22 research outputs found
Meta-Analysis Comparing Neurohumoral Antagonist Use in Patients ≥75 Years Versus <75 Years Receiving Cardiac Resynchronization Therapy
No full text
Author response image 1. Confocal Spinning Disk images of the additional lipid monolayer mixture (1:2:1 DOPC:DPPC:Cholesterol).
No full textThe cell membrane is a heterogeneously organized composite with lipid-protein micro-domains. The contractile actin cortex may govern the lateral organization of these domains in the cell membrane, yet the underlying mechanisms are not known. We recently reconstituted minimal actin cortices (MACs) (Vogel et al., 2013b) and here advanced our assay to investigate effects of rearranging actin filaments on the lateral membrane organization by introducing various phase-separated lipid mono- and bilayers to the MACs. The addition of actin filaments reorganized membrane domains. We found that the process reached a steady state where line tension and lateral crowding balanced. Moreover, the phase boundary allowed myosin driven actin filament rearrangements to actively move individual lipid domains, often accompanied by their shape change, fusion or splitting. Our findings illustrate how actin cortex remodeling in cells may control dynamic rearrangements of lipids and other molecules inside domains without directly binding to actin filaments
Recent Results From the EU POF-PLUS Project: Multi-Gigabit Transmission Over 1 mm Core Diameter Plastic Optical Fibers
No full textRecent activity to achieve multi-gigabit transmission over 1 mm core diameter graded-index and step-index plastic optical fibers for distances up to 50 meters is reported in this paper. By employing a simple intensity-modulated direct-detection system with pulse amplitude or digital multi-tone modulation techniques, low-cost transceivers and easy to install large-core POFs, it is demonstrated that multi-gigabit transmission up to 10 Gbit/s over 1-mm core diameter POF infrastructure is feasible. The results presented in this paper were obtained in the EU FP7 POF-PLUS project, which focused on applications in different scenarios, such as in next-generation in-building residential networks and in datacom applications
Author response: Control of lipid domain organization by a biomimetic contractile actomyosin cortex
No full text
Elliptic K3 Surfaces with Abelian and Dihedral Groups of Symplectic Automorphisms
No full textWe analyze K3 surfaces admitting an elliptic fibration E and a finite group G of symplectic automorphisms preserving this elliptic fibration. We construct the quotient elliptic fibration E/G comparing its properties to the ones of E.
We show that if E admits an n-torsion section, its quotient by the group of automorphisms induced by this section admits again an n-torsion section, and we describe the coarse moduli space of K3 surfaces with a given finite group contained in the Mordell–Weil group.
Considering automorphisms coming from the base of the fibration, we find the Mordell– Weil lattice of a fibration described by Kloosterman, and we find K3 surfaces with dihedral groups as group of symplectic automorphisms. We prove the isometries between lattices described by the author and Sarti and lattices described by Shioda and by Greiss and Lam
Radio sources in the Chandra Galactic Bulge Survey
No full textWe discuss radio sources in the Chandra Galactic Bulge Survey region. By cross-matching the X-ray sources in this field with the NRAO VLA Sky Survey archival data, we find 12 candidate matches. We present a classification scheme for radio/X-ray matches in surveys taken in or near the Galactic plane, taking into account other multiwavelength data. We show that none of the matches found here is likely to be due to coronal activity from normal stars because the radio to X-ray flux ratios are systematically too high. We show that one of the source could be a radio pulsar, and that one could be a planetary nebula, but that the bulk of the sources are likely to be background active galactic nuclei (AGN), with many confirmed through a variety of approaches. Several of the AGN are bright enough in the near-infrared (and presumably in the optical) to use as probes of the interstellar medium in the inner Galaxy
UA-R-GC-1914-01-01-1989-03_Page-044
No full text- 4 -
Middle East Times. He will be sending an article summarizing the
event to all of the newspapers in order to make sure that it g~t5
better c:overage.
Mr. Pelowski added that Mr. Greiss has been very suc:c:essful in
meeting the goals of the rec:ently approved Public: Relations
Polic:y within Egypt. Sinc:e Mr. Greiss assumed his position as
Direc:tor of Public: Relations there has been muc:h less
disinformation about A.U.C ••
The c:ommittee then c:ontinued its session with only the
trustees, associate trustees, Dr. Pedersen, and the reporter
present.
Dr. Pedersen again brought up the issue of the translation
projec:t (see p.l) in order to disc:uss some potential logistic:al
problems. A few of the foreseen c:hanges will be the need for
A.U.C~ to bec:ome a regional rather than just Egyptian press and
to start publishing more in Arabic:. This might entail additional
staffing. Dr. Pedersen also pointed out that there c:ould be many
bureacratic problems with shipping, so A.U.C. may have to
c:onsider an alternative publishing site outside "of Egypt.
Finally, some of the Americ:an authors who offered the royalties
from their Arabic: translation may have diffic:ulty being published
in the Middle East. Dr. Pedersen stated his desire that the
Committee approve the projec:t in princ:iple so that A.U.C. c:ould
c:ontinue exploring it with the Ambassador and with Western
authors.
Mr. Devine asked Dr. Pedersen if A.U.C. will have to negotiate
separate c:ontrac:ts with eac:h author.
Dr. Pedersen replied that in princ:iple Mr. Collins will help
organize the spec:ific: authors involved.
Mr. Devine then asked Dr. Pedersen if the Press is physic:ally
c:apable of handling the new translation projec:t.
Dr. Pedersen felt that A.U.C. would have to explore the
prac:tic:al issues of a translation projec:t "very c:arefully." He
emphasized that the c:onsent of the Board is important for the
c:ontinued exploration of the projec:t sinc:e its approval would be
need to show top level c:ommittment to the Ambassador and
Collins. He noted that this was a one time opportunity, as we
were unlikely again to be publisher of a Nobel prize winner.
Mr. Hannon said that the projec:t seems like a good idea.
Another incentive for the donation of the royalties is that it
has a good possibility for being c:ounted by the authors as a tax
deduc:tion. He then asked if the translations will be published
in all of the Arab world or just in Egypt.
Dr. Pedersen replied that the intention would have to be to
publish in the whole Arab world sinc:e the Egyptian market is
probably not big enough to make the projec:t profitable. He added
that A.U.C. will be c:autious about what it c:hooses to publish in
Arabic:
Business model based on the saving of electrical energy through the commercialization of solar chargers
No full textLa tecnología ha impactado y seguirá impactando en la vida de las personas, consiguiendo que cada vez más, se sumen al grupo de dueños de dispositivos electrónicos, quienes tienen la necesidad de estar comunicados de alguna manera y es, para este segmento, que existen compañías que ofrecen soluciones electrónicas por medio de la venta de celulares, tablets y demás. Estos dispositivos necesitan de la electricidad para recargar su batería y, lamentablemente, esto constituye una limitante, ya que se requiere de una fuente de energía eléctrica para que puedan funcionar.
En la actualidad, uno de los problemas de mayor envergadura son los altos montos en la facturación por consumo de energía eléctrica. Además, Osinergmin informó, este año, del alza en la facturación por electricidad, lo cual afecta la economía de la población. A este punto le adicionamos la problemática que genera el calentamiento global, dado que -según el autor de diferentes libros y revistas sobre educación ambiental, José Larios Martón- alrededor del 80% de la electricidad del mundo es producida por las centrales termoeléctricas que convierten el calor en electricidad y el 17% por sistemas hidroeléctricos. En ambos casos se utiliza agua para mover turbinas y para refrigeración, respectivamente. Los cambios climáticos afectarían las temperaturas del agua, lo cual sumará costos significativos a las facturas de electricidad e incrementará el riesgo de la escasez de agua.
El cargador solar es una solución a estos problemas debido a que nos facilita la vida y aporta al ahorro de la facturación de energía eléctrica por medio del aprovechamiento de la luz natural del sol. La naturaleza nos brinda sus recursos para permitirnos ahorrar tiempo, dinero y estrés, los cuales, en este caso, son utilizados para transformarse en energía útil para el funcionamiento de los dispositivos electrónicos.Technology has impacted and will continue to impact how people live, increasing the number of owners of electronic devices, who need to be communicated in some way and it is, for this segment, that there are companies that offer electronic solutions through the sale of cell phones, tablets and others. These devices need electricity to recharge their battery and, unfortunately, this is a limitation since it requires a source of electrical power for them to work.
Currently, one of the biggest problems is the high amounts in billing for electricity consumption. In addition, Osinergmin reported, this year, the increase in electricity billing, which affects the economy of the population. At this point we add the problem generated by global warming, given that -according to the author of different books and magazines on environmental education, José Larios Martón- about 80% of the world's electricity is produced by the thermoelectric plants that convert the heat in electricity and a 17% by hydroelectric systems. In both cases, water is used to move turbines and for cooling, respectively. Climate changes will affect water temperatures, which will add significant costs to electricity bills and increase the risk of water shortages.
The solar charger is a solution to these problems because it facilitates our lives and contributes to the saving of electricity billing using natural sunlight. Nature gives us its resources to allow us to save time, money and stress, which, in this case, are used to transform into useful energy for the operation of electronic devices.Trabajo de investigació
