Results 71 to 80 of about 140,482 (308)

Determination of UAV Flight Altitude and Time for Optimizing Variable-Rate Nitrogen Prescription Maps for Winter Wheat in the North China Plain

open access: yesAgronomy
An unmanned aerial vehicle (UAV) multi-spectral system provides a monitoring platform to rapidly obtain crop spectral information that can reflect crop nitrogen status for the generation of dynamic variable-rate nitrogen (VRN). To improve the accuracy of
Minne Zhang, Weixia Zhao, Jiusheng Li
doaj   +1 more source

Perceived Displacement explains Wolfpack Effect

open access: yesFrontiers in Psychology, 2014
We investigate the influence of perceived displacement of moving agent-like stimuli on the performance in dynamic interactive tasks. In order to reliably measure perceived displacement we utilize multiple tasks with different task demands.
Matúš eŠimkovic, Birgit eTräuble
doaj   +1 more source

Application of LANDSAT imagery in land use inventory and classification in Nebraska [PDF]

open access: yes
The author has identified the following significant results.
Carlson, M. P., Seevers, P. M.
core   +1 more source

Elbow and knee joint for hard space suits [PDF]

open access: yes, 1986
An elbow or knee joint for a hard space suit or similar usage is formed of three serially connected rigid sections which have truncated spherical configurations. The ends of each section form solid geometric angles, and the sections are interconnected by
Vykukal, H. C.
core   +1 more source

Structural and dynamical characteristics of mesoscopic H$^+$[H$_2$O]$_n$ clusters [PDF]

open access: yes, 2007
Structural and dynamical characteristics pertaining to the solvation of an excess proton in liquid-like nanoclusters of the type [H$_2$O]$_n$ are investigated using Molecular Dynamics experiments. Three different aggregate sizes were analyzed: $n=10,$ 21
Burnham   +31 more
core   +2 more sources

Dammarenediol II enhances etoposide‐induced apoptosis by targeting O‐GlcNAc transferase and Akt/GSK3β/mTOR signaling in liver cancer

open access: yesMolecular Oncology, EarlyView.
Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee   +8 more
wiley   +1 more source

SPRINKLING TECHNIQUE ADVANCEMENT BY NEUROCONTROL METHODS

open access: yesНаучный журнал Российского НИИ проблем мелиорации, 2020
Purpose: of ways to improve operational efficiency of center-pivot sprinkling machines on models of neural network control. Materials and methods. Research and field data collection were carried out in Engels district Saratov region.
D. A. Solovyev   +4 more
doaj   +1 more source

Does Efficient Irrigation Technology Lead to Reduced Groundwater Extraction?: Empirical Evidence [PDF]

open access: yes
Policies that encourage the use of more efficiency irrigation technology are often viewed as effective, politically feasible methods to reduce the consumptive use of water for agricultural production. Despite their widespread use, these policies have not
Lin, C.-Y. Cynthia, Pfeiffer, Lisa
core   +1 more source

Irrigated Acreage in Georgia's Altamaha River Basin During the Drought Year 2000 [PDF]

open access: yes, 2005
Using a "mixed media" approach, which tracts changes in pixel (color) values over the summer indicating changes from dry land to wet land, we have developed estimates for irrigated acreage in the Altamaha River Basin that draws water from ground water or
Krawee Ackaramongkolrotn   +2 more
core  

Tumor mutational burden as a determinant of metastatic dissemination patterns

open access: yesMolecular Oncology, EarlyView.
This study performed a comprehensive analysis of genomic data to elucidate whether metastasis in certain organs share genetic characteristics regardless of cancer type. No robust mutational patterns were identified across different metastatic locations and cancer types.
Eduardo Candeal   +4 more
wiley   +1 more source

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