ID: 4974
Year: 2026
Products: Product Unavailable
Authors: Raudoniūtė, K;
Application: ~
[ENG] Soviet residential architecture remains widespread in Lithuania. It is still one of the most prominent material symbols that represents the Soviet era. However, after Lithuania regained its independence, Soviet apartment buildings remained relevant living spaces. In other words, the forms of the past inevitably became part of the period of independence. Thus, within Soviet residential architecture, the generation of independence experienced overlapping temporalities. They lived in the remaining blocks built during the occupation while inhabiting the everyday reality of post-communist transformation. At the same time, they created their own personal meanings. Therefore, it remains unclear how all of this fits into the memory of the Soviet-era apartment buildings. This study seeks to answer the question: how is the memory of the independence generation constructed in relation to Soviet residential architecture? The aim of this paper is to understand the memory in space by evaluatin...
ID: 4973
Year: 2026
Products: TV3
Authors: Majauskaitė, R;
Application: ~
[ENG] Based on academic research, in times of political crisis the media not only mediate between government institutions and citizens, but also shape public attitudes, emotional states, and behavior. Meanwhile, it is argued that crises often intensify political pressure on journalists and create uncertainty that may affect their professional decisions and adherence to core principles such as objectivity and neutrality. Therefore the aim of the study is to determine how Lithuanian journalists perceived their professional role in 2025 while covering the resignation of the Government, and what impact they believed they had on the course of the political crisis and on public understanding of it. An interpretivist methodology combined with qualitative content analysis was employed to conduct the study. Fourteen semi-structured interviews were analyzed, conducted with representatives of different Lithuanian media outlets who covered the government’s resignation. The applied methodology ma...
ID: 4972
Year: 2026
Products: Product Unavailable
Authors: Paulauskaitė, U;
Application: ~
[ENG] This thesis analyzes the experiences of Lithuanian journalists using social media as a source of information, videos and pictures about the war in Ukraine since 2022. In the case of the war in Ukraine, social media not only is an important part of journalists’ work and a significant source of content from Ukraine, but also a place where information warfare takes place and other dangerous phenomena are encountered. Despite the interest in the role of social media in journalism, there is a lack of empirical research in Lithuania analyzing the practices and experiences of Lithuanian journalists working with social media content. The aim of this work is to answer the research question: how Lithuanian journalists use social media as a source when reporting on the war in Ukraine, what risks and tensions they face, and what strategies they use to manage them. The theoretical part of this thesis discusses the functions of the journalists during wartime, the specifics of war journalism,...
ID: 4971
Year: 2026
Products: 100 µL column
Authors: Martin, L;
Application: ~
Avec une demande énergétique grandissante, devenue un enjeu majeur pour les pays occidentaux comme le Canada, l'uranium joue un rôle clé en répondant à un besoin critique. Cette ressource peut représenter jusqu'à 60 % de la production énergétique dans certaines provinces canadiennes. La région d'Elliot Lake, en Ontario, a d'ailleurs été un site historique de production d'uranium. Toutefois, cette exploitation a laissé derrière elle plusieurs lacs de gestion des résidus miniers, contenant les rejets issus de l'extraction. Ces lacs ont pour fonction de limiter l'oxydation des résidus et leur rayonnement ionisant. Néanmoins, ces derniers constituent une source potentielle de divers contaminants, dont le radium, qui soulève d'importantes préoccupations environnementales et sanitaires. Au cours des dernières années, une augmentation des concentrations en radium a été observée dans certains lacs de gestion des résidus miniers de la région d'Elliot Lake. Cette tenda...
ID: 4969
Year: 2026
Products: NWRFemto UltraCompact laser ablation system
Authors: Cepedal, A;Fuertes, M;
Application: Laser;
Asturias is the main producer of fluorite, currently mining in three districts -Villabona, La Collada and Berbes (Fig. 1)- with an annual production capacity of approximately 140,000 t. (https://www.minersa.com/mpd_fluorspar.php). Mineralization shares characteristics with MVT deposits (Magotra et al., 2017) and mainly occurs along the margins of a Mesozoic basin which unconformably overlies the Palaeozoic basement. Fluorite is found as stratabound bodies and veins in Permo-Triassic rocks, and as veins hosted by Carboniferous limestones (Martínez García, 1983; Sánchez et al., 2009,2010; Symons et al., 2016, and references therein). The aim of this work is to develop a protocol for quantifying major and trace elements in fluorite using fs-LA-ICP-TOFMS, and to study their variation during mineral formation....
ID: 4968
Year: 2026
Products: Elemental Scientific Lasers MIR10-30W infrared (10.6 µm) laser
Authors: Conway, JD;
Application: Laser;
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ID: 4967
Year: 2026
Products: TV3
Authors: Gasperavičiūtė, I;Maksimavičius, P;
Application: ~
~...
ID: 4965
Year: 2026
Products: TwoVol2 de 100x 100 mm
Authors: Patiño Mejía, RE;
Application: seawater;isotope;
Rubidium isotope system has been advocated as an emerging proxy for silicate weathering intensity, primarily based on systematical isotope fractionation during moderate granite weathering through adsorption-desorption processes by secondary clay minerals. However, the magnitude and mechanism of Rb isotope fractionation during chemical weathering of basaltic rocks (an alternatively important silicate rock in the Earth’s crust), especially under intense weathering conditions, are still poorly constrained, which hinders our understanding on the geochemical Rb isotope cycling at the Earth’s surface and the robust application of Rb isotopes as a paleo-weathering proxy. In this study, we present Rb isotope compositions (δ87Rb) from a gabbro weathering profile in Leizhou Peninsula, which forms under tropical humid monsoon climate. The upper saprolites are characterized by a positive linear correlation between the Rb and Th (a least-mobile element that can indicate aeolian accretion) cont...
ID: 4964
Year: 2026
Products: prepFAST Station 8STN
Authors: Kohvakka, M;
Application: ~
Abstract Unavailable...
ID: 4963
Year: 2026
Products: FAST sample introduction system
Authors: Rullander, G;Herbert, R;Strömvall, A;Vollertsen, J;Lorenz, C;Rauch, S;Mohammadi, A;Dalahmeh, S;
Application: Environmental;Total;
Biochar-based filters offer a promising solution for removing pollutants from stormwater, yet their performance under environmental stressors remains insufficiently studied. This study evaluated the efficiency of biochar beds in retaining microplastics (MPs) and metals under prolonged dry conditions and with increased salinity. Results showed that MPs were well retained through entrapment in biochar's porous structure, with non-polar polypropylene (PP) fragments removed more efficiently (98-99%) than polar polyamide (PA) fragments (83-92%). The MP retention improved over time, highlighting biochar's long-term filtration potential. However, a five-week dry period lowered effluent pH, consequently increasing metal mobility, while higher salinity events enhanced the dissolution of some metals, reducing their total removal. To simulate real-world conditions, semi-artificial stormwater was created by mixing road dust with deionized water. This mixture, along with virgin MPs, was introduced ...
ID: 4962
Year: 2026
Products: prepFast M5X automatic dilution sample loader
Authors: Dutta, S;Jang, GG;Keum, JK;Einkauf , JD;
Application: ~
Blowdown water from various industries and cooling facilities contains high concentrations of calcium (Ca), magnesium (Mg), silica, and corrosion inhibitors, which render the water unsuitable for discharge into surface water and wastewater treatment plants. Electrocoagulation (EC) is effective at removing Ca and silica. Here, Mg-alloy electrodes EC resulted in ∼91% silica removal at a 5400 C/L charge loading. Ca removal, however, was only 31%. To enhance Ca removal, carbon dioxide (CO2) containing gas was introduced. CO2 addition formed carbonate ions, which reacted with Ca/Mg ions to generate carbonate precipitates. Introducing 5% and 14% CO2, simulating natural gas-fired and coal-fired flue gas, enhanced Ca removal to 38% and 47%, respectively. Pure CO2 facilitated 70% Ca removal, more than two times higher than that without CO2, while maintaining high silica removal. FTIR, XRD, and SEM-EDS analyses confirmed enhanced Ca/Mg carbonate formation upon CO2. In situ Raman spectroscopy w...
ID: 4961
Year: 2026
Products: ontinuous wave CO 2 laser
Authors: Dorsey, RJ;Di Vincenzo, G;Meschis , M;
Application: Laser;
Long-term rates of crustal uplift in southern Calabria and NE Sicily are incompletely understood due to limited information about the age of marine terraces at 1.0-1.3 km above sea level (asl). This study provides a new constraint on high-elevation terrace ages through integrated analysis of geochronology, stratigraphy, shoreline modeling, and fault-zone morphology. 40Ar/39Ar step-heating experiments on glass from a tuff in marine claystone of the Argille di Spadafora, NE Sicily, yield reproducible age spectra with a mean age of 0.481 ± 0.019 Ma (±2σ). The Argille di Spadafora and equivalent marl in southern Calabria are overlain by Pleistocene marine terrace deposits, indicating the terraces are younger than 0.50 Ma. Paleoshoreline modeling at Campo Piale, southern Calabria, suggests an age of 525-590 ka for a terrace at 600-630 m asl: this is an overestimate because it assumes no fault offsets, tilting or structural warping despite geomorphic evidence for these processes. We corre...
ID: 4960
Year: 2026
Products: NWR 193UC laser ablation unit
Authors: Liang, Y;Beier, C;Qu, T;Wang , H;
Application: Laser;
Skip Nav Destination Research Article| January 06, 2026 Newly Published Petrogenesis and tectonic implications of Paleoproterozoic mafic dikes in the southeastern North China Craton Available Yayun Liang; Christoph Beier; Tong Qu; Haiyi Wang; Linyi Li; Hao Yan; Jun Deng Author and Article Information GSA Bulletin (2026) https://doi.org/10.1130/B38622.1 Article history Open thePDFfor in another window Standard View OpenGeoSci Tools Mafic dikes in cratonic regions record extensional tectonic processes within the continental lithosphere and thus provide key insights into mantle−crust interaction and deep-mantle geodynamics at regional to global scales. The tectonic setting of the Jiao-Liao-Ji belt in the eastern North China Craton remains debated due to multistage Precambrian overprinting, but resolving this issue is critical for reconstructing the North China Craton’s Precambrian evolution and its role in the Columbia supercontinent. Here, we report new laser ablation−inductively c...
ID: 4959
Year: 2026
Products: TwoVol3 ablation cell pressure
Authors: Zhang, HCG;Wang, J;Jia, X;Zhao , Y;
Application: geochemistry;
Garnet serves as a key mineral in some granitic rocks, offering unique constraints on melt generation and crustal evolution processes. This study presents an integrated petrological, geochemical, geochronological, and phase equilibrium investigation of garnet-bearing granite from the Chengde area of the Trans-North China Orogen. The garnet exhibits homogeneous major element compositions but distinct trace element zoning patterns, characterized by a decrease in yttrium and heavy rare earth element concentrations from core to rim, which is indicative of growth zoning. Textural evidence of garnet-quartz intergrowth, coupled with trace element variations, documents a multistage growth history involving initial metamorphic nucleation followed by rim development under suprasolidus conditions. Phase equilibrium modeling constrains the garnet formation conditions to 10.7−11.1 kbar and 760−775 °C, similar to thermometric estimates of 685−757 °C. Comprehensive datasets, including whole-r...
ID: 4958
Year: 2026
Products: Positive and negative ESI modes
Authors: Benitah, S;Bigas, C;Martín, J;Kimura, M;Dilme, J;Radío, S;Hensgens, A;LIESA, M;Reisz, J;Dzieciatkowska, M;D'Alessandro, A;Porteiro, B;Nogueiras, R;Zhao, Z;Shilatifard, A;Takebe, T;Majem, B;
Application: ~
Metabolic dysfunction-associated fatty liver disease (MASLD) has emerged as a major global health concern, with prevalence rising alarmingly in the pediatric population. Maternal nutrition and maternal body mass index (BMI) influence the propensity of the offspring to develop MASLD during childhood and adulthood, but the mechanisms underlying this maternal inheritance are unknown. Here, we have explored the developmental origins of MASLD, focusing on the effect of maternal nutrition and its epigenetic consequences in offspring. Using a mouse model, we demonstrate that maternal consumption of a Palmitic Acid-enriched High-Fat and high-sugar Diet (PA-HFD) during pregnancy and lactation induces stable epigenetic modifications, particularly related to H3K4me3 deposition, in the liver of male offspring through the action of the histone methyltransferase SET1a/COMPASS. This imprinting establishes a persistent transcriptional reprogramming, notably an enrichment in genes governing fatty acid ...
ID: 4957
Year: 2026
Products: NWR193UC 193 nm ArF excimer laser ablation system fitted with a TV3 cell
Authors: D’Imporzano, P;Hagen-Peter, G;
Application: Total;isotope;Laser;
The method was then tested on a real sample, a cross-section containing LW in two adjacent paint layers: a layer of prime (thickness estimated around 5-8 µm) and a layer of lead white with the same thickness, Figure 8. The sample was provided by ARTDETECT in collaboration with the National Gallery - Alexandros Soutsos Museum, which kindly consented to share the results on the mapping, (not the name of the painting and the values of the analysis, which will be discussed in a specific publication). The investigation was carried out to test if the LW used in the two layers was different, a task possible only using LA analysis due to the paint layer thickness. The first attempt was done using the LA14.7 settings, using a line of 50 µm, on both layers and sampling multiple spots. The results identified the presence of two different lead white, but there was a problem with line_3, 4 and 17. While the sampling spots were on the same lead white rich layer next to each other, Figure 8a, their...
ID: 4956
Year: 2026
Products: Iolite 4
Authors: Biskupič, J;Scheer, P;Hložková, J;Aksu, A;Šudomová, L;aacute, V;Procházková, P;Zikmund, T;Kaiser, J;Kalčíková, G;Kuchynka, M;
Application: Biological;Tissue;Laser;
Detecting and characterizing microplastics within biological tissues remains analytically challenging due to their small size, complex composition, and the heterogeneous nature of biological matrices. Existing methods often rely on destructive sample preparation or provide only partial information, highlighting the need for advanced techniques that can simultaneously resolve both the structural and chemical features of microplastics in situ. To address this gap, we introduce a multimodal analytical approach that integrates micro‑computed tomography (µCT) which provides non‑invasive volumetric imaging of the tissue with laser ablation inductively coupled plasma mass spectrometry (LA‑ICP‑MS) for mapping of presence of microplastics based on their metal markers. Rat tissue was spiked with polyethylene terephthalate (PET) microplastics and results showed that µCT imaging alone was insufficient for definitively determining microplastics. However, PET contained several elements, su...
ID: 4955
Year: 2026
Products: fluid-active systems
Authors: Harlov, D;Wen, Z;Xu, B;(28817), L;SONG, Y;Li, S;
Application: Laser;
Zircon typically resistant to hydrothermal alteration, can undergo significant modification in fluid-active systems through coupled dissolution-reprecipitation mechanisms, particularly in alkali-rich environments. This study investigates zircon metasomatism by potassic fluids during Au mineralization in the Jiaodong Peninsula, China, a globally significant Au province. Natural zircons from the Jiaojia Au deposit (PA-1) displayed analogous CL-dark zones with thorite/xenotime inclusions, confirming a fluid-driven coupled dissolution-reprecipitation process. The potassic alteration zone in Linglong granite high alkali content (K₂O + Na₂O = 10 - 13 wt.%) and accessory mineral abundance facilitated U-Th-REE release during K-feldspar alteration, sourcing these elements zircon metasomatism.Natural zircons from the Linglong granite have been experimentally altered using KOH-bearing fluids (2M and 4M) at 600 °C at 200 MPa and 1000 MPa in order to simulate the potassic alteration described ...
ID: 4954
Year: 2026
Products: Product Unavailable
Authors: Rubio, J;Kelly, D;Xie, S;So, R;Kitagawa, K;Fujii, Y;Takeuchi, H;Kim, E;Kim, S;Malhotra, A;Lencz, T;Shastri, G;Gallego, J;Sadri, M;Vega, S;Kane, J;Leucht, S;Schneider-Thoma, J;Sarpal, D;Blazer, A;Nucifora, L;Nucifora, F;Crossley, N;Mena, C;Gonzalez-Valderrama, A;Luykx, J;Qubad, M;Escarti, M;Pechuan, E;Toll, A;Garcia-Rizo, C;Streiff, R;Bioque, M;Llorca-Bofí, V;
Application: Clinical;Blood;Total;Drug;
Background: Treatment-resistant schizophrenia (TRS) affects one in three people with schizophrenia. Clozapine remains the only approved treatment, yet its mechanism of action is poorly understood. Converging evidence implicates immune dysregulation in TRS and suggests clozapine exerts unique immunomodulatory effects, but large-scale clinical data linking immune biomarkers - such as the neutrophil-to-lymphocyte ratio (NLR) - to clozapine response are lacking. We tested whether higher baseline NLR predicts clozapine response and whether NLR normalizes with effective treatment. Methods: We collected individual participant data - through systematic review, data repositories, and expert consultation - to conduct a meta-analysis of clozapine trials (8-24 weeks) in adults with TRS. All datasets underwent a standardized analytic pipeline. Primary analyses were logistic regression of baseline NLR predicting response (≥20% symptom improvement) and correlation between change in NLR and change i...
ID: 4953
Year: 2026
Products: ESI New Wave NWR 193UC (TwoVol2) laser ablation system
Authors: Xun, H;Wang, S;Ma, Y;Cao, C;Zheng, Y;Zhou, L;
Application: Laser;
Mesozoic complexes in Yanshan intraplate orogenic belt show complex crust-mantle interactionsand are closely related to regional-scale gold (polymetallic) mineralization. However, the fine-scale discrimination of different magmatic pulses and their genetic linkages within a complex is often hindered by their similar ages. Here, we study Yaolingzi Complex, using petrographic observations combined with zircon U-Pb geochronology, quantitative zircon morphology and zircon mineral chemistry to investigate magma evolution pathways and crystallization-kinetic conditions of different lithological units. The results show that the Yaolingzi Complex formed during the early Yanshanian event (164-160 Ma), whereas different lithological units exhibit significantly distinct petrogenetic mechanisms: (1) The quartz monzodiorite-granodiorite-syenogranite sequence is a shallow-level calc-alkaline sequence produced by crust-mantle magma mixing. Their zircons are found in super-metamorphicremelting, and th...
ID: 4952
Year: 2026
Products: laser ablation system (imageGEO193 fitted with a TwoVol3
Authors: Chrást, P;Komendová, R;Přichystal, A;
Application: Laser;
The Gravettian site of Přerov, Předmostí (Czech Republic) has helped understanding human adaptations during the period 25000 BC in Central Europe. Mammoth teeth, as incremental archives, hint about their paleoenvironments through retention of biogenic and after burial related elemental and isotopic information. Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) is an established tool for in situ elemental and isotopic analysis for combined diagenetic, biomineralization and paleoecological assessments. This study utilized a 193 nm laser and a triple-quadrupole mass spectrometer to conduct elemental bioimaging on a section of a mammoth tooth specimen from Předmostí u Přerova, carbon-dated to be approximately 25000 years old. Concentrations of 138Ba, 44Ca, 111Cd, 24Mg, 55Mn, 31P, 208Pb, 45Sc, 88Sr, 238U, 89Y and 66Zn were determined within different tooth tissues, such as dentine, layered enamel and cementum. Elemental maps and isochronous analysis revealed dist...
ID: 4951
Year: 2026
Products: seaFAST
Authors: Anderlini, T;Tremblay, J;Cullen, J;
Application: ~
The Canadian Arctic Archipelago (CAA) is a shallow conduit conveying Pacific- and Atlantic-derived waters to Baffin Bay via Lancaster Sound, Jones Sound, and Nares Strait. At the southern edge of Baffin Bay, Davis Strait is a key gateway for exchange...
ID: 4949
Year: 2026
Products: 10.6 µm CO2 laser (MIR102
Authors: Stephant, A;Desch, S;Anand, M;Zhao, X;Cuppone, T;Rider-Stokes, B;Carli, C;Gamblin, J;Füri, E;Nottingham, M;Pratesi, G;Franchi, I;
Application: Laser;
The origin of hydrogen in inner Solar System planetesimals remains unknown. Analyses of the hydrogen isotopic composition in non-carbonaceous (NC) chondrites and achondrites can be used as a proxy to determine the origin of this hydrogen. Indeed, the main H reservoirs in the Solar System have distinct isotopic composition. However, NC chondrites and achondrites have yet to reveal the definitive source of their hydrogen. Consequently, it is uncertain whether hydrogen in the parent bodies of these objects originated from outer Solar System sources, such as interstellar ices, or from inner Solar System sources, including nebular gas. The Mercury-like ungrouped achondrite Northwest Africa (NWA) 8409, believed to have formed in the Solar System’s innermost regions, offers the unique opportunity to assess nebular H2 as a potential hydrogen source in planetesimals that formed early and well inward of the snowline. The abundance and isotopic composition of H in nominally anhydrous minerals f...
ID: 4948
Year: 2026
Products: Product Unavailable
Authors: Sapp, A;Weber, F;Cope, W;Moorman, C;Wilson, E;Mali, I;
Application: Blood;Tissue;Environmental;Species;
Due to the relatively long lifespan and resilience of adults to environmental stressors, freshwater turtles are characterized as bioaccumulators of chronic contaminant exposure in urban ecosystems. Urbanization increases pollutants, resulting in subsequent runoff into streams. We evaluated the relationship between percent impervious surface and contaminant concentrations in turtles from 20 wetlands in Wake County, North Carolina, USA, one of the fastest-growing counties in the United States. We evaluated the concentrations of eight environmental contaminants known to cause human and environmental health issues listed under the U.S. Environmental Protection Agency’s Resource Conservation and Recovery Act: arsenic (As), barium (Ba), cadmium (Cd), chromium (Cr), lead (Pb), mercury (Hg), selenium (Se), and silver (Ag), as well as vanadium (V) and copper (Cu) due to their presence in urban environments and bioaccumulation, in the blood and claws from Chelydra serpentina and Trachemys scri...
ID: 4947
Year: 2026
Products: apex Q sample inlet system
Authors: Romero, F;Arevalo-Seijas, V;Valqui-Peña, D;Macdonald, M;Wadham, J;Loayza‐Muro, R;
Application: Environmental;
The retreat of tropical glaciers in the Peruvian Andes, particularly in the Cordillera Blanca, has significantly altered hydrogeological and geochemical processes in mountain water-sheds. This study investigates the influence of glacier change-driven acid rock drainage (ARD) upon benthic macroinvertebrate communities in 19 glacier-fed streams of the Santa River watershed over two consecutive dry and wet seasons (2019–2020). The findings reveal that ARD driven by glacier melt and sulphide oxidation has led to increased metal concentrations (e.g., Fe, Mn, Al, Pb) and pH reductions (of 2–3 in some sites), creating a “toxic or treat” scenario for aquatic biodiversity. Statistical analyses, including principal component analysis (PCA), principal coordinate analysis (PCoA), and canonical correspondence analysis (CCA), indicate significant correlations between physical and chemical changes and macroinvertebrate assemblages. Collector-gatherers (e.g., Ch...
ID: 4946
Year: 2026
Products: Product Unavailable
Authors: Kuonen, M;
Application: Total;Species;isotope;nanoparticle;
Nitrogen-based plasmas have gained increasing attention as an alternative ion source for inductively coupled plasma mass spectrometry (ICP-MS), as nitrogen is environmentally friendlier and more cost-effective than argon, while also reducing the occurrence of argoncontaining spectral interferences. Recently, a high-power nitrogen-sustained microwave inductively coupled atmospheric-pressure plasma (N2 MICAP) has been introduced as an alternative ion source for elemental analyses. This novel source was coupled to a quadrupole mass spectrometer to investigate its analytical capabilities in element and isotope analyses of liquids with different sample introduction methods. The N2 MICAP-QMS instrument was characterized by analysing the influence of forward power and nebulizer gas flow rate on analyte sensitivity, plasma background, and polyatomic ion formation for conventional solution nebulization. The plasma background ions decreased with increasing nebulizer gas flow rate and decreasing ...
ID: 4945
Year: 2026
Products: Apex Q nebulizer at 60 ◦C, flow rate 5 L min−1
Authors: Stephanie, S;Tianqu, C;Roberto, C;Houssni, L;Anna, T;Yufang, H;Peeyush, K;Manousos, M;Lubna, D;K., G;Christoph, H;Gaëlle, U;Jean-Luc, J;Juanita, R;David, J;Claudia, M;Imad, E;G., S;S.H., P;R., D;
Application: Biological;
Although the organic fraction of PM2.5 has been extensively studied, there is a considerable gap in understanding the organic fraction of coarse particles with diameters between 2.5 and 10 µm. We investigate the composition of coarse organic aerosol (OA) across rural, suburban, and urban areas of Switzerland. Using Aerosol Mass Spectrometer analyses of water-soluble OA extracted from collected filter samples (one entire year, 441 samples per size fraction), we identified two distinct classes of coarse OA. The first class, which constitutes 41-81% of coarse organic carbon (OC), is associated with primary biological organic carbon (PBOC). PBOC is characterized by specific marker ions (e.g., C2H5O2+) and exhibits pronounced seasonal variation, with peak concentrations observed in the summer. This seasonal trend correlates with that of molecular markers such as arabitol and mannitol, as well as the fraction of biological particles determined by automated scanning electron microscopy coupl...
ID: 4943
Year: 2026
Products: seaFAST
Authors: Ritchhart, A;Allec, S;Butreddy, P;Kulesa, K;Wang, Q;Nguyen, D;Ziatdinov, M;Nakouzi, E;
Application: ~
We present a multi-agentic workflow for critical materials recovery that deploys a series of AI agents and automated instruments to recover critical materials from produced water and magnet leachates. This approach achieves selective precipitation from real-world feedstocks using simple chemicals, accelerating the development of efficient, adaptable, and scalable separations to a timeline of days, rather than months and years....
ID: 4941
Year: 2026
Products: 193 nm ArF excimer laser ablation system ESI 193 nm ArF with a TwoVol2
Authors: Boulogne, Q;Milesi, G;Peiffert, C;Fischer, E;Ballouard, C;Serdoun, M;Obin, T;Lecomte, A;Martz, P;Kaczowka, A;Mercadier, J;
Application: Laser;
Abstract. The use of in situ Rb-Sr geochronology has boomed in recent years following its implementation using LA-ICP-QQQ-MS technology, which enables fast, in situ analyses at the micron scale on selected minerals. The Rb-Sr geochronometer applied to micas is now commonly used to date the crystallization or cooling of metamorphic and magmatic rocks, based on the assumptions of a closed isotopic system after passing the closure temperature and of a homogeneous Sr isotopic composition at the time of crystallization. In situ Rb-Sr geochronology applied to micas and related alteration products in geological contexts involving hydrothermal fluid circulation affecting micas after crystallization could provide a new way to decipher the timing and duration of fluid circulation in various settings such as mountain belts or sedimentary basins. The behavior and applicability of the Rb-Sr system in such contexts are, however, poorly understood, as the system may be partially reopened with differe...
ID: 4940
Year: 2026
Products: micromill
Authors: Shakhtshneider, T;Skurydina, E;Myz, S;Kuznetsova, S;Lomovskiy, I;
Application: Environmental;Dissolved;Pharmaceutical;Drug;
Betulin, isolated from birch bark, is a valuable biologically active substance that exhibits a wide range of pharmacological activities. However, the poor water solubility of betulin limits its use in medical and pharmaceutical applications. Arabinogalactan is a biodegradable, water-soluble natural polysaccharide, that is is primarily isolated from larch wood. Mechanochemical technologies are increasingly recognized for their sustainability, environmental benefits, and efficiency in synthesizing a wide range of chemicals and materials. In this study, ball milling was used to obtain biologically active composites of betulin with arabinogalactan in binary and ternary systems using a heterocyclic α-amino acid L-histidine as a betulin co-former. The formation of mechanocomposites was confirmed by X-ray phase analysis, IR spectroscopy and thermal analysis. The intermolecular interactions of betulin with L-histidine and arabinogalactan inhibit drug crystallization, maintaining its molecular...
