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In this paper we show the density-dependent harvest rates of optimal Bayesian foragers exploiting prey occurring with clumped spatial distribution. Rodriguez-Girones and Vasquez (1997) recently treated the issue, but they used a patch-leaving rule (current value assessment rule) that is not optimal for the case described here. An optimal Bayesian forager exploiting prey whose distribution follows

Kai Söderhjelm (b. 1918 in Helsinki, d. 1996 in Gothenburg) belonged to a Finland-Swedish cultural family, and was for many years an important and valuable figure in the intellectual life of Sweden. Söderhjelm’s authorship follows the same clear thematic lines from his first book, Rid mot nordväst (1948; Ride to the northwest), to his last, Okänt land (1993; Unknown land). These themes are peace,

Den här uppsatsen diskuterar äktenskapet och dess okritiserade roll i den svenska familjerätten. Det huvudsakliga syftet med uppsatsen är att granska äktenskapet som en statligt reglerad samlevnadsform. Detta görs genom att granska äktenskapets historia, gällande rätt, äktenskapets funktioner och lagstiftarens överväganden vid reglering av intima relationer. Uppsatsen har också ett kritiskt anslagThis paper discusses marriage and its uncriticized role in Swedish family law. The main purpose of the essay is to examine marriage as a state regulated form of intimate relation between individuals. The essay examines the history of marriage, the applicable law, the function of marriage and the legislator’s considerations when it comes to legislation concerning intimate relations. This paper als

I enlighet med bestämmelserna i lagen om genetisk integritet m.m. är surrogatmoderskap inte tillåtet inom svensk hälso- och sjukvård. Vissa ofrivilligt barnlösa som saknar möjlighet till behandling med assisterad befruktning i Sverige, söker sig därför utomlands för att genomgå surrogatarrangemang. Svårigheter kan uppstå när de tilltänkta föräldrarna vill ta hem barnet till Sverige. Eftersom surroAccordning to the provisions of the Genetic Integrity Act, surrogacy is not permitted in the Swedish health care system. Thus some individuals who suffer from involuntary childlessness cannot be offered treatment of assisted reproduction in Sweden. Some of them travel abroad to undergo surrogate arrangements. When the prospective parents wish to bring their child home difficulties arise. Due to th

Vårdnadsrelaterade tvister har ökat markant de senaste åren. För varje tvist finns det minst ett barn som påverkas, men barn saknar i svensk rätt både talerätt och processbehörighet i dessa mål. Det finns emellertid vissa rättigheter som ska tillförsäkra att barnets intressen tillgodoses i processen; barnets bästa och barnets rätt att komma till tals. Barn har rätt att uttrycka sina åsikter och atFamily law disputes concerning child custody, residence of the child and the child’s right of access with a parent have increased significantly over the last years. This means that more children get involved in these kinds of disputes every year. In Sweden, children have no right to litigate and no procedural capacity in these proceedings. Instead there are other rights that are supposed to ensure

Huvudsyftet med denna pilotstudie var att undersöka anknytningsrepresentationer hos ensamstående kvinnor i Sverige som planerar eller överväger att skaffa barn, som väntar barn eller som har fått barn genom assisterad befruktning (donatorinsemination). Upplevelser av social acceptans relaterat till deras val att frivilligt bli ensamstående mödrar undersöktes också. Som metod användes Adult AttachmThe main aim of this pilot study was to explore inner representations of attachment in single women in Sweden that were planning to have children, that were expecting children or that have had children on their own through assisted reproduction (donor insemination). Experiences of social acceptance regarding their choice to parent alone were also examined. The methods used were The Adult Attachmen

Detta arbete redovisar hur den svenska regleringen av barnaga varit utformad historiskt samt hur diskussionerna kring ämnet har gått. Målet med uppsatsen är att utreda varför inställningen till barnaga ändrades under 1900-talet, från att barn tidigare århundrade främst sågs som en egendom till föräldrarna till att bli klassade som individer med egna rättigheter. Från att föräldrar såg det som en sThis essay will present how the Swedish control of corporal punishment has been formed historically and how the discussions regarding the subject has evolved. The purpose of the essay is to investigate why the attitude against corporal punishment changed during the 19th century, from centuries where children where mainly considered as property of their parents to be seen as individuals with their

I denna uppsats undersöks huruvida hedersrelaterat våld och förtryck kan utgöra en grund för ensam vårdnad enligt gällande svensk rätt. Syftet är att utreda om domstolar tar hänsyn till hedersproblematik i sina bedömningar i tvister som rör vårdnad, boende och umgänge. För att uppnå detta syfte behandlas frågor som till exempel vad hedersrelaterat våld och förtryck är, hur den svenska lagstiftningThe object of this thesis is to examine whether honour-based violence and oppression may constitute a basis for sole custody according to current Swedish law. The thesis also examines whether Swedish courts take honour-related problems in deliberation in their assessments during cases involving custody, housing and visitation. To achieve this, the thesis defines what honour-related violence and op

Self-control can be explained as the power to resist what is usually hard to resist, which is essentially what individuals do when they deny themselves to satisfy impulses. This ability is suggested to be a necessity for more cognitively advanced behaviours in animals. A recent study compared 36 species across several taxa in their ability to elicit self-control and found that primates performed b

I en rättegångsprocess är olika uppgifter fördelade mellan de olika aktörerna. Huvudregeln enligt svensk rätt är att parterna har huvudansvaret för den materiella delen av processen, medan domstolen ansvarar för den formella delen. Det har sin grund i de processrättsliga principer som reglerar ansvaret mellan domstolen och parterna i rättegångsprocessen: den kontradiktoriska principen, förhandlingIn a proceeding in court, different tasks are divided between the different actors. The main principle in Swedish law is that the litigants have the responsibility for the substantive part of the proceeding, while the court is responsible for the formal part. This is based on the procedural code principles that regulate the responsibility between the court and the litigants in the court proceeding

I jakten på förnyelsebara energikällor är solceller en av de mest lovande teknikerna. Idag dominerar kisel-solcellen marknaden men även den har begränsningar och därför är det motiverat att utveckla andra sorters solceller. En solcellsteknik på utvecklingsstadiet som försöker efterlikna fotosyntesen är Grätzelsolcellen. Precis som i fotosyntesen är det en färgämnesmolekyl i solcellen som ska absorIn the hunt for fossile-free energy-harvesting techniques, solar cells constitute one of the most promising techniques. Today, silicon-based solar cells are the dominant technique on the market but even the Silicon solar cell has limitations which means that there is a motivation for developing new solutions. One of those techniques is the dye-sensitized solar cell. Just as in photosynthesis, the

A new pharmaceutical product suitable to act as a negative contrast agent for Computerized Scan (CT-scan) of the abdomen is under development. At the moment the product has the form of a powder, which when dispersed in water and whipped, gives a stable foam. The foam is ingested by individuals who are about to undergo a CT-scan, as a prior preparation step. The powder form has disadvantages such a

Trap roads are a part of the Swedish railway facility and resembles the safest front- and side protection at speed above 160 km/h. When designing Trap roads, some regulations needs to be followed. As these, in some cases, may be contradictory towards each other, the planners become somewhat insecure. The purpose of the master thesis has thenceforth been to clarify for the planners, as well as to w

Vårt skelett är uppbyggt av olika typer av benvävnad, vilka alla har komplex struktur och olika egenskaper. Benvävnadens struktur motverkar på olika sätt att en spricka växer till en fraktur. Exakt hur detta går till är ännu inte förstått men man vet att strukturerna, från på nanometernivå till i full skala, på olika sätt bidrar till att stå emot benbrott. I det här projektet utvecklas en ny metodThe microstructure in cortical bone greatly affect the toughness of the bone and the crack propagation during fracture. The two main structural features, Haversian canals and osteons, have been previously studied in order to increase the knowledge of the biomechanics of bone. In studies where X-ray microtomography has been the imaging method of choice, the microstructure has been analysed based on

This research aims to improve the understanding of the relationships between formal and informal strategic planning in reference to performance among SMEs. A qualitative case study was chosen as the approach for this thesis. The data was collected by conducting ten interviews with ten different manufacturing SMEs in Baden-Württemberg, Germany. A purposive sampling was conducted to ensure relevance

Research suggests that polyphenols, such as anthocyanins, that are found in considerable amounts in many types of berries, contributes with a positive effect on human cognition. However, clinical trials are warranted to support these findings. Preparation for such a trial includes developing a berry-rich study product and a corresponding reference beverage. Phenolic compounds are highly unstable a

The experience of reading the news online has changed significantly for consumers in recent years. So-called native advertising has seen an increase which has resulted that the line between marketing and journalism has become blurred for a lot of people. Various studies show that consumers have difficulties perceiving what is native advertising and what is journalism when they’re asked to distingu