Scene construction of nano particle system based on virtual technology

In view of the problems in traditional 3D scene simulation, such as the poor simulation effect and the inability to really feel the scene, this paper proposes the research of nano particle system scene construction based on virtual technology. By analyzing the advantages of virtual reality technology, the role of virtual reality in three-dimensional scene is determined; the method of three-dimensional geometry transformation is used to determine the scene building algorithm of virtual technology; the concept of nano particle system hierarchy is introduced to build nano particle subsystem with object-oriented concept. The functions of the system are mainly divided into system control module, user interaction module, scene management module, and nanoparticles management module. Based on the analysis of virtual technology and the construction of nano particle system, the construction of nano particle system scene based on virtual technology is realized. The experimental results show that: Based on the virtual technology, the nano particle system scene construction effect is better, and the scene construction time is less than 6 min, the work efficiency is higher, the scene is more realistic, and has a certain feasibility.

Epidemiology and outcomes from severe hypoglycemia in Kuwait: a prospective cohort study

Background The objective of this study was to describe the epidemiology of severe hypoglycaemia in Kuwait, aiming to provide a preliminary background to update the current guidelines and improve patient management. Method This was a prospective analysis of severe hypoglycaemia cases retrieved from emergency medical services (EMS) archived data between 1 January and 30 June 2020. The severe hypoglycaemia cases were then sub-grouped based on EMS personal initial management and compared in terms of scene time, transportation rate, complications and outcomes. The primary outcomes were GCS within 10–30 min and normal random blood glucose (RBS) within 10–30 min. Results A total of 167 cases met the inclusion criteria. The incidence of severe hypoglycaemia in the national EMS was 11 per 100,000. Intramuscular glucagon was used on scene in 89% of the hypoglycaemic events. Most of the severe hypoglycaemia patients regained normal GCS on scene (76.5%). When we compared the two scene management strategies for severe hypoglycaemia cases, parenteral glucose administration prolonged the on-scene time (P = .002) but was associated with more favourable scene outcomes than intramuscular glucagon, with normal GCS within 10–30 min (P = .05) and normal RBS within 10–30 min (P = .006). Conclusion: Severe hypoglycaemia is not uncommon during EMS calls. Appropriate management by EMS personals is fruitful, resulting in favourable scene outcomes and reducing the hospital transportation rate. More research should be invested in improving and structuring the prehospital management of severe hypoglycaemia. One goal is to clarify the superiority of parenteral glucose over intramuscular glucagon in the prehospital setting.

Challenges of scene management in traffic collisions from the perspective of road emergency responders in East Azerbaijan, Iran

Introduction Thousands of traffic collisions occur each year on Iran’s roads. This study aimed to investigate the challenges of scene management in road traffic collisions in the East Azerbaijan Province of Iran. Methods Data were collected using in-depth semi-structured interviews and analysed by content coding and merging. Subcategories and themes were then extracted after integrating similar codes. Participants were selected using the purposive sampling method, and interviews continued until data saturation was reached. Results Twenty participants were interviewed; nine categories were extracted from the collected data: infrastructure problems, lack of responders’ preparedness, triage challenges, deficiencies and limitations, management of special (hazardous) incidents, communication problems with casualties, lack of coordination, lack of psychosocial support from responders, and cultural and social challenges. Conclusion Each traffic collision requires an immediate and effective response; however, this involves several challenges as its process is an inter-sectoral issue. The major challenge is the lack of coordination among different responders. Accordingly, these challenges need to be addressed by developing a comprehensive plan, designing a leading organisation, and developing a comprehensive trauma system.

Iranian’s healthcare system challenges during natural disasters: the qualitative case study of Kermanshah earthquake

Background In order to the significance of lessons learned from the natural disasters for health care systems particularly in developing and under-developed countries, the main purpose of this study was to identify challenges and limitations in light of the earthquake experience in Kermanshah Province. Methods The present study was conducted in 2019 as a qualitative research using content analysis method. In this regard, 19 key informants were selected using snowball sampling. To enhance the accuracy of the study, the four validation criteria for qualitative studies in data coding developed by Guba and Lincoln including credibility, transferability, dependability and confirmability were used. Data was analyzed applying Graneheim and Lundman (2004) approach for analyzing the qualitative content of an interview text. Results Analysis of the data led to the identification of 2 main themes, 5 sub- themes and 17 main categories. The first main theme was health system oriented challenges containing challenges of medication supply and preparation, structural challenges, challenges in crisis-scene management and challenges of service delivery and the second main theme was non-health system oriented challenges including social and psychosocial challenges. Conclusion According to the results, along with health system oriented challenges with the inter-sectoral or intra-sectoral nature, the non-health system oriented challenges the same as social, cultural and psychological factors can be considered as the major challenges of Iran’s healthcare system in the face of crises. This complicated context can shed the light to policy makers that not only attention to the medicine and medical equipment supply chain, manpower preparation and service delivery system can be considered as an emergency, but also careful attention to the structural challenges and crisis-scene management should be planned and considered as a priority. Besides, the policy makers and the local managers should try to plan and act in a contingent situation according to the social and cultural characteristics of the region and the psychological condition and the mental needs of the people.

Challenges of Scene Management in Traffic Collisions from the Perspective of Road Emergency Responders in East Azerbaijan, Iran, 2017

Background: Annually thousands of traffic collisions occur on the roads of Iran. The present study aimed to investigate the challenges of car crash Scene Management (SM) in East Azerbaijan, Iran.Methods: In this qualitative study, data were collected using in-depth semi-structured interviews with road accidents responders and analyzed using content analysis coding, and merging. Then, subcategories and themes were extracted from the integration of similar codes. The participants were selected using the purposive sampling method, and the interviews were continued until reaching data saturation.Results: Totally 20 participants were interviewed, out of which 167 challenges, 28 subcategories, and 9 themes were identified including: infrastructural problems, lack of preparedness, challenges of triage, deficiencies and limitations, management of special (hazardous) incidents, communication problems with the casualties, lack of coordination, lack of psychosocial support of responders, cultural and social challenges.Conclusion: Every road crash requires an immediate and effective response, but because this process is an inter-sectoral issue, it is faced with several challenges. The most important of them is the lack of coordination between different responders. Therefore, it is necessary to address these challenges by formulating a comprehensive plan, designating a lead organization, assigning a single phone number for requesting emergency services, eliminating deficiencies and shortcomings, training and empowerment of emergency staff and conducting participatory exercise.

3. Crime scene management and forensic investigation

‘Crime scene management and forensic investigation’ shows how the actions of investigating officers at a crime scene can affect the availability and efficacy of forensic tests later in the investigation. The purpose of crime scene management is to control, preserve, record, and recover evidence and intelligence from the scene of an incident in accordance with legal requirements and to appropriate professional and ethical standards. Any items removed from a scene by investigators must be packaged and labelled correctly to prevent contamination and minimize damage. Once forensic analysis begins, it is essential to consider the investigative implications of actions and decisions. It is sometimes more effective, quicker, or convenient to bring the specialist to the crime scene.