Publications by authors named "Cristian Toma"

3 Publications

  • Page 1 of 1

Chemical hemorrhagic cystitis: Diagnostic and therapeutic pitfalls (Review).

Exp Ther Med 2021 Jun 14;21(6):624. Epub 2021 Apr 14.

Department of Urology, 'George Emil Palade' University of Medicine, Pharmacy, Science and Technology of Targu-Mures, 540139 Targu-Mures, Romania.

Chemical cystitis (CC) is an inflammation of the bladder caused by various chemical agents ingested intentionally or accidentally. It is linked to chemotherapeutic agents such as cyclophosphamide, therapeutic agents for diverse diseases, and anesthetic agents consumed abusively for recreational effects such as ketamine, or can be linked to environmental and surrounding factors such as soaps, gels, spermicides, and dyes. CC is a pathology with an increasing incidence that is inadequately treated due to its infectious cystitis-like symptoms. The hemorrhagic form can have a rampant evolution. Treatment options of CC and its complications are under continuous research with no accepted standardized sequence. In many situations, the treatments are difficult to obtain, administer, and follow-up. In addition, the lack of experience of the physician may pose other obstacles in delivering treatment to the patient. In conclusion, CC is a disease with an increasing incidence, challenging to diagnose, which is frequently mistreated, and has multiple treatment modalities that still require standardization in administration and sequencing.
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http://dx.doi.org/10.3892/etm.2021.10056DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8082586PMC
June 2021

IoT Solution for Smart Cities' Pollution Monitoring and the Security Challenges.

Sensors (Basel) 2019 Aug 2;19(15). Epub 2019 Aug 2.

Department of Economic Informatics and Cybernetics, Faculty of Cybernetics, Statistics and Economic Informatics, Bucharest University of Economic Studies, 010552 Bucharest, Romania.

Air pollution is a major factor in global heating and an increasing focus is centered on solving this problem. Urban communities take advantage of Information Technology (IT) and communications technologies in order to improve the control of environmental emissions and sound pollution. The aim is to mitigate health threatening risks and to raise awareness in relation to the effects of air pollution exposure. This paper investigates the key issues of a real-time pollution monitoring system, including the sensors, Internet of Things (IoT) communication protocols, and acquisition and transmission of data through communication channels, as well as data security and consistency. Security is a major focus in the proposed IoT solution. All other components of the system revolve around security. The bill of the materials and communications protocols necessary for the designing, development, and deployment of the IoT solution are part of this paper, as well as the security challenges. The paper's proof of concept (PoC) addresses IoT security challenges within the communication channels between IoT gateways and the cloud infrastructure where data are transmitted to. The security implementations adhere to existing guidelines, best practices, and standards, ensuring a reliable and robust solution. In addition, the solution is able to interpret and analyze the collected data by using predictive analytics to create pollution maps. Those maps are used to implement real-time countermeasures, such as traffic diversion in a major city, to reduce concentrations of air pollutants by using existing data collected over a year. Once integrated with traffic management systems-cameras monitoring and traffic lights-this solution would reduce vehicle pollution by dynamically offering alternate routes or even enforcing re-routing when pollution thresholds are reached.
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http://dx.doi.org/10.3390/s19153401DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6696184PMC
August 2019

Expanding the field of view by polarization multiplexing.

Appl Opt 2010 Dec;49(34):H40-6

CREOL, The College of Optics and Photonics, University of Central Florida, 4000 Central Florida Boulevard, Orlando, Florida 32816, USA.

We introduce and demonstrate a method for expanding the field of view of a typical imaging system by multiplexing images encoded onto different polarization states and recovering them from a limited number of measurements.
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http://dx.doi.org/10.1364/AO.49.000H40DOI Listing
December 2010
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