0000000000663518

AUTHOR

Ahmed Mohammed

showing 6 related works from this author

Do Diacritical Marks Play a Role at the Early Stages of Word Recognition in Arabic?

2016

Published: 22 August 2016 A crucial question in the domain of visual word recognition is whether letter similarity plays a role in the early stages of visual word processing. Here we focused on Arabic because in this language there are various groups of letters that share the same basic shape and only differ in the number/location of diacritical points. We conducted a masked priming lexical decision experiment in which a target word was preceded by: (i) an identity prime; (ii) a prime in which the critical letter was replaced by a letter with the same shape that differed in the number of diacritics (e.g., ); or (iii) a prime in which the critical letter was replaced by a letter with differe…

lexical accesslcsh:BF1-990Word processing050105 experimental psychologyIdentity (music)PSYCHOLOGY03 medical and health sciencesPrime (symbol)0302 clinical medicinemasked primingFeature (machine learning)Lexical decision task0501 psychology and cognitive sciencesGeneral PsychologyOriginal Researchlexical decisionVisual-word recognition05 social sciencesLinguisticslcsh:PsychologyWord recognitionvisual-letter similarityPsychologyPriming (psychology)030217 neurology & neurosurgeryWord (group theory)
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Pooled analysis of who surgical safety checklist use and mortality after emergency laparotomy

2019

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 incl…

AdultMalebarriershumanoschecklist; surgery; human development indexGlobalSurg CollaborativeWHO Surgical Safety Checklist mortality emergency laparotomyWorld Health Organizationseguridad del pacienteNOCohort Studieslista de controlestudios prospectivosHumanstasa de supervivenciaProspective Studiesimplementationestudios de cohortesSurgery; implementation; health; barriersEmergency Treatment11 Medical and Health Sciencesmediana edadDigestive System Surgical ProceduresAgedancianoLaparotomyScience & TechnologyhealthOriginal ArticlesadultoMiddle Agedchecklist WHOprocedimientos quirúrgicos del sistema digestivoChecklistSurvival RateElective Surgical Procedureslaparotomíatratamiento de urgenciaSurgeryOriginal ArticleFemalePatient SafetyLife Sciences & Biomedicine
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Global economic burden of unmet surgical need for appendicitis

2022

Abstract Background There is a substantial gap in provision of adequate surgical care in many low- and middle-income countries. This study aimed to identify the economic burden of unmet surgical need for the common condition of appendicitis. Methods Data on the incidence of appendicitis from 170 countries and two different approaches were used to estimate numbers of patients who do not receive surgery: as a fixed proportion of the total unmet surgical need per country (approach 1); and based on country income status (approach 2). Indirect costs with current levels of access and local quality, and those if quality were at the standards of high-income countries, were estimated. A human capita…

surgical unmetneedno keywords listedsurgical unmetneed; appendicitis; global surgeryFinancial StressHealth Care Costsglobal surgeryAppendicitisFinancial StreHealth Care CostCost of IllnessHumansappendicitiseconomic burden surgerySurgeryAppendicitiHuman
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Timing of surgery following SARS-CoV-2 infection: an international prospective cohort study

2021

Peri-operative SARS-CoV-2 infection increases postoperative mortality. The aim of this study was to determine the optimal duration of planned delay before surgery in patients who have had SARS-CoV-2 infection. This international, multicentre, prospective cohort study included patients undergoing elective or emergency surgery during October 2020. Surgical patients with pre-operative SARS-CoV-2 infection were compared with those without previous SARS-CoV-2 infection. The primary outcome measure was 30-day postoperative mortality. Logistic regression models were used to calculate adjusted 30-day mortality rates stratified by time from diagnosis of SARS-CoV-2 infection to surgery. Among 140,231…

MaleVascular damage Radboud Institute for Health Sciences [Radboudumc 16]MULTICENTERinfectious diseases0302 clinical medicine030202 anesthesiologyAnesthesiologyCirugía80 and overProspective StudiesYoung adultChildLungAged 80 and overCOVID-19 ; delay ; SARS-CoV-2 ; surgery ; timingSARS‐CoV‐2 infectionOperativeChild PreschoolPneumonia & InfluenzaInfectionCohort studyHumanmedicine.medical_specialtydelayClinical SciencesSars-cov-2GlobalSurg CollaborativeSettore MED/28 - MALATTIE ODONTOSTOMATOLOGICHE03 medical and health sciencesClinical ResearchAnesthesiologyBiodefenseCorrespondence617HumansPULMONARY COMPLICATIONSCRIANÇAS EM IDADE PRÉ-ESCOLARAgedScience & TechnologyCirurgiaPreventionCOVID-19; SARS-CoV-2; delay; surgery; timingInfantOdds ratioPneumoniaProspective StudieClinical research/dk/atira/pure/core/keywords/uob_covid19SurgeryHuman medicine610 Medizin und Gesundheit1109 NeurosciencesInternationalitySettore MED/29 - CHIRURGIA MAXILLOFACCIALESettore MED/18 - CHIRURGIA GENERALECOVID-19; delay; SARS-CoV-2; surgery; timing; Adolescent; Adult; Aged; Aged 80 and over; Child; Child Preschool; Cohort Studies; Female; Humans; Infant; Male; Middle Aged; Prospective Studies; SARS-CoV-2; Surgical Procedures Operative; Time; Young Adult; COVID-19; Internationality; Practice Guidelines as TopicgastroenterologyCohort StudiessurgeryMedicine and Health Sciencestiming030212 general & internal medicineProspective cohort studyMortality rateCOVID-19; delay; SARS-CoV-2; surgery; timingCovid19Middle AgedInfectious DiseasesSurgical Procedures OperativePractice Guidelines as TopicFemalePatient Safetymedicine.symptom6.4 SurgeryLife Sciences & BiomedicineAdult61Adolescent610 Medicine & healthCOVID-19 SARS-CoV-2 delay surgery timingAsymptomaticNOCOVIDSurg CollaborativeTimeVaccine RelatedYoung AdultAll institutes and research themes of the Radboud University Medical CentermedicineMortalitatddc:610MortalityPreschoolLS7_4Surgical Proceduresbusiness.industrySARS-CoV-2NeurosciencesEvaluation of treatments and therapeutic interventionsCOVID-191103 Clinical Sciences3126 Surgery anesthesiology intensive care radiologySurgeryReconstructive and regenerative medicine Radboud Institute for Health Sciences [Radboudumc 10]Anesthesiology and Pain MedicineEmerging Infectious DiseasesGood Health and Well BeingMortalidadCohort Studiebusiness
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Does the Visual Attention Span Play a Role in Reading in Arabic?

2018

It is unclear whether the association between the visual attention (VA) span and reading differs across languages. Here we studied this relationship in Arabic, where the use of specific reading strategies depends on the amount of diacritics on words: reading vowelized and nonvowelized Arabic scripts favor sublexical and lexical strategies, respectively. We hypothesized that the size of the VA span and its association to reading would differ depending on individual �script preferences.� We compared children who were more proficient in reading fully vowelized Arabic than nonvowelized Arabic (VOW) to children for whom the opposite was true (NOVOW). NOVOW children showed a crowding effect in th…

Visual perceptionSpan (category theory)Arabicmedia_common.quotation_subject05 social sciencesLexicologySemitic languagesAttention span050105 experimental psychologylanguage.human_languageEducation03 medical and health sciences0302 clinical medicineReading (process)language0501 psychology and cognitive sciencesPsychology (miscellaneous)PsychologyAssociation (psychology)030217 neurology & neurosurgeryCognitive psychologymedia_common
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Does visual letter similarity modulate masked form priming in young readers of Arabic?

2018

Available online 19 January 2018 Supplementary data associated with this article can be found, in the online version, at https://doi. org/10.1016/j.jecp.2017.12.004. Supplementary data associated with this article can be found, in the online version, at https://doi. org/10.1016/j.jecp.2017.12.004. We carried out a masked priming lexical decision experiment to study whether visual letter similarity plays a role during the initial phases of word processing in young readers of Arabic (fifth graders). Arabic is ideally suited to test these effects because most Arabic letters share their basic shape with at least one other letter and differ only in the number/position of diacritical points (e.g.…

MaleRoot (linguistics)Lexical decisionWord processingDecision MakingExperimental and Cognitive Psychology050105 experimental psychology03 medical and health sciences0302 clinical medicineSimilarity (psychology)Repetition PrimingDevelopmental and Educational PsychologyLexical decision taskHumans0501 psychology and cognitive sciencesChildVisual similarityLanguage05 social sciencesDeveloping readersSemitic languagesLinguisticsPattern Recognition VisualReadingWord recognitionLexical accessMasked primingPsychologyPriming (psychology)030217 neurology & neurosurgeryWord (group theory)
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