908 resultados para population studies
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Using a sample of 339 university graduates from the University of Alicante (Spain) three years after completion of their studies, we studied the relationships between general intelligence (GI), personality traits, emotional intelligence (EI), academic performance, and occupational attainment and compared the results of conventional regression analysis with the results obtained from applying regression mixture models. The results reveal the influence of unobserved population heterogeneity (latent class) on the relationship between predictors and criteria and the improvement in the prediction obtained from applying regression mixture models compared to applying a conventional regression model.
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Population synthesis studies constitute a powerful method to reconstruct the birth distribution of periods and magnetic fields of the pulsar population. When this method is applied to populations in different wavelengths, it can break the degeneracy in the inferred properties of initial distributions that arises from single-band studies. In this context, we extend previous works to include X-ray thermal emitting pulsars within the same evolutionary model as radio-pulsars. We find that the cumulative distribution of the number of X-ray pulsars can be well reproduced by several models that, simultaneously, reproduce the characteristics of the radio-pulsar distribution. However, even considering the most favourable magneto-thermal evolution models with fast field decay, lognormal distributions of the initial magnetic field overpredict the number of visible sources with periods longer than 12 s. We then show that the problem can be solved with different distributions of magnetic field, such as a truncated lognormal distribution, or a binormal distribution with two distinct populations. We use the observational lack of isolated neutron stars (NSs) with spin periods P > 12 s to establish an upper limit to the fraction of magnetars born with B > 1015 G (less than 1 per cent). As future detections keep increasing the magnetar and high-B pulsar statistics, our approach can be used to establish a severe constraint on the maximum magnetic field at birth of NSs.
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"The series of monographs on 'The General Pattern of Local Government in the Penjerdel Region' ... were made possible by the mutual effort ... of Penjerdel ... the Pennsylvania Economy League ... the University of Delaware; and Rutgers ..."
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no. 5. Report ... on what are the educational requirements, the number issued, and what institutions prepare applicants for teachers certificates? Does the supply equal the demand?--no. 6. How does Nebraska compare with neighboring states in amounts appropriated for higher education? Amounts expended for higher education? Ratios of college students to population and percent of high school graduates entering college?--no. 7 [pt. 1] Methods of control of state higher education. [pt. 2] Duplication among Nebraska's state-supported higher educational institutions.--no. 8. What does the state do to equalize educational opportunity among the counties, towns and rural districts? Is the plan of district organization economical?
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Tozer, H.F. Geography.--Tristram, H.B. Fauna.--Tristram, H.B. Flora.--History: 1. Hicks,R.D. Chronology. 2. Chronological Tables.--Jebb, Sir R. Literature.--Philosophy: 1. Jackson, H. Schools to Aristotle. 2. Hicks, R.D. Later Schools.--Gow, J. Science.--Art: 1. Penrose, F.C. Architecture. 2. Waldstein, C. Prehistoric art. 3. Waldstein, C. Sculpture. 4. Earp, F.R. Painting. 5. Smith, A.H. Vase Painting. 6. Smith, A.H. Terracottas. 7. Ridgeway, W. Engraved gems. 8. Hind, R.D. Archer--Music.--Gardner, E.A. Mythology and religion.--Public antiquities: 1. Whibley, L. Constitutions. 2. Wyse, W. Law. 3. Wyse, W. Finance. 4. Mayor, R.J.G. Population. 5. Mayor, R.J.G. Slaves and slavery. 6. Edwards, H.J. Colonies. 7. Edwards, H.J. Commerce and industry. 8. Ridgeway, W. Measures and weights. 9. Ridgeway, W. Money. 10. Oman, C.W.C. War. 11. Cook, A.B. Ships. 12. Gow, J. The calendar.--Private antiquities: 1. Gow, J. A table of the relationships of a man. 2. Harrison, Miss J. Ritual of birth, marriage, and death. 3. Wilkins, A.S. Education. 4. James, M.R. Books and writing. 5. Cornish, F.W. The position of women. 6. Evans, Lady Dress. 7. Gardner, E.A. Daily life, its surroundings, employments and amusements. 8. Gardner, E.A. House and furniture. 9. Allbutt, T.C. Medicine.--Criticism and Interpretation: 1. Neil, R.A. Dialects. 2. Roberts, E.S. Epigraphy. 3. Harris, J.R. Palaeography. 4. Jebb, Sir R. Textual criticism. 5. Verrall, A.W. Metre. 6. Sandys, J.E. History of scholarship.--Indices.
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Contains also studies in governmental accounting; also (in 1905 and 1907) statistics of city departments and public improvements.
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Thesis (Ph.D.)--University of Washington, 2016-06
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Hydroxychloroquine (HCQ) is an antimalarial drug that is also used as a second-line treatment of rheumatoid arthritis (RA). Clinically, the use of HCQ is characterized by a long delay in the onset of action, and withdrawal of treatment is often a result of inefficacy rather than from toxicity. The slow onset of action can be attributed to the pharmacokinetics (PK) of HCQ, and wide interpatient variability is evident. Tentative relationships between concentration and effect have been made, but to date, no population PK model has been developed for HCQ. This study aimed to develop a population PK model including an estimation of the oral bioavailability of HCQ. In addition, the effects of the coadministration of methotrexate on the PK of HCQ were examined. Hydroxychloroquine blood concentration data were combined from previous pharmacokinetic studies in patients with rheumatoid arthritis. A total of 123 patients were studied, giving the data cohort from four previously published studies. Two groups of patients were included: 74 received hydroxychloroquine (HCQ) alone, and 49 received HCQ and methotrexate (MTX). All data analyses were carried out using the NONMEM program. A one-compartment PK model was supported, rather than a three-compartment model as previously published, probably because of the clustering of concentrations taken at the end of a dosing interval. The population estimate of bioavailability of 0.75 (0.07), n = 9, was consistent with literature values. The parameter values from the final model were: (Cl) over bar = 9.9 +/- 0.4 L/h, (V) over bar 605 +/- 91 L, (k(d)) over bar = 0.77 +/- 0.22 hours(-1), (t(tag)) over bar = 0.44 +/- 0.02 hours. Clearance was not affected by the presence of MTX, and, hence, steady-state drug concentrations and maintenance dosage requirements were similar. A population PK model was successfully developed for HCQ.