Chassis Strength Is Important Aspect Engineering Essay

Chassis Strength Is Important Aspect Engineering Essay Chassis strength is important aspect that needs to be considered in the study of a road vehicle design. Chassis or frames are the main structure for road vehicle design. Since the strength of chassis can be effected on stability and safety of vehicle. Because most of load are fully distribute along the chassis. Its will be have some critical point due to section that have more load over the beam section especially driver weight. This chapter introduce about the analysis of members under axial loading, beams, and frames. Structural members and machine components are generally subject to a push-pull, bending or twisting type of loading. Beams play significant roles in many engineering application, including building, bridges, automobiles and airplane structures. Beams are commonly subjected to transverse loading, which is a type of loading that creates bending in the beam. The definition of beam is a cross-sectional dimension of structural member that are relatively smaller than its length. A beam subjected to a distributed load is shown in figure 1.1. formulation to generate finite element models. However, the axial loading is defined as a linear element for the structure. For example in this section is employed to introduce the basic ideas of one dimensional element and shape function. Steel columns are commonly used to support loads from various floors of structural. The loading from the floors causes vertical displacements of various points along the column. Nowadays, with the high level of CAD to design, added with a computational technique in simulation and greater understanding in finite element analysis will help engineers to produce a more efficient in chassis building which is have lighten weight but have sufficient strength. This method also can improve of car from any factor such as twisting or actually have some deformation to the chassis. Analysis of strength chassis of car is the best answer to solve this problem. A  ¿Ã‚ ½UiTM Shell Eco-Sprint ¿Ã‚ ½ car which will participate in Shell Eco Marathon Asia 2012 was selected in this study to investigate about their chassis strength and each critical point that have for every chassis section. This project will focus on the Finite Element Analysis (FEA) analysis as a method to analyze the strength characteristic of the car design with different of chassis types. After that, the obtained result will be compared each other to choose which are the best strength chassis. The competition is split into two classes. The Prototype class focuses on maximum efficiency, while passenger comfort takes a back seat. The Urban Concept class encourages more practical designs. Cars enter one of seven categories to run on conventional petrol and diesel, biofuels, fuel made from natural gas (GTL), hydrogen, solar or electricity. Over several days, teams make as many attempts as possible to travel the furthest on the equivalent of one litre of fuel. Cars drive a fixed number of laps around the circuit at a set speed. Organisers calculate their energy efficiency and name a winner in each class and for each energy source. The scopes of safety, teamwork, design, and technical innovation will be including in mark for this competition. The competition inspires the engineers of the future to turn their vision of sustainable mobility into reality, if only for a few days. It also sparks passionate debate about what could one day be possible for cars on the road. 1.3 Problem statement When Formula 1 began in early 1950 ¿Ã‚ ½s, most of Europe racing teams used basic space frame chassis(Figure 1.2),that formed from the comprised of a series beams to be the complete shape of the car and consist of the engine, suspension, driver, and other vehicle sub-system. One of the main advantages of using the space frame design is its easy and logical construction process, of which can be performed by student with intermediate knowledge and experience using basic welding and metal working equipment. For the UITM Shell Eco-Sprint car, we choose space frame chassis as our type chassis design. The chassis must have the best possible strength to minimize deformation to vehicle and consequently make the chassis more safety from any dangerous. And also prevent from any crack happen to the chassis. In early stage, the chassis is designed with a lot of weakness in terms of strength of materials. This is because the load applied to the chassis is different from many directions. As example the driver load, tires holder, engine load. The entire factor will effect to the chassis strength and can make some deformation for any critical point. This project  ¿Ã‚ ½UiTM Shell Eco-Sprint ¿Ã‚ ½ will be started with design and modeling the car chassis using CAD software (SOLIDWORKS 2010). This research will focuses on 3D analysis. After the design is completed, it will be go through with Finite Element Analysis (FEA) modelling and mesh optimization. The strain, stress and deformation of the chassis will be investigated and analyzed by using application in Solidwork software. The strain, stress and deformation of the chassis also will be investigated and analyzed by using application in Abaqus software. Besides that, there have two drawing with different construction. The drawing is modelling by using Solidworks software. First, the beam of chassis constructed with the tube hollow without any modification to the beam surface. For the second, the beam of chassis was constructed with the same tube hollow but has some modification with horizontal holes along the beam structure as in figure 1.3. This two sample analysis will analyzed by using ABAQUS software and compared which one less deformation or the hole can make much critical strength or can increase the deformation of the chassis.The parametric study for this project is thickness and holes diameter of hollow tube. 1.3 Objective of research To ensure the successfulness of this research, the objective must be achieved. The objective of this research is as follow: 1) To reduce weight and making components more compact. 2) To improve the strength and rigidity characteristics. 3) To obtain the light weight chassis but have sufficient strength. 2.0 Introduction Finite Element Analysis (FEA) consists of a computer model of a design or material that is analyzed purposely to get a specific result. It is widely applied in a new product design, and existing product. A company is able to verify a proposed design will be able to perform to the clients specifications prior to manufacturing or construction [1]. Modifying an existing product or structure is utilized to qualify the product or structure for a new service condition. In case of structural failure, FEA may be used to help determine the design modifications to meet the new condition [1]. Nowadays, many of industry have analyzed by using 2D modelling and 3D modelling. While 2-D modelling conserves simplicity and allows the analysis to be run on a relatively normal computer, it tends to yield less accurate results [1]. 3-D modelling, however, produces more accurate results while sacrificing the ability to run on all but the fastest computers effectively [1]. Inside each of these modelling schemes, the programmer can insert various functions to make the system perform linearly or non-linearly. Linear systems are far less complex and generally do not take into account plastic deformation while non-linear systems do account for plastic deformation, and many also are capable of testing a material all the way to fracture [1]. 2.1 How does Finite Element Analysis work. Finite Element Analysis (FEA) is one of the most common examples of engineering analysis and one of most commonly used and powerful feature of the CAD software. It can be applied in structural and FEA usually used in problems where analytical solution not easily obtained. To carry out the analysis of the object by using FEA, the object is dividing into finite number of small elements of shapes like rectangular or triangular. FEA used as a complex system of points called nodes which make a grid called a mesh [1]. This mesh is programmed to contain the material and structural properties which define how the structure will react to certain loading conditions. Nodes are assigned at a certain density throughout the material depending on the anticipated stress levels of a particular area [1]. Regions which will receive large amounts of stress usually have a higher node density than those which experience little or no stress. Points of interest may consist of fracture point of previously tested material, fillets, corners, complex detail, and high stress areas [1]. The mesh acts like a spider web in that from each node, there extends a mesh element to each of the adjacent nodes. This web of vectors is what carries the material properties to the object, creating many elements [1]. The figure 2.1 below show the sample of meshing step 2.2 Advantages of Finite Element Analysis The Finite Element Analysis is very important for every design. A new design may be modelled to determine its real world behaviour under a multiplicity of load category; hence it can be adjusted earlier to the design of drawings. There have many of advantages by using Finite Element Analysis. Firstly, it is very important tools for stress and strain analysis because it provides accurate information. Once a detailed CAD model has been developed, FEA can analyze the design in detail, saving time and money by reducing the number of prototypes required [2]. Then, this method can help to modify an existing product which is experiencing a field problem, or is simply being improved, can be analyzed to speed an engineering change and reduce its cost [2]. That is the case of study where some analysis are run in the computer to see how the occurrence of a stress concentrator affects the behaviour of the elements. If the concentration is high, the element can be modified with ease and the subjected to analysis again, and depending on the result, a decision has to be taken to see if it needs more changes. The combination of the software with other types of software is a very useful tool because the programme of the finite element analysis allows the designer to import models from other CAD software to another FEA software. FEA also can be performed on increasingly affordable computer workstations and personal computers, and professional assistance is available [2]. The Finite Element Analysis (FEA) has been widely implemented by automotive companies and is now used by design engineers as a design tool during the product development process. Some of modern FEA packages consist of detailed components such as thermal, electromagnetic, and structural working environments. In a structural simulation, FEA helps tremendously in producing stiffness and strength visualizations and also in minimizing weight, materials, and costs [3]. FEA allows detailed visualization of where structures bend or twist, and indicates the distribution of stresses and displacements [3]. FEA software provides a wide range of simulation options for controlling the complexity of both modelling and analysis of a system [3]. In the same way, the accuracy level and associated computational time requirements can be managed all together to most engineering applications. FEA allows entire designs to be constructed, refined, and optimized before the design is manufactured [3]. This powerful design tool has significantly improved both the standard of engineering designs and the methodology of the design process in many industrial applications [3]. The introduction of FEA has significantly decreased the time to take products from concept to the production line. It is primarily through improved initial prototype designs using FEA that testing and development have been accelerated. In summary, benefits of FEA include increased accuracy, enhanced design and better insight into critical design parameters, virtual prototyping, fewer hardware prototypes, a faster and less expensive design cycle, increased productivity, and increased revenue [3]. The definition of stress is a force exerted when one body or body part presses on, pulls on, pushes against, or tends to compress or twist another body or body part [4]. A normal stress, s as defined as: Where dF is a differential normal force acting on a differential area dA. It can summarized that normal stress is s = P/A, where P is the resultant force on area A. 2.4.2 Stress Von Misses The stress von misses known as yield criterion suggests that the yielding of materials begins when the second deviatoric stress invariant reaches a critical value [5]. Simple equations relate the tensile yield stress, shear yield stress and compressive yield stress to a material property. Von Misses stress is determined from the stress state as: 2.4.3 Strain Strain is a measure of intensity of deformation, which is an importance variable in the development of formulas used in the design against deformation failures [6]. The change in structure shape can be described by the displacements of point on the structure. The strain, e as define as: Where, ?L represents the deformation of the line and Lo the original value. 2.4.4 Tensile properties Tensile properties illustrate the reaction from material to forces that applied in tension. A tensile test is a basic mechanical test where a carefully prepared specimen is loaded in a very controlled manner while measuring the applied load and the elongation of the specimen over some distance. Tensile tests are used to determine the modulus of elasticity, elastic limit, elongation, proportional limit, reduction area, tensile strength, yield point, yield strength and other tensile properties [7]. 2.4.5 Elastic-plastic behavior Elastic region is the region of the stress-strain curve in which the material returns to the undeformed state when applied forces are removed. The plastic region is the region in which the material deforms permanently. Yield point is the points separating the elastic from the plastic region [7]. The elastic behavior, plastic behavior and yield point can be described from stress  ¿Ã‚ ½ strain curve. The stress at yield point is called yield stress. The permanent strain when stresses are zero is called plastic strain. The stress strain curve describing an elastic  ¿Ã‚ ½ plastic behavior for a ductile material is show in Figure 2.2. 2.4.6 Young ¿Ã‚ ½s modulus Young ¿Ã‚ ½s modulus, E can be defined as the ratio of the uniaxial stress over the uniaxial strain in the range of stress in which Hooke ¿Ã‚ ½s Law holds [6]. It is used to measure the stiffness of an isotropic elastic material. It also called as the modulus of elasticity, elastic modulus or tensile modulus. It can be represents the gradient of the straight line in a stress-strain curve. Since the calculation of Youngs modulus, E is equal to tensile stress dividing by tensile strain: E = the Youngs modulus (modulus of elasticity) (N/m ¿Ã‚ ½). F = the force applied to the object, (N). A0 = the original cross-sectional area through the force applied, (m ¿Ã‚ ½). ?L = the amount by which the length of the object changes, (m). L0 = the original length of the object, (m). 2.5 Material Selection The alluminium alloy (6063 t5) was selected in chassis shell eco challenge. Because the characteristic of alluminium simply enough to produce high quality chassis. In addition, Aluminium is remarkable for the metals low density and for its ability to resist corrosion due to the phenomenon of passivation. Structural components made from aluminium and its alloys are vital to the automotive industry and are important in other areas of transportation and structural materials. The most useful compounds of aluminium, at least on a weight basis, are the oxides and sulphates.  ¿Ã‚ ½Aluminum may be the majority of plentiful steel within the Earth ¿Ã‚ ½s brown crust area, and also the 3rd the majority of plentiful component, following air as well as silicon. This is the reason 8% through pounds from the Earth ¿Ã‚ ½s strong area. Because of simple avaibality, higher power in order to pounds percentage, simple machinability, long lasting, ductile as well as malleability aluminum may be the most favored non-ferrous steel within 2005 had been 31.9 million tonnes ¿Ã‚ ½ [3]. 2.5.1 Advantages of Aluminium Aluminium is very light metal with a specific weight of 2.7 gm/cm3, about a third that of steel. For example the use of aluminium in vehicles reduces dead- weight and energy consumption while increasing load capacity. Its strength can be adapted to the application required by modifying the composition of its alloys. The application of light weight, strong and long lasting aluminium alloy is shown in figure 2.3 and 2.4 [4]. actually creates the protecting oxide layer and is highly corrosion resistant. It is especially helpful for application where protection and conservation are necessary needed. The application of highly corrosion resistance aluminium alloy is shown in figure 1.3 and 2.5. [4]. Combining of aluminium and alloy will increased the strength and stiffness properties of aluminium compared to conventional metals and alloys. From the figure below can conclude that material aluminium have middle range of stiffness. In aspect of safety, the stress of chassis by using alluminium alloy in the high level safety. Alluminium alloy also can reduce the cost to build a racing car chassis. So far Alluminium alloy is the best material for the construction of vehicle chassis for Shell Eco-Marathon competition because many of benefits those have in combination of aluminium and alloys. The properties of alluminium alloy shown as in table 2.6 below. 3.0 Preparation for Finite Element Analysis (chassis) Finite Element Analysis (FEA) is designed to help an engineer to understand the physical events that occur on the chassis or beam of the vehicle within designated objects. These events are related to the action and interaction of phenomena such as deformation, distorsion, crack and deflection due to the chassis. Because of the capabilities of the FEA software, FEA software now is very popular among the design engineer to help them in reduces cost because the actual simulation can be done before the design is modelled especially in automotive and aeronautic industry. In this project, the purpose of FEA simulation was to simulate the chassis car vehicle model similarity to the real situation. In other side, FEA is used to study strength of the chassis vehicle, to obtain the deformation of the beam section and can get the critical point due to load that applied to the chassis. The strain, reaction and element force also can get by doing the FEA method. The Finite Element Analysis was simulated by using software SOLIDWORKS 2010. In order to create the 3-D drawing for this simulation, SOLIDWORKS 2010 is used to draw the chassis due to complicated shaped and smooth surface. Then continue to make the simulation and analysis towards the completed drawing. To carry out the 3-D analysis, the work was divided into following procedure: 1. Define type of study. 2. Create material defination. 3. Assign material properties. 4. Assign fixed geometry. 5. Apply the external loads. 6. Create mesh for the subject. 7. Process Analysis result. The sequences of simulation process are shown 3.1 Create Model of UiTM Shell Eco-Sprint Chassis by Using CAD Software The selection of the 3-D drawing for  ¿Ã‚ ½Uitm Shell Eco-Sprint ¿Ã‚ ½ car software is due to the capabilities and user friendly factor of the software. In the development of the 3-D drawing for  ¿Ã‚ ½Uitm Shell Eco-sprint ¿Ã‚ ½ car is done by using SOLIDWORKS 2010 software. The figures 3.2, 3.3 and 3.4 below show the isometric view, top view and side view of the  ¿Ã‚ ½Shell Eco-Sprint ¿Ã‚ ½ chassis. 3.2 Analysis using SOLIDWORKS 2010 Software 3.2.1 Step in the Finite Element Analysis There are seven important steps in the finite Element Analysis: i. Define type of study. This research focused on static study. Whenever a load to be put on the entire body, the body deforms and also the impact associated with lots is actually sent through the entire body. The actual exterior lots stimulate inner causes as well as responses in order to make your body right into a condition associated with balance [9]. The main subjects that calculated in static analysis are stress, strain, displacement and reaction forces from the loads that applied on chassis. The static stady is showing in figure 3.5. ii. Create material defination. Before running the analysis, the material of chassis must be defined. This is very important step because there have much of material optional that can be choosing. Every material has different value of properties depend on analysis type. For example the static analysis stady is required a specific modulus elasticity value. Figure 3.6 below show how to create material defination iii. Assign material properties. The material that selected in this analysis is Aluminium Alloys 6063-T5. There have the specific value for elestic modulus, poissons ratio, density and yield strength that will be use for the analysis. The material properties show in figure 3.7 below. iv. Assign fixed geometry. After the material was selected, the chassis will be set up the fixed point. The fixed point usually located at tyre holder. There have four fixed points to be set up in this analysis. Two points located by the side of front chassis and balance located at the back chassis as in figure 3.8. v. Apply the external loads. The main objective of the analysis is to observe the deformation of chassis. The deformation of chassis is caused by the force that applied toward the chassis. So, there have three external loads that involve in this analysis. The loads are illustrated as in figure 3.9 and figure 3.10. Load Criteria Force(N) vi. Create mesh for the subject. Then, the program subdivides the model into small pieces of simple shapes connected at common points. This step called meshing process and the figure 3.11 below illustrate how to create mesh type. After all procedure has done, the analysis will run to get the result of analysis. The results can be visualized after the analysis was completed. Those results of analysis consist of displacement, stress, strain, and factor of safety. 3.3 Analysis using ABAQUS 6.10 Software ABAQUS software can be a user-friendly non-linear specific aspect program code as it could manage the particular modeling treatments directly into web template modules. Each and every element includes related tools to perform a certain process. This analysis focused to determine the maximum load and deflection of the beam section due to the load applied. There have 8 modules that must be following in finite element analysis by using Abaqus software: i. Parts module ii. Property module iii. Assembly module iv. Step module v. Interaction Module vi. Load module vii. Mesh module viii. Load module 3.3.1 Parts module For the simulation analysis process, the model of beam will be simulated by using ABAQUS software. In order to run the simulation, the model will be imported into Geometry for model preparation. The 3-D model of tube hollow is constructing by using Solidwork2010 and converts to IGES file to be import into Abaqus 6.10. The figure 3.12 below show the part that imported will be in shell. The scale of import part will multiply it length by 0.001 because all dimensions in Abaqus are using in meter. The other parts that will involve in this analysis are two support span and the hammer that will contribute as force movement on the beam. Those parts were defined as discrete rigid geometry in 3-D modeling space in Abaqus workbench. The material that has chosen on this chassis is aluminium alloy 6063 (T5). The material properties of aluminium alloy for general or mechanical (plastic and elastic) were filled up in this step as in figure 3.13 below. Those properties that must be filled up are: I. Density II. Young ¿Ã‚ ½s modulus III. Poisson ¿Ã‚ ½s ratio IV. Yield stress V. Plastic stress be change to other value as in figure 3.14 below. Then the assign section will apply into the beam to locate the material properties and the thickness value. In this module, the references point that locates at tools menu must be created to all parts except the beam. Figure 3.13: Material manager step. For the section manager step, the beam parts will set as homogeneous type. This is very important step where the value of shell thickness will ditermine and can 3.2.3 Assembly module All parts that created before will assemble together in this module. The instance parts will create and the position of parts will adjust using coordinates and translation command. There must have surface contact between parts and beam as shown in figure 3.15 below. 3.2.4 Step module This analysis focused on dynamic and explicit procedure. The time period will set at 0.03s as in figure 3.16 below. The incrementation and mass scalling will be in default setting. There have history output request to be create for this analysis. First output will set up for the whole model and the output variable selection is energy as in figure 3.17 Then, the history output request for hammer only was set as second output. The rotations scope as in figure 3.18 below. The translational will define hammer movement by make x, y and z axis as references. output variables for the support part. Those outputs are reaction force and moment as in figure 3.19 below. The direction of the reaction will refer in x, y and z axis. 3.2.5 Interaction module General contact (explicit) was selected to analysis the contact behavior of the beam as in figure 3.20. Then the contact property will create as a friction. The tangentional behavior and friction formulation with type penalty was selected to characterize the contacts between the beams and hammer during analysis. The friction coefficient was set at 0.25 as in figure 3.21 to avoid sliding of the structure. 3.2.6 Load module The boundry condition is using to create a movement for every part. For the hammer, the displacement will set by 0.07m only in y-direction. The negative sign show the movement will in opposite of axis direction depend on the assembly model. The smooth step was selected for amplitude of movement as in figure 3.22. Besides, there have no movement for two support and was in fixed condition. So, the point for displacement and rotation remain zero for every direction and angle. 3.2.7 Mesh module Meshing step is the program that subdivides the model into small pieces of simple shapes connected at common points. The sizes of mesh are depending on seed size. For this analysis, the seed size of beam was set to 0.005m. Next, the element type is explicit and the structure technique was selected as technique of mesh control. Then, the step will go trough by select the instance region to be meshing as in figure 3.23. After procedure in Geometry and Meshing was complete, the model now ready to simulate in Setup software in order to solve the appropriate problem and visualization the result. The step involves in Setup software is to define the properties, the physical condition, and the visualization scene. 3.4 Experimentals Preparation This subtopic will introduce about the procedure preparation for tensile test and flexural test experiment. These two experiments are related with the analysis that have done by using CAD software. And the result of the experiment is used to make a comparison between the simulation results in Finite Element Analysis. The tensile test is probably the simplest and most widely used test to characterize the mechanical properties of a material. The setup for the test as described in this tutorial and as performed in the laboratory is based upon standards established by the American Society for Testing and Material (ASTM). The main purpose of tensile test experiment is to get stress and strain of material. From there, the graph of stress against strain will be constructing and can obtain the stress-strain curve. The young ¿Ã‚ ½s modulus directly defined by calculating the slope of the stress-strain curve. Than the experimental value of the young ¿Ã‚ ½s modulus can be compare to the analysis value that use in finite element analysis. 3.4.1 Material testing (Tensile Test) For the analysis beam, there will have a comparison between results of physical testing (tensile test) and FEA modelling result of the beam chassis. These steps are made in order to reduce any possible error due to analysis that have constructed. From the Abaqus software there has material input to define young ¿Ã‚ ½s Modulus. To prove the values of theses material properties as provided by the manufactures would hopefully reduce the error between modelled result and tested result for the chassis performance. So the young ¿Ã‚ ½s Modulus of alluminium alloy (6063 T5) can be calculated directly by doing tensile test experiment. The properties that measured from this experiment are ultimate tensile strength, maximum elongation and reduction in area. Beside that, those properties also can calculate possion ¿Ã‚ ½s ratio and yield strength of the materials. The figure 3.24 below show the schematic diagram of tensile test. 3.4.1.1 Sample preparation There have 5 samples that will contribute with tensile test experiment. The entire samples have same dimension and thickness. Because the only way to obtain the percise value is get the average result of the samples. All of the samples that will run trough this experiment are already in dog bone profile as shown in figure 3.25. 3.4.1.2 Method of Tensile Test Experiment. Firstly, the speciemens file is created and all the parameters were set-up before start the experiment. The speed that set in this tensile test experiment is 5mm/min. So the speciemens start to install in lower grip and leave upper grip open. Then close the upper grip until the speciemens perfectly grip with the upper and lower clamps as in figure 3.26. Then the experiment can be started by press  ¿Ã‚ ½start ¿Ã‚ ½ button until the test proceed through elastic range until yielding is clearly present on the scope. The main ojective of flexural testing is to determine parameters such as bend strength, yield strength in bending and elastic modulus. Regarding with the project, the flexural experiment is use to investigate response of metal when subjected to bending. Bending as well as flexure measurement can be widespread throughout along with brittle resources as their multifunction behaviors are generally linear including concretes, stones, woodlands, pockets, cups along with ceramics. Other designs involving brittle resources including powdered ingredients metallurgy highly processed mining harvests along with resources tend to be screened underneath a new transverse flexure. Bend over examination can be for that reason well suited for assessing energy involving brittle resources wherever model involving tensile examination response to a similar product can be tough on account of smashing involving specimens all-around specimen gripping. 3.4.2.1 Sample prep

What Would You Like to Ask?

A group of British Boys, Marooned on an Island A group of British school-boys find themselves marooned on an island (perhaps in the Pacific Ocean). They were being transported by an aircraft from England to some safer country on account of a nuclear war which had broken out in Europe. When, on the way, the aircraft caught fire the pilot released the detachable passenger-tube carrying the school-boys. The passenger-tube crash-landed on this island, and most of the boys managed to come out of it although some were trapped in the passenger-tube which was soon carried away by the waves into the open sea and lost.At first the boys who have landed on the island get scattered but soon they are able to get together when one of the boys by the name Ralph, having discovered a conch-shell, happens to blow it. Ralph now suggests that the boys should have a chief to guide them and to direct their activities. A boy called Jack, who is the leader of a group of choir-boys, says that he should be acc epted as the chief because he is chapter-chorister and head boy and because he can sing C sharp.But Ralph says that the chief should be chosen by votes. As the majority of the boys are in favour of Ralph, Ralph declares himself as the duly elected chief. Ralph now frames certain rules regarding the holding of meetings of the boys and about the conduct of these meetings. He says that, if anyone wishes to address the assembly at any meeting, he should ask for the conch and should hold the conch in his hands. Ralph Elected as the Chief. His Constructive Suggestion A conflict now begins between Ralph and Jack.Ralph had allowed Jack to continue as the leader of his choir-boys. Jack had the designated his choir-boys as the â€Å"hunters†. Having seen pigs on the island, Jack makes plans to hunt down and kill them in order to obtain meat for boys who feel fed up with the fruit which they have to eat everyday to keep themselves alive and who are craving for meat. Jack is a boy of an adventurous spirit, and the desire to hunt pigs becomes an obsession with him. Jack now begins to hate Ralphs because Ralph’s priorities are different fromJack’s. Ralph insists on the maintenance of the fire and the smoke, while Jack is wholly occupied with the hunting of pigs. Jack, having proved quite successful in his hunting expeditions, has won the support of the majority of the big boys who have come to be known as the â€Å"Biguns†. Jack therefore becomes increasingly defiant towards Ralph. Ralph now develops a liking for piggy who becomes an ardent supporter of Ralph. Jack hates Piggy even more than he hates Ralph. A beast on the Mountain-TopOne morning Sam and Eric, who are twins and who had been put on duty one night to keep the fire burning, come in a state of deep perturbation from the mountain-top and tell Ralph and the others that they have seen a beast on the mountain-top and that the beast had tried to chase them in order to seize them. Ralph, Di splaced By Jack. Simon’s Hallucination In the course of one such expedition, Jack offers the head of a slain pig as a gift to the beast in the hope that would not harm him and his hunters.Simon at this time is at his usual hunt in the forest and witnesses the action of Jack and his hunters and his hunters in offering a gift to the beast. Simon, Killed by Jack’s Hunters Jack has now begun to adopt the primitive method of tribal leaders. He refers to his followers as his â€Å"tribe† and he keeps his face painted all the time with red clay, white clay, and charcoal, asking his followers also to paint their faces in the same way. He has also begun to encourage mock-hunts in the course of which the boys dance and sing and chant certain words relating to their hunting operations and their killing of pigs.Jack and his followers now become more and more callous, with the result that, in the course of one mock-hunt, Simon is killed by the hunters. The hunters, in their frenzied excitement, had taken Simon for the beast and had pounced upon him. Jack does not experience the least regret over Simon’s death. Later, Jack accompanied by a couple of his supporters, raids Ralphs camp and takes away Piggy’s spectacles because he and his supporters need the spectacles in order to light a fire every time they want to roast pig-meat.Jack had now become quite oblivious of the to rescued from island ; but Ralph and Piggy are filling constantly worried as to whether any rescue will come, especially now when the cannot light a fire a fire and keep it burning as a distress-signal to the sailors of a passing ship. Piggy, killed. Ralph’s Life in Danger Piggy feels distraught because, without his spectacles he cannot see anything. He therefore says that he would go to Jack and demand the return of his spectacles. Ralphs thereupon calls jack â€Å"a swine† and â€Å"a bloody thief†.There is an exchange of blows between of blows betw een Ralphs and Jack. Then Piggy speaks and, addressing Jack’s savages, urges them to follow a sensible course of action instead of living like primitive savages. At this point Roger, who has become as savage as Jack, releases a rock from above in order to kill piggy. The Savages’ Pursuit of Ralph. Ralph, saved Ralph hides himself in the forest. But a little later he sees the twins standing guard at the entrance to Jack den. In a state of panic he runs out of the forest towards the beach. He stumbles and falls down on the sand.Thinking that now there is no hope for him, he cries for mercy. On looking up, however, he sees a British naval officer in full uniform standing close to him. Thus Ralph’s life has been saved. The officer says that he would take all the boys home. Ralph now bursts into tears. His whole body is shaken by spasms of grief. He weeps at â€Å"the loss of innocence†, at â€Å"the darkness of man’s heart†, and at the thought o f the death of Piggy who was his true friend. Rescue had come, but two noble-minded and innocent boys have been killed in account of the brutality of jack.Evil had reigned supreme on the island for some time. The Allegorical Significance of the Story Golding wanted to demonstrate that the evil instincts in a human being would rise to the surface and assert themselves as soon as that human being has been liberated from the restraints of civilized. The majority of people in this world are inherently evil. Evil is ineradicable, and it asserts itself as soon as it finds a favourable climate. The favourable climate consists in the removal of the fear of law and in the removal of all those restraints which civilized life imposes upon human beings.

Pregnancy: the Effects of Alcohol and Substance Abuse Essay

Abstract This paper examined the effects of alcohol and substance abuse on fetal development in expecting mothers. The critical periods of fetal development during pregnancy are reviewed and discussed in order to determine the effects alcohol and substance can cause during certain stages. In order to gain a more efficient understanding of the effects different substances can have on fetal development the following substances were studied: (1) alcohol, (2) cocaine, (3) opioids, (4) nicotine (smoking), and (5) cannabis sativa (marijuana). Each substance (previously listed) examined was provided with supporting evidenced of past research. Developmental (i.e. physical and mental) impairments were found to be common amongst the general population of newborn infants and children exposed to alcohol and drug substances in utero. Use of alcohol and drug substances during pregnancy not only put expecting mothers own health at risk, but their fetuses as well. Providing expecting mothers with proper treatment for alcohol and substance use has proven to be an effective method in reducing the risk of impairing their fetus’s development (i.e. physical, and mental) during pregnancy and later into childhood. It is essential to provide general awareness to the public about the affects that alcohol and substance abuse can have on fetal development and help pregnant women seek proper care. Pregnancy: The Effects of Alcohol and Substance Abuse on Fetal Development Today alcohol and substance abuse is continuing to increase across the general population, particularly among expecting mothers (Cohen &Inaba, 2007). Many infants being born today suffer from severe physical, mental, and behavioral deformities and impairments due to alcohol and substance exposure in utero (Cohen & Inaba, 2007). Research has been continuously conducted in order to examine the effects different substances can have on a developing fetuses growth (i.e. physical, mental, and behavioral) in utero and after birth. The majority of their findings indicate a strong correlation between the time, type and amount of substances mothers use during their pregnancy and the effects it has on their fetuses (Cohen & Inaba, 2007). The purpose of this paper is to address these issues through several different concepts: (a) first, what are the critical levels of development in utero?, (b) an in depth review on substances associated with fetal impairments (i.e. alcohol, cocaine, opioids, nicotine, and cannabis sativa (marijuana)), supported by scientific evidence and possible treatment, and (d) identifying substance abuse in expecting mothers and reducing harm to the fetus. Critical Periods of Fetal Development The first critical period of fetal development is known as the germ cell period. This begins when a sperm and egg unite and their genetic information is fused together (Office of Children’s Health Protection, 2003). During this period exposure to any form of toxicant substances (i.e. alcohol and drug substances) can potentially harm the germ cells development. This can have a direct impact on not only the mother’s fertility, but also her future child’s health (Office of Children’s Health Protection, 2003). After the germ cells have developed past what is known as a single-cell zygote, they are now identified as a fetus (meaning they are capable of living outside of the mothers womb) and have reached the embryonic and fetal period of development (Office of Children’s Health Protection, 2003). The fetus grows increasingly fast during this period, because it is consider more vulnerable to environmental and substance exposures than during other stages o f development (Office of Children’s Health Protection, 2003). This is due to the fact that major organs are beginning to form, grow and develop, which will continue throughout the remainder of the pregnancy and infancy (Office of Children’s Health Protection, 2003). Disruption of development (i.e. environmental toxins and substances) during this period can cause major defects in the structure of developing organs (i.e. brain cellular structure, lungs, heart, kidney, and etc.), and other important structures (i.e. bones and muscles). This may result in the death of the fetus or cause severe physical malformations (i.e. congenital abnormalities) or mental impairments (i.e. disorders) (Office of Children’s Health Protection, 2003). As the stages of prenatal development progress, exposure to environmental toxins and substances can result in the fetus developing an array of defects and deficiencies that can continue after birth and up through adulthood (i.e. physical, mental, and behavioral) (Office of Children’s Health Protection, 2003). It is clear that expecting mothers need to be conscious of what they expose their fetuses to in utero so they develop properly. It is imperative that expecting mothers avoid the use of any alcohol or other drug substances during their pregnancy. Each period of development for a fetus is critical and exposure to alcohol and substances can significantly reduce their chance of being born and living a healthy life (Office of Children’s Health Protection, 2003). The Effects of Different Substances on Fetal Development Expecting mothers need to be cautious of what they expose their growing fetus to throughout the entire pregnancy. Disruption of proper fetal development can cause severe deformities in the fetus physically, mentally, and behaviorally (Cohen & Inaba, 2007). Expecting mothers ingest alcohol and drug substances leave their fetus susceptible to severe developmental impairments (Cohen & Inaba, 2007). The following areas will be covered in this section: (1) fetal exposure to alcohol, (2) fetal exposure to cocaine, (3) fetal exposure to opioids, (4) fetal exposure to nicotine, and (5) fetal exposure to cannabis sativa (marijuana). Fetal Exposure to Alcohol When expecting mothers consume alcohol they are immediately putting their fetus’s health at risk. Essentially they are leaving their fetus susceptible to not only structural deformities, but also a variety of fetal alcohol spectrum disorders (FASD) (Feldman, pg.76, 2011). Out of all of the FASDs, fetal alcohol syndrome (FAS) is the most common. Statistics indicate that over â€Å"0.33-2.9 cases per 1,000 births have FAS† (Cohen & Inaba, 2007). FAS typically results in the fetus developing the following problems: (1) severe abnormalities in physical, neurological and behavioral functioning and development, (2) severely reduced weight and cranium size, (3) deformities of the face and other body parts (otherwise known as dysmorphia), and (4) are at higher risk for Sudden Infant Death Syndrome (SIDS) (Feldman, pg.76, 2011). In essence exposure to alcohol can significantly affect a fetus internal and external body structure, can cause neurological and behavioral abnormalitie s, and even physical deformities. Research Kenneth Jones (1986) supports this assumption through his studies on FAS. Jones (1986) findings suggest that FAS effects the development of the fetus’s brain and facial/bodily structures during utero and after birth. Typically children will be diagnosed with moderate to severe mental retardation due to structural deformities in their the brain (i.e. microcephaly, short palpebral fissures, and etc.) or they will be identified as having severe facial dysmorphia (i.e. long smooth philtrum, thin vermilion of the upper lip, joint anomalies, altered palmar crease pattern, and etc.) (Jones, 1986). Jones (1986) concluded that over 40% of infants who are born are born to alcoholic mothers, whom are then diagnosed with FAS. However, it is possible for doctors to reduce the chances of children developing FAS and other FASDs through preventive forms of treatment. The majority of times children are more susceptible to developing FASD due to the doctors inability to clearly identify the expecting mothers level of drinking (Bakhireva & Savage, 2011). If physicians are given the capability to identify expecting mothers regular drinking patterns they can provide her with alternative methods to drinking and reduce the risk of her child develop an FASD (Bakhireva & Savage, 2011). Bakhireva & Savage (2011) found that in identifying expecting mothers drinking levels, physicians would be able to detect the fetus’s risk for developing FASD and other neurobehavioral disorders later in life and prevent it. Bakhireva & Savage (2011) findings suggest that there are biomarkers that are more sensitive to alcohol metabolism, which are capable of detecting the alcohol in tissue types for longer periods of time since the mother last drank. This will then assist physicians in diagnosing fetal alcohol exposure and possible damage to the fetus, which will then help them discern what preventive measures need to be taken. Developing new methods of detection and prevention of FASD is one of the most effective ways to help children avoid severe d evelopmental impairments. Expecting mothers also need to be informed of the damages that alcohol exposure can cause and seek the necessary care. Fetal Exposure to Cocaine Today over 558,000 expecting mothers abuse cocaine (Cohen & Inaba, 2007). The National Survey on Drug Use and Health (NSDUH)(2005) cited by Cohen & Inaba (2007) determined that there was a â€Å"4% rate of cocaine use among women in their first trimester, 3% among those in their second trimester, and 2% among those in their third trimester†. Because of this expecting mothers need to become aware of how cocaine can affect their developing fetus. Typically the stimulants in cocaine affect the fetus’s heart, which leads to blood vessel to constriction. This causes unhealthy elevations of blood pressure in both the mother and fetus (Cohen & Inaba, 2011). For the fetus there life is put at great risk. This is because the mother’s body will stop the flow of any blood, nutrients, or oxygen from reaching the fetus and can cause retarted fetal development or even a stroke within the fetus’s brain (Cohen & Inaba, 2007). This type of constriction can also increase th e chances of the mother having a spontaneous abortion (due to the separation of the placenta from the uterine wall) or a premature delivery (in some cases (typically the third trimester) cocaine can induce labor) (Cohen & Inaba, 2007). Even when an infant makes it through delivery the majority of them suffer from severe withdrawal symptoms. Signs of withdrawal typically consist of: (1) extreme agitation and irritability, (2) hyperactive movement and high respiratory rates, (3) seizures and tremors, and (4) uncontrollable sweating and crying (Cohen & Inaba, 2007). Although physical deformities are common amongst the majority of substances infants are exposed do during utero, cocaine has been found to cause the most damage neurologically. Typically children exposed to cocaine show an increase in â€Å"neurobehavioral disorganization, irritability, and poor language development† (Cohen & Inaba, 2007). In fact researchers Brown, Bakeman, Coles, Sexson, & Demi (1998) studied the effects of cocaine and alcohol exposure during utero on mother’s newborn infant’s and how it affected their birth weight, length, ponderal index, and irritability levels. Researchers found that exposed infants showed an increase in fetal growth deficits, infant orientation, and irritability and a decrease in respiratory rate and proper motor development (only affected by cocaine exposure) (Brown, Bakeman, Coles, Sexson, & Demi, 1998). Cocaine exposure clearly has a severe effect on fetal development. Therefore it is essential that preventive techniques be discussed and reviewed for expecting mothers who are using. Just like alcohol use, there are methods to testing expecting mothers for cocaine use. The most commonly used methods are urine toxicology and serum toxicology, which helps detect â€Å"metabolite benzoylecgonine† (substance found in cocaine) from 72 hours to two weeks after the mother has used (Bhuvaneswar, 2008). In the majority of states today it is mandatory for expecting mothers to be routinely screened for drug use during prenatal doctor visits. In some states a positive test before delivery results in the arrest and incarceration of the expecting mother (Bhuvaneswar, 2008). Most health care providers, however, have argued that women should be given proper drug counseling, confidential screening, and referral for treatment and case management rather than criminal penalties (Bhuvaneswar, 2008). That way expecting mothers can receive the necessary treatment to help make sure the fetus is not harmed anymore than it already has. Essentially when it comes to cocaine use, expecting mothers, and what preventive measures to take, proper screening and treatment are most effective in making sure a fetus develops properly and is born healthy. Fetal Exposure to Opioids Opioids are the most common substance used by expecting mothers. Heroin and methadone are the two most abused. It is assumed that each year there are over 7000 opiate-exposed babies being born (Bhuvaneswar, 2008). Typically expecting mothers will continue to use opioids throughout their pregnancy. When expecting mothers use opioids it usually takes less than one hour for the substance to reach the placental barrier. After only 6 hours it is common for not only the mother to experience withdrawal symptoms, but her fetus as well (Bhuvaneswar, 2008). As the mother goes through withdrawal the substance epinephrine may increase in the amniotic sacks fluid, which could cause severe damage to the growing fetus (Bhuvaneswar, 2008). Continued use of opioids throughout a pregnancy usually results in the following: (1) fetal growth retardation, (2) premature abruption of the placenta (which leads to premature delivery, spontaneous abortion, miscarriage, or stillbirth), (3) neurobehavioral abnor malities (i.e. abnormal sleep patterns, behavioral problems, poor motor skills, learning disorders, mental retardation, and others), and (4) greater risk for Sudden Infant Death Syndrome (SIDS) (Cohen & Inaba, 2007). In some cases opioid use can cause the infant to experience Neonatal Abstinence Syndrome (NAS) (severe withdrawal after delivery). It can last from 48-72 hours to days, weeks, or even months. It all depends on how much the mother exposed her infant to during utero (Cohen & Inaba, 2007). Symptoms of NAS are much more intense than an infant who may be withdrawing from nicotine or marijuana. When an infant is experiencing NAS they will exhibit the following characterisitcs: (1) extreme hyperactivity, agitation and irritability, (2) high-pitched crying, sweating and tremors, (3) intense muscle spasms, (4) restlessness, (5) increased respiration, (6) vomiting, and diarrhea, and (7) severe seizures, which may lead to death (Cohen & Inaba, 2007). If an infant successfully makes is through withdrawal they are capable of being cleaned of any opioid substance that they were exposed to during utero. Just as there are preventive measures for expecting mothers using alcohol or cocaine, there are preventive measures for mothers who use opiates. Today there are several clinical options for management of opiate use during pregnancy: (1) methadone maintenance, (2) the use of buprenorphine and naltrexone, and (3) opioid detoxification (usually done during the mothers second trimester) (Bhuvaneswar, 2008). Although not all risks to the fetus are eliminated with these types of treatment, the use of methadone, buprenorphine and naltrexone does help reduce the amount of spontaneous abortions and transmission of infections that opiate use usually causes (Bhuvaneswar, 2008). The main purpose of these methods is to essentially stop the mother from using altogether and reduce the chances of NAS when the child is born. If the expecting mother is able to detox and stop opiate use the chances of her child being born healthy is greater. Fetal Exposure to Nicotine There are over 2,000 different compounds that can be identified in one cigarette. Regardless of the many unhealthy substances contained in one cigarette, more than 17% of expecting mothers still smoke throughout their pregnancy (Cohen & Inaba, 2007). Cigarettes contain both nicotine and carbon dioxide. Which are two known compounds capable of crossing over the placental barrier during pregnancy and reducing the fetuses supply of oxygen (Cohen & Inaba, 2007). However, restriction of oxygen to the fetus is only one concern. The expecting mother is also increasing her chances of having a premature delivery, miscarriage, or even a stillbirth. Nevertheless, premature births are the most common occurrences among expecting mothers who smoke (Cohen & Inaba, 2007). Infants who are born prematurely are abnormally small â€Å"on average they weigh, 7 ounces less, are 1.4 centimeters shorter, and have a smaller head circumference compared with babies of nonsmoking and non-drug-abusing mothersâ €  (Cohen & Inaba, 2007). Although less common than exposure to other drug substances, smoking can cause a variety of defects. The most typical are as follows: (1) congenital abnormalities (heart malformation, cleft lip/palate), (2) brain damage and nerve damage, (3) depressed immune system, (4) poor cognitive abilities (i.e. learning disabilities), and (5) increase chance of Sudden Infant Death Syndrome (SIDS) (Cohen & Inaba, 2007). Typically though cognitive abilities are most likely to be impaired. In fact researcher Karen Law (2003) studied the effects nicotine exposure can have on a fetuses neurobehavioral development after birth. Law (2003) found that the infants who were exposed to nicotine during utero were more excitable and hypertonic and showed higher stress levels and abstinence signs when born. Shea & Steiners (2008) research on the effects of prenatal exposure to nicotine found the same results as Law (2003). Shea and Steiners (2008) findings indicated that the nicotine from cigarettes directly affects the fetus’s placental vasculature. This can lead to cognitive and learning deficits in childhood and adolescents, increased risk of hypoxia induced brain damage, and an increased chance of perinatal mortality or even sudden infant death syndrome (SIDS) (Shea & Steiner, 2008). Law (2003) and Shea and Steiner (2008) suggest that pregnant women need to avoid smoking during pregnancy in order to prevent serious impairments in neurodevelopment of their fetus. To the majority of expecting mothers exposing their fetuses to nicotine seems much less irresponsible than if they were to expose them to a substance like cocaine or heroine. However, research shows that smoking can and will affect expecting mothers children. May be not to the same extent as cocaine or heroine, but to a point where your child will still be incapable of proper development. Fetal Exposure to Cannabis Sativa (marijuana) It is said that over 17% of expecting mothers smoke marijuana (Cohen & Inaba, 2007). Some mothers condone their use of marijuana throughout their pregnancy, because it is said to help reduce pain when labor occurs. Many people would suggest that the majority of studies today imply that the use of marijuana during pregnancy causes only minimal side effects to the overall health of a fetus. Therefore, it is acceptable for mothers to use when pregnant. This is not true. Jutras-Aswad, DiNieri, Harkany, & Hurd, (2009) studied the use of marijuana during pregnancy and the affects it can have on the fetus during utero and after birth. Researchers did this by examining the endocannabinoid (eCB) system and the effects it has on children’s behavior and mental health. Research indicated that eCB has a direct effect on the fetuses’ central nervous systems (CNS) patterning by influencing migration, survival, and differentiation of committed neurons. Researchers discovered that eCB affects the neuronal systems that control mood, cognition, reward, and goal directed behavior. This then effects the fetus’s brain development, which leaves them vulnerable to severe behavioral problems and neuropsychiatric disorders more so than others after birth. After reviewing this research it obvious that marijuana can have a direct impact on the fetuses brain development (Jutras-Aswad, DiNieri, Harkany, & Hurd, 2009). Although the affects may not be apparent during a mother’s pregnancy, they are clearly identified later in infancy and childhood. In fact previous research conducted by Richardson, Day, and Goldschmidt (1995) studied the effects of marijuana use during pregnancy. Children who had been exposed to marijuana during utero were assessed repeatedly during the neonatal period until the age of six. Results indicated that prenatal marijuana exposure became apparent around ages four through six. There was an increase in childre n’s behavioral problems (i.e. affected their goal directed behavior, planning, organized search, and impulse control) and a decrease in their performance on visual perceptual tasks, language comprehension, sustained attention, and memory (Cohen & Inaba, 2007). These findings support the theory that marijuana use during pregnancy can have an effect on children’s neurological development (Cohen & Inaba, 2007). So like many other drugs, it is strongly recommended that expecting mothers avoid the use of marijuana. Identifying & Providing Treatment for Substance Abuse in Expecting Mothers After reviewing the effects of alcohol and other drug substances on fetal development it is evident that expecting mothers need to abstain from substance use throughout their pregnancies. Rassool & Villar-Luis (2006) further support this assumption through their review on the effects that substance abuse can have on fetal development. Researchers identified several drug substances (i.e. alcohol, cocaine, opioids, nicotine, and cannabis) and found direct causes each substance has on expecting mother’s fetuses after birth. Researchers discovered the following primary concerns for each substance: (1) alcohol use can lead to fetal alcohol syndrome an d possible miscarriage of the fetus, (2) cocaine, opioids, and nicotine can cause perinatal complications and unwanted abortions, and (3) cannabis sativa (marijuana) can cause perinatal complications (miscarriage), intrauterine growth restrictions, abruption placentae, pre-term deliveries, and neurobehavioral abnormalities. After reviewing each substance and potential damage it can cause the Rassool & Villar-Luis (2006) suggest that different measures of prevention should be taken by expecting mothers to reduce the risk of harming their fetus. There are forms of prevention and treatment to help expecting mothers reduce the risk of harming their fetus’s development. The most efficient way to help expecting mothers find treatment is through using the necessary screening techniques in which physicians can identify alcohol or substance abuse (Cohen & Inaba, 2007). By doing so physicians can provide proper intervention, treatment, and preventive services to substance abusing mothers (Cohen & Inaba, 2007). Typically expecting mothers who use drugs during pregnancy are classified as â€Å"AODs† (i.e. â€Å"pregnant women who use alcohol and other drugs†). The most commonly used instrument to identify AODs was developed by Dr. Ira Chasnoff (Cohen & Inaba, 2007). It is known as the 4Ps Plus Instrument, which consists of four basic questions that essentially help identify AODs (Cohen & Inaba,2007). The questions are listed below: 1.) Did either of your parents ever have a problem with alcohol or drugs? 2.) Does your partner have problem with alcohol or drugs? 3.) Have you ever drunk beer, wine, or liquor? 4.) In the month before you knew you were pregnant, how many cigarettes did you smoke? In the month before you knew you were pregnant, how much beer, wine, or liquor did you drink? Once women with AOD are identified they can properly be treated in order to protect the mother and the growing fetus. Treatment may not seem effective once the expecting mother has already exposed her fetus to alcohol or other substances, but that is not true. Although the fetus is still at risk for some developmental damage it is still possible to stop any more from occurring if the mother stops using. Researchers Mayet, Morgan, MaCormack, & Strang (2008) have support for this assumption through their assessment of mothers who exposed their children to substances during utero and then proceeded to attended perinatal addiction treatment throughout the remainder of their pregnancy. Researchers administered a cross-sectional audit of health-care records in order to compare the outcomes of women in 2002â€⠀œ2005 with data from 1989–1991 and the local (i.e. non-substance abusing women) maternity population in 2004–2005. Research found that less newborns required treatment for neonatal abstinence syndrome (NAS) in 2002–2005 compared to 1989–1991. However, there were higher rates of miscarriages, low birth weights, and premature infants, compared to the local maternity population between 2004–2004. Findings suggest that perinatal addictions treatment can be extremely beneficial to mothers abusing substances. It lowers the risk of the mother harming her fetus by reducing the amount of drug substances she exposes her fetus to. It also suggests that addiction treatments are becoming more evolved and are better servicing people compared to 1989-1991. In helping women become abstinent from substance use during their pregnancy it will help both them and their child live a healthier life during and after birth. Conclusion In conclusion, it is clear that alcohol and substance use is an increasing problem for the population of expecting mothers. As discussed in the paper the majority of expecting mothers are exposing their fetuses to the followings substances: (1) alcohol, (2) cocaine, (3) opioids, (4) cigarettes (nicotine), and (5) cannabis sativa (marijuana). Expecting mothers are unaware that they are putting their growing fetus at risk for severe developmental deformities and impairments (i.e. physical, mental, and behavioral) due to such exposure in utero and after birth. Not only that, but mothers are increasing their chances of premature deliveries, miscarriages, spontaneous abortions, and stillbirths. Even if their child makes it through delivery the majority of them experience severe Neonatal Abstinence Syndrome (NAS), Sudden Infant Death Syndrome (SIDS), or are born with disorders like fetal alcohol syndrome (FAS) (Cohen & Inaba, 2007). However, there are preventive measures that can be taken to avoid substance-abusing mothers risking their fetus’s developmental health. If physicians are able to identify expecting mothers substance use they will be able to give them proper a treatment and care. This will help reduce the chances of the mother impairing her fetus’s development any further (Cohen & Inaba, 2007). Mothers will also be able to get â€Å"clean† and raise their child in a healthy environment. Although it may seem impossible, there are ways to help expecting mothers properly nourish their child back to health even when it comes to substance abuse. References Bakhireva, L. N., & Savage, D. D. (2011). Focus on: Biomarkers of fetal alcohol exposure and fetal alcohol effects. Alcohol Research & Health, 34(1), 56-63. Bhuvaneswar, Chaya (2008). Cocaine & opioid use during pregnancy: Prevalence & Management. Prime Care Companion J. Clinical Psychiatry. 10(1): 59–65. Brown, J. V., Bakeman, R., Coles, C. D., Sexson, W. R., & Demi, A. S. (1998). Maternal drug use during pregnancy: Are preterm and full-term infants affected differently?. Developmental Psychology, 34(3), 540-554. doi:10.1037/0012-1649.34.3.540 Cohen, W.E., & Inaba, D.S. (2007). Uppers, downers, all arounders (6th ed.). Medford, OR: CNS publications, Inc. Feldman, R. S. (2011). Development across the life span (6th ed.). Upper Saddle River, NJ: Pearson/Prentice Hall. ISBN:0558937071. Jones, K.L. (1986). Fetal alcohol syndrome. Department of Pediatrics; 8:122-126. Jutras-Aswad, D., DiNieri, J. A., Harkany, T., & Hurd, Y. L. (2009). Neurobiological consequences of maternal canna bis on human fetal development and its neuropsychiatric outcome. European Archives Of Psychiatry And Clinical Neuroscience, 259(7), 395-412. doi:10.1007/s00406-009-0027-z Law, K.L. (2003). Smoking during pregnancy and newborn neurobehavior. Pediatrics Vol. 111: 1318-1323. Mayet, S., Groshkova, T., Morgan, L., MacCormack, T., & Strang, J. (2008). Drugs and pregnancy—Outcomes of women engaged with a specialist perinatal outreach addictions service. Drug And Alcohol Review, 27(5), 497-503. doi:10.1080/09595230802245261 Rassool, G., & Villar-Luà ­s, M. M. (2006). Reproductive risks of alcohol and illicit drugs: An overview. Journal Of Addictions Nursing, 17(4), 211-213. doi:10.1080/10884600600995242 Shea, A. K., & Steiner, M. (2008). Cigarette smoking during pregnancy. Nicotine & Tobacco Research, 10(2), 267-278. doi:10.1080/14622200701825908 The Office of Children’s Health Protection (2003).Critical periods in development. ICF Consulting, Inc.

Mode Of Design Art Therapy - 967 Words

Mode of Design Although art therapy is a new practice in psychotherapy, art has always been a form of communication since the beginning of the human history. Evidence is found from the finding 40,000 years ago during the Aurignacian period, on a cave painting found in EL Castillo Cave, Cantabria Spain. Since then, art had become an instrument for self-expression and symbolism. However, it was not until the 1940’s that the therapeutic use of art was then define and develop into a distinct discipline. Though this discipline had only arose independently in America and Europe. Andrew Hill was the first person to refer the therapeutic application of art as therapy in England. The question of â€Å"Is Art Therapeutic?† came into my mind after reading the book â€Å"Art as Therapy† by Alain De Botton. Alain suggested that every piece of art has a purpose, and he had classified the artwork in to seven categories by their purpose to the audience: Remembering, Hope, Sorrow, Rebalancing, Growth and Appreciation. Whilst taking this in mind, I questioned about if the existence in art therapy under psychotherapy that â€Å"Is Art Therapeutic?† Thus, with the recent trend in adult coloring book had brought my attention in questioning â€Å"Why are adult coloring book so popular?† â€Å"Do they really de-stress you?† â€Å"If so, why? How?† which initially I started to research into art therapy and the aspect of questioning â€Å"Is Art therapeutic?† Design rational To me I always wonder about the effect of art beingShow MoreRelatedThe Effects Of Animal Assisted Therapy On The Well Being Of Residents At A Long Term Care1285 Words   |  6 PagesThe Effects of â€Å"Animal-assisted Therapy† on the well-being of Residents at a Long-Term Care. 999735559 University of Toronto PSYB01 Professor Nagy July 20, 2015 This study was inspired by â€Å"Ace† the therapy dog Abstract The rationale for this study is developed through personal experience of the researcher at Baycrest and review of past and current research relating to this study. This study looks upon the effect of animal-assisted therapy (AAT) on the psychophysical well-beingRead MoreThe Great Gatsby By F. Scott Fitzgerald1651 Words   |  7 Pages Modernism is a philosophical movement that came along with cultural trends and changes. It is an international movement in European and American art, literature, and culture. It started from wide scale and far reaching transformations in Western society in the late 19th and early 20th centuries. World War 1 is often seen as a starting event of Modernism. The devastation of Western Civilization in the great war accelerated and strengthened Modernist thinking. Modernism was the most influentialRead MoreDefinition of Research1639 Words   |  7 Pagesstatement focused on a more localized problem while explaining how the research product could benefit a national audience can be successful.   * TRANSPORTATION MODE OR TOPIC - If your research focuses on a specific mode of transportation, your decision about the funding source may be simplified, because many research programs focus on such modes. If, on the other hand, your research need focuses on policy, administration, or other non-modal transportation issues, the appropriate program may be less clearRead MoreArt Therapy Essay2790 Words   |  12 PagesWhat Is Art Therapy? Most forms of therapy are centered on verbal communication. Art therapy, however, breaks that mold and introduces a more creative means of both communicating ideas and learning to grow. The American Art Therapy Association defines art therapy as: Art therapy is a mental health profession in which clients, facilitated by the art therapist, use art media, the creative process, and the resulting artwork to explore their feelings, reconcile emotional conflicts, foster self-awarenessRead MoreEssay on The Impact of Living with Cystic Fibrosis1212 Words   |  5 Pagesmulti-disciplinary approach with frequent clinical visits, physiotherapy to improve lung function and nutritional therapy that prevents malnutrition of pancreatic insufficiency and manages CF-related diabetes (Colomboa and Littlewood 2011, Cystic Fibrosis Trust 2011, Kerem et al. 2005) CF multi-disciplinary team also undertakes clinical research of the condition, where new treatment and therapies are constantly exploring, becoming more effective. In the clinic whilst the patients wait to be seen by medicalRead MoreA Brief Note On Who S Afraid Of The Frankenstein Monster?3451 Words   |  14 Pagesrendering our bodies not so much obsolete as outside the scope of the relevant discussion of what a body is for the modern human being. Without using the term â€Å"transhumanism† too lightly, this essay will attempt to address the changes in attitudes towards design of space that accommodates for these new augmented bodies of the 21st century. More often than not, even the most superficial examination into the subject of transhumanism will introduce the term â€Å"cyborg† into the discussion. This child of organic/machinicRead MoreHuman Resource Management in Mang Inasal6084 Words   |  25 Pagesmore satisfying modes of treatment and care than are provided by mainline Western models of health care. It signals a need to attend to what alternative medicine offers patients. A focus on the mind-body relationship, elusive yet central to human nature, is appropriately a research subject for both scientific medicine and medical myths and quack practices (1999).   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   With time constraints dictated by managed care initiatives, client demands, and movement toward brief therapy, growing numberRead MoreAulani Marketing Report3654 Words   |  15 PagesImagineers worked together with Hawaiian locals to create Aulani, made it a perfect and enjoyable vacation destination for family with all ages and different sizes. Guests can celebrate Hawaiian culture, traditions and history from contemporary Hawaiian art featured throughout the Resort, to myriad recreational activities, culinary programs, excursions and more, being immersed in the legends of the island and experiencing the true enchantment of Hawaii. The needs of guests are promised to always be assuredRead MorePhenomenological: Qualitative Research and Research Methodology9542 Words   |  39 Pagesphenomena such as psychotherapeutic change are particularly evident when attempting to examine psychotherapeutic interventions such as ‘art therapyâ₠¬â„¢. Art therapy involves the use of art images as symbolic communications in therapy. These images may reveal unconscious meaning systems that are inexpressible in words. Although an emotional experience in art therapy may be profound and life changing, it is not always immediately accessible or recognisable to the client on a conscious or cognitive levelRead MoreThe Importance of Philosophy to Engineering8110 Words   |  33 Pagesmachines, products, systems, and processes for the benefit of humankind.6 The upshot of philosophical attacks would be to replace this traditional self-understanding with one that might read more like the following: Engineering is the scientific art by which a particular group of human beings destroys nature and pollutes the world in ways that are useless or harmful to human life.7 Insofar as they have become aware of such attacks - and to understand and defend against them - philosophy is crucial