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https://www.readbyqxmd.com/read/28816400/silica-modified-luminescent-lapo4-eu-lapo4-sio2-core-shell-nanorods-synthesis-structural-and-luminescent-properties
#1
Anees A Ansari
Monoclinic-type tetragonal LaPO4 :Eu (core) and LaPO4 :Eu@LaPO4 (core/shell) nanorods (NRs) were successfully prepared using a urea-based co-precipitation process under ambient conditions. An amorphous silica layer was coated around the luminescent core/shell NRs via the sol-gel process to improve their solubility and colloidal stability in aqueous and non-aqueous media. The prepared nano-products were systematically characterized by X-ray diffraction pattern, transmission electron microscopy, energy dispersive X-ray analysis, and FTIR, UV/Vis, and photoluminescence spectroscopy to examine their phase purity, crystal phase, surface chemistry, solubility and luminescence characteristics...
August 17, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/28812445/-half-a-woman-half-a-man-that-is-how-they-make-me-feel-a-qualitative-study-of-rural-jordanian-women-s-experience-of-infertility
#2
Mayada A Daibes, Reema R Safadi, Tarek Athamneh, Iman F Anees, Rose E Constantino
Infertility is a health problem encompassing physical, psychological and social consequences that may threaten women's quality of life. Few studies have been conducted in Jordan examining rural women's experiences of infertility. This study aimed to explore responses to infertility and its consequences in the Jordanian rural sociocultural context. Using a descriptive qualitative design, data were collected between April and September 2016 from a fertility clinic in a military hospital in Northern Jordan. Semi-structured interviews were conducted with 14 purposively selected Jordanian women...
August 16, 2017: Culture, Health & Sexuality
https://www.readbyqxmd.com/read/28809844/the-4-vessel-sampling-approach-to-integrative-studies-of-human-placental-physiology-in-vivo
#3
Ane M Holme, Maia B Holm, Marie C P Roland, Hildegunn Horne, Trond M Michelsen, Guttorm Haugen, Tore Henriksen
The human placenta is highly inaccessible for research while still in utero. The current understanding of human placental physiology in vivo is therefore largely based on animal studies, despite the high diversity among species in placental anatomy, hemodynamics and duration of the pregnancy. The vast majority of human placenta studies are ex vivo perfusion studies or in vitro trophoblast studies. Although in vitro studies and animal models are essential, extrapolation of the results from such studies to the human placenta in vivo is uncertain...
August 2, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28803731/purification-and-characterization-of-the-colicin-a-immunity-protein-in-detergent-micelles
#4
Ane Metola, Ana M Bouchet, Marian Alonso-Mariño, Tammo Diercks, Lena Mäler, Félix M Goñi, Ana R Viguera
The immunity proteins against pore-forming colicins represent a family of integral membrane proteins that reside in the inner membrane of producing cells. Cai, the colicin A immunity protein, was characterized here in detergent micelles by circular dichroism (CD), size exclusion chromatography, chemical cross-linking, nuclear magnetic resonance (NMR) spectroscopy, cysteine accessibility, and colicin A binding in detergent micelles. Bile-salt derivatives induced extensive protein polymerization that precluded further investigation...
August 10, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28797760/effect-of-left-ventricular-dysfunction-on-utilization-of-donor-hearts
#5
David Tryon, Nahidh W Hasaniya, Brice Jabo, Anees J Razzouk, Leonard L Bailey, David G Rabkin
BACKGROUND: In this study we investigated modern, non-utilization rates of potential cardiac donors with left ventricular dysfunction (LVD) to clarify this phenomenon's magnitude and the impact of recent studies suggesting these organs can be safely transplanted. METHODS: Using the United Network for Organ Sharing transplant database, we reviewed all donors evaluated between January 1, 2007 and June 30, 2014. Exclusion criteria included lack of consent and age <13 or >59 years...
July 19, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28795281/selective-a2a-receptor-antagonist-sch-58261-modulates-striatal-oxidative-stress-and-alleviates-toxicity-induced-by-3-nitropropionic-acid-in-male-wistar-rats
#6
Cristiani F Bortolatto, Angélica S Reis, Mikaela P Pinz, Guilherme T Voss, Renata L Oliveira, Ane G Vogt, Silvane Roman, Cristiano R Jesse, Cristiane Luchese, Ethel A Wilhelm
The aim of the present study was to investigate the effects of SCH58261, a selective adenosine A2A receptor antagonist, on striatal toxicity induced by 3-nitropropionic acid (3-NP) in rats. The experimental protocol consisted of 10 administrations (once a day) of SCH58261 (0.01 or 0.05 mg/kg/day, intraperitoneal, i.p.). From 7th to 10th day, 3-NP (20 mg/kg/day, i.p.) was injected 1 h after SCH58261 administration. Twenty-four hours after the last 3-NP injection, the body weight gain, locomotor activity (open-field test), motor coordination (rotarod test), striatal succinate dehydrogenase (SDH) activity and parameters linked to striatal oxidative status were evaluated in rats...
August 9, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28783742/validation-of-maternal-reported-pregnancy-and-birth-characteristics-against-the-medical-birth-registry-of-norway
#7
Svein Magne Skulstad, Jannicke Igland, Ane Johannessen, Randi Jacobsen Bertelsen, Marianne Lønnebotn, Ernst Reidar Omenaas, Cecilie Svanes, Francisco Gomez Real
Studies using mothers' self-reported information on birth and pregnancy characteristics are common, but the validity of such data is uncertain. We evaluated questionnaire data from the RHINE III study on reproductive health provided by 715 mothers from Bergen, Norway, about their 1629 births between 1967 and 2010, using the Medical Birth Registry of Norway (MBRN) as gold standard. Validity of dichotomous variables (gender, preterm birth [<37 weeks' gestation], postterm birth [>42 weeks' gestation], induction of labour, forceps delivery, vacuum delivery, caesarean section, were assessed by sensitivity, specificity, positive and negative predictive values (PPV and NPV) and Cohen's kappa...
2017: PloS One
https://www.readbyqxmd.com/read/28766195/association-of-ln-evaluation-with-survival-in-women-aged-70-years-or-older-with-clinically-node-negative-hormone-receptor-positive-breast-cancer
#8
Anees B Chagpar, Christos Hatzis, Lajos Pusztai, Michael P DiGiovanna, Meena Moran, Sarah Mougalian, Tara Sanft, Suzanne Evans, Erin Hofstatter, Lynn D Wilson, Donald R Lannin
BACKGROUND: Some suggest that lymph node (LN) evaluation not be performed routinely in women aged ≥70 years with clinically (c) LN-negative (-), hormone receptor (HR)-positive (+) breast cancer. We sought to determine the association of omission of LN evaluation on survival. METHODS: Patients who met the above criteria and were diagnosed from 2004 to 2012 were identified in the NCDB and SEER databases. Overall survival (OS) and breast cancer-specific survival (BCSS) were determined...
August 1, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28761800/pancreatic-kaposiform-hemangioendothelioma-not-responding-to-sirolimus
#9
Paloma Junco Triana, Mariela Dore, Vanesa Cerezo Nuñez, Javier Gomez Jimenez, Miriam Ferrero Miguel, Mercedes González Díaz, Joan Novo Ricardo, Ane Andres, Manuel Lopez Santamaria, Juan Carlos Lopez-Gutierrez
Background  Kaposiform hemangioendothelioma (KHE) is a vascular tumor frequently associated with Kasabach-Merritt phenomenon (KMP), characterized by severe thrombocytopenia and consumptive coagulopathy. Visceral involvement in KHE is rare. In our recent experience, sirolimus has shown to be an effective treatment in cutaneous KHE, becoming indeed the treatment of choice in KMP. We report a case of pancreatic KHE associated with KMP and refractory to sirolimus. Case Report  A 4-month-old infant is referred for obstructive jaundice (10 mg/dL conjugated bilirubin) secondary to vascular pancreatic tumor...
January 2017: European Journal of Pediatric Surgery Reports
https://www.readbyqxmd.com/read/28752158/contextual-social-inequities-and-occurrence-of-dental-caries-in-adolescents-a-systematic-review
#10
Johnys Nóbrega, Eugênia Dantas, Julio Cesar Ferreira-Filho, Nayara Limão, Ana Carolina Rodrigues-de-Melo, Ane Polline Protásio, Ana Maria Valença, Bianca Santiago
PURPOSE: This systematic review sought to determine whether there is consistent evidence of the association between contextual social inequities and the occurrence of dental caries in adolescents. MATERIALS AND METHODS: An electronic survey in ISI Web of Science, SCOPUS, MEDLINE, LILACS, Cochrane Library, and SciELO databases was performed, establishing a specific search strategy in each of them. Only analytical articles in which social indicators were measured at the contextual level published up to December 2015 were included...
July 27, 2017: Oral Health & Preventive Dentistry
https://www.readbyqxmd.com/read/28742127/tpc1-is-an-important-zn-ii-2cys6-transcriptional-regulator-required-for-polarized-growth-and-virulence-in-the-rice-blast-fungus
#11
Rita Galhano, Adriana Illana, Lauren S Ryder, Julio Rodríguez-Romero, Marie Demuez, Muhammad Badaruddin, Ana Lilia Martinez-Rocha, Darren M Soanes, David J Studholme, Nicholas J Talbot, Ane Sesma
The establishment of polarity is a critical process in pathogenic fungi, mediating infection-related morphogenesis and host tissue invasion. Here, we report the identification of TPC1 (Transcription factor for Polarity Control 1), which regulates invasive polarized growth in the rice blast fungus Magnaporthe oryzae. TPC1 encodes a putative transcription factor of the fungal Zn(II)2Cys6 family, exclusive to filamentous fungi. Tpc1-deficient mutants show severe defects in conidiogenesis, infection-associated autophagy, glycogen and lipid metabolism, and plant tissue colonisation...
July 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28738939/can-tumor-biology-predict-occult-multifocal-disease-in-breast-cancer-patients
#12
Anees B Chagpar, Ali F Cicek, Malini Harigopal
The SHAVE trial is a prospective trial in which 235 women with stage 0 to 3 disease undergoing partial mastectomy were randomized intraoperatively to either have cavity shave`s (CSMs) taken at the time of initial surgery or not. In this study, 9 of the 76 patients (11.8%) with initially negative margins randomized to the "shave" group had occult cancers found in the CSM. Seven of these patients had sufficient primary tumor tissue available for further analysis. These patients were age and stage matched in a 1:2 ratio to other patients in the trial who had no further disease found in their CSM...
July 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28737842/network-meta-analysis-of-disconnected-networks-how-dangerous-are-random-baseline-treatment-effects
#13
Audrey Béliveau, Sarah Goring, Robert W Platt, Paul Gustafson
In network meta-analysis, the use of fixed baseline treatment effects (a priori independent) in a contrast-based approach is regularly preferred to the use of random baseline treatment effects (a priori dependent). That is because, often, there is not aneed to model baseline treatment effects which carries the risk of model misspecification. However, in disconnected networks, fixed baseline treatment effects do not work (unless extra assumptions are made) as there is not enough information in the data to update the prior distribution on the contrasts between disconnected treatments...
July 24, 2017: Research Synthesis Methods
https://www.readbyqxmd.com/read/28736249/identifying-intermediate-risk-candidates-for-active-surveillance-of-prostate-cancer
#14
Richard Savdie, Jonathan Aning, Alan I So, Peter C Black, Martin E Gleave, S Larry Goldenberg
PURPOSE: Although already established for very-low and low-risk (LR) prostate cancer (PCa), controversy remains around offering active surveillance (AS) to men with intermediate-risk (IR) PCa. As IR represents a broad spectrum of disease biology, there is a critical need to define eligibility criteria that will enable both patient and physician to accept AS as the best balance of competing risks. In this study, we aimed to identify predictors of progression to enable optimal patient selection...
July 20, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28736057/regional-variation-in-breast-cancer-surgery-results-from-the-national-cancer-database-ncdb
#15
Alexander S Chiu, Princess Thomas, Brigid K Killelea, Nina Horowitz, Anees B Chagpar, Donald R Lannin
BACKGROUND: Early studies have shown significant regional differences in the utilization of breast-conserving therapy (BCT) and mastectomy with reconstruction. It is expected that with the passage of time and the adoption of national treatment guidelines, these disparities would disappear. METHODS: Patients with non-metastatic breast cancer who underwent surgery between 2004 and 2013 were analyzed using the National Cancer Database (NCDB). Trends in BCT and reconstruction were evaluated and multivariate logistic regression performed...
July 18, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28733659/thickness-dependence-of-anomalous-nernst-coefficient-and-longitudinal-spin-seebeck-effect-in-ferromagnetic-nixfe100-x-films
#16
Harsha Kannan, Xin Fan, Halise Celik, Xiufeng Han, John Q Xiao
Spin Seebeck effect (SSE) measured for metallic ferromagnetic thin films in commonly used longitudinal configuration contains the contribution from anomalous Nernst effect (ANE). The ANE is considered to arise from the bulk of the ferromagnet (FM) and the proximity-induced FM boundary layer. We fabricate a FM alloy with zero Nernst coefficient to mitigate the ANE contamination of SSE and insert a thin layer of Cu to separate the heavy metal (HM) from the FM to avoid the proximity contribution. These modifications to the experiment should permit complete isolation of SSE from ANE in the longitudinal configuration...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28730880/response-of-narrow-qrs-tachycardia-to-a-premature-ventricular-ectopic-rhythm-what-is-the-mechanism
#17
Krishna Kumar Mohanan Nair, Anees Thajudeen, Narayanan Namboodiri, Ajitkumar Valaparambil
No abstract text is available yet for this article.
July 21, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28723254/possible-error-in-the-danish-version-of-the-who-quality-of-life-whoqol-bref-questionnaire
#18
Ane Søndergaard Thomsen, Per Bech
BACKGROUND: The WHOQOL-BREF is widely used to measure quality of life. AIMS: The goal of the present study was to use the questionnaire in a doctoral study. METHODS: We studied all the instructions provided by the WHO. RESULTS: In the Danish version of the WHOQOL-BREF there is a discrepancy between the negatively phrased question 9 and both the syntax file and the verbal instructions for coding the data provided by the WHO...
July 19, 2017: Nordic Journal of Psychiatry
https://www.readbyqxmd.com/read/28718772/performance-evaluation-of-macaco-a-multilayer-compton-camera
#19
Enrique Muñoz, John Barrio, Ane Etxebeste, Pablo Garcia Ortega, Carlos Lacasta, Josep Francisco Oliver, Carles Solaz, Gabriela Llosa
Compton imaging devices have been proposed and studied for a wide range of applications. We have developed a Compton camera prototype which can be operated with two or three detector layers based on monolithic lanthanum bromide (LaBr3) crystals coupled to silicon photomultipliers (SiPMs), to be used for proton range verification in hadron therapy. In this work, we present the results obtained with our prototype in laboratory tests with radioactive sources and in simulation studies...
July 18, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28715600/ultrastructural-study-of-the-neural-microcircuits-in-the-sensory-epithelium-of-the-paratympanic-organ-of-the-chicken
#20
F Giannessi, L Ryskalin, R Ruffoli
The paratympanic organ (PTO) is a sensory organ located in the medial wall of the tympanic cavity of birds. The organ looks like a small tapering vesicle, and is equipped with a sensory epithelium formed by supporting cells (SCs) and Type II hair cells (Type II-HCs). The function of the PTO has not yet been precisely defined. The prevailing current hypothesis is that the PTO assesses the air pressure exerted on the external surface of the tympanic membrane. The PTO could may thus function as a barometer and, in flying birds, also as an altimeter...
July 1, 2017: Archives Italiennes de Biologie
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