PAA Annual Reports Report of the Treasurer (1988–1989)     

Therese M. Work  Pete Weingartner  Hugh J. Murphy  Ronald Knight Business  Lind Sanford  Linda Best  Florian I. Lauer  Joe Pavek  Shelley Jansky  James Bryan  M. D. Groskopp  Charles R. Brown  Richard G. Clarke  John Guerard  Jim Davis  Rikki Sterrett  John Ojala  Joseph Guenthner 《American Journal of Potato Research》1989,66(11):769-790

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Honorary Life Members named at 81st Annual Meeting of The PAA     

Allan Parker  Alfred A. Bushway  Edward F. Johnston  Therese M. Work  William H. Bohl 《American Journal of Potato Research》1997,74(5):354-364

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The effect of Ridomil™ on the flavor of riced baked potatoes     

Ruth H. True  Therese M. Work  Franklin E. Manzer 《American Journal of Potato Research》1982,59(2):65-67

Baked Monona and Abnaki potatoes from plants treated with Ridomil? 2EC on a 14 day schedule at the rate of 0.375 1b AI/A (1.5 pt formulation/A) were compared with an untreated control sample of the respective varieties by sensory panels of 13 and 18 members. No off-flavor was associated with the application of Ridomil at this level.  相似文献   

Anthrax outbreak in a Swedish beef cattle herd - 1st case in 27 years: Case report     

Susanna Sternberg Lewerin  Marianne Elvander  Therese Westermark  Lisbeth Nisu Hartzell  Agneta Karlsson Norstr?m  Sara Ehrs  Rickard Knutsson  Stina Englund  Ann-Christin Andersson  Malin Granberg  Stina B?ckman  Per Wikstr?m  Karin Sandstedt 《Acta veterinaria Scandinavica》2010,52(1):7

After 27 years with no detected cases, an outbreak of anthrax occurred in a beef cattle herd in the south of Sweden. The outbreak was unusual as it occurred in winter, in animals not exposed to meat-and-bone meal, in a non-endemic country.The affected herd consisted of 90 animals, including calves and young stock. The animals were kept in a barn on deep straw bedding and fed only roughage. Seven animals died during 10 days, with no typical previous clinical signs except fever. The carcasses were reportedly normal in appearance, particularly as regards rigor mortis, bleeding and coagulation of the blood. Subsequently, three more animals died and anthrax was suspected at necropsy and confirmed by culture and PCR on blood samples.The isolated strain was susceptible to tetracycline, ciprofloxacin and ampicillin. Subtyping by MLVA showed the strain to cluster with isolates in the A lineage of Bacillus anthracis.Environmental samples from the holding were all negative except for two soil samples taken from a spot where infected carcasses had been kept until they were picked up for transport.The most likely source of the infection was concluded to be contaminated roughage, although this could not be substantiated by laboratory analysis. The suspected feed was mixed with soil and dust and originated from fields where flooding occurred the previous year, followed by a dry summer with a very low water level in the river allowing for the harvesting on soil usually not exposed. In the early 1900s, animal carcasses are said to have been dumped in this river during anthrax outbreaks and it is most likely that some anthrax spores could remain in the area.The case indicates that untypical cases in non-endemic areas may be missed to a larger extent than previously thought. Field tests allowing a preliminary risk assessment of animal carcasses would be helpful for increased sensitivity of detection and prevention of further exposure to the causative agent.  相似文献   

Reliability of an injury scoring system for horses     

Cecilie M Mejdell  Grete HM J?rgensen  Therese Rehn  Kjersti Fremstad  Linda Keeling  Knut E B?e 《Acta veterinaria Scandinavica》2010,52(1):68

Background

The risk of injuries is of major concern when keeping horses in groups and there is a need for a system to record external injuries in a standardised and simple way. The objective of this study, therefore, was to develop and validate a system for injury recording in horses and to test its reliability and feasibility under field conditions.

Methods

Injuries were classified into five categories according to severity. The scoring system was tested for intra- and inter-observer agreement as well as agreement with a ''golden standard'' (diagnosis established by a veterinarian). The scoring was done by 43 agricultural students who classified 40 photographs presented to them twice in a random order, 10 days apart. Attribute agreement analysis was performed using Kendall''s coefficient of concordance (Kendall''s W), Kendall''s correlation coefficient (Kendall''s τ) and Fleiss'' kappa. The system was also tested on a sample of 100 horses kept in groups where injury location was recorded as well.

Results

Intra-observer agreement showed Kendall''s W ranging from 0.94 to 0.99 and 86% of observers had kappa values above 0.66 (substantial agreement). Inter-observer agreement had an overall Kendall''s W of 0.91 and the mean kappa value was 0.59 (moderate). Agreement for all observers versus the ''golden standard'' had Kendall''s τ of 0.88 and the mean kappa value was 0.66 (substantial). The system was easy to use for trained persons under field conditions. Injuries of the more serious categories were not found in the field trial.

Conclusion

The proposed injury scoring system is easy to learn and use also for people without a veterinary education, it shows high reliability, and it is clinically useful. The injury scoring system could be a valuable tool in future clinical and epidemiological studies.  相似文献   

Lethal trap trees: a potential option for emerald ash borer (Agrilus planipennis Fairmaire) management          下载免费PDF全文

Deborah G McCullough  Therese M Poland  Phillip A Lewis 《Pest management science》2016,72(5):1023-1030

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A review of the concept ‘management’ in relation to urban landscapes and green spaces: Toward a holistic understanding     

Märit Jansson  Therese Lindgren 《Urban Forestry & Urban Greening》2012,11(2):139-145

The management of urban landscapes concerns existing urban open spaces such as public parks, playgrounds and residential green spaces. It involves many different actors and organizations and its practice is of importance for the sustainable development of cities. As a research field, it needs further theoretical development and common definitions. For example, the central term ‘management’ is seldom defined in the relevant literature regarding an urban landscape context, and public participation in management processes is unusual. This paper introduces urban landscape management as an overarching concept that brings together knowledge about management of urban landscapes from fields such as urban forestry, park management and landscape planning. Based on a literature review, a common understanding of management in an urban landscape context is proposed, including organizational and strategic aspects of managerial activities. Our approach is that urban landscapes are ultimately managed to provide user benefits. Urban landscape management can be viewed as a complex process that includes a number of different actors, elements and relationships, mutually affecting each other. This view supports future studies of urban landscape management and its role in sustainable urban development.  相似文献   

Social Values of Forests and Production of New Goods and Services: The Views of Swedish Family Forest Owners     

Therese Bjärstig  Anna Sténs 《Small-Scale Forestry》2018,17(1):125-146

Forests are considered crucial assets for sustainable rural development, and contemporary forestry is an industry where production, environmental and social goals can—and should—be handled simultaneously. Swedish family forest owners (FFOs) are expected to both manage and conserve their forests for the benefit of the whole country, but there are contradictions between development and conservation and between traditional and alternative forms of utilization representing dilemmas in rural areas. Tensions between urban and rural areas, between demands on what to produce and protect, are often linked to the FFOs’ views on opportunities for forest management. The aim of this study is to identify and analyse the extent to which FFOs perceive that social values have the ability to generate “new” goods and services as a supplement or alternative to traditional forestry, and to suggest how the forests might be managed to render high social values. Fifty-seven interviews were conducted with FFOs (both resident and non-resident). The results indicate that regardless of where they reside, FFOs have a multifunctional view of their forests and forest management, that the social values attached to forests can play an important role in development of local recreation- and forest-based tourism activities, and in this respect they can enhance sustainable rural development. It is, however, not obvious who might start and develop these businesses, since there seems to be a lack of interest among the FFOs themselves.  相似文献   

Acute staphylococcal peritonitis following cystocentesis in a dog     

Andrew Specht  Daniel Chan  Therese O'Toole  Marc Kent  John Benson  Elizabeth A. Rozanski  John E. Rush 《Journal of Veterinary Emergency and Critical Care》2002,12(3):183-187

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Effects of structural complexity enhancement on eastern red-backed salamander (Plethodon cinereus) populations in northern hardwood forests     

Heather C. McKenny  William S. Keeton  Therese M. Donovan   《Forest Ecology and Management》2006,230(1-3):186-196

Managing for stand structural complexity in northern hardwood forests has been proposed as a method for promoting microhabitat characteristics important to eastern red-backed salamanders (Plethodon cinereus). We evaluated the effects of alternate, structure-based silvicultural systems on red-backed salamander populations at two research sites in northwestern Vermont. Treatments included two uneven-aged approaches (single-tree selection and group-selection) and one unconventional approach, termed “structural complexity enhancement” (SCE), that promotes development of late-successional structure, including elevated levels of coarse woody debris (CWD). Treatments were applied to 2 ha units and were replicated two to four times depending on treatment. We surveyed red-backed salamanders with a natural cover search method of transects nested within vegetation plots 1 year after logging. Abundance estimates corrected for detection probability were calculated from survey data with a binomial mixture model. Abundance estimates differed between study areas and were influenced by forest structural characteristics. Model selection was conducted using Akaike Information Criteria, corrected for over-dispersed data and small sample size (QAIC_c). We found no difference in abundance as a response to treatment as a whole, suggesting that all of the uneven-aged silvicultural systems evaluated can maintain salamander populations after harvest. However, abundance was tied to specific structural habitat attributes associated with study plots within treatments. The most parsimonious model of habitat covariates included site, relative density of overstory trees, and density of more-decayed and less-decayed downed CWD. Abundance responded positively to the density of downed, well-decayed CWD and negatively to the density of poorly decayed CWD and to overstory relative density. CWD volume was not a strong predictor of salamander abundance. We conclude that structural complexity enhancement and the two uneven-aged approaches maintained important microhabitat characteristics for red-backed salamander populations in the short term. Over the long-term, given decay processes as a determinant of biological availability, forestry practices such as SCE that enhance CWD availability and recruitment may result in associated population responses.  相似文献