Sökresultat

Filtyp

Din sökning på "fccoin trustpilot Coinsnight.com FC 26 coins 30% OFF code: FC2026. Accessible customer support available when needed.u0C6" gav 48044 sökträffar

Species recognition through wing interference patterns (WIPs) in Achrysocharoides Girault (Hymenoptera, Eulophidae) including two new species

Wing interference patterns (WIPs) are shown to be an important tool for species recognition in the genus Achrysocharoides Girault (Hymenoptera: Eulophidae). This is demonstrated by combining information from two previously published papers, comprising two cases of cryptic species, and by new material including the description of two new species, A. maieri and A. serotinae from North America. The c

Suppression of NDA-type alternative mitochondrial NAD(P)H dehydrogenases in Arabidopsis thaliana modifies growth and metabolism, but not high light stimulation of mitochondrial electron transport.

The plant respiratory chain contains several pathways which bypass the energy-conserving electron transport complexes I, III, and IV. These energy-bypasses, including type II NAD(P)H dehydrogenases and the alternative oxidase (AOX), may have a role in redox-stabilisation and regulation, but current evidence is inconclusive. Using RNA interference, we generated Arabidopsis thaliana plants simultane

Lifetime and baseline alcohol intake and risk of colon and rectal cancers in the European Prospective Investigation into Cancer and Nutrition (EPIC)

Alcohol consumption may be associated with risk of colorectal cancer (CRC), but the epidemiological evidence for an association with specific anatomical subsites, types of alcoholic beverages and current vs. lifetime alcohol intake is inconsistent. Within the European Prospective Investigation into Cancer and Nutrition (EPIC), 478,732 study subjects free of cancer at enrolment between 1992 and 200

John Philoponus against Cosmas Indicopleustes : A Christian Controversy on the Structure of the World in Sixth-Century Alexandria

The scope of this study is to compare John Philoponus and Cosmas Indicopleustes, two Christian individuals of different backgrounds and belonging to different fractions of the Church in the turbulent time for the Church in sixth century Alexandria. Any Christian is likely to feel the need to define how the tenets of his or her faith relate to contemporary science. As long as Christianity has exis

E-commerce effects on packaging logistics research

The new Department of Design Sciences was established as a result of the reorganisation of the Lund Institute of Technology, Lund University. The main ambition of this new department is to facilitate interdisciplinary scientific research and to support the development of new research areas, one of which is packaging logistics where the packaging perspective is used to evaluate and develop logistic

Nanowires in Cell Biology

This thesis explores the interactions between cells and nanowires, to increase our understanding of how cells are affected and how they can be manipulated by these one-dimensional, semiconductor crystals (lengths 1-10 µm, diameters <100 nm). These are much smaller than most mammalian cells (10-30 µm in diameter), and it is generally held that nanowires can be interfaced with cells without adverse

Temperature effects on UV-B induced DNA damage and repair in plants and a lichen

Popular Abstract in Swedish Alla levande organismer har DNA, och eftersom DNA är livsnödvändigt måste det repareras om det blir skadat. Ultraviolett (UV) strålning från solen är en av de vanligaste orsakerna till att DNA skadas. De flesta skador på DNA som orsakas av UV-strålning utgörs av cyklobutan-pyrimidindimerer (CPD) eller (6-4)-fotoprodukter. Dessa skador består av två intilliggande baser sAll living organisms have DNA and since DNA is essential to life it must be repaired when damaged. UV radiation is one of the major DNA damaging agents, which photosynthetic organisms cannot avoid. The major UV-induced DNA lesions are cyclobutane pyrimidine dimers (CPDs) and (6-4) photoproducts (6-4PPs) and the main repair pathways of theses lesions involve photolyases and various excision repair

Sex-biased gene expression on the avian z chromosome: highly expressed genes show higher male-biased expression.

Dosage compensation, the process whereby expression of sex-linked genes remains similar between sexes (despite heterogamety) and balanced with autosomal expression, was long believed to be essential. However, recent research has shown that several lineages, including birds, butterflies, monotremes and sticklebacks, lack chromosome-wide dosage compensation mechanisms and do not completely balance t

Transepithelial exit of leucocytes: inflicting, reflecting or resolving airway inflammation?

The passage of infiltrated tissue granulocytes across airway epithelium into airway lumen is generally considered to be a pathogenic process in asthma and chronic obstructive pulmonary disease (COPD). An alternative hypothesis is proposed here-namely that the transepithelial egression of infiltrated leucocytes acts to rid diseased airway tissues of proinflammatory cells efficiently and non-injurio

Deletion of the p53 tumor suppressor gene improves neuromotor function but does not attenuate regional neuronal cell loss following experimental brain trauma in mice.

Deletion of the tumor suppressor gene p53 has been shown to improve the outcome in experimental models of focal cerebral ischemia and kainate-induced seizures. To evaluate the potential role of p53 in traumatic brain injury, genetically modified mice lacking a functional p53 gene (p53(-/-), n = 9) and their wild-type littermates (p53(+/+), n = 9) were anesthetized and subjected to controlled corti

Prospective Internal Validation of Mathematical Models to Predict Malignancy in Adnexal Masses: Results from the International Ovarian Tumor Analysis Study

Purpose: To prospectively test the mathematical models for calculation of the risk of malignancy in adnexal masses that were developed on the International Ovarian Tumor Analysis (IOTA) phase 1 data set on a new data set and to compare their performance with that of pattern recognition, our standard method. Methods: Three IOTA centers included 507 new patients who all underwent a transvaginal ultr

Measurement of alpha- and beta-secretase cleaved amyloid precursor protein in cerebrospinal fluid from Alzheimer patients

One of the major histopathological hallmarks of Alzheimer's disease (AD) is redundant senile plaques mainly composed of beta-amyloid (Abeta) aggregates. Alternative cleavage of the amyloid precursor protein (APP), occurring in both normal and AD subjects, results in the generation and secretion of soluble APP (sAPP) and Abeta. We examined the cerebrospinal fluid (CSF) for alpha- and beta-secretase

Bias, Misinformation and the Paradox of Neutrality

What is normally described as bias? A possible definition comprises attempts to distort or mislead to achieve a certain perspective, i.e. subjective descriptions intended to mislead. If designers were able to exclude bias from informing systems, then this would maximize their effectiveness. This implicit conjecture appears to underpin much of the research in our field. However, in our efforts to s

The importance of host tree age, size and growth rate as determinants of epiphytic lichen diversity in boreal spruce forests

The amount of large and old trees has decreased in the boreal forests during the last centuries of forestry. Such trees are important habitats for epiphytic lichens and there is a growing concern for lichen species that are associated with large and old trees. However, only little is known about the relative importance of tree size versus age as determinants of lichen diversity. Here we have deter

Detecting violations of sensory expectancies following cerebellar degeneration:

Two hypotheses concerning cerebellar function and predictive behavior are the sensory prediction hypothesis and the timing hypothesis. The former postulates that the cerebellum is critical in generating expectancies regarding forthcoming sensory information. The latter postulates that this structure is critical in generating expectancies that are precisely timed; for example, the expected duration

Antibody formation and specificity in Bethesda-negative brother pairs with haemophilia A.

Antibodies directed towards non-neutralizing epitopes on the factor VIII protein (FVIII) may be detected in patients with haemophilia A. We evaluated the prevalence of non-neutralizing antibodies, in 201 inhibitor-negative brother pairs with severe haemophilia A, enrolled in the Malmö International Brother Study and the Haemophilia Inhibitor Genetics Study. To evaluate binding specificity of the a

Time to pregnancy and infertility among women with a high intake of fish contaminated with persistent organochlorine compounds

OBJECTIVES: The purpose of this study was to assess the effect of persistent organochlorine compounds through the dietary intake of fatty fish from the Baltic Sea on human fertility. METHODS: Information on time to pregnancy, subfertility, and infertility was collected retrospectively by self-administered questionnaires in 2 cohorts of fishermen's wives from the Swedish east (by the Baltic Sea) an

Spatial characteristics of atrial fibrillation using body surface and intra-atrial signals

This licentiate thesis is in the field of biomedical signal processing with main focus on processing of cardiac signals measured on the body surface or invasively from patients with atrial fibrillation (AF). The first part addresses spatial analysis of AF using VCG data synthesized from the 12-lead ECG. Two parameters each are extracted to characterize the spatial orientation as well as the spatia

Cerebrospinal fluid total tau as a marker of Alzheimer's disease intensity.

OBJECTIVES: The aim of this longitudinal study was to test the hypothesis that CSF biomarkers in AD patients also may be forward-looking measures that are associated not only with the degree and profile of cognitive impairment but also with changes in cognition over time. METHODS: Here, we assessed the association of CSF Abeta42, T-tau and P-tau with neuropsychological scores of disease severity,

Gender mainstreaming in humanitarian purchasing

Abstract in UndeterminedIn the humanitarian context, gender mediates access to aid. The gender of the beneficiary is not only intrinsically linked with her/his disaster vulnerability (Enarson, 2002), but also to their ability to physically access aid distribution points (Lutz and Gady, 2004) and even to be considered a beneficiary in the first place. There is, however, yet another factor mitigatin