Results 11 to 20 of about 971,458 (301)

Adhesive and mechanical regulation of mesenchymal stem cell differentiation in human bone marrow and periosteum-derived progenitor cells [PDF]

open access: yesBiology Open, 2012
Summary It has previously been demonstrated that cell shape can influence commitment of human bone marrow-derived mesenchymal stem cells (hBMCs) to adipogenic, osteogenic, chondrogenic, and other lineages.
Jeroen Eyckmans   +2 more
doaj   +4 more sources

Using Reappraisal to Improve Outcomes for STEM Teachers and Students

open access: yesJournal of Cognition, 2023
The many stressors associated with teaching can take a toll, resulting in high levels of burnout among teachers and reduced motivation and academic performance among students.
Lital Daches Cohen   +2 more
doaj   +1 more source

Comparison of Norway spruce (Picea abies [L.] Karst.), Scots pine (Pinus sylvestris L.) and European larch (Larix decidua Mill.) stem shape by means of geometrical methods

open access: yesJournal of Forest Science, 2006
In this article the stem shape is compared in three coniferous tree species: Norway spruce, Scots pine and European larch. Stem is investigated by means of geometrical methods.
M. Křepela, R. Petráš
doaj   +1 more source

Point distribution form model for spruce stems (Picea abies [L.] Karst.)

open access: yesJournal of Forest Science, 2002
The paper deals with the construction of a point distribution form model for spruce stems. This model is based on the principal components analysis of variance-covariance matrix formed for the Procrustes residuals.
M. Křepela
doaj   +1 more source

Understanding and Overcoming Immunosuppression Shaped by Cancer Stem Cells

open access: yesCancer Research, 2023
Abstract Use of immunotherapy in recent years has revolutionized cancer treatment for certain types of cancers. However, the broad utility of immunotherapy is limited because there are still many types of cancer that do not respond effectively.
Linheng Li, Roy A. Jensen
openaire   +2 more sources

Mechanical adaptations of cleavers (Galium aparine) [PDF]

open access: yes, 2004
• Background and Aims Cleavers (Galium aparine) is a fast-growing herbaceous annual with a semi-self-supporting, scrambling-ascending growth habit. Mature plants often use upright species for support. It is common in hedgerows and on waste ground. This
Goodman, A. M.
core   +1 more source

Possible methods of Norway spruce (Picea abies[L.] Karst.) stem shape description

open access: yesJournal of Forest Science, 2005
The paper shows a possibility of using Bookstein coordinates for stem shape studies. Bookstein coordinates are simplified to stem shape diameters, for which tests of multidimensional normality, variance-covariance matrix homogeneity, equality of mean ...
M. Křepela, D. Zahradník, J. Sequens
doaj   +1 more source

Femoral stem neck geometry determines hip range of motion shape: a computer simulation study

open access: yesBone & Joint Research, 2021
Aims: In computer simulations, the shape of the range of motion (ROM) of a stem with a cylindrical neck design will be a perfect cone. However, many modern stems have rectangular/oval-shaped necks. We hypothesized that the rectangular/oval stem neck will
Aidin Eslam Pour   +5 more
doaj   +1 more source

Physico-electrochemical Characterization of Pluripotent Stem Cells during Self-Renewal or Differentiation by a Multi-modal Monitoring System. [PDF]

open access: yes, 2017
Monitoring pluripotent stem cell behaviors (self-renewal and differentiation to specific lineages/phenotypes) is critical for a fundamental understanding of stem cell biology and their translational applications.
Horner, Christopher B   +7 more
core   +3 more sources

A contribution to the knowledge of Scots pine (Pinus sylvestris L.) stem shape

open access: yesJournal of Forest Science, 2004
This is a study on the evaluation of stem shape in Scots pine. The experiments were carried out on 430 stems without bark, taken from 30 fully analysed sample trees that grew in 5 different locations in the Czech Republic. Generalized Procrustes analysis
M. Křepela, J. Sequens, D. Zahradník
doaj   +1 more source

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