Continuous learning requirements for students and professionals driven by sweeping trends over the past two decades due to globalization, talent migration, and consistent improvements in corporate competencies and individual talent grooming have increased the scope of e-learning. With rapid globalization, there has been increased mobility of human capital in industries, including tourism, trade, media, international relations, and science and technology. Therefore, there is a need to effectively acquire functional and vocational skills over a short period and in a cost-effective manner. While conventional learning and training methods cater to most needs, they are ineffective in meeting the dynamic learners’ requirements, especially in the rapidly expanding learner segment.

Cordless vacuum cleaners are electrical appliances that are designed to make the cleaning task more convenient. These vacuum cleaners contribute to increased productivity and save around 50% of the time over manual cleaning. Users no longer struggle with the tangled cord of corded vacuum cleaners, finding power sockets, and changing the socket when the cord does not reach. The cordless vacuum cleaner market is currently growing at a brisk pace considering the current focus of people on cleanliness. North America and Europe are contributing to a larger share of the market, whereas APAC is observing a higher growth rate due to a rise in disposable income, health awareness, etc. Also, adding to the rising trend in APAC, China is the major production base for vacuum cleaners, and vendors are setting up joint ventures in China due to the presence of large numbers of OEMs and ODMs.

World war II gave rise to many advances, including healthcare specialization. In 1948, now called the American Academy of Family Physicians created the first U.S. CME credit system, which required 150 hours of CME for re-election to the membership every three years. In 1968, the American Medical Association came out with its Physician Recognition Award Categories 1 and 2, followed in 1972 by the American Osteopathic Association establishing categories of credit. Then, in 1981, along came the Accreditation Council for CME, which was created by the other medical organizations to provide a form of professional self-regulation for now 2,000 accredited providers of CME.

Coating additives are the fundamental components of coating raw materials that are used for the formulation of paints and coating materials. They are added in small quantities to a coating material to enhance their features during manufacturing, storage, transport, and application. The number of additives in a coating formulation is rarely more than 5% by weight. The average proportion of a single additive in a formulation is usually around 1.6% of the total quantity of the coating formulation. The fundamental purpose of using additives in a coating formulation is to enhance the characteristic properties imparted by the main components of the coating material, namely the binder, pigment, and solvent. Coating additives improve the dispersion of solids, wetting, foam-reduction, anti-whittling, and UV protection. It plays a major role in giving an aesthetic and glossy appeal to the material and prevents surfaces from dents, UV, scratch, corrosion, and rusting of metallic parts of tanks, radiators, fences, and metal furniture.

The earth’s atmosphere has an abundance of components that play a key role in geological processes and other chemical reactions. The most abundant components on the planet include hydrogen, nitrogen, and oxygen. Hydrogen is the third most abundant component after silicon and oxygen and plays an essential role in the sustainability of life on the planet. Hydrogen is used as a reagent in several industrial sectors such as chemicals, electronics, metallurgy, and textile fiber manufacturing. Also, hydrogen is known to have the lowest impact on the environment and is used in power generation and transportation applications. Hydrogen is the most efficient energy carrier and can be obtained from different raw materials, such as water, natural gas, methane, or biomass. Hydrogen can be extracted from either of these raw materials using electrolysis or the steam methane reforming process. Approximately 4% of all hydrogen manufactured worldwide is extracted through the water electrolysis process.

The growing prevalence of diabetes worldwide is accelerating the demand for selfmonitoring blood glucose devices and test strips. For instance, around 10% of people are suffering from diabetes related complications in the US. Diabetes has been identified as the seventh leading cause of death in the US as it is known to cause cardiovascular conditions such as heart attacks, stroke, and blood clots. Other complications associated with diabetes include kidney-related diseases and amputation of lower limbs. Therefore, regular monitoring of blood glucose levels by diabetic patients and undiagnosed individuals is critical in effectively managing this chronic condition.

The air purifier market is one of the growing markets in the electronic appliances industry. The use of air purifiers is growing across countries, particularly those where the concentration of pollution is increasing. Growth in industrial activities, urbanization, traffic pollution, and emissions from factories and household activities are the major growth drivers of the air purifier market. The market is witnessing increasing demand from regions such as APAC, Europe, and North America. Some of the advantages of air purifiers include:

美国的交通运输系统在历史发展中缺乏足够的公共交通资源，不利于贫困人群和有色人种的出行。对此，美国政府基于新出行技术带来的出行便利性，将网约车和微型交通作为公共交通的补充。新出行技术能够减少交通不平等，但是，如果没有予以适当的引导，它们可能会加剧现不平等现象。消除出行技术发展过程中的障碍，促进交通公平是必要的举措。本文基于美国城市研究所（The Urban Institute）2020年6月发布的美国运用新出行技术促进交通运输公平性的研究报告，分析美国实际状况，并对我国的交通出行提出了相关建议。

美国拥有高度繁荣的城市，但城市交通面临许多亟待解决的问题，包括道路设施老化、碳排放增加、交通事故频发、公平性不足等。美国城市交通“绿色新政”旨在为上述问题提供解决方案，使美国的城市和郊区变得更绿色、安全、健康、公正、繁荣。美国的城市交通“绿色新政”，可以为我国的城市交通发展提供一定的启示。

国际咨询公司Resonance Consultancy发布了《2020年美国最佳小城市报告》（The 2020 America’s Best Small Cities Report）。报告针对美国小城市，基于地理位置、产品、人口、繁荣程度、项目活动、推广提升六大核心建立评价指标体系，综合运用统计数据和定性评价数据，进行了最佳小城市的排名。针对排名结果的分析解读表明，美国最佳小城市的地理位置具有局部集中但整体均衡的特征；人口规模与排名位序有正相关关系，即人口规模越大，最佳城市排序越靠前；上榜的最佳小城市中，教育程度、连接性、夜生活、收入水平、公园户外等因素是反映城市吸引力和魅力的主要亮点。美国最佳小城市的特征分析对于中国中小城市的高质量发展具有一定的借鉴意义。