128 research outputs found

    LAS CONDICIONES DEL MERCADO DE TRABAJO DE LOS EGRESADOS DE LA LICENCIATURA EN ECONOMÍA DE LA UAEMEX, 2014-2017

    Get PDF
    En México, como en cualquier otro país, las personas que terminan una carrera universitaria buscan insertarse rápidamente en el mundo laboral. Persiguen la idea de que, en cuanto terminen la escuela, las oportunidades que consigan serán bien remuneradas, con buenas prestaciones, sobre todo, piensan en crear una trayectoria profesional a largo plazo. Sin embargo, debido a las condiciones tan precarias que ha presentado el mercado de trabajo en México, durante los últimos años, los egresados se ven obligados a olvidar lo que imaginaron y adaptarse a las condiciones que el mercado laboral les ofrece. Por tanto, esta investigación tiene como objetivo analizar las condiciones del mercado de trabajo de los economistas de la Facultad de Economía de la Universidad Autónoma del Estado de México durante el periodo 2014- 2017, con la finalidad de mostrar las posibilidades y condiciones de empleo de estos profesionistas. Para alcanzar dicho objetivo se realizó una encuesta a los egresados de la Licenciatura de Economía de la UAEMEX, de las generaciones del 2014 al 2017, mediante la plataforma encuestafacil

    Smoking among pregnant women in Cantabria (Spain): trend and determinants of smoking cessation

    Get PDF
    <p>Abstract</p> <p>Background</p> <p>Cantabria (Spain) has one of the highest prevalence of smoking among women of the European Union. The objectives are to assess the trend of smoking during pregnancy in a five-year period and the determinants of smoking cessation during pregnancy in Cantabria.</p> <p>Methods</p> <p>A 1/6 random sample of all women delivering at the reference hospital of the region for the period 1998–2002 was drawn, 1559 women. Information was obtained from personal interview, clinical chart, and prenatal care records. In the analysis relative risks and 95% confidence intervals were estimated. Multivariable analysis was carried out using stepwise logistic regression.</p> <p>Results</p> <p>Smoking prior to pregnancy decreased from 53.6% in 1998 to 39.4% in 2002. A decrease in smoking cessation among women smoking at the beginning of pregnancy was observed, from 37.3% in 1998 to 20.6% in 2002. The mean number of cigarettes/day (cig/d) before pregnancy remained constant, around 16 cig/d, whereas a slight trend to increase over time was seen, from 7.7 to 8.9 cig/d. In univariate analysis two variables favoured significantly smoking cessation, although they were not included in the stepwise logistic regression analysis, a higher education level and to be married. The logistic regression model included five significant predictors (also significant in univariate analysis): intensity of smoking, number of previous pregnancies, partner's smoking status, calendar year of study period (these four variables favoured smoking continuation), and adequate prenatal care (which increased smoking cessation).</p> <p>Conclusion</p> <p>The frequency of smoking among pregnant women is very high in Cantabria. As smoking cessation rate has decreased over time, a change in prenatal care programme on smoking counseling is needed. Several determinants of smoking cessation, such as smoking before pregnancy and partner's smoking, should be also addressed by community programmes.</p

    Diapause as escape strategy to exposure to toxicants: response of Brachionus calyciforus to arsenic

    Get PDF
    Invertebrate organisms commonly respond to environmental fluctuation by entering diapause. Production of diapause in monogonont rotifers involves a previous switch from asexual to partial sexual reproduction. Although zooplankton have been used in ecotoxicological assays, often their true vulnerability to toxicants is underestimated by not incorporating the sexual phase. We experimentally analyzed traits involved in sexual reproduction and diapause in the cyclically parthenogenetic freshwater rotifer, Brachionus calyciflorus, exposed to arsenic, a metalloid naturally found in high concentrations in desert zones, focusing on the effectiveness of diapause as an escape response in the face of an adverse condition. Addition of sublethal concentrations of arsenic modified the pattern of diapause observed in the rotifer: investment in diapause with arsenic addition peaked earlier and higher than in non-toxicant conditions, which suggests that sexual investment could be enhanced in highly stressed environmental conditions by increased responsiveness to stimulation. Nevertheless, eggs produced in large amount with arsenic, were mostly low quality, and healthy-looking eggs had lower hatching success, therefore it is unclear whether this pattern is optimum in an environment with arsenic, or if rather arsenic presence in water bodies disturbs the optimal allocation of offspring entering diapause. We observed high accumulation of arsenic in organisms exposed to constant concentration after several generations, which suggests that arsenic may be accumulated transgenerationally. The sexual phase in rotifers may be more sensitive to environmental conditions than the asexual one, therefore diapause attributes should be considered in ecotoxicological assessment because of its ecological and evolutionary implications on lakes biodiversity

    Multicomponent polysaccharide alginate-based bioinks

    Get PDF
    3D-Bioprinting has seen a rapid expansion in the last few years, with an increasing number of reported bioinks. Alginate is a natural biopolymer that forms hydrogels by ionic cross-linking with calcium ions. Due to its biocompatibility and ease of gelation, it is an ideal ingredient for bioinks. This review focuses on recent advances on bioink formulations based on the combination of alginate with other polysaccharides. In particular, the molecular weight of the alginate and its loading level has an impact on materials performance, as well as the loading of the divalent metal salt and its solubility, which affects the cross-linking of the gel. Alginate is often combined with other polysaccharides that can sigificantly modify the properties of the gel, and can optimise alginate for use in different biological applications. It is also possible to combine alginate with sacrificial polymers, which can temporarily reinforce the 3D printed construct, but then be removed at a later stage. Other additives can be formulated into the gels to enhance performance, including nanomaterials that tune rheological properties, peptides to encourage cell adhesion, or growth factors to direct stem cell differentiation. The ease of formulating multiple components into alginate gels gives them considerable potential for further development. In summary, this review will facilitate the identification of different alginate-polysaccharide bioink formulations and their optimal applications, and help inform the design of second generation bioinks, allowing this relatively simple gel system to achieve more sophisticated control over biological processes

    Prognostic Factors in 77 Curative Chest Wall Resections for Isolated Breast Cancer Recurrence

    Get PDF
    Background: Full-thickness chest wall resection (CWR) is the preferred treatment for breast cancer (BC) patients with extensive isolated locoregional recurrence. It remains a challenge to select patients that will benefit most from this treatment. The aim of this study was to define prognostic factors in patients who undergo CWR with curative intent. Methods: BC patients who underwent a CWR with curative intent for recurrence of disease between 1986 and 2006 were included in this retrospective study. Twenty-two factors were studied in a univariate analyses, and multivariate stepwise Cox regression analyses was performed. Results: Seventy-seven patients were included in this study. The 5-year overall survival was 25%. There was one postoperative death. Univariate analyses showed that three prognostic factors were significantly correlated with OS and disease-free survival: (1) interval between primary treatment and CWR (P = .02 and .004, respectively), (2) chemotherapy for recurrence (P = .05 and .05, respectively), and (3) resection specimen smaller than 150 cm2(P = .03 and .009, respectively). An interval lasting >10 years between primary treatment and CWR remained statistically significantly correlated with better overall survival and disease-free survival after multivariate analyses. Conclusions: CWR is a safe treatment in patients who have isolated extensive BC recurrence. The best survival outcome was seen in patients after a disease-free interval of >10 years. Existing data show that adjuvant radiotherapy and adjuvant hormone therapy for estrogen-positive tumors improves overall survival. Neoadjuvant chemotherapy may be considered in individual patients

    Comparison of seven prognostic tools to identify low-risk pulmonary embolism in patients aged <50 years

    Get PDF
    publishersversionPeer reviewe

    Surgical correction of skeletal deformities in cleft lip and palate

    Get PDF
    The ultrasonic monitoring system described in this work was installed in a copper plate mill which use to have a series of mechanical thickness and width gauging devices. Those devices were taken out of use due to lack of maintenance. The operators empirically learnt to adjust mill controls in order to obtain copper strip within client specifications. This operation lead to a strong dependency on the operator’s skills, along with limitations in the quality of the final product. With the purpose of evaluating the factibility of automizing the process, an ultrasonic thickness and width gauging monitoring system was designed. The knowledge of these two parameters is an essential part in the quality control of the process of fabrication of copper strip
    corecore