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  • 1
    Language: English
    In: Journal of Economic Psychology, 2011, Vol.32(6), pp.980-992
    Description: ► We investigate the relation between personality traits and unemployment duration. ► Conscientiousness and Neuroticism have a strong impact on the unemployment duration. ► Extraversion and Agreeableness do not have significant effects on the unemployment duration. ► Openness eases finding a job only for female unemployed and unemployed with migration background. This paper focuses on the role personality traits play in determining individual unemployment duration. We argue that a worker’s job search intensity is decisively driven by her personality traits, reflected in her propensity to motivate and control herself while searching for a job. Moreover, personality traits, in as far as they can be signaled to a potential employer, may also enhance the probability of receiving and accepting a job offer. For our econometric duration analysis, we use the well-accepted taxonomy “ ” to classify personality traits. Based on individual unemployment data taken from the German Socio-Economic Panel (SOEP) our empirical findings reveal that the personality traits and have a strong impact on the instantaneous probability of finding a job, where the former has a positive effect and the latter has a negative effect. The direction of the effect on the subsequent employment duration is the opposite. We do not find any significant effects of the personality traits and on the duration of unemployment. The personality trait eases finding a job only for female unemployed workers and workers with migration background.
    Keywords: Unemployment Duration ; Personality Traits ; Big Five ; Duration Analysis ; Business ; Psychology ; Economics
    ISSN: 0167-4870
    E-ISSN: 1872-7719
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  • 2
    Language: English
    In: Journal of Hydrology, August 18, 2011, Vol.406(1-2), p.30(9)
    Description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jhydrol.2011.05.045 Byline: Oscar Sucre (a), Andreas Pohlmeier (b), Adrien Miniere (a), Bernhard Blumich (a) Keywords: Nuclear magnetic resonance; Soils; Hydraulic parameters; Richards equation; Relaxation analysis; Diffusion Abstract: a* A low-field NMR sensor has been built to measure partial saturation of soils in a non-invasive way. a* The sensor was deployed in a set-up where a one-step outflow experiment was carried out. a* Partial saturation before, during and after the experiment was acquired for two model soils. a* Hydraulic characteristics of the soils were obtained through inverse analysis. a* NMR signal was analyzed to gain information about the microscopical conditions of the liquid phase. Author Affiliation: (a) ITMC RWTH-Aachen University, Aachen D-52056, Germany (b) ICG-4 Forschungszentrum Julich, Julich D-52425, Germany Article History: Received 2 November 2010; Revised 13 April 2011; Accepted 29 May 2011 Article Note: (miscellaneous) This manuscript was handled by P. Baveye, Editor-in-Chief
    Keywords: Nuclear Magnetic Resonance -- Analysis ; Nuclear Magnetic Resonance -- Measurement ; Sensors -- Analysis ; Sensors -- Measurement ; Soils -- Analysis ; Soils -- Measurement
    ISSN: 0022-1694
    Source: Cengage Learning, Inc.
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  • 3
    In: Geophysical Research Letters, September 2011, Vol.38(17), pp.n/a-n/a
    Description: We present results from solute transport experiments in an evaporating composite porous medium consisting of a cylindrical inner core with coarse sand that was surrounded by a mantle with fine sand. Small volumes of dye and salt tracer were applied at the surface of the fine material of the evaporating column. The pressure head at the bottom boundary was kept constant using a hanging water table ensuring liquid phase continuity to top surface in both fine and coarse material, whereby the latter was hydraulically less conductive at these pressure conditions. Contrary to the expectation that solute accumulation at an evaporating surface is proportional to local cumulative evaporation, high concentration spots developed at the surface of the coarse material, for which IR surface temperature measurements did not indicate higher evaporation fluxes. 3D unsaturated flow and transport simulations and a second tracer experiment monitored with magnetic resonance imaging (MRI) demonstrated that preferential upward water flux in the fine sand deeper in the column and near‐surface lateral water flow from the fine into the coarse sand in combination with a downward diffusive flux are responsible for the local solute accumulation. We propose that at the wet regions of a soil surface, solute accumulation is largely decoupled from local evaporation fluxes and strongly governed by relative differences of the hydraulic conductivities. The possible formation of high solute concentration spots at the surface of coarser regions usually representing preferential flow pathways during strong precipitation may have an accelerating effect on the leaching of solutes. Under stage‐1 evaporation solutes accumulate in zones of lowest hydraulic head Considering cycles of infiltration and evaporation this leads to mass flux loops The solute redistribution has important consequences for the leaching of solutes
    Keywords: Mri ; Evaporation ; Preferential Flow ; Solute Transport ; Unsaturated Zone ; Vadose Zone
    ISSN: 0094-8276
    E-ISSN: 1944-8007
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  • 4
    Language: English
    In: Journal of Hydrology, 2011, Vol.406(1), pp.30-38
    Description: ► A low-field NMR sensor has been built to measure partial saturation of soils in a non-invasive way. ► The sensor was deployed in a set-up where a one-step outflow experiment was carried out. ► Partial saturation before, during and after the experiment was acquired for two model soils. ► Hydraulic characteristics of the soils were obtained through inverse analysis. ► NMR signal was analyzed to gain information about the microscopical conditions of the liquid phase. Knowing the exact hydraulic parameters of soils is very important for improving water management in agriculture and for the refinement of climate models. Up to now, however, the investigation of such parameters has required applying two techniques simultaneously which is time-consuming and invasive. Thus, the objective of this current study is to present only one technique, i.e., a new non-invasive method to measure hydraulic parameters of model soils by using low-field nuclear magnetic resonance (NMR). Hereby, two model clay or sandy soils were respectively filled in a 2 m-long acetate column having an integrated PVC tube. After the soils were completely saturated with water, a low-field NMR sensor was moved up and down in the PVC tube to quantitatively measure along the whole column the initial water content of each soil sample. Thereafter, both columns were allowed to drain. Meanwhile, the NMR sensor was set at a certain depth to measure the water content of that soil slice. Once the hydraulic equilibrium was reached in each of the two columns, a final moisture profile was taken along the whole column. Three curves were subsequently generated accordingly: (1) the initial moisture profile, (2) the evolution curve of the moisture depletion at that particular depth, and (3) the final moisture profile. All three curves were then inverse analyzed using a MATLAB code over numerical data produced with the van Genuchten–Mualem model. Hereby, a set of values ( , , and ) was found for the hydraulic parameters for the soils under research. Additionally, the complete decaying NMR signal could be analyzed through Inverse Laplace Transformation and averaged on the 1/ space. Through measurement of the decay in pure water, the effect on the relaxation caused by the sample could be estimated from the obtained spectra. The migration of the sample-related average 〈1/ 〉 with decreasing saturation speaks for a enhancement of the surface relaxation as the soil dries, in concordance with results found by other authors. In conclusion, this low-field mobile NMR technique has proven itself to be a fast and a non-invasive mean to investigate the hydraulic behavior of soils and to explore microscopical aspect of the water retained in them. In the future, the sensor should allow easy soil moisture measurements .
    Keywords: Nuclear Magnetic Resonance ; Soils ; Hydraulic Parameters ; Richards Equation ; Relaxation Analysis ; Diffusion ; Geography
    ISSN: 0022-1694
    E-ISSN: 1879-2707
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  • 5
    Language: English
    In: Gut, 21 September 2015, Vol.64(9), p.1444
    Description: Fibroblast growth factors (Fgfs) are key orchestrators of development, and a role of Fgfs in tissue repair is emerging. Here we studied the consequences of inducible loss of Fgf receptor (Fgfr) 4, the major Fgf receptor (Fgfr) on hepatocytes, alone or in combination with Fgfr1 and Fgfr2, for liver regeneration after PH.
    Keywords: Liver Regeneration ; Growth Factors ; Signaling
    ISSN: 0017-5749
    ISSN: 00175749
    E-ISSN: 1468-3288
    E-ISSN: 14683288
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  • 6
    In: Obstetrics & Gynecology, 2014, Vol.124(3), pp.579-584
    Description: OBJECTIVE:: To evaluate the nutritional habits and weight management strategies of women trying to conceive as compared with women not trying to conceive. METHODS:: This was a cross-sectional survey of health behaviors including nutritional habits and weight management strategies of women aged 16–40 years who were low income, racially diverse, (n=1,711), and attending reproductive health clinics. Multivariable logistic regression analyses were performed to examine the association between pregnancy intention and various health behaviors after adjusting for demographic variables, gravidity, and obesity status. RESULTS:: A total of 8.9% (n=153) of the participants stated they were trying to get pregnant. Women trying to conceive were more likely than those not trying to have participated in a number of unhealthy weight loss practices in the past year. These included taking diet pills, supplements, or herbs (13.5% compared with 8.8%; adjusted odds ratio [OR] 1.97, 95% confidence interval [CI] 1.11–3.49), using laxatives or diuretics or inducing vomiting (7.7% compared with 3.0%; adjusted OR 2.70, CI 1.23–5.91), and fasting for 24 hours (10.7% compared with 5.5%; adjusted OR 2.15, CI 1.03–4.51). There were no significant differences between the two groups in amount of exercise, current smoking status, or current alcohol consumption Furthermore, fruit, green salad and other vegetables, and intake of soda and fast food were unrelated to pregnancy intention. CONCLUSION:: This study highlights that women trying to conceive are more likely to participate in unhealthy and potentially dangerous weight loss practices than women not trying to conceive. LEVEL OF EVIDENCE:: II
    Keywords: Medicine;
    ISSN: 0029-7844
    E-ISSN: 1873233X
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  • 7
    Language: English
    In: Oecologia, 2015, Vol.178(4), pp.951-965
    Description: Hatching early in the season is often assumed to elevate fitness, particularly in cannibalistic fish in which size-dependent predation mortality is a major selective force. While the importance of the thermal environment for the growth of fish is undisputed, the relevance of maternal effects for offspring growth in the wild is largely unknown. Otoliths of 366 age-0 pike ( Esox lucius L.) were sampled in a natural lake over three seasons. All offspring were assigned to more than 330 potential mothers using 16 informative microsatellites. We found temperature and past maternal environment (as represented by juvenile growth rate), but not female total length, to jointly contribute to explain within- and among-season size variation in juvenile pike. While there was no statistical evidence for maternal effects on offspring growth rate, fast female juvenile growth positively correlated with the offspring length in early summer. One mechanism could be related to fast-growing females spawning somewhat earlier in the season. However, the more likely mechanism emerging in our study was that fast-growing females could have been in better condition prior to spawning, in turn possibly producing higher numbers of high-quality eggs. Our study is among the few to reveal carry-over effects related to past maternal environments on offspring performance in a naturally reproducing fish stock. At the same time, our study underscores recent arguments that size-dependent maternal effects may not be expressed in the wild and that early hatching does not generally produce size advantages in light of stochastically varying temperature conditions.
    Keywords: Growing degree-day ; Hatch date ; Juvenile growth ; Maternal effects ; Northern pike
    ISSN: 0029-8549
    E-ISSN: 1432-1939
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  • 8
    Language: English
    In: Fertility and Sterility, September 2013, Vol.100(3), pp.S350-S350
    Keywords: Medicine
    ISSN: 0015-0282
    E-ISSN: 1556-5653
    Source: ScienceDirect Journals (Elsevier)
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  • 9
    Language: English
    In: Fertility and Sterility, September 2013, Vol.100(3), pp.S337-S337
    Keywords: Medicine
    ISSN: 0015-0282
    E-ISSN: 1556-5653
    Source: ScienceDirect Journals (Elsevier)
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  • 10
    Language: English
    In: Journal of Community Health, 2015, Vol.40(3), pp.542-548
    Description: To examine influence of nutrition knowledge on weight loss behaviors among low-income reproductive-age women. We conducted a self-administered cross-sectional survey of health behaviors including socio-demographic characteristics, nutrition knowledge, and weight loss behaviors of 16–40 year old women (n = 1,057) attending reproductive health clinics located in Southeast Texas between July 2010 and February 2011. Multiple linear regression and multivariable logistic regression analyses were performed to identify correlates of nutrition knowledge and examine its association with various weight loss behaviors after adjusting for confounders. The mean nutrition knowledge score was low (5.7 ± 2.8) (possible score 0–15). It was significantly lower among African American women than whites ( P  〈 .001). Obese women ( P  = .002), women with high school enrollment/diploma ( P  = .030), and some college hours/degree ( P  〈 .001) had higher nutrition knowledge scores than their counterparts. The higher score of nutrition knowledge was significantly associated with higher odds of engaging in healthy weight loss behaviors: eating less food [odds ratio (OR) 1.12, 95 % confidence interval (CI) 1.06–1.18], switching to foods with fewer calories (OR 1.10, 95 % CI 1.04–1.16), exercising (OR 1.10, 95 % CI 1.04–1.16), eating more fruits/vegetables/salads (OR 1.11, 95 % CI 1.06–1.17) and less sugar/candy/sweets (OR 1.09, 95 % CI 1.04–1.15). However, it was not associated with unhealthy weight loss behaviors, such as using laxatives/diuretics or inducing vomiting. Nutrition knowledge is low among reproductive-age women. An increase in nutrition knowledge may promote healthy weight loss behaviors.
    Keywords: Reproductive-age women ; Nutrition knowledge ; Weight loss behavior ; Healthy weight loss behavior ; Unhealthy weight loss behavior
    ISSN: 0094-5145
    E-ISSN: 1573-3610
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