Me, us and them: evaluation of cooperation and competition in a location-based serious game design

Introduction Parallel to the growing interest in the deployment of digital games as an instructional tool for educational and social purposes and their theoretical underpinning and viability (Egenfeldt-Nielsen, 2006), the social aspect of gaming itself has also gained interest as in how various forms of human interaction in digital games and game play manifest. For example, Zagal, Nussbaum and Rosas (2002) developed a model for multiplayer game design to support initial steps in the design process of multiplayer games, proposing that social interaction depends on elements of the game (i.e. player(s), rules and goals, and props and tools) and characteristics of a multiplayer game. Moreover, mobile technologies offer new opportunities to embed and exploit multiplayer game and/or game features to various contexts, potentially adding an extra element to the human interaction and digital games, such as the spatial environment in which the digital game is played). For instance, due to GPS integration in mobile devices, game play progression in so called location-based games is based on players’ interaction with certain game features in a predefined physical location. For example, Huizinga, Admiraal, Akkerman and Dam (2009) developed a mobile city game for students from secondary education to acquire historical knowledge and motivation for history. Likewise, Facer et al. (2004) developed a mobile game experience to encourage the development of children’s conceptual understanding of animal behavior in a direct physical interaction with space and with other players. Due to new game formats, new media and technology opportunities, the social aspect of multiplayer digital gaming the complexity of optimizing game design and eventually game play rises. This paper therefore aims to further explore the competition and cooperation elements (Zagal et al, 2002) for a location-based serious game. This study was part of a larger study aimed to design and develop a game-based road safety campaign from a user-centered design perspective using several mixed methods throughout the game development process (Pagulayan, Keeker, Wixon, Romero, & Fuller, 2003). The goal was to develop a serious game to enhance the awareness of road safety and to stimulate safe behavior on the road among adolescents. In the first part of the game development process a literature review, interviews and focus groups with relevant stakeholders resulted in a game design concept. [Reference removed to protect anonymity] involved stakeholders in a co-design sessions to gather input on the perception and needs of the target group on several game mechanics. Insights obtained in part one led to the creation of a beta version of the game ‘City Jam’. The game’s goal is to become the most popular band of the city by collecting virtual items spread throughout the city center and therefore competing against one another in teams (four > team < ten); each team consists of two to four players and players have the option to cooperate given the game mechanics and features. In order to evaluate the results we considered a social hourglass shaped framework as to describe cooperation and competition during game play (see figure 1). Methodology Three field tests were deployed during the game development process of the beta version of the location-based serious game ‘City Jam’ with roughly one and a half month between each test. A total of 43 adolescents from the third cycle of secondary education were recruited from eight schools (see table 1). Field test Game testers (N=41) Number of teams Age range (years) Gender M F 1 18 4 14-18 15 3 2 7 3 14-17 6 1 3 16 5 15-17 8 8 Table 1. demographics of game testers in the iterative testing phase. Each field test consisted of two parts: the game test and a focus group held directly afterwards to evaluate the game play and experience among the target group. In preparation for each field test a checklist with predefined and/or adjusted goals to optimize game experience were established in collaboration with the game developer. Game mechanics throughout the development process were subject to adjustment based on the insights and results obtained in the test phase. In the game test audio and video recordings were gathered with a Go Pro camera with head mount and audio recordings and survey data were collected in focus groups sessions with (a selection of) the game testers. A semi structured list was used as guidance throughout the focus group. Survey field test included game experience. However, given that the full final version of the game was developed after field test three, researchers evaluated the value of the Likert scale survey on its contribution and decided to reduce survey to open questions only: game testers were asked to write down the 3 most positive and 3 most negative experiences during game play. The field tests were held after school time in the low traffic city center. Each game test was approximately two hours and focus group sessions were around one hour. Results Our preliminary results from field test one showed that on the competitive level sabotaging other teams (dropping virtual bombs to steal points) was considered one of the most positive aspects of overall game play. Also, the menu function ‘newsfeed’ was also received positive as to obtain knowledge on the movements and actions of other teams (although not all teams used this function). Although game testers enjoyed the location based game (good concept), they stated that the game was seen as an individual rather than a team game. Discussing strategy, explaining game features was mixed from team to team and testers addressed that they were not always involved in the game given the restriction of game play on one tablet (size, visibility and walking makes cooperation difficult). Additional physical maps with information on items and scores for non-tablet holders for each team were often neglected during game play. Four promo actions (e.g. taking group pictures with virtual fans) were integrated as to promote cooperation and interaction, however, actual interaction with these elements were considered as mildly interactive. When players were asked during the focus group which elements they would add to improve game experience, several suggestions were made to interact with other groups (via chat) and to expand options and scores of sabotaging other teams. Furthermore suggestions were made to improve cooperation (extra tablet or sync with mobile devices). Field test two results strengthened the positive game experience of sabotaging other teams as it was a recurrent topic of discussion in the focus group. In focus groups, teams addressed that city maps were not used during game play although a game element was changed so that pubs were removed from the tablet map and only shown on the physical city map in order to stimulate cooperation within teams. Traffic questions implemented in the game with the purpose to stimulate cooperation and discussion resulted in mixed results; some teams negotiate and in other teams the tablet holder made decisions and proceeded without mentioning or providing team members with information. Some game testers addressed that the game was not that difficult and in another team the switching of tablet was a considerable issue, which influenced negative game experience on an individual level and resulted in minimal cooperation within the team. In field test three, new game mechanics were integrated and introduced to game testers as to improve cooperation (and to a lesser extent competition, hence it was evaluated based on the previous field tests that this game dynamic was working to expectations in line with the expectations and goals of the game). Results showed that sabotaging was again one of the top positively received game mechanics. The role of a bodyguard was implemented to safeguard that the game was played in a safe manner; hence tablet usage can lead to a decrease in situational awareness due to attention shift. However, all game testers were confused on the extra roles implemented in the game, given the initial role of ‘musician on tour’ and traffic participant. Furthermore, go pro results obtained showed that although interaction during game play is obvious, game related cooperation was mild. As in previous field tests, the improvement in theory did not match expectations on cooperation improvement; decisions and strategy for game play were mainly discussed among two players who were directly into contact with the tablet. The other team member(s) were seldom involved and often not aware of their status in the game. Traffic questions were mostly discussed together which influenced cooperation positively and promo actions were received as positive. A full analysis on the extensive audio and video data will be conducted as to evaluate how to optimize cooperation and competition considering the hourglass social framework in a location-based serious game

Evaluation of the game development process of a location-based mobile game

There is a growing interest of government bodies and NGOs in using (serious) video games in awareness campaigns. Until now, however, little was known on how to set up such a campaign so as to effectively cater to the needs of different stakeholders including the target audience. Hence designing, developing and translating a game for educational purposes whilst balancing between fun and learning is a complex process, this paper aims to evaluate this by presenting a methodological framework for involving stakeholders in the design and development of a game-based awareness campaign based on a user-centered software design methodology and assesses its effectiveness in a concrete use case: the development of the location-based mobile game City Jam. The goal was to develop a game-based road safety campaign to confront adolescents with road traffic situations with the aim to positively influence road safety attitude and behavior. Mobile technologies offer new opportunities to embed digital game based learning by in different contexts. Given the nature of the road safety campaign, a location-based game format was chosen, aiming to facilitate learning by means of an extended three-way interaction (human interaction, game and context). Different user-centered design methods were deployed throughout several phases of the game development process: In phase one (the opportunity identification) a literature review was performed to investigate relevant fields for the game’s goal. In phase two (the game concept development) expert interviews and a focus groups were conducted with relevant stakeholders and in phase three (the game concept design) co-design sessions and a focus group resulted in a game design document. In phase four (game development and testing) the beta version of City jam was developed and tested in an iterative field testing design and resulted in the final game. Results obtained throughout the game development process provided us the opportunity to evaluate several major aspects. Firstly the impact of stakeholder involvement on the different phases of the design process and the final product resulted in a game that was tailored to the preferences and needs of the target group. Secondly translating the game concept into practice, such as game elements, proposed educational game elements, were evaluated based on the usability, playability principles and social and technological aspects. Benefits and challenges of user-centered design methods are discussed and how budget constraints and differing desired outcomes of different stakeholders challenge but also enrich the process

Novel Low Power and Low Transistor Count Flip-Flop Design with High Performance

The paper proposed a new design of static SET flip-flop for low power applications. In this work, comparative analysis of existing architecture for flip-flops along with the proposed design is made. The comparison is done on the basis of power and power delay product, transistor count is also included. Due to continuous increase in integration of transistors and growing needs of portable equipments, low power design is of prime importance. The proposed design has the best power and the second best PDP than the existing architectures. Proposed FF has the least transistor count hence reducing the manufacturing cost and area. All simulations are performed on TSpice using BSIM models in 130 nm process node. The simulation results show that for all supply voltages, proposed FF has the best power consumption, second best PDP and the lowest transistor count. So this design is best suited for low power and high performance portable applications. Keywords: Transmission Gate, Short circuit current, Edge Triggered, Optimizatio

A New Area and Power Efficient Single Edge Triggered Flip-Flop Structure for Low Data Activity and High Frequency Applications

In this work, a new area and power efficient single edge triggered flip-flop has been proposed. The proposed design is compared with six existing flip-flop designs. In the proposed design, the number of transistors is reduced to decrease the area. The number of clocked transistors of the devised flip-flop is also reduced to minimize the power consumption. As compared to the other state of the art single edge triggered flip-flop designs, the newly proposed design is the best energy efficient with the comparable power delay product (PDP) having an improvement of up to 61.53% in view of power consumption. The proposed flip-flop also has the lowest transistor count and the lowest area. The simulation results show that the proposed flip-flop is best suited for low power and low area systems especially for low data activity and high frequency applications. Keywords: PDP, reliability, delay, process node, clock frequenc

Trends in undergraduate teaching of parasitology in medical schools of Pakistan

OBJECTIVE: Parasitic diseases are a major public health problem in the tropical and sub tropical countries including the subcontinent region. We aimed to assess methods of Parasitology education in medical schools of Karachi Pakistan. METHODS: Ten medical schools in Karachi, Pakistan were sent a structured questionnaire collecting information on different aspects of Parasitology education. The collected data was analyzed using SPSS version 14.0. RESULTS: The response rate of this study was 90%. Majority of the schools in Karachi, Pakistan (78%) taught Parasitology concurrently with Microbiology, Pathology, Pharmacology and Forensic medicine in third and fourth year of undergraduate training. More than 20 hours were spent on teaching through didactic lectures (56%), interactive lectures (22%), problem based learning (PBL) (22%), clinical cases (11%) and small group discussions (89%). A Clinical Microbiologist or Parasitologist taught Parasitology by using transparencies, handouts and/or computer aids. Variation in education methods existed mainly in the private medical schools. CONCLUSION: Medical curricula were meeting the European standards for teaching of Parasitology. However, there is a need for revision and modification in the curricula owing to the high burden of parasitic diseases in the subcontinent region

Efficacy and safety of quinine loading dose in patients with severe falciparum malaria at a tertiary care hospital in Pakistan

OBJECTIVE: To compare the clinical outcomes of a loading dose regimen of quinine with a uniform dose regimen in patients with severe falciparum malaria. METHODS: A retrospective chart review of 315 patients admitted with severe falciparum malaria and treated with quinine at a tertiary care teaching hospital of Karachi, Pakistan during 1999-2006 was conducted. Group A with 103 patients (32.7%) was given an initial loading dose of quinine while group B with 212 patients (67.3%) did not receive the loading dose. The two groups were compared in terms of reduction of parasite load, resolution of fever, recovery of consciousness and incidence of adverse effects. Outcome parameters were measured on the third day of therapy. RESULTS: More individuals in group A (62.1%) were afebrile as compared to group B (54.7%) at day 3 of therapy. Patients in group B showed greater reduction in parasitaemia (47.2% at baseline to 4.7% on day 3) as compared to group A (56.3 % at baseline to 9.7% on day 3). Following therapy, fewer patients in group B had altered consciousness (7.1% at baseline to 4.7% on day 3) as compared to patients in group A (7.8% at baseline to 5.8% on day 3). However, these associations were not statistically significant. The incidence of thrombocytopenia was higher in Group A (5.8%) as compared to Group B (0.9%). CONCLUSION: Although quinine loading dose may be more effective than uniform dose in rapid fever clearance; it also appears to be associated with higher toxicity. Uniform dose of quinine may be prescribed in severe falciparum malaria in view of its better safety profile

Pulmonary delivery of Nanocomposite Microparticles (NCMPs) incorporating miR-146a for treatment of COPD.

The treatment and management of COPD by inhalation to the lungs has emerged as an attractive alternative route to oral dosing due to higher concentrations of the drug being administered to site of action. In this study, Nanocomposite Microparticles (NCMPs) of microRNA (miR-146a) containing PGA-co-PDL nanoparticles (NPs) for dry powder inhalation were formulated using l-leucine and mannitol. The spray-drying (Buchi B290) process was optimised and used to incorporate NPs into NCMPs using mix of l-leucine and mannitol excipients in different ratios (F1; 100:0% w/w, F2; 75:25% w/w, F3; 50:50% w/w, F4; 25:75% w/w, F5; 0:100% w/w) to investigate yield %, moisture content, aerosolisation performance and miR-146a biological activity. The optimum condition was performed at feed rate 0.5 ml/min, aspirator rate 28 m3/h, atomizing air flow rate 480 L/h, and inlet drying temperature 70 °C which produced highest yield percentage and closest recovered NPs size to original prior spray-drying. The optimum formulation (F4) had a high yield (86.0 ± 15.01%), recovered NPs size after spray-drying 409.7 ± 10.05 nm (initial NPs size 244.8 ± 4.40 nm) and low moisture content (2.02 ± 0.03%). The aerosolisation performance showed high Fine Particle Fraction (FPF) 51.33 ± 2.9%, Emitted Dose (ED) of 81.81 ± 3.0%, and the mass median aerodynamic diameter (MMAD) was ≤5 µm suggesting a deposition in the respirable region of the lungs. The biological activity of miR-146a was preserved after spray-drying process and miR-146a loaded NCMPs produced target genes IRAK1 and TRAF6 silencing. These results indicate the optimal process parameters for the preparation of NCMPs of miR-146a-containing PGA-co-PDL NPs suitable for inhalation in the treatment and management of COPD

Population and fertility by age and sex for 195 countries and territories, 1950–2017: a systematic analysis for the Global Burden of Disease Study 2017

Background: Population estimates underpin demographic and epidemiological research and are used to track progress on numerous international indicators of health and development. To date, internationally available estimates of population and fertility, although useful, have not been produced with transparent and replicable methods and do not use standardised estimates of mortality. We present single-calendar year and single-year of age estimates of fertility and population by sex with standardised and replicable methods. Methods: We estimated population in 195 locations by single year of age and single calendar year from 1950 to 2017 with standardised and replicable methods. We based the estimates on the demographic balancing equation, with inputs of fertility, mortality, population, and migration data. Fertility data came from 7817 location-years of vital registration data, 429 surveys reporting complete birth histories, and 977 surveys and censuses reporting summary birth histories. We estimated age-specific fertility rates (ASFRs; the annual number of livebirths to women of a specified age group per 1000 women in that age group) by use of spatiotemporal Gaussian process regression and used the ASFRs to estimate total fertility rates (TFRs; the average number of children a woman would bear if she survived through the end of the reproductive age span [age 10–54 years] and experienced at each age a particular set of ASFRs observed in the year of interest). Because of sparse data, fertility at ages 10–14 years and 50–54 years was estimated from data on fertility in women aged 15–19 years and 45–49 years, through use of linear regression. Age-specific mortality data came from the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2017 estimates. Data on population came from 1257 censuses and 761 population registry location-years and were adjusted for underenumeration and age misreporting with standard demographic methods. Migration was estimated with the GBD Bayesian demographic balancing model, after incorporating information about refugee migration into the model prior. Final population estimates used the cohort-component method of population projection, with inputs of fertility, mortality, and migration data. Population uncertainty was estimated by use of out-of-sample predictive validity testing. With these data, we estimated the trends in population by age and sex and in fertility by age between 1950 and 2017 in 195 countries and territories. Findings: From 1950 to 2017, TFRs decreased by 49\ub74% (95% uncertainty interval [UI] 46\ub74–52\ub70). The TFR decreased from 4\ub77 livebirths (4\ub75–4\ub79) to 2\ub74 livebirths (2\ub72–2\ub75), and the ASFR of mothers aged 10–19 years decreased from 37 livebirths (34–40) to 22 livebirths (19–24) per 1000 women. Despite reductions in the TFR, the global population has been increasing by an average of 83\ub78 million people per year since 1985. The global population increased by 197\ub72% (193\ub73–200\ub78) since 1950, from 2\ub76 billion (2\ub75–2\ub76) to 7\ub76 billion (7\ub74–7\ub79) people in 2017; much of this increase was in the proportion of the global population in south Asia and sub-Saharan Africa. The global annual rate of population growth increased between 1950 and 1964, when it peaked at 2\ub70%; this rate then remained nearly constant until 1970 and then decreased to 1\ub71% in 2017. Population growth rates in the southeast Asia, east Asia, and Oceania GBD super-region decreased from 2\ub75% in 1963 to 0\ub77% in 2017, whereas in sub-Saharan Africa, population growth rates were almost at the highest reported levels ever in 2017, when they were at 2\ub77%. The global average age increased from 26\ub76 years in 1950 to 32\ub71 years in 2017, and the proportion of the population that is of working age (age 15–64 years) increased from 59\ub79% to 65\ub73%. At the national level, the TFR decreased in all countries and territories between 1950 and 2017; in 2017, TFRs ranged from a low of 1\ub70 livebirths (95% UI 0\ub79–1\ub72) in Cyprus to a high of 7\ub71 livebirths (6\ub78–7\ub74) in Niger. The TFR under age 25 years (TFU25; number of livebirths expected by age 25 years for a hypothetical woman who survived the age group and was exposed to current ASFRs) in 2017 ranged from 0\ub708 livebirths (0\ub707–0\ub709) in South Korea to 2\ub74 livebirths (2\ub72–2\ub76) in Niger, and the TFR over age 30 years (TFO30; number of livebirths expected for a hypothetical woman ageing from 30 to 54 years who survived the age group and was exposed to current ASFRs) ranged from a low of 0\ub73 livebirths (0\ub73–0\ub74) in Puerto Rico to a high of 3\ub71 livebirths (3\ub70–3\ub72) in Niger. TFO30 was higher than TFU25 in 145 countries and territories in 2017. 33 countries had a negative population growth rate from 2010 to 2017, most of which were located in central, eastern, and western Europe, whereas population growth rates of more than 2\ub70% were seen in 33 of 46 countries in sub-Saharan Africa. In 2017, less than 65% of the national population was of working age in 12 of 34 high-income countries, and less than 50% of the national population was of working age in Mali, Chad, and Niger. Interpretation: Population trends create demographic dividends and headwinds (ie, economic benefits and detriments) that affect national economies and determine national planning needs. Although TFRs are decreasing, the global population continues to grow as mortality declines, with diverse patterns at the national level and across age groups. To our knowledge, this is the first study to provide transparent and replicable estimates of population and fertility, which can be used to inform decision making and to monitor progress. Funding: Bill &amp; Melinda Gates Foundation