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https://www.readbyqxmd.com/read/28226979/quantitative-assessment-of-arm-tremor-in-people-with-neurological-disorders
#1
Jeonghee Kim, Claire Parnell, Thomas Wichmann, Stephen P DeWeerth, Jeonghee Kim, Claire Parnell, Thomas Wichmann, Stephen P DeWeerth, Claire Parnell, Thomas Wichmann, Stephen P DeWeerth, Jeonghee Kim
Abnormal oscillatory movement (i.e. tremor) is usually evaluated with qualitative assessment by clinicians, and quantified with subjective scoring methods. These methods are often inaccurate. We utilized a quantitative and standardized task based on the Fitts' law to assess the performance of arm movement with tremor by controlling a gyration mouse on a computer. The experiment included the center-out tapping (COT) and rectangular track navigation (RTN) tasks. We report the results of a pilot study in which we collected the performance for healthy participants in whom tremor was simulated by imposing oscillatory movements to the arm with a vibration motor...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226251/effects-of-sulfate-on-heavy-metal-release-from-iron-corrosion-scales-in-drinking-water-distribution-system
#2
Huifang Sun, Baoyou Shi, Fan Yang, Dongsheng Wang
Trace heavy metals accumulated in iron corrosion scales within a drinking water distribution system (DWDS) could potentially be released to bulk water and consequently deteriorate the tap water quality. The objective of this study was to identify and evaluate the release of trace heavy metals in DWDS under changing source water conditions. Experimental pipe loops with different iron corrosion scales were set up to simulate the actual DWDS. The effects of sulfate levels on heavy metal release were systemically investigated...
February 13, 2017: Water Research
https://www.readbyqxmd.com/read/28225448/predicting-hcahps-scores-from-hospitals-social-media-pages-a-sentiment-analysis
#3
John W Huppertz, Peter Otto
BACKGROUND: Social media is an important communication channel that can help hospitals and consumers obtain feedback about quality of care. However, despite the potential value of insight from consumers who post comments about hospital care on social media, there has been little empirical research on the relationship between patients' anecdotal feedback and formal measures of patient experience. PURPOSE: The aim of the study was to test the association between informal feedback posted in the Reviews section of hospitals' Facebook pages and scores on two global items from the Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) survey, Overall Hospital Rating and Willingness to Recommend the Hospital...
February 22, 2017: Health Care Management Review
https://www.readbyqxmd.com/read/28225117/gold-nanoparticles-and-the-corresponding-filter-membrane-as-chemosensors-and-adsorbents-for-dual-signal-amplification-detection-and-fast-removal-of-mercury-ii
#4
Gaosong Chen, Jun Hai, Hao Wang, Weisheng Liu, Fengjuan Chen, Baodui Wang
Nowadays, the development of a multifunction system for the simultaneous multiple signal amplification detection and fast removal of Hg(2+) remains a major challenge. Herein, we for the first time used gold nanoparticles (Au NPs) and the corresponding filter membrane as chemosensors and adsorbents for dual signal amplification detection and fast removal of Hg(2+). Such a system was based on the formation of gold amalgam and a gold amalgam-based reaction between rhodamine B (RhB) and NaBH4 with fluorescence and colorimetric sensing functions...
February 22, 2017: Nanoscale
https://www.readbyqxmd.com/read/28225010/beta-phase-synchronization-in-the-frontal-temporal-cerebellar-network-during-auditory-to-motor-rhythm-learning
#5
Kouki Edagawa, Masahiro Kawasaki
Rhythm is an essential element of dancing and music. To investigate the neural mechanisms underlying how rhythm is learned, we recorded electroencephalographic (EEG) data during a rhythm-reproducing task that asked participants to memorize an auditory stimulus and reproduce it via tapping. Based on the behavioral results, we divided the participants into Learning and No-learning groups. EEG analysis showed that error-related negativity (ERN) in the Learning group was larger than in the No-learning group. Time-frequency analysis of the EEG data showed that the beta power in right and left temporal area at the late learning stage was smaller than at the early learning stage in the Learning group...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28223080/novel-process-combining-anaerobic-aerobic-digestion-and-ion-exchange-resin-for-full-recycling-of-cassava-stillage-in-ethanol-fermentation
#6
Xinchao Yang, Ke Wang, Huijun Wang, Jianhua Zhang, Zhonggui Mao
A novel cleaner ethanol production process has been developed. Thin stillage is treated initially by anaerobic digestion followed by aerobic digestion and then further treated by chloride anion exchange resin. This allows the fully-digested and resin-treated stillage to be completely recycled for use as process water in the next ethanol fermentation batch, which eliminates wastewater discharges and minimizes consumption of fresh water. The method was evaluated at the laboratory scale. Process parameters were very similar to those found using tap water...
February 17, 2017: Waste Management
https://www.readbyqxmd.com/read/28222631/analgesic-effects-of-ultrasound-guided-transverse-abdominis-plane-block-using-different-volumes-and-concentrations-of-local-analgesics-after-laparoscopic-cholecystectomy
#7
Ayça Sultan Şahin, Necmiye Ay, Nuri Alper Şahbaz, Mehlika Kocabaş Akay, Yavuz Demiraran, Abdurrahim Derbent
Objective To evaluate the effects of an ultrasound-guided transverse abdominis plane (US-TAP) block used for postoperative pain relief by comparing the efficacy of two different volumes/concentrations of the local anaesthetic bupivacaine in patients undergoing laparoscopic cholecystectomies. Methods This randomized study enrolled patients undergoing laparoscopic cholecystectomies. They were randomized to two groups: group A received a 20 ml US-TAP block (50 mg bupivacaine +10 ml saline solution) and group B received a 30 ml US-TAP block (50 mg bupivacaine + 20 ml saline solution)...
February 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28222504/bimanual-gesture-imitation-in-alzheimer-s-disease
#8
G Nter Sanin, Thomas Benke
BACKGROUND/OBJECTIVE: Unimanual gesture production or imitation has often been studied in Alzheimer's disease (AD) during apraxia testing. In the present study, it was hypothesized that bimanual motor tasks may be a sensitive method to detect impairments of motor cognition in AD due to increased demands on the cognitive system. METHODS: We investigated bimanual, meaningless gesture imitation in 45 AD outpatients, 38 subjects with mild cognitive impairment (MCI), and 50 normal controls (NC) attending a memory clinic...
February 7, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28221979/influence-of-transportation-conditions-and-postharvest-disinfection-treatments-on-microbiological-quality-of-fresh-market-tomatoes-cv-nemo-netta-in-a-south-african-supply-chain
#9
M S Sibomana, L W Ziena, S Schmidt, T S Workneh
Postharvest microbial spoilage due to suboptimal transportation and packaging conditions is a key concern for the South African tomato industry. This study investigated the influence of washing with tap water or aqueous disinfectant solutions (chlorinated and anolyte water) on the microbiological quality of tomatoes during storage after transportation in nonrefrigerated trucks along two supply routes when packaged in crates and boxes. Route 1 was 1,093 km from field to storage site, while route 2 was 1,057 km...
February 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28220278/rhodamine-diaminomaleonitrile-conjugate-as-a-novel-colorimetric-fluorescent-sensor-for-recognition-of-cd-2-ion
#10
Perumal Sakthivel, Karuppannan Sekar, Gandhi Sivaraman, Subramanian Singaravadivel
Rhodamine diaminomaleonitrile linked probe (RD-1) shows highly sensitive colorimetric and selective turn-on fluorescent response to Cd(2+) over other metal ions. The fluorescence intensity and absorbance of the probe RD-1 showed a good linearity, with very low detection limits of 18.5 nm. The probe RD-1 was preliminarily applied to the determination of Cd(2+) ion in water samples from river and tap water with satisfying results. The live cell image confocal microscopy, HeLa cell demonstrated that RD-1 had low cytotoxicity with good membrane permeable property is successfully applied to fluorescence microscopic imaging for the detection of Cd(2+) ions...
February 21, 2017: Journal of Fluorescence
https://www.readbyqxmd.com/read/28217868/an-anti-nicotinic-cognitive-challenge-model-using-mecamylamine-in-comparison-with-the-anti-muscarinic-cognitive-challenge-using-scopolamine
#11
A C Baakman, R Alvarez-Jimenez, R Rissmann, E S Klaassen, J Stevens, S C Goulooze, J Burger, E L Swart, J M A van Gerven, G J Groeneveld
INTRODUCTION: The muscarinic acetylcholine receptor antagonist scopolamine is often used for proof-of-pharmacology studies with pro-cognitive compounds. From a pharmacological point of view, it would seem more rational to use a nicotinic rather than a muscarinic anticholinergic challenge to prove pharmacology of a nicotinic acetylcholine receptor agonist. This study aims to characterize a nicotinic anticholinergic challenge model using mecamylamine and to compare it to the scopolamine model...
February 20, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28217069/can-ultrasound-guided-subcostal-transverse-abdominis-plane-block-be-used-as-sole-anesthetic-technique
#12
Pooja Bihani, Pradeep Bhatia, Swati Chhabra, Pradeepika Gangwar
Subcostal transverse abdominis plane (TAP) block anesthetizes area of the abdomen with cutaneous innervation of T6-T10 dermatomes. These abdominal field blocks become very advantageous when cardiac patient presents for noncardiac surgeries as sole anesthetic or as a part of multimodal anesthesia. A 58-year-male came for open surgical repair of subxiphoid incisional hernia developed post coronary artery bypass grafting (CABG). Echocardiography showed hypokinesia of left ventricle (LV) in the left anterior descending (LAD) artery territory, dilated LV, and ejection fraction of 30%, and coronary angiography after 6 months of CABG showed 70% stenosis of LAD...
January 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28217055/ultrasound-guided-transversus-abdominis-plane-block-what-are-the-benefits-of-adding-dexmedetomidine-to-ropivacaine
#13
Manjaree Mishra, Shashi Prakash Mishra, Somendra Pal Singh
BACKGROUND: Ultrasound-guided transversus abdominis plane (TAP) block has recently come up as a modality to take care of postoperative pain. It can somewhat avoid the use of intravenous opioid analgesics and hence to avoid its complications. We have performed a prospective, double-blinded, randomized study to assess the analgesic effect of adding dexmedetomidine to local ropivacaine on TAP block for patients undergoing lower abdominal surgeries. AIM: The aim is to assess whether addition of dexmedetomidine to ropivacaine may bring some improvements to the analgesic efficacy of TAP blocks in patients undergoing lower abdominal surgeries...
January 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28216087/neural-consequences-of-post-exertion-malaise-in-myalgic-encephalomyelitis-chronic-fatigue-syndrome
#14
Dane B Cook, Alan R Light, Kathleen C Light, Gordon Broderick, Morgan R Shields, Ryan J Dougherty, Jacob D Meyer, Stephanie VanRiper, Aaron J Stegner, Laura D Ellingson, Suzanne D Vernon
Post exertion malaise is one of the most debilitating aspects of Myalgic Encephalomyelitis/ Chronic Fatigue Syndrome, yet the neurobiological consequences are largely unexplored. The objective of the study was to determine the neural consequences of acute exercise using functional brain imaging. Fifteen female Myalgic Encephalomyelitis/Chronic Fatigue Syndrome patients and 15 healthy female controls completed 30 minutes of submaximal exercise (70% of peak heart rate) on a cycle ergometer. Symptom assessments (e...
February 16, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28215095/ph-dependence-of-photoinduced-electron-transfer-with-ru-tap-3-2
#15
Ludovic Troian-Gautier, Epiphanie Mugeniwabagara, Luca Fusaro, Cécile Moucheron, Andrée Kirsch-De Mesmaeker, Michel Luhmer
The quenching of the excited state of [Ru(TAP)3](2+) (TAP = 1,4,5,8-tetraazaphenanthrene) by guanosine-5'-monophosphate (GMP), N-acetyltyrosine (N-Ac-Tyr), and hydroquinone (H2Q) has been studied in aqueous solution over a wide range of pH values including, for the first time, strongly acidic media. This quenching by electron transfer was examined by steady-state (1)H photochemically induced dynamic nuclear polarization (photo-CIDNP) as well as by more conventional techniques, among which are pulsed laser-induced transient absorption and emission experiments...
February 20, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28213767/mountaintop-removal-coal-mining-and-emergent-cases-of-psychological-disorder-in-kentucky
#16
Will H Canu, John Paul Jameson, Ellen H Steele, Michael Denslow
Although mountaintop removal (MTR) coal extraction techniques have been employed in Appalachia for decades, relatively little research has examined its potential psychological impact on people living in close proximity to MTR activity. The current study taps the State Emergency Department Database (Healthcare Cost and Utilization Project, Kentucky State Emergency Department Database, 2008) to examine the relative risk for diagnoses of depressive, substance use, and anxiety disorders originating in areas with and without MTR activity...
February 17, 2017: Community Mental Health Journal
https://www.readbyqxmd.com/read/28213252/multi-pumping-flow-system-for-the-determination-of-boron-in-eye-drops-drinking-water-and-ocean-water
#17
Pablo González, Alexandra Sixto, Moisés Knochen
A novel automated method for the determination of boron based on the use of pulsed flows was developed and applied to the determination of this element in samples of tap water, ocean water and eye drops. The method was implemented by means of a multi-pumping system consisting of three solenoid micropumps and a photometric detector and exploits the reaction of azomethine-H in the presence of boron. The system runs under control of an open-source microcontroller. The main operational parameters were optimized...
May 1, 2017: Talanta
https://www.readbyqxmd.com/read/28213223/electrochemical-determination-of-arsenic-in-natural-waters-using-carbon-fiber-ultra-microelectrodes-modified-with-gold-nanoparticles
#18
Patricio Carrera, Patricio J Espinoza-Montero, Lenys Fernández, Hugo Romero, José Alvarado
We have developed an anodic stripping voltammetry method that employs carbon fiber ultra-microelectrodes modified with gold nanoparticles to determine arsenic in natural waters. Gold nanoparticles were potentiostatically deposited on carbon fiber ultra-microelectrodes at -0.90V (vs SCE) for a time of 15s, to form the carbon fiber ultra-microelectrodes modified with gold nanoparticles. Cyclic voltammetry, electrochemical impedance spectroscopy and scanning electron microscopy coupled to an X-ray microanalysis system were used to check and confirm the presence of gold nanoparticles on the carbon fiber ultra-microelectrodes...
May 1, 2017: Talanta
https://www.readbyqxmd.com/read/28213221/a-novel-fluorescent-aptasensor-for-ultrasensitive-detection-of-microcystin-lr-based-on-single-walled-carbon-nanotubes-and-dapoxyl
#19
Seyed Mohammad Taghdisi, Noor Mohammad Danesh, Mohammad Ramezani, Narjes Ghows, Seyed Ali Mousavi Shaegh, Khalil Abnous
To assure water safety and protect human health, precise and simple analytical approaches are highly desired to determine low concentrations of microcystin-leucine-arginine (MC-LR), a toxin, in both water and serum samples. Herein, a simple, rapid and accurate aptamer-based fluorescent sensor was used for selective recognition of MC-LR, based on single-walled carbon nanotubes (SWNTs) as immobilizers, dapoxyl as a fluorescent dye, DAP-10 as a specific aptamer for dapoxyl and unmodified MC-LR aptamer (Apt) as a sensing ligand...
May 1, 2017: Talanta
https://www.readbyqxmd.com/read/28213127/quantitation-of-lead-210-210-pb-using-lead-203-203-pb-as-a-massless-yield-tracer
#20
D May, A N Nelson, M K Schultz
Determination of Pb-210 ((210)Pb) in aqueous solution is a common radioanalytical challenge in environmental science. Widely used methods for undertaking these analyses (e.g., ASTM D7535) rely on the use of stable lead (Pb) as a yield tracer that takes into account losses of (210)Pb that inevitably occur during elemental/radiochemical separations of the procedures. Although effective, these methods introduce technical challenges that can be difficult to track and potentially introduce uncertainty that can be difficult to quantify...
February 14, 2017: Journal of Environmental Radioactivity
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