185 research outputs found
Health Accounts and Other Welfare Accounts
Gesundheitskosten, Gesundheitsfinanzierung, Health care costs, Health care financing
Soil water extraction through secondary vegetation during the dry season in 1997 in eastern Amazonia.
Consequences of intensive forest harvesting on the recovery of Swedish lakes from acidification and on critical load exceedances
Across much of the northern hemisphere, lakes are at risk of re-acidification due to incomplete recovery from historical acidification and pressures associated with more intensive forest biomass harvesting. Critical load (CL) calculations aimed at estimating the amount of pollutants an ecosystem can receive without suffering adverse consequences are dependent on these factors. Here, we present a modelling study of the potential effects of intensified forest harvesting on re-acidification of a set of 3239 Swedish lakes based on scenarios with varying intensities of forest biomass harvest and acid deposition. There is some evidence that forestry would have caused a certain level of acidification even if deposition remained at 1860 levels. We show that all plausible harvest scenarios delay recovery due to increased rates of base cation removal. Scenario results were used to estimate critical loads for the entire population of lakes in Sweden. The forestry intensity included in critical load calculations is a political decision. After scaling calculations to the national level, it was apparent that a high but plausible forest harvest intensity would lead to an increase in the area of CL exceedances and that even after significant reductions in forest harvest intensity, there would still be areas with CL exceedances. Our results show that forest harvest intensity and regional environmental change must be carefully considered in future CL calculations
Spatial patterns of some trace elements in four Swedish stream networks
Four river basins in southern Sweden, with catchment sizes from 0.3 to 127 km2 (median 1.9), were sampled in October~2007. The 243 samples were analysed for 26 trace elements (Ag, As, Au, Ba, Be, Bi, Cd, Co, Cr, Cu, Ga, Ge, In, La, Li, Mo, Ni, Pb, Sb, Se, Sn, Tl, Ti, U, V and Zn) to identify spatial patterns within drainage networks. The range and median of each element were defined for different stream orders, and relationships to catchment characteristics, including deposition history, were explored. The sampling design made it possible to compare the differences along 40 stream reaches, above and below 53 stream junctions with 107 tributaries and between the 77 inlets and outlets of 36 lakes. The largest concentration differences (at reaches, junctions and lakes) were observed for lakes, with outlets usually having lower concentration compared to the inlets for As, Ba, Be, Bi, Cd, Co, Cr, Ga, Ge, Ni, Pb, Sn, Ti, Tl, U, V and Zn. Significantly lower concentrations were observed for Cd and Co when comparing headwaters with downstream sites in each catchment. Common factor analysis (FA) revealed that As, Bi, Cr, Ga, Ge, Tl and V co-vary positively with Al, Fe and total organic carbon (TOC) and negatively with La, Li and pH. The strong removal of a large number of trace elements when passing through lakes is evident though in the FA, where lake surface coverage plots opposite to many of those elements. Forest volume does not respond in a similar systematic fashion and, surprisingly, the amount of wetland does not relate strongly to either Fe or TOC at any of the rivers. A better understanding of the quantitative removal of organic carbon and iron will aid in understanding trace element fluxes from landscapes rich in organic matter and iron
Government size, composition of public expenditure, and economic development
This paper analyzes the effects of government size and of the composition of public expenditure on economic development. Using the system-GMM estimator for linear
dynamic panel data models, on a sample covering up to 156 countries and 5-year periods from 1980 to 2010, we find that government size as a percentage of GDP has a quadratic (inverted U-shaped) effect on the growth rate of the Human Development Index (HDI). This effect is especially pronounced in developed and high income countries. We also find that the composition of public expenditure affects development, with the share of five
subcomponents exhibiting non-linear relationships with HDI growth.COMPETE, QREN, FEDER, Fundação para a CiĂȘncia e a Tecnologia (FCT
Diaper dermatitis prevalence and severity : global perspective on the impact of caregiver behavior
Objectives
To compare prevalence and severity of diaper dermatitis (DD) in infants and toddlers (babies) across three countries (China, USA, and Germany), including diapered skin measures and caregiver practices.
Methods
A crossâsectional study of 1791 babies (~600 from each country) was recruited at each clinical site. Based on regional toiletâtraining habits, exclusively diaperâwearing infants were recruited between ages 2â8 months in China and 2â18 months in the USA and Germany. DD was measured, as well as skin pH, transepidermal water loss (TEWL), and relative humidity (RH) in the diapered region. Caregiver habits were collected via a questionnaire and included information on hygienic practices.
Results
Diaper dermatitis was highest in the perianal area, followed by the intertriginous, genital, and buttock regions. In general, DD was significantly lower in babies in China, highest in Germany, and intermediate in the USA. This rank ordering of DD by geography was also observed in baby age 2â8 months. The lower DD observed in China was associated with lower skin pH and TEWL on diapered skin and decreased RH in the diaper. Chinese caregivers had the highest rate of prophylactic topical product usage, the most robust cleaning of the diapered area, lack of cleansing after urineâonly diaper changes, and Chinese infants spent the least time in an overnight diaper.
Conclusions
These data suggest caregiver behaviors including prophylactic use of topical products, thorough cleaning after stooling and reduced time in an overnight diaper are associated with less DD, lower superficial skin pH, and enhanced skin barrier
Regional assessment of the current extent of acidification of surface waters in Europe and North America
The current status of surface water acidification related to air pollution in Europe and North America has been assessed using country reports, monitoring data, critical loads and exceedance data, acid sensitivity and deposition maps, and data reported under the European Commissionâs Water Framework Directive (WFD). Acidification is still observed in many countries, but the extent and severity vary. Maps of acid sensitivity and deposition suggest that surface water acidification is present in regions and countries for which no data or reports were delivered for the current assessment. Existing national monitoring varies in the ability to assess the spatial extent of acidification and the recovery responses of acidified sites. The monitoring requirements under the European Unionâs National Emission Ceilings Directive are expected to reverse the recent decline in the number of monitoring sites observed in some countries. The information reported under the WFD is currently of limited value in assessing the extent of acidification of surface waters in Europe. Chemical recovery in response to reductions in acid deposition can be slow, and biological recovery can lag severely behind. Despite large and effective efforts across Europe and North America to reduce surface water acidification, air pollution still constitutes a threat to freshwater ecosystems
Comportamento de cultivares de pepino (Cucumis sativus L.) em duas Ă©pocas de semeadura
Plant development and fruit production of cucumber cultivars 'Marketer IAC- 2 2 0 5 ' , 'Palomar IAC- 3 0 5 0 ' , 'Santee IAC- 2 4 4 1 ' , 'Verde Paulistano IAC-1336' and 'Aodai 1 - 4 3 2 1 ' were compared under two sowing dates, 5 t n of May and 5 t n of December of 1970 in Campinas, SP, Brazil, in a Yellow Red Latossol. Air temperature ranged from 1 2 , 0°C to 26, 8°C in the first period of culture, and from 18,5°C to 30,2°C in the second period. Adequate cultural practices were provided. When the first female flower appeared in the field, insecticides and fungicides applications were interrupted. For all cultivars, yields were higher and fruit quality was better in the first period of culture. Both in May and December cultures, plants have concentrated their highest yields between the third and the penultima te harvesting dates. 'Santee' presented low yields and the quality of its fruits was poor. 'Aodai' showed the best results as to fruit yield and fruit quality. Yields of the other cultivars were similar. 'Verde Paulistano' presented the latest fruit production. 'Marketer' showed a relatively uniform behaviour in both periods of culture. There were found positive correlations between yield in each harvesting date and total yield, total yield and marketable yield, number of fruits and fruits weight, plant height and yield, and number of lateral branches and yield. The relation between marketable and total yield, and fruit average weight, decreased at the end of the plants cycle.O desenvolvimento e a produção de frutos para consumo in natura dos cultivares de pepino 'Marketer IAC-2205', 'Palomar IAC-3050', 'Santee IAC-2441', 'Verde Paulistano IAC-1386' e 'Aodai 1-4321' foram estudados em duas Ă©pocas de semeadura, 5 de maio e 5 de dezembro, em Campinas, SP. Para todos os cultivares, as plantas semeadas em dezembro cresceram mais e desenvolveram-se com maior rapidez que as plantas semeadas em maio; entretanto, as produçÔes das plantas semeadas em maio foram maiores e a qualidade de seus frutos foi superior. Tanto para as plantas semeadas em maio como para as semeadas em dezembro, 'Santee' apresentou produçÔes baixas e frutos de mĂĄ qualidade. 'Aodai' foi o cultivar mais produtivo e seus frutos foram os de melhor qualidade. As produçÔes dos demais cultivares foram equivalentes. 'Verde Paulistano' apresentou a produção mais tardia. 0 comportamento de 'Marketer' foi pouco afetado pelas variaçÔes ambientais. As maiores produçÔes de todos os cultivares, nas duas Ă© poças, foram obtidas entre a terceira e a penĂșltima colheitas. Foram encontradas correlaçÔes positivas entre a produção de cada colheita e a produção total, entre a produção total e a produção comerciĂĄvel, entre o nĂșmero de frutos e seu peso, entre produção e a altura da planta e entre produção e nĂșmero de ramos laterais da planta. A relação entre produçÔes comerciĂĄvel e total e o peso mĂ©dio dos frutos diminuĂram no final do ciclo das plantas
Temporal coherence of physical, chemical and biological variables in four tropical lakes (Minas Gerais, Brazil)
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