Results 41 to 50 of about 819,043 (265)

Construcción social en los huertos de agricultura urbana y la sustentabilidad en la Ciudad de México

Sociedad y Ambiente, 2021
La agricultura urbana en América Latina puede ser determinante para la seguridad alimentaria de los sectores pobres de la sociedad. En la Ciudad de México, esta práctica es aún incipiente, debido a fuertes presiones poblacionales, comerciales y ...
Cecilia Esther Muñoz Cadena
doaj   +1 more source

Chemical evolution of turbulent protoplanetary disks and the Solar nebula

, 2011
This is the second paper in a series where we study the influence of transport processes on the chemical evolution of protoplanetary disks. Our analysis is based on a flared alpha-model of the DM Tau system, coupled to a large gas-grain chemical network.
Aikawa, Aikawa, Aikawa, Aikawa, Aikawa, Andrews, Bauer, Bergin, Bergin, Bethell, Biver, Bockelée-Morvan, Boss, Bradley, Brownlee, Calvet, Cant, Cazaux, Chapillon, Crabtree, D'Alessio, d'Hendecourt, D. Semenov, D. Wiebe, Dickens, Duschl, Dutrey, Dutrey, Dutrey, Finocchi, Fogel, Fukagawa, Gail, Garrod, Glassgold, Glassgold, Glassgold, Glassgold, Gorti, Gorti, Greenberg, Greenberg, Harada, Hasegawa, Heinzeller, Henning, Hersant, Hirose, Hughes, Juhász, Jørgensen, Kalenskii, Kamp, Katz, Kim, Lahuis, Lee, Lee, Lee, Leger, Lynden-Bell, Mazzitelli, Meijerink, Najita, Najita, Pagani, Pascucci, Perez-Becker, Pierce, Pontoppidan, Pontoppidan, Pontoppidan, Prinn, Qi, Qi, Sakai, Salyk, Salyk, Sarrasin, Savin, Schräpler, Semenov, Semenov, Shakura, Shalabiea, Simon, Terada, Turner, Turner, Vasyunin, Vasyunin, Vasyunin, Wakelam, Wakelam, Walsh, Willacy, Willacy, Wolf, Wooden, Wooden, Woods, Woods, Zasowski, Öberg   +103 more
core   +1 more source

The Effect of the Hall Term on the Nonlinear Evolution of the Magnetorotational Instability: I. Local Axisymmetric Simulations [PDF]

, 2002
The effect of the Hall term on the evolution of the magnetorotational instability (MRI) in weakly ionized accretion disks is investigated using local axisymmetric simulations.
Hodgson L. S., James M. Stone, Regos E., Shakura N. I., Takayoshi Sano, Umebayashi T., Umebayashi T.   +6 more
core   +4 more sources

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

FEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source

Strong and Electro-Weak Supersymmetric Corrections to Single Top Processes at the Large Hadron Collider [PDF]

, 2010
We present the one-loop corrections originating from Quantum Chromo-Dynamics (QCD) and Electro-Weak (EW) interactions of Supersymmetric (SUSY) origin within the Minimal Supersymmetric Standard Model (MSSM) to the single-top processes bq -> tq' and qbar q'
G. Macorini, L. Panizzi, S. Moretti, W. Bernreuther   +3 more
core   +3 more sources

The role of histone modifications in transcription regulation upon DNA damage

FEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Heavy quarkonium production in the Regge limit of QCD: from Tevatron to LHC

, 2013
Heavy quarkonium production in the framework of the non-relativistic quantum chromodynamics and leading order of the parton Reggeization approach at the Tevatron and LHC is discussed.
Nefedov, M. A., Saleev, V. A., Shipilova, A. V   +2 more
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Efecto del Capital Intelectual en la Calidad del Servicio Educativo

RIMCIS
En estudios recientes se ha reflexionado sobre el tema de Capital Intelectual (CI) y la relevancia que tiene en las organizaciones para ser competitivas y en la excelencia de las universidades, a través de su efecto en la Calidad del Servicio (CS).
David González-Díaz, David Gómez-Sánchez, Sanjuana Edith Grimaldo-Reyes   +2 more
doaj   +5 more sources

Evolución de la conciencia en sostenibilidad en grados de Educación Infantil y Primaria

Enseñanza de las Ciencias
La educación es esencial para lograr la sostenibilidad, y la formación del profesorado es prioritaria. Esta investigación pretende conocer el nivel de conciencia en sostenibilidad (CS) del alumnado de los grados de Educación Infantil y Primaria de la ...
Jorge Alcántara Manzanares, Jerónimo Torres-Porras, Silvia Medina Quintana, José Antonio López-Fernández, Esther Cuadrado   +4 more
doaj   +1 more source