Cross-cultural collaboration through virtual teaming in higher education

Scholars from three universities in three different parts of the world - North America, Africa, and Eurasia - across different cultures, disciplines, and contexts, collaborated with the objective of advancing transversal skills and intercultural competences through immersing their students in international virtual teamwork. Students and lecturers represented the Appalachian State University (United States of America), University of the Free State (South Africa), and Novgorod State University (Russia). In this article, we share our lessons learned from the challenges we faced in the hopes of deepening understanding in higher education concerning what can be accomplished through remote learning across continents and cultures. This work allowed us to be ahead of the collapse of traditional teaching on campuses caused by the COVID-19 pandemic, as we had prior experience of online pedagogies reaching across international borders, cultures, time zones, and languages. Even during hard lockdown, when travelling abroad was impossible, our students experienced internationalised curricula, interacted with international scholars and staff, and were able to continue with the programme as planned. We began this work more than five years prior to the pandemic;therefore, these efforts led to successfully switching to online learning in other courses. We began with engaging staff members as well as students in ongoing, project-based collaboration across cultures from these institutions. This required the use of synchronous and asynchronous digital platforms, which would enable staff members and students to work collaboratively for six to eight weeks to create realistic projects. Staff members began to compile the collaborative co-creating courses that would be taught together, thus combining and adapting various pedagogical approaches. We then shared the responsibility for co-facilitating each course, despite different philosophies of teaching and learning. The result was a balanced blend of pedagogies, allowing students to collaborate successfully with students from the other universities. Students overcame a number of challenges: (a) cultural differences;(b) infrastructure for technology platforms;(c) time zones;(d) languages;(e) age and generational differences;(f) unfamiliarity with various pedagogies;(g) interaction with other cultures and settings;and (h) stereotypes fuelled by popular media. We share our journey and the strategies that addressed these challenges, including the use of technology and results from this continued collaboration.

Teaching in the Post COVID-19 Era: World Education Dilemmas, Teaching Innovations and Solutions in the Age of Crisis

This handbook showcases extraordinary educational responses in exceptional times. The scholarly text discusses valuable innovations for teaching and learning in times of COVID-19 and beyond. It examines effective teaching models and methods, technology innovations and enhancements, strategies for engagement of learners, unique approaches to teacher education and leadership, and important mental health and counseling models and supports. The unique solutions here implement and adapt effective digital technologies to support learners and teachers in critical times - for example, to name but a few: Florida State University's Innovation Hub and interdisciplinary project-based approach;remote synchronous delivery (RSD) and blended learning approaches used in Yorkville University's Bachelor of Interior Design, General Studies, and Business programs;University of California's strategies for making resources affordable to students;resilient online assessment measures recommended from Qatar University;strategies in teacher education from the University of Toronto/OISE to develop equity in the classroom;simulation use in health care education;gamification strategies;innovations in online second language learning and software for new Canadian immigrants and refugees;effective RSD and online delivery of directing and acting courses by the Toronto Film School, Canada;academic literacy teaching in Colombia;inventive international programs between Japan and Taiwan, Japan and the USA, and Italy and the USA;and, imaginative teaching and assessment methods developed for online Kindergarten - Post-Secondary learners and teachers. Authors share unique global perspectives from a network of educators and researchers from more than thirty locations, schools, and post-secondary institutions worldwide. Educators, administrators, policymakers, and instructional designers will draw insights and guidelines from this text to sustain education during and beyond the COVID-19 era. © Springer Nature Switzerland AG 2021. All rights reserved.

3D-Printed Face Mask with Integrated Sensors as Protective and Monitoring Tool

The outbreak of the recent Covid-19 pandemic changed many aspects of our daily life, such as the constant wearing of face masks as protection from virus transmission risks. Furthermore, it exposed the healthcare system's fragilities, showing the urgent need to design a more inclusive model that takes into account possible future emergencies, together with population's aging and new severe pathologies. In this framework, face masks can be both a physical barrier against viruses and, at the same time, a telemedical diagnostic tool. In this paper, we propose a low-cost, 3D-printed face mask able to protect the wearer from virus transmission, thanks to internal FFP2 filters, and to monitor the air quality (temperature, humidity, CO2) inside the mask. Acquired data are automatically transmitted to a web terminal, thanks to sensors and electronics embedded in the mask. Our preliminary results encourage more efforts in these regards, towards rapid, inexpensive and smart ways to integrate more sensors into the mask's breathing zone in order to use the patient's breath as a fingerprint for various diseases. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.

Casing Leak Repair to Continue Hydraulic Fractures Stimulation

A casing leak repair alternative is presented to allow continued hydraulic fracture treatment of an unconventional formation. Analysis of diagnostic operations, selection of the best alternative, and the results are detailed. This paper details the diagnostic operations (annular circulation test, multifinger caliper log, leak chase with hydraulic packer on Coiled Tubing, fluid transit evaluation, and real-time camera downhole images acquisition) to identify the casing leak zone and the analyzed repair alternatives with the final selection of a casing patch. To verify the pipe body shield strength and burst pressure post-patch expansion, a finite element analysis in dynamic condition was carried out to limit the hydraulic fracture pumping parameters. This paper covers details on repair operations executed, verification analysis to confirm original frac treatment continuity, and lower & upper completion installation. The diagnostics operations allowed pinpointing casing leak detection and selection of possible repair alternatives. The repair was carried out as planned involving many services companies. A solution was implemented with local staff and services considering the COVID context with travel restrictions of the patch owners. Web broadcasting CT surface parameters allowed real-time support from casing patch suppliers during the entire intervention. The completion plan with 24 frac stages performed through the casing patch was successfully executed. The production packer with an OD of 99.5% of the casing patch drift was run through the casing patch and wireline set without any problem. Considering well integrity conditions throughout the entire well production life as the main intervention objective, this paper introduces a successful alternative to repair casing failures on an unconventional well that allowed hydraulic fractures continuity to accomplish the original frac plan. The well production was higher than the Estimated Ultimate Recovery (EUR) expected for the landing zone. Copyright 2023, Society of Petroleum Engineers.

Special Economic Zones of High Technological Development in China: Shanghai and Shenzhen

Since 1979, China has experienced dazzling economic progress thanks to economic reforms and Special Economic Zone (SEZ) projects. Disciplined labor processes and government involvement have been key factors in its financial and technological success. Cities such as Shanghai and Shenzhen have become fundamental pillars in scientific and technological development, based on the creation of new energies, robotics, health, telecommunications, biotechnology, genetics, space exploration, artificial intelligence, quantum computing, making the Asian giant a global technological hub. The objective of this research is to analyze the technological impact of Shanghai and Shenzhen, considered as Special Economic Zones of High Technological Development (ZEEADT) because they are fundamental pillars in the continuity of China as the first world economic power. As a result of this efficiency, the Asian country has continued to grow and strengthen even during the economic slowdown caused by COVID-19.

Virus-laden droplet nuclei in vortical structures associated with recirculation zones in indoor environments: A possible airborne transmission of SARS-CoV-2.

Droplet nuclei dispersion patterns in indoor environments are reviewed from a physics view to explore the possibility of airborne transmission of SARS-CoV-2. This review analyzes works on particle dispersion patterns and their concentration in vortical structures in different indoor environments. Numerical simulations and experiments reveal the formation of the buildings' recirculation zones and vortex flow regions by flow separation, airflow interaction around objects, internal dispersion of airflow, or thermal plume. These vortical structures showed high particle concentration because particles are trapped for long periods. Then a hypothesis is proposed to explain why some medical studies detect the presence of SARS-CoV-2 and others do not detect the virus. The hypothesis proposes that airborne transmission is possible if virus-laden droplet nuclei are trapped in vortical structures associated with recirculation zones. This hypothesis is reinforced by a numerical study in a restaurant that presented possible evidence of airborne transmission by a large recirculating air zone. Furthermore, a medical study in a hospital is discussed from a physical view for identifying the formation of recirculation zones and their relation with positive tests for viruses. The observations show air sampling site located in this vortical structure is positive for the SARS-CoV-2 RNA. Therefore, the formation of vortical structures associated with recirculation zones should be avoided to minimize the possibility of airborne transmission. This work tries to understand the complex phenomenon of airborne transmission as a way in the prevention of transmission of infectious diseases.

DESIGN OF A NET ZERO HOUSE AT 100-YEAR FLOOD ZONE IN A HISTORIC DISTRICT: A CASE OF SOLAR DECATHLON DESIGN CHALLENGE ENTRY

This paper discusses the design of a net-zero single-family house in Chattanooga, Tennessee, which was proposed for the 2022 Solar Decathlon Design Challenge entry. The site was in a 100-year flood zone and registered as a national and local historic district. The interdisciplinary team consisted of University of Tennessee Chattanooga (UTC) students from the interior architecture and engineering departments who embraced the challenges of the local climate and the restrictions of the historic district guidelines. This entry, Moc House, focused on the integration of passive design and active HVAC systems including photovoltaic systems in the process. In responding to recent housing market changes in Chattanooga due to the COVID-19 pandemic, a young professional couple in their 30s who have two children was identified as the target market which guided the space planning. Market analysis, including ROI, was conducted in addition to construction cost calculations. Building materials were selected to enhance the durability and resilience of the house structure. Finally, energy analysis was conducted to check the project's Home Energy Rating using Ekotrope and found it less than zero. © 2023, College Publishing. All rights reserved.

Reinventing luxury travel imaginaries: Early responses of travel influencers to the COVID-19 pandemic

This chapter assesses how luxury travel imaginaries were modified in the aftermath of the outbreak of the coronavirus pandemic. Drawing on long-term fieldwork among travel influencers, the chapter presents their response strategies to the COVID-19 pandemic. Based on an analysis of evidence from participant observation in tourist sites, network visualisations, in-depth interviews and platform profiles, I trace the transformations luxury travel imaginaries have undergone since the beginning of 2020. Before this global crisis, travel influencers became new puissant players in the highly globalised tourism industry as they regularly received assignments from tourism boards and hotels. Although brand sponsorship was considered a substantial source of revenue for travel influencers, their collaborations in travel destinations and the monetisation of travel content on YouTube were further assets to secure a livelihood. The coronavirus outbreak, however, turned their life-worlds upside down. This ethnographic investigation identified three main responses of travel influencers to the current long-term crisis of tourism: (1) diversification of content creation and orientation towards other influencer genres, (2) support for local tourism organisations and online promotion of staycations and (3), finally, travel to tourist sites for circulating online content on safe travel standards. Digital platforms became a major arena where the future of tourism has been re-negotiated in the wake of the COVID-19 outbreak. The in-depth investigation suggests that travel influencers were in a position to create new powerful representations of luxury as safe travel since they acquired the skills to establish stable storyworlds for their travel experiences, which attracted the attention of large platform audiences. © 2022 by Emerald Publishing Limited. All rights reserved.

Addressing another threat to food safety: Conflict

Conflicts across the globe affect food security and also have a heavy toll on food safety. Many of the areas affected by conflict are breadbaskets for multiple countries. When the production of staple crops is compromised by diverse conflicts, it becomes necessary to grow them somewhere else to satisfy local, regional, and/or international requirements. However, if that production is done in tropical and subtropical zones, it must be done incorporating strategies to prevent mycotoxin contamination, which has negative health, social, and economic impacts. Otherwise, increased production of susceptible crops in mycotoxin-prone areas may augment the already occurring negative impacts, which are severe in the global south.

CHARACTERIZING MOVEMENT PATTERNS OF NOMADIC PASTORALISTS AND THEIR EXPOSURE TO RIFT VALLEY FEVER IN KENYA

The role of animal movement in spreading infectious diseases is highly recognized by various legislations and institutions such as the World Organisation for Animal Health and the International Animal Health Code. The increased interactions at the nexus of human-animal-ecosystem interface have seen an unprecedented introduction and reintroduction of new zoonotic diseases with high socio-economic impacts such as the COVID-19 pandemic. Rift Valley fever (RVF) is a zoonotic disease that affects both humans and animals and is transmitted by Aedes mosquitoes or through contact with the body fluids of infected animals. This study seeks to characterize movement patterns of pastoralist and how this movement behaviour increases their susceptibility to RVF virus exposure. We levarage on a rapidly growing field of movement ecology to monitor five herds collared from 2013 – 2015 in an RVF endemic semi-arid region in Kenya. The herds were also sampled for RVF antibodies to assess their exposure to RVF virus during the rainy seasons. adehabitatLT package in R was used to analyze the trajectory data whereas the first passage time (FPT) analysis was used to measure the area utilized in grazing. Sedentary herds grazed within 15km radius while migrating herds presented restricted space use patterns during the dry seasons and transient movement during the start and end of the rainy season. Furthermore, RVF virus antibodies were generally low for sedentary herds whereas the migrating herds recorded high levels during their transition periods. This study can be used to identify RVF risk zones for timely and targeted management strategies.

Soil Liquefaction Remediation of the Port of San Diego's B Street Pier Facility Using Deep Soil Mixing

The Port of San Diego's B Street Pier facility (Pier) is the busiest cruise terminal in the City of San Diego with over a hundred ship calls annually (pre-COVID). The Pier is an approximately 9.4-acre bulkhead faced mole extending about 1,000 ft into San Diego Bay and approximately 400 ft wide. On the three offshore sides of the bulkheaded mole are marginal pile supported wharfs constructed in 1923. The upland side of the mole is a concrete gravity seawall constructed in 1900. The mole soils consist of hydraulically placed dredge spoils and are susceptible to liquefaction.The existing Pier containment walls are deemed inadequate for seismic loading, mainly due to the presence of liquefiable materials both in front of and behind the existing containment wall. A solution consisting of an improved Deep Soil Mixing (DSM) zone coupled with the installation of a new steel sheet bulkhead was selected to retrofit and upgrade the Pier to current seismic standards. A key aspect of the design was to minimize loading induced from the wharf onto the existing curtain wall during an earthquake. The DSM zone is intended to serve a triple purpose, that is to improve shear strength of the soils behind the curtain wall, to mitigate the impact of liquefaction, and to provide sufficient bearing for potential future lightly loaded structures which may be constructed on the Pier. To obtain a cost-effective design and limit the DSM zone extents, the design also needed to limit the seismic load contributions to the DSM from the marginal wharves during seismic conditions. A development plan consisting of a multi-phased construction plan was determined to meet the Port's capital improvement needs and budget. Phase I development will install the DSM zone and steel sheet pile bulkhead along the south and west face of the mole. Future work will include wharf pile and deck replacement along with completing curtain wall replacement along the north face of the mole. This paper presents the geotechnical design challenges and considerations associated with the design of the DSM and sheet pile system comprising Phase I of the development plan. Key aspects of the geotechnical design included the selection of appropriate liquefaction resistance of the DSM improved zone, designing for the lateral spread of the slope in front of the curtain wall, assessment of stability and deformation of the proposed sheet pile, and the determination of the seismic earth pressures. © ASCE.

Smart Tourism: Mobile Application with Augmented Reality to Promote the Use of Virtual Tourism for the Archaeological Zone of Caral, Peru

Due to COVID-19, the tourism sector had a loss of visitor revenue of 56%. For tourism in Caral, Peru for 2020 there was a 95% reduction in the annual number of visitors expected. Therefore, the research aims to develop a mobile application for Android with augmented reality to show 3D models and audiovisual content that allows to promote the use of virtual tourism for the archaeological zone of Caral, Peru. To this end, an applied research is developed with a quantitative approach following an experimental methodological design through the pre-experimental method for which a sample of 50 users was taken. To measure this experiment was based on the use of indicators of time of use of the application and the use of augmented reality in the application. The results obtained an average time of use of the application of 0:08:25 minutes while the average time of use of augmented reality in the application was 0:03:36 minutes. Likewise, the results show a great interest on the part of users towards the implementation of augmented reality in an application focused on tourism. © 2022 Copyright for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0)

Special Economic Zones in an Era of Multilateralism Decadence and Struggles for Post-Pandemic Economic Recovery: Perspectives from the Global South

Recent years have seen a proliferation of Special Economic Zones (SEZs) in developed and developing countries. Developed in Europe in its modern shape, most SEZs are located outside the continent today, notably in the developing world, where SEZs form part of these countries' export-oriented growth policy tools and overall economic development. At a period of growing unilateralism and the return of the State as an economic actor, this contribution seeks to tackle the rise of SEZ laws in the global south, with a particular focus on Africa. It will scrutinize the reasons for their establishment, the measures chosen to promote them, and the international ramifications in these respective regions and broadly on the global plane, notably at the WTO. With the entry into force of the African Continental Free Trade Area (AfCFTA) Agreement, African countries face challenges of multi-layered SEZ governance, which this contribution intends to address. These challenges also extend to the cross-regional trade agreements these countries conclude, individually and as a bloc. Since SEZs are often assimilated with a category of subsidies and are discriminatory trade measures, this contribution, in essence, investigates the extent to which current trade rules at multilateral and regional levels address these controversial aspects of SEZs.

International practice analysis of the negative list: Chinese Example of shipping market access

The international shipping industry is unique and important. The negative list related to the opening up of the shipping industry is an important part of the reform and innovation of China's pilot free trade zones. In recent years, as countries around the world continue to promote the process of opening up in the fields of trade and services, the negative list system has been used more in international investment and trade agreements. In the field of International Shipping, how to correctly grasp and apply the negative list system is an important topic. Starting with the general concept of the negative list system of shipping market access, this paper reviews and summarizes the developmental processes of the negative list of foreign capital market access in the shipping field since the establishment of Shanghai Pilot Free Trade Zone. It compares and analyzes the international contracting practice of the European Union and the United States as reflected in the negative list of shipping market access. It equally points out that the system connection between the negative list still existing in China's shipping field and the international high standard negative list is not enough. It argues that the transparency of the negative list still needs to be further strengthened as the rules behind the list and the awareness of its risk prevention are weak. In view of these hitches, this paper makes some suggestions that are tilted towards improving the negative list system of China's shipping market access. It also continues the optimization of the negative list of shipping market access, and the improvement of a conscious awareness aimed at avoiding the possible risks of the negative list. Finally, it makes a strong argument for a continuous improvement of China's international shipping competitiveness.

The impact of low emission zones on personal exposure to ultrafine particles in the commuter environment.

Auckland is a city with limited industrial activity, road traffic being the dominant source of air pollution. Thus, the time periods when social contact and movement in Auckland were severely curtailed due to COVID-19 restrictions presented a unique opportunity to observe impacts on pedestrian exposure to air pollution under a range of different traffic flow scenarios, providing insights into the impacts of potential future traffic calming measures. Pedestrian exposure to ultrafine particles (UFPs), was measured using personal monitoring along a customised route through Central Auckland during different COVID-19-affected traffic flow conditions. Results showed that reduced traffic flows led to statistically significant reductions in average exposure to UFP under all traffic reduction scenarios (TRS). However, the size of the reduction was variable in both time and place. Under the most stringent TRS (traffic reduction of 82 %), median ultrafine particle (UFP) concentrations reduced by 73 %. Under the less stringent scenario, the extent of reduction varied in time and space; a traffic reduction of 62 % resulted in a 23 % reduction in median UFP concentrations in 2020 but in 2021 similar traffic reductions led to a decrease in median UFP concentrations of 71 %. Under all scenarios, the magnitude of the impact of traffic reductions on UFP exposure varied along the route, with areas dominated by emissions from construction and ferry/port activities showing little correlation between traffic flow and exposure. Shared traffic spaces, previously pedestrianised, also recorded consistently high concentrations with little variability observed. This study provided a unique opportunity to assess the potential benefits and risks of such zones and to help decision-makers evaluate future traffic management interventions (such as low emissions zones). The results suggest that controlled traffic flow interventions can result in a significant reduction in pedestrian exposure to UFPs, but that the magnitude of reductions is sensitive to local-scale variations in meteorology, urban land use and traffic flow patterns.

Spatiotemporal Evolution of Carbon Emissions According to Major Function-Oriented Zones: A Case Study of Guangdong Province, China.

Studying the spatiotemporal evolution of carbon emissions from the perspective of major function-oriented zones (MFOZs) is crucial for making a carbon reduction policy. However, most previous research has ignored the spatial characteristics and MFOZ influence. Using statistical and spatial analysis tools, we explored the spatiotemporal characteristics of carbon emissions in Guangdong Province from 2001 to 2021. The following results were obtained: (1) Carbon emissions fluctuated from 2020 to 2021 because of COVID-19. (2) Over the last 20 years, the proportion of carbon emissions from urbanization development zones (UDZs) has gradually decreased, whereas those of the main agricultural production zones (MAPZs) and key ecological function zones (KEFZs) have increased. (3) Carbon emissions efficiency differed significantly among the three MFOZs. (4) Carbon emissions from coastal UDZs were increasingly apparent; however, the directional characteristics of MAPZ and KEFZ emissions were not remarkable. (5) Carbon transfer existed among the three kinds of MFOZs, resulting in the economy and carbon emissions being considerably misaligned across Guangdong Province. These results indicated that the MFOZ is noteworthy in revealing how carbon emissions evolved. Furthermore, spatiotemporal characteristics, especially spatial characteristics, can help formulate carbon reduction policies for realizing carbon peak and neutrality goals in Guangdong Province.

Energy analysis of a phase change material embedded heat exchanger for air conditioning load reduction in different Indian climatic zones

Air conditioning (AC) systems for tropical countries like India account for sixty percent of the total energy needs of a building. With the onset of COVID-19, the increase of fresh air ventilation rate has been recommended by various guidelines for indoor spaces which increase the load on the AC system. The present study attempts to reduce this burden through retrofitting a phase change material (PCM) embedded pin fin heat exchanger into an air-conditioning system. The heat exchanger is designed to cater to the peak load fluctuations for cities in three hot climatic zones of India, viz., Jaisalmer, Kolkata, and Delhi. Dodecanol with a melting temperature of 24 degrees C, is chosen as the appropriate PCM material for these locations. The optimal pin fin diameters are estimated through an entropy generation minimization analysis for the three locations. A heat transfer analysis of the PCM embedded heat exchanger is further presented through an analytical approach to estimate the PCM mass requirement and energy savings potential. The masses of the PCM estimated for Jaisalmer, Kolkata, and Delhi are 11.36 kg, 22.42 kg, and 19.35 kg, respectively for their respective peak load fluctuations of 0.25 kW, 0.28 kW and 0.48 kW. Energy savings of up to 4.7 % for Delhi, 2 % for Kolkata, and 2.75 % for Jaisalmer are identified with the PCM embedded heat exchanger incorporation. The results show the potential of such PCM thermal storage in reducing the peak energy demands of buildings amidst various environmental and health concerns.

Community-Based Tourism Management during the Coronavirus Pandemic along the Andaman Coast of Thailand

The spread of the coronavirus pandemic from the end of 2019 until the present has drastically changed the trends in the tourism service industry around the world, also in community-based tourism in Thailand. This qualitative research article aimed to explain community-based tourism management during the coronavirus pandemic and includes multiple case studies in five communities of five provinces (Phangnga, Phuket, Krabi, Trang, and Satun provinces) along the Andaman coast of Thailand, which creates an understanding of the characteristics of community-based tourism management for application in specific situations. The data were collected from January to March 2022 via online in-depth interviews and online focus group discussions, with ten key informants and community-based tourism entrepreneurs (two representatives from each). Then, the data were verified using triangulation and analyzed by using content analysis. The results revealed that the community-based tourism management in the Andaman coastal area of Thailand was based on the communities' cultural and natural resources. The tourism operation during the coronavirus 2019 pandemic was focused on building confidence and safety for tourists, namely: 1) characteristics of vaccinated tourists entering the communities and preferred quality tourists;2) communities' readiness for receiving tourists — service staff was regularly checked for coronavirus, renovations were done, and tourism activities were designed to be appropriate in a pandemic situation;3) public relations and communication of the communities' good image were pursued;4) community development sought to achieve the standard of the Thailand Safety and Health Administration;5) a surveillance system was established to monitor community situations. However, recommendations based on this research are that the government should support community-based tourism operations through tax measures, financial projects allocated to the communities, and technology to promote tourism on various platforms. Results from this research can be applied to community-based tourism entrepreneurs, especially in other areas of Thailand. © 2022 Authors. All rights reserved.

Impacts of Covid-19 on air quality, Land Surface Temperature and Urban Heat Island on Local Climatic Zones in the city of Granada (Spain)

The COVID-19 outbreak and the lockdown situation have generated a significant negative impact on the world economy but have provided a unique opportunity to understand the impact of human activity on environmental pollution and how it affects the urban climate. This study takes the city of Granada (Spain) in order to carry out an evaluation of the environmental parameters (So2, No2, Co and O3) obtained through Sentinel 5P images and how they affect the Terrestrial Surface Temperature (TST) and the Surface Urban Heat Island (ICUS) obtained through Sentinel 3 images. Knowing the environmental impact on the TST and ICUS of the different Local Climate Zones (ZCL) of the city will have an impact on future urban resilience studies. As a result, and during the confinement period, the following variations have been obtained with respect to environmental pollutants: So2 (-24.0%), No2 (-6.7%), Co (-13.2%) and O3 (+4.0%). The TST has experienced an average reduction of-8.7 degrees C (-38.0%) while the ICUS has decreased by-1.6 degrees C (-66.0%).

Assessment of exposure risk among healthcare workers exposed to confirmed cases of COVID-19 working in non-COVID zones of a teaching hospital in Northeast India: A cross-sectional study.

Introduction: Healthcare workers (HCWs) are at increased risk of acquiring the COVID-19 disease, if there is a breach in the personal protection while managing patients. Objectives: 1. To estimate the pattern of risk exposure among healthcare workers exposed to confirmed cases of COVID-19 working in non-COVID zones of a Teaching Hospital, North-East India. 2. To determine the association between pattern of exposure with their COVID-19 status. Materials and Method: This was a hospital-based cross-sectional study conducted among all HCWs who had occupational exposure to laboratory confirmed COVID-19 cases between July and September 2020 in-non COVID zones of a major tertiary care hospital in Tripura. Results: The present study showed that 215 HCWs were exposed to confirmed cases of COVID-19 while working in non-COVID zones of the hospital. Among the exposed, 39.5% of HCWs had high-risk exposure and 8.8% of HCWs were detected as COVID-19 positive. A majority of the study subjects experienced exposure in the hospital wards (66.0%), in surgical departments (19.5%), had close contact (less than one meter distance) with positive COVID-19 cases (73.5%), and had an exposure of more than 15 minutes (51.2%). The COVID status of the exposed HCWs was significantly associated with no source control (P = 0.016), close contact with COVID-19 positive cases (P = 0.026), more duration of exposure (P < 0.05), use of any PPE (P = 0.000). COVID status was also significantly associated with the high-risk exposure of the participants (P = 0.000). Conclusion: Strict enforcement of the infection control measures like universal precautions should be practiced by HCWs to prevent hospital-acquired infections.