Examples are presented to show that disparate radiometric ages are inevitable and to be expected where mixing of waters of markedly different ages occurs. 展开 关键词: Ground Water High-Level Radioactive Wastes Yucca Mountain Age Estimation Carbon 14 Chlorine 36 Ground Disposal Site Characterization ...
Results of carbon-13 n.m.r. spectroscopy in the field of cyclic conjugated π-electron systems The theoretical basis for the interpretation of C chemical shifts is reviewed briefly. Possible ring current contributions to the shielding of the C nucleus are discussed in detail with examples from th...
Still, it remains a debate after four decades of research on surviving cells, several bacterial species were naturally inducted and found to exist in a viable but non-culturable (VBNC) state, an adaptive strategy executed by most bacterial species under different stressful conditions. VBNC state ar...
Melatonin, the ‘hormone of darkness’ is a neuronal hormone secreted by the pineal gland and other extra pineal sites. Responsible for the circadian rhythm and seasonal behaviour of vertebrates and mammals, melatonin is responsible for regulating various physiological conditions and the maintenance of ...
The Late Cretaceous was a time of high eustatic sea level that enabled extensive epicontinental seaways and carbonate platforms across the Tethyan Realm, providing favorable habitats for oyster communities to flourish. This study focuses on the Campanian
Previous studies of carbon, hydrogen and sulfur isotopes as well as biomarker compounds demonstrated that the gypsum-salt rock series could act as hydrocarbon sources. 6. Conclusions There was a consensus that the gypsum-salt rock series could be regarded as good caprocks, further explorations and...
The one non-smoker had an occupational exposure to the fumes of solder flux. The sex distribution was equal with an age range of 32-65 years. Two patients were clubbed. Lung function tests showed both restrictive and obstructive patterns together with severe reductions in carbon monoxide transfer...
(FBS) at a temperature of 37 °C in a humidified incubator with 5 % carbon dioxide (CO2) concentration. The MCF10a cells were cultured in a specialized culture medium. The cell culture experiments were conducted in triplicate, with three replicates per group for each repetition. The MCF7 ...
Hendry JI, Prasannan C, Ma F et al (2017) Rerouting of carbon flux in a glycogen mutant of cyanobacteria assessed via isotopically non-stationary 13C metabolic flux analysis. Biotechnol Bioeng 114(10):2298–2308. https://doi.org/10.1002/bit.26350 Article PubMed CAS Google Scholar Hendry ...
Parkinson S M, Jones R, Meharg A A, Wainwright M and Killham K 1991 The quantity and fate of carbon assimilated from14CO2 byFusarium oxysporum grown under oligotrophic and near oligotrophic conditions. Mycol. Res. 95, 1345–1349. Google Scholar Parmelee R W and Alston D 1986 Nematode trop...