83 research outputs found

    Loligo Fishing and the Villagers’Life:A Case Study in Small Zuo of Hun’An,Fu Jian

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    本研究是以福建省泉州市惠安县小岞镇的鱿鱼为研究对象,从人类学与民族学的角度对该镇的鱿鱼垂钓作业做一考察。该镇的鱿鱼捕捞产量在国内长期居于前列,即使当今社会有越来越多的沿海地区加入了鱿鱼捕捞之列,小岞生产的鱿鱼在人们的心目中依然占有非常重要的位置。调查发现,小岞地区鱿鱼的捕捞、加工、售卖等与其他地方相比有其特殊性,同时此因素也使得该地区及周边的乡民予以鱿鱼更多的附加价值。近年来随着社会的发展,小岞地区与外界的互动不断增多,使得此地的年轻人有更多的机会走出小岞而入职其他行业,因而从事渔业捕捞的人不断减少。本文即致力于鱿鱼垂钓作业的准备工作、生产与消费、捕鱼组织群体、鱿鱼对乡民生活的影响等方面的研究...This study is based on the loligo in the Small Zuo of Hui’An, Quanzhou, Fujian, from the point of view of Anthropological and Ethnological Sciences squid fishing operations of the town to do an inspection. Town of squid fishing output has been among the best in the country, even in today's society more and more coastal areas to join squid fishing out small Zuo production of squid still occupies a ...学位:法学硕士院系专业:人文学院人类学研究所_民族学学号:1062010115214

    Novel bioprinted 3D model to human fibrosis investigation

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    Fibrosis is shared in multiple diseases with progressive tissue stiffening, organ failure and limited therapeutic options. This unmet need is also due to the lack of adequate pre-clinical models to mimic fibrosis and to be challenged novel by anti-fibrotic therapeutic venues. Here using bioprinting, we designed a novel 3D model where normal human healthy fibroblasts have been encapsulated in type I collagen. After stimulation by Transforming Growth factor beta (TGFβ), embedded cells differentiated into myofibroblasts and enhanced the contractile activity, as confirmed by the high level of α − smooth muscle actin (αSMA) and F-actin expression. As functional assays, SEM analysis revealed that after TGFβ stimulus the 3D microarchitecture of the scaffold was dramatically remolded with an increased fibronectin deposition with an abnormal collagen fibrillar pattern. Picrius Sirius Red staining additionally revealed that TGFβ stimulation enhanced of two logarithm the collagen fibrils neoformation in comparison with control. These data indicate that by bioprinting technology, it is possible to generate a reproducible and functional 3D platform to mimic fibrosis as key tool for drug discovery and impacting on animal experimentation and reducing costs and time in addressing fibrosis

    Human Adipose Mesenchymal Stromal/Stem Cells Improve Fat Transplantation Performance

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    The resorption rate of autologous fat transfer (AFT) is 40–60% of the implanted tissue, requiring new surgical strategies for tissue reconstruction. We previously demonstrated in a rabbit model that AFT may be empowered by adipose-derived mesenchymal stromal/stem cells (AD-MSCs), which improve graft persistence by exerting proangiogenic/anti-inflammatory effects. However, their fate after implantation requires more investigation. We report a xenograft model of adipose tissue engineering in which NOD/SCID mice underwent AFT with/without human autologous AD-MSCs and were monitored for 180 days (d). The effect of AD-MSCs on AFT grafting was also monitored by evaluating the expression of CD31 and F4/80 markers. Green fluorescent protein-positive AD-MSCs (AD-MSC-GFP) were detected in fibroblastoid cells 7 days after transplantation and in mature adipocytes at 60 days, indicating both persistence and differentiation of the implanted cells. This evidence also correlated with the persistence of a higher graft weight in AFT-AD-MSC compared to AFT alone treated mice. An observation up to 180 d revealed a lower resorption rate and reduced lipidic cyst formation in the AFT-AD-MSC group, suggesting a long-term action of AD-MSCs in support of AFT performance and an anti-inflammatory/proangiogenic activity. Together, these data indicate the protective role of adipose progenitors in autologous AFT tissue resorption

    Catching a Ball at the Right Time and Place: Individual Factors Matter

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    Intercepting a moving object requires accurate spatio-temporal control. Several studies have investigated how the CNS copes with such a challenging task, focusing on the nature of the information used to extract target motion parameters and on the identification of general control strategies. In the present study we provide evidence that the right time and place of the collision is not univocally specified by the CNS for a given target motion; instead, different but equally successful solutions can be adopted by different subjects when task constraints are loose. We characterized arm kinematics of fourteen subjects and performed a detailed analysis on a subset of six subjects who showed comparable success rates when asked to catch a flying ball in three dimensional space. Balls were projected by an actuated launching apparatus in order to obtain different arrival flight time and height conditions. Inter-individual variability was observed in several kinematic parameters, such as wrist trajectory, wrist velocity profile, timing and spatial distribution of the impact point, upper limb posture, trunk motion, and submovement decomposition. Individual idiosyncratic behaviors were consistent across different ball flight time conditions and across two experimental sessions carried out at one year distance. These results highlight the importance of a systematic characterization of individual factors in the study of interceptive tasks

    Towards a muon collider

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    ITER Plasma Scenarios scaled from ASDEX Upgrade and JET experimental data and their impact on ITER operational space the ASDEX Upgrade Team 4 and JET EFDA contributors

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    Theoretical predictions and experimental data have been extensively used to establish the range of variation of the ITER plasma scenario parameters [1] since they have a direct impact on the dimensioning of the PF (Poloidal Field) system and on the design of the first wall components. Compared to today's experiments, the working margins adopted for the ITER design are reduced. For each type of ramp-up, a suitable number of equilibrium conditions have been obtained optimizing PF currents and plasma shapes with a constrained optimization procedure based on the CREATE numerical codes (se

    ITER Plasma Scenarios scaled from ASDEX Upgrade and JET experimental data and their impact on ITER operational space the ASDEX Upgrade Team 4 and JET EFDA contributors

    No full text
    Theoretical predictions and experimental data have been extensively used to establish the range of variation of the ITER plasma scenario parameters [1] since they have a direct impact on the dimensioning of the PF (Poloidal Field) system and on the design of the first wall components. Compared to today's experiments, the working margins adopted for the ITER design are reduced. For each type of ramp-up, a suitable number of equilibrium conditions have been obtained optimizing PF currents and plasma shapes with a constrained optimization procedure based on the CREATE numerical codes (se
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