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[PMID]: 29524922
[Au] Autor:Kong S; Yan Q; Zheng H; Liu H; Wang W; Zheng S; Yang G; Zheng M; Wu J; Qi S; Shen G; Tang L; Yin Y; Zhao T; Yu H; Liu D; Zhao D; Zhang T; Ruan J; Huang M
[Ad] Address:Department of Atmospheric Science, School of Environmental Studies, China University of Geosciences, Wuhan 430074, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing 210044, China. Electroni
[Ti] Title:Substantial reductions in ambient PAHs pollution and lives saved as a co-benefit of effective long-term PM pollution controls.
[So] Source:Environ Int;114:266-279, 2018 Mar 07.
[Is] ISSN:1873-6750
[Cp] Country of publication:Netherlands
[La] Language:eng
[Ab] Abstract:Under great efforts in fighting against serious haze problem of China since 2013, decreasing of air pollutants especially for fine particles (PM ) has been revealed for several key regions. This study tried to answer whether the reduction of PM -bound polycyclic aromatic hydrocarbons (PAHs) was coincident with PM because of long-term pollution control measures (PCM), and to assess source-oriented health risks associated with inhalation exposure to PAHs. Field measurements were carried out before and after the publishing of local air pollution protection plan for Nanjing, a mega-city in east China. Results indicated that the air quality was substantially improving, with a significant reduction in annual average PM by 34%, and moreover, PM -bound PAHs significantly reduced by 63% (p < 0.001). The remarkable reduction was mainly attributable to the change of emission sources, compared to the influence of atmospheric circulation patterns, surface meteorological conditions, and atmospheric chemical reaction. Four PAHs sources including coal combustion (CC), petroleum and oil burning (PO), wood burning (WB) and vehicle emission (VE) were identified. On an annual basis, contributions to ambient PM -PAHs from WB, PO, CC and VE sources in the period before the action of control measures were 2.26, 2.20, 1.96 and 5.62 ng m , respectively. They reduced to 1.09, 0.37, 1.31 and 1.77 ng m for the four source types, with the reduction percentages as 51, 83, 33 and 68%, respectively. The estimated reduction in lifetime lung cancer risk was around 61%. The study that firstly assessed the health effects of PAHs reduction as a co-benefit raised by air PCM sustained for a long period is believed to be applicable and referential for other mega-cities around the world for assessing the benefits of PCM.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180310
[Lr] Last revision date:180310
[St] Status:Publisher

  2 / 39624 MEDLINE  
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[PMID]: 29524876
[Au] Autor:Chang Z; Tian L; Wu M; Dong X; Peng J; Pan B
[Ad] Address:Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, PR China.
[Ti] Title:Molecular markers of benzene polycarboxylic acids in describing biochar physiochemical properties and sorption characteristics.
[So] Source:Environ Pollut;237:541-548, 2018 Mar 07.
[Is] ISSN:1873-6424
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:Biochar function in soil is based on properties such as sorption characteristics, and these are expected to change throughout the life cycle of the biochar. Because biochar particles cannot easily be separated from soil particles, this change is seldom investigated. Biochar-related molecular markers, such as benzene polycarboxylic acids (BPCAs) are promising tools for studying the properties of biochars in complex environmental matrices. In this study, biochars were derived from corn straw and pine wood sawdust at 200-500 C, and their aging was simulated with NaClO. Biochar properties were characterized by elemental analysis, BET surface characterization and BPCA molecular marker analysis. Chemical oxidation decreased the surface area (SA) but increased the O content of biochars. The oxidation decreased the amount of biochars, with a mass loss in the range of 10-55%. A similar mass loss was also observed for BPCAs and was negatively related to both the pyrolysis temperature and the extent of the condensed structure (higher aromaticity). The biochar amounts were calculated quantitatively using the sum of BPCA contents, with a conversion factor (the ratio of biochar amount to BPCA content) in the range of 3.3-5.5, and were negatively related to the B5CA content. Three model pollutants, namely, bisphenol A (BPA), sulfamethoxazole (SMX), and phenanthrene (PHE), were chosen to study the sorption characteristics of biochar before and after oxidation. Chemical oxidation generally increased SMX sorption but decreased PHE sorption. The nonlinear factor n, based on Freundlich equation modeling, was negatively related to B6CA for all three chemicals. The BPCA molecular markers, especially B5CA and B6CA, were correlated to the biochar properties before and after oxidation and are thus a potentially useful technique for describing the characteristics of biochar in the environment.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180310
[Lr] Last revision date:180310
[St] Status:Publisher

  3 / 39624 MEDLINE  
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[PMID]: 29524746
[Au] Autor:Li Y; Altaner C
[Ad] Address:School of Forestry, University of Canterbury, Private Bag 4800, Christchurch, New Zealand.
[Ti] Title:Predicting extractives content of Eucalyptus bosistoana F. Muell. Heartwood from stem cores by near infrared spectroscopy.
[So] Source:Spectrochim Acta A Mol Biomol Spectrosc;198:78-87, 2018 Mar 01.
[Is] ISSN:1873-3557
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:Time and resource are the restricting factors for the wider use of chemical information of wood in tree breeding programs. NIR offers an advantage over wet-chemical analysis in these aspects and is starting to be used for tree breeding. This work describes the development of a NIR-based assessment of extractive content in heartwood of E. bosistoana, which does not require milling and conditioning of the samples. This was achieved by applying the signal processing algorithms (external parameter orthogonalisation (EPO) and significance multivariate correlation (sMC)) to spectra obtained from solid wood cores, which were able to correct for moisture content, grain direction and sample form. The accuracy of extractive content predictions was further improved by variable selection, resulting in a root mean square error of 1.27%. Considering the range of extractive content in E. bosistoana heartwood of 1.3 to 15.0%, the developed NIR calibration has the potential to be used in an E. bosistoana breeding program or to assess the special variation in extractive content throughout a stem.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180310
[Lr] Last revision date:180310
[St] Status:Publisher

  4 / 39624 MEDLINE  
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[PMID]: 29524651
[Au] Autor:Il Kim S; De Medeiros BAS; Byun BK; Lee S; Kang JH; Lee B; Farrell BD
[Ad] Address:Museum of Comparative Zoology, Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, Massachusetts, USA. Electronic address: sikim@g.harvard.edu.
[Ti] Title:West meets east: How do rainforest beetles become circum-Pacific? Evolutionary origin of Callipogon relictus and allied species (Cerambycidae: Prioninae) in the New and Old Worlds.
[So] Source:Mol Phylogenet Evol;, 2018 Mar 07.
[Is] ISSN:1095-9513
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:The longhorn beetle genus Callipogon Audinet-Serville represents a small group of large wood-boring beetles whose distribution pattern exhibits a unique trans-Pacific disjunction between the East Asian temperate rainforest and the tropical rainforest of the Neotropics. To understand the biogeographic history underlying this circum-Pacific disjunct distribution, we reconstructed a molecular phylogeny of the subfamily Prioninae with extensive sampling of Callipogon using multilocus sequence data of 99 prionine and four parandrine samples (ingroups), together with two distant outgroup species. Our sampling of Callipogon includes 18 of the 24 currently accepted species, with complete representation of all species in our focal subgenera. Our phylogenetic analyses confirmed the purported affinity between the Palearctic Callipogon relictus and its Neotropical congeners. Furthermore, based on molecular dating under the fossilized birth-death (FBD) model with comprehensive fossil records and probabilistic ancestral range reconstructions, we estimated the crown group Callipogon to have originated in the Paleocene circa 60 million years ago (Ma) across the Neotropics and Eastern Palearctics. The divergence between the Palearctic C. relictus and its Neotropical congeners is explained as the result of a vicariance event following the demise of boreotropical forest across Beringia at the Eocene-Oligocene boundary. As C. relictus represents the unique relictual species that evidentiates the lineage's expansive ancient distribution, we evaluated its conservation importance through species distribution modelling. Though we estimated a range expansion for C. relictus by 2050, we emphasize a careful implementation of conservation programs towards the protection of primary forest across its current habitats, as the species remains highly vulnerable to habitat disturbance.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180310
[Lr] Last revision date:180310
[St] Status:Publisher

  5 / 39624 MEDLINE  
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[PMID]: 29524495
[Au] Autor:Osman WHW; Lin MI; Kondo K; Nagata T; Katahira M
[Ad] Address:Graduate School of Energy Science, Kyoto University, Japan.
[Ti] Title:Characterization of the glutathione S-transferases that belong to the GSTFuA class in Ceriporiopsis subvermispora: Implications in intracellular detoxification and metabolism of wood-derived compounds.
[So] Source:Int J Biol Macromol;, 2018 Mar 07.
[Is] ISSN:1879-0003
[Cp] Country of publication:Netherlands
[La] Language:eng
[Ab] Abstract:Glutathione S-transferases (GSTs) of wood-degrading fungi play essential roles in cellular detoxification processes and endogenous metabolism. Fungal GSTs of GSTFuA class are suggested to be involved in lignin degradation. Ceriporiopsis subvermispora is one of the important model fungi of the selective lignin degraders, we found it interesting to study its GSTs. Here, we characterized the activities of two GSTs of the GSTFuA class of C. subvermispora (CsGST63524 and CsGST83044). A high-yield expression systems involving Escherichia coli was developed for each of these enzymes. Both enzymes were found to exhibit GSH-conjugation activity toward 1-chloro-2,4-dinitrobenzene, and GSH-peroxidase activity toward cumene hydroperoxide. Both enzymes showed high GSH-conjugation activity under basic conditions (pH 8.0 to 9.0), and the optimum temperature for their activity was 40 C. In addition, three fluorescent compounds were used i.e., methylumbelliferyl acetovanillone was used to monitor etherase activity, and 5-chloromethylfluorescein diacetate and 4-methylumbelliferyl acetate to monitor esterase activity. CsGST83044 exhibited both etherase and esterase activities, while CsGST63524 displayed only esterase activity, which was much higher than that of CsGST83044. These findings imply the functional diversity of the GSTFuA class GSTs of C. subvermispora, suggesting that each protein plays distinctive roles in both the fungal detoxification system and wood compound metabolism.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180310
[Lr] Last revision date:180310
[St] Status:Publisher

  6 / 39624 MEDLINE  
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[PMID]: 29506540
[Au] Autor:Kromann AB; Ousager LB; Ali IKM; Aydemir N; Bygum A
[Ad] Address:Department of Dermatology and Allergy Centre, J.B. Winslws Vej 4 , Entrance 142, 5000, Odense C, Denmark.
[Ti] Title:Pigmentary mosaicism: a review of original literature and recommendations for future handling.
[So] Source:Orphanet J Rare Dis;13(1):39, 2018 Mar 05.
[Is] ISSN:1750-1172
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:BACKGROUND: Pigmentary mosaicism is a term that describes varied patterns of pigmentation in the skin caused by genetic heterogeneity of the skin cells. In a substantial number of cases, pigmentary mosaicism is observed alongside extracutaneous abnormalities typically involving the central nervous system and the musculoskeletal system. We have compiled information on previous cases of pigmentary mosaicism aiming to optimize the handling of patients with this condition. Our study is based on a database search in PubMed containing papers written in English, published between January 1985 and April 2017. The search yielded 174 relevant and original articles, detailing a total number of 651 patients. RESULTS: Forty-three percent of the patients exhibited hyperpigmentation, 50% exhibited hypopigmentation, and 7% exhibited a combination of hyperpigmentation and hypopigmentation. Fifty-six percent exhibited extracutaneous manifestations. The presence of extracutaneous manifestations in each subgroup varied: 32% in patients with hyperpigmentation, 73% in patients with hypopigmentation, and 83% in patients with combined hyperpigmentation and hypopigmentation. Cytogenetic analyses were performed in 40% of the patients: peripheral blood lymphocytes were analysed in 48%, skin fibroblasts in 5%, and both analyses were performed in 40%. In the remaining 7% the analysed cell type was not specified. Forty-two percent of the tested patients exhibited an abnormal karyotype; 84% of those presented a mosaic state and 16% presented a non-mosaic structural or numerical abnormality. In patients with extracutaneous manifestations, 43% of the cytogenetically tested patients exhibited an abnormal karyotype. In patients without extracutaneous manifestations, 32% of the cytogenetically tested patients exhibited an abnormal karyotype. CONCLUSION: We recommend a uniform parlance when describing the clinical picture of pigmentary mosaicism. Based on the results found in this review, we recommend that patients with pigmentary mosaicism undergo physical examination, highlighting with Wood's light, and karyotyping from peripheral blood lymphocytes and skin fibroblasts. It is important that both patients with and without extracutaneous manifestations are tested cytogenetically, as the frequency of abnormal karyotype in the two groups seems comparable. According to the results only a minor part of patients, especially those without extracutaneous manifestations, are tested today reflecting a need for change in clinical practice.
[Pt] Publication type:JOURNAL ARTICLE; REVIEW
[Em] Entry month:1803
[Cu] Class update date: 180311
[Lr] Last revision date:180311
[St] Status:In-Data-Review
[do] DOI:10.1186/s13023-018-0778-6

  7 / 39624 MEDLINE  
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[PMID]: 29458099
[Au] Autor:Fahey LM; Nieuwoudt MK; Harris PJ
[Ad] Address:School of Biological Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand. Electronic address: lfah338@aucklanduni.ac.nz.
[Ti] Title:Using near infrared spectroscopy to predict the lignin content and monosaccharide compositions of Pinus radiata wood cell walls.
[So] Source:Int J Biol Macromol;113:507-514, 2018 Feb 17.
[Is] ISSN:1879-0003
[Cp] Country of publication:Netherlands
[La] Language:eng
[Ab] Abstract:Near infrared (NIR) spectroscopy coupled with partial least squares (PLS-1) regression was used to predict the lignin contents and monosaccharide compositions of milled wood of Pinus radiata. The effects of particle size and moisture content were investigated by collecting NIR spectra of four sample types: large (<0.422mm) and small (<0.178mm) particles, in both ambient and dry conditions. PLS-1 models were constructed using mixtures of compression wood (CW) and opposite wood (OW) that provided a linear range of cell-wall compositions. Our results show that lignin contents and monosaccharide compositions of pure CWs and OWs can be successfully predicted using NIR spectra of all four sample types. However, large particles in ambient conditions have the most efficient preparation and the standard error (SE) values for lignin (2.10%), arabinose (0.34%), xylose (1.33%), galactose (2.54%), glucose (6.98%), mannose (1.48%), galacturonic acid (0.22%), glucuronic acid (0.06%), and 4-O-methylglucuronic acid (0.25%) were achieved.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1802
[Cu] Class update date: 180310
[Lr] Last revision date:180310
[St] Status:Publisher

  8 / 39624 MEDLINE  
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[PMID]: 29427708
[Au] Autor:de Souza Salgado YC; Boia Ferreira M; Zablocki da Luz J; Filipak Neto F; Oliveira Ribeiro CA
[Ad] Address:Departamento de Biologia Celular, Universidade Federal do Paran, Cx. Postal 19031, CEP 81.531-990 Curitiba, PR, Brazil. Electronic address: yvannacarla@hotmail.com.
[Ti] Title:Tribromophenol affects the metabolism, proliferation, migration and multidrug resistance transporters activity of murine melanoma cells B16F1.
[So] Source:Toxicol In Vitro;50:40-46, 2018 Feb 08.
[Is] ISSN:1879-3177
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:Murine melanoma cells B16F1 were exposed to the flame retardant and wood preservative chemical 2,4,6-tribromophenol (TBP) during 24 and 48 h, at the concentrations found in human diet. TBP-exposed cells had increased MTT and Alamar blue metabolism and ABCB5 mRNA levels (qPCR), but the cells had decreased proliferation (crystal violet assay), migration (scratch assay), and drug-effux transporters activity (rhodamine B efflux assay). Exposure to TBP did not affect the cell viability (neutral red and annexin V-PI assays), colony formation (colony number, clonogenic assay), and the levels of reactive oxygen species (DCF probe) or P53 mRNA (qPCR). The tested TBP concentrations had low toxicity to melanoma cells B16F1. However, dual effect on metastatic profile and chemoresistance suggests that the increase of ABCB5 positively modulates the cell chemoresistance, but decreases cell migration and proliferation. These findings may be explored in cancer therapy.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1802
[Cu] Class update date: 180310
[Lr] Last revision date:180310
[St] Status:Publisher

  9 / 39624 MEDLINE  
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[PMID]: 29523379
[Au] Autor:Tourniaire G; Milsi C; Baleine J; Crozier J; Lapeyre C; Combes C; Nagot N; Cambonie G
[Ad] Address:Dpartement de pdiatrie nonatale et ranimations, centre hospitalier universitaire de Montpellier, hpital Arnaud-de-Villeneuve, ple hospitalo-universitaire femme-mre-enfant, 371, avenue du Doyen-Gaston-Giraud, 34295 Montpellier cedex 5, France.
[Ti] Title:L'anmie, un nouveau facteur de svrit de la bronchiolite aigu du nourrisson? [Anemia, a new severity factor in young infants with acute viral bronchiolitis?]
[So] Source:Arch Pediatr;, 2018 Mar 06.
[Is] ISSN:1769-664X
[Cp] Country of publication:France
[La] Language:fre
[Ab] Abstract:INTRODUCTION: The role of anemia is raised as a risk of low respiratory infection of the child, but there are no data on anemia as a severity factor in acute viral bronchiolitis (AVB) in infants. METHODS: All infants less than 16 weeks old admitted to Montpellier University Hospital from 2015/10/01 to 2016/04/01 for AVB were included in a retrospective observational study. The primary objective was to determine whether the hemoglobin (Hb) concentration on admission was an independent factor of clinical severity, judged by the modified Wood's clinical asthma score (m-WCAS). The secondary objective was to assess the impact of Hb level on the characteristics of hospitalization, including the type and duration of respiratory support. RESULTS: The m-WCAS was used at least once during hospitalization in 180 out of 220 patients (82%), making it possible to distinguish patients with mild AVB (maximum m-WCAS<2, n=81) from patients with severe AVB (maximum m-WCAS>2, n=99). A logistic regression model indicated that the Hb concentration, for every 1g/dL decrement, was an independent factor of AVB severity (OR 1.16 [1.03-1.29], P=0.026). A level under 10g/dL on admission was associated with a higher use of continuous positive airway pressure (P<0.001), as well as a longer duration of respiratory support (P=0.01). CONCLUSION: This study suggested that anemia may influence the clinical expression of AVB in young infants.
[Pt] Publication type:ENGLISH ABSTRACT; JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180310
[Lr] Last revision date:180310
[St] Status:Publisher

  10 / 39624 MEDLINE  
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[PMID]: 29522320
[Au] Autor:Kishani S; Vilaplana F; Xu W; Xu C; Wgberg L
[Ti] Title:On the solubility of softwood hemicelluloses.
[So] Source:Biomacromolecules;, 2018 Mar 09.
[Is] ISSN:1526-4602
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:It is demonstrated that the molecular solubility of softwood hemicelluloses is significantly influenced by pre-treatment of the fibers, extraction and downstream processing. To quantify these effects, four hemicellulose samples were extracted from different thermomechanical pulps of Norway spruce. The molecular solubility of the samples was characterized by size and molar mass distributions, and the morphology of the molecules was studied using high resolution microscopy techniques. All extracted samples were well dispersed in aqueous media creating transparent dispersions but dynamic light scattering measurements showed that molecular solubility can only be achieved using specific pretreatments and extractions. The procedure yields acetylated galactoglucomannan (AcGGM)-rich hemicelluloses with an average molar mass of 21-35 kDa, and a diameter of 10 nm but also shown that water is a poor solvent for this sample since an association is detected as soon as the concentration is above ca. 20 g/L. These associated hemicellulose dispersions are still absolutely clear on visual inspection, underlining the need for careful measurement when assessing the solubility of wood hemicelluloses.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180309
[Lr] Last revision date:180309
[St] Status:Publisher
[do] DOI:10.1021/acs.biomac.8b00088


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