Sentences with phrase «present at higher concentrations»

Not exact matches

But while hard water is a bit of a gamble, depending on which minerals are present in higher concentrations, soft water seems to have no benefits at all.

Pooling samples provided sufficient protein mass for effective downstream proteomics analysis following immunoaffinity depletion of the 14 most abundant proteins present (representing approximately 95 % of the total protein mass in CSF), reducing the dynamic range of protein concentrations present in CSF, where proteins with highest concentrations mask proteins at lower concentrations from detection.

The scientists at EMSL laboratories tested an ionic silver solution and a high particulate colloidal silver for bacteriology effectiveness after being exposed to HCL (stomach acid) of 3600 ppm, a concentration which is typically present in the stomach.

* Oddly enough, however, the experiments with fresh pancreatic islets and fat cells taken from the mice suggested that the positive effects of uncarboxylated osteocalcin on insulin only occurred at concentrations extremely low compared to those of undercarboxylated osteocalcin normally present in mice, while the effects on adiponectin and energy expenditure only occurred at normal to high concentrations.

Breastfed babies need to start eating high quality solid foods around 6 months, ideally while continuing to breastfeed, because certain nutrients (including iron, zinc, and vitamin D) are present at low concentrations in breast milk.

A diagnosis of diabetes is confirmed if glucose is present in the urine and its also at a persistently high concentration in the blood.

Based on these 591 species, we project present - day endemic diversity to peak at 340 species per km2, with the highest concentrations from southern Northwest California through most of Central Western California and in the foothills of the Sierra Nevada (Fig. 1B).

Quantitatively, Vasskog et al. estimate that during this time (the prior interglacial) the GrIS was «probably between ~ 7 and 60 % smaller than at present,» and that that melting contributed to a rise in global sea level of «between 0.5 and 4.2 m.» Thus, in comparing the present interglacial to the past interglacial, atmospheric CO2 concentrations are currently 30 % higher, global temperatures are 1.5 - 2 °C cooler, GrIS volume is from 7 - 67 % larger, and global sea level is at least 0.5 - 4.2 m lower, none of which observations signal catastrophe for the present.

The present concentration is the highest during at least the last 800,000 years.»

The present concentration is higher than at any time in the last 800,000 years, and potentially the last three to 20 million years.»

Taken together, the average of the warmest times during the middle Pliocene presents a view of the equilibrium state of a globally warmer world, in which atmospheric CO2 concentrations (estimated to be between 360 to 400 ppm) were likely higher than pre-industrial values (Raymo and Rau, 1992; Raymo et al., 1996), and in which geologic evidence and isotopes agree that sea level was at least 15 to 25 m above modern levels (Dowsett and Cronin, 1990; Shackleton et al., 1995), with correspondingly reduced ice sheets and lower continental aridity (Guo et al., 2004).

Present CO2 concentrations are higher than any time in at least the last 650,000 years (IPCC, 2007).»

In this paper, we present results from a natural archive that provides a unique history of gaseous elemental mercury concentrations at middle and high northern latitudes.

Water vapour must be the major temperature forcer because it present in air at a much higher concentration than CO2.

However, note that past CO2 concentrations have never been as high as they are at present (currently above 360 ppm), which changes the basic conditions under which our climate operates and makes it difficult to base future predictions on past behavior.»