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https://www.readbyqxmd.com/read/29793171/compositional-engineering-of-acceptors-for-highly-efficient-bulk-heterojunction-hybrid-organic-solar-cells
#1
S Amber Yousaf, M Ikram, S Ali
The wet chemical synthesis of chromium oxide (Cr2 O3 ) nanoparticles (NPs) and its application in active layer of inverted bulk heterojunction organic solar cells is documented in this research. Chromium oxide NPs of 10-30 nm size range having a band gap of 2.9 eV were successfully synthesized. These NPs were used in inverted organic solar cells in amalgamation with P3HT:PCBM and PTB7:PCBM polymers. The fabricated hybrid devices improves PCE significantly for P3HT:PCBM and PTB7:PCBM systems. The photophysical energy levels, optoelectrical properties and microscopic images have been systematically studied for the fabricated devices...
May 21, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29792317/in-situ-reduction-from-uranyl-ion-into-a-tetravalent-uranium-trimer-and-hexamer-featuring-ion-exchange-properties-and-the-alexandrite-effect
#2
Jian Lin, Zenghui Yue, Mark A Silver, Meiying Qie, Xiaomei Wang, Wei Liu, Xiao Lin, Hong-Liang Bao, Lin-Juan Zhang, Shuao Wang, Jian-Qiang Wang
By utilizing zinc amalgam as an in situ reductant and pH regulator, mild hydrothermal reaction between UO2 (CH3 COO)2 ·2H2 O, H2 SO4 , and Cs2 CO3 or between UO2 (CH3 COO)2 ·2H2 O, C2 H4 (SO3 H)2 , and K2 CO3 yielded a novel cesium UIV sulfate trimer Cs4 [U3 O(SO4 )7 ]·2.2H2 O (1) and a new potassium UIV disulfonic hexamer K[U6 O4 (OH)5 (H2 O)5 ][C2 H4 (SO3 )2 ]6 ·6H2 O (2), respectively. Compound 1 features a lamellar structure with a honeycomb lattice, and it represents an unprecedented trimeric UIV cluster composed of purely inorganic moieties...
May 24, 2018: Inorganic Chemistry
https://www.readbyqxmd.com/read/29790935/intake-and-feed-utilization-in-two-breeds-of-pregnant-beef-cows-fed-forages-with-high-fiber-concentrations
#3
M Jardstedt, A Hessle, P Nørgaard, L Frendberg, E Nadeau
Hereford and Charolais beef cows (n = 24 per breed) were used to study the effect of breed and to evaluate how late cut reed canarygrass (RC) and whole-crop oats plus urea (WCO) compared to late cut timothy (TG) with respect to feed intake and digestibility, rumination time, fecal particle size (PS) distribution, N excretion, and ruminal microbial CP production (MCP). The TG and RC were cut at flowering and WCO at hard dough stage of maturity. Cows were group-housed, six groups per breed, and fed the three diets ad libitum in three periods...
May 22, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29787972/investigation-by-direct-infusion-esi-ms-and-gc-ms-of-an-alleged-leuckart-route-specific-impurity-of-methamphetamine
#4
Ethan M McBride, Guido F Verbeck
Impurity profiling has been used as a useful tool for analyzing nearly every drug class currently known on the illicit market. Impurities present within seized samples have the potential to determine source of origin, route of synthesis used, as well as provide a useful clue into the potential reaction mechanisms that are present for each synthetic procedure. Perhaps the most well studied of these impurity profiles exists for methamphetamine, including information to more than one route of synthesis. Within the present study, a complete synthesis of methamphetamine was performed, including a reductive amination of phenylpropanone (P2P) using methylamine hydrochloride and sodium triacetoxyborohydride (STAB) rather than the conventional aluminum mercury amalgam commonly found in the literature...
May 16, 2018: Forensic Science International
https://www.readbyqxmd.com/read/29787290/amalgamation-of-polyphenols-and-probiotics-induce-health-promotion
#5
Arpita Banerjee, Pubali Dhar
The residing microbiome with its vast repertoire of genes provide distinctive properties to the host by which they can degrade and utilise nutrients that otherwise pass the gastro-intestinal tract unchanged. The polyphenols in our diet have selective growth promoting effects which is of utmost importance as the state of good health has been linked to dominance of particular microbial genera. The polyphenols in native form might more skilfully exert anti-oxidative and anti-inflammatory properties but in a living system it is the microbial derivatives of polyphenol that play a key role in determining health outcome...
May 22, 2018: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29786707/biocompatible-alkyl-cyanoacrylates-and-their-derivatives-as-bio-adhesives
#6
REVIEW
Jay M Korde, Balasubramanian Kandasubramanian
Cyanoacrylate adhesives and their homologues have elicited interest over the past few decades owing to their applications in the biomedical sector, extending from tissue adhesives to scaffolds to implants to dental material and adhesives, because of their inherent biocompatibility and ability to polymerize solely with moisture, thanks to which they adhere to any substrate containing moisture such as the skin. The ability to tailor formulations of alkyl cyanoacrylate to form derivative compounds to meet application requirements along with their biodegradability in conjunction with their inherent biocompatibility make them highly sought after candidates in the biomedical sector...
May 22, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29782246/precision-medicine-and-radiogenomics-in-breast-cancer-new-approaches-toward-diagnosis-and-treatment
#7
Katja Pinker, Joanne Chin, Amy N Melsaether, Elizabeth A Morris, Linda Moy
Precision medicine is medicine optimized to the genotypic and phenotypic characteristics of an individual and, when present, his or her disease. It has a host of targets, including genes and their transcripts, proteins, and metabolites. Studying precision medicine involves a systems biology approach that integrates mathematical modeling and biology genomics, transcriptomics, proteomics, and metabolomics. Moreover, precision medicine must consider not only the relatively static genetic codes of individuals, but also the dynamic and heterogeneous genetic codes of cancers...
June 2018: Radiology
https://www.readbyqxmd.com/read/29779218/an-analysis-of-the-timing-and-materials-associated-with-pulp-disease-following-restorative-dental-treatment
#8
J B Yong, S Sivarajan, P V Abbott
AIM: To assess whether the timing of pulp disease after tooth restoration was associated with type of restorative dental material used, extent of the restoration, or tooth type. METHODOLOGY: A comprehensive search and analysis of data using the Titanium Oral Health Management software program at The Oral Health Centre of Western Australia was performed to correlate procedural codes for teeth that had restorations placed and subsequently developed pulp disease requiring endodontic treatment or extraction from 1st January 2009 to 31st December 2013...
May 19, 2018: International Endodontic Journal
https://www.readbyqxmd.com/read/29777524/mercury-involvement-in-neuronal-damage-and-in-neurodegenerative-diseases
#9
REVIEW
Veronica Lanza Cariccio, Annalisa Samà, Placido Bramanti, Emanuela Mazzon
Neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, and multiple sclerosis are characterized by a chronic and selective process of neuronal cell death. Although the causes of neurodegenerative diseases remain still unknown, it is now a well-established idea that more factors, such as genetic, endogenous, and environmental, are involved. Among environmental causes, the accumulation of mercury, a heavy metal considered a toxic agent, was largely studied as a probable factor involved in neurodegenerative disease course...
May 18, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29767382/direct-pulp-capping-in-primary-molars-using-a-resin-modified-portland-cement-based-material-theracal-compared-to-mta-with-12-month-follow-up-a-randomised-clinical-trial
#10
L Erfanparast, P Iranparvar, A Vafaei
AIM: This study was to compare the success of resin-modified Portland cement-based material (TheraCal) with MTA in direct pulp capping (DPC) of primary molars. METHODS: Symmetrical bilateral primary molars (92) from 46 healthy subjects aged 5-7 years were included in this split-mouth randomised clinical trial. DPC for small non-contaminated pulp exposures using either TheraCal or MTA were randomly performed in symmetrical molars. Thereafter, teeth were restored with amalgam...
May 16, 2018: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/29763965/proximal-restoration-increases-the-risk-of-clinical-attachment-loss
#11
Kauê Collares, Flávio F Demarco, Bernardo L Horta, Marcos B Correa
AIM: To estimate the effect of proximal direct restorations in the adjacent periodontal tissues in adults from a birth cohort. MATERIALS AND METHODS: A representative sample (n = 539) of all 5,914 births occurring in Pelotas, Brazil in 1982 was prospectively investigated, being clinical attachment loss (CAL), probing depth (PD) and bleeding on probing (BOP) assessed at 31 yrs-old. For each site, tooth surface was evaluated as sound or restored, being the restoration extension (subgingival or supragingival) and restoration material (composite and amalgam) considered...
May 15, 2018: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29763354/randomized-controlled-trial-of-pulpotomy-in-primary-molars-using-mta-and-formocresol-compared-to-3mixtatin-a-novel-biomaterial
#12
Zahra Jamali, Vajiheh Alavi, Ebrahim Najafpour, Naser Asl Aminabadi, Sajjad Shirazi
OBJECTIVE: This study was conducted to compare the efficacy of 3Mixtatin (a combination of simvastatin and 3Mix antibiotic) with MTA and Formocresol for the pulpotomy of primary molars. STUDY DESIGN: 114 children aged 3-6 years old with 150 primary molars were randomly allocated to three groups. MTA, Formocresol or 3Mixtatin were used for Pulpotomies. Hard setting zinc oxide eugenol was used to cover these materials. The teeth were restored with amalgam. Blinded radiographic and clinical examinations were conducted at 6, 12 and 24 months after treatment for the presence of pain, tenderness to palpation and percussion, sinus tract, swelling, presence of internal or external root resorption, inter-radicular radiolucency, and periapical lesion...
May 15, 2018: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/29757429/allofinder-a-strategy-for-allosteric-modulator-discovery-and-allosterome-analyses
#13
Min Huang, Kun Song, Xinyi Liu, Shaoyong Lu, Qiancheng Shen, Renxiao Wang, Jingze Gao, Yuanyuan Hong, Qian Li, Duan Ni, Jianrong Xu, Guoqiang Chen, Jian Zhang
Allostery tweaks innumerable biological processes and plays a fundamental role in human disease and drug discovery. Exploration of allostery has thus been regarded as a crucial requirement for research on biological mechanisms and the development of novel therapeutics. Here, based on our previously developed allosteric data and methods, we present an interactive platform called AlloFinder that identifies potential endogenous or exogenous allosteric modulators and their involvement in human allosterome. AlloFinder automatically amalgamates allosteric site identification, allosteric screening and allosteric scoring evaluation of modulator-protein complexes to identify allosteric modulators, followed by allosterome mapping analyses of predicted allosteric sites and modulators in human proteome...
May 11, 2018: Nucleic Acids Research
https://www.readbyqxmd.com/read/29756355/development-and-validation-of-a-high-quality-composite-real-world-mortality-endpoint
#14
Melissa D Curtis, Sandra D Griffith, Melisa Tucker, Michael D Taylor, William B Capra, Gillis Carrigan, Ben Holzman, Aracelis Z Torres, Paul You, Brandon Arnieri, Amy P Abernethy
OBJECTIVE: To create a high-quality electronic health record (EHR)-derived mortality dataset for retrospective and prospective real-world evidence generation. DATA SOURCES/STUDY SETTING: Oncology EHR data, supplemented with external commercial and US Social Security Death Index data, benchmarked to the National Death Index (NDI). STUDY DESIGN: We developed a recent, linkable, high-quality mortality variable amalgamated from multiple data sources to supplement EHR data, benchmarked against the highest completeness U...
May 14, 2018: Health Services Research
https://www.readbyqxmd.com/read/29755930/parents-attitudes-towards-topical-fluoride-and-vaccines-for-children-are-these-distinct-or-overlapping-phenomena
#15
Richard M Carpiano, Donald L Chi
Despite attention paid to parental refusal of child vaccines, the phenomenon of topical fluoride refusal is poorly understood. We examine the extent to which parent attitudes and Internet use regarding topical fluoride treatment and vaccines may overlap and, in turn, uniquely or distinctly correlate with fluoride and vaccine refusal for the child. In 2017, we analyzed data collected from 2011 to 12 for 361 children from three Washington state dental clinics. The instrument included analogous measures of topical fluoride and vaccine safety concerns, perceived severity of preventable cavities/disease, and Internet use for fluoride/vaccine information; and measures of non-fluoridated toothpaste use, attitudes towards dental x-rays and amalgam and composite fillings...
June 2018: Preventive Medicine Reports
https://www.readbyqxmd.com/read/29755618/wear-of-resin-composites-current-insights-into-underlying-mechanisms-evaluation-methods-and-influential-factors
#16
REVIEW
Akimasa Tsujimoto, Wayne W Barkmeier, Nicholas G Fischer, Kie Nojiri, Yuko Nagura, Toshiki Takamizawa, Mark A Latta, Masashi Miazaki
The application of resin composites in dentistry has become increasingly widespread due to the increased aesthetic demands of patients, improvements in the formulation of resin composites, and the ability of these materials to bond to tooth structures, together with concerns about dental amalgam fillings. As resistance to wear is an important factor in determining the clinical success of resin composite restoratives, this review article defines what constitutes wear and describes the major underlying phenomena involved in this process...
May 2018: Japanese Dental Science Review
https://www.readbyqxmd.com/read/29753249/uncertainties-and-implications-of-applying-aggregated-data-for-spatial-modelling-of-atmospheric-ammonia-emissions
#17
S Hellsten, U Dragosits, C J Place, A J Dore, Y S Tang, M A Sutton
Ammonia emissions vary greatly at a local scale, and effects (eutrophication, acidification) occur primarily close to sources. Therefore it is important that spatially distributed emission estimates are located as accurately as possible. The main source of ammonia emissions is agriculture, and therefore agricultural survey statistics are the most important input data to an ammonia emission inventory alongside per activity estimates of emission potential. In the UK, agricultural statistics are collected at farm level, but are aggregated to parish level, NUTS-3 level or regular grid resolution for distribution to users...
May 9, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29741534/a-brief-look-at-the-history-of-the-deaconess-hospital-edinburgh-1894-1990
#18
E R McNeill, D Wright, A K Demetriades
The Deaconess Hospital, Edinburgh, opened in 1894 and was the first establishment of its kind in the UK, maintained and wholly funded as it was by the Reformed Church. Through its 96-year lifetime it changed and evolved to time and circumstance. It was a school: for the training of nurses and deaconesses who took their practical skills all over the world. It was a sanctum: for the sick-poor before the NHS. It was a subsidiary: for the bigger hospitals of Edinburgh after amalgamation into the NHS. It was a specialised centre: as the Urology Department in Edinburgh and the Scottish Lithotripter centre...
March 2018: Journal of the Royal College of Physicians of Edinburgh
https://www.readbyqxmd.com/read/29736237/merging-k-means-with-hierarchical-clustering-for-identifying-general-shaped-groups
#19
Anna D Peterson, Arka P Ghosh, Ranjan Maitra
Clustering partitions a dataset such that observations placed together in a group are similar but different from those in other groups. Hierarchical and K -means clustering are two approaches but have different strengths and weaknesses. For instance, hierarchical clustering identifies groups in a tree-like structure but suffers from computational complexity in large datasets while K -means clustering is efficient but designed to identify homogeneous spherically-shaped clusters. We present a hybrid non-parametric clustering approach that amalgamates the two methods to identify general-shaped clusters and that can be applied to larger datasets...
2018: Stat: the ISI's Journal for Rapid Dissemination of Statistics Research
https://www.readbyqxmd.com/read/29734617/blood-mercury-lead-and-cadmium-levels-and-determinants-of-exposure-among-newcomer-south-and-east-asian-women-of-reproductive-age-living-in-vancouver-canada
#20
Linda Dix-Cooper, Tom Kosatsky
BACKGROUND: Biomarkers of the reproductive and neuro-developmental toxicants mercury (Hg), lead (Pb) and cadmium (Cd) have been found at higher concentrations in women born outside Canada than in Canadian-born women. We measured blood Hg, Pb and Cd in women ages 19 to 45years living in greater Vancouver (Canada) within five years of their arrival from South Asia (India) or East Asia (mainland China, Hong Kong and Taiwan) and related their biomarker concentration levels with exposures and behaviors since their coming to Canada...
April 1, 2018: Science of the Total Environment
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