4-H

organs consisting of elements such as H, C, N, O ,Ca ,P, Na, Mg, S, CI ,K ,Fe and I in their elemental composition. We have studied the variation of mass attenuation and energy absorption coefficients with atomic number at different energies for the elements which are constitutes of tissues of human organs. It has been proposed the empirical relations for mass attenuation and energy absorption coefficients interms of atomic number and energy for the elements such as H, C, N, O ,Ca ,P, Na, Mg,…

(3) Equation (3) gives limit moment about 11% higher than equation (2) regardless of h. One notable point is that the above solutions depend only on bend factor(h), not on r/t and R/r. Equations (1-3) are applicable only for the pure in-plane bending moment and the effect of internal pressure is not taken in to account. Also these analytical solutions consider constant wall thickness along the contour of the pipe bend cross section. However, the most of the pipe bends are made using a forming…

was performed to measure the cell viability. Briefly, RAW 264.7 cells were treated with different concentrations of spermidine for 24 h or pretreated with spermidine for 1 h before stimulation with LPS for 24 h. After incubation, the medium was discarded, and MTT solution (5 mg/mL in phosphate-buffered saline, PBS) was added to each well and incubated for another 3 h at 37 °C. The medium was removed, and DMSO was added to dissolve the formazan dye. The optical density was then read at 560 nm…

experience, while others choose to highlight the miniscule moments. Being a leader is a person who leads by doing, just as we learn in 4-H. A person can lead by doing in a large and small setting. I choose to highlight the miniscule moments, as I feel it has impacted others the most. For the past four summers I have served as a cabin counselor for 7th-9th grade girls for areas 4-H Summer Camp. Camp is only five days long, but I am able to witness shy girls turn into confident young leaders by…

a) According to the right-hand rule, the direction of the magnetic fields of the 3 wires are shown: We find the magnetic fields B1, B2 and B3: 퐵1=퐵2= 푢0 푖 = 푢0 푖 = 4∗3.14×10−7 ∗(3.65) =ퟒퟐ.ퟔퟔퟎ풖푻 2휋푟 2휋( 2푎) 2 ∗ 3.14 ∗( 2(0.0121)) 퐵3= 푢0 푖 = 푢0 푖 = 4∗3.14×10−7 ∗(3.65) =ퟐퟎ.ퟏퟏퟎ풖푻 2휋푟 2휋(3푎) 2 ∗ 3.14 ∗(3∗(0.0121)) The x components of the B1 and B2 cancel each other; therefore the net magnetic field will be downward and we have (the negative sign is because the direction is downward): 퐵=− 퐵1cos 45 +…

spin coating? 2 1.2. Schematics and design 2 1.3. Factors on which Spin Coating depends 2 1.4. Industrial uses 4 2. Model 4 2.1. Governing Equations 4 2.2. Modified Governing Equations 4 2.3. Radial and Axial Velocities 5 2.4. Volumetric Flow Rate 6 2.5. Variation of Height with time 6 2.5.1. Case A: No Evaporation of Solvent 6 2.5.2. Case B: Evaporation of Solvent 7 3. Future Work 9 4. Appendix 10 Introduction Spin coating is a predominant technique in modern science and engineering to…

Quinoxaline is well known for its broad coverage in the field of medicine as well as for its application in the pharmaceuticals as they have shown wide range of biological properties such as antimicrobial [2], antibacterial [3], antitubercular [2, 4], antiprotozoal [5] , anti-candida [2, 6], anti-cancer [7], anti-AIDS [8] and anti-inflammatory [9] activities. Many scientists report quinoxalinone derivatives as non-classical analogues of the antifolic agents-methotrexate and trimetrexate, as well…

U., & Benlian, Y. (2010). Purchase of global shampoo brands and the impact of country of origin on Lebanese consumers. Journal of Product & Brand Management, 19(4), 261-275. Chao, A., & Schor, J. B. (1998). Empirical tests of status consumption: Evidence from women's cosmetics. Journal of Economic Psychology, 19(1), 107-131. Van Trijp, H. C., Hoyer, W. D., & Inman, J. J. (1996). Why switch? Product category: level explanations for true variety-seeking behavior. Journal of Marketing Research,…

manganese dioxide had a higher reaction rate than the potato. In data table two, the new potato piece and new H₂O₂ had a reaction rate of 2.5 out of 3 and the manganese and new H₂O₂ had a reaction rate of 3. Additionally, the 1 mashed potato piece had a reaction rate of 2 out of 5 and 1 scoop of manganese dioxide had a reaction rate of 3. Two mashed potato pieces had a reaction rate of 4 and 2 scoops of manganese dioxide had a reaction rate of 5. Three mashed potatoes had a reaction rate of 4.5,…

Properties” S.A. Ivanov, A. Piryatinski, J. Nanda, S. Tretiak, D. Werder, V. I. Klimov Theoretical model. To describe quantum states in a spherically symmetric Type-II core/shell nanocrystals (NC) characterized by the core radius R and the shell width H, we use effective mass approximation. We assume the existence of single energy bands for both electrons and holes. This assumption represents simplification compared to multi-band models that explicitly take into account mixing between, e.g.,…