2021-11-05
封面圖上展示的是火星耶澤羅隕石坑的色彩增強光學(xué)圖像,由“毅力號”火星探測器的Mastcam-Z儀器拍攝于2021 年4 月18 日。圖片中前景的平頂山,俗稱科迪亞克孤丘,綿延2.2 千米,寬250 米。它暴露出的古老的層狀巖石,表明了河流三角洲沉積物逐漸堆積的過程,以及之后的洪水來襲。
Enhanced-color optical image of Jezero crater, Mars,taken by?the Per severance rover’s Mastcam-Z instrumenton 18 April 2021.The foreground flat-topped hill,informally named Kodiak butte,is 2.2 kilometers distant and 250meters wide. It exposes ancient layered rocks that indicate gradual deposition of sediments in a river delta, followed by floods.
2021-11-12
封面圖展示的是1只老虎石斑魚(黑帶平鲉)正在礁石群中游弋。老虎石斑魚的壽命可長達116歲。通過對88個品種的基因組分析揭示出了石斑魚壽命的遺傳基礎(chǔ),壽命最短的石斑魚(少鰭平鲉)為11年,壽命超長的糙眼巖魚(阿留申平鲉)可存活超過200年。
A tiger rockfish (Sebastesnigrocinctus ) nestled in a clusterof rocks. Tiger rockfish can liveas long as 116 years. A genomicanalysis of 88 species reveals thegenetic underpinnings of rockfishlife spans, which range from 11years for the shortest-lived species(Sebastes minor ) to >200 yearsfor the ultra-long-lived rougheyerockfish (Sebastes aleutianus ).
2021-11-19
封面圖展示的是木星大氣層的光學(xué)圖像,由“朱諾號”太空探測器拍攝。云頂?shù)念伾虺煞植煌煌?,可能是水、氨和硫化氫銨的混合物。圖中左下方的大型狹長風(fēng)暴被稱為“ 駁船”;在圖中右上方可以看到一個更接近圓形的白色風(fēng)暴。來自朱諾探測器的微波和引力場數(shù)據(jù)有限,尚無法探知這個氣態(tài)巨星風(fēng)暴的深度。
Optical image of Jupiter’satmosphere , taken by the Juno spacecraft. The cloud topcolors vary because of differingcompositions, probably mixtures ofwater, ammonia, and ammoniumhydrosulfide. The large elongatedstorm in the lower left is knownas a barge; a more circular whitestorm is visible at the top right.Microwave and gravitational fielddata from Juno constrain thedepths of the gas giant’s storms.
2021-11-26
炎癥是許多人類疾病的共同特征。此外,越來越明確的是,它也是許多核心生物過程的必要組成部分,包括新陳代謝、傷口愈合及神經(jīng)發(fā)育等。本期特刊重點介紹了我們對炎癥生物學(xué)的最新理解,特別是其在體內(nèi)平衡、細胞死亡、器官間交叉效應(yīng)和病毒感染中的作用。
Inflammation is a commonfeature of many human diseases.Moreover,it is becomin gincreasingly clear that it is alsointegral to a variety of corebiological processes,includingmetabolism, wound healing, andneurological development. Thisspecial issue highlights recentadvances in our understanding ofinflammation biology,especiallyits role in homeostasis,cell death,interorgan cross-talk,and viralinfection.(陶陶 編譯)