polar

Volunteers Scramble to Save Thousands of Sea Turtles Following Polar Vortex in Texas

As of last Wednesday, at least 3,500 sea turtles have been rescued from freezing waters in the midst record-breaking winter storm




polar

The Spirit of the International Polar Year in Arctic International Cooperation

The Spirit of the International Polar Year in Arctic International Cooperation The Spirit of the International Polar Year in Arctic International Cooperation

stanfords

Web Article

Recent online articles and analysis that have been published on the East-West Center website.

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Web Article

Recent online articles and analysis that have been published on the East-West Center website.

Explore





polar

SpaceX's Polaris Dawn crew set to attempt the riskiest spacewalk yet

The Polaris Dawn mission will include the first ever civilian spacewalk, and with a new spacesuit and no airlock, it may also be the most dangerous spacewalk ever




polar

SpaceX's Polaris Dawn mission blasts off for first civilian spacewalk

Four private astronauts are riding a SpaceX Crew Dragon capsule further from Earth than any human since 1972, where they will attempt the first ever civilian spacewalk




polar

SpaceX Polaris Dawn crew complete 'stand-up' civilian spacewalk

A groundbreaking civilian spacewalk saw two astronauts partially exit a SpaceX Crew Dragon capsule wearing a brand new design of spacesuit. Every previous spacewalk completed before this was performed by government-trained astronauts.




polar

Polaris Dawn mission is one giant leap for private space exploration

The success of the all-civilian spacewalk on SpaceX’s Polaris Dawn mission shows that private space flight is starting to catch up with government space agencies




polar

Data | BJP had the edge in the recent bipolar contests in Karnataka

Elections in Karnataka have increasingly become bipolar, with 77% of the seats recording bipolar contests in 2018





polar

SpaceX's Polaris Dawn mission blasts off

The expedition, funded by billionaire Jared Isaacman, will attempt the world's first private spacewalk.




polar

Polaroid Brings Instant Photography Magic to India with New Camera Lineup

Polaroid, the brand that pioneered instant photography, is making its way into India. Known for blending the charm of analog photography with modern features, Polaroid is appealing to Indian consumers who love physical prints and a touch of nostalgia. Teaming up




polar

Ion concentration polarization causes a nearly pore-length-independent conductance of nanopores

Faraday Discuss., 2024, Advance Article
DOI: 10.1039/D4FD00148F, Paper
DaVante Cain, Ethan Cao, Ivan Vlassiouk, Tilman E. Schäffer, Zuzanna S. Siwy
The conductance and selectivity of low-aspect-ratio nanopores are almost independent of the length due to polarization effects controlled by the geometric and electrochemical properties of the whole (pore + reservoir) system.
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The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Climate Change and the New Polar Aesthetics : Artists Reimagine the Arctic and Antarctic [Electronic book] / Lisa E. Bloom.

Durham : Duke University Press, 2022.




polar

A solvent-free neutral cobalt complex exhibiting macroscopic polarization switching induced by directional charge transfer

Inorg. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QI01389A, Research Article
Zi-Qi Zhou, Shu-Qi Wu, Qi-Rui Shui, Wen-Wei Zheng, Akari Maeda, Xiao-Peng Zhang, Jing Chu, Shinji Kanegawa, Sheng-Qun Su, Osamu Sato
A solvent-free neutral cobalt complex featuring a non-centrosymmetric polar structure exhibits macroscopic polarization switching induced by charge transfer.
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The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Polar and tropical regioisomeric decanuclear cuprofullerenes

Inorg. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QI02261K, Research Article
Jing-Xuan Sun, Ting-Ting Zou, Yi-Chun Zhang, Yu-Li Liu, Li Dang, Shun-Ze Zhan, Hong Cai, Dan Li
Two polar and tropical coordinated decanuclear regioisomeric cuprofullerenes with CuI atoms coordinating on CC bonds of the two polar zones around pentagons and the tropical zone of the equator have been successfully assembled, respectively.
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The content of this RSS Feed (c) The Royal Society of Chemistry




polar

A tetranuclear-cluster-based MOF with a low-polarity pore environment for efficient C2H6/C2H4 separation

Inorg. Chem. Front., 2024, 11,7947-7954
DOI: 10.1039/D4QI01685H, Research Article
Meng Feng, Jiantang Li, Xirong Wang, Jingyu Wang, Dongmei Wang, Banglin Chen
Benefitting from reticular chemistry, the newly developed MOF material ZJNU-400 establishes a low-polarity environment that enables reversed ethane adsorption and facilitates the efficient separation of C2H6/C2H4.
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Piezoelectric and microfluidic tuning of an infrared cavity for vibrational polariton studies

Lab Chip, 2024, Advance Article
DOI: 10.1039/D3LC01101A, Paper
Wei Wang, Jaime de la Fuente Diez, Nicolas Delsuc, Juan Peng, Riccardo Spezia, Rodolphe Vuilleumier, Yong Chen
A new method uses piezoelectric and microfluidic tuning to study vibrational polaritons in liquids under flow. This enables modifying cavity length adjustments and flexibility in experimental setups.
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The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Dielectrophoretic characterization and selection of non-spherical flagellate algae in parallel channels with right-angle bipolar electrodes

Lab Chip, 2024, Advance Article
DOI: 10.1039/D4LC00165F, Paper
Xiaoming Chen, Shun Liu, Mo Shen, Jishun Shi, Chungang Wu, Zhipeng Song, Yong Zhao
We develop a microfluidic device with closed right-angle bipolar electrodes to realize dielectrophoretic characterization and selection of non-spherical flagellate algae.
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polar

Polar coordinate active-matrix digital microfluidics for high-resolution concentration gradient generation

Lab Chip, 2024, 24,2193-2201
DOI: 10.1039/D3LC00979C, Paper
Bingbing Zhang, Jinxin Fu, Maohua Du, Kai Jin, Qi Huang, Jiahao Li, Dongping Wang, Siyi Hu, Jinhua Li, Hanbin Ma
Advancing active-matrix digital microfluidics through polar coordinates for precise concentration gradients. Demonstrated with chip photography, concentration gradient solution demo, and efficiency comparison.
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Topology of ferroelectric nematic droplets: the case driven by flexoelectricity or depolarization field

Soft Matter, 2024, Advance Article
DOI: 10.1039/D3SM01042B, Communication
Yu Zou, Jidan Yang, Xinxin Zhang, Mingjun Huang, Satoshi Aya
Emerging polar nematics exhibits nontrivial topologies in confinement, controlled by the magnitude of the polarization.
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The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Acrylate–methacrylate radical copolymerization kinetics of sparingly water-soluble monomers in polar and nonpolar solvents

Polym. Chem., 2024, 15,4542-4553
DOI: 10.1039/D4PY01015A, Paper
Noushin Rajabalinia, Fatemeh Salarhosseini, Robin A. Hutchinson
The influence of solvent on radical copolymerization kinetics is studied to provide insight to emulsion polymerization systems.
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

A dual-functional photosensitizer for mitochondria-targeting photodynamic therapy and synchronous polarity monitoring

J. Mater. Chem. B, 2024, 12,11259-11264
DOI: 10.1039/D4TB01872A, Paper
Liu Yang, Shenglong Gan, Jie Zhang, Yin Jiang, Qingxin Chen, Hongyan Sun
A dual-functional photosensitizer was developed, exhibiting potent phototoxicity and sensitivity to polarity changes.
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Hyperpolarised [2-13C]-pyruvate by 13C SABRE in an acetone/water mixture

Analyst, 2024, Advance Article
DOI: 10.1039/D4AN01005A, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Oksana A. Bondar, Gamal A. I. Moustafa, Thomas B. R. Robertson
The NMR hyperpolarisation technique SABRE has been used to hyperpolarise 13C labelled pyruvate in a predominantly aqueous solution which has then been measured by benchtop NMR.
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polar

Rapid lung ventilation MRI using parahydrogen-induced polarization of propane gas

Analyst, 2024, Advance Article
DOI: 10.1039/D4AN01029A, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Md Raduanul H. Chowdhury, Clementinah Oladun, Nuwandi M. Ariyasingha, Anna Samoilenko, Tarek Bawardi, Dudari B. Burueva, Oleg G. Salnikov, Larisa M. Kovtunova, Valerii I. Bukhtiyarov, Zhongjie Shi, Kehuan Luo, Sidhartha Tan, Juri G. Gelovani, Igor V. Koptyug, Boyd M. Goodson, Eduard Y. Chekmenev
The feasibility of ultrafast (1.7 s) ventilation MRI with a 1 × 1 × 50 mm3 voxel size is demonstrated using hyperpolarized propane gas contrast agent in excised rabbit lungs on a 0.35 T clinical MRI scanner without any scanner modification.
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The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Near equivalence of polarizability and bond order flux metrics for describing covalent bond rearrangements

Phys. Chem. Chem. Phys., 2024, 26,27459-27465
DOI: 10.1039/D4CP03337J, Paper
Lukas Kim, Teresa Head-Gordon
Identification of the breaking point for the chemical bond is essential for our understanding of chemical reactivity.
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Experimental and simulation study of reverse micelles formed by aerosol-OT and water in non-polar solvents

Phys. Chem. Chem. Phys., 2024, 26,27772-27782
DOI: 10.1039/D4CP03389B, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Angie Mat'usová, Georgina Moody, Peter J. Dowding, Julian Eastoe, Philip J. Camp
Small-angle neutron scattering and molecular dynamics simulations are used to characterise aerosol-OT reverse micelles. Simulations capture spontaneous self-assembly, compare favourably with experiments, and give microscopic information.
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Structural Distortion Driven Polaronic Transport and Table-like Magnetocaloric Properties in Polycrystalline Tb0.7Sr0.3MnO3 compound

Phys. Chem. Chem. Phys., 2024, Accepted Manuscript
DOI: 10.1039/D4CP03760J, Paper
Dipak Mazumdar, I. Das, Kalipada Das
This research mainly explores the structural, magnetic, magneto-transport, and magnetocaloric properties of the polycrystalline Tb0.7Sr0.3MnO3 compound. The results reveal a significant modification of the compound’s ground state with increasing the...
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polar

Expedition Polarstern. English

Weiss-Tuider, Katharina, author




polar

Under polarisen. English

Renslebråten, Line, 1980- author, illustrator




polar

An effective orange-red solution-processed circularly polarized organic light-emitting diode

Chem. Commun., 2024, Advance Article
DOI: 10.1039/D4CC04938A, Communication
Junqing Wang, Xiaoyi Lai, Yongzhi Zhou, Lei Hua, Weiguo Zhu, Pengfei Duan, Yafei Wang
Two orange-red emission circularly polarized thermally activated delayed fluorescence emitters (R)-ad-PXZ/(S)-ad-PXZ were synthesized. The solution processable device exhibits the maximum external quantum efficiency of 9.0% and gEL value of 10−3.
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The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Polarizable AMOEBA force field predicts thin and dense hydration layer around monosaccharides.

Chem. Commun., 2024, Accepted Manuscript
DOI: 10.1039/D4CC04415K, Communication
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Luke A Newman, Mackenzie G Patton, Breyanna A Rodriguez, Ethan W Sumner, Valerie Vaissier Welborn
Polarizable force fields crucially enhance the modeling of macromolecules in polar media. Here, we present new parameters to model six common monosaccharides with the polarizable AMOEBA force field. These parameters...
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Circularly polarized Room-Temperature Phosphorescence enhanced by Dynamic Cross-linked Networks fixation

New J. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4NJ00510D, Paper
Bochun Wang, Yuzhan Li, ChangLi Zhang, Sirong Sun, Wanli He, Dong Wang, Hui Cao, Zhou Yang
Organic ultra-long room temperature phosphorescence (OURTP) has been widely used in applications including encryption and anti-counterfeiting. However, few research has focused on circularly polarised luminescence (CPL) with RTP materials. In...
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Vacancy engineering modulates spin polarization to enhance the charge dynamics of CuIn5S8 for photocatalytic sterilization

New J. Chem., 2024, 48,7394-7404
DOI: 10.1039/D3NJ05482A, Paper
Wenbin Wu, Jing Wang, Xiaojie Liang, Laixi Luo, Yaohong Yang, Fan Zhou, Shuduan Deng, Yumin Song, Le Yang, Kunyong Kang
Photocatalytic sterilization technology is a strategy that is environmentally friendly for killing drug-resistant bacteria using solar energy.
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Solvent-polarity-controlled assembly of polynuclear titanium-calixarene complexes: constructing isolated {Ti7}, {Ti13}, {Ti24} and {Tb2Ti13} clusters

CrystEngComm, 2024, Advance Article
DOI: 10.1039/D3CE01275A, Paper
Yanyan Wang, Ying Xiong, Wuping Liao
The assembly of polynuclear titanium-calixarene complexes is based on Ti4–C8A SBUs.
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The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Crystal growth and spontaneous polarization mechanism of polar metal borate halides: Mn3B7O13Cl

CrystEngComm, 2024, 26,2060-2064
DOI: 10.1039/D4CE00060A, Communication
Haodong Li, Duo Zhang, Jiesen Guo, Qiangqiang Wang, Yuxin Ma, Munan Hao, Yuetong Wu, Fanshu Meng, Tianming Liu, Yibo Xu, Xu Chen, Changchun Zhao, Dezhong Meng, Zhiyuan Zheng, Ruijin Sun
High-quality single crystals of Mn3B7O13Cl have been successfully synthesized, to unravel the elusive mechanism behind its spontaneous polarization.
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Multicolor circularly polarized luminescence: pendant primary amine/diphenylalanine chiral copolymers with clustering-triggered emission

Mater. Chem. Front., 2024, 8,3596-3607
DOI: 10.1039/D4QM00228H, Research Article
Ryo Yonenuma, Aoi Takenaka, Tamaki Nakano, Hideharu Mori
Clustering-triggered emission (CTE) materials without π-conjugate chromophores have attracted increasing attention. In this study, we designed CTE-based circularly polarized luminescence (CPL) block and random copolymers, showing multicolor CPL.
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Dual luminescence and infrared circularly polarized luminescence up to 900 nm with platinum complexes bearing a helical donor–acceptor ligand

Mater. Chem. Front., 2024, 8,3799-3806
DOI: 10.1039/D4QM00632A, Research Article
Open Access
Pablo Vázquez-Domínguez, Maher Horojat, Eva Suits, Francisco José Fernández de Córdova, Nicolas Vanthuyne, Denis Jacquemin, Abel Ros, Ludovic Favereau
Engineering the intramolecular charge transfer character of ligands in axially chiral arylisoquinolines platinum(II) complexes leads to both fluorescence and phosphorescence emissions in solution, with NIR CPL that extends up to almost 850 nm.
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

A polar multilayered two-dimensional hybrid perovskite for self-driven X-ray photodetection with a low detection limit

Mater. Chem. Front., 2024, 8,3807-3816
DOI: 10.1039/D4QM00582A, Research Article
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Jingtian Zhang, Wuqian Guo, Haojie Xu, Qingshun Fan, Linjie Wei, Xianmei Zhao, Zhihua Sun, Junhua Luo
We have designed a polar multilayered hybrid perovskite by alloying large cations into the distorted cage, in which a crystal-based photodetector enables dramatic self-powered X-ray detection performance.
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Modern antidepressants can reduce risk of depressive relapse for bipolar patients, according to UBC and NIMHANS study

Bipolar disorder, earlier known as manic-depressive disorder, is prevalent in about 1% of the population and tends to be a lifelong illness




polar

Electropolymerized Organic N/P Bipolar Cathode Toward High Energy and High Power Density Sodium Dual-Ion Batteries

J. Mater. Chem. A, 2024, Accepted Manuscript
DOI: 10.1039/D4TA07077A, Paper
Weisheng Zhang, Chen-Xing Zhang, Xianhe Chen, H.J. Yin, Wenli Hu, Shilin Mei, Chang-Jiang Yao
Sodium dual ion batteries (SDIBs) have received considerable attention recently for large-scale energy storage systems due to their low cost and inherent safety. Nevertheless, SDIBs remain a subject of investigation,...
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Near fully depleted Pt/Sb2Se3/ZnO hybrid junctions for high-performance polarized detection and encrypted communication

J. Mater. Chem. C, 2024, 12,17490-17499
DOI: 10.1039/D4TC03472D, Paper
Zhipeng Sun, Fazhen Zhang, Mengdan Chen, Tao He, Yun Wei, Caixia Kan, Mingming Jiang, Peng Wan
Based on near fully depleted hybrid junctions, a Pt/Sb2Se3/ZnO polarized photodetector shows an overall photodetecting performance, which can be further applied in near-infrared polarization encrypted communication.
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

High depolarization temperature and large piezoelectricity in BiScO3–PbTiO3–Bi(Zn1/2Ti1/2)O3 piezoelectric energy harvesting ceramics

J. Mater. Chem. C, 2024, 12,17595-17602
DOI: 10.1039/D4TC03339F, Paper
Huizhong Wang, Xiaole Yu, Mupeng Zheng, Mankang Zhu, Yudong Hou
Achieving high values of both Td and HT-d33 in the BS–PT–BZT piezoelectric energy harvesting ceramics via the linear expansion of MPB and lattice tetragonality c/a modulation.
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

High-performance circularly polarized photodetectors based on chiral transfer of achiral poly(9,9-dioctylfluorene)

J. Mater. Chem. C, 2024, Advance Article
DOI: 10.1039/D4TC03735A, Paper
Xiaocheng Wu, Junjie Liu, Yunhao Xu, Longzhen Qiu, Xiaohong Wang
High-performance circularly polarized photodetectors with photocurrent asymmetry factor (|gph|) as high as 0.58 were prepared by a blending-induced chiral transfer method.
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polar

Viscoplastic photoalignment modeling of asymmetric surface restructuring in azopolymer films by elliptically polarized light

J. Mater. Chem. C, 2024, Accepted Manuscript
DOI: 10.1039/D4TC04226C, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Nina Tverdokhleb, Biagio Audia, Pasquale Pagliusi, Marina Saphiannikova
This study aims to test and validate the modern orientation approach of Saphiannikova & co. within the context of viscoplastic photoalignment (VPA) modeling. We focus on the formation of topographical...
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

A high-performance and self-powered polarization-sensitive photoelectrochemical-type Bi2O2Te photodetector based on a quasi-solid-state gel electrolyte

Mater. Horiz., 2024, 11,1710-1718
DOI: 10.1039/D3MH01882B, Communication
Song Yang, Shujie Jiao, Yiyin Nie, Yue Zhao, Shiyong Gao, Dongbo Wang, Jinzhong Wang
A quasi-solid-state photoelectrochemical-type Bi2O2Te photodetector exhibits excellent linear polarized light detection capability.
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Integration of fine-tuned chiral donor with hybrid long/short-range charge-transfer for high-performance circularly polarized electroluminescence

Mater. Horiz., 2024, 11,1752-1759
DOI: 10.1039/D3MH02146G, Communication
Xiaojun Yin, Haoxin Huang, Nengquan Li, Wendi Li, Xuechao Mo, Manli Huang, Guohao Chen, Jingsheng Miao, Chuluo Yang
Synergistic integration of a fine-tuned chiral donor with hybrid long/short-range charge-transfer offers desirable circularly polarized emitters with both a high dissymmetry factor of 1.6 × 10−3 and maximum external quantum efficiency of 37.4%.
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

Polarization double-enhancement strategy to achieve super low energy consumption with ultra-high energy storage capacity in BCZT-based relaxor ferroelectrics

Mater. Horiz., 2024, Accepted Manuscript
DOI: 10.1039/D4MH00322E, Communication
Zixiong Sun, Yuhan Bai, Hongmei Jing, Tian-Yi Hu, Kang Du, Qing Guo, Pan Gao, Ye Tian, Chunrui Ma, Ming Liu, Yongping Pu
Due to dielectric capacitors’ already-obtained fast charge-discharge speed, research has been focused on improving their Wrec. Increasing the polarization and enhancing the voltage endurance are efficient ways to reach higher...
The content of this RSS Feed (c) The Royal Society of Chemistry




polar

India’s choices in a world becoming bipolar again

India cannot allow itself to be reduced to a pawn in the renewed contest between China and the U.S.




polar

BJP creating communal polarisation in Munambam, says Govindan

He says Jamat-e-Islami was the counterpart of the BJP




polar

Unbundling Polarization [electronic journal].

National Bureau of Economic Research