Results 111 to 120 of about 105,970 (372)

Harnessing Toluene Solvent as a Reactant: Regioselective Benzyl Radical Addition to Multi‐π 1,5‐Enynes in a Copper‐Catalyzed Cascade to Indenes

Chemistry – A European Journal, EarlyView.
A copper‐catalyzed three‐component radical cascade of 1,5‐enynes with toluene and benzoic acids enables regioselective benzyl radical addition to multi‐Π systems, efficiently delivering polysubstituted indenes from an abundant solvent feedstock. ABSTRACT C─H activation of toluene generates a benzyl radical that undergoes C─C coupling, converting an ...
Saideh Rajai‐Daryasarei, Fatemeh Chahardehi, Mohammad Mahdi Sharifani, Morteza Jamshidi, Robert Stranger, Frank Rominger, Alireza Ariafard, Saeed Balalaie   +7 more
wiley   +1 more source

Using social media to promote niche e–commerce projects

Путеводитель предпринимателя
The article is devoted to the study of the effectiveness of using social networks for the development of niche online stores. The relevance of the topic is due to the rapid growth of social commerce in 2023–2025 and the limited advertising resources of ...
M. I. Mohammad Zahir
doaj   +1 more source

Proximity operations analysis: Retrieval of the solar maximum mission observatory [PDF]

Retrieval of the solar maximum mission (SMM) observatory is feasible in terms of orbiter primary reaction control system (PRCS) plume disturbance of the SMM, orbiter propellant consumed, and flight time required.
Yglesias, J. A.
core   +1 more source

Severity of effect considerations regarding the use of mutation as a toxicological endpoint for risk assessment: A report from the 8th International Workshop on Genotoxicity Testing (IWGT)

Environmental and Molecular Mutagenesis, EarlyView.
Abstract Exposure levels without appreciable human health risk may be determined by dividing a point of departure on a dose–response curve (e.g., benchmark dose) by a composite adjustment factor (AF). An “effect severity” AF (ESAF) is employed in some regulatory contexts.
Barbara L. Parsons, Marc A. Beal, Kerry L. Dearfield, George R. Douglas, Min Gi, B. Bhaskar Gollapudi, Robert H. Heflich, Katsuyoshi Horibata, Michelle Kenyon, Alexandra S. Long, David P. Lovell, Anthony M. Lynch, Meagan B. Myers, Stefan Pfuhler, Alisa Vespa, Andreas Zeller, George E. Johnson, Paul A. White   +17 more
wiley   +1 more source

SMM strategies of domestic higher education institutions [PDF]

, 2022
Олена Івасенко
openalex   +1 more source

The communications channels with consumers on the internet

Путеводитель предпринимателя, 2020
The article gives a definition of marketing in the Internet, taking into account the specific behavior of the Internet users. Discusses in detail the methods of communication with consumers on the Internet.
A. A. Volokhov, E. G. Ponomareva
doaj  

Improved transfer matrix method without numerical instability

, 2008
A new improved transfer matrix method (TMM) is presented. It is shown that the method not only overcomes the numerical instability found in the original TMM, but also greatly improves the scalability of computation. The new improved TMM has no extra cost
Cheung H.-F., Huiqiong Yin, Rashba E. I., Ruibao Tao, Tao R., Thouless D. J.   +5 more
core   +1 more source

Maternal morbidity following a trial of labor after cesarean birth: A scoping review of operative vaginal birth compared with cesarean birth in the second stage of labor

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Background Increased use of operative vaginal birth (OVB; forceps and vacuum) has been proposed as a strategy to avoid cesarean birth (CB) among individuals who elect a trial of labour after CB (TOLAC). The relative maternal safety of OVB and CB in individuals with a TOLAC is poorly understood. Objective To summarize the available evidence and
Irina I. Oltean, Vanessa Hébert, Giulia M. Muraca   +2 more
wiley   +1 more source

Attitude sensor alignment calibration for the solar maximum mission [PDF]

An earlier heuristic study of the fine attitude sensors for the Solar Maximum Mission (SMM) revealed a temperature dependence of the alignment about the yaw axis of the pair of fixed-head star trackers relative to the fine pointing Sun sensor.
Pitone, Daniel S., Shuster, Malcolm D.
core   +1 more source

Hysterectomy for placenta accreta spectrum disorder: Impact of institutional surgical volume on patient outcomes

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective To evaluate trends in hysterectomy case volume for placenta accreta spectrum (PAS) disorder over time and compare maternal outcomes between high‐ and low‐volume centers. Specifically, we examined whether surgical volume influences severe maternal morbidity (SMM) and other key perioperative outcomes.
Lacey C. Brennan, Olga Bougie, Jonas Shellenberger, Jessica Pudwell, John Kingdom, Peter S. Thiel, Lisa Allen, Sebastian R. Hobson, Maria P. Velez, Ally Murji   +9 more
wiley   +1 more source