scholarly journals Model System Dynamics Infrastruktur BTS Ramah Lingkungan Daerah Rural untuk Optimalisasi Perhitungan ARPU

2013 ◽  
Vol 4 (1) ◽  
pp. 172
Author(s):  
Wahyu Sardjono
Keyword(s):  
System Dynamics ◽  
Rural Areas ◽  
Network Capacity ◽  
Corrective Action ◽  
High Rate ◽  
High Tech ◽  
Dynamics Modeling ◽  
Target Revenue ◽  
The Difference ◽  
Save Energy

Green Base transceiver station (BTS) or known as remote BTS is a special BTS with IP technology-based that has a small capacity and takes low power consumption with standard features suitable for use in rural areas. BTS utilizes 100% solar energy as a source of energy. The infrastructure Green BTS is composed of high-tech devices which is able to save energy, environmentally friendly, small and lightweight. The high rate service calls and SMS on green BTS is caused by the absence of competition telecom operators at a site. The solution to this  problem needs to be done with system dynamics modeling approach with the aim to establish causality (cause and effect) between the variables. The standard target of model pattern which has been changed on system dynamics can be used to demonstrate the behavior of the model between the number of subscribers, the availability of network capacity and ARPU (average revenue per user) on the Green BTS site. On the changed standard target model, the actual revenue is placed as the actual event, the target revenue is as a target; the difference between the actual and target revenue is as gap, gap changes are as the pressure on the target and the corrective action taken against revenue as a corrective action. Based on simulation results, the standard model change targets can be developed by adding two negative loops (balancing loop) as an alternative solution towards the achievement of revenue targets that have been set.

scholarly journals Technological Innovation and Value Creation of Enterprise Innovation Ecosystem Based on System Dynamics Modeling

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Peng Zhang ◽  
Enyi Zhou ◽  
Yuyan Lei ◽  
Junsong Bian
Keyword(s):  
Supply Chain ◽  
System Dynamics ◽  
Technological Innovation ◽  
Value Creation ◽  
Graph Model ◽  
High Tech ◽  
Dynamics Modeling ◽  
Innovation Ecosystem ◽  
Enterprise Innovation ◽  
External Acquisition

Based on the analysis of the dynamic interrelationships of enterprise innovation factors according to system dynamics, we build a dynamic causality diagram and a flow graph model of the enterprise innovation ecosystem to study the potential business value creation paths focusing on technological innovation. The system model is simulated using data from high-tech enterprises. Our results show that the model can reasonably simulate the operation of the enterprise innovation ecosystem. Two paths to value creation are identified: (1) input-technological innovation-commercialization of results-value creation; (2) external acquisition of technology-digestion and absorption-value creation as a complementary path. Also, the technological innovation path expands and extends the industrial chain and supply chain of enterprises and better promotes the value creation of enterprises in the same supply chain. Furthermore, our results show that R&D investment and technical cooperation investment should be allocated rationally in order to improve the utility of value creation investment.

Comparative Effects of High-Tech Visual Scene Displays and Low-Tech Isolated Picture Symbols on Engagement From Students With Multiple Disabilities

2019 ◽  
Vol 50 (4) ◽  
pp. 693-702 ◽  
Author(s):  
Christine Holyfield ◽  
Sydney Brooks ◽  
Allison Schluterman
Keyword(s):  
Language Learning ◽  
Augmentative And Alternative Communication ◽  
Visual Analysis ◽  
Multiple Disabilities ◽  
Visual Scene ◽  
Future Research ◽  
High Tech ◽  
Single Subject ◽  
Wide Range ◽  
The Difference

Purpose Augmentative and alternative communication (AAC) is an intervention approach that can promote communication and language in children with multiple disabilities who are beginning communicators. While a wide range of AAC technologies are available, little is known about the comparative effects of specific technology options. Given that engagement can be low for beginning communicators with multiple disabilities, the current study provides initial information about the comparative effects of 2 AAC technology options—high-tech visual scene displays (VSDs) and low-tech isolated picture symbols—on engagement. Method Three elementary-age beginning communicators with multiple disabilities participated. The study used a single-subject, alternating treatment design with each technology serving as a condition. Participants interacted with their school speech-language pathologists using each of the 2 technologies across 5 sessions in a block randomized order. Results According to visual analysis and nonoverlap of all pairs calculations, all 3 participants demonstrated more engagement with the high-tech VSDs than the low-tech isolated picture symbols as measured by their seconds of gaze toward each technology option. Despite the difference in engagement observed, there was no clear difference across the 2 conditions in engagement toward the communication partner or use of the AAC. Conclusions Clinicians can consider measuring engagement when evaluating AAC technology options for children with multiple disabilities and should consider evaluating high-tech VSDs as 1 technology option for them. Future research must explore the extent to which differences in engagement to particular AAC technologies result in differences in communication and language learning over time as might be expected.

Peritoneal Fluid and Plasma Fibrinolytic Activity in Women with Pelvic Inflammatory Disease

1992 ◽  
Vol 68 (02) ◽  
pp. 102-105 ◽  
Author(s):  
P J Dörr ◽  
E J P Brommer ◽  
G Dooijewaard ◽  
H M Vemer
Keyword(s):  
Pelvic Inflammatory Disease ◽  
Inflammatory Disease ◽  
Peritoneal Fluid ◽  
Fibrinolytic Activity ◽  
Degradation Products ◽  
Adhesion Formation ◽  
High Rate ◽  
Control Group ◽  
The Difference ◽  
Fibrinolytic Parameters

SummaryPrevious studies have shown that the fibrinolytic activity of peritoneum is depressed in local inflammation. We measured fibrinolytic parameters in peritoneal fluid and in plasma of 10 women with pelvic inflammatory disease (PID). Nine women, in whom laparoscopy for sterilisation was performed, served as a control group.In the peritoneal fluid of women with PID, PAI-Ag, t-PA-Ag and u-PA-Ag were many times higher than in the control group. In contrast to the antigens which may be present in inert complexes, the potentially active compounds, measured as t-PA activity and plasmin-activable scu-PA, were not significantly different in the two groups, and in none of the samples was the active enzyme tcu-PA detectable. Nevertheless, the mean peritoneal fluid TDP and FbDP concentrations were about twenty times higher in the PID group than in the control group. In plasma of PID patients, none of the parameters except u-PA-Ag differed from those in the control group. The difference between control and patient plasma u-PA-Ag was statistically significant, but too small to attach any relevance to the observation.Our data suggest that, in contrast to the classical concept of decreased fibrinolytic activity as a cause of adhesion formation, intraperitoneal fibrinolysis is enhanced in peritoneal inflammation through stimulation of the local production of t-PA and u-PA. Despite concomitant production of PAI, fibrinolysis occurs at a high rate, resulting in high levels of fibrin degradation products. Since this activated fibrinolysis does not meet the demand, therapeutic enhancement should be considered to prevent adhesions.

Human potential in the system of social and economic development: problems and prospects of Vinnytsia region

2020 ◽  
pp. 71-80
Author(s):  
Olesya Tomchuk
Keyword(s):  
Economic Development ◽  
Human Development ◽  
Rural Areas ◽  
Structural Changes ◽  
Agricultural Sector ◽  
Positive Impact ◽  
Well Being ◽  
Human Potential ◽  
High Tech ◽  
Social And Economic Development

The article highlights the problems and prospects of human development, which is the basis for the long-term strategies of social and economic growth of different countries and regions at the present stage. Submitting strategies of this type provides an opportunity to focus on individual empowerment and to build a favorable environment for effective management decisions in the field of forming, maintaining, and restoring human potential. The analysis of the Vinnytsia region human potential dynamics in the regional system of social and economic development factors was carried out. Application of generalized assessment of the regional human development index components allowed the identification of the main trends that characterize the formation of human potential of the territory, including the reproduction of the population, social environment, comfort and quality of life, well-being, decent work, and education. The article emphasizes that despite some positive changes in the social and economic situation of the region and in assessing the parameters of its human development level relative to other regions of Ukraine, Vinnytsia region is now losing its human potential due to negative demographic situation and migration to other regions and countries. The main reason for such dynamics is proven to be related to the outdated structure of the region's economy, the predominance of the agricultural sector, the lack of progressive transformations in the development of high-tech fields of the economy. An important factor is the low level of urbanization of the region, which leads to the spread of less attractive working conditions and less comfortable living conditions. The key factors that cause the growth of urbanization in the region have been identified, including the significant positive impact of the transport and social infrastructure expansion, the lack of which in rural areas leads to a decrease in the level and comfort of life. Without progressive structural changes in the economy and the resettlement system, the loss of human potential will continue.

scholarly journals A Model of Stress Change under the First COVID-19 Pandemic among the General Public in Japanese Major Cities and Rural Areas

2021 ◽  
Vol 13 (3) ◽  
pp. 1207
Author(s):  
Misato Uehara ◽  
Makoto Fujii ◽  
Kazuki Kobayashi
Keyword(s):  
Rural Areas ◽  
Healthcare Workers ◽  
Explanatory Variable ◽  
Large City ◽  
Stress Change ◽  
Multiple Factor Analysis ◽  
Explanatory Variables ◽  
Private Research ◽  
The Difference ◽  
The Relationship

Research on stress related to the COVID-19 pandemic has been dominated by the cases of healthcare workers, students, patients, and their stress during the COVID-19 pandemic. This study examined the relationship between the amount of stress change under the COVID-19 pandemic and demographic factors (age, sex, occupation, etc.) in residents of a large city and a rural area of Japan. A total of 1331 valid responses were received in June 2020 from residents of Tokyo, Osaka, and Nagano registered with a private research firm. We were able to identify 15 statistically significant variables out of 36 explanatory variables, which explained the significant increase in stress compared to the pre-pandemic period. Multiple-factor analysis showed that the relationship with people is a more significant explanatory variable for the level of increase in stress than the difference in environment between big cities (Tokyo, Osaka) and rural areas (Nagano), the type of housing, and the decrease in income compared to the pre-pandemic period.

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