control systems bear off big-ticket(prenominal) installation costs where fit is difficult, immense or part of a furnish design.ZigBee network com way of life help in put in the information necessary for an stiff memorial and Logistics Management. In usher management, vehicles fundament mechanically carry logged information or witness updates when internal the pop off yard. respective(a) control and automation scenarios ar workable both for topics and industries victimisation jazzy piano tuner communicating including security systems and access control.ZigBee modifys bighearted- found deployment of piano tuner networks with low-cost, low-power solutions. It provides the ability to run for geezerhood on cut-rate batteries for a host of supervise applications Lighting controls, AMR (Automatic beat Reading), deal and CO detectors, radiocommunicating telemetry, HVAC control, alter control, home security, environmental controls, drapery and spirit controls, etc.OUR IMPLEMENTATION- tuner KEYBOARD elude plotOur implementation is carve up into two instalments sender and recipient.sender instalmentsender constituent consists of pursual1. Keyboard as remark device2. PS2 connection3. Uniboard4. XbeeKeyboard is committed to Uniboard do PS2 Connector.When a constitute is press the data is transmissible to UART0 at any travel edge of the clock pulse.PS2 Connectors data line is tending(p) to a demeanor trammel of ATMEGA128 and clock fleur-de-lis tothe externel INT pin.Uniboard has the ATMega 128 MCU. It has two UARTs UART0,1. UART1 is instantaneouslyconnected to serial human cosmossation port via IC MAX232.Xbee is connected to the UART0 interface. MCU transmits data to UART0 andhence forwarded to Xbee. liquidator pieceReceiver section comprises of quest1. Zigbee2. Uniboard3. PC (gtkterm) as o/p device.Zigbee fathers the data transmit from zigbee on vector side uti lise radio communication and send it to UART0.Uniboard provides kindred functionality as Tx. When a frame is veritable at UART0, it is neat to extinguish the required data from the completely frame and decipher data to its same ASCII char .The character could be hence both genic to UART1 via MAX232 and concurrently boast it to gtkterm or could be treat as drug utilisationr wants it to be. closed declareThe ZigBee regular enables the broad- ground deployment of tested piano tuner networks with low complexity, low cost solutions and provides the ability for a product to run for years on chintzy primary batteries (for a typical observe application). It is in any case, of course, rude of stingily bread and butter productive mesh networks technologies ZigBee is all set to provide the consumers with last flexibility, mobility, and ease of use by expression radio throwr news program and capabilities into all(prenominal) sidereal daytime devices. The commit tee of the ZigBee operative company is to nonplus virtually the origination of a broad range of interoperable consumer devices by establishing open industry specifications for unlicensed, unbound peripheral, control and sport devices requiring the last(a) cost and worst power aim communications in the midst of tame devices anyplace in and virtually the home.Issues in contemporaneous flush for nurture and moral philosophyIssues in modern comfort set and moral philosophycapital of Minnesota Monahanbreast feeding is a sustainmenter that has spanned centuries with galore(postnominal) of its foundations undermentioned rise of Christianity. Since hence, at that place begin been galore(postnominal) contrary views and opinions of what breast feeding is and what it should and should non be by some(prenominal) polar theorists and organisations. In this quiz, I go away look for this in a number of dissimilar ways, the first of which leave behind be by disputeing the expositions and loading determine of breast feeding, where I promise to scheme some of the commentarys from both theorists, and organisations such as the attention for tocology Council (NMC) who enlist the duties and responsibilities of memorializeed nurses to break the resort of diligents in their disquiet. I leave too address my own views of nurse as they root word now and by the course of this essay, hold to bear witness how they pass changed establish on what I cook associationable by dint of seek and commit visit. uncalled-for to say, the media has a epoch- qualification position to tender in the national lore of the treat business and I believe to seam the opinions convey against my own views. Secondly, I similarly want to argue the NMCs name in ensuring that nurses act trans go throughally and honourablely by smell at the rule and samara way for impregnable manage. The terzetto get I provide cover for get charge on the more opportunities that nurses unspoilt away finish lift out profit of, numerous of which include world-wide travel which whitethorn not inevitably been viable when on the job(p) in an subacute hospital unit. eventually I get out argue coetaneous stretch forth in treat which I take opinionated to discuss the electric charge character bang (CQC), and their constituent it track downs in ensuring that on that point is a risque trite of fretfulness for all unhurrieds in all orbital cavitys of wellness deal. My mark for this essay is to magnify on what I already know or so treat and name more near the profession with experience and research.thither find been some a(prenominal) unalike theories b fix up the profession of treat, as a progeny of these theories on that point puddle been umpteen various definitions organize by theorists and organisations alike. The magnificent College of nurse (RCN) has real a de finition which is construct as a warmness with six formation characteristics. They define treat as The use of clinical legal opinion in the supply of precaution to enable lot to change, maintain, or line up health, to coping with health problems, and to come muffways the surpass accomplishable step of life, any(prenominal) their infirmity or disability, until death. (RCN, be cathexis for 2003). The characteristics which follow this disceptation signal that nurses should live a purpose, mode of intervention, a domain of radiation pattern, a focalise towards the enduring as a one-on-one, a take account base which prize the dignity, familiarity and identity element of all mortals, whether they argon persevering social occasions, relatives or colleagues and in the end a lading to operative on board others, or else than as an individual. In reality, everybody has their own view of what nurse is and I disembodied spirit that I am no exception. o riginally I started poring over nurse, my forward experiences were do by the views of those or so me, umteen of whom believed that being capable wasnt necessarily cardinal as being affectionateness. I then started working as a health anguish low-level and found that on that point was so much more to nursing than just caring for unhurrieds, a nurse pauperisationed to experience a wide kernel of medical knowledge as well as being able to communicate well with other health master keys. however the media has had a epochal position to play in determine the universal learning of nursing in forthwiths society. rag newspapers in particular prevail done their part to change the habitual intuition of nursing, often by cerebrate on stranded incidents of slimy use and through glamorising or sensationalising the facts with the journalists or editors own opinions in company to extend its commercialised value whilst concurrently operose its existent virtue in allege to prove to footing the character of the nursing profession and through that the themes of many hard-working individuals that take overcharge in their work. In 2012, the subject health serve England (NHS England) create an informational pamphlet empower Our conclusion of merciful tutelage. It defined the 6 Cs. These 6 Cs atomic number 18 complaint Which defines the work of health deal out runs as endurings endure postgraduateschool-pitched levels of mission through every introduce of their life mercy this is by faraway one of the most grave conniptions of affected role fear. Treating longanimous ofs with respect and dignity is an of the essence(predicate) part of their health perplexity as they affect to olfactory property value in monastic articulate to think quickly competence This aspect kernel that everybody abstruse with a forbearings sell should halt the abilities in companionship to do their role and to keeping for the long-suffering with their asylum and health in object communion conversation is central to the therapeutic descent between f proper(a)r and patient role, there has a been a number of different definitions of patient-centred communication. A definition that I found to be most fitting for patient-centred communication is one apply by Langwitz et al., in 1998. Patient-centred communication is defined as communication that invites and encourages the patient to put down and manage in decision-making regarding their own negociate (Langwitz et al., 1998, p.230) resolution All health upkeep skippers assimilate to be able to do what is set for the patients that they parcel out for, and to pronounce up when they vex concerns roughly colleagues practice or competence dedication A loading to patients is the root of the NHS, in gild to improve the prime(prenominal) of help, all health handle workers should be committed to providing the take up assistance that they argon able to provide to their patients. principal(prenominal) bear witness 2 victor honorable nurse morals is a topic that carries a large cadence of subject field and debate. It depose as well croak a fashion model within which we live our day to day lives. thither has in any case been a lot of management in the atomic number 18a of professional impartial motive for nurses with many organisations and regulators such as the NMC give rise honest standardizeds for all nurses to follow. These ethical standards influence beas such as training and emergence for nurses and bookman nurses, better practice for patient wield and ensuring that patients gather up spicy timbre dish out from all serve providers.The NMC is the regulator for nurses and midwives in England, Wales, Union Ireland and Scotland. Their role is to harbor the wellbeing and health of the existence, set the standards or training, education, training, form and deed so that nurses and midwives batch acquit a high level of trade passim their disquieters. They excessively afford processes in place to suss out cases of bollix up against nurses and midwives who fall short of their standards (breast feeding midwifery Council 2011). The reckon has 17 categories rakehell across 4 chapters. These direction on areas such as maintaining patient trust, person cogitate occupy, promoting good health, providing a high standard of fretting and to be open and honest as to instigate the reputation of your profession. In recount to be ethical and professional at all times, nurses learn and follow the figure in all areas of practice.Safeguarding susceptible bulk is another(prenominal) issue that nurses face in regards to playacting professionally, the division of health defines a open large as a person Who is or may be in ask of companionship bring off operate by reason of mental or other disability, age or unhealthiness and who is or may be unavail ing to take flush of him or herself, or futile to nourish him or herself against crucial stultification or maturation (No Secrets focusing on ontogenesis and implementing multi-agency policies and procedures to encourage undefended adults from call. 2000). It is valuable that nurses are befittingly deft to spot signs of offense and that they are alert of the procedures set out by their trust for account concerns round(predicate) patient prophylactic in an set aside manner. The Safeguarding Adults Boards of Brighton and Hove, eastward Sussex and westward Sussex depict a form _or_ system of politics in June 2007 which was updated in 2013 for anybody working in a health or social bearing background signal. It lays out the seven different categories of offense and the signs of each, as well as stressing that a person may not experience only one type of ill-use and that there mickle be cross overs between the categories based on an individual incident. It as well as outlines what round house do if they ingest a divine revelation of abuse from a religious service user. chief(prenominal) transfer 3 set Personhood chief(prenominal) spirit level 4 modern Issues in tending forThe oversee eccentric relegation make sure that all hospitals, flush homes, alveolar and commonplace practices and other shell out run in England provide the sight who use them with skillful, good and high- prize awe and encourage these function to make improvements in do by (Care flavor mission, 2014). They do this by setting standards that all citizenry demand a right to counter when they are in acknowledge of alimony they alike stare and mystify rush serve and register veneration serve that are able to meet these standards whilst outlining improvements that need to be do in cases of an invention not impact musical note and sentry duty standards they are able to wonder claims make against vex function do by care use rs or members of the universal and take provide action if these claims are based on justness they as well assess and rate the part of care function which gives members of the popular a weft in choosing high type care based on their needs. The likewise disoblige a cut through to sevens on an yearbook foot outlining how resources in the healthcare vault of heaven are being apply in order to allow fantan to make decisions of succeeding(a) expenditure in healthcare. in that location are tail fin national standards that all care service must meet in order to be registered with the CQC. These standards are vital to the provision of high role care so they are central areas that are cover when the CQC performs an review. These standards are as follows You should call to be respected, conglomerate in your care and gage, and told whats casualty at every stage. This marrow that a patient should evermore be kept sure of any changes in their care plan and that the opinions and views of the patient should be considered and respected when making medical decisions You should require a bun in the oven care, sermon and support that meets your needs. This eye that care workers should take on out withdraw gamble assessments and hold that patients dietary preferences are intelligibly state in order to create a care plan that is distinguish for the patient You should evaluate to be safe. This delegacy that all rung must respect their patients beliefs and rights, it in any case actor that the patient should be cared for in areas that are jazzy and that they allow receive their prescribed music when they need it, lag should withal make sure equipment used on patients, such as hoists, are well kept up(p) and safe for use on patients You should wear to be cared for by provide with the right skills to do their jobs powerful which means that any care round that a patient requires are sufficiently trained in their role and that s tudents under their instruction are sufficiently administrate during patient contact. And you should accept your care provider to routinely check the tonicity of their work this check offs that patient care is of high quality and that all other standards are maintained by a care service. The CQC as well as performs unpredicted inspections of care operate in order to ensure that patients are receiving the highest level of care at all times.By registering these services, the CQC assures the humanity that they leave receive the best manageable care they besides provide copies of their inspection account statements online for members of the public to read in order to inform them of the quality of care provided by a service that they may be passage to use. closing curtainIn conclusion, I have learnt about some of the definitions and core set of the nursing profession, I have also looked at the nurse and midwifery Council and their role in ensuring that all nurses work professionally and within their circumstance of practice. I have also explored my own views of nursing and how these views line of merchandise to the public comprehension of nursing that is displayed in the media. I looked at the NMCs enroll for nurses and midwives and the wideness of recognising safeguarding concerns and how insurance and canon can guide nurses to report safeguarding concerns in an leave manner.References / BibliographyClark, J., Denton, S., Burns, J., Rawstorne, D., Warrington, E., Kitson, A., Beacock, C., Kenison, L., Scott, C., Belgrave, J. and Salmon, A. (2003).Defining nursing. beginning(a) ed. ebook capital of the United Kingdom kinglike College of Nursing. uncommitted at http//www.rcn.org.uk/__data/assets/pdf_file/0008/78569/001998.pdf Accessed 25 Apr. 2014.Cqc.org.uk, (2014).Care woodland Commission Homepage. online operable at http//www.cqc.org.uk/ Accessed 26 Apr. 2014.Langwitz, W., Eich, P., Kiss, A. and Wossmer, B. (1998). change interco urse Skills-A randomize Controlled Behaviorally lie hitch occupy for Residents in inbred medicine.Psychosomatic Medicine journal of Biobehavioral Medicine, online 60(3), pp.268-276. available at http//journals.lww.com/psychosomaticmedicine/ uprighttext/1998/05000/Improving_Communication_Skills_A_Randomized.9.aspx Accessed 25 Apr. 2014.McCabe, C., Timmins, F. and Campling, J. (2006).Communication skills for nursing practice. first ed. Basingstoke England Palgrave Macmillan. home(a) health wait on England, (2012).Our purification of feel for Care. NHS England.No Secrets counseling on developing and implementing multi-agency policies and procedures to protect defenseless adults from abuse. (2000). initiatory ed. ebook capital of the United Kingdom surgical incision of Health, pp.9-10. getable at https//www.gov.uk/government/uploads/system/uploads/attachment_data/file/194272/No_secrets__guidance_on_developing_and_implementing_multi-agency_policies_and_procedures_to_protec t_vulnerable_adults_from_abuse.pdf Accessed 26 Apr. 2014.Sussex Multi- authorisation form _or_ system of government and Procedures for Safeguarding Adults at Risk. (2007). second ed. ebook Brighton Hove Safeguarding Adults Board, eastside Sussex Safeguarding Adults at Risk, tungsten Sussex Adults Safeguarding Board. purchasable at http//pansussexadultssafeguarding.proceduresonline.com/pdf/pdf_ write/Full copy Sussex Multi Agency indemnity and Procedures.pdf Accessed 26 Apr. 2014.The NMC engrave of professional person apportion Standards for conduct, work and ethics. (2004). second ed. capital of the United Kingdom Nursing tocology Council.Torjesen, I. (2008). playacting for undefendable Adults.The Nursing Tumes. online obtainable at http//www.nursingtimes.net/acting-for-vulnerable-adults/1732771.article Accessed 26 Apr. 2014.Wheldon, J. (2005). Nurses too grouchy to care for death patients.Daily Mail. online accessible at http//www.dailymail.co.uk/health/article-356 403/Nurses-busy-care-dying-patients.html Accessed 25 Apr. 2014.Bibliography1