This is the story of the communities on Senja, from the past to the present. What did they look like in the old days? How have these communities changed and developed? How are they tackling the modern situation? Short texts and many photographs tell something of the history and variety on Senja – the communities, the scenery, the people. Ronny Trælvik is from the island Senja in Troms (Norway) and has written several books, including local history, humour, poetry, crime and biography.
Den isende kalde vinteren har lagt sin hånd over oss, folk haster inn i varmen. Men noen når aldri frem. John Nor opplever sin mest uhyggelige sak noen sinne da en mann blir meldt savnet. Lite vet de hva som lurer ute i vintermørket. Og selv John kommer til å kjenne frykten på kroppen.
The complex issues involved in the management of saline and sodic turfgrass soils are enough to perplex even the most experienced site manager — there is no "silver bullet" amendment, treatment, or grass for salinity management. Best Management Practices for Saline and Sodic Turfgrass Soils: Assessment and Reclamation presents comprehensive scientific principles and detailed, practical management and assessment recommendations for turfgrass and landscape sites. The authors use the Best Management Practices (BMPs) concept, considered the gold-standard management approach for any individual environmental issue, since it is a whole ecosystem (holistic), science-based salinity management approach that allows all possible management options to be considered and implemented on a site-specific basis. They identify BMP strategies, including irrigation system design; irrigation scheduling and salinity leaching; chemical, physical, and biological amendments; cultivation; topdressing; soil modification; sand-capping; surface and subsurface drainage options; nutritional practices; additional cultural practices; and ongoing monitoring. The book presents emerging challenges, technology, and concepts that address integration of salinity management into comprehensive site environmental or sustainable management systems, use of halophytic turfgrasses for non-traditional purposes, integration of geospatial and geostatistical concepts and technology, and integration of new sensor technology into daily management paradigms. Outlining a holistic BMP approach, the book incorporates scientific principles and practical management recommendations and details specific salinity challenges and the logic behind each BMP strategy for salinity management, with an emphasis on actual field problems. The book is formatted for flexible use, with stand-alone chapters that include outlines for quick review of a topic for those requiring only a basic understanding as well as in-depth discussions of the science and practical aspects for those seeking a more rigorous treatment. It supplies a single source for all the information required to identify and manage diverse types of salinity stresses.
Die vorliegende Arbeit behandelt verschiedene Aspekte der raum-zeitlichen Musterbildung in biologischen oder biologisch motivierten Reaktions-Diffusions-Systemen. Die hierbei auftretenden Muster werden entweder durch die, dem System auferlegten, Randbedingungen oder durch diffusive Kopplung nichtlinearer biochemischer Reaktionen hervorgerufen. Im ersten Teil der Arbeit werden Systeme in singular gestorten zwei- oder drei-dimensionalen Gebieten untersucht. Das sind Gebiete mit kleinen Lochern im Innern oder auf dem Rand des Definitionsgebietes. Mit Hilfe asymptotischer Methoden wird gezeigt, dass sich die Locher wie Punktsingularitaten verhalten, die durch entsprechende Greensche oder Neumann Funktionen beschrieben werden konnen. Es werden asymptotische Losungen fur durch Signalmolekule hervorgerufene intrazellulare Konzentrationsgradienten sowie fur die mittlere Verweilzeit diffundierender Molekule in der Gegenwart mehrerer, kleiner absorbierender Kompartimente (Locher) fur verschiedene Gebiete konstruiert. Im zweiten Teil der Arbeit wird am Beispiel der Entstehung einwarts rotierender Spiralwellen (Antispiralen) in der Glykolyse untersucht, wie sich bestimmte molekulare Reaktionsmechanismen auf die im System entstehenden raum-zeitlichen Muster auswirken. Zu diesem Zweck werden die Parameter einer zugeordneten komplexen Ginzburg-Landau Gleichung fur verschiedene Mechanismen der Produktaktivierung der Phosphofruktokinase (PFK) explizit berechnet und die entsprechenden Phasendiagramme miteinander verglichen. Die Analyse zeigt, dass das Auftreten von Antispiralen sowohl vom PFK-Aktivierungsmechanismus als auch von der Anzahl der PFK-Untereinheiten abhangt.
Thank you for visiting our website. Would you like to provide feedback on how we could improve your experience?
This site does not use any third party cookies with one exception — it uses cookies from Google to deliver its services and to analyze traffic.Learn More.