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Biomedical subjects

W L Watson

Publications and source records attributed to W L Watson.

16 recordsLinked to original sources
PubMed2001

Identification of the components of taste mixtures by adults and children.

Recently, it was reported that cognitive factors may have impeded the analysis of binary taste mixtures by 8- to 9-year-old children, resulting in them identifying only the strongest component in each mixture compared to adults who identified both components (Oram, Laing, Freeman, & Hutchinson, 2001). The current study aimed to overcome this limitation by employing different training procedures and different instructions when conducting the task. In particular, the training involved familiarization with the two stimuli at several levels of perceived intensity to facilitate identification of the varying levels of each stimulus in mixtures. Using a selective attention procedure, adults and children were required to identify the components of stimuli that contained water, sucrose (sweet), sodium chloride (salty), or were binary mixtures of these two tastants. Both groups were successful in identifying the component(s) in each stimulus, demonstrating the importance of appropriate training and test procedures when studying the sensory responses of children. Together with data from the earlier study by Oram et al. (2001) it is concluded that 8- to 9-year-olds have the cognitive skills to analyze taste mixtures in terms of the identity of the components and their perceived strengths.

Adolescent↗
PubMed2001

Qualitative estimates of soil disturbance in the vicinity of CANDU stations, utilizing measurements of 137Cs and 210Pb in soil cores.

Anthropogenically derived 14C has been used to trace recent carbon input in a study of carbon accumulation and turnover in Canadian soils. In order to do so, documentation of the undisturbed nature of the soil horizons sampled was of prime concern. Although all the sites chosen for coring were currently uncultivated, detailed information on long-term land usage was not available. To overcome this problem, 137Cs profiles were measured in all the cores used in the study. 210Pb measurements were also made in cases where total 137Cs deposition was lower than predicted. For some sample sites, the data obtained showed correlated losses of both radionuclides, indicating that land disturbance and/or erosion had indeed occurred in these areas over the past 50 years, hence invalidating the use of those cores for carbon cycling studies. In a few cases a marked lack of correlation between these two radionuclides has made it necessary to hypothesize that chemical, rather than physical, processes have been partially responsible for the observed anomalies. Since results of this nature raise doubts about the reliability of the 137Cs method for identification of land disturbance, further investigation is warranted.

Agriculture↗
PubMed2000

Injury surveillance in Victoria, Australia: developing comprehensive injury incidence estimates.

This study aimed to develop an estimate of the incidence of all medically-treated injury by level of severity and to broadly describe the epidemiology of injury in the Australian State of Victoria in a given year. Victoria has developed a relatively comprehensive injury surveillance system. Data is currently collected by various agencies on injury deaths, hospitalisations and emergency department attendances. The method used to establish the incidence of both unintentional and intentional injury is described. Incidence figures were directly derived, or estimated from, the available Victorian health sector and Coronial data bases for three level of severity (deaths, hospitalisations and medical treatment only) and for causes of injury, age and gender groups, location of the injury event and activity at the time of injury. In 1993/1994, injuries resulted in at least 1487 deaths, 67,402 persons hospitalised and an estimated 397,160 medically-treated, non-hospitalised injured persons in Victoria. In total, over 466,000 people were injured or 10.5 persons per year for every 100 residents. Males sustain 62% of all injuries yet represent 49.5% of the population. Almost three-quarters of injury fatalities and over 60% of non-fatal injuries occur among males. Young people aged 15-24 years account for 22% of all injuries yet represent only about 16% of the Victorian population. Children (0-14 years) also suffer relatively high injury rates, although mainly less severe, while the elderly are at risk of more severe injuries. The leading cause of injury death in Victoria is suicide, followed by motor vehicle accidents, whereas falls are the leading cause of all non-fatal injury. Most injuries occur in the home (36%), areas of sport and recreation (12.5%) and transport (11.7%). They are mainly associated with leisure activities (33.1%), work (11%) and transportation (10.8%). This study demonstrates a method for the development of comprehensive injury incidence estimates. The results indicate that injuries have a significant impact on the Victorian community, health care system and economy in general. Reliable incidence data are necessary for descriptive epidemiology and provide the basis for quality of life and economic cost studies. Together this information has potential application for evidence-based strategic planning and evaluation in injury research and prevention.

Adolescent↗
PubMed1994

A nontraditional approach to family violence.

Family violence has often been conceptualized as a linear phenomenon in which perpetrators commit acts intended to hurt victims. Intervention in these circumstances involves treating the perpetrator and the victim individually. In contrast, this article presents a Systemic Belief Approach to the situation of mutual family violence. A case example illustrates the influence of beliefs on the occurrence of violent acts between family members (in this case, sole-parent mother and adolescent daughter). Family systems nursing interventions such as reflective questions and reflecting teams are used to challenge the family's constraining beliefs, which enables the coevolution of facilitative beliefs that invite healing.

Adolescent↗
PubMed1994

A family systems nursing approach to hypertension.

This article focuses on a family systems nursing approach for essential hypertension. A case example is presented that describes the approach with a hypertensive woman with agoraphobia symptoms. A clinically significant decrease in the client's blood pressure occurred following the family sessions. Clinical observations of improved family relationships and symptom reduction corroborate research findings on the variables of perceived stress, anxiety levels and family coping resources. Interventions such as split-opinions, reframing, and rituals are described.

Agoraphobia↗
PubMed1993

Is there life after suicide? The systemic belief approach for "survivors" of suicide.

Following suicide of a loved one the lives of survivors can be plagued with anger, sadness, shame, guilt, health problems, and agonizing questions. This report presents the Systemic Belief approach to assisting survivors. A case example illustrates the influence beliefs have on survivors' lives. Constraining beliefs are challenged and facilitative beliefs are coevolved through the healing impact of family systems nursing interventions such as therapeutic letters, interventive questions, rituals, and reflecting teams.

Adaptation, Psychological↗
PubMed1993

The use of child safety restraints with nursery furniture.

In Australia, nursery furniture is associated with just over 6% of all injuries to children between birth and 3 years of age and 19% (or almost one in five) of all injuries in the first year of life. In the case of injury associated with prams or strollers and high chairs, the vast majority of injuries occur as the result of falls (75 and 83% respectively). Interviews with parents whose children suffered an injury as a result of a fall from a pram or stroller or from a high chair indicate that only a small proportion of the children (28 and 25% respectively) were wearing any form of safety restraint prior to their injury despite the fact that, in both samples, the percentage of safety restraints fitted was about 80%. The potential for serious injury from such falls is great as most injuries in both groups (96 and 75% respectively) were to the head. One death associated with a stroller and one death as a result of a fall from a high chair have been recorded for Victoria between 1985 and 1988. In the absence of mandatory requirements for the design and manufacture of nursery furniture, there is a need to provide information about nursery furniture safety to parents and care-givers through nursery furniture retailers and through maternity hospitals and child health centres. In particular, the promotion of the correct use of an appropriate and effective child restraint is a relatively simple and inexpensive measure that could prevent up to 80% of all injuries associated with the three items of nursery furniture most often related to injury: strollers or prams, high chairs and change tables.

Accidental Falls↗
PubMed1990

A family systems nursing approach to premenstrual syndrome.

The paper presents a family systems nursing approach to premenstrual syndrome. The interaction between premenstrual syndrome and family dynamics becomes the focus for the clinical nurse specialist and her team. A case example illustrates the use of the interview guidelines of hypothesizing, circularity and neutrality and various systemic-strategic interventions. through this process the couple's maladaptive patterns of interaction are interrupted. Symptom prescription, symptom sharing, symptom escalation, and positive connotation are among the creative interventions used to release premenstrual syndrome from its triangulated position in the marriage.

Adaptation, Psychological↗
PubMedDate not supplied

Mandatory bicycle helmet use: experience in Victoria, Australia.

On July 1, 1990, the legislation requiring wearing of an approved bicycle (safety) helmet by all pedal cyclists, unless exempted, came into effect in Victoria, Australia. The paper describes the more important activities which paved the way for this initiative and presents some preliminary information about the effect of the legislation on wearing rates and head injuries. Since 1980 there has been promotion of helmet use through bicycle education in schools, mass media publicity, support by professional organizations and community groups, bulk purchase schemes, and government rebates for helmet purchases. The Australian Standard for bicycle safety helmets has also been changed to meet community demands for lighter helmets with more provision for ventilation. There has been a steady increase in voluntary helmet use in Melbourne from 1983 to March 1990, as follows: 5% to 70% in primary school children; 2% to 20% in secondary students; and 27% to 40% in adults. In the period after the legislation, with relatively little enforcement, these three groups have shown substantial increases in helmet use rates, rising to 70-90% in most cases. Preliminary data show that the numbers of bicyclists with a head injury have dropped in the period since the legislation came into effect. The possible contributions to this reduction, of less bicycle use and lower risk of head injury in an accident, are discussed.

Australia↗