Photovoltaics at multi-terawatt scale: Waiting is not an option.

25% annual PV growth is possible over the next decade.

The six million dollar man.

In this case report, relapse of urticaria after a switch from oma- to mepolizumab successfully led to combination of biologics https://bit.ly/2GykNtI.

Interaction Analysis of Longevity Interventions Using Survival Curves.

A long-standing problem in ageing research is to understand how different factors contributing to longevity should be expected to act in combination under the assumption that they are independent. Standard interaction analysis compares the extension of mean lifespan achieved by a combination of interventions to the prediction under an additive or multiplicative null model, but neither model is fundamentally justified. Moreover, the target of longevity interventions is not mean life span but the entire survival curve. Here we formulate a mathematical approach for predicting the survival curve resulting from a combination of two independent interventions based on the survival curves of the individual treatments, and quantify interaction between interventions as the deviation from this prediction. We test the method on a published data set comprising survival curves for all combinations of four different longevity interventions in Caenorhabditis elegans. We find that interactions are generally weak even when the standard analysis indicates otherwise.

Efficacy of Whole-Lung Lavage in Pulmonary Alveolar Proteinosis: A Multicenter International Study of GELF.

BACKGROUND: New therapies have emerged in the treatment of pulmonary alveolar proteinosis (PAP) and, therefore, there is a real need to evaluate the efficacy of whole-lung lavage (WLL) in this rare disease. OBJECTIVES: The aim of this study was to assess the efficacy of WLL in patients with PAP. METHODS: We included 33 patients from 12 centers, which are members of the French-Speaking Thoracic Endoscopy Group, for analysis. Data collection concerned patients and disease characteristics, pulmonary function tests (PFTs) and technical information on the procedure. RESULTS: The median age of the patients was 44 years (range 13-77). There were 23 (71.9%) patients with respiratory insufficiency at presentation. All patients underwent WLL by general anesthesia and selective lung ventilation, except 1 who underwent awake flexible bronchoscopy. We noted differences in the technique, as 12 (36.36%) patients had percussion during the procedure and only 4 (12.1%) patients underwent 2-lung lavage during 1 anesthesia. A median of 12 L was used to perform WLL (1.0-40 L). Complications occurred in 11 (33.3%) patients, and 18 (56.25%) of them relapsed in a median period of 16.9 months. No significant changes were found in any PFT parameters studied, except for PaO2, which was significantly improved by 6.375 mm Hg (p = 0.0213) after the procedure compared to before. CONCLUSIONS: Although the application of the WLL technique was variable, overall, it significantly improved patients' short-term respiratory condition by improving PaO2. However, a long-term effect needs to be confirmed, as many of our patients relapsed.

Medical studies and Nazi medicine: Nazi medicine as perceived by Austrian medical students.

BACKGROUND: Austrian medical universities have not covered the topic of Nazi medicine in their curricula to any satisfactory degree to date. In the context of medical-ethical education and on-going medical ethics debates, it seems indispensable to be confronted also with the dark chapters of medical history, and especially Nazi medicine. Students should learn to understand controversial discussions, e.g. about euthanasia, in a historical context. The purpose of this study was to investigate whether students had, during their studies, been confronted with Nazi medical crime and whether they considered such a confrontation as important. The survey also focused on extant knowledge about this topic. METHODS: From late 2012 to May 2013, 341 late semester students of the medical universities in Vienna, Graz, and Innsbruck were questioned about the coverage of Nazi medicine during their courses, using multiple choice questionnaires. The data were evaluated using a descriptive-statistical approach. RESULTS: The study has shown a low level of knowledge of students about Nazi medicine in the three universities. Only a third of the students had ever heard about "Aktion T4". About 65% of the participants found it important to be comprehensively informed about Nazi medicine during their studies, e.g. with a view to their future career. On average across the three universities, only 43% of the students had been confronted with this topic. CONCLUSION: The study found a clear wish for more information about Nazi medicine. Universities should, therefore, offer students various opportunities and ways of discussing this issue in the university context.

Multidimensional epistasis and the transitory advantage of sex.

Identifying and quantifying the benefits of sex and recombination is a long-standing problem in evolutionary theory. In particular, contradictory claims have been made about the existence of a benefit of recombination on high dimensional fitness landscapes in the presence of sign epistasis. Here we present a comparative numerical study of sexual and asexual evolutionary dynamics of haploids on tunably rugged model landscapes under strong selection, paying special attention to the temporal development of the evolutionary advantage of recombination and the link between population diversity and the rate of adaptation. We show that the adaptive advantage of recombination on static rugged landscapes is strictly transitory. At early times, an advantage of recombination arises through the possibility to combine individually occurring beneficial mutations, but this effect is reversed at longer times by the much more efficient trapping of recombining populations at local fitness peaks. These findings are explained by means of well-established results for a setup with only two loci. In accordance with the Red Queen hypothesis the transitory advantage can be prolonged indefinitely in fluctuating environments, and it is maximal when the environment fluctuates on the same time scale on which trapping at local optima typically occurs.

Quantitative analysis of pedestrian counterflow in a cellular automaton model.

Pedestrian dynamics exhibits various collective phenomena. Here, we study bidirectional pedestrian flow in a floor field cellular automaton model. Under certain conditions, lane formation is observed. Although it has often been studied qualitatively, e.g., as a test for the realism of a model, there are almost no quantitative results, either empirically or theoretically. As basis for a quantitative analysis, we introduce an order parameter which is adopted from the analysis of colloidal suspensions. This allows us to determine a phase diagram for the system where four different states (free flow, disorder, lanes, gridlock) can be distinguished. Although the number of lanes formed is fluctuating, lanes are characterized by a typical density. It is found that the basic floor field model overestimates the tendency towards a gridlock compared to experimental bounds. Therefore, an anticipation mechanism is introduced which reduces the jamming probability.