Deinking of Xerographic Wastepaper

This study was made to determine a method that would deink xerographic wastepaper effectively. The study was done in two parts, the first being a preliminary feasibility study of the deinking methods found in a literature search. The second part involved a further study of the temperature variable of the most feasible method found in the first part. The results indicated that the flotation method would deink xerographic wastepaper very effectively. Temperatures between 130oF and 190oF were used during the pretreatment stage of the flotation method but no significant change was found in deinkability

Exploring Joint Custody: Interviews with College Students About Their Childhood Experiences

This exploratory study provides a greater understanding of the impacts of joint custody on college students. Researchers in this field of study have yet to examine the experiences of children in joint custody arrangements in depth to this date. Interviews were conducted with ten college students who grew up in joint custody arrangements. The college men and women were asked to reflect back on their experiences of their joint custody arrangements. Findings provide a greater awareness of how college students describe their experiences growing up, including residing the majority of weekdays with their mothers and long weekends with their fathers. Parents’ homes also remained relatively close. The benefits of joint custody reported by participants included that they enjoyed having two homes and would not have wanted another custody arrangement. Meanwhile, findings show college students’ challenges with joint custody included, packing/forgetting belongings as well as adjusting to their father’s new home(s). College students described their parent’s new relationships as impacting factors on their relationships with their parents, but they added time helped heal their connection. Suggestions and recommendations to children and parents with joint custody were given by participants, such as; for children to communicate with parents and for parents to keep the peace with each other. Suggestions and recommendations were also given to lawyers and judges involved in joint custody arrangements, which included that each parent should be given equal opportunity to obtain custody and/or residential custody. Ideas for future research are provided as well

The impact of consumer demands and trends on food processing.

In the United States, consumer demand for new foods and changes in eating habits and food safety risks are affecting the food processing industry. The population is becoming older on average; moreover, consumers want fresh and minimally processed food without synthetic chemical preservatives. To address the need for safer food and compete for consumer acceptance, manufacturers are exploring new food processing and preservation methods

Are gravitational waves from giant magnetar flares observable?

Are giant flares in magnetars viable sources of gravitational radiation? Few theoretical studies have been concerned with this problem, with the small number using either highly idealized models or assuming a magnetic field orders of magnitude beyond what is supported by observations. We perform nonlinear general-relativistic magnetohydrodynamics simulations of large-scale hydromagnetic instabilities in magnetar models. We utilise these models to find gravitational wave emissions over a wide range of energies, from 10^40 to 10^47 erg. This allows us to derive a systematic relationship between the surface field strength and the gravitational wave strain, which we find to be highly nonlinear. In particular, for typical magnetar fields of a few times 10^15 G, we conclude that a direct observation of f-modes excited by global magnetic field reconfigurations is unlikely with present or near-future gravitational wave observatories, though we also discuss the possibility that modes in a low-frequency band up to 100 Hz could be sufficiently excited to be relevant for observation.Comment: 4 pages, 3 figures. Further information can be found at http://www.physik.uni-tuebingen.de/institute/astronomie-astrophysik/institut/theoretische-astrophysik/forschung.htm

The runaway instability in general relativistic accretion disks

When an accretion disk falls prey to the runaway instability, a large portion of its mass is devoured by the black hole within a few dynamical times. Despite decades of effort, it is still unclear under what conditions such an instability can occur. The technically most advanced relativistic simulations to date were unable to find a clear sign for the onset of the instability. In this work, we present three-dimensional relativistic hydrodynamics simulations of accretion disks around black holes in dynamical space-time. We focus on the configurations that are expected to be particularly prone to the development of this instability. We demonstrate, for the first time, that the fully self-consistent general relativistic evolution does indeed produce a runaway instability.Comment: 5 pages, 3 figures, minor corrections to match published version in MNRAS, +link to animatio

Osteitis pubis

This issue of eMedRef provides information to clinicians on the pathophysiology, diagnosis, and therapeutics of osteitis pubis