BACKGROUNDColorectal cancer (CRC) is the third most common cancer worldwide. In the West, the incidence has stabilized or decreased. There are only occasional published studies that describe the epidemiology of CRC and its changing trends in Jordan and other Middle Eastern countries.OBJECTIVESDescribe the epidemiological features of CRC, predict future trends and compare the results with those from other Arab and Middle Eastern countries and the West.DESIGNRetrospective epidemiologic study.SETTINGTertiary center, teaching hospital.PATIENTS AND METHODSA retrospective study covering 14 years (2003 to 2016). All cases of CRC were retrieved from the computerized system. Demographic data were recorded and analyzed using Mathematica 11.2 and IBM SPSS version 23 software. Mathematical grey forecasting models were used to predict future trends.MAIN OUTCOME MEASURESNumber of cases and accumulated average over time, percentages of demographic variables and results of mathematical forecasting models.SAMPLE SIZE970.RESULTSThe male-to-female ratio was 1.5:1 and 97.4% were adenocarcinomas. The accumulated mean number of diagnosed cases doubled from 44.8 between 2003 and 2007 to 82.9 from 2008 to 2016. The accumulated annual average increased beginning in 2008. The forecasting models predicted a further increase in CRC. The mean age was 60.5 years and the median 62.0. Half of the cases presented at an advanced stage (TNM stage III or IV).CONCLUSIONCRC is increasing and is expected to increase further. Better health care planning that includes education and screening is needed to reverse these rising trends and to improve early detection.LIMITATIONSSingle institution study.

We propose a study on the efects of live streaming on an educational game's learning outcomes. The COVID-19 pandemic has strengthened the call for interactive online learning experiences. There is a growing body of literature examining learning on platforms such as Twitch, and studies have shown that enhancing in-game performance is possible from viewing a stream. However, little work has explored whether learning from live streaming educational games, where in-game performance relates to educational outcomes outside of the game context, is possible. We share the details of our proposed study, in which an educational game called Angle Jungle will streamed to participants, and learning gains will be compared to three non-live streamed conditions. By executing this study, we can understand the benefts and shortcomings of current live streaming interfaces in supporting educational games, paving the way for the design of novel and interactive learning experiences built for live streaming platforms. CCS CONCEPTS• Human-centered computing → User studies; • Applied computing → Computer games; • Social and professional topics → K-12 education.

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Abstract-Requirements Engineering (RE) is closely tied to other development activities and is at the heart and foundation of every software development process. This makes RE the most data and communication intensive activity compared to other development tasks. The highly demanding communication makes task switching and interruptions inevitable in RE activities. While task switching often allows us to perform tasks effectively, it imposes a cognitive load and can be detrimental to the primary task, particularly in complex tasks as the ones typical for RE activities. Visualization mechanisms enhanced with analytical methods and interaction techniques help software developers obtain a better cognitive understanding of the complexity of RE decisions, leading to timelier and higher quality decisions. In this paper, we propose to apply interactive visual analytics techniques for managing requirements decisions from various perspectives, including stakeholders communication, RE task switching, and interruptions. We propose a new layered visualization framework that supports the analytical reasoning process of task switching. This framework consists of both data analysis and visualization layers. The visual layers offer interactive knowledge visualization components for managing task interruption decisions at different stages of an interruption (i.e. before, during, and after). The analytical layers provide narrative knowledge about the consequences of task switching decisions and help requirements engineers to recall their reasoning process and decisions upon resuming a task. Moreover, we surveyed 53 software developers to test our visual prototype and to explore more required features for the visual and analytical layers of our framework.