Purpose Short-term rentals are mainly of small flats, which are offered to tourists. Currently, the providers of short-term rentals, in particular Airbnb (ABB), are being criticized in several German cities, on the grounds that shares of residential flats are being removed from the housing market, due to illegitimate misuse as tourist accommodation. Thus, the conventional urban housing markets are contending with a decline in housing supply and increasing rents. This paper aims to support these findings empirically. Design/methodology/approach The paper opted first for a spatial analysis with ArcGIS for ABB in Berlin. Second, different online data requests of periods of up to two months were used to analyze the extent of misuse with regard to the Zweckentfremdungsverbot (misuse prohibition law). Third, analysis of variance was used to analyze rental growth on the ABB markets. The data were collected in different approaches from the website of airbnb.com. Findings The paper provides evidence that 5,555 residential flats are presently being misused by ABB (0.30 per cent of the total housing stock in Berlin) and that many providers of entire flats have more than one offer simultaneously. Moreover, the paper provides the first entire-market overview of ABB in Berlin. It is evident that the ABB market is mainly located centrally and that only a few neighborhoods have large ABB markets. Rental growth is higher in the ABB markets which have a significant share of misused flats, than in the ABB markets which have insignificant shares of misused flats. Originality/value To the authors’ best knowledge, the paper provides the first empirical approach regarding misuse through short-term rentals on a housing market with an innovative design and first-hand data.

No abstract

Background: Skin reaction to spaceflight has not really been studied yet, although the skin has a very important barrier function to protect the body and can contribute to a more general understanding of physiology. It is proposed here to make a more thorough investigation of the skin during long-term spaceflight, using noninvasive techniques. Aims: The aim of the present Skin-B study is to investigate the kinetics and range of possible skin modifications during long-duration spaceflights and their recovery. Methods: In order to investigate the effect on skin physiological parameters during spaceflight, measurements were carried out on 6 astronauts with respect to skin hydration, transepidermal water loss/barrier function, and surface evaluation of the living skin in orbit. Additional measured parameters on the ground were skin elasticity, skin density and thickness, as well as microcirculation. Results: Data from the Skin-B subjects (n = 6) contradict the results obtained in the previous pilot study SkinCare (n = 1 subject). In the present study, no deterioration of the skin was found but rather an improvement in skin hydration and skin barrier function, and no changes or improvement in the appearance of the skin surface. Furthermore, the skin density and skin thickness as well as skin elasticity values were unchanged from pre-flight values. Conclusion: In conclusion, we found that spaceflight under present conditions has no negative impact on skin physiological parameters.

No abstract

Objective:The aims of the current study were to evaluate outcomes and patient satisfaction in cases of uterine prolapse treated with vaginal mesh, while preserving the uterus.Materials and Methods:This is a retrospective cohort study that included all patients operated for prolapse repair with trocar-less vaginal mesh while preserving the uterus between October 2010 and March 2013. Data included: patients pre-and post-operative symptoms, POP-Q and operative complications. Success was defined as prolapse < than stage 2. A telephone survey questionnaire was used to evaluate patient's satisfaction.Results:Sixty-six patients with pelvic organ prolapse stage 3, including uterine pro-lapse of at least stage 2 (mean point C at+1.4 (range+8-(-1)) were included. Mean follow-up was 22 months. Success rate of the vaginal mesh procedure aimed to repair uterine prolapse was 92% (61/66), with mean point C at −6.7 (range (-1) - (-9)). No major intra-or post-operative complication occurred. A telephone survey questionnaire was conducted post-operatively 28 months on average. Ninety-eight percent of women were satisfied with the decision to preserve their uterus. Eighteen patients (34%) received prior consultation elsewhere for hysterectomy due to their prolapse, and decided to have the operation at our center in order to preserve the uterus.Conclusions:Uterine preservation with vaginal mesh was found to be a safe and effective treatment, even in cases with advanced uterine prolapse. Most patients prefer to keep their uterus. Uterus preservation options should be discussed with every patient before surgery for pelvic organ prolapse.