160,407 results match your criteria: "Singapore; and Duke-NUS Graduate Medical School[Affiliation]"

A possibility of unprecedented architecture may be opened up by combining both vertical and in-plane heterostructures. It is fascinating to discover that the interlayer stress transfer, interlayer binding energy, and interlayer shear stress of bi-layer Gr/hBN with CNTs heterostructures greatly increase (more than 2 times) with increase the numbers of CNTs and both saturate at the numbers of CNTs = 3, but it causes only 10.92% decrease in failure strain.

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Background: Ulcerative colitis (UC) is a chronic inflammatory condition requiring continuous treatment and monitoring. There is limited pharmacokinetic data on vedolizumab during maintenance therapy and the effect of thiopurines on vedolizumab trough concentrations is unknown.

Aim: To investigate the exposure-response relationship of vedolizumab and the impact of thiopurine withdrawal in UC patients who have achieved sustained clinical and endoscopic remission during maintenance therapy.

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The pandemic has tested the fortitude and resilience of a huge swath of humanity. Even measures undertaken to address the pandemic, primarily the massive vaccination campaigns, revealed a glaring disparity between and within societies. The collective grief, anxiety, and desire for survival have led to creative ways to contend with the crisis.

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Pathological tremors can often be debilitating to activities of daily living and significantly affect the quality of life. Such tremulous movements are commonly observed in wrist flexion-extension (FE). To suppress this tremor we present a wearable robot (WR) with a customized mechanical metamaterial (MM) as the physical human-robot interface (pHRI).

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NIR-II photo-accelerated polymer nanoparticles boost tumor immunotherapy via PD-L1 silencing and immunogenic cell death.

Bioact Mater

April 2025

School of Life Science, Advanced Research Institute of Multidisciplinary Science, Aerospace Center Hospital, Key Laboratory of Molecular Medicine and Biotherapy, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Beijing Institute of Technology, Beijing, 100081, China.

Immune checkpoint blockade (ICB) therapy is a widely favored anti-tumor treatment, but it shows limited response to non-immunogenic "cold" tumors and suffers from drug resistance. Photodynamic therapy (PDT), as a powerful localized treatment approach, can convert a "cold tumor" into a "hot tumor" by inducing immunogenic cell death (ICD) in tumor cells, thereby enhancing tumor immunogenicity and promoting tumor immunotherapy. However, the effectiveness of PDT is largely hindered by the limited penetration depth into tumor tissues.

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Background Multiple studies have shown that symptoms of knee osteoarthritis (OA) weakly correlate with the radiographic severity of the disease. Our objective was to determine possible correlations between the radiographic severity of knee OA and clinical manifestations such as disability, pain scores, and emotional health. Methods A retrospective review of registry data of 305 patients with knee OA was collected.

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Background: Serum (plasma) creatinine and cystatin C are widely used in pediatric clinical practice to assess glomerular filtration rate. Both markers have limitations due to the low index of individuality, which affects the clinical sensitivity of population-based reference intervals, especially when wide age ranges are considered. This study aimed to establish age-related reference intervals for plasma cystatin C and creatinine in Vietnamese children.

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Introduction: Endothelin A (ETA) receptor activation is a driver of proteinuria, kidney inflammation, and fibrosis in IgA nephropathy (IgAN). Atrasentan, a selective ETA receptor antagonist, has potential to reduce proteinuria and preserve kidney function in IgAN. ALIGN (NCT04573478) is a phase 3, randomized, double-blind, placebo-controlled clinical trial of atrasentan in patients with IgAN at high risk of kidney function loss.

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All-Optical Generation and Detection of Coherent Acoustic Vibrations in Single Gallium Phosphide Nanoantennas Probed near the Anapole Excitation.

Nano Lett

January 2025

Facultad de Ciencias Exactas y Naturales, Departamento de Física, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina.

Nanostructured high-index dielectrics have shown great promise as low-loss photonic platforms for wavefront control and enhancing optical nonlinearities. However, their potential as optomechanical resonators has remained unexplored. In this work, we investigate the generation and detection of coherent acoustic phonons in individual crystalline gallium phosphide nanodisks on silica in a pump-probe configuration.

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Toward a Generalizable Machine-Learned Potential for Metal-Organic Frameworks.

ACS Nano

January 2025

Graduate School for Integrative Sciences and Engineering Programme, National University of Singapore, Singapore119077, Singapore.

Machine-learned potentials (MLPs) have transformed the field of molecular simulations by scaling "quantum-accurate" potentials to linear time complexity. While they provide more accurate reproduction of physical properties as compared to empirical force fields, it is still computationally costly to generate their training data sets from ab initio calculations. Despite the emergence of foundational or general MLPs for organic molecules and dense materials, it is unexplored if one general MLP can be effectively developed for a wide variety of nanoporous metal-organic frameworks (MOFs) with different chemical moieties and geometric properties.

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A porous and flexible Zn-MOF was synthesized under solvothermal conditions by using the ligand 2,5-furandicarboxylic acid (2,5-FDA). This flexible Zn-MOF demonstrates a temperature-triggered breathing effect. At low temperature (100 K), we obtained the high-symmetry MOF denoted as with a unit cell volume of 1958 Å, characterized by triangular narrow pore (np) channels.

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Introduction: mHealth technology has the potential to deliver personalized health care; however, data on cardiometabolic risk factors are limited. This study aims to assess the effectiveness of mobile health applications (apps) on cardiometabolic risk factor reduction in adults aged 25 to 60 years in urban and rural India.

Methods: The study design was a pilot randomized controlled trial conducted in Tamil Nadu, India.

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This study extends the Theory of Normative Social Behavior by examining the cross-lagged effects of perceived norms on mask-wearing intention and behavior during an evolving COVID-19 pandemic. We also investigate the normative mechanisms of how social responsibility appeals improve compliance with mask-wearing behavior. A two-wave panel survey ( = 767) was conducted in Singapore in March and April 2020.

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Diabetes in China: epidemiology, pathophysiology and multi-omics.

Nat Metab

January 2025

Peers for Progress, Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.

Although diabetes is now a global epidemic, China has the highest number of affected people, presenting profound public health and socioeconomic challenges. In China, rapid ecological and lifestyle shifts have dramatically altered diabetes epidemiology and risk factors. In this Review, we summarize the epidemiological trends and the impact of traditional and emerging risk factors on Chinese diabetes prevalence.

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Conjugation plays a major role in dissemination of antimicrobial resistance genes. Following transfer of IncF-like plasmids, recipients become refractory to a second wave of conjugation with the same plasmid via entry (TraS) and surface (TraT) exclusion mechanisms. Here, we show that TraT from the pKpQIL and F plasmids (TraT and TraT) exhibits plasmid surface exclusion specificity.

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Faced with the increased frequency of zoonotic spillover in recent decades, emerging vector-borne diseases from nonhuman primates pose a significant threat to global public health. Understanding transmission dynamics driven by arthropod vectors between wildlife populations is critical for surveillance, modeling, and mitigation. Elevated canopy-level sampling is a valuable approach for elucidating vector behavior and sylvatic transmission.

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In-Plane Polarization-Triggered WS-Ferroelectric Heterostructured Synaptic Devices.

ACS Appl Mater Interfaces

January 2025

School of Information Science and Technology, Fudan University, Shanghai 200433, China.

To date, various kinds of memristors have been proposed as artificial neurons and synapses for neuromorphic computing to overcome the so-called von Neumann bottleneck in conventional computing architectures. However, related working principles are mostly ascribed to randomly distributed conductive filaments or traps, which usually lead to high stochasticity and poor uniformity. In this work, a heterostructure with a two-dimensional WS monolayer and a ferroelectric PZT film were demonstrated for memristors and artificial synapses, triggered by in-plane ferroelectric polarization.

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We report a case of small bowel perforation from ileo-ileal intussusception with necrotising enterocolitis (NEC) after indomethacin exposure mimicking spontaneous intestinal perforation in an extremely preterm neonate. Indomethacin exposure can cause mesenteric hypoperfusion, resulting in an ischaemic lead point for intussusception and NEC. We advocate that intussusception should be considered as one of the differentials for neonates with recurrent feeding intolerance postindomethacin exposure.

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Occlusal acuity and bite force in young adults.

Neuroscience

January 2025

Department of Orofacial Pain and Jaw Function, Malmö University, Malmö, Sweden; Scandinavian Center for Orofacial Neurosciences (SCON), Aarhus, Denmark; Scandinavian Center for Orofacial Neurosciences (SCON), Malmö, Sweden.

Occlusal tactile acuity (OTA) and bite force are essential components of the sensorimotor control of oral behaviors. While these variables have been studied independently, it has not yet been revealed whether compressive force impacts the occlusal perception mediated by the mechanoreceptive afferents in the periodontal ligament. The present study examined the effect of repetition and maximum bite force on OTA by testing nine aluminum foils of different thicknesses together with a sham test with no foil, three times each, in randomized order in 36 healthy individuals.

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Feedback regulation of mA modification creates local auxin maxima essential for rice microsporogenesis.

Dev Cell

January 2025

Department of Biological Sciences and Temasek Life Sciences Laboratory, National University of Singapore, Singapore 117543, Singapore. Electronic address:

N-methyladenosine (mA) RNA modification and its effectors control various plant developmental processes, yet whether and how these effectors are transcriptionally controlled to confer functional specificity so far remain elusive. Herein, we show that a rice C2H2 zinc-finger protein, OsZAF, specifically activates the expression of OsFIP37 encoding a core component of the mA methyltransferase complex during microsporogenesis in rice anthers. OsFIP37, in turn, facilitates mA modification and stabilization of an auxin biosynthesis gene OsYUCCA3 to promote auxin biosynthesis in anthers.

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Unveiling the polyphenol profile and bioactive potential of kiwi berry (Actinidia arguta): Antioxidant capacity and enzyme inhibition activities.

Food Chem

January 2025

Heilongjiang Green Food Science Research Institute, Northeast Agricultural University, Harbin 150030, China; National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, Northeast Agricultural University, Harbin 150030, China; College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin 150030, China. Electronic address:

Kiwi berry (Actinidia arguta (Sieb & Zucc) Planch. ex Miq. cv 'Longcheng No.

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What Lay Beneath.

Anesth Analg

January 2025

From the Department of Anaesthesia, Khoo Teck Puat Hospital, Singapore.

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Correction: A Broad Range Triboelectric Stiffness Sensor for Variable Inclusions Recognition.

Nanomicro Lett

January 2025

Tsinghua-Berkeley Shenzhen Institute, Institute of Data and Information, Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, People's Republic of China.

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Phase separation plays a crucial role in many natural and industrial processes, such as the formation of clouds and minerals and the distillation of crude oil. In metals and alloys, phase separation is an important approach often utilized to improve their mechanical strength for use in construction, automobile, and aerospace manufacturing. Despite its importance in many processes, the atomic details of phase separation are largely unknown.

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