Physical Sciences and Mathematics Commons^™

An Examination Of The Correlation Of Exploring Computer Science Course Performance And The Development Of Programming Expertise, Steven Mcgee, Ronald I. Greenberg, Randi Mcgee-Tekula, Jennifer Duck, Andrew M. Rasmussen, Lucia Dettori, Dale F. Reed

Computer Science: Faculty Publications and Other Works

This study investigated patterns in the development of computational thinking and programming expertise in the context of the Exploring Computer Science (ECS) program, a high school introductory CS course and professional development program designed to foster deep engagement through equitable inquiry around CS concepts. Prior research on programming expertise has identified three general areas of development --- program comprehension, program planning, and program generation. The pedagogical practices in ECS are consistent with problem solving approaches that support the development of programming expertise. The study took place in a large urban district during the 2016--17 school year with 28 ECS teachers …

The Santa Clara, 2019-02-28, Santa Clara University

The Santa Clara

No abstract provided.

2017 - Monterey County Crop Report

Monterey County Crop Reports

2017 annual report pertaining to agriculture in Monterey County, California.

Berikut Obat Sipilis De Nature Yang Terbukti Ampuh, Roni Andriansyah

Roni Andriansyah

Penyebab Penyakit Sipilis Dan Obat Ampuh De Nature, Roni Andriansyah

Roni Andriansyah

Cara Membeli Obat Sipilis De Nature Harga Pabrik, Roni Andriansyah

Roni Andriansyah

Obat De Nature Sembuhkan Sipilis Paling Manjur, Roni Andriansyah

Roni Andriansyah

Penyakit Sipilis Sembuh Cepat Dengan Obat De Nature, Roni Andriansyah

Roni Andriansyah

Nama Obat De Nature Yang Mujarab Mengobati Sipilis, Roni Andriansyah

Roni Andriansyah

Inilah Harga Obat Sipilis Dari De Nature Yang Benar, Roni Andriansyah

Roni Andriansyah

Harga Diskon Paket Obat Sipilis De Nature, Roni Andriansyah

Roni Andriansyah

The Santa Clara, 2019-02-14, Santa Clara University

The Santa Clara

No abstract provided.

Modeling The Spread And Prevention Of Malaria In Central America, Michael Huber

CODEE Journal

In 2016, the World Health Organization (WHO) estimated that there were 216 million cases of Malaria reported in 91 countries around the world. The Central American country of Honduras has a high risk of malaria exposure, especially to United States soldiers deployed in the region. This article will discuss various aspects of the disease, its spread and its treatment and the development of models of some of these aspects with differential equations. Exercises are developed which involve, respectively, exponential growth, logistics growth, systems of first-order equations and Laplace transforms. Notes for instructors are included.

Sir Models: Differential Equations That Support The Common Good, Lorelei Koss

CODEE Journal

This article surveys how SIR models have been extended beyond investigations of biologically infectious diseases to other topics that contribute to social inequality and environmental concerns. We present models that have been used to study sustainable agriculture, drug and alcohol use, the spread of violent ideologies on the internet, criminal activity, and health issues such as bulimia and obesity.

Climate Change In A Differential Equations Course: Using Bifurcation Diagrams To Explore Small Changes With Big Effects, Justin Dunmyre, Nicholas Fortune, Tianna Bogart, Chris Rasmussen, Karen Keene

CODEE Journal

The environmental phenomenon of climate change is of critical importance to today's science and global communities. Differential equations give a powerful lens onto this phenomenon, and so we should commit to discussing the mathematics of this environmental issue in differential equations courses. Doing so highlights the power of linking differential equations to environmental and social justice causes, and also brings important science to the forefront in the mathematics classroom. In this paper, we provide an extended problem, appropriate for a first course in differential equations, that uses bifurcation analysis to study climate change. Specifically, through studying hysteresis, this problem highlights …

Linking Differential Equations To Social Justice And Environmental Concerns

CODEE Journal

Special issue of the CODEE Journal in honor of its founder, Professor Robert Borrelli.

The Ocean And Climate Change: Stommel's Conceptual Model, James Walsh

CODEE Journal

The ocean plays a major role in our climate system and in climate change. In this article we present a conceptual model of the Atlantic Meridional Overturning Circulation (AMOC), an important component of the ocean's global energy transport circulation that has, in recent times, been weakening anomalously. Introduced by Henry Stommel, the model results in a two-dimensional system of first order ODEs, which we explore via Mathematica. The model exhibits two stable regimes, one having an orientation aligned with today's AMOC, and the other corresponding to a reversal of the AMOC. This material is appropriate for a junior-level mathematical …

The Mathematics Of Gossip, Jessica Deters, Izabel P. Aguiar, Jacquie Feuerborn

CODEE Journal

How does a lie spread through a community? The purpose of this paper is two-fold: to provide an educational tool for teaching Ordinary Differential Equations (ODEs) and sensitivity analysis through a culturally relevant topic (fake news), and to examine the social justice implications of misinformation. Under the assumption that people are susceptible to, can be infected with, and recover from a lie, we model the spread of false information with the classic Susceptible-Infected-Recovered (SIR) model. We develop a system of ODEs with lie-dependent parameter values to examine the pervasiveness of a lie through a community.

The model presents the opportunity …

Kremer's Model Relating Population Growth To Changes In Income And Technology, Dan Flath

CODEE Journal

For thousands of years the population of Earth increased slowly, while per capita income remained essentially constant, at subsistence level. At the beginning of the industrial revolution around 1800, population began to increase very rapidly and income started to climb. Then in the second half of the twentieth century as a demographic transition began, the birth and death rates, as well as the world population growth rate, began to decline. The reasons for these transitions are hotly debated with no expert consensus yet emerging. It's the problem of economic growth. In this document we investigate a mathematical model of economic …

A Model Of The Transmission Of Cholera In A Population With Contaminated Water, Therese Shelton, Emma Kathryn Groves, Sherry Adrian

CODEE Journal

Cholera is an infectious disease that is a major concern in countries with inadequate access to clean water and proper sanitation. According to the World Health Organization (WHO), "cholera is a disease of inequity--an ancient illness that today sickens and kills only the poorest and most vulnerable people\dots The map of cholera is essentially the same as a map of poverty." We implement a published model (Fung, "Cholera Transmission Dynamic Models for Public Health Practitioners," Emerging Themes in Epidemiology, 2014) of a SIR model that includes a bacterial reservoir. Bacterial concentration in the water is modeled by the Monod …

A Note On Equity Within Differential Equations Education By Visualization, Younes Karimifardinpour

CODEE Journal

The growing importance of education equity is partly based on the premise that an individual's level of education directly correlates to future quality of life. Educational equity for differential equations (DEs) is related to achievement, fairness, and opportunity. Therefore, a pedagogy that practices DE educational equity gives a strong foundation of social justice. However, linguistic barriers pose a challenge to equity education in DEs. For example, I found myself teaching DEs either in classrooms with a low proficiency in the language of instruction or in multilingual classrooms. I grappled with a way to create an equity educational environment that supported …

Consensus Building By Committed Agents, William W. Hackborn, Tetiana Reznychenko, Yihang Zhang

CODEE Journal

One of the most striking features of our time is the polarization, nationally and globally, in politics and religion. How can a society achieve anything, let alone justice, when there are fundamental disagreements about what problems a society needs to address, about priorities among those problems, and no consensus on what constitutes justice itself? This paper explores a model for building social consensus in an ideologically divided community. Our model has three states: two of these represent ideological extremes while the third state designates a moderate position that blends aspects of the two extremes. Each individual in the community is …

An Epidemiological Math Model Approach To A Political System With Three Parties, Selenne Bañuelos, Ty Danet, Cynthia Flores, Angel Ramos

CODEE Journal

The United States has proven to be and remains a dual political party system. Each party is associated to its own ideologies, yet work by Baldassarri and Goldberg in Neither Ideologues Nor Agnostics show that many Americans have positions on economic and social issues that don't fall into one of the two mainstream party platforms. Our interest lies in studying how recruitment from one party into another impacts an election. In particular, there was a growing third party presence in the 2000 and 2016 elections. Motivated by previous work, an epidemiological approach is taken to treat the spread of ideologies …

Law School News: Roger Williams University Announces 11th President 02-13-2019, Ed Fitzpatrick

Life of the Law School (1993- )

No abstract provided.

Metrics And Methods Used To Compare Student Performance Data In Chemistry Education Research Articles, Michael R. Mack, Cory Hensen, Jack Barbera

Chemistry Faculty Publications and Presentations

Quasi-experiments are common in studies that estimate the effect of instructional interventions on student performance outcomes. In this type of research, the nature of the experimental design, the choice in assessment, the selection of comparison groups, and the statistical methods used to analyze the comparison data dictate the validity of causal inferences. Therefore, gathering and reporting validity evidence in causal studies is of utmost importance, especially when conclusions have real policy implications for students and faculty, among other stakeholders. This review examines 24 articles that reported quantitative investigations of the effect of instructional interventions on performance-based outcomes conducted within undergraduate …

Exploring The Behavior Of Model Fit Criteria In The Bayesian Approximate Measurement Invariance: A Simulation Study, Abeer Atallah S. Alamri

USF Tampa Graduate Theses and Dissertations

Measurement invariance (MI) is conducted to ensure that differences found in the results of group comparisons are due to true substantive differences and not methodological artifacts. Previous cross-cultural and cross-national studies with large number of groups showed that the advanced measurement invariance level was rarely held when utilizing the traditional (frequentist) MI approach. The Bayesian approximate measurement invariance (BAMI) was introduced to override the traditional MI strict assumption, because trivial non-invariance in parameters across groups is allowed. Although the concept of the BAMI, which has been utilized since 2013, was incorporated into the context of structural equation modeling, there is …

The Santa Clara, 2019-02-07, Santa Clara University

The Santa Clara

No abstract provided.

1995 - Monterey County Water Conservation Alternatives - An Analysis

Monterey County Water Resources Agency Engineering Reports

The major goal of this study ,prepared by Agland Investment Services, Inc. on behalf of the Monterey County Water Resources Agency, was to estimate the direct and regional economic impacts of different policies aimed at encouraging agricultural water conservation in the Salinas Valley. The study also looked at combinations of conservation measures which could provide a least cost conservation contribution to the seawater intrusion problem. Agland concluded that policymakers should consider adopting a least cost approach when they considered the mix of infrastructure projects and urban and rural conservation measures.

Assessing The Effectiveness Of Computer Science Rpps: The Case Of Cafecs, Erin Henrick, Steven Mcgee, Ronald I. Greenberg, Lucia Dettori, Andrew M. Rasmussen, Don Yanek, Dale F. Reed

Computer Science: Faculty Publications and Other Works

Research Practice Partnerships (RPPs) are a relatively

recent development as a potential strategy to address the

complex challenges in computer science education. Consequently,

there is little guidance available for assessing the effectiveness of

RPPs. This paper describes the formative evaluation approach

used to assess the progress of the first year of the formalized RPP,

Chicago Alliance for Equity in Computer Science (CAFE´CS).

This paper contributes to the RPP literature by providing a case

study of how an RPP effectiveness framework can be adapted

and used to inform partnership improvement efforts in computer

science education.

Standardizing Facilitator Development For Exploring Computer Science Professional Development, Steven Mcgee, John Wachen, Lucia Dettori, Don Yanek, Faythe Brannon, Andrew M. Rasmussen, Dale F. Reed, Ronald I. Greenberg

Computer Science: Faculty Publications and Other Works

A key strategy for broadening CS participation

in the Chicago Public Schools (CPS) has been the enactment

of a high school CS graduation requirement. The Exploring

Computer Science (ECS) curriculum and professional development

(PD) program serve as a core foundation for supporting

enactment of this policy. The CAFE´CS researcher-practitioner

partnership provides support for ECS implementation in CPS.

An important part of the sustainability of the ECS PD model in

CPS is the development of local workshop facilitators. Potential

facilitators have generally been selected based on the CAFE´CS

team’s personal familiarity with active ECS teachers. Once

selected, teachers engage in a …