Results 121 to 130 of about 76,304 (321)

Determine the Elemental Composition of Minerals From Complex Solid‐Solution Series by Raman Spectroscopy: Implications for Mars Exploration Missions

Journal of Raman Spectroscopy, EarlyView.
This study presents a hierarchical Raman‐based classification model for determining the elemental composition of garnets within complex solid‐solution systems. The workflow combines spectral preprocessing, dimensionality reduction, and two‐level classification: first distinguishing between pyralspite and ugrandite groups, and then classifying ...
Sofia Julve‐Gonzalez, Jose Antonio Manrique, Marco Veneranda, Pilar Renedo, Paula Xiaozhen Vega, Iván Reyes‐Rodríguez, María Mayoral, Sergio Jiménez, Lidia Asenjo, Aurelio Sanz‐Arranz, Elena Charro Huerga, Jaime Delgado Iglesias, Olga Prieto‐Ballesteros, Andoni Moral, Emmanuel Alexis Lalla, Belen Barrios‐Areinamo, Fernando Rull, Guillermo Lopez‐Reyes   +17 more
wiley   +1 more source

A novel redox indicator based on relative abundances of C31 and C32 homohopanes in the Eocene lacustrine Dongying Depression, East China

, 2022
Chong Jiang, Haiping Huang, Zheng Li, Hong Zhang, Zheng Zhai   +4 more
openalex   +1 more source

Diel variation in CO2 flux is substantial in many lakes

Limnology and Oceanography Letters, EarlyView.
Abstract Lakes play a significant role in the global carbon cycle, acting as sources and sinks of carbon dioxide (CO2). In situ measurements of CO2 flux (FCO2) from lakes have generally been collected during daylight, despite indications of significant diel variability.
Elvira de Eyto, Robyn L. Smyth, Rachel M. Pilla, Alo Laas, Amir Reza Shahabinia, Angela Baldocchi, Ankur R. Desai, Anna Lupon, Annalea Lohila, Biel Obrador, Blaize A. Denfeld, Cayelan C. Carey, David Bastviken, David Reed, David Rudberg, Eva‐Ingrid Rõõm, Francois Clayer, Gesa A. Weyhenmeyer, Hannah E. Chmiel, Hans Peter Grossart, Heleen A. de Wit, Ilga Kokorite, Jan‐Erik Thrane, Jānis Bikše, James A. Rusak, Jorge Encinas Fernández, José Fernandes Bezerra‐Neto, Ludmila S. Brighenti, Matthias Koschorreck, Mika Aurela, Nathan Barros, Philipp S. Keller, R. Iestyn Woolway, Rafael Marcé, Ryan P. McClure, Samuel Haverinen, Sari Juutinen, Sarian Kosten, Steve Sadro, Brian C. Doyle   +39 more
wiley   +1 more source

An Empirical Equation to Transform 11B GIAO‐Calculated Absolute Shieldings (σ, ppm) in Chemical Shifts (δ, ppm)

Magnetic Resonance in Chemistry, EarlyView.
Two empirical equations have been devised to transform absolute shieldings (GIAO) into chemical shifts. Both correlations are excellent, but that based on M06‐2X/aug‐cc‐pVDZ calculations needs a correction term for chlorine‐substituted boron compounds with B–Cl bonds.
Ibon Alkorta, José Elguero
wiley   +1 more source

Identifying Plasmodium falciparum cytoadherence‐linked asexual protein 3 (CLAG 3) sequences that specifically bind to C32 cells and erythrocytes [PDF]

, 2005
Marisol Ocampo, Luis E. Rodrı́guez, Hernando Curtidor, Álvaro Puentes, Ricardo Vera, John Valbuena, Ramsés López, Javier Eduardo García‐Castañeda, Luis Eduardo Ramı́rez, Elizabeth Aparecida Ferraz da Silva Torres, Jimena Cortés, Diana Tovar, Yolanda López, Manuel A. Patarroyo, Manuel E. Patarroyo   +14 more
openalex   +1 more source

A Computational Study of the NMR Chemical Shifts of Polynitropyrazoles

Magnetic Resonance in Chemistry, EarlyView.
The 1H, 13C, 15N, and 17O chemical shifts of 91 nitro‐1H‐pyrazoles at GIAO/B3LYP/6‐311++G(d,p) level. The calculated chemical shifts were compared with available experimental data using an empirical equation that relates absolute shieldings to chemical shifts.
Arturo Alcorta, Rosa M. Claramunt, José Elguero, Ibon Alkorta   +3 more
wiley   +1 more source

Residential Development Activity In The Polish Legal Setting

Real Estate Management and Valuation, 2015
Residential development in Poland has gone through many changes over the last few decades. In the 1990s, housing cooperatives played a major role among investors in the residential market, whereas developers were only taking their first steps.
Antczak - Stępniak Agata
doaj   +1 more source

Isotopologue Ratios Identify ¹³C-Depleted Biomarkers in Environmental Samples Impacted by Methane Turnover. [PDF]

Rapid Commun Mass Spectrom
ABSTRACT Rationale The stable carbon isotopic composition (δ13C) of individual lipids is of great value in studying carbon cycling. Among those, microbial lipids in sediments impacted by high methane turnover stand out due to their uniquely depleted isotopic fingerprint.
Groninga J, Lipp J, Song M, Hinrichs KU.
europepmc   +2 more sources

PS-C32-6: ASSOCIATION BETWEEN BLOOD PRESSURE COMPONENTS AND RENAL HISTOLOGIC FINDINGS IN PATIENTS WITH IGA NEPHROPATHY

, 2023
Mikiko Shibata, Hideo Koh, Kyoko Satō, Masahiro Hamada, Yuka Takeuchi, Ryuichi Kunishige, Aoi Matsuki, Yuko Sakata, Keita Kadosawa, Katsushi Nagatsuji, Daisuke Yamazaki, Chizuko Kitabayashi, Takashi Morikawa, Yoshio Konishi, Tomoshige Hayashi   +14 more
openalex   +1 more source

Single‐Crystal‐to‐Single‐Crystal Transformation in a Copper(II) Complex: Structural and Spectroscopic Insights into Methanol Elimination and Hydrogen Bond Network Formation

ChemistryOpen, EarlyView.
A methanol‐ligated copper(II) complex undergoes a single‐crystal‐to‐single‐crystal transformation upon solvent loss, retaining crystallinity while reorganizing its coordination geometry and hydrogen‐bonding network. This study investigates the single‐crystal‐to‐single‐crystal (SCSC) transformations of a copper(II) complex, [Cu(L1)2(acac)2]·2CH3OH (1 ...
Babak Mirtamizdoust, Amirhossein Karamad, Faeze Mojtabazade, Hassan Hosseini‐Monfared, Rahman Bikas   +4 more
wiley   +1 more source