Results 111 to 120 of about 3,524,192 (311)

Poverty and Philanthropy: Strategies for Change [PDF]

open access: yes, 2008
This paper traces the economic and social trends that help explain the persistence of poverty, describes some of the unintended consequences of public policies that have exacerbated the challenges facing poor families, and discusses four overarching ...
Gordon Berlin
core  

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán   +13 more
wiley   +1 more source

Berlin edema: about a case

open access: bronze, 2023
Claudia Mieles Velásquez
openalex   +2 more sources

Chinese Spoken Document Summarization Using Probabilistic Latent Topical Information [PDF]

open access: yes
[[abstract]]The purpose of extractive summarization is to automatically select a number of indicative sentences, passages, or paragraphs from the original document according to a target summarization ratio and then sequence them to form a concise summary.
Chen, Berlin
core  

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

open access: yesAdvanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey   +12 more
wiley   +1 more source

Ally Sloper: The First Comics Superstar? [PDF]

open access: yes, 2003
This book is the result of the conference ‘Comics Scenarios: Cultural Analyses of a Picto-Graphical Medium’, organised by the Universities of Berlin and Viadrina, and held in Berlin in 2003.
Sabin, Roger
core  

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

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