Results 31 to 40 of about 14,183,882 (362)

Observational constraints on the linear fluctuation growth rate [PDF]

open access: yesPhys.Rev.D77:083508,2008, 2007
Several experiments in the near future will test dark energy through its effects on the linear growth of matter perturbations. It is therefore important to find simple and at the same time general parametrizations of the linear growth rate. We show that a simple fitting formula that generalizes previous expressions reproduces the growth function in ...
arxiv   +1 more source

Vitamin D Metabolism and Effects on Pluripotency Genes and Cell Differentiation in Testicular Germ Cell Tumors In Vitro and In Vivo

open access: yesNeoplasia: An International Journal for Oncology Research, 2012
Testicular germ cell tumors (TGCTs) are classified as either seminomas or nonseminomas. Both tumors originate from carcinoma in situ (CIS) cells, which are derived from transformed fetal gonocytes.
Martin Blomberg Jensen   +6 more
doaj   +1 more source

A "morphogenetic action" principle for 3D shape formation by the growth of thin sheets [PDF]

open access: yesarXiv, 2023
How does growth encode form in developing organisms? Many different spatiotemporal growth profiles may sculpt tissues into the same target 3D shapes, but only specific growth patterns are observed in animal and plant development. In particular, growth profiles may differ in their degree of spatial variation and growth anisotropy, however, the criteria ...
arxiv  

Self-Reported Asthma Is Associated with Reduced Sperm Count—A Cross-Sectional Study of More than 6000 Young Men from the General Population

open access: yesLife, 2023
Asthma is driven by an inflammatory response that may impact testicular function. In this cross-sectional study, we investigated the association between self-reported asthma and testicular function (semen parameters, reproductive hormone levels), and ...
Marc K. Pedersen   +6 more
doaj   +1 more source

General law of growth and replication. Growth equation and its applications [PDF]

open access: yesBiophysical Reviews and Letters, 2012 Vol. 7, No. 1-2, p. 71-120, 2012
We present significantly advanced studies of the previously introduced physical growth mechanism and unite it with biochemical growth factors. Obtained results allowed formulating the general growth law which governs growth and evolutional development of all living organisms, their organs and systems.
arxiv   +1 more source

A high-throughput method for profiling fatty acids in plant seeds based on one-step acid-catalyzed methylation followed by gas chromatography-mass spectrometry

open access: yesBiotechnology & Biotechnological Equipment, 2021
Fatty acids (FAs) in oilseeds are important for human health. Gas chromatography-mass spectrometry (GC-MS) is a popular analytical technology for FAs measurement. FAs need to be derivatized into fatty acid methyl esters (FAMEs), which is essential for GC-
Shuai Xiao   +5 more
doaj   +1 more source

Growth and Growth Factors [PDF]

open access: yes, 2008
The last year has again seen some major advances in the Growth and Growth Factors field. Significant advances have been made in our understanding of the genetics of growth. For example, mutations in the pericentrin gene PCNT are associated with both primordial dwarfism and Seckel syndrome.
Mehul T. Dattani, Evelien F. Gevers
openaire   +3 more sources

Doping dependence of the vortex glass and sublimation transitions in the high-$T_{c}$ superconductor La$_{2-x}$Sr$_{x}$CuO$_{4}$ as determined from macroscopic measurements

open access: yes, 2004
Magnetization and ac-susceptibility measurements are used to characterize the mixed phase of the high-temperature cuprate superconductor La$_{2-x}$Sr$_{x}$CuO$_{4}$ over a large range of doping (0.075 $\leq x\leq$ 0.20).
Abrikosov   +47 more
core   +2 more sources

Consequences of Kaizen Practices in MSMEs in the Philippines: The Case of the Manufacturing Productivity Extension Program (MPEX) [PDF]

open access: yes, 2020
The Manufacturing Productivity Extension Program (MPEX) is a fully subsidized public-instigated productivity improvement program directed toward the micro, small, and medium enterprise (MSME) sector.
A Fadahunsi   +20 more
core   +2 more sources

Ultra-wide bandgap, conductive, high mobility, and high quality melt-grown bulk ZnGa2O4 single crystals

open access: yesAPL Materials, 2019
Truly bulk ZnGa2O4 single crystals were obtained directly from the melt. High melting point of 1900 ± 20 °C and highly incongruent evaporation of the Zn- and Ga-containing species impose restrictions on growth conditions.
Zbigniew Galazka   +11 more
doaj   +1 more source

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