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Articles 145891 - 145920 of 302576

Full-Text Articles in Physical Sciences and Mathematics

Quantifying The Stratigraphic Completeness Of Delta Shoreline Trajectories, Robert C. Mahon, John B. Shaw, Katherine R. Barnhart, Daniel E. J. Hobley, Brandon Mcelroy Jan 2015

Quantifying The Stratigraphic Completeness Of Delta Shoreline Trajectories, Robert C. Mahon, John B. Shaw, Katherine R. Barnhart, Daniel E. J. Hobley, Brandon Mcelroy

Earth and Environmental Sciences Faculty Publications

Understanding the incomplete nature of the stratigraphic record is fundamental for interpreting stratigraphic sequences. Methods for quantifying stratigraphic completeness for one-dimensional stratigraphic columns, defined as the proportion of time intervals of some length that contain stratigraphy, are commonplace; however, quantitative assessments of completeness in higher dimensions are lacking. Here we present a metric for defining stratigraphic completeness of two-dimensional shoreline trajectories using topset-foreset rollover positions in dip-parallel sections and describe the preservation potential of a shoreline trajectory derived from the geometry of the delta surface profile and the kinematics of the geomorphic shoreline trajectory. Two end-member forward models are required …


Teaching Green Chemistry Principles To Undergraduate Students, Mariya Rozov, Tyler K. Brescia, Lyanne Valdez, Rita K. Upmacis Jan 2015

Teaching Green Chemistry Principles To Undergraduate Students, Mariya Rozov, Tyler K. Brescia, Lyanne Valdez, Rita K. Upmacis

Faculty Papers and Publications

The environment is affected by the actions of mankind in multitudinous ways, many of which are detrimental, giving rise to pollution and toxic waste, ultimately making our planet less inhabitable. While remediation and new regulations help to prevent pollution and toxic waste, there is also a need to change the behavior of future generations of consumers and producers of new products. Future chemists and innovators are charged with the responsibility of developing new chemical processes and products that not only meet the needs of our growing population (in terms of energy, clean water and food), but also protect human health …


Looking Through The Lens Of Size: Land Use Regulations And Micro-Apartments Insan Francisco, C. J. Gabbe Jan 2015

Looking Through The Lens Of Size: Land Use Regulations And Micro-Apartments Insan Francisco, C. J. Gabbe

Environmental Studies and Sciences

Small studio apartments, or micro-apartments, represent a market response to high housing costs in several major American cities. San Francisco, California, is one of the nation’s most expensive housing markets and the location of an innovative pilot microapartment policy. The literature on regulatory barriers to affordable housing has yet to pay much attention to minimum unit-size requirements. This article uses two prototype buildings to illustrate regulatory barriers to smaller units, including minimum parking standards in some parts of the city, outdoor open-space and indoor common-space provisions, unit-mix stipulations, and inclusionary zoning requirements. I recommend that cities review their codes through …


Uniform Convergence On A Bakhvalov-Type Mesh Using The Preconditioningapproach. Technical Report, Thái Ahn Nhan, Relja Vulanović Jan 2015

Uniform Convergence On A Bakhvalov-Type Mesh Using The Preconditioningapproach. Technical Report, Thái Ahn Nhan, Relja Vulanović

Mathematics and Computer Science

The linear singularly perturbed convection-diffusion problem in one dimension is considered and its discretization on a Bakhvalov-type mesh is analyzed. The preconditioning technique is used to obtain the pointwise convergence uniform in the perturbation parameter.


Santa Clara Magazine, Volume 56 Number 2, Winter 2015, Santa Clara University Jan 2015

Santa Clara Magazine, Volume 56 Number 2, Winter 2015, Santa Clara University

Santa Clara Magazine

10 - May the Rhodes rise to meet you - On the road with Aven Satre-Meloy ’13.

16 - Season tough, photos by Denis Concordel.

18 - Space Aces by Sam Scott '96. 20 - The fragility of faith by Michael C. McCarthy, S.J. '87. A professor of religious studies and executive director of SCU’s Ignatian Center for Jesuit Education confesses that it’s not merely an academic question when he asks: “How can a thinking person still believe in God?”

26 - Rebound by Mitch Finley '73. Lessons from the court and the chapel in dealing with addiction, mental illness, …


Confocal Sputtering Of Conformal Α-Β Phase W Films On Etched Al Features, John Mark Kreikebaum, Blas Cabrera, Jeffrey J. Yen, Paul L. Brink, Matt Cherry, Astrid Tomada, Betty A. Young Jan 2015

Confocal Sputtering Of Conformal Α-Β Phase W Films On Etched Al Features, John Mark Kreikebaum, Blas Cabrera, Jeffrey J. Yen, Paul L. Brink, Matt Cherry, Astrid Tomada, Betty A. Young

Physics

The authors report on thin-film processing improvements in the fabrication of superconducting quasiparticle-trap-assisted electrothermal-feedback transition-edge sensors used in the design of cryogenic dark matter search detectors. The work was performed as part of a detector upgrade project that included optimization of a new confocal sputtering system and development of etch recipes compatible with patterning 40 nm-thick, α-β mixed-phase W films deposited on 300–600 nm-thick, patterned Al. The authors found that their standard exothermic Al wet etch recipes provided inadequate W/Al interfaces and led to poor device performance. The authors developed a modified Al wet-etch recipe that effectively mitigates geometrical step-coverage …


Association Between Respiratory Syncytial Virus Activity And Pneumococcal Disease In Infants: A Time Series Analysis Of Us Hospitalization Data., Daniel M. Weinberger, Keith P. Klugman, Claudia A. Steiner, Lone Simonsen, Cécile Viboud Jan 2015

Association Between Respiratory Syncytial Virus Activity And Pneumococcal Disease In Infants: A Time Series Analysis Of Us Hospitalization Data., Daniel M. Weinberger, Keith P. Klugman, Claudia A. Steiner, Lone Simonsen, Cécile Viboud

Epidemiology Faculty Publications

BACKGROUND:

The importance of bacterial infections following respiratory syncytial virus (RSV) remains unclear. We evaluated whether variations in RSV epidemic timing and magnitude are associated with variations in pneumococcal disease epidemics and whether changes in pneumococcal disease following the introduction of seven-valent pneumococcal conjugate vaccine (PCV7) were associated with changes in the rate of hospitalizations coded as RSV.

METHODS AND FINDINGS:

We used data from the State Inpatient Databases (Agency for Healthcare Research and Quality), including >700,000 RSV hospitalizations and >16,000 pneumococcal pneumonia hospitalizations in 36 states (1992/1993-2008/2009). Harmonic regression was used to estimate the timing of the average seasonal …


Clinical Significance Of Left Atrial Anatomic Abnormalities Identified By Cardiac Computed Tomography, Ara V. Vehian, Brian G. Choi, Satinder Rekhi, Heather A. Young, Raman S. Dusaj, Robert K. Zeman Jan 2015

Clinical Significance Of Left Atrial Anatomic Abnormalities Identified By Cardiac Computed Tomography, Ara V. Vehian, Brian G. Choi, Satinder Rekhi, Heather A. Young, Raman S. Dusaj, Robert K. Zeman

Epidemiology Faculty Publications

Purpose: The clinical significance of newly identified left atrial anatomic abnormalities (LAAA)— accessory appendages, diverticula, septal pouches—by multidetector CT (MDCT) remains unclear. Similar anatomical outpouchings, i.e., the left atrial appendage, have been associated with cardioembolisms and arrhythmia. To test the hypothesis that LAAA are also associated with increased risk of these events, we performed a retrospective analysis to examine the association of LAAA in patients undergoing CT with embolic events and arrhythmia.

Methods: 242 patients (mean age 56 SD 12 years, 41% female) were selected who had CT coronary angiography performed with 64-row MDCT between 2007 and 2012 if complete …


Pregnant And Postpartum Women’S Experiences And Perspectives On The Acceptability And Feasibility Of Copackaged Medicine For Antenatal Care And Pmtct In Lesotho, Michelle M. Gill, Heather J. Hoffman, Appolinaire Tiam, Florence M. Mohai, Mokone Majoalane, Anthony Isavwa, Laura Guay, +4 Additional Authors Jan 2015

Pregnant And Postpartum Women’S Experiences And Perspectives On The Acceptability And Feasibility Of Copackaged Medicine For Antenatal Care And Pmtct In Lesotho, Michelle M. Gill, Heather J. Hoffman, Appolinaire Tiam, Florence M. Mohai, Mokone Majoalane, Anthony Isavwa, Laura Guay, +4 Additional Authors

Epidemiology Faculty Publications

Objective. To improve PMTCT and antenatal care-related service delivery, a pack with centrally prepackaged medicine was rolled out to all pregnant women in Lesotho in 2011. This study assessed acceptability and feasibility of this copackaging mechanism for drug delivery among pregnant and postpartum women.

Methods. Acceptability and feasibility were assessed in a mixed method, cross-sectional study through structured interviews (SI) and semistructured interviews (SSI) conducted in 2012 and 2013.

Results. 290 HIV-negative women and 437 HIV-positive women (n=727) participated. Nearly all SI participants found prepackaged medicines acceptable, though modifications such as size reduction of the pack were …


Skin Collagen Advanced Glycation Endproducts (Ages) And The Long-Term Progression Of Sub-Clinical Cardiovascular Disease In Type 1 Diabetes, Vincent M. Monnier, Wanjie Sun, Xiaoyu Gao, David R. Sell, Patricia Cleary, John M. Lachin, Saul Genuth, The Dcct/Edic Research Group Jan 2015

Skin Collagen Advanced Glycation Endproducts (Ages) And The Long-Term Progression Of Sub-Clinical Cardiovascular Disease In Type 1 Diabetes, Vincent M. Monnier, Wanjie Sun, Xiaoyu Gao, David R. Sell, Patricia Cleary, John M. Lachin, Saul Genuth, The Dcct/Edic Research Group

GW Biostatistics Center

BACKGROUND:

We recently reported strong associations between eight skin collagen AGEs and two solubility markers from skin biopsies obtained at DCCT study closeout and the long-term progression of microvascular disease in EDIC, despite adjustment for mean glycemia. Herein we investigated the hypothesis that some of these AGEs (fluorescence to be reported elsewhere) correlate with long-term subclinical cardiovascular disease (CVD) measurements, i.e. coronary artery calcium score (CAC) at EDIC year 7-9 (n = 187), change of carotid intima-media thickness (IMT) from EDIC year 1 to year 6 and 12 (n = 127), and cardiac MRI outcomes at EDIC year 15-16 (n …


Quick Git Setup, Joseph Lawrence, Seikyung Jung Jan 2015

Quick Git Setup, Joseph Lawrence, Seikyung Jung

Computer Science Faculty Publications

Version control is widely adopted in industry because it enables software development in groups, yet few students gain sufficient experience through their undergraduate courses. Even though version control is ideal for work submission, faculty may avoid it in favor of course management systems used only in academia. This tutorial introduces software to automate setting up version control with cloud project hosting services, and gives experience with version control as a side-effect of work submission and collection. This tutorial assumes no prior experience.


Division Polynomials With Galois Group Su3(3).2 = G2(2), David P. Roberts Jan 2015

Division Polynomials With Galois Group Su3(3).2 = G2(2), David P. Roberts

Mathematics Publications

We use a rigidity argument to prove the existence of two related degree twenty-eight covers of the projective plane with Galois group SU3(3).2 ∼= G2(2). Constructing corresponding two-parameter polynomials directly from the defining group-theoretic data seems beyond feasibility. Instead we provide two independent constructions of these polynomials, one from 3-division points on covers of the projective line studied by Deligne and Mostow, and one from 2-division points of genus three curves studied by Shioda. We explain how one of the covers also arises as a 2-division polynomial for a family of G2 motives in the …


Changes In The Geometry And Volume Of Rabots Glaciär, Sweden, 2003-2011: Recent Accelerated Volume Loss Linked To More Negative Summer Balances, Keith A. Brugger, Latysha Pankratz Jan 2015

Changes In The Geometry And Volume Of Rabots Glaciär, Sweden, 2003-2011: Recent Accelerated Volume Loss Linked To More Negative Summer Balances, Keith A. Brugger, Latysha Pankratz

Geology Publications

Terminus geometry, ice margins, and surface elevations on Rabots glaciär were measured using differential GPS during summer 2011 and compared with those similarly measured in 2003. Glacier length over the eight years decreased by ∼105 m corresponding to 13 m a−1, a rate consistent with ice recession over the last several decades. Measured changes in surface elevations show that between 2003 and 2011 the glacier’s volume decreased by ∼27.6 ± 2.6 × 106 m3, or 3.5± 0.3 × 106 m3 a−1. This compares favorably with an estimate of −28.1 ± 2.6 × 106 m3 based on a mass-balance approach. The …


Porphyrin Derivatives And Photodynamic Therapy Effects On Triple Negative Breast Cancer, Sarah Rogers, Joseph E. Bradshaw, Timothy E. Hayes Jan 2015

Porphyrin Derivatives And Photodynamic Therapy Effects On Triple Negative Breast Cancer, Sarah Rogers, Joseph E. Bradshaw, Timothy E. Hayes

Scholars Day

There are limited effective options for treatment of triple negative breast cancer (TNBC) due to its lack of the three receptors typically used to target breast cancer. The use of photodynamic therapy (PDT) to kill cells that take up light-absorbing compounds (PDT agents) may be an effective option to treat TNBC. We tested the efficacy of modified porphyrins as PDT agents against cells from TNBC. We compared these to Foscan, which is similar in structure to porphyrins and has been approved for use in Europe. Our 1st goal was to measure which porphyrins were taken up best by TNBC cells. …


Scholars Day Program Of Events 2015, Carl Goodson Honors Program Jan 2015

Scholars Day Program Of Events 2015, Carl Goodson Honors Program

Scholars Day

No abstract provided.


A Joint Receiver Function And Gravity Study Of Crustal Structure Beneath The Incipient Okavango Rift, Botswana, Youqiang Yu, Kelly H. Liu, Cory A. Reed, Moikwathai Moidaki, Kevin Mickus, Estella A. Aetkwana, Stephen S. Gao Jan 2015

A Joint Receiver Function And Gravity Study Of Crustal Structure Beneath The Incipient Okavango Rift, Botswana, Youqiang Yu, Kelly H. Liu, Cory A. Reed, Moikwathai Moidaki, Kevin Mickus, Estella A. Aetkwana, Stephen S. Gao

College of Natural and Applied Sciences

Rifting incorporates the fundamental processes concerning the breakup of continental lithosphere and plays a significant role in the formation and evolution of sedimentary basins. In order to decipher the characteristics of rifting at its earliest stage, we conduct the first teleseismic crustal study of one of the world's youngest continental rifts, the Okavango Rift Zone (ORZ), where the magma has not yet breached the surface. Results from receiver function stacking and gravity modeling indicate that the crust/mantle boundary beneath the ORZ is uplifted by 4-5 km, and the initiation of the ORZ is closely related to lithospheric stretching. Possible decompression …


The Coastal Monitor: Vol. 1, No. 1, John Tanacredi Ph.D. Jan 2015

The Coastal Monitor: Vol. 1, No. 1, John Tanacredi Ph.D.

The Coastal Monitor

The Center for Environmental Research and Coastal Oceans Monitoring (CERCOM) is a scientific coastal research center and field station dedicated to exploring our global coastal environments and near-shore oceans. CERCOM is the field station support facility for all sciences at Molloy College and services the degree programs of Biology, Chemistry, and Environmental Studies, with special attention to a B.S. degree in Earth and Environmental Studies. Located at the West Sayville Boat Basin on the Great South Bay, CERCOM is a 2,500 sq. ft. field station estuarine/ marine science laboratory where environmental monitoring and analysis is conducted 365 days a year.


Pure Injective And *-Pure Injective Lca Groups, Peter Loth Jan 2015

Pure Injective And *-Pure Injective Lca Groups, Peter Loth

Mathematics Faculty Publications

No abstract provided.


Algal Quality Controls The Distribution, Behavior And Growth Of Algivorous Cichlids In Lake Tanganyika, Renalda Nanziga Munubi Jan 2015

Algal Quality Controls The Distribution, Behavior And Growth Of Algivorous Cichlids In Lake Tanganyika, Renalda Nanziga Munubi

Browse all Theses and Dissertations

The nutritional value of primary producer is dependent on the concentrations of C, N and P. These elements are the building blocks for protein, carbohydrates, lipids, nucleic acids and other biochemical compounds. The balance between the supply of dietary elements and the herbivore's demand is crucial for the growth of algivorous organisms, including fish. However, anthropogenic changes in primary producer quality due to sediments may alter the value and quantity of food in the littoral zone of Lake Tanganyika, which may affect both herbivorous near shore and pelagic fisheries. This dissertation focuses on the influence of algae food on herbivore …


The Subject Librarian Newsletter, Chemistry, Fall 2015, Patti Mccall Jan 2015

The Subject Librarian Newsletter, Chemistry, Fall 2015, Patti Mccall

Libraries' Newsletters

No abstract provided.


The Subject Librarian Newsletter, Physics, Fall 2015, Patti Mccall Jan 2015

The Subject Librarian Newsletter, Physics, Fall 2015, Patti Mccall

Libraries' Newsletters

No abstract provided.


The Subject Librarian Newsletter, Creol, Fall 2015, Patti Mccall Jan 2015

The Subject Librarian Newsletter, Creol, Fall 2015, Patti Mccall

Libraries' Newsletters

No abstract provided.


The Subject Librarian Newsletter, Statistics, Fall 2015, Patti Mccall Jan 2015

The Subject Librarian Newsletter, Statistics, Fall 2015, Patti Mccall

Libraries' Newsletters

No abstract provided.


The Subject Librarian Newsletter, Mathematics, Fall 2015, Patti Mccall Jan 2015

The Subject Librarian Newsletter, Mathematics, Fall 2015, Patti Mccall

Libraries' Newsletters

No abstract provided.


The Subject Librarian Newsletter, Engineering And Computer Science, Fall 2015, Ven Basco Jan 2015

The Subject Librarian Newsletter, Engineering And Computer Science, Fall 2015, Ven Basco

Libraries' Newsletters

No abstract provided.


Foreword, Tim O'Connell, Garrett Hutson Jan 2015

Foreword, Tim O'Connell, Garrett Hutson

Research in Outdoor Education

The article offers information related to papers that were published in the publication "Research in Outdoor Education" Volume 13, as well as acknowledging the efforts of all who contributed to the publication.


The Adolescent Social Group In Outdoor Adventure Education: Social Connections That Matter, Jeremy Jostad, Jim Sibthorp, Mandy Pohja, John Gookin Jan 2015

The Adolescent Social Group In Outdoor Adventure Education: Social Connections That Matter, Jeremy Jostad, Jim Sibthorp, Mandy Pohja, John Gookin

Research in Outdoor Education

Outdoor adventure education (OAE) experiences provide a unique context for adolescents to develop social connections with their peers. The social group atmosphere is a complex area to study due to the group's multiple components. This study examined key components of a social group model to understand the influences they have on the development of social connections. Using a group identification framework, this study investigated how 237 students from 22 different courses from the National Outdoor Leadership School (NOLS) connected with their groups. The results suggest that goal conflict with other students, social status, leadership consideration and gender ratio were significantly …


Front Matter, Coalition For Education In The Outdoors (Ceo) Jan 2015

Front Matter, Coalition For Education In The Outdoors (Ceo)

Research in Outdoor Education

The Coalition for Education in the Outdoors is a non-profit network of outdoor and environmental education centers, nature centers, conservation and recreation organizations, outdoor education and experiential education associations, institutions of higher learning, public and private schools, fish and wildlife agencies, and businesses that share a mission the support and furtherance of outdoor education and its goals.

This article includes the Editors and Research Committee for Volume 13 as well as the Table of Contents.


Influences Of Resident Camp Experiences On Career Choice: A Case Study Of Female Alumnae, Barry A. Garst, Sarah Baughman, Anja Whittington, Ryan J. Gagnon Jan 2015

Influences Of Resident Camp Experiences On Career Choice: A Case Study Of Female Alumnae, Barry A. Garst, Sarah Baughman, Anja Whittington, Ryan J. Gagnon

Research in Outdoor Education

Few studies have explored the long-term impacts of camp experiences on career choice, although there is a need to better understand how camp experiences may influence this decision to guide staff recruitment and retention efforts. The purpose of this study was to examine the influence of camp experiences on future career paths for women. Twenty-two camp alumnae who attended an all-girls camp completed a retrospective online survey. Salient themes related to career impacts included human service career interest, outdoor career interest, leadership and interpersonal skill development, and social-emotional skill development. Considerations for future research include a national study of a …


The Use Of Biomarkers In Outdoor Education Research: Promises, Challenges, And The Development Of Evidence, Alan Ewert Jan 2015

The Use Of Biomarkers In Outdoor Education Research: Promises, Challenges, And The Development Of Evidence, Alan Ewert

Research in Outdoor Education

While widely used in research connected with outdoor education, self-report data can be subject to a number of issues related to validity and generalizability. This paper argues that biomarkers present another type of evidence that is equally or even more rigorous than self-report data. The paper describes several types of biomarkers that are commonly measured in other disciplines along with how data from those biomarkers are collected. Data from a recent study using two biomarkers commonly used for measuring stress is presented as an example of how the use of biomarkers can broaden the body of evidence being developed in …