U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Publication year rev 7983-2017 Remove constraint Publication year rev: 7983-2017
Start Over

Search

266,719  Search Results

« Previous | 1 - 20 of 266,719 |
Number of results to display per page

Search Results

1. "Candidatus Liberibacter solanacearum" Associated With the Psyllid, Bactericera maculipennis (Hemiptera: Triozidae)

Author:
Karina M. Borges; W. Rodney Cooper; Stephen F. Garczynski; Jenita Thinakaran; Andy S. Jensen; David R. Horton; Joseph E. Munyaneza; Isabel Cueva; Nina M. Barcenas
Source:
Environmental entomology 2017 v.46 no.2 pp. 210-216
ISSN:
0046-225X
Subject:
Bactericera cockerelli; Candidatus Liberibacter solanacearum; Convolvulus arvensis; Solanaceae; Triozidae; adults; disease transmission; genetic markers; haplotypes; insect vectors; nucleotide sequences; pathogens; potatoes; prediction; ribosomal DNA; zebra chip disease; Idaho; Washington (state)
Abstract:
... The psyllid Bactericera maculipennis (Crawford) (Hemiptera: Triozidae) often cohabits field bindweed (Convolvulus arvensis, Solanales: Convolvulaceae) and other plants with the congeneric psyllid, Bactericera cockerelli (Sulc), in the Pacific Northwestern United States. Bactericera cockerelli is a vector of “Candidatus Liberibacter solanacearum,” the pathogen associated with zebra chip disease of ...
Handle:
10113/5678133
DOI:
10.1093/ee/nvw174

2. "Placebo effect is probably what we refer to as patient healing power": A qualitative pilot study examining how Norwegian complementary therapists reflect on their practice

Author:
Trine Stub; Nina Foss; Ingrid Liodden
Source:
BMC complementary and alternative medicine 2017 v.17 no.1 pp. 262
ISSN:
1472-6882
Subject:
alternative medicine; consciousness; focus groups; interviews; musculoskeletal system; patients; placebos
Abstract:
... BACKGROUND: Complementary therapists spend considerable time with their patients, especially in the first consultation. The communication between patients and their therapists is important for raising consciousness and activation of the patient’s self-healing power. Thus, the aims in this study were to delineate what complementary therapists regard as essential in patient consultations, their view ...
DOI:
10.1186/s12906-017-1770-8
PubMed:
28499371
PubMed Central:
PMC5429571

3. 'Can renewables meet total Australian energy demand: A “disaggregated” approach

Author:
Ted Trainer
Source:
Energy policy 2017 v.109 pp. 539-544
ISSN:
0301-4215
Subject:
electricity; embodied energy; energy costs; infrastructure
Abstract:
... Attempts to assess the possibility of deriving all energy from renewable sources typically deal only with the aggregate amount of energy required, and do not consider the implications and difficulties arising from the need for differing forms of energy. In a 100% renewable system some of these forms will have to be provided by conversion from others, mostly from electricity. Conversion involves in ...
DOI:
10.1016/j.enpol.2017.07.040

4. 'Chardonnay' grape juices from different types of phosphorus fertilizer treatments

Author:
L. R. Mathias; E. N. Fernandes; F. M. O. da C. Prado; J. F. L. de C. Cham; W. dos S. Triches; J. Saavedra del Aguila
Source:
Acta horticulturae 2017 v. no.1188 pp. -
ISSN:
0567-7572
Subject:
Fourier transform infrared spectroscopy; Vitis vinifera; acidity; brix; fertilizer application; grape must; grapes; growth retardation; pH; phosphorus; phosphorus fertilizers; potassium; root systems; total soluble solids; triple superphosphate; vines; Brazil
Abstract:
... On the vine, phosphorus deficiency causes a reduction in the development of the root system and growth retardation. This study aimed to define the best option in phosphorus fertilization of vines 'Chardonnay' as well of the quality of grape must. The experiments it was carried out by for the Core for Study, Research and Extension in Enology (NEPE2)/UNIPAMPA - Campus Dom Pedrito, RS, Brazil, with g ...
DOI:
10.17660/ActaHortic.2017.1188.32

5. 'Regina' on three dwarf cherry rootstocks and different planting distances in Alpe Adria Region

Author:
N. Fajt; E. Komel; V. Usenik; B. Donik Purgaj; M. Beber; A. Bisko; L. Folini
Source:
Acta horticulturae 2017 v. no.1161 pp. 287-292
ISSN:
0567-7572
Subject:
Prunus avium; cherries; cultivars; dwarfing; fruits; leaves; planting; rootstocks; spring; trees; vigor; Europe
Abstract:
... In spring 2006 sweet cherry cultivar ʻReginaʼ was planted on Gisela 3, Gisela 5 and Weiroot 72 at three tree spacings 1.5, 2.0 and 2.5 m in several locations of Alpe Adria region in Europe. After the sixth leaf results for tree vigour, productivity and fruit weight were evaluated. Tree vigour was affected by location, rootstock and rootstock × location combination. Trees in Maribor and Sondrio wer ...
DOI:
10.17660/ActaHortic.2017.1161.46

6. 'Som Kandarn' (Garcinia atroviridis Griff.), a high-potential cultivar for mixed-fruit-cropping orchards and backyard gardens in humid tropical environments

Author:
M. Issarakraisila; S. Somsri
Source:
Acta horticulturae 2017 no.1186 pp. 55-58
ISSN:
0567-7572
Subject:
Garcinia atroviridis; Garcinia gummi-guta; active ingredients; body weight; common names; cultivars; dried fruit; flavor; fruits; growers; home gardens; income; leaves; mountains; orchards; seedlings; soups; taste; villages; Thailand
Abstract:
... 'Som Kandarn', the local name of a cultivar of Garcinia atroviridis Griff., was found many years ago in Kiriwong village, Nakhon Si Thammarat province, southern Thailand. Growers have planted a few 'Som Kandarn' seedlings in mixed-fruit-cropping orchards in the mountains, especially in low-fertility areas. 'Som Kandarn' has been known in the village as an easy-to-grow fruit tree. Mainly the fruit ...
DOI:
10.17660/ActaHortic.2017.1186.8

7. (+) or (−)-1-(9-fluorenyl)ethyl chloroformate as chiral derivatizing agent: A review

Author:
Radu-Cristian Moldovan; Ede Bodoki; Anne-Catherine Servais; Jacques Crommen; Radu Oprean; Marianne Fillet
Source:
Journal of chromatography 2017 pp. -
ISSN:
0021-9673
Subject:
chromatography; derivatization; diastereomers; organochlorine compounds
Abstract:
... Over the last 30 years, (±)-1-(9-fluorenyl)ethyl chloroformate ((±)-FLEC) was used as a chiral derivatizing agent in various analytical applications involving a wide range of endogenous, pharmaceutical and environmentally relevant molecules.This comprehensive review aims to present all the significant aspects related to the state of the art in FLEC labeling and subsequent chiral separation of the ...
DOI:
10.1016/j.chroma.2017.07.045

8. (+)-Meyeniins A–C, Novel Hexahydroimidazo[1,5-c]thiazole Derivatives from the Tubers of Lepidium meyenii: Complete Structural Elucidation by Biomimetic Synthesis and Racemic Crystallization

Author:
Zhou Min; Ma Hang-Ying; Liu Zhi-Hua; Yang Guang-Yu; Du Gang; Ye Yan-Qing; Li Gan-Peng; Hu Qiu-Fen
Source:
Journal of agricultural and food chemistry 2017 v.65 no.9 pp. 1887-1892
ISSN:
1520-5118
Subject:
Lepidium meyenii; X-ray diffraction; biomimetic synthesis; circular dichroism spectroscopy; condensation reactions; crystallization; crystals; cytotoxicity; dietary supplements; enantiomers; functional foods; human cell lines; inhibitory concentration 50; neoplasms; thiazoles; tubers; China
Abstract:
... (+)-Meyeniins A–C (1–3), a novel class of sulfur-containing hexahydroimidazo[1,5-c]thiazole derivatives, were isolated from the tubers of Lepidium meyenii (maca) cultivated in Lijiang, Yunnan province, China. Guided by their biosynthetic hypothesis, a stereocontrolled biomimetic synthesis of meyeniins A–C and their individual enantiomers was efficiently accomplished by a combination of a condensat ...
DOI:
10.1021/acs.jafc.6b05805

9. (+)-Thalianatriene and (−)-Retigeranin B Catalyzed by Sesterterpene Synthases from Arabidopsis thaliana

Author:
Shao Jie; Chen Qing-Wen; Lv Hua-Jun; He Juan; Liu Zhi-Feng; Lu Yan-Na; Liu Hai-Li; Wang Guo-Dong; Wang Yong
Source:
Organic letters 2017 v.19 no.7 pp. 1816-1819
ISSN:
1523-7052
Subject:
Arabidopsis thaliana; X-ray diffraction; biosynthesis; chemical structure; derivatization; genes; nuclear magnetic resonance spectroscopy; organic compounds
Abstract:
... Two GFPPS linked (+)-thalianatriene (1) and (−)-retigeranin B (2) sesterterpene synthase genes were identified from the genome of Arabidopsis thaliana. 1 possesses an unprecedented 11–6–5 tricyclic ring system, while 2 contains a characteristic 5–5–5–6–5 pentacyclic ring system. Their structures were determined by extensive NMR spectroscopy, chemical derivatization, and X-ray crystallography. The ...
DOI:
10.1021/acs.orglett.7b00586

10. (-)-7(S)-hydroxymatairesinol protects against tumor necrosis factor-α-mediated inflammation response in endothelial cells by blocking the MAPK/NF-κB and activating Nrf2/HO-1

Author:
Di Yang; Chen-Xi Xiao; Zheng-Hua Su; Meng-Wei Huang; Ming Qin; Wei-Jun Wu; Wan-Wan Jia; Yi-Zhun Zhu; Jin-Feng Hu; Xin-Hua Liu
Source:
Phytomedicine 2017 v.32 pp. 15-23
ISSN:
0944-7113
Subject:
Western blotting; anti-inflammatory activity; antineoplastic activity; antioxidants; cardiovascular diseases; drugs; endothelial cells; fluorescent antibody technique; gene expression regulation; heme oxygenase (biliverdin-producing); inducible nitric oxide synthase; inflammation; interleukin-6; lignans; messenger RNA; mitogen-activated protein kinase; necrosis; pathogenesis; phosphorylation; quantitative polymerase chain reaction; reverse transcriptase polymerase chain reaction; signal transduction; superoxide dismutase; transcription factor NF-kappa B; tumor necrosis factor-alpha
Abstract:
... Endothelial inflammation is an increasingly prevalent condition in the pathogenesis of many cardiovascular diseases. (-)-7(S)-hydroxymatairesinol (7-HMR), a naturally occurring plant lignan, possesses both antioxidant and anti-cancer properties and therefore would be a good strategy to suppress tumor necrosis factor-α (TNF-α)-mediated inflammation in vascular endothelial cells (VECs).: The objecti ...
DOI:
10.1016/j.phymed.2017.04.005

11. A (001) dominated conjugated polymer with high-performance of hydrogen evolution under solar light irradiation

Author:
Jun Zhou; Yanhua Lei; Chenghai Ma; Wenhua Lv; Na Li; Ying Wang; Hu Xu; Zhigang Zou
Source:
Chemical communications 2017 v.53 no.76 pp. 10536-10539
ISSN:
1364-548X
Subject:
hydrogen production; irradiation; photocatalysis; polymers; solar radiation
Abstract:
... A two-dimensional imide-based conjugated polymer with a preferred (001) orientation was constructed by solvent-induced assembly. A high performance of 1640 μmol h⁻¹ g⁻¹ for solar-driven photocatalytic hydrogen evolution and an excellent stability were achieved due to tunnelling charge transport between the neighbouring molecular sheets. ...
DOI:
10.1039/c7cc06105f

12. (101) Plane-Oriented SnS2 Nanoplates with Carbon Coating: A High-Rate and Cycle-Stable Anode Material for Lithium Ion Batteries

Author:
Zhang Zijia; Zhao Hailei; Du Zhihong; Chang Xiwang; Zhao Lina; Du Xuefei; Li Zhaolin; Teng Yongqiang; Fang Jiejun; Świerczek Konrad
Source:
ACS applied materials & interfaces 2017 v.9 no.41 pp. 35880-35887
ISSN:
1944-8252
Subject:
anodes; carbon; coatings; electrical conductivity; lithium; lithium batteries; microstructure; nanomaterials; polyethylene glycol; sulfur; surfactants; tin
Abstract:
... Tin disulfide is considered to be a promising anode material for Li ion batteries because of its high theoretical capacity as well as its natural abundance of sulfur and tin. Practical implementation of tin disulfide is, however, strongly hindered by inferior rate performance and poor cycling stability of unoptimized material. In this work, carbon-encapsulated tin disulfide nanoplates with a (101) ...
DOI:
10.1021/acsami.7b11113

13. (1S,3R)-cis-Chrysanthemyl Tiglate: Sex Pheromone of the Striped Mealybug, Ferrisia virgata

Author:
Jun Tabata; Ryoko T. Ichiki
Source:
Journal of chemical ecology 2017 v.43 no.8 pp. 745-752
ISSN:
0098-0331
Subject:
Ferrisia virgata; adults; alcohols; arthropods; bioassays; carboxylic esters; enantiomers; gas chromatography-mass spectrometry; greenhouses; high performance liquid chromatography; insecticidal properties; insects; males; nuclear magnetic resonance spectroscopy; pyrethrins; sex pheromones; trapping
Abstract:
... Derivatives of 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylic acid (chrysanthemic acid) are classic natural pyrethroids discovered in pyrethrum plants and show insecticidal activity. Chrysanthemic acid, with two asymmetric carbons, has four possible stereoisomers, and most natural pyrethroids have the (1R,3R)-trans configuration. Interestingly, chrysanthemic acid–related structures are ...
DOI:
10.1007/s10886-017-0879-z

14. (2E,6Z,9Z)-2,6,9-Pentadecatrienal as a Male-Produced Aggregation-Sex Pheromone of the Cerambycid Beetle Elaphidion mucronatum

Author:
Jocelyn G. Millar; Robert F. Mitchell; Linnea R. Meier; Todd D. Johnson; Judith A. Mongold-Diers; Lawrence M. Hanks
Source:
Journal of chemical ecology 2017 v.43 no.11-12 pp. 1056-1065
ISSN:
0098-0331
Subject:
Xylotrechus colonus; adults; bioassays; field experimentation; males; pheromone traps; synthetic pheromones
Abstract:
... An increasing body of evidence suggests that the volatile pheromones of cerambycid beetles are much more diverse in structure than previously hypothesized. Here, we describe the identification, synthesis, and field testing of (2E,6Z,9Z)-2,6,9-pentadecatrienal as a male-produced aggregation-sex pheromone of the cerambycid Elaphidion mucronatum (Say) (subfamily Cerambycinae, tribe Elaphidiini). This ...
DOI:
10.1007/s10886-017-0905-1
CHORUS:
10.1007/s10886-017-0905-1

15. (2R,3S,2″R,3″R)-Manniflavanone Protects Proliferating Skeletal Muscle Cells against Oxidative Stress and Stimulates Myotube Formation

Author:
Acharya Suresh; Stark Timo D.; Oh Seung Tack; Jeon Songhee; Pak Sok Cheon; Kim Mina; Hur Jinyoung; Matsutomo Toshiaki; Hofmann Thomas; Hill Rodney A.; Balemba Onesmo B.
Source:
Journal of agricultural and food chemistry 2017 v.65 no.18 pp. 3636-3646
ISSN:
1520-5118
Subject:
Garcinia buchananii; ascorbic acid; bark; cytotoxicity; hydrogen peroxide; in vitro studies; lactic acid; muscle development; myoblasts; myosin heavy chains; myotubes; myricetin; oxidative stress; oxygen radical absorbance capacity; skeletal muscle
Abstract:
... We investigated the antioxidative properties of (2R,3S,2″R,3″R)-manniflavanone (MF) using in vitro assays and examined its effects on myogenesis and lactate-induced oxidative stress in C2C12 cells. MF was purified from Garcinia buchananii stem bark. H₂O₂ and oxygen radical absorbance capacity assays demonstrated that MF is a powerful antioxidant. This finding was supported by diphenylpicrylhydrazi ...
DOI:
10.1021/acs.jafc.6b05161
CHORUS:
10.1021/acs.jafc.6b05161

16. (2S)-Prenylflavanones and taraxerane triterpenoids from Mallotus mollissimus

Author:
Minh Giang Phan; Minh Trang Vu; Susumu Kawakami; Hideaki Otsuka
Source:
Biochemical systematics and ecology 2017 v.73 pp. 22-25
ISSN:
0305-1978
Subject:
Croton; apigenin; beta-sitosterol; flavanones; glycerol; leaves; methanol; nuclear magnetic resonance spectroscopy; oleanolic acid; spectral analysis
Abstract:
... Three prenylflavanones, (2S)-5,7-dihydroxy-4′-methoxy-8-(3″,3″-dimethylallyl)flavanone (3), (2S)-5,4′-dihydroxy-7-methoxy-6-(3″,3″-dimethylallyl)flavanone (6), 8-prenylnaringenin (11), and a new epimeric pair (2″S/2″R)-(2S)-5,7-dihydroxy-4′-methoxy-6-(2″-hydroxy-3″-methylbut-3″-enyl)flavanones (4a/4b) were isolated together with taraxerone, taraxerol, epitaraxerol, β-sitosterol, oleanolic acid, 1- ...
DOI:
10.1016/j.bse.2017.05.004

17. (2S,4R)-Hyp-(S)-Phe-OMe dipeptide supported on imidazolium tagged molecules as recoverable organocatalysts for asymmetric aldol reactions using water as reaction medium

Author:
Arturo Obregón-Zúñiga; Eusebio Juaristi
Source:
Tetrahedron 2017 v.73 pp. 5373-5380
ISSN:
0040-4020
Subject:
catalysts; chemical elements; chemical reactions; chemical structure; organic compounds; solvents; stereochemistry
Abstract:
... Four novel chiral imidazolium tagged molecules derived from dipeptide (2S,4R)-Hyp-(S)-Phe-OMe were prepared and evaluated as organocatalysts in the asymmetric aldol reaction using water as solvent. It was found that catalysts incorporating the hexanoyl linker are active down to 5 mol% and afford aldol products with up to 94% yield, up to 98:2 dr and up to 97:3 er. This chiral imidazolium catalyst ...
DOI:
10.1016/j.tet.2017.07.037

18. (3 + 2)-Annulation of p-Quinamine and Aryne: A Strategy To Construct the Multisubstituted Hydrocarbazoles

Author:
Xu Dengyu; Zhao Yulong; Song Dengpeng; Zhong Zhuliang; Feng Shangbiao; Xie Xingang; Wang Xiaolei; She Xuegong
Source:
Organic letters 2017 v.19 no.13 pp. 3600-3603
ISSN:
1523-7052
Subject:
carbon; chemical reactions; chemical structure; organic compounds
Abstract:
... A strategy for the synthesis of multisubstituted hydrocarbazoles has been developed through (3 + 2)-annulation of p-quinamines and arynes. In this way, new analogs of hydrocarbazoles with quaternary carbon center can be synthesized in satisfactory yield under mild conditions. Furthermore, this (3 + 2)-annulation can be easily scaled-up, and the products can be modified through simple transformatio ...
DOI:
10.1021/acs.orglett.7b01578

19. (4Z,15Z)‐Octadecadienoic Acid Inhibits Glycogen Synthase Kinase‐3β and Glucose Production in H4IIE Cells

Author:
Jun Yoshida; Shota Uesugi; Tetsuaki Kawamura; Ken‐ichi Kimura; Dawei Hu; Shuang Xia; Naoki Toyooka; Masao Ohnishi; Hideki Kawashima
Source:
Lipids 2017 v.52 no.3 pp. 295-301
ISSN:
0024-4201
Subject:
Saccharomyces cerevisiae; calcium signaling; eukaryotic cells; fatty acids; glucose; glycemic effect; glycogen (starch) synthase; gonads; hepatoma; inhibitory concentration 50; limpets; liver; mutants; phenotype; rats; tau-protein kinase; yeasts
Abstract:
... Many uncommon non‐methylene‐interrupted fatty acids (NMI FA) are present in limpet gonads, but their biological properties remain unknown. To investigate new biological effects of naturally occurring NMI FA in eukaryotic cells, the biological activities of structurally analogous (4Z,15Z)‐octadecadienoic acid (1), (9Z,20Z)‐tricosadienoic acid (2), and (12Z,23Z)‐hexacosadienoic acid (3) were examine ...
DOI:
10.1007/s11745-017-4236-3

20. (D)ₙ–σ–(A)ₘ type partially conjugated block copolymer and its performance in single-component polymer solar cells

Author:
Dae Hee Lee; Ji Hyung Lee; Hyung Jong Kim; Suna Choi; Gi Eun Park; Min Ju Cho; Dong Hoon Choi
Source:
Journal of materials chemistry A 2017 v.5 no.20 pp. 9745-9751
ISSN:
2050-7496
Subject:
chemistry; composite polymers; electric potential difference; solar cells; solar energy
Abstract:
... We synthesized two types of novel poly(3-alkylthiophene)-free (D)ₙ-b-(A)ₘ conjugated block copolymers: PTQI-block-PNDISs. PTQI-b-PNDIS is the fully conjugated block copolymer, in which the donor block is connected to the acceptor block via a π-conjugated unit. In addition, the donor block was connected to an acceptor block through a non-conjugated alkylene spacer, yielding PTQI-b-PNDISL, which is ...
DOI:
10.1039/c7ta01819c