Impacts of Aggregation on Relative Performances of Nonsurvey Updating Techniques And Intertemporal Stability of Input–Output Coefficients

In many instances, and for variety of reasons, input–output researchers are compelled to both employ mechanical techniques to update older survey-based tables as well as using more aggregated ones. This combination, however, gives rise to several concerns. The present paper is an attempt to investigate two such questions. First, the effects of aggregation on the accuracy ranking of selected updating methods, and second, the effects of aggregation on intertemporal stability of the input–output coefficients. To probe these issues, three updating methods were selected. These methods are NAÏVE or constant coefficient hypothesis, RAS or biproportional method, and LaGrangian optimization technique. Two survey-based tables from the former Soviet Union along with the selected updating techniques are used to generate updated target year’s direct and inverse transaction matrices at four aggregation levels. Comparison of the resultant estimates at these four levels of aggregation with their counterparts in the actual benchmark table reveals that a higher level of aggregation neither affects the rankings of the updating methods nor does it universally and unequivocally leads to a higher degree of intertemporal stability of input–output coefficients.     

SEM-EDS analysis and discrimination of forensic soil

Soils vary among different areas, and have some characteristics because of the natural effects and transfers made by human and other living beings in time. So that forensic examination of soil is not only concerned with the analysis of naturally occurring rocks, minerals, vegetation, and animal matter. It also includes the detection of such manufactured materials such as ions from synthetic fertilizers and from different environments (e.g., nitrate, phosphate, and sulfate) as environmental artifacts (e.g., lead or objects as glass, paint chips, asphalt, brick fragments, and cinders) whose presence may impart soil with characteristics that will make it unique to a particular location. Many screening and analytical methods have been applied for determining the characteristics which differentiate and discriminate the forensic soil samples but none of them easily standardized. Some of the methods that applied in forensic laboratories in forensic soil discrimination are the color comparison of the normal air-dried (dehumidified) and overheated soil samples, macroscopic observation, and low-power stereo-microscopic observation, determination of anionic composition by capillary electrophoresis (CE), and the elemental composition by scanning electron microscope (SEM)-energy dispersive X-ray spectrometer (EDS) and other high sensitivity techniques. The objective of this study was to show the effect of the application of 9 tonnes/cm2 pressure on the elemental compositions obtained by SEM-EDS technique and comparing the discrimination power of the pressed-homogenized and not homogenized forensic soil samples. For this purpose soil samples from 17 different locations of Istanbul were collected. Aliquots of the well mixed samples were dried in an oven at 110-120 degrees C and sieved by using 0.5 mm sieve and then the undersieve fraction(<0.5 mm) of these samples put on an adhesive tape placed on a stub. About 100-150 mg aliquots of dried, sieved samples were pressed under 9 tonnes/cm2 pressure by KBr disk preparation apparatus of an infrared spectrophotometer. Surfaces of the randomized particles and the pressed disks of the soil samples were scanned and the elemental compositions were determined with scanning electron microscope JEO-JSM-5600 equipped with an energy dispersive X-ray spectrometer OXFORD Link-ISIS-300. The samples from top of the sieves were examined with stereo-microscope equipped with JVC-TK-128DE color video camera and JVC-GV-PT2, digital video printer. Natural and artificial materials that have characteristic features were identified. Then for additional confirmation all soil samples were dried at 120 degrees C and over 780 degrees C and their colors compared. We concluded that pressing the whole sieved soil samples under 9 tonnes/cm2 pressure results in smashing over the harder particles into the softer matrix and results in homogenization of the soil sample. The elemental compositions of these samples obtained by SEM-EDS with 10-fold less standard deviation (S.D.) values and so that with more reproducibility and discrimination power.     

Framework for teachers' acceptance of information and communication technology in Pakistan: Application of the extended UTAUT model

The motive of this research paper is to investigate the teachers' adoption of information and communication technology (ICT) in Pakistan and the application of extended UTAUT model in a new context. A number of factors can cause changes in intention towards the usage of ICT including social, behavioral, and psychological factors, but this study, using the UTAUT model, is limited to examining the behavioral determinants of teachers' acceptance of ICT. To achieve the objective, a quantitative approach was adopted where questionnaire‐based data were obtained for analysis. The analyses were conducted on 341 valid responses that were collected from the teachers of high secondary schools in Khyber Pakhtunkhwa province, Pakistan. Getting the data analyzed through SPSS and AMOS, our results show that performance expectancy, efforts expectancy, social influence, facilitating conditions, and information technology capabilities play a significant role in shaping teachers' adoption of ICT. Moreover, behavioral intentions mediate the relationship between the predictors and ICT usage. Based on the findings of this paper, administrators and government are recommended to spend additional efforts and money by launching programs for their teachers to increase the usage of ICT in their teaching and schools. The study provides numerous insights for teachers, school administrators, and government ICT‐based smart teaching and learning institutions.     

Tea culture and industry: Customer tea buying decision‐making power shaped by social capital in the presence of mutual trust

This study contributes to the literature on tea culture and industry by examining the impact of social capital on customer perception which controls the decision to buy the tea products. Prior research suggests that individual cognition is the most essential element to target to achieve the required tea purchasing decision power. Individuals who socially connect and share views via social media are more likely to share a buy recommendation that psychologically inspires the buying decisions of customers. For present study data were collected through a structured questionnaire from 300 universities students usually use social media to get required information, knowledge and ask from other friends regarding product recommendation which is more trustworthy and easily accessible. The findings of the present study provide new insights into the development of the tea industry and encourage the use of tea products.     

Correction to: Filippo Boni,Sino-Pakistani Relations: Politics,Military and Regional Dynamics

Journal of Chinese Political Science - A Correction to this paper has been published: https://doi.org/10.1007/s11366-020-09722-3     

Stability of Palatal Rugae as a Forensic Marker in Orthodontically Treated Cases

The palatal rugae have been used as a reference landmark and identification marker by orthodontists and forensic analysts. However, the reliability of palatal rugae as a forensic marker remains questionable once an individual is subjected to orthodontic treatment. This study aimed at evaluating the changes in the rugae pattern after nonextraction, extraction, and maxillary expansion orthodontic treatment. The lengths and shapes of palatal rugae were evaluated on the pretreatment and post‐treatment dental casts of 168 subjects using the Thomas and Kotze classification. Extraction treatment significantly reduced the second and third rugae lengths (p < 0.05), whereas the third rugae length was significantly increased after palatal expansion (p < 0.05). The shape of rugae remained consistent in all the study groups which may be used as a reliable forensic marker in subjects undergoing orthodontic treatment. However, the use of the lengths of palatal rugae in forensic odontology must be made with caution.     

Conflict between social structure and legal framework: political corruption in Pakistan

There is a growing body of literature on the conflict between social environment and legal system. This article seeks to unravel the contradiction between Pakistan's anti-corruption laws and its social world. The study of this uncharted territory becomes even more urgent when the consequences of corruption are taken into account in the broader context of Pakistan's internal cohesion, democratic development and sustainable growth. Despite the fact that Pakistan inherited a British legal framework based on the division between public and private spheres, the article argues that a greater part of Pakistani society does not recognise such division. The split between public and private realms which provides a conceptual framework for any definition of political corruption seems culturally deficient. In particular, the paper attempts to demonstrate that ethnic loyalties by taking precedence over the public interest give rise to the ‘moral view of corruption', which explains why many people do not view the use of public office for ethnic gain to be an act of corruption. In these particular circumstances, the paper finds an underlying conflict in the treatment of corruption between the social and legal systems. The disparity between the legal system and social world has given rise to grave concern on the part of civil society.