Results 81 to 90 of about 1,754,714 (305)

Spiral shocks and the formation of molecular clouds in a two phase medium

, 2007
We extend recent numerical results (Dobbs et. al. 2006) on molecular cloud formation in spiral galaxies by including a multi-phase medium. The addition of a hot phase of gas enhances the structure in the cold gas, and significantly increases the fraction
Allen, Audit, Bate, Benz, Bergin, Blitz, Bonnell, Bonnell, C. L. Dobbs, Cox, Cox, Dobbs, Dobbs, Engargiola, Gibson, Gibson, Gittins, Glover, Glover, Heitsch, Heyer, I. A. Bonnell, Kaufman, Kim, Kim, Klaassen, Le Petit, Lequeux, Mac Low, Monaghan, Monaghan, Ostriker, Piontek, Pringle, Solomon, Thacker, Vazquez-Semadeni, Vazquez-Semadeni, Vogel, Wada, Wada, Wada, Williams, Williams, Wolfire   +44 more
core   +2 more sources

Design of a Nanometric AlTi Additive for MgB2-Based Reactive Hydride Composites with Superior Kinetic Properties [PDF]

, 2018
Solid-state hydride compounds are a promising option for efficient and safe hydrogen-storage systems. Lithium reactive hydride composite system 2LiBH4 + MgH2/2LiH + MgB2 (Li-RHC) has been widely investigated owing to its high theoretical hydrogen-storage
Akiba, Etsuo, Castro Riglos, Maria Victoria, Dornheim, Martin, Emmler, Thomas, Gericke, Eike, Gharibdoust, Seyedhosein Payandeh, Hoell, Armin, Jensen, Torben R., Karimi, Fahim, Klassen, Thomas, Krumrey, Michael, Le, Thi-Thu, Milanese, Chiara, Pistidda, Claudio, Puszkiel, Julián Atilio, Richter, Bo, Santoru, Antonio, Skibsted, Jørgen   +17 more
core   +2 more sources

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

Molecular 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, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

New hydrogen-bonding organocatalysts: Chiral cyclophosphazanes and phosphorus amides as catalysts for asymmetric Michael additions

Beilstein Journal of Organic Chemistry, 2014
Ten novel hydrogen-bonding catalysts based on open-chain PV-amides of BINOL and chinchona alkaloids as well as three catalysts based on rigid cis-PV-cyclodiphosphazane amides of N1,N1-dimethylcyclohexane-1,2-diamine have been developed.
Helge Klare, Jörg M. Neudörfl, Bernd Goldfuss   +2 more
doaj   +1 more source

Dual PI3K/AKT and CDK4/6 inhibition reveals selective sensitivity in an SHH medulloblastoma stem cell model

Molecular Oncology, EarlyView.
Targeted therapy was evaluated in SHH medulloblastoma using neuroepithelial stem cell (NES) and tumor‐derived NES‐like (tNES) models in 2D monolayers and 3D spheroids. PI3K, AKT, and CDK4/6 inhibitors had minimal effects in NES but markedly reduced viability and growth and induced apoptosis in tNES cells, revealing distinct therapeutic vulnerabilities.
Monika Lukoseviciute, Madeleine Birgersson, Paolo Ceriani, Margareta Wilhelm, Ourania N Kostopoulou   +4 more
wiley   +1 more source

Enhancing Diesel Engine Performance Through Hydrogen Addition

Fire
This study evaluates the potential of hydrogen as a clean additive to conventional diesel fuel. Experiments were carried out on a single-cylinder, air-cooled diesel engine under half- and full-load conditions, across engine speeds ranging from 1000 to ...
Sahbi Ben Abdelwahed, Fakher Hamdi, Mehrez Gassoumi, Ilham Yahya, Noomen Moussa, Nashmi H. Alrasheedi, Ridha Ennetta, Borhen Louhichi   +7 more
doaj   +1 more source

Reactions at surfaces studied by ab initio dynamics calculations

, 1998
Due to the development of efficient algorithms and the improvement of computer power it is now possible to map out potential energy surfaces (PES) of reactions at surfaces in great detail.
Gross, Axel
core   +1 more source

CCDC80 suppresses high‐grade serous ovarian cancer migration via negative regulation of B7‐H3

Molecular Oncology, EarlyView.
PAX8 is a lineage‐specific master regulator of transcription in high‐grade serous ovarian cancer (HGSC) progression. We show for the first time that PAX8 facilitates proliferation and metastasis by repressing the cell autonomous tumor suppressor CCDC80 and inducing B7‐H3 expression.
Aya Saleh, Nitzan Medina‐Itzhaki, Milena Chekov, Eden Gal‐Swisa, Roba Gabesh‐Wahabi, Inbar Savyon, Inna Naroditsky, Hilary A. Kenny, Basem Fares, Lina Korsensky, Einav Girsh, Liron Berger, Ruth Perets   +12 more
wiley   +1 more source

Titanium as a Potential Addition for High-Capacity Hydrogen Storage Medium

Journal of Nanotechnology, 2012
We study the adsorption of hydrogen molecules on a titanium atom supported by a benzene molecule using generalized gradient corrected Density Functional Theory (DFT).
Filippo Zuliani, Leonardo Bernasconi, Evert Jan Baerends   +2 more
doaj   +1 more source

The Effect of Hydrogen addition on the Explosion of Ethanol/Air Mixtures

Chemical Engineering Transactions, 2012
The use of hydrocarbon-hydrogen mixtures has been proven to be a valuable system for emission reduction and flame stabilisation. For the assessment of process hazards and the safe design of process equipment handling ethanol-hydrogen, the knowledge of ...
F. Cammarota, A. Di Benedetto, V. Di Sarli, E. Salzano   +3 more
doaj   +1 more source