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The Neutral Gaze : Women’s concentration camp experiences and Swedish remembrance of the Holocaust
Since Jean-Paul Sartre’s conception of le regard des autres in 1943, ‘the gaze’ has taken on many manifestations. The male gaze, the white gaze, the imperial gaze, the postcolonial gaze. All imply a power to objectify, to define an Other, usually from a distance or even, as Donna Haraway described objectivity, from 'nowhere.' Museums have always held the power to define Others while claiming objec
A mathematical vector operation for the stream power simulation from the digital elevation model
Rivers play a fundamental role in shaping the Earth’s surface and sustaining ecosystems. Accurate modeling and simulation of stream power are essential for understanding fluvial processes. As a measure of the energy exerted by overland flow, stream power possesses both magnitude and directional attributes. However, conventional simulation approaches based on scalar operations often neglect the dir
Solution to the OK Corral Model via Decoupling of Friedman's Urn
We consider the OK Corral model formulated by Williams and McIlroy and later studied by Kingman. In this paper we refine some of Kingman's results, by showing the connection between this model and Friedman's urn, and using Rubin's construction to decouple the urn. Also we obtain the exact expression for the probability of survival of exactly S gunmen given an initially fair configuration.
The loss of tension in an infinite membrane with holes distributed according to a Poisson law
What is the effect of punching holes at random in an infinite tensed membrane? When will the membrane still support tension? This problem was introduced by Connelly in connection with applications of rigidity theory to natural sciences. The answer clearly depends on the shapes and the distribution of the holes. We briefly outline a mathematical theory of tension based on graph rigidity theory and
The sensory and neuronal mechanisms underlying long-distance migration in insects
Many animals, such as birds and bats, are capable of migrating over vast distances to specific destinations. Remarkably, even insects such as the North American Monarch butterfly and the Australian Bogong moth undertake similarly long-distance migrations to specific sites. Here, we provide an overview of our current understanding of the migration of these insects and outline the sensory cues and n
Multipolar dynamics of social segregation : Data validation on Swedish vaccination statistics
We perform a validation analysis on the multipolar model of opinion dynamics. A general methodology for using the model on datasets of two correlated variables is proposed and tested using data on the relationship between COVID-19 vaccination rates and political participation in Sweden. The model is shown to successfully capture the opinion segregation demonstrated by the data and spatial correlat
Oxygen desaturation index and apnea–hypopnea index in relation to incident heart failure : The sleep apnea patients in Skaraborg study
Background Obstructive sleep apnea (OSA) is associated with cardiovascular morbidity; however, it remains unclear whether the apnea–hypopnea index (AHI) or the severity of nocturnal hypoxemia, in terms of oxygen desaturation index (ODI), is more relevant for the development of heart failure (HF). Methods We included 3590 participants from the Sleep Apnea Patients in Skaraborg Study (mean age 54.6
Markov Chains in a Field of Traps
We consider a Markov chain on a countable state space, on which is placed a random field of traps, and ask whether the chain gets trapped almost surely. We show that the quenched problem (when the traps are fixed) is equivalent to the annealed problem (when the traps are updated each unit of time) and give a criterion for almost sure trapping versus positive probability of nontrapping. The hypothe
Excited random walk on trees
We consider a nearest-neighbor stochastic process on a rooted tree G which goes toward the root with probability 1 − ε when it visits a vertex for the first time. At all other times it behaves like a simple random walk on G. We show that for all ε ≥ 0 this process is transient. Also we consider a generalization of this process and establish its transience in some cases.
A note on the lilypond model
We consider some generalizations of the germ-grain growing model studied by Daley, Mallows and Shepp (2000). In this model, a realization of a Poisson process on a line with points Xi is fixed. At time zero, simultaneously at each Xi, a circle (grain) starts growing at the same speed. It grows until it touches another grain, and then it stops. The question is whether the point zero is eventually c
Vertex-reinforced jump processes on trees and finite graphs
We study the continuous time process on the vertices of the b-ary tree which jumps to each nearest neighbor vertex at the rate of the time already spent at that vertex times δ, plus 1, where δ is a positive constant. We show that for fixed b > 1, if δ is large enough the process is transient, and if δ is close enough to zero it is recurrent. Related results for some other graphs and trees are also
Invariances and the Number Concept
Cognitive scientists Spelke and Kintzler (2007) and Carey (2009) identify objects, actions, space and numbers as “core domains of knowledge” that are essential for conceptualizing the world. Gärdenfors (2019, 2020) argues that objects, actions and space are characterized by invariances in sensory signals. In this paper, we extend the analysis of invariances to the domain of numbers (understood as
Early versus delayed anticoagulation in acute ischemic stroke with atrial fibrillation according to infarct volume and location : A prespecified subgroup analysis of the OPTIMAS randomized controlled trial
Background: Randomized trials have demonstrated that early anticoagulation after acute atrial fibrillation-associated ischemic stroke is safe and non-inferior to delayed initiation. Whether anticoagulation should be delayed in people with larger infarcts is uncertain. Aims: To investigate whether ischemic stroke infarct volume, measured precisely by segmentation, modifies the treatment effect of e
Hierarchical dynamics and time-length scale superposition in glassy suspensions of ultra-low crosslinked microgels
We employ small-angle x-ray and dynamic light scattering to investigate the microscopic structure and dynamics of dense suspensions of ultra-low crosslinked (ULC) poly(N-isopropylacrylamide) microgels. By probing the supercooled and glassy regimes, we characterize the relationship between the structure and dynamics as a function of effective volume fraction φ and probed length scale. We demonstrat
Percolation of the loss of tension in an infinite triangular lattice
We introduce a new class of bootstrap percolation models where the local rules are of a geometric nature as opposed to simple counts of standard bootstrap percolation. Our geometric bootstrap percolation comes from rigidity theory and convex geometry. We outline two percolation models: a Poisson model and a lattice model. Our Poisson model describes how defects - holes is one of the possible inter
Packet Delay in Models of Data Networks
We investigate individual packet delay in a model of data networks with table-free, partial table and full table routing. We present analytical estimation for the average packet delay in a network with small partial routing table. Dependence of the delay on the size of the network and on the size of the partial routing table is examined numerically. Consequences for network scalability are discuss
Molecular Genetic Pathology of Soft Tissue Tumors
Genetic analyses are now routinely used as an adjunct to traditional morphologic and immunohistochemical investigations in the diagnosis of many neoplasms, including soft tissue tumors. Many genetic features are strongly associated with morphologic features, and a rapidly growing subset of mutations promise to shed light on patient outcome. This chapter discusses major molecular pathogenetic featu
LAS17 The productive city
Contemporary urban development has produced a consistent blind spot: the systematic exclusion of productive activities from the city. While recent decades have delivered dense, attractive, and programmatically “mixed” environments, this mix has largely been limited to housing, offices, and consumption. Production, making, repairing, storing, and recycling has been relocated elsewhere.The 2017 Annu
Secure on Paper: Attacking Post-Quantum Cryptography in Practice
The transition to post-quantum cryptography is well underway. Driven by the recognition that Shor's algorithm would render all widely deployed asymmetric cryptosystems insecure in the presence of a sufficiently capable quantum computer, the cryptographic community has spent the past decade designing, evaluating, and standardizing a new generation of public-key primitives. In 2024, ML-KEM became th
