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Exploring the Relationship Between Memory Decline and Neural Loss in Aging Cotton Top Tamarins (Saguinus oedipus)
No full textIt is imperative to understand the cognitive and neural toll of the natural aging process to support the world’s aging population (Caplan & Rabe, 2023). Using a non-human primate model, cotton top tamarins (Saguinus oedipus), the present study examines memory decline, and how it correlates with neuronal volume loss and age. Eight subjects (five females and three males) participated in cognitive tasks and neurophysiological analyses in this experiment. Memory loss was measured using a delayed matching-to-sample task and an episodic memory task (see Neiworth et al., 2023). Neuronal volume was estimated in the frontal lobe and hippocampal formation by a neural count of brain sections from the monkeys post-mortem. There was a predictable decline in working memory with age, but surprisingly, a stability in episodic memory performance. Physiological analyses revealed a strong correlation between hippocampal neuronal volume and cognitive decline in both tasks, suggesting hippocampal neuronal volume is the best predictor for both kinds of memory decline in cotton top tamarins. Through these experiments, it is clear that this animal model displays a similar aging pattern to humans. Recommendations for human-like tests of cognitive performance for primates to capture the effects of aging are presented, and further suggestions of the usefulness of studying aging and neural loss with memory decline in nonhuman primates is discussed
Exploring Elliptic Curve Cryptography in Blockchain Security
No full textIn this paper, we explore the foundational principles of elliptic curve cryptography (ECC) and its role in blockchain security. We begin by introducing elliptic curves, presenting essential definitions and theorems, including the Weierstrass form, non-singularity conditions, and the group law governing elliptic curve groups. Next, we examine the structure of elliptic curve subgroups, covering torsion points, cyclic subgroups, and efficient scalar multiplication techniques necessary for cryptographic implementation. Building on these foundations, we discuss cryptographic protocols such as the Elliptic Curve Diffie-Hellman (ECDH) key exchange and the Elliptic Curve Digital Signature Algorithm (ECDSA), emphasizing the Elliptic Curve Discrete Logarithm Problem (ECDLP) as the basis of ECC’s security. Additionally, we analyze classical threats, including Pollard’s rho algorithm, and consider potential adaptations for ECC to meet evolving security needs
Adriel Barham Comps
No full textThis collection explores themes of value, repair, purpose, and connection through abstract sculptures. Inspired by the concept of Kintsugi, the Japanese technique for repairing broken ceramics with lacquer and gold dust, I use gilded elements to bind and connect discarded wood, industrial and scrap metal, and clay vessels manipulated beyond functionality. Subverting the idea of repair, this process gives the materials a second life and renewed sense of value without adding any practical utility. These pieces celebrate “flaws”, transforming fractured forms into moments of beauty, appreciation, and reflection. My work process is guided by the natural tendencies of the materials, interpreting their inner forms through intimate, technical, yet unscripted labor
Geothermobarometry of Metamorphic Rocks Associated with the Sanak-Baranof Plutonic Belt in the Chugach-Prince William Terrane, Southern Alaska
No full textThe southern Alaska margin is a complex geologic region with a history of subduction-accretion, plutonism, and metamorphism. The Chugach–Prince William accretionary terrane (CPW) is intruded by the Sanak-Baranof plutonic belt, a series of intrusions associated with ridge subduction in the early Eocene. The opening of a slab window and associated pluton intrusion is associated with metamorphism in the CPW, but detailed geothermobarometry of these rocks is largely absent. Results from conventional geothermobarometry, iterative thermodynamic modeling, and quartz-in-garnet elastic geobarometry for three samples from the CPW yield the highest pressure and temperature in the Boundary Block of 623–813 MPa and 580–612°C. Two hundred thirty kilometers south of the Boundary Block, in Glacier Bay National Park, a garnet staurolite schist yields similar pressures and temperatures of 532–669 MPa and 569–585°C. However, just across Icy Strait, approximately 35 km south of Glacier Bay, an andalusite-bearing garnet staurolite schist yields 426–465 MPa and 554–560°C, well outside of the andalusite stability field. These results indicate that these samples do represent different exhumed crustal levels, with upper crustal rocks exposed in the south and lower crustal levels in the north
The Dark Side of the Festival “Tolstoy”: National Identity and the Manipulation of Leo Tolstoy’s Legacy in Russia
No full textGlobal Citizenship for Civic Education
No full textWhile no one comes into the world directly responsible for global injustices such as inequity, individuals benefit from these systems. Many people live in societies on the receiving end of inequity, such as that of resources, and eventually contribute to it themselves – just by living. In countries such as the U.S. that consume vastly more than they produce and have higher incomes, individuals such as myself consume goods and services connected to global commodity chains; we participate in the worldwide economy and, therefore, global injustice. This observation does not entail that individuals who benefit from the system do not also suffer its consequences. It does not suggest that there is an “escape,” a perfect way of living that does not further the problem, or that somehow “not consuming” is the answer. While it may be convenient to think we are wholly under the control of these systems, I want to make the case that we can respond. Civic education is one way of reclaiming some of this individual agency
My Feminism Can\u27t be Divided : Advocating for Feminist Peace in Kosovo and Palestine-Israel
No full textFeminist mobilization and peacebuilding are issues that have been broached within Political Science, with scholars such as Kaufman and Williams, Cockburn, Anderson et al., and Diehl theorizing and researching these issues. Despite this, limited research has been done to bridge the gap between feminist mobilization and peacebuilding. This paper is attempting to fill that gap by imagining how feminist mobilization and peacebuilding can work in tandem in order to understand what feminist peacebuilding can and does look like. This paper uses interview methods to address how women in the ongoing conflict Palestine-Israel and post-conflict Kosovo advocate for feminist peace. I conducted 21 semi-structured interviews with women in both countries and used case study evidence to address the question of how feminists advocate for peace. Specifically, I am trying to understand whether feminist peace is different from mainstream peace as well as the impact, if any, of the type of state- conflict, post-conflict, contested, etc.- on the strategies used to advocate for a feminist peace. I argue two main findings: 1) conflict environment, while important, does not necessarily impact strategies used by women advocating for peace and 2) what might be more telling is whether women advocating for peace do not delineate between feminist goals and national goals, highlighting that a sustainable peace is a feminist peace and vise versa
