Search results for: D. Downing

Items from 1 to 20 out of 22 results

article

Effect of polygon order on additively manufactured lattice structures: a method for defining the threshold resolution for lattice geometry

A. Alghamdi, B. Lozanovski, M. McMillan, R. Tino, more

The International Journal of Advanced Manufacturing Technology > 2019 > 105 > 5-6 > 2501-2511

Additive manufacture (AM) enables the fabrication of highly efficient lattice structures. However, the mathematical efficiency of characterising AM lattice geometry can be poor, potentially restricting the commercial application of AM lattice structures. This research quantifies the effect of the polygon order used to characterise the geometric resolution of lattice strut elements on the associated...

article

Growth environment and organ specific variation in in-vitro cytoprotective activities of Picea mariana in PC12 cells exposed to glucose toxicity: a plant used for treatment of diabetes symptoms by the Cree of Eeyou Istchee (Quebec, Canada)

Ashleigh D. Downing, Hoda M. Eid, Andrew Tang, Fida Ahmed, more

BMC Complementary and Alternative Medicine > 2019 > 19 > 1 > 1-14

Background The Cree of Eeyou Istchee (James Bay area of northern Quebec) suffer from a high rate of diabetes and its complications partly due to the introduction of the western lifestyle within their culture.As part of a search for alternative medicine based on traditional practice, this project evaluates the biological activity of Picea mariana (Mill.) Britton, Sterns & Poggenb. needle, bark,...

article

A new measure for end of life planning, preparation, and preferences in Huntington disease: HDQLIFE end of life planning

Noelle E. Carlozzi, E. A. Hahn, S. A. Frank, J. S. Perlmutter, more

Journal of Neurology > 2018 > 265 > 1 > 98-107

Background Huntington disease is a fatal inherited neurodegenerative disease. Because the end result of Huntington disease is death due to Huntington disease-related causes, there is a need for better understanding and caring for individuals at their end of life. Aim The purpose of this study was to develop a new measure to evaluate end of life planning. Design We conducted qualitative focus groups,...

chapter

A multivariate statistical approach for anomaly detection and condition based maintenance in complex systems

David A. Ogden, Tom L. Arnold, Walter D. Downing

2017 IEEE AUTOTESTCON > 1 - 8

2017 IEEE AUTOTESTCON

This paper will describe recent developments in the practical application of multivariate Statistical Process Control (SPC) techniques to improve and automate anomaly detection in complex systems as part of a comprehensive Condition Based Maintenance (CBM) system. The CBM implementation process will be broken down into phases from planning to operation. The operational CBM system includes data acquisition,...

article

A river‐scale Lagrangian experiment examining controls on phytoplankton dynamics in the presence and absence of treated wastewater effluent high in ammonium

Tamara E. C. Kraus, Kurt D. Carpenter, Brian A. Bergamaschi, Alexander E. Parker, more

Limnology and Oceanography > 62 > 3 > 1234 - 1253

Phytoplankton are critical component of the food web in most large rivers and estuaries, and thus identifying dominant controls on phytoplankton abundance and species composition is important to scientists, managers, and policymakers. Recent studies from a variety of systems indicate that ammonium (

{NH}_{4}^{+}

) in treated wastewater effluent decreases primary production and alters phytoplankton species...

article

Aflatoxin contamination in corn sold for wildlife feed in texas

Nicholas R. Dunham, Steven T. Peper, Carson D. Downing, Ronald J. Kendall

Ecotoxicology > 2017 > 26 > 4 > 516-520

Supplemental feeding with corn to attract and manage deer is a common practice throughout Texas. Other species, including northern bobwhites (Colinus virginianus), are commonly seen feeding around supplemental deer feeders. In many cases, supplemental feeding continues year-round so feed supply stores always have supplemental corn in stock. Fluctuating weather and improper storage of corn can lead...

article

Implications of employer coverage of contraception: Cost‐effectiveness analysis of contraception coverage under an employer mandate

W. Canestaro, E. Vodicka, D. Downing, J. Trussell

Contraception > 2017 > 95 > 1 > 77-89

Mandatory employer-based insurance coverage of contraception in the US has been a controversial component of the Affordable Care Act (ACA). Prior research has examined the cost‐effectiveness of contraception in general; however, no studies have developed a formal decision model in the context of the new ACA provisions. As such, this study aims to estimate the relative cost‐effectiveness of insurance...

article

Optical properties of dissolved organic matter (DOM): Effects of biological and photolytic degradation

Angela M. Hansen, Tamara E. C. Kraus, Brian A. Pellerin, Jacob A. Fleck, more

Limnology and Oceanography > 61 > 3 > 1015 - 1032

Advances in spectroscopic techniques have led to an increase in the use of optical properties (absorbance and fluorescence) to assess dissolved organic matter (DOM) composition and infer sources and processing. However, little information is available to assess the impact of biological and photolytic processing on the optical properties of original DOM source materials. Over a 3.5 month laboratory...

chapter

Software plug-ins for flexible test cell automation

Nathan D. Forster, Walter D. Downing

2015 IEEE AUTOTESTCON > 103 - 107

2015 IEEE AUTOTESTCON

Traditional approaches for test cell automation are inefficient and insufficient for today's fast paced, ever-changing testing requirements. Future test cell environments will utilize software plug-ins that are easily accessible and configurable by test engineers; they will also include automated test systems that provide for easy integration and quick development of these plug-ins. Consequently,...

article

Implications Of Employer Coverage Of Contraception: Cost-Effectiveness Of Contraception Under An Employer Mandate

WJ Canestaro, E Vodicka, D Downing

Value in Health > 2015 > 18 > 3 > A106-A107

article

Concurrent photolytic degradation of aqueous methylmercury and dissolved organic matter

Jacob A. Fleck, Gary Gill, Brian A. Bergamaschi, Tamara E.C. Kraus, more

Science of the Total Environment > 2014 > 484 > Complete > 263-275

Monomethyl mercury (MeHg) is a potent neurotoxin that threatens ecosystem viability and human health. In aquatic systems, the photolytic degradation of MeHg (photodemethylation) is an important component of the MeHg cycle. Dissolved organic matter (DOM) is also affected by exposure to solar radiation (light exposure) leading to changes in DOM composition that can affect its role in overall mercury...

article

Ras-Mek-Erk Signaling Regulates Nf1 Heterozygous Neointima Formation

Brian K. Stansfield, Waylan K. Bessler, Raghuveer Mali, Julie A. Mund, more

The American Journal of Pathology > 2014 > 184 > 1 > 79-85

Neurofibromatosis type 1 (NF1) results from mutations in the NF1 tumor-suppressor gene, which encodes neurofibromin, a negative regulator of diverse Ras signaling cascades. Arterial stenosis is a nonneoplastic manifestation of NF1 that predisposes some patients to debilitating morbidity and sudden death. Recent murine studies demonstrate that Nf1 heterozygosity (Nf1 ^+/− ) in monocytes/macrophages...

article

Analyzing contraception refill compliance in college students and pharmacist's role in the provision of contraception

C. Wolf, D. Downing, S. Mead, C.T. Goodfriend, more

Contraception > 2013 > 88 > 2 > 317

article

BARRIERS TO REUNIFICATION FOR INCARCERATED PARENTS—A JUDICIAL PERSPECTIVE

Honorable Marguerite D. Downing

Family Court Review > 50 > 1 > 71 - 76

Within the child welfare system, going to jail does not automatically mean losing your children. As the number of incarcerated parents rises, California dependency bench officers are looking at the effects incarceration has on parents seeking to reunify with their children. The California legislature passed legislation allowing a dependency judicial officer to consider the effect incarceration has...

article

Mercury Dynamics in a San Francisco Estuary Tidal Wetland: Assessing Dynamics Using In Situ Measurements

Brian A. Bergamaschi, Jacob A. Fleck, Bryan D. Downing, Emmanuel Boss, more

Estuaries and Coasts > 2012 > 35 > 4 > 1036-1048

We used high-resolution in situ measurements of turbidity and fluorescent dissolved organic matter (FDOM) to quantitatively estimate the tidally driven exchange of mercury (Hg) between the waters of the San Francisco estuary and Browns Island, a tidal wetland. Turbidity and FDOM—representative of particle-associated and filter-passing Hg, respectively—together predicted 94 % of the observed variability...

article

Hip extension strength following hamstring tendon harvest for ACL reconstruction

John M. Geoghegan, Guido G. Geutjens, Nicholas D. Downing, Karen Colclough, more

The Knee > 2007 > 14 > 5 > 352-356

Hamstring autograft harvest for ACL reconstruction may have an effect on hip extension strength and this may be important especially in sports that involve high speed running such as soccer, rugby, American football and the sprint disciplines of track and field. This aspect of hamstring tendon harvesting has not been looked at before. We have performed a non-randomised prospective case control study...

article

Acceptability of pharmacist prescribed hormonal contraceptives for healthy women in the direct access study

J. Gardner, E. James, D. Downing, L. Miller, more

Contraception > 2006 > 74 > 2 > 185

article

The relationship between proximal pole blood flow and the subjective assessment of increased density of the proximal pole in acute scaphoid fractures

Nicholas D. Downing, John A. Oni, Timothy R.C. Davis, Tai Q. Vu, more

Journal of Hand Surgery > 2002 > 27 > 3 > 402-408

The cause and importance of increased density of the proximal pole of the scaphoid seen in radiographs after an acute fracture were investigated. Blood flow to the proximal poles of 32 nonsurgically treated scaphoid fractures were assessed 1 to 2 weeks after injury by measuring their uptake of gadopentetate dimeglumine with dynamic magnetic resonance imaging and calculating its steepest slope and...

article

Trapezial space height after trapeziectomy: Mechanism of formation and benefits

Nicholas D. Downing, Timothy R.C. Davis

Journal of Hand Surgery > 2001 > 26 > 5 > 862-868

Seventy-three thumbs in 67 women with osteoarthritis of the trapeziometacarpal joint were assessed prospectively. The patients were randomly allocated for treatment by either trapeziectomy alone (n = 26) or trapeziectomy with tendon interposition (n = 23) or ligament reconstruction (n = 24). A K-wire was passed through the thumb metacarpal base and across the trapezial space into the distal pole of...

article

The use of a flexible biodegradable cement restrictor in total hip arthroplasty

Nicholas D. Downing, Alan P. Broodryk

The Journal of Arthroplasty > 1999 > 14 > 5 > 628-629

Publication date

Set your own date range

INFONA - science communication portal

Search results for: D. Downing

Effect of polygon order on additively manufactured lattice structures: a method for defining the threshold resolution for lattice geometry

Growth environment and organ specific variation in in-vitro cytoprotective activities of Picea mariana in PC12 cells exposed to glucose toxicity: a plant used for treatment of diabetes symptoms by the Cree of Eeyou Istchee (Quebec, Canada)

A new measure for end of life planning, preparation, and preferences in Huntington disease: HDQLIFE end of life planning

A multivariate statistical approach for anomaly detection and condition based maintenance in complex systems

A river‐scale Lagrangian experiment examining controls on phytoplankton dynamics in the presence and absence of treated wastewater effluent high in ammonium

Aflatoxin contamination in corn sold for wildlife feed in texas

Implications of employer coverage of contraception: Cost‐effectiveness analysis of contraception coverage under an employer mandate

Optical properties of dissolved organic matter (DOM): Effects of biological and photolytic degradation

Software plug-ins for flexible test cell automation

Implications Of Employer Coverage Of Contraception: Cost-Effectiveness Of Contraception Under An Employer Mandate

Concurrent photolytic degradation of aqueous methylmercury and dissolved organic matter

Ras-Mek-Erk Signaling Regulates Nf1 Heterozygous Neointima Formation

Analyzing contraception refill compliance in college students and pharmacist's role in the provision of contraception

BARRIERS TO REUNIFICATION FOR INCARCERATED PARENTS—A JUDICIAL PERSPECTIVE

Mercury Dynamics in a San Francisco Estuary Tidal Wetland: Assessing Dynamics Using In Situ Measurements

Hip extension strength following hamstring tendon harvest for ACL reconstruction

Acceptability of pharmacist prescribed hormonal contraceptives for healthy women in the direct access study

The relationship between proximal pole blood flow and the subjective assessment of increased density of the proximal pole in acute scaphoid fractures

Trapezial space height after trapeziectomy: Mechanism of formation and benefits

The use of a flexible biodegradable cement restrictor in total hip arthroplasty

Filter options

Publication date

Content availability

Publication type

Keywords

Data set

Journal

INFONA - science communication portal

Search results for: D. Downing

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Content availability

Publication type

Keywords

Data set

Journal

Reporting an error / abuse

Sending the report failed

Accessibility options