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The purpose of this paper is to investigate the dark properties as a function of reverse current induced defects. Dark characteristics of solar modules are very essential in the understanding the functioning of these devices.

Reverse currents were applied on the photovoltaic (PV) modules to create defects. At several time intervals, dark characteristics along with surface temperature were measured.

Current-voltage (I-V) and capacitance-voltage (C-V) characteristics furnished valuable data and threshold values for reverse currents. Maximum module surface temperatures were directly related to each of the induced reverse currents and to the amount of leakage current. Microstructural damages, in the form of hot spots and overheating, are linked to reverse current effects. Experimental evidence showed that different levels of reverse currents are a major degrading factor of the performance of solar cells and modules.

These results give a reliable method to predict most of the essential characteristics of a silicon solar cell or a module. Similar test could help predict the amount of degradation or even the failure of PV modules.

This paper aims to present recently published resources on library instruction and information literacy providing an introductory overview and a selected annotated bibliography of publications covering all library types.

This paper introduces and annotates English-language periodical articles, monographs, dissertations, reports and other materials on library instruction and information literacy published in 2018.

The paper provides a brief description of all 422 sources, and highlights sources that contain unique or significant scholarly contributions.

The information may be used by librarians and anyone interested as a quick reference to literature on library instruction and information literacy.

The purpose of this paper is to elaborate the nature of everyday life as a context of information behaviour by examining how researchers have approached this issue. To this end, particular attention is directed to how they have characterized everyday life as a constellation of work-related and non-work constituents.

Evolutionary concept analysis was conducted by focussing on 40 studies on the topic. It is examined how the conceptualizations of everyday life and the relationships between work-related and non-work constituents have been evolved since the 1990s. The analysis is based on the comparison of the similarities and differences between the characterizations of the above constituents.

Early conceptualizations of everyday life as a context of information behaviour were largely based on Savolainen's model for everyday life information seeking. Later studies have proposed a more holistic approach to everyday life in times when the boundaries between work-related and free-time activities have become blurred, due to the growing use of networked information technologies and telecommuting. Since the late 1990s, the understanding about the nature of everyday life as a context of information behaviour has become more nuanced; thanks to a more detailed identification of the overlaps of work-related and non-work constituents.

As the study is based on a sample of studies examining the relationships of work-related and non-work constituents, the findings cannot be generalized to concern the contextual nature of everyday life as a whole.

The study pioneers by offering an in-depth analysis of the nature of everyday life as a context of information behaviour.