Digital Commons Network^™

Interview: Beth Mcneil, Ethan Edwards

The Journal of Purdue Undergraduate Research

Beth McNeil is the Dean of Libraries and Esther Ellis Norton Professor of Library Science at Purdue University.

Back Matter

The Journal of Purdue Undergraduate Research

No abstract provided.

Celebrating 10 Years Of Jpur

The Journal of Purdue Undergraduate Research

The year 2020 marks a decade of publication for the Journal of Purdue Undergraduate Research.

Editorial, Jay T. Akridge

The Journal of Purdue Undergraduate Research

Editorial by Jay T. Akridge, Provost and Executive Vice President for Academic Affairs and Diversity.

Urban Warfare: Emerging Geopolitical Conundrum, Bert Chapman

Libraries Faculty and Staff Presentations

Urban warfare is as old as human history. It is becoming increasingly important in international political and military planning due to increasing global urbanization and the presence of megacities (urban areas with populations exceeding 10 million) in many global regions and being in areas of recent and potential military conflict. 2018 World Bank data notes that approximately 56% of the world's population lives in urban areas which is up from 34% in 1960. Many of these megacities, including New York City, Los Angeles, Sao Paulo, Mumbai, Shanghai, and Manila are adjacent to oceanic waters and vulnerable to trade and supply …

A First Look At Forensic Analysis Of Sailfishos, Krassimir Tzvetanov, Umit Karabiyik

Faculty Publications

SailfishOS is a Linux kernel-based embedded device operation system, mostly deployed on cell phones. Currently, there is no sufficient research in this space, and at the same time, this operating system is gaining popularity, so it is likely for investigators to encounter it in the field. This paper focuses on mapping the digital artifacts pertinent to an investigation, which can be found on the filesystem of a phone running SailfishOS 3.2. Currently, there is no other known publicly available research and no commercially available solutions for the acquisition and analysis of this platform. This is a major gap, as the …

Strategies For Embedding Population Health Concepts Into Nursing Education, Kasey Jordan, Saria Lofton, Elizabeth Richards

School of Nursing Faculty Publications

Advances in community and public health are needed to address contemporary health needs, particularly poor health outcomes related to the social determinants of health and inequity. Nurses are ideally placed to promote meaningful advances in community and public health, collectively referred to as population health. Nurse educators can promote a deeper understanding of core population health concepts by threading these concepts throughout the academic nursing curricula in addition to standalone population or public health courses. Strategies for incorporating population health concepts in a variety of courses can be conceptualized through the themes emphasizing context, honoring community voices, cultivating community connection, …

Electromagnetic Characteristics Of The Soil, Abdul Salam, Usman Raza

Faculty Publications

The electromagnetic characteristics of the soil are discussed in this chapter. The characteristics of porous bedrock, soil medium, and impacts of rain attenuations are also presented. The models of dielectric soil properties are studied with a rigorous focus on the constitutive parameters of subsurface soil medium. Moreover, the permittivity and wavenumber in soil are explained. In addition, the frequency-dependent dielectric properties such as dispersion in soil, absorption characteristic, and penetration depth versus frequency are reviewed. Furthermore, the effective permittivity of soil–water mixture for through-the soil-propagation mechanism is analyzed thoroughly.

Wireless Underground Channel Modeling, Abdul Salam, Usman Raza

Faculty Publications

A comprehensive treatment of wireless underground channel modeling is presented in this chapter. The impacts of the soil on bandwidth and path loss are analyzed. A mechanism for the UG channel sounding and multipath characteristics analysis is discussed. Moreover, novel time-domain impulse response model for WUC is reviewed with the explanation of model parameters and statistics. Furthermore, different types of the through-the-soil wireless communications are surveyed. Finally, the chapter concludes with discussion of the UG wireless statistical model and path loss model for through-the-soil wireless communications in decision agriculture. The model presented in this chapter is also validated with empirical …

Signals In The Soil: An Introduction To Wireless Underground Communications, Abdul Salam, Usman Raza

Faculty Publications

In this chapter, wireless underground (UG) communications are introduced. A detailed overview of WUC is given. A comprehensive review of research challenges in WUC is presented. The evolution of underground wireless is also discussed. Moreover, different component of UG communications is wireless. The WUC system architecture is explained with a detailed discussion of the anatomy of an underground mote. The examples of UG wireless communication systems are explored. Furthermore, the differences of UG wireless and over-the-air wireless are debated. Different types of wireless underground channel (e.g., In-Soil, Soil-to-Air, and Air-to-Soil) are reported as well.

Signals In The Soil: Underground Antennas, Abdul Salam, Usman Raza

Faculty Publications

Antenna is a major design component of Internet of Underground Things (IOUT) communication system. The use of antenna, in IOUT, differs from traditional communication in that it is buried in the soil. Therefore, one of the main challenges, in IOUT applications, is to establish a reliable communication. To that end, there is a need of designing an underground-specific antenna. Three major factors that can impact the performance of a buried antenna are: (1) effect of high soil permittivity changes the wavelength of EM waves, (2) variations in soil moisture with time affecting the permittivity of the soil, and (3) difference …

Underground Phased Arrays And Beamforming Applications, Abdul Salam, Usman Raza

Faculty Publications

This chapter presents a framework for adaptive beamforming in underground communication. The wireless propagation is thoroughly analyzed to develop a model using the soil moisture as an input parameter to provide feedback mechanism while enhancing the system performance. The working of array element in the soil is analyzed. Moreover, the effect of soil texture and soil moisture on the resonant frequency and return loss is studied in detail. The wave refraction from the soil–air interface highly degrades the performance of the system. Furthermore, to beam steering is done to achieve high gain for lateral component improving the UG communication. The …

Current Advances In Internet Of Underground Things, Abdul Salam, Usman Raza

Faculty Publications

The latest developments in Internet of Underground Things are covered in this chapter. First, the IOUT Architecture is discussed followed by the explanation of the challenges being faced in this paradigm. Moreover, a comprehensive coverage of the different IOUT components is presented that includes communications, sensing, and system integration with the cloud. An in-depth coverage of the applications of the IOUT in various disciplines is also surveyed. These applications include areas such as decision agriculture, pipeline monitoring, border control, and oil wells.

Soil Moisture And Permittivity Estimation, Abdul Salam, Usman Raza

Faculty Publications

The soil moisture and permittivity estimation is vital for the success of the variable rate approaches in the field of the decision agriculture. In this chapter, the development of a novel permittivity estimation and soil moisture sensing approach is presented. The empirical setup and experimental methodology for the power delay measurements used in model are introduced. Moreover, the performance analysis is explained that includes the model validation and error analysis. The transfer functions are reported as well for soil moisture and permittivity estimation. Furthermore, the potential applications of the developed approach in different disciplines are also examined.

Signals In The Soil: Subsurface Sensing, Abdul Salam, Usman Raza

Faculty Publications

In this chapter, novel subsurface soil sensing approaches are presented for monitoring and real-time decision support system applications. The methods, materials, and operational feasibility aspects of soil sensors are explored. The soil sensing techniques covered in this chapter include aerial sensing, in-situ, proximal sensing, and remote sensing. The underlying mechanism used for sensing is also examined as well. The sensor selection and calibration techniques are described in detail. The chapter concludes with discussion of soil sensing challenges.

Decision Agriculture, Abdul Salam, Usman Raza

Faculty Publications

In this chapter, the latest developments in the field of decision agriculture are discussed. The practice of management zones in digital agriculture is described for efficient and smart faming. Accordingly, the methodology for delineating management zones is presented. Modeling of decision support systems is explained along with discussion of the issues and challenges in this area. Moreover, the precision agriculture technology is also considered. Moreover, the chapter surveys the state of the decision agriculture technologies in the countries such as Bulgaria, Denmark, France, Israel, Malaysia, Pakistan, United Kingdom, Ukraine, and Sweden. Finally, different field factors such as GPS accuracy and …

Autonomous Irrigation Management In Decision Agriculture, Abdul Salam, Usman Raza

Faculty Publications

In this chapter, the important application of autonomous irrigation management in the field decision agriculture is discussed. The different types of sensor-guided irrigation systems are presented that includes center pivot systems and drip irrigation systems. Their sensing and actuator components are with detailed focus on real-time decision-making and integration to the cloud. This chapter also presents irrigation control systems which takes, as an input, soil moisture and temperature from IOUT and weather data from Internet and communicate with center pivot based irrigation systems. Moreover, the system architecture is explored where development of the nodes including sensing and actuators is presented. …

Underground Wireless Channel Bandwidth And Capacity, Abdul Salam, Usman Raza

Faculty Publications

The UG channel bandwidth and capacity are vital parameters in wireless underground communication system design. In this chapter, a comprehensive analysis of the wireless underground channel capacity is presented. The impact of soil on return loss, bandwidth, and path loss is discussed. The results of underground multi-carrier modulation capacity are also outlined. Moreover, the single user capacity and multi-carrier capacity are also introduced with an in-depth treatment of soil texture, soil moisture, and distance effects on channel capacity. Finally, the chapter is concluded with a discussion of challenges and open research issues.

Modulation Schemes And Connectivity In Wireless Underground Channel, Abdul Salam, Usman Raza

Faculty Publications

In this chapter, a thorough treatment of the modulation schemes for UG Wireless is presented. The effects of soil texture and water content on the capacity of multi-carrier modulation in WUC are discussed. The multi-carrier capacity model results are analyzed. Moreover, the underground MIMO design for underground communications is explained thoroughly. An analysis of medium access in wireless underground is done as well. Furthermore, the soil properties are considered for cross-layer communications of UG wireless. The performance analysis of traditional modulation schemes is also considered. The soil moisture-based modulation approach is also explored in this chapter. The connectivity and diversity …

Variable Rate Applications In Decision Agriculture, Abdul Salam, Usman Raza

Faculty Publications

In this chapter, the variable rate applications (VRA) are presented for the field of decision agriculture. The characteristics of VRA control systems are described along with control hardware. Different types of VRA systems are discussed (e.g., liquid VRA systems and dry VRA systems). A case study is also explored in this regard. Moreover, recent advances and future trends are also outlined. Accordingly, a sustainable variable-rate irrigation scheduling is studied where different hardware and software component of the cyber-physical system are considered. Finally, chapter is concluded with a novel sensor deployment methodology.

Don Quixote And Catholicism, Michael Mcgrath

Purdue Studies in Romance Literatures

Four hundred years since its publication, Miguel de Cervantes’s Don Quixote continues to inspire and to challenge its readers. The universal and timeless appeal of the novel, however, has distanced its hero from its author and its author from his own life and the time in which he lived. The discussion of the novel’s Catholic identity, therefore, is based on a reading that returns Cervantes’s hero to Cervantes’s text and Cervantes to the events that most shaped his life. The authors and texts McGrath cites, as well as his arguments and interpretations, are mediated by his religious sensibility. Consequently, he …

The Making Of A Caribbean Avant-Garde: Postmodernism As Post-Nationalism, Therese Kaspersen Hadchity

Comparative Cultural Studies

Focusing on the Anglophone Caribbean, The Making of a Caribbean Avant-Garde describes the rise and gradual consolidation of the visual arts avant-garde, which came to local and international attention in the 1990s. The book is centered on the critical and aesthetic strategies employed by this avant-garde to repudiate the previous generation’s commitment to modernism and anti-colonialism. In three sections, it highlights the many converging factors, which have pushed this avant-garde to the forefront of the region’s contemporary scene, and places it all in the context of growing dissatisfaction with the post-colonial state and its cultural policies.

This generational transition has …

Interactional Research Into Problem-Based Learning, Susan M. Bridges, Rintaro Imafuku

Purdue University Press Books

Problem-based learning (PBL) has been deployed as a student-centered instructional approach and curriculum design in a wide range of academic fields across the world. The majority of educational research to date has focused on knowledge-based outcomes addressing why PBL is useful. Researchers of PBL are developing a growing interest in qualitative research with a process-driven orientation to examining learning interactions. It is essential to broaden this research base so as to support PBL designs and approaches to leading students into higher-order thinking and a deeper approach to learning.

Interactional Research Into Problem-Based Learning explores how students learn in an inquiry-led …

Publicly Accessible National Security Information Resources: An Untapped Treasure Trove, Bert Chapman

Libraries Faculty and Staff Presentations

This presentation demonstrates the wide variety of publicly accessible U.S. Government national security information resources. It includes information on the U.S. constitutional foundations of national security policy, a recent annual defense spending bill, documents from the White House/National Security Council, Department of Defense, various military branches including professional military educational institutions, assorted U.S. intelligence agencies, congressional legislation, congressional committee reports on legislation, congressional committee hearings, and reports from congressional support agencies such as the Congressional Budget Office. It concludes by stressing the multiple benefits provided by having public access to these information resources.

Examining The Factor Structure Of The Home Mathematics Environment To Delineate Its Role In Predicting Preschool Numeracy, Mathematical Language, And Spatial Skills, David J. Purpura, Yemimah A. King, Emily Rolan, Caroline Byrd Hornburg, Sara A. Schmitt, Sara A. Hart, Colleen M. Ganley

Purdue University Libraries Open Access Publishing Fund

A growing body of evidence suggests that the ways in which parents and preschool children interact in terms of home-based mathematics activities (i.e., the home mathematics environment; HME) is related to children’s mathematics development (e.g., primarily numeracy skills and spatial skills); however, this body of evidence is mixed with some research supporting the relation and others finding null effects. Importantly, few studies have explicitly examined the factor structure of the HME and contrasted multiple hypothesized models. To develop more precise models of how the HME supports children’s mathematics development, the structure of the HME needs to be examined and linked …

Construct-Specific And Timing-Specific Aspects Of The Home Environment For Children’S School Readiness, Yemimah A. King, Robert Duncan, German Posada, David J. Purpura

Purdue Center for Early Learning Faculty and Staff Publications

Prior evidence supports that the home environment is related to children’s development of school readiness skills. However, it remains unclear how construct- and timing-specific aspects of the home environment are related to children’s school readiness skills, unique from overall, stable aspects of home quality. Unpacking associations due to specific constructs and timing of the home environment may provide insights on the theoretical processes that connect the home environment to school readiness. Using data from the NICHD Study of Early Child Care and Youth Development (N = 1,364), the current study examines how timing (36 and 54 months) and constructs …

Effect Of Using A Nitrogen Atmosphere On Enzyme Hydrolysis At High Corn Stover Loadings In An Agitated Reactor, Antonio Carlos Freitas Dos Santos, Eduardo Ximenes, David Thompson, Allison E. Ray, Ryan Szeto, Kendra Erk, Bruce S. Dien, Michael R. Ladisch

School of Materials Engineering Faculty Publications

A comprehensive review of the literature shows that enzyme hydrolysis efficiency decreases with increased solids loadings at constant enzyme:cellulose ratios for pretreated lignocellulosic substrates. In seeking a mechanistic explanation for this phenomenon, we found that a nitrogen atmosphere enhances enzyme hydrolysis and minimizes the decrease in glucose yields as solids loadings are increased in an agitated bioreactor. For liquid hot water pretreated corn stover, at solids loadings of both 100 and 200 g/L and hydrolyzed for 72 hr in a 1 L bioreactor at pH 5.0 with 3.6 mg protein per g biomass, glucose yields were 55% in a nitrogen …

Standards: A Brief Overview And Look At Standards At Purdue University, Margaret Phillips, Paul B Mcpherson

Libraries Faculty and Staff Presentations

This presentation was given on August 6, 2020 as part of Elsevier’s Engineering Research Tools webinar series. Here is a link to a recording of the webinar: https://www.youtube.com/watch?v=Kl2zFPNLXYU

10 Theses On Feminist Economics (Or The Antagonism Between The Strike And Finance), Luci Cavallero, Verónica Gago

CLCWeb: Comparative Literature and Culture

In their article, “10 Theses on Feminist Economics (or the antagonism between the strike and finance),” Luci Cavallero and Verónica Gago are interested in a feminist economics that is able to redefine, based on the bodies and territories in conflict, labor and exploitation, communal and feminized modes of doing and resisting, and popular innovation in moments of crisis. They write from the position of having formed part of the organizing for the feminist strike that, since 2016, has driven what they characterize as a massive, radical, and transnational movement. They root the theses that they synthesize here in that dynamic …

Readymade Or Made [To Be] Ready, Replicant Or Surplus: Social Reproduction And The Biopolitics Of Abstraction Prefigured In Contemporary Art, Jaleh Mansoor

CLCWeb: Comparative Literature and Culture

The artist may be one of the last subject-positions within capitalism to determine their own labour under the sign of “creativity,” and to be held at an oblique angle to value productive labour; they are dialectically “free” to be creative (Adorno, Vishmidt, Stakemeir, Beech). But since 1973 if not 1915, artists mark this creative capacity as a process whereby reification has migrated from that of the object to that of the subject, to the artist-subject, now heightened in a post-industrial era of “feminized” and immaterial labour where service eclipses production. Artists in the “post medium condition” elaborate practices that track …