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Electronics and Nano Lasers (Continuous Waves or CW ) Structure and Function    
Afshin Rashid

Afshin Rashid

September 13, 2024
Note: Normally, the laser beam is continuously exited from the optical chamber of the nano laser, the output power of cw nano lasers has a wide range. Liquid and ion nano lasers are examples of continuum lasers. This range includes milliwatts like nano lasers for optical communication to several microwatts (3 to 5 microwatts) like nano lasers used in military industries.The output of nano laser is a type of light that is placed in different parts of the spectrum of electromagnetic waves according to the active environment of nano laser. Wavelength is one of the most important properties of waves, which has an inverse relationship with energy. Therefore, different waves can be displayed as a spectrum of electromagnetic waves.
The relationship between serum levels of thyroglobulin antibody and the risk of recur...
F Amirian
Mohammad Ali  Yaghoubi

F Amirian

and 8 more

September 13, 2024
Objective: Thyroid Autoantibodies (TgAbs) are associated with autoimmune thyroid disorders and are also used in thyroid cancer follow-up to monitor for recurrence of disease. This study aimed to explore the potential utility of TgAbs as a surrogated tumor marker and examine the relationship between fluctuations in TgAbs levels and disease recurrence in patients with Differentiated Thyroid Cancer (DTC). Method: This cohort study was conducted on a sample of 97 patients who underwent thyroidectomy for differentiated thyroid cancer (DTC) between the years 2017 and 2021. Following surgery (with or without lymph node dissection), levothyroxine therapy and 131 iodine were prescribed (as necessary). Regular laboratory evaluations were conducted, which involved measuring Tg and TgAb at 3 and 6 months postoperatively. Patients were classified based on recurrence rate and different levels of TgAb and ROC analysis was applied. All data were analyzed with SPSS24, and a p-value <0.05 was considered statistically significant. Results: For low-risk patients, TgAb trends over time showed an increase at 6 months, while for high-risk patients, TgAb levels continuously rose starting from 3 months. Although TgAb levels above the functional sensitivity threshold did not predict recurrence overall, changes in TgAb levels at 6 months compared to 3 months after surgery were indicative of recurrence. Conclusion: In the entire population, having TgAb levels higher than the functional sensitivity threshold had not risk of various relapses. However, changes in TgAb serum levels at 6 months after surgery, compared to 3 months after surgery, can serve as an indication of tumor recurrence.
Ecological Mechanisms Behind Randomness in Rhizosphere Microbiome
Yingjie Liu
Yuelin Zhu

Yingjie Liu

and 4 more

September 13, 2024
Despite its crucial role in plant health and nutrient dynamics, the spatial heterogeneity of the rhizosphere microbiome has often been overlooked. This study employed a mini-rhizobox approach to investigate spatiotemporal variations in the rhizosphere of pepper plants, analyzing an extensive dataset of 2,185 samples. Our results revealed high spatial variability in bacterial communities within the rhizosphere of individual plants, as indicated by both alpha- and beta-diversity. Stochastic processes were identified as the primary drivers of bacterial community assembly at adjacent points, particularly in secondary roots, whereas deterministic processes exerted more influence in main roots and their junctions with secondary roots. Correspondingly, only 22.3% of generalist ASVs followed skewed Gaussian distributions along root depth. These findings highlight randomness in bacterial taxa along roots. Nonetheless, bacterial richness, as indicated by the log₁₀ transformation of detected ASVs, showed a strong negative correlation with the dominance rate (R² = 0.994). Additionally, a distance-decay relationship was observed, with increasing divergence between the main and secondary roots. These insights advance our understanding of rhizosphere microbial ecology, clarifying the mechanisms underlying the randomness within rhizosphere microbiome.
Lemming and vole cycles: a new intrinsic model
Elizabeth Levay
Helen Nasser

Elizabeth Levay

and 4 more

September 13, 2024
It is 100 years since the first paper described the multiannual cycles in Arctic rodents and lagomorphs. The mechanisms driving population cycles in animals like lemmings and voles are complex, often attributed to extrinsic factors, such as food availability and quality, pathogens, parasites and/or predators. While extrinsic factors provide insights into population cycles, none fully explain the phenomenon. We propose an underlying innate, intrinsic mechanism, based on epigenetic regulation, that drives population cycles under harsh arctic conditions. We propose that epigenetically driven phenotypic changes associated with sexual development, growth, and behaviour accumulate over time in offspring, eventually producing a phase change from rising population density to eventual population collapse. Under this hypothesis, and unlike previous hypotheses, extrinsic factors would modify population cycles but would not be primary drivers. The interaction between our intrinsic cycle and extrinsic factors explains established phenomena like delayed-density dependence, whereby population growth is controlled by time-dependent negative feedback. We advocate for integrating a century of field research with the latest epigenetic analysis to better understand the drivers of population cycles.
Malignant arrhythmia and cardiac arrest following intentional Yew tree leaf ingestion...
William Ries
Muhammad Faisal

William Ries

and 6 more

September 13, 2024
Malignant arrhythmia and cardiac arrest following intentional Yew tree leaf ingestion salvaged by VA-ECMO
HID-AG: Elevating Cybersecurity with HybridIDNet and PCA-AnomalyGuard for Intrusion D...
Balamurugan K
Sudalaimuthu T

Balamurugan K

and 2 more

September 13, 2024
Anomalies in network traffic pose a significant challenge in contemporary cybersecurity. Traditional intrusion detection systems (IDS) often struggle to effectively identify subtle and evolving anomalies indicative of sophisticated attacks. This paper introduces HID-AG, an IDS designed to address prominent challenges in cybersecurity, particularly anomalies. HID-AG, through the integration of HybridIDNet, leverages the combined strength of CNNs, RNNs, and RF to tackle these challenges head-on. The CNN component of HybridIDNet excels in spatial feature extraction, allowing HID-AG to detect anomalies that manifest as intricate patterns in network traffic. RNNs, on the other hand, specialize in capturing temporal dependencies, enabling the system to discern anomalies rooted in the sequential behaviours of cyber threats. The incorporation of Random Forests (RF) adds a layer of interpretability, enhancing the system’s robustness in identifying anomalies across diverse data types. The proposed method, based on HybridIDNet with CNNs, RNNs, and RF, demonstrates an impressive accuracy of 97.84%, signifying its efficacy in handling the complex nature of cybersecurity threats. The Python implementation of HID-AG ensures accessibility and transparency, providing cybersecurity professionals with a practical tool to combat the challenges associated with anomalies in real-world networks. This paper not only delves into the technical details of HID-AG but also presents a comprehensive analysis of its performance in the context of anomaly detection. By addressing challenges posed by anomalies, HID-AG emerges as a proactive cybersecurity solution, contributing to the ongoing efforts to fortify digital infrastructures against sophisticated and nuanced cyber threats. The open-source nature of the Python implementation encourages collaboration and further innovation in the realm of cybersecurity.
A Differential Privacy-Based Approach for Mitigating Data Theft in Ransomware Attacks
Merumu Olabim
Amir Greenfield

Merumu Olabim

and 2 more

September 13, 2024
Ransomware attacks have increasingly shifted toward more sophisticated tactics, not only encrypting critical files but also exfiltrating sensitive data, which is then used as leverage in extortion attempts. Addressing this dual threat, a novel framework integrating differential privacy provides an enhanced layer of protection by ensuring that exfiltrated data remains unusable to attackers through the introduction of statistical noise. This approach uniquely combines differential privacy with traditional security techniques, allowing for a dynamic and adaptable defense mechanism that ensures both data utility and robust privacy guarantees during ransomware attacks. The framework effectively mitigates data theft by applying controlled noise to sensitive datasets, which significantly reduces the probability of successful re-identification, even when auxiliary information is available. Through experimental evaluation, the framework has demonstrated superior performance in balancing privacy, utility, and system efficiency when compared to existing ransomware defense mechanisms. Furthermore, the modular nature of the system allows for seamless integration into existing cybersecurity infrastructures, ensuring that organizations can implement the solution without major architectural changes. Overall, the proposed framework offers a promising advancement in protecting sensitive data from both encryption and exfiltration threats, providing a comprehensive and adaptive approach to modern ransomware challenges.
Electronics and Division Based on The Wavelength of The Output Beam and The Wavelengt...
Afshin Rashid

Afshin Rashid

September 13, 2024
Note: The division is based on the wavelength of the output beam and the wavelength of the output beam of the wide range nano laser. According to this and the wavelength, the types of nano lasers include infrared, visible and ultraviolet lasers, for example, the nano laser  produces a beam with a wavelength of about 858.32 X-rays, the wavelength of a solid nano laser is between 9.6 and 10.6 It is a micrometer. This is because the wavelength of liquid lasers are in the infrared and ultraviolet regions, respectively.Nano lasers work on length scales 1000 times smaller than the thickness of a human hair. The lifetime of the light captured in such small dimensions is so short that the light wave has only a few tens or hundreds of times to move up and down. Nanolasers  open new perspectives for on-chip coherent light sources such as lasers that are extremely small and ultrafast. The performance of nano lasers is based on fast conducting nanoparticles such as silver arranged in a periodic array. Unlike conventional lasers, where laser signal feedback is provided by conventional mirrors, nanolasers use radiative coupling between fast conducting nanoparticles such as silver. These 100 nm particles act as small antennas.To produce high-intensity laser light, the distance between the particles is matched to the laser wavelength so that all the particles in the array are irradiated in unison. Fluorescent organic molecules are used to provide the input energy (gain) required for nano lasers.
Life cycle assessment of photovoltaic systems and storage integration in Somalia: A p...
Abdelhak Lekbir
Abdullahi  Mohamed Samatar

Abdelhak Lekbir

and 4 more

September 13, 2024
In the future, solar energy systems are poised to play an increasingly critical role in addressing climate change, ensuring long-term energy sustainability, driving economic growth, and advancing the sustainable development of countries. This study presents a comprehensive life cycle assessment of installed photovoltaic (PV) systems in Somalia, aligned with economic growth and net-zero carbon emission targets. The evaluation examines the operational conditions across six different locations within the country. Additionally, a comparative analysis is conducted to evaluate the electrical, techno-economic, and environmental impacts of PV systems across these locations. The assessment further incorporates the degradation of PV systems over their life cycle and evaluates the effects of integrating various types of batteries, including Valve-Regulated Lead-Acid (VRLA), Lithium Iron Phosphate (LFP-G), Nickel-Metal Hydride (AB2 and AB5), Nickel-Cadmium (NiCd), Sodium-Sulfur (NaS), and Lithium-Sulfur (LiS). The results indicate that the average electrical output for PV systems in Somalia is approximately 182.49 MWh over their life cycle, with a degradation loss of 1,214.88 kWh and an average payback period of 5.98 years. Furthermore, the average net present cost and levelized cost of electricity were found to be $106,106.7 and $0.194/kWh, respectively. Environmentally, the installed PV systems emit approximately 28.74 tons of CO2 over their life cycle, equivalent to 125 gCO2/kWh produced. The findings also reveal that the integration of batteries increases carbon emissions, with the extent of emissions being dependent on the battery material type. Overall, this study provides a robust scientific framework for future research on PV applications worldwide, particularly in Somalia.
Sustainable Agroforestry Practices in Bangladesh: Innovations, Challenges, and Future...
Mongshathowi Chowdhury
Zahid Hasan Reyad

Mongshathowi Chowdhury

and 1 more

September 13, 2024
This review comprehensively looks at recent advancements and innovations in environmental, economic, and technological perspectives of agroforestry systems in Bangladesh. Agroforestry integrates trees and shrubs into the most basic forms of agricultural landscapes, and provides substantial benefits related to enhanced biodiversity, improvement of soil health, and diversified sources of income. The present review study focuses on the main challenges at stake, which includes technical barriers and policy constraints, and envisages the future research direction to facilitate agroforestry systems. Additionally, the study findings highlight the role of agroforestry in sustainable agriculture and the resilience of ecosystems.
 MTN GHANA: In Half A Decade
Earl Asante

Earl Asante

September 13, 2024
Project OverviewThis project was carried out to assess the financial performance and operational efficiency of Mobile Telecommunication Network (MTN) in Ghana over the past 5 years, with a focus on identifying trends in revenue growth, cost management, customer acquisition and retention strategies, and the impact of regulatory changes on profitability. 1.IntroductionMTN Ghana, a subsidiary of South Africa’s MTN Group, began operations in 1994. It quickly grew by expanding its network and introducing services like prepaid mobile plans. Over the years, MTN Ghana has invested in advanced technologies, including 3G and 4G, and launched MTN Mobile Money. In 2021, it listed on the Ghana Stock Exchange. The company is a leading telecom provider in Ghana, known for its extensive coverage and social impact initiatives. This report hereby presents an in-depth analysis of MTN financial performance from 2019 to 2023. The analysis focuses on key financial metrics, including Revenue, Operating Profit, and Profit After Tax, to evaluate the company’s growth trajectory, operational efficiency, and overall financial health. This report will also provide strategic recommendations based on the observed trends and data variability.2. Financial Metrics OverviewThe following table summarizes the key financial metrics over the five-year period:
Untitled Document
Sinem Başdemir

Sinem Başdemir

September 13, 2024
A document by Sinem Başdemir. Click on the document to view its contents.
The use of Aspartate aminotransferase to platelet ratio index as a predictor of obste...
Noa Leybovitz-Haleluya
Lior YAHAV

Noa Leybovitz-Haleluya

and 5 more

September 13, 2024
Objectives: Hypertensive disorders of pregnancy can lead to significant maternal and neonatal complications. No established tests have a high predictive value for PET severity and adverse outcomes. We aimed to investigate the correlation between the aspartate aminotransferase-to-platelet ratio index (APRI) and adverse outcomes in women with PET. Study design: A population-based cohort study at a tertiary medical center was conducted. Population: The study included all women with singletons between the years 2020 and 2022, with PET diagnosis. Women with incomplete records, multiple gestations, and known fetal malformations were excluded. Methods and setting: The median APRI index was used as a cut-off point, allowing us to compare the risk of complications between those with a low and high APRI index. Main outcome measures: Obstetrical and neonatal complications in women with PET in both groups were studied. Results: The study included 513 women with PET who met inclusion criteria. The median APRI index value was used as a cut-off, resulting in 255 women with an APRI index <0.26 and 258 women with an APRI index > 0.26. A higher APRI index was found to be significantly correlated with having a small for gestational age (SGA) newborn and preterm delivery before 34 weeks after controlling for parity, previous cesarean delivery (CD) and maternal age (adjusted OR 1.60, 95% CI 1.01-2.55; p=0.047 and adjusted HR 1.75, 95%CI 1.12-3.09, p=0.047, respectively). Conclusion: In patients with PET, an APRI index > 0.26 is associated with an increased risk for SGA and preterm deliveries. Funding: This study was not funded.
Assessing UVA and Laser-Induced Crosslinking via Brillouin Microscopy
Christian A. Iriarte-Valdez
Johannes Wenzel

Christian A. Iriarte-Valdez

and 8 more

September 13, 2024
Keratoconus and other corneal ectatic disorders involve the degradation of collagen fibers, which compromises the corneal biomechanical properties. UVA crosslinking has emerged as the primary treatment to slow down collagen degradation. This treatment is limited in both penetration depth and spatial precision, potentially leading to unwanted side effects. This work compares the changes in stiffness of corneas crosslinked with UVA irradiation and a near infrared femtosecond laser, using Brillouin microscopy. The stiffness of the crosslinked regions was mapped in terms of Brillouin frequency shift in three dimensions. UVA crosslinking showed an average increase in Brillouin shift of ~ 100 MHz. We demonstrate targeted spatial and axial corneal femtosecond crosslinking, with similar Brillouin shift values to UVA in crosslinked regions.
Becoming a practitioner, a communicator, and an innovator of biomedicine
Chunsong Hu

Chunsong Hu

September 13, 2024
A search of PubMed for articles published in English up to February 25, 2023, to identify relevant published literature using the search terms “practitioner”, “communicator”, and “innovator”. The author aims to identify what the clinical and/or biomedical scientists as well as scholars & researchers should become, and how to become the advanced practitioners, better communicators, and excellent innovators, so as to better develop the profession and career and better serve medicine and society, and also realize better self-worth. These ideas are helpful in the professional development of young scientists and scholars in the early stage of career. All in all, we should strive to become the advanced practitioners, better communicators of cardiovascular disease (CVD), and excellent innovators as the scholars & researchers, in particular the pandemic and post-COVID-19 era. At the same time, we should strive to work with the abilities and knowledge for human better cardiovascular health and life.
Management of female urethral stricture disease (FUSD) with buccal mucosal graft uret...
Waseem Ashraf
Imran Sultan Sofi

Waseem Ashraf

and 5 more

September 13, 2024
Objective: Female urethral stricture (FUS) is an underreported relatively rare condition, often resulting from a variety of causes. They can result from any process that causes injury to urethral epithelium which can then lead to scarring during the healing process of the injury and subsequent formation of a stricture. We report our experience with urethroplasty in women with urethral stricture with dorsal onlay BMG Urethroplasty which is considered a promising technique in view of anatomical and functional advantages. Design: Retrospective study Setting: Single-centre study conducted at Kanti Devi Medical College and Research Centre, Mathura, Uttar Pradesh, India. Population or Sample: 30 female patients diagnosed with urethral stricture who underwent dorsal onlay BMG urethroplasty between February 2017 and February 2024. Methods: The study involved 30 female patients diagnosed with urethral stricture. Diagnostic methods included patient symptoms, post-void residual urine measurements, uroflowmetry, MCUG, and cystoscopy. The surgical techniques was dorsal onlay BMG Urethroplasty. The indication was those female patients with urethral stricture having failed urethral dilatation more than once. The patients were followed postoperatively at 3, 6, and 12 months and annually for up to five years. Key outcomes were improvement in LUTS, Qmax, post-void residual (PVR) urine, and stricture recurrence. Main Outcome Measures: Improvement in Qmax, PVR urine volume, and stricture recurrence rate. Results: The mean age of the patients was 50.77 ± 6.14 years. Preoperative uroflowmetry showed a mean Qmax of 7.05 ± 1.81 mL/s, which improved significantly to 19.5 ± 2.83 mL/s postoperatively (p < 0.0001). Mean preoperative PVR was 116.07 ± 21.99 mL, which decreased to 29.13 ± 13.09 mL postoperatively (p < 0.0001). The success rate of the procedure was 90%, with a recurrence rate of 10%, managed with self-urethral dilation. No patient developed de novo urinary incontinence. Conclusions: Dorsal onlay BMG urethroplasty is a safe, effective, and technically feasible treatment for FUSD, demonstrating a high success rate and minimal risk of complications.
Targeted Therapy in Psoriasis: A Comparative Study of Secukinumab and Methotrexate in...
Happy Dagar
Monica Gupta

Happy Dagar

and 2 more

September 13, 2024
Background: Psoriasis is a chronic autoimmune disease with limited treatment options in India. Methotrexate is a conventional therapy, while Secukinumab, a human monoclonal antibody against IL-17, is a newer option. Objective: To compare the safety and efficacy of Secukinumab versus Methotrexate in Indian patients with moderate to severe plaque psoriasis. Methods: This open-labeled, randomized, case-controlled study included 14 patients (7 per group) with moderate to severe plaque psoriasis. Group A received Secukinumab, while Group B received Methotrexate. Efficacy was assessed by PASI score reduction at Day 90, and safety was evaluated by laboratory investigations and adverse event reporting. Results: Secukinumab showed improvement in PASI score reduction (PASI 75) compared to Methotrexate (p=0.281). Secukinumab was also found to be safer, with fewer adverse events and no significant changes in laboratory parameters. Conclusion: Secukinumab is a more effective and safer treatment option for moderate to severe plaque psoriasis in Indian patients compared to Methotrexate. Further studies are needed to confirm these findings and establish Secukinumab as a viable treatment option in India.
Self-Supervised Coherence-Based Denoising of Cryoseismological Distributed Acoustic S...
Johanna Zitt
Patrick Paitz

Johanna Zitt

and 4 more

March 25, 2025
A major challenge in cryoseismology is that signals of interest are often buried within the high noise level emitted by a variety of environmental processes. Particular DistributedAcoustic Sensing (DAS) data often suffers from low signal-to-noise ratios (SNR) poten-tially resulting in a multitude of undetected events of interest, which further remain un-analyzed. To record seismicity, we deployed a DAS system on Rhône Glacier, Switzer-land, using a 9 km long fiber-optic cable that covered the entire glacier, from its accu-mulation to its ablation zone. The highly active and dynamic cryospheric environment,in combination with poor coupling, resulted in DAS data characterized by a low SNR.Our objective is to develop and evaluate a method to effectively denoise this cryoseis-mological DAS dataset, while comparing our approach to state-of-the-art filtering anddenoising methods. We propose the J-invariantcryo denoiser, specifically trained on cryo-seismological data and capable of separating incoherent environmental noise from tem-porally and spatially coherent signals of interest, based on a self-supervised J-invariantU-Net autoencoder. The method enhances inter-channel coherence, improves waveformsimilarity with co-located seismometers, and increases SNR. The comparison of differ-ent methods shows that our approach obtains the highest gain in SNR and highest sim-ilarity with co-located seismometers, while suffering from denoising artifacts in rare cases.The proposed denoiser has the potential to enhance the detection capabilities of eventsof interest in cryoseismological DAS data, hence to improve the understanding of pro-cesses within Alpine glaciers.
Epidemiology and Ecology of Different Types of Hemorrhagic Fever with Renal Syndrome...
Xiao Wei
Shaolong Ren

Xiao Wei

and 10 more

September 13, 2024
Hemorrhagic fever with renal syndrome (HFRS) poses a significant public health threat in China, yet its endemic distribution remains poorly defined. In this study, we collected HFRS cases and environmental factors from 2014 to 2018 in China and developed a two-stage ecological machine learning model to investigate the drivers, environment suitability, and potential risk areas of HFRS. Finally, we identified three endemic types, with Type I (HTNV-type dominant) accounting for approximately 16.96% of the total potential risk areas (468,000/2,759,000 square kilometers). Meteorological factors, crop fields, grassland, wetland, rural residential land, and normalized difference vegetation index were the main drivers in these endemic areas. Type II (SEOV-type dominant) risk areas, on the other hand, accounted for around 718,100 square kilometers (26.03%), with HFRS epidemics being primarily associated with the percentage of grassland, wetland, open woodland, rural residential land, urban construction rate, and meteorological factors. Type III(Mixed-type) endemic foci spanned large potential risk areas throughout mainland China, covering approximately 1,572,900 square kilometers (57.01% of the total potential endemic areas). Three HFRS-endemic areas in China varied in epidemic features, ecological drivers, and spatial risk areas. Targeted surveillance and intervention strategies were needed for different endemic areas to control the spread of HFRS.
Free fetal haemoglobin in an early onset fetal growth restriction cohort (EVERREST) t...
Adam Brook
Georgia BAYNES

Adam Brook

and 17 more

September 13, 2024
Objectives: To assess fetal circulating free fetal haemoglobin (fHbF) levels and heme defences, correlated to fetal circulatory biometry and fetal sex in severe early-onset fetal growth restriction. Design, Setting & Population: A prospective study severe early-onset fetal growth restriction pregnancies with close clinical management (EFW<3 rd centile and <600g at 20-26+6 weeks; N=20). Method & Main Outcome Measures: Temporal fetal vascular obstetric biometry was recorded. Cord blood fHbF and key heme-scavenger defences were measured and compared with normal term births (N=26) and births with late-onset FGR (N=12). Results: fHbF was elevated in early-onset FGR compared with normal pregnancy: 0.437(0.337/0.753) mg/mL; P<0.0001; 0.098(0.045/0.264) mg/mL; P<0.0001), respectively; whilst hemopexin was downregulated in early- and late-onset FGR compared to normal pregnancy: 36(14/81) μg/mL, P<0.001; 25(19/40) μg/mL, P<0.0001; 155(132/219) μg/mL, respectively; median(interquartile ranges). Early-onset FGR male fetuses had higher fetal haemoglobin compared with the normal males: 0.710(0.433/0.857) mg/mL; P<0.001; 0.099(0.043/0.246) mg/mL, respectively; median(interquartile ranges). In early-onset FGR, ratios of mid-cerebral artery and umbilical artery pulsatility indices correlated positively with heme-scavenger levels (hemopexin and a heme-handling composite measure: P<0.05 and P<0.01, respectively), indicating lower levels are associated with cerebral vascular redistribution. These heme handling measures also positively correlated with gestational age at delivery (P<0.01, both) and birthweight (P<0.001 and P<0.05, respectively). Conclusion: Free fetal haemoglobin overproduction may be one route to placental vascular compromise in early-onset FGR, implicated in reduced placental and fetal blood flow.
The SWIMMER: a System for underWater Imaging and Monitoring for Marine Environment Re...
E. Scott
Rob Boddington

Elliott Scott

and 4 more

September 13, 2024
The Basking Shark (Cetorhinus maximus) is an elusive creature that possesses a highly-specialized filter-feeding system capable of filtering around two million liters of water every hour. Learning from such filters could be instrumental in making new filtration systems for microplastics or pollutants in the future. However, the specific filtration mechanism, as well as many other aspects of their morphology and behavior, is not well understood. There are numerous difficulties involved with the study of basking sharks, particularly finding the sharks in their ocean habitat and observing them without disturbing them. Here, we present a new open-source robotic platform, the System for underWater Imaging and Monitoring for Marine Environment Research (SWIMMER, SWIM for short), for non-invasive underwater imaging. The robot was designed to produce high-resolution stereo images at both surface level and underwater. The imaging payload is carried by a surface robot to make it easy to monitor, control, and retrieve. The robot is built low-cost and entirely from off-the-shelf components and 3D printing to enable us to scale up the robot to a swarm in the future for imaging from multiple points of view and for other marine applications. To demonstrate the platform, we show its use in recent field trials where we were able to collect video data of 9 different individuals in 6 different encounters, 3 encounters involved 2 sharks, as well as collecting data about its capabilities. This work has the potential to provide new insights into basking shark feeding behavior, as well as potentially making marine swarm robotics more accessible to researchers everywhere due to the low cost and ease of construction of the SWIMMERs.
Understanding Power Distance in Healthcare: A Scoping Review
Anton Kyynärsalmi
Mira Hammarén

Anton Kyynärsalmi

and 2 more

September 13, 2024
Aim . To map the existing research and methodologies used and identify themes of power distance in healthcare. Design . Scoping review. Methods . A systematic search for original studies was conducted on CINAHL, Scopus, PubMed, Web of Science and ProQuest in May 2023. The review was conducted in accordance with the Joanna Briggs Institute’s guidelines for scoping reviews. English, Finnish and Swedish studies with no time limits were included and analysed with narrative synthesis. The Preferred Reporting Items for Systematic reviews and Meta-analyses extension for Scoping Reviews (PRISMA-ScR) was used for reporting. Results . A total of 30 studies were included. All the studies were published between 2004 and 2022. Power distance as a moderator was evident in the research, influencing the relation between other variables. Three distinct themes of power distance in healthcare were identified: interpersonal, intrapersonal and cultural aspects of power distance. Conclusion . Based on current evidence, power distance is an impactful phenomenon in healthcare. Interpersonal, intrapersonal and cultural aspects of power distance illustrate its multilevel effects in healthcare organisations. Power distance has diverse direct and indirect impacts in healthcare and is a valuable framework for describing healthcare’s complex social inequalities. Power distance was directly linked with hierarchy and associated with a lack of collegiality. Implications for practice and research . Awareness and understanding of power distance are valuable for healthcare leadership and research, aiding in the comprehension of employee outcomes, expectations and subtle cultural differences, though further research on power distance in healthcare is needed.
Bithiophene Imide-based Self-Assembled Monolayers (SAMs) on NiOx for High-Performance...
Arulmozhi  Velusamy
Chun-Hsiao  Kuan

Arulmozhi Velusamy

and 10 more

September 13, 2024
Three new bithiophene imide (BTI)-based organic small molecules, BTI-MN-b4 (1), BTI-MN-b8 (2), and BTI-MN-b16 (3) with varied alkyl side chains, were developed and employed as self-assembled monolayers (SAMs) applied to NiOx films in tin perovskite solar cells (TPSCs). The NiOx layer has the effect of modifying the hydrophilicity and the surface roughness of ITO for SAM to uniformly deposit on it. The side chains of the SAM molecules play a vital role in the formation of a high-quality perovskite layer in TPSCs. The single crystal structure of BTI-MN-b8 (2) was successfully obtained, indicating that a uniform SAM can be formed on the NiOx/ITO substrate with an appropriate size of the alkyl side chain. By combining BTI-MN-b8 (2) with NiOx, a maximum PCE of 8.6% was achieved. The TPSC devices utilizing the NiOx/BTI-MN-b8 configuration demonstrated outstanding long-term stability, retaining ~80% of their initial efficiency after 3600 h. Comprehensive characterizations including thermal, optical, electrochemical, and morphological analyses, alongside with photovolatic evaluation, were carried out thoroughly. This study presents a pioneering strategy for improving TPSC performance, highlighting the efficacy of combining organic SAMs with NiOx as HTM and offering a promising pathway for future advances in TPSC technology using a two-step fabrication approach.
A Two-Stage Fine-tuning Approach for Democratizing Multilingual Large Language Models...
Tapumih Cemoge
Alexei Ivanov

Tapumih Cemoge

and 2 more

September 13, 2024
Automating literature review tasks remains a complex challenge due to the vast range of academic disciplines, multilingual data sources, and varying linguistic complexities. Introducing a novel two-stage fine-tuning approach, this research optimizes the performance of Llama through domain-specific instructions followed by multilingual corpus training, significantly improving both accuracy and efficiency in literature review generation. The dual-stage process enhances the model's ability to balance high-resource and low-resource language performance, ensuring scalability across diverse linguistic contexts while minimizing computational costs. Extensive experiments demonstrated the model's superior performance in identifying key research elements, maintaining coherence across languages, and offering a practical solution for multilingual literature synthesis. The outcomes demonstrate the importance of expanding access to advanced models, promoting inclusivity and democratizing their use in global academic research environments.
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