Sentences with word «subpopulation»

As I discussed in my last post, the Gulf of Boothia subpopulation in the central Canadian Arctic has the highest density of polar bears anywhere in the world.

Over the recent years, immense progress has been made in defining individual CD4 T cell subpopulations with distinct functional and developmental properties.

The ability to map «epigenomes» using such a small number of cells will be valuable to cancer research, since the epigenetic landscape is dramatically rearranged in cancer and contributes to phenomena driven by small subpopulations of cells, such as drug resistance and metastasis.

As cells divide and differentiate, changes in transcriptional profile occur, leading to considerable phenotypical diversities forming different subpopulation of cells and tissues in living organisms.

Several factors may contribute to differential opportunities to learn mathematics and, ultimately, discrepancies between students» mathematics achievement in the United States and their international counterparts (Mullis, Martin, Foy, & Arora, 2012), as well as between subpopulations within the United States (National Center for Education Statistics [NCES], 2013).

Monitoring of subpopulations by trapping confirms a continuing decline, except that abundance remains relatively high on Bruny Island.

Alternatives include collecting valuable data from subsistence harvests, using remote methods to track changes in habitat, and selecting specific subpopulations as indicators.

Biophysical properties and responses to glutamate receptor agonists of identified subpopulations of rat geniculate ganglion neurons

«These results provide an unprecedented window into the cellular dynamics of tumor evolution and suggest that interactions between subpopulations of tumor cell types contribute to metastatic progression from initial tumors,» Stanger said.

To compare the rate of proliferation under the same condition as the parental and hypoxia - exposed adherent cells, we plated the cycling hypoxia - selected subpopulation as adherent cells (adherent MDA - MB 231 F3 and adherent BCM2 F3) and measured the increase in cell numbers together with the other adherent cell populations.

While CER findings may not be used to determine Medicare coverage, they can be considered by the Centers for Medicare & Medicaid Services after public comment and the consideration of effects on subpopulations for which the findings may have limited validity.

Identifying Vulnerable Subpopulations for Climate Change Health Effects in the United States

Without intervention these forests will be fragmented, resulting in isolated subpopulations of the mangabey.

This is at least suggested by the observation that the mesenchymal subpopulation in the HMLE model remains viable upon most chemotherapeutic treatment regimens, under conditions that allowed the effective elimination of the epithelial population [7].

Collectively, our results support the idea that a stem - like subpopulation in the tumor could expand selectively in response to changes in the microenvironment.

Several recent subpopulation estimates have shown an increase between one estimate and another of greater than 30 % yet deemed not to be statistacally significant due to large margins of error.

This suggests that the size of the SB subpopulation declined between the late 1990s and 2006, although low precision in the previous estimate of 1,800 precluded a statistical determination.

Herlyn's working hypothesis is that defined tumor subpopulations are central to dormancy and drug resistance due to their slow turnover and their non-responsiveness to growth signals.

«On short time scales, we can have variable responses to the loss of sea ice among subpopulations of polar bears,» Laidre said.

These studies will lead to in - depth investigations of tumor heterogeneity and the dynamic regulation of genes that define subpopulations with specialized biologic functions.

The other subpopulation preferentially imports lactate, using it as the main energy source by harnessing part of the citric acid cycle.

As expected, this novel subpopulation showed increasing viability under hypoxia and the ability to proliferate as either an adherent monolayer or substrate - independent tumor spheres.

This is especially problematic when performing subpopulation studies on mixed samples as it is not informative regarding which cell responds to which drugs or clinical treatments.

In addition to miRNA200c and miR205, the cycling hypoxia - selected subpopulation showed decreased miR215 expression (Figure 6e).

Hence, BH3 mimetics might represent an attractive approach of eliminating resistant subpopulations of cancer cells, thereby targeting both tumor cell invasion and cancer relapse.

Based on nearly two decades of research, we believe that particular subpopulations of neurons have the unique ability to integrate and repair dysregulated neural circuits.

«Because the Hawaiian hoary bat is the only living native land mammal in Hawaii and it's on the U.S. Fish and Wildlife Service's endangered species list, we want to know everything possible about its genetic history, relationships to other bats and if there are unique subpopulations on different Hawaiian islands,» Russell said.

«We were able to boost fluorescence accumulation in the highly tumorigenic low - fluorescence glioma stem cell subpopulation using a clinically approved iron chelator,» co-corresponding author Kouichi Tabu says.

All nuclei of the cells are shown in blue and a certain leukocyte subpopulation in purple.

A large subpopulation of V1 interneurons also expresses the transcription factor Foxp2.

Therefore, we hypothesize that hypoxia / reoxygenation cycles may provide the driving force to select for a highly metastatic breast CSC subpopulation.

HV cells cultured under self - renewing conditions were subjected to flow cytometry to separate Venus positive and negative subpopulations within the SSEA - 1 positive fraction.

One subpopulation exhibits the Warburg effect, favoring glycolysis and generating lactate along with those useful intermediates.

Less is known about which subpopulations are more vulnerable to air pollution.

Additionally, identifying at - risk subpopulations within these areas and understanding what drives that risk is crucial.

ESSA legislation puts additional pressure on schools and districts to be accountable for raising graduation rates for students across subpopulations.

While the parental and hypoxia - exposed adherent cells display similar rates of proliferation, the cycling hypoxia - selected subpopulations grow slower as adherent cells and even slower as suspension cultures (Figure 4c).

If the current trend of overexploitation continues, it is certain that several subpopulations of S. leytensis will soon collapse.

As a result, tiger subpopulations also became significantly more fragmented, greatly increasing their threat of extinction in each individual forest and as a species.?

Heteroresistance is caused by a minor subpopulation of resistant bacteria which are genetically identical to the rest of the susceptible bacteria.

A T - cell marker panel that can identify subsets of tumor - associated T - cells allows scientists to identify and target subpopulations of T - cells playing unique roles in the immune response against a tumor.