European Law Paper Essay Example | Topics and Well Written Essays - 1000 words

European Law Paper - Essay Example Moreover, by virtue of Section 6(3) any person born in Ireland becomes an Irish citizen if that person does not have the right to citizenship elsewhere. Pursuant to Section 6(1) and (3), the Irish authorities approved an Irish passport for Catherine in September 2000. Since the UK no longer applies the doctrine of jus soli (recognition of the citizenship conferred by any of its territories), Catherine was not automatically entitled to be recognized as a national of the UK under the British Nationality Act 1981. The facts reveal that Mrs. Chen went to Ireland for the purpose of enabling Catherine (the child she was pregnant with at the time) to become a citizen of Ireland and to therefore permit her to take up residence within the UK with Catherine. The court at first instance determined that Ireland is a part of the Common Travel Area under the Immigration Acts. As such Catherine as opposed to Mrs. Chen is entitled to move around the UK and in Ireland as she chooses to. However, Mrs. Chen and Catherine did not have the right to live in the UK under UK law. The Secretary of State for the Home Department denied an application for a permit to reside in the UK to Mrs. Chen and Catherine on the grounds that Catherine who was an infant was not asserting EC Treaty rights pursuant to Regulation 5(1) of the EEA Regulations and Mrs. Chen does not have a right to live in the UK pursuant to Regulation 5(1) of the EEA. Mrs. Chen appealed this decision to the Immigration Appellate Authority. The Appellate Authority ordered a stay of the appeal until such time as a reference to the Court of Justice could be determined. The questions referred to the Court of Justice generally asked for a determination of whether or not Directive 73/148, Direction 90/364 or Article 18 of EC Treaty read together with Articles 8 and 14 of the European Convention on Human Rights

Storm of Steel by Ernst Junger Essay Example | Topics and Well Written Essays - 750 words

Storm of Steel by Ernst Junger - Essay Example However, what could have been the most significant change in European warfare in those times? Junger’s accounts are extremely straight forward and he makes no effort in downplaying the extremity of the situation; â€Å"Bloody scraps of cloth and flesh had been left on bushes around the crater – a strange and dreadful sight that that put me in mind of the butcher – bird that spikes its prey on bushes.† (Page 23) One can easily notice the fact that the book involves a lot of manual work when it came to fighting. Shelling, that is tear gas was a common way of making the enemy retreat. It can be stated that there was minimal use of technology, the biggest one being guns and bullets. Even though the Industrial Revolution took place in the 18th century, it had a rather late impact on the European warfare. There was little or less impact in World War I for them, however, towards the 20th century and when World War II took place, some big changes were observed. Nu clear powers came into being when the world witnessed the bombings of 1945. The storm of steel clearly gives away tactics of that time. It is quite obvious that only the general who is the head of a particular army made plans and the rest of them just followed or executed it. However, this single minded approach is not very useful if we pay a little attention. In the late 19th century, people started believing that the risk or fate of an entire nation in a war could not be left upon one person’s hand; hence the general started being advised when it came to making plans regarding battles. Also till World War I generals would be present in the scene of action. This routine was changed when strategies were allotted into categories which were separated geographically. This meant that at no single time, the strategies could be gone into the hands of the enemy at once. These accounts of Junger can be easily used to analyze the European tactics and warfare in those days. In the very beginning of the book, Junger introduces the reader to the introduction he got when he was fist deployed, a place called Champagne. As soon as the soldiers reached their place, they were attacked with what Junger describes as â€Å"curious fluttering and whooshing sound†¦followed by a sudden violent explosion† (Page 6). The attack was also made by shelling which has been frequently in the past and remains to be commonly used today as well. As the book moves forward, we learn the use of trenches. Trenches play a significant part in the book, as it is a great defensive strategy. World War I has played a significant role in developing the European countries in matter of tactics and warfare. The biggest change that one saw in the warfare was the decrease in the usage of trenches. They were greatly used in the World War I as per the narrations of Ernst Jugner, but just as the world has witnessed a revolution in every aspect of life, technological advancements also came and s wept everyone off their feet. Trenches required hard work and a lot of labor, also, with the new machines and equipment, crossing trenches became no problem at all. As a result, when the trenches stopped providing the basic need of security and shield, they were stopped being used as a whole. After World War I, there was a rather definite change in European warfare. In terms of

Media Influence on Society Essay Example for Free

Media Influence on Society Essay Media Influence on Society Introduction In the last 50 years the media influence has grown exponentially with the advance of technology, first there was the telegraph, then the radio, the newspaper, magazines, television and now the internet. We live in a society that depends on information and communication to keep moving in the right direction and do our daily activities like work, entertainment, health care, education, personal relationships, traveling and anything else that we have to do. Media is the most powerful tool of communication. It helps promoting the right things on right time. It gives a real exposure to the mass audience about what is right or wrong. Even though media is linked with spreading fake news like a fire, but on the safe side, it helps a lot to inform us about the realities as well. Media has a constructive role to play for the society. Today News Channels and even some Newspapers are mouthpiece of some social issues, which helps us to estimate the realities of lives. Media has played an important role in order to focus on the social issues in almost every era. It is the fact that in most of the eras, media were not being given free and fair chances to explore the issues of society more openly than it is being given now; but we cant deny this fact that the issues were always raised in order to provide justice to the people. Influence of media on children Television can be a powerful entertainment and education tool for children given the right programming. However, studies have shown that television, and media in general, can also have a very negative influence. Some studies indicate it can shorten attention span, distort body image, work in conjunction with other factors to escalate obesity, create fear, and increase aggressive and anti-social behaviors if exposure is unmonitored and unlimited.

Impact of Student Socio-Economic Background on Performance

Impact of Student Socio-Economic Background on Performance â€Å"THE IMPACT OF STUDENT’S SOCIO-ECONOMIC BACKGROUND ON ACADEMIC PERFORMANCE† A CASE STUDY OF NORTH-EAST STUDENTS IN LOVELY PROFESSIONAL UNIVERSITY (PUNJAB) JALESH GURUNG CHAPTER I INTRODUCTION ORIENTATION OF THE PROBLEM Education is a basic tool used by society for transmission of its societal values and culture. so, every parents are the most immediate relation of a child for their development and growth. Their financial status and education do have an important influence on the personality of child. For instance educated parents can better understand the educational needs and their children’s aptitude. They can help their children in their early education which affects their proficiency in their relative area of knowledge, confidence, idea, etc. While, Belonging to strong financial background, parents can provide latest technologies and facilities in a best possible way to enhance educational capability of their children as well as they provide good education facilities also. Socioeconomic status is an economic and sociological combined total measure of a persons work experience and of an individuals or family’s economic and social position relative to others, based on income and education, and occupation (Marmot, Michael, 2004) indicates When analyzing a family’s social economic status, the household income, earners’ education and occupation are examined, as well as combined income, versus with an individual, when their own attributes are assessed. Many factors and reasons have been given as being responsible for the continuous falling in the academic standard of our present educational system. These includes; attitudes of teachers to work, lack of seriousness on the part of the students, effect of the dwindled economy and to some extent the increasing degenerating moral system. According to Lareau, Annette ( 2003) observes that Socioeconomic status is typically broken into three categories, high, middle, and low to describe the three areas a family or an individual may fall into when placing a family or individual into one of these categories any or all of the three variables income, education, and occupation can be assessed. Additionally, low income and little education have shown to be strong predictors of a range of physical and mental health problems due to environmental conditions may be the entire cause of that person’s social predicament to begin with. Most economically disadvantaged children have effectively mastered the usual developmental childhood tasks of motor and language skills, and have learned the values of social practices of their homes and neighborhoods (Harry Klingner, 2007); but they may not have learned particular forms of language or the ways in which schools use specific forms of language to the extent that their middle inco me peers have. Therefore, it can be assumed that students’ failure to achieve academically may be explained by other factors also. The amount of money that a family has or the color of a child’s skin should not influence how well that child learns (Rothstein, 2004) Literature review These chapter focus on the relevant and related literature of various researches in an attempt to relate their work to this study. Sub topic related to the literature review are as follows: The concept of social and economic problems Relationship between parents income to the students. The students academic performance as well as social adjustment (i)The concept of social and economic problems While sociology use some broad theoretical sense to explain the concept and meaning of society and its activities. They divide the macro-level society into two broad perspectives, namely functionalism and conflict theory, and then the feminist theory, which combines both micro and micro-levels of analysis, and also the interactions theory, a micro –level analysis which is by far the most influential of the social psychological theories in sociology. (Coleman and Cressey, 1999).The idea make up of the society in such that individual and group of individual is co-exist in the society and make them as a harmony and pace without any threat to the society. Moreover the concept of social and economic problems is that misconstrued by many people. (ii)Relationship between parents income to the students. APA ( 2001) describe the relationship of family socioeconomic status to childrens readiness for school, Across all socioeconomic groups; parents face major challenges when it comes to providing optimal care and education for their children. For families in poverty these challenges can be formidable. Sometimes, when basic necessities are lacking, parents must place top priority on housing, food, clothing, and health care. Educational toys, games, and books may appear to be luxuries, and parents may not have the time, energy, or knowledge to find innovative and less-expensive ways to foster young childrens development. Furthermore,( Ominde, S.H 1964) observes that even in families with above average income parents often lack the time and energy to invest fully in their childrens preparation for school, and they sometimes face a limited array of options for high-quality child care both before their children start school and during the early school years. Kindergarten teachers throughout the country report that children are increasingly arriving at school inadequately prepared. Families with low socioeconomic status often lack the financial, social, and educational supports that characterize families with high socioeconomic status. Poor families also may have inadequate or limited access to community resources that promote and support childrens development and school readiness. Parents may have inadequate skills for such activities as reading to and with their children, and they may lack information about childhood immunizations and nutrition. Lareau, Annette (2004) state that low maternal education and minority-language status are most consistently associated with fewer signs of emerging literacy and a greater number of difficulties in preschoolers. Having inadequate resources and limited access to available resources can negatively affect families decisions regarding their young childrens development and learning. As a result, children from families with low socioeconomic status are at greater risk of entering kindergarten unprepared than their peers from families with median or high socioeconomic status. Amutabi, M.A (2003) says that the impact of socioeconomic status on children’s readiness for school: while the segregating nature of social class, ethnicity, tradition may well reduce the variety of enriching experience through to be prerequisite for creating readiness to learn among children activates. Similarly, cast ethnic value, housing, neighborhood and access to resource that directly or indirectly affect enrichment or deprivation as well as the acquisition of specific value system (iii)The student’s academic performance as well as social adjustment Academic performance of students in the classroom is very important as this is capable of determining whether the student is doing well or not. Parents, Teachers, School Administrators attach so much importance to students’ academic performance that if the students are not performing well academically, then they see all other efforts of the students in the school programme as a total waste. These people pretend as if there are no other activities for the student in the school environment aside the academics, hence academic performance defines the totality of the child in his school life. Contrary to the opinion of this group, it is important that there are many factors that determine the level of a student’s academic achievement, chief among these factors is social adjustment. Moreover, academic performance has been seen as a term used for students based on how well they are doing in their studies and classes. This definition tends to see academic performance as the culmination of all the activities of the student in the school. Academic performance for the student is also seen as the extent to which a student has achieved his educational goals (Wikipedia, 2012-2014). 1.3 Statement of the problems According to study published in 2001 issue of Psychological Science found that children of parents with a high socioeconomic status tended to express more disengagement behaviors than their less fortunate peers. In this context, disengagement behaviors represent actions such as fidgeting with other objects and drawing pictures while being addressed. Other participants born into less favored circumstances tended to make more eye contact, nods as signs of happiness when put into an interactive social environment. The more fortuitous peers felt less inclined to gain rapport with their group because they saw no need for their assistance in the future. However, Socio-economic status can be measured in a number of different ways. The prime things that commonly it is measured by father’s education, occupation and income. All familys socioeconomic status is based on family income, parental education level, parental occupation, and social status in the community such as contacts within the community, group associations, and the communitys academic performance of the family, while families with high socioeconomic status often have more success in preparing their young children for school because they typically have access to a wide range of resources to promote and support young childrens development in day to day life. They are able to provide their young children with high- quality child care, books, and toys to encourage children in various learning activities at home but lack in poor ones. And , they have easy access to information regarding their childrens health, as well as social, emotional, and cognitive development. In addition, families with high socioeconomic status often seek out information to help them better prepare their young children for school and college. The study aimed at finding o ut the contribution of socio-economic status of the family on the academic performance of the student in private Universities in Punjab, A case study of North-East students in lovely professional university. 1.4 Objective To study the relationship between socio- economic status of families and its impact on the academic performance of the students in university. To study the impact of the level of parents’ education on the academic performance of the students in university level. To study the impact of occupations of parents on academic performance of the students in the in university. Similarly, to know about the negative impact as well as positive impact on the students performance. To study the impact of family income on academic performance of the students in the various courses in university. To study the impact of expenditure on children’s education on their academic performance in the university. To know about the student’s academic performance (TGPA/CGPA) according to their families socio-economic background. CHAPTER-II METHODS AND PROCEDURE 2.1 STUDY AREA 2.2METHODS While, according to the availability of data the method adopted for this study was descriptive and statistical in nature. The sample consists of 95 students selected from different courses in the university. Therefore, Out of 95 students 36 were males and 59 were females in age range of 20 to 30 from different schools. To have a comparative study of the boys and the girls ,the sample was drawn from both the boys and the girl’s institutions. Stratified random sampling technique was applied for selection of the students for the sample. Similarly, For a detailed technical discussion of all that will be presented in this section, see Dachs et al (2006) Figure 1 –Heretical web of determinants of academic performance of students at university (Dechs et al. 2006) 2.3 QUESTIONNAIRE A self designed questionnaire was used for collection the data. First of all, The questionnaires were designed keeping in mind the objectives of the study and the clarity required at the field level for filling the questionnaire. In this study both types of questionnaire are used i.e. closed-ended as well open ended or combination of both. 2.4 DATA COLLECTION The primary data was collected through the help of questionnaires. While its carry both types such as closed ended as well as open ended questions and they are self administered. All around 95 of questionnaires ware distributed in different block of the University. Secondary data were collected by the appropriated data sources including news paper, books, journals, and activities both published and un-published data sources. Therefore, the data were collected by the method of snow ball survey as well as self distributed. Generally I followed this methods because it was save my time and costs. Additional documents were collected by the university faculty and from friends as well. 2.5 PROCESSING OF DATA The Entire data from the field observation was processed and tabulated in the computer unit. However these processes include the writing, interpretation, analysis of data etc. The programmed for the data feeding, coding of data, scrutinizing of data, preparing of table for the report as well as preparing of statistical volume and analytical tools likewise bar diagram, percentages, pie chat etc.

Compare cpu scheduling of linux and windows

Compare cpu scheduling of linux and windows ACKNOWLEGMENT I mohd sharique ansari of B tech-M Tech (CSE) would like to thank my teacher of numerical analysis Mr. RK Gupta who helped me throughout the development of this paper in best possible way. I would like appreciate the dedication and sincerity of my teacher for his guidance without whom this paper would not been possible. At last I would like to thank all my friends for their support. INTRODUCTION CPU SCHEDULING: Scheduling basically deals with the selection of a process that exists in the memory and ready to execute. The selected process is allocated with the CPU. This function is performed by the CPU scheduler. The CPU scheduler makes a sequence of â€Å"moves† that determines the interleaving of threads. Programs use synchronization to prevent â€Å"bad moves†. †¦but otherwise scheduling choices appear (to the program) to be nondeterministic. The schedulers moves are dictated by a scheduling policy. A general overview of the scheduling is depicted by the below representation: Windows process scheduling 1) Windows 3.1 xs used a non-preemptive scheduler, meaning that it did not interrupt programs. It relied on the program to end or tell the OS that it didnt need processor so that it could move on to another process. This is usually called cooperative multitasking. Windows 95 introduced a rudimentary preemptive scheduler; however, for legacy support opted to let 16 bit applications run without preemption 2) NT-based versions of Windows use a CPU scheduler based on a multilevel feedback queue, with 32 priority levels defined. It is intended to meet the following design requirements for multimode systems: Give preference to short jobs. Give preference to I/O bound processes. Quickly establish the nature of a process and schedule the process accordingly. All processes receive a priority boost after a wait event, but processes that have experienced a keyboard I/O wait get a larger boost than those that have experienced a disk I/O wait. â€Å"Foreground† processes given higher priority. 3) Windows XP uses a quantum-based, preemptive priority scheduling algorithm. The scheduler was modified in Windows Vista to use the cycle counter register of modern processors to keep track of exactly how many CPU cycles a thread has executed, rather than just using an interval-timer interrupt routine. Linux Process Scheduling From versions 2.6 to 2.6.23, the kernel used an O (1) scheduler. The Completely Fair Scheduler is the name of a task scheduler which was merged into the 2.6.23 release of the Linux kernel. It handles CPU resource allocation for executing processes, and aims to maximize overall CPU utilization while maximizing interactive performance. It uses that uses red-black trees instead of queues. Two classes of processes: real-time (soft deadlines) timesharing algorithm Normal process scheduling uses a prioritized, preemptive, credit-based policy: Scheduler always chooses process with the most credits to run. On each timer interrupt one credit is deducted until zero is reached at which time the process is preempted. If no ready process then all credits for a process calculated as credits = credits/2 + priority. This approach favors I/O bound processes which do not use up their credits when they run. The Round Robin and FIFO scheduling algorithms are used to switch between real-time processes Windows is by far the most popular proprietary personal computer operating system, while Linux is the most prominent free software operating system. Windows Linux 1)Process a)Address space, handle table, statistics and at least one thread b)No inherent parent/child relationship 1) Process is called a Task a)Basic Address space, handle table, statistics b)Parent/child relationship c)Basic scheduling unit 2) Threads a) Basic scheduling unit b) Fibers cooperative user-mode threads 2) Threads a)No threads per-se b)Tasks can act like Windows threads by sharing handle table, PID and address space c)P-Threads cooperative user-mode threads 3)windowing Windows has a kernel-mode Windowing subsystem. 3)windowing Linux has a user-mode X-Windowing system. 4)Two scheduling classes a)â€Å"Real time† (fixed) priority 16-31 b) Dynamic priority 1-15 4)Has 3 scheduling classes a)Normal priority 100-139 b)Fixed Round Robin priority 0-99 c)Fixed FIFO priority 0-99 5)Higher priorities are favored a) Priorities of dynamic threads get boosted on wakeups b)Thread priorities are never lowered 5)Lower priorities are favored a) Priorities of normal threads go up (decay) as they use CPU b)Priorities of interactive threads go down (boost) 6)Most threads run in variable priority levels a)Priorities 1-15; b)A newly created thread starts with a base priority c)Threads that complete I/O operations experience priority boosts (but never higher than 15) d)A threads priority will never be below base priority 6)Most threads use a dynamic priority policy a)Normal class similar to the classic UNIX scheduler b)A newly created thread starts with a base priority c)Threads that block frequently (I/O bound) will have their priority gradually increased d)Threads that always exhaust their time slice (CPU bound) will have their priority gradually decreased 7)The Windows API function SetThreadPriority() sets the priority value for a specified thread a)This value, together with the priority class of the threads process, determines the threads base priority level b)Windows will dynamically adjust priorities for non-real-time threads 7)â€Å"Nice value† sets a threads base priority a)Larger values = less priority, lower values = higher priority b)Valid nice values are in the range of -20 to +20 c)Non-privileged users can only specify positive nice value 8) Real time scheduling in windows. Windows xp supports static round-robin scheduling policy for threads with priorities in real-time range (16-31) a) Threads run for up to one quantum. b) Quantum is reset to full turn on preemption. c) Priorities never get boosted. 9) RT threads can starve important system services such as CSRSS.EXE Se-Increase Base Priority Privilege is required to elevate a threads priority into real-time range. 8) Real time scheduling in Linux. Linux supports two static priority scheduling policies: Round-robin and FIFO (first in, first out) a) Selected with the sched-setscheduler( ) system call b) Use static priority values in the range of 1 to 99 c) Executed strictly in order of decreasing static priority 9) RT threads can easily starve lower-priority threads from executing Root privileges or the CAP-SYS-NICE capability are required for the selection of a real-time scheduling policy 10) Some System calls and DPC/APC handling can cause priority inversion 10) Long running system calls can cause priority-inversion 11) Scheduling timeslices in windows The thread time slice (quantum) is 10ms-120ms a)When quanta can vary, has one of 2 values 11) Scheduling timeslices in Linux. The thread quantum is 10ms-200ms a)Default is 100ms b)Varies across entire range based on priority, which is based on interactivity level 12) Windows NT has always had an O (1) scheduler based on pre-sorted thread priority queues. 12) The Linux 2.4 scheduler is O(n) If there are 10 active tasks, it scans 10 of them in a list in order to decide which should execute next This means long scans and long durations under the scheduler lock 13) In windows (vista sp1) the time-slice varies -manual (user setting, window boost) as well as automatic (window boost). 13) In Linux 2.6.28 the time-slice does not vary- manual(user setting, window boost) and automatic (window boost). 14) In windows (vista sp1) CPU partitioning is not possible. 14) In Linux 2.6.28 CPU partitioning (CPU sets) is possible. 15) Scheduler load balancing is not possible. 15) Scheduler load balancing is possible.

The Right Key :: Free Essays Online

The Right Key Today many common, everyday functions are governed by punching the right keys. Whether you are "surfing" the World Wide Web or making a long-distance phone call, you essentially press some type of key to manipulate some form of technology. This ability to manipulate technology can be considered a "literacy": a mastery of the specific skills and knowledge required to use technology to a person's advantage. Because of their widespread use in everyday life, a literacy of different forms of technology is a necessity for people today. The ability to use some form of technology to your own advantage is to be technologically literate. Technology encompasses everything from computers, the World Wide Web, and e-mail to telephones, cash machines, and library cataloguing resources. This definition implies just a working knowledge and familiarity with the technology in the world today and not a complete, in depth knowledge. A knowledge is mandatory for all because technology is constantly surrounding people today. Computers and related objects are now used by not only scientists and engineers but also students and parents. A knowledge of how to search the World Wide Web can be useful when a student is looking for references for a report. Checking a bank account balance over the phone can be a useful skill for a parent with little time. Both skills however require a literacy of computer, telephone, and banking technology. In my own experience, a technological literacy is essential in my life: there is not a day where I do not use some form of technology. Not only do I use a long distance code when calling home but I also acquire money to pay my phone bill from a cash machine. I frequently e-mail friends at other colleges and have an electronic meal plan on my college ID card. When writing papers I do research with the on-line library catalog and actually write my paper on my computer. If I did not know how to use these forms of technology I would certainly not be able to pass my english class. Thus for people who are illiterate technologically their lives become more complex and at times difficult in a world which is very dependent on technology. If you urgently need money at midnight, and do not know how to use a cash machine, can you wait till the bank opens in the morning? A person can only search for references on a computer and save themselves large amounts of time if they know how to use a computer.

Who Is Responsible For Cleanup Under CERCLA? :: essays research papers

Who Is Responsible For Cleanup Under CERCLA? What is CERCLA? The Comprehensive Environmental Response, Compensation, and Liability Act ( CERCLA ) 1) The purpose of CERCLA is to make owners and operators of hazardous waste dump sites and contaminated areas, as well as their customers, responsible for cleanup costs and property damage. 2) CERCLA is also referred to as THE SUPERFUND. It is authorized to a level of 8.5 billion dollars. The funding for CERCLA comes 87% from taxes on the chemical industry and 13% from general revenues of the federal government. Who is responsible? After a hazardous waste site is identified, CERCLA places ultimate cleanup responsibility on those who used the site. Parties responsible for a waste dump are liable for the cost of waste removal and other remedial action.   Ã‚  Ã‚  Ã‚  Ã‚  If potentially responsible parties can be identified, then they can be held liable for either cleanup costs incurred, or for replenishment of the Superfund. Who is a Potentially Responsible Party? 1.) Owners and operators of waste sites. i) CERCLA actions against dissolved corporations are permissible ii) If one is the owner or operator, liability may attach even if some other party in the past placed hazardous wastes there. ( The seller of a foundry was found liable under CERCLA when it was sold for $25,000, but was appraised at $200,000, suggesting the decision to sell was for disposal of hazardous materials.) A vendor is not an owner if it did not own the property at the time of toxic discharge from the facility. iii) A parent company may be considered the owner, despite the formation of a subsidiary with day to day control over operations. iv) Lenders and secured creditors are liable if they actively participate in decisions involving either waste treatment, or site development. They are not liable if they do not participate in management decisions. (silent partners and banks) v) An owner, employer, or waste generator may be liable for the harmful consequences of disposal practices undertaken by third parties in a contractual relationship with it. ( If I hire Fly-By-Night Disposal Corp. to dispose of my waste and they do so by dumping it in the river, then I may be liable.) 2.)Persons who accepted hazardous substances for transport or disposal. 3.)Persons who arranged with a transporter for transportation of wastes. 4.)Any person who arranged for disposal or treatment of hazardous substances.