What is the full form of SEM in microscope?
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7 Citations | This joint effort between educators and a microscope manufacturer is the first attempt at the development of a truly education‐oriented SEM suitable for use in the classroom. |
14 Citations | Since the specimens were not likely to be frozen during quick examination and photography, this method might well be called “low-temperature SEM” (LT-SEM) as distinguished from “cryo-SEM”. |
| The method is easily adaptable to many types of tissue and suitable for any laboratory with standard SEM preparation equipment and a variable-pressure-SEM or tabletop SEM. | |
01 Jan 1981 3 Citations | The present accomplishments of the SEM technique are not restricted by the resolution power of the microscope but rather by the unsolved problems concerning the preparation of specimens. |
| It is demonstrated that the resulting simulation package is capable of quantitatively predicting experimental SEM images and is an important tool in building a deeper understanding of SEM imaging. | |
9 Citations | The information obtained is useful for designing the SEM detector for specific applications. |
Related Questions
How to present sem in research?4 answersStructural equation modeling (SEM) can be presented in research by following several steps. First, researchers should provide an overview of SEM and its applications in the specific field of study. They should explain the benefits and advantages of using SEM, such as its ability to analyze complex patterns of relationships among variables and validate theoretical models. Researchers should also describe the different types of SEM techniques, such as covariance-based SEM and variance-based SEM, and when each should be used. Additionally, it is important to discuss best practices for conducting SEM analysis, including the steps involved in building research models, testing measurement errors, and conducting confirmatory factor analysis. Finally, researchers should provide examples of SEM applications in the specific field of study to demonstrate the scope and diversity of SEM techniques.
What are the advantages of SEM?4 answersThe advantages of scanning electron microscopy (SEM) include its ability to provide imaging at various magnifications, ranging from 1 µm to 1 nm, depending on the hardware used. SEM allows for the scanning of surfaces and the collection of information on topographical contrast, material contrast, and compositional information through the emission of different signals. The simultaneous acquisition of secondary electrons and x-rays in SEM results in images with different spatial resolutions, which can be improved by reducing the accelerating voltage. SEM is a powerful imaging instrument that integrates with an energy-dispersive spectrometer for elemental analysis at the specimen surface. It is applicable to both experimental and non-experimental research, providing a confirmatory factor analysis approach to examine relationships among latent variables indicated by multiple observable variables. SEM is a robust and comprehensive analytical technique that can strengthen and increase the accuracy of analyses in medical and health research. Additionally, SEM is widely used in various research areas and industry sectors to study nanoscale features of samples and investigate biological samples.
What are the benefits of using SEM to model behavior?4 answersUsing structural equation modeling (SEM) to model behavior offers several benefits. Firstly, SEM allows for an in-depth investigation and analysis of behavior by examining the relationships between latent variables and observed variables. This enables researchers to understand the underlying factors that influence behavior and identify key intervention points. Secondly, SEM can incorporate multiple variables and their complex interactions, providing a comprehensive understanding of behavior. This allows for a more accurate representation of real-world phenomena and enhances the precision and explanatory power of the model. Additionally, SEM can be used to simulate and predict behavior over time, facilitating the study of dynamic evolution processes. Overall, SEM is a valuable tool for studying behavior as it offers a systematic and rigorous approach to understanding the complex relationships and mechanisms underlying human actions.
What is SEM-PLS?5 answersSEM-PLS (Partial Least Squares Structural Equation Modeling) is a method used to test predictive relationships between constructs by examining the presence of relationships or influences between them. It is particularly useful when dealing with non-normally distributed data patterns and when there is a limited sample size. SEM-PLS combines the strengths of structural equation modeling (SEM) and partial least squares regression (PLS), making it suitable for analyzing complex causal relationships in data with a high degree of collinearity and limited sample size. It allows for the examination of direct and indirect effects among latent variables and can handle multiple dependent variables. SEM-PLS has been used in various studies, including those related to mediating effects in structural equation modeling, factors influencing perceived value in flight ticket booking applications, the impact of social capital on economic development, factors affecting students' career adaptability abilities, and factors influencing digital literacy skills.
What is the difference between cryo SEM and other SEM techniques?5 answersCryo SEM is a technique that allows the characterization of complex drug formulations, biological samples, and soft-matter samples in their native hydrated state. It combines the advantage of studying hydrated samples with high-resolution imaging capability. On the other hand, other SEM techniques, such as room-temperature SEM, do not allow the study of samples in their hydrated state and may not provide the same level of resolution as cryo SEM. Cryo SEM also addresses challenges in imaging non-stained cryogenic biological samples, such as low contrast, curtaining, and charging artifacts, by using a cryogenic plasma FIB/SEM. This technique has been used to produce high-quality SEM images of a range of different biological samples, including bacteria, human cells, and tissue, with resolutions typically achieving 20-50 nm. In summary, cryo SEM offers the advantage of studying hydrated samples with high resolution, making it a valuable tool for the characterization of complex drug formulations and biological samples.
Why use PLS SEM in research?3 answersPartial least squares structural equation modeling (PLS-SEM) is used in research for several reasons. Firstly, PLS-SEM is often used when dealing with complex models, limited sample sizes, and the need for prediction. Secondly, PLS-SEM is preferred in certain fields like business marketing due to its ability to estimate and substantiate theoretically established models with constructs. Additionally, PLS-SEM offers new opportunities for researchers and practitioners in the business marketing field, providing a best practice orientation and supporting future applications. Furthermore, PLS-SEM can be used to explore and clarify research gaps, such as the role of mediating variables in e-commerce success. Finally, PLS-SEM allows for the evaluation of key factors defining quality perception, as seen in the analysis of ultra-premium red wines.