... 82 bond length. Also, the pKa of the amino nitrogen is increased by electron-donating substituents. The variations of the three properties are closely tied together. Hammett σ constants ... Correlation of the bond length d(C-N) with the Hammett σ constants of the substituents. The para substituents show a much better correlation with d(C-N) (R 2 = 0.9454) than do the meta substituents ... Correlation of the pKa value with the Hammett σ constants of the substituents. Table 3 lists correlation coefficients between Hammett σ constants and bond length C-N, negative charge on atom...
Ngày tải lên: 23/07/2014, 13:21
Ngày tải lên: 13/08/2014, 21:21
the johns hopkins university press the medicalization of society on the transformation of human conditions into treatable disorders apr 2007
... the next one. For those who stay the course there is the promise of a greater understanding of the contours of the medicalization process. The earliest critiques argued that the medicalization ... medical colonization. Here the cultural or pro- fessional influence of medical authority is critical. One way or another, the medical profession and the expansion of medical jurisdiction were prime ... 21218-4363 www.press.jhu.edu Library of Congress Cataloging-in-Publication Data Conrad, Peter, 1945– The medicalization of society : on the transformation of human conditions into treatable disorders / Peter Conrad. p....
Ngày tải lên: 11/06/2014, 12:48
Báo cáo y học: "The cost of relapse and the predictors of relapse in the treatment of schizophrenia" potx
Ngày tải lên: 11/08/2014, 17:20
the impact of globalization on the agricultural sectors of east and central pptx
Ngày tải lên: 18/03/2014, 12:20
báo cáo khoa học: " The production of consumption: addressing the impact of mineral mining on tuberculosis in southern Africa" pdf
Ngày tải lên: 11/08/2014, 14:21
báo cáo khoa học: " The impact of bisphosphonates on the osteoblast proliferation and Collagen gene expression in vitro" ppsx
Ngày tải lên: 11/08/2014, 20:20
Báo cáo y học: "The impact of the severity of sepsis on the risk of hypoglycaemia and glycaemic variability" ppt
Ngày tải lên: 13/08/2014, 11:23
Air Pollution and the Health of New Yorkers: The Impact of Fine Particles and Ozone pot
... reduce their quality of life. Concentration-response functions. Estimated concentration response functions vary among scientific studies because: Concentration-response functions are based on an ... Air Pollution and the Health of New Yorkers: The Impact of Fine Particles and Ozone I 4 15 I Air Pollution and the Health of New Yorkers: The Impact of Fine Particles and Ozone Results The main ... threshold. Air Pollution and the Health of New Yorkers: The Impact of Fine Particles and Ozone Air Pollution and the Health of New Yorkers: The Impact of Fine Particles and Ozone I 38 Laden F,...
Ngày tải lên: 06/03/2014, 16:20
The Effect of Aesthetic on the Usability of Data Visualization pdf
... International Conference Information Visualization (IV'07) 0-7695-2900-3/07 $20.00 â 2007 The Effect of Aesthetic on the Usability of Data Visualization Nick Cawthon and Andrew Vande Moere The ... influence on task effectiveness, as there seems less concern for the experiential nature of aesthetic judgment. Other research projects demonstrate the advantages of aesthetic design on interactive ... and part of a larger study on the role of aesthetic within data visualization [16]. The online survey method was utilized for the following reasons: ã Validation - A large number of participants...
Ngày tải lên: 07/03/2014, 17:20
a systematic review of the research literature on the use of phonics in the teaching of reading and spelling
... Review of the Research Literature on the Use of Phonics in the Teaching of Reading and Spelling Carole J. Torgerson * Greg Brooks ** Jill Hall * * University of York ** University of ... Details of instructional time and of instruction received by the intervention groups Author, date Amount of instructional time in experiment Information about what other literacy instruction participants ... comprehension; spelling) Effect size, as calculated by the reviewers (mean of word recognition and word attack measures; also mean of comprehension measures, mean of spelling measures, and synthetic...
Ngày tải lên: 02/06/2014, 09:22
Báo cáo hóa học: " Research Article On the Exponent of Convergence for the Zeros of the Solutions of y Ay By 0" pdf
... f,andSr, f. Suppose that f is a meromorphic function, then the order of growth of the function f and the exponent of convergence of the zeros of f are defined, respectively, as ρ f lim sup r ... this contradicts Lemma 4.6. The same contradiction, with h replaced by h A,arises if conclusion i of Lemma 4.4 holds, and t he proof of the theorem is complete. Acknowledgment The author ... pages doi:10.1155/2010/428936 Research Article On the Exponent of Convergence for the Zeros of the Solutions of y Ay By 0 Abdullah Alotaibi Department of Mathematics, King Abdulaziz University,...
Ngày tải lên: 21/06/2014, 07:20
Báo cáo vật lý: "Influence of the Silica-to-Surfactant Ratio and the pH of Synthesis on the Characteristics of Mesoporous SBA-15" ppt
... Figure 4. In the case of these different silica contents, the XRD patterns show 2 reflections in the 2θ range of 1 o –3 o . The reflections were due to the ordered hexagonal array of parallel ... Si-OH 2 + . 22 The hydrated PEO was protonated or H + interacted to the EO part through the electrostatic interaction (S 0 H + ) upon the addition of HCl. The hydrophilic region of the surfactant ... amounts of C1 – ions. Therefore, for the partial dehydration of PEO units, the volume of the hydrophilic part of the micelle decreases. This leads to an increase in the hydrophobic region or...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "THE EFFECT OF ADDITIVES ON THE SIZE OF Fe3O4 PARTICLES" ppt
... reduce the surface energy of the particles therefore making the resultant particles more stable. 4. CONCLUSIONS The size, size distribution and to some extent the morphology of the as- formed ... reaction via ionic bonds [19,20]. Strong ionic repulsion forces between complexes prevent close contact of magnetite particles thus affording controls on the particles' sizes [21]. Triton ... strong influence on the shape of as-formed particles by governing the growth rate of various crystallographic surfaces and create orientations in crystals formation [30]. With the exception of...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo khoa học: "The role of Bcl-xL and nuclear factor-kB in the effect of taxol on the viability of dendritic cells" ppsx
... (Fig. 2). However, the taxol concentration used was critical for the level of cytokine production; 1 μg/ml of taxol induced only marginal production of these cytokines. These results suggest ... 3). The protein expression levels were calculated in comparison to the level of β-actin (internal control). The results suggest that taxol enhances DC viability via the increase of the anti-apoptotic ... comparison to ContDCs (Fig. 4A). Furthermore, TPCK, which is an inhibitor of the NF-κB pathway, significantly decreased the viability of TaxolDCs, but not that of ContDCs (Fig. 4B). These results...
Ngày tải lên: 07/08/2014, 23:22
Báo cáo khoa học: " The effect of sucrose on the development of hybrid walnut microcuttings (Juglans nigra x Juglans regia). Consequences on their survival during acclimatization" ppt
... the roots and the callus of the plantlets cultured on the medium with a concentra- tion of 10 g·l -1 of sucrose and higher. The shoots of the clone M41 cultured on ... during the root-devel- opment phase. Therefore, the survival of plantlets depends on the root system and on the stage of development of the aerial struc- ture. The development ... by the enzyme method described by Boehringer (1984). Data analysis The effects of the different concentrations of sucrose on the morphology of rooted plantlets for each clone...
Ngày tải lên: 08/08/2014, 19:21
The signals of FGFs on the neurogenesis of embryonic stem cells ppsx
Ngày tải lên: 10/08/2014, 05:21
The solutions for valuation in the equitization of state enterprises, the case of Vietinbank Insurance One Member limited Company
Ngày tải lên: 17/03/2015, 13:26
Impact of broadband on the economy pdf
... effects, the economic impact of broadband increases exponentially with the penetration of the technology. See further references in Sections 2.2 and 8.1. Impact of broadband on the economy ii ... impact of broadband on the economy is minimal due to the “critical mass” concept. According to the “return to scale” theory, the impact of telecommunications infrastructure on the economic ... Republic: the contribution of broadband to employment growth. ã Arab States: impact of broadband on economic growth. ã Saudi Arabia: the impact of broadband on employment. ã India: the impact of...
Ngày tải lên: 31/03/2014, 05:21