Results 71 to 80 of about 1,472,674 (296)

Controlling the sign of chromatic dispersion in diffractive optics [PDF]

open access: yes, 2017
Diffraction gratings disperse light in a rainbow of colors with the opposite order than refractive prisms, a phenomenon known as negative dispersion [1, 2].
E. Arbabi   +4 more
semanticscholar   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

La inmoralidad del "homo oeconomicus" [PDF]

open access: yes, 2001
En este trabajo me interesa reflexionar sobre la relación entre 'lo económico' y 'la economía' como disciplina que se "autoproclama científica." Podríamos definir a lo económico como constituido por la dispersión de la economía en el espacio cultural ...
Chiantore, Marcelo
core  

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

open access: yesFEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc   +8 more
wiley   +1 more source

Conductividad hidráulica en un suelo aluvial en respuesta al porcentaje de sodio intercambiable Saturated hydraulic conductivity of an alluvial soil with different exchangeable sodium percentages

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2003
El efecto del porcentaje de sodio intercambiable (PSI) sobre la conductividad hidráulica de un suelo saturado, fue estudiado en condiciones de laboratorio a través de la determinación de las relaciones entre la conductividad hidráulica medida en un suelo
Francisco L. Barreto Filho   +2 more
doaj   +1 more source

Ocean convergence and the dispersion of flotsam

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2018
Significance Ocean currents move material released on the ocean surface away from the release point and, over time, spread it over an increasingly large area.
E. D’Asaro   +18 more
semanticscholar   +1 more source

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

open access: yesFEBS Open Bio, EarlyView.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada   +5 more
wiley   +1 more source

Granivoría de la Torcaza Común (Zenaida auriculata) y su rol en la dispersión de semillas en bosques semiáridos del centro de Argentina [PDF]

open access: yes, 2017
La Torcaza Común (Zenaida auriculata) es una de las aves granívoras más abundantes de la región Neotropical, y ha sido declarada plaga en varias regiones del sur de Sudamérica.
Costan, Andrea Silvina   +1 more
core  

Pharmaceutical Dispersion Techniques for Dissolution and Bioavailability Enhancement of Poorly Water-Soluble Drugs

open access: yesPharmaceutics, 2018
Over the past decades, a large number of drugs as well as drug candidates with poor dissolution characteristics have been witnessed, which invokes great interest in enabling formulation of these active ingredients.
Xingwang Zhang   +3 more
semanticscholar   +1 more source

Accelerated Progression of Gait Impairment in Parkinson's Disease and REM Sleep Without Atonia

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective People with Parkinson's disease (PD) and rapid eye movement (REM) sleep without atonia (RSWA) often have more severe gait disturbances compared to PD without RSWA. The association between the presence and expression of RSWA and the rate of progression of gait impairment in PD is unknown.
Sommer L. Amundsen‐Huffmaster   +11 more
wiley   +1 more source

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