This study aimed to investigate the role of storytelling in promoting students＇ oral proficiency from the teachers＇ perspectives in Tulkarrn District. To achieve this aim, the researchers prepared a ...30-item questionnaire which was distributed among 50 male and female governmental school teachers, who teach English for Palestine for Grade 11 in Tulkarm District, during the second semester of the scholastic year 2011-2012. The researchers used different statistical procedures which fit the collected data. The results of the study revealed that most of English teachers agreed that storytelling plays a remarkable role in promoting the 1 lth grade students＇ oral proficiency in the classroom. In the light of these results, the researchers recommended using storytelling to motivate students to speak in the classroom, and to conduct studies on digital storytelling as an aid in promoting oral proficiency.
Highly optimized copper chromium mixed oxides, derived from mixed cupper/chromium metal organic frameworks (Cu/Cr-MOF), have been successfully synthesized by calcination of parent chromium metal ...organic frameworks (Cr-MIL-101), cupper metal organic frameworks (Cu-BDC), and mixed Cu/Cr-MOFs in air. The as-synthesized MOF derivatives (CuxCr(1-x)-MOF-D) were characterized using nitrogen adsorption desorption isotherms (BET), SEM, EDX, TEM, XRD, XPS, SEM-elemental mapping, FT-IR, DSC and TGA analysis. XRD displayed that only one crystalline phase resulted for copper and chromium which is CuO and Cr2O3, respectively. The prepared MOF derivatives (MOF-D) displayed a regular octahedral morphology in case of Cr-MOF-D, which is changed to distorted octahedral structure after the addition of copper in the same frameworks, as confirmed by TEM and SEM techniques. Cu/Cr-MOF-D displayed exceptional electrochemical behavior for Cu0.50Cr0.50-MOF-D electrode with specific capacitance of 535.1 F. g−1 at 0.7 A. g−1 within potential window (ΔV) of 1.04 V. Also, it generated high power and energy density of 2600 W kg−1 and 36.7 W h kg−1, respectively. Cu0.50Cr0.50-MOF-D electrode has excellent cycling stability, that retained 90.3% of its initial specific capacitance even after 5000 cycles compared to the capacitance retention of Cu-MOF-D and Cr-MOF-D electrodes that reached 70.26% and 69.17%, respectively.
•A highly active and stable Cu/Cr-MOF derivatives have been successfully synthesized.•All the prepared composites exhibited distinct electrochemical performances as a supercapacitor.•The unique octahedral like structure of Cu/Cr-MOF-D produced exceptional electrochemical performance with a high specific capacitance of 535.1 F. g−1 at 0.7 A. g−1 for Cu0.50Cr0.50-MOF-D electrode.•Cu0.50Cr0.50-MOF-D electrode has excellent cycling stability, that retained 90.3% of its initial specific capacitance even after 5000 cycles.
Abstract
Background and Aims
Cognitive impairment (CI) is common in hemodialysis (HD) patients. St. Louis University Mental Status (SLUMS) examination is a traditional cognitive assessment method ...that relies on a pen-and-paper format. SLUMS test is known to be one of the most sensitive tests to detect early CI. Its questions cover many functions, including memory, attention, orientation, and overall executive function. This study aimed to compare its results with computerized neurocognitive battery assessment for attention and emotional orientation functions.
Method
One hundred twenty HD patients from three different in-hospital HD centers in Dakhlia governorate, Egypt, were subjected to the 10-minute Arabic-validated version of the SLUMS test for early CI (11 questions- 30 points). The patients were below 60 years old with no previous functional or structural neurological disease history. According to the stated test interpretation scores, fifty patients were defined to have no CI. Those patients underwent computerized neurocognitive battery assessment for attention and emotional cognition accuracy and response times; their results were analyzed compared to another fifty age, gender, and educational level-matched healthy controls.
Results
Of the 120 SLUMS-tested patients, 50 patients (41.6%) had no CI, 43 with mild to moderate CI (36%), and 27 with severe CI (22.4%). The classified 50 HD patients with no CI results within the computerized neurocognitive battery assessment revealed significantly reduced scores than matched healthy controls in the number of true positive answers of continuous number performance test for attention (90.46±26.61 vs. 109.15±14.56, respectively, p <0.001), emotion recognition correct answers (29.44±5.54 vs. 31.41±4.65, respectively, p 0.02), emotional recognition response times by m.seconds (3482.76±2907.62 vs. 2907.62±732.98, respectively, p <0.001), and correct answers of emotion differentiation test (19.82±5.88 vs.23.77±3.63, respectively, p <0.001). HD patients' age was the only clinical correlate to emotional recognition and differentiation accurateness (rho = 0.442, p <0.001 and rho = 0.3, p 0.02, respectively).
Conclusion
Early detection of CI in HD patients is an important target to improve the patient's quality of life and functionality. The complete dependence on the known simple screening assessment may miss a significant portion of the early-affected personnel.
Reversible logic has recently gained a remarkable interest due to its information lossless property, which minimizes power dissipation in the circuit. Furthermore, with their natural reversibility, ...quantum computations can profit from the advances in reversible logic synthesis, as the latter can be easily applied to map practical logic designs to quantum architectures. Although numerous algorithms have been proposed to synthesize reversible circuits with low cost, the increasing demands for scalable synthesis techniques represent a serious barrier in the synthesis process. Furthermore, the enhanced reliability of the synthesized circuits comes at the cost of redundancy in the quantum architecture of the gates composing that circuit, which increases the overall manufacturing cost for fault-tolerant circuits. Binary Decision Diagram (BDD) based synthesis has demonstrated a great evidence in reversible logic synthesis, due to its scalability in synthesizing complex circuits within a reasonable time. However, the cost of the synthesized circuit is roughly correlated to its corresponding BDD size. In this paper, we propose a fast reversible circuit synthesis methodology driven by a BDD-reordering optimization engine implemented by recent meta-heuristic optimization algorithms. Experimental results show that Genetic Algorithm (GA) based reordering supported with Alternating Crossover (AX) and swap mutation outperforms others as it is the least destructive for low-cost BDDs during the optimization recipe.
•We propose a fast BDD-based synthesis algorithm for reversible circuits driven by a BDD-reordering optimization engine under the guidance of BDD size as an evaluation metric in the proposed algorithm.•We integrate recent swarm optimization algorithms into the BDD-reordering optimizer.•We integrate Genetic Algorithm (GA) supported with recent effective crossover/mutation operators into the BDD-reordering optimization engine•We evaluate the different algorithms when integrated with our proposed optimization engine in terms of the size of the resultant BDD. This evaluation has been done on the public benchmarks.
In contemporary society, the proliferation of online hateful messages has emerged as a pressing concern, inflicting deleterious consequences on both societal fabric and individual well-being. The ...automatic detection of such malevolent content online using models designed to recognize it, holds promise in mitigating its harmful impact. However, the advent of "Hateful Memes" poses fresh challenges to the detection paradigm, particularly within the realm of deep learning models. These memes, constituting of a textual element associated with an image are individually innocuous but their combination causes a detrimental effect. Consequently, entities responsible for disseminating information via web browsers are compelled to institute mechanisms that regulate and automatically filter out such injurious content. Effectively identifying hateful memes demands algorithms and models endowed with robust vision and language fusion capabilities, capable of reasoning across diverse modalities. This research introduces a novel approach by leveraging the multimodal Contrastive Language-Image Pre-Training (CLIP) model, fine-tuned through the incorporation of prompt engineering. This innovative methodology achieves a commendable accuracy of 87.42%. Comprehensive metrics such as loss, AUROC, and f1 score are also meticulously computed, corroborating the efficacy of the proposed strategy. Our findings suggest that this approach presents an efficient means to regulate the dissemination of hate speech in the form of viral meme content across social networking platforms, thereby contributing to a safer online environment.
Proposals have been made by several researchers to conduct the sequestration of carbon dioxide (CO
2
) through calcium and magnesium-rich materials. From these materials, ground granulated blast ...furnace slag (GGBS) containing 5% magnesium and 45% calcium is seen to be a good candidate and is available to sequester CO
2
. This study intends to ascertain the ability to absorb CO
2
, sequester it, and increase treated kaolin strength with different content of GGBS under various carbonation periods with varying CO
2
pressure. The impacts of carbonated GGBS on the mechanical attributes of soil were examined by conducting the unconfined compressive strength (UCS) test, and microstructure analysis was conducted to identify the changes in the structure and Crestline phase. Stationary carbonation in a triaxial test with pure CO
2
was conducted to accelerate the carbonation process. The outcome indicates that the strength rises as the carbonation period rises. Likewise, UCS rises as the CO
2
pressure rises from 100 to 200 kPa. It could be concluded that augmentation of the strength is because of carbonated calcium and magnesium products which stuff the soil voids. Changes occur on the microstructure level due to carbonation as well.
Zeolitic imidazolate frameworks (ZIF), as a form of metal-organic frameworks (MOFs), are promising materials used as electrodes for energy storage devices. Their high electrical conductivity results ...from numerous conjugated systems and the collaboration between the ligand and cobalt significantly enhances their redox capacity. The bulk electrical conductivity and specific capacitance of ZIF materials can be enhanced by the incorporation of rGO and metal sulfide, respectively. Herein, ZIF-67@RGO nanocomposite was fabricated and then modified with 20.0 wt% Ni nanoparticles followed by co-electrodeposition of sulfur as a novel electrocatalyst. The prepared composites were analyzed using various techniques, including FT-IR, XRD, XPS, SEM, and EDX mapping. The electrochemical performance of the prepared composite electrodes was measured using different techniques such as cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charge-discharge (GCD). The S-Ni/ZIF-67@RGO electrode displayed excellent electrochemical behaviour which is evident in the high value of the specific capacitance of 1142.3 F g−1 at a current density of 1 A g−1. On the other hand, an asymmetric supercapacitor (ASC) was assembled by employing the unique composite material in conjunction with conductive carbon black. The power and energy densities of the ASC device were 774 W kg−1 and 88.2 Wh kg−1, respectively. The capacitance of S-Ni/ZIF-67-RGO is retained at 90.8% even after 3000 cycles, suggesting remarkable cycle stability. This study expands the application scope of ZIF-67 and introduces a new method for fabricating novel electrode materials.
Display omitted
•a simple and successful technique for developing a MOFs-based supercapacitor.•ZIF-67 particles incorporated with GO and NiS composite showed excellent specific capacitance of 1142.3 F. g−1•The prepared electrode shows excellent cycling performance of 90.8% after 3000 cycles.•ASC device exhibited energy and power densities 88.2 and 774 Wh kg−1 at a current density of 1.0 A g−1.
In the molecular era the management of cancer is no more a plan based on simple guidelines. Clinical findings, tumor characteristics, and molecular markers are integrated to identify different risk ...categories, based on which treatment is planned for each individual case. This paper aims at developing a fuzzy decision support system (DSS) to guide the doctors for the risk stratification of breast cancer, which is expected to have a great impact on treatment decision and to minimize individual variations in selecting the optimal treatment for a particular case. The developed system was based on clinical practice of Oncology Center Mansoura University (OCMU). This system has six input variables (Her2, hormone receptors, age, tumor grade, tumor size, and lymph node) and one output variable (risk status). The output variable is a value from 1 to 4; representing low risk status, intermediate risk status and high risk status. This system uses Mamdani inference method and simulation applied in MATLAB R2009b fuzzy logic toolbox.
PDF
