Essays about: "60-talet"

Showing result 16 - 20 of 43 essays containing the word 60-talet.

  1. 16. Att inventera urbana träd : syfte, parametrar, metod och löpande arbete

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Anna Lund; [2016]
    Keywords : urban trädinventering; trädförvaltning; stadsträd; syfte; parameter; metod; löpande arbete; urban forestry;

    Abstract : Begreppet urban forestry myntades på 60-talet i USA och intresset för urbant trädförvaltande har på senare år spridits till Sverige och blivit mer och mer upp-märksammat. Träd i urbana miljöer är viktiga av många orsaker och kan värderas utifrån kulturhistoriska, sociala och naturvärdesperspektiv. READ MORE

  3. 17. Base cations in forest soils : A pilot project to evaluate different extraction methods

    University essay from

    Author : Jonas Olofsson; [2016]
    Keywords : Acidification; whole tree harvest; stem harvest; forestry; base cations; extractions; Aqua Regia; BaCl2; NH4OAc; EDTA; comparison; calcium; magnesium; potassium; sodium; Försurning; baskatjoner; extraktioner; Aqua Regia; BaCl2; NH4OAc; EDTA; helträdsuttag; kalcium; magnesium; kalium; natrium;

    Abstract : The acidification has been a known problem in Sweden for several decades. Sulphurous compounds, spread from the British Isles and the European continent led to a decrease in the pH-value of the rain that fell over Sweden. Since the acidification was discovered in the 1960s, active measures against the sulphurous deposition have been undertaken. READ MORE

  4. 18. IgG mediated suppression of immunological memory

    University essay from SLU/Dept. of Anatomy, Physiology and Biochemistry

    Author : Jennifer Petersson; [2015]
    Keywords : IgG; immunoglobulin G; immunological memory; suppression;

    Abstract : Apart from recognizing and neutralizing threats, antibodies also have the ability to regulate immune responses against their specific antigen. IgG administered together with erythrocytes is well known to induce >99% suppression. READ MORE

  5. 19. Flavour-changing neutral currents in top quark decays to Higgs bosons in a two-Higgs-doublet model

    University essay from Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Author : Leo Zethraeus; [2015]
    Keywords : 2HDM; Particle Physics; High Energy Physics; Higgs; two-Higgs-doublet model; FCNC; Physics and Astronomy;

    Abstract : In this thesis top quark decays to a charm quark and a (CP even) Higgs boson are investigated in a general two-Higgs-doublet model (2HDM) allowing flavour-changing neutral currents. The theory behind 2HDMs is introduced and the specific choice of 2HDM is put to test under theoretical constraints that require the potential in the Lagrangian density of the model to satisfy vacuum stability, tree-level unitarity and perturbativity. READ MORE

  6. 20. Formation of super-Earths via pebble accretion onto planetesimals

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Daniel Mikkola; [2015]
    Keywords : planet; formation; planet formation; exoplanets; pebble; accretion; pebble accretion; Physics and Astronomy;

    Abstract : Data from NASA's Kepler space telescope, which searches for exoplanets via the transit method, produced 1108 new planetary candidates in 2013 with a total of 91% being smaller than Neptune in size. These were mostly super-Earths, terrestial planets between Earth and Neptune in size, with orbits around 10 days. READ MORE