Results 71 to 80 of about 960,188 (308)

Organic farming and resource efficiency [PDF]

open access: yes, 2011
The Chapter discusses the efficiency of nutrient and energy use in organic farming, regarding the pressing need to make efficient use of natural resources.
de Neergaard, Andreas, Oelofse, Myles
core  

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

open access: yesFEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point   +7 more
wiley   +1 more source

Recycling of phosphorus and ammonia nitrogen from digestate [PDF]

open access: yes, 2018
Digestate from biogas plants, formed by dewatering anaerobically stabilized sludge, is characteristic of high concentrations of phosphates and ammonia nitrogen suitable for further use.
Calábková, Katrin   +3 more
core  

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

open access: yesFEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon   +6 more
wiley   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

open access: yesFEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn   +4 more
wiley   +1 more source

Effect of Nitrogen Fertilizer Dose and Application Timing on Yield and Nitrogen Use Efficiency of Irrigated Hybrid Rice under Semi-Arid Conditions [PDF]

open access: yes, 2019
Nitrogen fertilizer is the major input in rice production and the optimum rate and application timing management assure profitability and sustainability of the production system.
Ametonou, F.Y.   +5 more
core  

Quantitative Population Epigenetics a Catalyst for Sustainable Agriculture [PDF]

open access: yes, 2013
Ecological intensification of agricultural practices can be a minimum input agriculture with a maximum utilization of the epigenetic potential for a maximum output.
Stauss, R.
core   +3 more sources

Nitrogen use efficiency by cotton varieties

open access: yesRevista de Ciências Agrárias, 2013
This study aimed to evaluate the nitrogen use efficiency by different cotton varieties in an Acrisol. The design was com- pletely randomized in a 5x2x5 factorial. The factors consisted of five nitrogen rates (0, 250, 500, 750 and 1000 mg dm-3 of soil), two cotton genotypes (FiberMax 910 and FiberMax 966) and five repetitions, using urea as source N (45%
Araújo, Érica de Oliveira   +2 more
openaire   +3 more sources

PARP inhibitors induce a senescence phenotype in non‐small cell lung carcinoma cell lines

open access: yesFEBS Open Bio, EarlyView.
Talazoparib is the most potent inducer of senescence among different PARP1 inhibitors in human NSCLC cells. In the absence of PARP, no senescence phenotype was observed, demonstrating that PARP1 is necessary for the induction of senescence by this inhibitor.
Camille Huart   +7 more
wiley   +1 more source

Robust relationship between yields and nitrogen inputs indicates three ways to reduce nitrogen pollution

open access: yesEnvironmental Research Letters, 2014
Historic increases in agricultural production came at the expense of substantial environmental burden through nitrogen pollution. Lassaletta et al (2014 Environ. Res. Lett.
Benjamin Leon Bodirsky   +1 more
doaj   +1 more source

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