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https://www.readbyqxmd.com/read/28918225/on-the-relationship-between-executive-functions-of-working-memory-and-components-derived-from-fluid-intelligence-measures
#1
Xuezhu Ren, Karl Schweizer, Tengfei Wang, Pei Chu, Qin Gong
The aim of the current study is to provide new insights into the relationship between executive functions and intelligence measures in considering the item-position effect observed in intelligence items. Raven's Advanced Progressive Matrices (APM) and Horn's LPS reasoning test were used to assess fluid intelligence which served as criterion in investigating the relationship between intelligence and executive functions. A battery of six experimental tasks measured the updating, shifting, and inhibition processes of executive functions...
September 14, 2017: Acta Psychologica
https://www.readbyqxmd.com/read/28918109/precision-based-guidelines-for-sub-maximal-normalisation-task-selection-for-trunk-extensor-emg
#2
Jennie A Jackson, Svend Erik Mathiassen, Jack P Callaghan, Patrick G Dempsey
AIM: The object of this study was to quantify the contribution of sub-maximal normalisation to the overall variance of exposure parameters describing erector spinae (ES) activity, and to provide guidelines for task selection which minimize methodological variance. METHODS: ES EMG was measured from three locations (T9, L1 and L5 levels) on fifteen men performing a manual materials handling task in the laboratory on three separate days. Four repeats of each of eleven sub-maximal normalisation tasks (eight static, three dynamic) were collected, work data were normalised to each task and repeat, and exposure parameters calculated...
July 20, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28917809/characterization-of-sodium-tripolyphosphate-and-sodium-citrate-dehydrate-residues-on-surfaces
#3
M Sadi Gurses, Can Erkey, Seda Kizilel, Alper Uzun
Sodium tripolyphosphate (STPP) and sodium citrate dihydrate (sodium citrate) are the most widely used components in detergent formulations. Here, we characterized these two components on glass surfaces to assess their possible exposures from white spots on dishwasher-washed dishes. Ultraviolet/visible near infrared spectroscopy (UV/Vis-NIR), Fourier transform infrared spectroscopy (FTIR) in the attenuated total reflectance mode (ATR-FTIR), Raman spectroscopy and laser ablation-inductively coupled plasma mass spectroscopy (LA-ICP-MS) were utilized to design calibration models for a range of STPP and sodium citrate concentrations 1-8% w/w) precipitated on glass surfaces...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28917217/post-operative-c-reactive-protein-profile-following-abdominal-wall-reconstruction-with-transversus-abdominis-posterior-components-separation
#4
A Pearce, L Thornton, P A Sutton, C J Walsh
INTRODUCTION: Abdominal wall reconstruction using posterior component separation with transversus abdominis release (AWTAR) produces a unique post-operative CRP profile, when compared to routine elective colorectal operations. Therefore, we aim to establish the normal post-operative C-reactive protein (poCRP) profile following AWRTAR and reduce the unnecessary invasive interventions in patients already at greater risk of septic complications. METHODS: A retrospective analysis of daily poCRP levels was performed both for patients who underwent uncomplicated AWRTAR (n=12), and a comparator group of uncomplicated open right hemicolectomies (RH) matched for age and sex (n=24)...
August 24, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28917203/cognitive-behavioral-correlates-of-proxy-reports-on-cognitive-capabilities-in-pediatric-patients-with-epilepsy
#5
Christoph Helmstaedter, Renata Vaz Pandolfo, Christian Hoppe, Juri-Alexander Witt
PURPOSE: To validate the Cognitive Problems in Children and Adolescents Questionnaire (KOPKIJ, German: Kognitive Probleme bei Kindern und Jugendlichen), a proxy report measure for recognizing cognitive problems in pediatric patients with epilepsy. METHODS: Anonymized data sets from 279 pediatric epilepsy patients were standardized in regard to the KOPKIJ results of 352 healthy children and adolescents. The KOPKIJ was related to objective routine neuropsychological assessment (NPY), and to two subjective measures, the Child Behavior Checklist questionnaire (CBCL), a proxy rating by the parents, and a questionnaire for self-perceived health-related quality of life in children and adolescents (KINDL)...
September 6, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28917048/imaging-of-selenium-by-laser-ablation-inductively-coupled-plasma-mass-spectrometry-la-icp-ms-in-2-d-electrophoresis-gels-and-biological-tissues
#6
Elisa Castañeda Santa Cruz, J Susanne Becker, J Sabine Becker, Alessandra Sussulini
Selenium and selenoproteins are important components of living organisms that play a role in different biological processes. Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) is a powerful analytical technique that has been employed to obtain distribution maps of selenium in biological tissues in a direct manner, as well as in selenoproteins, previously separated by their molecular masses and isoelectric points using two-dimensional polyacrylamide gel electrophoresis (2-D PAGE). In this chapter, we present the protocols to perform LA-ICP-MS imaging experiments, allowing the distribution visualization and determination of selenium and/or selenoproteins in biological systems...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28917047/detection-of-selenoproteins-by-laser-ablation-inductively-coupled-plasma-mass-spectrometry-la-icp-ms-in-immobilized-ph-gradient-ipg-strips
#7
Jordan Sonet, Sandra Mounicou, Laurent Chavatte
In contrast to other trace elements that are cofactors of enzymes and removed from proteins under denaturing conditions, Se is covalently bound to proteins when incorporated into selenoproteins, since it is a component of selenocysteine aminoacid. It implies that selenoproteins can undergo several biochemical separation methods in stringent and chaotropic conditions and still maintain the presence of selenium in the primary sequence. This feature has been used to develop a method for the detection of trace levels of human selenoproteins in cell extracts without the use of radioactive isotopes...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28917019/the-trend-toward-minimally-invasive-complex-abdominal-wall-reconstruction-is-it-worth-it
#8
Igor Belyansky, Adam S Weltz, Udai S Sibia, Justin J Turcotte, Haley Taylor, H Reza Zahiri, T Robert Turner, Adrian Park
BACKGROUND: Open abdominal wall reconstruction (AWR) was previously one of the only methods available to treat complex ventral hernias. We set out to identify the impact of laparoscopy and robotics on our AWR program by performing an economic analysis before and after the institution of minimally invasive AWR. METHODS: We retrospectively reviewed inpatient hospital costs and economic factors for a consecutive series of 104 AWR cases that utilized separation of components technique (57 open, 38 laparoscopic, 9 robotic)...
September 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28917016/predictors-of-outpatient-resource-utilization-following-ventral-and-incisional-hernia-repair
#9
Alex Wade, Margaret A Plymale, Daniel L Davenport, Sara E Johnson, Vashisht V Madabhushi, Erica Mastoroudis, Charlie Tancula, John Scott Roth
INTRODUCTION: Little is known about the predictors of increased ambulatory costs following open ventral and incisional hernia repair (VIHR); however, postoperative complications would be expected to be associated with an increased burden on outpatient resources. The purpose of this study is to evaluate the impact of perioperative factors on outpatient resource utilization following VIHR. METHODS: With IRB approval, the surgery scheduling system was queried to identify all cases of VIHR done at our institution over 3 years...
September 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28916174/evaluation-of-beat-to-beat-ventricular-repolarization-lability-from-standard-12-lead-ecg-during-acute-myocardial-ischemia
#10
Salah S Al-Zaiti, Mohammad Alrawashdeh, Christian Martin-Gill, Clifton Callaway, David Mortara, Jan Nemec
BACKGROUND: Acute myocardial ischemia is a common cause of ventricular arrhythmias, yet recent ECG methods predicting susceptibility to ventricular tachyarrhythmia have not been fully evaluated during spontaneous ischemia. We sought to evaluate the clinical utility of alternans and non-alternans components of repolarization variability from the standard 10-second 12-lead ECG signals to risk stratify patients with acute chest pain. METHODS: We enrolled consecutive, non-traumatic, chest pain patients transported through Emergency Medical Services (EMS) to three tertiary care hospitals with cardiac catheterization lab capabilities in Pittsburgh, PA...
August 10, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28915937/ultra-high-performance-supercritical-fluid-chromatography-mass-spectrometry-procedure-for-analysis-of-monosaccharides-from-plant-gum-binders
#11
Volodymyr Pauk, Tomáš Pluháček, Vladimír Havlíček, Karel Lemr
The ultra-high performance supercritical fluid chromatography-mass spectrometry (UHPSFC/MS) procedure for analysis of native monosaccharides was developed. Chromatographic conditions were investigated to separate a mixture of four hexoses, three pentoses, two deoxyhexoses and two uronic acids. Increasing water content in methanol modifier to 5% and formic acid to 4% improved peak shapes of neutral monosaccharides and allowed complete elution of highly polar uronic acids in a single run. An Acquity HSS C18SB column outperformed other three tested stationary phases (BEH (silica), BEH 2-ethylpyridine, CSH Fluoro-Phenyl) in terms of separation of isomers and analysis time (4...
October 9, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28915534/revealing-anti-inflammation-mechanism-of-water-extract-and-oil-of-forsythiae-fructus-on-carrageenan-induced-edema-rats-by-serum-metabolomics
#12
An Yuan, Lihong Gong, Lin Luo, Jue Dang, Xiaohong Gong, Mengjie Zhao, Yan Li, Yunxia Li, Cheng Peng
Forsythiae Fructus is an important Chinese medicine which shows a significant effect against inflammation. This study aimed to investigate the preventive anti-inflammation mechanism of Forsythiae Fructus by serum metabolomics strategy and compare the difference of the metabolism pathways between Forsythia extract and Forsythia oil in rat. Four groups (control group, model group, Forsythia extract group and Forsythia oil group) were orally administered 10mL/kg 0.5% Tween 80 solution, 10mL/kg 0.5% Tween 80 solution, 5g/kg Forsythia extract and 0...
September 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28915349/watery-saliva-secreted-by-the-grain-aphid-sitobion-avenae-stimulates-aphid-resistance-in-wheat
#13
Yong Zhang, Jia Fan, Frederic Francis, Julian Chen
Infestation with Sitobion avenae induces localized defense responses in wheat; in this study, the role of S. avenae watery saliva in resistance induction was examined by infiltrating aphid saliva into wheat leaves. After feeding S. avenae on an artificial diet for 48 h, we first collected watery saliva from them and then separated the salivary proteins using one-dimensional gel electrophoresis. Gene expression studies showed that infiltration of S. avenae watery saliva in wheat leaves induced strong salicylic acid-responsive defense but moderate jasmonic acid-dependent defense...
September 15, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28915000/ductile-glass-of-polyrotaxane-toughened-by-stretch-induced-intramolecular-phase-separation
#14
Kazuaki Kato, Kaito Nemoto, Koichi Mayumi, Hideaki Yokoyama, Kohzo Ito
A new class of ductile glasses is created from a thermoplastic polyrotaxane. The hard glass, which has a Young's modulus of 1 GPa, shows crazing, necking, and strain hardening with a total elongation of 330%. Stress concentration is prevented through a unique stretch-induced intramolecular phase separation of the cyclic components and the exposed backbone. In situ synchrotron X-ray scattering studies indicate that the backbone polymer chains slip through the cyclic components in the regions where the stress is concentrated...
September 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28914545/spin-multiplet-components-and-energy-splittings-by-multistate-density-functional-theory
#15
Adam Grofe, Xin Chen, Wenjian Liu, Jiali Gao
Kohn-Sham Density functional theory has been tremendously successful in chemistry and physics. Yet, it is unable to describe the energy degeneracy of spin-multiplet components with any approximate functional. This work features two contributions. (1) We present a multistate density functional theory (MSDFT) to represent spin-multiplet components and to determine multiplet energies. MSDFT is a hybrid approach, taking advantage of both wave function theory and density functional theory. Thus, the wave functions, electron densities and energies for ground and excited states and for different components are treated on the same footing...
September 15, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28914152/half-a-gift-is-not-half-hearted-a-giver-receiver-asymmetry-in-the-thoughtfulness-of-partial-gifts
#16
Daniella Kupor, Frank Flynn, Michael I Norton
Four studies document an asymmetry in givers' and receivers' evaluations of gifts: Givers underestimate the extent to which receivers perceive partial (but more desirable) gifts to be thoughtful, valuable, and worthy of appreciation. Study 1 documents this asymmetry and suggests that givers underestimate the extent to which partial gifts signal thoughtfulness to receivers. Study 2 replicates this asymmetry in the context of a real gift exchange among friends. Study 3 shows that this asymmetry arises because givers believe that purchasing partial gifts is a greater violation of gift-giving norms than do receivers, leading givers to expect that partial gifts will damage receivers' perceptions of a gift's value...
September 1, 2017: Personality & Social Psychology Bulletin
https://www.readbyqxmd.com/read/28912763/the-microbial-community-dynamics-during-the-vitex-honey-ripening-process-in-the-honeycomb
#17
Yaqin Wen, Lin Wang, Yue Jin, Jinzhen Zhang, Lei Su, Xiaoling Zhang, Jinhui Zhou, Yi Li
The bacterial and fungal communities of vitex honey were surveyed by sequencing the 16S rRNA gene and the internal transcribed spacer region of ribosomal DNA. Vitex honey samples were analyzed at different stage of ripening; the vitex flower was also analyzed, and the effect of the chemical composition in the experimental setup was assessed. The results confirmed the presence of dominant Bacillus spp. as the dominant bacterial in honey, and yeast related genera was the main fungal in the honey, respectively...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28912158/visual-responses-in-fef-unlike-v1-primarily-reflect-when-the-visual-context-renders-a-receptive-field-salient
#18
Wilsaan M Joiner, James Cavanaugh, Robert H Wurtz, Bruce G Cumming
When light falls within a neuronal visual receptive field (RF) the resulting activity is referred to as the visual response. Recent work suggests this activity is in response to both the visual stimulation and the abrupt appearance, or salience, of the presentation. Here we present a novel method for distinguishing the two, based on the timing of random and non-random presentations. We examined these contributions in frontal eye field (FEF, N = 51) and as a comparison, an early stage in the primary visual cortex (V1, N = 15) of male monkeys (Macaca mulatta)...
September 14, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28911794/response-of-extracellular-polymeric-substances-to-thermal-treatment-in-sludge-dewatering-process
#19
Long-Fei Wang, Chen Qian, Jian-Kai Jiang, Xiao-Dong Ye, Han-Qing Yu
Sludge dewatering is an important process in municipal wastewater treatment and critically influences the subsequent transportation and disposal. Thermal treatment coupled with other chemical processes has been widely used to improve sludge dewaterability. However, information about the response of sludge extracellular polymeric substances (EPS) to thermal treatment and its role in sludge dewatering is still limited. In this work, the effects of thermal treatment on anaerobic and aerobic sludges were investigated with an emphasis on the colloid properties of released EPS in sludge dewatering process...
September 11, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28911686/development-of-validated-high-performance-thin-layer-chromatography-for-quantification-of-aristolochic-acid-in-different-species-of-the-aristolochiaceae-family
#20
Poonam Agrawal, Kirti Laddha
This study was undertaken to isolate and quantify aristolochic acid in Aristolochia indica stem and Apama siliquosa root. Aristolochic acid is an important biomarker component present in the Aristolochiaceae family. The isolation method involved simple solvent extraction, precipitation and further purification, using recrystallization. The structure of the compound was confirmed using infrared spectroscopy, mass spectrometry and nuclear magnetic resonance. A specific and rapid high-performance thin layer chromatography (HPTLC) method was developed for analysis of aristolochic acid...
April 2017: Journal of Food and Drug Analysis
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