169,765 research outputs found
Inequality determined social outcomes of low-carbon transition policies: A conceptual meta-review of justice impacts
No full textInequality and climate change represent two key challenges in modern societies across the world. In this paper, we provide a critical engagement with the literature that treats aggravated social and economic inequalities as (potential) negative outcomes of climate and low-carbon transition policies that aim to achieve carbon emission reductions in energy and transport sectors. We introduce a conceptual meta-review that systematises but also departs from three existing literature reviews by challenging the prevailing treatment of inequalities as ex-post negative outcomes. Instead, we draw on literature that treats multifaceted inequalities as systemic occurrences that are rooted in socio-economic structures. Therefore, the conceptual meta-review exhibits an inequality filter which shapes the nature of policy costs, benefits and compliance. In other words, multifaceted inequalities are treated as ex-ante phenomena that interact with climate and low-carbon transition policies. This interaction then determines social outcomes in terms of energy access, health, employment, essential goods affordability and livelihoods. Each of these outcomes then feed back into the inequality filter where existing inequalities are either amplified or diminished. In order to examine the efficacy of our conceptual framework, we also provide a limited review of more recent literature that discusses the social outcomes of climate and low-carbon transition policies as well as measures to prevent negative social outcomes. Altogether, this paper suggests that the mitigation of systemic inequalities, rather than the prevention of aggravated inequalities, is necessary to avert the transmission from climate and low-carbon policies to negative social outcomes
Narrowing women's time and income gaps: An assessment of the synergies between working time reduction and universal income schemes
No full textThis paper departs from the hypothesis that policies targeting time poverty have the potential to reduce the gender income gap through the redistribution of time use between women and men. To this purpose, we compare two policy mixes and assess the synergies between working time reduction and two univer-sal income schemes: a basic income and care income programme. While the former provides every indi-vidual with an equal monetary benefit, the latter ties monetary benefits to the amount of unpaid and care work performed by individuals. We assess the impact of these policy mixes by applying Eurogreen, a macrosimulation model tailored to Italy. Results suggest that while working time reduction directly drives a reduction of the aggregate amount of time spent by women in unpaid work, this does not imply a reduction in time poverty. The universal income schemes - and in particular the care income - promote a reduction of gender inequality in terms of income by sustaining women's total income, but leave the wage gap between women and men unchanged.(c) 2023 Elsevier Ltd. All rights reserved
Narrowing women's time and income gaps: An assessment of the synergies between working time reduction and universal income schemes
No full textThis paper departs from the hypothesis that policies targeting time poverty have the potential to reduce the gender income gap through the redistribution of time use between women and men. To this purpose, we compare two policy mixes and assess the synergies between working time reduction and two universal income schemes: a basic income and care income programme. While the former provides every individual with an equal monetary benefit, the latter ties monetary benefits to the amount of unpaid and care work performed by individuals. We assess the impact of these policy mixes by applying Eurogreen, a macrosimulation model tailored to Italy. Results suggest that while working time reduction directly drives a reduction of the aggregate amount of time spent by women in unpaid work, this does not imply a reduction in time poverty. The universal income schemes – and in particular the care income – promote a reduction of gender inequality in terms of income by sustaining women's total income, but leave the wage gap between women and men unchanged
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Mitomycin C in highly myopic eyes - Author reply
No full textOphthalmology. 2005 Feb;112(2):208-18; discussion 219.
Mitomycin C modulation of corneal wound healing after photorefractive keratectomy in highly myopic eyes.
Gambato C, Ghirlando A, Moretto E, Busato F, Midena E.
SourceRefractive Surgery Service and Antimetabolite Therapy Research Unit, Department of Ophthalmology, University of Padova, Padova, Italy.
Abstract
PURPOSE: To evaluate the role of topical mitomycin C in corneal wound healing (CWH) after photorefractive keratectomy (PRK) in highly myopic eyes.
DESIGN: Prospective, double-masked, randomized clinical trial.
PARTICIPANTS: Seventy-two eyes of 36 patients affected by high (>7 diopters) myopia.
METHODS: In each patient, one eye was randomly assigned to PRK with intraoperative topical 0.02% mitomycin C application, and the fellow eye was treated with a placebo. Postoperatively, mitomycin C-treated eyes received artificial tears (3 times daily, tapered in 3 months), whereas the fellow eye was treated with fluorometholone sodium 2% and artificial tears (3 times daily, tapered in 3 months).
MAIN OUTCOME MEASURES: Uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), contrast sensitivity, manifest refraction, and biomicroscopy. Contrast sensitivity was determined using the Pelli-Robson chart. Corneal confocal microscopy documented CWH.
RESULTS: Mean follow-up was 18 months (range, 12-36). No side effects or toxic effects were documented. At 12-month follow-up examination, UCVAs (logarithm of the minimum angle of resolution) were 0.4+/-0.48 and 0.5+/-0.53 (P = .03) in mitomycin C-treated eyes and corticosteroid-treated eyes, respectively. At 1 year, corneal haze developed in 20% of corticosteroid-treated eyes, versus 0% of mitomycin C-treated eyes. At 12, 24, and 36 months, corneal confocal microscopy showed activated keratocytes and extracellular matrix significantly more evident in untreated eyes (Ps = 0.004, 0.024, and 0.046, respectively).
CONCLUSION: Topical intraoperative application of 0.02% mitomycin C can reduce haze formation in highly myopic eyes undergoing PRK.
Comment in
Ophthalmology. 2006 Feb;113(2):357; author reply 357-8
Biomimetic Nanopores with Yeast Nucleoporins
No full textNuclear pore complexes (NPC’s) facilitate the exchange of macromolecules between the cytoplasm and nucleus and act as a selective barrier for macromolecules in eukaryotes. Ongoing research suggests that the discriminatory function of the NPC is caused by nucleoporins rich in phenylalanine-glycine amino acids residue repeats (FG-regions) which fill the nuclear pore. To determine if the FG-domains are responsible for the selectivity of a NPC, in this research we will mimic a nuclear pore complex by coating a solid state nanopore with yeast FG-nup-NSP1. After coating a wild-type nucleoporin, to a solid-state nanopore, we find that a yeast importer protein kap95 was able to translocate through the nanopore. The dwell times were on the order of tens of milliseconds. An artificial control protein, tCherry, with the same size as kap95, was not able to pass the artificial NPC. Bycoating a solid-state nanopore with mutated FG-nup-NSP1, where hydrophobic amino acid residues (F, I, L and V) were replaced with serine, we found that kap95 translocated with much lower translocation times, comparable to an uncoated nanopore, indicating less interaction with the mutated nucleoporins. Furthermore tCherry was also able to pass through the mimicked nuclear pore with mutated nucleoporins, making a very strong argument that FG-repeat regions in nucleoporins are responsible for the selectivity in NPC’s.Applied Physic
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
A Multi-Language Comparison of Influences on Author Verification using Character N-Grams
No full textWe create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc
A 0.12mm<sup>2</sup> Wien-Bridge Temperature Sensor with 0.1°C (3σ) Inaccuracy from -40°C to 180°C
No full text Resistor-based temperature sensors can achieve much higher resolution and energy efficiency than conventional BJT-based sensors [1], but they typically occupy more area (> 0.25 mm 2 ) and have lower operating temperatures (le 125 {circ} {C}) [2]-[4]. This work describes a 0.12mm 2 resistor-based sensor that uses a Wien-bridge (WB) filter to achieve 0.1 {circ} {C} (3 sigma) inaccuracy from - 40 {circ} {C} to 180 {circ} {C}. Compared to a state-of-the-art WB sensor [4], it occupies 6 × less area and achieves comparable relative accuracy over a 76% wider operating range. Session 10.3 Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Electronic InstrumentationMicroelectronic
A ±25A Versatile Shunt-Based Current Sensor with 10kHz Bandwidth and ±0.25% Gain Error from -40°C to 85°C Using 2-Current Calibration
No full textAccurate current sensing is critical in many industrial applications, such as battery management and motor control. Precise shunt-based current sensors have been reported with gain errors of less than 1% over the industrial temperature range (-40°C to 85°C) [1]–[4]. However, since they are intended for coulomb counting, their bandwidth is limited to a few tens of Hz, making them unsuitable for battery impedance or motor-current sensing. This paper presents a current sensor with a wide (10kHz) bandwidth and a tunable temperature compensation scheme (TCS), which allows it to be flexibly used with different types of shunts while maintaining high accuracy. A low-cost room-temperature calibration scheme is proposed to optimize gain flatness over temperature by exploiting the shunt's self-heating at large currents. Over the industrial temperature range and a ±25A current range, it achieves state-of-the-art gain error (±0.25%) with both low-cost PCB and stable metal-alloy shunts.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Electronic InstrumentationMicroelectronic
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