Results 161 to 170 of about 83,494 (318)

Price Competition and Product Differentiation when Goods have Network Effects [PDF]

open access: yes
The objective of our approach is to develop a model which captures horizontal product differentiation under environmental awareness, product innovation under network effects, and price competition whereby environmentally friendly products are costlier to
Klaus CONRAD
core  

Highlighting Recent Progress in Fiber Energy Harvesters: From Working Principles to Future Perspectives

open access: yesAdvanced Science, EarlyView.
Fiber energy harvesters offer unprecedented flexibility and a unique capacity for integration into commercial textiles, overcoming the limitations of bulky and rigid conventional devices. This review summarizes recent advances in fiber‐based energy harvesting and provides strategic outlooks to accelerate technological progress in the field. ABSTRACT As
Hanhwi Jang   +8 more
wiley   +1 more source

Midbrain PAG Astrocytes Modulate Mouse Defensive and Panic‐Like Behaviors

open access: yesAdvanced Science, EarlyView.
Astrocytes in the midbrain periaqueductal gray (PAG) dynamically encode threat intensity and shape defensive action selection in mice. Real‐time Ca2+ imaging reveals robust astrocytic activation during predator odor and CO2 exposure. Aberrant astrocytic Ca2+ overactivation disrupts goal‐directed escape, biases behavior toward freezing, and induces ...
Ellane Barcelon   +10 more
wiley   +1 more source

Carburetors for automobile engines.

open access: yesCarburetors for automobile engines.
種別 ...
openaire  

Mileage of Motor Vehicles in 2004 Higher Than Ever Before [PDF]

open access: yes
2003 saw a slight decline in the mileage of vehicle kilometers driven annually by all German road passenger and freight vehicles. This development did not continue in 2004; instead the mileage, at 697 billion vehicle kilometers, was higher than ever ...
Hartmut Kuhfeld, Uwe Kunert
core  

Bufalin Inhibits the PI3K/AKT Pathway by Targeting GTF3C4 to Impede Breast Cancer Progression

open access: yesAdvanced Science, EarlyView.
Mechanisms of Bufalin‐Mediated Intervention in Breast Cancer. ABSTRACT Breast cancer incidence is rising globally, presenting challenges such as treatment side effects and drug resistance. Bufalin is a bufadienolides compound with potential anti‐cancer effects. This study shows that bufalin inhibits malignant proliferation of MDA‐MB‐231 and MCF‐7 cells
Siyu Guo   +15 more
wiley   +1 more source

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