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The UHRA is a repository of the research produced by the University of Hertfordshire. Research in UHRA can be viewed and downloaded freely by researchers and students all over the world.

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  • Embedding Trust in the Media Access Control Protocol for Wireless Networks 

    Alocious, Chaminda; Xiao, Hannan; Christianson, Bruce; Spring, William Joseph (2025-01-09)
    IEEE 802.11 is one of the most common medium access control (MAC) protocols used in wireless networks. The carrier sense multiple access with collision avoidance (CSMA/CA) mechanisms in 802.11 have been designed under the ...

  • Virac2: NIR Astrometry and Time Series Photometry for 500M+ Stars from the VVV and VVVX Surveys 

    Smith, Leigh C.; Lucas, Philip W.; Koposov, Sergey E.; González-Fernández, Carlos; Alonso-García, Javier; Minniti, Dante; Sanders, Jason L.; Bedin, Luigi R.; Belokurov, Vasily; Evans, N. Wyn; Hempel, Maren; Ivanov, Valentin D.; Kurtev, Radostin G.; Saito, Roberto K. (2025-02-28)
    We present VIRAC2, a catalogue of positions, proper motions, parallaxes and Z, Y, J, H, and K_s near-infrared photometric time series of 545 346 537 unique stars. The catalogue is based on a point spread function fitting ...

  • Investigating social orienting in children with Phelan-McDermid syndrome and ‘idiopathic’ autism 

    San José Cáceres, Antonia; Wilkinson, Emma; Cooke, Jennifer; Baskett, Victoria; Blackmore, Charlotte; Crawley, Daisy Victoria; Durkin, Allison; Halpern, Danielle; Núñez, María; Siper, Page; Murphy, Declan G.; Foss-Feig, Jennifer; Kolevzon, Alexander; Loth, Eva (2024-11-19)
    Background Phelan-McDermid syndrome (PMS) is a rare genetic syndrome characterized by developmental delay/ intellectual disability, absent or delayed speech, physical dysmorphic features and high rates of autistic features. ...

  • The impact of social networking addiction on the academic achievement of university students globally: A meta-analysis 

    Salari, Nader; Zarei, Hosna; Rasoulpoor, Shabnam; Ghasemi, Hooman; Hosseinian Far, Amin; Mohammadi, Masoud (2025-06-30)
    Objective There have been a significant surge in the adoption of social networks by different groups over the past decade and students are no exception. These networks create several opportunities for university students, ...

  • Assessment of design approaches for reconfigurable manufacturing systems based on forecasted demand data 

    Rezaie, Parham; Khashkhashimoghadam, Shokraneh (2025-03-30)
    In this paper, the problem of configuration design in Reconfigurable Manufacturing Systems (RMS) is addressed for a scalable production system that can produce different products which belong to the same part family. To ...

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