describe interactions between biotic and abiotic factors in an ecosystem

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Ngày tải lên: 13/08/2014, 13:20

... the demographic data. Mean age was 68 years old (quartile range: 59-77). The major ethnicities were European American (44%), African American (37%) and Hispanic Ameri- can (11%). Table 1. ... OAB increased with age: 49% in men aged 40-49 years to 79% in men aged 70-79 years (p<0.001, OR=3.9). Interestingly, there was a statistically signif- icant association between OAB and hepatitis ... detection and treat- ment initiation. The OAB-V8 questionnaire is a possi- ble effective and fast screening tool. Our study also examined the risk factors for OA B i n m en. We found that OAB increased...

Ngày tải lên: 25/10/2012, 11:35

... homology independent interactions. Trans Genet 139, 815–833. 18 Hendrickson JE & Sakonju S (1995) Cis and trans inter- actions between the iab regulatory regions and abdom- inal-A and Abdominal-B. ... chro- matin domains, similarly to the situation found in the chicken beta-globin cluster. In this minireview we survey mechanisms and factors that may be involved in mediating specific interactions between ... FEBS 3259 L. Sipos and H. Gyurkovics Long-distance interactions in Abd-B REVIEW ARTICLE Long-distance interactions between enhancers and promoters The case of the Abd-B domain of the Drosophila...

Ngày tải lên: 20/02/2014, 01:20

... by Ichino and M aggi (2000) and Mas and Moretti (2006). Ic hino and M aggi (2000) examine shirking behav ior within a large banking firm, and show that a worke r’s shirking beha vior significant ... Kling and Liebman, (2001); Edin, Fredriksson and Aslund (2003); Oreopoulos (2003); Jacob (2004); Weinberg, Reagan and Yankow (2004), Gould, Lavy and Pa serman (2004a and 2004b). 2 3forthefixed-effects ... The Institute for the Study of Labor (IZA) in Bonn is a local and virtual international research center and a place of communication between science, politics and business. IZA is an independent...

Ngày tải lên: 22/02/2014, 09:20

... following nutrients: iron, zinc, niacin, thiamin, vitamins B 6 and B 12 . Statistical analysis consisted of descriptive analysis and chi-square test, Fisher’s exact test and ANOVA to determine ... home and shopping for foodstus [22]. us, we can see the importance of the care provided by nursing sta, in providing support in meeting mobility needs and principally those related to eating, ... performance in the ability to perform activities of daily living and greater dependence on care, including meals and purchase of food [19]. e results of the Health, Welfare and Aging in Latin...

Ngày tải lên: 05/03/2014, 21:20

... studies in Arabidopsis found crosstalk between auxin and other plant hormones [21–24]. Our study also shows that genes involved in cytokinin (e.g. cytokinin-O- glucosyltransferase, cytokinin dehydrogenase, ... processes, including metabolism, transcription, signal transduction, and transport (Fig. 1B), indicating that auxin-responsive genes perform crucial functions in various aspects of plant growth and ... reveals diverse roles of auxin-responsive genes during reproductive development and abiotic stress in rice Mukesh Jain 1 and Jitendra P. Khurana 2 1 National Institute of Plant Genome Research (NIPGR),...

Ngày tải lên: 07/03/2014, 01:20

... evidence suggesting that a-synuclein is a metal binding protein is intriguing and is likely to result in a robust, new research direction in the synuclein field. References 1 Prusiner SB (1982) Novel proteinaceous ... histidine and lysine res- idues are involved in the co-ordination [63]. Although these studies provide interesting insights into the co-ordination of Cu by these fragments, they do not provide any ... of LBs, containing a-synuclein fibrils, in the substantia nigra and other brain regions are characteristic of the disease [10,11]. Inclusions containing a-synuclein are also found in dementia with...

Ngày tải lên: 07/03/2014, 10:20

... space and peptidoglycan by a DNA translocator comprising pilin-like (PilA4) proteins. PilW is an inner and outer membrane protein that may be essential for assembly, stabilization and pilot- ing ... individually essential for transfor- mation and piliation [7,8]. In contrast to PilQ and PilA4, an individual role of PilM, PilN, PilO and PilW in natural transformation and piliation cannot be deduced from ... 2006 FEBS N-terminal domain of PilQ, and the colocalization of PilQ with PilW in inner and outer membranes and the results from the pilW and pilQ mutant studies, it is tempting to speculate...

Ngày tải lên: 07/03/2014, 12:20

... easy, and the kappa was 100%. We then annotated a total of 42 conversations for training and 13 for testing. Different labelers an- notated the training and test sets; none of the au- thors were involved ... LIBSVM (Chang and Lin, 2001), a support vector machine classifier trained using an RBF kernel. Table 3 presents results for 3 Precision and recall are of course 54.59% and 100%. 106 Proceedings of ... conversations; an initial study shows promising performance even on more complex multi-party meetings. 1 Introduction and Background This paper describes an algorithm for disambiguat- ing the generic and...

Ngày tải lên: 08/03/2014, 03:20

... not bind the same single binding site, rather that I-AniI appears to contain two binding sites. Keywords: Aspergillus nidulans; homing endonuclease; RNA binding protein; DNA sliding; RNA splicing. Group ... and its binding affinity is not altered by the presence of DNA in the DNA binding site. Interestingly, when 3 n M RNA and 10 n M DNA were added simultaneously to a limiting amount of protein in TK8 ... introns: self-splicing and mobility. Annu. Rev. Genet. 24, 363–385. 10. Belfort, M., Reaban, M.E., Coetzee, T. & Dalgaard, J.Z. (1995) Prokaryotic introns and inteins: a panoply of form and...

Ngày tải lên: 17/03/2014, 10:20

... (2003) European Prospective Investigation into Cancer and Nutrition. Dietary fibre in food and protection against colorectal cancer in the European Prospective Investigation into Cancer and Nutrition ... hormones in the UK in 2010 S42 DM Parkin 11. Cancers attributable to infection in the UK in 2010 S49 DM Parkin 12. Cancers in 2010 attributable to ionising radiation exposure in the UK S57 DM Parkin and ... –S89 Tominaga S, Kuroishi T (1997) An ecological study on diet/nutrition and cancer in Japan. Int J Cancer 10(Suppl): 2–6 Tsugane S (2005) Salt, salted food intake, and risk of gastric cancer: epidemiologic...

Ngày tải lên: 22/03/2014, 16:21

... complex, in which human transthy- retin, human holo-retinol-binding protein and a murine anti-retinol-binding protein Fab are assembled according to a 1 : 2 : 2 stoichiometry. The main interactions, ... polar and apolar, between retinol-binding protein and transthyretin involve the retinol hydroxyl group and a limited number of solvent exposed residues. The relevance of transthyretin residues in ... ring is innermost, the polyene chain is fully extended and the hydroxyl end group is almost solvent exposed, in the region of the loops that con- nect b-strands A and B, C and D and E and F and surround...

Ngày tải lên: 30/03/2014, 02:20

... Differentiation Factors 912 24.6 VEGF and VEGF Receptors 913 24.7 Other VEGF Family Members: Involvement in Angiogenesis and Lymphangiogenesis 914 24.7.1 Angiopoietins and Ties in Angiogenesis and Lymphangiogenesis ... Heidelberg (Neuroanatomy Secretary Heidelberg) and to Dr Andreas Sendtko and the Wiley team for having initiated and promoted the project. Heidelberg and Göttingen September 2005 Klaus Unsicker and Kerstin ... function and fertility. An increasing body of evidence has led to the proposition that several GFs are important mediators of such communication and crucial in controlling and determining female and...

Ngày tải lên: 03/04/2014, 12:05

... the importance of including significant nonlinear relationships in research models in general, and taking into account the significant nonlinear relationship between A and SN in organizational ... Schumacker, R. E., and Wothke, W. 1998. “A Comparative Review of Interaction and Non-linear Modeling,” in Interaction and Nonlinear Effects in Structural Equation Modeling, R. E. Schumacker and G. A. ... 293-307. Wood, P. K., and Erickson, D. J. 1998. “Estimating Interaction and Nonlinear Effects with SAS,” in Interaction and Nonlinear Effects in Structural Equation Modeling, R. E. Schumacker and G. A. Marcoulides...

Ngày tải lên: 08/04/2014, 18:33