Helping Parents and Caregivers Fight Chilhood Obesity Essay Example for Free

dowery P atomic number 18nts and Caregivers Fight Chilhood Obesity EssayHelping Parents and Caregivers in the Fight Against Childhood Obesity Young children acquire their knowledge through direct instruction, modeling, and experiences in spite of appearance their environment (Lanigan, 2010, p. 369). Children who are obese are known to use up lower self-esteem, and a higher jeopardize of becoming drinkers, smokers, and/or socially isolated as they mature. Health concerns such as Cardiovascular complaint Gall Bladder problems Hypertension and Sleep Apnea have all been associated with childhood obesity (Robinson Geier Rizzolo Sedrak, 2011). Teaching parcel of land control, implementing a vigorous equilibrise diet, and adding in daily physical activities can protagonist parents and caregivers in the liberate on against childhood obesity. Portion control is something that has to be developed from within a person. By introducing and practicing the use of healthy eating hab its early in life, parents and caregivers are increasing the opportunities for a child to learn behaviors that can helper them to develop a healthy life style.This type of life style can in turn increase the childs chances of reversing or even preventing obesity. Teaching children to recognize what it feels like in their bodies when they are hungry or what could be called their hunger signals, season encouraging them to eat their food more slowly, and persuading them to point eating when they feel they have had enough, even though they may still have food left(a) over, are all ways of promoting healthy eating habits in children. The practice and observation of these skills will proceeds children in their journey to a healthy life. Creating a healthy balanced diet can be a challenge for families. The convenience of the fast food industry has increased the challenge for families. Most families have parents or caregivers who work long hours and have little down time, causing them to grab dinner verses preparing it as was once the norm.In a balanced diet, the recommendation of carbohydrates is 45% to 50% of the total daily calories, while fat intake is at 30% to 35% (Philippas Lo, 2005). Focusing on the right fats and carbs are of fundamental importance. Making choices with fruits, vegetables, legumes, and healthier poly- andmonounsaturated fats, verses saturated fats and refined carbohydrates like white bread, refined sugar, soft drinks, cakes and candies, can dramatically assist in the battle against childhood obesity. While portion control and a healthy balanced diet are essential in the bit against childhood obesity, the benefits of physical activity should not be ignored. transaction is a key component in the treatment and prevention of obesity in children (Robinson Geier Rizzolo Sedrak, 2011).Exercise will assist in weight loss as well as improve metabolic risk factors such as hypertension, and has been known to have led to the lowering of blood pre ssure, along with cut back in depression, anxiety, and improvement of self-esteem (Robinson Geier Rizzolo Sedrak, 2011). The obesity epidemic is being blamed for the rise in salutary diseases and disorders (Robinson Geier Rizzolo Sedrak, 2011). With this information of the multiple health concerns that have been associated with childhood obesity, parents and caregivers must be armed with education and resources to fight against this disease. Teaching portion control, implementing a healthy balanced diet, and adding in daily physical activities can help parents and caregivers in the fight against the disease known as childhood obesity.

The concept and definition of leisure

The concept and explanation of voidThe word unfilled is normally attributed to an exclusives free time and what they choose to do during that time. Every individual at some stage in their life ordain participate in some formula of unemployed, whether it be shopping, travelling, playing sport or unless relaxing. Participation must be by superior in order to be considered blank. Throughout this essay I am going to identify and develop the different types of empty and why individuals participate with reference to relevant academic literature.Leisure as a concept is non new, throughout history thither has always been examples of vacant. If you think back to the time of quaint Rome, people enjoyed watching and in some cases taking part in the activities held within the Coliseum. Furthermore as you move through history the examples continue Jousting and banquets in the middle ages, all the way up to what we narrow as leisure activities at present, shopping, participating i n sport etc (Pearson, 2008). Whats important to point out is the change in perception of what leisure actually is now, compared to what it was before. During the late eighteenth and nineteenth century Britain went through a great economic change. Otherwise known as the industrial revolution, this period changed what we would define leisure as today (Bull et al, 2003). For so many people, their nature of worked changed drastically, both in terms of what they did and where. This change enabled hearty class to be born, and with it increased wealth. This new found wealth enabled new technologies which in turn would allow new forms of leisure (2003).Trying to define leisure is a lot difficult this is due to the many different forms leisure poop take. Bull, Hoose and Weed, (2003) propose four approaches to define leisure. These are leisure as time, leisure as an activity, quality of leisure and personal status (p32). Most people work long stressful hours during the day, leisure time is often dictated by the time we are left with after working and earning money. However necessities such as sleeping, eating and personal hygiene all eat into what we define as leisure time. Under the leisure as time approach, work and leisure keister be perceived as being in opposition, with one (usually work) limiting the former(a) (p33). When it comes to activity based approaches, as the name suggests, this approach sees leisure as engaging in activities that one would do in their free time, such as shopping, playing inexpert sport etc. The quality of leisure and personal attitude go pay in hand with the previous approaches. If the participant is having fun their quality of leisure is modify, the opposite fundament be said if their attitude is negative. Its important when looking at why people participate in leisure, that these 4 approaches are interpreted into account.As mentioned above, leisure and work are often seen to be in opposition with each other however that is not always the case. More and more businesses are seeing the benefits leisure rear arrive at on staff productivity and happiness. This year alone an estimated 1.67 billion was spent on leisure activities for staff at work (Groom, 2010). That equates to 20% of all spending on expenses last year. This view is reinforced by companies partnering with leisure based businesses such as activity day planners and health clubs to offer staff a range of benefits and discounts in order to increase their leisure quality. In addition to investing in leisure for staff, businesses as a whole take part in leisure excessively. Sponsorship for leisure events was estimated to be approximately $45.2 billion last year (IEG Global Sponsorship Expenditure Reports, Cited in Sponsormap, 2009).The main concept to explore when asking why people participate in leisure is what motivates them to do so. Under ideal circumstances, the benefits from participating in leisure are numerous. As it covers such a broad range of activities, leisure allows an individual to do what they want. Linda Nazareth (Cited in Alboher,2008) provides an example of a woman who works a stressful 6 day week. By incorporating a small amount of leisure into her routine, she felt happier at work, and felt her interactions with others outside work also greatly improved. Further to this studies show that physical based leisure, such as exercise or recreational sport bring on a positive effect on ones wellbeing. This is due to a combination of mental factors as well as raised endorphin levels (The Reality of the Runners High, 2008).However, an individuals leisure evoke often be squeeze by numerous external factors such as age, race, income and gender. William R. Burch, Jr. (2009) highlights how social class (income) has an effect on what activities an individual can take part in. Activities such as going sailing, although not exclusive to top(prenominal) class, is more likely to be available to than someone who is lower class. In addition an individuals gender can also affect their free time. Roberts (2010) cites a recent international survey that shows men have half(prenominal) an hour more leisure time every day than women. In addition, geography also plays a key role. In the same study, figures showed that the half an hour advantage men have over women in the UK, compared to 38 minutes in the US, 33 in France, 50 in Belgium, 22 in Germany and 80 in Italy.Persons surroundings similarly can limit their participation in leisure. One could argue someone who is retired will have the most leisure time out of all socio economic groups. This however is not always the case. Just as before, location has a major role on leisure, not just internationally but also locally. As Bull et al (2003) describes behavioral norms and expectations of what someone who is retired is able to do, can in fact limit what it is available to them. Further to this, social expectation can encourage social isolation and disengagement. All of these things contribute to having a negative effect on an individuals participation. Government funding can also have an effect. If the facilities arent available, what an individual may want to do as activity based leisure may not be possible. In addition if pricing of facilities is too high, what an individual has access to will be limited. On the flip side, if funding is there the quality of leisure available to individuals is greatly improved and in general so is participation. This highlights how at least in terms of activity based leisure, opportunities can sometimes be better for some more than others.As shown, although leisure is subjective, external factors often have a role to play in the choices an individual makes. When answering why people participate in leisure, the answer is obvious. As William H. Davies said What is this life if, full of care, we have no time to stand and inspect? (Cited in, Khurana 2009). Life is too short to have nothing but worry. People participate in leisure to escape from the hectic lives they have to live. Although many extrinsic factors can have an effect on leisure, there is no denying the benefits of even a little a day.

The Use Of Enzymes In Textile Industry Biology Essay

The Use Of Enzymes In Textile pains Biology EssayEnzymes be bio-catalysts and are use of goods and servicesd in several industrial processes since nineteenth century. Its use in textile industry is an example of industrial or white revolution. Enzymes, due to their non-toxic and eco-friendly characteristics, have gained great industrys in textile industry. Not only they are highly specific, efficient and work low moderate conditions but also they help reduce process times, save energy and water, improve quality of crossing and reduce pollution. As a result they are rapidly gaining global recognition as key requirement for textile industry.Commercially enzymes can be obtained from three primary sources, animal tissues, plants and microbes. However, these naturally occurring enzymes are not produced in sufficient quantities to be readily use in industrial applications. Hence, microbial strains producing the coveted enzyme are cultured and optimised i.e. fermentation, to ob tain enzymes in sufficient quantities for their commercial use in textile industry. The enzymes used in the textile industry are amylases, cellulases, pectinases, lipases, catalases, proteases, xylanases and so on and are mainly used for processing of the textiles i.e. propaedeutic and finishing of the goods. Some of the applications include removing of stiffen, bleaching, degrading lignin, fading of jean and non-denim, removal of peroxidises, finishing of wool, decolouration of dyestuff, bio-scouring, bio-polishing, wool finishing, etc. (Shenai, 1990 Nalankilli, 1998 Barrett et al., 2003Cavaco and Gubitz, 2003 Chelikani et al., 2004).CLASSIFICATION AND PROPERTIES OF ENZYMES USED IN TEXTILE intentnessEnzymes are very specific toward catalysing the substrate. Hence these are classified on the basis of their catalytic functions in six broad categoriesEC1 Oxidoreductases catalyze oxidation and or reduction reactionsEC2 Transferases catalyze transfer of a functional groupEC3 Hydrol ases catalyze the hydrolysis of various bondsEC4 Lyases catalyse sectionalization of various bonds by means other than hydrolysis and oxidationEC5 isomerases catalyse isomerisation changes within a atomic number 53 moleculeEC6 Ligases joining of two molecules with formation of covalent bondsProperties of enzymes exploited for use in industrial applicationAcceleration of the reaction rates by lowering the activation energy of the reaction.Operating optimally infra milder conditions of temperature, pH and atmospheric pressure.Alternative for polluting, toxic and carcinogenic chemicalsHigh specificity towards substrate makes easy to control their legal actionBiodegradable and do not produce toxic wastes.Due to their high efficiency, specificity, property of working under milder conditions and biodegradability enzymes are well suited for various industrial applications.ROLE FO ENZYMES IN TEXTILE INDUSTRYUse of enzymes in various textile processing processes has greatly benefited te xtile industry with respect to twain environmental impact and quality of product. There are 7000 known enzymes, but only 75 are commercially used in textile industry (Quandt and Kuhl, 2001) and most of them belong to hydolases and oxidoreductases families. The hydrolases family includes amylases, cellulases, pectinases, proteases, catalases and lipases/estarases and oxidoreductase family include laccase, peroxidises.AMYLASESAmylases actson starch molecules and hydrolyses to snuff it dextrin and small polymers of glucose units (Windish and Mhatre, 1965). These are classified according to the sugars they produced i.e. -amylases and -amylases. -Amylases being produced from filamentous fungi and bacteria are broadly speaking used in industries (Pandey et al., 2000). This enzymes are stable over wide range of pH from 4-11 and optimal military action is re after-hoursd to the growth conditions of the source microorganisms (Vihinen and Mantsala, 1989). In general, -Amylases shows high specificity towards starch followed by amylase, amylopectine, cyclodextrin, glycogen and maltotriose (Vihinen and Mantsala, 1989).1.1 Textile Desizing size of it is an adhesive substance used to coat the wrapping threads used in weaving of the cloths do from cotton or blend. Starch and its derivatives are broadly used to size fabrics due to their easy availability, sexual intercourse low cost and excellent film forming capacity (Feitkenhauer et al., 2003). Amylases are used to remove this sizing square and prepare the fabric ready for dyeing and finishing (Cavaco-Paulo et al., 2008). Earlier to the discovery of amylases, desizing was done by chemical treatment of fabric with acid, alkali or oxidising agents at high temperature. But, this technique was inefficient in removing the starch which resulted in imperfections in dyeing and also degradation of cotton fibre. Amylases are commercially used for desizing fabric due to its efficiency and specificity and its effectiveness in co mpletely removing the size without affecting the fabric (Cegarra, 1996 Etters and Annis, 1998). Starch is outside during washing in the form of water soluble dextrin and thus reduces the discharge of chemical waste into the environment.2.0 CELLULASESCellulases are the hydrolytic enzymes that catalyses the breakdown of cellulose to smaller oligosaccharides and finally to glucose. These enzymes are commonly produced by soil-dwelling fungi and bacteria such as Penicillium, Trichoderma and Fusarium (Verma et al., 2007) and shows optimal activity in temperature range from 30C-60C. The applicationof cellulases in the textile industry begin in late nineteenth century with denim finishing. It alone accounts for 14% of the worlds industrial enzyme market (Nierstrasz and Warmoeskerken, 2003).2.1 DENIM FINISHING jean is high grade cotton and its washing is done in order to give a have on look e.g. stonewashing of denim jeans, in which the denim fabric id faded using sodium hypochlorite or o ne thousand permanganate are used as pumice stones (Pedersen and Schneider, 1998) it resulted in damage to the fabric and machine. Introduction of cellulases have change magnitude the productivity without affecting garment or the machine. Cellulases hydrolyses the exposed surface of dyed (indigo) fabric leaving the interiors intact, uncomplete hydrolyses of the surface results in removal of dye and leaves a light area. Most of the cellulases are produced from fungi, but cellulases from bacterial and actinomycetes origin are now studied with regard to its use in bio-stoning of denim. Cellulases used for washing of the denim can be further classified on the basis of optimal pH required for its maximal efficiency as neutral cellulases operating at pH 6-8 and acidic cellulases acting at pH 4.5-6.2.2 BIO-FINISHINGWashing of cotton and other natural and man-made cellulosic fabrics, besides denim, such as linen, hemp, rayon and viscose by enzymatic activity of cellulases to improve fin al appearance is done by bio-finishing or bio-polishing processes (Videbaek and Andersen, 1993). The process helps in preventing the formation of ball of fuzz called pill on the surface of the garment, this formation usually results in unattractive, winding fabric appearance. Cellulases, hydrolyses the microfibrils protruding from the surface of the fabric which tends to break off leaving a smoother surface.Bio-finishing whitethorn be an optional step for upgrading cotton fibrics, but is very important step in streak of pilling or fibrillation during finishing of lyocell fabrics (Cavaco-paulo et al., 2008). Similarly, Carrillo et al. (2003) stated that cellulases can be used for viscose type regenerated celloloses like viscose and modal. Yachmenev et al. (2002) showed the use of ultrasound as an efficient way to improve the enzymatic activity in bioprocessing of cotton.

Developing and Interesting Interview

Developing and Interesting Interview news media and Society (9303) interchange questions for the week two tutorialsFor Peter Clarkes chapter on querying from Australian Journalism Today, the questions areWhat is it, according to Clarke, that makes the set piece interview of a human existences figure (often a politician) so dull and arid today? Clarke (2012) relays the means in which OBrien asks a question and states that it is difficult to perceive on the button what is being asked due to the wording, as healthful as known as the hollow bound. It has all the surface attributes of an authentic process of inquiry and revelation but, upon analysis, its clear that very little in categoryation flows from the verbal content of the interview to the waiting minds of the viewing citizens. They have slim pickings in the form of generalised platitudes. The political interview between Gillard and OBrien seems so stock-still on both sides that it is almost useless. By asking such embell ished questions with a lot of room for interpretation (use of metaphors, etc.) it has allowed Gillard, who is already media trained, to give a cautiously crafted response which she can use to her advantage. In other talking to, the journalist has coiffe the interviewee in a position of power which is not advised (Clarke, 2012, pp. 57-76).What are the main ways that interviewers can overcome this problem? Describe at least two of them as discussed in the chapter. Clarke (2012) explains that Carletons question is kicked sour with a metaphor, but the image it conjured went swiftly to the nub of the event that had deep occurred and by implication, the intense emotions and fracturing of Labor traditions surrounding that event (Clarke, 2012, p. 59).Interviewers can believe the ratio of words they are using to question their subjects versus the amount of words being used to answer their questions. To achieve a more match interview transaction the interviewer could alter their techniq ue, if necessary, to improve the unwrapcomes of an interview.Additionally, interviewers can ask short, guardedly crafted questions with a stronger interrogative thrust and fewer distractions for the wary interviewee to seize upon if scheme is their main intention in the style of Leigh Sales (Clarke, 2012, p. 59). By holding it simple and not asking double or triple barrelled questions, you are making it more difficult for the interviewee to stray from the answer you seek. rat you think of an interview you have seen or read or hear recently that you thought was trenchant and interesting? Describe what it was that made it effective and interesting for you.Recently I watched an interview between Andrew Denton and Hugh Jackman on exuberant Rope. It was interesting because Jackman is notoriously difficult to interview, since he has been interviewed many times end-to-end his career. Understandably, it would become a bit monotonous. However, Denton managed to seduce the actor with his charm and passing(a) interview technique. The interview escalated from conversational to confessional and Jackman recounted the moment he wet his knee pants on stage. Dentons technique was clearly effective, as he extracted ad hominem and somewhat embarrassing details from his interviewee (Denton, 2004).Discussion questions for the week six tutorialsFor the chapter from Australian Journalism Today about covering traumatic events, the questions areThe chapter discusses the footing that can be caused by careless or indifferent coverage of traumatic events. What specifically is Kimina Lyall talking about? Lyall speaks of common practices that can exasperate powerlessness, such as camping outside a survivors home despite being asked to leave, or even filming a potential interview subject declining a request for an interview (Lyall, 2012, p. 35). Teichroeb (2009) states that he thinks its insulting to a victim to go in and upshot their story and leave and put it in the newspape r without having that relationship without them being able to say this is OK and this is not (as cited in Lyall, 2012, p. 36). The author also says to avoid the temptation to slot storylines into a series of pre-constructed narratives, such as the hero story or the constructed villain. This type of unthinking, formulaic reporting lone(prenominal) serves to frustrate and compound survivors grief as well as reinforce the community perception (as cited in Lyall, 2012, p. 36). Lyall (2012) mentions that journalists can be tempted into taking short cuts that dispense with basic techniques, including checking facts and verifying events with other concourse present (Lyall, 2012, p. 37).What is post-traumatic filter turnover and to what extent does it affect journalists? Post-traumatic stress disorder (posttraumatic stress disorder) is a psychiatric disorder that can affect someone who has witnessed a traumatic event, for example, through military service, surviving a natural disaster, or covering a school shooting. Some individuals will have stress reactions that do not pass with time and their symptoms can worsen. Individuals who suffer from PTSD often recall the experience through nightmares and flashbacks, have trouble sleeping, and timbre isolated or estranged, and these symptoms can be extreme enough to importantly impact the persons daily life. It can affect journalists by making them psychologically homeless along with preventing them from returning to serve because it is so severe (Lyall, 2012, p. 30).What are the main components of self-care for journalists?Lyall (2012) suggests creating a buffer between the work experience and the home experience by taking time out alone at the end of the as pledgement, through to exercise or entrance in family life outside of the working day (Lyall, 2012, p. 38). The first ill-use is recognising the risks. Journalists should expect the possibility of experiencing strong feelings themselves, and recognise this is n ot a sign of professional weakness but a normal human reaction. ingrained resilience advice includes getting enough food, water, sleep and exercise and reducing the credit on alcohol during a distressing assignment. During the assignment, intense emotions should be expected, admit and, if possible, shared honestly with colleagues either at the scene or in the newsroom. Journalists should not be afraid to seek professional help if symptoms tolerate (Lyall, 2012, p. 38).Reference ListClarke, P. (2012). The interview a hollow dance facial expression for new moves? In M. Ricketson (Eds.), Australian Journalism Today (pp. 57-77). South Yarra, Australia Palgrave Macmillan.Denton, A. (Presenter). (2004, whitethorn 10). Interview with Hugh Jackman Television broadcast. In Enough Rope with Andrew Denton. Sydney, Australia ABC.Lyall, K. (2012). Covering traumatic events without traumatising yourself or others. In M. Ricketson (Eds.), Australian Journalism Today (pp. 28-44). South Yarra, Australia Palgrave Macmillan.Name Leanne DuckStudent ID u3065597

We Can Actually Use First Aid

We Can Actually Use head start AidWe dealnot predict anyaffair, we evoke never tell when an shot go away occur, but in that respect is one thing for sure, we can prevent added speck or bruise if we make love how to demonstrate foremost embolden. Last January 15, 2013, we endure our guest talker in the class to discuss and help us with the basic discernledge or so original gear aid. The innocent discussion helped us learn the importance of first aid and how we can engagement it in the approaching.Saving a someones tone is the most valuable thing wherefore we should learn first aid. When in that respect is an accident and there is no one there to help out the dupe, you can f be the first aid to alleviate the suffering and prevent the victim from having weighty damages when treatment or help is not yet present. kick take away aid also serves as the bridge that fills the gap between the vomit up and the physician so we should be the middle man who leave behin d just that the victim would feel less in twinge and would check his/her specialize by observing the blood pressure, breathing, pulse rate and temperature. Ein truth consequence or every minute counts aft(prenominal) the victim take over encountered the accident thats why he/she should be attended in the speedy time as possible.We can actually use first aid in many simple ways and by performing the first aid properly. And as medical biology students and maybe future doctors, it is very useful for us to know the basics of first aid because we can definitely use it in case of emergencies to prey a victim some medical attention. So for us to suffice how we can use first aid, our guest speaker and our prof site us a power wherein a boy was hurt in his ramification after he fell on the ground when hes stressful to change the light bulb. Given that we have some materials like handkerchief, cardboard, pattern, belt, strips of material and masking tape at first we usurpt in truth know how we should start and how we should do it but then we properly managed it. We act to wrap the handkerchief around our class catch progress but its length was a bit short so we decided to use the belt and exchange the handkerchief then we put some bandage around his tree branch and use the ruler and the cardboard to straight his arm and whoala we actually performed a first aid. Our group didnt win but our guest praised us because our group was resourceful to use a belt instead of the handkerchief. We dont have to always bring our first aid equip because we can always be resourceful and use things around us to save a life.Life is very important to people and there is no rule saying that we should not help people unspoilt? Even if we dont know the person suffering from an impairment or an accident we can always give a service hand to that person and give some first aid to give a temporary hand care. Just like what the Good Samaritan did to the Levi? who was vanqui sh in the road. Maybe if you help a victim in acquire you will be his/her savior for saving his life from near destruction witness or maybe youll be the next Good Samaritan. If you know the true meaning and the importance of first aid you can definitely use it and save a persons life.Our English professor asked us to write an essay about our experiences during the first aid chide and the activity of using household items to give first aid to the injured as instructed by our professor. premier(prenominal) aid is a must for us students of aesculapian Biology because it is related to our course and our future profession as Medical doctors. And because this essay is a requirement to pass this subject, we are make to do it.The first thing that we did is the first aid mouth. Our professor invited a guest speaker to talk about first aid. This call down covers the comment of first aid, its objectives, dos and donts of doing first aid, some tricks in saving ones life and the ABCs o f life. This lecture can enumerate in handy when someone needs help. Honestly, the lecture is informative but also boring. The speakers approach in lecturing was so boring that I felt that everyone in the classroom is half dead charm listening to the speaker. Good thing that I managed to stay awake while listening to the lecture.After our lecture, our professor challenges us to put our skills to the test. He first asked one of the members from each group to be the main actor/actress. I doubt that statement because I knew that this person will be subjected to slight discomfort and probably humiliation while doing the activity. Thinking that way, I decided that I dont urgency to do it. But my fellow members forced me to volunteer. Someone has to do it good? So I ended up doing it.After that, our professor gave this posture Supposedly I fell down from the chair while ever-changing the light bulb with my left-hand(a) arm first. I winced in pain and my left arm maybe broken. So usi ng the materials provided, my fellow members will give me first aid treatment for 10 minutes. And we started this chaos. They wrapped my left arm with bandage straighten my left arm with a ruler and a stick, serving as a support for it to immobilize my arm. indeed they use a leather belt that hangs from my neck to the injured arm as a support. I felt like I was a dress-up doll and twisted in awkward positions while giving me the first aid treatment. So much for top-notch care and gentle movements. It was, for me, an awkward moment. Then, the display of the output comes. The four main actors goes in front of the class and shows off what they have done. As I look to the other people, one things for sure, we all look like fools. Then the guest speaker judged the output. But in the end, we lost. But we still gain experience and a few laughs while doing the activity.In life we really not know what are going to be travel bying. Because in life we cannot predict the future only one Man can, what if we are riding in a plane then suddenly a one passenger experience difficulty in breathing or something? You are in a park with your brother or sister then a nipper fell on the monkey bar and broke his or her arm? What are you going to do? These are the example of the many steads why first aid is important and why should we learn how to practice it.Weve lectured about first Aid in our class and in that lecture we versed why First Aid is important in our daily living. First aid is define as the immediate and temporary aid provided to a sick or injured person until medical treatment can be provided. First Aid is important in several reasons it serves us the temporary treatment to a certain victim. It is done to make the fact lighter or to help the victim feel less pain and suffering by knowing his or her vital signs to his or her instant First aid also helps to prevent further danger to come and risks of the life span of the victim and more importantly with a simple hand you will learn how to save someone life.As Medical Biology students and a soon to be doctors we should know how to practice first aid. On the activity weve done there is a certain situation and we should practice first aid in one of our group mates with the materials we have assigned to brinkg like ruler, piece of framework, masking tape and scissors. We have no idea what we are doing we just wrap the piece of cloth with a ruler with my classmates arm because in the situation the person fell from the chair so we think that he or she might broke his arm. The other groups did the same technique. I think what if this happen in real life?And we are in our white undifferentiated there is a situation that needs first aid it is given that we should have the experience doing it but what if we are not? So this explains why we should learn how to practice first aid, from the simple CPR to save a drowning friend to the heavy situations of people meeting accidents having fractured bones . It can be an wages to us Pre Med students to have the knowledge and the strong top executive to learn how to practice first aid and use it to help other people.Having to contain the ability of helping people in a crucial danger situations, service them reduce their suffering and helping save someones life this thoughts make First Aid important so we should practice it because in this world we are living we are clueless of what bad or good things will happen, we all know that Life really are full of challenging surprises.

Reflective Skills Essay

Reflective Skills as dictateReflective Skills EssayDo passel develop pro learnings exclusively at their drop deadplace? I would be make-up ab issue the skills and acquaintance I corroborate gained in the last 10 15 years. You dont fill to locomote in an organization to gain skills and noesis. Even while at home you preempt learn something that might help you at your workplace. sometimes people dont realize that they have developed skills that can be utilize effectively in their workplace. In this essay I am spillage explain the skills and knowledge I have developed through work, raising and another(prenominal) minuteivities how this could help me in a workplace.First Im going to give tongue to about the skills I have developed from my hobbies and day to day activities. Its very surprising to know how much you can learn while having fun. after(prenominal) that Im going to talk about the skills I am developing academic all(prenominal)y at present.Playing cricke t is mavin of my biggest hobbies and as a cricketer I am a wicket keeper. Being a wicket keeper, my spot isnt just to collect missed deliveries and score runs but is overly to instigate and inspire the police squad every minute so that my team members dont pee sluggish in their respective roles and perform towards success. Once familiarized with the team I can act as a good motivator. This skill can not only help me to motivate other employees in my workplace but it also gives me the ability to work with little or no supervision as I can motivate myself to work towards achieving my goal. In todays workplace, team leaders have to encourage and motivate their teams in order to perform well. A strong motivator can act as the backbone of the team. This skill is one of the essentials demand to be a good leader in any kind of workplace.Employers are also lifeing out for people with originative minds. By nature I am a very fanciful soul. I look at things in a very different pro spective. normally I would publication an original idea and expand upon it using my creativity, which can also sometimes lead to something else completely new. It has to do with thinking beyond the obvious. This is the secret to how the minds of creative people work. For instance, with music, the first type of genre was baroque music contend during the 1600s and from that evolved a lot different genres. In todays date we have more than than 400 music genres. This was possible only beca work of some creative minds who theme of doing things differently. Employers want their employees to have the ability to solve problems using their creativity and cogitate skills. An innovative problem solver can take an organization, irrespective from which industry, to the succeeding(a) level. unmatched of my other favorite hobbies is travelling and I would often contract myself in a situation of convincing some friends to come along. Usually I would succeed 9 out of 10 times, as they say I endlessly manage to get things my way. This can also be called the art of diplomacy. Now having employees with the ability to persuade people can be very useful for an organization as they can face situations in which they might have to persuade a client or a trade union to reach an agreement. This skill can also be related to the sales ability of an employee. Travelling has also shown me that I can be a responsible psyche as I would grade all the plans in detail, do the math for the expenses to be occurred, make sure every one is having a good trip and everything else is under control.One of the canonical yet most important skills is to fleet effectively with other people. Everyone has been naturally practicing this skill since they were able to speak, listen or write, yet communication gap between the employers and employees still seems to be one of the major concerns in many organizations. In order to have a productive workplace, they should always be effective communicatio n between the employee and employer. Successful communication is little in business. I have developed good communication skills over the time. I can easily converse and make the other somebody understand and communicate with me either verbally or written. Along with this my auditory sense skills are good as I listen to the other person patiently and then engage in communication with what that other person was speaking about. I can improve upon this skill by practicing more.A few other basic skills that I have acquired are figure and numeracy. Schools in India never allowed the use of computing devices. I always wondered why we couldnt use calculators while schools across the world were allowed, but now when I look back, I realize why. Doing basic calculations mentally, without the use of a calculator has helped me channelise my numeracy skill. Each day, people use simple math skills in their jobs and in-person live in order to complete projects and other job duties. A recent l arge scale survey in the UK showed that people who have better literacy and numeracy skills tend to have better wages and come to work more often. One way of improving this skill is by avoiding the calculator when whenever a need of calculation arises.My use up in IT has enabled me to carry out all the basic computing tasks at ease. I always had an interest for it and I utilized everything taught at school like Web designing, HTML, QBASIC, SQL and a lot more. Almost every job now requires some basic understanding of computer hardware and software, particularly word processing, spreadsheets, and email. Lack of IT knowledge can affect the performance and future prospects of an employee.While I did my information in India, our knowledge gained was always tested in the unseen testing format. After joining university I was exposed to new tasks like conducting shows and writing report. When I was first assigned to conduct a presentment I was a bit nervous as I had never through wit h(p) this before in front of people I dint know. Later I was advised to practice in front of a mirror and it did work. My act presentation went better than the first. Being able to conduct a presentation with confidence is a very important skill to develop especially in the field of HR. One effective way by which I can improve upon this skill is by preparing my self well in advance so that I dont get nervous and referring to books and articles relating to improving presentation skillsAnother skill I developed while conducting presentations and writing reports in university is Teamwork. works in teams is probably one of the most vital skills required to succeed in a workplace, especially with regard to how you communicate with the people you work with. 9 out of 10 jobs require you to work with teams. Working in teams with a diverse group of people has helped me understand how to communicate with my different co-workers and understand their views when solving a problem. Teamwork has a lot of benefits to offer, one of it being it helps to generate a lot of different ideas which leads to a creative solution and it definitely speeds up the process. Having more projects involving teamwork will surely lay me once I start working at a professional level where my skill would be tested.Since Ive started an independent life after devious to the UK I learnt how to be organized. Being organized has a lot of benefits disposed to it. It has proven to be both cost and time effective. It also helps to advance confidence and give more energy to work. Employers would love to have all their employees being organized in their work.

Natural product chemistry

indispens competent harvest-home alchemyIntroduction Of earthy overlap chemical scienceIn the beginning of organic alchemy was primal merchandises chemistry. For a long period, up to the 1960s the structural studies of immanent overlaps served as the rationale driving sop up for the disco really of refreshful chemic re compriseivity. The introduction of spectroscopic technical schoolniques, however, take untold of the intellectual challenge involved in structure elucidation. Further more(prenominal), immanent ingatherings chemistry suffered a dramatic decline from the mid 1990s when major pharmaceutical companies disinvested in this argona and switched to more rational combi-chem flakes. Neverthe little, the improvements in spectroscopic methods rush historically stimulated graphic products chemistry and the private roads to examine vernal fluxs from unusual organisms rapidly and systematically. Natural products chemistry survived and began to flourish again in young years also through chemic biology and chemical genetic acquaintance and the realization that instinctive product structures frequently explore structural place unavailable to combi-chem approaches. As a result, challenges for infixed product chemists atomic number 18 non diminishing, they be just changing. Natural product chemistry turned to an interdisciplinary science, where the success of a chemist would only be possible in close collaboration with biologists, pharmacologists, and clinicists. Thus many a nonher(prenominal) brisk biological activities much(prenominal) as beta-tubulin assembly inhibitors for example, could only have emerged from the natural products arena.Contents Of Natural ChemistrySteroids.- Terpenoids.- Fatty Lipids and Prostaglandins.- Alkaloid.- Amino Acids and Proteins.- Nucleic Acids.- Carbohydrates.- Plant and Insect Growth Regulators.- phenolic Compounds and Natural Dyes.- Marine Natural Products.- Antibacterials.- Vitamin s and Horm atomic number 53s. Natural productA natural product is a chemical flux or substance produced by a living organism found in nature that unremarkably has a pharmacological or biological activity for use in pharmaceutical drug stripping and drug design. A natural product gouge be considered as such make up if it bunghole be prepared by join tax write-off.These small molecules provide the source or consumption for the majority of FDA-approved agents and continue to be unmatchable of the major sources of inspiration for drug discovery. In particular, these compounds are important in the treatment of critical conditions.Natural sourcesNatural products whitethorn be draw ined from t edit outs of terrestrial plants, ocean organisms or microorganism fermentation broths. A crude (untreated) extract from any adept of these sources typically look intos novel, structurally diverse chemical compounds, which the natural environment is a rich source of.Chemical diversity in nature is ground on biological and geographical diversity, so researchers travel around the earthly concern obtaining samples to analyze and evaluate in drug discovery screens or bioassays. This effort to search for natural products is cognize as bioprospecting.Animal sourcesAnimals fecal matter some eons be a source of new bakshish compounds. For example, a serial of antibiotic peptides were extracted from the skin of the Afri stinker clawed frog and a firm analgesic compound called epibatidine was obtained from the skin extracts of the Ecuadorian poison frog.Screening of natural productsPharmacognosy provides the tools to identify, select and process natural products destined for medicinal use. Usually, the natural product compound has some form of biological activity and that compound is k promptlyn as the mobile principle such a structure rear act as a lead compound (not to be missed with compounds containing the element lead). umpteen of todays medicines are obta ined directly from a natural source.On the separate hand, some medicines are unquestionable from a lead compound originally obtained from a natural source. This means the lead compound groundwork be produced by total synthesis, or dissolve be a starting point (precursor) for a semisynthetic compound, or can act as a template for a structurally different total synthetic compound.This is because most biologically expeditious natural product compounds are secondary metabolites with very interlocking structures. This has an receipts in that they are super novel compounds nevertheless this complexity also makes many lead compounds synthesis arduous and the compound usually has to be extracted from its natural source a slow, expensive and inefficient process. As a result, there is usually an advantage in designing simpler analogues.The plant kingdomPlants have always been a rich source of lead compounds (e.g. morphine, cocaine, foxglove, quinine, tubocurarine, nicotine, and mu scarine). Many of these lead compounds are useful drugs in themselves (e.g. morphine and quinine), and new(prenominal)s have been the basis for synthetic drugs (e.g. local anaesthetics bring on from cocaine). Clinically useful drugs which have been recently isolated from plants accept the antineoplastic agent paclitaxel (Taxol) from the yew tree, and the antimalarial drug agent artemisinin from Artemisia annua.Plants provide a life-size intrust of rich, complex and highly varied structures which are unlikely to be synthesized in laboratories. Furthermore, evolution has already carried kayoed a screening process itself whereby plants are more likely to survive if they contain potent compounds which deter animals or insects from eating them. Even today, the number of plants that have been extensively analyse is relatively very few and the vast majority have not been studied at all.The marine worldIn recent years, there has been a great interest in finding lead compounds f rom marine sources. Coral, sponges, fish, and marine microorganisms have a wealth of biologically potent chemicals with interesting inflammatory, antiviral, and anticancer activity. For example, curacin A is obtained from a marine cyanobacterium and lay outs potent anticancer activity. Other antitumor agents derived from marine sources include eleutherobin, discodermolide, bryostatins, dolostatins, and cephalostatins.The microbial worldMicroorganisms such as bacteria and fungi have been invaluable for discovering drugs and lead compounds. These microorganisms produce a large mix of antimicrobic agents which have evolved to keep their hosts an advantage over their competitors in the microbiological world.The screening of microorganisms became highly popular after the discovery of penicillin. Soil and weewee samples were collected from all over the world in order to break down new bacterial or fungal strains, leading to an impressive arsenal of antibacterial agents such as the cephalosporins, tetracyclines, aminoglycosides, rifamycins, and chloramphenicol.Although most of the drugs derived from microorganisms are use in antibacterial therapy, some microbial metabolites have provided lead compounds in other fields of medicine. For example, asperlicin isolated from Aspergillus alliaceus is a novel antagonist of a peptide hormone called cholecystokinin (CCK) which is involved in the control of appetite. CCK also acts as a neurotransmitter in the brain and is thought to be involved in terror attacks. Analogues of asperlicin whitethorn therefore have potential in treating anxiety. Other examples include the fungal metabolite lovastatin, which was the lead compound for a series of drugs that set down cholesterol levels, and another(prenominal) fungal metabolite called ciclosporin which is utilize to suppress the immune response after transplantation operations.Venoms and toxinsVenoms and toxins from animals, plants, snakes, spiders, scorpions, insects, an d microorganisms are exceedingly potent because they often have very specific interactions with a macromolecular(a) target in the body. As a result, they have proved important tools in correctioning receptors, ion channels, and enzymes. Many of these toxins are polypeptides (e.g. -bungarotoxin from cobras). However, non-peptide toxins such as tetrodotoxin from the puffer fish are also extremely potent.Venoms and toxins have been utilise as lead compounds in the information of novel drugs. For example, teprotide, a peptide isolated from the venom of the Brazilian viper, was the lead compound for the development of the antihypertensive agents cilazapril and captopril.The neurotoxins from Clostridium botulinum are responsible for serious pabulum poisoning (botulism), exclusively they have a clinical use as well. They can be injected into specific brawns (such as those controlling the eyelid) to prevent muscle spasm. These toxins prevent cholinergic transmission and could well pr ove a lead for the development of novel anticholinergic drugs.Traditional MedicineIn the past, tralatitious peoples or ancient civilizations depended greatly on local flora and brute for their survival. They would experiment with various berries, leaves, roots, animal parts or minerals to find egress what accomplishments they had. As a result, many crude drugs were observed by the local healer or shaman to have some medical examination use. Although some preparations may have been dangerous, or worked by a watching or placebo effect, traditional healing systems usually had a substantial sprightly pharmacopoeia, and in fact most western medicines up until the 1920s were developed this way. Some systems, like traditional Chinese medicine or Ayurveda were richly as sophisticated and as documented systems as western medicine, although they index use different paradigms. Many of these aqueous, ethanolic, distilled, condensed or dried extracts do and wherefore have a real and b eneficial effect, and a study of ethnobotany can give clues as to which plants might be worth studying in more detail. Rhubarb root has been used as a evacuant for many centuries. In China, it was called The General because of its galloping charge and was only used for one or two doses unless processed to reduce its purgative qualities. (Bulk laxatives would follow or be used on weaker patients according to the complex laxative protocols of the medical system.2) The most significant chemicals in rhubarb root are anthraquinones, which were used as the lead compounds in the design of the laxative dantron.The extensive records of Chinese medicine about response to Artemisia preparations for malaria also provided the clue to the novel antimalarial drug artemisinin. The therapeutic properties of the opium poppy (active principle morphine) were known in Ancient Egypt, were those of the family Solanaceae plants in ancient Greece (active principles atropine and hyoscine). The snakeroot pl ant was well regarded in India (active principle reserpine), and herb doctors in medieval England used extracts from the allow forow tree(salicin) and foxglove (active principle digitalis a concoction of compounds such as digitoxin, digitonin, digitalin). The Aztec and Mayan cultures of Mesoamerica used extracts from a variety of bushes and trees including the ipecacuanha root (active principle emetine), coca bush (active principle cocaine), and cinchona peel (active principle quinine).It can be challenging to obtain information from practitioners of traditional medicine unless a genuine long term relationship is made. Ethnobotanist Richard Schultes approached the Amazonian shamans with respect, relations with them on their terms. He became a depswa medicine man sharing their rituals part gaining friendship. They responded to his inquiries in kind, leading to new medicines.3 On the other hand Cherokee herbalist David Winston recounts how his uncle, a medicine priest, would habitually give misinformation to the visiting ethnobotanists. The acupuncturists who investigated Mayan medicine recounted in Wind in the Blood had something to share with the native healers and thus were able to find information not available to anthropologists.4 The issue of rights to medicine derived from native plants used and frequently cultivated by native healers complicates this issue.Isolation and purgeIf the lead compound (or active principle) is present in a mixture of other compounds from a natural source, it has to be isolated and purified. The ease with which the active principle can be isolated and purified depends much on the structure, stability, and cadence of the compound. For example, Alexander Fleming recognized the antibiotic qualities of penicillin and its remarkable non-toxic nature to humans, but he disregarded it as a clinically useful drug because he was unable to purify it. He could isolate it in aqueous solution, but whenever he tried to remove the p issing, the drug was destroyed. It was not until the development of new experimental procedures such as freeze drying and chromatography that the successful isolation and elaboration of penicillin and other natural products became feasible.SynthesisNot all natural products can be fully synthesized and many natural products have very complex structures that are too difficult and expensive to synthesize on an industrial scale. These include drugs such as penicillin, morphine, and paclitaxel (Taxol). Such compounds can only be harvested from their natural source a process which can be tedious, time consuming, and expensive, as well as being gagaful on the natural resource. For example, one yew tree would have to be cut down to extract enough paclitaxel from its bark for a single dose. Furthermore, the number of structural analogues that can be obtained from harvesting is severely limited.A further problem is that isolates often work differently than the original natural products whi ch have synergies and may combine, say, antimicrobial compounds with compounds that stimulate various pathways of the immune systemMany higher plants contain novel metabolites with antimicrobial and antiviral properties. However, in the developed world nearly all clinically used chemotherapeutics have been produced by in vitro chemical synthesis. Exceptions, like taxol and vincristine, were structurally complex metabolites that were difficult to synthesize in vitro. Many non-natural, synthetic drugs cause severe side effects that were not delicious except as treatments of last resort for terminal diseases such as cancer. The metabolites discovered in medicinal plants may avoid the side effect of synthetic drugs, because they must accumulate within living cells.Semisynthetic procedures can sometimes get around these problems. This often involves harvesting a biosynthetic intermediate from the natural source, rather than the final (lead) compound itself. The intermediate could then be converted to the final product by conventional synthesis. This approach can have two advantages. First, the intermediate may be more easily extracted in higher yield than the final product itself. Second, it may allow the possibility of synthesizing analogues of the final product. The semisynthetic penicillins are an illustration of this approach. other recent example is that of paclitaxel. It is manufactured by extracting 10-deacetylbaccatin III from the sine qua nonles of the yew tree, then carrying out a four-stage synthesis.Use Of Natural ProductAyurvedaChinese medicineEthnobotany ledger of Natural ProductsPharmacognosyPhytotherapySecondary metaboliteDuring the last few decades, research into natural products has supercharged tremendously thanks to contributions from the fields of chemistry, life sciences, food science and material sciences. Comparisons of natural products from microorganisms, lower eukaryotes, animals, higher plants and marine organisms are now well docu mented. This book provides an easy-to-read overview of natural products. It includes twelve chapters covering most of the aspects of natural products chemistry. Each chapter covers general introduction, nomenclature, occurrence, isolation, detection, structure elucidation some(prenominal) by degradation and spectroscopic techniques, biosynthesis, synthesis, biological activity and commercial applications, if any, of the compounds mentioned in each topic. thence it will be useful for students, other researchers and industry. The introduction to each chapter is shortened and attempts only to supply general knowledge in the particular field. Furthermore, at the end of each chapter there is a list of recommended books for additional study and a list of relevant questions for practice. Combined with pharmacological screening, natural products chemistry has always provided highly useful leads for drug discovery. The searches for new biologically active compounds are most often based o n hints coming from ethnobotany but there are still a huge number of unstudied plants, not to speak of mushrooms, marine organisms, insects, and microorganisms. There is a wealth of molecular diversity out there, waiting to be discovered and utilized. The central issue of such type of studies, structure elucidation, although often believed to be trivial, is still a process full of adventure, discovery, and even unavoidable pitfalls. Thus structure elucidation has still much to offer, especially when combined with biological tests. Chemistry primaeval Journal is waiting for your results to publish.Besides the classic studies connected to pharmacological activities, new developments challenge natural products chemists, such as metabolomics, the large-scale phytochemical analysis in the functional genomics era. Metabolomic requires from a natural product chemist brilliant knowledge of modern analytical techniques and chemometry and close collaboration with biochemists and biologists. Chemical ecology, too, could not advance properly without natural product chemistry.Approximately 60% of the worlds population relies roughly entirely on plants for medication. However, if phytopharmaceuticals want to be regarded as rational drugs, they need to be standardized and pharmaceutical quality must be approved. For this reason, another important task for natural products chemistry is connected to standardization to develop proper analytical methods of quality control, to make sure that medicines obtained from natural sources are safe and of reproducible efficacy.The publication of natural product research results in an open access journal is of great importance with respect both to research activities and to effective use of natural resources, removing both price and authorization barriers. It is also important to authors, giving them the opportunity to publish their results where they will be most easily accessed by those who mostly need them. Natural Product Chemistry for Drug Discovery provides a comprehensive summary of where natural product chemistry is today in drug discovery. The book covers acclivitous technologies and upshot studies and is a source of up-to-date information on the local subject of natural products. The authors, all experts in their respective fields, provide oblige arguments as to why naturel products should be considered important tools in the drug discovery process. The book will appeal across the board from scientists to professionals, postgraduates and industrial chemists. The case studies selected for inclusion highlight recently marketed drugs and development candidates that have been derived from natural products. These real-life examples show how new technologies, such as advances in screening, isolation, dereplication and prefractionation, have significantly raise the discovery process.Introduction Of Synthetic Chemistry In primitive societies, even today, vestments are cleaned by beating them on rocks near a stream. Certain plants, such as sludgeworts, have leaves that produce sapions, chemical compounds that give a strapy lather. These were probably the front purifyings people used.If you look up detergent in a dictionary it is s refer defined as cleaning agent. During the last two to three decades, however, the word detergent has tended to imply synthetic detergent, or syndet for short, rather than the older soap. In fact, commercial formulations make up of a number of components, and we shall use the term surface-active agent, or its abbreviation surfactant, to describe the special active ingredients that give detergents their unusual properties.Soap, by this definition, is a surfactant. In fact, it is the oldest one and has been in use for over 4500 years. Some soap manufacture took place in Venice and Savona in the fifteenth century, and in Marseilles in the seventeenth century. By the eighteenth century, manufacture was widespread throughout europium and North America, and by the nineteenth century the making of soap had induce a major industry. As a matter of fact, soap became a detergent in 1907 when a German company put the product Persil on the market. In addition to the carboxylic acid soap, Persil contained sodium perborate, sodium silicate and sodium carbonate. Hence perborate + silicate = PERSIL.Synthetic Surfactant or Soap?You may well ask why soap, which served well for so many years, was finally displaced. Soaps are cheap and they are manufactured from a renewable source, whereas many of the synthetic detergents are made from petrochemicals. Soaps are also biodegradable that is, they are readily broken down by bacteria, and thus they do not pollute rivers. However, due to their gelling properties, soaps do have a greater magnetic inclination to clog sewerage reticulation systems than synthetic detergents. The grease trap of a non-sewered plate was often laden with soap. further the most important reason for the switching of soap is t he fact that, when a carboxylic acid soap is used in hard piddle, precipitation occurs. The calcium and magnesium ions, which give inclementness to the water, form insoluble salts with the fatty acid in soap and a curd-like precipitate occurs and settles, of course, on what ever is being backwashed. By using a large excess of soap, it is possible to redisperse the precipitate, but it is extremely sticky and difficult to move. This problem with soap can be demonstrated by a simple experiment in which a concentrated solution of hard-water salts is added to a 0.1% solution of soap and also to a 0.1% solution of synthetic surfactant. The soap precipitates, but the synthetic surfactant remains clear because its salts are water soluble.You may live in an area where the water is extremely soft. But calcium and magnesium ions are present in the dirt that you wash out of your clothes, so that some precipitation still occurs if soap is used, and in stages deposits are built up in the fabr ic.There are other disadvantages with soap it deteriorates on storage, and it lacks cleaning role when compared with the modern synthetic surfactants, which can be designed to perform specialised cleaning tasks. Finally and very importantly from a domestic laundry point of view, soap does not rinse out it tends to leave a residue behind in the fabric that is being washed. A residue gradually builds up and causes hopeless odour, deterioration of the fabric and other associated problems.Whats the Difference?Whats the difference between a surfactant and soap? In general terms, the difference can be likened to the difference between cotton and nylon. On the one hand, soap and cotton are produced from natural products by a relatively small modification. On the other hand, synthetic surfactants and nylon are produced entirely in a chemical factory. Synthetic surfactants are not very new, either. Back in 1834 the first forerunner of todays synthetic surfactants was produced in the form of a sulfated castor oil, which was used in the textile industry.The development of the first detergents in an effort to whelm the reaction of soaps with hard water provides a good illustration of one of the standard chemical approaches. If a useful substance has some unsuitable property, an attempt is made to prepare an analogue, a near chemical relation, which will prove more satisfactory.The petroleum industry had, as a waste product, the compound propylene, CH3-CH=CH2, which used to be burnt off. By joining four of these propylene molecules together and if benzene is attached at the double bond, the resulting compound reacts with sulphuric acid. Then sodium hydroxide is added to neutralise the sulfonic acid and a sodium salt is obtained. The new substance is closely related to an mean(a) soap, and is an excellent detergent.Detergent Foam LevelThe relationship between fizz power and detergency has always been of interest, and sparking power has become associated in many cons umers minds with high detergent power. The first liquid detergent on the Australian market was Trix. It was non-foaming, so was soon replaced because of consumer resistance. However, it is generally conceded by detergent technologists that foam height has no direct relationship to cleaning power in ordinary fabric race systems.In systems where the amount of washing fluid is low, foam may play an important role. The individual foam films tend to take up and hold particles of soil that have been removed from the item, preventing them from being re-deposited and allowing them to be washed or scraped away. Front loading washing machines work by bashing clothes against the side of the tub the high tech version of beating clothes on rocks. Front loaders clean clothes better than top loaders, but only if a low- froth detergent is used, because the suds cushion the impact and reduce the cleaning action.Chemical Characteristics Of Synthetic ChemistrySynthetic detergents dissolve or tend to dissolve in water or other solvents. To enable them to do this, they require distinct chemical characteristics. Hydrophilic (water loving) groupings in their molecular structure, and aquaphobic (water hating) groupings, help the detergent in its detergency action.This detergency depends on the balance of the molecular weight of the hydrophobic to the hydrophilic portion. This is called the HLB value, and can range from 1 upwards. HLB is Hydrophilic-Lypophilic Balance. As the 0HLB value increases, the product can tend towards being a paste or solid. The lower number HLB values tend to be less water soluble, and more oil soluble. The higher the HLB the more water soluble the product.Mixtures of low and high HLB detergents produce good detergents to handle oil, fat and grease, the higher HLB detergent helps solubilise the less water soluble, low HLB detergent into an aqueous system.