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An exploratory study of Middle Stone Age and Later Stone Age site locations in Kenya’s Central Rift Valley using landscape analysis : a GIS approach

The Kenyan central rift has witnessed dramatic climatic changes over relatively short periods of time in response to global climatic changes, with the water levels of the lakes within the rift rising and falling with these changing conditions. There is considerable evidence showing extreme wet and dry phases throughout their existence. These wet and dry phases also influenced the vegetation cover,

Values shaping consumer interactions on social commerce sites within game retail

The game industry has continued to grow for decades and the social interaction trend has been growing for years in gaming. In retail, the e-commerce companies have been extending the social interaction trend to the e-commerce platforms and turning the e-commerce into social commerce. Even though the social commerce and gaming have aroused the interest of the researchers earlier, social commerce in

Regulation of HPV16 splice sites located in the E6/E7 oncogene coding region

Kan cellers proteiner bota HPV- sjukdomar? Livmoderhalscancer är en av de vanligaste cancersjukdomarna som drabbar kvinnor världen över. Varje år, diagnostiseras ungefär 500 000 kvinnor och 270 000 dör i sjukdomen, varav de flesta dödsfallen sker i utvecklingsländer. Livmoderhalscancer orsakas av det vanligt förekommande viruset humant papillomvirus (HPV) och för att hitta bättre behandling mot sHuman papillomaviruses (HPVs) are small DNA viruses that have evolved over millions of years and are well-adapted to humans. Persistent infections with HPVs, can result in cancer development. There are over 200 different HPV types that can be divided into high- and low risk types based on their ability to cause cancer. HPV16 is the most common high- risk type that accounts for more than 50 % of al

OSL dating of the Mesolithic site Nilsvikdalen 7, Bjorøy, Norway.

Luminiscensdatering är en väletablerad dateringsmetod inom geologisk och arkeologisk forskning. Dock är användandet av luminiscensdatering, mer specifikt optiskt stimulerad luminiscens (OSL), fortfarande underrepresenterat inom norsk arkeologi. Denna studie ämnar utreda lämpligheten av denna dateringsmetod som ett användbart alternativ för utgrävningar av Stenålderslokaler på den norska kusten. De

Kan blåmusselskal avslöja havets hälsa? Effekter av Marco Polos oljeutsläpp på blåmusslors tillväxt och hållfasthet

När passagerarfartyget Marco Polo gick på grund utanför Skånes kust hösten 2023 läckte olja ut i havet. Men vad händer med livet under ytan efter ett sådant oljeutsläpp? I denna studie har blåmusslor använts som naturens egna vittnen och deras skal bär på spår av hur djur anpassar sig till en förorenad värld. När ett fartyg går på grund och släpper ut olja i havet är det inte bara stränderna som

Cultural Heritage, Our Shared Legacy: A Study of Value Co-Creation in Archaeological Site Management

Cultural tourism and cultural heritage management, while distinct disciplines with differing foci, are also inherently intertwined. However, conflicts between the two often arise due to the diverse number of stakeholders and interests involved in either the travel industry or the conservation and protection of cultural heritage. Despite this, cultural tourism can greatly benefit the conservation o

Majorana sweet spots in three-site Kitaev chains

Minimal Kitaev chains, composed of two quantum dots connected via a superconductor, have emerged as an attractive platform to realize Majorana bound states (MBSs). These excitations exist when the ground state is degenerate. The additional requirement of isolating the MBS wave functions further restricts the parameter space to discrete sweet spots. While scaling up to Kitaev chains with more than

Allosteric rescue of catalytically impaired ATP phosphoribosyltransferase variants links protein dynamics to active-site electrostatic preorganisation

ATP phosphoribosyltransferase catalyses the first step of histidine biosynthesis and is controlled via a complex allosteric mechanism where the regulatory protein HisZ enhances catalysis by the catalytic protein HisGS while mediating allosteric inhibition by histidine. Activation by HisZ was proposed to position HisGS Arg56 to stabilise departure of the pyrophosphate leaving group. Here we report

The evolution of multiple active site configurations in a designed enzyme

Developments in computational chemistry, bioinformatics, and laboratory evolution have facilitated the de novo design and catalytic optimization of enzymes. Besides creating useful catalysts, the generation and iterative improvement of designed enzymes can provide valuable insight into the interplay between the many phenomena that have been suggested to contribute to catalysis. In this work, we fo