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https://www.readbyqxmd.com/read/28345584/terahertz-and-mid-infrared-plasmons-in-three-dimensional-nanoporous-graphene
#1
Fausto D'Apuzzo, Alba R Piacenti, Flavio Giorgianni, Marta Autore, Mariangela Cestelli Guidi, Augusto Marcelli, Ulrich Schade, Yoshikazu Ito, Mingwei Chen, Stefano Lupi
Two-dimensional (2D) graphene emerged as an outstanding material for plasmonic and photonic applications due to its charge-density tunability, high electron mobility, optical transparency and mechanical flexibility. Recently, novel fabrication processes have realised a three-dimensional (3D) nanoporous configuration of high-quality monolayer graphene which provides a third dimension to this material. In this work, we investigate the optical behaviour of nanoporous graphene by means of terahertz and infrared spectroscopy...
March 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/28345405/thickness-distribution-of-glenohumeral-joint-cartilage
#2
Christoph Schleich, Bernd Bittersohl, Gerald Antoch, Rüdiger Krauspe, Christoph Zilkens, Jörn Kircher
High-resolution 3-dimensional cartilage-specific magnetic resonance imaging (MRI) was performed at 3 T to test the following hypotheses: (1) there is a nonuniform cartilage thickness distribution both on the proximal humerus and on the glenoid surface and (2) the glenohumeral joint as a combined system is congruent with the level of the joint cartilage surface without substantial radial mismatch. Inclusion of 38 volunteers (19 females, mean age 24.34 ± 2.22 years; range 21-29 years) in a prospective study...
April 2017: Cartilage
https://www.readbyqxmd.com/read/28343662/epithelial-igf1r-is-dispensable-for-igf2-mediated-enhanced-intestinal-adaptation-in-retinoblastoma-deficient-mice
#3
Raphael C Sun, Pamela M Choi, Jose L Diaz-Miron, Joshua Sommovilla, Jun Guo, Christopher R Erwin, Brad W Warner
PURPOSE: Previously, we demonstrated enhanced adaptation after small bowel resection (SBR) in intestinal-specific retinoblastoma (Rb)-deficient mice along with elevated levels of insulin-like growth factor 2 (IGF2) expression within the villi. The purpose of this study was to verify that the insulin-like growth factor 1 receptor (IGF1R) plays a role in this phenomenon. METHODS: Inducible and intestinal specific Rb and IGF1R double knockout mice (iRb/IGF1R-IKO) (n=4) and Rb single knockout mice (iRb-IKO) (n=5) underwent 50% mid SBR...
March 18, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28343558/simulator-based-obstetric-ultrasound-training-a-prospective-randomized-single-blinded-study
#4
Hadar Rosen, Rory Windrim, Yee Man Lee, Lara Gotha, Vsevolod Perelman, Stefania Ronzoni
OBJECTIVE: To compare the use of simulator-based and patient-based obstetric ultrasound training. METHODS: This was a prospective, randomized, single-blinded trial. Eighteen consenting obstetric trainees with minimal previous ultrasound exposure were recruited. Enrolled patients were also fully consenting. Mid-trimester fetal brain anatomy in the standard planes (i.e., biparietal diameter and head circumference, cavum septum pellucidum, posterior fossa, and lateral ventricle) was chosen as a surrogate for all fetal anatomy ultrasound training...
March 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28343395/investigation-of-the-spectroscopic-information-of-functional-groups-related-to-carbohydrate-in-different-morphological-fractions-of-corn-stover-and-their-relationship-to-nutrient-supply-and-biodegradation-characteristics
#5
Hangshu Xin, Xue Ding, Liyang Zhang, Xiaofan Wang, Yonggen Zhang, Fang Sun
The objectives of this study were to investigate 1) nutritive values and biodegradation characteristics and 2) mid-IR spectroscopic features within the regions associated with carbohydrate functional groups (including cellulosic component (CELC); structural carbohydrate (STCHO) and total carbohydrate (CHO)) in different morphological fractions of corn stover. Furthermore, correlation and regression analyses were also applied to find out the relationship between nutritional values and spectroscopic parameters...
March 25, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28342347/assumed-non-persistent-environmental-chemicals-in-human-adipose-tissue-matrix-stability-and-correlation-with-levels-measured-in-urine-and-serum
#6
F Artacho-Cordón, J P Arrebola, O Nielsen, P Hernández, N E Skakkebaek, M F Fernández, A M Andersson, N Olea, H Frederiksen
The aim of this study was to (1) optimize a method for the measurement of parabens and phenols in adipose tissue, (2) evaluate the stability of chemical residues in adipose tissue samples, and (3) study correlations of these compounds in urine, serum, and adipose tissue. Samples were obtained from adults undergoing trauma surgery. Nine phenols and seven parabens were determined by isotope diluted TurboFlow-LC-MS/MS. The analytical method showed good accuracy and precision. Limits of detection (LOD) for parabens and phenols ranged from 0...
March 22, 2017: Environmental Research
https://www.readbyqxmd.com/read/28342101/myocardial-segmentation-based-on-coronary-anatomy-using-coronary-computed-tomography-angiography-development-and-validation-in-a-pig-model
#7
Mi Sun Chung, Dong Hyun Yang, Young-Hak Kim, Soo-Jin Kang, Joonho Jung, Namkug Kim, Seung-Ho Heo, Seunghee Baek, Joon Beom Seo, Byoung Wook Choi, Joon-Won Kang, Tae-Hwan Lim
OBJECTIVES: To validate a method for performing myocardial segmentation based on coronary anatomy using coronary CT angiography (CCTA). METHODS: Coronary artery-based myocardial segmentation (CAMS) was developed for use with CCTA. To validate and compare this method with the conventional American Heart Association (AHA) classification, a single coronary occlusion model was prepared and validated using six pigs. The unstained occluded coronary territories of the specimens and corresponding arterial territories from CAMS and AHA segmentations were compared using slice-by-slice matching and 100 virtual myocardial columns...
March 24, 2017: European Radiology
https://www.readbyqxmd.com/read/28341358/meta-analysis-of-the-optimal-percutaneous-revascularization-strategy-in-patients-with-acute-myocardial-infarction-cardiogenic-shock-and-multivessel-coronary-artery-disease
#8
Giuseppe Tarantini, Gianpiero D'Amico, Paola Tellaroli, Claudia Colombo, Sorin J Brener
The optimal percutaneous coronary intervention (PCI) revascularization strategy in patients with multivessel (MV) coronary artery disease (CAD) who present with acute myocardial infarction (AMI) complicated by cardiogenic shock (CS) has not been systematically addressed. Accordingly, we performed a study-level meta-analysis comparing 2 PCI strategies in these patients-infarct-related artery (IRA) only versus MV revascularization. Studies including patients with AMI and MV CAD complicated with CS who received primary PCI were searched from 2000 to 2016...
February 28, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28341321/reprint-of-repeated-adolescent-activity-based-anorexia-influences-central-estrogen-signaling-and-adulthood-anxiety-like-behaviors-in-rats
#9
Tien-Jui Lee, Kimberly P Kinzig
Anorexia nervosa (AN) typically presents in adolescence and is highly comorbid with anxiety and depression, which often persist after elimination of AN symptomology. The activity-based anorexia (ABA) paradigm allows for evaluation of behavioral and neuroendocrine consequences of AN-like behaviors, including voluntary anorexia, hyperactivity, and disruption of the hypothalamic-pituitary-gonadal (HPG) and the hypothalamic pituitary adrenal (HPA) axis. Because ABA in adolescent females results in increased anxiety-like behavior in adulthood and the estrogen signaling system has been shown to play a role in anxiety and food intake, we investigated the role of ovarian hormones in adolescent ABA-treated rats, and long-term effects of mid- and late adolescent ABA exposure on behavior and estrogen signaling...
March 21, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28339418/survey-of-kinesiologists-functional-capacity-evaluation-practice-in-canada
#10
Kathryn E Sinden, Taya L McGillivary, Elizabeth Chapman, Steven L Fischer
BACKGROUND: In Canada, functional capacity evaluations (FCEs) are commonly administered by several health care professions including kinesiologists. Kinesiologists have been recently regulated as health care professionals in Ontario and we know little about their demographics, the frequency of FCE administration, or the types of FCEs used by this group. OBJECTIVE: The purposes of this study were to identify: 1) the demographic characteristics and FCE education of kinesiology FCE practitioners; 2) the FCE systems most used by these practitioners and 3) the constructs from assessments used to determine functional capacity...
March 23, 2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/28338565/corneal-nerve-morphology-sensitivity-and-tear-neuropeptides-in-contact-lens-wear
#11
Blanka Golebiowski, Cecilia Chao, Fiona Stapleton, Isabelle Jalbert
PURPOSE: To determine tear neuropeptide levels in contact lens wearers and non-wearers, and to examine relationships with indices of corneal innervation, tear function, and ocular discomfort. METHODS: A cross-sectional, single-visit, investigator-masked pilot study. Assessments included Ocular Comfort Index (OCI), central and mid-peripheral corneal nerve density and morphology (HRT-Rostock), corneal sensitivity (Cochet-Bonnet aesthesiometer), tear Substance P and calcitonin gene-related peptide (CGRP) concentration (ELISA), in situ tear osmolarity (TearLab), tear secretion (Phenol Red Thread), and noninvasive tear break-up time (NITBUT; Keeler Tearscope)...
April 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28338079/dissecting-mirna-gene-repression-on-single-cell-level-with-an-advanced-fluorescent-reporter-system
#12
Nicolas Lemus-Diaz, Kai O Böker, Ignacio Rodriguez-Polo, Michael Mitter, Jasmin Preis, Maximilian Arlt, Jens Gruber
Despite major advances on miRNA profiling and target predictions, functional readouts for endogenous miRNAs are limited and frequently lead to contradicting conclusions. Numerous approaches including functional high-throughput and miRISC complex evaluations suggest that the functional miRNAome differs from the predictions based on quantitative sRNA profiling. To resolve the apparent contradiction of expression versus function, we generated and applied a fluorescence reporter gene assay enabling single cell analysis...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336267/association-analysis-of-polymorphism-in-kiss1-gene-with-reproductive-traits-in-goats
#13
Mahmoud S El-Tarabany, Asmaa W Zaglool, Akram A El-Tarabany, Ashraf Awad
Understanding the genetic information of related genes is helpful for the selection and breeding course through marker assisted selection. The aim of the current study was to detect polymorphisms of the KiSS1 gene in 137 animals, including Baladi, Zaraibi and Damascus goat breeds by PCR-RFLP, and DNA sequencing and to investigate the association between these variants and reproductive traits. Comparison of the nucleotide sequence indicated the substitution of T with A at position 121 (T121A) in the intron 1 of the KiSS1 gene in all goat breeds...
March 18, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28334856/evaluating-the-effects-of-organizational-and-educational-interventions-on-adherence-to-clinical-practice-guidelines-in-a-low-resource-primary-care-setting-in-kenya
#14
Joseph R Egger, Kayla Stankevitz, Robert Korom, Philip Angwenyi, Brittney Sullivan, Jun Wang, Sonia Hatfield, Emma Smith, Karishma Popli, Jessica Gross
Background: Mid-level care providers serve as the backbone of primary care in many parts of sub-Saharan Africa. Despite this, research suggests that the quality and consistency of this care is uneven. This study assessed the degree to which a set of four simple, low-cost interventions could improve adherence to a set of clinical quality measures (CQMs) associated with four common health conditions seen in a resource-constrained primary care setting. Methods: A quasi-experimental, longitudinal study was carried out in three primary care clinics in Nairobi, Kenya from August 2014 to January, 2015...
March 15, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/28334477/latent-classes-of-alcohol-problems-in-mauritian-men-results-from-the-joint-child-health-project
#15
Susan E Luczak, Carol A Prescott, Peter H Venables
INTRODUCTION AND AIMS: The purpose of this study was to identify latent classes of alcohol problems and their sociodemographic correlates in the east African nation of Mauritius. DESIGN AND METHODS: Participants were from the Joint Child Health Project, a longitudinal study of a 1969-1970 birth cohort of 1795 individuals. In mid-adulthood (M = 37 years), all available participants (n = 1206; 67% of the original cohort) were assessed for demographic characteristics, and lifetime drinkers were assessed for alcohol-related problems...
March 23, 2017: Drug and Alcohol Review
https://www.readbyqxmd.com/read/28334359/effectiveness-of-microbial-and-chemical-insecticides-for-supplemental-control-of-bollworm-on-bt-and-non-bt-cottons
#16
N S Little, R G Luttrell, K C Allen, O P Perera, K A Parys
Laboratory and field experiments were conducted to determine the effectiveness of microbial and chemical insecticides for supplemental control of bollworm, Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae), on non-Bt (DP1441RF) and Bt (DP1321B2RF) cottons. Neonate and 3rd instar larvae survival was evaluated on leaf tissue treated with microbial and chemical insecticides including a commercial formulation of Bacillus thuringiensis (Dipel), a Heliothis (Helicoverpa) nuclear polyhedrosis virus (NPV; Gemstar), λ-cyhalothrin (Karate Z), and chlorantraniliprole (Prevathon)...
March 18, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334308/evaluation-of-pheromone-trap-devices-for-the-capture-of-thaumetopoea-pityocampa-lepidoptera-thaumetopoeidae-in-southern-europe
#17
Christos G Athanassiou, Nickolas G Kavallieratos, David Pardo, José Sancho, Marco Colacci, Maria C Boukouvala, Anastassia J Nikolaidou, Demetrius C Kondodimas, Enrique Benavent-Fernández, Santiago Gálvez-Settier, Pasquale Trematerra
The development of reliable monitoring techniques can offer valuable sources of knowledge on the control of Thaumetopoea pityocampa (Denis and Schiffermüller) (Lepidoptera: Thaumetopoeidae). Nevertheless, there is a knowledge gap on the simultaneous large-scale monitoring of T. pityocampa male adult population by using novel trap devices. Thus, the influence of type of trap device on the capture of male adults of T. pityocampa was evaluated in four areas with pine trees in southern Europe; two in Greece (Thessaly and Attica), one in Italy (Molise), and one in Spain (Valencia)...
March 14, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334290/field-evolved-resistance-of-bemisia-tabaci-hemiptera-aleyrodidae-to-carbodiimide-and-neonicotinoids-in-pakistan
#18
Mushtaq Ahmad, Rashid A Khan
The evolution of resistance to carbodiimide (a toxic metabolite of diafenthiuron) and four neonicotinoids imidacloprid, acetamiprid, thiamethoxam, and thiacloprid in the Pakistani populations of sweetpotato whitefly (Bemisia tabaci Gennadius) was monitored from 1996 to 2015 using a leaf-dip bioassay. Diafenthiuron, imidacloprid, and acetamiprid were introduced into Pakistani agriculture in mid-1990s and heavily used since then, because B. tabaci resistance and consequently control failures to conventional insecticides such as organophosphates, carbamates, and pyrethroids were widespread during the 1990s...
March 3, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28333280/hcg-activates-the-erk1-2-mitogen-activated-protein-kinase-pathway-in-human-endometrial-stromal-cells-transiently-increasing-the-progesterone-receptor-and-regulating-genes-associated-with-endometrial-receptivity
#19
Alejandro Tapia-Pizarro, Sebastián Archiles, Felipe Argandoña, Cecilia Valencia, Keyla Zavaleta, María Cecilia Johnson, Reinaldo González-Ramos, Luigi Devoto
STUDY QUESTION: How does hCG signal in human endometrial stromal cells (ESCs) and what is its role in regulating ESC function? SUMMARY ANSWER: CG signaling in ESCs activates the extracellular signal-regulated protein kinases 1 and 2 (Erk1/2) pathway through exchange protein activated by cAMP (Epac) and transiently increases progesterone receptor (PR) transcript and protein expression and its transcriptional function. WHAT IS KNOWN ALREADY: hCG is one of the earliest embryo-derived secreted signals in the endometrium, which abundantly expresses LH/hCG receptors...
March 14, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28333238/clustering-of-pcos-like-traits-in-naturally-hyperandrogenic-female-rhesus-monkeys
#20
D H Abbott, B H Rayome, D A Dumesic, K C Lewis, A K Edwards, K Wallen, M E Wilson, S E Appt, J E Levine
STUDY QUESTION: Do naturally occurring, hyperandrogenic (≥1 SD of population mean testosterone, T) female rhesus monkeys exhibit traits typical of women with polycystic ovary syndrome (PCOS)? SUMMARY ANSWER: Hyperandrogenic female monkeys exhibited significantly increased serum levels of androstenedione (A4), 17-hydroxyprogesterone (17-OHP), estradiol (E2), LH, antimullerian hormone (AMH), cortisol, 11-deoxycortisol and corticosterone, as well as increased uterine endometrial thickness and evidence of reduced fertility, all traits associated with PCOS...
March 1, 2017: Human Reproduction
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