A Systematic Literature Review on Cyberbullying in Social Media: Taxonomy, Detection Approaches, Datasets, And Future Research Directions

In the area of Natural Language Processing, sentiment analysis, also called opinion mining, aims to extract human thoughts, beliefs, and perceptions from unstructured texts. In the light of social media's rapid growth and the influx of individual comments, reviews and feedback, it has evolved as an attractive, challenging research area. It is one of the most common problems in social media to find toxic textual content.  Anonymity and concealment of identity are common on the Internet for people coming from a wide range of diversity of cultures and beliefs. Having freedom of speech, anonymity, and inadequate social media regulations make cyber toxic environment and cyberbullying significant issues, which require a system of automatic detection and prevention. As far as this is concerned, diverse research is taking place based on different approaches and languages, but a comprehensive analysis to examine them from all angles is lacking. This systematic literature review is therefore conducted with the aim of surveying the research and studies done to date on classification of  cyberbullying based in textual modality by the research community. It states the definition, , taxonomy, properties, outcome of cyberbullying, roles in cyberbullying  along with other forms of bullying and different offensive behavior in social media. This article also shows the latest popular benchmark datasets on cyberbullying, along with their number of classes (Binary/Multiple), reviewing the state-of-the-art methods to detect cyberbullying and abusive content on social media and discuss the factors that drive offenders to indulge in offensive activity, preventive actions to avoid online toxicity, and various cyber laws in different countries. Finally, we identify and discuss the challenges, solutions, additionally future research directions that serve as a reference to overcome cyberbullying in social media

A prospective evaluation of efficacy and safety of topical bromfenac 0.09% over topical flurbiprofen 0.03% after cataract surgery

Background: Different medications are used to reduce pain and inflammation after cataract surgery. Hence this study was taken up to compare the efficacy and safety of topical bromfenac 0.09% over topical flurbiprofen 0.03% in reducing anterior chamber inflammation and pain after cataract surgery.Methods: Total of 100 patients who underwent uneventful cataract surgery with posterior chamber intra ocular lens (IOL) implantation were randomly allocated to receive bromfenac 0.09% and flurbiprofen 0.03% topically from first post-operative day onwards for 6 weeks. Assessment of anterior chamber inflammation and pain was done by slit lamp and visual analogue scale respectively on each follow up days. Analysis was done by unpaired t test and Fischer’s exact test.Results: The response to treatment was earlier in bromfenac group for all the inflammatory changes (significant difference was found on day 7, p<0.05) except for corneal edema where both the groups showed similar response. On 7th day after surgery, 72% patients in flurbiprofen group and 12% in bromfenac group had pain (score1), while on the 14th day none in the bromfenac group complained of pain whereas 4% in flurbiprofen group still had pain. Both the drugs were safe and no clinically serious adverse effects were observed in either of the groups.Conclusions: This study showed both the medications, topical bromfenac 0.09% and topical flurbiprofen 0.03% effective and safe in reducing pain and anterior chamber inflammation after cataract surgery but the response was earlier with bromfenac 0.09%

Assessment of awareness on generic drugs among health care professionals and laypersons

Background: In the present day world the expenditure on medicines is very high. Most of the people in developing countries find it difficult to afford expensive medicines. One of the measures to cut down the expenditure on medicines is to use generic drugs. Hence the study was taken up to know the awareness, attitude and preference for generic drugs among medical and non medical persons.Methods: The study was done on 290 participants. 60 medical interns, 30 doctors, 50 nurses, 50 non medical staff (clerks and attenders) and 100 patients were included. They were given a questionnaire to know the awareness and knowledge on generic drugs, willingness to prescribe (among doctors) and use it (non medical staff and patients).Results: This study showed that all medical persons- doctors, interns and nurses knew about generic drugs whereas 60% of non medical staff and 95% of the patients were not aware about it. All doctors had good knowledge about generic drugs and 80% prescribed it always. 70% of the patients depended on what doctors prescribed for them and never asked for generic/ branded drugs in particular. 70% non medical staff preferred it only sometimes.Conclusions: The awareness among non medical persons is poor than medical persons among the surveyed population. Hence adequate measures should be taken to increase awareness and knowledge among public so that they become imperative enough to ask their doctors to prescribe generic drugs

Strength and Durability of Hybrid Fibre Reinforced Binary Blend Geopolymer Concrete

This paper deals with an investigation on the influence of hybrid fibres on the strength and durability of binary blend geopolymer concrete. Geopolymer concrete was prepared using Fly ash and GGBS as source material and mix design was carried out as per the guidelines of Professor Rangan of Curtin University, Australia. Different fly ash-GGBS proportions namely 50-50%, 60-40%, 70-30%, 80-20% and 90-10% were considered. The tests on Geopolymer concrete reveal that the compressive strength increases as the percentage of GGBS increases up to 30%. Hence the combination of 70% fly ash and 30% GGBS was considered as a base material. In order to improve the engineering properties of the Geopolymer concrete, hybrid fibres which consist of metallic and non-metallic fibres were introduced in the base material. Metallic fibres considered was crimped steel fibres with different percentages of volume fraction viz. 0.5% and 1.0% and non-metallic fibres considered was basalt fibres with different percentages of volume fraction viz. 0.1%, 0.2% and 0.3%. Strength parameters such as compressive strength, split tensile strength, modulus of rupture and modulus of elasticity were obtained for various combinations of steel and basalt fibres. Similarly durability parameters which include permeability, water absorption, marine attack and sulphuric acid attack were also evaluated. The combination of fibres having 0.5% steel and 0.3% basalt gave better results with regard to both strength and durability of binary blend Geopolymer concrete

Impact of educational intervention on pressurized metered dose inhaler technique among undergraduate medical students

Background: Inhaled medications form the cornerstone for the management of Asthma and related diseases. Proper technique of pressurized metered dose Inhalers (pMDIs) has proven to be associated with higher level of control of these conditions. Medical personnel who are responsible for training patients must themselves be proficient with usage of pMDI. This study evaluated the outcome of different educational interventions regarding the correct usage of pMDI.Methods: An interventional study was carried out with 60 second year medical students in department of pharmacology, HIMS, Hassan from June to August 2015. Pre and post intervention (after one week and one month) was evaluated based on National Asthma Education and Prevention Program (NAEPP) criteria for the use of pMDI by written and demonstration methods. The interventions included a video clip, an information leaflet and demonstration by a trained faculty.Results: Overall mean scores in pre-test for written knowledge and skill demonstration are 2.13±1.49 and 3.78±1.06 .There was substantial improvement in post intervention scores 7.15±1.41 and 7.37±1.67 (p<0.05) . Using one way ANOVA, demonstration group has shown statistically significant improvement in mean score compared to video and checklist groups in 1 week (8.8 versus 7.2 and 6.1, p<0.05) and 1 month (8.25 versus 7.1 and 5.7 (p<0.05) after the intervention.Conclusions: Correct usage of pMDI is a necessary skill for health care professionals and can be taught by various methods. The educational intervention by an interactive demonstration has proven to be effective in learning the inhaler technique

A Survey on Cloud Computing,Its Features And Its Security Challenges

Cloud computing is an emerging technology that helps in providing a novel way with excellent facilities to perform computations. Cloud computing can also be known as a distributed computation since resources and applications platform are shared over the internet by means of on-demand service or pay-per-use due to the introduction of many cloud-based services and geographically diverse cloud service provides, sensitive information of multiple various entities are usually stored in remote servers. Due to this the security of the data stored in cloud has to be always high. DOI: 10.17762/ijritcc2321-8169.150310

A STUDY ON EMPLOYEES PERCEPTION ON TALENT MANAGEMENT WITH SPECIAL REFERENCE TYRE INDUSTRIES

Organizations are thought to understand the value of talent management and how it helps workers. Organizations must contend with employee perception hurdles as well. Employees believe that identifying talent inside their current staff fosters unhealthy competition and promotes internal differentiation. Employee demoralization and decreased motivation to perform are the results of employee segregation. HR directors collaborate closely with senior management as business partners to find, select, develop, and keep people. However, when talent travels, the skills gap creates socioeconomic and cultural issues. The present study is carried out to study to study employees’ perception towards the recent strategies in talent acquisition; to identify employees’ perception towards various challenges of talent management; to examine employees’ perception towards retention strategies. The study is descriptive in nature and simple random sampling technique was used to collect primary data from 100 respondents.&nbsp; Data is collected from a structured questionnaire. The filled questionnaires were &nbsp;&nbsp;analyzed using SPSS 23 and MS Excel. Percentage analysis with Correlation Analysis, Chi Square and ANOVA was used to test the data for the framed hypotheses

Nebular-Phase Spectra of Nearby Type Ia Supernovae

We present late-time spectra of eight Type Ia supernovae (SNe Ia) obtained at $>200$ days after peak brightness using the Gemini South and Keck telescopes. All of the SNe Ia in our sample were nearby, well separated from their host galaxy's light, and have early-time photometry and spectroscopy from the Las Cumbres Observatory (LCO). Parameters are derived from the light curves and spectra such as peak brightness, decline rate, photospheric velocity, and the widths and velocities of the forbidden nebular emission lines. We discuss the physical interpretations of these parameters for the individual SNe Ia and the sample in general, including comparisons to well-observed SNe Ia from the literature. There are possible correlations between early-time and late-time spectral features that may indicate an asymmetric explosion, so we discuss our sample of SNe within the context of models for an offset ignition and/or white dwarf collisions. A subset of our late-time spectra are uncontaminated by host emission, and we statistically evaluate our nondetections of H$\alpha$ emission to limit the amount of hydrogen in these systems. Finally, we consider the late-time evolution of the iron emission lines, finding that not all of our SNe follow the established trend of a redward migration at $>200$ days after maximum brightness.Comment: 20 pages, 8 figures, 9 tables; accepted to MNRA

SN 2015U: A Rapidly Evolving and Luminous Type Ibn Supernova

Supernova (SN) 2015U (also known as PSN J07285387+3349106) was discovered in NGC 2388 on 2015 Feb. 11. A rapidly evolving and luminous event, it showed effectively hydrogen-free spectra dominated by relatively narrow helium P-Cygni spectral features and it was classified as a SN Ibn. In this paper we present photometric, spectroscopic, and spectropolarimetric observations of SN 2015U, including a Keck/DEIMOS spectrum (resolution $\approx$ 5000) which fully resolves the optical emission and absorption features. We find that SN 2015U is best understood via models of shock breakout from extended and dense circumstellar material (CSM), likely created by a history of mass loss from the progenitor with an extreme outburst within $\sim$1-2 yr of core collapse (but we do not detect any outburst in our archival imaging of NGC 2388). We argue that the high luminosity of SN 2015U was powered not through $^{56}$Ni decay but via the deposition of kinetic energy into the ejecta/CSM shock interface. Though our analysis is hampered by strong host-galaxy dust obscuration (which likely exhibits multiple components), our dataset makes SN 2015U one of the best-studied Type Ibn supernovae and provides a bridge of understanding to other rapidly fading transients, both luminous and relatively faint.Comment: 20 pages, 15 figures, 4 table