Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2012

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 5761 - 5790 of 22917

Full-Text Articles in Entire DC Network

Student Autonomy: A Case Study Of Intrinsic Motivation In The Art Classroom, Downi Griner Jul 2012

Student Autonomy: A Case Study Of Intrinsic Motivation In The Art Classroom, Downi Griner

Theses and Dissertations

How might a curriculum based on Self-Determination Theory (SDT) influence student motivation and art making in a 9th grade art classroom? The researcher devised a negotiated curriculum called The Master Artist Program based on the SDT theory of intrinsic motivation. The implementation of this curriculum was designed to explore the question of how a curriculum based on SDT theory would influence student motivation and art making in a 9th grade art classroom. This curriculum was implemented in a ninth grade art class on an optional basis for the course of nine weeks. The results of data analysis, illustrated by relevant …


Maximizing Transmission Opportunities In Wireless Multihop Networks, Jeong-Yoon Lee, Chansu Yu, Kang G. Shin, Young-Joo Suh Jul 2012

Maximizing Transmission Opportunities In Wireless Multihop Networks, Jeong-Yoon Lee, Chansu Yu, Kang G. Shin, Young-Joo Suh

Electrical and Computer Engineering Faculty Publications

Being readily available in most of 802.11 radios, multirate capability appears to be useful as WiFi networks are getting more prevalent and crowded. More specifically, it would be helpful in high-density scenarios because internode distance is short enough to employ high data rates. However, communication at high data rates mandates a large number of hops for a given node pair in a multihop network and thus, can easily be depreciated as per-hop overhead at several layers of network protocol is aggregated over the increased number of hops. This paper presents a novel multihop, multirate adaptation mechanism, called multihop transmission opportunity …


Cell Death And Growth Arrest Pathways Mediating The Actions Of Stilbene 5c In Hct-116 Colon Cancer Cells, Moureq Alotaibi Jul 2012

Cell Death And Growth Arrest Pathways Mediating The Actions Of Stilbene 5c In Hct-116 Colon Cancer Cells, Moureq Alotaibi

Theses and Dissertations

Abstract The stilbene derivative, cis-3, 4’, 5-trimethoxy-3’-aminostilbene (stilbene 5c), is a potentially potent antitumor agent that acts via binding to the colchicine-binding pocket in microtubules. Earlier studies have shown that stilbene 5c induces cell death in ovarian cancer cells and leukemic cells. The present study was designed to investigate the effectiveness of this microtubule poison against the HCT-116 human colon cancer cell line and its mechanisms of action. Time course studies demonstrated that stilbene 5c produces a biphasic decrease in cell viability. The capacity of the cells to proliferate was not restored upon removal of the drug after 6 days …


I(A) Channels Encoded By Kv1.4 And Kv4.2 Regulate Neuronal Firing In The Suprachiasmatic Nucleus And Circadian Rhythms In Locomotor Activity, Daniel Granados-Fuentes, Aaron J. Norris, Yarimar Carrasquillo, Jeanne M. Nerbonne, Erik D. Herzog Jul 2012

I(A) Channels Encoded By Kv1.4 And Kv4.2 Regulate Neuronal Firing In The Suprachiasmatic Nucleus And Circadian Rhythms In Locomotor Activity, Daniel Granados-Fuentes, Aaron J. Norris, Yarimar Carrasquillo, Jeanne M. Nerbonne, Erik D. Herzog

Open Access Publications

Neurons in the suprachiasmatic nucleus (SCN) display coordinated circadian changes in electrical activity that are critical for daily rhythms in physiology, metabolism, and behavior. SCN neurons depolarize spontaneously and fire repetitively during the day and hyperpolarize, drastically reducing firing rates, at night. To explore the hypothesis that rapidly activating and inactivating A-type (I(A)) voltage-gated K(+) (Kv) channels, which are also active at subthreshold membrane potentials, are critical regulators of the excitability of SCN neurons, we examined locomotor activity and SCN firing in mice lacking Kv1.4 (Kv1.4(-/-)), Kv4.2 (Kv4.2(-/-)), or Kv4.3 (Kv4.3(-/-)), the pore-forming (α) subunits of I(A) channels. Mice lacking …


The Bg News July 18, 2012, Bowling Green State University Jul 2012

The Bg News July 18, 2012, Bowling Green State University

BG News (Student Newspaper)

The BGSU campus student newspaper. July 18, 2012. Volume 102-Issue 111.


Opening Remarks - 1988: The Year Of The Woman, Karen Decrow Jul 2012

Opening Remarks - 1988: The Year Of The Woman, Karen Decrow

Syracuse University Magazine

No abstract provided.


University Place - Orange In The Big Apple, Mary Ellen Mengucci, Renee Gearhart Levy Jul 2012

University Place - Orange In The Big Apple, Mary Ellen Mengucci, Renee Gearhart Levy

Syracuse University Magazine

No abstract provided.


Apparent Digestible Protein, Energy, Phosphorus, And Amino Acid Availability Of A Novel Strain Of Soybean Meal For Juvenile Cobia, Rachycentron Canadum, Drew A. Davis Jul 2012

Apparent Digestible Protein, Energy, Phosphorus, And Amino Acid Availability Of A Novel Strain Of Soybean Meal For Juvenile Cobia, Rachycentron Canadum, Drew A. Davis

Open Access Theses

Apparent digestibility coefficient values of a novel strain of non-GMO soybean meal, Navita®, and an industry standard soybean meal (defatted soybean meal/roasted solvent-extracted), were evaluated for juvenile cobia, Rachycentron canadum. During the course of this 4-week feed trial, it was determined that Navita® has a high degree of protein and energy digestibility as well as amino acid availability, outperforming the regular soybean meal for nearly every analyzed component of the feed. Crude protein digestibility for the ingredients Navita® and regular soybean meal were calculated to be 81.83% and 68.51%, respectively, while energy digestibility values were found to be 62.65% and …


Family Ties And Plant Invasions: Do Closely Related Native And Exotic Fern Species Differ In Mycorrhizal Colonization?, Rebekah M. Outman Jul 2012

Family Ties And Plant Invasions: Do Closely Related Native And Exotic Fern Species Differ In Mycorrhizal Colonization?, Rebekah M. Outman

Open Access Theses

Although invasive plant species are known to decrease biodiversity and adversely affect native plant communities, factors that contribute to invasiveness are still poorly understood. Arbuscular mycorrhizas (AM) are an important biotic factor in many ecosystems, but evidence conflicts regarding their effects on invasive plant success. Nine species from four confamilial groups of native and exotic ferns in southern Florida were examined to determine their extent of mycorrhizal colonization. The mycorrhizal status of three species (Pteris bahamensis, Thelypteris dentata, and Thelypteris kunthii) was determined for the first time. Significant differences in AM colonization were found among confamilial groups. No significant differences …


Femoral Artery Regeneration In Ischemic Hind Limb By Aav9 Expressing Conditionally Silenced Vegf, Jeffrey P. Boden Jul 2012

Femoral Artery Regeneration In Ischemic Hind Limb By Aav9 Expressing Conditionally Silenced Vegf, Jeffrey P. Boden

Open Access Dissertations

PAD affects 7% of all people over 60 years of age, and 23% of all people over the age of 80. Over time, PAD progresses in severity, leading to critical limb ischemia (CLI), defined as an ankle-brachial index of 0.40 or less. Surgical bypass and other endovascular techniques are capable of providing temporary relief from symptoms of CLI in some subjects. However, recurrence of the disease is seen in over 30% of patients following surgical stent or graft intervention. As of yet there are no effective pharmacological agents available to treat CLI. Studies in this laboratory have defined a novel …


Nsf Pledges $586,500 To Underrepresented Students In Stem Programs At Rwu, Public Affairs, Roger Williams University Jul 2012

Nsf Pledges $586,500 To Underrepresented Students In Stem Programs At Rwu, Public Affairs, Roger Williams University

Featured News Story

Grant will allow University to provide 15 four-year, $26,000/year scholarships to selected students in engineering, biology and marine biology.


Modeling Potential Hydrochemical Responses To Climate Change And Increasing Co2 At The Hubbard Brook Experimental Forest Using A Dynamic Biogeochemical Model (Pnet-Bgc), Afshin Pourmokhtaria, Charles T. Driscoll, John L. Campbell, Katharine Hayhoe Jul 2012

Modeling Potential Hydrochemical Responses To Climate Change And Increasing Co2 At The Hubbard Brook Experimental Forest Using A Dynamic Biogeochemical Model (Pnet-Bgc), Afshin Pourmokhtaria, Charles T. Driscoll, John L. Campbell, Katharine Hayhoe

Civil and Environmental Engineering - All Scholarship

Dynamic hydrochemical models are useful tools for understanding and predicting the interactive effects of climate change, atmospheric CO2, and atmospheric deposition on the hydrology and water quality of forested watersheds. We used the biogeochemical model, PnET-BGC, to evaluate the effects of potential future changes in temperature, precipitation, solar radiation, and atmospheric CO2 on pools, concentrations, and fluxes of major elements at the Hubbard Brook Experimental Forest in New Hampshire, United States. Future climate projections used to run PnET-BGC were generated specifically for the Hubbard Brook Experimental Forest with a statistical technique that downscales climate output (e.g., air temperature, precipitation, solar …


High Schoolers To Launch Balloon To Outer Space At Unh Summer Institute, David Sims Jul 2012

High Schoolers To Launch Balloon To Outer Space At Unh Summer Institute, David Sims

Media Relations

No abstract provided.


Independent - Jul. 17, 2012, Emily N Haddad Jul 2012

Independent - Jul. 17, 2012, Emily N Haddad

The Independent (1988-present)

No abstract provided.


Designing A Continuous, High Throughput Flow-Filter For Whole Blood Fractionation And Enrichment, Vinay Bhal Jul 2012

Designing A Continuous, High Throughput Flow-Filter For Whole Blood Fractionation And Enrichment, Vinay Bhal

Electronic Theses and Dissertations Archive

Whole blood is a complex biological fluid and its heterogeneous particulate nature distinguishes its flows from those of simple fluids. The variations in concentration, physical and biochemical characteristics of its cellular components make it one of the most challenging suspension flows to be understood and modeled for applications to blood fractionation. Current blood cell segregation studies are performed at microfluidic scale, which prohibits use of whole blood and processing of large volumes. Centrifugation based apheresis is the most common method used for collection/removal of desired/deficient blood components. It involves drawing whole blood from the donor/patient and requires specialized skills to …


Silica-Based Antibacterial And Antifungal Nanoformulation, Swadeshmukul Santra Jul 2012

Silica-Based Antibacterial And Antifungal Nanoformulation, Swadeshmukul Santra

UCF Patents

A silica-based nanoformulation and method is used to treat citrus canker, inhibit the growth of mold and mildew, and add nutrients to soil used for agricultural purposes. The nanotechnology-enabled copper-loaded, silica nanoformulation (CuSiNP/NG) design is a "revolutionary re-invention" of Cu for safe application because it provides a formulation with maximum abundance ionic Cu, provides sustained and optimal Cu ion release for long-term disease protection, better adherence to plant surfaces and structural surfaces due to gel-based nanostructureof CuSiNG, thus avoiding multiple spray applications and reducing the amount of Cu used in comparison to existing Cu compounds without compromising anitbaterial activity. Thus, …


The Therapeutic Misconception: A Threat To Valid Parental Consent For Paediatric Neuroimaging Research, Nuala Kenny, Jocelyn Downie, Ryan D'Arcy, Michael Hadskis, Matthias H. Schmidt Jul 2012

The Therapeutic Misconception: A Threat To Valid Parental Consent For Paediatric Neuroimaging Research, Nuala Kenny, Jocelyn Downie, Ryan D'Arcy, Michael Hadskis, Matthias H. Schmidt

Research Papers, Working Papers, Conference Papers

Neuroimaging research has brought major advances to child health and wellbeing However because of the vulnerabilities associated with neurological and developmental conditions the parental need for hope and the expectation of parents that new medical advances can benefit their child pediatric neuroimaging research presents significant challenges to the general problem of consent in the context of research involving children A particular challenge in this domain is created by the presence of therapeutic misconception on the part of parents and other key research stakeholders This article reviews the concept of therapeutic misconception and its role in pediatric neuroimaging research It argues …


Small Molecules As Negative Allosteric Modulators Of Alpha7 Nachrs, Osama Alwassil Jul 2012

Small Molecules As Negative Allosteric Modulators Of Alpha7 Nachrs, Osama Alwassil

Theses and Dissertations

Alpha7 Neuronal nicotinic acetylcholine receptors (nAChRs) are involved in essential physiological functions and play a role in disorders such as Alzheimer’s disease. MD-354 (3-chlorophenylguanidine; 21), the first small–molecule negative allosteric modulator (NAM) at alpha7 nAChRs, served as a lead in developing structure–activity relationships for NAMs at a7 nAChRs. MD-354 (21) also binds at 5-HT3 receptors. Analogs of MD-354 with structural features detrimental to 5-HT3 receptor affinity were evaluated in patch-clamp recordings and an aniline N-methyl analog resulted in a more potent and selective NAM than MD-354. A new N-methyl series of compounds was synthesized in which the 3-position was replaced …


July 17, 2012, The Daily Mississippian Jul 2012

July 17, 2012, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.


Integer Sparse Distributed Memory And Modular Composite Representation, Javier Snaider Jul 2012

Integer Sparse Distributed Memory And Modular Composite Representation, Javier Snaider

Electronic Theses and Dissertations Archive

Challenging AI applications, such as cognitive architectures, natural language understanding, and visual object recognition share some basic operations including pattern recognition, sequence learning, clustering, and association of related data. Both the representations used and the structure of a system significantly influence which tasks and problems are most readily supported. A memory model and a representation that facilitate these basic tasks would greatly improve the performance of these challenging AI applications.Sparse Distributed Memory (SDM), based on large binary vectors, has several desirable properties: auto-associativity, content addressability, distributed storage, robustness over noisy inputs that would facilitate the implementation of challenging AI applications. …


Co-Operation And Interdependence: The Fachinformationszentrum Karlsruhe And The Scientific Libraries, Klaus Lankenau Jul 2012

Co-Operation And Interdependence: The Fachinformationszentrum Karlsruhe And The Scientific Libraries, Klaus Lankenau

Proceedings of the IATUL Conferences

As an introduction, tasks and objectives of the Fachinformationszentrum Karlsruhe as weIl as of the host, STN International, operated jointly with partners in the USA and Japan, are presented. With regard to further development in the field of information and documentation, the thesis is presented that the co-operation of all institutions involved in the dissemination of information is requested and necessary. Examples of actual and potential areas of cooperation with scientific libraries are described in the fields of database design, online database use, and literature supply, where future developmental possibilities are highlighted.


A Microcomputer Based Current Awareness Service, Marshall Clinton Jul 2012

A Microcomputer Based Current Awareness Service, Marshall Clinton

Proceedings of the IATUL Conferences

In November 1989, the University of Toronto Library introduced ScanDoc which links a PC-based current awareness and a document delivery service. Current Contents on Diskette is used to scan the current literature; locally developed programs are used to print current awareness notification slips; and the Library's document delivery service provides requested items. The current awareness service is offered to the University's facu1ty and research staff without charge while the document delivery service is provided on a cost-recovery basis. This paper describes the institutional setting, the way in which the service is operated, and the impact that the service has had …


Evolution And Revolution, Mara Pinckard Jul 2012

Evolution And Revolution, Mara Pinckard

Proceedings of the IATUL Conferences

No abstract provided.


Controls Of Dissolved Organic Matter Distribution And Fate In The Ocean, Robert T. Letscher Jul 2012

Controls Of Dissolved Organic Matter Distribution And Fate In The Ocean, Robert T. Letscher

Open Access Dissertations

Marine dissolved organic matter (DOM) is quantitatively important for the biogeochemical cycling of carbon and nitrogen. It exerts its influence through the ocean’s biological pump, with the fate of dissolved organic nitrogen (DON) and carbon (DOC) impacting the ocean’s fertility and its capacity for storing carbon on climate-relevant timescales, respectively. This dissertation identifies and quantifies important mechanisms and timescales for DOM degradation in the marine environment by combining observations from ship-based studies, assessments of ocean circulation, and incubation experiments to interrogate the relevant processes. The fate of terrigenous DOC (tDOC), delivered to the ocean by rivers, was investigated during its …


07-16-2012 Swosu's Dr. Andrea Holgado Honored With National Award, Southwestern Oklahoma State University Jul 2012

07-16-2012 Swosu's Dr. Andrea Holgado Honored With National Award, Southwestern Oklahoma State University

THE BARK ARCHIVE 2012

SWOSU Assistant Professor Dr. Andrea Holgado of Weatherford has received national recognition winning the Sidney A. McNairy, Jr. Mentoring Award.


Epidemiological Characteristics And Underlying Risk Factors For Mortality During The Autumn 2009 Pandemic Wave In Mexico, Gerardo Chowell, Santiago Echevarria-Zuno, Cecile Viboud, Lone Simonsen, Mark A. Miller, Irma Fernandez-Garate, Cesar Gonzalez-Bonilla, Víctor H. Borja Aburto Jul 2012

Epidemiological Characteristics And Underlying Risk Factors For Mortality During The Autumn 2009 Pandemic Wave In Mexico, Gerardo Chowell, Santiago Echevarria-Zuno, Cecile Viboud, Lone Simonsen, Mark A. Miller, Irma Fernandez-Garate, Cesar Gonzalez-Bonilla, Víctor H. Borja Aburto

Global Health Faculty Publications

Background

Elucidating the role of the underlying risk factors for severe outcomes of the 2009 A/H1N1 influenza pandemic could be crucial to define priority risk groups in resource-limited settings in future pandemics.

Methods

We use individual-level clinical data on a large series of ARI (acute respiratory infection) hospitalizations from a prospective surveillance system of the Mexican Social Security medical system to analyze clinical features at presentation, admission delays, selected comorbidities and receipt of seasonal vaccine on the risk of A/H1N1-related death. We considered ARI hospitalizations and inpatient-deaths, and recorded demographic, geographic, and medical information on individual patients during August-December, 2009. …


Identification Of Ebs1, Lsm6 And Nup159 As Suppressors Of Spt10 Effects At Adh2 In Saccharomyces Cerevisiae Suggests Post-Transcriptional Defects Affect Mrna Synthesis, Bradley Anderson, Carrie Ann May, Clyde L. Denis Jul 2012

Identification Of Ebs1, Lsm6 And Nup159 As Suppressors Of Spt10 Effects At Adh2 In Saccharomyces Cerevisiae Suggests Post-Transcriptional Defects Affect Mrna Synthesis, Bradley Anderson, Carrie Ann May, Clyde L. Denis

New Hampshire Agricultural Experiment Station Publications

Suppression of the effects of an spt10 mutation on ADH2 expression is a phenotype shared by a small number of genes whose protein products are either components of the CCR4-NOT complex required for mRNA deadenylation and degradation (CCR4, CAF1, NOT4) or have been shown to interact with the complex (DBF2, SRB9, SRB10). In this work, we conducted a screen for additional suppressors of spt10 at ADH2 to identify new factors related to CCR4 function. In addition to reisolating ccr4 and caf1 alleles, three previously unidentified suppressors …


Current, July 16, 2012, University Of Missouri-St. Louis Jul 2012

Current, July 16, 2012, University Of Missouri-St. Louis

Current (2010s)

No abstract provided.


A Review Of “Compromising Scholarship: Religious And Political Bias In American Higher Education", Ken Badley Jul 2012

A Review Of “Compromising Scholarship: Religious And Political Bias In American Higher Education", Ken Badley

Faculty Publications - College of Education

In Compromising Scholarship, Yancey argues that politically conservative persons, religiously conservative persons, and especially politically, religiously conservative persons face a disadvantage when seeking either employment or a fair hearing in the contemporary American academy, especially in the social sciences and humanities. Several times while reading this book, I recalled a job interview of my own at a university in Canada. One interviewer asked whether my religious convictions might undermine my ability to teach courses in a program that prepared teachers for service in Saskatchewan’s public schools. I noted that, while the question was illegal under Canada’s Charter of Rights and …


Ada News - 07/16/2012, American Dental Association, Publishing Division Jul 2012

Ada News - 07/16/2012, American Dental Association, Publishing Division

ADA News

Established in 1970 as the official newspaper of the American Dental Association, the ADA News serves practicing dentists and others allied to the dental profession in the U.S. and internationally. It is the No. 1 source of news and information about the many benefits and services the ADA delivers to members daily as well as timely information on scientific, social, political and economic developments affecting dentistry and health care.