... latent contamination, low multiplication and rooting rates (Driver and Kuniyuki, 1984; McGranahan et al, 1988; Cornu and Jay-Allemand, 1989; Revilla et mass Cosmo, 1984; Gershenzon, 1984) and could ... d) concentration of K and Mg, but only the increase in Mg was significant (fig 3) Differences in K and Na concentrations in the leaves led to a lower K/Na ratio in the leaves on agar than on Gelrite ... observed in leaves of explants growing on agar (fig 4) Only Naphthoquinone content Regarding the content of hydrojuglone glucoside and juglone in leaves, stem and callus, significant differences...
Ngày tải lên: 08/08/2014, 23:22
... Specific correlations between element contents from top -soil horizons and spruce needles due to characteristic stand conditions (bold P < 0.05) Spruce Location Element stand H-horizon needles P ... stands only marginally in the values of CEC, soil Ca2+, Mg2+ and PO4 – At 2+ 3– the same time Mg and PO4 were found to be the factors of plant nutrition depending on soil humification C/N and soil ... dependent on CEC It means that the precipitation of soil calcium carbonate depends on litter fall feed rate, calcium/ carbonate ratio, pH, complexing agents and their concentrations (Westin, Rasmuson...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo khoa hoc:" Comparison between the three porcine RN genotypes for growth, carcass composition and meat quality traits" pptx
... metabolic and contractile properties (longissimus, semimembranosus and semispinalis capitis) [16,27], were taken for determination of post mortem glycogen concentration, lactate concentration and GP ... condition (RTN, GP and ultimate pH), as well as on growth performance and carcass quality Results concerning the effects of the three RN genotypes on chemical composition, enzyme activities and myofiber ... paler meat and lower protein content), and the unfavourable relationship between GP and carcass lean to fat ratio is confirmed pig / major gene / RN gene / meat quality / carcass composition R´sum´...
Ngày tải lên: 09/08/2014, 18:21
Báo cáo hóa học: " Effect of Substrate Morphology on Growth and Field Emission Properties of Carbon Nanotube Films" pptx
... process and sometimes requires additional postsynthesis processing for FE measurements On the other hand, controlled and low-temperature growth of CNT films is desirable for FE-based applications ... edges on the surface of BS-CNTs act as additional emission sites [30, 31, 40] On the other hand, in case of vertically aligned BS-CNTs, conventional MWNTs, or single walled CNTs, emission is ... vertically aligned ones The defective structure of BSCNTs and their random orientations have been suggested to be responsible for the enhanced emission characteristics Emission not only occurs from...
Ngày tải lên: 22/06/2014, 01:20
Báo cáo lâm nghiệp: "Effects of the clear-cutting of a Douglas-fir plantation (Pseudotsuga menziesii F.) on the chemical composition of soil solutions and on the leaching of DOC and ions in drainage waters" pps
... depend on the site, on previous land occupation, on the intensity of soil disturbance, and on the vegetation (both trees and ground vegetation) Concerning the impact of clear-cutting on ecosystem ... units and DOC in mg L1 ) Forest clear-cutting and soil solutions 189 190 J Ranger et al Table IV Correlation coecient (r) between the concentration of anions and cations in the gravitational (A) and ... stand in a peaty-gley soil in Scotland The behaviour of gravitational solutions with very low and constant concentrations seemed to eliminate a control of their nitrate content by denitrication...
Ngày tải lên: 07/08/2014, 16:20
báo cáo khoa học: "Studies on dairy production of milking ewes I. - Estimates of genetic parameters for total milk composition and yield " pptx
... relationship between protein content and protein and fat yields, the selection criterion must include both useful yield and content instead of useful yield alone Since 1985, fat and protein contents ... Useful yield (U) and protein yields or contents, U and U % were content with the main and (U %) weightings defined as a combination of fat and of and 1.85 respectively : were secondary selection ... genetic correlations between matter yields and milk yield, between milk yield and both contents, between fat yield and content However, the genetic correlation between both contents seems to...
Ngày tải lên: 09/08/2014, 22:22
predicting tillage effects on soil physical properties and processes
... Gupta and W E Larson 151 Section IV Application of Predictions of Soil Physical Properties and Processes to Prediction of Crop Growth 11 Predicting Tillage Effects on Cotton Growth and Yield ... cultivation and ploughing on the growth of cereals Spring barley on a sandy loam soil: soil physical conditions and root growth J Agric Sci 89:631-642 12 - - - - , - - - - , F Pollard, R Q Cannell, and ... descriptions of soil behavior, soil- machine behavior, and resultant soil conditionis explored Research needs and directions in soil dynamics related to tillage and to prediction of the resultant soil...
Ngày tải lên: 02/12/2015, 15:16
Tài liệu Báo cáo Y học: The effects of ring-size analogs of the antimicrobial peptide gramicidin S on phospholipid bilayer model membranes and on the growth of Acholeplasma laidlawii B ppt
... these conditions The pretransition arises form a conversion of the (Lb¢) to the (Pb¢) phase and the main transition from the conversion of the Pb¢ to the La phase For a more detailed discussion of ... concentrated (0.50 lM), and completely suppressingly growth at concentrations of 1.0 lM and higher In contrast, GS12 is a much weaker growth inhibitory agent, with significant inhibition of growth ... growth being observed only at peptide concentrations of 1.0–2.0 lM with complete growth inhibition occurring only at the highest peptide concentration tested (4.0 lM) On the other hand, GS14 is a very...
Ngày tải lên: 21/02/2014, 01:21
Tài liệu Báo cáo Y học: The effects of low pH on the properties of protochlorophyllide oxidoreductase and the organization of prolamellar bodies of maize (Zea mays) pot
... fluorescence emission changes All samples contained 1.0 mM NADPH Fluorescence excitation wavelength was 440 nm Solid lines and dashed lines correspond to nonphotoconverted and photoconverted forms, ... Fig NADPH concentration dependence of the photoconversion of PChlide to Chlide of PLB suspended in pH 6.5 assay medium (A) Changes in percentage photoconversion in response to one, two, and four ... pH-driven conversion between the long- and short-wavelength forms of the enzyme Additions of NaF, adenyl nucleotides and adenosine were made after photoconversion to ensure the formation of POR-Chlide684...
Ngày tải lên: 22/02/2014, 04:20
Báo cáo " Effects of biosolids application on soil chemical properties in peri-urban agricultural systems " doc
... production under arid and saline conditions: yield and hygienic quality of the crop and soil contaminations, Water Science and Technology 33 (1996) 327 [5] FAO-ISRIC-ISSS, World reference base for soil ... Measurement of concentrations of trace metals in arable soils with animal manure application using instrumental neutron activation analysis and the concentrated acid digestion method, Soil Science and Plant ... soil: solution ratio) for dissolution of carbonates The soil EC and pH were measured in deionized H2O (1:5 soil: solution ratio), and pHCaCl2 was determined after adding 0.5M CaCl2 [27] The soil samples...
Ngày tải lên: 05/03/2014, 16:20
Báo cáo " Effects of using wastewater as nutrient sources on soil chemical properties in peri‐urban agricultural systems " ppt
... HCl (1:1 soil: solution ratio) for dissolution of carbonates. The soil EC and pH were measured in deionised H2O (1:5 soil: solution ratio), and pHCaCl2 was determined after addition of 0.5M CaCl2 [18]. The soil samples ... wastewater for crop production under arid and saline conditions: Yield and hygienic quality of the crop and soil contaminations, Water Science and Technology 33 (1996) 327. ... critical concentration due to their accumulation in soil, this can have negative environmental effects, which can include negative effects on soil biota and hence on microbial ...
Ngày tải lên: 14/03/2014, 15:20
Đề tài " Higher composition laws I: A new view on Gauss composition, and quadratic generalizations " docx
... composition is only one of at least fourteen composition laws of its kind which yield information on number rings and their class groups In this paper, we begin by deriving a general law of composition ... 217–250 Higher composition laws I: A new view on Gauss composition, and quadratic generalizations By Manjul Bhargava Introduction Two centuries ago, in his celebrated work Disquisitiones Arithmeticae ... form QB , yields an isomorphism of groups.3 2.6 Composition of pairs of quaternary alternating 2-forms Instead of imposing conditions of symmetry, one may impose conditions of skewsymmetry on cubes...
Ngày tải lên: 14/03/2014, 22:20
Investigation of au and in as solvents for the growth of silicon nanowires on si(1 1 1)
... and silicon This leads to larger droplets compared to those on the silicon oxide surface The size and distribution of gold and indium droplets on the silicon surface that we observed by SEM and ... coefficients of gold and indium on silicon, the solubility of substrate atoms in the two metals, the surface tension of gold and indium and the surface energy of silicon and silicon oxide Fig SEM ... current and dwell time of the ion beam Results and discussion The indium droplet distribution on the substrate before silicon evaporation appeared to be very inhomogeneous when a desorption step...
Ngày tải lên: 16/03/2014, 15:17
The Impact of Education on Economic Growth Theory, Findings, and Policy Implications potx
... stability and improved standards of living.”1 Many growth models include education and offer predictions as to the implications of education policy changes on macroeconomic performance Some empirical ... literature on education and its effects on economic growth Over the last several decades, there have been a number of new developments and findings on this subject in both the micro and macro ... individuals’ incomes on their level of education and other characteristics.7 Linking a nation’s growth For additional examples of externalities related to education beyond those mentioned here, we suggest:...
Ngày tải lên: 17/03/2014, 08:20
thermal treatment effects on the material and gas-sensing properties of room-temperaturetungstenoxidenanorodsensors
... concentration variation of step function The lowest plot in Fig displays the expected time profile of ethanol concentration for the sequence of injection and 20 recovery period In our detection ... possible oxidation state components Annealing conditions W6+ component a W5+ component a BE (eV) b None N2 , 400 ◦ C N2 , 600 ◦ C O2 , 300 ◦ C O2 , 500 ◦ C a b FWHM (eV) Population (%) BEa (eV) ... conditions of (A) nitrogen and (B) oxygen They were observed with an Ar-ion laser excitation at 514 nm close to the wavenumbers of the strongest modes of monoclinic tungsten oxide The two bands...
Ngày tải lên: 20/03/2014, 13:11
Báo cáo khoa học: Acute intermittent porphyria – impact of mutations found in the hydroxymethylbilane synthase gene on biochemical and enzymatic protein properties pdf
... mutations located on the same allele (one having low residual activity and the second one having relatively high residual activity), further investigation of the contribution of the mutation p.Gln204Lys ... p.Ala226ProfsX28 p.Glu250Asp Deletion of exon 12 c.76C>T c.77G>A c.518G>A c.610C>A c.675delA c.750A>T c.771 + 1G>T Exon Exon Exon 10 Exon 10 Exon 12 Exon 12 Intron 12 0.3 0.2 0.15 46 0.05 0.5 – ... a mutation can be evaluated by observing the function of the residue conserved in the structure and by assessing its conservation in the sequence in relation to structure and evolution p.Arg26Cys,...
Ngày tải lên: 23/03/2014, 04:21
Báo cáo khoa học: The b-N-acetylglucosaminidases NAG1 and NAG2 are essential for growth of Trichoderma atroviride on chitin doc
... 48 and 72 h, and the total protein concentration, corresponding to biomass formation, was measured for mycelial and conidial biomass after extraction with NaOH (Fig 3A) Our results show that growth ... previously [26] on PDA and also on agar plates with minimal medium salt composition and (a) glucose limitation (0.2% w ⁄ v), (b) nitrogen limitation (0.14 gÆL)1 ammonium sulfate), or (c) glucose and nitrogen ... (Multitron shaking incubator, Infors, Bottmingen, Switzerland) at 28 °C and 220 rpm, and kept in constant light to enable sporulation, which is linked to growth on this carbon source on agar...
Ngày tải lên: 23/03/2014, 05:22
Báo cáo khoa học: On peptide bond formation, translocation, nascent protein progression and the regulatory properties of ribosomes ppt
... may control the elongation of nascent chains The common sequence dependence of the elongation arrest, the existence of arrest-suppression mutations that should affect L22 conformation, and the ... tunnel by the swung conformation of L22; on the conservation of the L22 double-hook; and on the finding that sequence related translational arrest could be suppressed by mutations localized in the ... swing and the arrest mechanism is the finding that suppression mutations of rRNA occur close to the location of L22 b-hairpin, thus may affect its positioning and consequently its conformation Within...
Ngày tải lên: 23/03/2014, 17:22
evaluation of shape and size effects on optical properties of zno pigment
... surface area and surface roughness of particles and consequently, increase the light scattering efficiency [16,20] N2 adsorption–desorption results further confirmed Fig Low- and high-magnification FE-SEM ... The concentration of zinc nitrate and potassium hydroxide solutions (Molar) Experimental 2.1 Preparation of pigments ZnO samples were prepared by hydrothermal method and used for the evaluation ... higher and more uniform than scale-like ZnO The scattering of light by small particles is determined not only by the composition of the incident light and the optical properties of the particles and...
Ngày tải lên: 06/05/2014, 13:23
Báo cáo sinh học: "Shipping blood to a central laboratory in multicenter clinical trials: effect of ambient temperature on specimen temperature, and effects of temperature on mononuclear cell yield, viability and immunologic function" potx
... division of the raw data by the donor value at RT for 24 h Since donors served as blocks and contributed an observation from each condition (i.e each combination of temperature and duration level), ... http://www.translational-medicine.com/content/9/1/26 Page of 13 Table Effect of exposure to different incubation conditions on PBMC isolation from whole blood and recovery after cryo-preservation Cell Yield ... R, McFarland E, Fenton T, for the Pediatric ACTG Cryopreservation Working Group: Optimization and limitations of use of cryopreserved peripheral blood mononuclear cells for functional and phenotypic...
Ngày tải lên: 18/06/2014, 19:20