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https://www.readbyqxmd.com/read/29028049/open-cavity-fiber-laser-with-distributed-feedback-based-on-externally-or-self-induced-dynamic-gratings
#1
Ivan A Lobach, Roman V Drobyshev, Andrei A Fotiadi, Evgeniy V Podivilov, Sergey I Kablukov, Sergey A Babin
Dynamic population inversion gratings induced in an active medium by counter-propagating optical fields may have a reverse effect on writing laser radiation via feedback they provide. In this Letter we report, to the best of our knowledge, on the first demonstration of an open-cavity fiber laser in which the distributed feedback is provided by a dynamic grating "written" in a Yb-doped active fiber, either by an external source or self-induced via a weak (∼0.1%) reflection from an angle-cleaved fiber end. It has been shown that meters-long dynamic grating is formed with a narrow bandwidth (<50  MHz) and a relatively high-reflection coefficient (>7%) securing single-frequency operation, but the subsequent hole-burning effects accompanied by new grating formation lead to the switching from one longitudinal mode to another...
October 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28988064/positive-appearance-and-functionality-reflections-can-improve-body-satisfaction-but-do-not-protect-against-idealised-media-exposure
#2
Kate E Mulgrew, Nicole L Stalley, Marika Tiggemann
We tested the effectiveness of a positive appearance or functionality reflective writing task on women's body satisfaction and whether these writing task reflections offered any protective advantage when exposed to idealised imagery. Young adult women (N=230; Mage=23years) wrote about positive elements of either their appearance or their body's functionality, and then were exposed to images of scenery, or thin and attractive models presented in posed or active form. Direction and amount of social comparison were also examined...
October 5, 2017: Body Image
https://www.readbyqxmd.com/read/28983149/characteristics-of-repetitive-thought-associated-with-borderline-personality-features-a-multimodal-investigation-of-ruminative-content-and-style
#3
Jessica R Peters, Tory A Eisenlohr-Moul, Brian T Upton, Nina A Talavera, Jacob J Folsom, Ruth A Baer
Increased ruminative style of thought has been well documented in borderline personality disorder (BPD); however, less is known about how the content of rumination relates to domains of BPD features. Relationships between forms of rumination and BPD features were examined in an undergraduate sample with a wide range of BPD features. Participants completed self-report measures of rumination and a free-writing task about their repetitive thought. Rumination on specific themes, including anger rumination, depressive brooding, rumination on interpersonal situations, anxious rumination, and stress-reactive rumination were significantly associated with most BPD features after controlling for general rumination...
September 2017: Journal of Psychopathology and Behavioral Assessment
https://www.readbyqxmd.com/read/28981173/effects-of-different-methods-of-reflection-on-nurses-gaze-and-judgement-in-a-task-using-a-touch-panel
#4
Ayako Nishimura
AIM AND OBJECTIVES: To clarify the effects of different methods of reflection on nurses' gaze and judgement in a task using a touch panel, written and oral methods of reflection were compared. BACKGROUND: Recently, with the development of ICT, nursing education and learning with ICT has spread. However, there are few studies that have analyzed the objective effects of learning with ICT and the effects of different methods of learning. DESIGN: This study was a randomized controlled trial comparing writing and oral reflection groups...
October 5, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28974486/combined-dietary-nitrate-and-exercise-intervention-in-peripheral-artery-disease-protocol-rationale-and-design
#5
Mary N Woessner, Mitch D VanBruggen, Carl F Pieper, Erin K O'Reilly, William E Kraus, Jason D Allen
BACKGROUND: Peripheral artery disease (PAD) is caused by atherosclerotic occlusions in the legs. It affects approximately 8-12 million people in the United States alone, one-third of whom suffer from intermittent claudication (IC), defined as ischemic leg pain that occurs with walking and improves with rest. Patients with IC suffer a markedly impaired quality of life and a high perception of disability. Improving pain-free walking time is a primary goal of rehabilitation in this population...
October 3, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28967117/how-to-write-a-critically-appraised-topic-evidence-to-underpin-routine-clinical-practice
#6
J Callander, A V Anstey, J R Ingram, J Limpens, C Flohr, P I Spuls
Critically appraised topics (CATs) are essential tools for busy clinicians who wish to ensure that their daily clinical practice is underpinned by evidence-based medicine. CATs are short summaries of the most up-to-date, high-quality available evidence that is found using thorough structured methods. They can be used to answer specific, patient-orientated questions that arise recurrently in real-life practice. This article provides readers with a detailed guide to performing their own CATs. It is split into four main sections reflecting the four main steps involved in performing a CAT: formulation of a focused question, a search for the most relevant and highest-quality evidence, critical appraisal of the evidence and application of the results back to the patient scenario...
October 1, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28957308/polymer-micro-ring-resonator-integrated-with-a-fiber-ring-laser-for-ultrasound-detection
#7
Heming Wei, Sridhar Krishnaswamy
Polymer micro-ring resonators fabricated by a direct laser writing technique are presented as sensors for ultrasound detection. The optical micro-ring resonator consists of a micro-ring waveguide that acts as a wavelength selective feedback mirror to an erbium-doped fiber-ring laser (FRL). The micro-ring resonator reflection spectrum determines the lasing frequencies of the FRL. Acoustic waves, which cause strain or deformation of the micro-ring resonator, lead to shifts of the resonance wavelength and thereby shifts in the FRL lasing spectrum...
July 1, 2017: Optics Letters
https://www.readbyqxmd.com/read/28957060/femtosecond-laser-inscription-of-bragg-grating-waveguides-in-bulk-diamond
#8
V Bharadwaj, A Courvoisier, T T Fernandez, R Ramponi, G Galzerano, J Nunn, M J Booth, R Osellame, S M Eaton, P S Salter
Femtosecond laser writing is applied to form Bragg grating waveguides in the diamond bulk. Type II waveguides are integrated with a single pulse point-by-point periodic laser modification positioned toward the edge of the waveguide core. These photonic devices, operating in the telecommunications band, allow for simultaneous optical waveguiding and narrowband reflection from a fourth-order grating. This fabrication technology opens the way toward advanced 3D photonic networks in diamond for a range of applications...
September 1, 2017: Optics Letters
https://www.readbyqxmd.com/read/28953564/medical-students-empathy-for-vulnerable-groups-results-from-a-survey-and-reflective-writing-assignment
#9
Caroline Wellbery, Pamela A Saunders, Sarah Kureshi, Adam Visconti
PURPOSE: As medical education curricula increasingly acknowledge the contributions of the social determinants of health to individual health, new methods of engaging students in the care of vulnerable groups are needed. Empathy is one way to connect students with patients, but little is known about how to nurture students' empathy on behalf of populations. This study examined the relationship between individual and social empathy as groundwork for cultivating students' empathy for vulnerable groups...
September 26, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28952412/disorganized-attachment-and-defense-exploring-john-bowlby-s-unpublished-reflections
#10
Samantha Reisz, Robbie Duschinsky, Daniel J Siegel
Main and Solomon were the first to create a formal infant Strange Situation classification of attachment disorganization. Bowlby's reflections on the underlying psychological processes of such behaviors, however, began early in his career, including the term "disorganization." Most of these remained unpublished but are available through the John Bowlby Archive. Bowlby saw affective experiences as the source of the attachment behavioral system's organization and regulation, and he introduced the term "effector equipment" to describe the emergent organization of attention, expectation, affect, and behavior to orchestrate responses to the environment...
September 27, 2017: Attachment & Human Development
https://www.readbyqxmd.com/read/28925759/can-moocs-meet-your-learning-needs
#11
David Bryson
This paper looks at the role of Massive Open Online Courses (MOOCs) in fulfilling your learning needs; from looking at what MOOCs are through to examples of courses from different Universities and advice for completing a course. The sequence of activities takes you from looking at your learning needs, to finding a course, thinking about how to plan and prepare for learning using a MOOC then writing a review or reflecting on the impact of your learning.
September 19, 2017: Journal of Visual Communication in Medicine
https://www.readbyqxmd.com/read/28923125/why-we-write-nuclear-history
#12
David K Hecht
Nuclear history always compels. Scholars (and readers) can immerse themselves in the existential threat posed by the atomic bomb and its successor weapons, the tantalizing prospect of carbon-free energy, or the study of a natural phenomenon deeply at odds with our everyday experience of the world. There is thus always something profound at stake when we write nuclear history - be it physical, economic or intellectual. And while it may seem that the end of the Cold War should have diminished the academic attention accorded to the subject, it actually just allowed the historiography to evolve...
September 2017: British Journal for the History of Science
https://www.readbyqxmd.com/read/28920726/the-human-subject-vulnerable-populations-and-medical-history-the-problem-of-presentism-and-the-discourse-of-bioethics
#13
J T H Connor
This discussion considers recent historical works of eugenics and sterilization in Canada, but it is not an historiographic review essay or critique per se of this literature. Rather, by focussing on the topic of historic diagnostic categories such as "feeble-minded," "idiot," and "moron," methodological issues such as historical presentism and its possible interactions with the discourse of modern bioethics are examined. The conclusions derived are meant only to be cautionary, and are neither prescriptive nor proscriptive...
2017: Canadian Bulletin of Medical History, Bulletin Canadien D'histoire de la Médecine
https://www.readbyqxmd.com/read/28915916/effects-of-a-silent-mentor-initiation-ceremony-and-dissection-on-medical-students-humanity-and-learning
#14
Ruei-Jen Chiou, Po-Fang Tsai, Der-Yan Han
OBJECTIVES: Many medical schools in Taiwan have adopted a dignified "silent mentor" initiation ceremony to strengthen student's medical humanity and increase their learning attitudes. This ceremony consists of introductions of the body donor's conduct and deeds, wreath-laying, and a tea party. However, few empirical studies have examined the influences of the ceremony and dissection on medical humanity. This study explored if the initiation ceremony and the course can help students care more about others, develop more positive attitudes toward death, improve learning effectiveness in the course, and decrease negative emotions the first time they see a cadaver...
September 16, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28899714/qualitative-evaluation-of-a-narrative-reflection-program-to-help-medical-trainees-recognize-and-avoid-overuse-am-i-doing-what-s-right-for-the-patient
#15
Tanner Caverly, Daniel Matlock, Jocelyn Thompson, Brandon Combs
OBJECTIVE: The Do No Harm Project is a novel reflective writing program that encourages medical trainees to reflect on and write up clinical narratives about instances of avoidable medical overuse. Our goal is to describe this program and to explore the effect of the program on those participating. METHODS: Semi-structured interviews were conducted to explore how participating in the project influenced the thinking, attitudes, and behaviors of participating internal medicine residents...
September 8, 2017: Patient Education and Counseling
https://www.readbyqxmd.com/read/28899305/writing-from-the-edge
#16
Nan Russell Yancey
On the 30th Anniversary of Nursing Science Quarterly, the 17-year journey of conceiving, launching, and guiding the "Teaching-Learning Column" was explored in this dialogue with Dr. Sandra Schmidt Bunkers, adjunct professor of nursing, South Dakota State University Brookings, South Dakota, founding contributing editor of the column, and Dr. Barbara Backer Condon, Professor of Nursing, Briar Cliff University, Sioux City, Iowa, contributing editor, 2012-2016. Reflecting on the shared stories, the challenge is offered to continue the tradition of the column in reading, writing, and thinking from the edge, to bravely consider what might be, daring to go beyond the confinements of mainstream thinking, and to vision as yet unimagined possibilities in teaching-learning in nursing...
January 2017: Nursing Science Quarterly
https://www.readbyqxmd.com/read/28898728/nursing-students-collaborating-to-develop-multiple-choice-exam-revision-questions-a-student-engagement-study
#17
Judy A Craft, Martin Christensen, Natasha Shaw, Shannon Bakon
BACKGROUND: Nursing students find bioscience subjects challenging. Bioscience exams pose particular concerns for these students, which may lead to students adopting a surface-approach to learning. OBJECTIVES: To promote student collective understanding of bioscience, improve their confidence for the final exam, and improve deeper understanding of bioscience. DESIGN: In order to address exam anxiety, and improve student understanding of content, this student engagement project involved nursing students collaborating in small groups to develop multiple-choice questions and answers, which became available to the entire student cohort...
September 6, 2017: Nurse Education Today
https://www.readbyqxmd.com/read/28895903/performable-case-studies-in-ethics-education
#18
Richard Robeson, Nancy M P King
Bioethics education often includes the study of short stories, novels, plays, and films, because such materials present case examples that can highlight relevant issues and questions especially vividly for a wide range of students. In addition, creative writing is widely used in the education of health professional students and in continuing education settings for health professionals. There are very few academic or professional disciplines that do not use case studies, but the case study in dialogic form has not been standard practice for thousands of years...
September 12, 2017: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/28890446/my-time-in-medicine
#19
Joseph J Fins
Through this autobiographical reflection on a life in medicine and bioethics, the author discovers that time is a unifying theme in his work. From his early writing on the regulation of house staff work hours and his abandonment of essentialism and the development of clinical pragmatism as a method of moral problem-solving to his scholarship on end-of-life care and disorders of consciousness, time has been a central heuristic in an effort to bridge ethical theory and clinical practice.
2017: Perspectives in Biology and Medicine
https://www.readbyqxmd.com/read/28884815/the-effect-of-expressive-writing-on-the-error-related-negativity-among-individuals-with-chronic-worry
#20
Hans S Schroder, Tim P Moran, Jason S Moser
The error-related negativity (ERN), an ERP elicited immediately after errors, is enlarged among individuals with anxiety. The relationship between anxiety and enlarged ERN has spurred interest in understanding potential therapeutic benefits of decreasing its amplitude within anxious individuals. The current study used a tailored intervention-expressive writing-in an attempt to reduce the ERN among a sample of individuals with chronic worry. Consistent with hypotheses, the ERN was reduced in the expressive writing group compared to an unrelated writing control group...
September 8, 2017: Psychophysiology
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