10,257 research outputs found
Congruences Among Power Series Coefficients of Modular Forms
Many authors have investigated the congruence relations amongst the
coefficients of power series expansions of modular forms in modular
functions . In a recent paper, R. Osburn and B. Sahu examine several power
series expansions and prove that the coefficients exhibit congruence relations
similar to the congruences satisfied by the Ap\'ery numbers associated with the
irrationality of . We show that many of the examples of Osburn and
Sahu are members of infinite families.Comment: 24 page
Efficient and Playful Tools to Teach Unix to New Students
Teaching Unix to new students is a common tasks in many higher schools. This
paper presents an approach to such course where the students progress
autonomously with the help of the teacher. The traditional textbook is
complemented with a wiki, and the main thread of the course is a game, in the
form of a treasure hunt. The course finishes with a lab exam, where students
have to perform practical manipulations similar to the ones performed during
the treasure hunt. The exam is graded fully automatically. This paper discusses
the motivations and advantages of the approach, and gives an overall view of
the tools we developed. The tools are available from the web, and open-source,
hence re-usable outside the Ensimag.Comment: ITiCSE, Darmstadt : Germany (2011
For Our Children: Childcare Concerns Link Postal Workers Across the Racial Divide in San Fransisco
[Excerpt] Celebrating diversity — it\u27s the latest trend for justice-minded union and community activists. Management, too, is interested in diversity: note the steady stream of articles, books, and seminars for business executives on the subject. Even President Clinton stated his desire to create an administration that looks like America.
Listening to a union activist share her experiences of 20 years in the U.S. Postal Service is a good way to bring a dose of realism to the diversity hype. Karen Wing, a Chinese-American woman who is a shop steward and clerk in the San Francisco General Mail Facility, knows how very hard it is to build understanding and lasting unity among different nationalities.
More than anything else, unions and activists trying to implement diversity programs need to emphasize patience and perseverance, Wing says. This is especially true on the shop floor, where workers may not have the full power of the international or local union structures behind them. The question Wing faced in her local was How do you organize in a diverse workplace when you are essentially \u27on your own?\u27
The problems are enormous. As a shop steward, people often come to Wing with their complaints. Some pro-union black workers ask, Why don\u27t those Asians speak English? Are they talking about me? Look how they play up to management, they don\u27t even care about the union. On the other hand, some Asian immigrant workers ask Wing, How can you work in the union? I can\u27t be a shop steward — my English isn\u27t good enough. And those black people are always complaining about work.
Handling remarks like these is not easy. How do you fight a management that deliberately stirs up racial antagonisms? How do you build a union responsive to a diverse workforce?
For Wing, meeting these challenges on the shop floor begins with knowing the history and changes occurring within the workplace
VEIL Ballarat centre structural plan
This report looks at the future devlopment in Ballerat, Victoria. New forms of urban planning, housing and also transport and use of natural resouces are some of the major topics covered. (1) BALLARAT - THE LOCALLY PRODUCTIVE CITY
Goal: All precincts in Ballarat (exemplified by the CBA) aim to maximise production of environmentally and socially critical resources.Target: To be a net exporter in as many of the following areas as possible:
Renewable energy - diverse systems - wind, solar, geothermal, biomass
Water - rainwater, grey water, recycled
Food production - close to points of consumption
Community services
Knowledge - research, innovation, education and skills. E.g: climate adaptation solutions; low-carbon solutions; sustainable agriculture (food and bio-mass)
Green businesses, green services, eco-innovation (agricultural best practice and re-mining) "green zone"
(2) BALLARAT - THE LOW CONSUMPTION CITYGoal: Living and Working Better - Consuming LessTarget: To develop the highest quality of living and working conditions with the lowest per-capita consumption and production of waste, in as many of the following areas as possible:
Greenhouse gas (e.g. target: reductions of greater than 60%)
Electricity use (e.g through retrofitting - 40% reduction)
Water: (e.g. target 80 litres/person/day of reticulated potable water)
Transport /mobility (e.g. target greater than 30% shift from car to walking & cycling; 25% reduction in car trip distances; 40% increase in public transport use)
Waste reduction (e.g, in all sectors,40%)
(3) BALLARAT - THE REGENERATIVE CITYGoal: Avoiding cascading breakdown effects, enabling quick bounceback from challenges - creating a social and physical fabric that is diverse, decentralised and locally inter-connected, so that any shocks (environmental or economic) will be limited in the spread of their effects.Target: To approach all planning and design decisions with the intent of increasing the diversity of communities, production systems (as in 1, above) and public facilities, particularly in relation to:
access to energy, water, food, transport,
the provision of work and residential facilities
life in extreme weather conditions
community engagement
(4) BALLARAT - THE INVENTIVE CITYGoal: To achieve all of above through the development of innovative new solutions and approaches, building on the strong history of inventiveness and creativity in Ballarat (in agriculture and mining in particular).Target: Ballarat to be known nationally and internationally as supporting a culture of creative risk-taking, experimentation, and innovation in relation to climate resilience and sustainable solutions
The linewidth of a non-Markovian atom laser
We present a fully quantum mechanical treatment of a single mode atom laser
including pumping and output coupling. By ignoring atom-atom interactions, we
have solved this model without making the Born-Markov approximation. We find
substantially less gain narrowing than is predicted under that approximation.Comment: 4 pages, 1 encapsulated postscript figur
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