288 research outputs found
Enhance Linux Security Server Misconfigurations and hardening Methods
The calamity begins if an attacker successfully compromises a system and gains access to high-level privileges. This paper presents and addresses a vulnerable Linux server with typical flaws and configuration errors. This paper aims to show how these widespread vulnerabilities might be used by an attacker to compromise the server. In order to prevent building and setting up a Linux server with risks and low security, as well as to guarantee the integrity and confidentiality of user and customer information, this paper instructs aspiring system administrators and developers on how to avoid making such errors in their initial configuration for this servers set of examples
Polyvinylidene Difluoride Piezoelectric Electrospun Nanofibers: Review in Synthesis, Fabrication, Characterizations, and Applications
This review article highlights the methods and principles used for PVDF nanofiber creation and the use of these nanofibers in different fields by utilizing its piezoelectric performance, etc. The studies include different techniques to improve the alignment and piezoelectric behavior of nanofibers. The pressure versus sensitivity behavior of PVDF substrate is thoroughly analyzed. The optimum conditions (of experimental parameters) of the electrospinning technique are carefully studied to improve the structure, alignment, and performance of the generated nanofiber mats. In addition to experimental methods, the preparation of nanocomposites with carbon nanotubes (CNTs) also can improve the structure, alignment, and piezoelectric performance. The characterization tools used for the analyses of fabricated nanofibers are also discussed, in addition, to analyze the piezoelectric results of the targeted nanocomposite
Promote the Practice of Global Pioneering Orientation for Employees of the University of Palestine
This study aims to identify the strengthening of the global entrepreneurial orientation practice for employees at the University of Palestine, where the researchers used the descriptive and analytical approach, through a questionnaire distributed to a sample of employees at the University of Palestine, where the size of the study population is (234) employees and the sample size is (117) Employees, of whom (90) employees responded. The study found a set of results, the most important of which are: that there is a good degree of global entrepreneurial orientation for employees, as the percentage reached (70.25%), and the results also showed that there are no statistically significant differences in the smart university transformation and their impact on the global entrepreneurial trend according to personal and organizational data. The study presented a set of recommendations, the most important of which are: The need to work to enhance the global entrepreneurial orientation of the university's employees
Digital Reputation in the University Of Palestine: An Analytical Perspective of Employees' Point Of View
This study aims to identify the digital reputation at the University of Palestine: an analytical perspective of the employees ’point of view, where the researchers used the descriptive and analytical approach, through a questionnaire distributed to a sample of employees at the University of Palestine, where the size of the study population is (234) employees, and the size of The sample is (117) employees, of whom (90) employees responded. The study provided a theoretical framework for what the writers and researchers presented about the study variables, as well as a practical analytical framework for the opinions of employees at the University of Palestine. The digital reputation was expressed as an independent variable through its four indicators (feeling about the organization (satisfaction), admiration and respect, and trust, and social responsibility). The study found a set of results, the most important of which are: the existence of a high degree of digital reputation at the University of Palestine from the viewpoint of employees, and the absence of differences in the opinions of the study sample about digital reputation according to demographic variables. The study presented a set of recommendations, the most important of which are: The need for universities to enhance their digital reputation and raise its level
Economic Growth and Internet Usage Impact on Publication Productivity among ASEAN’s and World’s Best Universities
Measuring the number of papers which are published each year, publication productivity is the factor which shows the reputation of universities and countries. However, the effect of growing economy and using internet on the publication productivity in Asian countries has not been discovered yet. The present research is going to figure out the publication productivity among the elite universities in Asian countries and also ten top universities around the world in the last twenty years (from 1993 to 2012). Furthermore, the current research is aimed to study the relationship among publication, gross domestic product (GDP) and internet usage. It is worth to mention that the publication of the top Ten Malaysian Universities was regarded for the similar period of time. To get the exact numbers of documents like papers, conference articles, review papers and letters which are published by the universities in the last twenty years, the writer of the same paper used the Science Direct database. Moreover, the data for GDP and the number of internet usage was collected through the World Bank database (World Data Bank).To compare all kinds of publications,one-way ANOVA was used and to investigate the impact of economic growth and internet usage on publication productivity, multiple regression analysis was applied.The results showed that the rate of publication growth was 1.9, 20.9, and 65.5 in top universities in the world, ASEAN countries and Malaysia, respectively.The results also showed that there was a positive and significant correlation between GDP and the number of internet users with the number of publications in ASEAN and Malaysian universities. Internet usage had much more influence in comparison with the GDP in predicting the number of publications among these groups except for top ten Malaysian universities from 2003 to 2012. In summary, publication trends in top ten Malaysian and ASEAN universities are promising. However, policy makers and science managers should spend much more percentage of their GDP on Internet facilities and research studies that their outputs lead to more rapid economic growth and internet usage
Enhancing the Competitive Advantage in the University of Palestine: Between Reality and Ambition
This study aims to identify enhancing the competitive advantage in the University of Palestine: Reality and Ambition, as the researchers used the descriptive and analytical method, through a questionnaire distributed to a sample of employees at the University of Palestine, where the size of the study population is (234) employees, and the size of the sample (117) employees, of whom (90) responded. The study provided a theoretical framework for what the writers and researchers presented about the study variable, as well as an analytical practical framework for the opinions of employees at the University of Palestine. The study reached a set of results, the most important of which are: the presence of a high degree of competitive advantage in the University of Palestine from the viewpoint of the employees, and the absence of differences in the opinions of the study sample about the study variables for the demographic variables. The study presented a set of recommendations, the most important of which are: The necessity of working to enhance the university's competitive advantage by enhancing the human capital and knowledge of the university
The Level of Creativity at the University of Palestine from the Employees Point of View
Abstract: This study aims to identify the level of creativity in the University of Palestine from the point of view of the employees, as the researchers used the descriptive and analytical method, through a questionnaire distributed to a sample of employees at the University of Palestine, where the size of the study population is (234) employees, and the size of the sample (117) employees, of which (90) employees responded. The study reached a set of results, the most important of which are: A high degree of creativity from the employees 'point of view, and the study confirmed that there were no differences in the level of creativity at the University of Palestine from the Employees point of view, according to demographic variables. The study presented a set of recommendations, the most important of which are: The need for universities to enhance creativity
Chronic low back pain and its differential diagnoses: a case report
Low back pain is a common problem which accompanies a large part of the population. It is estimated that up to 84% of adults will have low back pain at some point in their lives. Rarely, low back pain may be the first manifestation of a serious illness. This case report presents the clinical history of a 79 year-old male, with multiple comorbities, including a report of a discal hernia treated by surgery approximately 30 years before presentation, with residual low back pain since then. The pain was progressively worsening, associated with loss of muscle strength and paresthesia in the right lower limb, with significant weight loss. During screening, significant anemia and acute kidney injury with associated hypercalcemia were observed. A spine CT scan revealed a large expansile lesion obliterating the medullary canal at T8/T9 segment. A monoclonal spike in protein electrophoresis was found, along with sparse lytic lesions in long bones leading to the diagnosis of multiple myeloma. Therefore, this report highlights the importance of considering different differential diagnoses as a cause of low back pain. The correct determination of the etiology is essential for adequate clinical management and improvement of the patient's quality of life
The Palestinian primary ciliary dyskinesia (PCD) cohort: clinical, diagnostic and genetic spectrum
Background: Diagnostic testing for PCD started in 2013 in Palestine. We aimed to describe the clinical, diagnostic and genetic spectrum of the Palestinian PCD cohort.
Methods: 390 individuals with symptoms suggestive of PCD and 74 family members underwent nasal nitric oxide (nNO); and/or transmission electron microscopy (TEM); and/or PCD genetic panel or whole exome testing. Clinical characteristics were collected close to diagnosis including FEV1 GLI z-scores and BMI z-scores.
Results: 82 had a definite positive PCD diagnosis (TEM and/or genetics) and 103 were highly likely (Kartagener’s and/or low nNO). Positive cases (n=82) had median age of 13.5 years (range 0-43), were highly consanguineous (95%) and 100% Arabic descent. Clinical features included persistent wet cough (95%), neonatal respiratory distress (79%), clubbing (21%) and situs inversus (41%). Lung function at diagnosis was already impaired FEV1 z-score mean -1.49 (sd=1.79) and BMI z-score mean -0.30 SD=1.4. 69 families were genotyped. 59 individuals from 42 families (60%) had mutations in 14 PCD-genes; CCDC39 (26% of families), DNAH11 (17%) and LRRC6 (12%) were the most common. 16% had mutations in candidate genes, 24% had no variants identified. 100% of variants were homozygous. TEM defects and genotype associations were as expected.
Conclusions: Despite limited local resources, collaborations during the last 7-years have facilitated detailed geno- and phenotyping of one of the largest PCD cohorts globally. nNO identifies likely cases and targeted genetic testing, conducted locally, can now identify specific mutations in known families
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