Results 61 to 70 of about 147,245 (289)

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Peranan Simbol Benda-Benda Langit Dalam Perkembangan Religi Masyarakat Di Indonesia

open access: yesBerkala Arkeologi, 1999
Celestial objects are always present in the form of symbols depicted in rock paintings, nekara, megalithic concepts, symbols of royal triumph and in conventional myths as can be found in the ethnographic data of several tribes in Indonesia.
nfn. Hartatik
doaj   +3 more sources

Metastasis on pause: How dormant tumor cells stay hidden within the tumor microenvironment and evade immune surveillance

open access: yesMolecular Oncology, EarlyView.
Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary   +1 more
wiley   +1 more source

Dependency of geodynamic parameters on the GNSS constellation [PDF]

open access: yes, 2017
Significant differences in time series of geodynamic parameters determined with different Global Navigation Satellite Systems (GNSS) exist and are only partially explained.
Arnold, Daniel   +11 more
core   +2 more sources

Vortage passieren lassen: Skizzen zu Transfers zwischen Ort und Zeitbezug in Uwe Johnsons Jahrestagen in Hinsicht auf Prag // Letting Preceding Days Pass: Sketches on the Transfers between Locality and Time-Anchoring in Uwe Johnson’s Anniversaries — with Regard to Prague [PDF]

open access: yesSlovo a Smysl, 2015
The paper concentrates on selected passages from Uwe Johnsonʼs opus magnum, Jahrestage (Anniversaries), in which the Prague Spring and the events of 1968 play a key role, and develops some ideas on how narrations of history and critique of language can
Nils Plath
doaj  

Intrapatient tumour heterogeneity and clonal evolution in an autopsy study of metastatic salivary gland cancer

open access: yesMolecular Oncology, EarlyView.
Tumour heterogeneity and clonal evolution of metastatic salivary gland cancer were evaluated in two patients with adenoid carcinoma and one patient with myoepithelial carcinoma. Radiology‐guided autopsy enabled multi‐region sampling (total samples n = 149), followed by whole‐genome sequencing and phylogenetic reconstruction (17 tumour samples, 4–7 per ...
Gerben Lassche   +10 more
wiley   +1 more source

Evolution of Spaceborne SAR Missions in Earth Orbit

open access: yesRemote Sensing
A truly operational SAR was first flown in space in 1978 on board the Seasat satellite. Since then, its utilization first expanded to Canada, Europe and Japan, and then to countries with emerging space industries later on. Many technological developments
Marco D’Errico
doaj   +1 more source

Bridging the gap: a genetically validated avian chorioallantoic membrane platform for investigation of spontaneous circulating tumor cells

open access: yesMolecular Oncology, EarlyView.
We established the avian chorioallantoic membrane (CAM) assay as a scalable in vivo model for studying circulating tumor cells (CTCs). Human gastrointestinal tumors spontaneously released genetically validated CTCs that were detected across multiple platforms, demonstrating that the CAM model provides an accessible tool for investigating early cancer ...
Dennis Roth   +17 more
wiley   +1 more source

RAIM Algorithms Analysis for a Combined GPS/GALILEO Constellation [PDF]

open access: yes, 2005
How far a user can rely on his navigation system is a central question for safety of life applications like air navigation especially in approach phases. For Oceanic, En route or Non Precision Approach phases, the integrity requirements as defined by
Gass, Frédéric, Belabbas, Boubeker
core  

The map of constellation features in two embedded dimensions.

open access: yes, 2022
All plots show the same embedding. One point represents one constellation. (top) The gradient of each constellation feature, as projected in the low-dimension space. Twelve constellation features are shown. (bottom) A summary of the clusters.
Doina Bucur (9155202)
core   +1 more source

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