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Articles 796201 - 796230 of 5153697

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Single-Walled Carbon Nanotubes Inhibit Trpc4-Mediated Muscarinic Cation Current In Mouse Ileal Myocytes, Lina T. Al Kury, Dimitrios Papandreou, Vasyl V. Hurmach, Dariia O. Dryn, Mariia I. Melnyk, Maxim O. Platonov, Yuriy I. Prylutskyy, Uwe Ritter, Peter Scharff, Alexander V. Zholos Dec 2021

Single-Walled Carbon Nanotubes Inhibit Trpc4-Mediated Muscarinic Cation Current In Mouse Ileal Myocytes, Lina T. Al Kury, Dimitrios Papandreou, Vasyl V. Hurmach, Dariia O. Dryn, Mariia I. Melnyk, Maxim O. Platonov, Yuriy I. Prylutskyy, Uwe Ritter, Peter Scharff, Alexander V. Zholos

All Works

Single-walled carbon nanotubes (SWCNTs) are characterized by a combination of rather unique physical and chemical properties, which makes them interesting biocompatible nanostruc-tured materials for various applications, including in the biomedical field. SWCNTs are not inert carriers of drug molecules, as they may interact with various biological macromolecules, including ion channels. To investigate the mechanisms of the inhibitory effects of SWCNTs on the muscarinic receptor cation current (mICAT), induced by intracellular GTPγs (200 µM), in isolated mouse ileal myocytes, we have used the patch-clamp method in the whole-cell configuration. Here, we use molecular docking/molecular dynamics simulations and direct patch-clamp recordings of …

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Spartan Daily, December 1, 2021, San Jose State University, School Of Journalism And Mass Communications Dec 2021

Spartan Daily, December 1, 2021, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily, 2021

Volume 157, Issue 42

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Utility And Professional Attitudes Toward Assistive Technology In Uae Special Needs Centers, Mohammad Fteiha, Deena Elsori, Ashraf Khalil, Ghanem Albustami Dec 2021

Utility And Professional Attitudes Toward Assistive Technology In Uae Special Needs Centers, Mohammad Fteiha, Deena Elsori, Ashraf Khalil, Ghanem Albustami

All Works

The attitude of teachers about the use of technology is critical. As a result, when teachers have a constructive outlook toward a new type of assistive technology, they are more likely to make meaningful efforts to successfully integrate it into the teaching-learning process. The way assistive technology is used in the teaching and learning environment is heavily influenced by a special education teacher's attitude. Therefore, the study explored the availability of assistive technology and explored the attitudes of professional of special education towards the use of assistive technologies in special needs centers of United Arab Emirates (UAE). Questionnaires were distributed …

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Post-Processing And Characterization Of Additive Manufactured Carbon Fiber Reinforced Semi-Crystalline Polymers, Patricia Revolinsky Dec 2021

Post-Processing And Characterization Of Additive Manufactured Carbon Fiber Reinforced Semi-Crystalline Polymers, Patricia Revolinsky

Mechanical & Aerospace Engineering Theses & Dissertations

The aim of this work is to study the effect of post-processing on additive manufactured (AM) continuous carbon fiber reinforced plastics (CFRPs) performance. As-printed AM CFRPs do not perform as well as conventionally manufactured CFRPs with the same composition. Possible improvements to AM CFRP performance include annealing and applying uniaxial pressure with elevated temperature. Samples were subjected to pressure and temperature treatments and annealing at a constant temperature. Treated materials were subjected to three-point bending tests, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM) to characterize and assess sample performance. Results were assessed for flexural strength, …

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Discharged And Discarded: The Collateral Consequences Of A Less-Than-Honorable Military Discharge, Hugh Barrett Mcclean Dec 2021

Discharged And Discarded: The Collateral Consequences Of A Less-Than-Honorable Military Discharge, Hugh Barrett Mcclean

All Faculty Scholarship

Between 2011 and 2015, 57,141 soldiers, sailors, and airmen were separated from service with less-than-honorable (LTH) discharges for mi­nor misconduct related to mental health problems. These discharges dis­proportionately affected servicemembers of color. These veterans and others like them face daunting reintegration challenges when they return to civilian society, as federal agencies and state governments deny them the benefits that usually facilitate a veteran’s smooth transition to civilian society. This Essay adds to the scholarly discourse on military discharges by comparing these veterans’ plight to that of persons arrested or convicted of criminal offenses, who also suffer from collateral consequences related …

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The Ministerial Disengagement By Priests In The Post Modern Era And Its Impact, David Estrada Dec 2021

The Ministerial Disengagement By Priests In The Post Modern Era And Its Impact, David Estrada

LMU Theses and Dissertations

Since its inception, the Christian ministerial priesthood has occupied a place of esteem and gradually assigned privilege through its various stages of development and eventual establishment. Influenced over time by various major historical events, newer philosophical insights and perspectives, and the post-modern ethos embracing current society, the Catholic ministerial priesthood is today being drawn into more frequent ministerial disengagement.

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Short-Term Interaction Between Silent And Devastating Earthquakes In Mexico, V. M. Cruz-Atienza, J. Tago, C. Villafuerte, M. Wei, R. Garza-Girón, L. A. Dominguez, V. Kostoglodov, T. Nishimura, S. I. Franco, J. Real, M. A. Santoyo, Y. Ito, E. Kazachkina Dec 2021

Short-Term Interaction Between Silent And Devastating Earthquakes In Mexico, V. M. Cruz-Atienza, J. Tago, C. Villafuerte, M. Wei, R. Garza-Girón, L. A. Dominguez, V. Kostoglodov, T. Nishimura, S. I. Franco, J. Real, M. A. Santoyo, Y. Ito, E. Kazachkina

Graduate School of Oceanography Faculty Publications

Either the triggering of large earthquakes on a fault hosting aseismic slip or the triggering of slow slip events (SSE) by passing seismic waves involve seismological questions with important hazard implications. Just a few observations plausibly suggest that such interactions actually happen in nature. In this study we show that three recent devastating earthquakes in Mexico are likely related to SSEs, describing a cascade of events interacting with each other on a regional scale via quasi-static and/or dynamic perturbations across the states of Guerrero and Oaxaca. Such interaction seems to be conditioned by the transient memory of Earth materials subject …

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The George-Anne Inkwell Edition, Georgia Southern University Dec 2021

The George-Anne Inkwell Edition, Georgia Southern University

The Inkwell

No abstract provided.

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Exploring Mechanisms To Resolve Position And Intensity Disparities To Create A Combined Sidescan And Multibeam Sonar Backscatter Image, Clinton Marcus Dec 2021

Exploring Mechanisms To Resolve Position And Intensity Disparities To Create A Combined Sidescan And Multibeam Sonar Backscatter Image, Clinton Marcus

Center for Coastal and Ocean Mapping

The need for comprehensive seabed characterization has increased as fields such as offshore engineering and habitat management have expanded. Sidescan sonars and multibeam echosounders have generally been used as separate means to provide high-resolution imagery of the seabed, as there are a number of factors such as different grazing angles and high positioning uncertainty that prevent a cohesive product. By using the “true” position of a feature from a multibeam grid to reposition sidescan navigation data, the associated sidescan imagery positions are now recalculated with a reduced uncertainty. Once all sidescan navigation has been recalculated, the multibeam backscatter can be …

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Can Minimally Invasive Surgery Still Be Done For Cervical Cancer Patients Considering The Lacc Trial?, Sichen Liang, Zhiqing Liang, Samar Nahas, Jianming Song, Zeyi Cao, Adel Shervin, Bruno J. Van Herendael, Jennifer Song, Jianliu Wang Dec 2021

Can Minimally Invasive Surgery Still Be Done For Cervical Cancer Patients Considering The Lacc Trial?, Sichen Liang, Zhiqing Liang, Samar Nahas, Jianming Song, Zeyi Cao, Adel Shervin, Bruno J. Van Herendael, Jennifer Song, Jianliu Wang

Student Publications

No abstract provided.

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Eye-Transcriptome And Genome-Wide Sequencing For Scolecophidia: Implications For Inferring The Visual System Of The Ancestral Snake, David J. Gower, James F. Fleming, Davide Pisani, Freek J. Vonk, Harald M.I. Kerkkamp, Leo Peichl, Sonja Meimann, Nicholas R. Casewell, Christiaan V. Henkel, Michael K. Richardson, Kate L. Sanders, Bruno F. Simões Dec 2021

Eye-Transcriptome And Genome-Wide Sequencing For Scolecophidia: Implications For Inferring The Visual System Of The Ancestral Snake, David J. Gower, James F. Fleming, Davide Pisani, Freek J. Vonk, Harald M.I. Kerkkamp, Leo Peichl, Sonja Meimann, Nicholas R. Casewell, Christiaan V. Henkel, Michael K. Richardson, Kate L. Sanders, Bruno F. Simões

More Faculty of Science and Engineering Research

Molecular genetic data have recently been incorporated in attempts to reconstruct the ecology of the ancestral snake, though this has been limited by a paucity of data for one of the two main extant snake taxa, the highly fossorial Scolecophidia. Here we present and analyze vision genes from the first eye-transcriptomic and genome-wide data for Scolecophidia, for Anilios bicolor, and A. bituberculatus, respectively. We also present immunohistochemistry data for retinal anatomy and visual opsin-gene expression in Anilios. Analyzed in the context of 19 lepidosaurian genomes and 12 eye transcriptomes, the new genome-wide and transcriptomic data provide evidence for a much …

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The Doctrine Of Creation: A Constructive Kuyperian Approach (Book Review), David Moser Dec 2021

The Doctrine Of Creation: A Constructive Kuyperian Approach (Book Review), David Moser

Faculty Work Comprehensive List

No abstract provided.

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The Evaluation Of Natural Ventilation Inside Residential Building Spaces In New Assiut City-(At Under Heated Period) - Egypt., Ezzat Morghany, Abdel-Monteleb Aly, Riyad El Shemeiri Dec 2021

The Evaluation Of Natural Ventilation Inside Residential Building Spaces In New Assiut City-(At Under Heated Period) - Egypt., Ezzat Morghany, Abdel-Monteleb Aly, Riyad El Shemeiri

Mansoura Engineering Journal

The movement of air has a great effect on architectural formation whether on the building level in terms of the shape of voids and the ventilating elements or on the level of the general planning of the whole area. controlling roads and passageways. directing housing units, and proper distribution of buildings becomes an essential factor lo provide the required natural ventilation for all buildings, Because of the absence of adequate field studies of housing gatherings in desert arias, in the Under Heated Period, the present research focuses on studying natural ventilation of Housing units in the Under Healed Period through …

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A Neural Network Based Hybrid Technique For Data Compression Of Stereopairs., Ahmad Tolba, Abdul Ragab Dec 2021

A Neural Network Based Hybrid Technique For Data Compression Of Stereopairs., Ahmad Tolba, Abdul Ragab

Mansoura Engineering Journal

This paper presents a new hybrid technique for efficient compression of stereopairs . The proposed technique encompasses three processing stages: a phase difference disparity interpreter, a neural network based image compressor / decompressor, and a stereopair reconstructor. The main advantage of the proposed technique lies in a threefold data compression. The first data compression stage is realized by using the Fast Fourier Transform (FFT) for computation of the disparity. Data compression is achieved by sending both the disparity and the compressed right image. The second data compression stage is achieved by clamping the significant part of the FFT coefficients of …

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Speech Coding In The Sequency Domain., Fayez Soliman Dec 2021

Speech Coding In The Sequency Domain., Fayez Soliman

Mansoura Engineering Journal

Digital transmission of speech presents the opportunity to provide a more secure and bandwidth efficient service with a consistent quality. The feasibility and cost efficiency of future systems depends largely on the availability of low bit rate vocoders. Orthogonal transformations offer a means for reduction of the bit rate necessary for the transmission of speech signals. The ability to reduce the bit rate resides in the fact that the variance of the orthogonal function coefficients is far less than the variance of the speech itself. Discrete Walsh and Haar transforms are examined for their capacity to reduce the bit rate …

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Trajectory Analysis For An Industrial Robotic System., Kamel Soliman Dec 2021

Trajectory Analysis For An Industrial Robotic System., Kamel Soliman

Mansoura Engineering Journal

The present paper introduces a general scope about the growing role of industrial robot system in modern industries. A dynamic model for a two links robot is introduced mechanics. The dynamic behavior of such robotics system is oscilacting on the system. A computer program based on Runge-Kutta-R-K) fourth order method with variable step, is designed to study the dynamic behavior of such robotic system. A suggested technique for choosing the most suitable control input (controlling torque) for such nonlinear system is introduced. The steps of the suggested technigue are classified as follows:- For each link different stable trajectory are assumed …

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Mathematical Modelling Of Transient Processes In The Capacitive Take-Off Power Network., Ibrahim Mansy, A. Aly, Saad Eskander Dec 2021

Mathematical Modelling Of Transient Processes In The Capacitive Take-Off Power Network., Ibrahim Mansy, A. Aly, Saad Eskander

Mansoura Engineering Journal

This paper presents a mathematical modelling of the transient processes in a capacitive take-off power network. This model is based on the calculation of magnetic flux of a single-phase, two-winding transformer. This model is represented by non-linear equations. The short circuit occurs along the steel core, and the leakage flux coupling the separated coils closes out the side of core. The mathematical model is developed to investigate the conditions of transient process analysis in a capacitive take-off power network. The reduction of overvoltage during short circuit period is also studied in this paper. Also, this paper suggests the solution manner …

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Experimental Investigation Of Hydrodynamic Multipads Floating Journal Bearing., Abdallah El-Toukhy Dec 2021

Experimental Investigation Of Hydrodynamic Multipads Floating Journal Bearing., Abdallah El-Toukhy

Mansoura Engineering Journal

A run of experimental tests have been undertaken for investigated various types of ring. Where the ring is splitt up into two pads, also, a ring is split up into four pads respectively. The effect of using different pads is then evaluated and the influence of different factors on performance is discussed under steady applied load conditions. Performance factors are described in terms of, supply pressure, friction torque oil flow rate, inlet-outlet temperature and ring speed. Results are reached on the relative credits of each control variable case. A reduction in friction torque ranges between 25% and 30% is obtained …

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Investigation Of Heat Transfer And Fluidization Dynamics Around Horizontal Bundle Tube In Fluidized Bed., Mohamed Sheta Dec 2021

Investigation Of Heat Transfer And Fluidization Dynamics Around Horizontal Bundle Tube In Fluidized Bed., Mohamed Sheta

Mansoura Engineering Journal

Experiments were performed on a fluidized bed model with a cross section of 80*85mm and a height of 1.2m. Sand particles were used as a bed material. Measurements of specific air consumption, pressure drop, mean wall temperature, bed temperature distributions and particle sizes have been carried out. Some primary experiments were carried out at ambient temperature to study fluidization characteristics of sand particles. The measurements were taken at near room temperature and ambient pressure using three sand particle sizes dp < /sub> = 2.32, 1.60 1.10mm). Experimental results for heat transfer coefficient and aerodynamic characteristics between immersed bundles of horizontal smooth tubes …

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Adaptive Enhacement Of Ambulatory Electrocardiograms., Fatma El-Zahraa Abou-Chadi Dec 2021

Adaptive Enhacement Of Ambulatory Electrocardiograms., Fatma El-Zahraa Abou-Chadi

Mansoura Engineering Journal

Quality improvement of ambulatory electrocardiographic (ECG) signals is an important subject and crucial in computer aided diagnosis and monitoring. However, the poor quality of the signals necessitates signal enhancements. Hence, in this paper, three adaptive filter structures are presented to eliminate the diverse forms of noise. The performance of each technique 18 thoroughly investigated by simulated signals as well as signals obtained from human subjects. A two stage filter consisting of an adaptive noise cancellar and adaptive recurrent filter has been found to reduce efficiently the various types of noise while the characteristics of the relevant ECG signal is little …

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A Generalized Formulation And Analysis Of Shunt Faults In Multi-Phase Transmission Systems., Ibrahim Mansy Dec 2021

A Generalized Formulation And Analysis Of Shunt Faults In Multi-Phase Transmission Systems., Ibrahim Mansy

Mansoura Engineering Journal

This paper is devoted to the extension of the existing three phase technique for a generalized treatment of shunt faults in multi-phase systems. The expressions derived in this paper for fault currents and voltages are applicable to any phase order, fault type and combination of faults and can account for the fault impedance/admittance. Several illustrative calculations are presented to demonstrate the validity of expressions derived and to derive important informations regarding performance of multi-phase transmission systems,

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Optimum Shunt Capacitor For Power Factor Compensation In The Presence Of Harmonics., Mohamed El-Saied, Gabr Abd El-Sallam, Abd El-Rahman Amin Dec 2021

Optimum Shunt Capacitor For Power Factor Compensation In The Presence Of Harmonics., Mohamed El-Saied, Gabr Abd El-Sallam, Abd El-Rahman Amin

Mansoura Engineering Journal

Power consumers require both reliable service and a acceptable voltage profile. The presence of nonlinear loads in power system generate harmonics which affect, in particular, the shape and magnitude of the supplied voltage, Classical design of capacitors for power factor compensation has been based on the undamental frequency analysis. However, the presence of harmonics and distortion, the compensated power factor is the short circuit generally worse. Additionally, according to capacity at the load bus, the calculated capacitor value could result in harmonic resonant conditions. A direct search technique known as Fibonacci Method (II) has been employed to determine the optimum …

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The Behaviour Of Geotextiles Under Arid Weather Conditions Kuwait As A Case Of Study., Mohamed Ali, H. El-Mudhaf Dec 2021

The Behaviour Of Geotextiles Under Arid Weather Conditions Kuwait As A Case Of Study., Mohamed Ali, H. El-Mudhaf

Mansoura Engineering Journal

This paper investigates the behaviour of geotextiles at exposure, storage and burial in soil in a hot dry climate. Kuwait was chosen as it experiences a wide range of annual temperature throughout the year, with air temperature rising to 55°C in summer and dropping to 0°C in winter. It also has an extremely high UV radiation level with long hours of uninterrupted sunshine on most of the days of the years. Two geotextiles presently used for separation and reinforcement applications, were fully exposed, stored out of sunlight and buried in soil at the depth of 0.5 m and 1.5 m. …

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Machinability Parameters In Finish Face Milling Of Low Alloy Cr-Ni Steel With Thr K30 Carbide Tool Part Ii: Surface Finish, Machined Surface. Texture, Minor Cutting Edge And Nature Of Chips., Fayez Abo-Gharbia Dec 2021

Machinability Parameters In Finish Face Milling Of Low Alloy Cr-Ni Steel With Thr K30 Carbide Tool Part Ii: Surface Finish, Machined Surface. Texture, Minor Cutting Edge And Nature Of Chips., Fayez Abo-Gharbia

Mansoura Engineering Journal

The second contribution presents the results of finish face milling in which the performance of THR K30 reported in terms of surface roughness and machined surface alterations when a low alloy steel in its hardened conditions was milled. The assessment of surface finish and the mechanisms involved in particular front and back cutting were defined. Details are given corresponding to the geometry of tool, elastic deformation and feed marks transferred to surface during front curling. Also, in back cutting, the surface refining by burnishing process on the trailing end culling edge was comprehensively explained. The effect of minor flank wear …

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An Investigation For Improving The Quality Of Thermo-Plastic Extrusion Products By Using New Statistical Method., Farouk Rashed Dec 2021

An Investigation For Improving The Quality Of Thermo-Plastic Extrusion Products By Using New Statistical Method., Farouk Rashed

Mansoura Engineering Journal

The traditional quality control procedures are adopted to reduce the variation in the process during the manufacturing stage. Modern quality control techniques are utilized as quality engineering in the design stage. In this paper a statistical quality control technique based on Taguchi method has been developed. The objective is to determine the optimum combination of the process characteristics that reduce performance variation while keeping the process average close to its target value. As well, various aspects of off line quality control procedures are discussed in this paper. Off-line quality control refers to quality and cost control activities at the product …

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A Contribution To The Study Of Flow Field And Heat Transfer On A Rearward - Facing Step., Awad El-Hadik Dec 2021

A Contribution To The Study Of Flow Field And Heat Transfer On A Rearward - Facing Step., Awad El-Hadik

Mansoura Engineering Journal

The flow and convective heat transfer characteristics over a backward-facing step were investigated numerically and experimentally. Two different step-heights were studied for different Reynolds numbers. The point of reattachment of the flow behind the step proved to be the point of maximum heat transfer coefficient. The size of the separated region as well as the Nus sell number depended greatly on the Reynolds number. Downstream of reattachment, the heat transfer coefficient declined rapidly and followed gradually the contour of the turbulent hound ary layer. The results of the investigation were compared to others from the literature with sat-isfaction.

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Morphology Of Discontinuous Precipitates In Nitrogenized 316 L Steel., Fawzy El-Sabbahy Dec 2021

Morphology Of Discontinuous Precipitates In Nitrogenized 316 L Steel., Fawzy El-Sabbahy

Mansoura Engineering Journal

316 L steel specimens, wt %, (18 Cr - 8 Ni - 2 Mo) containing nitrogen in the range of 0.02 - 0.6 wt% in powder form, were solution treated at 1100°C for 30 min. followed by water quenching. Solution treated materials were subjected to aging at temperatures of 700 and 800°C for several intervals of time. X-ray diffraction and Scanning electron microscopy were used to study the morphology of the precipitates at different aging conditions. The hardness of these materials was determined. The morphology and size of the precipitates produced during aging were observed to depend on the aging …

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Database, Registries And Monitoring Of Congenital And Genetic Malformation., Mohamed Ahmed, Nadia Hegazi, Samia El-Temtamy, Ehab Aboul-Ezz, Najwa Abd El-Megid, Ali El-Hazmi Dec 2021

Database, Registries And Monitoring Of Congenital And Genetic Malformation., Mohamed Ahmed, Nadia Hegazi, Samia El-Temtamy, Ehab Aboul-Ezz, Najwa Abd El-Megid, Ali El-Hazmi

Mansoura Engineering Journal

With technical and industrial advances which have become a significant part of today's economic growth, remarkable advances have been made in the development and use of technical capabilities that enhance the endeavor of the medical profession. The developed countries have adopted the essential ''corner stone'' of database and registries development for monitoring birth defects. The use of National and Regional Registries has become ''a must'' to have a database that is necessary for rehabilitation, control and prevention programs. In Saudi Arabia, towards this objective, a study to establish a database and national registry to monitor birth defects and determine frequency, …

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A Framework For Improving Software Reusability Within Quality Constraints., Shawkat Guirguis Dec 2021

A Framework For Improving Software Reusability Within Quality Constraints., Shawkat Guirguis

Mansoura Engineering Journal

In this paper seven of the most important issues in software systems development have been investigated. These issues address two aspects, namely: software development productivity and the final overall quality. For the productivity aspect, an approach has been devised relying on using scripts. Built as a result of an analyst-user collaboration, these scripts, upon interpretation, transform given user requirements into code. This prototyping approach, in addition to being rapid, involves the user in order to ensure his overall satisfaction with the final product. For the quality aspect, a two-layered repository of thoroughly tested and verified reusable software components has been …

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Quantitative Inference Of Decision Making Strategies Under Inherent Knowledge Uncertainties., Shawkat Guirguis, Mohamed El-Raey, Essam Aly Dec 2021

Quantitative Inference Of Decision Making Strategies Under Inherent Knowledge Uncertainties., Shawkat Guirguis, Mohamed El-Raey, Essam Aly

Mansoura Engineering Journal

In this paper a model and its associated software system, that is being used for designation of optimal strategies are presented. Obtained optimal strategies are employed by decision markers to safety react to various conditions. The fact that decision markers are expected to take actions according to given observations is discussed along with emphasizing the relationships between these observations and the underlying states of nature that caused them. This is a many-to-many relation and care must be taken to avoid unreliable of the real cause or causes a observed situation. The inherent uncertainties in the assessment process have been identified …

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