scholarly journals A Review of Modelling and Simulation Methods for Flashover Prediction in Confined Space Fires

2020 ◽  
Vol 10 (16) ◽  
pp. 5609
Author(s):  
Daniel Cortés ◽  
David Gil ◽  
Jorge Azorín ◽  
Florian Vandecasteele ◽  
Steven Verstockt
Keyword(s):  
Modelling And Simulation ◽  
Simulation Methods ◽  
Confined Space ◽  
Review Of The Literature ◽  
Related Literature ◽  
New Methods ◽  
Simulation Techniques ◽  
Thermal Cameras ◽  
Life Threatening ◽  
Enclosure Size

Confined space fires are common emergencies in our society. Enclosure size, ventilation, or type and quantity of fuel involved are factors that determine the fire evolution in these situations. In some cases, favourable conditions may give rise to a flashover phenomenon. However, the difficulty of handling this complicated emergency through fire services can have fatal consequences for their staff. Therefore, there is a huge demand for new methods and technologies to tackle this life-threatening emergency. Modelling and simulation techniques have been adopted to conduct research due to the complexity of obtaining a real cases database related to this phenomenon. In this paper, a review of the literature related to the modelling and simulation of enclosure fires with respect to the flashover phenomenon is carried out. Furthermore, the related literature for comparing images from thermal cameras with computed images is reviewed. Finally, the suitability of artificial intelligence (AI) techniques for flashover prediction in enclosed spaces is also surveyed.

A Review of Simulation Methods of Laser Matter Interactions Focused on Nanosecond Laser Pulsed Systems

2013 ◽  
Vol 05 (04) ◽  
pp. 1330001 ◽  
Author(s):  
E. Kaselouris ◽  
I. K. Nikolos ◽  
Y. Orphanos ◽  
E. Bakarezos ◽  
N. A. Papadogiannis ◽  
...  
Keyword(s):  
Laser Excitation ◽  
Pulsed Laser ◽  
Solid Metal ◽  
Modelling And Simulation ◽  
Nanosecond Laser ◽  
Simulation Methods ◽  
Simulation Techniques ◽  
Interaction Simulation ◽  
Review Study

A review study of the developments in the field of pulsed laser-solid interaction simulation methods, for moderate laser energies, is presented. The paper is focused on the methods that numerically simulate the interactions of pulsed ns-laser with solid metal targets. Three main regimes for pulsed laser excitation, are well established, namely, the thermoelastic, melting and plasma regimes. The modelling and simulation techniques that may numerically describe these three regimes and the occurring dynamic matter responses are reviewed. Modelling efforts concerning various fields of applications of lasers are briefly discussed.

The Evolution of Lead Extraction

2009 ◽  
Vol 5 (1) ◽  
pp. 32
Author(s):  
Melanie Maytin ◽  
Laurence M Epstein ◽  
◽  
Keyword(s):  
Natural Selection ◽  
Lead Extraction ◽  
Significant Morbidity ◽  
Extraction Techniques ◽  
Extraction Technology ◽  
Device Management ◽  
Future Developments ◽  
The Past ◽  
New Methods ◽  
Life Threatening

Prior to the introduction of successful intravascular countertraction techniques, options for lead extraction were limited and dedicated tools were non-existent. The significant morbidity and mortality associated with these early extraction techniques limited their application to life-threatening situations such as infection and sepsis. The past 30 years have witnessed significant advances in lead extraction technology, resulting in safer and more efficacious techniques and tools. This evolution occurred out of necessity, similar to the pressure of natural selection weeding out the ineffective and highly morbid techniques while fostering the development of safe, successful and more simple methods. Future developments in lead extraction are likely to focus on new tools that will allow us to provide comprehensive device management and the design of new leads conceived to facilitate future extraction. With the development of these new methods and novel tools, the technique of lead extraction will continue to require operators that are well versed in several methods of extraction. Garnering new skills while remembering the lessons of the past will enable extraction technologies to advance without repeating previous mistakes.

scholarly journals Prevention and management of major complications in percutaneous endoscopic gastrostomy

2021 ◽  
Vol 8 (1) ◽  
pp. e000628
Author(s):  
Kurt Boeykens ◽  
Ivo Duysburgh
Keyword(s):  
Clinical Practice ◽  
Abdominal Wall ◽  
Percutaneous Endoscopic Gastrostomy ◽  
Early Recognition ◽  
Endoscopic Technique ◽  
Abdominal Wound ◽  
Review Of The Literature ◽  
Endoscopic Gastrostomy ◽  
Major Complications ◽  
Life Threatening

BackgroundPercutaneousendoscopic gastrostomy is a commonly used endoscopic technique where a tube isplaced through the abdominal wall mainly to administer fluids, drugs and/orenteral nutrition. Several placement techniques are described in the literaturewith the ‘pull’ technique (Ponsky-Gardener) as the most popular one.Independent of the method used, placement includes a ‘blind’ perforation of thestomach through a small acute surgical abdominal wound. It is a generally safetechnique with only few major complications. Nevertheless these complicationscan be sometimes life-threatening or generate serious morbidity.MethodAnarrative review of the literature of major complications in percutaneousendoscopic gastrostomy.ResultsThis review was written from a clinical viewpoint focussing on prevention andmanagement of major complications and documentedscientific evidence with real cases from more than 20 years of clinical practice.ConclusionsMajorcomplications are rare but prevention, early recognition and popper management areimportant.

scholarly journals A Review of Biophysiological and Biochemical Indicators of Stress for Connected and Preventive Healthcare

Diagnostics ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 556
Author(s):  
Talha Iqbal ◽  
Adnan Elahi ◽  
Pau Redon ◽  
Patricia Vazquez ◽  
William Wijns ◽  
...  
Keyword(s):  
Cardiovascular Events ◽  
Medical Conditions ◽  
Review Of The Literature ◽  
Stress Monitoring ◽  
Preventive Healthcare ◽  
Connected Health ◽  
Root Cause ◽  
Chemical Indicators ◽  
Life Threatening ◽  
Assessment Of Stress

Stress is a known contributor to several life-threatening medical conditions and a risk factor for triggering acute cardiovascular events, as well as a root cause of several social problems. The burden of stress is increasing globally and, with that, is the interest in developing effective stress-monitoring solutions for preventive and connected health, particularly with the help of wearable sensing technologies. The recent development of miniaturized and flexible biosensors has enabled the development of connected wearable solutions to monitor stress and intervene in time to prevent the progression of stress-induced medical conditions. This paper presents a review of the literature on different physiological and chemical indicators of stress, which are commonly used for quantitative assessment of stress, and the associated sensing technologies.

scholarly journals Basal cell carcinoma‑not always the ‘good guy’: Case report of a life‑threatening basosquamous carcinoma and review of the literature

2021 ◽  
Vol 22 (4) ◽  
Author(s):  
Cornel Petreanu ◽  
Elena-Daniela Șerban ◽  
Maria-Magdalena Constantin ◽  
Cornel Savu ◽  
Alexandru Zariosu ◽  
...  
Keyword(s):  
Case Report ◽  
Basal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Basal Cell ◽  
Review Of The Literature ◽  
Life Threatening

scholarly journals Osteogenesis Imperfecta and Extra-/Intradural Hematomas: A Case Report and Review of the Literature

2018 ◽  
Vol 07 (04) ◽  
pp. 185-190
Author(s):  
Emrah Celtikci ◽  
Onur Ozgural ◽  
Umit Eroglu ◽  
Yusuf Caglar ◽  
Fatih Yakar
Keyword(s):  
Osteogenesis Imperfecta ◽  
Epidural Hematoma ◽  
Skull Fracture ◽  
Bleeding Diathesis ◽  
Review Of The Literature ◽  
Life Threatening ◽  
Brittle Bone Disease ◽  
Platelet Defects ◽  
Threatening Situation ◽  
Management Challenge

AbstractOsteogenesis imperfecta, also named as brittle bone disease, is characterized by fragile bones and short stature caused by mutations in the collagen gene. Subdural and intraparenchymal hematomas are defined and associated with trauma, vascular causes, and systemic bleeding diathesis. Skull fragility may lead to epidural hematoma, which is a life-threatening situation. Vascular fragility and intrinsic platelet defects are the causes of bleeding in patients with osteogenesis imperfecta, which is a major management challenge for neurosurgeons. Here, we reported on a 5-year-old boy with osteogenesis imperfecta with epidural hematoma and skull fracture following a trivial trauma, and made a literature review of 28 cases with extra-/intradural hematoma.

Thoracic Transillumination: Aid in the Diagnosis and Treatment of Pneumopericardium

PEDIATRICS ◽  
1979 ◽  
Vol 64 (6) ◽  
pp. 958-960 ◽  
Author(s):  
Eresvita E. Cabatu ◽  
Edwin G. Brown
Keyword(s):  
Mechanical Ventilation ◽  
Continuous Positive Airway Pressure ◽  
Airway Pressure ◽  
Positive Airway Pressure ◽  
Hyaline Membrane Disease ◽  
Pericardial Tamponade ◽  
Review Of The Literature ◽  
Air Leak ◽  
Hyaline Membrane ◽  
Life Threatening

A frequent complication of continuous positive airway pressure and mechanical ventilation used to treat neonates who have hyaline membrane disease and other forms of respiratory distress is an air leak from alveolar rupture. Pneumothorax and pneumomediastinum are common. Pneumopericardium does not occur often, but it can be life-threatening if it produces acute cardiac tamponade. In a review of the literature, Brans and associates1 found that pneumopericardium in neonates was treated by pericardiocentesis in one half of the published cases; 79% of them survived or they ultimately died of complications unrelated to pericardial tamponade. However, only 32% of the infants treated conservatively survived.

Fluoropyrimidine-induced toxicity and DPD deficiency.. A case report of early onset, lethal capecitabine-induced toxicity and mini review of the literature. Uridine triacetate: Efficacy and safety as an antidote. Is it accessible outside USA?

2019 ◽  
Vol 26 (3) ◽  
pp. 747-753 ◽  
Author(s):  
Dimitra Ioanna Lampropoulou ◽  
Konstantinos Laschos ◽  
Anna-Lea Amylidi ◽  
Ariadni Angelaki ◽  
Nikolaos Soupos ◽  
...  
Keyword(s):  
Early Onset ◽  
Dehydrogenase Deficiency ◽  
Colorectal Cancer Patient ◽  
Dihydropyrimidine Dehydrogenase ◽  
Efficacy And Safety ◽  
Review Of The Literature ◽  
Time Restrictions ◽  
Timely Access ◽  
Life Threatening ◽  
Chemotherapy Dose

Fluoropyrimidine-based regimens are among the most commonly used chemotherapy combinations for the treatment of solid tumors. Several genetic polymorphisms that are implicated with fluoropyrimidine anabolism and catabolism have been associated with the development of life-threatening toxicities. Uridine triacetate is an FDA-approved antidote for 5-fluorouracil or capecitabine overdose and early-onset, life-threatening toxicity within 96 h of last chemotherapy dose. To date, it is not accessible for Greek patients as per the current summary of product characteristic's time restrictions. We report and discuss the course and outcome of capecitabine toxicity in a 66-year-old female colorectal cancer patient with heterozygous dihydropyrimidine dehydrogenase deficiency. This paper highlights the difficulty in timely access of this lifesaving medication for Greek and possibly other European patients.

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