654 research outputs found

    A relational comparison:The gendered effects of cross-border work in Palestine within a global frame

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    This article sets the gendered effects of low-wage, cross-border labor in Palestine within a global frame of uneven development. Drawing on fieldwork close to Checkpoint 300, between Bethlehem and Jerusalem, we first provide an account that centers Palestinian women’s social reproduction as coconstitutive of male cross-border employment in the Israeli economy. Discussion then moves to consider gendered work in apartheid-era South Africa with the intention not to draw analogies but to explore how labor articulation situated South Africa within the power geometries of globalization. Returning with these analytical tools, we undertake a relational comparison to reconsider the cross-border as a global space. Cutting-edge security technologies and migrants from Thailand are some of the new objects, ideas, and people that coalesce and reshape Palestinian domestic life. The gendered effects of social reproduction are thus connected to both Israel’s military occupation and its location within global capitalism. The article makes three key contributions by (1) foregrounding women in discussion of cross-border labor, (2) explicating state–global relations in regimes of segregation, and (3) mobilizing relational comparison as a tool for understanding local exploitation within global structures.</p

    The Object Shop – Using CD-ROM Multimedia To Introduce Object Concepts

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    This paper describes key features of a new multimedia CD-ROM pack produced by television makers in collaboration with computer science educators – by the BBC for the Open University Computing Department. The pack, The Object Shop, forms an early component of an undergraduate course which introduces object-oriented computing and software development to students new to computing. Building on the results of empirical evaluation, The Object Shop has been designed to help students with no programming experience to understand core object programming concepts. Throughout the CD-ROM, video, animated graphics and an underlying object-oriented simulation of a virtual shopping environment provide an accessible introduction to the central ideas of object-oriented programming. The key power of the multimedia approach is that the student-user is able to gain a sound operational understanding of concepts before learning the details of programming code or syntax. Users can continually monitor their progress through a series of task-based, assessed exercises

    Geomorphological records of extreme floods and their relationship to decadal-scale climate change

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    Extreme rainfall and flood events in steep upland catchments leave geomorphological traces of their occurrence in the form of boulder berms, debris cones, and alluvial fans. Constraining the age of these features is critical to understanding (i) landscape evolution in response to past, present, and future climate changes; and (ii) the magnitude–frequency of extreme, ungauged floods in small upland catchments. This research focuses on the Cambrian Mountains of Wales, UK, where lichenometric dating of geomorphological features and palaeohydrological reconstructions is combined with climatological data and documentary flood records. Our new data from Wales highlight a distinct flood-rich period between 1900 and 1960, similar to many other UK lichen-dated records. However, this study sheds new light on the underlying climatic controls on upland flooding in small catchments. Although floods can occur in any season, their timing is best explained by the Summer North Atlantic Oscillation (SNAO) and shifts between negative (wetter than average conditions with regular cyclonic flow and flooding) and positive phases (drier than average conditions with less frequent cyclonic flow and flooding), which vary from individual summers to decadal and multidecadal periods. Recent wet summer weath-er, flooding, and boulder-berm deposition in the UK (2007–2012) are related to a pronounced negative phase shift of the SNAO. There is also increasing evidence that recent summer weather extremes in the mid-latitudes may be related to Arctic amplification and rapid sea ice loss. If this is the case, continuing and future climate change is likely to mean that (i) unusual weather patterns become more frequent; and (ii) upland UK catchments will experience heightened flood risk and significant geomorphological changes

    Bacterial physiological adaptations to contrasting edaphic conditions identified using landscape scale metagenomics

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    This project was funded by the UK Natural Environment Research Council (standard grant NE/E006353/1 to R.I.G., A.S.W., and M.B. and Soil Security grant NE/M017125/1 to R.I.G.). A.A.M. has received funding from the European Union’s Horizon 2020 Research and Innovation Program under Marie Skłodowska-Curie grant no. 655240. We wish to further acknowledge the lab assistance of Phillip James and the staff at the NERC Biomolecular Analysis Facility, University of Liverpool, United Kingdom.Peer reviewedPublisher PD

    Successful use of axonal transport for drug delivery by synthetic molecular vehicles

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    We report the use of axonal transport to achieve intraneural drug delivery. We constructed a novel tripartite complex of an axonal transport facilitator conjugated to a linker molecule bearing up to a hundred reversibly attached drug molecules. The complex efficiently enters nerve terminals after intramuscular or intradermal administration and travels within axonal processes to neuron cell bodies. The tripartite agent provided 100-fold amplification of saturable neural uptake events, delivering multiple drug molecules per complex. _In vivo_, analgesic drug delivery to systemic and to non-targeted neural tissues was greatly reduced compared to existing routes of administration, thus exemplifying the possibility of specific nerve root targeting and effectively increasing the potency of the candidate drug gabapentin 300-fold relative to oral administration

    CpG-island fragments from the HNRPA2B1/CBX3 genomic locus reduce silencing and enhance transgene expression from the hCMV promoter/enhancer in mammalian cells

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    BACKGROUND: The hCMV promoter is very commonly used for high level expression of transgenes in mammalian cells, but its utility is hindered by transcriptional silencing. Large genomic fragments incorporating the CpG island region of the HNRPA2B1 locus are resistant to transcriptional silencing. RESULTS: In this report we describe studies on the use of a novel series of vectors combining the HNRPA2B1 CpG island with the hCMV promoter for expression of transgenes in CHO-K1 cells. We show that the CpG island gives at least twenty-fold increases in the levels of EGFP and EPO observed in pools of transfectants, and that transgene expression levels remain high in such pools for more than 100 generations. These novel vectors also allow facile isolation of clonal CHO-K1 cell lines showing stable, high-level transgene expression. CONCLUSION: Vectors incorporating the hnRPA2B1 CpG island give major benefits in transgene expression from the hCMV promoter, including substantial improvements in the level and stability of expression. The utility of these vectors for the improved production of recombinant proteins in CHO cells has been demonstrated

    IBD genetic risk profile in healthy first-degree relatives of Crohn's disease patients

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    BACKGROUND: Family history provides important information on risk of developing inflammatory bowel disease [IBD], and genetic profiling of first-degree relatives [FDR] of Crohn's disease [CD]- affected individuals might provide additional information. We aimed to delineate the genetic contribution to the increased IBD susceptibility observed in FDR. METHODS: N = 976 Caucasian, healthy, non-related FDR; n = 4997 independent CD; and n = 5000 healthy controls [HC]; were studied. Genotyping for 158 IBD-associated single nucleotide polymorphisms [SNPs] was performed using the Illumina Immunochip. Risk allele frequency [RAF] differences between FDR and HC cohorts were correlated with those between CD and HC cohorts. CD and IBD genetic risk scores [GRS] were calculated and compared between HC, FDR, and CD cohorts. RESULTS: IBD-associated SNP RAF differences in FDR and HC cohorts were strongly correlated with those in CD and HC cohorts, correlation coefficient 0.63 (95% confidence interval [CI] 0.53 - 0.72), p = 9.90 x 10(-19). There was a significant increase in CD-GRS [mean] comparing HC, FDR, and CD cohorts: 0.0244, 0.0250, and 0.0257 respectively [p < 1.00 x 10(-7) for each comparison]. There was no significant difference in the IBD-GRS between HC and FDR cohorts [p = 0.81]; however, IBD-GRS was significantly higher in CD compared with FDR and HC cohorts [p < 1.00 x 10(-10) for each comparison]. CONCLUSION: FDR of CD-affected individuals are enriched with IBD risk alleles compared with HC. Cumulative CD-specific genetic risk is increased in FDR compared with HC. Prospective studies are required to determine if genotyping would facilitate better risk stratification of FDR

    Analysis of lesion localisation at colonoscopy: outcomes from a multi-centre U.K. study

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    Background: Colonoscopy is currently the gold standard for detection of colorectal lesions, but may be limited in anatomically localising lesions. This audit aimed to determine the accuracy of colonoscopy lesion localisation, any subsequent changes in surgical management and any potentially influencing factors. Methods: Patients undergoing colonoscopy prior to elective curative surgery for colorectal lesion/s were included from 8 registered U.K. sites (2012–2014). Three sets of data were recorded: patient factors (age, sex, BMI, screener vs. symptomatic, previous abdominal surgery); colonoscopy factors (caecal intubation, scope guide used, colonoscopist accreditation) and imaging modality. Lesion localisation was standardised with intra-operative location taken as the gold standard. Changes to surgical management were recorded. Results: 364 cases were included; majority of lesions were colonic, solitary, malignant and in symptomatic referrals. 82% patients had their lesion/s correctly located at colonoscopy. Pre-operative CT visualised lesion/s in only 73% of cases with a reduction in screening patients (64 vs. 77%; p = 0.008). 5.2% incorrectly located cases at colonoscopy underwent altered surgical management, including conversion to open. Univariate analysis found colonoscopy accreditation, scope guide use, incomplete colonoscopy and previous abdominal surgery significantly influenced lesion localisation. On multi-variate analysis, caecal intubation and scope guide use remained significant (HR 0.35, 0.20–0.60 95% CI and 0.47; 0.25–0.88, respectively). Conclusion: Lesion localisation at colonoscopy is incorrect in 18% of cases leading to potentially significant surgical management alterations. As part of accreditation, colonoscopists need lesion localisation training and awareness of when inaccuracies can occur
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