Organometallic 1.2 Shift Type Migration Reactions

1981 ◽  
pp. 151-167
Author(s):  
Heinz Berke ◽  
Roald Hoffmann
Keyword(s):  
Shift Type

scholarly journals Shift-type invariant subspaces of contractions

2007 ◽  
Vol 246 (2) ◽  
pp. 281-301 ◽  
Author(s):  
László Kérchy
Keyword(s):  
Invariant Subspaces ◽  
Shift Type ◽  
Type Invariant

scholarly journals Duality of Complex Systems Built from Higher-Order Elements

Complexity ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-15 ◽  
Author(s):  
Dalibor Biolek ◽  
Zdeněk Biolek ◽  
Viera Biolková
Keyword(s):  
Nonlinear Systems ◽  
Complex Systems ◽  
Higher Order ◽  
Duality Principle ◽  
Shift Type ◽  
Hardware Emulation ◽  
Classical Duality ◽  
Memristive Circuits ◽  
Circuit Elements

The duality of nonlinear systems built from higher-order two-terminal Chua’s elements and independent voltage and current sources is analyzed. Two different approaches are now being generalized for circuits with higher-order elements: the classical duality principle, hitherto restricted to circuits built from R-C-L elements, and Chua’s duality of memristive circuits. The so-called storeyed structure of fundamental elements is used as an integrating platform of both approaches. It is shown that the combination of associated flip-type and shift-type transformations of the circuit elements can generate dual networks with interesting features. The regularities of the duality can be used for modeling, hardware emulation, or synthesis of systems built from elements that are not commonly available, such as memristors, via classical dual elements.

Measurement of Micrometer Order Displacement Using Phase-Shift Type Ultrasonic Correlation System in MHz Range

1996 ◽  
Vol 35 (Part 1, No. 5B) ◽  
pp. 3177-3179 ◽  
Author(s):  
Kazuhiko Imano ◽  
Hiroshi Inoue
Keyword(s):  
Phase Shift ◽  
Shift Type ◽  
Correlation System

True and apparent spectra of buried polarizable targets

Geophysics ◽  
1984 ◽  
Vol 49 (2) ◽  
pp. 171-176 ◽  
Author(s):  
D. Guptasarma
Keyword(s):  
Numerical Modeling ◽  
Phase Shift ◽  
Host Rock ◽  
Field Measurements ◽  
Phase Spectrum ◽  
Complex Frequency ◽  
Minimum Phase ◽  
Dilution Factor ◽  
Shift Type ◽  
Phase Spectra

If the chargeability of a buried target is not infinitesimal, the popularly used low chargeability approximation formulated by Seigel (1959) can produce large errors in the computation of apparent polarizability spectra. A more accurate alternative approximation, based on a complex, frequency dependent “dilution factor” is presented. It turns out that for dispersions of the minimum phase shift type this approximation can be somewhat simplified and that for targets with such a dispersion, buried in a nondispersive host rock, the apparent log‐phase spectrum is only slightly different from a vertically shifted version of the true phase spectrum of the target. These results should be useful for the computation of apparent polarizabilities in numerical modeling for IP, and in attempts for mineral discrimination through field measurements of phase spectra.

ChemInform Abstract: Cyclopropane-Shift Type Reaction of Diaryl(2-halogenocyclopropyl)methanols Promoted by Lewis Acids.

ChemInform ◽  
2000 ◽  
Vol 31 (43) ◽  
pp. no-no
Author(s):  
Kazunori Wakasugi ◽  
Yoshinori Nishii ◽  
Yoo Tanabe
Keyword(s):  
Lewis Acids ◽  
Type Reaction ◽  
Shift Type

scholarly journals Influence of Obesity on Heart Rate Variability in Nurses with Age and Shift Type as Moderators

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Wen-Pei Chang ◽  
Chia-Hui Wang ◽  
Yen-Kuang Lin
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Negative Impact ◽  
Low Frequency ◽  
High Body Mass Index ◽  
The Body ◽  
Autonomic Nerve ◽  
Shift Type ◽  
Interaction Term ◽  
High Bmi

Obesity is a risk factor of cardiovascular disease-related mortality and may be associated with changes in the autonomic nerve activity. Nurses working shifts and caring for patients are under great mental and physical pressure, and research has proven that these can negatively affect the body. The objective of this study was to examine the influence of obesity in nurses on their heart rate variability (HRV) and determine whether age or shift type moderates this influence. A questionnaire survey and HRV measurements were conducted on nurses at a hospital in Taiwan during a routine employee health checkup. HRV analysis was conducted using a noninvasive HRV monitor for five minutes. A total of 242 nurses with a mean age of 28.98 ± 6.56 years were enrolled in this study. An overly large waist circumference (WC) had a negative impact on high frequency (HF), low frequency (LF), and standard deviation of normal-to-normal interval (SDNN), while an overly high body mass index (BMI) had a negative impact on very low frequency (VLF) and SDNN. The interaction term “overly large WC × age” had a negative impact on HF ( β = − 0.21 , p = 0.010 ) and LF ( β = − 0.18 , p = 0.030 ), whereas the interaction term “overly high BMI×age” had a negative impact on HF ( β = − 0.27 , p = 0.001 ), LF ( β = − 0.19 , p = 0.023 ), and VLF ( β = − 0.17 , p = 0.045 ). The interaction terms “overly large WC × shift type” and “overly high BMI × shift type” did not influence any HRV parameters. As age increased, so did the degree to which the HF and LF of nurses with an overly large WC were lower than normal, and so did the degree to which the HF, LF, and VLF of nurses with an overly high BMI were lower than normal.

scholarly journals Assessment of safety climate status in personnel of Naeen Tile Industries Company in 2019

2021 ◽  
Author(s):  
Kh Taherzadeh Chenani ◽  
R Jafari Nodoushan ◽  
F Madadizadeh ◽  
AM Vaziri Sarashk
Keyword(s):  
Occupational Safety ◽  
Safety Climate ◽  
Simple Random Sampling ◽  
Occupational Accidents ◽  
Cross Sectional ◽  
Significance Level ◽  
Tile Factory ◽  
Shift Type ◽  
Work Area ◽  
Climate Analysis

Introduction: safety occupational safety researchers have always analyzed climate analysis. Climate can be investigated at different organizational levels. The purpose of the present study was to examine the safety climate among Nain tile factory workers and its relationship with having a history of occupational accidents. Materials and Methods: This cross-sectional and descriptive-analytical study was conducted in 2019 among the Nain Tile factory staff. The Nordic Safety Climate Questionnaire (NOSACQ-50) was used to assess the safety climate among workers of the different organizational departments. Out of 252, 142 workers were selected by simple random sampling. Descriptive and analytical statistics were used to analyze the data. The instrument's internal consistency was also calculated by calculating Richardson's coefficient of coefficient 0.942.coefficients were used for analytical analysis. Analyzes were performed in SPSS software version 19 with a significance level of 5%. Results: The reliability coefficient of the whole questionnaire was calculated 0.95 using Cronbach's alpha test. The safety climate score was higher than two in all domains. Safety climate score was significantly correlated with work area and shift type. The highest score of safety climate was in the crusher section as well as in day shift work. There was no significant relationship between safety climate score and other variables of the study. Conclusion: The safety atmosphere score is affected by the day shift and the workplace section. Therefore, it is suggested to modify the job plan and work shifts to improve the prevailing safety climate.

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