Polar Seas Oceanography describes a new tool called the Generic Model System for simulations and assessment of potential radioactive spreading in the Arctic regions, through rivers, estuaries, regional seas and the Arctic and Atlantic basin. It considers the present and future potential for spreading of radionuclear pollution from sources, such as from the major Russian processing plants through Siberian rivers as well as from European sources such as the UK Sellafield plant. The book provides support for decision making involving risk prevention, forecasting and readiness for probable crises, alerting and detection, relief and mitigation and damage assessment. It will be useful to managers, scientists and PhD students in the area of environmental nuclear safety. The book combines the expertise of professionals from the radionuclear and climate-change sciences.
Davina Gonzales doesn't think she's anything special, even though her uncle is a world famous detective. She and her friends Fabiola and DeBrina are like most seventh-grade girls in rural California. But Davina's life takes a strange twist when she gets an old radio for her twelfth birthday. It runs without electricity or batteries. It always plays her favorite songs. And it warns her that if she doesn't solve a mystery her best friend will die! The radio gives out riddles and puzzles to help her solve the mystery. Follow the three friends as they race against time to crack the clues and save DeBrina.
The increased prevalence of Attention Deficit Hyperactivity Disorder (ADHD) among Canadian and American children has introduced a surge in 'self-help' books marketed toward mothers. The perceived necessity for this has been shored up by scholarly and popular belief that raising an ADHD child is a stressful, burdensome and over-whelming responsibility. The perception is that these mothers are in need of advice and guidance in order to rise to the challenge. ADHD, marked by impulsivity, inattention and hyperactivity, is frequently misinterpreted as a result of poor mothering despite professional efforts to define it as a biologically predetermined disorder independent of socialization. Despite professional allegiance to the biological definition of the disorder, much academic focus has been directed toward discovering maternal pathology and dysfunction. This book provides a much needed counter perspective to current stereotypes about mothers of ADHD children as ill-quipped or pathological. Relying on large-scale quantitative data, Patricia E. Neff provides a detailed analysis of the impact of raising an ADHD child, as compared to a non-ADHD child, on maternal well-being. This is the first book of its kind to address the subject of mothering an ADHD child using two nationally representative and cross-cultural samples of Canadian and American mothers and children. A unique picture of how Canadian and American mothers are influenced by the ADHD status of their child, as well as their child's behavior and use of medication is revealed. This research is also concerned with the role of social support in mediating the effects of ADHD on maternal well-being. While numerous studies have examined the influence of social support in families of children experiencing an illness or handicap, this is the first to systematically explore the utilization of social support among mothers of ADHD children. According to Neff, the use of small, homogenous and clinically referred samples has contributed to negative characterizations of mothers of ADHD children. This is a timely piece of work as ADHD is now the most frequently diagnosed and treated disorder among school age children across Canada and the United States. ADHD and Maternal Resiliency provides a critical new perspective on mothering an ADHD child that will be of interest to sociologists, psychologists, clinicians, and educators, as well as mothers and families of ADHD children. Recommendations are advanced to increase research efforts toward gaining a greater understanding of the strengths and resources which enable mothers to successfully cope with the associated difficulties of mothering an ADHD child.
Neutron radiography has in recent years emerged as a useful and complementary technology for radiation diagnosis. It is now routinely used in industrial quality assurance and in support of selected research and developmental activities. Conferences are held on the subject, pertinent handbooks exist, and technical papers appear regularly reporting on new developments. While neutron radiography has indeed passed through the transition from a scientific curiosity to technological relevance, it is a sign of its continuing dynamic evolution that little material has appeared which provides an integrated mathematical and physical analysis of the subject possessing both an instructional as well as reference function. It is our hope that this monograph will fill this need. The distinctiveness of neutron radiography rests on the unique interactions between neutrons and nuclei. This leads to some special relationships between the material and geometrical properties of an object and the neutron radiographic image. The evolution of a technical discipline demands that specific conceptual constructs be developed and their mathematical representations examined and compared with controlled experiments. Experience has convinced us that a particular and substantial body of knowledge has accumulated endowing neutron radiography with the essential foundations of a unique mathematical and physical science. Our scientific and professional involvement in neutron radiography began some 15 years ago when the senior author (A.A.H.) found himself with convenient access to the McMaster University Nuclear Reactor and research support from the Government of Canada.