The Black Book of Sudan by The Seekers of Truth and Justice (Review)

The Black Book of Sudan is reviewed

Study the Effect of adding Natural Rubber and Polymethyl Methacrylate to the Epoxy Resin on the Quantitative Analysis and its Mechanical Properties

From polymer blends can be obtained more useful properties compared with single polymer. In this work, polymer blend (Epoxy (EP): Natural Rubber (NR)) with different ratios of NR (0, 2, 3.5 and 5%wt) and ternary polymer blend with ratio of (Epoxy: 2%NR: 5% wt. PMMA) were prepared. The Mechanical properties were included (tensile, flexural, impact, compression) tests and analytical physical properties (FTIR, SEM) were investigated, and the results show that the elongation values, impact strength and fracture toughness for polymer blend system (Epoxy: NR) were increment with increase natural rubber ratio in the polymer blend system. Whereas fracture strength, young’s modulus, flexural strength, flexural modulus and maximum shear stress decreased. The highest values of impact strength and fracture toughness were (0.041KJ/m2) and (0.321 MPa √m) respectively for polymers blend (95% Epoxy: 5% NR). Ductile fracture in rubber modified epoxy may be produce from the elastomeric nature of rubber which is represents an energy dissipating center

Introduction

Parties are indispensable political organizations through which people channel commonly shared values, beliefs, and ideas of governing and ordering priorities. Once political parties gain power; preferably, in free and fair elections, they can control the state and the resources and personnel of the government individually or in coalition with other political parties. As instruments of collective action, argues Weiner, political parties are the creation of the political elite in a bid to control the resources and personnel of government to implement an ideology or a political program.1 From this perspective, Islamic political parties that entered competitive politics are no different from other political parties in that all parties struggle to gain power and to control the government and its resources. Moreover, much like other political parties, they have various types of organizational structures, ability to mobilize financial resources, provide support and goodwill, recruit cadres, select or elect officers, and, in some cases, develop procedures for internal control and management

C19orf12 mutation leads to a pallido-pyramidal syndrome.

Pallido-pyramidal syndromes combine dystonia with or without parkinsonism and spasticity as part of a mixed neurodegenerative disorder. Several causative genes have been shown to lead to pallido-pyramidal syndromes, including FBXO7, ATP13A2, PLA2G6, PRKN and SPG11. Among these, ATP13A2 and PLA2G6 are inconsistently associated with brain iron deposition. Using homozygosity mapping and direct sequencing in a multiplex consanguineous Saudi Arabian family with a pallido-pyramidal syndrome, iron deposition and cerebellar atrophy, we identified a homozygous p.G53R mutation in C19orf12. Our findings add to the phenotypic spectrum associated with C19orf12 mutations