40 research outputs found

    Competitive advantage of small and medium size enterprises in Palestine

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    The main core of this study is to assess the current state of the Palestinian Small and Medium Size Enterprises (SMEs) sector and determine its potential and opportunities open to this sector for playing a central role in the development process, as well as to examine the reasons behind the limited presence of SMEs' in the Palestinian territory. This thesis explores and examines via qualitative and quantitative research methods, the competitive advantages and distinctive competencies that determine success in firms established in Palestine before and after the Oslo Agreement. The study embraces two case analyses, indepth interviews of successful and less-successful firms and an extensive survey interviewing the owner/manager of established firms in the West Bank and Gaza Strip (WBGS). The empirical analysis is based on survey data from 200 Textile and Garment ventures. Data was examined and analysed using multiple statistical analysis, results were summarised and presented in table and graph forms. In this study, relations between firms' basic resources, competitive positioning tools, and performance are analysed. Comparison is made between the performance of firms based in the West Bank and that of firms in Gaza Strip. Comparative analyses reveal similarities and differences between the two regions. Implications for firm owner-managers and policy makers are discussed. Finally, the study provides suggestions for future research

    Clinical comparison of three aligner systems

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    Objectives: The object of this clinical study was to compare three different aligner systems. The aim was to help the ortho-dontist with choosing an adequate aligner philosophy/therapy system.Materials and methods: This study included 60 randomly chosen patients. Mild to moderate cases were selected, and patients were assigned to three groups of 20 patients each. One group was treated with Invisalign (20 patients), the sec-ond group was treated with CA Clear Aligner and the third group of patients was treated with the Orthocaps aligner sys-tem. In all cases, attachments were used to additionally en-hance the fitting and efficiency of the aligner.Results: All investigated aligner systems achieved the predict-ed goal of the treatment, although with significant differences concerning accuracy, the predicted duration of treatment and the number of refinements. Significant differences were deter-mined, especially regarding the efficiency, duration and cost of treatments.Conclusion: Aligner orthodontics allow for handling difficult treatment cases despite different aligner philosophies, differ-ent materials and different durations of treatment. There were significant differences concerning the envisaged time of treatment. In moderate cases, a significant difference con-cerning duration and costs was determined. IntroductionThere are many orthodontic systems on the market, and it can be difficult for clinicians to choose. The aim of this clinical study was to compare three different aligner systems. The main differences between the systems are described. The study combines a report of 60 treated patients, treated with three currently available systems. Comparisons were made based on factors useful to the clinician, including comfort, cost, and whether the intended treatment goal was reache

    The impact of the soft errors in convolutional neural network on GPUS: Alexnet as case study

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    Convolutional Neural Networks (CNNs) have been increasingly deployed in many applications, including safety critical system such as healthcare and autonomous vehicles. Meanwhile, the vulnerability of CNN model to soft errors (e.g., caused by radiation mduced) rapidly increases, thus reliability is crucial especially in real-tmie system. There are many traditional techniques for miprove the reliability of the system, e.g.. Triple Modular Redundancy, but these techniques incur high overheads, which makes them hard to deploy. In tins paper, we experimentally evaluate the vulnerable parts of Alexnet mode (e.g., fault mjector). Results show that FADD and LD are the top vulnerable mstructions against soft errors for Alexnet model, both mstruetions generate at least 84% of injected faults as SDC errors. Thus, these the only parts of the Alexnet model that need to be hardened mstead of usmg fully duplication solutions

    The patterns of clinical presentations of cerebellar syndromes among adult Sudanese patients

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    Cerebellar syndromes are one of the commonest neurological diseases.Objectives: To study the patterns of clinical presentations of cerebellar syndromes and to identify the possible causes.Methods: This is a prospective hospital based, cross-sectional study. One hundred adult Sudanese patients with cerebellar syndromes were included in the study during the period from January 2006– January 2007.Results: The most common age group affected was 18 – 25 years. Male to female ratio was 1.5: 1 unsteadiness on walking was the most common symptom (83%). Gait-ataxia was the most common sign (83%). Cerebrovascular disease was the most common aetiology (25%).Conclusion: Cerebellar syndromes are not rare in Sudan. However, they were diagnosed more commonly at the central regions of the country probably because of more awareness of patients and better facilitiesfor diagnosis. The age of onset, the male predominance, the presentation and clinical findings were not different from reported literature. This also goes for the common causes apart from alcohol which is a strikingly rare as a cause in this study and could be accounted for the implementation of Elshariya (Islamic laws) Laws in Sudan.Keywords: ataxia, dysmetria, disdiadochokenesis, decomposition, nystagmus, dysarthria

    Management of Burns in Gaza-Strip A Multi-center Clinical Audit

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    A combined prospective and retrospective study was conducted in the ERs of Al-Shifa, Nasser Medical Complex and European Gaza hospitals. Two structured questionnaires were used to collect the management of burn according to the Palestinian management protocol. This study found that from the 147 cases that came to the ER, 37.6% underwent ABCDE approach and 87.8% (n=129/147) received sterile dressings. Background: Burns is a global public health problem and appropriate intervention will decrease morbidity and mortality. This study aimed to evaluate the management of burns in the emergency room (ER), burns units and intensive care units (ICU) of the Gaza-Strip. Objectives: To evaluate the management of burns in the ER, burns unit and ICU in terms of following ABCDE approach, using sterile dressings, giving fluid resuscitation, antibiotics, ranitidine and undergoing physiotherapy. Methods: A prospective study evaluated the management of patients presenting with burns injuries to the ER between the period 22nd July to 20 August 2018, and retrospectively, management of patients was evaluated, who were admitted to the burns units and to ICU between 1st January 2017 and 30th July 2018 at Al-Shifa Hospital and Nasser Medical Complex. The Palestinian management protocol was used for evaluation. A total of 428 patients were identified to have burns injuries during the study period. Of these, 142 were excluded, 108 due to missing files and 34 files had poor documentation (no documentation of medication or assessments). Included were 147 patients admitted to ER, 122 on the burns unit and 17 on the ICU. Results: In the ER, 57.1% (n=84/147) of patients were male, with a mean age of 15.4±14.1. Of the 147 cases, 17.7% (n=26/147) were major burns, which included more than 10% total body surface area burned (TBSA). Of these, 37.6% underwent ABCDE approach and 87.8% (n=129/147) received sterile dressings. From the 122 patients admitted to the burns unit, 59.8% (n=73) were male with a mean age of 11.4±14.6 years. From these, 47.5% (n=58/122) underwent fluid resuscitation, 97.5% (n=119/122) received antibiotics, 17.2% (n=21/122) received ranitidine and 56.6% (n=69/122) underwent physiotherapy. Out of the 17 patients admitted to ICU, 76.5% (n=13/17) were male, with a mean age of 19.2±12.8 years. All of these patients received prophylactic antibiotics, 58.8% (n=10/17) had endotracheal intubation, 5.9% (n=1/17) underwent central venous pressure measurement (CVP), 23.5% (n=4/17) had ABG tested and 88.2% (n=15/17) kidney function tests (KFT), and 64.7% (n=11/17) received ranitidine. No patient had a chest X-Ray (CXR) or carbon monoxide (CO) level done. From the ICU patients, 17.6% (n=3/17) benefitted from physiotherapy, and 35.3% (n=6/17) Conclusion: The findings of this study demonstrate poor adherence to guidelines in some points, such as patients presenting with major burns, who should all benefit from the ABCDE approach, but less than 40% of patients actually did and antibiotics, which should only be prescribed when indicated, were given to nearly all patients admitted to the burns unit or ICU. Efforts are required to improve staff practices with burn injuries

    Antimicrobial resistance among migrants in Europe: a systematic review and meta-analysis

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    BACKGROUND: Rates of antimicrobial resistance (AMR) are rising globally and there is concern that increased migration is contributing to the burden of antibiotic resistance in Europe. However, the effect of migration on the burden of AMR in Europe has not yet been comprehensively examined. Therefore, we did a systematic review and meta-analysis to identify and synthesise data for AMR carriage or infection in migrants to Europe to examine differences in patterns of AMR across migrant groups and in different settings. METHODS: For this systematic review and meta-analysis, we searched MEDLINE, Embase, PubMed, and Scopus with no language restrictions from Jan 1, 2000, to Jan 18, 2017, for primary data from observational studies reporting antibacterial resistance in common bacterial pathogens among migrants to 21 European Union-15 and European Economic Area countries. To be eligible for inclusion, studies had to report data on carriage or infection with laboratory-confirmed antibiotic-resistant organisms in migrant populations. We extracted data from eligible studies and assessed quality using piloted, standardised forms. We did not examine drug resistance in tuberculosis and excluded articles solely reporting on this parameter. We also excluded articles in which migrant status was determined by ethnicity, country of birth of participants' parents, or was not defined, and articles in which data were not disaggregated by migrant status. Outcomes were carriage of or infection with antibiotic-resistant organisms. We used random-effects models to calculate the pooled prevalence of each outcome. The study protocol is registered with PROSPERO, number CRD42016043681. FINDINGS: We identified 2274 articles, of which 23 observational studies reporting on antibiotic resistance in 2319 migrants were included. The pooled prevalence of any AMR carriage or AMR infection in migrants was 25·4% (95% CI 19·1-31·8; I2 =98%), including meticillin-resistant Staphylococcus aureus (7·8%, 4·8-10·7; I2 =92%) and antibiotic-resistant Gram-negative bacteria (27·2%, 17·6-36·8; I2 =94%). The pooled prevalence of any AMR carriage or infection was higher in refugees and asylum seekers (33·0%, 18·3-47·6; I2 =98%) than in other migrant groups (6·6%, 1·8-11·3; I2 =92%). The pooled prevalence of antibiotic-resistant organisms was slightly higher in high-migrant community settings (33·1%, 11·1-55·1; I2 =96%) than in migrants in hospitals (24·3%, 16·1-32·6; I2 =98%). We did not find evidence of high rates of transmission of AMR from migrant to host populations. INTERPRETATION: Migrants are exposed to conditions favouring the emergence of drug resistance during transit and in host countries in Europe. Increased antibiotic resistance among refugees and asylum seekers and in high-migrant community settings (such as refugee camps and detention facilities) highlights the need for improved living conditions, access to health care, and initiatives to facilitate detection of and appropriate high-quality treatment for antibiotic-resistant infections during transit and in host countries. Protocols for the prevention and control of infection and for antibiotic surveillance need to be integrated in all aspects of health care, which should be accessible for all migrant groups, and should target determinants of AMR before, during, and after migration. FUNDING: UK National Institute for Health Research Imperial Biomedical Research Centre, Imperial College Healthcare Charity, the Wellcome Trust, and UK National Institute for Health Research Health Protection Research Unit in Healthcare-associated Infections and Antimictobial Resistance at Imperial College London

    Surgical site infection after gastrointestinal surgery in high-income, middle-income, and low-income countries: a prospective, international, multicentre cohort study

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    Background: Surgical site infection (SSI) is one of the most common infections associated with health care, but its importance as a global health priority is not fully understood. We quantified the burden of SSI after gastrointestinal surgery in countries in all parts of the world. Methods: This international, prospective, multicentre cohort study included consecutive patients undergoing elective or emergency gastrointestinal resection within 2-week time periods at any health-care facility in any country. Countries with participating centres were stratified into high-income, middle-income, and low-income groups according to the UN's Human Development Index (HDI). Data variables from the GlobalSurg 1 study and other studies that have been found to affect the likelihood of SSI were entered into risk adjustment models. The primary outcome measure was the 30-day SSI incidence (defined by US Centers for Disease Control and Prevention criteria for superficial and deep incisional SSI). Relationships with explanatory variables were examined using Bayesian multilevel logistic regression models. This trial is registered with ClinicalTrials.gov, number NCT02662231. Findings: Between Jan 4, 2016, and July 31, 2016, 13 265 records were submitted for analysis. 12 539 patients from 343 hospitals in 66 countries were included. 7339 (58·5%) patient were from high-HDI countries (193 hospitals in 30 countries), 3918 (31·2%) patients were from middle-HDI countries (82 hospitals in 18 countries), and 1282 (10·2%) patients were from low-HDI countries (68 hospitals in 18 countries). In total, 1538 (12·3%) patients had SSI within 30 days of surgery. The incidence of SSI varied between countries with high (691 [9·4%] of 7339 patients), middle (549 [14·0%] of 3918 patients), and low (298 [23·2%] of 1282) HDI (p < 0·001). The highest SSI incidence in each HDI group was after dirty surgery (102 [17·8%] of 574 patients in high-HDI countries; 74 [31·4%] of 236 patients in middle-HDI countries; 72 [39·8%] of 181 patients in low-HDI countries). Following risk factor adjustment, patients in low-HDI countries were at greatest risk of SSI (adjusted odds ratio 1·60, 95% credible interval 1·05–2·37; p=0·030). 132 (21·6%) of 610 patients with an SSI and a microbiology culture result had an infection that was resistant to the prophylactic antibiotic used. Resistant infections were detected in 49 (16·6%) of 295 patients in high-HDI countries, in 37 (19·8%) of 187 patients in middle-HDI countries, and in 46 (35·9%) of 128 patients in low-HDI countries (p < 0·001). Interpretation: Countries with a low HDI carry a disproportionately greater burden of SSI than countries with a middle or high HDI and might have higher rates of antibiotic resistance. In view of WHO recommendations on SSI prevention that highlight the absence of high-quality interventional research, urgent, pragmatic, randomised trials based in LMICs are needed to assess measures aiming to reduce this preventable complication

    The global burden of cancer attributable to risk factors, 2010-19 : a systematic analysis for the Global Burden of Disease Study 2019

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    Background Understanding the magnitude of cancer burden attributable to potentially modifiable risk factors is crucial for development of effective prevention and mitigation strategies. We analysed results from the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2019 to inform cancer control planning efforts globally. Methods The GBD 2019 comparative risk assessment framework was used to estimate cancer burden attributable to behavioural, environmental and occupational, and metabolic risk factors. A total of 82 risk-outcome pairs were included on the basis of the World Cancer Research Fund criteria. Estimated cancer deaths and disability-adjusted life-years (DALYs) in 2019 and change in these measures between 2010 and 2019 are presented. Findings Globally, in 2019, the risk factors included in this analysis accounted for 4.45 million (95% uncertainty interval 4.01-4.94) deaths and 105 million (95.0-116) DALYs for both sexes combined, representing 44.4% (41.3-48.4) of all cancer deaths and 42.0% (39.1-45.6) of all DALYs. There were 2.88 million (2.60-3.18) risk-attributable cancer deaths in males (50.6% [47.8-54.1] of all male cancer deaths) and 1.58 million (1.36-1.84) risk-attributable cancer deaths in females (36.3% [32.5-41.3] of all female cancer deaths). The leading risk factors at the most detailed level globally for risk-attributable cancer deaths and DALYs in 2019 for both sexes combined were smoking, followed by alcohol use and high BMI. Risk-attributable cancer burden varied by world region and Socio-demographic Index (SDI), with smoking, unsafe sex, and alcohol use being the three leading risk factors for risk-attributable cancer DALYs in low SDI locations in 2019, whereas DALYs in high SDI locations mirrored the top three global risk factor rankings. From 2010 to 2019, global risk-attributable cancer deaths increased by 20.4% (12.6-28.4) and DALYs by 16.8% (8.8-25.0), with the greatest percentage increase in metabolic risks (34.7% [27.9-42.8] and 33.3% [25.8-42.0]). Interpretation The leading risk factors contributing to global cancer burden in 2019 were behavioural, whereas metabolic risk factors saw the largest increases between 2010 and 2019. Reducing exposure to these modifiable risk factors would decrease cancer mortality and DALY rates worldwide, and policies should be tailored appropriately to local cancer risk factor burden. Copyright (C) 2022 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license.Peer reviewe

    Pooled analysis of WHO Surgical Safety Checklist use and mortality after emergency laparotomy

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    Background The World Health Organization (WHO) Surgical Safety Checklist has fostered safe practice for 10 years, yet its place in emergency surgery has not been assessed on a global scale. The aim of this study was to evaluate reported checklist use in emergency settings and examine the relationship with perioperative mortality in patients who had emergency laparotomy. Methods In two multinational cohort studies, adults undergoing emergency laparotomy were compared with those having elective gastrointestinal surgery. Relationships between reported checklist use and mortality were determined using multivariable logistic regression and bootstrapped simulation. Results Of 12 296 patients included from 76 countries, 4843 underwent emergency laparotomy. After adjusting for patient and disease factors, checklist use before emergency laparotomy was more common in countries with a high Human Development Index (HDI) (2455 of 2741, 89.6 per cent) compared with that in countries with a middle (753 of 1242, 60.6 per cent; odds ratio (OR) 0.17, 95 per cent c.i. 0.14 to 0.21, P <0001) or low (363 of 860, 422 per cent; OR 008, 007 to 010, P <0.001) HDI. Checklist use was less common in elective surgery than for emergency laparotomy in high-HDI countries (risk difference -94 (95 per cent c.i. -11.9 to -6.9) per cent; P <0001), but the relationship was reversed in low-HDI countries (+121 (+7.0 to +173) per cent; P <0001). In multivariable models, checklist use was associated with a lower 30-day perioperative mortality (OR 0.60, 0.50 to 073; P <0.001). The greatest absolute benefit was seen for emergency surgery in low- and middle-HDI countries. Conclusion Checklist use in emergency laparotomy was associated with a significantly lower perioperative mortality rate. Checklist use in low-HDI countries was half that in high-HDI countries.Peer reviewe

    Global variation in anastomosis and end colostomy formation following left-sided colorectal resection

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    Background End colostomy rates following colorectal resection vary across institutions in high-income settings, being influenced by patient, disease, surgeon and system factors. This study aimed to assess global variation in end colostomy rates after left-sided colorectal resection. Methods This study comprised an analysis of GlobalSurg-1 and -2 international, prospective, observational cohort studies (2014, 2016), including consecutive adult patients undergoing elective or emergency left-sided colorectal resection within discrete 2-week windows. Countries were grouped into high-, middle- and low-income tertiles according to the United Nations Human Development Index (HDI). Factors associated with colostomy formation versus primary anastomosis were explored using a multilevel, multivariable logistic regression model. Results In total, 1635 patients from 242 hospitals in 57 countries undergoing left-sided colorectal resection were included: 113 (6·9 per cent) from low-HDI, 254 (15·5 per cent) from middle-HDI and 1268 (77·6 per cent) from high-HDI countries. There was a higher proportion of patients with perforated disease (57·5, 40·9 and 35·4 per cent; P < 0·001) and subsequent use of end colostomy (52·2, 24·8 and 18·9 per cent; P < 0·001) in low- compared with middle- and high-HDI settings. The association with colostomy use in low-HDI settings persisted (odds ratio (OR) 3·20, 95 per cent c.i. 1·35 to 7·57; P = 0·008) after risk adjustment for malignant disease (OR 2·34, 1·65 to 3·32; P < 0·001), emergency surgery (OR 4·08, 2·73 to 6·10; P < 0·001), time to operation at least 48 h (OR 1·99, 1·28 to 3·09; P = 0·002) and disease perforation (OR 4·00, 2·81 to 5·69; P < 0·001). Conclusion Global differences existed in the proportion of patients receiving end stomas after left-sided colorectal resection based on income, which went beyond case mix alone
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