Habitat selection determines an animal’s spatial distribution at various scales. In ground breeding birds, selecting the right nesting location can be decisive for the survival of parents and offspring. Ruffs (Calidris pugnax) are waders with highly divergent sex roles that frequently breed in coastal wetlands of higher latitudes where they often face the threat of flooding and predation. Males aggregate for competitive display to attract females (reeves), who then care for the nest and offspring alone. We investigated which environmental and social cues relate to nest distributions in this threatened wader species. Using nest and lek locations from five breeding seasons we tested whether Ruff nests are randomly distributed across suitable breeding habitat or show some level of aggregation. We then assessed whether leks and nests are spatially associated, i.e., nests are closer located to leks than expected by chance. Finally, we examined whether reeves consider distance to shoreline and meadow edges, two habitat features that are linked to threats such as flooding and predation, for the choice of their nest location. Our results show that nest distribution is non-random, and nests are found closer to leks and other nests than expected by chance. We found nests further away from the meadow edges and shores than expected by chance suggesting that nesting females try to minimize the risk of predation and flooding. We suggest that understanding the social and environmental factors affecting female nest choice can help to improve the management and conservation routines at the breeding sites of these threatened waders. Our results indicate that lekking sites can be used to recognise areas of conservation and management value.

The COVID-19 pandemic, originating in Wuhan, China, in late 2019, swiftly escalated into a global health crisis by March 2020, severely impacting nations worldwide. The World Health Organization (WHO) faced criticism for delayed responses and underreporting, particularly from China, compounded by geopolitical tensions and funding shortages. This constrained the WHO’s ability to effectively manage the pandemic. Additionally, national responses varied significantly, influencing outcomes. Key factors contributing to the state’s failure to address COVID-19 effectively include delayed government actions, governance and leadership failures, poor communication, and inadequate economic support. Early and stringent measures, as demonstrated by New Zealand, resulted in better outcomes compared to countries like Italy and the United States, which experienced severe outbreaks due to delayed responses and inconsistent communication. Governance issues, such as the lack of cohesive strategies and leadership coordination, were evident in countries like Indonesia and Japan, leading to inconsistent policy implementation and poor outcomes. Economic support measures played a critical role in public compliance and economic stability. Countries like the UK provided substantial financial aid, yet disparities in support led to ongoing struggles for low-income families. In contrast, countries in the Global South faced significant challenges in providing adequate economic support, exacerbating existing inequalities and complicating pandemic management. Recommendations for future responses include improving targeted health interventions, enhancing community engagement in policy-making, increasing international financial and technical support, and revising global health treaties to ensure equitable resource access. These steps are essential to build more resilient health systems capable of effectively managing future global health crises.

Reversing Hepatitis B Cirrhosis with a Whole-Food Plant-Based Diet: A Case Report

A document by Li Sun. Click on the document to view its contents.

Objective Currently, there is no adult specific decision aid (DA) to support decision making around recurrent tonsillitis. This study intends to address this gap by piloting a prototype DA. Design Randomised clinical trial Setting Single centre trial at a tertiary otolaryngology department. Participants 43 patients were randomised to either the DA or Treatment as Usual (TAU) group. Main Outcome Measures Primary objective: To measure how patients rate the quality of their decision-making experience at the time of the decision and at follow up (SURE scale). Secondary objective: The level of decisional satisfaction at the time of the decision and at follow up; and to explore the numbers of people opting for surgery from each study condition. (SHARED tool and patient feedback) Results Quality: This study demonstrates no statistically significant difference in the degree by which patients rate the quality of their treatment decision between DA and TAU, both at baseline (P = 0.553) and follow-up (P = 0.062). Satisfaction: This study showed a statistically significant level of decisional satisfaction at the time the decision was made for Qu2 of the shared tool (U = 113, P = 0.026). No other significant difference was found between participants who received the DA and TAU. Conclusion The DA is an acceptable and useful tool which could be incorporated into the pathway for recurrent tonsillitis, helping to eliminate physician implicit bias. However, preliminary qualitative evidence from this pilot study does not suggest that inclusion of the DA improves the quality of decision making.

Key clinical messageWe present a case of Chilaiditi’s syndrome who has had a history of repeated abdominal pain. Chilaiditi’s sign is not rare in radiographic findings and most cases are asymptomatic. Therefore Chilaiditi’s syndrome may be hard to recall as a cause of abdominal pain, leading to possible misdiagnosis.

Objective: The primary objective of our investigation was to perform a comprehensive systematic review, aiming to establish the association between gut microbiota, Immunoglobulin A vasculitis (IgAV), and IgAVN (IgA vasculitis nephritis). Design: A systemic review. Method: A comprehensive review was performed using five electronic databases, including Medline (through PubMed), Scopus, Embase, Cochrane, and Web of Science was conducted from inspection up until 21 March 2023, to detect the studies which assessed the gut microbiota variation in HSP and HSPN patients. Results: Microbial diversity, richness and composition in HSP patients is decreased compared to the healthy control group, also HSP patients display a different microbiota structure and show a significant difference in Taxological abundance between HSP and health control which is differ from one level to another; At the phylum level: Bacteroidetes, fusobacteria and Blastocladiomycota were more abundant, At the class level: Bacteroidetes were more abundant, At the order level: Bacteroidetes were more abundant in the HSP group. Stage and site of HSP involvement effect on microbiota. GIT involvement is characteristic by increase in the abundance of Streptococcus and Fusobacteria and decrease in Faecalibacterium. Kidney involvement is characteristic by increase in the abundance of Streptococcus spp which can be used as indicator of disease severity. Escherichia-Shigella used as diagnostic for recurrence HSP because its abundance is higher than primary HSP. Conclusion: Gut microbiota can be used to detect the severity, recurrency and the site of HSP infection throw its diversity, richness and the abundant of certain microorganism which can be specify for a certain condition.

Transcutaneous auricular vagus nerve stimulation (taVNS) has been shown to influence cognitive and emotional function and enhance interoceptive awareness. This study investigates if taVNS effects extend to the experience of body ownership, as measured via susceptibility to the rubber hand illusion (RHI) in a virtual reality setting. The experiment involved 27 participants who underwent real and sham stimulation in two separate sessions while experiencing synchronous or asynchronous visuo-cardiac and visuo-tactile feedback on a virtual arm in place of their own. Results indicated that active compared to sham taVNS decreased sensitivity to the illusion in both cardiac and tactile trials, suggesting that the stimulation might enhance body ownership, making individuals more attuned to their real bodily signals and less susceptible to bodily illusions. Additionally, physiological measures such as heart rate (HR), heart rate variability (HRV), and skin sympathetic nervous activity (SKNA) were assessed to explore the autonomic effects of taVNS. The findings contribute to the understanding of the vagus nerve’s role in integrating visceral and somatosensory signals, with implications for clinical applications in conditions characterized by altered interoception and body ownership.

Torque Teno virus (TTV) load is linked with the functionality of its host’s immune system and has been proposed as a potential monitoring tool for immune-modulating therapy. However, the immunological mechanisms of TTV control are incompletely understood. To assess the effect of the classical complement pathway on TTV, 64 healthy volunteers and 10 kidney transplant recipients treated with the anti-C1s antibody sutimlimab were analyzed for serum TTV copy numbers (c/mL) by qPCR. Overall, a correlation was observed between the decrease in complement activity caused by sutimlimab and the TTV load increase (ρ = −0.367, p < 0.001). Subgroup analysis indicated a trend toward TTV load increase in healthy volunteers following the highest sutimlimab dose compared to baseline (100 mg/kg body weight; median 3.5 log 10 c/mL, interquartile range [IQR] 2.8–4.4 versus 2.9 log 10 c/mL, 0.8–3.5; p = 0.063). Administering multiple lower doses (30 mg/kg) also showed a trend toward TTV load increase in healthy volunteers (1.8 log 10 c/mL, 0–2.3 versus 1.9, 1.3–2.8; p = 0.054) and a significant increase in transplant recipients (3.5 log 10 c/mL, 3.0–6.1 versus 4.1, 3.5–6.4; p = 0.004). This report suggests a role for the classical complement pathway in controlling TTV load.

Background During the COVID-19 pandemic, we continuously monitored the epidemiology of influenza virus among pediatric patients from January 2021 to December 2023 in Hainan Island, China. Methods In this study, we collected 54,974 nasopharyngeal swab samples for IAV testing and 53,151 samples for IBV testing from pediatric outpatients. Additionally, we also collected 19,687 nasopharyngeal swab samples from pediatric inpatients for IAV and IBV testing. Outpatient samples were screened for IVs infection by the colloidal gold method. Targeted Next-Generation Sequencing (tNGS) was used to detect Influenza virus infections in inpatients. Influenza virus types were identified by analyzing the HA/NA partial regions. Results The findings revealed a decrease in the infection rate of IBV over the specified period, while the infection rate of IAV exhibited a rising trend. Additionally, B/Victoria lineage was the dominant epidemic strain in 2021, while the epidemic strains in 2022 and 2023 underwent a dynamic transformation from A/H3N2 to A/H1N1. Phylogenetic analysis revealed close relationships among the circulating strains. Nonetheless, because the sample size is limited, additional research is required. Conclusion Our findings suggest that the predominant types of influenza viruses in the pediatric population are dynamically changing, and non-pharmaceutical intervention measures can significantly impact the infection rate of influenza.

Graphene-based two-dimensional (2D) materials act as a pivotal role in the area of advanced health, however, there are still some challenges such as controllable formulation and health risks of graphene, and green sustainability assessment of graphene. There is an emerging trend to develop a sustainable graphene-based 2D nanomaterials with biocompatibility, acceptable cytotoxicity, excellent anticoagulant properties, which are capability of accomplishing in vitro and in vivo assays, drug loading, antimicrobials, photochemical therapies, gene therapies, and bio-imaging. This comprehensive review article provides a thoroughly and real-time overview of the main aspects concerning graphene-based 2D nanomaterials and their applications in life and health. Our focus is on the potential risks and hazards of graphene-based 2D materials to the human body, especially in the biological roles of cell membranes, DNA, proteins, enzymes, cells and tissues and organs. In addition, functionalized modifications of graphene-based 2D materials are briefly outlined, and current restrictions and future orientations are considered. In a broader perspective, graphene denotes a conceptually sustainable 2D nanomaterial class and provides a new access point to health and will continue to offer a new horizon of opportunities for its next-generation applications.

A document by Naven Narayanan . Click on the document to view its contents.

Density functional theory (DFT) calculations have been performed to gain insight into the mechanism of hydrocarbonylation of propylene and the origin of regio- and chemoselectivity. It is shown that the most feasible mechanism involves five steps: (i) decomposition of acetic formic anhydride, (ii) hydropalladation of propylene, (iii) CO migratory insertion, (iv) iodide-assisted acetate-formate exchange, and (v) formylation or carboxylation. Importantly, carboxylation proceeds via the decomposition of butyric formic anhydride followed by hydride-butyryloxy reductive elimination instead of the direct hydrolysis of anhydride. With such a mechanism, the apparent barriers of the catalytic cycles are calculated to be around 20.0 kcal/mol, which are consistent with the mild conditions (80 °C) at which the catalytic reactions operate. For phosphine-ligated palladium catalysis, on one hand, linear Pd-alkyl species was formed as the major intermediate through 2,1-hydropalladation, in which transition state suffers weak H···H steric hindrance. On the other hand, the high chemoselectivity for the aldehyde is ascribed to increased π back-donation effect and noncovalent interactions, which stabilize the transition state and hence reduce the energy barrier. For ferrocenyl phosphine-ligated palladium catalysis, the smaller energy span of carboxylation than formylation indicates that carboxylation is preferred for the carboxylic acid releasing.

Abstract Objective: Lung cancer (LC) is well known for its high morbidity and mortality rates. The primary objective of this study was to investigate the synergistic effects of hesperetin (HES), a bioactive compound found in sweet oranges, in combination with cisplatin (CDDP), on LC treatment. Methods: Human A549 and mouse Lewis lung cancer (LLC) cell lines were treated with HES, CDDP, or their combination. Cell viability was assessed using CCK-8 assays. Western blotting evaluated Nrf2 pathway modulation. In vivo, LLC xenografts in C57BL/6 mice assessed tumor growth and kidney function. Results: The combination of HES with CDDP synergistically inhibited lung cancer cell viability in A549 and LLC cells compared to individual treatments (P < 0.05). This synergistic effect was associated with reduced Nrf2 pathway activation, enhancing oxidative stress sensitivity induced by CDDP. In vivo, HES + CDDP treatment significantly suppressed tumor growth in LLC xenograft mice, accompanied by alleviated CDDP-induced kidney injury, indicated by improved histopathology, reduced apoptosis, and restored antioxidant enzyme levels in kidney tissues. Conclusions: Combining HES with CDDP enhances LC treatment efficacy by synergistically inhibiting tumor growth and modulating the Nrf2 pathway. Additionally, HES protects against CDDP-induced kidney injury, suggesting potential benefits in LC treatment strategies.

The purpose is to analyze the clinical features and mortality rates of Chinese acute leukemia patients affected by COVID-19 infection. We retrospectively analyzed the clinical characteristics of acute leukemia patients with COVID-19 infection in Henan Province, China, from December 1, 2022, to January 31, 2023. Our study included 100 cases of acute leukemia with COVID-19 infection. The median age was 49.5 years old (58% male and 42% female). Patients with acute myeloid leukemia were 76%, and 24% were acute lymphoblastic leukemia.86% of patients were asymptomatic; 35% of patients received antibiotic treatment, and 25% received antiviral treatment. For the first time, we analyzed the factors affecting the days of nucleic acid cycle threshold (CT) (CT≤36) in acute leukemia patients infected with COVID-19; the days in severe cases and dead patients was significantly longer. We found that in patients with neutropenia who were receiving antibiotic treatment the days was significantly longer, whereas in patients receiving antiviral treatment or delayed treatment this number was shorter. All patients were followed up for three months, and the overall mortality rate was 6%. Although multivariate analysis showed that no death related factor, univariate analysis showed that neutropenia was the main factor affecting mortality in patients infected with COVID-19. Early application of antiviral drug shorten the number of days of COVID-19 nucleic acid CT value≤36 in AL patients infected with COVID-19, which may further reduce the proportion of patients with severe symptoms or death.

The main objective of this study is to fabricate a control (a standard single junction solar cell grown straight on bare GaAs substrate) and flexible freestanding GaAs-based single junction solar cells (grown on a graphene layer deposited on GaAs substrate). Besides the research work aims to characterize and mathematically simulate the PV cell behavior using COMSOL Multiphysics (version 6). The control PV cell, as a baseline for comparison was epitaxially grown by metal-organic chemical vapor deposition (MOCVD). While remote epitaxy technique in addition to the ‘MOCVD’ method was used to fabricate the flexible freestanding GaAs solar cells. Remote epitaxy technique was employed to reduce the cost of the expensive monocrystalline GaAs substrate and produce flexible solar cells. The electrical properties of the membranes including the current-voltage (I-V) curve, dark current and quantum efficiency were measured experimentally to evaluate how new flexible membranes perform relative to the control (traditional PV cell). The results showed that the power conversion efficiency (PCE) of the fabricated single junction GaAs membranes was about 9% at air mass condition AM1.5 (1000 W/m 2 insolation and 25°C). Therefore, a mathematical simulation by COMSOL and a design of experiment by Minitab were proposed to improve their efficiency. The efficiency of the fabricated GaAs solar cells was enhanced to 19.62% by optimizing the layer thickness and doping. Furthermore, the (I-V) curve, dark current and quantum efficiency of the control solar cell as a benchmark for the flexible membrane was analyzed by COMSOL Multiphysics/Semiconductor physics to compare with the experimental measurements.

An analysis for the impact on seagrass ecosystems of the eutrophic conditions recently reported for the Mexican Caribbean revealed large structural, floristic and community transformations over the last 20 years, but no adverse effects rather photosynthesis stimulation and increases in biomass, leaf area and species diversity. This contrasts with the declining global seagrass trend and the severe deterioration widely documented for adjacent coral reefs. Six meadow’ types and three community phase shifts were identified from oligotrophic conditions until a functional optimum was achieved and slightly surpassed in the northern region. Differences in the minimum light requirements and species’ plasticity for expanding the size of the photosynthetic light collector, explained germane interactions among species and early community transformations in response to habitat fertilisation. Understanding when ecosystem functional optima occur and community transformations beyond that optimality initiate will enable early detection of habitat deterioration (here, eutrophication) and appropriate and timely conservation actions.

Hematopoietic stem cell transplant(HSCT) is the only modality that, if performed in the early- stages of cerebral X-linked adrenoleukodystrophy(X-ALD) can lead to good outcomes. Loes- score, calculated based on the findings of the magnetic resonance imaging(MRI) of the brain, helps in the selection of patients for HSCT. As per recommendations, the Loes-score should be <10 for a patient to be eligible for HSCT. Here we report a child of cerebral X-ALD with Loes of 12, but a good neurological function score(NFS), who was treated with HSCT, and had good outcomes. It is therefore important to utilize other parameters along with the Loes score, in selecting patients for HSCT in X-ALD.

Fusion imaging (FI) technology using Echo-Navigator that integrates live transesophageal echocardiogram (TEE) and overlays on real-time fluoroscopy. We present our experience placing a right ventricular (RV) support device, a ProtekDuo, in our patient with post-operative RV failure using FI to guide the implantation.

This paper describes the clinical and histopathological features of a 16-year-old Cob mare who sustained a hemorrhagic cerebrovascular accident or stroke. The mare presented with an acute onset of neurological signs, with a neuroanatomical localization to the midbrain and thalamus regions. The mare was reported to have suffered from ataxia on all 4 limbs which started 7 days prior to referral, she was also showing several signs of left-sided cranial nerves deficits. On initial examination, the mare presented with quadrilateral ataxia, left-sided facial paralysis, weak tongue tone and a left-sided nose tilt as well as a hemineglect syndrome characterized by an inability to eat food presented on the right side of her mouth. Complete blood count and biochemistry analyses did not reveal any abnormalities, and a standing head CT revealed the presence of a hyperdense lesion localized in the left ventral cortex and thalamus region, which could be consistent with a vascular lesion, cholesterol granuloma or a mass. The mare was monitored, and as her condition slightly improved, she was discharged from the Hospital. Four weeks later, the clinical signs recurred and as the ataxia presented a danger for the mare and anyone handling her, the decision was made to euthanize her. A post-mortem CT scan of the head revealed an enlargement of the previous lesion, and the histopathological examination confirmed the presence of a hemorrhage within the brain, associated with neoplastic emboli. Hemorrhagic stroke has not previously been well described in horses therefore presents a challenge in diagnosis. Treatment in small animals is mainly conservative.

Treatment of Acute Lymphoblastic Leukemia is associated with neurocognitive deficits in young children. While computerized measures have been utilized in pediatric oncology research, they exclude patients below the age of 4 years old. Patients enrolled on “Treatment of Newly Diagnosed Acute Lymphoblastic Leukemia in Children and Adolescents” were offered participation in an optional cognitive study. Three-year old patients did not differ from four-year old patients on their ability to complete tests or perform tests. Including patients diagnosed at age 3 will serve to improve our understanding of at-risk patients and the cognitive trajectory of this age group both during treatment.

Revisiting the issues of manipulation and unauthorized disclosure of traditional electric meter data during transmission, storage, and sharing, this study explores the use of blockchain technology to safeguard grid data privacy. Combine blockchain technology with Paillier homomorphic encryption method to protect and share data privacy; Encrypt the data directly at the end of the smart meter to prevent the data from being maliciously eavesdropped; The encrypted power data at the station is collected by a smart terminal within the station’s vicinity and then sent to the cloud. During its transmission, the encrypted data undergoes hashing and is stored across the connection to safeguard against any unauthorized alterations to the data. To enhance the speed of the encryption and decryption procedures, the modular exponentiation operation from the initial algorithm is broken down by employing the Chinese Remainder Theorem. The test results show that the computing efficiency of encryption and decryption with different key lengths can be increased by 50% to 75% on the premise of security, which can meet the requirements of using ciphertext data directly for dynamic pricing, electricity settlement, and exception analysis.

To address the problems of low stability, poor ride comfort, insufficient safety, and limited suitability for ridge farming in complex terrains like hilly and mountainous regions, a novel wheeled platform is presented featuring variable wheel track, adjustable ground clearance, and lateral attitude levelling. A lateral attitude adjustment method is proposed based on the balance-rocker suspension. This paper presents the principles and configuration of the platform, including its attitude adjustment mechanisms and the variable wheel track mechanism featuring the dual-articulated bridge. A mathematical model is developed to analyze the impact of wheel track and attitude adjustments on the stability of a mobile platform on side slopes. Based on the evaluation method of stability pyramid theory, the lateral stability evaluation index of the platform is derived. The analysis focuses on the impact of the wheel track, changing ground clearance, and lateral attitude levelling on the lateral stability of the platform. The results show that when adjusting the attitude of the body to keep it level, there was a considerable gain in lateral stability, minimum roll angle, and maximum levelling angle at various wheel track and ground clearances. The maximum leveling angle is significantly enhanced, improving from an initial 7.24° to 17.3°. Although a slight reduction in lateral stability is observed, amounting to a 2.82% decrease, the overall performance is markedly improved. Furthermore, the mathematical model proposed here presents optimization guidance and a theoretical framework for the design and control of wheeled platforms with attitude adjustment.

Plant diseases cause an annual global crop loss of 20-40%, leading to estimated economic losses of 30-50 billion dollars. Tomatoes are susceptible to more than 200 diseases. Breeding disease-resistant cultivars is more cost-effective and environmentally sustainable than the frequent use of pesticides. Traditional breeding methods for disease resistance, relying on direct visual observation to measure disease-related traits, are time-consuming, inaccurate, expensive, and require specific knowledge of tomato diseases. High-throughput disease phenotyping is essential to reduce labor costs, improve measurement accuracy, and expedite the release of new varieties, thereby more effectively identifying disease-resistant crops. Precision agriculture efforts have primarily focused on detecting diseases on individual tomato leaves under controlled laboratory conditions, neglecting the assessment of disease severity of the entire plant in the field. To address this, we created a synthetic dataset using existing field and individual leaf datasets, leveraging a game engine to minimize additional data labeling. Consequently, we developed a customized unsupervised domain-adaptive tomato disease segmentation algorithm that monitors the entire tomato plant and determines disease severity based on the proportion of affected leaf areas. The system-derived disease percentages show a high correlation with manually labeled data, evidenced by a correlation coefficient of 0.91. Our research demonstrates the feasibility of using ground robots equipped with deep-learning algorithms to monitor tomato disease severity under field conditions, potentially accelerating the automation and standardization of whole-plant disease severity monitoring in tomatoes. This high-throughput disease phenotyping system can also be adapted to analyze diseases in other crops with similar foliar diseases, such as maize, soybeans, and cotton.