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1. Characteristics and source apportionment of PM2.5 under the dual influence of the Spring Festival and the COVID-19 pandemic in Yuncheng city

Author:
Chen Zhang; Yingying Zhang; Xingang Liu; Yafei Liu; Chenlu Li
Source:
Journal of environmental sciences (China) 2023 v.125 pp. 553-567
ISSN:
1001-0742
Subject:
chemical composition,   etc   ; COVID-19 infection; air; business enterprises; coal; combustion; humidity; nitrogen; sulfur; vehicles (equipment); wind speed; China;     Show all 12 Subjects
Abstract:
... Based on the online and membrane sampling data of Yuncheng from January 1st to February 12th, 2020, the formation mechanism of haze under the dual influence of Spring Festival and COVID-19 (Corona Virus Disease) was analyzed. Atmospheric capacity, chemical composition, secondary transformation, source apportionment, backward trajectory, pollution space and enterprise distribution were studied. Low ...
DOI:
10.1016/j.jes.2022.02.020

2. Colonial chemical signature of social wasps and their nesting substrates

Author:
Denise Sguarizi-Antonio; Kamylla Balbuena Michelutti; Eva Ramona Pereira Soares; Nathan Rodrigues Batista; Sidnei Eduardo Lima-Junior; Claudia Andrea Lima Cardoso; Viviana de Oliveira Torres; William Fernando Antonialli-Junior
Source:
Chemoecology 2022 v.32 no.1 pp. 41-47
ISSN:
0937-7409
Subject:
chemical composition,   etc   ; nests;     Show all 2 Subject
Abstract:
... Social wasps build their nests using plant material and can thereby occupy different types of habitats. The organization of their colonies is generally based on complex communication systems that include chemical compounds of the cuticle that are shared with the material of their nests thus contributing to the specific chemical signature of their colony. These compounds can vary by environmental f ...
DOI:
10.1007/s00049-021-00361-5

3. Polycatenanes: synthesis, characterization, and physical understanding [Erratum: June 2022, v.51(12); p.5237]

Author:
Guancen Liu; Phillip M. Rauscher; Benjamin W. Rawe; Marissa M. Tranquilli; Stuart J. Rowan
Source:
Chemical Society reviews 2022 v.51 no.12 pp. 4928-4948
ISSN:
1460-4744
Subject:
chemical composition,   etc   ; catenanes; polymers;     Show all 3 Subjects
Abstract:
... Chemical composition and architecture are two key factors that control the physical and material properties of polymers. Some of the more unusual and intriguing polymer architectures are the polycatenanes, which are a class of polymers that contain mechanically interlocked rings. Since the development of high yielding synthetic routes to catenanes, there has been an interest in accessing their pol ...
DOI:
10.1039/d2cs00256f

4. Superior energy storage properties in NaNbO₃-based ceramics via synergistically optimizing domain and band structures

Author:
Weiwei Yang; Huarong Zeng; Fei Yan; Jinfeng Lin; Guanglong Ge; Yingbo Cao; Wentong Du; Kunyu Zhao; Guorong Li; Haijiao Xie; Jiwei Zhai
Source:
Journal of materials chemistry A 2022 v.10 no.21 pp. 11613-11624
ISSN:
2050-7496
Subject:
chemical composition,   etc   ; ceramics; energy;     Show all 3 Subjects
Abstract:
... Environment-friendly ceramic capacitors with outstanding energy storage properties (ESPs) are greatly desired for advanced pulsed power systems. However, it is still a great challenge to develop lead-free dielectric materials with simultaneous excellent recoverable energy storage density (Wᵣₑc) and energy storage efficiency (η). In the present work, a synergistic optimization strategy with regard ...
DOI:
10.1039/d2ta02534e

5. Formation of acrylamide in coffee

Author:
Tolgahan Kocadağlı; Vural Gökmen
Source:
Current opinion in food science 2022 v.45 pp. 100842
ISSN:
2214-7993
Subject:
chemical composition,   etc   ; acrylamides; digestion; potatoes; toxicity;     Show all 5 Subjects
Abstract:
... Presence of thermal processing contaminant in foods has long been taking attention due to their probable toxic effects. Roasting coffee beans at very high temperatures creates major changes in the chemical composition and in the physical properties. Coffee beverages are important contributor to the exposure to acrylamide following potato and cereal products. This review describes the changes durin ...
DOI:
10.1016/j.cofs.2022.100842

6. Preparations from Various Organs of Sea Buckthorn (Elaeagnus rhamnoides (L.) A. Nelson) as Important Regulators of Hemostasis and Their Role in the Treatment and Prevention of Cardiovascular Diseases

Author:
Beata Olas; Bartosz Skalski
Source:
Nutrients 2022 v.14 no.5 pp. -
ISSN:
2072-6643
Subject:
chemical composition,   etc   ; Elaeagnus; Hippophae rhamnoides; hemostasis;     Show all 4 Subjects
Abstract:
... Numerous studies on the chemical composition of various organs of sea buckthorn (Elaeagnus rhamnoides (L.) A. Nelson) have found the plant to be a rich source of vitamins, phenolic compounds, amino acids, fatty acids, and micro- and macro-elements. Furthermore, other studies on preparations from various organs have found them to have significant anti-cancer, anti-ulcer, and hepatoprotective proper ...
DOI:
10.3390/nu14050991

7. The Morphology and Chemical Composition of Siliceous Spicules of the Early Cambrian Sponge Lenica unica Gorjansky, 1977

Author:
A. L. Drozdov; A. Yu. Zhuravlev; A. A. Karpenko; K. A. Kolesnikov; A. Yu. Ivantsov
Source:
Russian journal of marine biology 2022 v.48 no.1 pp. 33-38
ISSN:
1063-0740
Subject:
chemical composition,   etc   ; Cambrian period; fossils; skeleton;     Show all 4 Subjects
Abstract:
... The chemical composition of sponge spicules was studied based on the debatable fossil early Cambrian sponge Lenica unica Gorjansky, 1977 from the Siberian Platform. The study has shown that the skeleton of this giant sponge is built of large monaxon megascleres that are a natural carbonate–silica–organic compound with a complicated chemical composition. The data we obtained confirm that the earlie ...
DOI:
10.1134/S1063074022010059

8. Level regime of Balkhash Lake as the indicator of the state of the environmental ecosystems of the region

Author:
Akhan Myrzakhmetov; Zhakypbay Dostay; Sayat Alimkulov; Aisulu Tursunova; Indira Sarsenova
Source:
Paddy and water environment 2022 v.20 no.3 pp. 315-323
ISSN:
1611-2490
Subject:
chemical composition,   etc   ; environment; lakes; morphometry; paddies; water;     Show all 6 Subjects
Abstract:
... The article presents the results of studies of the level regime of Lake Balkhash, which has a characteristic, consisting in the change in the average lake horizon, the changes in the magnitudes of the seasonal and inter-annual amplitudes of the levels, as well as their annual and long-term ones. All this involves the change in the lake table area and its outline on the map. The results of full-sca ...
DOI:
10.1007/s10333-022-00890-x

9. Measurement of atmospheric nanoparticles: Bridging the gap between gas-phase molecules and larger particles

Author:
Chao Peng; Chenjuan Deng; Ting Lei; Jun Zheng; Jun Zhao; Dongbin Wang; Zhijun Wu; Lin Wang; Yan Chen; Mingyuan Liu; Jingkun Jiang; Anpei Ye; Maofa Ge; Weigang Wang
Source:
Journal of environmental sciences (China) 2022 pp. -
ISSN:
1001-0742
Subject:
chemical composition,   etc   ; climate; human health; particulates; China;     Show all 5 Subjects
Abstract:
... Atmospheric nanoparticles are crucial components contributing to fine particulate matter (PM₂.₅), and therefore have significant effects on visibility, climate, and human health. Due to the unique role of atmospheric nanoparticles during the evolution process from gas-phase molecules to larger particles, a number of sophisticated experimental techniques have been developed and employed for online ...
DOI:
10.1016/j.jes.2022.03.006

10. A comprehensive review of the chemical composition and epicuticular wax morphology of the cuticle in Sapindales

Author:
Lucas Paradizo Roma; Déborah Yara A. C. Santos
Source:
Revista brasileira de botânica 2022 v.45 no.1 pp. 5-14
ISSN:
1806-9959
Subject:
chemical composition,   etc   ; Sapindales; epicuticular wax; hydrophobicity; transpiration; triterpenoids;     Show all 6 Subjects
Abstract:
... Cuticular waxes play an important role in plant survival in terrestrial environments. They are part of the cuticle and form a hydrophobic barrier associated with a decline in water loss through cuticular transpiration. Data on the chemical and morphological composition of cuticular waxes in Sapindales have been collected for more than 5th years. The present review compiles the data published for t ...
DOI:
10.1007/s40415-021-00723-x

11. Hierarchical carbon nanotubes@Ni/C foams for high-performance microwave absorption

Author:
Dawei Liu; Lei Yang; Fengyuan Wang; Hao Zhang; Jia Liu; Tong Lv; Hongjie Zhao; Yunchen Du
Source:
Carbon 2022 v.196 pp. 867-876
ISSN:
0008-6223
Subject:
chemical composition,   etc   ; absorption; carbon; carbon nanotubes; microstructure; pyrolysis;     Show all 6 Subjects
Abstract:
... The construction of special three-dimensional microstructure is becoming an extremely fascinating approach to upgrade the electromagnetic properties of carbon-based microwave absorption materials (MAMs) recently. Herein, we have demonstrated the successful fabrication of a series of carbon nanotubes (CNTs)@Ni/C foams (CNCFs) through two-step pyrolysis processes. It is found that the loading amount ...
DOI:
10.1016/j.carbon.2022.05.057

12. Investigating the Influence of Metal–Organic Framework Loading on the Filtration Performance of Electrospun Nanofiber Air Filters

Author:
Zhuolun Niu; Can Xiao; Jinhan Mo; Li Zhang; Chun Chen
Source:
ACS applied materials & interfaces 2022 v.14 no.23 pp. 27096-27106
ISSN:
1944-8252
Subject:
chemical composition,   etc   ; air; coordination polymers; filtration; nanofibers; polyacrylonitrile;     Show all 6 Subjects
Abstract:
... Integrating metal–organic frameworks (MOFs) into electrospun nanofiber filters has become an effective method for improving particle filtration efficiency. This study hypothesized that there is an optimal amount of MOFs that can be integrated into electrospun nanofiber filters to achieve the maximum particle removal efficiency while minimizing the corresponding MOF synthesis time. To test the hypo ...
DOI:
10.1021/acsami.2c06808

13. Sensory characterisation of Cognac eaux-de-vie aged in barrels subjected to different toasting processes

Author:
Mathilde Gadrat; Joël Lavergne; Catherine Emo; Pierre Louis Teissedre; Kleopatra Chira
Source:
OENO One 2022 v.56 no.1 pp. -
ISSN:
2494-1271
Subject:
chemical composition,   etc   ; alcohols; brandy; sensory evaluation; temperature; wood;     Show all 6 Subjects
Abstract:
... Toasting is a key step in the barrel-making process. It plays an important role in the breakdown of oak wood compounds and thus influences the chemical composition and organoleptic properties of wines and brandies. However, the effect of toasting on distilled spirit quality has not yet been extensively studied. The objective of this study was therefore to study the impact of toasting on cognac eau ...
DOI:
10.20870/oeno-one.2022.56.1.4853

14. Size-Exclusion Chromatography: A Twenty-First Century Perspective

Author:
André M. Striegel
Source:
Chromatographia 2022 v.85 no.4 pp. 307-313
ISSN:
0009-5893
Subject:
chemical composition,   etc   ; fractal dimensions; gel chromatography; molecular weight;     Show all 4 Subjects
Abstract:
... Now in its sixth decade, size-exclusion chromatography (SEC) remains the premier method by which to determine the molar mass averages and distributions of natural and synthetic macromolecules. Aided by its coupling to a variety and multiplicity of detectors, it has also shown its ability to characterize a host of other physicochemical properties, such as branching, chemical, and sequence length he ...
DOI:
10.1007/s10337-022-04143-1

15. Using segmental bioimpedance analysis to estimate soft tissue and chemical composition of retail cuts and carcasses of lambs

Author:
Anderson B. Moro; Yuri R. Montanholi; Diego B. Galvani; Pedro Bertemes-Filho; Rafael S. Venturini; Aliei M. Menegon; Juliene S. Rosa; Leila P. da Silva; Cleber C. Pires
Source:
Meat science 2022 v.183 pp. 108644
ISSN:
0309-1740
Subject:
chemical composition,   etc   ; bioelectrical impedance; carcass composition; neck; tissues;     Show all 5 Subjects
Abstract:
... This study evaluated the potential of segmental bioimpedance analysis (SBIA) to estimate the composition of retail cuts and their predictability to infer on the carcass composition in lambs. Leg, rib, shoulder, neck, and loin from thirty-one lamb carcasses were evaluated. A single-frequency bioelectrical impedance analyzer at 50 kHz was used to perform measurements. The models for estimating soft ...
DOI:
10.1016/j.meatsci.2021.108644

16. 3d printing and In Situ surface modification via type i photoinitiated reversible addition-fragmentation chain transfer polymerization

Author:
Corrigan Nathaniel; Boyer Cyrille
Source:
Journal of visualized experiments 2022 no.180 pp. e63538
ISSN:
1940-087X
Subject:
chemical composition,   etc   ; crosslinking; liquids; polymerization; polymers; three-dimensional printing;     Show all 6 Subjects
Abstract:
... 3D printing provides facile access to geometrically complex materials. However, these materials have intrinsically linked bulk and interfacial properties dependent on the chemical composition of the resin. In the current work, 3D printed materials are post-functionalized using the 3D printer hardware via a secondary surface-initiated polymerization process, thus providing independent control over ...
DOI:
10.3791/63538

17. Anthocyanins in Brassicaceae: composition, stability, bioavailability, and potential health benefits

Author:
Nan Zhang; Pu Jing
Source:
Critical reviews in food science and nutrition 2022 v.62 no.8 pp. 2205-2220
ISSN:
1549-7852
Subject:
chemical composition,   etc   ; Brassicaceae; anthocyanins; bioavailability; human nutrition; nutritive value;     Show all 6 Subjects
Abstract:
... Brassicaceae family includes various economic plants for edible or ornamental purposes. Brassicaceae vegetables are considered to be a major part of human diet as sources rich in phytochemicals. Among them, anthocyanins provide red to blue colors in Brassicaceae plants and as well have nutritional value and pharmaceutical potential. This review aims to summarize the chemical composition, stability ...
DOI:
10.1080/10408398.2020.1852170

18. Antioxidant and Photoprotective Potentials and Chemical Comparison of Three Species of Ocimum

Author:
Raul Cremonezi Piva; Maria Helena Verdan; Claudia Andrea Lima Cardoso
Source:
Journal of Biologically Active Products from Nature 2022 v.12 no.3 pp. 243-253
ISSN:
2231-1874
Subject:
chemical composition,   etc   ; Ocimum basilicum; antioxidants; flavonoids; maceration; radiation resistance;     Show all 6 Subjects
Abstract:
... Several species of the genus Ocimum are traditionally known and consumed by the population, but studies on aqueous extract composition are restricted to preparations by infusion. The aim of this study was to compare three different aqueous extractive methods (decoction, infusion, and maceration) of the leaves from Ocimum basilicum, O. gratissimum, and O. kilimandscharicum, using their chemical com ...
DOI:
10.1080/22311866.2022.2073268

19. Characteristics of Fungus-Tolerant Grapevine Cultivar ‘Morava’ Grown Under Organic and Conventional Management

Author:
Dragoslav Ivanišević; Mladen Kalajdžić; Petar Cindrić; Nada Korać; Predrag Božović
Source:
Contemporary Agriculture 2022 v.71 no.1-2 pp. 9-12
ISSN:
2466-4774
Subject:
chemical composition,   etc   ; Vitis; agriculture; cultivars; grapes; odors; viticulture; Serbia;     Show all 8 Subjects
Abstract:
... The Serbian fungus-tolerant grapevine cultivar ‘Morava’ has been recognized by both wine producers and consumers, resulting in increased areas devoted to the cultivar. ‘Morava’ (‘SK 77-7/4’ x ‘Bianca’, released in Sremski Karlovci) is a popular cultivar for white wines, particularly in the central part of Serbia, because of the interesting aroma profile of its wine. The objective of this research ...
DOI:
10.2478/contagri-2022-0002

20. Structural and Surface Studies of Luminescent Ca/Eu Phosphate Nanomaterials: From the Bulk to Surface Features

Author:
Pavlo Ivanchenko; Guillermo Escolano Casado; Lorenzo Mino; Luca Dassi; Jorge F. Fernández-Sánchez; Gianmario Martra; Jaime Gómez-Morales
Source:
Colloids and surfaces 2022 pp. 112620
ISSN:
0927-7765
Subject:
chemical composition,   etc   ; acidity; adsorption; biomimetics; energy; europium; hydroxyapatite; luminescence;     Show all 8 Subjects
Abstract:
... Three luminescent Eu-containing phosphate materials (Ca-doped europium phosphate monohydrate, Eu-doped carbonated-apatite, and europium phosphate monohydrate) were prepared and analyzed on the level of bulk structure and surface properties and compared to the biomimetic non-luminescent counterpart hydroxyapatite. Europium-containing phosphate materials exhibited nanosized dimensions but different ...
DOI:
10.1016/j.colsurfb.2022.112620