1,141 research outputs found

    Women and independence in the nineteenth century novel : a study of Austen, Trollope and James

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    'Women and independence in the nineteenth century novel : a study of Austen, Trollope and James', begins with the concept of independence and works through the three most common usages of the word. The first, financial independence (not needing to earn one's livelihood) appears to be a necessary prerequisite for the second and third forms of independence, although it is by no means an unequivocal good in any of the novels. The second, intellectual independence (not depending on others for one's opinion or conduct; unwilling to be under obligation to others), is a matter of asserting independence while employing terms which society recognizes. The third, of being independent, is exemplified by an inward struggle for a knowledge of self. In order to trace the development of the idea of self during the nineteenth century, I have chosen a group of novels which seem to be representative of the beginning, the middle, and the end of the period. Particular attention is given to the characterizations of Emma Woodhouse, Glencora Palliser, Isabel Archer, Milly Theale and Maggie Verver. Whereas in Jane Austen's novels the self has a definite shape which the heroine must discover, and in Anthony Trollope's novels the self (reflecting the idea of socially-determined man) must learn to accommodate social and political changes, in Henry James's novels the self determined by external manifestations (hollow man) is posed against the exercise of the free spirit or soul. Jane Austen's novels look backward, as she reacts against late eighteenth century romanticism, and forward, with the development of the heroine who exemplifies intellectual independence. Anthony Trollope's women characters are creatures of social and political adaptation; although they do not derive their reason for being from men, they must accommodate themselves to men's wishes. And Henry James looks backward, wistfully, at Austen's solid, comforting, innocent self and forward, despairingly, to the dark, unknowable self of the twentieth century

    Handheld-Impedance-Measurement System with seven-decade capability and potentiostatic function

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    This paper describes design and test of a new impedance-measurement system for nonlinear devices that exhibits a seven-decade range and works down to a frequency of 0.01 Hz. The system is specifically designed for electrochemical measurements, but the proposed architecture can be employed in many other fields where flexible signal generation and analysis are required. The system employs an unconventional signal generator based on two pulsewidth modulation (PWM) oscillators and an autocalibration system that allows uncertainties of less than 3% to be obtained over a range of 1 kΩ to 100 GΩ. A synchronous demodulation processing allows the noise superimposed to the low-amplitude input signals to be made negligibl

    Effect of plasmid design and type of integration event on recombinant protein expression in Pichia pastoris

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    (syn. ) is one of the most common eukaryotic expression systems for heterologous protein production. Expression cassettes are typically integrated in the genome to obtain stable expression strains. In contrast to , where short overhangs are sufficient to target highly specific integration, long overhangs are more efficient in and ectopic integration of foreign DNA can occur. Here, we aimed to elucidate the influence of ectopic integration by high-throughput screening of >700 transformants and whole-genome sequencing of 27 transformants. Different vector designs and linearization approaches were used to mimic the most common integration events targeted in Fluorescence of an enhanced green fluorescent protein (eGFP) reporter protein was highly uniform among transformants when the expression cassettes were correctly integrated in the targeted locus. Surprisingly, most nonspecifically integrated transformants showed highly uniform expression that was comparable to specific integration, suggesting that nonspecific integration does not necessarily influence expression. However, a few clones

    Predictors of long-distance race performance in master runners

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    Peak aerobic power (V ̇O2peak) and parameters related to training are associated with long-distance running performance in master athletes. Running economy (RE) predicts performance in younger runners, but its relationship to racing ability in older athletes is unclear. Allometrically scaled RE (alloV ̇O2; ml kg-0.66 min-1), energy cost (EC; kcal kg-1 km-1), and percent of V ̇O2peak (%V ̇O2peak) required in a submaximal bout represent RE more accurately than V ̇O2 does. The VDOT score, estimating V ̇O2peak and RE, can be used to compare races of different distances. Purpose: To determine predictors of temperature-converted VDOT in master runners training for a long-distance race (10-26.2 mi). Methods: Twenty-three master runners (age 57±9 years; eight females) performed treadmill marathon-intensity-effort (MIE) and V ̇O2peak tests within four weeks of their goal race. The MIE occurred at 88% of predicted maximum heart rate, which corresponds to estimated marathon intensity. Participants completed online training-history surveys. Forward stepwise multiple linear regression was used to find key predictors of VDOT. The alpha level for significance was 0.05. Results: Converted VDOT was significantly associated with 3-year peak weekly training distance (3YP) (r = 0.454, p = 0.039), V ̇O2peak (r = 0.845, p = 0.000), alloV ̇O2 (r = 0.623, p = 0.005), and EC (r = -0.528, p = 0.018). The best-fitting model included V ̇O2peak and 3YP (r = 0.898). Conclusion: Physiological and training factors are related to race performance in master runners. The best predictors of VDOT are V ̇O2peak and 3YP. Training to enhance these variables may improve distance-running performance in masters.This study was funded by NIH grant R01 HL208962-05

    Construction of FcHyd5p Variants to Assess the Potential of These Class II Hydrophobins as Molecular Tools for Surface Modification

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    Hydrophobins represent an attractive surface modification technology that can be paired with a variety of fusion partners to increase their versatility. Surface modification is a technique widely used to influence the adhesion of molecules to surfaces. The aim of this project is to assess the potential of the class II HFB FcHyd5p from Fusarium culmorum as a surface modification technique. FcHyd5p variants bearing RGD with two different linker sequences were engineered. Proteins were expressed in Pichia pastoris and purified using fast protein liquid chromatography (FPLC) and affinity chromatography. Bis-Tris-SDS-PAGE confirmed that native and fusion proteins were successfully produced and purified, with yields of the fusion constructs exceeding that of the native. Water contact angle demonstrated that RGD-FcHyd5p constructs could convert surface wettability of siliconized glass. Quartz crystal microbalance with dissipation (QCM-D) quantified HFB adsorption and assessed the effect of the presentation of RGD through different linkers on cell adhesion.M.A.S

    Construction of FcHyd5p Variants to Assess the Potential of These Class II Hydrophobins as Molecular Tools for Surface Modification

    No full text
    Hydrophobins represent an attractive surface modification technology that can be paired with a variety of fusion partners to increase their versatility. Surface modification is a technique widely used to influence the adhesion of molecules to surfaces. The aim of this project is to assess the potential of the class II HFB FcHyd5p from Fusarium culmorum as a surface modification technique. FcHyd5p variants bearing RGD with two different linker sequences were engineered. Proteins were expressed in Pichia pastoris and purified using fast protein liquid chromatography (FPLC) and affinity chromatography. Bis-Tris-SDS-PAGE confirmed that native and fusion proteins were successfully produced and purified, with yields of the fusion constructs exceeding that of the native. Water contact angle demonstrated that RGD-FcHyd5p constructs could convert surface wettability of siliconized glass. Quartz crystal microbalance with dissipation (QCM-D) quantified HFB adsorption and assessed the effect of the presentation of RGD through different linkers on cell adhesion.M.A.S

    What A Waste: Redefining the Private-, Collective-, and Public Space Towards a Circular System for Food and Consumer Goods in the Domestic Domain

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    The scarcity of resources is increasing, resulting in the transformation of entire regions. People take a lot of the resources on Earth for granted. This calls for a transition from the current ‘throw-away’-economy to a ‘circular’ economy. The constant circulation of materials and products in this type of system preserves the value of materials. Academics and practitioners are addressing this transition, but they frequently ignore its social and spatial aspects. A socio-spatial framework for reorganizing a district towards a circular system is proposed in this thesis. The solution presented is fundamentally utopian, aiming to challenge established ideas about the current system. In this thesis, the public space’s redesign serves as an entry point to the private and communal spaces. The design location for this thesis is the Indische Buurt. This district is located in east of Amsterdam. With a large proportion of social housing, the area’s primary use is residential. Additionally, there are a few shopping streets nearby. The approach used in this thesis was context-specific. The three main approaches used were literature reviews, field research, and ‘research by design’. According to the analysis, residents are crucial in deciding whether and how to dispose of things. But at the moment, the area doesn’t have many resources supporting circular behavior. The issue of waste disposal in public areas is one of the effects. In addition, the district has a high proportion of minima-households, little greenery, and roadways that are mostly occupied by parked cars. The primary observation about governance analysis is the lack of emphasis on the spatial implications necessary for the shift to a circular system. The district is reorganized using a spatial framework that was constructed using the R-ladder. The R-ladder is a circularity model made up of ten R-strategies for reducing the amount of materials and resources used in product chains. The higher up the strategy is on the ladder, the more value is retained. Following that, a spatial design for a square and its surrounding streets is proposed. The visibility of circularity is prioritized in this design to enhance public awareness. Furthermore, the design aims to maximize the value retention of materials or products by selecting the solution that best retains value. In addition to the design, recommendations will be made to the governance of the Netherlands and Amsterdam. This will improve the existing circular strategy and policy.Architecture, Urbanism and Building Sciences | Urbanis

    Enzymatic upgrading of heteroxylans for added-value chemicals and polymers

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    | openaire: EC/H2020/648925/EU//BHIVE Funding Information: This work was supported by Genome Canada for the project ‘SYNBIOMICS - Functional genomics and techno-economic models for advanced biopolymer synthesis’ (LSARP, grant number 10405 ), and the European Research Council (ERC) Consolidator Grant ( BHIVE- 648925 ). Publisher Copyright: © 2021 The Author(s)Xylan is one of the most abundant, natural polysaccharides, and much recent interest focuses on upgrading heteroxylan to make use of its unique structures and chemistries. Significant progress has been made in the discovery and application of novel enzymes for debranching and modifying heteroxylans. Debranching enzymes include acetylxylan esterases, α-L-arabinofuranosidases and α-Dglucuronidases that release side groups from the xylan backbone to recover both biochemicals and less substituted xylans for polymer applications in food packaging or drug delivery systems. Besides esterases and hydrolases, many oxidoreductases including carbohydrate oxidases, lytic polysaccharide monooxygenases, laccases and peroxidases have been also applied to alter different types of xylans for improved physical and chemical properties. This review will highlight the recent discovery and application of enzymes for upgrading xylans for use as added-value chemicals and in functional polymers.Peer reviewe
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