| 1. |
- Ademuyiwa, Adesoji O., et al.
(author)
-
Determinants of morbidity and mortality following emergency abdominal surgery in children in low-income and middle-income countries
- 2016
-
In: BMJ Global Health. - : BMJ Publishing Group Ltd. - 2059-7908. ; 1:4
-
Journal article (peer-reviewed)abstract
- Background: Child health is a key priority on the global health agenda, yet the provision of essential and emergency surgery in children is patchy in resource-poor regions. This study was aimed to determine the mortality risk for emergency abdominal paediatric surgery in low-income countries globally.Methods: Multicentre, international, prospective, cohort study. Self-selected surgical units performing emergency abdominal surgery submitted prespecified data for consecutive children aged <16 years during a 2-week period between July and December 2014. The United Nation's Human Development Index (HDI) was used to stratify countries. The main outcome measure was 30-day postoperative mortality, analysed by multilevel logistic regression.Results: This study included 1409 patients from 253 centres in 43 countries; 282 children were under 2 years of age. Among them, 265 (18.8%) were from low-HDI, 450 (31.9%) from middle-HDI and 694 (49.3%) from high-HDI countries. The most common operations performed were appendectomy, small bowel resection, pyloromyotomy and correction of intussusception. After adjustment for patient and hospital risk factors, child mortality at 30 days was significantly higher in low-HDI (adjusted OR 7.14 (95% CI 2.52 to 20.23), p<0.001) and middle-HDI (4.42 (1.44 to 13.56), p=0.009) countries compared with high-HDI countries, translating to 40 excess deaths per 1000 procedures performed.Conclusions: Adjusted mortality in children following emergency abdominal surgery may be as high as 7 times greater in low-HDI and middle-HDI countries compared with high-HDI countries. Effective provision of emergency essential surgery should be a key priority for global child health agendas.
|
|
| 2. |
- Abouzid, Mohamed, et al.
(author)
-
Investigating the current environmental situation in the Middle East and North Africa (MENA) region during the third wave of COVID-19 pandemic : urban vs. rural context
- 2022
-
In: BMC Public Health. - : Springer Nature. - 1471-2458. ; 22:1
-
Journal article (peer-reviewed)abstract
- BackgroundCoronavirus 2019 (COVID-19) pandemic led to a massive global socio-economic tragedy that has impacted the ecosystem. This paper aims to contextualize urban and rural environmental situations during the COVID-19 pandemic in the Middle East and North Africa (MENA) Region.ResultsAn online survey was conducted, 6770 participants were included in the final analysis, and 64% were females. The majority of the participants were urban citizens (74%). Over 50% of the urban residents significantly (p < 0.001) reported a reduction in noise, gathering in tourist areas, and gathering in malls and restaurants. Concerning the pollutants, most urban and rural areas have reported an increase in masks thrown in streets (69.49% vs. 73.22%, resp.; p = 0.003). Plastic bags and hospital waste also increased significantly with the same p-value of < 0.001 in urban areas compared with rural ones. The multifactorial logistic model for urban resident predictors achieved acceptable discrimination (AUROC = 0.633) according to age, crowdedness, noise and few pollutants.ConclusionThe COVID-19 pandemic had a beneficial impact on the environment and at the same time, various challenges regarding plastic and medical wastes are rising which requires environmental interventions.
|
|
| 3. |
- Abbafati, Cristiana, et al.
(author)
-
- 2020
-
Journal article (peer-reviewed)
|
|
| 4. |
- Abdeljaber, Osama, et al.
(author)
-
Fault Detection and Severity Identification of Ball Bearings by Online Condition Monitoring
- 2019
-
In: IEEE Transactions on Industrial Electronics. - : IEEE. - 0278-0046 .- 1557-9948. ; 66:10, s. 8136-8147
-
Journal article (peer-reviewed)abstract
- This paper presents a fast, accurate, and simple systematic approach for online condition monitoring and severity identification of ball bearings. This approach utilizes compact one-dimensional (1-D) convolutional neural networks (CNNs) to identify, quantify, and localize bearing damage. The proposed approach is verified experimentally under several single and multiple damage scenarios. The experimental results demonstrated that the proposed approach can achieve a high level of accuracy for damage detection, localization, and quantification. Besides its real-time processing ability and superior robustness against the high-level noise presence, the compact and minimally trained 1-D CNNs in the core of the proposed approach can handle new damage scenarios with utmost accuracy.
|
|
| 5. |
- Alnadhari, Ibrahim, et al.
(author)
-
Presentation, diagnosis, management, and outcomes of prostatic abscess : comparison of three treatment modalities
- 2020
-
In: Therapeutic advances in urology. - : Sage Publications. - 1756-2872 .- 1756-2880. ; 12, s. 1-8
-
Journal article (peer-reviewed)abstract
- Purpose:The lack of available guidelines for the management of prostatic abscess (PA) results in inconsistencies in its management. The most commonly used management modalities were conservative treatment with parenteral antibiotics alone, transrectal ultrasound-guided (TRUS) needle aspiration, or transurethral deroofing (TUD).The current study is a retrospective study and examines prostatic abscess cases treated by either one or more of the different modalities. We assess and compare presentation, diagnosis, management, and outcomes of prostatic abscess and we compare the outcomes of the three management modalities.Methods:We retrieved the records of all patients (n = 23) admitted to the Urology department at Al Wakra hospital with the computed tomography (CT) diagnosis of prostatic abscess from January 2013 to March 2018. Data collected included demographic, clinical, laboratory, and imaging findings, as well as management modality, duration of hospital stay, duration of follow up, outcome, and recurrence.Results:A total of nine (39.1%) patients had conservative treatment only; eight (34.8%) had TUD, and six (26.1%) had TRUS needle aspiration. The mean age was 52.7 years. Lower urinary tract symptoms and fever were the most common presentations (95.7% and 82.6%, respectively). CT scan of the abdomen and pelvis with contrast was undertaken for all patients and it showed that multiple abscesses were observed in 14 (60.9%) cases.The overall mean hospital stay was 8.45 days (range 2–21 days). We observed no recurrences for patients treated conservatively or those who undertook TUD, but three patient (50%) recurrences were noted in TRUS aspiration patients. There was no mortality across the sample.Conclusion:Early diagnosis of prostatic abscess and prompt management may have decreased the morbidity and mortality. Conservative management can succeed in subcentimeter abscesses but TUD is the definite therapy for large and multiloculated abscess. TRUS aspiration does have a role in treatment, but it has higher recurrence and longer hospital stay.
|
|
| 6. |
- Avci, Onur, et al.
(author)
-
One-Dimensional Convolutional Neural Networks for Real-Time Damage Detection of Rotating Machinery
- 2022
-
In: Rotating Machinery, Optical Methods & Scanning LDV Methods, Volume 6. Conference Proceedings of the Society for Experimental Mechanics Series. - Cham : Springer. ; , s. 73-83
-
Conference paper (peer-reviewed)abstract
- This paper presents a novel real-time rotating machinery damage monitoring system. The system detects, quantifies, and localizes damage in ball bearings in a fast and accurate way using one-dimensional convolutional neural networks (1D-CNNs). The proposed method has been validated with experimental work not only for single damage but also for multiple damage cases introduced onto ball bearings in laboratory environment. The two 1D-CNNs (one set for the interior bearing ring and another set for the exterior bearing ring) were trained and tested under the same conditions for torque and speed. It is observed that the proposed system showed excellent performance even with the severe additive noise. The proposed method can be implemented in practical use for online defect detection, monitoring, and condition assessment of ball bearings and other rotatory machine elements. © 2022, The Society for Experimental Mechanics, Inc.
|
|
| 7. |
- Berggren, Peter, et al.
(author)
-
Coping with large disruptions in the payment system : stakeholder experience from stakeholder workshops and computer based simulation gaming exercises
- 2020
-
In: Proceedings of the 2020 the 3rd International Conference on Computers in Management and Business (ICCMB 2020) Session - Computer and Mobile Technology. - New York : Association for Computing Machinery (ACM). - 9781450376778 ; , s. 141-145, s. 141-145
-
Conference paper (peer-reviewed)abstract
- In this paper, we describe a work in progress where a mixed methods approach is used to increase insight into what kind of consequences a temporal disruption or total breakdown of the payment system creates for a large variety of societal actors and to increase insight in how their collaborative behaviour can be guided to be more resilient. This approach includes data from different types of data collections; workshop with high-level decisionmakers from involved sectors, interviews with citizens, representatives from the fuel, foods, and finance sectors, as well as experiences from 15 simulation game exercises with stakeholders. The triangulated and aggregated outcomes of the different data collections resulted in a set of recommendations on how to cope with disruptions in the card payment system.
|
|
| 8. |
- Bergsten, Linnea, et al.
(author)
-
Designing engaging computer based simulation games for increasing societal resilience to payment system
- 2020
-
In: Proceedings of the 2020 the 3rd International Conference on Computers in Management and Business (ICCMB 2020) Session - Computer and Mobile Technology. - New York : Association for Computing Machinery (ACM). - 9781450376778 ; , s. 166-172, s. 166-172
-
Conference paper (peer-reviewed)abstract
- Large or lengthy disruptions to the card payment system are threats that can cause crisis in society, especially in countries where other payment options are scarce. This paper presents a study that provides suggestions on how to improve a simulation game used to increase societal resilience to payment system disruptions. Questionnaires and interviews have been used to investigate how 16 participant in crisis exercises experience realism, relevance and validity in such exercises. Suggestions on how to improve the simulation game are provided, such as improvements to the graphical interface and introducing supporting roles from the exercise management.
|
|
| 9. |
- Ehrentraut, Claudia, et al.
(author)
-
Text Analysis to support structuring and modelling a public policy problem : Outline of an algorithm to extract inferences from textual data
- 2014
-
In: DSV writers hut 2014. - Stockholm : Department of Computer and Systems Sciences, Stockholm University. - 9789163774577
-
Conference paper (other academic/artistic)abstract
- Policy making situations are real-world problems that exhibit complexity in that they are composed of many interrelated problems and issues. To be effective, policies must holistically address the complexity of the situation rather than propose solutions to single problems. Formulating and understanding the situation and its complex dynamics, therefore, is a key to finding holistic solutions. Analysis of text based information on the policy problem, using Natural Language Processing (NLP) and Text analysis techniques, can support modelling of public policy problem situations in a more objective way based on domain experts’ knowledge and scientific evidence. The objective behind this study is to support modelling of public policy problem situations, using text analysis of verbal descriptions of the problem. We propose a formal methodology for analysis of qualitative data from multiple information sources on a policy problem to construct a causal diagram of the problem. The analysis process aims at identifying key variables, linking them by cause-effect relationships and mapping that structure into a graphical representation that is adequate for designing action alternatives, i.e., policy options. This study describes the outline of an algorithm used to automate the initial step of a larger methodological approach, which is so far done manually. In this initial step, inferences about key variables and their interrelationships are extracted from textual data to support a better problem structuring. A small prototype for this step is also presented.
|
|
| 10. |
- Ellabban, Mohamed A., et al.
(author)
-
Assessment of Freestyle Local Facial Perforator Flaps for Coverage of Facial Defects
- 2021
-
In: The Journal of Craniofacial Surgery. - : Wolters Kluwer. - 1049-2275 .- 1536-3732. ; 32:2, s. e122-e125
-
Journal article (peer-reviewed)abstract
- OBJECTIVE: To assess local freestyle facial perforator flaps in the reconstruction of small to medium-sized facial defects.MATERIALS AND METHODS: In a case series, local freestyle perforator flaps were used in Suez Canal University Hospital to reconstruct 28 facial defects in 26 patients between 2017 and 2019. Adequate perforators were identified near those defects and flaps were designed as propeller or VY advancement. Four scales from the FACE-Q (satisfaction with facial appearance, satisfaction with the outcome, psychological function, and appearance-related psychosocial distress) and 2 scales from the SCAR-Q (Appearance scale and Symptom scale) were used as well as the observer part of the Patient and Observer Scar Assessment Scale. The mean follow up period was 10 months.RESULTS: Complete reconstruction was achieved in all cases with a high rate of patient satisfaction which was assessed by FACE-Q and SCAR-Q. Moreover, observer assessment by Patient and Observer Scar Assessment Scale score showed high patient satisfaction with the scars with a mean (SD) 15.5 (3.4) and there was a positive correlation between subjective and objective: results (r2 from 0.27 to 0.41, P < 0.01). Regarding complications, bulkiness occurred in 2 flaps, congestion in 2 flaps, dehiscence in 1 flap, and tip necrosis in 5 flaps. Accordingly, secondary intervention in the form of medicinal leech therapy was used in 3 flaps, delayed closure for the dehisced flap and debulking for 1 flap.CONCLUSIONS: Local freestyle perforator flap reconstruction is one of the recommended techniques for small to medium-sized facial defects which gives a high aesthetic outcome and patient satisfaction.
|
|
