Erythropoietin prevents lymphoid apoptosis but has no effect on survival in experimental sepsis

BACKGROUND: Lymphoid apoptosis in sepsis is associated with poor outcome, and prevention of apoptosis frequently improves survival in experimental models of sepsis. Recently, erythropoietin (EPO) was shown to protect against lipopolysaccharide (LPS)-induced mortality. As cecal ligation and puncture (CLP) is a clinically more relevant model of sepsis, we evaluated the effect of EPO on CLP-induced lymphoid tissue apoptosis and mortality

Managing Tensions in Corporate Sustainability Through a Practical Wisdom Lens

Previous research has underlined the significance of practical wisdom pertaining to corporate sustainability (CS). Recent studies, however, have identified managing opposing but interlocked tensions related to environmental, social, and economic aspects as one of the most crucial future challenges in CS. Therefore, we apply the established link between wisdom and sustainability to the pressing topic of managing tensions in CS. We commence with a literature overview of tensions in sustainability management, which manifests our basic work assumption concerning the need for practical wisdom in CS. We then discuss the threefold, mutual interconnectedness between practical wisdom and tension management in CS, which we illustrate in a conceptual model. Thereafter, we develop a set of propositions on how a practical wisdom approach influences CS in practice and how it differs from a business-case approach. In recognition of the conceptual character of our paper, we conclude by outlining potential practical applications and theoretical implications of the model and of the propositions. Limitations and avenues for further research are discussed

Momentum transfer from the DART mission kinetic impact on asteroid dimorphos

The NASA Double Asteroid Redirection Test (DART) mission performed a kinetic impact on asteroid Dimorphos, the satellite of the binary asteroid (65803) Didymos, at 23:14 UTC on September 26, 2022 as a planetary defense test1. DART was the first hypervelocity impact experiment on an asteroid at size and velocity scales relevant to planetary defense, intended to validate kinetic impact as a means of asteroid deflection. Here we report the first determination of the momentum transferred to an asteroid by kinetic impact. Based on the change in the binary orbit period2, we find an instantaneous reduction in Dimorphos's along-track orbital velocity component of 2.70 ± 0.10 mm s-1, indicating enhanced momentum transfer due to recoil from ejecta streams produced by the impact3,4. For a Dimorphos bulk density range of 1,500 to 3,300 kg m-3, we find that the expected value of the momentum enhancement factor, [Formula: see text], ranges between 2.2 and 4.9, depending on the mass of Dimorphos. If Dimorphos and Didymos are assumed to have equal densities of 2,400 kg m-3, [Formula: see text]. These [Formula: see text] values indicate that significantly more momentum was transferred to Dimorphos from the escaping impact ejecta than was incident with DART. Therefore, the DART kinetic impact was highly effective in deflecting the asteroid Dimorphos