This Manuscript delves into a deeper understanding of the fundamental concept of electrolysis, detailing the main types of Electrolyzers and conducting a meticulous analysis of their advantages and disadvantages. Additionally, this work presents a thorough examination of DC-DC and AC-DC converters, which are crucial in applications aimed at the production of green hydrogen, illustrating their functionality and applicability in great detail. Furthermore, the manuscript explores the diversity of power electronic systems employed in the production of green hydrogen, emphasizing the critical role of converters in this context. The investigation extends to effective strategies for integrating these technologies, aiming to optimize the green hydrogen production process. This study intends to be a significant contribution to the advancement of knowledge in sustainable technologies, highlighting power electronics as a fundamental vector in electrolysis, promoting the generation of renewable energies, and reinforcing the commitment to a greener and more sustainable future.

Background: The use of local anesthetics (LA) in patients with Brugada Syndrome (BrS) is still controversial, even though no large-scale study has confirmed a hazardous effect. This study’s main goal is to assess the occurrence of malignant arrhythmias or defibrillations in patients with BrS during the administration of local anesthetics and the 30 following days. The secondary aim was to investigate adverse events during hospitalization and the 30-day readmission and mortality rate. Methods: We performed a retrospective cohort study on patients with BrS who received regional anesthesia from January 1, 1996, to September 30, 2020. We analyzed the anesthetic charts and electronic medical records up to 30 days after each administration of local anesthetic. Results: We analyzed 47 procedures of patients with BrS who received locoregional anesthesia. These patients were divided into three groups: 27 in the peripheral nerve block (PNB) group, 13 in the epidural group, and 9 in the spinal group. One patient in the PNB group intraoperatively developed ventricular fibrillation after administration of ajmaline. No other events were recorded. Conclusion: Based on the analysis of our database, we conclude that using Ropivacaine for locoregional anesthesia and Bupivacaine for spinal anesthesia did not induce arrhythmias or other adverse events. No readmissions or mortalities were registered within 30 days.

The study of river dynamics has long relied on the analysis of traditional in situ hydrographs. This graphical representation of temporal variability at a given location is so ubiquitous that the mere term “hydrograph” is widely recognized as a time series. While such a “temporal hydrograph” is well suited for in situ data analysis, it fails to represent hydrologic variability across space at a given time; a perspective that characterizes satellite-based hydrologic observations. Here we argue that the concept of “spatial hydrograph” should be the focus of its own dedicated scrutiny. We build “space series” of river discharge and present their analysis in the context of peak flow event detection. We propose the use of peak event spatial coverage, referred to as “length”, as an analog to event duration. Our analysis is performed in the Mississippi basin using a dense in situ network. We reveal that peak flow events range in length from around 75 to 1,800 km with a median (mean) value of 330 (520) km along the basin’s largest rivers. Our analysis also suggests that spatial sampling needs to be a factor of 4 (2) finer in resolution than peak flow lengths to detect 81±13% (70±20%) of events and to estimate their length within 84±3% (67±12%) median accuracy. We evaluate the connection between temporal and spatial scales of peak flows and show that events with longer durations also affect larger extents. We finally discuss the implications for the design of satellite missions concerned with capturing floods across space.

Atmospheric rivers (ARs) transport vast amounts of moisture from low to high latitude regions. One region particularly impacted by ARs is Interior Alaska (AK). We analyze the impact of ARs on the annual river ice breakup date for 25 locations in AK. We investigate the AR-driven rise in local air temperatures and explore the relationship between ARs and precipitation, including extremes and interannual variability. We found that AR events lead to an increase in local air temperatures for up to one week (by ≈ 1°C). Interannually, ARs account for 36% of total precipitation, explain 48% of precipitation variability, and make up 57% of extreme precipitation events. By estimating the heat transfer between winter precipitation and the river ice surface, we conclude that increased precipitation during the coldest period of the year delays river ice breakup dates, while precipitation occurring close to the breakup date has little impact on breakup timing.

To the Editor of the Journal of Cardiovascular Electrophysiology, We read with great interest the article the recent publication titled ”Impact of Artificial Intelligence Arrhythmia Mapping on Time to First Ablation, Procedure Duration, and Fluoroscopy Use” by Fox et al [1]. The study investigates the effectiveness of AI-driven arrhythmia mapping in reducing time to first ablation, procedure duration, and fluoroscopy use in patients undergoing cardiac ablation. The authors conducted a retrospective analysis of 28 patients treated with traditional methods and compared the outcomes with those of 28 patients treated using the new AI mapping technology. They observed significant improvements in procedural efficiency and safety with the AI approach. While the results presented are promising, several aspects of the study deserve careful consideration to understand its full impact and limitations. First, the retrospective design of this study introduces potential biases, such as selection bias and information bias.Patients were not randomized, which could lead to differences between the control and experimental groups that are not related to the intervention. RCTs are needed to validate these findings and minimize these biases. Second, the study relies on historical controls, comparing patients treated with traditional methods in the past to those treated with AI mapping more recently. These temporal differences could introduce confounding variables, making it unclear whether the improvements are due to the AI mapping or other advancements in the field. Furthermore, the study does not provide detailed information on the specific AI algorithms used for arrhythmia mapping.Understanding the underlying technology is crucial for assessing the broader applicability of the results. Different AI models may have varying levels of effectiveness, and their performance can be influenced by the quality and type of data used for training and validation [2]. Finally, the study’s findings may not be generalizable to all clinical settings. The patient population, procedural techniques, and operator expertise at the study site may differ from those at other institutions. Further studies involving multiple centers and diverse patient populations are needed to confirm the broad applicability of the results. While the study by Fox et al. provides promising evidence of the benefits of AI in arrhythmia mapping, critical evaluation of the study design and methodology reveals several limitations that need to be addressed. Further prospective,randomized controlled trials are essential to validate these findings and ensure the robustness and generalizability of AI applications in clinical practice. This study represents an important step towards integrating AI into routine clinical practice, with the potential for significant improvements in patient outcomes and procedural efficiency. Sincerely, Federico Guerini References 1. Fox SR, Toomu A, Gu K, Kang J, Sung K, Han FT, Hoffmayer KS, Hsu JC, Raissi F, Feld GK, McCulloch AD, Ho G, Krummen DE. Impact of artificial intelligence arrhythmia mapping on time to first ablation, procedure duration,and fluoroscopy use. J Cardiovasc Electrophysiol. 2024 May;35(5):916-928. doi: 10.1111/jce.16237. Epub 2024 Mar 4. PMID: 38439119. 2. Loeffler SE, Trayanova N. Primer on Machine Learning in Electrophysiology. Arrhythm Electrophysiol Rev. 2023 Mar 28;12:e06. doi: 10.15420/aer.2022.43. PMID: 37427298; PMCID: PMC10323871.

Case Presentation: A 50-year male was referred for consideration of a redo ablation procedure. 2 years before this referral, he was diagnosed with an episode of pre-excited atrial fibrillation, and underwent an attempt at a left lateral pathway ablation. The index attempt with radiofrequency ablation did not eliminate the pathway and he was discharged on oral flecainide. The procedure was also complicated by a right-sided deep vein thrombosis and further attempts at a redo procedure were delayed. However, he developed recurrent episodes of palpitations 2 years after his index procedure. Hence, he was referred for a second attempt at ablation. His baseline 12-lead ECG did not show any evidence of manifest pre-excitation. During his EP study, pre-excitation was seen with atrial extrastimuli and with shorter intervals, a narrow complex tachycardia was induced (Figure [1](#fig-cap-0001)). However, the atrial activation appeared to alternate at times, despite the tachycardia being sustained. What is the mechanism of the alternating atrial activation?

In response to the problem of high-frequency composite noise in ±800kV Converter Station built-in ultra-high frequency partial discharge detection, which interferes and masks partial discharge signals, and cannot obtain accurate partial discharge waveforms, this paper focuses on the wideband extended circuit model and proposes a wideband extended circuit noise control method based on fractional order filtering system. The effectiveness, stability, and reliability of this method in controlling high-frequency composite noise in UHF partial discharge detection were verified and calculated through two parameters, namely ”root mean square value (RMS)” and ”waveform range (R)”. Laboratory experiments, on-site environmental tests, and finite element Maxwell 3D electrostatic field module simulation calculations were conducted to verify the effectiveness, stability, and reliability of this method.

Congenitally correct transposition of the great arteries (cc-TGA) is an extremely rare congenital cardiac malposition. They are usually detected by echocardiography in the fetal period. This case report describes a 58-year-old female patient who presented with tachycardia. The combination of cc-TGA and isolated levocardia is incidentally diagnosed by transthoracic echocardiography and cardiac magnetic resonance imaging.

Anti-rubella IgG serum levels predict risk for SARS-CoV-2 breakthrough infectionsTo the Editor,

Hyperlipidemia are the most common treatment-related adverse effects of lorlatinib, severe hyperlipidemia can lead to discontinuation of medication, thrombosis, and even life-threatening conditions. Lorlatinib most often reported to causing grade 1-2 hyperlipidemia, and currently there is no treatment method for grade 4 hypertriglyceridemia. Herein, we report a case of a 47-year-old female with multiple brain metastases from lung adenocarcinoma, developed to grade 4 hypertriglyceridemia within 9 months of administration of lorlatinib and was managed successfully with dual lipid-lowering therapy.

This topic has been studied using constant interior and exterior finishing materials (Thermostone, 200 mm thick (A), fired clay bricks, 240 mm thick (B), hollow concrete blocks, 200 mm thick (C), solid concrete blocks, 140 mm thick (D), and limestone, 200 mm thick (E)) due to the availability of many different types of building materials in Iraq and the lack of control over the use of the best. to demonstrate how each of these materials affects a building’s insulation to deliver the appropriate levels of comfort and achieve the greatest possible reduction in the electrical energy needed for air conditioning. A unique chamber was created for performing the actual trials on such walls in their natural environment, which was the climate of the city of Baghdad (zip code 10016,33 ºN latitude, 44 ° E longitude). And a unique room was created for performing real-world tests on those walls, either in their current state of operation or with the addition of thermal insulation (60 mm thick microfiber glass insulation materials). The values for electricity consumption are 199,138,121,101,92 kW/m2 without the insulator, but when the insulator is used, the values become 54,92,63,100,58 kw/m2 for the models Case-C1, Case-E1, Case-B1, Case-D1, and Case-A1. respectively, the percentage of the reduction in electrical energy consumed by the room’s air conditioner ranges from 25–60%, depending on the model compared to the conventional model, and the difference in savings is only 35%. The amount of savings in the electrical energy consumed by the air-conditioning unit used (to provide standard thermal conditions inside the building) will decrease when the insulator is incorporated into the structural components because the savings difference will be equal to 15% only when changing the quality of the wall used (described in the study) compared to the traditional method.

Crossed renal ectopia with rectal cancer: a Case ReportZhenwei Tang 1 Huifeng Yang 2 Zhaoyu Wu 3 Changyou Wang4*1.North China University of Science and Technology Affiliated Hospital,Tangshan 063000, Hebei Province,ChinaE-mail: 2756084798@qq.com2. North China University of Science and Technology Affiliated Hospital,Tangshan 063000, Hebei Province,ChinaE-mail：2453524391@qq.com3 North China University of Science and Technology Affiliated Hospital,Tangshan 063000, Hebei Province,ChinaE-mail：wuzhaoyu1111100@163.com4 *Corresponding author:North China University of Science and Technology Affiliated Hospital,Tangshan 063000, Hebei Province,ChinaE-mail: fhbj-2004@163.com

Infectious diseases, whether arising from monomicrobial or polymicrobial origins, continue to pose significant challenges to global public health. This comprehensive review explores the intricate landscape of infectious diseases, shedding light on the evolving threats, diagnostic complexities, and treatment hurdles. Central to this discussion is the burgeoning role of nanoparticle-based therapies in revolutionizing the approaches to combat infectious agents. In the realm of monomicrobial diseases, challenges encompassing pathogen recognition and treatment persistence persist. Nanoparticles, with their tailored drug delivery capabilities and unique physicochemical properties, emerge as promising candidates for targeted and efficient therapeutic interventions. Their potential to optimize treatment outcomes and address individualized patient needs stands at the forefront of innovative strategies against monomicrobial infections. Biofilm formation and intricate microbial synergy or antagonism contribute to the resistance of these infections to traditional treatments. In response, nanoparticles, particularly those with broad-spectrum antimicrobial properties, offer a paradigm shift. By disrupting biofilms and concurrently targeting diverse pathogens, nanoparticles present novel avenues for overcoming the intricacies of polymicrobial infections. However, the translation of nanoparticle-based therapies into clinical practice is accompanied by challenges. Concerns regarding biocompatibility, toxicity, environmental impact, and the imperative need for standardized protocols and regulatory frameworks necessitate careful consideration. This review concludes by highlighting the convergence of infectious diseases and nanotechnology as a gateway to innovative strategies for prevention, diagnosis, and treatment in the 21st century. The ongoing exploration of nanotechnology, coupled with multidisciplinary collaboration and robust research endeavors, signifies a transformative era in infectious disease management.

Background : Non-steroidal anti-inflammatory drugs (NSAIDs) are one of the main causes of hypersensitivity to drugs in the paediatric population. Studies about the natural history of cross-intolerance reactions to NSAIDs are scarce. The aim of this study was to assess cross intolerance to NSAIDs over time in the paediatric population. Methods : Retrospective study in patients under 18 years old diagnosed with cross intolerance to NSAIDs by oral challenge test between 1999 and 2019. These patients were prospectively re-assessed in 2021-2022 by challenge with acetylsalicylic acid (ASA). Patient characteristics and potential factors that might have helped them develop tolerance to NSAIDs were analysed. Results : Between 1999 and 2019, 46 patients were diagnosed with cross intolerance to NSAIDs; of these, 19 were re-assessed at a second visit after a mean of 116 months from initial diagnosis. The NSAID most involved in reactions was ibuprofen. At Visit 2, it was observed that 15 (78.9%) patients tolerated ASA and other NSAIDs. Patients with atopy and who initially presented with asthma were more likely to maintain their diagnosis of cross intolerance to NSAIDs ( p=0.001 and p=0.035, respectively). On the contrary, most patients with initial angioedema developed tolerance over time ( p=0.035). Conclusion : Patients with cross intolerance to NSAIDs may develop tolerance to them over time. This tolerance might be determined both by the presence of atopy and the initial history of the patient.

People living with HIV (PLWH) despite having appreciable depletion of CD4 + T-cell show a good SARS-CoV-2 vaccination response. The underlying mechanism(s) are currently not understood. We studied serological and polyfunctional T-cell responses in PLWH receiving anti-retroviral therapy stratified on CD4 + counts as PLWH-high (CD4 ≥500 cells/μL) and PLWH-low (<500 cells/μL). Responses were assessed longitudinally before the first vaccination (T0), 1-month after the first dose (T1), and 3-months (T2), and 6-months (T3) after the second dose. Expectedly, both PLWH-high and -low groups developed similar serological responses after T2, which were also non-significantly different to age and vaccination-matched HIV-negative controls at T3. The IgG titers were also protective showing a good correlation with ACE2-neutralizations (R=0.628, P=0.005). While no difference at T3 was observed between PLWH and controls in activated CD4 +CD154 + and CD4 + memory T-cells, spike-specific CD4 + polyfunctional cytokine expression analysis showed that PLWH preferentially express IL-2 (P<0.001) and controls, IFN-γ (P=0.017). CD4 + T-cell counts negatively correlated with IL-2-expressing CD4 + T-cells including CD4 + memory T-cells (Spearman ρ: ­ -0.85 and -0.80, respectively; P<0.001). Our results suggest that the durable serological and CD4 + T-cell responses developing in vaccinated PLWH are associated with IL-2-mediated CD4 + T-cell activation that likely compensates for CD4 + T-cell depletion in PLWH.

Vitamin C or ascorbic acid is used in modern medicine supplements for therapeutic objectives in various disorders associated with oxidative stress, inflammation, and immune dysregulation. In the present review article, updated experimental and clinical studies on anti-inflammatory, antioxidant, and immunomodulatory effects of vitamins C are discussed. Electronic search engines were searched using appropriate keywords until the end of 2022. Vitamin C showed anti-inflammatory effects in various inflammatory disorders through modulating inflammatory cells and mediators. Vitamin C also showed antioxidant effects by reducing or inhibiting the production of reactive oxygen species (ROS), hydroxyl radicals, nitric oxide (NO), superoxide anion, and peroxyl radicals, which leads to alleviating of oxidative stress. The immunomodulatory effect of vitamin C also reported on different immune deficiently associated disorders through immune suppressive or in some cases by immune stimulatory mechanisms. Therefore, reviewed papers indicated potential therapeutic effects of vitamin C on inflammatory, oxidative stress, and/or immune-dysregulation associated disorders.

Malignant Peripheral Nerve Sheath Tumor and Epitheloid Sarcoma Associated with Von Recklinghausen Disease: A Case ReportShriya Sharma,1 Pasang Sherpa,2Ganesh Giri2 1Division of Advanced Heart Failure and Transplant, Mayo Clinic, Jacksonville, FL, USA2Division of Quantitative Health Sciences, Mayo Clinic, Jacksonville, FL, USAkey clinical messageNeurofibromatosis type 1(NF-1) is an autosomal hereditary neurocutaneous syndrome marked by clinical features of neurofibromas, cafe-au-lait spots, osseous lesions, optic path glioma, axillary or inguinal freckles and lisch nodules. Malignant peripheral nerve sheath tumor (MPSNT), often associated with NF-1, is a soft tissue sarcoma originating from peripheral nerve sheath, known for its aggressive nature and low survival rates. Epitheloid sarcoma, a soft tissue sarcoma mostly occurring in extremities with potential distant and local metastasis also poses significant risk in individuals with NF-1.A 23-year-old male with NF-1 presented with right leg pain and gluteal swelling, ultimately diagnosed with epitheloid leiomyosarcoma and malignant peripheral nerve sheath tumor. Clinical examination revealed NF-1 features and a biopsy confirmed the diagnosis, leading to wide local excision and adjuvant radiotherapy. We present this case to emphasize the necessity of robust monitoring to ensure early detection and treatment intervention of this orphan malignant tumors in NF-1 patients.

not-yet-known not-yet-known not-yet-known unknown Raptors, with their specialized adaptations, often target a diverse array of prey, frequently including primates, but their primary predation tends to focus on non-anthropoid species. We report a case of harpy eagle Harpia harpyja, one of the Earth’s largest eagle, attack on adult human beings, in French Guiana, in the Amazon rainforest. We analyze the raptor’s aggression patterns and the incidents’ context. We examined both published and unpublished records of raptors attacking anthropoids—including humans—offering a comprehensive single-reference into these rare interactions.

Solar energy is widespread and easily accessible which make it the most promising renewable energy to solve energy crisis. As the ubiquitous distribution of selective solar absorbers employed in architecture and street, their substantially contributions to mitigate environment pollution and facilitate daily energy consumption are important; however, its implementation has been largely limited to poor color display and unideal cost-efficiency. Here, a bio-inspired selective solar absorber (Bio-SSA) has been developed for use as an aesthetically compatible photothermal convector. The Bio-SSA is designed based on a SiO2/W/SiO2/Cu resonant absorption cavity and a two-dimensional photonic crystal (PC). It exhibits solar absorption and infrared (IR) emissivity of 81.1% and 0.17, respectively, while displaying seven different colors in a single unit. The calculated theoretically saving of year-round electricity energy up to maximum 1598 KWh when implemented in high altitude regions in China. Such Bio-SSA enjoys low-cost and simple configuration can further been utilized in large-scale and path a new way for architecture integratable solar energy system.

Backgrounds : Tonsillectomy is a commonly performed procedure, many factors could cause post-tonsillectomy haemorrhage and if it occurred patients might need stop bleeding under general anesthesia. Objective : To identify the factors that could cause post-tonsillectomy hemorrhage. Study design : Retrospective cohort and descriptive study Materials and methods : Data have been randomly collected from 549 patients through the records at Phramongkutklao Hospital (PMK) during 2011-2020. The illustration of the data before the procedure, indications for evaluation before the operation, during operation, and post-tonsillectomy have been reviewed to evaluate the risk factors causing the hemorrhage. Results : Our study revealed that the average age was 26.89 ± 15.69 years and overall post-tonsillectomy hemorrhage was 56 (10.2%) patients that occurred often in post-operative day 6. The multiple logistic regression indicated the factors that caused such haemorrhages. There were male gender 13.27% (P=0.039, OR 2.11, CI 1.04 - 4.30), age below 19 years 7.14% (P=0.016, OR 7.96, CI 1.46 – 43.27), age between 19-45 years 13.44% (P=0.024, OR 5.74, CI 1.26 – 26.11), surgeons experience that less than 15 years 14% (P=0.023, OR 2.85, CI 1.16 – 7.01), mean arterial pressure(MAP) 90.00 ± 13.15 mmHg(P=0.02, OR 1.04, CI 1.02-1.07), prescribed intravenous antibiotics 15% (P=0.036, OR 2.03, CI 1.05-3.92) and post-operative pain score in first date over 5 scores 18.67% (P=0.037, OR 2.25, CI 1.05 - 4.81) Conclusion : Patients admitted for tonsillectomy with male gender, age below 45 years, and patients who underwent tonsillectomy by surgeons experience lower than 15 years should be carefully monitored for post-tonsillectomy hemorrhage.

Objective: To estimate the proportion of caesarean sections (CS) not meeting audit criteria for prolonged labour. Design: Cross-sectional. Setting: Five urban maternity units in Dar es Salaam, Tanzania. Population: Women giving birth by CS with an indication of prolonged labour, from October 1 st, 2021 to August 31 st, 2022. Exclusion criteria: referral to the study sites because of prolonged labour or cervical dilatation >6 cm upon admission; non-cephalic presentation; multiple pregnancy; intrauterine fetal death; failed induction; previous CS; or other reasons for CS. Methods: Criterion-based audit of CS case files with an indication of prolonged labour. Main Outcome Measure : CSs in women with uncomplicated labour progress. Results: Overall CS rate was 32% (2949/9364) and 746/1517 (47.9%) of first-time CSs were performed because of prolonged labour. Out of these, 456 met inclusion criteria and 243/456 (53.3%) CSs were in uncomplicated labour: 1) women not being given a trial of labour (78/243, 32.1%); 2) women in first stage of active labour not crossing the partograph action line (145/243, 59.7%); and 3) women in second stage less than 1 hour (20/243 8.2%). Conclusion: Almost half of CS in the unscarred uterus were because of prolonged labour and many did not meet audit criteria for prolonged labour. Crowded hospitals and inadequate monitoring may have prompted defensive decision-making. Unconducive labour wards may, therefore, indirectly drive the CS epidemic while clinical guidelines for CS decision-making remain scarce.

The urban environment impacts residents’ health and well-being in many ways. Environmental benefits and risks may be interactively and inequitably distributed across different populations in cities, and these patterns may change over time. Here, we assess the spatial distribution of environmental risks and benefits in pairs, considering synergies and trade-offs, in an illustrative metropolitan area (Metro Vancouver) in Canada in the years 2006 and 2016. We classify census dissemination areas as sweet, sour, risky, or medium spots based on relative exposures for six environmental combinations: walkability and air pollution; heat stress and air pollution; vegetation coverage and air pollution; vegetation coverage and heat stress; walkability and accessibility to natural recreational areas; and heat stress and accessibility to natural recreational areas. We evaluate whether different population groups are disproportionately exposed to lower environmental quality based on linear regressions. We find that while performance for individual environmental variables improved over the decade, considering their combinations, sweet spots became sweeter and sour spots became sourer. Residents with high material and social deprivation and visible minorities are disproportionately exposed to lower environmental quality in both years for most of the environmental combinations. Further, we find that these inequities are not improving over time for all groups: for instance, South Asian residents in the region faced higher disproportionate burdens or diminished access to benefits in 2016, as compared to 2006. Given these findings, we suggest considerations of cumulative exposure in prioritizing areas for intervention, targeting the sour and risky spots persistently experienced by vulnerable populations.

In two experimental studies, we investigated effects of sleep duration and light intensity on effort-related cardiovascular response. We predicted, that due to reduced alertness after short sleep and during exposure to lower light intensity, perceived task demand and thus mental effort should increase. Effort was operationalized as sympathetic activity of the autonomous nervous system and assessed through reactivity of the cardiac pre-ejection period (PEP) and systolic blood pressure (SBP). Thirty-nine (Study 1) and 24 (Study 2) healthy volunteers underwent two experimental sessions, one after 5 and one after 8 hours of sleep opportunity in a counterbalanced order. Light intensities were 1 lux vs. 65 lux (between-person) in Study 1 and 100 lux vs. 500 lux (within-person) in Study 2. Experimental lighting conditions were applied for 15 min which was followed by a 5-min auditory two-back (Study 1) or modified auditory Sternberg (Study 2) task phase. No significant effects of sleep duration or light intensity on effort-related cardiovascular response could be shown in Study 1. An exploratory median split on sleepiness ratings revealed a stronger PEP response during the 1st minute of task performance for participants reporting high sleepiness (p = .041). In line with our hypothesis, Study 2 showed a stronger SBP and DBP reactivity after sleep restriction (ps < .001), indicating higher effort investment. Contrary to our prediction, 500 lux light led to higher PEP reactivity compared to 100 lux (p = .032). Overall, our results provide the first evidence of sleep duration and sleepiness impact on mental effort.

Adipose Tissue Allograft for the Management of a Pre-Ulcerative Plantar Lesion in a Diabetic Neuropathic PatientMatthew J. Regulski1, DPM, Molly C. Saunders2, Sharron E. McCulloch21Ocean County Foot & Ankle Surgical Associates, P.C., Forked River, New Jersey; Medical Director, Wound Institute of Ocean County, Toms River, New Jersey2Britecyte, Inc., Frederick, Maryland