Results 61 to 70 of about 28,443 (183)

Solid‐state [2 + 2] photocycloaddition in an interpenetrated Mn(II)‐based metal–organic framework via a single‐crystal‐to‐single‐crystal transformation

Bulletin of the Korean Chemical Society, Volume 47, Issue 3, Page 252-261, March 2026.
One parent Mn(II) MOF undergoes a photo‐induced [2 + 2] cycloaddition in a SCSC manner, preserving pcu topology and interpenetration while altering lattice metrics. Abstract Metal–organic frameworks (MOFs) are structurally tunable crystalline materials that can undergo stimulus‐induced transformations in the solid state.
Gyeongeun Ahn, Taehun Kim, Jisu Lim, Kyunghye Ju, In‐Hyeok Park   +4 more
wiley   +1 more source

The Euclidean distance degree of an algebraic variety [PDF]

, 2013
The nearest point map of a real algebraic variety with respect to Euclidean distance is an algebraic function. For instance, for varieties of low rank matrices, the Eckart-Young Theorem states that this map is given by the singular value decomposition ...
Draisma, Jan, Horobet, Emil, Ottaviani, Giorgio, Sturmfels, Bernd, Thomas, Rekha R.   +4 more
core   +2 more sources

Hydraulic Modelling and Pedestrian Hazard Assessment on Underground Access Stairs: The Paral·lel Metro Station Case Study in Barcelona

Journal of Flood Risk Management, Volume 19, Issue 1, March 2026.
ABSTRACT Given the increasing flooding incidents in metro stations globally, underground space infrastructures must guarantee users' safety. This manuscript characterises the hydraulic behaviour of a flood‐prone access stairs of the Paral·lel Metro station in Barcelona.
Carlos H. Aparicio Uribe, Beniamino Russo, Jackson Téllez‐Álvarez, Eduardo Martínez‐Gomariz   +3 more
wiley   +1 more source

Fetal Bovine Serum Is Essential for Maintaining Viability of Porcine Blastocysts During Extended In Vitro Culture: A Comparative Study With Defined Supplements

Reproduction in Domestic Animals, Volume 61, Issue 3, March 2026.
ABSTRACT Extended in vitro culture (EIVC) of porcine embryos beyond Day 7 is critical for understanding peri‐implantation development but remains technically challenging due to the rapid degeneration of blastocysts. While defined serum‐free supplements, such as B27 and growth factor cocktails (FGF2, LIF, IGF1; FLI), have successfully supported EIVC in ...
Seongju Lee, Il‐Jeoung Yu, Yubyeol Jeon   +2 more
wiley   +1 more source

Homology operations and cosimplicial iterated loop spaces

, 2014
If X is a cosimplical $E_{n+1}$ space then Tot(X) is an $E_{n+1}$ space and its mod 2 homology $H_*(Tot(X))$ has Dyer-Lashof and Browder operations. It's natural to ask if the spectral sequence converging to $H_*(Tot(X))$ admits compatible operations. In
Hackney, Philip
core   +1 more source

Echocardiographic Evaluation of the Right Ventricular Thickness, Myocardial Visualization, and Fractional Area Change: The Impact of Contrast Agent and Transducer Selection

Veterinary Radiology &Ultrasound, Volume 67, Issue 2, March 2026.
ABSTRACT Accurate assessment of right ventricular wall thickness, myocardial visualization, and chamber dimensions is crucial in veterinary cardiology but remains understudied in dogs. This prospective observational study evaluated 10 healthy beagle dogs to compare three echocardiographic approaches for assessing right ventricular parameters: sector ...
Yeonju Park, Suyeon Yoon, Sumin Han, Jihye Shin, Minhyung Kim, Seungjo Park   +5 more
wiley   +1 more source

Phase II open‐label multicenter study to assess the antitumor activity of afatinib in lung cancer patients with activating epidermal growth factor receptor mutation from circulating tumor DNA: Liquid‐Lung‐A

Thoracic Cancer, 2021
Background Mutation analysis of circulating tumor DNA (ctDNA) is used for diagnosing lung cancer. This trial aimed to assess the efficacy of afatinib in treatment‐naïve patients with lung cancer harboring epidermal growth factor receptor mutations (EGFRm,
Cheol‐Kyu Park, Sung‐Yong Lee, Jae Cheol Lee, Chang‐Min Choi, Shin Yup Lee, Tae‐Won Jang, In‐Jae Oh, Young‐Chul Kim   +7 more
doaj   +1 more source

Association of Sarcopenia and Lower Bone Density With Positional Vertigo in the Morning: Insights From a Nationwide Survey

Journal of Cachexia, Sarcopenia and Muscle, Volume 17, Issue 1, February 2026.
ABSTRACT Background This study aimed to identify associations of sarcopenia, obesity and low bone mineral density (BMD) with morning positional vertigo (PV) and to examine whether these associations differ according to vestibular function status in a nationally representative sample of Korean adults.
Eun Ji Kim, Eunjin Kwon, Sukyoung Jung, Ji‐Soo Kim, Seong‐Hae Jeong   +4 more
wiley   +1 more source

Cell-Type-Specific Whole-Brain Direct Inputs to the Anterior and Posterior Piriform Cortex

Frontiers in Neural Circuits, 2020
The piriform cortex (PC) is a key brain area involved in both processing and coding of olfactory information. It is implicated in various brain disorders, such as epilepsy, Alzheimer’s disease, and autism.
Li Wang, Li Wang, Zhijian Zhang, Jiacheng Chen, Anne Manyande, Rafi Haddad, Qing Liu, Qing Liu, Fuqiang Xu, Fuqiang Xu, Fuqiang Xu, Fuqiang Xu, Fuqiang Xu   +12 more
doaj   +1 more source

New beam hardened data correction and its application to artifact reduction in CT images

Medical Physics, Volume 53, Issue 2, February 2026.
Abstract Background Beam hardening is an unavoidable phenomenon in polychromatic CT systems, where lower‐energy photons are preferentially absorbed as x‐rays pass through materials such as tissue, bone, and metal. This energy‐dependent attenuation, which conflicts with the monochromatic assumption in filtered back‐projection (FBP), produces artifacts ...
Sungwhan Kim, Soo‐Ho Kim, Mi‐Kyoung Song, Jaemin Shin, Jong Hyun Seo, Ji‐Yeon Kang   +5 more
wiley   +1 more source