212 research outputs found
Microfabrics and deformation processes in magmatic veins of the Thuringian Forest, Germany
The research area is located in the
Ruhla-Brotterode crystalline complex in the western part of the Thuringian
Forest (Germany), about 20km southsouthwest
of Eisenach. The investigated
outcrops occur at the eastern and western
flanks of the valleys north of the
villages Trusetal and Hohleborn. Deformed
magmatic veins only occur in
the Hohleborn area. Both areas have
relative fresh outcropping rocks, due to
the steep relief, former quarries and
fresh road cuts. According to Obst
& Katzung (2000) several periods with
the formation of magmatic veins with
different chemical composition occur in
the Ruhla-Brotterode crystalline complex.
Presumably older lamprophyric
veins and younger doleritic, syenitporphyric
and granitporphyric veins have
been identified (Obst & Katzung 2000).
Benek & Schust (1988) already pointed
out that some of these magmatic veins
have experienced ductile deformation.
The subject of this work is the occurrence
of deformed magmatic veins
in the Hohleborn area. The contact
to their host rocks, their petrography
and their microfabrics have been investigated
and related to deformation processes,
which led to a better understanding
of their deformation conditions
within the late-to post-variscan development
of the area.conferenc
Changes in behavior and quality of life in German young children during the COVID-19 pandemic—results from the COVID kids bavaria study
Surveillance of acute SARS-CoV-2 infections in elementary schools and daycare facilities in Bavaria, Germany (09/2020–03/2021)
Introduction: Here we report our results of a multi-center, open cohort study ("COVID-Kids-Bavaria") investigating the distribution of acute SARS-CoV-2 infections among children and staff in 99 daycare facilities and 48 elementary schools in Bavaria, Germany. Materials and Methods: Overall, 2,568 children (1,337 school children, 1,231 preschool children) and 1,288 adults (466 teachers, 822 daycare staff) consented to participate in the study and were randomly tested in three consecutive phases (September/October 2020, November/December 2020, March 2021). In total, 7,062 throat swabs were analyzed for SARS-CoV-2 by commercial RT-PCR kits. Results: In phase I, only one daycare worker tested positive. In phase II, SARS-CoV-2 was detected in three daycare workers, two preschool children, and seven school children. In phase III, no sample tested positive. This corresponds to a positive test rate of 0.05% in phase I, 0.4% in phase II and 0% in phase III. Correlation of a positive PCR test result with the local-7-day incidence values showed a strong association of a 7-day-incidence of more than 100/100,000 as compared to <100/100,000 (OR = 10.3 [1.5-438], p < 0.005). After phase III, antibody testing was offered to 713 study participants in elementary schools. A seroprevalence rate of 7.7% (students) and 4.5% (teachers) was determined. Discussion: During the initial waves of the SARS-CoV-2 pandemic, the risk of a positive SARS-CoV-2 result correlated positively with the local 7-day incidence. Hence, the occurrence of SARS-CoV-2 infections were reflected in schools and daycare facilities. An increased risk of SARS-CoV-2 transmission in the setting of daycare and elementary schooling was unlikely
Multidifferential study of identified charged hadron distributions in -tagged jets in proton-proton collisions at 13 TeV
Jet fragmentation functions are measured for the first time in proton-proton
collisions for charged pions, kaons, and protons within jets recoiling against
a boson. The charged-hadron distributions are studied longitudinally and
transversely to the jet direction for jets with transverse momentum 20 GeV and in the pseudorapidity range . The
data sample was collected with the LHCb experiment at a center-of-mass energy
of 13 TeV, corresponding to an integrated luminosity of 1.64 fb. Triple
differential distributions as a function of the hadron longitudinal momentum
fraction, hadron transverse momentum, and jet transverse momentum are also
measured for the first time. This helps constrain transverse-momentum-dependent
fragmentation functions. Differences in the shapes and magnitudes of the
measured distributions for the different hadron species provide insights into
the hadronization process for jets predominantly initiated by light quarks.Comment: All figures and tables, along with machine-readable versions and any
supplementary material and additional information, are available at
https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-013.html (LHCb
public pages
Charakteristika der staatlichen Einbindung von Eliten und Bevölkerung in Ideokratien
"This paper shows that ideocracies, especially communist ideocracies, have a specific pattern of cooptation and incorporation of elites and ordinary citizens, which is different from all other political regime types. Ideocracies dominate society through and through by a net of measures that make the citizens materially dependent on the state, from which the individual citizen cannot escape. The strong concentration of the distribution of goods and positions in the hands of the ideocratic state goes hand in glove with the great power to repress non - co - opted people. However, there are trade - offs in the ideocratic pattern of cooptation. The tendency of ideocracies to infantilize its citizens, may provoke reluctance even among otherwise politically indifferent citizens. Nevertheless, despite the trade - offs, the specific pattern of cooptation and incorporation of citizens and elites might help to explain why communist ideocracies were very durable in comparison to other types of political regimes." (author's abstract
Promoting neuronal regeneration using extracellular vesicles loaded with superparamagnetic iron oxide nanoparticles
A Revised Taxonomy of Steganography Embedding Patterns
Steganography embraces several hiding techniques which spawn across multiple domains. However, the related terminology is not unified among the different domains, such as digital media steganography, text steganography, cyber-physical systems steganography, network steganography (network covert channels), local covert channels, and out-of-band covert channels. To cope with this, a prime attempt has been done in 2015, with the introduction of the so-called hiding patterns, which allow to describe hiding techniques in a more abstract manner. Despite significant enhancements, the
main limitation of such a taxonomy is that it only considers the case of network steganography.
Therefore, this paper reviews both the terminology and the taxonomy of hiding patterns as to make them more general. Specifically, hiding patterns are split into those that describe the embedding and the representation of hidden data within the cover object. As a first research action, we focus on embedding hiding patterns
and we show how they can be applied to multiple domains of steganography instead of being limited to the network scenario.
Additionally, we exemplify representation patterns using network steganography. Our pattern collection is available under https://patterns.ztt.hs-worms.de
A Revised Taxonomy of Steganography Embedding Patterns
Steganography embraces several hiding techniques which spawn across multiple domains. However, the related terminology is not unified among the different domains, such as digital media steganography, text steganography, cyber-physical systems steganography, network steganography (network covert channels), local covert channels, and out-of-band covert channels. To cope with this, a prime attempt has been done in 2015, with the introduction of the so-called hiding patterns, which allow to describe hiding techniques in a more abstract manner. Despite significant enhancements, the
main limitation of such a taxonomy is that it only considers the case of network steganography.
Therefore, this paper reviews both the terminology and the taxonomy of hiding patterns as to make them more general. Specifically, hiding patterns are split into those that describe the embedding and the representation of hidden data within the cover object. As a first research action, we focus on embedding hiding patterns
and we show how they can be applied to multiple domains of steganography instead of being limited to the network scenario.
Additionally, we exemplify representation patterns using network steganography. Our pattern collection is available under https://patterns.ztt.hs-worms.de
Information Hiding Patterns Project
This project is driven by a consortium of several scientists from seven institutions spread over four countries. We aim at unifying the terminology and taxonomy for hiding methods in steganography
Development of a topical ointment of betamethasone dipropionate loaded nanostructured lipid carrier
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