Results 111 to 120 of about 116,169 (348)

A Political Meaning of “Scientific Philosophy”? The Case of Edgar Zilsel

open access: yesPhilosophia Scientiæ, 2018
Many scholars in the philosophy of science and the HOPOS community today appear to be keen for their expertise to be relevant to public concerns and debates.
Oliver Schlaudt
doaj   +1 more source

Electricity Generation From Ambient Water Evaporation in the Absence of Sunlight via PVA‐Based Porous Hydrogels

open access: yesAdvanced Functional Materials, EarlyView.
In this article, a water‐evaporation driven energy harvester is devised that works even in the absence of sunlight. This is achieved by combining PVA hydrogel with thermoelectrics (TEG) to directly capture energy from water evaporation. Under mild conditions (RH 40%, T of 26 °C, and 2.8 m s−1 wind), 1.71 mW (1.02 W m−2) power can be generated, >3 fold ...
Zichen Gong, Ady Suwardi, Jing Cao
wiley   +1 more source

Commentary [PDF]

open access: yes, 2009
Enforceable promises discourage lying, cheating, and stealing. Contracts that embody such promises shape institutions, distribute power, and organize markets.
Gelpern, Anna
core   +1 more source

Ab Initio Study on 3D Anisotropic Ferroelectric Switching Mechanism and Coercive Field in HfO2 and ZrO2

open access: yesAdvanced Functional Materials, EarlyView.
This study uncovers a new switching mechanism in HfO2 and ZrO2, where the absence of a non‐polar layer along the a‐direction induces interaction between polar layers. Consequently, the switching barriers for growth are lower than those for nucleation in this direction, leading to a size‐dependent coercive field that matches experimental observations ...
Kun Hee Ye   +6 more
wiley   +1 more source

Economic Freedom: Theory First, Empiricism After [PDF]

open access: yes
The aim of this paper is to argue in favor of theoretically well-founded empirical examinations on how economic freedom affects economic performance, which is not the case, as we argue, in most of the huge empirical literature developed after the ...
Judit Kapás, Pál Czeglédi
core  

Understanding the Chemical and Electronic Properties of Sub‐Monolayer TiO2 on High Surface Area Silica for Jet Fuel Synthesis Applications

open access: yesAdvanced Functional Materials, EarlyView.
Sub‐monolayer titania grafted onto mesoporous silica enables solvent‐free photocatalytic upgrading of furfural and cyclopentanone into jet fuel precursors. Advanced spectroscopic methods reveal tunable surface speciation, acidity, and bandgaps, enhancing catalytic efficiency.
Mark A. Isaacs   +12 more
wiley   +1 more source

Empiricism: How much, how little

open access: yesOnline Journal of Health & Allied Sciences, 2004
The practice of medicine was completely empirical in the beginning and the growth of technology added newer tools to the diagnostic kit. As the kit grew larger, there was a reciprocal diminution in the empiricism. The practice of medicine at the extremes
Ramesh Babu Kurnool
doaj  

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

open access: yesAdvanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu   +5 more
wiley   +1 more source

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