Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/41443
Title: Extended exposure to a discriminated, limited-hold temporal schedule does not produce stimulus control
Author: Gonzalez-Lopez, L.
Morales-Romero, J.
Vazquez-Villegas, M.L.
Villa-Manzano, R.
Rocha-Munoz, A.D.
Barragan-Enriquez, A.
Celis, A.
Cabrera-Pivaral, C.E.
Gamez-Nava, J.I.
Issue Date: 2013
Abstract: To evaluate impact of working days lost and factors for developing sick leave episodes in Mexicans workers with rheumatoid arthritis (RA). A prospective cohort of 123 patients with RA was followed for 1 year. Factors evaluated for sick leave episodes included: demographics, job characteristics, comorbidity, depressive symptoms, and clinical/therapeutic variables. Rates of sick leave episodes, working days lost, and permanent work disability (PWD) were identified. Statistical analysis included Cox regression models estimating hazard risks (HR) and their 95 % confidence intervals (95% CI). Cumulative time of follow-up for the cohort was 43,380 days, 24 % of workers had at least one episode of sick leave, with a mean of working days lost per patient-year of 18.36; 4.1 % developed PWD. Development of sick leave in the Kaplan-Meier analysis was associated with: age ?40 years (p = 0.04), having a couple (p = 0.04), performing manual work (p = 0.03), suffering depressive symptoms (p = 0.04), limitations in functioning (p = 0.01), and poor global functional status ? III (p = 0.01). Cox regression models identified HAQ-Di ? 0.6 as the stronger predictor for sick leave (HR = 4.04, 95 % CI 1.41-11.58, p = 0.009) followed by age (HR = 1.05, 95 % CI 1.01-1.11, p = 0.04), ?4 risk factors had a HR to 9.4 (95 % CI: 2.1-42.7) for sick leave. In this prospective cohort of Mexican workers with RA, we identified several factors associated with sick leave episodes and working days lost that should be potentially addressed by a multidisciplinary approach, being required to revaluate these strategies with the aim of increasing the work permanence of these patients. " 2012 Springer-Verlag.",,,,,,"10.1007/s00296-012-2395-3",,,"http://hdl.handle.net/20.500.12104/41443","http://www.scopus.com/inward/record.url?eid=2-s2.0-84879690272&partnerID=40&md5=39061fb7f502c354ab0acbd06482f3cc",,,,,,"3",,"Rheumatology International",,"561
569",,"33",,"Scopus
WOS",,,,,,"Prospective cohort study; Rheumatoid arthritis; Risk factors; Sick leave episodes; Work disability",,,,,,"Factors influencing sick leave episodes in Mexican workers with rheumatoid arthritis and its impact on working days lost",,"Article" "44991","123456789/35008",,"Berman, G.P., Theoretical Division and CNLS, Los Alamos National Laboratory, Los Alamos, NM 87545, United States; Doolen, G.D., Theoretical Division and CNLS, Los Alamos National Laboratory, Los Alamos, NM 87545, United States; López, G.V., Departamento de Física, Universidad de Guadalajara, Corregidora 500, SR 44420, Guadalajara, Jalisco, Mexico; Tsifrinovich, V.I., IDS Department, Polytechnic University, Six Metrotech Center, Brooklyn, NY 11201, United States",,"Berman, G.P.
Doolen, G.D.
Lopez, G.V.
Tsifrinovich, V.I.",,"2000",,"We simulate Shor's algorithm using the Ising spin quantum computer. The influence of nonresonant effects is analyzed in detail. It is shown that the method developed earlier in our papers successfully suppresses nonresonant effects even for relatively large values of the Rabi frequency.",,,,,,,,,"http://hdl.handle.net/20.500.12104/43212","http://www.scopus.com/inward/record.url?eid=2-s2.0-0347108473&partnerID=40&md5=bdc47cab1151d07c3b926b5542e6ce3e",,,,,,"4",,"Physical Review A - Atomic, Molecular, and Optical Physics",,"423071
423077",,"61",,"Scopus",,,,,,,,,,,,"Nonresonant effects in the implementation of the quantum Shor algorithm",,"Article" "43207","123456789/35008",,"Hernández-Zendejas, G., Division of Plastic, Reconstr. and Maxillofacial Surgery, Univ. of Guadalajara Medical College, Guadalajara, Jalisco, Mexico; Guerrerosantos, J., Division of Plastic, Reconstr. and Maxillofacial Surgery, Univ. of Guadalajara Medical College, Guadalajara, Jalisco, Mexico",,"Hernandez-Zendejas, G.
Guerrerosantos, J.",,"1998",,"In this report, we described a strip composite sideburn graft, which was successfully used in seven patients for either eyelash reconstruction or eyelash aesthetic augmentation. The donor site provides enough hair-bearing skin for the repair of large eyelash defects or its liberal use in eyelash aesthetic augmentation, and the resulting scar is easily concealed. The aesthetic result obtained in all patients was highly satisfactory.",,,,,,"10.1097/00006534-199806000-00032",,,"http://hdl.handle.net/20.500.12104/41428","http://www.scopus.com/inward/record.url?eid=2-s2.0-0344074509&partnerID=40&md5=8a884d44f5d8b80d3c29d535830dcd4b",,,,,,"7",,"Plastic and Reconstructive Surgery",,"1978
1980",,"101",,"Scopus
WOS",,,,,,,,,,,,"Eyelash reconstruction and aesthetic augmentation with strip composite sideburn graft",,"Article" "43198","123456789/35008",,"Ribes, E., Centro De Estudios E Investigaciones En Comportamiento, University of Guadalajara, 12 de diciembre 204 (Col.Chapalita), Zapopan, Jalisco 45040, Mexico; Torres, C., Centro De Estudios E Investigaciones En Comportamiento, University of Guadalajara, 12 de diciembre 204 (Col.Chapalita), Zapopan, Jalisco 45040, Mexico; Mayoral, A., Centro De Estudios E Investigaciones En Comportamiento, University of Guadalajara, 12 de diciembre 204 (Col.Chapalita), Zapopan, Jalisco 45040, Mexico",,"Ribes, E.
Torres, C.
Mayoral, A.",,"2002",,"Four rats were exposed to two different stimuli (either lights or tones), each stimulus being correlated with independent probabilities of water delivery in a temporally defined schedule. The schedule consisted of a 60 s T cycle with 30 s tD and t- successive subcycles; tD was correlated with a probability of water delivery of 1.0 and t- was correlated with a probability of water delivery of 0.0. The schedule was maintained during 180 sessions and extended for 25 extra sessions omitting the stimulus in t-. The four rats showed low frequencies of responding, response frequency being slightly higher in t- than in tD. The percentage of lost reinforcers was independent of response frequency. The rats which lost less reinforcers were those which obtained more water deliveries during the first 15 cycles of each session. These results show that stimulus control does not develop in limited-hold temporal schedules, and that response-reinforcer effectiveness may depend on the initial contact with reinforcers in the first cycles of the session. " 2002 Elsevier Science B.V. All rights reserved.
URI: http://hdl.handle.net/20.500.12104/41419
http://www.scopus.com/inward/record.url?eid=2-s2.0-0037201637&partnerID=40&md5=d1d7a9272524ca3f28394590cfe85b2f
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