نتایج جستجو برای: durable products
تعداد نتایج: 304131 فیلتر نتایج به سال:
Using data from China's Urban Household Survey and exploiting China's mandatory retirement policy, we use the regression discontinuity approach to estimate the impact of retirement on household expenditures. Retirement reduces total non-durable expenditures by 21 percent. Among the categories of non-durable expenditures, retirement reduces work-related expenditures and expenditures on food cons...
A growing number of scholars argues that we are witnessing a resurgenceof religion in world politics, accompanied by an increasein religiously inspired conflict. Empirical studies demonstrate thatreligious conflicts more violent, intense, durable, andmore difficult to resolve through negotiated settlements than theirsecular counterparts. In this paper, argue these conclusionsare unreliable, bec...
The polyunsaturated lipid mediator PD1n-3 DPA (5) was recently isolated from self-resolving inflammatory exudates of 5 and human macrophages. Herein, the first total synthesis of PD1n-3 DPA (5) is reported in 10 steps and 9% overall yield. These efforts, together with NMR data of its methyl ester 6, confirmed the structure of 5 to be (7Z,10R,11E,13E,15Z,17S,19Z)-10,17-dihydroxydocosa-7,11,13,15...
in this thesis, a better reaction conditions for the synthesis of spirobarbiturates catalyzed by task-specific ionic liquid (2-hydroxy-n-(2-hydroxyethyl)-n,n-dimethylethanaminium formate), calcium hypochlorite ca(ocl)2 or n-bromosuccinimide (nbs) in the presence of water at room temperature by ultrasonic technique is provided. the design and synthesis of spirocycles is a challenging task becaus...
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