Publications by authors named "Seema"

In the present research work, a solid-state reaction method was employed to synthesize a series of CaGdSbWO:SmEu (x = 1, 1.5, 2, 3 and 4 mol%) phosphors. The phase purity, crystallinity, morphological and compositional studies were analysed via X-ray diffraction (XRD), scanning electron microscopy (SEM) imaging, and energy dispersive spectroscopy (EDS) analysis.

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A search for the exclusive hadronic decays W^{±}→π^{±}γ, W^{±}→K^{±}γ, and W^{±}→ρ^{±}γ is performed using up to 140  fb^{-1} of proton-proton collisions recorded with the ATLAS detector at a center-of-mass energy of sqrt[s]=13  TeV. If observed, these rare processes would provide a unique test bench for the quantum chromodynamics factorization formalism used to calculate cross sections at colliders. Additionally, at future colliders, these decays could offer a new way to measure the W boson mass through fully reconstructed decay products.

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  • The study investigates the associated production of Higgs and W bosons, focusing on how the relative signs of the Higgs couplings to W and Z bosons impact the process.
  • Two specific searches were conducted using large amounts of collision data from the LHC to analyze different coupling scenarios: one for opposite-sign couplings and another for same-sign (standard model-like) couplings.
  • The results significantly exclude the opposite-sign coupling hypothesis and set a strict upper limit on the production rate of this process compared to standard model predictions.
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  • The Seegene Allplex™ RV Master (RVM) assay is a multiplex RT-PCR tool designed to detect eight viral respiratory pathogens from various specimens, including those collected via nasopharyngeal swabs.
  • The study aimed to assess the diagnostic effectiveness of the RVM assay by calculating various performance metrics like sensitivity, specificity, and predictive values compared to established diagnostic methods.
  • A total of 249 positive and numerous negative respiratory specimens were analyzed, ensuring comprehensive evaluation of the RVM assay's reliability and its performance across different extraction workflows.
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  • Head and neck extension during surgeries is important for visibility but can cause the tracheal tube to move, leading to potential complications, especially in patients with difficult airways.
  • In a study involving 60 patients with limited mouth opening, researchers used a flexible bronchoscope to measure how much the nasotracheal tube moved at the vocal cords when the neck was extended.
  • Results showed that while the tube moved slightly (3 mm) during neck extension, the primary reason for the increase in distance from the tube tip to the carina was elongation of the trachea (85%), not the tube's outward migration (15%).
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This Letter presents the first study of the energy dependence of diboson polarization fractions in WZ→ℓνℓ^{'}ℓ^{'}(ℓ,ℓ^{'}=e,μ) production. The dataset used corresponds to an integrated luminosity of 140  fb^{-1} of proton-proton collisions at a center-of-mass energy of 13 TeV recorded by the ATLAS detector. Two fiducial regions with an enhanced presence of events featuring two longitudinally polarized bosons are defined.

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  • The study aimed to investigate the molecular docking characteristics and antifertility effects of extracts derived from PO leaves, specifically petroleum ether and chloroform extracts.
  • Using molecular docking software and animal models, researchers found that the petroleum ether extract (PEEPO) had a stronger anti-implantation effect than the chloroform extract (CHEPO) at various doses.
  • The results suggested that both extracts are safe at high dosages, increase blood estrogen levels, and interact favorably with estrogen receptors, indicating their potential for developing herbal antifertility treatments.
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Background Dermatophytosis is a superficial fungal infection caused by a group of pathogenic keratinophilic fungi. The increase in the incidence of superficial fungal infections, combined with the emergence of antifungal resistance, represents both a global health challenge and a considerable economic burden. Recent years have witnessed a surge in dermatophytosis cases, accompanied by the emergence of antifungal-resistant strains.

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The plant based natural products have always been a rich source of bioactive molecules for drug discovery. The tender shoots of Griff., an edible medicinal plant was extracted using methanol, water and ethanol as three different solvents to study the effect of the extracting solvents and temperature on their antioxidant, antidiabetic and antibacterial properties and total phenolic and flavonoid contents.

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Statistical combinations of searches for charginos and neutralinos using various decay channels are performed using 139  fb^{-1} of pp collision data at sqrt[s]=13  TeV with the ATLAS detector at the Large Hadron Collider. Searches targeting pure-wino chargino pair production, pure-wino chargino-neutralino production, or Higgsino production decaying via standard model W, Z, or h bosons are combined to extend the mass reach to the produced supersymmetric particles by 30-100 GeV. The depth of the sensitivity of the original searches is also improved by the combinations, lowering the 95% C.

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Background: Hepatitis B virus (HBV) infection is a serious public health issue that must be addressed.

Aim: The goal of this study was to investigate the correlation between serological status for hepatitis Be antigen (HBeAg)/anti-HBe, serum transaminase levels, and serum HBV-DNA in patients with chronic HBV infection.

Methods: A retrospective observational study with 620 patients with persistent HBV infection (mean age, 36.

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  • * The measurements utilized both semileptonic and hadronic decays of top quarks, along with events focused on single top quark production in the electroweak t channel.
  • * The combined result for the top quark mass is 172.52 GeV, with a reduced total uncertainty of 0.33 GeV, showcasing an improvement of 31% over previous measurements.
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A combination of searches for a new resonance decaying into a Higgs boson pair is presented, using up to 139  fb^{-1} of pp collision data at sqrt[s]=13  TeV recorded with the ATLAS detector at the LHC. The combination includes searches performed in three decay channels: bb[over ¯]bb[over ¯], bb[over ¯]τ^{+}τ^{-}, and bb[over ¯]γγ. No excess above the expected Standard Model background is observed and upper limits are set at the 95% confidence level on the production cross section of Higgs boson pairs originating from the decay of a narrow scalar resonance with mass in the range 251 GeV-5 TeV.

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Higgsinos with masses near the electroweak scale can solve the hierarchy problem and provide a dark matter candidate, while detecting them at the LHC remains challenging if their mass splitting is O(1  GeV). This Letter presents a novel search for nearly mass-degenerate Higgsinos in events with an energetic jet, missing transverse momentum, and a low-momentum track with a significant transverse impact parameter using 140  fb^{-1} of proton-proton collision data at sqrt[s]=13  TeV collected by the ATLAS experiment. For the first time since LEP, a range of mass splittings between the lightest charged and neutral Higgsinos from 0.

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Angular correlations between heavy quarks provide a unique probe of the quark-gluon plasma created in ultrarelativistic heavy-ion collisions. Results are presented of a measurement of the azimuthal angle correlations between muons originating from semileptonic decays of heavy quarks produced in 5.02 TeV Pb+Pb and pp collisions at the LHC.

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Background  is one of the most common bacterial pathogens in humans. It is a microaerophilic bacteria with multiple unipolar flagella. It is associated with the development of various lesions like chronic gastritis, gastric ulcers, adenocarcinoma, and mucosa-associated lymphomas.

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This Letter presents the first study of Higgs boson production in association with a vector boson (V=W or Z) in the fully hadronic qqbb final state using data recorded by the ATLAS detector at the LHC in proton-proton collisions at sqrt[s]=13  TeV and corresponding to an integrated luminosity of 137  fb^{-1}. The vector bosons and Higgs bosons are each reconstructed as large-radius jets and tagged using jet substructure techniques. Dedicated tagging algorithms exploiting b-tagging properties are used to identify jets consistent with Higgs bosons decaying into bb[over ¯].

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Introduction: Pathogenic bacteria in the oral cavity or a physiological microbiome imbalance can cause or maintain disease. Thus, this work examined a novel betadine-saline combination for antibacterial and antifungal activities.

Materials And Methods: This study was .

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ATLAS measured the centrality dependence of the dijet yield using 165  nb^{-1} of p+Pb data collected at sqrt[s_{NN}]=8.16  TeV in 2016. The event centrality, which reflects the p+Pb impact parameter, is characterized by the total transverse energy registered in the Pb-going side of the forward calorimeter.

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  • The study uses an unsupervised anomaly-detection technique to search for new resonances in particle collision data from the ATLAS experiment at the Large Hadron Collider, focusing on events with electrons or muons.
  • An autoencoder is trained on the data to identify unusual patterns by analyzing the reconstruction loss, with the research examining nine invariant mass spectra involving pairs of jets and leptons or photons.
  • No significant anomalies were found, leading to the establishment of limits on potential Gaussian signals of various widths for the analyzed invariant masses in the anomalous regions.
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This Letter reports the observation of WZγ production and a measurement of its cross section using 140.1±1.2  fb^{-1} of proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider.

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The first evidence for the Higgs boson decay to a Z boson and a photon is presented, with a statistical significance of 3.4 standard deviations. The result is derived from a combined analysis of the searches performed by the ATLAS and CMS Collaborations with proton-proton collision datasets collected at the CERN Large Hadron Collider (LHC) from 2015 to 2018.

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Introduction: In developing nations, one of the most common reasons for death and illness is due to infections that are brought on by intestinal parasites. People who have HIV are more likely to contract parasites that are either well-established intestinal pathogens, like and or an opportunistic pathogen like Cryptosporidium, Isospora, Cyclospora and Microsporidia. Higher prevalence of intestinal parasitic infections occurs in patients with low CD4+ cell counts.

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