oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Search Results: 1 - 10 of 1646 matches for " Antonieta;Rosales "
All listed articles are free for downloading (OA Articles)
Page 1 /1646
Display every page Item
Geographic distribution and morphometric differentiation of Triatoma nitida usinger 1939 (Hemiptera: Reduviidae: Triatominae) in Guatemala
Monroy Carlota,Bustamante Dulce María,Rodas Antonieta,Rosales Regina
Memórias do Instituto Oswaldo Cruz , 2003,
Abstract: Triatoma nitida was found in 14 (0.4%) out of 3,726 houses located in six departments across Guatemala, which were surveyed from 1994 to 1998 by the man-hour collection method. Compared to previous information, the distribution of T. nitida in Guatemala has increased from five to nine departments; the species is present in mild climates at altitudes from 960 to 1,500 m. Fourteen percent of the intradomestic T. nitida were infected with Trypanosoma cruzi. The species was often found in conjunction with other triatomines (T. dimidiata and Rhodnius prolixus). The domestic and peridomestic presence of T. nitida in Guatemala was rare, but occasionally this species was colonizing human-made constructions. T. nitida appears to have a low importance as Chagas disease vector in Guatemala, as indicated by its scarce presence in the domestic habitats and defecation patterns. However, it clearly has potential to become a Chagas vector so we recommend an on-going study of the intradomestic presence of T. nitida following the control programs in Guatemala. Morphometric analysis of 47 T. nitida males from three localities showed quantitative differences between the populations, which indicates that geographic distance is an important factor in the structuring of T. nitida populations.
Epidemiology of Chagas disease in Guatemala: infection rate of Triatoma dimidiata, Triatoma nitida and Rhodnius prolixus (Hemiptera, Reduviidae) with Trypanosoma cruzi and Trypanosoma rangeli (Kinetoplastida, Trypanosomatidae)
Monroy Carlota,Rodas Antonieta,Mejía Mildred,Rosales Regina
Memórias do Instituto Oswaldo Cruz , 2003,
Abstract: A five-year domiciliary collection in the 22 departments of Guatemala showed that out of 4,128 triatomines collected, 1,675 were Triatoma dimidiata (Latreille, 1811), 2,344 were Rhodnius prolixus Stal 1859, and only 109 were T. nitida Usinger 1939. The Chagas disease parasite, Trypanosoma cruzi, was found in all three species. Their natural infection rates were similar in the first two species (20.6%; 19.1%) and slightly lower in T. nitida(13.8%). However there was no significant difference in the infection rates in the three species (p = 0.131). T. dimidiata males have higher infection rates than females (p = 0.030), whereas for R. prolixus there is no difference in infection rates between males and females (p = 0.114). The sex ratios for all three species were significantly skewed. More males than females were found inside houses for T. dimidiata (p < 0.0001) and T. nitida (p = 0.011); a different pattern was seen for R. prolixus (p = 0.037) where more females were found. Sex ratio is proposed as an index to show the mobility of T. dimidiata in different populations. T. dimidiata is widely distributed in the country, and is also the main vector in at least ten departments, but R. prolixus with higher vectorial capacity is an important vector in at least two departments.
Geographic distribution and morphometric differentiation of Triatoma nitida usinger 1939 (Hemiptera: Reduviidae: Triatominae) in Guatemala
Monroy, Carlota;Bustamante, Dulce María;Rodas, Antonieta;Rosales, Regina;Mejía, Mildred;Tabaru, Yuichiro;
Memórias do Instituto Oswaldo Cruz , 2003, DOI: 10.1590/S0074-02762003000100006
Abstract: triatoma nitida was found in 14 (0.4%) out of 3,726 houses located in six departments across guatemala, which were surveyed from 1994 to 1998 by the man-hour collection method. compared to previous information, the distribution of t. nitida in guatemala has increased from five to nine departments; the species is present in mild climates at altitudes from 960 to 1,500 m. fourteen percent of the intradomestic t. nitida were infected with trypanosoma cruzi. the species was often found in conjunction with other triatomines (t. dimidiata and rhodnius prolixus). the domestic and peridomestic presence of t. nitida in guatemala was rare, but occasionally this species was colonizing human-made constructions. t. nitida appears to have a low importance as chagas disease vector in guatemala, as indicated by its scarce presence in the domestic habitats and defecation patterns. however, it clearly has potential to become a chagas vector so we recommend an on-going study of the intradomestic presence of t. nitida following the control programs in guatemala. morphometric analysis of 47 t. nitida males from three localities showed quantitative differences between the populations, which indicates that geographic distance is an important factor in the structuring of t. nitida populations.
Epidemiology of Chagas disease in Guatemala: infection rate of Triatoma dimidiata, Triatoma nitida and Rhodnius prolixus (Hemiptera, Reduviidae) with Trypanosoma cruzi and Trypanosoma rangeli (Kinetoplastida, Trypanosomatidae)
Monroy, Carlota;Rodas, Antonieta;Mejía, Mildred;Rosales, Regina;Tabaru, Yuichiro;
Memórias do Instituto Oswaldo Cruz , 2003, DOI: 10.1590/S0074-02762003000300003
Abstract: a five-year domiciliary collection in the 22 departments of guatemala showed that out of 4,128 triatomines collected, 1,675 were triatoma dimidiata (latreille, 1811), 2,344 were rhodnius prolixus stal 1859, and only 109 were t. nitida usinger 1939. the chagas disease parasite, trypanosoma cruzi, was found in all three species. their natural infection rates were similar in the first two species (20.6%; 19.1%) and slightly lower in t. nitida(13.8%). however there was no significant difference in the infection rates in the three species (p = 0.131). t. dimidiata males have higher infection rates than females (p = 0.030), whereas for r. prolixus there is no difference in infection rates between males and females (p = 0.114). the sex ratios for all three species were significantly skewed. more males than females were found inside houses for t. dimidiata (p < 0.0001) and t. nitida (p = 0.011); a different pattern was seen for r. prolixus (p = 0.037) where more females were found. sex ratio is proposed as an index to show the mobility of t. dimidiata in different populations. t. dimidiata is widely distributed in the country, and is also the main vector in at least ten departments, but r. prolixus with higher vectorial capacity is an important vector in at least two departments.
Soil and Leaf Micronutrient Composition in Contrasting Habitats in Podzolized Sands of the Amazon Region  [PDF]
María Antonieta Sobrado
American Journal of Plant Sciences (AJPS) , 2013, DOI: 10.4236/ajps.2013.410235
Abstract:

Plant macronutrient distribution in podzolized sands of the Amazon caatinga has received attention in several studies; however, the distribution of micronutrients has not been assessed. Soil micronutrient availability has been hypothesized to reflect contrasting habitat characteristics as well as fundamental differences in substrate, and leaf micronutrient composition may reflect the macronutrient content needed to maintain balance for leaf cell functions. In this study, soil and leaf samples were obtained in a toposequence (valley, slope, and mound). Available soil micro- and macronutrients as well as total leaf content were measured by inductively coupled plasma-atomic emission spectrometer and mass spectroscopy. Soil Zn (<1.41 mg·kg-1) and B (<0.31 mg·kg-1) as well as Cu (<1.33 mg·kg-1) levels were very low. Soil Mn was low in the valleys and slopes (0.62-0.87 mg·kg-1), but higher in the mound (6.59 mg·kg-1). Soil Fe (11.48-21.13 mg·kg-1) was well above the critical level in all of

La anticoncepción de emergencia en América Latina y el Caribe
Martin,Antonieta;
Revista Panamericana de Salud Pública , 2004, DOI: 10.1590/S1020-49892004001200012
Abstract: introducing the post-coital birth control method in the family-planning services of latin american countries has not been an easy task. catholic and other conservative groups with great influence in the political arena have time and again stopped it from being adopted as an alternative method and have even succeeded in having it removed from official directives after formal acceptance by health authorities. the main objections are triggered by the erroneous supposition that "emergency contraception" pills are abortifacients. however, a large dose of cultural discrimination against women seems also to be involved. it has been extremely difficult to register dedicated products and make them available in drugstores and even more difficult to distribute them without charge at public health centers. they are hard to find, expensive, and unavailable to adolescents at risk for unwanted pregnancies and to most low-income women, especially in rural areas. dissemination of appropriate information has been scarce and slow and there are still great numbers of people that do not understand how or why the method works. brazil has been the only exception, as its open society has readily accepted this method of contraception. the latin american consortium on emergency contraception founded in the year 2000 and its regional conference two years later had an important impact on the situation, as they encouraged the coordination of efforts by governmental and nongovernmental entities with those of women's groups to fight for sexual and reproductive rights. a number of studies have shown that the more people learn about emergency contraception, the more they find it acceptable and necessary, and radio spots and other media techniques have begun to educate the public about this matter. in spite of the many difficulties encountered, in the last few years several countries have made strides to include this method in their public health guidelines. however, because of the powerful forces a
Paráfrases lexicais: fonte produtiva para defini es e designa es
Antonieta Laface
Alfa : Revista de Linguística , 2001,
Abstract: Trata-se de quest o relativa à pedagogia-ensino do léxico, objeto de estudo e de discuss o nos últimos anos. Considera-se a restri o do vocabulário do estudante como uma das causas do seu mau desempenho escolar. Discutem-se, no presente artigo, atividades com a palavra, encontradas em livros didáticos diversos. Sugere-se um trabalho pedagógico de leitura e de reda o, centrado em paráfrases lexicais, no plano da sinonímia e da parassinonímia, fonte produtiva para defini o e designa es de objeto a ser descrito em contexto discursivo. A análise de um texto de Mill r Fernandes torna-se instrumento para demonstrar a validade deste tipo de trabalho sugerido - uma contribui o para melhor desempenho do estudante.
Aquisi o e amplia o do vocabulário acadêmico - contexto ideológico cultural
Antonieta Laface
Alfa : Revista de Linguística , 2001,
Abstract: Trata-se de uma reflex o sobre o vocabulário de áreas disciplinares, estudadas na escola do segundo grau e desta para a universidade. Com base nos princípios teóricos da lexicologia e da defini o terminológica, pretende-se mostrar a necessidade de sistematiza o de atividades pedagógicas, orientadas para contextos ideológicos. No exemplo dado, foram tomados os critérios de tempo e lugar, trabalhados na área de História, para demonstrar como as defini es podem ser veiculadas no universo de conhecimento.
A orianidade Revisitada: Novas Posturas
Antonieta Costa
Brathair , 2010,
Abstract: The role that the mentality of an era (understood as social thought) has on the world vision and in the attitudes of human communities, in what concerns the representations of the world, is particularly crucial in determining a culture in formation. That might have been the Azorean case. For the understanding of the Azorean culture, it will therefore be necessary to be aware of the basic factors of the mentality of the first quarter of the 15th century, besides the social representations characteristic of each group of settlers. Such an assemblage of factors formed the "Founder Myth", from which standout some marks common to the "Celtic culture", likewise the priority of the spiritual over the temporal.
Energizing Social Interactions at Work: An Exploration of Relationships that Generate Employee and Organizational Thriving  [PDF]
Robert M. Rosales
Open Journal of Social Sciences (JSS) , 2016, DOI: 10.4236/jss.2016.49004
Abstract:
A company’s greatest asset is its people provided they are fully engaged. In our increa-singly service-based economies, social relationships and swift coordination among employees are the means by which a lot of work gets done. Thus, whether organiza-tions and their employees flourish or languish largely depends on the quality of the so-cial connections they nurture. The quality of the workplace connections can be defined as life giving (high quality) or life depleting (low quality). Positive social interactions facilitate organizational learning, cooperation, effectiveness, and employee loyalty, among many other desirable outcomes. High-quality connections are brief, mutually beneficial, and dynamic dyadic interactions, which have the power to energize people with vital resources to do their work well. Positive psychology and positive organizational scholarship—the science of how people and organizations flourish—provides us with tools that can help bring about high-quality connections. This paper defines high-quality connections at work, examines the benefits of high- quality connections, and provides a framework for building high-quality connections. The paper shows that high-quality connections are a pathway to build individual and organizational flourishing.
Page 1 /1646
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.