scholarly journals Chitosan Applications on Pharmaceutical Sciences: A Review

2019 ◽  
Vol 9 (3) ◽  
pp. 167-181
Author(s):  
Cintia Alejandra Briones Nieva ◽  
Mercedes Villegas ◽  
Alicia Graciela Cid ◽  
Analía Irma Romero ◽  
José María Bermúdez
Keyword(s):  
New Technologies ◽  
Immunological Response ◽  
Biological Properties ◽  
Future Research ◽  
Pharmaceutical Sciences ◽  
Chemical Derivatization ◽  
Current State ◽  
Pharmaceutical Applications ◽  
Novel Applications ◽  
State Of Art

Background: Chitosan (CS) is a biomaterial derived from chitin, known for its excellent biological properties. One of the most interesting features of CS is its potential for chemical derivatization, which makes it a versatile material and allows to expand its applications. In the last years, the interest on this polymer and its pharmaceutical applications has notably increased. This biopolymer is being widely studied for its interesting properties, such as bioadhesion, antimicrobial activity, biocompatibility, and biodegradability. Other promising properties of CS include its modulation of immunological response, hemostasis, and wound and bone healing activity. Objective: In this work, a critical review is performed covering its conventional and novel applications, specially focused on pharmaceutical area, providing a clear picture of the current state of art to serve as a basis to direct future research in this field. Conclusion: Despite all the qualities of this polymer, there are only few CS-based products in the market, so it is a priority to enhance the research to develop new technologies and CS-based systems to enforce this biopolymer in the industry.

scholarly journals Smart Wheelchair: A Literature Review

2018 ◽  
Vol 7 (2) ◽  
pp. 63 ◽  
Author(s):  
Kedar Sukerkar ◽  
Darshitkumar Suratwala ◽  
Anil Saravade ◽  
Jairaj Patil ◽  
Rovina D’britto
Keyword(s):  
Disabled Persons ◽  
Assistive Devices ◽  
Daily Activities ◽  
Future Research ◽  
Disabled People ◽  
Smart Wheelchairs ◽  
Current State ◽  
And Robotics ◽  
State Of Art ◽  
Smart Wheelchair

In today’s world there are many disabled persons who find it difficult to perform movements or perform daily activities. This types of persons are mainly dependent on others for their assistance. But they can become self-independent and perform some daily activities on their own with the help of assistive devices. The most widely used assistive devices are Wheelchairs. Wheelchairs is basically a chair fitted with wheels, which can help people move around who cannot walk because of illness, disability or injury. But there are many disabled people with weak limbs and joints who cannot move the wheelchair. Thus, Smart Wheelchair can benefit a lot to them and everyone in society. Smart Wheelchairs are electric powered wheelchairs with many extra components such as a computer and sensors which help the user or guardian accompanying wheelchair to handle it easily and efficiently. The recent development in the field of Artificial Intelligence, Sensor technologies and Robotics help the growth of wheelchairs with new features. This paper is to review the current state of art of Smart Wheelchairs and discuss the future research in this field.

Structure of Digital Textbook

2015 ◽  
pp. 67-92
Keyword(s):  
Basic Structure ◽  
Future Research ◽  
Distinctive Features ◽  
Digital Textbook ◽  
Digital Devices ◽  
Current State ◽  
Digital Textbooks ◽  
The Common ◽  
Meta Analyses ◽  
State Of Art

Many projects around the world aim to use and develop digital textbooks. However, differences between aims, affordances, methodologies and technologies cause many issues, controversies and concerns to arise. This chapter aims to explore the basic structure of digital textbooks. The focus is on the non-linear mechanisms of eTextbooks and Open Source Textbooks. At the beginning is investigated the current state-of-art in order to arrange the distinctive features in a hierarchical manner. Then, it assembled the digital textbook infrastructure. The proposed methodology allows identifying the common elementary components of digital textbooks through meta-analyses of proposed methodologies. To arrive at this framework, it explored the diversity of contexts, educational platforms, PC, digital devices, contents and processes. The chapter concludes with a call for future research of digital textbooks functionalities, analysing them in a diversity of four learning environments.

scholarly journals Software-Defined Networking for Unmanned Aerial Vehicular Networking and Security: A Survey

Electronics ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 1468 ◽  
Author(s):  
James McCoy ◽  
Danda B. Rawat
Keyword(s):  
Software Defined Networking ◽  
Cyber Attacks ◽  
Future Research ◽  
Security Vulnerabilities ◽  
Research Directions ◽  
Current State ◽  
Military Applications ◽  
Future Research Directions ◽  
Uav Security ◽  
State Of Art

Despite the immense benefits offered by the utilization of unmanned aerial vehicles (UAVs) in civilian and military applications, significant work needs to be done to ensure that these systems are able to securely communicate and resiliently operate to accomplish the mission. As the UAVs grow with their popularity and usability for different applications, there is a dire need to ensure that UAVs and their networks are capable of mitigating cyber-attacks on the fly. One approach that has gained considerable popularity is Software-Defined Networking (SDN) based solutions. SDN is a networking paradigm that has gained attention due to its dynamic flexibility to program networks and increase network visibility, and its potential to assist in the mitigating security vulnerabilities in the network including the network of UAVs. This article provides an overview of recent advances, and current state of art related to security vulnerabilities and SDN enabled countermeasures. This paper also presents a comparison of different approaches in a tabular form and a discussion of challenges and future research directions with respect to UAV security.

scholarly journals CALL in the Form of Simulation Games: Teaching English Vocabulary and Pronunciation through Sims

2013 ◽  
Vol 8 ◽  
pp. 57-65
Author(s):  
Hussein Meihami ◽  
Bahram Meihami ◽  
Zeinab Varmaghani
Keyword(s):  
Second Language ◽  
Foreign Language ◽  
Language Learning ◽  
Second Language Learning ◽  
New Technologies ◽  
Teaching English ◽  
Simulation Games ◽  
Current State ◽  
Games Teaching ◽  
State Of Art

When discussing the current state of art with regard to the use of new technologies in foreign and second language learning one thing is blinking sharply: Simulation Games. Simulator games have prepared a great pedagogical context for young sailors and mariners. The importance of creating pedegugical context for sailors and mariners to learn English as a second or foreign language is the essence of this study. Simulation games show potential not just for engaging and entertaining users, but also in promoting language learning. In this research we survey the effect of simulation Games on sailor and mariners’ English vocabulary and pronunciation learning of Khoramshahr Navy University. The results clearly showed that these kinds of games have a significant impact of learners, especially when they learn English as ESP like the sailors and mariners.

Factors Affecting Customer Switching Behavior towards Hybrid Electrical Vehicles (HEV’s) from a Customer Perspective in Jordan

2018 ◽  
Vol 1 (3) ◽  
pp. 53
Author(s):  
Bushra Mahadin
Keyword(s):  
Decision Making ◽  
Consumer Behaviour ◽  
New Technologies ◽  
International Marketing ◽  
Current Trend ◽  
Switching Behavior ◽  
Future Research ◽  
Decision Making Process ◽  
Customer Switching ◽  
Electrical Vehicles

Purpose-This paper aims to investigate factors that affect customer switching from Internal Combustion Engine Vehicles (ICEV’s) to Hybrid Electrical Vehicles (HEV’s), in Jordan for the period of (2010-2014).Design/methodology/approach-A self-administered survey was hand-delivered to the targeted sample of car users in Jordan. The authors delivered 400 questionnaires to customers, from which 333 were deemed valid for the analysis, corresponding to the percentage of (83.25%) which indicates the validity of the study. Findings- There was no difference in switching behavior between (ICEV’s) and (HEV’s) based on gender in the Jordanian market. Fuel consumption efficiency was the number one variable that supports the switching behavior towards (HEV's), followed by Eco friendliness, lower taxes and technological features. Price and the current trend in the market were the least supporting factors. In addition to that the perception of the battery life of (HEV's), limited choices in the market, lack of information and fear of the relatively new technology were the major hindering factors of choosing an (HEV).Research limitations-Future research needs to investigate other factors that may affect customers’ behavior such as perceived image, trust, and subjective norms. Future research should investigate into the importance of environmental awareness and new technologies, and gender differences in behavior. From an international marketing standpoint, comparative studies between Jordanian and non-Jordanian customers are potential areas of future research for international marketing strategies and cross-cultural consumer behaviour analysis. Practical implications-The paper identifies the determinants of switching behavior. marketers should focus addressing customers concerns in terms of providing enough information and building awareness towards the technology and it's benefits towards the society and the environment.Originality/value-Our study is one of the few in Jordan that investigates the switching behavior towards vehicles technology. Our study is thought to have made a modest contribution to consumer behaviour literature and, specifically, for decision making process. It offers marketers insights into the determinants of switching behavior towards the hybrid vechicle technology and how this contribute to consumers’ decision making process and attitudes to achieve the intended behavioural outcomes

Self-leadership Training Review

2019 ◽  
Author(s):  
Andrew Sidwell ◽  
Michael Perry
Keyword(s):  
Leadership Training ◽  
Future Research ◽  
Training Methods ◽  
Current State ◽  
A Current

The purpose of this article was to examine the current state of self-leadership training. The authors analyzed all published, publicly available studies (in English) pertaining to self-leadership training methods, offering a current state of self-leadership training, and implications for future research.

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