Results 71 to 80 of about 42,224 (232)

Electrochemically Driven Regioselective Radical Functionalization of Allenes: Scope and Mechanistic Insights

Advanced Science, EarlyView.
Allenes emerge as powerful platforms for electrochemical functionalization through radical pathways. Selective radical addition at the central carbon triggers anodic oxidation and intramolecular cyclization, enabling efficient synthesis of oxazolines and oxazolidine‐2‐imines without external oxidants.
Pranjal Pyne, Prateek Saini, Rohel Hoque, Shivam Pandey, Srinivasan Ramakrishnan, Chandra M. R. Volla   +5 more
wiley   +1 more source

The relation between the designing philosophy & the philosophy value

Journal of Architecture, Art & Humanistic Science, 2017
الفلسفة لیست علما حدیثا؛ ولکنها علم ملازم لتاریخ البشریة؛ فالإنسان البدائی کانت له فلسفته، والفلسفة فی أصلها اللغوی کلمة یونانیة قدیمة مرکبة من مقطعین هما (فیلو)؛ بمعنی حب، و(سوفیا) بمعنی حکمة؛ لذلک فإن کلمة فیلوسوفیا تعنی لغویا: حب الحکمة، ویکون ...
Mona Osman, Omima Mohamed, Ismail Awad
doaj   +1 more source

Cobalt‐Catalyzed Asymmetric Construction of Boron Stereocenters With C–N Axial Chirality

Advanced Science, EarlyView.
A cobalt/Salox‐catalyzed one‐pot annulation enables enantioselective formation of B‐stereogenic centers and C─N axial chirality via C─H/N─H annulation, affording diverse fluorescent products with high stereocontrol and optoelectronic potential. ABSTRACT The efficient construction of boron stereogenic centers alongside axial chirality remains a ...
Subramani Kumaran, Harihara Subramanian Ravi Sankar, Pritam Maity, J. Richard Premkumar, Abir Das, Basker Sundararaju   +5 more
wiley   +1 more source

NiH‐Catalyzed Enantio‐ and Regioselective Hydroselenylation of Unactivated Alkenes

Advanced Science, EarlyView.
Nickel‐hydride‐catalyzed enantio‐ and regioselective hydroselenylation of unactivated alkenes provides access to chiral organoselenium compounds. Enantiodetermining Ni–H insertion followed by single‐electron diselenide activation generates selenyl radical.
Hyung‐Joon Kang, Jaehun Kim, Sungwoo Hong   +2 more
wiley   +1 more source

Leveraging Internet of Things (IOT) technology in sustainable outdoor furniture design

Journal of Architecture, Art & Humanistic Science
With the advent of new technologies that are developing unusually, it has greatly affected the design of outdoor furniture, as it makes it different from what is known in its traditional form, and in light of the urgent need to preserve the environment ...
Prof. Dr. Ismail Ahmed Awad, Dr. Amira Al-Sayyid Abdel Azim, Researcher/ Amr Hamdy Mohamed Al-Sayed   +2 more
doaj   +1 more source

Alternating Shear Force of Respiration Regulates Cell Interactions of Fibroblasts and Macrophages to Promote Soft Tissue Integration of Chest Wall Polyetheretherketone Implants

Advanced Science, EarlyView.
Given that PEEK chest wall implants induce shear force at the soft tissue‐implant interface due to respiratory motion in the early in vivo post‐implantation stage. We confirmed that this mechanical stimulus triggers the PIEZO1/ITGB1/YAP1 signalling axis in L929 and the STAT6/p‐STAT6 pathway in RAW264.7, which in turn mediates adhesion and migration of ...
Rou Huang, Yangfan Huo, Jin Liu, Sida Liu, Minghai Ma, Hao Guo, Yuanquan Zhang, Xing Li, Xiao Liang, Jiawei Xiu, Ying Sun, Lijun Huang, Xiaolong Yan, Weiwei Wu, Lei Wang   +14 more
wiley   +1 more source

Reducing NG Wavy Defects in Slit Coil Processing Using the DMAIC Approach: A Case Study in Steel Manufacturing

Jurnal Ilmiah Teknik Industri
NG wavy defects in slit coil products represent a recurring quality problem that disrupts downstream manufacturing processes and generates customer complaints.
Juliasari Prasetya, Fandi Ahmad
doaj   +1 more source

Photocatalytic Recovery of Aromatic Chemicals from Waste Plastics

Advanced Science, EarlyView.
This Review summarizes recent advances in the photocatalytic recovery of aromatic chemicals from plastic waste, with emphasis on fundamental mechanism, representative catalytic systems, and future challenges and development directions, which is expected to provide in‐depth and valuable insights and references into the key role of sustainable catalysis ...
Lizhen Liu, Jutarat Jitrada, Jun Huang
wiley   +1 more source

EBV‐Driven ODC1 Upregulation Enhances Polyamine Anabolism to Promote Viral Replication and Cisplatin Resistance in Nasopharyngeal Carcinoma

Advanced Science, EarlyView.
EBV‑BZLF1 initiates ODC1‑driven polyamine anabolism that correlates with poor clinical prognosis in nasopharyngeal carcinoma. The ODC1–spermidine axis promotes viral replication, cell proliferation and innate immune evasion. Pharmacological inhibition of ODC1 rescues cisplatin sensitivity, establishing ODC1 as a viable therapeutic target for EBV ...
Yueshuo Li, Xudong Hu, Chenxing Yang, Na Liu, Lin Wang, Xi Cai, Min Tang, Ya Cao, Li Shang, Feng Shi   +9 more
wiley   +1 more source

Enantioselective Access to Trifluoromethylated Spirocyclopropyl Heterocycles

Advanced Science, EarlyView.
We report a rhodium‐catalyzed asymmetric [2+1] spirocyclopropanation of methylene azacycles with trifluoromethyl carbenes in situ derived from fluoroalkyl triftosylhydrazones. ABSTRACT Chiral spirocyclopropyl heterocycles have emerged as privileged three‐dimensional structural motifs in medicinal chemistry.
Yuanhao Zhu, Youzhi Xu, Weitao Zhang, Yongyue Ning, Yaojia Jiang, Yongquan Ning, Genping Huang, Jiawei Cheng, Paramasivam Sivaguru, Xihe Bi   +9 more
wiley   +1 more source