130 research outputs found
IoT Safeguarding in Saudi Tourism Sector: Crafting a Preliminary Security Model for Enhancing Cyber Resilience
Incorporating the Internet of Things (IoT) has transformed technological landscapes, facilitating seamless communication across diverse devices and systems. However, this increased connectivity exposes critical sectors, including government and tourism, to elevated cybersecurity risks. There is a lack of knowledge regarding how organizations within the Saudi tourism sector address the cybersecurity risks associated with IoT systems. While much of the existing IoT literature concentrates on adopting IoT systems, a better understanding can be attained by proposing a preliminary research model encompassing the most significant factors influencing IoT security and related cybersecurity attacks. Despite limited empirical research on IoT security adoption in the Saudi tourism sector, this study seeks to address this gap. Motivated by this concern, this research investigates IoT security among Saudi organizations in the government tourism sector by developing a research model. inspired by the Technology Acceptance Model (TAM) literature. The model incorporates a total of eight factors (privacy, confidentiality, data integrity, access control, availability, trust, IoT standards and policies, and IoT Awareness) and seven cybersecurity attacks (denial of service (DoS & DDoS), replay attack, eavesdropping attack, man-in-the-middle (MiTM) attack, spoofing attack, Sybil attack, and physical attack) identified from various literature sources. The proposed research model is a valuable tool for understanding IoT security in Saudi tourism, offering guidelines for organizations considering introducing IoT security measures. These guidelines highlight specific factors that tourism organizations should consider, enhancing the likelihood of successful IoT security adoption in the tourism context. Additionally, this study encourages IoT researchers to replicate the research in another industry sector within Saudi Arabia or other countries, particularly within the Arabian Gulf region. 
How does the new developed curriculum affect the perception of medical graduates at King Abdulaziz University about professionalism?
Background: In 2007 Faculty of Medicine (FOM), King Abdulaziz University (KAU) reoriented the medical curriculum and integrated professionalism. This study was conducted to assess the perception of professionalism attitudes by medical graduates who graduated from the new curriculum that incorporated the professionalism module and compare it to those who did not.Methods: This cross sectional study was conducted at the teaching hospital of the FOM, KAU using a modified version of the well-constructed questionnairedesigned to assess the student’s attitudes toward professionalism was distributed to all interns in the academic year of 2013-2014. Statistical analysis was carried out using Statistical Package of Social Science (SPSS) version 16.Results: Higher mean scores with significant differences in all aspects of professionalism were observed in interns graduated from the new curriculum when compared to those of the old one and was previously reported by Eldeek et al., (2012). The importance of adhering to high ethical and moral behavior and the need of humanity in the efficacy of the medical practice were the most significant attributes with effect size of 0.64 and 0.58 respectively. Studying in the clinical years represented the first helpful source of the participant to develop their perception about professionalism. Conclusion: The new developed curriculum at the FOM succeeded to improve the graduate perception about professionalism.
Is it all just an Akt you’d be SMAD to believe it!:Role of TGFβ1 in oral cancer metastasis
Understanding participation of children with cerebral palsy in family and recreational activities.
AIMS: The primary aim of this study was to determine the effect of age, sex, gross motor, manual ability, and communication functions on the frequency and enjoyment of children\u27s participation in family and recreational activities. The secondary aim was to determine the relationships between motor and communication functions and participation.
METHODS: Participants were 694 children, 1.5-12 years old, with cerebral palsy (CP) and their parents across the US and Canada. Parents rated children\u27s frequency and enjoyment of participation using the Child Engagement in Daily Life measure. Parents and therapists identified children\u27s level of function using Gross Motor Function Classification System (GMFCS), Manual Ability Classification System (MACS), and Communication Function Classification System (CFCS).
RESULTS: Differences in frequency and enjoyment of participation were found based on children\u27s GMFCS, MACS, and CFCS levels but not age or sex. Children with higher gross motor, manual, and communication functions had higher frequency and enjoyment of participation, compared to children with lower functions. Frequency of participation was associated with GMFCS and CFCS levels whereas enjoyment of participation was only associated with CFCS level.
IMPLICATIONS: Knowledge of child\u27s gross motor, manual ability, and communication functions of children with CP is important when setting goals and planning interventions for participation
Quantitative evaluation of ontology design patterns for combining pathology and anatomy ontologies.
Data are increasingly annotated with multiple ontologies to capture rich information about the features of the subject under investigation. Analysis may be performed over each ontology separately, but recently there has been a move to combine multiple ontologies to provide more powerful analytical possibilities. However, it is often not clear how to combine ontologies or how to assess or evaluate the potential design patterns available. Here we use a large and well-characterized dataset of anatomic pathology descriptions from a major study of aging mice. We show how different design patterns based on the MPATH and MA ontologies provide orthogonal axes of analysis, and perform differently in over-representation and semantic similarity applications. We discuss how such a data-driven approach might be used generally to generate and evaluate ontology design patterns.National Institutes of Health (AG038070-05, for the
Shock Aging Center) King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. URF/1/3454-01-01 and FCC/1/1976-08-01. King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. FCS/1/3657-02-0
Reduced Androgen Receptor Expression Accelerates the Onset of ERBB2 Induced Breast Tumors in Female Mice
Androgen receptor (AR) is commonly expressed in both the epithelium of normal mammary glands and in breast cancers. AR expression in breast cancers is independent of estrogen receptor alpha (ERα) status and is frequently associated with overexpression of the ERBB2 oncogene. AR signaling effects on breast cancer progression may depend on ERα and ERBB2 status. Up to 30% of human breast cancers are driven by overactive ERBB2 signaling and it is not clear whether AR expression affects any steps of tumor progression in this cohort of patients. To test this, we generated mammary specific Ar depleted mice (MARKO) by combining the floxed allele of Ar with the MMTV-cre transgene on an MMTV-NeuNT background and compared them to littermate MMTV-NeuNT, Arfl/+ control females. Heterozygous MARKO females displayed reduced levels of AR in mammary glands with mosaic AR expression in ductal epithelium. The loss of AR dramatically accelerated the onset of MMTV-NeuNT tumors in female MARKO mice. In this report we show that accelerated MMTV-NeuNT-dependent tumorigenesis is due specifically to the loss of AR, as hormonal levels, estrogen and progesterone receptors expression, and MMTV-NeuNT expression were similar between MARKO and control groups. MMTV-NeuNT induced tumors in both cohorts displayed distinct loss of AR in addition to ERα, PR, and the pioneer factor FOXA1. Erbb3 mRNA levels were significantly elevated in tumors in comparison to normal mammary glands. Thus the loss of AR in mouse mammary epithelium accelerates malignant transformation rather than the rate of tumorigenesis
Longitudinal Changes in Physical Caregiving for Parents of Children with Cerebral Palsy.
Aims: To determine changes in physical caregiving for parents of children with cerebral palsy (CP) over a two-year period based on children’s gross motor function level and age.
Methods: 153 parents of children with CP rated their physical caregiving using the Ease of Caregiving for Children three times over two years. Parents and assessors classified children’s gross motor function using the Gross Motor Function Classification System (GMFCS). Physical caregiving was compared at three test times among parents of children grouped by GMFCS level (I, II–III, and IV–V) and age (1.7–5.9 and 6–11 years) using a three-way mixed ANOVA.
Results: Among all analyses, a two-way interaction was found between children’s GMFCS level and test time on ease of caregiving, p \u3c 0.01. Change over two-year period was found for parents of children in level I and II–III, p \u3c 0.01, but not parents of children in levels IV–V. At each test time, parents of children in level I reported the greatest ease of caregiving followed by parents of children in levels II–III, and levels IV–V, who reported the lowest ease of caregiving, p \u3c 0.001.
Conclusions: Findings support evaluation and monitoring of physical caregiving for parents of children with CP over time
Semi-metric spaces and fixed points of α - φ -contractive maps
A negative answer to an open problem is provided. Fixed point results for α -φ
-contractive mappings in semi-metric spaces are proved. To show the generality of this results, examples are given. Finally, an application of this result to probabilistic spaces is derived
SARS-CoV-2 and Coronavirus Ancestors under a Molecular Scope
The Pandemic of COVID-19 has been thoroughly followed and discussed on many levels due to the high level of attention that it has brought by its effect on the world. While this disease might seem like to arise out of the blue, we will shed light on COVID-19 disease which is caused by the virus SARS-CoV2 and belong to family of coronaviruses. We will discuss current knowledge about SARS-CoV2 emergence, diagnosis, its mode of action, and genomic information, For an antiviral treatment to be used, it should be preceded by a foundation of information about the virus genome and its family as discussed in this review
Nail abnormalities identified in an ageing study of 30 inbred mouse strains.
In a large-scale ageing study, 30 inbred mouse strains were systematically screened for histologic evidence of lesions in all organ systems. Ten strains were diagnosed with similar nail abnormalities. The highest frequency was noted in NON/ShiLtJ mice. Lesions identified fell into two main categories: acute to chronic penetration of the third phalangeal bone through the hyponychium with associated inflammation and bone remodelling or metaplasia of the nail matrix and nail bed associated with severe orthokeratotic hyperkeratosis replacing the nail plate. Penetration of the distal phalanx through the hyponychium appeared to be the initiating feature resulting in nail abnormalities. The accompanying acute to subacute inflammatory response was associated with osteolysis of the distal phalanx. Evaluation of young NON/ShiLtJ mice revealed that these lesions were not often found, or affected only one digit. The only other nail unit abnormality identified was sporadic subungual epidermoid inclusion cysts which closely resembled similar lesions in human patients. These abnormalities, being age-related developments, may have contributed to weight loss due to impacts upon feeding and should be a consideration for future research due to the potential to interact with other experimental factors in ageing studies using the affected strains of mice.American Hair Research Society Mentorship Grants (to SL and AM)
Ellison Medical Foundation (to JPS)
National Institutes of Health (AG025707, for the Shock Aging Center). The Jackson Laboratory Shared Scientific Services were supported in part by a Basic Cancer Center Core Grant from the National Cancer Institute (CA034196)
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