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Article
Publication date: 15 July 2021

Shahid Iqbal Khan and Bilal Ahmad

The purpose of this study is to investigate the impact of post content, post media and post scheduling strategies on online engagement on Twitter in context of micro

Abstract

Purpose

The purpose of this study is to investigate the impact of post content, post media and post scheduling strategies on online engagement on Twitter in context of micro celebrities in Pakistan.

Design/methodology/approach

For this research, micro celebrities of Pakistan have been defined as the target population. Secondary data consisting of 464 tweets from walls of six micro celebrities belonging to both genders and diverse set of socio-political fields was collected. Tweedie estimation analysis was run to accept or reject the hypotheses. Mean values with standard deviations were utilized to analyze the different engagement patterns of dichotomous variables (content type, content language, mentions, hashtags, text, images, links, videos, hour of the day and day of the week) on online engagement.

Findings

Content type, content language, content length, hashtags, mentions, images, links, videos, hour of the day and day of the week have been found to have a significant relationship with online engagement on Twitter.

Research limitations/implications

First, the study has been conducted in context of micro celebrities on Twitter. It did not include influencers on other social media networks. Second, study considered only quantitative aspects of engagement based on secondary data ignoring qualitative aspects of phenomenon due to time and methodology constraints. Third, study did not include link clicks as a measure of engagement as clicks data is not publicly available on the posts.

Practical implications

The study contributes significantly to find out valuable “micro celebrity” strategies in Pakistan. The study suggests micro celebrities to tweet soft content in Urdu language along with relevant hashtags and mentions to get higher engagement on their tweets. Further, tweets should contain maximum number of characters. Micro celebrities should not insert images, links and videos in their tweets as these media types result in lower engagement on Twitter. Micro celebrities should tweet at low hours and weekends.

Social implications

As this study focuses on investigation of better engagement practices for micro celebrities, it will help general public to express themselves more effectively through social media.

Originality/value

First, this is the first study that investigates the online engagement model for micro celebrities. Second, the online engagement model designed in this study has yet not been investigated to best of our knowledge. The theoretical model combines multiple engagement factors discussed in previous studies conducted on Facebook, YouTube, Instagram and Twitter.

Details

Online Information Review, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1468-4527

Keywords

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Article
Publication date: 26 August 2020

Zhaowei Su, Rui Mu, Yonghui Cui, Hongda Zhu, Xuetian Li and Zhongcai Shao

The purpose of this paper is to prepare composite micro-arc oxide coatings with better wear resistance and corrosion resistance.

Abstract

Purpose

The purpose of this paper is to prepare composite micro-arc oxide coatings with better wear resistance and corrosion resistance.

Design/methodology/approach

A nickel powder composite micro-arc oxide film was prepared on the surface of the magnesium alloy by the method of organically combining ultra-fine Ni powder with micro arc oxidation film layer. In this experiment, the changes in the corrosion resistance and microstructure of the composite film layer after adding Ni powder were studied, and the effect of the addition of glycerin on the corrosion resistance of the film layer was analyzed.

Findings

The results show that the ultra-fine nickel powder was successfully prepared by the liquid phase reduction method, and the micro-arc oxidation process was modified under the optimal addition amount. The surface of the micro-arc oxide film made of ultra-fine nickel powder was found by SEM to have smooth surfaces and few holes. According to X-ray diffraction analysis, the phase composition of the micro-arc oxide film layer was Mg, Ni, NiSiO4, MgNi (SiO4) and Mg2SiO4. According to the results of electrochemical tests, the corrosion resistance of the micro-arc oxidation composite film layer was improved after the addition of ultra-fine Ni powder, the corrosion current was greatly reduced and the impedance has been improved. And after adding glycerin, the surface of the film layer becomes denser, and the corrosion resistance of the micro-arc oxide film is significantly improved.

Originality/value

Through this experimental research, a micro-arc oxide coating of powder composite magnesium alloy was successfully prepared. The corrosion resistance of the micro-arc oxidation film layer has been improved, and certain functions had been given to the micro-arc oxidation composite film, which has increased the application field of magnesium alloys.

Details

Anti-Corrosion Methods and Materials, vol. 67 no. 5
Type: Research Article
ISSN: 0003-5599

Keywords

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Article
Publication date: 20 October 2020

Sue Holttum

This paper aims to examine three recent papers on discrimination and exclusion that happen on a day-to-day basis in social interactions, known as micro-aggressions.

Abstract

Purpose

This paper aims to examine three recent papers on discrimination and exclusion that happen on a day-to-day basis in social interactions, known as micro-aggressions.

Design/methodology/approach

The author searched for recent papers on discrimination in the databases Psyc INFO and ASSIA. Three papers were selected addressing a common theme published within the past 24 months.

Findings

All three papers concern a US context. The first reports experiences of women with physical disabilities in relation to micro-aggressions. Based on focus groups with 30 women, micro-aggressions appear to be common and some cause considerable distress. The second paper reports experiences of 65 mental health peer support workers in a range of mental health services and finds micro-aggressions common for them too. The third paper goes beyond occurrence and type of micro-aggressions. Based on existing research, it proposes how members of marginalised racial groups can tackle micro-aggressions, whether they are the target, an ally or a bystander.

Originality/value

These papers show clear examples of micro-aggressions, making them easier to see. While the first two papers are each the first to document micro-aggressions for specific marginalised groups, the third paper is the first to bring together practical ways to tackle micro-aggressions in day-to-day life. There is potential for this to help bring about increased social inclusion and equity for a range of marginalised groups, and for a resultant benefit in the mental and physical well-being of many people.

Details

Mental Health and Social Inclusion, vol. 24 no. 4
Type: Research Article
ISSN: 2042-8308

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Article
Publication date: 16 July 2021

Hafizuddin-Syah Bangaan Abdullah, Rubayah Yakob, Sajiah Yakob and Nuratikah Syafiqah Sharif

Participation in micro-family takāful plans amongst low-income earners remains low despite the various initiatives promoted by the Malaysian Government. Therefore, this…

Abstract

Purpose

Participation in micro-family takāful plans amongst low-income earners remains low despite the various initiatives promoted by the Malaysian Government. Therefore, this study aims to conduct an in-depth examination on the indicators of having micro-takaful tafakul in Malaysia.

Design/methodology/approach

Questionnaires were distributed to respondents residing in Selangor, the state with the highest recorded percentage of low-income earners in Malaysia. Regression analysis was conducted in this study. Demographic characteristics and knowledge were treated as the independent variables, whereas the tendency of having a micro-family takāful plan was considered the dependent variable.

Findings

Gender and knowledge on the benefits of micro-family takāful plans have significant and positive effects on the tendency of having a micro-family takāful plan. Married and employed women are more likely to own a micro-family takāful plan compared with their male counterparts.

Research limitations/implications

This study contributes to the growing literature on the research of micro-takāful determinants in Malaysia.

Practical implications

Industry players and regulators need to tailor the operating and marketing strategies of micro-family takāful plans based on the gender and knowledge of potential participants. The industry may also improve the features of takāful plans to ensure that they are even more attractive and comprehensive.

Originality/value

This study offers a much deeper analysis compared with past research owing to the identified dimensions of a demographic factor that can influence the tendency of having micro-family takāful plans. Besides, this study offers a comprehensive measurement of the knowledge on micro-family takāful plans by considering all aspects (i.e. concept, importance and benefit) of these plans. Moreover, this study examines the influence of each element of knowledge on the tendency of having a micro-family takāful plans, a topic that was rarely studied in the past.

Details

Journal of Islamic Marketing, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1759-0833

Keywords

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Article
Publication date: 26 July 2021

Appel Mahmud, Donghong Ding and Zulqurnain Ali

The micro-level research investigating employees' attitudinal, behavioral and psychological reactions to corporate social responsibility (CSR) has recently been expanded…

Abstract

Purpose

The micro-level research investigating employees' attitudinal, behavioral and psychological reactions to corporate social responsibility (CSR) has recently been expanded within CSR literature. Based on two interrelated social psychological theories, such as the theory of social information processing and the theory of social learning, this study examines the impact of perceived CSR–community (PCSRc; a micro-CSR area) on societal behavior (SB; a micro-level social work) at the employee level of analysis.

Design/methodology/approach

This study recruited 440 bank employees of Bangladesh through a survey method and ran structural equation modeling to test the proposed measurement model and structural relationships in AMOS.

Findings

The study's outcomes report that PCSRc is positively related to SB and CSR engagement (CSRe). CSRe is also positively related to SB, and CSRe mediates the association of PCSRc and SB. CSR positivity (CSRp) moderates the direct relationship between PCSRc and CSRe and the indirect connection between PCSRc and SB via CSRe such that these relationships are significant when CSRp is high as compared to low.

Research limitations/implications

This study focuses on highly educated employees' perception of micro-CSR initiative on micro-level social behavior in a newly emerging market context such as Bangladesh only.

Practical implications

This study's outcomes guide policymakers to adopt CSR policy and its implementation strategies, accordingly, to employees' attitudinal, behavioral and psychological reactions to CSR.

Social implications

This research can be used to steer the behavior of employees within society. It will eventually also have a positive influence on the perception of society toward the organization.

Originality/value

This study's originality is to find CSRe as a new intervening mechanism and CSRp as a new boundary condition of organizational CSR and employees' behavioral outcomes in the micro-CSR literature. The first study investigates the connections of three micro-constructs together, such as a micro (individual)-level analysis, a micro-CSR area and a micro-level social work setting.

Details

International Journal of Emerging Markets, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1746-8809

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Article
Publication date: 5 July 2021

Mohsin Shafi, Yongzhong Yang, Zoya , Liu Junrong, Imran Ur Rahman and Hina Fatima

Though certain characteristics of micro-firms affect the likelihood of their participation in external relationships, how cooperation in craft enterprises differs from low…

Abstract

Purpose

Though certain characteristics of micro-firms affect the likelihood of their participation in external relationships, how cooperation in craft enterprises differs from low and high-tech enterprises has not been investigated yet. Therefore, this study aims to fill the above gap in the literature.

Design/methodology/approach

This study adopts a descriptive approach by extensively reviewing relevant literature to explore the unique characteristics and nature of micro-firm's co-operative behavior. The theoretical approach of this research is grounded in resource-based view and dynamic capabilities theories.

Findings

This study finds that handicraft micro-firms possess special and unique characteristics that differentiate them from low- and high-tech firms. Further, handicraft micro-firms' co-operative behavior also differs from other firms in terms of cooperation motives, breadth, depth and factors that inhibit or promote cooperation. Additionally, in small handicraft firms, the co-operation is more informal, personal and through social networks, whereas in the corporate sector, it is more formal, direct and through supply chains. This study also argues that contrary to handicraft and low-tech firms, high-tech firms are more likely to cooperate with external partners and invest heavily in R&D for new product development (often radical in nature).

Originality/value

This study enriches our understanding of handicraft micro-firms' special and unique characteristics that differentiate them from low- and high-tech micro-firms. This research also provides in-depth knowledge to understand the handicraft micro-firms’ co-operative behavior and how it differs from low- and high-tech firms.

Details

Journal of Enterprising Communities: People and Places in the Global Economy, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1750-6204

Keywords

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Article
Publication date: 7 June 2021

Le Quang Hieu, Vu Hong Van and Nguyen Khanh Doanh

This study analyzes the factors that affect the decisions of micro-businesses to switch to enterprises in Thanh Hoa, Vietnam.

Abstract

Purpose

This study analyzes the factors that affect the decisions of micro-businesses to switch to enterprises in Thanh Hoa, Vietnam.

Design/methodology/approach

In order to explain the behavior of micro-businesses in switching to enterprises, the authors designed a questionnaire and collected survey data from 404 micro-businesses. The generalized structural equation modeling was applied to analyze the structured model with the dichotomous dependent variable.

Findings

First, the behavior of micro-businesses to switch was indirectly affected by needs and directly affected by attitudes, perceived behavioral control, subjective norm and institutional quality. Second, the subjective norms exerted the most influence on the behavior of the micro-businesses in switching. This finding implies that (1) the behavior of the micro-businesses depended on the assessments, perceptions and views of their friends, relatives and colleagues, and (2) the behavior to switch stems mainly from the desire to improve the businesses' position in society. Finally, both formal and informal institutions play an essential role in the behavior of the micro-businesses to switch to enterprises.

Originality/value

There have been no previous studies that have applied structured models to test the behavior of micro-businesses to switch to enterprises. Furthermore, previous studies had mainly addressed the psychological factors or needs of micro-businesses. In this study, apart from the above factors, the authors discuss the impact of institutions on the behavior of micro-businesses to switch.

Details

Asia-Pacific Journal of Business Administration, vol. 13 no. 3
Type: Research Article
ISSN: 1757-4323

Keywords

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Article
Publication date: 15 June 2021

Runyu Chen

Micro-video platforms have gained attention in recent years and have also become an important new channel for merchants to advertise their products. Since little research…

Abstract

Purpose

Micro-video platforms have gained attention in recent years and have also become an important new channel for merchants to advertise their products. Since little research has studied micro-video advertising, this paper aims to fill the research gap by exploring the determinants of micro-video advertising clicks. We form a micro-video advertising click prediction model and demonstrate the effectiveness of the multimodal information extracted from the advertisement producers, commodities being sold and micro-video contents in the prediction task.

Design/methodology/approach

A multimodal analysis framework was conducted based on real-world micro-video advertisement datasets. To better capture the relations between different modalities, we adopt a cooperative learning model to predict the advertising clicks.

Findings

The experimental results show that the features extracted from different data sources can improve the prediction performance. Furthermore, the combination of different modal features (visual, acoustic, textual and numerical) is also worth studying. Compared to classical baseline models, the proposed cooperative learning model significantly outperforms the prediction results, which demonstrates that the relations between modalities are also important in advertising micro-video generation.

Originality/value

To the best of our knowledge, this is the first study analysing micro-video advertising effects. With the help of our advertising click prediction model, advertisement producers (merchants or their partners) can benefit from generating more effective micro-video advertisements. Furthermore, micro-video platforms can apply our prediction results to optimise their advertisement allocation algorithm and better manage network traffic. This research can be of great help for more effective development of the micro-video advertisement industry.

Details

Internet Research, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1066-2243

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Article
Publication date: 10 May 2013

Xiong Liang, Bing Li, Xiaoyu Wu, Hongyan Shi, Kun Zeng and Yatao Wang

The purpose of this paper is to present a method for ultrasonically molding polymer powder in a micro plastic part mold. In the method, a printed circuit board (PCB) in…

Abstract

Purpose

The purpose of this paper is to present a method for ultrasonically molding polymer powder in a micro plastic part mold. In the method, a printed circuit board (PCB) in which micro‐hole arrays are drilled is used as a micro cavity insert. With the utilization of ultrasonic vibration, the polymer powder, which is prefilled and compacted in a micro cavity, mutually generates great sliding friction heat so as to be rapidly plasticized and molded.

Design/methodology/approach

Micro carbide drill bits of which the diameters are 100.0 μm, 150.0 μm and 200.0 μm, respectively, are used for drilling the PCB to form a micro‐hole array insert. Next, two kinds of various ultra‐high molecule weight polyethylene (UHMW‐PE) powder with various grain diameters are directly filled into a charging barrel and a mold cavity with the micro‐hole array insert. Proper process parameters are set on ultrasonic plasticizing and molding equipment so that a molding test can be performed. The melt of UHMW‐PE can be rapidly filled into the cavity. Finally, micro‐column array plastic parts are successfully prepared.

Findings

The micro‐hole array PCB is a mold insert which is quite applicable for the ultrasonic molding of the powder in the mold. When a molding material is the coarse UHMW‐PE powder with the grain diameter of about 350 μm, the diameter replication rates of the micro‐column array plastic parts become good in order with the increased micro‐hole diameter of the PCB. When the fine UHMW‐PE powder with the grain diameter of about 80 μm is adopted, the diameter replication rates of the micro‐column array plastic parts become good in order with the decreased micro‐hole diameter of the PCB.

Originality/value

In this paper, the micro‐column array plastic parts with good replicability are successfully prepared by a technique for ultrasonically plasticizing and molding in the cavity. The technique can be applied to the fields of medical treatment, communication, optics, chemistry and so on, such as biological micro needle arrays, micro biological chips, optical memories, and micro chemical reaction chips.

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Article
Publication date: 1 January 2005

K. Jeevan, G.A. Quadir, K.N. Seetharamu, I.A. Azid and Z.A. Zainal

To determine the optimal dimensions for a stacked micro‐channel using the genetic algorithms (GAs) under different flow constraints.

Abstract

Purpose

To determine the optimal dimensions for a stacked micro‐channel using the genetic algorithms (GAs) under different flow constraints.

Design/methodology/approach

GA is used as an optimization tool for optimizing the thermal resistance of a stacked micro‐channel under different flow constraints obtained by using the one dimensional (1D) and two dimensional (2D) finite element methods (FEM) and by thermal resistance network model as well (proposed by earlier researcher). The 2D FEM is used to study the effect of two dimensional heat conduction in the micro‐channel material. Some parametric studies are carried out to determine the resulting performance of the stacked micro‐channel. Different number of layers of the stacked micro‐channel is also investigated to study its effect on the minimum thermal resistance.

Findings

The results obtained from the 1D FEM analysis compare well with those obtained from the thermal resistance network model. However, the 2D FEM analysis results in lower thermal resistance and, therefore, the importance of considering the conduction in two dimensions in the micro‐channel is highlighted.

Research limitations/implication

The analysis is valid for constant properties fluid and for steady‐state conditions. The top‐most surfaces as well as the side surfaces of the micro‐channel are considered adiabatic.

Practical implications

The method is very useful for practical design of micro‐channel heat‐sinks.

Originality/value

FEM analyses of stacked micro‐channel can be easily implemented in the optimization procedure for obtaining the dimensions of the stacked micro‐channel heat‐sinks for minimum thermal resistance.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 15 no. 1
Type: Research Article
ISSN: 0961-5539

Keywords

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