In contrast to traditional analyses of minority business, the sociological analysis contends that minority business owner ship is a group-level phenomenon, in that it is largely dependent upon socialgroup resources for its development. Specifically, this analysis indicates that support networks play a critical role in starting and maintaining minority business enterprises by providing owners with a range of assistance, from the informal encouragement of family members and friends to dependable sources of labor and clientele from the owner’s ethnic group. Such self-help networks, which encourage and support ethnic minority entrepreneurs, consist of "primary" institutions, those closest to the individual in shaping his behavior. and beliefs. They are characterised by the face-to-face association and cooperation of persons united by ties of mutual concern. They form. an intermediate social level between the individual and larger "secondary" institutions based on impersonal relationships. Primary institutions comprising the support network include kinship, peer, and neighborhood or community sub groups.
A major function of self-help networks is financial support. Most scholars agree that minority business owners have depended primarily on family funds and ethnic community resources for investment capital. Personal savings have been accumulated often through frugal living habits that require sacrifices by the entire family and are thus a product of long-term family financial behavior. Additional loans and gifts from relatives forthcoming because of group obligation rather than narrow investment calculation, have supplemented personal savings. Individual entrepreneurs do not necessarily rely on their kin because they cannot obtain financial backing from commercial resources. They may actually avoid banks because they assume that commercial institutions either cannot comprehend, the special needs of minority enterprise or charge unreasonably high interest rates.
Within the larger ethnic community, rotating credit associations have been used to raise capital. These associations are informal clubs of friends and other trusted members of the ethnic group who make regular contributions to a fund that is given to each contributor in rotation. One author estimates that 40 percent of New York Chinatown firms established during 1900-1950 utilized such associations as their initial source of capital. However, recent immigrants and third or fourth generations of older groups now employ rotating credit associations only occasionally to raise investment funds. Some groups like Black Americans, found other means of financial support for their entrepreneurial efforts. The first Black-operated banks were created in the late nineteenth century as depositories for dues collected from fraternal or lodge groups, which them selves had sprung from Black churches. Black banks made limited investments in other Black enterprises. Irish immigrants in American cities organized many building and loan associations to provide capital for home construction and purchase. They in turn, provided work for many Irish home-building contractor firms. Other ethnic and minority groups followed similar practices in founding ethnic-directed financial institutions.
Which of the following can be inferred from the passage about rotating credit associations?
A. They were developed exclusively by Chinese immigrants.
B. They accounted for a significant portion of the investment capital used by Chinese immigrants in New York in the early twentieth century.
C. Third- generation members of an immigrant group who started businesses in the 1920’s would have been unlikely to rely on them.
D. Recent immigrants still frequently turn to rotating credit associations instead of banks for investment capital.
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Tomorrow evening about 20 million Americans will be shown, on their television screens, how easy it is to steal plutonium (钚) and produce "the most terrifying blackmail weapon ever devised" -- a homemade atomic bomb.
They will be told that no commercial nuclear plant in the United States -- and probably in the world -- is adequately protected against a well planned armed attack by terrorists, and that there is enough information on public record to guide a nuclear thief not only to the underground rooms of nuclear plants where plutonium is stored, but also to tell him how the doors of those underground rooms are designed.
The hour-long television programme, "The Plutonium Connection", makes its point by showing how a 20-year,old student of the Massachusetts Institute of Technology in five weeks designed an atomic bomb composed of plutonium and parts from a hardware atom.
The young man, whose identity is Being kept secret for fear he may be kidnapped by terrorists, is quoted as saying: "I was pretty surprised about how easy it is to design a bomb. When I Was working on my design, I kept thinking them’s got to be mom to it than this, but actually there isn’t. It’s simple."
The student worked alone, using information he obtained from science libraries open to the public. The television programme, produced for non-commercial stations across the country by a Boston educational station, shows how quantities of other "secret" information are available to anyone.
The Atomic Energy Commission’s public reading room in Washington is described by the narrator as "the first place a bomb-designer would visit when he was planning his plutonium theft. On file there and freely available are the plans of erery civilian nuclear installation in the country."
The programme seems certain to create enormous controversy -- not only over the lack of nuclear safeguards, but also over the morality of appointing the student to design a bomb and the wisdom of drawing attention to the ways that a nuclear thief can work.
Even an official of Public Broadcasting System, which is distributing the TV programme, confessed to uneasiness: "It’s a terribly important subject, and people should know about the dangers, but I can’t help wondering if the programme won’t give someone ideas."
"The Plutonium Connection" explains, for example, that the security systems of nuclear plants were all designed to prevent sabotage by perhaps one or agents of some foreign power. But now this appears less of a hazard than the possibility of an attack by an armed band of terrorists with dedicated disregard for their own lives.
The programme discusses two major plutonium reprocessing plants in the US -- one already operating in Oklahoma, one being completed in South Carolina -- neither of which has more than a handful of armed guards to supplement the alarms, fences and gun-detectors that Government security requires. Both are in such remote areas that it would take at least 45 minutes for a sizeable force to be assembled, if there were an attack.
An official of the South Carolina plant -- a joint operation of Allied Chemical, Gulf Oil and Royal Dutch Shen -- admits to television viewers that the "system we' ye designed would probably not prevent" a band of about 12 armed terrorists from entering.
Stealing plutonium is even easier, the programme suggests. Despite constant survey of all materials on the list, there are inevitably particles of plutonium unaccounted for -- about I lb a month at the Oklahoma plant, owned by the KerrMcGee oil company, which in a year adds up to enough to make an atomic bomb. It is suggested that stealing would be even easier if instrument technicians were unscrupulous enough to alter their measuring devices.
The television film also shows radioactive fuel being transported to nuclear processing plants in commercial armoured cars. As safet
A. To find out how to design a bomb.
B. To find out where to steal plutonium.
C. To look at files of secret information.
D. To find out where to steal an atomic bomb.
It looks as if it came straight from the set of Star Wars. It has four-wheel drive and rises above rocky surfaces. It lowers and raises its nose when going up and down hills. And when it comes to a river, it turns amphibious; two hydro jets power it along by blasting water under its body. There is room for two passengers and a driver, who sit inside a glass bubble operating electronic, aircraft-type controls. A vehicle so daring on land and water needs windscreen wipers --- but it doesn't have any. Water molecules are disintegrated on the screen’s surface by ultrasonic sensors.
This unusual vehicle is the Racoon. It is an invention not of Hollywood but of Renault, a rather conservative French state-owned carmaker, better known for its family hatchbacks. Renault built the Racoon to explore new freedoms for designers and engineers created by advances in materials and manufacturing processes. Renault is thinking about startlingly different cars; other producers have radical new ideas for trains, boats and aeroplanes.
The first of the new freedoms is in design. Powerful computer-aided design (CAD) systems can replace with a click of a computer mouse hours of laborious work done on thousands of drawing boards. So new products, no matter how
complicated, can be developed much faster. For the first time, Boeing will not have to build a giant replica of its new airliner, the 777, to make sure all the bits fit together. Its CAD system will take care of that.
But Renault is taking CAD further. It claims the Racoon is the world’s first vehicle to be designed within the digitised world of virtual reality. Complex programs were used to simulate the vehicle and the terrain that it was expected to cross. This allowed a team led by Patrick Le Quement, Renault’s industrial-design director, to "drive" it long before a prototype existed.
Renault is not alone in thinking that virtual reality will transform. automotive design. In Detroit, Ford is also investigating its potential. Jack Telnac, the firm’s head of design, would like designers in different parts of the world to work more closely together, linked by computers. They would do more than style. cars. Virtual reality will allow engineers to peer in side the working parts of a vehicle. Designers will watch bearings move. oil flow, gears mesh and hydraulics pump. As these techniques catch on, even stranger vehicles are likely to come along.
Transforming these creations from virtual reality to actual reality will also become easier, especially with advances in materials. Firms that once bashed everything out of steel now find that new alloys or composite materials (which can be made from mixtures of plastic, resin, ceramics and metals, reinforced with fibers such as glass or carbon) are changing the rules of manufacturing. At the same time, old materials keep getting better, as their producers try to secure their place in the factory of the future. This competition is increasing the pace of development of all materials.
One company in this field sealed composites. I't was started in 1982 by Burt Rutan, an aviator who has devised many unusual aircraft. His company develops and tests prototypes that have ranged from business aircraft to air racers. It has also worked on composite sails for the America’s Cup yacht race and on General Motors' Ultralite, a 100-miles-per-gallon experimental family car built from carbon fiber.
Again, the Racoon reflects this race between the old and the new. It uses conventional steel and what Renault de scribes as a new "high-limit elastic steel" in its chassis. This steel is 30% lighter than the usual kind. The Racoon also has parts made from composites. Renault plans to replace the petrol engine with a small gas turbine, which could be made from heat-resisting ceramics, and use it to run a generator that would provide power for electric motors at each wheel.
With composites it is possible
A. It swims.
B. It raises its nose.
C. It uses hydrojets.
D. It uses its four-wheel drived.
So far the Pontiff ______ to the demand.
A. has decided to give in
B. is not going to give in
C. has shown no sign of giving in
D. is ready to counterattack
Which of the following can be inferred from the passage about the Irish building and loan
A. They were started by third or fourth-generation immigrants.
B. They originated as off shoots of church-related groups.
C. They frequently helped Irish entrepreneurs to finance business net connected with construction.
D. They contributed to the employment of many Irish construction workers.