Sentences with phrase «subpopulations within»

Test results were disaggregated by key student subgroups, such as ELLs and low - income students, and accountability targets were applied to these subpopulations within schools.

A significant need exists to enhance teachers» knowledge of mathematics content and instruction to address the learning needs of all students and to begin to ameliorate the performance differences between U.S. students and their international comparison groups, as well as between various subpopulations within the United States (Mullis et al., 2012; NCES, 2013).

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).

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.

We assess spontaneous and vaccine - induced immune responses against melanoma, and have a particular interest in developing methods for understanding functional subpopulations within melanoma and the optimal ways of targeting them therapeutically.

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

Our results led us to speculate that there might be a metastatic subpopulation within stem - like cancer cells since other studies have shown that CSC phenotype alone may exhibit invasive property in vitro but is inadequate to determine or predict in vivo metastasis.

The TATS project is one of many studies within the International Tobacco Control Policy Evaluation Project (ITC Project) to follow nationally representative cohorts of smokers, to measure psychosocial and behavioural impacts of tobacco control policies.17 However, it is the first to sample only a high - prevalence subpopulation within a country.18

Here, we describe the research methods used in the Talking About The Smokes (TATS) project, the first ITC Project study to sample only a high smoking prevalence subpopulation within a country; in this case, Aboriginal and Torres Strait Islander peoples.

Not exact matches

Further microevolution within these distinct subpopulations produces the more observable morphological features readily distinguishable as two distinct species, however, the actual speciation event took place in the initial microevolutionary change.

For example, a few mutations in a critical binding pocket within the gamete receptors (the proteins that allow a male gamete to adhere to a female gamete) of various invertebrate marine organisms (these organisms simply discharge their gametes into the water in a blind shotgun mating strategy) can produce a reproductive isolation event between subpopulations.

In the study, Stephen Maricich and colleagues identified a subpopulation of Atoh1 - expressing cells in hair and whisker follicles within mouse skin that exclusively give rise to Merkel cells during development and adulthood.

Strikingly, this cancer cell subpopulation displayed enhanced expression of Bcl - xL, strongly suggesting that the upregulation of this antiapoptotic protein also supports the survival of invasive cancer cells within patients.

Within tumors, there exists a subpopulation called the «cancer stem cells» (CSCs).

Fluorescent biosensors illuminate calcium levels within defined beta - cell endosome subpopulations.

Periosteum - derived MSCs comprise a significant subpopulation of cells within the periosteum, which develops during prenatal and postnatal stages.

Recent studies have described a subpopulation of cancer cells within tumors termed «cancer stem cells» (CSCs), which have stem - like properties such as self - renewal and the ability to differentiate into multiple cancer cell types [1 — 7].

When BubR1H / H; INK - ATTAC mouse bone marrow cells were pushed into senescence in vitro by the PPAR - γ - activating drug rosiglitazone, a subpopulation of the cells exhibited high levels of INK - ATTAC expression and GFP, coupled with SAβ - gal staining; subsequent to treatment with the INK - ATTAC activating drug, these cells rapidly entered into apoptosis, and within 48 h were either destroyed or in the cell death process.

Recent studies have described a subpopulation of cancer stem cells (CSC) within tumors, which have stem - like properties such as self - renewal and the ability to differentiate into multiple cell types.

HV cells cultured under self - renewing conditions were subjected to flow cytometry to separate Venus positive and negative ES cell subpopulations and injected into Rosa26 LacZ expressing blastocysts within 1 h of purification.

While it has been demonstrated previously that more differentiated cells demonstrate a lower reprogramming efficiency [11] and different somatic cell types possess differential reprogramming ability [12], [13], no study to date, to our knowledge, has identified subpopulations of cells within a primary cell population possessing differential reprogramming potential.

A unique focus of my work is on the impact of heterogeneity within tumors and tumor cell populations, including subpopulations commonly referred to as «cancer stem cells», on the immune response.

Within her work examining the broad and complex set of ecological factors that influence classroom quality, Natalia's concentration on immigrant - origin children focuses the lens on a subpopulation of a particular policy and public interest.

The results offer an assessment of the distribution of inherited disorders within purebred dogs and illustrate how mixed - breed and subpopulations of purebred dogs do not differ statistically in prevalence for certain disorders.