A case of bleeding from the Dieulafoy lesion of the jejunum

Little information is available regarding the practice of nurses who hold two perianesthesia certification credentials (CPAN/CAPA) and their motivation in achieving a dual certification distinction. Achievement of certification in both areas of perianesthesia nursing is a significant accomplishment. Nurses with dual certification are a valuable asset to the profession, their employer, and the perianesthesia patient. The characteristics of this unique group were surveyed by the American Board of Perianesthesia Nursing Certification, Inc. The findings have implications for nurse managers, educators, and perianesthesia colleagues.     

Studies in the adsorption and diffusion of ions in chitosan

Chitin was obtained from shell of the tail portions of the prawn Nephrops norvegicus (L) and was deacetylated to give chitosan. The adsorption and diffusion of copper (II) ions were studied and the diffusion of the acid dye CI Acid Orange 10 through chitosan films containing different amounts of chelated copper was investigated. It was found that with increasing copper content the rate of diffusion through the membrane decreased.     

The development of a measure of three conceptual models of behavior.

The Beliefs-About-Behavior inventory was constructed to measure the relative extent to which individuals use each of 3 conceptual models of behavior: theological, illness, and psychological. An initial inventory was written, and after a trial with a sample of university students, a final inventory was written and psychometrically analyzed. The final inventory was administered to 329 Ss consisting of undergraduates, nurses, and high school students. A 2nd phase of this study analyzed the inventory scores of a variety of Ss from mental health-related professions. (French summary) (22 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Trisomy C and cystic dysplasia of kidneys, liver and pancreas

Trisomy C is documented in a 17-hour-old full-term male infant with bilateral diffuse renal dysplasia, Potter facies, pulmonary hypoplasia and other congenital anomalies. In addition to renal dysplasia, intrahepatic bile duct and pancreatic dysplasia are demonstrated microscopically. The extra C-group autosome is morphologically consistent with a No. 11 and this is regarded as the etiology of the multiple malformations of this infant. The phenotype and the renal malformation are essentially similar to those described by Juberg et al (3) in an infant with trisomy C. It is suggested that the same chromosome is involved in both cases. Karyotype analysis should be performed on patients suspected of congenital renal malformations since the evidence implicates trisomy C as the etiology of at least some cases of bilateral renal dysplasia.     

A case of abdominal cocoon

Abdominal cocoon is a rare disease of the peritoneum and almost invariably presents as an acute or subacute intestinal obstruction with or without a mass. The etiology of this disease is largely unknown and abdominal cocoon of unknown etiology has been limited to the tropical and subtropical zones and primarily affects young adolescent females. In the temperate zone, only one case has been reported from the United Kingdom, but the patient was also born in Pakistan. No case of abdominal cocoon purely developed in the temperate zone has been reported. Recently, we experienced a case of abdominal cocoon in a 34-year-old female patient(Korean) who had never been abroad. The diagnosis was made postoperatively by reviewing the literature. We herein report this rare condition developed in an unusual geographical location with a brief review of the literature.     

Load Modeling Approach for Evaluating Selenium Stream Standards Compliance

Elevated selenium concentrations have been observed in several rivers in the western United States and are a concern for healthy aquatic systems. Water quality modeling is a valuable tool for quantifying the importance of sources and assessing management alternatives for stream standards compliance in basins with impaired water quality. This modeling study uses a relatively simple approach to describe a water distribution system and processes that drive loading of dissolved selenium and salts from the naturally occurring Cretaceous shale soils in the extensively irrigated Uncompahgre and Gunnison River Basins in Western Colorado. Calibrated model output characterizes processes that load an average total of 4,130?kg (9,100?lb) of selenium and 2.9×108?kg (316,000?t) of salts per year from agricultural subbasins to the Uncompahgre River. Simulations of best management practices predict that extensive implementation of methods to minimize seepage and constituent loading would be required to reduce selenium concentrations to comply with the current water quality standards.     

Extracellular or intracellular application of argiotoxin-636 has inhibitory actions on membrane excitability and voltage-activated currents in cultured rat sensory neurones

The whole cell variant of the patch clamp technique was used to investigate the actions of the polyamine amide spider toxin, argiotoxin-636, on the excitability of cultured dorsal root ganglion neurones. Synthesized argiotoxin-636 (0.1-100 microM) reduced neuronal excitability when applied to the extracellular environment by low pressure ejection or to the intracellular environment via the patch pipette solution. The toxin prolonged the duration of evoked action potentials and reduced the peak amplitude of action potentials. Intracellular and extracellular application of argiotoxin-636 also decreased the number of action potentials evoked in response to 800-ms depolarizing current commands. This action of the toxin was mimicked by 100 microM tetraethylammonium. Extracellular application of argiotoxin-636 inhibited voltage-activated K currents in a dose-dependent manner over the complete voltage range. This inhibition occurred without any significant changes in the voltage dependence of activation or inactivation. Intracellular application of argiotoxin-636, during 5-10 min of whole cell recording, also inhibited voltage-activated K+ currents without changing the voltage dependence of activation or steady-state inactivation. Extracellular or intracellular spermidine (250 microM) reversibly attenuated the inhibitory actions of extracellular argiotoxin-636. Argiotoxin-636 also inhibited voltage-activated Na + currents; this effect was dependent on repeated activation of the currents and the period during which the neurones were in culture. We conclude that application of argiotoxin-636 to either the extracellular or intracellular environment reduced excitability of cultured sensory neurones from neonatal rats and that this involved inhibition of both voltage-activated K+ and Na+ currents. The data suggest that the toxin was more effective at attenuating action potentials when neurones were repeatedly excited, and that access to inhibitory sites of action on the voltage-activated ion channels can be achieved from the inside of the neurone.     

Fabrication and properties of rf niobium-on-sapphire superconducting resonators

Niobium-on-sapphire resonators have been constructed as sensor elements for accelerometers in gravitational wave antennae. In their present form the resonators constitute small simple sensor elements for a wide range of applications where displacements take place, such as seismometry, gravimetry, thermal expansion measurements, as well as gravitational wave antennae. Radio-frequency losses in the niobium-sapphire interface have been observed. These limit the resonator Q to less than 10(5) and show a strong power dependence. Several methods of fabrication of the niobium-on-sapphire circuits have been investigated. Complete details for construction are given. An accelerometer based on these resonators is described in an accompanying paper.