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https://www.readbyqxmd.com/read/28231699/optimization-of-ultrasonic-assisted-enzymatic-hydrolysis-conditions-for-the-production-of-antioxidant-hydrolysates-from-porcine-liver-by-using-response-surface-methodology
#1
Hui-Chuan Yu, Fa-Jui Tan
Objective: The objective of this study was to optimize ultrasonic-assisted enzymatic hydrolysis conditions, including enzyme-to-substrate (E/S) ratio, pH, and temperature, for producing porcine liver hydrolysates (PLHs) with the highest 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging activity by using response surface methodology (RSM). Methods: The study used RSM to determine the combination of hydrolysis parameters that maximized the antioxidant activity of our PLHs...
February 23, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28231464/different-modes-of-visual-integration-in-the-lateral-geniculate-nucleus-revealed-by-single-cell-initiated-transsynaptic-tracing
#2
Santiago B Rompani, Fiona E Müllner, Adrian Wanner, Chi Zhang, Chiara N Roth, Keisuke Yonehara, Botond Roska
The thalamus receives sensory input from different circuits in the periphery. How these sensory channels are integrated at the level of single thalamic cells is not well understood. We performed targeted single-cell-initiated transsynaptic tracing to label the retinal ganglion cells that provide input to individual principal cells in the mouse lateral geniculate nucleus (LGN). We identified three modes of sensory integration by single LGN cells. In the first, 1-5 ganglion cells of mostly the same type converged from one eye, indicating a relay mode...
February 22, 2017: Neuron
https://www.readbyqxmd.com/read/28231344/evaluation-of-stress-distribution-on-implant-retained-auricular-prostheses-the-finite-element-method
#3
Ahmed A Abbas, Peerapong Santiwong, Amornrat Wonglamsam, Theerathavaj Srithavaj, Teeranoot Chanthasopeephan
PURPOSE: The purpose of this study was to evaluate stress distribution around two craniofacial implants in an auricular prosthesis according to the removal forces. Three attachment combinations were used to evaluate the stress distribution under removal forces of 45 and 90 degrees. MATERIALS AND METHODS: Three attachment designs were examined: (1) a Hader bar with three clips; (2) a Hader bar with one clip and two extracoronal resilient attachments (ERAs); and (3) a Hader bar with one clip and two Locators...
February 23, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28230776/effects-and-side-effects-of-using-sorafenib-and-sunitinib-in-the-treatment-of-metastatic-renal-cell-carcinoma
#4
REVIEW
Caroline Randrup Hansen, Daniela Grimm, Johann Bauer, Markus Wehland, Nils E Magnusson
In recent years, targeted therapies have proven beneficial in terms of progression-free survival (PFS) and overall survival (OS) in the treatment of metastatic renal cell carcinoma (mRCC). The tyrosine kinase inhibitors (TKIs) sorafenib and sunitinib are included in international clinical guidelines as first-line and second-line therapy in mRCC. Hypertension is an adverse effect of these drugs and the degree of hypertension associates with the anti-tumour effect. Studies have compared newer targeted drugs to sorafenib and sunitinib in terms of PFS, OS, quality of life and safety profiles...
February 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28230648/cultured-human-epidermis-combined-with-meshed-skin-autografts-accelerates-epithelialization-and-granulation-tissue-formation-in-a-rat-model
#5
Michiharu Sakamoto, Naoki Morimoto, Masukazu Inoie, Miki Takahagi, Shuichi Ogino, Chizuru Jinno, Shigehiko Suzuki
INTRODUCTION: As the take rate of cultured epidermal autografts in burn wound treatment is variable, widely expanded meshed auto skin grafts are often used in combination with cultured epidermal autograft to increase the take rate and achieve definitive wound coverage. However, a long time (3-4 weeks) required to prepare a cultured epidermis sheet is a disadvantage. Allogeneic cultured epidermis can be prepared in advance and cryopreserved to be used in combination with auto meshed skin grafts for treating third-degree burns...
February 23, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28230257/a-general-framework-for-the-assessment-of-power-system-vulnerability-to-malicious-attacks
#6
R Piccinelli, G Sansavini, R Lucchetti, E Zio
The protection and safe operations of power systems heavily rely on the identification of the causes of damage and service disruption. This article presents a general framework for the assessment of power system vulnerability to malicious attacks. The concept of susceptibility to an attack is employed to quantitatively evaluate the degree of exposure of the system and its components to intentional offensive actions. A scenario with two agents having opposing objectives is proposed, i.e., a defender having multiple alternatives of protection strategies for system elements, and an attacker having multiple alternatives of attack strategies against different combinations of system elements...
February 23, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28227761/application-of-dti-connectivity-in-lateralization-of-mtle
#7
Mohammad R Nazem-Zadeh, Susan M Bowyer, John E Moran, Esmaeil Davoodi-Bojd, Andrew Zillgitt, Hassan Bagher-Ebadian, Fariborz Mahmoudi, Kost V Elisevich, Hamid Soltanian-Zadeh, Mohammad R Nazem-Zadeh, Susan M Bowyer, John E Moran, Esmaeil Davoodi-Bojd, Andrew Zillgitt, Hassan Bagher-Ebadian, Fariborz Mahmoudi, Kost V Elisevich, Hamid Soltanian-Zadeh, Susan M Bowyer, Hassan Bagher-Ebadian, Esmaeil Davoodi-Bojd, Andrew Zillgitt, Fariborz Mahmoudi, John E Moran, Hamid Soltanian-Zadeh, Kost V Elisevich, Mohammad R Nazem-Zadeh
Diffusion tensor imaging (DTI) is a noninvasive imaging method for measuring the diffusion properties of the underlying white matter tracts through which epileptiform activity is propagated. This study investigates the structural abnormalities quantified by DTI in mesial temporal lobe epilepsy (mTLE). Fiber tracts passing through 54 anatomical sites in 12 adult mTLE patients and 12 age- and gender-matched controls were identified using DTI tractography. DTI nodal degree (ND) and laterality index were then calculated...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227672/robot-assisted-microsurgical-forceps-with-haptic-feedback-for-transoral-laser-microsurgery
#8
Nikhil Deshpande, Manish Chauhan, Claudio Pacchierotti, Domenico Prattichizzo, Darwin G Caldwell, Leonardo S Mattos, Nikhil Deshpande, Manish Chauhan, Claudio Pacchierotti, Domenico Prattichizzo, Darwin G Caldwell, Leonardo S Mattos, Darwin G Caldwell, Leonardo S Mattos, Nikhil Deshpande, Domenico Prattichizzo, Manish Chauhan, Claudio Pacchierotti
In this paper, a novel, motorized, multi-degrees-of-freedom (DoF), microsurgical forceps tool is presented, which is based on a master-slave teleoperation architecture. The slave device is a 7-DoF manipulator with: (i) 6-DoF positioning and orientation, (ii) 1 open/close gripper DoF; and (iii) an integrated force/torque sensor for tissue grip-force measurement. The master device is a 7-DoF haptic interface which teleoperates the slave device, and provides haptic feedback in its gripper interface. The combination of the device and the surgeon interface replaces the manual, hand-held device providing easy-to-use and ergonomic tissue control, simplifying the surgical tasks...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227558/the-limb-movement-analysis-of-rehabilitation-exercises-using-wearable-inertial-sensors
#9
Bingquan Huang, Oonagh Giggins, Tahar Kechadi, Brian Caulfield, Bingquan Huang, Oonagh Giggins, Tahar Kechadi, Brian Caulfield, Bingquan Huang, Brian Caulfield, Oonagh Giggins, Tahar Kechadi
Due to no supervision of a therapist in home based exercise programs, inertial sensor based feedback systems which can accurately assess movement repetitions are urgently required. The synchronicity and the degrees of freedom both show that one movement might resemble another movement signal which is mixed in with another not precisely defined movement. Therefore, the data and feature selections are important for movement analysis. This paper explores the data and feature selection for the limb movement analysis of rehabilitation exercises...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226912/development-of-a-head-impact-monitoring-intelligent-mouthguard
#10
Daniel S Hedin, Paul L Gibson, Adam J Bartsch, Sergey Samorezov, Daniel S Hedin, Paul L Gibson, Adam J Bartsch, Sergey Samorezov, Adam J Bartsch, Paul L Gibson, Sergey Samorezov, Daniel S Hedin
The authors present the development and laboratory system-level testing of an impact monitoring "Intelligent Mouthguard" intended to help with identification of potentially concussive head impacts and cumulative head impact dosage. The goal of Intelligent Mouthguard is to provide an indicator of potential concussion risk, and help caregiver identify athletes needing sideline concussion protocol testing. Intelligent Mouthguard may also help identify individuals who are at higher risk based on historical dosage...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226571/cuff-less-ppg-based-continuous-blood-pressure-monitoring-a-smartphone-based-approach
#11
Aman Gaurav, Maram Maheedhar, Vijay N Tiwari, Rangavittal Narayanan, Aman Gaurav, Maram Maheedhar, Vijay N Tiwari, Rangavittal Narayanan, Maram Maheedhar, Rangavittal Narayanan, Vijay N Tiwari, Aman Gaurav
Cuff-less estimation of systolic (SBP) and diastolic (DBP) blood pressure is an efficient approach for non-invasive and continuous monitoring of an individual's vitals. Although pulse transit time (PTT) based approaches have been successful in estimating the systolic and diastolic blood pressures to a reasonable degree of accuracy, there is still scope for improvement in terms of accuracies. Moreover, PTT approach requires data from sensors placed at two different locations along with individual calibration of physiological parameters for deriving correct estimation of systolic and diastolic blood pressure (BP) and hence is not suitable for smartphone deployment...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226334/prescription-opioid-abuse-in-chronic-pain-an-updated-review-of-opioid-abuse-predictors-and-strategies-to-curb-opioid-abuse-part-2
#12
Alan D Kaye, Mark R Jones, Adam M Kaye, Juan G Ripoll, Donald E Jones, Vincent Galan, Burton D Beakley, Frank Calixto, Jamie L Bolden, Richard D Urman, Laxmaiah Manchikanti
Chronic pain and prescription opioid abuse are extremely prevalent in the United States and worldwide. The consequences of opioid misuse can be life-threatening with significant morbidity and mortality, exacting a heavy toll on patients, physicians, and society. The risk for misuse of prescribed opioids is much higher in patients with chronic pain, especially those with concurrent substance use and /or mental health disorders. Several reasons can account for the occurrence of opioid abuse and misuse, including self-medication, use for reward, compulsive use related to addiction, and diversion for profit...
February 2017: Pain Physician
https://www.readbyqxmd.com/read/28226281/removal-of-bromide-from-surface-waters-using-silver-impregnated-activated-carbon
#13
Chen Chen, Onur Guven Apul, Tanju Karanfil
The main objectives of this study were to develop an understanding of silver impregnated activated carbon (SIAC) preparation for enhanced bromide (Br(-)) removal from water, and to investigate the impact of aqueous background composition on the Br(-) removal. Several SIACs were produced using various combinations of oxidation and silver impregnation procedures and powdered activated carbons (ACs). Regardless of the preparation procedure, SIACs showed significantly Br(-) uptakes than the virgin ACs. The Br(-) removal efficiency was affected by (i) the background water composition (e...
January 9, 2017: Water Research
https://www.readbyqxmd.com/read/28225828/systematic-analysis-of-non-structural-protein-features-for-the-prediction-of-ptm-function-potential-by-artificial-neural-networks
#14
Henry M Dewhurst, Matthew P Torres
Post-translational modifications (PTMs) provide an extensible framework for regulation of protein behavior beyond the diversity represented within the genome alone. While the rate of identification of PTMs has rapidly increased in recent years, our knowledge of PTM functionality encompasses less than 5% of this data. We previously developed SAPH-ire (Structural Analysis of PTM Hotspots) for the prioritization of eukaryotic PTMs based on function potential of discrete modified alignment positions (MAPs) in a set of 8 protein families...
2017: PloS One
https://www.readbyqxmd.com/read/28225609/regulation-and-plasticity-of-catalysis-in-enzymes-insights-from-analysis-of-mechanochemical-coupling-in-myosin
#15
Xiya Lu, Victor Ovchinnikov, Darren Demapan, Daniel Roston, Qiang Cui
The mechanism of ATP hydrolysis in the myosin motor domain is analyzed using a combination of DFTB3/CHARMM simulations and enhanced sampling techniques. The motor domain is modeled in the pre-powerstroke state, in the post-rigor state, and a hybrid model based on the post-rigor state with a closed nucleotide-binding pocket. The ATP hydrolysis activity is found to depend on the positioning of nearby water molecules, and a network of polar residues facilitates proton transfer and charge redistribution during hydrolysis...
February 22, 2017: Biochemistry
https://www.readbyqxmd.com/read/28225591/high-mobility-gasb-nanostructures-cointegrated-with-inas-on-si
#16
Mattias Borg, Heinz Schmid, Johannes Gooth, Marta D Rossell, Davide Cutaia, Moritz Knoedler, Nicolas Bologna, Stephan Wirths, Kirsten E Moselund, Heike Riel
GaSb nanostructures integrated on Si substrates are of high interest for p-type transistors and mid-IR photodetectors. Here, we investigate the MOCVD growth and properties of GaSb nanostructures monolithically integrated onto silicon-on-insulator wafers using template-assisted selective epitaxy. A high degree of morphological control allows for GaSb nanostructures with critical dimensions down to 20 nm. Detailed investigation of growth parameters reveals that the GaSb growth rate is governed by the desorption processes of an Sb surface, and in turn is insensitive to changes in material transport efficiency...
February 22, 2017: ACS Nano
https://www.readbyqxmd.com/read/28225234/-renovascular-disease-in-children-a%C3%A2-rare-diagnosis-with-few-symptoms
#17
Hjørdis Thorsteinsdottir, Eric Dorenberg, Pål-Dag Line, Anna Bjerre
BACKGROUND To estimate the prevalence, symptoms, causes and treatment of renovascular disease in children, and also to assess the degree of secondary organ damage to the heart, kidneys and eyes (end organ damage).MATERIAL AND METHOD Retrospective review of data for all children (0 - 16 years) who were examined for resistant hypertension in the period 1998 - 2013 at Oslo University Hospital Rikshospitalet.RESULTS A total of 21 children/adolescents (median age 8.5 years, 11 girls) were assessed and treated for resistant hypertension in the study period...
February 2017: Tidsskrift for Den Norske Lægeforening: Tidsskrift for Praktisk Medicin, Ny Række
https://www.readbyqxmd.com/read/28224897/cellulose-pectin-composite-hydrogels-intermolecular-interactions-and-material-properties-depend-on-order-of-assembly
#18
Patricia Lopez-Sanchez, Marta Martinez-Sanz, Mauricio R Bonilla, Dongjie Wang, Elliot P Gilbert, Jason R Stokes, Michael J Gidley
Plant cell walls have a unique combination of strength and flexibility however, further investigations are required to understand how those properties arise from the assembly of the relevant biopolymers. Recent studies indicate that Ca(2+)-pectates can act as load-bearing components in cell walls. To investigate this proposed role of pectins, bioinspired wall models were synthesised based on bacterial cellulose containing pectin-calcium gels by varying the order of assembly of cellulose/pectin networks, pectin degree of methylesterification and calcium concentration...
April 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28222414/urinary-steroid-metabolites-in-a-case-of-florid-ectopic-cushing-s-syndrome-and-clinical-correlations
#19
Angelos Kyriacou, Karolina G Stepien, Basil Issa
A 51-year old woman was admitted with multiple cerebral, pulmonary and intra-abdominal abscesses. The combination of apparent immunosuppression, obesity, diabetes mellitus, hypertension, hypokalaemia, osteoporotic fractures and bilateral shoulder avascular necrosis led to a clinical diagnosis of Cushing's syndrome (CS). This was biochemically confirmed as follows: midnight serum cortisol 4275 nmol/L (60-250), non-suppressed overnight dexamethasone suppression test, raised salivary cortisol 716 nmol/L (5-46) and ACTH 639 ng/L (0-46)...
October 2016: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28220854/prime-factorization-using-quantum-annealing-and-computational-algebraic-geometry
#20
Raouf Dridi, Hedayat Alghassi
We investigate prime factorization from two perspectives: quantum annealing and computational algebraic geometry, specifically Gröbner bases. We present a novel autonomous algorithm which combines the two approaches and leads to the factorization of all bi-primes up to just over 200000, the largest number factored to date using a quantum processor. We also explain how Gröbner bases can be used to reduce the degree of Hamiltonians.
February 21, 2017: Scientific Reports
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