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1 at resides between Asp-222 and the pyridinyl nitrogen.
2 tion of NO3(-) is anisotropic and minimal on nitrogen.
3 lic exchange of electrons, carbon, and fixed nitrogen.
4 re observed in both bioreactors in excess of nitrogen.
5 removed more than 85% of the total inorganic nitrogen.
6 on of a rosemary extract and packaging under nitrogen.
7 attack by the only weakly nucleophilic amide nitrogen.
8 to the control for creatinine and blood urea nitrogen.
9 arization transfer catalyst to hyperpolarize nitrogen-15 in a variety of molecules with SABRE-SHEATH
11 2O accumulation (8.5.3 +/- 0.9% of the total nitrogen added), which was linked to the depletion of C1
12 tional density functional theory methods and nitrogen adsorption methods altogether, for studying the
14 epals) decreased under high density, whereas nitrogen allocation to male organs (stamens) decreased u
15 this cycle, we combined carbon (delta(13)C), nitrogen amino acid (delta(15)NPhe), and Hg isotope (Del
16 tase (ASNS, which converts glutamine-derived nitrogen and aspartate to asparagine) impaired EC sprout
19 u concentration; thus, we propose that these nitrogen and carboxyl functionalities of aromatic compou
21 Human urine contains a high concentration of nitrogen and is therefore an interesting source for nutr
22 or novel thieno-fused five- and six-membered nitrogen and oxygen heterocycles such as thieno[3,2-b]py
23 studies of classical examples like molecular nitrogen and oxygen, benzene, naphthalene and their azad
24 Heterogeneous soil resources, such as water, nitrogen and phosphate, also act as signals that shape 3
26 d by excess loading of macronutrients (e.g., nitrogen and phosphorus) from fertilizers, fossil fuels,
29 ps that are efficient in acquiring and using nitrogen and that can achieve high seed yields with redu
32 man urine contains significant amounts of N (nitrogen) and P (phosphorus); therefore it has been succ
34 ating and -withdrawing groups, halogens, and nitrogen- and oxygen-containing heterocycles, as well as
36 udy reports the effect of different doses of nitrogen applied to soil and/or leaves of Syrah and Char
38 h the basic ion mobility equation when using nitrogen as drift gas and also agree with a combination
40 oss four trophic modes, proteins involved in nitrogen assimilation and light-independent chlorophyll
41 on of genes encoding high substrate affinity nitrogen assimilation enzymes (GS-GOGAT system) was simi
44 se newly formed bound residues contained one nitrogen atom and had a molecular mass between 375 and 5
46 t and modifiable Lewis acids centered on the nitrogen atom, which provide stable and well-characteriz
54 l consists of sequential Pd-catalyzed carbon-nitrogen bond formation followed by Lewis acid catalyzed
58 is-189 also increase the pKa of the pyridine nitrogen but, more significantly, influence the position
63 analysis indicates that for both carbon- and nitrogen-centered radicals, which have relatively early
67 similar in growth-limiting and non-limiting nitrogen concentrations in P. ruminicola 23, whereas E.
69 precursor gases, such as sulphuric acid and nitrogen- containing highly oxidised organic compounds,
70 ction is compatible with various oxygen- and nitrogen-containing functional groups and afforded the c
72 e organic molecules that contain one or more nitrogen-containing moieties, and broadly applicable and
73 centration, and between camera-NDVI and leaf nitrogen content, though weaker relationships between ca
76 est that, in the presence of glucose, carbon/nitrogen cross-talk is likely involved in the response t
77 mium, is an integral component of the marine nitrogen cycle and contributes significant amounts of ne
78 ped to quantify anthropogenic impacts on the nitrogen cycle do not explicitly consider nitrate stored
79 fuelled by chemoautotrophic production and a nitrogen cycle dominated by nitrogen loss processes usin
81 complete understanding of global carbon and nitrogen cycling and a reduction in the uncertainty of c
82 sults of these incubations shed new light on nitrogen cycling complexity and possible factors underly
83 l factors and anammox was the most sensitive nitrogen cycling pathway responding to variation of the
84 of the microbiome of H. heliophila represent nitrogen cycling taxa that have the potential to contrib
89 thropogenic influences of climate change and nitrogen deposition in these systems is critical to impr
92 cing sugars, ethanol, acetic acid, and amino nitrogen did not differ significantly (p<0.05) between c
95 tellite-based measurements of urban form and nitrogen dioxide (NO2) to explore relationships between
96 r (PM10; </=10 mum in aerodynamic diameter), nitrogen dioxide (NO2), and carbon monoxide (CO) and ris
97 whereas among 2,136 boys, sulfur dioxide and nitrogen dioxide exposure in utero, during infancy, and
100 ive degree of carbon substrate and amount of nitrogen dopants (i.e., graphitic nitrogen) were modulat
101 ckel nanoparticles encapsulated in few-layer nitrogen-doped graphene (Ni@NC) are synthesized by using
102 uctosyl amino-acid oxidase (FAO) immobilized nitrogen-doped graphene/gold nanoparticles (AuNPs)/fluor
103 elf-assembly technology for the synthesis of nitrogen-doped ordered mesoporous polymers (N-OMPs) is d
105 the CO2 to CO electrocatalysis of metal- and nitrogen-doped porous carbons containing catalytically a
106 cally thin layer-by-layer mesoporous Co3 O4 /nitrogen-doped reduced graphene oxide (N-rGO) nanosheets
112 ly in the expression of nifH - essential for nitrogen fixation - and could be visualised using marker
113 c interactions can lead to wide variation in nitrogen fixation efficiency, and it is not uncommon tha
114 dicates the potential to estimate biological nitrogen fixation of legume symbioses not only in labora
115 mplete a highly efficient chemical cycle for nitrogen fixation that is mediated by a set of well-char
116 atmosphere, requiring a biologic cycle with nitrogen fixation, nitrification and denitrification.
120 legume nodules, rhizobia differentiate into nitrogen-fixing forms called bacteroids, which are enclo
123 he symbiotic interaction between legumes and nitrogen-fixing soil bacteria results in a specialized p
124 preconcentration of melamine, a non-protein nitrogen food additive from complex matrices was synthes
126 en cyanide (HCN) as the source of carbon and nitrogen for the synthesis of nucleotide, amino acid and
127 d transient storage of inorganic and organic nitrogen forms are evaluated, as is how they affect nitr
130 psis presents recent amination methods using nitrogen-heteroatom bonds as a powerful and versatile pl
131 Formal hydrogen atom abstraction from the nitrogen-hydrogen bonds in purine nucleosides produces r
132 are utilized mainly for removal of excessive nitrogen in generalists but for nitrogen assimilation in
133 oated by oligolysines to 0.5:1 N:P (ratio of nitrogen in lysine to phosphorus in DNA), are stable in
134 f which requires deprotonation of the indole nitrogen in Trp during its attack on methylcobalamin.
137 put not only reduced the discrepancy between nitrogen inputs and outputs (9.9 kg ha(-1) yr(-1) and 6.
139 coli and Salmonella spp. responses to excess nitrogen involve only low substrate affinity enzymes.
140 Critically, the majority of wheat grain nitrogen is derived from amino acids remobilized from ve
143 couple records of ocean redox chemistry with nitrogen isotope ((15)N/(14)N) values from approximately
144 , we measured the naturally occurring stable nitrogen isotope (delta(15) N) patterns that differentia
145 eciation, redox-sensitive trace element, and nitrogen isotope data from a Neoproterozoic (Marinoan) g
149 reefs across scales by analyzing the stable nitrogen isotopic (delta(15)N) values of the scleractini
150 vational range) and widths of the carbon and nitrogen isotopic niches (which estimates the diversity
151 y Miocene (18-20 Ma) corals exhibit the same nitrogen isotopic ratio offset identified in modern cora
152 reduce ground-layer community-weighted plant nitrogen, leading to the strong stoichiometric convergen
155 cA enables a more differentiated response to nitrogen limitation and can be advantageous in native ha
157 ption are upregulated by increased salinity, nitrogen limitation and lower temperatures in our model
163 heric nitrous oxide (N2O) has been linked to nitrogen loading, predicting emissions remains difficult
165 A second low-lying dark state, involving the nitrogen lone pair (nNpi*), does significantly participa
166 rgies indicated weak interaction between the nitrogen lone pair and proximal radical center in angula
167 production and a nitrogen cycle dominated by nitrogen loss processes using newly available marine oxi
171 ctors had more significant correlations with nitrogen metabolism than physicochemical factors and ana
173 depleted B. subtilis speD mutant uncovered a nitrogen-, methionine-, and S-adenosylmethionine-suffici
174 ponses of soil fauna, microbial biomass, and nitrogen mineralization shifted from neutral to negative
177 nk organs and their importance in regulating nitrogen movement in support of metabolism, and vegetati
178 s idea, we coupled an optimality-based plant nitrogen (N) acquisition model with a microbe-focused so
179 ls predict that vertical gradients of foliar nitrogen (N) allocation, increasing from bottom to top o
180 Spatial patterns and temporal trends of nitrogen (N) and phosphorus (P) deposition are important
181 watershed inputs, outputs, and retention for nitrogen (N) and phosphorus (P) in seven subwatersheds o
182 ion, Microcystis populations were under dual nitrogen (N) and phosphorus (P) stress, as genes involve
183 Efficient recycling of subducted sedimentary nitrogen (N) back to the atmosphere through arc volcanis
185 groups produced root litter that had higher nitrogen (N) content, decomposed faster and resulted in
186 d in water table lowering (WTL) and enhanced nitrogen (N) deposition in Tibetan alpine wetlands.
189 ent that enables direct energy recovery from nitrogen (N) in three steps: (1) ammonium oxidation to n
191 pinned by a core SDGVM hypothesis that plant nitrogen (N) status is inversely related to increasing c
193 demand for other resources such as water and nitrogen (N), however, the magnitude and direction of ob
197 analysis exhibited higher reduction of NO to nitrogen (N2) comparing to the predictions by the kineti
200 imized reaction conditions, a broad range of nitrogen nucleophiles and carbon electrophiles are compa
207 rge number of drug or drug-like molecules in nitrogen on the widely available traveling wave IM-MS (T
208 RE) spectroscopy shows hyperfine coupling to nitrogen only when the amide precursor is used, consiste
210 Adding N2O and N2 effluxes to catchment nitrogen output not only reduced the discrepancy between
211 (-1) yr(-1), respectively), but also between nitrogen outputs from two catchments with different topo
213 or pellet exhaust components (including high nitrogen oxide (NOx), primary particles, or a combinatio
214 hich is of relevance as a catalyst in, e.g., nitrogen oxide emission abatement for environmental prot
216 ste recycling strategy is described in which nitrogen oxides or nitric acid are directly employed in
218 e detection of the common biosignatures from nitrogen-oxygen rich terrestrial-type exoplanets includi
220 In cells grown in poor nitrogen medium, the nitrogen permease reactivator kinase (Npr1) inhibits TOR
221 ts of three principal fertilizer components (nitrogen, phosphorus and potassium) on the development o
223 of these hotspots, and the consequences for nitrogen processing, is still hindered by a paucity of a
224 tion-metal catalysts, ligands and additives, nitrogen-protecting groups, excess reagents and harsh wo
226 erolysis liberating an intermediate having a nitrogen radical moiety Fe(III)-N. and a phenoxyl anion.
227 rainfall, soil moisture (SM), the carbon to nitrogen ratio (C/N ratio), soil available phosphorus (S
228 al production of NO and increases oxygen and nitrogen reactive species, and (ii) l-citrulline can rev
229 for biotechnological applications involving nitrogen recovery from urine, and therefore, in this stu
231 de production, carbon dioxide reduction, and nitrogen reduction, where the development of improved ca
233 CheY, the N-terminal receiver domain of the nitrogen regulation protein NT-NtrC, and the sporulation
234 Anammox processes are increasingly used for nitrogen removal from anaerobic sludge digestion liquor.
236 itation/anammox can provide energy-efficient nitrogen removal from the main stream of municipal waste
238 d to determine if the ammonia removal, total nitrogen removal, and biomass growth rates at each scale
244 ons are based on a non-hygroscopic dilithium nitrogen-rich salt that serves as both oxidizer and red
245 in is vulnerable to inactivation by reactive nitrogen (RNS) and oxygen species (ROS) that covalently
246 ations reveal that the surface electron-rich nitrogen simultaneously facilitates the initial adsorpti
247 tained on the catalyst dominated with cobalt-nitrogen sites, confirmed by the advanced spectroscopic
252 rbohydrates (glucose, sucrose, fructose) and nitrogen sources (urea, NH4Cl) at various concentrations
254 igestion of various carbon substrates and/or nitrogen sources could alter monomeric saccharide compos
258 ention is being given to reactive oxygen and nitrogen species (RONS), initially generated upon plasma
259 ts were able to scavenge reactive oxygen and nitrogen species (ROS and RNS, respectively), to modulat
261 st transfers electrons to PMS through active nitrogen species and becomes a metastable state of the c
262 copherol is effective scavengers of reactive nitrogen species and prevents DNA bases nitration, what
263 gesting that HDM-induced reactive oxygen and nitrogen species can be neutralized by antioxidants.
264 ) as a "soft" activation agent that deposits nitrogen species exclusively on the surface of commercia
265 sensitivity to reactive oxygen and reactive nitrogen species, as well as increased DNA damage and im
270 ed with associated acyl chain editing during nitrogen stress, in contrast to an overall decrease in t
271 ntly reported that a variety of couplings of nitrogen, sulfur, oxygen, and carbon nucleophiles with o
272 undance, diversity and cycling of carbon and nitrogen than 'undisturbed' ecosystems, and that even if
273 ) system for determination of total Kjeldahl nitrogen (TKN) was developed for estimating total protei
274 e and contributes significant amounts of new nitrogen to oligotrophic, tropical/subtropical ocean sur
275 reaction conditions that aid coordination of nitrogen to Pd(II), which is rate limiting, and directly
278 geography, salinity and, to a lesser extent, nitrogen, to be strong determinants of community composi
284 ion metrics were mapped, and loci related to nitrogen uptake and floral organ development were locate
287 Using a quantum sensor associated with the nitrogen vacancy center in diamond, we experimentally de
290 ated by simulating quantum open systems with Nitrogen-Vacancy centers, which has become an increasing
291 s for controlling various coherence times of Nitrogen-Vacancy centers; our method is based on a hybri
292 incorporation into the hydrocarbon chain of nitrogen versus oxygen as a mode of ionization is also d
293 osystems are especially impacted by elevated nitrogen, we investigated controls on N2O production mec
295 amount of nitrogen dopants (i.e., graphitic nitrogen) were modulated by the calcination temperature.
296 -bonding species, such as pyrrolic/graphitic-nitrogen, were formed by replacing of oxygen-containing
297 orophylls, fresh organic matter, and organic nitrogen, whereas in winter, streams were high in phaeop
298 CA II via an interaction of the acidic ring nitrogen with the CA II active site zinc, as well as two
300 on/2,3-sigmatropic rearrangement, as well as nitrogen ylide formation followed by azetidine ring expa
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