Results 41 to 50 of about 142,086 (170)

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

Caracterização Reológica e Óptica de Margarinas [PDF]

open access: yes, 2012
As margarinas são sistemas multifásicos complexos, constituídos por uma fase líquida aquosa dispersa numa fase líquida lipídica contínua, e cristais de gordura para estabilizar a fase dispersa.
Agulheiro-Santos, A.C.   +2 more
core  

Segregação de Fases e Rearranjo Morfológico no Sistema de Óxidos TiO2-CeO2-V2O5 Obtido a Partir de um Precursor Gel

open access: yesRevista de Ciências Exatas e Tecnologia, 2021
ResumoOs sistemas de óxidos cerâmicos são frequentemente investigados para os mais diversos propósitos, sejam como refratários, pigmentos, cerâmicas eletroeletrônica ou semicondutores fotocatalíticos, entre várias outras aplicações. Muitos deles, como a alumina, a sílica, a zircônia e a titânia, acabam por se tornar ótimas matrizes adsorventes e de ...
Daniel Branco 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

Efektivitas gel ekstrak ocimum basilicum L. 15% terhadap jumlah sel neutrofil pada fase inflamasi pasca ekstraksi gigi tikus wistar: Studi Eksperimental

open access: yesJurnal Kedokteran Gigi Universitas Padjadjaran
Ida Ayu Narita Narindra Dewi   +2 more
exaly   +2 more sources

Validasi Metode Analisis Penetapan Kadar ?-Mangostin pada Gel Ekstrak Kulit Buah Manggis (Garcinia Mangostana L.) dengan Klt-spektrofotodensitometri [PDF]

open access: yes, 2015
?-mangostin merupakan salah satu derivat xanton yang terkandung dalam kulit buah manggis yang memiliki aktivitas antibakteri terhadap bakteri pemicu jerawat yaitu Staphylococcus aureus. Dalam penelitian ini ekstrak kulit buah manggis diformulasikan dalam
A, D. I. (Dewantara)   +2 more
core  

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

Comparación de la actividad catalítica de Ti-MCM-41 y Ti-BETA en la epoxidación de limoneno

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2002
Se sintetizaron Ti-MCM-41 y Ti-BETA y su actividad catalítica de ambos materiales se comparó en la epoxidación de limoneno, utilizando peróxido de hidrógeno (H202) como agente oxidante.
Jairo Antonio Cubillos-Lobo   +2 more
doaj   +1 more source

Production and characterization of different types of malaria pigment (hemozoin) and their potential use for screening for hemozoin inhibiting drugs [PDF]

open access: yes, 2012
Tese de mestrado. Biologia (Microbiologia Aplicada). Universidade de Lisboa, Faculdade de Ciências, 2012Malarial pigment, hemozoin, appears to modulate the immune system, however it remains controversial if it has stimulatory or inhibitory effects ...
Góis, Ana Margarida Ferreira, 1988-
core  

Pengaruh Penambahan SiO2 Terhadap Karakteristik Dan Kinerja Fotokatalitik Fe3o4/Tio2 Pada Degradasi Methylene Blue [PDF]

open access: yes, 2016
Telah dilakukan penambahan SiO2 pada bahan nanokatalis bermagnet Fe3O4/TiO2 menggunakan larutan Tetraethyl Orthosilicate (TEOS) membentuk Fe3O4/SiO2/ TiO2 dengan tujuan untuk meningkatkan efektivitas katalitik bahan nano komposit Fe3O4/TiO2.
Adi, W. A. (Wisnu)   +2 more
core   +2 more sources

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