scholarly journals Effort of rugby teams according to the bonus point system: a theoretical and empirical analysis

Author(s):  
Federico Fioravanti ◽  
Fernando Tohmé ◽  
Fernando Delbianco ◽  
Alejandro Neme
1979 ◽  
Vol 6 (2) ◽  
pp. 77-80 ◽  
Author(s):  
Paul R. Solomon

A simple substitute for daily quizzes increases incidence and criticality of reading and frequency of class discussion.


Author(s):  
Xueping Li

Nanoparticles have been used in the cytotoxic test for many times because of their easy size control, good biocompatibility and other characteristics. Therefore, a method based on big data technology for the in vitro cytotoxic test of nanoparticles is proposed. The cells were evenly inoculated into 96 well plate, the prepared AuNPs was diluted with DMEM cell culture medium, and the cytotoxicity was divided into 5 levels by 5-point system. A database model of cytotoxic characteristics of gold nanoparticles (AuNPs) was built to mine the toxic characteristics of cultured cells. The results showed that when the diameter and size of AuNPs were 1.8 nm, the cytotoxicity rating was the highest, which was 4. When the diameters of AuNPs were 18 nm and 27 nm, the cytotoxicity rating was 0. When the high concentration DMEM solution of 90 μg/mL was used to treat AuNPs, the cytotoxicity reached the highest value, and the lowest activity was 12%. When the cells were treated with DMEM solution for 24 hours, the activity and toxicity of the cells were the least and the toxicity was the strongest, and the number of apoptosis in the cell community was significantly reduced under the action of AuNPs.


1985 ◽  
Vol 38 (3-4) ◽  
pp. 647-653 ◽  
Author(s):  
E. Presutti ◽  
E. Scacciatelli

2018 ◽  
Vol 19 (4) ◽  
pp. 365-382 ◽  
Author(s):  
Vera Gurtovaya ◽  
Sergio Nisticò

AbstractThis paper examines the analytical properties of the German ‘points-based’ pension system. These properties are compared with those of a canonical Notional Defined Contribution (NDC) pension scheme. The paper identifies the circumstances under which the German ‘points-based’ system would mimic a Swedish-type NDC scheme and verifies to what extent the German ‘points-based’ scheme ensures uniformity of individual rates of return for some hypothetical careers. Finally, the paper proposes a set of new possible adjustment rules able to increase similarity between the German point system and the NDC scheme.


1990 ◽  
Vol 112 (4) ◽  
pp. 703-710 ◽  
Author(s):  
A. O. Chingcuanco ◽  
P. M. Lubin ◽  
P. R. Meinhold ◽  
M. Tomizuka

A balloon borne stabilized platform has been developed for a remotely operated altitude-azimuth pointing of a millimeter wave telescope system. A modeling and controller design of the azimuth point system of the platform is presented. Simulation results show that the system is capable of continuous operation with pointing rms to better than 0.01 deg. Ground testing results show continuous operation with pointing rms to better than 0.02 deg; while results of the first flight from the National Scientific Balloon Facility (NSBF) at Palestine, Texas show pointing rms better than 0.02 deg.


2011 ◽  
Vol 3 (1) ◽  
pp. 81-96 ◽  
Author(s):  
Lluís Samper Rasero ◽  
Jordi Garreta Bochaca

Textbooks are basic elements that shape the school curriculum. Despite the democratization and decentralization of the Spanish educational system, a certain ideological inertia and bias with respect to their contents and focus persists. The study presented here is based on an empirical analysis of the contents of 264 books used at the primary (6-11 years), secondary (12-14 years) and baccalaureate (15-16 years) levels. The results point to the existence of an "unstated" curriculum, where only brief mention of Islam, Arabs and Muslims, and their presence in Spain predominate. These are usually accompanied by images - for cognitive support - that serve to maintain an exotic, anti-modern, anti-Western and, in other words, an "Orientalist" image of this group.


Author(s):  
R. C. Moretz ◽  
G. G. Hausner ◽  
D. F. Parsons

Electron microscopy and diffraction of biological materials in the hydrated state requires the construction of a chamber in which the water vapor pressure can be maintained at saturation for a given specimen temperature, while minimally affecting the normal vacuum of the remainder of the microscope column. Initial studies with chambers closed by thin membrane windows showed that at the film thicknesses required for electron diffraction at 100 KV the window failure rate was too high to give a reliable system. A single stage, differentially pumped specimen hydration chamber was constructed, consisting of two apertures (70-100μ), which eliminated the necessity of thin membrane windows. This system was used to obtain electron diffraction and electron microscopy of water droplets and thin water films. However, a period of dehydration occurred during initial pumping of the microscope column. Although rehydration occurred within five minutes, biological materials were irreversibly damaged. Another limitation of this system was that the specimen grid was clamped between the apertures, thus limiting the yield of view to the aperture opening.


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