Results 81 to 90 of about 1,866,979 (302)

The “Bitul B’shishim (one part in sixty)”: is a Jewish conditional prohibition of the Talmud the oldest-known testimony of quantitative analytical chemistry?

open access: yesSubstantia, 2018
Accomplishments of Hellenistic science and technology in some fields, such as mathematics, physical cosmology and engineering, has recently been re-evaluated and can be considered as of the same level that the scientific revolution in Western Europe ...
Federico Maria Rubino
doaj   +1 more source

Cell surface interactome analysis identifies TSPAN4 as a negative regulator of PD‐L1 in melanoma

open access: yesMolecular Oncology, EarlyView.
Using cell surface proximity biotinylation, we identified tetraspanin TSPAN4 within the PD‐L1 interactome of melanoma cells. TSPAN4 negatively regulates PD‐L1 expression and lateral mobility by limiting its interaction with CMTM6 and promoting PD‐L1 degradation.
Guus A. Franken   +7 more
wiley   +1 more source

Response of Two Different Strains of Commercial Broilers to Different Dietary Amino Acid Allowance

open access: yesMedia Peternakan, 2009
The response of Cobb and Ingham strain commercial broilers to a range of dietary amino acids in a factorial experiment (2 strains x 2 sexes x 3 dietary treatments) with 3 replicates was evaluated. A total of 180 birds was sexed and weighed at one-day-old
B. Indarsih
doaj  

Random site dilution properties of frustrated magnets on a hierarchical lattice

open access: yes, 2012
We present a method to analyze magnetic properties of frustrated Ising spin models on specific hierarchical lattices with random dilution. Disorder is induced by dilution and geometrical frustration rather than randomness in the internal couplings of the
Berker A N   +6 more
core   +2 more sources

PARP inhibition and pharmacological ascorbate demonstrate synergy in castration‐resistant prostate cancer

open access: yesMolecular Oncology, EarlyView.
Pharmacologic ascorbate (vitamin C) increases ROS, disrupts cellular metabolism, and induces DNA damage in CRPC cells. These effects sensitize tumors to PARP inhibition, producing synergistic growth suppression with olaparib in vitro and significantly delayed tumor progression in vivo. Pyruvate rescue confirms ROS‐dependent activity.
Nicolas Gordon   +13 more
wiley   +1 more source

Motility of boar spermatozoa supplemented with homologous seminal plasma of high or low protein content after storage for three days

open access: yesVeterinární Medicína, 2016
The effect of adding high or low protein content homologous seminal plasma to boar spermatozoa on the progressive motility of the spermatozoa after storage for three days, and at a 1 : 4 dilution ratio was investigated. A total of 32 ejaculates collected
J. Apic   +6 more
doaj   +1 more source

Metastability in the dilute Ising model [PDF]

open access: yes, 2011
Consider Glauber dynamics for the Ising model on the hypercubic lattice with a positive magnetic field. Starting from the minus configuration, the system initially settles into a metastable state with negative magnetization.
A Bianchi   +21 more
core   +2 more sources

LDAcoop: Integrating non‐linear population dynamics into the analysis of clonogenic growth in vitro

open access: yesMolecular Oncology, EarlyView.
Limiting dilution assays (LDAs) quantify clonogenic growth by seeding serial dilutions of cells and scoring wells for colony formation. The fraction of negative wells is plotted against cells seeded and analyzed using the non‐linear modeling of LDAcoop.
Nikko Brix   +13 more
wiley   +1 more source

THE INFLUENCE OF GEOLOGY AND ORE DEPOSIT OCCURRENCE CONDITIONS ON DILUTION INDICATORS OF EXTRACTED RESERVES

open access: yesRudarsko-geološko-naftni Zbornik, 2019
The development of iron-ore deposits is accompanied by the excavation formation of considerable dimensions in the underground space and to ensure high technical and economic indicators of extraction, especially when developing high-grade iron ore, it is ...
Mykhailo Petlovanyi   +4 more
doaj   +1 more source

Dilute Quantum Droplets [PDF]

open access: yesPhysical Review Letters, 2002
In the limit when the two-body scattering length $a$ is negative and much larger than the effective two-body interaction radius the contribution to the ground state energy due to the three-body correlations is given by the Efimov effect. For particular values of the diluteness parameter $ |a|^3$ the three-body contribution can become the dominant term
openaire   +3 more sources

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