A. Malizia | Università degli Studi "La Sapienza" di Roma (original) (raw)
Papers by A. Malizia
Il Giornale di chirurgia
The Authors report a case of renal rupture in a patient 36 years with acute abdominal pain and pr... more The Authors report a case of renal rupture in a patient 36 years with acute abdominal pain and progressive anaemia. The history of the patient shows no past signs and symptoms of either renal pathology or traumatic event. Radiological examinations demonstrates dislocation of the kidney through presence of large retroperitoneal formation interpretable as haematoma. Progressing bloodless, they proceeded to embolization of renal artery and successive nephrectomy. Only histological examination of the removed kidney demonstrates the presence of a renal clear cells adenocarcinoma.
Astronomy & Astrophysics, 2004
We report on the association of an X-ray source (WGA J2025.1+3342), serendipitously found with Be... more We report on the association of an X-ray source (WGA J2025.1+3342), serendipitously found with BeppoSAX in two separate observations, with the unidentified EGRET source 3EG J2027+3429. The source is detected from 1 keV up to about 100 keV, has a flat (Gamma=0.6-1.5) spectrum and is highly variable both in intensity and shape. The data indicate marginal evidence for an iron
We report the results of X-ray follow-up observations performed with Swift/XRT of three unidentif... more We report the results of X-ray follow-up observations performed with Swift/XRT of three unidentified INTEGRAL sources listed in the 4th IBIS Survey Catalogue (Bird et al. 2010, ApJS, 186, 1). IGR J02115-4407 There are three sources detected by XRT within the IBIS positional uncertainty (none of them are detected above 3 keV): Source #1: it is detected at 4 sigma
Monthly Notices of the Royal Astronomical Society, 2014
ABSTRACT We have analyzed the NVSS and SUMSS data at 1.4 GHz and 843 MHz for a well defined compl... more ABSTRACT We have analyzed the NVSS and SUMSS data at 1.4 GHz and 843 MHz for a well defined complete sample of hard X-ray AGN observed by INTEGRAL. A large number (70/79) of sources are detected in the radio band, showing a wide range of radio morphologies, from unresolved or slightly resolved cores to extended emission over several hundreds of kpc scales. The radio fluxes have been correlated with the 2-10 keV and 20-100 keV emission, revealing significant correlations with slopes consistent with those expected for radiatively efficient accreting systems. The high energy emission coming from the inner accretion regions correlates with the radio emission averaged over hundreds of kpc scales (i.e., thousands of years).
Il Giornale di chirurgia
The Authors report a case of renal rupture in a patient 36 years with acute abdominal pain and pr... more The Authors report a case of renal rupture in a patient 36 years with acute abdominal pain and progressive anaemia. The history of the patient shows no past signs and symptoms of either renal pathology or traumatic event. Radiological examinations demonstrates dislocation of the kidney through presence of large retroperitoneal formation interpretable as haematoma. Progressing bloodless, they proceeded to embolization of renal artery and successive nephrectomy. Only histological examination of the removed kidney demonstrates the presence of a renal clear cells adenocarcinoma.
We report on the possible association of the new INTEGRAL transient source IGR J17177-3656 (Atel ... more We report on the possible association of the new INTEGRAL transient source IGR J17177-3656 (Atel #3223) with an Emission-line star. At 2.7 arcmin, just outside the 90% IBIS/ISGRI positional uncertainty and almost consistent (at 1.51 arcmin) with the 90% positional uncertainty of JEM-X position, the SIMBAD database reports the star 2MASS J17175282-3655550 ([KW2003] 9) at the following coordinates RA: 17h
We report on a spectroscopic observation of the optical object USNO-A2.0 1500-06133361 (with J200... more We report on a spectroscopic observation of the optical object USNO-A2.0 1500-06133361 (with J2000 coordinates RA = 16 43 04.07, Dec = +65 32 50.9 and magnitude R ~ 18.9) inside the error circle of the XMM-Newton slew source XMMLS1 J164303.7+653253 (see Ibarra et al., ATel #1397), possibly associated with the unidentified INTEGRAL source IGR J16426+6536 (Bird et al. 2007,
Astrophysical Journal Letters, 2005
AN APPROACH FOR DEVELOPING INTELLIGENT SYSTEMS FOR SENTIMENT ANALYSIS OVER SOCIAL NETWORKS Claudi... more AN APPROACH FOR DEVELOPING INTELLIGENT SYSTEMS FOR SENTIMENT ANALYSIS OVER SOCIAL NETWORKS Claudia Galassini , Alessio Malizia , Andrea Bellucci1 2 2 Marketing and User Experience Designer1 , Avenida Maria Guerrero, 40. Leganes, Madrid, Spain. Universidad Carlos III de Madrid2 , Computer Engineering Dept. Avenida de la Universidad, 30. Leganes, Madrid, Spain. claudia.galassini@gmail.com1 , {amalizia, abellucci ...
ABSTRACT Providing alert communication in emergency situations is vital to reduce the number of v... more ABSTRACT Providing alert communication in emergency situations is vital to reduce the number of victims. However, this is a challenging goal for researchers and professionals due to the diverse pool of prospective users, e.g. people with disabilities as well as other vulnerable groups. Moreover, in the event of an emergency situation, many people could become vulnerable because of exceptional circumstances such as stress, an unknown environment or even visual impairment (e.g. fire causing smoke). Within this scope, a crucial activity is to notify affected people about safe places and available evacuation routes. In order to address this need, we propose to extend an ontology, called SEMA4A (Simple EMergency Alert 4 [for] All), developed in a previous work for managing knowledge about accessibility guidelines, emergency situations and communication technologies. In this paper, we introduce a semi-automatic technique for knowledge acquisition and modeling on accessible evacuation routes. We introduce a use case to show applications of the ontology and conclude with an evaluation involving several experts in evacuation procedures.
ABSTRACT Abstract In a CBRNe (Chemical, Biological, Radiological, Nuclear and explosive) scenario... more ABSTRACT Abstract In a CBRNe (Chemical, Biological, Radiological, Nuclear and explosive) scenario, biological agents hardly allow efficient detection/identification because of the incubation time that provides a lag in symptoms outbreak following their dissemination. The detection of atmospheric dispersion of biological agents (i.e.: toxins, viruses, bacteria and so on) is a key issue for the safety of people and security of environment. Another fundamental aspect is related to the efficiency of the sampling method, which leads to the identification of the agent released, in fact an effective sampling method is needed either to identify the contamination and to check for the decontamination procedure. Environmental monitoring is one of the ways to improve fast detection of biological agents; for instance, particle counters with the ability of discriminating between biological and non-biological particles are used for a first warning when the amount of biological particles exceeds a particular threshold. Nevertheless, these systems are not able to distinguish between pathogen and non-pathogen organisms, thus, classical “laboratory” assays are still required to unambiguously identify the particle which triggered the warning signal. In this work, a combination of commercially available equipment for detection and identification of the atmospheric dispersion of biological agents was evaluated in partnership between the Italian Army, the Department of Industrial Engineering and the School of Medicine and Surgery of the University of Rome “Tor Vergata”. The aim of this work, whose results are presented here, was to conduce preliminary studies on the dynamics of biological aerosols fallout after its dispersion, to improve detection, sampling and identification techniques. This will help minimizing the impact of the release of biological agents, guarantee environmental, and people safety and security Parole Chiave: Keywords: Biological contamination; particle counters; air sampling; detection; identification; decontamination.
Abstract Third generation devices, such as smartphones, have the possibility of knowing the posit... more Abstract Third generation devices, such as smartphones, have the possibility of knowing the position of the user. By combining time, position and data in the Cloud it is possible to make smart deductions as to what information the user needs. These deductions can be performed by an automated assistant that have access to the user's e-mail and SMS messages, calendar, phone book, notes, etc., as well as to the position of the user. The assistant can present the information in an" I feel lucky" display on the user's smartphone. ...
Lecture Notes in Computer Science, 2009
2010 IEEE Symposium on Visual Languages and Human-Centric Computing, 2010
Abstract Pattern languages might be useful tools for design as far as designers can identify the ... more Abstract Pattern languages might be useful tools for design as far as designers can identify the right patterns. For this users need to understand the relationships between patterns and how to combine them. In this process, knowing how patterns have been used by other designers might help in identifying the best combination of solutions. In this paper we propose a module that recommends patterns based on the selection already made by them, with a view to supporting designers in making the correct design decisions.
Lecture Notes in Computer Science, 2011
The use of pattern languages is not so straightforward since itsusers have to identify the patter... more The use of pattern languages is not so straightforward since itsusers have to identify the patterns they need, browsing the language and understanding both the benefits and trade-offs of each pattern as well as the relations and interactions it has with other patterns. Novice designers might benefit from tools that assist them in this learning task. In this paper we describe a recommendation tool embedded in a visual environment for pattern-based design which aims at suggesting patterns to help novice designers to produce better ...
Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing IX, 2013
ABSTRACT Recently surveying large areas in an automatic way, for early detection of harmful chemi... more ABSTRACT Recently surveying large areas in an automatic way, for early detection of harmful chemical agents, has become a strategic objective of defence and public health organisations. The Lidar-Dial techniques are widely recognized as a cost-effective alternative to monitor large portions of the atmosphere but, up to now, they have been mainly deployed as ground based stations. The design reported in this paper concerns the development of a Lidar-Dial system compact enough to be carried by a small airplane and capable of detecting sudden releases in air of harmful and/or polluting substances. The proposed approach consists of continuous monitoring of the area under surveillance with a Lidar type measurement. Once a significant increase in the density of backscattering substances is revealed, it is intended to switch to the Dial technique to identify the released chemicals and to determine its concentration. In this paper, the design of the proposed system is described and the simulations carried out to determine its performances are reported. For the Lidar measurements, commercially available Nd- YAG laser sources have already been tested and their performances, in combination with avalanche photodiodes, have been experimentally verified to meet the required specifications. With regard to the DIAL measurements, new compact CO2 laser sources are being investigated. The most promising candidate presents an energy per pulse of about 50 mJ typical, sufficient for a range of at least 500m. The laser also provides the so called «agile tuning» option that allows to quickly tune the wavelength. To guarantee continuous, automatic surveying of large areas, innovative solutions are required for the data acquisition, self monitoring of the system and data analysis. The results of the design, the simulations and some preliminary tests illustrate the potential of the chosen, integrated approach.
Il Giornale di chirurgia
The Authors report a case of renal rupture in a patient 36 years with acute abdominal pain and pr... more The Authors report a case of renal rupture in a patient 36 years with acute abdominal pain and progressive anaemia. The history of the patient shows no past signs and symptoms of either renal pathology or traumatic event. Radiological examinations demonstrates dislocation of the kidney through presence of large retroperitoneal formation interpretable as haematoma. Progressing bloodless, they proceeded to embolization of renal artery and successive nephrectomy. Only histological examination of the removed kidney demonstrates the presence of a renal clear cells adenocarcinoma.
Astronomy & Astrophysics, 2004
We report on the association of an X-ray source (WGA J2025.1+3342), serendipitously found with Be... more We report on the association of an X-ray source (WGA J2025.1+3342), serendipitously found with BeppoSAX in two separate observations, with the unidentified EGRET source 3EG J2027+3429. The source is detected from 1 keV up to about 100 keV, has a flat (Gamma=0.6-1.5) spectrum and is highly variable both in intensity and shape. The data indicate marginal evidence for an iron
We report the results of X-ray follow-up observations performed with Swift/XRT of three unidentif... more We report the results of X-ray follow-up observations performed with Swift/XRT of three unidentified INTEGRAL sources listed in the 4th IBIS Survey Catalogue (Bird et al. 2010, ApJS, 186, 1). IGR J02115-4407 There are three sources detected by XRT within the IBIS positional uncertainty (none of them are detected above 3 keV): Source #1: it is detected at 4 sigma
Monthly Notices of the Royal Astronomical Society, 2014
ABSTRACT We have analyzed the NVSS and SUMSS data at 1.4 GHz and 843 MHz for a well defined compl... more ABSTRACT We have analyzed the NVSS and SUMSS data at 1.4 GHz and 843 MHz for a well defined complete sample of hard X-ray AGN observed by INTEGRAL. A large number (70/79) of sources are detected in the radio band, showing a wide range of radio morphologies, from unresolved or slightly resolved cores to extended emission over several hundreds of kpc scales. The radio fluxes have been correlated with the 2-10 keV and 20-100 keV emission, revealing significant correlations with slopes consistent with those expected for radiatively efficient accreting systems. The high energy emission coming from the inner accretion regions correlates with the radio emission averaged over hundreds of kpc scales (i.e., thousands of years).
Il Giornale di chirurgia
The Authors report a case of renal rupture in a patient 36 years with acute abdominal pain and pr... more The Authors report a case of renal rupture in a patient 36 years with acute abdominal pain and progressive anaemia. The history of the patient shows no past signs and symptoms of either renal pathology or traumatic event. Radiological examinations demonstrates dislocation of the kidney through presence of large retroperitoneal formation interpretable as haematoma. Progressing bloodless, they proceeded to embolization of renal artery and successive nephrectomy. Only histological examination of the removed kidney demonstrates the presence of a renal clear cells adenocarcinoma.
We report on the possible association of the new INTEGRAL transient source IGR J17177-3656 (Atel ... more We report on the possible association of the new INTEGRAL transient source IGR J17177-3656 (Atel #3223) with an Emission-line star. At 2.7 arcmin, just outside the 90% IBIS/ISGRI positional uncertainty and almost consistent (at 1.51 arcmin) with the 90% positional uncertainty of JEM-X position, the SIMBAD database reports the star 2MASS J17175282-3655550 ([KW2003] 9) at the following coordinates RA: 17h
We report on a spectroscopic observation of the optical object USNO-A2.0 1500-06133361 (with J200... more We report on a spectroscopic observation of the optical object USNO-A2.0 1500-06133361 (with J2000 coordinates RA = 16 43 04.07, Dec = +65 32 50.9 and magnitude R ~ 18.9) inside the error circle of the XMM-Newton slew source XMMLS1 J164303.7+653253 (see Ibarra et al., ATel #1397), possibly associated with the unidentified INTEGRAL source IGR J16426+6536 (Bird et al. 2007,
Astrophysical Journal Letters, 2005
AN APPROACH FOR DEVELOPING INTELLIGENT SYSTEMS FOR SENTIMENT ANALYSIS OVER SOCIAL NETWORKS Claudi... more AN APPROACH FOR DEVELOPING INTELLIGENT SYSTEMS FOR SENTIMENT ANALYSIS OVER SOCIAL NETWORKS Claudia Galassini , Alessio Malizia , Andrea Bellucci1 2 2 Marketing and User Experience Designer1 , Avenida Maria Guerrero, 40. Leganes, Madrid, Spain. Universidad Carlos III de Madrid2 , Computer Engineering Dept. Avenida de la Universidad, 30. Leganes, Madrid, Spain. claudia.galassini@gmail.com1 , {amalizia, abellucci ...
ABSTRACT Providing alert communication in emergency situations is vital to reduce the number of v... more ABSTRACT Providing alert communication in emergency situations is vital to reduce the number of victims. However, this is a challenging goal for researchers and professionals due to the diverse pool of prospective users, e.g. people with disabilities as well as other vulnerable groups. Moreover, in the event of an emergency situation, many people could become vulnerable because of exceptional circumstances such as stress, an unknown environment or even visual impairment (e.g. fire causing smoke). Within this scope, a crucial activity is to notify affected people about safe places and available evacuation routes. In order to address this need, we propose to extend an ontology, called SEMA4A (Simple EMergency Alert 4 [for] All), developed in a previous work for managing knowledge about accessibility guidelines, emergency situations and communication technologies. In this paper, we introduce a semi-automatic technique for knowledge acquisition and modeling on accessible evacuation routes. We introduce a use case to show applications of the ontology and conclude with an evaluation involving several experts in evacuation procedures.
ABSTRACT Abstract In a CBRNe (Chemical, Biological, Radiological, Nuclear and explosive) scenario... more ABSTRACT Abstract In a CBRNe (Chemical, Biological, Radiological, Nuclear and explosive) scenario, biological agents hardly allow efficient detection/identification because of the incubation time that provides a lag in symptoms outbreak following their dissemination. The detection of atmospheric dispersion of biological agents (i.e.: toxins, viruses, bacteria and so on) is a key issue for the safety of people and security of environment. Another fundamental aspect is related to the efficiency of the sampling method, which leads to the identification of the agent released, in fact an effective sampling method is needed either to identify the contamination and to check for the decontamination procedure. Environmental monitoring is one of the ways to improve fast detection of biological agents; for instance, particle counters with the ability of discriminating between biological and non-biological particles are used for a first warning when the amount of biological particles exceeds a particular threshold. Nevertheless, these systems are not able to distinguish between pathogen and non-pathogen organisms, thus, classical “laboratory” assays are still required to unambiguously identify the particle which triggered the warning signal. In this work, a combination of commercially available equipment for detection and identification of the atmospheric dispersion of biological agents was evaluated in partnership between the Italian Army, the Department of Industrial Engineering and the School of Medicine and Surgery of the University of Rome “Tor Vergata”. The aim of this work, whose results are presented here, was to conduce preliminary studies on the dynamics of biological aerosols fallout after its dispersion, to improve detection, sampling and identification techniques. This will help minimizing the impact of the release of biological agents, guarantee environmental, and people safety and security Parole Chiave: Keywords: Biological contamination; particle counters; air sampling; detection; identification; decontamination.
Abstract Third generation devices, such as smartphones, have the possibility of knowing the posit... more Abstract Third generation devices, such as smartphones, have the possibility of knowing the position of the user. By combining time, position and data in the Cloud it is possible to make smart deductions as to what information the user needs. These deductions can be performed by an automated assistant that have access to the user's e-mail and SMS messages, calendar, phone book, notes, etc., as well as to the position of the user. The assistant can present the information in an" I feel lucky" display on the user's smartphone. ...
Lecture Notes in Computer Science, 2009
2010 IEEE Symposium on Visual Languages and Human-Centric Computing, 2010
Abstract Pattern languages might be useful tools for design as far as designers can identify the ... more Abstract Pattern languages might be useful tools for design as far as designers can identify the right patterns. For this users need to understand the relationships between patterns and how to combine them. In this process, knowing how patterns have been used by other designers might help in identifying the best combination of solutions. In this paper we propose a module that recommends patterns based on the selection already made by them, with a view to supporting designers in making the correct design decisions.
Lecture Notes in Computer Science, 2011
The use of pattern languages is not so straightforward since itsusers have to identify the patter... more The use of pattern languages is not so straightforward since itsusers have to identify the patterns they need, browsing the language and understanding both the benefits and trade-offs of each pattern as well as the relations and interactions it has with other patterns. Novice designers might benefit from tools that assist them in this learning task. In this paper we describe a recommendation tool embedded in a visual environment for pattern-based design which aims at suggesting patterns to help novice designers to produce better ...
Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing IX, 2013
ABSTRACT Recently surveying large areas in an automatic way, for early detection of harmful chemi... more ABSTRACT Recently surveying large areas in an automatic way, for early detection of harmful chemical agents, has become a strategic objective of defence and public health organisations. The Lidar-Dial techniques are widely recognized as a cost-effective alternative to monitor large portions of the atmosphere but, up to now, they have been mainly deployed as ground based stations. The design reported in this paper concerns the development of a Lidar-Dial system compact enough to be carried by a small airplane and capable of detecting sudden releases in air of harmful and/or polluting substances. The proposed approach consists of continuous monitoring of the area under surveillance with a Lidar type measurement. Once a significant increase in the density of backscattering substances is revealed, it is intended to switch to the Dial technique to identify the released chemicals and to determine its concentration. In this paper, the design of the proposed system is described and the simulations carried out to determine its performances are reported. For the Lidar measurements, commercially available Nd- YAG laser sources have already been tested and their performances, in combination with avalanche photodiodes, have been experimentally verified to meet the required specifications. With regard to the DIAL measurements, new compact CO2 laser sources are being investigated. The most promising candidate presents an energy per pulse of about 50 mJ typical, sufficient for a range of at least 500m. The laser also provides the so called «agile tuning» option that allows to quickly tune the wavelength. To guarantee continuous, automatic surveying of large areas, innovative solutions are required for the data acquisition, self monitoring of the system and data analysis. The results of the design, the simulations and some preliminary tests illustrate the potential of the chosen, integrated approach.