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https://www.readbyqxmd.com/read/28545123/predictability-of-arousal-in-mouse-slow-wave-sleep-by-accelerometer-data
#1
Gustavo Zampier Dos Santos Lima, Sergio Roberto Lopes, Thiago Lima Prado, Bruno Lobao-Soares, George C do Nascimento, John Fontenele-Araujo, Gilberto Corso
Arousals can be roughly characterized by punctual intrusions of wakefulness into sleep. In a standard perspective, using human electroencephalography (EEG) data, arousals are associated to slow-wave rhythms and K-complex brain activity. The physiological mechanisms that give rise to arousals during sleep are not yet fully understood. Moreover, subtle body movement patterns, which may characterize arousals both in human and in animals, are usually not detectable by eye perception and are not in general present in sleep studies...
2017: PloS One
https://www.readbyqxmd.com/read/28544806/can-soil-microbial-diversity-influence-plant-metabolites-and-life-history-traits-of-a-rhizophagous-insect-a-demonstration-in-oilseed-rape
#2
Tom Lachaise, Morgane Ourry, Lionel Lebreton, Anne-Yvonne Guillerm-Erckelboudt, Juliette Linglin, Chrystelle Paty, Valérie Chaminade, Nathalie Marnet, Julie Aubert, Denis Poinsot, Anne-Marie Cortesero, Christophe Mougel
Interactions between plants and phytophagous insects play an important part in shaping the biochemical composition of plants. Reciprocally plant metabolites can influence major life history traits in these insects and largely contribute to their fitness. Plant rhizospheric microorganisms are an important biotic factor modulating plant metabolites and adaptation to stress. While plant-insects or plant-microorganisms interactions and their consequences on the plant metabolite signature are well-documented, the impact of soil microbial communities on plant defenses against phytophagous insects remains poorly known...
May 23, 2017: Insect Science
https://www.readbyqxmd.com/read/28544465/correlates-of-nocturia-and-relationships-of-nocturia-with-sleep-quality-and-glycemic-control-in-women-with-type-2-diabetes
#3
Chun-Jen Chang, Dee Pei, Chien-Chih Wu, Mary H Palmer, Ching-Chieh Su, Shu-Fen Kuo, Yuan-Mei Liao
PURPOSES: To explore correlates of nocturia, compare sleep quality and glycemic control for women with and without nocturia, and examine relationships of nocturia with sleep quality and glycemic control in women with diabetes. DESIGN: This study was a cross-sectional, correlational study with data collected from 275 women with type 2 diabetes. METHODS: Data were collected using a structured questionnaire. Multivariate logistic regression analyses were used to identify correlates...
May 23, 2017: Journal of Nursing Scholarship
https://www.readbyqxmd.com/read/28544464/structural-and-biochemical-insights-into-the-2-o-methylation-of-pyrimidines-34-in-trna
#4
Panjiao Pang, Xiangyu Deng, Zhong Wang, Wei Xie
tRNA molecules undergo extensive modifications during their maturation process and these modifications play important cellular roles. TrmL is a tRNA-modification enzyme that catalyzes the transfer of a methyl group to the 2' hydroxyl group of the pyrimidines at the wobble position 34 in two tRNA(L)(eu) isoacceptors, but the mechanism remains elusive. In this study, we determined the crystal structure of TrmL from Thermus Thermophilus (TtTrmL) to 1.7 Å. The enzyme contains only the conserved minimal SPOUT fold, but displays distinct biochemical behaviors from its Escherichia coli counterpart EcTrmL...
May 25, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28543865/adapting-the-eating-disorder-examination-for-use-during-pregnancy-preliminary-results-from-a-community-sample-of-women-with-overweight-and-obesity
#5
Rebecca L Emery, Jennifer L Grace, Rachel P Kolko, Michele D Levine
OBJECTIVE: The Eating Disorder Examination (EDE) is a structured clinical interview that is widely used for assessing disordered eating. Although the EDE has been used in pregnant women, no standard pregnancy version has been developed. Accordingly, the present study aimed to document adaptations made to a pregnancy version of the EDE (EDE-PV) and to describe the internal reliability of this adapted version. METHOD: Three major modifications were made in the development of the EDE-PV...
May 2017: International Journal of Eating Disorders
https://www.readbyqxmd.com/read/28541929/pressure-induced-structural-modifications-of-rare-earth-hafnate-pyrochlore
#6
Katlyn M Turner, Dylan R Rittman, Rachel A Heymach, Cameron L Tracy, Madison L Turner, Antonio F Fuentes, Wendy L Mao, Rodney C Ewing
Complex oxides with the pyrochlore (A2B2O7) and defect-fluorite ((A,B)4O7) structure-types undergo structural transformations under high-pressure. Rare-earth hafnates (A2Hf2O7) form the pyrochlore structure for A  =  La-Tb and the defect-fluorite structure for A  =  Dy-Lu. High-pressure transformations in A2Hf2O7 pyrochlore (A  =  Sm, Eu, Gd) and defect-fluorite (A  =  Dy, Y, Yb) were investigated up to ~50 GPa and characterized by in situ Raman spectroscopy and synchrotron x-ray diffraction (XRD)...
May 25, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28541081/meta-analysis-of-the-effects-of-academic-interventions-and-modifications-on-student-behavior-outcomes
#7
Kristy Warmbold-Brann, Matthew K Burns, June L Preast, Crystal N Taylor, Lisa N Aguilar
The current study examined the effect of academic interventions and modifications on behavioral outcomes in a meta-analysis of 32 single-case design studies. Academic interventions included modifying task difficulty, providing instruction in reading, mathematics, or writing, and contingent reinforcement for academic performance. There was an overall small to moderate effect (ϕ = .56) on behavioral outcomes, with a stronger effect on increasing time on task (ϕ = .64) than on decreasing disruptive behavior (ϕ = ...
May 25, 2017: School Psychology Quarterly
https://www.readbyqxmd.com/read/28540717/imaging-laser-triggered-drug-release-from-gold-nanocages-with-transient-absorption-lifetime-microscopy-talm
#8
Yongkui Xu, Qi Liu, Ruoyu He, Xianchong Miao, Minbiao Ji
Nanoparticles have shown promise in loading and delivering drugs for targeted therapy. Many progresses have been made in the design, synthesis and modification of nanoparticles to fulfill such goals. However, realizing targeted intracellular delivery and controlled release of drugs remain challenging, partly due to the lack of reliable tools to detect the drug releasing process. In this paper, we applied femtosecond laser pulses to trigger the explosion of gold nanocages (AuNCs) and controlled the intracellular release of loaded AlPcS molecules for photodynamic therapy (PDT)...
May 25, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28538173/cortico-accumbens-regulation-of-approach-avoidance-behavior-is-modified-by-experience-and-chronic-pain
#9
Neil Schwartz, Catriona Miller, Howard L Fields
Although optimizing decisions between drives to avoid pain and to obtain reward are critical for survival, understanding the neuronal circuit activity that regulates choice during approach-avoidance conflicts is limited. Here, we recorded neuronal activity in the infralimbic (IL) cortex and nucleus accumbens (NAc) during an approach-avoidance task. In this task, disruption of approach by a pain-predictive cue (PPC-avoidance) is extinguished by experience and reinstated in a model of chronic pain. In the IL-NAc circuit, the activity of distinct subpopulations of neurons predicts the extent of PPC-avoidance observed...
May 23, 2017: Cell Reports
https://www.readbyqxmd.com/read/28537301/a-polymer-based-probe-for-specific-discrimination-of-cysteine
#10
Keyuan Liu, Ganhong Du, Mengna Zhao, Long Ye, Huifang Shen, Liming Jiang
A novel optically active methacrylic polymer with an amide-linked acrylate appendage as a chemosensor was synthesized by atom transfer radical polymerization (ATRP) followed by post-modification through a bottom-up design. The sensing behavior of the polymeric probe to various α-amino acids has been investigated through fluorescence, absorption, circular dichroism (CD), and visual color changes at physiological pH. It was found that the sensor exhibits specificity for the fluorescent recognition of cysteine against other amino acids and thiols in a turn-on mode, being significantly more effective than the corresponding small molecule counterpart...
May 24, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28537194/an-investigation-into-the-potential-role-of-brain-angiogenesis-inhibitor-protein-3-bai3-in-the-tumorigenesis-of-small-cell-carcinoma-a-review-of-the-surrounding-literature
#11
Michael Thomas, David Snead, Daniel Mitchell
Brain angiogenesis inhibitor protein 3 (BAI3) is from the adhesion group of seven-transmembrane spanning G protein-coupled receptors (GPCRs) and has been identified via gene expression profiling as being upregulated in small-cell lung cancer (SCLC) tumors. It has subsequently been validated as a sensitive and specific immunohistochemical marker for SCLC, helping to differentiate these tumors from morphologically similar large-cell neuroendocrine (LCNEC) malignancies. It is, however, still unclear as to the role BAI3 proteins might play in SCLC and indeed how they might contribute to tumorigenesis...
May 24, 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28535460/a-synchrotron-infrared-absorption-study-of-pressure-induced-polymerization-of-acrylamide
#12
Himal Bhatt, M N Deo
The hydrogen bonded dimeric structure of the model amide based molecular crystal acrylamide has been investigated under pressure using micro-spectroscopy, employing synchrotron infrared radiation up to 24GPa at room temperature. The high pressure spectra indicate systematic evolution of new features above 4GPa, which have been identified to be due to the emergence of a polymeric phase. The polymerization gets completed up to 16.8GPa and the observed changes are found to be irreversible upon the release of pressure...
May 1, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28534391/understanding-electron-transport-in-disk-shaped-triphenylene-tris-naphthaleneimidazole-s-through-structural-modification-and-theoretical-investigation
#13
Yue Zhang, David A Hanifi, M Paz Fernandez-Liencres, Liana M Klivansky, Biwu Ma, Amparo Navarro, Yi Liu
Disk-shaped molecules with large aromatic π-surface are a class of organic semiconductors of which the charge carrier transport properties could be greatly facilitated by preferred intermolecular stacking of the π-surfaces. The optical and electronic properties are not only determined by the core aromatic structure of these disk-shaped molecules, but also strongly dependent on the sidechains, which directly impact the molecular self-assembly behavior in condensed phases. Triphenylene-tris(naphthaleneimidazole) (TP-TNI) is a recently reported n-type semiconductor featuring a large π-core and branched sidechains with an electron transporting mobility reaching 10-4 cm2V-1s-1...
May 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28532119/poly-d-l-lactide-polycaprolactone-bioactive-glasss-nanocomposites-materials-for-anterior-cruciate-ligament-reconstruction-screws-the-effect-of-glass-surface-functionalization-on-mechanical-properties-and-cell-behaviors
#14
Javad Esmaeilzadeh, Saeed Hesaraki, Seyed Mohammad-Mehdi Hadavi, Mohammad Hosein Ebrahimzadeh, Masoud Esfandeh
In this paper, different nanocomposites made of a polymer blend (80% of PDLLA and 20% of PCL in w/w) and various amounts of a sol-gel derived bioactive glass nanoparticles (0, 1, 3 and 6wt%) were prepared using a solvent-evaporation technique. The morphology, mechanical properties and osteoblastic cell behaviors of the nanocomposites were evaluated. According to the early results, addition of bioactive glass nanoparticles to the polymer matrix reduced the tensile and flexural strength because of a non-uniform distribution of the nanoparticles...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532076/sustained-drug-release-from-surface-modified-uhmwpe-for-acetabular-cup-lining-in-total-hip-implant
#15
R Manoj Kumar, Pallavi Gupta, Sandan Kumar Sharma, Akshat Mittal, Manish Shekhar, Vijayesh Kumar, B V Manoj Kumar, Partha Roy, Debrupa Lahiri
Despite sterilization and aseptic procedure, bacterial infection remains a key challenge in total hip arthroplasties. This fact emphasizes the urgent need for development of new implant systems, which should releases the drug in a controlled manner without sparing its mechanical and tribological properties. In this study, the lining material of the acetabular cup, in total hip implant, has been modified for sustained release of drugs, which should be available throughout the site of implantation to fight the post-operation bacterial infection...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532004/corrosion-and-surface-modification-on-biocompatible-metals-a-review
#16
REVIEW
R I M Asri, W S W Harun, M Samykano, N A C Lah, S A C Ghani, F Tarlochan, M R Raza
Corrosion prevention in biomaterials has become crucial particularly to overcome inflammation and allergic reactions caused by the biomaterials' implants towards the human body. When these metal implants contacted with fluidic environments such as bloodstream and tissue of the body, most of them became mutually highly antagonistic and subsequently promotes corrosion. Biocompatible implants are typically made up of metallic, ceramic, composite and polymers. The present paper specifically focuses on biocompatible metals which favorably used as implants such as 316L stainless steel, cobalt-chromium-molybdenum, pure titanium and titanium-based alloys...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531655/competitive-adsorption-behavior-toward-metal-ions-on-nano-fe-mg-ni-ternary-layered-double-hydroxide-proved-by-xps-evidence-of-selective-and-sensitive-detection-of-pb-ii
#17
Shan-Shan Li, Min Jiang, Tian-Jia Jiang, Jin-Huai Liu, Zheng Guo, Xing-Jiu Huang
Hypersensitive and highly selective nanomaterials for the measurement of heavy metal ions (HMIs) hold a key to electro-analysis. Various works improved the results of analysis but without scientific understanding. Herein, Fe/Mg/Ni-layered double hydroxide (LDH) has been successfully prepared and its electrochemical behavior for Pb(II) detection is also studied using square wave anodic stripping voltammetry (SWASV). The well performance of electrochemistry suggest that the modification with Fe/Mg/Ni-LDH significantly promotes the selectivity and sensitivity toward Pb(II)...
May 11, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28531598/the-effect-of-eating-behavior-modification-on-visceral-fat-level-in-individuals-with-normal-body-mass-index-bmi
#18
Angeliki Morari, Emmanouil Moraris, Alkistis Adramerina, Charalambos Neocleous
No abstract text is available yet for this article.
June 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28526915/dietary-behaviors-in-psoriasis-patient-reported-outcomes-from-a-u-s-national-survey
#19
Ladan Afifi, Melissa J Danesh, Kristina M Lee, Kevin Beroukhim, Benjamin Farahnik, Richard S Ahn, Di Yan, Rasnik K Singh, Mio Nakamura, John Koo, Wilson Liao
INTRODUCTION: Psoriasis patients demonstrate high interest in the role of diet on their skin condition. However, data are lacking to describe dietary interventions among psoriasis patients and associated outcomes. This study aims to identify common dietary habits, interventions and perceptions among patients with psoriasis, and to examine patient-reported skin outcomes in response to these interventions. METHODS: We administered a 61-question survey to the National Psoriasis Foundation membership asking psoriasis patients about dietary habits, modifications, skin responses, and perceptions...
May 19, 2017: Dermatology and Therapy
https://www.readbyqxmd.com/read/28525445/priorities-and-preferences-for-weight-management-and-cardiovascular-risk-reduction-in-primary-care
#20
Lynne S Nemeth, LaShanta J Rice, Maryellen Potts, Cathy Melvin, Melanie Jefferson, Chanita Hughes-Halbert
Implementing behavioral interventions for cardiovascular risk reduction and weight management is challenging in primary care. Primary care patients and providers were recruited for qualitative interviews to identify priorities and preferences for addressing weight management. Thematic analysis was used to identify relevant resources, barriers to lifestyle modification, health behavior change, and implementation of weight management strategies into care. Patients and providers prioritized increasing physical activity and healthy diets when managing chronic disease; and reported decreased patient motivation, knowledge, and limited organizational capacity and time among providers to deliver intensive interventions...
July 2017: Family & Community Health
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