scholarly journals Editorial Comment on the Article by P.A. Ivanov et al. “A New Method of Intraoperative Reposition and Holding of Bone Fragments with Ty-Raps”

2021 ◽  
Vol 27 (4) ◽  
pp. 99-101
Author(s):  
Andrei P. Sereda
Keyword(s):  
Editorial Comment ◽  
Comparative Study ◽  
Low Cost ◽  
Delayed Union ◽  
New Method ◽  
Non Union ◽  
Advantages And Disadvantages ◽  
Number Of Patients ◽  
Bone Fragments

In the editorial comment on the article A New Method of Intraoperative Reposition and Holding of Bone Fragments with Ty-Raps the advantages and disadvantages of the authors method are discussed. The advantages include availability, low cost, convenience and reliability. At the same time, it may lead to excessive devascularization of bone fragments with the risk of delayed union or even non-union. Only a comparative study on a large number of patients can confirm or refute these concerns. The comment also contains a brief review of articles on this issue.

scholarly journals CLINICAL APPLICATION OF BONE MORPHOGENETIC PROTEIN ON FRACTURE HEALING PROCESS

2019 ◽  
Vol 6 (2) ◽  
pp. 48
Author(s):  
Riko Febrian Kunta Adjie
Keyword(s):  
Fracture Healing ◽  
Clinical Application ◽  
Bone Morphogenetic Proteins ◽  
Bone Healing ◽  
Healing Process ◽  
Delayed Union ◽  
Non Union ◽  
Morphogenetic Protein ◽  
Number Of Patients ◽  
And Function

Delayed union or non-union often occurs in bone healing fracture process. The clinical application of Bone Morphogenetic Proteins (BMPs) has helped an increasing number of patients achieve bone regeneration in clinical area lacking simple solutions for difficult bone healing situations. Many researches has proved that BMPs improved fracture healing regeneration. In this review article, introduction and current clinical issues are summarized on efficacy and function of BMPs. Currently, rhBMP-2 and rhBMP-7 have shown clinical significance but other subfamily members of BMPs still lacked of evidence.

Green water-based binders for LiFePO4/C cathode in Li-ion batteries: a comparative study

2021 ◽  
Author(s):  
Xiaojing Zhang ◽  
xinyi Ge ◽  
Zhigang Shen ◽  
Han Ma ◽  
Jingshi Wang ◽  
...  
Keyword(s):  
Comparative Study ◽  
Polyvinylidene Fluoride ◽  
Low Cost ◽  
Green Water ◽  
Li Ion Batteries ◽  
Environmental Friendliness ◽  
Water Based ◽  
Li Ion

Compared with environmentally harmful binder polyvinylidene fluoride (PVDF) in Li-ion batteries (LIBs), water-based binders have many advantages, such as low cost, rich sources and environmental friendliness. In this study, various...

scholarly journals Reinforcement of Recycled Aggregate by Microbial-Induced Mineralization and Deposition of Calcium Carbonate—Influencing Factors, Mechanism and Effect of Reinforcement

Crystals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 887
Author(s):  
Chunhua Feng ◽  
Buwen Cui ◽  
Haidong Ge ◽  
Yihong Huang ◽  
Wenyan Zhang ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Global Economy ◽  
Low Cost ◽  
High Water ◽  
Strengthening Mechanism ◽  
Recycled Aggregate ◽  
Strengthening Effect ◽  
Calcium Carbonate Precipitation ◽  
Environmental Friendliness ◽  
Advantages And Disadvantages

Recycled aggregate is aggregate prepared from construction waste. With the development of a global economy and people’s attention to sustainable development, recycled aggregate has shown advantages in replacing natural aggregate in the production of concrete due to its environmental friendliness, low energy consumption, and low cost. Recycled aggregate exhibits high water absorption and a multi-interface transition zone, which limits its application scope. Researchers have used various methods to improve the properties of recycled aggregate, such as microbially induced calcium carbonate precipitation (MICP) technology. In this paper, the results of recent studies on the reinforcement of recycled aggregate by MICP technology are synthesized, and the factors affecting the strengthening effect of recycled aggregate are reviewed. Moreover, the strengthening mechanism, advantages and disadvantages of MICP technology are summarized. After the modified treatment, the aggregate performance is significantly improved. Regardless of whether the aggregate was used in mortar or concrete, the mechanical properties of the specimens were clearly improved. However, there are some issues regarding the application of MICP technology, such as the use of an expensive culture medium, a long modification cycle, and untargeted mineralization deposition. These difficulties need to be overcome in the future for the industrialization of regenerated aggregate materials via MICP technology.

scholarly journals Clustering-Based Component Fraction Estimation in Solid–Liquid Two-Phase Flow in Dredging Engineering

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5697
Author(s):  
Chang Sun ◽  
Shihong Yue ◽  
Qi Li ◽  
Huaxiang Wang
Keyword(s):  
Clustering Algorithm ◽  
Two Phase Flow ◽  
Low Cost ◽  
Fast Response ◽  
New Method ◽  
Phase Flow ◽  
Reference Distribution ◽  
Two Phase ◽  
Long Time ◽  
Solid Liquid

Component fraction (CF) is one of the most important parameters in multiple-phase flow. Due to the complexity of the solid–liquid two-phase flow, the CF estimation remains unsolved both in scientific research and industrial application for a long time. Electrical resistance tomography (ERT) is an advanced type of conductivity detection technique due to its low-cost, fast-response, non-invasive, and non-radiation characteristics. However, when the existing ERT method is used to measure the CF value in solid–liquid two-phase flow in dredging engineering, there are at least three problems: (1) the dependence of reference distribution whose CF value is zero; (2) the size of the detected objects may be too small to be found by ERT; and (3) there is no efficient way to estimate the effect of artifacts in ERT. In this paper, we proposed a method based on the clustering technique, where a fast-fuzzy clustering algorithm is used to partition the ERT image to three clusters that respond to liquid, solid phases, and their mixtures and artifacts, respectively. The clustering algorithm does not need any reference distribution in the CF estimation. In the case of small solid objects or artifacts, the CF value remains effectively computed by prior information. To validate the new method, a group of typical CF estimations in dredging engineering were implemented. Results show that the new method can effectively overcome the limitations of the existing method, and can provide a practical and more accurate way for CF estimation.

scholarly journals Intelligent Control Wheelchair Using a New Visual Joystick

2018 ◽  
Vol 2018 ◽  
pp. 1-20 ◽  
Author(s):  
Yassine Rabhi ◽  
Makrem Mrabet ◽  
Farhat Fnaiech
Keyword(s):  
Control System ◽  
Intelligent Control ◽  
Visual Recognition ◽  
Low Cost ◽  
Control Device ◽  
Control Technique ◽  
Hand Gesture ◽  
Functional Rehabilitation ◽  
Number Of Patients ◽  
Real Patients

A new control system of a hand gesture-controlled wheelchair (EWC) is proposed. This smart control device is suitable for a large number of patients who cannot manipulate a standard joystick wheelchair. The movement control system uses a camera fixed on the wheelchair. The patient’s hand movements are recognized using a visual recognition algorithm and artificial intelligence software; the derived corresponding signals are thus used to control the EWC in real time. One of the main features of this control technique is that it allows the patient to drive the wheelchair with a variable speed similar to that of a standard joystick. The designed device “hand gesture-controlled wheelchair” is performed at low cost and has been tested on real patients and exhibits good results. Before testing the proposed control device, we have created a three-dimensional environment simulator to test its performances with extreme security. These tests were performed on real patients with diverse hand pathologies in Mohamed Kassab National Institute of Orthopedics, Physical and Functional Rehabilitation Hospital of Tunis, and the validity of this intelligent control system had been proved.

scholarly journals Establishing a Comprehensive English Teaching Pattern Combining the Communicative Teaching Method and the Grammar-Translation Method

2011 ◽  
Vol 4 (1) ◽  
pp. 76 ◽  
Author(s):  
Na Kong
Keyword(s):  
Teaching Methods ◽  
Teaching Method ◽  
New Method ◽  
Translation Method ◽  
English Teaching ◽  
Advantages And Disadvantages ◽  
Grammar Translation Method ◽  
Teaching Pattern ◽  
Definition Of ◽  
Communicative Teaching

Based on the current contradiction between the grammar-translation method and the communicative teaching method in English teaching, this paper, starting with clarifying the task of comprehensive English as well as the definition of the two teaching methods, objectively analyzes their advantages and disadvantages and proposes establishing a new method by fusing them with an elaboration on the reasonability of combining them in the practical teaching of comprehensive English with their complementary advantages.

scholarly journals Applying quality improvement principles to improve accident and emergency department overcrowding and flow in Rwanda: a case study

2015 ◽  
Vol 4 (5) ◽  
pp. 47 ◽  
Author(s):  
Jean Claude Byiringiro ◽  
Rex Wong ◽  
Caroline Davis ◽  
Jeffery Williams ◽  
Joseph Becker ◽  
...  
Keyword(s):  
Emergency Department ◽  
Quality Improvement ◽  
Success Factors ◽  
Low Cost ◽  
Post Intervention ◽  
Triage System ◽  
Accident And Emergency ◽  
Number Of Patients ◽  
Accident And Emergency Department ◽  
The Impact

Few case studies exist related to hospital accident and emergency department (A&E) quality improvement efforts in lowerresourced settings. We sought to report the impact of quality improvement principles applied to A&E overcrowding and flow in the largest referral and teaching hospital in Rwanda. A pre- and post-intervention study was conducted. A linked set of strategies included reallocating room space based on patient/visitor demand and flow, redirecting traffic, establishing a patient triage system and installing white boards to facilitate communication. Two months post-implementation, the average number of patients boarding in the A&E hallways significantly decreased from 28 (pre-intervention) to zero (post-intervention), p < .001. Foot traffic per dayshift hour significantly decreased from 221 people to 160 people (28%, p < .001), and non-A&E related foot traffic decreased from 81.4% to 36.3% (45% decrease, p < .001). One hundred percent of the A&E patients have been formally triaged since the implementation of the newly established triage system. Our project used quality improvement principles to reduce the number of patients boarding in the hallways and to decrease unnecessary foot traffic in the A&E department with little investment from the hospital. Key success factors included a collaborative multidisciplinary project team, strong internal champions, data-driven analysis, evidence-based interventions, senior leadership support, and rapid application of initial implementation learnings. Results to date show the application of quality improvement principles can help hospitals in resource-limited settings improve quality of care at relatively low cost.

Comparison of New Telescopic Video Microlaryngoscopic and Standard Microlaryngoscopic Techniques

1992 ◽  
Vol 101 (1) ◽  
pp. 51-60 ◽  
Author(s):  
Eiji Yanagisawa ◽  
Ken Yanagisawa ◽  
Jay B. Horowitz ◽  
Lawrence J. Mambrino
Keyword(s):  
Video Camera ◽  
New Method ◽  
Depth Of Field ◽  
Microscopic Technique ◽  
New Approach ◽  
Advantages And Disadvantages ◽  
Laryngeal Surgery ◽  
Valuable Method ◽  
Microlaryngeal Surgery ◽  
Television Image

A new approach to microlaryngeal surgery using a specially designed video microlaryngoscope with a rigid endoscopic telescope and an attached video camera was introduced by Kantor et al in 1990. The ability to video document and perform surgery of the larynx by viewing a high-resolution television image was demonstrated. This method was recommended over the standard microscopic technique for increased visibility with greater depth of field, unimpeded instrument access, instant documentation, and superior teaching value. The authors tried this new method and the standard microscopic technique at the same sitting on a series of patients. This paper will compare these two different techniques and discuss their advantages and disadvantages. Although the new method has many advantages, the standard microscopic technique remains as a valuable method in laryngeal surgery.

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