36 research outputs found

    Simulium (Inaequalium) marins, a new species of black fly (Diptera: Simuliidae) from inselbergs in Brazil

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    A new species of black fly, Simulium (Inaequalium) marins (Diptera: Simuliidae), is described based on the male, female, pupa and larva. This new species was collected from two localities: a small stream on the Pico dos Marins, a high mountain with granite outcrops in Piquete County, state of S茫o Paulo, and in a small stream in the Serra dos 脫rg茫os National Park, state of Rio de Janeiro, Brazil

    Toward Security: Attachment Disturbance in Adult Psychotherapy

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    Research shows that early childhood relationships affect later relationships across the lifespan, in various configurations of familial relationships and social networks. The theory of infant-caregiver attachment has been applied to many areas of subsequent research, including that of adult attachment, and attachment-based psychotherapy. This study examines a clinical case, illustrating the therapeutic process and the subjective experience of both patient and therapist through the lens of attachment theory. An analysis of the clinical data suggests that the therapist\u27s own attachment style may have impacted the treatment. The patient gained awareness and insight, and began to recognize her own attachment needs; however the therapist could have placed more explicit emphasis on collaborative nature of the work, and could have highlighted the patient\u27s underlying emotional needs. A focus on the patient\u27s resistance and fear surrounding the discussion of attachment anxieties may have better facilitated a change in her internal working models to a more secure attachment orientation

    Role of adenosine triphosphate (ATP) and NaK ATPase in the inhibition of proximal tubule transport with intracellular cystine loading.

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    Cellular cystine loading with cystine dimethyl ester inhibits volume absorption, transepithelial potential difference, glucose transport, and bicarbonate transport in proximal convoluted tubules perfused in vitro. This study examined the roles of ATP and NaK ATPase in this in vitro model of the Fanconi syndrome of cystinosis. Intracellular ATP was measured using the luciferin-luciferase assay. Intracellular ATP was reduced by 60% in proximal convoluted tubules incubated with 0.5 mM cystine dimethyl ester for 15 min at 37 degrees C (P less than 0.001). Incubation of cystine loaded tubules with 1 mM exogenous ATP increased intracellular ATP to levels not significantly different than that of controls. On the other hand, Vmax NaK ATPase activity was unchanged even though the incubation times and the concentration of cystine dimethyl ester were doubled to 30 min and 1 mM, respectively. In proximal convoluted tubules perfused in vitro, 0.5 mM cystine dimethyl ester resulted in an 89% inhibition in volume absorption (0.81 +/- 0.14 to 0.09 +/- 0.09 nl/mm.min), while there was only a 45% inhibition in volume absorption (P less than 0.01) due to cellular cystine loading in the presence of 1 mM lumen and bath ATP (0.94 +/- 0.05 to 0.52 +/- 0.11 nl/mm.min). These data demonstrate that proximal tubule cellular cystine loading decreases cellular ATP concentration, but does not directly inhibit NaK ATPase activity. The inhibition in transport and decrease in intracellular ATP due to cellular cystine loading was ameliorated by exogenous ATP. These data are consistent with cellular ATP depletion playing a major role in the inhibition of proximal tubule transport due to intracellular cystine loading

    Diamagnetic Signal in a Plasma Column with an Inflection Point

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