| Records |
| Author |
Herrero, M.; Thornton, P.K.; Power, B.; Bogard, J.R.; Remans, R.; Fritz, S.; Gerber, J.S.; Nelson, G.; See, L.; Waha, K.; Watson, R.A.; West, P.C.; Samberg, L.H.; van de Steeg, J.; Stephenson, E.; van Wijk, M.; Havlik, P. |
| Title |
Farming and the geography of nutrient production for human use: a transdisciplinary analysis |
Type |
Journal Article |
| Year |
2017 |
Publication |
The Lancet. Planetary Health |
Abbreviated Journal |
Lancet Planet Health |
| Volume |
1 |
Issue |
1 |
Pages |
e33-e42 |
| Keywords |
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| Abstract |
BACKGROUND: Information about the global structure of agriculture and nutrient production and its diversity is essential to improve present understanding of national food production patterns, agricultural livelihoods, and food chains, and their linkages to land use and their associated ecosystems services. Here we provide a plausible breakdown of global agricultural and nutrient production by farm size, and also study the associations between farm size, agricultural diversity, and nutrient production. This analysis is crucial to design interventions that might be appropriately targeted to promote healthy diets and ecosystems in the face of population growth, urbanisation, and climate change. METHODS: We used existing spatially-explicit global datasets to estimate the production levels of 41 major crops, seven livestock, and 14 aquaculture and fish products. From overall production estimates, we estimated the production of vitamin A, vitamin B12, folate, iron, zinc, calcium, calories, and protein. We also estimated the relative contribution of farms of different sizes to the production of different agricultural commodities and associated nutrients, as well as how the diversity of food production based on the number of different products grown per geographic pixel and distribution of products within this pixel (Shannon diversity index [H]) changes with different farm sizes. FINDINGS: Globally, small and medium farms (</=50 ha) produce 51-77% of nearly all commodities and nutrients examined here. However, important regional differences exist. Large farms (>50 ha) dominate production in North America, South America, and Australia and New Zealand. In these regions, large farms contribute between 75% and 100% of all cereal, livestock, and fruit production, and the pattern is similar for other commodity groups. By contrast, small farms (</=20 ha) produce more than 75% of most food commodities in sub-Saharan Africa, southeast Asia, south Asia, and China. In Europe, west Asia and north Africa, and central America, medium-size farms (20-50 ha) also contribute substantially to the production of most food commodities. Very small farms (</=2 ha) are important and have local significance in sub-Saharan Africa, southeast Asia, and south Asia, where they contribute to about 30% of most food commodities. The majority of vegetables (81%), roots and tubers (72%), pulses (67%), fruits (66%), fish and livestock products (60%), and cereals (56%) are produced in diverse landscapes (H>1.5). Similarly, the majority of global micronutrients (53-81%) and protein (57%) are also produced in more diverse agricultural landscapes (H>1.5). By contrast, the majority of sugar (73%) and oil crops (57%) are produced in less diverse ones (H</=1.5), which also account for the majority of global calorie production (56%). The diversity of agricultural and nutrient production diminishes as farm size increases. However, areas of the world with higher agricultural diversity produce more nutrients, irrespective of farm size. INTERPRETATION: Our results show that farm size and diversity of agricultural production vary substantially across regions and are key structural determinants of food and nutrient production that need to be considered in plans to meet social, economic, and environmental targets. At the global level, both small and large farms have key roles in food and nutrition security. Efforts to maintain production diversity as farm sizes increase seem to be necessary to maintain the production of diverse nutrients and viable, multifunctional, sustainable landscapes. FUNDING: Commonwealth Scientific and Industrial Research Organisation, Bill & Melinda Gates Foundation, CGIAR Research Programs on Climate Change, Agriculture and Food Security and on Agriculture for Nutrition and Health funded by the CGIAR Fund Council, Daniel and Nina Carasso Foundation, European Union, International Fund for Agricultural Development, Australian Research Council, National Science Foundation, Gordon and Betty Moore Foundation, and Joint Programming Initiative on Agriculture, Food Security and Climate Change-Belmont Forum. |
| Address |
International Institute for Applied Systems Analysis, Laxenburg, Austria |
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| Language |
English |
Summary Language |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
2542-5196 |
ISBN |
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Expedition |
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Conference |
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| Notes |
PMID:28670647 |
Approved |
no |
| Call Number |
ref @ user @ |
Serial  |
98017 |
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| Author |
Piovezan, R.D.; Hirotsu, C.; Feres, M.C.; Cintra, F.D.; Andersen, M.L.; Tufik, S.; Poyares, D. |
| Title |
Obstructive sleep apnea and objective short sleep duration are independently associated with the risk of serum vitamin D deficiency |
Type |
Journal Article |
| Year |
2017 |
Publication |
PloS one |
Abbreviated Journal |
PLoS One |
| Volume |
12 |
Issue |
7 |
Pages |
e0180901 |
| Keywords |
Adult; African Continental Ancestry Group; Cross-Sectional Studies; Diabetes Mellitus/physiopathology; European Continental Ancestry Group; Female; Humans; Hypertension/physiopathology; Male; Middle Aged; Obesity/physiopathology; Polysomnography; Risk Factors; Sedentary Lifestyle; Severity of Illness Index; Sleep/physiology; Sleep Apnea, Obstructive/blood/*complications/ethnology/physiopathology; Sleep Wake Disorders/blood/*complications/ethnology/physiopathology; Smoking/physiopathology; Surveys and Questionnaires; Vitamin D/*blood; Vitamin D Deficiency/blood/*complications/ethnology/physiopathology |
| Abstract |
BACKGROUND: Studies demonstrate an association between vitamin D (25(OH)D) deficiency and sleep disturbances, such as obstructive sleep apnea (OSA) and short sleep duration. However, to date, no studies have concurrently and objectively evaluated the effect of these factors on 25(OH)D. OBJECTIVES: To evaluate whether OSA and objective short sleep duration are independently associated with reduced 25(OH)D in an adult population sample. METHODS: A cross-sectional study included 657 individuals from the city of Sao Paulo, Brazil, as part of the ERA project. Participants fulfilled questionnaires and underwent clinical evaluation, polysomnography and blood sample collection for 25(OH)D quantification. OSA was classified into three categories (mild, moderate and severe). The risk of 25(OH)D deficiency was considered as levels<30 ng/mL. Short sleep duration was defined as total sleep time<6 hours. RESULTS: The risk of 25(OH)D deficiency was observed in 59.5% of the sample, affecting more individuals of the female gender, obese, with African American ethnicity, and those that were smokers, sedentary and presented hypertension and diabetes. In the final logistic model adjusted for age, gender, ethnicity, obesity, smoking, hypertension, diabetes, sedentary lifestyle, seasonality and creatinine serum levels, both OSA and short sleep duration showed significant independent associations with the risk of 25(OH)D deficiency (moderate OSA: OR for 25(OH)D<30 = 2.21, 95% CI: 1.35-3.64, p<0.01; severe OSA: OR for 25(OH)D<30 = 1.78, 95% CI: 1.06-3.00, p = 0.03; short sleep duration: OR for 25(OH)D<30 = 1.61, 95% CI: 1.15-2.26, p = 0.01). After a subgroup analysis, similar results were observed only in participants >/=50 years. CONCLUSION: OSA and short sleep duration are independently associated with the risk of 25(OH)D deficiency in an adult population. Age-related changes in vitamin D metabolism and the frequency of sleep disorders may be involved in these associations. Future studies exploring whether 25(OH)D levels may modulate OSA and sleep curtailment-related outcomes are needed. |
| Address |
Department of Psychobiology, Universidade Federal de Sao Paulo, Sao Paulo, Sao Paulo, Brazil |
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English |
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Series Issue |
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1932-6203 |
ISBN |
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Expedition |
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Conference |
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| Notes |
PMID:28686746 |
Approved |
no |
| Call Number |
ref @ user @ |
Serial |
98016 |
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| Author |
McCloskey, M.L.; Tarazona-Meza, C.E.; Jones-Smith, J.C.; Miele, C.H.; Gilman, R.H.; Bernabe-Ortiz, A.; Miranda, J.J.; Checkley, W. |
| Title |
Disparities in dietary intake and physical activity patterns across the urbanization divide in the Peruvian Andes |
Type |
Journal Article |
| Year |
2017 |
Publication |
The International Journal of Behavioral Nutrition and Physical Activity |
Abbreviated Journal |
Int J Behav Nutr Phys Act |
| Volume |
14 |
Issue |
1 |
Pages |
90 |
| Keywords |
24-h recall; Chronic diseases; Low- and middle income countries; Nutrition transition; Overweight; Urbanization |
| Abstract |
BACKGROUND: Diet and activity are thought to worsen with urbanization, thereby increasing risk of obesity and chronic diseases. A better understanding of dietary and activity patterns across the urbanization divide may help identify pathways, and therefore intervention targets, leading to the epidemic of overweight seen in low- and middle-income populations. Therefore, we sought to characterize diet and activity in a population-based study of urban and rural residents in Puno, Peru. METHODS: We compared diet and activity in 1005 (503 urban, 502 rural) participants via a lifestyle questionnaire. We then recruited an age- and sex-stratified random sample of 50 (25 urban, 25 rural) participants to further characterize diet and activity. Among these participants, diet composition and macronutrient intake was assessed by three non-consecutive 24-h dietary recalls and physical activity was assessed using Omron JH-720itc pedometers. RESULTS: Among 1005 participants, we found that urban residents consumed protein-rich foods, refined grains, sugary items, and fresh produce more frequently than rural residents. Among the 50 subsample participants, urban dwellers consumed more protein (47 vs. 39 g; p = 0.05), more carbohydrates (280 vs. 220 g; p = 0.03), more sugary foods (98 vs. 48 g, p = 0.02) and had greater dietary diversity (6.4 vs 5.8; p = 0.04). Rural subsample participants consumed more added salt (3.1 vs 1.7 g, p = 0.006) and tended to consume more vegetable oil. As estimated by pedometers, urban subsample participants burned fewer calories per day (191 vs 270 kcal, p = 0.03). CONCLUSIONS: Although urbanization is typically thought to increase consumption of fat, sugar and salt, our 24-h recall results were mixed and showed lower levels of obesity in rural Puno were not necessarily indicative of nutritionally-balanced diets. All subsample participants had relatively traditional lifestyles (low fat intake, limited consumption of processed foods and frequent walking) that may play a role in chronic disease outcomes in this region. |
| Address |
Biomedical Research Unit, A.B. PRISMA, Lima, Peru. wcheckl1@jhmi.edu |
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English |
Summary Language |
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Series Issue |
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Edition |
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| ISSN |
1479-5868 |
ISBN |
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Expedition |
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Conference |
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| Notes |
PMID:28693514 |
Approved |
no |
| Call Number |
ref @ user @ |
Serial |
98015 |
| Permanent link to this record |
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| Author |
Goncalves, P.B.; Hallal, P.C.; Hino, A.A.F.; Reis, R.S. |
| Title |
Individual and environmental correlates of objectively measured physical activity and sedentary time in adults from Curitiba, Brazil |
Type |
Journal Article |
| Year |
2017 |
Publication |
International Journal of Public Health |
Abbreviated Journal |
Int J Public Health |
| Volume |
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Issue |
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Pages |
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| Keywords |
Accelerometry; Adults; Environmental correlates; Individual correlates; Physical activity; Sedentary time |
| Abstract |
OBJECTIVES: This study assessed the association of individual and neighborhood environment characteristics and objectively measured physical activity (PA) and sedentary time (ST) in adults from Curitiba, Brazil. METHODS: A population-based cross-sectional study was conducted through face-to-face household interviews in 2010. The analytic sample included 305 adults aged 20-65 years recruited from 32 census tracts selected according to neighborhood walkability and socioeconomic status. Individual and environmental PA correlates were evaluated through standardized and valid self-reported measures, including the Neighborhood Environment Walkability Scale. Minutes per week of PA and ST were assessed through accelerometry. Multi-level regression models were used in the analyses. RESULTS: After adjusting for confounders the strongest individual and environmental correlates associated with ST was residential density (B = 0.14; p = 0.008), light-intensity PA was being a father/mother (B = 35.71; p = 0.025) and moderate-to-vigorous PA was sex (B = 0.91; p < 0.001) and number of cars (one car, B = -1.05; two cars, B = -1.14; p < 0.001). CONCLUSIONS: The associations found with individual and environmental correlates varied accordingly across all outcomes. Future changes in policies and infrastructure should consider the social context of the community and improvements to promote a safer environment in the neighborhood. |
| Address |
Prevention Research Center, Brown School, Washington University in St. Louis, St. Louis, MO, USA |
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Thesis |
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English |
Summary Language |
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Abbreviated Series Title |
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Edition |
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1661-8556 |
ISBN |
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Conference |
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| Notes |
PMID:28717827 |
Approved |
no |
| Call Number |
ref @ user @ |
Serial |
98014 |
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| Author |
Jara-Samaniego, J.; Perez-Murcia, M.D.; Bustamante, M.A.; Paredes, C.; Perez-Espinosa, A.; Gavilanes-Teran, I.; Lopez, M.; Marhuenda-Egea, F.C.; Brito, H.; Moral, R. |
| Title |
Development of organic fertilizers from food market waste and urban gardening by composting in Ecuador |
Type |
Journal Article |
| Year |
2017 |
Publication |
PloS one |
Abbreviated Journal |
PLoS One |
| Volume |
12 |
Issue |
7 |
Pages |
e0181621 |
| Keywords |
Analysis of Variance; Carbon/analysis; *Cities; Ecuador; Feasibility Studies; *Fertilizers/analysis/economics; *Food; *Gardening/economics/methods; Nitrogen/analysis; Plants; Recycling/economics/methods; *Soil/chemistry; Temperature; Waste Management/economics/*methods |
| Abstract |
Currently, the management of urban waste streams in developing countries is not optimized yet, and in many cases these wastes are disposed untreated in open dumps. This fact causes serious environmental and health problems due to the presence of contaminants and pathogens. Frequently, the use of specific low-cost strategies reduces the total amount of wastes. These strategies are mainly associated to the identification, separate collection and composting of specific organic waste streams, such as vegetable and fruit refuses from food markets and urban gardening activities. Concretely, in the Chimborazo Region (Ecuador), more than 80% of municipal solid waste is dumped into environment due to the lack of an efficient waste management strategy. Therefore, the aim of this study was to develop a demonstration project at field scale in this region to evaluate the feasibility of implanting the composting technology not only for the management of the organic waste fluxes from food market and gardening activities to be scaled-up in other developing regions, but also to obtain an end-product with a commercial value as organic fertilizer. Three co-composting mixtures were prepared using market wastes mixed with pruning of trees and ornamental palms as bulking agents. Two piles were created using different proportions of market waste and prunings of trees and ornamental palms: pile 1 (50:33:17) with a C/N ratio 25; pile 2: (60:30:10) with C/N ratio 24 and pile 3 (75:0:25) with C/N ratio 33), prepared with market waste and prunings of ornamental palm. Throughout the process, the temperature of the mixtures was monitored and organic matter evolution was determined using thermogravimetric and chemical techniques. Additionally, physico-chemical, chemical and agronomic parameters were determined to evaluate compost quality. The results obtained indicated that all the piles showed a suitable development of the composting process, with a significant organic matter decomposition, reached in a shorter period of time in pile 3. At the end of the process, all the composts showed absence of phytotoxicity and suitable agronomic properties for their use as organic fertilizers. This reflects the viability of the proposed alternative to be scaled-up in developing areas, not only to manage and recycle urban waste fluxes, but also to obtain organic fertilizers, including added value in economic terms related to nutrient contents. |
| Address |
Dept. of Agrochemistry and Environment, Miguel Hernandez University, Orihuela, Alicante, Spain |
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English |
Summary Language |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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1932-6203 |
ISBN |
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Expedition |
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Conference |
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| Notes |
PMID:28727757 |
Approved |
no |
| Call Number |
ref @ user @ |
Serial |
98013 |
| Permanent link to this record |
