abstract：:Here, we demonstrate the use of pump-probe microscopy for high-resolution studies of vermilion degradation. Vermilion (mostly α-HgS), an important red pigment used in historical paintings, blackens over time, and metallic Hg and β-HgS have been implicated as possible degradation products. Conventional analysis techniq...

journal_title：Science advances

authors： Yu J,Warren WS,Fischer MC

更新日期：2019-06-21 00:00:00

abstract：:Superomniphobic textures are at the frontier of surface design for vast arrays of applications. Despite recent substantial advances in fabrication methods for reentrant and doubly reentrant microstructures, design optimization remains a major challenge. We overcome this in two stages. First, we develop readily general...

journal_title：Science advances

authors： Panter JR,Gizaw Y,Kusumaatmaja H

更新日期：2019-06-21 00:00:00

abstract：:One of the most plausible scenarios of the origin of life assumes the preceding prebiotic autotrophic metabolism in sulfide-rich hydrothermal vent environments. However, geochemical mechanisms to harness the reductive power provided by hydrothermal systems remain to be elucidated. Here, we show that, under a geoelectr...

journal_title：Science advances

authors： Kitadai N,Nakamura R,Yamamoto M,Takai K,Yoshida N,Oono Y

更新日期：2019-06-19 00:00:00

abstract：:Many applications in modern technology, such as self-cleaning surfaces and digital microfluidics, require control over individual fluid droplets on flat surfaces. Existing techniques may suffer from side effects resulting from high electric fields and high temperatures. Here, we introduce a markedly different method, ...

journal_title：Science advances

authors： De Jong E,Wang Y,Den Toonder JMJ,Onck PR

更新日期：2019-06-14 00:00:00

abstract：:The wiring of vertebrate and invertebrate brains provides the anatomical skeleton for cognition and behavior. Connections among brain regions are characterized by heterogeneous strength that is parsimoniously described by the wiring cost and homophily principles. Moreover, brains exhibit a characteristic global networ...

journal_title：Science advances

authors： Goulas A,Betzel RF,Hilgetag CC

更新日期：2019-06-12 00:00:00

abstract：:Preventing the degradation of metal perovskite solar cells (PSCs) by humid air poses a substantial challenge for their future deployment. We introduce here a two-dimensional (2D) A2PbI4 perovskite layer using pentafluorophenylethylammonium (FEA) as a fluoroarene cation inserted between the 3D light-harvesting perovski...

journal_title：Science advances

authors： Liu Y,Akin S,Pan L,Uchida R,Arora N,Milić JV,Hinderhofer A,Schreiber F,Uhl AR,Zakeeruddin SM,Hagfeldt A,Dar MI,Grätzel M

更新日期：2019-06-07 00:00:00

abstract：:SN2-type halide substitution and hydrolysis are two of the most ubiquitous reactions in chemistry. The interplay between these processes is fundamental in atmospheric chemistry through reactions of N2O5 and seawater. N2O5 plays a major role in regulating levels of O3, OH, NO x ...

journal_title：Science advances

authors： McCaslin LM,Johnson MA,Gerber RB

更新日期：2019-06-05 00:00:00

abstract：:Metabolic engineering uses enzymes to produce small molecules with industrial, pharmaceutical, and energy applications. However, efforts to optimize enzymatic pathways for commercial production are limited by the throughput of assays for quantifying metabolic intermediates and end products. We developed a multiplexed ...

journal_title：Science advances

authors： O'Kane PT,Dudley QM,McMillan AK,Jewett MC,Mrksich M

更新日期：2019-06-05 00:00:00

abstract：:Hybrid organic-inorganic halide perovskites have shown remarkable optoelectronic properties, exhibiting an impressive tolerance to defects believed to originate from correlated motion of charge carriers and the polar lattice forming large polarons. Few experimental techniques are capable of directly probing these corr...

journal_title：Science advances

authors： Lan Y,Dringoli BJ,Valverde-Chávez DA,Ponseca CS Jr,Sutton M,He Y,Kanatzidis MG,Cooke DG

更新日期：2019-05-31 00:00:00

abstract：:Since its domestication in the Fertile Crescent ~8000 to 10,000 years ago, wheat has undergone a complex history of spread, adaptation, and selection. To get better insights into the wheat phylogeography and genetic diversity, we describe allele distribution through time using a set of 4506 landraces and cultivars ori...

journal_title：Science advances

authors： Balfourier F,Bouchet S,Robert S,De Oliveira R,Rimbert H,Kitt J,Choulet F,International Wheat Genome Sequencing Consortium.,BreedWheat Consortium.,Paux E

更新日期：2019-05-29 00:00:00

abstract：:Noble metal foams (NMFs) are a new class of functional materials featuring properties of both noble metals and monolithic porous materials, providing impressive prospects in diverse fields. Among reported synthetic methods, the sol-gel approach manifests overwhelming advantages for versatile synthesis of nanostructure...

journal_title：Science advances

authors： Du R,Hu Y,Hübner R,Joswig JO,Fan X,Schneider K,Eychmüller A

更新日期：2019-05-24 00:00:00

abstract：:The ability of cytosolic lipopolysaccharide (LPS) to activate caspase-11-dependent nonclassical inflammasome is intricately controlled to avoid excessive inflammatory responses. However, very little is known about the regulatory role of various metabolic pathways in the control of caspase-11 activation. Here, we demon...

journal_title：Science advances

authors： Chen R,Zeng L,Zhu S,Liu J,Zeh HJ,Kroemer G,Wang H,Billiar TR,Jiang J,Tang D,Kang R

更新日期：2019-05-22 00:00:00

abstract：:An understanding of the normal state in the high-temperature superconducting cuprates is crucial to the ultimate understanding of the long-standing problem of the origin of the superconductivity itself. This so-called "strange metal" state is thought to be associated with a quantum critical point (QCP) hidden beneath ...

journal_title：Science advances

authors： Sarkar T,Mandal PR,Poniatowski NR,Chan MK,Greene RL

更新日期：2019-05-17 00:00:00

abstract：:Traumatic spinal cord injury (SCI) brings numerous inflammatory cells, including macrophages, from the circulating blood to lesions, but pathophysiological impact resulting from spatiotemporal dynamics of macrophages is unknown. Here, we show that macrophages centripetally migrate toward the lesion epicenter after inf...

journal_title：Science advances

authors： Kobayakawa K,Ohkawa Y,Yoshizaki S,Tamaru T,Saito T,Kijima K,Yokota K,Hara M,Kubota K,Matsumoto Y,Harimaya K,Ozato K,Masuda T,Tsuda M,Tamura T,Inoue K,Edgerton VR,Iwamoto Y,Nakashima Y,Okada S

更新日期：2019-05-15 00:00:00

abstract：:Plasmonic metasurfaces are a promising route for flat panel display applications due to their full color gamut and high spatial resolution. However, this plasmonic coloration cannot be readily tuned and requires expensive lithographic techniques. Here, we present scalable electrically driven color-changing metasurface...

journal_title：Science advances

authors： Peng J,Jeong HH,Lin Q,Cormier S,Liang HL,De Volder MFL,Vignolini S,Baumberg JJ

更新日期：2019-05-10 00:00:00

abstract：:Humans and animals have a "number sense," an innate capability to intuitively assess the number of visual items in a set, its numerosity. This capability implies that mechanisms to extract numerosity indwell the brain's visual system, which is primarily concerned with visual object recognition. Here, we show that netw...

journal_title：Science advances

authors： Nasr K,Viswanathan P,Nieder A

更新日期：2019-05-08 00:00:00

abstract：:Pathological cardiac hypertrophy eventually leads to heart failure without adequate treatment. The immunoproteasome is an inducible form of the proteasome that is intimately involved in inflammatory diseases. Here, we found that the expression and activity of immunoproteasome catalytic subunit β5i were significantly u...

journal_title：Science advances

authors： Xie X,Bi HL,Lai S,Zhang YL,Li N,Cao HJ,Han L,Wang HX,Li HH

更新日期：2019-05-08 00:00:00

abstract：:Energy band engineering is of fundamental importance in nanoelectronics. Compared to chemical approaches such as doping and surface functionalization, electrical and optical methods provide greater flexibility that enables continuous, reversible, and in situ band tuning on electronic devices of various kinds. In this ...

journal_title：Science advances

authors： Wu E,Xie Y,Zhang J,Zhang H,Hu X,Liu J,Zhou C,Zhang D

更新日期：2019-05-03 00:00:00

abstract：:The transcription factor p63 is a key mediator of epidermal development. Point mutations in p63 in patients lead to developmental defects, including orofacial clefting. To date, knowledge on how pivotal the role of p63 is in human craniofacial development is limited. Using an inducible transdifferentiation model, comb...

journal_title：Science advances

authors： Lin-Shiao E,Lan Y,Welzenbach J,Alexander KA,Zhang Z,Knapp M,Mangold E,Sammons M,Ludwig KU,Berger SL

更新日期：2019-05-01 00:00:00

abstract：:Plants produce a myriad of taxonomically restricted specialized metabolites. This diversity-and our ability to correlate genotype with phenotype-makes the evolution of these ecologically and medicinally important compounds interesting and experimentally tractable. Trichomes of tomato and other nightshade family plants...

journal_title：Science advances

authors： Leong BJ,Lybrand DB,Lou YR,Fan P,Schilmiller AL,Last RL

更新日期：2019-04-24 00:00:00

abstract：:Cancer cells often encounter oxidative stress. However, it is unclear whether normal and cancer cells differentially respond to oxidative stress. Here, we demonstrated that under oxidative stress, hepatocellular carcinoma (HCC) cells exhibit increased antioxidative response and survival rates compared to normal hepato...

journal_title：Science advances

authors： Xu D,Li X,Shao F,Lv G,Lv H,Lee JH,Qian X,Wang Z,Xia Y,Du L,Zheng Y,Wang H,Lyu J,Lu Z

更新日期：2019-04-24 00:00:00

abstract：:We have developed a way to map brain-wide networks using focal pulsed infrared neural stimulation in ultrahigh-field magnetic resonance imaging (MRI). The patterns of connections revealed are similar to those of connections previously mapped with anatomical tract tracing methods. These include connections between cort...

journal_title：Science advances

authors： Xu AG,Qian M,Tian F,Xu B,Friedman RM,Wang J,Song X,Sun Y,Chernov MM,Cayce JM,Jansen ED,Mahadevan-Jansen A,Zhang X,Chen G,Roe AW

更新日期：2019-04-24 00:00:00

abstract：:Recent research on piezoelectric materials is predominantly devoted to enhancing the piezoelectric coefficient, but overlooks its sign, largely because almost all of them exhibit positive longitudinal piezoelectricity. The only experimentally known exception is ferroelectric polymer poly(vinylidene fluoride) and its c...

journal_title：Science advances

authors： You L,Zhang Y,Zhou S,Chaturvedi A,Morris SA,Liu F,Chang L,Ichinose D,Funakubo H,Hu W,Wu T,Liu Z,Dong S,Wang J

更新日期：2019-04-19 00:00:00

abstract：:The process of sheep and goat (caprine) domestication began by 9000 to 8000 BCE in Southwest Asia. The early Neolithic site at Aşıklı Höyük in central Turkey preserves early archaeological evidence of this transformation, such as culling by age and sex and use of enclosures inside the settlement. People's strategies f...

journal_title：Science advances

authors： Abell JT,Quade J,Duru G,Mentzer SM,Stiner MC,Uzdurum M,Özbaşaran M

更新日期：2019-04-17 00:00:00

abstract：:Detection of amyloid-β (Aβ) aggregates contributes to the diagnosis of Alzheimer disease (AD). Plasma Aβ is deemed a less invasive and more accessible hallmark of AD, as Aβ can penetrate blood-brain barriers. However, correlations between biofluidic Aβ concentrations and AD progression has been tenuous. Here, we intro...

journal_title：Science advances

authors： Kim Y,Yoo YK,Kim HY,Roh JH,Kim J,Baek S,Lee JC,Kim HJ,Chae MS,Jeong D,Park D,Lee S,Jang H,Kim K,Lee JH,Byun BH,Park SY,Ha JH,Lee KC,Cho WW,Kim JS,Koh JY,Lim SM,Hwang KS

更新日期：2019-04-17 00:00:00

abstract：:In traditional models of heteroepitaxy, the substrate serves mainly as a crystalline template for the thin-film lattice, dictating the initial roughness of the film and the degree of coherent strain. Here, performing in situ surface x-ray diffraction during the heteroepitaxial growth of LaTiO3 on SrTiO3 (001), we find...

journal_title：Science advances

authors： Cook S,Letchworth-Weaver K,Tung IC,Andersen TK,Hong H,Marks LD,Fong DD

更新日期：2019-04-12 00:00:00

abstract：:NSF (N-ethylmaleimide-sensitive factor) and α-SNAP (α-soluble NSF attachment protein) bind to the SNARE (soluble NSF attachment protein receptor) complex, the minimum machinery to mediate membrane fusion, to form a 20S complex, which disassembles the SNARE complex for reuse. We report the cryo-EM structures of the α-S...

journal_title：Science advances

authors： Huang X,Sun S,Wang X,Fan F,Zhou Q,Lu S,Cao Y,Wang QW,Dong MQ,Yao J,Sui SF

更新日期：2019-04-10 00:00:00

abstract：:By experimentally studying high-order harmonic beams generated in gases, we show how the spatial characteristics of these ultrashort extreme-ultraviolet (XUV) beams can be finely controlled when a single fundamental beam generates harmonics in a thin gas medium. We demonstrate that these XUV beams can be emitted as co...

journal_title：Science advances

authors： Quintard L,Strelkov V,Vabek J,Hort O,Dubrouil A,Descamps D,Burgy F,Péjot C,Mével E,Catoire F,Constant E

更新日期：2019-04-05 00:00:00

abstract：:Variations in Earth's orbit pace the glacial-interglacial cycles of the Quaternary, but the mechanisms that transform regional and seasonal variations in solar insolation into glacial-interglacial cycles are still elusive. Here, we present transient simulations of coevolution of climate, ice sheets, and carbon cycle o...

journal_title：Science advances

authors： Willeit M,Ganopolski A,Calov R,Brovkin V

更新日期：2019-04-03 00:00:00

abstract：:Animals, humans, and multi-robot systems operate in dynamic environments, where the ability to respond to changing circumstances is paramount. An effective collective response requires suitable information transfer among agents and thus critically depends on the interaction network. To investigate the influence of the...

journal_title：Science advances

authors： Mateo D,Horsevad N,Hassani V,Chamanbaz M,Bouffanais R

更新日期：2019-04-03 00:00:00

abstract：:Surface plasmon resonance microscopy (SPRM) with single-direction illumination is a powerful platform for biomedical imaging because of its wide-field, label-free, and high-surface-sensitivity imaging capabilities. However, two disadvantages prevent wider use of SPRM. The first is its poor spatial resolution that can ...

journal_title：Science advances

authors： Kuai Y,Chen J,Tang X,Xiang Y,Lu F,Kuang C,Xu L,Shen W,Cheng J,Gui H,Zou G,Wang P,Ming H,Liu J,Liu X,Lakowicz JR,Zhang D

更新日期：2019-03-29 00:00:00

abstract：:Iron deficiency and anemia are prominent contributors to the preventable disease burden worldwide. A substantial proportion of people with inadequate dietary iron rely on rice as a staple food, but fortification efforts are limited by low iron bioavailability. Furthermore, using high iron fortification dosages may not...

journal_title：Science advances

authors： Hackl LS,Abizari AR,Speich C,Zungbey-Garti H,Cercamondi CI,Zeder C,Zimmermann MB,Moretti D

更新日期：2019-03-27 00:00:00

abstract：:The urea channel of Helicobacterpylori (HpUreI) is an ideal drug target for preventing gastric cancer but incomplete understanding of its gating mechanism has hampered development of inhibitors for the eradication of H. pylori. Here, we present the cryo-EM structures of HpUreI in closed and open conformations, both at...

journal_title：Science advances

authors： Cui Y,Zhou K,Strugatsky D,Wen Y,Sachs G,Zhou ZH,Munson K

更新日期：2019-03-20 00:00:00

abstract：:Earth's night sky continuously produces a faint chemiluminescence known as nightglow. Two prominent nighttime emissions around 90 km are the O2 Atmospheric and the OH Meinel band systems. Despite a plethora of studies since their identification seven decades ago, substantial gaps persist in our understanding of the me...

journal_title：Science advances

authors： Kalogerakis KS

更新日期：2019-03-20 00:00:00

abstract：:We studied a bilayer system hosting two-dimensional electron systems (2DESs) in close proximity but isolated from one another by a thin barrier. One 2DES has low electron density and forms a Wigner solid (WS) at high magnetic fields. The other has much higher density and, in the same field, exhibits fractional quantum...

journal_title：Science advances

authors： Hatke AT,Deng H,Liu Y,Engel LW,Pfeiffer LN,West KW,Baldwin KW,Shayegan M

更新日期：2019-03-15 00:00:00

abstract：:We tested how sediment trapping by hydroelectric dams affects tropical estuaries by comparing two dammed and two undammed rivers on Mexico's Pacific coast. We found that dams demonstrably affected the stability and productivity of the estuaries. The two rivers dammed for hydroelectricity had a rapid coastal recession ...

journal_title：Science advances

authors： Ezcurra E,Barrios E,Ezcurra P,Ezcurra A,Vanderplank S,Vidal O,Villanueva-Almanza L,Aburto-Oropeza O

更新日期：2019-03-13 00:00:00

abstract：:In sickle cell disease, the aberrant assembly of hemoglobin fibers induces changes in red blood cell morphology and stiffness, which leads to downstream symptoms of the disease. Therefore, understanding of this assembly process will be important for the treatment of sickle cell disease. By performing the highest spati...

journal_title：Science advances

authors： Castle BT,Odde DJ,Wood DK

更新日期：2019-03-13 00:00:00

abstract：:Under rapid high-temperature, high-pressure loading, lattices exhibit complex elastic-inelastic responses. The dynamics of these responses are challenging to measure experimentally because of high sample density and extremely small relevant spatial and temporal scales. Here, we use an x-ray free-electron laser providi...

journal_title：Science advances

authors： Brown SB,Gleason AE,Galtier E,Higginbotham A,Arnold B,Fry A,Granados E,Hashim A,Schroer CG,Schropp A,Seiboth F,Tavella F,Xing Z,Mao W,Lee HJ,Nagler B

更新日期：2019-03-08 00:00:00

abstract：:The Late Paleogene surface height and paleoenvironment for the core area of the Qinghai-Tibetan Plateau (QTP) remain critically unresolved. Here, we report the discovery of the youngest well-preserved fossil palm leaves from Tibet. They were recovered from the Late Paleogene (Chattian), ca. 25.5 ± 0.5 million years, p...

journal_title：Science advances

authors： Su T,Farnsworth A,Spicer RA,Huang J,Wu FX,Liu J,Li SF,Xing YW,Huang YJ,Deng WY,Tang H,Xu CL,Zhao F,Srivastava G,Valdes PJ,Deng T,Zhou ZK

更新日期：2019-03-06 00:00:00

abstract：:Spin caloritronics has recently emerged from the combination of spintronics and thermoelectricity. Here, we show that flexible, macroscopic spin caloritronic devices based on large-area interconnected magnetic nanowire networks can be used to enable controlled Peltier cooling of macroscopic electronic components with ...

journal_title：Science advances

authors： da Câmara Santa Clara Gomes T,Abreu Araujo F,Piraux L

更新日期：2019-03-01 00:00:00