Big Ball Research Articles

Our Version of Normal

Our Version of Normal

Synthesis of nano Ti(C,N) powder by mechanical activation assisted carbothermal reduction nitridation

Nano Ti(C,N) powder was synthesised by mechanical activation assisted carbothermal reduction nitridation (MCRN) in this study. The starting powders of nano anatase/carbon black were activated first through high energy mechanical milling, then the milled powders were CRN treated at 1200 or 1250°C for 2 h, Ti(C,N) powder with average particle size of below 100 nm was obtained finally. Effects of main mechanical milling factors on anatase CRN reaction were investigated, including milling time, ball to powder weight ratio and milling speed. The mechanism of MCRN synthesising nano Ti(C,N) powder was also discussed in detail. The products were characterised by X-ray diffraction and scanning electron microscope. The results indicate that longer milling time, bigger ball to powder weight ratio and higher milling speed will be beneficial to MCRN reaction.

Submerged Anaerobic Membrane Bioreactors (SAMBR): Ready for the Big Ball?

Submerged Anaerobic Membrane Bioreactors (SAMBR): Ready for the Big Ball?

In Praise of Pluralism. A Comment on Borsboom

In Praise of Pluralism. A Comment on Borsboom

Is there evidence to support the use of constraint-induced therapy to improve the quality or quantity of upper extremity function of a 2 ½-year-old girl with congenital hemiparesis? If so, what are the optimal parameters of this intervention?

The purpose of “Evidence in Practice” is to illustrate how evidence is gathered and used to guide clinical decision making. This article is not a case report. The examination, evaluation, and intervention sections are purposely abbreviated. A 28-month-old girl came to our physical therapy department with left-sided spastic hemiparesis, the result of a right cerebrovascular accident (CVA) in utero. Although she had delays in gross and fine motor development because of her hemiparesis, her cognitive and language development were typical for her age. Spontaneous use of her left upper extremity (UE) was markedly impaired in both quantity and quality of movement; however, she was able to use the left UE with prompting when she was given a 2-handed task (eg, holding a “sippy” cup with handles, holding a big ball with 2 hands) or when her right UE was therapeutically constrained. The child’s parents were well educated and well versed in therapeutic opportunities for improving left UE function, and they approached our university through their primary physical therapist to investigate the opportunity of involving their daughter in a student research project on pediatric constraint-induced therapy (PCIT). Through their support and information network, they had heard many anecdotal success stories related to the use of PCIT with children with sensory and motor impairments in the UE, and they were excited at the prospect of their daughter receiving this intervention. They contacted researchers conducting controlled clinical trials on PCIT in Alabama and New York. They put their child on a waiting list for a program at a university conducting PCIT clinical trials, but they recognized many drawbacks to attending this program, including the financial burden and the need to leave their home. The child was without any major medical complications or procedures since her diagnosis at 6 months of age. Upon diagnosis, …

Big Blue Ball - Pictures, People, Place: An Intercultural Playground for Creative Conversations

Big Blue Ball - Pictures, People, Place: An Intercultural Playground for Creative Conversations

VIRTUAL REALITY LAB RATS ARE ON THE BALL

![Figure][1] It reads like science fiction, but Christian Holscher and collaborators in Hanspeter Mallot's team at Tubingen University have designed an ingenious virtual reality machine for rodents ([p. 561][2]). Rats happily run along on a big ball, deftly navigating through a virtual

Energy decay for the wave equation in exterior domains with some half-linear dissipation

We study the decay estimates of the energy for the wave equation in an exterior domain with a localized dissipation. The dissipative term consists of the following two parts: The first part may be nonlinear and localized in a suitable bounded area, while the second part is linear in the outside of a big ball. So we may call such a dissipation ``half-linear" dissipation. We note that no geometrical condition is imposed on the boundary. As an application of the decay estimates we prove some global existence theorems for the wave equation with a nonlinear source term.

Vegetational Analysis and Floristics of Four Communities in the Big Ball Hill Region of Padre Island National Seashore

Vegetational Analysis and Floristics of Four Communities in the Big Ball Hill Region of Padre Island National Seashore

Reconstructing Times Square: politics and culture in urban development

When the big ball drops on New Year's Eve, thousands are there to witness that great glittering sight, while millions more watch on national television. Times may be the cultural hub of America, the Crossroads of the World, but its lights have not always shone as brightly as they do now. Once a glamorous theater district, Times and 42nd Street had degenerated into a neighborhood known for the winos and sex shops of Midnight Cowboy until New York's business and arts communities stepped in. These advocates of urban revitalization exploited cultural and historic preservation arguments to transform a low-income entertainment district into a Disney-fied tourist mecca. Where Ratso Rizzo once kicked cars and hookers plied their trade, Mickey Mouse now greets visitors from atop a Disney superstore surrounded by rising office towers, theaters, and theme restaurants all thanks to huge tax subsidies and government support. Alexander Reichl tells the fascinating story of how cultural politics and economic greed transformed the city's physical and social environment with an ongoing multibillion-dollar redevelopment program, changing the district from a symbol of urban decline to one of urban renaissance. He explains the political significance of the historic preservation and arts-related approach to urban revitalization, showing how it was used to appeal to the upscale values of middle-class New Yorkers often hostile to urban renewal. He also examines the role of the Walt Disney Company in the project and demonstrates its power to redefine a premier public space. In telling the story of Times Square, Reichl reveals much about politics and power at the city level and their relationship to the development of urban space. He frames his lively narrative with an illuminating account of how historic preservation initiatives at all government levels have displaced large-scale federal urban renewal programs as the dominant approach to urban development, and he shows the importance of political discourse and cultural politics in mobilizing public support for urban redevelopment. Now that it has been reconfigured for the 21st century, Times provides a rich and multifaceted case for exploring the latest trends in urban renewal. Yet Reichl suggests much that has happened here is regrettable: the ousting of low-income citizens to serve commercial interests, the loss of a culturally diverse entertainment district, and the failure to address persistent class- and race-based segregation in a central urban area. By getting to the heart of the Great White Way, Reconstructing Times Square provides an important look at urban renewal-and politics in a changing America.

Finite clusters in high density Boolean models with balls of varying sizes

In this paper we study finite clusters in a high density Boolean model with balls of two distinct sizes. Alexander (1993) studied the geometric structures of finite clusters in a high density Boolean model with balls of fixed size and showed that the only possible structure admitted by such events is that all Poisson points comprising the cluster are packed tightly inside a small sphere. When the balls are of varying sizes, the event that the cluster consists of k1 big balls and k2 small balls (both k1, k2 ≥ 1) occurs only when the centres of all big balls are compressed in a small sphere and the centres of the small balls are distributed uniformly inside the region formed by the big balls in such a way that the small balls are totally contained inside the big balls. We also show that it is most likely that a finite cluster in a high density Boolean model with varying ball sizes is made up only of small balls.

Finite clusters in high density Boolean models with balls of varying sizes

In this paper we study finite clusters in a high density Boolean model with balls of two distinct sizes. Alexander (1993) studied the geometric structures of finite clusters in a high density Boolean model with balls of fixed size and showed that the only possible structure admitted by such events is that all Poisson points comprising the cluster are packed tightly inside a small sphere. When the balls are of varying sizes, the event that the cluster consists of k 1 big balls and k 2 small balls (both k 1, k 2 ≥ 1) occurs only when the centres of all big balls are compressed in a small sphere and the centres of the small balls are distributed uniformly inside the region formed by the big balls in such a way that the small balls are totally contained inside the big balls. We also show that it is most likely that a finite cluster in a high density Boolean model with varying ball sizes is made up only of small balls.

Marketing

When the big ball comes down in Times Square on January 1, 2001, a lot of seemingly far‐sighted company and product names such as 20th Century Fox, 20th Century Funds, and Gateway 2000 will become anachronisms.

Effect of Binder Characteristics on the Strength of Agglomerates Prepared by the Wet Method.

The effect of the physicochemical properties of binders on the strength of agglomerates prepared by the wet method was investigated using untreated and surface trimethylsilylated glass beads as model powders. The crushing test of granules and the bending test of molded tablets were carried out in order to estimate the strength of the agglomerates. A quantitative approach based on the work of Rumpf et al. was attempted to obtain the strengths between two contacting particles. The calculated values were in fair agreement with those obtained by the separation test using two big balls. In all the systems, the agglomerates prepared from surface treated glass were weaker in strength than those from untreated glass. In conclusion, it was apparent that the strength of an agglomerate was related both to the wetting of a particle by a binder solution and to the binder cohesion.

A dynamic model for the demonstration of planetary motions or 'celestial mechanics on the desk'

A dynamic model for the demonstration of planetary motion is described. It is a rubber membrane strained on a ring and pulled down in its middle. The 'planets' of the model are small balls moving on the rubber surface. The force acting on the balls is inversely proportional to the distance from the centre so only Kepler's second law is valid for the motion of the balls. The velocity hodograph of the Kepler motion is analysed theoretically and experimentally. The phenomenon of the perturbation of the real planet's motion is modelled, too, with the help of a somewhat bigger ball which also deforms the rubber-surface in its neighbourhood. All the essential cases of the perturbation are modelled, as is the special case: the motion in the Lagrangian-5 resonance point.

Passenger in transit

This second piece by a Latin American about exile explores through that experience many aspects of his people's ‘personality’ and the events leading to exile. Tito Valenzuela is a 37-year-old Chilean poet and … now … novelist. After studying painting and graphic design at the School of Fine Arts of the University of Chile in Santiago, he worked during the years of Salvador Allende's Popular Unity government in film-making and television. A book of his poetry was published in 1971, and more appeared in an anthology of work by young Chilean poets in 1972. At the time of the military coup of 11 September 1973 he was working on a film on the nitrate mining area of northern Chile. During the coup the military raided his home, removing books and manuscripts. After living clandestinely for several months, Tito left the country for Peru. Unable to remain there he took up an offer by the United Nations to go to Rumania. Finding the atmsophere there restrictive and stifling, he left for Sweden, where he worked in a ham factory, then travelled on to Berlin and finally London in 1975. After a long battle with British immigration authorities he was given permission to stay. Pasajero en transito (‘Passenger in Transil’) is Tito Valenzuelas's first novel, as yet unpublished. It concerns a young Chilean photographer, Ignacio (García, who is exiled (like the author) first in Bucharest and then in Stockholm. The protagonist's profession is itself an image of his psychological state, where the past freezes in the present, tending to mystification and distortion. By tracing Ignacio's obsessions in exile and the deterioration in the past of his relationship with Soledad … who disappears during the first days of the coup … the novel explores the Chile of both Allende and the months following the coup, as well as exile itself. The extract we publish finds Ignacio in Bucharest, playing chess with another exile, Pedro ‘El Peluca’ Morales, whose situation is also producing crisis and domestic rupture. Certain references need explanation. Chileans make great use of nicknames, and most of the characters are referred to by these. El Peluca means ‘the wig’. Loco ‘crazy’ and El Caluga ‘the candy’ (as in sweet). Others have been translated - The Philologist, the Marquis. Coco is untranslatable. Huevón is the all-purpose Chilean interpolation, used incessantly, affectionately and in anger. Literally obscene, it means ‘big balls’. El Pedagogico is the Instituto Pedagogico, the Teacher Training Institute in Valparaiso. The Lebu was a ship used by the military as a prison during the military coup. Milico is slang for military. The tanquetazo was the attempted coup carried out by a tank regiment in June 1973.

Pengaruh Latihan Permainan Bola Basket, Futsal dan Motivasi Berprestasi terhadap Kebugaran Jasmani

This study aims to know the game of basketball, Futsal and motivation of the creation was who were high performing against health condition in SMAN 1 Parongpong. The Methods used to uncover this problem is the experimental methods with the design factorial 2 x 2. The sample using Cluster Random Sampling, the number of samples from 40 students. The Data using analysis of variance (ANOVA) and next exercise used test tukey. The study concluded that: (1), overall training with a basketball game better than futsal exercises the games for health condition student SMAN 1 Parongpong. (2) there is interaction between the big ball of achievement and motivation to, health condition (3) for learners who have high motivation, high achievers training with a basketball game better than with exercises futsal game against health condition student sman 1, lembang (4) for learners who have high motivation, low achievers there is no significant difference between training with a basketball game and exercise futsal game against student SMAN 1 Parongpong health condition. In other words the ability to their students could increase after these exercises, a basketball game futsal and motivation of students.Healthy condition.

Big bill's bunkum balls up chicago's schools

Big bill's bunkum balls up chicago's schools