where m is the mass, r is the radius and t is the thickness of the pallet. Complex impedance parameters (i.e. impedance and phase angle parameters) were measured with a computer- controlled Solatron 1260 impedance analyzer. The samples were sandwiched between platinum electrodes which served as non-blocking electrodes in a frequency range from 0.1 to 10 6
than it might be expected to this structure. At the same time, it is important that luminescence intensity of these samples is lower if compared to intensity for other sam- ples shown in this Figure. As we go from spectrum 1 to spectrum 4 in Fig. 7, the contribution of monoclinic phase decreases. These results mean that other factors, not only crystal structure, significantly determine luminescence be- havior of the samples under study. Thus, we supposed that as shown in Figs. 6 and 7, curves 2–4, spectral trans- formations are mainly related to luminescence behavior of tetragonal phase, especially to role of Ca 2+ cations, as their concentration increases by 2–3 times when gone from x = 0.1 to 0.2 (see the “Morphology and Chemical Element analysis” section).
number of peaks at LT is consistent with an asymmetric phase 共 point 1 兲 , but the data show a strong relation between the LT and RT structures, in that all the 共4 ⫻ 1兲 lines appear in 共8 ⫻ 2兲 spectra, although blueshifted and more intense, as discussed above. This might be explained by noting that all but one of these lines are of A ⬘ symmetry 共vibrations or- thogonal to the chain direction兲, and postulating that the ef- fect of the structural asymmetry will appear mainly in vibra- tions in the shear distortion direction, i.e., along the chains. This might also help to explain, within this model, the nar- row linewidths observed for some of the A ⬘ modes at RT, which appear to contradict point 3: e.g., the strongest low energy phonon mode at 51.8± 0.6 cm −1 is of A ⬘ symmetry
1273–1523 K for 8 h in vacuum. The samples were then densiﬁed by pressure-assisted sintering at 1223–1473 K for 1 h at a pressure of 30 MPa in vacuum. The density of all the sintered samples was greater than 95% of the theoretical density. X-ray analysis showed that all the sintered samples consisted entirely of the hexagonal Chevrel phase. The value of the lattice parameters a and c increased with the Cu content. Measurement of the Seebeck coeﬃcient, electrical resistivity, and thermal conductivity was carried out on single-phase sintered Cu x Mo 6 S 8
The magnetic susceptibility (T) obtained for polycrystalline samples of 1 and 2 between 2 and 300 K are shown collectively in Figure 2a. At first glance, 1 appears to be paramagnetic without any anomalies that would have indicated a magnetic phase transition whereas 2 displays a broad maximum at 6 K, a feature typical of other quasi-2D coordination polymers including Cu(ClO 4 ) 2 (pyz) 2 11 and
Additional studies found no differences in emotion perception under alcohol- intoxication, for example Walter et al (2011) found no effect of low dose alcohol (0.4g/kg) on the detection and interpretation of angry and happy facial expressions. In this study participants were asked to indicate when they could identify the emotion gradually presented from a neutral expression. Further research using a similar threshold detection paradigm, demonstrated comparable results across happy, angry, fearful, disgusted and neutral emotional expression, whilst under a higher alcohol dose (0.4 and 0.8g/kg) (Kamboj, 2013). Additionally, Kano et al (2003) found no significant difference in a discrimination task of sad, surprised and angry morphed facial expressions from a neutral expression, with a number of varying alcohol dosages (0, 0.14, 0.28, 0.56 g/kg).
These multiplets arise from the vectorial 10 representation of SO(10). These coloured states generate proton decay from dimension five operators, and therefore must be sufficiently heavy to be in agreement with the proton lifetime limits. An important benefit of the SU421 symmetry breaking pattern is that these colour triplets may be projected out by the Generalised GSO (GGSO) projections , and need not be present in the low energy spectrum. The string doublet–triplet mechanism works in all models that include the symmetry breaking pattern SO(10) → SO(6) × SO(4). The HSPSM heavy Higgs states, which break SU (4) × SU(2) R → SU (3) C × U (1) Y ,
The K + cation caps one face of the coordination octahedron of the anion to give a Co1 K1 distance of 3.6502 (14) A ˚ . Its sevenfold coordination (Fig. 2) is completed by two non- coordinating O atoms associated with two further cobaltate anions and by two water molecules. A complex arrangement of K—O bonds connects the ions in layers parallel to (100), as shown schematically in Fig. 3. The connectivity creates, as the sub-unit, rings of four anions with four bridging K + ions, two of which are seen in the case of the eight octahedra nearest the
2. y ( 2 B − 1 , B ) ( + z 2 B − 1 , B ) − t 26 , B − 11 ≡ 0 ( mod 3 ) ) 3. x ( ) ( ) ( ) A , 1 − y A , 1 + z A , 1 − t 50 , A − 28 ≡ 0 ( mod 3 ) 4. x ( ) ( ) ( ) A , 1 − y A , 1 + z A , 1 − t 58 , A − 28 ≡ 0 ( mod 5 ) 5. y ( ) A , 1 + t 10 , A + 27 ≡ 1 ( mod 3 )
The method of analysis used by the authors to explain the basic framework of the calculation of the relationship between dependent variables and independent variables is based on multiple regression analysis with data processing using SPSS application software. To simplify the calculation by econometric method, the dependent variable is the Foreign Exchange Reserve with the variable (Y) and the independent variable is the Exchange (X 1 ), Inflation (X2 ),
We constructed rotational band structures of CO + 2 using the line-by-line lists of Mrozowski (1941, 1942, 1947) in or- der to derive a rotational temperature from the Austin spec- trum (this model is not presented here). We tested several temperatures, but we could not see discernable changes in rotational structures for different temperatures. Therefore, we could not derive a definite temperature from the 1.8 A ˚ resolution Austin spectrum. As mentioned previously, the space between rotational lines in wavenumber is only about 0.70 cm − 1 , which corresponds to approximately 0.07 A. ˚ Clearly a higher spectral resolution is needed to derive a rotational temperature of the CO + 2 bands. We defer detailed rotational analysis in our future works.
The aim of this study was to investigate the combined influence of 3 independent variables in the preparation of paclitaxel containing pH‑sensitive liposomes. A 3 factor, 3 levels Box‑Behnken design was used to derive a second order polynomial equation and construct contour plots to predict responses. The independent variables selected were molar ratio phosphatidylcholine:diolylphosphatidylethanolamine (X 1 ), molar concentration of cholesterylhemisuccinate (X2 ), and amount of drug (X 3 ). Fifteen batches were prepared by thin film hydration method and evaluated for percent drug entrapment, vesicle size, and pH sensitivity. The transformed values of the independent variables and the percent drug entrapment were subjected to multiple regression to establish full model second order polynomial equation. F was calculated to confirm the omission of insignificant terms from the full model equation to derive a reduced model polynomial equation to predict the dependent variables. Contour plots were constructed to show the effects of X 1 , X2 , and X 3 on the percent drug entrapment. A model was validated for accurate prediction of the percent drug entrapment by performing checkpoint analysis. The computer optimization process and contour plots predicted the levels of independent variables X 1 , X2 , and X 3 (0.99, –0.06, 0, respectively), for maximized response of percent drug entrapment with constraints on vesicle size and pH sensitivity.
Powder diffractometry (Fig 5.1) up to x « 0.3 showed a single-phase material with lattice parameters very similar to CriOg, as reported by Jayaraman et. al The lattice parameter variation, shown by Oyama et. a l was not observed: there was only a minor increase with increasing titanium concentration. A single diffraction line due to a second phase at 2 theta = 54.4 was just discernable at x » 0.3. This phase was clearly present at x = 0.5 and identified tentatively as CrTiOs. Figure 5.2 shows the variation of lattice parameters with titanium concentration. The average crystallite size of the samples displayed in Figure 5.3 was determined by the Scherrer equation. Increasing Titanium concentration decreased the average crystallite size linearly. Above the solid solution range the average crystallite size does not show a trend. The obtained results agree very well with studies from Chabanis et. al ^^on CTO prepared by a sol-gel route.
between the nitrogen LP and the Rydberg orbitals of the atoms of C=N-X group (Table 2, Group 3) shows that with an increase in electronegativity of X atoms in subgroup A, they contribute to a slight increase in the inversion barriers and their slight decrease in subgroup B (Table 3, Eqns. 14, 15). Moreover, upon the transition from the elements of the second period to the elements of the third period, the contribution of these interactions to the reduction of the inversion barriers for the IV-VII groups of the periodic system is relatively small and amounts to 6.8, 23.8, 33.2 and 46.2 kJ mol -1 , respectively. This is disparately insignificant
What is of great interest in Annette’s transformative journey in revising her view of self is her comments regarding her idea of what will be happening in her future classroom. Annette scribes, “We will explore areas of interest to them within the framework of the curriculum, but we will be guided primarily by their interests not by a curriculum.” Again, her focus is on classroom process rather than content. The notion of being able to move away from traditional teaching and learning of science and progress to a more responsive approach reflects a high level of self-efficacy. Bandura (1997) described the role of self-efficacy beliefs in the human agency in suggesting, "people's level of motivation, affective states, and actions are based more on what they believe than on what is objectively true" (p. 2). Bandura (1997) contends that people with confidence can sometimes outperform those with advanced skill sets who suffer from self-doubt. Unfortunately, even an enormous amount of confidence in one’s ability can result in success when the background information, knowledge and skills are absent. For teaching, this means that people with a good, but perhaps not superior, sense and understanding of science content knowledge and, instead, pedagogic knowledge can embrace their energies to design, organize and implement effective science teaching as long as they have the confidence that they can do so. Annette is uncertain, yet comfortable with her content knowledge. However, her improved pedagogic knowledge provides her the confidence to see herself effectively teaching science.
cooling rates of 2 to 30 K min − 1 . Using Ozawa’s method, the activation energies for dehydrogenation of the hydrides were estimated. The activation energies for the phase transforma- tions of dehydrogenation increase with the increase in hydro- gen pressure. The activation energy for the γ - β transforma- tion is higher than that for the β - α transformation, and the substitution of cobalt for a part of nickel in LaNi 5 increases
42. The x-coordinate of each x-intercept on the graph of a polynomial function is a zero of the polynomial function. Find the zeros of each function from its graph. Use synthetic division to check that the zeros found on your calculator really are zeros of the function.