Publications by authors named "Ahmed M Abdel Khalek"

Research on the association between religiosity and personality with Arab participants is rare. The aim of the present study was to explore this association using a sample (N = 623) of college students from Sudan. They responded to the Arabic Scale of Intrinsic Religiosity and the Arabic Big-Five Personality Inventory.

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Purpose: To evaluate the added value of the diffusion tensor imaging (DTI) parameters to abbreviated breast MRI protocol in differentiating recurrent breast cancer from post-operative changes in cases of breast conservative surgery (BCS).

Methods: This prospective study was approved by our institutional review board. Written informed consent was obtained in all patients.

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Objectives: Evaluating the bond strength of two ceramic materials to dentin after Er,Cr:YSGG laser debonding. Would laser debonding affect the bond strength of ceramic to dentin?

Materials And Methods: Recently extracted human molars were ground to expose dentin. Forty square shaped samples were prepared from CAD/CAM ceramic blocks.

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This study aimed to investigate the effects of dietary chitosan supplementation on the growth performance, carcass traits, and some physiological parameters of weaned New Zealand White rabbits (NZW). Sixty-four NZWs were randomly distributed into four dietary experimental groups (n = 16) and fed a basal diet ad libitum for eight weeks: under Egyptian conditions. The basal diet without chitosan served as the control group, while the other three groups were fed diets containing 0.

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The present study was conducted to determine the effects of dietary chitosan supplementation on sexual behaviour responses, testicular development, and semen quality traits of New Zealand White (NZW) rabbit bucks. Twenty-four 5-week-old rabbit bucks were used in this experiment. Animals were grouped into four equal experimental groups: the control group was fed only on a basal diet, whereas the other groups were fed the basal diet supplemented with three levels of chitosan at 0.

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Background: The resulting tissue hypoxia and increased inflammation secondary to severe coronavirus disease 2019 (COVID-19) combined with viral load, and other baseline risk factors contribute to an increased risk of severe sepsis or co-existed septic condition exaggeration.

Aim: To describe the clinical, radiological, and laboratory characteristics of a small cohort of patients infected by severe acute respiratory syndrome coronavirus 2 who underwent percutaneous drainage for septic complications and their post-procedural outcomes.

Methods: This retrospective study consisted of 11 patients who were confirmed to have COVID-19 by RT-PCR test and required drain placement for septic complications.

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Aim: The main aims of this study were to explore the differences between seven Egyptian clinical and non-clinical samples in death depression, as well as to estimate gender-related differences.

Design: A cross-sectional study.

Methods: The Death Depression Scale (DDS) was administered to seven groups ( = 765) of Egyptian normal (non-clinical) patients, anxiety outpatients, schizophrenic inpatients (men and women) and addicts (men only) in individual sessions.

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Aim: The aims of this study were as follows: (a) to investigate the psychometric properties of the Love of Life Scale (LLS); (b) to explore sex differences in LLS scores; (c) to explore LLS correlations with spiritual health and psychological well-being; and (d) to compare the mean LLS score with previous studies.

Design: A cross-sectional study.

Methods: A sample of 191 Iranian psychiatric outpatients was recruited from clinics at the School of Behavioral Sciences and Mental Health (Tehran Institute of Psychiatry), which is affiliated with the Iran University of Medical Sciences.

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Many of us "see red," "feel blue," or "turn green with envy." Are such color-emotion associations fundamental to our shared cognitive architecture, or are they cultural creations learned through our languages and traditions? To answer these questions, we tested emotional associations of colors in 4,598 participants from 30 nations speaking 22 native languages. Participants associated 20 emotion concepts with 12 color terms.

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Background: There have been few studies of religiosity in adolescents and even fewer in Muslim cultures.

Aims: The present study investigated the associations of religiosity with subjective well-being (WB, and mental and physical health) using samples of Egyptian children and adolescents.

Method: Samples of Egyptian preparatory school children and secondary school children were administered questions concerning religiosity, mental and physical health and satisfaction with life.

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Purpose: We aim to illustrate the diagnostic performance of diffusional kurtosis imaging (DKI) in the diagnosis of gliomas.

Methods: A review protocol was developed according to the (PRISMA-P) checklist, registered in the international prospective register of systematic reviews (PROSPERO) and published. A literature search in 4 databases was performed using the keywords 'glioma' and 'diffusional kurtosis'.

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Several research studies from the USA and Western industrialized countries have reported a negative association between religiosity and anxiety. However, Arabic studies using mainly Muslim samples are limited. The objective of the present study was to apply meta-analysis statistical techniques to 10 Arabic studies of this association.

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Purpose: This study was designed to evaluate the role of multiparametric magnetic resonance imaging (MRI) for differentiation of parotid gland neoplasms.

Methods: Prospective study was conducted upon 52 consecutive patients (30 men, 22 women; aged 24-78 years; mean, 51 years) with parotid tumours that underwent multiparametric MRI using combined static MRI, dynamic contrast enhanced (DCE) MRI, and diffusion-weighted imaging (DWI). The static MRI parameter, time signal intensity curves (TIC) derived from DCE-MRI, and apparent diffusion coefficient (ADC) values of parotid tumours were correlated with histopathological findings.

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The present investigation sought to explore the difference in death anxiety between two different samples of students who studied at the same university in Lebanon in 1998 and 2015. Based on the changes in the social, economic, and political conditions that took place over these 17 years, it is possible to predict the change in death anxiety during this period. The participants in the 1998 study included 228 undergraduates, whereas the 2015 sample consisted of 292 students.

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Objectives: Obsession is one of the important aspects in death distress. The objective of this study was to estimate the reliability, validity, and factorial structure of the Farsi version of the Death Obsession Scale (DOS).

Methods: A convenience sample of 106 Iranian nurses from two hospitals at Tehran city, Iran was recruited.

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Objectives: Death fear is the main subject in thanatology. Several researchers have defined different reasons for fear of death. This study aimed to explore the performance of the Farsi version of the Reasons for Death Fear Scale (RDFS) among a convenience sample of Iranian nurses ( = 106).

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The aim of this study was to describe the psychometric properties of the Farsi Form of the Arabic Scale of Death Anxiety (ASDA). The original scale was first translated into Farsi by language experts using the back translation procedure and then administered to a total of 252 Iranian college students and 52 psychiatric outpatients from psychiatric and psychological clinics. The one-week test-retest reliability of the Farsi version in a sample of college students was 0.

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Background: Death anxiety is regarded as a risk and maintaining factor of psychopathology. While the Arabic Scale of Death Anxiety (ASDA) is a brief, commonly used assessment, such a tool is lacking in Chinese clinical practice.

Aim: The current study was conducted to develop a Chinese version of the ASDA, i.

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