| 1. |
|
|
| 2. |
|
|
| 3. |
- Arnborg, Stefan, et al.
(författare)
-
Data Mining in Schizophrenia Research - preliminary analysis
- 2002
-
Konferensbidrag (refereegranskat)abstract
- We describe methods used and some results in a study of schizophrenia in a population of affected and unaffected participants, called patients and controls. The subjects are characterized by diagnosis, genotype, brain anatomy (MRI), laboratory tests on blood samples, and basic demographic data. The long term goal is to identify the causal chains of processes leading to disease. We describe a number of preliminary findings, which confirm earlier results on deviations of brain tissue volumes in schizophrenia patients, and also indicate new effects that are presently under further investigation. More importantly, we discuss a number of issues in selection of methods from the very large set of tools in data mining and statistics.
|
|
| 4. |
|
|
| 5. |
- Jönsson, Anna Maria, et al.
(författare)
-
Climate change and the effect of temperature backlashes causing frost damage in Picea abies
- 2004
-
Ingår i: Global and Planetary Change. - : Elsevier BV. - 1872-6364 .- 0921-8181. ; 44:1-4, s. 195-207
-
Tidskriftsartikel (refereegranskat)abstract
- In boreal and nemoboreal forests, tree frost hardiness is modified in reaction to cues from day length and temperature. The dehardening processes in Norway spruce, Picea abies, could be estimated to start when the daily mean temperature is above 5 degreesC for 5 days. Bud burst will occur approximately after 120-170 degree-days above 5 degreesC. dependent on genetic differences among provenances. A reduced cold hardiness level during autumn and spring and an advanced onset of bud burst are expected impacts of projected future global wart-ning. The aim of this study was to test if this will increase the risk for frost damage caused by temperature backlashes. This was tested for Sweden by comparing output from the Hadley Centre regional climate model, HadRM3H, for the period 1961-1990 with future IPCC scenario SRES A2 and B2 for 2070-2099. Different indices for calculating the susceptibility to frost damage were used to assess changes in frost damage risk. The indices were based on: (1) the start of dehardening; (2) the severity of the temperature backlash: (3) the timing of bud burst: and (4) the cold hardiness level. The start of dehardening and bud burst were calculated to occur earlier all over the country. which is in line with the overall warming in both climate change scenarios. The frequency of temperature backlashes that may cause frost damage was calculated to increase in the southern part, an effect that became gradually less pronounced towards the north. The different timing of the onset of dehardening mainly caused this systematic latitudinal pattern. In the south, it occurs early in the year when the seasonal temperature progression is slow and large temperature variations occur. In the north, dehardening will occur closer to the spring equinox when the temperature progression is faster. (C) 2004 Elsevier B.V. All rights reserved.
|
|
| 6. |
- Jönsson, Anna Maria, et al.
(författare)
-
Frost hardiness in bark and needles of Norway spruce in southern Sweden
- 2001
-
Ingår i: Trees. - : Springer Science and Business Media LLC. - 1432-2285 .- 0931-1890. ; 15:3, s. 171-176
-
Tidskriftsartikel (refereegranskat)abstract
- Bark necrosis and resin flows in Norway spruce have increased in southern Sweden over the last few decades. Frost damage late in spring has been suggested as a possible cause, but other factors besides the climate may have contributed to the damage. The nutrient status influences the hardening processes and plants with poor nutritional conditions have an increased sensitivity to frost. In this study the sensitivity to frost of bark and the hardiness status of needles of Norway spruce were compared with the nutrient status at two sites with different soil fertility. The trees were 30-40 years old. The hardiness status of the bark and needles was negatively affected by low concentrations of P and Mg.
|
|
| 7. |
- Jönsson, Anna Maria, et al.
(författare)
-
Sensitivity to frost and drought.
- 2002
-
Ingår i: Developing principles and models for sustainable forestry in Sweden.. - 1402009992 ; , s. 213-216
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)
|
|
| 8. |
- Jönsson, Bodil, et al.
(författare)
-
Pacemaking - ett instrument för reflektion om rytm,tid och stress
- 2004
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- När vi har ställt samman det här materialet, har vi tänkt på tre olika grupper av mottagare: De 36 personer som deltagit i Pacemaking Jönköping Det är ni som är de närmast berörda, och det mesta av materialet har ni själva skrivit. Både ni och era närm
|
|
| 9. |
- Jönsson, Bodil, et al.
(författare)
-
Pacemaking Jönköping
- 2004
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- "We know and can do much more than we thought we could!" Perhaps this is what is most clearly revealed by the participants in Pacemaking Jönköping. The process, final report and the project's continuation comprise living proof that people in Sweden in 2
|
|
| 10. |
|
|
