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A collection of academic publications by faculty and staff, both before and during their time at UPEI.

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8226 - 8250 of 8329
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OBJECTIVE--To test hexachlorobenzene (HCB), an environmental pollutant, for its potential toxicity to the ovary. DESIGN--Nonhuman primates were orally administered the pollutant at doses between 0.01 and 10 mg of HCB/kg of body weight to test viability of ovarian follicles. At the end of dosing peri...
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Objective: To determine the factors that predict women's perceptions of the childbirth experience and to examine whether these vary with the type of birth a woman experiences. Design: Prospective cohort study. Setting: The postpartum units of two eastern Canadian hospitals. Participants: Six hundred...
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OBJECTIVE: To compare selected effects of tub bathing versus traditional sponge bathing in healthy, term newborns and their mothers' ratings of pleasure and confidence with the bath. Design: Randomized controlled study. SETTING: The maternity unit of an eastern Canadian hospital. PARTICIPANTS: ...
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The early ultrastructural stages of Loma salmonae were studied in the gills of experimentally infected rainbow trout. No parasitic stages were identified during the first 2 wk of the infection. By week 3 postexposure (PE), uninucleate and binucleate meronts were recognized within host cells (no xeno...
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Objective: To determine which nursing support behaviors new mothers rate as most helpful in assisting them to cope with labor. Design: A retrospective study using quantitative and qualitative approaches, including a ranking of means and a content analysis. Setting: The postpartum unit of a tertiary-...
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OBJECTIVE: To determine whether participants preferred a provider-completed or self-reported antenatal psychosocial health assessment (ALPHA) form, to evaluate the forms' effectiveness in facilitating disclosure of psychosocial issues, and to determine whether different providers gathered diffe...
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Agricultural activity on Prince Edward Island poses a potential hazard to groundwater, which is the sole source of drinking water on the island. This study investigates the potential impact of groundwater nitrate exposure on prematurity and intrauterine growth restriction on Prince Edward Island. A ...
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A bioassay for sea lice Lepeophtheirus salmonis sensitivity towards emamectin benzoate (EMB) was validated for field use. A probit regression model with natural responsiveness was used for the number of affected (moribund or dead) sea lice in bioassays involving different concentrations of EMB. Bioa...
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Adult and mobile preadult sea lice L. salmonis were incubated with mucus samples from rainbow trout (Oncorhynchus mykiss), coho salmon (O. kisutch), Atlantic salmon (Salmo salar), and winter flounder (Pseudopleuronectes americanus) to determine the response of L. salmonis to fish skin mucus as asses...
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Susceptibility to different diseases among related species, such as coho salmon (Oncorhynchus kisutch), rainbow trout (Oncorhyncus mykiss) and Atlantic salmon (Salmo salar), is variable. The prominence of these species in aquaculture warrants investigation into sources of this variability to assist ...
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Physiological, immunological and biochemical parameters of blood and mucus, as well as skin histology, were compared in 3 salmonid species (rainbow trout Oncorhynchus mykiss, Atlantic salmon Salmo salar and coho salmon O. kisutch) following experimental infection with sea lice Lepeophtheirus salmoni...
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The objective of the present study was to understand how and when the frontal filament (FF) in the salmon louse Lepeophtheirus salmonis is produced by examining the sequence of morphological changes leading to FF production in the copepodid and early chalimus stages. Atlantic salmon (Salmo salar) we...
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The changes in the activities of mucus hydrolytic enzymes and plasma cortisol levels were examined following infection of Atlantic salmon Salmo salar with the salmon louse Lepeophtheirus salmonis and these changes were compared with those resulting from elevated plasma cortisol. Salmon were infected...
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By the Kuratowski-Ulam theorem, if A subset of Rn+1 = R-n x R is a Borel set which has second category intersection with every ball (i.e., is "everywhere second category"), then there is a y is an element of R such that the section A boolean AND (R-n x {y}) is everywhere second category in R-n x {y}...
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In this paper we investigate two main problems. One of them is the question on the existence of category liftings in the product of two topological spaces. We prove, that if X x Y is a Baire space, then, given (strong) category liftings rho and sigma on X and Y, respectively, there exists a (strong)...
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We prove the following theorem: For a partially ordered set Q such that every countable subset of Q has a strict upper bound, there is a forcing notion satisfying the countable chain condition such that, in the forcing extension, there is a basis of the null ideal of the real line which is order-iso...
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The corrosion inhibitor 5-tolyltriazole (5-TTri) can have a detrimental impact on aquatic systems thus implying an acute need to reduce the effluent concentrations of 5-TTri. In this study, 5-TTri biodegradation was enhanced through acclimation and nutrient supply. Activated sludge communities (ASC)...
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The corrosion inhibitor 5-tolyltriazole (5-TTri) can have a detrimental impact on aquatic systems thus implying an acute need to reduce the effluent concentrations of 5-TTri. In this study, 5-TTri biodegradation was enhanced through acclimation and nutrient supply. Activated sludge communities (ASC)...
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African horse sickness (AHS) is typically a highly fatal disease in susceptible horses and vaccination is currently used to prevent the occurrence of disease in endemic areas. Similarly, vaccination has been central to the control of incursions of African horse sickness virus (AHSV) into previously ...
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This paper continues the investigation begun in [M.R. Burke, Topology Appl. 129 (2003) 29-65] into the measurability properties of separately continuous functions. We sharpen several results from that paper. (1) If X is any product of countably compact Dedekind complete linearly ordered spaces, then...
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We study the class of Tychonoff spaces that can be mapped continuously into R in such a way that the preimage of every nowhere dense set is nowhere dense. We show that every metric space without isolated points is in this class. We also give examples of spaces which have nowhere constant continuous ...
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The purpose of this paper is to determine which metric spaces X and Y are such that the uniformly continuous maps f : X --> Y are precisely the continuous maps between (X, tau1) and (Y, tau2) for some new topologies tau1 and tau2 on X and Y respectively.
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Diamond, Pomerance and Rubel (1981) proved that there are subsets M of the complex plane such that for any two entire functions f and g if f[M] = g[M], then f = g. Baraducci and Dikranjan showed in 1993 that the continuum hypothesis (CH) implies the existence of a similar set M subset of R for the c...