El amor no se parece a esto

El presente proyecto de graduación tiene como tema a trabajar “la representación de la espacialidad en la narrativa” a través de un guion que traspasa la estructura clásica para responder a una decisión espacial en relación a la idea del “otro lado”, un lado que tiene peso aún cuando no se es visto. El guion trabaja sobre dos personajes y un espacio fraccionado, es por esto que, desafiando la estructura canónica y clásica, se tomó la decisión de dividirlo en dos columnas, una por personaje, intentando simular el lugar en que se encuentra cada una y que luego veremos de esta manera en el cortometraje. En este proyecto la espacialidad está representada desde un principio a través de lo que vemos y escuchamos en el guion, siendo el espacio parte del todo que, como un personaje más, se apropia del relato y le da sentido al mismo. De este modo, el espacio desde la narrativa, se halla al nivel de los personajes en función de revelar diferentes aspectos para contar la historia de un vínculo.Tesis colectiva en co-autoría con Amparo Barboza (ver "Documentos relacionados").Facultad de Arte

Z problematyki ochrony ludności. Istota ewakuacji w ujęciu powszechnym

The concept of evacuation has been widely used for centuries, both in colloquial speech and as part of arrangements and regulations relating to ensuring widely understood civil protection. The article presents the results of the review of bibliographic sources for purpose of identifying the nature and essence of the phenomenon of evacuation. Due to the identification of various approaches (including general and specialist), after systematizing and analyzing them within the framework of comparative studies, presented on the basis of two related articles, the author's definition of evacuation was proposed.Pojęcie ewakuacji jest od wieków w powszechnym użytku, zarówno w mowie potocznej, jak i w ramach ustaleń czy regulacji odnoszących się do zapewniania szeroko rozumianej ochrony ludności. W artykule przedstawiono wyniki dokonanego przeglądu źródeł bibliograficznych pod kątem identyfikacji natury i istoty zjawiska ewakuacji. Wobec zidentyfikowania różnorodnych ujęć (w tym ogólnego i specjalistycznego), po dokonaniu ich usystematyzowania i analizy w ramach studium komparatystycznego, przedstawionego na gruncie dwóch powiązanych ze sobą artykułów, zaproponowano autorską definicję ewakuacji

Paleogene origin of Planktivory In The Batoidea

The planktivorous mobulid rays are a sister group to, and descended from, rhinopterid and myliobatid rays which possess a dentition showing adaptations consistent with a specialized durophageous diet. Within the Paleocene and Eocene there are several taxa which display dentitions apparently transitional between these extreme trophic modality, in particular the genus Burnhamia. The holotype of Burnhamia daviesi was studied through X-ray computed tomography (CT) scanning. Digital renderings of this incomplete but articulated jaw and dentition revealed previously unrecognized characters regarding the jaw cartilages and teeth. In addition, the genus Sulcidens gen. nov. is erected for articulated dentitions from the Paleocene previously assigned to Myliobatis. Phylogenetic analyses confirm Burnhamia as a sister taxon to the mobulids, and the Mobulidae as a sister group to Rhinoptera. Shared dental characters between Burnhamia and Sulcidens likely represent independent origins of planktivory within the rhinopterid – myliobatid clade. The transition from highly-specialized durophagous feeding morphologies to the morphology of planktivores is perplexing, but was facilitated by a pelagic swimming mode in these rays and we propose through subsequent transition from either meiofauna-feeding or pelagic fish-feeding to pelagic planktivory

Ecological and Phenotypic Diversification after a Continental Invasion in Neotropical Freshwater Stingrays

Habitat transitions are key potential explanations for why some lineages have diversified and others have not—from Anolis lizards to Darwin\u27s finches. The ecological ramifications of marine-to-freshwater transitions for fishes suggest evolutionary contingency: some lineages maintain their ancestral niches in novel habitats (niche conservatism), whereas others alter their ecological role. However, few studies have considered phenotypic, ecological, and lineage diversification concurrently to explore this issue. Here, we investigated the macroevolutionary history of the taxonomically and ecologically diverse Neotropical freshwater river rays (subfamily Potamotrygoninae), which invaded and diversified in the Amazon and other South American rivers during the late Oligocene to early Miocene. We generated a time-calibrated, multi-gene phylogeny for Potamotrygoninae and reconstructed evolutionary patterns of diet specialization. We measured functional morphological traits relevant for feeding and used comparative phylogenetic methods to examine how feeding morphology diversified over time. Potamotrygonine trophic and phenotypic diversity are evenly partitioned (non-overlapping) among internal clades for most of their history, until 20–16 mya, when more recent diversification suggests increasing overlap among phenotypes. Specialized piscivores (Heliotrygon and Paratrygon) evolved early in the history of freshwater stingrays, while later trophic specialization (molluscivory, insectivory, and crustacivory) evolved in the genus Potamotrygon. Potamotrygonins demonstrate ecological niche lability in diets and feeding apparatus; however, diversification has mostly been a gradual process through time. We suggest that competition is unlikely to have limited the potamotrygonine invasion and diversification in South America

Resolving Commingling, Restoring Identity: An Interdisciplinary Collaboration and Ethical Study of Individuals from a Human Skeletal Teaching Collection

In Fall 2022, human skeletal remains were discovered in the Department of Biology’s Comparative Vertebrate Anatomy Laboratory. No documentation about the acquisition or curation history was found. With no current protocols for repatriating individuals in university skeletal teaching collections, an interdisciplinary research team analyzed the skeletal remains to resolve to commingle and identify the people. Using standardized methods in forensic anthropology, we estimated the minimum number of individuals represented through taphonomic, demographic, paleopathological, and morphological variables and variation. Results indicated, minimally, 36 to 56 individuals represented by 250 bones. Of these individuals, 12 were estimated as probable female, 16 as probable male, 3 as intermediate, and 5 as indeterminate adults. All bones were associated with adult individuals, and estimated ages ranged from 20 to 50 years. Average stature estimates were below globally-reported average heights, and dentoalveolar conditions suggested poor oral health for at least five of the individuals. Cranial measurements from five individuals were consistent with variations recorded in modern and historical African and Asian populations. Taphonomic findings of postmortem bone processing (e.g., bleaching, articulation, and hardware features) identify these individuals as non-consenting bodies of the global (Carolina Biological Company) and local (anatomy departments and medical schools) bone trade. Their acquisition and postmortem treatment highlights a long history of objectification, exploitation, and dehumanization. In this skeletal analysis, we have endeavored to restore aspects of these individuals’ identities by reassociating bones to individuals and presenting the biological variation embodied in these remains

Trends in Chondrichthyan Research: An Analysis of Three Decades of Conference Abstracts

Given the conservation status and ecological, cultural, and commercial importance of chondrichthyan fishes, it is valuable to evaluate the extent to which research attention is spread across taxa and geographic locations and to assess the degree to which scientific research is appropriately addressing the challenges they face. Here we review trends in research effort over three decades (1985–2016) through content analysis of every abstract (n = 2,701) presented at the annual conference of the American Elasmobranch Society (AES), the oldest and largest professional society focused on the scientific study and management of these fishes. The most common research areas of AES abstracts were reproductive biology, movement/telemetry, age and growth, population genetics, and diet/feeding ecology, with different areas of focus for different study species or families. The most commonly studied species were large and charismatic (e.g., White Shark, Carcharodon carcharias), easily accessible to long-term established field research programs (e.g., Lemon Shark, Negaprion brevirostris, and Sandbar Shark, Carcharhinus plumbeus), or easily kept in aquaria for lab-based research (e.g., Bonnethead Shark, Sphyrna tiburo). Nearly 90% of all described chondrichthyan species have never been mentioned in an AES abstract, including some of the most threatened species in the Americas. The proportion of female* first authors has increased over time, though many current female* Society members are graduate students. Nearly half of all research presented at AES occurred in the waters of the United States rather than in the waters of developing nations where there are more threatened species and few resources for research or management. Presentations based on research areas such as paleontology and aquarium-based research have declined in frequency over time, and identified research priorities such as social science and interdisciplinary research are poorly represented. Possible research gaps and future research priorities for the study of chondrichthyan fishes are also discussed

The tooth, the whole tooth and nothing but the tooth: tooth shape and ontogenetic shift dynamics in the white shark Carcharodon carcharias

Ontogenetic dietary shifts are widespread across the animal kingdom, and often involve associated morphological changes in foraging phenotype. These changes may differ between sexes or vary between individuals, and are important factors in the ecology of species. While such factors have received much attention in terrestrial systems, they are much less well understood in marine taxa. The white shark Carcharodon carcharias is a marine apex predator that is accepted to provide a classic example of an ontogenetic dietary shift, with an associated change in tooth morphology from cuspidate to broad. Our results however, which include measurements obtained using a novel photographic method, reveal significant differences between the sexes in the relationship between tooth cuspidity and shark total length (TL), and a novel ontogenetic change in male tooth shape. Males exhibit broader upper first teeth and increased distal inclination of upper third teeth with increasing length, while females do not present a consistent morphological change. Substantial individual variation, with implications for pace of life syndrome, was present in males, and tooth polymorphism was suggested in females. Sexual differences and individual variation may play major roles in ontogenetic changes in tooth morphology in white sharks, with potential implications for their foraging biology. Such individual and sexual differences should be included in studies of ontogenetic shift dynamics in other species and systems

Hydrogen Storage Materials for Mobile and Stationary Applications: Current State of the Art

One of the limitations to the widespread use of hydrogen as an energy carrier is its storage in a safe and compact form. Herein, recent developments in effective high-capacity hydrogen storage materials are reviewed, with a special emphasis on light compounds, including those based on organic porous structures, boron, nitrogen, and aluminum. These elements and their related compounds hold the promise of high, reversible, and practical hydrogen storage capacity for mobile applications, including vehicles and portable power equipment, but also for the large scale and distributed storage of energy for stationary applications. Current understanding of the fundamental principles that govern the interaction of hydrogen with these light compounds is summarized, as well as basic strategies to meet practical targets of hydrogen uptake and release. The limitation of these strategies and current understanding is also discussed and new directions proposed