Publications by authors named "HN Brown"

A key regulator of collective cell migration is prostaglandin (PG) signaling. However, it remains largely unclear whether PGs act within the migratory cells or their microenvironment to promote migration. Here we use border cell migration as a model to uncover the cell-specific roles of two PGs in collective migration.

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The complex and multifactorial etiology of obesity creates challenges for its effective long-term management. Increasingly, the gut microbiome is reported to play a key role in the maintenance of host health and wellbeing, with its dysregulation associated with chronic diseases such as obesity. The gut microbiome is hypothesized to contribute to obesity development and pathogenesis via several pathways involving food digestion, energy harvest and storage, production of metabolites influencing satiety, maintenance of gut barrier integrity, and bile acid metabolism.

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A key regulator of collective cell migration is prostaglandin (PG) signaling. However, it remains largely unclear whether PGs act within the migratory cells or their microenvironment to promote migration. Here we use border cell migration as a model to uncover the cell-specific roles of two PGs in collective migration.

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In this study, we considered potential causes of variation in testis size in the livebearing fish . We evaluated variation in testes mass among individual males and among populations that occupy different selective environments. First, we predicted that small males should allocate more to testes mass than large males (i.

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The spin precession frequency of muons stored in the (g-2) storage ring has been analyzed for evidence of Lorentz and CPT violation. Two Lorentz and CPT violation signatures were searched for a nonzero delta omega a(=omega a mu+ - omega a mu-) and a sidereal variation of omega a mu+/-). No significant effect is found, and the following limits on the standard-model extension parameters are obtained: bZ = -(1.

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Three known non-synonymous polymorphisms (Ala394Thr, Ser471Leu and Pro690Ala) in the largest circadian gene, Neuronal PAS domain protein 2 (NPAS2), were genotyped in a breast cancer case-control study conducted in Connecticut, USA (431 cases and 476 controls). We found that women with the heterozygous Ala394Thr genotype were significantly associated with breast cancer risk compared to those with the common homozygous Ala394Ala (OR = 0.61, 0.

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Circadian disruption is theorized to cause immune dysregulation, which is the only established risk factor for non-Hodgkin's lymphoma (NHL). Genes responsible for circadian rhythm are also involved in cancer-related biological pathways as potential tumor suppressors. However, no previous studies have examined associations between circadian genes and NHL risk.

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College Bound Sisters (CBS) is a program that helps younger sisters of teenage mothers change their life trajectory by accomplishing three objectives: avoidance of pregnancy, completion of high school, and enrollment in college. Data related to religious activities and accomplishment of the three objectives for 129 members were analyzed using chi square. CBS defines health as the accomplishment of the three program objectives using Norbeck's theoretical model of social support.

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Introduction: MBD2, the gene encoding methyl-CpG-binding domain (MBD)2, is a major methylation related gene and functions as a transcriptional repressor that can specifically bind to the methylated regions of other genes. MBD2 may also mediate gene activation because of its potential DNA demethylase activity. The present case-control study investigated associations between two single nucleotide polymorphisms (SNPs) in the MBD2 gene and breast cancer risk.

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Due to increasing competitiveness in healthcare, emergency department personnel should focus on patient satisfaction initiatives.

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Circadian disruption has been indicated as a risk factor for breast cancer in recent epidemiologic studies. A novel finding in circadian biology is that genes responsible for circadian rhythm also regulate many other biological pathways, including cell proliferation, cell cycle regulation, and apoptosis. Therefore, mutations in circadian genes could conceivably result in deregulation of these processes and contribute to tumor development, and be markers for susceptibility to human cancer.

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The anomalous magnetic moment of the negative muon has been measured to a precision of 0.7 ppm (ppm) at the Brookhaven Alternating Gradient Synchrotron. This result is based on data collected in 2001, and is over an order of magnitude more precise than the previous measurement for the negative muon.

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A higher precision measurement of the anomalous g value, a(mu)=(g-2)/2, for the positive muon has been made at the Brookhaven Alternating Gradient Synchrotron, based on data collected in the year 2000. The result a(mu(+))=11 659 204(7)(5)x10(-10) (0.7 ppm) is in good agreement with previous measurements and has an error about one-half that of the combined previous data.

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Purpose: To explore hospitalized patients' attitudes toward advance directives, their reasons for completing or not completing advance directive forms, and demographic differences between patients who did and did not complete advance directive forms.

Design And Method: The convenience sample comprised 30 hospitalized patients in North Carolina. Participants were interviewed using an adapted advance directive attitude survey (ADAS), and were asked five general questions about advance directives.

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A precise measurement of the anomalous g value, a(mu) = (g-2)/2, for the positive muon has been made at the Brookhaven Alternating Gradient Synchrotron. The result a(mu+) = 11 659 202(14) (6) x 10(-10) (1.3 ppm) is in good agreement with previous measurements and has an error one third that of the combined previous data.

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Excessive time was being spent by the emergency department (ED) staff, head nurse, and unit secretary on a complex 6-week manual self-scheduling system. This issue, plus inevitable errors and staff dissatisfaction, resulted in a manager-lead initiative to automate elements of the scheduling process using Microsoft Excel. The implementation of this initiative included: common coding of all 8-hour and 12-hour shifts, with each 4-hour period represented by a cell; the creation of a 6-week master schedule using the "count-if" function of Excel based on current staffing guidelines; staff time-off requests then entered by the department secretary; the head nurse, with staff input, then fine-tuned the schedule to provide even unit coverage.

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A pilot study in which faculty from nursing and English departments at two universities in different states shared a common evaluation tool and collaborated through e-mail to evaluate the evidence of critical thinking in writing portfolios of baccalaureate and masters' nursing students. Loxley's (1997) four processes--assessment, building, managing the process, and evaluating--are used as a framework for describing collaboration among the disciplines in the two universities. Social exchange theory was used to explain the collaboration between participants.

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The Asian population in the United States is the fastest growing minority; consequently it behooves psychiatric nurses and other mental health professionals to be aware of symptom presentation of emotional problems that may differ from those of other population groups. Specific syndromes, psychiatric disorders, and symptoms that commonly present as physical disorders are discussed. Recommended adaptations of psychiatric interventions, including medications and other therapies, are offered to enable mental health professionals to provide culturally sensitive care.

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Mentoring new faculty.

Nurse Educ

October 1999

This is a report of the process and evaluation of 12 years of mentoring new faculty in a university nursing faculty of 48 members. Each new faculty member is paired with an experienced faculty member who serves as a mentor for a year. Evaluations completed by both new faculty and mentors at the end of the year are positive.

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