MassChallenge

CloEE is an AI digital advisor focused on enhancing sustainability and operational efficiency in discrete manufacturing. By utilizing generative AI, it provides real-time data analysis from manufacturing equipment, as well as manufacturing execution systems and enterprise resource planning systems. CloEE aims to improve Overall Equipment Effectiveness (OEE), significantly reduce energy consumption by 30%, and minimize emergency stops by 95%. The platform offers quick and cost-free project implementation, facilitating manufacturers in saving time and money while addressing critical challenges such as production downtime, delivery delays, and high defect rates. Having connected 25,000 machines across 25 countries, CloEE promotes a new model for efficiency and emission management, ultimately helping manufacturers reduce carbon emissions and drive annual revenue growth.

Tespack Ltd. is a Finnish company that specializes in mobile energy solutions, providing a variety of products such as ultra-light batteries, solar panels, smartpacks, backpacks, and portable chargers. Founded in 2013 and based in Helsinki, Tespack focuses on creating smart mobile micro-grids for challenging markets, particularly for off-grid usage. The company employs advanced software, deep learning technology, and proprietary hardware to deliver reliable and sustainable energy infrastructure in remote locations. Tespack's mission includes addressing critical battery management challenges, such as enhancing battery recycling accuracy and monitoring battery performance. Its products are distributed across various European countries through distributors, retailers, and online sales, catering to remote workers, adventurers, and disaster relief efforts.

Pointz is a mobile mapping application that assists bike and scooter riders in navigating safe routes within urban environments. The app employs a proprietary routing algorithm that prioritizes paths on a distinctive 'quiet network' composed of residential side streets, protected bike lanes, and other bike-friendly roads. By leveraging both road data and crowdsourced information, Pointz enables users to find low-stress and low-traffic routes, enhancing their overall riding experience in cities.

A privately-funded surface transportation network with the convenience, capacity, and cost to replace buses, trains, cars, trucks, and short flights.

MellowVans specializes in electric delivery vehicles designed for efficient last-mile delivery in urban environments. Their vehicles are distinguished by their large cargo capacity, capable of accommodating 2.4 cubic meters, and provide over 100 kilometers of range on a single charge. With operational costs of less than a dollar per day, MellowVans offers a cost-effective solution for e-commerce businesses seeking to enhance their delivery services. The vehicles also feature regenerative braking and an integrated IoT system that facilitates data generation and route planning, further improving delivery efficiency and reducing emissions. MellowVans aims to transform urban logistics with its attractive and high-performance electric vehicles, ensuring a sustainable and economical approach to urban deliveries.

Urban Connect is a corporate mobility platform offering company employees access to a fleet of low-carbon, shared vehicles like e-bikes, bikes, e-scooters and e-cars. The offering is structured as a mobility-as-a-service (MaaS) solution. The company services large blue chip clients like Roche, Avaloq, Hilti, Sonova or Zurich Insurance. The team is composed of a number of people from different nationalities & backgrounds, all with the common goal of helping companies reduce their carbon and space footprints.

Next Pet helps municipalities to build a healthier, safer, and smarter pet community. It connects pets and pet owners by providing a web and mobile platform where they can help each other, save money, and time. GoPetie is revolutionizing the pet licensing and animal control functions within cities and towns with a next-generation software that utilizes the world's first mobile licensing platform integrates remote pet photo recognition and a lost pet recovery service. It was founded in 2015 and is headquartered in Cambridge, Massachusetts.

Droople is a company focused on advancing water management technology to enhance water conservation and usage efficiency. It offers an innovative water intelligence platform that integrates Internet of Things technology with artificial intelligence, allowing for real-time analysis of water consumption and leak detection. The company's retrofittable, AI-embedded devices utilize a fog computing architecture to provide insights that help individuals and businesses manage their water resources more effectively. By equipping water asset manufacturers, operators, and building owners with essential tools, Droople aims to foster a sustainable future by promoting responsible water use and minimizing pollution.

Grapheal is a Medtech startup focused on developing embedded and wearable biosensors that leverage graphene transistors for enhanced functionality. Their devices are designed to be minimalistic and digital, enabling the dosing of biomarkers and detection of pathogens through a smartphone interface. By integrating advanced sensing nanomaterials with wireless connectivity and data analysis capabilities, Grapheal's biosensors facilitate field diagnostics and remote patient monitoring. This approach aims to make healthcare more accessible and accurate, allowing medical professionals to effectively monitor patient progress and healing.

SoliDrip has developed an innovative irrigation technology that empowers plants to manage their own watering needs. This autonomous irrigation system is suitable for both outdoor and indoor gardens of any size, providing each plant with the precise amount of water it requires while automatically responding to environmental changes. The system is designed to conserve clean water, minimize runoff damage, and significantly lower maintenance costs for gardens. Additionally, SoliDrip's solution is easy to install, requires no ongoing maintenance, and operates without electricity, making it a practical choice for enhancing urban agriculture and greening initiatives in various urban settings, including rooftops, walls, balconies, and courtyards.

A.D. Knight focuses on enhancing the safety of pedestrians and vulnerable road users through innovative technology that utilizes mobile phones and connected devices for passive data collection. By prioritizing user privacy, the company provides municipalities, road operators, and asset owners with tools to prevent accidents and manage traffic effectively. Their solutions deliver real-time traffic safety alerts to various road users, including pedestrians and those using micro-mobility options. A.D. Knight's technology is particularly valuable in low-light environments, allowing for better detection and protection of individuals, ultimately contributing to safer urban environments for walking, jogging, riding, and driving.

Candam is focused on creating innovative technology for the waste management sector, particularly in Europe. The company has developed a patented Smart Ring technology that utilizes acoustic techniques and artificial intelligence algorithms to identify various types of packaging materials in real time. This system aims to enhance waste collection processes, increase recycling rates, and support the circular economy by providing efficient waste management solutions. By implementing its technological platform, Candam seeks to address challenges associated with waste production and improve access to waste management systems, particularly in urban areas dealing with specific waste categories such as pharmaceuticals.

COI Energy Services, Inc. offers a software as a service (SaaS) platform designed to enhance energy efficiency for utilities and their business customers. Founded in 2016 and based in Tampa, Florida, the company provides solutions in demand response, energy efficiency analytics, renewable energy capacity identification, and rebates and incentives alerts. Its platform facilitates two-way communication between utilities and customers, enabling them to understand energy usage patterns and trends while identifying opportunities to reduce energy waste and costs. By leveraging artificial intelligence, COI Energy Services helps customers receive tailored alerts on energy wastage and available incentives, ultimately promoting environmental sustainability and optimizing the electric grid. The company was previously known as COI Empowerment & Energy Services LLC before rebranding in December 2017.

WISRAN specializes in smart data and process management technology focused on real-time water measurement and management. The company develops a cloud-enabled software platform that collects data from various equipment, such as pumps, to provide insights into operations and business intelligence. This technology serves smart cities, equipment manufacturers, utilities, and regulators, aiming to enhance efficiency, identify new revenue opportunities, and reduce costs. Additionally, WISRAN offers a SaaS-based agtech platform that utilizes tablets equipped with accelerometers and GPS for agricultural equipment. This feature allows farmers to gather telematics data, ultimately improving worker productivity and optimizing agricultural machinery logistics.

HATCHTRACK is a Smart IoT app gathers the incubation data and stores it in the cloud for analysis, track conditions, receive emergency alert

TRAXyL, Inc. specializes in the innovative installation of optical fiber by providing a unique distribution system that allows for the direct application of fiber communications onto road surfaces. Founded in 2014 and based in Warrenton, Virginia, the company has developed a method that eliminates the need for traditional trenching, thus facilitating faster deployment of broadband services. This technology not only enhances connectivity in underserved areas but also supports the rollout of 5G networks, making it easier for municipalities and internet service providers to improve access in various locations, including campuses, hospitals, and military bases.

ZERO5 specializes in automation technology aimed at enhancing parking spaces by transforming them into tech-enabled mobility hubs. The company's software efficiently monitors individual parking spots without requiring additional resources, offering a range of parking management features tailored to meet diverse client needs. By collecting, analyzing, and distributing real-time data, ZERO5 enables customers to optimize their revenue while minimizing operating costs. Its innovative solutions connect available parking spots with drivers actively seeking parking, ensuring a streamlined experience for both parking space owners and users.

SAMAWATT AG is a Swiss company that provides technology solutions for wind and solar park operators, aiming to optimize the sales of renewable energy. Founded in 2018 and based in Eysins, the company specializes in artificial intelligence-driven trading services that help producers manage risks associated with fluctuating energy production and market prices. SAMAWATT's software integrates various functions, including production and price forecasting, spot market trading strategies, battery storage optimization, and enabling peer-to-peer energy exchange. By employing advanced algorithms, the company assists its clients in reducing penalties related to electric grid imbalances and minimizing market losses, thereby contributing to a more efficient and sustainable energy trading environment.

Camberline Technologies is a company that specializes in a sensor-driven platform designed to monitor electricity usage and promote energy conservation. The platform provides billing-ready data that integrates with existing billing systems, facilitating efficient energy management. By delivering actionable insights, Camberline encourages consumers to adopt more sustainable electricity usage habits, often through attractive incentives. This approach not only supports individual energy conservation efforts but also contributes to broader community sustainability goals.

Antavi is a developer of an advanced command and control platform aimed at enhancing the management of public spaces, particularly in smart city environments. The platform focuses on digital transformation for crowd management during large-scale events, utilizing real-time data to capture and analyze human behaviors within crowds and among mobile workforces. This innovative approach enables cities to improve safety, efficiency, and overall public space management, making Antavi's solutions essential for modern urban planning and crowd control strategies.

MyCrops is an agricultural technology company that focuses on enhancing crop management through innovative solutions. The company's smart crop monitoring tools leverage AI and deep learning to provide real-time insights aimed at preventing crop loss and maximizing yield from the outset. By utilizing unique data sets from a vast user base, MyCrops offers actionable analytics through its user-friendly platform. Key features include the Scout app, which delivers immediate alerts regarding pest and disease threats, and the Spot imaging solution, which provides automated 360-degree views of plants for continuous health monitoring. These tools facilitate efficient task management and decision-making without the need for extensive infrastructure changes. MyCrops' sustainable solutions aim to improve day-to-day agricultural operations, increase profitability, and reduce chemical dependency, ultimately supporting farmers in making informed, data-driven decisions.

Securaxis specializes in the development, installation, and operation of innovative safety and security solutions. Founded in 2018 as the first incubated company of BIC of CERN Technologies in Switzerland, Securaxis has garnered recognition through various accolades, including the Entreprendre Network and Swisscom Start-up Challenge. The company is part of the HP Enterprise Startup Incubator and the NVIDIA Inception Program. Securaxis has a dedicated team of eight experts in fields such as machine learning, acoustics, and data management, who have collaborated for over four years. They have successfully developed and commercialized a mobile security application utilized by clients including the Federal Department of Foreign Affairs in Switzerland, the Olympic Committee, and the United Nations. Securaxis operates a real-time geolocalized security information platform that employs smart acoustic sensors to analyze and classify sounds in urban environments, enabling organizations to make informed decisions to enhance safety.

GoUrban operates as a comprehensive mobility platform designed to enhance the management and efficiency of various transportation options, including cars, scooters, and mopeds. By offering a system that allows operators to streamline their operations, GoUrban focuses on optimizing fleet performance and minimizing unnecessary costs. The company specializes in providing affordable electric vehicle rental services, featuring compact, fully electric scooters that can be parked in diverse locations. This flexibility increases fleet availability and improves customer experiences while promoting sustainability by reducing CO2 emissions and optimizing parking space utilization. Overall, GoUrban aims to deliver safe, convenient, and eco-friendly transportation solutions for modern urban mobility needs.

Eceptacle specializes in innovative waste management solutions by manufacturing and distributing Wi-Fi-enabled compacting trash receptacles. These smart trash cans are equipped with digital displays that not only collect and compact solid waste but also send push notifications when they reach capacity. By enhancing operational efficiencies and reducing costs, Eceptacle's products support municipalities and organizations in improving public safety and minimizing their environmental impact. The company's approach aims to create additional revenue streams while addressing the challenges of waste management in urban settings.

Parquery AG, founded in 2014 and based in Zurich, Switzerland, specializes in smart parking solutions through the development of a web application that provides real-time on-street parking availability. The company employs computer vision and machine learning technologies to analyze images and detect parking vacancies, utilizing snapshots from existing cameras to deliver accurate data. This service caters to parking managers and supports smart city and mobility initiatives by offering insights into past, current, and predicted future usage of parking facilities, thereby facilitating smarter routing options for drivers seeking available parking spots.

Tuverl is an application focused on enhancing public transportation accessibility and affordability for commuters in Africa, beginning with Zimbabwe. It provides two mobile applications: the Commuter App, which allows users to track intracity buses and minibuses in real-time, book intercity trips, hail taxis on demand, and make payments through local fintech solutions, and the Operator App, designed for public transport operators. The Operator App enables drivers and operators to broadcast vehicle locations, manage fleets, and process digital fares, ultimately increasing commuter numbers and reducing wasted resources. By leveraging cloud computing, data analytics, geolocation, fintech, and machine learning, Tuverl aims to transform public transport while promoting Sustainable Development Goal 11, which focuses on sustainable cities and communities. Through its innovative approach, Tuverl seeks to improve urban mobility and support the development of smart, resilient communities across African nations.

Seoul Robotics specializes in developing advanced Lidar perception software and 3D computer vision devices aimed at enhancing the capabilities of autonomous vehicles, robots, and smart city applications. The company’s technology enables these systems to detect, classify, track, and predict the behavior of various targets and objects within their environment. By integrating sophisticated sensors and platforms, Seoul Robotics facilitates a deeper understanding of surroundings for self-driving cars and autonomous robots, ultimately contributing to safer and more efficient navigation and operation in complex settings.

OCEO is a consumer company based in Bangalore, India, founded in 2016, that focuses on water purification services. The company offers an Internet of Things (IoT)-enabled water purifier designed to address the increasing demand for safe drinking water. This smart purifier operates efficiently in the background, anticipating user needs to save time and resources. OCEO aims to provide sustainable, intelligent, and affordable water purification solutions, catering to diverse lifestyles and ensuring access to clean water for users around the globe.

Make My Day is a Tel Aviv-based company that specializes in a driving assistance app designed for electric vehicles. The app enhances the driving experience by optimizing routes and connecting drivers with their vehicles, allowing for multitasking while driving. Additionally, it offers a comprehensive solution for daily needs by linking drivers to various business providers. The platform is particularly beneficial for electric vehicle fleets, providing managed services that include smart route planning and charging management. This enables companies and fleet operators to reduce costs and make informed decisions regarding their electric vehicle operations.

LEDsafari SA, founded in 2014 and based in Lausanne, Switzerland, focuses on sustainability education through innovative training programs and solar kits. The company aims to empower future generations to address climate change by providing hands-on learning experiences in schools and educational institutions. Its flagship product is a solar kit that enables users to assemble an electrical circuit and create a lamp from recycled materials. This approach not only teaches solar technology theories but also promotes eco-friendly practices. LEDsafari has successfully sold 15,000 solar kits across 15 countries via its online platform. The company is also developing a state-of-the-art learning platform featuring high-quality animations, graphics, and games, with plans to incorporate augmented reality and mobile technology in the future.

XOC offers a unique learning experience and it creates an energy awareness that will allow users to save energy in short and long term and at the same time contribute to the environment. XOC is designed for a new energy-based economy. Where buying and selling energy will be a fundamental activity in the near future, where smart cities will be incorporated to the Smart grid.

RePark Social Parking is a mobile application service that facilitates the rental of private parking spaces by the hour. Launched in 2014 in Tel Aviv, Israel, the platform connects parking space owners with drivers in need of parking, providing a convenient solution for urban parking challenges. Through the app, users can easily list their available parking spaces, while drivers can search for and reserve these spaces, enhancing accessibility and efficiency in urban environments.

ThinkEE is a comprehensive platform designed for the collection, centralization, secure storage, and real-time analysis of data from various devices. It specializes in developing custom Internet of Things (IoT) applications, particularly for the food industry in managing HACCP regulations through an integration of IoT sensors and mobile applications. The platform enhances efficiency and decision-making across multiple sectors, including building management, smart cities, security, agriculture, and industrial applications. By providing insights into key metrics, ThinkEE enables clients to better understand their operations and optimize their processes for improved performance.

UMo is a technology platform focused on addressing sustainability challenges in urban environments. It facilitates the development of smart cities by encouraging citizens to adopt sustainable transportation options such as walking, cycling, public transportation, and carpooling. The platform employs mobile devices, IoT networks, and city data to monitor individual transportation behaviors, offering insights that help clients improve their sustainability scores. By providing incentives and rewards, UMo aims to reduce reliance on private vehicles, thereby promoting a more sustainable urban lifestyle.

Gabriel is focused on enhancing safety and security through an innovative network of devices designed to address threats such as active shooter situations. In light of the increasing safety concerns globally, the company has developed a comprehensive alert and crisis management system that is user-friendly, easily deployable, and cost-effective. Their primary targets are schools and public buildings, where a combination of smart sensors and software facilitates instant alerts and offers essential communication and management tools. This approach enables communities to better prepare for and respond to potential dangers, while being significantly more affordable than existing solutions.

Sukriti Social Foundation is a non-governmental organization focused on improving sanitation and hygiene for approximately 800 million Indians, particularly women. The foundation develops eco-toilets, which are smart, prefabricated toilet cabins that are automated for self-cleaning and maintenance, utilizing fresh water and treating waste on-site while operating on solar energy. In addition to enhancing sanitation, Sukriti Social Foundation aims to address broader societal challenges by implementing effective waste management strategies, promoting energy sufficiency through renewable resources, and fostering affordable healthcare, low-cost housing, skill development, and agricultural sustainability. By utilizing engineering solutions, the foundation seeks to create economical and environmentally friendly approaches to some of the most pressing issues in the country.

State of Place is a developer of predictive analytics software focused on enhancing urban environments to be more walkable, livable, and sustainable. The company provides tools that quantify urban design features and utilize empirical evidence to forecast the benefits of improvements. By equipping urban planners, business improvement districts, real estate developers, and other stakeholders with data-driven insights, State of Place facilitates seamless project approvals and helps justify investments in better urban spaces. The software identifies the most impactful changes to maximize walkability and livability, enabling cities and developers to secure funding and create cost-effective, smart city solutions. Through its data-driven approach, State of Place aims to enhance the overall quality of urban life and economic competitiveness while simplifying the planning and development processes.

Securaxis specializes in the development, installation, and operation of innovative safety and security solutions. Founded in 2018 as the first incubated company of BIC of CERN Technologies in Switzerland, Securaxis has garnered recognition through various accolades, including the Entreprendre Network and Swisscom Start-up Challenge. The company is part of the HP Enterprise Startup Incubator and the NVIDIA Inception Program. Securaxis has a dedicated team of eight experts in fields such as machine learning, acoustics, and data management, who have collaborated for over four years. They have successfully developed and commercialized a mobile security application utilized by clients including the Federal Department of Foreign Affairs in Switzerland, the Olympic Committee, and the United Nations. Securaxis operates a real-time geolocalized security information platform that employs smart acoustic sensors to analyze and classify sounds in urban environments, enabling organizations to make informed decisions to enhance safety.

Ubuntu Power focuses on enhancing the quality of life for millions of Sub-Saharan Africans who lack access to electricity, internet, and water. The company provides solar power and mobile services specifically designed for off-grid communities. By offering free solar energy and unrestricted internet access, Ubuntu Power aims to deliver clean and affordable electricity while increasing access to information for underserved populations.

WayCare Technologies Ltd. is a company based in Tel-Aviv, Israel, that specializes in a cloud-based platform aimed at proactive traffic management. Founded in 2016, WayCare leverages predictive analytics to forecast traffic crashes and congestion before they occur, providing municipalities with valuable insights for optimizing road safety. The platform facilitates two-way communication between vehicles and city infrastructure, allowing cities to utilize a vast array of data from various transportation modes, including connected and autonomous vehicles. By predicting road congestion up to two hours in advance and monitoring the effectiveness of implemented strategies, WayCare enables traffic center operators to generate actionable insights, thereby enhancing traffic safety and improving overall urban mobility management.

ParkWise operates an intelligent parking platform aimed at addressing street parking challenges for drivers and autonomous vehicles. By leveraging artificial intelligence and machine learning, ParkWise creates a connected network that facilitates real-time communication between drivers, vehicles, and parking infrastructure. This technology enables the automatic exchange of parking availability data, predictions, and relevant regulations. The platform also incorporates crowd-sourcing elements and provides behavioral analytics to enhance user experience and optimize parking solutions. With a team of 11 engineers and data scientists boasting over seven years of experience in Intelligent Traffic Management Systems, ParkWise aims to make street parking more efficient and user-friendly.

Technis is a company focused on developing innovative connected and interactive flooring solutions. By creating intelligent touch-enabled surfaces, Technis aims to enhance the functionality of physical spaces. The company also operates software designed to digitalize retail stores and buildings, enabling the collection of real-time data on foot traffic, customer behavior, and environmental quality. This information assists clients in making informed decisions and streamlining complex operational processes. Through its unique offerings, Technis is positioned to transform how businesses interact with their physical environments.

Oorja Development Solutions aims to provide clean energy access to 450 million un/underelectrified people in rural Indian communities. It deploy smart micro-grids powered by biomass gasification and solar PV systems to generate, store and transmit reliable and affordable electricity to SMEs as anchor load and low-income households. It uses a scalable community-owned business model to leverage energy provision as a catalyst for socio-economic development to alleviate poverty, empower women and tackle climate change.

Vieni is a web platform and mobile app that allows users to group their travel demand together before going to market. For example, if a group is travelling to a festival they can join others from their local area and 'group buy' a charter coach. This means the coach comes to them and takes them to their precise final destination thus reducing their overall cost and time whilst having a positive effect on the environment. From the enterprise perspective the tool also allows coach operators to signal their availability and pick up demand in what would otherwise be an empty vehicle. For example, once I have dropped off a group and have to return to the depot that is essentially a wasted journey/cost to the operator. Vieni's dynamic algorithm driven software can fill the vehicle and minimise losses to the company.

City Transformer is an automotive technology company focused on creating innovative solutions for urban mobility. The company has developed an electric city vehicle featuring a patented folding mechanism that allows the car to narrow to just one meter in width. This unique design enables drivers to easily navigate tight traffic and park in spaces typically reserved for motorcycles, significantly enhancing urban parking convenience. The vehicle combines advanced technology, including smart sensors, while prioritizing safety and an improved driving experience. By adapting the car's dimensions and driving behavior, City Transformer addresses the challenges of conventional passenger vehicles, making urban commuting more efficient and accessible.

Jiffi's Bluetooth beacons detect when passengers board and when they get off, without them having to do anything but install an app and enter payment details.The automated app works with pay-as-you-go plans and in-app mobile payments. Passengers travel, the app handles payment. Automatically. Transport operators get access to Jiffi's powerful dashboard and visualizations that show journeys from points A to B to C. This gives clear insight for better route planning, smarter pricing, as well as reduced boarding times. Get in touch to see how Jiffi is changing the way they experience cities, one ride at a time.

Telos is an open source project building the common infrastructure for a decentralised, citizen-led industry and Internet of Things. The Telos Services project is developing open service kits: providing citizens with the opportunity to become co-producers for the core services of their homes, and setting a civic framework for their future ‘smart’ built environment.

CityTaps has created an innovative solution to improve access to water for urban populations in developing countries. The company offers a prepayment service that includes a smart and prepaid water meter alongside billing software, designed to empower water utilities to achieve financial independence. This enables them to invest in infrastructure that provides at-home water service, particularly for the poorest residents who lack access to running water. Beneficiaries can conveniently use mobile money to prepay for water, allowing them to manage their household budgets more effectively. The availability of running water in homes is not only more affordable but also enhances health and quality of life. CityTaps' approach has the potential to significantly uplift the lives of millions who currently do not have access to essential water services.

CLARA is the unique and revolutionary smart jacket that incorporates ultra bright turn signals and braking sensors to automatically make cyclists, runners and every pedestrian safer in poor light conditions.The USB rechargeable circuit is equipped with sophisticated sensors as GPS, heart rate monitor, and inertial measurement unit to track performance data. The user can visualise all the information on the smartphone’s application to build healthy lifestyle habits and achieve personal goals.

ThinkLite is a global company specializing in lighting efficiency solutions for commercial clients and government entities. Based in Natick, Massachusetts, it operates in over 14 countries, offering custom designs, manufacturing, distribution, and installation of energy-efficient retrofit solutions. The company utilizes proprietary LED and Induction technologies that are tailored to fit existing infrastructures, aiming to enhance aesthetics while significantly reducing energy costs. ThinkLite provides a comprehensive range of services, including energy audits, analysis, product delivery, installation, warranties, and guaranteed energy savings, helping both businesses and households lower their initial investments and monthly lighting expenses.