Reset
Showing 20 of 7,048 academic articles

Synthesis and Characterization of Four Random copolymers Containing Fluorene as Electron Donors and Benzotriazole, Benzothiadiazole, Pyrido[3,4-b]pyrazine as Electron Acceptors

Shuang Chen, Lingqian Kong, Chaolei Ban, Jinsheng Zhao et al. • International Journal of Electrochemical Science (2018)

Four copolymers, poly(fluorene-pyrido[3,4-b]pyrazine) (PFPP), poly(benzotriazole-fluorene-pyrido[3,4-b]pyrazine) (PBTFPP), poly(benzotriazole-fluorene-benzothiadiazole) (PBTFBD), poly(benzothiadiazole-fluorene-benzothiadiazole) (PBDFBD)were...

DOAJ Open Access (DOAJ) DOI: 10.20964/2018.10.16

The Application of Electrospun Titania Nanofibers in Dye-sensitized Solar Cells

Hana Krysova, Arnost Zukal, Jana Trckova-Barakova, Aravind Kumar Chandiran et al. • CHIMIA (2013)

Titania nanofibers were fabricated using the industrial NanospiderTM technology. The preparative protocol was optimized by screening various precursor materials to get pure anatase nanofibers. Composite films were prepared by mixing a comme...

DOAJ Open Access (DOAJ) DOI: 10.2533/chimia.2013.149

Socioeconomic Determinants of Sustainable Technology Adoption and Its Influence on Brazilian Agricultural GVP

Diego Pierotti Procópio, Matheus Wemerson Gomes Pereira, Renato Luiz Sproesser, Elaine Aparecida Fernandes • Economies (2026)

Brazil’s agricultural sector is characterized by persistent productive duality: a technologically advanced export-oriented segment coexists with a large stratum of smallholders generating low economic returns. Understanding the economic det...

DOAJ Open Access (DOAJ) DOI: 10.3390/economies14080322

Debunking the Myths of Vision and Mission Statements: A Content Analysis of FT Ranked Top 100 Business Schools

Siddiqui Kamran Ahmed • SHS Web of Conferences (2021)

The purpose of this paper is to answer seven famous myths about vision and mission statements by analysing the vision and mission statements of FT Ranked Top 100 Business Schools in the world. First myth states that all business schools hav...

DOAJ Open Access (DOAJ) DOI: 10.1051/shsconf/202111503015

Combined Effect of Silica Applications and Nitrogen Fertilizers on Two Rice Cultivars and Infestation Rate by Stem Borer, Chilo agamemnon Bles

AL-Shymaa AL-Mokadem, A. Taha, H. Saleh • Journal of Plant Protection and Pathology (2020)

Field experiments were conducted at Sakha, Kafr El-Sheikh, Egypt; to investigate the effect silica combined with mineral nitrogen on rice yield, and stem borer Chilo agamemnon Bles. Applying potassium ore combined with 92 kg N/fed. Produced...

DOAJ Open Access (DOAJ) DOI: 10.21608/jppp.2020.87017

Melatonin: dual players mitigating drought-induced stress in tomatoes via modulation of phytohormones and antioxidant signaling cascades

Shifa Shaffique, Anis Ali Shah, Sang-Mo Kang, Md. Injamum-Ul-Hoque et al. • BMC Plant Biology (2024)

Abstract Drought stress significantly retards the plant production. Melatonin is a vital hormone, signaling molecule, and bio-regulator of diverse physiological growth and development processes. Its role in boosting agronomic traits under d...

DOAJ Open Access (DOAJ) DOI: 10.1186/s12870-024-05752-8

BIOLOGICAL ASPECTS AND THERMAL REQUIREMENTS OF THE BIRD CHERRY-OAT APHID, Rhopalosiphum padi (LINNAEUS), REARED ON WHEAT SEEDLINGS

A. Shehawy, Abeer Mohammad, Monira El-Fatih • Journal of Plant Protection and Pathology (2015)

The bird cherry-oat aphid, Rhopalosiphum padi (Linnaeus) was studied at 15, 20 and 25oC constant temperatures. Wheat seedlings were offered for feeding and maintaining the aphid, R. padi using the Punctured Ependorf Tube Technique. R. padi ...

DOAJ Open Access (DOAJ) DOI: 10.21608/jppp.2015.75784

<i>Carthamus tinctorius</i> Suppresses LPS-Induced Anti-Inflammatory Responses by Inhibiting the MAPKs/NF-κB Signaling Pathway in HaCaT Cells

So-Yeon Kim, Minji Hong, Ponnuvel Deepa, Kandhasamy Sowndhararajan et al. • Scientia Pharmaceutica (2023)

This study aimed to elucidate the anti-inflammatory activity of C. tinctorius leaves by measuring inflammatory parameters such as nitric oxide (NO) production and mRNA expression of iNOS, interleukin-6 (IL-6), and IL-1β in lipopolysaccharid...

DOAJ Open Access (DOAJ) DOI: 10.3390/scipharm91010014

Levantamento de plantas daninhas aquáticas no reservatório de Alagados, Ponta Grossa-PR Assessment of aquatic plants from Alagados dam, Ponta Grossa-PR

D.C Rocha, D. Martins • Planta Daninha (2011)

O monitoramento de macrófitas da represa Alagados um reservatório artificial de água que abastece parcialmente a população do município de Ponta Grossa-PR se faz necessário, uma vez que resíduos urbanos, bem como dejetos de áreas rurais, sã...

DOAJ Open Access (DOAJ) DOI: 10.1590/S0100-83582011000200001

A large deletion conferring pale green leaves of maize

Guoqi Yao, Hua Zhang, Bingying Leng, Bing Cao et al. • BMC Plant Biology (2023)

Abstract Background The structural basis of chloroplast and the regulation of chloroplast biogenesis remain largely unknown in maize. Gene mutations in these pathways have been linked to the abnormal leaf color phenotype observed in some mu...

DOAJ Open Access (DOAJ) DOI: 10.1186/s12870-023-04360-2

Evolution of Tandem Repeats Is Mirroring Post-polyploid Cladogenesis in Heliophila (Brassicaceae)

Mert Dogan, Mert Dogan, Milan Pouch, Milan Pouch et al. • Frontiers in Plant Science (2021)

The unigeneric tribe Heliophileae encompassing more than 100 Heliophila species is morphologically the most diverse Brassicaceae lineage. The tribe is endemic to southern Africa, confined chiefly to the southwestern South Africa, home of tw...

DOAJ Open Access (DOAJ) DOI: 10.3389/fpls.2020.607893

AY-WB Phytoplasma Secretes a Protein That Targets Plant Cell Nuclei

Xiaodong Bai, Valdir R. Correa, Tania Y. Toruño, El-Desouky Ammar et al. • Molecular Plant-Microbe Interactions (2009)

The fully sequenced genome of aster yellows phytoplasma strain witches' broom (AY-WB; Candidatus Phytoplasma asteris) was mined for the presence of genes encoding secreted proteins based on the presence of N-terminal signal peptides (SP). W...

DOAJ Open Access (DOAJ) DOI: 10.1094/MPMI-22-1-0018

The molecular crosstalk between RECQ helicases and associated proteins in human genetic disorders

Yashaswini Reddy, Gargi Joshi, Swechha Mahapatra, Ipshita Das et al. • Journal of Genetic Engineering and Biotechnology (2026)

RECQ helicases involve a family of DNA unwinding enzymes, namely, RECQ1, Bloom syndrome protein, Werner syndrome protein, RECQL4, and RECQ5. These proteins interact with various proteins to form complexes and carry out a range of physiologi...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.jgeb.2026.100824

Graphene Oxide and Reduced Derivatives, as Powder or Film Scaffolds, Differentially Promote Dopaminergic Neuron Differentiation and Survival

Noela Rodriguez-Losada, Noela Rodriguez-Losada, Rune Wendelbob, M. Carmen Ocaña et al. • Frontiers in Neuroscience (2020)

Emerging scaffold structures made of carbon nanomaterials, such as graphene oxide (GO) have shown efficient bioconjugation with common biomolecules. Previous studies described that GO promotes the differentiation of neural stem cells and ma...

DOAJ Open Access (DOAJ) DOI: 10.3389/fnins.2020.570409

Sexual Dimorphism in Growth Rate and Gene Expression Throughout Immature Development in Wild Type Chrysomya rufifacies (Diptera: Calliphoridae) Macquart

Meaghan L. Pimsler, Meaghan L. Pimsler, Meaghan L. Pimsler, Carl E. Hjelmen et al. • Frontiers in Ecology and Evolution (2021)

Reliability of forensic entomology analyses to produce relevant information to a given case requires an understanding of the underlying arthropod population(s) of interest and the factors contributing to variability. Common traits for analy...

DOAJ Open Access (DOAJ) DOI: 10.3389/fevo.2021.696638

Green synthesis, characterization and functional validation of bio-transformed selenium nanoparticles

S. Vasanthakumar, M. Manikandan, Muthu Arumugam • Biochemistry and Biophysics Reports (2024)

Selenium, an essential micronutrient with potent anticancer and antioxidant properties, the inorganic form of selenium is highly toxic, while organic and elemental nanoforms are more bioavailable and less toxic and have gained attention owi...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.bbrep.2024.101760

Technosignatures Longevity and Lindy's Law

Amedeo Balbi, Claudio Grimaldi • The Astronomical Journal (2024)

The probability of detecting technosignatures (i.e., evidence of technological activity beyond Earth) increases with their longevity, or the time interval over which they manifest. Therefore, the assumed distribution of longevities has some...

DOAJ Open Access (DOAJ) DOI: 10.3847/1538-3881/ad217d