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https://www.readbyqxmd.com/read/28430213/high-peak-power-hybrid-mopa-laser-with-tunable-pulse-repetition-frequency-and-pulse-duration
#1
Mingming Nie, Qiang Liu, Encai Ji, Xuezhe Cao, Fu Xing, Mali Gong
In this paper, we demonstrated a hybrid master oscillator power amplifier (MOPA) laser with high peak power and widely tunable pulse repetition frequency (PRF) and pulse duration. The first-stage solid-state amplifier was carefully designed to keep good beam quality and supply high gain simultaneously. The maximum peak power of 760 kW was achieved with average power of 42 W, PRF of 50 kHz, pulse duration of 1.1 ns, and near-diffraction limited beam quality. The MOPA laser covers a broad tunable temporal range with 1-100 ns for pulse duration and 50 kHz-1 MHz for PRF...
April 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28429527/balancing-health-care-education-and-patient-care-in-the-uk-workplace-a-realist-synthesis
#2
Sarah Sholl, Rola Ajjawi, Helen Allbutt, Jane Butler, Divya Jindal-Snape, Jill Morrison, Charlotte Rees
CONTEXT: Patient care activity has recently increased without a proportionate rise in workforce numbers, impacting negatively on health care workplace learning. Health care professionals are prepared in part by spending time in clinical practice, and for medical staff this constitutes a contribution to service. Although stakeholders have identified the balance between health care professional education and patient care as a key priority for medical education research, there have been very few reviews to date on this important topic...
April 20, 2017: Medical Education
https://www.readbyqxmd.com/read/28422659/revisiting-co-saliency-detection-a-novel-approach-based-on-two-stage-multi-view-spectral-rotation-co-clustering
#3
Xiwen Yao, Junwei Han, Dingwen Zhang, Feiping Nie
With the goal of discovering the common and salient objects from the given image group, co-saliency detection has received tremendous research interest in recent years. However, as most of the existing co-saliency detection methods are performed based on the assumption that all the images in the given image group should contain co-salient objects in only one category, they can hardly be applied in practice, particularly for the large-scale image set obtained from the internet. To address this problem, this paper revisits the co-saliency detection task and advances its development into a new phase, where the problem setting is generalized to allow the image group to contain objects in arbitrary number of categories and the algorithms need to simultaneously detect multi-class co-salient objects from such complex data...
April 13, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28419146/household-crowding-as-a-potential-mediator-of-socioeconomic-determinants-of-tuberculosis-incidence-in-brazil
#4
Daniele Maria Pelissari, Fredi Alexander Diaz-Quijano
Although many studies have identified social conditions associated with tuberculosis, contextual and individual factors have rarely been analysed simultaneously. Consequently, we aimed to identify contextual and individual factors associated with tuberculosis incidence in general population in Brazil in 2010. We also assessed whether household crowding mediates the association between socioeconomic determinants and tuberculosis incidence. Individual data of tuberculosis cases were obtained from 5,565 municipalities in Brazil in 2010 (last year of national census), and merged with contextual variables...
2017: PloS One
https://www.readbyqxmd.com/read/28419036/emerging-u-s-national-trends-in-the-treatment-of-pediatric-supracondylar-humeral-fractures
#5
Joshua B Holt, Natalie A Glass, Nicholas A Bedard, Stuart L Weinstein, Apurva S Shah
BACKGROUND: Understanding national trends in the treatment of pediatric supracondylar humeral fractures will provide important insight into variations in regional treatment and identify areas for improving value and quality in care delivery in the U.S. METHODS: U.S. national trends in the treatment of supracondylar humeral fractures were evaluated through query of the Humana (2007 to 2014) and ING (2007 to 2011) administrative claims databases. Geographic variation and changes in surgical and transfer rates over time were further explored through the Nationwide Emergency Department Sample (NEDS) database (2006 to 2011)...
April 19, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28415025/unusual-combination-of-femoral-head-dislocation-associated-acetabular-fracture-with-multipart-femoral-fractures-case-report
#6
Erdal Uzun, Ali Eray Günay, İbrahim Karaman
INTRODUCTION: Traumatic hip dislocation associated with femur intertrocanteric fracture is a rare and severe injury and it frequently occurs following a high energy trauma, Associated acetabular fractures with this injury are even more rare and potentially cause devastating consequences including avascular necrosis of the femoral head and subsequent early secondary osteoarthritis of the hip joint. PRESENTATION OF CASE: In this case report, we present a 20year old polytraumatized patient with traumatic hip dislocation associated with ipsilateral acetabulum fracture and simultaneous fractures of the ipsilateral femur...
February 27, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28414086/deadbeats-or-losers-discretionary-male-parental-investment-can-make-females-less-choosy
#7
Frazer Meacham, Thomas Getty
Two of the most important reproductive decisions that animals face are how to choose mates and how to invest in offspring. In species where both males and females provide offspring care, these selection pressures will often be reciprocally intertwined: mate preferences may depend on parental investment patterns while parental investment patterns may depend on mate preferences. We describe and analyze a mathematical model of this interaction, in which females can choose amongst males who have high attractiveness or low attractiveness, while males can decide whether to provide offspring care...
April 13, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28413967/uncontrolled-hypertension-and-oncology-clinical-%C3%AE-ips
#8
Rigas G Kalaitzidis, Moses S Elisaf
Angiogenesis is fundamental for tumour development and progression. Thus, anti-angiogenic agents have been developed and are mainly vascular endothelial growth factor (VEGF) pathway inhibitors. However, these agents commonly exhibit cardiac and renal toxicity, proteinuria and hypertension (HT). In fact, with the use of anti-angiogenic agents a rapiddose-dependent increaseof blood pressure (BP) is observed. Thepossible mechanisms of VEGF inhibitors-induced HTinclude systemic endothelial dysfunction, renal impairment as well as vascular micro- and macroangiopathy...
April 14, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28412843/continuous-ecg-monitoring-in-patients-with-acute-coronary-syndrome-or-heart-failure-easi-versus-gold-standard
#9
Loreto Lancia, Andrea Toccaceli, Cristina Petrucci, Silvio Romano, Maria Penco
The purpose of the study was to compare the EASI system with the standard 12-lead surface electrocardiogram (ECG) for the accuracy in detecting the main electrocardiographic parameters (J point, PR, QT, and QRS) commonly monitored in patients with acute coronary syndromes or heart failure. In this observational comparative study, 253 patients who were consecutively admitted to the coronary care unit with acute coronary syndrome or heart failure were evaluated. In all patients, two complete 12-lead ECGs were acquired simultaneously...
April 1, 2017: Clinical Nursing Research
https://www.readbyqxmd.com/read/28412268/how-is-third-molar-status-associated-with-the-occurrence-of-mandibular-angle-and-condyle-fractures
#10
Shuai Xu, Jun-Jie Huang, Yu Xiong, Ying-Hui Tan
PURPOSE: Third molars (M3s) have been hypothesized to be associated with the risk of mandibular angle fracture and mandibular condylar fracture. The authors systematically estimated the relative risk (RR) of M3 status for the development of mandibular angle fracture and mandibular condylar fracture through a meta-analysis of cohort studies. MATERIALS AND METHODS: In this systematic review, the PubMed, EMBASE, and Cochrane Library databases were searched from inception to October 2016...
March 23, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28411808/validation-of-a-new-method-by-nano-liquid-chromatography-on-chip-tandem-mass-spectrometry-for-combined-quantitation-of-c3f-and-the-v65-vitronectin-fragment-as-biomarkers-of-diagnosis-and-severity-of-osteoarthritis
#11
Gaël Cobraiville, Marianne Fillet, Mohammed Sharif, Khadija Ourradi, Gwenaël Nys, Michel G Malaise, Dominique de Seny
Microfluidic liquid chromatography coupled to a nanoelectrospray source ion trap mass spectrometry was used for the absolute and simultaneous quantitation of C3f and the V65 vitronectin fragment in serum. The method was first carefully optimized and then validated in serum biological matrix. Stable isotopes for the two biomarkers of interest were used as stable isotope labeled peptide standards. A weighted 1/x(2) quadratic regression for C3f and a weighted 1/x quadratic regression for the V65 vitronectin peptide were selected for calibration curves...
July 1, 2017: Talanta
https://www.readbyqxmd.com/read/28411351/simultaneous-resection-for-synchronous-colorectal-liver-metastasis-the-new-standard-of-care
#12
Jonathan S Abelson, Fabrizio Michelassi, Tianyi Sun, Jialin Mao, Jeffrey Milsom, Benjamin Samstein, Art Sedrakyan, Heather L Yeo
BACKGROUND: Optimal surgical management for patients with synchronous colorectal cancer liver metastasis is controversial. We provide an analysis of surgical utilization and outcomes for patients presenting with synchronous colon and rectal cancer liver metastasis between simultaneous and staged approaches. METHODS: SPARCS database was used to follow patients undergoing surgery for colorectal cancer with liver metastases from 2005 to 2014. Using International Classification of Diseases, Ninth Revision codes, we identified patients undergoing staged and simultaneous resection...
April 14, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28410347/accuracy-of-zero-heat-flux-cutaneous-temperature-in-intensive-care-adults
#13
Claire Dahyot-Fizelier, Solène Lamarche, Thomas Kerforne, Thierry Bénard, Benoit Giraud, Rémy Bellier, Elsa Carise, Denis Frasca, Olivier Mimoz
OBJECTIVES: To compare accuracy of a continuous noninvasive cutaneous temperature using zero-heat-flux method to esophageal temperature and arterial temperature. DESIGN: Prospective study. SETTING: ICU and NeuroICU, University Hospital. PATIENTS: Fifty-two ICU patients over a 4-month period who required continuous temperature monitoring were included in the study, after informed consent. INTERVENTIONS: All patients had esophageal temperature probe and a noninvasive cutaneous device to monitor their core temperature continuously...
April 13, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28409627/simultaneous-atr-ftir-based-determination-of-malaria-parasitemia-glucose-and-urea-in-whole-blood-dried-onto-a-glass-slide
#14
Supti Roy, David Perez-Guaita, Dean W Andrew, Jack S Richards, Don McNaughton, Philip Heraud, Bayden R Wood
New diagnostic tools that can detect malaria parasites in conjunction with other diagnostic parameters are urgently required. In this study, Attenuated Total Reflection Fourier transform infrared (ATR-FTIR) spectroscopy in combination with Partial Least Square Discriminant Analysis (PLS-DA) and Partial Least Square Regression (PLS-R) have been applied as a point-of-care test for identifying malaria parasites, blood glucose and urea levels in whole blood samples from thick blood films on glass slides. The specificity for the PLS-DA was found to be 98 % for parasitemia levels >0...
April 14, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28409167/changes-in-daily-life-of-iranian-patients-with-implantable-cardioverter-defibrillator-a-qualitative-study
#15
Nilofar Pasyar, Farkhondeh Sharif, Mahnaz Rakhshan, Mohammad Hossein Nikoo, Elham Navab
BACKGROUND: Although Implantable Cardioverter Defibrillator (ICD) saves the life of patients with life-threatening ventricular dysrhythmias, it causes various challenges in their life span. Considering the increase in the number of ICD users, more knowledge is required regarding changes in the patients' life after device implantation. The aim of this study was description of changes in daily life of patients after ICD implantation. METHODS: This qualitative study was conducted through content analysis method...
April 2017: International Journal of Community Based Nursing and Midwifery
https://www.readbyqxmd.com/read/28404594/health-related-quality-of-life-of-patients-with-hypothalamic-pituitary-adrenal-axis-dysregulations-a-cohort-study
#16
Charlotte De Bucy, Laurence Guignat, Tanya Niati, Jerome Bertherat, Joel Coste
OBJECTIVE: Health-related quality of life (HrQoL) is increasingly considered to be an important outcome of care for hypothalamic-pituitary-adrenal (HPA) axis dysregulation. The objective of this study was to assess the influence of type of HPA axis dysregulation and cortisol status on HrQOL and its evolution with time and treatment. DESIGN: Prospective cohort study. METHODS: Between September 2007 and April 2014, HrQoL questionnaires were administered during routine management to all patients with HPA axis dysregulation hospitalized in a single department and this was repeated after 6- 12-, 24- and 36-month during standard follow-up...
April 12, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28403318/screening-for-symptoms-of-anxiety-and-depression-in-patients-admitted-to-a-university-hospital-with-acute-coronary-syndrome
#17
Carolina Casanova Meneghetti, Bruno Luiz Guidolin, Paulo Roberto Zimmermann, Ana Sfoggia
Objective: To investigate the prevalence of anxiety and depression in patients admitted for acute coronary syndrome to a university hospital and to examine associations with use of psychotropic drugs. Methods: Ninety-one patients who had had an acute coronary event were enrolled on this cross-sectional prevalence study. Characteristics of the study population and the prevalence rates of depression and anxiety in the sample were assessed using the Hospital São Lucas da Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) psychiatric consultation protocol, which includes clinical and sociodemographic data, and the Hospital Anxiety and Depression Scale (HADS)...
January 2017: Trends in Psychiatry and Psychotherapy
https://www.readbyqxmd.com/read/28402101/synergistically-enhanced-performance-of-ultrathin-nanostructured-silicon-solar-cells-embedded-in-plasmonically-assisted-multispectral-luminescent-waveguides
#18
Sung-Min Lee, Purnim Dhar, Huandong Chen, Angelo Montenegro, Lauren Liaw, Dongseok Kang, Boju Gai, Alexander V Benderskii, Jongseung Yoon
Ultrathin silicon solar cells fabricated by anisotropic wet chemical etching of single-crystalline wafer materials represent an attractive materials platform that could provide many advantages for realizing high-performance, low-cost photovoltaics. However, their intrinsically limited photovoltaic performance arising from insufficient absorption of low-energy photons demands careful design of light management to maximize the efficiency and preserve the cost-effectiveness of solar cells. Herein we present an integrated flexible solar module of ultrathin, nanostructured silicon solar cells capable of simultaneously exploiting spectral upconversion and downshifting in conjunction with multispectral luminescent waveguides and a nanostructured plasmonic reflector to compensate for their weak optical absorption and enhance their performance...
April 12, 2017: ACS Nano
https://www.readbyqxmd.com/read/28400658/complication-rate-during-multilevel-lumbar-fusion-in-patients-above-60-years
#19
Bijjawara Mahesh, Bidre Upendra, S Vijay, Gc Arun Kumar, Srinivas Reddy
BACKGROUND: Spine surgery in elderly with comorbidities is reported to have higher complication rates and increased cost. However, the surgical outcome is good irrespective of the complications. Hence, it is essential to identify the factors affecting the complication rates in such patients and the measures to reduce them. This retrospective observational study determines the perioperative complications, their incidence and the measures to reduce complications in the elderly with comorbidities, operated by instrumented multilevel lumbar fusion...
March 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28399575/evaluation-of-the-prevalence-of-burnout-and-psychological-morbidity-among-radiation-oncologist-members-of-the-kyoto-radiation-oncology-study-group-krosg
#20
Wambaka Ange Mampuya, Yukinori Matsuo, Akira Nakamura, Masahiro Hiraoka
This study aimed to evaluate the self-reported prevalence of burnout and psychological morbidity among radiation oncologists members of the Kyoto Radiation Oncology Study Group (KROSG) and to identify factors contributing to burnout. We mailed an anonymous survey to 125 radiation oncologists members of the KROSG. The survey included; the demographic data, the Maslach Burnout Inventory - Human Services Survey (MBI-HSS) and the 12-item General Health Questionnaire (GHQ-12). There were 87 responses out of 125 eligible respondents (69...
March 1, 2017: Journal of Radiation Research
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