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In insect species characterized by inbreeding, limited dispersal, and a metapopulation structure, high genetic differentiation and reduced genetic diversity within local populations are expected. Using the model system Lysiphlebus hirticornis Mackauer, a specialist parasitoid of the tansy aphid, Metopeurum fuscoviride Stroyan (Hemiptera: Aphididae), we examined within-site temporal population dyna
Popular Abstract in Swedish Membranproteiner är tämligen svåra att digerera med enzym som trypsin. Mindre specifika enzym såsom elastase och pepsin har dock visat sig mer effektiva. Databassökningar med dessa icke-tryptiska peptider är mindre verkningsfulla pga avsaknaden av laddning vid peptidens N-terminal och C-terminal samt brist på sekvensspecificitet. Vi beskriver en metod med specifik N-teMembrane proteins are fairly refractory to digestion especially by trypsin. Less specific proteases like elastase and pepsin are much more effective. However database searching using non-tryptic peptides is much less effective due to the lack of charge localisation at the N- and C-termini and the absence of sequence specificity. We describe a method for N-terminal specific labelling of peptides fr
This thesis describes the affinity and enantiomeric selectivity of the cellobiohydrolase Cel7A (isolated from Hypocrea jercorina). The chiral recognition of the enzyme has been studied with respect to amino alcohols and new ligands have been designed, based on the structure of the common ?-blocker propranolol. Capillary electrophoresis have been used to determine the dissociation constants of the
This report covers the project period from 1.4.2003 to 31.08.2005. Project organisation, administration including the accounts, and the work carried out are reported. Besides, suggestions for copyright are put forward together with plans for dissemination activities and need for further research. The NAME was developed by the project group, consisting of all partners who have all contributed in an
The transport sector is facing serious challenges in meeting long-term sustainability criteria. Radical changes in the design of vehicles to attain competitive vehicles with substantially better environmental performance will probably constitute an important part in a future sustainable transport sector. The aim of the study described in this thesis is to assess the long-term options currently und
Popular Abstract in Swedish Som titeln antyder behandlar avhandlingen titrerande polyelektrolyter, d.v.s. stora molekyler med många syra-basgrupper. Sådana molekyler kan vi finna lite överallt, ja till och med i våra kroppar, som innehåller en mängd olika polyelektrolyter. Deras egenskaper kan variera starkt beroende på omständigheterna och har många biologiska och industriella tillämpningar. Att Different models and statistical mechanical approximations for titrating polyelectrolytes are studied and the results compared with Monte Carlo simulations and experimental data. Three types of models have been used in the simulations: i) rigid structures and freely jointed chains with ii) rigid bonds and iii) flexible, harmonic bonds. Sampling is facilitated for the latter two by the use of pivot
Popular Abstract in Swedish En central fråga av både teoretisk och praktisk betydelse är varför vissa företag är mer framgångsrika - vilket ofta uttrycks som att de har större konkurrensfördelar - än andra. Speciellt uppkommer frågan då vissa fabriker inom samma företag år efter år uppvisar ett bättre ekonomiskt resultat än andra. Fokus i denna avhandling är att förstå varför så sker inom ett utva
According to the traditional view, the relation between morphology and syntax is the following: while morphology builds up word forms—typically by combining roots with other roots and with affixes, but also by applying other operations to them, syntax takes fully inflected words as input and combines them into phrases and sentences. The division of labour between morphology and syntax is thus perf
Popular Abstract in Swedish Bildning, bearbetning och upplagring av cathepsin G, proteinas 3 och azurocidin - närbesläktade bakteriedödande proteiner i vita blodkroppar Människans kropp utsätts dagligen för fientliga attacker av olika sorters mikroorganismer, tillhörande bakterie-, virus- eller svampsläktet. Så länge vi är friska och vårt immunförsvar fungerar, kan vi som tur är framgångsrikt fö
This report has a two-fold objective. -To identify the changing risk management needs in the private and public sectors and the corresponding needs for development of risk analysis methods and related practices. -To list examples of projects where Nordic co-operation between industry, authorities and universities can be effective for increasing the contribution of risk management to industrial gro
Popular Abstract in Swedish Ärftlig blindhet orsakas oftast av sjukdomar där näthinnans fotoreceptorer, som ombesörjer omvandlingen av ljus till elektriska impulser, degenererar. Det anses att denna celldödsprocess styrs av ett antal olika mekanismer och projektets mål är att försöka identifiera och karaktärisera dessa mekanismer. Retinitis Pigmentosa (RP) är en ärftlig sjukdom där en genetisk def
Hylander treated 144 species of Hieracium sect. Hieracium found in Scandinavian parks, 132 of which were described for the first time. However, he did not supply any determination key, only a few species were illustrated and hints about the differences between species were few. In addition, the species concept of Hylander was obviously much narrower than what has been agreed upon by those working
Kinetics of interstitial oxygen loss and oxygen-related thermal double donor (TDD) generation upon heat treatments of Ge:O crystals at 350 degrees C have been studied. The TDD concentration (N-TDD) was derived from Hall effect measurements in the temperature range 77-400 K. The bistability of the first TDD species was taken into account. The interstitial oxygen concentration ([O-i]) in the crystal
