Now showing items 1-20 of 533

    • Melange fabrics of the northern Appalachians

      Caine, Jonathan Saul (1991-05)
      Melange and phacoidal or scaly cleavage have been observed in both ancient and modern day accretionary tectonic environments throughout the world. This unique structural fabric reflects common structural elements from microscopic to macroscopic scales of observation and from one region to another. Structures include: distinct individual polyhedral phacoids, phacoidal shear-aparts, rootless dismembered bedlets of silt, isolated rootless near isoclinal fold noses, seams of preferentially oriented phyllosilicates that generally parallel the foliation, abundant pyrite that ranges in form from large globular masses to small euhedral framboids, and calcite present as foliation-parallel veins and as intergranular precipitates. The characteristic phacoid shape is defined by an anastomosing network of regularly intersecting curviplanar slip surfaces whose average orientation defines a macroscopic and microscopic foliation. In three dimensions these intersections form individual phacoidal forms. The relationship of these lensoid shapes to their internal geometry and the overall stress environment in which they form is the least understood aspect of this fabric. By comparing structural data from Taconic melange in western Newfoundland, Canada and eastern New York State insight into the nature of the fabric has been gained. Three primary analytical techniques were used to obtain data for this study: microstructural analysis of thin-sections, analysis of individual phacoid specimens, and manual dissection of large hand samples. Because of the friable nature of phacoidally cleaved material, a method of dissection was developed to measure structural data such as phacoidal surface orientations and associated slickenline orientations. Data collected from these techniques was analyzed using standard stereographic methods using the computer program Orient. In addition, a stress analysis of the foliation and lineation data was done. The results of these analyses suggest that the lensoid shape of individual phacoids is significant at all scales, similar structures are observed from one location to another, and from ancient to modern day tectonic environments. In addition, the presence of phacoidal cleavage in shales and shaly sediments can be used, along with other geologic parameters, as a genetic indicator of the accretionary environment. The distinct phacoidal shape ranges from highly euhedral polyhedrons with triclinic symmetry to subhedral faceted forms that are best described as elongated oblate ellipsoids. These shapes are interpreted to reflect the internal arrangement of seams of preferentially oriented phyllosilicate grains that have apparently undergone rotation, intergranular particulate flow, and possibly recrystallization in an environment of high shear stress, flattening, and progressive deformation. In addition, conjugate microfaulting along phacoidal surfaces that generally parallel the seams acts in concert with the above mechanisms to accommodate the deformation in the accretionary prism environment. The presence of abundant precipitates of pyrite and calcite are interpreted to reflect dewatering processes that are syntectonic to the development of the fabric in the accretionary environment. The results of the stress analysis has demonstrated that the fabric axes, as defined by individual phacoid axes which are generally symmetrical to the axes of the fabric as a whole, are symmetrical to the principal stress axes. Comparison of the geometric, and petrographic data with the stress analysis data confirms this relationship and places the maximum principal stress at a high angle to the average orientation of the dominant foliation. This further indicates that the fabric is the result of shortening symmetrical to the fabric. The state of strain in phacoidally cleaved shales remains ambiguous because of a lack of strain markers and because there is no prefabric frame of reference with which to evaluate it.
    • 3-D printed heterogenous substrate bandpass filters

      Nesheiwat, Issa (2021-09)
      With the demand for increasing frequencies in today’s communications systems, compact integrated circuits are challenging to achieve. Compact filters have typically been realized by modifying the circuit design including using LC resonators, defective ground structures, and adjusting the length ratios of resonators. Heterogenous substrates with controlled regions of dielectric loading offer a new design approach when it comes to manufacturing an RF component. In this thesis, additive manufacturing is used to selectively place low-K and high-K dielectric materials to achieve a compact form factor, improved bandwidth, and higher suppression in re-entry modes. First, microstrip coupled strip lines are simulated to model the basic coupling effects of loading a substrate. Next, three 2.45GHz parallel coupled bandpass microstrip filters are designed with differing substrates: low-K, high-K and high-K loaded to analyze the impact of loading within the substrate. The filter substrates are manufactured using a dual-extrusion FDM 3-D printer to combine both dielectrics, low-K ABS, and high-K PrePerm ABS1000, into a single heterogeneous substrate. Compared to the low-K dielectric alternative, the high-K loaded filter demonstrated a 30.8% decrease in length, while maintaining similar bandwidth and suppression of re-entry modes. Compared to the high-K filter, the high-K loaded filter showed a 9.4dB reduction in re-entry mode suppression, while maintaining similar footprint size.
    • Analysis of ground plane size, topography and location on a monopole antenna's performance utilizing 3-D printing

      Ciraco, Vito (2021-09)
      The monopole antenna is widely used in communication applications and is typically mounted on various surfaces that act as ground planes; a prime example being the roof of a car. The shape of the ground plane can drastically change the patterns of the electromagnetic radiation of a monopole antenna as well as its RF performance. Extensive work [1,12-13] has been done on the numerical modeling of arbitrarily shaped ground planes. However, due to their geometric complexity, there is very little work reported on the practical testing component of physical antennas with these obscure ground plane structures. This thesis illustrates how the additive manufacturing process presented can be used to physically realize arbitrarily shaped ground planes and provides a low-cost process to verify the numerical model. Ground Planes were modified while maintaining the same antenna length to evaluate the impact on antenna performance. The antenna was not optimized or changed to a standard antenna design. Varying radius spherical ground planes are modelled, as well as modified ground plane structures to evaluate the impact of the ground plane on a 1.3GHz monopole antenna's performance and in some cases to modify the antenna's performance in terms of gain, bandwidth, and radiation pattern. Designs such as the planar ground with horn was found to enhance monopole bandwidth by more than 5 times that of a standard planar ground but significantly deteriorate the antenna's radiation pattern. Moreover, complex geometry such as the fin sphere ground plane offered a 25% increase in gain relative to the standard sphere ground. Designs like the edge-mounted sphere can offer directive gain and radiation characteristics simply by altering the antennas' location mount location with respect to its ground plane. The techniques presented in this thesis offer new ways of producing 3-D printed ground planes for RF applications that are easier to manufacture, lighter in weight, and can enhance antenna performance over their conventional counterparts.
    • You can’t be first but you could be next… : MFA Thesis - Printmaking

      Reynolds, Matt (2021-08)
      My work is intended to target the hypocrisy that is found in many white suburban communities, with which I am very familiar as I have lived on Long Island NY for most of my life. Many think that because the abuse of power by the police disproportionally targets minority communities, that they shouldn’t care, or that the victims are somehow at fault. Even those who were asleep in their own homes, such as Breonna Taylor, are not safe. It is my view that we are not free until everyone is free.
    • Music technology and music therapy practice: a survey of current practice with recommendations for future research

      Rothenberg, Elena (2021-08)
      The purpose of this study was to learn what technology is currently being used by music therapists. The data was collected via a one-time online survey. The participants were 153 board-certified music therapists who use technology within clinical practice. Survey results were analyzed, revealing that the most common type of technology reported among respondents was Interactive Apps on iPads (n = 93). Survey results discuss technology use with music therapy methods. iPad (n = 93) and electrical instruments (n = 51) were the most commonly used technology among respondents. Respondents reported using GarageBand the most across all four music therapy methods with 15.28% of respondents using GarageBand for improvisation, 16.67% using it for recreative methods, 65.38% using GarageBand to compose, while 2.78% use it for receptive methods. The need for inclusion of technology in music therapy education as well as recommendations for future research are discussed.
    • Blue and white in oil: MFA Thesis - Ceramics

      Wang, Yage (2021-08)
      Depictions of ceramic objects in European and American oil paintings are appropriated onto porcelain forms that look like stretched canvases. I explore the relationship between east and west through re-interpretation of western artifacts based on my own projection without permission. Collectively, they are an obnoxious attempt to insert my identity into a history that had already identified and fetishized “me”. My identity retold in sculptural forms are grand, inflated, boastful, and full of insecurity.
    • Functional analysis of Paramecium genes responsiveness to Holospora infection

      Bright, Lydia; Weiler, Jared (2021-05)
      Paramecium caudatum is a single-celled ciliate that sweeps food into its oral groove to acquire nutrients. The cells become infected through this feeding apparatus by Holospora undulata, an obligate endosymbiont that occupies the micronucleus of P. caudatum in two morphologically distinct forms, the infectious and reproductive forms. Once the P. caudatum cells begin to starve, the reproductive forms of the parasitic bacteria consume most of the food in the micronuclei and differentiate into infectious forms. The bacteria eventually break out of the cell and seek other hosts to infect. To better understand the mechanism by which H. undulata successfully infiltrates their host’s defense systems, P. caudatum strains were infected and varying levels of susceptibility to infection were identified. Whole genome RNA sequencing found that certain proteins are significantly upregulated upon uptake of the H. undulata. By cloning the significantly up-regulated genes into E. coli, feeding this silencing media to naïve stocks of P. caudatum, and analyzing the infection phenotype of each, we hoped to characterize the genes that function in the infiltration of H. undulata. Varying levels of infection prevalence were seen amongst the gene knockdowns and across replicates of each infection. However, five knockdowns show significant resistance compared to their respective controls, revealing a possible involvement of 5 genes in H. undulata susceptibility. After finding which genes are capable of inducing resistance, we plan to identify the associated proteins and track the gene’s evolutionary divergence in P. caudatum strains with varying infectability.
    • “The Most Anxious Generation”: the relationship between Gen Z students, social media, and anxiety

      Vultaggio, Gabrielle (2021-05)
      This proposed study explores the relationship between Gen Z students and anxiety. The primary research of this study is based off of four interviews with current Gen Z college students, as well data collected from peer reviewed studies, government data and statistics. This study has revealed that a post-graduation fear of the unknown plays a large role in the upwards trend of anxiety disorders among Gen Z college students. This is heavily influenced by the increasing use of technology and the effects of social media, like FOMO, pressures of social comparison, and the immediacy of results. School, politics, school shootings, and financial worries are also deciding factors of mental health issues among this age group.
    • Plautilla Nelli & Lavinia Fontana: hidden gems of the Italian Renaissance

      Vrachopoulos, Katherine (2021-05)
      Women of the Italian Renaissance faced extreme adversity and oppression from the structural sexism that limited their space to the domestic sphere. The female role was limited in the arts to menial tasks such as grinding paints, painting backgrounds and preparing canvases. Religion became the main pathway into the arts for women, which can be seen in the labor and accomplishments of Dominican Sister Plautilla Nelli. Not only did she teach herself how to paint, but she likely also taught her religious sisters. This act was critical to her success as she was able to form a workshop through which the nuns had a high output, and increased the convent’s revenue. Nelli completely removed men from the equation of art production, using them as conduits to ship works to their patrons. She innovated the field through her extreme organization, and her financial and entrepreneurial skills. Nelli paved the way for more female artists to rise to prominence through her independence and intellect. Lavinia Fontana’s success provides an alternative way for cinquecento women to rise to greatness. Through the assistance of her father, Fontana became a skilled artist whose work would be internationally known. To avoid the limitations of society, she married a man who helped her achieve her success and potential. After continued success, Fontana proved that there was space in the art world for more women like herself.
    • Art, objects, and memories

      Voska, Katherine (2021-05)
      As humans, there are millions of factors that shape our identities. From culture, geographic location, and family life, to education, career path, and sexuality, every aspect of our lives make us who we are. For me, the work I make as an artist and a student is a result of my identity. I am a straight, half Japanese, half American, cisgendered woman, raised in the same small town for most of my life. My parents were married for over 25 years until they separated the summer before my senior year of high school. I am the third generation of my family to be living in the same childhood home. I was raised to appreciate nature, history, and to be more giving than those who gave to me. I attend a liberal college where I majored in art but took classes in history, philosophy, music, film, language, and culture. All of these things have affected my perspective of others, the world around me, and how my work fits into it. As a society that prides themselves on the things that they own and possess, what do the objects I create add? This exhibition highlights my life and how the objects I create are influenced by other objects, my identity and experiences.
    • Measuring gene expression of MORN, SANT, and Sig 1, “ ” 4, in Paramecium caudatum over the course of Holospora infection

      Vislocka, Karin (2021-05)
      Paramecia are single-celled organisms that live in ponds and feed on other single celled organisms like bacteria or algae. They are typically oblong and are covered with short structures called cilia. They have interactions with bacteria as they are infected intranuclearly by Holospora. Paramecium caudatum is known to express genes such as MORN, SANT, and Sig 1, “ ”, 4. Paramecium shows a response upon infection by Holospora as it navigates through the various stages of infection. The Holospora bacteria may cause varying degrees of expression of genes in the single celled organism. The genes were chosen due to their upregulation in Paramecium in a previous RNA sequencing study (Kagemann et al, in prep). Through the use of microscopy, imaging and qPCR, gene expression was tracked in the control and in the samples in which MORN, SANT, and Sig 1, “ ”, 4 genes were knocked down. The amount of gene expression was measured in each stage of the infection using qPCR. A comparison was made between the results of the control samples, which have no knocked down genes, to the samples which have knocked down genes. The amplitude of expression between Sig 1, Sig 2, Sig 3, and Sig 4 was compared as they function as protein kinases in Paramecium caudatum.
    • Literature for liberation: the development and application of black children’s literature

      Vasta, Tessa America (2021-05)
      One of the greatest injustices being committed against minority people in the United States is a lack of representation in literature. The curriculum being used in the vast majority of schools lacks representation of anyone who is not white. The few times minorities are represented, it is stereotypical or racist. This lack of representation ultimately silences students and discourages them from engaging in school. Which then snowballs into greater problems later on, fewer opportunities, dropping out, school to prison pipeline. In order to lessen the achievement gap between white students and students of color, improvements must be made in the US education system.
    • Plagued filmmaking

      Vallone, Anna (2021-05)
      In the fall of 2020, I and a team of three other Media Production majors embarked on our senior capstone film. I knew it would be challenging when I took on the project, as well as accepted the responsibility of being the Director of Photography as well as an editor, but I didn't expect my skills and knowledge of the major to be tested as much, and as thoroughly, as they were. However difficult, I'm thankful to have had such an outstanding support system of my three group mates, as well as our incredible professor, to make this project what it is now.
    • How do you feel about birth? A study on basic birth beliefs

      Thaler, Dalia (2021-05)
      The following study investigates the effect of reading one of two birth stories on opinions relating to birth philosophies. This study incorporates an experimental design to evaluate whether reading a birth story that takes place in a home correlates to participants leaning towards a Natural birth philosophy more than the Medical model of birth. There were 337 participants in the study (N=337) randomly assigned to one of two groups. The Version 1 group read a birth story that took place in a home and the Version 2 group read a birth story that took place in a hospital. The hypothesis was that reading the Home birth story would show a positive relationship with a Natural birth philosophy. The survey following the birth stories included items from the Birth Beliefs Scale from Yael Benyaminito and Heidi Preis created in 2016 at the Bob Shapell School of Social Work, Tel Aviv University. In the experimental study, the independent variable is having read the Home birth story. The dependent variable is the extent to which participants' numerical scores from their survey responses follow the Natural birth model on the Birth Beliefs Scale. The results show that participants who read the Home birth story reported scores aligned slightly closer with the Medical model, showing the results were not in line with the hypothesis.
    • The continuing problem of housing discrimination in America

      Tatunczak, Trevor (2021-05)
      This study provides a comprehensive review of housing discrimination in the United States throughout the twentieth and twenty-first centuries. African Americans and other non-white minorities have been subjected to discrimination in many sectors, including (but not limited to) employment, education, and housing. While the disadvantages faced by minorities in these sectors are all connected, the primary focus of this study is discrimination in housing. Along with a review of past housing discrimination practices, we will be looking at modern day practices that have been employed to perpetuate this unjust system. Furthermore, we will explore housing discrimination in Dutchess and Ulster Counties to provide a local context for a national problem.
    • Black youth identity development: using the Black Lives Matter movement as a wake-up call for improved cultural attunement for non-black human service workers

      Rodriguez, Tiana (2021-05)
      When considering youth development, it is essential to differentiate between non-Black youth and Black youth. Black youth may be struggling in other departments with family, addictions, homelessness, etc. but it is also essential to keep in mind that they are also Black which instantly puts targets on their back literally and figuratively due to institutionalized racism and the white supremacy so deeply rooted in our society. This is why using a human rights framework is significant to understanding and aiding Black youth development. Human service workers are historically human rights advocates, so this is a part of the work that they do.
    • The relationships between morphology, luminosity, and redshift in active galactic nuclei

      Bartholomew, Amy; Sporcic, Cole C. (2021-05)
      Active galactic nuclei (AGN) are an area of astronomy research with many questions still unanswered. This paper uses x-ray data taken from XMM-Newton to correlate different properties of AGN. In particular, we correlate morphology, luminosity, and redshift. We attempt to explain the trends we see, drawing on insight from the current scientific literature on AGN. We find trends consistent with a classification scheme based primarily on line of sight obscuration. Among other trends, obscured AGN have lower redshifts and luminosities, while unobscured AGN have higher redshifts and luminosities.
    • Immigration reform in America: the history of policies, their implications and effective interventions

      Sierra, Cory (2021-05)
      The history of immigration policies in the U.S. reveals an ongoing cycle that poses barriers for immigrants of all ages...These hardships put immigrants at higher risk for physical and mental illnesses and their lack of access to resources along with other barriers decreases their ability to seek or receive treatment. By examining the reasoning behind these policies as well as key factors that impair the wellbeing of immigrants the need for social support and access to services was identified.
    • Cobalt in the Democratic Republic of Congo: the cost of innovative technology and historical lessons in global economics for a more ethical future

      Seyler, Allison (2021-05)
      This paper focuses on the geologic and political history of the DRC and the effectiveness of existing legislation, including the Dodd Frank Act, and propositions for the Katanga mining sector, more specifically the mining of cobalt. Cobalt mining has also come under scrutiny with human rights groups, as Amnesty International released a report in 2016 finding that child labor and unsafe conditions were present in cobalt mines in the Katanga region. Cobalt is projected to continue to increase in value as the demand for EV and lithium-ion batteries increases (although recycling techniques and different types of lithium-ion batteries are being explored by manufacturers as an alternative to mining cobalt). This paper analyzes the legacy of colonialism in Katanga through a comparison with Chile, and the parallels between their histories and the corruption of their state mining companies. Through this lens, it can be seen that a different strategy can be employed in this region than with coltan in North Kivu, as the primary strategy of the Dodd Frank Act was to reduce violence by decreasing the size of the black market. Rather, business strategies can be employed that can be used to benefit the people of the Congo, as has been observed with CODELCO, the state mining company of Chile. Despite years of bloodshed from ethnic violence and political instability, the DRC shows signs of hope, as the first peaceful transition of power since their independence in 1960 occurred in 2019, and the chairman of Gécamines, the largest state mining company, announced that it would be changing and improving its business model and infrastructure beginning in 2019. The DRC has been called cursed for its geology, but rather it is cursed by colonial politics, greed, ethnic violence, and economic disadvantage. The geology of the region, and the necessity of minerals in a clean energy transition will not change. Perhaps this region’s natural resources can be used to promote development and peace, with the wellbeing of the Congolese people as a central focus.
    • How judicial action on racial gerrymandering has failed communities of color

      Ryan, Maeve (2021-05)
      Decisions by the U.S. Supreme Court have resulted in the allowance of both partisan and racial gerrymandering in certain cases. This research seeks to identify the impact that this precedent has on the substantive representation of people of color. The majority-minority district is the key example of racial gerrymandering that is currently legal in the United States. The congressional election results of six states were compiled to identify the impact that the use of majority-minority districts has on the number of votes that were essentially “wasted” in these elections. The findings suggest that majority-minority districts are being used as a method partisan gerrymandering. They also suggest that the votes of people of color within these districts are “wasted” and diluted at a much higher rate than other districts. The research concludes that the use of majority-minority districts is resulting in a loss of substantive representation for people of color.