32 research outputs found
The Impact of Distinctive Root Canal Instrumentation Systems on Endotoxin Lessening from the Root Canal: A Systematic Review and Meta-Analysis
Objective:
To determine the impact of distinctive instrumentation systems of the root canals on the endotoxin lessening through the root canals
.
Material and Methods:
From the electronic databases, MEDLINE, PubMed, Cochrane Library, Embase, ISI, Google Scholar have been used to perform a systematic literature review between 2015 and 2020. Therefore, a software program (Endnote X9) has been utilized for managing electronic titles. Searches were performed with keywords, “root canal,” “instrumentation,” "endotoxin,” "root canal preparation,” “biofilm” “endodontics,” and “lipopolysaccharide.” This systematic review has been conducted on the basis of the key consideration of the PRISMA Statement-Preferred Reporting Items for the Systematic Review and Meta-analysis.
Results:
Hence, 163 potentially important abstracts and research topics have been discovered by electronic searches and three studies (3 RCTs) have been included. According to the outputs, any statistically significant differences have been not found between the rotary files and reciprocation (SMD 0.51, 95% CI [0.11, 0.90], p=0.011) (I2 = 49.5%; p=0.138)
.
Conclusion:
Analyses indicated that instrumentation methods decreased the content of endotoxin from the root canals
The Impact of Distinctive Root Canal Instrumentation Systems on Endotoxin Lessening from the Root Canal: A Systematic Review and Meta-Analysis
Objective:
To determine the impact of distinctive instrumentation systems of the root canals on the endotoxin lessening through the root canals
.
Material and Methods:
From the electronic databases, MEDLINE, PubMed, Cochrane Library, Embase, ISI, Google Scholar have been used to perform a systematic literature review between 2015 and 2020. Therefore, a software program (Endnote X9) has been utilized for managing electronic titles. Searches were performed with keywords, “root canal,” “instrumentation,” "endotoxin,” "root canal preparation,” “biofilm” “endodontics,” and “lipopolysaccharide.” This systematic review has been conducted on the basis of the key consideration of the PRISMA Statement-Preferred Reporting Items for the Systematic Review and Meta-analysis.
Results:
Hence, 163 potentially important abstracts and research topics have been discovered by electronic searches and three studies (3 RCTs) have been included. According to the outputs, any statistically significant differences have been not found between the rotary files and reciprocation (SMD 0.51, 95% CI [0.11, 0.90], p=0.011) (I2 = 49.5%; p=0.138)
.
Conclusion:
Analyses indicated that instrumentation methods decreased the content of endotoxin from the root canals
Explain the Relationship Between Profit Forecasts by Management and Investors to Evaluate the Accrual of Investment Funds in the Capital Market in Iran
Today, due to the expansion of economic activities, development of financial markets and capital markets investment boom, especially Stock Exchange by natural and legal persons, the most important tool to make the right decisions and gain expected and optimum use of financial resources, access to which was based on the theory Hausman test and F been done. The aim of this study was to evaluate the relationship between management earnings forecast by 3 index variability of returns, distribution errors of prediction Forecast earnings per share earnings per share of accruals in the fund and investors assessed that the 60 companies listed on the Tehran Stock Exchange which is separately tested and evaluated through regression .significant investment relationship was confirmed. Keywords: Variability of returns ŘŚ Profit forecastsŘŚ Per share earnings forecastŘŚ Investment appraisal accrual
Non-Orthogonal Multiple Access for FSO Backhauling
We consider a free space optical (FSO) backhauling system which consists of
two base stations (BSs) and one central unit (CU). We propose to employ
non-orthogonal multiple access (NOMA) for FSO backhauling where both BSs
transmit at the same time and in the same frequency band to the same
photodetector at the CU. We develop a dynamic NOMA scheme which determines the
optimal decoding order as a function of the channel state information at the CU
and the quality of service requirements of the BSs, such that the outage
probabilities of both BSs are jointly minimized. Moreover, we analyze the
performance of the proposed NOMA scheme in terms of the outage probability over
Gamma-Gamma FSO turbulence channels. We further derive closed-form expressions
for the outage probability for the high signal-to-noise ratio regime. Our
simulation results confirm the analytical derivations and reveal that the
proposed dynamic NOMA scheme significantly outperforms orthogonal transmission
and existing NOMA schemes.Comment: This paper has been submitted to IEEE WCNC 201
Statistical Modeling of FSO Fronthaul Channel for Drone-based Networks
We consider a drone-based communication network, where several drones hover
above an area and serve as mobile remote radio heads for a large number of
mobile users. We assume that the drones employ free space optical (FSO) links
for fronthauling of the users' data to a central unit. The main focus of this
paper is to quantify the geometric loss of the FSO channel arising from random
fluctuation of the position and orientation of the drones. In particular, we
derive upper and lower bounds, corresponding approximate expressions, and a
closed-form statistical model for the geometric loss. Simulation results
validate our derivations and quantify the FSO channel quality as a function of
the drone's instability, i.e., the variation of its position and orientation.Comment: This paper has been submitted to ICC 201