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natural resource management; agricultural education; alternative crops; alternative farming; marketing strategies; decision support systems; decision making; buckwheat; Fagopyrum esculentum; Minnesota
Abstract:
... Decision cases have been used in the USA for both classroom and extension education within agriculture and natural resources. Use of cases has sometimes been limited by the extensive amount of time that may be required to assign and analyze conventional, text-based cases. Availability of video decision cases, which are visual and do not necessarily require reading, could foster the use of cases on ...
fluorescence in situ hybridization; messenger RNA; alternative splicing; humans; complementary DNA; sequence alignment; dogs; single nucleotide polymorphism; amino acid sequences; gene expression; genes; nucleotide sequences; chromatin; sequence homology; physical chromosome mapping; dog breeds
Abstract:
... HMGA1 nonhistone proteins are reported to participate in various cellular processes including regulation of inducible gene transcription, integration of retroviruses into chromosomes, and the induction of neoplastic transformation and promotion of metastatic progression of cancer cells. Overexpression of HMGA1 was shown to be characteristic for various malignant tumors, suggesting a relation betwe ...
... Greater Prairie Chickens started their range expansion from Wisconsin about 1900. They reached Sault Ste. Marie, Ontario, by 1925 and completed colonization of Manitoulin Island by 1945. In the fall of 1932, an irruption of Northern Sharp-tailed Grouse from the Hudson Bay Lowlands occurred. Residents of Manitoulin distinguished the two species and reported the presence of “square-tails” and “sharp ...
diabetes; peripheral nervous system diseases; walking
Abstract:
... OBJECTIVE:--Peak plantar pressures (PPPs) have been studied extensively as a contributing factor to skin breakdown, especially in the forefoot where most plantar neuropathic ulcers occur. The purposes of this article were to 1) describe an additional pressure variable, the peak pressure gradient (PPG), 2) determine whether the PPG is higher in the forefoot than in the rearfoot (even when compared ...
agromedicine; agricultural health and safety; agricultural education; high schools; program evaluation; Northeastern United States; Mid-Atlantic region
celiac disease; steatorrhea; women; men; dietary restriction; food choices; dietary surveys; quality of life; psychological stress; life events
Abstract:
... Aim: The aim of this study was to explore the dilemmas experienced by women and men in their everyday lives in relation to their coeliac disease, and to explore the qualities of these dilemmas in relation to specific situations and living conditions. Methods: We interviewed 43 informants, aged 20-40 years, using 'The Critical Incident Technique'. Interviews focused on situations that gave rise to ...
... To verify the compatibility behaviour of the almond cultivar 'Francoli' and to clarify its S genotype a combination of pollination tests, stylar ribonuclease and allele specific PCR analysis was used. 'Francoli' was released from IRTA's breeding programme in 1994, having been putatively raised from the cross 'Cristomorto' (S1S2) x 'Gabaix' (S10S25). This cultivar was also reported to be self-incom ...
... Application of growth promoters or inhibitors and mowing height adjustment are potential means of improving the growth and performance of TifEagle bermudagrass [Cynodon dactylon (L.) Pers. x C. transvaalensis Burtt-Davy] in a reduced light environment (RLE). A study was conducted in June to August 2001 and 2002 to examine the effects of growth factors and two mowing heights on TifEagle bermudagras ...
acetaldehyde; glyoxylic acid; chemical reactions; catechin; model food systems; wines; winemaking; food chemistry
Abstract:
... (+)-Catechin reaction with two aldehydes (acetaldehyde and glyoxylic acid) was studied in winelike model solution. The two aldehydes were reacted either individually or together with (+)-catechin and in molar excess. The reactions were followed by HLPC-UV and HPLC-ESI/MS to monitor (+)-catechin disappearance as well as dimer and polymer appearance. In all reactions a reaction order of close to 1 f ...
... (1[rightwards arrow]3),(1[rightwards arrow]4)-ss-Glucans had previously been detected in nonlignified cell wall preparations of only the Poaceae and five other families in the graminoid clade of the Poales (s.l.). Cell walls of vegetative organs of 12 species in nine families of the Poales (s.l.) were examined by immunogold labeling using a monoclonal antibody to (1[rightwards arrow]3),(1[rightwar ...
insect pests; Pseudococcus viburni; sex pheromones; chemical composition; monoterpenoids; field experimentation
Abstract:
... The sex pheromone of the obscure mealybug, Pseudococcus viburni, consists of (1R*,2R*,3S*)-(2,3,4,4-tetramethylcyclopentyl)methyl acetate, the first example of a new monoterpenoid structural motif in which the two isoprene units forming the carbon skeleton are joined by 2'-2 and 3'-4 connections rather than the usual 1'-4, head-to-tail connections. This highly irregular terpenoid structure, and th ...
chemical reactions; enzyme activity; kinetics; models; moieties; pH; thymine
Abstract:
... A model compound containing a thymine oxetane moiety linked to a flavin chromophore was investigated regarding (6-4)-photolyase activity. The need for a charge shift reaction was demonstrated by a detailed pH-dependent kinetic analysis. ...
insect pests; sex pheromones; chemical composition; stereoisomers; field experimentation; insect traps; pest monitoring; insect control
Abstract:
... We identified, synthesized, and field-tested the sex pheromone of female red cedar cone midge Mayetiola thujae (Hedlin) (Diptera: Cecidomyiidae), a pest insect in red cedar Thuja plicata seed orchards. Coupled gas chromatographic (GC)-electroantennographic detection analyses of pheromone extract revealed three components (A, B, C) that elicited responses from antennae of males, all of which occurr ...
... In response to insect feeding, corn plants (Zea mays cv. Delprim) release elevated levels of volatile organic compounds (VOCs), including the C6-volatile (Z)-3-hexenol. The level of mRNA accumulation for a series of defense genes was monitored in response to application of (Z)-3-hexenol (50 nmol) to undamaged plants. The induction of transcripts for hpl (hydroperoxide lyase), fps (farnesyl pyropho ...
catalysts; catalytic activity; chemical reactions; ligands; phosphine
Abstract:
... The vinylideneruthenium(ii) complexes bearing bulky and basic tertiary phosphine ligands, RuCl₂(CCHPh)L₂ (L = PPrⁱ₃, PCy₃), serve as good catalyst precursors for (Z)-selective cross-dimerization between arylacetylenes and silylacetylenes in the presence of N-methylpyrrolidine. ...
... (−)-Menthol is the most familiar of the monoterpenes as both a pure natural product and as the principal and characteristic constituent of the essential oil of peppermint (Mentha x piperita). In this paper, we review the biosynthesis and molecular genetics of (−)-menthol production in peppermint. In Mentha species, essential oil biosynthesis and storage is restricted to the peltate glandular trich ...
... Dppf is one of the most useful and popular ligands in coordination chemistry. Its overwhelming success has overshadowed and arguably even delayed the development and use of closely related ferrocene-based ligands with two ligating N, O or S atoms. Recently, however, dynamic progress concerning such homo-donor ligands can be noted. This tutorial review describes the main results obtained over the p ...
... The organometallic tetraradical 1,2,4,5-[(η⁷-C₇H₇)V̇(η⁵-C₅H₄)]₄C₆H₂ has been prepared and structurally characterized. The isotropic EPR spectrum displays 29 a(⁵¹V) hyperfine lines, the intensity distribution slightly deviating from binomial. Exchange coupling therefore approaches the strong exchange limit, Jₒᵣₜₕₒ ≠ Jₘₑₜₐ ≠ Jₚₐᵣₐ ≳50 a(⁵¹V) with a(⁵¹V) = 0.0067 cm⁻¹. According to magnetic susceptom ...
... 1,3-Dipolar cycloaddition reactions of nitrones with alkenes and alkynes are well-studied reactions in solution-phase organic chemistry. However, the number of studies concerned with their application in solid-phase organic synthesis is rather low compared to other 1,3-dipoles, e.g. azides or nitrile oxides. This tutorial review aims to summarise the main approaches towards the application of nitr ...
chemical compounds; epoxidation reactions; oxidation
Abstract:
... 1,4-Cyclohexadienes allow a direct comparison of epoxidation and C–H oxidation within the same molecule and give evidence for radical pathways during the Jacobsen epoxidation. ...
... Many bees are oligolectic and collect pollen for their larvae only from one particular plant family or genus. Here, we identified flower scent compounds of two Salix species important for the attraction of the oligolectic bee Andrena vaga, which collects pollen only from Salix. Flower scent was collected by using dynamic-headspace methods from Salix caprea and S. atrocinerea, and the samples were ...
... The novel ionic liquid, 1-butyl-3-methylimidazolium 3,5-dinitro-1,2,4-triazolate has been synthesized and exhibits an unexpectedly low melting point (35 °C) considering the size and shape of the rigid, planar anion; analogous tetraalkylammonium salts (methyl, ethyl and n-butyl) have also been prepared and the tetraethylammonium example was characterized by single crystal X-ray diffraction. ...
chemical compounds; chemical reactions; nanomaterials; synthesis
Abstract:
... The chemical synthesis of 1-dimensional (1-D) PEDOT nanostructures in the form of tubes, rods, thimbles, and belts has been successfully accomplished through the use of a “hard template”. ...
... Chinese cabbages cv 'Yuki' (Brassica campestris L ssp pekinensis (Lour) Olsson) were treated with air containing 1-methylcyclopropene (1-MCP) at concentrations ranging from 0 to 1 microliter l(-1) for 12 h at 22 degrees C before storage for 9 weeks at 3 degrees C. Quality, weight loss and trimming loss were measured before treatment, and before and after storage, but were not influenced by 1-MCP. ...
... 1-Methylcyclopropene (1-MCP) is a new technology that is applied commercially to inhibit ethylene action in apple fruit, but its interactions with existing technologies such as diphenylamine (DPA) for control of superficial scald development in fruit during and after storage is unknown. To investigate possible interactions between 1-MCP and DPA, Delicious apples were untreated or treated with 2 g ...
... 1-Triflylpyrroles bearing acetyl group(s) on position 3, or 2 and 4, are efficient dienophiles in normal electron demand Diels–Alder reactions activated by high pressures and Lewis acids. ...
... Lactococcus lactis is a Gram-positive lactic acid bacterium that, in addition to its traditional use in food fermentations, is increasingly used in modern biotechnological applications. In the last 25 years great progress has been made in the development of genetic engineering tools and the molecular characterization of this species. A new versatile and tightly controlled gene expression system, b ...
... Five compounds of iridoids, lignan and phenylpropanoid glycosides were isolated from the roots ofValeriana jatamansi by column chromatography. Their structures were elucidated as 11-methoxyviburtinal (1), baldrinal (2), prinsepiol-4-O-β-D-glucoside (3), coniferin (4), and hexacosanic acid (5) by spectroscopic analysis. 11-Methoxyviburtinal was a new compound, and others were isolated from the plan ...
... Total globulins extracted with 0.4 M NaCl in buffer from coconut endosperm separated into two peaks on gel filtration: peak I corresponding to 11S globulin or cocosin and peak II to 7S globulin with native molecular weights of 326 000 and 156 000, respectively. The percent composition of total globulins was estimated to be 11S, 86% and 7S, 14%. On SDS-PAGE, cocosin resolved into two closely migrat ...
... The detailed analysis of peach seed oil was performed using 1H and 13C NMR spectroscopy. From the 13C NMR solution spectra it was possible to detect the content of saturated, mostly palmitic fatty acids (approximately 100 g kg(-1)), the oleic-linoleic ratio in sn-1,3 and sn-2 positions was (2:1 and 1:2) and the positional distribution of glycerol esters on triacylglycerol chains, which is a mixtur ...
... It is difficult to quantify the mechanism(s) responsible for competition-induced yield loss using traditional experimental techniques. A technique using yield and ¹³C discrimination (ΔΔ) for wheat, a C₃ plant, has been developed to separate total yield loss (TYL) into yield loss due to N (YLNS) and water (YLWS) stresses. The objective of this research was to determine whether the ΔΔ approach could ...