Since 2000, there have been a number of spaceborne satellites that have changed the way we assess and predict natural hazards. These satellites are able to quantify physical geographic phenomena associated with the movements of the earth's surface (earthquakes, mass movements), water (floods, tsunamis, storms), and fire (wildfires). Most of these satellites contain active or passive sensors tha...

Work is progressing on monopropellant thrusters for use as an attitude control system for nanosatellites (satellites whose mass is under 10 kilograms). The thrust range for these microthrusters is on the order of millinewtons. Systems using both hydrazine and hydrogen peroxide are being developed which will offer higher performance than currently available thrusters for nanosatellites. Complete...

grant application for a twin heritability and linkage study on the grounds that ‘twin studies were an outdated methodology with no scientific merit, publishable only in obscure journals if anything ...’. Neither Twin Research and Human Genetics nor any of the other peer-reviewed journals cited by the authors of this special issue warrants the term ‘obscure’. Rather than being ‘outdated’, twin r...

OBJECTIVE To assess consumer understanding of fruit and vegetable serving sizes. DESIGN The Western Australian Health Department launched the Go for 2&5(R) campaign to promote fruit and vegetables in March 2002. The Health & Wellbeing Surveillance System surveyed 1108 adults, aged 16 years and over, between September and November 2002 about what constituted a serving of fruit and of vegetable...

The next workshop will be held in Boulder, Colorado, March 5-9, 2018. The course is planned to include sessions on: causes of variation; introduction to R programming; introduction to umx; path analysis and variance components; likelihood; matrix algebra; univariate twin analysis; biometrical genetics; categorical data; between group heterogeneity; continuous heterogeneity and G x E interaction...

Satellite data are the main source of information in Numerical Weather Prediction (Szyndel (2003)), with 99% of the available data for global numerical weather prediction (NWP) being satellite based. It should also be noted that satellites are one of the few observing systems that can provide data at sufficiently high temporal and spatial frequency for regional and mesoscale models. The derivat...

Introduction: Mitral stenosis is a prevalent valvular disease in developing countries. Percutaneous mitral balloon valvuloplasty (PMBV) is the gold standard treatment. The main objective of this study was to assess the initial results of PMBV in patients with mitral stenosis during 16 years (2002-2018) in Mashhad, Iran. Materials and Methods: From April 2002 to March 2018, 770 patients underwen...

We present BVRI colors of 13 Jovian and 8 Saturnian irregular satellites obtained with the 2.56m Nordic Optical Telescope on La Palma, the 6.5m Magellan Baade Telescope on La Campanas, and the 6m MMT on Mt. Hopkins. The observations were performed between December 2001 to March 2002. Nearly all of the known irregular satellites can be divided into two distinct classes based on their colors. One...

For a pair of twin Earth’s artificial satellites placed in identical orbits with supplementary inclinations, in addition to the sum of the residuals of the nodal rates, already proposed for the LAGEOS–LARES mission, also the difference of the residuals of the perigee rates could be employed for measuring the general relativistic Lense–Thirring effect. Indeed, on one hand, the gravitomagnetic se...

OBJECTIVE The objective of the study was to determine the incidence, origin, and character of cerebral lesions in monochorionic twins with twin-to-twin transfusion syndrome treated with fetoscopic laser surgery. STUDY DESIGN This was a prospective study of monochorionic twins with twin-to-twin transfusion syndrome treated with fetoscopic laser surgery and monochorionic twins without twin-to-t...