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Search Results: 1 - 10 of 32104 matches for " Ana; Precerutti "
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Profilaxis de enfermedad tromboembólica venosa en pacientes adultos sometidos a cirugía: Estudio multicéntrico en instituciones públicas y privadas de Argentina
Sch?nfeld,Daniel; Ortiz,Cristina; Vanoni,Susana; López,Ana; Precerutti,Juan; Penizzotto,Miguel; Barinboim,Enrique; Abdala,Javier; Gaitán,Cristina; Morales,Rosana; Carlés,Daniel;
Revista americana de medicina respiratoria , 2012,
Abstract: introduction: the actual incidence of venous thromboembolism (vte) is difficult to quantify. more cases are asymptomatic and generally are not diagnosed, but it is known that pulmonary thromboembolism (pte) is the third cause of death at hospitals. the lack of diagnosis of this pathology impairs the reliability of its incidence estimates and there are few studies which have assessed the effectiveness of preventive measures. objectives: the main objective was to determine the proportion of high and medium risk surgical patients in which preventive measures against vte are prescribed in several medical institutions of the country. secondary objectives were to assess the quality of the prescribed preventive measures and to correlate the type of preventive measure with the professional background of the medical doctor who made the prescription, the level of complexity of the institution as indicated by the number of beds and the kind of institution, whether public or private. material and methods: the study included the review of 258 clinical records of surgical patients with medium and high risk for vte in 9 hospitals of the country from 25 to 30 july 2011. results: the prescribed preventive measures were adequate in 46.51% of patients who met the requirements for their prescription. there were significant differences between public and private institutions. private institutions prescribed these measures more often in patients with medium risk. cardiologists were less likely and institutions with a larger number of beds were more likely to prescribe the preventive measures. conclusions: the low compliance with guidelines on prevention of vte in this study shows that there is a need to implement strategies to promote the use of simple and cost-effective preventive measure.
Research of Logistics and Regional Economic Growth  [PDF]
Ana Wang
iBusiness (IB) , 2010, DOI: 10.4236/ib.2010.24052
Abstract: This paper used Granger causality test method to analyze regional GDP growth in the domestic and regional freight turnover. And this paper used logistic model to analyze the reasons that regional logistics promote Anhui economic growth. Through the analysis that find Anhui economic growth on the leading role of regional logistics is not obvious. This showed that the role of regional logistics in promoting economic growth in Anhui Province has not been fully played out, which was not showing a good momentum of development co-ordination. So logistics will play an active role in the economy of Anhui province in the future.
Applications of Mogulskii, and Kurtz-Feng Large Deviation Results to Risk Reserve Processes with Aggregate Claims  [PDF]
Jorge Garcia, Ana Meda
Applied Mathematics (AM) , 2012, DOI: 10.4236/am.2012.312A291
Abstract: In this paper we examine the large deviations principle (LDP) for sequences of classic Cramér-Lundberg risk processes under suitable time and scale modifications, and also for a wide class of claim distributions including (the non-super- exponential) exponential claims. We prove two large deviations principles: first, we obtain the LDP for risk processes on D[0,1] with the Skorohod topology. In this case, we provide an explicit form for the rate function, in which the safety loading condition appears naturally. The second theorem allows us to obtain the LDP for Aggregate Claims processes on D[0,) with a different time-scale modification. As an application of the first result we estimate the ruin probability, and for the second result we work explicit calculations for the case of exponential claims.
Somatic Condition, Growth and Reproduction of Hake, Merluccius merluccius L., in the Portuguese Coast  [PDF]
Ana Maria Costa
Open Journal of Marine Science (OJMS) , 2013, DOI: 10.4236/ojms.2013.31002

Weight/length relationships, condition factor, gonadosomatic and hepatosomatic indices, conversion factor for gutted to total weight and spawning season of hake in the Portuguese Coast (36.92 to 42.22 degrees latitude N; 9.61 to 6.07 degrees longitude W) were investigated for the first time, aiming to fill the lack of information on the biology of hake of the Portuguese waters. Data were obtained from commercial samples collected between 2005 and 2010 and pooled by month. Sex ratio observed in fish below 40 cmwas close to 1:1; females were always dominant above50 cmlength. All the parameters were analysed by month and by sex and by combined sexes. The relationships obtained for combined sexes for the entire period concerning the growth in length and weight were: total length-total weight =0.0038L3.172, total length-gutted weight =0.0052L3.059. The relationship total weight-gutted weight was Wt = 15.8112 + 0.8480Wg and the conversion factor was of 1.1524. The growth rate is similar for both sexes but different when based on total weight or gutted weight. The analysis of the condition factor, gonadosomatic index, hepatosomatic index and the monthly distribution of the maturity stages seem to indicate that hake from thePortugueseCoasthas a long spawning season, with three spawning peaks in March, May and August but the start of the spawning season seems independent of the fish length.


Spacial and Temporal Variation of Degradation of Organic Matter by Benthic Macroinvertebrates  [PDF]
Ana Ribeiro, Natividade Vieira
Journal of Environmental Protection (JEP) , 2013, DOI: 10.4236/jep.2013.411A001

Leaf litter input from riparian landscapes has been identified as both a major energy flow to stream ecosystems and as a food source for stream macroinvertebrates. In this study the benthic macroinvertebrate community was used to evaluate the decomposition of organic matter in river systems. The aim of this work was to study the decomposition of organic matter using the benthic macroinvertebrate colonization. The research was developed over five months (January 2011 to May 2011) in four different sites, distributed along the River Ferreira terminal area, northern Portugal. A litter bag experiment was used to examine the role of macroinvertebrate communities in the processing of organic material on the river. Litter bags were placed in the water and collected every 7, 15, 30, 60, 90 and 120 days. In litter bags was observed a high abundance of Oligochaeta and Chironomidae, which are characterized by being detritivorous-herbivores and filtering collectors, respectively, indicating the benthic macroinvertebrate more involved on the decomposition of organic matter. These results contributed to increase current knowledge about benthic macroinvertebrate communities and may serve as incentive for future research works.

Teaching with an Attitude: Finding Ways to the Conundrum of a Postmodern Curriculum  [PDF]
Ana Paula Martinez Duboc
Creative Education (CE) , 2013, DOI: 10.4236/ce.2013.412A2009
Abstract: Several scholars in the field of education have questioned the constituent aspects of a curriculum that would better respond to the rising demands in contemporary societies. The relevance of such enquiry finds its place in the very transformations in today’s societies marked by significant changes in the ways of knowing, being, and acting primarily due to the advent of new digital media in more recent globalizing processes. As Burke (2009) has stated, if schools wish to maintain their relevance in society, they must take into account such changes by first and foremost acknowledging the new and complex ways of making meanings in out-of-school literacy practices as equally legitimating those happening within school contexts. Along with Burke (ibid.), this paper advocates the need of rethinking the notion of curriculum in the light of the new ontologies and epistemologies of postmodernity. Such task proves itself to be a conundrum inasmuch as the very notion of curriculum has been traditionally founded on modern principles such as linearity, stability, and universality (Silva, 2009). In view of this, how can educators respond to the challenge of redefining what should be taught in schools in postmodern times so that students would better perform in relation to the self and the other within their social practices? This paper aims to analyse the relationship between postmodern philosophical concepts, curriculum theory and educational practice by presenting the notion of curricular attitude (Duboc, 2012) as a local redesign of teaching practices within a Brazilian educational context. Despite being situated in the field of foreign language teaching, the notion of a curricular attitude might be of interest of other areas of knowledge since it seeks to revisit teaching practices in the light of wider philosophical concerns.
Patient State Index Detects Changes in Cerebral Blood Flow and May Predict New Ischemic Lesions during Carotid Stenting—Case Report  [PDF]
Ana B. Fernández
Open Journal of Anesthesiology (OJAnes) , 2015, DOI: 10.4236/ojanes.2015.51004
Abstract: Carotid angioplasty and stenting (CAS) was developed to be a less invasive and complex procedure compared to carotid endarterectomy (CEA). It has emerged as an alternative for patients who are considered to have high surgical risks due to medical comorbidities or anatomical high-risk features [1]. The procedure is usually done under local anesthesia with light sedation, with the subsequent expectation of less neurologic injury, venous thromboembolisms, and myocardial infarctions—all well-known clinical risks of undergoing surgical procedures under general anesthesia. CAS, however, carries some increased risks of arterial dissection, dislocation of atherothrombotic debris and embolization to the brain or eye, late embolization due to thrombus formation on the damaged plaque, and bradycardia and hypotension as a result of carotid sinus stimulation. Electroencephalography can detect cerebral ischemia and hypoxia along with measuring hypnotic effects, but has not been reported to be used during CAS to signal impending neurological deficit and allow for intervention to prevent stroke. We report on the use of patient state index (PSI), an electroencephalographic (EEG) derived variable used by SEDLine monitor (Masimo Inc., San Diego, CA) to monitor changes in cerebral blood flow during carotid angioplasty and stenting in an awake patient under local anesthesia. PSI was developed to measure the level of hypnosis and sedation during anesthesia and in the ICU. The PSI is based on quantitative electroencephalogram features, recorded from anterior and posterior scalp sites, as input to a multivariate algorithm that quantifies the most probable level of anesthesia or sedation. The PSI is reported as a range from 0 to 100, with decreasing values indicating increasing levels of anesthesia or sedation. Adequate depth of anesthesia is reflected by PSI value of 25 - 50, and a fully awake state by a PSI of 100 [2]. Other EEG analysis techniques have been explored to detect changes in cerebral blood flow during carotid surgery [3], such as entropy described by Khan and Ozcan in his recent work entitled Disagreement in Bilateral State Entropy Values in Carotid Artery Disease [4], but there are no previous reports of the use of PSI during procedural sedation in carotid angioplasty and stenting in an awake patient.
State of Art of Ants (Hymenoptera: Formicidae) at Caxiuan?, Melgaco, Pará, Brazil  [PDF]
Ana Yoshi Harada
Advances in Entomology (AE) , 2016, DOI: 10.4236/ae.2016.43013
Abstract: The ants are one of the mega diverse insets found in all terrestrial environments, and occur in great diversity, richness and abundance, acting at all trophic levels. The present study was conducted to verify the knowledge of ant fauna at Caxiuan? National forest. All available ant literature and some collection in Caxiuan? were compiled and analyzed in EXCEL program. Caxiuan? is one Brazilian Amazonia forest that has good biological conservation. A total of 197 species belonging to 52 genera of the nine subfamilies are present in Caxiuan?. Many studies need to be done in this place to understand the ant community pattern to give base for other studies and proposal for use, management and conservation of this interesting Amazonia place.
Perceptions of Mentoring Types by Doctoral Students and Mentors in Economy and Business Administration  [PDF]
Ana Arzen?ek
Open Journal of Social Sciences (JSS) , 2016, DOI: 10.4236/jss.2016.47015

A preliminary study has been conducted in order to assess doctoral student-faculty mentorship relations in the fields of Economy and Business administration. The overarching aim was to explore expectations and critical issues in the experiences of mentoring types by doctoral students and mentors. A total of 12 semi-structured interviews were conducted in two Slovenian public universities. The results show to some extent opposing expectations of PhD students and mentors regarding instrumental mentoring and psychosocial mentoring in practices. Implications are discussed and implications for further studies are provided.

Spatial Analysis with myGeoffice.org: The Pb Jura Lake, Switzerland, Contamination Case  [PDF]
Joao Negreiros, Ana Neves
Journal of Geoscience and Environment Protection (GEP) , 2019, DOI: 10.4236/gep.2019.72007
Abstract: Protecting groundwater from lead contamination is an important public-health concern and a major national environmental issue worldwide. This article addresses myGeoffice Web Internet service for geographers, in general, and geo-statistics researchers, in particular, with the famous water contamination case at Jura lake, Switzerland (a typical rural-urban region). Based on 189 samples of lead (Pb), five key investigation steps for a scientific perspective of any pollution incident are presented: Descriptive analysis (including nearest neighborhood, G(h) and Kernel techniques), spatial autocorrelation (Moran location scatterplot and Moran I) and Ordinary Kriging (OK) interpolation. The uncertainty and cost assessments issues are exceptionally tackled with Indicator Kriging (including the conditional cumulative distribution function, Shannon local entropy, probabilistic intervals and E-type estimation) and Gaussian geo-simulation. The total lead pollution exhibited patterns of high and low levels of concentrations along the all lake, leading to the conclusion that water is unsuitable for human consumption, in general, and unsuitable for any living organism, in particular sub-areas. It is also hoped that future GIS readers will follow this approach for their spatial cases with myGeoffice.
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