Analysis of Leroi Jones A Poem Some People Will Have To Understand Ess

Analysis of Leroi Jones' A Poem Some People Will Have To Understand  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   There is an implied threat in "A Poem Some People Will Have To Understand" by Leroi Jones. Ostensibly, there is no intimidation. The poem is confessional, even reflective; the theme is one of mutability and change. However, there is something frightening and ominous in Jones1 vision, which he creates through attention to word choice and structure. Jones' warning is immediately evident in the title through his manipulation of words. The phrase "have to" has two meanings. One the one hand, "have to" is an innocuous statement of the alliance Jones expects to find among his Afro-American readers--these people will "have to" understand the poem because it speaks to their individual, personal lives. On the other hand, there is a more sinister connotation in "have to"--the idea that others will "have to" understand this poem because they will be forced to do so. Beyond the title, Jones creates a forbidding speaker--a man at a crossroads, or rather, at a moment of decision. However, the structure of the first stanza is direct and conservative, almost prosaic. Jones gives us nothing that is revolutionary here. Instead, he lays the groundwork for this piece with the gloomy initial images of "(d)ull unwashed windows of eyes"(1). These eyes are no doubt those of the speaker, and they have been dulled and dirtied by his existence as a black man in the post-segregation 1960s. The "industry" he mentions in lines 2 and 3 is both the industry of the American machine that exploits the underprivileged, and the industry he "practice(s)." The speaker is a self-professed "slick / colored boy, 12 miles from his / home" who practices "no industry" (35). By "... ...The promised "phenomenon" has not come, and it is now up to him to bring it about through violence. Jones does not allow the speaker to lose any of his charm as he politely invites his "machinegunners"--the tools of his new industry--to "please step forward" (26). He is a hustler to the end, a smooth-talker who is now at home in his new ego and his new profession. Jones employs the dynamics of change to his speaker throughout the poem. From an aimless vagrant to a passionate revolutionary, Jones plots his speaker's course using specific words and structural techniques. Through these elements, we witness the evolution of a new black man--one who is not content with the passivity of his earlier spiritual leaders. We are left with a threat--a steel fist in a velvet glove of poetry--and it becomes a poem that we "have to" understand, whether we want to or not.   

Risk of Schizophrenia Essay

Over the last few decades Schizophrenia has become embedded in mainstream vernacular as any behavior or emotional response that is out of touch with reality. However even with its popularity heightened through movies and headline news stories, schizophrenia is still one of the most enigmatic and least understood disorders of the brain. With current research focused on the role of neurobiology and functioning on a cellular level, investigative analysis has merited new innovations towards its source, however a single organic cause for the disorder still eludes scientists. Although the foundation of the affliction is still unknown, its effects are well documented and over the next few pages will show the changes in the brain as the disease develops, and how those alterations impact the rest of the body and alter various other functions throughout the viscera. The term Schizophrenia was first coined in 1911 by Swiss psychiatrist Dr. Eugen Bleuler and translates from the original Greek as schizo (split) and phrene (mind), making a literal translation of split-mind, in reference to the disjointed thinking of those with the disease (Johnstone, 1994). Although the term was first used in the early twentieth century, according to scholars a ‘madness’ was described in The Ebers Papyrus, a collection of ancient Egyptian medical papers dating back to 1550 BC, which accurately depicts some of schizophrenia’s symptoms (Johnstone, 1994). With its possible documentation over three millennia ago and its symptoms documented in a myriad of medical journals throughout history, the disorder itself is very rare. Those who are at the highest risk of manifestation are offspring whose parents are both schizophrenic, although even at this rate the risk of manifestation is about forty-six percent. Globally however its prevalence is about 0.9 percent or fifty-eight million people worldwide (Hollandsworth, 1990). According to James G. Hollandworth of the University of Southern Mississippi, schizophrenia is primarily characterized by a disintegration of reality perception, consciousness, and thought process which results in a debilitated proficiency in social and professional faculties (Hollandworth, 1990). While schizophrenia can most arguably be classified as a predominantly genetic affliction, there are others factors which can contribute to its development even without a genetic predisposition. These elements include birth defects such as hypoxia and low birth rate, neuroanatomical anomalies, viral infections, along with low IQ and cerebral  atrophy (Hollandsworth, 1990). While these components in themselves are not sufficient enough to cause the disorder, they result in an increased risk for developing the disease. One theory for the cause of schizophrenia that has been studied with great validity is the dopamine hypothesis. This theory postulates that schizophrenia is caused by an overabundance of the dopamine-dependent areas of the brain causing an imbalance that affects the entire system (Hollandsworth, 1990). For this reason many of today’s schizophrenia treatment drugs inhibit dopamine receptor activity in an attempt to return it to its natural equilibrium. Although even with advances in modern science and new drugs being developed every day, the illness is still only treatable and its symptoms still emerge even with proper medication. Even with its origin unknown, scientists have discovered several chromosomes which when damaged or mutated, greatly increase the risk of developing schizophrenia. The chromosomes in particular that act as catalysts are chromosome numbers twenty-two, six, and eleven (Klar, 2004). Chromosome six contains several genes that are linked with immune response which has given rise to the belief that schizophrenia has some association with weakened disease fighting agents. While damage to this chromosome may be linked to the source of the ailment, it may only be the jump starter that kicks off the path to developing the illness. For as scientists know, a lacking immune response caused by chromosome damage can theoretically leave the body vulnerable to infection, which are facilitators that can bring about the emergence of the disorder (Hollandsworth, 1990). Chromosome twenty-two on the other hand is linked with the dopamine hypothesis as this area houses enzymes that aid in transporting neurotransmitters. These neurotransmitters, mainly catechol-O-methyltransferase (COMT) and proline dehydrogenase (PRODH) are essential for the breakdown of dopamine. Any disruptions in this particular area can trigger an overabundance or shortage of dopamine, potentially resulting in developing positive or negative schizophrenia symptoms (Chakravarti, 2002). Lastly, chromosome eleven has been associated with schizophrenia on the grounds of genetic translocation, or a chromosome abnormality caused by faulty rearrangements of various strands of DNA. These faults can occur in any number of genes, however during this process it occurs at times pivotal to cell division, making it easy for genes to be incorrectly rearranged (Klar, 2004). When this happens  it can potentially inhibit the development of lateralization of brain function and act as a precursor not only schizophrenia, but other forms of mental illness as well as cognitive impairments (Klar, 2004). Once the subject has developed schizophrenia it affects the brain in very specific ways. When the disorder itself first begins to emerge its early symptoms manifest themselves in a period called The Prodormal Phase (Neale &ump; Oltmanns, 1980). During this phase, which occurs anywhere from six to thirty months before the disease truly emerges, the person may experience social withdrawal , dysphoria, and irritability. As the disorder progresses the symptoms may become more intense, and newer or ‘positive’ symptoms may begin to surface. These positive symptoms can include visual and auditory hallucinations, delusions, and disorganized thought processes. In severe cases of thought process deterioration or cognitive slippage, a person can develop schizophasia or ‘word salad’ where a person’s speech is completely incoherent with no understandable thought or message. Following the positive symptoms of the illness, ‘negative’ symptoms can appear as well. These symptoms are aspects of the person’s personality that have been negated by the disease. They are most commonly expressed by the person’s flat or expressionless demeanor, apathy, very little displayed emotion, and continued peculiar behavior (Hollandsworth, 1990). After schizophrenia has completely manifested itself, the patient is usually classified into one of four types. These types are paranoid, disorganized, catatonic, and undifferentiated. Those in the paranoid group display an obsession over their delusions or ha ve hallucinations specifically related to a certain subject or idea, and are usually the most functional of all schizophrenics (Johnstone, 1994). Disorganized types are typically ones who display little emotion and act in a disjointed and inarticulate manner, while catatonic schizophrenics are merely ones who appear in torpor and display lethargic indolence. The undifferentiated type however is hybrid of the three previous types and is a miscellaneous combination of all their symptoms combined (Johnstone, 1994). While the outward symptoms may be relatively easy to recognize, inside the brain is a totally different matter. Schizophrenia can cause structural changes in the brain even though a specific cause for these changes is still unknown. These changes in brain structure are illustrated by larger ventricles, a thicker corpus collosum, a decrease in dendrite  spines in the frontal lobe, disordered hippocampal pyramidal cells, and a shrinkage of the cerebellar vermis, which is mainly responsible for perception. In some studies malformed neuronal migration has been observed which can lead to disjointed thoughts as well as an overall shrinkage of the hippocampus and amygdala (Johnstone, 1994). Due to these changes, a person suffering from the disorder can have reduced functioning in the frontal lobe which can affect their logic and critical thinking skills as well as their ability to successfully plan ahead. This reduced functioning is displayed in the Wisconsin card sorting test, which is administered to measure possible brain damage and assess the functioning of the frontal lobe. Schizophrenics who participate in the test show an inability to successfully transfer their attention to the rules of the exam once they begin. Functional imaging has also shown a lack of activity in the right hemisphere of the frontal lobe during their partaking, which does not increase as the task is administered. It is also shown that in a study by a Dr. Nagy in 1963, that of 260 cases of schizophrenia, roughly fifty-eight percent of the group had some form of cerebral atrophy (Johnstone, 1994). On a cellular level schizophrenia symptoms are thought to be caused by an overabundance of neurotransmitters released between neurons. These neurotransmitters, mainly dopamine and serotonin, in excess can cause hallucinations and delusions which are referred to as ‘positive’ symptoms. Too little of these neurotransmitters however can result in lack of emotion and motivation which mirror the ‘negative’ symptoms of the disorder. Another type of cell affected by schizophrenia is the pyramidal cell in the prefrontal cortex, or the forehead area of the brain. These cells, which are a type of neuron that serve primarily as excitation units in the prefrontal cortex, are shown to have a decrease in basilar dendrite numbers. These basilar dendrites arise from the base of the pyramidal cell’s soma, and with a decrease in their numbers it can indicate a shortened synaptic surface area resulting in possible fallacious thought processing (Broadbelt, Byne, &ump; Jo nes, 2002). Pyramidal cells in the hippocampus are also known to be affected by the disorder can and cause many of the cells in that area to be thrown into disarray, causing cognitive malfunctions. The treatment of this disorder can vary greatly depending on the person; however dopamine inhibiting antipsychotics are a very popular remedy. Although prevalent, these  medications are not perfect and many scientists claim there is still no concrete connection that schizophrenia is exclusively a result of faulty dopaminergic transmissions (Neale &ump; Oltmanns, 1980). It has also been noted that many of the dopamine inhibiting drugs serve only to combat the positive symptoms and leave many of the negative symptoms such as emotional absence unaffected. Another treatment that is still widely used, but much less common is electroconvulsive therapy or shock therapy. This treatment is still very controversial but there has been success in treating schizophrenia symptoms completely, although many patients relapse within six months. Studies have also indicated that although this treatment can be effective there are risks of permanent brain damage. According to Dr. Peter Breggin (2008), a psychiatrist at the State University of New York, shock therapy in animal testing showed statistically significant brain structural abnormalities when compared to animals without it. His study showed the electrical shocks caused changes in the nerve cell walls causing gliosis, or a profound increase in the number of astrocytes in impaired areas of the central nervous system (Breggin, 2008). In conclusion, schizophrenia is unique disorder that affects the brain in many ways, yet manifests itself differently from person to person. As there is no tangible rubric for how the disorder will impact the person, it can be a difficult illness to treat. Its effects on the brain, from enlarged ventricles to a decline in dendrite spines, shows the major impact the illness can have on living a normal life. Although the disorder afflicts just over fifty-eight million people worldwide it is still devastating to those who are affected and while the medical community makes leaps and bounds in understanding the disease, a cure is still far from the horizon. With psychology grant money from universities being invested predominantly in neuropsychology, perhaps sometime in the near future scientists will be able to fully understand this illness and find a successful and permanent cure for it.

Advantage of internet in doing business

Convenience Reduced or no face to face contact with the customer. The business schedules time for customer response rather than being at the demand of the customer , as In telephone or face-to-face contact Business can attend to their customers at any time, not just during normal trading hours Vela social network, business can not only communicate with customers quickly but also retrieve customers' feedback Immediately and directly. SavingsNo shop rent If business Is only conducted on the Internet May need less staff and enables to hire excellent workers from all over the world for various tasks, such as: translating Job, business writing or seeding, code writing for website. Having a website Is a constant form of advertising to the public as It means information is available about services, products, business, promotions, contact detail, etc Business does not need to transport goods from ware house to shop, but an send them directly to the customers from the warehouse.Save marketing cost: traditional mass marketers have to send out thousands of postal mails to customers in order to introduce new products or services. Owing to internet, namely electronic mail (email) business saves such big amount of cost for postal expense and email printing cost. Speed Orders can be sent immediately, and transactions can be settled online. Funds are electronically transferred from the customers' account to the business after authorization.The transaction date is collected in electronic form and entered into an accounting package. Via social network, business can not only communicate with customers quickly but also retrieve customers' feedback immediately and directly instead of positively waiting for customers' comments via phone or complaint letter. Quickly reach target customers and study characteristic of target markets

Bible & Internet

1 In the beginning God created the heavens and the earth. 2 Now the earth was formless and empty, darkness was over the surface of the deep, and the Spirit of God was hovering over the waters. -Day 1 – God created light and separated the light from the darkness, calling light â€Å"day† and darkness â€Å"night. † 3 And God said, â€Å"Let there be light,† and there was light. 4 God saw that the light was good, and he separated the light from the darkness. 5 God called the light â€Å"day,† and the darkness he called â€Å"night. † And there was evening, and there was morning—the first day. And God said, â€Å"Let there be a vault between the waters to separate water from water. † 7 So God made the vault and separated the water under the vault from the water above it. And it was so. 8 God called the vault â€Å"sky. † And there was evening, and there was morning—the second day. -Day 2 – God created an expanse to separate the waters and called it â€Å"sky. † 9 And God said, â€Å"Let the water under the sky be gathered to one place, and let dry ground appear. † And it was so. 10 God called the dry ground â€Å"land,† and the gathered waters he called â€Å"seas. † And God saw that it was good. 1 Then God said, â€Å"Let the land produce vegetation: seed-bearing plants and trees on the land that bear fruit with seed in it, according to their various kinds. † And it was so. 12 The land produced vegetation: plants bearing seed according to their kinds and trees bearing fruit with seed in it according to their kinds. And God saw that it was good. 13 And there was evening, and there was morning—the third day. -Day 3 – God created the dry ground and gathered the waters, calling the dry ground â€Å"land,† and the gathered waters â€Å"seas. † On day three, God also created vegetation (plants and trees). 4 And God said, â€Å"Let there be lights in the vault of the sky to separate the day from the night, and let them serve as signs to mark sacred times, and days and years, 15 and let them be lights in the vault of the sky to give light on the earth. † And it was so. 16 God made two great lights—the greater light to govern the day and the lesser light to govern the night. He also made the stars. 17 God set them in the vault of the sky to give light on the earth, 18 to govern the day and the night, and to separate light from darkness. And God saw that it was good. 9 And there was evening, and there was morning—the fourth day. -Day 4 – God created the sun, moon, and the stars to give light to the earth and to govern and separate the day and the night. These would also serve as signs to mark seasons, days, and years. 20 And God said, â€Å"Let the water teem with living creatures, and let birds fly above the earth across the vault of the sky. † 21 So God created the great creatures of the sea and every living thing with which the water teems and that moves about in it, according to their kinds, and every winged bird according to its kind. And God saw that it was good. 22 God blessed them and said, â€Å"Be fruitful and increase in number and fill the water in the seas, and let the birds increase on the earth. † 23 And there was evening, and there was morning—the fifth day. -Day 5 – God created every living creature of the seas and every winged bird, blessing them to multiply and fill the waters and the sky with life. 24 And God said, â€Å"Let the land produce living creatures according to their kinds: the livestock, the creatures that move along the ground, and the wild animals, each according to its kind. And it was so. 25 God made the wild animals according to their kinds, the livestock according to their kinds, and all the creatures that move along the ground according to their kinds. And God saw that it was good. 26 Then God said, â€Å"Let us make mankind in our image, in our likeness, so that they may rule over the fish in the sea and the birds in the sky, over the livestock and all the wild animals,[a] and over all the creatures that move along the ground. † 27 So God created mankind in his own image, in the image of God he created them; male and female he created them. 8 God blessed them and said to them, â€Å"Be fruitful and increase in number; fill the earth and subdue it. Rule over the fish in the sea and the birds in the sky and over every living creature that moves on the ground. † 29 Then God said, â€Å"I give you every seed-bearing plant on the face of the whole earth and every tree that has fruit with seed in it. They will be yours for food. 30 And to all the beasts of the earth and all the birds in the sky and all the creatures that move along the ground—everything that has the breath of life in it—I give every green plant for food. And it was so. 31 God saw all that he had made, and it was very good. And there was evening, and there was morning—the sixth day. -Day 6 – God created the animals to fill the earth. On day six, God also created man and woman (Adam and Eve) in his own image to commune with him. He blessed them and gave them every creature and the whole earth to rule over, care for, and cultivate. -Day 7 – God had finished his work of creation and so he rested on the seventh day, blessing it and making it holy.

A Day in a Life: a Summary of the Case and Some Questions Essay

* Summary of the case This case shows a daily working life of Rachel, the project manager of a large information systems project, to mainly discuss whether she allocates her time appropriately or not. When we take a closer look at her works on that certain day, then we can classify those works into three parts: project related, non- project related, and routine works. After analyzing those works each by each, therefore we are able to get the concept easily of whether Rachel has been playing a good role in project manager. No matter the answer turns out to be yes or not, we still can improve her work schedule more efficient by viewing the result of our analysis. * Answers of the questions 1. How effectively do you think Rachel spent her day? Based on the whole day schedule provided by the case, I would like to make a table to address how effectively Rachel spent her day. The consequence above shows that Rachel spent around 70% of her working time dealing directly with project related work. Due to everyone has different aspects in judging how effectively of Rachel regarding to the figure, from my point of view, when a manager who can spend his or her time on project work beyond 65%, then I would probably consider he or her is an effective project manager. So, therefore, in this case, Rachel is no doubt to be positive asset to her company for sure. See more: Beowulf essay essay 2. What does the case tell you about what it is like to be a project manager? a. Outlining specific goal for teammates As an appropriate project management, he or she must act like a captain of a big ship understanding exactly which way we should move on in the center of the huge ocean. Project management not only has to have good sense of direction, but also has to monitor what is going on in each phase. People says that the performance of the team is not determined by the most outstanding teammates, instead; is determined by the weakest one. That is being said, making sure the slowest part to catch up the pace of the whole team is one of the imperative job of project manager. b. Integrating diversified workers from different department One of the most hardest and special part of being a product manager is to integrate diversified people from different department. Due to project team sometimes is temporary and short, different field’s people they don’t know each other well, so that it might occur lots of conflicts during cooperating period of time. From my personal experience over the past few years, tasks failed not because workers didn’t have the ability to fulfill the task itself which was because they spent too much energy and time on dealing with each other because each individual has his or her opinions. Therefore, if project manager doesn’t have outstanding social skills to lead each worker, no matter how smart he is, then he is not able to complete the mission as he expect. c. Being an optimistic cheerleader and powerful coordinator between each department Most of time working is frustrated especially as a member of a new team. Sometimes, workers not only have to be responsible to project manager but they also still have to do original tasks from their regular team. How can they be cheerful if pressures come from both sides of the supervisor? Thus, project manager somehow should be a cheerleader to give these teammates some sort of incentives such as extra bonus or holidays, asked from big boss, to motivate them to get the tasks done as soon as possible. Moreover, product manager needed to be powerful in order to coordinate conflicting issues between each department. Take this case for example. Client firm is upset because they didn’t get certain features which promised by marketing representative and Rachel had no clues about it until she hears from one of the members. We all know project manager is of course the head of the project, but if Rach el has no power to get the features promised my marketing representative to her client, and then next time her client won’t become company’s loyal customer again. d. Take full responsibility that project is completely successful within time and budget Unlike other functional manager, project manager takes full responsibility in entire project which should be successful within time and budget (professor mentioned in reality it is better to beyond the budget in order to get extra amount of money for next one). So, from this point of view, there is no other job like project manager in terms of huge pressure. On the other hand, some people might think to be a project manager can feel a great deal of sense of achievement as long as finishing the task. Therefore, project manager is a job which needs all kinds of ability including organizing, allocating resources, communicating, cheering people, coordinating, politic skill, and so on. * Insights of the case A number of things I have learned from this case. First of all, Rachel, even though, spent 70% of her daily working time on dealing with project’s work directly, it doesn’t mean that she did effectively in the project itself. In other words, she still can save her time by taking care of client firm issue thoroughly and cautiously. Again, let’s take client firm’s case for instance. Regarding to the time table above, Rachel spent 130mins (25% of her total working time) just on handling this case! Is there any other way to prevent this kind of incident happened? Answer would be yes by having a great report system among each department’s head and Project manager, so that before things going to the public or to client’s side, they still have a plenty of chances to make it right, otherwise; they have no choice but to waste more costs (time and money) to correct it again. Moreover than that, clients might have a negative experience on it and start to doubt whether this company has enough ability to handle this project. So, my point is that if Rachel were powerful enough; she would be able to handle this project more effectively. Thus, her boss needs to give her adequate resources during this period of time. As a project manager, although she has power in hand, she also has to use it very careful, otherwise as project team dismissed in the future, then she would face a big problem in terms of working with her fellow workers. This is really a good case which gives me a whole profile of being a project manager. With this case’s help, I feel more knowledgeable of learning Project Management this class in this semester. * Reference 1. By answering the question 2 above, I referred to text book page 10, the topic of â€Å"The Project Manager†, which giving me a several numbers of responsibilities that project manager should have. 2. Slides in Chapter 1 (slides 1-11 and 1-12) also give me some points of view that what skills are needed as being a project manager.

Reflect on your own experience of change and change management Case Study - 1

Reflect on your own experience of change and change management - Case Study Example At the location where I used to previously work, there existed a lot of disorder especially when it came to organizing reports, which concerned with applications of multiple softwares, given that the interface linking softwares at times created difficulty (Gill, 2002). The challenges that we encountered while using various applications at the same time resulted in the ultimate report seeming to be rather disorganized in some instances. Having gone through such an experience prepared me sufficiently for the challenges in the field, and I learnt numerous lessons that have assisted me ever since. Obviously any new experience presents new impediments in the smooth flow of work since countless alterations have to be enforced for continuity of business as usual. I was impelled to work extra hard in my endeavour to prove my theory of change as the best and only way out of the old fashioned system. Eventually, just as the old saying goes, â€Å"Good things come to those who wait,† my tireless efforts were manifested when the management succumbed and eventually implemented my change theory. The change was not instant. It took quite a while until it began to seem that my efforts were an exercise in futility. Nevertheless I possessed the deep conviction that somehow there ought to be someone in our clientele who would notice the sweeping and impeccable presentation of data in our company. I also had a team that was not demoralised and which had presumably higher hopes than mine considering the fact that my theory of change was foreign to them before I raised it. With time, it was apparent that the company had to change with the times hence i was personally requested to overlook the overhauling of the system in its entirety with the assistance of professionals from other companies and of course my loyal team members. By the end of the overhaul of the system, I had a boosted

Whatever you choose Essay Example | Topics and Well Written Essays - 750 words - 2

Whatever you choose - Essay Example All these units are arranged in hierarchical manner with specific responsibilities as well as tasks which they are obliged to carry out so as to maintain Nokia at its extreme levels of performance. In addition to the above information, it is important for one to know the role played by each unit that makes up Nokia organizational structure. Principally, the responsibility of managing all the operations of Nokia lies in the hands of the Group Executive Board of Nokia. The Chairman together with other members of the group is elected into their respective positions by the Board of Directors. The â€Å"devices† unit on the other hand carries the role of developing in addition to managing the portfolio of mobile devices that are produced for consumers. The â€Å"services† unit designs and develops Internet services that enable people to enjoy using mobile devices and the web. The â€Å"solutions† unit provides solutions to complications related to mobile devices, personalized devices as well as content integrated to consumers’ package. The â€Å"markets† unit is given the responsibility of ensuring that supply chains, brand, and marketing takes place successfully. It is also responsible for supplying devices, offering services as well as solutions to the consumers. Like other units, Corporate Developing unit plays very significant roles. â€Å"It offers operational support devices, services, solutions, and markets† (â€Å"Organizational Structure of Nokia Company†). Corporate Developing is also responsible for not only exploring corporate strategies, but also future growth opportunities for Nokia. Additionally, â€Å"Nokia-Siemens Network† is a unit of Nokia that carries the role of providing wireless along foxed network infrastructure communications in addition to networks service platforms. This unit also offers professional services both operators and service providers. Lastly but not least, NAVTEQ leads in providing comprehensive digital map data that