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Collaborative outcomes study on health and functioning during infection times (COH-FIT)
No full textObjective: To identify the COVID-19 impact on well-being/mental health, coping strategies and risk factors in adolescent worldwide. Method: Anonymous online multi-national/language survey in the general population (representative/weighted non-representative samples, 14-17years), measuring change in well-being (WHO-5/range=0-100) and psychopathology (validated composite P-score/range=0-100), WHO-5 2 years. The three most subjectively effective coping strategies were internet use, exercise/walking, and social contacts. Conclusion: Overall, well-being/mental health worsened (small effect sizes) during early stages of COVID-19, especially in vulnerable subpopulations. Identified at-risk groups, association with pandemic-related measures, and coping strategies can inform individual behaviours and global public health strategies
Estimating surface density of Loggerhead Sea turtle (Caretta caretta) in Slovenian sea using Unmanned Aerial Vehicle (UAV)
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Population research of the Yellow-bellied toad (Bombina variegata) and Italian crested newt (Triturus carnifex) in Škocjan Caves Biosphere Park
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Polycyclic geometric realizations of the Gray configuration
No full textThe Gray configuration is a (27_3) configuration which typically is realized as the points and lines of the 3×3×3 integer lattice. It occurs as a member of an infinite family of configurations defined by Bouwer in 1972. Since their discovery, both the Gray configuration and its Levi graph (i.e., its point-line incidence graph) have been the subject of intensive study. Its automorphism group contains cyclic subgroups isomorphic to Z3 and Z9, so it is natural to ask whether the Gray configuration can be realized in the plane with any of the corresponding rotational symmetry. In this paper, we show that there are two distinct polycyclic realizations with Z3 symmetry. In contrast, the only geometric polycyclic realization with straight lines and Z9 symmetry is only a “weak” realization, with extra unwanted incidences (in particular, the realization is actually a (27_4) configuration)
