Results 51 to 60 of about 11,448 (254)

Spectral and quantum-chemical research of antipyrine derivatives of some rare earth elements complex compounds

Тонкие химические технологии, 2012
Data on the synthesis, IR-spectra, powder XRD studies as well as the results of quantum-chemical calculations for [Ln(AP)6]I3, [Ln(AP)6](ClO4)3 (Ln = Sc, Y, La–Nd, Sm–Lu; AP – antipyrine, C11H12N2O) are presented. It was demonstrated that coordination of
N. S. Rukk, R. S. Shamsiev, V. V. Kravchenko, A. Yu. Skryabina, V. V. Zamalyutin   +4 more
doaj  

1,5-Dimethyl-2-phenyl-1H-pyrazol-3(2H)-one–4,4′-(propane-2,2-diyl)bis[1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one] (1/1)

Acta Crystallographica Section E, 2013
The asymmetric unit of the title compound, C11H12N2O·C25H28N4O2, contains two different molecules. The smaller is known as antipyrine [systematic name: 1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one] and the larger is built up from two antypirine ...
Krzysztof Lyczko
doaj   +1 more source

Monolithic Tandem Solar Cell With Co‐Sensitized DSSC and Perovskite Sub‐Cells Using Spectral Filtering for High‐Efficiency Photon Management

Engineering Reports, Volume 7, Issue 9, September 2025.
A monolithic dye‐sensitized solar cell–perovskite tandem solar cell achieved 33.7% (dual‐LED) and 27.1% (AM1.5G) lab‐measured efficiency by combining co‐sensitized dye absorption and triple‐cation perovskite layers with a dielectric spectral filter and ultrathin indium tin oxide recombination layer, enabling effective photon management, current ...
Diptanu Dey, Raj Chakraborty, Punam Das, Diptanu Das, Pronob K. Ghosh   +4 more
wiley   +1 more source

تحضير مركبات حلقية غير متجانسة سباعية جديدة من مركبات أزو- شف ودراسة الفعالية البايولوجية لها

مجلة ابحاث كلية التربية الاساسية
تم في هذه الدراسة تحضير وتشخيص عدد من المركبات الحلقية غير المتجانسة والتي تتكون من حلقات سباعية ومركبات حاوية على مجاميع فعاله كمجاميع الازو والايمين فضلا عن تحضير اكثر من مجموعه فعاله  في مركب واحد ابتداء من المادة الكيميائية الفعالة (4-amino ...
Ruwa M. Mauf , Neam H. Saleem
doaj   +1 more source

In the Minor Key: The Minuscular Mycelium and its Implications for Citizen Science

Community Science, Volume 4, Issue 3, September 2025.
Abstract In an era marked by ecological precarity and growing demands for knowledge systems that are more inclusive, situated, and responsive, grassroots initiatives have begun to challenge dominant models of science and expertise. Among these, citizen science has emerged as a powerful mode of inquiry that brings together university‐based scientists ...
Jaqui Goldin, Carolina Suransky
wiley   +1 more source

Effects of membrane transport activity and cell metabolism on the unbound drug concentrations in the skeletal muscle and liver of drugs: A microdialysis study in rats

Pharmacology Research & Perspectives, 2021
The unbound concentrations of 14 commercial drugs, including five non‐efflux/uptake transporter substrates—Class I, five efflux transporter substrates—class II and four influx transporter substrates—Class III, were simultaneously measured in rat liver ...
Shuyao Wang, Chun Chen, Chi Guan, Liping Qiu, Lei Zhang, Shaofeng Zhang, Hongyu Zhou, Hongwen Du, Chen Li, Yaqiong Wu, Hang Chang, Tao Wang   +11 more
doaj   +1 more source

DDAH1 Promotes Cisplatin Chemoresistance in Patients with Locally Advanced Nasopharyngeal Carcinoma via the EGFR‐JAK2‐STAT3 Pathway

Advanced Science, Volume 12, Issue 30, August 14, 2025.
This study identifies a novel mechanism of nasopharyngeal carcinoma (NPC) cisplatin chemoresistance that DDAH1 expression is associated with cisplatin resistance in NPC cells primarily through the enhancement of the phosphoinositide Janus kinase 2 (JAK2)‐signal transducer and activator of transcription 3 (STAT3) pathway.
Jin‐Hao Yang, Li Yuan, Qiu‐Yan Chen, Kai‐Qi Lan, Liang‐Ji Li, Yu‐Chen Li, Xiao‐Yun Li, Xue‐Song Sun, Lin‐Quan Tang, Sai‐Lan Liu, Hai‐Qiang Mai   +10 more
wiley   +1 more source

Synthesis, DFT Studies, and Molecular Docking Analysis of a Novel Acylpyrazolone Schiff Base and Its Metal(II) Complexes

Applied Organometallic Chemistry, Volume 39, Issue 8, August 2025.
Acylpyrazolone Schiff of antipyrine and its metal complexes were synthesized. The ligand was crystallized in monoclinic crystal system with space group P21/c while the metal complexes formed showed more stability for pseudo‐tetrahedral complexes than the octahedral forms as confirmed by DFT calculations. ABSTRACT Novel Schiff base ligand 1,5‐dimethyl‐4‐
Nkechinyere N. Ukwueze, Jeanet Conradie, Marrigje M. Conradie, Cosmas C. Eze, Uchechukwu S. Oruma, Sunday N. Okafor, Pius O. Ukoha, Nnamdi L. Obasi, Necmi Dege, Oguejiofo T. Ujam, Chigozie J. Ezeorah   +10 more
wiley   +1 more source

Pharmacokinetics of betamethasone in pre‐eclampsia: An in vivo and ex vivo study

British Journal of Clinical Pharmacology, Volume 91, Issue 8, Page 2327-2339, August 2025.
Aims To enhance understanding of betamethasone and its metabolites' pharmacokinetics in pregnancy, specifically early‐onset pre‐eclampsia, through a population pharmacokinetic model. Additionally, to investigate the placental metabolism and transfer of betamethasone and its main metabolites.
Sam Schoenmakers, Letao Li, Anna C. M. Kluivers, Michelle Broekhuizen, Madhavi S. Harhangi, A. H. Jan Danser, Irwin Reiss, Karel Allegaert, Sjoerd A. A. van den Berg, Bertrand D. van Zelst, Ron H. N. van Schaik, Philip L. J. DeKoninck, Emma Ronde, Sebastiaan D. T. Sassen, Sinno H. P. Simons, Birgit C. P. Koch   +15 more
wiley   +1 more source

Sjögren's Syndrome: Epidemiology, Classification Criteria, Molecular Pathogenesis, Diagnosis, and Treatment

MedComm, Volume 6, Issue 7, July 2025.
A brief view of possible etiologic events preceding the diagnosis of desiccation syndrome. ABSTRACT Sjögren's syndrome (SS) is a chronic autoimmune disorder characterized by T‐cell‐mediated B‐cell hyperactivity and cytokine production, clinically manifesting, dry mouth and eyes, accompanied by pain and fatigue.
Ying Hu, Bin Wen, Yunfei Zhang, Xiaocui Wang, Xuemei Duan, Haonan Li, Yufeng Fan, Huifeng Shang, Yukai Jing   +8 more
wiley   +1 more source