Characterization Of Populations Of Fusarium Oxysporum F. Sp. Cubense And Selection Of Somaclonal Variants Tolerant To Banana Wilt Desease

Sebanyak 40 isolat Fusarium oxysporum f. sp. cubense (FOC) dari Indonesia, Sumatra, dan Semenanjung Malaysia yang dipencil dan pelbagai variety pisang utama di Asia tenggara telah dikenalpasti dari segi morfologi, ras dan keserasian vegetatifnya. Keputusan analisis keserasian vegetatif (VCG) menunjukkan kehadiran 'clonal lineages' di Semenanjung Malaysia. Sebanyak 12 kelompok keserasian vegetatif telah dikenalpasti. Lima kelompok adalah sarna dengan VCG 0121, VCG 0124, VCG 01213, VCG 01216 dan VCG 01213/01216. Tujuh kelompok yang lain tidak dapat dikategorikan menggunakan sistem VCG yang sedia ada. Forty isolates of Fusarium oxysporum f. sp cubense (Foc) located in Indonesia (Sumatra) and Peninsular Malaysia were isolated from a diverse banana variety host range which included all significant South East Asian cultivars were characterized by morphology, race and vegetative compatibility (VCG). There appeared no direct pattern of association between race, VCG and morphological characteristics. VCG analysis indicated that there were several distinct clonal lineages present in Peninsular Malaysia. Twelve compatibility groups were identified, five of which were previously characterized as VCG 0121, VCG 0124, VCG 01213, VCG 01216 and VCG 01213/01216

Using Worker Participation and Buyouts to Save Jobs

This book probes the effectiveness of two job-saving strategies, worker buyouts and QWL (quality of worklife) programs, used to try to reverse the shutdown of a chain of supermarkets in Philadelphia.https://research.upjohn.org/up_press/1113/thumbnail.jp

Job-Saving Strategies: Worker Buyouts and QWL

This book probes the effectiveness of two job-saving strategies, worker buyouts and QWL (quality of worklife) programs, used to try to reverse the shutdown of a chain of supermarkets in Philadelphia.https://research.upjohn.org/up_press/1113/thumbnail.jp

Influence of case definition on incidence and outcome of acute coronary syndromes

© 2016, BMJ Publishing Group. All rights reserved. Objective: Acute coronary syndromes (ACS) are common, but their incidence and outcome might depend greatly on how data are collected. We compared case ascertainment rates for ACS and myocardial infarction (MI) in a single institution using several different strategies. Methods: The Hull and East Yorkshire Hospitals serve a population of ∼560 000. Patients admitted with ACS to cardiology or general medical wards were identified prospectively by trained nurses during 2005. Patients with a death or discharge code of MI were also identified by the hospital information department and, independently, from Myocardial Infarction National Audit Project (MINAP) records. The hospital laboratory identified all patients with an elevated serum troponin-T (TnT) by contemporary criteria ( > 0.03 μg/L in 2005). Results: The prospective survey identified 1731 admissions (1439 patients) with ACS, including 764 admissions (704 patients) with MIs. The hospital information department reported only 552 admissions (544 patients) with MI and only 206 admissions (203 patients) were reported to the MINAP. Using all 3 strategies, 934 admissions (873 patients) for MI were identified, for which TnT was > 1 μg/L in 443, 0.04-1.0 μg/L in 435, =0.03 μg/L in 19 and not recorded in 37. A further 823 patients had TnT > 0.03 μg/L, but did not have ACS ascertained by any survey method. Of the 873 patients with MI, 146 (16.7%) died during admission and 218 (25.0%) by 1 year, but ranging from 9% for patients enrolled in the MINAP to 27% for those identified by the hospital information department. Conclusions: MINAP and hospital statistics grossly underestimated the incidence of MI managed by our hospital. The 1-year mortality was highly dependent on the method of ascertainment

Horizontal supergranule-scale motions inferred from TRACE ultraviolet observations of the chromosphere

We study horizontal supergranule-scale motions revealed by TRACE observation of the chromospheric emission, and investigate the coupling between the chromosphere and the underlying photosphere. A highly efficient feature-tracking technique called balltracking has been applied for the first time to the image sequences obtained by TRACE (Transition Region and Coronal Explorer) in the passband of white light and the three ultraviolet passbands centered at 1700 {\AA}, 1600 {\AA}, and 1550 {\AA}. The resulting velocity fields have been spatially smoothed and temporally averaged in order to reveal horizontal supergranule-scale motions that may exist at the emission heights of these passbands. We find indeed a high correlation between the horizontal velocities derived in the white-light and ultraviolet passbands. The horizontal velocities derived from the chromospheric and photospheric emission are comparable in magnitude. The horizontal motions derived in the UV passbands might indicate the existence of a supergranule-scale magnetoconvection in the chromosphere, which may shed new light on the study of mass and energy supply to the corona and solar wind at the height of the chromosphere. However, it is also possible that the apparent motions reflect the chromospheric brightness evolution as produced by acoustic shocks which might be modulated by the photospheric granular motions in their excitation process, or advected partly by the supergranule-scale flow towards the network while propagating upward from the photosphere. To reach a firm conclusion, it is necessary to investigate the role of granular motions in the excitation of shocks through numerical modeling, and future high-cadence chromospheric magnetograms must be scrutinized.Comment: 5 figures, accepted by Astronomy & Astrophysic

Unsupervised machine learning for transient discovery in deeper, wider, faster light curves

Identification of anomalous light curves within time-domain surveys is often challenging. In addition, with the growing number of wide-field surveys and the volume of data produced exceeding astronomers’ ability for manual evaluation, outlier and anomaly detection is becoming vital for transient science. We present an unsupervised method for transient discovery using a clustering technique and the ASTRONOMALY package. As proof of concept, we evaluate 85 553 min-cadenced light curves collected over two ∼1.5 h periods as part of the Deeper, Wider, Faster program, using two different telescope dithering strategies. By combining the clustering technique HDBSCAN with the isolation forest anomaly detection algorithm via the visual interface of ASTRONOMALY, we are able to rapidly isolate anomalous sources for further analysis. We successfully recover the known variable sources, across a range of catalogues from within the fields, and find a further seven uncatalogued variables and two stellar flare events, including a rarely observed ultrafast flare (∼5 min) from a likely M-dwarf

Redistribution of protein kinase C isoforms in rat pancreatic acini during lactation and weaning

Freshly enzymatically isolated pancreatic acini from lactating and weaning Wistar rats were used to investigate the role of protein kinase C (PKC) isoforms during these physiologically relevant pancreatic secretory and growth processes. The combination of immunoblot and immunohistochemical analysis shows that the PKC isoforms ¿, ¿, and ¿ are present in pancreatic acini from control, lactating and weaning rats. A vesicular distribution of PKC-¿, -¿, and -¿ was detected by immunohistochemical analysis in the pancreatic acini from all the experimental groups. PKC-¿ showed the strongest PKC immunoreactivity (PKC-IR). In this vesicular distribution, PKC-IR was located at the apical region of the acinar cells. No differences were observed between control, lactating and weaning rats. However, the immunoblot analysis of pancreatic PKC isoforms during lactation and weaning showed a significant translocation of PKC-¿ from the cytosol to the membrane fraction when compared with control animals. Translocation of PKC isoforms (¿, ¿ and ¿) in response to 12-O-tetradecanoyl phorbol 13-acetate (TPA) 1 ¿M (15 min, 37°C) was comparable in pancreatic acini from control, lactating and weaning rats. In the control group, a significant translocation of all the isoforms (¿, ¿ and ¿) from the cytosol to the membrane was observed. The PKC isoform most translocated by TPA was PKC-¿. In contrast, no statistically significant increase in PKC-¿ translocation was detected in pancreatic acini isolated from lactating or weaning rats. These results suggest that the PKC isoforms are already translocated to the surface of the acinar cells from lactating or weaning rats. In addition, they suggest that isoform specific spatial PKC distribution and translocation occur in association with the growth response previously described in the rat exocrine pancreas during lactation and weaning