... Relational Model Concepts Relational Model Constraints and Relational Database Schemas Update Operations and Dealing with Constraint Violations Relational Model Concepts The relational Model ... by the theory of relations We review the essentials of the relational approach in this chapter Relational Model Concepts The model was first proposed by Dr E.F Codd of IBM in 1970 in the ... Relational Model for Large Shared Data Banks," Communications of the ACM, June 1970 The above paper caused a major revolution in the field of Database management and earned Ted Codd the coveted...
Ngày tải lên: 12/05/2014, 11:55
... English and its Vietnamese equivalents? - What are the pragmatic features of the adjective Warm in CHAPTER LITERATURE REVIEW AND THEORETICAL English and its Vietnamese equivalents? 1.5 SCOPE OF THE ... works and their Vietnamese equivalents, examines how they are used and then describes them Warm-hearted AP 3.3.3 RELIABILITY AND VALIDITY Adverb +Warm Warm and + As +Warm+ as + Noun Reliability and ... English and as temperature, weather, emotion, idioms its equivalents in Vietnamese 1.6 ORGANIZATION OF THE STUDY 2.2 THEORETICAL BACKGROUND The thesis includes five main chapters, references and...
Ngày tải lên: 26/11/2013, 13:21
Tài liệu Báo cáo khoa học: Inorganic pyrophosphatase in the roundworm Ascaris and its role in the development and molting process of the larval stage parasites doc
... staining), and that the inhibition of PPasecatalyzed PPi hydrolysis by these inhibitors, is likely to prevent the synthesis of the new cuticle from the hypodermis and/ or ecdysis of the old cuticle ... PPases and thus is the largest among the Family I soluble PPases stored in the current protein database This is largely due to a longer N-terminal region compared with other PPases (Fig 1) The membrane-bound ... parasites and their soluble extracts used in the assay system We observed that during in vitro cultivation, the L3 could not develop and molt to L4 in the presence of inhibitor, even at the end when the...
Ngày tải lên: 20/02/2014, 11:20
Báo cáo khoa học: Molecular and functional characterization of a novel splice variant of ANKHD1 that lacks the KH domain and its role in cell survival and apoptosis docx
... Expression and biochemical characterization of VBARP The predicted sizes of the proteins encoded by VBARP-L and VBARP-S are 69 and 49 kDa, respectively To test this, C-terminal V5-tagged VBARP-L and ... the respective plasmid used on the top and the markers are labeled on the left Arrows indicate specific gene products translated product Furthermore, VBARP-S exhibited protein products of 49 and ... were synthesized and purified using the Qiagen siRNA Tool Kit Based on the initial results, siRNA spanning nucleotides 143–154 (from the ATG) was identified that blocked the VBARP RNA synthesis...
Ngày tải lên: 07/03/2014, 21:20
The Chignecto Isthmus And Its First Settlers pdf
... privileges to the said premises appertaining and all the profits thereof with the right, title and interest in Law and Equity, to have and to hold the said acre of land, to him the said John Wesly and ... Missiquash became the parish of Westmoreland, in the county of Westmoreland Fort Cumberland was in this district, and between Fort Cumberland and the old township of Cumberland, and the still older ... Fort," and efforts have been made to enclose the grounds and make them more presentable The Acadians were still to be dealt with Whether they should remain in the country and in the possession of their...
Ngày tải lên: 16/03/2014, 15:20
THE AESTHETIC REVOLUTION AND ITS OUTCOMES doc
... says that aesthetic experience will bear the edifice of the art of the beautiful and of the art of living The entire question of the ‘politics of aesthetics’—in other words, of the aesthetic regime ... understand the principle of its efficacy, and of its various and antithetical mutations How can the notion of ‘aesthetics’ as a specific experience lead at once to the idea of a pure world of art and ... reveal the same basic emplotment of an and, the same knot binding together autonomy and heteronomy Understanding the ‘politics’ proper to the aesthetic regime of art means understanding the way...
Ngày tải lên: 16/03/2014, 18:20
the economic crisis and its consequences for the environment ppt
Ngày tải lên: 18/03/2014, 15:22
The Expedition of the Donner Party and its Tragic Fate pptx
... The younger ones and the girls passed theirs in the saddle They would scatter in groups over the plains to investigate distant objects, then race back, and with song and banter join husband and ... force, drove them onward, leaving the women and children to await their return Messrs Eddy and Graves got their animals to water on the night of the twelfth, and the others later As soon as the poor ... the fire and laid their attenuated forms upon them The flames leaped up the trunk, and burned off dead boughs so that they dropped on the snow about them, but the unfortunates were too weak and...
Ngày tải lên: 31/03/2014, 13:20
Alexey a zaslavsky, one property of the jerabek hyperbola and its corollaries
... B2 , C2 are the reflections of this point in the midpoints of the sides of ABC Therefore, the triangles ABC and A2 B2 C2 are centrosymmetric B2 A2 A1 C B1 C2 A B C1 Fig Note also that the center ... ONE PROPERTY OF THE JERABEK HYPERBOLA AND ITS COROLLARIES 55 Statement Let P be a point on the Euler line of ABC, A1 B1 C1 be the circumcevian triangle of P , and A2 , B2 , C2 be the reflections ... Proof It suffices to apply homothety of center the centroid of ABC and coefficient − to the configuration of the previous claim Statement Let O, I be the circumcenter and incenter of ABC An arbitrary...
Ngày tải lên: 18/07/2014, 22:48
Báo cáo toán học: "The cube polynomial and its derivatives: the case of median graphs" pps
... implies that the graph ∂ G is well-defined.) For instance, ∂ (Pn 2Pm ) is the disjoint union of n − copies of the path Pm and m − copies of the path Pn The reason for calling the graph ∂ G the derivation” ... graphs G and H is the graph with vertex set V (G) × V (H) in which the vertex (a, x) is adjacent to the vertex (b, y) whenever ab ∈ E(G) and x = y, or a = b and xy ∈ E(H) It is easy to see that the ... ui be the corresponding vertex in G∗ Then G∗ is obtained from the disjoint union of G∗ and G∗ , where for each u of G0 the i vertices u1 and u2 are joined by an edge (Note that, since the cover...
Ngày tải lên: 07/08/2014, 07:21
Báo cáo lâm nghiệp: "Evaluation of changes in the landscape management and its influence on animal migration in the vicinity of the D1 motorway in Central Bohemia" ppsx
... land use further fragment agriculture and forest land and increase its separation effect Lipský (2000) stated that overall changes in the landscape, and especially in the manner of land use, are ... When looking at the accelerating biological and cultural degradation of landscapes, there is a need for better understanding of the mutual interaction between the landscape and the urbanization ... its functional properties Any changes in a landscape structure (in space and time) change the course energy-material flows in the landscape, affect the permeability and habitability of the landscape,...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: "Horizontal structure of forest stands on permanent research plots in the Krkonoše Mts. and its development" ppsx
... recruits in the transects of PRP and the three central curves illustrate the Kfunction for the random spatial distribution of trees and its 95% reliability interval When the black line of the tree ... gradient and southwestern exposure It is mostly rather an open spruce stand with pronounced spatial and age differentiation From the aspect of the small forest development cycle the stand is at the ... pollution and forest management) on the condition and development of the Krkonoše Mts forests The numbers and distribution of natural and combined regeneration recruits are mostly sufficient from the...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp:" Variation in the decay resistance and its relationship with other wood characteristics in old Scots pines" ppsx
... calculate the overall means and standard deviations (sd) for the sapwood and the outer and the inner heartwood The coefficients of variation (CV%) were used to describe the variation among the trees ... puteana, and concluded that the mass loss in the periphery part of the heartwood was lower than that in the centre of the heartwood The other marked difference between the outer and the inner ... in the average mass loss and in the average concentration of heartwood phenolics between the sapwood and the outer and inner heartwood, as well as by the dependence between the mass loss and the...
Ngày tải lên: 08/08/2014, 01:21
Báo cáo khoa học: "Foliation of spruce in the Giant Mts. and its coherence with growth and climate over the last 100 years" pdf
... emphasises the varying hardness of the wooden tissue and the needle traces become visible as small “pins” (figure 2) They are arranged in diagonal lines according to the phyllotaxis of the needles The ... Variation of foliation and growth variables Boxes represent values between the lower and the upper quartile including the median, while the whiskers show the range (min–max) Dots (°) and asterisks (*) ... more and more by proventive shoots, competition for water and nutrients lowers the supply of regularly formed shoots and therefore results in a lower number of needle primordia On the other hand,...
Ngày tải lên: 08/08/2014, 14:21
báo cáo khoa học: "Analysis of the expression pattern of the BCL11B gene and its relatives in patients with T-cell acute lymphoblastic leukemia" doc
... family genes of the mitochondrial pathway, and the TRAIL (TNFSF10) gene of the death receptor signaling pathway [22], furthermore, in our previous study, the genes (SPP1 and CREBBP) of the TGF-b pathway ... 0.995) The amplification efficiencies of BCL2L1 and the b2M control gene were 95.30% and 95.16%, respectively, and the melting curves are shown in Figure 2C PCR products from the b2M control gene and ... conception and design laboratory study XH, SHC, QS, LJY, and BL performed the laboratory technique process and the laboratory analyses LYZ, SXG and XD were responsible of the patient’s treatment and...
Ngày tải lên: 10/08/2014, 22:21
Báo cáo y học: "The EVIDEM framework and its usefulness for priority setting across a broad range of health interventions" docx
... interventions that target the children than interventions targeting the elderly In this way the criteria and their weights were the same for every health intervention, and ranking consistency was ... the DCE results, we calculated the interventions’ probability of being selected, by Page of combining the performance of interventions on each criterion and the importance of that criterion The ... across contexts and over time, but does not solve the more fundamental problem that views of stakeholders, and therefore their expressed weights, may diverge This is acknowledged by the ‘Accountability...
Ngày tải lên: 13/08/2014, 11:22
Báo cáo y học: "orrection: The EVIDEM framework and its usefulness for priority setting across a broad range of health intervention" pdf
... Health Systems Research and Education (NICHE), Department of Primary and Community Care, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands Health Intervention and Technology Assessment ... from DCE may improve the consistency of priority setting across contexts and over time, but does not solve the more fundamental problem that views of stakeholders, and therefore their expressed weights, ... an object for further research We regret any inconvenience that these corrections might have caused References Youngkong, S., N Tromp, and D Chitama, The EVIDEM framework and its usefulness for...
Ngày tải lên: 13/08/2014, 11:22
Báo cáo y học: "The biopsychosocial model and hypothyroidism" pot
... subsequent to the loss of a limb)[13] developed the neuromatrix model [3,14] of pain This model builds upon the gate control model and represents one of the more recent ideas in pain theory The neuromatrix ... represents the evolution of the biomedical model, and aligns favourably with recent ideas in pain theory and pathophysiology [3] Early theories concerning pain were consistent with the specificity theory, ... [3,11,14] The biopsychosocial model has emerged over the past two decades and has sought to expand upon disease paradigms and complement pain models It states that in order to understand and manage...
Ngày tải lên: 13/08/2014, 13:22
Báo cáo y học: "The organisation of the stress response, and its relevance to chiropractors: a commentary" pdf
... activating system to the sensory cortex [30,31] The sensory cortex then directs information directly to the amygdala, or via the hippocampus and then to the amygdala [32] The hippocampus does ... at the hypothalamus, pituitary gland or gonads There are close relations with the sustained activity of the end-product of the HPA axis and suppressed steroid sex and growth hormones [57] The ... anxiety and depression, malnutrition, eating disorders and chronic excessive exercise, and the hypogonadism of the Cushing syndrome [77] On the other hand, estrogen directly stimulates the CRH...
Ngày tải lên: 13/08/2014, 14:20
samuelson - the great inflation and its aftermath; the past and future of american affluence (2008)
... about themselves and their society; h o w they voted and the nature of their politics; h o w businesses operated and treated their workers; and h o w the American economy was con nected with the ... explanation and background to make the story accessible to the specialist and the generalist, the y o u n g and the old S o m e o n e need not have lived through all these events to grasp their significance ... September 11, 2001; and the two wars in Iraq (1991 and 2003) Looking abroad, these scholars might include other developments: the rise of Japan as THE GREAT INFLATION AND ITS AFTERMATH a major economic...
Ngày tải lên: 01/11/2014, 21:43