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201.
Al-Rahmi Ali Mugahed Al-Rahmi Waleed Mugahed Alturki Uthman Aldraiweesh Ahmed Almutairy Sultan Al-Adwan Ahmad Samed 《Education and Information Technologies》2022,27(6):7805-7826
Education and Information Technologies - Mobile-learning (M-learning) apps have grown in popularity and demand in recent years and have become a typical occurrence in modern educational systems,... 相似文献
202.
Yahaya Jamaiah Fadzli Sazrol Deraman Aziz Yahaya Noor Zaitun Halim Lilia Rais Izhar Abadi Ibrahim Ibrahim Siti Rohana Ahmad 《Education and Information Technologies》2022,27(4):4771-4791
Education and Information Technologies - Pollution from quarry activities has a substantial environmental impact on many countries. This issue should be addressed accordingly as its impact may... 相似文献
203.
Rizwan Ahmad Anil K. Tripathi Payal Tripathi Ranjana Singh Sushma Singh Raj K. Singh 《Indian journal of clinical biochemistry : IJCB》2008,23(4):328-333
Chronic myeloid leukemia is a myeloproliferative disorder with a unique rearrangement, the Philadelphia chromosome. Oxidative
stress, a pervasive condition of an increased number of reactive oxygen species, is now recognized to be prominent feature
of various diseases and their progression. Thus antioxidants, which control the oxidative stress state, represent a major
line of defense regulating overall true state of health. The relationship between antioxidants status and levels of well-known
markers of oxidative stress that are measured as lipid peroxides and oxidized proteins reflect better health indices and postures.
The aim of this study was to evaluate the role of oxidative stress in pathophysiology of Chronic myeloid leukemia by measuring
the circulating plasma lipid peroxide levels in terms of malonyldialdehyde, total lipid hydroperoxide and oxidized proteins
as protein carbonyl whereas antioxidant status were estimated in terms of reduced glutathione and total thiol in plasma of
Chronic myeloid leukemia patients. The present study included 47 Chronic myeloid leukemia patients and 20 age-and sex-matched
healthy subjects. Out of 47 Chronic myeloid leukemia patients, 31 were in chronic phase (CML-CP) and 16 in accelerated phase
(CML-AP). The median age of Chronic myeloid leukemia patients was 33 years and that of controls was 32 years. Oxidative stress
and antioxidant status in plasma were evaluated by spectrophotometric procedures. There was a significant increase (p<0.05)
in plasma malonyldialdehyde, total lipid hydroperoxide and protein carbonyl levels in Chronic myeloid leukemia patients as
compared to healthy subjects. Our results also showed that plasma malonyldialdehyde and protein carbonyl levels were markedly
elevated (p<0.05) in both chronic phase (CML-CP) and accelerated phase (CML-AP) as compared to healthy volunteers. Antioxidant
status was found to be significantly decreased (p<0.05) in Chronic myeloid leukemia patients and its phases as compared to
healthy participants. It could be concluded that oxidative stress may be associated with the pathophysiology of Chronic myeloid
leukemia. 相似文献
204.
205.
Al-Adwan Ahmad Samed Yaseen Husam Alsoud Anas Abousweilem Fayrouz Al-Rahmi Waleed Mugahed 《Education and Information Technologies》2022,27(3):3567-3593
Education and Information Technologies - The key objective of this study was to reveal the key factors that impact university students’ continued usage intentions with respect to Learning... 相似文献
206.
Haseeb Ahmad Khan Samia Hasan Sobki Abdullah Saleh Alhomida Shaukat Ali Khan 《Indian journal of clinical biochemistry : IJCB》2007,22(1):65-70
This study reports the utilization of serum fructosamine and blood glucose for the screening of gestational diabetes mellitus
(GDM). Blood samples from 165 pregnant women were analyzed for fasting blood glucose (FBG), random blood glucose (RBG) and
serum fructosamine. The actual fructosamine levels were corrected for serum protein (c-Fruct) for more precise presentation.
Two cut-off values of FBG (>5.3 mmol/L and >7.0 mmol/L) and RBG (>7.8 mmol/L and >11.0 mmol/L) were used to classify hyperglycemic
subjects for subsequent evaluation. The average values±standard deviations for FBG, RBG and cFruct were 5.865±1.95, 7.767±3.21
and 2.387±0.47 mmol/L, respectively. FBG levels were significantly correlated with RBG (Pearson correlation=0.597, P<0.001).
Significant correlations were also observed between cFruct and FBG (Pearson correlation=0.673, P<0.001) or RBG (Pearson correlation=0.641,
P<0.001). Out of 165 subjects, 24 (14.5%) cases were classified as hyperglycemic on the basis of FBG>7.0 mmol/L or RBG>11.0
mmol/L; use of lower cut-off values resulted higher frequencies of hyperglycemia. Whereas, a combined criteria of FBG>5.3
mmol/L and cFruct >2.5 mmol/L predicted 35 patients as the most probable hyperglycemic as compared to 32 patients identified
using the criteria of RBG >7.8 mmol/L and cFruct >2.5 mmol/L. These criteria were associated with 4.8% and 3.6% false-positivity
at the expense of 3.6% and 3.0% false-negative outcomes, respectively. The levels of FBG, RBG and cFruct were significantly
higher in hyperglycemic groups (irrespective of grouping criteria) as compared to the respective normal groups. In conclusion,
these findings clearly indicate that the paired values of cFruct with FBG or RBG could help in filtering high-risk individuals
for OGTT and therefore avoiding a unnecessary OGTT. 相似文献
207.
Neda Nasiri Ahmad Fakharian Mohammad Bagher Menhaj 《Journal of The Franklin Institute》2021,358(10):5185-5212
This paper presents a novel combined State Dependent Riccati Equation (SDRE) / Function Approximation Technique (FAT)-based control design for nonlinear uncertain systems. The SDRE is employed to construct an optimal controller and the function approximation technique is utilized to estimate time-varying disturbances and uncertainties. Moreover, a robust term in the proposed control law compensates for the truncation error. The closed-loop stability and boundedness of the tracking error and FAT weights approximation error are proved in the sense of Lyapunov, with consideration of truncation error. Due to the great importance of the adequate performance of transient response from practical point of view, performance evaluation has been accomplished. The proposed scheme is computationally simple due to utilizing the FAT to represent uncertainties and disturbances as a function of time. Compared with the SDRE based SMC, the proposed controller is superior in terms of capability to track a fast and highly complicated trajectory and no need to determine time-varying disturbances and uncertainties bounds. The case study is a Selective Compliant Articulated Robot for Assembly (SCARA) flexible joint manipulator as a representative of highly nonlinear, coupled, large robotic systems. Simulation results easily verify the effectiveness and superiority of the proposed controller. 相似文献
208.
An electronic performance support system (EPSS) is a method that integrates learning and task performance into one single action by providing information and guidance during performance. Wide‐range EPSS effectiveness research has been conducted by Tel Aviv University in tandem with a large telecommunications firm implementing EPSS solutions. The objective was to identify the factors that were instrumental in the realization of EPSS's potential in corporate settings. This article focuses on effectiveness differences in two common organizational environments: the learning and the working domains. 相似文献