Electronic Surveillance System Research Articles

Predictors of perinatal cannabis use in colorado and the association with depression during pregnancy.

To evaluate the prevalence and predictors of cannabis use and reasons for use during and/or after pregnancy among Colorado birthing individuals. To determine the independent association of self-reported depression during pregnancy and cannabis used. Data from Health eMoms, a statewide perinatal longitudinal electronic surveillance system were analyzed. Perinatal cannabis use was defined as any use during and/or after pregnancy. Bivariate associations of birthing individual and infant characteristics with use were estimated using chi-square tests. Multivariable logistic regression was used to assess the independent relationship between depression and reported cannabis use versus no reported cannabis use. A weighted sample of 117,812 birthing individuals was analyzed from survey responses between 2018-2021. Among the 15,585 (13.3%) who reported perinatal cannabis use, 35.5% reported use during pregnancy and 87.3% reported post-partum use. Individuals with depression during pregnancy had 2.2 times higher adjusted odds (95% CI: 1.5. 3.3) of any perinatal cannabis use compared to those without depression. Among those who had any perinatal cannabis use, reported use for medical reasons was 92% during pregnancy, while 43% cited this as the reason for use 12-14months post-partum. Self-reported cannabis use during the perinatal period in a state with legalized recreational use was over 1 in 10. Use varied significantly by demographics and social factors with inconsistent perinatal guidance provided by healthcare professionals. Depression during pregnancy was significantly associated with use, illustrating the need for comprehensive mental health screening and therapeutic evidence-based interventions to support these individuals.

Socio-Economic Impacts Resulting From The Integration Of Artificial Intelligence Into Electronic Surveillance Systems In Traffic

In the last decade, electronic surveillance systems have been actively employed for monitoring traffic rule violations with the aim of enhancing traffic regulation. The utilization of these systems has resulted in increased compliance with traffic regulations, consequently leading to a reduction in losses attributed to traffic accidents. The impact created by these systems is expected to be further amplified through the incorporation of artificial intelligence (AI) support. Within the scope of this study, a detailed analysis of the socio-economic impact of AI-assisted Electronic Traffic Monitoring Systems has been conducted, focusing on economic, mobility, health, environmental, and quality of life aspects.

Evaluating the Role of Electronic Security Surveillance in Enhancing Safety in Secondary Schools: A Case Study of Trans Nzoia County, Kenya

Secondary school safety is critical to sustaining comparable academic performance outcomes. However, there are so many threats that affect the safety of schools that make up this necessity throughout the world. Security challenges in secondary schools in Kenya includes fires, theft and radicalization have been witnessed in school. Nevertheless, the application of electronic security surveillance systems still remains rather low. They work under very high risks and many schools in Trans Nzoia County are especially vulnerable leaving the school community at risk. This research aimed at evaluating the extent to which these systems enhance safety. Based on Situational Crime Prevention Theory and Contingency Theory, the study adopted descriptive survey research design and targeted 14 second schools with previous security threats and deployed with surveillance systems. Participants were 14 principals, 14 boarding teachers, 14 security personnel, 70 students- 10 students from each of the 7 schools, County Director of Education, and the Chief Fire Officer. The sample size for the study was 128 respondents. Data was collected using questionnaires, interview schedules and Focus Group Discussions. The data was analysed through using Social Package for Social Sciences version 25. Regarding electronic surveillance system improvement of school security, 80.8 percent of respondents supported its effectiveness. When national ICT and school safety policies had been included, it was found that the improvement of these systems for the safety of schools has proved 40.9% different (R² = 0.409, F (2, 75) = 26.003, p = 0.000). Of all the forms of surveillance, the study noted that CCTV cameras were the most widely used in secondary schools. That being said, the efficiency of their use in achieving safety objectives was somewhat hampered by operational obstacles. The study therefore suggests that while emphasizing on the use of additional technologies like fire alarms, burglar alarms, Metal detectors and Biometric systems, the school management boards in collaboration with Ministry of education and ICT should devise way of extending the use of such gadgets. Secondly, to guarantee full coverage of the school premises, it is necessary to step up investment in electronic security systems, and improve the support of personnel pertaining to the detection of threats.

Enhancing Library Security Through Electronic Surveillance Systems: The Moderating Influence of Firm Size and Technological Innovation

Library materials have long been vulnerable to misuse, a problem that has persisted over many years. This paper examines how the adoption of electronic surveillance systems (ESS) is influenced by firm size and technological innovation in combating library abuses. Utilizing a quantitative approach, this research employed an online questionnaire to collect data from staff members across four university libraries in Ghana. The findings from multiple linear regression analysis revealed that the implementation of ESS significantly reduces instances of library abuses (p=.000), underscoring its efficacy in addressing this issue. Moreover, the study identifies both the size of the library and technological innovation as significant factors, indicating that their influence on mitigating library abuses varies depending on these variables.

Effects of Electronic Surveillance System on Security and Theft in Four Central University Libraries in U.P.

The study focused on impact of electronic surveillance systems on book theft and mutilation in Central Universities ,U.P. In this study, electronic surveillance is the use of modern technological security devices to detect book security and theft in Central Universities ,U.P. Descriptive survey design was used as design of the study. The population of the study was library users drawn from the Libraries in four Central Universities in U.P. Sample size for this study was made up of entire population. Research instruments was Questionnaire and interviewed guide developed by researchers. It was recommended among others that there should be policy on theft and vandalism, detective bar-code machines should be provided; installation and maintenance of electronic surveillance system, provision of adequate resources and photocopying services to check book security and theft.

Tianeptine-involved emergency department visits, fatal overdoses, and substance seizures in Tennessee, 2021–2023

BackgroundTianeptine is an antidepressant that acts as an agonist to the mu-opioid receptor and enhances serotonin reuptake. Tianeptine has been legally sold as an antidepressant in some countries but is not approved for any medical use by the U.S. Food and Drug Administration (FDA). Tianeptine is not a federally controlled substance, but became a schedule II substance in Tennessee on July 1, 2022. This publication aims to describe the prevalence of tianeptine-involved emergency department visits, fatal overdoses, and substance seizures in Tennessee from 2021 to 2023. MethodsWe conducted a study to examine the prevalence of tianeptine-involved emergency department visits and fatal overdoses in Tennessee using data for 2021 to 2023 from the Tennessee Electronic Surveillance System for the Early Notification of Community based Epidemics (ESSENCE) database and the Tennessee State Unintentional Drug Overdose Reporting System (SUDORS). Substance seizure data from National Forensic Laboratory Information System (NFLIS) are included. ResultsOur search of ESSENCE, SUDORS, and NFLIS yielded 50 tianeptine-involved emergency department visits, 6 tianeptine-involved fatal overdoses, and 19 tianeptine substance seizures respectively. Demographic information is provided for the emergency department visits and tianeptine-involved fatal overdoses. Discharge diagnosis and clinical symptomology information are provided for the emergency department visits. ConclusionEmergency department visits and fatal overdoses involving tianeptine have occurred in Tennessee despite tianeptine becoming a schedule II substance. Among emergency department visits, tianeptine use is most commonly associated with gastrointestinal and psychological symptoms. All fatal cases where tianeptine was detected involved other substances, suggesting tianeptine plays a role in polysubstance use.

Numerical assessment of induced electric fields in a worker’s hand with commonly used metallic implants under exposure to low frequency magnetic fields

The European Union’s Workers’ Directive 2013/35/EU on the minimum health and safety requirements regarding the exposure of workers to electromagnetic fields specifies action levels (ALs) for external electric and magnetic fields, which should protect against induced tissue-internal electric field strength E i above the exposure limit values, the latter being defined in order to prevent tissue stimulation at low frequencies. However, although 2013/35/EU explicitly calls for the protection of ‘workers at particular risk’ (including workers with metallic implants), the AL specified in the Directive have been derived under the assumption that there are no metallic parts present inside the body. Therefore, in the present work, we analysed the situation of a worker’s hand and forearm bearing metallic implants (Herbert screw and volar radius plate) used for osteosynthesis after the most common bone fractures of the hand/forearm, exposed to low frequency magnetic fields. The uniform exposure of the whole hand and forearm as well as the exposure to a specific and widely used device, a deactivator for single-use labels of acousto-magnetic electronic article surveillance systems, were considered based on numerical computations using a high-resolution anatomical hand and forearm model. The results obtained indicated that the maximum induced electric field strength averaged in a volume of 2 mm × 2 mm × 2 mm cube was higher in the presence of the metallic implants by a factor of up to 4.2 for bone tissue and 2.3 for soft tissue compared with the case without an implant. Hence, it is obvious that the local induced electric field strengths may be substantially increased by the implants. The extent of this increase, however, is highly dependent on the implant’s position inside the body, the implant’s geometry, and the field distribution and orientation with respect to the anatomical structure and the implant.

LPI radar sequence design against cyclostationary analysis

In this paper, we present a novel unimodular sequence design algorithm based on the coordinate descent (CD) algorithm, aimed at countering electronic surveillance (ES) systems based on cyclostationary analysis. Our algorithm not only provides resistance against cyclostationary analysis (CSA) but also maintains low integrated sidelobe (ISL) characteristics. Initially, we derive the expression of the cyclostationary feature (CSF) detector and simplify it into an iterative quadratic form. Additionally, we derive a quadratic form to ensure the similarity of the autocorrelation sidelobes. To balance the minimization of the detection probability and the ISL values, we introduce a Pareto scalar that transforms the multi-objective optimization problem into a convex combination of objective functions. This approach allows us to find an optimal trade-off between the two objectives. Finally, we propose a monotonic algorithm based on the CD algorithm to counter CSA analysis. This algorithm efficiently solves the optimization problem mentioned earlier. Numerical experiments are conducted to validate the correctness and effectiveness of our proposed algorithm.

Electronic patient-reported outcome-based surveillance system to evaluate safety and efficacy of preoperative immunochemotherapy with or without short-term chemoradiation in patients with esophageal squamous cell carcinoma (ePRO-PICCRT): protocol for a prospective, single-arm, phase II study.

Radiation-associated adverse events (ADEs) in patients with esophageal squamous cell carcinoma (ESCC) remain a problem. Recent research has focused on reducing radiation-associated ADEs while maintaining efficacy, particularly through the combination of immune checkpoint inhibitors (ICIs) with chemotherapy. Patient-reported outcomes (PROs) have also emerged as reliable measures for monitoring treatment effectiveness and quality of life (QoL). This trial aims to investigate the feasibility of using patient-reported dysphagia relief to assess pathological response following neoadjuvant immunochemotherapy, as well as the safety and efficacy of neoadjuvant immunochemotherapy combined with short-course radiotherapy for patients with locally advanced ESCC. This study is designed as a prospective, single-arm, phase II study. Eligible ESCC patients will be invited to participate in this study. All participants will receive paclitaxel (albumin-bound) (260 mg/m2, day 1), carboplatin [area under the curve (AUC) 5; 5 mg/mL/min, day 1] or cisplatin [60 mg/m2, intravenous drip (ivdrip), day 1], and tislelizumab (200 mg, day 1) in the first treatment cycle. Early remission of dysphagia is defined as relief greater than 70% according to the dysphagia symptom score in the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire esophagus-specific questionnaire (EORTC OES-18). The early remission group (Group A) will continue with the same regimen for two treatment cycles. The latent remission group will continue with one treatment cycle followed by neoadjuvant immunochemotherapy combined with short-course radiotherapy (radiotherapy 30 Gy/10 F). The primary objective is the pathological complete response (pCR) rate. Research data collection, storage, and management will be conducted in a web-based Real-World-Data Management Platform (RWDMP). Longitudinal data will be conducted by a linear mixed model with treatment effects, baseline factors influencing the endpoint as fixed effects, and the center as a random effect. This study will provide evidence for using patient-reported dysphagia relief to evaluate pathological response after neoadjuvant immunochemotherapy in early remission (Group A) and to evaluate the safety and efficacy of combining immunochemotherapy with short-course radiotherapy in latent remission (Group B) among patients with ESCC. Limitations include the single-arm study design, small sample size, and the need for further exploration of the specific mechanism and mediator of early dysphagia remission's effect on immunochemotherapy effectiveness. This study is registered at Clinicaltrials.gov (NCT05596890).

The Role of the European Reference Network for Rare Bone Diseases (ERN BOND) and European Registries for Rare Bone and Mineral Conditions (EuRR-Bone) in the Governance of the Management of Rare Bone and Mineral Diseases

Rare diseases (RDs) bear a significant challenge to individuals, healthcare systems, and societies. The European reference network on Rare BONe diseases (ERN BOND) is committed to improving multidisciplinary, patient-centred care for individuals with rare bone and mineral diseases (RBMDs). Its affiliated project, the European registries for rare bone and mineral conditions (EuRR-Bone) collects data using two different platforms, an electronic surveillance system (e-REC) that captures the occurrence of RBMDs and the Core Registry, a platform with the infrastructure for collecting Core data fields and longitudinal generic and condition-specific information. With emerging registries and the overlap with other ERNs, it is key to maintain the capability of the platforms to adapt to the needs of the network and the community whilst adhering to quality and FAIR (findable, accessible, interoperable, and reusable) principles. This binomial ensures long-term sustainability and potential advances in the care pathway of RBMDs whilst promoting good practice standards within Europe and beyond.

Electronic oral health surveillance system for Egyptian preschoolers using District Health Information System (DHIS2): design description and time motion study

BackgroundEarly childhood caries (ECC) is a major global health issue affecting millions of children. Mitigating this problem requires up-to-date information from reliable surveillance systems. This enables evidence-based decision-making to devise oral health policies. The World Health Organization (WHO) advocates the adoption of mobile technologies in oral disease surveillance because of their efficiency and ease of application. The study describes developing an electronic, oral health surveillance system (EOHSS) for preschoolers in Egypt, using the District Health Information System (DHIS2) open-source platform along with its Android App, and assesses its feasibility in data acquisition.MethodsThe DHIS2 Server was configured for the DHIS2 Tracker Android Capture App to allow individual-level data entry. The EOHSS indicators were selected in line with the WHO Action Plan 2030. Two modalities for the EOHSS were developed based on clinical data capture: face-to-face and tele/asynchronous. Eight dentists in the pilot team collected 214 events using modality-specific electronic devices. The pilot’s team's feedback was obtained regarding the EOHSS's feasibility in collecting data, and a time-motion study was conducted to assess workflow over two weeks. Independent t-test and Statistical Process Control techniques were used for data analysis.ResultsThe pilot team reported positive feedback on the structure of the EOHSS. Workflow adaptations were made to prioritize surveillance tasks by collecting data from caregivers before acquiring clinical data from children to improve work efficiency. A shorter data capture time was required during face-to-face modality (4.2 ± 0.7 min) compared to telemodality (5.1 ± 0.9 min), p < 0.001). The acquisition of clinical data accounted for 16.9% and 21.1% of the time needed for both modalities, respectively. The time required by the face-to-face modality showed random variation, and the tele-modality tasks showed a reduced time trend to perform tasks.ConclusionsThe DHIS2 provides a feasible solution for developing electronic, oral health surveillance systems. The one-minute difference in data capture time in telemodality compared to face-to-face indicates that despite being slightly more time-consuming, telemodality still shows promise for remote oral health assessments that is particularly valuable in areas with limited access to dental professionals, potentially expanding the reach of oral health screening programs.

Electronic Monitoring Is Not the Only Problem Here

Over the past 25 years, few alternative sanctions have received as much attention as electronically monitored house arrest. In the view of relatively dynamic development of electronic surveillance technologies and related ethical and legal issues at stake, this interest continues to this day. In the Czech Republic, electronically monitored house arrest was introduced in 2010. Somewhat oddly, the electronic surveillance system had not been implemented at the time. Yet, legislators and sanctions policy makers placed high hopes in this form of punishment. In particular, it was expected to significantly help combat the relentless hypertrophy of the prison population. But the expectations of sanction policy makers were not met due to the reluctance of the courts to impose house arrest. This had remained unchanged over the years, and opinions had begun to emerge that the state's failure to introduce electronic monitoring was primarily to blame. In 2019, electronic monitoring was eventually implemented, but the number of sentences imposed still did not increase. If the legislature's sanctions policy is not translated into practice, its aims cannot be achieved. For this to happen, it is essential that house arrest becomes more prevalent in the structure of sentences imposed. Increased application rates will not happen spontaneously; certain steps need to be taken to address the reasons for the current state of affairs and to mitigate factors that negatively affect application practice. For this purpose, such causes and negative factors must first be identified. This paper therefore examines the importance of electronic monitoring in terms of the application practice of house arrest in the Czech Republic, and the main reasons for not imposing house arrest. Building on these findings, it offers suggestions that would contribute to more frequent imposition of house arrest in appropriate cases.

Understanding Epidemiological Trends in Geriatric Burn Injuries: A National Multicenter Analysis from NEISS 2004-2022.

Burn injuries pose a significant source of patient morbidity/mortality and reconstructive challenges for burn surgeons, especially in vulnerable populations such as geriatric patients. Our study aims to provide new insights into burn epidemiology by analyzing the largest national, multicenter sample of geriatric patients to date. Utilizing the National Electronic Injury and Surveillance System (NEISS) database (2004-2022), individuals with a "Burn" diagnosis were extracted and divided into two comparison age groups of 18-64 and 65+. Variables including sex, race, affected body part, incident location, burn etiology, and clinical outcomes were assessed between the two groups utilizing two proportion z-tests. 60,581 adult patients who sustained burns were identified from the NEISS database with 6,630 of those patients categorized as geriatric (65+). Geriatric patients had a significantly greater frequency of scald burns (36.9% vs. 35.4%; p<0.01), and third degree/full-thickness burns (10.4% vs 5.5%, p<0.01) relative to non-geriatric adult patients with most of these burns occurring at home (75.9% vs 67.4%; p<0.01). The top five burn sites for geriatric patients were the hand, face, foot, lower arm, and lower leg and the top five burn injury sources were hot water, cookware, oven/ranges, home fires, and gasoline. Geriatric patients had over two times greater risk of hospital admission (OR: 2.32, 95% CI: 2.17-2.49, p<0.01) and over five times greater risk of ED mortality (OR: 6.22, 95% CI: 4.00-9.66, p<0.01) after incurring burn injuries. These results highlight the need for stronger awareness of preventative measures for geriatric burn injuries.

Nature and Extent of Electronic Security Surveillance Systems in Secondary School Safety in Kenya

Secondary safety is paramount to the sustainability of school performance; however, threats leveled against schools globally are interfering with safety. Schools in Kenya have experienced a horde of threats such as fire and theft coupled with radicalization. There is hardly the use of electronic security surveillance systems to mitigate threats. In Trans Nzoia County, secondary schools have been a recipient of security threats threatening the safety of the school community. Against this backdrop, this study assessed the influence of electronic security surveillance systems on the sustainability of secondary school safety in Trans Nzoia County, Kenya. The specific objective of the study was to establish the nature and extent of electronic security surveillance systems in secondary schools in Kenya. The descriptive survey research design was used to study electronic security surveillance systems in secondary school safety in Trans Nzoia County. The study population was composed of 14 secondary schools that had previous security threats and had installed electronic security surveillance systems (unit of analysis). The sampling strategy in this study was simple random and purposive sampling. Quantitative data was analyzed descriptively and inferentially with the aid of SPSS version 25. The data was analyzed at a 0.05 probability level and presented in tables and figures in percentages and frequencies. Results: CCTV was installed in all the secondary schools surveyed sampled. It was agreeable by the respondents (76.9%) that the nature and extent of electronic security surveillance systems in secondary schools promoted safety in the school community. The interaction between the electronic security surveillance systems installed in schools and the implementation of national ICT policy and school safety policy had a 29.9% impact on promoting safety in secondary schools (R2 = 0.299, (F (2, 75) = 15.966, p = 0.000). About 80.8% of the respondents agreed that electronic security surveillance systems effectively promote safety in secondary schools.

A Framework for Developing and Assessing Custom Case Definitions: A Demonstration Applied to Opioid Overdose in Maryland.

Public health epidemiologists monitor data sources for disease outbreaks and other events of public health concern, but manual review of records to identify cases of interest is slow and labor-intensive and may not reflect evolving data practices. To automatically identify cases from electronic data sources, epidemiologists must use "case definitions" or formal logic that captures the criteria used to identify a record as a case of interest. To establish a methodology for development and evaluation of case definitions. A logical evaluation framework to approach case definitions will allow jurisdictions the flexibility to implement a case definition tailored to their goals and available data. Case definition development is explained as a process with multiple logical components combining free-text and categorical data fields. The process is illustrated with the development of a case definition to identify emergency medical services (EMS) call records related to opioid overdoses in Maryland. The Maryland Department of Health (MDH) installation of the Electronic Surveillance System for Early Notification of Community-Based Epidemics (ESSENCE), which began capturing EMS call records in ESSENCE in 2019 to improve statewide coverage of all-hazards health issues. We describe a case definition evaluation framework and demonstrate its application through development of an opioid overdose case definition to be used in MDH ESSENCE. We show the iterative process of development, from defining how a case can be identified conceptually to examining each component of the conceptual definition and then exploring how to capture that component using available data. We present a framework for developing and qualitatively assessing case definitions and demonstrate an application of the framework to identifying opioid overdose incidents from MDH EMS data. We discuss guidelines to support jurisdictions in applying this framework to their own data and public health challenges to improve local surveillance capability.

LPI Sequences Optimization Method against Summation Detector Based on FFT Filter Bank

Waveform design is a crucial factor in electronic surveillance (ES) systems. In this paper, we introduce an algorithm that designs a low probability of intercept (LPI) radar waveform. Our approach directly minimizes the detection probability of summation detectors based on FFT filter banks. The algorithm is derived from the general quadratic optimization framework, which inherits the monotonic properties of such methods. To expedite overall convergence, we have integrated acceleration schemes based on the squared iterative method (SQUAREM). Additionally, the proposed algorithm can be executed through fast Fourier transform (FFT) operations, enhancing computational efficiency. With some modifications, the algorithm can be adjusted to incorporate spectral constraints, increasing its flexibility. Numerical experiments indicate that our proposed algorithm outperforms existing ones in terms of both intercept properties and computational complexity.

Digitalizing disease surveillance: experience from Sierra Leone.

The Integrated Disease Surveillance and Response (IDSR) system was adopted by the Sierra Leone Ministry of Health (MOH) in 2008, which was based on paper-based tools for health data recording and reporting from health facilities to the national level. The Sierra Leone MoH introduced the implementation of electronic case-based disease surveillance reporting of immediately notifiable diseases. This study aimed to document and describe the experience of Sierra Leone in transforming her paper-based disease surveillance system into an electronic disease surveillance system. Retrospective mixed methods of qualitative and quantitative data were reviewed. Qualitative data was collected by reviewing surveillance technical reports, epidemiological bulletins, COVID-19, IDSR technical guidelines, Digital Health strategy, and DHIS2 documentation. Content and thematic data analysis were performed for the qualitative data, while Microsoft Excel and DHIS2 platform were used for the quantitative data analysis to document the experience of Sierra Leone in digitalizing its disease surveillance system. In early 2017, a web-based electronic Case-Based Disease Surveillance (eCBDS) for real-time reporting of immediately notifiable diseases and health threats was piloted using the District Health Information System 2 (DHIS2) software. The eCBDS, integrates case profile, laboratory, and final outcome data. All captured data and information are immediately accessible to users with the required credentials. The system can be accessed via a browser or an Android DHIS2 application. By 2021, there was a significant increase in the proportion of immediately notifiable cases reported through the facility-level electronic platform, and more than 80% of the cases reported through the weekly surveillance platform had case-based data in eCBDS. Case-based data from the platform is analyzed and disseminated to stakeholders for public health decision-making. Several outbreaks of Lassa fever, Measles, vaccine-derived Polio, and Anthrax have been tracked in real-time through the eCBDS.

Syndromic Surveillance of Emergency Department Visits Related to Unintentional Drowning, United States, 2019-2022.

To improve national drowning surveillance efforts, we developed and evaluated a definition for unintentional drowning for use in the National Syndromic Surveillance Program's ESSENCE platform (Electronic Surveillance System for the Early Notification of Community-Based Epidemics) and described drowning-related emergency department (ED) visits from 2019 through 2022 using the new definition. We adapted an unintentional drowning definition from a previous version, which included all drowning-related ED visits regardless of intent (including drowning related to assault and suicide, as well as unintentional drowning). We reviewed a random sample of 1000 visits captured by the new definition of unintentional drowning and categorized visits as likely, possibly, and unlikely to be related to unintentional drowning. We compared monthly drowning-related ED visits from 2020, 2021, and 2022 with monthly drowning ED visits from 2019, overall and by sex and age group. A total of 35 431 ED visits related to unintentional drowning (10.71 per 100 000 ED visits) occurred from 2019 through 2022. Most visits (86%) captured by the new definition and manually reviewed were likely related to unintentional drowning. Rates were highest among males (14.04 per 100 000 ED visits) and children aged <1 to 4 years (65.61 per 100 000 ED visits). The number of drowning-related ED visits was higher in May and August 2020, May and June 2021, and May 2022 as compared with the same months in 2019 among people aged 18 to 44 years. The definition for unintentional drowning is available in the National Syndromic Surveillance Program's ESSENCE platform for state and local jurisdictions to use to monitor unintentional drowning-related ED visits in near-real time to inform prevention strategies.

Enhancing functionality and scaling up of the electronic Integrated Diseases Surveillance and Response system in Uganda, 2020-2022: Description of the journey, challenges, and lessons learned (Preprint)

Enhancing functionality and scaling up of the electronic Integrated Diseases Surveillance and Response system in Uganda, 2020-2022: Description of the journey, challenges, and lessons learned (Preprint)

A concise high‐efficiency broadband parallel‐circuit Class‐E power amplifier

SummaryAn analysis of a single‐ended high‐efficiency broadband parallel‐circuit (PC) Class‐E power amplifier (PA) with a single reactance compensation technique (RCT) and low‐pass (LP) Chebyshev impedance transformer is first presented under low supply voltage. Analysis of the gate and drain voltage allows to determine the required optimum voltage values for the expected PA design objectives. Derivation and design procedure of the broadband matching network (MN) is provided, which can effectively filter out higher order harmonics and reduce circuit complexity. In addition, the load adaptability for this PA is studied, achieving higher than 67.87% drain efficiency (DE) in the case of load mismatch. A PC Class‐E PA based on NMOS transistor is designed and implemented to validate the analysis over a frequency band of 7–9.4 MHz. Experimental results show that the PA delivers 36.48–38.83 dBm output power with a DE of 84.91% to 86.91%, as well as achieves 83.98% to 86.28% power‐added efficiency (PAE), 19.48–21.83 dB gain with a low supply voltage of 12 V. It is also demonstrated that the experimental results exhibit good agreement with the simulation results, which prototype the radio frequency identification transmitter with broadband high‐efficiency and system compactness. To the author's knowledge, this study represents the first approach to design broadband PC Class‐E PA under low supply voltage for Internet of Things (IoT) applications at HF frequency band, such as electronic article surveillance (EAS) system.