Results 11 to 20 of about 746,756 (162)

Morphological changes in soybean cultivars subjected to apical dominance removal at phenological stages [PDF]

open access: yesCiência Rural
: This study evaluated the effect of removing apical dominance at phenological stages on the agronomic traits of soybean cultivars. The experiment was conducted in the 2020/2021 growing season inthe teaching-experimental area of the Federal Institute of ...
Júlia Letícia Cassel   +5 more
doaj   +2 more sources

Analysis of the apical constriction using micro-computed tomography and anatomical sections

open access: yesGiornale Italiano di Endodonzia, 2014
Objectives: The aim of this study is to assess the morphology, the prevalence and the topography of the apical constriction (AC) through a tridimensional analysis and compare the results with the available data reported in the literature.
Filippo Citterio   +3 more
doaj   +2 more sources

Notch and Delta are required for survival of the germline stem cell lineage in testes of Drosophila melanogaster.

open access: yesPLoS ONE, 2019
In all metazoan species, sperm is produced from germline stem cells. These self-renew and produce daughter cells that amplify and differentiate dependent on interactions with somatic support cells.
Chun L Ng, Yue Qian, Cordula Schulz
doaj   +2 more sources

Magnetic properties of delta- and kagome-like chains with competing interactions [PDF]

open access: yesJournal of Physics: Condensed Matter, 2023
We study the delta-chain with spin-1 on basal sites and spin- 12 on apical sites. The Heisenberg interaction between neighbor basal spins is antiferromagnetic (AF) and the interaction between basal and apical spins is ferromagnetic (F).
D. Dmitriev, V. Krivnov
semanticscholar   +1 more source

Selective coupling of coherent optical phonons in YBa$_2$Cu$_3$O$_{7-\delta}$ with electronic transitions [PDF]

open access: yes, 2022
We investigate coherent lattice dynamics in optimally doped YBa$_2$Cu$_3$O$_{7-\delta}$ driven by ultrashort ($\sim$ 12 fs) near infrared (NIR) and near ultraviolet (NUV) pulses. Transient reflectivity experiments, performed at room temperature and under
K. Ishioka   +5 more
semanticscholar   +1 more source

A Microcomputed Tomographic Evaluation of Root Canal Morphology of Maxillary Second Premolars in a Pakistani Cohort

open access: yesApplied Sciences, 2021
This study aimed to investigate variations in the root canal morphology of maxillary second premolar (MSP) teeth using microcomputed tomography (micro-CT). Sixty (N = 60) human extracted MSPs were collected and prepared for micro-CT scanning.
Mazen F. Alkahtany   +8 more
doaj   +1 more source

Micro-CT evaluation of maxillary first molars: interorifice distances and internal anatomy of the mesiobuccal root [PDF]

open access: yesBrazilian Oral Research, 2021
: This study aimed to describe the morphometric relationship of root canal orifices on the pulp floor in the presence/absence of mesiobuccal second canal (MB2) in the maxillary first molars and other aspects of its internal anatomy.
Stéphanie Quadros TONELLI   +7 more
doaj   +1 more source

Homologous gene regulatory networks control development of apical organs and brains in Bilateria

open access: yesScience Advances, 2022
Apical organs are relatively simple larval nervous systems. The extent to which apical organs are evolutionarily related to the more complex nervous systems of other animals remains unclear.
R. Feuda, I. S. Peter
semanticscholar   +1 more source

Twist1 interacts with beta/delta-Catenins during neural tube development and regulates fate transition in cranial neural crest cells.

open access: yesDevelopment, 2022
Cell fate determination is a necessary and tightly regulated process for producing different cell types and structures during development. Cranial neural crest cells (CNCCs) are unique to vertebrate embryos and emerge from the neural plate borders into ...
Jessica W Bertol   +16 more
semanticscholar   +1 more source

Obturation of A Mandibular 2nd Molar with the Help of Ultrasonic Irrigation to Clean the Lateral Canal

open access: yesJournal of Bahria University Medical and Dental College, 2021
Apex of root is of great interest for endodontists mainly because of different stages involved in its development and the surrounding tissues. Mandibular molars normally consists of 2 roots, one mesial and one distal.
Hira Abbasi   +3 more
doaj   +1 more source

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