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Popular Abstract in Swedish Salt ackumulering på jordbruksmark är en historisk såväl som ett av de potentiellt största problem som mänskor har haft och har. Forskare har undersökt och försökt lösa detta problem under en lång tid. Över 20 reviewer har publicerats om ämnet under de senaste fem åren. I denna avhandling redogörs summariskt för utbredningen av salt stress i dagens jordbruk, samt de toSalt stress is one of the historically as well as potentially largest agriculture problem humans have faced. Researchers have investigated and tried to solve this problem for a long time. Over 20 reviews have been written on this topic the last five years. In this thesis the extent of salt stress in today's agriculture, the toxic and damaging effects on plants and bacteria exposed to salt stress,

We present a new study of deep star counts in the Local Group dwarf spheroidal (dSph) in Ursa Minor. Both the luminosity function (LF) and the color-magnitude diagram (CMD) of the unevolved stars are compared with the LF and CMD of the old, metal-poor globular cluster M92. The main sequence locations and turn-offs are identical within the errors. Since we. know from the brighter evolved stars that

Naturens inverkan på arbetet för de som arbetar utomhus eller i nära anknytning till naturens förutsättningasr. Både de negativa och besvärliga erfarenheterna samt positiva erfarenheter som stimulerar arbetslusten och trivseln. Naturens betydelse för ett teoretiskt arbete och ett praktiskt arbete.

The existing research has produced a useful palette of ideas that help us make sense of the phenomenon of organizational control. But there is a trend that hampers the interpretative possibilities: a heavy bias towards vertical forms of control. It is frequently assumed that the control that operates in organizations has its origin in the actions of managers. This assumption is especially problema

In this chapter we explore the meaning of 'care' and 'treatment' in a specific context -- contemporary prisons in Sweden -- as they are displayed and used in interview talk with inmates and staff members. Drawing on unstructured interviews from two sociological projects we develop an ethnomethodological analysis to uncover how 'care' and 'treatment' are used as identificatory as well as moral reso

A model for evolution of cracks as a result of strain-assisted corrosion is presented. The considered cracks possess a realistic geometry, where the tip region is an integral part of the crack surface instead of being a singular point. This geometry is either implicitly defined or is a consequence of crack nucleation from surface irregularities. The evolution model poses a moving boundary value pr

Selling goods or providing services in public spaces is one of the most accessible occupations for many individuals living in poverty in today’s world. However, most street vendors conduct their businesses by disobeying laws that prohibit this kind of work. Drawing on field data on street vendors in the city of Bogotá, Colombia, this article ethnographically explores vendors’ ideas, perceptions, a

Control systems design has traditionally been treated separately from the design of its software and hardware implementation. The increasing use of embedded control in for example distributed, safety critical and mass-produced systems has caused an increasing need for the simultaneous consideration of the control system and its implementation platform during development To this end, there is a nee