Digital Commons Network^™

A Classification Of Consumer Involvement In New Product Development, Matt Sinclair, Ian Campbell

DRS Biennial Conference Series

Processes such as co-design, crowdsourcing and open design are challenging previously held notions about the role of the consumer within New Product Development. The degree and validity of consumer involvement in product creation varies according to the process concerned, however to date little research exists to classify this involvement. In this paper the New Product Development process is divided into four phases: conception, specification, design and manufacture. The ability of the consumer to influence each phase when engaged in design activity is assessed. A graphical classification of New Product Development strategies is presented, mapped against the commitment of the designer …

Incorporating Queer Understandings Of Sex And Gender In Design Research And Practice, Isabel Prochner

DRS Biennial Conference Series

This paper presents lessons to better incorporate queer understandings of sex and gender in design research and practice. There is much discussion in design literature about how sex and gender are interpreted and attributed in the design process and end products. Discussions revolve around attention toward female and male bodies, and stereotypes of femininity and masculinity. Nevertheless, this work rarely adopts queer understandings of sex and gender, or considers the experiences and identities of queer users. This prevents design research and practice from properly addressing social sustainability imperatives. Project results are based on a multi-part literature review and analysis, focused …

Deconstructing Expected Passenger Experience In Aiports, Philip J Kirk, Anna Harrison, Vesna Popovic, Ben Kraal

DRS Biennial Conference Series

The effect of passenger satisfaction on airport profitability has been widely acknowledged in the aviation industry. As a result, there has been much attention directed towards developing a deeper understanding of the factors that influence the passenger experience. In this paper, we explore passenger experience from a novel perspective - that of the activities expected to be undertaken by passengers while in the airport terminal building. Using the Taxonomy of Passenger Experience (TOPA) as our framework, we look at the pre-travel interview data of 48 participants. The results of our analysis are used to construct an activity-centred account of the …

Ecotone: Finding Common Ground Across Art, Science And Ranching, Leanne Elias, Christine Clark

DRS Biennial Conference Series

This paper uses the case study of Ecotone, a project that sought to bring disparate groups of people (artists, scientists, ranchers) together for shared discourse and potential action around agricultural environmental stress in southern Alberta, Canada. We explore this project from the perspective of an artist and designer. We examine a framework that values space, time and the pairing of people from different disciplines to encourage meaningful collaboration and interaction. Environmentalism and climate change are divisive topics, particularly in Alberta where the controversial oil and gas industry has made it Canada’s wealthiest province, resulting in both environmental indifference as well …

Privilege And Oppression: Towards A Feminist Speculative Design, Luiza Prado De O. Martins

DRS Biennial Conference Series

Though critical and speculative design have been increasingly relevant in discussing the social and cultural role of design, there has been a distinct lack of both theory and praxis aimed at questioning gender oppression. Departing from an intersectional feminist analysis of the influences and origins of speculative and critical design, this essay questions the underlying privilege that has been hindering the discussion on gender within the discipline and its role in propagating oppression; it then goes on to propose the concept of a “feminist speculative design” as an approach aimed at questioning the complex relationships between gender, technology and social …

Airport Security Screeners Expertise And Implications For Interface Design, Levi Swann, Vesna Popovic, Alethea Blackler, Ben Kraal

DRS Biennial Conference Series

This paper describes research investigating expertise and the types of knowledge used by airport security screeners. It applies a multi method approach incorporating eye tracking, concurrent verbal protocol and interviews. Results show that novice and expert security screeners primarily access perceptual knowledge and experience little difficulty during routine situations. During non-routine situations however, experience was found to be a determining factor for effective interactions and problem solving. Experts were found to use strategic knowledge and demonstrated structured use of interface functions integrated into efficient problem solving sequences. Comparatively, novices experienced more knowledge limitations and uncertainty resulting in interaction breakdowns. These …

Design Vs. The Design Industry, Joanna Boehnert

DRS Biennial Conference Series

Sustainable design; systems; epistemology; environment crisis; capitalismDesign can be understood as a practice that evolves as new cognitive and perceptual capacities enable a greater understanding of complexity, context and system dynamics. These emergent capacities create greater potential for social and technological innovation. This paper will argue that despite emergent skills, designers are not able to effectively address contemporary problems in a sustainable manner due to the systemic priorities of the design industry. This paper theorises “design” as the professional practice of creating new products, buildings, services and communication as a broader practice than the work that is produced within the …

Exploring Open Design For The Application Of Citizen Science; A Toolkit Methodology, Robert Phillips, Sharon Baurley

DRS Biennial Conference Series

The manufacture of mass produced quality assured products has previously remained within professional practice. Digital manufacture presents opportunities for producing products in low volumes, catering to bespoke requirements. This phenomenon can benefit parties where the manufacture of goods has previously been financially unobtainable, i.e. non-government and charitable organisations. Open hardware (accessible electronic components) can complement digital manufacture, enabling bespoke products to become intelligent, with the ability to sense, monitor, record and produce data. This paper tests an Open Design / Citizen Science toolkit drawing from practice based research and supporting ethnographic activities. The study documents design workshops with The Sussex …

Investigating The Changing Relation Between Consumer And Designer In Post-Industrial Design, Guido Hermans, Anna Valtonen

DRS Biennial Conference Series

This paper focuses on the post-industrial society and the changing object of design. Postindustrial design will be realized through the digitalization of the physical world and the advent of digital fabrication tools such as 3D printing that bridge the gap between digital design and physical goods. In post-industrial design professional designers will be concerned with designing toolkits and incomplete designs rather than fully determined products. The consumer will be adapting the incomplete design to his or her needs and desires in some way or another. This adaptation could be done with minimal involvement as well as by intensive participation. The …

Great Bay Nitrogen Non-Point Source Study, Philip Trowbridge, Matthew A. Wood, Thomas S. Burack, Vicki V. Quiram, Eugene J. Forbes

PREP Reports & Publications

The Great Bay Estuary is 21 square miles of tidal waters located in southeastern New Hampshire. It is one of 28 “estuaries of national significance” established under the Environmental Protection Agency’s National Estuary Program. The estuary is experiencing the signs of eutrophication, specifically, low dissolved oxygen, macroalgae blooms, and declining eelgrass habitat (DES, 2012).

Sixty-eight percent of the nitrogen that ends up in the Great Bay Estuary originates from sources spread across the watershed; the remainder derives from direct discharges of municipal wastewater treatment facilities (DES, 2010; PREP, 2013). In this report, these sources of nitrogen are called non-point sources …

Emerging From The Shadows: Civil War, Human Rights, And Peacebuilding Among Peasants And Indigenous Peoples In Colombia And Peru In The Late 20th And Early 21st Centuries, Charles A. Flowerday

Department of Anthropology: Theses and Student Research

Peacebuilding in Colombia and Peru following their late-20^th and early 21^st century civil wars is a challenging proposition. In this study, it becomes necessary as indigenous peoples and peasants resist domination by extractive industries and governments in their thrall. Whether they protest nonviolently or rebel in arms, they are targeted for human-rights violations, especially murder, disappearance and displacement. The armed actors, state, insurgency, paramilitaries or drug traffickers, destroy civic institutions (local or regional government) and the civil (nonprofit) sector and replace them with their own authoritarian versions. Therefore, peacebuilding has emphasized rebuilding civic institutions, civil society and local …

Design Ecologies, Locating And Amplifying Individual Motivations In A Collaborative Research Environment, Nicole Koltick

DRS Biennial Conference Series

Design practice exists as a complex and varied ecology of practitioners, methodologies and outcomes, one that harbors varying internal biases, tangents and conceptual stances. As designers interface with outside practitioners in science, engineering and theory, they are confronted with both problems and opportunities from these external domains that can appear quite foreign in both approach and outcome. Design process and its resultant biases are distinct and yet malleable and these unique aspects should be emphasized when confronting and collaborating with outside disciplines. In acknowledging our own disciplinary and project specific values, we must remain mindful of the risk of ceding …

The Child Maltreatment Survivor's Description Of The Process Of Becoming A Parent: A Grounded Theory Study, Roseanne E. Roberts

The Qualitative Report

This research study was conducted to investigate the processes experienced by survivors of child maltreatment as they became parents. The study utilized a grounded theory approach to answer the research question, “How do survivors of child maltreatment experience the process of becoming a parent?” The goal of the study was to generate a theory about the actions, interactions, and emotions experienced by survivors of child maltreatment as they became parents. It was the intention of this study to enhance the knowledge base of the psychological profession. The research problem, the methodology chosen to answer the research question, and the findings …

Plantcazyme: A Database For Plant Carbohydrate-Active Enzymes, Yanbin Yin, Nathan Mcginn, Rahil Taujale, Alexander Ekstrom

Faculty Articles, Papers, and Other Scholarship

PlantCAZyme is a database built upon dbCAN (database for automated carbohydrate active enzyme annotation), aiming to provide pre-computed sequence and annotation data of carbohydrate active enzymes (CAZymes) to plant carbohydrate and bioenergy research communities. The current version contains data of 43 790 CAZymes of 159 protein families from 35 plants (including angiosperms, gymnosperms, lycophyte and bryophyte mosses) and chlorophyte algae with fully sequenced genomes. Useful features of the database include: (i) a BLAST server and a HMMER server that allow users to search against our pre-computed sequence data for annotation purpose, (ii) a download page to allow batch downloading data …

Age-Associated Increases In Fkbp51 Facilitate Tau Neurotoxicity, Laura J. Blair

USF Tampa Graduate Theses and Dissertations

Tau is a protein which regulates microtubule stability and is heavily involved in axonal transport. This stability is dynamically controlled in part by over 40 phosphorylation sites across the tau protein which allows for binding and release from the microtubules. However, if abnormal hyperphosphorylation occurs, tau dissociates from the microtubules. Once released, the microtubules become unstable and the aberrant tau mislocalizes from the axon to the somatodendric compartment, where it aggregates. These aggregates are made of many pathological forms of tau including oligomeric species, paired helical filaments, and neurofibrillary tangles, all of which have associated toxicities. Tau pathology is a …

Diffuse Nutrient Pollution From Residential Catchments, Melissa Rachelle Butcher

USF Tampa Graduate Theses and Dissertations

Nonpoint source nutrient pollution is diffuse pollution lacking discrete origin and conveyance. This thesis synthesizes and critically reviews research on residential nitrogen and phosphorus loss to stormwater runoff and leaching. The evaluation pulls from research covering influential socio-demographic indicators, such as use of lawn maintenance services and homeowner fertilizer practices. The extent to which such social and economic factors may influence the prevalence and fate of diffuse nutrients in stormwater runoff from residential areas has not been adequately established. Understanding the source and influencing factors of diffuse nutrient pollution is important in order to effectively protect surface and groundwater resources. …

Inactivation Of Ascaris In Double-Vault Urine-Diverting Composting Latrines In Panama: Methods And Environmental Health Engineering Field Applications, Daragh A. Gibson

USF Tampa Graduate Theses and Dissertations

The United Nations Millennium Development Goals have prioritized improving access to sanitation, but unfortunately about a third of the global population is still without an improved sanitation source and one billion still practice open defecation. Lack of access to adequate and safe sanitation means the proliferation of dangerous pathogens in the environment, especially soil-transmitted helminths (STHs). In the Bocas del Toro Province of Panama (and similar locations in the world), composting latrines have been built in many of the indigenous communities in the area. They are a form of dry or ecological sanitation and are designed to produce an end …

Cross-Study Validation For The Assessment Of Prediction Algorithms, Christoph Bernau, Markus Riester, Anne-Laure Boulesteix, Giovanni Parmigiani, Curtis Huttenhower, Levi Waldron, Lorenzo Trippa

Publications and Research

Motivation: Numerous competing algorithms for prediction in high-dimensional settings have been developed in the statistical and machine-learning literature. Learning algorithms and the prediction models they generate are typically evaluated on the basis of cross-validation error estimates in a few exemplary datasets. However, in most applications, the ultimate goal of prediction modeling is to provide accurate predictions for independent samples obtained in different settings. Cross-validation within exemplary datasets may not adequately reflect performance in the broader application context. Methods: We develop and implement a systematic approach to ‘cross-study validation’, to replace or supplement conventional cross-validation when evaluating high-dimensional prediction models in …

The Peer Collaborative: Supporting Engineering Education Research Faculty With Near-Peer Mentoring Unconference Workshops, Alice L. Pawley, Adam R. Carberry, Monica E. Cardella, Maria-Isabel Carnasciali, Shanna R. Daly, Jenna L. Gorlewicz, Geoffrey L. Herman, Morgan M. Hynes, Shawn S. Jordan, Nadia N. Kellam, Micah Lande, Matthew A. Verleger, Dazhi Yang

Engineering and Applied Science Education Faculty Publications

The PEER Collaborative National Network is a national peer mentoring network for early career tenure-track or mid-career tenured faculty who conduct and are primarily evaluated based on their research related to engineering education. This paper discusses the development, logistics, and outcomes of two PEER workshops built around a community of practice framework. Data from internal and external evaluations are presented to provide insights into aspects that worked well and aspects that need further development. Additionally, by reflecting on the workshops, participants crafted vignettes describing the impact the PEER workshops had on their personal and professional lives. The paper concludes with …

Metabolic Suppression In Mammalian Hibernation: The Role Of Mitochondria., James F Staples

Biology Publications

Hibernation evolved in some small mammals that live in cold environments, presumably to conserve energy when food supplies are low. Throughout the winter, hibernators cycle spontaneously between torpor, with low metabolism and near-freezing body temperatures, and euthermia, with high metabolism and body temperatures near 37°C. Understanding the mechanisms underlying this natural model of extreme metabolic plasticity is important for fundamental and applied science. During entrance into torpor, reductions in metabolic rate begin before body temperatures fall, even when thermogenesis is not active, suggesting active mechanisms of metabolic suppression, rather than passive thermal effects. Mitochondrial respiration is suppressed during torpor, especially …

Genome Sequence Of The Listia Angolensis Microsymbiont Microvirga Lotononidis Strain Wsm3557ᵀ, Wayne Reeve, Julie Kaye Ardley, Rui Tian, Sofie E. De Meyer, Jason Terpolilli, Vanessa Melino, Ravi P. Tiwari, Ronald J. Yates, Graham William O'Hara, John Gregory Howieson, Mohamed Ninawi, Xiaojing Zhang, David Bruce, Chris Detter, Roxanne Tapia, Cliff Han, Chia-Lin Wei, Marcel Huntemann, James Han, I-Min Chen, Konstantinos Mavromatis, Victor Markowitz, Ernest Szeto, Natalia Ivanova, Ioanna Pagani, Amrita Pati, Lynne Goodwin, Tanja Woyke, Nikos Kyrpides

Grain and Other Field Crops Research Articles

Microvirga lotononidis is a recently described species of root-nodule bacteria that is an effective nitrogen- (N2) fixing microsymbiont of the symbiotically specific African legume Listia angolensis (Welw. ex Bak.) B.-E. van Wyk & Boatwr. M. lotononidis possesses several properties that are unusual in root-nodule bacteria, including pigmentation and the ability to grow at temperatures of up to 45°C. Strain WSM3557T is an aerobic, motile, Gram-negative, non-spore-forming rod isolated from a L. angolensis root nodule collected in Chipata, Zambia in 1963. This is the first report of a complete genome sequence for the genus Microvirga. Here we describe the features …

Genome Sequence Of Rhizobium Leguminosarum Bv Trifolii Strain Wsm1689, The Microsymbiont Of The One Flowered Clover Trifolium Uniflorum, Jason Terpolilli, Tian Rui, Ronald J. Yates, John Gregory Howieson, Philip Poole, Christine Munk, Roxanne Tapia, Cliff Han, Victor Markowitz, Reddy Tatiparthi, Konstantinos Mavromatis, Natalia Ivanova, Amrita Pati, Lynne Goodwin, Tanja Woyke, Nikos Kyrpides, Wayne Reeve

Grain and Other Field Crops Research Articles

Rhizobium leguminosarum bv. trifolii is a soil-inhabiting bacterium that has the capacity to be an effective N2-fixing microsymbiont of Trifolium (clover) species. R. leguminosarum bv. trifolii strain WSM1689 is an aerobic, motile, Gram-negative, non-spore-forming rod that was isolated from a root nodule of Trifolium uniflorum collected on the edge of a valley 6 km from Eggares on the Greek Island of Naxos. Although WSM1689 is capable of highly effective N2-fixation with T. uniflorum, it is either unable to nodulate or unable to fix N2 with a wide range of both perennial and annual clovers originating from Europe, North America …

The Tumor Suppressive Role Of Camk2n1 In Castration-Resistant Prostate Cancer., Tao Wang, Zhuo Liu, Shuiming Guo, Licheng Wu, Mingchao Li, Jun Yang, Ruibao Chen, Hua Xu, Shaoxin Cai, Hui Chen, Weiyong Li, Liang Wang, Zhiquan Hu, Qianyuan Zhuang, Shaohua Xu, Liping Wang, Jihong Liu, Zhangqun Ye, Jun-Yuan Ji, Chenguang Wang, Ke Chen

Department of Cancer Biology Faculty Papers

Prostate cancer at advanced stages including metastatic and castration-resistant cancer remains incurable due to the lack of effective therapies. The CAMK2N1 gene, cloned and characterized as an inhibitor of CaMKII (calcium/calmodulin-dependent protein kinase II), has been shown to affect tumorigenesis and tumor growth. However, it is still unknown whether CAMK2N1 plays a role in prostate cancer development. We first examined the protein and mRNA levels of CAMK2N1 and observed a significant decrease in human prostate cancers comparing to normal prostate tissues. Re-expression of CAMK2N1 in prostate cancer cells reduced cellular proliferation, arrested cells in G0/G1 phases, and induced apoptotic cell …

Use Of A Onedimensional Link-Node Model To Develop Total Maximum Daily Load Strategies For The San Joaquin River Estuary, Mary Kay Camarillo, William T. Stringfellow, Joel Herr, Scott Sheeder, Gregory Weissmann, Shelly Gulati, Ashley Stubblefield

All Faculty Presentations - School of Engineering and Computer Science

A one-dimensional link-node model was used to simulate water quality conditions in the tidallyinfluenced, deep water ship channel (DWSC) of the San Joaquin River located in Central California. The DWSC has been plagued with low dissolved oxygen (DO) conditions for decades and is currently a focus of restoration efforts. The model was calibrated using a six-year flow and water quality data set. Model simulations were run by removing the mass loads of each of the following major sources of oxygen depletion to determine the effects: elimination of the deepened ship channel (i.e., restore to its preexisting depth), elimination of import …

Use Of The Warmf Model To Identify Sources Of Oxygen Impairment And Potential Management Strategies For The San Joaquin River Watershed, William T. Stringfellow, Joel Herr, Scott Sheeder, Shelly Gulati, Gregory Weissmann, Mary K. Camarillo, Michael Jue

All Faculty Presentations - School of Engineering and Computer Science

Eutrophication of the San Joaquin River (SJR) has resulted in low dissolved oxygen (DO) conditions, which has led to a regulatory response and development of total maximum daily load (TMDL) allocations. Due to the dynamic nature of processes governing oxygen depletion in the SJR, a model was needed to help stakeholders understand the fate and transport of nutrients and oxygendemanding substances that cause the low DO conditions. Here, the Watershed Analysis Risk Management Framework (WARMF) model was used to simulate nutrient removal and control strategies, accounting for the secondary effects of growth and transformation between sources and discharge. Using the …

Larval Host Plants Of Enodia Anthedon, Satyrodes Appalachia And S. Eurydice In Vermont, Usa, David J. Hoag

The Taxonomic Report of the International Lepidoptera Survey

Field observation and captive rearing was used to clarify larval host plant use in Enodia anthedon, Satyrodes appalachia, and S. eurydice in Vermont, USA. In nature S. appalachia larvae were found on Carex lacustris, C. lupulina, C. gracillima, and C. tuckermanii. Enodia anthedon in nature was found to oviposit on grass and on Carex lacustris. Larvae of E. anthedon were found on C. lacustris and C. lupulina. In captivity, all but two E. anthedon larvae chose Carex over grass. Both E. appalachia and E. anthedon …

A New Liquid Chromatography/Tandem Mass Spectrometry Method For Quantification Of Gangliosides In Human Plasma, Qianyang Huang, Xiang Zhou, Danting Liu, Baozhong Xin, Karen Cechner, Heng Wang, Aimin Zhou

Chemistry Faculty Publications

Gangliosides are a family of glycosphingolipids characterized by mono- or polysialic acid-containing oligosaccharides linked through 1,3- and 1,4-β glycosidic bonds with subtle differences in structure that are abundantly present in the central nervous systems of many living organisms. Their cellular surface expression and physiological malfunction are believed to be pathologically implicated in considerable neurological disorders, including Alzheimer and Parkinson diseases. Recently, studies have tentatively elucidated that mental retardation or physical stagnation deteriorates as the physiological profile of gangliosides becomes progressively and distinctively abnormal during the development of these typical neurodegenerative syndromes. In this work, a reverse-phase liquid chromatography/tandem mass spectrometry …

Cytoplasmic Carboxypeptidase 5 Regulates Tubulin Glutamylation And Zebrafish Cilia Formation And Function, Narendra Pathak, Christina A. Austin-Tse, Yan Liu, Aleksandr Vasilyev, Iain A. Drummond

Neuroscience: Faculty Publications

Glutamylation is a functionally important tubulin posttranslational modification enriched on stable microtubules of neuronal axons, mitotic spindles, centrioles, and cilia. In vertebrates, balanced activities of tubulin glutamyl ligase and cytoplasmic carboxypeptidase deglutamylase enzymes maintain organelle- and cell type-specific tubulin glutamylation pat terns. Tubulin glutamylation in cilia is regulated via restricted subcellular localization or ex pression of tubulin glutamyl ligases (ttlls) and nonenzymatic proteins, including the zebrafish TPR repeat protein Fleer/Ift70. Here we analyze the expression patterns of ccp deglutamy lase genes during zebrafish development and the effects of ccp gene knockdown on cilia formation, morphology, and tubulin glutamylation. The deglutamylases …

2014 Commencement Program (Morning Ceremony), Nicholas D. Kristof

Commencement Archives 2010-19

The program for the Portland State University 2014 Commencement, Morning Ceremony: College of Liberal Arts and Sciences, held June 15, 2014.

Lorry I. Lokey and Nicholas D. Kristof received honorary degrees; Kristof delivered the commencement address.

Wavelet Support Vector Machine For Face Recognition, Chen-Chia Chuang, Ping-Lun Liao, Jin-Tsong Jeng

Journal of Marine Science and Technology–Taiwan

In this paper a tool system with wavelet support vector machine (WSVM) under dimension reduction for face recognition is proposed. Eigenfaces and fisherfaces are the major methods used to reduce the dimension of face images in the proposed face recognition tool system. At the same time, noise interference image cases, namely Gaussian noise, with no ears and no eyes are also considered in this paper. Finally, the implementation of proposed system is based on objectoriented design software; the dimension reduction and wavelet kernel support vector machine are applied to the proposed tool system that can deal with face recognition problems …