Results 41 to 50 of about 918 (176)

Fraksinasi Flavonoid Spirulina platensis dengan Metode Kromatografi Lapis Tipis dan Aktivitas Inhibisi Enzim α-Glukosidase

open access: yesJurnal Kelautan Tropis, 2022
Spirulina platensis is a type of Cyanobacterium microalgae that forms multicellular helicoidal filaments. Spirulina platensis contains primary and secondary metabolites. The type and amount of the active compound Spirulina platensis depends on the method
Hartoyo Notonegoro   +3 more
doaj   +1 more source

Contribuição do plasma rico em plaquetas na reparação óssea de defeitos críticos criados em crânios de camundongos Platelet-rich plasma contribute to the process of bone repair of critical defects created in the calvaria of mice

open access: yesCiência Rural, 2010
No presente estudo, foram avaliados, de forma macro e microscópica, os resultados da aplicação do PRP em defeitos ósseos críticos de 6,0mm de diâmetro confeccionados em calvária de 24 camundongos isogênicos C57BL/6 jovens, separados em dois grupos ...
Betânia Souza Monteiro   +7 more
doaj   +1 more source

Recobrimento da liga Ti-6Al-4V com hidroxiapatita pelo método sol-gel e sua aplicação a hastes femorais não-cimentadas Coating of Ti-6Al-4V alloy with hydroxyapatite by using sol-gel method and its application to non-cemented femoral stem

open access: yesCerâmica, 2008
O recobrimento de ligas metálicas com cerâmicas bioativas visa acelerar a formação óssea ao redor do implante, contribuindo para a sua estabilização. Neste trabalho estudou-se a fase cerâmica de hidroxiapatita depositada pelo processo sol-gel em chapas ...
E. P. Avés   +5 more
doaj   +1 more source

Reproductive outcome after frozen embryo transfer with hormone replacement therapy according to luteal‐phase support protocol: systematic review and network meta‐analysis of randomized controlled trials

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 4, Page 422-432, October 2025.
ABSTRACT Objective To compare reproductive outcome between luteal‐phase support (LPS) protocols for frozen embryo transfer (FET) cycles with hormone replacement therapy (HRT). Methods A search was conducted in MEDLINE, Scopus, LILACS, EMBASE, Scielo.br, PROSPERO, CINAHL, PsycINFO, AMED, ClinicalTrials.gov, ICTRP, the Cochrane Library and conference ...
A. Etrusco   +11 more
wiley   +1 more source

Propiedades físicas y químicas de materiales tipo hidroxiapatita sintetizados a partir de residuos de la industria alimentaria y empleando un método sol-gel modificado

open access: yesRevista Minerva, 2022
El aprovechamiento de residuos industriales es parte fundamental del paradigma de la economía circular. El presente trabajo muestra que pueden ser sintetizados materiales sólidos tipo hidroxiapatita a partir de residuos de la industria alimentaria (i.e.
José Galicia Ayala   +2 more
doaj   +1 more source

Mineral acquisition from a different angle – how the root angle in cereals determines nutrient uptake

open access: yesNew Phytologist, Volume 248, Issue 2, Page 576-586, October 2025.
Summary Plant roots are vital for absorbing soil resources and directly impact crop productivity. Because nutrients are unevenly distributed through soil layers, root system architecture (RSA) is a key trait influencing nutrient uptake. Shallow RSA can enhance access to surface nutrients, while steeper architectures help reach deeper nutrients.
Frederik J. T. van der Bom   +3 more
wiley   +1 more source

Efeitos da Coalescência de Poros e Segregação de Fases no Sistema de Óxidos de Vanádio V, Cério IV e Titânio IV Obtido a Partir de Precursor Gel

open access: yesRevista de Ciências Exatas e Tecnologia, 2021
ResumoOs materiais cerâmicos semicondutores possuem amplo espectro de aplicações e alguns sistemas quaternários de óxidos metálicos costumam ser bem versáteis. Um destes sistemas é composto majoritariamente por óxidos de titânio, cério e vanádio TiO2-CeO2-V2O5.
Daniel Branco de Morais   +5 more
openaire   +1 more source

Salivary/Serum Progesterone Ratio Differs Between Menstrual Cycle Phases but Not Between Populations: Implications for Health, Reproductive, and Behavioral Research

open access: yesAmerican Journal of Human Biology, Volume 37, Issue 7, July 2025.
Scatterplot of paired measurements of PFree‐SAL (y‐axis, log scale) versus PTotal‐VEN (x‐axis, log scale) for each of our 36 Bolivian study participants. Dotted diagonals represent lines of constant uptake fraction (UF = PFree‐SAL/PTotal‐VEN) from 0.2% to 100%. The solid red line represents the linear regression model for luteal phase pairs (red dots),
Virginia J. Vitzthum   +4 more
wiley   +1 more source

Kunststoffe der Zukunft? Interdisziplinäre Analyse biobasierter und biologisch abbaubarer Polymere: Fortschritte in der Chemie, gesellschaftliche Perspektiven und ökologische Auswirkungen

open access: yesAngewandte Chemie, Volume 137, Issue 23, June 2, 2025.
Dieser interdisziplinäre Artikel untersucht das Potenzial biologisch abbaubarer und biobasierter Polymere (BBPs) zur Bewältigung der Plastikverschmutzung und der Entstehung von Mikroplastik. Er behandelt die Auswahl der Rohstoffe, chemische Modifikationen, Nutzung sowie Entsorgungsstrategien, einschließlich biologischem Abbau und Umweltauswirkungen von
Sara T. R. Velasquez   +5 more
wiley   +1 more source

Drastic mycorrhizal community shifts in Sceptridium ferns during the generation transition from fully mycoheterotrophic gametophytes to photosynthetic sporophytes

open access: yesNew Phytologist, Volume 245, Issue 4, Page 1705-1717, February 2025.
Summary Many plant species experience a prolonged subterranean phase during which they rely entirely on mycorrhizal fungi for carbon. While this mycoheterotrophic strategy spans liverworts, lycophytes, and ferns, most empirical research has centered on angiosperms.
Kenji Suetsugu   +5 more
wiley   +1 more source

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