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AIM: This paper is a report of a study to identify how nurse clinicians learn with and from each other in the workplace. BACKGROUND: Clinicians' everyday practices and interactions with each other have recently been targeted as areas of research, because it is there that quality of care and patient safety are achieved. Orientation of new nurses and doctors into a specialty unit often results in stress. METHOD: An ethnographic approach was used, including a 12-month period of fieldwork observations involving participation and in-depth interviews with nurse, doctor and allied health clinicians in their workplace. The data were collected in 2005-2006 in a paediatric teaching hospital in Australia. FINDINGS: The findings were grouped into four dimensions: orientation of nurses, orientation of medical registrars, preceptoring and decision-making. The orientation of new staff (nursing and medical) is a complex and multi-layered process which accommodates multiple kinds of learning, in addition to formal learning. Workplace learning also can be informal, incidental, interpersonal and interactive. Interactive and interpersonal learning and the transfer of knowledge include codified and tacit knowledge as well as intuitive understandings of 'how we do things here'. CONCLUSION: Research into how nurses learn is crucial for illuminating learning that is non-formal and less recognized than more formal kinds. To provide a safe practice environment built on a foundation of knowledge and best practice, there needs to be an allocation of time in the busy workday for learning and reflection. [ABSTRACT FROM AUTHOR]

Ultra-High-Molecular-Weight-Polyethylene (UHMWPE) is the material of choice for one of the articulating surfaces in many total joint replacements, notably hip and knee prostheses. The various methods used by the orthopaedic biomaterials industry to sterilize and anneal UHMWPE components, and the resulting oxidation and crosslinking, affect the mechanical wear resistance properties in ways still unknown at the microscopic and molecular levels. Transmission electron microscopy and chemical pyrolysis were used to quantify crosslinking induced by gamma irradiation and annealing in air. Changes in lamellar stacking and the amount of crosslinking suggest two types of crosslinking: relatively unstable crosslinks in the amorphous region initially resulting from gamma irradiation which are later replaced by more thermally stable crosslinks resulting from rearrangements at the annealing temperature. Lamellar mobility, the ability of crystalline lamellae to flow in the material, is enhanced during the transition from one type of bond to the other, and this appears to optimize near eight hours of annealing time. Results from decomposition and percent crystallinity measurements provide further support for this theory. [ABSTRACT FROM AUTHOR]

Aim To determine if a suitable method of measuring nursing workload could be developed in neonatal intensive care units (NICUs).Background Nursing is a multifunctioning activity and previous methods measuring the demand for nurses do not put enough emphasis on the individual capabilities. The reporting of NICU activity has traditionally been related to bed occupancy and the number of infants requiring ventilator support. A classification system based on activity, hours of care and nursing staff ratios has been used; however, it does not consider the clinical ability of the individual nurses.Methods A 5-month prospective study was undertaken in which nurses in two NICUs scored their patients' level of dependency and professional assessment of the level of intensity of care required by the infants in each shift. In addition, serial measures of severity of illness scores for each patient were collected.Key issues The study identified methods of measuring workload that consider the individual nurse's ability and contributing organizational factors. We found that the estimates of nursing hours using the two traditional dependency measures did not match the current practice or take into account the skill of the nurses. A method in which the nurses indicated the intensity of nursing care required by their patients was suitable one for capturing their individual capabilities. System factors were also found to contribute to the nursing workload.Conclusions It is not sufficient to use patient acuity or severity of illness alone. Other factors such as the nurse's assessment of the intensity of care required and the organizational factors are important components of workload estimates. [ABSTRACT FROM AUTHOR]

Amorphous metal alloys sometimes contain order beyond that of a simple glass. The paracrystalline model for such a metallic glass is described and its predictions compared with published data. These data were obtained by the recently developed technique of fluctuation electron microscopy (FEM), which is also described. The paracrystalline model results compare well with data from a sample that, from its diffraction pattern, was clearly polycrystalline, although with very small crystallites. The model predicts only small FEM signals from samples that appear to be amorphous by their diffraction patterns. [ABSTRACT FROM AUTHOR]

In neonatal care, decisions are made on behalf of newborn infants by their parents or, in some instances, health professionals. This paper examines how the best interest standard is the most appropriate focus for decision-making concerning neonates. The components of surrogate decision-making are discussed from the perspective of the neonate's interests and the contribution of the various persons involved in caring for neonates. An argument is presented for the use of best interests when making decisions and the interpretation of best interests is explored. By examining the ethical approaches using best interests, an argument is put forward for caring as an expression of best interests. How some nurses use the best interest standard in their practice is described. The unique perspective nurses may have because of their philosophy, circumstances, experience and concern for neonates is discussed. Examples are used from the literature to support the argument for nurses being in roles and relationships where the neonate's interests are the basis of practice. How nurses classify infants on the basis of their future outcome is used to illustrate how nurses can apply the best interest standard. Ethical approaches of care and cure are used to show the best interest standard as applied to neonates. Caring as an expression of best interests is recommended for nursing decisions and actions using infant outcomes as a focus for caring and best interests. [ABSTRACT FROM AUTHOR]

During 1995-1997 a study was undertaken to explore the extent to which theoretical knowledge acquired through a distance education programme in neonatal nursing was brought to bear in the real-world clinical reasoning of course participants. The study utilized a think aloud technique and included both concurrent (on-the-job) and retrospective verbal reports at 0, 6 and 12 months into the programme. Participants (n=4) were also interviewed individually on completion of the study. Results indicated that important inconsistencies existed between participants' theoretical knowledge and their practice; they also pointed to some organizational influences on these theory-practice inconsistencies. Script (or schema) theory provided a useful explanatory framework for these results. The paper includes a brief description of data collection and analysis techniques; its main emphasis, however, is on these theory-practice inconsistencies and their explanation in terms of the nature and acquisition of nursing practice scripts. The implications of nursing scripts for the promotion of critical thinking and evidence-based practice are discussed. [ABSTRACT FROM AUTHOR]

This article examines the involvement of neonatal nurses in ethical issues, achieved through a survey of Australian neonatal nurses. The aim was to discover if nurses were involved in ethical decisions, to examine various categories of neonates and the concerns that nurses felt about them, and to determine the extent to which nurses saw themselves as advocates. A response rate of 65% was achieved from nurses in two states who worked in intensive care and special care nurseries. The findings show that nurses were more likely to be involved in clinical decision making than in ethical decision making, showed the greatest concern for infants who had an uncertain prognosis, and saw themselves as advocates for their patients. The issues surrounding these findings are examined. [ABSTRACT FROM AUTHOR]

Although there exists a substantial body of knowledge concerning the effects of various individual factors upon reaction time, not so much is known about their interactive effects, particularly when they include variables of a motivational sort. Two experiments were run in an attempt to clarify the relations among manifest anxiety, experimentally induced stress, and various task variables in RT. The results offered no convincing evidence that variations in amount of anxiety affected RT in any manner, either as a main effect, or as a function of stress, task complexity, stimulus intensity, or generalization. The effect of experimentally induced stress was also unclear. Various theoretical issues concerning the concept of manifest anxiety were discussed in the light of previous findings and the present results.