This essay wants to reply to one of the most important ontological problemes that the theory of existential gradation can justify numerical MANYNESS of beinges or not? This research at the first step will show that the gradational relationship between two things logically dependes on VERTICAL and casual linkage waist them. So that the gradational relevance is neccessarily VERTICAL. And so horizontal gradation is paradoxical concept like "roundel square". Therefore realization of gradational respect among horizontal beinges is impossible. Thus the theory of existential gradation cant explain numerical multiplicity of the instances of a species. In the second stage of this essay we criticize and refuse the viewpoints of Allamehe Tabatabaei, Martyr Motahari and Javadi Amoli about the coherency among the horizontal MANYNESS of objects and the theory of existential gradation.

Statement of Problem: Total removal of tissues and remnant microorganisms as well as canal shaping is the essential objectives of endodontic therapy. A successful endodontic treatment is obtained through Shilders principals, however; complete observation of this technique using stainless steel files manually is problematic and time-consuming. Modern technology, in order to eliminate such problems, has presented new facilities such as Nickel-Titanium (NiTi) files and engine driven instruments.Purpose: The aim of this in-vitro study was to compare the canal debridement efficiency of three engine driven instruments: Rotary, Reciprocal and VERTICAL.Materials and Methods: In this experimental study, 60 mesial roots of human first and second mandibular molars were divided into three groups randomly. In each sample, one canal was considered as case, the other one as control. Files used in Reciprocal and VERTICAL groups were of handy Ni-Ti type and in rotary group, rotary Ni-Ti files were used. After debridement, the roots were sectioned at 3mm and 5mm from anatomic apex, stained and examined under light microscope. Comparison criteria between case and control groups were based on residual debris and predentin and the level of root canal preparation and shaping after debridement. Data were subjected to kruskal-Wallis non-parametric test.Results: There was no significant difference between the efficiency of debridement at 3mm and 5mm sections between all groups. But difference in time consumption was significant ranked from the shortest to the longest as rotary, reciprocal and VERTICAL.Conclusion: The efficiency of debridement between the three automated instruments was approximately equal, however; the instrumentation time was different between three groups. Rotary system was the fastest one, as compared with reciprocal (second) and VERTICAL (last). It may be concluded that rotary system has a superiority over the other two groups in conventional root canal therapies.

The upcoming study investigates the design and use of VERTICAL-axis wind turbines for power extraction in Chahnimeha, Zabol. In Sistan and Baluchestan provinces, due to the vastness and climatic barriers, the use of renewable energy can greatly contribute to the well-being of people. Using the meteorological data of this province, the average wind speed in the Chahnime region is estimated at 6.4 m/s. At first, 4 airfoils with the highest lift-to-drag coefficient have been selected and studied for wind turbine design. By choosing the best airfoil among the four examined ones, a wind turbine with 3 different blade sizes and rotor radius was designed. The wind turbine, which is designed with a blade length of 3 meters and a rotor radius of 1.5 m, has the best performance. The VERTICAL axis wind turbine has been investigated in 4 models with 3, 5, 7, and 9 blades. The power factor of the 3-bladed turbine is equal to 0.30, and of the 7-bladed wind turbine is equal to 0.45. Among the examined wind turbines, the best wind turbine with 7 blades was chosen. The reduction of wind speed before the blades is influenced by the solidity of the wind turbine. The study of wind turbine exergy was used to investigate the environmental effects such as humidity and temperature on the performance of wind turbines in the climatic region of Zabol. The exergy efficiency of the designed 3-blade and 7-blade wind turbine is equal to 45 and 75%, which shows the effect of temperature and relative humidity on the wind turbine efficiency in a climate region. The results of this study clearly show that it is possible to use a 7-blade VERTICAL axis wind turbine to provide electricity to areas far from the grid and to produce scattered.

VERTICAL agreements include those contracts which are entered into between the holders of the valuable commercial right like name, trademark and/or special process of production or distribution and another party in VERTICAL line in order to cooperate in various commercial levels, and by virtue of which the first party shall grant the license of marketing, sale or other his economic activities to another party. These contracts have involved the most rate of agreements in commercial and economic exchanges and expansion of knowledge and technology, and all are established in a unified principles which one of them is the Goodwill Principle. This was admitted in international law in general and in international commercial law in particular. And, a vast rate of duties and tasks like trusteeship, good performance, accurate information, financial soundness, etc. were inflicted to the both parties of a VERTICAL agreement. It is herein dealt with the effect of the goodwill on these agreements and outcomes resulting therefrom.

Golpaie et al. reported changes in lipid profile and insulin resistance in morbid obese patients following the Laparoscopic Total Gastric VERTICAL Plication (LTGVP), and it revealed a significant weight loss and an improvement of lipid profile and insulin resistance among morbidl obese patients (1). This method was introduced by Talebpour et al. 2007, as a new technique derived from sleeve gastrectomy for the treatment of morbid obesity and produces the restriction by a plication of the great curvature of the stomach using three lines of sutures (2). Menchaca et al. reported the experimental study of VERTICAL gastric plication using hound dogs. It revealed that LTGVP confirmed the short-term durability and development of dense fibrous appositions of the serosal folds (3), although, additional studies are needed to identify clinical applications of this procedure. In fact, LTGVP gives equivalent short-term outcomes as VERTICAL gastrectomy and is a reproducible and reversible technique with indications and outcomes still to be validated (4).