45 research outputs found
Responsibility & Risk: Operationalizing comprehensive climate risk layering in Austria among multiple actors (RESPECT)
Damages caused by climate and weather extremes, such as floods and droughts, have increased over the last few decades and will likely broaden with the progression of climate change and socioeconomic development. Such climate-related risks are already being governed within the framework of natural disaster risk management, as well as climate change adaptation. However, to manage these climate risks more effectively it is necessary to link these two domains under the umbrella of Climate Risk Management (CRM)
New times of minima of some eclipsing binary stars
We present several CCD minima observations of eclipsing binaries
THEORETICAL RESEARCH ON THE WORKING PROCESS OF COMPLEX AGGREGATES FOR SOIL TILLAGE - REVIEW
The paper presents a summary of theoretical research developed in the country, related to the design and optimization of complex aggregates for soil processing and the improvement of their quality indices of work
The size, shape, density and ring of the dwarf planet Haumea from a stellar occultation
Haumeaâone of the four known trans-Neptunian dwarf planetsâis a very elongated and rapidly rotating body1, 2, 3. In contrast to other dwarf planets4, 5, 6, its size, shape, albedo and density are not well constrained. The Centaur Chariklo was the first body other than a giant planet known to have a ring system7, and the Centaur Chiron was later found to possess something similar to Charikloâs rings8, 9. Here we report observations from multiple Earth-based observatories of Haumea passing in front of a distant star (a multi-chord stellar occultation). Secondary events observed around the main body of Haumea are consistent with the presence of a ring with an opacity of 0.5, width of 70 kilometres and radius of about 2,287 kilometres. The ring is coplanar with both Haumeaâs equator and the orbit of its satellite Hiâiaka. The radius of the ring places it close to the 3:1 mean-motion resonance with Haumeaâs spin periodâthat is, Haumea rotates three times on its axis in the time that a ring particle completes one revolution. The occultation by the main body provides an instantaneous elliptical projected shape with axes of about 1,704 kilometres and 1,138 kilometres. Combined with rotational light curves, the occultation constrains the three-dimensional orientation of Haumea and its triaxial shape, which is inconsistent with a homogeneous body in hydrostatic equilibrium. Haumeaâs largest axis is at least 2,322 kilometres, larger than previously thought, implying an upper limit for its density of 1,885 kilograms per cubic metre and a geometric albedo of 0.51, both smaller than previous estimates1, 10, 11. In addition, this estimate of the density of Haumea is closer to that of Pluto than are previous estimates, in line with expectations. No global nitrogen- or methane-dominated atmosphere was detected.J.L.O. acknowledges funding from Spanish and Andalusian grants MINECO AYA-2014-56637-C2-1-P and J. A. 2012-FQM1776 as well as FEDER funds. Part of the research leading to these results received funding from the European Unionâs Horizon 2020 Research and Innovation Programme, under grant agreement no. 687378. B.S. acknowledges support from the French grants âBeyond Neptuneâ ANR-08-BLAN-0177 and âBeyond Neptune IIâ ANR-11-IS56-0002. Part of the research leading to these results has received funding from the European Research Council under the European Communityâs H2020 (2014-2020/ERC grant agreement no. 669416 âLucky Starâ). A.P. and R.S. have been supported by the grant LP2012-31 of the Hungarian Academy of Sciences. All of the Hungarian contributors acknowledge the partial support from K-125015 grant of the National Research, Development and Innovation Office (NKFIH). G.B.-R., F.B.-R., F.L.R., R.V.-M., J.I.B.C., M.A., A.R.G.-J. and B.E.M. acknowledge support from CAPES, CNPq and FAPERJ. J.C.G. acknowledges funding from AYA2015-63939-C2-2-P and from the Generalitat Valenciana PROMETEOII/2014/057. K.H. and P.P. were supported by the project RVO:67985815. The Astronomical Observatory of the Autonomous Region of the Aosta Valley acknowledges a Shoemaker NEO Grant 2013 from The Planetary Society. We acknowledge funds from a 2016 âResearch and Educationâ grant from Fondazione CRT. We also acknowledge the Slovakian project ITMS no. 26220120029
Study of Local tomato genotypes' genetical variation and resistance to TSWV by using different methods
Turkey is the third country among the tomato producing countries, after China and the USA, by the production value of 10,985,400 tons in a 300,000 ha area, in the world. Even though Turkey is not the native land of tomato, it contains a lot of local tomato cultivars owing to the ecological diversity. In this study, 76 local genotypes were examined to find out the source of resistance to TSWV which is one of the most significant viral infections of tomato. The Sw-5 gene- which is known to be the source of resistance, was scanned by CAPS molecular marker and different resistance sources research was made by mechanical innoculations. As the disease isolate, BATEM-1 was used-which is more aggressive than the other isolates. As the resistant control, Solanum peruvianum, 'LA 3667' and 'FORMULA F1' and as the sensitive control, BATEM line-1 was used. At the end of the study, among the examined materials, even though no resistance resources were found, the effectiveness of the Sw-5 gene against the local disease isolates was determined and that is to show the way for future studies