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https://www.readbyqxmd.com/read/28102789/implications-for-research-and-practice-of-the-biographic-approach-for-storytelling
#1
Beverley Ewens, Joyce Hendricks, Deb Sundin
Background Intensive care unit survivors face many physical and psychological difficulties during their recovery following discharge from hospital. These difficulties can significantly affect their quality of life. Healthcare providers and survivors' families often do not understand what recovery means in this population, which may affect the support provided. Aim To consider the potential of the biographical method in helping to create stories that illustrate recovery in intensive care survivors and other populations...
January 23, 2017: Nurse Researcher
https://www.readbyqxmd.com/read/28102112/dutiful-daughters-hiv-aids-moral-pragmatics-female-citizenship-and-structural-violence-among-devadasis-in-northern-karnataka-india
#2
Shamshad Khan, Robert Lorway, Claudyne Chevrier, Sumit Dutta, Satyanarayana Ramanaik, Anu Roy, Parinita Bhattacharjee, Sharmistha Mishra, Stephen Moses, James Blanchard, Marissa Becker
Decades of research have documented how sex workers worldwide, particularly female sex workers (FSWs), shoulder a disproportionate burden of the HIV epidemic. In India, although a substantial progress has been made in controlling the epidemic, its prevalence among FSWs and the Devadasis (also called traditional sex workers) in northern Karnataka is still significantly high. On the other hand, much of the HIV prevention research has focused on their mapping and size estimation, typologies, bio-behavioural surveillance, condom use and other prevention technologies...
January 19, 2017: Global Public Health
https://www.readbyqxmd.com/read/28101411/simultaneous-multimodal-ophthalmic-imaging-using-swept-source-spectrally-encoded-scanning-laser-ophthalmoscopy-and-optical-coherence-tomography
#3
Joseph D Malone, Mohamed T El-Haddad, Ivan Bozic, Logan A Tye, Lucas Majeau, Nicolas Godbout, Andrew M Rollins, Caroline Boudoux, Karen M Joos, Shriji N Patel, Yuankai K Tao
Scanning laser ophthalmoscopy (SLO) benefits diagnostic imaging and therapeutic guidance by allowing for high-speed en face imaging of retinal structures. When combined with optical coherence tomography (OCT), SLO enables real-time aiming and retinal tracking and provides complementary information for post-acquisition volumetric co-registration, bulk motion compensation, and averaging. However, multimodality SLO-OCT systems generally require dedicated light sources, scanners, relay optics, detectors, and additional digitization and synchronization electronics, which increase system complexity...
January 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28101407/intraluminal-laser-speckle-rheology-using-an-omni-directional-viewing-catheter
#4
Jing Wang, Masaki Hosoda, Diane M Tshikudi, Zeinab Hajjarian, Seemantini K Nadkarni
A number of disease conditions in luminal organs are associated with alterations in tissue mechanical properties. Here, we report a new omni-directional viewing Laser Speckle Rheology (LSR) catheter for mapping the mechanical properties of luminal organs without the need for rotational motion. The LSR catheter incorporates multiple illumination fibers, an optical fiber bundle and a multi-faceted mirror to permit omni-directional viewing of the luminal wall. By retracting the catheter using a motor-drive assembly, cylindrical maps of tissue mechanical properties are reconstructed...
January 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28101044/heads-up-macular-surgery-with-a-27-gauge-microincision-vitrectomy-system-and-minimal-illumination
#5
Hiroshi Kunikata, Toshiaki Abe, Toru Nakazawa
OBJECTIVE: We combined heads-up 3-dimensional (3D) 27-gauge microincision vitrectomy surgery (27GMIVS) with a very low-intensity illumination system. METHODS: This study was based on a retrospective, interventional case series of 6 eyes of 6 patients with macular disease. All patients underwent heads-up 3D 27GMIVS and the power of the intraocular illuminator was set to its minimum level, 1% (approximately 0.1 lm), throughout the surgery. RESULTS: We found that the procedure was easy when the heads-up 3D system was used, but not through the eyepiece of a microscope...
September 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28100660/secondary-electron-effect-on-electron-beam-induced-charging-of-sio2-particle-analyzed-by-electron-holography
#6
Hiroaki Suzuki, Zentaro Akase, Kodai Niitsu, Toshiaki Tanigaki, Daisuke Shindo
Charging of a SiO2 particle induced by electron illumination was investigated by changing the illuminated area of the particle and its support film through control of the position of the mask plate inserted in a transmission electron microscope illumination system. The electric fields around the charged SiO2 particle were analyzed using electron holography. The amount of charge was evaluated quantitatively by comparing the reconstructed phase images with the simulated phase images. When the support film was not covered against the incident electron beam, secondary electrons emitted from the conductive support film were attracted to the charged particle, resulting in particle discharge...
January 17, 2017: Microscopy
https://www.readbyqxmd.com/read/28100044/conceptions-of-teaching-an-illustrated-review
#7
REVIEW
Michael Ross
BACKGROUND: Asking teachers what the term 'teaching' means to them can be a useful first activity in a faculty development session, as it typically leads to an engaging and enlightening discussion for participants and facilitators. Mapping their responses to 'conceptions of teaching' (sets of assumptions, knowledge and beliefs about teaching) in the literature seems particularly helpful in illuminating the inconsistencies, gaps and additional ways of thinking about teaching that participants may wish to consider...
February 2017: Clinical Teacher
https://www.readbyqxmd.com/read/28099714/zika-virus-infection-in-brazil-and-human-rights-obligations
#8
Debora Diniz, Sinara Gumieri, Beatriz Galli Bevilacqua, Rebecca J Cook, Bernard M Dickens
The February 2016 WHO declaration that congenital Zika virus syndrome constitutes a Public Health Emergency of International Concern reacted to the outbreak of the syndrome in Brazil. Public health emergencies can justify a spectrum of human rights responses, but in Brazil, the emergency exposed prevailing inequities in the national healthcare system. The government's urging to contain the syndrome, which is associated with microcephaly among newborns, is confounded by lack of reproductive health services. Women with low incomes in particular have little access to such health services...
January 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28098971/photodiode-response-in-a-ch3nh3pbi3-ch3nh3sni3-heterojunction
#9
Massimo Spina, Laszlo Mihaly, Karoly Holczer, Bálint Náfrádi, Andrea Pisoni, László Forró, Endre Horváth
Here we report another surprising feature of this material family, the photo-tunability of the diode response of a heterojunction made of CH3NH3PbI3 and its close relative, CH3NH3SnI3. In the dark state the device behaves as a diode, with the Sn homologue acting as the "p" side. The junction is extremely sensitive to illumination. A complete reversal of the diode polarity, the first observation of its kind, is seen when the junction is exposed to red laser light of 25 mW/cm(2) or larger power density. This finding opens up the possibility for a novel class of opto-electronic devices...
January 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28098273/high-definition-infrared-chemical-imaging-of-colorectal-tissue-using-a-spero-qcl-microscope
#10
B Bird, J Rowlette
Mid-infrared microscopy has become a key technique in the field of biomedical science and spectroscopy. This label-free, non-destructive technique permits the visualisation of a wide range of intrinsic biochemical markers in tissues, cells and biofluids by detection of the vibrational modes of the constituent molecules. Together, infrared microscopy and chemometrics is a widely accepted method that can distinguish healthy and diseased states with high accuracy. However, despite the exponential growth of the field and its research world-wide, several barriers currently exist for its full translation into the clinical sphere, namely sample throughput and data management...
January 18, 2017: Analyst
https://www.readbyqxmd.com/read/28097807/parent-adolescent-influences-on-everyday-dietary-practices-perceptions-of-adolescent-females-with-obesity-and-their-mothers
#11
Megan R Winkler, Elizabeth D Moore, Gary G Bennett, Sarah C Armstrong, Debra H Brandon
Parents demonstrate an important influence on adolescent obesity and dietary behavior; yet, family-based obesity interventions continue to exhibit limited success among adolescents. To further inform family-based approaches for adolescent obesity treatment, we examined the perceptions of adolescent females with obesity and their mothers of the influences experienced within the parent-adolescent relationship that affect everyday dietary practices. We conducted six focus group interviews (three adolescent female and three mother) among 15 adolescent (12-17 years old) females with obesity and 12 of their mothers...
January 17, 2017: Maternal & Child Nutrition
https://www.readbyqxmd.com/read/28095791/a-person-centred-and-thriving-promoting-intervention-in-nursing-homes-study-protocol-for-the-u-age-nursing-home-multi-centre-non-equivalent-controlled-group-before-after-trial
#12
David Edvardsson, Karin Sjögren, Qarin Lood, Ådel Bergland, Marit Kirkevold, Per-Olof Sandman
BACKGROUND: The literature suggests that person-centred care can contribute to quality of life and wellbeing of nursing home residents, relatives and staff. However, there is sparse research evidence on how person-centred care can be operationalised and implemented in practice, and the extent to which it may promote wellbeing and satisfaction. Therefore, the U-Age nursing home study was initiated to deepen the understanding of how to integrate person-centred care into daily practice and to explore the effects and meanings of this...
January 17, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28095542/the-two-faces-of-fractionated-photodynamic-therapy-increasing-efficacy-with-light-fractionation-or-adjuvant-use-of-fractional-laser-technology
#13
Margit L W Juhasz, Melissa K Levin, Ellen S Marmur
"Fractionated photodynamic therapy (PDT)" is a new term being used by dermatologists to describe advances in PDT technology including fractionated light or the adjuvant use of fractional lasers. Although dermatologists have used PDT since the early 1990s for the treatment of photodamage and precancerous lesions, newer developments in technology have allowed for the treatment of non-melanoma skin cancers (NMSCs), in ammatory disorders, and even uses in the eld of anti-aging. Recent developments in fractionated light therapy have allowed for PDT with dark intervals and two-fold illumination schemes to increase cellular damage and apoptosis...
November 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28094957/spatially-resolved-imaging-on-photocarrier-generations-and-band-alignments-at-perovskite-pbi2-hetero-interfaces-of-perovskite-solar-cells-by-light-modulated-scanning-tunneling-microscopy
#14
Min-Chuan Shih, Shao-Sian Li, Cheng-Hua Hsieh, Ying-Chiao Wang, Hung-Duen Yang, Ya-Ping Chiu, Chia-Seng Chang, Chun-Wei Chen
The presence of the PbI2 passivation layers at perovskite crystal grains has been found to con-siderably affect the charge carrier transport behaviors and device performance of perovskite so-lar cells. This work demonstrates the application of a novel light-modulated scanning tunneling microscopy (LM-STM) technique to reveal the interfacial electronic structures at the hetero-interfaces between CH3NH3PbI3 perovskite crystals and PbI2 passivation layer of individual perovskite grains under light illumination...
January 17, 2017: Nano Letters
https://www.readbyqxmd.com/read/28094925/retinal-based-proton-pumping-in-the-near-infra-red
#15
Srividya Ganapathy, Hanka Venselaar, Que Chen, Huub J M de Groot, Klaas J Hellingwerf, Willem J de Grip
Proteorhodopsin (PR) and Gloeobacter rhodopsin (GR) are retinal-based light-driven proton pumps which absorb visible light (maxima 520-540 nm). Shifting the action spectra of these proton pumps beyond 700 nm would generate new prospects in optogenetics, membrane sensor technology, and complementation of oxygenic phototrophy. We thereby investigated the effect of red-shifting analogs of retinal, combined with red-shifting mutations, on the spectral properties and pump activity of the resulting pigments. We investigated a variety of analogs, including many novel ones...
January 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28094380/crystallization-and-flow-in-active-patch-systems
#16
Jaffar Hasnain, Georg Menzl, Swetlana Jungblut, Christoph Dellago
Based upon recent experiments in which Janus particles are made into active swimmers by illuminating them with laser light, we explore the effect of applying a light pattern on the sample, thereby creating activity inducing zones or active patches. We simulate a system of interacting Brownian diffusers that become active swimmers when moving inside an active patch and analyze the structure and dynamics of the ensuing stationary state. We find that, in some respects, the effect of spatially inhomogeneous activity is qualitatively similar to a temperature gradient...
January 17, 2017: Soft Matter
https://www.readbyqxmd.com/read/28092824/chemically-modified-amino-porphyrin-tio2-for-the-degradation-of-acid-black-1-under-day-light-illumination
#17
Balu Krishnakumar, Avula Balakrishna, Cláudia T Arranja, Carlos M F Dias, Abilio J F N Sobral
In this paper, for the first time, chemically modified 5,10,15,20-meso-tetra-(para-amino)-phenyl-porphyrin/TiO2 (TPAPP/TiO2) was prepared and used for the degradation of an azo dye Acid Black 1 (AB 1) under direct sunlight. Initially, TiO2 was prepared by sol-gel method. Before making a TPAPP/TiO2 composite, the surface modification of TiO2 was carried out with glycidoxypropyltrimethoxy silane (GPTMS) which acts as a coupling agent. This is an epoxy terminated silane and could easily bond to the amino group of TPAPP through epoxy cleavage...
January 9, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28092584/temporally-coherent-illumination-normalization-for-indocyanine-green-video-angiography
#18
Wei-Yang Lin, Shu-Fu Chou, Chia-Ling Tsai, Shih-Jen Chen
Indocyanine green (ICG) angiography is an imaging method for Doctors to observe choroidal abnormalities in human eyes. The ICG angiograms typically exhibit inhomogeneous illumination which poses serious difficulties for the development of computer-aided diagnostic tools. In this paper, we propose a novel illumination normalization method to alleviate the inhomogeneous illumination in ICG video angiograms. In particular, we first align the viewpoint of the input ICG video angiogram using an image registration method...
January 16, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28092535/super-resolution-person-re-identification-with-semi-coupled-low-rank-discriminant-dictionary-learning
#19
Xiao-Yuan Jing, Xiaoke Zhu, Fei Wu, Ruimin Hu, Xinge You, Yunhong Wang, Hui Feng, Jing-Yu Yang
Person re-identification has been widely studied due to its importance in surveillance and forensics applications. In practice, gallery images are high-resolution (HR) while probe images are usually low-resolution (LR) in the identification scenarios with large variation of illumination, weather or quality of cameras. Person re-identification in this kind of scenarios, which we call super-resolution (SR) person re-identification, has not been well studied. In this paper, we propose a semi-coupled low-rank discriminant dictionary learning (SLD2L) approach for SR person re-identification task...
January 10, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28092427/layer-dependence-and-light-tuning-surface-potential-of-2d-mos2-on-various-substrates
#20
Feng Li, Junjie Qi, Minxuan Xu, Jiankun Xiao, Yuliang Xu, Xiankun Zhang, Shuo Liu, Yue Zhang
Here surface potential of chemical vapor deposition (CVD) grown 2D MoS2 with various layers is reported, and the effect of adherent substrate and light illumination on surface potential of monolayer MoS2 are investigated. The surface potential of MoS2 on Si/SiO2 substrate decreases from 4.93 to 4.84 eV with the increase in the number of layer from 1 to 4 or more. Especially, the surface potentials of monolayer MoS2 are strongly dependent on its adherent substrate, which are determined to be 4.55, 4.88, 4.93, 5...
January 16, 2017: Small
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