TY - JOUR A1 - Knapmeyer-Endrun, Brigitte A1 - Golombek, Matthew P. A1 - Ohrnberger, Matthias T1 - Rayleigh Wave Ellipticity Modeling and Inversion for Shallow Structure at the Proposed InSight Landing Site in Elysium Planitia, Mars JF - Space science reviews N2 - The SEIS (Seismic Experiment for Interior Structure) instrument onboard the InSight mission will be the first seismometer directly deployed on the surface of Mars. From studies on the Earth and the Moon, it is well known that site amplification in low-velocity sediments on top of more competent rocks has a strong influence on seismic signals, but can also be used to constrain the subsurface structure. Here we simulate ambient vibration wavefields in a model of the shallow sub-surface at the InSight landing site in Elysium Planitia and demonstrate how the high-frequency Rayleigh wave ellipticity can be extracted from these data and inverted for shallow structure. We find that, depending on model parameters, higher mode ellipticity information can be extracted from single-station data, which significantly reduces uncertainties in inversion. Though the data are most sensitive to properties of the upper-most layer and show a strong trade-off between layer depth and velocity, it is possible to estimate the velocity and thickness of the sub-regolith layer by using reasonable constraints on regolith properties. Model parameters are best constrained if either higher mode data can be used or additional constraints on regolith properties from seismic analysis of the hammer strokes of InSight’s heat flow probe HP3 are available. In addition, the Rayleigh wave ellipticity can distinguish between models with a constant regolith velocity and models with a velocity increase in the regolith, information which is difficult to obtain otherwise. KW - Mars KW - Interior KW - Seismology KW - Regoliths Y1 - 2017 U6 - https://doi.org/10.1007/s11214-016-0300-1 SN - 0038-6308 SN - 1572-9672 VL - 211 SP - 339 EP - 382 PB - Springer CY - Dordrecht ER - TY - JOUR A1 - Martinez-Nunez, Silvia A1 - Kretschmar, Peter A1 - Bozzo, Enrico A1 - Oskinova, Lida A1 - Puls, Joachim A1 - Sidoli, Lara A1 - Sundqvist, Jon Olof A1 - Blay, Pere A1 - Falanga, Maurizio A1 - Furst, Felix A1 - Gimenez-Garcia, Angel A1 - Kreykenbohm, Ingo A1 - Kuehnel, Matthias A1 - Sander, Andreas Alexander Christoph A1 - Torrejon, Jose Miguel A1 - Wilms, Joern T1 - Towards a Unified View of Inhomogeneous Stellar Winds in Isolated Supergiant Stars and Supergiant High Mass X-Ray Binaries JF - Space science reviews N2 - Massive stars, at least similar to 10 times more massive than the Sun, have two key properties that make them the main drivers of evolution of star clusters, galaxies, and the Universe as a whole. On the one hand, the outer layers of massive stars are so hot that they produce most of the ionizing ultraviolet radiation of galaxies; in fact, the first massive stars helped to re-ionize the Universe after its Dark Ages. Another important property of massive stars are the strong stellar winds and outflows they produce. This mass loss, and finally the explosion of a massive star as a supernova or a gamma-ray burst, provide a significant input of mechanical and radiative energy into the interstellar space. These two properties together make massive stars one of the most important cosmic engines: they trigger the star formation and enrich the interstellar medium with heavy elements, that ultimately leads to formation of Earth-like rocky planets and the development of complex life. The study of massive star winds is thus a truly multidisciplinary field and has a wide impact on different areas of astronomy. In recent years observational and theoretical evidences have been growing that these winds are not smooth and homogeneous as previously assumed, but rather populated by dense "clumps". The presence of these structures dramatically affects the mass loss rates derived from the study of stellar winds. Clump properties in isolated stars are nowadays inferred mostly through indirect methods (i.e., spectroscopic observations of line profiles in various wavelength regimes, and their analysis based on tailored, inhomogeneous wind models). The limited characterization of the clump physical properties (mass, size) obtained so far have led to large uncertainties in the mass loss rates from massive stars. Such uncertainties limit our understanding of the role of massive star winds in galactic and cosmic evolution. Supergiant high mass X-ray binaries (SgXBs) are among the brightest X-ray sources in the sky. A large number of them consist of a neutron star accreting from the wind of a massive companion and producing a powerful X-ray source. The characteristics of the stellar wind together with the complex interactions between the compact object and the donor star determine the observed X-ray output from all these systems. Consequently, the use of SgXBs for studies of massive stars is only possible when the physics of the stellar winds, the compact objects, and accretion mechanisms are combined together and confronted with observations. This detailed review summarises the current knowledge on the theory and observations of winds from massive stars, as well as on observations and accretion processes in wind-fed high mass X-ray binaries. The aim is to combine in the near future all available theoretical diagnostics and observational measurements to achieve a unified picture of massive star winds in isolated objects and in binary systems. KW - Massive stars KW - Stellar outflows KW - X-ray binary KW - Wind-fed systems KW - Accretion processes KW - SgXBs KW - SFXTs Y1 - 2017 U6 - https://doi.org/10.1007/s11214-017-0340-1 SN - 0038-6308 SN - 1572-9672 VL - 212 SP - 59 EP - 150 PB - Springer CY - Dordrecht ER - TY - JOUR A1 - Frenken, Thijs A1 - Alacid, Elisabet A1 - Berger, Stella A. A1 - Bourne, Elizabeth Charlotte A1 - Gerphagnon, Melanie A1 - Grossart, Hans-Peter A1 - Gsell, Alena S. A1 - Ibelings, Bas W. A1 - Kagami, Maiko A1 - Kupper, Frithjof C. A1 - Letcher, Peter M. A1 - Loyau, Adeline A1 - Miki, Takeshi A1 - Nejstgaard, Jens C. A1 - Rasconi, Serena A1 - Rene, Albert A1 - Rohrlack, Thomas A1 - Rojas-Jimenez, Keilor A1 - Schmeller, Dirk S. A1 - Scholz, Bettina A1 - Seto, Kensuke A1 - Sime-Ngando, Telesphore A1 - Sukenik, Assaf A1 - Van de Waal, Dedmer B. A1 - Van den Wyngaert, Silke A1 - Van Donk, Ellen A1 - Wolinska, Justyna A1 - Wurzbacher, Christian A1 - Agha, Ramsy T1 - Integrating chytrid fungal parasites into plankton ecology: research gaps and needs JF - Environmental microbiology N2 - Chytridiomycota, often referred to as chytrids, can be virulent parasites with the potential to inflict mass mortalities on hosts, causing e.g. changes in phytoplankton size distributions and succession, and the delay or suppression of bloom events. Molecular environmental surveys have revealed an unexpectedly large diversity of chytrids across a wide range of aquatic ecosystems worldwide. As a result, scientific interest towards fungal parasites of phytoplankton has been gaining momentum in the past few years. Yet, we still know little about the ecology of chytrids, their life cycles, phylogeny, host specificity and range. Information on the contribution of chytrids to trophic interactions, as well as co-evolutionary feedbacks of fungal parasitism on host populations is also limited. This paper synthesizes ideas stressing the multifaceted biological relevance of phytoplankton chytridiomycosis, resulting from discussions among an international team of chytrid researchers. It presents our view on the most pressing research needs for promoting the integration of chytrid fungi into aquatic ecology. Y1 - 2017 U6 - https://doi.org/10.1111/1462-2920.13827 SN - 1462-2912 SN - 1462-2920 VL - 19 SP - 3802 EP - 3822 PB - Wiley CY - Hoboken ER - TY - JOUR A1 - van der Lubbe, H. J. L. A1 - Krause-Nehring, J. A1 - Junginger, A. A1 - Garcin, Yannick A1 - Joordens, J. C. A. A1 - Davies, G. R. A1 - Beck, C. A1 - Feibel, C. S. A1 - Johnson, T. C. A1 - Vonhof, H. B. T1 - Gradual or abrupt? Changes in water source of Lake Turkana (Kenya) during the African Humid Period inferred from Sr isotope ratios JF - Quaternary science reviews : the international multidisciplinary research and review journal Y1 - 2017 U6 - https://doi.org/10.1016/j.quascirev.2017.08.010 SN - 0277-3791 VL - 174 SP - 1 EP - 12 PB - Elsevier CY - Oxford ER - TY - JOUR A1 - Lacroix, Andre A1 - Hortobagyi, Tibor A1 - Beurskens, Rainer A1 - Granacher, Urs T1 - Effects of Supervised vs. Unsupervised Training Programs on Balance and Muscle Strength in Older Adults: A Systematic Review and Meta-Analysis JF - Sports medicine N2 - Objectives The objective of this systematic review and meta-analysis was to quantify the effectiveness of supervised vs. unsupervised balance and/or resistance training programs on measures of balance and muscle strength/ power in healthy older adults. In addition, the impact of supervision on training-induced adaptive processes was evaluated in the form of dose-response relationships by analyzing randomized controlled trials that compared supervised with unsupervised trials. Data Sources A computerized systematic literature search was performed in the electronic databases PubMed, Web of Science, and SportDiscus to detect articles examining the role of supervision in balance and/or resistance training in older adults. Study Eligibility Criteria The initially identified 6041 articles were systematically screened. Studies were included if they examined balance and/or resistance training in adults aged >= 65 years with no relevant diseases and registered at least one behavioral balance (e.g., time during single leg stance) and/or muscle strength/ power outcome (e.g., time for 5-Times-Chair-Rise-Test). Finally, 11 studies were eligible for inclusion in this meta-analysis. Study Appraisal Weighted mean standardized mean differences between subjects (SMDbs) of supervised vs. unsupervised balance/resistance training studies were calculated. The included studies were coded for the following variables: number of participants, sex, age, number and type of interventions, type of balance/strength tests, and change (%) from pre- to post-intervention values. Additionally, we coded training according to the following modalities: period, frequency, volume, modalities of supervision (i.e., number of supervised/unsupervised sessions within the supervised or unsupervised training groups, respectively). Heterogeneity was computed using I 2 and chi(2) statistics. The methodological quality of the included studies was evaluated using the Physiotherapy Evidence Database scale. Results Our analyses revealed that in older adults, supervised balance/resistance training was superior compared with unsupervised balance/resistance training in improving measures of static steady-state balance (mean SMDbs = 0.28, p = 0.39), dynamic steady-state balance (mean SMDbs = 0.35, p = 0.02), proactive balance (mean SMDbs = 0.24, p = 0.05), balance test batteries (mean SMDbs = 0.53, p = 0.02), and measures of muscle strength/power (mean SMDbs = 0.51, p = 0.04). Regarding the examined dose-response relationships, our analyses showed that a number of 10-29 additional supervised sessions in the supervised training groups compared with the unsupervised training groups resulted in the largest effects for static steady-state balance (mean SMDbs = 0.35), dynamic steady-state balance (mean SMDbs = 0.37), and muscle strength/power (mean SMDbs = 1.12). Further, >= 30 additional supervised sessions in the supervised training groups were needed to produce the largest effects on proactive balance (mean SMDbs = 0.30) and balance test batteries (mean SMDbs = 0.77). Effects in favor of supervised programs were larger for studies that did not include any supervised sessions in their unsupervised programs (mean SMDbs: 0.28-1.24) compared with studies that implemented a few supervised sessions in their unsupervised programs (e.g., three supervised sessions throughout the entire intervention program; SMDbs: -0.06 to 0.41). Limitations The present findings have to be interpreted with caution because of the low number of eligible studies and the moderate methodological quality of the included studies, which is indicated by a median Physiotherapy Evidence Database scale score of 5. Furthermore, we indirectly compared dose-response relationships across studies and not from single controlled studies. Conclusions Our analyses suggest that supervised balance and/or resistance training improved measures of balance and muscle strength/power to a greater extent than unsupervised programs in older adults. Owing to the small number of available studies, we were unable to establish a clear dose-response relationship with regard to the impact of supervision. However, the positive effects of supervised training are particularly prominent when compared with completely unsupervised training programs. It is therefore recommended to include supervised sessions (i.e., two out of three sessions/week) in balance/resistance training programs to effectively improve balance and muscle strength/power in older adults. Y1 - 2017 U6 - https://doi.org/10.1007/s40279-017-0747-6 SN - 0112-1642 SN - 1179-2035 VL - 47 SP - 2341 EP - 2361 PB - Springer CY - Northcote ER - TY - JOUR A1 - Sadovnichii, V. A. A1 - Panasyuk, M. I. A1 - Amelyushkin, A. M. A1 - Bogomolov, V. V. A1 - Benghin, V. V. A1 - Garipov, G. K. A1 - Kalegaev, V. V. A1 - Klimov, P. A. A1 - Khrenov, B. A. A1 - Petrov, V. L. A1 - Sharakin, S. A. A1 - Shirokov, A. V. A1 - Svertilov, S. I. A1 - Zotov, M. Y. A1 - Yashin, I. V. A1 - Gorbovskoy, E. S. A1 - Lipunov, V. M. A1 - Park, I. H. A1 - Lee, J. A1 - Jeong, S. A1 - Kim, M. B. A1 - Jeong, H. M. A1 - Shprits, Yuri A1 - Angelopoulos, V. A1 - Russell, C. T. A1 - Runov, A. A1 - Turner, D. A1 - Strangeway, R. J. A1 - Caron, R. A1 - Biktemerova, S. A1 - Grinyuk, A. A1 - Lavrova, M. A1 - Tkachev, L. A1 - Tkachenko, A. A1 - Martinez, O. A1 - Salazar, H. A1 - Ponce, E. T1 - "Lomonosov" Satellite-Space Observatory to Study Extreme Phenomena in Space JF - Space science reviews N2 - The "Lomonosov" space project is lead by Lomonosov Moscow State University in collaboration with the following key partners: Joint Institute for Nuclear Research, Russia, University of California, Los Angeles (USA), University of Pueblo (Mexico), Sungkyunkwan University (Republic of Korea) and with Russian space industry organi-zations to study some of extreme phenomena in space related to astrophysics, astroparticle physics, space physics, and space biology. The primary goals of this experiment are to study: -Ultra-high energy cosmic rays (UHECR) in the energy range of the Greizen-ZatsepinKuzmin (GZK) cutoff; -Ultraviolet (UV) transient luminous events in the upper atmosphere; -Multi-wavelength study of gamma-ray bursts in visible, UV, gamma, and X-rays; -Energetic trapped and precipitated radiation (electrons and protons) at low-Earth orbit (LEO) in connection with global geomagnetic disturbances; -Multicomponent radiation doses along the orbit of spacecraft under different geomagnetic conditions and testing of space segments of optical observations of space-debris and other space objects; -Instrumental vestibular-sensor conflict of zero-gravity phenomena during space flight. This paper is directed towards the general description of both scientific goals of the project and scientific equipment on board the satellite. The following papers of this issue are devoted to detailed descriptions of scientific instruments. KW - Gamma-ray bursts KW - Ultra-high energy cosmic rays KW - Radiation belts KW - Space mission Y1 - 2017 U6 - https://doi.org/10.1007/s11214-017-0425-x SN - 0038-6308 SN - 1572-9672 VL - 212 SP - 1705 EP - 1738 PB - Springer CY - Dordrecht ER - TY - JOUR A1 - Schuster, Isabell A1 - Krahé, Barbara T1 - The prevalence of sexual aggression in Turkey: A systematic review JF - Aggression and violent behavior : a review journa N2 - Although sexual aggression is recognized as a serious problem worldwide, evidence on the prevalence and impact of sexual aggression is based predominantly on studies from Western countries with a Christian or non-religious majority. Little evidence is available from non-Western countries, especially from Muslim societies. The purpose of the present article was to provide a first systematic review of the studies examining the prevalence of sexual aggression in Turkey, including both victimization and perpetration reports from women and men. Additionally, differences in prevalence rates depending on relationship constellations and characteristics of victims and perpetrators were reviewed. By a two-stage literature search, 56 studies were identified for inclusion. All studies examined sexual victimization of women, only four studies included sexual victimization of men. Data on sexual aggression perpetration were extremely limited, with only two studies providing prevalence rates. Prevalence rates of sexual victimization were found to vary greatly, which may be attributed to a lack of methodological and conceptual consistency across studies. Likewise, no consistent picture was revealed for victims' or perpetrators' sociodemographic or situational characteristics associated with differences in prevalence rates. We discuss reasons for the variability in prevalence rates and outline recommendations for future research. KW - Sexual aggression KW - Victimization KW - Perpetration KW - Prevalence KW - Turkey KW - Review Y1 - 2017 U6 - https://doi.org/10.1016/j.avb.2017.05.003 SN - 1359-1789 SN - 1873-6335 VL - 37 SP - 102 EP - 114 PB - Elsevier CY - Oxford ER - TY - JOUR A1 - Schinkoeth, Michaela A1 - Antoniewicz, Franziska T1 - Automatic Evaluations and Exercising: Systematic Review and Implications for Future Research JF - Frontiers in psychology N2 - The general purpose of this systematic review was to summarize, structure and evaluate the findings on automatic evaluations of exercising. Studies were eligible for inclusion if they reported measuring automatic evaluations of exercising with an implicit measure and assessed some kind of exercise variable. Fourteen nonexperimental and six experimental studies (out of a total N = 1,928) were identified and rated by two independent reviewers. The main study characteristics were extracted and the grade of evidence for each study evaluated. First, results revealed a large heterogeneity in the applied measures to assess automatic evaluations of exercising and the exercise variables. Generally, small to large-sized significant relations between automatic evaluations of exercising and exercise variables were identified in the vast majority of studies. The review offers a systematization of the various examined exercise variables and prompts to differentiate more carefully between actually observed exercise behavior (proximal exercise indicator) and associated physiological or psychological variables (distal exercise indicator). Second, a lack of transparent reported reflections on the differing theoretical basis leading to the use of specific implicit measures was observed. Implicit measures should be applied purposefully, taking into consideration the individual advantages or disadvantages of the measures. Third, 12 studies were rated as providing first-grade evidence (lowest grade of evidence), five represent second-grade and three were rated as third-grade evidence. There is a dramatic lack of experimental studies, which are essential for illustrating the cause-effect relation between automatic evaluations of exercising and exercise and investigating under which conditions automatic evaluations of exercising influence behavior. Conclusions about the necessity of exercise interventions targeted at the alteration of automatic evaluations of exercising should therefore not be drawn too hastily. KW - automatic evaluation KW - exercise KW - associative KW - dual-process KW - implicitattitude KW - affective Y1 - 2017 U6 - https://doi.org/10.3389/fpsyg.2017.02103 SN - 1664-1078 VL - 8 PB - Frontiers Research Foundation CY - Lausanne ER - TY - JOUR A1 - Dolcos, Florin A1 - Katsumi, Yuta A1 - Weymar, Mathias A1 - Moore, Matthew A1 - Tsukiura, Takashi A1 - Dolcos, Sanda T1 - Emerging Directions in Emotional Episodic Memory JF - Frontiers in psychology N2 - Building upon the existing literature on emotional memory, the present review examines emerging evidence from brain imaging investigations regarding four research directions: (1) Social Emotional Memory, (2) The Role of Emotion Regulation in the Impact of Emotion on Memory, (3) The Impact of Emotion on Associative or Relational Memory, and (4) The Role of Individual Differences in Emotional Memory. Across these four domains, available evidence demonstrates that emotion-and memory-related medial temporal lobe brain regions (amygdala and hippocampus, respectively), together with prefrontal cortical regions, play a pivotal role during both encoding and retrieval of emotional episodic memories. This evidence sheds light on the neural mechanisms of emotional memories in healthy functioning, and has important implications for understanding clinical conditions that are associated with negative affective biases in encoding and retrieving emotional memories. KW - emotion-cognition interactions KW - social cognition KW - emotion control KW - associative memory KW - individual differences (personality, sex, age) KW - anxiety KW - depression KW - PTSD Y1 - 2017 U6 - https://doi.org/10.3389/fpsyg.2017.01867 SN - 1664-1078 VL - 8 SP - R1277 EP - R1280 PB - Frontiers Research Foundation CY - Lausanne ER - TY - JOUR A1 - Kappel, Christian A1 - Cuong Nguyen Huu, A1 - Lenhard, Michael T1 - A short story gets longer: recent insights into the molecular basis of heterostyly JF - Journal of experimental botany N2 - Heterostyly is a fascinating adaptation to promote outbreeding and a classical paradigm of botany. In the most common type of heterostyly, plants either form flowers with long styles and short stamens, or short styles and long stamens. This reciprocal organ positioning reduces pollen wastage and promotes cross-pollination, thus increasing male fitness. In addition, in many heterostylous species selfing and the generation of unfit progeny due to inbreeding depression is limited by a self-incompatibility system, thus promoting female fitness. The two floral forms are genetically determined by the S locus as a complex supergene, namely a chromosomal region containing several individual genes that control the different traits, such as style or stamen length, and are held together by very tight linkage due to suppressed recombination. Recent molecular-genetic studies in several systems, including Turnera, Fagopyrum, Linum, and Primula have begun to identify and characterize the causal heterostyly genes residing at the S locus. An emerging theme from several families is that the dominant S haplotype represents a hemizygous region not present on the recessive s haplotype. This provides an explanation for the suppressed recombination and suggests a scenario for the chromosomal evolution of the S locus. In this review, we discuss the results from recent molecular-genetic analyses in light of the classical models on the genetics and evolution of heterostyly. KW - CYP734A50 KW - distyly KW - GLOBOSA2 KW - hemizygosity KW - heterostyly KW - Primula KW - S locus KW - supergene KW - tristyly Y1 - 2017 U6 - https://doi.org/10.1093/jxb/erx387 SN - 0022-0957 SN - 1460-2431 VL - 68 SP - 5719 EP - 5730 PB - Oxford Univ. Press CY - Oxford ER -