The objective of this article is to conceptually transfer the concept of open source software (OSS) development to scientific entrepreneurship and to hypothetically discuss the support potentials of this rather new development philosophy for what we than call open scientific entrepreneurship. Therefore, at first the authors will go into conceptual details of scientific entrepreneurship and than...

Blasting is an essential part of any mining or civil engineering project along with all the benefits that it brings, such as cost and time effectiveness, safety. Still, there are a few downsides to blasting. Ground oscillation velocity most significant impact blasting has been studied broadly. However, not measured values should be used for PPV (peak particle velocity) predictor model developme...

The greenery-covered tall building, an innovative building typology that substantially integrates vegetation into the design, promises to transform urban landscapes more sustainable and livable spaces. This paper explores concept of buildings. It achieves its objectives by offering overall introduction this typology, mapping out novel projects identify ideas design strategies, reviewing social,...

In recent years the major developments in employee-benefit plans sponsored or underwritten by private organizations have been reported regularly in the Social Xecurity Bulletin. Thiis year the report is in two parts. Part I, which appeared in the April issue of the Bulletin, included 1959 data on coverage, contributions, and benefits under health, welfare, and retirement plans. In addition it d...

From time to time the Bulletin carries reports on operations in the five States that supplement the unemployment insurance benefit with a small allowance for dependents of beneficiaries . This article discusses sources from which data on the dependents of wage earners can be obtained and the use of such information in estimating the extent to which inclusion of dependents’ allowances aflects th...

The purpose of this study is to present the information on the duration of treatment and the cost of work-related low back pain. Using the compensation-database for 1997 work-related low back pain (n=9,277), this study estimated the duration of treatment, the cost of work-related low back pain, the relationship between them, and probability of being off treatment at different intervals. The mea...

m.a. abdoli 1 , b. tavakoli *1,2, m.h. menhaj3 1- dept. of environmental engineering, university of tehran, faculty of environmental science, tehran, iran. 2-dept. of environment, faculty of natural resources, university of guilan, someh sara, iran 3- dept. of rural development, faculty of agricultural sciences, university of guilan, rasht, iran *corresponding author's e-mail: babak_13...