4,766 research outputs found
Aneurysmal degeneration of blalock-taussig shunts: Identification and surgical treatment options
Many Blalock-Taussig shunts (subclavian to pulmonary artery anastomoses) have been created and a significant number are still being done. Two cases of aneurysmal degeneration of a Blalock-Taussig shunt and their management are described. Development of this rare complication may be related to large shunt flow and long duration. Large, symptomatic or enlarging aneurysms should be repaired and smaller ones studied by serial computed axial tomography. A simple and safe approach to correct this lesion is division and oversewing of the proximal subclavian artery through an anterior approach, assuming adequate pulmonary blood flow is already present or can be established concomitantly
Nursing Students' Experience of Sexual Harassment During Clinical Practicum: A Phenomenological Approach
PURPOSE: To describe nursing students' experience of sexual harassment during clinical practicum.
METHODS: An interpretive phenomenological qualitative approach was used to understand contextual experiences of participants. Individual in-depth interviews were conducted to collect data from thirteen nursing students who experienced sexual harassment during clinical practice in general hospitals at D metropolitan city. All interviews were recorded and transcribed into Korean and English. Transcripts were analyzed using the data analysis method described by Diekelmann, Allen, and Tanner.
RESULTS: The following 12 themes emerged from the data: ‘unprepared to respond’, ‘lack of education’, ‘unsure about when behavior crosses the line’, ‘power differential for nursing students’, ‘balancing self-preservation with obligations to patients’, ‘shame’, ‘feeling responsible for not being able to prevent the harassment’, ‘impact on patient care’, ‘fear of what might have happened’, ‘fear of repercussions’, ‘long term impact’, and ‘peer support’.
CONCLUSION: Participants in this study described feeling an obligation to care for their patients. However, they seemed to be unable to balance this while feeling vulnerable to sexual harassment with strong negative feelings. Helping students recognize and effectively deal with sexual harassment is a critical element to assure quality learning for participants and maintain quality of care during clinical practice
Early caregiving predicts attachment representations in adolescence: Findings from two longitudinal studies
Background:
A growing research base demonstrates that adolescents’ construction of secure attachment relationships may underlie successful social and personal relationships and healthy behavioral adjustment. Little is known about the early caregiving origins of adolescent attachment security; this study provides some of the first data on this topic.
Method:
The relative contribution of early and current caregiving quality to attachment security in adolescence was assessed in two longitudinal studies of a clinic-referred and an at-risk community sample using identical measures (n=209). Quality of early parent-child relationships at age 3-7 years of age and parent-adolescent relationship quality at approximately 12 years were assessed using observational methods; psychosocial risk was derived from extensive interview and questionnaire assessments; adolescent attachment quality was assessed using a standard attachment interview.
Results:
Analyses indicated moderate stability in observed parent-child interaction quality from early childhood to adolescence. Observational ratings of both early childhood and current caregiving quality were significantly associated with adolescent attachment security; however, early caregiver sensitivity was more strongly associated with adolescent attachment security and predicted later attachment security independently from current caregiving quality. Follow-up analyses indicated that this longitudinal prediction was significantly weaker in the clinic than in the at-risk community sample.
Conclusion:
Parental sensitive responding in childhood has enduring effects on attachment representation in adolescence, independent of current parenting relationship quality. These findings provide important new evidence supporting early parenting interventions for promoting youth well-being and adjustment
X-ray Bright Active Galactic Nuclei in Massive Galaxy Clusters I: Number Counts and Spatial Distribution
We present an analysis of the X-ray bright point source population in 43
massive clusters of galaxies observed with the Chandra X-ray Observatory. We
have constructed a catalog of 4210 rigorously selected X-ray point sources in
these fields, which span a survey area of 4.2 square degrees. This catalog
reveals a clear excess of sources when compared to deep blank-field surveys,
which amounts to roughly 1 additional source per cluster, likely Active
Galactic Nuclei (AGN) associated with the clusters. The excess sources are
concentrated within the virial radii of the clusters, with the largest excess
observed near the cluster centers. The average radial profile of the excess
X-ray sources of the cluster are well described by a power law (N(r) ~ r^\beta)
with an index of \beta ~ -0.5. An initial analysis using literature results on
the mean profile of member galaxies in massive X-ray selected clusters
indicates that the fraction of galaxies hosting X-ray AGN rises with increasing
clustercentric radius, being approximately 5 to 10 times higher near the virial
radius than in the central regions. This trend is qualitatively similar to that
observed for star formation in cluster member galaxies.Comment: 18 Pages, 10 Figures, Submitted to MNRAS. Please contact Steven
Ehlert ([email protected]) for higher resolution figures. Updated to
reflect small changes requested by referee. This version has been accepted
into MNRA
Microstructural differences in the thalamus and thalamic radiations in the congenitally deaf
There is evidence of both crossmodal and intermodal plasticity in the deaf brain. Here, we investigated whether sub-cortical plasticity, specifically of the thalamus, contributed to this reorganisation. We contrasted diffusion weighted magnetic resonance imaging data from 13 congenitally deaf and 13 hearing participants, all of whom had learnt British Sign Language after 10 years of age. Connectivity based segmentation of the thalamus revealed changes to mean and radial diffusivity in occipital and frontal regions, which may be linked to enhanced peripheral visual acuity, and differences in how visual attention is deployed in the deaf group. Using probabilistic tractography, tracts were traced between the thalamus and its cortical targets, and microstructural measurements were extracted from these tracts. Group differences were found in microstructural measurements of occipital, frontal, somatosensory, motor and parietal thalamo-cortical tracts. Our findings suggest there is sub-cortical plasticity in the deaf brain, and that white matter alterations can be found throughout the deaf brain, rather than being restricted to, or focussed in auditory cortex
Tumor innate immunity primed by specific interferon-stimulated endogenous retroviruses.
Mesenchymal tumor subpopulations secrete pro-tumorigenic cytokines and promote treatment resistance1-4. This phenomenon has been implicated in chemorefractory small cell lung cancer and resistance to targeted therapies5-8, but remains incompletely defined. Here, we identify a subclass of endogenous retroviruses (ERVs) that engages innate immune signaling in these cells. Stimulated 3 prime antisense retroviral coding sequences (SPARCS) are oriented inversely in 3' untranslated regions of specific genes enriched for regulation by STAT1 and EZH2. Derepression of these loci results in double-stranded RNA generation following IFN-γ exposure due to bi-directional transcription from the STAT1-activated gene promoter and the 5' long terminal repeat of the antisense ERV. Engagement of MAVS and STING activates downstream TBK1, IRF3, and STAT1 signaling, sustaining a positive feedback loop. SPARCS induction in human tumors is tightly associated with major histocompatibility complex class 1 expression, mesenchymal markers, and downregulation of chromatin modifying enzymes, including EZH2. Analysis of cell lines with high inducible SPARCS expression reveals strong association with an AXL/MET-positive mesenchymal cell state. While SPARCS-high tumors are immune infiltrated, they also exhibit multiple features of an immune-suppressed microenviroment. Together, these data unveil a subclass of ERVs whose derepression triggers pathologic innate immune signaling in cancer, with important implications for cancer immunotherapy
The Vehicle, Fall 2010
Table of ContentsPoetryFill Your Mouth with BerriesAaron Whitepage 1
RelationsJamie Van Allenpage 2
ExodusMegan Marie Olsonpage 4
Single FileRashelle McNairpage 7
The Aesthetic Value of the Moon, by CandlelightKathy Deckerpage 15
FactalsGabrielle Keigherpage 16
Day 5David Jacksonpage 17
Esta LloviendoHeather Gerrishpage 19
FacebrokeDarrin Gordonpage 23
5:08 pmNikki Riechertpage 24
Train TunnelsAshton Tembypage 34
VariationsKathy Deckerpage 35
WantRashelle McNairpage 36
FriendshipScott Maypage 37
Golden LandJacob Swansonpage 38
Last Night I DreamtAshton Tembypage 39
Smallest GestureScott Maypage 44
Somebody\u27s Hut in MexicoGinamarie Lobiancopage 45
Some Things You Just Can\u27t Tap Dance AroundClint Walkerpage 53
Prose
Lamparus de DiosAaron Whitepage 8
Learning CurveScott Maypage 18
RocktonKatelyn Pfaffpage 20
Fatal DistractionSolomohn Ennispage 25
Noodle NonsenseGabrielle Keigherpage 41
AntarcticaMichael Payeapage 46
Special Features
James K Johnson Award Winners:
God is GraciousJohn Klyczekpage 57
To My Ever Growing ChestJennifer Hindespage 74
God\u27s ScapegoatJennifer Hindespage 76
Rape (Verb, Noun)Jennifer Hindespage 78
Featured Artist: Ashton Tembypage 81
Editor\u27s Pick: The Shooter by Patrick Hallpage 87
Chapbook 2010 Author:Kim Hunter-Perkinspage 114
About the Contributorspage 118
About the Editorspage 122https://thekeep.eiu.edu/vehicle/1092/thumbnail.jp
The Vehicle, Fall 2010
Table of ContentsPoetryFill Your Mouth with BerriesAaron Whitepage 1
RelationsJamie Van Allenpage 2
ExodusMegan Marie Olsonpage 4
Single FileRashelle McNairpage 7
The Aesthetic Value of the Moon, by CandlelightKathy Deckerpage 15
FactalsGabrielle Keigherpage 16
Day 5David Jacksonpage 17
Esta LloviendoHeather Gerrishpage 19
FacebrokeDarrin Gordonpage 23
5:08 pmNikki Riechertpage 24
Train TunnelsAshton Tembypage 34
VariationsKathy Deckerpage 35
WantRashelle McNairpage 36
FriendshipScott Maypage 37
Golden LandJacob Swansonpage 38
Last Night I DreamtAshton Tembypage 39
Smallest GestureScott Maypage 44
Somebody\u27s Hut in MexicoGinamarie Lobiancopage 45
Some Things You Just Can\u27t Tap Dance AroundClint Walkerpage 53
Prose
Lamparus de DiosAaron Whitepage 8
Learning CurveScott Maypage 18
RocktonKatelyn Pfaffpage 20
Fatal DistractionSolomohn Ennispage 25
Noodle NonsenseGabrielle Keigherpage 41
AntarcticaMichael Payeapage 46
Special Features
James K Johnson Award Winners:
God is GraciousJohn Klyczekpage 57
To My Ever Growing ChestJennifer Hindespage 74
God\u27s ScapegoatJennifer Hindespage 76
Rape (Verb, Noun)Jennifer Hindespage 78
Featured Artist: Ashton Tembypage 81
Editor\u27s Pick: The Shooter by Patrick Hallpage 87
Chapbook 2010 Author:Kim Hunter-Perkinspage 114
About the Contributorspage 118
About the Editorspage 122https://thekeep.eiu.edu/vehicle/1092/thumbnail.jp
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Does Gender Influence Colour Choice in the Treatment of Visual Stress?
Purpose
Visual Stress (VS) is a condition in which words appear blurred, in motion, or otherwise distorted when reading. Some people diagnosed with VS find that viewing black text on white paper through coloured overlays or precision tinted lenses (PTLs) reduces symptoms attributed to VS. The aim of the present study is to determine whether the choice of colour of overlays or PTLs is influenced by a patient’s gender.
Methods
Records of all patients attending a VS assessment in two optometry practices between 2009 and 2014 were reviewed retrospectively. Patients who reported a significant and consistent reduction in symptoms with either overlay and or PTL were included in the analysis. Overlays and PTLs were categorized as stereotypical male, female or neutral colours based on gender preferences as described in the literature. Chi-square analysis was carried out to determine whether gender (across all ages or within age groups) was associated with overlay or PTL colour choice.
Results
279 patients (133 males and 146 females, mean age 17 years) consistently showed a reduction in symptoms with an overlay and were included. Chi-square analysis revealed no significant association between the colour of overlay chosen and male or female gender (Chi-square 0.788, p = 0.674). 244 patients (120 males and 124 females, mean age 24.5 years) consistently showed a reduction in symptoms with PTLs and were included. Chi-square analysis revealed a significant association between stereotypical male/female/neutral colours of PTLs chosen and male/female gender (Chi-square 6.46, p = 0.040). More males preferred stereotypical male colour PTLs including blue and green while more females preferred stereotypical female colour PTLs including pink and purple.
Conclusions
For some VS patients, the choice of PTL colour is influenced not only by the alleviation of symptoms but also by other non-visual factors such as gender
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