Báo cáo khoa học: "Variation in forest gas exchange at to continental scales landscape" ppt

... for monitoring and comparing gas exchange of forest ecosystems at the continental scale, using standardized instrumentation and software. The data base now being assembled and to ... differentially define the parallel flux contributions of two or Original article Variation in forest gas exchange at landscape to continental scales John D. T...

Ngày tải lên: 09/08/2014, 04:20

... showed that the stomatal in- dex, ie the number of stomata related to the total number of epidermic cells, de- pends on light conditions. The stomatal in- dex increases ... increases during the ontogenic phase of the leaf. Regarding our results this could indicate that shade has a doubly negative effect on stomatal density: a), by increasing...

Ngày tải lên: 08/08/2014, 23:22

Ngày tải lên: 07/08/2014, 23:22

... interest in phenological variation in maritime pine originates from an observa- tion that such variation appeared to be asso- ciated with differences in susceptibility to twisting ... contributing fac- tor in red pine shoot growth (Jones et al, 1991). Site effects may also result in part from differences in the accuracy of weather station...

Ngày tải lên: 08/08/2014, 19:21

... put in plastic bags and transferred to our laboratory, and stored in the refrigerator together with the rest of the samples prior to examination. Data obtained was statistically ... a razor blade at their mid-points. The sections were placed on glass slides in a solution 1:3 of glycerine in alcohol to prevent dessication dur- ing their e...

Ngày tải lên: 08/08/2014, 23:22

... the investigated polymorphisms might further elucidate their role in allergic diseases. Abbreviations AD: atopic dermatitis; ECP: eosinophil cationic protein; EDN: eosinophil derived neurotoxin; ... not show an association with this disease in a small cohort [10]. Since eosinophil degranulation seems to play an impor- tant role in AD, we speculated that variation in genes encoding e...

Ngày tải lên: 11/08/2014, 07:20

... cited. confounding factors. Even though gender was not found to be associated with periodontitis, we included it in the confounding factors in the multivariate analysis, to adjust for any small confounding ... Scarel-Caminaga RM, Trevilatto PC, Souza AP, Brito RB, Line SR: Investigation of IL4 gene polymorphism in individuals with different levels of chronic periodontitis in a Bra...

Ngày tải lên: 11/08/2014, 07:21

... prepara- tion to be monitored by PAGE analysis (see supple- mentary Fig. S1). The Tth PNPase isolation procedure included heating of the cell lysate at 70 °C, resulting in denaturation and precipitation ... 3¢-terminal phos- phate [50]. The fact that periodate oxidation of RNA, resulting a conversion of the 2¢,3¢-cis-glycol to dialde- hyde, also has an inhibitory effect indicates that...

Ngày tải lên: 16/03/2014, 06:20

... higher (P = 0.05) in plants inoculated early (immediately or 15 d after germination) than in plants inoculated later. Application of combined nitrogen to the medium did not ... were inoculated early (ie immediately, T(I) = 0 d after germination or T (15) = 15 d after germination) in the absence of combined N, nodulation was restricted...

Ngày tải lên: 09/08/2014, 03:24

... Montoya JG, Kinney S, Press C, Remington JS: Effect of testing for IgG avidity in the diagnosis of Toxoplasma gondii infection in pregnant women: experience in a US reference laboratory. J Infect ... made, treatment is rarely required for asymptomatic patients who are immunocompetent. Proper education and counseling regarding risk factors can reduce the incidence and risk of acquiring t...

Ngày tải lên: 11/08/2014, 03:20