Results 71 to 80 of about 65,666 (270)

Aziridinierung eines einzelnen Kohlenstoffatoms in Alkenen mittels Energietransferkatalyse

Angewandte Chemie, EarlyView.
Im Gegensatz zur traditionellen Alken‐Aziridinierung über (formalen) Nitren‐Transfer berichten wir hier über eine Strategie zur intermolekularen Aziridinierung eines einzelnen Alken‐Kohlenstoffatoms bei zusätzlicher Funktionalisierung der anderen Position. Durch Energietransfer‐ (EnT‐)Katalyse werden Alkenylboronate und ‐silane in reaktive Intermediate
Fritz Paulus, Corinna Heusel, Felix H. Wessels, Bünyamin Sikora, Maik G. Niedziella, Kilian van der Beck, Constantin G. Daniliuc, Frank Glorius   +7 more
wiley   +1 more source

Migration of Two Synthetic Phenolic Antioxidants and Their Degradation Products from Wheat Straw-Based Plastic Lunch Boxes [PDF]

Shipin Kexue
A method based on gas chromatography-mass spectrometry (GC-MS) was developed for the determination of the residues of 2,4-di-tert-butylphenol (2,4-DTBP), butylated hydroxytoluene (BHT) and its derivatives 2,6-di-tert-butyl-p-benzoquinone (BHT-Q) and 3,5 ...
WANG Jinxin, LIANG Yingyin, ZHONG Huaining, HU Changying
doaj   +1 more source

Monitoring of BHT-Quinone and BHT-CHO in the Gas of Capsules of Asclepias physocarpa

Zeitschrift für Naturforschung C, 2006
Three volatile components, namely benzoic acid ethyl ester (1), 2,6-di-tert-butyl-p-benzoquinone (BHT-quinone) (2), and 3,5-di-tert-butyl-4-hydroxybenzaldehyde (BHT-CHO) (3), were detected from the gas in the capsules of Asclepias physocarpa by means of GC/MS analysis.
Bing-Ji, Ma, Hua, Peng, Ji-Kai, Liu
openaire   +2 more sources

Design of an advanced 500-hp helicopter transmission [PDF]

, 1983
High contact ratio spar gears planetary, spiral besel gears, bearings, investment-cast planet carrier, and investment cast stainless-steel housings are ...
Battles, R. A., Braddock, C. E.
core   +1 more source

First passage time processes and subordinated SLE

, 2011
We study the first passage time processes of anomalous diffusion on self similar curves in two dimensions. The scaling properties of the mean square displacement and mean first passage time of the ballistic motion, fractional Brownian motion and ...
Nezhadhaghighi, M. Ghasemi, Rajabpour, M. A., Rouhani, S.   +2 more
core   +1 more source

Aziridination of a Single Carbon Atom in Alkenes via Energy Transfer Catalysis

Angewandte Chemie International Edition, EarlyView.
Contrary to traditional alkene aziridination via (formal) nitrene transfer, we herein report a strategy that achieves intermolecular aziridination of a single alkene carbon atom and installs an additional group at the other. Enabled by metal‐free energy transfer (EnT) catalysis, alkenyl boronates and silanes are transformed into reactive intermediates ...
Fritz Paulus, Corinna Heusel, Felix H. Wessels, Bünyamin Sikora, Maik G. Niedziella, Kilian van der Beck, Constantin G. Daniliuc, Frank Glorius   +7 more
wiley   +1 more source

Antibiotic-induced black hairy tongue: two case reports and a review of the literature

Journal of International Medical Research, 2020
Black hairy tongue (BHT) is characterized by a discolored, hairy tongue. We herein report two cases of BHT associated with antibacterial agents and review previous cases.
Jing Ren, Yao Zheng, Hui Du, Shan Wang, Linna Liu, Wanshi Duan, Zeping Zhang, Lijun Heng, Qi Yang   +8 more
doaj   +1 more source

Validation of Brain Health Test-7 for Detecting Patients with Mild Cognitive Impairment and Early Dementia

Taiwanese Journal of Psychiatry, 2020
Objectives: We intended to develop a simple dementia screening tool to help primary care physicians identify patients with mild cognitive impairment (MCI) and early dementia.
Mei- Xian Loi, Hsi- Chung Chen, Ming- Hsien Hsieh, Yi- Ting Lin, Chen- Chung Liu, Pei- Ning Wang, Chih- Cheng Hsu, Tzung- Jeng Hwang   +7 more
doaj   +1 more source

Thermodynamic Black Holes

, 2018
Black holes pose great difficulties for theory since gravity and quantum theory must be combined in some as yet unknown way. An additional difficulty is that detailed black hole observational data to guide theorists is lacking.
Ruppeiner, George
core   +2 more sources

Impact of Pumpkin and Carrot Flours on the Oxidative and Rheological Properties: Properties of Low‐Fat Cold‐Pressed Oil Mayonnaise

Journal of the American Oil Chemists' Society, EarlyView.
Partial substitution of sunflower oil with cold‐pressed oils (0‐20%) improves the bioactive composition, oxidative stability, and overall quality of mayonnaise while preserving emulsion stability. ABSTRACT This study investigates the effects of xanthan gum, carrot flour, and pumpkin flour on the physicochemical, rheological, and bioactive properties of
S. Gülen, D. Günal‐Köroğlu, S. Turan   +2 more
wiley   +1 more source