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

Physical Sciences and Mathematics Commons

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

Articles 1 - 30 of 31

Full-Text Articles in Physical Sciences and Mathematics

Teaching Statistics To Msw Students: Comparing Credit And Non-Credit Options, Ashley Davis, Rebecca G. Mirick Dec 2017

Teaching Statistics To Msw Students: Comparing Credit And Non-Credit Options, Ashley Davis, Rebecca G. Mirick

Rebecca Mirick

In professional disciplines like social work, students are expected to be able to understand and apply basic statistical concepts. Graduate programs differ in how they expect students to develop this ability; some require a full-credit statistics course as a prerequisite to admission, and others incorporate statistics into social work research courses. The for-credit requirement has a high financial and time cost for students. This exploratory study examined the feasibility of replacing this requirement with a brief, non-credit statistics course. MSW students (n=168) who took both types of courses were surveyed. No association was found between the type of course and …


Variational Bayes Estimation Of Discrete-Margined Copula Models With Application To Ime Series, Ruben Loaiza-Maya, Michael S. Smith Nov 2017

Variational Bayes Estimation Of Discrete-Margined Copula Models With Application To Ime Series, Ruben Loaiza-Maya, Michael S. Smith

Michael Stanley Smith

We propose a new variational Bayes estimator for high-dimensional copulas with discrete, or a combination of discrete and continuous, margins. The method is based on a variational approximation to a tractable augmented posterior, and is faster than previous likelihood-based approaches. We use it to estimate drawable vine copulas for univariate and multivariate Markov ordinal and mixed time series. These have dimension $rT$, where $T$ is the number of observations and $r$ is the number of series, and are difficult to estimate using previous methods. 
The vine pair-copulas are carefully selected to allow for heteroskedasticity, which is a feature of most ordinal …


Importing Democracy: Promoting Participatory Decision Making In Russian Forest Communities, Maria Tysiachniouk, Errol E. Meidinger Nov 2017

Importing Democracy: Promoting Participatory Decision Making In Russian Forest Communities, Maria Tysiachniouk, Errol E. Meidinger

Errol Meidinger

Published in Environmental Democracy Facing Uncertainty, Cécilia Claeys & Marie Jacqué, eds.

This paper describes how the World Wildlife Fund for Nature (WWF) jump-started democratic institutions in Russian rural communities to create a basis for social, environmental, and economic modernization within the Russian forestry sector. In Russia’s post-soviet markets and institutions, a host of multinational companies and large transnational environmental organizations sought to promote the restructuring of Russia’s legal and economic infrastructure and active subsidiaries in Russia. In order for modern forestry approaches to be imported, management practices that had developed in the West needed to be adapted to Russia’s …


Toward A Synthesis Of Conservation And Animal Welfare Science, David Fraser Nov 2017

Toward A Synthesis Of Conservation And Animal Welfare Science, David Fraser

David Fraser, PhD

Conservation biology and animal welfare science are multidisciplinary fields of research that address social concerns about animals. Conservation biology focuses on wild animals, works at the level of populations, ecological systems and genetic types, and deals with threats to biodiversity and ecological integrity. Animal welfare science typically focuses on captive (often domestic) animals, works at the level of individuals and groups, and deals with threats to the animals’ health and quality of life. However, there are many areas of existing or potential overlap: (i) many real-life problems, such as environmental contamination, urban development and transportation, create problems for animals that …


Rating Harms To Wildlife: A Survey Showing Convergence Between Conservation And Animal Welfare Views, S. Dubois, D. Fraser Nov 2017

Rating Harms To Wildlife: A Survey Showing Convergence Between Conservation And Animal Welfare Views, S. Dubois, D. Fraser

David Fraser, PhD

Human activities may cause conservation concerns when animal populations or ecosystems are harmed and animal welfare concerns when individuals are harmed. In general, people are concerned with one or the other, as the concepts may be regarded as separate or even at odds. An online purposive survey of 339 British Columbians explored differences between groups that varied by gender, residency, wildlife engagement level and value orientation (conservation-oriented or animal welfare-oriented), to see how they rated the level of harm to wildlife caused by different human activities. Women, urban residents, those with low wildlife engagement, and welfare-orientated participants generally scored activities …


Interpreting Main Effect With Moderation ‐‐ A View Through The Prism Of Causal Dissection, Xinshu Zhao Nov 2017

Interpreting Main Effect With Moderation ‐‐ A View Through The Prism Of Causal Dissection, Xinshu Zhao

Professor Xinshu ZHAO

In many disciplines of social sciences, it’s widely believed that main effect is uninterpretable when moderation exists. This research starts with an observation that four popular mode of data analysis, mediation, moderation,
curvilinearity, and confounding, all attempt to dissect an XY simple linear effect into various components.
Through this prism of theory, this research uncovers an important interpretation for the main effect, with or without moderation. The main effect, according to the theory of causal dissection, is a combination of two effects, namely on‐group effect and in‐group effect, while the in‐group effect is a weighted average of the XY effects …


A Conceptual Framework For Sustainable Water Management: The Case Of The Piracicaba River Basin, Brazil [Abstract], Amós Nascimento Nov 2017

A Conceptual Framework For Sustainable Water Management: The Case Of The Piracicaba River Basin, Brazil [Abstract], Amós Nascimento

Amós Nascimento

2 pages.


Biobased Products And The Leed® Rating System, Meredith Chambers, Mikesch Muecke Nov 2017

Biobased Products And The Leed® Rating System, Meredith Chambers, Mikesch Muecke

Mikesch Muecke

At the beginning of the 20th century, over 40% by weight of all the materials consumed through the production of goods within the United States were comprised of renewable resources (Matos and Wagner 1998). In contrast, by the end of the 20th century renewable material usage had dropped to less than 8% by weight (Matos and Wagner 1998). Combined with both an increase in the overall rate at which we consume resources as well as growing awareness of the inherently finite availability of nonrenewable resources, the early decades of the 21st century may mark the beginning of a shift back …


300-X-250-7.Jpg, Susunqq Online Oct 2017

300-X-250-7.Jpg, Susunqq Online

susunqq

Situs Judi BandarQ Paling Top Banget!

Pada kesempatan ini kita akan membagi informasi tentang situs judi bandarq paling top banget. Hal dalam permainan bandarq ini tidak bisa kita pungkiri lagi  banyak sekali penggemar nya dari kalangan mana pun ikut bermaina permainan yang satu ini. Di permainan bandarq online bisa membuat para pemain menyukai nya, apalagi pada saat bermain sangat menyenangkan. Permainan judi ini menggunakan kartu domini ( dam ) yang berbentuk persegi panjang gambar bintik – bintik bulat warna merah. Itulah ciri khas kartu domino yang sering di gunakan untuk permainan bandarq, aduq, dominoqq.

Dengan serunya permainan bandarq ini, ada …


The Diseños Project: A Geospatial Visualization Of The Environmental History Of California, 1769-1892, Rubén Mendoza Oct 2017

The Diseños Project: A Geospatial Visualization Of The Environmental History Of California, 1769-1892, Rubén Mendoza

Rubén Mendoza

No abstract provided.


Causal Inference In A Big Data World: The Roadmap, Laura Balzer Sep 2017

Causal Inference In A Big Data World: The Roadmap, Laura Balzer

Laura B. Balzer

No abstract provided.


Vr Usability From Elderly Cohorts: Preparatory Challenges In Overcoming Technology Rejection, George Coldham, David M. Cook Sep 2017

Vr Usability From Elderly Cohorts: Preparatory Challenges In Overcoming Technology Rejection, George Coldham, David M. Cook

Dr. David M Cook

Virtual Reality (VR) usability is an emerging area that has made rapid progress among early adopters, but has so far failed to address the concerns of late adopters. In particular, elderly cohorts stand to benefit greatly from VR technologies as they enter areas of assistive technology, gerontechnology, and authentic modes of training. This study examined technology rejection criteria from a sample of 19 retired persons by comparing normative and VR practices for the fundamental learning of navigation using Google Earth mapping. This research discovered that three dimensional fear was a major factor in determining the acceptance and rejection of VR …


Jessicahlawrencemastersportfolio.Pdf, Jessicah Lawrence Jul 2017

Jessicahlawrencemastersportfolio.Pdf, Jessicah Lawrence

Jessicah Lawrence

No abstract provided.


Estimating Pay Gaps For Workers With Disabilities: Implications From Broadening Definitions And Data Sets, Kevin F. Hallock, Xin Jin, Linda Barrington Jun 2017

Estimating Pay Gaps For Workers With Disabilities: Implications From Broadening Definitions And Data Sets, Kevin F. Hallock, Xin Jin, Linda Barrington

Kevin F Hallock

Purpose: To compare pay gap estimates across 3 different national survey data sets for people with disabilities relative to those without disabilities when pay is measured as wage and salary alone versus a (total compensation) definition that includes an estimate of the value of benefits.

Method: Estimates of the cost to the employers of employee benefits at the occupational level from an employer survey data set are matched to individual-level data in each of the 3 data sets. Multiple regression techniques are applied to estimate wage and salary and total compensation gaps between full-time men with and without …


The Potential Of Three Computer-Based Communication Activities For Supporting Older Adult Independent Living, Melinda Heinz, Jinmyoung Cho, Norene Kelly, Peter Martin, Johnny Wong, Warren Franke, Wen-Hua Hsieh, Joan Blaser Jun 2017

The Potential Of Three Computer-Based Communication Activities For Supporting Older Adult Independent Living, Melinda Heinz, Jinmyoung Cho, Norene Kelly, Peter Martin, Johnny Wong, Warren Franke, Wen-Hua Hsieh, Joan Blaser

Johnny Wong

Technology has become an increasingly integral part of life. For example, technology allows individuals to stay in touch with loved ones, obtain medical services through telehealthcare, and enjoy an overall higher quality of life. Particularly for older adults, using technology increases the likelihood that they will maintain their independence and autonomy. Long-distance caregiving has recently become a feasible option where caregivers for older adults can access reports and information about their loved one’s patterns that day (e.g., food and medication intake). Technology may be able to offset age-related challenges (e.g., caregiving, accessing healthcare, decreased social networks) by applying technology to …


Evidence-Based-Review-Of-Academic-Web-Search-Engines-Preprint.Pdf, Jody C. Fagan 5609471 May 2017

Evidence-Based-Review-Of-Academic-Web-Search-Engines-Preprint.Pdf, Jody C. Fagan 5609471

Jody C Fagan

Academic web search engines have become central to scholarly research. While the fitness of Google Scholar for research purposes has been examined repeatedly, Microsoft Academic and Google Books have not received much attention. Recent studies have much to tell us about the coverage and utility of Google Scholar, its coverage of the sciences, and its utility for evaluating researcher impact. But other aspects have been woefully understudied, such as coverage of the arts and humanities, books, and non-Western, non-English publications. User research has also tapered off. A small number of articles hint at the opportunity for librarians to become expert …


Random Regression Models Based On The Elliptically Contoured Distribution Assumptions With Applications To Longitudinal Data, Alfred A. Bartolucci, Shimin Zheng, Sejong Bae, Karan P. Singh May 2017

Random Regression Models Based On The Elliptically Contoured Distribution Assumptions With Applications To Longitudinal Data, Alfred A. Bartolucci, Shimin Zheng, Sejong Bae, Karan P. Singh

Shimin Zheng

We generalize Lyles et al.’s (2000) random regression models for longitudinal data, accounting for both undetectable values and informative drop-outs in the distribution assumptions. Our models are constructed on the generalized multivariate theory which is based on the Elliptically Contoured Distribution (ECD). The estimation of the fixed parameters in the random regression models are invariant under the normal or the ECD assumptions. For the Human Immunodeficiency Virus Epidemiology Research Study data, ECD models fit the data better than classical normal models according to the Akaike (1974) Information Criterion. We also note that both univariate distributions of the random intercept and …


Ispy: Threats To Individual And Institutional Privacy In The Digital World, Lori Andrews Apr 2017

Ispy: Threats To Individual And Institutional Privacy In The Digital World, Lori Andrews

Lori B. Andrews

What type of information is collected, who is viewing it, and what law librarians can do to protect their patrons and institutions.


Implementing Propensity Score Matching With Network Data: The Effect Of Gatt On Bilateral Trade, Luca De Benedictis, Bruno Arpino, Alessandra Mattei Mar 2017

Implementing Propensity Score Matching With Network Data: The Effect Of Gatt On Bilateral Trade, Luca De Benedictis, Bruno Arpino, Alessandra Mattei

Luca De Benedictis

Motivated by the evaluation of the causal effect of the General Agreement on Tariffs and Trade on bilateral international trade flows, we investigate the role of network structure in propensity score matching under the assumption of strong ignorability. We study the sensitivity of causal inference with respect to the presence of characteristics of the network in the set of confounders conditional on which strong ignorability is assumed to hold. We find that estimates of the average causal effect are highly sensitive to the presence of node-level network statistics in the set of confounders. Therefore, we argue that estimates may suffer …


Shining A Light On A University Special Collection With Data Visualization, Lisa Deluca, Katie M. Wissel Mar 2017

Shining A Light On A University Special Collection With Data Visualization, Lisa Deluca, Katie M. Wissel

Kathryn Wissel, MBA, MI

The Valente Collection is a 29,000 volume special collection that bridges Italian and Italian American history, literature, religion and art. It is a unique asset for the library and the university. One concept for promoting this collection and offering insight into the holdings is visualization. This goal of this poster is to help academic librarians assess which tools are most appropriate to create visualizations of current collections. Examples of different visualization types are explained including Excel Power Map. Tableau and Datawrapper.


Building Data And Information Literacy In The Undergraduate Chemistry Curriculum, Yasmeen Shorish, Barbara A. Reisner Mar 2017

Building Data And Information Literacy In The Undergraduate Chemistry Curriculum, Yasmeen Shorish, Barbara A. Reisner

Yasmeen Shorish

The Literature and Seminar sequence at James Madison University has been used to develop the chemistry information literacy skills of chemistry majors for over four decades. These courses have been continually updated to emphasize information literacy skills for the twenty-first century. This chapter describes the methods that have been developed to improve chemical, data and general information literacy at a large, public, primarily undergraduate institution. The focus of the first semester course, described in this chapter, is on skill building rather than teaching specific resources. It is a model of integration and collaboration between chemistry faculty and chemistry librarians. Changes …


(Wa: 085755475693) Jual Obat Aborsi Di Pariaman, Aborsi Cytotec, Aborsi Cytotec Feb 2017

(Wa: 085755475693) Jual Obat Aborsi Di Pariaman, Aborsi Cytotec, Aborsi Cytotec

aborsi cytotec

PERCAYAKAN pada saya maka anda tidak akan menyesal. jangan pernah coba coba dalam hal obat yg di minum karena obat yg sudah masuk ke dalam tubuh bekerja langsung ke dalam organ dan syaraf tubuh jadi pilihlah obat yg pasti, ambil obat yg berkualitas tinggi dan tentunya harga juga sedikit tinggi karna memang teruji keaslianya dan kualitas nya


Canada’S Regional Adaptation Collaboratives And Adaptation Platform: The Importance Of Scaling Up And Scaling Down Climate Change Governance Experiments, Adam Wellstead, Michael Howlett, Sreeja Nair, Jeremy Rayner Feb 2017

Canada’S Regional Adaptation Collaboratives And Adaptation Platform: The Importance Of Scaling Up And Scaling Down Climate Change Governance Experiments, Adam Wellstead, Michael Howlett, Sreeja Nair, Jeremy Rayner

Adam Wellstead

Policy experiments have often been touted as valuable mechanisms for ensuring sustainability transitions and climate change adaptation. However problems exist both in the definition of ‘experiments’, and in their design and realization. While valuable, most experiments examined in the literature to date have been small-scale micro-level deployments or evaluations of policy tools in which the most problematic element revolves around their “scaling-up” or diffusion. The literature on the subject has generally neglected the problems and issues related to another class of experiments in which macro or meso-level initiatives are ‘scaled-down’ to the micro-level. This paper examines a recent effort of …


Introduction To Empowered Partnerships: Community-Based Participatory Action Research For Environmental Justice, Christopher M. Bacon, Saneta Devuono-Powell, Mary Louise Frampton, Tony Lopresti, Camille Pannu Feb 2017

Introduction To Empowered Partnerships: Community-Based Participatory Action Research For Environmental Justice, Christopher M. Bacon, Saneta Devuono-Powell, Mary Louise Frampton, Tony Lopresti, Camille Pannu

Mary Louise Frampton

This article introduces a special section on empowered partnerships that deepens a dialogue initiated during the 2010 symposium titled EmPowered Partnerships: Community-Based Participatory Action Research for Environmental Justice. The articles in this section will be divided between issues 1 and 2 of the Journal. After briefly reviewing the definitions and the steps associated with community-based participatory action research (CBPAR), we identify the synergies connecting the underlying principles and values of the environmental justice (EJ) movement and CBPAR. The principles-based comparison is part of an ongoing effort to craft a framework that produces research partnerships that are simultaneously more responsive to …


(Wa: 085755475693) Jual Obat Aborsi Di Bengkulu, Aborsi Cytotec, Aborsi Cytotec Feb 2017

(Wa: 085755475693) Jual Obat Aborsi Di Bengkulu, Aborsi Cytotec, Aborsi Cytotec

aborsi cytotec

PERCAYAKAN pada saya maka anda tidak akan menyesal. jangan pernah coba coba dalam hal obat yg di minum karena obat yg sudah masuk ke dalam tubuh bekerja langsung ke dalam organ dan syaraf tubuh jadi pilihlah obat yg pasti, ambil obat yg berkualitas tinggi dan tentunya harga juga sedikit tinggi karna memang teruji keaslianya dan kualitas nya


Research Needs And Challenges In The Few System: Coupling Economic Models With Agronomic, Hydrologic, And Bioenergy Models For Sustainable Food, Energy, And Water Systems, Catherine L. Kling, Raymond W. Arritt, Gray Calhoun, David A. Keiser, John M. Antle, Jeffery G. Arnold, Miguel Carriquiry, Indrajeet Chaubey, Peter Christensen, Baskar Ganapathysubramanian, Philip Gassman, William Gutowski, Thomas W. Hertel, Gerritt Hoogenboom, Elena Irwin, Madhu Khanna, Pierre Mérel, Daniel J. Phaneuf, Andrew Plantinga, Stephen Polasky, Paul Preckel, Sergey Rabotyagov, Ivan Rudik, Silvia Secchi, Aaron Smith, Andrew Vanloocke, Calvin Wolter, Jinhua Zhao, Wendong Zhang Jan 2017

Research Needs And Challenges In The Few System: Coupling Economic Models With Agronomic, Hydrologic, And Bioenergy Models For Sustainable Food, Energy, And Water Systems, Catherine L. Kling, Raymond W. Arritt, Gray Calhoun, David A. Keiser, John M. Antle, Jeffery G. Arnold, Miguel Carriquiry, Indrajeet Chaubey, Peter Christensen, Baskar Ganapathysubramanian, Philip Gassman, William Gutowski, Thomas W. Hertel, Gerritt Hoogenboom, Elena Irwin, Madhu Khanna, Pierre Mérel, Daniel J. Phaneuf, Andrew Plantinga, Stephen Polasky, Paul Preckel, Sergey Rabotyagov, Ivan Rudik, Silvia Secchi, Aaron Smith, Andrew Vanloocke, Calvin Wolter, Jinhua Zhao, Wendong Zhang

Andy VanLoocke

On October 12–13, a workshop funded by the National Science Foundation was held at Iowa State University in Ames, Iowa with a goal of identifying research needs related to coupled economic and biophysical models within the FEW system. Approximately 80 people attended the workshop with about half representing the social sciences (primarily economics) and the rest from the physical and natural sciences. The focus and attendees were chosen so that findings would be particularly relevant to SBE research needs while taking into account the critical connectivity needed between social sciences and other disciplines. We have identified several major gaps in …


The Finney County, Kansas Community Assessment Process: Fact Book, Debra J. Bolton Phd, Shannon L. Dick M.S. Jan 2017

The Finney County, Kansas Community Assessment Process: Fact Book, Debra J. Bolton Phd, Shannon L. Dick M.S.

Dr. Debra Bolton

This multi-lingual/multi-cultural study was called, Community Assets Processt, by the groups that “commissioned” it: Finnup Foundation, Finney County K-State Research & Extension, Western Kansas Community Foundation, Finney County United Way, Finney County Health Department, United Methodist Community Health Center (UMMAM), Center for Children and Families, Garden City Recreation Commission, and the Garden City Cultural Relations Board, because we intend for this to be an ongoing discussion. An objective, for those promoting the study, was to connect foundation, state, and federal funding with activities or services that addressed the true needs of people living in Finney County. The group was looking …


Potential State-Level Carbon Revenue Under The Clean Power Plan, Daniel H. Karney Dec 2016

Potential State-Level Carbon Revenue Under The Clean Power Plan, Daniel H. Karney

Daniel H Karney

In 2015, the U.S. EPA issued the Clean Power Plan under which each state can set a mass-based target to meet its assigned electric power sector carbon dioxide emission reductions. If it proceeds, states can design policies to meet those requirements and also raise revenue via a carbon tax or cap-and-trade program with auctioned permits. We calculate each state’s potential revenue and demonstrate its significance. In 13 states, carbon revenue could replace all of corporate tax revenue. In addition, we collect budget projections from six key states to determine if and how carbon revenue can substantially reduce deficits. While such …


The Evolution Of A Volunteer Lake Protection Program, Maggie Shannon, Alexa A.E. Junker, Philip J. Nyhus, Cathy R. Bevier, Russell Cole Dec 2016

The Evolution Of A Volunteer Lake Protection Program, Maggie Shannon, Alexa A.E. Junker, Philip J. Nyhus, Cathy R. Bevier, Russell Cole

Philip J. Nyhus

No abstract provided.


Irresistible Bargains: Navigating The Surveillance Society, Robert M. Pallitto Dec 2016

Irresistible Bargains: Navigating The Surveillance Society, Robert M. Pallitto

Robert M Pallitto

Agents in contemporary societies are faced continually with choices regarding engagement with technological artifacts. They can choose to engage or decline engagement after considering the costs and benefits in each case. However, certain aspects of the surveillance society may be irresistible in a number of ways, so that refusal to engage with them is not a realistic option. The proliferation of the Internet of Things (IoT), particularly as embedded in “smart city” initiatives, helps to make surveillance technologies potentially irresistible. After laying the conceptual groundwork for discussing irresistible bargains, this essay offers a two-part normative critique, focusing on the asymmetrical …