Treatment Dilemma? A Hybrid Approach for a Rare Phenomenon of Coronary Artery Septic Embolisation in Infective Endocarditis: A Case Report

Unveiling the Enigma: Idiopathic Digital Infarction - A Case Report and Literature Review

Achalasia Cardia: A Case Report in Young Female

Case report: Vaccine-Induced, Steroid-Resistant Bullous Rash In A Patient With Isolated Discoid Lupus Resolved After One Dose Of Anifrolumab-fnia.Key words: Cutaneous Lupus, Anifrolumab-fnia, Steroid resistant,Flu Vaccine.Authors Walaa Abu Alya, Department of Internal Medicine, Cleveland Clinic Foundation, 18101 Lorain Ave, Cleveland, OH, 44111, USA.Bassem Haddad, Departments of Medicine and Rheumatology, MetroHealth Medical Center, Cleveland, OH, USA. .Chika M. Mbolu, Hackensack Meridian-Mountainside hospital.

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The increasing use of mobile robots in everyday life has ne- cessitated the development of efficient path planning algo- rithms to enable safe and reliable navigation in both known and unknown environments. Path planning is the process of discovering an optimal and safe path for a robot to navigate from its starting point to its destination. Finding the ideal collision-free path is one of the most challenging aspects of mobile robot navigation. There are various path-planning techniques to obtain an optimal path in the presence of ob- stacles; an optimal path planning technique of mobile robot saves time and reduces capital investment. These techniques can be divided into two categories viz clas- sical and heuristic. This paper provides a comprehensive re- view of path planning techniques for mobile robot naviga- tion in known and unknown environments. Path planning becomes more challenging in unknown environments, where a robot does not have prior knowledge about the surround- ings. In contrast, path planning in known environments can utilize prior knowledge about the environment to find an op- timal path. When comparing classical and heuristic approaches, it has been found that heuristic approaches are more resilient and perform well in all environments because they can deal with uncertainties. Heuristic approaches are also employed as hybrid algorithms to increase the performance of the clas- sical approaches. Heuristic techniques are well-known and frequently used for mobile robot path planning. Key opti- mization criteria, including path length, smoothness and safety degree, are also critically assessed. The paper also tabulates the advantages, disadvantages, and comparison of classical and heuristic path-planning techniques. The paper finally concludes by discussing potential future research directions to provide a roadmap for future advancements in mobile robot path planning techniques

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This paper investigates the collective impacts of magnetic field, Brownian diffusion, thermophoresis, and buoyancy force on the Casson – Williamson nanoliquid over a rough slender cylinder. The novelty of this paper is to inspect the effect of inclined magnetic field (in particular, at an angle of 45 0 to the liquid flow) over an oxytactic bioconvective nanoliquid flow. To simulate the problem, a set of nonlinearly coupled partial differential equations is employed, and nonsimilar transformations are used to reduce them into nondimensional form. For mathematical simplification, an implicit finite difference scheme and Quasilinearization technique are used. The outcomes for the influences of several significant parameters on the mass and heat transmission properties are illustrated through graphs. Temperature and velocity profiles are pronounced to be more for augmenting values of thermophoresis and Brownian motion parameters. The heat transmission and coefficient of skin friction are enhanced with the surface roughness parameter, while skin friction increases and the heat transmission decreases with the magnetic parameter. The mass transmission rate of oxygen liquid, and microbial density number enhance with the higher bioconvection Lewis number and Peclet number. In a comparison with earlier published works, the results are discovered to be highly concordant.

An experimental study was conducted to investigate how the arrangement of conical fins enhances the performance of a heat sink under forced convection conditions. Two types of heat sinks were manufactured: a staggered heat sink and an inline heat sink. The heat sink was manufactured from AL383 alloy, and the dimensions of the fins are 50 mm in height, 12 mm in diameter, with a distance of 30 mm between them. The heat sink is positioned within a horizontal channel. Five different speeds, ranging from 1.5 to 4 m/s, were utilized with a constant heat source. A variety of variables were examined, including heat dissipation, heat transfer coefficient, temperature distribution along the fin, Reynolds number (Re), Nusselt number (Nu), and heat sink efficiency. It’s evident from the results that the staggered heat sinks disperse heat more effectively than the inline heat sink, exhibiting an 8.78% increase in heat dissipation at Re 15000. Furthermore, the staggered heat sink demonstrates a significant improvement in the heat transfer coefficient (h), with a 35% enhancement at Re 15000 compared to the inline heat sink. The Nusselt number of staggered heat sinks increases with an increase in Reynolds number. The ANSYS program was utilized to determine the optimal height-to-diameter (B/d) ratio for the conical fin. While the diameter could vary from 8 mm to 16 mm, the height remained constant at 50 mm. Consequently, the ratio was tested at (6.2, 5, 4, 3.5, 3.1). The staggered heat sink dissipated 8.78% more heat than the linear heat sink at Re 15000. The heat transfer coefficient (h) value increases by 35% at Re 15000 for the staggered heat sink compared with the linear heat sink. Additionally, the Nusselt number increases with the rise in the Reynolds number (Re) and is higher for the staggered then the inline heat sink by 45% at Re 15000. Also, the results clearly convey the finding that the efficiency at Re 15000, the staggered heat sink outperforms the inline heat sink by 7.24%. Additionally, the optimal ratio for dispersing heats throughout the fin’s length was (B/d=4).

In the landscape of infectious diseases, human coronaviruses such as SARS-CoV, MERS-CoV, and SARS-CoV-2 pose significant threats, characterized by severe respiratory illnesses and notable resistance to conventional treatments due to their rapid evolution and the emergence of diverse variants, particularly within SARS-CoV-2. This study investigates the development of broad-spectrum coronavirus vaccines using heterodimeric RBD-Fc proteins engineered through the ‘Knob-into-Hole’ technique. We constructed various recombinant proteins incorporating the receptor-binding domains (RBDs) of different coronaviruses. Heterodimers combining RBDs from SARS-CoV-2 with those of SARS-CoV or MERS-CoV elicited superior neutralizing responses compared to homodimeric proteins in murine models. Additionally, heterotetrameric proteins, specifically D614G_Delta/BA.1_XBB.1.5-RBD and MERS_D614G/BA.1_XBB.1.5-RBD, demonstrated remarkable breadth and potency in neutralizing all known SARS-CoV-2 variants, SARS-CoV, related sarbecoviruses like GD-Pangolin and WIV1, and even MERS-CoV pseudoviruses. Furthermore, these heterotetrameric proteins also demonstrated enhanced cellular immune responses. These findings underscore the potential of recombinant hetero proteins as a universal vaccine strategy against current and future coronavirus threats.

The presence of pretreatment drug resistance (PDR) may jeopardize the success of standardized HIV management protocols in resource-limited settings. We evaluated the prevalence of and factors influencing PDR in Guangzhou, China, as well as the distribution of drug resistance mutations (DRMs) among HIV subtypes. Blood samples were collected from patients who initiated antiretroviral therapy (ART) from 2018 to 2022 in Guangzhou, China. PDR was analysed using HIV pol sequences. The prevalence of PDR in Guangzhou was 7.4%, with resistance rates to nucleotide reverse transcriptase inhibitor (NRTI), nonnucleoside reverse transcriptase inhibitor (NNRTI), and protease inhibitor (PI) of 1.3%, 4.8%, and 1.4%, respectively. Abacavir (0.8%) resistance was the most common in NRTI, followed by resistance to emtricitabine (0.6%), lamivudine (0.6%), and tenofovir disoproxil fumarate (0.3%). In NNRTI, nevirapine (3.7%) resistance was the most common, followed by efavirenz (3.5%) and rilpivirine (3.4%). In the multivariable logistic regression model, hepatitis B surface antigen positivity (adjusted odds ratio [aOR], 1.42; P<0.05), CRF55_01B (aOR, 3.39; P<0.001), CRF08_BC (aOR, 2.69; P<0.001), CRF59_01B (aOR, 1.90; P<0.05), and subtype B (aOR, 2.43; P<0.001) were demonstrated as influencing factors for PDR. CRF55_01B had the highest prevalence of DRMs (43.6%), followed by CRF01_AE (24.0%) and CRF07_BC (19.3%), whereas CRF07_BC (29.0%) showed the highest rate of drug resistance. The overall prevalence of PDR in Guangzhou was moderate, with relatively severe NNRTI resistance. HIV subtype is a significant risk factor for PDR. Therefore, monitoring of PDR and HIV subtype should be strengthened.

Transformation, the uptake of DNA directly from the environment, is a major driver of gene flow in microbial populations. In bacteria, DNA uptake requires a nuclease that processes dsDNA to ssDNA, which is subsequently transferred into the cell and incorporated into the genome. However, the process of DNA uptake in archaea is still unknown. Previously, we cataloged genes essential to natural transformation in Methanococcus maripaludis, but few homologs of bacterial transformation-associated genes were identified. Here, we characterize one gene, MMJJ_16440 (named here as ecnA) to be a membrane-bound nuclease. We show that EcnA is Ca 2+-activated, present on the cell surface, and essential for transformation. While EcnA is capable of degrading several forms of DNA, the highest activity was observed with ssDNA as a substrate. Activity was also observed with circular dsDNA, suggesting that EcnA is an endonuclease. This is the first biochemical characterization of a transformation-associated protein in a member of the archaeal domain and suggests that both archaeal and bacterial transformation initiate in an analogous fashion.

To conserve wide-ranging species in human-modified landscapes, it is essential to understand how the behavior of animals changes in relation to the degree and composition of modification. Evidence suggests that large inter-individual variation exists in the propensity for use of human-modified areas and may be driven by both behavioral and landscape factors. The use of agriculture lands by wildlife is of particular interest, given the importance of reducing human-wildlife conflicts and understanding how such areas can function as biodiversity buffers. African elephant space use can be highly influenced by human activity and the degree to which individuals crop-raid. We analyzed GPS data from 56 free-ranging elephants in the Serengeti-Mara Ecosystem using resource selection functions (RSFs) to assess how crop use may drive patterns of resource selection and space use within a population. We quantified drivers of similarity in resource selection across individuals using proximity analysis of individual RSF coefficients derived from random forest models. We found wide variation in RSF coefficient values between individuals indicating strongly differentiated resource selection strategies. Proximity assessment indicated the degree of crop use in the dry season, individual repeatability, and time spent in unprotected areas drove similarity in resource selection patterns. Crop selection was also spatially structured in relation to agricultural fragmentation. In areas with high fragmentation, elephants spent more time in crops and selected most strongly for crops in areas close to the protected area boundary, but in areas with low fragmentation elephants spent half as much time in crops and selected most strongly for crops further from protected area boundaries. Our results highlight how individual differences and landscape structure can both shape use of agricultural landscapes. We discuss our results in respect to the conservation challenges of human-elephant conflict and incorporating behavioral variation into human-wildlife coexistence efforts.

Peanut allergy treatment options remain limited, but novel approaches are being studied, including epicutaneous immunotherapy (EPIT). EPIT uses the cutaneous immune system to promote tolerance to food allergens. Viaskin TM Peanut, an approach to EPIT in late-stage clinical development uses an occlusive patch with a condensation chamber that enables natural epidermal water loss to solubilize dry antigen on the patch, which is then absorbed and captured by skin dendritic cells. This form of EPIT does not require disruption of the skin barrier, thus avoiding a proinflammatory cytokine response by targeting the non-vascularized epidermis and limiting systemic allergen exposure. Extensive preclinical research suggests that Viaskin Peanut has a distinct mechanism of desensitization, including the potential for disease modification, driven by a unique population of regulatory T cells. Numerous clinical studies of Viaskin Peanut have demonstrated desensitization and reductions in reaction severity, particularly in children aged 1 through 11 years, as well as a favorable safety profile with mostly mild to moderate skin reactions that were observed to decrease over time. EPIT with Viaskin Peanut may be a potential therapeutic option for peanut allergy that is clinically practical with long-term efficacy and tolerability.

Introduction: Renal cell carcinoma (RCC) is the most common type of kidney cancer, typically presenting symptoms related to the urinary tract or metastatic spread(1). However, RCC can occasionally manifest with atypical signs and symptoms, leading to diagnostic challenges. Portal vein thrombosis (PVT) is a rare complication of RCC(2), and its presence as the initial presentation is even rarer. In this case report, we discuss a unique case in which PVT served as the presenting sign of RCC, highlighting the importance of considering RCC in the differential diagnosis of patients with PVT.

Executive functioning (EF) is an important predictor of cognitive development. We examined early EF development longitudinally during the first three years of life and investigated the effect of psychosocial stress, early-term birth, and early childhood intervention on EF development. The families with psychosocial stress participated in a longitudinal RCT study implementing the home-visiting intervention program Parents-as-Teachers (PAT) (intervention group, N=121 and control group, N=111). Birth status (early-term, N=69; on-term, N=163) and family stress (high stress, N=68, low stress, N=164) were predictors of EF. EF components that were extracted from the Bayley Scales of Infant and Toddler Development measurement (BSID-III, 2006) showed changes between 1 and 3 years. A negative effect of family‘s psychosocial stress on child‘s development of EF was found during first three years, while the PAT intervention had a positive effect. Early-term birth had a moderate association with EF development. Implications for early childhood interventions are discussed.

The formation of mixed-species groups (MSGs) (also called heterospecific or polyspecific groups) is often considered an anti-predator strategy used in response to an increased predation risk. Recent studies performed in savanna ecosystems in Africa have demonstrated an increased formation of ungulate MSGs in higher predation risk areas. Nevertheless, these studies only considered one predator species (the lion Panthera leo) in evaluating the response to predation risk. Yet, species evolve in multi-predator systems that require prey to respond to multiple sources of risks. Although the importance of incorporating these multiple predators in studies is recognized, there is still little information on the behavioral strategies, including MSG formation, that prey can use to minimize predation risk from multiple predators. In the present study, we analyzed a large dataset of camera trap data (more than 160,000 observations) from five sites located in savanna biome in South Africa. We studied the likelihood of MSGs formation in response to the presence of different predators (lion, leopard (Panthera pardus), spotted hyena (Crocuta crocuta), and wild dog (Lycaon pictus)). We demonstrated that the probability of forming MSGs increased when (i) the photographic rate of the interacting species increased and (ii) the photographic rate of predators increased. Our results showed that lion and spotted hyena are the predator species most likely to trigger the formation of MSGs for different prey species. These results suggest a “hierarchy of fear” among predators in which both species are the most feared, even for prey species that either predator does not preferentially select. A large number of MSGs formed in the presence of these two predator species included Burchell’s zebras (Equus quagga burchellii), in association with species that have complementary modes of predator detection (e.g. wildebeest (Connochaetes taurinus) and giraffe (Giraffa camelopardalis). Our study highlights the importance of incorporating multiple predators into MSG analyses to better understand ecosystem functioning and, community formation.

Traditional paper medical records face challenges like lack of standardization and limited searchability. This review explores challenges in adopting and implementing Electronic Medical Records (EMR) in Southeast Asia. EMRs enhance information accuracy and aid clinical decision-making. Operationally, they generate critical healthcare statistics. Understanding barriers to EMR implementation in Southeast Asia is crucial for improving healthcare delivery. A narrative review using online databases focused on studies between 2008 and 2023 in English, covering Malaysia, Indonesia, Vietnam, and Thailand. Challenges vary by country. The most common challenges highlighted were the high cost of EMR implementation, lack of training, insufficient information technology personnel support, poor acceptance of new technology, confidentiality concerns, and privacy concerns. EMR implementation in Southeast Asia signifies healthcare modernization. Challenges persist, requiring sustained efforts for inclusive development. EMRs represent a crucial element in progressing towards effective, accessible, and patient-focused healthcare. Sustainable initiatives are essential for consistent technological advancements and improved healthcare outcomes.

This paper reports on a study of the vibration characteristics of the blade adjustment gear train for 8MW class offshore wind turbines. A method for analyzing the vibrations of the blade adjustment gear train was proposed by combining the rotational vibration model of the planetary gear train with the finite element models of the housing and carrier using the substructuring method. Applying 10%, 20%, …, 100% of the largest LDD load showed that both bearing stiffness and the primary natural frequency increase with higher LDD loads. Furthermore, the primary natural frequency for the highest load in the LDD data was found to be 104.26 Hz, which exceeds the operating speed of 84.87 rpm (5.09 Hz), indicating that vibrations due to LDD load variations do not occur within the operating speed range. In addition, analysis of critical speeds for the blade adjustment gear train showed that critical speeds related to mass unbalance, gear mesh frequency, and bearing defects do not occur within the operating speed range (84.87 rpm). Also, by utilizing AGMA 6000-B96, an acceptable displacement for vibration was selected, and the displacement occurring under LDD load conditions was compared with the acceptable displacement to assess vibration safety. The response analysis results for the planetary gears and output shaft bearings at the 1st, 2nd, and 3rd stages all satisfied the acceptable levels.

In this work, we introduce a new form of the quaternionic fractional uncertainty relation within the framework of quaternionic quantum mechanics. This is closely associated with the Li-Ostoja-Starzewski fractional gradient operator, characterized by an order range of 0 ≤1. We explore a novel Quaternionic Schrödinger equation and its specific implications, particularly addressing solutions that lead to the emergence of position-dependent mass. Additionally, we validate the theory by comparing it against the observed maximum wavelengths in the 1,3,5-hexatriene molecule.

In this paper, we study a modification of the Golden Ratio Algorithm (GRAAL) for solving monotone variational inequalities. We present an inertial Bregman modification of GRAAL for solving the aforementioned problem. Our proposed algorithm contains the inertial technique, the Bregman distance and a fully adaptive stepsize. We present a convergence result when the cost operator is monotone and locally Lipschitz continuous. Furthermore, we obtain the sublinear rate of convergence of our proposed method. Finally, we present numerical experiments to illustrate the applicability of our proposed method.

Background Insect Stings with the venoms of Hymenoptera species are well recognized as leading directly to allergic reactions in sensitised individuals. As with other hymenoptera venoms – Venom specific allergen Immunotherapy (VIT) to Jack Jumper Ants (JJA) Myrmecia pilosula has demonstrated efficacy in preventing the direct morbidity associated with severe venom-associated allergic reactions. Despite this, the indirect morbidity of severe allergy on associated background health related quality of life (HR-QoL) has not previously been assessed in patients with JJA venom allergy. Materials and methods M pilosula venom-allergic patients referred for treatment in a specialized quaternary venom treatment centre were surveyed with a venom specific HR-QoL questionnaire before and after receiving 12 months of allergen-specific venom-immunotherapy (VIT) according to JJA. A smaller subgroup also repeated this questionnaire after receiving JJA sting-challenge. Results 53 patients completed both pre-VIT and post-VIT QoL questionnaires. 83% of these patients achieved a minimal important difference (MID) of increased change in QoL of >0.5. Mean HR-QoL improved by 1.85, NNT = 1.2. There was no statistically significant difference when stratified by index-reaction grade, but appeared to be greater impairment, and subsequent improvement, Female vs Male. In the subgroup of 22 patients surveyed after VIT & re-surveyed after supervised sting challenge, Mean HR-QoL improvement 0.7, and 50% achieved a MID >0.5; therefore giving a ‘Number needed to sting’ = 2.0. Patients with the largest impairment in HR-QoL appeared to benefit the most from sting-challenge. Conclusion In JJA venom allergy the magnitude of indirect allergic morbidity, measured by HR-QoL, appears to be a separate phenomenon to that of the direct morbidity of clinical allergic sensitivity [as measured by index reaction grade.] Patient factors including gender may be important considerations for this indirect morbidity. As with direct allergic sensitivity, improvements in indirect morbidity can also be obtained by VIT treatment. In addition, formal supervised exposure with sting-challenge in patients may provide additional improvements in those with significant persistent allergy-related QoL impairment.

The Role of the Ocular Lids of the Black-Winged Kite, Elanus caeruleus, in the Immune Protection of the EyeNahed Ahmed Shawki1, Abdelraheim H Attaai2, Amany Mohamed Abdel- Mageed1, Fatma Abdel- Regal Mahmoud11 Assiut University, Faculty of Science. Zoology Department, Assiut, Egypt.2 Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Assiut University, Assiut, Assiut 71526, Egypt.2 Department of Anatomy and Histology, School of Veterinary Medicine, Badr University in Assiut, Assiut 11829, Egypt; abdelraheim.attaai@aun.edu.eg

The aim of the study was to describe the morphological features and microstructure of the upper, lower, and third eyelids of black-winged kite, Elanus caeruleus, as well as characterize the organized lymphoid follicles and lymphocytes in the eyelid’s mucosa, and to illustrate the importance of the eye adnexa in the eye’s immune protection. The black-winged kite has large forward-facing eyes placed under a bony shelf (lacrimal process) that shaded them. Both eyelids have thick and pigmented edges and bear two rows of long and finely modified filoplume feathers that increase at the anterior canthus. It was found that the lower eyelid appears longer and thinner than the upper one, as well as having sparse feathers on the skin surface of the lower eyelid but lack on the upper. The third eyelid is a white opaque membrane moving obliquely over the cornea surface. The melanocytes appear in the stratum basal of upper and lower eyelids and the Langerhans cells were observed within the layers of stratum spinosum, near the feather follicle and around the blood vessel. Aggregations of lymphatic cells were present under the conjunctival epithelium within the stroma of the lower eyelid (in the orbital zone near the tarsal plate), while absent in the upper eyelid and nictitating membrane. The present study revealed that many high endothelial venues (HEV) are distributed along the lower eyelid and increase in the palpebral marginalis, while in the upper eyelid, it is restricted in the marginal region. The density of goblet cells on the conjunctiva surface of the upper eyelid and the nictitating membrane is higher than that of the lower eyelid. The leading edge and bulbi surface of the third eyelid reveal the irregular surface of the apical cell, with many cilia having variable amounts of secretory vesicles as shown by TEM.