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Urban managers increasingly focus on establishing the city as a brand to ensure a competitive force that enables the city to position itself at home and abroad. The purpose of this paper is to analyze the development of city branding from the market orientation of the capital cities of Spain's regional Autonomous Communities.

The analysis uses a set of variables representing the different aspects that shape market orientation, and variables related to the development and implementation of city branding strategies. The methodology for collecting information on the cities under study is based on content analysis, and its specific application to the analysis of websites.

The research carried out reveals the existence of four distinct groups of Spain's cities that can be differentiated in terms of the importance that they give to the different areas of market orientation and the development of city branding strategies.

The cities considered give an insight into the strategies of brand creation and development at major Spanish cities but tell nothing about secondary cities. The scope of the study is purely domestic. The authors intend to expand it to include cities elsewhere in Europe, to enable comparisons to be drawn of the processes of creation and development of city branding in different countries. The municipal web sites used as a source of information show some volatility, and as a result need to be reviewed from time to time.

Although web sites as marketing tools offer significant advantages, such as accessibility of information, provision of relevant information, handling of complaints, low cost, and customer service, there has been very little research into their role in urban management. Using the content provided by each municipality's official web site as a source, this paper offers a different perspective which complements research performed through other methods.

Wide-bandgap (WBG) semiconductors have emerged as a disruptive technology in the power electronics sphere. This paper aims to analyse and discuss the importance for induction heating systems and gives some examples and highlights some future design trends and perspectives.

The benefits of WBG semiconductors are reviewed with a special emphasis on induction heating applications.

WBG devices enable the design of higher-performance induction heating power supplies. A significant selection of the reported converters is discussed, highlighting the benefits of this technology.

This paper highlights the benefits of WBG semiconductors and their potential to change and improve induction heating technology in the next years.

Litz wire manufacturing using mechanical procedures presents several limitations regarding reliability and repeatability, especially when a small strand diameter is used. This paper aims to propose a power supply design for Litz wire manufacturing using a high-frequency high-performance resonant converter.

This paper proposes the design of a resonant power supply for induction heating specially designed to tackle with the challenge of heating Litz wires quickly.

The proposed converter enables the removal of the isolating coating from the Litz wire through induction heating, improving significantly the manufacturing process.

The proposed converter improves significantly the manufacturing process of Litz wire through induction heating, with economic and reliability benefits.

The purpose of this paper is to develop a load detection method for domestic induction cooktops. The solution aims to minimize its impact in the converter power transmission while enabling the estimation of the equivalent electrical parameters of the load. This method is suitable for a multi-output resonant inverter topology with shared power devices.

The considered multi-output converter presents power devices that are shared between several loads. Thus, applying load detection methods in the literature requires a halt in the power transfer to ensuring safe operation. The proposed method uses a complementary short-voltage pulse to excite the induction heating (IH) coil without stopping the power transfer to the remaining IH loads. With the current through the coil and the analytical equations, the equivalent inductance and resistance of the load is estimated. The precision of the method has been evaluated by simulation, and experimental results are provided.

The measurement of the current through the induction coil as a response to a short-time single-pulse voltage variation provides enough information to estimate the load equivalent parameters, allowing to differentiate between no-load, non-suitable IH load and suitable IH load situations.

The proposed method provides a solution for load detection without requiring additional circuitry. It aims for low power transmission to the load and ensures zero-voltage switching and reduced peak current even in no-load cases. Moreover, the proposed solution is extensible to less complex converters, as the half bridge.

This paper aims to identify the main dimensions that determine the ability of cities to compete as locations for business and hubs for investment which can help policymakers to manage and prioritize urban development strategies.

A composite indicator is proposed as a weighted aggregate of sub-indicators for the identified component dimensions (basic, efficiency-related and innovation-related competitiveness). The indicator is used to draw up a ranking of 159 European Large Urban Zones (LUZs) located in 26 EU countries based on 31 indicators, broken down into the three core dimensions of urban competitiveness identified.

The dimensions underlying urban competitiveness in relation to the location of firms and attracting investment determine the level of economic development of the LUZs. The most competitive cities in the sample have a high level of economic development, and the innovation dimension is the most significant one for the three groups of cities considered, followed by the efficiency dimension and, to a lesser extent, the basic dimension.

The findings provide guidance to policymakers on the most relevant dimensions for urban competitiveness.

This paper contributes to the literature shedding light on the complex relationships between efficiency-related and innovation-related factors with regard to urban competitiveness.

Induction heating applications aided by power electronic control have become very attractive in the recent past. For cooking applications, power electronics circuits are very suitable to feed power to multi loads with an appropriate control technique. The purpose of this paper is to develop a three leg inverter to feed power to three loads simultaneously and independently.

Pulse density modulation control technique is used to control the output power independently with constant switching frequency.

Multi-load handling converter with independent power control is achieved with reduced number of switching devices (two switches/per load) with simple control strategy.

The proposed system is simulated in MATLAB/Simulink, and the thermal analysis is carried out in COMSOL multi-physics software. The hardware realisation is performed for a 1 kW prototype with 20 kHz switching frequency and 10 kHz pulse density modulation frequency. PIC16F877A microcontroller is used to validate the experimental results for various values of control signals (D_PDM). The simulation and experimental results are in good agreement and validates the developed system.

This study aims to evaluate the carbohydrate content, ingredient profile and degree of processing of supposedly “low-carb” foods in the Brazilian market.

Information was collected from physical supermarkets in Divinópolis, Minas Gerais and on websites throughout Brazil between July and September/2020. The carbohydrate content was assessed in g/100 g, and ingredient lists were investigated for the presence of carbohydrate-rich ingredients. The degree of processing of the products was evaluated by NOVA classification to determine whether the term “low carb” had been translated into Portuguese.

This study evaluated a total number of 164 products, the most frequent were bakery products (34.7%), granola and cereal bars (19.5%) and candies and desserts (14.0%). This claim was also found in low-carb foods such as cheese and chicken. Most food products evaluated (56.0%) were classified as ultra-processed, with the group having the highest carbohydrate content (20.0; 3.0–47.5g/100g), compared to products classified as processed foods (p < 0.01). The ingredient lists showed items rich in carbohydrates, such as cassava and corn derivatives. In 162 products, a low-carb claim was displayed without translation into Portuguese. These data demonstrate that most of these products are ultra-processed and have a high glycidic content.

To the best of the authors’ knowledge, the study was a pioneer investigation of the ingredients of “low-carb” foods, their carbohydrate composition and their degree of processing based on the NOVA classification.