A new technique, called the polymerization algorithm, is described for the hierarchical segmentation of polymerized volume data sets (PVDS) using the Lblock data structure. The Lblock data structure is defined as a 3dimensional isorectangular block of enhanced vertex information. Segmentation of the PVDS is attained by intersecting and merging Lblock coverings of the enhanced volumetric data. The data structure allows for easy compression, storage, segmentation, and reconstruction of volumetric data obtained from scanning a mammalian brain at submicron resolution, using threedimensional light microscopy (knifeedge scanning microscopy (KESM), confocal microscopy (CFM), and multiphoton microscopy (MPM)). A hybrid technique using the polymerization algorithm and an existing vectorbased tracing algorithm is developed. Both the polymerized and the hybrid algorithm have been tested and their analyzed results are presented.

A new technique, called the polymerization algorithm, is described for the hierarchical segmentation of polymerized volume data sets (PVDS) using the Lblock data structure. The Lblock data structure is defined as a 3dimensional isorectangular block of enhanced vertex information. Segmentation of the PVDS is attained by intersecting and merging Lblock coverings of the enhanced volumetric data. The data structure allows for easy compression, storage, segmentation, and reconstruction of volumetric data obtained from scanning a mammalian brain at submicron resolution, using threedimensional light microscopy (knifeedge scanning microscopy (KESM), confocal microscopy (CFM), and multiphoton microscopy (MPM)). A hybrid technique using the polymerization algorithm and an existing vectorbased tracing algorithm is developed. Both the polymerized and the hybrid algorithm have been tested and their analyzed results are presented.

The dual mechanism of cognitive control framework (DMC) describes cognitive control via two strategies: proactive and reactive. Individuals using a proactive strategy, focus on actively maintaining goal-relevant information in memory, whereas reactive individuals store goal-relevant information and retrieve it when cues are present. Reimer and colleagues (2015, 2017) added cue-probe location shifts to the typical AX-CPT, as well as, a virtual-reality environment version of the AX-CPT. Through this, they found that the effect of location shifts vary depending on whether a proactive or reactive mode of control is utilized. Thus, the aim of the present study was to test whether the effect of location shifts on cognitive control depends on type of control strategy used. Two versions of the AX-CPT were used: shift alone and shift with no-go trials. The shift alone AX-CPT examined the influence of location shifts in proactively-biased young adults. The shift with no-go trials AX-CPT examined the influence of location shifts with a manipulation that is known to induce a reactive control strategy (Gonthier et al., 2016). It was hypothesized that cue-probe location shifts would have a differential effect on mode of control. Results demonstrated that type of AX-CPT given, cue-probe location, and type of trial presented individually influenced participant performance. There was also an interaction between AX-CPT type and trial type that provides evidence for a successful manipulation of mode of control. The hypothesized interaction between all variables, however, was not found. Possible limitations of the present study, as well as, future direction were discussed.

Technological development has made working conditions more digital in today’s society, where the use of wireless aids has removed boundaries creating a more flexible working environment. Individuals now have the ability to decide for themselves about when, where and how ones work should be performed. The purpose of this study is to obtain an insight on how work without boundaries is experienced by individuals. Previous research links work with less boundaries to a more sustainable lifestyle where the individual has the ability to easier separate work from leisure time. This is however highly dependent on work characteristics which determines the possibility of flexible working conditions. This study has by the use of qualitative interviews aimed focus on real estate brokers, an occupation which has work characteristics that are considered to be less determined by boundaries in terms of working hours and income. This study highlights strategies on how real estate brokers can separate work life from private life, or choose to combine the two. Finally, the study has identified a set of characteristics which are important to the individual when it comes to managing work without boundaries. / Samhällets teknologiska utveckling har möjliggjort en ökad gränslöshet i arbetslivet och dagligen används portabla hjälpmedel som bidrar till arbetets flexibilitet. Den enskilda individen får i större utsträckning själv bestämma när, var och hur arbetet ska utföras. I denna studie undersöks hur individer kan uppleva och hantera gränslöshet med syftet att få en djupare förståelse för fenomenet gränslöst arbete. Enligt tidigare forskning är upplevelsen av gränslöst arbete kopplad till möjligheten för en fritid som inte inkluderar arbetet, detta för att möjliggöra återhämtning och för att bibehålla välmående i längden. Beroende på yrkets karaktär är detta dock inte alltid möjligt. Studien har genom kvalitativa intervjuer fokuserat på en grupp fastighetsmäklare vars yrke har en tydlig gränslöshet där allt från arbetstid till inkomst varierar. Studien synliggör även strategier som innefattar att individen antingen kan välja att kombinera arbetslivet med privatlivet eller att se dem som två separata sfärer utan koppling till varandra. Vidare har olika karaktärsdrag identifierats som tycks vara av stor vikt för både hanteringen och upplevelsen av det gränslösa arbetet.