Al-Itqân Bimakhâriji Al-Hurûf Al-‘Arabiyah Wa ‘Alâqatuhu Bi Mahârah Al-Qirâ’ah Ladâ Talâmidzi Al-Madrasah Al-‘Āliyah Al-Muhammadiyah Lakitan

The main problem in this research is how the relationship between mastery of Arabic alphabet makhorij with reading skills of eleventh grade students in MA Muhammadiyah Lakitan Pesisir Selatan. This study aims to determine the results of students' Arabic makhorijl mastery, the results of students' reading skills, and the relationship between Arabic makhorij mastery and eleventh grade students' reading skills. This study is quantitative with the type of correlation. The results of this study are the first grades of the results makhorij abilities of eleventh grade students', the second grades of the results reading skills of eleventh grade students' and the third is the results of the relationship between makhorij abilities and reading skills the eleventh grade students' in  MA Muhammadiyah Lakita

Optically controlling the competition between spin flips and intersite spin transfer in a Heusler half-metal on sub-100 fs timescales

The direct manipulation of spins via light may provide a path toward ultrafast energy-efficient devices. However, distinguishing the microscopic processes that can occur during ultrafast laser excitation in magnetic alloys is challenging. Here, we study the Heusler compound Co2MnGa, a material that exhibits very strong light-induced spin transfers across the entire M-edge. By combining the element-specificity of extreme ultraviolet high harmonic probes with time-dependent density functional theory, we disentangle the competition between three ultrafast light-induced processes that occur in Co2MnGa: same-site Co-Co spin transfer, intersite Co-Mn spin transfer, and ultrafast spin-flips mediated by spin-orbit coupling. By measuring the dynamic magnetic asymmetry across the entire M-edges of the two magnetic sublattices involved, we uncover the relative dominance of these processes at different probe energy regions and times during the laser pulse. Our combined approach enables a comprehensive microscopic interpretation of laser-induced magnetization dynamics on timescales shorter than 100 fs.Comment: 31 pages, 12 figure

Numerical Study on the Influence of Length-Diameter Ratio on the Performance of Dynamic Pressure Oil-Air Separator

In order to study the separation characteristics of the aeroengine dynamic pressure oil-air separator, this paper uses the coupling method of PBM and CFD two-fluid model to study the influencing factors such as cylinder diameter, cylinder length, and other factors on the separator performance. The flow field structure, velocity, gas volume distribution, separation efficiency, and gas and liquid holdup rate in the separator under different operating conditions are analyzed. Combined with the analysis results of the cylinder diameter and the cylinder length, the influence law of length-diameter ratio on separation efficiency is summarized. The optimum length-to-diameter ratio that maximizes the separation performance of the separator is obtained in this research, which provides a reference for the design and improvement of the separator. The results show that, as the diameter of the cylinder increases, the separation efficiency increases first and then decreases. When dsep = 16 mm and dsep = 18 mm, the separator reaches its maximum efficiency, which is about 93%. With the increase of the cylinder length, the separation efficiency first increases and reaches the maximum when l2 = 90 mm and then decreases slowly. When the separator cylinder is either too long or too short, it will cause the separation performance to decrease. There is an optimal aspect ratio. There is an optimal aspect ratio, and the separation performance of the separator is the best when the aspect ratio is between 5 and 6

Therapeutic Potential of Umbilical Cord Mesenchymal Stromal Cells Transplantation for Cerebral Palsy: A Case Report

Cerebral palsy is the most common motor disability in childhood. In current paper, we first report our clinical data regarding administration of umbilical cord mesenchymal stem cells (MSCs) transplantation in treatment of cerebral palsy. A 5-year-old girl with cerebral palsy was treated with multiple times of intravenous and intrathecal administration of MSCs derived from her young sister and was followed up for 28 months. The gross motor dysfunction was improved. Other benefits included enhanced immunity, increased physical strength, and adjusted speech and comprehension. Temporary low-grade fever was the only side effect during the treatment. MSCs may be a safe and effective therapy to improve symptoms in children with cerebral palsy

Optically controlling the competition between spin flips and intersite spin transfer in a Heusler half-metal on sub-100-fs time scales

The direct manipulation of spins via light may provide a path toward ultrafast energy-efficient devices. However, distinguishing the microscopic processes that can occur during ultrafast laser excitation in magnetic alloys is challenging. Here, we study the Heusler compound Co2MnGa, a material that exhibits very strong light-induced spin transfers across the entire M-edge. By combining the element specificity of extreme ultraviolet high-harmonic probes with time-dependent density functional theory, we disentangle the competition between three ultrafast light-induced processes that occur in Co2MnGa: same-site Co-Co spin transfer, intersite Co-Mn spin transfer, and ultrafast spin flips mediated by spin-orbit coupling. By measuring the dynamic magnetic asymmetry across the entire M-edges of the two magnetic sublattices involved, we uncover the relative dominance of these processes at different probe energy regions and times during the laser pulse. Our combined approach enables a comprehensive microscopic interpretation of laser-induced magnetization dynamics on time scales shorter than 100 femtoseconds

GeoCENS: A Geospatial Cyberinfrastructure for the World-Wide Sensor Web

The world-wide sensor web has become a very useful technique for monitoring the physical world at spatial and temporal scales that were previously impossible. Yet we believe that the full potential of sensor web has thus far not been revealed. In order to harvest the world-wide sensor web’s full potential, a geospatial cyberinfrastructure is needed to store, process, and deliver large amount of sensor data collected worldwide. In this paper, we first define the issue of the sensor web long tail followed by our view of the world-wide sensor web architecture. Then, we introduce the Geospatial Cyberinfrastructure for Environmental Sensing (GeoCENS) architecture and explain each of its components. Finally, with demonstration of three real-world powered-by-GeoCENS sensor web applications, we believe that the GeoCENS architecture can successfully address the sensor web long tail issue and consequently realize the world-wide sensor web vision

The Significance of Close Margins on Outcome of Patients with Adenoid Cystic Carcinoma of the Skull Base: An International Collaborative Study

Background: The mainstay of treatment in adenoid cystic carcinoma (ACC) of the head and neck is surgical resection with negative margins. Surgical resection of skull base ACC might be limited by proximity to vital structures. The clinical significance of close margins (not involved but less than 5 mm) in ACC remains undefined. This study aims to characterize the impact of close margin on the outcome of patients with ACC of the skull base. Methods: Univariate and multivariate models were used to evaluate the clinical and pathologic data in an international collaborative study. Results: A total of 507 patients with ACC of the head and neck were analyzed. Of those, 108 (22%) had ACC of the paranasal sinuses and skull base. Negative margins were achieved in 38 (35%) patients with paranasal sinuses ACC compared with 49% and 57% in patients with major salivary glands and oral cavity ACC, respectively (p = .001). Close margins, were found in 16 patients (15%), with skull base ACC. Univariate analysis revealed that margin status was significant for 5 years overall survival (OS, p = .009) disease specific survival (DSS, p = .003) and disease free survival (DFS, p = .015) for patients with ACC of the skull base. Multivariate analysis in patients with ACC of the skull base, revealed that close margin status was a significant predictors for 5 years OS (HR-2.11, 95% CI, 1.3–4.2, p = .01), DSS (HR-2.1, 95% CI, 1.2–3. 1, p = .03) and DFS (HR-3.1, 95%CI, 1.3–8.2, p = .03). Conclusions: In patients with skull base ACC, close margins should be considered as an adverse pathological feature similar to positive margins