12 research outputs found

    Investigation of Foundation Failures

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    ABSTRACT Investigation of Foundation Failures Ali Buabbas Foundations form a very critical component of any structure. The integrity and lifespan of the structure are dependent on the strength and durability of the foundation. Under ideal conditions, immediately after the structure is constructed, the foundation meets all the requirements of the structure. However, after a while, due to the action of many other factors, the structure’s foundation may no longer satisfy the needs of the structure. Some of the factors contributing to the failure of the foundation can be due to natural events. Construction engineers should anticipate these factors to minimize their effects. Deep and shallow foundations exhibit different characteristics, making them experience slightly varying mechanisms of foundation failures. The characteristics of soil into which a foundation is constructed dictate the durability of the foundation. Soil which shows a higher bearing capacity, tends to offer a robust support to the foundation and makes it last longer. However, soil with undesirable characteristics such as low bearing capacity and a high-water level constantly jeopardizes a foundation\u27s integrity, triggering its failure. In this study, several foundation failures were studied, failures were identified, and remediation measures were reviewed wherever applicable. The case study of the Lake View Tower in Sudbury, Canada highlights how the poor soil bearing capacity contributed to the eventual demolition of the building. Natural calamities such as earthquakes and tornadoes also lead to foundation failure. Frost action on the Family Life Center (FLC) in North Dakota, United States affected the integrity of its foundation leading to cracks in the wall. Remediation of the foundation is one of the ways to mitigate the effects of vulnerable foundations. The success of any type of remediation is dependent on its ability to restore the needs of the structure whose foundation has weakened. Use of push piles in the FLC building shows how the remediation was beneficial in this case of shallow foundation

    The readiness of hospital pharmacists in Kuwait to practise evidence-based medicine: a cross-sectional study

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    Abstract Background The evolving role of pharmacists in providing pharmaceutical care, as part of the healthcare team, challenges them to acquire up-to-date knowledge of medicines to make the best clinical decisions. The volume of medical literature is on the increase, and it is important to utilise these resources to optimise patients’ therapeutic outcomes. This study aimed at assessing the readiness of government hospital pharmacists in practising evidence-based medicine (EBM) in Kuwait in regards to their attitude, knowledge and skills, as well as the perceived barriers and facilitators. Methods This descriptive cross-sectional study used pre-tested self-reported questionnaires to collect information from pharmacists working at government hospitals in Kuwait. In addition, one-to-one, face-to-face semi-structured interviews were conducted with the chief pharmacists of all health regions in Kuwait to discuss and identify the barriers and facilitators of implementing EBM in the hospitals. Quantitative and qualitative analytical measures were undertaken for the data acquired from the questionnaires and interviews, respectively. Results A total of 176 pharmacists (of 445) working in secondary and tertiary government hospitals in Kuwait agreed to take part in the study, giving a response rate of 40%. Over half of the study sample (n = 94, 53.4%) had good confidence in performing online database searches. Approximately 50% of the pharmacists were familiar with searching the Internet for medical resources, asking answerable clinical questions and retrieving research evidence. However, 67% of the pharmacists (n = 118) were neither able to apply research evidence to patient care nor capable of identifying knowledge gaps in practice. Barriers to EBM practice were identified, which included limited access to EBM resources (75%), a lack of time and patient overload (71.6%). The interview results confirmed the willingness of the hospital pharmacists to adopt EBM in their practice if necessary resources such as computers and internet connection were provided. Conclusion The hospital pharmacists in Kuwait showed good attitude and willingness towards EBM, however, they need to acquire adequate knowledge and skills for applying it in “real life” practise. Using the current results, clinical implications were recommended to demonstrate how to overcome the barriers, wherein hospital pharmacists could be ready to practice EBM

    [32] Perceptions of robot-assisted surgery: Results of a survey of surgeons in Kuwait

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    Objective: To gain insight into local surgeons’ perceptions of robot-assisted surgery (RAS), as the use of RAS has rapidly increased amongst hospitals worldwide and the da Vinci® Si surgical system (Intuitive Surgical Inc., Sunnyvale, CA, USA) was installed at Sabah Al-Ahmad Urology Center (SAUC) in February 2014 and at Kuwait’s Chest Disease Hospital in October 2017, with >200 robotic surgical procedures performed by robotic surgeons using these two systems, overall surgeons perceptions and acceptance of this new technology in Kuwait are largely unknown. Methods: We conducted a questionnaire-based survey distributed amongst surgeons of different subspecialties. The questionnaire had 28 questions related to the surgeon’s knowledge of RAS, it’s availability in Kuwait, and surgeons attitudes and concerns towards it. Results: There were 292 surveys, with 278 used for analysis (95.2% response rate). General surgeons, urologists, and gynaecologists constituted 54%, 23%, and 13%, respectively. The mean age of respondents was 36 years. There was a significant association between younger age groups and comfort using the technology (P< 0.05). In all, 250 surgeons (91%) had previously heard of RAS, and the majority (73%) agreed with its introduction into surgical practice mostly gynaecologists, urologists and general surgeons (P< 0.001) due to their belief of its enhanced precision and better visualisation. However, 50% of surgeons thought that laparoscopic surgery performs what RAS does. When surgeons were asked to rate factors according to their importance when choosing RAS they indicated faster recovery, lower complications, and patient demand were most important (P< 0.001) Conclusion: RAS seems to be an accepted modality amongst surgeons in Kuwait. However, surgeons remain concerned regarding the learning curve, device cost, and availability for use

    Investigating Students’ Perceptions towards Artificial Intelligence in Medical Education

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    Implementing a reform in medical education requires students’ awareness regarding the importance of artificial intelligence (AI) in modern medical practice. The objective of this study was to investigate students’ perceptions of AI in medical education. A cross-sectional survey was conducted from June 2021 to November 2021 using an online questionnaire to collect data from medical students in the Faculty of Medicine at Kuwait University, Kuwait. The response rate for the survey was 51%, with a sample size of 352. Most students (349 (99.1%)) agreed that AI would play an important role in healthcare. More than half of the students (213 (60.5%)) understood the basic principles of AI, and (329 (93.4%)) students showed comfort with AI terminology. Many students (329 (83.5%)) believed that learning about AI would benefit their careers, and (289 (82.1%)) believed that medical students should receive AI teaching or training. The study revealed that most students had positive perceptions of AI. Undoubtedly, the role of AI in the future of medicine will be significant, and AI-based medical practice is required. There was a strong consensus that AI will not replace doctors but will drastically transform healthcare practices

    Transfusion practice in patients receiving VV ECMO (PROTECMO): a prospective, multicentre, observational study

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    BACKGROUND: In patients receiving venovenous (VV) extracorporeal membrane oxygenation (ECMO) packed red blood cell (PRBC) transfusion thresholds are usually higher than in other patients who are critically ill. Available guidelines suggest a restrictive approach, but do not provide specific recommendations on the topic. The main aim of this study was, in a short timeframe, to describe the actual values of haemoglobin and the rate and the thresholds for transfusion of PRBC during VV ECMO. METHODS: PROTECMO was a multicentre, prospective, cohort study done in 41 ECMO centres in Europe, North America, Asia, and Australia. Consecutive adult patients with acute respiratory distress syndrome (ARDS) who were receiving VV ECMO were eligible for inclusion. Patients younger than 18 years, those who were not able to provide informed consent when required, and patients with an ECMO stay of less than 24 h were excluded. Our main aim was to monitor the daily haemoglobin concentration and the value at the point of PRBC transfusion, as well as the rate of transfusions. The practice in different centres was stratified by continent location and case volume per year. Adjusted estimates were calculated using marginal structural models with inverse probability weighting, accounting for baseline and time varying confounding. FINDINGS: Between Dec 1, 2018, and Feb 22, 2021, 604 patients were enrolled (431 [71%] men, 173 [29%] women; mean age 50 years [SD 13·6]; and mean haemoglobin concentration at cannulation 10·9 g/dL [2·4]). Over 7944 ECMO days, mean haemoglobin concentration was 9·1 g/dL (1·2), with lower concentrations in North America and high-volume centres. PRBC were transfused on 2432 (31%) of days on ECMO, and 504 (83%) patients received at least one PRBC unit. Overall, mean pretransfusion haemoglobin concentration was 8·1 g/dL (1·1), but varied according to the clinical rationale for transfusion. In a time-dependent Cox model, haemoglobin concentration of less than 7 g/dL was consistently associated with higher risk of death in the intensive care unit compared with other higher haemoglobin concentrations (hazard ratio [HR] 2·99 [95% CI 1·95-4·60]); PRBC transfusion was associated with lower risk of death only when transfused when haemoglobin concentration was less than 7 g/dL (HR 0·15 [0·03-0·74]), although no significant effect in reducing mortality was reported for transfusions for other haemoglobin classes (7·0-7·9 g/dL, 8·0-9·9 g/dL, or higher than 10 g/dL). INTERPRETATION: During VV ECMO, there was no universally accepted threshold for transfusion, but PRBC transfusion was invariably associated with lower mortality only when done with haemoglobin concentration of less than 7 g/dL. FUNDING: Extracorporeal Life Support Organization

    Transfusion practice in patients receiving VV ECMO (PROTECMO): a prospective, multicentre, observational study

    No full text
    Background: In patients receiving venovenous (VV) extracorporeal membrane oxygenation (ECMO) packed red blood cell (PRBC) transfusion thresholds are usually higher than in other patients who are critically ill. Available guidelines suggest a restrictive approach, but do not provide specific recommendations on the topic. The main aim of this study was, in a short timeframe, to describe the actual values of haemoglobin and the rate and the thresholds for transfusion of PRBC during VV ECMO. Methods: PROTECMO was a multicentre, prospective, cohort study done in 41 ECMO centres in Europe, North America, Asia, and Australia. Consecutive adult patients with acute respiratory distress syndrome (ARDS) who were receiving VV ECMO were eligible for inclusion. Patients younger than 18 years, those who were not able to provide informed consent when required, and patients with an ECMO stay of less than 24 h were excluded. Our main aim was to monitor the daily haemoglobin concentration and the value at the point of PRBC transfusion, as well as the rate of transfusions. The practice in different centres was stratified by continent location and case volume per year. Adjusted estimates were calculated using marginal structural models with inverse probability weighting, accounting for baseline and time varying confounding. Findings: Between Dec 1, 2018, and Feb 22, 2021, 604 patients were enrolled (431 [71%] men, 173 [29%] women; mean age 50 years [SD 13·6]; and mean haemoglobin concentration at cannulation 10·9 g/dL [2·4]). Over 7944 ECMO days, mean haemoglobin concentration was 9·1 g/dL (1·2), with lower concentrations in North America and high-volume centres. PRBC were transfused on 2432 (31%) of days on ECMO, and 504 (83%) patients received at least one PRBC unit. Overall, mean pretransfusion haemoglobin concentration was 8·1 g/dL (1·1), but varied according to the clinical rationale for transfusion. In a time-dependent Cox model, haemoglobin concentration of less than 7 g/dL was consistently associated with higher risk of death in the intensive care unit compared with other higher haemoglobin concentrations (hazard ratio [HR] 2·99 [95% CI 1·95-4·60]); PRBC transfusion was associated with lower risk of death only when transfused when haemoglobin concentration was less than 7 g/dL (HR 0·15 [0·03-0·74]), although no significant effect in reducing mortality was reported for transfusions for other haemoglobin classes (7·0-7·9 g/dL, 8·0-9·9 g/dL, or higher than 10 g/dL). Interpretation: During VV ECMO, there was no universally accepted threshold for transfusion, but PRBC transfusion was invariably associated with lower mortality only when done with haemoglobin concentration of less than 7 g/dL. Funding: Extracorporeal Life Support Organization
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