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Leachate nitrate concentrations under fabric were not different from those in untreated soil
At Santa Maria, nitrate nitrogen levels in leachate collected at 8-inch depth on all sampling dates ranged from 12 to 27 parts per million in PAM and untreated plots, which was 52% to 80% greater than those in other treatments . At Somis a similar trend was observed: nitrate nitrogen levels in leachate under PAM and untreated…
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Dissolved Cu+ released by some Cu NPs is readily oxidized to Cu2+ and then complexed in the environment
A recent study showed that the release from paints is ~3 to 27 μg/cm2 ·day, or in other terms, around 0.2 to 1.8% of the Cu NPs present in the paint were released in 180 days . Cu concentrations in water near the painted material can range from 40 to 630 mg/L; Cu can be…
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The filtrate was used for the NP dissolution and aggregation experiments
Recently, nano-Mn3O4 was applied to leaves by spraying a suspension of 20 mg/L, after 20 days from the sowing of the seeds of squash plants until 40 days from sowing,improving the growth plant yield but decreasing the yield of fruit. Another study reported that nano-Mn2O3 applied at 6 mg/kg/plant promoted nutrient fixation in wheat, but…
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Such studies are needed to definitively establish weather size is important
A problem in conducting realistic toxicity studies is the likely transformation of the free particles into homo or heteroaggregates or even organic complexes in the real environment. There have been few studies that investigated the impact of size across a wide range of systematically varied particle sizes within a single study.On the other hand coating…
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Copper detoxification seems to be linked to mechanisms that bind Cu to molecular thiol groups
Underdeveloped feed value chains dominated by artisanal and small-scale producers are also important constraints to feed development in LMIC. Fig. 1 shows a typical LMIC feed value chain with emphasis on the weakest linkages that need development and the strongest ones that need to be enhanced. The feed value chains in LMIC are characterized by: limited…
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The resulting product is an ethyl or methyl ester and crude glycerin
The fraction of the adsorbed NO that is reduced depends on the temperature and the flow rate of N2 gas. Fig.10 shows the fraction of the desorbed NO integrated over the temperatures as the temperatures of the carbon bed was raised. As can be seen, the fraction of the total NO desorbed as NO reaches…
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The rising food prices strongly affected access to food by the poor
Among the studies on LSLAs and land grabbing, an alternative hypothesis has developed: what if the main driver of the contemporary global land rush were the need for water rather than for land? . Dell’Angelo et al. have described a “global water grabbing syndrome” to take into account the increasing dynamics of freshwater appropriation occurring as…
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The rice genome was partitioned into a set of coherent classes in a two-step process
First, the epigenomic datasets were used to infer a small set of chromatin states. Then, in a second step, these states were intersected with transcriptomic and annotation data to generate a more nuanced global classification. The first step employed a hidden Markov modeller ChromHMM to binarize chromatin signals and produce alow-resolution map of chromatin states across…
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Attention should focus on shaping the view of plants as essential tools for understanding cell biology in general
The online infrastructure should include a list of reporter lines that are valuable for cell-type/cluster annotation of single-cell RNA sequencing data and gold-standard datasets for teaching and developing new methods.Finally, the database should incorporate cell-type marker genes and their corresponding orthologs, expressologs, and matches across species, synteny maps of good markers, and a repository to…
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This lack of mass reduction may be attributed to the time duration allotted to lunar food production
This benefit results from reducing the launch mass cost of complete nitrous oxide –hydrocarbon propellant delivery.However, as described in §S3, the overall mass and time costs render nitrous oxide –hydrocarbon bio-manufacture impractical for now.It is expected that near-future space synthetic biology efforts on methanogenic bacteria will concentrate on minimizing nutrient use and improving bioreactor nutrient…