216 research outputs found
Distribution of blue-sensitive photoreceptors in amphibian retinas
AbstractPreviously, we reported that an opsin (Rc-MS) belonging to the SWS2 group opsins is expressed in bullfrog green rods [Hisatomi, O. et al., FEBS Lett., 1999, 447, 44–48]. An anti-Rc-MS antiserum recognized the cones of the Japanese common newt, Cynops pyrrhogaster, which has no green rods. We isolated a cDNA encoding an SWS2 group opsin (Cp-SWS2) from this newt and found that Cp-SWS2 is expressed in a small population of the cones. Our results suggest that SWS2 opsins can be expressed in either green rods or cones of caudata. It seems reasonable to suppose that green rods arose before amphibia were divided into caudata and anura
Methodology for Agricultural Flood Damage Assessment
This chapter describes a method for assessing flood damage to the agricultural sector, specifically focusing on flood damage to rice crops. The chapter also includes the case studies of flood damage assessment conducted in the Asian river basins, the Pampanga River basin of the Philippines, and the Lower Indus River basin of Pakistan. The assessment was performed by defining flood damage to rice crops as a function of flood depth, duration, and growth stage of rice plants and using depth-duration-damage function curves for each growth stage of rice plants. In the case studies, flood characteristics such as flood depth, duration, and distribution were computed using a rainfall-runoff-inundation (RRI) model. Flood damage to rice crops was assessed for the 2011 flood and 100-year flood events in the case of the Pampanga River basin and for the 2010 flood in the case of Lower Indus River basin. The calculated values of agricultural damage were compared with reported data for validation of methodology, and it was found that the calculated damage reasonably agreed with reported data. The rice-crop damage assessment method described in this chapter can also be applied in other areas for flood risk assessment
Magnetoelectric memory function with optical readout
The ultimate goal of multiferroic research is the development of
new-generation non-volatile memory devices, the so-called magnetoelectric (ME)
memories, where magnetic bits are controlled via electric fields without the
application of electrical currents subject to dissipation. This low-power
operation exploits the entanglement of the magnetization and the electric
polarization coexisting in multiferroic materials. Here we demonstrate the
optical readout of ME memory states in the antiferromagnetic (AFM) and
antiferroelectric (AFE) LiCoPO, based on the strong absorption difference
of THz radiation between its two types of ME domains. This unusual contrast is
attributed to the dynamic ME effect of the spin-wave excitations, as confirmed
by our microscopic model, which also captures the characteristics of the
observed static ME effect. Our proof-of-principle study, demonstrating the
control and the optical readout of ME domains in LiCoPO, lays down the
foundation for future ME memory devices based on
antiferroelectric-antiferromagnetic insulators.Comment: 6 pages, 4 figures + Supplementary (10 pages and 4 figures
Arthralgia and Osteolytic Lesions Associated with Traumatic Pancreatitis in a 10-Year-Old Girl
A case of traumatic pancreatitis with subsequent joint pain and osteolytic lesions is presented. A 10-year-old girl was admitted to our hospital with abdominal pain caused by blunt epigastric injury. She was diagnosed with traumatic pancreatitis, and multiple pancreatic pseudocysts subsequently developed. Two weeks after admission, she complained of joint pain, and MR revealed osteolytic lesions of both knee joints. On the 58th day, endoscopic transgastric pseudocyst drainage was performed. Joint pain and osteolytic lesions resolved rapidly, in parallel with the decrease in serum amylase level and pseudocyst size
Successive phase transitions and phase diagrams of the quasi-two-dimensional triangular antiferromagnet Rb4Mn(MoO4)3
Comprehensive experimental studies by magnetic, thermal and neutron
measurements have clarified that Rb4Mn(MoO4)3 is a model system of a quasi-2D
triangular Heisenberg antiferromagnet with an easy-axis anisotropy, exhibiting
successive transitions across an intermediate collinear phase. As a rare case
for geometrically frustrated magnetism, quantitative agreement between
experiment and theory is found for complete, anisotropic phase diagrams as well
as magnetic properties.Comment: 4 pages, 5 figure
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