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GENERATION AND COLLECTION OF TOBACCO AEROSOL FOR SHISHA
Published 2020-11-01“…Qualitative characteristics of tobacco aerosol for shisha are determined by the functional purpose and depend on the component composition of the tobacco mixture and the coal used.The purpose of the research is to develop a methodology for the comprehensive assessment of tobacco for shisha based on modern methods of product quality control and includes the following steps:- monitoring of the studies to determine the component composition of the hookah mixture and the aerosol produced;- analysis of hookah mixture testing modes and development of an aerosol generation protocol;- development of a method for collecting aerosol on a laboratory smoking machine; - quantitative analysis of toxic analytes by HPLC MS / MS method.Methods have been developed for the machine generation and collection of tobacco aerosol for hookah, taking into account low concentrations of the analyzed toxic substances.The expediency of using the HPLC MS / MS method to determine the quantity of the following substances in tobacco aerosol for shisha has been substantiated:- carbonyl compounds (formaldehyde, acetaldehyde, acrolein) by detection on an electrospray source in the negative polarity mode- tobacco specific nitrosoamines (NNN and NNK) by detection on an electrospray source in the positive polarity mode.During the research laboratory and analytical equipment was used: a five-channel linear CERULEAN SM 405 smoking machine; Thermo Scientific Dionex UltiMate 3000 liquid chromatograph and TSQ Quantiva mass spectrometer.Obtaining experimental data on the quantitative determination of the component composition of the aerosol produced by tobacco for shisha using hookah systems is relevant for assessing toxic characteristics of the product.…”
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1182
Spatial and Temporal Variation of Annual Precipitation in a River of the Loess Plateau in China
Published 2014-01-01Get full text
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1183
Investigation of high fecundity genes by nanopore sequencing in sheep (Ovis aries) pituitary
Published 2025-06-01Get full text
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1184
Adipose tissue oxylipin profile changes with subclinical ketosis and depot in postpartum dairy cows
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1185
Predicting the Likelihood of Operational Risk Occurrence in the Banking Industry Using Machine Learning Algorithms
Published 2025-12-01“…Machine learning models can process complex datasets, identify hidden patterns, and facilitate early risk detection, enabling banks to implement preventive measures before risks materialize. …”
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1186
BioFire FilmArray Meningitis/Encephalitis Panel Utilised for the Unsolved Cases of Meningitis/Encephalitis: A Cross-sectional Study
Published 2025-08-01“…Introduction: Syndrome-based diagnosis of various infections is increasingly important. Even in resource-limited countries, adopting a syndrome-based method is essential, as Meningitis/Encephalitis (ME) can be caused by a multitude of agents that require detection through a multiplex assay. …”
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1187
Direction of Arrival Estimation Based on the Multistage Nested Wiener Filter
Published 2015-02-01“…The computation of the proposed method is simple, and the number of detectable signal sources could exceed the number of antenna elements.…”
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Non-onsite symmetries and quantum teleportation in split-index matrix product states
Published 2025-05-01“…On the computational side, the spin chains represent a new class of states that can be used to deterministically teleport information across long distances, with the novel property that the necessary classical side processing is a non-linear function of the measurement outcomes. We also give examples of states that can serve as universal resources for measurement-based quantum computation, providing the first examples of such resources without entanglement spectrum degeneracy. …”
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1190
Insect seedling herbivory is influenced by multiple factors, but the plant apparency theory is more supported than other hypotheses – A case study in a subtropical forest
Published 2025-04-01“…This, in turn, exerts a significant influence on forest community diversity and structure, as well as ecosystem function and stability. Notable variation in herbivory has been detected both among and within plant species. …”
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In situ, modeled, and earth observation monitoring of surface water availability in West African rangelands
Published 2025-06-01“…The 12 locations can function as sentinel ponds to monitor local water availability. …”
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1194
A Novel Method for Traceability of Crude Oil Leakage on Offshore Platforms Based on Improved YOLOv5 Model Multi-Target Identification and Correlation Analysis
Published 2025-01-01“…Based on the positional relationship between the spilled crude oil target and the source target detection anchor frame, the possible source targets are classified into three association levels and assigned different association weights. …”
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1195
Molecular mechanisms of leukemogenesis
Published 2022-11-01“…Such targets can be enzymes, proteins with other (non-enzymatic) functions, genomic DNA, mRNA, or, for example, certain lipid components of cell membranes. …”
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Soil methane emission suppression control using unmanned aircraft vehicle swarm application of biochar mulch - A simulation study
Published 2023-05-01“…In this paper, we present a soil methane emissions suppression approach using swarms of unmanned aerial vehicles (UAVs), by spreading biochar mulch on top of the detected methane emissions area/source. Soil microorganisms can produce methane and release it into the atmosphere causing climate change such as global warming. …”
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Genotyping from targeted NGS data based on a small set of SNPs correctly matches patient samples
Published 2025-07-01“…In two cohorts of totally 1441 patients with sequential samples, we could identify 3 sample swaps, 7 mislabelled samples (3 externally and 4 internally) and 1 mistake of unknown origin. We provide an R function for automated detection of sample swaps and mislabelling to the community as a free and open-source tool.…”
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Blind super-resolution network based on local fuzzy discriminative loss for fabric data augmentation
Published 2025-01-01“…In the field of fabric defect detection, the development of algorithms has been hindered by issues such as poor quality and limited quantity of open-source datasets. …”
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Evaluation of the authenticity of Citri Grandis Exocarpium based on metabolomics and transcriptomics
Published 2025-01-01“…Flavonoids related to medicinal effects, such as naringin and hesperidin, were significantly more abundant in Huazhou pomelo than in Sanhong pomelo, with compounds such as 5-demethylnobiletin detected only in Huazhou pomelo. The integrative metabolomics and transcriptomics analysis identified 11 key structural genes and transcription factors potentially involved in flavonoid biosynthesis, providing candidate targets for functional validation. …”
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