Results 111 to 120 of about 6,006 (267)

Microbiologically influenced corrosion: looking to the future [PDF]

open access: yes, 2010
This review discusses the state-of-the-art of research into biocorrosion and the biofouling of metals and alloys of industrial usage. The key concepts needed to understand the main effects of microorganisms on metal decay, and current trends in ...
Héctor A. Videla, Liz K. Herrera
core   +2 more sources

APOE4 Exacerbates Cerebral Tau Pathology Through Cholesterol‐Induced Degradation of Phosphatase in Atherosclerosis

open access: yesCNS Neuroscience &Therapeutics, Volume 31, Issue 8, August 2025.
Cholesterol couples atherosclerosis (AS) and Alzheimer (AD) ‐like tau pathology in APOE4 carriers. Promoting cholesterol homeostasis was effective in alleviating tau pathology and decreasing the risk for AD in AS patients of APOE4 genotype. ABSTRACT Background Apolipoprotein epsilon4 allele (APOE4) is a common risk factor for atherosclerosis (AS) and ...
Jiuyang Ding   +8 more
wiley   +1 more source

Pulsed corona discharge for wastewater treatment and modification of organic materials [PDF]

open access: yes, 2019
Sustainable development is one of the most important questions in the contemporary world. Wastewater treatment and the search for renewable sources of organic products are essential, not only in the future but also for present generations.
Sokolov, Alexander
core  

From pulp to cementum: 3D visualization of soft and hard dental tissues using different ex vivo nano‐CT contrast‐enhancement techniques

open access: yesInternational Endodontic Journal, Volume 58, Issue 8, Page 1228-1242, August 2025.
Abstract Aim To determine the effect of two contrast‐enhancement strategies in nano‐computed tomography (nano‐CT) imaging on the contrast‐to‐noise ratio (CNR) of various dental tissues, including pulp, dentine and cementum, with the goal of enhancing the visibility of dental soft tissues to a level not yet reported in laboratory nano‐CT imaging ...
Torben Hildebrand   +4 more
wiley   +1 more source

Simplified Preparation of BaAl2O4−y e− y /C Oxy‐Electrides Using Pechini Approach for Ammonia Synthesis

open access: yesChemSusChem, Volume 18, Issue 15, July 27, 2025.
This study presents a scalable method to produce a BaAl2O4−ye−y/C oxy‐electride composite with appropriate textural, structural, and electronic properties. The resulting catalyst demonstrates excellent catalytic performance at mild conditions. Characterization confirms its electride nature, offering a promising route for green ammonia synthesis ...
Aissam Addou   +6 more
wiley   +1 more source

Application of Samarium in Organic Synthesis [PDF]

open access: yes, 2005
摘要如何高效合成各类吲哚衍生物一直是有机合成的一个热点。很多具有药物和生物活性的化合物都具有吲哚衍生物结构。在各种吲哚衍生物中,3取代吲哚是设计和合成许多天然产物、医疗活性试剂的重要合成砌块。因而大部分文献是报道如何合成3取代吲哚的。最简单、直接的合成3取代吲哚的方法是通过在质子或Lewis酸催化下(图1),吲哚与α,β不饱和烯烃进行共轭加成来完成的。然而酸催化下吲哚的共轭加成要求十分小心的控制酸度以抑制诸如二聚或多聚的副反应发生。此外,文献已有的很多方法有的要用到昂贵的催化剂,有的产率很低 ...
郎凯
core  

Regio‐, Stereoselective, Aerobic and Metal‐Free Synthesis of Z‐Vinyl Sulfides: One‐Pot Hydroiodination of Internal Alkynes and in situ Sulfenylations

open access: yesAdvanced Synthesis &Catalysis, Volume 367, Issue 13, July 23, 2025.
Abstract A novel, metal‐free, air‐ and moisture‐compatible one‐pot tandem protocol for the regio‐ and stereoselective synthesis of Z‐vinyl sulfides (achieving yields up to 99%), is reported. This straightforward and efficient process combines the selective hydroiodination of internal alkynes, promoted by the eutectic mixture choline iodide (ChI)/p‐TsOH
Gloria Morís‐Menéndez   +5 more
wiley   +1 more source

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