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Science China Press


The influence of estrogen on female mood changes

Research suggests that estrogen can improve mood in women, particularly during the premenstrual phase. Studies have shown a significant increase in activity in brain areas related to emotional processing premenstrually, and estrogen has been linked to reduced symptoms of depression and anxiety in postmenopausal women.

Temperature, entropy and protein binding

Researchers investigate protein binding mechanisms, including the recently discovered fly-casting method, which accelerates binding by unfolding a protein chain. Temperature influences capture radius, with optimal conditions found at transition temperatures between folding and unfolding.

Recent advance in detonation theory

Researchers Hu et al. developed a new detonation model named the least-action detonation model (LADM) that takes into account complex movement and transport effects, differing from the classical ZND model. The LADM model predicts detonation product particles to be in a stationary state, which has been observed in experiments.

Cooperative communications when collaborators are not synchronized

Cooperative communications technology allows multiple single-antenna terminals to share their antennas, creating a virtual antenna array. This enables the exploitation of spatial resource in traditional MIMO techniques without requiring multiple antennas. Distributed space-time coding (DSTC) has emerged as an efficient technique for pr...

SourceScience China Press·JournalScience China Information Sciences·DateOct 23, 2011

Progress on research of polymer solar cells

Scientists have designed a new type of polymer solar cell that can effectively tune its band gap and energy levels by incorporating different acceptor groups. The resulting polymers exhibit promising photovoltaic properties, with high open-circuit voltages achieved despite their varying band gaps.

Amphiphilic dendronized homopolymers

Researchers have synthesized a novel class of amphiphilic dendronized homopolymers with variable amphiphilicity, showing thermoresponsiveness and forming ordered porous films. These polymers adopt helical conformations in solution and can be used to develop new amphiphilic polymer structures.

Graptolite fauna indicates the beginning of the Kwangsian Orogeny

The study identifies the early Katian Age as the commencement of the Kwangsian Orogeny, a significant event in South China's geological evolution. Continuous Ordovician sections in Yongxin and Chongyi Counties display a continuous graptolite sequence, indicating a sharp facies change from deep-water black shales to shallow-water clastics.

SourceScience China Press·JournalScience China Earth Sciences·DateDec 3, 2010

Evanescent wave imaging of adsorbed protein layers

Scientists have successfully visualized adsorbed protein layers using evanescent wave imaging, demonstrating its potential for monitoring protein adsorption. The study optimized conditions by applying a polarized beam and incorporating a surface-enhanced medium, leading to significant increases in image contrast.

Subsurface scattering in point-based rendering

A new framework for rendering subsurface scattering on surfaces represented by points is introduced, providing a significant improvement in transparency and realism for translucent materials. The method uses two additional computation passes to simulate the light diffusion phenomenon inside multilayered materials.

SourceScience China Press·JournalScience China Information Sciences·DateNov 29, 2010

Frontiers of plasmonics

Researchers have made significant progress in plasmonics, a field that overcomes diffraction limitations to fabricate nano-scale optical components. These advancements enable the development of integrated nanophotonic circuits with substantial improvements in bandwidth and speed for next-generation information technologies.

SourceScience China Press·JournalChinese Science Bulletin·DateAug 4, 2010

Chaotic laser brings out higher precision OTDR

A new concept of optical time domain reflectometry (OTDR) based on a chaotic light correlation method has been developed, achieving distance-independent resolutions of up to 25 km. This technique uses broadband chaotic light generated from a laser diode to improve the accuracy of fiber fault location.

SourceScience China Press·JournalScience China Information Sciences·DateJun 3, 2010