Results 21 to 30 of about 4,094,095 (307)

Geochemical discrimination of different magma series and their differentiation products using immobile elements

open access: yes, 1977
The abundance and distribution of selected minor and trace elements (Ti, Zr, Y, Nb, Ce, Ga and Sc) in fresh volcanic rocks can be used to classify the differentiation products of subalkaline and alkaline magma series in a similar manner to methods using ...
J. Winchester, P. Floyd
semanticscholar   +1 more source

Generation of High Quality Memory B Cells

open access: yesFrontiers in Immunology, 2022
Protection against pathogen re-infection is mediated, in large part, by two humoral cellular compartments, namely, long-lived plasma cells and memory B cells.
Takeshi Inoue   +4 more
doaj   +1 more source

DIFFERENTIAL FORMS ON DIFFERENTIAL SPACES

open access: yesDemonstratio Mathematica, 1994
Die Autoren definieren die wesentlichen Begriffe, um eine Analysis auf Differentialräumen \((M,C)\) zu konstruieren: \(k\)-Vektoren, Differentialformen, äußere Ableitung und Integration. Dabei gehen sie nicht vom üblichen Begriff des Tangentialvektors als Derivation auf \(C\) aus, sondern definieren ``glatte Halbkurven'' als glatte Abbildungen \([0,1[ \
Mąka, R., Urbański, P.
openaire   +2 more sources

Differential Invariants in a General Differential Geometry [PDF]

open access: yesProceedings of the National Academy of Sciences, 1937
The study of general differential geometries in which the "geometric space" is a Hausdorff topological space~), while the "coordinate space" i~ a Banach space 3), has been initiated recently by one of us ~). The theory includes as special cases not only the finite dimensional but also the infinite dimensional 5) Riemannian and Non-Riemannian geometries.
MichaI, A.D., Hyers, D.H.
openaire   +3 more sources

Analyze p53 degradation by 35S p53 Pulse Chase Analysis

open access: yesBio-Protocol, 2012
p53, is known as the guardian of the genome and as such requires exquisite regulation not only of its abundance but also its activity. The abundance of p53 can be modulated at the level of transcription, translation, and also via its degradation.This ...
Megan Astle   +2 more
doaj   +1 more source

Overcoming resistance to immune checkpoint therapy in PTEN-null prostate cancer by intermittent anti-PI3Kα/β/δ treatment

open access: yesNature Communications, 2022
Limited response to immune checkpoint inhibitors has been reported in patients with castration-resistant prostate cancer. Here the authors show that intermittent, but not continuous, treatment with an anti-PI3Kα/β/δ-inhibitor promotes anti-tumor immunity
Zhi Qi   +8 more
doaj   +1 more source

Differentiating the differential rotation effect

open access: yesActa Psychologica, 2012
As an observer views a picture from different viewing angles, objects in the picture appear to maintain their orientation relative to the observer. For instance, the eyes of a portrait appear to follow the observer as he or she views the image from different angles. We have explored this rotation effect, often called the Mona Lisa effect.
Evgenia, Boyarskaya, Heiko, Hecht
openaire   +2 more sources

Female Farm Workers in Morocco: Between Laborious Working Conditions and Environmental Challenges [PDF]

open access: yesE3S Web of Conferences, 2023
The present paper posits that female labor force in the Moroccan agricultural sector plays a crucial role in production and provides specific expertise, leading to an increasingly visible feminization of the sector.
Jehouani Rachida, Meryem Naji
doaj   +1 more source

Photon differentials [PDF]

open access: yesProceedings of the 5th international conference on Computer graphics and interactive techniques in Australia and Southeast Asia, 2007
A number of popular global illumination algorithms uses density estimation to approximate indirect illumination. The density estimate is performed on finite points -- particles -- generated by a stochastic sampling of the scene. In the course of the sampling, particles, representing light, are stochastically emitted from the light sources and reflected
Lars Schjøth   +3 more
openaire   +3 more sources

Genome and epigenome analysis of monozygotic twins discordant for congenital heart disease

open access: yesBMC Genomics, 2018
Background Congenital heart disease (CHD) is the leading non-infectious cause of death in infants. Monozygotic (MZ) twins share nearly all of their genetic variants before and after birth.
Guoliang Lyu   +11 more
doaj   +1 more source

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