Results 21 to 30 of about 1,975 (180)

Ultra-low temperature conservation of Brazilian Pine embryogenic cultures

Anais da Academia Brasileira de Ciências, 2014
This study aimed to establish a cryopreservation protocol for embryogenic cultures of A. angustifolia, enabling the ex situ conservation of the species.
GRASIELA DEMARCHI, VALDIR M. STEFENON, NEUSA STEINER, FELIPE N. VIEIRA, LIRIO L. DAL VESCO, MIGUEL P. GUERRA   +5 more
doaj   +1 more source

A New Vista of Opportunity in Diabetes Management: Natural Product‐Based β‐cell Preservation

Food Chemistry International, EarlyView.
Preserving functional β‐cells via natural products offers promising strategy for diabetes treatment. ABSTRACT A defining characteristic of diabetes is β‐cell failure, in which β‐cells cannot modulate insulin secretion to compensate for escalating insulin resistance, pushing forward disease development.
Yi‐San Lee, Tien‐Fen Kuo, Chun‐Yen Yang, Greta Yang, Wen‐Chin Yang   +4 more
wiley   +1 more source

An Investigation of the Relationship Between Central Bank Unconventional Monetary Policy and Bitcoin Activity

International Journal of Finance &Economics, EarlyView.
ABSTRACT This article investigates whether the unconventional monetary policy (UMP) measures pursued by the Federal Reserve, the Bank of England, the Bank of Japan, and the European Central Bank since the Global Financial Crisis (GFC) are associated with an appetite for cryptocurrency.
Niamh Wylie, Martha O'Hagan‐Luff
wiley   +1 more source

Comparison of seedling growth among three co-occurring varieties of Araucaria angustifolia (Bertol.) Kuntze under greenhouse conditions

Acta Botânica Brasílica, 2010
Araucaria angustifolia (Bertol.) Kuntze is a tall, long-lived tree species, which grows as an emergent tree in the araucaria forests of southern Brazil. Four varieties have been described for this species, and three of them were selected for this study: "
André Luiz Coutinho, Lúcia Rebello Dillenburg   +1 more
doaj   +1 more source

Exchange Rates and Sovereign Risk: A Nonlinear Approach Based on Local Gaussian Correlations

International Journal of Finance &Economics, EarlyView.
ABSTRACT We empirically assess the interlinkages between sovereign risk, measured in terms of CDS spreads, and exchange rates for a sample of emerging markets. Our period of analysis includes episodes of severe stress, such as the Global Financial Crisis, the COVID‐19 pandemic, and the Ukrainian War.
Reinhold Heinlein, Gabriella D. Legrenzi, Scott M. R. Mahadeo   +2 more
wiley   +1 more source

Ajustes morfológicos e fisiológicos em plantas jovens de Araucária angustifolia (Bertol.) Kuntze em resposta ao sombreamento

Hoehnea
Este trabalho avaliou a capacidade de plantas de Araucaria angustifolia em ajustar alguns aspectos de sua morfologia e fisiologia a diferentes condições de luz. As plantas foram submetidas a irradiação plena e sombreamento (redução de 90%).
Ana Maria Soares Franco, Lúcia Rebello Dillenburg   +1 more
doaj   +1 more source

Evaluation of DNA/Chromosome Integrity and Cell Death in Human Metabolically Noncompetent and Competent Cells Exposed to N′‐(3,5‐Difluorobenzylidene)Pyridine‐4‐Carbohydrazide

Journal of Applied Toxicology, EarlyView.
ABSTRACT The N‐acylhydrazone scaffold is recognized as a privileged structure for the design of bioactive substances with increasing applications in medicinal chemistry research. Ensuring the safety of newly developed molecules is a critical step for both human health and environmental protection. Accordingly, this study aimed to evaluate the cytotoxic
Larissa Ribeiro Canuto Santos, Jéssica Natalia Barbosa de Almeida, Camila Cavalleiro Frias, Wanda Pereira Almeida, Edson Luis Maistro   +4 more
wiley   +1 more source

In vitro induced cold memory fails to enhance embryogenic cultures development in Araucaria angustifolia [PDF]

Anais da Academia Brasileira de Ciências
This research aimed to study how exposing somatic embryos of Araucaria angustifolia to cold temperatures in vitro could enhance somatic embryogenesis. The somatic embryos were induced from immature zygotic embryos, grown for 120 days, and then subjected ...
GABRIEL ANTÔNIO P. DE MATOS, EVELYN L. DOS SANTOS, YOHAN FRITSCHE, THIAGO S. ORNELLAS, NEUSA STEINER, VALDIR MARCOS STEFENON   +5 more
doaj   +1 more source

A review of the introduced forest pests in Brazil [PDF]

Pesquisa Agropecuária Brasileira, 2016
: Special attention should be given to forest plantings in order to minimize the probability of exotic pest introduction and, consequently, of production losses.
Guilherme Schnell e Schühli, Susete Chiarello Penteado, Leonardo Rodrigues Barbosa, Wilson Reis Filho, Edson Tadeu Iede   +4 more
doaj   +1 more source

Low‐Dose Chlorothalonil Induces Testicular Injury Through Disruption of Steroidogenic Signaling in Adult Male Mice

Journal of Applied Toxicology, EarlyView.
ABSTRACT Chlorothalonil (CHL) is a widely used organochlorine fungicide frequently detected in environmental and food matrices. Although increasing evidence indicates adverse effects in nontarget species, the mechanisms underlying CHL‐induced male reproductive toxicity remain incompletely understood.
Cristiana Livramento Oliveira Pinto, Nicoly Caixêta Gonçalves, Paula Rafaela Queiroz da Silva, Ludmila Rodrigues Pontes, Juliana Reis Machado, Virmondes Rodrigues Jr., Hugo Felix Perini, Gláucia Eloisa Munhoz de Lion Siervo   +7 more
wiley   +1 more source