causes and effects of the ozone hole over australia

Ngày tải lên: 12/08/2014, 23:24

Ngày tải lên: 12/08/2014, 23:24

Ngày tải lên: 17/08/2014, 14:56

Ngày tải lên: 01/11/2014, 21:22

... United States In the United States, the Clean Air Act mandates the protection of human health and welfare from the effects of exposure to tropospheric O 3 through the setting of primary and secondary ... summary of the findings of studies focusing on the interactive effects of O 3 and water stress, O 3 with NO x and/ or SO 2 ,O 3 with CO 2 and nitrogen, and O 3 with ammonia (NH 3 ). Studies on O 3 and ... followed ratification of the Convention, including the 1988 Protocol on the Control of Emissions of Nitrogen Oxides (NO x ) and their Transboundary Fluxes, and the 1999 Gothenburg Protocol to...

Ngày tải lên: 17/03/2014, 19:20

... capable of giving strength to the weary, vivacity to the stupid, and wisdom to men void of understanding; capable of soothing the sorrows of the afflicted, of healing the wounds of the spirit, and ... allay the horrors of tedium vitæ, or to drown the anguish of a guilty conscience. And may not many of these patients say to those of the Faculty, who give advice for the use of either these stimulants: ... stimulant and narcotic effects, they are not aware of the pernicious consequences. In the midst of interesting conversation, they frequently transcend the bounds assigned them by habit, and the consequence...

Ngày tải lên: 17/02/2014, 22:20

... these 21 consonants. On the other hand Regime 2 of Figure 3(a) as well as Regime 1 of Figure 3(b) comprises of the rest of the consonants. The point marked as x in both the figures indicates the ... corresponding to the nodes in the set V L and the other corre- sponding to the nodes in the set V C . Degree distribution of the nodes in V L : Fig- ure 2 shows the degree distribution of the nodes in ... as synthe- sis of the distribution of the consonants across the languages. In the current work, with the help of PlaNet we provide a systematic study of certain interesting features of the consonant...

Ngày tải lên: 08/03/2014, 02:21

... introduced alanine at these two positions, with the aim of determining whether any of the observed effects were a result of changes in the size and charge of the amino acid at these positions. Results Preliminary ... the conformation of this loop. Changes in the conformation of the backbone at this point and changes in the orientation of other side chains, as a result of the introduction of the large charged ... on the structure and function of yeast enolase will be similar to their effects on human bb-enolase. Figure 1 shows the basic fold of yeast enolase, including the location of the active site and glycines...

Ngày tải lên: 16/03/2014, 06:20

... 2005). Besides the direct impact of dioxins and furans on the human population and the environment of Guiyu, there is evidence of transport of PCDD/Fs and PBDD/Fs from the WEEE recycling site of Guiyu to the nearby ... indication of the seriousness of the pollution levels in the study sites selected and further to indicate the potential negative impact of these pollutants on the ecosystems and humans affected. The ... used, location of the study, recycling technique used and date of the publication are compiled in Table 1. The following section discusses the concentrations of each of the chemical compounds found from the literature...

Ngày tải lên: 23/03/2014, 04:20

... like) and bound with their long axis perpendicular to the plane of the lipid membrane. Furthermore, the 4.7 nm thick- ness of the peptide layer indicates that the hydropho- bic tail of the peptide ... SM-rich environment and occurs largely on the bilayer surface in the absence of cholesterol. The presence of cholesterol facilitates peptide insertion into the bilayer and promotes the aggregation ... microdomain formation a small amount of SM and cholesterol is mixed into the DOPC portion of the bilayer, and a small amount of DOPC and choles- terol is mixed into the SM-enriched microdomain [35]. Peptide...

Ngày tải lên: 30/03/2014, 11:20

... 0.04 and 0.66 ± 0.05 in the absence and presence of 0.8 m TMAO, respectively. The reduction in the GTPase activity of FtsZ in the presence of TMAO may be partly due to the solvo- phobic effects of ... increasing concentration of urea in the absence and presence of TMAO. The D m values for the urea-induced unfolding of FtsZ were found to be 1.8 and 3.6 m in the absence and presence of TMAO, respectively. Furthermore, TMAO ... microscopy analysis of the FtsZ assembly reaction showed the formation of thicker and larger bundles of FtsZ proto- filaments in the presence of TMAO compared with the control (Fig. 6). The widths of the bundles...

Ngày tải lên: 30/03/2014, 16:20

... under the age of 21. They are interested in protecting property and reducing the costs spent on health care and crime. These are goals shared by most of the public, and research ... age and other outcomes; that is, as the legal age was lowered, the number of problems increased, and as the legal age was raised, the number of problems de- creased. Of ... was used, neither found significant inverse or positive relationships between the legal age and other problems. Finally, of the 61 analyses of other health and social problems,...

Ngày tải lên: 02/06/2014, 09:38

... FVV conceived of the study, participated in its design and coordination, and wrote this manuscript. All authors have read and approved the final manuscript. Competing interests The authors declare that they ... for a more complete understanding of its mechanisms of action and ther efo re, for a better assessment of its anti- tumor efficacy. The experimental hepa tic colonization of B16 mela- noma (B16M) ... appears to depend on the remarkable inhibitory effect of RVL on the proangiogenic effects of tumor- activated hepatic myofibroblasts [18]. In summary, this study uncovers multiple therapeutic intervention...

Ngày tải lên: 18/06/2014, 19:20

... the calculation of the infarct volumes and participated in the statistical analysis of the data. OSL, EM and BLF partici- pated in the design and coordination of the study, reviewed the data, provided ... in the statistical analysis, reviewed the data and drafted the manuscript. NHM performed the evaluation of neurological deficits and rotarod performance. AGF and MGC performed the calculation of ... [12]. In the model of transient focal ischemia, the time window of nimesulide's neuroprotection extends over a 24 h period [12], and in other models of cerebral ischemia, the time window of protection...

Ngày tải lên: 19/06/2014, 22:20

... for the highest net profit and investment return of the treatment T3. The stocking biomass of 0.2 kg.m2 therefore, was recommended to maximize profit of the clam cultivation. Establishment of ... showed in the table 7. The net profit calculated base on the output cost and input cost and price of the clam. The main cost in M. lyrata cultivation was the expense in seed purchase. Cost of seed ... The survival rate of the stocking biomass of 0.3 kg.m -2 however, was significant lower than the others and the highest net profit as well as investment return therefore, was obtained at the...

Ngày tải lên: 21/06/2014, 05:20

... evalua te the effect of stocking biomass of the two sizes of M. lyrata on growth performance and survival to enhance the production and profit of cultivation. The other parameters within the culture ... evaluation The estimation of the economic benefit of clam cultured in the intertidal areas is showed in table 7. The net profit is calculated based on the output cost and input cost and price of the ... Sout h of Vietnam. Due to high consumption demand, the intertidal areas are being used for the cultivation of M. lyrata and these practices expanded to the northern CARD 027/05 VIE – Development of...

Ngày tải lên: 22/06/2014, 12:20

... Observatory of Women's Health of the Ministry of Health and Social Policy of Spain. WHO is grateful for the contributions of the authors of the individual chapters as well as the comments ... al., 2008) .The authors hypothesized that the differential of SO 2 exposure between areas might explain the differences observed in the effects but they also evoked the role of other health ... Multilevel Annual average of NO 2 estimated for the points of the 100 m grid that were the closest to the building of residence and school of attendance Annual mean of income of subjects aged...

Ngày tải lên: 28/06/2014, 23:20

... > 500 account for the rate of 5,2% and 10,2%. A number of the patients with the number of CD4 cells <100 only are 18,3% at the period of 6 months and 6,9% at the period of 12 months after ... p<0,001. After 6 and 12 months of ARV treatment, rates of the patients with the number of CD4 cells from 100 to 500 are : 76,5% and 82,5%. A number of the patients with the number of CD4 cells ... taken immediately and count the time for the next dosage (82.7%), 16.3% of them skip the missed dosage and take the next dosage as usual, 1.0% of them did not know what to do when they missed one...

Ngày tải lên: 25/07/2014, 13:57

Ngày tải lên: 07/08/2014, 03:22