Results 11 to 20 of about 22,874 (214)

Field‐aligned current distribution in the transition current system [PDF]

Journal of Geophysical Research: Space Physics, 2004
The interactions of coronal mass ejections with the Earth's magnetosphere are interesting because they often lead to extreme forcing of magnetospheric convection. Here we consider the initial interaction of a CME with the magnetosphere for the specific case in which there is a sharp increase in the dynamic pressure (interplanetary shock) that is ...
Belenkaya, Elena S., Alexeev, Igor I., Clauer, C. Robert   +2 more
openaire   +2 more sources

Thinning of field‐aligned currents

Geophysical Research Letters, 1982
It is common to describe the field‐aligned currents associated with auroral arcs in terms of an Alfven wave propagating earthward. Taking account of convection, the wave can be stationary relative to the earth with its normal nearly perpendicular to the field. Far enough ahead of the wave linear theory is valid and here theory is restricted to both the
openaire   +1 more source

Signatures of field‐aligned currents in Saturn's nightside magnetosphere [PDF]

Geophysical Research Letters, 2009
We report first results of a survey of near‐simultaneous and near‐conjugate magnetic field perturbations observed over Saturn's northern and southern nightside auroral regions on ∼40 periapsis passes of the Cassini spacecraft during 2008. Structured azimuthal fields that are generally anti‐symmetric north and south were observed at auroral latitudes on
Arridge, CS, Coates, AJ, Talboys, DL, Bunce, EJ, Cowley, SWH, Dougherty, MK, Khurana, KK   +6 more
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Field-aligned currents in the magnetosphere

Geofísica Internacional, 1991
Las corrientes alineadas con el campo en la magnetosfera fluyen en todas partes, no s6lo a altas 1"-titudes sino también a medianas y bajas. Sin embargo, su detecci6n con satcHites solo ha sido posible en la región por encima de las zonas aurorales. La existencia de estas corrientes a medianas y bajas latitudes se puede inferir de un análisis de los ...
openaire   +2 more sources

On the structure of field-aligned currents in the mid-altitude cusp [PDF]

Annales Geophysicae, 2006
Abstract. We analyse two crossings of the polar cusp at mid-altitudes (≈4 RE) by Cluster in order to study the structure of field-aligned currents associated with the injection of magnetosheath plasma. The current density is deduced independently from magnetic field and from particle flux measurements.
A. Marchaudon, A. Marchaudon, J.-C. Cerisier, J.-M. Bosqued, C. J. Owen, A. N. Fazakerley, A. D. Lahiff   +6 more
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Simultaneous field‐aligned currents at Swarm and Cluster satellites [PDF]

Geophysical Research Letters, 2015
AbstractWe show for the first time, with direct, multispacecraft calculations of electric current density, and other methods, matched signatures of field‐aligned currents (FACs) sampled simultaneously near the ionosphere at low (~500 km altitude) orbit and in the magnetosphere at medium (~2.5 RE altitude) orbits using a particular Swarm and Cluster ...
M. W. Dunlop, J.‐Y. Yang, Y.‐Y. Yang, C. Xiong, H. Lühr, Y. V. Bogdanova, C. Shen, N. Olsen, Q.‐H. Zhang, J.‐B. Cao, H.‐S. Fu, W.‐L. Liu, C. M. Carr, P. Ritter, A. Masson, R. Haagmans   +15 more
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Therapeutic Apheresis in Nigeria: A Multi‐Center Summary of Abstracts From the Inaugural Nigerian Society for Apheresis Scientific Meeting

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye, Chimezie Okwuonu, Evelyn Idam, Folasade Adelekan‐Popoola, Shakirat Gold‐Olufadi, Olufunto Olufela Kalejaiye, Abdullateef Ogala, Zinnah Aloziem, Blossom Amamchukwu, Patience Elimia, Mkpoikanabasi Obot‐Obot, Henry Mbakwe, Praises Maduagwuna, Olatunji Akinrodoye, Chiamaka Anyanwu, Benjamin Anyanwu, Adedamola Akinsiku, Oluwatoyin A. Akinsiku, Muzamil O. Hassan, Fatiu A. Arogundade, Olalekan E. Ojo, Homayemem Weli, Jesupelumi Adenihun, Aderemi Adelaja, Ebun Bamgboye, Olalekan Olatise, Ade E. Faponle, Ayoola Odeyemi, Michael Muoka, Stephen Asaolu, Qudrat Busari, Blessing Dawudu, Michael Naiyeju, Rasheed A. Balogun   +33 more
wiley   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Current‐voltage relationship in downward field‐aligned current region [PDF]

Journal of Geophysical Research: Space Physics, 2005
Field‐aligned electrons accelerated upward from the ionosphere to the magnetosphere are the principal charge carriers in the auroral downward field‐aligned current region. Current densities, typically of the order of a few μAm−2, are sustained by potential drops of several 100 V up to a few kV.
Alexandra P. Cran‐McGreehin, Andrew N. Wright   +1 more
openaire   +1 more source