Callisto

Labastide-Saint-Pierre, France
Labastide-Saint-Pierre, France
SEARCH FILTERS
Time filter
Source Type

News Article | June 12, 2017
Site: www.businesswire.com

OTTAWA, Ontario--(BUSINESS WIRE)--With the shared vision of creating technology that makes campuses and communities safer, RallyEngine Inc. today announced plans to partner with US-based nonprofit Callisto to bring its ground-breaking sexual assault reporting service to Canada. “We envision a world where sexual assault is rare and survivors receive the support they need,” said Callisto founder and CEO Jessica Ladd, whose 2016 TED Talk has been watched millions of times. “RallyEngine embraced our survivor-centred system and we are thrilled that their innovative package will help advance this mission across Canada.” Powered by Callisto, RallyEngine SafeSpace™ is a secure, third-party information escrow service that provides a documentation and reporting tool with three options for survivors: to record sexual assault, to report electronically to authorities, and to only report if the perpetrator is identified by another user. It is estimated that between 15% to 25% of North American college and university-aged women will experience some form of sexual assault during their academic career. And the reporting rate for sexual violence in Canada is lower than any other crime, ranging between 3 to 8 per cent. “The incidents are there but the reporting needs to catch up,” said Debra Tomlinson, CEO of the Association of Alberta Sexual Assault Services. “Dispelling the myths around sexual violence will help encourage more women to speak out, and providing a safe space to do it will hopefully increase those low numbers.” End-users will be able to access SafeSpace online and as part of their campus’s RallyEngine-powered mobile safety app for real-time alerting/rallying, tipline, work/study-alone, and more. “This is a top priority on North American campuses right now,” said Ladd. “Secure, trauma-informed reporting tools are an important complement to the modern policies universities are implementing.” SafeSpace deployments will begin this summer. For more information, visit: http://www.rallyengine.com/safespace. “Unfortunately, sexual violence is still a big problem – on campus, in the workplace, and in society generally. And there is still much that organizations – from universities to law enforcement – can do to handle it better,” said RallyEngine president Steve Hardy. “But let's start by empowering the survivors. Let's provide them a self-managed space to draft, edit, and confidentially submit incident reports at their own pace. And let's identify aggregate organizational trends that can prevent repeat perpetrators from hurting others.” SafeSpace was made possible in part by an R&D grant from the National Research Council. Representatives from RallyEngine will be at the Canadian Association of University Business Officers (CAUBO) conference at the Westin Ottawa on June 12th and 13th. RallyEngine is a nimble platform for alerting groups, rallying teams, and enhancing community capacity – for smart, safe campuses, companies, and cities. RallyEngine is a pre-qualified innovation under the federal Build in Canada Innovation Program and originated as the mobile rapid-response network powering the Missing Children Society of Canada’s ground-breaking, police-endorsed CodeSearch program. Callisto is a 501(c)(3) nonprofit organization that creates technology to combat sexual assault, empower survivors, and advance justice. Its online, trauma-informed platform allows students to create records of sexual assault, report directly to authorities, or notify schools of repeat offenders. Callisto partners include Stanford, the University of San Francisco, Pomona College and others.


Bozzi M.,University of Pavia | Cametti M.,University of Pavia | Fornaroli M.,Callisto | Maguire P.,Zelinda Ltd | And 4 more authors.
IEEE Antennas and Propagation Magazine | Year: 2012

Space communications between distant spacecraft and the Earth are mainly based on large reflector antennas, such as the 35-m Deep-Space Antennas of the European Space Agency. These provide the required G T and EIRP to existing missions, such as, for example, Rosetta, Mars Express, and Venus Express. However, future missions to Mars and to outer planets (Jupiter and Saturn) are going to require higher performance for the ground segment that current stations cannot offer. This paper presents the results carried out in the framework of a strategic feasibility study promoted by the European Space Agency to identify the best architecture for future deep-space ground stations. Technical, economic, and operating aspects are described, deriving high-level specifications for future ground stations, and discussing in detail the antenna options and the subsystem devices. As an outcome, two different ground-station architectures, based on arrays of reflector antennas, are proposed and discussed in detail. These indicate the roadmaps that are going to pave the road to the final implementation. © 2011 IEEE.


Rawson S.,Callisto | Fornaroli M.,Callisto | Bozzi M.,University of Pavia | Cametti M.,University of Pavia | And 4 more authors.
Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011 | Year: 2011

This paper presents the results of an architectural study into future ESA Deep-Space ground stations. The objective of the project is to investigate solutions for building ground stations for future Deep Space missions for exploration of the outer reaches of the solar system. The study addresses not only the engineering challenges associated with various technical options, but also the cost, with a clear goal of identifying the most cost effective approach. © 2011 EurAAP.


Pasian M.,University of Pavia | Cametti M.,University of Pavia | Bozzi M.,University of Pavia | Perregrini L.,University of Pavia | Rawson S.,Callisto
International Journal of Microwave and Wireless Technologies | Year: 2011

Multi-satellite missions, such as the next generation of METEOSAT geostationary satellites, require a ground station able to support an arbitrary number of satellites that can fly wherever within a pre-determined sky region, called control box. The use of high frequencies, around 26 GHz, imposes on the ground station high antenna gains to compensate for the noise temperature collected at those frequencies to obtain the specified G/T. Regardless of the narrow beamwidths that emerged from the adoption of high antenna gains, it is also required to operate with fixed (i.e. without any kind of tracking) antennas. This paper shows how all these specifications drive a new type of ground station with respect to current solutions. The proposed architecture is based on a multi-reflector system able to provide a set of interleaved beams, which generates an almost uniform coverage of the control box. The architecture is analyzed and designed, optimizing all the main antenna parameters, and presenting the analytical results. © Copyright Cambridge University Press and the European Microwave Association 2011.


Martellosio A.,University of Pavia | Pasian M.,University of Pavia | Rayet R.,Callisto | Rawson S.,Callisto | Bonhoure T.,Callisto
2016 10th European Conference on Antennas and Propagation, EuCAP 2016 | Year: 2016

Receivers for radio-astronomical applications, in particular for very long baseline interferometry techniques, where a metal feed is often used to illuminate a reflector antenna, usually operates over wide bandwidths and cooled to low temperatures. In particular, the possibility of cooling not only the low noise amplifier, but also the entire feed is attractive to lower the equivalent noise temperature. However, this is usually achieved placing the feed within a Dewar, thus imposing an impact on the radiation properties of the feed itself. In addition, the feed performance can be further affected by the presence of a noise injection probe antenna, often required for calibration purposes. This paper presents the electromagnetic study of a cryogenic receiver, composed by a Quad Ridge Feed Horn (QRFH), a wideband noise injection antenna probe, and a cryogenic Dewar. The receiver works from 2 GHz to 14 GHz, intended for VLBI applications. The simulated and measured results show that a minor impact on the QRFH radiation patterns is expected from the Dewar and the probe antenna, while achieving the required coupling factor between the QRFH ports and the probe antenna. © 2016 European Association of Antennas and Propagation.


Pasian M.,University of Pavia | Cametti M.,University of Pavia | Bozzi M.,University of Pavia | Perregrini L.,University of Pavia | Rawson S.,Callisto
European Microwave Week 2010, EuMW2010: Connecting the World, Conference Proceedings - European Microwave Conference, EuMC 2010 | Year: 2010

This paper presents the preliminary studies and results for ground stations to be used to control multi-satellite missions, such as the next generation of METEOSAT satellites, without any kind of mechanical or electric beam steering. The most important draft specifications driving the design of these ground stations will be discussed in detail, highlighting those which are contributing to envision a different system with respect to standard ground stations. The most promising antenna architectures are described and the preliminary results from antenna analyses are reported. © 2010 EuMA.


Pasian M.,University of Pavia | Chambon C.,Callisto | Bozzi M.,University of Pavia | Perregrini L.,University of Pavia | And 3 more authors.
IET Microwaves, Antennas and Propagation | Year: 2014

Future ground stations will require a high level of operational flexibility and, for this reason, the possibility to adjust their receiving performance (i.e. signal-over-noise) is beneficial. This study presents an approach to achieve this flexibility based on a dual-temperature low-noise amplifier, which can be normally operated at room temperature (300 K), reducing the operational and maintenance costs, and at cryogenic temperature (103 K) only when required, for example, for critical mission supports. To demonstrate the effectiveness of this solution, a dual-temperature K-band low-noise amplifier is designed, manufactured and measured for the first time. Critical aspects, such as the stability of the electromagnetic response over the entire temperature range, and the reduction of the thermal load from the entire assembly, fundamental for a fast transition between room and cryogenic temperatures, are discussed. In particular, the low-noise amplifier exhibits a minimum gain of 20 dB over the entire working bandwidth (18-22 GHz) and a maximum noise figure of 2.2 at 300 K and 1.4 at 103 K, with a transition time between room and cryogenic temperature of <120 min because of a total thermal load lower than 1 W. © The Institution of Engineering and Technology 2014.

Loading Callisto collaborators
Loading Callisto collaborators