65 research outputs found
Comparative mechanical performance evaluation of recycled brick aggregate concrete and natural aggregate concrete
No full textThe global increase in construction and demolition (C&D) waste due to natural disasters and urban redevelopment presents a significant environmental challenge. This study evaluates the mechanical performance of reinforced concrete (RC) beams incorporating recycled brick aggregates (RBA) as a sustainable alternative to natural aggregates (NA). Four concrete mixes were tested: 100 % NA, 100 % RBA, and two hybrid combinations of fine and coarse aggregates. RC beams were subjected to four-point bending tests, and companion cylindrical and prismatic specimens were tested for compressive strength and modulus of rupture (MOR). Results indicate that RC beams made with RBA can achieve shear capacities comparable to those made with NA. While beams incorporating coarse brick aggregates showed a more pronounced reduction in shear strength, with values dropping to 53.0 kN, the highest shear strength (71 kN) was observed in mixes using brick fine aggregates and natural coarse aggregates, nearly matching the 70.8 kN of the 100 % NA mix. However, 100 % RBA mixes exhibited a 24 % reduction in compressive strength and a 16 % reduction in MOR compared to NA mixes. Despite these reductions, the structural behavior and failure modes remained consistent across all compositions. From a sustainability perspective, the use of RBA offers a dual benefit: reducing the demand for virgin aggregates and diverting substantial volumes of brick waste from landfills. In regions where C&D waste constitutes a significant portion of total solid waste, adopting RBA concrete could conserve millions of tons of natural resources annually. This study demonstrates the feasibility of using 100 % recycled brick aggregates in structural concrete, supporting a circular economy approach in the construction sector
Intellectual capital performance in the financial sector:Evidence from China, Hong Kong, and Taiwan
No full textIt is no doubt that successful organizations tend to be those that persistently innovate, believing on new technologies and emphasizing on abilities and knowledge of their employees. Knowledge has become one of the most imperative intangible assets of financial institutions in recent years. The aspiring organizations have recognized that Intellectual Capital Efficiency is important in promoting the performance of financial institutions. This paper tests the relationship between intellectual capital and performance using a sample of 76 financial institutions from Mainland China, Hong Kong, and Taiwan over the period 2006–2016. The results show that intellectual capital efficiency has a significant and positive impact on the profitability of financial institutions, while human capital and structural capital are not significantly related to the performance of financial institutions in Taiwan and Hong Kong. The present research extends the knowledge of intellectual capital between managers, academicians, and highlights its contribution to the value creation. These results determine that the financial institutions need to emphasize on the elements of intellectual capital, to enhance the best financial performances in these countries.</p
Financial innovation and economic growth:Empirical evidence from China, India and Pakistan
No full textThis study investigates the causal relationship between financial innovation and economic growth in China, India, and Pakistan over the period of 1970-2016. Using an Autoregressive Distributed Lag (ARDL) bound testing and Granger causality-based Error Correction Model (ECM), this study finds that financial innovation generally has a positive and statistically significant impact on economic growth in the short-run and long-run. These results show that in the long run, monetary management and credit flow to the private sector play an essential role in economic growth. The trade openness and gross capital formation contribute considerably to the economic growth in China, India, and Pakistan. For robustness, this study also applies the Dynamic Ordinary Least Square (DOLS) and Fully Modified Ordinary Least Square (FMOLS) method. The findings of this study suggest that the financial sector plays an essential role in supporting innovation activity in Asian countries.<br/
Effect of zinc concentration on physical properties of copper oxide (Cu1-xZnxO)
No full textZn-doped CuO (Cu1-xZnxO) nano-rods have been prepared by simple chemical solution method, using Cu(CH3COO)(2)center dot 5H(2)O and NaOH as precursors. Prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy, Fourier transform infrared spectroscopy (FTIR) and diffused reflectance spectroscopy (DRS). XRD results showed that grain size of the as-prepared samples increased while strain and dislocation density were found to decrease with the increase in Zn concentration. The absorption bands in FTIR spectra between the region 500-700 cm(-1) indicated the formation of Cu1-x Zn (x) O. The band gap measured from DRS exhibited an increasing trend (1.29-1.43 eV) with increasing Zn concentration. Absorption coefficient for reference sample was calculated to be 5.25 x 10(4) cm(-1) at 600 nm wavelength, and a decrease of 1.14 % was observed as the Zn concentration increased from 0 to 8 %. With maximum value of absorption coefficient and thermal absorptance in visible region, and its band gap energy close to that of an ideal material for photovoltaic conversion efficiency, suggests that Cu1-xZnxO is potentially a good candidate for solar absorption
CEO Characteristics and Valuation of the Organization: A Quantile Regression Analysis
No full textThis study examines the effects of three highly-visible CEO characteristics on a valuation of the organization. Using a sample for Chinese firms over the period of 2007-2016, we find that CEO age is consistently related with lower organizations’ valuation. CEO tenure is also related with lower valuation, but more significantly so in the higher quantiles of organizations’ valuation, that is for organizations with high growth opportunities. The CEO duality is found to be valuable only for organizations with high growth opportunities. Overall, this study highlights the contingent association between CEO characteristics and valuation of the organization.</jats:p
Intellectual Capital Performance in the Financial Sector: Evidence from China, Hong Kong and Taiwan
No full textCrowdfunding A bibliometric analysis and future research Agenda
No full textThis study offers a bibliometric and Scientometric examination of the existing body of literature on crowdfunding. The analysis incorporates a total of 1156 articles from the Scopus database. The data is presented using the bibliometric technique, employing R-studio and VOS viewer software. A Scientometric analysis was undertaken to ascertain the discoveries and patterns of research themes, current and future research orientations, impact, co-occurrence, co-citations, as well as trends in impact and collaboration. The literature on crowdfunding has exhibited significant growth from 2010 to 2023. The number of publications pertaining to crowdfunding has experienced substantial growth between the years 2020 and 2023. The highlighted research trends and collaboration trends encompass various aspects of crowdfunding and resource mobilization, including crowdfunding, fundraising, social capital, peer-to-peer lending, venture capital, and crowdfunding success. Additionally, this study offers an expanded scope for the study based on a comprehensive examination of existing literature. The outcomes of our study have the potential to offer valuable insights for forthcoming scholars, corporations, and regulatory bodies seeking to comprehend the present patterns and anticipated advancements in the field of crowdfunding research
TMT Attention to Innovation of Organizations Influence the Organization Innovation Activities: Moderating Role of Corporate Governance
No full textThis study examines the TMT attention to innovation influences an organizations innovation activities. The results show that the influence of executive attention to innovation on organizations innovation activities is moderated by the characteristics of corporate governance. This study develop and test the hypotheses imitative from the expectation of firm level data covering the period of 2012-2016. The result shows that TMTAI is positively related with an organization’s patent application, and that the positive association is stronger when an organizations is a state owned, has a large members of the board, and has a few independent directors.</jats:p
Frequency and Severity of Perineal tears among women during vaginal delivery
No full textObjective: to arbitrate the frequency and severity of perineal tears among the patients of Vaginal delivery. Study Design: A Cross-sectional Study.Place and Duration of study: Department of Obstetrics and Gynecology Nishtar Hospital Multan and Allied Hospital, Faisalabad from 29 December 2016 to 28 June 2017. Methodology: the study was conducted after obtaining the approval of ethical committee for collecting data from patients. The patients aged 20-40 years were included in the study, both multipara and primipara. An examination was performed on the perineum, vulva, vagina, and cervix at the third stage of labor in order to discover any tears or injuries. All the informations were collected on per designed Performa. Collected data was entered and analyzed by using SPSS software. Results: the incidence of perineal tears was calculated to be 79.89%. The most commonly observed injury was the first-degree perineal tear. it accounted for 101(68.70%) cases. while the second-degree perineal tear was found to be 39(26.53%) cases. third and fourth degree perineal tear remained the least in observed frequency as in 2.72% and 2.04% of cases respectively. Conclusion: The observations of our study concluded that majority of patients delivered vaginally experienced perineal tear, among those first degree perineal tear was more prevalent. KEY WORDS: Perineal tear, perineal trauma, severity of perineal tears
IS BEVACIZUMAB EFFECTVE IN MANAGING CENTRAL SEROUS CHORIORETINOPATHY MANAGEMENT
No full textObjective: To evaluate the efficacy of Bevacizumab in central serous chorioretinopathy (CSCR) Methodology: It is a randomized control trail. The study was conducted in Ophthalmology department of Allied Hospital, Faisalabad and Nishtar Hospital, Multan. From September 2016 to October 2017. Ethical approval was obtained from Hospital Ethics committee. Forty six patients took part in this study. Sample was collected using probability consecutive sampling technique. Computer software SPSS version 23 was used to analyze the data. Frequency and percentage was calculated for the qualitative variables like gender and Chi square test was applied to check the significance and association among variables. P value less than and equal to 0.05 was taken significant. Results: Forty six patients took part in the study belonging to both genders. There were 58.7% male (n=27) and 41.3% females (n=19) when gender distribution was analyzed. Mean and standard deviation for age came out to be 47.17±2.13. The baseline value for visual acuity had mean and standard deviation of 42.82±7.91, while Mean±S.D of visual acuity after treatment was 57.78±4.33. The difference between the means of visual acuity at baseline and after treatment was statistically significant (p=0.001). Similarly mean and standard deviation of central macular thickness before and after treatment was 357.89±96.17 and 149.76±30.19 µm respectively. There was reduction in the mean of central macular thickness after treatment and the difference between the two results was also statistically significant (p=0.001). Conclusion: This study concludes that bevacizumab is significantly effectual in the management of CSC. But more research work in the form of randomized controlled trails is required to evaluate the effectiveness of intravitreal bevacizumab in this condition. Keywords: Bevacizumab, Chorioretinopathy, Visual acuity, Central macular
- …
