Body Sensor Network: A Modern Survey Performance Study

Body Sensor Network: A Modern Survey Performance Study ABSTRACT As because of modern emerging technologies, low power integrated circuits and wireless communication has enabled a new generation of sensors network. The incorporation of these sensors networks in Health care is very popular and plays a vital role in breath breaking situations. The deployment of monitoring hardware incorporated with various wireless standards plays a key role in regard to interoperability, invasion privacy, sensors validation data consistency and interference related issues. The goal of our paper is to make a comparative study in realm of modern wireless trends such as Bluetooth, Wi-fi, Zigbee and Wibree and related facets. Index Terms- Wireless Body area network, Zigbee, Wi-fi, Bluetoooth INTRODUCTION Now a days, Wireless Sensors Network (WSN) has becomes a assured technology in the realm of advanced applications. The one of its latent position is in the form of unguided biomedical sensor network to determine physiological sign. Wireless Body Area Network (WBAN) is a unguided network utilized for interaction among sensor nodes in or about the human body in order to supervise critical body parameters and activities. These supervising signs are collected by a personal server, e.g. PDC or Smart phones which acts as a sink for the information of the sensors and send them to caregivers for proper health supervising. The personal server have some memory in which some results are arranged which it gives to the patient at the time of emergency it acts like a feedback, if the situation is not handle by the PDC then it transfers the signal to caregivers by unguided media. There are different issues highlighted in the employment of WBAN technology. This survey executes a atomistic review on pronominal investigations that emphasis in procured related facts in WBAN as well as WLAN. This paper is arranged into the different parts which provides a short introduction of WBAN and WLAN and look out attributes of pronominal differences between them and fetch attributes of WBAN and pulls general architecture and handle postulates in WBAN and also intercommunicating much on security issues, we shall also see the features of short range wireless techniques and compare them according to their performance. And at last gear up related investigations in security bare for WBAN. ATTRIBUTES OF WBAN WBAN is a communication network between human and computers through wearable devices. To establish a interaction between these devices, unguided sensor network and ad hoc network techniques may be used. The tiny sensor senses the signals from the body and send it to the processor through unguided media[1]. But due to some emblematic features of WBAN current protocols create for these network are not always feasible to favour WBAN. To favour this level, TABLE 1 modifies the general differences between WSN and WBAN[2][3]. WBAN was introduced from real WSN (WPAN) technologies[4]. WPAN is a personal area network using unguided acquaintance consistently within a short range ( Basic requirement of WBAN include the requirements of WPAN, such as low power, low data rate unguided sensors network standard Zigbee. Despite the fact that Zigbee does not fetch majority of core technical requirements of WBAN features and the for a standard specifically designed for WBAN. Diagnosticate the great market potential and rapid technological enlargement in this field. The IEEE is ongoing an 802.15.6 standard optimized for low power WBAN favouring at a data rate from 10Kbps to 10 Mbps[1]. The exclusive endowment compared to majority of core WPAN are as follows: WBAN is a small scale network rather than WPAN is a relatively short range communication technique inclusive the communication in or on a human body with the maximum range of ( A star topology is basically used WBAN where communication is organised in the heart of sensor nodes and is directly linked to a master node. Despite, it cannot always meet the desired authenticity requirement. Thus a star-mesh hybrid topology extends the fashionable approach and creates mesh networking among central coordinates in multiple star networks. Gadgets incorporating WBAN are firmly limited in their computational capabilities and required scalable completion; data rate upto10Mbps, and power consumption upto40MW. Data that are detected, collected and transmitted in WBAN is comparatively sensitive; highly secure and confidential. Gadgets of WBAN closely surround the human body to consist of its transportation system are highly safety requirements. ACCUSTOMED ARCHITECTURE The proposed wireless area body network for health monitoring integrated into a border multitier medicine system in this architecture ,WBAN is compared to other wireless network. In fig 1 a WBAN compared with other types of wireless network[2]. Each type of network has a typical enabling technology, defined by IEEE. A WPAN used IEEE 802.15.1 (Bluetooth) or 802.15.4 (zigbee) , a WLAN uses IEEE 802.11 (Wi-fi) WMAN IEEE 802.16 .The communication in a WAN can be established via satellite links. As declared before , admitting challenges faces by WBAN are in many ways similar to WSN, there are elemental differences between the two requiring special attention. Network and Complex Systemswww.iiste.org ISSN 2224-61 OX (Paper) ISSN 2225-0603 (Online)pn Vol.3, No. 1, 2013-Selected from Inter national Conference on Recent Trends in Applied Sciences with Engineering Applications IISTe In TABLE 2, a schematic overview of differences between WSN and WBAN is given [2][3][4]. TABLE 2:SCHEMATIC ANALYSIS OF DIFFERENCE BETWEEN WSN AND WBAN IS GIVEN: CHALLENGES WSN WBAN Scale Monitored environment (m/km) Human body (cm/m) Node number Many redundant nodes for wide area coverage Fewer, limited in space Result accuracy Through node redundancy Through node accuracy and robustness Node tasks Node performs a dedicated task Node performs multiple task Node size Small is preferred, but not important Small is essential Network topology Very likely to be fixed and static More variable due to body movement Data rates Homogeneous Heterogeneous Node replacement Performed easily, nodes even disposable Replacement of implanted nodes difficult Node lifetime Several years/months Several years/months, smaller battery capacity Power supply Accessible and likely to be replaced more easily and frequently Inaccessible and difficult to replace in an implantable setting Power demand Likely to be large, energy supply easier Likely to be lower, energy supply more difficult Energy scavenging source Most likely solar and wind power Most likely motion(vibration) and thermal (body heat) Biocompatibility Not a consideration in most applications A must for implants and some external sensors Securitylevel Lower Lower Higher, to protect patient information Impact of data loss Likely to be compensated by redundant nodes More significant, may require additional measures to ensure QoS and real-time data delivery Wireless Technology Bluetooth, Zigbee, GPRS, WLAN, Low power technology required Impact of data loss Likely to be compensated by redundant nodes More significant, may require additional measures to ensure QoS and real-time data ENGROSSSMENT OF WBAN We classify demand of WBAN into two categories i.e. system and security. Further detail is described in the following subsection. A.System exigency This subsection provides brief description of system requirements that viewed in three different aspects such as type of devices, data rate and energy. Types of devices. Sensor node: A device that responds to and gathers data on physical catalyst processes the data if necessary and reports this information wirelessly. It consists of several components which are sensor hardware, a power unit, a processor, memory and a transmitter or transceiver. Gateway: It gathers all the information acquired by the sensor nodes and informs the users. The components area power unit, memory and transreciever. This device is also called a body control unit(BCU),body gateway or a sink. Monitoring Server: It is consists of database for data storage and processing and analyzing software for delivering system intended services. Data rates The reliability of the data transmission is provided in terms of the necessary bit error rate (BER) which is used as a measure for the number of packets lost. For a medical device, the reliability depends on the data rate. Low data rate devices can cope with a high BER while devices with a higher data rate require a lower BER. The required BER is also dependent on the criticalness of the data. Energy Energy consumption can be divided into three domains: sensing, communication and data processing[2][5]. Despite, the energy consumption for communication is more than computation in WBAN. Further, higher security requirements usually correspond to more energy consumption for cryptographic operations. B. Security Requirements The security and privacy of patient-related data are two indispensable components for the system security of the WBAN. By data security, it means the protection of information from unauthorized users while data being stored and transferred and data privacy means right of individuals to control the collection and use of personal information about themselves. Security and privacy issues are raised automatically when the data is created, transferred, stored and processed in information systems[8]. The Health Insurance Portability and Accountability Act (HIPAA) mandates that, as the sensors in WBAN collect the wearers health data (which is regarded as personal information), care needs to be taken to protect it from unauthorized access and tampering[9][11]. Because WBAN systems and their supporting infrastructure are operated with extremely stringent constraints, they present a greater challenge in the areas of throughput, data integrity and data security when compared to traditional clin ical systems. The security mechanisms employed in WBAN for the later need specific features that should be taken into account when designing the security architecture. Thus, the system needs to comply with the following major security requirements as in TABLE 3 [4][8][10]. TABLE 3: MAJOR SECURITY REQUIREMENTS IN WBAN Major security requirement Description Data storage security requirements Confidentially Patient-related data should be kept confidential during storage periods. Especially, its confidentially should be robust against node compromise and user collusion. Encryption and Access Control List are main methods providing data confidentiality. Integrity assurance Patient-related data must not be modified illegally during storage periods Dependability Patient-related data must be readily retrievable when node failure or data erasure happens. Data access security requirements Access control (privacy A fine-grained data access policy shall be enforced to prevent unauthorized access to patient- related data generated by the WBAN. Accountability When a user of the WBAN abuses his/her privilege to carry out unauthorized actions on patient-related data, he/she should be identified and held accountable Revocability The privileges of WBAN users or nodes should be deprived in time if they are identified as compromised or behave maliciously. Non repudiation The origin of a piece of patient-related data cannot be denied by the source that generated it. Other security requirements Authentication The sender of the patient-related data must be authenticated, and injection of data from outside the WBAN should be prevented Availability The patient-related data should be accessible even under denial-of-service (DoS) attacks. WBAN APPLICATIONS The WBAN application targeted IEEE 802.15.6 standard are divided into medical and non medical application as given in fig.2. Medical application include collecting vital information of a patient continuously and forward it a remote monitoring station for further analysis[6]. The huge amount can be used to prevent the occurrence of myocardial infarction and treat various diseases such as gastrointestinal tract, cancer, asthma neurological disorder. WBAN can also be used to help people with disabilities. For ex retina prosthesis, chips can be planted in human eye to see at an adequate level. Non medical application include monitoring forgetting things, data file transfer, gaming and social networking application. In [7] gaming, sensor in WBAN can collect coordinate movements of character in the same, ex- moving cricket player or capturing the intensity of ball in tennis. The use of WBAN in social networking allows people to exchange digital profile or business allows people to exchang e digital profile or business card only by shaking hands. Fig. 2. WBAN applications RELATED RESEARCH Several research groups have been developing the implantable or wearable devices for health monitoring in WBAN communications. However, these researches mainly focus on building system architecture and in lesser extent on developing networking protocols. Besides, it is difficult to discover solutions providing security for WBAN and security has generally been covered separately. Extending the scope of technology, there are several security protocols in general sensor networks. Security Protocols for Sensor Networks (SPINS) is a set of protocols for achieving security requirements like confidentiality, integrity and authenticity in sensor networks and uses several symmetric keys to encrypt the data as well as compute the Message Authentication Code (MAC)[4][11]. However, SPINS is only considered in general sensor networks, so that it is inadequate to apply in WBAN as it has environmental features like the human body and limited computing resources. Some researches show the security for sensor nodes in or on the human body in WBAN. They show that the sensors have to make use of cryptographic algorithms to encrypt the data they send to control node and the random number which is used in security protocols can be generated by biometrics[12]. Biometrics approach uses an intrinsic characteristic of the human body as the authentication identity or the means of securing the distribution of a cipher key to secure inter-WBAN communications. At initial stage, several security schemes of WBAN are established by the symmetric cryptosystem due to limited resources, but have problems like delaying the disclosure of the symmetric keys and providing weak security relatively since it is not resilient against physical compromise[13]. Furthermore, the complexity of sensor nodes key managements in WBAN gives each component overload. On the contrary, some researches utilizing the asymmetric cryptosystem in mobile and ad hoc networks also have been proposed, and tried to examine the unique characteristics of WBAN[8][14]. One concern about the asymmetric cryptosystem is a resource constraint problem but recent work has shown that performing ECC consumes a lot less of memory and computing power[12][14]. These researches dealt with a scope of limited WBAN but they exclude the implanted sensor networks. The objective of WBAN is also the implementation of body area network that can contact with everywhere in, on, and out the human body. By comparison, each approach has several issues to be considered in terms of the security services in WBAN. Further, there is a trade-off between performance and security. Related to these, another research group has implemented these two heterogeneous cryptosystems in their research which provides security and privacy to WBAN. In [4], they believe that these two cryptosystems can be applied in the authentication of WBAN depleting each weak point of them at once. They primarily focus on the authentication in the overall coverage of WBAN including in-, on- and out body to provide the strong and adequate security for WBAN. CONCLUSION WBAN is an emerging and promising technology that will change peoples healthcare experiences revolutionarily. It brings out a new set of challenges in terms of scalability, sensor deployment and density, energy efficiency, security and privacy and wireless technology. In this survey, we have reviewed the current development on Wireless Body Area Network and we focused in security issues faced by this technology. In particular, this work presents an overview of the differences between Wireless Body Area Network and Wireless Sensor Network. We presented differences of architecture in WBAN and other type of Wireless sensor network. Several key applications will benefit from the advanced integration of WBAN and emerging wireless technologies. They include remote health monitoring, military, sports training and many others. It is also important to highlight here that WBAN poses with various type of security problems. Thus, we believe that WBAN requires a strong security system and part of it is authentication. A secured authentication system is extremely needed in various applications WBAN technology particularly in medical and military. The proposed protocol is potentially useful to be utilize in WBAN by satisfying their technical requirements keeping pace with the standardization of IEEE 802.15.6[4]. Our next step is to discover hybrid authentication protocol in providing a strong security system for WBAN. ACKNOWLEDGMENT This work is supported by National Institute of Technology, Patna as a part of partial fulfilment of Post Graduate degree in Communication systems for the academic year of 2011-2013. REFERENCES Selimis, Georgios et al. A Lightweight Security Scheme for Wireless Body Area Networks: Design, Energy Evaluation and Proposed Microprocessor Design, Journal of Medical Systems, 2011, pp. 1-10-10, doi: 10.1007/s10916-011-9669-2. Latre, Benoit, Bart Braem, Ingrid Moerman, Chris Blondia, and Piet Demeester. A survey on wireless body area networks, Wireless Networks, vol. 17, 2010, pp. 1 18, doi: 10.1007/s11276-010-0252-4. Chen, M., Gonzalez, S., Vasilakos, A., Cao, H., Leung, V. C. M. Body Area Networks: A survey, Mobile Networks and Applications, vol. 16, 2011, pp. 171-193, doi:10.1007/s11036-010- 0260-8. Jang, C. S., Lee, D. G., Han, J.-W., Park, J. H Hybrid security protocol for wireless body area networks, Wireless Communications and Mobile Computing, vol. 11, 2011, pp. 277-288, doi: 10.1002/wcm.884. Jingwei Liu and Kyung Sup Kwak. Hybrid security mechanisms for wireless body area networks, Ubiquitous and Future Networks (ICUFN), 2010 Second International Conference on , 2010, pp. 98- 103, doi: 10.1109/ICUFN. 2010.5547221. IEEE P802.15.6/D01,Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Wireless Personal Area Networks (WPANs) used in or around a body, May 2010. S. Saleem, S. Ullah, and K.S. Kwak, A Study of IEEE 802.15.4 Security Framework for Wireless Body Area Networks, Sensors, vol.11, No.2, pp. 1383-1395, 2011. Lim, S., Oh, T. H., Choi, Y. B., Lakshman, T.. Security Issues on Wireless Body Area Network for Remote Healthcare Monitoring, 2010 IEEE International Conference on Sensor Networks Ubiquitous and Trustworthy Computing, 2010, pp. 327-332, doi: 10.1109/STUC.2010.61. Venkatasubramanian, K. K., Banerjee, A., Gupta, S. K. S.. PSKA: usable and secure key agreement scheme for body area networks, IEEE transactions on information technology in biomedicine a publication of the IEEE Engineering in Medicine and Biology Society, vol. 14, 2010, pp. 60-68. Mana, M., Feham, M., Bensaber, B. A.. SEKEBAN (Secure and Efficient Key Exchange for wireless Body Area Network), Science And Technology, vol. 12, 2009, pp. 45-60. Liu, J., Kwak, K. S.. Towards Security Issues and Solutions in Wireless Body Area Networks, 6th International Conference on Networked Computing (INC 2010),2010, pp. 1-4, doi: 10.1109/ICUFN.2010.5547221. Poon, C. C. Y., Zhang, Y. T., Bao, S.-D.. A novel biometrics method to secure wireless body area sensor networks for telemedicine and m-health, Communications Magazine IEEE, IEEE, vol. 44, 2006, pp. 73-81, doi: 10.1109/MCOM.2006.1632652. William, C., Tan, C. C., Wang, H.. Body Sensor Network Security : An Identity-Based Cryptography Approach, Proc. ACM Conference on Wireless Network Security (WiSec 08), ACM Press, 2008, pp. 148Â ­153, doi: 10.1145/1352533.1352557. Sharmilee, K. M., Mukesh, R., Damodaram, A., Subbiah Bharathi, V.. Secure WBAN Using Rule- Based IDS With Biometrics And MAC Authentication, 2008 10th IEEE International Conference On EHealth Networking Applications and Services, IEEE, 2008, pp.102-107, doi: 10.1109/HEALTH.2008.4600119.

Cultures Influence on Technology Essay -- Environment Environmental P

Culture's Influence on Technology Culture and technology are in a constantly expanding positive feedback loop. The greatest changes in human culture are almost always the result of a technological innovation. However, a technology capable of a cultural shift can only have come from the culture itself. Without the culture's choice to refine the technology, the practical applications would have been left as only fleeting ideas; technology will only be developed if the culture has some immediate and apparent use for it. Although a culture will develop a technology based on its inherent valence towards a particular application, that culture cannot possibly fathom the ultimate repercussions of its collective decision. The inherent multiplier effect in the feedback loop along with unforeseen applications of the technology will guide the "trajectories of cultural evolution" (Ehrlich 255) in completely unexpected ways. Even though cultures can and do have an effect on their course through history, it is only slight when comp ared to the monstrous effect that their technologies have on them. The nature and importance of this type of self-propagating relationship are described in Paul Ehrlich's book "Human Nature: Genes, Culture, and the Human Prospect." Ehrlich describes his own opinion on human development and feedback loops in the following passage: "It is important to know what shapes the course of history, how that influences the evolution of our natures, and how that in turn feeds back on evolutionary history itself." (Ehrlich 254) The statement briefly describes the general form of the positive feedback loop for human development throughout history. The influences he refers to could be anything from the environment to culture... ...e the resources and could not carry a kiln. They did, however, have an immediate and apparent use for the chariot, which could increase their speed and power by an innumerable factor. Although culture is able to guide the technological innovations that are borne from it, humanity does not seem to have much of a say in its course through history. Each step through time is a result of an infinite amount of steps before it all pushing history towards an unknown end. Even the individual who invents an integral technology is only a very small ripple in a tide of inexorable humanity. Works Cited: Chant, Colin. "Chapter 2:Greece" in "Pre-Industrial Cities and Technology." Routledge Press, 1999. pp. 48-80. Ehrlich,Paul R. "Ch. 11: Gods, Dive-Bombers, and Bureaucracy" in "Human Natures: Genes, Cultures, and the Human Prospect." Island Press, 2000. pp. 253-279.

Cars today Essay

Cars today are very common but about 200 years ago they were thought to be just some kind of crazy invention. The origin of the automobile can be traced back to Europe, but it became a major form of transportation in the United States. Most European cars were hand made, and they were very expensive so not that many people could afford to buy the cars. Nicolas Joseph Cugnot a French military engineer built the first steam car or a self propelled vehicle in 1769. One was designed to carry passengers, while the other was a three-wheeled steam tractor for hauling very heavy artillery. In 1801 and 1803 another inventor Richard Trevithick of the United Kingdom demonstrated four-wheeled steam propelled vehicles to carry passengers. Unfortunately, he lacked the money to continue his work in the United States. In 1805 an inventor named Oliver Evans demonstrated a steam operated dredge, which was mounted on a boat. He built the dredge to deepen and clean the Philadelphia waterfront. Evans put wheels on the boat and drove it. This machine weighed about 18 tons. During the 1860’s another American inventor Sylvester H. Roper developed a much smaller steam operated vehicle. This vehicle looked similar to present day vehicles. This attracted a lot of public attention and was even displayed in a circus. Steam cars had many disadvantages. In the beginning, it took a very long time for the fire to heat the boiler. This was bad because you would have to wait around a long time and by the time it heated up you could have walked to the place you wanted to go. The inventors solved that problem, but many others remained. The steam engines had to be small to be practical for cars, so they had to be high pressured engines to produce the required power. However, such engines cost much to build and maintain. Numerous attempts in the United Kingdom to promote the use and development of steam cars failed because of the competition from railroad and stagecoach  companies. Early steam cars damaged roads and sometimes even blew up. They also made a terrible noise, dirtied the air, smoked, and frightened horses (which were the main mode of transportation at the time). In 1865 the Red Flag Law ended further development of automobiles in the United Kingdom for about thirty years. Under this law the few steam cars could not go any faster than four miles an hour in the country, and two miles per hour in town. Also to warn of its approach, a signalman had to walk ahead of the vehicle, by swinging a red flag by day and red lantern by night. And the steam powered car gradually disappeared. In 1924, the Stanley brother’s (the brothers who made the famous Stanley Steamer Company) company one of the last steam car manufacturers went bankrupt. The electric car was first invented around 1891. William Morrison built the first successful American electric cars. They were powered by batteries from under. The seat they were quiet and easy to operate thus they quickly became popular. But the batteries limited to how far they could go. Few electric cars could travel faster than twenty miles per hour and the batteries had to be recharged every 50 miles. The gasoline car the automobile as we know it today resulted from the development of the internal combustion engine Jean Joseph Etienne Lenoir a Belgian living in France, patented the first commercially successful internal combustion engine in 1860. It burned coke oven gas(a gas that was usually used to heat ovens) and was noisy and inefficient. He still sold several hundred engines, which powered printing presses, lathes, and water pumps. He also installed one in a crude motorcar. In 1885 Gottlieb Daimler and Karl Benz, two Germans working separately developed the first successful 4 stroke gasoline engine. Their engines led to the development of the engines used in cars today. Many early European manufacturers turned out cars based on Daimler’s and Benz’s work and patents. In 1891 a French company Panhard et Levassor created a basic design  that remained largely unchanged for nearly 100 years. The firm placed a Daimler engine in to the front of the car and used a revolving chain to transfer powers into the rear wheels. Most cars had a front engine and rear wheel drive until the mid 1980’s when the front wheel drive became popular. A French rubber making firm Michelin, introduced the first tires filled with compressed air for use on cars in 1895 Michelin developed such pneumatic tires under license from a British manufacturer of bicycle tires. Many people believe that the automobile became a practical means of transportation because of, first, the invention of the internal combustion engine and, second the development of the pneumatic tire. The birth of the automobile industry occurred in 1885, the year that Dailmer and Benz built their successful gasoline engines, until 1900 Europe led the world in automobile development and production. Many present day European car companies began in the late 1800’s. For example, Peugeot, a French firm started to make automobiles in 1890. Another French company Renault began producing cars in 1898. Fiat of Italy dates from, 1899. France and Germany became the first large production centers. The Duryea brother, Charles E and J Frank, built the first successful gasoline car in the United States. They drove the car on the streets of Springfield, Mass, in the years 1893 and 1894. The brothers founded the Duryea Motor Company, the first U.S firm. The United States took the lead in car making form Europe because it had a larger potential market. In 1910, the United States population was 92 million people, compared, with about 65 million people in Germany, 41 million people in Britain, and 34 million people in France. Americans also enjoyed a higher income, and so more of them could afford to buy cars. The discovery of huge oil fields in eastern Texas in 1901 helped to contribute to the rapid growth of the U.S Auto industry. The discovery caused a sharp drop in the price of gasoline, and plentiful, cheap fuel made cars relatively inexpensive to operate. Another factor aiding the U.S. auto industry was the application of mass-production techniques to the  manufacture of automobiles. Prior to 1900, carmakers had used skilled workers to assemble each automobile, but American manufacturers had been using mass-production techniques since the mid-1800’s to make such products as firearms and farm equipment, and it was inevitable that they would apply this process to car making. Once established, mass production brought the price of U.S. cars down to a level that many people could afford. By the early 1900’s, a buyer in the United States could choose among a variety of cars costing less than $1,000, while elegant European models, most of which were still handcrafted, sold for more than $2,000 in U.S. dollars. Conclusion The history of cars has been through trial and error mostly and now cars are the most used transportation in the world. What at first was thought to be a just a crazy invention but now it is something almost everyone in the world has or uses today. Today the cars that we have pollute the environment around us and many people have noticed that and now the electric cars are making a comeback. We are not sure what the future of cars will be like but we will probably make some kind of car that will be user friendly, safe, reliable, and wont pollute the environment. Personal Response I like cars a lot and I liked doing a research paper on this. I’m surprised that there were so many inventions that were failures had much to do with cars today and that today’s cars were based on these old steam cars that were very bad. I hope to see that the cars in the future will be better than the ones that we have that pollute the environment and also ones that are safer. These problems have been partially solved like using electric cars instead of using gas powered cars. And we have antilock brakes to stop faster but this won’t save you if you drive off a cliff. But in the future I’m positive that we will make some kind of car that doesn’t need tires it will hover above the ground and that way we wont run over small little  animals that are everywhere on the street dead.

Synthesis Essay - Abraham Lincoln. As A Leader, Do You

Synthesis Essay - Abraham Lincoln As a leader, do you feel as though you could unite subordinates, units, organizations, or even a nation? Abraham Lincoln faced the task of reunifying a nation, even during a time of civil war. He was a visionary leader through the war as his actions advocated intellectual stimulation through change management leading to decisions that shaped innovative efforts within the United States Air Force (USAF) today. Additionally, Lincoln was an ethical leader, not for the actions that history books recognize with the freedom of slavery, but more so for the decision to face ethical challenges altering his behaviors through critical thinking. We will look at an example of how he fostered an innovative†¦show more content†¦Lincoln valued this idea and wanted Lowe to brief the War Department. However, the War Department was not receptive. In particular, General Winfield Scott could not understand how this idea would change strategy. General Scott believed it would hinder current operations and waste time. Jarrow (2010) alludes to Lincoln’s frustration and disappointment when Lowe returned with this information. Lincoln’s frustration stemmed from the lack of cognitive flexibility that General Scott was demonstrating. The Thomas N. Barnes Center for Enlisted Education [BCEE] (2017a) highlights that cognitive flexibility â€Å"involves incorporating different thinking strategies and mental frameworks into your planning, decision-making, and day-to-day activities† (pg. 4). Lincoln believed in Lowes idea; therefore, he took it upon himself to go to the War Department and address the matter. A few days later, hot air balloons were scanning the battlefields and relaying messages to ground commanders. Lincoln’s trust in this innovative idea and understanding of change altered the dynamics of war; now aerial reconnaissance guaranteed information to the Union Army concerning the battlefield. 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