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88 results on '"Warren, J.B."'

2. Parent experiences of a remote patient monitoring program enabling early discharge from the neonatal intensive care unit with nasogastric tube feeding.

Author

Caruso, C.G., Warren, J.B., and Carney, P.A.

Subjects
*NEONATAL intensive care units, *NASOENTERAL tubes, *PATIENT monitoring, *PATIENTS' attitudes, *PARENTS
Abstract

BACKGROUND: This exploratory study examined parents' experiences with "Growing at Home" (G@H), a remote patient monitoring program for stable infants discharged from the Neonatal Intensive Care Unit (NICU) with continued need for nasogastric tube feeding. METHODS: We used classical content analysis to identify and refine emergent themes from 13 semi-structured key informant interviews. RESULTS: The primary emergent theme was the desire to return to normalcy, which was expressed as a primary motivator for participating in G@H. Parents reported G@H assisted them in transitioning from the NICU's highly medicalized setting to establishing a new normal with incorporation of their infant into their lives and families. Parental preparation is important, as some parents experienced challenges that indicate the program may not be suitable for all families. CONCLUSIONS: Parental experiences offer insight into benefits and challenges of early discharge from the NICU and highlight opportunities to support families beginning in the NICU and as they transition home. [ABSTRACT FROM AUTHOR]

Published
2023
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3. Cross-shaped bandpass filters for the near- and mid-infrared wavelength regions

Author

Moller, K.D., Warren, J.B., Heaney, J.B., and Kotecki, C.

Subjects
Electric filters, Bandpass -- Usage, Photolithography -- Research, Astronomy, Physics
Abstract

A photolithographic process has been used to form cross-shaped patterns in 3-[[micro]meter]-thick nickel foils. Patterns with cross arm dimensions in the 10-20-[[micro]meter] range, and with periodicities in the 16-26-[[micro]meter] range, yield self-resonant bandpass filters for wavelengths in the 20-25-[[micro]meter] region. Transmittances as high as 80% were achieved with center wavelength-to-bandwidth ratios ([[Lambda].sub.R]/[Delta][Lambda]) of [approximately]5. We present a simple empirical formula that relates the wavelength of peak transmittance, or resonant frequency, with cross dimensions and periodicity. Key words: Infrared filters, bandpass filters produced by photolithography.

Published
1996

4. First Results from the Micro Pin Array Detector (MIPA)

Author

Rehak, P., Smith, G.C., Warren, J.B., and Yu, B.

Subjects
Detectors -- Design and construction, Nuclear research -- Equipment and supplies, Business, Electronics, Electronics and electrical industries
Abstract

A technique for electron multiplication in gas is being developed that lends itself to easy fabrication with lithographic techniques. Moreover, the electrical characteristics of the resulting device are very stable. Comprising an array of anode pins that are recessed into a closely-packed hexagonal cathode, the MIcro-Pin Array (MIPA) represents a promising addition to micro-pattern detectors with two-dimensional sensitivity. We describe the electrostatic rationale behind the MIPA detectors design, the fabrication technique, and X-ray results that illustrate electrical stability and high rate capability.

Published
2000

8. Caution with use of inhaled nitric oxide

Author

Warren, J.B. and Higenbottam, Tim

Subjects
Nitric oxide -- Health aspects, Acute respiratory distress syndrome -- Care and treatment, Respiratory therapy -- Complications
Published
1996

25. Exosporial membrane plasticity of Clostridium sporogenesand Clostridium difficile

Author

Panessa-Warren, B.J., Tortora, G.T., and Warren, J.B.

Abstract

This investigation examines the morphological alterations of the exosporial membranes of Clostridium sporogenesATCC 3584 and Clostridium difficileATCC 43594 and 9689 endospores in relation to their possible function during germination in the attachment/colonization process of these pathogenic bacteria. There is no reported function for the exosporial membrane, nor exposporial appendages, of clostridial endospores. Advances in high resolution, scanning electron microscopy (SEM) permit the examination of these delicate, morphological projections on intact spores in the process of attachment. The morphological plasticity of the exosporial membrane projections during activation and germination was examined to determine whether the appearance of these exosporial projections coincided with attachment of the spores to the nutritive substrate, and whether this attachment could be altered by physical agitation, cation competition with Ba2+, chelation with EDTA, or treatment with colchicine. Following incubation, activated spores could not be removed from the agar surface by agitation in water (pH 7.2 or 9.1), nor by agitation in buffer or colchicine, indicating that some form of adherence or attachment to the agar had taken place. When agitated in the presence of Ba2+or EDTA in phosphate buffered saline or EDTA in water, all activated spores detached from the agar and exhibited decreased exosporial projections and minimal, if any, attachment structures to the agar surface. Activated clostridial spores were found to attach to agar by delicate extensions of the exosporium that could be disrupted by EDTA or Ba2+exposure, but were unchanged when shaken in buffer or water.

Published
1997
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26. The chemical reaction of muonium with Cl2in the gas phase

Author

Fleming, D.G., Garner, D.M., Brewer, J.H., Warren, J.B., Marshall, G.M., Clark, G., Pifer, A.E., and Bowen, T.

Abstract

In an experiment using the MSR (muonium spin rotation) technique, the rate of the chemical reaction Mu + Cl2→ MuCl + Cl has been measured in Ar moderator gas at ≈ 1 atm and 22°C, yielding a bimolecular rate constant k= (5.2 ± 0.4) × 1010ℓ mole−1s−1. This is 4.3 times faster than the most recent room temperature rate constant for the analogous II atom reaction.

Published
1977
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