Globalization of Capital Markets: Implications for Firm Strategies

© 2016 Elsevier Inc. The integration of international capital markets makes it easier for firms to access capital outside of their home countries. To date international business (IB) scholars have developed a rich tradition of research on how globalization of product markets may affect a firm's organizational form and business strategy. Unfortunately, there is a paucity of studies that explore the challenges firms face in capital markets beyond their domestic boundaries, be it equity, debt, or venture capital markets. The objective of this Special Issue is to address these theoretical and empirical gaps in prior IB studies. This paper outlines the main differences between product and capital markets, and explores theoretical and empirical challenges these differences present for international management scholars. We also provide a brief summary of papers in the Special Issue and outline promising avenues for future research

Calibrated in-vacuum quantum efficiency system for metallic and III-V thin-film photocathodes

The construction and calibration of a high vacuum system for thin film growth and in situ quantum efficiency (QE) measurement are described. Surface cleaning by in situ argon ion sputtering and annealing is supported. The QE measurement is based on an external 265 nm LED and in situ positively biased collector grid. The system is applied to two metallic and two semiconducting photocathodes: polycrystalline silver and copper, and single crystal InP and InSb. Surface cleaning protocols are shown to have a dramatic effect on the QE for all of these materials. The maximum QE values achieved for clean InSb and InP are around 8 × 10−5, for Cu 9 × 10−5 and for Ag 2 × 10−4

Investigating visibility affordance, knowledge transfer and employee agility performance. A study of enterprise social media

The research analyzes the associations between enterprise social media (ESM) visibility affordance (i.e., message transparency and network translucence) and employee agility performance through knowledge transfer (knowledge acquisition and knowledge provision) in organizations that have applied ESM. Utilizing the communication visibility theory, this study further examines the moderating role of task interdependence in strengthening the interactions between knowledge transfer and employee agility performance. We conducted two studies, one in China (347 samples) and the other in the United States (335 samples) to cross-culturally test our research model. Our results indicate that message transparency and network translucence have significant positive associations with employee agility performance in both studies. The findings also show that knowledge provision mediates the relationships between ESM visibility affordance and employee agility performance in both samples, while knowledge acquisition mediates the association between ESM visibility affordance and employee agility performance in the Chinese sample but not in the U.S. sample. Further, task interdependence moderates the link between knowledge acquisition and employee agility performance in China and the United States. However, task interdependence moderates the relationship between knowledge provision and employee agility performance in China but not in the United States. The implications for theory and management are also discussed

Cytotoxicity and antibacterial activity of fruits extracts of Xylopia aethiopica against some selected beta-lactamase producing bacteria

Xylopia aethiopica commonly known as the West African pepper tree is consumed as food condiment and also used traditionally in the treatment of cough, bronchitis, dysentery and female sterility. Air-dried and ground fruits of Xylopia aethiopica were extracted using ethanol and the recovered extract was partitioned to give chloroform, water, methanol and n-hexane fractions. The five extracts were screened for antibacterial activity against strains of β-lactamase producing bacteria: Escherichia coli, Proteus sp., and Klebsiella pneumonia as well as cytotoxicity against brine shrimp larvae. The result of the antibacterial screening showed that all the extracts exhibited selective activity against Proteus sp., the interface-2 demonstrated the highest activity with diameter of zone of inhibition of 14mm at 1000μg/disc. On the other hand, methanolic extract showed high cytotoxic activity in the brine shrimp lethality bioassay with LC50 value of 3.4μg/mland moderate antibacterial activity with diameter of zone of inhibition of 12mm at 1000μg/ml.Keywords: Xylopiaaethiopica; Extracts; antibacterial activity; β-lactamase producing bacteria; cytotoxicity; brine shrimp lethality bioassa

The dark side of phubbing in the workplace: Investigating the role of intrinsic motivation and the use of enterprise social media (ESM) in a cross-cultural setting

Despite the increasing phenomena of supervisor phubbing (a counterproductive workplace behaviour of managers), very few studies have explored its outcomes in organisations. This study aims to bridge this gap by investigating the relationships between supervisor phubbing and key employee outcomes. We conducted two studies in cross-cultural settings. In Study 1, which was conducted in Pakistan (a collectivistic culture), we collected 370 useable responses through an online survey from the employees working in the service sector organisations. Study 2, which was conducted in the United States of America (an individualistic culture), utilised the Prolific data collection service to gather 352 responses. Our results from both studies reveal that supervisor phubbing is negatively related to employee job performance and work engagement via intrinsic motivation. Further, enterprise social media (ESM) usage in organisations moderates the relationships between supervisor phubbing and its outcomes such that these relationships are weaker for employees whose ESM usage is higher. Our work offers significant contributions to the literature on technology use at workplace as it discusses a counterproductive workplace behaviour of managers (phubbing) and that behaviour’s association with key employee outcomes in organisations while also considering the moderating role of ESM usage in organisations

Antibacterial Activities of Volatile oils from mentha Piperia Against Growth of Pathogenic Bacteria

The study included the extraction of volatile oil from Mentha piperita which was 1.3 % in the leaves and flowers . Volatile oil of the Mentha piperita leaves had special aromatic odour, pale yellow color, slightly pungent taste . The specific gravity and refractive index were (0.9794) and ( 1.464) respectively. The inhibition activity of the Mentha piperita Volatile oil extracts were studied on some pathogenic microorganisms like Staphylococcus aureus, Salmonella typhi, Escherichia coli, Proteus sp, and Klebsiella pneumoniae . The result showed that the volatile oil had an inhibition effect on the growth of all microorganisms, and it gave the higher inhibition effect on the growth of S. aureus in which the inhibition zone reached to 25 mm. also the inhibition zoon on the growth of K. pneumoniae was 20 mm.and it was 17 mm. on the growth of Salmonella.typhi , while the effect was slight on the growth of Proteus sp and E. coli 12,10 mm. respectively. The minimum inhibition concentration (MIC) and the minimum bactericidal concentration (MBC) of the volatile oil extract of the Mentha .piperita leaves, were determined. The value of (MIC, MBC) of Staph. aureus was 0.625 , 1.25 % and the value for (MIC, MBC) of K. pneumoniae? Salmonella typhi were 1.25 , 2.5 % for each of them, while the value of (MIC, MBC) of Proteus sp , E. coli were 2.5 , 5 % respectively

When can Muslims withdraw or withhold life support? A narrative review of Islamic juridical rulings.

When it is ethically justifiable to stop medical treatment? For many Muslim patients, families, and clinicians this ethical question remains a challenging one as Islamic ethico-legal guidance on such matters remains scattered and difficult to interpret. In light of this gap, we conducted a systematic literature review to aggregate rulings from Islamic jurists and juridical councils on whether, and when, it is permitted to withdraw and/or withhold life-sustaining care. A total of 16 fatwās were found, 8 of which were single-author rulings, and 8 represented the collective view of a juridical council. The fatwās are similar in that nearly all judge that Islamic law, provided certain conditions are met, permits abstaining from life-sustaining treatment. Notably, the justifying conditions appear to rely on physician assessment of the clinical prognosis. The fatwās differ when it comes to what conditions justify withdrawing or withholding life- sustaining care. Our analyses suggest that while notions of futility greatly impact the bioethical discourse regarding with holding and/or withdrawal of treatment, the conceptualization of futility lacks nuance. Therefore, clinicians, Islamic jurists, and bioethicists need to come together in order to unify a conception of medical futility and relate it to the ethics of withholding and/or withdrawal of treatment

Central composite rotatable design for optimization of trihalomethane extraction and detection through gas chromatography: a case study

Central composite rotatable design (CCRD) was employed to optimize initial temperature (ºC), ramp function (ºC/min) and salt addition for trihalomethane extraction/quantification from the drinking water distribution network in Ratta Amral, Rawalpindi., Pakistan. Drinking water samples were collected from the treatment plant, overhead reservoir and consumer’s taps. The USEPA method for trihalomethane detection 551.1 via gas chromatography was applied using liquid–liquid extraction. The experiments with input variables for sample preparation and operational conditions were performed in a randomized order as per design of experiment by central composite rotatable design and responses were evaluated for model development. A significant (p = 0.005) two-factor interaction model was optimized. Initial temperature was observed to be insignificant (p = 0.64), while ramp function (p = 0.0043) and salt addition (p = 0.04) were significant. Product of salt addition and ramp was significant (p = 0.004), while product of initial temperature and salt addition was insignificant (p = 0.008). With a desirability function of 0.97, an initial temperature of 50 ºC, 6 ºC rise/min to 180 ºC and 0.5 g salt were optimized. It was found that development and optimization of the analytical methods for rapid trihalomethane detection would improve optimization of the current treatment practices in the country

Optimization of total trihalomethanes' (TTHMs) and their precursors' removal by granulated activated carbon (GAC) and sand dual media by response surface methodology (RSM)

A response surface methodology (RSM) applying central composite design with rotatable full factorial (14 non-center and six center points) was used to discern the effect of granular activated carbon (GAC), sand and pH on total trihalomethanes (TTHMs) and humic acid (HA) removal from drinking water. Results showed efficient TTHMs and HA removal by GAC while a sand column showed little effect for TTHMs but was significant for total organic carbon (TOC) removal. With GAC and a sand column of 4 cm, a pH increase from 6 to 8 caused an increase in TTHM removal from 79.8 to 83.6% while a decrease in HA removal from 26.6 to 6.6% was observed. An increase in GAC column depth from 10 to 20 cm caused a slight increase in TTHM removal from 99.4 to 99.7%, while TOC removal was increased from an average of 38.85% to 57.4% removal. The developed quadratic model for TTHM removal (p = 0.048) and linear model for TOC removal (p = 0.039) were significant. GAC column depth (p < 0.0117) and column depth2 (p < 0.039) were the most significant factors. A 98% TTHMs, 30%TOC and 51% residual chlorine removal were optimized at 9 cm GAC and 4 cm sand column depth at pH 8 with desirability factor (D) 0.64