The challenge of policy coordination for sustainable sociotechnical transitions: the case of the zero-carbon homes agenda in England

Emerging in recent research on sociotechnical transitions towards a low-carbon economy is the question of the extent to which such transitions require centralised, intentional coordination by government. Drawing from Hayek's conceptualisation of coordination, I evaluate the effectiveness of policy for low-carbon and zero-carbon homes in England. A detailed analysis is presented of how policy makers address complex choices and trade-offs as well as significant uncertainty. Particular attention is given to those policy decisions which are widely agreed by stakeholders to cause distortive effects. The focus here on the impacts of policy definition and delivery in terms of multiple evaluative criteria can complement and enrich the more process-orientated cross-sector and multilevel analyses that predominate in existing research on policy coordination. Furthermore, the coordination problems identified yield further insights into the actual and potential effectiveness of policy processes in shaping complex sociotechnical transitions

Hubble Space Telescope Transmission Spectroscopy of the Exoplanet HD 189733b: High-altitude atmospheric haze in the optical and near-UV with STIS

We present Hubble Space Telescope optical and near-ultraviolet transmission spectra of the transiting hot-Jupiter HD189733b, taken with the repaired Space Telescope Imaging Spectrograph (STIS) instrument. The resulting spectra cover the range 2900-5700 Ang and reach per-exposure signal-to-noise levels greater than 11,000 within a 500 Ang bandwidth. We used time series spectra obtained during two transit events to determine the wavelength dependance of the planetary radius and measure the exoplanet's atmospheric transmission spectrum for the first time over this wavelength range. Our measurements, in conjunction with existing HST spectra, now provide a broadband transmission spectrum covering the full optical regime. The STIS data also shows unambiguous evidence of a large occulted stellar spot during one of our transit events, which we use to place constraints on the characteristics of the K dwarf's stellar spots, estimating spot temperatures around Teff~4250 K. With contemporaneous ground-based photometric monitoring of the stellar variability, we also measure the correlation between the stellar activity level and transit-measured planet-to-star radius contrast, which is in good agreement with predictions. We find a planetary transmission spectrum in good agreement with that of Rayleigh scattering from a high-altitude atmospheric haze as previously found from HST ACS camera. The high-altitude haze is now found to cover the entire optical regime and is well characterised by Rayleigh scattering. These findings suggest that haze may be a globally dominant atmospheric feature of the planet which would result in a high optical albedo at shorter optical wavelengths.Comment: 14 pages, 14 figures, 4 tables, accepted to MNRAS, revised version has minor change

The Failure of ECB Monetary Policy from a Mises-Hayek Perspective

The paper analyses the common European monetary policy based on a Mises-Hayek overinvestment framework, which is combined with the theory of optimum currency areas. It shows how since the turn of the millennium a too expansionary monetary policy contributed to unsustainable overinvestment booms in the periphery of the European Monetary Union, and more recently in Germany, dependent on the national fiscal policy stances. It is argued that the ECB´s ultra-loose monetary policy as a crisis therapy puts a drag on long-term growth by conserving distorted economic structures. To preserve political stability a timely exit from the ultra-expansionary monetary policy is postulated

A Reappraisal of Lymphadenectomy in Common Gynecological Cancers

Objectives: Lymph node dissection (LND) in gynecological malignancies has always been a cornerstone in the diagnosis of metastasis, it is also considered an important prognostic factor, and a reliable guide to management strategies. However, its incidence of complications, namely lymphedema, vascular injuries and other lesions, has led to a reconsideration of its efficacy and a comparison of the role of systematic vs. sentinel lymph node (SLN) dissection. Mechanism: Review of the literature using keywords such as “lymph nodes”, “sentinel lymph nodes”, “morbidity and mortality”, “gynecological cancers”, “endometrial cancer”, “ovarian cancer”, and “cervical cancer”. Findings in Brief: In the case of endometrial cancer, several studies have investigated the efficacy of SLN compared with systematic LND. Most of the results demonstrated the efficacy of SLN dissection in endometrial cancer, with the added benefit of lower morbidity. In patients with ovarian cancer, the mainstay of treatment is debulking with optimal cytoreductive surgery. Recent studies have compared systematic lymphadenectomy to non-lymphadenectomy, with an additional advantage in the cases of lymphadenectomy. However, since its publication, the lymphadenectomy in ovarian cancers (LIONS) trial, has revolutionized the standard of care for patients with advanced ovarian cancer and has called into question the increased morbidity and mortality in systematic lymphadenectomy. In cervical cancers, lymph node status is considered to be the most important prognostic factor. In this case, limiting lymphadenectomy to the borders of the inferior mesenteric artery seems promising, and studies are currently being carried out to investigate the feasibility of SLN dissection instead of systematic lymph node dissection. Conclusions: SLN dissection is associated with lower morbidity and mortality, and has been shown to be superior to systematic lymphadenectomy in several studies. However, more research and specific guidelines are needed to better select either one or the other method in the management of gynecological cancers. Copyright: © 2023 The Author(s)