Fourier-Mukai functors and perfect complexes on dual numbers

We show that every exact fully faithful functor from the category of perfect complexes on the spectrum of dual numbers to the bounded derived category of a noetherian separated scheme is of Fourier-Mukai type. The kernel turns out to be an object of the bounded derived category of coherent complexes on the product of the two schemes. We also study the space of stability conditions on the derived category of the spectrum of dual numbers.Comment: 23 pages, Final version to appear in J. Algebr

Sex morphs and invasiveness of a fleshy-fruited tree in natural grasslands from Argentina

Invasiveness has usually been studied as a species-level attribute; nevertheless, phenotypic differences between individuals in a population can lead to significant variations in colonization ability. In this paper, we analyse the potential effects of sex morphs of Prunus mahaleb, a gynodioecius fleshy-fruited tree, on its invasiveness in natural grasslands in the southern Argentine Pampas. We assessed the abundance of both hermaphrodite and female plants and compared their fecundity, propagule size and germination response. We found that the females were less abundant in the invasive populations studied, apparently since the beginning of the colonization. However, our results demonstrated that at the present time females do not show any fecundity reduction, which clearly shows that P. mahaleb has established an effective interaction with generalist pollinators which compensates for the apparent disadvantage of females. Fruit set showed a wider range of variability over time in the females than in the hermaphrodites, which could be the consequence of greater susceptibility to changes in the activity of pollinators. We found no evidence of a female benefit due to reallocation of resources or better outcrossed progeny considering propagule size and germination. We discuss the relative importance of sex morphs and interactions at different stages of the invasion process.Fil: Amodeo, Martín Raúl. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Grupo de Estudios en Conservación y Manejo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Zalba, Sergio Martín. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Grupo de Estudios en Conservación y Manejo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

The relation between mass and concentration in X-ray galaxy clusters at high redshift

Galaxy clusters are the most recent, gravitationally-bound products of the hierarchical mass accretion over cosmological scales. How the mass is concentrated is predicted to correlate with the total mass in the cluster's halo, with systems at higher mass being less concentrated at given redshift and for any given mass, systems with lower concentration are found at higher redshifts. Through a spatial and spectral X-ray analysis, we reconstruct the total mass profile of 47 galaxy clusters observed with Chandra in the redshift range $0.4<z<1.2$, selected to have no major mergers, to investigate the relation between the mass and the dark matter concentration, and the evolution of this relation with redshift. The sample in exam is the largest one investigated so far at $z>0.4$, and is well suited to provide the first constraint on the concentration--mass relation at $z>0.7$ from X-ray analysis. Under the assumptions that the distribution of the X-ray emitting gas is spherically symmetric and in hydrostatic equilibrium, we combine the deprojected gas density and spectral temperature profiles through the hydrostatic equilibrium equation to recover the parameters that describe a NFW total mass distribution. The comparison with results from weak lensing analysis reveals a very good agreement both for masses and concentrations. Uncertainties are however too large to make any robust conclusion on the hydrostatic bias of these systems. The relation is well described by the form $c \propto M^B (1+z)^C$, with $B=-0.50 \pm 0.20$, $C=0.12 \pm 0.61$ (at 68.3\% confidence), it is slightly steeper than the one predicted by numerical simulations ($B\sim-0.1$) and does not show any evident redshift evolution. We obtain the first constraints on the properties of the concentration--mass relation at $z > 0.7$ from X-ray data, showing a reasonable good agreement with recent numerical predictions.Comment: A&A accepted, 18 pages, 13 figures, 1 Appendi

Catch a Fire Catch Afire: An Understanding of Distance and Its Meaning

This project is a collection of my poetry written and edited during three years of study and living while at Syracuse University. It is the attempt of a young woman to widen a specific avenue of self-discovery while working on my talents and skills as a writer and poet. Catch a Fire Catch Afire: An Understanding of Distance and Its Meaning is my pursuit of deconstructing how I become aware of: distance from myself, distance from my loved ones, distance from God, distance from places and distances from where I am at any given point in my life. The process of coming to terms with the complexities and intricacies of one’s own life can have a profound effect on the author, as well as the reader. Initiating that effect is an aim of this collection. This project has changed gears several times, as creative endeavors often do. I am pleased, however, that each change was the result of an important and useful life experience. Every time I saw my work shifting into a new shape, I saw that it had transformed into a new understanding and perspective of distance. My method for writing this collection was to write as often as possible in order to produce as many honest poems as I could. Typically my process included: I was inspired through various means and in turn sat down to create from that inspiration. After this first creation, I either let it sit for a few days or I would edit immediately after initially writing it. This depended greatly on how attached or invested I was in the particular poem. With each poem, after I had written it for the first time, I would take the paper and tape it to my bedroom wall. After some time the wall was plastered in random pieces of paper. But looking at my work this way and following the many and different editions I had made allows me to see the progress of a particular poem, as well as the progression of many separate works all at once. I chose a number of poems from the wall to consider and edit at a time. This method is important because the stages the posted papers took echoed the stages of my own understanding of distance and its meaning. Catch a Fire Catch Afire: An Understanding of Distance and Its Meaning has taken its final form and is ready to change the reader in a previously unknown poetic experience. I hope its effect finds you ready and willing

Milo R. Kniffen Case File on Panther Mountain Dam, 1923-1965

The collection consists of Milo R. Kniffen\u27s legal files as attorney for the Association for the Protection of the Adirondacks (AfPA) in the organization\u27s successful fight against the proposed Panther Mountain Dam.https://digitalworks.union.edu/arl_findingaids/1046/thumbnail.jp

UMass Brut: Re-imagining the Plinth

Modeled on UVA’s Lawn, Paul Rudolph’s mid-century Brutalist UMass Dartmouth buildings march down both sides of a gently sloped great lawn following the grade with one exception, the Auditorium, which is raised above the quad’s lawn on a 6’ high plinth, accessed by monumental stairs underscoring the entire building. With its entries elusively tucked into the ends of the building, the Auditorium steps were ceremonial at best and vacant, functionless and windswept at worst. Evolving tastes, priorities and social behavior over subsequent decades, and even more recently, the pandemic, have made indoor/outdoor relationships, outdoor space, and universal access a top priority, thereby rendering these highly minimalist inaccessible and ceremonial plinths obsolete. In 2017, a massive steam tunnel replacement project required the demolition of the steps, offering an opportunity to implement a priority project of the recent Campus Vision Plan to activate the Auditorium steps. Landscape architect, John Amodeo, who worked on the Campus Vision Plan, will show how he used landscape design to re-imagine the UMass Dartmouth Auditorium’s plinth from the merely ceremonial to an activated place for students, faculty and staff to gather, socialize, learn and renew, while respecting the Rudolph legacy and preserving the Auditorium’s impressive stature

Arthur Crocker Collection, 1950-1993

Born in New York City in 1909, Arthur Crocker earned a bachelor’s degree in History and Politics from Princeton and an MBA from Harvard Business School. He went on to become a security analyst and account executive for the United States Trust Company of New York, a lieutenant in the US Navy, and independent investor. He was President of the Tahawus Club, President and Chairman of the Association for the Protection of the Adirondacks, a member of the Constitutional Council for the Forest Preserve, Vice Chairman of the Adirondack Council, and a board member of various other environmental organizations. The collection includes materials relating to his work with the AfPA and other environmental organizations. The collection strongly documents issues and events in the Adirondacks during the 1970s and 1980s and the AfPA’s reactions to them. Heavily represented are matters related to public and private land use and the balance in the ethical use of State lands between responsible forestry, conservation, and recreation. Issues such as acid rain and invasive species are well documented. The establishment of the APA and the public reaction to the agency’s work and its members and the resulting public outcry are also well documented. The collection closely follows the AfPA campaigns to generate public support through documentary films. Folders remain in their original titles and order.https://digitalworks.union.edu/arl_findingaids/1003/thumbnail.jp