Introduction: The collaborative learning and interactive electronic-learning (e- learning) is one of the key factors in education system success. This study examined the collaborative e-learning in the framework of constructivism theory. Methods: This is a review article. The databases such as Scientific Information Databases, Magiran, Science Direct, and Google Scholar were reviewed. Also,...

IN T R O D U C T IO N Reduced to its simplest terms, solid waste collection and disposal consists of the acceptance of the solid waste from processes of human life, the transportation of such material to disposal sites, and the process­ ing and disposal of the material so that nuisances are not created. The entire process must be carried out in such a manner that the public health of the commun...

WHEREABOUTS UNCERTAIN JOHN HUTCHNSON, described as "surgeon", was one of seven cabin passengers who left London in September 18521 on the first Australian voyage of the Washington Irving (900 tons, Captain John Jones).2 The voyage was recorded as "without untoward incidents and very pleasant" although one of approximately 270 intermediate and steerage passengers (including about fifty children)...

this research was conducted to investigate genotyp×environment interaction for grain yield of ten wheat cultivars in 8 environments (combinations of two nitrogen fertilizer treatment and four irrigation regimes). analysis of additive main effects (analysis of variance) and multiplicative interaction effects (principal component analysis) revealed that the effects of genotype, environment and ge...

to evaluate the effect of environment on the general and specific combining ability of virginia tobacco genotypes, five varieties were intercrossed in combination in 2007 in a half – diallel design. in 2008, the ten f1 population and the five parental lines were sown in two different conditions (drought stress and non-stress) using a complete randomized block design with three replications and ...

Soybean (Glycine max (L) Merr.) planted in land space among stands of other crops especially forest trees experience shading stress due to less sunlight penetration. The objective the study was identify performance and yield stability soybean genotypes various environments. Field research conducted 2018 on 15 consisted 12 promising lines three check varieties (Dena 1, Dena 2, Grobogan) 10 envir...

The disease cholera has persisted in Asia since time immemorial. Almost all the pandemic phases of cholera had its origin from the Indian subcontinent. Historically, waves of cholera have wiped many million lives in this region mainly due to the general insanitary conditions and poor management of the disease. All the three cholera causing vibrios namely classical, El Tor, and the O139 have eme...

pasting is one of the most important properties of wheat starch determining the flour quality and functionality. twenty three new plant type (npt) wheat derivatives along with three checks (pbw 343, hd 2329, and raj 3765) have been studied in multi-location trials to assess the variation and environment induced fluctuations for their starch pasting properties. although all flour pasting charact...