Detection, Risk Assessment, and Survey of Four Polycyclic Aromatic Hydrocarbon Markers in Infant Formula Powder by Chenggang Cai, Pinggu Wu, Pingping Zhou, Dajin Yang, Zhengyan Hu

“…The developed method required the addition of an isotopically labeled internal standard, sample extraction under alkali conditions, a saponification step, and a solid-phase extraction purification step. …”
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Magnesium, Aging, and the Elderly Patient by Mladen Davidovic, Dejan Trailov, Dragoslav Milosevic, Branimir Radosavljevic, Pavle Milanovic, Snezana Djurica, Helena Loncar-Stevanovic, Radmila Stevic

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Prostate-Specific Membrane Antigen as Target for Neuroimaging of Central Nervous System Tumors by Brittany M. Stopa, James Crowley, Csaba Juhász, Cara M. Rogers, Mark R. Witcher, Jackson W. Kiser

“…Therapeutic and theranostic applications of PSMA-binding tracers have been studied, including labeled alpha- and beta-ray emitting isotopes, as well as PSMA targeting in directing MRI-guided focused ultrasound. …”
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A Novel Hybrid Machine Learning Framework for Wind Speed Prediction by Rhafes Mohamed Yassine, Moussaoui Omar, Raboaca Maria Simona, Mihaltan Traian Candin

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Susceptibility map-weighted MRI can distinguish tremor-dominant Parkinson’s disease from essential tremor by Sungyang Jo, Chong Hyun Suh, Sangjin Lee, Jihyun Lee, MyungKi Yoon, Hwon Heo, Woo Hyun Shim, Sang Joon Kim, Eung Yeop Kim, Sun Ju Chung

“…Although positron emission tomography can confirm PD diagnosis, its application is limited by high cost and exposure to radioactive isotopes. Patients with PD exhibit loss of the dorsal nigral hyperintensity on brain magnetic resonance imaging (MRI). …”
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Gas Seepage along the Edge of the Aquitaine Shelf (France): Origin and Local Fluxes by Livio Ruffine, Jean-Pierre Donval, Claire Croguennec, Laurent Bignon, Dominique Birot, Anne Battani, Germain Bayon, Jean-Claude Caprais, Nadine Lantéri, Denis Levaché, Stéphanie Dupré

“…Thus, the molecular and isotopic (δD and δ13C) analyses revealed that the gas seeps were primarily composed of methane. …”
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Corroborating the magnetic easy axis of epitaxial (100) α-iron and (0001) BaFe12O19 thin films by 57Fe Mössbauer spectroscopy by Y. E. Li, J. Shine, C. Guguschev, M. Brützam, D. G. Schlom, N. Ravi

“…60 and 120 nm thick epitaxial films of isotopically enriched bcc iron (α-57Fe) grown on (100) MgO substrates are studied using x-ray diffraction, reflection high-energy electron diffraction (RHEED), and conversion electron Mössbauer spectroscopy (CEMS). …”
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Age-Related Water Use Pattern of the Introduced Species Atriplex canescens Was Influenced by Root Distribution in Desert by Hai Zhou, Xiangyan Feng, Zhibin He, Bing Liu, Fang Li, Heng Ren, Qiyue Yang, Jianjun Kang, Shuai Wang, Wenzhi Zhao

“…Here, we examined the distribution of roots and isotopic values of δ18O and δD in soil water at depths ranging from 0 to 300 cm, groundwater, precipitation, and shrub xylem at different stages of shrub maturity to determine water use patterns in shrub plantations. …”
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Lena River biogeochemistry captured by a 4.5-year high-frequency sampling program by B. Juhls, A. Morgenstern, J. Hölemann, A. Eulenburg, B. Heim, F. Miesner, F. Miesner, H. Grotheer, H. Grotheer, G. Mollenhauer, G. Mollenhauer, H. Meyer, E. Erkens, E. Erkens, F. Y. Gehde, S. Antonova, S. Chalov, S. Chalov, M. Tereshina, O. Erina, E. Fingert, E. Abramova, T. Sanders, L. Lebedeva, N. Torgovkin, G. Maksimov, V. Povazhnyi, R. Gonçalves-Araujo, U. Wünsch, A. Chetverova, A. Chetverova, S. Opfergelt, P. P. Overduin

“…The dataset comprises 587 sampling events and measurements of various parameters, including water temperature, electrical conductivity, stable oxygen and hydrogen isotopes, dissolved organic carbon concentration and <span class="inline-formula">¹⁴</span>C, colored and fluorescent dissolved organic matter, dissolved inorganic and total nutrients, and dissolved elemental and ion concentrations. …”
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Tracking Deep Meteoric Fluid Circulation Along a Regional Detachment Fault Using Field Infrared Spectroscopy by Tom Brikowski, Chinomso Madubuike, Jeremy McDowell, Greg Greywall

“…Abundant evidence exists for deep crustal penetration of meteoric fluids along faults, including emergence of hot, dilute, and isotopically light geothermal fluids in extensional settings; however, the nature of the fluid conduits supporting this rapid circulation from surface to the brittle-ductile transition and back remains mysterious. …”
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Diagenetic Fluid and Its Impact on Sandstone Reservoirs in the Southern Boxing Sag, Dongying Depression, Bohai Bay Basin, China by Zhenhuan Shen, Zhuang Ruan, Bingsong Yu, Shujun Han, Chenyang Bai, Qiuhong Chang, Tianxia An

“…The rare earth element (REE) pattern of bulk mudstone and carbonate cements as well as C–O isotopic evidences indicate that the diagenetic fluids of carbonate cementation are primarily controlled by the adjacent mudstone, whereas mineral dissolution and altered clay minerals in sandstone provide additional cations for the local reprecipitation of late-stage carbonate. …”
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Mid-Late Holocene Stalagmite δ18O and δ13C Records in Naduo Cave, Guizhou Province, China by Jialu Wang

“…A stalagmite ND3 collected in Naduo Cave was used to reconstruct the history of local climate and environmental changes from 0.55 to 5.07 ka BP based on the data of 13 230Th ages and 642 groups of oxygen and carbon stable isotopes. First, according to correlation analysis, δ18O and δ13C were significantly correlated (correlation coefficient r = 0.308, n = 318, P<0.001) during the 5.07–2.00 ka BP period. …”
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Hydrogeochemical Characteristics of the Haiyuan-Liupanshan Seismic Belt at the Northeastern Edge of the Tibet Plateau by Xinyan Li, Xiaopeng Liu, Jianguo Du, Yueju Cui, Fengxia Sun

“…The hydrogeochemical characteristics and groundwater recharge environments along the deep-cut Haiyuan-Liupanshan fault zone (HLFZ) were investigated by major ion and isotopic compositions (δ18O and δD) of the water samples collected at 14 sites from 2016 to 2017. …”
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Transmutations of Long-Lived and Medium-Lived Fission Products Extracted from CANDU and PWR Spent Fuels in an Accelerator-Driven System by Alper Buğra Arslan, İlayda Yilmaz, Gizem Bakir, Hüseyin Yapici

“…The calculations bring out that in the modified ADS, LLFPs and MLFPs, which are extracted from thermal reactors, can be transformed to stable isotopes in significant amounts along with energy production.…”
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Hydrogeochemical Characteristics and Formation of Low-Temperature Geothermal Waters in Mangbang-Longling Area of Western Yunnan, China by Xing-Wang Chang, Mo Xu, Liang-Wen Jiang, Xiao Li, Yun-Hui Zhang

“…This study focused on the hydrogeochemical evolution, reservoir temperature, and recharge origin of geothermal waters using hydrogeochemical and deuterium-oxygen (D-O) isotopic studies. The low-temperature geothermal waters were characterized by HCO3-Na type, while shallow cold spring was of the hydrochemical type of HCO3-Ca. …”
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Proglacial methane emissions driven by meltwater and groundwater flushing in a high-Arctic glacial catchment by G. E. Kleber, G. E. Kleber, G. E. Kleber, L. Magerl, A. V. Turchyn, S. Schloemer, M. Trimmer, Y. Zhu, Y. Zhu, A. Hodson, A. Hodson

“…We measured methane concentrations in the glacial river of up to 3170 nM (nearly 800 times higher than the atmospheric equilibrium concentration) and found the methane to be of thermogenic origin through isotopic analysis. We estimated a total of 1.0 t of methane emissions during the 2021 melt season from the catchment, of which nearly two-thirds are being flushed from the glacier bed by the melt river. …”
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Tolterodine is a novel candidate for assessing CYP3A4 activity through metabolic volatiles to predict drug responses by Valentina Stock, Rebecca Hofer, Franziska Lochmann, Vera Spanke, Klaus R. Liedl, Jakob Troppmair, Thierry Langer, Hubert Gstach, Christian Dank, Chris A. Mayhew, Sarah Kammerer, Veronika Ruzsanyi

“…For the first time, we identify an isotopically unlabelled CYP3A4 substrate, tolterodine that leads to the formation of a non-toxic volatile metabolite, acetone, which could potentially be applied to monitor CYP3A4 activity in humans. …”
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New Plastitar Record for the Mediterranean Sea: Characterization of Plastics and Tar from the Salento Peninsula (Ionian Sea) by Silvia Fraissinet, Emanuele Mancini, Chiara Funiati, Caterina Martino, Giuseppe Egidio De Benedetto, Chiara Roberta Girelli, Francesco Paolo Fanizzi, Genuario Belmonte, Stefano Piraino

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Hydrogeochemistry, Geothermometry, and Genesis of the Hot Springs in the Simao Basin in Southwestern China by Yuqi Zhang, Xun Zhou, Haisheng Liu, Mingxiao Yu, Kuo Hai, Mengru Tan, Dongxue Huo

“…In this study, hydrochemical and isotopic analyses and mixed models are used to examine the sources of recharge, heat, and solutes of the hot springs to better understand the subsurface processes and formation mechanisms of different hot springs in the basin. …”
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Ecological and genetic assessment of the consequences of radiation influence on contaminated areas by A. B. Bigaliev, K. Z. Shalabaeva, B. E. Shimshikov, S. S. Kobegenova, L. M. Adilova, A. N. Kozhakhmetova, S. Sharakhmetov, M. N. Burkhanova

“…A reconnaissance and radioecological examination of environmental objects was carried out using analytical methods, which made it possible to determine the quantitative content of toxic components, the content of priority pollutants and radioactive isotopes. It has been established that the values of the volumetric activity of natural and man-made radionuclides in soil samples, drinking water and biosubstrates (pet hair, human peripheral blood samples) from settlements correspond to the value of the control level for this region. …”
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