No description available.

Febres, quae in regionibus calidis homines invadunt, bioliosae, remittentes, vel putridae saepe appellantur ; haec autem verba morbum male definiunt, gradum enim, potius quam speciem febris, indicant.

Previous to my graduation in Edinburgh on the 1st of August 1845, I submitted to the Faculty of Medicine a Thesis on Yellow Fever. This Thesis I have since corrected and enlarged, and now venture to publish. The labour of writing it was not great, for the materials furnished to me by my father were abundant. The original copies of his manuscripts are deposited in the Army Medical Board Office in London, and may be seen by any member of the profession. The plan of my Thesis is taken in part from a manuscript copy of the Lectures on Medicine delivered by the late Dr. John Gregory in the University of Edinburgh in 1770-1771. The Appendix contains a report by my father on the Principles to be observed in providing Barracks and Hospitals for Troops in the West Indies, dated Barbados 1844; and many of these principles have since been adopted by the government.

Omissis omnibus disputationibus de nomine quod huic morbo imponi debeat, eo, quo optime cognitus est in iis regionibus, in quibus maxime grassatur, uti licebit.

Males can influence current reproductive success in one of two ways: by caring for offspring or by seeking additional mates. Models for the evolution of paternal care predict increasing parental investment by males as their ability to contribute to offspring survivorship increases and as the probability of attracting additional mates decreases. I tested the assumptions and predictions of these models for polygynous Yellow-headed Blackbirds (Xanthocephalus xanthocephalus). The results of field observations and experiments indicate that male Yellowheads are capable of assessing the fitness returns associated with parental care and sexual advertisement and will increase parental investment as their ability to enhance offspring fitness increases and the probability of acquiring additional mates decreases. Thus, paternal investment is greater in unproductive marshes, on days when the insect emergence is low, when the arrival rate of unmated females is low, and for males with poor-quality territories. Current reproductive success also depends on the ability of individuals and their mates to raise young. In theory, males should be capable of assessing the parental competence of mates and adjusting their parental investment with mate quality so as to maximize the fitness return on their investment. To test this hypothesis, fitness-investment curves for nests belonging to competent and incompetent mates were derived using empirical data and, on the basis of the slopes, preferences for nests predicted. Field observations were consistent with the predictions. Males preferentially cared for young of competent mates and fed them at greater rates than young of incompetent mates; care at the latter nests occurred only when preferred nests were unavailable. Yellowheads often breed in colonies. In theory, colonies can act as information centers and facilitate the exploitation of spatially unpredictable food resources. I tested this hypothesis for Yellowheads by analyzing the pattern of (1) colony departures and (2) recruitment to an experimental foraging area. The results of the experiment and departure analysis indicate that Yellowhead colonies do act as information centers; birds can locate productive foraging areas more efficiently than in the absence of information by monitoring the success of neighbors and following them on foraging trips.

I'll make a big, yellow tapestry. In the project I'll examine textures and surfaces in a monumental tapestry, and the translation of an image into a tapestry through reliefs and materials. I'm a tapestry weaver, and in this project I'll work with structures and the sculptural aspect of weaving in an abstract tapestry. My aim for my textiles in general is to give the viewer a sublime feeling when they meet my work. In an extended scene this is a textile version of a photography. When I look at something for a long amount of time, it'll turn into structures, then the image itself is not so important anymore but the memory of it. This is a tapestry where I have turned this memories into structures in textile material. This project is a research in many various woven structures and techniques, which is arranged intuitively. It doesn't have a specific message but to re-create the sense of many and complex feelings. The different structures portrays the process of memories, like solitude, fears, tenderness, abstraction/imagination and concrete reality. This tapestry is the result of many experiments with the form and structure.

Thesis (Ph. D.)--Auburn University, 2008. / Abstract. Vita. Includes bibliographical references.

Thesis (Ph. D.)--University of Queensland, 2002. / Includes bibliographical references.

No description available.

Yellow perch, Perc4 flavescens (Mitchill), were sampled by bottom trawling and gillnetting in Indiana waters of Lake Michigan near Michigan City, Indiana during the months of June, July and August, 1988.Length-frequency analysis of trawl-caught fish revealed that fish older than age 1 were represented by a single large aggregate in monthly length frequency distributions. Opercular ages were validated by establishing that opercular bone annulus formation occurred from late spring to early summer and was completed by late July.Percent agreement of age determinations by age class between the methods ranged from 0X to 100X for males and OZ to 89X for 'Females for combined months. There was a tendency for percent agreement to decrease with increasing age in both males and females. The majority of the age discrepancies were a difference of plus or minus one year for both males and females.The body-scale length relationship was determined to be linear with data points close to the regression line for both sexes by month and for months combined. Coefficients of determination values ranged from 0.92 to 0.96 for male body-scale length regression by month with a value of 0.93 for months combined . Coefficients of determination values for females ranged from 0.92 to 0.94 by month with a value of 0.93 for months combined. Combining all data for months and sexes yielded a coefficient of determination value of 0.93 for body-scale length regression.The a-values determined for the body-scale length relationship were variable from June through August for both sexes. Male avalues ranged from 30.58 to * 44.15 monthly with a months combined value of 37.63. Female a-values ranged from 25.55 to 43.30 monthly with a combined months value of 34.83. Combining all data for months and sexes yielded an a-value of 35.78.The body-opercular length relationship was determined to be linear with data points close to the regression line. Coefficients of determination values for males ranged from 0.94 to 0.98 by month with a value of 0.96 for months combined. Coefficients of determination for females ranged from 0.97 to 0.98 by month with a value of 0.97 for months combined. The combined data for sexes and months resulted in a coefficient of determination value of 0.97.The a-values determined for the body-opercular length relationship demonstrated variability from month to month. Male a-values ranged from 9.19 to 14.47 monthly with a combined months value of 11.69. Female a-values ranged from 8.83 to 12.26 monthly with a combined value of 11.57. Combining the data for months and sexes yielded an a-value of 11.59.Growth determinations based on scale and opercular data for all aged fish demonstrated a high degree of agreement between the methods for both sexes and all age classes. No significant differences were found between 95X confidence intervals for mean length at formation of last annulus for any age class. The largest observed difference in length at formation of last annulus was 23 mm in the age 3+ females in June. Growth determined from opercular bones was found to be slightly greater than growth determined from scales in both sexes. Females grew faster than males after age 2 based both on scale and on opercular data. Monthly length increment determined from scale and opercular data was determined to be small or non-existent after age 2 for both sexes.Growth determined from scales and opercular bones for only those fish with agreed age between the methods demonstrated a high degree of agreement between methods by month for both sexes. No significant differences were found between 95X confidence intervals of mean length at last annulus in any age class. Data for months combined and sexes separate revealed that growth determinations were virtually identical between the methods. Females were shown to grow faster than males after age 2 for both methods. Monthly length increment was again found to be small or non-existent after age 2.Based on these results, it is concluded that the opercular bone method is an acceptable procedure for assessing age and growth of the yellow perch in Indiana waters of Lake Michigan. Since false annuli were more readily recognized in the opercular bone than in the scales and, since there was the decreasing agreement between the methods with increasing age of fish it is concluded the opercular method is probably a more accurate method for age and growth analysis in the yellow perch from Indiana waters of Lake Michigan. / Department of Biology