587 research outputs found
Sow body condition at weaning and reproduction performance in organic piglet production
The objective was to investigate the variation in backfat at weaning and its relations to reproduction results in organic sow herds in Denmark. The study included eight herds and 573 sows. The average backfat at weaning mean�13 mm; SD�4.2 mm) ranging from 10.5 to 17.3 mm among herds shows that it is possible to avoid poor body condition at weaning even with a lactation length of seven weeks or more. No main effect of backfat at weaning on reproduction performance was found, but the probability of a successful reproduction after weaning tended to decrease with decreasing backfat for first parity sows, whereas the opposite was the case for multiparous sows
Online Bayesian Optimization for a Recoil Mass Separator
The SEparator for CApture Reactions (SECAR) is a next-generation recoil
separator system at the Facility for Rare Isotope Beams (FRIB) designed for the
direct measurement of capture reactions on unstable nuclei in inverse
kinematics. To maximize the performance of this system, stringent requirements
on the beam alignment to the central beam axis and on the ion-optical settings
need to be achieved. These can be difficult to attain through manual tuning by
human operators without potentially leaving the system in a sub-optimal and
irreproducible state. In this work, we present the first development of online
Bayesian optimization with a Gaussian process model to tune an ion beam through
a nuclear astrophysics recoil separator. We show that this method achieves
small incoming angular deviations (\textless 1 mrad) in an efficient and
reproducible manner that is at least three times faster than standard
hand-tuning. Additionally, we present a Bayesian method for experimental
optimization of the ion optics, and show that it validates the nominal
theoretical ion-optical settings of the device, and improves the mass
separation by 32\% for some beams
Ups and Downs in Finance, Ups without Downs in Inequality
The upswing in finance over the past several decades has led to rising inequality, but do downswings in finance lead to a symmetric decline in inequality? In this paper, we analyze the asymmetry of the effect of ups and downs in financial markets, as well as the effect of increased capital requirements and the bonus cap on national earnings in- equality. We use administrative employer–employee linked data on earnings from 1990 to 2017 for twelve countries. Additionally, we use data on earnings from bank reports, from 2009 to 2017 in thirteen European countries. We find a strong asymmetry in the effects of financial ups and downs on earnings inequality, a mitigating effect of rising capital requirements on the contribution of finance to inequality, and a restructuring ef- fect of the bonus cap for the earnings of financiers, while neither policy affects absolute levels of earnings inequality.La hausse de la finance au cours des dernières décennies a entraîné une hausse des inégalités, mais les ralentissements de la finance entraînent-ils une baisse symétrique des inégalités? Dans cet article, nous examinons l'asymétrie de l'effet des hausses et des ralentissements des marchés financiers, ainsi que l'effet de l'augmentation des exi- gences en matière de capital et du plafonnement des primes sur l'inégalité des salaires nationaux. Nous utilisons des données administratives couplées employeur-employé sur les salaires de 1990 à 2017 pour douze pays. De plus, nous employons des données sur les salaires provenant des rapports bancaires, de 2009 à 2017, dans 13 pays euro- péens. Nous constatons une forte asymétrie dans les effets des hausses et des ralentis- sements financières sur l'inégalité des salaires, un effet de mitigation de l'augmentation des exigences de capitalisation sur la contribution de la finance à l'inégalité, et un effet de restructuration du plafonnement des primes pour les salaires des financiers, alors qu'aucune des deux mesures n'affecte les niveaux absolus d'inégalité des salaires.iv MaxPo Discussion Paper 21/2 1 Introduction 2 Data Administrative employer–employee linked data World Bank GFDD database European bank reports 3 The contribution of financiers’ earnings to inequality and its asymmetry in upswings and downswings Less finance, less inequality? The asymmetry of the redistribution of earnings through financialization 4 Finance, regulation, and inequality Capital requirements and inequality The bonus cap 5 Conclusion Appendices A1 Data description A2 Supplementary tables and figures Reference
Negative Effect of Smoking on the Performance of the QuantiFERON TB Gold in Tube Test.
False negative and indeterminate Interferon Gamma Release Assay (IGRA) results are a well documented problem. Cigarette smoking is known to increase the risk of tuberculosis (TB) and to impair Interferon-gamma (IFN-γ) responses to antigenic challenge, but the impact of smoking on IGRA performance is not known. The aim of this study was to evaluate the effect of smoking on IGRA performance in TB patients in a low and high TB prevalence setting respectively. Patients with confirmed TB from Denmark (DK, n = 34; 20 smokers) and Tanzania (TZ, n = 172; 23 smokers) were tested with the QuantiFERON-TB Gold In tube (QFT). Median IFN-γ level in smokers and non smokers were compared and smoking was analysed as a risk factor for false negative and indeterminate QFT results. Smokers from both DK and TZ had lower IFN-γ antigen responses (median 0.9 vs. 4.2 IU/ml, p = 0.04 and 0.4 vs. 1.6, p < 0.01), less positive (50 vs. 86%, p = 0.03 and 48 vs. 75%, p < 0.01) and more false negative (45 vs. 0%, p < 0.01 and 26 vs. 11%, p = 0.04) QFT results. In Tanzanian patients, logistic regression analysis adjusted for sex, age, HIV and alcohol consumption showed an association of smoking with false negative (OR 17.1, CI: 3.0-99.1, p < 0.01) and indeterminate QFT results (OR 5.1, CI: 1.2-21.3, p = 0.02). Cigarette smoking was associated with false negative and indeterminate IGRA results in both a high and a low TB endemic setting independent of HIV status
A 24-Week, Randomized, Treat-to-Target Trial Comparing Initiation of Insulin Glargine Once-Daily With Insulin Detemir Twice-Daily in Patients With Type 2 Diabetes Inadequately Controlled on Oral Glucose-Lowering Drugs
OBJECTIVE - To determine whether glargine is noninferior to detemir regarding the percentage of patients reaching A1C <7% without symptomatic hypoglycemia <= 3.1 mmol/l. RESEARCH DESIGN AND METHODS - In this 24-week trial, 973 insulin-naive type 2 diabetic patients on stable oral glucose-lowering drugs with A1CS. 7.0-10.5% were randomized to glargine once daily or detemir twice daily. Insulin doses were systematically titrated. RESULTS - 27.5 and 25.6% of patients reached the primary outcome with glargine and detemir, respectively, demonstrating the noninferiority of glargine. Improvements in A1C were -1.46 +/- 1.09% for glargine and -1.54 +/- 1.11% for detemir (P = 0.149), with similar proportions of patients achieving A1C <7% (P = 0.254) but more detemir-treated patients reaching A1C <6.5% (P = 0.017). Hypoglycemia risk was similar. Weight gain was higher for glargine (difference: 0.77 kg, P <0.001). Glargine doses were lower than detemir doses: 43.5 +/- 129.0 vs. 76.5 +/- 50.5 units/day (P <0.001). CONCLUSIONS - In insulin-naive type 2 diabetic patients, glargine reached similar control as detemir, with more weight gain, but required significantly lower dose
History of chemically and radiatively important atmospheric gases from the Advanced Global Atmospheric Gases Experiment (AGAGE)
We present the organization, instrumentation, datasets, data interpretation,
modeling, and accomplishments of the multinational global atmospheric
measurement program AGAGE (Advanced Global Atmospheric Gases Experiment).
AGAGE is distinguished by its capability to measure globally, at high
frequency, and at multiple sites all the important species in the Montreal
Protocol and all the important non-carbon-dioxide (non-CO<sub>2</sub>) gases
assessed by the Intergovernmental Panel on Climate Change (CO<sub>2</sub> is
also measured at several sites). The scientific objectives of AGAGE are
important in furthering our understanding of global chemical and climatic
phenomena. They are the following: (1) to accurately measure the temporal and
spatial distributions of anthropogenic gases that contribute the majority of
reactive halogen to the stratosphere and/or are strong infrared absorbers
(chlorocarbons, chlorofluorocarbons – CFCs, bromocarbons,
hydrochlorofluorocarbons – HCFCs, hydrofluorocarbons – HFCs and
polyfluorinated compounds (perfluorocarbons – PFCs), nitrogen trifluoride –
NF<sub>3</sub>, sulfuryl fluoride – SO<sub>2</sub>F<sub>2</sub>, and sulfur hexafluoride –
SF<sub>6</sub>) and use these measurements to determine the global rates of
their emission and/or destruction (i.e., lifetimes); (2) to accurately
measure the global distributions and temporal behaviors and determine the
sources and sinks of non-CO<sub>2</sub> biogenic–anthropogenic gases important
to climate change and/or ozone depletion (methane – CH<sub>4</sub>, nitrous
oxide – N<sub>2</sub>O,
carbon monoxide – CO, molecular hydrogen – H<sub>2</sub>, methyl chloride
– CH<sub>3</sub>Cl, and methyl bromide – CH<sub>3</sub>Br); (3) to identify new
long-lived greenhouse and ozone-depleting gases (e.g., SO<sub>2</sub>F<sub>2</sub>,
NF<sub>3</sub>, heavy PFCs (C<sub>4</sub>F<sub>10</sub>, C<sub>5</sub>F<sub>12</sub>,
C<sub>6</sub>F<sub>14</sub>, C<sub>7</sub>F<sub>16</sub>, and C<sub>8</sub>F<sub>18</sub>) and
hydrofluoroolefins (HFOs; e.g., CH<sub>2</sub> = CFCF<sub>3</sub>) have been
identified in AGAGE), initiate the real-time monitoring of these new gases,
and reconstruct their past histories from AGAGE, air archive, and firn air
measurements; (4) to determine the average concentrations and trends of
tropospheric hydroxyl radicals (OH) from the rates of destruction of
atmospheric trichloroethane (CH<sub>3</sub>CCl<sub>3</sub>), HFCs, and HCFCs and estimates
of their emissions; (5) to determine from atmospheric observations and
estimates of their destruction rates the magnitudes and distributions by
region of surface sources and sinks of all measured gases; (6) to provide
accurate data on the global accumulation of many of these trace gases that
are used to test the synoptic-, regional-, and global-scale circulations
predicted by three-dimensional models; and (7) to provide global and regional
measurements of methane, carbon monoxide, and molecular hydrogen and
estimates of hydroxyl levels to test primary atmospheric oxidation pathways
at midlatitudes and the tropics. Network Information and Data Repository:
<a href="http://agage.mit.edu/data" target="_blank">http://agage.mit.edu/data</a> or
<a href="http://cdiac.ess-dive.lbl.gov/ndps/alegage.html" target="_blank">http://cdiac.ess-dive.lbl.gov/ndps/alegage.html</a>
(<a href="https://doi.org/10.3334/CDIAC/atg.db1001" target="_blank">https://doi.org/10.3334/CDIAC/atg.db1001</a>)
The Great Separation: Top Earner Segregation at Work in High-Income Countries
Analyzing linked employer-employee panel administrative databases, we study the evolving isolation of higher earners from other employees in eleven countries: Canada, Czechia, Denmark, France, Germany, Hungary, Japan, Norway, Spain, South Korea, and Sweden. We find in almost all countries a growing workplace isolation of top earners and dramatically declining exposure of top earners to bottom earners. We compare these trends to segregation based on occupational class, education, age, gender, and nativity, finding that the rise in top earner isolation is much more dramatic and general across countries. We find that residential segregation is also growing, although more slowly than segregation at work, with top earners and bottom earners increasingly living in different distinct municipalities. While work and residential segregation are correlated, statistical modeling suggests that the primary causal effect is from work to residential segregation. These findings open up a future research program on the causes and consequences of top earner segregation.En nous appuyant sur des données administratives longitudinales employeur–employés, nous analysons l’évolution de la ségrégation sociale des salariés à hauts salaires dans onze pays: Allemagne, Canada, Corée du Sud, Danemark, Espagne, France, Hongrie, Japon, Norvège, République tchèque et Suède. Nous constatons dans presque tous les pays une forte augmentation de l’entre soi des salariés bien payés sur le lieu de travail et une diminution spectaculaire de leur exposition aux bas salaires. Nous comparons ces tendances à l’évolution de la ségrégation fondée sur la catégorie sociale, l’éducation, l’âge, le sexe et le statut migratoire, et nous constatons que l’augmentation de l’entre soi des hauts salaires est celle qui est la plus prononcée et la plus générale. Nous montrons que la ségrégation résidentielle se développe aussi, bien que plus lentement que la ségrégation au travail, avec les hauts et les bas salaires vivant de plus en plus dans des municipalités distinctes. Ségrégation au travail et ségrégation résidentielle sont corrélées. Mais nos modèles statistiques suggèrent aussi que la principale relation de causalité va de la ségrégation au travail vers la ségrégation résidentielle. Ces résultats ouvrent la voie à un futur programme de recherche sur les causes et les conséquences de la ségrégation des hauts salaires.1 Introduction 2 From ethnic residential segregation to earnings segregation at work 3 Administrative data for estimating exposure measures 4 A strong increase in earnings segregation at work 5 A robust trend 17 French robustness tests 6 A specific trend 7 The link between work and residential segregation 8 Elements for a research program on the causes and consequences of increasing segregation at work The roots of growing earnings segregation at work The consequences of growing earnings segregation at work Appendices A1 Data sources and sample definition A2 Demonstration of the symmetry of relative exposure gRh = hRg A3 Figure construction A4 French robustness checks Supplementary figures and tables Reference
Modelled agroforestry outputs at field and farm scale to support biophysical and environmental assessments
This report, comprising Deliverable 6.17, in the AGFORWARD project brings together examples of modelled outputs at field and farm scale to support the biophysical, social, and environmental assessment of the innovations selected from work-packages 2 to 5.N/
Glycemic control and long-acting insulin analog utilization in patients with type 2 diabetes
Introduction: The objective was to compare glycemic control, insulin utilization, and body weight in patients with type 2 diabetes (T2D) initiated on insulin detemir (IDet) or insulin glargine (IGlar) in a real-life setting in the Netherlands. Methods: Insulin-naïve patients with T2D, starting treatment with IDet or IGlar between January 1, 2004 and June 30, 2008, were selected from the PHARMO data network. Glycemic control (hemoglobin A1c [HbA1c]), target rates (HbA1c <7%), daily insulin dose, and weight gain were analyzed comparing IDet and IGlar for patients with available HbA1c levels both at baseline and at 1-year follow-up. Analysis of all eligible patients (AEP) and a subgroup of patients without treatment changes (WOTC) in the follow-up period were adjusted for patient characteristics, propensity scores, and baseline HbA1c. Results: A total of 127 IDet users and 292 IGlar users were included in the WOTC analyses. The mean HbA1c dropped from 8.4%-8.6% at baseline to 7.4% after 1 year. Patients at HbA1c goal increased from 9% at baseline to 32% for IDet and 11% to 35% for IGlar, which was not significantly different (OR 0.75, 95% CI 0.46, 1.24). Weight gain (n=90) was less among IDet users (+0.4kg) than among IGlar users (+1.1kg), albeit not significant. The AEP analysis (252 IDet
Very Strong Atmospheric Methane Growth in the 4 Years 2014–2017:Implications for the Paris Agreement
Atmospheric methane grew very rapidly in 2014 (12.7 ± 0.5 ppb/year), 2015 (10.1 ± 0.7 ppb/year), 2016 (7.0 ± 0.7 ppb/year), and 2017 (7.7 ± 0.7 ppb/year), at rates not observed since the 1980s. The increase in the methane burden began in 2007, with the mean global mole fraction in remote surface background air rising from about 1,775 ppb in 2006 to 1,850 ppb in 2017. Simultaneously the 13 C/ 12 C isotopic ratio (expressed as δ 13 C CH4 ) has shifted, has shifted, now trending negative for more than a decade. The causes of methane's recent mole fraction increase are therefore either a change in the relative proportions (and totals) of emissions from biogenic and thermogenic and pyrogenic sources, especially in the tropics and subtropics, or a decline in the atmospheric sink of methane, or both. Unfortunately, with limited measurement data sets, it is not currently possible to be more definitive. The climate warming impact of the observed methane increase over the past decade, if continued at >5 ppb/year in the coming decades, is sufficient to challenge the Paris Agreement, which requires sharp cuts in the atmospheric methane burden. However, anthropogenic methane emissions are relatively very large and thus offer attractive targets for rapid reduction, which are essential if the Paris Agreement aims are to be attained
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