Emergency Situations Research Articles

Training and education of operating room nurses in robot-assisted surgery: a systematic review.

With the introduction of robot-assisted surgery, the role and responsibility of the operating room nurses have been expanded. The surgical team for robotic-assisted surgery depends on the ability of the operating room nurses to operate and handle the robotic system before, during, and after procedures. However, operating room nurses must acquire the necessary competencies for robotic-assisted surgery. We performed a systematic review using the databases MEDLINE and EMBASE to review the evidence on educating and training operating room nurses in robot-assisted surgery. Studies describing operating room nurses' training and team-training with operating room nurses for robot-assisted surgery were included. The Medical Education Research Study Quality Instrument (MERSQI) and the Newcastle-Ottawa Scale-Education (NOS-E) were used to evaluate the quality of the included studies. We identified 3351 potential studies and included 16 in the final synthesis. Nine studies focused on team-training in robot-assisted surgery: four focused solely on training for operating room nurses, and only three on operating room nurses as first assistants in robot-assisted surgery. Most studies examined team-training in RAS, including OR nurses, focused on emergency situations and conversion to an open procedure. Only a few studies addressed other competencies relevant to OR nurses in RAS. No randomized controlled trials were identified. Only a few studies used pre- and post-testing, and only one examined clinical outcomes. The quality assessment of the included studies was moderate to low, with a median MERSQI score of 10.3 and a median NOS-E score of 2. There is sparse research on the education of operating room nurses in robot-assisted surgery, and the literature emphasizes the training of surgeons. More research is needed to develop evidence-based training for operating room nurses in robot-assisted surgery.

Role of gene polymorphism in the development of disorders of the lipid profile in individuals exposed to chemicals

Introduction. The prevalence of arterial hypertension and dyslipidemia in the Russian population exceeds 50%. By a number of working industrial factors have been proved to play the negative role in their development. The results of earlier studies indicate to the epigenetic role of toxic substances in relation to various genes. The aim of the study was to establish associations of polymorphic variants of cardiovascular risk genes with disorders of lipid metabolism in workers performing liquidation works in the accumulated environmental risks zone. Materials and methods. Ninety two and 82 employees from Federal Environmental Operator (FEO) and EMERCOM, respectively were studied. Parameters of lipid metabolism and polymorphic variants of APOE Cys130Arg (rs429358) and PPARG Pro12Ala (rs1801282) genes were investigated. Results. In FEO workers, each variant allele of the APOE Cys130Arg gene is associated with impaired LDL-C concentration in an additive manner (OR = 2.69; 95% CI = 1.03–7.08, p=0.04). Carrying either the T/C or C/C variant allele of this polymorphic variant or the C/G or G/G polymorphic variant Pro12Ala of the PPARG gene increases the odds of developing abnormalities in total cholesterol levels by more than 3.5-times. The risk influence of the mutant genotype G/G and allele G on the increase of Apo B concentration was also established. In EMERCOM workers, the presence of both alleles of this polymorphic variant increased the probability of a decrease in HDL-H levels by 5 times. Limitations. Male persons are employees of the FEO and the Ministry of Emergency Situations. Age accounts of 30–50 years. Conclusions. An increased risk of deviations of total cholesterol concentration, proatherogenic cholesterol, and lipoprotein fractions associated with the PPARG Pro12Ala and APOE Cys130Arg genes polymorphisms was found in FEO workers, whereas only the reduced high-density lipoprotein cholesterol risk in carriers of the PPARG Pro12Ala gene mutant allele was found in EMERCOM workers.

Effectiveness of intraosseous access during resuscitation: a retrospective cohort study

PurposeDuring resuscitation in emergency situations, establishing intravascular access is crucial for promptly initiating delivery of fluids, blood, blood products, and medications. In cases of emergency, when intravenous (IV) access proves unsuccessful, intraosseous (IO) access serves as a viable alternative. However, there is a notable lack of information concerning the frequency and efficacy of IO access in acute care settings. This study aims to assess the efficacy of intraosseous (IO) access in acute care settings, especially focusing on children in a level 1 trauma center.MethodsThis retrospective study included patients with IO access presented in a level 1 trauma center emergency department (ED) between January 2015 and April 2020. Data regarding medication and fluid infusion was documented, and the clinical success rate was calculated.ResultsOf the 109,548 patients that were admitted to the ED, 25,686 IV lines were inserted. Documentation of 188 patients of which 73 (38.8%) children was complete and used for analysis. In these 188 patients, a total of 232 IO accesses were placed. Overall, 182 patients had a functional IO access (204 needles) (88%). In children (age < 18 years) success rate was lower as compared to adults, 71–84% as compared to 94%. However, univariate regression showed no association between the percentage of functional IO access and gender, age, weight, health care location (prehospital and in hospital), anatomical position (tibia as compared to humerus) or type of injury.ConclusionIntraosseous access demonstrates a high success rate for infusion, independent of gender, age, weight, anatomical positioning, or healthcare setting, with minimal complication rates. Caution is especially warranted for children under the age of six months, since success rate was lower.

Tracking Blood Product Wastage over a 6-year Period in Virginia Commonwealth University Medical Center

Abstract Introduction/Objective Blood transfusions are a necessary practice for hospital emergency and surgical department. In emergent situations, blood components are in unmonitored settings during transit of critically ill patients. Any unused blood products are returned to the blood banks outside of a controlled temperature environment and are no longer viable to use. This study seeks to collect the average amount of blood products wasted in the Emergency and Surgery Department at Virginia Commonwealth University’s (VCU) Main Hospital. In addition, the study intends to highlight the budget that is impacted by these wasted blood units. Methods/Case Report Emergency Stock Records of VCU’s Hospital Emergency Department, Operating Room, Children’s Hospital of Richmond’s (CHoR) Emergency Department, and the CHoR’s Operating Room were collected and accumulated by the Transfusion Service’s Quality Assurance Coordinator. VCU’s Main Hospital Emergency Department monitors blood unit viability with a sensitive temperature indicator on each unit of blood stored in unmonitored refrigerators. Blood units above 10 degrees Celsius trigger the indicator and are required to be discarded. Our study collected a tally of these discarded units due to a triggered temperature indicator from 2018 to 2023. Acquisition cost per blood unit was estimated to be approximately $250 and overhead cost per unit was estimated to be $760. Results (if a Case Study enter NA) From 2018 to 2023, VCU’s health system wasted an average of 89.16 blood units per year due to the triggered temperature indicators, with a total of 535 units wasted over six years. The average annual cost of the wasted units totaled $90,058.33 per year ($22,291.67 and $67,766.67 in acquisition and overhead costs, respectively); cumulative cost over the 6 years amounted to $540,350 ($133,750 and $406,600 in acquisition and overhead costs, respectively). Conclusion With a notable number of resources and funding lost in the process due to blood unit wastage, an administrative discussion should focus on the use of high-level remote- controlled automated refrigerators in lieu of manual temperature indicator to reduce the expenditure and wastage of blood products.

Transformation and development of simulation-based education and child first aid skills training

Background: Simulation-based medical education is a complex learning methodology in different fields. Exposing children to this teaching method is uncommon as it is designed for adult learning. This study aimed to develop and implement simulation-based education in first aid training of children and investigate the emotions of children in post-simulation scenarios that replicate emergency situations. Methods: This was a phenomenological qualitative research study. The participants attended the modified “Little Doctor” course that aims to train children in first aid and, subsequently, completed simulation scenarios. The children attended focus groups and were asked about their experiences of the course and how they felt during the simulation scenarios. Results: 12 children (Age 8–11 years old) attended the course, and 10 completed the simulation scenarios and focus groups. The major theme derived from was the simulation experience’s effect, which was divided into two subthemes: the emotion caused by—and the behavioral response to—the simulation. The analysis revealed shock and surprise toward the environment of the simulation event and the victim. The behaviors expressed during the simulation scenarios ranged from skill application and empathy to recall and teamwork. Conclusions: Simulation scenarios were successfully implemented during the first-aid training course. Although participants reported mixed feelings regarding the experience, they expressed confidence in their ability to perform real-life skills.

FORMATION OF PROFESSIONAL COMPETENCE OF FOREIGN STUDENTS AT THE DEPARTMENT OF CHILDREN INFECTIOUS DISEASES

The article highlights the experience of professional competence formation of foreign medical students with an English-language form of education at the Department of Children Infectious Diseases of the Ivano-Frankivsk National Medical University. Traditional and interactive teaching methods used during classroom work with students are described. Professional competence involves the ability to use knowledge, skills and abilities in practice effectively. For future doctors, it includes mastering diagnostic methods, emergency situations management, and using modern technics of diagnosis and treatment. Aim. The aim is to describe and analyze methods of professional competence formation of foreign students at the Department of Children Infectious Diseases during classroom work. Research results. At the Department of Children Infectious Diseases, foreign students study children infectious diseases and elective disciplines - immunoprophylaxis of infectious diseases, clinical parasitology and tropical medicine. When teaching medical disciplines to foreign students, it is necessary to take into account their insufficient level of Ukrainian language proficiency, which is an obstacle to communicating with patients and fully mastering the method of taking anamnesis when working in the hospital near the patient’s bedside. Therefore, the teacher also plays the role of an interpreter. During practical classes control of the input level of knowledge is carried out with the use of multiple choice questions. The final level of knowledge is monitored using situational tasks. Work with the theoretical material takes place in the form of a discussion, the "round table" method with "brainstorming". The main part of the practical class is conducted at the patient's bedside in the departments of the infectious disease hospital. The teacher translates during direct communication between students and patients, corrects the techics of the examination. During classes, students receive structured mini-cases with a description of a clinical case and work in small groups. During case discussions, the teacher is liberal, ready to listen to various opinions and ways of solving a problem situation. Students of the fifth year visit lectures, during which teachers demonstrate multimedia presentations with graphs, schemes of pathogenesis, photos of patients. Combining the lecturer's comments with video information and animation greatly enhances the attention of the audience. Demonstration of clinical cases during the lecture, followed by a discussion in a dialog mode, is valuable. During the lectures, information about the epidemiological situation regarding a particular disease in the countries from which the students came is presented and discussed. Conclusion. For professional competence formation of future doctors, a combination of traditional and interactive teaching methods is effective. In the process of the professional competence formation, all its components should be taken into account: cognitive, motivational and personal. The use of the case method increases cognitive interest, promotes the development of communication skills and clinical thinking. A competent, highly qualified teacher who is fluent in English and uses modern information sources, is an active organizer and participant in the educational process.

Analysis of the application of natural circulation of cooling media in shipboard reactor installations

In projects of floating facilities with a nuclear power plant, great importance is attached to the formation of a set of properties of the internal self-protection of the reactor, i. e. the development of properties that ensure its safety based on natural feedbacks, processes and characteristics. To do this, the RU project is based on physical patterns and technical solutions that prevent or minimize possible consequences from emergency situations. In particular, the natural circulation of the coolant in case of loss of power supply by the circulation pumps of the first round allows cooling the core after its transfer to a subcritical state. However, in order for a natural circulation to occur sufficient to ensure nuclear and radiation safety, certain conditions must be met in a particular case. The paper notes that the most important property of reactor installations of nuclear vessels is their ability to ensure natural circulation of the coolant in emergency situations, as well as when operating at capacity. This makes it possible to reduce the dependence of reactor plant safety on the technical condition of power supplies. Currently, natural circulation of auxiliary cooling media in passive safety systems is also widely used in reactor installations. These include emergency reactor cooling systems using an emergency cooling system, including using intermediate heat exchangers; reducing emergency pressure in the protective shell in case of an accident with a large coolant leak; cooling the reactor vessel in an out-of-design accident with the formation of corium. The paper proposes a method for preliminary analysis of the reactor plant’s ability to ensure natural circulation of the coolant, which allows us to compare various design solutions that contribute to an increase in coolant consumption during natural circulation. It is shown that for the operation of the reactor plant in stand-down mode and at energy power levels with natural circulation of the coolant, it is advisable to switch to boiling reactors. Passive safety systems using natural circulation have received special development on new nuclear vessels of projects 20870, 22220, 10510. Further development of safety systems using natural circulation to move cooling media is predicted.

ОСОБЕННОСТИ ОКАЗАНИЯ ПЕРВОЙ ПОМОЩИ И ПСИХОЛОГИЧЕСКОЙ ПОДДЕРЖКИ ДЕТЯМ В ЭКСТРЕННЫХ И ЧРЕЗВЫЧАЙНЫХ СИТУАЦИЯХ

The issue of interaction of employees of EMERCOM of Russia with children is highlighted. The activities and measures contributing to maximizing the effectiveness of emergency rescue, evacuation, and rescue operations involving children are presented. Revealing the issue of national security of the country, we touch upon the description of the protection of the population and territories from emergency situations. Protection is provided by the availability of highly qualified specialists. Special attention is paid to such components as: knowledge of child psychology, physical fitness, personal qualities (responsibility, endurance, sociability, observation), stress resistance. The rationale for the measures of a careful algorithm of work when working with children is as follows: in the event of an emergency, it is necessary to act decisively and quickly, and at the same time carefully and thoughtfully.

Korean Triage and Acuity Scale education using role-playing and its effects on triage competency: A quasi-experimental design.

Triage is the process of prioritizing patients in the emergency department (ED). This has a pivotal role in ensuring patient safety and that the ED operates smoothly; therefore, triage training education is an important aspect of triage nurses' preparedness in different emergency situations. This study employed a quasi-experimental research design using a non-equivalent control group pre-post-test design to verify the effect of the Korean Triage and Acuity Scale (KTAS) education using role-playing on the knowledge of triage, triage performance ability, and triage competency in nursing students. Participants were 78 fourth-year nursing students from Shinseong University in South Korea; 39 were assigned to the experimental group, and 39 to the control group. The intervention was conducted for three weeks, from January 31 to February 16, 2024. The experimental group received KTAS education through role-playing, whereas the control group received triage education through lectures. Triage knowledge (t = 2.94, p = .004) and triage performance ability (t = 3.11, p = .003) were significantly improved in the experimental group. However, there was no significant difference in triage competency between groups (t = 1.32, p = .192). The post-test score of triage record in the experimental group showed a significant improvement over time (t = 0.56, p < .001). This study demonstrated that KTAS education using role-playing was more effective in improving triage knowledge and performance ability than traditional lecture methods for nursing students. Triage education programs should be developed considering the effectiveness of various teaching methods.

Considerations for the safe handling and processing of unstable materials

AbstractWe evaluate the instability hazards of initiators, monomers, and other unstable materials during storage and handling in individual containers, pallets of containers, and storage and process vessels. We propose a simplistic model to analyze the temperature–time profile of an unstable chemical, given heat transfer from/to the environment, heat generation due to decomposition and other reaction kinetics, and heat generated from auxiliary equipment (e.g., agitators/mixers, pumps, vessel jackets). Lumped capacitance‐based heat transfer and decomposition kinetics are integrated to predict self‐accelerating decomposition temperature (SADT), self‐accelerating polymerization temperature (SAPT), and the temperature profile given exposure conditions (e.g., ambient temperature and additional sources of heat). Case studies related to the storage and processing of unstable liquid monomers (i.e., methyl methacrylate, MMA), and organic peroxides, (i.e., tert‐butyl peroxybenzoate, TBPB), are presented. We also provide recommendations on determining safe storage and processing temperatures and steps to prevent emergency situations and include an overview of thermal analysis and data treatment procedures which might affect chemical process safety recommendations.

Low-Profile Minos TM Stent Graft System for Endovascular Abdominal Aorta Aneurysm Repair—Early and Late Outcomes in Elective and Emergent Situations

BackgroundThe aim of the study was to present the results of a novel abdominal stent graft for patients with Abdominal aortic aneurysm (AAA), through 2 years follow-up. MethodsA single-center retrospective review with prospectively collected data was performed to assess the safety and effectiveness of the Minos Abdominal stent device for treating abdominal aortic aneurysms. We estimated technical success rate, in-hospital and 30-day mortality, and mortality at the end of follow-up as well as complication and reintervention rate in our study cohort. Follow-up imaging assessments consisted of computed tomography angiography (CTA) at 1 and 6 months and yearly thereafter. ResultsA total of 52 patients (92% males; mean age, 74±6 years) were enrolled with Minos Abdominal stent device from July 2020 until September 2023. Thirty one (60%) patients were asymptomatic while 21 (40%) were symptomatic. The technical success of the endovascular aortic repair (EVAR) was 95% (49/52 patients). In 5% (3/52) of the cases, cannulation of the contralateral limb was unsuccessful and was converted to aorto-uni-iliac graft (AIU). Two (4%) aortic related death were recorded during the 30-day period. The major adverse event rate was 3.8%. The overall mean follow-up was 30±6 months; no aorta-related deaths or graft related complications were observed. Sac shrinkage (>5mm) has been observed in 70% of patients. ConclusionsMinos endoprosthesis seems to be safe, effective and durable for treating AAA either in elective or emergent situations.

The Possibility of Improving the Range and Quality of Air-to-Ground WebRTC-Based IoT Communication in Emergency Situations by Employing an External Transceiver.

The proliferation of new services, either interpersonal or machine-oriented, has generated new demands concerning the flexibility and efficiency of transmission. The ubiquity of multimedia communication in the current internet is seamlessly and successfully supported by the WebRTC concept. This paper reports on the study of the usage of a solution employing a proxy transmission unit for air-to-ground delivery of video streaming multiplexed with sensor data in the UAV-IoT system when using the WebRTC protocol stack. The comparative experiments were carried out for two cases employing the 802.11ac network with WebRTC: the first scenario (S1) without an external transceiver and the second scenario (S2) with an external transceiver working as a proxy of the ground receiver. The presented results compare the transmission conditions without (scenario S1) and with (scenario S2) the external transceiver in terms of the RSSI, the available data rate, and total throughput of transmission of multimedia data (video stream from the UAV camera and bursty data coming from employed sensors. The usefulness of the external transceiver used in a wide range of transmission conditions is clearly proven.

Node Deployment of WSN Based on Drones

In order to solve the problem of WSN node deployment being unable to achieve relatively orderly and efficient deployment in some specific scenarios, this study refers to the specific development of WSN coverage technology at home and abroad, and hopes to create a basic and universal coverage system based on existing technology, in order to face various emergency situations in reality.

Ответственность главы субъекта РФ при возникновении чрезвычайной ситуации: конституционно-правовой аспект

The work is devoted to the issues of constitutional and legal aspect of responsibility of the head of the subject of the Russian Federation in case of emergencies of the regional level of response. The author has established that in case of dishonest fulfilment of the laws of the Russian Federation in the field of protection of population and territories from emergency situations the head of the subject of the Russian Federation bears not only disciplinary, administrative, civil, criminal, but also constitutional-legal responsibility. The author considers such measures of constitutional-legal responsibility which can be applied to the head of the subject of the Russian Federation at dishonest fulfilment of duties in the field of protection of the population and territories from emergency situations, as a reprimand of the President of the Russian Federation, a warning of the President of the Russian Federation and early dismissal by the President of the Russian Federation.

Рискогенные факторы избирательного процесса в современной России

Relevance of the research topic is based on the change of the focus of development of electoral law and procedure towards creation of reliable guarantees of security of electoral rights of citizens in the conditions of the special military operation, informational and ideological war and sanctions pressure of the West on the Russian Federation. The article reviews risk-posing factors of the electoral procedure, suggests ways to minimize them, to create a legal mechanism to regulate them and to manage such risks with the help of cutting-edge scientific research results. Realities of the elections of the President of the Russian Federation in March 2024 gave birth to new legal regimes for holding thereof: regime of high alert to a situation of emergency and even the state of martial law. However, the applicable laws fail to transform in due time to keep pace with the rapidly changing circumstances, so legal gaps are filled in by election commissions. Arising problems in the border territories were solved quickly thanks in large part to the Central Election Commission of the Russian Federation, election commissions of the constituent entities of the Russian Federation, supreme officials of the constituent entities of the Russian Federation.

Robot-assisted minimally invasive esophagectomy for esophageal cancer in the left lateral decubitus position.

The use of robot-assisted minimally invasive esophagectomy (RAMIE) in the prone position for esophageal cancer has been currently increasing worldwide. In future, as surgical-assisted robots become more widespread, it is estimated that only two methods of transthoracic approach will remain: RAMIE and open thoracotomy for thoracic esophageal cancer. RAMIE in the left lateral decubitus position (RAMIE-LLDP) has the same field of view as open thoracotomy, is safe in emergency situations, and provides education on open thoracotomy. Between September 2020 and April 2024, RAMIE-LLDP was performed in 64 consecutive patients with esophageal cancer. RAMIE-LLDP was performed with the operating table rotated and tilted 45° to the ventral side under artificial pneumothorax. The hand-control setting of the surgical-assist robot system was reversed left to right when the Patient Cart was rolled from the same direction as the RAMIE in the prone position. The mean total surgery and console times during the thoracic procedure were 254-min overall and 225min in the last 24 cases and 195-min overall and 178-min in the last 24 cases, respectively. The mean amount of blood loss was 203.4g overall and 28.3g in the last 24 cases. Postoperative recurrent laryngeal nerve palsy with Clavien-Dindo classification (CD) was ≥ 2 in six patients (9.4%). Postoperative pneumonia with CD ≥ 2 was observed in 11 patients (17.2%). Conversion to open thoracotomy was observed in three patients (4.7%). In all three patients, an immediate conversion to thoracotomy without patients' position change was actually possible and no serious complications were noted. No mortality occurred within 30days postoperatively. RAMIE-LLDP which facilitates emergency thoracotomy has perioperative results comparable to those of conventional thoracoscopic esophagectomy and is educational for open surgery. RAMIE-LLDP is the safest and most optimal surgery for esophageal cancer.

Assessing the psychobiological demands of high-fidelity training in pre-hospital emergency medicine

BackgroundIndividuals who provide critical emergency care mount rapid psychobiological responses when faced with an incident. These responses are adaptive and ensure resources at time of demand; however, frequent activation with minimal opportunity for recovery can have negative consequences for health and wellbeing. Monitoring individuals in real emergency situations would provide an understanding of their stress responses during the provision of critical care; however, this presents logistical challenges. An alternative is to assess individuals during high-fidelity training scenarios. This is the first comprehensive assessment of psychobiological responding during continuous high-fidelity training in pre-hospital emergency medicine.MethodsA sample of doctors and paramedics (N = 27) participated during 10 days of training and a weekend of no activities. Training involved the acquisition of human factors, non-technical and surgical skills, and their application in complex high-fidelity scenarios including road-traffic accidents, firearms incidents, and swift water rescue operations. On each day participants reported levels of state, cognitive, and somatic anxiety, and self-confidence following waking and before sleep, and their anticipated (at wake) and experienced (before sleep) demands of the day. Saliva samples were obtained each day for assessment of diurnal cortisol indices and the Cortisol Awakening Response (CAR). Garmin smartwatches were worn throughout for the collection of heart rate and HRV-derived stress.ResultsThere were significant (p < 0.001) differences across days for state, cognitive, and somatic anxiety; self-confidence; anticipated and experienced demands; aggregated measures of heart rate and HRV-derived stress; levels of cortisol at waking (p = 0.002) and for the CAR (p < 0.001). Measures of psychobiological responding during training were distinct from the weekend and the highest levels of psychobiological responding occurred on days characterised by greater anticipated and experienced demands.DiscussionThis high-fidelity training is typical of the day-to-day requirements of emergency services and these observations are representative of functioning during real-life critical care emergencies. Increased responding during times of demand is adaptive; however, frequent and sustained responding increases allostatic load and is a contributor to burnout. As burnout is a significant concern in emergency medicine, this study identifies patterns of responding and recovery that may impact upon longer-term health and wellbeing.

Early childhood education contingencies for sustaining learning during school closures: Lessons from preschool remote education home visits in Indonesia during the COVID-19 pandemic

Maintaining kindergarten education amid emergency situations is difficult. The COVID-19 pandemic highlighted the difficulties faced by early childhood education institutions in ensuring that children continue education despite school closures and prolonged social isolation. The transition from in-classroom learning to remote learning, which was mostly online for older age groups, was especially complicated for younger pupils due to their nature and limited family resources. In contrast, numerous kindergartens in Indonesia initiated home visit programs that enabled children to learn face-to-face with their teachers and peers during the school closure periods. The purpose of this study was to examine how the home visit program for early childhood education was implemented and how teachers and parents viewed this emergency alternative to online learning. A qualitative case study was employed as a method of inquiry. Nine parents and four teachers from a single kindergarten in South Tangerang, a suburb of Jakarta, participated in this study. The data revealed the home visit program’s implementation involved the following measures: dividing children into small groups, a teacher visiting each group’s assigned home once or twice per week for 45–90 min, enforcing health measures, and giving daily activities for students to complete with their parents. Teachers stated that the home visit program was helpful but had significant faults. Among the benefits were the following: It helped children comprehend learning materials, piqued their interest, and served as a possible alternative due to a family’s lack of resources such as electricity, internet connectivity and quota, educators’ competency in implementing online learning, and parents limited or unavailable devices. Meanwhile, some disadvantages of home visits included the following: Parents felt obligated to entertain their children’s teachers and peers, some students were unable to study due to distance, additional time and energy was spent on media preparation and learning activities, and the risk of exposure to COVID-19 was increased. In the future, unexpected health hazards or other situations may occur. These findings indicate the need for early childhood education institutions to be more prepared, develop a strategy and adjust their instructional approaches to respond rapidly to changing circumstances when required.

Fano mode based plasmonic sensor for temperature and chemical pollutant detection

Plasmonic sensors provide great sensitivity to minute quantities of analytes and provide excellent detection. In present context of environmental monitoring, plasmonic sensor can prove to be an excellent choice in chemical pollutant and temperature detection. Plasmonic sensors can provide immediate results, allowing for monitoring temperature changes in ecosystems or climate studies and quick decision-making in emergency situations related chemical pollution incidents. They are compact and can be integrated into portable devices for on-site analysis. In this investigation, a plasmonic refractive index sensor based on key ring shaped resonator consisting of a microring resonator and two rectangular resonator is proposed. Finite-Difference Time-Domain (FDTD) method is used to study the transmittance characteristics of the sensor. The device exhibits quadruple Fano resonance with highest sensitivity of 2521.7 nm/RIU. Other performance parameters such as figure of Merit (FOM), Quality (Q) factor and Detection limit (DL) are also been calculated, with values 98.8 RIU−1, 99.6 and 0.01 respectively. Additionally, the effects of different geometrical configurations is also studied, providing insights into the design principles in context of potential fabrication complexities. Further, the simulated Fano characteristic is validated against the theoretical value. The application of the proposed sensor is investigated for different types of analyte such as chemical pollutants and temperature sensing.

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.