Catalogue Search | MBRL
Search Results Heading
Explore the vast range of titles available.
MBRLSearchResults
-
DisciplineDiscipline
-
Is Peer ReviewedIs Peer Reviewed
-
Item TypeItem Type
-
SubjectSubject
-
YearFrom:-To:
-
More FiltersMore FiltersSourceLanguage
Done
Filters
Reset
51
result(s) for
"Khatib, Salim"
Sort by:
Factors affecting success of political marketing: a Jordanian electorate point of view
2012
This study aims to examine basic factors that may influence success of political marketing. Drawing on relevant literature, the author empirically tested the relationship between study variables on a sample of 650 Jordanian respondents. The findings indicate that market segmentation and targeting, candidate positioning and building strong image (to candidate and party) have a positive and significant effect on the success of political marketing. The study findings indicate that candidate/party image exerted the strongest effect on the success of political marketing. Results showed also that conducting efficient market research and adopting a market-oriented strategy had no influence on the success of political marketing. These findings have significant implications for both Jordanian candidates and parties that may be taken into consideration when developing their political campaigns.
Journal Article
Mono- versus polyaxial locking plates in distal femur fractures – a biomechanical comparison of the Non-Contact-Bridging- (NCB) and the PERILOC-plate
by
Krüger, Antonio
,
Ruchholtz, Steffen
,
Zettl, Ralph
in
Aged
,
Aged, 80 and over
,
Biomechanical Phenomena
2014
Background
The aim of this cadaveric study was to compare a polyaxial (NCB®, Zimmer) to a fixed-angle monoaxial locking plate (PERILOC®, Smith & Nephew) in comminuted fractures of the distal femur regarding stability of the construct. Up to date there is no published biomechanical data concerning polyaxial plating in cadaveric distal femurs.
Methods
Fourteen formalin fixed femora were scanned by dual-energy x-ray absorptiometry. As fracture model an unstable supracondylar comminuted fracture was simulated. Fractures were pairwise randomly fixed either with a mono- (group A) or a polyaxial (group B) distal femur plate. The samples were tested in a servohydraulic mechanical testing system starting with an axial loading of 200 N following an increase of 200 N in every step with 500 cycles in every sequence up to a maximum of 2 000 N. The end points were implant failure or relevant loss of reduction. Data records included for each specimen time, number of cycles, axial load and axial displacement. Statistical analysis was performed using the exact Wilcoxon signed rank test.
Results
The mean donor age at the time of death was 75 years. The bone mass density (BMD) of the femurs in both groups was comparable and showed no statistically significant differences. Five bones failed before reaching the maximum applied force of 2000 N. Distribution curves of all samples in both groups, showing the plastic deformation in relation to the axial force, showed no statistically significant differences.
Conclusions
Operative stabilization of distal femur fractures can be successfully and equally well achieved using either a monoaxial or a polyaxial locking plate. Polyaxial screw fixation may have advantages if intramedullary implants are present.
Journal Article
Early exposure to digital-media and social media style content and its association with ADHD symptoms in the pediatric population
by
Islam, Afra Wasama
,
Rehman, Rana Hussain Abdul
,
Siddiuqi, Mohammed Waleed Uddin
in
Animal Models
,
Attention deficit hyperactivity disorder
,
Biomedical and Life Sciences
2026
Early exposure to social media-style digital content has become increasingly common among children and adolescents (0–21 years), with particular emphasis on early childhood, coinciding with a developmental period characterized by rapid brain growth, heightened neuroplasticity, and the maturation of attentional and executive control networks. This review synthesizes emerging epidemiological, cognitive-behavioral, and neurobiological evidence examining associations between early and intensive engagement with fast-paced, highly stimulating, reward-rich digital media and ADHD-related symptoms in the pediatric population. Epidemiological studies report small but statistically significant associations, with effect sizes that are modest and subject to substantial heterogeneity between greater screen or social-media exposure and later inattention, impulsivity, and executive dysfunction, with dose-response patterns strongest for problematic or addictive usage. Cognitive and behavioral findings indicate that rapid content switching, variable reward feedback, and media multitasking can disrupt sustained attention, working memory development, and inhibitory control. Neuroimaging and neurophysiological research further demonstrate overlapping mechanisms between ADHD neurobiology and digital-media reinforcement, including heightened ventral striatal activation, altered prefrontal functioning, and disrupted connectivity within attention and default-mode networks. These mechanisms may be moderated by sleep disruption, reduced opportunities for effortful attentional practice, and potential gene-environment interactions. Together, the evidence supports a developmental neurocognitive framework in which immature self-regulation systems may interact with highly stimulating digital environments in ways that are associated with ADHD-related behaviors. While causality cannot yet be inferred, the convergence of findings underscores the need for cautious media exposure in early childhood and highlights the importance of longitudinal, mechanistic research to clarify pathways, moderators, and targets for intervention.
Journal Article
An investigation of airline service quality, passenger satisfaction and loyalty: the case of royal jordanian airline
1998
The primary objective of this thesis is to investigate the relationship between airline service quality, passenger satisfaction and passenger loyalty. This study identifies the main factors of airline service quality, passenger satisfaction and passenger loyalty and proposes a model examining the directional relationship among these three constructs. It is based on an empirical investigation of the data collected from 500 passengers with Royal Jordanian (RJ) airline during July and August 1996. The data are analysed using a variety of statistical techniques. Factor analysis is used to identify the main factors of airline service quality and passenger loyalty. The segmentation of airline passengers according to their loyalty levels and psychographic characteristics is performed using cluster analysis techniques. LISREL 8 and path analysis techniques are used to investigate the relationships among the three constructs namely: service quality, passenger satisfaction and passenger loyalty. The key findings of the study indicate that overall service quality is highly related to both passenger satisfaction and loyalty. The relationship between passenger satisfaction and loyalty toward a specific airline is less clear An approach to the identification of the dimensions (factors) of airline services based on the stages of providing services to passengers is introduced and a loyalty measure, covering both attitudinal and behavioural aspects of loyalty, is developed and used to examine the applicability of loyalty level in determining segments in the air passenger industry. The contributions of this study to the existing literature in services marketing and consumer behaviour is assessed together with the contributions made to the air passenger industry itself. The limitations of the study are discussed and the potential for future research in the area is indicated.
Dissertation
A multinational study on the factors influencing university students’ attitudes and usage of ChatGPT
by
Barakat, Muna
,
Mohammed, Ali Haider
,
Malaeb, Diana
in
631/477/2811
,
692/1537
,
Academic Performance
2024
Artificial intelligence models, like ChatGPT, have the potential to revolutionize higher education when implemented properly. This study aimed to investigate the factors influencing university students’ attitudes and usage of ChatGPT in Arab countries. The survey instrument “TAME-ChatGPT” was administered to 2240 participants from Iraq, Kuwait, Egypt, Lebanon, and Jordan. Of those, 46.8% heard of ChatGPT, and 52.6% used it before the study. The results indicated that a positive attitude and usage of ChatGPT were determined by factors like ease of use, positive attitude towards technology, social influence, perceived usefulness, behavioral/cognitive influences, low perceived risks, and low anxiety. Confirmatory factor analysis indicated the adequacy of the “TAME-ChatGPT” constructs. Multivariate analysis demonstrated that the attitude towards ChatGPT usage was significantly influenced by country of residence, age, university type, and recent academic performance. This study validated “TAME-ChatGPT” as a useful tool for assessing ChatGPT adoption among university students. The successful integration of ChatGPT in higher education relies on the perceived ease of use, perceived usefulness, positive attitude towards technology, social influence, behavioral/cognitive elements, low anxiety, and minimal perceived risks. Policies for ChatGPT adoption in higher education should be tailored to individual contexts, considering the variations in student attitudes observed in this study.
Journal Article
Glycemic Index, Glycemic Load, and Cardiovascular Disease and Mortality
2021
In this large, international study, investigators found that participants with a broad range of carbohydrate intakes and diverse dietary patterns who consumed a diet with a high glycemic index had an increased risk of cardiovascular disease and death.
Journal Article
Modifiable risk factors, cardiovascular disease, and mortality in 155 722 individuals from 21 high-income, middle-income, and low-income countries (PURE): a prospective cohort study
2020
Global estimates of the effect of common modifiable risk factors on cardiovascular disease and mortality are largely based on data from separate studies, using different methodologies. The Prospective Urban Rural Epidemiology (PURE) study overcomes these limitations by using similar methods to prospectively measure the effect of modifiable risk factors on cardiovascular disease and mortality across 21 countries (spanning five continents) grouped by different economic levels.
In this multinational, prospective cohort study, we examined associations for 14 potentially modifiable risk factors with mortality and cardiovascular disease in 155 722 participants without a prior history of cardiovascular disease from 21 high-income, middle-income, or low-income countries (HICs, MICs, or LICs). The primary outcomes for this paper were composites of cardiovascular disease events (defined as cardiovascular death, myocardial infarction, stroke, and heart failure) and mortality. We describe the prevalence, hazard ratios (HRs), and population-attributable fractions (PAFs) for cardiovascular disease and mortality associated with a cluster of behavioural factors (ie, tobacco use, alcohol, diet, physical activity, and sodium intake), metabolic factors (ie, lipids, blood pressure, diabetes, obesity), socioeconomic and psychosocial factors (ie, education, symptoms of depression), grip strength, and household and ambient pollution. Associations between risk factors and the outcomes were established using multivariable Cox frailty models and using PAFs for the entire cohort, and also by countries grouped by income level. Associations are presented as HRs and PAFs with 95% CIs.
Between Jan 6, 2005, and Dec 4, 2016, 155 722 participants were enrolled and followed up for measurement of risk factors. 17 249 (11·1%) participants were from HICs, 102 680 (65·9%) were from MICs, and 35 793 (23·0%) from LICs. Approximately 70% of cardiovascular disease cases and deaths in the overall study population were attributed to modifiable risk factors. Metabolic factors were the predominant risk factors for cardiovascular disease (41·2% of the PAF), with hypertension being the largest (22·3% of the PAF). As a cluster, behavioural risk factors contributed most to deaths (26·3% of the PAF), although the single largest risk factor was a low education level (12·5% of the PAF). Ambient air pollution was associated with 13·9% of the PAF for cardiovascular disease, although different statistical methods were used for this analysis. In MICs and LICs, household air pollution, poor diet, low education, and low grip strength had stronger effects on cardiovascular disease or mortality than in HICs.
Most cardiovascular disease cases and deaths can be attributed to a small number of common, modifiable risk factors. While some factors have extensive global effects (eg, hypertension and education), others (eg, household air pollution and poor diet) vary by a country's economic level. Health policies should focus on risk factors that have the greatest effects on averting cardiovascular disease and death globally, with additional emphasis on risk factors of greatest importance in specific groups of countries.
Full funding sources are listed at the end of the paper (see Acknowledgments).
Journal Article
Variations in common diseases, hospital admissions, and deaths in middle-aged adults in 21 countries from five continents (PURE): a prospective cohort study
2020
To our knowledge, no previous study has prospectively documented the incidence of common diseases and related mortality in high-income countries (HICs), middle-income countries (MICs), and low-income countries (LICs) with standardised approaches. Such information is key to developing global and context-specific health strategies. In our analysis of the Prospective Urban Rural Epidemiology (PURE) study, we aimed to evaluate differences in the incidence of common diseases, related hospital admissions, and related mortality in a large contemporary cohort of adults from 21 HICs, MICs, and LICs across five continents by use of standardised approaches.
The PURE study is a prospective, population-based cohort study of individuals aged 35–70 years who have been enrolled from 21 countries across five continents. The key outcomes were the incidence of fatal and non-fatal cardiovascular diseases, cancers, injuries, respiratory diseases, and hospital admissions, and we calculated the age-standardised and sex-standardised incidence of these events per 1000 person-years.
This analysis assesses the incidence of events in 162 534 participants who were enrolled in the first two phases of the PURE core study, between Jan 6, 2005, and Dec 4, 2016, and who were assessed for a median of 9·5 years (IQR 8·5–10·9). During follow-up, 11 307 (7·0%) participants died, 9329 (5·7%) participants had cardiovascular disease, 5151 (3·2%) participants had a cancer, 4386 (2·7%) participants had injuries requiring hospital admission, 2911 (1·8%) participants had pneumonia, and 1830 (1·1%) participants had chronic obstructive pulmonary disease (COPD). Cardiovascular disease occurred more often in LICs (7·1 cases per 1000 person-years) and in MICs (6·8 cases per 1000 person-years) than in HICs (4·3 cases per 1000 person-years). However, incident cancers, injuries, COPD, and pneumonia were most common in HICs and least common in LICs. Overall mortality rates in LICs (13·3 deaths per 1000 person-years) were double those in MICs (6·9 deaths per 1000 person-years) and four times higher than in HICs (3·4 deaths per 1000 person-years). This pattern of the highest mortality in LICs and the lowest in HICs was observed for all causes of death except cancer, where mortality was similar across country income levels. Cardiovascular disease was the most common cause of deaths overall (40%) but accounted for only 23% of deaths in HICs (vs 41% in MICs and 43% in LICs), despite more cardiovascular disease risk factors (as judged by INTERHEART risk scores) in HICs and the fewest such risk factors in LICs. The ratio of deaths from cardiovascular disease to those from cancer was 0·4 in HICs, 1·3 in MICs, and 3·0 in LICs, and four upper-MICs (Argentina, Chile, Turkey, and Poland) showed ratios similar to the HICs. Rates of first hospital admission and cardiovascular disease medication use were lowest in LICs and highest in HICs.
Among adults aged 35–70 years, cardiovascular disease is the major cause of mortality globally. However, in HICs and some upper-MICs, deaths from cancer are now more common than those from cardiovascular disease, indicating a transition in the predominant causes of deaths in middle-age. As cardiovascular disease decreases in many countries, mortality from cancer will probably become the leading cause of death. The high mortality in poorer countries is not related to risk factors, but it might be related to poorer access to health care.
Full funding sources are listed at the end of the paper (see Acknowledgments).
Journal Article