Results 71 to 80 of about 1,927,053 (288)

Ko sta srp in kladivo izgubila moč : razkroj sovjetskega satelitskega sistema in demokratizacija srednje in vzhodne Evrope

open access: yesDileme, 2021
The contemporary discussion of democratic movements during the late 1980s and early 1990s stresses the need to place these phenomena in a broader context, comprising the prehistory, dating at least to the beginning of WWII, the dynamics of the processes ...
Aleš Maver
doaj   +1 more source

Continuous‐Flow Photocatalytic Degradation of Glyphosate and Aminomethylphosphonic Acid Under Simulated Sunlight with TiO2‐Coated Poly(vinylidene fluoride) Membrane

open access: yesAdvanced Functional Materials, EarlyView.
Glyphosate (GLY) and its primary metabolite, aminomethylphosphonic acid (AMPA), are photodegraded using a poly(vinylidene fluoride) membrane with immobilized titanium dioxide (PVDF‐TiO2) in a continuous flow‐through operation under solar light. At optimized conditions, the PVDF‐TiO2 membrane achieved 95% GLY and 80% AMPA removal with •O2− as the ...
Phuong B. Trinh   +4 more
wiley   +1 more source

Moments and saddles of heavy CFT correlators

open access: yesJournal of High Energy Physics
We study the operator product expansion (OPE) of identical scalars in a conformal four-point correlator as a Stieltjes moment problem, and use Riemann-Liouville type fractional differential operators to generate classical moments from the correlation ...
David Poland, Gordon Rogelberg
doaj   +1 more source

Strain‐Activated Photo‐Dehalogenation Unlocks Low‐Energy One and Two‐Photon 3D Microfabrication

open access: yesAdvanced Functional Materials, EarlyView.
5,14‐NMI‐Cz acts, conversely to its 7,10‐NMI‐Cz(7,10‐'dibromo‐2‐(2,6‐diisopropylphenyl)‐1H‐benzo[lmn]carbazolo[9,1‐bc][2,8]phenanthroline‐1,3(2H)‐dione) counterpart, as modular photoinitiator with panchromatic photoactivity, featuring a weak C–Br bond from geometric strain for efficient Type I & II initiation. These studies demonstrate applicability of
Kacper Piskorz   +10 more
wiley   +1 more source

Community Essay: Sustainable approach to automobile society in Japan

open access: yesSustainability: Science, Practice, & Policy, 2013
What is the difference between electric vehicles (EVs) in society and an EV society? “EVs in society” means simply the replacement of gasoline-powered cars with EVs without taking into consideration pervasive social issues.
Jun Fujimoto, Dean Poland
doaj  

Andachten und Konfirmation – die Kinderund Jugendbücher in Polen in den Jahren 1945–1949

open access: yesFolia Toruniensia, 2018
These/Ziel: Der Beitrag entstand aufgrund einer Analyse von Kinderund Jugendbüchern, die in Polen in den Jahren 1945–1949 veröffentlicht wurden und sich auf die Teilnahme der genannten Empfängergruppen an verschiedenen Kirchenandachten und der ...
Grażyna Lewandowicz-Nosal
doaj   +1 more source

‘Oxygen Bound to Magnesium’ as High Voltage Redox Center Causes Sloping of the Potential Profile in Mg‐Doped Layered Oxides for Na‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Na‐ion batteries ‐ Impact of doping on the oxygen redox: The sloping potential of NaMg0.1Ni0.4Mn0.5O2 above 4.0 V is caused by a new redox center (arising from the ‘O bound to Mg’), having a higher potential but being more irreversible compared to the ‘O bound to Ni’.
Yongchun Li   +12 more
wiley   +1 more source

Defining Geographic Communities [PDF]

open access: yes
The purpose of this paper is to provide a guide to concepts, ideas, and measurements of geographic communities. The paper investigates the various concepts of geographic communities found in the literature and reviews existing studies to determine how ...
David C. Maré, Michelle Poland
core   +3 more sources

Comparative life cycle assessment of current and future electricity generation systems in the Czech Republic and Poland [PDF]

open access: yes, 2018
Purpose The purpose of the study was to perform a comparative life cycle assessment of current and future electricity generation systems in the Czech Republic and Poland.
Blaut, Agata   +4 more
core   +1 more source

Powering the Future: A Cobalt‐Based Catalyst for Longer‐Lasting Zinc–Air Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A novel N‐doped graphitic shell‐encapsulated Co catalyst reveals superior bifunctional ORR/OER activity in alkaline media, empowering outstanding liquid and quasi‐solid‐state ZAB activity. The system delivers long‐term durability, a peak power density of 127 mW cm−2 and successfully powers an LED and a mini fan.
Manami Banerjee   +10 more
wiley   +1 more source

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