shorten abstract. Objective: Evaluate clinical significance of 25(OH)D, IL-10, and Treg cells in peripheral blood of thyroid nodule patients. Methods: Studied 78 new thyroid nodule cases and 46 healthy individuals. Analyzed blood samples for 25(OH)D, calcium, IL-2, TNF, IFN-γ, IL-4, IL-5, IL-10, and Treg cells. Results: Thyroid nodule group had lower mean 25(OH)D levels than controls (P <0.05). Thyroid cancer had lower IL-5 than nodular goiter (P <0.05) and thyroid adenoma (P <0.05). Nodular goiter had higher IFN-γ than thyroid adenoma (P = 0.061) and thyroid cancer (P = 0.099). Treg cell levels differed significantly between nodular goiter/thyroid cancer and thyroid adenoma (P <0.05). In thyroid cancer subgroup, negative correlation observed between IL-10 and 25(OH)D (r = -0.45, P<0.05); tendency for negative correlation between Treg cells and 25(OH)D (r = -0.32, P>0.05). Conclusion: Peripheral blood 25(OH)D may relate to thyroid nodule incidence. Vitamin D may influence tumor immune regulation. Decreased 25(OH)D levels observed in nodular goiter and thyroid cancer vs. normal control. Increased Treg cells observed in nodular goiter and thyroid cancer vs. thyroid adenoma. Lower IL-5 found in thyroid cancer. Negative correlation noted between IL-10 and 25(OH)D in thyroid cancer.

Background: Inflammation affects labor by influencing contractions and dilation. Pain, often linked to tissue ischemia, involves mediators like TNF-α, substance P (SP), and nitric oxide (NO). Neuraxial analgesia, including combined spinal epidural analgesia (SEA) with levobupivacaine, is preferred for its effectiveness and minimal side effects in painless labor. This study investigates these effects in parturients undergoing SEA with levobupivacaine, contributing to the development of novel pain medications and enhancing obstetric care. Methods: This study was conducted at Permata Hati Metro Hospital in Indonesia. 60 expectant mothers in active labor or in the third trimester scheduled for vaginal delivery were enrolled. Blood serum samples were collected for analysis, and to be processed by ELISA KIT for determining serum levels of TNF-α, SP, and NO. Results: Following treatment, there were no significant differences in TNF-α levels between groups before and after treatment (p > 0.05). Although no significant difference in SP levels was noted before treatment, a significant difference was evident after treatment (p < 0.05). Moreover, a significant reduction in NO levels was observed in the SEA group compared to the control group (p < 0.05). SEA significantly relieved labor pain compared to the control group (P < 0.05), accompanied by notable improvements in vital signs and APGAR scores and labor duration (P < 0.001). Conclusion: SEA with levobupivacaine during painless labor demonstrates a trend of decreasing TNF-α and SP levels while significantly reducing NO levels. Although some mediators did not show significance, clinical benefits were found in patients and babies.

Background COVID-19 is an ongoing pandemic posing a big threat to public health and economy. Novel variants are constantly emerging with different transmissibility and pathogenicity. This study aimed to explore the hematological characteristics of COVID-19 delta variant during the outbreak in July 2021, Nanjing. Methods This study retrospectively analyzed demographic and clinical parameters of 80 patients diagnosed with COVID-19 delta variant infection. Patients were classified into mild, moderate and severe/critical group according to the guideline. Characteristics of each group were compared. Results The percentage of elderly and patients with comorbidities was significantly higher in the severe/critical group. Vaccination rate was significantly lower in this group. Decreased lymphocyte number, especially CD4+ and CD8+ T cells, elevated fibrinogen, CRP, PCT and IL-6 were associated with disease severity (P<0.05). Severe or critical cases tended to have higher viral load shown by lower CT values of ORF1ab and N gene (P=0.08, P=0.06) and lower specific IgG antibody level (P=0.15) but it did not reach statistical significance. Conclusions Increasing vaccination rate in the elderly and population with comorbidities might improve the prognosis of COVID-19 delta variant. Mechanism study of immune evasion of COVID-19 and methods to booster our immune system was urgently needed.

Dry eye disease (DED) represents a prevalent visual ailment, defined by insufficient wetting and lubrication of the ocular surface. The principal management strategy for dry eye involves the application of artificial tear solutions to mitigate eye discomfort. Moreover, immune-modulating agents such as cyclosporine A and tacrolimus (FK506) are employed in the therapeutic regimen for this condition. These drugs regulate the immune response and reduce ocular inflammation. Tacrolimus (TAC) is 10-100 times more effective than cyclosporine and has a better safety profile. Nevertheless, the modest aqueous solubility and substantial molecular size of TAC present obstacles to its efficient administration to the eye. Consequently, a range of TAC formulations including ointments, micelles, liposomes, and nanocarriers are under exploration to enhance ocular delivery. Findings from this investigation indicated that TAC impedes the secretion of pro-inflammatory cytokines and dampens immune activity by restraining the activation of T and B lymphocytes. Furthermore, TAC elevates goblet cell populations in the conjunctiva, pivotal for mucin production and the preservation of ocular surface integrity. Additionally, using TAC-loaded liposomes can further enhance its therapeutic efficacy by improving ocular bioavailability. Furthermore, 0.03% TAC eye drops applied directly to the eye successfully improve tear film stability and the health of the eye’s surface in patients with DED. Overall, TAC has shown promising effects in treating DED by reducing inflammation and improving tear secretion in experimental and clinical studies. However, more studies are needed to fully understand the mechanism of action and long-term effects of TAC on DED.

A document by Rauno Harvima. Click on the document to view its contents.

Multi-arm harvesting robots offer a promising solution to the labor shortage in fruit harvesting, due to their ability to improve harvesting efficiency. However, multi-arm harvesters necessitate additional visual sensors to acquire distribution information of fruits within larger working spaces. Greater demands are consequently imposed on graphics computation, leading to increased costs in computing hardware of robot system. To balance the graphics computing cost and reduce energy consumption, distributed graphics computation frameworks for multi-arm robot vision system are proposed in this study. First, a host-edge framework is proposed to assign the tasks of image inference and depth alignment to host computer and edge computing modules through a decentralized mode of local connection. Moreover, to increase the endurance time of robot in application, the edge computing modules are reduced and the fifth generation mobile communication is integrated into robot graphics computing system to transfer on-board image processing to a remote computing server with MQTT protocol. To verify the effectiveness of the proposed framework, comprehensive experiments were performed, demonstrating that, compared with traditional computing framework, the proposed local distributed framework reduced 35.6% average time consumption, and over 20 FPS average processing speed can be achieve. The remote distributed framework has reduced the computational power consumption of the on-board system by approximately 23.1% while ensuring the performance is not lower than the local distributed framework. Finally, by discussing the two frameworks in terms of stability and cost, we present the commercial viability for the application of multi-arm harvesting robot.

Background Several clinical trials have shown that nirsevimab, an antibody targeting the respiratory syncytial virus (RSV), reduces RSV-bronchiolitis requiring admission. In 2023-2024, Catalonia and Andorra adopted immunization strategies for children < 6 months and those born during the epidemic season. This study evaluates the effectiveness of nirsevimab in preventing hospitalizations from RSV bronchiolitis. Methods In the epidemic season of 2023-2024, a test-negative case-control study was conducted in three hospitals from Catalonia and Andorra. Patients <12 months old admitted with bronchiolitis and tested for RSV using molecular microbiology tests were included. The effectiveness in preventing RSV-bronchiolitis hospitalization and severe disease was estimated using multivariate models. Comparisons between immunized, non-immunized and non-eligible patients were made in prospectively collected epidemiological, clinical, and microbiological variables. Results 234 patients were included. RSV was detected in 141/234(60.2%), being less common in the immunized group (37% vs 75%, p<0.001). The rate of immunized patients among those eligible was 59.7%. The estimated effectiveness for RSV-associated lower respiratory tract infection was 81.0% (95% confidence interval: 60.9-90.7), and for preventing severe disease (the need for NIV/CMV), 85.6% (41.7-96.4%). No significant differences by immunization status were observed in patients with RSV concerning viral co-infections, the need for NIV/CMV or length of hospital stay. Conclusions This study provides real-world evidence of the effectiveness of nirsevimab in preventing RSV-LRTI hospitalization and severe disease in infants during their first RSV season following a systematic immunization program. Immunized patients did not exhibit a higher rate of viral co-infections nor differences in clinical severity once admitted.

Background: Basophil activation test (BAT) or the mast cell activation test (MAT) are two in vitro tests that are currently being studied in food allergy as diagnostic tools as an alternative to oral food challenges (OFCs). We conducted a meta-analysis on BAT and MAT assessing their specificity and sensitivity in diagnosing peanut allergy. Methods: Six databases were searched for studies on patients suspected of having peanut allergy. Studies using BAT or MAT to peanut extract and/or component as diagnostic tools with results given in percentage of CD63 activation were included in this meta-analysis. Study quality was evaluated with the QUADAS-2 tool. Results: On the eleven studies identified, eight focused exclusively on children, while three included a mixed population of adults and children. Only one study provided data on MAT, precluding us from conducting a statistical analysis. The diagnostic accuracy of BAT was higher when stimulated with peanut extract rather than Ara h2 with a pooled specificity of 96% (95% CI: 0.89-0.98) and sensitivity of 0.86 (95% CI: 0.74-0.93). The sensitivity and specificity of BATs in discriminating between allergic and sensitized patients was studied as well with pooled analysis revealing a sensitivity of 0.86 (95% CI: 0.74; 0.93) and a specificity of 0.97 (95% CI: 0.94, 0.98). Conclusion: BATs, when stimulated with peanut extracts, exhibit a satisfactory sensitivity and specificity for the diagnosis of peanut allergy and can help to discriminate between allergic individuals and those only sensitized to peanut. More investigations on the potential for MATs diagnostic methods are warranted.

Test Driven Development (TDD) stands out as a widely adopted agile methodology, considered foundational in agile software improvement. It emphasizes simplicity and significantly contributes to elevating both code quality and overall productivity. This post provides a comprehensive overview of TDD, highlighting its significance and pivotal role within the broader framework of agile practices.IntroductionOne of the key aims of software engineering is to assist developers in generating high-quality software. Due to the considerable expense of software development, it is crucial to implement measures that enable efficient and effective resource utilization. Various development practices contribute to this objective; among them, software testing holds significant importance. In the conventional “Test Last” development approach, the creation of test cases becomes pivotal for verification and validation. These tests are formulated once the target product has been implemented.In contrast, Test Driven Development stands out as an agile software development practice that prioritizes a test-first approach, addressing both design and testing. TDD involves incrementally creating automated unit test cases for small portions of selected functionality before implementing the production code. The core concept behind TDD is not solely about testing the software; instead, it assists the programmer throughout the entire development process by addressing requirements without ambiguity.TDD LifecycleUnderstanding the essence of Test-Driven Development (TDD) and its practical implementation is crucial. TDD involves a straightforward four-step process:Write a test that fails: Before writing any code for a specific function, such as a method to calculate tax, the initial step is to create a test for the functionality and the minimum amount of code necessary to run the test effectively. This marks the initiation of every TDD test and is considered a fundamental starting point.Write code to enable the test to pass: In this phase, the developer proceeds to implement the functionality required for the test to pass. During code writing, it is common to run the test intermittently to identify which part of the code is functional.Refactor the code: Typically performed after the test passes, refactoring aims to make the code more concise and precise.Repeat: The programmer or developer repeats the steps for each functionality they intend to implement.The TDD life cycle commences with ideation on how to test the desired functionality. Automated test cases are written, often without even compiling, and the programmers then create implementation code to pass these test cases. The work remains under the programmer’s mental control, with continuous small implementation decisions and a gradual increase in functionality. All test cases for the entire application must pass before the new code is considered fully implemented.Rules of TDDCertain guidelines for Test Driven Development include:1. Writing production code is only permitted when it is necessary to make a failing unit test pass.2. The creation of a unit test is limited to the minimum required to fail, with compilation failures considered failures.3. Elaborating on a unit test is constrained to the minimum necessary to induce failure, and again, compilation failures are deemed as failures.A Simple TDD ExampleLet’s consider a simple use case of adding two numbers.Step 1: Write a test case that fails.Public class AddTest {@TestPublic void testAddNumbers() {Adder adder = new Adder();int result = adder.add(2, 3);assertEquals(5, result);}}Step 2: Run the test.The test will fail because it attempts to instantiate a non-existent class called Adder.Step 3: Write the minimum code to pass the test.Public class Adder {Public int add(int a, int b) {return a + b;}}Step 4: Run the test again.Now when you run the test it should pass since the Adder class and add method have been implemented.Step 5: Refactor (If needed).Frameworks for TDDJUnitJUnit is a framework designed for unit testing in Java, serving as an open-source tool. Java developers utilize JUnit for creating automated tests, and the framework supports the re-execution of tests when new code is integrated. JUnit provides a visual representation of test progress, with a green graph indicating successful tests and a red graph denoting failures.TestNGTestNG, another testing framework, is suitable for test-driven development and draws inspiration from JUnit and NUnit. It introduces novel functionalities to enhance its capabilities and appeal to software testers.RSpecRSpec is a testing tool tailored for Ruby, specifically created for behavior-driven development (BDD). Widely used as a testing library for Ruby in production applications, RSpec boasts a rich domain-specific language (DSL).NUnitNUnit is an open-source unit testing framework designed for .NET applications. Originally derived from JUnit, NUnit is commonly used for unit testing in Microsoft .NET environments. It supports running tests through various means, such as a command-line runner, Visual Studio with a Test Adapter, or third-party runners.TDD Best PracticesAvoid Partial AdoptionEnsuring the successful implementation of Test-Driven Development (TDD) requires a commitment to avoiding partial adoption. Opting for a comprehensive adoption of TDD guarantees consistent adherence to its principles and results in the creation of code that is both reliable and maintainable.Create Tests Before Writing CodeInitiating the development process by crafting tests before writing code is a fundamental TDD practice. Starting with a failing test encourages developers to focus on the intended achievements of the code, fostering a deliberate and purposeful development process.Automate TestingAutomation plays a pivotal role in effective TDD implementation. Automated testing tools empower developers to execute tests swiftly and consistently, enhancing the overall reliability of the software.Keep Code SimpleCode simplicity is a guiding principle in TDD, advocating for easily readable, understandable, and maintainable code. Developers are encouraged to write the minimum code necessary to pass a test.

The re-emergence of the monkeypox virus (MPXV) three years after the start of the SARS-CoV-2 epidemic further emphasizes the need to develop broad spectrum antivirals (BSAs) that might control the spread of poorly understood pathogens. The induction of innate immune responses to a viral infection triggers rapid expression of type-I-interferon (IFN-I), which subsequently results in the differential expression of more than 300 genes that foster an antiviral state. Whereas the expression of a majority of these “interferon-stimulated genes” (ISGs) are enhanced, , other ISGs’ expression are suppressed, including some involved in lipid metabolism which is hijacked to promote viral growth. Herein, we report that the expression of fatty acid synthase (FASN), an enzyme involved in de novo biosynthesis of fatty acids, was significantly reduced upon MPXV infection. Moreover, MPXV infection was impaired in FASN knockout cells, and biological inhibitors of FASN significantly inhibited MPXV. Interestingly, the ISG chosterol-25-hydroxylase was induced in MPXV-infected cells, and its enzymatic product, 25-hydroxychlosterol (25HC), blocked MPXV infection. Overall, this study indicates that 25HC and FASN inhibitors are highly potent BSAs and may have therapeutic applications in combating understudied infectious diseases in early outbreak settings when targeted therapies have not yet been developed.

Introduction to Li-Fraumeni Syndrome Li-Fraumeni Syndrome (LFS) is a rare, inherited disorder that significantly increases the risk of developing several types of cancer, often at a young age. First identified by Drs. Frederick Li and Joseph Fraumeni in 1969, LFS is caused by mutations in the TP53 gene, which encodes a protein crucial for regulating cell division and preventing tumor formation. When this gene is mutated, its tumor-suppressing function is compromised, leading to a predisposition for various cancers.

A document by Jonas Noeland . Click on the document to view its contents.

Fundus photography (FP) is a crucial technique for diagnosing the progression of ocular and systemic diseases in clinical studies, with wide applications in early clinical screening and diagnosis. However, due to the non-uniform illumination and imbalanced intensity caused by various reasons, the quality of fundus images is often severely weakened, brings challenges for automated screening, analysis and diagnosis of diseases. To resolve this problem, we developed strongly constrained generative adversarial networks (SCGAN). The results demonstrate that the quality of various datasets were more significantly enhanced based on SCGAN, simultaneously more effectively retaining tissue and vascular information under various experimental conditions . Furthermore, the clinical effectiveness and robustness of this model was validated by showing its improved ability in vascular segmentation as well as disease diagnosis. Our study provides a new comprehensive approach for FP and also possesses the potential capacity to advance artificial intelligence-assisted ophthalmic examination.

In May 2024, the city of Porto Alegre, southern Brazil, experienced the worst flood in recorded history. Extensive damage occurred despite large flood control measures, such as levees and floodwalls, implemented after the last great flood, in 1941. Wide-swath satellite altimetry, as provided by the NASA/CNES SWOT mission, revealed distinct flooding patterns. In the braided Jacuí river, flooding was aggravated by the backwater effect across a choked section. The wider Guaíba River experienced smaller water levels and slopes. Stream gradient increased dramatically, from 0.4 cm/km to 15 cm/km. We have validated the satellite maps with in situ GNSS hydrographic surveys as well as three water level stations employing GNSS Interferometric Reflectometry. Results suggest flood control could be improved in the north region of the city. Levees failed where water levels were a few meters higher than that experienced at the same time in other regions of the city.

Wireless Sensor Networks (WSNs) are composed of numerous sensor nodes, each equipped with the ability to sense, collect, and analyze data within the physical environment they are deployed in. These nodes, operating on limited battery power, face significant challenges in maximizing network lifespan. Integrating conventional Wide Local Area Network (WLAN) techniques into WSNs can notably enhance performance. While the LEACH routing algorithm is widely employed to optimize energy efficiency in WSNs, it has inherent limitations. This study proposes enhancing the LEACH protocol by incorporating sectoring and Code Division Multiple Access (S-LEACH-CDMA) for inter-cluster communication and cluster head (CH) to base station (BS) communication. In the proposed technique, the network is divided into sectors where nodes form clusters, and those not in clusters can send their data directly to the BS. CDMA facilitates simultaneous data transmissions from multiple cluster heads to the base station, thereby increasing throughput and mitigating energy wastage due to collisions. Sectoring the network ensures balanced energy consumption and reduced interference by evenly distributing cluster heads and organizing the network geographically. These enhancements lead to notable improvements in network performance. The evaluation of S-LEACH-CDMA, S-LEACH, and LEACH is conducted through simulations using two different scenarios. The results show that the S-LEACH-CDMA protocol significantly increased network lifetime compared to LEACH. Specifically, for a small number of nodes, S-LEACH-CDMA achieved a lifetime improvement of 24%, while for a larger number of nodes, the improvement reached 28%. Additionally, as the number of sensors increases, the network lifetime of S-LEACH-CDMA continues to improve, making it suitable for large-scale deployments with high data traffic demands.

A document by Kenji Yamada. Click on the document to view its contents.

The goal was to evaluate the hysteresis performance of segmented buckling resistant braces with low yield point steel LYP160, the monotonic tensile and cyclic loading tests of LYP160 were conducted and the corresponding laws have been obtained. According to the load-displacement curves of the specimen, the low yield point steel was characterized by good ductility and energy absorption ability. With the consideration of Chaboche model on the materials, the cyclic loading was simulated by ABAQUS and the cyclic hardening parameters of low yield point steel were obtained. On this basis, the hysteretic properties of buckling resistant braces under cyclic loads were simulated and analyzed. After the analysis and comparison of buckling resistant braces specimens with isotropic core plate and segmented variable section core plate, it can be found that: When the buckling resistant braces with isotropic core plate was loaded to L/100, the lateral deformation of BRB would reach 17mm and the seriously squeezed would observe on lateral constraint members. The buckling resistant braces would fail due to the accumulation of deformation on lateral constraint members at both ends of BRB. When the segmented buckling resistant braces was applied, the core plate with variable section would yield first in the middle part, other parts could still continue to consume energy due to the action of the limit plate. It would avoid the phenomenon that other parts could not continue to consume energy after the core plate failed at one point first. Under the action of cyclic loads, the stiffness of the segmented buckling resistant brace was constant and the better ability to consume energy was reflected.

Shobith Suresh ** Correspondence: shobithsuresh9747@gmail.com; Phone: +919074149418List of contents1. Introduction- Overview of rotavirus: its structure, classification, and significance.- Historical background: discovery and early research on rotavirus.2. Epidemiology- Global prevalence and distribution of rotavirus infections.- Age-specific incidence rates and seasonal patterns.3. Virology- Structure and genome organization of rotavirus.- Mechanisms of replication and pathogenesis.- Variability and classification of rotavirus strains.4. Clinical Manifestations- Symptoms and signs of rotavirus infection.- Complications and associated syndromes.- Impact on vulnerable populations (e.g., infants, immunocompromised individuals).5. Diagnostic Methods- Laboratory techniques for the detection and identification of rotavirus.- Challenges and limitations in diagnosis.6. Preventive Strategies- Vaccination programs: efficacy, coverage, and impact on disease burden.- Hygiene and sanitation measures.- Role of breastfeeding and nutrition in prevention.7. Treatment and Management- Supportive care for rotavirus-associated gastroenteritis.- Pharmacological interventions: antiviral agents, antiemetics, rehydration therapy.- Management of complications and severe cases.8. Evolution of Rotavirus Vaccines- Development and licensure of rotavirus vaccines.- Vaccine formulations and immunization schedules.- Vaccine safety and effectiveness: post-marketing surveillance data.9. Economic and Social Impact- Burden of rotavirus disease on healthcare systems and society.- Cost-effectiveness of vaccination programs.- Socioeconomic disparities in access to prevention and treatment.10. Emerging Trends and Future Directions- Evolutionary dynamics of rotavirus strains.- Potential for novel therapeutic approaches (e.g., antiviral drugs, probiotics).- Challenges and opportunities in global rotavirus control efforts.11. Conclusion- Summary of key findings and implications for public health practice.- Recommendations for future research priorities.Abstract:Rotavirus remains a significant global health threat, particularly affecting children under five years of age. This comprehensive review examines various aspects of rotavirus, including its virology, epidemiology, clinical manifestations, diagnostic methods, treatment, preventive strategies, and emerging trends. Rotavirus is a leading cause of severe gastroenteritis, responsible for substantial morbidity, mortality, and economic burden worldwide. The development and widespread implementation of rotavirus vaccines have led to significant reductions in rotavirus-associated morbidity and mortality, but challenges such as vaccine access and the emergence of new rotavirus strains persist. Moving forward, continued investment in research, surveillance, and public health interventions is essential to further reduce the global burden of rotavirus disease. Addressing gaps in vaccine coverage and effectiveness, understanding the evolutionary dynamics of rotavirus strains, and strengthening healthcare systems are critical priorities for achieving sustained progress in rotavirus control. This review underscores the importance of collective action in combating rotavirus and emphasizes the need for continued vigilance and innovation in the fight against this formidable pathogen.Keywords: Rotavirus, gastroenteritis, children, vaccination, epidemiology, virology, diagnosis, treatment, prevention, public health, global burden, emerging trends, challenges, evolution, surveillance, healthcare systems.Chapter 1: IntroductionRotavirus is a leading cause of severe gastroenteritis, particularly in infants and young children worldwide. This chapter provides an overview of rotavirus, including its structure, classification, and significance in public health.1.1 Overview of RotavirusRotavirus belongs to the Reoviridae family and is a non-enveloped, double-stranded RNA virus. It is recognized as the primary etiological agent of acute gastroenteritis in children under the age of five globally, responsible for an estimated 128,500 deaths annually worldwide according to recent estimates (Tate et al., 2016).1.2 Historical BackgroundRotavirus was first discovered in the mid-20th century by electron microscopy of diarrheal stool samples from children with gastroenteritis. Subsequent research efforts led to the identification of multiple antigenically distinct serotypes of rotavirus, classified into various genogroups based on the amino acid sequences of the outer capsid proteins (Estes & Greenberg, 2013).1.3 Importance in Public HealthThe significance of rotavirus lies in its high morbidity and mortality rates, particularly in low- and middle-income countries where access to healthcare and sanitation facilities may be limited. Rotavirus infections can result in severe dehydration and electrolyte imbalances, leading to hospitalization and, in some cases, death, especially among vulnerable populations such as malnourished children or those with compromised immune systems (Parashar et al., 2016).As such, understanding the epidemiology, virology, clinical manifestations, and preventive strategies for rotavirus is essential for mitigating its impact on public health.References:Estes, M. K., & Greenberg, H. B. (2013). Rotaviruses. In D. M. Knipe & P. M. Howley (Eds.), Fields virology (6th ed., Vol. 2, pp. 1347–1401). Lippincott Williams & Wilkins.Parashar, U. D., Burton, A., Lanata, C., Boschi-Pinto, C., Shibuya, K., Steele, D., & Birmingham, M. (2016). Global mortality associated with rotavirus disease among children in 2004. The Journal of Infectious Diseases, 194(Suppl. 1), S70–S76.Tate, J. E., Burton, A. H., Boschi-Pinto, C., Parashar, U. D., & World Health Organization–Coordinated Global Rotavirus Surveillance Network. (2016). Global, regional, and national estimates of rotavirus mortality in children <5 years of age, 2000-2013. Clinical Infectious Diseases, 62(Suppl. 2), S96–S105.Chapter 2: EpidemiologyThis chapter provides an in-depth examination of the epidemiology of rotavirus, including its global prevalence, distribution, age-specific incidence rates, and seasonal patterns.2.1 Global Prevalence and DistributionRotavirus infection is endemic worldwide, affecting both developed and developing countries. However, the burden of disease is disproportionately higher in regions with limited access to clean water, sanitation, and healthcare facilities. Recent estimates suggest that rotavirus is responsible for approximately 37% of severe diarrhea cases requiring hospitalization among children under five years of age globally (GBD Diarrhoeal Diseases Collaborators, 2017).2.2 Age-Specific Incidence RatesRotavirus gastroenteritis primarily affects infants and young children, with the highest incidence observed in those between 6 and 24 months of age. Children in developing countries are often infected at an earlier age compared to their counterparts in developed nations, likely due to differences in exposure to the virus and maternal antibody levels (Lanata et al., 2013).2.3 Seasonal PatternsSeasonal variations in rotavirus activity are commonly observed, with peaks occurring during the cooler months in temperate climates and the rainy season in tropical regions. These patterns are thought to be influenced by factors such as temperature, humidity, and social behaviours that facilitate viral transmission (Patel et al., 2013).Understanding the epidemiology of rotavirus is crucial for implementing targeted prevention and control measures, including vaccination campaigns and improvements in water and sanitation infrastructure.References:GBD Diarrhoeal Diseases Collaborators. (2017). Estimates of global, regional, and national morbidity, mortality, and aetiologies of diarrhoeal diseases: A systematic analysis for the Global Burden of Disease Study 2015. The Lancet Infectious Diseases, 17(9), 909–948.Lanata, C. F., Fischer-Walker, C. L., Olascoaga, A. C., Torres, C. X., Aryee, M. J., & Black, R. E. (2013). Global causes of diarrheal disease mortality in children <5 years of age: A systematic review. PLoS ONE, 8(9), e72788.Patel, M. M., Pitzer, V. E., Alonso, W. J., Vera, D., Lopman, B., Tate, J., & Viboud, C. (2013). Global seasonality of rotavirus disease. The Pediatric Infectious Disease Journal, 32(4), e134–e147.Chapter 3: VirologyThis chapter delves into the virology of rotavirus, covering its structure, genome organization, mechanisms of replication, and pathogenesis.3.1 Structure of RotavirusRotavirus is a non-enveloped virus with a distinctive triple-layered capsid structure. The outer capsid is composed of two proteins, VP4 (protease-sensitive protein) and VP7 (glycoprotein), which determine the serotype and are the primary targets of neutralizing antibodies. The intermediate capsid layer contains VP6, which plays a role in viral assembly and stability, while the inner capsid houses the viral genome and replication machinery (Estes & Greenberg, 2013).3.2 Genome OrganizationThe genome of rotavirus consists of 11 segments of double-stranded RNA encoding six structural proteins (VP1-VP4, VP6, VP7) and six non-structural proteins (NSP1-NSP6). These segments are enclosed within the viral capsid and are replicated by the viral RNA-dependent RNA polymerase (Estes & Greenberg, 2013).3.3 Mechanisms of Replication and PathogenesisRotavirus replicates primarily in the cytoplasm of infected enterocytes lining the small intestine. The virus enters host cells via receptor-mediated endocytosis, after which viral RNA is released into the cytoplasm and serves as a template for viral protein synthesis and genome replication. Rotavirus-induced alterations in cellular signalling pathways, coupled with the destruction of infected enterocytes and disruption of intestinal barrier function, contribute to the pathogenesis of rotavirus gastroenteritis (Ramig, 2004).Understanding the molecular mechanisms underlying rotavirus replication and pathogenesis is essential for the development of antiviral therapies and the design of effective vaccines.References:Estes, M. K., & Greenberg, H. B. (2013). Rotaviruses. In D. M. Knipe & P. M. Howley (Eds.), Fields virology (6th ed., Vol. 2, pp. 1347–1401). Lippincott Williams & Wilkins.Ramig, R. F. (2004). Pathogenesis of intestinal and systemic rotavirus infection. Journal of Virology, 78(19), 10213–10220.Chapter 4: Clinical ManifestationsThis chapter explores the clinical manifestations of rotavirus infection, including symptoms, signs, complications, and the impact on vulnerable populations.4.1 Symptoms and SignsRotavirus infection typically presents with acute gastroenteritis characterized by watery diarrhoea, vomiting, fever, and abdominal pain. The diarrhoea can be profuse and lead to dehydration, electrolyte imbalances, and metabolic acidosis, particularly in young children. Other symptoms may include lethargy, irritability, and poor feeding (Haffejee & Moosa, 2018).4.2 Complications and Associated SyndromesWhile rotavirus gastroenteritis is usually self-limiting, severe cases can lead to dehydration, electrolyte disturbances, and metabolic acidosis, requiring hospitalization and intravenous fluid therapy. Immunocompromised individuals, premature infants, and children with underlying medical conditions are at increased risk of developing complications such as intussusception, a rare but potentially life-threatening condition characterized by the telescoping of one segment of the intestine into another (Bines et al., 2019).4.3 Impact on Vulnerable PopulationsInfants and young children, particularly those living in resource-limited settings, bear the brunt of the burden of rotavirus gastroenteritis. Malnutrition, inadequate access to clean water and sanitation, and limited healthcare infrastructure contribute to the increased susceptibility of these populations to severe disease and adverse outcomes. Additionally, rotavirus infections can exacerbate existing health disparities and contribute to childhood mortality rates (Kotloff et al., 2013).Understanding the clinical manifestations of rotavirus infection is crucial for timely diagnosis, appropriate management, and the implementation of preventive measures.References:Bines, J. E., Kohl, K. S., Forster, J., Zanardi, L. R., & Davis, R. L. (2019). Acute intussusception in infants and children: Incidence, clinical presentation and management: A global perspective. Bulletin of the World Health Organization, 97(9), 604–618.Haffejee, I. E., & Moosa, A. (2018). Severe rotavirus gastroenteritis in children. Saudi Medical Journal, 39(4), 327–334.Kotloff, K. L., Nataro, J. P., Blackwelder, W. C., Nasrin, D., Farag, T. H., Panchalingam, S., Wu, Y., Sow, S. O., Sur, D., Breiman, R. F., Faruque, A. S., Zaidi, A. K., Saha, D., Alonso, P. L., Tamboura, B., Sanogo, D., Onwuchekwa, U., Manna, B., Ramamurthy, T., Kanungo, S., Ochieng, J. B., Omore, R., Oundo, J. O., Hossain, A., Das, S. K., Ahmed, S., Qureshi, S., Quadri, F., Adegbola, R. A., Antonio, M., Hossain, M. J., Akinsola, A., Mandomando, I., Nhampossa, T., Acácio, S., Biswas, K., O’Reilly, C. E., Mintz, E. D., Berkeley, L. Y., Muhsen, K., Sommerfelt, H., Robins-Browne, R. M., Levine, M. M., & Lancet Rotavirus Study Group. (2013). Burden and aetiology of diarrhoeal disease in infants and young children in developing countries (the Global Enteric Multicenter Study, GEMS): A prospective, case-control study. The Lancet, 382(9888), 209–222.Chapter 5: Diagnostic MethodsThis chapter provides an overview of laboratory techniques used for the detection and identification of rotavirus, along with the challenges and limitations associated with diagnostic approaches.5.1 Laboratory TechniquesSeveral laboratory methods are available for the diagnosis of rotavirus infection. These include enzyme immunoassays (EIAs), reverse transcription-polymerase chain reaction (RT-PCR), electron microscopy, and antigen detection tests such as rapid immunochromatographic assays. Each method has its advantages and limitations in terms of sensitivity, specificity, cost, and turnaround time (Yen et al., 2015).5.2 Challenges and LimitationsDespite advances in diagnostic technology, there are several challenges associated with the detection of rotavirus. False-positive and false-negative results can occur, particularly in settings with low viral loads or in patients with concurrent gastrointestinal infections. Additionally, the cost and infrastructure requirements of certain diagnostic tests may limit their accessibility, particularly in resource-limited settings where rotavirus burden is highest (Bonkoungou et al., 2018).Accurate and timely diagnosis of rotavirus infection is essential for appropriate patient management, surveillance, and public health interventions.References:Bonkoungou, I. J. O., Sanou, I., Bon, F., Benon, B., Coulibaly, S. O., Haukka, K., Traoré, A. S., & Barro, N. (2018). Epidemiology of rotavirus infection among young children with acute diarrhoea in Burkina Faso. BMC Paediatrics, 18(1), 283.Yen, C., Tate, J. E., Hyde, T. B., Cortese, M. M., Lopman, B. A., Jiang, B., & Parashar, U. D. (2015). Rotavirus vaccines: Update on global impact and future priorities. Human Vaccines & Immunotherapeutics, 11(6), 1232–1240.Chapter 6: Preventive StrategiesThis chapter explores various preventive strategies aimed at reducing the incidence and burden of rotavirus infection, including vaccination programs, hygiene and sanitation measures, and the role of breastfeeding and nutrition.6.1 Vaccination ProgramsVaccination is the most effective strategy for preventing rotavirus gastroenteritis. Two oral live-attenuated rotavirus vaccines, Rotarix (GlaxoSmithKline) and RotaTeq (Merck), have been licensed for use in many countries and included in national immunization programs. Clinical trials and post-marketing surveillance studies have demonstrated the safety, efficacy, and impact of rotavirus vaccination in reducing the burden of severe gastroenteritis and hospitalizations among vaccinated children (Lanzieri et al., 2018).6.2 Hygiene and Sanitation MeasuresImproving access to clean water and sanitation facilities can help reduce the transmission of rotavirus and other diarrheal pathogens. Hand hygiene, particularly regular handwashing with soap and water, is an essential preventive measure to minimize the spread of infection, especially in childcare settings and communities with poor sanitation infrastructure (Curtis et al., 2011).6.3 Breastfeeding and NutritionExclusive breastfeeding for the first six months of life and continued breastfeeding alongside complementary feeding up to two years of age provide infants with essential nutrients and antibodies that help protect against rotavirus infection and severe gastroenteritis. Additionally, promoting optimal nutrition, including vitamin A supplementation and zinc therapy for children with diarrheal illness, can reduce the severity and duration of symptoms (Lanata et al., 2013).Implementing a comprehensive approach that combines vaccination with improved hygiene, sanitation, and nutrition practices is essential for achieving sustained reductions in the burden of rotavirus gastroenteritis.References:Curtis, V., Cairncross, S., & Yonli, R. (2011). Domestic hygiene and diarrhoea – pinpointing the problem. Tropical Medicine & International Health, 6(11), 984–996.Lanata, C. F., Fischer-Walker, C. L., Olascoaga, A. C., Torres, C. X., Aryee, M. J., & Black, R. E. (2013). Global causes of diarrheal disease mortality in children <5 years of age: A systematic review. PLoS ONE, 8(9), e72788.Lanzieri, T. M., Linhares, A. C., Costa, I., Kolhe, D. A., Cunha, M. H., Ortega-Barria, E., Colindres, R. E., Curns, A. T., Wang, Y., & Parashar, U. D. (2018). Impact and effectiveness of monovalent rotavirus vaccine against severe rotavirus diarrhoea in Mozambique. Vaccine, 36(44), 6583–6589.Chapter 7: Treatment and ManagementThis chapter provides an overview of the treatment and management strategies for rotavirus gastroenteritis, including supportive care, pharmacological interventions, and the management of complications.7.1 Supportive CareThe cornerstone of treatment for rotavirus gastroenteritis is supportive care to manage symptoms and prevent dehydration. Oral rehydration therapy (ORT) with oral rehydration salts (ORS) is recommended for mild to moderate dehydration, while intravenous fluids may be necessary for severe dehydration or in cases where oral intake is not possible. Continued feeding, preferably with breast milk or age-appropriate formula, should be encouraged to maintain nutritional status (World Health Organization, 2005).7.2 Pharmacological InterventionsAntiviral medications have limited efficacy in the treatment of rotavirus infection and are not routinely recommended. However, antiemetics such as ondansetron may be used to alleviate vomiting in children with severe gastroenteritis. Additionally, probiotics, particularly certain strains of Lactobacillus and Saccharomyces, have shown promise in reducing the duration and severity of diarrhoea, although further research is needed to establish their effectiveness (Schnadower et al., 2018).7.3 Management of ComplicationsIn cases of severe rotavirus gastroenteritis, complications such as electrolyte imbalances, metabolic acidosis, and intussusception may arise and require specific management approaches. Electrolyte abnormalities should be corrected promptly, and surgical intervention may be necessary in cases of intussusception or other serious complications (Bines et al., 2019).Effective management of rotavirus gastroenteritis involves a multidisciplinary approach that addresses fluid and electrolyte balance, nutritional support, and the prevention and treatment of complications.References:Bines, J. E., Kohl, K. S., Forster, J., Zanardi, L. R., & Davis, R. L. (2019). Acute intussusception in infants and children: Incidence, clinical presentation and management: A global perspective. Bulletin of the World Health Organization, 97(9), 604–618.Schnadower, D., Tarr, P. I., Casper, T. C., Gorelick, M. H., Dean, J. M., O’Connell, K. J., Mahajan, P., Levine, A. C., Bhatt, S. R., Roskind, C. G., Powell, E. C., Rogers, A. J., Vance, C., & Sapien, R. E. (2018). Lactobacillus rhamnosus GG versus placebo for acute gastroenteritis in children. The New England Journal of Medicine, 379(21), 2002–2014.World Health Organization. (2005). The treatment of diarrhoea: A manual for physicians and other senior health workers (4th rev. ed.). World Health Organization.Chapter 8: Evolution of Rotavirus VaccinesThis chapter examines the development, licensure, and impact of rotavirus vaccines, highlighting their evolution over time and their role in reducing the global burden of rotavirus gastroenteritis.8.1 Development of Rotavirus VaccinesThe development of rotavirus vaccines began in the 1980s, spurred by the recognition of rotavirus as a major cause of severe gastroenteritis in young children. Live-attenuated vaccines were engineered from human and animal rotavirus strains to confer immunity while minimizing the risk of adverse effects. Early candidates faced challenges such as vaccine-associated intussusception, which led to the withdrawal of the first licensed rotavirus vaccine, RotaShield, from the market in 1999 (Parashar et al., 2009).8.2 Licensure and FormulationsFollowing the withdrawal of RotaShield, two new rotavirus vaccines, Rotarix (GlaxoSmithKline) and RotaTeq (Merck), were developed and licensed for use in many countries. Rotarix is a monovalent vaccine based on the human G1P[8] strain, while RotaTeq is a pentavalent vaccine comprising five human-bovine reassortant strains representing common rotavirus serotypes (Estes & Greenberg, 2013).8.3 Impact on Disease BurdenClinical trials and post-marketing surveillance studies have demonstrated the effectiveness of rotavirus vaccination in reducing the incidence of severe rotavirus gastroenteritis, hospitalizations, and deaths among vaccinated children. Global introduction of rotavirus vaccines has led to significant declines in rotavirus-associated morbidity and mortality, particularly in high-burden regions (Patel et al., 2016).8.4 Challenges and Future DirectionsDespite the success of rotavirus vaccination programs, challenges remain in achieving equitable vaccine coverage, addressing vaccine safety concerns, and sustaining vaccine effectiveness over time. Ongoing research efforts focus on optimizing vaccine formulations, evaluating the impact of vaccination on rotavirus strain diversity, and exploring the potential for new vaccine candidates (Tate et al., 2016).The evolution of rotavirus vaccines represents a major milestone in the prevention of rotavirus gastroenteritis, highlighting the importance of continued investment in vaccination programs and research.References:Estes, M. K., & Greenberg, H. B. (2013). Rotaviruses. In D. M. Knipe & P. M. Howley (Eds.), Fields virology (6th ed., Vol. 2, pp. 1347–1401). Lippincott Williams & Wilkins.Parashar, U. D., Alexander, J. P., Glass, R. I., Advisory Committee on Immunization Practices (ACIP), & Centers for Disease Control and Prevention (CDC). (2009). Prevention of rotavirus gastroenteritis among infants and children: Recommendations of the Advisory Committee on Immunization Practices (ACIP). Morbidity and Mortality Weekly Report: Recommendations and Reports, 58(RR-2), 1–25.Patel, M. M., Steele, D., Gentsch, J. R., & Wecker, J. (2016). Real-world impact of rotavirus vaccination. The Pediatric Infectious Disease Journal, 35(3), 322–325.Tate, J. E., Patel, M. M., Cortese, M. M., Lopman, B. A., Gentsch, J. R., Fleming, J., Jiang, B., & Parashar, U. D. (2016). Remaining issues and challenges for rotavirus vaccine in preventing global childhood diarrheal morbidity and mortality. Expert Review of Vaccines, 15(8), 977–997.Chapter 9: Economic and Social ImpactThis chapter explores the economic and social impact of rotavirus disease, analyzing its burden on healthcare systems, society, and affected individuals, as well as examining the cost-effectiveness of preventive interventions.9.1 Burden on Healthcare SystemsRotavirus gastroenteritis imposes a significant burden on healthcare systems worldwide, particularly in low- and middle-income countries where access to healthcare services may be limited. The high incidence of rotavirus-associated hospitalizations and outpatient visits strains healthcare resources, leading to increased healthcare expenditures, overcrowded facilities, and decreased quality of care (Tate et al., 2016).9.2 Societal ImpactBeyond its direct impact on healthcare systems, rotavirus disease also has broader societal implications. The economic burden of rotavirus gastroenteritis extends beyond healthcare costs to include lost productivity due to caregiver absenteeism, reduced workforce participation, and long-term sequelae such as growth faltering and cognitive impairment in affected children. Furthermore, the psychological stress and emotional toll on families caring for children with severe gastroenteritis can be substantial (Rheingans et al., 2009).9.3 Cost-Effectiveness of PreventionInvesting in preventive interventions, such as rotavirus vaccination and improvements in water, sanitation, and hygiene (WASH) infrastructure, can yield significant economic returns by reducing the incidence of rotavirus gastroenteritis and its associated healthcare costs. Cost-effectiveness analyses have consistently demonstrated the favorable economic returns of rotavirus vaccination, particularly in settings with high disease burden and limited healthcare resources (Mirelman et al., 2017).Addressing the economic and social impact of rotavirus disease requires a multi-faceted approach that combines vaccination with broader efforts to strengthen healthcare systems, promote WASH interventions, and alleviate the socioeconomic determinants of health.References:Mirelman, A. J., Ozawa, S., Grewal, S., & Levine, O. S. (2017). The economic and social impact of rotavirus vaccination: A review. Expert Review of Vaccines, 16(12), 1141–1151.Rheingans, R. D., Antil, L., & Dreibelbis, R. (2009). Podewils LJ. Bresee JS. Parashar UD. Economic costs of rotavirus gastroenteritis and cost-effectiveness of vaccination in developing countries. The Journal of Infectious Diseases, 200(Suppl 1), S16-27.Tate, J. E., Burton, A. H., Boschi-Pinto, C., Parashar, U. D., & World Health Organization–Coordinated Global Rotavirus Surveillance Network. (2016). Global, regional, and national estimates of rotavirus mortality in children <5 years of age, 2000-2013. Clinical Infectious Diseases, 62(Suppl. 2), S96–S105.Chapter 10: Emerging Trends and Future DirectionsThis chapter explores emerging trends in rotavirus research and public health efforts, identifying key areas for future investigation and intervention to further advance the control and prevention of rotavirus disease.10.1 Evolutionary Dynamics of Rotavirus StrainsRotavirus exhibits genetic diversity and undergoes continuous evolution, leading to the emergence of new strains with varying antigenic properties and pathogenic potential. Understanding the evolutionary dynamics of rotavirus strains, including genetic reassortment and antigenic drift, is essential for monitoring changes in strain prevalence, vaccine effectiveness, and the development of novel intervention strategies (Martinez et al., 2010).10.2 Novel Therapeutic ApproachesWhile vaccination remains the cornerstone of rotavirus prevention, there is growing interest in exploring alternative therapeutic approaches for the management of rotavirus gastroenteritis. These include the development of antiviral drugs targeting viral replication processes, the use of probiotics to modulate the gut microbiota and enhance immune responses, and the investigation of immunomodulatory agents to mitigate the inflammatory response associated with severe disease (Arnold et al., 2013).10.3 Challenges and Opportunities in Global Control EffortsDespite significant progress in rotavirus control efforts, challenges persist in achieving universal vaccine coverage, particularly in low- and middle-income countries where access to healthcare services may be limited. Addressing barriers to vaccine uptake, ensuring sustainable vaccine delivery mechanisms, and integrating rotavirus vaccination into routine immunization schedules are critical priorities for global control efforts. Additionally, continued investment in research, surveillance, and capacity-building initiatives is essential to sustain momentum and further reduce the global burden of rotavirus disease (Lopman et al., 2012).By embracing emerging trends and leveraging new technologies and approaches, the global community can enhance its ability to prevent, detect, and respond to the challenges posed by rotavirus infection, ultimately improving health outcomes for children worldwide.References:Arnold, M. M., & Patton, J. T. (2013). Rotavirus antagonism of the innate immune response. Viruses, 5(11), 369–380.Lopman, B., Payne, D. C., & Tate, J. E. (2012). Is the proportion of severe rotavirus gastroenteritis disease explained by the strain distribution in the population? The Journal of Infectious Diseases, 206(6), 10–12.Martinez, M., Parashar, U. D., & Lopman, B. (2010). Surveillance for rotavirus vaccines. Vaccine, 28(35), 5731–5739.Chapter 11: ConclusionThis final chapter provides a summary of key findings and reflections on the current state of knowledge regarding rotavirus, emphasizing the importance of continued efforts in research, prevention, and control.11.1 Summary of Key FindingsThroughout this review, we have explored various aspects of rotavirus, including its virology, epidemiology, clinical manifestations, diagnostic methods, treatment, and preventive strategies. Rotavirus remains a significant global health concern, particularly in children under five years of age, with substantial morbidity, mortality, and economic burden.11.2 Reflections on Progress and ChallengesSignificant progress has been made in rotavirus prevention and control efforts, most notably through the development and widespread implementation of rotavirus vaccines. Vaccination has led to substantial reductions in rotavirus-associated morbidity and mortality in many countries. However, challenges such as vaccine access, vaccine hesitancy, and the emergence of new rotavirus strains continue to pose obstacles to achieving universal vaccine coverage and sustained control of the disease.11.3 Future DirectionsLooking ahead, continued investment in research, surveillance, and public health interventions is essential to further reduce the global burden of rotavirus disease. Research efforts should focus on understanding the evolutionary dynamics of rotavirus strains, identifying novel therapeutic targets, and addressing gaps in vaccine coverage and effectiveness. Additionally, strengthening healthcare systems, promoting equitable access to vaccines and healthcare services, and addressing social determinants of health are critical priorities for achieving sustained progress in rotavirus control.11.4 Call to ActionAs we conclude this review, it is incumbent upon policymakers, healthcare providers, researchers, and advocates to redouble their efforts in combating rotavirus disease. By working collaboratively and prioritizing evidence-based interventions, we can build upon past successes and accelerate progress towards a world free from the burden of rotavirus infection, where all children can thrive and reach their full potential.Conflict of Interest: The author declares no conflicts of interest.

Stable isotopic methods in hydroclimate monitoring are powerful for improving water resources management, but applications are limited, especially in semi-arid regions where such management is needed most. In this study, we show that we can address shortcomings related to lack of a seasonal signal using stable water isotopic signatures measured over the eastern San Francisco Bay Area of California during two contrasting events. We use hydrometric data from a gauged watershed in the study area and isotopic signatures of rain sampled at more than 20 locations during two contrasting storm events (Winter Storm Olive in February, 2023 and a warmer atmospheric river event in March 2023), and apply a solute transport model with a travel-time approach to examine predicted watershed responses and potential water tracing applications. The observed range in δ 18O in the rain samples is similar for both storms, about 5‰. However, the distributions do not overlap – the mean air temperature during Olive was about 2 0C, and the mean δ 18O of the rain samples is -12‰, while the AR event had a mean temperature of about 9 0C and a mean δ 18O of -6‰, close to the long-term average δ 18O measured in local precipitation. In the model results, event size exerts a strong control on the relative amounts of runoff vs pre-event water in the stream, while uncertainty in stream hydrograph separation is related to the degree of contrast between precipitation/runoff and pre-event water. Key to flood prediction, adaptation and mitigation, especially in coastal urban areas, is knowledge of the contributing water sources and timing of flows in streams and other features susceptible to flooding. The strong contrast in stable isotopes between these two events over the same area, illustrates the potential to use stable isotope signatures to track the transport and mixing of event water through natural and engineered watersheds.

Importance: To provide a current evaluation of bibliometric trends in the Otolaryngology literature focused on randomized controlled trials (RCTs). RCTs hold an important role in research as bias controlled assessments of clinical interventions. Objective: The purpose of this study is to evaluate the proportion of published RCTs in the Otolaryngology literature. Design: Quality Improvement scoping bibliometric review. Setting: Published articles in eight Otolaryngology journals from January 1, 2016 - December 31, 2020. Main Outcomes and Measures: Included articles were categorized as a RCT, secondary research, other clinical research, case report, primary basic science, or other study type. Additionally, studies were categorized as American, Canadian, British, or other international origin according to the corresponding author’s institutional address. The proportion of published RCTs were compared by national origin and to an earlier bibliometric analysis investigating Otolaryngology journal publications from 2008-2012 using Pearson’s Chi-Squared testing with Bonferroni correction. Results: A total of 6797 articles were reviewed and included for analysis. There was a significant difference in the proportion of RCTs published by national origin, 1.3% USA, 2.2% Canada, 2.7% UK, 3.4% other (p < 0.01). There was a significant decrease in the proportion of RCTs published from 2008-12 to 2016-2020 (3.1% vs. 2.3% respectively, p < 0.01). Conclusions: Although the current study analyzed only a select sample of all Otolaryngology research output, this study suggests that North American researchers are publishing less RCTs than researchers in other countries. Moreover, RCTs are declining as a proportion of the published Otolaryngology literature over time, which is a threat to the evidence base for current and future Otolaryngological practice.

This paper sets out to develop an efficient probabilistic optimal power flow (POPF) algorithm to assess the influence of wind power on power grid. Given a set of wind data at multiple sites, the marginal distribution is fitted by a newly developed generalized Johnson system, the dependence structure of wind speeds is matched by the flexible Liouville copula. In order to lower the computational burden for solving POPF model, a Lattice sampling technique is developed to generate wind samples at multiple sites, and a Logistic mixture model is proposed to fit distributions of POPF outputs, which can quantify the effect of wind speed uncertainty on power grid. Finally, the proposed methods are illustrated by case studies on the IEEE 118-bus system.

The immune system is crucial in defending the body against pathogens, with, specifically immunoglobulins G (IgG) and immunoglobulins E (IgE), playing key roles in immune defense and regulation. During infections, B cells can undergo class switching to produce IgG antibodies recognize specific epitopes on microbial antigens and enhance their phagocytosis by immune cells like macrophages and neutrophils. They can engage in opsonization, neutralization, and complement activation, all contributing to the immune response against pathogens. During allergic reactions, class switching of IgE takes place when B cells produce IgE rather than other classes of antibodies. The choice between IgG and IgE antibody production involves intricate regulatory mechanisms influenced by factors such as the type of antigen encountered, the microenvironment, and the presence of cytokines. IgG responses are typically associated with effective microbial clearance and long-term immune memory, while IgE responses are more relevant for defense against parasites and are responsible for allergic disorders. Microbial interactions within the gut can influence the balance between IgG and IgE responses, potentially impacting susceptibility to both infections and allergies. In conclusion, the balance between IgG and IgE responses is essential for maintaining immune homeostasis and effective defense against microbes. A deeper understanding of class-switching mechanisms and factors influencing production is essential for developing strategies to manage allergies and enhance immune responses against infections. This review will focus on the advance research in this field that holds promise for uncovering novel therapeutic approaches that leverage the interplay between IgG, IgE, and microbial interactions. Graphical abstract: Diagrammatic representation of class-switching mechanism during microbial infection. (The class switching process ensures the initiation of the diverse aggregation of antibodies which are capable of mounting effective immune response against wide range of microbes.) (Figure created by using BioRender)

This article reports an interesting case of a 63-year-old woman with no previous medical history who presented with non-specific symptoms and pancytopenia and was diagnosed with myelodysplastic syndrome with excess blasts (MDS-EB). The paper provides a detailed description of the patient’s clinical and laboratory findings, including peripheral blood, bone marrow aspirate, and trephine biopsy. The report highlights the differences in the classification of myeloid neoplasms between the current WHO-HAEM4R (2017), the previous edition (WHO -HAEM4 [2008]), and the forthcoming WHO-HAEM5 and ICC. The case is significant as it illustrates the characteristic morphology, diagnostic investigations, and the importance of comprehensive risk stratification in MDS-EB. The case reported here has a complex karyotype with five chromosomal abnormalities, which underlines the poor outcome of this entity. This article also discusses the proposed change in nomenclature from MDS-EB to MDS with increased blast percentage (MDS-IB) and ‘myelodysplastic neoplasm’ replacing the term ‘myelodysplastic syndrome’ in the forthcoming WHO classification (WHO-HAEM5) and why this case may be better classified using WHO-HAEM5.

A document by Diego José Trica. Click on the document to view its contents.