An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
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.
European Union; agricultural land; brownfields; buildings; case studies; cities; climate; climate change; ecosystems; floods; food production; food safety; heat; hydroponics; infrastructure; land use; models; quality of life; soil; urbanization
Abstract:
... The tissue of cities is getting increasingly dense and compact, however, according to the current development models, the demand for living space per person, for industrial and commercial activities, for the transport infrastructure, requires more and more land, often to the detriment of agricultural fields, that surround cities. The occupation of agricultural lands has significant impact on the r ...
Escherichia coli; active sites; carbon nitride; cooling; crystal structure; disinfection; electron transfer; freezing; graphene; heat; humic acids; irradiation; light; microwave treatment; nanosheets; photocatalysis; photolysis; physicochemical properties; surface area; water purification
Abstract:
... Highly-crystalline 2-dimensional (2D) graphitic carbon nitride (g-C₃N₄) nanosheets with low structural imperfection usually possess high photocatalytic activity that benefits from the suppressed electron–hole recombination. However, the conventional exfoliation strategy is incapable for fast and clean preparation of such highly-quality g-C₃N₄ nanosheets from their bulk-type counterparts. Herein, h ...
Amaranthaceae; Turkey (country); botany; diploidy; flora; new species; Northern Africa; Persian Gulf; Sardinia; Sicily
Abstract:
... A new species of Arthrocaulon Piirainen & G. Kadereit, A. meridionalis is described. This diploid taxon is known from the islands of Sicily and Sardinia and from circum-Mediterranean territories (from North Africa to the Anatolian Peninsula in Turkey and as far as the Persian Gulf on the Asian continent). The distinctive macro-, micromorphological and chorological features of this taxon are given. ...
... Geranium biuncinatum Kokwaro was collected during a fieldwork around (Khuzestan province, Shoshtar to Masjed Soleyman) in South West of Iran. It is added as a new record for the flora of Iran. Micromorphological features of mericarps and seeds are investigated by Scanning Electron Microscopy. Differences between Geranium biuncinatum and its relatives are discussed. Its diagnostic characters, geogr ...
business enterprises; consumers (people); foods; income; interviews; markets; poverty; prices; social welfare; surveys; British Columbia
Abstract:
... Alternative food networks are emerging in opposition to industrial food systems, but are criticized as being exclusive, since customers’ ability to patronize these market spaces is premised upon their ability to pay higher prices for what are considered the healthiest, freshest foods. In response, there is growing interest in widening the demographic profile given access to these alternative foods ...
activists; case studies; issues and policy; politics; socioeconomic status
Abstract:
... Based on a Danish case study of urban renewal in Copenhagen’s Sundholm District, this paper examines, (a) how present urban regeneration efforts in a historically welfare-driven, but increasingly neoliberalized state context, is contributing to more or less spatial exclusion of the homeless, and (b) to what extent this may be associated with a revanchist/punitive stance of the Danish state. Using ...
... On the basis of the correspondence between N. I. Vavilov and G. D. Karpechenko in 1924-1926, their working relationship during this period has been analyzed. G. D. Karpechenko had just become head of a newly established genetics laboratory at Vavilov’s institute, and the director tried to help him to understand the tasks and research methodology. As a result, for the years ahead, theoretical justi ...
Citrus; ecophysiology; gardens; households; hydrologic cycle; irrigation; irrigation water; raw fruit; transpiration; trees; urban areas; water shortages; wind
Abstract:
... The idea of garden is expressed, for the first time in history, by the Mesopotamian civilization as early as the IV millennium BCE as drawings and poetry texts showing a wall fencing one single tree. This is the first representation of the idea of sheltering/protecting a tree by human artifacts and, in its simplest form, brings the idea of the tight relationship between horticulture and urban envi ...
... The dendrological garden is of great importance in the general biological and ecological education of the population. In addition to studying and protecting plants, the garden has ample opportunities to realize its achievements in educational and educational activities. One of the forms of education of ecological thinking and worldview is the creation of ecological paths. On the territory of the d ...
forest industries; forestry; males; occupations; researchers; women
Abstract:
... This study adds to the literature on the gendered culture of the forest sector by examining testimonies of sexual harassment in relation to the gendering of forestry-related competence and organisations and the consequences that the sexualisation of social relations in organisations has, mainly for women. The empirical base of the study comprised testimonies within the campaign #slutavverkat publi ...
... 'CARBAP K74' is a triploid plantain-like hybrid developed and selected in partnership between CARBAP and CIRAD. It results from a cross between an improved plantain-like tetraploid (AAAB) parental line and an improved cooking-type diploid (AA). Molecular studies showed that this hybrid is free of any endogenous banana streak virus (eBSV) sequence. An agronomic evaluation was performed over two cro ...
... Internal browning (IB) of 'Fuji' apples (Malus × domestica Borkh.) is an important physiological disorder which occurs during long term controlled atmosphere and regular atmosphere storage. The aim of this study was to use micro- and nano X-ray computed tomography (CT) to establish differences in airspace shape and size (tissue density) and porosity of the fruit with and without IB. The fruit was ...
Malus domestica; apples; canopy; cultivars; grafting (plants); orchards; pruning; regrowth; rootstocks; summer; trees; vigor; wages and remuneration; Brazil
Abstract:
... Different canopy management strategies have been used to reduce vigor and labor costs, including time of pruning and training system. “Fruiting wall” systems lend themselves to mechanical hedging, to control vigor and reduce labor costs. Hedging could eliminate the need for summer pruning. This trial evaluated different hedging times during the summer and different hedging intensities in a Brazili ...
apples; bitter pit; calcium; field experimentation; fruits; genotype; grafting (plants); leaves; magnesium; manganese; nutrient content; rootstocks; scions; sulfur; zinc; United States
Abstract:
... 'Honeycrisp' apples are susceptible to mineral nutrient-related fruit disorders, such as bitter pit. We utilized a well-established apple rootstock field trial in the Champlain Valley, NY, USA with 40 rootstocks (including B.9, M.9 and G.41 as controls) to determine the effects of rootstock genotypes on mineral nutrient concentrations in mature leaves and immature fruit. Positive relationships wer ...
... ‘Jinmei’, a yellow-fleshed kiwifruit cultivar, was selected from the backcross population of interspecific cultivar ‘Jinyan’ (female parents) and Actinidia chinensis (male parent) at the Wuhan Botanical Garden, Chinese Academy of Sciences. The fruit is long and cylindrical with dense short hairs on the fruit surface. The fruit is big, with average weight of 90-120 g and maximum weight of 176 g. Th ...
Diospyros kaki; brix; color; fruit quality; fruits; persimmons; pollination; progeny; proliferating cell nuclear antigen; taste; Korean Peninsula
Abstract:
... 'Jowan' was crossed with 'Shinshu' and 'Taeshu' in 2005. From the progeny we selected '05-17-58' and evaluated some characteristics. The fruit ripens at late September on Youngam area in Korea, it's soluble sugar content is 16.4 °Brix, the fruit weight is 180-200 g, fruit shape is round oblate, and fruit skin color is light orange. Also its fruit quality is very high and has a juicy flesh, crunchy ...
... Macadamia is an Australian native genus, comprising of four species. Commercial cultivars for the production of macadamia nuts are derived from two species, M. tetraphylla and M. integrifolia. The different species of Macadamia have unique leaf and flowering patterns, due to inherent biological rhythms. Usually, M. tetraphylla has four leaves in a whorl, while the other species have three leaves p ...
... Late flowering, to avoid the late frosts, is one of the main objectives of the Almond Breeding Program of CEBAS-CSIC. The late flowering self-compatible ‘Antoñeta’ and ‘Marta’ were released long time ago, and they are nowadays broadly cultivated. Afterwards, we released the extra-late self-compatible ‘Penta’ and the ultra-late self-compatible ‘Tardona’, the latest flowering almond cultivar ever re ...
apricots; cold; cold tolerance; crossing; cultivars; females; fruit juices; fruit peels; fruits; hybrids; males; odors; seeds; soil quality; sourness; sweetness; texture; total soluble solids; China
Abstract:
... 'Meixiang', a new hybrid early-maturing apricot cultivar, was bred through the crossing of a large sweet-kernel apricot cultivar (female parent) with an early-maturing apricot (male parent). The fruit is mostly round, with an average mass of 97 g. The fruit peel of 'Meixiang' apricot is golden yellow, and the sunny side is rosy red. It has thick yellow flesh with delicate texture and less fiber, a ...
... 'Omic' approaches have emerged as valuable technologies to monitoring the biological status of an organism. Among all their applications, the study of plant-pathogen interactions is on the cutting edge of plant research. Regarding to Brassica crops diseases, the causal agent of black rot (Xanthomonas campestris pv. campestris, Xcc) is one of the most devastating soilborne diseases worldwide. Howev ...
... Lactic acid bacteria are fully recognized for their industrial applications among which the production and release of exopolysaccharides. In the present investigation, we screened fifteen Lactobacilli in order to find ropy strains, quantify exopolysaccharides and detect proteins specifically associated with the ropy-exopolysaccharide production. The highest ropy-exopolysaccharide producer (L. helv ...
apricots; cold; cold storage; color; cultivars; fruits; odors; seedlings; seeds; sweetness; taste; total soluble solids; Serbia
Abstract:
... 'Ruža' is a new apricot cultivar released by the Faculty of Agriculture, University of Belgrade. It originated as a spontaneous seedling and was introduced in 2014. Evaluation of this cultivar was done in comparison with the control cultivar 'Hungarian Best' over a 3-year period (2012-2014). It flowers late in the season, about 1 day after the control cultivar. It is self-compatible. The maturing ...
alcohol abuse; alcoholic beverages; ascorbic acid; drinking; industry; marketing; persimmons; traditional medicine; value added; Japan
Abstract:
... 'Sixth Industrialization' activities have arisen in Japan to promote domestic agriculture by integrating primary, secondary, and tertiary industries to achieve greater value added in products and services. Persimmon fruit are known from ancient times as an effective natural medicine to alleviate hangover after excessive drinking of alcoholic beverages. Research in this area has lead to the success ...
autocorrelation; cities; demography; economic structure; environmental indicators; issues and policy; land use; niches; planning; principal component analysis; prototypes; sustainable development; topography; urbanization; Greece
Abstract:
... Metropolitan systems were constituted by spatial components with different specialization 'niches' based on characteristic attributes (demography, economic structure and performances, socio-spatial patterns, urban morphology, topography, land-use and spatial planning). The present study investigates the multiple dimensions of urban complexity in the light of the 'ecological niche' theory, assessin ...
business enterprises; collective action; econometric models; exports; grapes; issues and policy; rural areas; surface area; vineyards; wines; zoning; Spain
Abstract:
... This paper explores the emergence of the terroirist social movement in Spain and the controversies arising from it. We assess its role in transforming the Spanish wine scene and wine regions from the combined perspective of rural and social movement studies. Spain boasts the largest surface area of vineyards and the largest volume of wine exports of any country, yet it also sells the cheapest wine ...
... Fear- and anxiety-related psychiatric disorders have been one of the major chronic diseases afflicting patients for decades, and new compounds for treating such disorders remain to be developed. (+)-Borneol, a bicyclic monoterpene found in several species of Artemisia and Dipterocarpaceae, is widely used for anxiety, pain and anesthesia in Chinese medicine. Meanwhile, it can potentiate GABA (γ-ami ...
... The first total synthesis of (+)-dimericbiscognienyne A is described. Key to the successful access to (+)-dimericbiscognienyne A was a biosynthetically inspired Diels–Alder reaction between two differential epoxyquinoid monomers and the subsequent intramolecular hemiacetal formation. The selective formation of the natural product among other possible diastereomers during the late-stage [4+2] cyclo ...
... While diets rich in fruit and vegetables can decrease the risk for type 2 diabetes (T2D), diets rich in fat and carbohydrates can increase it. The flavanol-3-ol (-)-epicatechin (EC) can improve insulin sensitivity both in humans and animal models of T2D. NADPH oxidases and oxidative stress can contribute to the development of insulin resistance. This study investigated the capacity of EC and EC me ...
... (00l)-facet-exposed planelike ABi₂Nb₂O₉ (A = Ca, Sr, Ba) powders with a single-crystal grain were obtained successfully by the molten salt method. The planelike grains were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, diffuse reflectance spectroscopy, photoluminescence spectroscopy, and X-ray photoelectron spectroscopy. With modification by pl ...
absorption; carbon nitride; energy conversion; gold; hydrogen; nanogold; nanosheets; oxygen production; photocatalysts; photosynthesis; polymerization; solar energy; surface plasmon resonance; transportation
Abstract:
... Development of a simple and stable photocatalyst for overall water splitting is a promising avenue for solar energy conversion. Here, carbon nitride (CN) nanosheet panels decorated with in situ-formed (111) facets-oriented Au nanoparticles (AuNPs) have been prepared by vapor-deposition polymerization followed by an easy immersion technique. Benefiting from the enhanced visible light absorption, th ...
Acanthus ilicifolius; Penicillium; alkaline phosphatase; antagonists; beta catenin; bone formation; bone health; bone morphogenetic proteins; bone resorption; calcium; cyclic AMP; cyclic GMP; dietary supplements; endophytes; enzyme activity; flavones; fungi; gene expression; gene expression regulation; guanosine; health promotion; metabolites; mineralization; osteoblasts; osteoclasts; protein synthesis; signal transduction; transcription factors; vitamin D
Abstract:
... Flavones have the potential of being used as a dietary supplement for bone health promotion beyond calcium and vitamin D. Recent studies have showed that flavones enhanced bone formation and inhibited bone resorption by affecting osteoblast and osteoclast differentiation through various cell signaling pathways. In this study, we investigated the effects of a new flavone (2R,3S)-pinobanksin-3-cinna ...
... A novel (3 + 3) annulation approach has been developed for the synthesis of 2-aryl terephthalates from nitroallylic acetates and stabilized sulfur ylides. The 2-aryl terephthalates, which are also biaryls bearing a terephthalate moiety, are formed through a cascade of reactions such as a γ-selective SN2′ reaction, γ-selective intramolecular Michael addition, and two eliminations in the presence of ...
Lewis acids; cations; chemical structure; chemoselectivity; cycloaddition reactions; diastereoselectivity; ketones
Abstract:
... Oxyallyl cations are prepared in situ from readily available α-tosyloxy ketones and act as transient electrophilic partners in (3 + 3) cycloaddition with nitrones. Under mild conditions, this method provides a chemoselective and diastereoselective route to polysubstituted 1,2-oxazinanes. A stepwise process is proposed to rationalize the diastereoselectivity of this transformation. ...
ambient temperature; chemical structure; cycloaddition reactions; organic chemistry; organic compounds
Abstract:
... A room-temperature (3+2) cycloaddition sequence for the synthesis of highly substituted dihydrothiophene derivatives has been developed. By utilizing structurally unique thiocarbonyl ylides, the reactivity of these traditionally high-energy intermediates can be modulated, enabling a synthetically useful transformation to proceed under mild conditions. ...
Lewis acids; amides; chemical reactions; diastereomers; diastereoselectivity; imines
Abstract:
... The addition of Lewis acids changes the path of the reaction of N-vinylpyrroles with 3,4-dihydroisoquinoline-N-oxides: formal (3 + 3)-cycloaddition proceeds instead of (3 + 2)-cycloaddition. In the case of benzoyl(3,4-dihydroisoquinolin-2-ium-2-yl)amides, reaction path does not change in the same conditions, but changing of the diastereoselectivity occurs and other diastereomer of (3 + 2)-cycloadd ...
... Endocrine-disrupting chemicals are mainly discharged into the environment by wastewater treatment plants (WWTPs) and are known to induce adverse effects in aquatic life. Advanced treatment with ozone successfully removes such organic micropollutants, but an increase of estrogenic effects after the ozonation of hospital wastewater was observed in previous studies. In order to investigate this effec ...
... Novel (B,N)-doped three-dimensional (3D) porous graphene–carbon nanotubes (CNTs) can be used as an excellent alkaline and acid tolerant electrocatalyst for both the oxygen reduction reaction (ORR) and the hydrogen evolution reaction (HER). Based on density functional theory, the H and O atoms’ pre-and post-adsorption energy can effectively reduce the reaction energy barrier. ...
... A series of (Ba,Sr)TiO₃ phosphors singly doped with Eu³⁺ and Dy³⁺ were successfully synthesized using the nitrate pyrolysis method at 750 °C. Eu³⁺ or Dy³⁺ single-doped BaTiO₃ retained the tetragonal crystal structure of the host, while the Sr²⁺-substituted (Ba,Sr)TiO₃:RE³⁺ (RE³⁺ = Eu³⁺ or Dy³⁺) experienced a phase transformation from tetragonal to cubic phase with a unit cell shrinkage. For Eu³⁺ d ...
... 3D printing has revolutionized the concept of object manufacturing, making an enormous impact on industry and economy. The technology has found a niche in countless fields, including scientific research. It has rendered practical solutions to scientific problems by offering tailored-shaped devices with exquisite control in design and geometry and through the versatility of printable materials. App ...
... Prediction studies of advanced (bio)degradable polymeric materials are crucial when their potential applications as compostable products with long shelf-life is considered for today’s market. The aim of this study was to determine the effect of the polylactide (PLA) content in the blends of PLA and poly(butylene adipate-co-terephthalate) (PBAT); specifically how the material’s thickness correspond ...
chemical reactions; chemical structure; organic compounds; reaction mechanisms
Abstract:
... A (CH₃)₂CuLi/Cu(OTf)₂ mediated N- or O-cyclization of urea-tethered cyclobuta[b]indolines has been reported in this paper, giving a new synthetic protocol for the construction of pyrimido[1,6-a]indolone and cyclic imidate derivatives in moderate to good yields with a broad substrate scope under mild conditions. A plausible reaction mechanism has been also proposed on the basis of previous reports ...
... The ability of bentonite and montmorillonite pillared by Al-oxide and mixed (Ln-Al)-oxides (Ln = La, Ce) to remove ²³⁹plutonium solution species from water is comparatively investigated at pH 7 and pH 4. Small-angle scattering and neutron contrast variation with H₂O/D₂O mixtures is used to verify the ingress of water in the calcined products after hydrophilicity was introduced by an NH₃-H₂O vapor ...
... Additives and biomass were co-combusted with sewage sludge (SS) to promote SS incineration treatment and energy generation. (Co-)combustion characteristics of sewage sludge (SS), water hyacinth (WH), and 5% five additives (K2CO3, Na2CO3, Mg2CO3, MgO and Al2O3) were quantified and compared using thermogravimetric-mass spectrometric (TG-MS) and numerical analyses. The combustion performance of SS de ...
chemical compounds; chemical reactions; fluorescence
Abstract:
... The first examples of through-space conjugated thermally activated delayed fluorescence (TADF) emitters based on a [2.2]paracyclophane (PCP) skeleton with stacked (coplanar) donor–acceptor groups have been synthesized. The optoelectronic properties are studied by the relative configuration, cis (pseudo-geminal) and trans (pseudo-para), of the donor and acceptor groups. ...
D.N. Barton; E. Kelemen; J. Dick; B. Martin-Lopez; E. Gómez-Baggethun; S. Jacobs; C.M.A. Hendriks; M. Termansen; M. García- Llorente; E. Primmer; R. Dunford; P.A. Harrison; F. Turkelboom; H. Saarikoski; J. van Dijk; G.M. Rusch; I. Palomo; V.J. Yli-Pelkonen; L. Carvalho; F. Baró; J. Langemeyer; J. Tjalling van der Wal; P. Mederly; J.A. Priess; S. Luque; P. Berry; R. Santos; D. Odee; G. Martines Pastur; G. García Blanco; S-R. Saarela; D. Silaghi; G. Pataki; F. Masi; A. Vădineanu; R. Mukhopadhyay; D.M. Lapola
European Union; case studies; decision making; ecosystem services; governance; research projects; stakeholders; uncertainty
Abstract:
... The operational challenges of integrated ecosystem service (ES) appraisals are determined by study purpose, system complexity and uncertainty, decision-makers’ requirements for reliability and accuracy of methods, and approaches to stakeholder–science interaction in different decision contexts. To explore these factors we defined an information gap hypothesis, based on a theory of cumulative uncer ...
college students; higher education; social networks
Abstract:
... This paper argues for, and reflects on, the introduction of social and mobile media into food studies pedagogies. Specifically, the paper describes the complications resulting from a pedagogical experiment addressing the rise and effects of “food porn” or “foodtography” alongside the tensions inherent in social network sites and higher education. Ultimately, such a review leads to the introduction ...
... Among the main problems faced by soybean producers is the nematode Meloidogyne incognita. Because nematicides that are more efficient and less toxic to humans and the environment than those available are desirable to control this pathogen, this work aimed at studying the essential oil of Cinnamomum cassia, which has been described as active in vitro against the nematode Bursaphelenchus xylophilus. ...
... In tritrophic interactions between cucumber plants, the cucumber moth Diaphania indica Saunders (Lepidoptera: Crambidae) and a larval parasitoid Apanteles taragamae Viereck (Hymenoptera: Braconidae), female A. taragamae may use herbivore-induced plant volatiles (HIPVs) to locate their host. However, the specific compound or blend of chemicals attracting A. taragamae remains unknown. In this study, ...
Giuseppa Raitano; Daniele Goi; Valentina Pieri; Alice Passoni; Michele Mattiussi; Anna Lutman; Isabella Romeo; Alberto Manganaro; Marco Marzo; Nicola Porta; Diego Baderna; Andrea Colombo; Eleonora Aneggi; Fabrizio Natolino; Marco Lodi; Renzo Bagnati; Emilio Benfenati
chemical pollutants; drugs; endocrine-disrupting chemicals; human health; humans; personal care products; pesticides; receptors; risk; risk assessment process; rivers; wastewater; wastewater treatment; watersheds; Italy
Abstract:
... Contaminants giving rise to emerging concern like pharmaceuticals, personal care products, pesticides and Endocrine Disrupting Chemicals (EDCs) have been detected in wastewaters, as reported in the literature, but little is known about their (eco)toxicological effects and consequent human health impact. The present study aimed at overcoming this lack of information through the use of in silico met ...
anisotropy; chemical reactions; ligands; magnetism; momentum; schiff bases; tetraethylammonium compounds
Abstract:
... The first paramagnetic pentagonal-bipyramidal complex of Mo(iii) with a N₃O₂-type Schiff-base ligand was synthesized by the comproportionation reaction between Mo(ii) and Mo(iv) congeners. The complex has a low-spin (S = 1/2) ground state of Moᴵᴵᴵ(4d³) with double orbital degeneracy and unquenched orbital momentum, which result in strong Ising-type magnetic anisotropy. ...
X-ray diffraction; chemical compounds; chemical reactions; moieties; nuclear magnetic resonance spectroscopy
Abstract:
... The novel binary P₄ analogue (Ge₂P₂)²⁻ proved to be a suitable precursor for heteroatomic cluster synthesis. Over time in solution, it rearranges to form (Ge₇P₂)²⁻, as shown by NMR studies and X-ray diffraction. Reactions of (Ge₂P₂)²⁻ with CdPh₂ afford [K(crypt-222)]₃[Cd₃(Ge₃P)₃], containing an unprecedented ternary cluster anion with a triangular Cd₃ moiety. ...
Lewis bases; X-ray diffraction; alkynes; bromides; catalysts; copper; enantiomers; enantioselectivity; guanidinium; ligands; mass spectrometry; organobromine compounds
Abstract:
... Highly enantioselective allylic alkynylation of racemic bromides under biphasic condition is furnished in this report. This approach employs functionalized terminal alkynes as pro-nucleophiles and provides 6- and 7-membered cyclic 1,4-enynes with high yields and excellent enantioselectivities (up to 96% ee) under mild conditions. Enantioretentive derivatizations highlight the synthetic utility of ...
... We resolved the O:H–O bond transition from the mode of ordinary water to its hydration in terms of its phonon stiffness (vibration frequency shift Δω), order of fluctuation (line width), and number fraction (phonon abundance), fₓ(C) = Nₕyd/Nₜₒₜₐₗ. The fₓ(C) follows fH(C) = 0, fLᵢ(C) ∝ fOH(C) ∝ C, and fBᵣ(C) ∝ 1 – exp(−C/C₀) toward saturation with C being the solute concentration. The invariant dfₓ ...
... IRF8 is a master transcription factor for immune cell development. In this issue, Karki et al. reveal that IRF8 governs the constitutive expression of genes encoding for NAIP proteins that are critical for the innate immune sensing of bacteria. ...
... The immobilization of heavy metals (HMs)-contaminated soils using amendments is a cost-effective remediation technique. Therefore, the aim of this study was to evaluate the effectiveness and aging factor of CaO, fly ash (FA), sulfur, and Na₂S on the immobilization of Cd, Cu, and Pb in three different contaminated soils under 1-year incubation. The study sites (S) and amendments treatments (T) are ...
cell growth; life history; membrane proteins; protein synthesis
Abstract:
... Great progress has been made in elucidating the structural and mechanistic basis of (membrane) protein production. Here, we attempt to look ahead and indicate four directions in which our understanding of the protein production process can grow: (i) determine how the molecular mechanisms influence higher-level processes, such as the distribution of protein copy number over a population of cells or ...
... The first ammonium indium borate (NH₄)InB₈O₁₄ was synthesized from indium oxide and boric acid under high-pressure/high-temperature conditions of 9 GPa and 1000°C with a Walker-type multianvil apparatus in a BN crucible. Although a reproduction of this synthesis product failed until now, we were able to determine the crystal structure via single-crystal X-ray diffraction data collected at room tem ...
decision making; ecology; environmental policy; evolution; new species; quantitative analysis
Abstract:
... The species problem, despite decades of heated debates, has not been resolved yet. Recently, two new species concepts have been published, the mitonuclear compatibility species concept and the inclusive species concept. I briefly discuss them, together with a recent attempt at standardizing taxonomic decisions, in the broader framework of what I believe is an inherent limitation of taxonomy—imposi ...
... The development of new methods to denoise images still attract researchers, who seek to combat the noise with the minimal loss of resolution and details, like edges and fine structures. Many algorithms have the goal to remove additive white Gaussian noise (AWGN). However, it is not the only type of noise which interferes in the analysis and interpretation of images. Therefore, it is extremely impo ...
dinner; food choices; foods; menu planning; restaurants; vegetarian diet
Abstract:
... Previous research has shown that restaurant menu design can influence food choices. However, it remains unknown whether such contextual effects on food selection are dependent on people's past behavior. In the present study, we focused on vegetarian food choices, given their important implications for the environment, and investigated whether the influence of different restaurant menus on the like ...
... A pair of undescribed bicoumarin enantiomers, (P)/(M)-corinepalensin A, two undescribed prenylated coumarins, corinepalensins B and C, along with ten known coumarins were isolated from the twigs of Coriaria nepalensis. (P)/(M)-corinepalensin A feature a rare C-5C-5′ axially chiral linkage between two prenylated coumarin monomers. Their structures were determined by a combination of spectroscopic m ...
Amanda A. Ribeiro; Rebeca Padrao Amorim; Zaira J. Palomino; Mércia de Paula Lima; Ivana Cinthya Moraes-Silva; Leandro Ezequiel Souza; Jorge Luiz Pesquero; Maria Claudia Irigoyen; Dulce E. Casarini
... The (pro)renin receptor [(P)RR] has been implicated as a renin/prorenin receptor, and plays a role in local renin angiotensin system activation. Our goal was to investigate whether a transgenic mouse that expresses rat tonin [TGM‘(rTon)] can regulate (P)RR mRNA levels. Control (C) and TGM‘(rTon) animals were subdivided into the C sham, C MI, TGM‘(rTon) sham, and TGM‘(rTon) MI groups. The levels of ...
... An efficient diastereo- and enantioselective route to access a wide range of highly substituted pyrrolidine and pyrrolizidine derivatives has been described via (1,3)- and double (1,3)-dipolar cycloaddition reactions catalyzed by the (R)-DM-SEGPHOS–Ag(I) complex. The reactions proceed smoothly at ambient temperature, affording a variety of pyrrolidines and pyrrolizidines in high yields (up to 93%) ...
... The microbial transformation of 20(R)-panaxadiol (PD) by the fungus Absidia coerulea AS 3.3382 afforded three new and three known metabolites. The structures of the metabolites were characterized as 3-oxo-20(R)-panaxadiol (1), 3-oxo-7β- hydroxyl-20(R)-panaxadiol (2), 3-oxo-22β-hydroxyl-20(R)-panaxadiol (3), 3-oxo- 7β,22β-dihydroxyl-20(R)-panaxadiol (4), 3-oxo-7β,24β-dihydroxyl-20(R)-panaxadiol (5) ...
... Development of high-performance unipolar n-type organic semiconductors still remains as a great challenge. In this work, all-acceptor bithiophene imide-based ladder-type small molecules BTIn and semiladder-type homopolymers PBTIn (n = 1–5) were synthesized, and their structure–property correlations were studied in depth. It was found that Pd-catalyzed Stille coupling is superior to Ni-mediated Yam ...
European Union; case studies; decision making; interviews; issues and policy; ownership; stakeholders
Abstract:
... Against the backdrop of the General Data Protection Regulation (GDPR) taking effect in the European Union (EU), a debate emerged about the role of citizens and their relationship with data. European city authorities claim that (smart) citizens are as important to a successful smart city program as data and technology are, and that those citizens must be convinced of the benefits and security of su ...
antibiotics; bacteria; drug therapy; drugs; health services; multiple drug resistance; pathogens; pharmaceutical industry; research institutions; risk
Abstract:
... The rise of multidrug resistance in bacteria rendering pathogens unresponsive to many clinical drugs is widely acknowledged and considered a critical global healthcare issue. There is broad consensus that novel antibacterial chemotherapeutic options are extremely urgently needed. However, the development pipeline of new antibacterial drug lead structures is poorly filled and not commensurate with ...
... This study reports the synthesis and property evaluation of UV/oxidative dual curing waterborne polyurethane dispersion prepared from cardanol-based polyol using different mode of curing. Cardanol-based polyol was prepared by reacting epoxidized cardanol with itaconic acid in presence of triphenyl phosphine catalyst. Structures of cardanol-based intermediates (both epoxidized cardanol and polyol) ...
... This paper examines the regulation and management of dogs in the Mexican municipality of Isla Mujeres. It shows how dogs, on Isla Mujeres, are managed under a neoliberal framework of a decentralized government which relies on the personal responsibility of citizens and the outsourcing of essential services to non-government and private organizations. In so doing, this paper demonstrates some of th ...
... This article aims to contribute to the ongoing debate on post-capitalist economy by exploring the contours of a sustainability-oriented model of economic governance. To this end, the article analyzes the issues of sustainable development in the three main strands of international economic law (trade, investment, and finance) at national and transnational levels. The analysis reveals a policy inter ...
... We describe the identification, synthesis, and field bioassays of a novel aggregation-sex pheromone produced by males of Susuacanga octoguttata (Germar), a South American cerambycid beetle. Analyses of extracts of headspace volatiles produced by adult beetles revealed a sex-specific compound emitted by males which was identified as (Z)-7-hexadecene by microchemical and spectroscopic analyses. The ...
... While the sale of non-timber forest products (NTFPs) is nearly invisible in and marginal to official economic statistics, it is an important source of income for many rural populations in Amazonia. This paper discuss a NTFPs production and marketing chain (Mauritia flexuosa fruits) in Abaetetuba County, Northern Brazil. Research was carried out using the following methods: participant observation, ...
... Public forest administrations in the Western Balkans were challenged when facing novel forest policies following the breakup of Yugoslavia in the 1990s. To answer (i) what (formal) goals lead public forest administrations nowadays and (ii) how do public forest administrations fulfil these goals, we evaluated the implementation of forest policy goals in Serbia, Croatia, FYR Macedonia, and Republika ...
... Differential growth, the phenomenon where parts of the body grow at different rates, is necessary to generate the complex morphologies of most multicellular organisms. Despite this central importance, how differential growth is regulated remains largely unknown. Recent discoveries, particularly in insects, have started to uncover the molecular-genetic and physiological mechanisms that coordinate g ...
... Obesity is a chronic and complex medical condition characterized by excessive fat accumulation and its complications include metabolic syndrome, diabetes and chronic inflammation. The aim of this study was to expand the knowledge about p-chloro-diphenyl diselenide (p-ClPhSe)2 effects on enzymes and proteins involved in the metabolism of lipids and carbohydrates in a model of neuroendocrine obesity ...
materials science; photochemistry; physicochemical properties; systems engineering
Abstract:
... Molecular photoswitches comprise chromophores that can be interconverted reversibly with light between two states with different photochemical and physicochemical properties. This feature renders them useful for diverse applications, ranging from materials science, biology (specifically photopharmacology) to supramolecular chemistry. With new and more challenging systems to control, especially ext ...
... The recent, neoliberal period has seen a deepening penetration of capital into agriculture in Turkey alongside mass urban migration. This would seem to imply the realisation of classical political economic theory, which argues for the demise of the peasantry. Yet, while the number of people living in villages in Turkey has declined quite dramatically in recent years, the number of smallholdings ha ...
Cannabis sativa; chemical reactions; cytotoxicity; enantiomers; endoplasmic reticulum; fruits; hemp; high performance liquid chromatography; organic chemistry; organic compounds; spectral analysis
Abstract:
... (±)-Sativamides A (1) and B (2), two pairs of nor-lignanamide enantiomers featuring a unique benzo-angular triquinane skeleton, were isolated from the fruits of Cannabis sativa (hemp seed). Their structures were elucidated by detailed spectroscopic analysis and ECD calculations. The resolution of (+)- and (−)-sativamides A and B were achieved by chiral HPLC. Pretreatment of neuroblastoma cells wit ...
... Bioassay-guided fractionation of the ethanolic extract from the whole plants of Pteridium aquilinum has resulted in the isolation of a new pterosin glycoside, (‒)-pteroside N (1), and a new seco-illudoid sesquiterpene, pterosinone (2). Their structures were identified by analysis of the spectroscopic data including extensive 2D NMR. All of the isolates were evaluated for the anti-Alzheimer disease ...
... Several studies propose that (−)-epicatechin, a flavonol present in high concentration in the cocoa, has cardioprotective effects.This study aimed to evaluate the impact of (−)-epicatechin on the development of dilated cardiomyopathy in a δ sarcoglycan null mouse model.δ sarcoglycan null mice were treated for 15 days with (−)-epicatechin. Histological and morphometric analysis of the hearts treate ...
... Oxidative stress plays a main role in the pathogenesis of the diabetic nephropathy. The present study investigated the effect of (−)-epicatechin (EC) and the colonic-derived flavonoid metabolites 2,3-dihydroxybenzoic acid, 3,4-dihydroxyphenylacetic acid (DHPAA), and 3-hydroxyphenylpropionic acid on the redox status in high-glucose-exposed renal proximal tubular NRK-52E cells. EC and DHPAA (10 µM) ...
active sites; alpha-amylase; alpha-glucosidase; animal disease models; digestion; epigallocatechin gallate; gluconeogenesis; glucose; green tea; high fat diet; homeostasis; human diseases; hydrolysis; intestinal absorption; lipogenesis; liver; mice; molecular dynamics; noninsulin-dependent diabetes mellitus; obesity; pharmacokinetics; polyphenols; small intestine; starch; therapeutics
Abstract:
... As a major component of green tea, (−)-epigallocatechin-3-gallate (EGCG) has attracted interest from scientists owing to its potential to combat a variety of human diseases including abnormal glucose metabolism in obesity and diabetes. This study aims to (1) evaluate the molecular mechanism of EGCG in starch digestion before EGCG absorption; (2) investigate the link between PXR/CAR-mediated phase ...
... In this study, we aimed to investigate relaxant effect of flavanol (−)‐epicatechin on the isolated human saphenous vein (HSV), as a part of its cardioprotective action, and to define the mechanisms underlying this vasorelaxation. (−)‐Epicatechin induced a concentration‐dependent relaxation of HSV pre‐contracted by phenylephrine. Among K⁺ channel blockers, 4‐aminopyridine, margatoxin, and iberiotox ...
... Urokinase plasminogen activator (uPA) and its inhibitor plasminogen activator inhibitor‐1 (PAI‐1) are established independent biomarkers for high metastasis risk in breast cancer. In this study, we investigated the regulatory activity of (−)‐epigallocatechin‐3‐gallate (EGCG) and its derivatives on uPA and PAI‐1 expression and thereby their anti‐metastatic potential. EGCG showed only marginal effec ...
... Geosynchronous spaceborne-airborne bistatic synthetic aperture radar (GEO SA-Bi SAR), which employs a geosynchronous orbit (GEO) satellite as a transmitter and an aeroplane that works on the ‘receive-only’ mode as a receiver, is distinct from general bistatic synthetic aperture radar (SAR) systems. In this paper, a GEO SA-Bi SAR system with multi-receive antenna is consider for marine surveillance ...
ambient temperature; detection limit; electron transfer; fluorescence; microparticles; pH; phosphorescence; polymers; porous media; quantum dots; silica; standard deviation; transferrin
Abstract:
... The relationship between the thickness of surface molecularly imprinted polymers (MIPs) and specific recognition performance of transferrin (Trf) as well as the quantitative relation between the grafting amount of Mn-ZnS room-temperature phosphorescence (RTP) quantum dots (QDs) (short for PQDs) and RTP signals for recognition of Trf was analyzed in this study. Based on analysis results, RTP protei ...
... Electrocatalytic activity for the four-electron-transfer oxygen reduction reaction (ORR) was examined with perovskite-type La₀.₇Sr₀.₃Mn₁–ₓNiₓO₃—δ (x = 0–0.5) compounds in concentrated KOH. Electrochemical measurements by means of a rotating ring–disk electrode technique revealed that 10% substitution of Mn by Ni atoms significantly improved ORR activity whereas further Ni substitution significantl ...
... This article introduces a special issue that is dedicated to a critical inquiry of the deagrarianisation and depeasantisation theses. It sets the scene for the contributions that are included in the special issue and sketches the themes that are covered. An analysis of this kind is important because ultimately, it is concerned with key agrarian questions about the future of family farming, food se ...
... The stability and lowest existing temperature for the rotator phase of long-chain acrylate were improved remarkably simply through the ultra-addition effect of physical blending of two long-chain acrylates, which leads to a wider operation window and better rotator-state photopolymerization. Hexadecyl acrylate (HDA) and tetradecyl acrylate (TDA) were proved existing rotator phase like previously r ...
... To investigate the developmental effects and corresponding molecular mechanism of diesel in freshwater organisms, zebrafish embryos were exposed to 0# diesel water-accommodated fraction (WAF) at different concentrations. Mortality, embryonic morphological endpoints, transcriptional profile and lipid profile were evaluated after exposure. Exposure to 0# diesel WAF had no significant effect on the s ...
colloids; durability; electric current; ferric oxide; photocatalysis; photocatalysts; pollutants; pollution; quantum dots; temperature
Abstract:
... 0D/2D photocatalysts have aroused concern due to the high charge mobility. Herein, a 0D/2D structure is formed by employing a facile method to disperse Fe2O3 Quantum-Dots (QDs) on 2D-C3N4 without aggregation at a relatively low temperature of 200 °C. The ultrathin monolayer 2D structure, highly dispersed Fe2O3 QDs, the strong coupling as well as quantum-sized confinement effect between them lead t ...
... Recurrence of glioblastoma is one of the major concerns due to its heterogeneous nature and association of Glioma Initiating stem-like Cells (GICs). Nanoparticles mediated delivery of chemotherapeutic agent targeting both cancer and glioma stem cells could provide a solution to recurrent malignancies of the glioblastoma tumor. The approach described here provides enhanced chemotherapeutic potency ...
... Several oxidative approaches namely thiocyanation of aromatic compounds, epoxidation of alkenes, amidation of aromatic aldehydes, epoxidation of α, β-unsaturated ketones, oxidation of sulfides to sulfoxides and sulfones, bayer-villeger reaction, bromination and iodation of aniline and phenol derivatives oxidative esterification, oxidation of pyridines and oxidation of secondary, allylic and benzyl ...
amides; chemical reactions; chemical structure; secondary amines
Abstract:
... 1,1-Diacyloxy-1-phenylmethanes and 1-pivaloxy-1-acyloxy-1-phenylmethanes have been used as bench stable N-acylating reagents for primary and secondary amines and anilines under solvent-free conditions to afford their corresponding amides in good yield. ...
alkynes; catalytic activity; chemical reactions; ligands
Abstract:
... A catalytic hydrophosphination route to 1,1-diphosphines is yet to be reported: these narrow bite angle pro-ligands have been used to great effect as ligands in homogeneous catalysis. We herein demonstrate that terminal alkynes readily undergo double hydrophosphination with HPPh₂ and catalytic potassium hexamethyldisilazane (KHMDS) to generate 1,1-diphosphines. A change to H₂PPh leads to the forma ...
catalysts; cobalt; differential scanning calorimetry; isomers; isoprene; ligands; magnesium; molecular weight; new family; nuclear magnetic resonance spectroscopy; polymerization; polymers; temperature
Abstract:
... Metal‐catalyzed selective isoprene polymerization has been a major entry toward cis‐1,4, trans‐1,4, and 3,4 isomers of polyisoprene, however, 1,2 selective polymerization of isoprene has not yet been achieved due to the steric problem. In this work, difluoro cobalt complexes carrying aminophosphory (‐HN‐P(=O) ᵗBu₂‐) fused pyrazol‐pyridine ligand has been prepared and characterized. In combination ...
... Annulated corannulenes 3–5 form via distinct synthetic pathways: (i) Pd-catalyzed sp³ CH insertion, (ii) Pd-catalyzed aryl coupling, and (iii) silyl cation-promoted C–F activation/CH insertion. Crystal structure, redox, and photophysical studies elucidate the differing influence of 1,2,3- versus 1,2-indeno ring fusions. Mono and dianions of 3–5 are characterized. Resolution of 4 gives enantiopure ...
... The reaction of 1-(2-bromophenyl)-4-phenyl-1H-1,2,3-triazole (1) with Ph₂PCl yielded bisphosphine, 5-(diphenylphosphanyl)-1-(2-(diphenylphosphanyl)phenyl)-4-phenyl-1H-1,2,3-triazole (2). Bisphosphine 2 exhibits ambidentate character in either the κ²-P,N or κ²-P,P coordination mode. Treatment of 2 with [M(CO)₄(piperidine)₂] (M = Mo and W) yielded κ²-P,N and κ²-P,P coordinated Mo⁰ and W⁰ complexes [ ...
... A facile and convenient approach has been designed for the synthesis of novel prototypes that possess the advantage of the two pharmacophores of chromene and 1,2,3-triazole in a single molecular backbone, were evaluated against Mycobacterium tuberculosis H37Rv strain. The new analogues 1,2,3-triazole-fused spirochromenes were accomplished in four step synthetic strategy utilizing click chemistry ( ...
... The present study describes the synthesis of 1,2,3-triazole–quinazolinone conjugates (5a–q) from ethyl 4-oxo-3-(prop-2-ynyl)-3,4-dihydroquinazoline-2-carboxylate and phenyl azide/substituted phenyl azides employing Cu(i) catalysed Huisgen 1,3-dipolar cycloaddition. The corresponding acids (6a–q) were obtained by hydrolysis of esters (5a–q) to study the effect of these functionalities on the biolog ...