Results 51 to 60 of about 4,440 (177)

Evolution of research on global amphibian declines

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract In the late 1980s, the scientific community became aware of severe, enigmatic amphibian population declines. These declines triggered a wave of research focused on quantifying their extent and identifying key drivers. We used text‐analysis techniques, including topic modeling and geoparsing, to examine the evolution of research focused on ...
Jordann Crawford‐Ash   +6 more
wiley   +1 more source

Undetected cases after implementation of first‐trimester anomaly scan in low‐risk population: insights from the IMITAS study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 1, Page 27-33, January 2026.
ABSTRACT Objective To assess the effectiveness of the first‐trimester anomaly scan (FTAS) performed as part of a centrally steered national screening program in The Netherlands by investigating false‐negative cases with a fetal structural anomaly that was not detected at the FTAS.
K. Bronsgeest   +18 more
wiley   +1 more source

k路覆盖图的新充分条件(New sufficient conditions on k -path-coverable graphs)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2019
Let G be a simple connected graph of order n. A graph G is k-path-coverable if its vertex set V ( G ) can be covered by kor fewer vertex-disjoint paths. In this paper, we give some new sufficient conditions for a graph to be k-path-coverable in terms of ...
JIAHuicai(贾会才)
doaj   +1 more source

STUDENTŲ DALYKINIŲ ELEKTRONINIŲ LAIŠKŲ FUNKCIJOS

open access: yesMokslo Taikomieji Tyrimai Lietuvos Kolegijose, 2019
Dalykiniai elektroniniai laiškai priskiriami prie oficialiosios komunikacijos ir rašomi laikantis gana griežtų formos, turinio formulavimo, etikos bei etiketo, net maketavimo taisyklių, kartu atspindėdami ir iš anksto numanomas kalbos funkcijas bei komunikacines intencijas.
openaire   +1 more source

TEG血栓弹力图同常规凝血试验的关系及TEG血小板图试验的临床应用

open access: yesZhongguo shiyan zhenduanxue, 2012
目的探讨TEG血栓弹力图试验同常规凝血试验的关系,并回顾分析TEG血小板图试验监测抗PLTs药物的临床效果。方法①100例患者,每位分别同时抽取静脉血,做TEG血栓弹力图、常规凝血(aPTT、PT、TT、Fbg)和血常规检测。采用线性相关与回归、多元线性回归与偏回归,评估各参数间关系。②对TEG血小板图试验监测抗PLTs药物的疗效进行回顾性分析。③着重分析MA与PLTs数量的关系。结果 ①MA和CI值均分别与Fbg、PLTs和aPTT,R与aPTT、PT和TT,A与PLTs、aPTT ...
谭延国, 张岩, 王芳, 孙莉
doaj  

Study of the effects of temperature on the growth of two strains of petroleum bacteria by microcalorimetry(微量量热法研究温度对两种石油菌生长的影响)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2000
本文采用微量量热法测定了两种石油菌在不同温度下的生长热谱图。按限制性条件下微生物生长模型,用三点法进行了数学处理,得出了生长速率常数(k);计算机拟合k-T非线性方程,得到了石油菌I,II的最佳生长温度(Topt)分别为322.07K和322.85K。按阿仑尼乌斯公式和过渡态理论计算得到有关热动力学函数,并根据所得结果对两种石油菌的生长代谢过程进行了热动力学分析。
YULi(于丽)   +4 more
doaj   +1 more source

Palette-based image recoloring based on moving least squares(基于移动最小二乘的图像重着色)

open access: yesZhejiang Daxue xuebao. Lixue ban
In recent years, palette-based image recoloring techniques have garnered widespread attention and application across various domains such as graphic design, photo editing, and advertising production.
周家伟(ZHOU Jiawei)   +5 more
doaj   +1 more source

类星体色指数的<italic>K</italic>订正及双色图 [PDF]

open access: bronze, 1981
毓麟 卞   +4 more
openalex   +1 more source

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