allelopathy and its influence in soil systems

... vegetation in uences the soil beneath it by releasing carbon sources, which feed soil biota and increase soil organic matter, and by building and stabilizing soil structure A study in West Africa ... productive and more sustainable soil systems In this chapter, after highlighting some of the problems underlying declining soil fertility in SSA, the region where we have been working, we briefly ... sustainability of land-use systems q 2006 by Taylor & Francis Group, LLC Biological Approaches to Sustainable Soil Systems 262 Enhance the research and training capacity of national institutions in...

Ngày tải lên: 11/08/2014, 17:21

... personal influence, ethnic influence, family and household, and situational influences Engel (1995) shows the scope of individual and environmental influences and this distinction is used in this ... gathering technique, in which the interviewer directs the interaction and inquiry in a very structured or unstructured manner, depending on the interview’s purpose (Denzin and Lincoln 1994) In consumer ... play in distinguishing between different classes and reinforcing identity within a certain class Marketing segmentation is also often based on marketing products to a specific social class by using...

Ngày tải lên: 04/11/2013, 10:15

Ngày tải lên: 07/11/2013, 09:15

Ngày tải lên: 14/12/2013, 12:15

... within its service area A SGSN communicates with GGSNs and SGSNs in its own PLMN using the Gn interface and GGSNs in other PLMNs via the Gp interface Interfaces also exist between an SGSN and ... NT PC = and Npilot = 4, totalling 10 bits in a slot, and corresponding to k = SF = 512 We see that in this situation there are only four bits out of 10 bits carrying data, corresponding to an ... selection, and may receive point-to-multipoint multicast (PTMM) and point-to-point multipoint group call (PTM-G) data The SGSN may send data or signalling information to an MS The MM state in the...

Ngày tải lên: 23/12/2013, 17:15

... marine fishing was concerned, and to fill any remaining information gaps participatory rural appraisal (PRA) using techniques such as semi-structured interviewing, wealth ranking, mapping, and ... Trivandrum, India (1) Fish Marketing Systems. qxd 8/8/03 5:55 pm Page Introduction Other related projects funded by DFID in India through PHFRP included: G G ‘Changing Fish Utilization and its ... with and recover from shocks and maintain or enhance its capabilities and assets both now and in the future, while not undermining the natural resource base (Carney, 1998) (See also Ashley and...

Ngày tải lên: 07/03/2014, 00:20

Ngày tải lên: 08/03/2014, 18:20

... e n t e n c e s and f r a g m e n t s The c l o s e ness of the a v e r a g e of m e s s a g e s i n T-T and p a r s e d and uonparsed inputs in H C is striking Table (the meaning of abbreviations ... be loaded, the other infot~nation about decks (details in [8]) In the computational mode (H-C) the ship data was in ~he computer and the l i s t of cargo t o be loaded was handed Co the subjects, ... a t a coming from t h e a c t u a l e n v i r o o m e n t of loading U.S navy ships by a group in San Diego, California In the F-F and T-T e x p e r i m e n t s , ~n,~o persons were involved...

Ngày tải lên: 17/03/2014, 19:20

... arranging for polling places, recruiting and training poll workers, designing ballots, and preparing and testing voting equipment for use in casting and tabulating votes Election day activities include ... to assist EAC in establishing voting system standards and performing its responsibilities, including standards and responsibilities involving the security and reliability of voting systems: • The ... producing printed records for election auditing, and meeting vote counting error rates);16 upgrading systems in general; improving the administration of elections; or educating voters and training...

Ngày tải lên: 23/03/2014, 03:20

... very similar, and differ only, in some cases, in the citation form of the lexical element being inserted For example, specific prepositions or infinitival markers are inserted The definitions of ... case, since case does not exist anymore in French, except for some traces in the pronominal system Determining case for pronouns is a trivial task in French that does not require a machine-learned ... of the differences are in feature extraction and in the linguistic operations relying on the information provided by the models We discuss these differences in the following sections etre (— Verb'...

Ngày tải lên: 31/03/2014, 20:20

... the extraordinary size of the systems, (2) the nonlinearity in the systems, (3) the dynamic interactions within the systems, and (4) the complexity of component modeling These complicating factors ... systems Indeed, the problem of determining stability regions (regions of attraction) of nonlinear dynamical systems is of fundamental importance for many disciplines in engineering and in the ... in most parts of the Western Interconnection in the United States, Hydro-Québec, the interfaces between the Ontario/New York area and the Manitoba/ Minnesota area, and in certain parts of China...

Ngày tải lên: 30/05/2014, 23:38

... k-dimensional fast subsystem obtained in the singular limit ε → of (1) and known as the layer problem, and the one-dimensional slow subsystem obtained in the singular limit ε → of (2) and known as the reduced ... where such intrinsic transient dynamics might play a role in forming new attractors In many physiological models, we are interested in the onset of oscillations, i.e in the existence and criticality ... bifurcation involving both fast and slow variables In a range of biophysical systems, including HH-type neuronal models such as system (9) and a variety of calcium models such as those in [32],...

Ngày tải lên: 20/06/2014, 23:20

... emergency care systems into three groups: underdeveloped, developing, and mature Each group measures certain systemic indicators of EM, including its status as a specialty, the amount of training that ... to placing an ED in each, it still limits the ways that EDs and emergency care systems can be described to just three and implies an inherent categorization favoring the “mature” system In recent ... Francisco, and Harvard University Dr Camargo is founder and ongoing Director of EMNet Competing interests The authors declare that they have no competing interests NEDI-International Country Coordinators...

Ngày tải lên: 21/06/2014, 02:20

... 5.93 The training material comes from male and female speakers and consists of 6664 clean tokens, after removing unusable tokens identified during postprocessing The tokens from the remaining speakers ... that contains speech in one channel and noise in the other channel Each of the test sets contains 16 instances of each of the 24 consonants, giving a total of 2688 tokens in the combined test ... Bilbao, Spain, and also at ı the 6th International Symposium on Chinese Spoken Language Processing, ISCSLP ’08, Kunming, China References [1] H M Teager and S M Teager, Evidence for nonlinear sound...

Ngày tải lên: 21/06/2014, 20:20

... increased slowly, reaching a value of 38% around months The increase and subsequent decline in estimates of p2 for WOK between about and months of age was absent in PH, suggesting that sampling ... bars: Wokalup) and mean weights (•: Polled Hereford, ◦: Wokalup) for individual ages, in weekly intervals variation in gain between birth and the first post-natal weight and an increased chance ... determined by results of the earlier analyses The aim in doing so was to determine the minimum order of fit required for each random factor, and thus determine the most parsimonious model describing...

Ngày tải lên: 09/08/2014, 18:21

... (pRL100169-171) and rhiI (pRL100164), previously described as rhizosphere-induced genes [7] and the gene for autoinducer synthesis protein CinI (RL3378) involved in coordinating quorum-sensing regulation and ... Zorreguieta A, Downie JA: The cin and rai quorum-sensing regulatory systems in Rhizobium leguminosarum are coordinated by ExpR and CinS, a small regulatory protein coexpressed with CinI J Bacteriol 2009, ... accessory protein CoxG (pRL80021) Nearby are genes for proteins which may be involved in maturation of this complex: proteins involved in molybdopterin biosynthesis (pRL80034 and pRL80033 MoaA and MoeA-like...

Ngày tải lên: 09/08/2014, 23:20

... from the winter barleys, which is exactly the case for the Spanish landraces In midlatitudinal regions, including North Africa, southern Europe, Nepal, China, and Japan, both spring and winter barley ... have already pointed out the prevalence of the dominant allele in spring cultivars, and its relative scarcity in winter cultivars [21,31] In the present study, exclusively done with winter types, ... by its influence on key agronomic traits It was identified originally as a short-photoperiod quantitative trait locus in winter × spring barley crosses [1,35] Its effect is especially large in...

Ngày tải lên: 11/08/2014, 11:21

... destruction via the resulting increase in autophagy, thereby maintaining sufficient O2 supply to the remaining mitochondrial population and thus minimizing ROS production Correspondingly, PGC-1α activity ... to basic and clinical physiology in a number of fields, including respiratory, cardiovascular, and fetal medicine; yet these mechanisms, which may involve enhanced function of the remaining mitochondria ... during an exercise challenge, is a tempting solution to the problem of maintaining energy homeostasis in hypoxic skeletal muscle Indeed, a number of genes encoding glycolytic enzymes, including...

Ngày tải lên: 11/08/2014, 12:20

... weighted image (A) and STIR sequence (B) showing left thyroid tumour extending directly into the left internal Figure jugular vein Coronal T2 weighted image (A) and STIR sequence (B) showing left thyroid ... tumour extending directly into the left internal jugular vein vein (IJV) revealed thyroid follicular cells similar to those seen in the first FNA The cells were positive for thyroglobulin and thyroid ... disease She is still on routine follow-up in the oncology clinic Discussion Invasion of the parotid gland and the great cervical veins from a thyroid cancer is extremely rare, and is mostly detected...

Ngày tải lên: 11/08/2014, 21:22