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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. "My naturesound" - nature observations with sound recordings

Author:
Veljo Runnel; Marko Peterson; Allan Zirk
Source:
Biodiversity data journal 2017 v.5 pp. e20200
ISSN:
1314-2828
Subject:
biodiversity; data collection; ornithology; taxonomy; California
Abstract:
... Online systems for observation reporting by citizen scientists have been operating for many years. iNaturalist (California Academy of Sciences 2016), eBird (Cornell Lab of Ornithology 2016) and Observado (Observation International 2016) are well-known international systems, Artportalen (Swedish Species Information Centre 2016) and Artsobservasjoner (Norwegian Biodiversity Information Centre 2016) ...
DOI:
10.3897/BDJ.5.e20200

3. "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

4. '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

5. '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

6. 'Jen-Ju Bar' guava exhibited a non-climacteric ripening behavior resulting from a defect in the expression of System-2 ACC synthase PgACS1

Author:
Kuo-En Chen; Te-Chun Liu; Yu-Chang Liu; Chun-Ta Wu
Source:
Acta horticulturae 2017 no.1166 pp. 63-70
ISSN:
0567-7572
Subject:
1-aminocyclopropane-1-carboxylate synthase; 1-methylcyclopropene; Psidium guajava; aminocyclopropanecarboxylate oxidase; biochemical pathways; clones; color; complementary DNA; cultivars; ethylene; gene expression; genes; guavas; pericarp; pulp; ripening
Abstract:
... The non-climacteric ripening characteristics, including delayed peel coloration and pulp softening, of 'Jen-Ju Bar' ('JJB') guava (Psidium guajava L.) is a result of a reduction in the usually massive amount of ethylene produced during the ripening stage. To elucidate the underlying physiological mechanism, four cDNA clones of ACC synthase (PgACS1 and PgACS2) and ACC oxidase (PgACO1 and PgACO2), t ...
DOI:
10.17660/ActaHortic.2017.1166.9

7. 'Malling Centenary', a short-day strawberry cultivar from NIAB-EMR

Author:
A. B. Whitehouse; D. W. Simpson; A. W. Johnson; K. J. McLeary; A. J. Passey; S. W. Troop
Source:
Acta horticulturae 2017 no.1156 pp. 185-188
ISSN:
0567-7572
Subject:
breeding; breeding programs; brix; cultivars; flavor; growers; markets; retail marketing; shelf life; strawberries; vigor; Northern European region; United Kingdom
Abstract:
... Since 1988, the strawberry breeding programme at East Malling has successfully released 43 cultivars primarily for the Northern European market. The latest cultivar release, 'Malling Centenary', represents the first mainstream cultivar developed under the direction of East Malling Strawberry Breeding Club (EMSBC) which was formed in 2008 to continue the development of new strawberry cultivars at E ...
DOI:
10.17660/ActaHortic.2017.1156.27

8. '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

9. 'Renaissance' of flavor: portrait of a new European strawberry cultivar

Author:
K. Olbricht; U. Gerischer; K. Weiß; D. Ulrich
Source:
Acta horticulturae 2017 no.1156 pp. 635-642
ISSN:
0567-7572
Subject:
odors; backcrossing; strawberries; sensory evaluation; lactones; headspace analysis; industry; plant breeders; clones; genotype; horticulture; solid phase microextraction; introgression; cultivars; flavor; markets; linalool; Fragaria chiloensis; gas chromatography; pedigree
Abstract:
... In the history of strawberry breeding, selection for aroma was mainly conducted to avoid untypical flavor notes. The depleted aroma patterns of modern cultivars resulted from fixation on breeding goals like high yield, large, firm and optically attractive fruit. Genetic erosion was clearly demonstrated in comparative studies using old and modern cultivars. Wild species introgression can serve to i ...
DOI:
10.17660/ActaHortic.2017.1156.93

10. '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

11. (+) 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

12. (+)- and (−)-Ecarlottones, Uncommon Chalconoids from Fissistigma latifolium with Pro-Apoptotic Activity

Author:
Charlotte Gény; Alma Abou Samra; Pascal Retailleau; Bogdan I. Iorga; Hristo Nedev; Khalijah Awang; Fanny Roussi; Marc Litaudon; Vincent Dumontet
Source:
Journal of natural products 2017 v.80 no.12 pp. 3179-3185
ISSN:
1520-6025
Subject:
apoptosis; bark; chemical structure; nuclear magnetic resonance spectroscopy; spectral analysis
Abstract:
... Four new compounds, (+)- and (−)-ecarlottone (1), (±)-fislatifolione (5), (±)-isofislatifolione (6), and (±)-fislatifolic acid (7), and the known desmethoxyyangonin (2), didymocarpin-A (3), and dehydrodidymocarpin-A (4) were isolated from the stem bark of Fissistigma latifolium, by means of bioassay-guided purification using an in vitro affinity displacement assay based on the modulation of Bcl-xL ...
DOI:
10.1021/acs.jnatprod.7b00494

13. (+)-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

14. (+)-Strebloside-Induced Cytotoxicity in Ovarian Cancer Cells Is Mediated through Cardiac Glycoside Signaling Networks

Author:
Chen Wei-Lun; Ren Yulin; Ren Jinhong; Erxleben Christian; Johnson Michael E.; Gentile Saverio; Kinghorn A. Douglas; Swanson Steven M.; Burdette Joanna E.
Source:
Journal of natural products 2017 v.80 no.3 pp. 659-669
ISSN:
1520-6025
Subject:
Streblus asper; adverse effects; anticarcinogenic activity; antineoplastic activity; antineoplastic agents; apoptosis; bark; cytotoxicity; digitoxin; digoxin; humans; in vitro studies; interphase; mitogen-activated protein kinase; molecular models; mutants; neoplasm cells; ouabain; ovarian neoplasms; transcription factor NF-kappa B; Vietnam
Abstract:
... (+)-Strebloside, a cardiac glycoside isolated from the stem bark of Streblus asper collected in Vietnam, has shown some potential for further investigation as an antineoplastic agent. A mechanistic study using an in vitro assay and molecular docking analysis indicated that (+)-strebloside binds and inhibits Na⁺/K⁺-ATPase in a similar manner to digitoxin. Inhibition of growth of different high-grad ...
DOI:
10.1021/acs.jnatprod.6b01150
PubMed:
28234008
PubMed Central:
PMC5768141

15. (+)-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

16. (-)-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

17. (-)-Epigallocatechin-3-gallate stimulates myogenic differentiation through TAZ activation

Author:
A Rum Kim; Kyung Min Kim; Mi Ran Byun; Jun-Ha Hwang; Jung Il Park; Ho Taek Oh; Mi Gyeong Jeong; Eun Sook Hwang; Jeong-Ho Hong
Source:
Biochemical and biophysical research communications 2017 v.486 pp. 378-384
ISSN:
0006-291X
Subject:
cytosol; dephosphorylation; genetic markers; green tea; muscle development; muscles; myosin heavy chains; transcription (genetics)
Abstract:
... Muscle loss is a typical process of aging. Green tea consumption is known to slow down the progress of aging. Their underlying mechanisms, however, remain largely unknown. In this study, we investigated the effect of (-)-epigallocatechin-3-gallate (EGCG), a polyphenolic compound of green tea, on myogenic differentiation and found that EGCG significantly increases myogenic differentiation. After EG ...
DOI:
10.1016/j.bbrc.2017.03.049

18. (0D/3D) MoS2 on porous graphene as catalysts for enhanced electrochemical hydrogen evolution

Author:
Yizhe Liu; Yuanzhi Zhu; Xiaobin Fan; Shaobin Wang; Yang Li; Fengbao Zhang; Guoliang Zhang; Wenchao Peng
Source:
Carbon 2017 v.121 pp. 163-169
ISSN:
0008-6223
Subject:
active sites; carbon dioxide; catalysts; composite materials; electrochemistry; graphene; graphene oxide; hydrogen production; nanoflowers; surface area
Abstract:
... A new composite material consisting of 0D MoS2 nanodots and 3D MoS2 nano-flowers grown on porous reduced graphene oxide (P-rGO) was synthesized via a two-step process. The P-rGO with a surface area of 759 m2 g−1 was obtained by CO2 activation of reduced graphene oxide (rGO) at 800 °C. MoS2 was then grown on the P-rGO under hydrothermal conditions. Compared to the nonactivated rGO, P-rGO has functi ...
DOI:
10.1016/j.carbon.2017.05.092

19. (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

20. (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

21. (2+1)-Cycloaddition Reactions Give Further Evidence of the Nitrenium-like Character of 1-Aza-2-azoniaallene Salts

Author:
Al-Bataineh Nezar; Houk K. N.; Brewer Matthias; Hong Xin
Source:
Journal of organic chemistry 2017 v.82 no.7 pp. 4001-4005
ISSN:
1520-6904
Subject:
alkenes; chemical reactions; chemical structure; organic chemistry; salts
Abstract:
... Cationic 1-aza-2-azoniaallene salts react with structurally constrained alkenes in intramolecular reactions by C–H insertion at the allylic position, or by (2+1)-cycloaddition with the alkene followed by ring opening. The latter reaction gives further evidence of the nitrenium-like character of 1-aza-2-azoniaallene salts. DFT calculations show that alkene addition is intrinsically more favorable, ...
DOI:
10.1021/acs.joc.7b00407

22. (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

23. (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

24. (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

25. (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

26. (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

27. (4-Methoxy)-phenoxy pentafluorocyclotriphosphazene as a novel flame retardant and overcharge protection additive for lithium-ion batteries

Author:
T. Huang; X. Z. Zheng; G. F. Fang; Y. Pan; W. G. Wang; M. X. Wu
Source:
RSC advances 2017 v.7 no.75 pp. 47775-47780
ISSN:
2046-2069
Subject:
electric potential difference; electrochemistry; electrodes; electrolytes; flame retardants; flammability; lithium batteries
Abstract:
... We evaluate (4-methoxy)-phenoxy pentafluorocyclotriphosphazene (4-MPPFPP) as a novel flame retardant and overcharge protection additive for lithium-ion batteries. The flammability of electrolytes containing 4-MPPFPP was studied by measuring the self-extinguishing time of the electrolytes. We found that 4-MPPFPP suppresses the flammability of the electrolyte. Moreover, 4-MPPFPP can be electrochemic ...
DOI:
10.1039/c7ra09416g

28. (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

29. (Anti)-boundary work in global environmental change research and assessment

Author:
Kari De Pryck; Krystel Wanneau
Source:
Environmental science & policy 2017 v.77 pp. 203-210
ISSN:
1462-9011
Subject:
climate change; politics; society
Abstract:
... In the 1990s, a discourse emerged within global environmental change research underlining the need to go beyond previously held boundaries between science and society. While not entirely new, this discourse has however reached the highest levels of scientific cooperation embodied among others in the Future Earth (FE) platform and the Intergovernmental Panel on Climate Change (IPCC). Using the conc ...
DOI:
10.1016/j.envsci.2017.03.012

30. (Climate) Change in young people's minds – From categories towards interconnections between the anthroposphere and natural sphere

Author:
Annemarie Körfgen; Lars Keller; Alina Kuthe; Anna Oberrauch; Hans Stötter
Source:
Science of the total environment 2017 v.580 pp. 178-187
ISSN:
0048-9697
Subject:
climate; climate change; education programs; learning; society; students
Abstract:
... The grand challenges of the 21st century will increasingly require societies to reconsider the pathways taken thus far. Engagement with climate change is of ever-growing importance to young people. They will be confronted with the effects of climate change throughout their entire lives and, as future decision-makers, they will vitally shape societal developments. Education will thus play a crucial ...
DOI:
10.1016/j.scitotenv.2016.11.127

31. (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

32. (Diacetoxy)iodobenzene-Mediated Oxidative C–H Amination of Imidazopyridines at Ambient Temperature

Author:
Mondal Susmita; Samanta Sadhanendu; Jana Sourav; Hajra Alakananda
Source:
Journal of organic chemistry 2017 v.82 no.8 pp. 4504-4510
ISSN:
1520-6904
Subject:
ambient temperature; amination; chemical structure; indolizines; organic chemistry; regioselectivity
Abstract:
... (Diacetoxy)iodobenzene (PIDA)-mediated direct oxidative C–H amination for the synthesis of 3-amino substituted imidazopyridines has been achieved under metal-free conditions at room temperature in short reaction times. This methodology is also applicable for the regioselective amination of indolizines. Experimental results suggest that the reaction likely proceeds through a radical pathway. ...
DOI:
10.1021/acs.joc.7b00564

33. (Dicyclohexyl(2-(dimesitylboryl)phenyl)phosphine: en route to stable frustrated Lewis pairs-hydrogen adducts in water

Author:
Kristina Sorochkina; Konstantin Chernichenko; Martin Nieger; Markku Leskelä; Timo Repo
Source:
Zeitschrift für Naturforschung 2017 v.72 no.11 pp. 903-908
ISSN:
1865-7117
Subject:
acetonitrile; heterolytic cleavage; hydrogen; methanol; nuclear magnetic resonance spectroscopy; phosphine; solvents; stable isotopes; synthesis; temperature; thermodynamics
Abstract:
... The new ansa-phosphinoborane (dicyclohexyl(2-(dimesitylboryl)phenyl)phosphine was synthesized via an one-pot protocol in 67% yield. The compound has been characterized by ¹H, ¹³C, ¹¹B and ³¹P NMR, and its solid-state structure determined by a single crystal X-ray diffraction analysis. The ansa-phosphinoborane does not react with molecular hydrogen or water at room or elevated temperature. Accordin ...
DOI:
10.1515/znb-2017-0133

34. (Dicyclopentadiene) platinum(II) dichloride: an efficient catalyst for the hydrosilylation reaction between alkenes and triethoxysilane

Author:
Huarui Wu; Chaoyue Zheng; Naiwu Chen; Jie Zhu; Deqing Gao
Source:
Tetrahedron letters 2017 pp. -
ISSN:
0040-4039
Subject:
alkenes; biphenyl; catalysts; chemical reactions; isomers; platinum
Abstract:
... (Dicyclopentadiene) platinum(II) dichloride was found to be an efficient hydrosilylation catalyst (homogeneous) upon a wide variety of functionalized alkenes and alkenes terminated with chemical moieties (diphenyl amino-, N-carbazol- and N-isoindoline-1,3-dione-). It is noteworthy that the hydrosilylation of aminated alkenes with triethoxysilane exhibited the yield of over 70% and the selectivity ...
DOI:
10.1016/j.tetlet.2017.03.017

35. (Diisopropylammonium)₂MnBr₄: a multifunctional ferroelectric with efficient green-emission and excellent gas sensing properties

Author:
Chunli Jiang; Ni Zhong; Chunhua Luo; Hechun Lin; Yuanyuan Zhang; Hui Peng; Chun-Gang Duan
Source:
Chemical communications 2017 v.53 no.44 pp. 5954-5957
ISSN:
1364-548X
Subject:
chemical reactions; green light; optical properties; temperature; vapors
Abstract:
... Combination of excellent optical properties and ferroelectricity of hybrid materials leads to high-performance optoelectronic devices. Here we present a new organic–inorganic hybrid compound (diisopropylammonium)₂MnBr₄ (DIPA₂MnBr₄) which shows high temperature ferroelectricity accompanied by highly efficient green-light emission. DIPA₂MnBr₄ also exhibits sensitive and selective optical response to ...
DOI:
10.1039/c7cc01107e

36. (Dis)Trust, Control, and Project Success: From a Chinese Project Owner’s Perspective

Author:
Weiping Jiang; Xianbo Zhao; Jian Zuo
Source:
Sustainability 2017 v.9 no.11 pp. -
ISSN:
2071-1050
Subject:
construction industry; contractors; corporate social responsibility
Abstract:
... This research aims to investigate the relationship between interorganizational trust and control and their effects on the project success from the perspective of project owners. Based on relevant literature and the actual situation in the Chinese construction industry, trust was classified as calculative trust and relational trust, and control was classified as outcome control, behavior control, a ...
DOI:
10.3390/su9111936

37. (E)- and (Z)-Stereodefined Enol Sulfate Esters Derived from α-Aryl Aldehydes: Stereocomplementary Synthesis of Styryl Sulfate Natural Products

Author:
Yu Shuai; Li Feng; Kim Sanghee
Source:
Journal of organic chemistry 2017 v.82 no.13 pp. 6992-6999
ISSN:
1520-6904
Subject:
aldehydes; chemical reactions; enols; esters; moieties; organic chemistry; stereoselectivity; sulfates; trapping
Abstract:
... A method for the stereoselective formation of enol sulfate esters from α-aryl aldehydes is described. This method involved the stereocontrolled enolization of a carbonyl group with DBU or t-BuOK followed by trapping with a reactive sulfuryl imidazolium salt, providing the corresponding styryl enol sulfate esters in good to excellent yields and stereoselectivities. This method was applied to the fi ...
DOI:
10.1021/acs.joc.7b00868

38. (Electro)chemical expansion during cycling: monitoring the pressure changes in operating solid-state lithium batteries

Author:
Wenbo Zhang; Daniel Schröder; Tobias Arlt; Ingo Manke; Raimund Koerver; Ricardo Pinedo; Dominik A. Weber; Joachim Sann; Wolfgang G. Zeier; Jürgen Janek
Source:
Journal of materials chemistry A 2017 v.5 no.20 pp. 9929-9936
ISSN:
2050-7496
Subject:
anodes; cathodes; computed tomography; cracking; electrochemistry; electrolytes; energy; liquids; lithium batteries; mechanical stress; monitoring
Abstract:
... Solid-state lithium-ion batteries (SSBs) are a promising concept for future energy storage applications. Interestingly, the mechanical effects during operation of SSBs, and their correlation to the electrochemical performance, have rarely been investigated. In such systems, the rigid mechanical coupling between the active phases and the solid electrolyte will lead to more complex non-local strain ...
DOI:
10.1039/c7ta02730c

39. (Epi)genetic Inheritance in Schistosoma mansoni: A Systems Approach

Author:
Céline Cosseau; Olaf Wolkenhauer; Gilda Padalino; Kathrin K. Geyer; Karl F. Hoffmann; Christoph Grunau
Source:
Trends in parasitology 2017 v.33 no.4 pp. 285-294
ISSN:
1471-4922
Subject:
Schistosoma mansoni; biological properties and phenomena; blood flukes; epigenetics; genome; humans; inheritance (genetics); phenotype; phenotypic variation
Abstract:
... The G×E concept, in which genotype × environment interactions bring about the phenotype, is widely used to describe biological phenomena. We propose to extend the initial notion of the concept, replacing G by ‘inheritance system’. This system, comprised of both genome and epigenome components, collectively interacts with the environment to shape the development of a phenotype. In the case of the h ...
DOI:
10.1016/j.pt.2016.12.002
PubMed:
28040375
PubMed Central:
PMC6125318

40. (Machine-)Learning to analyze in vivo microscopy: Support vector machines

Author:
Michael F.Z. Wang; Rodrigo Fernandez-Gonzalez
Source:
Biochimica et biophysica acta 2017 v.1865 no.11 pp. 1719-1727
ISSN:
1570-9639
Subject:
Drosophila; animals; gene expression; information storage; learning; microscopy; monitoring; proteins; proteomics; support vector machines; yeasts
Abstract:
... The development of new microscopy techniques for super-resolved, long-term monitoring of cellular and subcellular dynamics in living organisms is revealing new fundamental aspects of tissue development and repair. However, new microscopy approaches present several challenges. In addition to unprecedented requirements for data storage, the analysis of high resolution, time-lapse images is too compl ...
DOI:
10.1016/j.bbapap.2017.09.013

41. (Methylthio)phenol semiochemicals are exploited by deceptive orchids as sexual attractants for Campylothynnus thynnine wasps

Author:
Björn Bohman; Ryan D. Phillips; Gavin R. Flematti; Rod Peakall
Source:
Fitoterapia 2017 pp. -
ISSN:
0367-326X
Subject:
Caladenia; aromatic compounds; attractants; bacteria; benzaldehyde; bioassays; chemical analysis; copulation; flowers; males; medicinal plants; pollination; pollinators; semiochemicals; wasps
Abstract:
... Until recently, (methylthio)phenols as natural products had only been reported from bacteria. Now, four representatives of this class of sulfurous aromatic compounds have been discovered as semiochemicals in the orchid Caladenia crebra, which secures pollination by sexual deception. In this case, field bioassays confirmed that a 10:1 blend of 2-(methylthio)benzene-1,4-diol (1) and 4-hydroxy-3-(met ...
DOI:
10.1016/j.fitote.2017.09.022

42. (Neuro)degenerated Mitochondria-ER contacts

Author:
Agnese De Mario; Rubén Quintana-Cabrera; Denis Martinvalet; Marta Giacomello
Source:
Biochemical and biophysical research communications 2017 v.483 pp. 1096-1109
ISSN:
0006-291X
Subject:
neoplasms; neurodegenerative diseases; neurons; reticulum; stress response
Abstract:
... In the last years, a considerable amount of experimental evidence has highlighted the association between neurodegenerative disorders (NDD) and the biology of mitochondria-Endoplasmic Reticulum contacts (MERCs). In this review, we summarize the most recent findings on this topic. We underline that dysregulation of MERCs can contribute to the neurodegenerative process either by altering directly th ...
DOI:
10.1016/j.bbrc.2016.07.056

43. (Non-) robustness of vulnerability assessments to climate change: An application to New Zealand

Author:
Mario Andres Fernandez; Santiago Bucaram; Willington Renteria
Source:
Journal of environmental management 2017 pp. -
ISSN:
0301-4797
Subject:
case studies; climate; climate change; environmental policy; risk; risk assessment; uncertainty; New Zealand
Abstract:
... Assessments of vulnerability to climate change are a key element to inform climate policy and research. Assessments based on the aggregation of indicators have a strong appeal for their simplicity but are at risk of over-simplification and uncertainty. This paper explores the non-robustness of indicators-based assessments to changes in assumptions on the degree of substitution or compensation betw ...
DOI:
10.1016/j.jenvman.2017.07.054

44. (Oligo-)Thiophene Functionalized Tetraazaperopyrenes: Donor–Acceptor Dyes and Ambipolar Organic Semiconductors

Author:
Hahn Lena; Hermannsdorfer André; Günther Benjamin; Wesp Tobias; Bühler Bastian; Zschieschang Ute; Wadepohl Hubert; Klauk Hagen; Gade Lutz H.
Source:
Journal of organic chemistry 2017 v.82 no.23 pp. 12492-12502
ISSN:
1520-6904
Subject:
X-ray diffraction; chemical reactions; chemical structure; dyes; electrochemistry; fluorescence emission spectroscopy; organic chemistry; terthiophenes; thiophene; transistors; ultraviolet-visible spectroscopy
Abstract:
... Tetraazaperopyrenes (TAPPs) have been functionalized with thiophene and terthiophene units of different architecture resulting in a variety of organic donor–acceptor (D–A) compounds. The influence of the connection of the thiophenes to the TAPP core on their structural, photophysical and electrochemical properties has been studied in detail by a combination of X-ray crystallography, UV–vis and flu ...
DOI:
10.1021/acs.joc.7b02286

45. (Poly)phenol metabolites from Arbutus unedo leaves protect yeast from oxidative injury by activation of antioxidant and protein clearance pathways

Author:
Carolina Jardim; Diana Macedo; Inês Figueira; Gary Dobson; Gordon J. McDougall; Derek Stewart; Ricardo B. Ferreira; Regina Menezes; Cláudia N. Santos
Source:
Journal of functional foods 2017 v.32 pp. 333-346
ISSN:
1756-4646
Subject:
Arbutus unedo; Corema album; digestion; functional foods; homeostasis; human health; hydrogen peroxide; in vitro digestion; leaves; metabolites; mitochondria; oxidative stress; yeasts
Abstract:
... Oxidative stress is a key process in several diseases and a growing body of preclinical/clinical evidence has pushed forward the health benefits of (poly)phenols. The protective potential of Corema album and Arbutus unedo (Poly)phenol Digested Metabolites (PDM), generated after in vitro digestion was evaluated. Chemical alterations caused by the digestion led to alterations of compounds reactivity ...
DOI:
10.1016/j.jff.2017.03.010

46. (Propargylsulfanyl)-2-aza-1,3,5-trienes as a direct source for novel family of highly functionalized 4,5-dihydro-1,3-thiazoles

Author:
Nina A. Nedolya; Ol'ga A. Tarasova; Alexander I. Albanov; Lyudmila V. Klyba; Boris A. Trofimov
Source:
Tetrahedron 2017 pp. -
ISSN:
0040-4020
Subject:
chemical reactions; chemical structure; dimethyl sulfoxide; isothiocyanates
Abstract:
... A novel, simple approach to 2-(1-alkoxyprop-1-enyl)-5-ethenylidene-4,5-dihydro-1,3-thiazoles has been disclosed through the reaction of (propargylsulfanyl)-2-aza-1,3,5-trienes (readily available from alkoxyallenes, isothiocyanates, and propargyl bromide) with potassium or sodium tert-butoxide (1.1–1.4 equiv) under mild conditions [DMSO/THF (∼1:4–5), ca. −30 °C, 15–30 min]. The process proceeds thr ...
DOI:
10.1016/j.tet.2016.12.064

47. (Q)SAR tools for priority setting: A case study with printed paper and board food contact material substances

Author:
Melissa Van Bossuyt; Els Van Hoeck; Giuseppa Raitano; Serena Manganelli; Els Braeken; Gamze Ates; Tamara Vanhaecke; Sabine Van Miert; Emilio Benfenati; Birgit Mertens; Vera Rogiers
Source:
Food and chemical toxicology 2017 v.102 pp. 109-119
ISSN:
0278-6915
Subject:
Ames test; azo compounds; case studies; cosmetics; drugs; models; mutagenicity; paperboard; prediction; prioritization; screening; structure-activity relationships
Abstract:
... Over the last years, more stringent safety requirements for an increasing number of chemicals across many regulatory fields (e.g. industrial chemicals, pharmaceuticals, food, cosmetics, …) have triggered the need for an efficient screening strategy to prioritize the substances of highest concern. In this context, alternative methods such as in silico (i.e. computational) techniques gain more and m ...
DOI:
10.1016/j.fct.2017.02.002

48. (Q)SARs to predict environmental toxicities: current status and future needs

Author:
Mark T. D. Cronin
Source:
Environmental science 2017 v.19 no.3 pp. 213-220
ISSN:
2050-7895
Subject:
acute toxicity; adverse outcome pathways; chronic toxicity; data collection; ecotoxicology; mechanism of action; structure-activity relationships
Abstract:
... The current state of the art of (Quantitative) Structure–Activity Relationships ((Q)SARs) to predict environmental toxicity is assessed along with recommendations to develop these models further. The acute toxicity of compounds acting by the non-polar narcotic mechanism of action can be well predicted, however other approaches, including read-across, may be required for compounds acting by specifi ...
DOI:
10.1039/c6em00687f

49. (R,R)-Butane-2,3-diol Dehydrogenase from Bacillus clausii DSM 8716T: Cloning and Expression of the bdhA-Gene, and Initial Characterization of Enzyme

Author:
Lukas Muschallik; Denise Molinnus; Johannes Bongaerts; Martina Pohl; Torsten Wagner; Michael J. Schöning; Petra Siegert; Thorsten Selmer
Source:
Journal of biotechnology 2017 pp. -
ISSN:
0168-1656
Subject:
Bacillus clausii; Escherichia coli; acetoin; biocatalysis; enzymes; genes; glycols; oxidation
Abstract:
... The gene encoding a putative (R,R)-butane-2,3-diol dehydrogenase (bdhA) from Bacillus clausii DSM 8716T was isolated, sequenced and expressed in Escherichia coli. The amino acid sequence of the encoded protein is only distantly related to previously studied enzymes (identity 33-43%) and exhibited some uncharted peculiarities. An N-terminally StrepII-tagged enzyme variant was purified and initially ...
DOI:
10.1016/j.jbiotec.2017.07.020

50. (Un)fair Delegation: Exploring the Strategic Use of Equity Rules in International Climate Negotiations

Author:
Andreas Lange; Claudia Schwirplies
Source:
Environmental and resource economics 2017 v.67 no.3 pp. 505-533
ISSN:
0924-6460
Subject:
climate; models; surveys; China; Germany; United States
Abstract:
... We provide a new approach for identifying a strategic use of equity arguments in international (climate) negotiations. We first develop a theoretical model of strategic delegation which accounts for both environmental as well as equity preferences. We show that the strategic use of equity arguments qualitatively depends on the extent to which environmental preferences can be misrepresented: repres ...
DOI:
10.1007/s10640-017-0140-9