Initial Wave Research Articles

Monitoring Open Science as transformative change: Towards a systemic framework.

Following a flurry of policies for Open Science (OS), there is now a wave of initiatives to monitor its adoption. However, the great diversity of understandings and activities related to Open Science makes monitoring very challenging. There is a danger that by focusing on what can be readily observed (e.g. publications) many other OS activities are overlooked (e.g. participation), with a potential narrowing of OS scope, streetlight effects, and deviation from the values of OS. Since Open Science can be understood as a systemic transformation of the research system, we have borrowed concepts from Transformative Innovation Policies frameworks which aim at evaluating socio-technical transitions. In accordance with this view of OS as a systemic transformation, we propose that the new monitoring efforts should shift towards: (i) systemic perspectives which considers the various actions related to OS, including policies and outputs (e.g. datasets) but also processes (e.g. participatory events), outcomes (e.g. citizen interest in science) and expected impacts (e.g. better scientific contributions to addressing societal problems); (ii) implementation of monitoring as reflexive learning (rather than accountability or benchmarking); (iii) mapping the directionality of the activities and the values associated with the choices in directions. In summary, a monitoring framework for OS requires a profound change in conventional monitoring practices. The scope should broaden from current focus on outputs (such as publications) towards the processes of connection that make science 'open' (usage, co-creation and dialogue), as well as towards outcomes (changes in practices) and the longer-term impacts that reflect the values and normative commitments of OS.

Pediatric trauma volume fell during the initial COVID-19 wave but rebounded to new highs for the remainder of 2020.

Previous studies have shown a reduction in pediatric trauma volume during COVID-19, but many have looked at a limited number of facilities, analyzed a narrow timeframe, or both. The objective of this analysis was to assess the impact of COVID-19 on pediatric trauma volume for a statewide sample during 2020. Based on previous literature, researchers hypothesized a reduction in volume during the implementation of these policies. Retrospective cross-sectional analysis of five years (2016 - 2020) of Indiana's statewide trauma patient registry. Patients under age 15 were included. Those who were transfer patients or missing key data were excluded. In total, 10,926 patients were included in analysis. Baseline years (2016 - 2019) were compared to 2020 to estimate the impact of COVID-19 on pediatric trauma volume. Overall monthly volume of pediatric traumas were lower than baseline in March and April 2020 (though not significantly), but rebounded quickly and were above trend in the latter half of the year. Injury patterns differed in both mechanism and location from previous years. Gunshot wounds were more prevalent than previous years, while the volume of non-accidental traumas fell slightly. Injuries that occurred in private residences rose significantly, while fewer took place in schools. Results indicated an initial drop in injury volume consistent with previous findings, but these were offset by increased volume in the second half of 2020. The growth in gun violence is concerning and warrants additional research. Changes in behavior in response to the pandemic such as reduced participation in sports and use of playgrounds, reduced driving, and increased time at home help explain the changes observed in injury patterns. These findings emphasize the continued need for pediatric trauma care during the pandemic.

Ending 1990s Law and Development Ideas, Paradox of Path Dependence In Economic Planning Institutions Under Covid-19: SA’s Response

Abstract This paper argues that the COVID-19 pandemic can and should be understood as a form of creative destruction (Schumpeter’s gale), at a hyper level owing to its biological/medical dimension. Therefore, the critical response to such a hyper force is to rethink how institutions administer Public Policy in South Africa (Path Dependency), most importantly economic development planning institutions and Covid-19 responses, in the form of ‘The Economic Reconstruction and Recovery Plan’. It’s the contention of this paper that the reason why Covid-19 continues to impact the South African government’s economic planning ethos is anchored in its developmental orientation, particularly how constitutional legalism has impaired economic development planning. This could impart be due to the unaddressed influences of the initial waves of Law and Development post-1994. The South African experience with the initial waves of Law and Development were muted owing to the problematic nature of the 1994 transition which sought peace at all costs without necessary addressing substantive economic development reform considerations. Therefore, using the policy experiences of Covid-19 and Lee’s, General Theory of Law and Development, particularly the aspects of Development and State Capacity and Political Will, a revision of the South African Constitution will be called on, principally chapter’s 2 and 6 (Bill of Rights) and (Province).

Cumulative Exposure to Social Isolation and Longitudinal Changes in Life Satisfaction among Older Adults

This study examines the longitudinal association between cumulative exposure to social isolation and life satisfaction and whether this association differs by gender. Using seven waves of the Korean Longitudinal Study of Aging from 2006 to 2018 (3,543 adults aged 65 or older), fixed effects models were estimated. Cumulative social isolation was longitudinally associated with a decline in life satisfaction in older adults. Gender-specific analyses revealed that older women exposed to cumulative social isolation continued to experience a decline in life satisfaction up to the fourth and subsequent waves of exposure (relative to the initial wave in which there was no social isolation; b = −13.038, p < .001). In contrast, a decline in life satisfaction associated with cumulative social isolation was less pronounced among older men ( b = −6.200 for the fourth and subsequent waves of exposure, p < .05). Cumulative social isolation can be a persistent risk factor for life satisfaction in older adults, particularly older women. The study’s findings hold important implications for programs aimed at reducing social isolation and improving psychological well-being among older adults.

Effects of the First Wave of the COVID-19 Pandemic on the Work Readiness of Undergraduate Nursing Students in China: A Mixed-Methods Study.

Newly graduated nurses with strong work readiness are more likely to smoothly transition from school to clinical settings. However, even before the pandemic, this transition from nursing graduate to clinical nurse was often challenging. Therefore, this study aims to investigate the impact of the initial wave of COVID-19 on the work readiness of nursing students. A convergent mixed-method design was employed. For the quantitative study, an online cross-sectional survey was conducted among 500 graduating nursing students from four Chinese public higher education institutions. The questionnaire comprises three parts: socio-demographic information, the Chinese version of the Work Readiness Scale for Graduate Nurse, and a questionnaire on the socio-behavioral impact of COVID-19 on the general population. In the qualitative study, a semi-structured interview was carried out with 8 students who took part in the survey. The results from both parts were integrated using the "Pillar Integration Process". The study identified six key pillars: "Graduating nursing students possess fundamental knowledge, skills, and a preparedness in terms of attitude and psychology"; "Specialist knowledge and skills and soft skills for transition from nursing students to clinical nurses need to be strengthened"; "The most obvious impact of COVID-19 on nursing students are the adoption of preventive measures and the limitations in study and daily life due to household confinement"; "Growth in both personal and professional awareness"; "Negative effects of fear and anxiety"; and "Negative effects of household confinement". Graduating nursing students require additional preparation in specialized nursing knowledge, skills, and soft skills to make a successful transition from students to clinical nurses. It is important to acknowledge that the impact of COVID-19 on students' work readiness has both positive and negative aspects. Therefore, whether during the pandemic or post-graduation, these students will benefit from increased support from universities and hospitals.

Inequalities in healthcare use during the COVID-19 pandemic

The COVID-19 pandemic led to reductions in non-COVID related healthcare use, but little is known whether this burden is shared equally. This study investigates whether reductions in administered care disproportionately affected certain sociodemographic strata, in particular marginalised groups. Using detailed medical claims data from the Dutch universal health care system and rich full population registry data, we predict expected healthcare use based on pre-pandemic trends (2017 – Feb 2020) and compare these expectations with observed healthcare use in 2020 and 2021. Our findings reveal a 10% decline in the number of weekly treated patients in 2020 and a 3% decline in 2021 relative to prior years. These declines are unequally distributed and are more pronounced for individuals below the poverty line, females, older people, and individuals with a migrant background, particularly during the initial wave of COVID-19 hospitalisations and for middle and low urgency procedures. While reductions in non-COVID related healthcare decreased following the initial shock of the pandemic, inequalities persist throughout 2020 and 2021. Our results demonstrate that the pandemic has not only had an unequal toll in terms of the direct health burden of the pandemic, but has also had a differential impact on the use of non-COVID healthcare.

Resonant generation of propagating second-harmonic spin waves in nano-waveguides

Generation of second-harmonic waves is one of the universal nonlinear phenomena that have found numerous technical applications in many modern technologies, in particular, in photonics. This phenomenon also has great potential in the field of magnonics, which considers the use of spin waves in magnetic nanostructures to implement wave-based signal processing and computing. However, due to the strong frequency dependence of the phase velocity of spin waves, resonant phase-matched generation of second-harmonic spin waves has not yet been achieved in practice. Here, we show experimentally that such a process can be realized using a combination of different modes of nano-sized spin-wave waveguides based on low-damping magnetic insulators. We demonstrate that our approach enables efficient spatially-extended energy transfer between interacting waves, which can be controlled by the intensity of the initial wave and the static magnetic field.

Volume overload is a major characteristic in primary aldosteronism: a 3-year follow-up study.

We examined haemodynamics, focusing on volume balance and forward and backward wave amplitudes, before and after 2.8 years of targeted treatment of primary aldosteronism. Patients with essential hypertension and normotensive individuals were examined for comparison ( n = 40 in each group). Recordings were performed using radial artery pulse wave analysis and whole-body impedance cardiography. Unilateral aldosteronism was treated with adrenalectomy ( n = 20), bilateral aldosteronism with spironolactone-based medication ( n = 20), and essential hypertension with standard antihypertensive agents. Aortic SBP and DBP, forward and backward wave amplitudes, and systemic vascular resistance were equally elevated in primary aldosteronism and essential hypertension. All these haemodynamic variables were similarly reduced by the treatments. Primary aldosteronism presented with 1 litre (∼10%) extracellular water excess ( P < 0.001) versus the other groups, and this excess was normalized by treatment. Initial pulse wave velocity (PWV) was similarly increased in primary aldosteronism and essential hypertension, but final values remained higher in primary aldosteronism ( P < 0.001). In regression analyses, significant explanatory factors for treatment-induced forward wave amplitude reduction were decreased systemic vascular resistance ( β = 0.380) and reduced extracellular water volume ( β = 0.183). Explanatory factors for backward wave amplitude reduction were changes in forward wave amplitude ( β = 0.599), heart rate ( β = -0.427), and PWV ( β = 0.252). Compared with essential hypertension, the principal haemodynamic difference in primary aldosteronism was higher volume load. Volume excess elevated forward wave amplitude, which was subsequently reduced by targeted treatment of primary aldosteronism, along with normalization of volume load. We propose that incorporating extracellular water evaluation alongside routine diagnostics could enhance the identification and diagnosis of primary aldosteronism.

The Curriculum in IDD Healthcare (CIDDH) eLearn Course: Evidence of Continued Effectiveness Using the Streamlined Evaluation and Analysis Method (SEAM)

Medical professionals are rarely trained to treat the unique healthcare needs and health disparities of people with intellectual and developmental disabilities (IDD). The Curriculum in IDD Healthcare (CIDDH) eLearn course aims to redress gaps in the delivery of medical care to people with IDD. An initial comprehensive evaluation of CIDDH in-person training content had previously underscored its knowledge and skill transfer efficacy for Mississippi healthcare providers. Training content has recently become available to medical professionals nationwide through an online self-paced modality to address physicians’ IDD education needs. This study introduces and applies a new evaluation framework called SEAM (Streamlined Evaluation and Analysis Method) that offers a promising avenue for rendering a follow-up appraisal after rigorous evidence of program effectiveness has been previously established. SEAM reduces the data-reporting burden on trainees and maximizes instructor–trainee contact time by relying on an abbreviated post-only questionnaire focused on subjective trainee appraisals. It further reduces methodological and analytical complexity to enhance programmatic self-assessment and facilitate sound data interpretation when an external evaluator is unavailable. Ratings from a small sample of early-cohort trainees provide an important test of effectiveness during CIDDH’s transition to online learning for clinicians nationwide. Using SEAM, CIDDH achieved high ratings from this initial wave of trainees across various evaluative domains. The study concludes by highlighting several promising implications for CIDDH and SEAM.

Changing Roles and Responsibilities of Dietitians from Diverse Settings During the First Three Waves of the COVID-19 Pandemic in Nova Scotia.

Purpose: To explore the impact of the COVID-19 pandemic on Nova Scotian dietitian's roles, responsibilities, and professional development needs.Methods: We conducted a province-wide, online, exploratory survey with registered dietitians during the initial waves of the COVID-19 pandemic. Differences were explored with descriptive statistics by work sector (hospital/acute care; primary health/community or public health (PH); long-term care [LTC]; other [e.g.,private practice, retail]).Results: Dietitians (n = 122) reported being most frequently challenged by stress and anxiety, changing work expectations, and rapidly evolving safety protocols during the pandemic. Those working in PH, primary health, and LTC reported experiencing more work responsibilities, more change, and perceived less employer support than dietitians in other sectors. Despite the identified challenges, most participants (70.7%) felt their education and training were sufficient to take on these new work roles. Primary and PH dietitians, however, more frequently perceived their skill sets to be under-utilized than other sectors. Key learnings from practice identified as being important for dietetic education included qualities such as resilience, problem-solving, flexibility, and self-care.Conclusion: These findings will be of interest to health administrators, professional bodies, and academic institutions to inform strategies for strengthening dietetic practice, building resilience, and preparing for future emergencies.

Long-term impact of resilience and extraversion on psychological distress during the COVID-19 pandemic: a longitudinal investigation among individuals with and without mental health disorders.

Over the past years, the COVID-19 pandemic has caused significant disruptions in daily routines. Although the pandemic has affected almost everyone, it has been particularly challenging for people with pre-existing mental health conditions. Therefore, this study investigated the long-term impact of resilience and extraversion on psychological distress in individuals diagnosed with mental health disorders (MHD) compared to the general population. In addition, possible gender-specific differences were investigated. 123 patients with pre-existing MHD and 343 control subjects from Austria and Italy participated in three online surveys that had been conducted after the initial wave of the COVID-19 pandemic (t0), during the second lockdown in both countries (t1), and one year thereafter (t2). Participants completed standardized questionnaires on psychological distress (Brief-Symptom-Checklist), resilience (Resilience Scale), and extraversion (Big Five Inventory). A mediation model was employed to test the primary hypothesis. Possible gender-specific differences were analyzed using a moderated mediation model. The prevalence of psychological distress was consistently higher in patients compared to controls (t0: 37.3% vs. 13.2%, t1: 38.2% vs 11.7%, t2: 37.4% vs. 13.1%). This between-group difference in psychological distress at the first follow-up was fully mediated by baseline resilience scores (65.4% of the total effect). During the second-follow up, extraversion accounted for 18% of the total effect, whereas resilience slightly decreased to 56% of the total effect. Gender was not a significant moderator in the model. Next to showing that people with MHD were particularly affected by the pandemic, these findings indicate that higher degrees of resilience and extraversion are related to less long-term psychological distress. Our findings stress the relevance of strengthening resilience and extraversion and to provide mental health support in times of crises, both to patients with MHD and the general population.

Bifunctional electrocatalytic reduction performance of nitrogen containing biomass based nanoreactors loaded with Ni nanoparticles for oxygen and carbon dioxide

In the face of increasing energy demand, the approach of transformation that combines energy restructuring and environmental governance has become a popular research direction. As an important part of electrocatalytic reactions for gas molecules, reduction reactions of oxygen (ORR) and carbon dioxide (CO2RR) are very indispensable in the field of energy conversion and storage. However, the non-interchangeability and irreversibility of electrode materials have always been a challenge in electrocatalysis. Hereon, nickel and nitrogen decorated biomass carbon-based materials (Ni/N-BC) has been prepared by high temperature pyrolysis using agricultural waste straw as raw material. Surprisingly, it possesses abundant active sites and specific surface area as a bifunctional electrocatalyst for ORR and CO2RR. The three-dimensional porous cavity structure for the framework of biomass could not only provide a strong anchoring foundation for the active site, but also facilitate the transport and enrichment of reactants around the site. In addition, temperature modulation during the preparation process also optimizes the composition and structure of biomass carbon and nitrogen. Benefit from above structure and morphology advantages, Ni/N-BC-800 exhibits the superior electrocatalytic activity for both ORR and CO2RR simultaneously. More specifically, Ni/N-BC-800 exhibits satisfactory ORR activity in terms of initial potential and half wave potential, while also enables the production of CO under high selective. The research results provide ideas for the development and design of electrode materials and green electrocatalysts, and also expand new applications of agricultural waste in fields such as energy conversion, environmental protection, and resource utilization.

Investigating the characteristics of internal discharge shock waves in gas‐insulated switchgear under varied gap configurations

AbstractGas‐insulated switchgears (GIS) are crucial components of high‐voltage power transmission and distribution systems. Internal discharges within GIS have garnered significant attention in the field of power engineering. This study investigates the characteristics of internal discharge shock waves in GIS under an air pressure of 0.3 MPa and three different discharge gap conditions: 1, 1.5, and 2 mm. High‐speed shadowing techniques are used to analyse the propagation speed, morphology, and post‐wave parameters. The study findings reveal that although the characteristics of internal discharge shock waves in GIS noticeably change with the gap size, they also exhibit a consistent trend: as the gap size increases, the initial shock wave accelerates, intensifying the discharge. Simultaneously, the rate of attenuation rises, with the shock wave becoming weaker after ≈30 µs. Furthermore, the post‐wave parameters follow a similar pattern, with an increase in gap size leading to higher parameter values but also a faster decay rate. The parameters decay more rapidly between 10 and 20 µs, slow down between 20 and 30 µs, and ultimately stabilize after around 30 µs. The results of this study hold significant theoretical and practical implications for the monitoring, diagnosis, and prevention of internal discharges in GIS.

Abstract TP309: Cortical Extravasation of Neutrophils and Unexpected Persistence Following Ischemia/Reperfusion in a Murine Ischemic Stroke Model

Background and Purpose: Neutrophils are the first recruited leukocytes following ischemia/reperfusion injury in the brain; however, when and where neutrophils enter the brain parenchyma to exert their effects is controversial. Understanding the spatiotemporal underpinnings of leukocyte extravasation is required to advance therapeutic interventions. Here we describe the complex evolution of neutrophil recruitment and extravasation following ischemic stroke. Methods: Circulating neutrophils were pulse-labeled with EdU to track specific cells recruited post stroke. The transient middle cerebral artery occlusion (tMCAO) model was used to simulate large vessel occlusion and reperfusion. Coronal sections were examined at various timepoints and the position of EdU-labeled neutrophils was precisely determined by fluorescence microscopy. PECAM antibody treatment was used to disrupt neutrophil extravasation at the cortical surface and alter migration kinetics. Results: At early timepoints, 12 h and 24 h, neutrophil recruitment was unexpectedly superficial. Over 120 h, neutrophils were found increasingly deeper into the subcortex. Timing of tMCAO surgery with EdU labeling allowed for specific labeling of the initial wave of neutrophils. Surprisingly, many EdU positive neutrophils were still observed at 72 h, indicating they had survived for several days. The number and distribution of EdU positive neutrophils confirms the majority of neutrophil recruitment occurs before 24 h across the infarct. Disrupting leukocyte extravasation with PECAM function-blocking antibodies restricted neutrophils to the cortical surface. Conclusions: Our findings demonstrate that neutrophil infiltration post stroke evolves over several days. This data suggests neutrophils are recruited to the infarct within the first 24 h, enter the brain at the cortical surface, distribute throughout the infarct, and persist over 72 h. Furthermore, disrupting extravasation with PECAM antibodies modulates neutrophil progression into the infarct. A better understanding of leukocyte spatiotemporal infiltration and its regulators will help inform future therapeutic interventions targeting leukocytes.

Impact of the Sars-Cov-2 outbreak on the initial clinical presentation of new solid cancer diagnoses: a systematic review and meta-analysis

BackgroundThe COVID-19 pandemic might have delayed cancer diagnosis and management. The aim of this systematic review was to compare the initial tumor stage of new cancer diagnoses before and after the pandemic.MethodsWe systematically reviewed articles that compared the tumor stage of new solid cancer diagnoses before and after the initial pandemic waves. We conducted a random-effects meta-analysis to compare the rate of metastatic tumors and the distribution of stages at diagnosis. Subgroup analyses were performed by primary tumor site and by country.ResultsFrom 2,013 studies published between January 2020 and April 2022, we included 58 studies with 109,996 patients. The rate of metastatic tumors was higher after the COVID-19 outbreak than before (pooled OR: 1.29 (95% CI, 1.06-1.57), I2: 89% (95% CI, 86-91)). For specific cancers, common ORs reached statistical significance for breast (OR: 1.51 (95% CI 1.07-2.12)) and gynecologic (OR: 1.51 (95% CI 1.04-2.18)) cancers, but not for other cancer types. According to countries, common OR (95% CI) reached statistical significance only for Italy: 1.55 (1.01-2.39) and Spain:1.14 (1.02-1.29). Rates were comparable for stage I-II versus III-IV in studies for which that information was available, and for stages I-II versus stage III in studies that did not include metastatic patients.ConclusionsDespite inter-study heterogeneity, our meta-analysis showed a higher rate of metastatic tumors at diagnosis after the pandemic. The burden of social distancing policies might explain those results, as patients may have delayed seeking care.

Particle Production in pA Collisions at Mid-Rapidity in the Color Glass Condensate

Particle correlations in small collisions systems, like proton–nucleus, lie at the core of the discussion about whether quark–gluon plasma is produced in small systems. Both initial and final state explanations have been essayed to describe such correlations. In this work, we focus on the initial state explanations provided by the quantum effects in the initial wave function of the incoming hadrons, in the framework of the Color Glass Condensate effective theory. We describe the formalism indicating the different inputs required for phenomenological applications. We compare the results from two different models, finding that the results for azimuthal harmonics agree qualitatively, but show quantitative differences, particularly at transverse momenta above the saturation scale.

A Phenomenological Study of the Under-Skilled Learners on Reading and Numeracy through Distance Learning: Case of Elementary Schools

Numerous challenges have arisen during this time, including issues with connectivity and access to online materials. Educational psychology can provide valuable insights to sustain education during periods of school closures, such as those experienced during the COVID-19 pandemic. However, the effectiveness of online learning has been a topic of discussion, as face-to-face instruction cannot be replicated entirely online. Tackling poverty in education at the elementary level requires a comprehensive approach that addresses the social, economic, and educational needs of disadvantaged students and their families. Students from these backgrounds may face academic struggles and find it difficult to keep pace with their peers. The current study, which is descriptive in nature, suggests a significant decline in the average competency scores of fifth-grade students in reading and numeracy. These findings supplement previous research on the development of individual competency, which revealed a greater reduction in competency levels during the initial wave of the pandemic

COVID-19 pandemic effects: Examining prenatal internalizing symptoms and infant temperament.

For pregnant women, the COVID-19 pandemic has resulted in unprecedented stressors, including uncertainty regarding prenatal care and the long-term consequences of perinatal infection. However, few studies have examined the role of this adverse event on maternal wellbeing and infant socioemotional development following the initial wave of the pandemic when less stringent public health restrictions were in place. The current study addressed these gaps in the literature by first comparing prenatal internalizing symptoms and infant temperament collected after the first wave of the pandemic to equivalent measures in a pre-pandemic sample. Second, associations between prenatal pandemic-related stress and infant temperament were examined. Women who were pregnant during the COVID-19 pandemic endorsed higher pregnancy-specific anxiety relative to the pre-pandemic sample. They also reported greater infant negative emotionality and lower positive affectivity and regulatory capacity at 2months postpartum. Prenatal infection stress directly predicted infant negative affect. Both prenatal infection and preparedness stress were indirectly related to infant negative emotionality through depression symptoms during pregnancy and at 2months postpartum. These results have implications for prenatal mental health screening procedures during the pandemic and the development of early intervention programs for infants born to mothers during this adverse event.

Mass formulas for individual black holes in merging binaries

We give formulas for individual black hole masses in a merger, by using Newtonian physics, in terms of the three measured quantities in the detector: the initial wave frequency f 1, the maximum detected frequency (chirp frequency) f 2, and the time elapse τ between these two frequencies. Newtonian gravity provides an excellent pedagogical tool to understand the basic features of gravitational wave observations, but it must be augmented with the assumption of gravitational radiation from General Relativity for accelerating masses as there is no gravitational wave Newtonian gravity. The simplest approach would be to consider a binary system of two non-spinning masses (two black holes) circling their common center of mass. All the computations can be done within Newtonian physics, but the General Relativistic formula for the power carried by gravitational waves is required in this scheme. It turns out there is a subtle point: for the consistency of this simple, yet pedagogical computation, taking the lowest order power formula from General Relativity leads to complex individual masses. Here we remedy this problem and suggest a way to write down an average power formula coming from perturbative General Relativity.

Design of fault location algorithm based on online distributed travelling wave for HV power cable.

To tackle the challenge of localization failure due to traveling wave dispersion during a mid-line fault in a long high-voltage cable, this study conducts an in-depth analysis of the refraction characteristics of the cumulative three-phase sheath currents at cross commutation points and direct grounding points, facilitated by detailed theoretical derivation. We introduce the novel concept of a 'first traveling wave attenuation index,' which quantifies the peak of the initial faulted traveling wave. We strategically place distributed traveling wave detection devices solely in the first direct grounding box of each cross-interconnected main section, effectively segmenting the line into five distinct zones. These zones are identified based on the unique transient polarities exhibited by the first traveling wave of fault current at each impedance mismatch point along the cable. To overcome the issue of weak traveling wave signals collected at the first end measurement point, we propose an innovative peak detection method for the first wave. This method harnesses the power of empirical wavelet transform (EWT) and multi-resolution singular value decomposition (MRSVD), providing a significant boost in ranging accuracy compared to traditional wavelet methods. Simulation results validate the efficacy of our proposed fault location method, which accurately pinpoints the fault section by contrasting the polarity of the first wave peak of the sheath current detected at each measurement point. Notably, our method ensures safety and convenience as the equipment does not require direct contact with high voltage.