1,165 research outputs found
Yes, we are Latino women but very proud to have serve[d] our country : Ethnic Mexican women\u27s contributions to World War II
This theses highlights ethnic Mexican women from Texas who contributed to World War II through the military, wartime employment industries, and home front unconventional efforts. By utilizing twenty-eight oral histories, collected from the VOCES Oral History Project Archive at the Benson Latin American Collection, ten Texas newspapers, and military documents, this research presents the wartime efforts of ethnic Mexican women. Each chapter traces the women’s economic, racial, and gendered struggles in their private and social spaces before the war to better appreciate their participation during the war. An examination of the experiences of ethnic Mexican women during World War II analyzes the agency they enacted to accept, resist, and negotiate their positions within a patriarchal structure in their social and private spaces. World War II provided a moment for ethnic Mexican women to break from strict gender roles, challenge racial barriers, and gain economic autonomy
Transportation planning and development in Bogota: Balancing the urgent and the strategic
Planning priorities in Bogota have historically focused on demographic, economic, and urban development needs with partial consideration of municipalities in its vicinity. Bogota is a frequent reference in local and international urban research from the optics of transport, urban planning, and urban development. Bogota shows important inequalities in access to housing throughout the territory. Bogota’s concentration of economic activities in the expanded center of the city is well-documented in the literature and has both positive and negative consequences. The functional configuration of Bogota has determined the main infrastructure developments for urban mobility in the city. Vision Zero in Bogota has been adopted as a cross-cutting issue with a shared responsibility of citizens and the state. Bogota’s history of urban development and transport policy continues to be an interesting case for analysis and reference in the planning of large-scale urban settings
Localization and extinction of bacterial populations under inhomogeneous growth conditions
The transition from localized to systemic spreading of bacteria, viruses and
other agents is a fundamental problem that spans medicine, ecology, biology and
agriculture science. We have conducted experiments and simulations in a simple
one-dimensional system to determine the spreading of bacterial populations that
occurs for an inhomogeneous environment under the influence of external
convection. Our system consists of a long channel with growth inhibited by
uniform UV illumination except in a small ``oasis'', which is shielded from the
UV light. To mimic blood flow or other flow past a localized infection, the
oasis is moved with a constant velocity through the UV-illuminated ``desert''.
The experiments are modeled with a convective reaction-diffusion equation. In
both the experiment and model, localized or extinct populations are found to
develop, depending on conditions, from an initially localized population. The
model also yields states where the population grows everywhere. Further, the
model reveals that the transitions between localized, extended, and extinct
states are continuous and non-hysteretic. However, it does not capture the
oscillations of the localized population that are observed in the experiment.Comment: 11 pages, 7 figure
Ride-hailing and (dis)Advantage: Perspectives from Users and Non-users
The introduction of ride-hailing in cities of Latin America and the Caribbean (LAC) remains a relatively new topic in regional research and a contentious issue in local policy and practice. Evidence regarding users and how do they differ from non-users is scarce, and there is little documented evidence about how user preferences and perceptions may influence the uptake of ride-hailing. This paper uses primary data from a survey collected from users and non-users of ride-hailing in Bogotá during 2019 to develop a Latent Class Analysis Model (LCA) to identify clusters of users and non-users of ride-hailing. The paper builds on results from the LCA to reflect on conditions of advantage and disadvantage that may make ride-hailing attractive and beneficial for particular social groups. The paper identifies four unique clusters: Carless middle-income ride-hailing users, Disadvantaged non-users, Young middle-class non-users, and Advantaged ride-hailing users. The research uses data on such perceptions to draw insights that may inform commercial and policy decisions. Findings suggest that issues such as the perception of legality in ride-hailing and aversion to crime play a significant role in the choice of such a mode in the context of Bogotá, particularly among socially and transport advantaged users
Measuring total social income of a stone pine afforestation in Huelva (Spain)
We apply an experimental ecosystem accounting approach aimed at estimating the contribution of ecosystem services to total social income accrued from a Stone pine (Pinus pinea L.) forest as the result of afforestation in Huelva Province, Spain. The study encompasses private market products such as timber, pine cones, and forest conservation intermediate services; and non-market final services that include private amenities and public services such as landscape, free-access recreation and carbon sequestration services. We show how the total income of each single product is distributed amongst the factorial rewards to labor, and environmental and manufactured assets. Private products account for 46% of the average total income that the Stone pine forest would yield over its rotation, while public services comprise the remaining 54%. Our results also suggest that the production of public non-market services would offset the government compensation payments to support Stone pine afforestation and management. Finally, the results show that, on average, 7% of the estimated total income would be captured by the current System of National Accounts for forestry if applied to our case study (including only the net value added from timber and pine cone production and from plantation investment) and that 14% of this income would be dislocated into the government institutional accounts
Crop sequence study of fusarium head blight on wheat (Triticum aestivum) and barley (Hordeum vulgare) in the Canadian prairies
Non-Peer ReviewedFusarium head blight (FHB) has become a major limitation to cereal crop production across much of the prairies in recent years, particularly for bread and durum wheat growers, and the disease is also impacting barley growers. Managing this disease with fungicides and resistant cultivars is not sufficient. A third important strategy of FHB management is the selection and inclusion of non-host crops in the rotation. In this study, our objective is to determine the impact of preceding crop choices on FHB of wheat (spring and durum) and barley, at select locations across western Canada. Crop choices will include common cultivated crops (cereals, pulses and oilseeds), as well as corn, which is increasingly popular in western Canada, particularly in Manitoba at present, and is expected to increase rapidly in Saskatchewan and Alberta over the next decade. The study will document the FHB severity and Fusarium spp., yield and quality (amount of fusarium damaged kernels, toxin content, TKW, TW, protein content and other important grading factors depending on the crop) of the affected cereal crops in each crop sequence. From this information, cereal growers will have information on which to base crop sequence decisions that minimize FHB in cereals in western Canada
idmTPreg: Regression Model for Progressive Illness Death Data
The progressive illness-death model is frequently used in medical applications. For example, the model may be used to describe the disease process in cancer studies. We have developed a new R package called idmTPreg to estimate regression coefficients in datasets that can be described by the progressive illness-death model. The motivation for the development of the package is a recent contribution that enables the estimation of possibly time-varying covariate effects on the transition probabilities for a progressive illness-death data. The main feature of the package is that it befits both non-Markov and Markov progressive illness-death data. The package implements the introduced estimators obtained using a direct binomial regression approach. Also, variance estimates and confidence bands are implemented in the package. This article presents guidelines for the use of the package.BERC 2014-2017
SEV-2013-0323
MTM2016-76969-P
FP7/2011: Marie Curie Initial Training Network MEDIASRE
A Monocentric Analysis of Implantable Ports in Cancer Treatment: Five-Year Efficacy and Safety Evaluation
Background: Daily clinical practice requires repeated and prolonged venous access for delivering chemotherapy, antibiotics, antivirals, parenteral nutrition, or blood transfusions. This study aimed to investigate the performance and the safety of totally implantable vascular access devices (TIVADs) over a 5-year follow-up period through a standardized well-trained surgical technique and patient management under local anesthesia. Methods: In a retrospective, observational, and monocentric study, 70 patients receiving POLYSITE® TIVADs for chemotherapy were included. The safety endpoints focused on the rate of perioperative, short-term, and long-term complications. The performance endpoints included vein identification for device insertion and procedural success rate. Results: The study demonstrated no perioperative or short-term complications related to the TIVADs. One (1.4%) complication related to device manipulation was identified as catheter flipping, which led to catheter adjustment 56 days post-placement. Moreover, one (1.4%) infection due to usage conditions was observed, leading to TIVAD removal 3 years and 4 months post-surgery. Catheter placement occurred in cephalic veins (71.4%), subclavian veins (20%), and internal jugular veins (8.6%). The procedural success rate was 100%. Overall, the implantable ports typically remained in place for an average of 22.4 months. Conclusions: This study confirmed the TIVADs’ performance and safety, underscored by low complication rates compared to published data, thereby emphasizing its potential and compelling significance for enhancing routine clinical practice using a standardized well-trained surgical technique and patient management
Nuevos resultados de la revisión taxonómica de los géneros Palicourea y Psychotria (Rubiaceae, Psychotrieae) en Cuba
The authors carried out a taxonomic study and revised and identified about 7,000 herbarium sheets of the genera Palicourea and Psychotria preserved in the collections of the Academy of Sciences of Cuba (HAC) and of the National Botanical Garden of Cuba (HAJB) with the purpose to complete the manuscript in preparation for the volume of the Rubiaceae Family of the Flora of Cuba. The results are as follows: Recognized 20 species of the genus Palicourea and 59 species of Psychotria. Revalidated 4 species new to the Flora of Cuba: Palicourea brachystigma Urb., Psychotria brevinodis Urb., Psychotria earlei Urb. and Psychotria tubulocubensis Govaerts. Established 3 new combinations: Palicourea ekmanii (Urb.) Borhidi et Oviedo, Palicourea odorata (Wr. ex Griseb.) Borhidi et Oviedo and Psychotria costivenia subsp. clementis (Britt.) Borhidi et Oviedo. Recognized and described 9 species and 1 subspecies of the genus Psychotria new to science: P. bissei Borhidi et Oviedo, P. brittonii Oviedo et Borhidi, P. ermitensis Borhidi et Oviedo, P. cromophila Oviedo et Borhidi, P. oblongicarpa Borhidi et Oviedo, P. pulchrinervis Borhidi et Oviedo, P. reflexiloba Borhidi et Oviedo, Psychotria reflexipes Borhidi et Oviedo, Psychotria rubens Borhidi et Oviedo, Psychotria costivenia subsp. wrightiana Borhidi et Oviedo. Following the concept of C. W. Hamilton (1989) recognised 10 species groups, 5 of them identical with the described ones from Mexico and Central America: the carthagenensis group with 4 species, the costivenia group with 10 species, the graciliflora group with 9 species, the nervosa group with 3 and the tenuifolia group with 1 species. Furthermore, the authors established 5 new groups, characteristic for the Greater Antillean flora: cathetoneura group with 4 species, the evenia group with 7 species, the lasiophthalma group with 4 species, the revoluta group with 10 species and the shaferi group with 9 species
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