On the Error in Phase Transition Computations for Compressed Sensing

Evaluating the statistical dimension is a common tool to determine the asymptotic phase transition in compressed sensing problems with Gaussian ensemble. Unfortunately, the exact evaluation of the statistical dimension is very difficult and it has become standard to replace it with an upper-bound. To ensure that this technique is suitable, [1] has introduced an upper-bound on the gap between the statistical dimension and its approximation. In this work, we first show that the error bound in [1] in some low-dimensional models such as total variation and $\ell_1$ analysis minimization becomes poorly large. Next, we develop a new error bound which significantly improves the estimation gap compared to [1]. In particular, unlike the bound in [1] that is not applicable to settings with overcomplete dictionaries, our bound exhibits a decaying behavior in such cases

The otherness among Other

27 pagesExamining subjectivity and its association with a relocated body in diasporic circumstances has become the core concept of my work as an artist. I attempt to justify my own Being and comprehend the reflection of it through the framework of the Other. The historical discourse of otherness is embedded in Hegelian self-consciousness dialectic, which views the self as an impotent entity in recognition of itself. It also introduces the necessity of the Other in the process of the self composing its subjectivity. Although post-modern and post-structuralist thinkers later disputed this dichotomization in the structure of dialectic, the essence of Othering remains as a human cultural and historical residue

Dimensional Accuracy of Polyvinyl Siloxane Impression Materials Considering Impression Techniques– A Literature Review

Objectives Impression accuracy is the main determinant of the fit, form and function of prosthetic restorations. Polyvinyl siloxane (PVS) is the material of choice in most clinical situations. The purpose of this paper is to provide an up-to-date review of scientific articles which discuss the dimensional accuracy of PVS impression material using various impression techniques, tray types and spacers. Besides, the procedure, advantages and disadvantages of commonly used impression techniques, technique modifications and innovations are also reviewed.Method An electronic search of scientific papers from 1990 to 2018 was carried out using MEDLINE and Google Scholar databases using the search terms “accuracy and polyvinyl siloxane and impression technique” and “accuracy and addition silicone and impression technique”.Results Searching the key words yielded a total of 312 articles. By application of inclusion and exclusion criteria, the obtained results were further reduced to 35 citations.Conclusion Impression technique is a critical variable in the accuracy of PVS impressions. Dual-phase 2-step technique with 1 to 2 mm space for the light body is proven to be highly accurate and is still considered as the standard technique. The use of 2-step technique without providing a space for the wash material is rejected by the literature. Triple-phase 2-step techniques including “matrix impression system” have also functioned well and even superior to traditional dual-phase 2-step technique. Papers suggest that custom trays do not significantly improve the accuracy of impressions and rigid stock trays are suitable alternative

Assessment on Quantum skills of employed nurses in Ayatollah Kashani and Hajar Hospitals of Shahrekord city in 2015

Background and aims: Skills of nurses due to their professional sensitivity and their relation in public health should continually be monitored. Therefore, the present study was carried out to determine the Quantum skills of nurses employed in Ayatollah Kashani and Hajar hospitals of Shahrekord city. Methods: This cross- sectional descriptive - analytic study was performed in 2016 in Ayatollah Kashani and Hajar hospitals of Shahrekord city. One hundred nurses selected by stratified random sampling and data were collected using a valid questionnaire. The data were analyzed by SPSS 21 software through Chi-Square and independent t-test at the significant level of P<0.05. Results: The Grade Point Average (GPA) of each septel quantum skills including seeing, thinking, feeling, knowing, acting, trusting and being skills in nurses were significantly higher than criterion mean score (P>0.05). Totally, the GPA of nurses’ quantum skills was 136.69±10.07 that had a significant differenc compared to Criterion Mean Score (CMS=105) (P<0.001). Conclusion: According to the rathered results, it can be stated that nurses employed in Ayatollah Kashani and Hajar hospitals of Shahrekor city had a desirable status in the septel quantum skills