Sociologie vědy a sociologická metateorie

Studie je věnována roz- manitým sociologizujícím, a později přímo i sociologickým způsobům, kterými v minulosti byla a dodnes je věda uchopována. Do sociologie se věda jako výzkumný předmět dostává spolu s osvícenskou ideou pokroku, na kterou v první polovině 19. století navazuje Auguste Comte. Teprve sociologie 20. století se však zbavila „historicismu", kterým byla sociologie nejen Comtova, ale samozřejmě i Marxova určována. Od 30. let minulého století se pak věda stává zvláštním sociologickým tématem, které bude s postupujícím časem nabývat na síle. V samostatné části se pak prof. Petrusek věnuje fenoménem zpochybňování vědy, který spojuje s proměnami samotných našich společností. Svoji studii uzavírá zamyšlením se nad sociologickou metateorií

Tuning the Performance of a Computational Persistent Homology Package

In recent years, persistent homology has become an attractive method for data analysis. It captures topological features, such as connected components, holes, and voids from point cloud data and summarizes the way in which these features appear and disappear in a filtration sequence. In this project, we focus on improving the performanceof Eirene, a computational package for persistent homology. Eirene is a 5000-line open-source software library implemented in the dynamic programming language Julia. We use the Julia profiling tools to identify performance bottlenecks and develop novel methods to manage them, including the parallelization of some time-consuming functions on multicore/manycore hardware. Empirical results show that performance can be greatly improved

Dialoguing from a Fixed Point: How Aristotle and Pope Francis Illuminate the Promise — and Limits — of Inclusion in Catholic Higher Education

This article examines the meaning of the word inclusion as it relates to Catholic identity in higher education. Noting the widespread presence of this value in the mission statements of Catholic colleges, the article draws on insights from Aristotelian logic and Pope Francis’s theology of encounter to argue that inclusion can only be defined as a subordinate value to the value of establishing and maintaining a fixed institutional identity that is both uniquely Catholic and non-negotiable. Distinguishing between the concepts of procedural inclusion and substantive inclusion, the article contends that Catholic colleges have good reason to embrace inclusion so long as they recognize that, from a philosophical and theological perspective, exclusion is the condition for the possibility of creating a welcoming academic community. The article concludes by demonstrating how this insight applies to two institutional expression of Catholic identity, one from DePaul University in Chicago and the other from Benedictine College in Kansas

Identifying hybridizing taxa within the Daphnia longispina species complex: a comparison of genetic methods and phenotypic approaches

Daphnia galeata Sars, D. longispina O. F. Muller and D. cucullata Sars (Crustacea: Cladocera) are closely related species which often produce interspecific hybrids in natural populations. Several marker systems are available for taxon determination in this hybridizing complex, but their performance and reliability has not been systematically assessed. We compared results from identifications by three molecular methods. More than 1,200 individuals from 10 localities in the Czech Republic were identified as parental species or hybrids by allozyme electrophoresis and the analysis of the restriction fragment length polymorphism of the internal transcribed spacer (ITS-RFLP); over 440 of them were additionally analyzed and identified by 12 microsatellite loci. Identification by microsatellite markers corresponded well with allozyme analyses. However, consistent discrepancies between ITS-RFLP and other markers were observed in two out of 10 studied localities. Although some marker discrepancies may have been caused by occasional recent introgression, consistent deviations between ITS-RFLP and other markers suggest a long-term maintenance of introgressed alleles. These results warn against its use as a sole identification method in field studies. Additionally, we quantitatively evaluated the discriminatory power of geometric morphometric (elliptic Fourier) analysis of body shapes based on photos of over 1,300 individuals pre-classified by allozyme markers. Furthermore, a randomly selected subset of 240 individuals was independently determined from photos by several experts. Despite a tendency for morphological divergence among parental Daphnia species, some taxa (especially D. galeata, D. longispina, and their hybrids) substantially overlapped in their body shapes. This was reflected in different determination success for particular species and hybrids in discriminant analysis based on shape data as well as from photograph