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The principle of Darwinian evolution has been applied in the laboratory to nucleic acid molecules since 1990, and led to the emergence of in vitro evolution technique. The methodology of in vitro evolution surveys a large number of different molecules simultaneously for a pre-defined chemical property, and enrich for molecules

The principle of Darwinian evolution has been applied in the laboratory to nucleic acid molecules since 1990, and led to the emergence of in vitro evolution technique. The methodology of in vitro evolution surveys a large number of different molecules simultaneously for a pre-defined chemical property, and enrich for molecules with the particular property. DNA and RNA sequences with versatile functions have been identified by in vitro selection experiments, but many basic questions remain to be answered about how these molecules achieve their functions. This dissertation first focuses on addressing a fundamental question regarding the molecular recognition properties of in vitro selected DNA sequences, namely whether negatively charged DNA sequences can be evolved to bind alkaline proteins with high specificity. We showed that DNA binders could be made, through carefully designed stringent in vitro selection, to discriminate different alkaline proteins. The focus of this dissertation is then shifted to in vitro evolution of an artificial genetic polymer called threose nucleic acid (TNA). TNA has been considered a potential RNA progenitor during early evolution of life on Earth. However, further experimental evidence to support TNA as a primordial genetic material is lacking. In this dissertation we demonstrated the capacity of TNA to form stable tertiary structure with specific ligand binding property, which suggests a possible role of TNA as a pre-RNA genetic polymer. Additionally, we discussed the challenges in in vitro evolution for TNA enzymes and developed the necessary methodology for future TNA enzyme evolution.
ContributorsYu, Hanyang (Author) / Chaput, John C (Thesis advisor) / Chen, Julian (Committee member) / Yan, Hao (Committee member) / Arizona State University (Publisher)
Created2013
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Description
Synthetic biology is constantly evolving as new ideas are incorporated into this increasingly flexible field. It incorporates the engineering of life with standard genetic parts and methods; new organisms with new genomes; expansion of life to include new components, capabilities, and chemistries; and even completely synthetic organisms that mimic life

Synthetic biology is constantly evolving as new ideas are incorporated into this increasingly flexible field. It incorporates the engineering of life with standard genetic parts and methods; new organisms with new genomes; expansion of life to include new components, capabilities, and chemistries; and even completely synthetic organisms that mimic life while being composed of non-living matter. We have introduced a new paradigm of synthetic biology that melds the methods of in vitro evolution with the goals and philosophy of synthetic biology. The Family B proteins represent the first de novo evolved natively folded proteins to be developed with increasingly powerful tools of molecular evolution. These proteins are folded and functional, composed of the 20 canonical amino acids, and in many ways resemble natural proteins. However, their evolutionary history is quite different from natural proteins, as it did not involve a cellular environment. In this study, we examine the properties of DX, one of the Family B proteins that have been evolutionarily optimized for folding stability. Described in chapter 2 is an investigation into the primitive catalytic properties of DX, which seems to have evolved a serendipitous ATPase activity in addition to its selected ATP binding activity. In chapters 3 and 4 we express the DX gene in E. coli cells and observe massive changes in cell morphology, biochemistry, and life cycle. Exposure to DX activates several defense systems in E. coli, including filamentation, cytoplasmic segregation, and reversion to a viable but non-culturable state. We examined these phenotypes in detail and present a model that accounts for how DX causes such a rearrangement of the cell.
ContributorsStomel, Joshua (Author) / Chaput, John C (Thesis advisor) / Korch, Shaleen (Committee member) / Roberson, Robert (Committee member) / Ghirlanda, Gionvanna (Committee member) / Arizona State University (Publisher)
Created2011
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Description
Advances in chemical synthesis have enabled new lines of research with unnatural genetic polymers whose modified bases or sugar-phosphate backbones have potential therapeutic and biotechnological applications. Maximizing the potential of these synthetic genetic systems requires inventing new molecular biology tools that can both generate and faithfully replicate unnatural polymers of

Advances in chemical synthesis have enabled new lines of research with unnatural genetic polymers whose modified bases or sugar-phosphate backbones have potential therapeutic and biotechnological applications. Maximizing the potential of these synthetic genetic systems requires inventing new molecular biology tools that can both generate and faithfully replicate unnatural polymers of significant length. Threose nucleic acid (TNA) has received significant attention as a complete replication system has been developed by engineering natural polymerases to broaden their substrate specificity. The system, however, suffers from a high mutational load reducing its utility. This thesis will cover the development of two new polymerases capable of transcribing and reverse transcribing TNA polymers with high efficiency and fidelity. The polymerases are identified using a new strategy wherein gain-of-function mutations are sampled in homologous protein architectures leading to subtle optimization of protein function. The new replication system has a fidelity that supports the propagation of genetic information enabling in vitro selection of functional TNA molecules. TNA aptamers to human alpha-thrombin are identified and demonstrated to have superior stability compared to DNA and RNA in biologically relevant conditions. This is the first demonstration that functional TNA molecules have potential in biotechnology and molecular medicine.
ContributorsDunn, Matthew Ryan (Author) / Chaput, John C (Thesis advisor) / LaBaer, Joshua (Committee member) / Lake, Douglas (Committee member) / Mangone, Marco (Committee member) / Arizona State University (Publisher)
Created2015
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Description
After freelancing on my own for the past year and a half, I have realized that one of the biggest obstacles to college entrepreneurs is a fear or apprehension to sales. As a computer science major trying to sell my services, I discovered very quickly that I had not been

After freelancing on my own for the past year and a half, I have realized that one of the biggest obstacles to college entrepreneurs is a fear or apprehension to sales. As a computer science major trying to sell my services, I discovered very quickly that I had not been prepared for the difficulty of learning sales. Sales get a bad rap and very often is the last thing that young entrepreneurs want to try, but the reality is that sales is oxygen to a company and a required skill for an entrepreneur. Due to this, I compiled all of my knowledge into an e-book for young entrepreneurs starting out to learn how to open up a conversation with a prospect all the way to closing them on the phone. Instead of starting from scratch like I did, college entrepreneurs can learn the bare basics of selling their own services, even if they are terrified of sales and what it entails. In this e-book, there are tips that I have learned to deal with my anxiety about sales such as taking the pressure off of yourself and prioritizing listening more than pitching. Instead of trying to teach sales expecting people to be natural sales people, this e-book takes the approach of helping entrepreneurs that are terrified of sales and show them how they can cope with this fear and still close a client. In the future, I hope young entrepreneurs will have access to more resources that handle this fear and make it much easier for them to learn it by themselves. This e-book is the first step.
ContributorsMead, Kevin Tyler (Author) / Sebold, Brent (Thesis director) / Kruse, Gabriel (Committee member) / Computer Science and Engineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
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Description
This study explores the best known practices of small businesses from different entrepreneurs' perspectives and attempts to address the question: are there consistencies between different entrepreneurs' approaches to establishing and growing a business? Ten entrepreneurs from a variety of business types (product and service) were interviewed using a consistent question

This study explores the best known practices of small businesses from different entrepreneurs' perspectives and attempts to address the question: are there consistencies between different entrepreneurs' approaches to establishing and growing a business? Ten entrepreneurs from a variety of business types (product and service) were interviewed using a consistent question template that asked questions regarding financing, business strategy (and scalability), interpersonal forces, innate qualities, partnerships, and resources. The primary overlaps between these businesses are with regard to the confluence between personal risk and business strategy, the risk of working with friends and family, the capacity to scale relative to special content knowledge or process knowledge, and partnerships
etworking.
ContributorsCole, Chandler William (Author) / Kellso, James (Thesis director) / Gilmore, Bruce (Committee member) / Department of Supply Chain Management (Contributor) / Department of Finance (Contributor) / Barrett, The Honors College (Contributor)
Created2017-12
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Description
Women dominate in terms of purchasing power and spending. They hold 60 percent of all US personal income, and those aged 50 years or older have a combined net worth of approximately $19 trillion. Of this group, women between 50 and 70 years old, in particular, are the biggest spenders

Women dominate in terms of purchasing power and spending. They hold 60 percent of all US personal income, and those aged 50 years or older have a combined net worth of approximately $19 trillion. Of this group, women between 50 and 70 years old, in particular, are the biggest spenders (Barmann, 2014). More important than their spending power, however, is how satisfied (or dissatisfied) they are with their current purchases. Though women make 85 percent of all consumer purchases, 91 percent of women say, "...advertisers don't understand them," (Barmann, 2014). This makes sense, considering that 50 percent of the products marketed to men are actually purchased by women (Barmann, 2014). Successfully targeting women, especially Baby Boomers (women between 52 and 70 years old), would be a lucrative endeavor, and to better understand the unmet needs of that demographic, exploratory research was needed. In-depth interviews of Baby Boomer women reveals a problem that \u2014 even on a macro level \u2014 has gone unresolved, and has perhaps worsened, throughout written history: the Generation Gap (Bengtson, 1970). To illustrate the depth of the problem, there exist starkly different impressions of younger generations, namely Millennials (born between 1980 and 1995). According to The New Generation Gap by Neil Howe and William Strauss (1992), Baby Boomers view Millennials as unintelligent, entitled "pleasure beasts." In Millennials Rising, also by Howe and Strauss (2000), Millennials are characterized as a generation that is, "...beginning to manifest a wide array of positive social habits that older Americans no longer associate with youth, including a new focus on teamwork, achievement, modesty, and good conduct." These contradictory opinions further support the substantial misunderstanding between generations that surfaced during in-depth interviews. Using the results of in-depth interviews and follow-up questions for idea validation, this thesis presents a potential method for "closing the gap." The goal of this business offering is not to homogenize older and younger generations of women; the goal is to cultivate empathy and connection \u2014 Intergenerational Cohesion \u2014 between them.
ContributorsSeefus, Cole Hawk Gillette (Author) / Gray, Nancy (Thesis director) / Giard, Jacques (Committee member) / Department of Management (Contributor) / Department of Marketing (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
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Description
Aventure is the newest contemporary luxury men and women’s apparel and accessories boutique in Arizona. The boutique will be located in Downtown Scottsdale, specifically in McKellips Plaza conveniently located near Scottsdale Fashion Square. Aventure is the first of its kind in the Phoenix Metropolitan Area, providing Millennial fashion fanatics with

Aventure is the newest contemporary luxury men and women’s apparel and accessories boutique in Arizona. The boutique will be located in Downtown Scottsdale, specifically in McKellips Plaza conveniently located near Scottsdale Fashion Square. Aventure is the first of its kind in the Phoenix Metropolitan Area, providing Millennial fashion fanatics with a destination that fills the empty void in the city’s growing fashion scene. At Aventure, we bridge the gap between pop culture, streetwear, and high-fashion. Through our mantra ‘Redefining the Luxury Retail Experience,’ we aim is to promote expression of one’s self to the fullest extent through style.

‘Aventure,’ which means “experience” or “adventure” in French, defines this upscale boutique and its essence of inclusion. This store does not aim to be your traditional retailer; instead, Aventure aims to build a community within and around the store for individuals with similar styles and passion for fashion. At the moment, the city of Scottsdale (and the Metro Phoenix area as a whole) does not have its own identity in the fashion world. There is no reason why Metro Phoenix cannot, with time, become more recognized in the global fashion community. With an array of exclusive luxury merchandise and an urban atmosphere, Aventure aims to pioneer the Valley’s establishment on the national high-end fashion scene.

The boutique is a result of the vision of its founder Ahmed Imam. Ahmed is a graduating Honors student at Arizona State Univeristy’s W.P. Carey School of Business, pursuing concurrent degrees in Finance and Business Entrepreneurship. Having been passionate about fashion for as long as he can remember, Ahmed will leverage his connections to the industry and excellent understanding of the Metro Phoenix market to turn Aventure into a hallmark of the community. Through his professional experience and educational background, Ahmed also brings the necessary knowledge and skills to the table to effectively run a startup.

The retail industry is experiencing steady growth, with the luxury goods sector expected to perform very well in the coming years. Using market-based sales forecasting, Aventure is estimated to break even by the third year of operations. Sales are expected to grow 20 percent after Year 1, and grow 5 percent thereafter. Net operating income of $83,643 is estimated in Year 1, growing to $141,351 by the end of Year 3. Overall, total startup expenses are estimated to be $206,574, made up of investments from owners and a term loan from Bank of America. The owner investment will be used to cover capital equipment, location, and administrative expenses. These include furniture, equipment, machinery, rent, utility, legal and accounting fees, prepaid insurance, and other expenses. The majority of the term loan will be used to finance opening inventory and advertising expenses, with the rest going towards cash on the balance sheet to ensure liquidity.
ContributorsImam, Ahmed Mohamed (Author) / Ostrom, Amy (Thesis director) / Schlacter, John (Committee member) / Department of Management and Entrepreneurship (Contributor) / Barrett, The Honors College (Contributor)
Created2017-05
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The Confessions of a College Entrepreneur is an honors project with the goal of revealing the business and marketing strategies that Charles Crawford used to create multiple successful companies. It's a collection of personal stories, book notes, millionaire interviews, and experiences that Charles had over the past 4 years of

The Confessions of a College Entrepreneur is an honors project with the goal of revealing the business and marketing strategies that Charles Crawford used to create multiple successful companies. It's a collection of personal stories, book notes, millionaire interviews, and experiences that Charles had over the past 4 years of intense business experience and research across multiple industries. Charles wants college students and business owners to succeed in business ventures and life in general. This creative thesis project is the map for how to do just that.
ContributorsCrawford, Charles Joseph (Author) / Budolfson, Arthur (Thesis director) / Giles, Charles (Committee member) / Barrett, The Honors College (Contributor) / Department of Finance (Contributor)
Created2014-12
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Description
Bacteria have been shown to possess a large array of regulatory mechanisms to not just respond to a diverse array of environmental stresses, but to injurious artificial proteins as well. A previous investigation introduced DX, a man-made ATP sequestering protein into Escherichia coli (E. coli) which resulted in the formation

Bacteria have been shown to possess a large array of regulatory mechanisms to not just respond to a diverse array of environmental stresses, but to injurious artificial proteins as well. A previous investigation introduced DX, a man-made ATP sequestering protein into Escherichia coli (E. coli) which resulted in the formation of novel endoliposome structures and induced a viable but non-culturable state (VBNC) that was not easily reversed. It was hypothesized that the broadly conserved bacterial stringent response pathway may have been responsible for the observed phenotypic changes. With the goal of unveiling the molecular mechanism behind this novel response, changes in cellular morphology and physiology upon DX expression were assessed in a population of E. coli encoding a dysfunctional relA gene, one of the two genes controlling the induction of the stringent response. It was ultimately shown that RelA directly contributed to cellular filamentation, endoliposome structure formation, and the induction of a VBNC state. While the stringent response has been extensively shown to induce a VBNC state, to our knowledge, relA has not yet been shown to induce filamentation or coordinate the formation of endoliposome structures in bacteria. As the stringent response has been shown to be increasingly involved in antibiotic tolerance, this study provided an exciting opportunity to further characterize this adaptive response pathway to aid in the future development of novel therapeutics. In addition to this, this study continued to highlight that the DX protein may serve one of the first tools to allow for the direct selection of bacteria in a VBNC state by morphologically distinguishing non-culturable cells through cellular filamentation.
ContributorsFrost, Fredrick Charles (Author) / Chaput, John (Thesis director) / Wachter, Rebekka (Committee member) / Korch, Shaleen (Committee member) / Barrett, The Honors College (Contributor) / Department of Chemistry and Biochemistry (Contributor)
Created2014-12
Description
SparkLED designs innovative and intelligent LED products to concert attendees for the music industry (specifically, electronic dance music). Unlike other LED product distributors/manufacturers, such as emazinglights.com, orbitlightshow.com, and led-clothing.com, we offer products with higher degrees of customization, while maintaining higher quality, such as battery life and product durability. Our venture

SparkLED designs innovative and intelligent LED products to concert attendees for the music industry (specifically, electronic dance music). Unlike other LED product distributors/manufacturers, such as emazinglights.com, orbitlightshow.com, and led-clothing.com, we offer products with higher degrees of customization, while maintaining higher quality, such as battery life and product durability. Our venture aims to solve the problem that consumers have with current LED product offerings. In most cases, consumers have a problem with the quality of their products while they are used throughout the day at a concert, club, or festival. In addition, with an over saturated market of LED product vendors that strictly utilize online channels, we hope to offer the physical channel needed to foster customer relationships and development at various events.
ContributorsYip, Indy Boyin (Author) / Trappen, Eric (Thesis director) / Peck, Sidnee (Committee member) / Barrett, The Honors College (Contributor) / Department of Management (Contributor) / Department of Information Systems (Contributor)
Created2014-05