304 research outputs found

    Challenging the representation of ethnically divided cities: perspectives from Mostar

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    In this introduction, we discuss the scope of the edited volume by outlining the position of Mostar within much broader academic debates on ‘ethnically divided cities’. We question the representations of such contested cities as hopeless spaces of division, and suggest to explore instead the cracks that challenge overpowering logics of partition: the self-directed attempts at inter-ethnic solidarity, grassroots movements for social justice and dignity, and the inconsistent ways people in these cities inhabit and perform ethnic identities. We also introduce the themes of this Special Issue; Divided Cities as Complex Cities; Memories, Affect and Everyday Life; and Grassroots Politics

    Love, activism, and the possibility of radical social change in Mostar

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    This article reflects on the meanings and possibilities of social change in Mostar, a city more often associated with the seeming impossibility of eradicating ethno-national divisions and corruption that paralyses it. It focuses on the under-researched politics of grassroots activism by drawing on Hardt’s and Negri’s work on the political potential of ‘love’ to shape and propel radical politics. Overall, the article reveals the lack of a cohesive agenda of grassroots politics in Mostar, and asks whether love (that creates and sustains political movement) can educate, patiently, to the revolution

    Model and Design of a Power Driver for Piezoelectric Stack Actuators

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    A power driver has been developed to control piezoelectric stack actuators used in automotive application. An FEM model of the actuator has been implemented starting from experimental characterization of the stack and mechanical and piezoelectric parameters. Experimental results are reported to show a correct piezoelectric actuator driving method and the possibility to obtain a sensorless positioning control

    Awareness, treatment, and control of major cardiovascular risk factors in a small-scale Italian community : results of a screening campaign

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    Introduction: Hypertension, hypercholesterolemia, and diabetes are the main causes of cardiovascular diseases in developed countries. However, these conditions are still poorly recognized and treated. Objective: This study aimed at estimating the prevalence, awareness, treatment, and control rates of major cardiovascular risk factors in an unselected sample of individuals of a small community located in northern Italy. Methods: We screened 344 sequential subjects in this study. Data collection included family and clinical history, anthropometric data, blood pressure, blood glucose, and serum cholesterol values. Individual cardiovascular risk profiles were assessed by risk charts of the Progetto Cuore. Results: Based on personal history and/or measured values, 78.2% of subjects had hypercholesterolemia (total cholesterol levels > 190 mg/dL), 61.0% had central obesity (waist circumference 65 94 cm for men and 6580 cm for women), 51.2% had arterial hypertension (blood pressure 65 140/90 mmHg), 8.1% had diabetes (blood glucose 65 126 mg/dL), 22.7% had impaired fasting glucose (blood glucose 100\u2013125 mg/dL), and 35.5% were overweight (body mass index 25\u201329 kg/m2). Alcohol drinkers and smokers accounted for 46.2% and 22.4% of subjects, respectively. Awareness of hypertension, hypercholesterolemia, and diabetes was poor, and control of these risk factors, except for diabetes, was even worse. Prevalence of high blood pressure, high serum cholesterol, overweight, and obesity significantly increased with aging. Hypercholesterolemia and obesity were significantly more common in women, while overweight and diabetes in men. In 15.4% of participants, the risk of a major cardiovascular event in the next 10 years was either high or very high. Conclusion: In a small community in a wealthy region of Italy, the prevalence of major cardiovascular risk factors is high, while awareness, treatment, and control are poor. Such a result highlights the importance of screening campaigns as a strategy to improve early diagnosis and access to treatment, and thus effective prevention of cardiovascular diseases in the general population

    Nanodiamond quantum sensors reveal temperature variation associated to hippocampal neurons firing

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    Temperature is one of the most relevant parameters for the regulation of intracellular processes. Measuring localized subcellular temperature gradients is fundamental for a deeper understanding of cell function, such as the genesis of action potentials, and cell metabolism. Here, we detect for the first time temperature variations (1{\deg}C) associated with potentiation and depletion of neuronal firing, exploiting a nanoscale thermometer based on optically detected magnetic resonance in nanodiamonds. Our results provide a tool for assessing neuronal spiking activity under physiological and pathological conditions and, conjugated with the high sensitivity of this technique (in perspective sensitive to < 0.1{\deg}C variations), pave the way to a systematic study of the generation of localized temperature gradients. Furthermore, they prompt further studies explaining in detail the physiological mechanism originating this effect.Comment: 27 pages, 5 figures, 3 table

    A PHABULOSA/cytokinin feedback loop controls root growth in arabidopsis

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    The hormone cytokinin (CK) controls root length in Arabidopsis thaliana by defining where dividing cells, derived from stem cells of the root meristem, start to differentiate [ [1], [2], [3], [4], [5] and [6]]. However, the regulatory inputs directing CK to promote differentiation remain poorly understood. Here, we show that the HD-ZIPIII transcription factor PHABULOSA (PHB) directly activates the CK biosynthesis gene ISOPENTENYL TRANSFERASE 7 (IPT7), thus promoting cell differentiation and regulating root length. We further demonstrate that CK feeds back to repress both PHB and microRNA165, a negative regulator of PHB. These interactions comprise an incoherent regulatory loop in which CK represses both its activator and a repressor of its activator. We propose that this regulatory circuit determines the balance of cell division and differentiation during root development and may provide robustness against CK fluctuations
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