Báo cáo khoa học: "Evapotranspiration measurements in a Mediterranean forest stand by means of ecophysiological and microclimatic techniques" ppsx

... balance/BowenEvapotranspiration measurements in a Mediterranean forest stand by means of ecophysiological and microclimatic techniquesR. Valentini,G.E. Scarascia-MugnozzaM. SabattiIstituto ... stand av-erages 2400 sprouts and 97 standards of 2 ageclasses per ha (corresponding to the double and single harvesting cycle, respectively). Theleaf area index (LAI ... MethodsThe forest stand is located in central Italy,consists mainly of oaks (Quercus cerris L.) and is managed as coppice with standard trees ori-ginated by gamic reproduction....

Báo cáo khoa học: " CO efflux in a beech forest: dependence on soi" ppt

... resultingfrom increasing greenhouse gases in the atmosphere maycounteract this increase in carbon accumulation in soils by stimulating the mineralization rate of organic carbonpools ... 0.6 ha and is mainly composed of 30-year-old beeches. Herbaceous understory vegeta-tion is rather sparse. Average annual precipitation and airtemperature are 820 mm and 9.2 ... A and B two fittingparameters. Combining the data of both years the modelaccounts for 86 % of the variation in soil CO2 efflux,with A and B values of 1.13 and...

Báo cáo khoa học: "Soil CO in a beech forest: 2 efflux the contribution of root respiration Daniel" pptx

... remaining fine root necromass2 years after trenching to initial fine root biomass and necromass indicated that 53 % of killed fine roots disap-peared within 2 years ... was estimated by coring and sorting remaining dead roots in the trenched plots 2years after trenching. The remaining fine root necromasswas then compared to initial ... (1993)1402-1407.[5] Bréda N., Granier A. , Barataud F., Moyne C., Soil waterdynamics in an oak stand. Part I. Soil moisture, water poten-tials and water uptake by roots, Plant Soil...

Báo cáo khoa học: "Aboveground biomass in a beech forest and a Scots pine plantation in the Sierra de la Demanda area of northern Spain" pdf

... class="bi x0 y0 w0 h0" alt="" Original articleAboveground biomass in a beech forest and a Scots pine plantation in the Sierrade la Demanda area of northern SpainI Santa ... results indicate a total biomass of 152.1 mg ha-1 in the pine forest and 134.2 mg ha-1 in the beech forest, and litter fall was 5 791 kg ha-1 in the pine forest and ... Mediterranean climatic zoneforests of the Sierra de la Demanda, Burgos, Spain.Arid Soil Res Rehab 9, 201-207Santa Regina I, Gallardo JF, Rico M, Martin A, GallegoHA, Moreno...

Báo cáo khoa học: Structural ﬂexibility in Trypanosoma brucei enolase revealed by X-ray crystallography and molecular dynamics pdf

... within the tail downstream of the thrombincleavage site in the N-terminal extension containing the Histag) was observed at a crystal lattice interface between in thePAH and FPAH complexes. In ... a barrel domain preceded by an N-terminal a + bdomain [6]. The catalytic site is contained completelywithin a single subunit and lies at the interface of thetwo domains: monomeric enolase ... Corporation,Tokyo, Japan) or at the MX1 beam line at the Laborato´rioNacional de Luz Sı´ncrotron (Campinas, Brazil) using Mar-CCD 125 mm detector and radiation at 1.431 A ˚(PAH_1).All data sets were...

Tài liệu Báo cáo khoa học: Control analysis as a tool to understand the formation of the las operon in Lactococcus lactis doc

... CP-pyk(5¢-ACGACTAGTGGATCCATNNNNNAGTTTATTCTTGACANNNNNNNNNNNNNNTGRTATAATNNNNAAGTAATAAAATATTCGGAGGAATTTTGAAATGAATAAACGTGTAAAAATCG-3¢)(N¼ A, T, G, C) and pyk-back (5¢-CTCTACATGCATTTCAACAATAGGGCCTGTC-3¢) for ampliﬁcation of pyk. The resulting PCR prod-ucts, ... (5¢-GGAAGGATCCTTGTGTTTTTCTCCTATAATG-3¢) and downstream to pyk using primer pyk3 (5¢-GGAAGGATCCTTTGTCAATTAATGATCTTAAAAC-3¢) and pyk4(5¢-CTAGTCTAGATGAGCTCCAGAAGCTTCC-3¢) wereampliﬁed. The PCR products ... PKactivity was modulated. At increased PK activity wefound an almost proportional increase in formate and acetate production and a decrease in lactate produc-Fig. 2. Modulation of PFK activity and...

Tài liệu Báo cáo khoa học: "Event Extraction in a Plot Advice Agent" doc

... Introduction In this paper we investigate how features of a textdiscovered via automatic event extraction can beused in both natural language understanding and advice generation in the domain of narrative ... BetweenRater A and B there was a Cronbach’s α statistic of .90 and a Kendall’s τbstatistic of .74. BetweenRater B and C there was a Cronbach’s α statis-tic of .87 and Kendall’s τbstatistic of .67. ... LanguageResources and Evaluation Conference.Harry Halpin, Johanna Moore, and Judy Robertson.2004. Automatic analysis of plot for story rewriting. In In Proceedings of Empirical Methods in NaturalLanguage...

Tài liệu Báo cáo khoa học: "What''''s in a Semantic Network?" pptx

... represented as: ANIMALS 2-LE MAMMALS PERSONS DOGS T GEORGE1 In addition, let us assume we know that all instances of 2-LEGGED-ANIMALS have two legs and that all instances of MAMMALS are warm-blooded: ... of a natural language system is that it often has only partial information about the individuals (objects, events, and relations) that are talked about. Unless one assumes that the original ... Thus far in this paper we have introduced two predicates (TYPE and SUBTYPE'), two kinds of elements (individuals and types), and two axioms ( (A. 1) and (A. 2)). We shall name types in...

Tài liệu Báo cáo khoa học: "Contrastive accent in a data-to-speech system" doc

... containing parallel items, and abstracts over these items in both representations. If the resulting representations are unifiable, the two sen- tences stand in a contrast relation and the parallel ... This means that although theoretically appealing, the HOU approach to contrastive accent is less attractive from a computational viewpoint. 3 An alternative solution Fortunately, in data-to-speech ... expressed by (1 )a and b. Since A and B are of the same type, the values of their fields can be compared, showing which pieces of information are contrastive. Figure 1 shows that all the fields of...

Tài liệu Báo cáo khoa học: "Ambiguity resolution in a reductionistic parser" pot

... relevant sentence readings in a compact way. We also compile each grammar rule into a finite state automaton. Each rule automaton can be regarded as a constraint that accepts some readings and ... more in length, one of which is a finite verb, and (ii) a varying number of nominal and adver- bial constructs. Verbs and nominal heads in a fi- nite clause are indicated with a tag written in ... versity of Helsinki, 1991. [Tapanainen, 1992] Past Tapanainen. Jk/irellisiin automaatteihin perustuva luonnollisen kielen j/isennin (A finite state parser of natural lan- guage). Licentiate (pre-doctoral)...

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