scholarly journals Discussion quality diffuses in the digital public square

Author(s):  
George Berry ◽  
Sean J. Taylor

Studies of online social influence have demonstrated that friends have important effects on many types of behavior in a wide variety of settings. However, we know much less about how influence works among relative strangers in digital public squares, despite important conversations happening in such spaces. We present the results of a study on large public Facebook pages where we randomly used two different methods—most recent and social feedback—to order comments on posts. We find that the social feedback condition results in higher quality viewed comments and response comments. After measuring the average quality of comments written by users before the study, we find that social feedback has a positive effect on response quality for both low and high quality commenters. We draw on a theoretical framework of social norms to explain this empirical result. In order to examine the influence mechanism further, we measure the similarity between comments viewed and written during the study, finding that similarity increases for the highest quality contributors under the social feedback condition. This suggests that, in addition to norms, some individuals may respond with increased relevance to high-quality comments.

2012 ◽  
Vol 30 (No. 5) ◽  
pp. 474-482 ◽  
Author(s):  
L. Siříšťová ◽  
Š. Přinosilová ◽  
K. Riddellová ◽  
J. Hajšlová ◽  
K. Melzoch

The production technology of high-quality vodka used in Russia involves filtration through activated charcoal. To approach the quality of renowned Russian vodka, one prominent Czech spirit-producing company installed on its production premises a filtration device including a charcoal column, and launched test runs during which different filtration conditions were tested. Samples collected during the test runs were analysed by GC-FID and GC-MS with the aim to compare their composition; sensory analysis was an integral part of the evaluation. The results documented a positive effect of charcoal filtration on the quality of produced vodka, which was not reduced when higher flow rates were applied.  


Author(s):  
T. A. Drobyshevskya

The article is dedicated to the role of the knowledge-producing sector for the development of innovation economy in Finland. History and structure of the Finnish innovation system, as well as main characters of knowledge-producing sector as a part of the system are in the center of investigation. The author comes to the conclusion that it was the social state model in Finland that made it possible to create the knowledge-producing sector able either to keep a high quality of education of all levels or to maintain a culture of networking diffusion of knowledge and innovation.


2019 ◽  
Vol 26 (3) ◽  
pp. 254-264
Author(s):  
Yujie Zhang ◽  
Lulu Chen ◽  
Kexue Yu ◽  
Yangyong Dai ◽  
Lei Wang ◽  
...  

The purpose of this study is to reveal the mechanism of preparing high quality modified starch by ultrasonic technology. In this paper, ultrasonic modified starch and octenyl succinic anhydride modified starch with low degree of substitution were prepared under ultrasonic conditions, using sweet potato starch as raw material. The effects of ultrasound on the structure and properties of native sweet potato starch were studied to see whether ultrasound could produce mechanochemical effect on starch. Then the mechanism of ultrasonic effect on quality of octenyl succinic anhydride modified starch was studied by mechanochemical effect. The results showed that after ultrasonic treatment for 1 min, the crystallinity decreased from 37.6 to 33.8% and reaction efficiency increased from 49.43 to 54.39%, while after ultrasonic treatments for 8 and 32–60 min had different changes. These changes showed that ultrasonic treatment produced significant mechanochemical effect on native sweet potato starch. Ultrasound significantly improved the quality of octenyl succinic anhydride modified starch, and its influence mechanism was revealed using the theory of mechanochemistry. This study provides a feasible method for the research of high quality modified starch and lays a theoretical foundation for expanding the application of ultrasound in various fields.


2008 ◽  
Vol 51 (1) ◽  
pp. 42-54 ◽  
Author(s):  
M. Kawęcka ◽  
A. Pietruszka ◽  
E. Jacyno ◽  
R. Czarnecki ◽  
M. Kamyczek

Abstract. The study concerned examination of 120 of young Pietrain and Duroc boars and hybrids descending from reciprocal crossing of those breeds. On 230th, 250th and 270th day of their lives, their sperm was given a detailed examination. It is assessed that Pietrain boars gave ejaculates of the lowest volume, lowest mobility, and the lowest total number of spermatozoa. Semen of boars of this group had also the highest percentage of spermatozoa with major and minor morphological changes, and defected acrosome. Along with the age of boars (from 230th to 270th day of life) there was a significant improvement of quality of semen of all of the groups except the semen of Pietrain boars. We detected the positive effect of crossing especially in hybrids boars descending from mating of Duroc fathers and Pietrain mothers. Even during the first evaluation, they gave the semen of the highest total number of normal sperms, with normal acrosome, and with the highest value of osmotic resistance test and the lowest activity of AspAT in semen plasma. That proves the high quality of ejaculates of those hybrids comparing to the ejaculates of the boars of other groups – purebreds as well as hybrids of the opposite combination, i.e. descending from crossing of Pietrain fathers and Duroc mothers. This conclusion suggests to use Duroc fathers and Pietrain mothers in production of hybrid boars.


The objective of this research was to study the correlation berween evaluation knowledge, attitude on sosial studies and teachers made test quality. The population of this reserch was the junior hight schools students in Ambon City. The size of samples was 60 teacher, selected by multi stage random simple technique. The data were collected through questionnaires instruments to attitudes toward the Social Scinence and evaluation knowledge test while the quality of teacher-made tests are judged by five assessors for the validity of the content and results of the students' answers to subsequent empirical validity converted through the t-scores. The result concluded taht there was a positive correlation between (1) evaluation knowledge (X1) and teacher made test quality (Y) with ry1 = 0.79 and Ŷ= 4,85 + 0,57X1. ( 2) there was positive correlation between attitude on social study (X2) and teacher made test quality (Y) with ry2 = 0,79 and Ŷ = 2,71 + 0,45X2. (3) ther was positive correlation of evaluation knowledge (X1), attitude social study (X2) and teacher made test quality (Y) with was shown by correlation coefficient Ry12 = 0,81, and the equwtion of multiple linier regression Ŷ = 1,28 + 0,27X1 + 1,26X2. All the testing done at α = 0,05. Based on the results of this study, it was concluded that the evaluation of knowledge and attitudes towards ilmu pengetahuan sosial either separately or jointly positive effect on the quality of teacher-made tests. this means that the higher knowledge and more positive evaluation of the ilmu pengetahuan sosial, the quality test.


Behaviour ◽  
1989 ◽  
Vol 108 (3-4) ◽  
pp. 209-240 ◽  
Author(s):  
Jürg Lamprecht

AbstractThis study investigated the ways in which young goslings contribute to the proximity between parent and offspring in geese. It sought to detect the rules governing excursions of hand-reared goslings (Anser indicus) from a stationary and non-responding human 'parent' on a large lawn. Distance to the parent and behaviours (distress calling, feeding and others) were monitored during 149 30-min-sessions of 28 goslings (7-19 days old), most of which were accompanied in some sessions by a sibling. Of two additional experiments, one demonstrated the positive effect of sibling group size on maximum distance from the parent, the other showed that distress calling induced by forced separation from the (human) parent was reduced by the presence of siblings. Excursion analysis revealed that the probability of returning to the parent was independent of time and distance. This allowed rejection of some earlier models of excursion control. Only sudden disturbances in the environment (occurring at random with respect to the start of an excursion), forced separation from the parent, and-similarly-the parent's walking away were found to elicit approach to the parent. The speed of leaving the parent was also independent of time and distance. Thus distance was not limited by an increasing locomotor tendency to return. But rate of distress calling increased with distance. Two causes for the goslings' departures were identified: 1) parental non-signalling (by the "mute" parent), which aroused a tendency "to go home", and 2) hunger combined with the tendency to forage in a fixed direction. Return probability, speed of leaving and distress call rate at any given distance were lower when a gosling was accompanied by a sibling, apparently because the social feedback received from the sibling compensated for the parent's non-signalling. In spite of behavioural tendencies which lead a gosling to potentially unlimited distances from its parents, it will not normally get lost, as it returns whenever alarmed or when the parents walk away, and because goose parents tend to join a gosling distress calling at a distance.


Author(s):  
Amy L. Sedivy-Benton ◽  
Andrew Hunt ◽  
Teri L. Hunt ◽  
James M. Fetterly ◽  
Betty K. Wood

This chapter seeks to investigate the common characteristics that make online courses high quality. With an increase in online education and the increased attention to national standards and accreditation, there is a need for research to focus on the quality of online education. The literature related to online education suggests that more studies compare traditional courses with online courses as well as ways to affect the social climate of online courses and programs than the quality of online education. Questions to be considered range from, “How much time do instructors spend developing online courses compared to traditional courses?” to “What are the students’ perspective of the quality of online courses / instruction?” McGorry (2003) suggests seven constructs “to evaluate quality and learning in online courses: flexibility, responsiveness and student support, student learning, interaction, technology and technical support, and student satisfaction” (p. 162).


Author(s):  
Margarita  V. Kravtsova

The work is devoted to the search for answers to the question: “Are there any differences in the public procurement of customers who provide services of different quality?”. The article identifies the stages of the hospital procurement process in the contract system and highlights the main customer strategies used in the auction. The results of an independent quality assessment are examined and comparative hospital characteristics with low and high quality rating are conducted. The hospital needs according to the types of purchases and their annual volumes of contracts are analyzed. The advantages of competitive procedures are determined and the key factors affecting the level of competition with possible risks of unreliable execution of contracts are identified. The empirical study is based on the database which includes 5390 contracts of 2 hospitals in Moscow for years of 2011–2017. Using the methods of econometric analysis, in particular, the method of least squares and the difference in the average, the hypothesis is tested the high competition has a positive effect on the quality of medical services. The constructed regression models show that the customer providing high quality services has low competition and small rebates at the auction. At the same time there are more contract terms, delays in the supply of goods and services as compared with the customer providing low quality services. Thus it was found that the underestimation of competition at the auction indicates the desire of the hospital to guarantee a higher quality of medical services to patients while as aggressive bids of participants lead to the supply of poor purchases. The results of the study may be useful for the competent authorities in the development of legal acts for the participants of the contract system in the field of health procurement.


Author(s):  
Kyriaki Sarri

Employment is considered to have a great impact on people's quality of life. However, it is thought to be one of the major problems adolescents and young adults have to face during their transition to the adulthood. Given their impairments, individuals with ASD face several barriers to their vocational rehabilitation. Yet many of them are capable of being independent and working effectively when they are well supported. Since they deal with several challenges due to their condition, high rates of unemployment or underemployment are very common among them. This chapter provides a view of the barriers that can affect the employment outcomes of this population and strategies (e.g., supported employment programs and technology-based interventions) for overcoming those barriers. In particular, the social deficits that characterize ASD may result in difficulty in developing and maintaining high-quality social skills and competence in communication, which are important for finding employment and staying in a work position.


Author(s):  
Kaisa Koivunen ◽  
Erja Portegijs ◽  
Elina Sillanpää ◽  
Johanna Eronen ◽  
Katja Kokko ◽  
...  

Abstract Purpose Social distancing during the COVID-19 pandemic reduced possibilities for activities of choice potentially threatening quality of life (QoL). We defined QoL resilience as maintaining high quality of life and studied whether walking speed, absence of loneliness, living arrangement, and stress-coping ability predict QoL resilience among older people. Methods Community-dwelling 75-, 80-, and 85-year-old persons (n = 685) were interviewed and examined in 2017–2018 and were followed up during COVID-19 social distancing in 2020. We assessed QoL using the OPQOL-brief scale and set a cut-off for ‘constant high’ based on staying in the highest baseline quartile over the follow-up and categorized all others as having ‘low/moderate’. Perceived restrictiveness of the social distancing recommendations was examined with one item and was categorized as ‘yes’ or ‘no’ restrictiveness. Results Better stress-coping ability (OR 1.21, 95% CI 1.14–1.28) and not being lonely (OR 2.67, 95% CI 1.48–4.63) increased the odds for constant high QoL from before to amid social distancing, and the odds did not differ according to the perceived restrictiveness of the social distancing recommendations. Higher walking speed predicted constant high QoL only among those perceiving restrictiveness (OR 1.16, 95% CI 1.07–1.27). Living arrangement did not predict constant high QoL. Conclusion During social distancing, psychosocial resources helped to maintain good QoL regardless how restrictive the social distancing recommendations were perceived to be. Better physical capacity was important for constant high QoL only among those perceiving restrictiveness presumably because it enabled replacing blocked activities with open outdoor physical activities.


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