Direct Threat Research Articles

Ignition Characteristics and Flame Behavior of Automotive Lubricating Oil on Hot Surfaces

Hot surfaces in industrial processes and automotive systems present a remarkable fire hazard. Lubricating oil is a widely used oil in these scenarios. Quantifying the ignition characteristics and flame behavior of lubricating oil on hot surfaces is critical for enhancing fire safety in energy-related applications. This paper utilizes a self-developed experimental platform for the hot surface ignition to systematically conduct combustion tests on lubricating oil with varying volumes at different surface temperatures. Through statistical analysis and image processing, the ignition temperature, flame height, flame propagation velocity, and flame temperature were examined to assess the fire risk of a hot surface ignition. The results demonstrate that the ignition and combustion process of lubricating oil on hot surfaces can be categorized into five stages. The ignition temperature decreases as the oil volume increases. The flame height and flame propagation velocity are positively correlated with the hot surface temperature. The maximum flame height increases with the increase in the oil volumes. When the flame height reaches the maximum value, the flame area is the largest, and the average flame temperature is 1540.30 °C, showing a greater fire risk. When the oil content is 0.2 mL, the flame propagation velocity is the fastest, reaching 3.81 m/s. Meanwhile, the flame is very close to the oil pipe, which may cause a secondary fire. Therefore, hot surface ignition of lubricating oil poses a direct threat to vehicle safety.

The Asean Action towards the Impact Trade War between The Us and China

The trade war between the United States (US) and China has significantly impacted the Association of Southeast Asian Nations (ASEAN), posing a direct threat to its diplomatic and economic structures. The aim of this study is to study the impacts of Trade War between US and China towards the ASEAN. By employing a qualitative method, secondary data was collected from scientific materials such as books, papers, journals, and online sources. The study utilizes the concept of national interests to explain the phenomenon under investigation. The research highlights that ASEAN has begun taking actions to mitigate the drawbacks of the trade war while maximizing the benefits it brings. These actions include promoting regional economic integration, developing local businesses, strengthening internal cooperation within ASEAN, and diplomatic efforts externally.

The Role of Thessaly in Argead Foreign Policy and a Case of Invented Tradition

In antiquity, the Thessalians and the Macedonians, neighbors on the periphery of the Greek world, were perceived as primitive uncultured boors, whose political instability and proclivity to luxury left them open to collaboration with the Persians, the archetypal foreign enemy of the Greeks. As time went on, these stereotypes gradually shaded into hostile caricatures bearing little relation to reality, a process that heated up after Philip II of Macedon began to replace the Persians as a direct threat to the continued autonomy of the Greek poleis. In this contribution, I re-examine the role that the traditional Argead alliance with the Aleuads of Thessaly played in Philip’s ultimate conquest of Greece, thereby contributing to the development of the unflattering stereotypes that they both shared. The close connection between Philip and the Aleuads is also responsible for the retrojection to his Argead predecessor, Archelaos, of an intervention in Thessaly actually waged by Philip’s brother, Alexander II.

Medical Lysenkoism.

Medicine is a compound field composed of science and art. The (necessary) degree to which the latter is involved opens medicine, in particular, to the introduction of ideas which do not, by their very nature, submit to confirmation or confutation as do the various methods of traditional science. This paper explores several ways in which a Lysenkoistic ideology can be interjected into medicine changing the manner in which it interacts with both patients and society. Simply, when ideology supersedes evidence the edifice of Western Medicine comes under direct threat. The exploration of this emerging ideological transition in medicine, and science more broadly, is of critical importance to determine the most salutary path forward.

How institutionalized feedback works: Online citizen complaints and local government responsiveness in China

AbstractThe prevailing view that authoritarian regimes primarily respond to threats of instability is challenged by our research, which posits that such regimes also take citizen complaints seriously, even when they do not pose a direct threat. Based on 238,835 citizen claims from China's largest national online petition platform from 2020 to 2021 and 793,119 citizen claims from Wuhan's local petition website, this study reveals that online complaints result in greater governmental responsiveness, compared to non‐complaints. This institutionalized feedback mechanism is driven by a mix of factors: the upper‐level officials' expectation for negative feedback, combined with bureaucrats' efforts to preserve themselves and avoid punitive consequences. Our findings thus enhance the understanding of what drives authoritarian responsiveness and signal a caution that an overreliance on managing complaints may deepen a stability‐maintenance mechanism, potentially impeding substantial reform.

THE SECOND WORLD WAR IN THE EASTERN INDIAN FRINGES: THE CASE OF TRIPURA

From the dawn of human civilization, the history of mankind has recorded multiple events of conflicts, battles & wars. But it has never witnessed something destructive & devasting like World War II (1939 -1945). This global conflict between Allied & Axis powers lasted for 2191 days, involving as many as 110 million armed soldiers from 72 nations. At least 50 million people lost their lives in this great war among them 28 million were innocent civilians. Major cities across Europe and Asia, including Berlin, London, Warsaw, Tokyo, and Hiroshima, were extensively bombed and reduced to rubble. In the initial stage, the war was only confined to European nations though their colonies in Asia & Africa were indirectly affected severely. But with time, the African colonies caught fire from this war and in later stages, it spread all over Asia. India, being a British colony at that time was pushed into the war by its colonial masters who looked over the will of Indian masses. The British Government exploited India's valuable resources and labour force for the War preparations. The heat of the war also reached Tripura, a small princely state under the British Suzerainty. The involvement of Japan in the Second World War and its hasty advancement on the eastern front changed the whole scenario of the war from the Indian perspective. The fall of Burma at the hands of the Japanese brought the war to the very door of India. As a result, Tripura and the northeastern region fell under the direct threat of the Japanese offensive. In this paper, I have attempted to sketch a picture of Princely Tripura of that time concerning the Second World War. Here I have discussed extensively about the threat of Japanese invasion, economic strains, military organizations, war preparations, and other administrative activities in the state, all centred around the Second World War. In the middle of the war, the Congress-led ‘Augst movement’ or ‘Quite India movement’ increased difficulties for the trouble-torn British Raj. The turmoil created all over the country by the ‘Quite India Movement’ also impacted the state of Tripura. Here I also tried to track down the events related to the ‘Quite India Movement’ in Tripura during the war and how the ruling class of princely Tripura met those challenges. In a nutshell, through this paper, an attempt has been made to shed light on the relevant events, that took place in princely Tripura during the Second World War and analyse different events & developments related to it from various socio-economic and political aspects. Nevertheless, this paper is a small initiative for the history enthusiast to enhance the understanding of the role of Tripura in a global phenomenon like World War II and to reconstruct the events in a systematic way to conduct further study. KEYWORDS: Allied power, Axis power, Tripura, British suzerainty, Northeastern India, Invasion, Burma.

7.C. Scientific session: Commercial determinants of health: impeding attainment of the Sustainable Development Goals

Abstract The commercial determinants of health (CDOH) and the adverse impacts they have on health equity globally, have recently emerged as an innovative growing field of research in public health. The corporate playbook comprises a myriad of strategies and tactics that aim to enhance profitability for the commercial actors, while harming health and posing grave risks to planetary health for current and future generations. The literature however, rarely explicitly makes the connection between commercial determinants and the impact they have on the attainment of the Sustainable Development Goals (SDGs) set out by the United Nations in 2015. This workshop aims to use the commercial determinants of health framework as a new approach to draw attention to, and make linkages between, commercial determinants and the challenges they pose to the attainment of several if not all the global SDGs. The four presentations showcase exemplars of the commercial determinants to include the firearms industry, fossil fuel industry, food industry and the tobacco industry focusing on impacts in low- and middle-income countries (LMICs). The workshop will start with a brief overview of the CDOH framework, their corporate playbook, and the progress in SDG attainment globally while presenting the first case on the firearms industry trade impacting armed conflicts that impede SDG 3 (good health and wellbeing), 10 (reduced inequalities), and 16 (peace, justice and strong institutions). The second presentation will discuss how the fossil fuel industry uses greenwashing tactics to conceal its harmful activities thereby compromising SDGs 7 (affordable and clean energy), 11 (sustainable cities and communities), and 13 (climate action). The third presentation will address how the tobacco industry impedes the advancement of SDG 3, 8 (decent work and economic growth), 13 (climate action) and 17 (partnerships for the goals) perpetuated by national system level attributes. The last presentation will showcase how the food industry challenges SDG 3 in its production of ultra-processed foods. The workshop will draw on evidence from LMICs, but is also eye opening for high-income countries of Europe which face industry interference in social and health policymaking progress in SGD attainment. The audience will be engaged in a short warm-up exercise at the start of the workshop through an app for real-time feedback accessed through a QR code on the screen, and will interact with the presenters at the end of the workshop if time permits. Key messages • All commercial actors pose a direct or indirect threat to progress in attaining the SDGs. • The commercial determinants of health pose are in direct contradiction to the SDG 17 through their corporate playbook.

‘Hungarian Factor’ in Central and Eastern European Politics of France (Spring — Summer 1920)

This article examines the role and significance of the “Hungarian factor” in the central and eastern European political landscape of France during the period from April to August 1920. The novelty of this research lies in its analysis not only of the bilateral Franco-Hungarian interactions but also of how Paris’s perceptions of Hungary’s place in Europe were intertwined with other vectors of the Third Republic’s foreign policy. The study utilizes published French diplomatic documents, the diary of General Edmond Buat, Chief of Staff of the French Army, and select reports from General Artus de la Panouse, the French military attaché in the United Kingdom. The author concludes that the “Hungarian factor” influenced the central and eastern European policy of the Third Republic in a contradictory manner. It is demonstrated that France’s view of Hungary as a defeated nation served Paris’s objectives of affirming its status as a victorious power, consolidating a belt of friendly states in Central-Eastern Europe, and expanding its financial and economic presence. At the same time, it is emphasized that Hungary was not perceived as a direct threat to the interests of the Third Republic; rather, in the context of the Red Army’s advance westward, it could potentially be integrated into an anti-Soviet coalition.

Highlights From the 2023 Revision of Pediatric Tactical Emergency Casualty Care Guidelines.

In 2023 the Committee for Tactical Emergency Casualty Care (C-TECC) issued updated Pediatric Tactical Emergency Casualty Care (TECC) Guidelines (Guidelines) that focus on the delivery of stabilizing care of children who are the victims of high-threat incidents such as an active shooter event. The Guidelines provide evidence-based and best practice recommendations to those individuals and departments that specifically provide operational medical support to law enforcement agencies caring for children in this uniquely dangerous environment where traditional resources may not be available. This article highlights key takeaway points from the Guidelines, including several updates since the first version was released in 2013.The evidence base for the care of children in this environment is lacking, and medical care delivered in the high-threat environment is inconsistent and often not optimized for the care of infants and children. The Guidelines are supported from the existing literature base where possible, and where it is not, by consensus as to the current best practices as determined by iterative deliberations among the diverse and experienced group of stakeholders who are members of C-TECC. The Guidelines provide patient assessment and management information specific to the care of children in the following 3 dynamic phases of the high-threat environment: Direct Threat, Indirect Threat, and Evacuation. The phases represent a continuum of risk to the patient and the responder ranging from extreme (such as ongoing gunfire) to minimal (during movement toward definitive medical care).The high-threat environment is dynamic and there is competing safety, tactical/operational, and patient care priorities for responders when infants and children are injured. The Guidelines provide recommendations on the type of medical and psychological care that should be considered under each phase of threat and establishes the context for how and why to deliver (or potentially defer) certain interventions under some circumstances in order the maximize the opportunity for a good outcome for an injured pediatric patient. The Guidelines also emphasize the importance of synergizing hospital-based pediatric trauma care with those law enforcement and fire/emergency medical services that may provide field care to children under high-threat circumstances.

Selected victim protection measures in ordinary criminal proceedings

The victim becomes a participant in the criminal proceedings not because he or she has consciously made such a decision. It is almost always that the victim becomes a participant against their will, which is caused by a direct violation or threat to its legal interest by a criminal offence. This is reflected in the legal definition of the victim contained in Article 49 § 1 of the Criminal Procedure Code (hereinafter CPC) . Cezary Kulesza notes that this definition contains the following elements: subjective (natural or juridical person) and objective, relating to the legal interest infringed by the criminal offence to the extent defined by that provision, but also a provision of substantive criminal law (Kulesza, 1995, p. 17–18). The victim's participation in criminal proceedings makes the victim a participant in those proceedings, whether natural or juridical person, and that participation is limited to fulfilling the role assigned to them by the criminal procedural law (Tylman, 2003, p. 47). The legislature attributes three roles to the victim: in the pre-trial proceedings, the victim is a party (Article 299 § 1 CPC), in the judicial proceedings, the victim may be an auxiliary prosecutor (Article 53 CPC), incidental or subsidiary, and in the course of the entire criminal proceeding, also a testimonial evidence source (Article 177 § 1 CPC, Article 185a § 1 CPC, Article 185c CPC). The status of a party to pre-trial proceedings is acquired by operation of law and does not require the victim to take any action. The situation is different in judicial proceedings, where acquiring the status of auxiliary prosecutor requires a certain effort to by the victim, namely expressing the will to act in that capacity.

Silicate Derived from Phaeodactylum tricornutum for Removal of Polystyrene: Interfacial Effects of Living Organism and Its Derivatives with Nanoplastics.

The deposition of nanoplastics in the environment poses a direct threat to human health through the food chain. There is an urgent need to investigate how they can be effectively removed from water. In this work, the toxic effects of nanopolystyrene (PS) at different concentrations on Phaeodactylum tricornutum (PT) were investigated. The results show that PS affects the cell activity of PT through cell wall adhesion and shading effect and hinders the transmission of light energy, thus inhibiting the growth of PT. Considering that living PT is not suitable for the removal of heterogeneous aggregation of PS, magnesium silicate (MS) was obtained by calcination of PT biomass based on retaining salt. The maximum adsorption capacity of PS by MS was 40.85 mg g-1, which was 10 times higher than that of conventional adsorbents. The presence of competitive anions significantly affects the removal of PS. The application in real water bodies and the reusability of the adsorbents were also verified. By characterizing the materials before and after adsorption, it is found that the adsorption mechanism mainly includes electrostatic attraction, hydrogen bonding, π-π interaction, and complexation between Si-O bond and PS. This study explains the toxic effect of nano-PS on PT and innovatively develops a biomass derivative from diatoms, which provides a novel and feasible strategy for environmental remediation.

Why biodiversity matters in agriculture and food systems.

Imagine a world where the variety of food sources we rely on is reduced to a mere handful of species. This is not a dystopian future. It's the path we are on right now, and it's happening silently in fields, farms, and forests across the globe. Biodiversity-the lifeblood of our ecosystems and food systems-is under siege. Driven by climate change, habitat destruction, and the relentless march of agricultural expansion, we are witnessing an unprecedented erosion of genetic diversity. This loss is more than just a scientific or environmental concern; it's a direct threat to global food security, and by extension, human survival.

Conservation of degraded and technologically contaminated lands of Ukraine damaged as a result of military aggression of the Russia: problems of legal regulation

The article is devoted to the study of the problems of legal regulation of conservation of degraded and technogenically polluted lands of Ukraine, which were damaged as a result of Russian hostilities. The article states that the military aggression of the Russian Federation has transformed the territory of Ukraine since 2014 into a military-technologically tense region of Europe. These events caused catastrophic consequences for the state of land resources and soils of the state. It was found that the constant use of military means of destruction is a powerful polluter of the soil cover and poses a direct threat to the population. It has been proven that one of the important factors that will contribute to the restoration of the condition of lands and soils in Ukraine after the end of hostilities is the use of land conservation, which is a powerful measure of land and soil protection, will contribute to the restoration of soil fertility and their further use. It is noted that to date there are certain deficiencies in the legislation of Ukraine in the field of conservation of technogenically polluted and degraded lands that have been violated as a result of the military aggression of the Russian Federation. The article establishes the expediency of supplementing the provisions of the Land Code of Ukraine and the Law of Ukraine “On Land Protection” with the concept of technogenically polluted and degraded lands damaged as a result of military operations. It is noted that it seems appropriate to introduce a special legal regime for man-made and degraded lands subject to conservation as a result of hostilities and emergency situations. Conclusions were made about the necessity of conservation of technologically polluted and degraded lands that were damaged as a result of hostilities. The expediency of adding provisions to the land legislation of Ukraine regarding the protection and rational use of this type of land has been proven.

The biosynthesis of ZnO nanoparticles using Synadenium grantii latex: characterization and evaluation of their antimicrobial activities

The steadily rising incidences of microbial and infectious diseases pose a direct threat to both human and animal sustainability. Over the previous 20 years, the expectations for eco-friendly nanoparticles application as contemporary medicinal agents have grown. This is why, as opposed to using hazardous chemicals, researchers have recently concentrated on simple, green, sustainable, and affordable ways to create nanoparticles. This research aimed to use the latex of Synadenium grantii to synthesize ZnO NPs (zinc oxide nanoparticles) using a simple and environmentally friendly technique. The observation of the maximum wavelength at 365 nm using Ultraviolet-visible (UV-Vis) spectrometry signified the formation of zinc oxide nanoparticles. The FT-IR (Fourier transform-infrared) spectrometry indicated the bands of various biomolecules (mainly polyphenols at 1541 cm-1 wavenumber) involved in reducing and capping zinc oxide nanoparticles. The XRD spectrum demonstrated the wurtzite phases of ZnO nanoparticles of 24 nm in size. The synthesized ZnO NPs demonstrated great anti-microbial potency compared to the positive control (ampicillin) as tested on Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). The study confirmed the presence of various chemical compounds in latex of Synadenium grantii responsible for the synthesis of ZnO NPs with enhanced anti-bacterial effects in comparison to the latex extract.

An Update on the Conservation Status Assessment of two Endangered Freshwater Mussel Species in Bavaria, Germany

ABSTRACTThe two highly endangered European mussel species Margaritifera margaritifera and Unio crassus are target species of conservation. Based on a recently completed systematic state‐wide monitoring of each 22 M. margaritifera and 22 U. crassus streams in Bavaria, Germany, we present an update on population trends, conservation status, habitat quality and threats for both species. Populations status and habitat quality varied strongly between M. margaritifera and U. crassus streams, but there was also great variability within each of those groups. The population decline of M. margaritifera has continued, albeit higher proportions of juveniles originating from artificial breeding programmes have been established in some streams. Habitat quality often did not match known requirements as evident from poor stream bed quality, lack of hosts and elevated nutrient levels. In contrast, U. crassus populations showed a better status, with an increase in population size over all sampled streams. Successful recruitment was indicated by high proportions of juveniles. However, no mussels older than 16 years were found, probably due to predation and structural stream maintenance measures. Climate change effects, such as extreme droughts, affected both species. This study demonstrates different needs in conservation management for both species. Although mitigation of drought effects is commonly needed for both species, tackling host fish management and direct threats such as predation should be prioritized in U. crassus, whereas restoration of prime habitat quality and intact catchments is key to enable natural recruitment and sustainable populations of M. margaritifera.

Impact of the “Mengabu (Facing Ash Storms) Disaster Preparedness” Program on Adolescents’ Knowledge About Disaster Preparedness in Kresik Tuo Village, Kayu Aro District, Kerinci Regency, Jambi

Natural disasters have become an integral part of people's lives in Indonesia, disrupting daily activities and causing significant impacts. Indonesia, located in the Ring of Fire, faces a high risk of volcanic eruptions, including the active Mount Kerinci which has the potential to cause disasters such as volcanic ashfall. Kresik Tuo Village, located near Mount Kerinci, faces a direct threat from this eruption. The community, especially the youth, need to improve their preparedness and knowledge to deal with potential disasters. The "MENGABU Siaga dalam Bencana" program is designed to improve the preparedness of the Kresik Tuo Village community in dealing with potential volcanic ashfall, with the hope of contributing to the development of community preparedness strategies in disaster-prone areas. To improve the knowledge of youth in Kresik Tuo Village related to disasters and disaster preparedness. The study used the Pre-Experimental research method with a Prepost Test Design. Sampling used a non-probability sampling technique with convenience sampling according to the inclusion and exclusion criteria of 40 respondents. Wilcoxon test shows that there is a significant increase in the knowledge of youth preparedness for the eruption of Mount Merapi after being given the "Mengabu Siaga dalam Bencana" program. All respondents experienced an increase in knowledge, as indicated by a positive ranks value of 40 and a p value = 0.000. Conclusion: The results of the study indicate that there is a significant effect of the "Mengabu (Mengabu Storm Ash) Siaga Dalam Bencana" Program on Youth Preparedness Knowledge for Disasters in Kresik Tuo Village, Kayu Aro District, Kerinci Regency, Jambi in increasing youth knowledge.

Impact of heat stress on female reproduction in farm animals: challenges and possible remedies

Global warming poses significant challenges to agriculture, particularly within the livestock industry. Heat stress in animals refers to the physiological and metabolic distress experienced when environmental heat causes an animal’s body temperature to exceed its thermoneutral zone. Heat stress has a significant detrimental impact on reproductive outcomes, posing a direct threat to the profitability of livestock operations. Heat stress disrupts the normal hormonal balance essential for reproduction in female livestock, adversely affecting events of folliculogenesis and embryogenesis. As a result, the developmental competence of oocytes is compromised, which is crucial for successful fertilization and reproduction. Consequently, heat stress can lead to issues such as immature oocytes, atypical or sluggish embryonic development, silent estrus, and increased pregnancy loss causing a decline in reproductive rates and livestock owners face substantial financial losses. Despite using various cooling strategies, such as water sprinkler systems, cooling shades, and cooling devices, these measures are often insufficient to restore normal reproductive rates. Therefore, it is crucial to implement and explore novel strategies to enhance reproductive efficiency during periods of heat stress. Potential mitigation techniques include estrus synchronization, artificial insemination, hormonal alterations, embryo transfer, genetic engineering, sophisticated breeding strategies, the use of nutraceuticals, and changes in management practices. This review aims to consolidate recent findings on the adverse effects of heat stress on female reproduction, especially in tropical environments, and to evaluate potential strategies for improving summer fertility of livestock. Bangladesh Journal of Animal Science 53(3): 77-100, 2024

Syria in Turkey-US Relations: Security, Terror and Strategic Dilemmas

Turkey-US relations have historically been influenced by periodic developments, sometimes becoming strong or fragile. In this context, the relations between Turkey and the US have been deeply affected by the presence of the PKK/PYD/YPG in northern Syria and the US support for these groups. Turkey considers the PYD/YPG as an extension of the PKK and perceives it as a direct threat to its national security. On the other hand, the US supports this group by renaming it the Syrian Democratic Forces (SDF) and describing it as the most effective ground force against DAESH. This situation has damaged the relationship between the two NATO allies, leading to diplomatic crises and regional strategic misalignments. Turkey’s cross-border operations and the US support for the PYD/YPG are the most significant points of tension overshadowing the common interests of the two countries. Despite these challenges, Turkey and the US have the potential to protect their common interests in counter-terrorism and regional security matters. This study analyzes how Turkey’s policies in Syria have been shaped by the US support for the PYD/YPG and how the tensions in this context have affected the strategic goals of both countries. Turkey’s national security strategies and its cooperation dynamics with the US can be reshaped through diplomatic negotiations and strategic cooperation mechanisms. In this framework, the advancement of relations on a more constructive basis will be possible if both sides act with mutual understanding and flexibility.

COUNTERING THE SPREAD OF EXTREMIST IDEOLOGY AMONG YOUNG PEOPLE: PROBLEM STATEMENT

Currently, extremism is characterized by the presence of an appropriate ideology, which is very actively and rapidly improving in the context of modern international conflicts and domestic crises observed in the Russian state, which contributes to the entrenchment of illegal ideas and views in the minds of the population, especially among the younger generation, and increases the number of offenses and crimes of extremist orientation. The spread of extremist ideology poses a direct threat to the national interests of the Russian Federation, undermines the stability of the state, causes social conflicts and contributes to the radicalization of various groups of the population, which necessitates a competent and effective policy of countering the ideology of extremism. The article focuses on the activities of law enforcement agencies and civil society institutions to counter the spread of extremist ideology among young people, and provides examples of the interaction of these entities on the territory of the Kabardino-Balkarian Republic. It is concluded that only an integrated approach, including both measures to curb extremist activities and preventive measures aimed at creating conditions for the harmonious development of society, can effectively counter the threat of the spread of extremist ideology.

From the Screen to the Streets: Technology-Facilitated Violence Against Public Health Professionals

This qualitative study sought to explore the experiences of public health professionals in Canada who were targets of harassment, abuse, and threatening behavior during the COVID-19 pandemic. Public health professionals from across Canada who held responsibility for public health measures in their respective jurisdictions participated in in-depth interviews. Using constructivist grounded theory and constant comparative analysis a cycle of violence was identified. Results revealed that as infections and deaths due to COVID-19 began to rise across the globe, participants engaged in efforts to educate the public through mainstream media and social media. While education efforts were generally positively received at the onset of the pandemic, as collective frustration with public health restrictions rose and misinformation began to proliferate, social media fueled outrage and polarization, and public anger began to focus on public health officials. Harassment, abuse, and threats on social media were followed by threats delivered through telephone and paper mail, and finally direct physical threats and confrontation—which were then glorified and amplified on social media. As reported by others, harassment and abuse were particularly virulent for public health professionals who were women or visible minority individuals. We conclude that the pattern of abuse identified in this study is reminiscent of the cycle of violence previously identified with respect to those who become radicalized on social media. These findings serve as a poignant example from which to develop guidelines for all professionals and researchers at risk of online abuse both in the health sector and beyond.