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Epidemiology of grape powdery mildew, Uncinula necator, in the Willamette ValleyHall, Tyrone W. 07 February 2000 (has links)
An important disease of Vitis vinifera production in Oregon and all other
commercial growing regions is powdery mildew of grape, caused by the obligate fungal
pathogen Uncinula necator (Schwein.) Burril. Grape production can be characterized as
a long-term investment in the establishment and maintenance of the vineyard.
Establishment times have been reduced with the use of plastic vine shelters, but powdery
mildew disease pressure within vine shelters had been an unaddressed issue. Control of
the pathogen requires frequent spray applications and costly cultural management of the
grape canopy. Industry interest in forecasting programs have shown promise in
regulating spray applications to times when they are most effective, or needed. The
timing of when to begin spray programs is believed to be a point of weakness in the
forecasting programs currently available for grape powdery mildew.
The influence of vine shelter use on the development of powdery mildew was
investigated in the field during the 1998 and 1999 growing season. Industry standard
installations of various brands of vine shelters were tested against modified installations
for both incidence and severity of Uncinula necator infection. The industry standard
installation of 76 cm high tubes hilled with 8 cm of soil at the bottom to prevent airflow,
were effective in reducing the incidence of powdery mildew in both field seasons.
Disease reduction was associated with prolonged temperatures above 36��C and the
exclusion of infective spores by the artificial barrier created by the vine shelters.
The effectiveness of three forecasting programs for predicting the initial spray
application was investigated for three seasons. Actual disease onset dates were
determined by using trap leaves or plants. The forecasting programs consistently
predicted initial spray dates between 31 and 44 days prior to the detection of powdery
mildew with the trapping system. Modifications to the existing forecasting programs
were attempted to adjust the forecasting programs to more closely predict the actual
detected disease onset dates. The UC-Davis program performed the best over the three
years of the study, but improvements will be necessary for an adequate forecasting
program in the region. Flag shoots were reported for the first time in Oregon. / Graduation date: 2000
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Tuberculosis among health care workers in hospitals in the Ethekwini Municipality of KwaZulu-Natal.Naidoo, Saloshni. January 2006 (has links)
Tuberculosis is a disease of global importance and remains the leading cause
of death in the developing world. In South Africa a weak notification system
and poor occupational health services for health care workers has resulted in
little information being available about the incidence of tuberculosis and the
groups at highest risk of contracting tuberculosis amongst health care workers,
the clinical presentation and management of workers infected with tuberculosis.
The purpose of this study was to describe the incidence of tuberculosis, and
the clinical and public health aspects of the management of tuberculosis among
health care workers in eight public sector hospitals in the Ethekwini Municipality
of KwaZulu-Natal. Data was collected through a retrospective review of hospital
records for the study period January 1999 to June 2004. Study findings: Five
hundred and eighty three (N=583) health care workers were diagnosed with
tuberculosis for the period under review. The mean age of the HCWs was 38
years (95% Cl: 37-39). The mean cumulative incidence for the study period
was 1040/100 000 HCW population (95% Cl: 838-1242). The mean
cumulative incidence of TB was highest in males (1544/100 000 HCW
population; 95% Cl 1228 -1859), the age group 25 to 34 years (1043/100 000
HCW population; 95% CI: 650 -1436) and in paramedical staff (1675/100 000
HCW population; 95%CI: 880-2470). The majority of health care workers
presented with pulmonary tuberculosis (77%, n=322) and 3% (n=13) had multidrug
resistant tuberculosis. Successful treatment outcomes were achieved in
63% (n=334) of health care workers. Only one hospital has a work place policy
with regard tuberculosis in health care workers. Compensation for this
occupational disease was sought as follows. Submissions of a first medical
report were made in 107 (18%) of the 583 health care workers. In the 107
cases initially reported submission of progress reports (n=75; 70%) and final
reports (n=60; 56%) decreased considerably. In conclusion, the incidence of
tuberculosis in health care workers has increased annually since 1999 and the
treatment outcomes among health care workers do not reach the targets set by
the National Tuberculosis Control Programme. Recommendations based on
the study findings include establishing a uniform provincial policy for the
prevention and reduction of tuberculosis infections among health care workers
for implementation in hospitals; the implementation of a medical surveillance
system for health care workers with respect to tuberculosis and a provincial
training programme for staff on the clinical and administrative management of
TB in health care workers. / Thesis (M.Med.)-University of KwaZulu-Natal, 2006.
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The potential for silent circulation of highly pathogenic avian influenza viruses subtype H5N1 to be sustained in live bird markets : a survey of markets in northern Viet Nam and Cambodia and mathematical models of transmissionFournié, Guillaume January 2011 (has links)
No description available.
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Disease, development, and defining indigenous identity : the emergence of machupo virus in post-revolutionary Bolivia /Moore, Michelle Welty. January 2005 (has links)
Thesis (M.A.)--University of North Carolina at Wilmington, 2005. / Includes bibliographical references (leaves: 157-172)
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Non-tuberculous mycobacteria in tuberculosis epidemic settings in South AfricaKruger, Clarissa January 2007 (has links)
Thesis (MTech (Biomedical Technology))--Cape Peninsula University of Technology, 2007.
. / Non-tuberculous mycobacteria (NTM) are often isolated from Human Immunodeficiency Virus (HIV) infected individuals, but there is very little information documented about the prevalence of NTM in community settings. An increase in NTM infection is also noted in HIV-negative people. Although it is as yet unknown whether the organisms cause desease in HIV-negative individuals or whether they are merely commensal organisms, their affect on HIV-positive individuals is unquestionable.
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Avian influenza and Newcastle disease in poultry in Mali : epidemiological investigations and modelling for improved surveillance and controlMolia, Sophie January 2015 (has links)
No description available.
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An Epidemiological Survey of Musculoskeletal Pain Among a Self-Selected Population of OrganistsDillard, E. Margo (Edna Margo) 05 1900 (has links)
The purpose of this study was to investigate problem areas of organists' performance as indicated by common experiences of pain. The research problems were to determine the specific areas of the body that were affected by pain, to determine the perceived level of that pain on a scale indicative of its severity, and to explore the relationship between demographic and performance-related factors within the population and specific area of reported pain. An examination of the demographic, performance-related, and pain data, as well as subject comments, indicated possible relationships of the pain experience to other factors. Organists attributed their pain to instrument characteristics, such as keyboard action, music rack height, bench design, and pedalboard shape. Pain was also associated with the time spent playing the organ, playing literature which required large reaches and rapid passage work, such as french toccatas, or playing with incorrect posture. To explore these relationships to spinal and upper extremity pain, further research is indicated.
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Congenital malformation in Chinese newborn babies: an epidemiological study.January 1996 (has links)
Lui Yat Chi. / Publication date from spine. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1995. / Includes bibliographical references (leaves 93-103). / Acknowledgment --- p.1 / Abstract --- p.2 / Chapter Chapter 1 --- Introduction --- p.3 / Chapter 1.1 --- Background --- p.3 / Chapter 1.2 --- Review of previous epidemiological studies of congenital abnormalities --- p.3 / Chapter 1.2.1 --- Limitation in comparing data with different studies --- p.4 / Chapter 1.3 --- Objectives --- p.4 / Chapter Chapter 2 --- Definition --- p.7 / Chapter 2.1 --- Terminology and definition --- p.7 / Chapter 2.1.1 --- The definition of clinical abnormality --- p.9 / Chapter 2.1.2 --- The current concepts in major and minor anomalies --- p.10 / Chapter 2.1.3 --- The definition of major and minor anomalies --- p.10 / Chapter 2.2 --- Major anomalies and minor anomalies --- p.11 / Chapter Chapter 3 --- Subjects and Methodology --- p.16 / Chapter 3.1 --- The introduction of methodology --- p.16 / Chapter 3.1.1 --- Background --- p.16 / Chapter 3.1.2 --- Different Methodologies and their limitations --- p.16 / Chapter 3.2 --- Methods --- p.17 / Chapter 3.2.1 --- Setting --- p.17 / Chapter 3.2.2 --- Design of the research data recording sheet --- p.18 / Chapter 3.2.3 --- Training --- p.18 / Chapter 3.2.3.1 --- "Training in paediatrics, orthopaedic and clinical genetic centre" --- p.18 / Chapter 3.2.3.2 --- End of training period --- p.19 / Chapter 3.2.4 --- Data Collection --- p.19 / Chapter 3.2.4.1 --- Subject selection --- p.19 / Chapter 3.2.4.2 --- Examination Procedures --- p.20 / Chapter 3.2.4.3 --- Cross checking of the examination --- p.25 / Chapter 3.2.4.4 --- Other sources of information --- p.25 / Chapter 3.3 --- Problems in screening --- p.26 / Chapter 3.4 --- Selection of variables --- p.26 / Chapter 3.5 --- Statistical analysis --- p.27 / Chapter Chapter 4 --- Results --- p.28 / Chapter 4.1 --- Sub-Classification of the newborn infants --- p.28 / Chapter 4.2 --- Weights and Measures --- p.29 / Chapter 4.2.1 --- Result --- p.29 / Chapter 4.2.2 --- Supplement (statistical analysis of Table 4, 5 & 6) --- p.30 / Chapter 4.3 --- The incidence of congenital abnormalities in Newborn Chinese --- p.31 / Chapter 4.4 --- Relationship between incidence of abnormalities and sex --- p.47 / Chapter 4.4.1 --- Result --- p.47 / Chapter 4.5 --- Relationship between incidence of abnormalities and maternal age --- p.53 / Chapter 4.5.1 --- Result --- p.53 / Chapter 4.5.2 --- Supplement (statistical analysis of Table 19) --- p.54 / Chapter 4.5.3 --- Supplement (statistical analysis of Table 21 & 22) --- p.56 / Chapter 4.6 --- Relationship between incidence of abnormalities and parity --- p.58 / Chapter 4.6.1 --- Result --- p.58 / Chapter 4.7 --- Relationship between incidence of abnormalities and mode of delivery --- p.59 / Chapter 4.7.1 --- Result --- p.59 / Chapter 4.7.2 --- Supplement (statistical analysis of Table 23 & 24) --- p.59 / Chapter 4.8 --- Other correlations --- p.62 / Chapter 4.8.1 --- Relationship between incidence of abnormalities and mode of delivery --- p.62 / Chapter 4.8.2 --- Supplement (statistical analysis of Table 25 & 26) --- p.63 / Chapter Chapter 5 --- Discussion --- p.65 / Chapter 5.1 --- Comparative prevalence of congenital anomalies among different studies --- p.65 / Chapter 5.2 --- Comparison of incidence of specific major abnormalities in different survey --- p.68 / Chapter 5.3 --- Relationship between abnormalities and different factors --- p.70 / Chapter 5.3.1 --- Maternal age --- p.70 / Chapter 5.3.2 --- Parity --- p.71 / Chapter 5.3.3 --- Mode of delivery --- p.72 / Chapter 5.4 --- Other correlations --- p.72 / Chapter 5.5 --- The prevalence of birth defects among different systems in this survey --- p.72 / Chapter 5.5.1 --- Central nervous system --- p.72 / Chapter 5.5.2 --- Cardiovascular system --- p.76 / Chapter 5.5.3 --- Alimentary system --- p.79 / Chapter 5.5.4 --- Musculoskeletal system --- p.81 / Chapter 5.5.4.1 --- Supplement (statistical analysis of Table Y) --- p.82 / Chapter 5.5.5 --- Multiple syndrome --- p.86 / Chapter Chapter 6 --- Conclusion --- p.89 / Chapter 6.1 --- Limitations and Benefits --- p.90 / Chapter 6.2 --- Future direction --- p.92 / References --- p.93 / Appendix --- p.104
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Molecular epidemiology of avian influenza viruses from Southeastern China錢寶生, Chin, Po-san, Mario. January 2003 (has links)
published_or_final_version / abstract / toc / Microbiology / Doctoral / Doctor of Philosophy
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Lung squeezing technique as a volume recruitment manoeuvre in correcting lung atelectasis for preterm infants on mechanical ventilation.January 1998 (has links)
by Ivor Wong (Nga Chung). / Thesis (M.Phil.)--Chinese University of Hong Kong, 1998. / Includes bibliographical references (leaves 114-120). / Abstract also in Chinese. / Chapter PART I --- INTRODUCTION / Chapter 1. --- CHAPTER 1 BACKGROUND --- p.2 / Chapter 1.1 --- Objectives --- p.3 / Chapter 1.2 --- Effects of chest physiotherapy --- p.3 / Chapter 1.2.1 --- Aims of chest physiotherapy --- p.4 / Chapter 1.2.1.1 --- Mucus Removal --- p.4 / Chapter 1.2.1.2 --- Re-expansion of atelectatic lung --- p.9 / Chapter 1.2.2 --- Chest physiotherapy for neonates --- p.10 / Chapter 1.2.2.1 --- Pulmonary characteristics in neonates --- p.10 / Chapter 1.2.3 --- Chest physiotherapy for infants on mcchanical ventilation --- p.12 / Chapter 1.2.3.1 --- Conventional ventilation --- p.12 / Chapter 1.2.3.2 --- High frequency ventilation --- p.13 / Chapter 2. --- CHAPTER 2 NEONATAL CHEST PHYSIOTHERAPY --- p.15 / Chapter 2.1 --- Traditional physiotherapy means --- p.15 / Chapter 2.1.1 --- Percussion and Chest vibration --- p.15 / Chapter 2.1.2 --- Cup percussion (Cupping) --- p.16 / Chapter 2.1.3 --- Postural drainage (PD) --- p.16 / Chapter 2.1.4 --- Endotracheal Suctioning --- p.17 / Chapter 2.1.4.1 --- Adverse effects of endotracheal suctioning --- p.17 / Chapter 2.2 --- Possible Complications of chest physiotherapy --- p.20 / Chapter 2.2.1 --- Haemodynamic disturbances --- p.20 / Chapter 2.2.2 --- Fluctuation of Cerebral Perfusion --- p.21 / Chapter 2.2.3 --- Cystic brain lesions --- p.22 / Chapter 2.3 --- Modified manual techniques --- p.23 / Chapter 2.3.1 --- Theoretical model of lung squeezing technique --- p.23 / Chapter 2.3.2 --- Lung squeezing technique as a volume recruitment manoeuvre --- p.30 / Chapter 2.3.2.1 --- Squeezing phase of lung squeezing technique --- p.30 / Chapter 2.3.2.2 --- Release phase of lung squeezing technique --- p.31 / Chapter 3. --- CHAPTER 3 PHYSIOTHERAPY PRACTICE IN LOCAL NEONATAL ICU --- p.33 / Chapter 3.1 --- Current physiotherapy practice in Hong Kong Neonatal ICU settings --- p.33 / Chapter 3.1.1 --- Endotracheal suctioning protocol in Prince of Wales Hospital --- p.33 / Chapter 3.1.1.1 --- Suctioning Procedures --- p.34 / PART II MAIN STUDY / Chapter 4. --- CHAPTER 4 RESEARCH DESIGN --- p.37 / Chapter 4.1 --- Ethics --- p.37 / Chapter 4.2 --- Methods --- p.37 / Chapter 4.2.1 --- Pilot study --- p.37 / Chapter 4.2.2 --- Main study --- p.39 / Chapter 4.2.2.1 --- Hypothesis --- p.39 / Chapter 4.2.2.2 --- Study Design --- p.39 / Chapter 4.3 --- Methodology --- p.44 / Chapter 4.3.1 --- Treatment protocol --- p.44 / Chapter 4.3.1.1 --- Experimental Group protocol --- p.44 / Chapter 4.3.1.2 --- Control Group protocol --- p.44 / Chapter 4.3.2 --- Outcome Measure --- p.45 / Chapter 4.3.2.1 --- Chest X-ray --- p.45 / Chapter 4.3.2.2 --- Other Measurements --- p.45 / Chapter 4.3.3 --- Statistics --- p.48 / Chapter 5. --- CHAPTER 5 RESULTS --- p.50 / Chapter 5.2 --- Demographic Data --- p.50 / Chapter 5.3 --- Resolution of lung atelectasis --- p.56 / Chapter 5.3.1 --- Distribution of lung atelectasis --- p.56 / Chapter 5.3.2 --- First re-expansion of lung atelectasis --- p.59 / Chapter 5.3.3 --- Complete resolution of lung atelectasis --- p.62 / Chapter 5.3.3.1 --- Sites of rccurrencc of lung atelectasis --- p.65 / Chapter 5.4 --- Factors correlated with number of treatment sessions required to attain resolution of atelectasis --- p.68 / Chapter 5.5 --- Ventilator parameters changes --- p.73 / Chapter 5.6 --- Haemodynamic changes --- p.75 / Chapter 5.7 --- Arterial blood gas --- p.78 / Chapter 5.8 --- Other clinical outcome --- p.80 / Chapter 5.8.1 --- Bronchopulmonary dysplasia --- p.80 / Chapter 5.8.2 --- Intra-ventricular haemorrhage (IVH) --- p.82 / Chapter 5.8.3 --- Mortality rate --- p.86 / Chapter PART III --- EFFECTS OF LUNG SQUEEZING TECHNIQUE ON LUNG MECHANICS / Chapter 6. --- CHAPTER 6 LUNG MECHANICS STUDY FOR NEONATES --- p.88 / Chapter 6.1 --- Methods --- p.91 / Chapter 6.1.1 --- Statistical Analysis --- p.93 / Chapter 6.2 --- Results --- p.94 / Chapter PART IV --- DISCUSSION AND CONCLUSION / Chapter 7. --- CHAPTER 7 SUMMARY AND CONCLUSION --- p.105 / Chapter PART V --- REFERENCE / Chapter 8. --- BIBLIOGRAPHY --- p.114 / Chapter PART VI --- GLOSSARY / Chapter PART VII --- APPENDICES
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