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This paper aims to study the relationship between the ball grid array (BGA) flip-chip underfilling process parameter and its void formation region.

A set of top-down scanning acoustic microscope images of BGA underfill is collected and void labelled. The labelled images are trained with a convolutional neural network model, and the performance is evaluated. The model is tested with new images, and the void area with its region is analysed with its dispensing parameter.

All findings were well-validated with reference to the past experimental results regarding dispensing parameters and their quantitative regional formation. As the BGA is non-uniform, 85% of the test samples have void(s) formed in the emptier region. Furthermore, the highest rating factor, valve dispensing pressure with a Gini index of 0.219 and U-type dispensing pattern set of parameters generally form a lower void percentage within the underfilling, although its consistency is difficult to maintain.

This study enabled manufacturers to forecast the void regional formation from its filling parameters and array pattern. The filling pressure, dispensing pattern and BGA relations could provide qualitative insights to understand the void formation region in a flip-chip, enabling the prompt to formulate countermeasures to optimise voiding in a specific area in the underfill.

The void regional formation in a flip-chip underfilling process can be explained quantitatively with indicative parameters such as valve pressure, dispensing pattern and BGA arrangement.

In the hybrid knowledge-sharing platform where paid and nonpaid (“free”) knowledge activities coexist, users’ free knowledge contribution may be influenced by financial factors. From the perspective of opportunity cost, this study investigates the direct effect of how the amount of monetary income from users’ contribution to paid knowledge activities influences their free knowledge contribution behavior in the future. Further, this study aims to verify the interaction effect of financial and nonfinancial factors (i.e. the experience of free knowledge contribution and social recognition) on free knowledge contribution.

Objective data was collected from a hybrid knowledge-sharing platform in China and then analyzed by using zero-inflated negative binomial regression model.

Results show that the amount of monetary income that knowledge suppliers gain from paid knowledge contribution negatively influences their free knowledge contribution. Experience of free knowledge contribution strengthens the negatively main effect, while social recognition has the weakening moderating role.

Although some studies have explored and verified the positive spillover effect of financial incentives on free knowledge contribution, the quantity dimension is ignored. This study examines the hindering influence of the quantity of monetary income from the perspective of opportunity cost. By taking the characteristic of knowledge suppliers and platforms as moderators, this study deepens the understanding of the influence of monetary income on free knowledge contribution in the hybrid knowledge-sharing platform.

This study aims to examine the effects of celebrity negative publicity on attitude towards brand, corporation, brand reputation and corporate reputation, both directly and through the moderating effects of social media involvement, brand commitment, identification and attribution (both types). Associative network theory has been used to explain these effects.

A quantitative survey of 550 respondents was carried out in London and surrounding areas. Structural equation modelling was used to analyse the data.

The findings suggest that celebrity negative publicity affects brand reputation and corporate reputation. Further, the moderating effects of social media involvement and brand commitment on attitude towards brand and corporation, identification on attitude towards brand, attribution types on attitude towards corporation were not found.

To the best of the authors’ knowledge, this is the first paper to examine the effects of celebrity negative publicity on attitudes towards brand, attitude towards corporation, brand reputation and corporation reputation, directly, and through the moderating effects of attribution (both types), identification, commitment and social media. Findings from this study will minimise the gap in the literature on the topic and will help managers and policymakers to understand the effects of celebrity negative publicity in detail.

This research explores the purchasing behavioural drivers of young Chinese consumers purchasing foreign clothing brands. The aim is to include a range of drivers identified by different investigations into a single approach, to determine direct and indirect channels by which these drivers influence purchasing behaviour, and their relative importance in quantitative terms.

The methodology is based on an extended version of the theory of planned behaviour that considers hypotheses based on a number of studies revised in the literature review. This theoretical framework was used as the basis for a questionnaire applied to a sample of 362 young Chinese consumers. A Partial Least Squares Structural Equation Modelling approach was used to analyse the collected data.

The results revealed three main channels influencing purchasing behaviour which were shown to share the same root, corresponding to the influences of the social network young consumers belong to. This result suggests that social norms have a key role in explaining young consumers' purchasing behaviour through its impact on their needs for status and social recognition, their attitudes towards foreign cultures and foreign brands, and their beliefs regarding the attributes of foreign clothing.

The work therefore provides companies operating in the foreign clothing market the confidence to devise business strategies that focus on the channel demonstrating the highest influencing power. A strategy likely to have the highest influencing power is one that uses celebrities to promote the reputation of products and reinforce the messages associated with status and social recognition. Reinforcement of these strategies could include secondary strategies linked to the other channels such as the one related to the adoption of foreign cultural symbolism.

In contrast to the majority of related studies, this investigation also explores indirect channels or paths by which a behavioural driver affects the behaviour of young Chinese consumers. In fact, this investigation not only simultaneously identified the different paths influencing young Chinese consumers purchasing behaviour but also quantitatively identified their relative importance.

To understand how certain cultural dynamics play out in the case, the main attributes of Hofstede and Meyer’s work are first highlight. While Hofstede focuses on national culture, Meyer’s uses culture as a tool by which to gauge behavior within organizations, teams and individuals. Below the main elements of their work are highlighted. Hofstede’s cultural dimensions are detailed in IM Exhibit 1. Note there are six dimensions on a scale of 0–100. The higher the number, the higher that element of that dimension. For example, the individualism score for the USA is 91, whereas China’s score is 20, suggesting that Americans are much more individualistic, whereas the Chinese are much more collectivist. Students can find where the USA, France and China, the three countries discussed in the case, stand at the Hofstede’s website noted below. For reference, these are also noted in IM Exhibit 2.

All of the information in the case was gathered using publicly available secondary sources (i.e. news articles, annual reports and executive/employee interviews). All sources are cited at the end of the Case/IM.

On April 12, 2022, LVMH Moet Hennessy Louis Vuitton (LVMH), the global leader in the personal luxury goods, released first quarter earnings for 2022, highlighting their latest acquisition, the New York City-based Tiffany & Co (Tiffany). Tiffany had performed well due to growth in demand in the USA following two difficult years because of the global COVID-19 pandemic. This underscored the fact that Tiffany was still largely dependent on the US market, which was a cause for concern for CEO, Anthony Ledru, who was brought in by the parent LVMH to elevate Tiffany and exploit the high growth market for personal luxury goods in China and other parts of Asia-Pacific. LVMH’s acquisition of Tiffany had been completed on January 7, 2021, and LVMH was expecting the turnaround of the largely US-centric Tiffany to show results by shifting focus to higher-end and more iconic jewelry lines and greater expansion in China. Nonetheless, Ledru’s ability to address the China market for Tiffany was constrained by culture clashes between the company’s French owners and management team and its large cadre of US-based employees. Employees chaffed at what they felt was a rigid and autocratic management style and at the company’s insistence on limits to a work-from-home policy that was instituted in early 2020 because of the pandemic. Ledru and his top management team had to quickly overcome the internal clashes and employee issues to make significant inroads in the China market.

This case is appropriate for undergraduate and MBA courses addressing dynamics of global business, strategy and culture, such as cross-cultural management, international business, global strategy and organizational behavior. At both levels, its is found that the case will be valuable in generating a lively discussion on organizational and strategic challenges grounded in often lesser discussed issues around cultural fit. In most courses, the case should be positioned toward the end, mainly because it examines both cultural challenges (French ownership of a quintessentially American company) and strategic initiatives (how to grow the brand itself along with geographic expansion, i.e. China), assuming that the module has covered one or the other/or both at different points in the course.

The purpose of this study is to detect the effect of some natural cellulosic polymers in their nano forms with the addition of zinc oxide nanoparticles on restoring the lost mechanical strength of degraded papyrus without any harmful effects on the inks.

In the current study, the USB digital microscopy, scanning electron microscope, measurement of mechanical properties (tensile and elongation), pH measurement, color change and infrared spectroscopy were undertaken for the samples before and after treatment and aging.

In the current study, the USB digital microscopy, scanning electron microscope, measurement of mechanical properties (tensile and elongation), pH measurement, color change and infrared spectroscopy were undertaken for the samples before and after treatment and aging.

The effect of strengthening materials was studied on cellulose and carbon ink, which makes this study closer to reality as the manuscript is the consistent structure of cellulose and inks, whereas most of the literature stated the impact of consolidation materials on the strengthening the cellulosic supports without attention to their impact on inks.

This critical content analysis aims to examine the depiction of oppression in the 2022 Notable Social Studies Trade Books (K-2). From the framework of major types and levels of oppression, this paper sheds light on the rich affordances and problematic representations of oppression.

From the perspectives of an intersectional approach and the framework of oppression, the authors conducted a critical content analysis of the written texts, illustrations and peritexts of the notable books for young readers.

Among the 73 picturebooks, 46 (63%) include representations of oppression in the written texts and/or illustrations. Half of these books depict more than one type of oppression. The most frequently represented oppression is racism, followed by sexism. There are limited depictions of homophobia, transphobia, ableism, ageism, antisemitism and Islamophobia. Nine books (20%) only include the representation of oppression in the peritexts.

This study contributes to anti-oppressive education by offering a theoretical framework of oppression, which emphasizes the interlocking systems of oppression. This framework can help foster a holistic understanding of oppression and dismantle it in a holistic way.

The authors also offer suggestions to help educators curate picturebooks for anti-oppressive social studies education.

This study contributes to anti-oppressive education by offering a theoretical framework of oppression, which emphasizes the interlocking systems of oppression. This framework can help foster a holistic understanding of oppression and dismantle it in a holistic way. The authors also offer suggestions to help educators curate picturebooks for anti-oppressive social studies education.

Social development is the ultimate goal of every nation, and climate change is a major stumbling block. Climate Risk Index has documented several climate change events with their devastations in terms of lives lost and economic cost. This study aims to link the climate change and renewable energy with the social progress of extreme climate affected countries.

This research used the top 50 most climate-affected countries of the decade and estimated the impact of climate risk on social progress with moderation effects of renewable energy and technology. Several competing panel data models such as quantile regression, bootstrap quantile regression and feasible generalized least square are used to generate robust estimates.

The results confirm that climate hazards obstruct socioeconomic progress, but renewable energy and technology can help to mitigate the repercussion. Moreover, improved institutions enhance the social progress of nations.

Government should improve the institutional quality that enhances their performance in terms of Voice and Accountability, Political Stability and Absence of Violence, Government Effectiveness, Regulatory Quality, Rule of Law and Control of Corruption to increase social progress. In addition, society should use renewable energy instead of fossil fuels to avoid environmental degradation and health hazards. Innovation and technology also play an important role in social progress and living standards, so there should be free hand to private business research and development, encouraging research institutes and universities to come forward for innovation and research.

The ultimate goal of all human struggle is to have progress that facilitates human beings to uplift their living standard. One of the best measures that can tell us about a nation’s progress is Social Progress Index (SPI), and one of many factors that can abruptly change it is the climate; so this study is an attempt to link the relationship among these variables and also discuss the situation where the impact of climate can be reduced.

Although social progress is an important concept of today’s economics discussion, relatively few studies are using the SPI to measure social well-being. Similarly, there is consensus about the impact of climate on people, government and crops but relatively less study about its overall impact on social progress, so this study attempts to fill the gap about the relationship between social progress and climate change.

The main contribution of this study is the solution for the impact of climate risk. Climate risk is not in human control, and we cannot eliminate it, but we can reduce the negative impacts of climate change. Moderator impact of renewable energy decreases the negative impact of climate change, so there is a need to use more renewable energy to mitigate the bad consequences of climate on social progress. Another moderator is technology; using technology will also mitigate the negative consequences of the climate, so there is a need to facilitate technological advancement.