Propensity score matching techniques are becoming increasingly common as they afford applied practitioners the ability to account for systematic bias related to self-selection. However, "best practices" for implementing these techniques in applied settings is scattered throughout the literature. The current article aims to provide a brief overview of important considerations at each step of the propensity score matching process. Our hope is that this article will serve as a resource to assessment practitioners and augment...
Berries, specifically, strawberries, raspberries, blackberries, and blueberries, are considered an integral part of a healthy plant-based diet. Berries contain high levels of phenolic compounds, which contribute to the health benefits of berry consumption. Many phenolic compounds exhibit high levels of antioxidant activity and other health related benefits, including anti- microbial, anti-inflammatory and cardio-vascular related functional capabilities.
Flow Coating Mesoscale Assemblies: (i) Size and Geometry Scaling, (ii) Rapid Processing, and (iii) Double Helix TransformationsSatyan Choudhary
The work presented in this thesis focuses on building mesoscale assemblies by investigating and developing different flow coating methods, and creating double helix transformations. We establish size and geometry scaling for various control parameters of evaporative self-assembly based ‘stop-and-go’ flow coating method, followed by developing a new actuation mechanism for meniscus capillary break. We also create nanoribbon ladder structures that undergo double helix shape transformation upon release into solution. Our findings provide a robust platform...
The Classroom-as-Organization (CAO) approach involves creating and running an organization as part of class activities. Students act as managers that have control and responsibility over the organization created in the course. While scholars have recognized the value of this educational approach, we need a better understanding of the students’ experience in such a class. We took a multi-study approach to address this gap.
Much research has been done on the benefits and harms associated with suicidal individuals' use of digital technologies. However, the meanings discursively created by suicidal persons online, and the unique properties of the internet that shape the co-creation of these meanings, have scarcely been studied. This dissertation enlists the ethnography of communication enterprise - specifically, Hymes's (1972) descriptive theory and Carbaugh's (2007) cultural discourse analysis - to understand the communicative possibilities within the digital terrain...
Glassy polymer thin films are essential in many applications, including osmotic membranes and flexible electronics. Thinner films will benefit these technologies by increasing energy efficiency and lowering the cost of materials. However, as thickness decreases, the polymer films become fragile, making the films experimentally challenging to handle and to quantitatively study the mechanical properties. Many studies have focused on the changes in chain mobility and entanglements, while there are few studies on the changes in...
The endoplasmic reticulum (ER) is a complex, multifunctional organelle comprised of a continuous membrane and lumen that is organized into several functional regions. It plays various roles including protein translocation, folding, quality control, secretion, calcium signaling, and lipid biogenesis. Cellular protein homeostasis is maintained by a complicated chaperone network, and the largest functional family within this network consists of proteins containing tetratricopeptide repeats (TPRs). TPRs are well-studied structural motifs that mediate intermolecular protein-protein interactions, supporting...
Solar energy is our most abundant natural resource: the energy from sunlight that strikes the Earth in one hour is more than the energy consumed globally in a year. This makes photovoltaics, which convert solar energy into electrical energy, a critical technology to pursue. 95% of the photovoltaic market is dominated by silicon; its high efficiency, stability, and plummeting manufacturing costs made it the clear choice for commercialization. However, silicon solar cells are thick, heavy,...
Muscle fatigue is defined as the reduced capacity to produce torque or power in response to contractile activity. Previous work has observed greater fatigue in older than young adults in response to high-velocity contractions, but similar fatigue with age in response to moderate-velocity contractions. The mechanisms for these age-related differences is not clear. One potential explanation is a greater accumulation of putative agents of fatigue (e.g., Pi, H2PO4-, and H+) in older than young muscle...
University of Massachusetts Amherst553
International Council on Monuments and Sites13
Rutgers, The State University of New Jersey13
Middle East Technical University5
Jomo Kenyatta University of Agriculture and Technology5
The Ohio State University4
University of Washington3
Johns Hopkins University3