Project Life Research Articles

Optimisation of an On-grid Hybrid Energy System: A Case Study of the Main Campus of the University of Abuja, Nigeria

The challenge of meeting the energy demands of institutions and organisations in an economically viable and environmentally friendly manner is becoming more and more complex especially in developing countries like Nigeria. This work presents a resilient hybrid renewable energy system to supply the electric power requirement of the main campus of the University of Abuja, Nigeria, estimated as 900 kW at a consumption rate of 6300 kWh/day. HOMER software was used as the modelling tool for simulations, optimizations, and sensitivity analyses carried out to explore the feasibility of utilizing Abuja’s (MSW) in hybrid with the mini hydro power potential of River Wuye and solar PV resources to meet the load demand of the campus. The hybrid plant has the following component specifications:hydro resourcenominal flow rate is 14.5 m3/s; maximum head is 10 m and potential capacity is 885 kW;MSW plant specifications were determined to be 500 kW capacity, waste treatment of 2.3 ton/day; lower calorific value for MSW of 15.84 MJ/kg with the solar PV component having a capacity of 500 kW. Total installation cost for the hybrid plant for the 2 MW hybrid plant was determined to be ₦5.44 billion (US$7.225 million) with annual energy generation calculated to be 799,000 kWh/yr. The net present cost for the simulated system was found to be ₦ 9.37 billion ($12,486,120) with the corresponding LCOE being ₦55.2/kWh ($0.0736/kWh). The carbon emission was estimated to be 7.33 g per day which approximates to a net zero emission, demonstrating the environmental friendliness of renewable energy sources utilised. Sensitivity analysis performed on the system using project life span, inflation rate, solar irradiance, MSW’s lower heating value (LHV), capacity shortage and the annual average volumetric flow rate of River Wuye showed that the net present cost increased with increasing plant life while the levelized cost of energy reduces with increasing life from ₦55.02/kWh for plant life of 25 years to ₦43.73/kWh for 30 years.

Practicalities of Incorporating 3D Laser Scanning with BIM in Live Construction Projects: A Case Study

The integration of laser scanning technology and Building Information Modelling (BIM) processes offers a transformative approach to managing the complexities in live construction projects. This paper aims to explore the significant impacts of incorporating laser scanning and BIM on construction projects in terms of as-built models, information management, and overall project performance utilising case study analysis of a building that was not BIM-based. The research scope is defined by the need to investigate the integration of laser scanning and BIM in live construction projects. It details the data acquisition process, challenges encountered due to site obstructions, and the methodologies employed for spatial modelling procedures. Key findings reveal that such integration can significantly enhance the accuracy of data collection and improve project outcomes. Results also identify the need for specialised equipment and skills for the effective implementation of such integrations. The research concludes by offering a practical approach to enhancing construction processes, from design to maintenance. This paper contributes to the body of knowledge by providing a detailed analysis of the practical application of laser scanning and BIM in a live construction project, offering insights into the benefits, challenges, and future directions for integrating these technologies in the construction industry.

Sustainability Analysis of Community-Managed Rural Water Supply Project: A Case Study of Kaski District

After the 1992 International Conference on Water and the Environment in Dublin, a new approach to rural water supply was adopted being that the water should be managed at the lowest appropriate level, with users involved in the planning and implementation of projects. As per the data of DWSSM (2019) even though the basic level water supply coverage of Nepal is 87.22% among the water supply schemes providing service to the people only 28.13% of the schemes are fully functional. The lack of functionality questions the investment of different agencies as projects do not operate throughout project life and the public are facing the problem of not getting safe and reliable water. The main aim of this study was to assess the post-construction status of these projects in relation to their sustainable management. For this, six water supply projects completed over the last five years have been studied. During the study, the data was collected from the structured questionnaire, focal group discussion, Key informants’ interviews and field observations. These water supply projects were evaluated based on five main criteria namely economic, technical, social, institutional, and environmental factors. From the study it is observed that the sustainability score of Syaude Lifting WSP is 62.82%, Serokhola WSP is 66.74%, Lumre WSP is 64.25%, Sudame WSP is 54.97%, Bhachok WSP is 63.74% and Chisapani WSP is 76.90%. The economic and technical aspect of sustainability is found poor in all of these water supply projects. The major problem faced by the community is the lack of financial resources and technical capacity-building programs in the construction stage which have ultimately hampered the project's sustainability. Post-construction training, technical and capacity-building training, support policies and programs are important requirements for the sustainable development of rural water supply systems.

Global pattern, trend, and cross-country inequality of early musculoskeletal disorders from 1990 to 2019, with projection from 2020 to 2050

This study aims to estimate the burden, trends, forecasts, and disparities of early musculoskeletal (MSK) disorders among individuals ages 15 to 39 years. The global prevalence, years lived with disabilities (YLDs), disability-adjusted life years (DALYs), projection, and inequality were estimated for early MSK diseases, including rheumatoid arthritis (RA), osteoarthritis (OA), low back pain (LBP), neck pain (NP), gout, and other MSK diseases (OMSKDs). More adolescents and young adults were expected to develop MSK disorders by 2050. Across five age groups, the rates of prevalence, YLDs, and DALYs for RA, NP, LBP, gout, and OMSKDs sharply increased from ages 15-19 to 35-39; however, these were negligible for OA before age 30 but increased notably at ages 30-34, rising at least 6-fold by 35-39. The disease burden of gout, LBP, and OA attributable to high BMI and gout attributable to kidney dysfunction increased, while the contribution of smoking to LBP and RA and occupational ergonomic factors to LBP decreased. Between 1990 and 2019, the slope index of inequality increased for six MSK disorders, and the relative concentration index increased for gout, NP, OA, and OMSKDs but decreased for LBP and RA. Multilevel interventions should be initiated to prevent disease burden related to RA, NP, LBP, gout, and OMSKDs among individuals ages 15-19 and to OA among individuals ages 30-34 to tightly control high BMI and kidney dysfunction. The Global Burden of Disease study is funded by the Bill and Melinda Gates Foundation. The project is funded by the Scientific Research Fund of Sichuan Academy of Medical Sciences& Sichuan Provincial People's Hospital (2022QN38).

Comparative analysis of Weibull parameters estimation for wind power potential assessments

There are many renewable energy sources available, especially wind energy, but it is not being fully utilized. In the wind energy industry, Wind Power Potential (WPP) is essential since it is critical to the development, operation, and optimization of wind power plants. WPP plays a significant role in the wind energy project life cycle, impacting site selection, project viability, technology choices, and ultimate success. This means that specific WPP for certain places need to be determined for development in wind industry.The goal of this study is to conduct a statistical comparison and analysis of the efficacy of various numerical methods, including the method of moments (MoM), the energy pattern factor method (EPFM), the maximum likelihood method (MLM), the energy density method (EDM), the energy pattern factor method of Sathyajith (EPFMS), Rayleigh's distribution (Rayl), and the novel energy pattern factor method (NEPFM). These methods are compared for different sites of Andhra Pradesh India. The NEPFM is considered the most effective approach for assessing the wind energy density in the regions of Visakhapatnam, Amaravati, and Tirupati. Conversely, the MLM (Modified Logarithmic Model) technique has demonstrated superior performance in evaluating the wind energy potential specifically for the Rajamahendravaram site. The Rayleigh distribution, also known as Rayl., was utilized as the primary approach for calculating the probability density of the geographical sites of Visakhapatnam, Rajamahendravaram, and Amaravati. Additionally, the energy pattern factor method was employed to analyze the site of Tirupati. The Rayleigh distribution is found to be the most suitable statistical model for estimating the cumulative density of site locations in Visakhapatnam and Amaravati. Similarly, the innovative energy pattern factor technique is recommended for analyzing the cumulative density of site locations in Rajamahendravaram and Tirupati.

Risk factors and prediction of hypoglycaemia using the Hypo-RESOLVE cohort: a secondary analysis of pooled data from insulin clinical trials

Aims/hypothesisThe objective of the Hypoglycaemia REdefining SOLutions for better liVES (Hypo-RESOLVE) project is to use a dataset of pooled clinical trials across pharmaceutical and device companies in people with type 1 or type 2 diabetes to examine factors associated with incident hypoglycaemia events and to quantify the prediction of these events.MethodsData from 90 trials with 46,254 participants were pooled. Analyses were done for type 1 and type 2 diabetes separately. Poisson mixed models, adjusted for age, sex, diabetes duration and trial identifier were fitted to assess the association of clinical variables with hypoglycaemia event counts. Tree-based gradient-boosting algorithms (XGBoost) were fitted using training data and their predictive performance in terms of area under the receiver operating characteristic curve (AUC) evaluated on test data. Baseline models including age, sex and diabetes duration were compared with models that further included a score of hypoglycaemia in the first 6 weeks from study entry, and full models that included further clinical variables. The relative predictive importance of each covariate was assessed using XGBoost’s importance procedure. Prediction across the entire trial duration for each trial (mean of 34.8 weeks for type 1 diabetes and 25.3 weeks for type 2 diabetes) was assessed.ResultsFor both type 1 and type 2 diabetes, variables associated with more frequent hypoglycaemia included female sex, white ethnicity, longer diabetes duration, treatment with human as opposed to analogue-only insulin, higher glucose variability, higher score for hypoglycaemia across the 6 week baseline period, lower BP, lower lipid levels and treatment with psychoactive drugs. Prediction of any hypoglycaemia event of any severity was greater than prediction of hypoglycaemia requiring assistance (level 3 hypoglycaemia), for which events were sparser. For prediction of level 1 or worse hypoglycaemia during the whole follow-up period, the AUC was 0.835 (95% CI 0.826, 0.844) in type 1 diabetes and 0.840 (95% CI 0.831, 0.848) in type 2 diabetes. For level 3 hypoglycaemia, the AUC was lower at 0.689 (95% CI 0.667, 0.712) for type 1 diabetes and 0.705 (95% CI 0.662, 0.748) for type 2 diabetes. Compared with the baseline models, almost all the improvement in prediction could be captured by the individual’s hypoglycaemia history, glucose variability and blood glucose over a 6 week baseline period.Conclusions/interpretationAlthough hypoglycaemia rates show large variation according to sociodemographic and clinical characteristics and treatment history, looking at a 6 week period of hypoglycaemia events and glucose measurements predicts future hypoglycaemia risk.Graphical

Reuse of Lithium Iron Phosphate (LiFePO4) Batteries from a Life Cycle Assessment Perspective: The Second-Life Case Study

As of 2035, the European Union has ratified the obligation to register only zero-emission cars, including ultra-low-emission vehicles (ULEVs). In this context, electric mobility fits in, which, however, presents the critical issue of the over-exploitation of critical raw materials (CRMs). An interesting solution to reduce this burden could be the so-called second life, in which batteries that are no longer able to guarantee high performance in vehicles are used for other applications that do not require high performance, such as so-called stationary systems, effectively avoiding new over-exploitation of resources. In this study, therefore, the environmental impacts of second-life lithium iron phosphate (LiFePO4) batteries are verified using a life cycle perspective, taking a second life project as a case study. The results show how, through the second life, GWP could be reduced by ‒5.06 × 101 kg CO2 eq/kWh, TEC by ‒3.79 × 100 kg 1.4 DCB eq/kWh, HNCT by ‒3.46 × 100 kg 1.4 DCB eq/kWh, ‒3.88 × 100 m2a crop eq/kWh, and ‒1.12 × 101 kg oil eq/kWh. It is further shown how second life is potentially preferable to other forms of recycling, such as hydrometallurgical and pyrometallurgical recycling, as it shows lower environmental impacts in all impact categories, with environmental benefits of, for example, ‒1.19 × 101 kg CO2 eq/kWh (compared to hydrometallurgical recycling) and ‒1.50 × 101 kg CO2 eq/kWh (pyrometallurgical recycling), ‒3.33 × 102 kg 1.4 DCB eq/kWh (hydrometallurgical), and ‒3.26 × 102 kg 1.4 DCB eq/kWh (pyrometallurgical), or ‒3.71 × 100 kg oil eq/kWh (hydrometallurgical) and ‒4.56 × 100 kg oil eq/kWh (pyrometallurgical). By extending the service life of spent batteries, it may therefore be possible to extract additional value while minimizing emissions and the over-exploitation of resources.

СОПОСТАВИТЕЛЬНЫЙ АНАЛИЗ ЖИЗНЕННОГО ЦИКЛА ОРГАНИЗАЦИИ ПО МОДЕЛИ И. АДИЗЕСА И ЖИЗНЕННОГО ЦИКЛА ПРОЕКТА В РАМКАХ ПРОЕКТНООРИЕНТИРОВАННОЙ МЕТОДОЛОГИИ УПРАВЛЕНИЯ

The relevance of the topic is determined by the existing conditions of transition of modern organizations to new management paradigms. World trends of project-oriented management are increasingly penetrating into domestic management practices. In domestic practice, the diversification of operational processes of the organization from projects faces difficulties in determining the intersection of the stages of the life cycle of the organization and the life cycle of the project, especially in the framework of strategic projects of the organization. Project-oriented management methodology is a modern means of ensuring a high level of competitiveness, but does not have sufficient understanding on the part of strategic and operational management of the organization. The greatest interest in this article is shown to the search for ways to form new approaches to the organization of project-oriented management in modern domestic organizations. Also, special attention is paid to the analysis of the current mechanisms of organization life cycle management of the organization and the project, based on the mechanism of combining the two approaches to management. The analysis of the application of the life cycle model of I. Adizes in the management of modern domestic organizations, as well as the analysis of the applicability of the traditional life cycle model of project management. The aim of the study is to identify ways to manage modern organizations by combining Adizes' life cycle model and the project life cycle model. The objectives of the study are reduced to the analysis of key factors contributing to the integration of the two approaches to the management of project-oriented organizations. Research results. The comparative analysis of the model of the life cycle of the organization I.Adizes and the model of the life cycle of the project is carried out. on the basis of results of the analysis of characteristics of stages of each of the models, proposals on use of the model of the life cycle of the project as a basic paradigm of management of the project-oriented organization as a whole are made. The problem of applicability of the proposed methodology is revealed, which requires practical confirmation and additional theoretical study.

Investigating the association between work family conflict (WFC) and generalized anxiety disorder (GAD) in an Australian community-based cohort study.

Difficulties managing work and family demands are common and have been found to be associated with stress and poor mental health. However, very few studies have examined Work Family Conflict (WFC) in connection with diagnosable anxiety disorders (and none with Australian representative data). The current study investigated whether high WFC was significantly associated with a diagnosis of Generalised Anxiety Disorder (GAD) after controlling for a broad range of socio-demographic contextual factors, related psychosocial job, family and individual characteristics, and prior anxiety symptom history. Data was analysed from an Australian population-based community cohort - the Personality and Total Health (PATH) Through Life project. Eligible participants (N = 1159) were employed full-time or part-time, with data collected by both online questionnaire and face-to-face interview. Presence of Generalised Anxiety Disorder (GAD) in the past 12-months was diagnosed by the GAD module in the Composite International Diagnostic Interview (CIDI) (based on DSM-IV criteria) and severe anxiety symptoms were measured using the Patient Health Questionnaire (PHQ) 7-item 'other anxiety' model. The findings consistently showed that those experiencing high WFC had higher odds of a GAD diagnosis (final adjusted model: CIDI: OR: 2.55, CI: 1.38-4.70) as well as clinical levels of anxiety symptoms (PHQ: OR:2.61, CI:1.44,4.72). This was the case after controlling for an extensive range of covariates. This is one of the first studies to show that WFC is associated with greater likelihood of GAD. The challenge of juggling both work and family can have far-reaching impacts - not just increasing distress broadly, but also potentially increasing the likelihood of clinically diagnosable anxiety.

To collaborate or not to collaborate: A transaction cost economics approach to construction contracts in public-private partnerships

Public-Private Partnerships (PPPs) are often seen as a cost-effective way of providing public infrastructure. However, mega-construction projects involve many hidden costs that arise during the project life cycle. These costs are known as transaction costs. This article investigates how a construction contract under a PPP can reduce transaction costs. Using Transaction Cost Economics (TCE), the article draws on empirical studies from six countries to identify four factors that affect transaction costs in construction contracts namely: (i) Concessionaire predictability, (ii) Contractor predictability, (iii) Project Management Efficiency, and (iv) Project Environment Uncertainty. Different types of construction contracts were comparatively analysed against the aforementioned four factors. The findings indicate that collaborative contracts are more likely to favourably address these four factors by lowering transaction costs compared to non-colloborative contracts. The article concludes that using collaborative contracts can make infrastructure PPPs more affordable than other public procurement methods.

Collaborative and life cycle-based project delivery for environmentally sustainable building construction: views of Finnish project professionals and building operation and maintenance experts

PurposeThe energy performance gap (EPG) in building construction has been one of the major barriers to the realization of environmental and economic sustainability in the built environment. Although there have been a few studies addressing this issue, studying this topic with a special focus on the project delivery process has been almost overlooked. Hence, this study aims to address the EPG in building construction through the lens of collaborative and life cycle-based project delivery.Design/methodology/approachIn order to realize the objective of this study, the development of a theoretical framework based on the literature review was followed by a qualitative study in which 21 semi-structured interviews were conducted with Finnish project professionals representing clients, design/planning experts, constructors and building operation/maintenance experts to explore their views on the topic under study.FindingsThe findings reveal the project delivery-related causes of EPG in building construction. Moreover, the obtained results present a collaborative and life cycle-based delivery model that integrates project and product (i.e. building) life cycles, and it is compatible with all types of contractual frameworks in building construction projects.Research limitations/implicationsAlthough the findings of this study significantly contribute to theory and practice in the field of collaborative and sustainable construction project delivery, it is acknowledged that these findings are based on Finnish professionals’ input, and expanding this research to other regions is a potential area for further studies. Moreover, the developed model, although validated in Finland, needs to be tested in a broader context as well to gain wider generalizability.Originality/valueThe obtained results reveal the significance and impact of collaborative and life cycle-based project development and delivery on the realization of environmentally sustainable building construction.

Enhancing collaboration and engagement using virtual reality within site safety planning

For construction managers’ effective collaboration, communication and engagement during safety planning is essential to improve on-site efficiency and reduce risks. While the use of virtual reality (VR) has gained increased global attention in the past decade, the documentation of practical applications during active construction projects in the UK remains underdeveloped. Specifically, this includes the use of VR within on-site construction logistics management processes and its potential impacts on multidisciplinary collaboration and engagement. This study aims to bridge this gap by exploring the use of VR during practical safety and plant logistics planning workshops to capture real-world examples. Collaborating with a UK-based construction contractor, this study collected qualitative data over a series of planning workshops during a live project, involving 15 site team members of varying disciplines. Data collection included direct observations and focus groups, with the data analysed using a hybrid thematic analysis method. The results provided evidence of effective and accurate plant logistics planning with working practical examples, indicating that the use of VR had a positive impact on interdisciplinary collaboration and engagement. The results showed that the inclusion of VR tools also encouraged knowledge transfer between project teams, which led to improved confidence and engagement when conducting planning activities.

A Sand Boil Database for Piping Risk Management in the Po River, Italy

Sand boil formation at the toe of river embankments is the typical manifestation of the initiation and progression of an internal erosion process known as backward erosion piping, which is recognized to be a major concern in many river systems worldwide. In Italy, more than 130 sand boils have been detected along the Po River, many of them experiencing recurrent reactivations during high-water events. In recent years, as part of the activities of the European project LIFE SandBoil, the Italian authority responsible for flood protection and flood damage reduction along the Po River has implemented a GIS-based web application to catalogue the sand boils observed in its operating area. The resulting database allows keeping records of a comprehensive and varied set of information, in terms of predisposing factors, initiation conditions and surface effects. Taking as a reference a well-documented cross-section of the Po River prone to piping, this paper describes the main features of this versatile and flexible tool, whose long-term aim is to support vulnerability studies and the development of risk maps against piping. The database, which might also accommodate data from different river basins, is thus meant to help in flood risk management, by suggesting priorities for the implementation of mitigation measures and allowing the monitoring of intervention effectiveness.

A Land Cover Change Detection Approach to Assess the Effectiveness of Conservation Projects: A Study Case on the EU-Funded LIFE Projects in São Miguel Island, Azores (2002–2021)

A Land Cover Change Detection Approach to Assess the Effectiveness of Conservation Projects: A Study Case on the EU-Funded LIFE Projects in São Miguel Island, Azores (2002–2021)

Promotion of Labor Insertion Through the Build Your Professional Career (CCP) Model: A Critical Qualitative Perspective for the Improvement of Professional and Life Projects

Advances in the development of the Reinvent Yourself project are presented, the purpose of which is to validate the CCP (Build your Professional Career) model for job improvement in the Autonomous Community of Andalusia in southern Spain. The CCP model is an integrative and inclusive proposal within the framework of professional career development. Through training in transversal competencies and career management, the CCP model aims to favor the processes of labor reintegration by responding to the needs that people present from a conscious and critical perspective. In this process, a qualitative perspective is prioritized because of what the model contributes to a person’s reflexivity, awareness, and self-determination. This article reflects on the potential of the model and of the critical qualitative methodology in processes of constructing identity and a professional career. The potential of the model and of the critical qualitative methodology to facilitate the processes of building a professional career is evidenced. This methodology and the tools used allow a greater social and personal impact in terms of equality and social justice.

The social life of climate projects

The social life of climate projects

Hierarchical SVM for Semantic Segmentation of 3D Point Clouds for Infrastructure Scenes

The incorporation of building information modeling (BIM) has brought about significant advancements in civil engineering, enhancing efficiency and sustainability across project life cycles. The utilization of advanced 3D point cloud technologies such as laser scanning extends the application of BIM, particularly in operations and maintenance, prompting the exploration of automated solutions for labor-intensive point cloud modeling. This paper presents a demonstration of supervised machine learning—specifically, a support vector machine—for the analysis and segmentation of 3D point clouds, which is a pivotal step in 3D modeling. The point cloud semantic segmentation workflow is extensively reviewed to encompass critical elements such as neighborhood selection, feature extraction, and feature selection, leading to the development of an optimized methodology for this process. Diverse strategies are implemented at each phase to enhance the overall workflow and ensure resilient results. The methodology is then evaluated using diverse datasets from infrastructure scenes of bridges and compared with state-of-the-art deep learning models. The findings highlight the effectiveness of supervised machine learning techniques at accurately segmenting 3D point clouds, outperforming deep learning models such as PointNet and PointNet++ with smaller training datasets. Through the implementation of advanced segmentation techniques, there is a partial reduction in the time required for 3D modeling of point clouds, thereby further enhancing the efficiency and effectiveness of the BIM process.

Telematic music transmission, resistance and touch

ABSTRACT This article retraces the history of telematic performance from early videophone experiments by the Electronic Café in the 1980s, through a series of ambitious digital art installations at museums like the Centre Pompidou. Onto this history, I map a series of netmusic projects I initiated in this period, from ISDN performances at the Sonar Festival to my installation Global String at Ars Electronica. This sets the context for collaborative online performances held during the COVID pandemic with artists like Paul Sermon and the Chicks on Speed. I finish by describing the Hybrid Live project connecting Goldsmiths and Iklectik Art Labs in London with Stanford University’s CCRMA and SFJazz in California. I describe the low latency audio transport used, the importance of audiovisual synchronisation and the computer vision abstractions resulting in a London-New York remote dance performance. By situating current work in these histories, and closely examining the qualities of the network necessary for the transmission of a sense of embodied experience – and therefore trust – we understand that network performance occurs in its own space, one distinct from physical co-presence.

Project management: hybrid approach for construction projects

This research aims to innovate in project management by demonstrating the benefits of implementing the Hybrid Project Management Methodology in construction projects. The construction industry operates in complex environments with high levels of change, making it essential to adapt management approaches accordingly. This study reveals that integrating Agile with Traditional Project Management Methodology enhances project execution by fostering flexibility, adaptation, continuous value delivery, motivation, effective Methods communications, and constant feedback throughout the project life cycle. Consequently, this integration leads to improved project outcomes and goal achievement. Furthermore, the research highlights the growing recognition among construction professionals of the importance of adopting methodologies that enhance their project management skills, demonstrating a pressing need for such approaches in the industry. Statistical validation confirms the appropriateness of applying the Hybrid Project Management Methodology in the construction sector, with a significant result of 3.903, indicating a high level of appropriateness.

Étude longitudinale des changements éprouvés par les civils exposés aux attentats de novembre 2015 à Paris

IntroductionFollowing the attacks of November 13, 2015, Santé Publique France set up an epidemiological survey. A first phase was carried out in 2016 then repeated in 2020, in order to understand the post-traumatic impact of the attacks. The survey consisted of closed and open-ended questions. We present here the analysis of the answers to the following open-ended questions: “Would you say that the attacks that your experienced has changed you in any way? Could you explain how?” We compare the answers given in 2016 and 2020. ObjectiveTo understand the individual impact of terrorist attacks on civilians between 2016 and 2020. MethodBased on a qualitative analysis, we compare the results at two different times and observe the evolution of these responses. The material is composed of short testimonials related to the question of interest and are processed by thematic analysis inspired by grounded theory. We analyze the responses from 2016 and 2020 independently, and then compare the emerging themes. ResultsThe results highlight the presence of symptoms associated with post-traumatic stress disorder, with symptoms of intrusion, persistent avoidance of stimuli associated with the traumatic event, altered cognition and mood changes in arousal and reactivity related to the traumatic event, significant suffering, and sometimes dissociative elements. Five years after the attacks, disorders are still present in some subjects. The most distressed ones present a profile with no projection into the future, living from day to day, sometimes associated with risky behaviors. The meaning of their existence eludes them. Another part of the respondents tries to find meaning in their lives. They are looking for new life projects. The process of transforming their individuality is underway. Finally, for others whose profiles appear in the 2020 testimonials, changes have been made, they have been able to mourn their past life, who they were, and overcome their trauma. They are resilient and, in some cases, show psychic functioning suggestive of post-traumatic growth. ConclusionThe psychological impact of terrorist attacks on civilians is still very much present with important suffering, but some form of adaptation in the form of resilience or even post-traumatic growth is underway for some five years after the November 2015 attacks.