Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 2 de 2
Filter
Add more filters










Database
Language
Publication year range
1.
J Prof Nurs ; 49: 155-157, 2023.
Article in English | MEDLINE | ID: mdl-38042549

ABSTRACT

A diverse nursing workforce is key to addressing health disparities and moving the United States towards health equity. Building and sustaining a diverse nursing work force requires close attention to admissions, including interviews. Bias in nursing school interviews has been documented, particularly impacting applicants from historically excluded groups (especially racial and ethnic minorities). With the pivot to remote interviews due to Covid 19, faculty and schools now need to consider bias in remote interviews. This article describes the implementation and outcomes of a faculty training to identify and mitigate bias in remote interviews.


Subject(s)
Nurse Practitioners , Humans , United States , Schools, Nursing , Faculty
2.
Biophys J ; 107(7): 1703-11, 2014 Oct 07.
Article in English | MEDLINE | ID: mdl-25296324

ABSTRACT

The four-stranded i-motif (iM) conformation of cytosine-rich DNA has importance to a wide variety of biochemical systems that range from their use in nanomaterials to potential roles in oncogene regulation. The iM structure is formed at slightly acidic pH, where hemiprotonation of cytosine results in a stable C-C(+) basepair. Here, we performed fundamental studies to examine iM formation from a C-rich strand from the promoter of the human c-MYC gene. We used a number of biophysical techniques to characterize both the hydrodynamic properties and folding kinetics of a folded iM. Our hydrodynamic studies using fluorescence anisotropy decay and analytical ultracentrifugation show that the iM structure has a compact size in solution and displays the rigidity of a double strand. By studying the rates of circular dichroism spectral changes and quenching of fluorescent cytidine analogs, we also established a mechanism for the folding of a random coil oligo into the iM. In the course of determining this folding pathway, we established that the fluorescent dC analogs tC° and PdC can be used to monitor individual residues of an iM structure and to determine the pKa of an iM. We established that the C-C(+) hydrogen bonding of certain bases initiates the folding of the iM structure. We also showed that substitutions in the loop regions of iMs give a distinctly different kinetic signature during folding compared with bases that are intercalated. Our data reveal that the iM passes through a distinct intermediate form between the unfolded and folded forms. Taken together, our results lay the foundation for using fluorescent dC analogs to follow structural changes during iM formation. Our technique may also be useful for examining folding and structural changes in more complex iMs.


Subject(s)
Cytidine/analogs & derivatives , DNA/chemistry , DNA/genetics , Hydrodynamics , Nucleotide Motifs , Promoter Regions, Genetic , Proto-Oncogene Proteins c-myc/genetics , DNA/metabolism , Fluorescent Dyes/chemistry , Humans , Kinetics , Temperature
SELECTION OF CITATIONS
SEARCH DETAIL
...