Autism Symptoms and Early Signs Essay Example | Topics and Well Written Essays - 1500 words

Autism Symptoms and Early Signs - Essay Example DSM-IV criteria describes the ASDs in children aged 3 years and older however, the emphasis is now given on characterizing the symptoms before three years as developmental abnormalities occur at a very young age and early intervention can also provide a good prognosis for ASD children. ASD leads to impairments in three functional spheres of influence: communication skills, both verbal and non-verbal, socialization and a deficiency of behavioral flexibility, making the child rely on routines. Autism is considered as the most prevalent among the severe developmental disorders. Classic autism was first described by Leo Lanner in 1943 and according to a 2007 report, it is estimated to occur in approximately 1 in 1000 individuals and ASD occurs in 1 in 150 individuals. Prevalence in Canada is estimated to be two per 1000 for autism and six per 1000 for the whole of the ASDs (Bryson et al 2004; Benson & Haith 2009). As mentioned earlier, the developmental abnormalities start manifesting at a very young age even before 3 years of age. Furthermore studies have provided evidence that early intervention can optimize the outcomes for the children affected with autism. Hence, early diagnosis by detecting the early signs and symptoms in the autistic children can aid early intervention and good prognosis. Before proceeding towards the symptoms and early signs of autism, it would be resourceful to overview the etiology of ASD. No singular cause can be pointed out however; the most common and popularly accepted cause is brain abnormalities and genetic etiology. Moreover, it should be made clear over here that autism is not a psychological disorder brought about by poor parenting or childhood years. One important etiological factor is the hereditary origin of autism. Cluster of unstable genes leading to brain abnormalities is also another explanation for the etiology of autism. Some other current theories which are under investigation include toxin ingestion during pregnancy an d environmental factors such as viruses (Evans & Daniels 2006). A male predomination is observed at a ratio of four to one. In monozygotic twins there is a high concordance rate around 90%. In children with pre-existing genetic disorders such as Fragile X syndrome, phenylketonuria, tuberous sclerosis, Angleman’s syndrome and Cornelia de Lange syndrome, autistic symptoms can be manifested (Benson & Haith 2009). The overview of ASD etiology exhibits genetic causes and hereditary co-relation as the main factors leading to the developmental abnormalities in the children. The core symptoms that manifest during the first two years of life represent the abnormalities in the social, communicative and cognitive developmental skills of the child. Any abnormality in the normal development of one functional domain also leads to negative outcome on the others as well. The social abnormalities of the autistic child exhibit themselves in categories of attachment, social imitation, joint att ention, orientation to social stimuli, face perception, emotion perception and expression and symbolic play. Children with autism exhibit disoriented relationships with their mothers. In autistic children the social behavior of looking at faces develops late at 12 months as compared to normal development at birth. Social behaviors such as following person’

Business information system Essay Example | Topics and Well Written Essays - 1500 words - 2

Business information system - Essay Example There are many factors that are contributing to the increasing vulnerability of organizational information assets. Given below are some of the important factors that play significant role in making the organizational assets vulnerable (Prentice Hall, 2010; KingCounty, 2009; Turban et al., 2005): Internet Vulnerabilities The research has shown that open or public networks such as the Internet are more vulnerable than internal networks for the reason that they are virtually open to everyone. Hence, when the Internet turns out to be an important part of the business network, and the most of the business tasks are supported by this network then the organization’s information arrangements also become open for attacks from outsiders. Wireless Security Challenges Wireless networks based on radio technology are also vulnerable to security penetration for the reason that radio frequency bands are easy to scan and detect for the attackers. These days Wi-Fi technology is extensively avai lable and offering great deal of support for connectivity and information sharing. However, these networks always remain the major target of attackers which can cause problems for the organizations and attacks against information system. Malicious Software: Viruses, Worms, Trojan Horses, and Spyware A malicious software program can cause a variety of threats for example worms, computer viruses and Trojan horses. These threats can cause massive destruction to organizations’ resources in the forms of theft of organizational information, personal data theft and huge danger to corporate and personal information. Hackers and Cybervandalism A hacker is a person who aims to obtain illegal access to an information system. However, in the hacking community, the term cracker is normally employed to demonstrate a hacker with criminal objectives, though in the public press, the terms cracker and hacker are employed interchangeably. These hackers can get access to an organization’s network and launch a variety of security attacks such as: (Prentice Hall, 2010; KingCounty, 2009; Turban et al., 2005): Spoofing and sniffing Denial of service attacks Identity theft Question 2: Contrast unintentional and deliberate threats to an information resource. Provide two (2) examples of both. Information systems are vulnerable and in danger due to a number of possible threats and hazards. However, there are two major types of threats known as deliberate threats and unintentional threats. Given below are acts with no malicious determination and with malicious determination (Rainer, 2009; Safari Books Online, 2013; E.Whitman, 2004): Unintentional Threats Device Loss Human errors or mistakes are the major causes of un-intentional threats that can happen due to human error or due to negligence of human. For example, a person who has lost his device, mobile or laptop which be misused by an attacker for carrying out illegal activities. Temporary Hires Temporary hires are also ma jor type of unintentional threats. In this scenario, temporary workers including contract labor, janitors, consultants, and guards can also create serious security loss for the organizations. Contract labor, for example temporary hires, can be ignored in information security policy. Though, these staff members can unintentionally access the