Search results for: D. Coffey

Items from 1 to 20 out of 30 results

article

Body mass index and complications following major gastrointestinal surgery: a prospective, international cohort study and meta‐analysis

EuroSurg Collaborative, R. Blanco‐Colino, S. Lee, S. K. Kamarajah, more

Colorectal Disease > 20 > 8 > O215 - O225

Aim Previous studies reported conflicting evidence on the effects of obesity on outcomes after gastrointestinal surgery. The aims of this study were to explore the relationship of obesity with major postoperative complications in an international cohort and to present a meta‐analysis of all available prospective data. Methods This prospective, multicentre study included adults undergoing both elective...

article

Ocean acidification leads to altered micromechanical properties of the mineralized cuticle in juvenile red and blue king crabs

William D. Coffey, Jessica A. Nardone, Aparna Yarram, W. Christopher Long, more

Journal of Experimental Marine Biology and Ecology > 2017 > 495 > C > 1-12

Ocean acidification (OA) adversely affects a broad range of marine calcifying organisms. Crustaceans, however, exhibit mixed responses to OA, with growth or survival negatively affected in some species, but unaffected or positively affected in others. In crustaceans, the mineralized cuticle resists mechanical loads, provides protection from the environment, and enables mobility, but little is known...

article

A re‐audit of the technical quality of undergraduate root canal treatment after the introduction of new technology and teaching practices

A. Donnelly, D. Coffey, H. F. Duncan

International Endodontic Journal > 50 > 10 > 941 - 950

Aim To revaluate through re‐audit the technical quality of undergraduate nonsurgical root canal treatment (RCTx) in a dental teaching hospital as a result of recommended changes to teaching practices. Methodology The technical quality of undergraduate RCTx was evaluated radiographically after educational changes and the mandatory introduction of new technologies (nickel‐titanium files, apex locators,...

article

A spatial analysis of civic-ceremonial architecture in the central Mesa Verde Region, United States

Grant D. Coffey, Susan C. Ryan

Journal of Anthropological Archaeology > 2017 > 47 > C > 12-32

This study analyzes the spatial and temporal patterning of civic-ceremonial structures in the central Mesa Verde region of the northern Southwest to assess changing patterns of leadership in Pueblo society. Great kivas, as the most ubiquitous and persistent form of Pueblo public architecture in the area prior to 1280 CE, provide a durable means of assessing community membership and for analyzing how...

article

Synchronized navigation of current and prior studies using image registration improves radiologist’s efficiency

Daniel Forsberg, Amit Gupta, Christopher Mills, Brett MacAdam, more

International Journal of Computer Assisted Radiology and Surgery > 2017 > 12 > 3 > 431-438

Purpose The purpose of this study was to investigate how the use of multi-modal rigid image registration integrated within a standard picture archiving and communication system affects the efficiency of a radiologist while performing routine interpretations of cases including prior examinations. Methods Six radiologists were recruited to read a set of cases (either 16 neuroradiology or 14 musculoskeletal...

article

Prevalence of avian haemosporidian parasites is positively related to the abundance of host species at multiple sites within a region

Vincenzo A. Ellis, Matthew C. I. Medeiros, Michael D. Collins, Eloisa H. R. Sari, more

Parasitology Research > 2017 > 116 > 1 > 73-80

Parasite prevalence is thought to be positively related to host population density owing to enhanced contagion. However, the relationship between prevalence and local abundance of multiple host species is underexplored. We surveyed birds and their haemosporidian parasites (genera Plasmodium and Haemoproteus) at multiple sites across eastern North America to test whether the prevalence of these parasites...

article

Multicentre prospective cohort study of body mass index and postoperative complications following gastrointestinal surgery

STARSurg Collaborative, T. M. Drake, D. Nepogodiev, S. J. Chapman, more

British Journal of Surgery > 103 > 9 > 1157 - 1172

BackgroundThere is currently conflicting evidence surrounding the effects of obesity on postoperative outcomes. Previous studies have found obesity to be associated with adverse events, but others have found no association. The aim of this study was to determine whether increasing body mass index (BMI) is an independent risk factor for development of major postoperative complications. MethodsThis...

article

A legacy of human‐induced ecosystem changes: spatial processes drive the taxonomic and functional diversities of testate amoebae in Sphagnum peatlands of the Galápagos

Bertrand Fournier, Emily E. D. Coffey, W. O. Knaap, Leonardo D. Fernández, more

Journal of Biogeography > 43 > 3 > 533 - 543

Aim Our aims were to compare the composition of testate amoeba (TA) communities from Santa Cruz Island, Galápagos Archipelago, which are likely in existence only as a result of anthropogenic habitat transformation, with similar naturally occurring communities from northern and southern continental peatlands. Additionally, we aimed at assessing the importance of niche‐based and dispersal‐based processes...

chapter

Investigating the Accessibility of State Government Web Sites in Maryland

J. Lazar, P. Beavan, J. Brown, D. Coffey, more

Designing Inclusive Interactions > Measuring Inclusion > 69-78

All citizens have the right to access information from their government. At both the federal and state levels in the United States, citizens with impairments expect the same access to government information as anyone else. When government information is available on a web site, that information must be accessible for people with impairments. People with perceptual, motor, and/or cognitive impairments...

article

Cucurbit powdery mildews: methodology for objective determination and denomination of races

Aleš Lebeda, Eva Křístková, Božena Sedláková, James D. McCreight, more

European Journal of Plant Pathology > 2016 > 144 > 2 > 399-410

Cucurbit powdery mildew (CPM), a disease on field and greenhouse cucurbit crops worldwide, is caused most frequently by two obligate erysiphaceous ectoparasites (Golovinomyces orontii s.l., Podosphaera xanthii) that are highly variable in their pathogenicity and virulence. Various independent systems of CPM race determination and denomination are used worldwide, having to date been differentiated...

article

Serum protein layers on parylene-C and silicon oxide: Effect on cell adhesion

Evangelos Delivopoulos, Myriam M. Ouberai, Paul D. Coffey, Marcus J. Swann, more

Colloids and Surfaces B: Biointerfaces > 2015 > 126 > Complete > 169-177

Among the range of materials used in bioengineering, parylene-C has been used in combination with silicon oxide and in presence of the serum proteins, in cell patterning. However, the structural properties of adsorbed serum proteins on these substrates still remain elusive. In this study, we use an optical biosensing technique to decipher the properties of fibronectin (Fn) and serum albumin adsorbed...

article

A combined mitochondrial and nuclear multilocus phylogeny of the genus Phytophthora

Frank N. Martin, Jaime E. Blair, Michael D. Coffey

Fungal Genetics and Biology > 2014 > 66 > Complete > 19-32

The most recent phylogenetic analysis of the genus Phytophthora was completed in 2008 (Blair et al., 2008) and utilized 8.1kb of sequence data from seven nuclear loci. Given the large number of species that have recently been described, this study was undertaken to broaden the available information on the phylogeny of the genus. A total of 166 isolates representing 92 recognized species and 17 provisional...

article

The ecological consequences of megafaunal loss: giant tortoises and wetland biodiversity

Cynthia A. Froyd, Emily E. D. Coffey, Willem O. Knaap, Jacqueline F. N. Leeuwen, more

Ecology Letters > 17 > 2 > 144 - 154

The giant tortoises of the Galápagos have become greatly depleted since European discovery of the islands in the 16th Century, with populations declining from an estimated 250 000 to between 8000 and 14 000 in the 1970s. Successful tortoise conservation efforts have focused on species recovery, but ecosystem conservation and restoration requires a better understanding of the wider ecological consequences...

article

Shotgun proteomics reveals physiological response to ocean acidification in Crassostrea gigas

Emma Timmins-Schiffman, William D Coffey, Wilber Hua, Brook L Nunn, more

BMC Genomics > 2014 > 15 > 1 > 1-18

Background Ocean acidification as a result of increased anthropogenic CO₂ emissions is occurring in marine and estuarine environments worldwide. The coastal ocean experiences additional daily and seasonal fluctuations in pH that can be lower than projected end-of-century open ocean pH reductions. In order to assess the impact of ocean acidification on marine invertebrates, Pacific oysters (Crassostrea gigas...

article

Small RNA Profiling Reveals Phosphorus Deficiency as a Contributing Factor in Symptom Expression for Citrus Huanglongbing Disease

Hongwei Zhao, Ruobai Sun, Ute Albrecht, Chellappan Padmanabhan, more

Molecular Plant > 2013 > 6 > 2 > 301-310

Huanglongbing (HLB) is a devastating citrus disease that is associated with bacteria of the genus ‘Candidatus Liberibacter’ (Ca. L.). Powerful diagnostic tools and management strategies are desired to control HLB. Host small RNAs (sRNA) play a vital role in regulating host responses to pathogen infection and are used as early diagnostic markers for many human diseases, including cancers. To determine...

article

Visualizing Motion Data in Virtual Reality: Understanding the Roles of Animation, Interaction, and Static Presentation

D. Coffey, F. Korsakov, M. Ewert, H. Hagh‐Shenas, more

Computer Graphics Forum > 31 > 3pt3 > 1215 - 1224

We present a study of interactive virtual reality visualizations of scientific motions as found in biomechanics experiments. Our approach is threefold. First, we define a taxonomy of motion visualizations organized by the method (animation, interaction, or static presentation) used to depict both the spatial and temporal dimensions of the data. Second, we design and implement a set of eight example...

article

DNA barcoding of oomycetes with cytochrome c oxidase subunit I and internal transcribed spacer

GREGG P. ROBIDEAU, ARTHUR W. A. M. De COCK, MICHAEL D. COFFEY, HERMANN VOGLMAYR, more

Molecular Ecology Resources > 11 > 6 > 1002 - 1011

Oomycete species occupy many different environments and many ecological niches. The genera Phytophthora and Pythium for example, contain many plant pathogens which cause enormous damage to a wide range of plant species. Proper identification to the species level is a critical first step in any investigation of oomycetes, whether it is research driven or compelled by the need for rapid and accurate...

article

Gaps and perspectives of pathotype and race determination in Golovinomyces cichoracearum and Podosphaera xanthii

Aleš Lebeda, Eva Krístková, Božena Sedláková, Michael D. Coffey, more

Mycoscience > 2011 > 52 > 3 > 159-164

Golovinomyces cichoracearum and Podosphaera xanthii (family Erysiphaceae) are the most important species causing cucurbit powdery mildew (CPM), a serious disease of field and greenhouse cucurbits. Both species are highly variable in their pathogenicity and virulence, as indicated by the existence of large number of different pathotypes and races. Various independent systems of CPM pathotype and race...

article

Gaps and perspectives of pathotype and race determination in Golovinomyces cichoracearum and Podosphaera xanthii

Aleš Lebeda, Eva Křístková, Božena Sedláková, Michael D. Coffey, more

Mycoscience > 2011 > 52 > 3 > 159-164

Golovinomyces cichoracearum and Podosphaera xanthii (family Erysiphaceae) are the most important species causing cucurbit powdery mildew (CPM), a serious disease of field and greenhouse cucurbits. Both species are highly variable in their pathogenicity and virulence, as indicated by the existence of large number of different pathotypes and races. Various independent systems of CPM pathotype and race...

article

Optical Extinction Combined with Phase Measurements for Probing DNA−Small-Molecule Interactions Using an Evanescent Waveguide Biosensor

Juan Wang, Paul D. Coffey, Marcus J. Swann, Fan Yang, more

Analytical Chemistry > 2010 > 82 > 13 > 5455 - 5462

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Search results for: D. Coffey

Body mass index and complications following major gastrointestinal surgery: a prospective, international cohort study and meta‐analysis

Ocean acidification leads to altered micromechanical properties of the mineralized cuticle in juvenile red and blue king crabs

A re‐audit of the technical quality of undergraduate root canal treatment after the introduction of new technology and teaching practices

A spatial analysis of civic-ceremonial architecture in the central Mesa Verde Region, United States

Synchronized navigation of current and prior studies using image registration improves radiologist’s efficiency

Prevalence of avian haemosporidian parasites is positively related to the abundance of host species at multiple sites within a region

Multicentre prospective cohort study of body mass index and postoperative complications following gastrointestinal surgery

A legacy of human‐induced ecosystem changes: spatial processes drive the taxonomic and functional diversities of testate amoebae in Sphagnum peatlands of the Galápagos

Investigating the Accessibility of State Government Web Sites in Maryland

Cucurbit powdery mildews: methodology for objective determination and denomination of races

Serum protein layers on parylene-C and silicon oxide: Effect on cell adhesion

A combined mitochondrial and nuclear multilocus phylogeny of the genus Phytophthora

The ecological consequences of megafaunal loss: giant tortoises and wetland biodiversity

Shotgun proteomics reveals physiological response to ocean acidification in Crassostrea gigas

Small RNA Profiling Reveals Phosphorus Deficiency as a Contributing Factor in Symptom Expression for Citrus Huanglongbing Disease

Visualizing Motion Data in Virtual Reality: Understanding the Roles of Animation, Interaction, and Static Presentation

DNA barcoding of oomycetes with cytochrome c oxidase subunit I and internal transcribed spacer

Gaps and perspectives of pathotype and race determination in Golovinomyces cichoracearum and Podosphaera xanthii

Gaps and perspectives of pathotype and race determination in Golovinomyces cichoracearum and Podosphaera xanthii

Optical Extinction Combined with Phase Measurements for Probing DNA−Small-Molecule Interactions Using an Evanescent Waveguide Biosensor

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