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A histological investigation of \u3ci\u3eArceuthobium pusillum\u3c/i\u3e infections in \u3ci\u3ePicea rubens\u3c/i\u3e and \u3ci\u3ePicea glauca\u3c/i\u3e
Full text linkArceuthobium pusillum is a hemiparasite that infects select Picea species. The hosts of A. pusillum do not experience the same symptoms of infection. A. pusillum infections are more fatal to P. marinara, and P. glauca. P. rubens, on the other hand, can survive longer with sustained infection. This presents itself as a contemporary issue because P. glauca, one of the parasite’s most vulnerable hosts, was untethered from ecological competition when old growth forests were subjected to large scale anthropogenic disturbances. These disturbances allowed P. glauca to proliferate, with A. pusillum following. A deeper understanding of the host-species specific responses to A. pusillum infection can broaden general knowledge of parasitic growth and development while also potentially inspiring conservation techniques. This study took advantage of the intrinsic differences between host and parasite to visualize infections in P. rubens and P. glauca, highlighting differences in infection outcome. By illuminating lignin and callose within cross sections of infected P. rubens and P. glauca branches, it was revealed that P. rubens forms dense bands of cells around the cortical strands of infection. These bands form more frequently in P. rubens than in P. glauca and are of a significantly larger area in P. rubens than in P. glauca (t(8), p=0.003, p=0.005). The discovery of the exterior bands is novel and exciting, as the bands are possibly made of callose and potentially facilitate P. rubens survival against A. pusillum infection. The foundational discoveries and results of this study should inspire, and warrant, further analysis
Mythologies modernes : à la recherche des écrivaines dans la capitale littéraire de Paris de l’entre-deux-guerres
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Creating Enantioselective Peptoid Catalysts with 2-Picolylamine and 2-Picolinic Acid Catalytic Sites
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I Am Bearing Myself in the Mouth of the Sun
No full textI Am Bearing Myself in the Mouth of the Sun is an evening-length performance designed, choreographed, and performed by Dylan Austin Richmond. This work is an exploration of dance’s ability to interrogate the structural and interpersonal violence that bleaches the Black, male, American body in order to access community, liberation, and most fruitfully, joy. Based on personal, historical, theoretical, and embodied research, I Am Bearing Myself in the Mouth of the Sun uses Ntozake Shange’s choreopoetic methodology to circumvent Eurocentric limitations and express feelings and knowledge outside of and beyond the “reasonable” notions of this world. Richmond’s work reimagines embodied expression, weaving video-projection and fabric work with dance, poetry, and music. In doing so, this work invites tense engagements with the audience and intimate conversations about willow trees, peach tea, and the universe. Ultimately, Richmond conjures up a kind of magic that transcends time and space
Distance Based Pre-clustering for Deep Time-Series Forecasting: A Data Selection Approach
No full textHigh-frequency financial time series forecasting is only lightly explored in academic literature. Challenges arise from the nature of the data, which is noisy, voluminous, time-dependent, and sequential. This paper proposes a clustering framework for such data utilizing data partitioning for deep learning model training. We perform a comparative analysis using multiple distance-based clustering methods and time series-specific distance metrics to select training data for recurrent neural forecasting models. Evaluating our approach over a three year period for three large-cap technology stocks, we find that models trained on the partitioned data achieve lower loss values and increased directional prediction accuracy compared to equivalent models trained without partitioning
The Ethiopian Student Movement and the Dilemma of Eritrean Sovereignty
Full text linkFrom the perspective of Ethiopian royalists, Pan-Africanists, Marxist internationalists, supports of union, and the broader international community, Eritrean nationalism revealed distressing fissures in many different arguments for preserving Ethiopian territorial unity– arguments not necessarily or explicitly problematic, but nevertheless in opposition to Eritrean demands for the right to national self-determination. For the Ethiopian Student Movement (ESM) specifically, Eritrean sovereignty demanded a reconfiguration of Pan-African unity that conflicted with Ethiopian exceptionalist historiography. Through an analysis of student politics at Haile Selassie University, from 1960-1974, this thesis seeks to complicate existing historiography on the ESM by examining the periodically divergent experiences of Eritrean student activists
Ionic Liquids as Additives for Metal-Organic Framework Crystallization
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Prendersi Cura: Taking Care of Nature in Perugia, Italy
Full text linkCities need more green spaces to adapt to climate change and facilitate community resilience. However, successfully managing green spaces is challenging. City governments consistently employ top-down management practices that limit the benefits, usage, and perception of such spaces as Nature. Further, current management practices overlook socio-cultural factors important to residents. Using the existing categories of urban green spaces (UGS) and informal green spaces (IGS), this article situates the cultural practice prendersi cura as a way to conceptualize successful, bottom-up green space management. The term prendersi cura, meaning “to take care of” in Italian, emerged through interviews in Perugia, Italy, and reflects the socio-ecological value of IGS and the disconnect between residents and city-managed UGS. This study employed mixed methods, combining 10 weeks of participant observation, 13 interviews, and GIS analysis to understand the relationship between Perugians and their green spaces. Results indicate that interviewees did not describe city-supported UGS (i.e. top-down green spaces like parks or historic gardens) as Nature, even if they were areas of dense vegetation and recognized by the City of Perugia in GIS analyses. In contrast, interviewees described IGS (i.e. community gardens, vacant lots, or potted plants) that were unrecognized in city GIS visualizations as Nature, indicating a stronger attachment to green spaces when interviewees had active roles in their management or witnessed community-based management practices. This paper demonstrates the importance of managing green spaces through a socio-ecological framework that considers user perceptions and cultural values. To allow greening initiatives to reach their full potential, it is critical to embrace local values and participation in management practices
Pathways: Montana Stories and Poems
No full textPathways: Montana Stories and Poems is a collection of five short stories and twenty poems written under the direction of Professor Anthony Walton. In these stories and poems, I contend with my hometown, Dillon, Montana and questions of legacy, responsibility, guilt, identity, and home. The first section, Circling, draws a sketch of Dillon, Montana, with a focus on the ways that the past and present inform each other. The second section, Dead Ends, tells the story of a toxic relationship, and the harm it does to the protagonist and members of the community. The third section, Turning, follows characters in two stories, “Settling” and “Tornado Watch,” as they make choices that will define their lives. The fourth section, To the Sea, describes a home-coming, and the forces that pull us back from destruction
