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https://www.readbyqxmd.com/read/28647236/hydrolysis-of-polyaluminum-chloride-prior-to-coagulation-effects-on-coagulation-behavior-and-implications-for-improving-coagulation-performance
#1
Zhongguo Zhang, Jun Wang, Dan Liu, Jiuyi Li, Xiaolin Wang, Boyu Song, Bing Yue, Kehui Zhao, Yun Song
The effects of polyaluminum chloride (PACl) hydrolysis prior to coagulation on both the coagulation zone and coagulation performance of a kaolin suspension were investigated by a novel jar test named the "reversed coagulation test". The tests showed that PACl hydrolysis prior to coagulation decreased the performance of charge neutralization coagulation in the case of short-time slow mixing (10min; G=15sec(-1)) and increased the optimal dosage for charge neutralization and sweep coagulation. Moreover, the hydrolysis time had insignificant effects on the size and zeta potential of PACl precipitates and the residual turbidity of the raw water...
July 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28646561/pathways-to-arithmetic-fact-retrieval-and-percentage-calculation-in-adolescents
#2
Ulf Träff, Kenny Skagerlund, Linda Olsson, Rickard Östergren
BACKGROUND: Developing sufficient mathematical skills is a prerequisite to function adequately in society today. Given this, an important task is to increase our understanding regarding the cognitive mechanisms underlying young people's acquisition of early number skills and formal mathematical knowledge. AIMS: The purpose was to examine whether the pathways to mathematics model provides a valid account of the cognitive mechanisms underlying symbolic-number processing and mathematics in adolescents...
June 23, 2017: British Journal of Educational Psychology
https://www.readbyqxmd.com/read/28644680/exploring-the-factor-structure-of-the-social-cognition-and-object-relations-global-rating-method-support-for-two-and-three-factor-models
#3
Caleb J Siefert, Michelle Stein, Jenelle Slavin-Mulford, Greg Haggerty, Samuel J Sinclair, Danielle Funke, Mark A Blais
The Social Cognition and Object Relations Scales-Global Rating Method (SCORS-G) contains 8 scales for coding narrative content. This study explores the factor structure of this measure using college (n = 171), outpatient (n = 239), and inpatient (n = 78) samples. Participants told stories to the Thematic Apperception Test (TAT; Murray, 1943) cards. Stories were transcribed and coded by blind raters using the SCORS-G. Cases were randomly assigned to an exploratory or validation group. Exploratory factor analysis with the exploratory group suggested 2- and 3-factor models...
June 23, 2017: Journal of Personality Assessment
https://www.readbyqxmd.com/read/28644641/emergent-weyl-fermion-excitations-in-tap-explored-by-181-ta-quadrupole-resonance
#4
H Yasuoka, T Kubo, Y Kishimoto, D Kasinathan, M Schmidt, B Yan, Y Zhang, H Tou, C Felser, A P Mackenzie, M Baenitz
The ^{181}Ta quadrupole resonance [nuclear quadrupole resonance (NQR)] technique is utilized to investigate the microscopic magnetic properties of the Weyl semimetal TaP. We find three zero-field NQR signals associated with the transition between the quadrupole split levels for Ta with I=7/2 nuclear spin. A quadrupole coupling constant, ν_{Q}=19.250  MHz, and an asymmetric parameter of the electric field gradient, η=0.423, are extracted, in good agreement with band structure calculations. In order to examine the magnetic excitations, the temperature dependence of the spin-lattice relaxation rate (1/T_{1}T) is measured for the f_{2} line (±5/2↔±3/2 transition)...
June 9, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28644177/a-case-of-intravesical-bacillus-calmette-guerin-related-endophthalmitis-and-retinitis-confirmed-with-retinal-biopsy
#5
Alison Huggins, Murtaza Adam, David Ehmann, Ralph C Eagle, Barry Malloy, Sunir J Garg
PURPOSE: To present a rare case of bilateral endogenous chorioretinitis and unilateral endophthalmitis due to Mycobacterium bovis in a patient who received intravesical bacillus Calmette-Guerin (BCG) treatment. METHODS: We present a case of a single male patient with bilateral endogenous chorioretinitis due to Mycobacterium bovis in a patient who received intravesical BCG, an attenuated strain of M. bovis widely used to treat superficial bladder cancer. The patient underwent intravitreal tap, vitrectomy, and chorioretinal biopsy with histologic examination...
June 20, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28644076/a-novel-surgical-approach-to-avian-femorotibiotarsal-luxation-repair
#6
Anna E McRee, Thomas N Tully, Javier G Nevarez, Julia Sumner, Anderson Favero da Cunha
A 3-month-old male umbrella cockatoo (Cacatua alba) was presented because of acute non-weight-bearing lameness of the right leg. Marked soft tissue swelling was present around the femorotibiotarsal (stifle) joint, and the radiographic diagnosis was right medial femorotibiotarsal subluxation. Surgical management was elected, and the stifle joint was approached via a lateral parapatellar incision. Joint exploration revealed damage to the lateral meniscus, tendon of origin of the cranial tibial muscle, and cranial cruciate ligament...
June 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28643890/anatomical-evaluation-of-the-thoracolumbar-nerves-related-to-the-transversus-abdominis-plane-block-technique-in-the-dog
#7
F E Castañeda-Herrera, E F Buriticá-Gaviria, D F Echeverry-Bonilla
Transversus abdominis plane (TAP) is a fascial plane containing the thoracolumbar nerve branches that innervate the abdominal wall. Limited information is available on the anatomical organization of these nerve branches in the dog, which is of great importance for the success of the TAP block anaesthetic technique. The aim of this study was to describe the origin and conformation of thoracolumbar nerves running through the TAP in 20 hemi-abdominal walls of 10 adult mongrel dog cadavers with an average body weight of 12...
June 23, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28643868/the-potassium-battery-a-mobile-energy-source-for-transport-processes-in-plant-vascular-tissues
#8
REVIEW
Ingo Dreyer, Judith Lucia Gomez-Porras, Janin Riedelsberger
Contents I. II. III. IV. V. VI. VII. VIII. References SUMMARY: Plant roots absorb potassium ions from the soil and transport them in the xylem via the transpiration stream to the shoots. There, in source tissues where sufficient chemical energy (ATP) is available, K(+) is loaded into the phloem and then transported with the phloem stream to other parts of the plant; in part, transport is also back to the roots. This, at first sight, futile cycling of K(+) has been uncovered to be part of a sophisticated mechanism that (1) enables the shoot to communicate its nutrient demand to the root, (2) contributes to the K(+) nutrition of transport phloem tissues and (3) transports energy stored in the K(+) gradient between phloem cytosol and the apoplast...
June 23, 2017: New Phytologist
https://www.readbyqxmd.com/read/28642069/chronic-choline-supplementation-improves-cognitive-and-motor-performance-via-modulating-oxidative-and-neurochemical-status-in-rats
#9
Saiqa Tabassum, Saida Haider, Saara Ahmad, Syeda Madiha, Tahira Parveen
Choline, an essential nutrient, accounts for multiple functions in the body and brain. While its beneficial effects on healthy adults are not clear, choline supplementation is important during pregnancy for brain development, in elderly patients for support of cognitive performance and in patients with neurological disorders to reduce memory deficits. Thus, the aim of this study is to investigate whether choline administration in healthy adult rats beneficially impacts cognitive and locomotor performance, and associated oxidative and neurochemical outcomes...
June 19, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28640959/the-deeper-self-an-expanded-view-of-consciousness
#10
Steve Paulson, Siri Hustvedt, Mark Solms, Sonu Shamdasani
As science continues to explore the mysteries of the unconscious, two critical questions remain. First, can unconscious impulses, desires, and feelings be willfully raised to the level of the conscious self?, and, if so, would the unveiling of unconscious mechanisms lead to genuine self-knowledge or empowerment? Second, can we methodically tap into the unconscious to gear ourselves along more creative lines? If the unconscious is a source of intuitive and creative inspiration, how might a more expansive understanding of consciousness help us to flourish? How can we harness the intuitive parts of ourselves to think "outside the box," transcending the limitations of preconceived categories? And along those same lines, how would an expanded view of the unconscious frame our spiritual experiences or offer spiritual nourishment? Writer Siri Hustvedt, historian of psychology Sonu Shamdasani, and neuropsychologist Mark Solms will tackle everything from noetic experiences and the role of intuition to the phenomenon of peak experience and Jung's "collective unconscious...
June 22, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28640202/evaluation-of-legionella-air-contamination-in-healthcare-facilities-by-different-sampling-methods-an-italian-multicenter-study
#11
Maria Teresa Montagna, Osvalda De Giglio, Maria Luisa Cristina, Christian Napoli, Claudia Pacifico, Antonella Agodi, Tatjana Baldovin, Beatrice Casini, Maria Anna Coniglio, Marcello Mario D'Errico, Santi Antonino Delia, Maria Grazia Deriu, Marco Guida, Pasqualina Laganà, Giorgio Liguori, Matteo Moro, Ida Mura, Francesca Pennino, Gaetano Privitera, Vincenzo Romano Spica, Silvia Sembeni, Anna Maria Spagnolo, Stefano Tardivo, Ida Torre, Federica Valeriani, Roberto Albertini, Cesira Pasquarella
Healthcare facilities (HF) represent an at-risk environment for legionellosis transmission occurring after inhalation of contaminated aerosols. In general, the control of water is preferred to that of air because, to date, there are no standardized sampling protocols. Legionella air contamination was investigated in the bathrooms of 11 HF by active sampling (Surface Air System and Coriolis(®)μ) and passive sampling using settling plates. During the 8-hour sampling, hot tap water was sampled three times. All air samples were evaluated using culture-based methods, whereas liquid samples collected using the Coriolis(®)μ were also analyzed by real-time PCR...
June 22, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28639736/primary-secondary-amine-as-a-sorbent-material-in-dispersive-solid-phase-extraction-clean-up-for-the-determination-of-indicator-polychlorinated-biphenyls-in-environmental-water-samples-by-gas-chromatography-with-electron-capture-detection
#12
Yuanming Guo, Hongmei Hu, Tiejun Li, Lijian Xue, Xiaoning Zhang, Zhi Zhong, Yurong Zhang, Yanjian Jin
A simple, rapid, and novel method has been developed and validated for determination of seven indicator polychlorinated biphenyls in water samples by gas chromatography with electron capture detection. 1 L of water samples containing 30 g of anhydrous sodium sulfate was first liquid-liquid extracted with an automated Jipad-6XB vertical oscillator using n-hexane/dichloromethane (1:1, v/v). The concentrated extract was cleaned up by dispersive solid-phase extraction with 100 mg of primary secondary amine as sorbent material...
June 22, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28638329/the-contribution-of-cognitive-factors-to-individual-differences-in-understanding-noise-vocoded-speech-in-young-and-older-adults
#13
Stephanie Rosemann, Carsten Gießing, Jale Özyurt, Rebecca Carroll, Sebastian Puschmann, Christiane M Thiel
Noise-vocoded speech is commonly used to simulate the sensation after cochlear implantation as it consists of spectrally degraded speech. High individual variability exists in learning to understand both noise-vocoded speech and speech perceived through a cochlear implant (CI). This variability is partly ascribed to differing cognitive abilities like working memory, verbal skills or attention. Although clinically highly relevant, up to now, no consensus has been achieved about which cognitive factors exactly predict the intelligibility of speech in noise-vocoded situations in healthy subjects or in patients after cochlear implantation...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28636338/contributions-of-local-farming-to-urban-sustainability-in-the-northeast-united-states
#14
Benjamin P Goldstein, Michael Z Hauschild, John E Fernández, Morten Birkved
Food consumption is an important contributor to a city's environmental impacts (carbon emissions, land occupation, water use, etc.) Urban farming (UF) has been advocated as a means to increase urban sustainability by reducing food-related transport and tapping into local resources. Taking Boston as an illustrative Northeast U.S. city, we developed a novel method to estimate sub-urban, food-borne carbon and land footprints using multiregion-input-output modeling and nutritional surveys. Computer simulations utilizing primary data explored UF's ability to reduce these footprints using select farming technologies, building on previous city-scale UF assessments which have hitherto been dependent on proxy data for UF...
June 21, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28636071/the-role-of-homocysteine-in-seminal-vesicles-remodeling-in-rat
#15
Adel Ghoul, Elara Moudilou, Mohamed El Hadi Cherifi, Fouzia Zerrouk, Billel Chaouad, Anissa Moulahoum, Souhila Aouichat-Bouguerra, Khira Othmani, Jean-Marie Exbrayat, Yasmina Benazzoug
INTRODUCTION: Elevated plasma homocysteine (Hcy) levels have been associated with several tissue injuries including heart and liver fibrosis. In these diseases, hyperhomocysteinemia (Hhcy) plays a major role in modulating the alteration of the balance between matrix metalloproteinases (MMP) and tissue inhibitors of metalloproteinases (TIMPs), leading to the pathological accumulation of extracellular matrix (ECM) proteins. Since the effect of Hhcy on ECM of seminal vesicle was not studied, the aim of our research was to check if Hcy can induce a remodeling within seminal vesicles ECM...
June 21, 2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28634447/the-moving-rubber-hand-illusion-reveals-that-explicit-sense-of-agency-for-tapping-movements-is-preserved-in-functional-movement-disorders
#16
Angela Marotta, Federica Bombieri, Massimiliano Zampini, Federico Schena, Carlo Dallocchio, Mirta Fiorio, Michele Tinazzi
Functional movement disorders (FMD) are characterized by motor symptoms (e.g., tremor, gait disorder, and dystonia) that are not compatible with movement abnormalities related to a known organic cause. One key clinical feature of FMD is that motor symptoms are similar to voluntary movements but are subjectively experienced as involuntary by patients. This gap might be related to abnormal self-recognition of bodily action, which involves two main components: sense of agency and sense of body ownership. The aim of this study was to systematically investigate whether this function is altered in FMD, specifically focusing on the subjective feeling of agency, body ownership, and their interaction during normal voluntary movements...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28634048/activation-volume-vs-bold-signal-change-as-measures-of-fmri-activation-its-impact-on-gaba-fmri-activation-correlation
#17
Pallab K Bhattacharyya, Micheal D Phillips, Lael A Stone, Mark J Lowe
PURPOSE: To explore the relative robustness of functional MRI (fMRI) activation volume and blood oxygen level-dependent (BOLD) signal change as fMRI metric, and to study the effect of relative robustness on the correlation between fMRI activation and cortical gamma amino butyric acid (GABA) in healthy controls and patients with multiple sclerosis (MS). METHODS: fMRI data were acquired from healthy controls and patients with MS, with the subjects peforming self paced bilateral finger tapping in block design...
June 17, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28633956/a-time-adjustable-pulsatile-release-system-for-ketoprofen-in-vitro-and-in-vivo-investigation-in-a-pharmacokinetic-study-and-an-ivivc-evaluation
#18
Haiying Wang, Lizhen Cheng, Haoyang Wen, Caiyan Li, Yuenan Li, Xiaoyu Zhang, Yongfei Wang, Yanyan Wang, Tuanjie Wang, Weisan Pan, Xinggang Yang
A time-adjustable pulsatile release system (TAPS) containing ketoprofen (KF) as an active pharmaceutical agent was developed having been designed for bedtime dosing and releasing drug in the early morning to control the symptoms of rheumatoid arthritis (RA). The formulation involved a tablet core (KF) and a control-release layer, and the coating membrane was composed of EC and Eudragit L100. A single-factor study, a central composite design and a response surface method were selected to optimize the formula and the optimum prescription was as follows: tablet core (KF 50mg, MCC 70mg, lactose 40mg, L-HPC 38mg), and film (EC 7...
June 17, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28633526/reduced-graphene-oxide-poly-acrylic-acid-aerogels-as-a-three-dimensional-replacement-for-metal-foil-current-collectors-in-lithium-ion-batteries
#19
Han Xiao, Joshua P Pender, Mackenzie Meece-Rayle, J Pedro de Souza, Kyle C Klavetter, Heonjoo Ha, Jie Lin, Adam Heller, Christopher J Ellison, Charles Buddie Mullins
We report the synthesis and properties of a low-density (~5 mg/cm3) and highly-porous (99.6% void space) three-dimensional reduced graphene oxide (rGO)/poly(acrylic acid) (PAA) nanocomposite aerogel as the scaffold for cathode materials in lithium-ion batteries (LIBs). The rGO-PAA is both simple and starts from readily-available graphite and PAA thereby providing a scalable fabrication procedure. The scaffold can support as much as a 75 mg/cm2 loading of LiFePO4 (LFP) in a ~ 430 µm thick layer, and the porosity of the aerogel is tunable by compression; the flexible aerogel can be compressed 30-fold (i...
June 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28633099/simultaneous-and-specific-enrichment-of-several-amphenicol-antibiotics-residues-in-food-based-on-novel-aptamer-functionalized-magnetic-adsorbents-using-hplc-dad
#20
Shengfeng Huang, Ning Gan, Haibo Liu, You Zhou, Yinji Chen, Yuting Cao
In this work, a novel aptamer functionalized magnetic adsorbent was developed and combined with magnetic dispersive solid phase extraction (MDSPE) for selective enrichment of several amphenicol antibiotics residues (chloramphenicol(CAP), thiamphenicol(TAP) and florphenicol(FF)) in foodstuff then determined by High Performance Liquid Chromatography (HPLC)-Diode array detector(DAD). Firstly, a magnetic silica-coated Fe3O4 microsphere(Fe3O4@SiO2) was synthetized by sol-gel method, then it was functionalized by amino groups through 3-Aminopropyltriethoxysilane (APTES) reagent to form Fe3O4@SiO2-NH2; Thirdly, the amino group on Fe3O4@SiO2-NH2 was transferred to carboxylic group via the succinic anhydride to form Fe3O4@SiO2-COOH...
June 12, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
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