Results 91 to 100 of about 10,477,825 (292)

Long-Term Variations in Background Bias and Magnetic Field Noise in HSOS/SMFT Observations

open access: yesUniverse
The Solar Magnetic Field Telescope (SMFT) at Huairou Solar Observing Station (HSOS) has conducted continuous observations of solar vector magnetic fields for nearly four decades, and while the primary optical system remains unchanged, critical components—
Haiqing Xu   +7 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Solar Proton Events Enhance Polar Upper Stratospheric Downward Transport: Evidence From Ozone‐Traced Descent

open access: yesGeophysical Research Letters
The Brewer‐Dobson circulation (BDC) is a fundamental driver of trace gas transport in the middle atmosphere. Direct quantification of its descent rate remains observationally challenging. Here, we leverage wintertime solar proton events (SPEs) as natural
Yuting Wang   +6 more
doaj   +1 more source

Statistical investigation of large geomagnetically induced current disturbance events: relationships with geomagnetic storms and interplanetary sources

open access: yesFrontiers in Astronomy and Space Sciences
IntroductionGeomagnetically induced currents (GICs) pose a critical space weather hazard to ground-based conductive infrastructure. Previous studies have commonly identified large GIC events using daily maximum amplitudes exceeding 10 A, a criterion that
Wenjin Zhao   +8 more
doaj   +1 more source

Differential expression of cancer‐related genes supports prediction of poor response to first‐line treatments in T‐ALL pediatric patients with high minimal residual disease

open access: yesMolecular Oncology, EarlyView.
In the present work, we have identified a transcriptional signature based on the differential expression of six genes (BCL2&MAST4, HSH2D&LAT2, METRN&PITPNM2) that would facilitate the early detection of T‐cell acute lymphoblastic leukemia (T‐ALL) patients prone to a poor treatment response and could be implemented at diagnosis, along with other risk ...
Antonio Lahera   +11 more
wiley   +1 more source

Review of recent observations of magnetic holes in the solar wind

open access: yesDiscover Space
Magnetic holes (MHs) are ubiquitous coherent structures within the solar wind, defined by localized depressions in the magnetic field. They are increasingly recognized as fundamental sites of energy conversion and particle energization, playing a crucial
C. Y. Li   +10 more
doaj   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

open access: yesMolecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

The story of space activities I.

open access: yesLélektan és hadviselés
For all countries, achieving technical excellence is a fundamental condition of space exploration. At the beginning of the space era, this was only a rivalry between the US and the Soviet Union. Today, many countries have the technical maturity to be able to develop an independent space programme.
openaire   +1 more source

Space Seeds Activity

open access: yes, 2009
Ensino Fundamental::Séries Finais::Ciências NaturaisEnsino Fundamental Inicial::Ciências NaturaisThe video shows an activity about the study of space seeds, specifically Arabidopsis seeds.
National Aeronautics and Space Administration (NASA)
core  

Submersible Space Training Suit Preliminary Test Results and Review

open access: yes
Immediate accessThis item is made available by the University of Arizona Center for Human Space Exploration (CHaSE) with support from the University of Arizona Libraries.
Smith, Cameron, Tresch, Trent
core   +4 more sources

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