Karen Mah Chamberlain

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The blend of volatile compounds emitted by bean plants (Phaseolus vulgaris) infested with greenhouse whitefly (Trialeurodes vaporariorum) has been studied comparatively with undamaged plants and whiteflies themselves. Collection of the volatiles and analysis by gas chromatography revealed more than 20 compounds produced by plants infested with whitefly. Of(More)
The quantity, ratios, diurnal rhythm, and correlation with foliage weight of volatile chemicals emitted by young and mature intact potato plants were determined during the fourth (morning), eighth (noon) and fourteenth (afternoon) hour of the photophase. The major compounds released by young and mature intact potato plants, Solanum tuberosum, during the(More)
The volatile chemicals produced by four poaceous plant species, blue thatching grass, Hyparrhenia tamba, Napier grass, Pennisetum purpureum, sorghum, Sorghum bicolor, and maize, Zea mays, which are host plants for the lepidopterous stemborers, Chilo partellus and Busseola fusca, were collected by air entrainment and analyzed by gas chromatography. The total(More)
A miniature high precision conductivity and temperature (CT) sensor system has been developed for ocean salinity monitoring. The CT sensor is manufactured using micro fabrication technology. A novel seven-electrode conductivity cell has been developed which has no field leakage. This is combined with a platinum resistor temperature bridge to produce an(More)
The stemborers Chilo partellus and Busseola fusca are major pests of subsistence cereal farming in Africa. Volatiles released by two cultivated hosts, sorghum and maize (Sorghum bicolor and Zea mays), and two wild grass hosts, Pennisetum purpureum and Hyparrhenia tamba, were collected by air entrainment. Electrophysiologically active components in these(More)
INTRODUCTION The Caribbean region can be defined as " all the islands between North America and Mexico, plus Belize and the northern South American territories of Guyana, Suriname, and French Guiana. " 1 Yet, the influence of the Caribbean can be felt as far away as places like Europe, Asia, Africa, and the United States. By having this evolution of an(More)
A diagnosis of tubular colonic duplication was made via contrast radiography and colonoscopy in a six-month-old, intact female Boston terrier. Clinical signs of increased frequency of defecation, tenesmus, and constipation, which had been present since birth, resolved following surgical correction of the duplication. The literature addressing diagnosis and(More)
BACKGROUND Beriberi occurs in Vientiane, Lao PDR, among breastfed infants. Clinical disease may be the tip of an iceberg with subclinical thiamin deficiency contributing to other illnesses. Thiamin treatment could improve outcome. METHODOLOGY/PRINCIPAL FINDINGS A cohort of 778 sick infants admitted during one year without clinical evidence of beriberi(More)
BACKGROUND Infantile beriberi is a potentially lethal manifestation of thiamin deficiency, associated with traditional post-partum maternal food avoidance, which persists in the Lao PDR (Laos). There are few data on biochemical markers of infantile thiamin deficiency or indices of cardiac dysfunction as potential surrogate markers. METHODOLOGY/PRINCIPAL(More)
Fifty-seven adult patients receiving chemotherapy were treated with a total of 133 infusions using portable user-worn infusion pumps, the Autosyringe AS*2F Cormed ML6-4, and two earlier versions of the latter, the Sigmamotor ML6-2 and ML6-3. Ninety-eight infusions were given on an ambulatory basis. Fourteen infusions were given through peripheral venous(More)
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