bluuebunny/crossref_metadata_2025_split huggingface dataset:
Intrinsic and environmental factors modulating autonomous robotic search under high uncertainty
Authors: Garcia-Saura Carlos , Serrano Eduardo , Rodriguez Francisco B. , Varona Pablo 
Published: December 2021

AbstractAutonomous robotic search problems deal with different levels of uncertainty. When uncertainty is low, deterministic strategies employing available knowledge result in most effective searches. However, there are domains where uncertainty is always high since information about robot location, environment boundaries or precise reference points is unattainable, e.g., in cave, deep ocean, planetary exploration, or upon sensor or communications impairment. Furthermore, latency regarding when search targets move, appear or disappear add to uncertainty sources. Here we study intrinsic and environmental factors that affect low-informed robotic search based on diffusive Brownian, naive ballistic, and superdiffusive strategies (Lévy walks), and in particular, the effectiveness of their random exploration. Representative strategies were evaluated considering both intrinsic (motion drift, energy or memory limitations) and extrinsic factors (obstacles and search boundaries). Our results point towards minimum-knowledge based modulation approaches that can adjust distinct spatial and temporal aspects of random exploration to lead to effective autonomous search under uncertainty.
Country-level factors dynamics and ABO/Rh blood groups contribution to COVID-19 mortality
Authors: Monaco Alfonso , Pantaleo Ester , Amoroso Nicola , Bellantuono Loredana , Stella Alessandro , Bellotti Roberto 
Published: December 2021

AbstractThe identification of factors associated to COVID-19 mortality is important to design effective containment measures and safeguard at-risk categories. In the last year, several investigations have tried to ascertain key features to predict the COVID-19 mortality tolls in relation to country-specific dynamics and population structure. Most studies focused on the first wave of the COVID-19 pandemic observed in the first half of 2020. Numerous studies have reported significant associations between COVID-19 mortality and relevant variables, for instance obesity, healthcare system indicators such as hospital beds density, and bacillus Calmette-Guerin immunization. In this work, we investigated the role of ABO/Rh blood groups at three different stages of the pandemic while accounting for demographic, economic, and health system related confounding factors. Using a machine learning approach, we found that the “B+” blood group frequency is an important factor at all stages of the pandemic, confirming previous findings that blood groups are linked to COVID-19 severity and fatal outcome.
Coordinated 3D spectrum utilization for B5G indoor HetNets: A collaborated crowdsensing approach
Authors: Li Xiaohui , Zhu Qi , Yu Tianqi , Wang Xianbin 
Published: December 2021

AbstractThe 5G and beyond (B5G) networks are expected to provide significantly increased capacity for diverse services with limited spectrum resources. However, new aspects of B5G networks particularly the ultra‐dense network deployment and the heterogeneous network structure, make spectrum resources highly distributed in three‐dimension (3D), which brings unprecedented challenges for highly efficient spectrum utilization, especially in an indoor environment. To tackle the challenges on dynamic spectrum utilization and improving the volume capacity of indoor 3D networks, a collaborated crowdsensing approach is proposed for the coordinated 3D spectrum utilization through integrating the crowdsensing, data analytics, and software defined network (SDN) techniques. The integration of sensing, learning, and intelligent control provides critical capabilities for timely observing 3D radio resources and enabling the coordinated radio resource utilization among co‐existing indoor heterogeneous networks (HetNets). Case study confirms the superiority of the proposed coordinating method on achieved volume capacity.
Segmented transmission delay based decoupling for parallel simulation of a distribution network
Authors: Wei Songtao , Gu Wei , Liu Wei , Zou Dehu 
Published: December 2021

AbstractThe introduction of inverters and power electronic devices increases the amount of calculation needed for electromagnetic transient simulation in distribution networks with a high proportion of distributed generation. Hence, the parallel calculation of electromagnetic transient simulation has become an effective way to improve its efficiency. To realize efficient parallel simulation, a method to decouple transmission lines in the distribution network based on the segmented transmission delay model is proposed, which divides the line into two segments according to different transmission delays. The transmission delay of one segment is an integral multiple of the simulation step used for line decoupling, whereas the other segment is a lumped parameter model, which makes it equivalent to the original line. In addition, an interface for the distribution network based on the segmented transmission delay model is designed and implemented, and the decoupling simulation of a distribution network is performed. Finally, using the simulation examples of IEEE 34 and IEEE 123 node test feeders, the proposed decoupling method is compared with other established methods. It is found to be more accurate and efficient as well as more suitable for the parallel computation of a distribution network simulation than the comparison methods.
A Survey Report on Rise in Respiratory Illnesses Due to Air Pollution and Its Homoeopathic Management
Authors: Raizada Sonia , Shukla Indu 
Published: December 2021

Abstract
Background and Objectives Every year just when monsoon starts retreating, we start seeing adverse meteorological conditions for dispersion. There are multiple factors that lead to higher pollution levels, including industrial and motor vehicle emissions, crop stubble burning and burning of fire crackers during Diwali period.The novel human coronavirus disease 2019 (COVID-19) pandemic has claimed more than 1,090, 921 lives worldwide, causing tremendous public health, social and economic damages. While the risk factors of COVID-19 are still under investigation, environmental factors, such as urban air pollution, may play an important role in increasing population susceptibility to COVID-19 pathogenesis. Long-term exposure to NO2, which largely arises from urban combustion sources such as traffic, may enhance susceptibility to severe COVID-19 outcomes, independent of long-term particulate matter 2.5 and O3 exposure. Prolonged exposure to this urban traffic-related air pollutant may be an important risk factor of severe COVID-19 outcomes.A survey was done in 2019 during the pre- and post-Diwali period to assess the increase in number of cases reported with various respiratory troubles.
Methods A cross-sectional survey was done on patients coming with respiratory problems in the outpatient department of the hospital in year 2019 for 10 days prior to Diwali (Group 1) and 10 days after Diwali (Group 2). Patients presenting with respiratory ailments were figured out during this time period and this data was analysed.
Results In Group 1, the number of respiratory complaints' patients was 238 (i.e. 7.9%) which raised to 378 (i.e. 11.9%) in Group 2 patients.
Conclusion This study showed that there was a sharp rise in patients of upper respiratory tract infections reporting in the hospital (Group 2) and results of homoeopathic medicines in treating those complaints was encouraging.
The Phases of Hahnemann's Medical Practice
Authors: Morrell Peter 
Published: December 2021

AbstractUsing data from his casebooks, this study explores the medical practice of Hahnemann with a focus on his changing use of medicines and potency. This study also identifies several phases in his use of medicines that connect with his ongoing programme of new provings. This study also reveals that only when he had chanced upon the antipsoric medicines, he did stop changing his medicines. Similarly, data taken from the casebooks reveal changes in his use of potency and the development of his unique method of preparing medicines as he experimented with higher and higher potencies as his career progressed.
Emergency Transcatheter Arterial Embolization for Acute Mediastinal Hemorrhage
Authors: Ling Gonghao , Zhou Jun , Ding Xun , Long Qingyun 
Published: December 2021

Abstract
Purpose The aim of this study was to investigate the application value of transcatheter arterial embolization (TAE) for mediastinal hemorrhage.
Materials and Methods The study retrospectively analyzed the status of TAE treatment in 13 patients with mediastinal hemorrhage.
Results Aortic angiography and bleeding artery angiography showed that the bleeding in 13 mediastinal hemorrhage patients, respectively, originated from intercostal artery, esophageal artery, or bronchial artery. All patients were embolized with gelatin sponge and (or) polyvinyl alcohol particles. Chest computed tomography scan found that all 13 patients showed reduced range of mediastinal hematoma after TAE.
Conclusion TAE has the advantages of reduced trauma, rapid and direct hemostasis, and solid therapeutic effects in the treatment of mediastinal hemorrhage.
An Overview on Adult Acne, Its Pathogenesis, Clinical Presentation, Treatment and Scope in Homoeopathy
Authors: Sharma Rashmi , Dewan Deepti 
Published: December 2021

AbstractAdult acne is defined as a presence of acne beyond the age of 25 years. Two main subtypes can be identified: persistent acne and late-onset acne (beginning after the age of 25 years), which are responsible for 80 and 20% of cases, respectively. Women have a high prevalence and incidence when compared with men. Hyperandrogenism is the main aetiology associated with acne in this age group. Stress-related worsening of acne is a common complaint. Due to the visibility of acne, it is known to have psychosocial impact that can influence person's perceptions regarding their self-appearance, resulting in poor quality of life. Adult acne is often refractory to treatment as older skin presents increased irritancy to topical applications and has potential for bacterial resistance. Treatment failures with antibiotics occur in up to 80% of adult women. Antiandrogens are associated with the risk of feminisation of male foetus, hepatotoxicity, hyperkalaemia etc. Isotretinoin which is given in severe cases is proved to be potent teratogen. In this backdrop, there has been a need for gentle and effective way of treatment, and homoeopathy has the answer. Homoeopathy has a holistic approach having the general acceptance and compliance amongst masses; it has been considered safe in pregnancy and during lactation period. Further, no bacterial resistance develops after prolonged use of homoeopathic medicines. Earlier studies conducted signify the action of homoeopathic medicines in the treatment of adolescent acne with effective results. Not many studies have focused or conducted on the adult acne. This review suggests conducting the future research studies on adult acne through homoeopathic medicine.
Management of a Suspected Case of Gallbladder Cancer with Individualised Homoeopathy: A Case Report
Authors: Singh Lalith , M. Kanagavali , Rija Maga , Manoharan Raja 
Published: December 2021

Abstract
Background India has a highest incidence of gallbladder cancer (GBC) and contributes 10% of global GBC burden. The risk of GBC increases with age. The first peak of GBC occurs at 50 to 60 years and second peak at 70 to 80 years. In this article, the authors have presented a suspected case of GBC in a male patient of 65 years. Radiological reports also show presence of gallstones in this case. Studies show that four out of five persons with GBC have gallstones when they are diagnosed. The patient had pain in right upper abdomen, weight loss for few months, liver function test was highly altered and a space-occupying lesion was found in the gallbladder on radiological investigation. Patient was receiving treatment in a private medical college and hospital where computed tomography (CT) scan and magnetic resonance cholangiopancreatography detected gallbladder mass . Age of the patient, significant weight loss, presence of gallstones, abnormal liver function test and gallbladder mass have raised a suspicion of gallbladder cancer. Patient was advised for CT-guided biopsy by doctors of private hospital, but patient did not go for biopsy because of his belief that biopsy may worsen malignancy. Patient came to National Institute Homoeopathy for homoeopathic treatment to avoid biopsy and surgery.
Method After proper case taking and repertorisation, a constitutional medicine Carcinosin was prescribed in Q-potency. Patient was kept under follow-up for more than a year and the patient is still under treatment. During treatment different potency of Carcinosin was prescribed in ascending scale.
Results During the course of treatment, significant clinical, radiological and biochemical and pathological improvement has occurred.
Conclusion Homoeopathy is among the commonly used alternative approaches in cancer. It is being widely used as palliative and curative care in patients suffering from cancer. Though studies on the use of homoeopathy in cancer after surgery, radiotherapy and chemotherapy have been reported, clinical trials on effects of homoeopathy in cancer are rare. In this case report, a suspected case of GBC was treated by higher homoeopathic dilution with significant improvement.
Patterns of Psychological Distress and Well-Being among Adults in Relation to Gender during COVID-19 Pandemic
Authors: Arora Ameya , Sharma Pankhuri , Verma Nitin Kumar 
Published: December 2021

AbstractCoronavirus disease-2019 (COVID-19) pandemic has led to the worsening of mental health of people in terms of increased psychological distress and decreased psychological well-being. The study was designed to understand the influence of COVID-19 pandemic on psychological distress and well-being. Present study also explored the variances in psychological distress and well-being in relation to development stages (young adulthood and adulthood), gender (males and females), people who had been infected by coronavirus and those not infected, and respondents whose immediate family members/relatives/friends/classmates had been infected by coronavirus and those not infected. An online survey was conducted in the midst of the pandemic. Responses of 250 respondents were gathered and analysed using the General Well-being Questionnaire developed by Veit and Ware in 1983. The results indicated that COVID-19 pandemic played a significant role in determining psychological distress and well-being. Gender differences in psychological distress and well-being are present with males being high on psychological distress and females being high on psychological well-being. Adults were found to be high on psychological distress than young adults. It was also revealed that as a person (respondent himself/immediate family/friends/relatives) becomes infected and recovers, their psychological distress declines, and well-being increases, probably because of reduced fear of being infected again. Along with other demographic variables, developmental stages and gender differences also played a crucial role in psychological distress and well-being of adults.
Thermodynamic reassessment of Au–Pt–Sn system
Authors: Hu Jieqiong , Xie Ming , Chen Yongtai , Fang Jiheng , Zhang Qiao 
Published: December 2021

Abstract
Au–Pt–Sn alloys are a novel class of materials with promising catalytic properties. This study provides updated information on phase equilibrium structures and thermodynamics of the Au–Pt–Sn ternary system. The formation enthalpies of Au–Sn and Pt–Sn binary subsystems were predicted by first principles calculations and these values were further refined by CALPHAD method. The results obtained accurately reproduced the experimental data. The reassessed phase diagram of the Au–Pt–Sn ternary system accurately described the phase composition of several Au–Pt–Sn alloys, which is essential for further modifications of these materials.
Adsorption performances and electrochemical characteristics of methyl blue onto magnesium-zinc ferrites
Authors: Xu Shuping , Liu Dandan , Liu Aihua , Sun Fu , Pan Shengying , Ouyang Hezhong 
Published: December 2021

Abstract
A novel and facile rapid combustion approach was developed for the controllable preparation of small size and easy recovery magnesium-zinc ferrites for methyl blue (MB) removal in dye solution. The effects of prepared criteria of x value, calcination temperature, and the amount of ethanol on the average grain sizes and magnetic property were reviewed. The characterization results displayed that Mg0.5Zn0.5Fe2O4 nanoparticles met the expectations of the experiment at the calcination temperature of 400 °C with absolute ethanol volume of 20 ml, and they were selected to remove MB. The adsorption process belonged to chemical adsorption on the basis of the pseudo-second-order model. The electrochemical characteristics of MB onto the prepared nanoparticles were analyzed by cyclic voltammetry (CV). The influences of pH and cycle times on the removal efficiency were investigated. When the pH went beyond 3, the removal efficiency of MB onto the magnetic Mg0.5Zn0.5Fe2O4 nanoparticles maintained above 99%,the maximum adsorption capacity was 318.18 mg g−1. After seven cycles, the relative removal rate of MB remained 96% of the first one.
Racial/Ethnic and Geographic Trends in Combined Stimulant/Opioid Overdoses, 2007–2019
Authors: Townsend Tarlise , Kline David , Rivera-Aguirre Ariadne , Bunting Amanda M , Mauro Pia M , Marshall Brandon D L , Martins Silvia S , Cerdá Magdalena 
Published: December 2021

AbstractIn the United States, combined stimulant/opioid overdose mortality has risen dramatically over the last decade. These increases may particularly affect non-Hispanic Black and Hispanic populations. We used death certificate data from the US National Center for Health Statistics (2007–2019) to compare state-level trends in overdose mortality due to opioids in combination with 1) cocaine and 2) methamphetamine and other stimulants (MOS) across racial/ethnic groups (non-Hispanic White, non-Hispanic Black, Hispanic, and non-Hispanic Asian American/Pacific Islander). To avoid unstable estimates from small samples, we employed principles of small area estimation and a Bayesian hierarchical model, enabling information-sharing across groups. Black Americans experienced severe and worsening mortality due to opioids in combination with both cocaine and MOS, particularly in eastern states. Cocaine/opioid mortality increased 575% among Black people versus 184% in White people (Black, 0.60 to 4.05 per 100,000; White, 0.49 to 1.39 per 100,000). MOS/opioid mortality rose 16,200% in Black people versus 3,200% in White people (Black, 0.01 to 1.63 per 100,000; White, 0.09 to 2.97 per 100,000). Cocaine/opioid overdose mortality rose sharply among Hispanic and Asian Americans. State-group heterogeneity highlighted the importance of data disaggregation and methods to address small sample sizes. Research to understand the drivers of these trends and expanded efforts to address them are needed, particularly in minoritized groups.
Stability of 1-unit/mL insulin aspart solution in cyclic olefin copolymer vials and polypropylene syringes
Authors: Henry Heloise , Gilliot Sixtine , Genay Stephanie , Barthélémy Christine , Décaudin Bertrand , Odou Pascal 
Published: December 2021

Abstract

Purpose
This study evaluated the stability of diluted insulin aspart solutions (containing insulin aspart and preservatives) at their most commonly used concentration in intensive care units (1 unit/mL), in 2 container types: cyclic olefin copolymer (COC) vials and polypropylene (PP) syringes.

Methods
Insulin aspart solution (1 unit/mL, diluted in 0.9% sodium chloride injection) was stored for 365 days in COC vials with gray stoppers and PP syringes at refrigerated (5°C ± 3°C) and ambient temperatures (25°C ± 2°C at 60% ± 5% relative humidity and protected from light). Chemical testing was conducted monthly using a validated high-performance liquid chromatography method (quantification of insulin aspart, phenol, and metacresol). Physical stability was evaluated monthly via pH measurements, visible and subvisible particle counts, and osmolality measurements. Sterility testing was also performed to validate the sterile preparation process and the maintenance of sterility throughout the study.

Results
The limit of stability was set at 90% of the initial concentrations of insulin aspart, phenol, and metacresol. The physicochemical stability of 1-unit/mL insulin solutions stored refrigerated and protected from light, was unchanged in COC vials for the 365-day period and for 1 month in PP syringes. At ambient temperature, subvisible particulate contamination as well as the chemical stability of insulin and metacresol were acceptable for only 1 month’s storage in PP syringes, while insulin chemical stability was maintained for only 3 months’ storage in COC vials.

Conclusion
According to our results, it is not recommended to administer 1-unit/mL pharmacy-diluted insulin solutions after 3 months’ storage in COC vials at ambient temperature or after 1 month in PP syringes at ambient temperature. The findings support storage of 1-unit/mL insulin aspart solution in COC vials at refrigerated temperature as the best option over the long term. Sterility was maintained in every condition. Both sterility and physicochemical stability are essential to authorize the administration of a parenteral insulin solution.
Taylor Sun Flower Optimization-Based Compressive Sensing for Image Compression and Recovery
Authors: R Sekar , G Ravi 
Published: December 2021

AbstractThe most prominent challenges in compressive sensing are seeking the domain where an image is represented sparsely and hence be faithfully recovered to obtain high-quality results. This paper introduces an approach for image compression and recovery. The proposed approach involves two phases: the initial step is the compression phase, and the second step is the recovery phase. Initially, the medical image is subjected to the compression module wherein the self-similarity and the 3-dimensional (3D) transform are adapted for compressing the image. Then, in the recovery phase, the compressive sensing recovery is performed based on structural similarity index measure (SSIM)-based collaborative sparsity measure (S-CoSM), and the novel optimization algorithm, named Taylor-based Sunflower optimization (Taylor-SFO) algorithm. An effective S-CoSM measure is designed by modifying the CoSM using the SSIM metric. The proposed Taylor-SFO will be designed by integrating the Taylor series with the sunflower optimization (SFO) algorithm. The performance of the proposed Taylor-SFO approach is evaluated for matrices SSIM of 0.9412 and peak signal to noise ratio of 57.57 dB.