301 research outputs found

    Re-hackling flax before spinning

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    Flax is a traditional plant used to make textiles. Flax, like all natural fibres, is a material with variations. Knowledge of a crafting process can be obtained by studying artefacts and all available documentation and by being present in a craft tradition and society of spinning. A craftsperson will make many small decisions during their work. How do we gain knowledge about handling materials, and how do we preserve the intangible skills relevant to a craft? This performance article aims to make visible specific knowledge of material, tools and working methods for re-hackling flax. The text and performance illustrate the perspective of a reflecting craftsperson. By asking questions about the work process, critical decisions regarding crafts will be highlighted. This approach will help preserve and transmit craft skills within flax processing

    Horsehair weaving for sievewrights

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    This paper aims to discuss methods for reviving a craft – horsehair weaving – inspired by the concept of a moving searchlight approach and a forensic perspective. Isolated artefacts, tools, tools with ongoing processes and photographs, together with preserved documentation, have been analysed. Ongoing documentation on social media and a webpage were used during this process. Social media aimed to get people interested in the subject, test thoughts and maintain a dialogue. The webpage aimed to gather documentation demonstrating the horsehair weaving process and how the sievewright was made. The public documentation also aimed to inspire and engage other crafters. The public display of the ongoing project has been a positive learning experience. Different methods of documentation have different advantages

    miR-26b Promotes Granulosa Cell Apoptosis by Targeting ATM during Follicular Atresia in Porcine Ovary

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    More than 99% of ovarian follicles undergo atresia in mammals, but the mechanism of follicular atresia remains to be elucidated. In this study, we explored microRNA (miRNA) regulation of follicular atresia in porcine ovary. A miRNA expression profile was constructed for healthy, early atretic, and progressively atretic follicles, and the differentially expressed miRNAs were selected and analyzed. We found that miR-26b, which was upregulated during follicular atresia, increased the number of DNA breaks and promoted granulosa cell apoptosis by targeting the ataxia telangiectasia mutated gene directly in vitro

    MicroRNAs hsa-miR-99b, hsa-miR-330, hsa-miR-126 and hsa-miR-30c: Potential Diagnostic Biomarkers in Natural Killer (NK) Cells of Patients with Chronic Fatigue Syndrome (CFS)/ Myalgic Encephalomyelitis (ME)

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    Chronic Fatigue Syndrome (CFS/ME) is a complex multisystem disease of unknown aetiology which causes debilitating symptoms in up to 1% of the global population. Although a large cohort of genes have been shown to exhibit altered expression in CFS/ME patients, it is currently unknown whether microRNA (miRNA) molecules which regulate gene translation contribute to disease pathogenesis. We hypothesized that changes in microRNA expression in patient leukocytes contribute to CFS/ME pathology, and may therefore represent useful diagnostic biomarkers that can be detected in the peripheral blood of CFS/ME patients.miRNA expression in peripheral blood mononuclear cells (PBMC) from CFS/ME patients and healthy controls was analysed using the Ambion Bioarray V1. miRNA demonstrating differential expression were validated by qRT-PCR and then replicated in fractionated blood leukocyte subsets from an independent patient cohort. The CFS/ME associated miRNA identified by these experiments were then transfected into primary NK cells and gene expression analyses conducted to identify their gene targets.Microarray analysis identified differential expression of 34 miRNA, all of which were up-regulated. Four of the 34 miRNA had confirmed expression changes by qRT-PCR. Fractionating PBMC samples by cell type from an independent patient cohort identified changes in miRNA expression in NK-cells, B-cells and monocytes with the most significant abnormalities occurring in NK cells. Transfecting primary NK cells with hsa-miR-99b or hsa-miR-330-3p, resulted in gene expression changes consistent with NK cell activation but diminished cytotoxicity, suggesting that defective NK cell function contributes to CFS/ME pathology.This study demonstrates altered microRNA expression in the peripheral blood mononuclear cells of CFS/ME patients, which are potential diagnostic biomarkers. The greatest degree of miRNA deregulation was identified in NK cells with targets consistent with cellular activation and altered effector function
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