Fall 2018 Colloquia
Data Mining, Interactive online Visualization and the Georgetown Analytics Program
Speaker: Ami Gates
Tuesday, December 11, 11:30am - 12:30pm MT
Abstract:听Using R and Association Rule Mining to mine Twitter Data, an overview of interactive online vis or Shiny - client-server, etc, etc and talk about听Georgetown, Graduate study, and our Analytics Program
Bio:听Dr. Ami Gates is the Director of the Data Analytics Program and an Associate Professor of Data Analytics. Dr. Gates specializations in data analytics, data visualization, data mining, machine learning, statistics, information technology, learning analytics and educational data mining.听Dr. Gates has a PhD in Computer Engineering with a focus on Machine Learning, Bioinformatics, and Data Analytics, an MS in Computer Science with a focus in Statistics, an MS in Mathematics Education, and a BA in Mathematics. Dr. Gates has spent over twenty-five years actively teaching, developing new courses and curriculums, leading new educational programs, supporting faculty, and engaging in research focused on pedagogical methods, educational data mining, and learning analytics. Dr. Gates has considerable industrial experience, and was a computer scientist, a technical trainer and project manager, and a lead statistician. Dr. Gates maintains a research and information exchange relationship with Johns Hopkins University and participates in a partnership with their SMART group. While Dr. Gates focuses primarily on providing superior educational environments, and supporting students, she also pursues research interests in the areas of visual analytics, machine learning applications, improving pedagogical methods, educational data mining, and learning analytics. Before joining Georgetown University, Dr. Gates was an educational technology developer and data analytics consultant. Dr. Gates owned and managed a successful small business for over 10 years.
鈥淐ontrol your emotions, Potter鈥: An Analysis of Grief Policing on Facebook in Response to Celebrity Death
Speaker: Katie Gach
Tuesday, December 4, 11:30am - 12:30pm MT
Authors: Katie Z Gach, Casey Fiesler, Jed R. Brubaker (will be presented by Katie)
As social media platforms become a larger part of sharing life, they have by necessity become a part of sharing death. In life, pop culture fans can have parasocial (one-sided, mediated) relationships with celebrities. Yet when fans of departed celebrities express their grief in public comment threads, conversations often result in disagreements about how to grieve. These disagreements consistently appear in response to the deaths of public figures, and have been broadly labeled 鈥済rief policing.鈥 We performed a thematic analysis of public Facebook comments responding to the deaths of Alan Rickman, David Bowie, and Prince. Our findings describe prominent grief policing practices and explain how commenters may be importing norms from other contexts when shared spaces consist of transient interactions that make norm formation difficult. Our findings contribute to a broader understanding of how conflicting norms affect discourse in transient online spaces. Approaching online incivility through a lens of conflicting social norm enforcement may open doors for improvements in public discourse online.
Boldly Going Where Few HCI Researchers Have Gone Before: Design, Learning, Social Computing, and Ethics in Online Fandom
Speaker: Casey Fiesler
Tuesday, November 27, 11:30am - 12:30pm MT
Abstract:听This talk will cover a series of research projects that interrogate different aspects of human-computer interaction in a shared domain: online fandom. In fandom communities, people share creative work that transforms and critiques existing media such as television shows, video games, and movies. They also create and enforce complex social norms,听 learn technical skills within communities of practice, build their own online platforms to support existing values, and support inclusivity and safety for community members. This talk covers related threads of research: (1) the design and development of a fanfiction archive through the lenses of feminist HCI and legitimate peripheral participation; (2) migration of fan communities across online platforms; and (3) ongoing research related to privacy, safety, and empowerment for LGBTQ fandom participants.听
Bio:听Casey Fiesler is an assistant professor and founding faculty in the Department of Information Science at 黑料社区网. Armed with a PhD in Human-Centered Computing from Georgia Tech and a JD from Vanderbilt Law School, she primarily conducts research in the areas of online communities, law and ethics, social norms, and fandom. Her dissertation research focused on the role that copyright law plays in online creative communities. She is also a copyright activist (having interned at Creative Commons and currently part of the legal committee for the Organization for Transformative Works) and occasional commentator on issues related to women and technology. Her work has won Best Paper Awards and Honorable Mentions at CSCW and CHI, but she鈥檚 most Internet famous for remixing a book about Barbie.
Slavery Images: Developing Image Repositories and Cloud-Based 3D Educational Environments
Speaker: Henry Lovejoy
Tuesday, November 13, 2:30 - 3:30pm MT
Abstract:听Currently, the website, Slavery Images, contains a collection of 1,280 historical images illustrating the African slave trade and slave life in the early African diaspora. With the generous support of 黑料社区网, the website is being redeveloped to incorporate a set of open-source code known as the International Image Interoperability Framework (IIIF), as well as the integration of 3D point clouds for full-scale replicas of endangered world heritage sites related to UNESCO鈥檚 Slave Route Project. Slavery Images will be hosted, developed and maintained on servers at 黑料社区网. The designated sites will be supplemented with historical images and narratives. The design will meet high academic standards, circulate among secondary and post-secondary institutions, interest the general public, and adhere to accessibility standards for the hearing and seeing impaired. In philanthropic missions since 2014, Trimble Inc. has collected and donated full-scale 3D data point clouds for several historic locations as a proof of concept, including the McLeod Plantation (North Carolina), Natchez National Historical Park (Mississippi), Annaberg Plantation (St. John US Virgin Islands), and a replica slave ship used in Hollywood films. In order to scan these sites and prepare the data for online viewing, Trimble has used laser scanners, global navigation satellite system, drones, imaging rovers, point cloud processing, and 3D modeling software.
Bio:听听Henry B. Lovejoy specializes in the history of Africa and the African diaspora in the Atlantic World during the era of the transatlantic slave trade. His book,听Prieto: Yor霉b谩 Kingship in Colonial Cuba during the Age of Revolutions, is part of the 鈥淓nvisioning Cuba鈥 series with the University of North Carolina Press (2018). Other publications include articles in the听Journal of African History, Slavery听& Abolition,听Journal of Global Slavery,听African Economic History,听Canadian Journal of African Studies, among others.听 He currently focuses most of his research to help advance methods and practices in the digital humanities. He created听Liberated Africans which traces the lives of over 250,000 people involved in international efforts to abolish the Atlantic and Indian Ocean slave trades after 1807. More recently, he began directing听Slavery Images which houses historical images of the African slave trade and slave life in diaspora before 1900. He has also been involved in preserving full-scale 3D replicas of world heritage sites related to UNESCO鈥檚 Slave Route Project using technologies manufactured by Trimble Inc. He is also developing historical GIS methods to determine the origins of Africans involved in the slave trade using statistical models. His innovative research has received support from the National Endowment for the Humanities, Andrew W. Mellon Foundation, Social Sciences and Humanities Research Council of Canada, Fulbright-Hays, Hutchins Center for African and African American Research at Harvard University, and the 黑料社区网.
Dancing Technology, Re-framing Perspectives
Speaker: Helanius Wilkins
Tuesday, November 6, 11:30am - 12:30pm MT
Abstract: Wilkins, gives a talk on the influence of hybrid theatre practices, media and technology on contemporary dance performance.听听Wilkins will navigate this topic through illuminating his creative research which is rooted in the interconnections of American contemporary performance, cultural history, and identities of Black men. Intrigued by ideas about indeterminacy in creative process and performance, he approaches performance and pedagogy as means of re-framing perspectives, creative practices, and technical training. In his intermedia collaborations he works with artists from a wide range of disciplines, including film, video, and design.听
Bio:听HELANIUS J. WILKINS (CO), a Louisiana native, is an award-winning choreographer, performance artist, scholar, and instructor. Based in Boulder, CO, he is an Assistant Professor of Dance at the University of Colorado, Boulder. He lived in Washington, DC for eighteen years and founded EDGEWORKS Dance Theater, an all-male dance company of predominantly African-American men that existed for thirteen years (2001 - 2014). His honors include the 2008 Pola Nirenska Award for Contemporary Achievement in Dance, DC鈥檚 highest honor given by the Washington Performing Arts Society; the 2002 and 2006 Kennedy Center Local Dance Commissioning Project Award; and multiple Metro DC Dance Awards. In addition, he was a three-time finalist for the DC Mayor鈥檚 Arts Awards and Bates Dance Festival named him their 2002 Emerging choreographer. Wilkins earned undergraduate and graduate degrees in Dance from SUNY Brockport and George Washington University. He also studied Film & Video Production at the Rochester Institute of Technology. In addition to performing, he enjoys creating, presenting, and receiving commissions for choreography throughout the US and abroad. Foundations and organizations including New England Foundation for the Arts, National Performance Network, DC Commission on the Arts & Humanities, and the National Endowment for the Arts have supported his work.
The Digital Chaplain Project: Compassionate Computing for Real Human Experiences
Speaker: Katie Gach
Tuesday, October 30, 11:30am - 12:30pm MT
Abstract:听Katie Gach鈥檚 research combines ethnographically-inspired qualitative methods, user experience research, and online identity and affect theories to understand how support and sensitivity can be designed within systems that inform every aspect of our lives. Algorithmically-curated content streams, like Facebook Newsfeed, are one of the main ways people get information and interact with others. In cases of death, surviving loved ones must share the tragic news with their relatives and friends, and many choose to do so on Facebook. Death is the situation in which algorithms can be most cruel, but there are many difficult life experiences where a focus on engagement becomes thoughtless, and thus where people鈥檚 emotional well-being could be at risk. Katie examines where these points of distress are happening, and what can be done to bring compassion into them. To this end, the Digital Chaplain Project鈥檚 primary research questions include, 1) Beyond death notifications, what kinds of information need support? 2) What kinds of support do distressed people need? 3) What kinds of support are possible for systems that deliver content via algorithmically-curated streams? and 4) What kinds of relationships with information are involved in people鈥檚 experiences of distress?
Bio:听Katie Gach is a PhD student in the ATLAS Institute, she is听a digital ethnographer studying human experiences on social platforms.听Her advisor is Jed Brubaker, an assistant professor in the Information Science Department.听
Additive Fabrication of Electronic Devices and Systems
Speaker: Greg Whiting
Tuesday, October 23, 11:30am - 12:30pm MT
Abstract: Additive fabrication techniques such as 2D and 3D printing approaches provide a compelling route to developing a wide range of unconventional and pervasive functional electronic components and systems, and enables a more distributed method of manufacturing such devices.听 A large array of relevant materials, including conductors, semiconductors, dielectrics, stimuli-responsive and energy storage materials as well as听 others can be formulated into inks and accurately deposited using various printing techniques allowing useful, complex systems to be made with a large available design space.
This talk will provide an overview of printed electronics research, including deposition methods (such as extrusion, ink-jet, microassembly and others), resulting devices and systems (including transistors and circuits, power sources, sensors, etc.), applications that these systems can address in areas such as health care and distributed sensing, and the unique benefits of print fabrication of electronic devices, including coverage of large areas, mass customization, and the ability to readily combine dissimilar materials. 听 In addition, an overview of ongoing research that is being carried out in the recently formed Boulder Experimental Electronics and Manufacturing (BEEM) Lab at 黑料社区网 will be described.听 This includes biodegradable electronic materials and devices, multi-process/multi-material 3D printing, and autonomous prototyping systems.
Bio:听Greg joined the 黑料社区网 in 2017 and is an Associate Professor in the Department of Mechanical Engineering, and is the Principal Investigator for the Boulder Experimental Electronics and Manufacturing (BEEM) Laboratory.听 In addition, Greg is a fellow of the Materials Science and Engineering Program, a faculty member of the Design Center Colorado, affiliate faculty of the ATLAS Institute, and a member of the Multi-Functional Materials Interdisciplinary Research Team.听 His research is focused at the intersection of additive manufacturing, novel materials, and functional devices.听 Greg is primarily interested in using printing as a method to fabricate unconventional electronic components and systems that can be readily customized, mechanically flexible/conformable, large area, widely distributed, biocompatible, and/or controllably transient.听 These devices can find application in a wide range of areas including medicine, structural and environmental monitoring, agriculture, robotics, energy generation and storage, as well as data security and waste reduction.听听
Prior to joining the faculty at 黑料社区网 Greg was a member of the Rapid Evaluation Team at Google[X] where he carried out early stage scientific assessment in a wide range of areas in order to develop a pipeline of potential large-scale projects for Alphabet/X that address high impact problems.听 Before X he spent 8 years at the Palo Alto Research Center (PARC), where he managed the Novel Electronics Group, researching printed, flexible and transient electronic systems.听 He also worked for Cambridge Display Technology (CDT), studying organic field-effect transistors, polymer/polymer blend photovoltaics, and polymer light-emitting diodes.
Greg received a Ph.D. from the University of Cambridge in 2007 where his research focused principally on solar cells and field-effect transistors formed using surface-initiated polymer films. He received a B.S. degree from the University of California, Berkeley in 2002 where he studied solution processed polymer/nanoparticle solar cells.听
From Flow Visualization to Beauty, Power, Destruction and Oddness
Speaker: Jean Hertzberg
Tuesday, October 16, 11:30am - 12:30pm MT
Abstract: Flow visualization makes the physics of gases and liquids visible. Since 2003, the 黑料社区网 has offered a Flow Visualization (Flow Vis) course. It is cross-listed, bringing together mixed teams of engineering, TAM and fine arts photography and film students. It focuses on the production of aesthetically pleasing and scientifically useful images of fluid flows. Flow Vis students have responded enthusiastically, with exit survey comments such as 鈥淚鈥檒l never ignore the sky again鈥 or 鈥淚 see examples of flow vis all the time now.鈥澨
Flow visualization can contribute strong messages of science content within the physics and engineering communities, but when communicating with the public it is the aesthetics of fluid flows that carries the greatest weight. This talk will include a short background of aesthetics in an art history context, and then present examples of four aesthetics:听 beauty, power, destruction, and oddness. Each aesthetic will be illustrated with examples drawn from flow visualizations from both the Flow Visualization course (MCEN/ATLAS 4151/5151) and sources on the web.
Bio: Dr. Hertzberg is an Associate Professor of Mechanical Engineering at CU-Boulder. She teaches graduate and undergraduate courses in measurement techniques, thermodynamics, fluid mechanics, heat transfer, design and computer tools. She has pioneered a spectacular course on听 and is conducting research on the impact of the course with respect to visual perception and educational outcomes. Her disciplinary research centers around pulsatile, vortex dominated flows with applications to blood flow in the human heart.听
Mind to Market: Creating and Delivering Disruptive Technology
Speaker: Dr. Patrick Sullivan
Tuesday, October 9, 11:30am - 12:30pm MT
Abstract:听Many research universities, national laboratories, and companies with capable research teams produce amazing science and technology that fails to enter the light of day. 听 To some extent, this is expected.听 However, there are systemic challenges that preclude this transition.听 The persistent chasm between the cultures of 鈥渄eep science and discovery,鈥 and 鈥渉uman centered technology delivery鈥 often makes this distance too difficult or impossible to navigate. 听 鈥淢ind to Market鈩⑩ bridges this cultural divide using the common language of Design Thinking, which enables technology Sherpas to navigate between these two worlds.听 At Oceanit鈩, after many years of experimentation, we developed a discipline that persistently supplies disruptive technology, referred to as 鈥淚ntellectual Anarchy鈩,鈥 and the听Mind to Market听practice of disruptive technology delivery.
Bio:听听Patrick Sullivan - President and CEO @ Oceanit鈩, based in Honolulu, Hawaii.
Personal Health Informatics at a Crossroads: Addressing the Pathology and Supporting the Social Ecologies of Long颅-Term Mental Health Management in mHealth Design
Speaker: Stephen Voida
Tuesday, December 2, 11:30am - 12:30pm MT
Abstract:听Personal informatics systems for supporting health largely grew out of a 鈥渟elf鈥-centric orientation: self-tracking, self-reflection, self-knowledge, self-experimentation, self-improvement. Health management, however, even when self-driven, is inherently social and depends on a person鈥檚 direct relationships and broader sociocultural contexts, as an emerging line of research is coming to recognize, study, and support. This is particularly true in the case of mental health. In this talk, I will present a series of projects in which my colleagues and I aimed to understand how the cognitive, perceptual, behavioral, and social characteristics associated with serious mental illnesses should be taken into consideration when designing health technologies. I will discuss how our use of a novel method鈥攊n situ design鈥攆acilitated the ecologically valid and participant-driven design of听MoodRhythm, a mobile application designed to track and stabilize daily routines.听MoodRhythm illustrated how mHealth design elements tailored to the characteristics and needs of individuals with bipolar disorder can result in engaging interactions over the long-term. I will also present empirical findings from a forthcoming CSCW paper on a qualitative study with individuals managing bipolar disorder and members of their support circles. These interviews and focus groups enabled us to construct a model of the social ecology of bipolar disorder management and to identify design implications for personal health informatics systems that are sensitive to these interpersonal contexts.
Bio:听Stephen Voida is an Assistant Professor and founding faculty member in the Department of Information Science, an Adjunct Assistant Professor in the Department of Computer Science, and a faculty fellow in the ATLAS Institute and Institute of Cognitive Science at the 黑料社区网. Dr. Voida directs the Too Much Information (TMI) research group at CU, where he and his multidisciplinary team of students conduct empirical, design, and systems research in the areas of personal informatics and personal information management, with a focus on developing tools that help people to collect, interpret, and reflect on the data streams that they create and the digital artifacts that they encounter on an everyday basis. His research has been recognized with best paper awards and nominations at several of the top conferences in his field, including ACM CHI and CSCW. His research has been supported by Google Research, the National Science Foundation, and a Computing Research Association Computing Innovation postdoctoral fellowship, and his work has appeared in the听New York Times, the听Wall Street Journal,听The Atlantic,听, and on the APM Marketplace Tech Report. Dr. Voida earned his Ph.D and M.S. degrees in Computer Science and Human鈥揅omputer Interaction, respectively, from the Georgia Institute of Technology and his B.S. in Computer Science from Arizona State University.听
Driving Scalable Exploratory Visualization through Perception & Cognition
Speaker: Danielle Szafir
Tuesday, September 25, 11:30am - 12:30pm MT
Abstract:听Visualizations allow analysts to rapidly explore and make sense of their data. However, visualizations traditionally rely on perceptual models from psychology to guide designs that communicate relationships in data.听 These models ignore the complexities arising in real-world analytics applications, such as imperfect displays and crowded data distributions, leading to scalability limitations, flawed understandings, and erroneous conclusions. My research models how people interpret visualized data to understand limitations in current visualization systems. We use these results to develop novel visualization systems that support accurate analysis of complex data that better scale to the needs of modern analytics challenges by incorporating interactive statistical analytics and novel display technologies to increase the accessibility, scalability, and pervasiveness of data-driven reasoning. In this talk, I will discuss our efforts towards improving exploratory data analysis tools across a variety of domains.
Bio:听Danielle Albers Szafir is an Assistant Professor and member of the founding faculty of the Department of Information Science, an Affiliate Professor of Computer Science, and a Fellow in the ATLAS Institute and Institute of Cognitive Science at the 黑料社区网. Her research, which sits at the intersection of information visualization, data science, and cognitive science, has been integrated into leading tools such as D3 and Tableau and has received best paper awards at IEEE VIS and IS&T Color and Imaging. She was named to the Forbes 30 Under 30 Class of 2018 for Science. Dr. Szafir received a B.S. in Computer Science at the University of Washington as a NASA Space Grant Scholar and a Ph.D. in Computer Sciences at the University of Wisconsin-Madison.
Think Inside a Box: an introduction to concept design
Speaker: Dan Ligon
Tuesday, September 18, 11:30am - 12:30pm MT
Abstract: For those focused on the creative fields, 鈥淒esign Thinking鈥 is the latest buzzword to sweep through academic and professional circles alike. It teaches us to 鈥渋deate, break, repeat.鈥 But how do you know which of those ideas are any good? Just iterating, throwing them against the wall and hoping something sticks, is like looking for a needle in a haystack by examining every last piece of straw. In this talk, I will argue that if you pressure test an idea by designing it into a concept before moving on to prototype, you鈥檒l have a more robust, efficient and viable foundation upon which to build your grand solution.
It's Been a While Since I Last Wrote
Speaker: Christopher Baker
Tuesday, September 11, 11:30am - 12:30pm MT
Abstract: One might argue that the primary goal of writing is to communicate with others. But writing, particularly writing by hand, can also serve as a meditative act - a practice that fosters slow, thoughtful contemplation. In this artist talk, Christopher Baker will present past work examining the rise of digitally mediated communication and discuss a forthcoming body of work that focuses on slow, hand-written communication.听听听听
Bio:听Christopher Baker is an artist, engineer and educator whose work probes the ways that our communication technologies quietly shape (and sometimes distort) our relationships with time, space, ideas and intimate relationships. Baker is an Associate Professor of Art at the School of the Art Institute of Chicago (SAIC) in the Art and Technology Studies (ATS) program and is currently a visiting Associate Professor in the ATLAS Program at 黑料社区网. Christopher鈥檚 work has been presented worldwide and he contributes to the open source community.
Magic Hands: From Enhancing Performance of 鈥楴atural鈥 Direct 3D Interaction Techniques to Embracing Spatial and Sensory Approximation in Virtual Reality Environments
Speaker: Amy Banic
Wednesday, September 5, 11:30am - 12:30pm MT
Abstract: Many human beings use hands and arms as extensions of their bodies- as tools to make, create, and animate (e.g. Gestures). Logically, it makes sense to incorporate much of what humans can do in the real world to virtual reality to enhance creativity, work, and training.听 In many cases, this direct manipulation in 3-Dimensions can be beneficial for virtual reality applications; however, it can be challenging for users due to perception, spatial complexity, added degrees-of-freedom, lack of constraints, and other issues. Furthermore, performance loss may result from physical fatigue or a disability. This talk will present past research work on bi-manual and uni-manual 3D User Interaction techniques and input devices that are designed to augment, enhance, or improve a user鈥檚 performance to complete spatial tasks. Plot-twist: It does not always make sense to make interaction as 鈥榬eal鈥 or as 鈥榥atural鈥 as possible. The latter part of this talk will focus on a discussion of spatial and sensory approximation as alternative methods to design more 鈥榤agic鈥 3D Interaction techniques to achieve similar performance results. The goal of this talk is to leave the audience with more questions than answers, to inspire ideas, and to foster potential collaborations with students and faculty.
Bio: Amy Banic is a Visiting Associate Professor from the University of Wyoming in Laramie, WY. Her research focuses on the design of 3D User Interfaces for Virtual Environments, Immersive Visualizations, and Virtual Humans. She is the director of the 3D Interaction and Agents Research laboratory, faculty mentor of the UWYO InnoVRtors student VR project group, and joint appointee at the Advance Visualization Lab at Idaho National Laboratory. Banic has a Baccalaureate background in Studio/Digital Arts and Computer Science from Duquesne University in Pittsburgh, PA. She earned her Ph.D. with the advisement of IEEE Virtual Reality Career awardee Larry Hodges at the University of North Carolina at Charlotte in 2008. She furthered her career development as a Post-Doctoral Fellow at Clemson University before she joined the University of Wyoming in 2010. Banic is truly grateful for this opportunity to work with such creative and inspiring individuals at ATLAS!听
Computational Design Tools and Techniques for Paper Mechatronics
Speaker: Hyunjoo Oh
Friday, August 31, 10:00am - 12:00pm MT
Abstract:听Paper Mechatronics is a new design medium that integrates traditional papercrafting with mechanical, electrical, and computational components. This multidisciplinary medium places additional layers to the creative possibilities of traditional papercrafting. This dissertation presents computational design tools and techniques that I designed and developed to enable novices to build their own Paper Mechatronics. I begin with an overview to describe Paper Mechatronics as a new medium for learning by making. Then I illustrate the design considerations and development of tools and associated prototyping techniques to support novice designers. Finally, I report on Paper Mechatronics workshops as user studies, where I assess the tools and techniques and discuss findings and lessons learned from working with a group of children, educators, and fellow researchers.
These investigations show that Paper Mechatronics can be a compelling means for exploratory construction that promotes powerful ideas. Consciously designed tools and techniques can lower the entry bar for novice designers to actively explore their ideas through design and engineering. This work establishes a foundation for Paper Mechatronics as a medium to enable creative learning and open a further discourse on developing tools and techniques to widen access to exploratory construction, thus promoting creativity.听
Exploring competencies and capabilities for changing work settings 鈥 Insights from product-service systems and beyond
Speaker: Uta Wilkens
Tuesday, August 28, 11:30am - 12:30pm MT
Abstract:听Uta Wilkens introduces research methods and key findings from her surveys on competencies for changing work settings. She especially addresses job characteristics and job demands in product-service systems and gives an overview on related research infrastructure and lab development. Uta moreover aims at gaining feedback for future projects in the field of digitalization and human-centered job design.
Bio:听Uta Wilkens,听Visiting Professor 鈥 Director, Institute of Work Science, Ruhr-University Bochum 鈥 Professor in Work, Human Resources and Leadership, RUHR-UNIVERSIT脛T BOCHUM听听