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ZusammenfassungDigitales Lernen in religiösen Bildungsprozessen befasst sich besonders mit medienethischen Fragestellungen. Sexting und Cybermobbing werden als riskantes Mediennutzungsverhalten von Jugendlichen bewertet. Im Rahmen der schulischen Präventionsarbeit wird daher vor allem die Schuldfrage thematisiert. Die besondere Herausforderung für die Religionspädagogik besteht in der Wahrnehmung der Schamerfahrungen für die Identitätsentwicklung von Mädchen und Jungen in den erweiterten sozialen Räumen der digitalen Kommunikationsmittel. In Anlehnung an die Schamethik von Klaas Huizing und der medienweltorientierten Religionsdidaktik von Manfred Pirner verfolgt eine evangelische Mediennutzungsethik der Schamsensibilisierung (Kristian Fechtner) das Ziel der Kompetenzentwicklung von Mitgefühl und Widerstandsfähigkeit.
Growth corridors have been an instrument of
economic development for decades but have gained new
attention in regional economic development policies in recent years, e.g., in Sub-Saharan Africa or Southeast Asia.
They are seen by policy makers and private businesses as
catalysts of regional economic integration, pushing traditional businesses into increasingly complex international
value chains. However, the outcomes of such development
initiatives are still barely understood. Critics argue that development policies are based on simplified models that are
unable to sufficiently address the complexity of regional
development. Policies on value-chain development, for
example, can lead to conflicts, external dependencies,
land rush, and a polarization of wealth. Growth corridors
often go hand-in-hand with socio-economic transformations and land-use conflicts. This paper first discusses the
theoretically possible desired and undesired regional socio-economic effects of modern corridors. Second, we illustrate the potential and challenges to realize integrative
(or inclusive) development by contrasting three growth
corridors: the SAGCOT growth corridor in Tanzania, the
Walvis Bay-Ndola-Lubumbashi Development Corridor
(WBNLDC) in Namibia, Zambia and Zimbabwe, and the
growth corridors in the Greater Mekong Subregion (GMS)
Der Beitrag behandelt eine Problematik aus dem Bereich der
mittelbaren Täterschaft gem. § 25 I Alt. 2 StGB, die spätestens seit der berühmten Entscheidung des Bundesgerichtshofs im Mauerschützenfall (BGHSt 40, 218) zu den umstrittensten Fragen der deutschen Beteiligungsdogmatik zählt:
die Rechtsfigur der Organisationsherrschaft und ihre prinzipielle Übertragbarkeit auf Wirtschaftsunternehmen. Anliegen des Beitrags ist es, die Entwicklung der Organisationsherrschaft nachzuzeichnen, das kaum mehr überschaubaren
Meinungsspektrum zur Thematik in seinen wesentlichen
Leitlinien zusammenzufassen und so das nötige examensrelevante Wissen für das universitäre Schwerpunktstudium
zu vermitteln.
on-healing wounds continue to be a clinical challenge for patients and medical staff.
These wounds have a heterogeneous etiology, including diabetes and surgical trauma wounds. It is
therefore important to decipher molecular signatures that reflect the macroscopic process of wound
healing. To this end, we collected wound sponge dressings routinely used in vacuum assisted therapy
after surgical trauma to generate wound-derived protein profiles via global mass spectrometry.
We confidently identified 311 proteins in exudates. Among them were expected targets belonging to
the immunoglobulin superfamily, complement, and skin-derived proteins, such as keratins. Next to
several S100 proteins, chaperones, heat shock proteins, and immune modulators, the exudates
presented a number of redox proteins as well as a discrete neutrophil proteomic signature, including
for example cathepsin G, elastase, myeloperoxidase, CD66c, and lipocalin 2. We mapped over 200
post-translational modifications (PTMs; cysteine/methionine oxidation, tyrosine nitration, cysteine
trioxidation) to the proteomic profile, for example, in peroxiredoxin 1. Investigating manually
collected exudates, we confirmed presence of neutrophils and their products, such as microparticles
and fragments containing myeloperoxidase and DNA. These data confirmed known and identified
less known wound proteins and their PTMs, which may serve as resource for future studies on
human wound healing
For the last two decades, heparins have been widely used as anticoagulants. Besides
numerous advantages, up to 5% patients with heparin administration suffer from a major adverse
drug effect known as heparin-induced thrombocytopenia (HIT). This typical HIT can result in deep
vein thrombosis, pulmonary embolism, occlusion of a limb artery, acute myocardial infarct, stroke, and
a systemic reaction or skin necrosis. The basis of HIT may lead to clinical insights. Recent studies using
single-molecule force spectroscopy (SMFS)-based atomic force microscopy revealed detailed binding
mechanisms of the interactions between platelet factor 4 (PF4) and heparins of different lengths in
typical HIT. Especially, SMFS results allowed identifying a new mechanism of the autoimmune HIT
caused by a subset of human-derived antibodies in patients without heparin exposure. The findings
proved that not only heparin but also a subset of antibodies induce thrombocytopenia. In this review,
the role of SMFS in unraveling a major adverse drug effect and insights into molecular mechanisms
inducing thrombocytopenia by both heparins and antibodies will be discussed.
: An enhanced indoleamine 2,3-dioxygenase 1 (IDO1) activity is associated with an increased
mortality risk in sepsis patients. Thus, the preventive inhibition of IDO1 activity may be
a promising strategy to attenuate the severity of septic shock. 1-methyltryptophan (1-MT)
is currently in the interest of research due to its potential inhibitory effects on IDO1 and
immunomodulatory properties. The present study aims to investigate the protective and
immunomodulatory effects of 1-methyltryptophan against endotoxin-induced shock in a porcine
in vivo model. Effects of 1-MT were determined on lipopolysaccharide (LPS)-induced tryptophan
(TRP) degradation, immune response and sickness behaviour. 1-MT increased TRP and its metabolite
kynurenic acid (KYNA) in plasma and tissues, suppressed the LPS-induced maturation of neutrophils
and increased inactivity of the animals. 1-MT did not inhibit the LPS-induced degradation of TRP
to kynurenine (KYN)—a marker for IDO1 activity—although the increase in KYNA indicates that
degradation to one branch of the KYN pathway is facilitated. In conclusion, our findings provide
no evidence for IDO1 inhibition but reveal the side effects of 1-MT that may result from the proven
interference of KYNA and 1-MT with aryl hydrocarbon receptor signalling. These effects should be
considered for therapeutic applications of 1-MT.
The platinum(II) complexes carboplatin (CBDCA), cisplatin (CDDP) and oxaliplatin
(1-OHP) are used as anticancer drugs in a large number of tumour chemotherapy regimens.
Many attempts have been made to combine Pt(II)-based chemotherapy with alternative treatment
strategies. One such alternative anticancer approach is known as photodynamic therapy (PDT),
where a non-toxic photosensitizer (PS) produces oxidative stress via the formation of reactive
oxygen species (ROS) after local illumination of the affected tissue. A very promising PS is
5,10,15,20-tetra(m-hydroxyphenyl)chlorin (mTHPC, Temoporfin), which is approved for the treatment
of head and neck cancer in Europe. In the present study, a combination of mTHPC-mediated PDT
and either CBDCA, CDDP, or 1-OHP was applied to five human cancer cell lines from different
tumour origins. Cytotoxicity was determined by the MTT assay and synergistic effects on cytotoxicity
were evaluated by calculation of Combination Indices (CI). Synergy was identified in some of the
combinations, for example, with 1-OHP in three of the tested cell lines but antagonism was also
observed for a number of combinations in certain cell lines. In cases of synergy, elevated ROS levels
were observed after combination but apoptosis induction was not necessarily increased compared
to a treatment with a single compound. Cell cycle analysis revealed a formation of apoptotic
subG1 populations and S phase as well as G2/M phase arrests after combination. In conclusion,
pre-treatment with mTHPC-PDT has the potential to sensitize some types of tumour cells towards
Pt(II) complexes, in particular 1-OHP but synergy is highly dependent on the type of cancer.
Sphingosine-1-phosphate (S1P) regulates the migration of follicular B cells
(B2 cells) and directs the positioning of Marginal zone B cells (MZ B cells) within the spleen. The
function of S1P signalling in the third B cell lineage, B1 B cells, mainly present in the pleural and
peritoneal cavity, has not yet been determined. Methods: S1P receptor expression was analysed
in peritoneal B cells by real-time polymerase chain reaction (qPCR). The chemotactic response to
S1P was studied in vitro. The role of S1P signalling was further explored in a s1p4
−/− mouse
strain. Results: Peritoneal B cells expressed considerable amounts of the S1P receptors 1 and 4
(S1P1 and S1P4, respectively). S1P1 showed differential expression between the distinct peritoneal B
cell lineages. While B2 cells showed no chemotactic response to S1P, B1 B cells showed a migration
response to S1P. s1p4
−/− mice displayed significant alterations in the composition of peritoneal
B cell populations, as well as a significant reduction of mucosal immunoglobulin A (IgA) in the
gut. Discussion: S1P signalling influences peritoneal B1 B cell migration. S1P4 deficiency alters the
composition of peritoneal B cell populations and reduces secretory IgA levels. These findings suggest
that S1P signalling may be a target to modulate B cell function in inflammatory intestinal pathologies.
Abstract
Identifying materials with an efficient spin-to-charge conversion is crucial for future spintronic applications. In this respect, the spin Hall effect is a central mechanism as it allows for the interconversion of spin and charge currents. Spintronic material research aims at maximizing its efficiency, quantified by the spin Hall angle and the spin-current relaxation length . We develop an all-optical contact-free method with large sample throughput that allows us to extract and . Employing terahertz spectroscopy and an analytical model, magnetic metallic heterostructures involving Pt, W and Cu80Ir20 are characterized in terms of their optical and spintronic properties. The validity of our analytical model is confirmed by the good agreement with literature DC values. For the samples considered here, we find indications that the interface plays a minor role for the spin-current transmission. Our findings establish terahertz emission spectroscopy as a reliable tool complementing the spintronics workbench.