Abstract：
:Meteorite impacts have caused catastrophic perturbations to the global environment and mass extinctions throughout the Earth's history. Here, we present petrographic and geochemical evidence of a possible impact ejecta layer, dating from about 11 Ma, in deep-sea clayey sediment in the Northwest Pacific. This clay layer has high platinum group element (PGE) concentrations and features a conspicuous negative Os isotope anomaly (187Os/188Os as low as ~0.2), indicating an influx of extraterrestrial material. It also contains abundant spherules that include pseudomorphs suggestive of porphyritic olivine as well as spinel grains with euhedral, dendritic and spherical forms and NiO contents as great as 23.3 wt%, consistent with impact ejecta. Osmium isotope stratigraphy suggests a most plausible depositional age of ~11 Ma (Miocene) for this layer, as determined by fitting with the seawater evolution curve. No large impact crater of this age is known on land, even within the relatively large uncertainty range of the relative Os age. Thus, we suggest that an unrecognised impact event in the middle or late Miocene produced the impact ejecta layer of the Northwest Pacific.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Nozaki T,Ohta J,Noguchi T,Sato H,Ishikawa A,Takaya Y,Kimura JI,Chang Q,Shimada K,Ishibashi JI,Yasukawa K,Kimoto K,Iijima K,Kato Ydoi
10.1038/s41598-019-52709-1subject
Has Abstractpub_date
2019-11-20 00:00:00pages
16111issue
1issn
2045-2322pii
10.1038/s41598-019-52709-1journal_volume
9pub_type
杂志文章abstract：:Materials' mechanical properties highly depend on their internal structures. Designing novel structure is an effective route to improve materials' performance. One-dimensional disordered (ODD) structure is a kind of particular structure in silicon carbide (SiC), which highly affects its mechanical properties. Herein, ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-67652-9
更新日期：2020-07-09 00:00:00
abstract：:We have recently reported that repeated systemic treatments of extract from Corydalis yanhusuo alleviate neuropathic pain and levo-tetrahydropalmatine (l-THP) is one of active components from Corydalis. We designed this study to investigate antinociceptive effect of l-THP in acute and chronic pain models and related m...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep37850
更新日期：2016-12-02 00:00:00
abstract：:It is well known that supercritical water is a favourable medium for biomass conversion followed by its hydrodeoxygenation (HDO). Moreover, the actual kinetics and mechanism of reaction occurring in the supercritical water are not yet completely understood, either by experimental or computational approaches. Within th...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-66237-w
更新日期：2020-06-08 00:00:00
abstract：:A highly sensitive bismuth/silver nanoparticles/Nafion-modified screen-printed graphene electrode was fabricated and was utilized for the detection of trace lead (Pb) concentrations in river water samples prior to and after remediation using calamansi (Citrofortunella Microcarpa) rinds in different forms viz., ground ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-80672-9
更新日期：2021-01-14 00:00:00
abstract：:Niemann-Pick type C1 (NPC1) disease is a rare autosomal recessive, neurodegenerative lysosomal storage disorder, which presents with a range of clinical phenotypes and hence diagnosis remains a challenge. In view of these difficulties, the search for a novel, NPC1-specific biomarker (or set of biomarkers) is a topic o...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-06264-2
更新日期：2017-07-24 00:00:00
abstract：:Administration of dibutyl phthalate (DBP) to pregnant rats causes reproductive disorders in male offspring, resulting from suppression of intratesticular testosterone, and is used as a model for human testicular dysgenesis syndrome (TDS). DBP exposure in pregnancy induces focal dysgenetic areas in fetal testes that ap...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-02684-2
更新日期：2017-05-31 00:00:00
abstract：:A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has been fixed in the paper. ...
journal_title：Scientific reports
pub_type： 已发布勘误
doi：10.1038/s41598-019-39022-7
更新日期：2019-05-03 00:00:00
abstract：:We report a method to generate a 3D motor neuron model with segregated and directed axonal outgrowth. iPSC-derived motor neurons are cultured in extracellular matrix gel in a microfluidic platform. Neurons extend their axons into an adjacent layer of gel, whereas dendrites and soma remain predominantly in the somal co...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-021-81335-z
更新日期：2021-01-22 00:00:00
abstract：:Nicotinamide phosphoribosyltransferase (NAMPT) is a rate-limiting enzyme in the salvage pathway of nicotinamide adenine dinucleotide biosynthesis. NAMPT protein is a secreted plasma biomarker in inflammation and in cancer. The NAMPT enzymatic inhibitor, FK866, acts as an inducer of apoptosis and is a cancer therapeuti...
journal_title：Scientific reports
pub_type： 杂志文章,meta分析
doi：10.1038/srep06107
更新日期：2014-08-22 00:00:00
abstract：:The accurate diagnosis of malignant cervical lymphadenopathy remains challenging. In this study, we determined the value of quantitative parameters derived from dual-energy computed tomography (DECT) for differentiating malignant cervical lymphadenopathy caused by thyroid carcinoma (TC), salivary gland carcinoma (SC),...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep31020
更新日期：2016-08-08 00:00:00
abstract：:In the central nervous system of vertebrates, cell bodies of neurons are often assembled as nuclei or cellular layers that play specific roles as functional units. The purpose of this work was to selectively highlight such cell assemblies by magnetic resonance imaging using signals from water protons that are associat...
journal_title：Scientific reports
pub_type： 杂志文章,评审
doi：10.1038/s41598-019-41587-2
更新日期：2019-03-25 00:00:00
abstract：:Membranes with selective superwettability for oil/water separation have received significant attention during the past decades. Hierarchical structures and surface roughness are believed to improve the oil repellency and the stability of Cassie-Baxter state. Diatoms, unicellular photosynthetic algae, possess sophistic...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-01642-2
更新日期：2017-05-03 00:00:00
abstract：:Tench (Tinca tinca L.) is one of the most valued species of the Cyprinidae. This species is commercially important and has been intensively domesticated in recent years. To avoid excessive production losses, the health of farm fish must be maintained. Characterization of the tench gut microbiome can help achieve this ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-61351-1
更新日期：2020-03-10 00:00:00
abstract：:A wide network of interconnected areas was previously found in neuroimaging studies involving normal as well as pathological subjects; however literature seems to suffer from a lack of investigation in glucose metabolism behaviour under olfactory condition. Thus, the present work describe for the first time a pure olf...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep05146
更新日期：2014-06-03 00:00:00
abstract：:YPEL3 that induces cellular senescence in both normal and tumour cells of humans may show altered expression under the influence of incidental mutations. In this study, we proposed the first structure of Native YPEL3 protein and its five possible deleterious mutants-V40M, C61Y, G98R, G108S, and A131T and predicted the...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-72333-8
更新日期：2020-09-17 00:00:00
abstract：:Cattleyak are interspecific hybrids between cattle and yak, exhibiting the same prominent adaptability as yak and much higher performances than yak. However, male infertility of cattleyak resulted from spermatogenic arrest has greatly restricted their effective utilization in yak breeding. In past decades, much work h...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-18607-0
更新日期：2018-01-12 00:00:00
abstract：:In this study, we demonstrate that the lysine methyltransferase G9a inhibits sarcomere organization through regulation of the MEF2C-HDAC5 regulatory axis. Sarcomeres are essential for muscle contractile function. Presently, skeletal muscle disease and dysfunction at the sarcomere level has been associated with mutatio...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep34163
更新日期：2016-09-26 00:00:00
abstract：:Adult neurogenesis occurs in the dentate gyrus of the hippocampus during adulthood and contributes to sustaining the hippocampal formation. To investigate whether neurogenesis-related pathways are associated with hippocampal volume, we performed gene-set enrichment analysis using summary statistics from a large-scale ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-50507-3
更新日期：2019-10-10 00:00:00
abstract：:The mechanism by which the HIV-1 MPER epitope is recognized by the potent neutralizing antibody 10E8 at membrane interfaces remains poorly understood. To solve this problem, we have optimized a 10E8 peptide epitope and analyzed the structure and binding activities of the antibody in membrane and membrane-like environm...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep38177
更新日期：2016-12-01 00:00:00
abstract：:In this paper, phosphorene nanoribbons (PNRs) are theoretically studied using a multiscale simulation flow from the ab initio level to the tight binding (TB) level. The scaling effects of both armchair PNRs (aPNRs) and zigzag PNRs (zPNRs) from material properties to device properties are explored. The much larger effe...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep38009
更新日期：2016-11-29 00:00:00
abstract：:Newly synthesized mitochondrial precursor proteins have to become unfolded to cross the mitochondrial membranes. This unfolding is achieved primarily by mitochondrial Hsp70 (mtHsp70) for presequence-containing precursor proteins. However, the membrane potential across the inner membrane (ΔΨ) could also contribute to u...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-44152-z
更新日期：2019-05-21 00:00:00
abstract：:Incident myocardial infarction (MI) is a leading cause of adult mortality in the United States. However, because MI has a relatively low incidence in the young population, little information exists on the disease in younger adults. Because the retina has the unique quality that its vasculature is readily and noninvasi...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-018-24083-x
更新日期：2018-04-04 00:00:00
abstract：:In experiments that test plant diversity-productivity relationships, the common practice of weeding unsown species and disallowing species colonization may have the unintended consequence of favoring priority effects that maintain niche complementarity in determining productivity. However, in naturally assembled commu...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-70402-6
更新日期：2020-08-07 00:00:00
abstract：:Transistor biosensors are mass-fabrication-compatible devices of interest for point of care diagnosis as well as molecular interaction studies. While the actual transistor gates in processors reach the sub-10 nm range for optimum integration and power consumption, studies on design rules for the signal-to-noise ratio ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-69493-y
更新日期：2020-07-29 00:00:00
abstract：:Current medications inadequately treat the symptoms of chronic pain experienced by over 50 million people in the United States, and may come with substantial adverse effects signifying the need to find novel treatments. One novel therapeutic target is the Transient Receptor Potential A1 channel (TRPA1), an ion channel...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-38852-9
更新日期：2019-02-20 00:00:00
abstract：:The design, fabrication, and characterization of ultra-high responsivity photodetectors based on mesoscopic multilayer MoS2 is presented, which is a less explored system compared to direct band gap monolayer MoS2 that has received increasing attention in recent years. The device architecture is comprised of a metal-se...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-018-19367-1
更新日期：2018-01-19 00:00:00
abstract：:Covert facial mimicry involves subtle facial muscle activation in observers when they perceive the facial emotional expressions of others. It remains uncertain whether prototypical facial features in emotional expressions are being covertly mimicked and also whether covert facial mimicry involves distinct facial muscl...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-61563-5
更新日期：2020-03-13 00:00:00
abstract：:Differential vulnerability among motor neuron (MN) subtypes is a fundamental feature of amyotrophic lateral sclerosis (ALS): fast-fatigable (FF) MNs are more vulnerable than fast fatigue-resistant (FR) or slow (S) MNs. The reason for this selective vulnerability remains enigmatic. We report here that the extracellular...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep27354
更新日期：2016-06-06 00:00:00
abstract：:Peach is an economically import fruit crop worldwide, and serves as a model species of the Rosaceae family as well. However, peach functional genomics studies are severely hampered due to its recalcitrance to regeneration and stable transformation. Here, we report a fast and efficient Agrobacterium rhizogenes-mediated...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-59626-8
更新日期：2020-02-18 00:00:00
abstract：:MicroRNAs (miRNAs) are proposed as potential biomarkers for the diagnosis of numerous diseases. Here, we performed a meta-analysis to evaluate the utility of faecal miRNAs as a non-invasive tool in colorectal cancer (CRC) screening. A systematic literature search, according to predetermined criteria, in five databases...
journal_title：Scientific reports
pub_type： 杂志文章,meta分析
doi：10.1038/s41598-019-45570-9
更新日期：2019-07-01 00:00:00
