Publications by authors named "Tam K"

Objective: Deep sternal wound infection (DSWI) is a rare but devastating complication that is estimated to occur in 1-2% of patients after median sternotomy. Current standard of care (SoC) comprises antibiotics, debridement and negative pressure wound therapy (NPWT). Hyperbaric oxygen therapy (HBOT) appears to be an effective adjuvant therapy for osteomyelitis.

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Research on the interaction between surfactants and cellulose nanocrystals (CNC) has mainly focused on the interaction between CNC and conventional surfactants, and there are no reported studies on the interaction between CNC and gemini surfactants. The interactions between CNC and conventional surfactant (tetradecyltrimethylammonium bromide, termed as TTAB), asymmetric gemini surfactant ([CH(CH)N(CH)N(CH)CH]Br (14-6-6)) or symmetric gemini surfactant ([CH(CH)N(CH)N(CH)CH]Br (14-6-14)) were examined. With increasing surfactant concentration, interaction of TTAB/CNC was described by three regions, i.

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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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Heart failure with preserved ejection fraction (HFpEF) is increasingly common but its pathogenesis is poorly understood. The ability to assess genetic and pharmacologic interventions is hampered by the lack of robust preclinical mouse models of HFpEF. We developed a novel "two-hit" model, which combines obesity and insulin resistance with chronic pressure overload to recapitulate clinical features of HFpEF.

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This paper aims to highlight the significant role of culture in human responses to global environmental challenges. Specifically, it discusses three thematic clusters of research, which demonstrate that: (i) culture can influence pro-environmental behavior through shaping values and moderating the relationship between psychological determinants and such behavior; (ii) perceptions of nature and its relationships with humans vary across cultures; and (iii) consumption behaviors are often shaped by practices that constitute social life within communities. Evidence from these research clusters suggests that understanding cultural dynamics is essential for designing effective, context-sensitive interventions aimed at driving sustainability transitions.

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Background: INTER- and INTRAmuscular fat (IMF) is elevated in high metabolic states and can promote inflammation. While magnetic resonance imaging (MRI) excels in depicting IMF, the lack of reproducible tools prevents the ability to measure change and track intervention success.

Methods: We detail an open-source fully-automated iterative threshold-seeking algorithm (ITSA) for segmenting IMF from T1-weighted MRI of the calf and thigh within three cohorts (CaMos Hamilton (N = 54), AMBERS (N = 280), OAI (N = 105)) selecting adults 45-85 years of age.

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Background And Purpose: Trichosanthin (TCS) is a plant-based ribosome-inactivating protein exhibiting a range of pharmacological properties, including abortifacient and anticancer. However, the routine clinical use in cancer treatment was hampered by its antigenicity. Hexokinase 2 (HK2) is a pivotal regulator of glycolysis, where aberrant expression is observed in many cancers.

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Article Synopsis
  • - The study reviews large-scale clinical trials and real-world data on the effectiveness and safety of CDK4/6 inhibitors for breast cancer treatment, addressing potential biases from limited real-world evidence.
  • - It analyzed 41 prospective trials and 80 retrospective studies with nearly 70,000 patients, finding that CDK4/6 inhibitors significantly enhance overall survival and progression-free survival rates across different drugs.
  • - Adverse effects vary by ethnicity, with Asian patients more prone to specific side effects like neutropenia, while Western patients reported higher rates of severe adverse effects, highlighting the need for personalized treatment approaches.
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Tendon and ligament injuries are highly prevalent but heal poorly, even with proper care. Restoration of native tissue function is complicated by the fact that these tissues vary anatomically in terms of their mechanical properties, composition, and structure. These differences develop as adaptations to diverse mechanical demands; however, pathology may alter the loads placed on the tissue.

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Objectives: To investigate the barriers and facilitators to rehabilitation experienced by individuals with cervical SCI after upper limb (UL) reconstructive surgery.

Methods: We conducted a prospective cohort study with a follow-up period of up to 24 months. Data collection occurred at two academic and two Veterans Affairs medical centers in the United States.

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In a prospective, remote natural history study of 277 individuals with (60) and genetically at risk for (217) Parkinson's disease (PD), we examined interest in the return of individual research results (IRRs) and compared characteristics of those who opted for versus against the return of IRRs. Most ( = 180, 65%) requested sharing of IRRs with either a primary care provider, neurologist, or themselves. Among individuals without PD, those who requested sharing of IRRs with a clinician reported more motor symptoms than those who did not request any sharing (mean (SD) 2.

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The prairie vole () is a monogamous rodent species which displays selective social behaviors to conspecifics after establishing a pair bonded relationship, specifically partner-directed affiliation and stranger-directed aggression. This social selectivity relies on the ability of an individual to respond appropriately to a social context and requires salience detection and valence assignment. The anterior insular cortex (aIC) has been implicated in stimulus processing and categorization across a variety of contexts and is well-situated to integrate environmental stimuli and internal affective states to modulate complex goal-directed behaviors and social decision-making.

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Article Synopsis
  • Most research on the mental health impact of natural hazards has focused on high-income countries, despite developing nations being more affected.
  • A meta-analysis of 75 studies including 82,400 individuals revealed high prevalence rates of PTSD (26.0%) and depression (21.7%) in Global South populations during the first year after natural disasters.
  • Displaced individuals showed even higher rates of PTSD (46.5%), indicating a significant mental health burden in affected communities.
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The theory of high entropy-dissipative structure is confined to high-entropy alloys and their oxide materials under harsh conditions, but it is very difficult to obtain high entropy-dissipative structure for smart sensors based on polymers and metal oxides under mild conditions. Moreover, multiple signal coupling effect heavily hinder the sensor applications, and current multimodal integrated devices can solve two signal-decoupling, but need very complicated process way. In this work, new synthesis concept is the first time to fabricate high entropy-dissipative conductive layer of smart sensors with triple-signal response and self-decoupling ability within poly-pyrrole/zinc oxide (PPy/ZnO) system.

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  • The study explored the quality of life (QoL) of long-term care residents with advanced dementia in Macao, finding that it is lower compared to expectations, particularly regarding social interactions like smiling and touching.
  • Using assessments like the FAST and QUALID scale, researchers identified that a majority of participants were at Stage 7 of dementia, indicating severe impairment, which negatively impacted their overall QoL.
  • Key factors influencing this reduced QoL included higher levels of pain, Behavioral and Psychological Symptoms of Dementia (BPSD), and the advanced stage of dementia, suggesting a need for targeted care strategies to improve residents' well-being.
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Context: Healthcare institutions acknowledge the value of diverse workforces for enhancing programs and meeting the varied needs of individuals with Spinal Cord Injury. This survey conducted at the 2023 Academy of Spinal Cord Injury Professions (ASCIP) conference assesses healthcare professionals' views on workplace Diversity, Equity, and Inclusion (DEI) and their support for integrating related educational content in future events.

Methods: : The survey was distributed digitally to ASCIP attendees, ensuring anonymity and voluntary participation.

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Background: Heart failure with preserved ejection fraction (HFpEF) currently accounts for more than half of patients with HF, with limited approved evidence-based therapies. HFpEF is a complex multifactorial disease associated with hypertension, obesity, diabetes, and renal dysfunction. In addition to our limited understanding of HFpEF pathophysiology, the development of new therapies is partially hindered by the existing translationally relevant preclinical HFpEF models.

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This meta-analysis investigated therapeautic effects of laser therapies in patients with Bell's palsy (BP). The authors performed the literature search in the PubMed, Embase, and Cochrane Library databases using the following search terms: (facial paralysis OR Bell's palsy OR facial palsy OR idiopathic facial paralysis) AND (laser OR low-level laser OR photobiomodulation OR phototherapy). Relevant studies published before October 29th 2024 were identified.

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Background And Objectives: Indication for sentinel lymph node (SLN) biopsy in ductal carcinoma in situ (DCIS) patients with high-upstaging risk remains inconsistent. Our previous systematic review and meta-analysis had reported five variables that were significantly higher in the upstaging group. We developed the "high-risk upstaging model" and investigated its predictivity and accuracy.

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In Federated Learning, Anomaly Detection poses significant challenges due to the decentralized nature of data, especially under Non-IID distributions. This study proposes a federated threshold calculation method that aggregates summary statistics from normal and anomalous data across clients to create a global threshold for Anomaly Detection with federated Autoencoders, enhancing detection accuracy and robustness while ensuring privacy. Extensive experiments on datasets, including Credit Card Fraud Detection, Shuttle, and Covertype, show that our approach consistently outperforms existing federated and local threshold calculation methods.

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In an era where entertainment is effortlessly at our fingertips, one would assume that people are less bored than ever. Yet, reports of boredom are higher now than compared to the past. This rising trend is concerning because chronic boredom can undermine well-being, learning, and behaviour.

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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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Objective: Diagnosis of periprosthetic joint infection (PJI) in patients with inflammatory arthritis (IA) is challenging, as features of IA flares can mimic infection. We aimed to cross-sectionally determine if the optimal tests to diagnose PJI in osteoarthritis were present in patients with IA flares.

Methods: We enrolled patients from October 2020 to July 2022 in 3 groups: (a) PJI-total joint arthroplasty patients undergoing revision for infection, (b) IA Flare-IA patients with a flaring native joint, and (c) IA Aseptic-total joint arthroplasty patients with IA undergoing aseptic arthroplasty revision.

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