scholarly journals The Application of Spatial Approximations to Spatial Query Processing: A Systematic Review of Literature

2021 ◽  
Author(s):  
Pedro G. K. Bertella ◽  
Yuri K. Lopes ◽  
Rafael A. P. Oliveira ◽  
Anderson C. Carniel
Keyword(s):  
Systematic Review ◽  
Spatial Index ◽  
Index Structures ◽  
Spatial Query ◽  
Review Of Literature ◽  
Spatial Queries ◽  
Tree Structures ◽  
Spatial Objects ◽  
Processing Step ◽  
Final Answer

Spatial approximations simplify the geometric shape of complex spatial objects. Hence, they have been employed to alleviate the evaluation of costly computational geometric algorithms when processing spatial queries. For instance, spatial index structures employ them to organize spatial objects in tree structures (e.g., the R-tree). We report experiments considering two real datasets composed of ∼1.5 million regions and ∼2.7 million lines. The experiments confirm the performance benefits of spatial approximations and spatial index structures. However, we also identify that a second processing step is needed to deliver the final answer and often requires higher processing time than the step that uses index structures only. It leads to the interest in studying how spatial approximations can be efficiently used to improve both steps. This paper presents a systematic review on this topic. As a result, we provide an overview and comparison of existing approaches that propose, evaluate, or make use of spatial approximations to optimize the performance of spatial queries. Further, we characterize them and discuss some future trends.

Second line treatment of recurrent glioblastoma with sunitinib: results of a phase II study and systematic review of literature

2019 ◽  
Vol 63 (4) ◽  
Author(s):  
Salvatore Grisanti ◽  
Vittorio D. Ferrari ◽  
Michela Buglione ◽  
Giorgio M. Agazzi ◽  
Roberto Liserre ◽  
...  
Keyword(s):  
Systematic Review ◽  
Phase Ii ◽  
Phase Ii Study ◽  
Recurrent Glioblastoma ◽  
Line Treatment ◽  
Second Line ◽  
Review Of Literature

Perceived Social Support and Resilience among Orphans: A Systematic Review

2015 ◽  
Vol 3 (1) ◽  
Author(s):  
Syed Najmah Jameel ◽  
Shawkat Ahmad Shah ◽  
Showkat Ahmad Ganaie
Keyword(s):  
Social Support ◽  
Systematic Review ◽  
Perceived Social Support ◽  
Research Problem ◽  
Research Process ◽  
Research Review ◽  
Systematic Research ◽  
Review Of Literature ◽  
Major Objective ◽  
Systematic Identification

The present study is based on a systematic research review. The review of literature is an important component of the research process and should be carried out in an orderly manner. It is also known as the back bone of research study. It involves a systematic identification, location and analysis of documents containing information related to the research problem. The purpose of reviewing literature is to determine what has already done by the scientific community related to the research problem and to gain an impression regarding different aspects of the topic understudy. The major objective of the current study is to conduct a systematic review on Perceived social support and resilience among orphans. To go ahead with this goal, it was very important to collect the literature on; (A). Orphans (B). Perceived social support among orphans. (C). Resilience among orphans.

A Meta Analytic Review of the Relationship between Emotional Intelligence and Leadership Effectiveness

2019 ◽  
Vol 118 (9) ◽  
pp. 118-126
Author(s):  
Augusty P. A ◽  
Jain Mathew
Keyword(s):  
Systematic Review ◽  
Emotional Intelligence ◽  
Direct Relationship ◽  
Effective Leadership ◽  
Leadership Effectiveness ◽  
Meta Analysis ◽  
Correlation Coefficients ◽  
Review Of Literature ◽  
Analytic Review ◽  
The Relationship

The study evaluates the relationship between Emotional Intelligence and Leadership Effectiveness through a Systematic Review of Literature. The relationship has been evaluated in two steps. First, a Systematic review of literature was done to provide a theoretical framework to link the dimensions of Emotional Intelligence to the elements of effective leadership. Meta-analysis was then used to consolidate empirical evidence of the relationship. The studies for the meta-analysis were sourced from Pro Quest and EBSCO and the correlation coefficients of the studies were analysed. Only articles that presented the direct relationship between the variables were included in the study. The results of the analysis revealed a strong, statistically significant relationship between emotional intelligence and effective leadership. The findings of the study provide evidence for the proposition that Emotional Intelligence and Leadership Effectiveness are interrelated.

scholarly journals Correction to: Hemiarthroplasty for neck of femur fractures: to cement or not? A systematic review of literature and meta-analysis

2019 ◽  
Vol 29 (8) ◽  
pp. 1835-1836
Author(s):  
Prasoon Kumar ◽  
Rajesh Kumar Rajnish ◽  
Deepak Neradi ◽  
Vishal Kumar ◽  
Saurabh Agarwal ◽  
...  
Keyword(s):  
Systematic Review ◽  
Meta Analysis ◽  
Review Of Literature ◽  
Neck Of Femur ◽  
Femur Fractures

A Systematic Review on Barriers to Palliative Care in Oncology

2021 ◽  
pp. 104990912098328
Author(s):  
Jyotsana Parajuli ◽  
Judith E. Hupcey
Keyword(s):  
United States ◽  
Systematic Review ◽  
Palliative Care ◽  
Full Text ◽  
Literature Search ◽  
Intervention Development ◽  
The United States ◽  
Care Utilization ◽  
Review Of Literature ◽  
Meta Analyses

The number of people with cancer and the need for palliative care among this population is increasing in the United States. Despite this growing need, several barriers exist to the utilization of palliative care in oncology. The purpose of this study was to synthesize the evidence on the barriers to palliative care utilization in an oncology population. A systematic review of literature was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. PubMed, CINAHL, and Psych Info databases were used for the literature search. Articles were included if they: 1) focused on cancer, (2) examined and discussed barriers to palliative care, and c) were peer reviewed, published in English, and had an accessible full text. A total of 29 studies (8 quantitative, 18 qualitative, and 3 mixed-methods) were identified and synthesized for this review. The sample size of the included studies ranged from 10 participants to 313 participants. The barriers to palliative care were categorized into barriers related to the patient and family, b) barriers related to providers, and c) barriers related to the healthcare system or policy. The factors identified in this review provide guidance for intervention development to mitigate the existing barriers and facilitate the use palliative care in individuals with cancer.

Developing Leadership Talent in Adolescents and Emerging Adults: A Systematic Review

2021 ◽  
pp. 001698622110075
Author(s):  
Melanie S. Meyer ◽  
Anne N. Rinn
Keyword(s):  
Systematic Review ◽  
Emerging Adults ◽  
Gifted Education ◽  
Talent Development ◽  
State Standards ◽  
Database Search ◽  
Future Research ◽  
Review Of Literature ◽  
Leadership Programs ◽  
Service Models

Leadership talent development has been identified as a priority in national and state standards for gifted education. However, leadership programs in schools are not always supported by mandates or funding in individual states and implementation is not always feasible within the constraints of local gifted service models. Although some research has been devoted to leadership for gifted and high-ability adolescents and emerging adults, a limited number of studies on the identification, measurement, and development of leadership talent have been conducted. This systematic review of literature examined existing research on leadership talent development for adolescents and emerging adults. A database search identified 38 quantitative, qualitative, and mixed methods studies that were screened, summarized, and synthesized for discussion. The review highlighted research contexts, definitions of leadership, and themes that captured the recommendations researchers made across studies. Implications for developing leadership talent and suggestions for future research are discussed.

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