scholarly journals Productivité Totale des Firmes Locales, Ouverture Internationale et Spillovers : Une Modélisation Empirique = Total Productivity of Local Firms, International Openness and Spillovers : Empirical Modelling

2016 ◽  
pp. 131-144
Author(s):  
Nouria Kadri ◽  
Abdelkader Derbal
Keyword(s):  
Empirical Modelling ◽  
Total Productivity ◽  
International Openness ◽  
Local Firms

Does international openness affect the productivity of local firms?

2009 ◽  
Vol 17 (3) ◽  
pp. 559-586 ◽  
Author(s):  
Jože P. Damijan ◽  
José de Sousa ◽  
Olivier Lamotte
Keyword(s):  
International Openness ◽  
Local Firms

Empirical Modelling of Confirmed Covid-19 Cases in Nigeria: Forecasts and Implications

2020 ◽  
Author(s):  
Mutiu Abimbola Oyinlola ◽  
Tolulope Osayomi ◽  
Oluwatosin Adeniyi
Keyword(s):  
Empirical Modelling

Is International Openness Associated with Faster Economic Growth?

1998 ◽  
Author(s):  
James Proudman ◽  
Stephen J. Redding ◽  
Marco Bianchi
Keyword(s):  
Economic Growth ◽  
International Openness

A novel approach to the real-time modelling of large urban drainage systems

1997 ◽  
Vol 36 (8-9) ◽  
pp. 19-24 ◽  
Author(s):  
Richard Norreys ◽  
Ian Cluckie
Keyword(s):  
Real Time ◽  
Dynamic Models ◽  
Drainage System ◽  
Radar Data ◽  
Urban Drainage ◽  
Real Time Control ◽  
Empirical Modelling ◽  
Time Control ◽  
Novel Approach ◽  
Non Linear Systems

Conventional UDS models are mechanistic which though appropriate for design purposes are less well suited to real-time control because they are slow running, difficult to calibrate, difficult to re-calibrate in real time and have trouble handling noisy data. At Salford University a novel hybrid of dynamic and empirical modelling has been developed, to combine the speed of the empirical model with the ability to simulate complex and non-linear systems of the mechanistic/dynamic models. This paper details the ‘knowledge acquisition module’ software and how it has been applied to construct a model of a large urban drainage system. The paper goes on to detail how the model has been linked with real-time radar data inputs from the MARS c-band radar.

scholarly journals Maize intercropping in the milpa system. Diversity, extent and importance for nutritional security in the Western Highlands of Guatemala

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Santiago Lopez-Ridaura ◽  
Luis Barba-Escoto ◽  
Cristian A. Reyna-Ramirez ◽  
Carlos Sum ◽  
Natalia Palacios-Rojas ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Farm Households ◽  
Small Scale ◽  
Agricultural System ◽  
Energy Yield ◽  
Common Beans ◽  
Nutritional Security ◽  
Nutrient Adequacy ◽  
Faba Beans ◽  
Total Productivity

AbstractWe present an assessment of the extent, diversity, and nutritional contribution of the milpa through a quantitative analysis of data from a survey conducted in 989 small scale farm households in the Western Highlands of Guatemala (WHG). The milpa is a traditional agricultural system in which maize is intercropped with other species, such as common beans, faba beans, squashes or potatoes. Our study shows that more than two-thirds of the 1,205 plots recorded were under the milpa system, with a great diversity of crop combinations. As shown with the 357 plots for which specific yields were available, milpa systems present higher total productivity than monocropped maize, expressed as total energy yield of the harvested crops in the respective system, and were also better at providing the recommended daily allowances of fourteen essential nutrients, based on a Potential Nutrient Adequacy (PNA) indicator. Maize-bean-potato, maize-potato, and maize-bean-faba intercrops had the highest PNAs, and monocropped maize, the lowest. These results support the implementation of milpa systems tailored to different agro-ecologies in order to improve nutrition in the WHG and a variety of similar regions.

scholarly journals A Study of UVER in Santiago, Chile Based on Long-Term In Situ Measurements (Five Years) and Empirical Modelling

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 368
Author(s):  
Lisdelys González-Rodríguez ◽  
Amauri Pereira de Oliveira ◽  
Lien Rodríguez-López ◽  
Jorge Rosas ◽  
David Contreras ◽  
...  
Keyword(s):  
Urban Areas ◽  
Solar Spectrum ◽  
Sun Exposure ◽  
Great Accuracy ◽  
In Situ Measurements ◽  
Uv Index ◽  
Empirical Modelling ◽  
The People

Ultraviolet radiation is a highly energetic component of the solar spectrum that needs to be monitored because is harmful to life on Earth, especially in areas where the ozone layer has been depleted, like Chile. This work is the first to address the long-term (five-year) behaviour of ultraviolet erythemal radiation (UVER) in Santiago, Chile (33.5° S, 70.7° W, 500 m) using in situ measurements and empirical modelling. Observations indicate that to alert the people on the risks of UVER overexposure, it is necessary to use, in addition to the currently available UV index (UVI), three more erythema indices: standard erythemal doses (SEDs), minimum erythemal doses (MEDs), and sun exposure time (tery). The combination of UVI, SEDs, MEDs, and tery shows that in Santiago, individuals with skin types III and IV are exposed to harmfully high UVER doses for 46% of the time that UVI indicates is safe. Empirical models predicted hourly and daily values UVER in Santiago with great accuracy and can be applied to other Chilean urban areas with similar climate. This research inspires future advances in reconstructing large datasets to analyse the UVER in Central Chile, its trends, and its changes.

Smart cities financing system: An empirical modelling from the European context

Cities ◽  
2021 ◽  
Vol 116 ◽  
pp. 103268
Author(s):  
Mery Blanck ◽  
José Luis Duarte Ribeiro
Keyword(s):  
Smart Cities ◽  
Financing System ◽  
Empirical Modelling ◽  
European Context

PROBLEMS FACED BY SINGAPORE ENTREPRENEURS IN THE FIELD OF BIOTECHNOLOGY

1993 ◽  
Vol 01 (01) ◽  
pp. 133-144 ◽  
Author(s):  
Erin Goh ◽  
Wee-Liang Tan
Keyword(s):  
Food Processing ◽  
Small Firms ◽  
Value Added ◽  
Lag Time ◽  
Government Funding ◽  
Market Place ◽  
Interesting Phenomenon ◽  
Trained Staff ◽  
Short Product ◽  
Local Firms

Biotechnology is one of the fields highlighted by the Economic Committee as an area of high value-added technology which could be developed in Singapore. The recommendation of the Economic Committee was that the venture capital industry be developed to aid in attracting young foreign technological firms to Singapore. Biotechnology includes the areas of pharmaceuticals, chemicals, food processing and agro-technology. A number of local biotechnology businesses have sprung up. This is an interesting phenomenon since biotechnology is difficult ground for small firms to be engaged in. It is usually associated with a long lag time between the development and the actual introduction of the product into the market-place, a need for large sums to be invested in research, and a short product life span, amongst other disadvantages. In an environment where enterprise is only currently being encouraged and entrepreneurship being nurtured, one would not have expected local entrepreneurs to venture into biotechnology. It would therefore be of interest to examine these businesses to see if there are any unique problems that they face by operating in Singapore. This paper proposes to examine the problems encountered by these local firms. Some of the problems ascertained through interviews with local firms concern financing and government funding, and availability of trained staff.

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