2,036 research outputs found

    28 years of vegetation change (1978 – 2006) in a calcareous coastal dune system

    Get PDF
    Changes in vegetation structure and composition over a 28 year period (1978–2006) following removal of human-induced disturbances, were examined in a calcareous coastal dune system in Point Nepean National Park (380 19’S, 1440 41’E) in south-eastern Victoria, Australia. In the early 1980s human habitation of Point Nepean was abandoned and disturbance regimes such as burning, slashing and land clearing were altered or removed, providing an opportunity to study the recovery of disturbed coastal vegetation. Broad-scale and community-level vegetation changes were assessed by comparing quadrat and GIS mapping data from 1978 with data collected in 2006. Results indicate a change in broad vegetation patterns; shrubland vegetation has replaced hind dune grasslands and disturbed areas and there has been a decrease in exposed coastal areas (such as blowouts, dunes and cliffs), and an increase in woody native species and highly invasive woody weeds. The changes highlight the importance of incorporating vegetation states in planning management actions in dynamic coastal vegetation

    Techniques and issues in breath and clinical sample headspace analysis for disease diagnosis

    Get PDF
    Analysis of volatile organic compounds (VOCs) from breath or clinical samples for disease diagnosis is an attractive proposition because it is noninvasive and rapid. There are numerous studies showing its potential, yet there are barriers to its development. Sampling and sample handling is difficult, and when coupled with a variety of analytical instrumentation, the same samples can give different results. Background air and the environment a person has been exposed to can greatly affect the VOCs emitted by the body; however, this is not an easy problem to solve. This review investigates the use of VOCs in disease diagnosis, the analytical techniques employed and the problems associated with sample handling and standardization. It then suggests the barriers to future development

    An Exploration of the Importance of Design in Branding

    Get PDF
    The purpose of this thesis is to explore how good design is used to enhance and communicate a brand’s image. At its core, a brand is a personality. Thoughtful marketing and good design are tools that can effectively communicate that personality. The products, promotions, and experiences that your company presents should resonate with your target audience and illicit an emotional response that matches your brand. My thesis consists of two major sections. The first section is an accumulation of research and personal observations on how brands function in our society today. In this section I will define what a brand is, discuss the importance of design within a brand’s structure, and compare two existing brands to illustrate how design communicates different experiences for consumers. The second portion is an exercise where I have created the entire identity for my own fictitious brand. Using the ideas, concepts, and philosophies I researched in the first section, I created my brand, Beep, Beep! Sweets. Beep, Beep! Sweets is a innovative, fresh company that strives to bring naturally sweet cupcakes to its consumers with its new line of Cupcake Trucks. The design package includes a logo, office pieces, truck materials, promotions, and media platform designs. For each elements I have explained my design decisions

    Production of volatile organic compounds by mycobacteria.

    Get PDF
    The need for improved rapid diagnostic tests for tuberculosis disease has prompted interest in the volatile organic compounds (VOCs) emitted by Mycobacterium tuberculosis complex bacteria. We have investigated VOCs emitted by Mycobacterium bovis BCG grown on Lowenstein-Jensen media using selected ion flow tube mass spectrometry and thermal desorption-gas chromatography-mass spectrometry. Compounds observed included dimethyl sulphide, 3-methyl-1-butanol, 2-methyl-1-propanol, butanone, 2-methyl-1-butanol, methyl 2-methylbutanoate, 2-phenylethanol and hydrogen sulphide. Changes in levels of acetaldehyde, methanol and ammonia were also observed. The compounds identified are not unique to M. bovis BCG, and further studies are needed to validate their diagnostic value. Investigations using an ultra-rapid gas chromatograph with a surface acoustic wave sensor (zNose) demonstrated the presence of 2-phenylethanol (PEA) in the headspace of cultures of M. bovis BCG and Mycobacterium smegmatis, when grown on Lowenstein-Jensen supplemented with glycerol. PEA is a reversible inhibitor of DNA synthesis. It is used during selective isolation of gram-positive bacteria and may also be used to inhibit mycobacterial growth. PEA production was observed to be dependent on growth of mycobacteria. Further study is required to elucidate the metabolic pathways involved and assess whether this compound is produced during in vivo growth of mycobacteria

    A Comparison of Physical Activity and Dietary Behaviours of British Pakistani and White British Girls Aged 9 to 11 Years Living on Teesside

    Get PDF
    Introduction South Asian minority groups in the UK are at greater risk of heart disease and diabetes than the general White population. Physical activity and diet may play an important role in the onset of these diseases. Previous studies suggest levels of physical activity may be particularly low in British Pakistani girls. This mixed-method study aimed to test hypotheses that British Pakistani girls would be less active and more sedentary and would consume a greater proportion of energy from fat than White British girls. It also explored activity and dietary behaviours in the two groups. Methods Eighty-two British Pakistani and 82 White British girls, aged 9 to 11 years, were recruited from seven primary schools on Teesside, North-east England. Accelerometry was used to collect objective measurements of physical activity and sedentary time for four days. Three previous day physical activity recalls were used to determine participation in sport and exercise, outdoor play, screen-time and active modes of school transport. Food records and three previous day multiple-pass diet recalls were used to determine intake of energy and macro-nutrients and to characterise dietary habits. Parental interviews explored familial influences on children’s physical activity and dietary behaviour. Results British Pakistani girls accumulated: 148 (95% CI: 95, 201) fewer counts per minute per day; 19 (95% CI: 11, 26) fewer minutes in moderate-to vigorous physical activity and 5% (95% CI: 3, 7) more sedentary time, compared with White British girls. According to activity recalls British Pakistani girls accumulated: 14 (95% CI: 0.4, 28) fewer minutes per day in sport and exercise; 24 (95% CI: 13, 37) fewer minutes in outdoor play and 4 (95% CI: 0.1, 8.3) fewer minutes in active modes of school transport. There was no significant difference in screen time. British Pakistani girls gained an additional 1.7 (95% CI: 0.4, 3.3) per cent of their overall energy intake from fat, compared with White British girls. According to dietary recalls a greater proportion of British Pakistani girls consumed fast-food as an evening meal (p=0.034) and were more likely to consume food that had been deep fried (p=0.04) or shallow fried (p<0.001) during cooking. Conclusion The lower levels of physical activity and higher amounts of sedentary time, coupled with the higher intake of total fat found in British Pakistani compared with White British girls, may be associated with the increased cardiometabolic risk found in these populations, both in childhood and later in life

    Planting the Spaces in Between: New York Restoration Project’s Tree Giveaway Program

    Get PDF
    Through the tree giveaway program, NYRP provides organizations between 100 and 300 trees and staff to support the distribution of trees to NYC residents for planting on private property. The giveaway events take place throughout NYC’s five boroughs every weekend during the spring and fall planting seasons. Tree giveaways set the stage for discussions about urban soil conditions, precautions to take when planting, and ecological issues confronting the city. From Allegheny Serviceberry to Little Leaf Linden and everything in between, these trees provide a beneficial contrast to the gray infrastructure of the city. These benefits include providing shade, wildlife habitat, ecological biodiversity, storm water retention, food production, and natural beauty

    Comparative Effectiveness of Step-up Therapies in Children with Asthma Prescribed Inhaled Corticosteroids : A Historical Cohort Study

    Get PDF
    This work was supported by the Respiratory Effectiveness Group. Acknowledgments We thank the Respiratory Effectiveness Group for funding this work, Annie Burden for assistance with statistics, and Simon Van Rysewyk and Lisa Law for assistance with medical writing.Peer reviewedPostprin

    Relationship Between Incentive Program Costs, Incentive Payments, and Profitability

    Get PDF
    The lack of profitability among primary care businesses can have harmful impacts on business operations. Primary care businesses owners must remain profitable to remain in business and provide quality health care to patients. Grounded in Freeman’s stakeholder theory, the purpose of this quantitative correlational study was to examine the relationship between incentive program costs, incentive payments, and profitability. Data were collected from 73 primary care physician business owners in the Inland Empire region of southern California. The multiple linear regression analysis results indicated the model was able to significantly predict profitability, F(2,70) = 1343.6, p \u3c.001, R2 = .975. Incentive payments (t = 51.837, p \u3c .001, = .928) was the only statistically significant predictor. Key recommendations include educating primary care physicians on the potential financial benefits of full participation in the commercial line of business pay-for-performance incentive programs and creating a campaign to bring in patients for wellness visits. The implications for positive social change include the potential for an additional revenue stream for primary care physician business owners, which could support more clinics, increasing patient access. Patients having better access to healthcare could positively affect the health and wellness of individuals in local communities
    corecore