Saturday, January 25, 2020
Accurate Drainage Network Extraction From Satellite Imagery
Accurate Drainage Network Extraction From Satellite Imagery Ferdousi Khatun 1, Pratikshya Sharma1 Computer Science and Engineering Department, Sikkim Manipal Institute of Technology Majhitar, Sikkim Abstract. The extraction of the drainage hydrographical network is a key for various types of study such as hydrological analysis, geomorphology, environmental science, terrain analysis and still a research topic in the field of GIS. Drainage network are extracted through satellite image (e.g. Digital Elevation Model (DEM)) processing, contour map processing and raster map processing. Due to the advances in satellite imagery high resolution DEM are captured by many satellite recently. The DEMs is advantageous over toposheet because it provide consistent data with global coverage. Accurate drainage extraction from DEMs is used for hydrological analysis, morphometric analysis, terrain analysis and many other area as DEM provide the fastest path to extract feature. This paper provides the evolution of satellite imagery and accurate drainage network extraction process for various application namely geomorphometric analysis, hydrologic analysis, terrain analysis etc. also describe the ste ps involved to extract drainage stream network from DEM an up-to-date process. Keywords: DEM, ASTER-GDEM, SRTM, Cartosat 1 DEM 1 Introduction Water is the main and most important component on earth surface and drainage pattern is the essential hydrologic, geomorphologic element for analysis. Drainage pattern is a network that is generally formed by the waterbodies, lakes, streams, and rivers in a particular drainage basin which is also known as drainage system or river system. It has many application area like hydrologic modelling of micro watershed, groundwater prospect zone mapping, geomorphometric parameter analysis, water resource planning and management, flood hazard prediction and mitigation, river pattern change detection ,irrigation management etc. field. But drainage pattern extraction on flat surface and less complex terrain is still in research topic. The traditional process of generating the drainage map is from toposheet or contour map that depict the large scale detail of a geographic space. Generally it contains five layer of information, river and waterbody as blue color, road as red, forest as green, conto ur as brown and a black color for text feature. However, channel networks extraction from topo maps require tedious time, and cartography expert needed to provide subjective decision. In brief the steps to extract drainage from contour map is aerial element removal, linear element extraction to produce linear feature map, thinning, dilation, color segmentation and generate segmented layer map [1]. But generation of separate layer map has a limitation it will only work on digital contour map or historical map or high quality toposheet because poor quality toposheet suffer from false color aliasing and mixed color problem. Also available toposheet are old publication 10-20 years back. River pattern also change their position in some places due to landslide, flood or many natural phenomenas thus accurate drainage network is not provided by toposheet [2]. The satellites are capable of producing advanced digital elevation data(e.g., Shuttle Radar Topographic Mission -SRTM-, Interferometr ic Synthetic Aperture Radar for Elevation -IFSARE-) , Advanced Spaceborne Thermal Emission and Reflection Radiometer Global Digital Elevation Model(ASTER GDEM V2), Cartosat -1 (Cartosat DEM 1.0), Synthetic Aperture Radar(SAR) etc. so analysis became easier. Early satellite technology does not able to capture the DEM directly so for hydrologic and geomorphologic analysis DEM was generated from various satellite like QUICK BIRD,IKONOS, Landsat tm etc.[3].The most widely used satellite imagery ASTER-GDEM,SRTM-DEM etc. are freely provided by USGS(http://earthexplorer.usgs.gov/) site with 1,3 arc second spatial resolution and Cartosat-DEM is provided by ISRO(http://bhuvan.nrsc.gov.in/bhuvan_links.php) and used for analyzing the data for various study. The above mention satellite has their specific configuration and suitable for either mountain area, flat surface, medium complex terrain area for accurate river network extraction. The accuracy of ASTER GDEM SRTM -DEM and is almost same [4] . In some cases Cartosat 1 DEM better sound than SRTM DEM for extracting drainage. DEMs with higher resolution provide detailed drainage networks that has greater impact on the drainage map analysis as statistical values become lower when resolution of DEM changes from fine to rude [5]. 1.1 Evaluation of Satellite Imagery for Drainage Extraction DEM plays a crucial role for generating drainage network. In past years the DEMs were available at a global coverage in a 1 KM resolution like GTOPO-30(Global Topography in 30 arc sec).After that Shuttle SRTM ,version 4,C-band DEM of 90m resolution and the ASTER (version 2, 30 m resolution) was launched that provide better resolution which solves the problem regarding spatial resolution. The hydrology analysis became easier in INDIA after launch of Cartosat DEM (version 1) at 30 m in 2011.These data are openly accessible and easily downloaded from USGS and ISRO website. Various purchased stereo-images from Cartosat 1,landsat 7 ETM+,QuickBird,IKONOS,SPOT,SAR are used for generating the DEM using software and can be applied for hydrologic analysis[6],[7],[8],[9][10].Lot of studies is going on hydrological analysis and geomorphometric analysis from DEMs. In India most research is done best on DEM for river basin analysis, estimation of soil loss, water resource evaluation and topographi c characterization[11],[12],[13],[14].The high resolution DEMs provide finer extraction of land surface component like drainage network, slope facets and higher accuracy than a toposheet.The morphometric parameter are heavily depend upon the scale of the feature extrcated.Research is going on which satellite provided imagery is relevant for accurately extract the stream network in various surface area like mountain, flat surface, less complex terrain area.In some cases SRTM is very good for drainage analysis[15],[16]. For accuracy assessment the complete elevation criterion is more focused and less importance given to how the various morphometric variables that are derived, vary from one dataset to the other, as well as how their prepared maps differ. 1.2 Importance of Drainage Network in GIS Drainage means the deportation of surplus water from a given place. In geomorphology and hydrology a Drainage pattern is a network that is generally formed by the waterbodies, lakes, streams, and rivers in a particular drainage basin. They are depend on topography of the land. The shape, size, number of the drainage basins found in an area vary with the topography. A drainage system are of six different type namely Dendritic Drainage, Parallel Drainage, Trellis Drainage, Radial Drainage, and Rectangular Drainage and Deranged Drainage. In hydrological studies, geomorphological analysis DEMs are primary element for catchment boundary, delineation of watershed boundary, estimation of various catchment parameters such as slope, contours, aspects, etc. and morphometric attribute like no of tributaries, stream order, stream length, bifurcation ratio, relief ratio etc. By examining various hydrological and morphological parameter the irrigation management department supply water in dry weat her for agriculture crop production, water resource management department, flood hazard zone prediction and mitigation department, drainage management department are being very beneficial in recent year. 1.3 Review of Drainage Extraction Methods The mesh network of attached stream pertaining to a land is the river pattern or drainage pattern. These network formation is mainly depend on the morphological aspect of the terrain i.e. slope, varied resistance of rocks and geology and topology of the land. When a DEM is consider for drainage network extraction, the main steps are (1)fill depression,(2)flow direction,(3)flow accumulation and (4)stream network generation. A DEM is the representation of land elevation in digital form that are mainly stored as a rectangular matrix with integer or floating-point values. Among various algorithm the DEM pixels computation is based on D8 method that is first introduced by OCallaghan and Mark (1984)[17].But this algorithm has some derelictions. As per D8 algorithm single flow direction is calculated by comparing the elevation of its 8 neighboring cells where the cells with higher elevations flow towards adjacent cells with lower elevation as the water flow from high elevation to low due to gravity. However parallel flow lines generation in flat areas is the restriction of formation of concentrated channel flow and is a vital limitation of D8 method. The most important problem while delineating stream network using DEM is the presence of sinks, for flat area and depressions it is difficult to set the ends of stream network and the flow direction assignment in individual cells. Thus for accurate extraction the sinks are removed from DEM in the first step. In 1988 an new developed algorithm is introduced by Jensen and Domingue to remove the sinks prior to the flow directions calculation by increasing the elevation value of nodes within each depression pixel to the level of the lowest node on the depression boundary. Next A new method to calculate the upslope areas using rectangular grid DEM and representation of flow directions is introduced known as D-infinity where the direction of flow is not restricted to check its 8 adjacent cells[18].Some research is also done based on multipath flow direction but it is time consuming and more manual effort required for calculation[19][20].To improve the existing method a path based methods to resolve the nondispersive drainage flow direction in grid based DEM is introduced. It improved the D8 a few extent but fails to eliminate local level bias [21]. Over the past 20 years, many improved method based on routing flow through pits and flats have been introduced. The technology developed and the drainage is extracted bas ed on heuristic information. An innovative algorithm is presented by W. Yang and co -authors in 2010 based on heuristic information that accurate extract the drainage network but fails to detect unrealistic parallel drainage lines, unreal drainage lines and spurious terrain features and has a closer match with the existing pattern [22]. More recently in 2012 Mr.Magalhaes have proposed a very simple and innovative approach where the DEM is considered as island and the outside water level raises step by step until the whole DEM is submerged. So gradually it flood the cells of the DEM, next filling the depression and spread it on flat to flow towards a neighbor if that neighbor has a assigned direction of flow that does not point back to the early visited cell. In such manner, the flow direction assignments grow iteratively into flat surfaces from areas. After that flow direction is calculated and accumulation flow is generated that is the final step of stream network generation or dra inage network computation [23].In 2013 a flooding algorithm is proposed by Antonio et.al to extract the drainage on flat surface and able to works on unprocessed DEMs avoiding the problems caused by flats and pits, able to extract watercourses with a width greater than one cell and identify fluvial landforms such as marshes, lakes or river islands that are not directly managed by most of previous solutions[24]. 1.4 Literature Survey Research is going on which satellite imagery provide the accurate result for drainage extraction. DEMs provide us a digital representation of the continuous land surface. Advanced remote sensing technologies (e.g. SRTM, ASTER-GDEM, Cartosat 1.DEM etc.) are capable of generating new elevation data and freely availbale.High resolution DEM provide accurate drainage extraction. During past 20 years many satellite generated imagery is used to extract the drainage pattern and examined on various terrain like mountain area, medium complex terrain and flat surface. But the accurate extraction which is very essential for hydrologic and morphological analysis is still lacking some feature.Gajalakshmi K. and Anantharama V. recently analyses the accuracy between Cartosat 1 DEM and SRTM DEM.As per experiment in gradually undulating terrain, elevation values of Cartosat-DEM are lower than SRTM-DEM. whereas the stream parameter values of Cartosat-DEM are higher than SRTM-DEM[25]. Sarra Ouerghi et.a l. comparers the ASTER-GDEM and SRTM DEM for drainage extraction. The analysis found that ASTER GDEM is more pronounced in flat and less complex terrain [26]. Sample drainage network represented in fig 1.4. Fig 1.4. Stream networks derived from Topo DEM, ASTER GDEM, and SRTM [26] Table 1. Summary of Survey SL No Title Description Remarks 1 Water Body Detection and Delineation with Landsat 5 TM Data. Landsat 5 TM + imagery used to map river line waterbody and compared with Aerial image. Manual classification of Landsat imagery and Aerial imagery. Error in image registration occur. 2 DSM generation and evaluation from QuickBird stereo imagery with 3D physical modeling. QuickBird stereo imagery is used for generating the DEM and 5m contour generation and drainage pattern extraction. Manual process to prepare DEM Automatic extraction missing. Resolution high but time consuming process. 3 Cartosat-1 derived DEM (CartoDEM)towards Parameter Estimation of Microwatershed and Comparison with ALTM DEM. Cartosat-1 and ALTM DEM is compared for drainage pattern extraction and Microwatersheds parameter analysis in MadhyaPrades. Suitable for Mountain area but not suitable for plain area.Saveral steps required to process the DEM and extract the data. 4 Assessment of extraction drainage pattern from topographic maps based on photogrammetry Aerial Image and four toposheet is processed for drainage mapping and compare the both. Satellite imagery accurately extract drainage, some drainage is missing in toposheet. Several image processing steps required to extract pattern from satellite image. 5 A GIS based approach in drainage morphometric analysis of Kanhar River Basin, India. ASTER-DEM,Landsat ETM+,SOI toposheet for morphometric analysis All morphometric parameter has not been introduced. 2. Conclusion The extraction of drainage networks can be done form of contour map, raster map or DEMs.The satellite provided DEMs are very efficient to extract the drainage network in all terrain because the satellite gives the up-to-date changes happen on earth surface like change position of river network, new waterbody etc. feature is capture via highly sensitive sensor present in satellite. Thus less time required to extract the pattern from satellite provided DEM.Survey found that automatic extraction is accurately extract the pattern rather than topographic map with less error. The Cartosat 1 DEM is very useful for mountain area, SRTM and ASTER-GDEM is suitable for medium and flat surface where terrain is less complex. References: Tiange Liu Qiguang Miao Pengfei Xu Jianfeng Song Yining Quan. : Color topographical map segmentation Algorithm based on linear element eatures. Springer Journal,Multimedia Tools and Application, Volume 75, Issue 10, (2016)5417-5438 Samih B. Al Rawashdeh. : Assessment of extraction drainage pattern from topographic maps based on photogrammetry. Springer, Arabian Journal of Geosciences , Volume 6, Issue 12, (2013) 4873-4880 T. Toutin. : DSM generation and evaluation from QuickBird stereo imagery with 3D physical modelling. International Journal of Remote Sensing, VOL. 25, NO. 22, (2004)5181-5193 Sarra Ouerghi, Ranya Fadlalla Abdalla ELsheikh, Hammadi Achour, Samir Bouazi : Evaluation and Validation of Recent Freely-Available ASTER-GDEM V.2, SRTM V.4.1 and the DEM Derived from Topographical Map over SW Grombalia (Test Area) in North East of Tunisia. Springer Paper, Journal of Geographic Information System, 7, (2015) 266-279 Gajalakshmi K. and Anantharama V. : Comparative Study of Cartosat-DEM and SRTM-DEM on Elevation Data and Terrain Elements. Cloud Publications International Journal of Advanced Remote Sensing and GIS. Volume 4, Issue 1, (2015) 1361-1366 Toutin T, Chenier R, Carbonneau Y 3D geometric modelling of Ikonos Geo images. In: Proceedings of ISPRS joint workshop .High resolution from Space, Hannover(2001). Toutin T.: DEM from stereo Landsat 7 ETM+ data over high relief areas. Int J Remote Sens 23(10) (2002)2133-2139 Toutin T. : DSM generation and evaluation from QuickBird stereo imagery with 3D physical modelling. Int J Remote Sens 25(22) (2004)5181-5192. Poli D, Li Z, Gruen. : A SPOT-5/HRS stereo images orientation and automated DSM generation. Int Arch Photogramm Remote Sens 35(B1) (2002)130-135 Hirano A, Welch R, Lang H.: Mapping from ASTER stereo image data: DEM validation and accuracy assessment. ISPRS J Photogramm Remote Sens 57 (2003)356-370 Chopra R, Dhiman RD, Sharma PK.: Morphometric analysis of subwatersheds in Gurdaspur District Punjab using remote sensing and GIS techniques. J Indian Soc Remote Sens 33 (2005)531-539. Kale VS, Shejwalkar N.: Western Ghat escarpment evolution in the Deccan Basalt Province: geomorphic observations based on DEM analysis. J Geol Soc India 70 (2007)459-473. Sreedevi PD, Owais S, Khan HH, Ahmed S.: Morphometric analysis of a watershed of South India using SRTM Data and GIS. J Geol Soc India 73 (2009) 543-552 Ghosh P, Sinha S, Misra A.: Morphometric properties of the trans-Himalayan river catchments: clues towards a relative chronology of orogenwide drainage integration. Geomorphology 233 (2015) 127-141 Gorokhovich Y, Voustianiouk A.: Accuracy assessment of the processed- SRTM based elevation data by CGIAR using field data from USA and Thailand and its relation to the terrain characteristics. Remote Sens Environ 104 (2006) 409-415 Weydahl DJ, Sagstuen J, Dick OB, Ronning H.: SRTM DEM accuracy over vegetated areas in Norway. Int J Remote Sens 28(16) (2007) 3513-3527 OCallaghan J, Mark DM.: The extraction of drainage networks from digital elevation data. Compute Vis Graph Image Process 28(3) (1984) 323-344 David G. Tarboron.: A new method for the determination of flow directions and upslope areas in grid digital elevation models, WATER RESOURCES RESEARCH, VOL. 33, NO. 2, (1997) 309-319 Zhang Yu, Liu Yong-xue, Chen Zhen-jie. : Multi-flow direction algorithms for extraction drainage network based on digital elevation model. Geospatial Information Science, 6753(2B) (2007) 1-9 Tarboton D G. : A new method for the determination of flow directions and upslope areas in grid digital elevation models [J]. Water Resources Research, , 33(2) (1997) 309-319 Orlandini S, Moretti G, Franchini M, Aldighieri B, Testa B. : Path- based methods for the determination of nondispersive drainage directions in grid-based digital elevation models. Water Resour Res 39(6) (2003) W. Yang1,2, K. Hou1,3, F. Yu2 , Z. Liu4 , and T. Sun1. : A novel algorithm with heuristic information for extracting drainage networks from raster DEMs, Hydrol. Earth Syst. Sci. Discuss., 7, (2010) 441-459 Magalhaes, S.V.G., Andrade, M.V.A., Franklin, W.R., Pena, G.C. : A new method for computing the drainage network based on raising the level of an ocean surrounding the terrain, in: Proceedings of 15th AGILE International Conference on Geographic Information Science, Avignon (France), (2012) 391-407 Antonio Rueda , Josà © M. Noguera , Carmen Martà nez-Cruz.: A flooding algorithm for extracting drainage networks from unprocessed digital elevation models. Computers Geosciences Volume 59, (2013) 116-123 Gajalakshmi K. and Anantharama V.: Comparative Study of Cartosat-DEM and SRTM-DEM on Elevation Data and Terrain Elements. International Journal of Advanced Remote Sensing and GIS, Volume 4, Issue 1, (2015) 1361-1366 Sarra Ouerghi, Ranya Fadlalla Abdalla ELsheikh, Hammadi Achour, Samir Bouazi.: Evaluation and Validation of Recent Freely-Available ASTER-GDEM V.2, SRTM V.4.1 and the DEM Derived from Topographical Map over SW Grombalia (Test Area) in North East of Tunisia.Journal of Geographic Information System, 7, (2015) 266-279
Friday, January 17, 2020
Top 10 Characteristics of schools that are Multicultural
1. The school curriculum incorporates the contributions of many cultural groups and integrates multiple perspectives throughout it. 2. Teachers and administrators are able to deal with questions of race, inter- group relations, and controversial realities on an objective, frank, and professional basis. 3. Differences in academic achievement levels disappear between males and females, dominant and oppressed group members, and upper-middle-class and low-income students. 4. Instructional materials are free of biases, omissions, and stereotypes. 5. The teachers and administrators show respect for the students' first languages and dialects 6. Cultural differences are treated as differences, rather than as deficiencies that must be addressed in compensatory programs. 7. Students are able to use their own cultural resources and voices to develop new skills and to critically explore subject matter. 8. Students learn to recognize and confront inequities in school and society. 9. The composition of the faculty, administration, and other staff accurately reflects the pluralistic composition of the United States. 10. The faculty, administrators, and other staff see themselves as learners enhanced and changed by understanding, affirming, and reflecting cultural diversity. I feel that theses top ten characteristics are list in the correct order from most important to least important. Even though I do not feel there should be something that is not as important when it comes to this subject. I think that each of all ten is just as important. My first important is the school making sure that they incorporate different kinds of cultural groups into their class room this makes it so that all the student know what their cultural believes are they are all included in the class. I also feel it is important that teachers are able to deal with questions and have an understanding of how to answer the question about the different cultural. Gollnick, D. , & Chinn, P. (2006). Multicultural education in a pluralistic society. Upper Saddle River, NJ: Pearson Merrill Prentice Hall
Thursday, January 9, 2020
Abortion is the Problem, Not the Solution Essay - 2143 Words
Legalized abortion is an extremely controversial and often volatile issue talked about around the world. Abortion was legalized in the United Sates in 1973 after Roe won the lawsuit against Dallas County District Attorney, for not permitting her to terminate the pregnancy that had occurred as a result of a rape, which later was revealed as a false statement (ââ¬Å"Roe v. Wadeâ⬠P.2) From then 38010338 children have been aborted until 1998. In addition, specialists have estimated an increase of more than 9 million abortions until 2005, making a massive total of more than 40 million, which is 24 times greater than American war causalities since American Revolution to the Gulf war of nineteen ninety (ââ¬Å"Over Forty Millionâ⬠P:1.) Abortion has becomeâ⬠¦show more contentâ⬠¦If they use any of these methods before having sexual intercourse, they would not have to worry about abortion. There are many other facts that show abortion is not the solution for unwanted pregnancies. The Majority of women terminate pregnancies because of unfair, unreasonable reasons. According to a survey that was done in 2004 to discover the reasons women decided to have abortions, only 2% of women had abortions because of reasons such as the possibility of an unhealthy fetus, her own health risk and trauma of being a victim in rape(Finner P: 112.) The rest of the 98% gave reasons such as the fear of having a dramatic life change, education, career and relationship interference, financial problems, not enough support and fear of been a single mother (Finer P:110-113). When making a choice between life and death of a living being, especially a human above reasons of the majority seems unreasonable. In addition, under above conditions, having an abortion will only make women face more weak psychological and physical effects. There is a huge legal controversy on the abortion issue. The main reason that supported legalizing abortion in Roe v. Wade is the Supreme Court decision that a fetus is a human but not a person. Since the United States Constitutionââ¬â¢s fourteenth Amendment protects only persons, aborting unborn children becameShow MoreRelatedProblem Solution Essay On Abortion1736 Words à |à 7 PagesDejenara Williams Ms. Milliner EES22GQ-04 May, 28 2017 Problem-solution Essay Whenever anyone ever brings up abortion, it s clearly a very opinionated subject. Opinions coming from all. Meaning men and women of a wide age range raised to learn and believe all sorts of religions. Even though this procedure is clearly only done to females, clearly. Everything about this topic is important, because depending on the side he or she is for pro-life or the opposite it s all based off of the personalRead More The Problems with Abortion and Solutions Essays1500 Words à |à 6 PagesThe Problems with Abortion and Solutions Abortion is referred as the termination of a pregnancy or of a fetus that is incapable of survival (Dictionary.com). Abortion is morally wrong and illegal because the fetus is a person. It is the same thing as murder. The reasons people have abortions are they are not ready to handle the responsibility of another human being, the fetus may have a birth defect, motherââ¬â¢s heath is an issue, rape, or simply because they donââ¬â¢t want any more children (Abortioninfo)Read More Solutions to the Abortion Problem in America Essay1462 Words à |à 6 Pages Solutions to the Abortion Problem in America Abortion in America is a huge issue that is causing much turmoil between the communities in America. Some people feel this way and some people feel another. I am personally for pro-choice, which means I am against abortion unless it is to save a mothers life due to medical problems. Through research I found that there are many things available that are being done to try and cut the rate of abortion in America and yet I feel that there is stillRead MoreThe Perception Of A Social Group1199 Words à |à 5 Pagesconsisted of three elements, with the first being the diagnosis of something as problematic and need for alteration, followed by a proposed solution that specifies what needs to be done, and finally a call to rational engagement in corrective action. (Snow Benford 1988) The first point highlighted the importance of contention when it comes to collective action. Problems within any given society are prevalent at all times, however, not until there is a call for a change does co llective action occur. 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This can be done by almost anyone from the mother herself to back alley abortions and even to abortions by clinics set up especially for this purpose. There are two sides to this abortion topic the PRO-LIFERead More Pregnancy and Abortion among Teens Essay1576 Words à |à 7 Pagesembarrassing and difficult situation that many have to confront. It is a problem that concerns all of us. Teen Pregnancy is a social problem that affects every individual in a community. Form the parents of the baby, to the baby, and the family around the teenagers. It is said that teen pregnancy leads to abortion. After many years of investigation, researchers have come to find an incredible relationship between teen p regnancy and abortion. It is not an easy task to raise a child during the teenage yearsRead MoreTeen Parenthood Essay1304 Words à |à 6 Pageslook for a solution. As teen and unplanned pregnancy become of a problem in society, planned parenthood is taking the bull by the horns and providing younger and older mothers alike with solutions such as birth control, abortion, and implants. According to ââ¬Å"Us Abortions Statsâ⬠within the last 10 years, teen pregnancy has become more of a problem among teenagers and in turn has caused abortion rates to rise (US Abortion Stats. Par 1) As teenage pregnancy is become more of a rising problem in theRead MoreAbortion : Where Have All The Criminals Gone?1041 Words à |à 5 Pagesas much as abortion. Why it this so? It is the nature of the topic. Abortion is a topic in which peopleââ¬â¢s views are just as diverse as the population itself. Most people avoid writing about such topics altogether, especially when they are in support of such an act. However when economist Steven D. Levitt and writer Stephen J Dubner wrote chapter 4 of ââ¬Å"Freakonomicsâ⬠titled ââ¬Å"Where have all the Criminals Gone?â⬠they did just that. The chapter details historical examples of bans on abortion, possibleRead MoreSocial Problems : A Social Problem1743 Words à |à 7 PagesKennedy Baker 10-30-17 Period 2 Ms. Osterman Abortion Paper Social problems can encompass many things, but they all have two things in common. They are a social state that disturbs society, and they are detrimental to society. There are four stages to a social problem: public outcry, crafting an official response, reaction to official response, and developing alternative strategies to solve problem. These stages run in a cycle and happen over and over again depending upon what the public is upset
Wednesday, January 1, 2020
Why Homosexuality Is Abnormal And Homes - 11892 Words
22 Michael Levin 1 Introduction This essay defends the view that homosexuality is abnormal and hence undesirable - not because it is immoral or sinful, or because it weakens society or hampers evolutionary development, but for a purely mechanical reason. It is a misuse of bodily parts. Clear empirical sense attaches to the idea of the use of such bodily parts as genitals, the idea that they are for something, and consequently to the idea of their misuse. I argue on grounds involving natural selection that misuse of bodily parts can with high probability be connected to unhappiness. I regard these matters as prolegomena to such policy issues as the rights of homosexuals, the rights of those desiring not to associate with homosexuals, andâ⬠¦show more contentâ⬠¦Homosexuality is likely to cause unhappiness because it leaves unfulfilled an innate and innately rewarding desire. And should the reader s environmentalism threaten to get the upper hand, let me remind him again of an unproblematic case. Lack of exerci se is bad and even abnormal not only because it is unhealthy but also because one feels poorly without regular exercise. Nature made exercise rewarding because, until recently, we had to exercise to survive. Creatures who found running after game unrewarding were eliminated. Laziness leaves unreaped the rewards nature has planted in exercise, even if the lazy man cannot tell this introspectively. If this is a correct description of the place of exercise in human life, it is by the same token a correct description of the place of heterosexuality. It hardly needs saying, but perhaps I should say it anyway, that this argument concerns tendencies and probabilities. Generalizations about human affairs being notoriously true by and large and for the most part only, saying that homosexuals are bound to be less happy than heterosexuals must be understood as short for Not coincidentally, a larger proportion of homosexuals will be unhappy than a corresponding selection of the heterosexual population. There are, after all, genuinely jolly fat men. To say that laziness leads to adverse affective consequences means that, because of our evolutionary history,Show MoreRelatedWhy Are We Still Focused On Prochoice And Gay Rights?1602 Words à |à 7 Pagesââ¬Å"abnormalityâ⬠in both sexual desire and gender expression. In todayââ¬â¢s society we are still focusing on what is normal or what is abnormal. In early times being deemed abnormal was a fatal punishable crime. Luckily today citizens such as homosexuals and women who abort babies are not getting punish such as death or jail time for making a personal lifestyle ââ¬Å"choiceâ⬠. Why are we still focusing on prochoice and gay rights? In this essay I will focus on prochoice today verse the nineteenth century andRead MoreEssay on Homosexuality in Hong Kong1477 Words à |à 6 PagesIntroduction In the last decade, the issue of homosexuality has been widely discussed and known in Hong Kong. People have more opportunities to approach the word `homosexuality in their daily life through literatures, movies and occasional news revealing celebrities homosexual behaviors. Simultaneously there has also been significant growth in commercial venues such as restaurants and bars, catering to gays and lesbians. In short, the social context of Hong Kong and the attitudes gays and lesbiansRead MoreHomosexuality Is Defined As Sexual Desire Or Behavior936 Words à |à 4 Pagesââ¬Å"Homosexuality hasnââ¬â¢t been discovered recently. It has been common in our world since ancient times and still exists today.â⬠(K.J .Dover,n.d.). Itââ¬â¢s in the nature of an individual to be a homosexual, something that cannot be changed no matter how much you persuade or force them. People have different attitudes towards homosexuality; some are tolerant about it while others canââ¬â¢t stand t he mere fact to see them around. This essay is going to define and briefly discuss homosexuality and how our societyRead MoreThemes Of Sexuality And Marriage Essay1155 Words à |à 5 Pagesthat both constrains heterosexual and homosexual practising men and women in middle-class society through the creation of prescribed gender traits. Which white middle-class men and women should participate in and adhere to to avoid being seen as an ââ¬Ëabnormalââ¬â¢ sexual deviant as opposed to the budding normalisation of heterosexual practices as biologically ââ¬Ënaturalââ¬â¢. PARA 1: - Biological to Psychological Sexual Deviancies After World War I, gender roles were beginning to shift as women were allowedRead MoreIs Homosexuality A Mental Disorder?1500 Words à |à 6 PagesHomosexuality has been one of the most controversial subjects around the world for thousands of years. Being a homosexual has been seen as taboo, morally wrong, and just abnormal. Scientists have questioned the mental health status of those who proclaim themselves as being homosexual, and have even gone as far to say that homosexuality is a mental disorder. Until 1974, being homosexual was deemed in the Diagnostic and Statistical Manual of Mental Disorders (DSM) as a mental illness, and classifiedRead More Gay, Lesbian and Bisexual Issues - Homosexuality and the Media1555 Words à |à 7 PagesHomosexuality and the Media à à à à There are many different aspects of life that Americans are exposed to on television each day. Some examples are things such as violence, sex and alcohol and in todays more accepting society, the issue of alternative lifestyles. This issue was not as predominant ten years ago as it is today. Yes, for many years there have been sexual undertones in many popular television shows or movies, but it was not until recently that these actors and actresses were actuallyRead MoreCauses and Factors of Homosexuality Essay603 Words à |à 3 Pagescompletely accepted and approved by society. The world regards them as abnormal; the Bible defines being homosexual as a sin. The homosexuals have been fighting for their right of being treated equally for many years, and so have some others who support and embrace ones who have different sexuality. Their only aspiration is to prove to the world that homosexuality is not a sin. Thereââ¬â¢s a great deal of factors resulting in homosexua lity. And they all demonstrate that thereââ¬â¢s nothing wrong with being aRead MoreMichael Levin Why Homosexuality Is Abnormal5240 Words à |à 21 PagesMichael Levin I Introduction This essay defends the view that homosexuality is abnormal and hence undesirable - not because it is immoral or sinful, or because it weakens society or hampers evolutionary development, but for a purely mechanical reason. It is a misuse of bodily parts. Clear empirical sense attaches to the idea of à ¡he use of such bodily parts as genitals, the idea that they *efor some- thing, and consequently to the idea of their misuse. I argue on grounds involving natural selectionRead MoreHomosexuality And The Modern Day Civil Rights Movement1701 Words à |à 7 PagesEverybody has their own reservations on homosexuality and the laws regarding homesexuality. Many people think of homosexuality as unnatural or a choice people make. There is also research being done to discover a gay gene to link homosexuality to birth. It is even considered that the battle for gay rights is the modern day civil rights movement. Just like in the 1960ââ¬â¢s with African Americans, the government has began to regulate the personal lives of those who are openly homesexual. It is becomingRead MoreSexuality and Gender: Foucaults Construction of Sexuality1458 Words à |à 6 Pagessexuality According to Foucaults theory of sexuality, both heterosexuality and homosexuality are constructs, rather than are ideas that are innately part of the individuals genetic makeup or sexuality. Before the 19th century mania for classifying persons and documenting medical disorders, there were only homosexual acts. Now, there are homosexual persons because of the medicalization of the language of homosexuality. Heterosexuality was also created as the mirror-image of heterosexuality. However
Tuesday, December 24, 2019
The Impact Of Globalization On Public Health - 1208 Words
The issue of globalization and its impact on the development of the global health situation has generated much controversy. Some believe that health has gained from the phenomenon of globalization some of the general benefits that have helped to improve the overall state of global health, while others have differed in this regard in that globalization has been a challenge in advancing the level of public health. Some studies and statistics indicate that globalization and the areas of globalization, such as economy, technology, politics and many other areas, have hampered the path of global public health development. Globalization is a powerful phenomenon that has impacted many areas such as economy, culture, technology, public health andâ⬠¦show more contentâ⬠¦However, the globalization prevents to achieve high levels of health, which remain a major challenge for low-income and developing countries. Access to medical technology in many countries depends heavily on government p rocurement. Purchasing systems aim at obtaining medicines or other medical products of good quality in a timely manner and in the quantities required and at reasonable costs. These principles are particularly important in the health sector because of the high costs and the health impact of quality issues and the attainment of an adequate value for money paid. The World Trade Organization multi-party agreement on government procurement provides an international framework for rules for enhancing the efficiency and rationalization of management in public procurement, which applies promoting transparency, fair competition and improving the value of public expenditures. The formulation of a sustainable global response to demand for both innovations in medical technology and the effective and equitable access to technology is a difficult and ever-evolving challenge. The development of new biotechnology, the assessment of this technology, the effective facilitation of its distribution and the rational use of it are all operational. The political, economic and legal environment affects the processes, options, priorities and allocation of resources at the practical level, andShow MoreRelatedThe Impact of Globalization on Public Health in United States2017 Words à |à 8 Pagesï » ¿The Impact of Globalization on Public Health in United States Introduction Good health for all people has turned out to be an acknowledged global objective and the records reveal that there have been extensive achievements in life expectancy over the past century. However, there has been persistence in health disproportions between affluent and deprived despite the fact that the prospects for upcoming health trends depend more and more on the latest processes of globalization. In the previousRead MoreAdvantages and Disadvantages of Global Integration1476 Words à |à 6 PagesAND DISADVANTAGES Globalization is the process by which different societies, cultures, and regional economies integrate through a worldwide network of political ideas through transportation, communication, and trade. Generally, globalization has affected many nations in various ways; economically, politically, and socially. It is a term that refers to the fast integration and interdependence of various nations, which shapes the world affairs on a global level. Globalization has affected the productsRead MoreDoes globalization affect negatively on civilizations? The term globalization means the procedure800 Words à |à 4 PagesDoes globalization affect negatively on civilizations? The term globalization means the procedure of connections and incorporations among individuals, organizations and legislatures of diverse countries, a methodology determined by global exchange and speculations, and helped by data innovations. In other words, it is a process of interactions between people, on the basis, that they live in one planet, regardless the limits and spaces separating them. The term globalization was a seldom known articulationRead MoreBureaucracy Is An Efficient System Bureaucracy1715 Words à |à 7 Pagesparticularly undemocratic. In public administration, bureaucracy plays a major role in how many institutions function however, tensions arise between democracies and bureaucracies as a result. Bureaucracy and democracy are conflicting forces due to the difference of ideals between the two systems because of: hierarchical demands, authoritarian arrangement and demoralization present in a bureaucracy. Democracy is changing as a whole due to the impacts of globalization which ultimately clashes withRead Moreeffects of globlization1124 Words à |à 5 Pagesï » ¿Health Globalization has both positive and negative effects about one of the major concerns, health. The health care is primarily affected by globalization is through the increasing and worsening of internationalization of various health risks. However, if you will have to define the terms and other dimensions of the health risks such as; Technological, economic, social, political and cultural as well as scientific aspects. The linkages between health care and globalization are quite complexRead MoreThe Social Work Policies1506 Words à |à 6 Pagescrucial amendment was established to increase domestic workers earnings. Public welfare was first established during the great depression to aid widows, deserted children, mothers and the needy. United States was an expanding country with most of its economy predominantly on agriculture. As the country industrialized, many were employed who entirely dependent on them for their income. Social insurance approach to public welfare was thought by the federal government to be the only way to meet certainRead MoreGlobalization Is The Development Of Increasingly1130 Words à |à 5 PagesAccording to Merriam Webster (2015) Globalization is the development of increasingly integrated global economy marked especially by free trade, free flow of capital, and tapping of cheaper foreign labor markets. In general, Globalization has affected many nations in various ways; socially, politically, economically, and environmentally. Over a period of time globalization can now turn the world into an integrated economy instead of the isolated economy. The more trading that takes placeRead MoreGlobalization And Its Impact On Society Essay925 Words à |à 4 PagesGlobalization is the process by which different societies, culture, and how regional economies integrate through a worldwide network of political beliefs through communication, marketing, and transportation. Predominately, globalization has made a worldwide impact on many nations in numerous ways such as; politically, economically, as well as socially. Globalization has shaped the independence of various nations, thus leading to worldly affairs based on a global level. Leading to trends in cultureRead MoreGlobalization Has Brought New Opportunities For Equitable Health1560 Words à |à 7 Pagessurrounding health around the world, health equity is a common concern. Though a highly normative term, equity is used for operationalization and measurement and can be defined as: ââ¬Å"the absence of systematic disparities in health (or in the major determinants of health) between social groups with different levels of underlying social advantage or disadvantageâ⬠¦ (Braveman and Gruskin, 2002, p. 254). While many factors influence health equity, one of the largest today is globalization; in fact, TheRead MoreNike Positive And Negative Effects Of Globalization1367 Words à |à 6 PagesThe Promises and Perils of the Globalization of Nike Globalization involves global interaction and cooperation between individuals, corporations, countries and their governments. As demand for products grows and the technology it takes to improve the process by which products can be manufactured more cheaply grows, globalization grows as well. It is supported by advancements in technology. These changes can have both short-term and lasting effects on issues surrounding economics, politics, the environment
Monday, December 16, 2019
Morality and Ethics Free Essays
Morality and Ethics Morality and ethics are terms often used as if they have the same meaning. At other times, they are used as if they have no relationship to one another. I think most people realize ethics and morality have something to do with the concepts of good and bad. We will write a custom essay sample on Morality and Ethics or any similar topic only for you Order Now However, English is not like French, which has the Academic Fantasies acting as its linguistic jury ââ¬â establishing what proper French is. English changes at the impulse of the crowded. One can bomb, and thatââ¬â¢s bad, but if one is the bomb, and thatââ¬â¢s good. The word ââ¬Å"moralityâ⬠has been co-opted by groups, such as the Moral Majority, making us think morality only deals with acts these religious groups think arenââ¬â¢t proper, or are therefore immoral. The meanings of the terms ââ¬Å"ethicsâ⬠and ââ¬Å"moralityâ⬠can be differentiated based on their origins in ancient Greek and Latin, respectively. As a result, words that come into the English language from the Greeks often have meanings that are primarily philosophical study, while the Latin-derived words imply ââ¬Å"doing the thing. Ethics comes from the Greek word ethos ââ¬â moral character or custom. Morality comes from the Latin word moralist ââ¬â custom or manner. The words both deal with the customs or the manner in which people do things. Their modern meanings relate to the way people act ââ¬â either good or bad. Morality, strictly speaking, is used to refer to what we would call moral conduct or standards. Morality is looking at how good or bad our conduct is, and our standards about conduct. Ethics is used to refer to the formal study of those standards or conduct. Sometimes, one refers to the study of conduct as moral philosophy, but that is less common than just saying ââ¬Å"ethics. â⬠One might say that morality is ethics in action, but in the end, the two terms can be used interchangeably. The study of ethics or moral philosophy can be divided into three broad areas: descriptive, normative and analytical or met ethics. Ethics deals with such questions at all levels. Its subject consists of the fundamental issues of practical decision making, and its major concerns include the nature of ultimate value and the standards by which human actions can be judged right or wrong. The terms ethics and morality are closely related. We now often refer to ethical judgments or ethical principles where it once would have been more common to speak of moral judgments or moral principles. These applications are an extension of the meaning of ethics. Strictly speaking, however, the term refers not to morality itself but to the field of study, or branch of inquiry, that has morality as its subject matter. In this sense, ethics is equivalent to moral philosophy. Although ethics has always been viewed as a branch of philosophy, its all-embracing practical nature links it with many other areas of study, including anthropology, biology, economics, history, politics, sociology, and theology. Yet, ethics remains distinct from such disciplines because it is not a matter of factual knowledge in the way that the sciences and other branches of inquiry are. Rather, it has to do with determining the nature of normative theories and applying these sets of principles to practical moral problems. Virtually every human society has some form of myth to explain the origin of morality. In the Louvre in Paris there is a black Babylonian column with a relief showing the sun god Shamash presenting the code of laws to Hammurabi. The Old Testament account of God giving the Ten Commandments to Moses on Mt. Sinai might be considered another example. In Platoââ¬â¢s Protagoras there is an avowedly mythical account of how Zeus took pity on the wretched humans, who, living in small groups and with insufficient teeth, weak claws, and lack of speed, were no match for the other beasts. To make up for these deficiencies, Zeus gave humans a moral sense and the capacity for law and justice, so that they could live in larger communities and cooperate with one another. There is some difficulty, already known to Plato, with the view that morality was created by a divine power. In his dialogue Euthyphro, Plato considered the suggestion that it is divine approval that makes an action good. Plato pointed out that if this were the case, we could not say that the gods approve of the actions because the actions are good. Why then do the gods approve of these actions rather than others? Is their approval entirely capricious? Plato considered this impossible and so held that there must be some standards of right or wrong that are independent of the likes and dislikes of the gods. Modern philosophers have generally accepted Platoââ¬â¢s argument because the alternative implies that if the gods had happened to approve of torturing children and to disapprove of helping oneââ¬â¢s neighbors, then torture would have been good and neighborliness bad. That morality should be invested with all the mystery and power of divine origin s not surprising. Nothing else could provide such strong reasons for accepting the moral law. By attributing a divine origin to morality, the priesthood became its interpreter and guardian, and thereby secured for itself a power that it would not readily abandon. This link between morality and religion has been so firmly forged that it is still sometimes asserted that there can be no morality without religion. According to this view, ethics ce ases to be an independent field of study. It becomes, instead, moral theology. How to cite Morality and Ethics, Papers
Saturday, December 7, 2019
Impact of Technology in Marketing Research-Free-Samples for Students
Question: Discuss about the Impact of Technology in Marketing Research. Answer: Impact of Technology in Marketing Research In the current business environment, marketing research is essential for the growth and development of all organizations and businesses since it puts an individual in the mind of the potential customers. Thanks to the technology, the theory of research have greatly transformed. As a result, the businesses are now renouncing paperwork and moving to mobile applications, USSD technology, and SMS information collections. The widespread implementation of the internet has transformed all businesses with only a few exclusions. Undoubtedly, technological developments have drastically changed the way market analysts carry out business. MRC Company will largely benefit from technology in transforming market research. Technology development will help the company to become more active and efficient. Based on the market research, technology will create new opportunities and pitfalls for achieving constructive business intelligence (Lee, 2017). Besides, the company will benefit from the enhancements of data collection (Market Research, 2018). Due to technology, there is a continuous stream of new software for data collection. Beyond the customary data collection methods such as focus groups, interviews and paper surveys, technology makes it possible for the market researchers to become much more aimed in what way they assess and how fast response can be obtained. For example, MRC can benefit from the mood-sensing trade appliance that is used to personalize the buying experience. According to Market Research (2018), the mood-sensing gadget is an effective tool for any research company looking to enhance market share and gather a lot of information about potential customers. Market Research (2018) added that with the bigger streams of statistics to gather, the ability to make data analysis is similarly crucial. The modern technology is making data analysis easier and more complicated. With better data analytics, MRC can be able to assemble that into reinforcing customer relationship management (CRM). Some companies use innovative analytics to strengthen customer retention and enhance lasting reliability. Also, the company can benefit from Google+, Twitter, and LinkedIn as they have developed the background in which research campaign is conducted. Social media can, therefore, change marketing research is electrifying ways, and it is also creating a business environment that generates an unfiltered response (Lee, 2017). Remarkable for reputation control and product recognition, marketing researchers can benefit from the enhanced abilities intrinsic in social media. Based on the research conducted by The Citizen (2017) Mobile technology has transformed market research where data is collected instantaneously. Real-time data is remarkable as it helps market researchers and organizations identify the information as it comes in. Mobile applications will allow MRC for data collection and geolocation in real time. It is, therefore, crucial to understanding where the information is originated from and geolocation can help MRC realize this. As per The Citizen (2017), Geo locations will remain to be a fervent trend in the current business environment and the world of market research as the company search for specific data. As a result of technology, companies can upload questionnaires digitally (Hajli, 2015). With surveys being uploaded on the internet to USSD technology and mobile applications, the market researcher can be able to retrieve them at the time convenient to them. Besides, Infoholic Research (2018) argue that cloud computing has made it possible for market research organizations to utilize their surveys. Mobile technology enables the documentation of insights and sentiments: With SMS and USSD technology, a company can be able to conduct a perception questionnaire and get immediate feedback to perceive how suppliers feel about the service or product (The Citizen, 2017). Technology can also benefit MRC in the sense that its developments in market research involve the incorporation of various sources of data hence allowing a holistic viewpoint of the individual or a certain situation. In todays business environment, insensible motivational demonstrative information can be incorporated with data collected submissively (Infoholic Research, 2018). This includes biometric quantification through wearable Smartphone or gadgets, and social media or simply digital information. As a result, marketing research will keep on evolving as businesses shift toward resourcefully integrating new data and using models that result in more consequential opinions and realistic applications (Hamilton Webster, 2012). Market research and considerable data are at the decisive moment and will come together to help businesses create more evocative insights (Mcquarrie, 2015). As a result, MRC will see more application of complex analytics, attitudinal and behavioral data to enable trademarks to create more premeditated decisions instantly. Using data sourcing, imaginative and analytical models can as well help with the atypical states of the consumer lifecycle such as retention, blend, cross -sell/up-sell and purchase (The Citizen, 2017). The use of technology will allow MRC as a market research consultancy to design self-service policies where customers can plan their concise micro-analysis. As earlier noted, technology has enabled marketing research to become more responsive. Responsive marketing research is a methodology that takes its insight from responsive software advancement which values assessment and data over resolutions and judgments (Market Research, 2018). Today, the real power for businesses is the capability to be responsive and also to adjust to what is promptly happening in the business environment (Insights Association, 2018). Businesses, therefore, require appropriate, achievable insights and data more rapidly than ever. Thus, technology supporting responsive research is an assessment, measure, and study approach that enables prompt pivots in businesses. In conclusion, just adopting a single channel like e-mail for acquiring market insights can rigorously constrain marketing research. Thus, companies should ensure that their research campaigns platforms adjust to the most suitable touch-points for social media; mobility, respondents and other innovative technology provide compliant platforms where to uncover the appropriate engagement method. Based on the above discussion, MRC will undoubtedly benefit from adopting the new technologies in research campaigns. As a result, the company will be able to improve their market research ability and provide accurate and effective service to their potential customers. List of Reference Hajli, N. (2015). Handbook of research on integrating social media into strategic marketing. Hershey, PA: Business Science Reference. Hamilton, L., Webster, P. (2012). The international business environment. Oxford, Oxford University Press. Infoholic Research. (2018). 7 Benefits of Digital Market Research Techniques Over Traditional Technologies. [Online] Available from: https://www.infoholicresearch.com/7-benefits-of-digital-market-research-techniques-over-traditional-methodologies/. [Accessed 13 July 2016] Insights Association. (2018). Emerging Technology: Impacts on Marketing Research. Available from: https://www.insightsassociation.org/article/emerging-technology-impacts-marketing-research. [Accessed 13 July 2011] Lee, I. (2017). The internet of things in the modern business environment. (Place of Publication not Identified) Market Research. (2018). 5 Ways Technology has Changed Market Research. [Online] Available from: https://blog.marketresearch.com/blog-home-page/bid/339928/5-ways-technology-has-changed-market-research. [Accessed 8 October 2013] Mcquarrie, E. F. (2015). The Market Research Toolbox: A Concise Guide for Beginners. Thousand Oaks: SAGE Publications, Inc. The Citizen. (2017). How Mobile Technology has Changed Market Research. [Online] Available at: https://www.thecitizen.co.tz/magazine/success/How-mobile-technology-has-changed-market-research/1843788-3903542-veyrbi/index.html. [Accessed 26 April 2017]
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