This research investigates the potential of web scraping techniques to optimize decision-making within the e-commerce landscape. By leveraging advanced scraping methods, the project aims to develop a framework that extracts and analyses data from various e-commerce domains. This data will encompass crucial elements like product information and pricing strategies. Through innovative data analysis techniques, the framework will uncover valuable insights and trends, empowering e-commerce businesses to make informed decisions in several key areas. These areas may include optimizing product selection, implementing dynamic pricing strategies, and crafting targeted marketing campaigns. Ultimately, this research seeks to demonstrate how web scraping, when employed ethically and responsibly, can become a powerful tool for e-commerce businesses to gain a competitive edge and enhance their overall decision-making processes.

During magnetospheric substorms, plasma from magnetic reconnection in the magnetotail is thought to reach the inner magnetosphere and form a partial ring current. We simulate this process using a fully kinetic 3D particle-in-cell (PIC) numerical code along with a global magnetohydrodynamics (MHD) model. The PIC simulation extends from the solar wind outside the bow shock to beyond the reconnection region in the tail, while the MHD code extends much further and is run for nominal solar wind parameters and a southward interplanetary magnetic field. By the end of the PIC calculation, ions and electrons from the tail reconnection reach the inner magnetosphere and form a partial ring current and diamagnetic current. The primary source of particles to the inner magnetosphere is bursty bulk flows (BBFs) that originate from a complex pattern of reconnection in the near-Earth magnetotail at xGSM=-18 RE to -30 RE. Most ion acceleration occurs in this region, gaining from 10 to 50 keV as they traverse the sites of active reconnection. Electrons jet away from the reconnection region much faster than the ions, setting up an ambipolar electric field allowing the ions to catch up after approximately 10 ion inertial lengths. The initial energy flux in the BBFs is mainly kinetic energy flux from the ions, but as they move earthward, the energy flux changes to enthalpy flux at the ring current. The power delivered from the tail reconnection in the simulation to the inner magnetosphere is >2x1011 W, which is consistent with observations.

IntroductionHeterotopic pregnancy (HP) is characterized by the existence of intrauterine and ectopic pregnancies occurring simultaneously(1). This is a rare yet serious condition that can be spontaneous or resultant from assisted reproductive technology (ART)(2). While spontaneous HP has a reported frequency of 1 in 50,000 to 1 in 10,000(3, 4), ART-related cases of HP have been estimated to occur in 0.2%-1% of patients(5). Heterotopic Cesarean scar pregnancy (HCSP) involves the occurrence of a Cesarean scar pregnancy (CSP) accompanied by intrauterine pregnancy (IUP), which poses a high risk of catastrophic complications such as uterine rupture and massive hemorrhage(6, 7, 8). An extremely low incidence of HCSP has been reported during spontaneous cycles. Nevertheless, due to the rising occurrence of Cesarean section delivery and the expanding recourse to ARTs, the prevalence of HCSP is anticipated to increase(9, 10, 11). Due to the considerable risk for fetal and maternal morbidity and mortality, timely and precise diagnosis of HCSP is vital(12). The principal investigative approach that holds the greatest significance involves sonographic and Doppler flow-based evaluations(13). In the management of HCSP, preserving the coexistent presents a significant challenge. Guidelines for managing HCSP while preserving the IUP are not universally standardized due to the rarity of this condition(14). The typical method is to terminate the implantation located within the scarred area, if deemed necessary, at the potential expense of terminating the IUP(7). The available literature reveals a range of techniques for managing this condition, with medical and surgical approaches being two distinct options. The surgical interventions, which may involve laparoscopic or hysteroscopic excision of the masses, have been linked with potential complications like the loss of pregnancy and preterm delivery. In our research, we detail a case of HCSP, which was addressed through a combination of exploratory laparotomy and dilation and curettage (D&C) procedures.

Ten novel isocoumarins, including four pairs of enantiomers, were isolated from Artemisia dubia var. subdigitata (Asteraceae). Com-pounds 1, 2 and 3a/3b possessed a unique 6/6/6-tricyclic system comprising an unusual 1-(2-methylcyclohexyl) propan-1-one moiety fused with isocoumarin core skeleton. Compounds 4a/4b were characterized as an unexpected 2,5-dimethylcyclohexan-1-one scaffold, and compounds 5a/5b and 6a/6b were rare 1,2-seco-isocoumarin. Their structures and absolute configurations were elucidated through spectroscopic data, X-ray crystallography, ECD and NMR calculations with DP4+ analyses. Plausible biosynthetic pathways were proposed from the naturally occurring isocoumarin. Network pharmacological analysis suggested that the targets of compound 1 were significantly enriched in the cell cycle and PI3K-Akt signaling pathway. The molecular docking revealed that compound 1 had high binding affinity with CDK2 (total score: 6.8717). Furthermore, compounds 1 and 2 exhibited inhibitory activity on three human hepa-toma cell lines, with inhibitory ratios of 85.1% and 84.5% (HepG2), 88.2% and 87.3% (Huh7), and 69.2% and 69.1% (SK-Hep-1) at 200 μM, respectively.

Experiments have shown that predation risk effects on prey fitness can be highly contingent on environmental conditions, suggesting a potential difficulty in generalizing risk effects on prey abundance in natural settings. We examine this problem with a novel approach. Rather than study the influence of a particular controlled factor, we examined the influence on risk effects of study conditions that would likely be deemed inconsequential, i.e., to factors incidental to a study. If such incidental factors influence can influence the magnitude and even direction of risk effects, this suggests risk effects on prey population density are profoundly influenced by context in natural communities. We compared results of multiple experiments conducted under similar conditions, objectives, measurables and implementation, and which captured much of the complexity of natural systems (e.g., they were performed with diverse prey assemblages (≥11 taxa) over multiple prey generations). There was consistently no risk effect of fish on some zooplankton prey abundance, but great variability effect on other prey including combinations of negative, absent or positive effects on the same prey’s abundance. We review mechanisms that could underlie these results. Our findings highlight the need to understand the mechanisms linking trait responses to fitness and, ultimately, to abundance of prey, to understand risk effects across studies and systems.

Rosa laevigata, being the only species in the Rosa genus within the Rosaceae family, possesses significant nutritional and medicinal value. Moreover, it exhibits a vast genetic diversity, particularly among wild populations. Such abundant genetic variability provides favorable conditions for the cultivation, development, and utilization of superior Rosa laevigata varieties in China. In this research, 265 records of geographic distribution and 47 environmental variables were collected. These data were then combined with the future climate predictions generated by the general circulation model (GFDL-ESM4) and three Shared Socio-economic Pathways (SSP1_RCP2.6, SSP3_RCP7.0, SSP5_RCP8.5) to forecast the current and future geographical distribution of Rosa laevigata. The results indicate a consistently high yield of Rosa laevigata in China, both presently and in the future. The optimal parameter combination, determined by using the corrected Akaike Information Criterion as the index, was selected as the feature class LQ with a regularized multiplier of 1.0. According to these findings, Rosa laevigata is currently distributed across the southern provinces of China, with Chongqing, Sichuan, Guizhou, and Guangxi being the most suitable regions. Furthermore, compared to the current climatic conditions, the growing area of Rosa laevigata is expected to expand in the future. This expansion primarily occurs in a north-western direction, resulting in an overall increase in the plant’s distribution area. Notably, Qinghai experienced a reduction in its low-impact zone area. Several variables such as annual potential evapotranspiration (annualPET), isothermality (Bio3), mean daily maximum air temperature of the warmest month (Bio5), precipitation seasonality (Bio15), and snow cover days (scd), among others, greatly influence the potential distribution of Rosa laevigata.

Massive waste in obstetric prediction research

Recommender systems are effective tools to offer personalized referrals to the Internet users who seek and/or surf for books, movies, restaurants, etc. In this study, we propose and implement a novel hybrid recommender system over Python for online movie platforms. We empirically analyze our system in terms of prediction quality on real movie content and ratings dataset. Our hybrid recommender system gives promising accurate results and is efficient at the same time. We uploaded the entire Python project into GitHub repository.

Phenotypic covariation among suites of traits may constrain or promote diversification both within and between species, yet few studies have empirically investigated this relationship. In this study we investigate whether phenotypic covariation of craniofacial traits is associated with diversification in an adaptive radiation of pupfishes found only on San Salvador Island, Bahamas (SSI). The full radiation of pupfishes includes generalist, durophagous, and lepidophagous pupfish species. We compare phenotypic variation and covariation (i.e., P matrix) between 1) allopatric populations of generalist pupfish from neighboring islands and estuaries in the Caribbean, 2) SSI pupfish populations not containing the full radiation of fishes, and 3) SSI pupfish populations containing the full radiation in sympatry. Additionally, we interrogate the patterns observed in the P-matrices of two independent F2 hybrid crosses derived from the two most morphologically distinct members of the radiation to make inferences about the underlying mechanisms contributing to the variation in craniofacial traits in SSI pupfishes. We found that the P matrix of SSI generalist populations not found in sympatry with specialists exhibited higher levels of mean trait correlation, constraints, and integration with simultaneously lower levels of flexibility compared to generalist populations on other Caribbean islands and sympatric populations of all three species found on SSI. We also document that while many craniofacial traits appear to be produced via additive genetic effects, variation in key traits such as head depth, maxilla length, and lower jaw length may be produced via non-additive genetic mechanisms. Ultimately, this study suggests that differences in phenotypic covariation significantly contribute to producing and maintaining organismal diversity.

A document by Mickaël Machicoane. Click on the document to view its contents.

AIM: Changes in bird clutch and egg sizes across geographical gradients are issues often debated among ecologists, where latitudinal cline is a central issue in several discussions. There is an understanding that these patterns are primarily driven by climatic characteristics, where latitude acts as a proxy. Many studies attempt to analyse local climatic factors causing variation in life history traits but face methodological limitations. Here, as few studies have been able to, we achieve a robust dataset that covers a large territorial extent to answer this main biogeographical question. LOCATION: American continent (New World). METHODS: We approached the geographically widespread Tyrannus genus (kingbirds) and collected breeding data from 35 scientific egg collections in South and Central America, USA, and Europe. After several data checking layers, including spatial, temporal and taxonomic checking, we analysed the relationship between kingbird’s clutch and egg sizes with different climatic scales. RESULTS: The analyses of 1358 clutches and 4750 eggs confirmed that kingbird’s clutch and egg sizes increase towards the poles. Both breeding traits vary according to main climates, regional sub-climates, and local temperature and precipitation conditions. Regions with more climatic variation had the largest clutches, but sites with colder winters did not have the largest clutches. Tyrannus egg size increased in environments with less extreme dry periods. The increase of egg size with latitude can be explained by the significant relationship between larger eggs with sites with lower temperatures. MAIN CONCLUSIONS: Our findings suggest a robust correlation of residual variation in breeding traits with climatic conditions at both regional and local levels. Highly locally adapted species using climatic parameters as cues should also respond to interannual weather variations. With current discussions about climate change’s effects on ecosystems, the insights provided in this work can assist in understanding how species will cope under future climate scenarios.

Investigations into sensory coding in the visual system have typically relied on the use of either simple, unnatural visual stimuli, or natural images. Simple stimuli, such as Gabor patches, have been effective when looking at single neurons in early visual areas such as V1, but seldom produce large responses from mid-level visual neurons or neural populations with diverse tuning. Many types of “naturalistic” image models have been developed recently which bridge the gap between overly-simple stimuli and experimentally infeasible natural images. These stimuli can vary along a large number of feature dimensions, introducing new challenges when trying to map those features to neural activity. This “curse of dimensionality” is exacerbated when neural responses are themselves high-dimensional, such as when recording neural populations with implanted multielectrode arrays. We propose a method that searches high-dimensional stimulus spaces for characterizing neural population manifolds in a closed-loop experimental design. Stimuli were generated using a deep neural network in each block by using neural responses to previous stimuli to make predictions about the relationship between the latent space of the image model and neural responses. We found that these latent variables from the deep generative image model explained stronger linear relationships with neural activity than various alternative forms of image compression. This result reinforces the potential for deep generative image models for efficient characterization of high-dimensional tuning manifolds for visual neural populations.

Land use change (LUC) is a key factor affecting nutrient budgets in agricultural soils. Comparing the long-term trajectories of nutrient budgets and changes in soils at a regional scale with contrasting LUC is critical to optimizing nutrient management and minimizing adverse environmental effects. We investigated the nutrient budgets and changes in soils in two counties in the south Loess Plateau, China, with contrasting LUCs from 1992 to 2017. Wugong County has cereals as the main crop, whereas Meixian County has the main cereal crops changed to kiwi orchards. We found that nitrogen (N), phosphorus (P), and potassium (K) inputs in two counties increased rapidly, and the nutrient outputs by crop harvests remained relatively stable. This resulted in increasing nutrient surpluses in the soils of two counties. Nutrient surplus in the orchard-dominated county was higher than that of the cereal-dominated county, and nutrient use efficiencies were contrasting. High N surplus in the orchard-dominated county resulted in high nitrate-N accumulation in deeper soil profiles of orchards. High P and K surpluses in the two counties significantly increased available P and K in 0-20 cm depth. Soil available P and K in the orchard-dominated county were significantly higher than in the cereal-dominated county, which was also significantly higher than the threshold values of available P and K contents in soils. We conclude that comprehensive measures should be taken to control nutrient surpluses, which will help to balance nutrient inputs and outputs and minimize nutrient losses in intensive horticultural crop systems.

Good ’ s Syndrome Combined withCMVGastro enteritis: A Case Report and Literature ReviewXiaoran li, Yanbin Liu∗Authors Affiliation: Center of Infectious Diseases, West China Hospital of Sichuan University, 37# Guo Xue Xiang, Chengdu 610041,Sichuan , China∗Corresponding author:dr_liuyanbin@foxmail.com

Double-Positive Anti-GBM and ANCA Vasculitis : 2 case reports and review of the literature

In the absence of directing auxiliaries, catalytic addition of nucleophiles to unactivated alkynes with accurate control of regioselectivity remains an ongoing challenge in organic chemistry. Herein, we realized a Ag-catalysed regiospecific hydration process of unactivated al-kynes. Computational investigations offered insights into the origin of the regiochemical outcome. The practicability and efficacy of the protocol was exemplified by its simple reaction conditions without incorporation of acidic additives, as well as the tolerance of a wide range of alkynes equipped with various functional groups, leading to the ketone products in up to 98% yield. Direct modification of bioac-tive organic molecules and gram-scale experiments further showcased the application potential of the strategy. The catalyst control prin-ciples are expected to advance efforts towards the development of general site-selective addition of nucleophile to unsaturated sub-strates, removing the requirement for neighboring activating groups.

We aimed to assess the epidemiological characteristics of hepatitis B virus (HBV) infection in Chinese adults at different phases of the coronavirus disease 2019 (COVID‐19) pandemic, that is, before, during the pandemic, and after the easing of restrictive measures. We included 20,357 adult patients who visited Mianyang Hospital and had hepatitis B DNA tests from January 1, 2018, to June 30, 2023. Clinical information and HBV test results were extracted from the laboratory information system. We calculated the positive rate of HBV detection by age groups, gender, seasons, types of patients, and stages of the COVID‐19 pandemic. Nonlinear associations between age and risk of HBV infection in three stages of the pandemic were assessed by restricted cubic spline regression models. Among 20,357 patients, 2,670 (13.1%) were tested as positive. The highest positive rate was observed in the 18-25 age group (i.e., 16%). HBV infection showed an insignificant pattern among seasons. Although there is no statistical significance regarding the positive rate at three phases of the pandemic, we observed that the rate went high during the pandemic and saw a sharp decline after easing the measures among the population ( p < 0.05), which consisted of our regression models. In addition, regression analyses suggested that the age effect became weaker after easing all restrictive measures compared with other stages. Based on our findings, we called for attention from health professionals and caregivers on the new epidemiological characteristics of HBV infection in advance to deal with the potential increase under restrictive measures.

Solvation, the result of the complicated interplay between solvent-solute and solvent-internal interactions, is one of the most important chemical processes. Consequently, a complete theoretical understanding of solvation seems a heroic task. However, it is possible to elucidate fundamental solvation mechanisms by looking into simpler systems, such as ion solvation in atomic baths. In this work, we study ion solvation by calculating the ground state properties of a single ion in a neutral bath from the high-density regime to the low-density regime, finding common ground for these two, in principle, disparate regimes. Our results indicate that a single $^{174}$Yb$^+$ ion in a bath of $^{7}$Li atoms forms a coordination complex at high densities with a coordination number of 8, with strong electrostriction, characteristic of the snowball effect. On the contrary, treating the atomic bath as a dilute quantum gas at low densities, we find that the short range of the ion-atom interaction plays a significant role in the physics of many-body bound states and polarons. Furthermore, in this regime, we explore the role of a putative ion trap, which drastically affects the binding mechanism of the ion and atoms from a quantum gas. Therefore, our results give a novel insight into the universality of ion-neutral systems in the ultracold regime and the possibilities of observing exotic many-body effects.

Abstract Aim As the population continues to age, the occurrence of chronic illnesses and comorbidities that often necessitate the use of polypharmacy has been on the rise. Polypharmacy, among other factors that tend to coincide with chronic diseases such as obesity, impaired kidney and liver function, and older age, can increase the risk of medication errors (MEs). Our study aims to evaluate the prevalence of MEs in the Internal medicine, Cardiology, and Neurology departments at the secondary level university hospital. Methods We conducted a prospective observational study of 145 patients electronic or paper-based data of inpatient prescriptions and patients’ pharmacokinetic risk factors, such as an impairment of renal and/or hepatic function, weight, and age. Results All included patients collectively received 1252 prescribed drugs. The median (Q1; Q3) number of drugs per patient was 8 (7;10). At least one ME was identified in 133 out of the 145 patients, indicating a significantly higher prevalence than hypothesized (91.7% vs. 50%; p < 0.001). There was moderate, positive correlation between the quantity of prescribed drugs and the number of MEs, meaning that the more drugs are prescribed, the higher the number of identified MEs (Spearman’s rho = 0.428; p < 0.001). Conclusion These findings suggest that there is a need of continuous medication education activity for prescribing physicians, continuous evaluation of prescription appropriateness to objectively identify the MEs, and to contribute to more rational patient treatment.

Letter to the Editor: Excellent response to treatment with hydroxychloroquine in pediatric patients with SLE-related immune thrombocytopenia Aimen Waqar Khan1, Shireen Asifa2, Fatima Monis1, Fareena Wazir3 and Iqra Muneer2AFFILIATION : 1Department of Medicine, Jinnah Sindh Medical University, Karachi, Pakistan.2Department of Medicine, Dow University of Health Sciences, Karachi, Pakistan. 3Department of Medicine, Sir Syed College of Medical Sciences for Girls, Karachi, Pakistan.Dear Editor,We have read with great enthusiasm your study titled “Excellent response to treatment with hydroxychloroquine in pediatric patients with SLE-related immune thrombocytopenia ” by Brik-Simon et al [1]. It was truly an honor to read such a detailed and methodical study that explored the platelet count response and safety of hydroxychloroquine (HCQ) in treating pediatric patients with systemic lupus erythematosus (SLE) related immune thrombocytopenia (ITP). However, after critical appraisal, we believe that certain points warrant discussion in order to alert clinicians and researchers regarding the conclusions drawn.As noted, platelet count response was the main metric outcome in assessing the safety and efficacy of HCQ. While this is pertinent to evaluating how well the said drug manages pediatric ITP, we believe other metrics like quality of life, long-term prognosis, and bleeding severity could offer a more thorough assessment of therapy efficacy [2]. Secondly, it is to be acknowledged that although no side effects linked to HCQ medication were reported, the short follow-up period and retrospective design may have hampered proper safety evaluation. It is therefore important to closely monitor and report long-term safety data on the use of HCQ in pediatric patients including potential eye damage and cardiomyopathy [3]. Furthermore, as females made up the vast majority of patients recruited, the study does not clearly elucidate whether the platelet count was measured keeping menstrual variability in mind and if so, whether the time of measurement was kept constant throughout. It is important to have done so as studies have demonstrated inter-menstrual variability in platelet counts attributable to the physiological changes in hormonal levels [4]. In addition to the number of platelets, we believe bleeding severity should have also been included. Moreover, females have been physiologically reported to have higher platelet counts than men [5] – an important confounder that must be borne in mind. Also, adherence to therapy in this study was assessed by self-reports. When it comes to adherence to medications by self-reports, there are concerns over the validity of the results due to memory recall biases and a tendency to overestimate the patient’s routine in taking the medication. There can also be differences in question phrasing and recall time intervals [6] therefore raising doubts over the validity of the findings reported. Finally, the duration of ITP at HCQ initiation is also different for patients, ranging from .75 to 52 months. Studies have shown that in up to 70-80% of children ITP usually resolves within 6 months [7].To conclude, while we commend the authors’ efforts in conducting this study, we believe addressing the aforementioned limitations will greatly help enhance the credibility of the findings and guide future researches in providing a more refined insight into this topic.

Background: Huashi Baidu granule (HSBD), an approved herbal formula for treating COVID-19, demonstrates safety and efficacy. Despite its market approval, the detailed methodology and identification of its active components remain unexplored, leaving its bioactive constituents and action mechanisms unclear. Methods: This study investigated the potential mechanisms of HSBD’s active ingredient in treating COVID-19. Our approach integrated various techniques, including the GEO database, network pharmacology, surface plasmon resonance, molecular docking and molecular dynamics simulations, to formulate a comprehensive research strategy. Results: The UHPLC-QqQ-MS/MS method employed for HSBD analysis proved stable, reliable, and reproducible. We identified 25 principal components in HSBD, with seven compounds detected in plasma, namely pogostone, p-hydroxybenzoic acid, Paeoniflorin, Rhein, Emodin, ephedrine hydrochloride, and pseudoephedrine hydrochloride. Protein-Protein Interaction (PPI) network analysis identified MMP9 as a pivotal target, while KEGG pathway analysis indicated that HSBD mediates its therapeutic effects on COVID-19 primarily through the TNF-α and PI3K-AKT pathways. Surface plasmon resonance analysis revealed that Paeoniflorin and Rhein exert their antiviral effects by interacting with RBD and ACE2, respectively. In contrast, Emodin’s antiviral mechanism predominantly involves binding to MMP9. Molecular docking results indicated strong binding affinities of Rhein and Paeoniflorin to the hACE2 protein, and high binding affinities of Paeoniflorin, Rhein, and Emodin to the MMP9 protein, all of which were corroborated by molecular dynamics simulations. Conclusion: We investigated the methodology and identified the active components of HSBD, focusing on those absorbed into the plasma, to elucidate the effective material basis of HSBD in the treatment of COVID-19, our research offer insightful exploration into its mechanisms of action against COVID-19.

Practical Challenges Associated with Efanesoctocog Alfa (ALTUVIIIO) Prophylaxis in a 19-month-oldwith Severe Hemophilia AJessica N. Mistretta1, Maria G. Español1,2, Michael D. Tarantino1,2, Dane C. Christ1, Maureen D. Jones1,Jonathan C. Roberts1,21Bleeding & Clotting Disorders Institute, Peoria IL USA2Departments of Pediatrics and Medicine, University of Illinois College of Medicine at Peoria, Peoria, IL USA

Systemic Lupus Erythematosus Associated with Erythema Multiforme : A Rare Case Report of Rowell’s Syndrome

Mild photothermal therapy (MPTT) generates therapeutic effect at the temperature below 45 ℃, which has the advantages of controllable treatment efficacy, reduced drug dosage, lower hyperthermia temperatures, and minimize damage to healthy tissues. MPTT can kill tumor cells at lower temperatures by blocking heat shock proteins (HSPs) expression without harming nearby healthy cells. Despite significant progress in MPTT, it remains primarily in the stages of basic and clinical research and has not yet seen widespread clinical adoption due to several technical challenges. In this review, we provide a comprehensive overview of the recent development of MPTT, emphasizing its anti-tumor mechanisms, the characteristics of commonly used photothermal agents (PTAs), and their biomedical applications. Specifically, we address the key obstacles facing MPTT and propose potential solutions, and explore the status of MPTT combined with other anti-tumor therapies and discuss its broader applications in areas such as anti-infection, obesity treatment, and vascular disease treatment. Finally, we look ahead to future research directions in MPTT, aiming to further enhance its efficiency and safety while developing new strategies for high-efficiency MPTT.