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Ändtarmscancer är en av de vanligast förekommande cancersjukdomarna. Tillsammans med tjocktarmscancer är det den tredje vanligaste cancersjukdomen i världen. Den behandlas vanligen med kirurgi, under vilken en stor del av ändtarmen och dess omgivande fettvävnad tas bort. För att minska risken för återfall kan operationen kompletteras med strålbehandling, där patienterna oftast strålbehandlas innanBackground and purpose: During radiotherapy, rectal cancer patients show inter-fractional internal motion that effects the delivered dose distribution. The purpose of this work is to study I) the inter-fractional bladder volume change, II) the effect of bladder volume change on bowel dose distribution, III) the effect of bladder optimization on the relationship between bladder volume and bowel dos

Numerous Neoproterozoic mafic dykes, referred to as the Dashigou swarm, are identified in the central and southeastern parts of the North China craton (NCC). They are 305-010 degrees trending dykes, with widths of similar to 10-100 m and exposed lengths of several to >10 km. Precise U-Pb isotope dilution thermal ionization mass spectrometry (ID-TIMS) measurements on baddeleyite grains separated fr

Colombia, as many Latin-American countries have designed a series of welfare programs in order to relief poverty, due to the crisis experimented during the 90s. Hence, the present research estimate the impact on earnings of one of the welfare program implemented in Colombia “Empleo en Acción” and see the possible forgone income from participate in the program. Thereby, based on Diff-Diff method th

Barsebäcks kärnkraftverk driftsattes 1975 och den första reaktorn togs ur drift 1999 och den andra 2005. Nedmontering och rivning av kärnkraftverket har inletts och processen beräknas vara klar på 2030-talet. Syftet med detta examensarbete är att kartlägga eventuell radioaktiv kontamination i området runt Barsebäcksverket. Mitt mål är att ta fram en metod för att särskilja bakgrundsstrålning från Background and aim: The Barsebäck nuclear power plant (NPP) units ceased operations in 1999 and 2005. Now the NPP is in the phase of decommissioning, which is a complicated process that will take many years to complete. Radiological characterization of the surrounding area is a part of the decommissioning process. The aim of this thesis was to identify and quantify residual anthropogenic radioacti

Studies on fibre intake and incident colorectal cancer (CRC) indicate inverse associations. Differences by tumour stage have not been examined. We examined associations between fibre intake and its sources, and incidental CRC. Separate analyses were carried out on the basis of sex, tumour location and the Tumour, Node, Metastasis (TNM) classification. The Malmö Diet and Cancer Study is a populatio

Background:Observational studies have mostly found no association between self-reported whole-grain (WG) intake and prostate cancer (PCa). Plasma alkylresorcinol metabolites have been suggested as biomarkers for WG intake in free-living populations. Methods:We investigated the major dietary and lifestyle determinants of plasma alkylresorcinol metabolites in a nested case-control study (1,016 cases

There is a long history of avian studies investigating the impacts of urbanization. While differences in several life-history traits have been documented, either between urban and rural populations or across generalized urbanization gradients, a detailed understanding of which specific environmental variables cause these phenotypic differences is still lacking. Here, we quantified several local en

BACKGROUND: Platelets are a critical element in coagulation and inflammation, and activated platelets are linked to cancer risk through diverse mechanisms. However, a causal relationship between platelets and risk of lung cancer remains unclear. METHODS: We performed single and combined multiple instrumental variable Mendelian randomization analysis by an inverse-weighted method, in addition to a

Background Breast cancer is the most frequently diagnosed cancer in women. Survival is generally considered favourable, yet some patients remain at risk of early death. We aimed to assess whether comprehensive whole-genome sequencing (WGS) linked to mortality data could add prognostic value to existing clinical measures and identify patients who might respond to targeted therapeutics. Methods In t

Nanoplastics are emerging environmental contaminants that increasingly threaten soil ecosystems, yet their effects on microbial behavior remain poorly understood. This is mainly due to the lack of experimental tools capable of directly observing microbial dynamics in situ under realistic soil-like conditions. Here, we present a proof-of-concept system that enables real-time, high-throughput monito

The spectrum of frontotemporal dementia/amyotrophic lateral sclerosis (FTD/ALS) and Huntington disease (HD) are fatal neurodegenerative disorders with no major disease-modifying therapies. Recent work has shown that the hallmark pathological proteins TAR DNA binding protein of 43 kDa (TDP-43) in FTD/ALS and mutant huntingtin (mHTT) in HD may be interlinked. Furthermore, these disorders share early

Smart microscopy represents a paradigm shift in biological imaging, moving from passive observation tools to active collaborators in scientific inquiry. Enabled by advances in automation, computational power, and artificial intelligence, these systems are now capable of adaptive decision-making and real-time experimental control. Here, we introduce a theoretical framework that reconceptualises sma

The Big Butterfly Count reported its worst results in 14 years of monitoring UK species.

BACKGROUND: HYPO-RT-PC is a phase 3 trial comparing ultra-hypofractionated and conventionally fractionated radiotherapy in intermediate-to-high-risk localised prostate cancer. This 10-year update reports long-term efficacy and toxicity outcomes.METHODS: In this open-label, randomised, phase 3, non-inferiority trial done in ten centres in Sweden and two in Denmark, we recruited men aged 75 years or

Low back pain is common and negatively impacts quality of life and workplace productivity. However, few studies have focused on small- and medium-sized enterprises (SMEs) where risk factors are prevalent. This cross-sectional study examined the association and structural relationships between physical and social factors in low back pain among Japanese SME workers. We analyzed survey data collected

Long-distance migrants face numerous challenges during their migration, with the spring migration timing being particularly important, as early arrival at the breeding grounds often enhances breeding success. Both innate and environmental factors influence migration timing in birds, and the earlier arrival of males than females is common among songbirds breeding in temperate zones. The great reed

Tyrosine kinase inhibitors (TKIs) are highly effective for the treatment of chronic myeloid leukemia (CML), but very few patients are cured. The major drawbacks regarding TKIs are their low efficacy in eradicating the leukemic stem cells responsible for disease maintenance and relapse upon drug cessation. Herein, we performed ribonucleic acid sequencing of flow-sorted primitive (CD34+CD38low) and

Barnobesitas är sedan flera år ett ökat hälsoproblem bland barn. Obesitas vid 4 års ålder ger en kraftigt ökad risk för obesitas senare i livet. Att förebygga uppkomst och utveckling av obesitas är en långsiktig investering för framtiden. Idag finns ingen evidensbaserad metod för vägledning inom barnhälsovården för att främja hälsosamma levnadsvanor och förebygga obesitas hos förskolebarn. Det övePrevention of childhood obesity with its effects on children’s mental and physical health and well-being is an international public health priority and is suggested to be effective when started early. As Child Health Services lack an evidence-based model, there is the need for development of a low-intensive health promotion model that is feasible and cost-effective in preventing obesity in prescho