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https://www.readbyqxmd.com/read/27911071/severe-brain-injury-in-massachusetts-assessing-the-continuum-of-care
#1
Laura Lorenz, Gabrielle Katz
Acquired brain injury (ABI) is a major public health problem in Massachusetts (Hackman et al, 2014) and includes traumatic brain injury (TBI), stroke, ABI-related infectious diseases, metabolic disorders affecting the central nervous system (brain and spinal cord), and brain tumor. Advances in emergency medical care and neurosurgery mean that more people are surviving severe traumatic brain injury (Trexler et al, 2014). Yet many patients with severe TBI in particular, are not receiving inpatient services after initial treatment (Hackman et al, 2014; CDC, 2014) or later that are known to be effective (Malec & Kean, 2015; Lewis & Horn, 2015; BI Commission, 2011; Kolakowsky-Hayner et al, 2000; Interviews)...
December 10, 2015: Issue Brief
https://www.readbyqxmd.com/read/27910486/a-high-spatio-temporal-resolution-optical-pyrometer-at-the-orion-laser-facility
#2
Emma Floyd, Edward T Gumbrell, Jim Fyrth, James D Luis, Jonathan W Skidmore, Siddharth Patankar, Samuel Giltrap, Roland Smith
A streaked pyrometer has been designed to measure the temperature of ≈100 μm diameter heated targets in the warm dense matter region. The diagnostic has picosecond time resolution. Spatial resolution is limited by the streak camera to 4 μm in one dimension; the imaging system has superior resolution of 1 μm. High light collection efficiency means that the diagnostic can transmit a measurable quantity of thermal emission at temperatures as low as 1 eV to the detector. This is achieved through the use of an f/1...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27909972/can-we-estimate-short-and-intermediate-term-survival-in-patients-undergoing-surgery-for-metastatic-bone-disease
#3
Jonathan A Forsberg, Rikard Wedin, Patrick J Boland, John H Healey
BACKGROUND: Objective means of estimating survival can be used to guide surgical decision-making and to risk-stratify patients for clinical trials. Although a free, online tool ( www.pathfx.org ) can estimate 3- and 12-month survival, recent work, including a survey of the Musculoskeletal Tumor Society, indicated that estimates at 1 and 6 months after surgery also would be helpful. Longer estimates help justify the need for more durable and expensive reconstructive options, and very short estimates could help identify those who will not survive 1 month and should not undergo surgery...
December 1, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27909918/review-in-vivo-optical-spectral-tissue-sensing-how-to-go-from-research-to-routine-clinical-application
#4
Lisanne L de Boer, Jarich W Spliethoff, Henricus J C M Sterenborg, Theo J M Ruers
Innovations in optical spectroscopy have helped the technology reach a point where performance previously seen only in laboratory settings can be translated and tested in real-world applications. In the field of oncology, spectral tissue sensing (STS) by means of optical spectroscopy is considered to have major potential for improving diagnostics and optimizing treatment outcome. The concept has been investigated for more than two decades and yet spectral tissue sensing is not commonly employed in routine medical practice...
December 2, 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27909787/test-retest-reliability-of-tibiofemoral-joint-space-width-measurements-made-using-a-low-dose-standing-ct-scanner
#5
Neil A Segal, John Bergin, Andrew Kern, Christian Findlay, Donald D Anderson
OBJECTIVE: To determine the test-retest reliability of knee joint space width (JSW) measurements made using standing CT (SCT) imaging. SUBJECTS AND METHODS: This prospective two-visit study included 50 knees from 30 subjects (66% female; mean ± SD age 58.2 ± 11.3 years; BMI 29.1 ± 5.6 kg/m(2); 38% KL grade 0-1). Tibiofemoral geometry was obtained from bilateral, approximately 20° fixed-flexed SCT images acquired at visits 2 weeks apart. For each compartment, the total joint area was defined as the area with a JSW <10 mm...
December 1, 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27909532/ajmaline-challenge-to-unmask-infrahisian-disease-in-patients-with-recurrent-and-unexplained-syncope-preserved-ejection-fraction-with-or-without-conduction-abnormalities-on-surface-ecg
#6
Francesco Pentimalli, Luca Bacino, Matteo Ghione, Giambattista Siri, Massimo Gazzarata, Paolo Bellotti
Background: Pharmacological challenge with class I antiarrhythmic drug is a recommended diagnostic test in patients with unexplained syncope only in the presence of bundle branch block, when non-invasive tests have failed to make the diagnosis. Its role in patients with minor or no conduction disturbances on 12-leads ECG has not been evaluated yet. It is also not clear which are the values of His-Ventricular interval to be considered diagnostic. We sought to evaluate the role of ajmaline challenge in unmasking the presence of an infrahisian disease in patients with recurrent and unexplained syncope, regardless of the existence of conduction disturbances on surface ECG...
August 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27909469/value-of-the-wearable-cardioverter-defibrillator-wcd-as-a-bridging-therapy-before-implantation-of-a-cardioverter-defibrillator-icd
#7
REVIEW
Priv- Doz, Dr Johannes Sperzel
Wearable cardioverter defibrillators (WCD), initially available in 2002, have recently experienced more routine use in many institutions as a means of preventing sudden cardiac death (SCD) prior to implantable cardioverter defibrillator (ICD) evaluation or implantation. WCD differ from ICD by their noninvasive nature, making them well suited for patient populations who have a chance for significant cardiac recovery (such as after an acute myocardial infarction). Despite their noninvasive nature, WCD treatment of sustained ventricular tachyarrhythmias is highly successful...
February 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27909132/myxofibrosarcoma-of-the-extremity-and-trunk-a-multidisciplinary-approach-leads-to-good-local-rates-of-local-control
#8
C G Ghazala, N R Agni, M Ragbir, P Dildey, D Lee, K S Rankin, T B Beckingsale, C H Gerrand
AIMS: Myxofibrosarcomas (MFSs) are malignant soft-tissue sarcomas characteristically presenting as painless slowly growing masses in the extremities. Locally infiltrative growth means that the risk of local recurrence is high. We reviewed our experience to make recommendations about resection strategies and the role of the multidisciplinary team in the management of these tumours. PATIENTS AND METHODS: Patients with a primary or recurrent MFS who were treated surgically in our unit between 1997 and 2012 were included in the study...
December 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27908955/measuring-family-satisfaction-with-care-delivered-in-the-intensive-care-unit
#9
Kathleen Clark, Kerry A Milner, Marlene Beck, Virginia Mason
BACKGROUND: In our competitive health care environment, measuring the experience of family members of patients in the intensive care unit to ensure that health care providers are meeting families' needs is critical. Surveys from Press Ganey and the Centers for Medicare and Medicaid Services are unable to capture families' satisfaction with care in this setting. OBJECTIVE: To implement a sustainable measure for family satisfaction in a 12-bed medical and surgical intensive care unit...
December 2016: Critical Care Nurse
https://www.readbyqxmd.com/read/27908849/physician-heal-thyself-luke-4-23
#10
EDITORIAL
Jamie Hacker Hughes, Amra Saleem Rao, Neelam Dosanjh, Esther Cohen-Tovée, Jeremy Clarke, Gita Bhutani
The performance culture of the health service means that the psychological well-being of staff is becoming paramount in maintaining the workforce and in sustaining psychological health and morale. A Charter for Psychological Staff Wellbeing and Resilience is introduced that puts the onus on us and on employers to make the necessary adjustments to their workplace cultures and encourage professionals - us - to break through the barrier of stigma.
December 2016: British Journal of Psychiatry: the Journal of Mental Science
https://www.readbyqxmd.com/read/27908422/toenail-mercury-and-dyslipidemia-interaction-with-selenium
#11
Kyong Park, Eunmin Seo
BACKGROUND: Although compelling evidences from in vivo and in vitro studies exist, limited studies have examined the association between chronic mercury exposure and dyslipidemia. Particularly, data are sparse regarding the influence of selenium on this association of mercury with dyslipidemia in humans. PURPOSE: The purpose of the current study was to examine the associations of toenail mercury with dyslipidemia and its components, and to examine whether selenium in toenails modifies these associations...
January 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/27908163/learning-based-3t-brain-mri-segmentation-with-guidance-from-7t-mri-labeling
#12
Minghui Deng, Renping Yu, Li Wang, Feng Shi, Pew-Thian Yap, Dinggang Shen
PURPOSE: Segmentation of brain magnetic resonance (MR) images into white matter (WM), gray matter (GM), and cerebrospinal fluid (CSF) is crucial for brain structural measurement and disease diagnosis. Learning-based segmentation methods depend largely on the availability of good training ground truth. However, the commonly used 3T MR images are of insufficient image quality and often exhibit poor intensity contrast between WM, GM, and CSF. Therefore, they are not ideal for providing good ground truth label data for training learning-based methods...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27908158/similarity-measurement-of-lung-masses-for-medical-image-retrieval-using-kernel-based-semisupervised-distance-metric
#13
Guohui Wei, He Ma, Wei Qian, Min Qiu
PURPOSE: To develop a new algorithm to measure the similarity between the query lung mass and reference lung mass data set for content-based medical image retrieval (CBMIR). METHODS: A lung mass data set including 746 mass regions of interest (ROIs) was assembled. Among them, 375 ROIs depicted malignant lesions and 371 depicted benign lesions. Each mass ROI is represented by a vector of 26 texture features. A kernel function was employed to map the original data in input space to a feature space...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27908136/polymer-extension-under-flow-some-statistical-properties-of-the-work-distribution-function
#14
Aishani Ghosal, Binny J Cherayil
In an extension of earlier studies from this group on the application of the Jarzynski equality to the determination of the elastic properties of a finitely extensible Rouse model of polymers under flow [A. Ghosal and B. J. Cherayil, J. Chem. Phys. 144, 214902 (2016)], we derive several new theoretical results in this paper on the nature of the distribution function P(w) that governs the long-time limit t>1 of the fluctuations in the work w performed by the polymer during flow-induced stretching. In particular, we show that an expression for the average of the nth power of the work, ⟨w(n)(t)⟩, can be obtained in closed form in this limit, making it possible to exactly calculate three important statistical measures of P(w): the mean μ, the skewness γ1, and the kurtosis γ2 (apart from the variance σ(2))...
November 28, 2016: Journal of Chemical Physics
https://www.readbyqxmd.com/read/27907997/control-of-oscillations-in-vibration-machines-start-up-and-passage-through-resonance
#15
A Fradkov, D Gorlatov, O Tomchina, D Tomchin
Control of oscillations in mechanical systems in the start-up and passage through resonance modes is studied. In both cases, the control algorithm is based on the speed-gradient method with energy-based goal functions. It is shown that for Hamiltonian 1-degree of freedom (DOF) systems, it is generically possible to move the system from any initial state to any final state by means of a controlling force of arbitrarily small intensity. Controlled passage through resonance is studied for a 5-DOF vibration machine taking friction into account...
November 2016: Chaos
https://www.readbyqxmd.com/read/27907941/frequency-selective-non-linear-blending-to-improve-image-quality-in-liver-ct
#16
M N Bongers, G Bier, C Kloth, C Schabel, J Fritz, K Nikolaou, M Horger
Purpose: To evaluate the effects of a new frequency selective non-linear blending (NLB) algorithm on the contrast resolution of liver CT with low intravascular concentration of iodine contrast. Materials and Methods: Our local ethics committee approved this retrospective study. The informed consent requirement was waived. CT exams of 25 patients (60 % female, mean age: 65 ± 16 years of age) with late phase CT scans of the liver were included as a model for poor intrahepatic vascular contrast enhancement...
December 2016: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/27907034/budget-impact-of-long-acting-insulin-analogues-the-case-in-brazil
#17
Fernanda O Laranjeira, Everton Nunes da Silva, Maurício G Pereira
BACKGROUND: Long-acting insulin analogues for type 1 diabetes (T1D) treatment have been available on the Brazilian market since 2002. However, the population cannot access the analogues through the public health system. OBJECTIVE: To estimate the incremental budget impact of long-acting insulin analogues coverage for T1D patients in the Brazilian public health system compared to NPH insulin. METHODS: We performed a budget impact analysis of a five-year period...
2016: PloS One
https://www.readbyqxmd.com/read/27907024/utility-evaluation-based-on-one-to-n-mapping-in-the-prisoner-s-dilemma-game-for-interdependent-networks
#18
Juan Wang, Wenwen Lu, Lina Liu, Li Li, Chengyi Xia
In the field of evolutionary game theory, network reciprocity has become an important means to promote the level of promotion within the population system. Recently, the interdependency provides a novel perspective to understand the widespread cooperation behavior in many real-world systems. In previous works, interdependency is often built from the direct or indirect connections between two networks through the one-to-one mapping mode. However, under many realistic scenarios, players may need much more information from many neighboring agents so as to make a more rational decision...
2016: PloS One
https://www.readbyqxmd.com/read/27906971/nullomers-and-high-order-nullomers-in-genomic-sequences
#19
Davide Vergni, Daniele Santoni
A nullomer is an oligomer that does not occur as a subsequence in a given DNA sequence, i.e. it is an absent word of that sequence. The importance of nullomers in several applications, from drug discovery to forensic practice, is now debated in the literature. Here, we investigated the nature of nullomers, whether their absence in genomes has just a statistical explanation or it is a peculiar feature of genomic sequences. We introduced an extension of the notion of nullomer, namely high order nullomers, which are nullomers whose mutated sequences are still nullomers...
2016: PloS One
https://www.readbyqxmd.com/read/27906810/a-comparative-analysis-of-goldmann-tonometry-correction
#20
Magdalena Asejczyk-Widlicka, Wieslaw Srodka, Barbara K Pierscionek
PURPOSE: The measurement of intraocular pressure (IOP) by Goldmann applanation tonometry (GAT) is based on assumptions about corneal parameters. To correct for variations in corneal curvature and thickness, a number of equations have been proposed. This study evaluates the in vivo accuracy of these equations from individuals with primary open-angle glaucoma and compared them with measurements taken using the Pascal dynamic contour tonometer (DCT), which makes no assumptions about the corneal geometry or biomechanics...
November 30, 2016: Journal of Glaucoma
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