Publications by authors named "Kotwal A"

Background: Subjective cognitive decline (SCD), an early indicator of cognitive impairment, may affect COPD care and outcomes, yet its sociodemographic associations in Chronic Obstructive Pulmonary Disease (COPD) remain poorly understood.

Objective: To investigate the prevalence of SCD among people with COPD across different age groups and identify associations between demographics, risk behaviors, comorbidities, and self-reported SCD.

Design: Pooled 2019 BRFSS data from 24 states using the Cognitive Decline module were analyzed.

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Introduction: Primary healthcare is broadly acknowledged as the cornerstone of any strategy aimed at achieving Universal Health Coverage (UHC). This study aims to evaluate the costs, work patterns and efficiency of comprehensive primary healthcare (CPHC) in India.

Methods And Analysis: We will use a top-down microcosting approach to estimate the economic cost of services delivered at the primary healthcare facilities in India.

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This Letter presents a search for highly ionizing magnetic monopoles in 262  μb^{-1} of ultraperipheral Pb+Pb collision data at sqrt[s_{NN}]=5.36  TeV collected by the ATLAS detector at the LHC. A new methodology that exploits the properties of clusters of hits reconstructed in the innermost silicon detector layers is introduced to study highly ionizing particles in heavy-ion data.

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Despite the well-established significance of indicators of social connection for health and mortality, healthcare providers' (HCPs) perceptions of the role of social connection in physical health and the extent to which it is considered medically relevant remain unclear. This study examines the perceived importance and barriers to addressing social connection among HCPs in clinical settings. Surveys were completed by 681 HCPs across multiple locations and medical settings.

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Z boson events at the Large Hadron Collider can be selected with high purity and are sensitive to a diverse range of QCD phenomena. As a result, these events are often used to probe the nature of the strong force, improve Monte Carlo event generators, and search for deviations from standard model predictions. All previous measurements of Z boson production characterize the event properties using a small number of observables and present the results as differential cross sections in predetermined bins.

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High-energy nuclear collisions create a quark-gluon plasma, whose initial condition and subsequent expansion vary from event to event, impacting the distribution of the eventwise average transverse momentum [P([p_{T}])]. Disentangling the contributions from fluctuations in the nuclear overlap size (geometrical component) and other sources at a fixed size (intrinsic component) remains a challenge. This problem is addressed by measuring the mean, variance, and skewness of P([p_{T}]) in ^{208}Pb+^{208}Pb and ^{129}Xe+^{129}Xe collisions at sqrt[s_{NN}]=5.

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The investigation into relaxin (RLN), additional RLN-like proteins, and RLN family peptide receptors (RXFP) has demonstrated their role in modulating the extracellular matrix (ECM), immune cells, specifically macrophages, and angiogenesis, with recent evidence showing an effect on signaling pathways in tumor cells. These findings serve as the basis for our narrative review to collate pertinent studies in this field and provide our perspective on their clinical and investigational significance. In the article, we discuss findings from pertinent studies focusing on evaluating the expression or effect of RLN1, RLN2, or RXFP1 in various cancers.

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Significance: Accurate identification between pathologic (e.g., tumors) and healthy brain tissue is a critical need in neurosurgery.

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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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Article Synopsis
  • - The ATLAS experiment at the LHC conducted a search for long-lived particles (LLPs) using a large dataset (140 fb^{-1}) from proton-proton collisions at 13 TeV, focusing on LLPs with masses from 5 to 55 GeV that decay within the inner detector.
  • - The study considered scenarios where LLPs are produced from exotic Higgs boson decays and models involving axionlike particles (ALPs).
  • - No significant findings above expected background levels were detected, leading to the establishment of upper limits on various production rates involving the Higgs boson and the top quark related to LLPs and ALPs.
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Article Synopsis
  • 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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This paper describes a technology program aimed at developing technical skills and confidence, reducing social isolation and loneliness, and increasing healthcare self-management and self-efficacy among older adults. We conducted a mixed-methods study using surveys collected at baseline and 12 months from 90 older adults. Focus group data ( = 7) collected at 12 months were examined for convergence with key quantitative outcomes, emergent value-related themes, and evaluation of program structure and staff.

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Background: National guidelines recognize lifetime trauma as relevant to clinical care for adults nearing the end of life. We determined the prevalence of early life and cumulative trauma among persons at the end of life by gender and birth cohort, and the association of lifetime trauma with end-of-life physical, mental, and social well-being.

Methods: We used nationally representative Health and Retirement Study data (2006-2020), including adults age > 50 who died while enrolled (N = 6495).

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Social isolation and loneliness are associated with poor health and higher health care costs among older adults. Our objective was to determine if older adults identified as at risk for loneliness by a Medicare Advantage health plan could benefit from a proactive telephone support program. We conducted a mixed-methods pilot efficacy study of outbound calls from an established community-based telephone program to support older adults identified as at risk for loneliness.

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This Letter presents results from a combination of searches for Higgs boson pair production using 126-140  fb^{-1} of proton-proton collision data at sqrt[s]=13  TeV recorded with the ATLAS detector. At 95% confidence level (CL), the upper limit on the production rate is 2.9 times the standard model (SM) prediction, with an expected limit of 2.

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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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Introduction: It is important to determine the health-related quality of life (HRQoL) to devise population-based cost-effective service delivery models. The present study aimed to evaluate the HRQoL of patients with refractive errors (RE) using generic and vision-specific instruments, identify the determinants of HRQoL, and examine the validity between the quality-of-life instruments for refractive errors.

Methods: Face-to-face interviews were conducted with 515 participants with RE using generic as well as vision-specific HRQoL measures.

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Background: Identifying priority challenges of older adults with chronic obstructive pulmonary disease (COPD) is critical to designing interventions aimed at improving their well-being and independence.

Objective: To prioritize challenges of older adults with COPD and those who care for them to guide refinement of a telephonic nurse coach intervention for patients with COPD and their family caregivers (EPIC: Empowering People to Independence in COPD).

Design: Multiphase study guided by Baltes Theory of Successful Aging and the 5Ms Framework: Phase 1: Nominal group technique (NGT), a structured process of prioritizing responses to a question through group consensus.

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Objective: To provide a narrative review of challenges and opportunities in the care of thyroid cancer survivors.

Methods: A literature search for full-text articles pertaining to quality of life and survivorship in thyroid cancer was performed and supplemented with personal experience of the authors.

Results: Despite usually favorable prognosis for most thyroid cancer survivors, health-related quality of life (HRQOL) can be as poor or even worse than that in more aggressive cancers.

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Background: Patients with lung cancer, idiopathic pulmonary fibrosis (IPF), and COPD have high symptom burden, poor quality of life, and high health care use at the end of life. Although proactive integration of palliative care in lung cancer can improve outcomes, it is unclear whether similar practices have been adopted in COPD and IPF care.

Research Question: Do patients with COPD and IPF have different patterns of health care and palliative care use at the end of life compared with patients with lung cancer?

Study Design And Methods: We retrospectively identified deceased patients with lung cancer, COPD, or IPF with ≥ 1 outpatient visit at the University of California, San Francisco, in the last 6 months of life.

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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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Article Synopsis
  • * 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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