Variation and fractionation of δH, δO, and δO stable isotopes from irrigation water to soil, grapes, and wine for the traceability of geographical origins.

To investigate the variation and fractionation of stable isotopes from irrigation water to soil, grapes, and wine, δH, δO, and δO in different samples from 10 regions in China were determined using a water isotope analyser. The values were significantly different among regions according to the chemometric analysis. All isotopes were significantly and positively correlated with irrigation water-soil and grape-wine.

Integrative Transcriptomic and Metabolic Analyses Reveal That Flavonoid Biosynthesis Is the Key Pathway Regulating Pigment Deposition in Naturally Brown Cotton Fibers.

Brown cotton is a major cultivar of naturally colored cotton, and brown cotton fibers (BCFs) are widely utilized as raw materials for textile industry production due to their advantages of being green and dyeing-pollution-free. However, the mechanisms underlying the pigmentation in fibers are still poorly understood, which significantly limits their extensive applications in related fields. In this study, we conducted a multidimensional comparative analysis of the transcriptomes and metabolomes between brown and white fibers at different developmental periods to identify the key genes and pathways regulating the pigment deposition.

Preliminary characterization of chemical and sensory attributes for grapes and wines of different cultivars from the Weibei Plateau region in China.

Chemical and sensory attributes play a vital role in evaluating the quality of grapes and wines. This study compared basic physicochemical parameters, organic acids, phenolic compounds, and aroma profiles of grapes and wines of six cultivars using chemometrics. The results showed that the reducing sugar contents of Beibinghong, Gongniang, and Granoir grapes were significantly higher than those of others cultivars, whereas their juice yields were significantly lower.

Effects of geographical origin, vintage, and soil on stable isotopes and mineral elements in Ecolly grape berries for traceability.

Stable isotopes and multi-element profiles of grapes and corresponding soils from different origins and vintages were determined by IRMS and ICP-MS, respectively. Stable isotope ratios and multi-element contents show significant differences among distinct regions and vintages. Grapes and soils were separated using δH and δO according to regions and vintages.

From Soil to Grape and Wine: Geographical Variations in Elemental Profiles in Different Chinese Regions.

Elemental profiles are frequently applied to identify the geographical origin and authenticity of food products, to guarantee quality. The concentrations of fifteen major, minor, and trace elements (Na, Mg, K, Ca, Al, Fe, Mn, Cu, Zn, Rb, Sr, Li, Cd, Cs, and Ba) were determined in soils, "Meili" grapes, and wines from six regions in China by inductively coupled plasma mass spectrometry (ICP-MS). The elemental concentrations in these samples, according to the geographical origins, were analyzed by one-way analysis of variance (ANOVA) with Duncan's multiple comparisons.

Cyanide-Bridged Polynuclear and One-Dimensional FeIII-MnIII/II Bimetallic Complexes Based-on Pentacyanoferrite(III) Building Block: Synthesis, Crystal Structures, and Magnetic Properties.

In this contribution, based-on the structurally confirmed pentacyanometallate (PPh4)2[Fe(CN)5(imidazole)]·(imidazole)·H2O (1) and the manganese compounds [Mn(L)(H2O)2]ClO4 (L = N,N-ethylenebis(3-methoxysalicylideneiminate) or [Mn(MAC)(H2O)Cl]ClO4 (MAC = 2,13-dimethyl-3,6,9,12,18-pentaazabicyclo-[12.3.1]octadeca-1(18),2,12,14,16-pentaene), two new cyanide-bridged bimetallic FeIII-MnIII/II complexes [Mn(L)(H2O)]3[Fe(CN)5(imidazole)](ClO4) (2) and [Mn(MAC)][Fe(CN)5(imidazole)]·CH3OHn (3) were successfully synthesized and characterized by elemental analysis, IR spectroscopy and X-ray structure determination.

A rare octacoordinated mononuclear iron(III) spin-crossover compound: synthesis, crystal structure and magnetic properties.

The chemistry of transition-metal complexes with unusually high coordination numbers has been of interest because of their application in catalytic and biological systems. Deprotonation of the ionogenic tetradentate ligand 6,6'-bis(1H-tetrazol-5-yl)-2,2'-bipyridine [Hbipy(ttr)] in the presence of iron(III) and tetra-n-butylammonium bromide, [n-BuN]Br, in solution resulted in the synthesis of a rare octacoordinated anionic mononuclear complex, tetra-n-butylammonium bis[6,6'-bis(tetrazol-1-id-5-yl)-2,2'-bipyridine]iron(III) methanol hemisolvate dihydrate, (CHN)[Fe(CHN)]·0.5CHOH·2HO or [n-BuN][Fe{bipy(ttr)}]·0.

Tuning of crystallization method and ligand conformation to give a mononuclear compound or two-dimensional SCO coordination polymer based on a new semi-rigid V-shaped bis-pyridyl bis-amide ligand.

With the new semi-rigid V-shaped bidentate pyridyl amide compound 5-methyl-N,N'-bis(pyridin-4-yl)benzene-1,3-dicarboxamide (L) as an auxiliary ligand and the Fe ion as the metal centre, one mononuclear complex, bis(methanol-κO)bis[5-methyl-N,N'-bis(pyridin-4-yl)benzene-1,3-dicarboxamide-κN]bis(thiocyanato-κN)iron(II), [Fe(SCN)(CHNO)(CHOH)] (1), and one two-dimensional coordination polymer, catena-poly[[[bis(thiocyanato-κN)iron(II)]-bis[μ-5-methyl-N,N'-bis(pyridin-4-yl)benzene-1,3-dicarboxamide-κN:N']] methanol disolvate dihydrate], {[Fe(SCN)(CHNO)]·2CHOH·2HO} (2), were prepared by slow evaporation and H-tube diffusion methods, respectively, indicating the effect of the method of crystallization on the structure type of the target product. Both complexes have been structurally characterized by elemental analysis, IR spectroscopy and single-crystal X-ray crystallography. The single-crystal X-ray diffraction analysis shows that L functions as a monodentate ligand in mononuclear 1, while it coordinates in a bidentate manner to two independent Fe(SCN) units in complex 2, with a different conformation from that in 1 and the ligands point in two almost orthogonal directions, therefore leading to a two-dimensional grid-like network.

Simultaneous Quantitative Analysis of Q-Marker with One Single Reference in Glycyrrhiza uralensis Fisch.

In traditional Chinese medicine (TCM) studies, it is difficult to choose evaluation markers for the strict quality control of herbs. A high performance liquid chromatography coupled with metabolomics for simultaneous quantitative analysis of quality markers (Q-markers) in Glycyrrhiza uralensis Fisch was established, which could not only ensure the quality and batch-to-batch consistency of TCMs, but also achieve a quantitative analysis of multi-components by the single reference standard. Based on the construction of chromatographic profiles by high performance liquid chromatography (HPLC) and HPLC-Q-Exactive/MS methods, different multivariate analyses were employed.

Multi-Scale DenseNets-Based Aircraft Detection from Remote Sensing Images.

Deep learning-based aircraft detection methods have been increasingly implemented in recent years. However, due to the multi-resolution imaging modes, aircrafts in different images show very wide diversity on size, view and other visual features, which brings great challenges to detection. Although standard deep convolution neural networks (DCNN) can extract rich semantic features, they destroy the bottom-level location information.

A thermal- and light-induced switchable one-dimensional rare loop-like spin crossover coordination polymer.

Rare loop-like isostructural one-dimensional coordination polymer (1D-CP) systems formulated as {Fe(DPIP)(NCSe)}·4DMF (1) and {Fe(DPIP)(NCSe)}·4DMF (2) were obtained by self-assembling Fe and pseudohalide NCX(X = S, Se) ions in presence of the V-shaped bidentate bridging ligand, namely, N,N'-dipyridin-4-ylisophthalamide (DPIP), and were characterized by elemental analysis, IR spectroscopy, TGA, single crystal X-ray diffraction and powder X-ray diffraction. The magnetic studies show that complex 2 undergoes a complete thermally induced spin crossover (SCO) behavior centered at T = 120 K with ca. 5 K thermal hysteresis loop and light-induced excited spin state trapping effect (LIESST) with T = 65 K.

A cyanide-bridged Fe-Mn heterobimetallic one-dimensional coordination polymer: synthesis, crystal structure, experimental and theoretical magnetism investigation.

A new cyanide-bridged Fe-Mn heterobimetallic coordination polymer (CP), namely catena-poly[[[N,N'-(1,2-phenylene)bis(pyridine-2-carboxamidato)-κN,N',N'',N''']iron(III)]-μ-cyanido-κC:N-[bis(4,4'-bipyridine-κN)bis(methanol-κO)manganese(II)]-μ-cyanido-κN:C], {[FeMn(CHNO)(CN)(CHN)(CHOH)]ClO}, (1), was prepared by the self-assembly of the trans-dicyanidoiron(III)-containing building block [Fe(bpb)(CN)] [bpb = N,N'-(1,2-phenylene)bis(pyridine-2-carboxamidate)], [Mn(ClO)]·6HO and 4,4'-bipyridine, and was structurally characterized by elemental analysis, IR spectroscopy, single-crystal X-ray crystallography and powder X-ray diffraction (PXRD). Single-crystal X-ray diffraction analysis shows that CP 1 possesses a cationic linear chain structure consisting of alternating cyanide-bridged Fe-Mn units, with free perchlorate as the charge-balancing anion, which can be further extended into a two-dimensional supramolecular sheet structure via inter-chain π-π interactions between the 4,4'-bipyridine ligands. Within the chain, each Mn ion is six-coordinated by an N unit and is involved in a slightly distorted octahedral coordination geometry.

Various Structural Types of Cyanide-Bridged Fe-Mn Bimetallic Coordination Polymers (CPs) and Polynuclear Clusters Based-on A New Tricyanoiron(III)Building Block: Synthesis, Crystal Structures, and Magnetic Properties.

Four cyanide-bridged Fe-Mn complexes {[Fe(qxcq)(CN)][Mn(L)(HO)]}[Mn(L)(HO)(CHOH)](ClO)·1.5MeOH·0.5HO (L = (3-methoxy-5-bromosalicylideneiminate) (2), {[Fe(qxcq)(CN)][Mn(L)]}·0.

A new three-dimensional cobalt(II) coordination polymer based on V-shaped 3,4'-oxydibenzoate: synthesis, crystal structure and magnetic properties.

A new coordination polymer (CP), namely poly[(μ-4,4'-bipyridine)(μ-3,4'-oxydibenzoato)cobalt(II)], [Co(CHO)(CHN)] or [Co(3,4'-obb)(4,4'-bipy)] (1), was prepared by the self-assembly of Co(NO)·6HO with the rarely used 3,4'-oxydibenzoic acid (3,4'-obbH) ligand and 4,4'-bipyridine (4,4'-bipy) under solvothermal conditions, and has been structurally characterized by elemental analysis, IR spectroscopy, single-crystal X-ray crystallography and powder X-ray diffraction (PXRD). Single-crystal X-ray diffraction reveals that each Co ion is six-coordinated by four O atoms from three 3,4'-obb ligands, of which two function as monodentate ligands and the other as a bidentate ligand, and by two N atoms from bridging 4,4'-bipy ligands, thereby forming a distorted octahedral CoNO coordination geometry. Adjacent crystallographically equivalent Co ions are bridged by the O atoms of 3,4'-obb ligands, affording an eight-membered CoOC ring which is further extended into a two-dimensional [Co(3,4'-obb)] sheet along the ab plane via 3,4'-obb functioning as a bidentate bridging ligand.

Three Chiral Cyanide-Bridged Cr-Cu Complexes: Synthesis, Crystal Structures and Magnetic Properties.

Two trans-dicyanidochromium(III)-containing building blocks and one chiral copper(II) compound have been employed to assemble cyanide-bridged heterometallic complexes, resulting in three chiral cyanide-bridged Cr(III)-Cu(II) complexes, [Cu(L1)2Cr(L3)(CN)2]ClO42 · CH3OH · H2O (1a, L1 = (S,S)-1,2-diaminocyclohexane, H2L3 =1,2-bis(pyridine- 2-carboxamido)benzene), [Cu(L2)2Cr(L2)(CN)2]ClO42 · CH3OH · H2O (1b, L2 = (R,R)-1,2-diaminocyclohexane) [Cu(L3)2Cr(L4)(CN)2][Cr(L4)(CN)2] · CH3OH · 2H2O (2), (H2L4 = 1,2-bis(pyridine-2-carboxamido)-4-chlorobenzene). All the three complexes have been characterized by elemental analysis, IR spectroscopy and X-ray structure determination. Single-crystal X-ray diffraction analysis shows that the two enantiomeric complexes 1a, 1b and the complex 2 belong to cyanide-bridged cationic binuclear structure type with ClO4 - or the anionic cyanide building block as balance anion for complexes 1a, 1b or 2, respectively.

An unprecedented hetero-bimetallic three-dimensional spin crossover coordination polymer based on the tetrahedral [Hg(SeCN)] building block.

Self-assembly of octahedral FeII ions, trans-1,2-bis(4-pyridyl)ethane (bpe) bridging ligands and [Hg(XCN)4]2- (X = S (1), Se (2)) tetrahedral building blocks has afforded a new type of hetero-bimetallic HgII-FeII spin-crossover (SCO) 3D 6,4-connected coordination polymer (CP) formulated {Fe(bpe)[Hg(XCN)4]}n. For X = S (1), the ligand field is close to the crossing point but 1 remains paramagnetic over all temperatures. In contrast, for X = Se (2) the complex undergoes complete thermal induced SCO behaviour centred at T1/2 = 107.

A Gossypium hirsutum GDSL lipase/hydrolase gene (GhGLIP) appears to be involved in promoting seed growth in Arabidopsis.

GDSL lipase (GLIP) plays a pivotal role in plant cell growth as a multifunctional hydrolytic enzyme. Herein, a cotton (Gossypium hirsutum L. cv Xuzhou 142) GDSL lipase gene (GhGLIP) was obtained from developing ovules and fibers.

Re-emerging of rabies in Shaanxi province, China, from 2009 to 2015.

To explore the epidemiological, phylogeographic, and migration characteristics of human rabies in Shaanxi province, China from 2009 to 2015. The collected data were described and the sequenced glycoprotein (G) and nucleoprotein (N) genes were implemented to estimate the evolutionary rates and phylogeographic patterns using BEAST v.1.