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Sökning: Nicaragua > (2005-2009)

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11.
  • Mendoza, Jose Alfredo, et al. (författare)
  • Aquifer interactions with a polluted mountain river of Nicaragua
  • 2008
  • Ingår i: Hydrological Processes. - : Wiley. - 1099-1085 .- 0885-6087. ; 22:13, s. 2264-2273
  • Tidskriftsartikel (refereegranskat)abstract
    • The interactions between a stream and nearby shallow aquifers were investigated in a mountain basin being polluted by mercury released during mining in central Nicaragua. Hourly data series of water levels and temperatures were analysed using cross-correlation. Resistivity imaging was used to map the subsurface and to complement the hydrological data interpretation. The results show the complex hydrogeological conditions that characterize the region, with weathering and fractured rock as main contributors to groundwater transport. The resistivity images suggest the presence of two vertical dykes perpendicular to the stream, and zones rich in clay. The data series indicate a rapid response from the aquifers to recharge events, followed by immediate discharge on a yearly basis. Furthermore, alternating periods of stream infiltration and aquifer discharge were identified. This work demonstrates that surface water pollution is a threat to groundwater quality in the area.
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12.
  • Herrera Rodríguez, Andrés, 1966- (författare)
  • Heaven can wait : studies on suicidal behaviour among young people in Nicaragua
  • 2006
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • In developed countries, suicidal behaviour is recognised as a significant public health problem among young people, but there are few studies from developing countries on this subject. The present thesis aims at estimating the extent of the problem and at exploring factors related to suicidal behaviour among young people in a developing country, Nicaragua, using a combined quantitative and qualitative approach. Three studies were conducted between 1999 and 2006. In the first study, all hospital admitted suicide attempt cases in the area of León were assessed over a three year period. Secondly, a qualitative study using individual in-depth interviews was conducted with eight girls aged between 12 and 19 admitted to hospital after attempting suicide. Thirdly, a study using the Attitudes Towards Suicides (ATTS) questionnaire was conducted in a community based sample of 278 young people aged 15-24 years to assess own suicidal behaviours, attitudes towards suicide as well as exposure to suicidal behaviour among significant others. The hospital surveillance showed that suicide attempt rates were highest among females in the age group 15-19 years with a female rate three times that of males (302.9 versus 98.9 per 100,000 inhabits per year). Drug intoxication and pesticides were the most commonly used methods for the attempts. A consistent seasonal variation with peaks in May-June and September-October was found in each of the three years, possibly related to exam periods in schools. Findings in the qualitative approach led to a tentative model for pathways to suicidal behaviour based on four main categories: Structuring conditions, triggering events, emotions and action taken. Dysfunctional families, lack of confidential and trustworthy contacts and interpersonal conflicts followed by emotions of shame and anger were some important components in the model. The community studies showed that suicidal expressions (life-weariness, death wishes, suicidal ideation, suicide plans and suicide attempts) were common among young people where more than 44.8% of males and 47.4% of females reported some kind of suicidal expression. Gender differences were small. Exposure to suicidal behaviour among others was associated with higher levels of self-reported suicidal behaviour. The attitude study showed that boys had less pro-preventive attitudes than girls, possibly indicating their higher risk for completed suicide. Exposure to suicidal behaviour and own suicidal behaviour showed an association with specific patterns of attitudes. The findings should be taken into consideration when planning for prevention of suicidal behaviour among young people in a developing country like Nicaragua.
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13.
  • Herrera Rodríguez, Andrés, et al. (författare)
  • Pathways to suicidal behaviour among adolescent girls in Nicaragua
  • 2006
  • Ingår i: Social Science and Medicine. - : Elsevier BV. - 0277-9536 .- 1873-5347. ; 62:4, s. 805-814
  • Tidskriftsartikel (refereegranskat)abstract
    • Adolescent girls are the most frequent suicide attempters worldwide. However, there is little knowledge about pathways leading to suicidal behaviour among young people, in particular in low-income countries. This study explores the motives and processes related to suicidal behaviour among young girls in Nicaragua. Individual in-depth interviews were conducted with eight girls aged between 12 and 19 admitted to hospital after attempting suicide. The audio-taped interviews lasted 2–4 h and were transcribed, translated into English and coded for content. Grounded theory and content analysis were used to construct a theory of the mechanisms behind their suicidal behaviour. A tentative model exploring pathways to suicidal behaviour is described with four main categories: structuring conditions, triggering events, emotions and actions taken. The model illustrates the dialectic interplay between structure and actions taken. Actions taken were categorized as problem solving or various forms of escape where failure with either of these strategies resulted in a suicide attempt. Dysfunctional families, absent fathers and lack of integration into society were some of the structuring conditions that lead to emotional distress. Abuse, deaths in the family, break-up with boyfriends or suicide among friends acted as triggering events. A striking finding was the obvious narrative competence of the girls. Our findings indicate that suicide prevention programmes for young people must offer support from professionals, independent of their family and social networks. Institutions in the community in contact with young people with suicidal behaviour must develop communicative skills to offer a trusting environment mobilising the resources that young people have.
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15.
  • Valladares Cardoza, Eliette, 1963- (författare)
  • Partner violence during pregnancy, psychosocial factors and child outcomes in Nicaragua
  • 2005
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • The objectives of the thesis was to explore partner violence during pregnancy in Nicaragua – its prevalence and characteristics, how women perceive, understand and cope with it, its association with specific child outcomes such as low birth weight (LBW), small for gestational age (SGA) and preterm birth, and possible pathways. A cross-sectional community-based study was conducted with 478 pregnant women and for a sub-sample of 147 salivary cortisol was measured. A case-referent hospital-based study was organized including 303 mothers immediately after delivery. In-depth interviews were conducted with women survivors to increase understanding of partner violence during pregnancy. The prevalence of emotional, physical and sexual partner abuse during pregnancy was 32.4%, 13.4% and 6.7% respectively. Seventeen percent of the victims suffered all three types of violence and in two thirds the abuse was severe and repeated. Half of the abused women had experienced punches and kicks directed to the abdomen; however, only 14% had sought health care and very few had disclosed the abuse or contacted police or authorities. Adolescent mothers, unwanted pregnancy and late registration for antenatal care or no check-ups were more likely among victims. The access to social resources facilitated the women’s ability to cope with the abuse, but the pregnancy itself was a barrier to receiving support from family, friends or society. The ability to confront abuse was determined by a complex interplay of factors such as economic independence, severity of abuse, access to social resources, implications for important others (i.e. children), socioeconomic group and a personal ability to cope with social norms. Low social resources, high levels of emotional distress and attempted suicide were associated with violence during pregnancy. Abuse during pregnancy was also found as an independent risk factor for LBW. Sixteen percent of LBW was attributed to physical abuse by a partner during pregnancy. A significant association between abuse during the index pregnancy and SGA was found. Partner violence during the pregnancy, low social resources and emotional distress were associated with higher levels of salivary cortisol. Pregnant women with high cortisol values were significantly more likely to give birth to SGA babies. A substantial decrease of birthweight, 142 grams, was estimated to be associated with increases in cortisol due to violence exposure. Partner violence during pregnancy is a serious social problem that impacts the rights, health and wellbeing of both the woman and her unborn child. The studies call for prioritization of intervention programmes for prevention and detection of violence, treatment and rehabilitation of the victims and the perpetrators, and change of the structural causes producing violence in society.
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17.
  • Mendoza, Alfredo (författare)
  • Groundwater occurrence and risk of pollution in a mountain watershed of Nicaragua
  • 2006
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • Hydrogeological and geophysical methods were applied in the Río Artiguas watershed, a mountain basin located in central Nicaragua. This area is under environmental stress from anthropogenic activities like gold mining using mercury and waste disposal into the streams. The aim of this work was to characterise the hydrogeological conditions in the basin with emphasis on understanding the possible connections between streams and groundwater. It was also important to evaluate the vulnerability and risk of groundwater pollution. Hydrogeological mapping, resistivity imaging, hydrological measurements and hydrochemical surveys were combined to meet the aims of the work. The hydrogeological characterisation permitted identification of a) recharge areas, b) geological units that contribute to the formation of the groundwater system and c) a mechanism of discharge through springs and streams. The geophysical surveys allowed mapping the extension of weathering and tectonic features with hydrogeological significance, e.g. faults, dykes and fractures. A total of 99 perennial springs were documented and classified according to their mechanism of formation. Isotopic data indicate that the recharge occurs very close to the sites where the springs are formed. This is also supported by the relatively low ion concentrations found in the water of the springs. The weathering layers together with fractures and dykes form shallow aquifers that commonly discharge in a spring or along the streams. The high precipitation regime is an immediate source of water to the system, and in conjunction with the geology and steep topography it generates a constant and rapid circulation of water from recharge areas to discharge zones. The natural implication of this hydrogeological framework is that the formation of large or regional flows is not evident at the current state of knowledge. The same factors that influence groundwater occurrence are to some extent responsible for the degree of groundwater vulnerability to pollution. The vulnerable areas are situated along the steep valleys of the basin, where the interactions between subsurface and surface water can facilitate the spreading of pollutants. Since the pollution sources are located near the streams the risk of groundwater pollution is concentrated there. The pollutants disposed into the streams are rapidly removed by the river flow, which has a high contribution from precipitation. The pollutants are then transported far away from the sources. The urgent need to end the pollution of Río Artiguas is obvious. The tools to prevent further deterioration are not only to be found in the hydro geosciences and mining technology sphere, but they are also located in the socio?political arena. In this respect, the research presented in this thesis will gain importance as it reaches and informs local decision makers about the vulnerability and risks of pollution that the current anthropogenic activities represent for the groundwater resources.
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18.
  • Athanasiadou, Maria, et al. (författare)
  • Polybrominated diphenyl ethers (PBDEs) and bioaccumulative hydroxylated PBDE metabolites in young humans from Managua, Nicaragua.
  • 2008
  • Ingår i: Environ Health Perspect. - : Environmental Health Perspectives. - 0091-6765 .- 1552-9924. ; 116:3, s. 400-8
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: Our aim was to investigate exposure to polybrominated diphenyl ethers (PBDEs) in a young urban population in a developing country, with focus on potentially highly exposed children working informally as scrap scavengers at a large municipal waste disposal site. We also set out to investigate whether hydroxylated metabolites, which not hitherto have been found retained in humans, could be detected. METHODS: We assessed PBDEs in pooled serum samples obtained in 2002 from children 11-15 years of age, working and sometimes also living at the municipal waste disposal site in Managua, and in nonworking urban children. The influence of fish consumption was evaluated in the children and in groups of women 15-44 years of age who differed markedly in their fish consumption. Hydroxylated PBDEs were assessed as their methoxylated derivates. The chemical analyses were performed by gas chromatography/mass spectrometry, using authentic reference substances. RESULTS: The children living and working at the waste disposal site showed very high levels of medium brominated diphenyl ethers. The levels observed in the referent children were comparable to contemporary observations in the United States. The exposure pattern was consistent with dust being the dominating source. The children with the highest PBDE levels also had the highest levels of hydroxylated metabolites. CONCLUSIONS: Unexpectedly, very high levels of PBDEs were found in children from an urban area in a developing country. Also, for the first time, hydroxylated PBDE metabolites were found to bioaccumulate in human serum.
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19.
  • Bucardo, Filemon, et al. (författare)
  • Pediatric norovirus diarrhea in Nicaragua
  • 2008
  • Ingår i: Journal of Clinical Microbiology. - 0095-1137 .- 1098-660X. ; 46:8, s. 2573-2580
  • Tidskriftsartikel (refereegranskat)abstract
    • Information about norovirus (NoV) infections in Central America is limited. Through a passive community and hospital pediatric diarrhea surveillance program, a total of 542 stool samples were collected between March 2005 and February 2006 in León, Nicaragua. NoV was detected in 12% (65/542) of the children; of these, 11% (45/409) were in the community and 15% (20/133) were in the hospital, with most strains (88%) belonging to genogroup II. NoV infections were age and gender associated, with children of <2 years of age (P < 0.05) and girls (P < 0.05) being most affected. Breast-feeding did not reduce the number of NoV infections. An important proportion (57%) of NoV-infected children were coinfected with diarrheagenic Escherichia coli. A significant proportion (18/31) of NoV-positive children with dehydration required intravenous rehydration. Nucleotide sequence analysis (38/65) of the N-terminal and shell region in the capsid gene revealed that at least six genotypes (GI.4, GII.2, GII.4, GII.7, GII.17, and a potentially novel cluster termed "GII.18-Nica") circulated during the study period, with GII.4 virus being predominant (26/38). The majority (20/26) of those GII.4 strains shared high nucleotide homology (99%) with the globally emerging Hunter strain. The mean viral load was approximately 15-fold higher in children infected with GII.4 virus than in those infected with other G.II viruses, with the highest viral load observed for the group of children infected with GII.4 and requiring intravenous rehydration. This study, the first of its type from a Central American country, suggests that NoV is an important etiological agent of acute diarrhea among children of <2 years of age in Nicaragua.
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20.
  • Berg, Linda, 1974- (författare)
  • InterNacionalistas : identifikation och främlingskap i svenska solidaritetsarbetares berättelser från Nicaragua
  • 2007
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • The aim of this thesis is to explore what solidarity workers from Sweden narrate about and from activities in Nicaragua. I focus on how identities reflect nationalising, racialising and gendering imaginations, and how these are being handled within the context of an international solidarity movement – with the ambition to strive for global justice. My search for answers takes its point of departure in a wide gender-oriented postcolonial perspective. With an understanding of identities and places as relational and plastic, postcolonial theory attempts to see the inevitable dilemmas of colonialism, to visualise people who have been sacrificed in the name of colonialism and nationalism. It is a theoretical field concerned with the struggle for the word, values and actions categorised by a (post)colonial order. The dissertation is divided into six chapters. After the introductory chapter, chapter 2 contains a discussion of the concept solidarity as a valuable designation for these activities, connected to a national self-image and as a determining factor for the informants' understanding of their identities. One fundamental theme in this study is the tension concerning “white”, “western”, “Swedish” solidarity workers speaking for and working with people in Nicaragua. In Chapter 3, “To make oneself trustworthy”, I take a closer look at this and discusses how the interviewees verbalised strategies to handle possible positions and the paradoxes of their employment. In chapter 4 “Nationalising gender”, I examine the speech of women, men, machismo and gender equality – and how they interrelate with other factors within the stories from the period in Nicaragua. The difficulties to intervene as a Swedish volunteer or coordinator in Nicaragua were well known among the interviewees/narrators and their organisations. How and what activities for change could be in different parts of the world were, and are, repeated questions within (at least this part of) the Swedish international solidarity movement. This is one reason why the solidarity organisations emphasised the importance of creating space for social change via information and moulding of public opinion. In Chapter five, “Describe Nicaragua”, I analyse the written stories by solidarity workers. I take departure in a few of the dominating themes and clarify how Nicaragua was mediated to a Swedish speaking reader. I argue that the stories of the solidarity workers are captured between recognising difference and creating stereotypes and exotic projections. Even though their object is the opposite, they tend to produce representations which demand the Other to stay in the place of difference. In the very last part I discuss some problems with being the “voice of the poor”. The dissertation concludes with a short summary of some of the most central themes. Here I refer to the narrated liminality and inherited boundaries of the employment. I discuss the anti-imperialist and feminist work with a national dead weight and the efforts to create alternative images and translocal subject positions. I end the study by reflecting on the difficulties of an internationalist “we” and with reference to Gayatri Chakravorty Spivak, I call for “unlearning our privileges as our loss”.
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