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https://www.readbyqxmd.com/read/29166084/on-the-electron-density-localization-in-elemental-cubic-ceramic-and-fcc-transition-metals-by-means-of-a-localized-electrons-detector
#1
Yosslen Aray, Ricardo Paredes, Luis Javier Álvarez, Alejandro Martiz
The electron density localization in insulator and semiconductor elemental cubic materials with diamond structure, carbon, silicon, germanium, and tin, and good metallic conductors with face centered cubic structure such as α-Co, Ni, Cu, Rh, Pd, Ag, Ir, Pt, and Au, was studied using a localized electrons detector defined in the local moment representation. Our results clearly show an opposite pattern of the electron density localization for the cubic ceramic and transition metal materials. It was found that, for the elemental ceramic materials, the zone of low electron localization is very small and is mainly localized on the atomic basin edges...
June 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29156134/organic-ice-resists
#2
William Tiddi, Anna Elsukova, Hoa Thanh Le, Pei Liu, Marco Beleggia, Anpan Han
Electron-beam lithography (EBL) is the backbone technology for patterning nanostructures and manufacturing nanodevices. It involves processing and handling synthetic resins in several steps, each requiring optimization and dedicated instrumentation in cleanroom environments. Here, we show that simple organic molecules, e.g. alcohols, condensed to form thin-films at low temperature demonstrate resist-like capabilities for EBL applications and beyond. The entire lithographic process takes place in a single instrument, and avoids exposing chemicals to the user and the need of cleanrooms...
November 20, 2017: Nano Letters
https://www.readbyqxmd.com/read/29156107/hemodynamic-force-triggers-rapid-netosis-within-sterile-thrombotic-occlusions
#3
X Yu, J Tan, S L Diamond
BACKGROUND: Neutrophil extracellular traps (NETs) are released when neutrophils encounter infectious pathogens, especially during sepsis. Additionally, NETosis occurs during venous and arterial thrombosis, disseminated intravascular coagulation, and trauma. OBJECTIVE: We tested if hemodynamic forces trigger NETosis during sterile thrombosis. METHODS: NETs were imaged with Sytox-green during microfluidic perfusion of Factor XIIa-inhibited or thrombin-inhibited human whole blood over fibrillar collagen (± tissue factor)...
November 20, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/29155909/dissociative-ionisation-of-adamantane-a-combined-theoretical-and-experimental-study
#4
Alessandra Candian, Jordy Bouwman, Patrick Hemberger, Andras Bodi, Alexander G G M Tielens
Diamond nanoparticles, or nanodiamonds, are intriguing carbon-based materials which, maybe surprisingly, are the most abundant constituent of presolar grains. While the spectroscopic properties of even quite large diamondoids have already been explored, little is known about their unimolecular fragmentation processes. In this paper we characterise the dissociative ionisation of adamantane (C10H16) - the smallest member of the diamondoid family - utilising imaging Photoelectron Photoion Coincidence (iPEPICO) spectroscopy and Density Functional Theory (DFT) calculations...
November 20, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29152509/of-diamond-surfaces-red-light-photobiomodulation-and-fertility-lessons-from-the-laboratory
#5
EDITORIAL
Raymond J Lanzafame
No abstract text is available yet for this article.
October 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29152507/editorial-on-genesis-on-diamonds-ii-contact-with-diamond-enhances-human-sperm-performance-by-300
#6
EDITORIAL
Stepan S Batsanov, Andrei S Batsanov
No abstract text is available yet for this article.
October 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29150195/anatomic-findings-associated-with-epispadias-in-boys-implications-for-surgical-management-and-urinary-continence
#7
M Cendron, P S Cho, M Pennison, I Rosoklija, D A Diamond, J G Borer
INTRODUCTION: Pre-operative physical examination of male epispadias allows for classification of epispadias level as glanular (GE), penile (PE) or penopubic (PPE), and for delineation of anatomic anomalies. The incidence of associated extragenital abnormalities, such as vesicoureteral reflux (VUR), bladder neck (BN) abnormality and abnormal pubic diastasis (PD), and their impact on urinary continence has not yet been systematically studied. OBJECTIVE: The goal of this study was to evaluate whether the more proximal level of epispadias correlated with associated extragenital anatomic anomalies seen on initial imaging or endoscopic evaluation, and whether these pre-operative findings contributed to subsequent surgical management and impacted on achieving urinary continence...
October 26, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29148718/atomic-layer-deposition-of-single-crystalline-beo-epitaxially-grown-on-gan-substrates
#8
Seung Min Lee, Jung Hwan Yum, Seonno Yoon, Eric S Larsen, Woo Chul Lee, Seong Keun Kim, Shahab Shervin, Weijie Wang, Jae-Hyun Ryou, Christopher W Bielawski, Jungwoo Oh
We have developed a beryllium oxide (BeO) thin film process by atomic layer deposition (ALD) and grown a single-crystal BeO on a gallium nitride (GaN) substrate for the first time. BeO has a higher thermal conductivity than all other metals except Cu, Ag, and Au, and it has a higher bandgap energy and dielectric constant than SiO2 and Al2O3. As an electrical insulator, diamond is the only material on Earth whose thermal conductivity exceeds that of BeO. Despite these advantages, there is no chemical vapor deposition technique for BeO thin film deposition, and thus, it is not used in nanoscale semiconductor device processing...
November 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29148056/the-list-experiment-for-measuring-abortion-what-we-know-and-what-we-need
#9
Heidi Moseson, Emily Treleaven, Caitlin Gerdts, Nadia Diamond-Smith
Measuring abortion incidence and prevalence is often difficult because of under-reporting and other biases, complicated research designs, and other issues. Recently, family planning researchers have introduced a new method called the list experiment, adopted from political science and economics, to measure abortion. Three completed studies and at least four studies currently underway use this method to measure abortion in several countries. We discuss the lessons learned from completed studies, when the list experiment may and may not be appropriate, and open questions regarding the use of the list experiment for abortion research...
November 17, 2017: Studies in Family Planning
https://www.readbyqxmd.com/read/29147747/isomers-of-tris-chloropropyl-phosphate-tcpp-in-technical-mixtures-and-environmental-samples
#10
Jimmy W Truong, Miriam L Diamond, Paul A Helm, Liisa M Jantunen
Tris(chloropropyl) phosphate (TCPP) is an environmentally abundant organophosphate ester (OPE). TCPP is comprised of four isomers with seven possible structures, eight CAS numbers, and even more common names. A review of 54 studies reporting one or more TCPP isomers confirmed that the most abundant and most often reported TCPP isomer was tris(2-chloro-1-methylethyl) phosphate, also known as tris(chloroisopropyl) phosphate (TCiPP, referred to hereafter as TCPP1). Full-scan gas chromatography-mass spectrometry (GC-MS) was used to identify the other three isomers numbered here according to their elution order on a non-polar GC column (DB-5): bis(2-chloro-1-methylethyl) (2-chloropropyl) phosphate (TCPP2), bis(2-chloropropyl)(2-chloro-1-methylethyl) phosphate (TCPP3), and tris(2-chloropropyl) phosphate (TCPP4)...
November 16, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29147080/effect-of-the-ginger-derivative-6-shogaol-on-ferritin-levels-in-patients-with-low-to-intermediate-1-risk-myelodysplastic-syndrome-a-small-investigative-study
#11
Terry Golombick, Terrence H Diamond, Arumugam Manoharan, Rajeev Ramakrishna, Vladimir Badmaev
Background: Myelodysplastic syndrome (MDS) is a heterogeneous group of clonal stem cell disorders characterized by dysplastic and ineffective hematopoiesis and peripheral cytopenias. Elevated serum ferritin (SF) is often observed in nontransfused, lower risk MDS. It has been reported that ineffective erythropoiesis enhances iron absorption in MDS through downregulation of hepcidin and its prohormones such that SF rises. Aim: To determine the effect of 6-shogaol, a dehydration derivative of ginger, known to have hepatoprotective and chemotherapeutic activity, on 6 early-stage, transfusion-independent patients with MDS, 3 of whom had raised levels of SF...
2017: Clinical Medicine Insights. Blood Disorders
https://www.readbyqxmd.com/read/29146948/a-rapid-response-ultrasensitive-biosensor-for-influenza-virus-detection-using-antibody-modified-boron-doped-diamond
#12
Dawid Nidzworski, Katarzyna Siuzdak, Paweł Niedziałkowski, Robert Bogdanowicz, Michał Sobaszek, Jacek Ryl, Paulina Weiher, Mirosław Sawczak, Elżbieta Wnuk, William A Goddard, Andrés Jaramillo-Botero, Tadeusz Ossowski
According to the World Health Organization (WHO), almost 2 billion people each year are infected worldwide with flu-like pathogens including influenza. This is a contagious disease caused by viruses belonging to the family Orthomyxoviridae. Employee absenteeism caused by flu infection costs hundreds of millions of dollars every year. To successfully treat influenza virus infections, detection of the virus during the initial development phase of the infection is critical, when tens to hundreds of virus-associated molecules are present in the patient's pharynx...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29146718/deep-brain-nuclei-t1-shortening-after-gadobenate-dimeglumine-in-children-influence-of-radiation-and-chemotherapy
#13
S Kinner, T B Schubert, R J Bruce, S L Rebsamen, C A Diamond, S B Reeder, H A Rowley
BACKGROUND AND PURPOSE: Intrinsic T1-hyperintense signal has recently been reported in the deep gray nuclei on brain MR imaging after multiple doses of gadolinium-based contrast agents. Most reports have included adult patients and excluded those undergoing radiation or chemotherapy. We investigated whether T1 shortening is also observed in children and tried to determine whether radiochemotherapy is a risk factor for this phenomenon. MATERIALS AND METHODS: In this single-center retrospective study, we reviewed clinical charts and images of all patients 18 years of age or younger with ≥4 gadobenate dimeglumine-enhanced MRIs for 6 years...
November 16, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29144007/analysis-of-surface-roughness-fracture-toughness-and-weibull-characteristics-of-different-framework-veneer-dental-ceramic-assemblies-after-grinding-polishing-and-glazing
#14
Guillermo Pradíes, Laura Godoy-Ruiz, Mutlu Özcan, Isabel Moreno-Hay, Francisco Martínez-Rus
PURPOSE: To compare the surface roughness and biaxial flexural strength of dental ceramics obtained after chairside surface modification by mechanical polishing procedures, versus laboratory reglazing. MATERIALS AND METHODS: Discs (16 × 1.5 ± 1.6 mm) (N = 90) of various framework-veneering combinations were fabricated: D/FC: lithium disilicate/feldspathic ceramic; Z/AL: zirconium dioxide/aluminous ceramic; N/FC: noble alloy/feldspathic ceramic; N/FF: noble alloy feldspathic with fluorapatite; B/FC: base alloy/feldspathic ceramic; B/FF: base alloy/feldspathic ceramic with fluorapatite...
November 16, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29143891/in-search-of-the-ideal-promotility-agent-optimal-use-of-currently-available-promotility-agents-for-nutrition-therapy-of-the-critically-ill-patient
#15
REVIEW
Sarah J Diamond, Endashaw Omer, Laszlo Kiraly
PURPOSE OF REVIEW: Enteral nutrition therapy is essential in the management of critically ill patients. Prokinetic agents have been used successfully to aid in the delivery of nutrition and improve feeding tolerance in patients in the intensive care unit (ICU). The aim of this report is to review the existing promotility agents available for use in the critically ill as well as outline the role of potential investigative drugs in order to provide a guide to the management of this difficult and important clinical dilemma...
November 16, 2017: Current Gastroenterology Reports
https://www.readbyqxmd.com/read/29143668/women-s-empowerment-and-experiences-of-mistreatment-during-childbirth-in-facilities-in-lucknow-india-results-from-a-cross-sectional-study
#16
Nadia Diamond-Smith, Emily Treleaven, Nirmala Murthy, May Sudhinaraset
BACKGROUND: Recent evidence has found widespread reports of women experiencing abuse, neglect, discrimination, and poor interpersonal care during childbirth around the globe. Empowerment may be a protective mechanism for women against facility mistreatment during childbirth. The majority of previous research on mistreatment during childbirth has been qualitative in nature. METHODS: In this analysis, we use quantitative data from 392 women who recently gave birth in a facility in the slums of Lucknow, India, to explore whether measures of women's empowerment are associated with their experiences of mistreatment at their last childbirth...
November 8, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29143138/-pseudarthroses-of-the-long-bones
#17
J Everding, S Roßlenbroich, M J Raschke
Pseudarthrosis development is dependent on the presence of individual risk factors in approximately 10% as a result of fractures and are more frequently located in the region of the long bones. The development of non-union regularly results in prolonged pain and reduced functionality of the affected limb. The resulting clearly increased socioeconomic costs are caused by the complex operative treatment strategies and increased indirect costs, which include lost wages, social benefits and compensation. Altogether, non-unions require a differentiated therapeutic treatment strategy...
November 15, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/29141146/the-effect-of-pressure-and-temperature-on-mid-infrared-sensing-of-dissolved-hydrocarbons-in-water
#18
Charles Heath, Matthew B Myers, Bobby Pejcic
Attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy using a polymer coated internal reflection element/waveguide is an established sensor platform for the detection of a range of organic and hydrocarbon molecules dissolved in water. The polymer coating serves two purposes: to concentrate hydrocarbons from the aqueous phase and to exclude water along with other interfering molecules from the surface of the internal reflection element. Crucial to reliable quantification and analytical performance is the calibration of the ATR-FTIR sensor which is commonly performed in water under mild ambient conditions (i...
November 15, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29140749/pharmacists-as-vaccinators-an-analysis-of-their-experiences-and-perceptions-of-their-new-role
#19
Sandra Gerges, Elizabeth Peter, Susan K Bowles, Shelley Diamond, Lucie Marisa Bucci, Anne Resnick, Anna Taddio
OBJECTIVES: In 2012, Ontario pharmacists were granted immunization privileges to administer influenza vaccines to the public. This study explored the experiences and practices of pharmacist vaccinators and the impact of vaccination pain on their practice. METHODS: Semi-structured interviews were conducted with 12 pharmacists in the Greater Toronto Area. Transcribed interview data were coded and analyzed via thematic analysis. KEY FINDINGS: Data analysis revealed 4 main themes: 1) expanded scope of practice as an enhancement and challenge to relationships; 2) professional satisfaction and workload demands; 3) knowledge and attitudes regarding pain and fear; 4) practices regarding pain and fear management...
November 15, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29140098/surface-roughness-of-methacrylate-and-silorane-based-composites-after-finishing-and-polishing-procedures
#20
M Jacinta Santos, Heleine Maria Chagas Rêgo, Leticia Linares, Amin S Rizkalla, Gildo C Santos
OBJECTIVE: To compare the effect of surface finishing and polishing protocols on the surface roughness (Ra) of methacrylate-based and silorane-based resin composites. METHODS AND MATERIALS: Fifty specimens (5 mm x 2 mm) of each composite material were prepared using a split mold: Filtek™ Supreme Ultra (3M ESPE), Tetric EvoCeram® (Ivoclar Vivadent), Tetric Ceram™ HB (Ivoclar Vivadent), and Filtek™ LS Low Shrink (3M ESPE). Specimens were divided into five groups (n = 10) according to the following procedures: G1 - 15-µm fine diamond bur (FDB); G2 - 15-µm FDB followed by a 20-fluted tungsten carbide bur; G3 - 15-µm FDB followed by diamond-impregnated micropolishing points (D-FINE Double Diamond Polishing System, Clinician's Choice); G4 - 15-µm FDB followed by diamond-impregnated micropolishing points (Flame Point Pre-polisher and Shine, Brassseler USA); and G5 - 15-µm FDB followed by the application of a surface sealer (PermaSeal®, Ultradent Products, Inc...
November 2017: Compendium of Continuing Education in Dentistry
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