The present research aimed to investigate the long-run and short-run effects of different sources of financial development on FDI inflow for middle-income economies during the period of study, 1980 to 2020. An annual frequency of data was obtained for the required set of variables from WDI and the IMF. The estimations revealed no cross-sectional dependence, a significant cointegration, and the stationarity of FDI inflow at first difference, while the explanatory and controlled variables were as mixed level. It validated the panel ARDL estimations methods such as mean group, pooled mean group, and a dynamic fixed effect for testing the required set of hypotheses. The Hausman test confirmed the consistency and efficiency of the dynamic fixed effect as the method of estimations. The panel estimations revealed the significance of financial market development, inflation rate, trade openness, and real economic growth as the most critical factors for FDI inflow in middle-income economies. The policymakers should consider these factors for making their policies regarding FDI inflow in their economies. Future research may consider time series ARDL for each independent middle-income country. The findings of the study are generalized only to middle-income economies rather than higher-income and lower-income countries.
The study examines the effect of sustainable economic growth on “FDI inflow” using comparative panel econometrics on two panels: “low-income” and “middle-income” economies between 1970 and 2021. For this, 18 “low-income” and 53 “middle-income” economies constitute the sample. The data were retrieved from the “world development indicator” website. Pre-diagnostic and post-diagnostic estimations were performed using static panel and dynamic panel approaches. Sustainable growth increases “FDI inflow” in “low-income” and “middle-income” economies during the study period, according to the findings. In addition, trade openness and the exchange rate have the potential to boost “FDI inflow” in “low-income” economies. Similarly, in “middle-income” economies, the real growth rate and exchange rate are significant boosts, however inflation significantly reduces the “FDI inflow”. The findings show that policymakers in “low-income” and “middle-income” economies should maintain long-term, sustainable economic growth in order to attract more “FDI inflow” in their respective economies. Compared to the current state of knowledge in the subject, the study’s findings provide evidence for “low-income” and “middle-income” nations that have been mainly overlooked in terms of sustainable growth for attracting FDI inflow. The study’s outcomes are applicable and generalizable only for “middle-income” and “low-income” economies. Future researchers may include additional control factors and expand the scope of the study to include “high-income” groups.
A digital sound system resembles the wireless network link transmission system. A wireless network link is affected by several disturbing factors: fading, attenuation, non-linear distortion and noise. These factors are also unavoidable in acoustic echo cancellation. A few number of digital adaptive filter algorithms are approached to detect and cancel the noise in a system. Among these algorithms Least Mean Square, Block Frequency Domain Adaptive Filter and Kalman Filter are widely used to predict and remove the noise or unwanted signals. It is found that performances of these filters varied and depends upon the system of application. Therefore, a detailed performance analysis is exigent. The goal of this paper is to use an approach to analyze and figure out the best performed filter by performance evaluation in the context of acoustic echo cancellation
Introduction: Cervical cancer is the most common form of cancer in women in developing countries and the second most common form of cancer in the world as a whole. An estimated 468,000 new cases of cervical cancer and 233,000 deaths occurred in the year 2000. Cervical cancer constitutes about 26 % of female cancer in different areas of Bangladesh. Objective: To find out the role of VIA for the detection of precancerous and early cancerous lesions of the cervix with co-relation of Colposcopic findings and ultimate. Methods: A prospective study was conducted from January, 2010 to June 2010 on 100 women attending at the "Colposcopy Clinic" of Gynae Oncology Division of Department of Obstetrics and Gynaecology of BSMMU, Dhaka. Only VIA positive cases were taken into consideration for the study. Results: The mean age of the participants were 33.39 years (range 18-60) with 41.0 % in the age group between 36-45 years. Among all the subjects, the majority (75%) was housewives and 70.0% the patients hailed from urban area. The yearly incomes of 46% families were between 50,000 to 60,000 Tk. The mean parity of the respondents was 1.75 and 4. More than 4 children were found in 14% cases. Up to 35.0% had 2 children only. About 46.0 % had experienced menarche at the age 13 years and the range was 12-14 years. In regard to risk factors, 64% used hormonal methods. Among the participants 80% experienced first coitus of age between 13-20 years. Excessive vaginal discharge and backache were the principal complaints. Colposcopy evaluated 65 cases as CIN (CIN I 34 %, CIN 11-17%, CIN-III 14%) and 3.0% as invasive lesions. Biopsy evaluated 45% as CIN (CIN I-20% CIN-15%, CIN-III 10%) and 1% as invasive lesions. The sensitivity and specificity of colposcopy were 82.14 % and 50.00% respectively. This suggests the role of colposcopy in the evaluation of CIN and cervical cancer. Conclusion: The study concludes that the VIA and colposcopy are the important methods of diagnostic tools for the diagnosis of cervical pre-malignancy. VIA may be used as a tool for screening in underdeveloped countries and may be associated with a referral procedure for further methods like colposcopy and biopsy. Colposcopy is an indispensable procedure in the evaluation of unhealthy cervix through it requires considerable training and experience.
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