Results 101 to 110 of about 12,258 (256)

Three main activities of the Department of Education of the Polish Space Agency for 2019-2020 [PDF]

open access: yes, 2020
Department of Education is one of the sixth departments in organizational structure of Polish Space Agency (POLSA)that was established by the Act of 26 September 2014.
P. Rudź   +5 more
core   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Laser Observations of GALILEO Satellites at the CBK PAN Astrogeodynamic Observatory in Borowiec

open access: yesRemote Sensing
The laser station (BORL) owned by the Space Research Centre of the Polish Academy of Sciences and situated at the Astrogeodynamic Observatory in Borowiec near Poznań regularly observes more than 100 different objects in low Earth orbit (LEO) and medium ...
Paweł Lejba   +5 more
doaj   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

Geoelectric fields and geomagnetically induced currents during the April 23–24, 2023 geomagnetic storm

open access: yesScientific Reports
We present a study on the dynamical variations of geoelectric fields E during the intense geomagnetic storm of April 23–24, 2023. The storm is caused by the interplanetary counterpart of a coronal mass ejection erupted from the Sun in association with an
Anna Wawrzaszek   +5 more
doaj   +1 more source

Every Wijsman topology relative to a Polish space is Polish [PDF]

open access: yesProceedings of the American Mathematical Society, 1995
Generalizing a result of G. Beer and a result of E. Effros, we show that if ( X, d ) is a separable and completely metrizable metric space, then the hyperspace of X endowed with the Wijsman topology is separable and completely metrizable.
openaire   +2 more sources

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

Ten years of Poland in the European Space Agency: perspectives for increased use of Earth observation satellite data

open access: yesMiscellanea Geographica: Regional Studies on Development
The article presents an assessment of Poland's participation in Earth observation programmes within its 10 years of membership in the European Space Agency (ESA).
Zieliński Hubert   +2 more
doaj   +1 more source

Subtle structure of streamers under conditions resembling those of Transient Luminous Events

open access: yesArchives of Mechanics, 2018
The paper presents a brief review of the observational facts related to plasma filamentation in astrophysics and the subtle structures of plasma in Transient Luminous Events (TLE’s) and an analysis of the physical mechanism that could contribute to ...
J.S. Błęcki, K.A. Mizerski
doaj   +1 more source

On the Cauchy integral theorem and Polish spaces

open access: yesNew Zealand Journal of Mathematics
We prove that if a continuous function $f$ in an open subset $U\subset\mathbb{C}$ is analytic in $U\setminus X$, where $X\subset U$ is a Polish space having characteristic system $(k,n)\in\mathbb N_0\times\mathbb N$, then the complex line integral of $f$ along the boundary of any triangle in $U$ vanishes.
Morales, Cristian López   +1 more
openaire   +2 more sources

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