منابع مشابه
Planting contemporary practice theory in the garden of information science
Introduction. The purpose of this article is to introduce to information science in a coherent fashion the core premises of contemporary practice theory, and thus to engage the information research community in further debate and discussion. Method. Contemporary practice-based approaches are summarised in an ensemble of five core premises by means of a broad conceptual analysis of the relevant ...
متن کاملCompanion Planting and Insect Pest Control
There is growing public concern about pesticides’ non-target effects on humans and other organisms, and many pests have evolved resistance to some of the most commonly-used pesticides. Together, these factors have led to increasing interest in non-chemical, ecologicallysound ways to manage pests [1]. One pest-management alternative is the diversification of agricultural fields by establishing “...
متن کاملCompanion Crop Recommendations for Planting with Black Walnuts
The concept of planting trees in widely spaced rows and growing cash crops in the alleyways is a special form of agroforestry called alley cropping. To be successful, the companion crop’s physiological requirements (i.e., light, water and nutrients) must be accommodated by the tree. Black walnut’s (Juglans nigra L.) foliage and root system are unique and readily adapted to the growth of compani...
متن کاملfocus on communication in iranian high school language classes: a study of the role of teaching materials in changing the focus onto communication in language classes
چکیده ارتباط در کلاس به عوامل زیادی از جمله معلمان، دانش آموزان، برنامه های درسی و از همه مهم تر، مواد آموزشی وابسته است. در تدریس ارتباطی زبان که تاکید زیادی بر توانش ارتباطی دارد، کتاب درسی به عنوان عامل موثر بر پویایی کلاس محسوب میگردد که درس ها را از طریق فراهم آوردن متن ارتباط کلاسی و هم چنین نوع تمرین زبانی که دانش آموزان در طول فعالیت های کلاسی به آن مشغول اند، کنترل می کند. این حقیقت ک...
15 صفحه اولHeavy metal contamination in a school vegetable garden in Johannesburg.
BACKGROUND Feeding schemes based on school garden produce have been proposed as an effective solution to food insecurity and hunger among learners in South Africa. However, few studies have looked at the potential contamination of school food gardens when situated near mine tailing dams. OBJECTIVES The aim of the study was to evaluate the potential heavy metal contamination in a school vegeta...
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ژورنال
عنوان ژورنال: Open Schools Journal for Open Science
سال: 2019
ISSN: 2623-3606
DOI: 10.12681/osj.20220