Digital Commons Network^™

The Impact Of Parental Involvement On A Structured Youth Program Experience: A Qualitative Inquiry, Mat D. Duerden, Peter A. Witt, Christopher J. Harrist

Faculty Publications

Parental involvement is an often proposed, but rarely researched, key element of youth programs. Questions remain regarding the impact of parental involvement on program processes and outcomes. Qualitative data were collected over a one-year period with youth participants (n=46), parents (n=26), and teachers (n=5) associated with an international immersion/service learning program for adolescents. Three main research questions guided the data analysis: (1) what role does parental involvement play in the youths’ experience in the program; (2) how does parental involvement in the program influence the parent/child relationship; and (3) what role does parental involvement play in terms of the program’s …

Dynamic Microtubules And Endomembrane Cycling Contribute To Polarity Establishment And Early Development Of Ectocarpus Mitospores, Jeffrey Jack Green, Diego Cordero Cervantes, Nick T. Peters, Kyle O. Logan, Darryl L. Kropf

Faculty Publications

Many zygotes and spores of brown algae are photosensitive and establish a developmental axis in accordance with directional light cues. Ectocarpus siliculosus is being advanced as a genetic and genomic model organism for investigating brown alga development, and this report investigates photopolarization of the growth axis of mitospores. When exposed to unidirectional light, mitospores photopolarized and established a growth axis such that germination was preferentially localized to the shaded hemisphere of the spore body. The roles of the microtubule cytoskeleton and endomembrane cycling in the photopolarization process were investigated using pharmacological agents. Disruption of microtubule dynamics progressively reduced the percentage …

Equality Between Adults And Children: Its Meaning, Implications, And Opposition, James G. Dwyer

Faculty Publications

Family law scholars have devoted much attention to equality among groups of adults and some attention to equality between groups of children. There has been little exploration, however, of the notion of equality between adults and children. In this Article, I first explain what it means at a basic, theoretical level to speak of such equality. I then identify some practical implications. Finally, I consider why there is great resistance to many practical implications of children's equality, even among those who would consider themselves advocates for child welfare.

Misused Concepts And Misguided Questions: Fundamental Confusions In Family Law Debates, James G. Dwyer

Faculty Publications

No abstract provided.

Sex And Statutory Uniformity: Harmonizing The Legal Treatment Of Semen, Myrisha S. Lewis

Faculty Publications

No abstract provided.

Learning How To Fish: Catch Shares And The Future Of Fishery Conservation, Jonathan H. Adler, Nathaniel Stewart

Faculty Publications

The hard choices being made in an effort to save the Atlantic cod fishery today are all too common, as policymakers continue to employ and rely upon failed conservation policies, leaving fisheries the world over poorly managed and under stress. By some measures, a majority of exploited fisheries are depleted or in decline. Even more troubling, new research suggests that those fisheries about which scientists know the least may be in the worst shape. Yet all is not lost—perhaps not even for the great Atlantic cod. These same assessments conclude that, with proper management, fishery yields could double while remaining …

Book Review Of The Integrated Church: Authentic Multicultural Ministry, By Tracy M. Lewis Giggetts (2011), David Penno

Faculty Publications

No abstract provided.

Book Review Of Finding Faithful Elders And Deacons, By Thabiti M. Anyabwile (2012), David Penno

Faculty Publications

No abstract provided.

Law, Sexuality, And Transnational Perspectives, Holning S. Lau

Faculty Publications

No abstract provided.

An Analysis Of Research Trends In Dissertations And Theses Studying Blended Learning, Jeffrey S. Drysdale, Charles R. Graham, Kristian J. Spring, Lisa R. Halverson

Faculty Publications

This article analyzes the research of 205 doctoral dissertations and masters' theses in the domain of blended learning. A summary of trends regarding the growth and context of blended learning research is presented. Methodological trends are described in terms of qualitative, inferential statistics, descriptive statistics, and combined approaches to data analysis. Research topics are divided into nine topics (learner outcomes, dispositions, instructional design, interaction, comparison, demographics, technology, professional development, and other), each containing several sub-topics. Patterns in these topics are analyzed to identify gaps in research and to highlight opportunities for future research as the field of blended learning continues …

Mechanical Properties Of Human Amniotic Fluid Stem Cells Using Nanoindentation, Ashkan Aryaei, Ambalangodage Jayasuriya

Faculty Publications

The aim of this study was to obtain nanomechanical properties of living cells focusing on human amniotic fluid stem (hAFS) cell using nanoindentation techniques. We modified the conventional method of atomic force microscopy (AFM) in aqueous environment for cell imaging and indentation to avoid inherent difficulties. Moreover, we determined the elastic modulus of murine osteoblast (OB6) cells and hAFS cells at the nucleus and cytoskeleton using force–displacement curves and Hertz theory. Since OB6 cell line has been widely used, it was selected to validate and compare the obtained results with the previous research studies. As a result, we were able …

Evaluation Findings From Santa Cruz County’S “Roots & Wings” Initiative, Kathy Lemon Osterling, Amy D'Andrade

Faculty Publications

This report provides new findings on three outcome areas within the Roots and Wings Initiative: 1) systems change to promote concurrent planning and permanency (Staff Permanency Survey results), 2) recruitment and licensing outcomes, 3) Resource home questionnaire results, and 4) long-term outcomes related to permanency, placement stability and sibling placements. Overall, there are a number of indicators that are changing in the intended direction, suggesting that Roots and Wings activities are influencing key outcomes.

You, Your Neurons, And Free Will: Concerns About Reductionism And The Popularization Of Cognitive Science, Karl G. D. Bailey

Faculty Publications

No abstract provided.

An Allele Of Sequoia Dominantly Enhances A Trio Mutant Phenotype To Influence Drosophila Larval Behavior, Kathryn E. Dean, April Fields, Marcus J. Geer, Eric C. King, Eric C. Liebl

Faculty Publications

No abstract provided.

Ethical Implications Of Intellectual Property In Africa, Dick Kawooya

Faculty Publications

No abstract provided.

Diets Of Two Species Of Horned Lizards (Phrynosoma Modestum And P. Solare) From Mexico, J. A. Lemos-Espinal, Christopher J. Dibble, Geoffrey R. Smith

Faculty Publications

No abstract provided.

Planning Prompts As A Means Of Increasing Rates Of Immunization And Preventive Screening, Hengchen Dai, Katherine L. Milkman, John Beshears, James J. Choi, David Laibson, Brigitte C. Madrian

Faculty Publications

Building on psychological insights about the way people make decisions, behavioral scientists have proposed various methods to increase behaviors that promote welfare without limiting freedom of choice (Thaler & Sunstein, 2008). Recently, researchers have begun exploring the power of such methods for encouraging people to engage in beneficial health-related behaviors, particularly those that are often put off or forgotten (Loewenstein, Brennan, & Volpp, 2007). For example, motivated by evidence of substantial inertia at the status quo, researchers have demonstrated that if people are automatically assigned an appointment to receive a flu shot (while retaining the right to change or cancel …

Awakening The Slumbering Giant: How Horizontal Drilling Technology Brought The Endangered Species Act To Bear On Hydraulic Fracturing, Kalyani Robbins

Faculty Publications

Hydraulic fracturing (also known as “fracking”) is nothing new. It dates back to the 1940s and drew little environmental attention or concern for most of its existence. It is a form of natural gas extraction that involves pumping water, chemicals, and sand slurry into a well at extremely high pressure in order to fracture the surrounding rock formation and prop open passages. This frees up the trapped natural gas to flow from the resulting rock fractures to the production well for capture. Fracking operations have evolved from using a range of 20,000 to 80,000 gallons of water per well to …

No One Best Way: Work-Family Strategies, The Gendered Division Of Parenting, And The Contemporary Marriages Of Mothers And Fathers, W. Bradford Wilcox, Jeffrey P. Dew

Faculty Publications

The gender revolution of the last half-century has dramatically reshaped the nature, quality, and stability of marriage and parenthood in the United States. A half-century ago, most married mothers did not work outside the home, and most men and women preferred this arrangement. But over the course of the second half of the twentieth century, mothers streamed into the labor force, fathers devoted more time to childcare and housework, and public opinion largely swung behind these changes, with most Americans expressing normative support for working mothers, as well as for more egalitarian relationships between mothers and fathers in the home …

Prediction Of Sawdust Pyrolysis Yields From A Flat-Flame Burner Using The Cpd Model, Aaron D. Lewis, Thomas H. Fletcher

Faculty Publications

High heating rate pyrolysis experiments were performed on a softwood sawdust in a flat-flame burner reactor at temperatures from 1163 to 1433 K with particle residence times ranging from 23 to 102 ms at atmospheric pressure. Volatile yields of the 45−75 μm sawdust were measured and are believed to be similar to those that would occur in an industrial entrained-flow combustor or gasifier. A refractory tar yield near 1.5 wt % (dry, ash-free) was measured. A high percentage of the fully pyrolyzed sawdust char was spherical, having lost the original sawdust structure. It is suggested that the morphology of sawdust …

The Effects Of Practice On The Concurrent Performance Of A Speech And Postural Task In Persons With Parkinson Disease And Healthy Controls, Christopher Dromey, K Bo Foreman, Stuart Sondrup, Eon Jarvis, Shawn Nissen, Leland E. Dibble

Faculty Publications

Purpose. Persons with Parkinson disease (PD) demonstrate deficits in motor learning as well as bidirectional interference (the performance of one task concurrently interferes with the performance of another task) during dual-task performance. Few studies have examined the practice dosages necessary for behavioral change in rehabilitation relevant tasks. Therefore, to compare the effects of age and PD on motor learning during dual-task performance, this pilot study examined persons with PD as well as neurologically healthy participants during concurrent performance of postural and speaking tasks. Methods. Seven persons with PD and 7 healthy age-matched and 10 healthy young control subjects were tested …

Orientocreadium Batrachoides Tubangui, 1931 (Orientocreadiidae): The Only Trematode Parasite Of Clarias Gariepinus (Burchell, 1822) (Clariidae) From The Asi River (Southern Turkey), Tayha Tepe, Mehmet Cemal Oğuz, Mark C. Belk, Remzi Özgen

Faculty Publications

Objective: Some information is available about the parasite fauna and incidence for Clarias gariepinus in Turkey, but digenean parasites have received little attention. The purpose of the study is to contribute to the parasite fauna of Turkey.

Methods: From 2007 to 2008, a total 63 Clarias gariepinus that were caught in the Asi River were purchased from the fish market in Hatay and brought on ice to the Parasitology Research Laboratory at Atatürk University. The fish were dissected. The obtained parasites were fixed with AFA, dyed with Mayer’s Carmalum, and mounted with Canada Balsam.

Results: Forty-eight fish were infected with …

Respite Care, Marital Quality, And Stress In Parents Of Children With Autism Spectrum Disorders, Amber Harper, Tina Taylor, James Harper, Susanne Olsen Roper, Mikle South

Faculty Publications

Parents of children with autism spectrum disorders (ASD) are at risk for having higher stress and lower marital quality than other parents. Survey data regarding respite care, marital quality, and daily hassles and uplifts were obtained from 101 mother-father dyads who were together raising at least one child with ASD (total # of children = 118). Number of hours of respite care was positively related to improved marital quality for both husbands and wives, such that a one-hour increase in weekly respite care was associated with a one-half standard deviation increase in marital quality. This relationship was significantly mediated by …

Perceived Food And Labor Equity And School Attendance Among Ugandan Children Living In Kin Care, Jini Roby, Stacey Shaw, Laurel George

Faculty Publications

Emerging research suggests that biological relatedness contributes to differential treatment between children being raised by kin and the biological children in the caregiver’s household. This potential concern may be elevated especially when household resources are stretched thin. In this study, 518 Ugandan youth and their caregivers were interviewed individually, examining the association between relatedness and perceived food and work equity, and school attendance. Household income, but not relatedness, was negatively associated with food inequity. However, relatedness was positively associated with perceived disparity in the distribution of work among children living in the household, and with children’s school attendance. These findings …

A Force Based Model Of Individual Cell Migration With Discrete Attachment Sites And Random Switching Terms, J. C. Dallon, Matthew Scott, William V. Smith

Faculty Publications

A force based model of cell migration is presented which gives new insight into the importance of the dynamics of cell binding to the substrate. The main features of the model are the focus on discrete attachment dynamics, the treatment of the cellular forces as springs, and an incorporation of the stochastic nature of the attachment sites. One goal of the model is to capture the effect of the random binding and unbinding of cell attachments on global cell motion. Simulations reveal one of the most important factor influencing cell speed is the duration of the attachment to the substrate. …

Cell Speed Is Independent Of Force In A Mathematical Model Of Amoeboidal Cell Motion With Random Switching Terms., J. C. Dallon, Emily J. Evans, Christopher Grant, William V. Smith

Faculty Publications

In this paper the motion of a single cell is modeled as a nucleus and multiple integrin based adhesion sites. Numerical simulations and analysis of the model indicate that when the stochastic nature of the adhesion sites is a memoryless and force independent random process, the cell speed is independent of the force these adhesion sites exert on the cell. Furthermore, understanding the dynamics of the attachment and detachment of the adhesion sites is key to predicting cell speed. We introduce a differential equation describing the cell motion and then introduce a conjecture about the expected drift of the cell, …

The Impact Of Coastal Phytoplankton Blooms On Ocean-Atmosphere Thermal Energy Exchange: Evidence From A Two-Way Coupled Numerical Modeling System, Jason K. Jolliff, Travis A. Smith, Charlie N. Barron, Sergio Derada, Stephanie C. Anderson, Richard W. Gould, Robert A. Arnone

Faculty Publications

A set of sensitivity experiments are performed with a two-way coupled and nested ocean-atmosphere forecasting system in order to deconvolve how dense phytoplankton stocks in a coastal embayment may impact thermal energy exchange processes. Monterey Bay simulations parameterizing solar shortwave transparency in the surface ocean as an invariant oligotrophic oceanic water type estimate consistently colder sea surface temperature (SST) than simulations utilizing more realistic, spatially varying shortwave attenuation terms based on satellite estimates of surface algal pigment concentration. These SST differences lead to an similar to 88% increase in the cumulative turbulent thermal energy transfer from the ocean to the …

Local Filters Limit Species Diversity, But Species Pools Determine Composition, Tara K. Rajaniemi, Deborah E. Goldberg, Roy Turkington, Andrew R. Dyer

Faculty Publications

In a series of three experiments, we tested for effects of species pools, resource stress, and species interactions on four aspects of community structure: species richness, evenness, species composition, and functional group composition. We also examined whether the impacts of species interactions on the community varied with resource availability or species pool. Communities of sand dune annuals grew from seed bank samples collected from two sites in three different years, so that the species pool differed at two levels: the source site and the year of seed bank collection. Communities experienced one of three irrigation treatments and a range of …

Dissection Of Quorum-Sensing Genes In Burkholderia Glumae Reveals Non-Canonical Regulation And The New Regulatory Gene Tofm For Toxoflavin Production, Ruoxi Chen, Inderjit K. Barphagha, Hari S. Karki, Jong Hyun Ham

Faculty Publications

Burkholderia glumae causes bacterial panicle blight of rice and produces major virulence factors, including toxoflavin, under the control of the quorum-sensing (QS) system mediated by the luxI homolog, tofI, and the luxR homolog, tofR. In this study, a series of markerless deletion mutants of B. glumae for tofI and tofR were generated using the suicide vector system, pKKSacB, for comprehensive characterization of the QS system of this pathogen. Consistent with the previous studies by other research groups, ΔtofI and ΔtofR strains of B. glumae did not produce toxoflavin in Luria-Bertani (LB) broth. However, these mutants produced high levels of toxoflavin …

A Comparison Of Boltzmann And Gibbs Definitions Of Microcanonical Entropy For Small Systems, Randall B. Shirts

Faculty Publications

Two different definitions of entropy, S= klnW, in the microcanonical ensemble have been competing for over 100 years. The Boltzmann/Planck definition is that W is the number of states accessible to the system at its energy E (also called the surface entropy). The Gibbs/Hertz definition is that W is the number of states of the system up to the energy E (also called the volume entropy). These two definitions agree for large systems but differ by terms of order N^-1 for small systems, where N is the number of particles in the system. For three analytical …