Results 81 to 90 of about 1,145,330 (292)

Sedimentological and scanning electron microscopic descriptions of Afowo oil sand deposits, Southwestern Nigeria. [PDF]

open access: yes, 2017
Sedimentological and scanning electron microscopic analyses of some shallow reservoir tar sand samples in parts of Southwestern Nigeria were carried out with the aim of characterizing the reservoir properties in relation to bitumen saturation and ...
Akinmosin, Adewale, Melifonwu, Chioma V.
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

Long Term Global Ionospheric Total Electron Content Trend Analysis

open access: yesGeophysical Research Letters
Simulations based on physical models of the thermosphere‐ionosphere system suggest that the ionosphere will sink as the thermosphere cools and contracts in response to increasing greenhouse gas concentrations.
M. Paula Natali   +6 more
doaj   +1 more source

Transport, magnetic, and structural properties of La$_{0.7}$Ce$_{0.3}$MnO$_3$ thin films. Evidence for hole-doping

open access: yes, 2008
Cerium-doped manganite thin films were grown epitaxially by pulsed laser deposition at $720 ^\circ$C and oxygen pressure $p_{O_2}=1-25 $Pa and were subjected to different annealing steps. According to x-ray diffraction (XRD) data, the formation of CeO$_2$
Bals, S.   +8 more
core   +1 more source

Imaging ionospheric inhomogeneities using spaceborne synthetic aperture radar [PDF]

open access: yes, 2011
We present a technique and results of 2-D imaging of Faraday rotation and total electron content using spaceborne L band polarimetric synthetic aperture radar (PolSAR).
Chapman, B.   +4 more
core   +2 more sources

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

open access: yesMolecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat   +8 more
wiley   +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

ANALISA PERUBAHAN IONOSFER AKIBAT GEMPA MENTAWAI TAHUN 2010 (Studi Kasus : Kepulauan Mentawai, Sumatra Barat)

open access: yesJurnal Teknik ITS, 2017
Gempa merupakan fenomena alam akibat aktifitas tektonik yang sering terjadi di Indonesia. Sepanjang pulau Sumatra merupakan pertumbukan antara lempeng Indo-Australia dan lempeng Eurasia menjadikan Sumatra sebagai daerah paling aktif dengan aktifitas ...
Leni Septiningrum
doaj  

Regional Total Electron Content Disturbance During a Meteorological Storm

open access: yesAtmosphere
This study presents a comprehensive analysis of the impact of Storm Laura, which was observed over Europe and the Baltic Sea on 12 March 2020, on the thermosphere–ionosphere system.
Olga P. Borchevkina   +9 more
doaj   +1 more source

Total electron content variations in the ionosphere before the Colima, Mexico, earthquake of 21 January 2003 [PDF]

open access: yesGeofísica Internacional, 2005
Anomalous ionospheric variations associated with the process of strong earthquake (M>5) preparation has been fairly well established. To check possible ionospheric variations connected with the recent Colima earthquake, M=7.8, of 21 January 2003, the ...
G. Bisiacchi-Giraldi   +3 more
doaj  

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