Records |
Author |
Firmansyah, I.; Spiller, M.; de Ruijter, F.J.; Carsjens, G.J.; Zeeman, G. |
Title |
Assessment of nitrogen and phosphorus flows in agricultural and urban systems in a small island under limited data availability |
Type |
Journal Article |
Year |
2017 |
Publication |
The Science of the Total Environment |
Abbreviated Journal |
Sci Total Environ |
Volume |
574 |
Issue |
|
Pages |
1521-1532 |
Keywords |
Nitrogen; Phosphorus; Small island system; Substance Flow Analysis (SFA); Urban metabolism; Urban-agriculture |
Abstract |
Nitrogen (N) and phosphorus (P) are two essential macronutrients required in agricultural production. The major share of this production relies on chemical fertilizer that requires energy and relies on limited resources (P). Since these nutrients are lost to the environment, there is a need to shift from this linear urban metabolism to a circular metabolism in which N and P from domestic waste and wastewater are reused in agriculture. A first step to facilitate a transition to more circular urban N and P management is to understand the flows of these resources in a coupled urban-agricultural system. For the first time this paper presents a Substance Flow Analysis (SFA) approach for the assessment of the coupled agricultural and urban systems under limited data availability in a small island. The developed SFA approach is used to identify intervention points that can provide N and P stocks for agricultural production. The island of St. Eustatius, a small island in the Caribbean, was used as a case study. The model developed in this study consists of eight sub-systems: agricultural and natural lands, urban lands, crop production, animal production, market, household consumption, soakage pit and open-dump landfill. A total of 26 flows were identified and quantified for a period of one year (2013). The results showed that the agricultural system is a significant source for N and P loss because of erosion/run-off and leaching. Moreover, urban sanitation systems contribute to deterioration of the island's ecosystem through N and P losses from domestic waste and wastewater by leaching and atmospheric emission. Proposed interventions are the treatment of blackwater and greywater for the recovery of N and P. In conclusion, this study allows for identification of potential N and P losses and proposes mitigation measures to improve nutrient management in a small island context. |
Address |
Sub-department of Environmental Technology, Wageningen UR, Bornse Weilanden 9, 6708 WG Wageningen, The Netherlands |
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0048-9697 |
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Notes  |
PMID:27613673 |
Approved |
no |
Call Number |
ref @ user @ |
Serial |
97161 |
Permanent link to this record |
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Author |
Firmansyah, I.; Spiller, M.; de Ruijter, F.J.; Carsjens, G.J.; Zeeman, G. |
Title |
Assessment of nitrogen and phosphorus flows in agricultural and urban systems in a small island under limited data availability |
Type |
Journal Article |
Year |
2017 |
Publication |
The Science of the Total Environment |
Abbreviated Journal |
Sci Total Environ |
Volume |
574 |
Issue |
|
Pages |
1521-1532 |
Keywords |
Nitrogen; Phosphorus; Small island system; Substance Flow Analysis (SFA); Urban metabolism; Urban-agriculture |
Abstract |
Nitrogen (N) and phosphorus (P) are two essential macronutrients required in agricultural production. The major share of this production relies on chemical fertilizer that requires energy and relies on limited resources (P). Since these nutrients are lost to the environment, there is a need to shift from this linear urban metabolism to a circular metabolism in which N and P from domestic waste and wastewater are reused in agriculture. A first step to facilitate a transition to more circular urban N and P management is to understand the flows of these resources in a coupled urban-agricultural system. For the first time this paper presents a Substance Flow Analysis (SFA) approach for the assessment of the coupled agricultural and urban systems under limited data availability in a small island. The developed SFA approach is used to identify intervention points that can provide N and P stocks for agricultural production. The island of St. Eustatius, a small island in the Caribbean, was used as a case study. The model developed in this study consists of eight sub-systems: agricultural and natural lands, urban lands, crop production, animal production, market, household consumption, soakage pit and open-dump landfill. A total of 26 flows were identified and quantified for a period of one year (2013). The results showed that the agricultural system is a significant source for N and P loss because of erosion/run-off and leaching. Moreover, urban sanitation systems contribute to deterioration of the island's ecosystem through N and P losses from domestic waste and wastewater by leaching and atmospheric emission. Proposed interventions are the treatment of blackwater and greywater for the recovery of N and P. In conclusion, this study allows for identification of potential N and P losses and proposes mitigation measures to improve nutrient management in a small island context. |
Address |
Sub-department of Environmental Technology, Wageningen UR, Bornse Weilanden 9, 6708 WG Wageningen, The Netherlands |
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ISSN |
0048-9697 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes  |
PMID:27613673 |
Approved |
no |
Call Number |
ref @ user @ |
Serial |
97517 |
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Author |
Rogers, A.E.J.; Eisenman, K.M.; Dolan, S.A.; Belderson, K.M.; Zauche, J.R.; Tong, S.; Gralla, J.; Hilden, J.M.; Wang, M.; Maloney, K.W.; Dominguez, S.R. |
Title |
Risk factors for bacteremia and central line-associated blood stream infections in children with acute myelogenous leukemia: A single-institution report |
Type |
Journal Article |
Year |
2017 |
Publication |
Pediatric Blood & Cancer |
Abbreviated Journal |
Pediatr Blood Cancer |
Volume |
64 |
Issue |
3 |
Pages |
|
Keywords |
Adolescent; Bacteremia/*etiology; Bacteria/isolation & purification; Case-Control Studies; Catheter-Related Infections/*etiology; Catheterization, Central Venous/*adverse effects; Child; Child, Preschool; Cross Infection/*etiology; Female; Follow-Up Studies; Humans; Infant; Intensive Care Units, Pediatric; Leukemia, Myeloid, Acute/*complications/microbiology; Male; Prognosis; Retrospective Studies; Risk Factors; Clabsi; acute myelogenous leukemia; bacteremia; pediatric oncology |
Abstract |
BACKGROUND: Central line-associated blood stream infections (CLABSIs) are a source of high morbidity and mortality in children with acute myelogenous leukemia (AML). PROCEDURE: To understand the epidemiology and risk factors associated with the development of CLABSI in children with AML. METHODS: We retrospectively reviewed all patients with AML over a 5-year period between 2007 and 2011 at the Children's Hospital Colorado. Cases and controls were classified on the basis of the presence of a CLABSI as defined by the National Healthcare Safety Network. RESULTS: Of 40 patients in the study, 25 (62.5%) developed at least one CLABSI during therapy. The majority of CLABSIs were due to oral or gastrointestinal organisms (83.0%). Skin organisms accounted for 8.5%. In a multivariable analysis, the strongest risk factors associated with CLABSI were diarrhea (odds ratio [OR] 6.7, 95% confidence interval [CI] 1.6-28.7), receipt of blood products in the preceding 4-7 days (OR 10.0, 95%CI 3.2-31.0), not receiving antibiotics (OR 8.3, 95%CI 2.8-25.0), and chemotherapy cycle (OR 3.5, 95%CI 1.4-8.9). CLABSIs led to increased morbidity, with 13 cases (32.5%) versus two controls (1.9%) requiring transfer to the pediatric intensive care unit (P < 0.001). Three (7.5%) of 40 CLABSI events resulted in or contributed to death. CONCLUSIONS: Intensified line care efforts cannot eliminate all CLABSIs in the patients with AML. Exploring the role of mucosal barrier breakdown and/or the use of antibiotic prophylaxis may be effective strategies for further prevention of CLABSIs, supporting ongoing trials in this patient population. |
Address |
Department of Infectious Disease, University of Colorado Denver School of Medicine and Children's Hospital Colorado, Aurora, Colorado |
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ISSN |
1545-5009 |
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Notes  |
PMID:27616655 |
Approved |
no |
Call Number |
ref @ user @ |
Serial |
99291 |
Permanent link to this record |
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Author |
Rogers, A.E.J.; Eisenman, K.M.; Dolan, S.A.; Belderson, K.M.; Zauche, J.R.; Tong, S.; Gralla, J.; Hilden, J.M.; Wang, M.; Maloney, K.W.; Dominguez, S.R. |
Title |
Risk factors for bacteremia and central line-associated blood stream infections in children with acute myelogenous leukemia: A single-institution report |
Type |
Journal Article |
Year |
2017 |
Publication |
Pediatric Blood & Cancer |
Abbreviated Journal |
Pediatr Blood Cancer |
Volume |
64 |
Issue |
3 |
Pages |
|
Keywords |
Adolescent; Bacteremia/*etiology; Bacteria/isolation & purification; Case-Control Studies; Catheter-Related Infections/*etiology; Catheterization, Central Venous/*adverse effects; Child; Child, Preschool; Cross Infection/*etiology; Female; Follow-Up Studies; Humans; Infant; Intensive Care Units, Pediatric; Leukemia, Myeloid, Acute/*complications/microbiology; Male; Prognosis; Retrospective Studies; Risk Factors; Clabsi; acute myelogenous leukemia; bacteremia; pediatric oncology |
Abstract |
BACKGROUND: Central line-associated blood stream infections (CLABSIs) are a source of high morbidity and mortality in children with acute myelogenous leukemia (AML). PROCEDURE: To understand the epidemiology and risk factors associated with the development of CLABSI in children with AML. METHODS: We retrospectively reviewed all patients with AML over a 5-year period between 2007 and 2011 at the Children's Hospital Colorado. Cases and controls were classified on the basis of the presence of a CLABSI as defined by the National Healthcare Safety Network. RESULTS: Of 40 patients in the study, 25 (62.5%) developed at least one CLABSI during therapy. The majority of CLABSIs were due to oral or gastrointestinal organisms (83.0%). Skin organisms accounted for 8.5%. In a multivariable analysis, the strongest risk factors associated with CLABSI were diarrhea (odds ratio [OR] 6.7, 95% confidence interval [CI] 1.6-28.7), receipt of blood products in the preceding 4-7 days (OR 10.0, 95%CI 3.2-31.0), not receiving antibiotics (OR 8.3, 95%CI 2.8-25.0), and chemotherapy cycle (OR 3.5, 95%CI 1.4-8.9). CLABSIs led to increased morbidity, with 13 cases (32.5%) versus two controls (1.9%) requiring transfer to the pediatric intensive care unit (P < 0.001). Three (7.5%) of 40 CLABSI events resulted in or contributed to death. CONCLUSIONS: Intensified line care efforts cannot eliminate all CLABSIs in the patients with AML. Exploring the role of mucosal barrier breakdown and/or the use of antibiotic prophylaxis may be effective strategies for further prevention of CLABSIs, supporting ongoing trials in this patient population. |
Address |
Department of Infectious Disease, University of Colorado Denver School of Medicine and Children's Hospital Colorado, Aurora, Colorado |
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English |
Summary Language |
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Series Editor |
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Abbreviated Series Title |
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ISSN |
1545-5009 |
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Conference |
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Notes  |
PMID:27616655 |
Approved |
no |
Call Number |
ref @ user @ |
Serial |
100321 |
Permanent link to this record |
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Author |
Safon, C.; Keene, D.; Guevara, W.J.U.; Kiani, S.; Herkert, D.; Munoz, E.E.; Perez-Escamilla, R. |
Title |
Determinants of perceived insufficient milk among new mothers in Leon, Nicaragua |
Type |
Journal Article |
Year |
2017 |
Publication |
Maternal & Child Nutrition |
Abbreviated Journal |
Matern Child Nutr |
Volume |
13 |
Issue |
3 |
Pages |
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Keywords |
Baby-friendly hospital initiative; breastfeeding; breastfeeding promotion; breastfeeding support; perceived insufficient milk; qualitative methods |
Abstract |
Breastfeeding has been shown to improve maternal and child health. In Nicaragua, the primary risk of death and disability-adjusted life years among children under 5 years of age is suboptimal breastfeeding. Although the Nicaraguan Ministry of Health promotes exclusive breastfeeding from within the first half hour through the first 6 months of life, less than a third of children in the country under 6 months of age are exclusively breastfed. As part of a larger, mixed-methods study, 21 semi-structured, in-depth interviews were conducted with new mothers recruited from three primary health centers between June and August 2015 in order to identify the social, cultural, and structural factors that contribute to infant feeding practices and the discrepancy between recommendations and practices among mothers who delivered at an urban public hospital in Leon, Nicaragua. Audio recordings were transcribed verbatim, and interview transcripts were coded and analyzed by a three-member team using a grounded theory approach. Findings highlight a widespread perception of insufficient milk among mothers that influenced early cessation of exclusive breastfeeding and other infant feeding practices. This perception stemmed from anxiety about meeting infant nutritional needs and infant satiety, anxiety about maternal nutrition, advice from and role modeling of family members about mixed feeding, and perceived infant feeding norms. Results suggest that support modeled after the 10 steps of the Baby-friendly Hospital Initiative as well as strengthened policy-level support are needed. Community interventions that address cultural and structural barriers to improve breastfeeding practices may also help to increase breastfeeding rates. |
Address |
Yale School of Public Health, New Haven, Connecticut, USA |
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1740-8695 |
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Notes  |
PMID:27650889 |
Approved |
no |
Call Number |
ref @ user @ |
Serial |
97340 |
Permanent link to this record |