keyword
MENU ▼
Read by QxMD icon Read
search

Retention

keyword
https://www.readbyqxmd.com/read/28231529/new-enantioselective-lc-method-development-and-validation-for-the-assay-of-modafinil
#1
Marianna Harvanová, Taťána Gondová
For the first time, a new, fast and sensitive chromatographic method for the separation and determination of modafinil enantiomers was developed on chiral stationary phase with macrocyclic glycopeptide teicoplanin in the polar organic mode. The effect of the mobile phase composition and column temperature on the retention and enantioseparation were studied. The separation was performed using a Chirobiotic T column (250×4.6mm, 5μm) with methanol and triethylamine (100/0.05, v/v) as the mobile phase at a flow rate of 1...
February 16, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28231480/feasibility-and-acceptability-of-post-hospitalization-ecological-momentary-assessment-in-patients-with-psychotic-spectrum-disorders
#2
Ethan Moitra, Brandon A Gaudiano, Carter H Davis, Dror Ben-Zeev
BACKGROUND: Up to 50% of patients with psychotic-spectrum disorders are medication nonadherent. The use of real-time assessment via ecological momentary assessment (EMA) on mobile devices might offer important insights into adherence behaviors that cannot be measured in the clinic. However, existing EMA studies have only studied acutely ill patients during hospitalization or more stable patients in the community. METHODS: Feasibility and acceptability of EMA in 65 patients with psychotic-spectrum disorders who were recently discharged from the hospital were assessed...
February 7, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28231477/effects-of-tdcs-on-motor-learning-and-memory-formation-a-consensus-and-critical-position-paper
#3
REVIEW
Ethan R Buch, Emiliano Santarnecchi, Andrea Antal, Jan Born, Pablo A Celnik, Joseph Classen, Christian Gerloff, Mark Hallett, Friedhelm C Hummel, Michael A Nitsche, Alvaro Pascual-Leone, Walter J Paulus, Janine Reis, Edwin M Robertson, John C Rothwell, Marco Sandrini, Heidi M Schambra, Eric M Wassermann, Ulf Ziemann, Leonardo G Cohen
Motor skills are required for activities of daily living. Transcranial direct current stimulation (tDCS) applied in association with motor skill learning has been investigated as a tool for enhancing training effects in health and disease. Here, we review the published literature investigating whether tDCS can facilitate the acquisition, retention or adaptation of motor skills. Work in multiple laboratories is underway to develop a mechanistic understanding of tDCS effects on different forms of learning and to optimize stimulation protocols...
January 29, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28231422/adiponitrile-litfsi-solution-as-alkylcarbonate-free-electrolyte-for-lto-nmc-li-ion-batteries
#4
Douaa Farhat, Fouad Ghamouss, Julia Maibach, Kristina Edström, Daniel Lemordant
Recently, dinitriles (NC(CH2)nCN) and especially adiponitrile (ADN, n=4) have attracted the attention as secure electrolyte solvents due to their chemical stability, high boiling points, high flash points and low vapor pressure. The good solvating properties of ADN toward lithium salts and its high electrochemical stability (~ 6V vs. Li/Li+) make it suitable for safer Li-ions cells without performances loss. In this study, ADN is used as a single electrolyte solvent with lithium bis(trimethylsulfonyl)imide (LiTFSI)...
February 23, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/28231344/evaluation-of-stress-distribution-on-implant-retained-auricular-prostheses-the-finite-element-method
#5
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/28231265/resist-diabetes-a-randomized-clinical-trial-for-resistance-training-maintenance-in-adults-with-prediabetes
#6
Brenda M Davy, Richard A Winett, Jyoti Savla, Elaina L Marinik, Mary Elizabeth Baugh, Kyle D Flack, Tanya M Halliday, Sarah A Kelleher, Sheila G Winett, David M Williams, Soheir Boshra
OBJECTIVE: To determine whether a social cognitive theory (SCT)-based intervention improves resistance training (RT) maintenance and strength, and reduces prediabetes prevalence. RESEARCH DESIGN AND METHODS: Sedentary, overweight/obese (BMI: 25-39.9 kg/m2) adults aged 50-69 (N = 170) with prediabetes participated in the 15-month trial. Participants completed a supervised 3-month RT (2×/wk) phase and were randomly assigned (N = 159) to one of two 6-month maintenance conditions: SCT or standard care...
2017: PloS One
https://www.readbyqxmd.com/read/28230966/increasing-peak-capacity-in-non-targeted-omics-applications-by-combining-full-scan-field-asymmetric-waveform-ion-mobility-spectrometry-with-liquid-chromatography-mass-spectrometry
#7
Kayleigh L Arthur, Matthew A Turner, James C Reynolds, Colin S Creaser
Full scan field asymmetric waveform ion mobility spectrometry (FAIMS) combined with liquid chromatography and mass spectrometry (LC-FAIMS-MS) is shown to enhance peak capacity for omics applications. A miniaturized FAIMS device capable of rapid compensation field scanning has been incorporated into an ultra-high performance liquid chromatography (UHPLC) and time-of-flight (TOF) mass spectrometry analysis, allowing the acquisition of full scan FAIMS and MS nested data sets within the timescale of a UHPLC peak...
February 23, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28230878/multifunctional-hybrid-porous-filters-with-hierarchical-structures-for-simultaneous-removal-of-indoor-vocs-dusts-and-microorganisms
#8
Yang Zhao, Ze-Xian Low, Shasha Feng, Zhaoxiang Zhong, Yong Wang, Zhong Yao
Air purification often requires multiple layers of filters with different functions to remove various air pollutants, which lead to high pressure drop, high air flow path and frequent filter replacement. In this work, a novel multifunctional Ag@MWCNTs/Al2O3 hybrid filter with a depth-type hierarchical structure for simultaneous removal of fine particles, microorganisms and VOCs was designed and fabricated. The novel hybrid air filter showed leading air purification performances to date, achieving 82.24% degradation of formaldehyde at room temperature, 99...
February 23, 2017: Nanoscale
https://www.readbyqxmd.com/read/28230566/the-effect-of-preoperative-phenazopyridine-on-urinary-retention-following-midurethral-sling
#9
Omar Felipe Dueñas-Garcia, Tania Sierra, Erica Nicasio, Katherine Leung, Cynthia D Hall, Michael K Flynn
OBJECTIVE: The aim of this study was to determine the effect of preoperative oral phenazopyridine on short-term voiding dysfunction in patients undergoing a retropubic midurethral sling. METHODS: We conducted a retrospective cohort study in subjects undergoing a retropubic midurethral sling comparing those who received preoperative oral phenazopyridine with those who did not. We included all women who underwent a retropubic midurethral sling without concomitant procedures under general anesthesia at our institution...
February 23, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28230426/making-retention-strategies-work
#10
Sam Foster
Sam Foster, Chief Nurse at Heart of England NHS Foundation Trust, discusses the retention of nurses and examines the evidence available that reveals the root of the problem and possible solutions.
February 23, 2017: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/28230377/tailoring-anisotropic-li-ion-transport-tunnels-on-orthogonally-arranged-li-rich-layered-oxide-nanoplates-towards-high-performance-li-ion-batteries
#11
Ming Xu, Linfeng Fei, Wei-Bing Zhang, Tao Li, Wei Lu, Nian Zhang, Yanqing Lai, Zhian Zhang, Jing Fang, Kai Zhang, Jie Li, Haitao Huang
High-performance Li-rich layered oxide (LRLO) cathode material is appealing for next-generation Li-ion batteries owing to its high specific capacity (>300 mAh g-1). Despite intense studies in past decade, the low initial Coulombic efficiency and unsatisfactory cycling stability of LRLO still remain great challenges for its practical application. Here, we report a rational design of the orthogonally arranged {010}-oriented LRLO nanoplates with built-in anisotropic Li+ ion transport tunnels. Such a novel structure enables fast Li+ ion intercalation and deintercalation kinetics and enhanced structure stability for LRLO...
February 23, 2017: Nano Letters
https://www.readbyqxmd.com/read/28230359/efficient-liver-targeting-by-polyvalent-display-of-a-compact-ligand-for-the-asialoglycoprotein-receptor
#12
Carlos A Sanhueza, Michael M Baksh, Benjamin Thuma, Marc D Roy, Sanjay Dutta, Cathy Préville, Boris A Chrunyk, Kevin Beaumont, Robert Dullea, Mark Ammirati, Shenping Liu, David Gebhard, James E Finley, Christopher T Salatto, Amanda King-Ahmad, Ingrid Stock, Karen Atkinson, Benjamin Reidich, Wen Lin, Rajesh Kumar, Meihua Tu, Elnaz Menhaji-Klotz, David A Price, Spiros Liras, M G Finn, Vincent Mascitti
A compact and stable bicyclic bridged ketal was developed as a ligand for the asialoglycoprotein receptor (ASGPR). This compound showed excellent ligand efficiency, and the molecular details of binding were revealed by the first X-ray crystal structures of ligand-bound ASGPR. This analogue was used to make potent di- and trivalent binders of ASGPR. Extensive characterization of the function of these compounds showed rapid ASGPR-dependent cellular uptake in vitro and high levels of liver/plasma selectivity in vivo...
February 23, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28230203/water-insoluble-photosensitizer-nanocolloids-stabilized-by-supramolecular-interfacial-assembly-towards-photodynamic-therapy
#13
Yamei Liu, Kai Ma, Tifeng Jiao, Ruirui Xing, Guizhi Shen, Xuehai Yan
Nanoengineering of hydrophobic photosensitizers (PSs) is a promising approach for improved tumor delivery and enhanced photodynamic therapy (PDT) efficiency. A variety of delivery carriers have been developed for tumor delivery of PSs through the enhanced permeation and retention (EPR) effect. However, a high-performance PS delivery system with minimum use of carrier materials with excellent biocompatibility is highly appreciated. In this work, we utilized the spatiotemporal interfacial adhesion and assembly of supramolecular coordination to achieve the nanoengineering of water-insoluble photosensitizer Chlorin e6 (Ce6)...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28230177/storage-of-passive-motion-pattern-in-hippocampal-ca1-region-depends-on-camkii-creb-signaling-pathway-in-a-motion-sickness-rodent-model
#14
Junqin Wang, Jiluo Liu, Leilei Pan, Ruirui Qi, Peng Liu, Wei Zhou, Yiling Cai
Sensory mismatch between actual motion information and anticipated sensory patterns (internal model) is the etiology of motion sickness (MS). Some evidence supports that hippocampus might involve the neural storage of the "internal model". This study established an "internal model" acquisition-retention behavioral model using a repeated habituation rotation training protocol. We tried to identify the hippocampal subregion involved in "internal model" retention using chemical lesion methods. Hippocampal kinases (CaMK, CaMKIV, CREB and ERK1/2) phosphorylation in the target subregion was assayed and the effects of kinase inhibitors (KN93 or U0126) on "internal model" retention were investigated...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28230097/evidence-for-risk-extrapolation-in-decision-making-by-tadpoles
#15
Adam L Crane, Maud C O Ferrari
Through time, the activity patterns, morphology, and development of both predators and prey change, which in turn alter the relative vulnerability of prey to their coexisting predators. Recognizing these changes can thus allow prey to make optimal decisions by projecting risk trends into the future. We used tadpoles (Lithobates sylvaticus) to test the hypothesis that tadpoles can extrapolate information about predation risk from past information. We exposed tadpoles to an odour that represented either a temporally consistent risk or an increasing risk...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28229807/using-psychoeducation-and-role-induction-to-improve-completion-rates-in-cognitive-behavioural-therapy
#16
Jaime Delgadillo, Martin Groom
BACKGROUND: Pre-treatment role induction interventions have been suggested to potentially enhance attendance and clinical outcomes in psychotherapy. AIMS: This study aimed to evaluate the effects of a programme of three transdiagnostic seminars (TDS) for patients with common mental disorders accessing cognitive behavioural therapy (CBT) in primary care. TDS included CBT psychoeducation and role induction. METHOD: A random sample of patients (n = 49) participated in TDS followed by CBT (TDS+CBT) and they were compared with matched controls (n = 49) accessing usual CBT...
March 2017: Behavioural and Cognitive Psychotherapy
https://www.readbyqxmd.com/read/28229488/ultrafast-highly-reversible-and-cycle-stable-lithium-storage-boosted-by-pseudocapacitance-in-sn-based-alloying-anodes
#17
Yinzhu Jiang, Yong Li, Peng Zhou, Zhenyun Lan, Yunhao Lu, Chen Wu, Mi Yan
Boosting power density is one of the primary challenges that current lithium ion batteries face. Alloying anodes that possess suitable potential windows stand at the forefront in pursuing ultrafast and highly reversible lithium storage to achieve high power/energy lithium ion batteries. Herein, ultrafast lithium storage in Sn-based nanocomposite anodes is demonstrated, which is boosted by pseudocapacitance benefitting from a high fraction of highly interconnected interfaces of Fe/Sn/Li2 O. By tailoring the voltage window in the range of 0...
February 23, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28229167/mutation-in-a-highly-conserved-glycine-residue-in-strand-5b-of-plasminogen-activator-inhibitor-1-causes-polymerisation
#18
Takayuki Iwaki, Kotomi Nagahashi, Katsuhiro Takano, Katsue Suzuki-Inoue, Naohiro Kanayama, Kazuo Umemura, Tetsumei Urano
Serpinopathy is characterised as abnormal accumulation of serine protease inhibitors (SERPINs) in cells and results in clinical symptoms owing to lack of SERPIN function or excessive accumulation of abnormal SERPIN. We recently identified a patient with functional deficiency of plasminogen activator inhibitor-1 (PAI-1), a member of the SERPIN superfamily. The patient exhibited life-threatening bleeding tendencies, which have also been observed in patients with a complete deficiency in PAI-1. Sequence analysis revealed a homozygous single-nucleotide substitution from guanine to cytosine at exon 9, which changed amino acid residue 397 from glycine to arginine (c...
February 23, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28229144/construction-of-leaf-like-cuo-cu2o-nanocomposites-on-copper-foam-for-high-performance-supercapacitors
#19
Dong He, Guanda Wang, Guolong Liu, Hui Suo, Chun Zhao
Leaf-like CuO-Cu2O nanosheets have been prepared on copper foam by a one-step simple anodization method, which can be used as an advanced binder-free supercapacitor electrode. The performance of the CuO-Cu2O/Cu foam electrode was optimized through controlling and restraining the current density and reaction time. The prepared electrode exhibits a very high specific capacitance (1.954 F cm(-2) at a scan rate of 2 mV s(-1)), excellent durability (120% retention after 5000 cycles), remarkable rate capability (91...
February 23, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28228742/sleep-dependent-consolidation-of-rewarded-behavior-is-diminished-in-children-with-attention-deficit-hyperactivity-disorder-and-a-comorbid-disorder-of-social-behavior
#20
Christian D Wiesner, Ina Molzow, Alexander Prehn-Kristensen, Lioba Baving
Children suffering from attention-deficit hyperactivity disorder (ADHD) often also display impaired learning and memory. Previous research has documented aberrant reward processing in ADHD as well as impaired sleep-dependent consolidation of declarative memory. We investigated whether sleep also fosters the consolidation of behavior learned by probabilistic reward and whether ADHD patients with a comorbid disorder of social behavior show deficits in this memory domain, too. A group of 17 ADHD patients with comorbid disorders of social behavior aged 8-12 years and healthy controls matched for age, IQ, and handedness took part in the experiment...
2017: Frontiers in Psychology
keyword
keyword
6972
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"