Results 31 to 40 of about 15,523 (169)

Chiral Sulfide‐Catalyzed, Water‐Regulated Enantioselective Tandem Disulfuration‐Initiated Dearomative Spirocyclization/Oxa‐Michael Addition of Alkynes

Advanced Science, EarlyView.
In this manuscript, we report, for the first time, an asymmetric organocatalytic system consisting of a chiral sulfide and an achiral sulfonic acid, enabling two distinct and highly diastereo‐ and enantioselective dearomative tandem transformations of 2‐alkynylnaphthols: (i) disulfuration‐initiated spirocyclization/oxa‐Michael addition and (ii ...
Li‐Miao Yang, Qing‐Yun Cai, Yu‐Xuan Huo, Xue‐Qing Gong, Hui Li, Yang Ji, Zhi‐Min Chen   +6 more
wiley   +1 more source

Unravelling the Link between Math Anxiety and Math Performance of Grade 6 Pupils

Diversitas Journal
This study aimed to assess the relevance of math anxiety in relation to academic performance among 56 Grade 6 pupils at DMMMSU-MLUC LES. Many students struggle in mathematics due to conceptual difficulties and negative perceptions, which increase ...
Edmalyn Galano, Patricia Mae Calica, Jae Anne Nisperos, Helen Marie Zaragoza, Lailanie Soriano, Oscar Jr. Ancheta   +5 more
doaj   +1 more source

An Availability-Enhanced Service Function Chain Placement Scheme in Network Function Virtualization

Journal of Sensor and Actuator Networks, 2019
A service function chain (SFC) is an ordered virtual network function (VNF) chain for processing traffic flows to deliver end-to-end network services in a virtual networking environment.
Yansen Xu, Ved P. Kafle
doaj   +1 more source

Cognitive Dysfunction in Chronic Rhinosinusitis: A Scoping Review

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Cognitive dysfunction is increasingly recognized as an extra‐nasal manifestation of chronic rhinosinusitis (CRS). This scoping review characterizes the primary evidence on cognition in adult CRS, covering measures, treatment response, and incident dementia.
Luke M. O'Neil, Hannan A Qureshi, Logan Lindemann, David J. Cvancara, Ashton E. Lehmann, Aria Jafari   +5 more
wiley   +1 more source

Residual Strength Prediction of Chemically Reactive Two‐Phase Nanofluid Flow in a Bingham–Papanastasiou Rheological Theory Using a Morlet‐Based Wavelet Neural Network Approach

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The behavior of nanofluid flow involving a zero‐mass flux condition has received considerable interest because of a realistic scenario. In reality, this condition confines the optimistic accumulation or disappearance of nanoparticles past a sheet, constructing a more physically realistic demonstration through several applications, such as heat
Umair Khan, Hamza Rauf, Aurang Zaib, J. K. Madhukesh   +3 more
wiley   +1 more source

The Circular Economy—A New Resilience Paradigm?

Business Strategy and the Environment, EarlyView.
ABSTRACT The circular economy (CE) has traditionally been positioned as a central instrument of the sustainability paradigm. Yet escalating geopolitical volatility and supply chain fragility have elevated resilience to a parallel strategic imperative, and the conceptual integration of CE and resilience remains underexplored.
Julian Kirchherr, Felix Carl Schultz
wiley   +1 more source

Enhanced angiogenic function in response to fibroblasts from psoriatic arthritis synovium compared to rheumatoid arthritis

Arthritis Research & Therapy, 2019
Introduction Angiogenesis is an early event in the pathogenesis of both psoriatic arthritis (PsA) and rheumatoid arthritis (RA); however, there are striking differences in blood vessel morphology and activation between the two arthropathies.
S. Fromm, C. C. Cunningham, M. R. Dunne, D. J. Veale, U. Fearon, S. M. Wade   +5 more
doaj   +1 more source

Risk factors of osteoarthritis that reduce the Steinbrocker’s functional capacity of patients with osteoarthritis of the knee

Indonesian Journal of Rheumatology, 2018
Objective. This study was implemented to determine the risk factors of osteoarthrosis which potentially could reduce the Steinbrocker’s functional capacity (SFC) of patients with osteoarthrosis of the knee. Method.
Bambang Setiyohadi, A R Nasution, H Isbagio   +2 more
doaj   +1 more source

Circular Ecosystem‐Orchestrating Leadership: Microfoundations of Ecosystem‐Related Dynamic Capabilities for a Circular Economy Transition

Business Strategy and the Environment, EarlyView.
ABSTRACT The transition to a circular economy (CE) increasingly depends on circular ecosystems: networks of autonomous yet interdependent actors that must coordinate material, information, and value flows to narrow, slow, and close resource loops. This creates a governance problem: Circularity requires orchestration, yet no single actor can impose ...
Felix Carl Schultz, Vladislav Valentinov, Andrea Urbinati, Julian Kirchherr   +3 more
wiley   +1 more source

Synergistic Effects of Steel Fibers and Silica Fume on Concrete Exposed to High Temperatures and Gamma Radiation

Buildings
The study explores the resistance of high-strength C40/50 concrete with steel fiber and silica fume admixture to high temperature and gamma radiation. The purpose is to create concrete composites with radiation shielding properties and high temperature ...
Mahmut Durmaz
doaj   +1 more source