co 2 assimilation rate and carboxylating enzymes activity
Báo cáo lâm nghiệp: "Environmental control of CO assimilation rate and leaf 2 conductance in two species of the tropical rain forest of French Guiana (Jacaranda copaia D. Don and Eperua falcata Aubl.)" pdf
... into account by the concurrent stomatal closure, since in the J copaia leaflets, A decreased at constant, or even slightly increasing, calculated intercellular C0 concentrations (Fig 2) , thus ... (1986) Diurnal variations of light saturated C0 assimilation and intercellular carbon dioxide concentration are; not related to leaf water potential Oecologia (Berlin) 69, 477-480 Schulze E.D, ... air humidity and leaf temperature in controlling stomatal resistance of Prunus armeniaca L under desert conditions I A simulation of the daily time course of stomatal resistance Oecologia 17,...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "Limitation of photosynthetic activity by CO 2 availability in the chloroplasts of oak leaves from different species and during drought" pdf
... cients between air and water for CO 2 hO2 ) hCO2 (K and O (K have been derived ) from Umbreit et al (19 72, in Edwards and Walker, 1983); pH-related changes in the partitioning coefficients were ... for calculations of temperature dependent (t) coefficients: which yields values of 0.03636 and 0.00 125 mol I bar at 22 .5 °C for K and K -1 -1 , hO2 hCO2 respectively Equation [8] may then be rewritten ... CO influx; g leaf con2 s+b ductance to CO g = mesophyll conduc; 2m tance to CO c c c = gas phase mole ; , , a i fractions of CO in the atmosphere, in the substomatal spaces and in the chloroplast...
Ngày tải lên: 08/08/2014, 18:21
the phanerozoic carbon cycle co[2 and o[2 aug 2004
... (Berner, 1994; Berner and Kothavala, 20 01) by the dimensionless parameter fBb (CO2 ) expressed as the Michaelis-Menton equation: fBb (CO2 ) = [2RCO2/(1 + RCO2)]n (2. 6) where RCO2 = mass of carbon dioxide ... Ca++ + 2HCO3– → CaCO3 + CO2 + H2O (1 .2) and the silicic acid as biogenic silica: H4SiO4 → SiO2 + 2H2O (1.3) The calcium carbonate and biogenic silica are then buried in marine sediments and eventually ... of CO2 to form HCO3–, we combine equation (2. 22) with the GCM greenhouse equation (2. 8) to obtain the nondimensional greenhouse parameter fBg (CO2 ) (subscript g stands for greenhouse): fBg (CO2 )...
Ngày tải lên: 11/06/2014, 00:40
Báo cáo hóa học: " Research Article Diurnal Changes of Heart Rate and Sympathovagal Activity for Temporal Patterns of Transient Ischemic Episodes in 24-Hour Electrocardiograms" pptx
... s30 721 , s30741, s307 42, s30761, s30771 and s30781), 18 records had no significant ischemic changes (s20011, s20061, s20071, s20091, s20141, s2 020 1, s2 021 1, s2 022 1, s2 023 1, s2 024 1, s20501, s20 521 , ... pattern of episodes: s20031, s20081, s20101 (see Figure 3), s20191, s2 025 1, s20331, s20341, s20351, s20361, s20381, s20391, s20431, s20441, s20451, s20481, s20491, s20551, s20571, s20601, s30701, s30731, ... s20 521 , s20531, s20541, s20 621 , s20631, s20641 and s20651), while records were excluded as duplicate records of patients already included in one of the three sets (s2 027 2, s2 027 3, s2 027 4, s307 32, and...
Ngày tải lên: 22/06/2014, 20:20
Báo cáo khoa học: "Leaf gas exchange and carbohydrate concentrations in Pinus pinaster plants subjected to elevated CO 2 and a soil drying cycle" doc
... (PAR) -2 -1 values ranged from 900 to1 20 0 μmol m sair tem; perature from 28 to 32 °C; VPD about 28 .9 hPa and the -1 atmospheric [CO 380 .2 ± 1.1 pmol mol and ] 707.7 ± 2. 5 μmol mol -1 2. 3 ... organic compounds such as non-structural soluble carbohydrates (mainly glucose, fructose and sucrose) [7] Elevated atmospheric CO concentration ( [CO ]) generally stimulates the CO assimilation rate ... (1990) 22 7 -23 8 [2] Ceulemans R., Mousseau M., Effects of elevated atmospheric CO on woody plants, New Phytol 127 (1994) 425 -446 [3] Chaves M.M., Pereira J.S., Water stress, CO and cli2 mate change,...
Ngày tải lên: 08/08/2014, 14:21
Báo cáo toán học: "Responses to elevated atmospheric CO concentration 2 and nitrogen supply of Quercus ilex L. seedlings from a coppice stand growing at a natural CO 2 spring" pot
... elevated , CO J Biogeogr 22 (1995) 25 5 -25 9 [10] Coleman J.S., McConnaughay K.D.M., Bazzaz F.A., Elevated CO and plant nitrogen-use: is the tissue nitrogen con2 centration size-dependent?, Oecologia ... elevated CO on mediterranean grassland and forest trees, Oecologia 99 (1994) 343-51 [29 ] Lambers H., Rising CO secondary plant metabolism, , interactions and litter decomposition Theoretical considerations, ... atmospheric CO concentration on natural and com2 mercial temperate trees and forests, Adv Ecol Res 19 (1989) 1-55 [17] El Kohen A., Rouhier H., Mousseau M., Changes in dry weight and nitrogen...
Ngày tải lên: 08/08/2014, 14:21
Báo cáo lâm nghiệp: "Growth dynamics, transpiration and water-use efficiency in Quercus robur plants submitted to elevated CO 2 and drought " pdf
... elevated [CO treatment ] also observed on d2 42, d244, d286, but not on d204, d216, d238 and d2 72 With was Under the droughted conditions, A was significantly stimulated in the elevated [CO ] treatment ... atmospheric CO on woody plants New Phytol 127 , 425 -446 Chaves MM, Peirera JS (19 92) Water stress, climate change J Exp Bot 43, 1131-1139 CO and Coleman JS, Bazzaz FA (19 92) Effects of CO and tem2 perature ... between +56 and + 121 %) under elevated than under ambient [CO on all measurement dates but not ] on d204, d216, d244 and d2 72 The mean values of A/g were positively linked with / p 2 (r 0.78,...
Ngày tải lên: 08/08/2014, 18:21
Báo cáo lâm nghiệp: "The effects of elevated CO 2 and water stress on whole plant CO 2 exchange, carbon allocation and osmoregulation in oak seedlings" docx
... exudation and mycorrhizal colonization of Pinus echinata seedlings grown under CO enrichment Tree Physiol 3, 20 32 210 Overdieck D (1993) Elevated CO and the mineral con2 tent of herbaceous and woody ... atmospheric CO on woody plants New Phytol 127 , 425 -446 Chaves MM, Pereira JS (19 92) Water stress, climate change J Exp Bot 43, 1131-1139 CO and Coleman JS, Bazzaz FA (19 92) Effects of CO and tem2 growth ... (19 92) Effects of CO and tem2 growth and resource use of co- occurring C and C annuals Ecology 73, 124 4- 125 9 Conroy JP (19 92) Influence of elevated atmospheric CO concentrations on plant nutrition...
Ngày tải lên: 08/08/2014, 18:21
Báo cáo khoa học: "Short-term variations and long-term changes in oak productivity in northeastern France. The role of climate and atmospheric CO 2" pot
... silvatica L) and hornbeam (Carpinus betuL) Prior to 1 826 , the forests were treated as coppice-with-standards stands for centuries From lus 1867 until 1914, most of the stands were regenerated to ... increase and those for a decrease are compared The ratio of special pointer years versus all pointer years is 57% (increase) and 48% common (decrease) for sessile oak, and 29 % (increase) and 60% ... 1879-1898, 1899-1910, 19171 924 , 1938-1946, and, especially, 197119 82 = 0.583 for sessile oak and r =0.6 12 for pedunculate oak This has encouraged us to search for and quantify the possible lag...
Ngày tải lên: 08/08/2014, 19:21
Báo cáo lâm nghiệp: "doubling atmospheric CO concentration on 2 matter distribution and CO exchange of 2 yr growth, dry 2 old sweet chestnut trees (Castanea sativa Mill.)" pptx
... into an airtight assimilation chamber where environmental conditions were controlled (22 /15°C day-night, 15 h photoperiod, 50% RH) Whole plant photosynthesis at 25 0 jlmol-m- PPFD and s’ dark respiration ... of the control plants The increase was statistically significant The shoot was 22 % lighter (P>95%) (P>80%) Consequently, the shoot/root ratio was changed from 0.49 in the control to 0 .23 in the ... of atmospheric C0 In chest nut trees, CO fertilization was accompa :2 nied by a decrease in leaf area and a reduction in shoot growth, which is very unusual and may have resulted from the timing...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo y học: "Development of daily rhythmicity in heart rate and locomotor activity in the human fetus" ppt
... 0.1 15 ± 0 .2 ± 0.1 32 ± 0 .2 20 21 I II III IV 10 ± 0 .2 10 ± 0.1 ± 0.1 15 ± 0 .2 - ± 0 .2 - - 30 ± 0 .2 1 2 ± 0.1 11 ± 0 .2 ± 0.4 15 ± 0 .2 - ± 0.3 - - 34 ± 0.4 21 22 I II III IV 12 ± 0.4 22 ± 0.4 15 ... 11 11 – 12 12 – 13 13 – 14 14 – 15 15 – 16 16 – 17 17 – 18 18 – 19 19 – 20 20 – 21 21 – 22 22 – 23 23 – 24 24 – 1 2 2–3 3–4 4–5 5–6 6–7 Mother (bpm) Fetus (bpm) 66.5 ± 1.3 * 68 ± 1 .2 * 68.5 ± ... of 16 to 28 weeks (16 to 17 weeks: n = 1; 17 to 18 weeks: n = 3; 18 to 19 weeks: n = 2; 19 to 20 weeks: n= 2; 20 to 21 weeks: n = 3; 21 to 22 weeks: n = 2; 22 to 23 weeks: n = 4; 23 to 24 weeks:...
Ngày tải lên: 10/08/2014, 09:20
Bài 25: Tổng hợp kiến thức hữu cơ 2
... X thể tích khí CO thu vượt 0,7 lít (ở đktc) Công thức cấu tạo X A O=CH-CH2 -CH2OH B HOOC-CHO C CH3COOCH3 D HCOOC2H5 Câu 16: Cho 0,1 mol chất hữu X (có công thức phân tử C2H8O3N2) tác dụng với ... hỗn hợp hai hiđrocacbon C xHy C xH z có số mol thu 1,7 92 lít khí CO2 (đktc) 1, 62 gam H2O Công thức phân tử hiđrocacbon A C3H8 C3H6 B C2H4 C2H6 C C4H10 C4H8 D C4H10 C4H6 Câu 11: Hoà tan hoàn toàn ... sinh 2, 24 lít NO2 (sản phẩm khử nhất, đktc) Công thức X A C3H7CHO B HCHO C C4H9CHO D C2H5CHO Câu 14: Cho 13,6 gam chất hữu Z (C, H, O) tác dụng vừa đủ với 300 ml dung dịch AgNO 2M NH3 thu 43 ,2 gam...
Ngày tải lên: 05/10/2012, 10:54
Báo cáo y học: "Effects of p-Synephrine alone and in Combination with Selected Bioflavonoids on Resting Metabolism, Blood Pressure, Heart Rate and Self-Reported Mood Changes"
... Eur J Clin Nutr 20 10; 64: 4 32- 435 20 21 22 23 24 25 26 27 28 Mulvihill EE, Allister EM, Sutherland BG, et al Naringenin prevents dyslipidemia, apolipoprotein B overproduction, and hyperinsulinemia ... Citrus aurantium [22 -25 ], and is widely distributed in other Citrus species [22 , 23 , 26 ] The safety of p-synephrine and bitter orange extract has recently been reviewed [27 ], and based on the ... stomach, concentration or general discomfort Table Blood Pressures and Resting heart Rates Treatment Variable SYSTOLIC Placebo T2 T3 T4 T5 P-Value1 Baseline 122 .9(17.7) 120 .5(14.5) 120 .0( 12. 3) 117.9(14.4)...
Ngày tải lên: 25/10/2012, 11:04
Báo cáo y học: "Relationship between Anti-CCP Antibodies and Oxidant and Anti-Oxidant Activity in Patients with Rheumatoid Arthrit"
... positive N 24 25 24 25 24 25 24 25 24 25 24 25 24 25 24 25 Serum GSHpx (U/ml) Mean 0.47 0.48 14.10 15.63 0.11 0.13 114 .23 1 12. 21 3.34 3. 52 50.39 53.63 0.64 0. 62 67.44 71.13 Std Deviation 0 .25 0.19 ... 24 25 24 25 24 25 24 25 0.0 72 0.074 0.156 0.145 2. 8 52 4.5 92 3.134 4.783 0. 027 0.0 32 0.088 0.086 0.509 0.780 2. 125 2. 654 0.4 32 0. 324 0. 021 * 0.037* *p
Ngày tải lên: 25/10/2012, 11:15
TOYOTA đào tạo kỹ thuật viên ô tô (Chuẩn đoán động cơ 2) - P1
... Toyota sử dụng Tuabin nạp khí tăng áp từ năm 1980 Máy nén tăng áp từ năm 1985 Nhật Bản Gần đây, năm 20 02, có Tuabin tăng áp sử dụng kiểu động nước (1/1) Đặc điểm Tuabin tăng áp Máy nén tăng áp Tuabin ... áp suất cao áp suất khí Nhờ thế, lượng không khí nạp vào xy-lanh tăng lên -2- TI LIU CHIA S TRấN DIN N WWW.OTO-HUI.COM Tham khảo Hiệu suất nạp khí Hiệu suất nạp khí Khả nạp khí động gọi hiệu ... WWW.OTO-HUI.COM Van cửa xả chấp hành Van cửa xả lắp khoang tuabin Khi van mở phần khí xả tắt qua ống xả, nhờ mà giữ ổn định cho áp suất nạp, áp suất nạp đạt đến trị số định (khoảng 0,7 kg/cm2) Việc...
Ngày tải lên: 30/10/2012, 10:11
TOYOTA đào tạo kỹ thuật viên ô tô (Chuẩn đoán động cơ 2) - P2
... tăng áp (1/3) - 12- TI LIU CHIA S TRấN DIN N WWW.OTO-HUI.COM Thận trọng bảo dưỡng (1) Không khởi động động có lọc khí tháo lọc khí để tránh dị vật lọt vào làm hỏng bánh tuabin tuabin (2) Trong trường ... WWW.OTO-HUI.COM Van cửa xả chấp hành Van cửa xả lắp khoang tuabin Khi van mở phần khí xả tắt qua ống xả, nhờ mà giữ ổn định cho áp suất nạp, áp suất nạp đạt đến trị số định (khoảng 0,7 kg/cm2) Việc ... ứng động tốc độ đạt công suất cao Minh hoạ bên trái động 2JZ-GTE sản xuất năm 1993-1999 (1/1) -5- TI LIU CHIA S TRấN DIN N WWW.OTO-HUI.COM Phương pháp tăng lượng phun nhiên liệu Động trang bị...
Ngày tải lên: 30/10/2012, 10:11
