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Sample records for nonselective lima angiography

  1. Catheter Angiography

    Medline Plus

    Full Text Available ... What are the limitations of Catheter Angiography? What is Catheter Angiography? Angiography is a minimally invasive medical ... them appear bright white. top of page How is the procedure performed? This examination is usually done ...

  2. Catheter Angiography

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    Full Text Available ... medical conditions. Angiography uses one of three imaging technologies and, in most cases, a contrast material injection ... Angiography (CTA) X-ray, Interventional Radiology and Nuclear Medicine Radiation Safety Images related to Catheter Angiography Sponsored ...

  3. Metropolitan Lima: area profile.

    Science.gov (United States)

    Hakkert, R

    1986-11-01

    This profile of metropolitan Lima, Peru, covers administrative divisions; population growth; age distribution; ethnicity and religion; housing and households; education and health care; economic activity, income, and consumption; transport and communication; and sources of information. Nearly 30% of Peru's entire population and 42% of its urban population live in Lima. The trend continues, yet Lima's urban primacy is waning due to the growth of some regional centers like Trujillo and Chimbote. Lima is still almost 10 times as large as the country's next ranking cities, Trujillo on the northern coast and Arequipa in the south. Peru's main administrative divisions are the 24 departments, of which the Department of Lima is one. These departments are further divided into 156 provinces. Greater Lima consists of 2 such provinces, the province of Lima and the constitutional province of Callao. Although the population of Lima continues to grow, its rate of growth slowed from about 5.5% during the 1960s to about 3.9% in the 1970s. Current projections estimate a metropolitan population of 6.7 million by 1990. On the whole, Lima's age structure is somewhat older than that of the rest of Peru. The median age of the population is 22.3 years, compared to a national figure of 20.4. The proportion of persons over age 65 is only 3.6%, lower than the national average of 4.1%, due to the tendency of in-migration to concentrate people of intermediate ages in the cities. Almost 400,000 inhabitants of greater Lima are bilingual in Spanish and an indigenous language. As elsewhere in Peru, the dominant religion is Roman Catholicism. Lima is a spread out city with few high rise buildings due to the danger of earthquakes. Only 12% of Lima's households are found in apartment buildings. As in other cities of Latin America, the formal housing market is beyond the reach of a major segment of the population. Consequently, much of the urban settlement has occurred through informal self

  4. Catheter Angiography

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    Full Text Available ... spaghetti. top of page How does the procedure work? Catheter angiography works much the same as a ... iodine. If angiography is essential, a variety of methods is used to decrease risk of allergy: You ...

  5. Catheter Angiography

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    Full Text Available ... resonance imaging (MRI) In catheter angiography, a thin plastic tube, called a catheter , is inserted into an ... The catheter used in angiography is a long plastic tube about as thick as a strand of ...

  6. Catheter Angiography

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    Full Text Available ... you are pregnant and discuss any recent illnesses, medical conditions, medications you're taking and allergies, especially ... is Catheter Angiography? Angiography is a minimally invasive medical test that helps physicians diagnose and treat medical ...

  7. Catheter Angiography

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    Full Text Available Toggle navigation Test/Treatment Patient Type Screening/Wellness Disease/Condition Safety En Español More Info Images/Videos About Us News Physician ... Catheter Angiography? Angiography is a minimally invasive medical test that helps physicians diagnose and treat medical conditions. ...

  8. Catheter Angiography

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    Full Text Available Toggle navigation Test/Treatment Patient Type Screening/Wellness Disease/Condition Safety En Español More Info Images/Videos About Us News Physician ... Catheter Angiography? Angiography is a minimally invasive medical test that helps physicians diagnose and treat medical conditions. ...

  9. Digital subtraction angiography and intraarterial contrast medium injection for coronary examinations

    Energy Technology Data Exchange (ETDEWEB)

    Tobio, R.; Kallmeyer, C.; Castello, J.

    1985-01-01

    Digital subtraction angiography (DSA) is an established method of vasography, most extensively used as i.v. DSA. Intraarterial injection, however, applying selective or non-selective contrast medium injection, seems to be at least as important a technique although it has not yet met with corresponding interest. The article explains advantages of the technique for angiographic examinations, in particular of coronary angiography.

  10. Catheter Angiography

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    Full Text Available ... you! Do you have a personal story about radiology? Share your patient story here Images × Image Gallery ... Contrast Materials CT Angiography (CTA) X-ray, Interventional Radiology and Nuclear Medicine Radiation Safety Images related to ...

  11. Catheter Angiography

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    Full Text Available ... of page What are some common uses of the procedure? Catheter angiography is used to examine blood ... an hour away. top of page What does the equipment look like? The equipment typically used for ...

  12. Catheter Angiography

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    Full Text Available ... with you. top of page What are the benefits vs. risks? Benefits Angiography may eliminate the need for surgery. If ... cancer from excessive exposure to radiation. However, the benefit of an accurate diagnosis far outweighs the risk. ...

  13. Catheter Angiography

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    Full Text Available ... medical conditions. Angiography uses one of three imaging technologies and, in most cases, a contrast material injection ... accredited facilities database . This website does not provide cost information. The costs for specific medical imaging tests, ...

  14. Catheter Angiography

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    Full Text Available ... in patients after trauma. evaluate arteries feeding a tumor prior to surgery or other procedures such as ... supplying a small area of tissue or a tumor; this is called superselective angiography. Unlike computed tomography ( ...

  15. Catheter Angiography

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    Full Text Available ... using: x-rays with catheters computed tomography (CT) magnetic resonance imaging (MRI) In catheter angiography, a thin plastic tube, ... blood flow to the brain and cause a stroke. identify a small aneurysm or arteriovenous malformation (abnormal ...

  16. Catheter Angiography

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    Full Text Available ... injection of contrast material to examine blood vessels in key areas of the body for abnormalities such ... makes it possible to combine diagnosis and treatment in a single procedure. Catheter angiography produces very detailed, ...

  17. Catheter Angiography

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    Full Text Available ... X-rays are a form of radiation like light or radio waves. X-rays pass through most ... catheter angiography to lessen the risk of allergic reaction. Another option is to undergo a different exam ...

  18. Catheter Angiography

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    Full Text Available ... top of page What are the benefits vs. risks? Benefits Angiography may eliminate the need for surgery. ... in the typical diagnostic range for this exam. Risks There is always a slight chance of cancer ...

  19. Catheter Angiography

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    Full Text Available ... medical conditions. Angiography uses one of three imaging technologies and, in most cases, a contrast material injection ... a tendency to bleed. top of page Additional Information and Resources Society of Interventional Radiology (SIR) - Patient ...

  20. Catheter Angiography

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    Full Text Available ... spaghetti. top of page How does the procedure work? Catheter angiography works much the same as a ... these links. About Us | Contact Us | FAQ | Privacy | Terms of Use | Links | Site Map Copyright © 2017 Radiological ...

  1. Catheter Angiography

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    Full Text Available ... few millimeters) in the skin where the catheter can be inserted into an artery. The catheter is ... need for surgery. If surgery remains necessary, it can be performed more accurately. Catheter angiography presents a ...

  2. Catheter Angiography

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    Full Text Available ... most cases, the kidneys will regain their normal function within five to seven days. Rarely, the catheter ... limitations of Catheter Angiography? Patients with impaired kidney function, especially those who also have diabetes, are not ...

  3. Catheter Angiography

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    Full Text Available ... of page What are some common uses of the procedure? Catheter angiography is used to examine blood ... an hour away. top of page What does the equipment look like? The equipment typically used for ...

  4. Catheter Angiography

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    Full Text Available ... E-mail: Area code: Phone no: Thank you! Images × Image Gallery Interventional radiologist performing an angiography exam View ... address): From (your name): Your e-mail address: Personal message (optional): Bees: Wax: Notice: RadiologyInfo respects your ...

  5. Catheter Angiography

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    Full Text Available ... Español More Info Images/Videos About Us News Physician Resources Professions Site Index A-Z Catheter Angiography ... may eliminate the need for surgery. Tell your doctor if there's a possibility you are pregnant and ...

  6. Catheter Angiography

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    Full Text Available ... spaghetti. top of page How does the procedure work? Catheter angiography works much the same as a regular x-ray ... any possibility that they are pregnant. See the Safety page for more information about pregnancy and x- ...

  7. Catheter Angiography

    Medline Plus

    Full Text Available ... images are captured using a small dose of ionizing radiation ( x-rays ). top of page What are some common uses of the procedure? Catheter angiography is used to examine blood vessels in key areas of the body, including the: brain neck heart chest abdomen (such as the kidneys ...

  8. Jorge de Lima: Brazilian Poet

    Science.gov (United States)

    Kennedy, James H.

    1973-01-01

    Discusses Jorge de Lima--born in Uniao dos Palmares, Brazil on April 23, 1893, died in Rio de Janeiro on November 15, 1953--who during the Twenties became an important member of the literary movement known as Modernism and wrote both religious and regional poetry constituting the beginnings of a Afro-Brazilian poetry. (Author/JM)

  9. MR angiography

    Energy Technology Data Exchange (ETDEWEB)

    Miki, Hitoshi; Hamamoto, Ken (Ehime Univ., Shigenobu (Japan). School of Medicine)

    1994-01-01

    As the result of the application of the recently developed MR techniques, the diagnosis of the morphology and the function has been possible. MR angiography (MRA) is one of these new techniques, and provides vascular anatomy and hemodynamics. At present, there is the limitation in the indication of MRA for pediatric cerebral vascular diseases. However, the frequency of clinical application of MRA is expected to increase by rapidly progressed MR techniques. Of these MRA, time-of flight (TOF) MRA, and phase contrast (PC) MRA are now being examined clinically as main MRA methods for evaluating cerebrovascular diseases, such as Moyamoya disease, arteriovenous malformation, and cerebral aneurysm. During our study, 2D and 3D TOF MRA, and 2D PC and 3D PC MRA were performed for evaluating cerebrovascular diseases. The purpose of this paper is to explain the methods of these MRA, and clinical indications of MRA by showing representative clinical cases of cerebrovascular diseases. We consider that MRA ia a useful method for detecting and following-up pediatric cerebrovascular diseases at present time. It is necessary for radiologists to know the basis and clinical indications of MRA. (author).

  10. Carotid angiography

    Directory of Open Access Journals (Sweden)

    Arne Torkildsen

    1950-03-01

    Full Text Available After a brief review of the history of cerebral angiography, some of the most important points concerning the percutaneous angiographic technique have been described. The value of the angiographic examination in cases of cerebral gliomas has been studied, based upon a consecutive series of 127 verified cases of hemispherical gliomas. Of 31 cases of frontal glioma, 28 could be diagnosed by the angiographic method; of 33 cases of parietal glioma, the angiograms revealed the neoplasm in 27 instances; of 39 cases of temporal glioma, the tumor could be localized in 38 cases; of 13 cases of occipital glioma, the angiographic localization of the tumor was successfull in 9 instances; of 11. cases of glioma infiltrating the corpus callosum and (or the basal ganglia, the angiographic examination was successful in only 3 cases. The angiographic examination in cases of cerebral glioma, in my experience, yields a more satisfactory result as to the localization than does the pneumography. The only exception concerns the gliomas growing in the thalamus or in the basal ganglia. These are more easily localized by means of ventriculography. As to the differential diagnosis of the gliomas, tumor vessels could, be seen both in astrocytomas and in glioblastomas. Most cases of astrocytomas were however devoid of specific tumor vessels. When present they could not be definitely distinguished from those seen in glioblastomas, but the abnormal findings were far less numerous and definitely less pronounced in astrocytomas than in glioblastomas. In most cases the astrocytomas were characterized only by displacement of blood vessels of normal appearance, while the glioblastomas frequently-presented both displacement of normal appearing blood vessels and new formed blood vessels within the neoplasm itself. The pathological blood vessels in the tumor were frequently abnormal both regarding their topographical appearance and their type. Frequent findings were arterio

  11. Selective and nonselective inhibition of competitors in picture naming.

    Science.gov (United States)

    Shao, Zeshu; Meyer, Antje S; Roelofs, Ardi

    2013-11-01

    The present study examined the relation between nonselective inhibition and selective inhibition in picture naming performance. Nonselective inhibition refers to the ability to suppress any unwanted response, whereas selective inhibition refers to the ability to suppress specific competing responses. The degree of competition in picture naming was manipulated by presenting targets along with distractor words that could be semantically related (e.g., a picture of a dog combined with the word cat) or unrelated (tree) to the picture name. The mean naming response time (RT) was longer in the related than in the unrelated condition, reflecting semantic interference. Delta plot analyses showed that participants with small mean semantic interference effects employed selective inhibition more effectively than did participants with larger semantic interference effects. The participants were also tested on the stop-signal task, which taps nonselective inhibition. Their performance on this task was correlated with their mean naming RT but, importantly, not with the selective inhibition indexed by the delta plot analyses and the magnitude of the semantic interference effect. These results indicate that nonselective inhibition ability and selective inhibition of competitors in picture naming are separable to some extent.

  12. The Effect of Diet Mixing on a Nonselective Herbivore.

    Directory of Open Access Journals (Sweden)

    Sophie Groendahl

    Full Text Available The balanced-diet hypothesis states that a diverse prey community is beneficial to consumers due to resource complementarity among the prey species. Nonselective consumer species cannot differentiate between prey items and are therefore not able to actively regulate their diet intake. We thus wanted to test whether the balanced-diet hypothesis is applicable to nonselective consumers. We conducted a laboratory experiment in which a nonselective model grazer, the freshwater gastropod Lymnaea stagnalis, was fed benthic green algae as single species or as a multi-species mixture and quantified the snails' somatic growth rates and shell lengths over a seven-week period. Gastropods fed the mixed diet were found to exhibit a higher somatic growth rate than the average of the snails fed single prey species. However, growth on the multi-species mixture did not exceed the growth rate obtained on the best single prey species. Similar results were obtained regarding the animals' shell height increase over time. The mixed diet did not provide the highest growth rate, which confirms our hypothesis. We thus suggest that the balanced-diet hypothesis is less relevant for non-selective generalist consumers, which needs to be considered in estimates of secondary production.

  13. Non-Selective Lexical Access in Different-Script Bilinguals

    Science.gov (United States)

    Moon, Jihye; Jiang, Nan

    2012-01-01

    Lexical access in bilinguals is known to be largely non-selective. However, most studies in this area have involved bilinguals whose two languages share the same script. This study aimed to examine bilingual lexical access among bilinguals whose two languages have distinct scripts. Korean-English bilinguals were tested in a phoneme monitoring task…

  14. LIMaS: the JAVA-based application and database for microarray experiment tracking.

    Science.gov (United States)

    Webb, Sarah C; Attwood, Anthony; Brooks, Tony; Freeman, Tom; Gardner, Phil; Pritchard, Clare; Williams, Debbie; Underhill, Peter; Strivens, Mark A; Greenfield, Andy; Pilicheva, Ekaterina

    2004-09-01

    Microarrays allow monitoring of gene expression for tens of thousands of genes in parallel and are being used routinely to generate huge amounts of valuable data. Handling and analysis of such data are becoming major bottlenecks in the utilization of the technology. To enable the researcher to interpret the results postanalysis, we have developed a laboratory information management system for microarrays (LIMaS) with an n-tier Java front-end and relational database to record and manage large-scale expression data preanalysis. This system enables the laboratory to replace the paper trail with an efficient and fully customizable interface giving it the ability to adapt to any working practice, e.g., handling many resources used to form many products (chaining of resources). The ability to define sets of activities, resources, and workflows makes LIMaS MIAME-supportive.

  15. Non-Selective SiGe Graphic Epitaxial by MBE

    Institute of Scientific and Technical Information of China (English)

    Qian Zhou; Chun Han; Jing-Chun Li

    2007-01-01

    To handle the thermal budget in SiGe BiCMOS process, a nonselective graphic epitaxial technology using molecular beam epitaxial (MBE) has been developed. SEM, AFM, XRD, and dislocation density measurements are carried out. The SiGe film's RMS roughness is 0.45nm, and dislocation density is 0.3×103cm2~1.2×103cm2. No dislocation accumulation exists on the boundary of the windows; this indicates the high quality of the SiGe film. The experiment results show that the technology presented in this paper meets the fabrication requirements of SiGe BiCMOS.

  16. Magnetic resonance angiography

    Science.gov (United States)

    ... in the wall of the blood vessel) Aortic coarctation Aortic dissection Stroke Carotid artery disease Atherosclerosis of ... 13, 2016. Read More Aortic angiography Aortic dissection Coarctation of the aorta Coronary heart disease Hardening of ...

  17. MR angiography with Vasovist

    Energy Technology Data Exchange (ETDEWEB)

    Goyen, Mathias [University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20251 Hamburg (Germany)], E-mail: goyen@uke.uni-hamburg.de

    2007-12-15

    Vasovist (Gadofosveset) is the first intravascular contrast agent approved for use with magnetic resonance angiography in the European Union. This blood pool contrast agent reversibly binds to albumin providing extended intravascular enhancement compared to existing extracellular magnetic resonance contrast agents. Prior to approval, Vasovist underwent extensive clinical and pre-clinical testing to evaluate the safety and efficacy of the drug. The clinical trials program included blinded, placebo-controlled dose ranging, efficacy in a variety of vascular beds (aorto-iliac, renal, pedal), examination of potential drug interaction with warfarin, and comparison with X-ray angiography. The clinical trials show that Vasovist-enhanced MR angiography is safe and well tolerated in patients with vascular disease, effective for the detection of vascular stenosis and aneurysms, significantly more accurate (both more sensitive and specific) than non-contrast MR angiography for the diagnosis of vascular stenoses, and similar to conventional angiography for the overall characterization of vascular disease, without the need for catheterization. This review article highlights the product characteristics of Vasovist, gives an overview of the clinical development program and discusses selected clinical applications.

  18. Nonselective and polarization effects in time-resolved optogalvanic spectroscopy

    Science.gov (United States)

    Zhechev, D.; Steflekova, V.

    2016-02-01

    Three interfering effects in optogalvanic (OG) spectroscopy are identified in a hollow cathode discharge (HCD) - OG detector. The laser beam is found to generate two nonselective processes, namely photoelectron emission (PE) from the cathode surface with a sub-breakdown bias applied, and nonresonant space ionization. The convolution of these galvanic contributions was determined experimentally as an instrumental function and a deconvolution procedure to determine the actual OG signal was developed. Specific plasma conductance is detected dependent on the polarization of the laser beam irradiating. Linearly/circularly polarized light beam is found to induce OG signals differ in amplitude (and their shape parameters in the time-resolved OG signals (TROGS)). The phenomena coherence and specific conductance are found to be in causal relationship. The additional conductance due to coherent states of atoms manifests itself as an intrinsic instrumental property of OG detector.

  19. Lima Climate Change Conference: Compromise Lirrrits Achievements

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    THE annual United Nations Cli- mate Change Conference, held in Lima, capital of Peru, finally concluded in the small hours of December 14, 2014, after running more than 32 hours over schedule. There were gaps in the General As- sembly's adoption of a final resolution, but it reached a consensus on elements of the draft agreement expected to be passed at the Paris climate change con- ference in December 2015.

  20. MR angiography (MRA)

    Energy Technology Data Exchange (ETDEWEB)

    Hasuo, Kanehiro [Kyushu Univ., Fukuoka (Japan). Faculty of Medicine

    1995-12-01

    The primary goal of vascular imaging is the visualization of morphology and hemodynamics. Catheter angiography has been regarded as a gold standard for this purpose. However, MR angiography (MRA) is now increasingly being recognized as an important noninvasive technique for the depiction of vascular diseases and is partially superseding catheter angiography. The author evaluated the usefulness of MRA in the diagnosis of cerebral aneurysms and moyamoya disease. All aneurysms 5 mm or larger in diameter could be detected and most of those less than 5 mm in diameter were also detectable with using a combination of MIP images, target MIP images and source images. In moyamoya disease, the diagnosis could be made in all. For hemodynamic changes, flow directions in the circle of Willis could be visualized by phase-contrast MRA in a normal volunteer. In addition, MRA successfully showed the patency of surgical collaterals in cases of moyamoya disease. Despite some limitations compared with catheter angiography, MRA has a high sensitivity and specificity in the diagnosis of cerebrovascular abnormalities. Furthermore, screening of cerebral aneurysms or cerebrovascular occlusive diseases seems to be a new, and important indication for MRA. (author).

  1. Primary repair of colon injuries: clinical study of nonselective approach

    Directory of Open Access Journals (Sweden)

    Krivokapic Zoran V

    2010-12-01

    Full Text Available Abstract Background This study was designed to determine the role of primary repair and to investigate the possibility of expanding indications for primary repair of colon injuries using nonselective approach. Methods Two groups of patients were analyzed. Retrospective (RS group included 30 patients managed by primary repair or two stage surgical procedure according to criteria published by Stone (S/F and Flint (Fl. In this group 18 patients were managed by primary repair. Prospective (PR group included 33 patients with primary repair as a first choice procedure. In this group, primary repair was performed in 30 cases. Results Groups were comparable regarding age, sex, and indexes of trauma severity. Time between injury and surgery was shorter in PR group, (1.3 vs. 3.1 hours. Stab wounds were more frequent in PR group (9:2, and iatrogenic lesions in RS group (6:2. Associated injuries were similar, as well as segmental distribution of colon injuries. S/F criteria and Flint grading were similar. In RS group 15 primary repairs were successful, while in two cases relaparotomy and colostomy was performed due to anastomotic leakage. One patient died. In PR group, 25 primary repairs were successful, with 2 immediate and 3 postoperative (7-10 days deaths, with no evidence of anastomotic leakage. Conclusions Results of this study justify more liberal use of primary repair in early management of colon injuries. Trial registration Current Controlled Trials ISRCTN94682396

  2. Ibudilast: a non-selective phosphodiesterase inhibitor in brain disorders

    Directory of Open Access Journals (Sweden)

    Joanna Schwenkgrub

    2017-03-01

    Full Text Available Ibudilast (IBD is a non-selective (3, 4, 10, 11 phosphodiesterase (PDE inhibitor, used mainly as a bronchodilator for the treatment of bronchial asthma. PDE play a central role in cellular function (e.g. differentiation, synaptic plasticity and inflammatory response by metabolizing cyclic nucleotides. The results from preclinical and clinical studies indicate that IBD has a broader range of action through suppression of pro-inflammatory cytokines (IL-6, IL-1β, TNF-α, toll-like receptor 4 blockade (TLR-4, inhibition of a macrophage migration inhibitory factor (MIF, up-regulation the anti-inflammatory cytokine (IL-10, and promotion of neurotrophic factors (GDNF, NGF, NT-4. Recent data indicate that the efficacy of IBD appears to be independent from PDE inhibition activity and rather linked to glial activity attenuation. Additional advantages of IBD, such as crossing the blood–brain barrier, good tolerance and activity by oral administration, makes it a promising therapeutic candidate for treating neuroinflammatory conditions, where the currently available treatment remains unsatisfying due to poor tolerability and/or sub-optimal efficacy. IBD has no direct receptor affinity with exemption of some undefined effect on adenosine receptors that makes the drug devoid of its receptors-mediated adverse effects. Current article provides an overview of the pharmacology of IBD with a focus on preclinical and clinical data supporting its potential neuroprotective benefits for neurological conditions, including multiple sclerosis, neuropathic pain, medication overuse headache, stroke, opioid, alcohol and methamphetamine abuse.

  3. Jorge de Lima e a Poesia Transicional

    Directory of Open Access Journals (Sweden)

    Leandro Durazzo

    2011-01-01

    Full Text Available

    Resumo: Este pequeno artigo estuda a poesia como transmissão de um estado poético vivenciado. Jorge de Lima, pela via da poesia como linguagem essencial – que busca reproduzir no leitor a própria experiência do sentimento poético -, traz à realidade a vivência integradora do homem com o meio – cósmico, social, religioso. Traçando paralelos com as noções de objeto transicional (Winnicott e mito como objeto transicional coletivo (Green, buscaremos evidenciar o modo pelo qual, poeticamente, Jorge de Lima cria uma experiência lingüística criativa, que equilibra e relaciona as motivações subjetivas do poeta com as implicações objetivas da realidade externa, sociocultural.

    Abstract: The paper studies poetry as the transmission of a lived poetical state. Jorge de Lima, through poetry as essential language – that strives to reproduce in the reader the very existence of the poetical feeling – brings to reality the integrating living between man and environment – whether cosmic, social or religious. Establishing parallels with the notion of transitional object (Winicott and myth and collective transition object (Green, the aim of this article is to throw light over

  4. Safety of the nonselective NSAID nabumetone : focus on gastrointestinal tolerability.

    Science.gov (United States)

    Bannwarth, Bernard

    2008-01-01

    Although effective in the treatment of pain associated with rheumatic conditions such as osteoarthritis and rheumatoid arthritis, long-term use of NSAIDs is primarily limited by their association with upper gastrointestinal (GI) toxicity. Adverse effects range from dyspepsia and abdominal pain to ulceration and bleeding. GI damage elicited by NSAIDs arises as the result of biochemically induced topical irritant effects and by topical and systemic pharmacological suppression of gastroprotective prostaglandins. Variation in the physicochemical properties and pharmacological profiles among the individual NSAIDs translate into inter-agent differences regarding propensity to cause adverse GI effects. Nabumetone is a nonselective NSAID that offers distinct advantages over other agents in this class with regard to GI tolerability. Its non-acidic nature and pro-drug formulation, together with the lack of biliary secretion of its active metabolite, 6-methoxy-2-naphthylacetic acid, are thought to contribute to the improved GI tolerability of this drug. In head-to-head trials with other NSAIDs, nabumetone has demonstrated significant benefits regarding the incidence of GI events and more serious perforations, ulcers and bleeds (PUBs). Pooled data from eight postmarketing, randomized, controlled trials demonstrated a lower cumulative frequency of PUBs with nabumetone (0.03%; 95% CI 0.0, 0.08) versus comparator NSAIDs (1.4%; 95% CI 0.5, 2.4). Large-scale database studies also indicate that risk of serious GI complications is lower with nabumetone than comparator NSAIDs. Limited comparative data suggest that nabumetone offers a GI tolerability profile similar to that of cyclo-oxygenase-2 selective NSAIDs (coxibs). Although adverse cardiovascular outcomes appear to be a class effect of the coxibs, conventional NSAIDs may also have the potential for causing atherothrombotic complications. However, based on available data, nabumetone does not appear to be associated with increased

  5. CT coronary angiography vs. invasive coronary angiography in CHD

    Directory of Open Access Journals (Sweden)

    Anja Hagen

    2012-04-01

    Full Text Available Scientific background: Various diagnostic tests including conventional invasive coronary angiography and non-invasive computed tomography (CT coronary angiography are used in the diagnosis of coronary heart disease (CHD. Research questions: The present report aims to evaluate the clinical efficacy, diagnostic accuracy, prognostic value cost-effectiveness as well as the ethical, social and legal implications of CT coronary angiography versus invasive coronary angiography in the diagnosis of CHD. Methods: A systematic literature search was conducted in electronic data bases (MEDLINE, EMBASE etc. in October 2010 and was completed with a manual search. The literature search was restricted to articles published from 2006 in German or English. Two independent reviewers were involved in the selection of the relevant publications. The medical evaluation was based on systematic reviews of diagnostic studies with invasive coronary angiography as the reference standard and on diagnostic studies with intracoronary pressure measurement as the reference standard. Study results were combined in a meta-analysis with 95 % confidence intervals (CI. Additionally, data on radiation doses from current non-systematic reviews were taken into account. A health economic evaluation was performed by modelling from the social perspective with clinical assumptions derived from the meta-analysis and economic assumptions derived from contemporary German sources. Data on special indications (bypass or in-stent-restenosis were not included in the evaluation. Only data obtained using CT scanners with at least 64 slices were considered. Results: No studies were found regarding the clinical efficacy or prognostic value of CT coronary angiography versus conventional invasive coronary angiography in the diagnosis of CHD. Overall, 15 systematic reviews with data from 44 diagnostic studies using invasive coronary angiography as the reference standard (identification of obstructive

  6. Grandes incendios urbanos: mesa redonda, Lima 2001

    Directory of Open Access Journals (Sweden)

    Juan L. Arce-Palomino

    2008-01-01

    Full Text Available Entre los desastres antrópicos destacan los grandes incendios urbanos. El 29 de diciembre de 2001, en un área comercial tugurizada del centro de Lima, Perú se produjo un gran incendio que causó 277 muertes, 247 heridos, millonarias pérdidas y un gran dolor en el pueblo peruano. Esta situación se había previsto, pero no se tomaron las acciones necesarias para evitarla. En este artículo se recopila la situación previa, las características de la tragedia, las acciones y organización que se tuvo para su control, se destaca el trabajo interdisciplinario y la una activa participación del Cuerpo General de Bomberos Voluntarios del Perú.

  7. An antifungal peptide from baby lima bean.

    Science.gov (United States)

    Wang, H X; Ng, T B

    2006-12-01

    A 6-kDa antifungal peptide with inhibitory activity on mycelial growth in Fusarium oxysporum, Mycosphaerella arachidicola, and Physalospora piricola was isolated from baby lima beans. The peptide suppressed growth in M. arachidicola with an IC(50) of 0.87 muM and inhibited activity of HIV-1 reverse transcriptase with an IC(50) of 4 muM. The peptide exhibited an N-terminal amino acid sequence similar to those of leguminous defensins. The isolation procedure comprised ion exchange chromatography on diethylaminoethyl (DEAE)-cellulose, affinity chromatography on Affi-gel blue gel, ion exchange chromatography on carboxymethyl (CM)-cellulose, and gel filtration by fast protein liquid chromatography on Superdex 75. The peptide was unadsorbed on DEAE-cellulose and Affi-gel blue gel but was adsorbed on CM-cellulose.

  8. Enfoque geografico del manejo de emergencia en Lima y Callao

    National Research Council Canada - National Science Library

    Metzger, Pascale

    2012-01-01

    .... Esta demostracion se apoya en un estudio que se hizo sobre los recursos para la atencion de desastre en Lima y Callao, en la hipotesis de ocurrencia de un sismo de gran magnitud acompanado de un tsunami...

  9. Fluorescent blood cell angiography

    Science.gov (United States)

    Ben-nun, Joshua; Constable, Ian J.

    1994-06-01

    Fluorescein angiography is currently the main method for evaluation of the retinal vascular patency. Ashton noted that capillary patency to the small fluorescein molecule may differ from that of the larger red blood cells. He concluded that fluorescein angiography is not able to demonstrate a developing stenosis, that might be the precipitating cause of a later capillary closure in various microvasculopathies. Sarelius et al have shown, in hamster cheek pouch and cremaster muscle, that fluorescently labeled erythrocytes in known concentrations can be used for the direct measurement of capillary flow parameters. The only assumption that this method relies on, is that the labeled cells are rheologically normal and therefore reflect the behavior of the total cell population. We have developed a new method for an in-vivo, real-time demonstration of the blood cell flow in the retinal capillary net. Based on the assumption presented by Sarelius et al, measurement and analysis of the retinal capillary blood cell flow is also possible from the results achieved by the new method.

  10. Insects diversity in lima bean (Phaseolus lunatus

    Directory of Open Access Journals (Sweden)

    WIWIN SETIAWATI

    2005-10-01

    Full Text Available Lima bean (Phaseolus lunatus is a vegetable which usually made as a home yard plant for Indonesian people to fulfill their daily needs. This plant has not been produced in the large number by the farmer. So it is hard to find in the market. Lima bean is light by many kind of insect. Inventory, identification and the study of insect taxon to this plant is being done to collect some information about the insect who life in the plant. The research was done in Balitsa experiment garden in the district of Lembang in Bandung regency on November 2003-February 2004, the experiment start at 4 weeks age, at the height of 1260 m over the sea level. The observation was made systematically by absolute method (D-vac macine and relative method (sweeping net. The research so that there were 26 species of phytofagous insect, 9 species of predator insect, 6 species of parasitoid insect, 4 species of pollinator and 14 species of scavenger insect. According to the research the highest species number was got in the 8th week (3rd sampling, which had 27 variety of species, so the highest diversity was also got in this with 2,113 point. Aphididae and Cicadellidae was the most insect found in roay plant. The research also had high number of species insect so the diversity of insect and evenness become high. A community will have the high stability if it is a long with the high diversity. High evenness in community that has low species dominance and high species number of insect so the high of species richness.

  11. Human toxocariosis: Seroprevalence in Lima inhabitans by ELISA technique

    OpenAIRE

    ESPINOZA, YRMA; Instituto de Medicina Tropical “Daniel A. Carrión”, Facultad de Medicina, UNMSM; Departamento Académico de Microbiología Médica Facultad de Medicina, UNMSM; Huapaya, Pedro; Instituto de Medicina Tropical “Daniel A. Carrión”, Universidad Nacional Mayor de San Marcos; Sevilla, Carlos; Departamento Académico de Microbiología Médica; Huiza, Alina; Instituto de Medicina Tropical “Daniel A. Carrión”, Universidad Nacional Mayor de San Marcos, Lima, Perú. Bióloga.; Jiménez, Susana; Departamento Académico de Microbiología Médica, Facultad de Medicina, Universidad Nacional Mayor de San Marcos. Lima, Perú.; Náquira, César; Instituto de Medicina Tropical “Daniel A. Carrión”, UNSMM; Instituto Nacional de Salud

    2013-01-01

    Objective: To estimate seroprevalence of human toxocariosis in Lima inhabitants. Design: Cross-sectional study, non aleatory selection. Material and methods: To people living in Lima city urban marginal communities, an interview and clinical examination were done and serum samples obtained to detect antibodies against Toxocara by ELISA technique. Stool samples were also obtained to check parasites causing cross reactions with serology. Results: From 553 persons examined 23,3% were reactive. T...

  12. El objeto de arte como objeto social en Lima virreinal

    Directory of Open Access Journals (Sweden)

    Martha Barriga Tello

    2011-05-01

    Full Text Available En cualquier sociedad, como en la Lima virreinal, las imágenes que se producen por razones artísticas o religiosas pueden ser interpretadas y consideradas de diversas maneras por los observadores y usuarios. Esto es posible por su carácter abierto, que permite su apropiación para diversos objetivos. Palabras claves: Arte virreinal, Lima, objeto de arte.

  13. Coronary CT angiography and MR angiography of Kawasaki disease

    Energy Technology Data Exchange (ETDEWEB)

    Goo, Hyun Woo [University of Ulsan College of Medicine, Department of Radiology, Asan Medical Center, 388-1 Poongnap-2dong, Songpa-gu, Seoul (Korea); Park, In-Sook; Ko, Jae Kon; Kim, Young Hwee [University of Ulsan College of Medicine, Department of Paediatric Cardiology, Asan Medical Center, Seoul (Korea)

    2006-07-15

    Although the incidence of coronary artery aneurysms has diminished in patients with Kawasaki disease, coronary artery involvement is still regarded as a major complication of the disease, significantly affecting morbidity and mortality. Recent technical advances in coronary CT angiography (CTA) and MR angiography (MRA) have led to the possibility of using these two imaging methods as minimally invasive alternatives to the more invasive diagnostic catheter angiography in evaluating coronary artery abnormalities, such as aneurysm, stenosis, and occlusion. In this article, we describe imaging techniques and findings of coronary CTA and MRA in Kawasaki disease. (orig.)

  14. Japoneses, chinos e indios en Lima cosmopolita de inicios del siglo XVII

    OpenAIRE

    Vega Loyola, José; Facultad de Humanidades, Universidad Nacional Federico Villarreal.

    2015-01-01

    Se identifica la presencia de población asiática en la ciudad de Lima de inicios del siglo XVII, en base al Padrón de indios en Lima de 1613, los Libros de Cabildo de Lima, partidas matrimoniales y bautismales del Archivo Arzobispal de Lima, y protocolos notariales del Archivo General de la Nación. Se confeccionó una base de datos conteniendo nombres y apellidos, estado civil, edad, lugar de origen, tiempo y lugar de residencia en Lima y actividad económica. Se encontró que Lima de inicios de...

  15. CT angiography - abdomen and pelvis

    Science.gov (United States)

    Computed tomography angiography - abdomen and pelvis; CTA - abdomen and pelvis; Renal artery - CTA; Aortic - CTA; Mesenteric CTA ... belly or pelvis Masses and tumors in the abdomen or pelvis, including cancer, when needed to help ...

  16. Can non-selective beta-blockers prevent hepatocellular carcinoma in patients with cirrhosis?

    DEFF Research Database (Denmark)

    Thiele, Maja; Wiest, Reiner; Gluud, Lise Lotte

    2013-01-01

    Hepatocellular carcinoma is the main liver-related cause of death in patients with compensated cirrhosis. The early phases are asymptomatic and the prognosis is poor, which makes prevention essential. We propose that non-selective beta-blockers decrease the incidence and growth of hepatocellular...... carcinoma via a reduction of the inflammatory load from the gut to the liver and inhibition of angiogenesis. Due to their effect on the portal pressure, non-selective beta-blockers are used for prevention of esophageal variceal bleeding. Recently, non-hemodynamic effects of beta-blockers have received...... reduce hepatic inflammation. Blockage of β-adrenoceptors also decrease angiogenesis by inhibition of vascular endothelial growth factors. Because gut-derived inflammation and neo-angiogenesis are important in hepatic carcinogenesis, non-selective beta-blockers can potentially reduce the development...

  17. Natural gas distribution network of Lima and Callao, Peru

    Energy Technology Data Exchange (ETDEWEB)

    Maroye, Stephane; Aerssens, Andre [Tractebel Engineering, Lima (Peru)

    2005-07-01

    In May 2002, Suez-Tractebel was awarded by the government of Peru a 30-year concession for the construction and operation of the gas distribution network in Lima, Peru. On 10 July, 2004, first gas was delivered to Lima, 1 month ahead of the official date. This gas distribution network, operated by GNLC (Gas Natural de Lima y Callao), delivers gas to some of the largest industries and power generators in and around Lima and the harbour area of Callao. Gas delivered in Lima comes through a 700 km HP gas pipeline from Camisea fields. This pipeline is operated by TGP (Transportadora de Gas del Peru). A City Gate is located at Lurin, on the southern side of the city. The gas distribution network is made of a 62 km main pipeline (20') with 25 km laterals. The main pipeline is operated at 50 bar, as the main customer, the Etevensa power plant, is located on the northern side of the city. Due to this high operating pressure combined to the surroundings, specific design philosophies were adopted to meet the extreme safety requirements. This paper highlights the specific measures taken during construction phase and the experience of the first months of operation of this challenging project. (author)

  18. Mesiodistal crown diameters of permanent dentition in schoolchildren from Lima

    OpenAIRE

    Pineda-Mejia, Martha; Departamento Académico de Estomatología Rehabilitadora, Facultad Odontología de la Universidad Nacional Mayor de San Marco, Perú.; Petkova- Gueorguieva, Marieta; Facultad Odontología de la Universidad Nacional Mayor de San Marcos.

    2015-01-01

    The purpose of this study was to determine the size of mesiodistal diameters of permanent teeth in a school population of the city of Lima, to analyze the differences between homologous teeth, sexual dimorphism of permanent teeth as well as the degree of variability of the measurements. Methodology: The study was conducted on 400 students of mestizos (200 men and 200 women) 10 to 12 years, from three schools in the districts of la Victoria and Barrios Altos, Lima city. The procedure was perfo...

  19. Origin and residence time of water in the Lima Aquifer

    CERN Document Server

    Montoya, Modesto

    2014-01-01

    The 8 million inhabitants of the coast Lima City are supplied with water from Rimac and Chillons rivers and water wells in the Lima aquifer. Historics of Rimac River flow and static level of water level in wells are correlated in order to calculate residence time of water since the aquifer is recharged by Rimac River until water reaches a well located 12 km farther, in Miraflores district near sea. Relative abundances of 2H and 18O are used to identify origins of waters from those wells. 3H and 14C contents, respectively, are used to estimate ages of waters.

  20. The determinants of part-time work in Metropolitan Lima

    Directory of Open Access Journals (Sweden)

    Manuel Enrique Saavedra Martinez

    2011-12-01

    Full Text Available The following paper examines the part-time work in Metropolitan Lima in 2008. The overall objective is to identify the determinants of the incidence of part-time work in Lima. We worked with one Probit econometric model, measured by the National Survey of Households (NSH, which explores the job characteristics of people. This will determine the presence of part-time workers in the areas of trade, health, education and communication; also realized that this group has completed university studies and incomplete, and the woman has a probability of 83,11397% more than men of working part time.

  1. Non-selective β-blockers do not affect mortality in cirrhosis patients with ascites

    DEFF Research Database (Denmark)

    Bossen, Lars; Krag, Aleksander; Vilstrup, Hendrik

    2016-01-01

    The safety of non-selective β-blockers (NSBBs) in advanced cirrhosis has been questioned. We used data from three satavaptan trials to examine whether NSBBs increase mortality in cirrhosis patients with ascites. The trials were conducted in 2006-2008 and included 1198 cirrhosis patients with asci...

  2. Non-selective beta-blockers decrease thrombotic events in patients with heart failure

    NARCIS (Netherlands)

    De Peuter, Olav R.; Souverein, Patrick C.; Klungel, Olaf H.; Lip, Gregory Y.; Buller, Harry R.; De Boer, Anthonius; Kamphuisen, Pieter W.

    2010-01-01

    Background: Beta-blockers are often prescribed to patients with heart failure (HF) without distinctions between types of beta-blockers. The 2002 COMET study showed superiority of carvedilol (a non-selective beta-blocker) over metoprolol (selective beta-blocker) on mortality and cardiovascular events

  3. Memory Outcomes Following Selective versus Nonselective Temporal Lobe Removal: A Systematic Review

    Science.gov (United States)

    Girgis, Fady

    2012-01-01

    The surgical removal of brain tissue for the treatment of temporal lobe epilepsy can be either nonselective, as with an anterior temporal lobectomy (ATL), or selective, as with a selective amygdalohippocampectomy (SAH). Although seizure outcomes are similar with both procedures, cognitive and memory outcomes remain a matter of debate. This study…

  4. Nonselective Harvesting of a Prey-Predator Fishery with Gompertz Law of Growth

    Science.gov (United States)

    Purohit, D.; Chaudhuri, K. S.

    2002-01-01

    This paper develops a mathematical model for the nonselective harvesting of a prey-predator system in which both the prey and the predator obey the Gompertz law of growth and some prey avoid predation by hiding. The steady states of the system are determined, and the dynamical behaviour of both species is examined. The possibility of existence of…

  5. KARAKTERISTIK AKTIVITAS PEDAGANG KAKI LIMA PADA KAWASAN KOMERSIAL DI PUSAT KOTA Studi Kasus: Simpang Lima, Semarang

    Directory of Open Access Journals (Sweden)

    Retno Widjajanti

    2012-02-01

    Full Text Available The characteristic of street vendors in Simpang Lima should be recognized. It is connected with spatial region’sactivity so that both of the formal and informal activities can exists harmonically. The characteristics of thestreet food vendors activity are follows: the activity space (street vendor’s trading location is at the mall/office/school/mosque/ in Pancasila square and they are selling in the sidewalk at the edge of the Pancasila square;their distribution pattern is agglomeration; they are more settle; their activities (type of food/beverage,accessories, clothing, grocery, cigarettes, and their facilities are tent, wagon, carpet, table/rack; the time ofstreet vendors trading is following the formal activities of the region; goals and motivations of visitor’s vendorsis that most of them are visiting street vendors, and the motivational visits are to buy food/drinks and othertypes of merchandise.

  6. Your Radiologist Explains Magnetic Resonance Angiography (MRA)

    Medline Plus

    Full Text Available ... is National Prostate Cancer Awareness Month Recently posted: Medical Imaging Costs Magnetoencephalography (MEG) Video: Coronary CT Angiography Video: ... is National Prostate Cancer Awareness Month Recently posted: Medical Imaging Costs Magnetoencephalography (MEG) Video: Coronary CT Angiography Video: ...

  7. Your Radiologist Explains Magnetic Resonance Angiography (MRA)

    Medline Plus

    Full Text Available ... CT Angiography Video: Myelography Video: CT of the Heart Video: Radioiodine I-131 Therapy Radiology and You ... CT Angiography Video: Myelography Video: CT of the Heart Video: Radioiodine I-131 Therapy Radiology and You ...

  8. What Is Adolescence?: Adolescents Narrate Their Lives in Lima, Peru

    Science.gov (United States)

    Bayer, Angela M.; Gilman, Robert H.; Tsui, Amy O.; Hindin, Michelle J.

    2010-01-01

    This study explores the lives of Peruvian adolescents in a low-income human settlement outside of Lima. Twenty 12-17 year olds were asked to narrate their own life stories using the life history narrative research method. Holistic content analysis was coupled with a grounded-theory approach to explore these data. Intergenerational responsibility,…

  9. Reappearance of Aedes aegypti (Diptera: Culicidae) in Lima, Peru.

    Science.gov (United States)

    Andrade, C S; Cáceres, A G; Vaquerizo, A; Ibañez-Bernal, S; Cachay, L S

    2001-07-01

    We report here the reappearance of Aedes aegypti in the Rimac district, and summarize the history of this mosquito species in Peru since its first detection in 1852. On March 17 2000 were found Ae. aegypti and Culex quinquefasciatus in Mariscal Castilla town, Flor de Amancaes, San Juan de Amancaes, El Altillo and Santa Rosa in the Rimac district, Lima Province.

  10. Reappearance of Aedes aegypti (Diptera: Culicidae) in Lima, Peru

    OpenAIRE

    Carlos Sevilla Andrade; Cáceres,Abraham G; Aldo Vaquerizo; Sergio Ibañez-Bernal; Lourdes Sulca Cachay

    2001-01-01

    We report here the reappearence of Aedes aegypti in the Rimac district, and summarize the history of this mosquito species in Peru since its first detection in 1852. On March 17 2000 were found Ae. aegypti and Culex quinquefasciatus in Mariscal Castilla town, Flor de Amancaes, San Juan de Amancaes, El Altillo and Santa Rosa in the Rimac district, Lima Province.

  11. Reappearance of Aedes aegypti (Diptera: Culicidae in Lima, Peru

    Directory of Open Access Journals (Sweden)

    Carlos Sevilla Andrade

    2001-07-01

    Full Text Available We report here the reappearence of Aedes aegypti in the Rimac district, and summarize the history of this mosquito species in Peru since its first detection in 1852. On March 17 2000 were found Ae. aegypti and Culex quinquefasciatus in Mariscal Castilla town, Flor de Amancaes, San Juan de Amancaes, El Altillo and Santa Rosa in the Rimac district, Lima Province.

  12. 2D-phase contrast flow evaluation and contrast-enhanced MR angiography for perioperative assessment of internal mammary artery grafts; 2D-Phasenkontrast-Flussquantifizierung und kontrastangehobene 3D-MR-Angiographie zur perioperativen Untersuchung des Arteriamammaria-interna-Bypasses

    Energy Technology Data Exchange (ETDEWEB)

    Stauder, N.I.; Miller, S.; Brechtel, K.; Hahn, U.; Kramer, U.; Duda, S.H.; Claussen, C.D. [Tuebingen Univ. (Germany). Abt. fuer Radiologische Diagnostik; Scheule, A.M.; Eckstein, F.S. [Tuebingen Univ. (Germany). Abt. fuer Thorax-, und Herz-Gefaesschirurgie

    2001-09-01

    Purpose: To evaluate LV functional parameters, graft flow and patency in patients with IMA grafts using a combined MR protocol with phase-contrast technique and contrast enhanced MR angiography. Material and Methods: Using a 1.5 T MR system 27 patients with 27 left internal mammary artery (LIMA) and 41 venous grafts were examined before and 6 months after CABG surgery. A T{sub 1}w-TSE sequence (slice thickness 5 mm) was applied for morphological imaging. LV function (EF, CO) was evaluated on cine images (segmented FLASH 2D, TR{sub eff} 11 ms, TE 4.8 ms, flip angle 25 ). A phase-contrast FLASH 2D (TR 24 ms, TE 5 ms, flip angle 20 ) sequence was applied for aortic and IMA flow measurements. Postoperatively, a contrast enhanced FLASH 3D MR angiography (TR 3.8 ms, TE 1.4 ms, flip angle 30 ) with 25 ml Gd-DTPA was performed to assess bypass patency. Results: In patients with reduced LV function (ejection fraction <50%) an improvement of the ejection fraction from 38.4{+-}10.3% to 49.8{+-}15.3% (p<0.05) was found postoperatively. LIMA grafts were occluded in 1/27 patients, while 6/41 venous grafts were occluded. Distal LIMA anastomoses were demonstrated in 33% by MRA. Flow of LIMA decreased from 21.2{+-}11 ml/min/m{sup 2} preoperatively to 14.4{+-}9.6 ml/min/m{sup 2} postoperatively (p<0.01). Conclusion: MR imaging allows accurate combined assessment of LV function, bypass patency and flow. The protocol of this study may be applicable for perioperative follow-up studies in patients after CABG surgery. (orig.) [German] Ziel: Evaluation eines MR-Protokolls zur perioperativen Untersuchung des A.-mammaria-interna(IMA)-Bypasses mit Kombination der 2D-Phasenkontrasttechnik und kontrastangehobener 3D-MR-Angiographie mit gleichzeitiger Bestimmung linksventrikulaerer (LV) Funktionsparameter. Material und Methoden: 27 Patienten mit 27/41 linksseitigen IMA (LIMA)/venoesen Bypasses wurden prae- und 6 Monate postoperativ untersucht. Nach morphologischer Darstellung des Mediastinums

  13. p53 mediates the suppression of cancer cell invasion by inducing LIMA1/EPLIN.

    Science.gov (United States)

    Ohashi, Tomoko; Idogawa, Masashi; Sasaki, Yasushi; Tokino, Takashi

    2017-04-01

    The tumor suppressor gene p53 is frequently mutated in human cancer. p53 executes various functions, such as apoptosis induction and cell cycle arrest, by modulating transcriptional regulation. In this study, LIM domain and Actin-binding protein 1 (LIMA1) was identified as a target of the p53 family using a cDNA microarray. We also evaluated genome-wide occupancy of the p53 protein by performing chromatin immunoprecipitation-sequencing (ChIP-seq) and identified two p53 response elements in the LIMA1 gene. LIMA1 protein levels were increased by treatment with nutlin-3a, a small molecule that activates endogenous p53. In addition, LIMA1 expression was significantly downregulated in cancers compared with normal tissues. Knockdown of LIMA1 significantly enhanced cancer cell invasion and partially inhibited p53-induced suppression of cell invasion. Furthermore, low expression of LIMA1 in cancer patients correlated with decreased survival and poor prognosis. Thus, p53-induced LIMA1 inhibits cell invasion, and the downregulation of LIMA1 caused by p53 mutation results in decreased survival in cancer patients. Collectively, this study reveals the molecular mechanism of LIMA1 downregulation in various cancers and suggests that LIMA1 may be a novel prognostic predictor and a therapeutic target for cancer.

  14. FUENTES DE RESILIENCIA EN ESTUDIANTES DE LIMA Y AREQUIPA/ SOURCES OF RESILIENCE IN STUDENTS FROM LIMA AND AREQUIPA

    Directory of Open Access Journals (Sweden)

    Naomi Erika Peña Flores*

    2009-05-01

    Full Text Available Resumen:El presente estudio tiene como objetivos generales identificar y comparar los niveles de Fuentes de Resiliencia que posee un grupo de estudiantes entre 9 y 11 años de edad de colegios nacionales de la ciudad de Lima y la ciudad de Arequipa. La muestra estuvo conformada por 652 estudiantes, 311 de la ciudad de Lima y 341 de la ciudad de Arequipa, de los cuales 332 eran varones y 320 mujeres; el muestreo utilizado fue intencional. Se utilizó el instrumento Inventario de Fuentes de Resiliencia construido y validado por Peña en el 2008. Los datos fueron analizados mediante la distribución de frecuencia, la media aritmética (x, la desviación estándar (DS y la prueba U Mann-Whitney. Entre los principales resultados no encontramos diferencias estadísticamente significativas en las fuentes de resiliencia entre los grupos de Lima y Arequipa; por otro lado, sí encontramos diferencias significativas en las fuentes de resiliencia entre los grupos de varones y mujeres. Finalmente las implicancias del estudio han sido discutidas.AbstractThe present study has as general aims identify and compare the levels of the Sources of Resilience of a group between 9 and 11 years old of public schools from Lima and Arequipa. The sample was intentional. The instrument used was The Inventory of Resilience's sources constructed and validated by Peña in 2008. the results were analyzed through the distribution of frecuency, the arithmetic mean (x, the standard deviation and theUMann-Whitney test.Amongthe principal results, we didn't find statistically significant differences in the levels of resilience's sources between groups from Lima and from Arequipa, and we found significant differences in levels of resilience's sources between the groups of males and women. The implications of the study have beendiscussed.

  15. Hopf Bifurcation Analysis of a Predator-Prey Biological Economic System with Nonselective Harvesting

    OpenAIRE

    Biwen Li; Zhenwei Li; Boshan Chen; Gan Wang

    2015-01-01

    A modified predator-prey biological economic system with nonselective harvesting is investigated. An important mathematical feature of the system is that the economic profit on the predator-prey system is investigated from an economic perspective. By using the local parameterization method and Hopf bifurcation theorem, we analyze the Hopf bifurcation of the proposed system. In addition, the modified model enriches the database for the predator-prey biological economic system. Finally, numeric...

  16. Reaching Hard-to-Reach Individuals: Nonselective Versus Targeted Outbreak Response Vaccination for Measles

    OpenAIRE

    2013-01-01

    Current mass vaccination campaigns in measles outbreak response are nonselective with respect to the immune status of individuals. However, the heterogeneity in immunity, due to previous vaccination coverage or infection, may lead to potential bias of such campaigns toward those with previous high access to vaccination and may result in a lower-than-expected effective impact. During the 2010 measles outbreak in Malawi, only 3 of the 8 districts where vaccination occurred achieved a measureabl...

  17. Presencia del Triatoma infestans en la ciudad de Lima

    Directory of Open Access Journals (Sweden)

    Abelardo Tejada

    1958-12-01

    Full Text Available 1 . Ha sido descubierto un foco del Triatoma infestans dentro de la zona urbana de la ciudad de Lima, verificándose su presencia en 10 viviendas de un modesto barrio. En tales casas fueron capturados un total de 99 especímenes del referido insecto, entre adultos y ninfas, así como 148 huevos sin eclosionar. 2. El examen del contenido intestinal y las heces en 68 de los triatomas capturados fue negativo para Trypanosoma cruzi. 3. Se supone que este nuevo foco se haya originado a partir de la región Sur del Perú, donde existen muchas localidades infestadas por el T. infestans. 4. Esta sería la primera vez que se verifica la presencia del T. infestans en la ciudad de Lima.

  18. Social support in people, that live with HIV in Lima

    OpenAIRE

    2012-01-01

    This research studies the social support in a group of adult persons with HIV: 14 women and 41 men between 18 and 58 years of age, from medium- low social economic status that appeal to state health centers, non government entities and mutual support groups of Lima. The resultsof perceived social support, effective social support, social support satisfaction and social support need ha ve been correlated with variables age, sex, diagnostic time, presence of symptoms associated lo H!V, particip...

  19. Terrestrial reptiles from San Lorenzo Island, Lima, Peru

    Directory of Open Access Journals (Sweden)

    José Pérez Z.

    2015-04-01

    Full Text Available We report four species of terrestrial reptiles, a geckonid (Phyllodactlus cf. microphyllus, two lizards (Microlophus peruvianus and M. tigris and one snake (Pseudalsophis elegans from San Lorenzo island, Departament of Lima, Peru. Herein, we report the first record of “Loma’s lizard” M. tigris and the snake P. elegans in Peruvian islands. The presence of Lomas herbaceous and the considerable extent of San Lorenzo island can explain the relatively high species richness of terrestrial reptiles on the island.

  20. Intestinal helminthes of schoolchildren of Chorrillos and Pachacamac, Lima, Peru

    OpenAIRE

    Iannacone, J.; Alvariño, L.

    2007-01-01

    In Peru, intestinal helminthiases have been widely studied, because they are a very frequent problem in Public Health. The aim of current research was to determinate prevalence of infection of enteroparasites in primary schoolchildren of two national schools, both of rural zones from Pachacamac and Chorrillos district, Lima, Peru during 1999. A coproparasitological survey to 162 childrens (3 per child on consecutive days) in stool samples fixed in 10 % formaline, previous homogeni...

  1. INDICATORS OF SOCIAL NETWORK ADDICTION IN COLLEGE STUDENTS FROM LIMA

    OpenAIRE

    Araujo Robles, Elizabeth Dany

    2016-01-01

    The study was conducted on 200 students from a private university in Lima (150 female), who belong to four academic programs: Psychology, Administration and International Business, Pharmacy and Biochemistry, and Obstetrics. The objective of the study is to assess the intensity of three social network addiction dimensions: obsession for social networking, lack of personal control about using social networks, and excessive use of social networks. The Social Networking Addiction Questionnaire fr...

  2. Reading literacy intervention with fifth graders in Lima

    OpenAIRE

    Morales Silva, Silvia; Verhoeven, Ludo; Leeuwe, Jan

    2012-01-01

    This study examined the effects of the reading comprehension program Lectura for fifth graders of middle-class and low-class social economic backgrounds in Lima (Peru) on read­ing literacy and reading motivation. The intervention emphasized reading strategies and dimensions of reading motivation. ANOVA was used in order to calculate the effects of measurement point, group, social economic status and gender on reading comprehension and reading motivation. Results showed that reading literacy i...

  3. Maitotoxin activates a nonselective cation channel and stimulates Ca2+ entry in MDCK renal epithelial cells.

    Science.gov (United States)

    Dietl, P; Völkl, H

    1994-02-01

    We examined the mechanisms of maitotoxin (MTX), a water-soluble polyether from the marine dinoflagellate Gambierdiscus toxicus, in stimulation of Ca2+ entry into Mardin-Darby canine kidney cells. In the presence of bath Ca2+, MTX (3 nM) caused an elevation of the intracellular calcium concentration ([Ca2+]i), which was partially inhibited by SK&F 96365 (25 microM) or La3+ (100 microM). A stimulation of Ca(2+)-dependent K+ channels in cell-attached membrane patches coincided with this rise in [Ca2+]i and was also partially inhibited by SK&F 96365. Before the rise in [Ca2+]i, a nonselective cation current (Ins), studied by the whole-cell patch-clamp technique, was irreversibly activated. Ins poorly discriminated between Na+, K+, and Cs+, was unaffected by replacement of Cl- with gluconate-, and was not voltage gated. MTX-induced Ins was partially blocked by La3+ ions (100 microM) but not by SK&F 96365 (25 microM) or nifedipine (10 microM). SK&F 96365 by itself induced a small but significant stimulation of Ins and a rise in [Ca2+]i. The activation of Ins by MTX was instantaneous and depended on the presence of extracellular Ca2+ ions. In the absence of other cations, the inward current of Ins was dependent on the bath Ca2+ concentration. Cell-attached and excised single-channel measurements revealed that MTX activated a SK&F 96365-insensitive, approximately 40-pS, nonselective cation channel from the outside. We conclude that the initial action of MTX is the stimulation of a nonselective cation channel, which requires the presence of extracellular Ca2+ ions. The subsequent rise in [Ca2+]i is at least in part caused by another, SK&F 96365-sensitive, Ca2+ entry pathway, which may be activated as a result of or independently of Ins.

  4. How to sell successfully a perfume in the non-selective market?

    OpenAIRE

    Ramalho, Maria Rita Pinto Coelho de Magalhães

    2009-01-01

    A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics This document presents a market research on the positioning of perfumes in the non selective market. This project’s main goal had been to analyze the challenge of “successfully selling a perfume in the non-selective market” in order to propose potential solutions. To address this marketing problem, an exploratory research had been c...

  5. Spiral CT angiography of renal arteries: comparison with angiography

    Energy Technology Data Exchange (ETDEWEB)

    Wittenberg, G.; Kenn, W.; Tschammler, A.; Sandstede, J.; Hahn, D. [Inst. fuer Roentgendiagnostik der Universitaet Wuerzburg (Germany)

    1999-04-01

    A prospective study was carried out to determine the accuracy of spiral CT angiography (CTA) in the detection of renal artery stenosis (RAS). Eighty-two patients with arterial hypertension underwent CTA and digital subtraction angiography (DSA) to exclude RAS. For CTA a contrast medium bolus of 100-150 ml (flow rate 3 ml/s) was injected. A 24 or 40 s CTA was started at the origin of the superior mesenteric artery after a delay time determined by test bolus injection (collimation = 2 mm, pitch = 1/1.5). For stenosis detection transverse images supported by maximum intensity projections (MIP) or multiplanar reconstruction projections were used. Of 197 renal arteries examined (including 33 accessory arteries), 34 RAS were visualized using DSA. With CTA, one hemodynamic RAS was missed and one additional hemodynamic RAS was found. Sensitivity/specificity was calculated to be 94 %/98 %. For hemodynamically relevant RAS (> 50 %) the sensitivity/specificity was 96 %/99 %. CTA additionally depicted five adrenal masses. The high accuracy rate of RAS detection thus allows the use of CTA as a screening method in patients with arterial hypertension to exclude a renovascular cause. (orig.) With 2 figs., 1 tab., 25 refs.

  6. Reaching hard-to-reach individuals: Nonselective versus targeted outbreak response vaccination for measles.

    Science.gov (United States)

    Minetti, Andrea; Hurtado, Northan; Grais, Rebecca F; Ferrari, Matthew

    2014-01-15

    Current mass vaccination campaigns in measles outbreak response are nonselective with respect to the immune status of individuals. However, the heterogeneity in immunity, due to previous vaccination coverage or infection, may lead to potential bias of such campaigns toward those with previous high access to vaccination and may result in a lower-than-expected effective impact. During the 2010 measles outbreak in Malawi, only 3 of the 8 districts where vaccination occurred achieved a measureable effective campaign impact (i.e., a reduction in measles cases in the targeted age groups greater than that observed in nonvaccinated districts). Simulation models suggest that selective campaigns targeting hard-to-reach individuals are of greater benefit, particularly in highly vaccinated populations, even for low target coverage and with late implementation. However, the choice between targeted and nonselective campaigns should be context specific, achieving a reasonable balance of feasibility, cost, and expected impact. In addition, it is critical to develop operational strategies to identify and target hard-to-reach individuals.

  7. Lima, la tres veces descoronada por la prosa de sus poetas’

    OpenAIRE

    Rebaza-Soraluz, Luis Alberto

    2015-01-01

    Introduction to Paulo Cesar Peña's book '1945: Jorge Eduardo Eielson, vida y canción en Lima'. The introduction discusses the importance of this book within the study of Eielson and its relationship with a modern analytical tradition that has produced three key essays on Lima written by three of her poets during the 20th century.

  8. Induction of indirect defence against spider-mites in uninfested lima bean leaves.

    NARCIS (Netherlands)

    Takabayashi, J.; Dicke, M.; Posthumus, M.A.

    1991-01-01

    Headspace analyses of uninfested Lima bean (Phaseolus lunatus) leaves show an absence of or only trace amounts of the terpenoids (E)--ocimene and (E)-4,8-dimethyl-1,3,7-nonatriene. Upon infestation by two-spotted spider-mites (Tetranychus urticae), Lima bean leaves produce (E)--ocimene and

  9. Ondate in successione. Per un barocco americano: Lezama Lima e l’avventura dell’immaginario

    Directory of Open Access Journals (Sweden)

    Francesco Varanini

    2012-05-01

    Full Text Available Ondate in successione. Per un barocco americano: Lezama Lima e l’avventura dell’immaginario (Nota a: Lezama Lima, Paradiso, a cura di C. Vitier, Colección Archivos, ALLCA, Madrid, 1988; trad. it. a cura di G. Felici, Torino, Einaudi, 1995

  10. Transient cortical blindness after coronary artery angiography.

    Science.gov (United States)

    Terlecki, Michał; Wojciechowska, Wiktoria; Rajzer, Marek; Jurczyszyn, Artur; Bazan-Socha, Stanisława; Bryniarski, Leszek; Czarnecka, Danuta

    2013-01-01

    Coronary angiography is the current gold standard for the diagnosis of ischemic heart disease and therefore the prevalence of percutaneous coronary procedures such as angiography and angioplasty is high. The occurrence of cerebral complications after coronary angiography and coronary angioplasty is low and it mainly includes transient ischemic attack and stroke. The prevalence of transient cortical blindness after X-ray contrast media is low and it is usually seen after cerebral angiography. Until now only a few cases of transient cortical blindness have been described after coronary artery angiography. Regarding the spread of coronary angiography worldwide and in Poland this complication is uniquely rare. A 32-year-old man with multiple extrasystolic ventricular arrhythmia suggesting Brugada syndrome diagnosis according to morphology of the left bundle branch block and with decreased left ventricular ejection fraction was admitted to the First Department of Cardiology and Hypertension, Medical College of the Jagiellonian University in Krakow. Coronary angiography was performed in order to exclude ischemic etiology of the observed abnormalities. No arteriosclerotic lesions were found in coronary arteries. Transient cortical blindness was observed directly after angiography which may have been caused by the neurotoxic effect of the used X-ray contrast medium. In ophthalmologic and neurologic examination as well as in the cerebral computed tomography scan no pathologies were found. Visual impairment disappeared totally within several hours.

  11. Hyperpolarized 13C MR angiography

    DEFF Research Database (Denmark)

    Lipsø, Hans Kasper Wigh; Magnusson, Peter; Ardenkjær-Larsen, Jan Henrik

    2016-01-01

    in the rat, and compare the performance of two standard angiographic pulse sequences, the gradient echo (GRE) sequence and the balanced steady-state free precession (bSSFP). 2D coronal cerebral angiographies using intra-arterial injections were acquired with a GRE sequence with in-plane resolution of 0.27 mm...... and matrix size 256x128, and 2D coronal cerebral angiographies were acquired with a bSSFP sequence with in-plane resolution of 0.55 mm and matrix size 128x64. The bSSFP sequence provides higher SNR in phantoms than the GRE sequence. Similarly, intravenous injections are imaged with higher SNR with the b......SSFP sequence, where the signal destruction of the GRE sequence is avoided. However, for intra-arterial injections, the bSSFP sequence results in strong artefacts, and the GRE sequence is preferred. Hyperpolarized MRA presents many challenges and cannot currently compete with conventional contrast enhanced MRA...

  12. MR angiography in abdominal neoplasms

    Energy Technology Data Exchange (ETDEWEB)

    Squillaci, E. [Dept. of Radiology, Rome-2 Univ., Hospital S. Eugenio, Rome (Italy); Crecco, M. [Dept. of Radiology, Cancer Research Inst. (Regina Elena), Rome (Italy); Grandinetti, M.L. [Dept. of Radiology, Cancer Research Inst. (Regina Elena), Rome (Italy); Maspes, F. [Dept. of Radiology, Rome-2 Univ., Hospital S. Eugenio, Rome (Italy); Lo Presti, G. [Dept. of Radiology, Rome-2 Univ., Hospital S. Eugenio, Rome (Italy); Squillaci, S. [Dept. of Radiology, Cancer Research Inst. (Regina Elena), Rome (Italy); Simonetti, G. [Dept. of Radiology, Rome-2 Univ., Hospital S. Eugenio, Rome (Italy)

    1994-10-01

    The role of magnetic resonance angiography (MRA) in the evaluation of vascular involvement was studied in 55 patients with abdominal neoplasms. A 2-D time-of-flight (TOF) technique was used in all patients. All patients underwent CT and MR examinations before MRA. Also, MR angiograms were compared with digital subtraction angiography in 22 cases, with Doppler US in 13 cases, and with surgical findings in 20 cases. In all patients with liver neoplasms (n=29) MRA demonstrated the absence of flow in the infiltrated segments. Pericapsular neovascularization was observed in 12 patients. Portal vein involvement was correctly detected in 27 patients. In all cases MRA demonstrated in relationship between the tumor and venous structures. Portosystemic shunts were visualized in 20 of 21 patients with portal hypertension. Vena cava thrombosis (3 cases), compression (5 cases), and displacement (2 cases) were correctly demonstrated. In renal (n=6) and adrenal gland (n=3) tumors renal vein compression was correctly detected in 2 cases, displacement in 1 case, and thrombosis in 3 cases, with only 1 false-positive finding. In 7 patients with pancreatic tumors MRA demonstrated splenic vein thrombosis in 2 cases and compression in 2 cases, with one false-positive finding. Our results indicate that MRA provides precise information regarding venous vascular involvement in abdominal neoplasms, but preoperative arterial mapping is still problematic. (orig.)

  13. Relaxation response in femoral angiography.

    Science.gov (United States)

    Mandle, C L; Domar, A D; Harrington, D P; Leserman, J; Bozadjian, E M; Friedman, R; Benson, H

    1990-03-01

    Immediately before they underwent femoral angiography, 45 patients were given one of three types of audiotapes: a relaxation response tape recorded for this study, a tape of contemporary instrumental music, or a blank tape. All patients were instructed to listen to their audiotape during the entire angiographic procedure. Each audiotape was played through earphones. Radiologists were not told the group assignment or tape contents. The patients given the audiotape with instructions to elicit the relaxation response (n = 15) experienced significantly less anxiety (P less than .05) and pain (P less than .001) during the procedure, were observed by radiology nurses to exhibit significantly less pain (P less than .001) and anxiety (P less than .001), and requested significantly less fentanyl citrate (P less than .01) and diazepam (P less than .01) than patients given either the music (n = 14) or the blank (n = 16) control audiotapes. Elicitation of the relaxation response is a simple, inexpensive, efficacious, and practical method to reduce pain, anxiety, and medication during femoral angiography and may be useful in other invasive procedures.

  14. Mejoramiento de la competitividad en Lima Norte con la reducción del caos vehicular, implementando un terminal terrestre interprovincial con interconexión vial futura al metro de Lima y corredor complementario

    OpenAIRE

    Avila Nuñez, Guiselle Melissa; Castañeda Del Castillo, Luis Fernando; Minaya Rosario, Carlos Danilo; Orihuela Aguilar, Overton Christian

    2017-01-01

    Propone mejorar la competitividad de la zona de Lima Norte como parte de Lima Metropolitana, con la construcción de un Terminal Terrestre al norte de la ciudad de Lima ubicado en el distrito de Puente Piedra. Teniendo como función principal la restricción del transporte de los buses interprovinciales por Lima Centro y a la vez descongestionar la zona de Lima Norte en las denominadas horas puntas por las mañanas y las noches, desde la zona del distrito de Puente Piedra hasta la Av. Eduardo de...

  15. PEMBERIAN MAKANAN TAMBAHAN UNTUK PEMULIHAN (PMTP ANAK BALITA GIZI BURUK: Studi Kasus di Lima Desa di Lima Propinsi

    Directory of Open Access Journals (Sweden)

    Herman Sudiman

    2012-11-01

    Full Text Available Pemberian Makanan Tambahan untuk Pemulihan (PMTP anak balita gizi buruk merupakan salah satu kegiatan dalam  Usaha Perbaikan Gizi Keluarga (UPGK dan sebagai intervensi langsung dalam menanggulangi masalah KKP pada anak balita. Usaha yang memerlukan banyak biaya ini belum memberikan hasil seperti yang diharapkan terutama aspek pemulihannya, karena berbagai hambatan pengelolaan di lapangan. Telah dilakukan penelitian di lima desa pemenang lomba desa UPGK tahun 1982 di lima propinsi yaitu desa Subuk di Propinsi Bali, Cibogo di Jawa Barat, Wlahar di Jawa Tengah, Tlasih di Jawa Timur dan Koto Hilalang di Sumatera Barat dengan tujuan untuk mendapatkan gambaran pelaksanaan PMTP di desa-desa tersebut serta untuk mencari aspek-aspek positif yang mungkin dapat dilaksanakan di desa lain. Kriteria penerima PMTP berbeda untuk masing-masing desa, tetapi pada umumnya tidak hanya gizi buruk, tetapi juga gizi kurang dan gizi sedang, kecuali di Tlasih. Frekuensi penyelenggaraan PMTP di Subuk dan Tlasih adalah sekali seminggu, sementara di desa lain setiap hari. Macam makanan yang diberikan di desa Cibogo, Wlahar, Koto Hilalang dan Subuk adalah makanan lengkap yang terdiri dari nasi, lauk dan sayur-mayur, sementara itu di dua desa yang disebut belakangan disamping makan lengkap juga diberikan makanan kecil sementara di desa Tlasih PMTP diberikan dalam bentuk makanan kecil saja. Dari lima desa penelitian yang masih memmpunyai data BB anak balita penerima PMTP serta catatan lain yang berkaitan dengan pelaksanaan PMTP, yaitu desa Wlahar dan Koto Hilalang, didapat gambaran perbaikan keadaan gizi anak balita penerima PMTP secara mengesankan, walaupun hal ini bukan karena PMTP saja, mungkin merupakan efek gabungan dari PMTP, pendidikan gizi dan faktor-faktor lain seperti pelayanan kesehatan dan program pembangunan lainnya. Namun diduga pendidikan gizi kepada ibu penerima PMTP merupakan faktor penting dalam mempengaruhi keberhasilan PMTP di daerah tersebut.

  16. Reducing cardiovascular risk factors in non-selected outpatients with schizophrenia

    DEFF Research Database (Denmark)

    Hansen, Mette Vinther; Hjorth, Peter; Kristiansen, Christina Blanner;

    2016-01-01

    glucose, serum lipids, and information on smoking and alcohol were obtained. Results: On average, small significant increases in body mass index (BMI) and waist circumferences were observed while small non-significant improvements in other cardiovascular risk factors were seen. Patients with high baseline......Objectives: Cardiovascular diseases are the most common causes of premature death in patients with schizophrenia. We aimed at reducing cardiovascular risk factors in non-selected outpatients with schizophrenia using methods proven effective in short-term trials. Furthermore, we examined whether any...... motivated to participate in the interventions, and it was difficult to monitor the recommended metabolic risk measures in the patient group. Future research should focus on simple strategies in health promotion that can be integrated into routine care....

  17. [Characteristics of violence during teenage pregnancy in Lima, Peru].

    Science.gov (United States)

    Contreras-Pulache, Hans; Mori-Quispe, Elizabeth; Hinostroza-Camposano, Willy D; Yancachajlla-Apaza, Maribel; Lam-Figueroa, Nelly; Chacón-Torrico, Horacio

    2013-07-01

    To determine the characteristics of violence seen in pregnant teenagers who were treated at the Instituto Nacional Materno Perinatal (INMP) in Lima, Peru. A cross-sectional study was carried out by INMP between January and March, 2010 using a probabilistic and systematic sampling. The study unit comprises every hospitalized teenager who had just given birth and who lived in Lima. A semi-structured interview was conducted. History of violence was operationalized into: verbal violence (insults, ridicule, and humiliation), physical violence (arm pulling, hair pulling, pushes), direct aggression (slaps, kicking, burns) and sexual violence (sexual intercourse without consent). 292 teenage mothers aged 16,5 ± 1 in average took part in the study. 47.9% lived with their partners and 51.4% were single. In 97.3% of the cases, they got pregnant as a result of a conserted sexual relationship, while 2.7% got pregnant as a result of rape. 90.1% of teenage mothers reported not having planned the pregnancy. Conserning history of violence: 48.1% had had verbal violence, 17.1% physical violence, 8.2% direct aggression and 6.8% sexual violence. Violence during teenage pregnancy is not an isolated event; actually, it is rather common in any of its forms.

  18. Frequency of maternal and newborn birth outcomes, Lima, Peru, 2013.

    Directory of Open Access Journals (Sweden)

    Adriane Wynn

    Full Text Available This study describes the pregnancy and birth outcomes at two hospitals in Lima, Peru. The data collection and analysis is intended to inform patients, providers, and policy makers on Peru's progress toward achieving the Millennium Development Goals and to help set priorities for action and further research.Data were collected retrospectively from a sample of 237 women who delivered between December 2012 and September 2013 at the Instituto Nacional Materno Perinatal or the Hospital Nacional Arzobispo Loayza. The outcomes were recorded by a trained mid-wife through telephone interviews with patients and by review of hospital records. Associations between participant demographic characteristics and pregnancy outcomes were tested with Chi-squared, Fisher's exact, or Student's t-test.Over 37% of women experienced at least one maternal or perinatal complication, and the most frequent were hypertension/preeclampsia and macrosomia. The women in our sample had a cesarean section rate of 50.2%.Maternal and perinatal complications are not uncommon among women in the lower socioeconomic strata of Lima. Also, the high cesarean rate underpins the need for a more comprehensive understanding of the indications for cesarean section deliveries, which could help reduce the number of unnecessary procedures and preventable complications.

  19. Intestinal helminthes of schoolchildren of Chorrillos and Pachacamac, Lima, Peru

    Directory of Open Access Journals (Sweden)

    Iannacone, J.

    2007-01-01

    Full Text Available In Peru, intestinal helminthiases have been widely studied, because they are a very frequent problem in Public Health. The aim of current research was to determinate prevalence of infection of enteroparasites in primary schoolchildren of two national schools, both of rural zones from Pachacamac and Chorrillos district, Lima, Peru during 1999. A coproparasitological survey to 162 childrens (3 per child on consecutive days in stool samples fixed in 10 % formaline, previous homogenization employing conventional exams by direct microscopy dyed with lugol, and by spontaneous Tube Sedimentation technique were performed. In addition, the occurrence of eggs of Enterobius vermicularis was examined by adhesive cellotape anal swap method. Eight helminthes were diagnosed to Chorrillos (n=72 and Pachacamac (n=90: Diphyllobothrium pacificum (1.3%; 0%, Taenia sp. (0%; 1.1%, Hymenolepis nana (37.5%; 8.8%, Hymenolepis diminuta (8.3%; 0%, Ancylostoma duodenale Necator americanus (0%; 2.2%, Trichuris trichiura (9.7%; 6.6%, Ascaris lumbricoides(15.3%; 35.5%, y E. vermicularis (31.9%; 45.5%. Total prevalence of infection was 72.2% and 72.2% and polyparasitism was 25% and 22.2%, respectively. Jaccard index showed a 50 % and Sörensen index a 66.7% of similarity between helminthes of both districts. Programs of sanitary and environmental education and control campaigns of intestinal helminthes should be improved and implemented in Lima, Peru.

  20. Autosomal mutants of proton-exposed kidney cells display frequent loss of heterozygosity on nonselected chromosomes.

    Science.gov (United States)

    Grygoryev, Dmytro; Dan, Cristian; Gauny, Stacey; Eckelmann, Bradley; Ohlrich, Anna P; Connolly, Marissa; Lasarev, Michael; Grossi, Gianfranco; Kronenberg, Amy; Turker, Mitchell S

    2014-05-01

    High-energy protons found in the space environment can induce mutations and cancer, which are inextricably linked. We hypothesized that some mutants isolated from proton-exposed kidneys arose through a genome-wide incident that causes loss of heterozygosity (LOH)-generating mutations on multiple chromosomes (termed here genomic LOH). To test this hypothesis, we examined 11 pairs of nonselected chromosomes for LOH events in mutant cells isolated from the kidneys of mice exposed to 4 or 5 Gy of 1 GeV protons. The mutant kidney cells were selected for loss of expression of the chromosome 8-encoded Aprt gene. Genomic LOH events were also assessed in Aprt mutants isolated from isogenic cultured kidney epithelial cells exposed to 5 Gy of protons in vitro. Control groups were spontaneous Aprt mutants and clones isolated without selection from the proton-exposed kidneys or cultures. The in vivo results showed significant increases in genomic LOH events in the Aprt mutants from proton-exposed kidneys when compared with spontaneous Aprt mutants and when compared with nonmutant (i.e., nonselected) clones from the proton-exposed kidneys. A bias for LOH events affecting chromosome 14 was observed in the proton-induced Aprt mutants, though LOH for this chromosome did not confer increased radiation resistance. Genomic LOH events were observed in Aprt mutants isolated from proton-exposed cultured kidney cells; however the incidence was fivefold lower than in Aprt mutants isolated from exposed intact kidneys, suggesting a more permissive environment in the intact organ and/or the evolution of kidney clones prior to their isolation from the tissue. We conclude that proton exposure creates a subset of viable cells with LOH events on multiple chromosomes, that these cells form and persist in vivo, and that they can be isolated from an intact tissue by selection for a mutation on a single chromosome.

  1. Nonselective Blocking of the Sympathetic Nervous System Decreases Detrusor Overactivity in Spontaneously Hypertensive Rats

    Directory of Open Access Journals (Sweden)

    Chang-Shin Park

    2012-04-01

    Full Text Available The involuntary dual control systems of the autonomic nervous system (ANS in the bladder of awake spontaneously hypertensive rats (SHRs were investigated through simultaneous registrations of intravesical and intraabdominal pressures to observe detrusor overactivity (DO objectively as a core symptom of an overactive bladder. SHRs (n = 6 showed the features of overactive bladder syndrome during urodynamic study, especially DO during the filling phase. After injection of the nonselective sympathetic blocking agent labetalol, DO disappeared in 3 of 6 SHRs (50%. DO frequency decreased from 0.98 ± 0.22 min−1 to 0.28 ± 0.19 min−1 (p < 0.01, and DO pressure decreased from 3.82 ± 0.57 cm H2O to 1.90 ± 0.86 cm H2O (p < 0.05. This suggests that the DO originating from the overactive parasympathetic nervous system is attenuated by the nonselective blocking of the sympathetic nervous system. The detailed mechanism behind this result is still not known, but parasympathetic overactivity seems to require overactive sympathetic nervous system activity in a kind of balance between these two systems. These findings are consistent with recent clinical findings suggesting that patients with idiopathic overactive bladder may have ANS dysfunction, particularly a sympathetic dysfunction. The search for newer and better drugs than the current anticholinergic drugs as the mainstay for overactive bladder will be fueled by our research on these sympathetic mechanisms. Further studies of this principle are required.

  2. An Overview of the CNS-Pharmacodynamic Profiles of Nonselective and Selective GABA Agonists

    Directory of Open Access Journals (Sweden)

    Xia Chen

    2012-01-01

    Full Text Available Various 2,3 subtype selective partial GABA-A agonists are in development to treat anxiety disorders. These compounds are expected to be anxiolytic with fewer undesirable side effects, compared to nonselective GABA-A agonists like benzodiazepines. Several 2,3 subtype selective and nonselective GABA-A agonists have been examined in healthy volunteers, using a battery addressing different brain domains. Data from five placebo-controlled double-blind studies were pooled. Lorazepam 2 mg was the comparator in three studies. Three 2,3-selective GABAA agonists (i.e., TPA023, TPACMP2, SL65.1498, one 1-selective GABAA agonists (zolpidem, and another full agonist (alprazolam were examined. Pharmacological selectivity was assessed by determination of regression lines for the change from baseline of saccadic-peak-velocity- (ΔSPV- relative effect, relative to changes in different pharmacodynamic endpoints (ΔPD. SPV was chosen for its sensitivity to the anxiolysis of benzodiazepines. Slopes of the ΔSPV-ΔPD relations were consistently lower with the 2,3 selective GABA-A agonists than with lorazepam, indicating that their PD effects are less than their SPV-effects. The ΔSPV-ΔPD relations of lorazepam were comparable to alprazolam. Zolpidem showed relatively higher impairments in ΔPD relative to ΔSPV, but did not significantly differ from lorazepam. These PD results support the pharmacological selectivity of the 2,3-selective GABA-A agonists, implying an improved therapeutic window.

  3. Computed tomography versus invasive coronary angiography

    DEFF Research Database (Denmark)

    Napp, Adriane E; Haase, Robert; Laule, Michael

    2017-01-01

    OBJECTIVES: More than 3.5 million invasive coronary angiographies (ICA) are performed in Europe annually. Approximately 2 million of these invasive procedures might be reduced by noninvasive tests because no coronary intervention is performed. Computed tomography (CT) is the most accurate noninva...... angiography (ICA) is the reference standard for detection of CAD. • Noninvasive computed tomography angiography excludes CAD with high sensitivity. • CT may effectively reduce the approximately 2 million negative ICAs in Europe. • DISCHARGE addresses this hypothesis in patients with low...

  4. Image quality and diagnostic accuracy of unenhanced SSFP MR angiography compared with conventional contrast-enhanced MR angiography for the assessment of thoracic aortic diseases

    Energy Technology Data Exchange (ETDEWEB)

    Krishnam, Mayil S. [University of California, Cardiovascular and Thoracic Imaging, UCI Medical Center, Irvine, CA (United States); Tomasian, Anderanik; Malik, Sachin; Ruehm, Stefan G. [University of California at Los Angeles, Department of Radiological Sciences, Ronald Reagan Medical Center, Los Angeles, CA (United States); Desphande, Vibhas; Laub, Gerhard [Siemens Medical Solutions, Los Angeles, CA (United States)

    2010-06-15

    The purpose of this study was to determine the image quality and diagnostic accuracy of three-dimensional (3D) unenhanced steady state free precession (SSFP) magnetic resonance angiography (MRA) for the evaluation of thoracic aortic diseases. Fifty consecutive patients with known or suspected thoracic aortic disease underwent free-breathing ECG-gated unenhanced SSFP MRA with non-selective radiofrequency excitation and contrast-enhanced (CE) MRA of the thorax at 1.5 T. Two readers independently evaluated the two datasets for image quality in the aortic root, ascending aorta, aortic arch, descending aorta, and origins of supra-aortic arteries, and for abnormal findings. Signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) were determined for both datasets. Sensitivity, specificity, and diagnostic accuracy of unenhanced SSFP MRA for the diagnosis of aortic abnormalities were determined. Abnormal aortic findings, including aneurysm (n = 47), coarctation (n = 14), dissection (n = 12), aortic graft (n = 6), intramural hematoma (n = 11), mural thrombus in the aortic arch (n = 1), and penetrating aortic ulcer (n = 9), were confidently detected on both datasets. Sensitivity, specificity, and diagnostic accuracy of SSFP MRA for the detection of aortic disease were 100% with CE-MRA serving as a reference standard. Image quality of the aortic root was significantly higher on SSFP MRA (P < 0.001) with no significant difference for other aortic segments (P > 0.05). SNR and CNR values were higher for all segments on SSFP MRA (P < 0.01). Our results suggest that free-breathing navigator-gated 3D SSFP MRA with non-selective radiofrequency excitation is a promising technique that provides high image quality and diagnostic accuracy for the assessment of thoracic aortic disease without the need for intravenous contrast material. (orig.)

  5. Your Radiologist Explains Magnetic Resonance Angiography (MRA)

    Medline Plus

    Full Text Available ... I-131 Therapy Radiology and You Sponsored by Image/Video Gallery Your Radiologist Explains Magnetic Resonance Angiography ( ... pictures of the major blood vessels throughout your body. It may be performed with or without contrast ...

  6. Your Radiologist Explains Magnetic Resonance Angiography (MRA)

    Medline Plus

    Full Text Available ... with you about magnetic resonance angiography, or as it’s commonly known, MRA. MRA is a noninvasive test ... of the major blood vessels throughout your body. It may be performed with or without contrast material ...

  7. Cardiac catheterization and angiography, 3d Ed

    Energy Technology Data Exchange (ETDEWEB)

    Grossman, W.

    1986-01-01

    This textbook was first published in 1974 and subsequently revised in 1980. The current edition, in seven parts and 33 chapters, has been extensively rewritten, and new chapters have been added that present recently developed techniques. The references have been updated to 1985. The purpose of this work is to provide a concise description of the major techniques employed in cardiac catheterization and angiography. Part 1 deals with the history, general principles, and practice of cardiac catheterization and angiography. In part 2, various techniques of cardiac catheterization are discussed and compared. In part 3, techniques for the determination of cardiac output, pressure, resistance, valve area, and shunt flow are described. Part 4 deals briefly with coronary angiography, cardiac ventriculography, pulmonary angiography, and aortography. In part 5, techniques for evaluating cardiac function and intracardiac electrophysiology are presented. The characteristic hemodynamic and angiographic abnormalities in specific disorders are described in part 6. Part 7 deals with special catheter techniques.

  8. Your Radiologist Explains Magnetic Resonance Angiography (MRA)

    Medline Plus

    Full Text Available ... is National Breast Cancer Awareness Month Recently posted: Medical Imaging Costs Magnetoencephalography (MEG) Video: Coronary CT Angiography ... home. Tell the radiologic technologist if you have medical devices implanted in your body as these can ...

  9. Your Radiologist Explains Magnetic Resonance Angiography (MRA)

    Medline Plus

    Full Text Available ... Recently posted: Medical Imaging Costs Magnetoencephalography (MEG) Video: Coronary CT Angiography Video: Myelography Video: CT of the Heart Video: Radioiodine I-131 Therapy November 8 is ...

  10. Your Radiologist Explains Magnetic Resonance Angiography (MRA)

    Medline Plus

    Full Text Available ... with you about magnetic resonance angiography, or as it’s commonly known, MRA. MRA is a noninvasive test ... of the major blood vessels throughout your body. It may be performed with or without contrast material ...

  11. Cyclo-oxygenase-2 inhibitors or nonselective NSAIDs plus gastroprotective agents: What to prescribe in daily clinical practice?

    NARCIS (Netherlands)

    G.M.C. Masclee (Gwen); V.E. Valkhoff (Vera); E.M. van Soest; R. Schade (René); G. Mazzaglia (Giampiero); M. Molokhia (Mariam); G. Trifiro (Gianluca); J.L. Goldstein; S. Hernández-Díaz (Sonia); E.J. Kuipers (Ernst); M.C.J.M. Sturkenboom (Miriam)

    2013-01-01

    textabstractBackground Two strategies for prevention of upper gastrointestinal (UGI) events for nonselective nonsteroidal anti-inflammatory drug (nsNSAID) users are replacement of the nsNSAID by a cyclo-oxygenase-2-selective inhibitor (coxib) or co-prescription of a gastroprotective agent (GPA). Aim

  12. Cyclo-oxygenase-2 inhibitors or nonselective NSAIDs plus gastroprotective agents: What to prescribe in daily clinical practice?

    NARCIS (Netherlands)

    G.M.C. Masclee (Gwen); V.E. Valkhoff (Vera); E.M. van Soest; R. Schade (René); G. Mazzaglia (Giampiero); M. Molokhia (Mariam); G. Trifiro (Gianluca); J.L. Goldstein; S. Hernández-Díaz (Sonia); E.J. Kuipers (Ernst); M.C.J.M. Sturkenboom (Miriam)

    2013-01-01

    textabstractBackground Two strategies for prevention of upper gastrointestinal (UGI) events for nonselective nonsteroidal anti-inflammatory drug (nsNSAID) users are replacement of the nsNSAID by a cyclo-oxygenase-2-selective inhibitor (coxib) or co-prescription of a gastroprotective agent (GPA). Aim

  13. Effects of Wood Ash Biomass Application on Growth Indices and Chlorophyll Content of Maize and Lima bean Intercrop

    Directory of Open Access Journals (Sweden)

    Rasheedat Ajala

    2017-07-01

    Full Text Available Wood ash generated from wood industries have enormous potential which can be utilized due to its properties which influences soil chemistry and fertility status of tropical acidic soils. Field experiments were conducted on an acidic sandy loam alfisol to investigate the effects of wood ash on the growth indices and chlorophyll content of maize and lima beans intercrop during the late and early seasons of 2014 and 2015 at Akure in the rainforest zone of southwestern Nigeria. The treatments were 100% sole maize with ash, 100% sole maize without ash, 75% maize + 25% lima beans with ash, 75% + 25% lima beans without ash, 50% maize + 50% lima beans with ash, 50% maize + 50% lima beans without ash, 25% maize + 75% lima beans with ash and 25% maize + 75% lima beans without ash. Wood ash was applied at 2.4kg/plot. Wood ash increased chlorophyll content in all amended treatments except in amended 25:75% maize-lima beans intercrop and 25:75% maize –lima beans intercrop without ash, however 75:25% maize-lima beans amended with wood ash significantly (P≥0.05 recorded the highest chlorophyll content. Growth parameters such as plant height, number of leaves, leaf area, leaf area index, leaf length, stem diameter, number of flowers, number of pods, weight of plant and total biomass of amended maize-lima beans intercrop were significantly (P≥0.05 increased by wood ash application. Based on experimental findings, 25:75% maize-lima beans intercrop and 75%:25% maize-lima beans intercrop amended with wood ash was concluded to be more recommendable in the study area.

  14. Barroco y modernidad: De Maravall a Lezama Lima

    Directory of Open Access Journals (Sweden)

    Edgardo Dobry

    2009-09-01

    Full Text Available During the '60s and '70s, various lines of discussion around Baroque that had started at the beginning of the 20th century converge. Both in Europe and in America, and from different disciplines -philology, literary essay, rhetoric, history, philosophy, psychoanalysis- Baroque is seen as a starting point of modern culture. In 1975, José Antonio Maravall publishes La cultura del Barroco defined as a historical concept in opposition to the eons theory and constants developed by Eugenio d'Ors. According to Maravall, Baroque links Spain to the dawning of modernity. Some years before, Cuban José Lezama Lima sees Baroque as the bridge that establishes a continuity between Spanish culture and American culture, leading it towards the future. Finally, in the Parisian '70s, Severo Sarduy introduces the concepts of baroque and neobaroque in the intellectual debates of the time. Our approach of the matter stands at the crossroad of these varied perspectives

  15. Depression in people, that live with HIV in Lima

    Directory of Open Access Journals (Sweden)

    Ninoshka Fasce Cayo

    2002-06-01

    Full Text Available The study investigates the depression in a group 55 adults (14 women and 41 men who live with VJH, between 18 and 58 years, oflow and medium low socioeconomic leve! which attend public health centers, NGO and mutual support groups (MSG of Lima. The Beck Depression Inventory was used to study the level of depression, as well as the five factors found in this population.The descriptive results were correlated with the following demographic variables: age,sex, time of diagnosis, the presence or absence of symptoms associated to VIH, the participationor not in a MSG, sexual orientation and sex. Results indicated that depression varies depending on whether the person belongs or not to a MSG, sex and sexual orientation.

  16. Social support in people, that live with HIV in Lima

    Directory of Open Access Journals (Sweden)

    Ninoshka Fasce Cayo

    2001-06-01

    Full Text Available This research studies the social support in a group of adult persons with HIV: 14 women and 41 men between 18 and 58 years of age, from medium- low social economic status that appeal to state health centers, non government entities and mutual support groups of Lima. The resultsof perceived social support, effective social support, social support satisfaction and social support need ha ve been correlated with variables age, sex, diagnostic time, presence of symptoms associated lo H!V, participation in a mutual support group, sex and sexual orientation(heterosexual males, men that have sex with other men and heterosexual women.The results showed that the social support indexes behaved differently according to weather they participated in a mutual support group or not, according to sex, according to sex and sexual orientation. Also, the need for social support rate varies according to diagnostic time.

  17. Reading literacy intervention with fifth graders in Lima

    Directory of Open Access Journals (Sweden)

    Silvia Morales Silva

    2009-06-01

    Full Text Available This study examined the effects of the reading comprehension program Lectura for fifth graders of middle-class and low-class social economic backgrounds in Lima (Peru on read­ing literacy and reading motivation. The intervention emphasized reading strategies and dimensions of reading motivation. ANOVA was used in order to calculate the effects of measurement point, group, social economic status and gender on reading comprehension and reading motivation. Results showed that reading literacy increased more in the interven­tion group than in the control group. Children from the low social economic background benefited more from the intervention than children with a middle social economic back­ground. The program had also a significant impact on children’s reading motivation.

  18. Deforestation and malaria in Mâncio Lima County, Brazil.

    Science.gov (United States)

    Olson, Sarah H; Gangnon, Ronald; Silveira, Guilherme Abbad; Patz, Jonathan A

    2010-07-01

    Malaria is the most prevalent vector-borne disease in the Amazon. We used malaria reports for health districts collected in 2006 by the Programa Nacional de Controle da Malaria to determine whether deforestation is associated with malaria incidence in the county (municipio) of Mancio Lima, Acre State, Brazil. Cumulative percent deforestation was calculated for the spatial catchment area of each health district by using 60 x 60-meter, resolution-classified imagery. Statistical associations were identified with univariate and multivariate general additive negative binomial models adjusted for spatial effects. Our cross-sectional study shows malaria incidence across health districts in 2006 is positively associated with greater changes in percentage of cumulative deforestation within respective health districts. After adjusting for access to care, health district size, and spatial trends, we show that a 4.2%, or 1 SD, change in deforestation from August 1997 through August 2001 is associated with a 48% increase of malaria incidence.

  19. Genomic saturation mutagenesis and polygenic analysis identify novel yeast genes affecting ethyl acetate production, a non-selectable polygenic trait

    Directory of Open Access Journals (Sweden)

    Tom Den Abt

    2016-03-01

    Full Text Available Isolation of mutants in populations of microorganisms has been a valuable tool in experimental genetics for decades. The main disadvantage, however, is the inability of isolating mutants in non-selectable polygenic traits. Most traits of organisms, however, are non-selectable and polygenic, including industrially important properties of microorganisms. The advent of powerful technologies for polygenic analysis of complex traits has allowed simultaneous identification of multiple causative mutations among many thousands of irrelevant mutations. We now show that this also applies to haploid strains of which the genome has been loaded with induced mutations so as to affect as many non-selectable, polygenic traits as possible. We have introduced about 900 mutations into single haploid yeast strains using multiple rounds of EMS mutagenesis, while maintaining the mating capacity required for genetic mapping. We screened the strains for defects in flavor production, an important non-selectable, polygenic trait in yeast alcoholic beverage production. A haploid strain with multiple induced mutations showing reduced ethyl acetate production in semi-anaerobic fermentation, was selected and the underlying quantitative trait loci (QTLs were mapped using pooled-segregant whole-genome sequence analysis after crossing with an unrelated haploid strain. Reciprocal hemizygosity analysis and allele exchange identified PMA1 and CEM1 as causative mutant alleles and TPS1 as a causative genetic background allele. The case of CEM1 revealed that relevant mutations without observable effect in the haploid strain with multiple induced mutations (in this case due to defective mitochondria can be identified by polygenic analysis as long as the mutations have an effect in part of the segregants (in this case those that regained fully functional mitochondria. Our results show that genomic saturation mutagenesis combined with complex trait polygenic analysis could be used

  20. Characteristics of the Nonselective Cation Current (NSCCs) in Rabbit Left Ventricular Epicardial, Midmyocardial and Endocardial Myocytes

    Institute of Scientific and Technical Information of China (English)

    Min Zong; Xinchun Yang; Xiulan Liu; Liang Shi; Taifeng Liu

    2007-01-01

    Recent studies have described regional differences in the electrophysiology and pharmacology of ventricular myocardium in canine,feline,rat,guinea pig,and human hearts.This has been shown to be due to a smaller IKs and a lager sodium-calcium exchange current (INa-Ca ) and late INa in M region (deep subepicardial to midmyocardial).Studies from our laboratory have found a new repolarization current-nonselective cation current (NSCCs) existing in rabbit right ventricular myocytes.Methods We examined the characteristics of NSCCs in epicardial,M region,and endocardial cells isolated from the rabbit left ventricle with standard microelectrode and whole-cell patch-clamp techniques.The permeability to Na+,K + ,Li + ,Cs + but not to Cl-indicating that it was a nonselective cation current.Gd3+ (0.1 mmol/1) and La3+ (0.1 mmol/1) can block the current markedly.Results Further characterization of NSCCs was significantly smaller in M cells than in epicardial and endocardial cells.NSCCs current density was significantly smaller in M cells than in epicardial and endocardial cells.With repolarization to-80 mV,INs current density was (-0.44 ±0.05) PA/PF in endocardial cells,(-0.12 ±0.05) PA/PF in M cells and (-0.28 ±0.07) PA/PF in epicardial cells;and with repolarization to + 30 mV,INs current density was ( 1.09 ± 0.29) PA/PF in endocardial cells,(0.38 ± 0.09) PA/PF in M cells and (0.91 ± 0.32) PA/PF in epicardial cells.Conclusions Transmural dispersion of repolarization was due to the heterogeneity of NSCCs in rabbit left ventricle epicardial,endocardial myocytes and M cells.These findings may advance our understanding of the ionic basis for our understanding of factors contributing to the development of cardiac arrhythmias.

  1. Redescription, lectotype designation and new records of Anastrepha luederwaldti Lima (Diptera, Tephritidae)

    Science.gov (United States)

    The previously poorly known species Anastrepha luederwaldti Lima, 1934 is redescribed based on a reexamination of the syntypes from São Paulo and additional specimens from Santa Catarina and Rio Grande do Sul, Brazil. A lectotype is designated....

  2. Redescription, lectotype designation and new records of Anastrepha luederwaldti Lima (Diptera, Tephritidae).

    Science.gov (United States)

    Uramoto, Keiko; Norrbom, Allen L; Zucchi, Roberto A

    2016-09-15

    The previously poorly known species Anastrepha luederwaldti Lima, 1934 is redescribed based on a reexamination of the syntypes from São Paulo and additional specimens from Santa Catarina and Rio Grande do Sul, Brazil. A lectotype is designated.

  3. Presencia de Campylobacter spp en canales y ciegos de pollos de engorde en Lima, Peru

    National Research Council Canada - National Science Library

    Lucas L., Juan; Vilca L., Miguel; Ramos D., Daphne

    2013-01-01

    El objetivo del trabajo fue determinar la presencia de Campylobacter spp en canales y ciegos de pollos de engorde comercializados en Lima Metropolitana a traves de tres centros de beneficio clandestino...

  4. De alimento a poesia: la identidad Cubana en Paradiso de Jose Lezama Lima

    National Research Council Canada - National Science Library

    Escobar-Trujillo, Maria Adelaida

    2012-01-01

    Partiendo de los estudios sobre lo cubano en Paradiso de Jose Lezama Lima, este trabajo busca contribuir al analisis de la transculturacion a traves del paisaje y la comida como imagenes que fundan...

  5. LA DANZA DE LO INVISIBLE: LA TEORÍA DE LA IMAGEN DE JOSÉ LEZAMA LIMA

    National Research Council Canada - National Science Library

    Alejandro Valenzuela Aldridge

    2017-01-01

    .... Through the concept of 'dance-image', the first part of the article explains how Lezama Lima managed to set himself apart from Western metaphysics in order to develop a new approach to reality...

  6. Antibiotic resistance among Helicobacter pylori clinical isolates in Lima, Peru

    Science.gov (United States)

    Boehnke, Kevin F; Valdivieso, Manuel; Bussalleu, Alejandro; Sexton, Rachael; Thompson, Kathryn C; Osorio, Soledad; Reyes, Italo Novoa; Crowley, John J; Baker, Laurence H; Xi, Chuanwu

    2017-01-01

    Objectives Gastric carcinoma is the most common cancer and cause of cancer mortality in Peru. Helicobacter pylori, a bacterium that colonizes the human stomach, is a Group 1 carcinogen due to its causal relationship to gastric carcinoma. While eradication of H. pylori can help prevent gastric cancer, characterizing regional antibiotic resistance patterns is necessary to determine targeted treatment for each region. Thus, we examined primary antibiotic resistance in clinical isolates of H. pylori in Lima, Peru. Materials and methods H. pylori strains were isolated from gastric biopsies of patients with histologically proven H. pylori infection. Primary antibiotic resistance among isolates was examined using E-test strips. Isolates were examined for the presence of the cagA pathogenicity island and the vacA m1/m2 alleles via polymerase chain reaction. Results Seventy-six isolates were recovered from gastric biopsies. Clinical isolates showed evidence of antibiotic resistance to 1 (27.6%, n=21/76), 2 (28.9%, n=22/76), or ≥3 antibiotics (40.8%). Of 76 isolates, eight (10.5%) were resistant to amoxicillin and clarithromycin, which are part of the standard triple therapy for H. pylori infection. No trends were seen between the presence of cagA, vacA m1, or vacA m2 and antibiotic resistance. Conclusion The rate of antibiotic resistance among H. pylori isolates in Lima, Peru, is higher than expected and presents cause for concern. To develop more targeted eradication therapies for H. pylori in Peru, more research is needed to better characterize antibiotic resistance among a larger number of clinical isolates prospectively. PMID:28331349

  7. Diagnostic yield and accuracy of CT angiography, MR angiography, and digital subtraction angiography for detection of macrovascular causes of intracerebral haemorrhage: prospective, multicentre cohort study

    OpenAIRE

    van Asch, Charlotte J. J.; Birgitta K Velthuis; Rinkel, Gabriël J E; Algra, Ale; de Kort, Gerard A. P.; Witkamp, Theo D.; de Ridder, Johanna C M; van Nieuwenhuizen, Koen M.; De Leeuw, Frank Erik; Schonewille, Wouter J.; de Kort, Paul L. M.; Dippel, Diederik W; Raaymakers, Theodora W M; Hofmeijer, Jeannette; Wermer, Marieke J. H.

    2015-01-01

    Study question What are the diagnostic yield and accuracy of early computed tomography (CT) angiography followed by magnetic resonance imaging/angiography (MRI/MRA) and digital subtraction angiography (DSA) in patients with non-traumatic intracerebral haemorrhage? Methods This prospective diagnostic study enrolled 298 adults (18-70 years) treated in 22 hospitals in the Netherlands over six years. CT angiography was performed within seven days of haemorrhage. If the result was negative, MRI/MR...

  8. The profile of health - oral disease and treatment of urban Lima 2012 seniors needs

    OpenAIRE

    Campodónico Reátegui, Carlos; Docente del Departamento Académico de stomatología Preventiva y Social de la Facultad de Odontología de la UNMSM; Chein Villacampa, Sylvia; Docente del Departamento Académico de stomatología Preventiva y Social de la Facultad de Odontología de la UNMSM; Benavente Lipa, Lourdes; Docente del Departamento Académico de stomatología Preventiva y Social de la Facultad de Odontología de la UNMSM; Vidal Goñi, Raúl; Docente del Departamento Académico de stomatología Preventiva y Social de la Facultad de Odontología de la UNMSM; Delgadillo Ávila, Juana Rosa; Docente del Departamento Académico de Ciencias Básicas de la Facultad de Odontología de la UNMSM; Álvarez Paúcar, María Angélica; Docente del Departamento Académico de Estomatología Pediátrica de la Facultad de Odontología de la UNMSM; Evaristo Chiyong, Teresa; Docente del Departamento Académico de Estomatología Preventiva y Social de la Facultad de Odontología de la UNMSM; Campodónico Morales, Carla; Cirujano Dentista. Estudios Segunda Especialización Unidad de Postgrado de la Facultad de Odontología de la UNMSM; Lara Téllez, Lourdes; Docente del Departamento Académico de Estomatología Rehabilitadora de la Facultad de Odontología de la UNMSM; Díaz Soriano, Ana María; Docente del Departamento Académico de Estomatología Preventiva y Social de la Facultad de Odontología de la UNMSM

    2014-01-01

    The main objective of this study was to determine the profile of oral health and disease of the elderly adults of urban Lima, taking into account the prevalence of dental caries, periodontal disease, oral mucosa injuries and treatment needs. Descriptive and transversal study was using over 120 elderly adults (over 60 years old), living in Lima center and district. Data collection was performed by the method of clinical observation and interview using rates and procedures of the WHO. The resul...

  9. Manuel Gomes de Lima Bezerra : o discurso ilustrado pela dignificação da cirurgia

    OpenAIRE

    Tavares, Pedro Vilas Boas

    2014-01-01

    The article offers a brief recollection of Manuel Gomes de Lima Bezerra’s actions pursuing the regeneration of medicine and surgery in Portugal in the 18th century, emphasizing one of the most important vectors of his enlightened «civic campaign»: the need for surgeons to be recognized by the State and to be –the more distinguished among them – generously paid. Key words: Manuel Gomes de Lima Bezerra? surgery in Portugal, 18th century.

  10. FIGURAÇÕES DA LOUCURA NA FICÇÃO DE LIMA BARRETO

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    Elizabeth Gonzaga de Lima

    2014-09-01

    Full Text Available The theme of the madness has been a fascinating mystery in many fields of knowledge. In the Brazilian literature, authors such as Machado de Assis and Lima Barreto used the insanity as fictional feedstock, but denouncing with an ironic and acidic verve the Brazilian scientific discourse. In view of this, the paper examines the figurations of the madness in Lima Barreto’s fiction from the trajectory of four characters: the grammarian Lobo, Policarpo Quaresma, Ismênia and Fernando.

  11. Computed tomography coronary angiography in patients with acute myocardial infarction and normal invasive coronary angiography

    NARCIS (Netherlands)

    Panayi, Georgios; Wieringa, Wouter G.; Alfredsson, Joakim; Carlsson, Jorg; Karlsson, Jan-Erik; Persson, Anders; Engvall, Jan; Pundziute, Gabija; Swahn, Eva

    2016-01-01

    Background: Three to five percent of patients with acute myocardial infarction (AMI) have normal coronary arteries on invasive coronary angiography (ICA). The aim of this study was to assess the presence and characteristics of atherosclerotic plaques on computed tomography coronary angiography

  12. Computed tomographic angiography or conventional coronary angiography in therapeutic decision-making

    NARCIS (Netherlands)

    Piers, Lieuwe H.; Dikkers, Riksta; Willems, Tineke P.; de Smet, Bart J. G. L.; Oudkerk, Matthijs; Zijlstra, Felix; Tio, Rene A.

    2008-01-01

    To evaluate non-invasive angiography using dual-source computed tomography (CT) for the determination of the most appropriate therapeutic strategy in patients with suspected coronary artery disease (CAD). CT angiography (Dual Source CT, Somatom Definition, Siemens Medical Systems, Forchheim, Germany

  13. Nonselective beta-blockers in cirrhotic patients with no or small varices: A meta-analysis.

    Science.gov (United States)

    Qi, Xing-Shun; Bao, Yong-Xin; Bai, Ming; Xu, Wen-Da; Dai, Jun-Na; Guo, Xiao-Zhong

    2015-03-14

    To explore effects of nonselective beta-blockers (NSBBs) in cirrhotic patients with no or small varices. The PubMed, EMBASE, Science Direct, and Cochrane library databases were searched for relevant papers. A meta-analysis was performed using ORs with 95%CI as the effect sizes. Subgroup analysis was conducted according to the studies including patients without varices and those with small varices. Overall, 784 papers were initially retrieved from the database searches, of which six randomized controlled trials were included in the meta-analysis. The incidences of large varices development (OR = 1.05, 95%CI: 0.25-4.36; P = 0.95), first upper gastrointestinal bleeding (OR = 0.59, 95%CI: 0.24-1.47; P = 0.26), and death (OR = 0.70, 95%CI: 0.45-1.10; P = 0.12) were similar between NSBB and placebo groups. However, the incidence of adverse events was significantly higher in the NSBB group compared with the placebo group (OR = 3.47, 95%CI: 1.45-8.33; P = 0.005). The results of subgroup analyses were similar to those of overall analyses. The results of this meta-analysis indicate that NSBBs should not be recommended for cirrhotic patients with no or small varices.

  14. The characteristics of action potential and nonselective cation current of cardiomyocytes in rabbit superior vena cava

    Institute of Scientific and Technical Information of China (English)

    WANG Pan; YANG XinChun; LIU XiuLan; BAO RongFeng; LIU TaiFeng

    2008-01-01

    As s special focus in initiating and maintaining atrial fibrillation (AF), cardiomyocytes in superior vena cavs (SVC) have distinctive electrophysiological characters. In this study, we found that comparing with the right atrial (RA) cardiomyoctyes, the SVC cardiomyoctyes had longer APD90 at the different basic cycle lengths; the conduction block could be observed on both RA and SVC cardiomyoctyes. A few of SVC cardiomyoctyes showed slow response action potentials with automatic activity and some others showed early afterdepolarization (EAD) spontaneously. Further more, we found that there are nonselective cation current (INs) in both SVC and RA cardiomyocytes. The peak density of INs in SVC cardiomyocytes was smaller than that in RA cardiomyocytes. Removal of extracellular divalent cation and glucose could increase INs in SVC cardiomyocytes. The agonist or the antagonist of INs may increase or decrease APD. To sum up, some SVC cardiomyocytes possess the ability of spontaneous activity; the difference of transmembrane action potentials between SVC and RA cardiomyocytes is partly because of the different density of INs between them; the agonist or the antagonist of INs can increase or decrease APD leading to the enhancement or reduction of EAD genesis in SVC cardiomyocytes. INs in rabbit myocytes is fairly similar to TRPC3 current in electrophysiological property, which might play an important role in the mechanisms of AF.

  15. Non-selective cation channels mediate chloroquine-induced relaxation in precontracted mouse airway smooth muscle.

    Directory of Open Access Journals (Sweden)

    Ting Zhang

    Full Text Available Bitter tastants can induce relaxation in precontracted airway smooth muscle by activating big-conductance potassium channels (BKs or by inactivating voltage-dependent L-type Ca2+ channels (VDLCCs. In this study, a new pathway for bitter tastant-induced relaxation was defined and investigated. We found nifedipine-insensitive and bitter tastant chloroquine-sensitive relaxation in epithelium-denuded mouse tracheal rings (TRs precontracted with acetylcholine (ACH. In the presence of nifedipine (10 µM, ACH induced cytosolic Ca2+ elevation and cell shortening in single airway smooth muscle cells (ASMCs, and these changes were inhibited by chloroquine. In TRs, ACH triggered a transient contraction under Ca2+-free conditions, and, following a restoration of Ca2+, a strong contraction occurred, which was inhibited by chloroquine. Moreover, the ACH-activated whole-cell and single channel currents of non-selective cation channels (NSCCs were blocked by chloroquine. Pyrazole 3 (Pyr3, an inhibitor of transient receptor potential C3 (TRPC3 channels, partially inhibited ACH-induced contraction, intracellular Ca2+ elevation, and NSCC currents. These results demonstrate that NSCCs play a role in bitter tastant-induced relaxation in precontracted airway smooth muscle.

  16. Changes in the Functional Properties of Three Starches by Interaction with Lima Bean Proteins

    Directory of Open Access Journals (Sweden)

    Alejandra Huerta-Abrego

    2010-01-01

    Full Text Available The functional properties of starches determine their potential applications in food systems. These properties depend largely on granular and molecular structure and can be physically, chemically or enzymatically modified. One way of modifying starch functional properties is by interaction with other food components, such as proteins. Starch-protein interactions are frequent in plant foods, particularly cereals and legumes, which are formed mainly of starches and proteins. An evaluation has been done of changes in the functional properties of three native starches (corn, Zea mays L.; cassava, Manihot esculenta; and lima bean, Phaseolus lunatus L. when blended with lima bean protein concentrate. The gelatinization temperature of each blend increased compared to its corresponding native starch. The cassava starch/lima bean protein blend had the highest overall swelling power and water absorption capacity values at all temperatures. Maximum viscosity for each blend was higher than for the corresponding native starches. The blends of lima bean protein with cassava and corn starches did not exhibit syneresis. The lima bean starch/lima bean protein blend had the highest gel firmness values, followed by the blends with corn and cassava starches. The protein-starch mixtures are an alternative in the improvement of the starch functional properties which are useful in the development of nutritional products.

  17. Cyanogenesis of Wild Lima Bean (Phaseolus lunatus L.) Is an Efficient Direct Defence in Nature

    Science.gov (United States)

    Ballhorn, Daniel J.; Kautz, Stefanie; Heil, Martin; Hegeman, Adrian D.

    2009-01-01

    In natural systems plants face a plethora of antagonists and thus have evolved multiple defence strategies. Lima bean (Phaseolus lunatus L.) is a model plant for studies of inducible indirect anti-herbivore defences including the production of volatile organic compounds (VOCs) and extrafloral nectar (EFN). In contrast, studies on direct chemical defence mechanisms as crucial components of lima beans' defence syndrome under natural conditions are nonexistent. In this study, we focus on the cyanogenic potential (HCNp; concentration of cyanogenic glycosides) as a crucial parameter determining lima beans' cyanogenesis, i.e. the release of toxic hydrogen cyanide from preformed precursors. Quantitative variability of cyanogenesis in a natural population of wild lima bean in Mexico was significantly correlated with missing leaf area. Since existing correlations do not by necessity mean causal associations, the function of cyanogenesis as efficient plant defence was subsequently analysed in feeding trials. We used natural chrysomelid herbivores and clonal lima beans with known cyanogenic features produced from field-grown mother plants. We show that in addition to extensively investigated indirect defences, cyanogenesis has to be considered as an important direct defensive trait affecting lima beans' overall defence in nature. Our results indicate the general importance of analysing ‘multiple defence syndromes’ rather than single defence mechanisms in future functional analyses of plant defences. PMID:19424497

  18. Psychological Study of the behavior standards in traffic environments, in groups of private and professional drivers in Lima

    OpenAIRE

    Ponce D., Carlos; Facultad de Psicología, Universidad Nacional Mayor de San Marcos, Lima, Perú; Bulnes B., Mario; Facultad de Psicología, Universidad Nacional Mayor de San Marcos, Lima, Perú; Aliaga T., Jaime; Facultad de Psicología, Universidad Nacional Mayor de San Marcos, Lima, Perú; Delgado C., Eliana; Facultad de Psicología, Universidad Nacional Mayor de San Marcos, Lima, Perú; Solís N., Rolando; Facultad de Psicología, Instituto de Investigaciones Psicológicas, Universidad Nacional Mayor de San Marcos Ciudad Universitaria de San Marcos. Facultad de Psicología. Instituto de Investigaciones Psicológicas. Av. Germán Amézaga s/n., Lima 1 - Perú

    2014-01-01

    Objectives: 1. To understand behaviour styles of private and public service drivers in Lima, Metropolitan Area. 2. To detect the existence of significant differences in behaviour styles in traffic environments, within private and public service drivers of Lima, Metropolitan Area, in a global and specific manner. 3. To investigate the existence of significant differences of behaviour styles in traffic environments, within private and public service drivers of Lima, Metropolitan Area, in relati...

  19. MR angiography in tuberculous meningitis

    Energy Technology Data Exchange (ETDEWEB)

    Kalita, Jayantee; Prasad, Sreeram; Maurya, Pradeep K.; Misra, Usha K. (Dept. of Neurology, Sanjay Gandhi Post Graduate Inst. of Medical Sciences, Lucknow (India)), Email: drukmisra@rediffmail.com; Kumar, Sunil (Dept. of Radiodiagnosis, Sanjay Gandhi Post Graduate Inst. of Medical Sciences, Lucknow (India))

    2012-04-15

    Background: Infarctions in tuberculous meningitis (TBM) are common but there is a paucity of studies on MR angiography (MRA). Purpose: To evaluate the pattern and predictors of MRA abnormality in patients with TBM. Material and Methods: Sixty-seven patients with TBM were subjected to clinical, laboratory, magnetic resonance imaging (MRI), and MRA evaluation. The severity of meningitis, focal deficit, CSF findings, and stroke co-morbidities were recorded. Presence of exudates, infarction, hydrocephalous, and tuberculoma on MRI were noted. On intracranial MRA, occlusion or more than 50% narrowing of proximal middle cerebral artery (MCA), anterior cerebral artery (ACA) and posterior cerebral artery (PCA), and basilar artery were considered abnormal. The MRA abnormality was correlated with clinical, laboratory, and MRI findings. Results: Sixty-seven patients, aged 3-75 years (median 34 years) were included. MRI was abnormal in 61 (91%) patients; basal exudates in 24, hydrocephalous in 23, tuberculoma in 33, and infarction in 40. MRA was abnormal in 34 (50.7%); MCA was most commonly involved (n = 21), followed by PCA (n = 14), ICA (n = 8), ACA (n 5), basilar artery (n = 5), and vertebral and superior cerebellar artery (1 each). One-fourth of the patients had abnormality in both anterior and posterior circulations. MRA abnormality was related to hydrocephalous and infarction; corresponding infarct was present in 61.8% patients; 41.7% patients with abnormal MRA developed infarct at 3 months but none with normal MRA. Conclusion: Half the patients with TBM had MRA abnormality involving both anterior and posterior circulations and 61.8% of them had corresponding infarcts

  20. Ivermectin is a nonselective inhibitor of mammalian P-type ATPases.

    Science.gov (United States)

    Pimenta, Paulo Henrique Cotrim; Silva, Claudia Lucia Martins; Noël, François

    2010-02-01

    Ivermectin is a large spectrum antiparasitic drug that is very safe at the doses actually used. However, as it is being studied for new applications that would require higher doses, we should pay attention to its effects at high concentrations. As micromolar concentrations of ivermectin have been reported to inhibit the sarco-endoplasmic reticulum Ca(2+)-ATPase (SERCA), we decided to investigate its putative inhibitory effect on other two important P-type ATPases, namely the Na(+) , K(+)-ATPase and H(+)/K(+)-ATPase. We first extended the data on SERCA, using preparations from rat enriched in SERCA1a (extensor digitorum longus) and 1b (heart) isoforms. Secondly, we tested the effect of ivermectin in two preparations of rat Na(+), K(+)-ATPase in order to appreciate its putative selectivity towards the alpha(1) isoform (kidney) and the alpha(2)/alpha(3) isoforms (brain), and in an H(+)/K(+)-ATPase preparation from rat stomach. Ivermectin inhibited all these ATPases with similar IC(50) values (6-17 microM). With respect to the inhibition of the Na(+), K(+)-ATPase, ivermectin acts by a mechanism different from the classical cardiac glycosides, based on selectivity towards the isoforms, sensibility to the antagonistic effect of K(+) and to ionic conditions favoring different conformations of the enzyme. We conclude that ivermectin is a nonselective inhibitor of three important mammalian P-type ATPases, which is indicative of putative important adverse effects if this drug were used at high doses. As a consequence, we propose that novel analogs of ivermectin should be developed and tested both for their parasitic activity and in vitro effects on P-type ATPases.

  1. Transient cortical blindness after coronary angiography.

    Science.gov (United States)

    Alp, B N; Bozbuğa, N; Tuncer, M A; Yakut, C

    2009-01-01

    Transient cortical blindness is rarely encountered after angiography of native coronary arteries or bypass grafts. This paper reports a case of transient cortical blindness that occurred 72 h after coronary angiography in a 56-year old patient. This was the patient's fourth exposure to contrast medium. Neurological examination demonstrated cortical blindness and the absence of any focal neurological deficit. A non-contrast-enhanced computed tomographic scan of the brain revealed bilateral contrast enhancement in the occipital lobes and no evidence of cerebral haemorrhage, and magnetic resonance imaging of the brain showed no pathology. Sight returned spontaneously within 4 days and his vision gradually improved. A search of the current literature for reported cases of transient cortical blindness suggested that this is a rarely encountered complication of coronary angiography.

  2. Analysis of coronary angiography related psychophysiological responses

    Directory of Open Access Journals (Sweden)

    Kaya Mehmet G

    2011-08-01

    Full Text Available Abstract Background Coronary angiography is an important tool in diagnosis of cardiovascular diseases. However, it is the administration is relatively stressful and emotionally traumatic for the subjects. The aim of this study is to evaluate psychophysiological responses induced by the coronary angiography instead of subjective methods such as a questionnaire. We have also evaluated the influence of the tranquilizer on the psychophysiological responses. Methods Electrocardiography (ECG, Blood Volume Pulse (BVP, and Galvanic Skin Response (GSR of 34 patients who underwent coronary angiography operation were recorded. Recordings were done at three phases: "1 hour before," "during," and "1 hour after" the coronary angiography test. Total of 5 features obtained from the physiological signals were compared across these three phases. Sixteen of the patients were administered 5 mg of a tranquilizer (Diazepam before the operation and remaining 18 were not. Results Our results indicate that there is a strong correlation between features (LF/HF, Bk, DN1/DN2, skin conductance level and seg_mean in terms of reflecting psychophysiological responses. However only DN1/DN2 feature has statistically significant differences between angiography phases (for diazepam: p = 0.0201, for non_diazepam p = 0.0224. We also note that there are statistically significant differences between the diazepam and non-diazepam groups for seg_mean features in "before", "during" and "after" phases (p = 0.0156, 0.0282, and 0.0443, respectively. Conclusions The most intense sympathetic activity is observed in the "during" angiography phase for both of the groups. The obtained features can be used in some clinical studies where generation of the customized/individual diagnoses styles and quantitative evaluation of psychophysiological responses is necessary.

  3. DAMPAK SOSIAL EKONOMI PENATAAN LINGKUNGAN BAGI PEDAGANG KAKI LIMA (PKL

    Directory of Open Access Journals (Sweden)

    Abdul Bakhirnudin

    2013-03-01

    Full Text Available Pedagang kaki lima identik dengan kesan buruk, kotor dan tidak tertib. Penempatan sarana perda­gangan yang tidak teratur dan tidak tertata serta sering menempati tempat yang menjadi tempat umum dianggap sebagai penyebab kondisi tersebut. Tingginya minat konsumsi masyarakat menyebabkan pedagang kaki lima menjadi semakin banyak, terutama masyarakat kelas bawah. Melalui Perda Nomor 11 Tahun 2000, Pemerintah Kota Semarang sudah berusaha menata PKL. Namun pada kenyataannya belum ditemukan solusi yang komprehensif untuk mengatasi permasalahan PKL. Populasi penelitian ini adalah PKL Perumnas Tlogosari Kota Semarang berjumlah 173 pedagang. Sampel yang digunakan berjumlah 100 orang sebagian besar berasal dari luar kawasan Perumnas Tlogosari. Model PKL di PerumTlogosari mengunakan Pola Penyebaran Memanjang (Linier Concentration. Hasil penelitian menunjuk­kan bahwa sebelum ada penataan tidak ada paguyuban. Namun setelah penataan terdapat sebuah paguyuban pedagang dan jasa (PPJ, dalam bentuk arisan. Dampak sosial selain paguyuban adalah agenda rutin arisan, serta peraturan lainnya sehingga meninimalkan konflik yang timbul. Dari sisi ekonomi, sebagian besar pedagang mengalami peningkatan pendapatan yang diperoleh per bulan. Oleh karena itu, untuk menjaga keberlanjutan dari dampak positif yang timbul, diharapkan PKL mampu menjaga dan melaksanakan aturan yang telah disepakati bersama, sekaligus melakukan inovasi-inovasi agar barang yang dijual lebih bervariatif untuk memperoleh keuntungan berkesinambungan.Street vendors usually have bad impression because they are dirty and disorderly. It is because they are disorganized and they often occupy public places. The high interest of consumers, especially from the lower class has made more and more street vendors. By issuing Perda of 2000 No. 11, the local government of Semarang has tried to organize them. However, it is not a comprehensive solution to overcome the problems of street vendors. The population of

  4. Cilantro microbiome before and after nonselective pre-enrichment for Salmonella using 16S rRNA and metagenomic sequencing

    OpenAIRE

    Jarvis, Karen G.; White, James R; Grim, Christopher J.; Ewing, Laura; Ottesen, Andrea R; Beaubrun, Junia Jean-Gilles; Pettengill, James B.; Brown, Eric; Hanes, Darcy E.

    2015-01-01

    Background Salmonella enterica is a common cause of foodborne gastroenteritis in the United States and is associated with outbreaks in fresh produce such as cilantro. Salmonella culture-based detection methods are complex and time consuming, and improvments to increase detection sensitivity will benefit consumers. In this study, we used 16S rRNA sequencing to determine the microbiome of cilantro. We also investigated changes to the microbial community prior to and after a 24-hour nonselective...

  5. Potassium current inhibition by nonselective cation channel-mediated sodium entry in rat pheochromocytoma (PC-12) cells.

    OpenAIRE

    Strübing, C; J Hescheler

    1996-01-01

    Under physiological conditions, nonselective cation (NSC) channels mediate the entry of cations into cells, the most important being Na+ and Ca2+. In contrast to the Ca(2+)-dependent signaling mechanisms, little is known about the consequences and the spatial distribution of intracellular [Na+] elevation. In this study we demonstrate that Na+ entry, during the opening of ATP-activated NSC channels, leads to an inhibition of voltage-dependent K+ currents (IK) in cromaffin-like undifferentiated...

  6. Developing a Robust Strategy for Implementing a Water Resources Master Plan in Lima, Peru

    Science.gov (United States)

    Kalra, N.; Groves, D.; Bonzanigo, L.; Molina-Perez, E.

    2015-12-01

    Lima, the capital of Peru, faces significant water stress. It is the fifth largest metropolitan area in Latin America, and the second largest desert city in the world. The city has developed a Master Plan of major investment projects to improve water reliability until 2040. Yet key questions remain. Is the Master Plan sufficient for ensuring reliability in the face of deeply uncertain future climate change and demand? How do uncertain budget and project feasibility conditions shape Lima's options? How should the investments in the plan be prioritized, and can some be delayed? Lima is not alone in facing these planning challenges. Governments invest billions of dollars annually in long-term projects. Yet deep uncertainties pose formidable challenges to making near-term decisions that make long-term sense. The World Bank has spearheaded a community of practice on methods for Decision Making Under Deep Uncertainty (DMU). This pilot project in Peru is the first in-depth application of DMU techniques to water supply planning in a developing country. It builds on prior analysis done in New York, California, and for the Colorado River, yet shows how these methods can be applied in regions which do not have as advanced data or tools available. The project combines three methods in particular -- Robust Decision Making, Decision Scaling, and Adaptive Pathways -- to help Lima implement its Master Plan in a way that is robust, no-regret, and adaptive. It was done in close partnership with SEDAPAL, the water utility company in Lima, and in coordination with other national WRM and meteorological agencies. This talk will: Present the planning challenges Lima and other cities face, including climate change Describe DMU methodologies and how they were applied in collaboration with SEDAPAL Summarize recommendations for achieving long-term water reliability in Lima Suggest how these methodologies can benefit other investment projects in developing countries.

  7. Digital subtraction angiography of the thoracic aorta

    Energy Technology Data Exchange (ETDEWEB)

    Grossman, L.B.; Buonocore, E.; Modic, M.T.; Meaney, T.F.

    1984-02-01

    Forty-three patients with acquired and congenital abnormalities of the thoracic aorta were studied using digital subtraction angiography (DSA) after an intravenous bolus injection of 40 ml of contrast material. Abnormalities studied included coarctation, pseudocoarctation, Marfan syndrome, cervical aorta, double aortic arch, aneurysm, dissection, and tumor. Twenty-four patients also had conventional angiography. DSA was accurate in 95% of cases; in the other 5%, involving patients with acute type I dissection, the coronary arteries could not be seen. The authors concluded that in 92% of their patients, DSA could have replaced the standard aortogram.

  8. Optical Coherence Tomography Angiography in Fovea Plana.

    Science.gov (United States)

    Dolz-Marco, Rosa; Phasukkijwatana, Nopasak; Sarraf, David; Freund, K Bailey

    2016-07-01

    Fovea plana is characterized by the anatomical absence of the foveal pit in eyes with normal visual function. The authors have analyzed three cases of idiopathic fovea plana with optical coherence tomography angiography (OCTA). As previously reported, the authors found the absence of a foveal avascular zone in all cases with OCTA; however, a preserved fusion of both the superficial and the deep capillary plexuses was found around the foveal center. This novel observation cannot be detected with conventional dye-based angiography, in which the deep capillary plexus is not visualized. [Ophthalmic Surg Lasers Imaging Retina. 2016;47:670-673.].

  9. CT angiography and CT perfusion in acute ischemic stroke

    NARCIS (Netherlands)

    Seeters, T. van

    2016-01-01

    CT angiography and CT perfusion are used in patients with acute ischemic stroke for diagnostic purposes and to select patients for treatment. In this thesis, the reproducibility of CT angiography and CT perfusion is examined, the additional value of CT angiography and CT perfusion for stroke outcome

  10. [Use of information sources by recently graduated physicians of Lima].

    Science.gov (United States)

    Mejia, Christian R; Caceres, Onice J; Vera, Claudia A; Nizama-Vía, Ayar; Curioso, Walter H; Mayta-Tristán, Percy

    2014-01-01

    In order to determine the use of information sources by recently graduated physicians of Lima, Peru in 2011, a survey was conducted among graduated physicians at seven universities. They were asked about the use of search engines in the health area during their year of medical internship [last year of medical school]. Regular use was defined as the source being used once a week or daily. For 490 respondents, regularly used information sources were SciELO, accessed by 173 (36.4%); PubMed 165 (34.4%); HINARI 117 (25.5%); UpToDate 98 (22.3%); Cochrane Library 94 (20.6%); LILACS 91 (19.8%); a hospital institutional library 70 (15.0%); LIPECS 39 (8.7%); and Peru BVS 42 (9.3%). Only a minority regularly accessed information sources related to health. It is necessary to improve capacity in the efficient use of various resources of scientific information in a continuous way and that reaches students and health professionals.

  11. Spinal angiography: vascular anatomy, technique, indications; Spinale Angiographie: Gefaessanatomie, Technik und Indikationsstellung

    Energy Technology Data Exchange (ETDEWEB)

    Grunwald, I.; Reith, W. [Universitaet des Saarlandes, Homburg/Saar (Germany). Abt. fuer Neuroradiologie; Thron, A. [Universitaetsklinik der RWTH Aachen (Germany). Abteilung fuer Neuroradiologie

    2001-11-01

    The indication for spinal angiography has to be closely set as in case of inadequate handling this procedure bares the risk of paraplegia. In unclear spinal symptoms lasting over a longer periode of time, spinal vascular malformation have to be considered. Spinal vascular malformations are often reversibel, especially if diagnosed early. Diagnostic methods have to include spinal angiography if other non-invasive methods do not lead to results. The main point is to consider spinal vascular malformations in unclear cases. (orig.) [German] Die Indikation zu einer spinalen Angiographie muss streng gestellt werden, da bei unsachgemaesser Durchfuehrung dieser Untersuchung die Gefahr einer bleibenden Querschnittsymptomatik besteht. Bei unklarer spinaler Symptomatik, die ueber einen laengeren Zeitraum progredient ist, muss jedoch immer auch an eine spinale Gefaessfehlbildung gedacht werden. Die durch alle diagnostischen Moeglichkeiten einschliesslich der spinalen Angiographie diagnostizierten spinalen Gefaessfehlbildungen sind haeufig kurabel, insbesondere bei frueher Diagnosestellung. Der wichtigste Punkt ist jedoch, dass differenzialdiagnostisch auch an eine spinale Gefaessfehlbildung gedacht wird. (orig.)

  12. Tourism Development Plan for Nova Lima, MG/BR: A Case Study

    Directory of Open Access Journals (Sweden)

    Porto Aluisio Finazzi

    2014-01-01

    Full Text Available The project called “Tourism Development Plan of Nova Lima, MG” was a labor required by the city of Nova Lima, through the Secretary of Municipal Tourism. The municipality of Nova Lima has numerous tourist attractions or potential for them attractive, and is developing a work of public policies aimed at structuring this activity. The objective of this project was to offer to its population, as well as the government and the private sector, the assurance of quality activity according to the international, national and state the assumptions referred to in the Municipal Tourism Plan. All work was developed by Scientific and Technical Research Data Collection, which took into consideration the participation of local stakeholders in the development of tourism through public hearings with the Section for Local Tourism, making use of Information from the Current Municipal Development Plan for Nova Lima and its Secretary of Tourism. We also note that the study was conducted in accordance with the guidelines and considerations of the Municipal Tourism Council (COMTUR of Nova Lima.

  13. Your Radiologist Explains Magnetic Resonance Angiography (MRA)

    Medline Plus

    Full Text Available ... Therapy November 8 is the International Day of Radiology (IDoR) Radiology and You Sponsored by Image/Video Gallery Your ... Explains Magnetic Resonance Angiography (MRA) Transcript Welcome to Radiology Info dot org Hello, I’m Dr. Elliot ...

  14. MDCT angiography and transcatheter embolization in management ...

    African Journals Online (AJOL)

    Hassan Abdelsalam

    2015-12-18

    Dec 18, 2015 ... Production and hosting by Elsevier B.V.. This is an open .... 10/33 of the embolized cases were post-operative; the com- monest cause ... (b) Digital subtraction IMA selective angiography showing the site of active bleeding ...

  15. Your Radiologist Explains Magnetic Resonance Angiography (MRA)

    Medline Plus

    Full Text Available ... Index A-Z Spotlight October is National Breast Cancer Awareness Month Recently posted: Medical Imaging Costs Magnetoencephalography (MEG) Video: Coronary CT Angiography Video: Myelography Video: CT of the Heart Video: Radioiodine I-131 Therapy November 8 is the International Day of Radiology ( ...

  16. E-learn Computed Tomographic Angiography

    DEFF Research Database (Denmark)

    Havsteen, Inger; Christensen, Anders; Nielsen, Jens K

    2012-01-01

    BACKGROUND: Computed tomographic angiography (CTA) is widely available in emergency rooms to assess acute stroke patients. To standardize readings and educate new readers, we developed a 3-step e-learning tool based on the test-teach-retest methodology in 2 acute stroke scenarios: vascular...

  17. Post-mortem CT-coronary angiography

    DEFF Research Database (Denmark)

    Pøhlsgaard, Camilla; Leth, Peter Mygind

    2007-01-01

    post-mortem coronary angiography and computerized tomography.  We describe how to prepare and inject the contrast medium, and how to establish a CT-protocol that optimizes spatial resolution, low contrast resolution and noise level. Testing of the method on 6 hearts, showed that the lumen...

  18. Angiography and coronary function, a clinical approach

    NARCIS (Netherlands)

    Stoel, Martin Gerrit

    2013-01-01

    Coronary angiography has the potential to determine coronary function in addition to merely showing coronary anatomy. In this thesis, we describe several facets of angiographic evaluation of coronary flow velocity and function. Measurement of the length of the coronary vessels by means of a guide

  19. Magnetic Resonance Angiography: Principles and Applications.

    Science.gov (United States)

    Dyke, Lara M

    2013-12-01

    Magnetic Resonance Angiography: Principles and Applications. Carr J. C., Carroll T. J., Springer-Verlag, Heidelberg/New York, 2012. 412 pp. Price $179.00. ISBN 978-1-4419-1685-3 (hardcover). © 2013 American Association of Physicists in Medicine.

  20. Spinal angiography. Anatomy, technique and indications; Spinale Angiographie. Anatomie, Technik und Indikation

    Energy Technology Data Exchange (ETDEWEB)

    Reith, W.; Simgen, A.; Yilmaz, U. [Universitaetsklinikum des Saarlandes, Klinik fuer Diagnostische und Interventionelle Neuroradiologie, Homburg/Saar (Germany)

    2012-05-15

    Spinal angiography is a diagnostic modality requiring detailed knowledge of spinal vascular anatomy. The cervical spinal cord is supplied by the vertebral arteries while segmental arteries which are preserved from fetal anatomy, supply the thoracic and lumbar regions. As spinal angiography carries the risk of paraplegia the indications have to be considered very carefully. Nevertheless, spinal angiography should be performed if there is reason to suspect a spinal vascular malformation from magnetic resonance imaging (MRI). (orig.) [German] Indikationsstellung, Technik und Durchfuehrung der spinalen Angiographie erfordern detaillierte Kenntnisse der Gefaessversorgung des Spinalkanals und des Rueckenmarks. Die Gefaessversorgung des Rueckenmarks erfolgt im Bereich des Halsmarks aus den beiden Aa. vertebrales. Eine zusaetzliche arterielle Versorgung der Wirbelsaeule einschliesslich des Rueckenmarks wird ueber segmentale Arterien hergestellt, die im Bereich der Thorakal- und Lumbalregion aus der Embryonalphase als segmentale, interkostale und Lumbalarterien erhalten geblieben sind. Da die spinale Angiographie die Gefahr der Querschnittslaehmung birgt, ist eine strenge Indikation notwendig. Eine ueber laengere Zeit bestehende unklare klinische Symptomatik kann auch durch eine spinale Gefaessmalformation hervorgerufen werden. Ist durch die MRT-Bildgebung der Verdacht auf eine spinale Gefaessfehlbildung gegeben, sollte eine Angiographie durchgefuehrt werden, da diese Fehlbildungen oft kurabel sind. (orig.)

  1. Coronary CT angiography in coronary artery disease: Opportunities and challenges

    Directory of Open Access Journals (Sweden)

    Zhonghua Sun

    2016-06-01

    Full Text Available Coronary CT angiography is widely recognised as a reliable imaging modality for the diagnosis of coronary artery disease. Coronary CT angiography not only provides excellent visualisation of anatomical changes in the coronary artery with high diagnostic value in the detection of lumen stenosis or occlusion, but also offers quantitative characterisation of coronary plaque components. Furthermore, coronary CT angiography allows myocardial perfusion imaging with diagnostic value comparable to the reference standard method. Coronary CT angiography-derived haemodynamic analysis has the potential to evaluate functional significance of coronary lesions. This review article aims to provide an overview of clinical applications of coronary CT angiography in coronary artery disease.

  2. Miconia bullotricha and M. hirtistyla, two new species of Miconia sect. Lima (Miconieae, Melastomataceae) from eastern Cuba

    Science.gov (United States)

    Majure, Lucas C.; Bécquer, Eldis R.; Judd, Walter S.

    2014-01-01

    Abstract We describe two new species in Miconia sect. Lima, Miconia bullotricha Bécquer & Majure and Miconia hirtistyla Majure & Judd, from eastern, Cuba. We also provide illustrations and distribution maps for the two species, as well as a key to members of the Lima clade on Cuba. PMID:24526849

  3. VIOLENCIA DOMéSTICA CONTRA EL HOMBRE EN LA CIUDAD DE LIMA - DOMESTIC VOLENCE AGAINST MEN LIMA

    Directory of Open Access Journals (Sweden)

    SARA BECERRA FLORES

    2009-06-01

    Full Text Available In a sample of 385 men, randomly selected in a sampling pilietapico, higher and secondary education in Lima, with an ex post facto design, defines the characteristics of domestic violence against men, using as an instrument a questionnaire developed by the authors, found that a year ago, 71% of subjects were victims of abuse, a figure that dropped to 45% for the present, by a partner, because it assumed its responsibility to these facts and moved away of the abuser, not the abused howewer at present they do in the form of punching, slapping, kicking and hitting with objects (89% and not feed and come out with another and they say (70% psychological , this gives the weekends because of the money (38% does not reach the silver or earn less or the anger of the couple in 46%, to remain silent or it will be the street ( 51%, feeling powerless or perceived as normal by their partner was angry, 80% or have not reported their experience of privacy or embarrassment or because they believe does no, for fear that their children pay the consequences, wanting to participate in self-help groups receive educational information also perceive that there is no history of such abuse in the eighbourhood and to those who say that if there is a history, the insult is the most common

  4. Physical reconstruction of the radiological accident of Chilca (Lima - Peru); Reconstruccion fisica del accidente radiologico de Chilca (Lima - Peru)

    Energy Technology Data Exchange (ETDEWEB)

    Lachos, A. [Instituto Nacional de Enfermedades Neoplasicas, Departamento de Radioterapia, Av. Angamos Este 2520, Surquillo, Lima (Peru); Marquez, J. F., E-mail: alachosd1271@yahoo.com [Univesidad Nacional Mayor de San Marcos, Facultad de Ciencias Fisicas, C. German Amezaga 375, Ciudad Univesitaria, Lima (Peru)

    2014-08-15

    The radiological accident happened in the Chilca District, the Canete County at 60 km to the south of Lima-Peru, during the night of January 11 to 12, 2012. The physical reconstruction of the accident was carried out in January 21, 2012, by means of the information gathering administrative and technical of the radioactive source as well as of the installation, the personnel and the involved procedures in the accidental event, information of the space geometry where the event took place. The preliminary information indicates that the source could have been locked in the guide tube of the equipment, next to the collimator in the first takes radiographic. The radiation monitors were not activated on the procedure, impeding this way, not to realize the flaw and causing that the personnel were exposed to the radiation during the whole work period. Their hands and especially their fingers would have been only to some millimeters of the source. With the obtained information and the measurements of the exposure rates of the radioactive source, was carried out the dose calculation to total body, the dose received in the hands and the dose received in the index finger of the left hand. The accident happened by operative procedure breach, by lack of training of the operators. The physical reconstruction of the accident contributes fundamental information for the decisions taking in the medical management of the accidents by radiation. (author)

  5. Proteomic profile in Perna viridis after exposed to Prorocentrum lima, a dinoflagellate producing DSP toxins.

    Science.gov (United States)

    Huang, Lu; Zou, Ying; Weng, Hui-wen; Li, Hong-Ye; Liu, Jie-Sheng; Yang, Wei-Dong

    2015-01-01

    In the current study, we compared protein profiles in gills of Perna viridis after exposure to Prorocentrumlima, a dinoflagellate producing DSP toxins, and identified the differential abundances of protein spots using 2D-electrophoresis. After exposure to P. lima, the level of okadaic acid (a main component of DSP toxins) in gills of P. viridis significantly increased at 6 h, but mussels were all apparently healthy without death. Among the 28 identified protein spots by MALDI TOF/TOF-MS, 12 proteins were up-regulated and 16 were down-regulated in the P. lima-exposed mussels. These identified proteins were involved in various biological activities, such as metabolism, cytoskeleton, signal transduction, response to oxidative stress and detoxification. Taken together, our results indicated that the presence of P. lima caused DSP toxins accumulation in mussel gill, and might consequently induce cytoskeletonal disorganization,oxidative stress, a dysfunction in metabolism and ubiquitination/proteasome activity.

  6. Seroprevalence of Helicobacter pylori infection among an adult population of Lima, Peru 2017

    Directory of Open Access Journals (Sweden)

    Arturo Pareja Cruz

    2017-02-01

    Full Text Available Objective: To know the seroprevalence of Helicobacter pylori infection among an adult population of Lima, Peru 2017. Materials and methods: Descriptive, prospective, cross-sectional study. Population of volunteers older than 18 years, of both sexes, with or without general gastrointestinal discomfort. A screening campaign was carried out in the districts of Magdalena and Chorrillos in the city of Lima, Peru, in January 2017. For the diagnosis, CTK Biotech’s OnSite H. pylori Ab Combo Rapid Test CE was used. Results: One hundred forty (140 patients were evaluated, with a mean age of 36.6 years old, being 22.1% male and 77.9% female. The seroprevalence of Helicobacter pylori infection was 63.6%. Conclusions: We conclude that Helicobacter pylori infection is common in the city of Lima, with no difference between gender and age.

  7. STRATEGI PEMASARAN PAKET WISATA PADA PT. PANDAWA LIMA TOUR AND TRAVEL INDONESIA DI DENPASAR

    Directory of Open Access Journals (Sweden)

    I Gede Adhi Suputra Arimbawa PG.

    2017-01-01

    Full Text Available This research is about the marketing strategies implemented by PT. Pandawa Lima Tour and Travel tour packages. Company offers tour packages in Bali and beyond Bali tour packages with variety of facilities. As a common general company, PT. Pandawa Lima Tour and Travel has the objective to make profit and trying to satisfy consumers. This research aims to determine the marketing strategy package in PT. Pandawa Lima Tour and Travel tour package in Denpasar. The data collection method in research carried out by the method of observation, in-depth interviews, library research, and technique documentation. The data analysis technique used is descriptive qualitative combined with the SWOT approach. Discussion of the results of the marketing strategy adopted by the PT. Pandawa Lima Tour and Travel is SO strategy by increasing sales promotion to target markets, enhance cooperation with hotels and travel agents and maintain the diversity and innovation of product and service quality. ST strategies to further enhance cooperation with other travel agencies, and improve service quality. WO strategies to enhance the promotion through the mass media, and printing brochures, expanding market segments and improve the quality of human resources in education and training. While WT strategy by increasing promotional activities and improve human resources. Based on the results of the discussion, can give advice - advice on marketing strategies in PT. Pandawa Lima Tour and Travel tour packages that maintain good relations with the company's existing transport and suggest PT. Pandawa Lima Tour and Travel to their own transport, improving education and training for employees and appropriate compensation, as well as updating the architecture buildings and office equipment.

  8. Coarctation of the aorta: comparison of aortic dimensions between conventional MR imaging, 3D MR angiography, and conventional angiography

    Energy Technology Data Exchange (ETDEWEB)

    Godart, Francois; Rey, Christian [Department of Paediatric Cardiology, Cardiac Hospital, University of Lille, 59037 Lille (France); Labrot, Gabrielle; McFadden, Eugene; Beregi, Jean-Paul [Department of Radiology, Cardiac Hospital, University of Lille, 59037 Lille (France); Devos, Patrick [CERIM-Department of Biostatistics, University of Lille, 59037 Lille (France)

    2002-08-01

    Magnetic resonance angiography is increasingly used as a non-invasive method in the evaluation of coarctation of the aorta. The aim of this study was to compare aortic dimensions calculated by MR angiography and those obtained by more conventional MR sequences and conventional angiography. Twenty-six consecutive patients with coarctation underwent three-dimensional MR angiography. Two independent observers retrospectively evaluated three aortic segments, site of coarctation, presence of aneurysm and existence of collateral circulation. Three aortic segments were also compared with those obtained on classical MR sequences and conventional angiography. The MR angiography was successfully performed in all showing 1 aneurysm and collateral circulation in 8 patients. Almost perfect intraobserver (r{sup 2}>0.91) and excellent interobserver (r{sup 2}>0.80) reliabilities were obtained for each aortic segment no matter which MR sequence was employed. Similarly, mainly excellent (r{sup 2}>0.80) concordance analysis was observed between MR angiography measurements and those calculated by either spin-echo/gradient-echo sequences or conventional angiography. This study demonstrates that MR angiography is a fast, accurate and reproducible method in the evaluation of coarctation of the aorta. It provides excellent anatomic information and reliably detects collateral vessels. Magnetic resonance angiography could probably replace the conventional angiography and will provide an additional diagnostic value in combination with turbo spin-echo sequence. (orig.)

  9. ESTUDIO PRELIMINAR DE CONTAMINACIÓN ATMOSFÉRICA POR ASBESTO EN EL CENTRO DE LIMA

    OpenAIRE

    Acero Rosales, Tomás; Departamento Académico de Procesos. Facultad de Química e Ingeniería Química, Universidad Nacional Mayor de San Marcos. Lima, Perú

    2014-01-01

    En el presente trabajo se determina la posible presencia de asbesto como contaminante atmosférico en una de las avenidas del Centro de Lima, con intenso trafico de vehiculos motorizados, que podría generar la presenda de partículas da asbesto provenientes del desgaste de las zapatas de frenos y que tendra efecto grave en las personas que permanecen gran parte del día por razones de trabajo y tos que transitan por la avenida Abancay. We had studied the pollution in downtown of Lima by asbes...

  10. Flora vascular y vegetación del humedal de Santa Rosa (Chancay, Lima)

    OpenAIRE

    Dámaso W. Ramirez; Hector Aponte; Asuncion Cano

    2011-01-01

    El presente trabajo muestra los resultados de un estudio de la flora y vegetación del humedal de Santa Rosa (Chancay, Lima) realizado entre los años 2007 y 2009. La flora vascular estuvo conformada por 66 especies agrupadas en 57 géneros y 26 familias. Las Poaceae (16), Cyperaceae (6) y Asteraceae (6) fueron las familias más diversas y constituyeron el 42% de la flora total. En comparación con los principales humedales de Lima, Santa Rosa presenta un mayor número de especies (Pantan...

  11. Meanings of organization and community participation in vulnerable communities in Metropolitan Lima

    OpenAIRE

    Cueto,Rosa María; Seminario, Evelyn; Balbuena, Anna

    2014-01-01

    The study analyzes the speech of people from marginal urban areas of Lima for the meanings and their assessment of organizational processes and participation in their localities. Twenty two in-depth interviews were conducted in 3 settlements in the southern cone of Lima. The results show that family and community networks are valued as resources that can face the challenges of living in an environment perceived as precarious. The organization and community participation are important strategi...

  12. Los costos ocultos del presentismo laboral en las empresas manufactureras de Lima: 2012

    OpenAIRE

    Valera Loza, Daniel Hernán; Facultad de Ciencias Contables, Universidad Nacional Mayor de San Marcos

    2016-01-01

    El presente trabajo tuvo como objetivo que medianteun diseño descriptivo correlacional, se ha determinadolos costos del presentismo laboral en las empresasmanufactureras de Lima, durante el año 2012. Se haaplicado un cuestionario estructurado a 53 empresasmanufactureras de Lima, encuestándose a un totalde 903 trabajadores y trabajadoras, siendo el 36.7%varones y el 63.3% mujeres. El cuestionario fue previamentevalidado en una muestra nacional, en más de211 empresas, y contuvo las escalas de p...

  13. Contribution to Andean flora from Oyón District , Lima, Peru

    Directory of Open Access Journals (Sweden)

    Francis Kahn

    2016-05-01

    Full Text Available In this paper, the inventory of vascular plants of high mountains (altitudes of 4000-4810 m from northeast Oyon district, Lima, Peru is presented. Specimens were collected during March to May 2014 and 2015 and September to November 2015. 47 families, 112 genera and 181 species are reported, of which 94 were the first record for Lima region. For each species are given collector names, collect number and elevation. New local botanical inventories are needed for better evaluating the diversity, species distribution patterns and endemism in the high Andean vegetation.

  14. O dialeto do piloto José Alves de Lima (1739-1749

    Directory of Open Access Journals (Sweden)

    Susana Echeverria Echeverria

    2009-01-01

    Full Text Available In this article we present a study developed in order to discover José Alves de Lima dialect’s, using for that purpose the analysis of that Portuguese pilot’s orthographical choice; which were taken from the Diario del piloto portugues, Iosê Alves de Lima que, por orden de la Corte de Portugal fue reconocer las islas de la Ascencsión y Trinidad, em las costas del Brasil; an unedited 18th century manuscript kept at the Sala Cervantes of the Spanish Biblioteca Nacional, under number 23047.

  15. LA CIUDAD DESDE LA CASA: CIUDADES ESPONTÁNEAS EN LIMA

    OpenAIRE

    José García Calderón; Fernando Roch Peña; Elia Sáez Giraldez

    2010-01-01

    Este texto se basa en la investigación "Vivienda como generadora de ciudad en Latinoamérica: asentamientos informales en Lima-Perú", llevada a cabo en el Departamento de Urbanismo y Ordenación de Territorio, de la ETS de Arquitectura, de la Universidad Politécnica de Madrid, con el apoyo del Plan Propio de Ayudas al Personal Investigador en Formación de la UPM, en colaboración con la Facultad de Arquitectura de la Universidad Peruana de Ciencias Aplicadas, en Lima. Los asentamientos inform...

  16. Randomized trial of switching from prescribed non-selective non-steroidal anti-inflammatory drugs to prescribed celecoxib

    DEFF Research Database (Denmark)

    Macdonald, Thomas M; Hawkey, Chris J; Ford, Ian;

    2016-01-01

    BACKGROUND: Selective cyclooxygenase-2 inhibitors and conventional non-selective non-steroidal anti-inflammatory drugs (nsNSAIDs) have been associated with adverse cardiovascular (CV) effects. We compared the CV safety of switching to celecoxib vs. continuing nsNSAID therapy in a European setting...... primary events per 1000 patient-years exposure. There were only 15 adjudicated secondary upper gastrointestinal complication endpoints (0.078/100 patient-years on celecoxib vs. 0.053 on nsNSAIDs OT, 0.078 vs. 0.053 ITT). More gastrointestinal serious adverse reactions and haematological adverse reactions...

  17. Types of diaphragmatic motion during hepatic angiography.

    Science.gov (United States)

    Katsuda, T; Kuroda, C; Fujita, M

    1997-01-01

    To determine the types and causes of diaphragmatic motion during hepatic angiography, the authors used transarterial cut-film portography (TAP) to study movement of the diaphragm during breath-holding. Thirty-three TAP sequences were studied, and the patients' diaphragmatic motions were classified into four categories according to the distance their diaphragms moved. Results showed that the diaphragm was stationary in 33% of the TAP studies, while perpetual motion occurred in 15% of the studies, early-phase motion occurred in 12% and late-phase motion occurred in 40%. Ten sequences showed diaphragmatic motion of more than 10 mm, with eight sequences showing caudal motion and two showing cranial motion. This article discusses the cause of diaphragmatic motion during breath-holding for hepatic angiography and presents suggestions to reduce motion artifacts during the exam.

  18. Angiography in the region of the foot

    Energy Technology Data Exchange (ETDEWEB)

    Zeitler, E.

    1984-06-01

    It is reported on technique, incidence and findings of angiography of the foot which provided magnifying angiography and non-ionic contrast media are used, is especially qualified for the differentiation of diabetic and non-diabetic angiopathies as well as for the identification of peripherical embolizations and digital arterial occlusions at thrombocytosis or polycythemia. The arteries of the foot represent the peripherical outflow at peripherical reconstructive performances at the lower leg and have to be studied prior to such reconstructive surgical interventions. The different localization of arterial obliterations and changes of the walls in diabetics of stage I-IV according to Fontaine shows the particularly large number of vascular-pathological findings in arteries of the lower leg and foot in diabetics with arterial occlusive diseases of stage III and IV. Therefore, the unfavourable prognoses of arterial occlusive diseases in diabetics have also to be made for peripherical arterial obliterations of the foot and lower leg.

  19. Utilization of cardiac computed tomography angiography and outpatient invasive coronary angiography in Ontario, Canada.

    Science.gov (United States)

    Roifman, Idan; Rezai, Mohammad R; Wijeysundera, Harindra C; Chow, Benjamin J W; Wright, Graham A; Tu, Jack V

    2015-01-01

    Cardiac computed tomography angiography (coronary CTA) has emerged as a non-invasive method of diagnosing coronary artery disease. The extent of utilization and uptake of this technology since initiation of its funding by the government of Ontario is unknown. The aim of our study was to examine coronary CTA utilization and the rates of elective invasive coronary angiography and revascularization before and after funding initiation. We studied all coronary CTAs performed on adults in Ontario after initiation of funding. We also used an interrupted time series analysis to compare the average monthly rates of invasive angiography and revascularization before and after initiation of funding. There was an initial steep increase in age-and sex-standardized rates of coronary CTA from 5.0 to 11.4/100,000 over the first two quarters after funding initiation. Afterwards, there was a gradual increase in utilization from 11.4 to 17.1/100,000 over two subsequent calendar years. There was a significant reduction in both the mean monthly outpatient invasive coronary angiography (from 20.7 to 19.9 per 100,000 (p = 0.0004)) and revascularization (from 4.9 to 4.4 per 100,000 (p utilization. The increasing use of coronary CTA was associated with a reduction in both the rates of invasive angiography and revascularization. Copyright © 2015 Society of Cardiovascular Computed Tomography. Published by Elsevier Inc. All rights reserved.

  20. Cardiac CT Angiography in Congestive Heart Failure.

    Science.gov (United States)

    Levine, Avi; Hecht, Harvey S

    2015-06-01

    Cardiac CT angiography has become an important tool for the diagnosis and treatment of congestive heart failure. Differentiation of ischemic from nonischemic cardiomyopathy; evaluation of myocardial perfusion; characterization of hypertrophic cardiomyopathy, left ventricular noncompaction, and arrhythmogenic right ventricular dysplasia; and delineation of congenital heart defects and valvular abnormalities are the primary diagnostic applications. Therapeutic use includes visualization of the coronary venous anatomy for optimal implementation of cardiac resynchronization therapy and evaluation of left ventricular assist devices and transplant vasculopathy.

  1. Streblidae de murciélagos de Lima: dos citas nuevas para Perú Streblidae of bats from Lima: two new cites for Perú

    Directory of Open Access Journals (Sweden)

    Guillermo L. Claps

    2005-07-01

    Full Text Available Se presentan nuevos registros de Streblidae para el departamento Lima (Perú, que parasitan a tres especies de murciélagos de la familia Phyllostomidae: Anoura geoffroyi Gray, Carollia perspicillata (Linneo y Desmodus rotundus (Geoffroy. Se amplía la distribución geográfica de Anastrebla modestini Wenzel, Aspidoptera falcata Wenzel, Exastinion clovisi (Pessôa & Guimarães, Megistopoda aranea (Coquillett, Speiseria ambigua Kessel y Strebla wiedemanni Kolenati (Diptera, Streblidae, dado que se registran por primera vez en el departamento, y A. modestini y E. clovisi se mencionan por primera vez en Perú.New distributional records for bat ectoparasites (Streblidae, are presented for the Department of Lima (Perú. They were reported as collected on bats of the family Phyllostomidae: Anoura geoffroyi Gray, Carollia perspicillata (Linneo and Desmodus rotundus (Geoffroy. The distribution of Anastrebla modestini Wenzel, Aspidoptera falcata Wenzel, Exastinion clovisi (Pessôa & Guimarães, Megistopoda aranea (Coquillett, Speiseria ambigua Kessel and Strebla wiedemanni Kolenati (Diptera, Streblidae, is extended to the Department of Lima, and Anastrebla modestini and Exastinion clovisi are added to the fauna of Perú.

  2. Optical coherence tomography angiography in retinal diseases

    Directory of Open Access Journals (Sweden)

    K V Chalam

    2016-01-01

    Full Text Available Optical coherence tomography angiography (OCTA is a new, non-invasive imaging system that generates volumetric data of retinal and choroidal layers. It has the ability to show both structural and blood flow information. Split-spectrum amplitude-decorrelation angiography (SSADA algorithm (a vital component of OCTA software helps to decrease the signal to noise ratio of flow detection thus enhancing visualization of retinal vasculature using motion contrast. Published studies describe potential efficacy for OCTA in the evaluation of common ophthalmologic diseases such as diabetic retinopathy, age related macular degeneration (AMD, retinal vascular occlusions and sickle cell disease. OCTA provides a detailed view of the retinal vasculature, which allows accurate delineation of microvascular abnormalities in diabetic eyes and vascular occlusions. It helps quantify vascular compromise depending upon the severity of diabetic retinopathy. OCTA can also elucidate the presence of choroidal neovascularization (CNV in wet AMD. In this paper, we review the knowledge, available in English language publications regarding OCTA, and compare it with the conventional angiographic standard, fluorescein angiography (FA. Finally, we summarize its potential applications to retinal vascular diseases. Its current limitations include a relatively small field of view, inability to show leakage, and tendency for image artifacts. Further larger studies will define OCTA's utility in clinical settings and establish if the technology may offer a non-invasive option of visualizing the retinal vasculature, enabling us to decrease morbidity through early detection and intervention in retinal diseases.

  3. Optical Coherence Tomography Angiography in Retinal Diseases.

    Science.gov (United States)

    Chalam, K V; Sambhav, Kumar

    2016-01-01

    Optical coherence tomography angiography (OCTA) is a new, non-invasive imaging system that generates volumetric data of retinal and choroidal layers. It has the ability to show both structural and blood flow information. Split-spectrum amplitude-decorrelation angiography (SSADA) algorithm (a vital component of OCTA software) helps to decrease the signal to noise ratio of flow detection thus enhancing visualization of retinal vasculature using motion contrast. Published studies describe potential efficacy for OCTA in the evaluation of common ophthalmologic diseases such as diabetic retinopathy, age related macular degeneration (AMD), retinal vascular occlusions and sickle cell disease. OCTA provides a detailed view of the retinal vasculature, which allows accurate delineation of microvascular abnormalities in diabetic eyes and vascular occlusions. It helps quantify vascular compromise depending upon the severity of diabetic retinopathy. OCTA can also elucidate the presence of choroidal neovascularization (CNV) in wet AMD. In this paper, we review the knowledge, available in English language publications regarding OCTA, and compare it with the conventional angiographic standard, fluorescein angiography (FA). Finally, we summarize its potential applications to retinal vascular diseases. Its current limitations include a relatively small field of view, inability to show leakage, and tendency for image artifacts. Further larger studies will define OCTA's utility in clinical settings and establish if the technology may offer a non-invasive option of visualizing the retinal vasculature, enabling us to decrease morbidity through early detection and intervention in retinal diseases.

  4. The role of MR angiography in neuroradiology

    Energy Technology Data Exchange (ETDEWEB)

    Takahashi, Mutsumasa (Kumamoto Univ. (Japan). School of Medicine)

    1991-09-01

    Ninety-nine patients suspected of having intracranial and cervical lesions were evaluated with magnetic resonance (MR) angiography. The time of flight technique was used with 3D FIPS, including flip angle of 15-25 degrees, TR 40 msec/TE 7 msec and acquisition matrix of 256 x 256 x 32-64 with slice thickness of 5 to 8 cm. The scan time was 5 minutes and 28 seconds for images of 32 partitions and 10 minutes and 56 seconds for images of 64 partitions. MR angiography was useful for diagnosing steno-occlusive disease, arteriovenous malformation, aneurysm, moyamoya disease, brain tumor, and facial or trigeminal compression. The method has disadvantages, including signal loss due to turbulent and complex flow, lower spatial resolution, and poor delineation of the periphery and slow blood flow. Useful information was obtained in 50 patients (53.2%), when used with spin echo methods. With the technical progress of MR angiography, it will become a promising noninvasive approach to neuroradiological diagnosis, providing the useful information on intracranial and cervical lesions. (N.K.).

  5. Accuracy of Noncontrast Quiescent-Interval Single-Shot Lower Extremity MR Angiography Versus CT Angiography for Diagnosis of Peripheral Artery Disease : Comparison With Digital Subtraction Angiography

    NARCIS (Netherlands)

    Varga-Szemes, Akos; Wichmann, Julian L; Schoepf, U Joseph; Suranyi, Pal; De Cecco, Carlo N; Muscogiuri, Giuseppe; Caruso, Damiano; Yamada, Ricardo T; Litwin, Sheldon E; Tesche, Christian; Duguay, Taylor M; Giri, Shivraman; Vliegenthart, Rozemarijn; Todoran, Thomas M

    2017-01-01

    OBJECTIVES: This study sought to evaluate the image quality and diagnostic accuracy of noncontrast quiescent-interval single-shot (QISS) magnetic resonance angiography (MRA) versus iodine-contrast computed tomography angiography (CTA) in patients with peripheral artery disease (PAD), with invasive d

  6. The mouse defense test battery: evaluation of the effects of non-selective and BZ-1 (omega1) selective, benzodiazepine receptor ligands.

    Science.gov (United States)

    Griebel, G.; Sanger, D.J.; Perrault, G.

    1996-11-01

    The behavioral effects of several benzodiazepine (BZ) (omega) receptor ligands were compared using the Mouse Defense Test Battery which has been designed to assess defensive reactions of Swiss mice confronted with a natural threat (a rat) and situations associated with this threat. Primary measures taken before, during and after rat confrontation were escape attempts, flight, risk assessment and defensive threat and attack. The drugs used included non-selective BZ (omega) full (clonazepam, clorazepate, chlordiazepoxide and diazepam) and partial (bretazenil and imidazenil) agonists, and BZ-1 (omega1) selective (abecarnil, CL 218,872 and zolpidem) receptor ligands. With the exception of clonazepam, non-selective BZ (omega) receptor compounds only partially affected flight behaviors. The drugs reduced some but not all flight measures in response to the approaching rat, whereas clonazepam attenuated all flight reactions. In contrast to their mild and inconsistent actions on flight, the non-selective BZ (omega) receptor agonists displayed clear effects on risk assessment when subjects were chased by the rat. When contact was forced between the subject and the rat, the non-selective BZ (omega) receptor full agonists reduced defensive threat and attack reactions, while the partial agonists imidazenil and bretazenil only weakly attenuated defensive attack behavior. Similarly, after the rat had been removed from the test area, the non-selective BZ (omega) receptor full agonists displayed greater efficacy than the partial agonists in reducing escape attempts. Overall, results obtained with the selective BZ-1 (omega1) receptor ligands demonstrated either no clear effects or no specific action on defensive reactions. Taken together, these data demonstrate that: (1) non-selective BZ (omega) agonists displaying high intrinsic activity affect a wider range of defensive behaviors than non-selective BZ (omega) receptor partial agonists; (2) the defense system does not involve

  7. Early Recovery of Salmonella from Food Using a 6-Hour Non-selective Pre-enrichment and Reformulation of Tetrathionate Broth

    Science.gov (United States)

    Daquigan, Ninalynn; Grim, Christopher J.; White, James R.; Hanes, Darcy E.; Jarvis, Karen G.

    2016-01-01

    Culture based methods are commonly employed to detect pathogens in food and environmental samples. These methods are time consuming and complex, requiring multiple non-selective and selective enrichment broths, and usually take at least 1 week to recover and identify pathogens. Improving pathogen detection in foods is a primary goal for regulatory agencies and industry. Salmonella detection in food relies on a series of culture steps in broth formulations optimized to resuscitate Salmonella and reduce the abundance of competitive bacteria. Examples of non-selective pre-enrichment broths used to isolate Salmonella from food include Lactose, Universal Pre-enrichment, BPW, and Trypticase Soy broths. Tetrathionate (TT) and Rappaport–Vassiliadis (RV) broths are employed after a 24-h non-selective enrichment to select for Salmonella and hamper the growth of competitive bacteria. In this study, we tested a new formulation of TT broth that lacks brilliant green dye and has lower levels of TT . We employed this TT broth formulation in conjunction with a 6-h non-selective pre-enrichment period and determined that Salmonella recovery was possible one day earlier than standard food culture methods. We tested the shortened culture method in different non-selective enrichment broths, enumerated Salmonella in the non-selective enrichments, and used 16S rRNA gene sequencing to determine the proportional abundances of Salmonella in the TT and RV selective enrichments. Together these data revealed that a 6-h non-selective pre-enrichment reduces the levels of competitive bacteria inoculated into the selective TT and RV broths, enabling the recovery of Salmonella 1 day earlier than standard culture enrichment methods. PMID:28082968

  8. Capillary electrophoresis for the characterization of quantum dots after non-selective or selective bioconjugation with antibodies for immunoassay

    Directory of Open Access Journals (Sweden)

    Lai Edward PC

    2008-10-01

    Full Text Available Abstract Capillary electrophoresis coupled with laser-induced fluorescence was used for the characterization of quantum dots and their conjugates to biological molecules. The CE-LIF was laboratory-built and capable of injection (hydrodynamic and electrokinetic from sample volumes as low as 4 μL via the use of a modified micro-fluidic chip platform. Commercially available quantum dots were bioconjugated to proteins and immunoglobulins through the use of established techniques (non-selective and selective. Non-selective techniques involved the use of EDCHCl/sulfo-NHS for the conjugation of BSA and myoglobin to carboxylic acid-functionalized quantum dots. Selective techniques involved 1 the use of heterobifunctional crosslinker, sulfo-SMCC, for the conjugation of partially reduced IgG to amine-functionalized quantum dots, and 2 the conjugation of periodate-oxidized IgGs to hydrazide-functionalized quantum dots. The migration times of these conjugates were determined in comparison to their non-conjugated QD relatives based upon their charge-to-size ratio values. The performance of capillary electrophoresis in characterizing immunoconjugates of quantum dot-labeled IgGs was also evaluated. Together, both QDs and CE-LIF can be applied as a sensitive technique for the detection of biological molecules. This work will contribute to the advancements in applying nanotechnology for molecular diagnosis in medical field.

  9. Evaluación del Proceso Consultivo Ciudadano en Villa el Salvador, Lima, Peru

    NARCIS (Netherlands)

    J. Calderon (Julio); L. Marulanda (Liliana)

    2001-01-01

    textabstractEl presente informe contiene un estudio de caso sobre “Evaluación del Proceso Consultivo Ciudadano en Villa el Salvador, Lima, Perú” realizado para el Instituto de Estudios de Vivienda y Desarrollo Urbano - IHS (Institute for Housing and Urban Development Studies) y el Programa SINPA (Su

  10. Chinese-Peruvian Forum on Urban Culture Development Held in Lima

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    <正>The Chinese-Peruvian Forum on Urban Culture Development jointly sponsored by the CPAFFC and the Peruvian-Chinese Cultural Institute was held in Lima, capital of Peru, on May 22. A 32-member delegation led by Jing Dunquan, CPAFFC Vice Pres- ident,

  11. Jasmonic acid and herbivory differentially induce carnivore-attracting plant volatiles in Lima bean plants

    NARCIS (Netherlands)

    Dicke, M.; Gols, R.; Ludeking, D.; Posthumus, M.A.

    1999-01-01

    Lima bean plants respond to feeding damage of two-spotted spider mites (Tetranychus urticae) with the emission of a complex blend of volatiles that are products of several different biosynthetic pathways. These volatiles attract the carnivorous mite Phytoseiulus persimilis, a specialist predator of

  12. Evaluación del Proceso Consultivo Ciudadano en Villa el Salvador, Lima, Peru

    NARCIS (Netherlands)

    J. Calderon (Julio); L. Marulanda (Liliana)

    2001-01-01

    textabstractEl presente informe contiene un estudio de caso sobre “Evaluación del Proceso Consultivo Ciudadano en Villa el Salvador, Lima, Perú” realizado para el Instituto de Estudios de Vivienda y Desarrollo Urbano - IHS (Institute for Housing and Urban Development Studies) y el Programa SINPA

  13. Perancangan dan Simulasi Full Bridge Inverter Lima Tingkat dengan Dual Buck Converter Terhubung Jaringan Satu Fasa

    Directory of Open Access Journals (Sweden)

    Zamratul Fuadi

    2014-03-01

    Full Text Available Inverter merupakan perangkat elektronika daya yang berfungsi mengonversi sumber searah menjadi bolak-balik. Full bridge inverter adalah satu jenisnya yang mampu menghasilkan tegangan tiga tingkat jika menggunakan teknik modulasi unipolar. Penambahan sirkuit dual buck converter pada full bridge inverter mampu menghasilkan tegangan dalam lima tingkat. Dua saklar pada rangkaian dual buck converter switching pada frekuensi tinggi 20 kHz, sedangkan empat saklar pada full bridge inverter switching pada frekuensi rendah 50 Hz. Teknik modulasi in phase disposition PWM (PDPWM digunakan untuk mengatur penyalaan saklar dual buck converter. Keluaran inverter lima tingkat dibandingkan dengan tiga tingkat. Total harmonic distortion tegangan (THDV dan arus (THDi inverter lima tingkat bernilai 23.2281 % dan 23.0975 %, sedangkan inverter tiga tingkat sebesar 51.9302 % dan52.2458 %. Ketika daya 1004.08 watt disumbangkan ke jala-jala, inverter lima tingkat menghasilkan power factor senilai 0.99 dan THDi 4.1 %. Pada sumbangan daya yang sama, inverter tiga tingkat menghasilkan power factor sebesar 0.919 dan THDi bernilai 45.64 %.

  14. Risk perception: The social construction of spatial knowledge around climate change-related scenarios in Lima

    NARCIS (Netherlands)

    Miranda Sara, L.; Jameson, S.; Pfeffer, K.; Baud, I.

    2016-01-01

    Lima's environmental sustainability is threatened by increasing water scarcity, heavy rain events and limited attention for water vulnerability and climate change scenarios. In this paper we examine how knowledge construction and risk perception on water-related disaster risks and vulnerabilities

  15. Socio-cultural predictors of reading literacy in fourth graders in Lima, Peru

    NARCIS (Netherlands)

    Morales, S.; Verhoeven, L.T.W.; Leeuwe, J.F.J. van

    2008-01-01

    This study investigates socio-cultural cognitive literacy predictors for reading literacy (RL), tested in 314 fourth graders from two different levels of social economic status in Lima, Peru. The following variables were tested as predictors: word decoding, vocabulary, motivation to read, reading st

  16. Two new species of Anastrepha Schiner (Diptera, Tephritidae) closely related to Anastrepha pickeli Lima.

    Science.gov (United States)

    Canal, N A; Uramoto, K; Zucchi, R A

    2013-02-01

    Anastrepha entodonta n. sp. and Anastrepha hadropickeli n. sp. are described and illustrated. The new species belong to the spatulata group. Both species occur sympatrically with Anastrepha pickeli Lima in the semiarid region of the state of Minas Gerais, Brazil. Anastrepha hadropickeli occurs also in the semiarid of the state of Rio Grande do Norte, Brazil, where it was misidentified as A. pickeli.

  17. Psychometric Properties of Sexuality and the Mental Retardation Attitude Inventory (SMRAI) in University Student of Lima

    Science.gov (United States)

    Domínguez, Sergio A.; Rimachi, Marlon

    2014-01-01

    The aim was to analyze the psychometric properties of "Sexuality and the Mental Retardation Attitude Inventory" (SMRAI) in a sample of 144 psychology college students 2nd to the 9th, of a private university in Lima, of which 44 were males (30.6%) and 100 female (69.4%), aged between 17 and 43 years (average: 21.9). The confirmatory…

  18. Risk perception: The social construction of spatial knowledge around climate change-related scenarios in Lima

    NARCIS (Netherlands)

    Miranda Sara, L.; Jameson, S.; Pfeffer, K.; Baud, I.

    2016-01-01

    Lima's environmental sustainability is threatened by increasing water scarcity, heavy rain events and limited attention for water vulnerability and climate change scenarios. In this paper we examine how knowledge construction and risk perception on water-related disaster risks and vulnerabilities af

  19. Socio-cultural predictors of reading literacy in fourth graders in Lima, Peru

    NARCIS (Netherlands)

    Morales, S.; Verhoeven, L.T.W.; Leeuwe, J.F.J. van

    2008-01-01

    This study investigates socio-cultural cognitive literacy predictors for reading literacy (RL), tested in 314 fourth graders from two different levels of social economic status in Lima, Peru. The following variables were tested as predictors: word decoding, vocabulary, motivation to read, reading

  20. Field level risk assessment for root-knot nematodes in lima beans

    Science.gov (United States)

    Southern Root-Knot Nematode (RKN), Meloidogyne incognita, is a major yield limiting pest in lima beans (Phaseolus lunatus). RKN are not evenly distributed through fields and population dynamics are fluid making whole field management challenging. The objectives of this research were to characterize ...

  1. Early Genotoxic and Cytotoxic Effects of the Toxic Dinoflagellate Prorocentrum lima in the Mussel Mytilus galloprovincialis

    Science.gov (United States)

    Prego-Faraldo, María Verónica; Valdiglesias, Vanessa; Laffon, Blanca; Mendez, Josefina; Eirin-Lopez, Jose M.

    2016-01-01

    Okadaic acid (OA) and dinophysistoxins (DTXs) are the main toxins responsible for diarrhetic shellfish poisoning (DSP) intoxications during harmful algal blooms (HABs). Although the genotoxic and cytotoxic responses to OA have been evaluated in vitro, the in vivo effects of these toxins have not yet been fully explored. The present work fills this gap by evaluating the in vivo effects of the exposure to the DSP-toxin-producing dinoflagellate Prorocentrum lima during the simulation of an early HAB episode in the mussel Mytilus galloprovincialis. The obtained results revealed that in vivo exposure to this toxic microalgae induced early genotoxicity in hemocytes, as a consequence of oxidative DNA damage. In addition, the DNA damage observed in gill cells seems to be mainly influenced by exposure time and P. lima concentration, similarly to the case of the oxidative damage found in hemocytes exposed in vitro to OA. In both cell types, the absence of DNA damage at low toxin concentrations is consistent with the notion suggesting that this level of toxicity does not disturb the antioxidant balance. Lastly, in vivo exposure to growing P. lima cell densities increased apoptosis but not necrosis, probably due to the presence of a high number of protein apoptosis inhibitors in molluscs. Overall, this work sheds light into the in vivo genotoxic and cytotoxic effects of P. lima. In doing so, it also demonstrates for the first time the potential of the modified (OGG1) comet assay for assessing oxidative DNA damage caused by marine toxins in marine invertebrates. PMID:27231936

  2. Early Genotoxic and Cytotoxic Effects of the Toxic Dinoflagellate Prorocentrum lima in the Mussel Mytilus galloprovincialis

    Directory of Open Access Journals (Sweden)

    María Verónica Prego-Faraldo

    2016-05-01

    Full Text Available Okadaic acid (OA and dinophysistoxins (DTXs are the main toxins responsible for diarrhetic shellfish poisoning (DSP intoxications during harmful algal blooms (HABs. Although the genotoxic and cytotoxic responses to OA have been evaluated in vitro, the in vivo effects of these toxins have not yet been fully explored. The present work fills this gap by evaluating the in vivo effects of the exposure to the DSP-toxin-producing dinoflagellate Prorocentrum lima during the simulation of an early HAB episode in the mussel Mytilus galloprovincialis. The obtained results revealed that in vivo exposure to this toxic microalgae induced early genotoxicity in hemocytes, as a consequence of oxidative DNA damage. In addition, the DNA damage observed in gill cells seems to be mainly influenced by exposure time and P. lima concentration, similarly to the case of the oxidative damage found in hemocytes exposed in vitro to OA. In both cell types, the absence of DNA damage at low toxin concentrations is consistent with the notion suggesting that this level of toxicity does not disturb the antioxidant balance. Lastly, in vivo exposure to growing P. lima cell densities increased apoptosis but not necrosis, probably due to the presence of a high number of protein apoptosis inhibitors in molluscs. Overall, this work sheds light into the in vivo genotoxic and cytotoxic effects of P. lima. In doing so, it also demonstrates for the first time the potential of the modified (OGG1 comet assay for assessing oxidative DNA damage caused by marine toxins in marine invertebrates.

  3. Selma Lagerlöf kui ülima õiguse eestkostja / Kärt Hellerma

    Index Scriptorium Estoniae

    Hellerma, Kärt, 1956-

    1998-01-01

    Arvustus: Lagerlöf, Selma. Portugali keiser; Surmakutsar; Liljecrona kodu / tlk. Tõnu Arnover. Tallinn : Eesti Raamat, 1998. (Nobeli laureaat). Ilmunud ka kogumikus: Hellerma, Kärt. Kohanenud kirjandus : valik kirjanduskriitikat 1987-2006. Eesti Keele Sihtasutus : Tallinn, 2006. Lk. 155-157, pealk. Ülima õiguse eestkostja

  4. The tradition of analogy in the poetry of Murilo Mendes and Jorge de Lima

    Directory of Open Access Journals (Sweden)

    SERGIO ASSUNÇÃO

    2015-08-01

    Full Text Available This article aims at discussing the relevance of the poetry of Murilo Mendes and Jorge de Lima, from the tradition of analogy, beyond the surrealistic interference on the building of his poetics, within the context of modern Brazilian poetry in the twentieth century.

  5. Trichomonas foetus en el ganado lechero de Lima, Chiclayo y Pacasmayo

    Directory of Open Access Journals (Sweden)

    V. D. Stauffer

    1946-01-01

    Full Text Available Se han encontrado 15 casos de trichomoniasis genital bovina a Trichomonas foetus en Lima, Chiclayo y Pacasmayo, en ganado lechero Holstein en su mayor parte importado. De acuerdo con la literatura que disponemos éste es el primer informe sobre la existencia de tal enfermedad en el Perú.

  6. Evaluación del Proceso Consultivo Ciudadano en Villa el Salvador, Lima, Peru

    NARCIS (Netherlands)

    J. Calderon (Julio); L. Marulanda (Liliana)

    2001-01-01

    textabstractEl presente informe contiene un estudio de caso sobre “Evaluación del Proceso Consultivo Ciudadano en Villa el Salvador, Lima, Perú” realizado para el Instituto de Estudios de Vivienda y Desarrollo Urbano - IHS (Institute for Housing and Urban Development Studies) y el Programa SINPA (Su

  7. Implementation of the Human Talent Management through Competencies Model in a University in Metropolitan Lima

    Science.gov (United States)

    Rodríguez, Juan C.

    2015-01-01

    This article is a work proposal that aims to describe the methodology proposed by the Management of Personnel Management from a university in Lima, to implement a management model based on competencies which traceability involves various technical HR processes practiced in the organization and is aligned to institutional outcomes defined in the…

  8. Invasive or non invasive angiography? The role of conventional catheder angiography; Invasive oder nichtinvasive Angiographie? Die Rolle der ``klassischen`` Katheter-Angiographie

    Energy Technology Data Exchange (ETDEWEB)

    Hagen, B. [Martin-Luther-Krankenhaus, Berlin (Germany). Radiologische Abt.

    1997-07-01

    Within the last decade, diagnostic and interventional angiography have been developed to a high degree of performance, due to the widespread use of DSA, the miniaturisation of the puncture trauma and the introduction sets (catheters, sheaths), the development of high-tech materials (e.g., Nitinol guidewires) and the application of non-ionic, low osmolal contrast media. The specific risks of the procedure, thereby, have been significantly reduced, but could not be totally eliminated. To evaluate vascular diseases non-invasively, special attention was attributed to the progress of colour coded duplex, (spiral) CT-angiography and (CE)MR-angiography, based on the estbalished imaging with US, CT and MRT. The matter in question is whether or not they can substitute the role of conventional angiography as the `gold standard` of vessel imaging. Clinical validity and economic efficiency both determine the indication for the use of invasive or non-invasive methods. In diagnostic procedures, there is a growing tendency for the use of non-invasive techniques, like in imaging of the abdominal and thoracic aorta, the renal, pulmonary and extra- and intra-cranial arteries. Conventional angiography is still reserved for the evaluation of small vessels of the upper and lower extremities, and vessel status in preoperative conditions (carotid, celiac trunk, mesenteric and renal arteries and aneurysms of the cerebral vasculature). Fluoroscopic guiding of catheters and contrast enhancement in interventional procedures, however, cannot be substituted by alternative techniques in the foreseeable future. (orig.) [Deutsch] Diagnostische und therapiebezogene Angiographietechniken haben in den letzten Jahren durch die fast ausschliessliche Anwendung der DSA, durch Miniaturisierung des Punktionstraumas und der Einfuehrungsbestecke (Katheter, Schleusen), durch Entwicklung von High-tech-Materialien (z.B. Nitinolfuehrungsdraehte) und Verwendung nichtionischer, niederosmolaler Kontrastmittel

  9. Comparison between indocyanine green angiography and fluorescein angiography in normal cats.

    Science.gov (United States)

    Hayashi, Miri; Maehara, Seiya; Ito, Yosuke; Yamashita, Kazuto; Kubo, Akira; Nakade, Tetsuya

    2017-07-01

    To study a new approach to indocyanine green (ICG) angiography for contrasting the ocular fundus in cats. Six healthy laboratory cats. Fluorescein (FLUO) and ICG angiography were performed using an infrared-sensitive charged coupled device-equipped fundus camera on sedated cats. At 12.3 ± 3.4 s after ICG administration, the choroidal arteries could be seen extending radially from the optic disk. The choroidal veins became apparent at 16.2 ± 4.1 s alongside the choroidal arteries. Gradual fading of the choroidal vessels began 5.8 ± 1.5 min postdye administration and diffuse fluorescence of the fundus appeared. Diffuse fluorescence of the optic disk faded at about 18.8 ± 2.9 min. Mean arterial blood pressure at 1 and 3 min after ICG administration showed no significant change when compared to pre-administration (P > 0.05). However, 5 min (P = 0.054) and 10 min (P FLUO administration and its appearance in the ocular fundus was 15.7 ± 3.8 s. Retinal veins became apparent at 22.0 ± 3.6 s alongside retinal arteries. At 31.2 ± 4.1 s, full venous fluorescence was visualized throughout the entire fundus. While FLUO angiography shows only the retinal vessels, ICG angiography enabled visualization of the choroidal vasculature. ICG angiography provides clear resolution while remaining reliable and simple; thus, a combination of ICG and FLUO angiography shows promise as a diagnostic aid for clinical evaluation of various chorioretinal diseases in cats. © 2016 American College of Veterinary Ophthalmologists.

  10. Pedal angiography in peripheral arterial occlusive disease: first-pass i.v. contrast-enhanced MR angiography with blood pool contrast medium versus intraarterial digital subtraction angiography.

    Science.gov (United States)

    Kos, Sebastian; Reisinger, Clemens; Aschwanden, Markus; Bongartz, Georg M; Jacob, Augustinus L; Bilecen, Deniz

    2009-03-01

    The purpose of this study was to prospectively evaluate first-pass i.v. gadofosveset-enhanced MR angiography in patients with peripheral arterial occlusive disease for visualization of the pedal arteries and stenosis or occlusion of those arteries with intraarterial digital subtraction angiography as the reference standard. Twenty patients with peripheral arterial occlusive disease (nine women, 11 men; age-range 58-83 years) were prospectively enrolled. Gadofosveset first-pass contrast-enhanced MR angiography was performed with a 1.5-T system, a dedicated foot coil, and cuff compression to the calf. Arterial segments were assessed for degree of arterial stenosis, arterial visibility, diagnostic utility, and venous contamination. Detection of vessel stenosis or occlusion was evaluated in comparison with findings at digital subtraction angiography. The unpaired Student's t test was used to test arterial visibility with the two techniques. First-pass MR angiography with gadofosveset had good diagnostic utility in 83.9% of all segments and no venous contamination in 96.8% of all segments. There was no difference between the performance of intraarterial digital subtraction angiography and that of i.v. contrast-enhanced MR angiography in arterial visibility overall (p = 0.245) or in subgroup analysis of surgical arterial bypass targets (p = 0.202). The overall sensitivity, specificity, and accuracy of i.v. gadofosveset-enhanced MR angiography for characterization of clinically significant stenosis and occlusion were 91.4%, 96.1%, and 93.9%. In the subgroup analysis, the sensitivity, specificity, and accuracy were 85.5%, 96.5%, and 92.1%. Gadofosveset-enhanced MR angiography of the pedal arteries in patients with peripheral arterial occlusive disease has arterial visibility equal to that of digital subtraction angiography and facilitates depiction of clinically significant stenosis and occlusion.

  11. Violencia basada en género en zonas urbanas y urbano-marginales de Lima y Callao, 2007 - 2010

    OpenAIRE

    Pedro Mascaro-Sánchez; Susana García-Parra; Óscar Munares-García

    2012-01-01

    Objetivos: Determinar y comparar las características de la violencia en pobladores de zonas urbanas y urbano-marginales. Diseño: Estudio epidemiológico descriptivo. Institución: Escuela de Obstetricia, Facultad de Medicina, Universidad Nacional Mayor de San Marcos, Lima, Perú. Participantes: Mujeres de Lima y Callao. Intervenciones: Entre los años 2007 y 2010, se aplicó una entrevista estructurada a 3 971 mujeres de zonas urbanas y urbano-marginales de Lima y Callao. Se incluyó mujeres reside...

  12. An eLIMA model for the 67 s X-ray periodicity in CAL 83

    Science.gov (United States)

    Odendaal, A.; Meintjes, P. J.

    2017-01-01

    Supersoft X-ray sources (SSSs) are characterized by their low effective temperatures and high X-ray luminosities. The soft X-ray emission can be explained by hydrogen nuclear burning on the surface of a white dwarf (WD) accreting at an extremely high rate. A peculiar ˜67 s periodicity (P67) was previously discovered in the XMM-Newton light curves of the SSS CAL 83. P67 was detected in X-ray light curves spanning ˜9 years, but exhibits variability of several seconds on time-scales as short as a few hours, and its properties are remarkably similar to those of dwarf nova oscillations (DNOs). DNOs are short time-scale modulations (≲1 min) often observed in dwarf novae during outburst. DNOs are explained by the well established low-inertia magnetic accretor (LIMA) model. In this paper, we show that P67 and its associated period variability can be satisfactorily explained by an application of the LIMA model to the more `extreme' environment in a SSS (eLIMA), contrary to another recent study attempting to explain P67 and its associated variability in terms of non-radial g-mode oscillations in the extended envelope of the rapidly accreting white dwarf in CAL 83. In the eLIMA model, P67 originates in an equatorial belt in the WD envelope at the boundary with the inner accretion disc, with the belt weakly coupled to the WD core by a ˜105 G magnetic field. New optical light curves obtained with the Sutherland High-speed Optical Camera (SHOC) are also presented, exhibiting quasi-periodic modulations on time-scales of ˜1000 s, compatible with the eLIMA framework.

  13. Penilaian Tingkat Keberhasilan Relokasi PKL di Kawasan Pasar Waru Dan Simpang Lima, Semarang

    Directory of Open Access Journals (Sweden)

    Ummi Hanifah

    2015-04-01

    Full Text Available Abstrak: Di Kota Semarang jumlah PKL setiap tahunnya semakin meningkat dan mulai memberikan dampak negatif karena menempati ruang publik. Artikelini bertujuan untuk menilai tingkat keberhasilan implementasi penertiban PKL menurut pandangan pedagang dan pemerintah serta faktor penyebabnya. Kebijakan penertiban PKL yang menjadi fokus penelitian adalah program relokasi PKL Citarum dan Kartini ke Pasar Waru serta program penataan sarana aktivitas PKL Simpang Lima. Pelaksanaan relokasi PKL dinilai sulit dilaksanakan karena terjadi penolakan dan menganggap Pasar Waru tidak representatif untuk berdagang. Sedangkan pelaksanaan penataan PKL Simpang Lima tergolong cukup lancar. Namun setelah adanya penataan, pendapatan pedagang justru semakin menurun. Berdasarkan analisis diketahui bahwa menurut pedagang dan pemerintah relokasi telah berhasil pada aspek fisik namun tidak berhasil pada aspek ekonomi.Kata kunci: Relokasi, pedagang kaki lima, SemarangAbstract: The number of street vendors in the city of Semarang is increasing every year and starting to give a negative impact because they occupy public space. This study aims to assess whether the implementation is successful from the point of view of the government as well as its contributing factor. The focus of this research are the relocation of Citarum and Kartini street vendors to Waru Market and the facility planning for Simpang Lima street vendors. The street vendor relocation is considered difficult to implement due to the vendors’ rejection; whereas, the planning of street vendor facilities in Simpang Lima is considered as succesful. However, after the relocation, the revenue of the merchants decreased. The analysis shows that the relocation is successful in physical aspect only but unsuccessful in economic aspect.Keywords:Relocation, street vendors, Semarang.

  14. Multidetector computed tomography pulmonary angiography in childhood acute pulmonary embolism

    Energy Technology Data Exchange (ETDEWEB)

    Tang, Chun Xiang; Zhang, Long Jiang; Lu, Guang Ming [Medical School of Nanjing University, Department of Medical Imaging, Jinling Hospital, Nanjing, Jiangsu (China); Schoepf, U.J. [Medical School of Nanjing University, Department of Medical Imaging, Jinling Hospital, Nanjing, Jiangsu (China); Medical University of South Carolina, Department of Radiology and Radiological Science, Charleston, SC (United States); Medical University of South Carolina, Department of Pediatrics, Charleston, SC (United States); Chowdhury, Shahryar M. [Medical University of South Carolina, Department of Pediatrics, Charleston, SC (United States); Fox, Mary A. [Medical University of South Carolina, Department of Radiology and Radiological Science, Charleston, SC (United States)

    2015-09-15

    Pulmonary embolism is a life-threatening condition affecting people of all ages. Multidetector row CT pulmonary angiography has improved the imaging of pulmonary embolism in both adults and children and is now regarded as the routine modality for detection of pulmonary embolism. Advanced CT pulmonary angiography techniques developed in recent years, such as dual-energy CT, have been applied as a one-stop modality for pulmonary embolism diagnosis in children, as they can simultaneously provide anatomical and functional information. We discuss CT pulmonary angiography techniques, common and uncommon findings of pulmonary embolism in both conventional and dual-energy CT pulmonary angiography, and radiation dose considerations. (orig.)

  15. Aneurysmal re-rupture during selective cerebral angiography

    Energy Technology Data Exchange (ETDEWEB)

    Zaehringer, Markus; Gossmann, Axel; Krueger, Karsten; Trenschel, Gertrud; Landwehr, Peter [Department of Radiology, University of Cologne, Joseph-Stelzmann-Strasse 9, 50924 Cologne (Germany); Wedekind, Christoph [Department of Neurosurgery, University of Cologne, Joseph-Stelzmann-Strasse 9, 50924 Cologne (Germany)

    2002-07-01

    Two cases of aneurysmal re-rupture during intracranial angiography are presented. This event is accompanied by disastrous consequences with regard to the clinical condition of the patient, as is evident from the cases presented as well as from the literature. Acute alterations of intraluminal pressure as well as a time interval of less than 6 h seems to increase the risk of re-bleeding during angiography. The introduction of and the growing experience with CT and MR angiography may in the near future provide sufficient diagnostic information for surgical planning and thus help to overcome the risk of aneurysmal re-rupture during intra-arterial angiography. (orig.)

  16. Fractional flow reserve versus angiography for guiding percutaneous coronary intervention

    DEFF Research Database (Denmark)

    Tonino, Pim A L; De Bruyne, Bernard; Pijls, Nico H J

    2009-01-01

    BACKGROUND: In patients with multivessel coronary artery disease who are undergoing percutaneous coronary intervention (PCI), coronary angiography is the standard method for guiding the placement of the stent. It is unclear whether routine measurement of fractional flow reserve (FFR; the ratio......-eluting stents guided by angiography alone or guided by FFR measurements in addition to angiography. Before randomization, lesions requiring PCI were identified on the basis of their angiographic appearance. Patients assigned to angiography-guided PCI underwent stenting of all indicated lesions, whereas those...

  17. Noninvasive detection of vertebral artery stenosis: a comparison of contrast-enhanced MR angiography, CT angiography, and ultrasound.

    Science.gov (United States)

    Khan, Sofia; Rich, Philip; Clifton, Andrew; Markus, Hugh S

    2009-11-01

    Vertebral stenosis is associated with a high risk of recurrent stroke, but noninvasive imaging techniques to identify it have lacked sensitivity. Contrast-enhanced MR angiography and CT angiography have been recently developed and appear to have better sensitivity. However, no prospective studies have compared both of these techniques with ultrasound against the gold standard of intra-arterial angiography in the same group of patients. Forty-six patients were prospectively recruited in whom intra-arterial angiography was being performed. Contrast-enhanced MR angiography, CT angiography, and duplex ultrasound were also performed. Angiographic images were analyzed blinded to patient identity by 2 experienced neuroradiologists. Contrast-enhanced MR angiography had the highest sensitivity and specificity (Radiologist 1, 0.83 and 0.91, respectively; Radiologist 2, 0.89 and 0.87) for detecting >or=50% stenosis. CT angiography had good sensitivity (Radiologist 1, 0.68; Radiologist 2, 0.58) and excellent specificity (Radiologist 1, 0.92; Radiologist 2, 0.93), whereas duplex had low sensitivity (0.44) but excellent specificity (0.95). For vertebral origin stenosis >or=50%, sensitivities were similar for contrast-enhanced MR angiography (Radiologist 1, 0.91; Radiologist 2, 0.82) but relatively higher for CT angiography (Radiologist 1, 0.82; Radiologist 2, 0.82) and duplex (0.67). Contrast-enhanced MR angiography is the most sensitive noninvasive technique to detect vertebral artery stenosis and also has high specificity. CT angiography has good sensitivity and high specificity. In contrast, ultrasound has low sensitivity and will miss many vertebral stenoses.

  18. Evaluation of Patients’ Exposure during Angiography and Angioplasty Procedures in the Angiography Department of Shahid Madani Hospital in Tabriz

    Directory of Open Access Journals (Sweden)

    Asghar Mesbahi

    2009-03-01

    Full Text Available Introduction: Coronary angiography and angioplasty procedures lead to significant radiation exposure of patients. In the current study, the average radiation dose to patients during angiography in the Angiography Department of Shahid-Madani Hospital was determined. Materials and Methods: An image intensifier based angiography unit (Philips BH 3000 was used for angiography procedures. The accuracy of the internal dosimeter was verified. Dose-area products (DAP of patients (236 cases during fluoroscopy and cine acquisition were recorded. Analyzing the data, the average radiation doses to patients for angiography and angioplasty and also for fluoroscopy and cine acquisition were determined. Additionally, the average fluoroscopy time for all patients was estimated. Results: The average DAPs of 23.7 and 91.5 Gycm2 were estimated for angiography and angioplasty respectively. Patient doses including fluoroscopy, cine acquisition and the total dose for angiography were 2, 7.7 and 3.8 times lower than angioplasty procedures respectively. Average fluoroscopy time was 1.9 times lower for angiography compared to angioplasty. Discussion and Conclusion: Fluoroscopy time and patient dose during fluoroscopy were in good agreement with other studies. However, the dose to patients during angioplasty was higher compared to other reports. To reduce patient dose in angioplasty procedures, the use of the lowest available frame rate, smallest field size and retraining of operators and technologists are recommended.

  19. Discordance between CT and angiography in the PIOPED II study.

    Science.gov (United States)

    Wittram, Conrad; Waltman, Arthur C; Shepard, Jo-Anne O; Halpern, Elkan; Goodman, Lawrence R

    2007-09-01

    To retrospectively evaluate the causes of discordant computed tomographic (CT)-angiographic readings from the Prospective Investigation of Pulmonary Embolism Diagnosis, or PIOPED, II study. Institutional review board approval was obtained for this HIPAA-compliant study. Of 1036 patients suspected of having pulmonary embolism who were examined with CT, 226 underwent angiography; 206 patients had concordant results and 20 had discordant results according to two independent readers. Of these 20 patients, 10 were men and 10 were women (mean age, 49 years). Among the 20 studies with discordant results, central readers identified seven cases as negative and 13 as positive for pulmonary embolism at CT; these findings were reversed at angiography. Side-by-side comparisons of discordant studies were performed in consensus. The time between CT and angiography and all locations of pulmonary embolism vascular territory were recorded. The McNemar binomial test was used. One patient had false-positive findings at angiography, 13 patients had false-negative findings at angiography, and two patients had false-negative findings at CT. Four patients had true-negative findings at CT; however, findings were positive for thrombus at angiography. The sensitivity for the detection of pulmonary embolism was 87% for CT and 32% for angiography (P=.007). The largest missed thrombus at angiography was subsegmental in eight patients, segmental in two patients, and lobar in three patients; at CT it was subsegmental in two patients. The mean time between CT and angiography was 40 hours+/-21 (standard deviation) (range, 10-97 hours). In the interval between CT and angiography, thrombi can remain the same, resolve, develop, or result from angiography. Copyright (c) RSNA, 2007.

  20. Assessment of anemia during CT pulmonary angiography

    Energy Technology Data Exchange (ETDEWEB)

    Jung, Caroline, E-mail: cjung@uke.de [Department of Diagnostic and Interventional Radiology, University Hospital Eppendorf, Martinistrasse 52, 20246 Hamburg (Germany); Groth, Michael; Bley, Thorsten A.; Henes, Frank O. [Department of Diagnostic and Interventional Radiology, University Hospital Eppendorf, Martinistrasse 52, 20246 Hamburg (Germany); Treszl, András [Department of Medical Biometry and Epidemiology, University Hospital Eppendorf, Martinistrasse 52, 20246 Hamburg (Germany); Adam, Gerhard; Bannas, Peter [Department of Diagnostic and Interventional Radiology, University Hospital Eppendorf, Martinistrasse 52, 20246 Hamburg (Germany)

    2012-12-15

    Objectives: Anemia is associated with increased mortality in patients with acute symptomatic pulmonary embolism (PE). The purpose of this study was to evaluate the feasibility of Hounsfield unit (HU) measurements on the single unenhanced trigger slice of pulmonary CT angiography scans for diagnosis of anemia. Material and Methods: 150 consecutive patients (median age 64 ± 16 years) with suspected PE underwent pulmonary CT angiography. Two radiologists, blinded to laboratory results, performed HU measurements in the single unenhanced trigger scan independently by region-based analysis (ROI). HU values from ascending and descending aorta and the calculated mean of both were correlated with serum hemoglobin levels. Inter- and intraobserver variability was determined for HU measurements, and ROC analysis was performed for diagnosis of anemia. Calculated linear models were used to assess formulas for estimation of hemoglobin levels from HU measurements. Results: HU measurements revealed high intra- and interrater reliability (ICC > 0.981 and ICC > 0.965, respectively). Calculated mean HU values showed a strong correlation with serum hemoglobin levels (r = 0.734), which allowed generation of different formulas for calculation of hemoglobin levels from HU measurements. ROC analyses confirmed a high sensitivity (80.4 for men; 91.3 for women) and specificity (84.0 for men; 84.9 for women) for diagnosing anemia. Conclusion: Diagnosis of anemia and quantification of hemoglobin levels upon a single unenhanced trigger scan of pulmonary CT angiography is feasible. We suggest disclosing the anemic state in the radiological report, independent of the presence of PE, since anemia carries increased risks of morbidity and mortality.

  1. Frecuencia de Leptospira spp en porcinos de crianza tecnificada y de traspatio beneficiados en dos mataderos de Lima

    National Research Council Canada - National Science Library

    Anampa V., Luis; Rivera G., Hermelinda; Falcon P., Nestor; Arainga R., Mariluz; Ramirez V., Mercy

    2012-01-01

    El objetivo del estudio fue determinar la frecuencia de anticuerpos contra Leptospira spp en porcinos provenientes de crianza tecnificada (5 granjas, n = 163) y de traspatio (11 criaderos, n = 133) del valle de Lima...

  2. Association of Roadway Proximity with Indoor Air Pollution in a Peri-Urban Community in Lima, Peru

    National Research Council Canada - National Science Library

    Underhill, Lindsay J; Bose, Sonali; Williams, D'Ann L; Romero, Karina M; Malpartida, Gary; Breysse, Patrick N; Klasen, Elizabeth M; Combe, Juan M; Checkley, William; Hansel, Nadia N

    2015-01-01

    .... Additionally, domestic allergen exposure is unknown in such populations. We conducted a pilot study of 25 homes in peri-urban Lima, Peru to estimate the effects of roadway proximity and season on residential concentrations...

  3. Striatocapsular infarction: MRI and MR angiography

    Energy Technology Data Exchange (ETDEWEB)

    Croisille, P. (Dept. of Neuroradiology, Hopital Neurologique et Neurochirurgical Pierre Wertheimer, Lyon (France)); Turjman, F. (Dept. of Neuroradiology, Hopital Neurologique et Neurochirurgical Pierre Wertheimer, Lyon (France)); Croisile, B. (Dept. of Neurology, Hopital Neurologique et Neurochirurgical Pierre Wertheimer, Lyon (France)); Tournut, P. (Dept. of Neuroradiology, Hopital Neurologique et Neurochirurgical Pierre Wertheimer, Lyon (France)); Laharotte, J.C. (Dept. of Neuroradiology, Hopital Neurologique et Neurochirurgical Pierre Wertheimer, Lyon (France)); Aimard, G. (Dept. of Neurology, Hopital Neurologique et Neurochirurgical Pierre Wertheimer, Lyon (France)); Trillet, M. (Dept. of Neurology, Hopital Neurologique et Neurochirurgical Pierre Wertheimer, Lyon (France)); Duquesnel, J. (Dept. of Neuroradiology, Hopital Neurologique et Neurochirurgical Pierre Wertheimer, Lyon (France)); Froment, J.C. (Dept. of Neuroradiology, Hopital Neurologique et Neurochirurgical Pierre

    1994-08-01

    We present a case of left striatocapsular infarction manifest clinically as a transient right hemiparesis. MRI showed a left striatocapsular infarct. Striatocapsular infarction, unlike lacunar infarction, is often associated with occlusive disease of the carotid artery. In order to screen the carotid vessels, cervical MR angiography (MRA) was performed during the same examination, demonstrating a left internal carotid artery occlusion, confirmed by contrast arteriography. MRA, a noninvasive modality, can be a useful adjunct to MRI, when diagnostic information concerning the cervical carotid artery is needed. (orig.)

  4. Computed tomography angiography of coronary artery bypass grafts: robustness in emergency and clinical routine settings.

    Science.gov (United States)

    Heye, Tobias; Kauczor, Hans-Ulrich; Szabo, Gabor; Hosch, Waldemar

    2014-03-01

    There is a high probability for presence of irregular heart rates and artifacts in patients with previous coronary artery bypass graft (CABG) surgery. Previously reported diagnostic performance of ECG-gated 64-slice dual-source computer tomography angiography (CTA) in this patient group is based on pre-selection for normal heart rate and routine clinical setting. To investigate image quality and diagnostic performance of CTA in patients with previous CABG surgery in various clinical settings. Fifty-six non-selected, consecutive patients (110 grafts, 44 arterial, 66 venous) with previous CABG surgery were prospectively examined using a dual-source 64-slice CT (Siemens Definition, Forchheim, Germany) without utilization of CT-related pharmaceutical heart rate control. Patients were stratified according to the clinical setting: planned redo-cardiac surgery; emergency CTA within 30 days after CABG surgery; routine follow-up after CABG surgery. A reference standard was available for 30 patients (53.6%; 67/110 grafts). Image quality, artifacts, and graft patency were independently assessed by two observers. All CTAs were diagnostic despite the presence of irregular heart rhythm (25% of cases) and artifacts (72.7% of grafts). CTA was accurate in all patient groups in assessing graft patency (97.9% sensitivity; 100% specificity; 98.5% accuracy) but artifacts decreased diagnostic performance for stenosis detection (60% sensitivity; 88.6% specificity; 84.1% accuracy). Arterial grafts exhibited more surgical clip artifacts compared to venous grafts, which predominantly showed motion artifacts. Overall diagnostic quality was rated excellent in 70.9%/56.4%, good in 23.4%/39.1%, and sufficient in 5.5%/4.5% by each observer, respectively. CTA detected acute findings in 10 cases (graft bleeding, graft occlusion, pericardial hematoma, sternal instability with retrosternal abscess formation, pericardial effusion, left ventricle thrombus) in the emergency group; seven cases required

  5. Pyrrolo- and pyridomorphinans: non-selective opioid antagonists and delta opioid agonists/mu opioid partial agonists.

    Science.gov (United States)

    Kumar, V; Clark, M J; Traynor, J R; Lewis, J W; Husbands, S M

    2014-08-01

    Opioid ligands have found use in a number of therapeutic areas, including for the treatment of pain and opiate addiction (using agonists) and alcohol addiction (using antagonists such as naltrexone and nalmefene). The reaction of imines, derived from the opioid ligands oxymorphone and naltrexone, with Michael acceptors leads to pyridomorphinans with structures similar to known pyrrolo- and indolomorphinans. One of the synthesized compounds, 5e, derived from oxymorphone had substantial agonist activity at delta opioid receptors but not at mu and/or kappa opioid receptors and in that sense profiled as a selective delta opioid receptor agonist. The pyridomorphinans derived from naltrexone and naloxone were all found to be non-selective potent antagonists and as such could have utility as treatments for alcohol abuse.

  6. Effects of the non-selective phosphodiesterase inhibitor pentoxifylline on regional cerebral blood flow and large arteries in healthy subjects

    DEFF Research Database (Denmark)

    Kruuse, Christina; Jacobsen, T B; Thomsen, Lars Lykke

    2000-01-01

    -inhalation SPECT. High-frequency ultrasound was used for measurements of temporal and radial artery diameter. Cyclic guanosine monophosphate (cGMP) and cyclic adenosine monophosphate (cAMP) concentrations were assessed in plasma. Except for increased heart rate (P blood pressure (P ... or to other mechanisms is not clear. In the present double-blind crossover study, 10 healthy subjects received pentoxifylline 300 mg or placebo intravenously on separate days. Blood flow velocity in the middle cerebral artery (V(mca)) was recorded by transcranial Doppler and rCBF was measured using (133)Xenon......The vasodilating properties of the non-selective phosphodiesterase (PDE) inhibitor pentoxifylline were evaluated. Pentoxifylline has been reported to increase cerebral blood flow (CBF) and improve recovery rate of stroke patients. Whether these results are due to a dilating effect on arteries...

  7. Non-selective beta-adrenergic blockade prevents reduction of the cerebral metabolic ratio during exhaustive exercise in humans

    DEFF Research Database (Denmark)

    Larsen, T.S.; Rasmussen, P.; Overgaard, M.

    2008-01-01

    of a non-selective beta-adrenergic (beta(1) + beta(2)) receptor antagonist (propranolol) reduced heart rate (69 +/- 8 to 58 +/- 6 beats min(-1)) and exercise capacity (239 +/- 42 to 209 +/- 31 W; P exercise with propranolol, the increase in a......Intense exercise decreases the cerebral metabolic ratio of oxygen to carbohydrates [O(2)/(glucose + (1/2)lactate)], but whether this ratio is influenced by adrenergic stimulation is not known. In eight males, incremental cycle ergometry increased arterial lactate to 15.3 +/- 4.2 mm (mean +/- s.......d.) and the arterial-jugular venous (a-v) difference from -0.02 +/- 0.03 mm at rest to 1.0 +/- 0.5 mm (P increased from 0.7 +/- 0.3 to 0.9 +/- 0.1 mm (P

  8. Comparison of cardiovascular thrombotic events in patients with osteoarthritis treated with rofecoxib versus nonselective nonsteroidal anti-inflammatory drugs (ibuprofen, diclofenac, and nabumetone).

    Science.gov (United States)

    Reicin, Alise S; Shapiro, Deborah; Sperling, Rhoda S; Barr, Eliav; Yu, Qinfen

    2002-01-15

    Aspirin, nonselective nonsteroidal anti-inflammatory drugs (NSAIDs), and specific cyclooxygenase-2 (COX-2) inhibitors each have distinctive effects on COX-1-mediated thromboxane biosynthesis, the major determinant of platelet aggregation. It is unclear whether these effects are associated with differences in thrombogenic risks. To compare the risk for thrombotic cardiovascular events among patients receiving rofecoxib, nonselective NSAIDs, and placebo, cardiovascular safety was assessed in 5,435 participants in 8 phase IIB/III osteoarthritis trials. The median treatment exposure was 31/2 months. The primary end point assessed was the risk of any arterial or venous thrombotic cardiovascular adverse event (AE). A second analysis assessed differences in the Anti-Platelet Trialists' Collaboration (APTC) events, a cluster end point that consists of the combined incidence of (1) cardiovascular, hemorrhagic, and unknown death; (2) myocardial infarction; and (3) cerebrovascular accident. Similar rates of thrombotic cardiovascular AEs were reported with rofecoxib, placebo, and comparator nonselective NSAIDs (ibuprofen, diclofenac, or nabumetone). In trials that compared rofecoxib with NSAIDs, the incidence of thrombotic cardiovascular AEs was 1.93/100 patient-years in the rofecoxib treatment group compared with 2.27/100 patient-years in the combined nonselective NSAID group. In trials that compared rofecoxib with placebo, the incidence of thrombotic cardiovascular AEs was 2.71/100 patient-years in the rofecoxib group compared with 2.57/100 patient-years in the placebo group. Consistent with the risks of cardiovascular AEs, similar rates of APTC events were reported with rofecoxib, placebo, and comparator nonselective NSAIDs. Thus, in the rofecoxib osteoarthritis development program, there was no difference between rofecoxib, comparator nonselective NSAIDs, and placebo in the risks of cardiovascular thrombotic events.

  9. Analysis of enlarged images using time-of-flight magnetic resonance angiography, computed tomography, and conventional angiography.

    Science.gov (United States)

    Heo, Yeong-Cheol; Lee, Hae-Kag; Yang, Han-Jun; Cho, Jae-Hwan

    2014-12-01

    This study aimed to assess the accuracy of time-of-flight magnetic resonance angiography, computed tomography, and conventional angiography in depicting the actual length of the blood vessels. Three-dimensional time-of-flight magnetic resonance angiography and computed tomography angiography were performed using a flow phantom model that was 2.11 mm in diameter and had a total area of 0.26 cm(2). After this, volume rendering technique and the maximum intensity projection method as well as two-dimensional digital subtraction angiography and three-dimensional rotational angiography based on conventional angiography were conducted. For three-dimensional time-of-flight magnetic resonance angiography, 8 channel sensitivity encoding (SENSE) head coil for the 3.0 Tesla equipment was used. Fluid was added to the normal saline solution at various rates, such as 11.4, 20.0, 31.4, 40.0, 51.5, 60.0, 71.5, 80.1, 91.5, and 100.1 cm/s using an automatic contrast media injector. Each image was thoroughly examined. After reconstructing the image using the maximum intensity projection method, the length of the conduit in the center of the coronal plane was measured 30 times. After performing computed tomography angiography with the 64-channel CT scanner and 16-channel CT scanner, the images were sent to TeraRecon. Then, the length of the conduit in the center of the coronal plane of each image was measured 30 times after reconstructing the images using volume rendering and maximum intensity projection techniques. For conventional angiography, three-dimensional rotational angiography and two-dimensional digital subtraction angiography were used. Images obtained by three-dimensional rotational angiography were reconstructed and enhanced by 33, 50, and 100 % in the 128 Matrix and the 256 Matrix, respectively on the Xtra Vision workstation. The maximum intensity projection was used for the reconstruction, and the length of the conduit was measured 30 times in the center of the coronal

  10. Cilantro microbiome before and after nonselective pre-enrichment for Salmonella using 16S rRNA and metagenomic sequencing.

    Science.gov (United States)

    Jarvis, Karen G; White, James R; Grim, Christopher J; Ewing, Laura; Ottesen, Andrea R; Beaubrun, Junia Jean-Gilles; Pettengill, James B; Brown, Eric; Hanes, Darcy E

    2015-08-12

    Salmonella enterica is a common cause of foodborne gastroenteritis in the United States and is associated with outbreaks in fresh produce such as cilantro. Salmonella culture-based detection methods are complex and time consuming, and improvments to increase detection sensitivity will benefit consumers. In this study, we used 16S rRNA sequencing to determine the microbiome of cilantro. We also investigated changes to the microbial community prior to and after a 24-hour nonselective pre-enrichment culture step commonly used by laboratory analysts to resuscitate microorganisms in foods suspected of contamination with pathogens. Cilantro samples were processed for Salmonella detection according to the method in the United States Food and Drug Administration Bacteriological Analytical Manual. Genomic DNA was extracted from culture supernatants prior to and after a 24-hour nonselective pre-enrichment step and 454 pyrosequencing was performed on 16S rRNA amplicon libraries. A database of Enterobacteriaceae 16S rRNA sequences was created, and used to screen the libraries for Salmonella, as some samples were known to be culture positive. Additionally, culture positive cilantro samples were examined for the presence of Salmonella using shotgun metagenomics on the Illumina MiSeq. Time zero uncultured samples had an abundance of Proteobacteria while the 24-hour enriched samples were composed mostly of Gram-positive Firmicutes. Shotgun metagenomic sequencing of Salmonella culture positive cilantro samples revealed variable degrees of Salmonella contamination among the sequenced samples. Our cilantro study demonstrates the use of high-throughput sequencing to reveal the microbiome of cilantro, and how the microbiome changes during the culture-based protocols employed by food safety laboratories to detect foodborne pathogens. Finding that culturing the cilantro shifts the microbiome to a predominance of Firmicutes suggests that changing our culture-based methods will improve

  11. Stretch-activated nonselective cation, Cl- and K+ channels in apical membrane of epithelial cells of Reissner's membrane.

    Science.gov (United States)

    Yeh, T H; Tsai, M C; Lee, S Y; Hsu, M M; Tran Ba Huy, P

    1997-07-01

    Ion channels on the apical membrane of epithelial cells (the surface facing the endolymph) of acutely isolated Reissner's membrane from guinea-pig cochlea were investigated by using patch-clamp technique in cell-attached and inside-out configurations. Three types of ion channel were identified: namely, a stretch-activated nonselective cation, a chloride and a potassium channel. When the pipette was filled with high-K+ endolymph-like solution, the most significant channel activity was nonselective cation channels (85/110, 77% patches). The current versus voltage relationship was linear with a unitary conductance of 22.1 +/- 0.4 pS and reversal potential (Vr) of 2.3 +/- 0.8 mV (n = 18). The channel exhibited a lower conductance (14.0 +/- 0.6 pS, n = 8) to Ca2+. The open probability was low (NPo approximately 0.1) in cell-attached configuration under +60 mV pipette potential and increased when the membrane was stretched with negative pressure. The channel was blocked by 10 microM extracellular Gd3+. The two other types of channels were a small voltage-sensitive Cl- channel (6.0 +/- 0.3 pS; 91/99, 92% patches) and a K+ channel (approximately 30 pS; 29/191, 15% patches). These channels might play roles in the regulation of cell volume, in balancing the hydrostatic pressure across Reissner's membrane and in maintaining the electrochemical composition of endolymph.

  12. Similar reductions in the risk of human colon cancer by selective and nonselective cyclooxygenase-2 (COX-2 inhibitors

    Directory of Open Access Journals (Sweden)

    Alshafie Galal A

    2008-08-01

    Full Text Available Abstract Background Epidemiologic and laboratory investigations suggest that aspirin and other nonsteroidal anti-inflammatory drugs (NSAIDs have chemopreventive effects against colon cancer perhaps due at least in part to their activity against cyclooxygenase-2 (COX-2, the rate-limiting enzyme of the prostaglandin cascade. Methods We conducted a case control study of colon cancer designed to compare effects of selective and non-selective COX-2 inhibitors. A total of 326 incident colon cancer patients were ascertained from the James Cancer Hospital, Columbus, Ohio, during 2003–2004 and compared with 652 controls with no history of cancer and matched to the cases at a 2:1 ratio on age, race, and county of residence. Data on the past and current use of prescription and over the counter medications and colon cancer risk factors were ascertained using a standardized risk factor questionnaire. Effects of COX-2 inhibiting agents were quantified by calculating odds ratios (OR and 95% confidence intervals. Results Results showed significant risk reductions for selective COX-2 inhibitors (OR = 0.31, 95% CI = 0.16–0.57, regular aspirin (OR = 0.33, 95% CI = 0.20–0.56, and ibuprofen or naproxen (0.28, 95% CI = 0.15–0.54. Acetaminophen, a compound with negligible COX-2 activity and low dose aspirin (81 mg produced no significant change in the risk of colon cancer. Conclusion These results suggest that both non-selective and selective COX-2 inhibitors produce significant reductions in the risk of colon cancer, underscoring their strong potential for colon cancer chemoprevention.

  13. Estudio sobre la adaptación apical de conos maestros de gutapercha en conductos radiculares instrumentados con limas Lightspeed

    OpenAIRE

    Pumarola Suñé, José; García Campaña, Ana M.; Brau Aguadé, Esteban; Canalda Sahli, Carlos

    2000-01-01

    El objetivo de este trabajo fue establecer la coincidencia entre el calibre del cono maestro apical y la lima maestra apical, así como medir cualitativamente la adaptación de diferentes marcas de conos de gutapercha en el tercio apical de conductos radiculares instrumentados con limas Lightspeed. Se instrumentaron 100 conductos de molares naturales extraídos con el sistema Lightspeed. Las muestras se distribuyeron aleatoriamente en cinco grupos. Cada grupo fue obturado mediante condensación l...

  14. Estrés, ansiedad y depresión en magistrados de Lima, Perú Stress, anxiety and depression in magistrates from Lima, Peru

    Directory of Open Access Journals (Sweden)

    Alberto Perales

    2011-12-01

    Full Text Available Objetivos. Determinar los niveles de estrés general y laboral, depresión y ansiedad en magistrados (jueces y fiscales del Distrito Judicial de Lima, Perú. Materiales y métodos. Estudio transversal y descriptivo. De una población de 1137 magistrados del Poder Judicial y del Ministerio Público del Distrito Jurisdiccional de Lima se tomó una muestra aleatoria estratificada donde cada institución constituyó un estrato. La muestra estuvo conformada por 287 magistrados: 138 fiscales y 149 jueces. Se aplicó un cuestionario compuesto por cuatro instrumentos para determinar los niveles de estrés general y laboral, ansiedad y depresión, previo consentimiento informado. Resultados. El estrés general estuvo presente en el 18,5 % de los magistrados, el estrés laboral en 33,7 %, ansiedad en 12,5 % y depresión en 15,0 %. Estas tres condiciones estuvieron presentes en el 6,6 % de los magistrados, y al menos una estuvo presente en el 25,9 %. El estrés general estaba asociado con la depresión (OR: 4,9; IC95 % 1,6-15,1 y ansiedad (OR: 8,5; IC95 % 2,5-28,6 en el modelo de regresión logística. Conclusiones. Un porcentaje significativo de magistrados del Distrito Judicial de Lima presentan altos niveles de estrés, ansiedad y depresión; un cuarto de los encuestados presentan, al menos, una de estas condiciones. Se recomienda que los programas de intervención y prevención se dirijan al manejo del estrés, ansiedad y depresión en conjunto, dada su alta asociación.Objective. To measure the general and work related stress, depression and anxiety in Magistrates (Judges and District Attorneys of Lima Judicial District. Material and methods. We carried out a transversal and descriptive study. A population of 1137 magistrates from the Lima Jurisdictional District of the Judicial System, was randomly sampled by a strata representing every agency of the Judicial System. The final sample included 287 magistrates: 138 District Attorneys and 149 Judges

  15. Multi-section CT angiography compared with digital subtraction angiography in diagnosing major arterial hemorrhage in inflammatory pancreatic disease

    Energy Technology Data Exchange (ETDEWEB)

    Hyare, Harpreet [Department of Imaging, University College London Hospitals NHS Foundation Trust, University College Hospital, 235 Euston Road, London NW1 2BU (United Kingdom)]. E-mail: hhyare@doctors.org.uk; Desigan, Sharmini [Department of Imaging, University College London Hospitals NHS Foundation Trust, University College Hospital, 235 Euston Road, London NW1 2BU (United Kingdom); Nicholl, Helen [Department of Imaging, University College London Hospitals NHS Foundation Trust, University College Hospital, 235 Euston Road, London NW1 2BU (United Kingdom); Guiney, Michael J. [Department of Imaging, University College London Hospitals NHS Foundation Trust, University College Hospital, 235 Euston Road, London NW1 2BU (United Kingdom); Brookes, Jocelyn A. [Department of Imaging, University College London Hospitals NHS Foundation Trust, University College Hospital, 235 Euston Road, London NW1 2BU (United Kingdom); Lees, William R. [Department of Imaging, University College London Hospitals NHS Foundation Trust, University College Hospital, 235 Euston Road, London NW1 2BU (United Kingdom)

    2006-08-15

    Purpose: Major arterial hemorrhage is an uncommon but serious complication of pancreatitis with high morbidity and mortality. Digital subtraction angiography (DSA) has long been the gold standard for the detection of a visceral artery pseudoaneurysm or for the site of active bleeding in patients with pancreatitis. Multi-section CT angiography is a minimally invasive technique which can provide high-resolution and high-contrast images of the arterial lumen and wall, with a much lower risk of complication and morbidity compared to DSA. The aim of this study was to determine the accuracy of multi-section CT angiography for the diagnosis of arterial complications of inflammatory pancreatitic disease. Materials and methods: A retrospective analysis of all patients undergoing visceral angiography for major bleeding as a complication of pancreatitis between 1998 and 2004 was performed. Twenty-nine studies in 25 patients (20 males, 5 females) with a mean age of 50.9 years (range 11-67 years) were identified where multi-section CT angiography was performed in the 24 h preceding the digital subtraction angiogram. Results: Digital subtraction angiography detected a pseudoaneurysm or contrast extravasation in 19 studies and no bleeding was demonstrated in 9 studies. CT angiography correctly identified the site and type of bleeding in 18 of the 19 positive studies. CT angiography detected extravasation of contrast in one study that was not demonstrated on digital subtraction angiography. The sensitivity and specificity for multi-section CT angiography for the detection of major arterial bleeding on a background of pancreatitis were 0.947 and 0.900, respectively. Conclusion: Multi-section CT angiography is a sensitive and accurate technique for the detection of major arterial hemorrhage in inflammatory pancreatic disease and should be considered as the first investigation in the management of these patients.

  16. Correlation between coronary computed tomographic angiography and fractional flow reserve

    DEFF Research Database (Denmark)

    Kristensen, Thomas Skaarup; Engstrøm, Thomas; Kelbæk, Henning

    2010-01-01

    Coronary CT angiography (CCTA) has become an important modality to evaluate the presence of coronary artery disease. Coronary artery stenosis of intermediate severity remains a therapeutic dilemma. Measurement of fractional flow reserve (FFR) during coronary angiography is the most established...... technique to determine the hemodynamic severity of a coronary artery lesion. The aim of this study was to compare CCTA with FFR....

  17. La Real Audiencia de Lima, el sello real y la garantía de la justicia (The Real Audiencia of Lima, the royal seal and ensuring justice

    Directory of Open Access Journals (Sweden)

    Puente Brunke, José de la

    2014-05-01

    Full Text Available Resumen: En este trabajo, referido a la Real Audiencia de Lima, nos proponemos poner de relieve la crucial importancia de la institución audiencial en el contexto de la administración indiana. En primer lugar nos referiremos a los libros y documentos de la Audiencia limeña, y a la trascendencia de su conservación en el contexto político indiano. Luego abordaremos el estudio de la Audiencia como depositaria del Sello Real, lo cual hacía que representara al propio monarca, y que tuviera la autoridad para emitir disposiciones en nombre del rey, y como si el rey las hubiera firmado. Por último, reflexionaremos en torno a la labor jurisdiccional de la Audiencia, y a los criterios en virtud de los cuales se consideraba que sus magistrados podían garantizar que la justicia prevaleciera. Abstract: In this paper, based on the Real Audiencia de Lima, we intend to highlight the crucial importance of audiencial institution in the context of the Indian administration. First we refer to the books and records of the Lima High Court, and the importance of conservation in the Indian political context. Then board the studio audience as depository Privy Seal, which was to represent the monarch himself, and he had the authority to issue rules on behalf of the king, and the king as if it had been signed. Finally, we will think about the judicial work of the Court, and the criteria under which it was considered that its judges could ensure that justice prevails.

  18. Perfusion Angiography in Acute Ischemic Stroke

    Directory of Open Access Journals (Sweden)

    Fabien Scalzo

    2016-01-01

    Full Text Available Visualization and quantification of blood flow are essential for the diagnosis and treatment evaluation of cerebrovascular diseases. For rapid imaging of the cerebrovasculature, digital subtraction angiography (DSA remains the gold standard as it offers high spatial resolution. This paper lays out a methodological framework, named perfusion angiography, for the quantitative analysis and visualization of blood flow parameters from DSA images. The parameters, including cerebral blood flow (CBF and cerebral blood volume (CBV, mean transit time (MTT, time-to-peak (TTP, and Tmax, are computed using a bolus tracking method based on the deconvolution of the time-density curve on a pixel-by-pixel basis. The method is tested on 66 acute ischemic stroke patients treated with thrombectomy and/or tissue plasminogen activator (tPA and also evaluated on an estimation task with known ground truth. This novel imaging tool provides unique insights into flow mechanisms that cannot be observed directly in DSA sequences and might be used to evaluate the impact of endovascular interventions more precisely.

  19. Angiography with a multifunctional line scanning ophthalmoscope

    Science.gov (United States)

    Hammer, Daniel X.; Ferguson, R. Daniel; Patel, Ankit H.; Vazquez, Vanessa; Husain, Deeba

    2012-02-01

    A multifunctional line scanning ophthalmoscope (mLSO) was designed, constructed, and tested on human subjects. The mLSO could sequentially acquire wide-field, confocal, near-infrared reflectance, fluorescein angiography (FA), and indocyanine green angiography (ICGA) retinal images. The system also included a retinal tracker (RT) and a photodynamic therapy laser treatment port. The mLSO was tested in a pilot clinical study on human subjects with and without retinal disease. The instrument exhibited robust retinal tracking and high-contrast line scanning imaging. The FA and ICGA angiograms showed a similar appearance of hyper- and hypo-pigmented disease features and a nearly equivalent resolution of fine capillaries compared to a commercial flood-illumination fundus imager. An mLSO-based platform will enable researchers and clinicians to image human and animal eyes with a variety of modalities and deliver therapeutic beams from a single automated interface. This approach has the potential to improve patient comfort and reduce imaging session times, allowing clinicians to better diagnose, plan, and conduct patient procedures with improved outcomes.

  20. Magnetic resonance angiography in suspected cerebral vasculitis

    Energy Technology Data Exchange (ETDEWEB)

    Demaerel, Philippe; De Ruyter, Nele; Wilms, Guido [Department of Radiology, Universitair Ziekenhuis, KU Leuven, 3000, Leuven (Belgium); Maes, Frederik [Department of Medical Imaging Computing, Universitair Ziekenhuis, KU Leuven, 3000, Leuven (Belgium); Velghe, Beatrijs [Department of Radiology, Ziekenhuis Oost-Limburg, Schiepse Bos 6, 3600, Genk (Belgium)

    2004-06-01

    The purpose of this study was to determine the technical capacity and diagnostic accuracy of 3D time-of-flight magnetic resonance angiography (MRA) in suspected cerebral vasculitis in a retrospective analysis of MRA and digital subtraction angiography (DSA) in 14 young patients with clinical and/or radiological suspicion of cerebral vasculitis. A total of nine arteries were evaluated in each patient. Consensus review of DSA by three observers was the reference standard. The sensitivity for detecting a stenosis varied from 62 to 79% for MRA and from 76 to 94% for DSA, depending on the observer. The specificity for detecting a stenosis varied from 83 to 87% for MRA and from 83 to 97% for DSA. Using the criterion ''more than two stenoses in at least two separate vascular distributions'' to consider the examination as being true positive, the false-positive rates for MRA and DSA were comparable. MRA plays a role as the first angiographical examination in the diagnostic work-up of suspected cerebral vasculitis. When more than two stenoses in at least two separate vascular distributions are depicted on MRA, DSA is not expected to add a significant diagnostic contribution in a patient with suspected cerebral vasculitis. DSA remains necessary when MRA is normal or when less than three stenoses are seen. (orig.)

  1. Coronary CT angiography in symptomatic patients

    Energy Technology Data Exchange (ETDEWEB)

    Becker, C.R. [Inst. of Radiologic Diagnostic, Univ. of Munich, Klinikum Grosshadern, Munich (Germany)

    2005-02-01

    The currently best available spatial and temporal resolution for retrospectively ECG gated coronary multi-detector-row CT angiography is 0.4 mm and 165 ms, respectively. These acquisition parameters are already rather close to cardiac catheter. Studies so far compared non-invasive coronary CT and convention angiography for the detection of coronary artery stenoses. The most promising result reported by all authors was the high negative predictive value of the CTA. It now needs to be determined if CTA is a reliable tool to rule out coronary artery stenoses in a patient cohort with low likelihood of CAD, such as those with atypical chest pain or ambiguous stress test. CTA may furthermore establish as a rapid and widely available tool to detect vulnerable plaques or intracoronary thrombus in patients with acute coronary syndrome and unstable angina. In patients with chronic stable angina, tools that determine myocardial ischemia under stress such as SPECT and MRI are probably better suited to determine the relevance of coronary artery stenoses. In this particular cohort, by displaying the extent and morphology of coronary atherosclerosis, CTA may help to direct the therapy to either intervention or surgery. (orig.)

  2. Bolus characteristics based on Magnetic Resonance Angiography

    Directory of Open Access Journals (Sweden)

    Bi Xiaoming

    2006-10-01

    Full Text Available Abstract Background A detailed contrast bolus propagation model is essential for optimizing bolus-chasing Computed Tomography Angiography (CTA. Bolus characteristics were studied using bolus-timing datasets from Magnetic Resonance Angiography (MRA for adaptive controller design and validation. Methods MRA bolus-timing datasets of the aorta in thirty patients were analyzed by a program developed with MATLAB. Bolus characteristics, such as peak position, dispersion and bolus velocity, were studied. The bolus profile was fit to a convolution function, which would serve as a mathematical model of bolus propagation in future controller design. Results The maximum speed of the bolus in the aorta ranged from 5–13 cm/s and the dwell time ranged from 7–13 seconds. Bolus characteristics were well described by the proposed propagation model, which included the exact functional relationships between the parameters and aortic location. Conclusion The convolution function describes bolus dynamics reasonably well and could be used to implement the adaptive controller design.

  3. Moyamoya disease: diagnosis with three-dimensional CT angiography

    Energy Technology Data Exchange (ETDEWEB)

    Tsuchiya, K. (Dept. of Radiology, National Defense Medical Coll., Saitama (Japan) Dept. of Radiology, Kyorin Univ. School of Medicine, Tokyo (Japan)); Makita, K. (Dept. of Radiology, National Defense Medical Coll., Saitama (Japan) Dept. of Radiology, Social Health Insurance Medical Center, Tokyo (Japan)); Furui, S. (Dept. of Radiology, National Defense Medical Coll., Saitama (Japan) Dept. of Diagnostic Radiology, Toranomon Kyosai Hospital, Tokyo (Japan))

    1994-08-01

    Our purpose was to assess the value of three-dimensional (3D) CT angiography in the diagnosis of moyamoya disease. We studied seven patients with moyamoya disease proved by conventional angiography. Three-dimensional (3D) CT angiography was performed using rapid sequence or helical (spiral) scanning in conjunction with a bolus injection of intravenous contrast medium. All seven patients could be diagnosed as having moyamoya disease on the basis of the following 3D CT angiographic findings: poor visualisation of the main trunks and/or major branches of anterior and middle cerebral arteries (7 patients); dilated leptomeningeal anastomotic channels from the posterior cerebral arteries (4); and demonstration of ''moyamoya vessels'' in the basal ganglia (2). Although conventional angiography remains the principal imaging technique for demonstrating anatomical changes in detail, less invasive 3D CT angiography provides a solid means of diagnosing moyamoya disease when it is suspected on CT, MRI, or clinical grounds. (orig.)

  4. Efektivitas Bioremediasi Lima Jenis Tanaman Terhadap Kandungan Logam Berat (Cr2+dan Pb2+ dalam Air

    Directory of Open Access Journals (Sweden)

    I.G. Seregeg

    2012-09-01

    Full Text Available Telah dilakukan penelitian di Laboratorium, tentang efektivitas bioremediasi lima jenis tanaman ; mendong {Scirpus articularis welingi (Cyperus sp, purun (Typha sp., tales-talesan (Typhonium sp, kangkung (Ipomoea aquatica terhadap kandungan Cr2+ dan Pb2+ dalam air tercemar di Jakarta, Desember 1994. Kelima jenis tanaman tersebut ditempatkan dalam akuarium berkapasitas 10 liter, yang diisi air tercemar Cr2+ dan Pb2+ sebanyak lima liter. Penelitian ini dilengkapi dengan akuarium kontrol, seluruh perlakuan diulang dua kali. Hasilnya menunjukkan, bahwa semua jenis tanaman mempunyai kemampuan yang berbeda-beda. Kemampuan yang paling kuat ditunjukkan oleh purun disusul berturut-turut oleh welingi, mendong, kangkung dan tales-talesan. Pengaruh tanam terhadap Pb2+ menunjukkan, daya serap yang cukup kuat dan pola urutannya sama seperti yang ditunjukkan terhadap Cr2+. Tanaman yang tumbuh tegak dengan batang yang kuat (rumput-rumputan mempunyai daya serap yang lebih tinggi dibandingkan dengan tanaman menjalar.

  5. [Sexually transmitted infections in women living in a prison in Lima, Peru].

    Science.gov (United States)

    Garaycochea, María del Carmen; Pino, Raquel; Chávez, Imelda; Portilla, José L; Miraval, María L; Arguedas, Evelyn; Linares, Pamela; Cabezudo, Edwin; Romero, Soledad; Espinoza, Manuel

    2013-07-01

    In order to determine the prevalence of sexually transmitted infections (STI) in recluse women of Chorrillos Penitentiary I in the city of Lima, Peru, a cross-sectional study was performed, including a simple random sample of women between ages 18 and 54, from whom 180 serum samples and 168 samples of cervical and vaginal discharge were analyzed. The most prevalent etiologic agents identified from cervical and vaginal discharge samples were Chlamydia trachomatis in 42.3%, Gardnerella vaginalis in 24.4% and Trichomonas vaginalis in 10.1% and for serum samples the most prevalent were syphilis and HIV, both in 2.2%. We conclude that there is a high prevalence of sexually transmitted infections in recluse women of Chorrillos Penitentiary I in the city of Lima, Peru. There should be routine screenings established for diagnosis and treatment of STIs within the prison system and this population should be included in the sexual and reproductive health programs.

  6. La familia Poaceae del distrito de Arahuay (Canta, Lima, Perú

    Directory of Open Access Journals (Sweden)

    Paúl Gonzáles

    2011-08-01

    Full Text Available Se reportan para el distrito de Arahuay (Canta, Lima, Perú (zona baja y media un total de 49 especies de la familia Poaceae agrupadas en 28 géneros, 14 tribus y 4 subfamilias. El género Poa es el más diverso con cinco especies, seguido por Eragrostis y Nassella con cuatro especies cada una. Las especies Calamagrostis spiciformis Hack. ex Stuck., Chloris halophila Parodi, Lamprothyrsus peruvianus Hitchc., Festuca glyceriantha Pilg., Lolium multiflorum Lam. y Poa supina Schrad. son nuevos reportes para el departamento de Lima. Se presentan claves dicotómicas para la determinación de los géneros y para las especies en los casos pertinentes. Para cada especie se incluye datos sobre su hábitat, distribución y el material estudiado.

  7. Transcriptome Sequencing of Lima Bean (Phaseolus lunatus to Identify Putative Positive Selection in Phaseolus and Legumes

    Directory of Open Access Journals (Sweden)

    Fengqi Li

    2015-07-01

    Full Text Available The identification of genes under positive selection is a central goal of evolutionary biology. Many legume species, including Phaseolus vulgaris (common bean and Phaseolus lunatus (lima bean, have important ecological and economic value. In this study, we sequenced and assembled the transcriptome of one Phaseolus species, lima bean. A comparison with the genomes of six other legume species, including the common bean, Medicago, lotus, soybean, chickpea, and pigeonpea, revealed 15 and 4 orthologous groups with signatures of positive selection among the two Phaseolus species and among the seven legume species, respectively. Characterization of these positively selected genes using Non redundant (nr annotation, gene ontology (GO classification, GO term enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG pathway analyses revealed that these genes are mostly involved in thylakoids, photosynthesis and metabolism. This study identified genes that may be related to the divergence of the Phaseolus and legume species. These detected genes are particularly good candidates for subsequent functional studies.

  8. Discrepancy in the perinatal mortality registries from Lima and Callao according to sources of informtation

    OpenAIRE

    Espíritu, Nora; Hospital Nacional Dos de Mayo. Lima, Perú. Oficina General de Investigación y Transferencia Tecnológica, Instituto Nacional de Salud. Lima, Perú. Médico Pediatra.; Sacieta, Luisa; Instituto para la Salud Reproductiva. Lima, Perú. Médico Pediatra.; Pantoja, Lilian; Hospital Nacional Dos de Mayo. Lima, Perú. Médico Pediatra.

    2007-01-01

    Objectives. Determine the quality and variability of perinatal mortality (PM) records in Lima and Callao. Materials and methods. Key informants were interview to evaluate the processes. The reference for foetal deaths was taken from the obstetric registry and for early neonatal deaths as the neonatal registry. These were compared with records at a diverse range of levels in hospitals, Regional Directorates of Health (DISA) and Civil Registries (CR). The filling quality of death certificat...

  9. Organizational commitment of workers in a public university in Lima and its relationship with demographic variables

    OpenAIRE

    Loli Pineda, Alejandro E.; Facultad de Psicología, Universidad Nacional Mayor de San Marcos, Lima, Perú

    2014-01-01

    The present investigation tries to know the organizational commitment about the workers not teachers of a public university of Lima and its relation with some demographic variables in a sample of 205 people of a whole of 20 faculties. The results throw a suitable trend of the workers towards the organizational commitment and the analysis of the factors indicates very significant and positive correlation between general satisfaction with the work and work commitment, affective commitment, hier...

  10. Relationship between internal marketing and organizational commitment of the employees of a public enterprise of Lima

    OpenAIRE

    Torres Valladares, Manuel; Facultad de Psicología, Universidad Nacional Mayor de San Marcos, Lima , Perú

    2014-01-01

    The main purpose of the current investigation was to obtain a description of how the employees of a public enterprise of Lima perceive the internal marketing that develops on it and how this relates to their organizational commitment. A correlational descriptive design was used with a sample of 279 employees to whom two instruments of evaluation were applied: the Internal Marketing Questionnaire of Maria Bohnenberger and the Inventory of Organizational Commitment of Allen and Meyer. These ins...

  11. STUDY OF SOIL AMPLIFICATION BASED ON MICROTREMOR AND SEISMIC RECORDS IN LIMA PERU

    Science.gov (United States)

    Calderon, Diana; Sekiguchi, Toru; Nakai, Shoichi; Aguilar, Zenon; Lazares, Fernando

    The dynamic characteristics of the ground in Lima, capital of Peru, specifically the amplification are investigated. By using the small and large microtremor array measurements we estimated the soil velocity profiles with depths to the bedrock in many cases. These profiles were used to estimate the amplification factors. Important results are the large amplification factors at EMO, VSV, CAL and CMA (La Molina, Villa El Salvador, El Callao and Bellavista district, respectively).

  12. Alternatives in international diversification for investment portfolios focused in stocks of Lima Stock Exchange

    Directory of Open Access Journals (Sweden)

    Juan Carlos Ames Santillán

    2012-06-01

    Full Text Available This paper gives an estimation of efficient frontiers for investment portfolios, they include stocks from Lima Stock Exchange General Index, Dow Jones Industrial Average, Gold, Cooper, Fixed Income Instruments of Peruvian government and savings in Peruvian financial institutions. The paper concludes that risk of investment in local portfolio reduces as a consequence of diversification, gold is an important asset and contributes to reduce portfolio risk.

  13. Prevalence and Risk Factors Associated with Pediculosis Capitis in an Impoverished Urban Community in Lima, Peru

    OpenAIRE

    Hannah Lesshafft; Andreas Baier; Humberto Guerra; Angelica Terashima; Hermann Feldmeier

    2013-01-01

    Background: Pediculosis capitis is a ubiquitous parasitic skin disease associated with intense pruritus of the scalp. In developing countries it frequently affects children and adults, but epidemiological data at the community level are rare. Objectives: To assess prevalence and risk factors associated with pediculosis capitis in a resource-poor community in Lima, Peru. Materials and Methods: In total, 736 persons living in 199 households in a circumscribed neighbourhood were examined for hea...

  14. STUDI ANTROPOLOGI TENTANG USAHA AYAM GORENG KAKI LIMA DI KOTA MAKASSAR

    OpenAIRE

    AYU HASTUTI, FATIA

    2017-01-01

    2016 Fatia Ayu Hastuti, (E51112101). Ayam Kentucky: Studi Antropologi Tentang Usaha Ayam Goreng Kaki Lima Di Kota Makassar???. Dibawah bimbingan Dr. Tasrifin Tahara, M.Si dan Dr. Safriadi, M.Si. Departemen Antropologi Fakultas Ilmu Sosial dan Ilmu Politik Universitas Hasanuddin. Penelitian ini bertujuan untuk menjelaskan dan mendeskripsikan faktor-faktor yang mempengaruhi seseorang untuk berjualan ayam krispi, bentuk pengelolaan usaha penjual ayam krispi, serta jaringan p...

  15. ORFISMO E CRISTIANISMO NA LÍRICA FINAL DE JORGE DE LIMA

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    Luciano Marcos Dias Cavalcanti

    2010-01-01

    Full Text Available This paper intends to examine how Jorge de Lima makes use of the myth of Orpheus and relates it to the Christian mysticism in his work Invenção de Orfeu. Jorge de Lima‟s poetry will give priority to the creation act which takes place in the way the poet uses the divine inspiration originated from the Christian mysticism and the myth as a space of poetic elaboration as well.

  16. José Lezama Lima y el neo-barroco americano

    Directory of Open Access Journals (Sweden)

    Claudia Caisso

    2010-05-01

    Full Text Available This work revises some moments in José Lezama Lima´s work, his neo-baroque and poetic system. Considering the transformation between the topics of insularity and hybridism, the paper examine some relevant aspects concerning style as “splendor formae” in the construction of traditions and in the poetry logos. In particular it emphasizes the metaphor’s role and some languages issues around “reminiscent time”.

  17. Sexually transmitted infections in women living in a prison in Lima, Peru

    OpenAIRE

    Garaycochea, María del Carmen; Instituto Nacional de Salud. Lima, Perú. Biólogo.; Pino, Raquel; Establecimiento Penitenciario Chorrillos I. Lima, Perú. médico cirujano.; Chávez, Imelda; Seguro Social de Salud (Essalud). Lima, Perú. médico cirujano.; Portilla, José L.; Instituto Nacional de Salud. Lima, Perú. Biólogo.; Miraval, María L.; Instituto Nacional de Salud. Lima, Perú. médico cirujano.; Arguedas, Evelyn; Establecimiento Penitenciario Chorrillos I. Lima, Perú. Biólogo.; Linares, Pamela; Establecimiento Penitenciario Chorrillos I. Lima, Perú. obstetriz.; Cabezudo, Edwin; Instituto Nacional de Salud. Lima, Perú. Biólogo.; Romero, Soledad; Instituto Nacional de Salud. Lima, Perú. Biólogo.; Espinoza, Manuel; Instituto Nacional de Salud. Lima, Perú. médico cirujano.

    2014-01-01

    In order to determine the prevalence of sexually transmitted infections (STI) in recluse women of Chorrillos Penitentiary I in the city of Lima, Peru, a cross-sectional study was performed, including a simple random sample of women between ages 18 and 54, from whom 180 serum samples and 168 samples of cervical and vaginal discharge were analyzed. The most prevalent etiologic agents identified from cervical and vaginal discharge samples were Chlamydia trachomatis in 42.3%, Gardnerella vagin...

  18. Psychometric Study of the Raven Progressive Matrices Tests in elementary students from Lima

    OpenAIRE

    Delgado Vásquez, Ana; Facultad de Psicología, Universidad Nacional Mayor de San Marcos, Lima, Perú; Escurra Mayaute, Luis M.; Facultad de Psicología, Universidad Nacional Mayor de San Marcos, Lima, Perú; Bulnes Bedón, Mario; Facultad de Psicología, Universidad Nacional Mayor de San Marcos, Lima, Perú; Quesada Murillo, María Rosario; Facultad de Psicología, Universidad Nacional Mayor de San Marcos, Lima, Perú

    2014-01-01

    It was made a psychometric study of Raven Coloured Progressive Matrices Test, which is a non verbal instrument that evaluates abilities related to make comparisons, thinking for analogy and spatial perceptions organization. It was designed mainly as a measure of factor "g" of Spearman or general intelligence, composed by two abilities, named educational and reproductive. The participants were 2496 students obtained at random considering all school districts (USE) of the city of Lima, Peru. Th...

  19. Material tipo de insectos en el Laboratorio de Sanidad Vegetal, SENASA, Lima, Perú

    Directory of Open Access Journals (Sweden)

    Pedro W. Lozada

    2013-05-01

    Full Text Available Se presenta la lista de material tipo de Insecta depositado en la colección del Laboratorio de Sanidad Vegetal, Servicio Nacional de Sanidad Agraria (SENASA, Lima, Perú, comprendiendo 21 especies de Psylloidea (Hemiptera, 4 de Cicadellidae (Hemiptera, 4 de Curculionidae (Coleoptera y 2 de Tachinidae (Diptera, todas provenientes de localidades peruanas. Los tipos de Tachinidae descritos por Charles Townsend no han sido incluidos en esta relación.

  20. Notes on the “Lima orchid” Chloraea undulata and its record in the hills of Asia, Cañete, Peru

    Directory of Open Access Journals (Sweden)

    Miguel Lleellish Juscamayta

    2015-12-01

    Full Text Available Chloraea undulata is an orchid endemic to Peru. Originally collected by Antonio Raimondi in XIX century, until first half of the last century it has been regarded as a species characteristic of the hills around Lima. The “Lima orchid” Chloraea undulata is considered to be in decline in the hills of Lima province, especially in the type localities of Cerro Amancaes and Cerro El Agustino where urban growth and expansion has been significant. In this paper its presence in the hills of Asia District, 100 km south of Lima, is documented, and we also analyzed the implications of this finding for the species conservation and their habitat.

  1. Nuevos registros para la herpetofauna del departamento de Lima, descripción del renacuajo de Telmatobius rimac Schmidt, 1954 (Anura: Ceratophrydae y una clave de los anfibios

    Directory of Open Access Journals (Sweden)

    César Aguilar

    2013-04-01

    Full Text Available En el presente trabajo la larva de Telmatobius rimac es descrita y ocho nuevos registros de anfibios y reptiles para el departamento de Lima son dados a conocer. Los nuevos registros de anfibios para Lima son Gastrotheca peruana y Pleurodema marmorata. Los nuevos registros de reptiles son las lagartijas Phyllodactylus gerrhopygus y Ameiva edracantha, y las serpientes Leptotyphlops tricolor, Philodryas tachymenoides, Sibynomorphus vagus y Tantilla capistrata. Con este estudio la herpetofauna presente en el departamento de Lima queda compuesta de 7 anfibios y 33 reptiles. Se proporciona una clave de identificación para los anfibios y una lista actualizada de la herpetofauna del departamento de Lima.

  2. Estudio morfológico del extremo apical inactivo de diversas limas mediante microscopía electrónica de barrido

    OpenAIRE

    Canalda Sahli, Carlos; Berástegui, Esther; Arroyo Bote, Sebastiana; Rais, A.; Brau Aguadé, Esteban

    1995-01-01

    Diversas firmas han manufacturado limas con el extremo apical inactivo para permitir efectuar la instrumentación de los conductos con una acción rotatoria. El objetivo de este estudio fue evaluar el extremo apical de estas limas (diámetros 30, 40 y 50) mediante microscopía electrónica de barrido, comparándolas con otras limas clásicas. Se observó en todas ellas un extremo apical sin espiras, a diferencia de las limas K convencionales.

  3. Flora vascular y vegetación del humedal de Santa Rosa (Chancay, Lima

    Directory of Open Access Journals (Sweden)

    Dámaso W. Ramirez

    2011-05-01

    Full Text Available El presente trabajo muestra los resultados de un estudio de la flora y vegetación del humedal de Santa Rosa (Chancay, Lima realizado entre los años 2007 y 2009. La flora vascular estuvo conformada por 66 especies agrupadas en 57 géneros y 26 familias. Las Poaceae (16, Cyperaceae (6 y Asteraceae (6 fueron las familias más diversas y constituyeron el 42% de la flora total. En comparación con los principales humedales de Lima, Santa Rosa presenta un mayor número de especies (Pantanos de Villa (65, Paraíso (26 y Medio Mundo (16. El análisis de similitud florística muestra que Santa Rosa es más semejante a Los Pantanos de Villa (Lima. El Análisis de Correspondencia (AC determinó tres comunidades vegetales predominantes: a Comunidad de acuáticas flotantes, b Totoral y asociadas y c Vega Mixta. Se considera que los cambios en la estructura de las comunidades vegetales y el número de especies introducidas son indicadores del impacto antrópico al que está sometido este ecosistema. Se identifican las fuentes de impacto humano y se considera a la agricultura como la principal amenaza del humedal.

  4. Theory of planned behavior applied to fish consumption in modern Metropolitan Lima

    Directory of Open Access Journals (Sweden)

    Angie HIGUCHI

    Full Text Available Abstract Despite being an important source of protein, fish consumption in Peru is low compared with other coastal countries. Thus, the objective of this study is to identify the core determinants of such consumption. We based our analysis on the framework provided by the Theory of Planned Behavior (TPB where attitudes, subjective norms, past experience and health involvement determine the intention and frequency of fish consumption. Primary data were gathered through 159 consumers of fish in modern Metropolitan Lima between August and October 2015. From a set of likert scale indicators a structural model was specified to evaluate the relationships given by the theoretical framework of the TPB. The results showed that the intention to eat fish is determined by personal attitudes, norms and past experience, and as expected, intention itself causes the frequency of fish consumption. Nonetheless, although consumers’ interest in healthy eating was shown to positively influence fish consumption behavior by theory, Metropolitan Lima fish consumers seem to be not concerned by positive health attributes related to fish consumption. These results may have important implications on production decisions, sales and marketing for the promotion of fish in Lima as a means of economic development.

  5. Patogenicidad de las amebas de vida libre aisladas de fuentes de agua en Lima

    Directory of Open Access Journals (Sweden)

    María del Carmen Garaycochea

    2008-04-01

    Full Text Available Objetivos. Determinar la presencia de amebas de vida libre (AVL en fuentes de agua del departamento de Lima y evaluar su capacidad patógena en ratones normales e inmunosuprimidos. Materiales y métodos. Se recolectaron muestras de agua de ríos, lagos, piscinas y pozos de Lima. El aislamiento se realizó por cultivo en agar no nutritivo al 2% con E. coli o E. aerogenes a 37 °C. Posteriormente se instiló en ratones normales e inmunosuprimidos (betametasona 1,4 mg/mL, dosis única una suspensión con las amebas aisladas. A los 15 días se evaluaron histológicamente los daños en ambos grupos. Resultados. Se identificaron AVL en 40/83 muestras, 31,3% de las muestras se desarrollaron en los cultivos. Se aislaron 26 cepas de AVL de siete géneros (Hartmannella, Acanthamoeba, Mayorella, Naegleria, Vahlkampfia, Vannella y Saccamoeba, Acanthamoeba fue la más frecuente (44,2%. Se encontraron AVL en 53,8% de los ratones inmunosuprimidos y 15,4% de los normales (p<0,05. Conclusiones. Existen AVL en cuerpos de agua de Lima, las cuales tienen un potencial patógeno en pacientes inmunosuprimidos, existiendo un riesgo de infección amebiana asociada con estas fuentes de agua.

  6. Human and canine echinococcosis infection in informal, unlicensed abattoirs in Lima, Peru.

    Directory of Open Access Journals (Sweden)

    Maria M Reyes

    Full Text Available Echinococcus granulosus infections are a major public health problem in livestock-raising regions around the world. The life cycle of this tapeworm is sustained between dogs (definitive host, canine echinococcosis, and herbivores (intermediary host, cystic hydatid disease. Humans may also develop cystic hydatid disease. Echinococcosis is endemic in rural areas of Peru; nevertheless, its presence or the extension of the problem in urban areas is basically unknown. Migration into Lima, an 8-million habitant's metropolis, creates peripheral areas where animals brought from endemic areas are slaughtered without veterinary supervision. We identified eight informal, unlicensed abattoirs in a peripheral district of Lima and performed a cross-sectional study in to assess the prevalence of canine echinococcosis, evaluated by coproELISA followed by PCR evaluation and arecoline purge. Eight of 22 dogs (36% were positive to coproELISA, and four (18% were confirmed to be infected with E. granulosus tapeworms either by PCR or direct observation (purge. Later evaluation of the human population living in these abattoirs using abdominal ultrasound, chest X-rays and serology, found 3 out of 32 (9.3% subjects with echinococcal cysts in the liver (two viable, one calcified, one of whom had also lung involvement and a strongly positive antibody response. Autochthonous transmission of E. granulosus is present in Lima. Informal, unlicensed abattoirs may be sources of infection to neighbouring people in this urban environment.

  7. Origin of the springs of Costa Verde beach in Lima Peru

    CERN Document Server

    Rojas, Ruben; Mamani, Enoc; Maguina, Jose; Montoya, Eduardo; Baltuano, Oscar; Bedregal, Patricia; Coria, Lucy; Guerra, Alcides; Justo, Santiago; Churasacari, Tania

    2013-01-01

    This paper tries to determine the origin of springs on the Costa Verde beach, located in the district of Barranco, Miraflores and Magdalena, province of Lima, Peru. These springs emerge near the shoreline, from the lower layers of a 80 meter high cliff. They have survived the process of urbanization of agricultural land, started in the early 70, which decreased the water table aquifer of Lima, and wiped the water leaks from the cliffs. To identify the source of the springs, isotopic, physical, chemical and bacteriological analysis was carried out for samples from five springs. The isotopic concentrations in waters from Costa Verde springs are depleted compared to those obtained for Lima aquifer waters, which is recharged by infiltration of the Rimac River. The measured values of those concentrations suggest that water from the Costa Verde springs should come from a direct recharge in the upper and middle basin, due to infiltration of rainfall or the river at an altitude of about 3600 m. Conductivity and tempe...

  8. Total phenolics, flavonoids, tannins and antioxidant activity of lima beans conserved in a Brazilian Genebank

    Directory of Open Access Journals (Sweden)

    Tânia da Silveira Agostini-Costa

    2015-02-01

    Full Text Available The objective of this study was to characterize for the first time polyphenols and DPPH (2-diphenyl-1-picryhydrazyl radical antioxidant activity in commonly cultivated accessions of Phaseolus lunatus from an ex situ germplasm collection maintained by Embrapa, in Brazil. Furthermore, the study aimed to detect changes in total polyphenols, total flavonoids and condensed tannin for the same accessions after regeneration in a greenhouse. The results showed the diversity of the lima bean collection for phenolic compounds, which were strongly correlated with antioxidant activity. Lima beans accessions with the highest polyphenols and antioxidant activity were those with colored seeds. Conservation through cold storage of P. lunatus seeds in a cold chamber in the germplasm collection did not necessarily affect phenolic compounds. Variations observed in values after regeneration seeds may be mainly results of biotic and abiotic factors, including not only cultivar, but also environmental conditions. This study suggests that polyphenols in the lima beans present antioxidant activity, with possible beneficial effects for human health. It was expected that the potential of this tasty legume can be also used as a functional food crop and/or as a new ingredient in gastronomy.

  9. La contrarrevolución del virrey Abascal: Lima, 1806-1816

    Directory of Open Access Journals (Sweden)

    Juan Luis Orrego

    2009-06-01

    Full Text Available Durante los años del colapso de la monarquía española, el Virreinato del Perú estuvo gobernado por Fernando de Abascal, quien, en alianza con la élíte de Lima, aplicó una política de represión en términos ideológicos y militares ante cualquier intento separatista o revolucionario, tanto dentro de su jurisdicción virreinal como fuera de ella, entre cuyos territorios vecinos estaban Quito, Chile y Charcas. Asimismo, mediante esta estrategia, el Virreinato de Lima intentó recuperar parte de la influencia perdida en América del Sur como consecuencia de la aplicación de las reformas borbónicas, especialmente durante la segunda mitad del siglo XVIII. El presente artículo pone atención a la respuesta de Lima contra al movimiento insurgente desatado en Quito a partir de 1809.

  10. Cell swelling activates K+ and Cl- channels as well as nonselective, stretch-activated cation channels in ehrlich ascites tumor cells

    DEFF Research Database (Denmark)

    Christensen, Ove; Hoffmann, Else Kay

    1992-01-01

    Cell-attached patch-clamp recordings from Ehrlich ascites tumor cells reveal nonselective cation channels which are activated by mechanical deformation of the membrane. These channels are seen when suction is applied to the patch pipette or after osmotic cell swelling. The channel activation does...

  11. Treatment with non-selective beta blockers is associated with reduced severity of systemic inflammation and improved survival of patients with acute-on-chronic liver failure

    DEFF Research Database (Denmark)

    Mookerjee, Rajeshwar P; Pavesi, Marco; Thomsen, Karen Louise

    2016-01-01

    BACKGROUND AND AIMS: Non-selective beta-blockers (NSBBs) have been shown to have deleterious outcomes in patients with refractory ascites, alcoholic hepatitis and spontaneous bacterial peritonitis leading many physicians to stop the drug in these cases. Acute on chronic liver failure (ACLF...

  12. Growth characteristics and ion contents of non-selected and salt-selected callus lines of highbush blueberry (Vacdnium corymbosum) cultivars Blue Crop and Denise Blue.

    Science.gov (United States)

    Muralitharan, M S; Van Steveninck, R F; Chandler, S E

    1990-07-01

    Non-selected and sodium chloride selected callus lines of Vacdnium corymbosum L.cv Blue Crop and cv. Denise Blue were grown on media supplemented with 0-100 mM NaCl. For both cultivars, fresh weight and dry weight yields were greater in selected lines on all levels of NaCl. Selected lines of Blue Crop displayed better growth than selected lines of Denise Blue at most concentrations of NaCl. Internal Na(+) and Cl(-) concentrations in selected and non-selected lines of both cultivars increased as external concentration was raised. However, selected lines of Blue Crop and Denise Blue accumulated more Na(+) and Cl(-) than non-selected lines. Selected lines of both cultivars maintained higher levels of K(+) than non-selected lines on all external NaCl levels. Selected lines of Blue Crop had higher levels of Na(+) and Cl(-) than that of Denise Blue. The results suggest Na(+) and Cl(-) accumulation could be a mechanism allowing better growth in selected lines at moderate salinity levels (50-75 mM NaCl).

  13. Use of selective cyclooxygenase-2 inhibitors and nonselective nonsteroidal antiinflammatory drugs in high doses increases mortality and risk of reinfarction in patients with prior myocardial infarction

    DEFF Research Database (Denmark)

    Sørensen, Rikke; Abildstrøm, Steen Zabell; Torp-Pedersen, C.

    2008-01-01

    The selective cyclooxygenase-2 (COX-2) inhibitors and other nonselective nonsteroidal antiinflammatory drugs (NSAIDs) have been associated with increased cardiovascular risk, but the risk in patients with established cardiovascular disease is unknown. In the present study, we analyzed the risk of...

  14. Comparison of subtypes of Listeria monocytogenes isolates from naturally contaminated watershed samples using a combination of non-selective and selective enrichment methods

    Science.gov (United States)

    Two enrichment methods for Listeria monocytogenes using Immuno Magnetic Separation were tested to determine if they selected the same subtypes of isolates. Both methods included a non-selective enrichment and one included subculture in Fraser Broth. Naturally contaminated watershed samples from the ...

  15. Comparison of magnetic resonance angiography and conventional angiography in sickle cell disease: clinical significance and realibility

    Energy Technology Data Exchange (ETDEWEB)

    Kandeel, A.Y. [Dept. of Radiology, Mansoura Univ. Hospital (Egypt); Zimmerman, R.A. [Dept. of Radiology, The Children`s Hospital of Philadelphia, PA (United States); Ohene-Frempong, K. [Div. of Hematology, The Children`s Hospital of Philadelphia, PA (United States)

    1996-07-01

    We retrospectively reviewed the medical records and conventional angiograms of 21 patients with known sickle cell disease, who underwent a total of 50 magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) studies. MRA and conventional angiography were assessed separately for evidence of stenosis or occulusion. Follow up MRI/MRA studies were also assessed for evidence of progression, regression or stability of the disease in these patients. In the carotid circulation, MRA made the correct diagnosis in 85% of the vessels evaluated with a sensitivity of 80.5% and a specificity of 94%. MRA was also found to show evidence of disease progression, more often than did MRI or the clinical condition of the patients. (orig.)

  16. The potential for neurovascular intravenous angiography using K-edge digital subtraction angiography

    Science.gov (United States)

    Schültke, E.; Fiedler, S.; Kelly, M.; Griebel, R.; Juurlink, B.; LeDuc, G.; Estève, F.; Le Bas, J.-F.; Renier, M.; Nemoz, C.; Meguro, K.

    2005-08-01

    Background: Catheterization of small-caliber blood vessels in the central nervous system can be extremely challenging. Alternatively, intravenous (i.v.) administration of contrast agent is minimally invasive and therefore carries a much lower risk for the patient. With conventional X-ray equipment, volumes of contrast agent that could be safely administered to the patient do not allow acquisition of high-quality images after i.v. injection, because the contrast bolus is extremely diluted by passage through the heart. However, synchrotron-based digital K-edge subtraction angiography does allow acquisition of high-quality images after i.v. administration of relatively small doses of contrast agent. Materials and methods: Eight adult male New Zealand rabbits were used for our experiments. Animals were submitted to both angiography with conventional X-ray equipment and synchrotron-based digital subtraction angiography. Results: With conventional X-ray equipment, no contrast was seen in either cerebral or spinal blood vessels after i.v. injection of iodinated contrast agent. However, using K-edge digital subtraction angiography, as little as 1 ml iodinated contrast agent, when administered as i.v. bolus, yielded images of small-caliber blood vessels in the central nervous system (both brain and spinal cord). Conclusions: If it would be possible to image blood vessels of the same diameter in the central nervous system of human patients, the synchrotron-based technique could yield high-quality images at a significantly lower risk for the patient than conventional X-ray imaging. Images could be acquired where catheterization of feeding blood vessels has proven impossible.

  17. The importance of peripheral angiography in elderly patients undergoing coronary angiography

    Institute of Scientific and Technical Information of China (English)

    Gianluca Rigatelli; Giorgio Rigatelli

    2005-01-01

    Objectives Early and accurate diagnosis of peripheral atherosclerosis is of paramount importance for global managerment of patients with known coronary artery disease (CAD), especially in the elderly. We sought to evaluate the prevalence and clinical relevance of significant abdominal vessel stenosis or aneurysm (AVA) in patients undergoing coronary angiography. Methods Medical records of consecutive > 75-year old patients who underwent coronary angiography at two public institutions over a 12-month period were evaluated. Angiographic results of patients who underwent coincident diagnostic abdominal aorta angiography to evaluate abdominal vessels on the basis of clinical and angiographic criteria were analyzed. Results During the study period, AVA was found in 90 (35.7% ) of 252 consecutive patients (185 males, mean age 79±5.8 years), renal artery stenosis in 13.1% of cases (33 patients), aortoiliac artery disease in 13.7 % (35 patients), and aortic aneurismal disease in 8.9% (22 patients). Logistic regression analyses revealed > 3-vessel CAD (odds ratio [OR] :9.917, P = 0.002), and > 3 risk factors (OR: 2.8, P =0. 048) as independent predictors of AVA. Conclusions Aged patients with multivessel CAD frequently have a high risk profile and multiple vascular atherosclerotic distributions, suggesting the usefulness of a mere global and comprehensive cardiovascular approach in aged patients.

  18. Patient radiation dose from computed tomography angiography and digital subtraction angiography of the brain

    Science.gov (United States)

    Netwong, Y.; Krisanachinda, A.

    2016-03-01

    The 64-row multidetector computed tomography angiography (64-MDCTA) provides vascular image quality of the brain similar to digital subtraction angiography (DSA), but the effective dose of CTA is lower than DSA studied in phantom. The purpose of this study is to evaluate the effective dose from 64-MDCTA and DSA. Effective dose (according to ICRP 103) from 64-MDCTA and DSA flat panel detector for cerebral vessels examination of the brain using standard protocols as recommended by the manufacturer was calculated for 30 cases of MDCTA (15 male and 15 female).The mean patient age was 49.5 (23-89) yrs. 30 cases of DSA (14 male and 16 female), the mean patient age was 46.8 (21-81) yrs. For CTA, the mean effective dose was 3.7 (2.82- 5.19) mSv. For DSA, the mean effective dose was 5.78 (3.3-10.06) mSv. The effective dose of CTA depends on the scanning protocol and scan length. Low tube current can reduce patient dose whereas the number of exposures and number of series in 3D rotational angiography (3D RA) resulted in increasing effective dose in DSA patients.

  19. Radial pseudoaneurysm following diagnostic coronary angiography

    Directory of Open Access Journals (Sweden)

    Shankar Laudari

    2015-06-01

    Full Text Available The radial artery access has gained popularity as a method of diagnostic coronary catheterization compared to femoral artery puncture in terms of vascular complications and early ambulation. However, very rare complication like radial artery pseudoaneurysm may occur following cardiac catheterization which may give rise to serious consequences. Here, we report a patient with radial pseudoaneurysm following diagnostic coronary angiography. Adequate and correct methodology of compression of radial artery following puncture for maintaining hemostasis is the key to prevention.DOI: http://dx.doi.org/10.3126/jcmsn.v10i3.12776 Journal of College of Medical Sciences-Nepal, 2014, Vol-10, No-3, 48-50

  20. Multislice CT angiography of interrupted aortic arch

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Dong Hyun; Goo, Hyun Woo [Asan Medical Center, Department of Radiology and Research Institute of Radiology, Seoul (Korea); Seo, Dong-Man; Yun, Tae-Jin; Park, Jeong-Jun [Asan Medical Center, University of Ulsan College of Medicine, Department of Paediatric Cardiac Surgery, Seoul (Korea); Park, In-Sook; Ko, Jae Kon; Kim, Young Hwee [Asan Medical Center, University of Ulsan College of Medicine, Department of Paediatric Cardiology, Seoul (Korea)

    2008-01-15

    Interrupted aortic arch (IAA) is defined as complete luminal and anatomic discontinuity between the ascending and descending aorta. Because almost all patients with IAA become critically ill during the neonatal period, they should undergo urgent corrective surgery. This clinical urgency necessitates a fast and accurate noninvasive diagnostic method. Although echocardiography remains the primary imaging tool for this purpose, it is not always sufficient for planning surgical correction of IAA, principally due to a limited acoustic window and the inexperience of imagers. In this context, multislice CT angiography is regarded as an appropriate imaging technique complementary to echocardiography because it is fast, accurate, and objective for the diagnosis of IAA. In this article we describe what cardiac radiologists should know about IAA in their clinical practice, including clinicopathological features, CT features with contemporary surgical methods and postoperative complications, and differentiation from coarctation of the aorta and aortic arch atresia. (orig.)

  1. Digital subtraction angiography of the cerebral vessels by intraarterial injection

    Energy Technology Data Exchange (ETDEWEB)

    Nagata, Izumi; Kikuchi, Haruhiko; Karasawa, Jun; Mitsugi, Toru; Naruo, Yoshito; Takamiya, Makoto (National Cardiovascular Center, Suita, Osaka (Japan))

    1984-10-01

    Three hundred and fifty-seven digital subtraction angiography (DSA) were performed in 184 neurosurgical patients by intraarterial injection. Examinations consisted of 192 carotid angiography, 110 vertebral angiography, 23 aortography, 11 spinal angiography and 21 other angiography. In all examinations, visualization of the vessels was excellent and the complications were never experienced. High contrast sensitivity of DSA resulted in better visualization of tumor stains, phlebogram, and arteries in cerebral arteriovenous malformations with large shunt blood flow than conventional angiography. Selective catheterization into each cerebral arteries was not necessarily demanded for good opacification of the vessels because of high sensitivity. High contrast sensitivity also permitted low concentration of contrast material, small dose of contrast material, and slow injection rate. Low concentration of contrast material reduced pain and heat during injection especially in the external carotid and vertebral angiography. Using slow injection, recoiling of catheter into the aorta was reduced, so that injection from the innominate and subclavian arteries for visualization of origin of the cerebral arteries were always successful. Full study of cerebral arteries by Seldinger's method, if necessary, was easily achieved using DSA even in patient with high age or with severe atherosclerosis. Bolus injection of small dose of contrast material as well as serial imaging was helpful in evaluating hemodynamics in the lesion. Real time display of DSA reduced the time required for angiography and was very convenient for artificial embolization. Besides these advantages, DSA became comparable to conventional angiography in spacial resolution by use of intraarterial injection and could be a preoperative genuine examination as well as a screening method.

  2. Characteristic interactivity of landiolol, an ultra-short-acting highly selective β1-blocker, with biomimetic membranes: Comparisons with β1-selective esmolol and nonselective propranolol and alprenolol

    Directory of Open Access Journals (Sweden)

    Hironori eTsuchiya

    2013-12-01

    Full Text Available Although β1-blockers have been perioperatively used to reduce the cardiac disorders associated with general anesthesia, little is known about the mechanistic characteristics of ultra-short-acting highly selective β1-blocker landiolol. We studied its membrane-interacting property in comparison with other selective and nonselective β1-blockers. Biomimetic membranes prepared with phospholipids and cholesterol of varying compositions were treated with β1-selective landiolol and esmolol and nonselective propranolol and alprenolol at 0.5–200 µM. The membrane interactivity and the antioxidant activity were determined by measuring fluorescence polarization and by peroxidizing membrane lipids with peroxynitrite, respectively. Nonselective β1-blockers, but not selective ones, intensively acted on 1,2-dipalmitoylphosphatidylcholine liposomal membranes and cardiomyocyte-mimetic membranes to increase the membrane fluidity. Landiolol and its inactive metabolite distinctively decreased the fluidity of 1,2-dipalmitoylphosphatidylcholine liposomal membranes, suggesting that a membrane-rigidifying effect is attributed to the morpholine moiety in landiolol structure but unlikely to clinically contribute to the β1-blocking effect of landiolol. Propranolol and alprenolol interacted with lipid raft model membranes, whereas neither landiolol nor esmolol. All drugs fluidized mitochondria-mimetic membranes and inhibited the membrane lipid peroxidation with the potency correlating to their membrane interactivity. Landiolol is characterized as a drug devoid of the interactivity with membrane lipid rafts relating to β2-adrenergic receptor blockade. The differentiation between β1-blocking selectivity and nonselectivity is compatible with that between membrane noninteractivity and interactivity. The mitochondrial membrane fluidization by landiolol independent of blocking β1-adrenergic receptors is responsible for the antioxidant cardioprotection common to

  3. A high-throughput, nonisotopic, competitive binding assay for kinases using nonselective inhibitor probes (ED-NSIP).

    Science.gov (United States)

    Vainshtein, Inna; Silveria, Scott; Kaul, Poonam; Rouhani, Riaz; Eglen, Richard M; Wang, John

    2002-12-01

    A novel competitive binding assay for protein kinase inhibitors has been developed for high-throughput screening (HTS). Unlike functional kinase assays, which are based on detection of substrate phosphorylation by the enzyme, this novel method directly measures the binding potency of compounds to the kinase ATP binding site through competition with a conjugated binding probe. The binding interaction is coupled to a signal amplification system based on complementation of beta-galactosidase enzyme fragments, a homogeneous, nonisotopic assay technology platform developed by DiscoveRx Corp. In the present study, staurosporine, a potent, nonselective kinase inhibitor, was chemically conjugated to a small fragment of beta-galactosidase (termed ED-SS). This was used as the binding probe to the kinase ATP binding pocket. The binding potencies of several inhibitors with diverse structures were assessed by displacement of ED-SS from the kinase. The assay format was specifically evaluated with GSK3alpha, an enzyme previously screened in a radioactive kinase assay (i.e., measurement of [(33)P]-gamma-ATP incorporation into the kinase peptide substrate). Under optimized assay conditions, nonconjugated staurosporine inhibited ED-SS binding in a concentration-dependent manner with an apparent potency (IC(50)) of 11 nM, which was similar to the IC(50) value determined in a radioactive assay. Furthermore, 9 kinase inhibitors with diverse structures, previously identified from chemical compound library screening, were screened using the competitive binding assay. The potencies in the binding assay were in very good agreement with those obtained previously in the isotopic functional activity assay. The binding assay was adapted for automated HTS using selected compound libraries in a 384-well microtiter plate format. The HTS assay was observed to be highly robust and reproducible (Z' factors > 0.7) with high interassay precision (R(2) > 0.96). Interference of compounds with the beta

  4. The effect of external divalent cations on spontaneous non-selective cation channel currents in rabbit portal vein myocytes.

    Science.gov (United States)

    Albert, A P; Large, W A

    2001-10-15

    1. The effects of external divalent cations on spontaneous single non-selective cation channel currents were studied in outside-out patches from rabbit portal vein smooth muscle cells in K+-free conditions. 2. In an external medium containing 1.5 mM Ca2+ (Ca2+o) the majority of spontaneous channel currents had a unitary conductance of 23 pS, reversal potential (Vr) of +10 mV and a low open probability (Po) at negative patch potentials. Some channels opened to a lower conductance state of about 13 pS suggesting that the cation channels have two conductance states. Open time and burst duration distributions could both be described by two exponentials with time constants of about of 1 ms and 7 ms for open times and 3 ms and 16 ms for burst durations. 3. In 0 Ca2+o the majority of spontaneous cation channels had a unitary conductance of 13 pS and Vr was shifted to +4 mV. Moreover the longer open time and longer burst duration time constants were both reduced to approximately half the values in 1.5 mM Ca2+o. 4. Compared to 0 Ca2+o the single channel currents in 3 microM and 100 microM Ca2+o had a 5- to 6-fold increase in Po which was accompanied by increases in both open times and burst durations. In 3 microM and 100 microM Ca2+o the unitary conductance of the single channel currents was between 22 and 26 pS. 5. At positive membrane potentials the single channel currents had an increased Po compared to negative potentials which was associated with increased open times and burst durations but these values were similar in 3 microM, 100 microM and 1.5 mM Ca2+o. 6. In 1.5 mM Sr2+o and 1.5 mM Ba2+o channels opened to the higher conductance state of about 22-25 pS and had a 3- to 7-fold greater Po than in 0 Ca2+o. 7. In conclusion, external divalent cations have marked effects on the unitary conductance and kinetic behaviour of non-selective cation channels in rabbit portal vein smooth muscle cells.

  5. Multidetector CT angiography in Takayasu arteritis

    Energy Technology Data Exchange (ETDEWEB)

    Khandelwal, Niranjan; Kalra, Naveen [Department of Radiodiagnosis and Imaging, Post Graduate Institute of Medical Education and Research, Chandigarh 160012 (India); Garg, Mandeep Kumar, E-mail: gargmandeep@hotmail.com [Department of Radiodiagnosis and Imaging, Post Graduate Institute of Medical Education and Research, Chandigarh 160012 (India); Kang, Mandeep; Lal, Anupam [Department of Radiodiagnosis and Imaging, Post Graduate Institute of Medical Education and Research, Chandigarh 160012 (India); Jain, Sanjay [Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh 160012 (India); Suri, Sudha [Department of Radiodiagnosis and Imaging, Post Graduate Institute of Medical Education and Research, Chandigarh 160012 (India)

    2011-02-15

    Objective: To analyse the spectrum of Takayasu's arteritis (TA) on multidetector CT angiography (MDCTA). Materials and methods: A retrospective analysis of the MDCTA findings was performed on 15 patients clinically diagnosed as Takayasu's arteritis. The spectrum and incidence of imaging findings on CTA were compared to studies in literature on catheter angiography in Takayasu's arteritis. Laboratory parameters were available in nine patients. The disease was considered active if erythrocyte sedimentation rate (ESR) levels were elevated and 'C' reactive protein (CRP) was positive. An attempt was made to correlate disease activity with the imaging findings. Results: Ascending aorta, arch of aorta and descending thoracic aorta were involved in 14 out of 15 (93%) patients. The wall thickness varied between 1 and 10 mm with maximal involvement in arch and descending thoracic aorta. Major neck vessels were involved in 11 (73%) patients with most pronounced changes seen in the brachiocephalic trunk, left common carotid artery (CCA) and left subclavian artery (SCA). Abdominal aorta and its branches were involved in all the 11 (100%) patients in whom abdominal CTA was performed. Celiac axis and SMA were involved in 10 (91%) and seven (64%) patients, respectively while renal artery stenosis was present in five (45%) patients. In six patients, ESR was elevated and CRP was positive indicating active disease. All patients in whom the laboratory parameters were available showed mural thickening in the aorta and at least one of the neck vessels except for one patient with inactive disease who had aortic mural thickening only. Conclusion: MDCTA provides information about both the vessel wall and lumen in patients with Takayasu's disease.

  6. MERALGIA PARESTHETICA SYNDROM AFTER TRANSFEMORAL CORONARY ANGIOGRAPHY

    Directory of Open Access Journals (Sweden)

    S.J ZIAEI

    2001-09-01

    Full Text Available A painful mononeuropathy of the lateral femoral cutaneous nerve (LFCN, meralgia paresthetica is commonly due to focal entrapment of this nerve as it passes through the inguinal ligament. Rarely, it has other etiologies such as direct trauma, stretch injury, or ischemia. Transfemoral Coronary Angiography is the rare cause of this condition.
    We diagnosed 5 patients with this syndrome from 1998-1999 as a complication of angiography. Four patients were male. Diagnosis was confirmed by physical exam and diagnostic tests (NCV, EMG. This syndrome typically occurs in isolation. The clinical history and examination is usually sufficient for making the diagnosis. However, the diagnosis can be confirmed by nerve conduction studies. Treatment is usually supportive. The LFCN is responsible for the sensation of the anterolateral, thigh. It is a purely sensory nerve and has no motor component.
    The clinical syndrome is well defined, and further evaluation by electrodiagnostic .studies may be unnecessary. Evaluation with nerve conduction studies and needle examination electromyography (EMG is warranted if no risk factors are identified, if a mass lesion in the retroperitoneal space is suspected, or if back pain also is present.
    LFCN conduction studies can be technically difficult. When obtained, compare with the asymptomatic side.The EMG should be normal in LFCN lesions, but the test is helpful in ruling out upper lumbar radieulopathy. Removing the cause of compression is the best therapy. In some patients, this entails weight loss and wearing loose clothing. Most patients with meralgia paresthetica will have mild symptoms that respond to conservative management.

  7. Transbrachial artery approach for selective cerebral angiography

    Energy Technology Data Exchange (ETDEWEB)

    Touho, Hajime; Karasawa, Jun; Shishido, Hisashi; Morisako, Toshitaka; Numazawa, Shinichi; Yamada, Keisuke; Nagai, Shigeki; Shibamoto, Kenji (Osaka Neurological Inst., Toyonaka (Japan))

    1990-02-01

    Transaxillary or transbrachial approaches to the cerebral vessels have been reported, but selective angiography of all four vessels has not been possible through one route. In this report, a new technique for selective cerebral angiography with transbrachial approach is described. One hundred and twenty three patients with cerebral infarction, vertebrobasilar insufficiency, intracerebral hemorrhage, epilepsy, or cerebral tumor were examined. Those patients consisted of 85 outpatients and 38 inpatients whose age ranged from 15 years old to 82 years old. The patients were examined via the transbrachial approach (97 cases via the right brachial, 29 cases via the left). Materials included a DSA system (Digital Fluorikon 5000, General Electric Co.), a 4 French tight J-curved Simmons 80-cm catheter, a 19-gauge extra-thin-wall Seldinger needle, and a J/Straight floppy 125-cm guide-wire. Generally, the volume of the contrast agent (300 mgI/ml iopamidol) used in the common carotid artery angiogram was 6 ml, while that used in the vertebral artery angiogram was 4 ml. If catheterization of the vertebral artery or right common carotid artery was unsuccessful, about 8 ml of the contrast agent was injected into the subclavian or branchiocephalic artery. Definitive diagnosis and a decision on proper treatment of the patients can be easily obtained, and the results were clinically satisfactory. Moreover, no complications were encountered in this study. This new technique making a transbrachial approach to the cerebral vessels using the DSA system is introduced here. Neurosurgeons can use this technique easily, and they will find that it provides them with all the information they need about the patient. (author).

  8. Self-Optical Coherence Tomography and Angiography

    Directory of Open Access Journals (Sweden)

    Ahmad M. Mansour

    2017-02-01

    Full Text Available Purpose: To present a new concept of self-optical coherence tomography (OCT and self-OCT angiography. Methods: The operator sits in the patient seat and manipulates the instrument body via the joystick with the dominant hand, while the dominant index is ready to press the capture button and while focusing on the fixation target. One senior ophthalmologist judged various OCT machines for ease of self-scan during a major ophthalmic convention. Separately, self-scans were also captured using a single OCT machine by one senior ophthalmologist and 5 junior optometrists and the scans were analyzed for both centration and image quality value (IQV, and compared to regular scans done by an operator. Results: Ten available OCT machines were tested for their ability to allow self-OCT. Machines that had one or more features of auto-alignment, auto-focus, and auto-shoot were ideal for self-OCT or self-OCT angiography. Self-scans done by the ophthalmologist (total 27 scans of right eye, mean IQV = 32.6, and 24 left eyes, mean IQV = 37.3, done over 9 months and 5 optometrists (total 24 scans, mean 34.8 done in one session were comparable to scans (total 11, mean IQV = 38.1 done by an operator for image quality. Decentration was very common in self-scans of the macula (37% right eye and 46% left eye versus 0% for scans of the right eye done by an operator. Conclusions: Self-OCT scans of the macular region can be done with good image quality but are often decentered. Advantages include privacy, potential use by ophthalmic health professionals, airspace station officers, and possible future home self-imaging of macula.

  9. Transient cortical blindness following vertebral angiography: a case report.

    Science.gov (United States)

    Lo, Lai Wan; Chan, Ho Fung; Ma, Ka Fai; Cheng, Lik Fai; Chan, Tony Kt

    2015-02-01

    Transient cortical blindness (TCB) is a rare but well-known complication of cerebral angiography. Its pathophysiology remains uncertain. We would like to report a case of TCB in a patient during a follow up vertebral angiogram for post-coil embolization of left posterior inferior cerebellar artery aneurysm. Patient's vision was resumed spontaneously within 24 hours after angiography, with no residual neurological deficit in subsequent clinical follow up. Multi-modality imaging evaluation including vertebral angiography, brain CT and MRI performed on same day are presented.

  10. Isolated retinal cotton wool spot after coronary angiography

    Directory of Open Access Journals (Sweden)

    Nikolaos Kopsachilis

    2013-01-01

    Full Text Available Visual symptoms after coronary angiography are rarely encountered and mostly related to contrast induced transient cortical blindness or retinal artery occlusions. We report an intriguing case of a 50-year-old woman, who presented with vision deterioration in her right eye 12 h after coronary angiography for cardiac palpitation. Fundoscopy and optical coherence tomography scan revealed an isolated parafoveal cotton wool spot in her right eye that has totally resolved 6 weeks after initial presentation. This is the first case report of this rare post coronary angiography complication.

  11. Isolated retinal cotton wool spot after coronary angiography

    Science.gov (United States)

    Kopsachilis, Nikolaos; Brar, Manpreet; Marinescu, Anca I. C.; Sivaprasad, Sobha

    2013-01-01

    Visual symptoms after coronary angiography are rarely encountered and mostly related to contrast induced transient cortical blindness or retinal artery occlusions. We report an intriguing case of a 50-year-old woman, who presented with vision deterioration in her right eye 12 h after coronary angiography for cardiac palpitation. Fundoscopy and optical coherence tomography scan revealed an isolated parafoveal cotton wool spot in her right eye that has totally resolved 6 weeks after initial presentation. This is the first case report of this rare post coronary angiography complication. PMID:23772127

  12. Tabaquismo en las enfermeras de un hospital nacional de Lima, Perú Tabagismo entre enfermeiras do hospital nacional de Lima, Peru Smoking among nurses of the national hospital in Lima, Peru

    Directory of Open Access Journals (Sweden)

    Vilma Pérez Saavedra

    2010-06-01

    Full Text Available Las enfermeras poseen oportunidades únicas para ayudar a sus pacientes a dejar de fumar. El objetivo de esta investigación fue identificar el consumo, las actitudes y los conocimientos recibidos sobre el tabaco por las enfermeras de un hospital en Lima. Se trata de un estudio descriptivo realizado en 204 (48% enfermeras asistenciales de un Hospital Nacional en Lima, Perú, utilizando la Encuesta Mundial de Profesionales de la Salud (GHPS. Se identificó que la prevalencia de vida de uso de tabaco fue 67,1% y el último mes fue de 3%; la mayoría de las enfermeras presentó actitudes positivas para el aspecto - dejar de fumar - y reconocieron la importancia y la responsabilidad de aconsejar a los pacientes a dejar ese hábito; las enfermeras recibieron conocimientos generales sobre el tema, pero la mitad no recibió conocimientos específicos sobre el tratamiento. Se concluye que frente a la importancia del tema se identificó que existe la necesidad de realizar más estudios de esta naturaleza, así como revisar los contenidos curriculares abordados acerca del tema tabaquismo.Os enfermeiros possuem oportunidades únicas para ajudar seus pacientes a deixarem de fumar. Os objetivos deste estudo foram identificar o consumo, as atitudes e os conhecimentos recebidos sobre o tabaco entre enfermeiras de um hospital. É um estudo descritivo, e foi realizado entre 204(48% enfermeiras do Hospital Arzobispo Loayza, em Lima, Peru, utilizando la Encuesta Mundial de Profesionales de la Salud (GHPS. Pelos resultados, pôde-se identifcar prevalência do uso na vida de tabaco, entre 67,1% da amostra, e no último mês 3%. A maioria dos enfermeiros apresentou atitudes positivas e conhecem a importância e a responsabilidade de aconselhar os pacientes a parar de fumar. A maioria recebeu conhecimentos gerais sobre o tema, porém, a metade não recebeu conhecimentos específicos sobre o tratamento. Conclui-se, frente à importância do tema, que a presente

  13. The characteristics of action potential and nonselec-tive cation current of cardiomyocytes in rabbit superior vena cava

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    As a special focus in initiating and maintaining atrial fibrillation (AF), cardiomyocytes in superior vena cava (SVC) have distinctive electrophysiological characters. In this study, we found that comparing with the right atrial (RA) cardiomyoctyes, the SVC cardiomyoctyes had longer APD90 at the different basic cycle lengths; the conduction block could be observed on both RA and SVC cardiomyoctyes. A few of SVC cardiomyoctyes showed slow response action potentials with automatic activity and some others showed early afterdepolarization (EAD) spontaneously. Further more, we found that there are nonselective cation current (INs) in both SVC and RA cardiomyocytes. The peak density of INs in SVC cardiomyocytes was smaller than that in RA cardiomyocytes. Removal of extracellular divalent cation and glucose could increase INs in SVC cardiomyocytes. The agonist or the antagonist of INs may in-crease or decrease APD. To sum up, some SVC cardiomyocytes possess the ability of spontaneous activity; the difference of transmembrane action potentials between SVC and RA cardiomyocytes is partly because of the different density of INs between them; the agonist or the antagonist of INs can in-crease or decrease APD leading to the enhancement or reduction of EAD genesis in SVC cardiomyo-cytes. INs in rabbit myocytes is fairly similar to TRPC3 current in electrophysiological property, which might play an important role in the mechanisms of AF.

  14. Safety of celecoxib and nonselective nonsteroidal anti-inflammatory drugs in juvenile idiopathic arthritis: results of the phase 4 registry

    Science.gov (United States)

    2014-01-01

    Background This study aimed to assess long-term safety and developmental data on juvenile idiopathic arthritis (JIA) patients treated in routine clinical practice with celecoxib or nonselective nonsteroidal anti-inflammatory drugs (nsNSAIDs). Methods Children aged ≥2 to nabumetone were the most frequently used nsNSAIDs. At baseline, the celecoxib group was older, had a numerically longer median time since diagnosis, and a numerically higher proportion of patients with a history of gastrointestinal-related NSAID intolerance. AEs reported were those frequently observed with NSAID treatment and were similar across groups (nsNSAIDs: 52.0%; celecoxib: 52.9%). Twelve unique patients experienced a total of 18 serious AEs; the most frequent were infections, and none was attributed to NSAID use. Conclusions The safety profile of celecoxib and nsNSAIDs appears similar overall. The results from this registry, ongoing pharmacovigilance, and the phase 3 trial that led to the approval of celecoxib for children with JIA provide evidence that the benefit-risk for celecoxib treatment in JIA remains positive. Trial registration ClinicalTrials.gov identifier NCT00688545. PMID:25057265

  15. The inhibitory effect of magnolol on cutaneous permeability in mice is probably mediated by a nonselective vascular hyporeactivity to mediators.

    Science.gov (United States)

    Wang, J P; Raung, S L; Chen, C C; Kuo, J S; Teng, C M

    1993-12-01

    In the present study, we demonstrated the inhibitory effect of magnolol on the plasma leakage in passive cutaneous anaphylactic (PCA) reaction, neurogenic inflammation, dorsal skin and ear edema in mice. Hind-paw skin plasma extravasation caused by antidromic stimulation of the saphenous nerve was reduced in mice pretreated with magnolol, diphenydramine or methysergide, but not with indomethacin. Ear edema formation in the PCA reaction was reduced by magnolol in dose-dependent manner. In addition, histamine-, serotonin-, compound 48/80-, bradykinin- and substance P-induced ear edema in mice was also suppressed by magnolol. A dose- and time-dependency of the inhibitory effect of magnolol was demonstrated in histamine- and compound 48/80-induced dorsal skin edema. The maximal inhibitory effect produced by a single dose of magnolol (10 mg/kg) persisted for 1 h, and significant suppression lasted for at least 3 h. In compound 48/80-pretreated mice, the histamine content of the ear was greatly reduced. Bradykinin- and substance P-induced ear edema in compound 48/80-pretreated mice was less severe than that seen in normal mice, but was still significantly reduced by magnolol pretreatment. Moreover, the inhibitory effect of magnolol was more marked than that of diphenhydramine combined with methysergide. These results suggest that the inhibitory effect of magnolol on local edema formation probably occurs through a nonselective inhibition on vascular tissue to prevent the permeability change caused by various mediators.

  16. Noncontrast-enhanced renal angiography using multiple inversion recovery and alternating TR balanced steady-state free precession.

    Science.gov (United States)

    Dong, Hattie Z; Worters, Pauline W; Wu, Holden H; Ingle, R Reeve; Vasanawala, Shreyas S; Nishimura, Dwight G

    2013-08-01

    Noncontrast-enhanced renal angiography techniques based on balanced steady-state free precession avoid external contrast agents, take advantage of high inherent blood signal from the T 2 / T 1 contrast mechanism, and have short steady-state free precession acquisition times. However, background suppression is limited; inflow times are inflexible; labeling region is difficult to define when tagging arterial flow; and scan times are long. To overcome these limitations, we propose the use of multiple inversion recovery preparatory pulses combined with alternating pulse repetition time balanced steady-state free precession to produce renal angiograms. Multiple inversion recovery uses selective spatial saturation followed by four nonselective inversion recovery pulses to concurrently null a wide range of background T 1 species while allowing for adjustable inflow times; alternating pulse repetition time steady-state free precession maintains vessel contrast and provides added fat suppression. The high level of suppression enables imaging in three-dimensional as well as projective two-dimensional formats, the latter of which has a scan time as short as one heartbeat. In vivo studies at 1.5 T demonstrate the superior vessel contrast of this technique.

  17. Evaluation of the pedal artery: comparison of three-dimensional gadolinium-enhanced MR angiography with digital subtraction angiography

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Jeong Min; Kang, Sung Gwon; Byun, Joo Nam; Kim, Young Cheol; Choi, Jeong Yeol; Kim, Dong Hyun [College of Medicine, Chosun Univ., Kwangju (Korea, Republic of)

    2002-07-01

    To compare the three-dimensional gadolinium-enhanced MR angiography with digital subtraction angiography (DSA) for evaluation of the pedal artery. In 12 extremities of 11 patients, both digital subtraction angiography (DSA) and contrast-enhanced MR angiography (CE-MR angiography) were performed during the same week. Among ten of the 11 patients, the following conditions were present: atherosclerosis (n=4), diabetic foot (n=3), Buerger's disease (n=1), calciphylactic arteriopathy (n=1) and arteriovenous malformation of the foot (n=1). The remaining patient underwent angiography prior to flap surgery. For MR angiography, a 1.5T system using an extremity or head coil was used. A three-dimensional FISP (fast imaging with steady state precession) sequence was obtained before enhancement, followed by four sequential acquisitions (scan time, 20 secs, scan interval time, 10 secs) 10 seconds after intravenous bolus injection of normal saline (total 10 cc), following intravenous administration of gadolinium (0.02 mmol/kg, 3 ml/sec). Arterial segments of the ankle and foot were classified as the anterior or posterior tibial artery, the distal peroneal artery, the medial or lateral plantar artery, the pedal arch, and the dorsalis pedis artery. Two radiologists independently analysed visualization of each arteraial segment and the mean of visible arterial segments in one extreminty using CE-MR angiography and DSA. Among 84 arterial segments, 16 were invisible at both CE-MR angiography and DSA, while 39 were demonstrated by both modalities. Twenty-six segments were visible only at CE-MR angiography and three only at DSA. CE-MR angiography displayed a higher number of arterial segments than DSA (mean, 5.42 vs. mean 3.50, respectively), a difference which was statistically significant (p<0.000). The difference between each arterial segment was not statistically significant, except for the dorsalis pedis artery (t test, p<0.000). In that it provides additional information for

  18. The Lima-Peru seismic gap: a study of inter-seismic strain accumulation from a decade of GPS measurements

    Science.gov (United States)

    Norabuena, E. O.; Pollitz, F. F.; Dixon, T. H.

    2013-05-01

    The Peruvian subduction zone between the Mendaña Fracture zone and Arica, northern Chile, has been source of large megathrust earthquakes since historical to present times, The two last major events affecting the southern segment corresponds to Arequipa 2001 (Mw 8.3) and Pisco 2007 (Mw 8.1). A noteworthy event is the Lima 1746 earthquake with an assigned magnitude of Mw 8.5 and which is assumed to have broken several km of the seismogenic zone off Lima. The great shock was followed by a devastating tsunami that destroyed the main port of Callao, killing about 99 percent of its population. This extreme event was followed by quiescence of a few hundred years until the XX century when the Lima subduction zone was broken again by the earthquakes of May 1940 (Mw 8.0), October 1966 (Mw 8.0) and Lima 1974 (Mw 8.0). The broken areas overlap partially with the estimated area of the 1746 earthquake and put the region in a state of seismic gap representing a major hazard for Lima city - Peru's capital and its about 9 million of inhabitants. Our study reports the interseismic strain accumulation derived from a decade of GPS measurement at 11 geodetic monuments including one measurement in an island 80 km offshore and models variations of coupling along the plate interface.

  19. Intra-Operative Indocyanine Green Angiography of the Parathyroid Gland.

    Science.gov (United States)

    Vidal Fortuny, Jordi; Karenovics, Wolfram; Triponez, Frederic; Sadowski, Samira M

    2016-10-01

    Major complications of thyroid and parathyroid surgery are recurrent laryngeal nerve injuries and definitive hypoparathyroidism. The use of intra-operative Indocyanine Green Angiography for confirmation of vascular status of the parathyroid gland is reported here.

  20. Intravenous coronary angiography using electron beam computed tomography

    NARCIS (Netherlands)

    Rensing, B J; Bongaerts, A H; van Geuns, R J; van Ooijen, P M; Oudkerk, M; de Feyter, P J

    1999-01-01

    Intravenous coronary angiography with electron beam computed tomography (EBCT) allows for the noninvasive visualisation of coronary arteries. With dedicated computer hardware and software, three-dimensional renderings of the coronary arteries, veins, and other cardiac structures can be constructed f

  1. Indium-111 labeled platelet deposition following transfemoral angiography

    Energy Technology Data Exchange (ETDEWEB)

    O' Connor, M.K.; Brennan, S.S.; Shanik, D.G.

    1986-01-01

    The incidence of thromboembolitic events in patients undergoing transfemoral angiography was examined using indium-111 labeled platelets. Twenty-seven patients received approximately 300 muCi of autologous labeled platelets at least 3 hours before angiography and were scanned with a gamma camera immediately before and after angiography. All patients were free of clinically obvious complications in the 1-2 day period after angiography. Our results showed evidence of platelet deposition at 21 sites other than the puncture site in 12 (44%) patients. Most platelet deposition (54%) occurred along the region between the puncture site and the aortic bifurcation; 24% occurred at sites not traversed by the catheter. At the puncture site itself, there was substantial platelet uptake in 44% of patients. This study indicates the need for further work in determining the most suitable catheter material and in assessing the efficacy of other measures such as anticoagulant or antiplatelet therapy.

  2. Digital subtraction angiography in pediatric cerebrovascular occlusive disease

    Energy Technology Data Exchange (ETDEWEB)

    Faerber, E.N.; Griska, L.A.B.; Swartz, J.D.; Capitanio, M.A.; Popky, G.L.

    1984-08-01

    While conventional angiography has been used to demonstrate cerebrovascular occlusive disease in the past, digital subtraction angiography (DSA) is capable of showing progressive vascular involvement with ease, simplicity, and extremely low morbidity, making it particularly well suited for children and outpatients either alone or coordinated with computed tomography. The authors discuss the usefulness and advantages of DSA as demonstrated in 7 infants and children with hemiplegia, 4 of whom had sickle-cell disease.

  3. Computed tomography angiography in the investigation of carotid stenosis

    Energy Technology Data Exchange (ETDEWEB)

    Goddard, A.J.P.; Mendelow, A.D.; Birchall, D

    2001-07-01

    The assessment of carotid atherosclerotic disease is an essential pre-requisite for determining a patients suitability for carotid endarterectomy to prevent ischaemic stroke. Catheter angiography is regarded as the most accurate investigative tool for this purpose. However, with its finite morbidity and invasiveness, there is an increasing reliance upon non-invasive methods to accurately assess carotid disease. We present a review of the technique and applications of computed tomography angiography. Goddard, A.J. P.et al. (2001)

  4. Dexmedetomidine compared with propofol for pediatric sedation during cerebral angiography.

    Science.gov (United States)

    Peng, Ke; Li, Jian; Ji, Fu-Hai; Li, Zhi

    2014-06-01

    Sedation of pediatric patients undergoing cerebral angiography is challenging. Although dexmedetomidine is used for sedation in various procedures, it has not been reported for pediatric patients undergoing cerebral angiography. This study compared the safety and efficacy of dexmedetomidine with that of propofol for cerebral angiography in pediatric patients. Sixty-two patients (6-15 years) scheduled for elective cerebral angiography were apportioned randomly and equally to receive either propofol or dexmedetomidine sedation. Patients in the propofol group received an initial bolus of intravenous propofol (1 mg/kg) and a maintenance infusion of 100 μg/kg/min. Patients in the dexmedetomidine group received an initial bolus of intravenous dexmedetomidine (1 μg/kg over 10 min) and a maintenance infusion of 1 μg/kg/h. An additional bolus of propofol 0.5 mg/kg or dexmedetomidine 0.25 μg/kg was repeated if needed. Procedure time, time to recovery and adverse events associated with sedation were recorded. All cerebral angiographies were completed successfully under sedation with dexmedetomidine or propofol. Mean cerebral angiography time was 36 ± 10 min in the propofol group and 31 ± 7 min in the dexmedetomidine group (P = 0.047). The percentage of airway events and total adverse events were significantly higher in the propofol group (P propofol group (P propofol or dexmedetomidine, dexmedetomidine may be a better alternative because of fewer respiratory adverse events.

  5. The feasibility of left radial artery approach for coronary angiography

    Institute of Scientific and Technical Information of China (English)

    Liangbo Chen; Can Chen; Shian Huang

    2008-01-01

    Objective:To study the feasibility of the left radial approach for coronary angiography. Methods:195 patients diagnosed with coronary atherosclerotic heart disease were randomly divided for coronary angiography(CAG) into a left radial artery approach group(98 cases) and a fight radial artery approach group(97 cases) from Jan 2006 to Dec 2006. Selective coronary angiographies were performed with 5F TIG catheters. The time of puncturing, duration under X-ray fluoroscopy and of the operation, successful rates of puncturing and coronary angiography were recorded. Results:There was no difference in the time of puncturing(2.25 -F 1.58 min vs 2.19±1.62 min), duration under X-ray fluoroscopy(3.12±1.53 min vs 3.21±1.49 min) and the duration of the operation(12.87±2.52 rain vs 12.98±2.85 min), nor in the success rates of puncturing(95.91% vs 95.87%) and coronary angiography(94.90% vs 94.85%). Conclusion: Coronary angiography can be accomplished via the left radial artery approach, indicating that this is a worthwhile clinical approach.

  6. Diagnosing intracranial vasculitis: The roles of MR and angiography

    Energy Technology Data Exchange (ETDEWEB)

    Harris, K.G.; Tran, D.D.; Sickels, W.J.; Cornell, S.H.; Yuh, W.T.C. (Univ. of Iowa College of Medicine, Iowa City, IA (United States))

    1994-02-01

    To describe our experience with MR and angiography in diagnosing intracranial vasculitis and to test the hypothesis that MR can be used to screen for patients unlikely to have vasculitis. Ninety-two patients who had angiography with [open quotes]exclude vasculitis[close quotes] as the indication or who had angiography and a clinical diagnosis of vasculitis were identified. Angiograms of all 92 patients and the MRs of the 70 patients who had both studies were reviewed. Eleven patients had intracranial vasculitis. Angiography showed characteristic changes in 8. MR performed in 9 of 11 vasculitis cases, was significantly abnormal in all 9. Among 70 patients who had both studies, 19 had MR that was completely normal or showed only incidental findings. None of these 19 was diagnosed with vasculitis. The diagnostic yield of angiography performed to exclude vasculitis was only 6%. Evaluation for intracranial vasculitis should include MR. A negative MR excludes intracranial vasculitis more definitively than does a negative angiogram and makes the likelihood of finding vasculitis with angiography negligible. 23 refs., 5 figs., 4 tabs.

  7. Contrast-enhanced MR angiography in patients after kidney transplantation

    Energy Technology Data Exchange (ETDEWEB)

    Huber, A.; Heuck, A.; Scheidler, J.; Holzknecht, N.; Baur, A.; Reiser, M. [Klinikum Grosshadern, Muenchen (Germany). Radiologische Klinik und Poliklinik; Stangl, M.; Theodorakis, J.; Illner, W.-D.; Land, W. [Dept. of Transplant Surgery, Klinikum Grosshadern, Muenchen (Germany)

    2001-12-01

    The aim of this study was to investigate the value of a contrast-enhanced 3D MR angiography in detecting postoperative vascular complications after kidney transplantation in comparison with digital subtraction angiography (DSA). Forty-one patients who underwent a kidney transplantation were examined with MR angiography and DSA. Contrast-enhanced MR angiography was performed as a dynamic measurement with one precontrast and three postcontrast measurements. Maximum intensity projection reconstructions were performed for all postcontrast data sets after DSA. The results were evaluated by two independent observers who were unaware of the DSA results. Twenty-three hemodynamically significant arterial stenoses were identified with DSA in the iliac arteries (n=7), the renal allograft arteries (n=12), and in their first branches (n=4). For a patient-based analysis the sensitivity and specificity, respectively, for observer 1 were 100 and 97%, and for observer 2, 100 and 93%. Respective data were 100 and 100% after a consensus evaluation by two observers. Complications involving the renal veins were detected in 2 cases and perfusion defects of the kidney parenchyma were detected in 4 cases. Contrast-enhanced MR angiography is a reliable method in identifying postoperative arterial stenoses after kidney transplantation. In addition, dynamic MR angiography can be helpful in detecting venous complications and perfusion defects in kidney allografts. (orig.)

  8. The comparative study on diagnostic validity of cerebral aneurysm by computed tomography angiography versus digital subtraction angiography after subarachnoid hemorrhage

    Directory of Open Access Journals (Sweden)

    Masih Saboori

    2011-01-01

    Full Text Available Background: In order to declare the preoperative diagnostic value of brain aneurysms, two radiological modalities, computed tomographic angiography and digital subtraction angiography were compared. Methods: In this descriptive analytic study, diagnostic value of computed tomographic angiography (CTA was com-pared with digital subtraction angiography (DSA. Sensitivity, specificity, positive and negative predictive values were calculated and compared between the two modalities. All data were analyzed with SPSS software, version 16. Results: Mean age of patients was 49.5 ± 9.13 years. 57.9 % of subjects were female. CTA showed 89% sensitivity and 100% specificity whereas DSA demonstrated 74% sensitivity and 100% specificity. Positive predictive value of both methods was 100%, but negative predictive value of CTA and DSA was 85% and 69%, respectively. Conclusions: Based on our data, CTA is a valuable diagnostic modality for detection of brain aneurysm and su-barachnoid hemorrhage.

  9. CT angiography versus 3D rotational angiography in patients with subarachnoid hemorrhage

    Energy Technology Data Exchange (ETDEWEB)

    Bechan, R.S.; Peluso, J.P.; Sluzewski, M.; Rooij, W.J. van [Sint Elisabeth Ziekenhuis Tilburg, Department of Radiology, Tilburg (Netherlands); Rooij, S.B. van [Medisch Centrum Alkmaar, Department of Radiology, Alkmaar (Netherlands); Sprengers, M.E.; Majoie, C.B. [Academisch Medisch Centrum, Department of Radiology, Amsterdam (Netherlands)

    2015-12-15

    CT angiography (CTA) is increasingly used as primary diagnostic tool to replace digital subtraction angiography (DSA) in patients with subarachnoid hemorrhage (SAH). However, 3D rotational angiography (3DRA) has substituted DSA as a reference standard. In this prospective observational study, we compare CTA with 3DRA of all cerebral vessels in a large cohort of patients with SAH. Of 179 consecutive patients with SAH admitted between March 2013 and July 2014, 139 underwent 64- to 256-detector row CTA followed by complete cerebral 3DRA within 24 h. In 86 patients (62 %), 3DRA was performed under general anesthesia. Two observers from outside hospitals reviewed CTA data. In 118 of 139 patients (85 %), 3DRA diagnosed the cause of hemorrhage: 113 ruptured aneurysms, three arterial dissections, one micro-arteriovenous malformation (AVM), and one reversible vasoconstriction syndrome. On CTA, both observers missed all five non-aneurysmal causes of SAH. Sensitivity of CTA in depicting ruptured aneurysms was 0.88-0.91, and accuracy was 0.88-0.92. Of 113 ruptured aneurysms, 28 were ≤3 mm (25 %) and of 95 additional aneurysms, 71 were ≤3 mm (75 %). Sensitivity of depicting aneurysms ≤3 mm was 0.28-0.43. Of 95 additional aneurysms, the two raters missed 65 (68 %) and 58 (61 %). Sensitivity in detection was lower in aneurysms of the internal carotid artery than in other locations. CTA had some limitations as primary diagnostic tool in patients with SAH. All non-aneurysmal causes for SAH and one in ten ruptured aneurysms were missed. Performance of CTA was poor in aneurysms ≤3 mm. The majority of additional aneurysms were not depicted on CTA. (orig.)

  10. FELICIDAD, RESILIENCIA Y OPTIMISMO EN ESTUDIANTES DE COLEGIOS NACIONALES DE LA CIUDAD DE LIMA / HAPPINESS, RESILIENCE AND OPTIMISM IN STUDENTS OF NATIONAL SCHOOLS IN THE CITY OF LIMA

    Directory of Open Access Journals (Sweden)

    Ana Cecilia Salgado Lévano*

    2009-10-01

    Full Text Available Resumen:El objetivo general del presente estudio fue establecer la relación que existe entre la felicidad, resiliencia y optimismo enestudiantes. La muestra estuvo conformada por 275 estudiantes: 134 varones y 141 mujeres de 15 a 18 años que cursaban elquinto año de secundaria en dos colegios nacionales mixtos de la ciudad de Lima, basados en un muestreo no probabilísticode tipo intencional. Los instrumentos utilizados fueron la Escala de Satisfacción con la vida, la Escala de Resiliencia y laEscala de Orientación hacia la vida - Revisada. Entre los principales hallazgos se encontró que existe una relación altamentesignificativa, en donde se puede apreciar que a mayor resiliencia, mayor optimismo y mayor felicidad. Las implicancias delos resultados han sido discutidas.Abstract:The general objective of the present study was to establish the relation that exists between the happiness, resilience andoptimism in students. The sample was formed by 275 students: 134 men and 141 women of 15 to 18 years that attended thefifth year of high school in two mixed national schools of the city of Lima, based on a non probabilistic sample of intentionaltype. The used instruments were the Scale of Satisfaction with the life, the Scale of Resilience and the Scale of Directiontowards the life - Reviewed. Among the main findings one was that exists a highly significant relation, in where it is possibleto be appreciated that to greater resilience, greater optimism and greater happiness. The implicating of the results has beendiscussed.

  11. Patients' Views of Cardiac Computed Tomography Angiography Compared With Conventional Coronary Angiography

    DEFF Research Database (Denmark)

    Sandgaard, Niels C F; Diederichsen, Axel Cosmus Pyndt; Petersen, Henrik;

    2012-01-01

    : For comparison of CTA and invasive coronary angiography (CA), a total of 127 patients referred for CA for the suspicion of coronary artery disease were included in the study. Three months later the patients received a simple structured questionnaire addressing their views and preferences with regard to CTA...... versus CA. RESULTS: A total of 122 of 127 patients agreed to participate in the study. Pain or bleeding at the puncture site the day after the procedure was significantly more prevalent after CA than CTA (pain, 53% vs 2%; bleeding, 75% vs 22%). More patients had to stay home from work after CA...

  12. Comparative evaluation of 64-slice CT angiography and digital subtraction angiography in assessing the cervicocranial vasculature

    Directory of Open Access Journals (Sweden)

    Randolf Klingebiel

    2008-08-01

    Full Text Available Randolf Klingebiel1, Max Kentenich3, Hans-Christian Bauknecht3, Florian Masuhr2, Eberhard Siebert1, Markus Busch2, Georg Bohner11Department of Neuroradiology, 2Department of Neurology, 3Department of Radiology, Charité Universitary Medicine Berlin, GermanyBackground: Noninvasive 64-slice computed tomography angiography (64-MSCTA closely approximates conventional catheter angiography (DSA in terms of detail resolution. Objective: Retrospective evaluation of cervicocranial (cc 64-MSCTA in comparison with DSA in patients with presumptive cc vascular disorders.Material and methods: Twenty-four 64-MSCTA studies (32 mm detector width, slice thickness 0.5 mm, 120 kv, 150 mAs, pitch 0.75 of patients with presumptive cc vascular pathology (13 men, 11 women, mean age 38.3 ± 11.3 yrs, range 19–54 yrs were assessed in comparison with DSA studies without abnormal findings in age-matched patients (11 men, 13 women, mean age 39.7 ± 11.9 yrs, range 18–54 yrs. Study readings were performed in a blinded manner by two neuroradiologists with respect to image quality and assessibility of various cc vascular segments by using a five-point scale. Radiation exposure was calculated for 64-MSCTA.Results: Each reader assessed 384/528 different vessel segments (64-MSCTA/DSA. Superior image quality was attributed to DSA with respect to the C1 ICA–C6 ICA, A3 ACA, and P3 PCA segments as well the AICA and SCA. 64-MSCTA was scored superior for C7 ICA and V4 VA segments. A significantly increased number of nonassessable V2- and V3 VA segments in DSA studies was noted. The effective dose for 64-MSCTA amounted to 2.2 mSv.Conclusions: 64-MSCTA provides near-equivalent diagnostic information of the cc vasculature as compared with DSA. According to our results, DSA should be considered primarily when peripheral vessels (A3/P3 or ICA segments close to the skull base (C2-5 are of interest, such as in primary angiitis or stenoocclusive ICA disease, respectively.Keywords: CT-angiography

  13. Non-selective regulation of peroxide and superoxide resistance genes by PerR in Campylobacter jejuni

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    Jong-Chul eKim

    2015-02-01

    Full Text Available Campylobacter jejuni is an important foodborne pathogen. The molecular mechanisms for the regulation of oxidative stress resistance have not yet been understood fully in this bacterium. In this study, we investigated how PerR (peroxide stress regulator modulates the transcriptional regulation of both peroxide and superoxide resistance genes in C. jejuni, particularly under oxidative stress conditions. The transcriptional levels of ahpC, katA, and sodB were substantially increased by aeration and oxidant exposure. Interestingly, a perR mutation completely abrogated the transcriptional response of ahpC, katA and sodB to oxidants. Furthermore, we demonstrated that perR transcription was reduced by aeration and oxidant exposure. In contrast to the unique role of PerR homologs in peroxide stress regulation in other bacteria, interestingly, C. jejuni PerR directly regulates the transcription of sodB, the most important gene in superoxide defense, as evidenced by the alteration of sodB transcription by the perR mutation and direct binding of rPerR to the sodB promoter. In addition, we also observed notable morphological changes in C. jejuni from spiral rods to coccoid morphology under aerobic conditions. Based on the intracellular ATP levels, C. jejuni entered a viable-but-non-culturable state under aerobic conditions. These findings clearly demonstrate that C. jejuni possesses a unique regulatory mechanism of oxidative stress defense that does not specifically distinguish between peroxide and superoxide defense, and PerR plays a pivotal role in this non-selective regulation of oxidative stress resistance in C. jejuni.

  14. The incentive amplifying effects of nicotine are reduced by selective and non-selective dopamine antagonists in rats.

    Science.gov (United States)

    Palmatier, Matthew I; Kellicut, Marissa R; Brianna Sheppard, A; Brown, Russell W; Robinson, Donita L

    2014-11-01

    Nicotine is a psychomotor stimulant with 'reinforcement enhancing' effects--the actions of nicotine in the brain increase responding for non-nicotine rewards. We hypothesized that this latter effect of nicotine depends on increased incentive properties of anticipatory cues; consistent with this hypothesis, multiple laboratories have reported that nicotine increases sign tracking, i.e. approach to a conditioned stimulus (CS), in Pavlovian conditioned-approach tasks. Incentive motivation and sign tracking are mediated by mesolimbic dopamine (DA) transmission and nicotine facilitates mesolimbic DA release. Therefore, we hypothesized that the incentive-promoting effects of nicotine would be impaired by DA antagonists. To test this hypothesis, separate groups of rats were injected with nicotine (0.4mg/kg base) or saline prior to Pavlovian conditioning sessions in which a CS (30s illumination of a light or presentation of a lever) was immediately followed by a sweet reward delivered in an adjacent location. Both saline and nicotine pretreated rats exhibited similar levels of conditioned approach to the reward location (goal tracking), but nicotine pretreatment significantly increased approach to the CS (sign tracking), regardless of type (lever or light). The DAD1 antagonist SCH-23390 and the DAD2/3 antagonist eticlopride reduced conditioned approach in all rats, but specifically reduced goal tracking in the saline pretreated rats and sign tracking in the nicotine pretreated rats. The non-selective DA antagonist flupenthixol reduced sign-tracking in nicotine rats at all doses tested; however, only the highest dose of flupenthixol reduced goal tracking in both nicotine and saline groups. The reductions in conditioned approach behavior, especially those by SCH-23390, were dissociated from simple motor suppressant effects of the antagonists. These experiments are the first to investigate the effects of dopaminergic drugs on the facilitation of sign-tracking engendered by

  15. Differential contribution of TRPM4 and TRPM5 nonselective cation channels to the slow afterdepolarization in mouse prefrontal cortex neurons

    Directory of Open Access Journals (Sweden)

    Ya-Ting eLei

    2014-09-01

    Full Text Available In certain neurons from different brain regions, a brief burst of action potentials can activate a slow afterdepolarization (sADP in the presence of muscarinic acetylcholine receptor agonists. The sADP, if suprathreshold, can contribute to persistent non-accommodating firing in some of these neurons. Previous studies have characterized a Ca2+-activated non-selective cation (CAN current (ICAN that is thought to underlie the sADP. ICAN depends on muscarinic receptor stimulation and exhibits a dependence on neuronal activity, membrane depolarization and Ca2+-influx similar to that observed for the sADP. Despite the widespread occurrence of sADPs in neurons throughout the brain, the molecular identity of the ion channels underlying these events, as well as ICAN, remains uncertain. Here we used a combination of genetic, pharmacological and electrophysiological approaches to characterize the molecular mechanisms underlying the muscarinic receptor-dependent sADP in layer 5 pyramidal neurons of mouse prefrontal cortex. First, we confirmed that in the presence of the cholinergic agonist carbachol a brief burst of action potentials triggers a prominent sADP in these neurons. Second, we confirmed that this sADP requires activation of a PLC signaling cascade and intracellular calcium signaling. Third, we obtained direct evidence that the transient receptor potential melastatin 5 channel (TRPM5, which is thought to function as a CAN channel in non-neural cells, contributes importantly to the sADP in the layer 5 neurons. In contrast, the closely related TRPM4 channel may play only a minor role in the sADP.

  16. SATISFACCIÓN DE NECESIDADES BÁSICAS EN VILLA MARIA DEL TRIUNFO - LIMA

    Directory of Open Access Journals (Sweden)

    J. Antonio Grandez-Urbina

    2012-01-01

    Full Text Available Objetivo: Perú es uno de los países de Latinoamérica que concentra mayor cantidad de habitantes urbanos, y el 27,3% de esta población vive en pobreza. El objetivo de este trabajo es determinar el nivel de satisfacción de necesidades básicas de los Asentamientos Humanos Las Villas de San Gabriel Alto y Manolo Castillo, Lima. Métodos: Se realizó un estudio Descriptivo Observacional Transversal, la muestra fue 115 familias, pertenecientes a los Asentamientos Humanos mencionados anteriormente. Se realizó en los Asentamientos Humanos Las Villas de San Gabriel Alto y Manolo Castillo, Lima, Perú. Familias pertenecientes a los AA.HH. antes mencionados. Se utilizó el método de Necesidades Básicas Insatisfechas (NBI utilizado y validado anteriormente en el Censo del 2007-Perú y por el Programa de Lucha Contra la Pobreza en la Zonas Urbano Marginales de Lima Metropolitana (PROPOLI 2005; considerando Acceso a vivienda, Acceso a servicios sanitarios, Acceso a Educación, Capacidad Económica. Se realizó el análisis descriptivo con frecuencias y porcentajes mediante el SPSS 19.0 Resultados: El 99,13% de los hogares posee al menos 1 NBI, 40,87% de los hogares no satisface 2 de las necesidades básicas expuestas. Conclusión: Un alto porcentaje de los hogares tiene al menos 1 NBI, siendo el primer reporte en estas dos comunidades suburbanas para su posterior utilización en la elaboración de estrategias para su modificación.

  17. Codicia y bien público: los ministros de la Audiencia en la Lima seiscentista

    Directory of Open Access Journals (Sweden)

    de la Puente Brunke, José

    2006-04-01

    Full Text Available The Administration agent was a complex figure in Colonial Peru. This article aims to discuss that complexity, focusing its analysis on the Ministers of Lima’s Audiencia during the Seventeenth century. The concepts of greed (codicia and public good (bien público will be considered in that context, posing some ideas concerning the peculiar way of «selling» judicial posts, known as beneficio. The activities of some of the Audiencia’s Ministers in Lima will be discussed, trying to offer more references on their role in the viceregal society, as well as on their contemporaries’ perception regarding them.

    El presente artículo pretende ofrecer una visión de la complejidad de la figura del agente de la administración pública en el Perú virreinal, centrando su análisis en los ministros de la Audiencia de Lima en el siglo XVII. Como punto de partida, se presentan testimonios a través de los cuales se percibe la tensión entre la «codicia» y el «bien público», y en ese contexto se plantean algunas reflexiones sobre el beneficio de oficios de justicia. Luego se analizan las actividades de algunos de esos ministros en la Lima de entonces, y se busca ofrecer mayores referencias con respecto a su papel en la sociedad virreinal, y en cuanto a la visión que sobre ellos tenían sus contemporáneos.

  18. Satisfacción de necesidades básicas en Villa Maria del Triunfo - Lima

    Directory of Open Access Journals (Sweden)

    J. Antonio Grandez-Urbina

    2013-01-01

    Full Text Available Objetivo: Perú es uno de los países de Latinoamérica que concentra mayor cantidad de habitantes urbanos, y el 27,3% de esta población vive en pobreza. El objetivo de este trabajo es determinar el nivel de satisfacción de necesidades básicas de los Asentamientos Humanos Las Villas de San Gabriel Alto y Manolo Castillo, Lima. Métodos: Se realizó un estudio Descriptivo Observacional Transversal, la muestra fue 115 familias, pertenecientes a los Asentamientos Humanos mencionados anteriormente. Se realizó en los Asentamientos Humanos Las Villas de San Gabriel Alto y Manolo Castillo, Lima, Perú. Familias pertenecientes a los AAHH antes mencionadas. Se utilizó el método de Necesidades Básicas Insatisfechas (NBI utilizado y validado anteriormente en el Censo del 2007-Perú y por el Programa de Lucha Contra la Pobreza en la Zonas Urbano Marginales de Lima Metropolitana (PROPOLI 2005; considerando Acceso a vivienda, Acceso a servicios sanitarios, Acceso a Educación, Capacidad Económica. Se realizó el análisis descriptivo con frecuencias y porcentajes mediante el SPSS 19.0  Resultados: El 99,13% de los hogares posee al menos 1 NBI, 40,87% de los hogares no satisface 2 de las necesidades básicas expuestas.  Conclusión: Un alto porcentaje de los hogares tiene al menos 1 NBI, siendo el primer reporte en estas dos comunidades suburbanas para su posterior utilización en la elaboración de estrategias para su modificación.

  19. Homocisteína en mujeres menopáusicas de Lima

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    Marlene Vargas Chávez

    2012-07-01

    Full Text Available Objetivos: Comparar los niveles de homocisteína según el estado menopáusico en un grupo de mujeres atendidas en un hospital de Lima. Diseño: Estudio descriptivo y correlacional. Lugar: Centro de Investigación de Bioquímica y Nutrición, Facultad Medicina, Universidad Nacional Mayor San Marcos, Lima, Perú. Participantes: Mujeres de 40 a 60 años de edad. Intervenciones: En 97 mujeres de 40 a 60 años de edad atendidas en el Hospital San Bartolomé, Lima, Perú, se determinó el estado menopáusico en base a evaluación clínica y dosaje de FSH y estradiol en sangre. Para determinar la homocisteína plasmática se usó el método de inmunoanálisis de polarización de fluorescencia. Principales medidas de resultados: Niveles de homocisteína en sangre. Resultados: Los niveles de homocisteína hallados estuvieron dentro de los valores referenciales internacionales (5 a 15 µmol/L. Las mujeres posmenopáusicas presentaron niveles de homocisteína significativamente mayores comparados con las mujeres premenopáusicas (p<0,05. Conclusiones: Los niveles plasmáticos de homocisteína fueron mayores en las mujeres menopáusicas y su incremento podría ser considerado en la predicción de la enfermedad cardiovascular.

  20. Recruitment of flatfish species to an estuarine nursery habitat (Lima estuary, NW Iberian Peninsula)

    Science.gov (United States)

    Ramos, Sandra; Ré, Pedro; Bordalo, Adriano A.

    2010-11-01

    One of the present concerns of fish biologists involves defining and identifying nursery habitats in the context of conservation and resource management strategies. Fish nursery studies usually report upon nursery occupation during the latter juvenile stages, despite the fact that recruitment to nurseries can start early in life, during the larval phase. Here we investigated the use of a temperate estuarine nursery area, the Lima estuary (NW Portugal), by initial development stages of flatfish species before and after metamorphosis, integrating the larval and juvenile phases. The Lima estuarine flatfish community comprised twelve taxa, seven of which were present as pelagic larvae, six as juveniles and three as adults. There was a general trend of increasing spring-summer abundance of both larvae and juveniles, followed by a sharp winter decrease, mainly of larval flatfishes. The Lima estuary was used by Solea senegalensis, Platichthys flesus and Solea solea as a nursery area, with direct settlement for the two first species. In contrast, indirect settlement was suggested for S. solea, with metamorphosis occurring outside the estuarine area. Estuarine recruitment of S. senegalensis varied between years, with young larvae occurring in the estuary throughout a prolonged period that lasted 6-9 months, corroborating the protracted spawning season. P. flesus, the second most abundant species, exhibited a typical spring estuarine recruitment, without inter-annual variations. Developed larvae arrived in the estuary during spring, whereas the 0-group juveniles emerged in the following summer period. The present study contributes new insight to our understanding of the economically important S. senegalensis, and highlights the importance of integrating the planktonic larval phase into traditional flatfish nursery studies.

  1. A ascese da Imagem Poética no encontro Jorge de Lima e Murilo Mendes

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    Luciana Tiscoski

    2010-09-01

    A partir do encontro de Murilo Mendes, Jorge de Lima e Ismael Nery e a conseqüente criação do livro de poemas Tempo e Eternidade, de 1935, após a morte do último, em 1930, os poetas Murilo e Jorge recriam sua voz poética na Restauração da poesia em Cristo. Num crescente questionamento do lugar do poeta na caótica modernidade, bem como na crença deste lugar como de ascese espiritual e recriação da imagem no plano onírico, os poetas aqui analisados nutriram sua trajetória com um surrealismo particular. A afinidade eletiva dos três artistas e sua aproximação com as artes plásticas podem ser apreciadas na linguagem tornada imagem, bem como na imagem tornada linguagem, como é o caso das séries de fotomontagens de Jorge de Lima aqui analisadas. Num procedimento tipicamente surrealista, Jorge de Lima apresenta imagens do inconsciente permeadas de poesia, onde ecoa a filosofia essencialista e visionária do poeta e pintor Ismael Nery, tantas vezes reivindicada por Murilo Mendes. Trata-se da abstração do tempo e do espaço, temas recorrentes em Jorge e Murilo, bem como a errância do homem e os atos do Cristo, a força da matéria e do erotismo, o equilíbrio entre as leis físicas e morais, o essencial, o absoluto e a unidade.

  2. A ascese da Imagem Poética no encontro Jorge de Lima e Murilo Mendes

    Directory of Open Access Journals (Sweden)

    Luciana Tiscoski

    2010-06-01

    Full Text Available A partir do encontro de Murilo Mendes, Jorge de Lima e Ismael Nery e a conseqüente criação do livro de poemas Tempo e Eternidade, de 1935, após a morte do último, em 1930, os poetas Murilo e Jorge recriam sua voz poética na Restauração da poesia em Cristo. Num crescente questionamento do lugar do poeta na caótica modernidade, bem como na crença deste lugar como de ascese espiritual e recriação da imagem no plano onírico, os poetas aqui analisados nutriram sua trajetória com um surrealismo particular. A afinidade eletiva dos três artistas e sua aproximação com as artes plásticas podem ser apreciadas na linguagem tornada imagem, bem como na imagem tornada linguagem, como é o caso das séries de fotomontagens de Jorge de Lima aqui analisadas. Num procedimento tipicamente surrealista, Jorge de Lima apresenta imagens do inconsciente permeadas de poesia, onde ecoa a filosofia essencialista e visionária do poeta e pintor Ismael Nery, tantas vezes reivindicada por Murilo Mendes. Trata-se da abstração do tempo e do espaço, temas recorrentes em Jorge e Murilo, bem como a errância do homem e os atos do Cristo, a força da matéria e do erotismo, o equilíbrio entre as leis físicas e morais, o essencial, o absoluto e a unidade.

  3. Microfocal angiography of the pulmonary vasculature

    Science.gov (United States)

    Clough, Anne V.; Haworth, Steven T.; Roerig, David T.; Linehan, John H.; Dawson, Christopher A.

    1998-07-01

    X-ray microfocal angiography provides a means of assessing regional microvascular perfusion parameters using residue detection of vascular indicators. As an application of this methodology, we studied the effects of alveolar hypoxia, a pulmonary vasoconstrictor, on the pulmonary microcirculation to determine changes in regional blood mean transit time, volume and flow between control and hypoxic conditions. Video x-ray images of a dog lung were acquired as a bolus of radiopaque contrast medium passed through the lobar vasculature. X-ray time-absorbance curves were acquired from arterial and microvascular regions-of-interest during both control and hypoxic alveolar gas conditions. A mathematical model based on indicator-dilution theory applied to image residue curves was applied to the data to determine changes in microvascular perfusion parameters. Sensitivity of the model parameters to the model assumptions was analyzed. Generally, the model parameter describing regional microvascular volume, corresponding to area under the microvascular absorbance curve, was the most robust. The results of the model analysis applied to the experimental data suggest a significant decrease in microvascular volume with hypoxia. However, additional model assumptions concerning the flow kinematics within the capillary bed may be required for assessing changes in regional microvascular flow and mean transit time from image residue data.

  4. MR imaging and angiography in tuberculous meningitis

    Energy Technology Data Exchange (ETDEWEB)

    Gupta, R.K. [Sanjay Gandhi Postgraduate Inst. of Medical Sciences, Lucknow (India). MR Section; Gupta, S. [Sanjay Gandhi Postgraduate Inst. of Medical Sciences, Lucknow (India). MR Section; Singh, D. [Sanjay Gandhi Postgraduate Inst. of Medical Sciences, Lucknow (India). Dept. of Neurology; Sharma, B. [Sanjay Gandhi Postgraduate Inst. of Medical Sciences, Lucknow (India). Dept. of Neurology; Kohli, A. [King George Medical Coll., Lucknow (India). Dept. of Paediatrics; Gujral, R.B. [Sanjay Gandhi Postgraduate Inst. of Medical Sciences, Lucknow (India). MR Section

    1994-02-01

    MRI was performed on 26 patients with tuberculous meningitis, with particular reference to document the cranial nerve abnormalities. MR angiography (MRA) was performed in 20 of the patients. Meningeal enhancement in the basal cisterns or over the convexity of brain was seen in all patients; two show ependymal enhancement. Tuberculomas, single (3), multiple (12) or military (2) were detected in 17 patients. Of the 9 patients with cranial nerve palsies, 7 showed contrast enhancement with or without thickening of the involved nerve. Abnormality signal intensity of the involved nerve was seen on proton density and T{sub 2}-weighted images in one of these patients. MRA revealed focal arterial narrowing in 10 patients, the vessels commonly affected being the terminal segment of the internal carotid artery and the proximal segments of the middle and anterior cerebral arteries. One patient also had a small aneurysm of the proximal middle cerebral artery. Infarcts, haemorrhagic (8) or bland (6), were detected in 14 patients; most were the basal ganglia and internal capsules, large middle or anterior cerebral arterial territory infarcts being seen in only two cases. (orig.)

  5. Posterior encephalopathy with vasospasm: MRI and angiography

    Energy Technology Data Exchange (ETDEWEB)

    Weidauer, S.; Gaa, J.; Lanfermann, H.; Zanella, F.E. [Institute of Neuroradiology, University of Frankfurt, Schleusenweg 2-16, 60528, Frankfurt (Germany); Sitzer, M.; Hefner, R. [Department of Neurology, University of Frankfurt, Schleusenweg 2-16, 60528, Frankfurt (Germany)

    2003-12-01

    Posterior encephalopathy is characterised by headache, impairment of consciousness, seizures and progressive visual loss. MRI shows bilateral, predominantly posterior, cortical and subcortical lesions with a distribution. Our aim was to analyse the MRI lesion pattern and angiographic findings because the pathophysiology of posterior encephalopathy is incompletely understood. We report three patients with clinical and imaging findings consistent with posterior encephalopathy who underwent serial MRI including diffusion-weighted imaging (DWI) and construction of apparent diffusion coefficient (ADC) maps, and four-vessel digital subtraction angiography (DSA). DWI revealed symmetrical subcortical and cortical parieto-occipital high signal. High and also low ADCs indicated probable vasogenic and cytotoxic oedema. On follow-up there was focal cortical laminar necrosis, while the white-matter lesions resolved almost completely, except in the arterial border zones. DSA revealed diffuse arterial narrowing, slightly more marked in the posterior circulation. These findings suggest that posterior encephalopathy may in some cases be due to diffuse, severe vasospasm affecting especially in the parieto-occipital grey matter, with its higher vulnerability to ischemia. Cerebral vasospasm due to digitoxin intoxication, resulting in posterior encephalopathy, has not yet been described previously. (orig.)

  6. Coherent bremsstrahlung used for digital subtraction angiography

    Science.gov (United States)

    Überall, Herbert

    2007-05-01

    Digital subtraction angiography (DSA), also known as Dichromography, using synchrotron radiation beams has been developed at Stanford University (R. Hofstadter) and was subsequently taken over at the Brookhaven Synchrotron and later at Hamburg (HASYLAB) [see, e.g., W.R. Dix, Physik in unserer Zeit. 30 (1999) 160]. The imaging of coronary arteries is carried out with an iodine-based contrast agent which need not be injected into the heart. The radiation must be monochromatized and is applied above and below the K-edge of iodine (33.16 keV), with a subsequent digital subtraction of the two images. Monochromatization of the synchrotron radiation causes a loss of intensity of 10 -3. We propose instead the use of coherent bremsstrahlung [see, e.g., A.W. Saenz and H. Uberall, Phys. Rev. B25 (1982) 448] which is inherently monochromatic, furnishing a flux of 10 12 photon/sec. This requires a 10-20 MeV electron linac which can be obtained by many larger hospitals, eliminating the scheduling problems present at synchrotrons. The large, broad incoherent bremsstrahlung background underlying the monochromatic spike would lead to inadmissible overexposure of the patient. This problem can be solved with the use of Kumakhov's capillary optics [see e.g., S.B.Dabagov, Physics-Uspekhi 46 (2003) 1053]: the low-energy spiked radiation can be deflected towards the patient, while the higher energy incoherent background continues forward, avoiding the patient who is placed several meters from the source.

  7. Posterior Chamber Hemorrhage during Fluorescein Angiography

    Directory of Open Access Journals (Sweden)

    Manuel A. P. Vilela

    2015-01-01

    Full Text Available This paper provides the first reported case of acute posterior chamber hemorrhage during fluorescein angiography (FA. This is a case review with serial color photographs of the anterior segment. A 76-year-old male was referred for angiographic control of age-related macular degeneration. He was pseudophakic OU, BCVA 20/40 OU. He had mild hypertension, but not diabetes. He had had two previous angiograms without adverse effects. Difficulty was experienced in obtaining the images owing to a progressive reduction in the transparency of the media. A dense hemorrhage in the posterior chamber of the right eye was found, involving the visual axis. Thorough biomicroscopy, gonioscopy, and ultrasonic biomicroscopy showed that part of one of the haptics of the right intraocular lens (IOL was touching and tearing the posterior face of the iris, without any visible synechiae, iris, or angle neovascularization. Anterior segment FA and posterior ultrasonography were normal. No similar case has been described in the literature involving dense progressive bleeding located in the capsular bag and posterior chamber, without any detectable triggering ocular event other than mydriasis and fluorescein injection. Contact of the iris or sulcus with part of the intraocular lens, aggravated by the intense use of mydriatics during the FA procedure, probably caused bleeding to happen.

  8. Photodynamic therapy monitoring with optical coherence angiography

    Science.gov (United States)

    Sirotkina, M. A.; Matveev, L. A.; Shirmanova, M. V.; Zaitsev, V. Y.; Buyanova, N. L.; Elagin, V. V.; Gelikonov, G. V.; Kuznetsov, S. S.; Kiseleva, E. B.; Moiseev, A. A.; Gamayunov, S. V.; Zagaynova, E. V.; Feldchtein, F. I.; Vitkin, A.; Gladkova, N. D.

    2017-01-01

    Photodynamic therapy (PDT) is a promising modern approach for cancer therapy with low normal tissue toxicity. This study was focused on a vascular-targeting Chlorine E6 mediated PDT. A new angiographic imaging approach known as M-mode-like optical coherence angiography (MML-OCA) was able to sensitively detect PDT-induced microvascular alterations in the mouse ear tumour model CT26. Histological analysis showed that the main mechanisms of vascular PDT was thrombosis of blood vessels and hemorrhage, which agrees with angiographic imaging by MML-OCA. Relationship between MML-OCA-detected early microvascular damage post PDT (within 24 hours) and tumour regression/regrowth was confirmed by histology. The advantages of MML-OCA such as direct image acquisition, fast processing, robust and affordable system opto-electronics, and label-free high contrast 3D visualization of the microvasculature suggest attractive possibilities of this method in practical clinical monitoring of cancer therapies with microvascular involvement. PMID:28148963

  9. Chronic Periprosthetic Hip Joint Infection. A Retrospective, Observational Study on the Treatment Strategy and Prognosis in 130 Non-Selected Patients

    DEFF Research Database (Denmark)

    Lange, Jeppe; Troelsen, Anders; Søballe, Kjeld

    2016-01-01

    INTRODUCTION: Limited information is available regarding the treatment strategy and prognosis of non-selected patients treated for chronic periprosthetic hip joint infection. Such information is important as no head-to-head studies on treatment strategies are available. The purpose of this study...... is to report on the treatment strategy and prognosis of a non-selected, consecutive patient population. METHODS: We identified 130 patients in the National Patient Registry, consecutively treated for a chronic periprosthetic hip joint infection between 2003-2008 at 11 departments of orthopaedic surgery. We.......00001). After adjusting for selected confounders, the mortality risk was no longer significantly different. The 5-year re-infection rate after re-implantation was 14.6% (95%CI 8.0-23.1). Re-infections occurred mainly within 3 years of follow-up. The overall 1-year survival rate was 92% (95%CI 86...

  10. Hipotiroidismo oculto en adultos mayores de Lima – Perú.

    OpenAIRE

    CAMPOS LEON, Michael; CASADO CORNEJO, Tomás; SOLIS VILLANUEVA, Jose

    2013-01-01

    La prevalencia de hipotiroidismo aumenta con el envejecimiento y clínicamente es muy difícil de diagnosticarlo en los adultos mayores. En este trabajo investigamos la prevalencia y etiología de hipotiroidismo oculto en el grupo de 190 gerontes supuestamente eutiroideos de Lima. Veinte pacientes (10.47%) tuvieron niveles elevados de tirotrofina: 2 de ellos (1.04%) tenían hipotiroidismo “clásico “ y 18(9.42%) hipotiroidismo “subclínico” (con valores normales de T4 libre pero significativamente ...

  11. Determinants of blood-lead levels in children in Callao and Lima metropolitan area

    Directory of Open Access Journals (Sweden)

    Espinoza Rocío

    2003-01-01

    Full Text Available OBJECTIVES: To determine blood lead levels in urban populations of children (n=2 510 and women (n=874 in the early postpartum in certain districts of Lima and Callao, and to correlate those levels with particular exposures. MATERIAL AND METHODS: Between July 1998 and January 1999 cross sectional study was conducted. The study population was selected using three sampling strategies in the government operated school system and from public pediatric and maternity hospitals at Lima and Callao, Peru. Study personnel were trained to collect finger stick blood samples with a protocol that minimizes external lead contamination. Lead determinations in blood and environmental samples were performed at the study site using portable anodic striping voltamenters. To determine the simultaneous effects of different predictors on blood lead levels, multivariate regression models were used to estimate adjusted mean differences. RESULTS: The mean blood lead level in the children studied was 9.9 µg/dl ranging from I µg/dl to 64 µg/dl with 29% of the children displaying values greater than 10 µg/dl and 9.4% at levels greater than 20 µg/dl. Among the women, the mean was 3.5 µg/dl (SD=2.4 µg/dl, and 2.4% (n=21 displayed levels greater than 10 µg/dl. Important differences were observed between the sample locations, and the highest levels were documented in the port region near Callao. The mean level of blood lead in this group was 25.6 µg/dl (SD=4.6 µg/dl, while among the rest of the sample it was 7.1 µg/dl (SD=5.1 µg/dl. The presence of a mineral storage area signified a difference in exposure in excess of 13 µg/dl for children living near the port area in contrast to the other children who were not as close to such fixed sources of lead exposure. For the participants in Lima, the risk of showing levels above 10 µg/dl was associated with exposure to high vehicular traffic. CONCLUSIONS: In metropolitan Lima, we conclude that the mean blood lead levels of

  12. Streblidae de murciélagos de Lima: dos citas nuevas para Perú

    Directory of Open Access Journals (Sweden)

    Guillermo L. CLAPS

    2005-01-01

    Full Text Available Se presentan nuevos registros de Streblidae para el departamento Lima (Perú, que parasitan a tres especies de murciélagos de la familia Phyllostomidae: Anoura geoffroyi Gray, Carollia perspicillata (Linneo y Desmodus rotundus (Geoffroy. Se amplía la distribución geográfica de Anastrebla modestini Wenzel, Aspidoptera falcata Wenzel, Exastinion clovisi (Pessôa & Guimarães, Megistopoda aranea (Coquillett, Speiseria ambigua Kessel y Strebla wiedemanni Kolenati (Diptera, Streblidae, dado que se registran por primera vez en el departamento, y A. modestini y E. clovisi se mencionan por primera vez en Perú.

  13. Les adolescents travailleurs de Lima face à la déscolarisation

    OpenAIRE

    Cavagnoud, Robin

    2012-01-01

    Cet article analyse la déscolarisation des adolescents travailleurs à Lima, la capitale du Pérou, à partir d’une typologie du travail adolescent et d’une étude de cas. Si le travail d’un adolescent apparaît, a priori, comme le principal facteur qui explique son abandon de l’école, cet article montre que la situation de chaque enfant est plus complexe et que l’approche par les parcours de vie est la plus adaptée pour comprendre l’enchaînement de facteurs produisant la déscolarisation. La grand...

  14. Aislamiento de Vibrio cholerae O139 en el sur de Lima, Perú, diciembre 2004

    OpenAIRE

    Huapaya, Blanca; Padilla, Carlos; Suárez, Victor; Gavilán, Ronnie

    2005-01-01

    En el marco de la Vigilancia de Vibrio cholerae O139, que el Instituto Nacional de Salud tiene establecido a través de los Laboratorios del Sistema de la Red Nacional, el 13 de diciembre del presente año llegó al Laboratorio de Enteropatógenos del Centro Nacional de Salud Pública una cepa enviada por el Laboratorio de Referencia DISA II Lima Sur, procedente del Centro Materno Infantil (C.M.I.) San José de Villa el Salvador, de una paciente de 15 años, con un cuadro clínico de diarrea acuos...

  15. Situación bucal de pobladores con discapacidades en el distrito de San Luis - Lima

    OpenAIRE

    Soto-Veliz, Rosario; Instituto de Desarrollo Odontológico - IDEO; Vallejos-Ragas, Raúl; Instituto de Desarrollo Odontológico - IDEO; Campos-Sánchez, Rosario; Docente de Universidad Federico Villarreal. Lima,; Ouslanova, Polina; Instituto de Desarrollo Odontológico - IDEO; Agüero Cortez, Zoraida; Bachiller en Odontología.; Bernal-Garayar, Noel; Bachiller en Odontología.; Camargo Hurtado, Jesús; Bachiller en Odontología.; De la Cruz Calvo, Carolina; Bachiller en Odontología.

    2014-01-01

    Objetivo: Establecer el estado de la salud bucal de personas con diversas discapacidades, residentes en un distrito de clase media-baja de la ciudad de Lima. Materiales y métodos: Se examinó a residentes registrados en la Oficina Municipal de Atención de la Persona con Discapacidad -OMAPED, de San Luis, como parte de la primera fase del desarrollo del Sistema de atención Odontológico Especializado a implementar. La clasificación utilizada, incluía la discapacidad a) Motora b) Sensorial y c) M...

  16. Uji Kualitas Mikrobiologis Minuman Teh Poci yang Dijual Pedagang Kaki Lima di Pasar Raya Padang

    Directory of Open Access Journals (Sweden)

    Genta Pradana

    2015-09-01

    Full Text Available Abstrak Minuman Teh Poci merupakan produk minuman yang berkembang pesat dan banyak dijual oleh pedagang kaki lima di Padang terutama di Pasar Raya kota Padang. Penjualan Teh Poci oleh pedagang kaki lima di Pasar Raya tidak mengikuti sistem franchise yang mempunyai standar kebersihan penyajian menyebabkan proses pembuatan Teh Pociyang  dijual di Pasar Raya tidak terjamin kebersihan penyajianya. Tujuan penelitian ini adalah menguji kualitas mikrobiologis  minuman Teh Poci yang dijual pedagang kaki lima di Pasar Raya Padang. Minuman yang diperiksa adalah minuman Teh Poci yang dijual di sepanjang jalan Pasar Raya dengan mengambil 13 sampel. Penelitian dilakukan dari bulan November 2011- September 2012 dengan menggunakan metode Most Probable Number (MPN yang terdiri dari tes penduga dan tes konfirmasi. Dari 13 sampel minuman yang diperiksa seluruh sampel tersebutmengandung bakteri Coliform. Faktor-faktor yang dapat mempengaruhi adalah kebersihan penjual minuman dalam menutup kemasan minuman, kurangnya higiene perseorangan, lokasi penjualan di tengah pasar, es batu yang tidak bersih, dan alat-alat yang digunakan. Kesimpulan penelitian ini ialah minuman Teh Poci yang dijual di Pasar Raya Padang tidak memenuhi standar kualitas mikrobiologis air minum yang sudah ditetapkan pada Peraturan Menteri Kesehatan tahun No. 492 tahun 2010.Kata kunci: pedagang kaki lima, teh Poci, higieneAbstract Teh Poci has become popular nowadays. There is a significant movement of Teh Poci street sellers in Padang especially in Pasar Raya Padang. Teh Poci street sellers in Pasar Raya do not buy the franchise system which has the appropriate standard for food serving. The Teh Poci stands are also located in the middle of traditional market which cause the serving to the society do not fulfill the sanitary standard.One of the indicators of water contamination is by measuring the amount of the coliform bacteria presents in water.  The objective of this study was to do

  17. La Cumbre de Lima, un encuentro de la asimetría euro-latinoamericana

    OpenAIRE

    Maihold, Günther

    2008-01-01

    La quinta edición de las Cumbres euro-latinoamericanas no logró esquivar a las contradicciones presentes en sus encuentros antenotes, aunque esta vez fue articulado por parte de los presidentes latinoamericanos y caribeños muy claramente el deseo por recibir una respuesta europea a la creciente heterogeneidad en América Latina en un marco de una asimetría fundamental de la relación bi-regional. Aunque no quedaron ratificados acuerdos al respecto, esta tónica marcó al encuentro de Lima que ...

  18. Norovirus prevalence in ‘pathogen negative’ gastroenteritis in children from periurban areas in Lima, Peru

    Science.gov (United States)

    Rivera, Fulton P.; Ochoa, Theresa J.; Ruiz, Joaquim; Medina, Anicia M.; Ecker, Lucie; Mercado, Erik; Gil, Ana I.; Huicho, Luis; Lanata, Claudio F.

    2011-01-01

    Summary Norovirus was detected in 17.4% of 224 diarrhoeal samples from children younger than 24 months of age in Lima, in whom all common pathogens had been excluded (pathogen negative). Norovirus was identified more frequently in children older than 12 months of age than in younger children (34% vs 8%, P<0.001). Among norovirus-positive samples, genogroup II was the predominant group (92%). Compared with rotavirus, norovirus episodes tended to be of shorter duration and less severe. The role of norovirus as a cause of diarrhoea and the ascertainment of its severity in developing countries needs further confirmation by future epidemiological studies. PMID:21962615

  19. High Rate of Partner Treatment Among Chlamydia trachomatis-Infected Pregnant Women in Lima, Peru.

    Science.gov (United States)

    Nguyen, Minh; Cabeza, Jeanne; Segura, Eddy; García, Patricia J; Klausner, Jeffrey D

    2016-05-01

    This was a substudy of 60 Chlamydia trachomatis-infected women from a larger study of pregnant women in Lima, Peru. Participants were encouraged to bring their partners in for concurrent patient-partner treatment. The alternative partner treatment was expedited partner therapy. Partner treatment uptake was 91.7%. Twenty-one partners (38.2%) received treatment through concurrent patient-partner treatment, and 34 (61.8%) through expedited partner therapy. Living with the partner was significantly associated with having the partner treated (P=0.0028).

  20. Conceptions About Social Violence and Violence Against Women: Community Participatory Diagnosis at Manchay, Lima.

    Science.gov (United States)

    Velázquez, Tesania; Fernández, Adriana

    2015-01-01

    This article is the result of a participatory diagnosis about social violence and violence against women carried out with both female and male inhabitants of San Pablo Mirador (SPM), an urban neighborhood located in the upper area of Manchay, Lima. It was requested by the nongovernmental organization (NGO) Ruwasunchis, and was carried out by a group of faculties and students of the Master Program in Community Psychology at the Pontificia Universidad Católica del Perú. This article reports the conceptions and the dynamics of social violence in SPM, specifically violence against women, and the resources used by its members in order to address this violence in the community.

  1. Validez y confiabilidad de la Escala de Felicidad de Lima en adultos mayores venezolanos

    OpenAIRE

    Árraga Barrios, Marisela Virginia; Sánchez Villarroel, Marhilde

    2011-01-01

    Con el propósito de determinar las propiedades psicométricas: validez y confiabilidad, de la Escala de Felicidad de Lima, para ser aplicada en adultos mayores venezolanos, se realizó un estudio descriptivo, experimental, de campo y transeccional, con 103 adultos mayores venezolanos entre 60 y 85 años. Los procedimientos estadísticos utilizados fueron el análisis factorial para evaluar su validez, el coeficiente alfa de Cronbach y el coeficiente partición por mitades, para la confiabilidad. Co...

  2. Potencial exportador de los servicios odontológicos en Lima Metropolitana

    OpenAIRE

    Arias Peña, Sonia

    2013-01-01

    Objetivo: Esta investigación determina el potencial de exportación de servicios dentales en Lima (Perú) en el diagnóstico de mercado dental. En concreto, en la investigación se analiza el estado del mercado interno (la oferta), la demanda y la oferta internacional a través de la exploración y la investigación cualitativa descriptiva para el diseño mixto (cualitativo y cuantitativo) de la presente investigación. Método: Se analizó detalladamente la condición de la oferta interna, la demanda in...

  3. ESTUDIO DE LA DIROFILARIOSIS CANINA EN LA RIBERA DEL RÍO CHILLÓN, LIMA

    OpenAIRE

    Chipana Q., Carlos; Práctica Privada.; Chávez V., Amanda; Laboratorio de Microbiología y Parasitología, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Lima.; Casas A., Eva; Laboratorio de Microbiología y Parasitología, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Lima, Perú.; Suárez A., Francisco; Laboratorio de Medicina Preventiva, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Lima.

    2013-01-01

    Se determinó la presencia de dirofiliarosis (D. immitis) en distritos de Lima ribereños al Río Chillón (Puente Piedra, Comas, Carabayllo, Los Olivos y Ventanilla). Se tomaron muestras de sangre en vacuotainers con anticoagulante de 200 perros al azar, sin distinción de raza ni sexo y con edades comprendidas entre 1-10 años. El diagnóstico se realizó mediante las pruebas del método del microcapilar, el Knott modificado para microfilarias, y la prueba de ELISA que detecta antígenos de secreción...

  4. Calidad de vida y problemas bucales en preescolares de la provincia de Huaura, Lima.

    OpenAIRE

    López-Ramos, Roxana Patricia; Facultad en Estomatología. Universidad Peruana Cayetano Heredia. Lima.; García-Rupaya, Carmen Rosa; Facultad en Estomatología. Universidad Peruana Cayetano Heredia. Lima.

    2014-01-01

    Objetivos: Evaluar el impacto de los problemas bucales en la calidad de vida en niños de 3 a 5 años de la Institución Educativa Inicial del distrito Hualmay de la provincia de Huaura, departamento de Lima en el 2011. Material y Métodos: Este estudio fue de tipo descriptiva, transversal. Evaluó a 153 niños, a quienes se les examinó la cavidad bucal y al responsable del cuidado del niño se aplicó el Early Childhood Oral Health Impact Scale (ECOHIS); previamente se realizó la validación peruana....

  5. Las comunidades de mitilidos del mediolitoral rocoso del departamento de Lima

    Directory of Open Access Journals (Sweden)

    Carlos Paredes

    2014-06-01

    Full Text Available Se estudiaron 34 muestras de los conglomerados de mitilidos de la zona medio litoral rocosa del Departamento de Lima, (10°45'38"S a 12°57'39"S, tomadas periódicamente, entre junio y noviembre de 1972. Utilizando el método del índice biológico, se determinó la existencia de dos comunidades: Comunidad de Perumytilus purpuratus (Lamarck, 1819, en el horizonte medio de la zona mediolitoral. Comunidad de Semimytilus algosus (Gould, 1850, en el horizonte inferior de la zona mediolitoral.

  6. Reactive Arthritis by Intestinal Parasites in the Central Military Hospital in Lima

    OpenAIRE

    Feijóo Quiroz, Octavio; Departamento de Medicina Interna Hospital Militar Central de Lima Lima, Perú

    2014-01-01

    OBJECTIVE: To determine the causal relationship existent between intestinal parasitic infestations and reactive arthritis (ReA). MATERIAL AND METHODS: A case-control trial with patients admitted to the Hospital Militar Central of Lima, 31 of them were diagnosed as having ReA between 1994 and 1995 (control group) and 31 ReA-free patients. Data were obtained from medical records. RESULTS: In the case group, 11 patients (35,48%) had intestinal parasites; 12 (38,71%) presented albendazol- and/or ...

  7. Acceso a la vivienda para la segunda generación de las barriadas de Lima

    Directory of Open Access Journals (Sweden)

    1988-01-01

    Full Text Available Dans les barriadas anciennes des cônes nord et sud de l'agglomération de Lima, apparaît une nouvelle demande de logement constituée par les fils des fondateurs qui, arrivés à l'âge adulte, forment à leur tour des familles. Partant de la description démographique et socio-économique de ces familles, cet article cherche à identifier leur trajectoire résidentielle en analysant leur situation présente (dépendance vis-à-vis des parents, 'logés', locataires, propriétaires et en évaluant les options dont elles disposent en matière de logement dans le contexte liménien actuel (offre privée, programmes publics, vieilles barriadas, invasion de terrain. En las barriadas antiguas de los conos norte y sur de Lima, está apareciendo una nueva demanda de vivienda constituida por los hijos de los fundadores que, llegando a la edad adulta, forman nuevas familias. Partiendo de la descripción demográfica y socio-económica de dichas familias, este artículo busca identificar su trayectoria residencial, analizando su situación actual (dependientes de los padres, alojados, inquilinos, propietarios de una casa y evaluando las opciones que tienen para solucionar su problema de vivienda en el mercado limeño (oferta privada, programas estatales, viejas barriadas, invasiones. In the old barriadas of the northern and southern zones of Lima (conos norte y sur there has appeared a new demand for housing caused by the fact that the children of the original settlers have reached adulthood and are forming new families. Starting with the demographic and socio-economic description of these new families, this article seeks to identify their residential paths by analysing their present situation (dependence on their parents, still living at home, as tenants or in their own homes and by evaluating the options they have for solving housing problem in the context of the Lima market -these include private sales, state housing programs, remaining in the old

  8. Depressive Mood Among Within-Country Migrants in Periurban Shantytowns of Lima, Peru.

    Science.gov (United States)

    Ruiz-Grosso, Paulo; Bernabe-Ortiz, Antonio; Diez-Canseco, Francisco; Gilman, Robert H; Checkley, William; Bennett, Ian M; Miranda, J Jaime

    2015-12-01

    In low- and middle-income countries, migration to urban settings has reshaped the sprawl and socio demographic profiles of major cities. Depressive episodes make up a large portion of the burden of disease worldwide and are related to socio-demographic disruptions. As a result of terrorism, political upheaval, followed by economic development, Peru has undergone major demographic transitions over the previous three decades including large migrations within the country. We aimed to determine the prevalence of current depressive mood and its relationship with parameters of internal migration, i.e. region of origin, age at migration, and years since migration. A community-wide census was carried out between January and June 2010 within a shantytown immigrant receiving community in Lima, Peru. One male or female adult per household completed a survey. Depressive mood was assessed with a 2-item Center for Epidemiologic Studies Depression (CESD) scale. Migration-related variables included place of birth, duration of residence in Lima, and age at migration. Prevalence ratios (PR) and 95% confidence intervals (95% CI) were calculated. A total of 8,551 out of 9,561 participants, response rate 89%, participated in the census. Of these, 8,091 records were analyzed: 71.8% were women [average age 39.4 (SD 13.9 years)] and 59.3% were immigrants. The overall prevalence of individuals with current depressive mood was 17.1% (95% CI 16.2-17.9%) and varied significantly by all socio-demographic and migration variables assessed. On unadjusted analyses, immigrants to Lima had higher prevalence of depressive mood if they originated in other costal or Andean areas, had lived in Lima for more than 20 years, or were <30 years of age when they out-migrated. When controlling for age, gender and socio-demographic variables the association was no longer significant, the only exception being a 20% lower prevalence of current depressive mood among those who out-migrated aged ≥30 years old (PR

  9. Fauna parasitaria de Periplaneta americana Linnaeus en un distrito de Lima

    OpenAIRE

    José Iannacone; Kenneth Velásquez; Anita Arrascue

    2014-01-01

    Se investigaron algunos aspectos de los componentes comunitarios e infracomunitarios de la parasitofauna de Periplaneta americana en 100 especímenes colectados en buzones del distrito de Pueblo Libre, Lima, Perú, en invierno, entre agosto y setiembre de 1996. De todos los hospederos muestreados 67 fueron machos y 33 hembras; 19 adultos y 81 niñas; luego de las necropsias, se observaron cinco tipos de parásitos con la prevalencia e intensidad de infección respectiva: Cephalobellus tipulae (Nem...

  10. Eros thanático en Paradiso de José Lezama Lima

    Directory of Open Access Journals (Sweden)

    Edinson Aladino

    2017-08-01

    Full Text Available Los personajes en la novelística de José Lezama Lima no son simples tipologías que devienen bajo la estructura del lenguaje. Los personajes lezamianos son su circunstancia atravesada por la alineación de un destino noble o aciago. Eugenio Foción encara en Paradiso la circunstancia de un destino aciago, arquetipo fundamental en el decurso de la novela que viene a representar la fijeza del deseo como fragmentación de vida. Querencia de muerte o Eros thanático que rodea al corazón del cuerpo para impeler su pulsión vital.

  11. Dr. Gustavo Aldereguia Lima. A historical and social approach of his life.

    Directory of Open Access Journals (Sweden)

    Reinaldo Pino Blanco

    2007-06-01

    Full Text Available Dr. Gustavo Aldereguía Lima was a revolutionary, outstanding scientist in our milieu. This article is about his remarkable work during 75 years in two main aspects; as a tireless social fighter, and a distinguished scientist. It is our purpose to stand out some aspects of his professional work recognizing his role as a doctor, social hygienist and researcher. It is also important to point out his authentic role as a social fighter against the governors of the republic times in Cuba.

  12. Between diplomacy and letters: a sketch of Manuel de Oliveira Lima's search for a Brazilian identity

    Directory of Open Access Journals (Sweden)

    Joshua Alma Enslen

    2006-01-01

    Full Text Available Manuel de Oliveira Lima as an important diplomat of the First Republic in Brazil reflects on an individual, national, and universal plane the convergence of politics and literature. His writing demonstrates an explicit attempt to construct a national identity that emanates not only between literature and diplomacy, but also between the personal and the historical, as well as, the foreign and the national. This paper analyzes brief examples of his criticism, personal correspondence, and fiction that demonstrate the convergence of these fields.

  13. Aplikasi Sistem Informasi Geografis Produksi Padi dan Cabe di Kabupaten Lima Puluh Berbasis Android

    Directory of Open Access Journals (Sweden)

    Harison Harison

    2017-04-01

    Full Text Available Kabupaten Lima Puluh Kota merupakan salah satu daerah produksi padi dan cabe. Saat ini pemasaran hasil produksi hanya di antarkan ke pasar terdekat, pada hal dengan sentuhan sistem informasi geografis maka hasil  panen petani akan dicari oleh marketing ke kebun langsung, karna kebutuhan akan padi dan cabe ini sangat di cari pasar.  Aplikasi Sistem informasi geografis produksi padi dan cabe berbasis android  dirancang dengan menggunakan bahasa pemograman java dan database MySqLite dan untuk GIS memanfaatkan google maps dan langsung mengambil titik koordinat pada setiap Nagari atau Desa yang ada pada Kabupaten Limapuluh Kota.

  14. Construcción y refuerzo de la vulnerabilidad en dos espacios marginales de Lima

    OpenAIRE

    Robert, Jérémy; Sierra, Alexis

    2014-01-01

    Los Asentamientos Humanos de la Margen Izquierda del Río Rímac (MIRR), y los del Cerro El Agustino, simbolizan los primeros barrios populares e informales de Lima. Estos presentan las características de espacios de riesgo: la precariedad de las condiciones de vida, diferentes formas de marginalidad así como una fuerte exposición a los fenómenos de origen natural y antrópico. Estos espacios son el objeto de una representación del riesgo marcada, tanto desde el punto de vista de la población co...

  15. Drug consumption and violence in female work Zapallal - Lima/Peru Consumo de drogas y violencia en el trabajo femenino Zapallal - Lima/Perú Consumo de drogas e violência no trabalho feminino Zapallal - Lima/Perú

    Directory of Open Access Journals (Sweden)

    Yesenia Musayón

    2005-12-01

    Full Text Available The study design was descriptive, correlational, cross-sectional, and qualitative. The objective was to identify sociodemographic and labor risk factors for drug consumption and types of violence in the workplace related to drug consumption, as well as to understand the perception of female workers regarding the relationship between drug consumption and workplace violence. We surveyed 125 women workers of four slums in the area of Zapallal, Lima, Peru, interviewing 16 women who experienced workplace violence. Among the participants, 52.8% consumed alcohol and 6.4% illegal drugs. Catholic women were at risk for consuming alcohol, while participants under 20 years of age were at risk for consuming illicit drugs. In this group, 17.6% of the women experienced verbal violence, 9.6% physical violence and 1.6% were sexually harassed in the workplace. Women victims of verbal violence have a risk for consuming illicit drugs. These women perceived themselves as a vulnerable group for violence in the workplace and weak for defending themselves. They expressed fear or shame in reporting cases of violence.Este estudio descriptivo, correlacional, transversal y cualitativo tuvo como objetivos identificar factores de riesgo sociodemográficos y laborales del consumo de drogas y tipos de violencia en el trabajo relacionados al consumo de drogas, y también comprender la percepción de la mujer trabajadora sobre este fenómeno. Se encuestó a 125 mujeres trabajadoras de 4 AAHH de Zapallal-Lima, y se entrevistó a 16 que sufrieron violencia en ambientes laborales. El 52,8% de estas mujeres consumen alcohol y el 6,4% drogas ilegales. Las católicas están en riesgo de consumir alcohol y las menores de 20 años en riesgo de consumir drogas ilícitas. El 17,6% de mujeres sufrió violencia verbal, el 9,6% violencia física y el 1,6% hostigamiento sexual en el trabajo. Las victimas de violencia verbal tienen riesgo de consumir drogas ilícitas. La mujer se percibe como

  16. FREQUENCY OF TOXOPLASMA GONDII IN CATS IN METOPOLITAN LIMA AND CONCORDANCE BETWEEN INDIRECT IMMUNOFLUORESCENCE AND INDIRECT HAEMAGLUTINATION TECHNIQUES

    OpenAIRE

    Cerro T., Luis; Laboratorio de Medicina Veterinaria Preventiva, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Lima; Chávez V., Amanda; Laboratorio de Medicina Veterinaria Preventiva, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Lima; Casas A., Eva; Laboratorio de Medicina Veterinaria Preventiva, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Lima; Suárez A., Francisco; Laboratorio de Medicina Veterinaria Preventiva, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Lima.; Rubio V., Alicia; Laboratorio de Medicina Veterinaria Preventiva, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Lima

    2012-01-01

    The aim of the present work was to estimate the frequency of antibodies anti- Toxoplasma gondii in cats of Lima city, and to determine the rate of concordance between the Indirect Immunofluorescence (IFI) and Indirect Haemaglutination (HAI) assays. A total of 178 cat serum samples were collected in veterinary clinics of varios districts of Lima. The results showed 11.2 ± 4.6% (HAI) and 17.9 ± 5.6% (IFI) positive serums to T. gondii, and without statiscal differences due to sex and age group. ...

  17. Caracterización médico legal del feminicidio en la Morgue Central de Lima

    OpenAIRE

    Castro Pizarro, Hugo Vladimir

    2013-01-01

    Objetivo: Identificar las características médico legales del feminicidio, según los registros de la Morgue Central de Lima (MCL) para el período 2009 - 2010. Material y método: Se consignó la información de 2469 occisas registradas en la Morgue Central de Lima (MCL), durante el período 2009 - 2010. Los datos fueron analizados de forma cuantitativa y cualitativa. Resultados: La mayor causa de muerte fue natural (38,9%), seguida de causa por determinar (28,6%) y accidental (18,1%). El ...

  18. Determinación de la salud bucal en personas mayores institucionalizadas residentes en Lima, Perú

    OpenAIRE

    Reyes Saberbein, Jorge; Rodríguez Torres, Luis; Paz-Soldán, Roberto; García, Víctor; Fernández Reyes, Meylin; Yparraguirre Carbajal, Janneth; Montalvo Meléndez, Williams; Bravo Morocho, Karen; Guardia Quispe, Allinson; Pino Guerrero, Fiorella; Portugal, Brenda

    2013-01-01

    Objetivo. Evaluar y conocer la salud bucal en personas mayores institucionalizadas, residentes en la ciudad de Lima. Se trabajó en dos centros geriátricos ubicados en dos distritos de la ciudad de Lima. Material y métodos. Estudio descriptivo transversal. La muestra estuvo conformada por 24 personas. Se realizó la recopilación de los datos sociodemográficos mediante un cuestionario, una percepción del evaluador sobre el estado de salud extra oral, ATM, estado de las mucosas, presenci...

  19. Gestión y percepción de marcas de las universidades de Lima Metropolitana 2014

    OpenAIRE

    Orellana Guzmán, Edmundo Miguel

    2015-01-01

    Abarca la relación entre la gestión de marcas que desarrollan las universidades de Lima metropolitana y la percepción de marcas de las universidades por parte de la población de Lima metropolitana. La gestión de marcas de las universidades es el proceso de crear, diseñar construir, difundir y dar valor a su nombre, símbolo o marca mediante la publicidad en los diferentes medios de comunicación social y otras formas de comunicación; con el fin de llamar la atención, hacerla conocida, genera...

  20. Factores asociados a lesiones cervicales o presencia del virus del papiloma humano en dos poblaciones de estudiantes de Lima

    OpenAIRE

    María Valderrama C; Francisco E. Campos; Cárcamo, César P; García,

    2007-01-01

    Objetivos: Determinar la prevalencia y factores asociados a lesiones cervicales o presencia del virus del papiloma humano (VPH) en mujeres estudiantes en educación superior de 18 a 26 años de Lima. Materiales y métodos: Se realizó un estudio de corte transversal, en dos universidades y un instituto superior tecnológico de Lima, durante los meses de agosto a diciembre del 2001. Se aplicó un cuestionario y se colectaron muestras para Papanicolaou (PAP) y detección del ADN de los VPH 6, 11, 16, ...

  1. Caracterización médico legal del feminicidio en la Morgue Central de Lima

    OpenAIRE

    Castro Pizarro, Hugo Vladimir

    2013-01-01

    Objetivo: Identificar las características médico legales del feminicidio, según los registros de la Morgue Central de Lima (MCL) para el período 2009 - 2010. Material y método: Se consignó la información de 2469 occisas registradas en la Morgue Central de Lima (MCL), durante el período 2009 - 2010. Los datos fueron analizados de forma cuantitativa y cualitativa. Resultados: La mayor causa de muerte fue natural (38,9%), seguida de causa por determinar (28,6%) y accidental (18,1%). El ...

  2. Between the foreign and the local: French midwifery, traditional practitioners, and vernacular medical knowledge about childbirth in Lima, Peru.

    Science.gov (United States)

    Warren, Adam

    2015-01-01

    This article examines the politics of midwifery and the persecution of untitled female assistants in childbirth in early republican Peru. A close reading of late colonial publications and the works of Benita Paulina Cadeau Fessel, a French obstetriz director of a midwifery school in Lima, demonstrates both trans-Atlantic and local influences in the campaign against untitled midwives. Cadeau Fessel's efforts to promote midwifery built upon debates among writers in Peru's enlightened press, who vilified untrained midwives' and wet nurses' vernacular medical knowledge and associated them with Lima's underclass. One cannot understand the transfer of French knowledge about professional midwifery to Peru without reference to the social, political, and cultural context.

  3. Earthquakes in the central coast of Perú: Could it be Lima the scene of a future disaster?

    OpenAIRE

    Morales-Soto, Nelson; Facultad de Medicina, Universidad Nacional Mayor de San Marcos. Lima, Perú. Sociedad Peruana de Medicina de Emergencias y Desastres, Lima, Perú. Médico emergenciólogo.; Zavala, Carlos; Centro Peruano Japonés de Investigaciones Sísmicas y Mitigación de Desastres, Facultad de Ingeniería Civil, Universidad Nacional de Ingeniería. Lima, Perú. Ingeniero civil.

    2008-01-01

    In the pages of history are registered with the threats of the future. The seismic history of Peru shows that we live in an area of high seismic activity where the Lima city has been a protagonist on several occasions of destructive earthquakes and other natural phenomena associated such as tsunamis. In this report the reasons why an earthquake could affect the city of Lima in the future were exposed. En las páginas de la historia están registradas las amenazas del futuro. La historia sí...

  4. Determinación de la salud bucal en personas mayores institucionalizadas residentes en Lima, Perú

    OpenAIRE

    Reyes Saberbein, Jorge; Rodríguez Torres, Luis; Paz-Soldán, Roberto; García, Víctor; Fernández Reyes, Meylin; Yparraguirre Carbajal, Janneth; Montalvo Meléndez, Williams; Bravo Morocho, Karen; Guardia Quispe, Allinson; Pino Guerrero, Fiorella; Portugal, Brenda

    2013-01-01

    Objetivo. Evaluar y conocer la salud bucal en personas mayores institucionalizadas, residentes en la ciudad de Lima. Se trabajó en dos centros geriátricos ubicados en dos distritos de la ciudad de Lima. Material y métodos. Estudio descriptivo transversal. La muestra estuvo conformada por 24 personas. Se realizó la recopilación de los datos sociodemográficos mediante un cuestionario, una percepción del evaluador sobre el estado de salud extra oral, ATM, estado de las mucosas, presenci...

  5. Análisis comparativo del comportamiento biomecánico de dos limas rotatorias de Níquel-Titanio

    OpenAIRE

    Niño Barrera, Javier Laureano

    2013-01-01

    Las limas rotatorias de N��quel-Titanio son un avance tecnol�ogico que permite al endodoncista llevar a cabo tratamientos de endodoncia en morfolog��as irregulares sin alterarlas. Lamentablemente estos instrumentos pueden fracturarse sin presentar se~nales visibles que permitan prevenir este accidente. Por lo tanto el objetivo del presente estudio fue determinar los factores estructurales de dise~no mec�anico asociados a la falla(por fractura) de las limas de N��quel-Titanio pa...

  6. When is rotational angiography superior to conventional single‐plane angiography for planning coronary angioplasty?

    Science.gov (United States)

    Taylor, Jane; Boutong, Sara; Brett, Sarah; Louis, Amal; Heppenstall, James; Morton, Allison C.; Gunn, Julian P.

    2015-01-01

    Objectives To investigate the value of rotational coronary angiography (RoCA) in the context of percutaneous coronary intervention (PCI) planning. Background As a diagnostic tool, RoCA is associated with decreased patient irradiation and contrast use compared with conventional coronary angiography (CA) and provides superior appreciation of three‐dimensional anatomy. However, its value in PCI remains unknown. Methods We studied stable coronary artery disease assessment and PCI planning by interventional cardiologists. Patients underwent either RoCA or conventional CA pre‐PCI for planning. These were compared with the referral CA (all conventional) in terms of quantitative lesion assessment and operator confidence. An independent panel reanalyzed all parameters. Results Six operators performed 127 procedures (60 RoCA, 60 conventional CA, and 7 crossed‐over) and assessed 212 lesions. RoCA was associated with a reduction in the number of lesions judged to involve a bifurcation (23 vs. 30 lesions, P RoCA improved confidence assessing lesion length (P = 0.01), percentage stenosis (P = 0.02), tortuosity (P RoCA augments quantitative lesion assessment, enhances confidence in the assessment of coronary artery disease and the precise details of the proposed procedure, but does not affect X‐ray dose, contrast agent volume, or procedure duration. © 2015 Wiley Periodicals, Inc. PMID:26012725

  7. Subtraction CT angiography for evaluation of intracranial aneurysms: comparison with conventional CT angiography

    Energy Technology Data Exchange (ETDEWEB)

    Li, Qi; Li, Kewei; Xie, Peng [The First Affiliated Hospital, Chongqing Medical University, Department of Neurology, Chongqing (China); Lv, Fajin; Li, Yongmei; Luo, Tianyou [The First Affiliated Hospital, Chongqing Medical University, Department of Radiology, Chongqing (China)

    2009-09-15

    The purpose of our study was to compare the diagnostic performance of subtraction computed tomography angiography (CTA) with conventional nonsubtracted CTA and digital subtraction angiography (DSA) for the detection of intracranial aneurysms. A total of 76 patients underwent both subtraction CTA and conventional CTA for the detection and therapy planning of suspected intracranial aneurysms. Subtraction and conventional CTA images were independently assessed by two readers in a blinded manner. The possibility of endovascular treatment or surgical clipping was also assessed based on information provided by CT angiograms alone. In 64 patients, 75 aneurysms were present on DSA. On a per-aneurysm basis, the sensitivity of subtraction CTA was 98.6% for reader 1, and 100% for reader 2. However, sensitivity of conventional CTA was 94.6% for reader 1, and 93.3% for reader 2. Therapeutic decisions could be made regarding 63 patients based on information provided by subtraction CTA images. However, conventional CTA provided sufficient information to make this decision for 55 patients. Conventional CTA has limited sensitivity in detecting very small aneurysms as well as aneurysms adjacent to bone. Subtraction CTA performed on a 64-row multidetector CT is an accurate and promising diagnostic tool that seems to be equivalent to 2D DSA for the detection and pretreatment planning of intracranial aneurysms. (orig.)

  8. Diabetic Macular Ischemia Diagnosis: Comparison between Optical Coherence Tomography Angiography and Fluorescein Angiography

    Science.gov (United States)

    Lima, Talita Toledo; Louzada, Ricardo Noguera; Rassi, Alessandra Thome; Isaac, David Leonardo Cruvinel; Avila, Marcos

    2016-01-01

    Purpose. To compare fluorescein angiography (FA) and optical coherence tomography angiography (OCTA) images of foveal avascular zone (FAZ) in patients with diabetic retinopathy (DR) with and without diabetic macular ischemia (DMI). Methods. The Wilcoxon signed-rank test was used to compare area measurements and p values of <0.05 were considered statistically significant. FA and OCTA images were independently graded by 2 observers that reached agreement regarding quantitative DMI according established protocols. The ischemic area was divided into “large” macular ischemia (superior to 0.32 mm2) and “small” (inferior to 0.32 mm2) groups. Quantitative analyses of the FAZ were performed using custom software. Results. Thirty-four eyes from 34 diabetic patients were enrolled. Subjects with DMI presented a mean area on FA and OCTA of 0.68 ± 0.53 mm2 and 0.58 ± 0.35 mm2, respectively (p = 0.1374). Patients without DMI presented a mean area on FA and OCTA of 0.19 ± 0.67 mm2 and 0.20 ± 0.79 mm2, respectively (p = 0.9594). The ICC for the FAZ measurements between the 2 observers on FA and OCTA was 0.96 and 0.92, respectively. Conclusion. OCTA represents a novel technique for the diagnosis of DMI and it may become an alternative to FA for this purpose. PMID:27891250

  9. Dexmedetomidine compared with propofol for pediatric sedation during cerebral angiography

    Directory of Open Access Journals (Sweden)

    Ke Peng

    2014-01-01

    Full Text Available Background: Sedation of pediatric patients undergoing cerebral angiography is challenging. Although dexmedetomidine is used for sedation in various procedures, it has not been reported for pediatric patients undergoing cerebral angiography. This study compared the safety and efficacy of dexmedetomidine with that of propofol for cerebral angiography in pediatric patients. Materials and Methods: Sixty-two patients (6-15 years scheduled for elective cerebral angiography were apportioned randomly and equally to receive either propofol or dexmedetomidine sedation. Patients in the propofol group received an initial bolus of intravenous propofol (1 mg/kg and a maintenance infusion of 100 μg/kg/min. Patients in the dexmedetomidine group received an initial bolus of intravenous dexmedetomidine (1 μg/kg over 10 min and a maintenance infusion of 1 μg/kg/h. An additional bolus of propofol 0.5 mg/kg or dexmedetomidine 0.25 μg/kg was repeated if needed. Procedure time, time to recovery and adverse events associated with sedation were recorded. Results: All cerebral angiographies were completed successfully under sedation with dexmedetomidine or propofol. Mean cerebral angiography time was 36 ± 10 min in the propofol group and 31 ± 7 min in the dexmedetomidine group (P = 0.047. The percentage of airway events and total adverse events were significantly higher in the propofol group (P < 0.05. Heart rate decreased in the dexmedetomidine group and mean arterial pressure decreased in the propofol group (P < 0.05, each. Conclusion: Although cerebral angiography can be performed successfully under sedation with either propofol or dexmedetomidine, dexmedetomidine may be a better alternative because of fewer respiratory adverse events.

  10. Cerebral angiography in patients with complicated migraine

    Energy Technology Data Exchange (ETDEWEB)

    Zeiler, K.; Wessely, P.; Holzner, F.

    1985-08-01

    38 patients (mean age: 29 years) were investigated by means of complete 4-vessel angiography: all of them were suffering from complicated migraine without detectable vascular malformation. Stenoses of the great craniocervical vessels were found in 11 patients (28.9%), but there was not a single case of vascular occlusion. A correlation between the localization of the stenosis, the localization of the headache and the presumed region of the transient cerebral function disturbance was found only in a few patients. Concerning the morphological changes of the small intracranial arterial branches, there was hardly an difference between clinically affected and non-affected territories of the middle cerebral artery. The angiograms of the 38 cases of complicated migraine were compared with the angiograms of 40 patients suffering from strokes in the young and those of 49 patients with transient ischaemic attacks. There were remarkably fewer stenoses or occlusions in the great craniocervical arteries of patients suffering from complicated migraine (28.9%) than in the vessels of cases of stroke in the young (52.5%). However, the incidence was comparable with the results in patients with transient ischaemic attacks (34.7%). The degree of morphological changes in the small intracranial arterial branches is likely to depend primarily on the patient's age and less on the diagnosis. The results suggest that in almost 30% of patients with complicated migraine - even at juvenile age-stenoses of the great craniocervical vessels might be found. However, considering the fact that most of the stenoses are without haemodynamic significance and their localization is not in agreement with the clinical data, the pathogenetic value of these vessel wall changes is highly questionable. (Author).

  11. Digital subtraction angiography in cerebral infarction

    Energy Technology Data Exchange (ETDEWEB)

    Cho, Sin Young; Kim, Ji Hun; Suh, Hong Kil; Kim, Hyo Heon; Kwack, Eun Young; Lee, Il Seong [College of Medicine Hallym University, Seoul (Korea, Republic of)

    1995-01-15

    The usefulness and radiographic findings of the angiography in cerebral infarction are well known. We attempted to evaluate the angiographic causes, findings, and the usefulness of DSA in cerebral infarction. The authors reviewed retrospectively DSA images of 51 patients who were diagnosed as having cerebral infarction by brain CT and/or MRI and clinical settings. DSA was performed in all 51 patients, and in 3 patients, conventional angiogram was also done. Both carotid DSA images were obtained in AP, lateral, oblique projections, and one or both vertebral DSA images in AP and lateral. The authors reviewed the patient's charts for symptoms, operative findings and final diagnosis, and analysed DSA findings of cerebral atherosclerosis with focus on 6 major cerebral arteries. Among the 51 patients of cerebral infarction 43 patients (84.3%) had cerebral atherosclerosis, 1 dissecting aneurysm, 1 moyamoya disease and 6 negative in angiogram. DSA findings of cerebral atherosclerosis were multiple narrowing in 42 patients (97.7%), tortuosity in 22 (51.2%), dilatation in 14, occlusion in 12, avascular region in 8, collaterals in 7, ulcer in 6, and delayed washout of contrast media in 3. In cerebral atherosclerosis, internal carotid artery was involved in 37 patients (86.0%), middle cerebral artery in 29 (67.4%) posterior cerebral artery in 28, anterior cerebral artery in 26, vertebral artery in 22, and basilar artery in 15. Intracranial involvement of cerebral atherosclerosis (64.9%) was more common than extracranial involvement (16.2%). In cerebral infarction MRA may be the screening test, but for more precise evaluation of vascular abnormality and its extent, DSA should be considered.

  12. Stent sizing strategies in renal artery stenting: the comparison of conventional invasive renal angiography with renal computed tomographic angiography

    Directory of Open Access Journals (Sweden)

    Jacek Kadziela

    2016-05-01

    Full Text Available Introduction : Randomized trials comparing invasive treatment of renal artery stenosis with standard pharmacotherapy did not show substantial benefit from revascularization. One of the potential reasons for that may be suboptimal procedure technique. Aim : To compare renal stent sizing using two modalities: three-dimensional renal computed tomography angiography (CTA versus conventional angiography. Material and methods: Forty patients (41 renal arteries, aged 65.1 ±8.5 years, who underwent renal artery stenting with preprocedural CTA performed within 6 months, were retrospectively analyzed. In CTA analysis, reference diameter (CTA-D and lesion length (CTA_LL were measured and proposed stent diameter and length were recorded. Similarly, angiographic reference diameter (ANGIO_D and lesion length (ANGIO_LL as well as proposed stent dimensions were obtained by visual estimation. Results: The median CTA_D was 0.5 mm larger than the median ANGIO_D (p < 0.001. Also, the proposed stent diameter in CTA evaluation was 0.5 mm larger than that in angiography (p < 0.0001. The median CTA_LL was 1 mm longer than the ANGIO_LL (p = NS, with significant correlation of these variables (r = 0.66, p < 0.0001. The median proposed stent length with CTA was equal to that proposed with angiography. The median diameter of the implanted stent was 0.5 mm smaller than that proposed in CTA (p < 0.0005 and identical to that proposed in angiography. The median length of the actual stent was longer than that proposed in angiography (p = 0.0001. Conclusions : Renal CTA has potential advantages as a tool adjunctive to angiography in appropriate stent sizing. Careful evaluation of the available CTA scans may be beneficial and should be considered prior to the planned procedure.

  13. 3-T contrast-enhanced MR angiography in evaluation of suspected intracranial aneurysm: comparison with MDCT angiography.

    Science.gov (United States)

    Nael, Kambiz; Villablanca, J Pablo; Mossaz, Léonard; Pope, Whitney; Juncosa, Alex; Laub, Gerhard; Finn, J Paul

    2008-02-01

    The purpose of this study was to prospectively evaluate a high-spatial-resolution contrast-enhanced 3-T MR angiography protocol for detection and characterization of intracranial aneurysms and to compare the results with those of MDCT angiography. Forty-one patients with suspected intracranial aneurysm underwent high-spatial-resolution 3D contrast-enhanced MR angiography and CT angiography (CTA). With a generalized autocalibrating partially parallel acquisition algorithm with an acceleration factor of 4 at 3 T, contrast-enhanced MR angiographic images were acquired over 20 seconds with a spatial-resolution of 0.7 x 0.7 x 0.8 mm. CTA images were acquired with a spatial resolution of 0.35 x 0.35 x 0.8 mm on a 16-MDCT scanner in 17 seconds. The images from the two studies were evaluated independently by two neuroradiologists for image quality, presence of aneurysm, and characterization of aneurysm. The dimensions of the aneurysm were measured independently with both techniques. A total of 25 aneurysms were identified with both contrast-enhanced MR angiography and CTA. A comparative analysis of detection and depiction of aneurysms showed excellent interobserver agreement for both contrast-enhanced MR angiography (kappa = 0.81) and CTA (kappa = 0.91) images. There was significant correlation between the techniques for both qualitative assessment of aneurysm depiction (rho = 0.92; 95% CI, 0.88-0.95) and quantitative dimensional measurement of aneurysm size (r = 0.94; 95% CI, 0.92-0.97). Contrast-enhanced MR angiography at 3 T is reliable for evaluation and characterization of intracranial aneurysms. The results are comparable with those of MDCTA.

  14. Sérgio com Lima: um encontro inusitado em meio aos modernismos

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    Lilia Moritz Schwarcz

    Full Text Available RESUMO Partindo do encontro entre Lima Barreto e Sérgio Buarque de Holanda, em 1922, no Rio de Janeiro, recuperamos debates estéticos e políticos da Primeira República, evitando qualquer cisão rígida entre modernistas e não modernistas. Relações de classe, escolas literárias, o espaço urbano e os valores públicos, assim como os dilemas da democracia numa República percebida por ambos como oligárquica, são temas por meio dos quais tentamos aproximar os dois autores, sem deixar de lado suas diferenças. A reflexão posterior de Sérgio Buarque, incluindo a crítica literária e a primeira edição de Raízes do Brasil, é analisada a partir de eixos que tornam Lima Barreto um contraponto para compreender a desconfiança diante de valores republicanos nunca concluídos - tema que atravessa a ficção de um, e a reflexão histórica do outro.

  15. Factores asociados a recaídas por tuberculosis en Lima este - Perú

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    María Ríos Hipólito

    2002-01-01

    Full Text Available Objetivo: Determinar los factores de riesgo asociados a recaídas por tuberculosis en Lima Este - Perú, entre marzo y diciembre del 2000. Materiales y métodos: estudio caso-control. Se definió a los casos (184 como los pacientes que recibieron tratamiento con el esquema I alguna vez, egresaron como curados y volvieron a presentar otro episodio de tuberculosis BK positivo durante 1999. Los controles (368 fueron los pacientes nuevos con tuberculosis BK positivo tratados en 1998 que no recayeron. Resultados: se asociaron significativamente a las recaídas el sexo masculino, la edad mayor de 50 años, el consumo de drogas, la residencia en un área urbana, el hacinamiento, la percepción errada de la enfermedad (PEE y la desocupación, no así el contacto con un paciente tuberculoso. Luego del análisis multivariado, sólo se asociaron el área urbana, el hacinamiento, la PEE y el tratamiento irregular. Conclusiones: la residencia en un área urbana, el hacinamiento, la PEE y la irregularidad en el tratamiento son factores asociados significativamente a recaídas en pacientes con TBC pulmonar BK(+ de Lima Este, Perú.

  16. Luisa Prisciliana Portilla Durand Léxico peruano / Español de Lima

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    Marco Aurelio Ferrell Ramírez

    2011-05-01

    Full Text Available Todo idioma es una entidad en continua variación, en todos sus niveles: fonético-fonológico, gramatical y léxico; a esta apreciación general debemos añadir que la realidad lingüística refleja también las diferencias existentes por nivel socioeconómico, por edad, por actividad laboral o profesional, etc.      Correspondientemente con lo expuesto, siempre será necesario, cada cierto tiempo, dar cuenta de las variaciones o innovaciones que se producen en una lengua. En el plano del léxico, del vocabulario, esto es lo que se propone la catedrática sanmarquina Luisa Portilla Durand en su libro  Léxico peruano / Español de Lima (LPEL que muy bien, desde el título, determina el alcance geográfico-político de su trabajo, que no es poco considerando que Lima es la capital del Perú.

  17. La estatua de Francisco Pizarro en Lima. Historia e identidad nacional

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    Varón Gabai, Rafael

    2006-04-01

    Full Text Available Historical account of the statue of Francisco Pizarro in Lima, one of the few that recalls the memory of a conquistador in Latin America. Mention is made of the foundry and exhibition of the different statues of Pizarro as conceived by artist Charles Cary Rumsey, and popular ideas about it. Finally, analysis is offered of the present day perception Peruvians have of the Conquest and what Pizarro’s statue symbolizes to them.

    Recuento histórico de la estatua dedicada a Francisco Pizarro en Lima, una de las pocas que conmemoran a un conquistador español en Hispanoamérica. Se relata la fabricación y exhibición de las diversas estatuas gemelas que realizó el artista Charles Cary Rumsey y las creencias populares al respecto. Asimismo, se analiza la vigencia que mantiene entre la población peruana actual el impacto de la conquista y el símbolo que representa la estatua de Pizarro.

  18. 1814 en Chile: de la desobediencia a Lima a la ruptura con España

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    Ossa Santa Cruz, Juan Luis

    2016-06-01

    Full Text Available This article analyzes how the Chilean revolutionaries moved from the disobedience to Lima to the break with Spain in 1814. First, it studies the origins of the civil war that hit Chile since 1813. Then it studies the political factionalism within the revolutionary side and the importance of the Treaty of Lircay. Finally, it presents an account of the Americanist approach adopted by the Chilean rebels after signing a political and military alliance with José de San Martín.Este artículo interpreta el paso de la desobediencia a Lima a la ruptura definitiva con España durante el año 1814. Primero estudia los orígenes de la guerra civil en Chile comenzada en 1813. Luego presenta las causas del faccionalismo en el bando revolucionario y enfatiza la importancia del Tratado de Lircay. Finalmente, analiza la causa americanista seguida por los rebeldes chilenos después de firmar una alianza político-militar con José de San Martín.

  19. Los incas representados (Lima – siglo XVIII: ¿Supervivencia o renacimiento?

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    Perissat, Karine

    2000-12-01

    Full Text Available At the beginning of the 18th Century the indigenous people of Lima were accorded permission to celebrate the Spanish kings in a segregated group. The criollo elites expected them to represent their old kings in the demostrations, thus taking part in the exaltation of the Peruvian history. The descriptions of the limeño festivities, which show that the costumes of the Incas in the masquerades were highly hibridisized and baroque, allow us to analyse the characteristics of the Inca renaissance in the 18th Century. The costume played a basic role in the rehabilitation of the old Peruvian kings in the Colonial society.

    Al principio del siglo XVIII, se les otorgó a los indios de Lima la posibilidad de festejar a los monarcas españoles en grupo aparte. De ellos se esperaba que representasen a sus antiguos monarcas en desfiles o mascaradas y participaran por consiguiente, animados por las elites criollas, en la exaltación de la historia peruana. Fuertemente mestizada y apropiada a los gustos barrocos, la indumentaria de los incas de las mascaradas descrita en las relaciones de fiestas limeñas nos permite analizar las características del renacimiento incaico del siglo XVIII y ver cómo la vestimenta desempañaba un papel fundamental en la rehabilitación de los antiguos monarcas peruanos en la sociedad colonial.

  20. Multiple introductions of multidrug-resistant tuberculosis into households, Lima, Peru.

    Science.gov (United States)

    Cohen, Ted; Murray, Megan; Abubakar, Ibrahim; Zhang, Zibiao; Sloutsky, Alexander; Arteaga, Fernando; Chalco, Katiuska; Franke, Molly F; Becerra, Mercedes C

    2011-06-01

    Two cases of multidrug-resistant tuberculosis (MDR TB) in a household are assumed to reflect within-household transmission. However, in high-incidence areas of MDR TB, secondary cases may arise through exposure to MDR TB in the community. To estimate the frequency of multiple introductions of MDR TB into households, we used spoligotyping and 24-loci mycobacterial interspersed repetitive unit- variable number tandem repeats to classify isolates from 101 households in Lima, Peru, in which >1 MDR TB patient received treatment during 1996-2004. We found different MDR TB strains in >10% of households. Alternate approaches for classifying matching strains produced estimates of multiple introductions in <38% of households. At least 4% of MDR TB patients were reinfected by a second strain of MDR Mycobacterium tuberculosis. These findings suggest that community exposure to MDR TB in Lima occurs frequently. Rapid drug sensitivity testing of strains from household contacts of known MDR TB patients is needed to identify optimal treatment regimens.

  1. The margin has many sides: diversity among gay and homosexually active men in Lima.

    Science.gov (United States)

    Caceres, C F; Rosasco, A M

    1999-01-01

    This study provides a perspective on the sexual culture, self-representations and behaviors of men who have sex with men. Focus groups and semi-structured interviews were conducted with gay-identified men from both working class and middle-class backgrounds, non-gay-identified men who had sex with men, "fletes" (young men who sell homosexual sex), and transvestites. Ages among the study group ranged from 18 to 35. Issues explored included homosexuality and bisexuality, sexual experiences, socialization and support networks, "fleteo" and prostitution, AIDS-related concerns, emotional attachment, sexual identity and self-image. Findings suggest that a unitary homosexual culture does not exist in Lima. Ideologies structuring relationships within homoerotic culture range from more the more traditional, in which relationships are organized according to gender-transformed relationships, whereby ordinary males performed as "activos" with feminized "pasivo" males, to contemporary Western patterns involving equals who are able to exchange sexual roles. Awareness of this diversity should facilitate the identification of different sexual health needs and the protection of sexual rights, leading to the development of programs more sensitive to the cultural heterogeneity of male homosexualities in Lima.

  2. Vidas de santos y santas vidas: hagiografías reales e imaginarias en Lima colonial

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    Iwasaki Cauti, Fernando

    1994-06-01

    Full Text Available Not available.

    La presente investigación tiene como finalidad demostrar que las hagiografías relativas a personajes que vivieron en Lima durante el siglo XVII, constituyen una fuente valiosa para el estudio de la cultura y la mentalidad coloniales, en la medida en que los protagonistas de aquellas "vidas ejemplares" no sólo fueron hombres y mujeres señalados en virtud, sino los miembros de una sociedad piadosa cuyo fervor promovió canonizaciones y diversos cultos populares. Así, la primera parte está dedicada a precisar el valor de las hagiografías y a señalar las principales diferencias entre las "vidas" medievales y las coloniales. A continuación propone que el carácter ejemplarizante de las mismas estaba dirigido a los disipados clérigos de Lima y no a la devota sociedad laica. Por último, a través del análisis de la hagiografía del "Venerable" Nicolás Ayllón -un sastre indígena fallecido en "olor de santidad"- se demuestran las incongruencias entre el imaginario popular y la doctrina oficial.

  3. Conventos, monasterios y propiedad urbana en Lima, siglo XIX: El caso de la Buenamuerte

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    Pablo F. Luna

    2002-01-01

    Full Text Available En este artículo se analiza el proceso de desvinculación y desamortización de la propiedad urbana en Perú durante el siglo XIX, tomando el caso del Convento de la Buenamuerte; una pequeña orden religiosa masculina establecida en la ciudad de Lima desde finales de la Colonia. El autor se propone aproximarse a una serie de problemáticas generales relacionadas con el tema, con el fin de que se convierta en una introducción útil con miras a estudios posteriores, tomando como fuente principal la documentación de la Colección Terán depositada en el Archivo General de la Nación (Lima. El texto aborda, entre otros temas, la lógica de funcionamiento del instrumental jurídico desvinculador y desamortizador de mediano plazo creado por el Estado peruano independiente; el deterioro del patrimonio estatal; la identidad social de sus beneficiarios; la evolución de la propiedad de la Iglesia Católica peruana y de las órdenes religiosas; y la ausencia real de un proceso de desamortización eclesiástica, comparable con los de otras realidades del mundo hispanoamericano

  4. Survey del parasitismo intestinal de las ratas grises (Mus norvegicus en la ciudad de Lima

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    Víctor M Ayulo R

    1947-12-01

    Full Text Available Hemos hecho un survey del parasitismo intestinal en 1,000 ratas grises (Mus norvegicus capturadas en la ciudad de Lima, llegando a las siguientes conclusiones: 1.- La incidencia del parasitismo intestinal en las ratas examinadas es de 87.30%. 2.- El 46.50% de estos roedores son portadores de protozoos intestinales. 3.- La incidencia de infestación con E. histolytica es muy baja: 1.7%. 4.- Las ratas examinadas en la ciudad de Lima son portadoras de Blastocystis hominis en el 18.4%. 5.- La incidencia de infestación con helmintos es 76.40%. 6.- Dada la gran infestación de las ratas grises con Hymenolepis nana, Hymenolepis diminuta, y Gigantorhynchus moniliformis, debemos considerar a estos roedores como reservorios potenciales en la trasmisión de estos parásitos al hombre, mientras otras investigaciones no excluyan a la rata gris como reservorio. 7.- El análisis estadístico de la frecuencia de infestación arroja un promedio o media de 2.11 ± 0.06 parásitos diferentes por rata y un coeficiente de variación de 78%. Los límites de infestación de las ratas examinadas oscilan entre 1 y 6 parásitos diferentes por animal.

  5. Rumores y fantasías sociales. La tragedia de Alianza Lima, 1987

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    Vich , Víctor

    2006-05-01

    Full Text Available Este artículo explora las fantasías sociales y leyendas populares que emergieron luego de que el avión que llevaba a los jóvenes jugadores de fútbol del Alianza Lima se estrelló contra el Océano Pacífico, a cinco minutos de su aterrizaje en la ciudad de Lima, Perú, el 8 de diciembre de 1987. Se centra en los mártires de esta tragedia y, específicamente, en las distintas historias que surgieron sobre el hecho. Como revelan las narrativas de las entrevistas, las interpretaciones sobre el desastre se construyen a partir de significaciones sobre políticos corruptos, traficantes de droga y la Armada peruana. El artículo ubica a la tragedia dentro del dramático contexto social y político del Perú de los años 1980s, marcado por la crisis económica, la corrupción, la violencia política y la desesperanza. Como conclusión, argumentamos que las respuestas a ese incidente de parte de los hinchas del club, abrieron la oportunidad para expresar públicamente profundas diferencias políticas y culturales que vive el Perú contemporáneo.

  6. Adolfo Lima e a Introdução do Teatro Escolar Educativo em Portugal

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    António Silva

    2014-09-01

    Full Text Available Embora as representações teatrais em estabelecimentos escolares nunca tenham definitivamente acabado, é com a revolução pedagógica iniciada pelo Movimento da Escola Nova que as atividades dramáticas, e as artes em geral, voltam a granjear, desde a Grécia Antiga, um lugar de destaque na educação dos jovens. Adolfo Lima, influente pedagogo durante a I República, é um dos principais defensores das novas ideias pedagógicas. Professor e didata na Escola Oficina n.º 1, em Lisboa, ali vai implementar as novas metodologias, naquele que viria a ser reconhecido como um dos mais profícuos projetos educativos do nosso país. Na área da educação artística vai valorizar, essencialmente, o teatro escolar. As atividades dramáticas escolares são por si fundamentadas e orientadas de acordo com os objetivos da Educação Nova. Pelo seu papel ativo e pioneiro, há cerca de um século, na área do teatro escolar, Adolfo Lima pode ser considerado como o “pai” da expressão dramática e do teatroeducação em Portugal.

  7. ANGIOSPERMAS DEL HERBARIO MAGDALENA PAVLICH DE LA UNIVERSIDAD PERUANA CAYETANO HEREDIA- HUPCH, LIMA, PERÚ

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    Huaman, Luis

    2011-07-01

    Full Text Available Magdalena Pavlich Herbarium of the Cayetano Heredia Peruvian University (HUPCH has an important collection of botanical samples that come from six departments of Peru (Lima, Piura, Pasco, Apurimac, Moquegua and San Martin; therefore, it's considered an important source of reference for the Peruvian flora. According to the Angiosperm Phylogeny Group classification - APG III (2009, this herbarium contains 4026 specimens of vascular plants distributed in 105 families, 495 genus, and 1007 species. Within the collection are also 7 other families of non-vascular plant and 780 specimens of fungi. The collection of botanical material HUPCH held was from 1935 to 2008. With regard to the angiosperms, departments with the largest number of families were Lima (78, Piura (73 and Moquegua (50. The Asteraceae family is the most dominant (195 species, followed by Poaceae (99 species and Fabaceae (85 species. In conclusion, HUPCH is involved in the research, dissemination and conservation of the flora from different parts of our country; also one objective is to create an online database of plant resources from Peru.

  8. Age and growth of the Duckbill Catfish (Sorubim cf. lima in the Pantanal

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    J. M. F. Penha

    Full Text Available The Duckbill Catfish, Sorubim lima, is a predator of large South American rivers. The age and growth of S. lima were studied based on the pectoral fin-spines of samples collected from the Cuiabá River, Pantanal. The samples were taken from commercial and experimental hook-and-line fishing. An analysis of the marginal increment suggests that the growth rings are formed once a year during the dry season, from July to September (ANOVA type I: F = 4.183; g.l. = 3 and 104; p = 0.008. The estimate of the parameters that describe von Bertalanffy's growth curve by nonlinear regression of the observed lengths in the age were: L¥ = 56.0 cm (fork length; k = 0.245 year-1; t o = -2.605 years. The animals were estimated to have a life span of 9.6 years. The findings indicate that the fork length is a good predictor of the age of individuals of this fish species.

  9. Functional properties of proteins from Lima bean (Phaseolus lunatus L.) seeds.

    Science.gov (United States)

    Chel-Guerrero, L; Gallegos-Tintoré, S; Martínez-Ayala, A; Castellanos-Ruelas, A; Betancur-Ancona, D

    2011-04-01

    Functional properties were identified for the total globulin (TG), 7S and 11S fractions of Lima bean (Phaseolus lunatus L.) seeds. The 11S component accounted for 58.3% of TGs and the 7S for 41.7%. Solubility was higher in the 7S fraction, especially at alkaline pHs. Water-holding capacity was similar (3 g water/g sample) in both globulin fractions. Oil-holding capacity was higher in the 11S fraction, which also exhibited better foaming capacity and foam stability than the 7S and TG fractions at alkaline pHs. The TG and 7S fractions exhibited low emulsifying capacity and emulsion stability at different pHs (5, 7 and 9), but the 11S fraction had relatively higher values. In suspension at low concentrations, all fractions exhibited shear-thinning (pseudoplastic) behavior. The studied Lima bean globulin fractions exhibit functional properties which make them potentially apt for use in some industrial food systems.

  10. Multiple Introductions of Multidrug-Resistant Tuberculosis into Households, Lima, Peru

    Science.gov (United States)

    Murray, Megan; Abubakar, Ibrahim; Zhang, Zibiao; Sloutsky, Alexander; Arteaga, Fernando; Chalco, Katiuska; Franke, Molly F.; Becerra, Mercedes C.

    2011-01-01

    Two cases of multidrug-resistant tuberculosis (MDR TB) in a household are assumed to reflect within-household transmission. However, in high-incidence areas of MDR TB, secondary cases may arise through exposure to MDR TB in the community. To estimate the frequency of multiple introductions of MDR TB into households, we used spoligotyping and 24-loci mycobacterial interspersed repetitive unit–variable number tandem repeats to classify isolates from 101 households in Lima, Peru, in which >1 MDR TB patient received treatment during 1996–2004. We found different MDR TB strains in >10% of households. Alternate approaches for classifying matching strains produced estimates of multiple introductions in <38% of households. At least 4% of MDR TB patients were reinfected by a second strain of MDR Mycobacterium tuberculosis. These findings suggest that community exposure to MDR TB in Lima occurs frequently. Rapid drug sensitivity testing of strains from household contacts of known MDR TB patients is needed to identify optimal treatment regimens. PMID:21749756

  11. Jorge de Lima poeta em movimento (Do "menino impossível" ao Livro de sonetos

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    Alfredo Bosi

    2016-04-01

    Full Text Available O ensaio visa percorrer o itinerário poético de Jorge de Lima desde a publicação do poema "O mundo do menino impossível" até o Livro de sonetos. Após a passagem do estilo acadêmico-parnasiano para a linguagem modernista Jorge de Lima voltou-se para a evocação da paisagem social de sua província natal, Alagoas. Nos anos 1930 escreveu poemas afro-nordestinos reunidos, mais tarde, nos Poemas negros. A partir da sua conversão ao catolicismo, sob a influência do pintor Ismael Nery, a sua poesia é abertamente bíblica e cristã começando com Tempo e eternidade composto em parceria com Murilo Mendes. Túnica inconsútil e Anunciação e encontro com Mira-Celi aprofundam a sua tendência mística. O Livro de sonetos exprime, em formas clássicas, uma imaginação surrealista. A compreensão do dinamismo das imagens é um dos motivos condutores do ensaio.

  12. La primera botica de los hospitales de la ciudad de lima en el siglo XVI

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    Rabí Chara, Miguel

    2000-06-01

    Full Text Available

    The first hospitals established in south America, specifically in Lima in 1549, are reviewed by the author, hightlighting the first pharmacy arrived in 1551 for those hospitals, including the complete inventary and values of it's contents. In the same way the contract for its management is described and analyzed.



    El autor hace una reseña detallada sobre los primeros hospitales establecidos en la Ciudad de los Reyes de Lima, a partir de 1549; y en especial un comentario sobre la primera botica recibida en 1551 para dichos hospitales, junto con el contrato de compañía para su funcionamiento.

  13. Diagnostic accuracy of CT angiography in acute gastrointestinal bleeding.

    Science.gov (United States)

    Chua, A E; Ridley, L J

    2008-08-01

    The aim of the study was to carry out a systematic review determining the accuracy of CT angiography in the diagnosis of acute gastrointestinal bleeding. A search of published work in Medline and manual searching of reference lists of articles was conducted. Studies were included if they compared CT angiography to a reference standard of upper gastrointestinal endoscopy, colonoscopy, angiography or surgery in the diagnosis of acute gastrointestinal bleeding. Eight published studies evaluating 129 patients were included. Data were used to form 2 x 2 tables. Computed tomography angiography showed pooled sensitivity of 86% (95% confidence interval 78-92%) and specificity of 95% (95% confidence interval 76-100%), without showing significant heterogeneity (chi(2) = 3.5, P = 0.6) and (chi(2) = 5.4, P = 0.6), respectively. Summary receiver operating characteristic analysis showed an area under the curve of 0.93. Computed tomography angiography is accurate in the diagnosis of acute gastrointestinal bleeding and can show the precise location and aetiology of bleeding, thereby directing further management. Strong recommendations for use of CT cannot be made from this review because of the methodological limitations and further large prospective studies are needed to define the role of CT in acute gastrointestinal bleeding.

  14. Dimensión metropolitana de la globalización: Lima a fines del siglo XX

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    Miriam Chion

    2002-12-01

    Full Text Available La transformación espacial de Lima Metropolitana representa un estudio de caso de especial importancia debido a los dramáticos cambios habidos en los lugares de trabajo, de vivienda o de entretenimiento, y las relaciones entre ellos. Este estudio esboza elementos importantes a considerar en el desarrollo de otras regiones metropolitanas cuyas conexiones internacionales están en expansión. Este artículo incluye además una revisión teórica sobre espacios y redes urbanas, así como una evaluación empírica de la reorganización de actividades y redes metropolitanas en Lima, las que se han desarrollado en función a la habilidad de actores locales para captar capital e información internacionalThe spatial transformation of Metropolitan Lima represents an important case study because of the dramatic changes in places where people work, live, and play and the relationships among them. This case study sketches important elements to be considered in the development of metropolitan regions, which are expanding their international links. This article includes also a conceptual review of metropolitan spaces and networks, as well as an empirical assessment of the reorganization of metropolitan activities and networks in Lima, which have been driven by the ability of local actors to tap international capital and information

  15. Knowledge-building in adaptation management: concertación processes in transforming Lima water and climate change governance

    NARCIS (Netherlands)

    L. Miranda Sara; I. Baud

    2014-01-01

    Recently, three processes were used to analyze the consequences of plausible climate change scenarios for urban water governance in Lima. The first process, led by a German-financed research team, developed climate change scenarios using innovative tools. The second, Chance2Sustain, brought spatial

  16. Uma aldeia milenar da Ribeira Lima: a sacralização do seu espaço paroquial

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    Carlos A. Brochado de Almeida

    2014-01-01

    Full Text Available Cultural tourism does not live on physical realities alone; it also feeds on the so called immaterial culture, present on every corner, in each land, in each geographical space. Ribeira Lima is a privileged space to analyze such presuppositions, since here feasts and processions are blended with practices that were once considered pagan. The christian people borh seeks the Senhora (Our Lady da Agonia or Senhora da Peneda processions, and actively takes part in the Feiras Novas (New Fairs of Ponte de Lima, a reality where the sacred is so well combined with the secular. It this very people who hastens to ask for the protection of thaumaturges against plague, famine, war and bones`ailmets (Saint Sebastian, Saint Roque and Saint Amaro, also protecting itself with amulets and herbs against witches and sorceres, against evil eye and envious neighhours. It was this people who, early on, at the dawn of the II Millennium, has drawn the limits of its parishes, and took steps in order to protect them, as well as its homes and property, with the most diverse symbols, some christian, some originating in far more ancestral practies. Any parish od Ribeira Lima would serve as an example, but we chose Santa Leocádia de Geraz do Lima of the municipality of Viana do Castelo, because 2013 is the millennial of its foundation.

  17. La experiencia de la pobreza y su impacto en la organización popular de la ciudad de Lima

    Directory of Open Access Journals (Sweden)

    María Ángeles LÓPEZ JIMÉNEZ

    2009-11-01

    Full Text Available RESUMEN: Con base en una investigación empírica realizada con técnicas cualitativas, se analiza la formación de organizaciones y acción colectiva en distintos tipos de estratos sociales en la ciudad de Lima. La vivencia cotidiana de la pobreza, que también incide en la crisis de identidad masculina y en la autoestima femenina; la relación de la cultura tradicional comunitaria de origen indígena con la atomización de la sociedad urbana; y la vinculación de las organizaciones de la sociedad civil con el sistema político en el contexto histórico peruano, son los factores destacados para interpretar la situación actual y las potencialidades de la acción colectiva en Lima.ABSTRACT: Starting from an empirical research using qualitative methods, this article analyzes the formation of organizations and collective actions in different social stratums in the city of Lima. The dairy poverty which also affects the crisis of the masculine identity and female self-respect; the relationship between the traditional communitarian culture of indigenour origin and the atomization of the urban society; and the linkage between the organizations of the civil society and the political system in the Peruvian historical context. All of them are the most important factors in order to interpret the present and the potentialities of the collectiva action in Lima.

  18. Risk and Protective Factors for Physical and Emotional Intimate Partner Violence against Women in a Community of Lima, Peru

    Science.gov (United States)

    Mayorga, Magaly Noblega

    2012-01-01

    This article shows risk and protective factors for both physical and emotional intimate partner violence (IPV) against women. The study was carried out in a shanty town of Lima, Peru, which has a strong community organization. One hundred ninety-two women between 25 and 59 years old (M = 34.09, SD = 6.5) were interviewed; 44.3% had secondary…

  19. Lima bean leaves exposed to herbivore-induced conspecific plant volatiles attract herbivores in addition to carnivores

    NARCIS (Netherlands)

    Horiuchi, J.I.; Arimura, G.I.; Ozawa, R.; Shimoda, T.; Dicke, M.; Takabayashi, J.; Nishioka, T.

    2003-01-01

    We tested the response of the herbivorous mite Tetranychus urticae to uninfested lima bean leaves exposed to herbivore-induced conspecific plant volatiles by using a Y-tube olfactometer. First, we confirmed that exposed uninfested leaves next to infested leaves were more attractive to carnivorous mi

  20. Geographical Distribution of Wild Relatives of Mesoamerican Gene Pool of Lima Bean (Phaseolus lunatus L. in Mexico

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    Rubén H. Andueza-Noh

    2016-03-01

    Full Text Available The Mesoamerican gene pool of wild Lima bean (Phaseolus lunatus L., Fabaceae is an important source of genes for genetic improvement of the species. Is widely distributed from northern Mexico to northern Argentina. Reports in Mexico indicate that this gene pool is distributed from Sinaloa to Chiapas on the Pacific Coast and southern Tamaulipas to the Yucatan Peninsula on the Coast of Gulf of Mexico, as well as, in the Isthmus of Tehuantepec. However, despite the knowledge we have about the distribution of this gene pool, in Mexico there are still collecting gaps and unexplored regions. The objective of this study was to collect wild populations of Lima bean in Mexico to know its current distribution and establish management and conservation strategies. To do this, we collected within the natural distribution range of the Mesoamerican gene pool of Lima bean in Mexico, with the passport data was designed a geographical distribution map and assessed the conservation status of populations. Results indicated that wild populations of Lima bean have a wide geographical distribution localized mainly in tropical deciduous forest and semideciduous and elevations from zero to 2, 292 meters. In most wild population collected a low conservation status was observed, in consequence was proposed the development of strategies for in situ and ex situ conservation for wild populations with higher degree of erosion.

  1. Mixed-use spaces and mixed social responses: Popular resistance to a megaproject in Central Lima, Peru

    NARCIS (Netherlands)

    Strauch, L.; Takano, G.; Hordijk, M.

    2015-01-01

    Much in contrast to the city John Turner (1967) once described as progressive in terms of housing approaches for the urban poor, today in Lima, the capital of Peru, private enterprises have assumed unprecedented planning powers. The city that for a substantial part has been produced ‘from below’

  2. La experiencia de la pobreza y su impacto en la organización popular de la ciudad de Lima

    Directory of Open Access Journals (Sweden)

    María Ángeles LÓPEZ JIMÉNEZ

    2009-11-01

    Full Text Available RESUMEN: Con base en una investigación empírica realizada con técnicas cualitativas, se analiza la formación de organizaciones y acción colectiva en distintos tipos de estratos sociales en la ciudad de Lima. La vivencia cotidiana de la pobreza, que también incide en la crisis de identidad masculina y en la autoestima femenina; la relación de la cultura tradicional comunitaria de origen indígena con la atomización de la sociedad urbana; y la vinculación de las organizaciones de la sociedad civil con el sistema político en el contexto histórico peruano, son los factores destacados para interpretar la situación actual y las potencialidades de la acción colectiva en Lima.ABSTRACT: Starting from an empirical research using qualitative methods, this article analyzes the formation of organizations and collective actions in different social stratums in the city of Lima. The dairy poverty which also affects the crisis of the masculine identity and female self-respect; the relationship between the traditional communitarian culture of indigenour origin and the atomization of the urban society; and the linkage between the organizations of the civil society and the political system in the Peruvian historical context. All of them are the most important factors in order to interpret the present and the potentialities of the collectiva action in Lima.

  3. Mixed-use spaces and mixed social responses: Popular resistance to a megaproject in Central Lima, Peru

    NARCIS (Netherlands)

    Strauch, L.; Takano, G.; Hordijk, M.

    2015-01-01

    Much in contrast to the city John Turner (1967) once described as progressive in terms of housing approaches for the urban poor, today in Lima, the capital of Peru, private enterprises have assumed unprecedented planning powers. The city that for a substantial part has been produced ‘from below’ thr

  4. Invenção de Orfeu, colagem poética e onirismo em Jorge de Lima

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    LUCIANO MARCOS DIAS CAVALCANTI

    2015-08-01

    Full Text Available Este texto pretende examinar o recurso da montagem e do onirismo, procedimentos estéticos provenientes do surrealismo, utilizados por Jorge de Lima na confecção de suas fotomontagens e em Invenção de Orfeu.

  5. The Landsat Image Mosaic of Antarctica (LIMA): A Cutting-Edge Way for Students and Teachers to Learn about Antarctica

    Science.gov (United States)

    Campbell, Brian; Bindschadler, Robert

    2009-01-01

    By studying Antarctica via satellite and through ground-truthing research, we can learn where the ice is melting and why. The Landsat Image Mosaic of Antarctica (LIMA), a new and cutting-edge way for scientists, researchers, educators, students, and the public to look at Antarctica, supports this research and allows for unprecedented views of our…

  6. Domestication of small-seeded lima bean (Phaseolus lunatus L.) landraces in Mesoamerica: evidence from microsatellite markers.

    Science.gov (United States)

    Andueza-Noh, Rubén H; Martínez-Castillo, Jaime; Chacón-Sánchez, María I

    2015-12-01

    Previous studies have suggested that the Mesoamerican small-seeded landraces of Lima bean may have been domesticated more than once in Mesoamerica, once in central-western Mexico and another one in an area between Guatemala and Costa Rica. However, these findings were based on sequencing of only one locus from nuclear DNA, and additional confirmation was needed. Here we contribute with additional data on the origin of the Mesoamerican landraces and document the founder effect due to domestication. We characterized 62 domesticated, 87 wild and six weedy Lima bean accessions with ten microsatellite loci. Genetic relationships were analyzed using genetic distances and Bayesian clustering approaches. Domestication bottlenecks were documented using inter-population comparisons and M ratios. The results support at least one domestication event in the area of distribution of gene pool MI in central-western Mexico and also show that some landraces are genetically related to wild accessions of gene pool MII. Also, our data support founder effects due to domestication in Mesoamerican Lima bean landraces. Although we could not establish more specifically the place of origin of the Mesoamerican Lima bean landraces, our results show that these are not a genetically homogeneous group, a finding that may be compatible with a scenario of more than one domestication event accompanied by gene flow. The complex genetic makeup of landraces that we found indicates that a more comprehensive geographic and genomic sampling is needed in order to establish how domestication processes and gene flow have shaped the current genetic structure of landraces.

  7. A profile of sexually active male adolescent high school students in Lima, Peru Perfil de los adolescentes varones sexualmente activos en colegios secundarios de Lima, Peru

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    Jesús L. Chirinos

    2000-09-01

    Full Text Available To document knowledge and attitudes regarding sexuality and sexual practices of male adolescent high school students in Lima, Peru, a self-administered, anonymous survey was completed by 991 male adolescents aged 12-19 as part of a School-Based Sex Education Intervention model. Questions concerned sociodemographic information; family characteristics; personal activities; knowledge and attitudes regarding sexuality; sexual experience; and contraceptive use. Knowledge related to sexuality was limited. Males tended to mainly discuss sexuality with their male peers (49.8%. Attitudes towards sexual activity and condom use were largely positive, although some males expressed ambivalent feelings towards the latter. Of the sample, 43% had ever had sex; age at first sexual intercourse was 13 years. While 88% of the sample would use condoms, 74% also gave reasons for not using them. Sexual activity was related to age, ever having repeated a grade, living with only one parent or in a mixed family, activities such as going to parties, use of alcohol, tobacco, and drugs, and viewing pornographic videos or magazines. Many male adolescents were at risk of causing an unintended pregnancy or acquiring an STD.Con el objetivo de documentar el nivel de conocimiento y las actitudes con respecto a sexualidad y las prácticas sexuales de los adolescentes varones de colegios secundarios en Lima, Peru, 991 estudiantes varones, entre los 12-19 años, completaron una encuesta autoaplicable y anónima dentro de un Programa de Prevención de Comportamientos Sexuales de Riesgo. Datos de la encuesta: sociodemográficos de la familia; de actividades personales; de conocimiento y actitudes con respecto a la sexualidad; de experiencia sexual y uso de anticonceptivos. El conocimiento sobre sexualidad es limitado. Los varones discuten principalmente sobre sexualidad con sus pares varones (49,8%. Las actitudes hacia la actividad sexual y el uso de condones fueron positivas, pero

  8. Creencias sobre los derechos humanos en estudiantes universitarios de la ciudad de Lima (Beliefs about human rights in college students in Lima

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    Gissela Vilchez Choquehuayta

    2014-06-01

    Full Text Available RESUMEN: En el presente estudio se planteó como objetivo explorar el nivel de información y las creencias sobre los derechos humanos en dos grupos de estudiantes universitarios de una universidad privada de Lima. Un grupo asistió a un curso de Ética y Ciudadanía en el que se abordó temas relativos a los derechos humanos y el otro grupo no. Mediante un cuestionario y entrevistas se exploró la información y creencias de los estudiantes sobre la utilidad e importancia de los derechos humanos, el respeto y las violaciones a los mismos y su percepción sobre el curso de Ética y Ciudadanía. La investigación muestra una clara diferencia entre los grupos con respecto a la utilidad e importancia que le atribuyen a los derechos humanos dentro de la formación profesional. Sin embargo, se identificó también, que ambos grupos presentan dificultades en el nivel de información y ciertos prejuicios acerca del papel que la educación, en derechos humanos, tiene para su desarrollo como profesionales y ciudadanos. El artículo aborda las implicancias de estos hallazgos para el cambio de creencias y la educación en este tema. ABSTRACT: The purpose of this study was to explore the level of information and beliefs about human rights among two groups of college students of a private university in Lima city. One group took the course of «Ethics and Citizenship», here they spoke about human right issues, while the other did not. Through interviews and a questionnaire, students’ beliefs were explored in three areas: a beliefs about thevalue and importance of human rights; b beliefs about respect for human rights and human rights violations; c perception of the course «Ethics and Citizenship». The research shows a clear difference between the groups in terms of the importance andusefulness attributed to human rights as part of their professional training. However, it was identified that in both groups there are some problems at the level of

  9. Estudio cap de dengue en los distritos de Cercado de Lima, La Victoria y San Luis. Lima, Perú. junio 2004

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    Ronal Jamanca S

    2005-03-01

    Full Text Available Objetivos: Determinar el nivel de conocimientos, actitudes y prácticas con respecto al dengue en la población de tres distritos de Lima, Perú: Lima Cercado, La Victoria y San Luis. Materiales y Métodos: Estudio descriptivo, transversal y prospectivo, basado en la población, el tamaño muestral calculado para un índice aédico de 1%, se usó un muestreo bietápico. Se usó una entrevista estructurada de 17 preguntas cerradas, aplicada por personal de saneamiento ambiental o promotores de salud capacitados, a la primera persona adulta que atendía en la vivienda seleccionada. Los datos fueron ingresados en Epi Info v.6 y analizados en SPSS v.11. Resultados: Se entrevistó a 5381 pobladores, el promedio de edad de lo participantes fue de 42±16 años, las dos terceras partes fueron mujeres y 76% tenían un nivel de educación secundaria o superior. El 69,2% manifestó conocer el dengue, sin embargo sólo 65,4% de los que declaraban conocerlo tenían un conocimiento aceptable. 121 entrevistados (2,1% refirieron picaduras matutinas en los miembros inferiores, sospechosas de Aedes aegypti. El 55,1% de los entrevistados practicaban almacenamiento de agua en sus viviendas, siendo La Victoria el lugar más frecuente con esta práctica (65,8%. En comparación con los que hicieron estudios escolares en el norte del país, los que estudiaron en la sierra tuvieron significativamente menor conocimiento del dengue (OR= 2,21; IC 95%: 1,72-2,83. Conclusiones: Es necesario implementar actividades intersectoriales de promoción, prevención y control del dengue, especialmente en la jurisdicción de la Victoria y en aquellas personas provenientes de la sierra; así como, fortalecer la vigilancia entomológica, sobretodo en aquellas viviendas donde se reporta picaduras sospechosas de Aedes aegypti.

  10. Multidetector CT angiography of renal vasculature: normal anatomy and variants

    Energy Technology Data Exchange (ETDEWEB)

    Tuerkvatan, Aysel; Oezdemir, Mustafa; Cumhur, Turhan; Oelcer, Tuelay [Tuerkiye Yueksek ihtisas Hospital, Department of Radiology, Sihhiye, Ankara (Turkey)

    2009-01-15

    Knowledge of the variations in renal vascular anatomy is important before laparoscopic donor or partial nephrectomy and vascular reconstruction for renal artery stenosis or abdominal aortic aneurysm. Recently, multidetector computed tomographic (MDCT) angiography has become a principal imaging investigation for assessment of the renal vasculature and has challenged the role of conventional angiography. It is an excellent imaging technique because it is a fast and non-invasive tool that provides highly accurate and detailed evaluation of normal renal vascular anatomy and variants. The number, size and course of the renal arteries and veins are easily identified by MDCT angiography. The purpose of this pictorial essay is to illustrate MDCT angiographic appearance of normal anatomy and common variants of the renal vasculature. (orig.)

  11. [Clinical study with angiography system using a flat panel detecter].

    Science.gov (United States)

    Ichida, Takao; Okusako, Kenji; Yokoyama, Kouji; Shougaki, Masachika; Ogawa, Takayoshi; Kawahata, Hideki; Nasu, Takehisa; Hosogai, Minoru; Okuyama, Kazuo; Hatagawa, Masakatsu

    2004-08-01

    We have been using an X-ray angiography system that incorporates a flat panel detector (FPD) since December 2001. This system is equipped with the scintillator-type FPD PaxScan 4030A from Varian Medical Systems, and for objective comparison of the image intensifier (I.I.) and FPD, the system is constructed so that these detectors can be used alternatively. Using this system and other X-ray angiography systems, visual studies have been conducted on the digital subtraction angiography (DSA) images acquired by FPD and I.I. We have found from the clinical images that the FPD is superior to the I.I. in depiction of fine blood vessels as well as of physical characteristics. Fluoroscopy images acquired by the FPD were not entirely satisfactory, however the improvement made in its performance now permits equal use of the FPD and I.I. systems.

  12. [Vascular assessment in stroke codes: role of computed tomography angiography].

    Science.gov (United States)

    Mendigaña Ramos, M; Cabada Giadas, T

    2015-01-01

    Advances in imaging studies for acute ischemic stroke are largely due to the development of new efficacious treatments carried out in the acute phase. Together with computed tomography (CT) perfusion studies, CT angiography facilitates the selection of patients who are likely to benefit from appropriate early treatment. CT angiography plays an important role in the workup for acute ischemic stroke because it makes it possible to confirm vascular occlusion, assess the collateral circulation, and obtain an arterial map that is very useful for planning endovascular treatment. In this review about CT angiography, we discuss the main technical characteristics, emphasizing the usefulness of the technique in making the right diagnosis and improving treatment strategies. Copyright © 2012 SERAM. Published by Elsevier España, S.L.U. All rights reserved.

  13. Coronary CT angiography-derived quantitative markers for predicting in-stent restenosis

    NARCIS (Netherlands)

    Tesche, Christian; De Cecco, Carlo N.; Vliegenthart, Rozemarijn; Duguay, Taylor M.; Stubenrauch, Andrew C.; Rosenberg, Russell D.; Varga-Szemes, Akos; Bayer, Richard R.; Yang, Junjie; Ebersberger, Ullrich; Baguet, Moritz; Jochheim, David; Hoffmann, Ellen; Steinberg, Daniel H.; Chiaramida, Salvatore A.; Schoepf, U. Joseph

    2016-01-01

    Objective: To evaluate quantitative markers derived from coronary CT angiography (coronary CTA) performed prior to percutaneous coronary intervention (PCI) with stent placement for predicting in-stent restenosis (ISR) as defined by quantitative coronary angiography (QCA). Materials and methods: We

  14. Cost-effectiveness of computed tomography coronary angiography versus conventional invasive coronary angiography.

    Science.gov (United States)

    Darlington, Meryl; Gueret, Pascal; Laissy, Jean-Pierre; Pierucci, Antoine Filipovic; Maoulida, Hassani; Quelen, Céline; Niarra, Ralph; Chatellier, Gilles; Durand-Zaleski, Isabelle

    2015-07-01

    To determine the costs and cost-effectiveness of a diagnostic strategy including computed tomography coronary angiography (CTCA) in comparison with invasive conventional coronary angiography (CA) for the detection of significant coronary artery disease from the point of view of the healthcare provider. The average cost per CTCA was determined via a micro-costing method in four French hospitals, and the cost of CA was taken from the 2011 French National Cost Study that collects data at the patient level from a sample of 51 public or not-for-profit hospitals. The average cost of CTCA was estimated to be 180 (95 % CI 162-206) based on the use of a 64-slice CT scanner active for 10 h per day. The average cost of CA was estimated to be 1,378 (95 % CI 1,126-1,670). The incremental cost-effectiveness ratio of CA for all patients over a strategy including CTCA triage in the intermediate risk group, no imaging test in the low risk group, and CA in the high risk group, was estimated to be 6,380 (95 % CI 4,714-8,965) for each additional correctly classified patient. This strategy correctly classifies 95.3 % (95 % CI 94.4-96.2) of all patients in the population studied. A strategy of CTCA triage in the intermediate-risk group, no imaging test in the low-risk group, and CA in the high-risk group, has good diagnostic accuracy and could significantly cut costs. Medium-term and long-term outcomes need to be evaluated in patients with coronary stenosis potentially misclassified by CTCA due to false negative examinations.

  15. Diabetic Macular Ischemia Diagnosis: Comparison between Optical Coherence Tomography Angiography and Fluorescein Angiography

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    Jose Mauricio Botto de Barros Garcia

    2016-01-01

    Full Text Available Purpose. To compare fluorescein angiography (FA and optical coherence tomography angiography (OCTA images of foveal avascular zone (FAZ in patients with diabetic retinopathy (DR with and without diabetic macular ischemia (DMI. Methods. The Wilcoxon signed-rank test was used to compare area measurements and p values of <0.05 were considered statistically significant. FA and OCTA images were independently graded by 2 observers that reached agreement regarding quantitative DMI according established protocols. The ischemic area was divided into “large” macular ischemia (superior to 0.32 mm2 and “small” (inferior to 0.32 mm2 groups. Quantitative analyses of the FAZ were performed using custom software. Results. Thirty-four eyes from 34 diabetic patients were enrolled. Subjects with DMI presented a mean area on FA and OCTA of 0.68 ± 0.53 mm2 and 0.58 ± 0.35 mm2, respectively (p=0.1374. Patients without DMI presented a mean area on FA and OCTA of 0.19 ± 0.67 mm2 and 0.20 ± 0.79 mm2, respectively (p=0.9594. The ICC for the FAZ measurements between the 2 observers on FA and OCTA was 0.96 and 0.92, respectively. Conclusion. OCTA represents a novel technique for the diagnosis of DMI and it may become an alternative to FA for this purpose.

  16. CT coronary angiography versus conventional invasive coronary angiography. The view of the referring physician

    Energy Technology Data Exchange (ETDEWEB)

    Maurer, Martin H. [Charite - Universitaetsmedizin Berlin (Germany). Dept. of Radiology; Universitaetsspital Bern (Switzerland). Dept. fuer Diagnostische, Interventionelle und Paediatrische Radiologie; Zimmermann, E.; Hamm, B. [Charite - Universitaetsmedizin Berlin (Germany). Dept. of Radiology; Dewey, M.

    2014-12-15

    Assessment of experience gained by local referring physicians with the procedure of coronary computed tomographic angiography (CCTA) in the everyday clinical routine. A 25-item questionnaire was sent to 179 physicians, who together had referred a total of 1986 patients for CCTA. They were asked about their experience to date with CCTA, the indications for coronary imaging, and their practice in referring patients for noninvasive CCTA or invasive catheter angiography. 53 questionnaires (30%) were assessable, corresponding to more than 72% of the patients referred. Of the referring physicians who responded, 94% saw a concrete advantage of CCTA in the treatment of patients, whereby 87% were 'satisfied' or 'very satisfied' with the reporting. For excluding coronary heart disease (CHD) where there was a low pre-test probability of disease, the physicians considered CCTA to be superior to conventional coronary diagnosis (4.2 on a scale of 1-5) and vice versa for acute coronary syndrome (1.6 of 5). The main reasons for unsuitability of CCTA for CT diagnosis were claustrophobia and the absence of a sinus rhythm. The level of exposure to radiation in CCTA was estimated correctly by only 42% of the referring physicians. 90% of the physicians reported that their patients evaluated their coronary CT overall as 'positive' or 'neutral', while 87% of the physicians whose patients had undergone both procedures reported that the patients had experienced CCTA as the less disagreeable of the two. CCTA is accepted by the referring physicians as an alternative imaging procedure for the exclusion of CHD and received a predominantly positive assessment from both the referring physicians and the patients.

  17. Optimization of Ecg Gating in Quantitative Femoral Angiography

    Energy Technology Data Exchange (ETDEWEB)

    Nilsson, S.; Berglund, I.; Erikson, U. [Univ. Hospital, Uppsala (Sweden). Dept. of Oncology, Radiology and Clinical Immunology; Johansson, J.; Walldius, G. [Karolinska Hospital, Stockholm (Sweden). King Gustav V Research Inst.

    2003-09-01

    Purpose: To determine which phase of the heart cycle would yield the highest reproducibility in measuring atherosclerosis-related variables such as arterial lumen volume and edge roughness. Material and Methods: 35 patients with hypercholesterolemia underwent select ive femoral angiography, repeated four times at 10-min intervals. The angiographies were performed with Ecg-gated exposures. In angiographies 1 and 2 the delay from R-wave maximum to each exposure was 0.1 s, in angiographies 3 and 4 the delay was 0.1, 0.3, 0.5 or 0.7 s or the exposures were performed 1/s without Ecg gating. Arterial lumen volume and edge roughness were measured in a 20-cm segment of the superficial femoral artery using a computer-based densitometric method. Measurement reproducibility was determined by comparing angiographies 1-2 and angiographies 3-4. Results: When measuring arterial lumen volume and edge roughness of a 20-cm segment of the femoral artery, reproducibility was not dependent on Ecg gating. In measuring single arterial diameters and cross-sectional areas, the reproducibility was better when exposures were made 0.1 s after the R-wave maximum than when using other settings of the Ecg gating device or without Ecg gating. Conclusion: The influence of pulsatile flow upon quantitative measurement in femoral angiograms seems to be the smallest possible in early systole, as can be demonstrated when measuring single diameters and cross-sectional areas. In variables based on integration over longer segments, measurement reproducibility seems to be independent of phase.

  18. Pseudoaneurysm after pancreatoduodenectomy: diagnosis and embolization on angiography

    Energy Technology Data Exchange (ETDEWEB)

    Jeong, Jun Yong [Kangwon National University College of Medicine, Chuncheon (Korea, Republic of); Lee, Sang Hyun; Kim, Sam Soo; Han, Heon; Chung, Hye Won [Seoul City Boramae Hospital, Seoul (Korea, Republic of); Youn, Byung Jae; Han, Joon Koo; Choi, Byung Ihn; Chung, Jin Wook; Park, Jae Hyung [Seoul National University College of Medicine, Seoul (Korea, Republic of)

    2002-08-01

    To evaluate the efficacy of angiography in the diagnosis and treatment of pseudoaneurysm manifesting arterial hemorrhage as a significant complication following pancreatoduodenectomy. For 51 months, of a total of 298 patients who had undergone pancreatoduodenectomy, 19 patients (6.4%) developed clinically significant hemorrhage and nine patients proved to have a pseudoaneurysm of angiography. These nine patients (3.0%) were managed by transcatheter arterial embolization. We analyzed clinical feature, angiography findings and hemostatic effect of embolization retrospectively. In nine patients (3.0%), pseudoaneurysm was diagnosed on angiography (common hepatic artery in four, gastroduodenal artery in three, proper hepatic artery in one, and left gastroepoploic artery in on patient). The size ranged from 0.3 cm to 6.5 cm (mean 1.9 cm). And extravasation was noted in five patients (55.6%). The remained ten patients showed no evidence of bleeding on angiography. Those who manifested as early bleeding (within two weeks) or delayed bleeding ( later than two weeks) were five and four patients respectively. Before the onset of major bleeding, among the nine pseudoaneurysm patients, seven patients (77.8%) had experienced percutaneous drainage due to intra-abdominal fluid collection with or without abscess resulting from anastomotic leak, and all nine patients had preliminary minor bleeding. The angiogram demonstrated an exact site of bleeding as a pseucoaneurysm followed by transcatheter arterial embolization (microcoil in eight patients, gelfoam in one) and achieved complete hemostasis yielding a success rate of 100%. Overall, no patients experienced complications related directly to the transcatheter arterial embolization technique. During the follow-up period (72-1, 336days, mean 640), no recurrence of bleeding was note. Although pseudoaneurysm is a rare complication, it is important as a cause of hemorrhage after pancreatoduodenectomy. Angiography followed by

  19. Evaluation of magnetic resonance angiography in detection of gastric varices

    Energy Technology Data Exchange (ETDEWEB)

    Sato, Takahiro; Yamazaki, Katsu; Toyota, Jouji; Karino, Yoshiyasu; Ohmura, Takumi; Suga, Toshihiro [Sapporo Kosei General Hospital (Japan)

    1999-06-01

    We evaluated the detection of gastric varices, inflowing blood vessels to gastric varices, and outflowing blood vessels from gastric varices via magnetic resonance (MR) angiography in 31 patients with gastric varices. Twenty-four patients had F{sub 2} type varices and 7 had F{sub 3} type, classified according to the Japanese Research Society for Portal Hypertension. Seventeen patients had cardiofornical varices, and 14 had fundal varices. All patients were examined with an MR system operating at 1.5 T. MR angiography was performed using the two-dimensional time-of-flight method. With MR angiography, the imaging of gastric varices was clearly delineated in 28 of the 31 patients (90.3%). From the images of MR angiography, flow direction itself cannot be determined. The outflowing blood vessels of gastric varices were reported to be the gastro-renal shunt and the subphrenic vein, and angiographic findings have shown the inflowing blood vessels to be the left gastric vein (LGV), the short gastric vein (SGV), and the posterior gastric vein (PGV). In 25 of the 31 patients (80.7%), the outflowing blood vessels from gastric varices were detected (gastro-renal shunt in 24; subphrenic vein in 1). MR angiography provided clear images of the inflowing blood vessels to gastric varices in 18 of the 31 patients (58.1%). These inflowing vessels were categorized as SGV in 7 patients, LGV in 5, LGV and SGV in 4, and LGV and PGV in 2. We suggest that MR angiography be used as a routine method for detecting and diagnosing collateral veins in patients with gastric varices. (author)

  20. Digital subtraction angiography in head and neck radiology

    Energy Technology Data Exchange (ETDEWEB)

    Carmody, R.F.; Seeger, J.F.; Smith, R.L.; Horsley, W.W.; Miller, R.W.

    1984-07-01

    Intravenous digital subtraction angiography (IVDSA) was used to evaluate 44 patients with suspected otolaryngologic abnormalities. Sixteen had IVDSA for pulsatile tinnitus or suspected glomus tumor of the petrous bone. Nine patients were evaluated because of pulsatile neck masses, and 12 others had suspected tumors of the neck, face, and paranasal sinuses. Seven had IVDSA following head and neck trauma. The technique of examination is described. The current indications of IVDSA in head and neck radiology are discussed. It is concluded that IVDSA is a suitable substitute for conventional angiography for many otolaryngologic conditions and, because of its safety, can be used more liberally.

  1. A comparison of iopamidol and iohexol in cerebral angiography.

    Science.gov (United States)

    Pelz, D M; Fox, A J; Viñuela, F; Lylyk, P

    1988-01-01

    Iopamidol and iohexol, the new nonionic low-osmolality contrast agents, have both been shown to be safe, effective, and better tolerated than conventional ionic agents for cerebral angiography. In this randomized, double-blind study involving 40 patients, these two agents were compared for adverse effects, radiographic quality, and patient tolerance. No significant differences were observed in 220 injections. Because we found iopamidol and iohexol to be equally safe and effective for cerebral angiography, the choice of which contrast agent to use should be based on other considerations.

  2. Technical innovation: Multidimensional computerized software enabled subtraction computed tomographic angiography.

    Science.gov (United States)

    Bhatia, Mona; Rosset, Antoine; Platon, Alexandra; Didier, Dominique; Becker, Christoph D; Poletti, Pierre-Alexandre

    2010-01-01

    Computed tomographic angiography (CTA) is a frequent noninvasive alternative to digital subtraction angiography. We previously reported the development of a new subtraction software to overcome limitations of adjacent bone and calcification in CT angiographic subtraction. Our aim was to further develop and improve this fast and automated computerized software, universally available for free use and compatible with most CT scanners, thus enabling better delineation of vascular structures, artifact reduction, and shorter reading times with potential clinical benefits. This computer-based free software will be available as an open source in the next release of OsiriX at the Web site http://www.osirix-viewer.com.

  3. An outcome analysis of intraoperative angiography for postmastectomy breast reconstruction.

    Science.gov (United States)

    Duggal, Claire S; Madni, Tarik; Losken, Albert

    2014-01-01

    Intraoperative angiography is a useful tool for predicting both tissue perfusion during postmastectomy breast reconstruction and mastectomy flap and free flap survival. The authors determine whether the routine use of laser-assisted indocyanine green (ICG) fluorescence angiography (SPY Imaging; LifeCell Corp, Branchburg, New Jersey) in breast reconstruction decreases the incidence of complications and whether this new technology is cost-effective. A retrospective review was conducted for 184 consecutive patients who underwent breast reconstruction using intraoperative ICG angiography from April 2009 to December 2011 at Emory University (Atlanta, Georgia). The incidence of complications (including mastectomy skin necrosis, flap necrosis, fat necrosis, unexpected reoperations, infections, and dehiscence) among these patients was compared with data for 184 consecutive patients who underwent breast reconstruction at Emory University from October 2007 to April 2009, prior to the introduction of ICG angiography. Patient data recorded included age, body mass index, smoking status, and history of preoperative radiation as well as the timing and type of reconstruction, along with complications. The cost of unexpected reoperations for perfusion-related complications and associated hospital stays was calculated. The 184 patients who underwent procedures using ICG angiography imaging had a lower incidence of mastectomy skin necrosis (13% vs 23.4%; P = .010) and unexpected reoperations for perfusion-related complications (5.9% vs 14.1%, P = .009). The 184 patients who underwent procedures without ICG angiography had a higher mean degree of severity of mastectomy skin necrosis (2.22 vs 1.83 on a scale of 1-3; P = .065). There were no significant differences in the degree of flap necrosis, nipple necrosis, fat necrosis, dehiscence, infection, implant exposure, flap loss, seroma, hematoma, or the number of overall complications between the 2 groups. The use of ICG angiography

  4. Accuracy of multidetector row computed tomography for the diagnosis of acute bowel ischemia in a non-selected study population

    Energy Technology Data Exchange (ETDEWEB)

    Wiesner, Walter [University Hospital Basel, Institute of Diagnostic Radiology, Basel (Switzerland); Clinic Stephanshorn, Medical Radiology Center, St. Gallen (Switzerland); Hauser, Andreas; Steinbrich, Wolfgang [University Hospital Basel, Institute of Diagnostic Radiology, Basel (Switzerland)

    2004-12-01

    The diagnostic accuracy of multidetector row computed tomography for the prospective diagnosis of acute bowel ischemia in the daily clinical routine was analyzed. Two hundred ninety-one consecutive patients with an acute or subacute abdomen, examined by MDCT over a time period of 5 months, were included in the study. All original CT diagnoses made during the daily routine by radiological generalists were compared to the final diagnoses made by using all available medical information from endoscopies, surgical interventions, autopsies and follow-up. Finally, all CT examinations of patients with an initial CT diagnosis or a final diagnosis of bowel ischemia were reread by a radiologist specialized in abdominal imaging in order to analyze the CT findings and the reasons for initially false negative or false positive CT readings. Twenty-four patients out of 291 (8.2%) had acute bowel ischemia. The age of affected patients ranged from 50 to 94 years (mean age: 75.7 years). Eleven patients were male, and 13 female. Reasons for acute bowel ischemia were: arterio-occlusive (n=11), non-occlusive (n=5), strangulation (n=2), over-distension (n=3) and radiation (n=3). The prospective sensitivity, specificity, PPV and NPV of MDCT for the diagnosis of acute bowel ischemia in the daily routine were 79.17, 98.51, 90.48 and 98.15%. MDCT reaches a similarly high sensitivity in diagnosing acute bowel as angiography. Furthermore, it has the advantage of being helpful in most of its clinical differential diagnoses and of being less invasive with the consecutive possibility of being used earlier in the diagnostic process with all the resulting positive effects on the patients prognosis. Therefore, nowadays MDCT should probably be used as the first step imaging modality of choice in patients with suspected acute bowel ischemia. (orig.)

  5. Usefulness of CT angiography in diagnosing acute gastrointestinal bleeding:A meta-analysis

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    AIM: To analyze the accuracy of computed tomography (CT) angiography in the diagnosis of acute gastrointestinal (GI) bleeding. METHODS: The MEDLINE, EMBASE, Cancerlit, Cochrane Library database, Sciencedirect, Springerlink and Scopus, from January 1995 to December 2009, were searched for studies evaluating the accuracy of CT angiography in diagnosing acute GI bleeding. Studies were included if the ycompared CT angiography to a reference standard of upper GI endoscopy, colonoscopy, angiography or surgery in ...

  6. Usefulness of helical CT angiography for diagnosis of anomalous origin of coronary artery. Comparison with coronary angiography

    Energy Technology Data Exchange (ETDEWEB)

    Shinozaki, Hitoshi; Kondo, Takeshi; Ishikawa, Emiko [Fujita Health Univ., Toyoake, Aichi (Japan)] [and others

    1998-07-01

    Usefulness of helical CT angiography with reconstruction image of diastolic phase synchronized with electrocardiogram was compared with that of coronary angiography for diagnosis of anomalous origin of coronary artery. Patients were 2 males and 3 females, and average age was 66.4 year. Three cardiologists judged images and did not confirmed the origin and direction of coronary artery in 60% of cases. Helical CT was carried out with heartbeat <60/min by oral administration of propranolol (10-20 mg) one hour before the test. Half image was reconstructed by using data of diastolic phase which is 600 msec back from R-wave of an electrocardiogram. Multiplanar reconstruction (MPR) image and 3D image were provided. Two radiologists judged these images. A judgment was completed with 4 cases among 5 cases, and two judgments agreed well. For diagnosis of anomalous origin of coronary artery, helical CT had good accuracy and was more sensitive than coronary angiography. (K.H.)

  7. Measurements of the radon-222 concentration in residences of Lima - Peru; Mediciones de la concentracion de radon 222 en residencias de Lima - Peru

    Energy Technology Data Exchange (ETDEWEB)

    Pereyra, P.; Lopez, M. E.; Perez, B., E-mail: ppereyr@pucp.edu.pe [Pontificia Universidad Catolica del Peru, Seccion Fisica, Av. Universitaria 1801, Lima (Peru)

    2014-08-15

    The measurement of the Radon-222 levels was realized in the first semester of 2013 in residences corresponding to 16 districts of the metropolitan area of Lima, including to the zones North, Center and South of the city, during one period of 3 to 6 months in continuous form, with measurement periods of 1 to 2 months. The houses where the measurements were made were selected considering diverse variables as antiquity, construction materials, coatings, soil type, occupational use of the monitored rooms, etc. The measurements were realized in basements, first and second floor of the residences. For the Radon-222 measurements passive detectors of cellulose nitrate (Lr-115) were used. The procedure of data collection, dosimeters reading and the measurement results are shown in this work; this monitoring is the first one that is carried out in this city. The results are only indicators of the present radon rate, by the detectors type not is possible to discriminate the presence of the Radon-222 descendants. (Author)

  8. ¿Del dicho al hecho hay mucho trecho? El delito de blasfemia en los tribunales de Cartagena y Lima Lima 1570-1700

    Directory of Open Access Journals (Sweden)

    Karla Luzmer Escobar Hernández

    2009-01-01

    Full Text Available El presente artículo hace un análisis comparativo sobre los delitos verbales -en particular los casos de blasfemias- procesados por los tribunales inquisitoriales de Lima y Carta-gena en el siglo XVII. El propósito que persigue este escrito es indagar, paralelamen- te, sobre los usos de la blasfemia en dos esferas. Por un lado, el delito en cuanto expresión de una regulación institucional sobre el uso de lo verbal, como índice del apropiamiento de la doctrina católica en los habitantes de los dominios españoles; por el otro, como una herramienta utilizada por los individuos en el ámbito de la vida cotidiana, a modo de construir ciertos espacios de reclamo y libertad, siempre en diálogo con un marco discursivo común delineado a partir de los parámetros provistos por el catolicismo imperial.

  9. Multimodality evaluation of dural arteriovenous fistula with CT angiography, MR with arterial spin labeling, and digital subtraction angiography: case report.

    Science.gov (United States)

    Alexander, Matthew; McTaggart, Ryan; Santarelli, Justin; Fischbein, Nancy; Marks, Michael; Zaharchuk, Greg; Do, Huy

    2014-01-01

    Dural arteriovenous fistulae (DAVF) are cerebrovascular lesions with pathologic shunting into the venous system from arterial feeders. Digital subtraction angiography (DSA) has long been considered the gold standard for diagnosis, but advances in noninvasive imaging techniques now play a role in the diagnosis of these complex lesions. Herein, we describe the case of a patient with right-side pulsatile tinnitus and DAVF diagnosed using computed tomography angiography, magnetic resonance with arterial spin labeling, and DSA. Implications for imaging analysis of DAVFs and further research are discussed.

  10. Characterisation of PDO olive oil Chianti Classico by non-selective (UV-visible, NIR and MIR spectroscopy) and selective (fatty acid composition) analytical techniques

    Energy Technology Data Exchange (ETDEWEB)

    Casale, M., E-mail: monica@dictfa.unige.it [Universita degli Studi di Genova, Department of Chemistry and Food and Pharmaceutical Technologies, Via Brigata Salerno 13, I-16147, Genoa (Italy); Oliveri, P.; Casolino, C. [Universita degli Studi di Genova, Department of Chemistry and Food and Pharmaceutical Technologies, Via Brigata Salerno 13, I-16147, Genoa (Italy); Sinelli, N. [Universita degli Studi di Milano, Department of Food Science and Technology, Via Celoria, 2 - I-20133 Milan (Italy); Zunin, P.; Armanino, C.; Forina, M.; Lanteri, S. [Universita degli Studi di Genova, Department of Chemistry and Food and Pharmaceutical Technologies, Via Brigata Salerno 13, I-16147, Genoa (Italy)

    2012-01-27

    Highlights: Black-Right-Pointing-Pointer Characterisation of the Italian PDO extra virgin olive oil Chianti Classico. Black-Right-Pointing-Pointer Comparison between non-selective (UV-vis, NIR and MIR spectroscopy) and selective (fatty acid composition) analytical techniques. Black-Right-Pointing-Pointer Synergy among spectroscopic techniques, by the fusion of the respective spectra. Black-Right-Pointing-Pointer Prediction of the content of oleic and linoleic acids in the olive oils. - Abstract: An authentication study of the Italian PDO (protected designation of origin) extra virgin olive oil Chianti Classico was performed; UV-visible (UV-vis), Near-Infrared (NIR) and Mid-Infrared (MIR) spectroscopies were applied to a set of samples representative of the whole Chianti Classico production area. The non-selective signals (fingerprints) provided by the three spectroscopic techniques were utilised both individually and jointly, after fusion of the respective profile vectors, in order to build a model for the Chianti Classico PDO olive oil. Moreover, these results were compared with those obtained by the gas chromatographic determination of the fatty acids composition. In order to characterise the olive oils produced in the Chianti Classico PDO area, UNEQ (unequal class models) and SIMCA (soft independent modelling of class analogy) were employed both on the MIR, NIR and UV-vis spectra, individually and jointly, and on the fatty acid composition. Finally, PLS (partial least square) regression was applied on the UV-vis, NIR and MIR spectra, in order to predict the content of oleic and linoleic acids in the extra virgin olive oils. UNEQ, SIMCA and PLS were performed after selection of the relevant predictors, in order to increase the efficiency of both classification and regression models. The non-selective information obtained from UV-vis, NIR and MIR spectroscopy allowed to build reliable models for checking the authenticity of the Italian PDO extra virgin olive oil

  11. [Cost-effectiveness analysis of celecoxib versus non-selective non-steroidal anti-inflammatory drug therapy for the treatment of osteoarthritis in Spain: A current perspective].

    Science.gov (United States)

    De Lossada, A; Oteo-Álvaro, Á; Giménez, S; Oyagüez, I; Rejas, J

    2016-01-01

    To assess the cost-effectiveness of celecoxib and non-selective non-steroidal anti-inflammatory drugs for the treatment of osteoarthritis in clinical practice in Spain. A decision-tree model using distribution, doses, treatment duration and incidence of GI and CV events observed in the pragmatic PROBE-designed «GI-Reasons» trial was used for cost-effectiveness. Effectiveness was expressed in terms of event averted and quality-adjusted life-years (QALY) gained. QALY were calculated based on utility decrement in case of any adverse events reported in GI-Reasons trial. The National Health System perspective in Spain was applied; cost calculations included current prices of drugs plus cost of adverse events occurred. The analysis was expressed as an incremental cost-effectiveness ratio per QALY gained and per event averted. One-way and probabilistic analyses were performed. Compared with non-selective non-steroidal anti-inflammatory drugs, at current prices, celecoxib treatment had higher overall treatment costs €201 and €157, respectively. However, celecoxib was associated with a slight increase in QALY gain and significantly lower incidence of gastrointestinal events (pcost-effectiveness ratio of €13,286 per QALY gained and €4,471 per event averted. Sensitivity analyses were robust, and confirmed the results of the base case. Celecoxib at current price may be considered as a cost-effective alternative vs. non-selective non-steroidal anti-inflammatory drugs in the treatment of osteoarthritis in daily practice in the Spanish NHS. Copyright © 2015 Sociedad Española de Médicos de Atención Primaria (SEMERGEN). Publicado por Elsevier España, S.L.U. All rights reserved.

  12. Role of nonselective cation channels as Ca2+ entry pathway in endothelin-1-induced contraction and their suppression by nitric oxide.

    Science.gov (United States)

    Zhang, X F; Komuro, T; Miwa, S; Minowa, T; Iwamuro, Y; Okamoto, Y; Ninomiya, H; Sawamura, T; Masaki, T

    1998-07-10

    The present study was carried out to clarify the role of nonselective cation channels as a Ca2+ entry pathway in the contraction and the increase in [Ca2+]i induced by endothelin- in endothelium-denuded rat thoracic aorta rings, and their suppression by nitric oxide (NO). In Ca2+-free medium, the endothelin-1-induced contraction was suppressed to about 20% of control values, although the increase in [Ca2+]i became negligible. The contraction and the increase in [Ca2+]i monitored by fura 2 fluorescence were unaffected by a blocker of L-type voltage-operated Ca2+ channels nifedipine. A blocker of nonselective cation channels 1-[beta-[3-(4-methoxyphenyl)propoxyl]-4-methoxyphenethyl]-1H-imida zole . HCl(SK&F 96365) suppressed the endothelin-1-induced contraction and increase in [Ca2+]i to the level similar to that after removal of extracellular Ca2+. SK&F 96365 had no further effect on the endothelin-1-induced contraction in the absence of extracellular Ca2+. The endothelin-1-induced contraction and increase in [Ca2+]i were abolished by a donor of NO sodium nitroprusside. The effects of another NO donor 3-morpholinosydnonimine (SIN-1) were also tested and yielded essentially similar results to those for sodium nitroprusside on the endothelin-1-induced contraction. Furthermore, the inhibitory effects of sodium nitroprusside could be blocked with a guanylate cyclase inhibitor 1H-[1,2,4]oxadiazolo[4,3,-a]quinoxalin-1-one (ODQ) at 30 microM. These findings suggest that Ca2+ entry through nonselective cation channels but not voltage-operated Ca2+ channels plays a critical role in the endothelin-1-induced increase in [Ca2+]i and the resulting contraction and that inhibition by NO of the endothelin-1-induced contraction is mainly the result of blockade of Ca2+ entry through these channels.

  13. Further evidence for differences between non-selective and BZ-1 (omega 1) selective, benzodiazepine receptor ligands in murine models of "state" and "trait" anxiety.

    Science.gov (United States)

    Griebel, G; Sanger, D J; Perrault, G

    1996-01-01

    The behavioural effects of several BZ (omega) receptor ligands were compared in mice using the light/dark choice task, an animal model of "state" anxiety, and the free-exploration test, which has been proposed as an experimental model of "trait" anxiety. The drugs used included non-selective full (alprazolam, clorazepate, chlordiazepoxide and diazepam), partial agonists (bretazenil, imidazenil and Ro 19-8022) and BZ-1 (omega 1) selective receptor ligands (abecarnil, CL 218,872 and zolpidem). In the light/dark choice task, non-selective full agonists elicited clear anxiolytic-like effects increasing time spent in the lit box and simultaneously reducing attempts at entry into the illuminated cage followed by withdrawal responses, a measure of risk assessment. With the exception of abecarnil, both non-selective partial agonists and BZ-1 (omega 1) selective receptor ligands displayed reduced efficacy compared to the full agonists as they decreased risk assessment responses without altering time in the lit box. In addition, the weak anxiolytic-like actions displayed by selective BZ-1 (omega 1) agents were evident only at doses which reduced locomotor activity, indicating that this effect may be non-specific. In the free-exploration test, non-selective BZ (omega) receptor agonists markedly increased the percentage of time spent in the novel compartment and reduced the number of attempts to enter whereas selective BZ-1 (omega 1) receptor ligands displayed a weaker neophobia-reducing effect as they reduced risk assessment responses only. As was the case in the light/dark choice task, this latter effect was observed at locomotor depressant doses. These findings indicate that while both full and partial BZ (omega) receptor agonists are equally effective against "trait" anxiety, full agonists may be superior in reducing "state" anxiety. In addition, the lack of specific effects of selective BZ-1 (omega 1) receptor ligands in reducing both types of anxiety suggests that the BZ

  14. Estudio serológico sobre toxoplasmosis en ganado ovino beneficiado en Lima, Perú

    OpenAIRE

    Olga Contreras L.; Abelardo Tejada V.

    2014-01-01

    Se ha realizado un estudio serológico para determirar la infección por Toxoplasma gondii en 250 ovinos, procedentes de 6 Departamentos del Perú (Arequipa, Ayacucho, Cajamarca, Ica, Lima, Puno). Se emplearon las técnicas de la Reacción de Hemaglutinación (R.H.A.) por el micrométodo en placos y la Reacción de Fijación del Complemento (R.F.C.) según la técnica del 50% de hemólisis de Bozicevich; con antígeno de Toxoplasma preparado en el Laboratorio de Toxoplasmosis del Instituto de Medicina Tro...

  15. [The career of Henrique da Rocha Lima and German-Brazilian relations (1901-1956)].

    Science.gov (United States)

    Silva, André Felipe Cândido da

    2010-06-01

    The career of Henrique da Rocha Lima is closely linked to cultural and scientific relations between Brazil and Germany. He pursued his scientific work at biomedical research institutions in both countries, but it was in Germany that he attained international standing, thanks to his research in the fields of microbiology, pathology and tropical medicine. His prestige and active participation in both Brazil's and Germany's scientific communities meant he was able to further academic interchange between both nations, mobilizing many people and institutions to contribute to this process. I present the obstacles and challenges faced in studying this complex character, whose career sheds light on the machinations of international scientific relations and some socio-historical processes that marked the institutionalization of science in Brazil.

  16. Implementation of the human talent management through competencies model in a university in Metropolitan Lima

    Directory of Open Access Journals (Sweden)

    Juan C. Rodríguez

    2015-12-01

    Full Text Available This article is a work proposal that aims to describe the methodology proposed by the Management of Personnel Management from a university in Lima, to implement a management model based on competencies which traceability involves various technical HR processes practiced in the organization and is aligned to institutional outcomes defined in the balance score card. In order to do it, various literature sources were consulted, and the websites of the top ten universities worldwide to identify benchmarks were visited. Generic skills, competencies level, specific skills, competencies dictionary and graduation for each of the managements, occupational categories and administrative headquarters of the University: as a result, the following definitions and elements were obtained. In this way, the institution develops a tool to guide how and to what extent human resources should have and develop skills to achieve specific organizational results

  17. STRATEGI PENGEMBANGAN AGROINDUSTRI DAN PENINGKATAN NILAI TAMBAH GAMBIR DI KABUPATEN LIMA PULUH KOTA SUMATERA BARAT

    Directory of Open Access Journals (Sweden)

    Nur Afni Evalia

    2012-11-01

    Full Text Available ABSTRACTThe objectives of this study were (1 to analyze the gambir-based-industry development potential in Lima Puluh Kota regencies and to understand the added value received by developing gambir products, (2 to compose the internal and external factors which effects the gambir agroindustry development’s strengths, weaknesses, opportunities, and threats, and (3 to devise a strategies to develop an export oriented strong gambir  processing industry. The analysis were used internal factor evaluation-external factors evaluation matrices which were used to sum up and evaluate the main strength and weakness in certain functions which can also be used as the base to identify strength and weakness conditions, SWOT analysis and quantitative strategic planning matrix. To illustrate the added value of gambir processing, the Hayami method was used. From the analysis, the increases in added values were obtained  from processing gambir into catechine and Tannin. Three kilograms of gambir can produce a 91,67% added value ratio of catechine and a 83,81% added value ratio of  Tannin. Based on the SWOT matrix, four alternative sets of strategies were derived, which are (1 reinvigorating the ATP (agrotechnopark in an effort to establish technological innovation of processing gambir into various processed products that have assured qualities and addequate ammounts, (2 creating a comfortable policy to regulate permits for domestic and foreign investors to enter, (3 raising the role of regional governments, plantation agencies, academia, financial institutions, and other related institutions in an effort to develop the agroindustry and to increase the added value in Lima Puluh Kota regencies, and (4 forming a gambir Marketing Support Organization (BPPG.Keywords: gambir, IFE and EFE matrix, hayami method, SWOT analysis, QSPM analysisABSTRAKTujuan  penelitian ini adalah (1 menganalisis potensi pengembangan berbasis gambir-industri di Kabupaten Lima Puluh Kota

  18. La visión ilustrada de los desastres naturales en Lima durante el siglo XVIII

    Directory of Open Access Journals (Sweden)

    Carcelén Reluz Carlos Guillermo

    2011-07-01

    Full Text Available Durante el siglo XVIII, Perú fue afectado por una serie de desastres naturales y epidemias que mermaron tanto la población como la producción agrícola. El artículo analiza tres casos: el período recurrente de frío extremo en los meses de invierno desde 1714 hasta 1720, que posibilitó una gran epidemia que asoló el sur de los Andes; el terremoto de 1746 en Lima, que marcó un hito en la sociedad, debido a la magnitud de su destrucción, y el fenómeno de ‘el niño’ (o ENSO de 1791 a 1794, uno de los que más daños generó, sobretodo en la costa norte del país.

  19. The 3D Lima\\c{c}on: Properties and Applications

    CERN Document Server

    Kreismann, Jakob; Sinzinger, Stefan

    2016-01-01

    We perform electromagnetic wave simulations of fully three-dimensional optical Lima\\c{c}on-microcavities, one basis for their future applications in microlasers and photonic devices. The analysis of the three-dimensional modes and far-fields reveals an increase of the quality factors as compared to the two-dimensional case. The structure of the far-field in the third dimension shows pronounced maxima in the emission directionality inclined to the resonator plane which may be exploited for coupling the resonator modes to the environment. This triggers ideas for technical applications, like the suggested sensor that can detect small changes in the environment based on changes in the emission profile.

  20. Prevalencia de enfermedades dentales en gatos (felis catus) de los distritos del cono norte de Lima.

    OpenAIRE

    Grandez, Ricardo; Facultad e Medicina Veterinaria y Zootecnia - Universidad Peruana Cayetano Heredia. Lima.; Guerrero, Heidi; Facultad e Medicina Veterinaria y Zootecnia - Universidad Peruana Cayetano Heredia. Lima

    2014-01-01

    Objetivo: Determinar la prevalencia de las patologías dentales de los gatos (Felis catus) del Cono Norte de Lima atendidos en la Clínica Veterinaria de la Universidad Peruana Cayetano Heredia. Material y métodos: Se evaluaron 200 felinos de 1 a 16 años de edad, sin distinción de raza y sexo. Las variables evaluadas fueron: edad (≥1 a <5, ≥5 a <9, ≥9 años), tipo de alimentación (balanceada, mixta sin hueso y mixta con hueso) y localización de la patología dental. Resultados: Se determinó...

  1. Adiciones a la fauna de protozoarios de los Pantanos de Villa, Lima, Perú

    Directory of Open Access Journals (Sweden)

    Gisella Guillén

    2013-06-01

    Full Text Available En nueve estaciones ubicadas en los cuerpos de agua de los Pantanos de Villa, Chorrillos, Lima; fueron realizadas colectas mensuales entre octubre de 1999 y agosto del 2000. Se determinaron 128 especies de protozoarios distribuidos en 101 géneros, 69 familias y 28 órdenes. De las 128 especies, 73 especies son registros nuevos para los Pantanos de Villa, reportándose hasta la actualidad un total de 171 especies de protozoarios para este lugar. El grupo predominante fue el de los ciliados con el 61,72% de las especies registradas, seguidos por los mastigóforos con el 21,87% y los sarcodinos con el 16,41%. El grupo más abundante fué el de los mastigóforos con el 75% de los individuos seguido de los ciliados (19,5% y sarcodinos (4,5%.

  2. [Medical degree earned with a thesis in medical schools of Lima, 2011: characteristics, motivations and perceptions].

    Science.gov (United States)

    Mejia, Christian R; Inga-Berrospi, Fiorella; Mayta-Tristán, Percy

    2014-01-01

    We surveyed physicians who obtained their medical degree with a thesis in 2011 from the seven medical schools in Lima to know the characteristics of the degree by thesis process, as well as participants’ motivations and perceptions of that process. We included 98 students who did a thesis (87% of total); 99% conducted observational thesis, 30% did so in groups of three. The main motivation was that it was good for their curriculum vitae (94%). At the university where the thesis is compulsory, the process began with the choice of topic and adviser. Perceived “greatest” and “least” difficulty in the process was the completion of administrative procedures (53%) and selection of their advisor (11%), respectively. Administrative timeliness and processes should be reviewed so as not to impede the completion of thesis, since the new University Act requires the completion of a thesis to graduate.

  3. Invertebrados del intermareal rocoso del departamento de Lima, Perú: Una lista comentada de especies

    Directory of Open Access Journals (Sweden)

    Carlos Paredes

    2014-06-01

    Full Text Available La diversidad faunística de la zona intermareal rocosa del departamento de Lima, Perú, fue estudiada en 16 localidades, con énfasis en la dominancia relativa de las especies y su distribución vertical. Se registró 175 especies de invertebrados incluidos en 11 Phyla, y con predominio de los moluscos (79 especies, crustáceos (44 especies y poliquetos (30 especies, los tres taxa que caracterizan el bentos marino. Considerando los estudios conocidos, el 41% del total de las especies está presente en la comunidad de Perurriytilus jourpuratus, 34% en Semimytilus algosus y 50% en Phragmatopoma moerchi. La diversidad y la zonación es generalizada para la Provincia Peruana.

  4. Ideological conditionings of the social protest criminalization and the support to democracy in a Lima sample

    Directory of Open Access Journals (Sweden)

    Jan Rottenbacher de Rojas

    2013-12-01

    Full Text Available The influence of right-wing political conservatism on support for democracy and the criminalization of social protest is analyzed in a sample of university students from the city of Lima (N = 201. As indicators of the right-wing political conservatism, measures of right-wing authoritarianism (RWA, social dominance orientation (SDO and right-wing political orientation were used. Two path diagrams were proposed: the second diagram showed a proper degree of fit and proposes a positive covariance between RWA, SDO and right-wing political orientation. The diagram also suggests that RWA, SDO and right-wing political orientation exert a direct influence on the criminalization of social protest, while SDO and RWA exert an indirect influence on support for democracy. Finally, support for democracy present an inverse correlation with the criminalization of social protest.

  5. Penyajian Data Pelanggan pada Lima Area PT. Telekomunikasi Indonesia, Tbk. Kandatel Pekalongan Menggunakan Google Earth

    Directory of Open Access Journals (Sweden)

    Much Aziz Muslim

    2015-10-01

    Full Text Available Prosedur sistem penyajian data pelanggan di PT. Telekomunikasi Indonesia, Tbk. Kandatel Pekalongan khususnya bidang Divisi Business Services masih menggunakan cara manual, hanya menggunakan media Micorsoft Excel. Dalam hal ini peneliti ingin menerapkannya dalam bentuk aplikasi Google Earth untuk membuat penyajian data pelanggan, karena Google Earth dapat memetakan bumi dari superimposisi gambar yang dikumpulkan dari pemetaan satelit, fotografi udara dan globe GIS tiga dimensi sehingga akan menghasilkan data yang akurat. Penyajian data dengan menggunakan Google Earth dilakukan dengan memanfaatkan bahasa markup HTML. Dengan cara ini, Divisi Business Service akan menjadi lebih mudah ketika menyajikan data-data para pelanggan Telkom yang mencakup lima area yaitu Batang, Pekalongan, Pemalang, Tegal dan Brebes. 

  6. Penyajian Data Pelanggan pada Lima Area PT. Telekomunikasi Indonesia, Tbk. Kandatel Pekalongan Menggunakan Google Earth

    Directory of Open Access Journals (Sweden)

    Much Aziz Muslim

    2015-10-01

    Full Text Available Prosedur sistem penyajian data pelanggan di PT. Telekomunikasi Indonesia, Tbk. Kandatel Pekalongan khususnya bidang Divisi Business Services masih menggunakan cara manual, hanya menggunakan media Micorsoft Excel. Dalam hal ini peneliti ingin menerapkannya dalam bentuk aplikasi Google Earth untuk membuat penyajian data pelanggan, karena Google Earth dapat memetakan bumi dari superimposisi gambar yang dikumpulkan dari pemetaan satelit, fotografi udara dan globe GIS tiga dimensi sehingga akan menghasilkan data yang akurat. Penyajian data dengan menggunakan Google Earth dilakukan dengan memanfaatkan bahasa markup HTML. Dengan cara ini, Divisi Business Service akan menjadi lebih mudah ketika menyajikan data-data para pelanggan Telkom yang mencakup lima area yaitu Batang, Pekalongan, Pemalang, Tegal dan Brebes. 

  7. La capilla de la Santa Vera Cruz (costumbres menestrales en Lima virreinal

    Directory of Open Access Journals (Sweden)

    Martha Barriga Tello

    2011-05-01

    Full Text Available La pequeña iglesia de la Veracruz responde a algunas singularidades que laconvierten en un caso interesante para la historia del arte en Lima. La historiade su construcción y de la función a la que finalmente fue destinada, evidencianaspectos que deben considerarse acerca de la dinámica que acompañabaestos procesos, así como de los hechos alrededor del contexto, el sector socialpara el cual se produjeron y las implicancias que como monumentos tuvieronpara la población. El edificio, por ejemplo, alberga una cofradía que este añocumplirá 462 años de existencia, una de las más antiguas instaladas en la ciudad.

  8. La ciudad progresiva: una lectura de los asentamientos humanos de Lima

    OpenAIRE

    Saez Giraldez, Elia

    2015-01-01

    La presente tesis busca aquellos aspectos de la ciudad informal, espontánea o popular, que podrían enriquecer el estudio y las miradas sobre las ciudades contemporáneas y dar ideas sobre una nueva forma de planificación, más versátil, capaz de evolucionar en el tiempo, más habitable y más adaptada a este momento histórico, partiendo desde una mirada de la ciudad de Lima, hasta develar, mediante el análisis de la evolución de sus tejidos y unidades de vivienda, una nueva idea de ciudad. La ciu...

  9. Prevalencia de enfermedades dentales en gatos (felis catus) de los distritos del cono norte de Lima.

    OpenAIRE

    Grandez, Ricardo; Facultad e Medicina Veterinaria y Zootecnia - Universidad Peruana Cayetano Heredia. Lima.; Guerrero, Heidi; Facultad e Medicina Veterinaria y Zootecnia - Universidad Peruana Cayetano Heredia. Lima

    2014-01-01

    Objetivo: Determinar la prevalencia de las patologías dentales de los gatos (Felis catus) del Cono Norte de Lima atendidos en la Clínica Veterinaria de la Universidad Peruana Cayetano Heredia. Material y métodos: Se evaluaron 200 felinos de 1 a 16 años de edad, sin distinción de raza y sexo. Las variables evaluadas fueron: edad (≥1 a <5, ≥5 a <9, ≥9 años), tipo de alimentación (balanceada, mixta sin hueso y mixta con hueso) y localización de la patología dental. Resultados: Se determinó...

  10. La visión ilustrada de los desastres naturales en Lima durante el siglo XVIII

    Directory of Open Access Journals (Sweden)

    Carlos Guillermo Carcelén Reluz

    2011-01-01

    Full Text Available Durante el siglo XVIII, Perú fue afectado por una serie de desastres naturales y epidemias que mermaron tanto la población como la producción agrícola. El artículo analiza tres casos: el período recurrente de frío extremo en los meses de invierno desde 1714 hasta 1720, que posibilitó una gran epidemia que asoló el sur de los Andes; el terremoto de 1746 en Lima, que marcó un hito en la sociedad, debido a la magnitud de su destrucción, y el fenómeno de 'el niño' (o ENSO de 1791 a 1794, uno de los que más daños generó, sobretodo en la costa norte del país.

  11. Consideraciones sobre el comercio de libros en Lima a principios del siglo XVII

    Directory of Open Access Journals (Sweden)

    González Sánchez, Carlos Alberto

    1997-12-01

    Full Text Available Not available.

    El estudio de la circulación libraria en la América colonial continúa siendo un tema poco explotado, contrastando con el auge de las investigaciones sobre bibliotecas particulares o de instituciones de enseñanza. Las razones, muy diversas, vienen determinadas por la escasez de fuentes, entre las que destacan los inventarios de mercaderes libreros, cuya información es indispensable para el conocimiento de las inquietudes lectoras y, en definitiva, de los esquemas mentales de la sociedad de la Edad Moderna. En esta ocasión, dos interesantes inventarios de mercancía libraria, negociada en Lima a principios del siglo XVII, nos ofrecerán algunos indicios de una faceta crucial de la vida humana: libros y lecturas.

  12. [A man with vision problems after coronary angiography].

    Science.gov (United States)

    Salomé, Mariet E; Jansen, Ben P W

    2015-01-01

    A 71-year-old man underwent a coronary angiography (CAG). Afterwards he experienced vision loss. Neurologic examination revealed bilateral cortical blindness. A cerebral CT-scan showed occipital hyperdensity, due to contrast accumulation and oedema. There was complete recovery of vision within 2 days. Transient cortical blindness after CAG is a rare complication of iodinated contrast agents.

  13. Value of abdominal angiography in Turner's syndrome

    Energy Technology Data Exchange (ETDEWEB)

    Barreto, A.; Castaneda-Zuniga, W.R.; Velasquez, G.; Zollikofer, C.; Amplatz, K.

    1981-01-01

    In patients with Turner's syndrome, there is a relatively high incidence of gastrointestinal bleeding due to telangiectasias of the intestine. Despite the importance of preoperative diagnosis of the lesion in planning surgical treatment. The related angiographic findings have never been reported. We have studied one patient in whom the diagnosis was established by preoperative angiography.

  14. Evaluation of angiography performed by radiographers and nurses

    Energy Technology Data Exchange (ETDEWEB)

    Chalmers, N.; Conway, B.; Andrew, H.; Parkinson, A.; Butterfield, J.S.; Fawcitt, R. A

    2002-04-01

    AIM: To evaluate out-patient angiography performed by nurses and radiographers. MATERIALS AND METHODS: A protocol for out-patient angiography performed by nurses and radiographers was drawn up and approved by the Trust's Risk Management Committee. Following training, two experienced radiographers and one nurse undertook elective peripheral or renal angiography according to the protocol on 187 patients. Angiograms were performed using a 3F catheter introduced into the abdominal aorta from a femoral approach. Patients were discharged after 2 hours and contacted by telephone the following morning. RESULTS: No patient refused consent for the procedure. One hundred and seventy-two patients underwent successful catheterization without assistance from a radiologist. Radiologist assistance was required with femoral puncture or catheter/guidewire manipulation in 15 cases (8%). Images were considered diagnostic by the reporting radiologist in all but one case. This patient was recalled for further aortogram and pressure measurements. There was a single puncture site complication due to transient stenosis of the common femoral artery at the puncture site. This is thought to have been the result of subintimal injection of local anaesthetic, and it resolved spontaneously over 30 minutes. There were no delayed complications. CONCLUSION: Experienced nurses and radiographers can rapidly acquire the skills to perform diagnostic angiography safely and efficiently. Chalmers, N. et al. (2002)

  15. Clinical application of iopamidol (pamiray 300) for cerebral angiography

    Energy Technology Data Exchange (ETDEWEB)

    Park, Sung Ho; Suh, Sang Hyun; Kim, Jin Na; Kim, Eung Yeop; Kim, Dong Joon; Lee, Seung Koo; Kim, Dong Ik [Yonsei University College of Medicine, Seoul (Korea, Republic of)

    2007-08-15

    The aim of this study was to assess the clinical safety and efficacy of Pamiray 300 (Iopamidol; Dongkook Pharm, Seoul, Korea) as a nonionic contrast medium for cerebral angiography. One hundred patients undergoing cerebral angiography were randomly assigned to receive Pamiray 300 after written consent had been obtained. Patients with adverse reactions were divided into two groups. One group consisted of patients with minor adverse events such as heat sensation and pain, and the other group consisted of patients with major adverse events such as dyspnea, laryngeal edema and shock. The qualities of the radiographic images were stratified into five grades by three independent radiologists. No abnormality induced by Pamiray 300 was seen by a physical and neurological examination, blood pressure measurement, electrocardiogram, respiration rate measurement and partial fraction of arterial oxygen recording. No major and severe adverse events occurred throughout the study. Patient sex, age, disease category, underlying disease and administered contrast dosage showed no statistical significance with regards to the occurrence of adverse events. The opacification of blood vessels in all patients was 'good' or 'excellent'. Based on the results of this study, Pamiray 300 is a safe, efficacious and well-tolerated contrast medium for use in cerebral angiography. Thus, Pamiray 300 can be used as a competitive medium in cerebral angiography.

  16. Slovenian experience from diagnostic angiography to interventional radiology

    Directory of Open Access Journals (Sweden)

    Pavcnik Dusan

    2014-12-01

    Full Text Available Background. The purpose of writing this article is to document the important events and people in the first 50 years of diagnostic angiography and interventional radiology in Slovenia. During this period not only did the name of the institutions and departments change, but also its governance.

  17. Image Quality in Reduced-Dose Coronary CT Angiography

    NARCIS (Netherlands)

    Gagarina, Nina V.; Irwan, Roy; Gordina, Galina; Fominykh, Ekaterina; Sijens, Paul E.

    2011-01-01

    Rationale and Objectives: Concerns for patient's risk of radiation-induced cancer have increased demand for reduced-dose coronary computed tomography angiography (CCTA). Previous comparisons of full and reduced-dose CCTA were not conclusive, because results were compared in different groups of patie

  18. Acute gastrointestinal bleeding: CT angiography with multi-planar reformatting.

    Science.gov (United States)

    Steiner, Kate; Gollub, Frank; Stuart, Sam; Papadopoulou, Anthie; Woodward, Nick

    2011-04-01

    Acute gastrointestinal bleeding is a common medical emergency, which carries a significant mortality. CT Angiography is an important non-invasive diagnostic tool, which can be used to plan subsequent endovascular or surgical management. The cases presented demonstrate that a meticulous and systematic approach to image interpretation is necessary, in particular, to detect focal sites of contrast extravasation and small pseudoaneurysms.

  19. Neurologic complications of cerebral angiography in childhood moyamoya syndrome

    Energy Technology Data Exchange (ETDEWEB)

    Robertson, R.L.; Chavali, R.V.; Robson, C.D.; Barnes, P.D.; Burrows, P.E. [Department of Radiology, Children`s Hospital Medical Center, Boston, MA (United States); Eldredge, E.A. [Department of Anesthesia, Children`s Hospital Medical Center and Harvard Medical School, Boston, MA (United States); Scott, R.M. [Department of Neurosurgery, Children`s Hospital Medical Center and Harvard Medical School, Boston, MA (United States)

    1998-11-01

    Purpose. To determine the incidence of neurologic complications of cerebral angiography in children with moyamoya syndrome (MMS) as compared to children without MMS. Materials and methods. One-hundred-ninety consecutive cerebral angiograms obtained in 152 children were evaluated. Sixty of these angiograms were obtained in 40 children with MMS. Patients underwent neurologic evaluation prior to and after the procedure. For this study, a neurologic complication was defined as any new focal neurologic deficit or alteration in mental status occurring during the procedure or within the ensuing 24 hours. Results. There were 2 neurologic complications within 24 hours of angiography, one in the MMS group and one in the non-MMS group. One patient with MMS became mute following angiography. The symptom resolved within 12 hours. One patient without MMS being examined postoperatively for residual arteriovenous malformation developed intracranial hemorrhage requiring reexploration 12 hours after the angiogram. Using a two-tail Fisher`s exact test, there was no significant statistical difference in the ischemic (P = 0.3) or hemorrhagic (P = 1.0) complication rates between the group of patients with MMS and the non-MMS groups. Conclusion. The risk of a neurologic complication from cerebral angiography in children with MMS is low and not statistically different from the risk in children with other cerebrovascular disorders. (orig.) With 8 tabs., 37 refs.

  20. Mono-energy coronary angiography with a compact light source

    Science.gov (United States)

    Eggl, Elena; Mechlem, Korbinian; Braig, Eva; Kulpe, Stephanie; Dierolf, Martin; Günther, Benedikt; Achterhold, Klaus; Herzen, Julia; Gleich, Bernhard; Rummeny, Ernst; Noël, Peter B.; Pfeiffer, Franz; Muenzel, Daniela

    2017-03-01

    While conventional x-ray tube sources reliably provide high-power x-ray beams for everyday clinical practice, the broad spectra that are inherent to these sources compromise the diagnostic image quality. For a monochromatic x-ray source on the other hand, the x-ray energy can be adjusted to optimal conditions with respect to contrast and dose. However, large-scale synchrotron sources impose high spatial and financial demands, making them unsuitable for clinical practice. During the last decades, research has brought up compact synchrotron sources based on inverse Compton scattering, which deliver a highly brilliant, quasi-monochromatic, tunable x-ray beam, yet fitting into a standard laboratory. One application that could benefit from the invention of these sources in clinical practice is coronary angiography. Being an important and frequently applied diagnostic tool, a high number of complications in angiography, such as renal failure, allergic reaction, or hyperthyroidism, are caused by the large amount of iodine-based contrast agent that is required for achieving sufficient image contrast. Here we demonstrate monochromatic angiography of a porcine heart acquired at the MuCLS, the first compact synchrotron source. By means of a simulation, the CNR in a coronary angiography image achieved with the quasi-mono-energetic MuCLS spectrum is analyzed and compared to a conventional x-ray-tube spectrum. The results imply that the improved CNR achieved with a quasi-monochromatic spectrum can allow for a significant reduction of iodine contrast material.

  1. Managing fishery resources: proceedings of a symposium co-sponsored by the World Bank and Peruvian Ministry of Fisheries held in Lima, Peru, June 1992

    National Research Council Canada - National Science Library

    Loayza, Eduardo A

    1994-01-01

    The Symposium on Fishery Resources Management held in Lima, Peru, in June 1992 addressed several aspects of fishery management theory and practice, the experience of different countries, and current...

  2. [Criminal claims about medical professional liability in the Instituto de Medicina Legal of Lima, Peru].

    Science.gov (United States)

    Navarro-Sandoval, Cleyber; Arones-Guevara, Shermany; Carrera-Palao, Rosa; Casana-Jara, Kelly; Colque-Jaliri, Tomasa

    2013-07-01

    To determine the characteristics of the criminal complaints claining medical professional liability, based on the expert reports issued by the Forensic Examination Division of Lima, Peru. A cross-sectional study was carried out, which included all the expert reports issued between 2005 and 2010 at the Forensic Examination Division of Lima, Peru. A descriptive analysis of each of the variables was performed. 60.3% (495/821) of the criminal complaints for medical professional liability were valued as being in accordance with the lex artis while 16.8% (138/821) were not in accordance with the lex artis. In 13% (107/821) of the cases, conclusions could not be drawn;in 9.9% (81/821) of the cases, the conclusions in the expert report did not include an valuations of the medical act.The cases in which the injury was attributed to the process of the disease itself accounted for 80.9% (502/620), and those in which in the injury was considered a result of the health care received were 19.0% (118/620). The distribution of the cause of the injury based on accordance with the lex artis showed significant differences. In our country, the number of claims for claimed medical liability is increasing, predominantly in relation to surgical specialties, where a medical act is more likely to be considered not in accordance with the lex artis. In addition, in a significant percentage of cases, no conclusions are drawn about the medical act.

  3. Estudio sobre las redes de soporte social de niños trabajadores en Lima Metropolitana

    Directory of Open Access Journals (Sweden)

    Rocío Franco

    2013-09-01

    Full Text Available La presente investigación se refiere a un estudio descriptivo sobre las redes de soporte social en 30 niños trabajadores y 30 niños no-trabajadores de 9 años, provenientes de una zona urbano marginal de Lima. Todos vivían con sus padres y asistían a la escuela en forma regular. Los resultados muestran que las redes de estos niños tienden a ser más amplias y dispersas y que sus relaciones de intercambio se basan en aspectos concretos y funcionales. Asimismo, se encontró que los miembros adultos de la red mantienen relaciones insatisfactorias con el niño, por consiguiente los adultos no logran una presencia significativa en la red, y los padres la mantienen gracias a la estabilidad y facilidad de acceso de sus lazos. La comparación con redes de niños no-trabajadores muestra que las características antes señaladas son particulares a los niños que trabajan. This paper deals with a descriptive study on social support networks in 30 working children and 30 non working children. Their average age was 9 years, all of them lived with their parents in urban marginal zones of Lima, and assisted regularly to school. The results show that social networks of working children have a tendency to be wide and that their exchange relationship is based on functional and concrete aspects. It was also found that the adult members of the network maintained non satisfactory relationships with the children. As a consequence adults do not have a significant presence in the network. Parents maintain their presence due to stability and facility of their access. These characteristics belong exclusively to working children.

  4. Whole-cell clamp of dissociated photoreceptors from the eye of Lima scabra.

    Science.gov (United States)

    Nasi, E

    1991-01-01

    Voltage-dependent membrane currents were investigated in enzymatically dissociated photoreceptors of Lima scabra using the whole-cell clamp technique. Depolarizing steps to voltages more positive than -10 mV elicit a transient inward current followed by a delayed, sustained outward current. The outward current is insensitive to replacement of a large fraction of extracellular Cl- with the impermeant anion glucuronate. Superfusion with tetraethylammonium and 4-aminopyridine reversibly abolishes the outward current, and internal perfusion with cesium also suppresses it, indicating that it is mediated by potassium channels. Isolation of the inward current reveals a fast activation kinetics, the peak amplitude occurring as early as 4-5 ms after stimulus onset, and a relatively rapid, though incomplete inactivation. Within the range of voltages examined, spanning up to +90 mV, reversal was not observed. The inward current is not sensitive to tetrodotoxin at concentrations up to 10 microM, and survives replacement of extracellular Na with tetramethylammonium. On the other hand, it is completely eliminated by calcium removal from the perfusing solution, and it is partially blocked by submillimolar concentrations of cadmium, suggesting that it is entirely due to voltage-dependent calcium channels. Analysis of the kinetics and voltage dependence of the isolated calcium current indicates the presence of two components, possibly reflecting the existence of separate populations of channels. Barium and strontium can pass through these channels, though less easily than calcium. Both the activation and the inactivation become significantly more sluggish when these ions serve as the charge carrier. A large fraction of the outward current is activated by preceding calcium influx. Suppression of this calcium-dependent potassium current shows a small residual component resembling the delayed rectifier. In addition, a transient outward current sensitive to 4-aminopyridine (Ia) could

  5. Estudio epidemiológico de los trastornos alimentarios y factores asociados en Lima Metropolitana

    Directory of Open Access Journals (Sweden)

    Patricia Martínez

    2013-09-01

    Full Text Available El presente estudio consistió en analizar la prevalencia de los trastornos alimentarios en la población de mujeres adolescentes escolares de Lima Metropolitana y los factores asociados a dichos trastornos. Asimismo, se buscó determinar la población en riesgo de desarrollar alguno de estos trastornos. Se evaluó un total de 2141 adolescentes entre los 13 y los 19 años, de 3° a 5° de secundaria, seleccionadas mediante un muestreo probabilístico bietápico por conglomerados y estratificado según régimen de gestión del colegio (público o privado, y se les aplicó el Inventario de Conductas Alimentarias (ICA de Zusman (2000. Los resultados mostraron un 16.4% de casos con uno o más trastornos alimentarios y un 15.1% de la población en situación de riesgo. The present study had the objectives of analyzing the prevalence of eating disorders in adolescent women attending school in Metropolitan Lima, identifying the factors related to those disorders and defining the population at risk of developing any of those disorders. A total of 2141 adolescents between 13 and 19 years old in their last three years of high school made up the probabilistic sample. This sample was chosen by clusters in two moments and stratified according to either private or public school. The Eating Behavior Inventory (ICA was administered. Results showed that 16.4% of the cases had one or more eating disorders and 15.1% of the sample was at risk of developing one.

  6. Oliveira Lima e a diplomacia brasileira no início da República

    Directory of Open Access Journals (Sweden)

    Paulo Roberto de Almeida

    2009-12-01

    Full Text Available En este artículo se trata la figura de Manuel de Oliveira Lima, como personaje clave en la diplomacia brasileña de finales del siglo XIX y principios del siglo XX. Siempre ocupó una posición especial, debido a sus características particulares, principalmente su intensa actividad como historiador y periodista. Tales rasgos no impidieron que sus valores tanto intelectuales como políticos quedaran oscurecidos por la figura incontestable de Barão do Rio Branco. Se estudian sus facetas como autor y formulador de la política exterior brasileña, tanto virtudes como defectos, en unos momentos de gran importancia para el país en su calidad de época de transición en los ámbitos político, económico y cultural.___________________ABSTRACT:In this article Manuel de Oliveira Lima's figure treats itself, as key personage in the Brazilian diplomacy of ends of the 19th century and beginning of the 20th century. Always he occupied a special position, due to his particular characteristics, principally his intense activity as historian and journalist. Such features did not prevent that his values so much intellectual as politicians were remaining got dark by the incontestable figure of Barão do Rio Branco. His facets are studied as author and formulador of the foreign Brazilian policy, both virtues and faults, in a few moments of great importance for the country in his quality of age of transition in the politically, economically and culturally.

  7. Prevalence and risk factors associated with pediculosis capitis in an impoverished urban community in Lima, Peru

    Directory of Open Access Journals (Sweden)

    Hannah Lesshafft

    2013-01-01

    Full Text Available Background: Pediculosis capitis is a ubiquitous parasitic skin disease associated with intense pruritus of the scalp. In developing countries it frequently affects children and adults, but epidemiological data at the community level are rare. Objectives: To assess prevalence and risk factors associated with pediculosis capitis in a resource-poor community in Lima, Peru. Materials and Methods: In total, 736 persons living in 199 households in a circumscribed neighbourhood were examined for head lice and nits by visual inspection. At the same time, socio-demographic data were collected using a structured questionnaire. Variables associated with pediculosis were identified by performing a bivariate analysis, followed by a multivariate logistic regression analysis. Results: Prevalence of pediculosis capitis was 9.1% (95% confidence interval (CI: 7.0-11.2 % in the general population and 19.9% (CI: 15.4-24.4% in children ≤15 years of age. Multivariate analysis showed that pediculosis capitis was significantly associated with age ≤ 15 years (OR: 16.85; CI:7.42-38.24, female sex (OR: 2.84; CI: 1.58-5.12, household size of >4 persons (OR: 1.98; CI: 1.11-3.55, low quality of house construction material (OR:2.22; CI: 1.20-4.12, and presence of animals in the household (OR: 1.94; CI: 1.11-3.39. Conclusion: Pediculosis capitis was a very common disease in the studied community in Lima, Peru. Our logistic regression analysis affirms that young age is the most important risk factor for pediculosis capitis. Moreover, female sex, large household size, living in wooden houses and the presence of animals were identified as being significantly associated with head lice infestation.

  8. Prevalence and risk factors associated with pediculosis capitis in an impoverished urban community in lima, peru.

    Science.gov (United States)

    Lesshafft, Hannah; Baier, Andreas; Guerra, Humberto; Terashima, Angelica; Feldmeier, Hermann

    2013-10-01

    Pediculosis capitis is a ubiquitous parasitic skin disease associated with intense pruritus of the scalp. In developing countries it frequently affects children and adults, but epidemiological data at the community level are rare. To assess prevalence and risk factors associated with pediculosis capitis in a resource-poor community in Lima, Peru. In total, 736 persons living in 199 households in a circumscribed neighbourhood were examined for head lice and nits by visual inspection. At the same time, socio-demographic data were collected using a structured questionnaire. Variables associated with pediculosis were identified by performing a bivariate analysis, followed by a multivariate logistic regression analysis. Prevalence of pediculosis capitis was 9.1% (95% confidence interval (CI): 7.0-11.2 %) in the general population and 19.9% (CI: 15.4-24.4%) in children ≤15 years of age. Multivariate analysis showed that pediculosis capitis was significantly associated with age ≤ 15 years (OR: 16.85; CI:7.42-38.24), female sex (OR: 2.84; CI: 1.58-5.12), household size of >4 persons (OR: 1.98; CI: 1.11-3.55), low quality of house construction material (OR:2.22; CI: 1.20-4.12), and presence of animals in the household (OR: 1.94; CI: 1.11-3.39). Pediculosis capitis was a very common disease in the studied community in Lima, Peru. Our logistic regression analysis affirms that young age is the most important risk factor for pediculosis capitis. Moreover, female sex, large household size, living in wooden houses and the presence of animals were identified as being significantly associated with head lice infestation.

  9. Temporal and spatial distributions of larval fish assemblages in the Lima estuary (Portugal)

    Science.gov (United States)

    Ramos, Sandra; Cowen, Robert K.; Ré, Pedro; Bordalo, Adriano A.

    2006-01-01

    The Lima estuary (NW Portugal) is at the end of an international watershed, whose potential role as a spawning and nursery habitat for local fish populations has not been previously examined. To address this knowledge gap, fortnightly plankton surveys were conducted between April 2002 and April 2004. A total of 12,903 larvae, belonging to 20 families and 50 taxa were collected, with a mean abundance of 8 individuals per 100 m 3. Gobiidae was the most abundant family comprising 71% of the total catch, followed by Clupeidae with 12% of the total. The top six abundant taxa ( Pomatoschistus spp., Sardina pilchardus, Ammodytes tobianus, unidentified Clupeidae, Symphodus melops and Solea senegalensis) represented 91% of the total catch. Fish larvae showed a seasonal trend with abundances increasing during spring and summer. Diversity was generally low ( H' = 0.65) with high dominance of very few taxa. Near the ocean, the larval fish assemblage was more diverse due to the presence of marine species. In the lower estuary Channel zone, abundance was lower than in the two upstream salt marsh zones (North and South zones) and no statistical differences in abundance or diversity values were found within the latter zones. ANOSIM results demonstrated seasonal differences in the species composition, mainly during the second winter period which was typified by a pelagic species A. tobianus. The community in the Channel zone was more diverse in comparison with the other zones, which were highly dominated by the most abundant species. The spatial and temporal trends of the most abundant species were typical for Iberian estuaries, with the exception of the low abundance of anchovy larvae and the unusually high numbers and frequency of S. pilchardus, usually mentioned as accidental in estuarine systems. Overall results suggest that the Lima estuary larval fish assemblage has a strong seasonality and affinity to the salt marsh zones. It seems that spawning seasonality controlled the

  10. DUA PULUH LIMA TAHUN KERJA SAMA DEPKES RI DENGAN NAMRU-2

    Directory of Open Access Journals (Sweden)

    Suriadi Gunawan

    2012-09-01

    Full Text Available Buletin nomor ini diterbitkan untuk memperingati 25 tahun kerja sama antara Departemen Kesehatan RI dan U.S. Naval Medical Research Unit No. 2 (NAMRU-2. Kerja sama ini telah menghasilkan sumbangan yang sangat berharga untuk peningkatan kesehatan baik di Indonesia maupun di dunia, khususnya di negara sedang berkembang. Hasil evaluasi vaksin typhoid dan cara pengobatan malaria serta dehidrasi berat akibat diare adalah beberapa contoh dari kerja sama ini yang sangat bermanfaat untuk mencegah penyakit dan kematian. Hasil kerja sama dalam 20 tahun pertama telah diseminarkan dalam tahun 1990 dan dipublikasikan dalam suatu nomor khusus buletin ini. Dengan staf yang terdiri dari 20 orang asing, dan 140 orang Indonesia, NAMRU-2 telah melaksanakan berbagai penelitian di berbagai daerah bersama peneliti Badan Litbangkes, Universitas, Angkatan Bersenjata serta dinas kesehatan setempat. Lebih dari 400 publikasi ilmiah telah dihasilkan oleh kerja sama ini. Dalam lima tahun terakhir penelitian berbagai aspek malaria di Irian Jaya antara lain telah menghasilkan peta resistensi obat malaria dan penemuan manfaat primakuin sebagai obat profilaksis yang aman dan relatif murah. Uji coba fase III vaksin tifoid oral Ty21a telah dilaksanakan di Sumatra Selatan, sedangkan suatu vaksin kolera oral, CVD 103 HgR, sedang diuji coba fase III di Jakarta. Penelitian genotype HIV di Indonesia yang telah dilaksanakan bersama Universitas Indonesia dan Dinas Kesehatan ABRI telah membantu memperjelas epidemi HIV/AIDS di Indonesia. Penelitian lapangan mengenai hepatitis E di Kalimantan dan Japanese Encephalitis di Bali telah memperjelas penularan dan risiko penyakit tersebut. Badan Litbangkes dan NAMRU akan melanjutkan kerjasama penelitian dan pelatihan di bidang penyakit menular dalam masa lima tahun yang akan datang. Beberapa bidang yang akan mendapat perhatian ialah surveilans berbagai penyakit infeksi yang baru dan timbul kembali (new and reemerging infections, uji coba berbagai

  11. DUA PULUH LIMA TAHUN KERJA SAMA DEPKES RI DENGAN NAMRU-2

    Directory of Open Access Journals (Sweden)

    Suriadi Gunawan

    2012-09-01

    Full Text Available Buletin nomor ini diterbitkan untuk memperingati 25 tahun kerja sama antara Departemen Kesehatan RI dan U.S. Naval Medical Research Unit No. 2 (NAMRU-2. Kerja sama ini telah menghasilkan sumbangan yang sangat berharga untuk peningkatan kesehatan baik di Indonesia maupun di dunia, khususnya di negara sedang berkembang. Hasil evaluasi vaksin typhoid dan cara pengobatan malaria serta dehidrasi berat akibat diare adalah beberapa contoh dari kerja sama ini yang sangat bermanfaat untuk mencegah penyakit dan kematian. Hasil kerja sama dalam 20 tahun pertama telah diseminarkan dalam tahun 1990 dan dipublikasikan dalam suatu nomor khusus buletin ini. Dengan staf yang terdiri dari 20 orang asing, dan 140 orang Indonesia, NAMRU-2 telah melaksanakan berbagai penelitian di berbagai daerah bersama peneliti Badan Litbangkes, Universitas, Angkatan Bersenjata serta dinas kesehatan setempat. Lebih dari 400 publikasi ilmiah telah dihasilkan oleh kerja sama ini. Dalam lima tahun terakhir penelitian berbagai aspek malaria di Irian Jaya antara lain telah menghasilkan peta resistensi obat malaria dan penemuan manfaat primakuin sebagai obat profilaksis yang aman dan relatif murah. Uji coba fase III vaksin tifoid oral Ty21a telah dilaksanakan di Sumatra Selatan, sedangkan suatu vaksin kolera oral, CVD 103 HgR, sedang diuji coba fase III di Jakarta. Penelitian genotype HIV di Indonesia yang telah dilaksanakan bersama Universitas Indonesia dan Dinas Kesehatan ABRI telah membantu memperjelas epidemi HIV/AIDS di Indonesia. Penelitian lapangan mengenai hepatitis E di Kalimantan dan Japanese Encephalitis di Bali telah memperjelas penularan dan risiko penyakit tersebut. Badan Litbangkes dan NAMRU akan melanjutkan kerjasama penelitian dan pelatihan di bidang penyakit menular dalam masa lima tahun yang akan datang. Beberapa bidang yang akan mendapat perhatian ialah surveilans berbagai penyakit infeksi yang baru dan timbul kembali (new and reemerging infections, uji coba berbagai

  12. P-glycoprotein and its inducible expression in three bivalve species after exposure to Prorocentrum lima.

    Science.gov (United States)

    Huang, Lu; Liu, Su-Li; Zheng, Jian-Wei; Li, Hong-Ye; Liu, Jie-Sheng; Yang, Wei-Dong

    2015-12-01

    P-glycoprotein (P-gp or ABCB1) belongs to the family of ATP-binding cassette (ABC) transporters responsible for multixenobiotic resistance (MXR) in aquatic organisms. To provide more information of P-gp in shellfish, in this study, complete cDNA of P-gp in three bivalve species including Ruditapes philippinarum, Scapharca subcrenata and Tegillarca granosa were cloned and its expressions in gill, digestive gland, adductor muscle and mantle of the three bivalves were detected after exposure to Prorocentrum lima, a toxogenic dinoflagellate. The complete sequences of R. philippinarum, S. subcrenata and T. granosa P-gp showed high homology with MDR/P-gp/ABCB proteins from other species, having a typical sequence organization as full transporters from the ABCB family. Phylogenetic analyses revealed that the amino acid sequences of P-gp from S. subcrenata and T. granosa had a closest relationship, forming an independent branch, then grouping into the other branch with Mytilus californianus, Mytilus galloprovincialis and Crassostrea gigas. However, P-gp sequences from R. philippinarum were more similar to the homologs from the more distantly related Aplysia californica than to homologs from S. subcrenata and T. granosa, suggesting that bivalves P-gp might have different paralogs. P-glycoprotein expressed in all detected tissues but there were large differences between them. After exposure to P. lima, the expression of P-gp changed in the four tissues in varying degrees within the same species and between different species, but the changes in mRNA and protein level were not always synchronous.

  13. Prevalence and correlates of oral human papillomavirus infection among healthy males and females in Lima, Peru.

    Science.gov (United States)

    Rosen, Brian J; Walter, Leora; Gilman, Robert H; Cabrerra, Lilia; Gravitt, Patti E; Marks, Morgan A

    2016-03-01

    The incidence of human papillomavirus (HPV) associated head and neck cancers (HNCs) have been increasing in Peru. However, the burden of oral HPV infection in Peru has not been assessed. The objective of this cross-sectional study was to estimate the prevalence and correlates of oral HPV infection in a population-based sample from males and females from Lima, Peru. Between January 2010 and June 2011, a population-based sample of 1099 individuals between the ages of 10 and 85 from a low-income neighbourhood in Lima, Peru was identified through random household sampling. Information on demographic, sexual behaviours, reproductive factors and oral hygiene were collected using interviewer-administered questionnaires. Oral rinse specimens were collected from each participant, and these specimens were genotyped using the Roche Linear Array assay. ORs were used to assess differences in the prevalence of any oral HPV and any high-risk oral HPV infection by demographic factors, sexual practices and oral hygiene among individuals 15+ years of age. The prevalence of any HPV and any high-risk HPV (HR-HPV) was 6.8% and 2.0%, respectively. The three most common types were HPV 55 (3.4%), HPV 6 (1.5%) and HPV 16 (1.1%). Male sex (aOR, 2.21; 95% CI 1.22 to 4.03) was associated with any HPV infection after adjustment. The prevalence of oral HPV in this study was similar to estimates observed in the USA. Higher prevalence of oral infections in males was consistent with a male predominance of HPV-associated HNCs and may signal a sex-specific aetiology in the natural history of infection. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

  14. Lima: espacio público en transición. La plaza de la democracia 2006

    Directory of Open Access Journals (Sweden)

    Johanna Hamann

    2012-03-01

    Full Text Available La estructura urbana de una ciudad es una realidad viva en constante transformación habitada, compartida y apropiada por ciudadanos y ciudadanas. En particular, los espacios públicos, como espacios de todos, son escenarios sensibles en que la ciudadanía manifiesta “visiblemente” esta apropiación. La Marcha de los Cuatro Suyos del año 2000 y los posteriores hechos violentos que desembocaron en la destrucción e incendio del Banco de la Nación fueron el escalón inicial en un proceso político en que la ciudadanía limeña buscó un cambio hacia la democracia, ante la intencionalidad del presidente Alberto Fujimori de perpetuarse en el poder. A raíz de estos hechos, se creó la Plaza de la Democracia en el espacio vacío que quedó después del incendio. Sin embargo, aunque esta plaza nació a la luz de una protesta social, la falta de voluntad política del gobierno de Alejandro Toledo de relacionar y coordinar arte público, paisaje, ciudad y patrimonio no tuvo eco en las primeras respuestas de reconstrucción del espacio. Proponemos la realización del proyecto “Urin Kancha”2 para visibilizar la viabilidad de intervenir este espacio público, aludiendo a la memoria de la configuración misma del territorio donde se asienta Lima, la capital del Perú, mediante una intervención tipo huaca, que a la vez de remitirnos a los ocupantes nativos de Lima, rememora también al espacio como un sepulcro, rindiendo así homenaje a los seis guardianes del Banco de la Nación, que murieron trágicamente.

  15. Consumo de alcohol y drogas y factores psicosociales asociados en adolescentes de Lima

    Directory of Open Access Journals (Sweden)

    Eduardo Salazar

    2004-09-01

    Full Text Available Objetivo: Determinar la prevalencia del consumo de alcohol y drogas y los factores psicosociales asociados con dicho consumo en adolescentes de Lima. Diseño: Estudio analítico de corte transversal. Material y Métodos: Se estudió una muestra de 430 adolescentes de educación secundaria de un colegio de Lima. Se utilizó el Cuestionario Tamiz de Experiencias Personales (Personal Experience Screening Questionnaire - PESQ. Resultados: Se recibió 391 encuestas válidas. La prevalencia de consumo de alcohol o drogas fue 43%, de alcohol 42,2%, de marihuana 8,7% y de cocaína 3,1%. Se encontró problema de consumo de alcohol o drogas en el 10,7%, los factores psicosociales asociados fueron distrés psicológico severo (OR 4,58 IC 95% 1,60-13,05, pensamiento problemático severo (OR 2,63 IC 95% 1,15-6,01 y abuso físico (OR 2,31 IC 95% 1,19-4,49. Conclusiones: El factor psicosocial más asociado al problema de consumo de drogas fue el distrés psicológico severo. Asimismo, se encontró asociación entre el pensamiento problemático severo y el abuso físico con dicho problema. El acoso sexual sólo se encontró asociado en los adolescentes de segundo de secundaria.

  16. Non-enhanced MR angiography of renal arteries: comparison with contrast-enhanced MR angiography.

    Science.gov (United States)

    Angeretti, M G; Lumia, D; Canì, A; Barresi, M; Nocchi Cardim, L; Piacentino, F; Maresca, A M; Novario, R; Genovese, E A; Fugazzola, C

    2013-09-01

    The main causes of renal artery stenosis (RAS) are atherosclerosis and fibromuscular dysplasia. Despite contrast-enhanced magnetic resonance angiography (CE-MRA) being a safe and reliable method for diagnosis of RAS especially in young individuals, recently it has been possible to adopt innovative technologies that do not require paramagnetic contrast agents. To assess the accuracy of steady-state free-precession (SSFP) non-contrast-enhanced magnetic resonance angiography (NC-MRA) by using a 1.5 T MR scanner for the detection of renal artery stenosis, in comparison with breath-hold CE-MRA as the reference standard. Sixty-three patients (33 men, 30 women) with suspected renovascular hypertension (RVHT) were examined by a 1.5T MR scanner; NC-MRA with an electrocardiography (ECG)-gated SSFP sequence was performed in 58.7% (37/63) of patients; in 41.3% (26/63) of patients a respiratory trigger was used in addition to cardiac gating. CE-MRA, with a three-dimensional gradient echo (3D-GRE) T1-weighted sequence, was performed in all patients within the same session. Maximum intensity projection (MIP) image quality, number of renal arteries, and the presence of stenosis were assessed by two observers (independently for NC-MRA and together for CE-MRA). The agreement between NC-MRA and CE-MRA as well as the inter-observer reproducibility were calculated with Bland-Altman plots. MIP image quality was considered better for NC-MRA. NC-MRA identified 143 of 144 (99.3%) arteries detected by CE-MRA (an accessory artery was not identified). Fourteen stenoses were detected by CE-MRA (11 atherosclerotic, 3 dysplastic) with four of 14 (28.5%) significant stenosis. Bland-Altman plot demonstrated an excellent concordance between NC-MRA and CE-MRA; particularly, the reader A evaluated correctly all investigated arteries, while over-estimation of two stenoses occurred for reader B. Regarding NC-MRA, inter-observer agreement was excellent. NC-MRA is a valid alternative to CE-MRA for the

  17. Non-enhanced MR angiography of renal arteries - Comparison with contrast-enhanced MR angiography

    Energy Technology Data Exchange (ETDEWEB)

    Angeretti, M. G.; Lumia, D.; Cani, A.; Barresi, M.; Cardim, L Nocchi; Piacentino, F.; Genovese, E. A.; Fugazzola, C. [Dept. of Radiology, Insubria Univ., Ospedale di Circolo e Fondazione Macchi, Varese (Italy)], e-mail: laranocchi@gmail.com; Maresca, A. M. [Dept. of Internal Medicine, Insubria Univ., Ospedale di Circolo e Fondazione Macchi, Varese (Italy); Novario, R. [Dept. of Medical Physics, Insubria Univ., Ospedale di Circolo e Fondazione Macchi, Varese (Italy)

    2013-09-15

    Background: The main causes of renal artery stenosis (RAS) are atherosclerosis and fibromuscular dysplasia. Despite contrast-enhanced magnetic resonance angiography (CE-MRA) being a safe and reliable method for diagnosis of RAS especially in young individuals, recently it has been possible to adopt innovative technologies that do not require paramagnetic contrast agents. Purpose: To assess the accuracy of steady-state free-precession (SSFP) non-contrast-enhanced magnetic resonance angiography (NC-MRA) by using a 1.5 T MR scanner for the detection of renal artery stenosis, in comparison with breath-hold CE-MRA as the reference standard. Material and Methods: Sixty-three patients (33 men, 30 women) with suspected renovascular hypertension (RVHT) were examined by a 1.5T MR scanner; NC-MRA with an electrocardiography (ECG)-gated SSFP sequence was performed in 58.7% (37/63) of patients; in 41.3% (26/63) of patients a respiratory trigger was used in addition to cardiac gating. CE-MRA, with a three-dimensional gradient echo (3D-GRE) T1-weighted sequence, was performed in all patients within the same session. Maximum intensity projection (MIP) image quality, number of renal arteries, and the presence of stenosis were assessed by two observers (independently for NC-MRA and together for CE-MRA). The agreement between NC-MRA and CE-MRA as well as the inter-observer reproducibility were calculated with Bland-Altman plots. Results: MIP image quality was considered better for NC-MRA. NC-MRA identified 143 of 144 (99.3%) arteries detected by CE-MRA (an accessory artery was not identified). Fourteen stenoses were detected by CE-MRA (11 atherosclerotic, 3 dysplastic) with four of 14 (28.5%) significant stenosis. Bland-Altman plot demonstrated an excellent concordance between NC-MRA and CE-MRA; particularly, the reader A evaluated correctly all investigated arteries, while over-estimation of two stenoses occurred for reader B. Regarding NC-MRA, inter-observer agreement was excellent

  18. Preferences of antibiotic use in children less than five in physicians working health centers of primary level in Peru-urban areas of Lima, Peru

    OpenAIRE

    Ecker, Lucie; Instituto de Investigación Nutricional. Lima, Perú Universidad Peruana Cayetano Heredia. Lima, Perú; Ochoa, Theresa J.; Universidad Peruana Cayetano Heredia. Lima, Perú. University of Texas School of Public Health. Houston, Texas, EE. UU. médico infectólogo pediatra.; Vargas, Martha; Fundació Clinic per a la Recerca iomédica, Barcelona, España. doctora en ciencias biológicas.; Del Valle, Luis J.; Departament d’ Enginyeria Química, ETSEIB, Universitat Politécnica de Catalunya. Barcelona, España. doctor en ciencias biológicas.; Ruiz, Joaquim; Barcelona Centre for International Health Research (CRESIB), Hospital Clinic-Universitat de Barcelona. Barcelona, España. doctor en Biología.

    2014-01-01

    Objectives. To describe physicians’ preferences of antibiotic use in children less than 5 years in health centers of primary level in three periurban districts in Lima, Perú. Material and methods. A structured survey was applied to 218 general practitioners from three health networks of Lima. The survey included six typical clinical cases in children under 5 years with questions about antibiotic use: the cases were common cold, pharyngitis, pneumonia, bronchial obstructive syndrome, watery di...

  19. 9 CFR 319.310 - Lima beans with ham in sauce, beans with ham in sauce, beans with bacon in sauce, and similar...

    Science.gov (United States)

    2010-01-01

    ... with ham in sauce, beans with bacon in sauce, and similar products. 319.310 Section 319.310 Animals and....310 Lima beans with ham in sauce, beans with ham in sauce, beans with bacon in sauce, and similar products. “Lima Beans with Ham in Sauce,” “Beans with Ham in Sauce,” “Beans with Bacon in Sauce,”...

  20. Preferences of antibiotic use in children less than five in physicians working health centers of primary level in Peru-urban areas of Lima, Peru

    OpenAIRE

    Ecker, Lucie; Instituto de Investigación Nutricional. Lima, Perú. Universidad Peruana Cayetano Heredia. Lima, Perú. Médico cirujano.; Ochoa, Theresa J.; Universidad Peruana Cayetano Heredia. Lima, Perú. University of Texas School of Public Health, Houston. Texas, Estados Unidos de América. Grupo Peruano de Investigación en Neumococo (GPIN). Lima, Perú. Médico infectólogo pediatra.; Vargas, Martha; Fundació Clinic per a la Recerca iomédica, Barcelona, España. doctora en ciencias biológicas.; Del Valle, Luis J.; Departament d’ Enginyeria Química, ETSEIB, Universitat Politécnica de Catalunya. Barcelona, España. doctor en ciencias biológicas.; Ruiz, Joaquim; Barcelona Centre for International Health Research (CRESIB), Hospital Clinic-Universitat de Barcelona. Barcelona, España. doctor en Biología.

    2014-01-01

    Objectives. To describe physicians’ preferences of antibiotic use in children less than 5 years in health centers of primary level in three periurban districts in Lima, Perú. Material and methods. A structured survey was applied to 218 general practitioners from three health networks of Lima. The survey included six typical clinical cases in children under 5 years with questions about antibiotic use: the cases were common cold, pharyngitis, pneumonia, bronchial obstructive syndrome, watery di...

  1. Influencia de los medios de comunicación y el riesgo de padecer trastornos de la conducta alimentaria en escolares mujeres en Lima, Perú

    OpenAIRE

    Lazo Montoya, Yessenia; Quenaya, Alejandra; Mayta Tristán, Percy; Universidad Peruana de Ciencias Aplicadas (UPC)

    2015-01-01

    Introduction. Eating disorders (EDs) are a public health problem, and their relationship to mass media is still controversial. Objective. To assess whether there is an association between models of body image shown in mass media and the risk of developing EDs among female adolescent students from Lima, Peru. Methodology. Cross-sectional study conducted in three schools located in the district of La Victoria, Lima, Peru. The risk of developing EDs was me...

  2. Estudio de la superficie de limas de endodoncia sometidas a desinfección química mediante microscopia electrónica de barrido

    OpenAIRE

    Navarro Majó, G.; Mateos, M.; Navarro, J.L.; Canalda Sahli, Carlos

    1991-01-01

    Se observaron al microscopio electró nico de barrido 40 limas de endodoncia de acero inoxidable después de ser sometidas a 10 ciclos de desinfección de 10 minutos cada ciclo, sumergidas en diferentes desinfectantes químicos. No se observó corrosión en la superficie de las limas en las circunstancias en que se realizó ese estudio.

  3. Case Report of Bullous Pemphigoid following Fundus Fluorescein Angiography

    Directory of Open Access Journals (Sweden)

    Goktug Demirci

    2010-05-01

    Full Text Available Purpose: To report a first case of bullous pemphigoid (BP following intravenous fluorescein for fundus angiography. Clinical Features: A 70-year-old male patient was admitted to the intensive care unit with BP and sepsis. He reported a history of fundus fluorescein angiography with a pre-diagnosis of senile macular degeneration 2 months prior to presentation. At that time, fluorescein extravasated at the antecubital region. Following the procedure, pruritus and erythema began at the wrists bilaterally, and quickly spread to the entire body. The patient also reported a history of allergy to human albumin solution (Plamasteril®; Abbott 15 years before, during bypass surgery. On dermatologic examination, erythematous patches were present on the scalp, chest and anogenital region. Vesicles and bullous lesions were present on upper and lower extremities. On day 2 of hospitalization, tense bullae appeared on the upper and lower extremities. The patient was treated with oral methylprednisolone 48 mg (Prednol®; Mustafa Nevzat, topical clobetasol dipropionate 0.05% cream (Dermovate®; Glaxo SmithKline, and topical 4% urea lotion (Excipial Lipo®; Orva for presumptive bullous pemphigoid. Skin punch biopsy provided tissue for histopathology, direct immunofluorescence examination, and salt extraction, which were all consistent with BP. After 1 month, the patient was transferred to the intensive care unit with sepsis secondary to urinary tract infection; he died 2 weeks later from sepsis and cardiac failure. Conclusions: To our knowledge, this is the first reported case of BP following fundus fluorescein angiography in a patient with known human albumin solution allergy. Consideration should be made to avoid fluorescein angiography, change administration route, or premedicate with antihistamines in patients with known human albumin solution allergy. The association between fundus fluorescein angiography and BP should be further investigated.

  4. Angiographic leakage of polypoidal choroidal vasculopathy on indocyanine angiography

    Institute of Scientific and Technical Information of China (English)

    ZUO Cheng-guo; WEN Feng; HUANG Shi-zhou; LUO Guang-wei; YAN Hong; WU Wei-ju; WU De-zheng

    2010-01-01

    Background There is no detailed report about the angiographic leakage of polypoidal choroidal vasculopathy (PCV)lesions on indocyanine green (ICG) angiography. This study aimed to investigate the angiographic leakage of polypoidal lesions in PCV on ICG angiography.Methods One hundred and forty-four eyes of 137 patients diagnosed as PCV were prospectively observed. Fundus examination, fluorescein angiography, and ICG angiography were performed. Leakage of polypoidal lesions and clinical features were recorded according to the angiograms.Results In all 144 eyes, 110 eyes showed angiographic leakage (leakage group) on ICG angiography and three subtypes of leakage group were noted, which were polypoidal dilations leakage (47 eyes, 42.7%), branching vascular networks leakage (14 eyes, 12.7%) and leakage of both (49 eyes, 44.5%). The other 34 eyes showed regression of polypoidal lesions (regression group). In leakage group, the rates of pigment epithelial detachment (PED), best corrected visual acuity (BCVA) <0.1 and old subretinal hemorrhages were 56.4% (62 eyes), 19.1% (21 eyes), and 4.6% (5 eyes)respectively, compared with 8.8% (3 eyes), 50% (17 eyes) and 38.2% (13 eyes) of regression group (P <0.001). The history of regression group was significantly longer (P <0.001).Conclusions Angiographic leakage and regression can be observed in PCV lesions. Leakage of both polypoidal dilations and branching vascular networks is the most common subtype in leakage group. PCV in leakage group is more likely to be related to PED, better BCVA and shorter history, while PCV regression group tends to relevant to old subretinal hemorrhage, worse BCVA and longer history. This may reflect that the former is active or in the early course while the later is resting or in the late phase of PCV.

  5. Accuracy of 64-slice CT angiography for the detection of functionally relevant coronary stenoses as assessed with myocardial perfusion SPECT

    Energy Technology Data Exchange (ETDEWEB)

    Gaemperli, Oliver; Schepis, Tiziano; Koepfli, Pascal; Valenta, Ines; Soyka, Jan [University Hospital Zurich NUK C 40, Nuclear Cardiology, Cardiovascular Center, Zurich (Switzerland); Leschka, Sebastian; Desbiolles, Lotus; Husmann, Lars; Alkadhi, Hatem [University Hospital Zurich, Institute of Diagnostic Radiology, Zurich (Switzerland); Kaufmann, Philipp A. [University Hospital Zurich NUK C 40, Nuclear Cardiology, Cardiovascular Center, Zurich (Switzerland); University of Zurich, Zurich Center for Integrative Human Physiology (CIHP), Zurich (Switzerland)

    2007-08-15

    CT angiography (CTA) offers a valuable alternative for the diagnosis of CAD but its value in the detection of functionally relevant coronary stenoses remains uncertain. We prospectively compared the accuracy of 64-slice CTA with that of myocardial perfusion imaging (MPI) using {sup 99m}Tc-tetrofosmin-SPECT as the gold standard for the detection of functionally relevant coronary artery disease (CAD). MPI and 64-slice CT were performed in 100 consecutive patients. CTA lesions were analysed quantitatively and area stenoses {>=}50% and {>=}75% were compared with the MPI findings. In 23 patients, MPI perfusion defects were found (12 reversible, 13 fixed). A total of 399 coronary arteries and 1,386 segments was analysed. Eighty-four segments (6.1%) in 23 coronary arteries (5.8%) of nine patients (9.0%) were excluded owing to insufficient image quality. In the remaining 1,302 segments, quantitative CTA revealed stenoses {>=}50% in 57 of 376 coronary arteries (15.2%) and stenoses {>=}75% in 32 (8.5%) coronary arteries. Using a cut-off at {>=}75% area stenosis, CTA yielded the following sensitivity, specificity, negative (NPV) and positive predictive value (PPV), and accuracy for the detection of any (fixed and reversible) MPI defect: by patient, 75%, 90%, 93%, 68% and 87%, respectively; by artery, 76%, 95%, 99%, 50% and 94%, respectively. Sixty-four-slice CTA is a reliable tool to rule out functionally relevant CAD in a non-selected population with an intermediate pretest likelihood of disease. However, an abnormal CTA is a poor predictor of ischaemia. (orig.)

  6. Procedural success of CTO recanalization: Comparison of the J-CTO score determined by coronary CT angiography to invasive angiography.

    Science.gov (United States)

    Li, Yuehua; Xu, Nan; Zhang, Jiayin; Li, Minghua; Lu, Zhigang; Wei, Meng; Lu, Bin; Zhang, Yang

    2015-01-01

    The J-CTO score is based on invasive angiography, combines several parameters of chronic total coronary occlusions (CTO), and is well established to predict the likelihood of success of percutaneous recanalization. The purpose of this study was to evaluate and validate a J-CTOCT score derived from coronary computed tomography angiography (coronary CTA). Between April 2011 and December 2014, 159 consecutive patients were retrospectively included. All had at least one CTO in invasive angiography, had coronary CTA performed at an interval of no more than one week from invasive angiography, and had an attempt at percutaneous coronary intervention (PCI) following coronary CTA In parallel to the angiographic J-CTO score, the J-CTOCT score was determined by awarding one point each for a blunt vessel stump, bending > 45°, occlusion length ≥ 20 mm, presence of calcium covering > 50% of any vessel cross-section within the occlusion, or a previously failed attempt at PCI. a. Both scores were compared regarding their ability to predict successful recanalization. A total of 171 CTO lesions were analyzed. Intraobserver (k = 0.814, p CTO score (mean: 1.8 ± 1.3, r = 0.856, p CTO score (area under curve: 0.868, p CTO score. . Copyright © 2015 Society of Cardiovascular Computed Tomography. Published by Elsevier Inc. All rights reserved.

  7. NIVELES DE TRATAMIENTO Y CONTROL DE LA HIPERTENSIÓN ARTERIAL EN EL POLICLÍNICO TURCIOS LIMA / Treatment levels and hypertension control at the Turcios Lima polyclinic

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    Ángel Y. Rodríguez Navarro

    2012-10-01

    Full Text Available ResumenIntroducción y objetivo: El control farmacológico de la hipertensión arterial es un componente esencial en la estrategia para el control de las enfermedades cardiovasculares. El propósito de esta investigación fue determinar la tasa actual de control de la hipertensión arterial en la población que recibe atención médica en el consultorio médico N° 18 perteneciente al Policlínico Turcios Lima, del municipio de Pinar del Río. Método: Estudio descriptivo y transversal; el universo estuvo constituido por 1.589 pacientes mayores de 15 años de edad, y la muestra, por 504 pacientes seleccionados por muestreo probabilístico estratificado. Resultados: Se obtuvo una prevalencia del 21,2 % de hipertensión arterial, mayor en el sexo masculino; se calculó una tasa de control de 45 por cada 100 pacientes bajo tratamiento terapéutico y un porcentaje de control del 65,3 % entre los tratados. El 42,3 % de la población presenta un riesgo cardiovascular moderado de sufrir un accidente cardiovascular en los próximos 10 años. Conclusiones: Se obtuvo un nivel de control de la hipertensión arterial más elevado que lo notificado previamente por estudios poblacionales realizados en otros países, esta enfermedad es mejor controlada en las pacientes femeninas. En cuanto al riesgo cardiovascular global, predominó la categoría de moderado seguida por la de bajo riesgo, sin desestimar la población clasificada como de alto riesgo. / Introduction and Objectives: Pharmacological control of hypertension is an essential component in the strategy for the control of cardiovascular diseases. The purpose of this research was to determine the current control rate of hypertension in the population receiving care at the medical office N° 18 belonging to Turcios Lima Polyclinic, in Pinar del Rio municipality. Method: A descriptive and cross−sectional study was performed, the population consisted of 1589 patients over 15 years old, and the sample of

  8. Characterisation of PDO olive oil Chianti Classico by non-selective (UV-visible, NIR and MIR spectroscopy) and selective (fatty acid composition) analytical techniques.

    Science.gov (United States)

    Casale, M; Oliveri, P; Casolino, C; Sinelli, N; Zunin, P; Armanino, C; Forina, M; Lanteri, S

    2012-01-27

    An authentication study of the Italian PDO (protected designation of origin) extra virgin olive oil Chianti Classico was performed; UV-visible (UV-vis), Near-Infrared (NIR) and Mid-Infrared (MIR) spectroscopies were applied to a set of samples representative of the whole Chianti Classico production area. The non-selective signals (fingerprints) provided by the three spectroscopic techniques were utilised both individually and jointly, after fusion of the respective profile vectors, in order to build a model for the Chianti Classico PDO olive oil. Moreover, these results were compared with those obtained by the gas chromatographic determination of the fatty acids composition. In order to characterise the olive oils produced in the Chianti Classico PDO area, UNEQ (unequal class models) and SIMCA (soft independent modelling of class analogy) were employed both on the MIR, NIR and UV-vis spectra, individually and jointly, and on the fatty acid composition. Finally, PLS (partial least square) regression was applied on the UV-vis, NIR and MIR spectra, in order to predict the content of oleic and linoleic acids in the extra virgin olive oils. UNEQ, SIMCA and PLS were performed after selection of the relevant predictors, in order to increase the efficiency of both classification and regression models. The non-selective information obtained from UV-vis, NIR and MIR spectroscopy allowed to build reliable models for checking the authenticity of the Italian PDO extra virgin olive oil Chianti Classico. Copyright © 2011 Elsevier B.V. All rights reserved.

  9. Helmintos parásitos de Telmatobius jelskii (Peters (Anura, Leptodactylidae de Lima, Perú Helminth parasites of Telmatobius jelskii (Peters (Anura, Leptodactylidae from Lima, Peru

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    José Iannacone

    2003-03-01

    Full Text Available A quantitative research of parasites of 67 endemic frog Telmatobius jelskii (Peters, 1863 collected from Laguna Tucto (76°46'11"W, 10°39'11"S where Pativilca River is originated was conducted, and was located in the Province of Oyon, high Andean area from the Department of Lima, Peru during September-October 2000. Of the frogs collected, 23 were females and 44 males. Male showed a length between 5.2 ± 0.5 cm (range = 4.0-6.4 cm and female between 5.5 ± 1 cm (range = 3.9-7.6 cm and were not found differences between both sexes. 86 specimens of parasite and three species in total during all the survey were collected. 28 hosts were infected (41.8%. twenty-five hosts (37.3% showed infection with one parasite species, and three (4.5% had two parasite species. Three parasite species were found: Gorgoderina parvicava Travassos, 1922 (Digenea: Gorgoderidae (Prevalence = 40.3%; mean Intensity = 3.1; mean abundance = 1.2, Cylindrotaenia americana Jewell, 1916 (Cestoda: Proteocephalidae (Prevalence = 3%; mean Intensity = 1; mean abundance = 0.02 and Aplectana hylambatis (Baylis, 1927 (Nematoda: Cosmocercidae (Prevalence = 3%; mean Intensity = 1; mean abundance = 0.02. G. parvicava had an overdispersed distribution and was the dominant species. An effect of sex and length with prevalence and mean abundance of infection of G. parvicava was not found. The relationship of helminthes parasites with T. jelskii is discussed. G. parvicava and C. americana are new records for T. jelskii.

  10. The effect of changes in visibility and price on fruit purchasing at a university cafeteria in Lima, Peru.

    Science.gov (United States)

    Cárdenas, María Kathia; Benziger, Catherine P; Pillay, Timesh D; Miranda, J Jaime

    2015-10-01

    To determine the effect of increasing fruit visibility, adding information and lowering price on fruit purchasing at a university cafeteria in Lima, Peru. Quasi-experimental pilot study of a three-phase stepped intervention. In Phase 1, fruit was displayed >3 m from the point of purchase with no additional information. Phase 2 consisted in displaying the fruit near the point of purchase with added health and price information. Phase 3 added a 33% price reduction. The duration of each phase was 3 weeks and phases were separated by 2-week breaks. Primary outcomes were total pieces of fruit and number of meals sold daily. A university cafeteria in Lima, Peru. Approximately 150 people, students and non-student adults, who purchased food daily. Twelve students participated in post-intervention interviews. Fruit purchasing doubled from Phase 1 to Phase 3 (Pcafeteria, especially in males and non-student adults.

  11. Evaluasi Program Layanan Bimbingan Karir dengan Model Kirkpatrick di SMK Negeri 1 Kecamatan Guguak Kabupaten Lima Puluh Kota

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    Yasmiri

    2017-04-01

    Full Text Available Career guidance is expected to help students to establish students career choice to be a professional in the future. However, current conditions and the fact in the area is not as expected. This study aimed to evaluate how Reaction, Learning, Behavior, and Result on the Career Guidance program at SMK Negeri 1 Kecamatan Guguak Kabupaten Lima Puluh Kota. The kind of this research is an evaluation study with the program evaluation of Kirkpatrick model that is a Reaction component, Learning, Behavior, and Result. The method used is a mixed method. Quantitative data were collected through questionnaire, while the qualitative data collected through interview, observation, and documentation. It can be concluded that career guidance services at SMK Negeri 1 Kecamatan Guguak Kabupaten Lima Puluh Kota is good enough category, Reaction and Learning component still needs to be improved and more attention.

  12. Effects of the physical activity and socioeconomic status in overweight and obesity in school students, East Lima 2005

    OpenAIRE

    Bustamante V, Alcibíades; Laboratorio de Cineantropometria e Estatística Aplicada, Faculdade de Desporto,Universidade do Porto. Porto, Portugal. Universidad Nacional de Educación “Enrique Guzmán y Valle”. Lima, Perú. Profesor de Educación Física. Maestro en Desarrollo Motor.; Seabra, André F; Laboratorio de Cineantropometria e Estatística Aplicada, Faculdade de Desporto,Universidade do Porto. Porto, Portugal. Profesor de Educación Física. Doctor en Ciencias del Deporte.; Garganta, Rui M; Laboratorio de Cineantropometria e Estatística Aplicada, Faculdade de Desporto,Universidade do Porto. Porto, Portugal. Profesor de Educación Física. Doctor en Ciencias del Deporte.; Maia, José A; Laboratorio de Cineantropometria e Estatística Aplicada, Faculdade de Desporto,Universidade do Porto. Porto, Portugal. Profesor de Educación Física. Doctor en Antropología del Deporte.

    2007-01-01

    Objectives: To document the prevalence of overweight and obesity, as well as to determine the influence of socioeconomic status and physical activity levels in body mass index (BMI) of school students aged 6 to 11 years. Material and methods: Be evaluated 4191 children of seven educational institutions of East Lima. Overweight and obesity were assessed by BMI, physical activity levels were evaluated from a questionnaire developed by Godin and Shephard, and for the characterization of soci...

  13. 5S implementation of perception to improve quality culture microenterprises apparel textiles in Northern Cone of Lima

    OpenAIRE

    Tinoco Gómez, Oscar; Universidad Nacional Mayor de San Marcos; Tinoco Ángeles, Félix; Universidad Nacional Mayor de San Marcos; Moscoso Huaira, Elvis; Universidad Nacional Mayor de San Marcos

    2016-01-01

    The research, conducted on a microtextile manufacturing workshop allowed the approach of university life with the reality of micro enterprises in the Northern Cone of Lima. First diagnosis microenterprise is made, both in terms of production process and commercial. A workshop was found whose operations are conducted in a relatively small space, without corresponding data sheets. The implementation of 5S had the active participation of the owner and staff of the micro enterprise, the same that...

  14. Epidemiology of tobacco use and dependence in adults in a poor peri-urban community in Lima, Peru

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    Weygandt Paul

    2012-03-01

    Full Text Available Abstract Background Tobacco smoking is an important public health concern worldwide leading to both chronic disease and early death. In Latin America, smoking prevalence is estimated at approximately 30% and prior studies suggest that the prevalence in Peru is 22% to 38%. We sought to determine the prevalence of daily smoking in a poor peri-urban community in Lima, Peru. Methods We conducted a cross-sectional survey in a random sample of adults ≥40 years of age living in Pampas de San Juan de Miraflores, Lima, Peru. We asked participants to respond to a survey that included questions on sociodemographics, tobacco use and dependence. Results We enrolled 316 participants. Average monthly household income was ≤ 400 USD and nearly all homes had running water, sewage, and electricity. Most individuals had not completed high school. Smoking prevalence was 16% overall, yet daily smoking prevalence was 1.9%. Former daily smokers comprised 3.8% of current nonsmokers and 9.1% current occasional smokers. Average scores for the Fagerstrom Test for Nicotine Dependence for daily smokers and occasional smokers were 1.5 and 0, respectively. Conclusions Daily use of tobacco is uncommon among adults in peri-urban communities of Lima, Peru, unlike their counterparts in Lima and other Latin American capital cities. Tobacco dependence is also low. Hence, efforts aimed at primary prevention are of utmost importance in these communities. This study provides an accurate baseline using an internationally recognized assessment tool (Global Adult Tobacco Survey, allowing for accurate assessment of tobacco control interventions over time.

  15. Factors associated to cervical lesions or presence of human papiloma virus in two populations of students from Lima

    OpenAIRE

    Valderrama C, María; Unidad de Epidemiología ETS y VIH, Facultad de Salud Pública, Universidad Peruana Cayetano Heredia. Lima, Perú. Obstetriz.; Campos, Francisco E.; Hospital Nacional Docente Madre Niño San Bartolomé. Lima, Perú. médico infectólogo pediatra.; Cárcamo, César P; Unidad de Epidemiología ETS y VIH, Facultad de Salud Pública, Universidad Peruana Cayetano Heredia. Lima, Perú. Departamento de Microbiología, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia. Médico Epidemiólogo. Médico Infectólogo.; García, Patricia J; Unidad de Epidemiología ETS y VIH, Facultad de Salud Pública, Universidad Peruana Cayetano Heredia. Lima, Perú. Instituto Nacional de Salud. Lima, Perú. Médico Epidemiólogo. Médico Infectólogo.

    2007-01-01

    Objectives: To determine the prevalence and factors associated with cervical lesions or presence of human papilloma virus (HPV) in women students with higher education from 18 to 26 years. Materials and methods: A cross-sectional study in students from two universities and a technical institute in Lima were carried out from August through December 2001. We surveyed women and collected cervical samples for PAP smear and HPV DNA detection for the 6, 11, 16 and 18 strains using polymerase ch...

  16. Breastfeeding and breast cancer: a case-control study in patients at Arzobispo Loayza National Hospital. Lima - Peru

    OpenAIRE

    Rojas Camayo, José; Facultad de Medicina de San Fernando, Universidad Nacional Mayor de San Marcos (UNMSM). Lima, Perú

    2013-01-01

    Introduction: Breast cancer is a global public health problem with incidence increasing in the world. Breastfeeding has been shown to be a protective factor, but evaluation in Latin American populations has scant. Objective: To evaluate the effect of breastfeeding on breast cancer developing risk in a Peruvian population. Design: A case-control study. Setting: Departments of Medical Oncology and Radiology, section of Mammography, at Arzobispo Loayza National Hospital, Lima - Peru. Participant...

  17. Perbandingan Lima Garis Referensi Dari Posisi Horizontal Bibir Atas Dan Bibir Bawah Pada Mahasiswa FKG Dan FT USU Suku Batak

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    Lokanata, Shieny

    2014-01-01

    Fakultas Kedokteran Gigi Departemen Ortodonti Tahun 2013 Shieny Lokanata Perbandingan Lima Garis Referensi dari Posisi Horizontal Bibir Atas dan Bibir Bawah pada Mahasiswa FKG dan FT USU Suku Batak x + 37 halaman Kalangan modern telah menempatkan penampilan fisik sebagai sesuatu yang sangat diutamakan sehingga ilmu ortodonsia tidak hanya terfokus pada susunan gigi dan rahang tetapi juga pada estetis wajah yang dipengaruhi jaringan lunak individu. Bibir merupakan ...

  18. Characteristics of the bological cycle of Lutzomyia evandroi Costa Lima & Antunes, 1936 (Diptera: Psychodidae) under experimental conditions

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    Maria de Fátima Freire de Melo Ximenes; Janaína Cunha Maciel; Selma Maria Bezerra Jerônimo

    2001-01-01

    Lutzomyia evandroi Costa Lima and Antunes, 1936 is found in Rio Grande do Norte, northeastern Brazil, in areas of visceral and mucocutaneous leishmaniasis and follows the same geographic distribution of L. longipalpis. The biological cycle, oviposition, morphological and behavioral characteristics of the species were studied under experimental conditions. The average number of eggs per wild caught female varied from 21 to 50 eggs along the year, with a peak occurring between January and March...

  19. Ciudad y patrones de asentamiento: Estructura urbana y tipologización para el caso de Lima

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    Wiley Ludeña

    2006-05-01

    Full Text Available La conversión de Lima en objeto de indagación histórica se produjo desde mediados del siglo XIX bajo la forma de crónica literaria o descripción positivista de la realidad. En cambio, la transformación de la metrópoli limeña en objeto de investigación con fines de modelamiento teórico de la realidad es apenas un fenómeno de los últimos 50 años. El presente texto se ocupa del registro de todas aquellas propuestas formuladas con el objetivo de revelar algunas constantes y leyes de formación sobre el crecimiento y la estructura socio-espacial de la ciudad de Lima. Se definen las tendencias básicas y ámbitos de referencia en la ciudadLima’s conversion in an object of historic inquiry was produced in the middle of the 19th century, under the form of literary chronicles or positivist descriptions of reality. Instead the transformation of Lima’s metropolis in an object of investigation aiming for the theoretical modeling of reality is barely a phenomenon of the last 50 years. The following text deals with the proposals of records formulated in order to reveal some constants and formation laws concerning the growth and socio-spatial structure of Lima city. The basic tendencies and aspects of reference concerning the city are defined

  20. Diálogo cultural e intercambios como experiencia de Buen Vivir. La suma causai en Lima Norte

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    Teresa Cañedo-Arguelles

    2014-02-01

    Full Text Available Suma Causai, quechuan, or Suma Camaña, aymaran, mean something similar to “harmony among neighbors and with nature”. This is a similar concept to that of “buen vivir”, which actually has re-inspired by the Andean context where the principal forums for reflection on the matter are arising. This article adds to these forums, contributing an analysis about different initiatives for development that are appearing in the northern districts of Lima, which are a product of the interaction between the migrant andean population and the institutional, social and economic environment of the Peruvian capital. It refers to the initiatives that the migrants are taking to establish themselves within the economic and cultural life of Lima without having to renounce their traditions and emotional references. This interior cultural heritage based on values, customs, and gestures, which has been overflowing in its new vital urban environment contribute to generate wealth, topple prejudice, empathy between the new and old urban society of Lima, at the same time that are making a notable influence in the rebuilding of the own Andean culture.