Results 181 to 190 of about 1,337,955 (380)

I\u27ve Seen the Promised Land: A Letter to Amelia Boynton Robinson

open access: yes, 2014
You asked if I had any thoughts or comments at the end of our visit, and I stood and said nothing. I opened my mouth, but instead of giving you words my throat was sealed by a dam of speechlessness while my eyes wept out all the emotions and heartache ...
Novoa, Mauricio E.
core  

Methods and effectiveness of hybridization of lowbush blueberry (vaccinium angustifoliumait.) and northern highbush blueberry (vaccinium corymbosuml.) at the stage of virginile species [PDF]

open access: yes, 2014
The tested technique makes it possible to obtain sufficient amount of vegetative material for further experimenting. One of the main requirements is toextract seeds from new-gathered hybridized berries without prior stratification.
Morozov, O. V.
core  

Data‐Driven Multi‐Objective Optimization of Large‐Diameter Si Floating‐Zone Crystal Growth

open access: yesAdvanced Theory and Simulations, EarlyView.
This study presents a surrogate‐based Multi‐Objective Optimization framework for Floating Zone silicon crystal growth. An ensemble of Neural Networks is trained on simulation data and combined with Genetic Algorithms to explore trade‐offs in process parameters.
Lucas Vieira   +3 more
wiley   +1 more source

Metabolite and Transcriptomic Changes Reveal the Cold Stratification Process in Sinopodophyllum hexandrum Seeds

open access: yesPlants
Sinopodophyllum hexandrum (Royle) Ying, an endangered perennial medicinal herb, exhibits morpho-physiological dormancy in its seeds, requiring cold stratification for germination.
Rongchun Ning   +4 more
doaj   +1 more source

Phase‐Separation of YAP Mediates AJUBA Super Enhancer Activation to Promote Aberrant Mitosis in Breast Cancer

open access: yesAdvanced Science, EarlyView.
YAP undergoes phase separation to activate the AJUBA super‐enhancer, driving aberrant mitosis through spindle checkpoint dysregulation in breast cancer. This study uncovers a mechanistic link between YAP condensates, super‐enhancer activation, and aneuploidy formation.
Rui Zhang   +8 more
wiley   +1 more source

Bisphenol B Exposure Induces Miscarriage by Suppressing Migration/Invasion and Migrasome Formation

open access: yesAdvanced Science, EarlyView.
BPB (Bisphenol B) exposure up‐regulates ER (estrogen receptor) levels, enhances its interactions with the lnc‐HZ04 promoter region, and thus promotes ER‐mediated lnc‐HZ04 transcription. Subsequently, lnc‐HZ04 suppresses TCF4 (transcription factor 4)‐mediated PKCA (protein kinase C alpha) transcription and subsequently suppresses migration/invasion and ...
Wenxin Huang   +13 more
wiley   +1 more source

Effects of Seed Pretreatments on Seed Germination Characteristics of Sugar Beet (Beta vulgaris) under Drought Stress Conditions

open access: yesپژوهش‌های بذر ایران, 2018
Extended abstract Introduction: Drought stress is one of the major problems in sugar beet production in Iran, and is the most important limiting factor for germination and establishment of sugar beet in the early stages of growth.
Jamal Kiani   +2 more
doaj  

Integrated Transcriptomics Reveals Evolutionary Trajectories and Cell Density‐Dependent Mechanisms in Aldosterone‐Producing Adenomas

open access: yesAdvanced Science, EarlyView.
Aldosterone‐producing adenomas (APAs) develop via two distinct paths: directly from adrenal zona glomerulosa (zG) cells, or stepwise from zG cells through aldosterone‐producing micronodules (APMs) before progressing to APAs. Advanced single‐cell and spatial analyses identified distinct cell states linked to oxidative stress and cell–cell interactions ...
Zhuolun Sun   +7 more
wiley   +1 more source

Ecological studies on some lakes of the Amazon valley

open access: yes, 1967
Of the three types of lakes studied, clear water, white water, and brown water, the white water lakes are the only ones to have a reasonable autochtonous production of organic matter. Owing probably to the lack of mineral salts, the primary production is
Marlier, G.
core  

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