Results 41 to 50 of about 41,581 (262)

Leaf Pruning End-Effector for Adaptive Positioning at the Branch–Stem Junction of Tomato Plants

Agriculture
To address the needs of mechanized tomato leaf pruning, this paper presents the design of an end-effector capable of adaptive positioning at the base of the branch.
Yuhuan Sun, Wenqiao Lu, Qingchun Feng, Liang He, Hongda Diao, Yuhang Ma, Liping Chen   +6 more
doaj   +1 more source

Technology of double casing tubes & a binary cycle system for hole cleaning for CBM multi-branch horizontal wells

Natural Gas Industry B, 2017
At present, the aeration-assisted cutting-carrying technology is faced with complexities in the drilling of CBM multi-branch horizontal wells. For example, the aerating pressure is hardly maintained, and the borehole instability may happen.
Yong Yang, Shuqing Cui, Fengrui Wang, Bin Zhang, Yuanyong Ni, Jiaxun Shen, Zhenxuan Li, Shuping Liu   +7 more
doaj   +1 more source

Intrapatient tumour heterogeneity and clonal evolution in an autopsy study of metastatic salivary gland cancer

Molecular Oncology, EarlyView.
Tumour heterogeneity and clonal evolution of metastatic salivary gland cancer were evaluated in two patients with adenoid carcinoma and one patient with myoepithelial carcinoma. Radiology‐guided autopsy enabled multi‐region sampling (total samples n = 149), followed by whole‐genome sequencing and phylogenetic reconstruction (17 tumour samples, 4–7 per ...
Gerben Lassche, Niels J. van Ruitenbeek, Charlotte Adang, Luke O'Gorman, Pui Yuen Lee, Willemijn M. Klein, Adriana C. H. van Engen‐van Grunsven, Jack A. Schalken, Sander Bervoets, Gerald W. Verhaegh, Carla M. L. van Herpen   +10 more
wiley   +1 more source

How cutting types and shading levels influence the vegetative propagation of Pereskia aculeata?

Brazilian Journal of Biology, 2023
Information from Pereskia aculeata Miller (Cactaceae) responses regarding the portion of the stem cuttings branch parental plants and the shading level need to be investigated in order to establish techniques for their producing seedlings.
C. C. Santos, R. da S. Bernardes, J. M. Silverio, N. M. Lima, A. Goelzer, A. dos S. Dias, S. de P. Q. Scalon, M. do C. Vieira   +7 more
doaj   +1 more source

ADP‐ribosylation: An emerging regulator of the epigenome

Molecular Oncology, EarlyView.
ADP‐ribosylation has emerged as a dynamic epigenetic signaling mechanism that modifies histones and chromatin‐associated proteins. Through coordinated PARylation and MARylation, it integrates with other histone modifications to regulate chromatin structure, transcription factor activity, and gene expression, influencing genome function and disease ...
Cristel V. Camacho, Chenqian Liu, W. Lee Kraus   +2 more
wiley   +1 more source

Simulation and Testing of Grapevine Branch Crushing and Collection Components

Agriculture
Aiming at the problem of the low rate of resource utilization of large amounts of grape branch pruning and the high cost of leaving the garden, we design a kind of grape branch picking and crushing collection machine that integrates the collection of ...
Lei He, Zhimin Wang, Long Song, Pengyu Bao, Silin Cao   +4 more
doaj   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

FEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard, Emma‐Jayne Proctor, Jiawa Wang, Nikolas P. Johnston, Andrew Hayes, Georgia McCorkell, Haibo Yu, Jai Tree, Mark R. Davies, Mark J. Walker, Ronald Sluyter, Stephan Brouwer, Martina L. Sanderson‐Smith   +12 more
wiley   +1 more source

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

FEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

Finite Element Explicit Dynamics Simulation of an Impact Cutting Mechanism Analysis of Populus tomentosa Branches

BioResources
The branch impact failure mechanism has gradually received attention from scholars, along with the application of impact cutting methods in plantation forest pruning.
Shihong Ba, Yichen Ban, Kun Lyu, Yang Liu, Jian Wen, Wenbin Li   +5 more
doaj   +2 more sources

Branch-Cutting Beetles [PDF]

Nature, 1880
IT is rather curious that the story which Mr. Ober was told in the Carribbees (NATURE, vol. xxii. p. 216) should be generally believed in Southern Brazil also, viz., that a large beetle “seizes a small branch of a tree between its enormously long nippers, and buzzes round and round the branch till this is cut off.” Only in the Antilles this cutting of ...
openaire   +1 more source