Results 61 to 70 of about 51,391 (176)

How the Build Angle Affects the Marginal and Internal Fit of 3D Printed Definitive FPDs: An in Vitro Study

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Statement of Problem Printing parameters may influence the fit of additively manufactured dental restorations. However, the effect of small incremental build angles on the marginal and internal fit of stereolithography (SLA)‐printed definitive 3‐unit fixed partial dentures (FPDs) has not been sufficiently investigated.
Bora Akat, Bahar Kavafoğlu Yilmaz, Fehmi Gönüldaş, Mert Ocak, Stephen F. Rosenstiel, Evşen Tamam   +5 more
wiley   +1 more source

Crystal Structures of Rh2(CO)4(mu-SPh)2 and Rh2(CO)4(mu-SEt)2.

Acta Chemica Scandinavica, 1993
The first compound of the title crystallizes in P2 1 /c with lattice parameters a=24.38, b=9.002, c=17.44A, β=103.86°, Z=8; final R value 0.0529. The second one crystallizes in P2 1 /c with a=8.549, b=18.66, c=9.148A, β=104.25°, Z=4; final R value 0.0373.
Jouni Pursiainen, Tiina Teppana, Sirpa Rossi, Tapani A. Pakkanen, Jean Claude Négrel, Michel Chanon, Cindy Striley, Johann Weidlein, Ahmad Nasiri, Yoshito Okada   +9 more
openaire   +1 more source

Description of Flavicapitulum gen. nov. and two new species of Marmoreocelis from thermal habitats in the Americas

Journal of Phycology, EarlyView.
Abstract Three novel taxa in the Coleofasciculales were observed in hot springs in Yellowstone National Park, Wyoming, United States, and in the Tabaconcito thermal springs on the Rio Tabacón in Costa Rica. Flavicapitulum vaporiphilum gen. et sp. nov. was located in a supported clade with Gracilinea and Marmoreocelis.
Jeffrey R. Johansen, Jan Pokorný, Radka Hauerová, Jan Kaštovský   +3 more
wiley   +1 more source

Effectiveness of Ginsenoside Rh2 Treatment in Mice Experimentally Infected With Cryptosporidium parvum

Veterinary Medicine and Science, Volume 12, Issue 5, September 2026.
• This study evaluated the therapeutic effects of Ginsenoside Rh2 in mice experimentally infected with Cryptosporidium parvum and compared two dosing regimens. • Ginsenoside Rh2 reduced faecal oocyst shedding and improved body‐weight recovery in C. parvum‐infected mice.
Esengul Yildirim, Engin Balikci
wiley   +1 more source

Ginsenoside Rh2 Reduces Ischemic Brain Injury in Rats

Biological and Pharmaceutical Bulletin, 2004
Ginseng was incubated under mildly acidic conditions and its inhibitory effect on a rat ischemia-reperfusion model was investigated. When ginseng was treated with 0.1% hydrochloric acid at 60 degrees C, its protopanaxadiol saponins were transformed to diasteromeric ginsenoside Rg3 and Delta20-ginsenoside Rg3.
Park, Eun-Kyung, Choo, Min-Kyung, Oh, Jin Kyung, Ryu, Jong Hoon, Kim, Dong-Hyun   +4 more
openaire   +3 more sources

Ginsenoside Rh2 regulates triple-negative breast cancer proliferation and apoptosis via the IL-6/JAK2/STAT3 pathway

Frontiers in Pharmacology
IntroductionTriple-negative breast cancer (TNBC) is the most challenging subtype of breast cancer to treat. While previous studies have demonstrated that ginsenoside Rh2 induces apoptosis in TNBC cells, the specific molecular targets and underlying ...
Rumeng Ding, Quancheng Kan, Ting Wang, Ran Xiao, Yanan Song, Duolu Li   +5 more
doaj   +1 more source

Rhodium‐Catalyzed Carbene Transfer to Isocyanides Using Zinc Carbenoids

European Journal of Organic Chemistry, Volume 29, Issue 29, 7 August 2026.
A diazo‐free rhodium‐catalyzed carbene transfer to isocyanides using zinc carbenoids generated from α‐acyloxy halides is reported. This mild protocol furnishes ketenimines that can either be hydrolyzed to amides or intercepted with trimethylsilyl azide or carboxylic acids to give tetrazoles and imides, respectively.
Thomas R. Roose, Guillaume Voegeli, Max C. M. de Vries, Jordy M. Saya, Romano V. A. Orru, Eelco Ruijter   +5 more
wiley   +1 more source

Toward Sustainable Carbonylation Reactions Enabled by CO Surrogates in Green Solvents

ChemSusChem, Volume 19, Issue 13, 14 July 2026.
Carbonylation reactions offer a sustainable route to valuable carbonyl compounds. This review highlights methodologies that exploit carbonylative coupling to drastically enhance process sustainability, avoiding the direct use of CO through CO surrogates and promoting syntheses in green solvents potentially derived from renewable and sustainable sources.
Francesco Messa, Serena Perrone, Antonio Salomone   +2 more
wiley   +1 more source

Ginsenoside Rb1 is transformed into Rd and Rh2 by Microbacterium trichothecenolyticum

Journal of Microbiology and Biotechnology, 2013
Ginsenosides are the most important ingredient of ginseng and are known to possess many pharmacological and biological effects. Rb1, a major protopanaxadiol ginsenoside, is the most abundant ginsenoside in Panax ginseng C.A Meyer and can be hydrolyzed into more pharmaceutically potent minor ginsenosides.
Hansoo, Kim, Jeong-Hoon, Kim, Phil Young, Lee, Kwang-Hee, Bae, Sayeon, Cho, Byoung Chul, Park, Heungsop, Shin, Sung Goo, Park   +7 more
openaire   +2 more sources

Monosubstituted N‐Arylhydroxylamine Chemistry: Integrating Contemporary Synthetic Approaches for the Efficient Construction of Diverse Heterocyclic Scaffolds

Chemistry – A European Journal, Volume 32, Issue 26, 11 July 2026.
Monosubstituted N‐arylhydroxylamines represent a unique subclass of hydroxylamines that act as pivotal intermediates in redox transformations and as versatile platforms for further synthetic transformations. They serve as key building blocks in the synthesis of architecturally complex heterocycles and other valuable organic compounds.
Michael G. Kallitsakis, Kyriakos D. Nikopoulos, Ioannis N. Lykakis   +2 more
wiley   +1 more source