Background: The curricular requirements of nurse practitioner (NP) programs are well established. NP students' clinical practicums provide a context for the extracurricular acquisition of administrative, operational, and systems-focused NP skills.
Problem: Acquisition of extracurricular NP skills is variable and highly dependent on a student's clinical placements.
Sexual minority women (SMW) may have different experiences of macro-level events, such as changes in marriage laws or election outcomes, related to their multiple identities. African American, Latina/x, and White identities intersect with gender/sex and sexual identity to influence experiences at the intrapersonal, interpersonal, social, and political levels of the socio-ecological environment. Participants include 100 African American, 35 Latina/x, and 164 White SMW (N = 299) in Wave 4 (2017-2019) of a longitudinal study of SMW's health conducted in the United States (Chicago Health and Life Experiences of Women Study).
View Article and Find Full Text PDFWaterlogged archaeological wood comes from submerged archaeological sites (in lake, sea, river, or wetland) or from land waterlogged sites. Even if the wooden object seems to have maintained the original size and shape, the wood is more or less severely decayed because of chemical and biological factors which modify the normal ratio of cellulose and lignin in the cell wall. Drying procedures are necessary for the musealization but potentially cause severe shrinkages and collapses.
View Article and Find Full Text PDFA bio-derived power harvester from mechanical vibrations is here proposed. The harvester aims at using greener fabrication technologies and reducing the dependence from carbon-based fossil energy sources. The proposed harvester consists mainly of biodegradable matters.
View Article and Find Full Text PDFThis study expands the literature on body image among lesbian and bisexual women by examining the relationship between self-perceived gendered personality traits and expressions (i.e., sense of self in relation to cultural constructions of femininity and masculinity) and body satisfaction, a key body image construct.
View Article and Find Full Text PDFObjectives: To investigate factors associated with residual sleepiness in patients who were highly adherent to continuous positive airway pressure (CPAP). Nocturnal inactivity, comorbidities, concomitant medications, and, in particular, white matter (WM) differences using diffusion magnetic resonance imaging (MRI) were explored using a continuous-time random-walk (CTRW) model.
Methods: Twenty-seven male patients (30-55 years of age) with obstructive sleep apnea (OSA) received CPAP as the only treatment (CPAP ≥ 6 h/night) for at least 30 days.
Bacterial cellulose (BC) functionalized with silver nanoparticles (AgNPs) is evaluated as an antimicrobial membrane for wound-healing treatment. A facile green synthesis of silver nanoparticles inside the porous three-dimensional weblike BC network has been obtained by UV light irradiation. AgNPs were photochemically deposited onto the BC gel network as well as they were chemically bonded to the cellulose fiber surfaces.
View Article and Find Full Text PDFBackground: Efficacy of acupuncture is difficult to demonstrate without a feasible double-blind milieu. Double-blind acupuncture needles have been validated in single session protocols with one or two needles but not been tested in a protocol requiring many needles and repeated sessions.
Methods: We determined the feasibility of a 13-needle, 10-session study protocol.
X-ray emission by sparks implies bremsstrahlung from a population of energetic electrons, but the details of this process remain a mystery. We present detailed statistical analysis of X-ray spectra detected by multiple detectors during sparks produced by 1 MV negative high-voltage pulses with 1 μs risetime. With over 900 shots, we statistically analyze the signals, assuming that the distribution of spark X-ray fluence behaves as a power law and that the energy spectrum of X-rays detectable after traversing ∼2 m of air and a thin aluminum shield is exponential.
View Article and Find Full Text PDFDischarge experiments were carried out at the Eindhoven University of Technology in 2013. The experimental setup was designed to search for electrons produced in meter-scale sparks using a 1 MV Marx generator. Negative voltage was applied to the high voltage (HV) electrode.
View Article and Find Full Text PDFPurpose: To investigate white matter (WM) structural alterations using diffusion tensor imaging (DTI) in obstructive sleep apnea (OSA) patients, with or without residual sleepiness, following adherent continuous positive airway pressure (CPAP) treatment. Possible quantitative relationships were explored between the DTI metrics and two clinical assessments of somnolence.
Materials And Methods: Twenty-nine male patients (30-55 years old) with a confirmed diagnosis of OSA were recruited.
J Geophys Res Space Phys
October 2014
The source fluence distribution of terrestrial gamma ray flashes (TGFs) has been extensively discussed in recent years, but few have considered how the TGF fluence distribution at the source, as estimated from satellite measurements, depends on the distance from satellite foot point and assumed production altitude. As the absorption of the TGF photons increases significantly with lower source altitude and larger distance between the source and the observing satellite, these might be important factors. We have addressed the issue by using the tropopause pressure distribution as an approximation of the TGF production altitude distribution and World Wide Lightning Location Network spheric measurements to determine the distance.
View Article and Find Full Text PDFPlants are ideal bioreactors for the production of macromolecules but transport mechanisms are not fully understood and cannot be easily manipulated. Several attempts to overproduce recombinant proteins or secondary metabolites failed. Because of an independent regulation of the storage compartment, the product may be rapidly degraded or cause self-intoxication.
View Article and Find Full Text PDFArtemisinin is a sesquiterpene antimalarial compound produced, though at low levels (0.1-1% dry weight), in Artemisia annua in which it accumulates in the glandular trichomes of the plant. Due to its antimalarial properties and short supply, efforts are being made to improve our understanding of artemisinin biosynthesis and its production.
View Article and Find Full Text PDFArtemisia annua L. is a herb traditionally used for treatment of fevers. The glandular trichomes of this plant accumulate, although at low levels, artemisinin, which is highly effective against malaria.
View Article and Find Full Text PDFTocopherols, collectively known as vitamin E, are lipophilic antioxidants, essential dietary components for mammals and exclusively synthesized by photosynthetic organisms. Of the four forms (alpha, beta, gamma and delta), alpha-tocopherol is the major vitamin E form present in green plant tissues, and has the highest vitamin E activity. Synthetic alpha-tocopherol, being a racemic mixture of eight different stereoisomers, always results less effective than the natural form (R,R,R) alpha-tocopherol.
View Article and Find Full Text PDFNewcastle disease (ND) is an OIE listed disease caused by virulent avian paramyxovirus type 1 (APMV-1) strains, which affect many species of birds and may cause severe economic losses in the poultry sector. The disease has been officially and unofficially reported in many African countries and still remains the main poultry disease in commercial and rural chickens of Africa. Unfortunately, virological and epidemiological information concerning ND strains circulating in the Western and Central regions of Africa is extremely scarce.
View Article and Find Full Text PDFWe performed an experimental infection of 21- and 70-day-old meat turkeys with an early human isolate of the 2009 pandemic H1N1 influenza virus exhibiting an alpha-2,3 receptor binding profile. Virus was not recovered by molecular or conventional methods from blood, tracheal and cloacal swabs, lungs, intestine or muscle tissue. Seroconversion was detected in a limited number of birds with the homologous antigen only.
View Article and Find Full Text PDFAlpha-tocopherol is the most biologically active component of vitamin E and is synthesized only by photosynthetic organisms. Two heterotrophic cell lines of sunflower (Helianthus annuus L.) of differing alpha-tocopherol biosynthetic capability, three-fold higher in the high synthesizing cell line, HT, than in the low synthesizing one, LT, were previously identified.
View Article and Find Full Text PDFPurpose: We investigated the yield of CT in firearms wounds with pelvis involvement by evaluating the CT features of pelvis, bone walls, and associated injuries, if any. CT plays a major role, while conventional radiography remains an important integration in the workup of pelvis bone injuries.
Material And Methods: We report a retrospective series of pelvis gunshot wounds studied with CT in a 5-year period; the patients were all men, with a mean age of 38 years (range 18-56).
Objective: Percutaneous endoscopic gastrostomy (PEG) has become the preferred method to provide enteral tube feeding to older adults who have difficulty eating, but the impact of PEG on patient outcomes is poorly understood. The objective of this study was to describe changes in nutrition, functional status, and health-related quality of life among older adults receiving PEG.
Design: A prospective cohort study.
J Am Geriatr Soc
September 1999
Objective: To describe clinical decision-making for percutaneous endoscopic gastrostomy from the perspective of patients, caregivers, and physicians.
Design: A prospective cohort study.
Setting And Patients: All patients aged 60 and older receiving percutaneous endoscopic gastrostomies in a defined community over a 16-month period.
Pancreatitis is a common complication of endoscopic sphincterotomy. Cautery-induced papillary edema has been implicated as a possible cause. The objective of this study was to determine whether prophylactic stenting of the main pancreatic duct after endoscopic sphincterotomy in high-risk patients would reduce the incidence of pancreatitis.
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