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https://www.readbyqxmd.com/read/28325006/a-simplified-state-space-model-of-biventricular-assist-device-cardiovascular-system-interaction
#1
Vivian C A Koh, Einly Lim, Boon Chiang Ng, Yong Kuen Ho, Nigel H Lovell
A simplified state-space model of biventricular assist device (BiVAD)-cardiovascular system (CVS) interaction is presented. The state-space equations includes a six-compartments CVS model incorporating the ventricles, the pulmonary and systemic circulations as well as the non-linear behavior of the valve flow, together with a left ventricular assist device (LVAD) and a right ventricular assist device (RVAD) component. The left and right pump speeds serve as the input variables for the state-space model. The model is simulated with three operational modes, i...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324806/social-networking-site-sns-use-by-adolescent-mothers-can-social-support-and-social-capital-be-enhanced-by-online-social-networks-a-structured-review-of-the-literature
#2
REVIEW
Samantha Nolan, Joyce Hendricks, Sally Ferguson, Amanda Towell
AIMS AND OBJECTIVES: to critically appraise the available literature and summarise the evidence relating to adolescent mothers' use of social networking sites in terms of any social support and social capital they may provide and to identify areas for future exploration. BACKGROUND: social networking sites have been demonstrated to provide social support to marginalised individuals and provide psycho-social benefits to members of such groups. Adolescent mothers are at risk of; social marginalisation; anxiety disorders and depressive symptoms; and poorer health and educational outcomes for their children...
March 7, 2017: Midwifery
https://www.readbyqxmd.com/read/28324712/comparison-of-gaseous-polycyclic-aromatic-hydrocarbon-metabolites-according-to-their-specificity-as-biomarkers-of-occupational-exposure-selection-of-2-hydroxyfluorene-and-2-hydroxyphenanthrene
#3
Damien Barbeau, Simon Lutier, Marie Marques, Renaud Persoons, Anne Maitre
Exposure to Polycyclic Aromatic Hydrocarbons (PAHs) occurs by respiratory, digestive and dermal absorption. Biomonitoring takes all pathways into account but sensitive and specific biomarkers are required. Different gaseous PAHs metabolites were used due to their abundance in the atmospheric mixtures but none of them were selected as better biomarker than the others. To identify the best candidates for assessing occupational airborne exposure, relation between atmospheric levels of Naphtalene, Fluorene and Phenanthrene and urinary metabolites concentrations was studied in a carbon electrode workers group...
March 6, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28324700/attachment-predicts-cortisol-response-and-closeness-in-dyadic-social-interaction
#4
Sarah Ketay, Lindsey A Beck
The present study examined how the interplay of partners' attachment styles influences cortisol response, actual closeness, and desired closeness during friendship initiation. Participants provided salivary cortisol samples at four timepoints throughout either a high or low closeness task that facilitated high or low levels of self-disclosure with a potential friend (i.e., another same-sex participant). Levels of actual closeness and desired closeness following the task were measured via inclusion of other in the self...
March 7, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28324390/evaluation-of-administered-dose-using-portal-images-in-craniospinal-irradiation-of-pediatric-patients
#5
Carina Marques Coelho, Raquel Calçada, Sofia Rodrigues, Juan Antonio Barragán, Ana Cravo Sá, Ana Paula Macedo, Maria de Fátima Monsanto
This study aimed to assess the administered dose based on portal imaging in craniospinal pediatric irradiation by evaluating cases in which portal images did or did not account for the total administered dose. We also intended to calculate the mean increase in total administered dose. Data were collected from General University Hospital Gregorio Marañón; we evaluated the total dose administered, total dose planned, number of portal images per treatment and corresponding monitor units of two different groups: one in which the dose from portal images is deducted from the total administered dose (D), and another in which it was not (N)...
March 21, 2017: Radiological Physics and Technology
https://www.readbyqxmd.com/read/28324284/nonoperative-management-or-watch-and-wait-for-rectal-cancer-with-complete-clinical-response-after-neoadjuvant-chemoradiotherapy-a-critical-appraisal
#6
Tarik Sammour, Brandee A Price, Kate J Krause, George J Chang
BACKGROUND: There is increasing interest in nonoperative management (NOM) for rectal cancer with complete clinical response (cCR) after neoadjuvant chemoradiation (nCRT). OBJECTIVE: The aim of this systematic review was to summarize the available data on NOM, with the intention of formulating standardized protocols on which to base future investigations. METHODS: A systematic review following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines was conducted...
March 21, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28324260/stroke-and-intracranial-hemorrhage-in-heartmate-ii-and-heartware-left-ventricular-assist-devices-a-systematic-review
#7
Sung M Cho, Nader Moazami, Jennifer A Frontera
BACKGROUND: Ischemic stroke and intracranial hemorrhage (ICH) following left ventricular assist device (LVAD) placement are major causes of morbidity. The incidence and mortality associated with these events stratified by device type have not been systematically explored. METHODS: A systematic review of PubMed was conducted from January 2007 through June 2016 for all English-language articles involving HeartMate II (HMII) and HeartWare LVAD patients. Ischemic stroke and/or ICH incidence (events per patient-year) and associated mortality rates were abstracted for each device type...
March 21, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28324226/tobacco-cessation-counseling-attitudes-and-practices-among-yemeni-dental-professionals
#8
Sadeq Ali Al-Maweri, Walid A Al-Soneidar, Amer AlMaqtari, Abdulrahman Hunaish, Ghadah Al-Sufyani, Esam Halboub
Tobacco use is a significant health problem in Yemen and worldwide. Dental practitioners can play a pivotal role in educating their patients on the risk of smoking and motivating them to quit. This study aimed to assess the attitudes towards and practices of tobacco cessation counseling (TCC) among Yemeni dental professionals and to evaluate whether such attitudes and practices are associated with gender, smoking status, and years since graduation. In this cross-sectional study, a self-administered questionnaire containing questions regarding the practice and attitudes towards TCC in dental clinic was used...
March 21, 2017: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/28324223/adverse-neonatal-and-maternal-outcome-following-vacuum-assisted-vaginal-delivery-does-indication-matter
#9
Lina Salman, Amir Aviram, Eyal Krispin, Arnon Wiznitzer, Rony Chen, Rinat Gabbay-Benziv
PURPOSE: To estimate the impact of indication for vacuum-assisted vaginal delivery on neonatal and maternal adverse outcome. METHODS: Retrospective analysis of women carrying singleton-term pregnancies undergoing vacuum-assisted vaginal delivery in a tertiary hospital (2007-2014). Cohort was stratified by indication: non-reassuring fetal heart rate or prolonged second stage. Primary outcome was adverse neonatal outcome and secondary outcome was maternal morbidity...
March 21, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28324164/novel-intraoperative-use-of-the-tensipresser-to-assess-factors-predictive-of-pancreatic-fistula-after-pancreaticoduodenectomy
#10
Manabu Mikamori, Kunihito Gotoh, Hidenori Takahashi, Hirofumi Akita, Akira Tomokuni, Shogo Kobayashi, Masayuki Ohue, Yoshiyuki Fujiwara, Masahiko Yano, Osamu Ishikawa, Masato Sakon
PURPOSES: Pancreatic fistula (PF) is a challenging complication of pancreaticoduodenectomy (PD). 'Soft pancreas' is reported as a risk factor for PF; however, palpation by the surgeon is not an objective method of evaluating pancreatic texture. We conducted this study to investigate whether a texture analyzer called a "Tensipresser" can be used to quantify pancreatic tissue hardness and predict the development of postoperative PF. METHODS: We assessed pancreatic texture in 85 patients who underwent PD...
March 21, 2017: Surgery Today
https://www.readbyqxmd.com/read/28324148/comparative-efficacy-and-tolerability-of-sarilumab-150-and-200%C3%A2-mg-in-patients-with-active-rheumatoid-arthritis-a%C3%A2-bayesian-network-meta-analysis-of-randomized-controlled-trials
#11
S-C Bae, Y H Lee
OBJECTIVE: This study aimed to assess the relative efficacy and tolerability of every other week (q2w) dosing of sarilumab 150 and 200 mg in patients with active rheumatoid arthritis (RA). METHODS: In this network meta-analysis, randomized controlled trials (RCTs) examining the efficacy and tolerability of sarilumab in patients with active RA were included. A Bayesian network meta-analysis was conducted to combine the direct and indirect evidence from the RCTs...
March 21, 2017: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/28323890/establishment-of-transient-gene-expression-systems-in-protoplasts-from-liriodendron-hybrid-mesophyll-cells
#12
Ailing Huo, Zhenyu Chen, Pengkai Wang, Liming Yang, Guangping Wang, Dandan Wang, Suchan Liao, Tielong Cheng, Jinhui Chen, Jisen Shi
Liriodendron is a genus of the magnolia family comprised of two flowering tree species that produce hardwoods of great ecological and economic value. However, only a limited amount of genetic research has been performed on the Liriodendron genus partly because transient or stable transgenic trees have been difficult to produce. In general, transient expression systems are indispensable for rapid, high-throughput screening and systematic characterization of gene functions at a low cost; therefore, development of such a system for Liriodendron would provide a necessary step forward for research on Magnoliaceae and other woody trees...
2017: PloS One
https://www.readbyqxmd.com/read/28323854/the-unfinished-health-agenda-neonatal-mortality-in-cambodia
#13
Rathmony Hong, Pauline Yongeun Ahn, Frank Wieringa, Tung Rathavy, Ludovic Gauthier, Rathavuth Hong, Arnaud Laillou, Judit Van Geystelen, Jacques Berger, Etienne Poirot
BACKGROUND: Reduction of neonatal and under-five mortality rates remains a primary target in the achievement of universal health goals, as evident in renewed investments of Sustainable Development Goals. Various studies attribute declines in mortality to the combined effects of improvements in health care practices and changes in socio-economic factors. Since the early nineties, Cambodia has managed to evolve from a country devastated by war to a nation soon to enter the group of middle income countries...
2017: PloS One
https://www.readbyqxmd.com/read/28323841/detection-of-crossed-cerebellar-diaschisis-in-hyperacute-ischemic-stroke-using-arterial-spin-labeled-mr-imaging
#14
Koung Mi Kang, Chul-Ho Sohn, Seung Hong Choi, Keun-Hwa Jung, Roh-Eul Yoo, Tae Jin Yun, Ji-Hoon Kim, Sun-Won Park
BACKGROUND AND PURPOSE: Arterial spin-labeling (ASL) was recently introduced as a noninvasive method to evaluate cerebral hemodynamics. The purposes of this study were to assess the ability of ASL imaging to detect crossed cerebellar diaschisis (CCD) in patients with their first unilateral supratentorial hyperacute stroke and to identify imaging or clinical factors significantly associated with CCD. MATERIALS AND METHODS: We reviewed 204 consecutive patients who underwent MRI less than 8 hours after the onset of stroke symptoms...
2017: PloS One
https://www.readbyqxmd.com/read/28323712/trends-in-inpatient-vertebroplasty-and-kyphoplasty-volume-in-the-united-states-2005-2011-assessing-the-impact-of-randomized-controlled-trials
#15
Benjamin P Rosenbaum, Varun R Kshettry, Michael L Kelly, Thomas E Mroz, Robert J Weil
STUDY DESIGN: Retrospective analysis of the Nationwide Inpatient Sample, 2005-2011. OBJECTIVE: To identify trends in procedural volume and rates in the time period surrounding publication of randomized controlled trials (RCTs) that examined the utility of vertebroplasty and kyphoplasty. SUMMARY OF BACKGROUND DATA: Vertebroplasty and kyphoplasty are frequently performed for vertebral compression fractures. Several RCTs have been published with conflicting outcomes regarding pain and quality of life compared with nonsurgical management and sham procedures...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28323603/how-medicine-may-save-the-life-of-us-immigration-policy-from-clinical-and-educational-encounters-to-ethical-public-policy
#16
Mark G Kuczewski
Medicine has a conceptual contribution to make to the immigration debate. Our nation has been unable to move forward with meaningful immigration reform because many citizens seem to assume that immigrants are in the United States to access benefits to which they are not entitled. In contrast, when medicine encounters undocumented immigrants in the health care or medical education setting, it is obvious that their contributions to our health care system are denied by exclusionary laws. When the system is amended to be inclusive, immigrants become contributors to the systems that they access...
March 1, 2017: AMA Journal of Ethics
https://www.readbyqxmd.com/read/28323588/virtual-reality-applications-for-stress-management-training-in-the-military
#17
Federica Pallavicini, Luca Argenton, Nicola Toniazzi, Luciana Aceti, Fabrizia Mantovani
INTRODUCTION: Stress Management Training programs are increasingly being adopted in the military field for resilience empowerment and primary stress prevention. In the last several years, advanced technologies (virtual reality in particular) have been integrated in order to develop more innovative and effective stress training programs for military personnel, including soldiers, pilots, and other aircrew professionals. This systematic review describes experimental studies that have been conducted in recent years to test the effectiveness of virtual reality-based Stress Management Training programs developed for military personnel...
December 1, 2016: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28323584/evidence-for-gz-adaptation-observed-with-wearable-biosensors-during-high-performance-jet-flight
#18
G Merrill Rice, Dallas Snider, Jeffrey L Moore, J Timothy Lavan, Rich Folga, Thomas B VanBrunt
INTRODUCTION: Few studies have evaluated physiological responses to high acceleration forces during actual flight and to our knowledge no normative data has been acquired by technologies such as wearable biosensors during high performance jet aircraft operations. METHODS: In-flight physiological data from an FDA cleared portable triaxial accelerometer and bio-sensor were observed from five active duty F-18 pilots of the Naval Flight Demonstration Squadron (Blue Angels)...
December 1, 2016: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28323538/relationships-between-a-dissociative-subtype-of-ptsd-and-clinical-characteristics-in-patients-with-substance-use-disorders
#19
Michaela Mergler, Martin Driessen, Ursula Havemann-Reinecke, Dirk Wedekind, Christel Lüdecke, Martin Ohlmeier, Claudia Chodzinski, Sybille Teunißen, Steffen Weirich, Detlef Schläfke, Walter Renner, Ingo Schäfer, Gertrud Koesters, Christian Dette, Olaf Reis, Elisabeth H Sylvester, Martin Hoppe, Markus Stuppe, Thomas Broese, Udo Schneider, Christina Pletke
The increasing support for a dissociative subtype of post-traumatic stress disorder (PTSD-D) has led to its inclusion in DSM-5. We examined relationships between PTSD-D and relevant variables in patients with substance use disorders (SUD). The sample comprised N = 459 patients with SUD. The International Diagnostic Checklist and the Posttraumatic Diagnostic Scale were used to diagnose PTSD. In addition, participants completed the Childhood Trauma Questionnaire and the Dissociative Experiences Scale. The course of SUD was assessed by means of the European Addiction Severity Index...
March 21, 2017: Journal of Psychoactive Drugs
https://www.readbyqxmd.com/read/28322724/valosin-containing-protein-vcp-p97-inhibitors-relieve-mitofusin-dependent-mitochondrial-defects-due-to-vcp-disease-mutants
#20
Ting Zhang, Prashant Mishra, Bruce Hay, David Chan, Ming Guo
Missense mutations of valosin-containing protein (VCP) cause an autosomal dominant disease known as inclusion body myopathy, Paget disease with frontotemporal dementia (IBMPFD) and other neurodegenerative disorders. The pathological mechanism of IBMPFD is not clear and there is no treatment. We show that endogenous VCP negatively regulates Mitofusin, which is required for outer mitochondrial membrane fusion. Because 90% of IBMPFD patients have myopathy, we generated an in vivo IBMPFD model in adult Drosophila muscle, which recapitulates disease pathologies...
March 21, 2017: ELife
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