26 research outputs found

    Relationship Between Stress and Young Adults\u27 Complementary and Alternative Medicine Use

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    Complementary and alternative medicine (CAM) refers to a group of diverse medical and healthcare systems, practices, and products not treated as conventional medicine. The body of literature on stress and stress management among young adults has not addressed the use of CAM modalities for stress management among this population. The theoretical foundation of the study was based upon the transactional model of stress and coping, which describes stress as an interaction between an external stressor and the resources available to eliminate the stressor. The purpose of this quantitative study was to examine whether variables such as exposure to CAM, stress level, dispositional coping style, sociodemographic variables, and social support influence young adults\u27 use of CAM modalities for stress management. This study sought to determine to what extent dispositional coping, exposure to and knowledge of CAM, and sociodemographic variables affect young adults\u27 use of CAM modalities for stress management. This study also sought to answer whether there is a difference in the perceived stress of participants who use CAM modalities and those who do not. A quantitative cross-sectional correlational study was employed, using a survey methodology, to identify whether the factors identified in the study influence young adults\u27 use of CAM modalities. Results showed that knowledge of CAM and dispositional coping style significantly influence the use of CAM modalities; sociodemographic variables do not influence the use of these modalities. Furthermore, the use of CAM modalities was found to have a significant relationship to stress level. The findings of the current study suggest the CAM techniques can be adapted and introduced into college settings so that students can better manage their stress level

    Reconfigurable Intelligent Surface (RIS) Design for 5G N260 Frequency Band

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    In This Paper, a New Low Profile Reconfigurable Intelligent Surface Design with High Resolution Steering Reflector and Wide Frequency Band Width is Proposed at N260 Frequency Band, Used for 5G New Radio Applications. the Dynamic Reflection Phase and Tunability is Realized by Integrating of Varactor Diode with Each Unit Cell. This Study Presents Design Procedures, Reflection Simulation Verifications, and the Effects of Important Parameters on the Performance of the Proposed Novel Resonant Unit Cell. the Proposed Unit Cell Offers a Dynamic Reflection Phase Range of More Than 270° at a Wide Frequency Bandwidth. Simulation Results of Beam Steering Capability in Horizontal Plane at 38 GHz is Presented to Verify the Design Performance of the RIS

    High-Speed Differential Via Optimization using a High-Accuracy and High-Bandwidth Via Model

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    A Physics-Based Equivalent Model of the High-Speed Differential Via Pair with High Accuracy and High Bandwidth is Proposed for the First Time. the Proposed Physics-Based Equivalent Circuit Model of the Differential Via Pair Includes the Effect of Adjacent Ground (GND) Vias. the Proposed Model is Verified using 3D Full-Wave Numerical Simulation Results. in Addition, the Change in Electrical Performance Due to Change in Anti-Pad Radius, the Via Pitch and the GND-Via-To-Differential-Via Distance is Analyzed. based on the Analysis, Electrical Performance of Differential Via Pair Can Be Accurately and Rapidly Optimized with Respect to Design Parameters, such as the Via Pitch, the Anti-Pad Radius and the GND-Via-To-Differential-Via Distance using the Proposed Model, to Provide Pre-Layout Design Guide for High-Speed Channel Designers. by using the Proposed High-Accuracy and High-Bandwidth Physics-Based Via Model, the Via Optimization Time Can Be Drastically Reduced with High Accuracy

    Mode-Decomposition-Based Equivalent Via (MEV) Model and MEV Model Application Range Analysis

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    The Mode-Decomposition-Based Equivalent Via (MEV) Model is Proposed in This Paper, which is a Physics-Based Equivalent Model for the High-Speed Channel Modeling. the Application Ranges of the MEV Model Are Analyzed by Varying Anti-Pad Radius, Via Radius, and Distance between the Parallel Plates for a Single Via with Multiple Layers. based on the S-Parameter Comparison with Full-Wave Simulations, the MEV Model is Useful for the Insertion Loss Calculation Up to 100 GHz. Meanwhile, the Return Loss from the MEV Model Shows a High Level of Correlation with Full-Wave Simulation Results Up to 70GHz, Even When the Anti-Pad Radius is Larger Than the Commonly Used Size. the Parallel-Plate Height Has a Negligible Impact on the Accuracy of the MEV Model. This Paper Demonstrates the Large Application Range of the MEV Model and Verifies that MEV Model is Suitable for Practical High-Speed Via Analysis

    Chiropractic Identity, Role and Future: A Survey of North American Chiropractic Students

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    Background: The literature pertaining to chiropractic students’ opinions with respect to the desired future status of the chiropractic physician is limited and is an appropriate topic worthy of study. A previous pilot study was performed at a single chiropractic college. This current study is an expansion of this pilot project to collect data from chiropractic students enrolled in colleges throughout North America. Objective: The purpose of this study is to investigate North American chiropractic students’ opinions concerning professional identity, role and future. Methods: A 23-item cross-sectional electronic questionnaire was developed. A total of 7,455 chiropractic students from 12 North American English-speaking chiropractic colleges were invited to complete the survey. Survey items encompassed demographics, evidence-based practice, chiropractic identity and setting, and scope of practice. Data were collected and descriptive statistical analysis was performed. Results: A total of 1,247 (16.7% response rate) questionnaires were electronically submitted. Most respondents agreed (34.8%) or strongly agreed (52.2%) that it is important for chiropractors to be educated in evidence-based practice. A majority agreed (35.6%) or strongly agreed (25.8%) the emphasis of chiropractic intervention is to eliminate vertebral subluxations/vertebral subluxation complexes. A large number of respondents (55.2%) were not in favor of expanding the scope of the chiropractic profession to include prescribing medications with appropriate advanced training. Most respondents estimated that chiropractors should be considered mainstream health care practitioners (69.1%). Several respondents (46.8%) think that chiropractic research should focus on the physiological mechanisms of chiropractic adjustments. Conclusion: The chiropractic students in this study showed a preference for participating in mainstream health care, report an exposure to evidence-based practice, and desire to hold to traditional chiropractic theories and practices. The majority of students would like to see an emphasis on correction of vertebral subluxation, while a larger percent found it is important to learn about evidence-based practice. These two key points may seem contradictory, suggesting cognitive dissonance. Or perhaps some students want to hold on to traditional theory (e.g., subluxation-centered practice) while recognizing the need for further research to fully explore these theories. Further research on this topic is needed.https://doi.org/10.1186/s12998-014-0048-

    Harnessing TILLING and TILLING by Sequencing (TbyS) - A reverse genetics approach to identify novel mutant lines in Camelina sativa L. with improved traits

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    Camelina sativa L. is a neglected biofuel crop with potential for tremendous application in various industries due to its varied oil traits, which increases the scope of crop improvement. Camelina is an allo-hexaploid with a chromosome number of 40 (2n) and a genome size of 642MB. We evaluated TILLING technique to carry out Camelina crop improvement by focusing on genes controlling overall oil quality and other non-nutritive traits. TILLING by enzyme was done in FAD2 or fatty acid desaturase 2, which controls the conversion of oleic acids (C18:1) to linoleic acid (C18:2); and FAE1 or fatty acid elongase 1, which sequentially adds two carbon units to 18-carbon fatty acids thereby forming very long chain fatty acids (VLCFAs). A total number of 22 mutants were obtained, 11 each in FAD2 and FAE1 gene. TILLING in FAD2 and FAE1 genes showed a mutation frequency rate of 1 per 520 kb and 1 per 682 kb respectively; and an overall mutation frequency of 601 kb. A novel mutant with zero erucic acid was developed by this approach. TILLING by sequencing (TbyS) was also done for genes affecting the lipid biosynthesis pathway (FAD2 and FAE1) and the function of non-nutritive traits MIPS1 (myo-inositol-1- phosphate synthase), and TGG1 (thiogucoside glucohydrolase 1), we obtained 183 mutants from the 2496 M2 mutant population. Mutation frequency in each gene were as follows, for FAD2 – 1 per 40 kb, FAE1 – 1 per 40, MIPS1 – 1 per 106 kb, and TGG1 1 per 145 kb giving an overall mutation frequency of 1 per 55 kb. Phenotyping morphologically showed an overall percentage of 9.6% various phenotypes after screening 5049 M2 families, in which a total of 1.1% of M2 families showed albino plants. The mutants generated from the present study have a potential for food and non-food applications.2020-02-0

    Clinical Roundup: Selected Treatment Options for Stroke

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    Monte Carlo Particle Simulation of Avalanche Breakdown in a Reverse Biased Diode with Full Band Structure

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    To model the avalanche breakdown of a voltage regulator diode under reverse bias, a computationally rigorous device physics model using the Monte Carlo method to solve charge carrier Boltzmann transport equations (BTEs) is proposed. The transport of energetic charge carriers is calculated by using the full energy band instead of the non-parabolic band structure. The position-dependent doping profile found in real diodes is modeled accurately and time-efficiently. A two-step method is introduced to accelerate the simulation of avalanche breakdown. With the proposed model, the expected IV characteristics of a voltage regulator diode under reverse bias are simulated. The transport of charge carriers and avalanche breakdown are modeled at the microscopic level, and the simulation results are verified through comparison with the IV characteristics from the datasheet. This model can be used to analyze device susceptibility to electrical stress, providing a graphical visualization for failure mechanisms

    Simplified Equivalent Golden Finger Port Setup for Fast and Accurate High-Speed Channel Simulation

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    A Simplified Equivalent Golden Finger Port Setup is Proposed for Efficient, Accurate 3D Full-Wave Simulation for High-Speed Channels. the Bent Connector Pins, Which Mate with the Golden Finger, Are Simplified as Equivalent Cylindrical Pins to Meet the Wave Port Setting Requirements for 3D Full-Wave Simulation. the Effects of the Equivalent Cylindrical Pin Location and Diameter Are Analyzed through 3D Full-Wave Simulation. a Closed-Form Expression is Newly Proposed to Correlate the Location and Diameter of the Equivalent Cylindrical Pin with Respect to the Widely Used Bent Connector Pin. on the Basis of the Closed-Form Expression, the Bent Connector Pin Can Be Accurately Replaced by the Simplified Equivalent Cylindrical Pin Structure in 3D Full-Wave Simulation. Practical Examples using Commercial High-Speed Connector Pin Models with Gold Fingers Verify that the Proposed Modeling Method is Accurate and Efficient Up to 40 GHz
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