Good Health Essay Example for Free

Good Health Essay It is common to hear people talking about the state of their health. Some say they are in good health, while others talk about their ill health or that of others. But what exactly is good heath and how do we know when we are experiencing it? This article takes a look at that aspect of our lives and explains it in simple terms. Good Health When we are enjoying good health, we feel good, we look good with a good health image and everything about our lives seems to be going well with no major upsets. It means we have plenty of energy to do the things we want to do and we feel happy and contented with our ability to do those things. There is no pain or feeling of stiffness in our body and we are able to exercise freely every day if we wish. Often, when we are in good health it is common to be more active and exercise forms part of the days activities. When we are free of pain, we are able to do a lot more and we feel motivated to do a lot more than when we are experiencing pain. So maintaining a good level of health is important to our lives because it means the absence of pain totally or at least for the majority of the time. Promoting Good Health So what can we do to promote good health? There are lots of things we can do and similarly lots of things we should avoid doing. We should make sure we eat a healthy diet, because we are what we eat and when we only put good things into our bodies, those bodies respond by simply being in better health. That includes healthy meals made up of fresh ingredients as well as any healthy snacks we may want to eat during the day. We should exercise and be active every day, getting plenty of fresh air outdoors and sunshine. Fresh air boosts our energy levels while natural daylight and sunshine boosts our mood, makes us feel happier and also boosts our bodies ability to manufacture its own vitamin D. If we live in a city, we should make a point of getting into the countryside as often as possible to get fresher air and avoid all the pollutants that city air generally tends to have. We should try and be as happy as we can be, facing life with a positive, upbeat attitude and try not to let stress into our lives. We should avoid living a sedentary lifestyle and make sure we get up off the chair as often as we can. Avoiding foods that are processed, contain ligh levels of refined sugar and refined white flour as well as those that contain artificial additives. That usually means eating only fresh produce, fresh fruit and vegetables along with lean meat and fish (if we are not vegetarian), nuts, seeds, legumes and some dairy produce, although this should be kept to a minimum. We should also avoid drinking soda and flavored drinks because of the dangerous levels of refined sugar and/or artificial sweeteners and other additives. Alcohol consumption should be moderate and smoking is a totally bad idea. If we can use our common sense and make sure we live as healthily as we can, then we should enjoy a far better level of health. If we can also keep stress levels down and stay happy, our health will reflect our mood and we will have a longer, happier and healthier life.

Cross Layered Approach for Network Selection

Cross Layered Approach for Network Selection A Cross Layered Approach for Network Selection in Heterogeneous Wireless Networks M. Deva Priya, Dr. M. L Valarmathi, D.Prithviraj Abstract: Service delivery in a heterogeneous wireless network environment requires the selection of an optimal access network. Selection of a non-optimal network can result in undesirable effects such as higher costs or poor service experience. Consequently, network selection techniques play a vital role in ensuring quality of service in heterogeneous networks. Network selection in such an environment is influenced by several factors, with different relative importance, the access network selection problem is usually looked at from the aspect of multi-criteria analysis. The proposed mechanism is based on a modified Multi-Criteria Decision Making (MCDM) steps to assist the Mobile Subscriber Stations (MSSs) in selecting the top candidate network dynamically. The performance analysis reveals that this network selection scheme yields a better results in selecting the better network. Keywords: MCDM, Analytic Hierarchy Process (AHP), WiMAX–Wi-Fi Scenario Introduction: The 4th Generation (4G) wireless networks aims at integrating various heterogeneous wireless access networks such as GPRS, 3G, Wi-Fi, WiMAX over an Internet Protocol (IP) backbone. With the integration of different access networks, wider ranges and higher Quality of Service (QoS) can be provided to the users. The next generation wireless networks have been designed to provide support for multimedia services with different traffic characteristics, different QoS guarantees and to satisfy different types of service level agreements (SLAs) for an increasing number of mobile users. The integration of different wireless network technologies is required to provide a â€Å"seamless† interoperability, integration and convergence among the heterogeneous technologies. Several heterogeneous wireless networks that consist of Worldwide Interoperability for Microwave Access (WiMAX) and Wireless Fidelity (Wi-Fi) networks have started to be operated. IEEE 802.16 WiMAX: WiMAX, a broadband wireless technology, developed by the WiMAX Forum [IEEE standard] is based on the 802.16 standard. The main objective is to provide high speed data transfers over the air. It has a frequency range of about 2-11 GHz for Non-Line-of- Sight and 10-66 GHz for Line of Sight. The signal range for Line of Sight and Non Line of Sight are 30 miles and 5 miles respectively. There are two types of WiMAX, say Fixed and Mobile WiMAX. WiMAX supports different types of traffics like Best Effort (BE), Unsolicited Grant Service (UGS), nrtPS (Non- Extended Real-Time Polling Service), rtPS (Extended Real-Time Polling Service) and ertPS (Extended Real-Time Polling Service). It is a technology for next generation with potential applications such as cellular backhaul, hotspot, VoIP mobiles and broadband connection etc. Itis a standard based wireless technology that provides internet access and multimedia services at very high speed to the end user. IEEE 802.11 Wi-Fi: WLAN (or WiFi) is an open-standard technology that enables wireless connectivity between equipments and local area networks. Public access WLAN services are designed to deliver LAN services over short distances. Coverage extends over a 50 to 150 meter radius of the access point. Connection speeds range from 1.6 Mbps, which is comparable to fixed DSL transmission speed, to 11 Mbps [Part 11 -1]. New standards promise to increase speeds to 54 Mbps. Today’s WLANs run in the unlicensed 2.4 GHz and 5 GHz radio spectrums [Part 11 2]. The 2.4 GHz frequency is already crowded—it has been allocated for several purposes besides WLAN service. The 5 GHz spectrum is a much larger bandwidth, providing higher speeds, greater reliability, and better throughput [Part 11 3]. Handover Process: When a Mobile Subscriber Station (MSS) moving in an overlapping area, continuous service must be need so the technique â€Å"HANDOVER† is done. The handover technique is mainly used to redirect the mobile user’s service network from current network to a new network or one base station (BS) to another BS or one access point (AP) to another AP with same technology or among different technologies to reduce the processing delay in the overlapping area. Handover technique has the two types, Horizontal Handover and Vertical Handover. The homogenous wireless network performs horizontal handover, if there are two BSs using the same access technology, in current system called horizontal handover. This type of mechanism use signal strength measurements for surrounding BSs to trigger and to perform the handover decision. In heterogeneous wireless networks, the MSS or BS will be equipped with multiple network interfaces to reach different wireless networks. When an emerging mix of overlapping heterogeneous wireless networks deployed, vertical handover is used among the networks using different access technologies. Handover technique has the four phases: Handover Initiation, System discovery, Handover decision, Handoff execution. Handoff Initiation phase: The handover process was modified by some criteria value like signal strength, link quality etc. System discovery phase: It is used to decide which mobile user discovers its neighbour network and exchanges information about Quality of Service (QOS) offered by these networks. Handover Decision phase: This phase compares the neighbour network QOS and the mobile users QOS with this QOS decision maker makes the decision to which network the mobile user has to direct the connection. Handoff Execution phase: This phase is responsible for establishing the connection and release the connections and as well as the invocation of security service. The scope of our work is mainly in handover decision phase, as mentioned in the decision phase; decision makers must choose the best network from available networks. Multi – Criteria Decision Making: Handover decision problem deals with making selection among limited number of candidate networks from various service providers and technologies with respect to different criteria. Network selection schemes can be categorized in to two kinds: Fuzzy Logic based schemes and multiple criteria decision making (MCDM) based schemes. Three different approaches for the decision of the optimal access network selection are as follows: the network centric, the user centric and the collaborative approaches [Hwang, C. L, Meriem, K]. In network centric approach, the decision for the access network selection is made at the network side with goal to optimize the network operator’s benefit. The majority of network centric approaches are using game theory in order to select the network that will optimize the network operator’s profit. In the user centric approach, the decision is taken at the user terminal based only on the minimization of the user’s cost without considering the n etwork load balancing or other users. The selection of the access network is determined by using utility or cost or profit functions or by applying MCDM methods. The selection of an access network depends on several parameters with different relative importance such as the network and application characteristics, user preferences, service and cost etc., the access network selection problem can be solved by applying different MCDM algorithms. In the collaborative approach, the decision for the access network selection is made at the profits of both users and network operator. Multiple criteria decision making deals with the problem of selecting an alternative from a set of alternatives which are categorized in terms of their attributes. Generally there are two processes in MCDM techniques: (1) Weighting and (2) Ranking. Most popular classical MADM algorithms are SAW, TOPSIS, AHP, and GRA. In Simple Additive Weighting (SAW), overall score of a candidate network is determined by weighting sum of all the attribute values. In Technique for Order Preference by Similarity to Ideal Solution (TOPSIS), the chosen candidate network is one which is closest to ideal solution and farthest from the worst case solution. Analytical hierarchical Process (AHP) decomposes the network selection problem in to several sub-problems and assigns a weight value for each sub-problem. Grey Relational Analysis (GRA) is then used to rank the candidate networks and selects the one with highest ranking. Related Work A novel optimization utility is presented [Pervaiz, Haris, Qiang Ni, and Charilaos C. Zarakovitis] to incorporate the quality-of-service (QoS) dynamics of the available networks along with heterogeneous attributes of each user. The joint network and user selection is modelled by an evolutionary game theoretical approach and replicator dynamics is solved to seek an optimal stable solution by combining both self-control of users’ preferences and self-adjustment of networks’ parameters, our study innovates over related efforts. This paper [Mehbodniya, Abolfazl, Faisal Kaleem, Kang K. Yen, and Fumiyuki Adachi] presents a novel approach for the design and implementation of a multi-criteria vertical handoff decision algorithm for heterogeneous wireless networks based on the fuzzy extension of the Techniques for Order Preference by Similarity to Ideal Solution (TOPSIS) which is used to prioritize all the available networks within the coverage of the mobile user and to achieve seamless mobility while maximizing end-users satisfaction. A network selection mechanism based on two multi attribute decision making (MADM) methods namely multiple analytic hierarchy process (M-AHP) and grey relational analysis (GRA) method is proposed [Lahby, Mohamed, and Abdellah Adib]. The M-AHP is used to weigh each criterion and GRA is used to rank the alternatives. This paper [Rao, K. R., Zoran S. Bojkovic, and Bojan M. Bakmaz] provides a survey on fundamental aspects of network selection process and deals with network selection concept as a perspective approach to the always best connected and served paradigm in heterogeneous wireless environment. A cross-layer architectural framework for network and channel selection in a Heterogeneous Cognitive Wireless Network (HCWN) [Haldar, Kuheli Louha, Chittabrata Ghosh, and Dharma P. Agrawal] is proposed. A novel probabilistic model for channel classification based on its adjacent channels’ occupancy within the spectrum of an operating network is also introduced. Further, a modified Hungarian algorithm is implemented for channel and network selection among secondary users. A two-step vertical handoff decision algorithm [Liu, Chao, Yong Sun, Peng Yang, Zhen Liu, Haijun Zhang, and Xiangming Wen] based on dynamic weight compensation is proposed. It also adopts the filtering mechanism to reduce the system cost and improves the conventional algorithm by dynamic weight compensation and consistency adjustment. A speed-adaptive system discovery scheme [Yang, Peng, Yong Sun, Chao Liu, Wei Li, and Xiangming Wen] before vertical handoff decision, which effectively improves the update rate of the candidate networks set is introduced. Then a vertical handoff decision algorithm based on fuzzy logic with a pre-handoff decision method which reduces unnecessary handoffs, balancing the whole network resources and decreasing the probability of call blocking and dropping. A context-aware service adaptation mechanism [Chang, Jie, and Junde Song] under ubiquitous network relying on user-to-object, space-time interaction patterns which helps perform service adaptation is presented. Similar Users-based Service Adaptation algorithm (SUSA) is proposed, by combining entropy theory and fuzzy Analytic Hierarchy Process algorithm (FAHP). This approach adopts a suitably defined utility function [Pervaiz, Haris, and Qiang Ni], which at the same time takes into account the users importance for the considered attributes and the quality offered for these attributes by the available networks. The dynamics of network selection in cooperative wireless networks is modeled using an evolutionary game theory where an evolutionary equilibrium is sought as a solution to this game. A bandwidth allocation algorithm is proposed [Fei, Wenchao, Hui Tian, and Rongrong Lian] for Constant Bit Rate (CBR) and Variable Bit Rate (VBR) services depending on utility fairness among different networks and the fairness between new arrival and ongoing services. A utility function is introduced whose parameters are determined by the modified multi-state Analytic Hierarchy Process (AHP) which adapts to different load levels according to dynamic thresholds. A novel load balancing algorithm based on analytic hierarchy process (AHP) is proposed [Song, Qingyang, Jianhua Zhuang, and Rui Wen], which helps the heterogeneous WLAN/UMTS network to provide better service to high-priority users without decreasing system revenue. A novel selection policy [Sasaki, Misato, Akira Yamaguchi, Yuichi Imagaki, Kosuke Yamazaki, and Toshinori Suzuki] for a communication system in heterogeneous wireless networks, which applies the Analytic Hierarchy Process (AHP) algorithm by taking into account the mobility of the user terminals is proposed. An intelligent context-aware solution based on advanced decision approaches like fuzzy logic and analytic hierarchy processes that considers both users and services requirements is proposed in [Zekri, Mariem, Badii Jouaber, and Djamal Zeghlache]. REFERENCES: IEEE Std 802.16-2009. IEEE standard for local and metropolitan area networks. Part 16: Air interface for broadband wireless access systems; 2009. Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specification, IEEE 802.11 WG, Aug. 1999. Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specification: High-Speed Physical Layer Extension in the 2.4 GHz Band, IEEE 802.11b WG, Sept. 1999. Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specification: High-Speed Physical Layer in the 5 GHz Band, IEEE 802.11a WG, Sept. 1999. Hwang, C. L., Yoon, K. (1981). Multiple attribute decision making: Methods and applications. In A state of the art survey. New York: Springer. Meriem, K., Brigitte, K., Guy, P. (2008). An overview of vertical handover decision strategies in heterogeneous wireless networks. Elsevier, Journal of Computer, Communication, 37(10). Pervaiz, Haris, Qiang Ni, and Charilaos C. Zarakovitis. User adaptive QoS aware selection method for cooperative heterogeneous wireless systems: A dynamic contextual approach.Future Generation Computer Systems(2014). Mehbodniya, Abolfazl, Faisal Kaleem, Kang K. Yen, and Fumiyuki Adachi. A novel wireless network access selection scheme for heterogeneous multimedia traffic. InConsumer Communications and Networking Conference (CCNC), 2013 IEEE, pp. 485-489. IEEE, 2013. Lahby, Mohamed, and Abdellah Adib. Network selection mechanism by using M-AHP/GRA for heterogeneous networks. InWireless and Mobile Networking Conference (WMNC), 2013 6th Joint IFIP, pp. 1-6. IEEE, 2013. Rao, K. R., Zoran S. Bojkovic, and Bojan M. Bakmaz. Network selection in heterogeneous environment: A step toward always best connected and served. InTelecommunication in Modern Satellite, Cable and Broadcasting Services (TELSIKS), 2013 11th International Conference on, vol. 1, pp. 83-92. IEEE, 2013. Haldar, Kuheli Louha, Chittabrata Ghosh, and Dharma P. Agrawal. Dynamic spectrum access and network selection in heterogeneous cognitive wireless networks.Pervasive and Mobile Computing9, no. 4 (2013): 484-497. Liu, Chao, Yong Sun, Peng Yang, Zhen Liu, Haijun Zhang, and Xiangming Wen. A two-step vertical handoff decision algorithm based on dynamic weight compensation. InCommunications Workshops (ICC), 2013 IEEE International Conference on, pp. 1031-1035. IEEE, 2013. Yang, Peng, Yong Sun, Chao Liu, Wei Li, and Xiangming Wen. A novel fuzzy logic based vertical handoff decision algorithm for heterogeneous wireless networks. InWireless Personal Multimedia Communications (WPMC), 2013 16th International Symposium on, pp. 1-5. IEEE, 2013. Chang, Jie, and Junde Song. Research on Context-Awareness Service Adaptation Mechanism in IMS under Ubiquitous Network. InVehicular Technology Conference (VTC Spring), 2012 IEEE 75th, pp. 1-5. IEEE, 2012. Pervaiz, Haris, and Qiang Ni. User Preferences-Adaptive Dynamic Network Selection Approach in Cooperating Wireless Networks: A Game Theoretic Perspective. InTrust, Security and Privacy in Computing and Communications (TrustCom), 2012 IEEE 11th International Conference on, pp. 1609-1616. IEEE, 2012. Fei, Wenchao, Hui Tian, and Rongrong Lian. Utility-Based Dynamic Multi-Service Bandwidth Allocation in Heterogeneous Wireless Networks. In Vehicular Technology Conference (VTC Spring), 2012 IEEE 75th, pp. 1-5. IEEE, 2012. Song, Qingyang, Jianhua Zhuang, and Rui Wen. Load Balancing in WLAN/UMTS Integrated Systems Using Analytic Hierarchy Process. InRecent Advances in Computer Science and Information Engineering, pp. 457-464. Springer Berlin Heidelberg, 2012. Sasaki, Misato, Akira Yamaguchi, Yuichi Imagaki, Kosuke Yamazaki, and Toshinori Suzuki. Novel Communication System Selection Applying the AHP Algorithm in Heterogeneous Wireless Networks. InWireless Communications and Applications, pp. 241-249. Springer Berlin Heidelberg, 2012. Zekri, Mariem, Badii Jouaber, and Djamal Zeghlache. Context aware vertical handover decision making in heterogeneous wireless networks. InLocal Computer Networks (LCN), 2010 IEEE 35th Conference on, pp. 764-768. IEEE, 2010.

My Personal Teaching Philosophy Education Essay

My Personal Teaching Philosophy Education Essay Teaching. Teaching is a delivery of knowledge and giving impact on the next generation. In terms of teaching, I will discuss my roles as a teacher and a learner, narrate clearly about my teaching styles that I used to and will intend to apply. Relevant examples are given to cover the importance of the effectiveness of my teaching style as well as its downside. My teaching style is dominated by two preeminent styles: all-round flexible and adaptable teacher and big conference teacher. 1 These results are in line with what I have experienced. Currently, I lecture both theoretical and practical medical subjects. In small groups, I teach Problem-Based Learning (PBL) for theoretical subjects and Skills Laboratory as practical one. Whereas in large classes, I assist one of the lectures in Elective Block. As a medical teacher, I maintain my teaching roles as: 1. Motivator Dreams need a helping hand. As a teacher, I feel responsible to motivate learners. I energize students spirit when they fail, guide and coach them in achieving their dreams. Students should be given an understanding that no goals can be achieved without putting any efforts. Conversely, learning is built with frequent exposure and practising.2 2. Mentor As a mentor, I am alert to students aptitude and learning styles. This allows me to nurture their development and heighten their enthusiasm. To do this, I use inspiring quotations to pump out the students mood. Consequently, not only they enjoy the class, but also love the lessons. Quality time, a form of dedication, is highly important for both of us. 3 3. Role model Our words and actions create our own world. This motto keeps me to provide positive reinforcement for students continually. As a role model, I realize that there is a hidden curriculum that I have to nourish in students performance, particularly: attitude, communication skills, and social awareness. I do hope that my words and actions can inspire students to value other peoples lives, including patients lives. Encouraging learners to see all subjects holistically is equally important, thereby they will have a capability in making wise decision as junior doctors. 3 Learning. Based on educational theory, I found out that I am a Reflector and Pragmatist learner.4 This questionnaire enriched my previous perspective as a visual learner. I realize that being a constructivist learner also impacts my teaching methods. When I teach, for instance, I frequently provide examples and illustration, then relate them to my live experiences. 4-6 By sharing my experiences, I hope that learners compare them to their experiences. Classroom Effectiveness. I use various methods of teaching. This helps students to get accustomed to working collaboratively as a clinical team later. I love using dynamic and interactive methods, including: discussions, activities, games, field trip, and role play. When I teach, for instance, I form the class into small groups, present a few questions, then let them brainstorm. I structure my teaching for not more than two hours by imposing recess in the middle. The aim of this is to create an alive and conducive learning atmosphere, either in PBL or small group discussion. With good organization, I set aside my time prior to lectures to adjust materials and sequence appropriate with the time allocation. To facilitate, I provide up-to-date material, innovative teaching aids and media. Instructional technologies that I use include slides, pointer, flipchart, video, e-learning and simulation. I tend to prevent overload information. This is done by emphasizing most frequent cases and compiling similar topics into one module. Several steps that I perform in classroom: 1. Offer students a Pre-test and Learning Styles Survey I use Index of Learning Styles to find out deeply about my students preference and background.7 Over the years, most of the students are visual learners. Hence, it is advisable not to give lectures in one-way teaching method. For instance, I put visual aids like eye-catching pictures, diagrams, or video in class. 2. Define Learning Objectives Learning objectives are important for students to have a broad viewpoint of what knowledge or skills they will accomplish by the end of the class.8,9 I emphasize the importance of understanding the materials along with other subjects as a whole, not only certain chunks of organ systems. 3. Illuminate rules and roles for learners In large group settings, I discuss with students my teaching rules and learning outline at every first session.8,9 Whereas, in small classes, each student is given a chance to take turn in demonstrating the skills and procedures. I also provide them free time and rooms to practise out of class hours. Sometimes, there is an uncertainty in students own motivation. However, I have a belief, the more we restrict learners, the more they do not respect us. Principally, I trust them as an adult learner and let them learn freely without my full supervision or intervention. Students feedback showed that they favor my teaching methods because they feel valued for being treated as colleagues. Their marks and attitudes are generally excellent. Likewise, faculty members have described my teaching as flexible and professional. Students Background. My teaching is mostly based on class size, students background and interests. I had once a student who was always absent and come late. Previously, other stakeholders did not recognize his problems. After asking him in person, I came to know that he could not come to morning class due to consuming certain medicine. Next, I gathered the group which he involves in class. I asked the other students to help him participate in any discussions and project. Though his participation was slight in the first time, I could see a good progress of his passion to finish a degree. Later on, his internship performance was excellent and he graduated. Another case like students unwillingness to be a doctor is also plentiful to find. Being a sensitive teacher to students problems and conditions help me nourish their development and create an enjoyable environment for them to keep going. Downside. One of my biggest struggles in teaching is facing destructive learners, especially those who often fail the whole entire semester. In PBL settings, for instance, such student is more likely to interrupt and not willing to tolerate other learners perspective. Above all, I need to enhance my teaching capacity tremendously over time. To lead younger generations, I have to learn from others and understand the learners. This will allow me to ensure that all graduates are fit into the best practices as medical field is very much related to humans lives.

Hybrid Photopolymerization :: Chemistry

Hybrid photopolymerization has the potential for solving the oxygen inhibition and moisture problem that plagued the free-radical and cationic photopolymerization reactions respectively. The problem, however, with the hybrid system is the deficiency in the fundamental knowledge of the reaction in the system. This project tends to address these deficiencies by studying hybrid systems in order to understand how experimental variables affect oxygen, moisture and alcohol sensitivity. This understanding will be archived by the following objectives; Determine the kinetic rate constants for the hybrid systems. The kinetic rate constant, activation energy and Arrhenius constant of the hybrid systems will be obtained from Raman spectroscopy method. Model oxygen- diffusion-effect in hybrid systems. An oxygen-diffusion-model will be developed incorporating energy balance, specie balance and light attenuation parameters. Reduce oxygen diffusion in hybrid monomer films through formulation and processing variable selections. Hybrid monomer molecule and monomer mixture will be polymerized to obtain the conversion profile; the cure sample will be investigated to obtain the functional group conversion versus depth by Raman spectroscopy and microscopy respectively. The physical properties of the resulting product will be checked in order to determine the least oxygen diffused product. Develop practical hybrid monomer formulations for industrial applications. Hybrid systems that can be replicated on the industrial scale will be formulated. These systems will be suggested based on availability, cost and resulting physical properties displayed as investigated in Objective three. IV. Research Plan A Overview In this study, a series of hybrid systems will be considered; monomers of these systems will have different functionality present, like those in Figure 5. Hybrid monomer molecule, that is, a single monomer molecule with two moieties (such as acrylate and epoxide) and hybrid mixture formulation that will contain separate molecules for each moiety (i.e. acrylate will be mixed with epoxide). The photoinitiator systems for this study will be expanded to include ÃŽ ±-cleavagable free-radical photoinitiator, such as dimethoxyphenylacetophenone (DMPA) shown in Figure 1, and cationic photoinitiator salts as shown in Figure 3. Raman spectroscopy will be used for in-situ investigation of polymerization of samples. Raman microscopy will be used to obtain profiles of functional group conversion at various depths. These methods are based upon a non-destructive Raman scattering technique which provides information about the vibrational and electronic states in a confined system.{{8 Cai,Ying 2006}} The method is particularly well suited for detection of chemical bonds and their changes during reaction. B. Objective #1 Kinetic Study of the Hybrid Systems

Anabolic Steroids Essay -- essays research papers

Anabolic Steroids Anabolic steroids are synthetic coumpounds formulated to be like the male sex hormone testosterone. Many athletes use anabolic steroids male and female alike, such as body builders , weightlifters, baseball players, football players, swimmers, and runners. They do so because they mistakenly believe that they will gain strength and size. In a male testosterone is released by the leydig cells in the testes. The testosterone has two main functions androgenic and anabolic. Androgenic is the development of male sex characteristics. Anabolic is the development of muscle tissue. To treat patients who suffer from a natural lack of testosterone pharmacoligists alter one form of testosterone slightly, increasing th length of time the drug is active. Testosterone was first isolated in 1935, soon forms of testosterone such as dianabol, durabolin, deca-durabolin, and winstrol were produced. One of the main effects of anabolic steroids is to increase the number of red blood cells and muscle tissue without producing much of the androgenic effects of testosterone. There are only four legal uses for steroids treatment for certain forms of cancer, pituatary dwarfism, and serious hormone disturbances. There are two forms of anabolic steroids those taken orally and those injected. The immediate effects of both are mood swings of many different kinds. In one study, physicians Ian Wilson, Arthur Prang, Jr., and Patricio Lara found that four out of five men suffering from dippresion when given a steroid suffered from dillusions. A research team from Great Britian Found that a patient given steroids became dizzy, dissoriented, and incoherent. Physicians William Layman and William Annitto have had a case of a young man who was diagnosed as schizophrenic took steriods to help with his wieghtlifting. After taking these drugs he suffered severe deppresion and anxiety and had trouble sleeping. Most people who use steroids do not have side affects this severe. Steroids make changes in the electroencephalogram (an image of brain ellectrical activity). Researchers believe that these changes are responsible for some of the behavior changes in users of steroids like increased hostility and... ... I read from the researchers that anabolic steroids show few if any effects at all and I read from athletes that there is a very large effect on muscle gain and endurance. I came across only one book though that addressed this issue between researchers and atheletes. The book sayed that The American College of Sports Medicine stated a report on the use and abuse of anabolic steroids. It stated that for many people any benefits of anabolic steroids are small and not worth the health risk. Yet almost all the athletes who use anabolic steroids feel that the steroids had a great effect and that they would not have been successful without them. The big gap between researchers and athletes has caused a big contraversy athletes say one thing and researchers say another. The researchers have found a reason that maybe is the cause that anabolic steroid users see efects that researchers say are not possible they call it the "placebo effect". The placebo effect works by the power of suggestion athletes believe that the steroids will improve there performance so they do. The placebo effect is real the performance is improved and the gains are not imagi

Google Books

Tourism Operations In your own words please share with me your understanding on these concepts. I will be grading on depth of knowledge, practical examples and management techniques of each product or service. Please Use Weekly ADAIR, REPAY and Occupancy% PDF – Performance By Industry Segments For the Week of: February 03, 2013 – February 09, 2013 Forecasting Question: #1 – Your hotel is in Phoenix, Arizona.For the Week of: February 03, 2013 – February 9, you're your Occupancy % is down but your ADAIR and Repay are up. Please share with me in a written response the reason for this variance. In other words why if your occupancy % is down would you ADAIR and Repay be up? If you were the General Manager what would you change or keep the same for next weeks rates and why? Tourist Target Markets – Here is the URL for Hotel Simulator, please review the tourist market segment section for next weeks final.Please copy and paste this URL into your browser to access. Http://www. Heterosexuality. Com/document/o. L . 1 . HTML #2 – A market segment is simply a group of customers who have common requirements for a product or a service. Below you will see four tourist market segments that you would like to attempt to attract to your hotel: 1) Business – Name two out of the top three influences that are present in each of the business traveler's decision making process. Why are these so important to the equines traveler? ) Families – Name the three least influential factors in why a family will choose your Hotel over another. 3) International & Affluent Mature.

Examine the Conditions Essay

Although one could easily isolate several specific variables that aided the parties rise, such as the failure of the GMD (Nationalist Party) or even The May 4th Movement, one must look at it more broadly to understand the bigger picture of the circumstances. When looking at this bigger picture, one can identify many key conditions under the political, social and economic aspects of the circumstances. Political may perhaps be the most abundant area of conditions for this particular analysis, as it contains the most aspects and conditions, and can be analyzed through a sort of timeline or chain of events. For example, one of the aspects prior even to the rivalry between the CCP and the GMD was the weakness of the previous government. Two examples can be seen here, both when the government failed to address the poverty and situation of the peasants (the huge lower class) as well as when the â€Å"Imperial government in China†¦ introduced a series of reforms†¦but they wielded too little political power† (IB Packet, 62). This goes to show the downfall of the previous government, which then lead to the 1911 Revolution. This revolution, also called the â€Å"Revolution of the Double Tenth,† was caused mainly by the scholar’s disappointment in the failed reforms, the â€Å"severe flooding and harvest failure in the south† (IB Packet, 62) and just general revolutionary conspiracy by the army. In 1912, this resulted in Dr. Sun Yatsen’s ruling of the newly created Republic of China. â€Å"On December 25, Dr. Sun was elected the provisional president of the Republic of China† (Leung, 52). The Warlord Era†, in turn, followed this, between 1916-1927. Yuan Shikai became president after Dr. Sun resigned, only to die 4 years later (1912-1916 was his rule), and â€Å"After Yuan died, the nation disintegrated into warlord groups and territories† (Leung, 59). During this time period is when the May Fourth Movement emerged, where 5000 students â€Å"held a huge demonstration against the decision†¦ to accept Japanese control of the former German concessionsâ₠¬ ¦Ã¢â‚¬  (Leung, 65). This movement was a huge success in that gradually, people no longer bought Japanese goods, Cao Rulin resigned, and no Chinese representatives signed the Treaty of Versailles. According to Chinese today’s historians, the movement was a â€Å"turning point between the modern and contemporary history of their country† (Leung, 67). Again during the Warlord Era was the â€Å"First United Front†, during which the GMD and the CCP fought together against the Japanese invader, only to see Chiang Kaishek (leader of GMD) â€Å"order a massacre of thousands of CCP members† (IB Packet, 64) in 1927. Manchuria, being a Chinese region, was full of agricultural products, opportunities and even mineral/natural resources. Ergo, Japan wanted to capture it, and this conflict led to a larger scale war, and by the end, â€Å"The war with Japan had left China exhausted and weak† (Leung, 99). Thus, this gave the possibility to the CCP (because they took more advantage of it) to rise and take power over the GMD. Thus, the social and economic aspects of China in the time period also had a rather large effect on China becoming ruled by a single party rule governed by Mao. In conclusion, political, social and economic conditions in China were altogether very responsible for the rise of the CCP. From the civil war (political) to the runaway inflation (economic) and even to the bad relations between the GMD and scholars (social), all these aspects make up what was to become Mao Zedong’s rule. Failures, mainly from the part of the GMD, also helped the CCP rise, such as the non-acknowledgment of the peasantry or even the failure to wipe out the CCP during the White Terror.