nahid shahveisi

Research is one of the most important processes in scientific societies, and one of the main stages and foundations of any research is the investigation of the Literature Review. Literature review has a special value and place in research, and the value of literature review increases when the researcher analyzes it critically, because stating the shortcomings and merits of past researches informs the researchers to find out in which field more research is needed and what are the deficiencies in research; this work shows the skill of the researcher and his mastery over the investigated researches. The literature review is not only a summary of previous researches, but the review of sources requires a complete and systematic analysis of the strengths, shortcomings and inaccuracies of past researches, and a careful review of the sources can guide the researcher in the field of research.

The results of the investigations show that, so far, inside and outside the country, no research has been done with a systematic review method with a critical analysis approach to collect sources on the topic of literature review; although Koreh-Paz (2016) has compared the literature review of two disciplines, a separate research, all the sources that have dealt with the issue of literature review in all disciplines have not been examined. Fatahi and Parirokh (1999), Karami (2017), Yahyavi (2015), Fit (2011), Nopf (2006), Winchester and Selji (2016) have taken steps to guide researchers in the field of literature review and also in research sources Hori (1997), Nariza et al (2014) have examined the year, topic relevance, sharing and quality of literature review.

This research has collected studies and researches conducted in the field of literature review using a systematic review and a critical analysis approach, as well as a qualitative library-document method. In order to collect sources and select the appropriate source, the following steps were taken, which are as follows:1- Determining the purpose of the research: according to the topic of the research, i.e. literature review and critical analysis of sources, all the researches and studies that were related to the topic of literature review were examined.
2- Searching for sources: in order to search for accurate sources related to the subject of research, considering that literature review is used in different disciplines and fields with different titles, first by checking in texts and books.
3- Analysis of sources: After searching the databases, a total of 64 sources were retrieved in Persian and non-Persian databases. By reviewing the sources, 13 sources had duplicate titles, which were removed from the collection of reviews, and then by reviewing the full text of the remaining sources, 20 articles were identified as unrelated to the research topic, although the titles of the sources show thematic relevance, in the review of the text, it was found that they are unrelated, because some sources have chosen literature review in the title of the word review, but within the text, especially in non-Persian sources, they have not paid attention to the issue of literature review. After going through the above steps, a total of 31 sources (articles, books and theses) were examined.
4- Extraction of thematic categories: after examining the full text of the selected sources, for its thematic classification, the most important topic that the source had examined from its own angle, the literature review, was placed as a category, meaning that the selected categories were extracted from the texts and based on the understanding and inference obtained from the sources, they were considered for this research, then according to the large number of categories extracted from the texts, categories were selected that had the highest frequency; in this way, the sources were divided into three categories, which are: 1- theoretical studies and guides (definition, importance, purpose and function) of literature review 2- evaluation criteria of literature review 3- criticality of literature review.

The result indicates that the literature review is divided into 4 categories as follows:1- Theoretical foundations and guidelines (definition, importance, purpose and function) of literature review: Most of the studies and researches that have been done in relation to the theoretical foundations of literature review are related to articles. The findings indicate that most of the studies intended to provide guidelines for the preparation of the literature review in addition to the importance and benefits of the literature review for researchers.
2- Reviewing the criticality of the literature review:Table 2 shows that in the two studies that have been conducted in relation to critical analysis, although the basis of the research work was the critical analysis of the literature review, they did not criticize the sources as they should have, in the end, Korepaz's letter did not pay attention to the critical analysis of the literature review, and in the text of the literature review, he did not examine the literature with a critical approach, but besides this, Akindele's research examined the research with critical analysis, which he counted it as one of its merits.
3- Literature review evaluation criteria:Most of the conducted researches have investigated the quality of the literature review, these researches take into consideration the criteria of the year, the structure of the literature review, the relevance of the topic, the impartiality of the researcher in the research work and information literacy education.

Research is one of the important factors for the growth and success of societies, and researchers can be successful in conducting their research when they put the works and resources of the past at the forefront of their work. The review of the conducted researches and studies shows that most of the sources that have been written about the literature review have paid attention to the theoretical foundations of the literature review and it can be said that most of the researches have followed it. 

The results of the findings indicate that in the category of theoretical foundations, one of the strong points of the researches is that they have explained the importance, benefits and functions of the background of the research in an understandable and expressive manner. Also, one of the weaknesses of these studies is that they have not explained exactly how the researcher can compile a research background, and the guidelines of these studies are mostly theoretical and have not considered the practical development of the research background. In the category of critical review of backgrounds, one of the advantages of the researches is to pay attention to the review of the researches with a critical approach, but these researches have only addressed the weak points of the researches in the review of the sources and the research itself. Also, he did not critically analyze the sources he used. In the category of research background evaluation criteria, the most important criteria proposed in the researches for research background evaluation are: year, research background structure, subject relevance, researcher's impartiality in research work and information literacy education. Also, one of the strengths of the researches in this category is the provision of instructions, providing guidelines and considering criteria for evaluating the quality of the research backgrounds, and the weaknesses are the lack of clarity and understanding of the considered criteria.

The main objective of this study was to investigate the role of Kermanshah public libraries in attracting users from the perspective of their clients.

This research utilized a quantitative survey method. The statistical population consisted of all members of public libraries in Kermanshah, totaling 12,197 individuals. The sample size was determined to be 372 members, selected through simple random sampling using Cochran's formula.

The findings indicated that the highest percentage of efforts made by libraries to attract users was through reserving and lending resources (41.3%). Conversely, the use of advertisements had the lowest percentage (2.02%). In terms of users' tendencies towards different book subjects, specialized books (27.7%), general information (22.6%), and fiction/poetry (20%) were the most preferred categories.

The study identified several factors that have contributed to a decrease in the number of library visitors, including a lack of suitable reading resources, inadequate facilities, an unappealing environment, and traditional library management practices.Value: This research provides valuable insights into the strengths and weaknesses of public libraries in Kermanshah when it comes to attracting users. This knowledge can aid library officials and trustees in identifying the information needs of their users.

Literature review is one of the main processes in various researches and fields, and addressing it requires attention and knowledge of the theoretical foundations and how to write literature review. In order to write and collect resources, researchers need to make the discussion of research backgrounds their top priority. Therefore, the main purpose of this research is to describe and explain the theoretical foundations of literature review and how to search and collect resources from databases as well as write Less defects literature reviews and clear visual presentation there are different types of literature review for researchers. This study has been done by documentary method and different Persian and Latin sources and databases have been used for this research.The results show, despite the importance and position of literature reviews in research, and a lot of studies have been done about it around the world, but researchers still have problems with what the literature review is and how they can examine and how to write and implement resources, and as perhaps and should not have been considered and analyzed, to be able to practically guide researchers on how to write Literature review. Studies also show this, Some researchers are not familiar enough with the literature review and how to compile them, and most of the research is based on the theoretical foundations of literature review.

 literature review is one of the main topics in research texts and articles, so that the compilation of research articles is done in line with the literature review and past works. Therefore, the purpose of this study is to investigate the content of the literature review of research articles in the two disciplines of information science and Knowledge and sociology.

 The present study was conducted by quantitative content analysis method, which has reviewed 60 research articles in the two fields of information science and Knowledge and sociology.

 Research findings show, regarding the thematic relevance of literature reviews, the status of literature reviews Research articles are in a favorable situation, but Status of literature reviews in terms of attention to critical approach and analysis of literature reviews to better understand the subject are not in a good position. In terms of coherence and sufficient explanations of the literature review, the situation in the field of information science has been more successful than in the field of sociology. The results of Mann-Whitney test show that there is no significant difference in the cases except for the critical analysis of literature reviews.

 It seems Researchers do not pay enough attention to the content of the literature review, And only to preserve the appearance, literature reviews are given, which do not have much information load, In the event that if researchers take an in-depth look at previous studies and research, not only increases the amount of knowledge of the researcher, but also realizes the shortcomings and advantages of other research, and becomes familiar with the methods used in research, In this regard, the researcher can compile an ideal research and low defects take a step.

The present study analyzes the research literature review section the five master's theses in the fields of information science and Knowledge, social sciences, psychology, political science and counseling in years 2013 to 2018 of the Faculty of Social Sciences And has provided training at Razi University.

This research is a method quantitative content a applied type, 140 dissertation titles have been reviewed. The tool used in this research, is a checklist. Mean data comparison tests were used to analyze the data.

The findings indicate that, regarding structure in the field, the field of consulting has the highest percentage and the field of political science has the lowest percentage in terms of structure. In terms of content by string, The field of social sciences has the highest percentage and the field of psychology has the lowest score. In structure by year, as research literature reviews get closer to 2018, have performed better, and in content also by year, as we approach the year 2018, performed worse, This means that research literature reviews performed better in 2013 and 2014.The findings also indicate the second place of the field information science and Knowledge among other fields. In this field, in terms structure in terms of year, 2015, and in terms of content, in terms year, 2013 had a better situation among other years.

The results indicate that according to considered criteria, the literature reviews are relatively well structured, but weak in content, and they do not have desired quality.