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Number of pages: 79 Category: Biology - Environment

Electrical Engineering Master's Thesis - Power Abstract Wind is a suitable and powerful source of energy. Power generation in a variable speed wind turbine is an interesting topic. Because in wind energy converter systems, maximum utilization can be achieved at any speed. But this system needs its parameters to calculate the optimal speed of the turbine. In this thesis, a ...

Number of pages: 125 Category: Electronic Engineering

Dissertation for receiving a master's degree, field of study: electricity-power, orientation: electric machines in a synchronous generator, a dc current is applied to the rotor coil to produce a magnetic field. Then the rotor of the generator is rotated by a prime mover to create a rotating magnetic field in the machine. This magnetic field induces a three-phase voltage in the ...

Number of pages: 127 Category: Electrical Engineering

Dissertation for receiving a master's degree, field of study: electricity-power, orientation: electric machines 1.1 Introduction: In a synchronous generator, a dc current is applied to the rotor coil to produce a magnetic field. Then the rotor of the generator is rotated by a prime mover to create a rotating magnetic field in the machine. This magnetic field induces a ...

Number of pages: 107 Category: Electrical Engineering

Master's Thesis in Electrical Engineering, Power 1-1 Introduction Energy supply sources in the last few decades have been from fossil sources, which until recently have been obtained almost cheaply. Cheap energy sources caused that the optimal use of energy and energy recycling were practically not paid much attention. Due to the energy shortage crisis and the sense of danger ...

Number of pages: 100 Category: Electronic Engineering

Abstract The main task of the synchronous generator excitation system is to provide the necessary voltage for the generator excitation winding. The excitation voltage is a dc voltage and it is used to create a flux in the excitation winding of the generator and consequently to produce a magnetic field to produce electrical energy by a synchronous generator. In the provided ...

Number of pages: 109 Category: Electronic Engineering

Master's Thesis of Electrical Engineering - Power Abstract: Induction motor condition monitoring is an absolutely necessary and important technology to detect various defects at the initial stage. which can prevent the spread of unexpected defects in the initial stages. Approximately 30-40% of induction motor defects are related to stator defects. In this thesis, a comprehensive ...

Number of pages: 110 Category: Electronic Engineering

Master's thesis in the field of electricity-power orientation Abstract Gearboxes are essential and inseparable components of power transmission systems. These machines convert torque into speed and sometimes speed into torque. The use of mechanical gearboxes in these systems has been common since long ago as an interface between the power generation sector and the power ...

Number of pages: 93 Category: Electrical Engineering

Master's Thesis, Electrical Engineering, Power, Abstract: The sliding mode control method is one of the most important non-linear control methods, whose distinctive characteristics are insensitivity to parameter changes, complete rejection of disturbance, and dealing with uncertainty. This controller first brings the system from the initial state using the law of reaching the ...

Number of pages: 106 Category: Electrical Engineering

Master's thesis in the field of electricity-power orientation Abstract Gearboxes are essential and inseparable components of power transmission systems. These machines convert torque into speed and sometimes speed into torque. The use of mechanical gearboxes in these systems has been common since a long time until now as an interface between the power generation sector and the ...

Number of pages: 91 Category: Electrical Engineering

Master's Thesis of Electrical Engineering - Power Abstract: Induction motor condition monitoring is an absolutely necessary and important technology to detect various defects at the initial stage. which can prevent the spread of unexpected defects in the initial stages. Approximately 30-40% of induction motor defects are related to stator defects. In this thesis, a comprehensive ...

Number of pages: 85 Category: Electrical Engineering

Abstract The main task of the synchronous generator excitation system is to provide the necessary voltage for the generator excitation winding. The excitation voltage is a dc voltage and it is used to create a flux in the excitation winding of the generator and consequently to produce a magnetic field to produce electrical energy by a synchronous generator. In the provided ...

Number of pages: 95 Category: Geography - Urban Planning

Dissertation for receiving a master's degree in the field of natural geography, climatology, first chapter, general research 1- 1- Introduction The tourism industry is one of the most important industries for economic growth in developed and developing countries (Font and Ahjem [1], 1999: 63). Currently, many countries receive their economic and social benefits from tourism and ...

Number of pages: 96 Category: Geography - Urban Planning

Dissertation for receiving a master's degree in the field of natural geography, climatology. Abstract: Lake Urmia National Park is considered one of the most interesting and beautiful natural habitats of animals in Iran after the Anzali Marsh. Lake Urmia, due to its natural advantages and God-given gifts, can become one of the important factors in attracting tourists, both ...

Number of pages: 123 Category: Electronic Engineering

Master's Thesis in the field of electrical engineering- control, abstract assessment of the transient stability of power systems using the data of phasor measurement units, quick assessment of security in power networks in emergency situations and the occurrence of various errors, is a vital thing to prevent collapse and create nationwide outages. Therefore, the evaluation ...

Number of pages: 85 Category: Electrical Engineering

Master's thesis in the field of medical engineering, improving the common spatial pattern filtering method to improve the efficiency of brain-computer interface systems. Therefore, this capability can help many sensory-motor patients and solve their problems in relation to their surroundings to a very high extent.

Number of pages: 112 Category: Electrical Engineering

Dissertation for master's degree in electrical engineering, power orientation Abstract: The use of renewable energy to produce electrical energy has increased increasingly with the expansion of the use of flexible alternating current transmission systems (FACTS), to compensate for the quality of power and voltage, the range of use of these energies has increased.

Number of pages: 77 Category: Electronic Engineering

Dissertation for obtaining the master's degree ""M.Sc."" Abstract Mechatronic Engineering Considering the reduction of potable water resources and also the increasing population of cities, the increase in the number of subscribers, the need to increase the speed and accuracy in meter reading and reduce excess costs, in order to achieve modern technologies, extensive research has ...

Number of pages: 79 Category: Electronic Engineering

Dissertation of the master's course in electrical field (M. Sc) orientation: power Abstract: In this thesis, electrical and mechanical defects in electric machines are examined and the factors that cause them and the methods of fixing these defects are stated. After that, with the help of the winding function method of the simulation machine and the intended error, i.e. the ...

Number of pages: 102 Category: Electronic Engineering

Master's Dissertation in Power Electricity Abstract: In electrical networks, costs caused by system losses and defects caused by voltage deviations from permissible limits are among the biggest problems that plague power generation, transmission and distribution. Therefore, reducing the costs of planning and operating power systems, and at the same time, observing its limits and ...

Number of pages: 186 Category: Electronic Engineering

Abstract This thesis deals with uncertainty estimation in robust control of robotic arms and presents new methods based on voltage control strategy for uncertainty estimation. The voltage control method is much simpler compared to the conventional torque control method, because it does not require a complex non-linear model of the robot. As a result, the volume of controller ...

Number of pages: 86 Category: Electronic Engineering

Master's thesis in the field of medical engineering. Abstract: Improvement of common spatial pattern filtering method to improve the efficiency of computer-brain interface systems. Therefore, this capability can help many sensory-motor patients and solve their problems in relation to their surroundings to a very high extent.

Number of pages: 122 Category: Electrical Engineering

Master's Thesis in the field of Electrical Engineering - Control Abstract Evaluation of the transient stability of power systems using the data of phasor measurement units by the efforts of Hanieh Mohammadi Rapid evaluation of security in power networks in emergency situations and the occurrence of various errors is a vital thing to prevent collapse and create nationwide ...

Number of pages: 129 Category: Electrical Engineering

Dissertation for Master's degree (M.Sc) in the field of electrical-power engineering. Abstract In this thesis, the design of a resistant controller in power electronic circuit breakers and its comparison with linear control methods have been examined. The main goal of research and development in this field is always to find the most suitable control method in order to implement ...

Number of pages: 66 Category: Electronic Engineering

Dissertation for obtaining the master's degree ""M.Sc."" Abstract Mechatronic Engineering Considering the reduction of potable water resources and also the increasing population of cities, the increase in the number of subscribers, the need to increase the speed and accuracy in meter reading and reduce excess costs, in order to achieve modern technologies, extensive research has ...

Number of pages: 190 Category: Electronic Engineering

Dissertation for Doctoral Degree Abstract This thesis deals with uncertainty estimation in robust control of robotic arms and presents new methods based on voltage control strategy to estimate uncertainty. The voltage control method is much simpler compared to the conventional torque control method, because it does not require a complex non-linear model of the robot. As a ...

Number of pages: 66 Category: Electrical Engineering

Dissertation of the Master's course in the field of electricity (M. Sc) orientation: power Abstract: In this thesis, electrical and mechanical defects in electric machines are first examined and the factors causing them and the methods of fixing these defects are stated. After that, with the help of the winding function method of the simulation machine and the intended error, ...

Number of pages: 79 Category: Agricultural Engineering

Dissertation for receiving a master's degree in the field of agricultural engineering-horticulture (flowers and ornamental plants) Electromagnetism with a short wavelength and a very high number of oscillations (frequency) is between 300 MHz and several GHz per second. In this research, from the 2M226 magnetron with a wavelength of 12 cm, radiating waves in the frequency band of ...

Number of pages: 73 Category: Medical Sciences

Dissertation for receiving the degree of Doctor of Dentistry Abstract Introduction Considering the importance of milk teeth in creating an ideal occlusion, it is essential to preserve and maintain them due to caries. One of the methods of restoring milk teeth is the use of stainless steel veneers. Maintaining the health of the tissue that supports the teeth is one of the ...

Number of pages: 128 Category: Electrical Engineering

Master's thesis in the field of electrical engineering (power trend) Abstract of the investigation of transient electromagnetic states in wind turbines with the increasing development of wind turbines, increasing its efficiency has become more critical. One of the factors for measuring wind turbine efficiency is its performance in transient state problems. The phenomena that ...

Number of pages: 64 Category: Medical Sciences

Dissertation for obtaining a professional doctorate degree in dentistry Abstract Introduction: One of the common causes of non-surgical root canal treatment failure is the inability to effectively treat all root canals due to the complex anatomy of the root canal system. Due to the fact that so far no comprehensive and extensive study has been conducted on the anatomy of the ...

Number of pages: 101 Category: Electrical Engineering

Master's thesis in the field of electrical-power engineering Abstract: The ground system refers to a set of conductors with different structures that are placed in the ground to protect equipment, human safety against electrocution, prevent unwanted overvoltages and damage to HV equipment. The importance of earth resistance is because it plays an important role in protecting the ...

Number of pages: 170 Category: Mining Engineering

Thesis for receiving a master's degree in mining engineering - mineral processing trend. The abstract of the Golghar Sirjan complex magnetite processing plant includes three circuits of dry crushing and classification, dry magnetic separation and crushing and more magnetic separation. The tonnage of the incoming feed to the factory is 450 tons per hour and the tonnage of the ...

Number of pages: 101 Category: Facilities - Mechanics

In order to obtain a master's degree in the field of mechanical engineering, energy conversion, abstract: In this thesis, the mass and heat transfer by integral method in the flow of natural displacement of a fluid with a very low frontal near the wavy inclined wall and under the magnetic field has been investigated. The wall is permeable and as a result, the fluid can be sucked ...

Number of pages: 110 Category: Electrical Engineering

Dissertation for M.Sc. The tendency of the abstract power transmission networks of modern power systems is increasingly changing due to the increase in demand and limitations in the construction of new lines. One of the consequences of such a stressed system is the risk of losing stability after a disturbance. Flexible alternating current transmission systems (facts) are very ...

Number of pages: 41 Category: Agricultural Engineering

Dissertation for Master's Degree (M.Sc) Field: Horticulture Major: Ornamental Plants Abstract In order to investigate the effect of different waters on the life after harvesting of rose, chrysanthemum and gerbera cut flowers, a factorial experiment was carried out in the form of a completely randomized design in 3 replications with two factors: types of water (magnetic water, ...

Number of pages: 115 Category: Facilities - Mechanics

Dissertation for Master's Degree in Mechanical Engineering (Energy Conversion) Abstract In this thesis, the mass and heat transfer of water-aluminum oxide nanofluid in a two-dimensional porous medium under a magnetic field and in the vicinity of a vertical wall has been investigated. The boundary wall can be permeable or impermeable. The concentration and temperature of the wall ...

Number of pages: 125 Category: Facilities - Mechanics

To obtain a master's degree in mechanical engineering - manufacturing and production. Abstract: The electric discharge machining process is one of the advanced machining processes, which is one of the important applications of this process. Despite the unique applications of this machining method, low chipping rate, high surface roughness, high tool wear rate and environmental ...

Number of pages: 179 Category: Electrical Engineering

Dissertation for obtaining a master's degree in the field of electrical engineering, power orientation Abstract Wind energy will be one of the important sources of electricity in future systems. In this work, an overview of wind energy power electronic control is provided and the development of modern power electronic components is also briefly reviewed. The application of power ...

Number of pages: 83 Category: Civil Engineering

Dissertation for obtaining a master's degree in civil engineering. 2013 Winter Earthquake Abstract of earthquakes close to the fault due to having pulse type movement with a long period at the beginning of the record, including

Number of pages: 123 Category: Civil Engineering

Dissertation for obtaining a master's degree in civil engineering, structural orientation, March 2013, abstract of the scope of using FRP materials for shear strengthening of reinforced concrete beams in

Number of pages: 98 Category: Management

Thesis for obtaining a master's degree in educational management (M.A.) academic year: 1392-93 Abstract: The purpose of this research is to investigate the relationship between the leadership style of educational managers and the mental health of teachers

Number of pages: 140 Category: Civil Engineering

Dissertation for Master's Degree in Civil Engineering/ Cold Water Engineering 1392 1-1- Introduction In this chapter, an overview of the concept of climate change and its causes and the effect of this phenomenon on natural resources and

Number of pages: 155 Category: Management

Master's Thesis in Financial Management and Budgeting, September 2019, abstract according to the duties of the legislator to implement financial supervision in order to properly implement the budget and comply all payments with laws and regulations.

Number of pages: 135 Category: Civil Engineering

In order to receive a master's degree in civil-soil and soil engineering in March 2013, abstract, different methods are used to stabilize pits, among them nailing method and ink method.

Number of pages: 124 Category: Architectural Engineering

Master's Degree in Architectural Engineering (M. A) June 2013 Abstract: This article is taken from a research that aims to identify the factors affecting the communication of spaces.

Number of pages: 167 Category: Architectural Engineering

Dissertation for receiving a master's degree in architectural engineering, specialization: Architecture, July 2019. Abstract Children have a very special place in today's world, as far as the future of nations and their global position can be predicted based on the characteristics of their children. In advanced countries, educational methods are determined for the flourishing of ...

Number of pages: 118 Category: Architectural Engineering

Dissertation for Master's Degree, Field: Architecture, Orientation: Architectural Technology, Spring 2014 Abstract With the formation of cities and the development of cities and communities, the needs and demands of people in the city

Number of pages: 138 Category: Management

Master's thesis in the field of executive management Mehr 2013 Abstract: The issue of corporate social responsibility in the modern economy and in management issues is one of the most prominent issues in the past 20 years.

Number of pages: 223 Category: Management

Dissertation for obtaining a master's degree in public management Human Resources Winter 2013 The aim of this research is to investigate the relationship between the quality of work life and customer relationship management in

Number of pages: 181 Category: Geography - Urban Planning

Dissertation for Master's degree (M.A) Major: Climatology Abstract: Geographically, Iran has little rainfall due to its proximity to the subtropical high pressure center of STHP and the prevailing weather conditions of this system. In the southern regions of the country, as a result of the longer rule of this system, the drought phenomenon becomes more acute. Rainfall changes ...

Number of pages: 141 Category: Librarianship

Accounting training group, academic thesis for obtaining a master's degree, abstract of the company's capital structure is the permanent financing of the company, which is shown by long-term debt and equity. Financing methods for the continuation of activity and the implementation of profitable projects are very effective in the growth process of the company and cause the ...

Number of pages: 190 Category: Social Sciences - Sociology

Master's Thesis of Social Communication Sciences, the field of research in communication. Abstract: Social capital as one of the components of growth and progress in general and social development in particular has received serious attention from social science research areas to measure the quality of social interactions. In general, the amount of social capital in each group or ...

Number of pages: 173 Category: Geography - Urban Planning

Faculty of Basic Sciences, Department of Human Geography, Dissertation for Master's Degree ""M.A"" Major: Rural Planning, Introduction to the investigation of activity platforms, especially agriculture and factors affecting the quality and quantity of its products, which itself plays an effective role in the development of activists and is extremely important. Summarizing the ...

Number of pages: 172 Category: Architectural Engineering

Academic Thesis in Master's Degree in Islamic Architectural Engineering, Summer 1993, Abstract of Historical Textures Considering that in the process of expanding cities from the past to the present, including the documented history of each period

Number of pages: 120 Category: Geography - Urban Planning

Dissertation for master's degree in the Department of Geography and Urban Planning Abstract One of the phenomena that today's cities, especially large cities, are facing is the phenomenon of high-rise construction. The rapid and uncontrolled growth of the population in cities and the consequent need for housing on a large scale, on the one hand, and preventing the horizontal ...

Number of pages: 152 Category: Management

Dissertation for Master's Degree in Public Administration, Financial Orientation Abstract: In recent years, the private sector has gradually tended to use temporary labor contracts in order to escape from the restrictions of the labor law. Under these contracts, workers are hired with contracts of less than 90 days and under the minimums set by the Supreme Labor Council. In this ...

Number of pages: 138 Category: Psychology

Master's Thesis of the Department of Psychology and Education of Exceptional Children Abstract The aim of the present study was to determine the effectiveness of the psychological immunization program on the writing style of dyslexic students. The present study was a pilot study with a pre-test-post-test design with a control group. The research sample consisted of 60 dyslexic ...

Number of pages: 171 Category: Literature - Persian Language

Master's Thesis of Persian Language and Literature Abstract ""Karma"", the law of action and reaction, the law of radiation and its reflection, is an Eastern Sanskrit word that we have defined in detail in the first chapter. We examined this law in Mawlan's Masnavi and Sana'i's Hadiqa al-Haqiqah. Our presupposition was that this law, considering its various aspects and its ...

Number of pages: 110 Category: Economics

Dissertation for Master's Degree in Economic Sciences 2018 Abstract Economic schools have different theories regarding the effect of monetary policies on the real variables of the economy. But all of them have a relationship

Number of pages: 216 Category: Geography - Urban Planning

Dissertation for M.Sc in Geography and Rural Planning Abstract The importance of various issues and issues of villagers and rural settlements, including the issue of moving villages is very important for a vast country like Iran with a variety of natural features (climate, topography) and social, cultural and ethnic differences along with a large number of sparsely populated and ...

Number of pages: 200 Category: Geography - Urban Planning

Dissertation for obtaining a master's degree in the field: Natural Geography, specialization: Geomorphology in environmental planning. The abstract of this research, using the descriptive and analytical method along with library and documentary studies and field observations, investigates the hydrogeomorphology of the Masuleh River basin with an emphasis on the waterfalls of the ...

Number of pages: 121 Category: Geography - Urban Planning

Dissertation for receiving a master's degree in the field of natural geography in the field of climate change. Abstract: With the process of global warming and water resources becoming more valuable due to population growth and the needs of industries and agriculture, numerous investigations have been conducted in line with water conservation and protection programs in line with ...

Number of pages: 197 Category: Geography - Urban Planning

An academic thesis for obtaining a master's degree in the field: Natural Geography - Geomorphology trend in environmental planning, abstract of the mutual effects caused by different resources and living and non-living components in a watershed, the necessity of implementing a systemic and integrated management model in watersheds with the aim of optimal resource efficiency and ...

Number of pages: 115 Category: Economics

1 Introduction Today, customers have high expectations from banks to provide various services. They demand new levels of comfort and flexibility along with the power and ease of use of financial management products and services that traditional banking is not able to provide these services at this level (Tan and Teo [1], 2000). Compared to traditional banking, electronic banking ...

Number of pages: 124 Category: Psychology

Dissertation for Master's Degree (M.A.) Major: General, the relationship between personality traits and emotional intelligence with the driving behavior of intercity bus drivers. Researcher: Arman Minajati. Abstract: The present research is of a descriptive-correlation type, which was conducted with the general purpose of investigating and explaining the predictive role of ...

Number of pages: 162 Category: Educational Sciences

Master's thesis in the field of philosophy of education Abstract Study of professional ethics from the point of view of secondary school counselors The purpose of this research is to investigate the study of professional ethics from the point of view of secondary school counselors. This research was conducted in a qualitative paradigm using the dominant-less dominant model. In ...

Number of pages: 116 Category: Educational Sciences

Dissertation for Master's Degree in Educational Management Abstract of the present research with the aim of determining the relationship between the learning organization and organizational effectiveness in Allameh Tabatabai University in 2013-2014 using the correlation method. The statistical population of this research is all the administrative staff of the faculties of ...

Number of pages: 80 Category: Educational Sciences

Master's Thesis Field: Psychology (M.A) Orientation: Educational Abstract: The present study was conducted with the aim of investigating the relationship between students' resilience and their different personality traits and attachment styles. The statistical population of this descriptive study included all pre-university students of Beshagard city. The sample size was ...

Number of pages: 132 Category: Management

Dissertation for the Master's Degree (M.A) in Public Administration, Financial Orientation Abstract: In this research, the identification and ranking of the factors influencing the attraction of financial resources based on the mixed marketing model in the branches of the Agricultural Bank of Central Province has been investigated. The research method used in this research was ...

Number of pages: 103 Category: Geography - Urban Planning

Dissertation for Master's Degree (M.A) in the field of Natural Geography, Climate Hazards Abstract Dust storms are destructive weather phenomena that cause irreparable damage to urban areas, fields, facilities, roads, etc. every year. This phenomenon is affected by special weather conditions, and if the mechanism of its development and expansion is known, it is possible to ...

Number of pages: 159 Category: Social Sciences - Sociology

Master's thesis in the field of social sciences Today, psychological operations include various methods and techniques, but this meaning cannot be limited to a specific technique or method, from this point of view, psychological operations is a process that affects the audience through various tools and devices, a process that has changed over the centuries and has produced ...

Number of pages: 119 Category: Librarianship

Academic Thesis for Master's degree in the field: Accounting. Abstract: monitoring and controlling the price effect is one of the most dynamic research areas in commercial companies and is expanding rapidly. Examining the effects of block trading can be helpful in understanding how the market responds. The scientific purpose of the research is to investigate the impact of block ...

Number of pages: 110 Category: Psychiatry

Dissertation for Master's Degree in General Psychology Abstract: The purpose of this research was to compare cognitive emotion regulation strategies, attachment styles, self-expression and locus of control in runaway and normal girls. The research method in this study was causal-comparative. The subjects included 36 girls (18 runaway girls and 18 normal girls). The group of ...

Number of pages: 151 Category: Psychology

Dissertation for Master's Degree (M.A.) Orientation: General Abstract: Topic: Explaining the mediating role of coping skills in the relationship between attachment styles and resilience. This study examined the mediating role of coping skills in the relationship between attachment styles and resilience. The investigated sample was 250 male and female high school students of ...

Number of pages: 138 Category: Management

Master's thesis in the field of management, business management, financial management, abstract of the present research has evaluated the acceptance of internet banking by customers using Davis's technology acceptance model. The research method used is descriptive and correlational research. The target statistical population is those who have accounts in Parsian Bank branches in ...

Number of pages: 216 Category: Geography - Urban Planning

Thesis for obtaining a master's degree (M.A) in the field: Geography, tourism planning trend. Abstract Today, tourism and especially nature-based tourism (ecotourism) can play a significant role in the economic development and income generation of human societies, which is different according to the natural dependencies and native habitats of each country. According to its ...

Number of pages: 133 Category: Librarianship

Dissertation for Master's degree (M.A.) Major: Accounting Abstract of the thesis (including summary, objectives, implementation methods and results obtained): Examining the relationship between corporate social responsibility and tax avoidance of companies listed on the Tehran Stock Exchange was determined as the subject of the present research. For this purpose, following the ...

Number of pages: 127 Category: Geography - Urban Planning

Master's thesis in the field of geography - ecotourism trend. Abstract Spending free time is one of the needs of human society. Therefore, the villages around the cities are ecotourism destinations that are basically based on natural attractions. On the other hand, the villages around the cities are increasingly faced with the construction of second homes and the growth of such ...

Number of pages: 269 Category: Social Sciences - Sociology

Dissertation for obtaining a master's degree in the field of social communication sciences, journalism, abstract The positive and open approach of the Qom seminary towards the acceptance of new communication technologies has caused the desire to use the latest communication tools for the purpose of education, research, promotion and effective interaction with the political, ...

Number of pages: 313 Category: Social Sciences - Sociology

Master's Thesis in Social Communication Sciences (M.A) Introduction: Now that the information and communication revolution has spread geographical boundaries and created tremendous changes in the field of globalization, a large volume of information and new knowledge is easily available to everyone through information networks, and it seems that a ""global village"" is being ...