Please share your stories about how Open Access to this article benefits you. The trades unions of the working people exist under economical conditions and cannot be stamped out. Water does not run uphill and though human ingenuity may force it up, it will still run downhill. .. And so it is with the wage workers' organizations—they exist, and no power on earth can push them out of existence.

Oxidation of pollutants in waste water by photo-Fenton reaction has proven an ecofriendly and economical method. Oxidation of amido black – 10B, (an acid dye of azo series) using photoFenton reagent was investigated under ambient conditions. The effect of different parameters like the concentration of ferric ion, amido black10B and hydrogen peroxide, pH, light intensity etc. on the reaction rat...

The aim of this paper is to describe and analyze collaborations between artists and engineers working together in the making of computer art in Sweden 1967−1986. The paper is based on interviews with artists and engineers who collaborated during this time. By using the theoretical concept “coconstruction,” I map the phenomenon and discuss the driving forces behind the social, as well as the eco...

Thiol and selenol esters were synthesized by a direct oxidative coupling reaction of aldehydes with disulfides or diselenides in ethyl acetate under metal-free conditions. Among the oxidants examined, tert-butyl peroxide (TBP) was shown to give the best results. For the substrates with both electron-donating and electron-withdrawing substituents, the reaction proceeded smoothly and gave moderat...

The total synthesis of a methylated analogue of (+)-Salvianolic acid C has been achieved. Key aspects of the synthetic route include an economical Cu(I) acetylide coupling, unique carboxyl activation conditions via microwave irradiation and a novel lipase catalysed kinetic resolution of a racemic mixture of secondary alcohol Danshensu. The preparation of this methylated analogue will not only i...

The production of distillate fuels and chemicals from coal has never been economical in a free market economy. The principal factors which contribute to the high cost of coal-derived liquids are the large amounts of hydrogen which must be added to remove heteroatoms and to convert material containing about 5 wt% hydrogen to products with between 12 to 14 wt% hydrogen, the severe reaction condit...

A technique for discretizing efficiently the solution of a Linear descriptor regular differential input system with consistent initial conditions, and Time-Invariant coefficients LTI is introduced and fully discussed. Additionally, an upper bound for the error ‖x kT − xk‖ that derives from the procedure of discretization is also provided. Practically speaking, we are interested in such kind of ...

Biotechnology is important solution to many synthesis issues. It offers less energy intensive, economical and easy solution to synthesis of many chemicals. The choice of substrate, enzyme and reaction conditions needs careful study. Ethanol, citric acid, lactic acid, amino acids, proteins and many other compounds are produced by biochemical pathways. It is said that 80 percent of the process co...

In our continued effort to address the challenges of selective sp3 C-H fluorination on complex molecules, we report a sensitized aliphatic fluorination directed by terpenoidal enones using catalytic benzil and visible light (white LEDs). This sensitized approach is mild, simple to set up, and an economical alternative to our previous protocol based on direct excitation using UV light in a speci...

library standardization is mainly concerned with technical services, space and equipments, and information content of library collection with little or no regards to the user. given every country's certain social, economical and cultural conditions, specialized libraries should engage increasingly in developing information literate users on the basis of standards, rather than standardizing tech...