Early in its mission, the Landsat-7 spacecraft was temporarily placed in a ‘‘tandem’’ orbit very close to that of the Landsat-5 spacecraft in order to facilitate the establishment of sensor calibration continuity between the Landsat-7 Enhanced Thematic Mapper Plus (ETM+) and Landsat-5 Thematic Mapper (TM) sensors. The key period for the tandem configuration was June 1–4, 1999, during which hund...

Chlorophyll-a (Chl-a) concentration is considered as a key indicator of the eutrophic status of inland water bodies. Various algorithms have been developed for estimating Chl-a in order to improve the accuracy of predictive models. The objective of this study is to assess the potential of hyperspectral multi-band indices to estimate the Chl-a concentration in Dianshan Lake, which is the largest...

Laguna Azul is an oligotrophic lake situated at 4,560 m above sea level and subject to a high level of solar radiation. Bacterioplankton community composition (BCC) was analysed by denaturing gradient gel electrophoresis and the impact of solar ultraviolet radiation was assessed by measuring cyclobutane pyrimidine dimers (CPD). Furthermore, pure cultures of Acinetobacter johnsonii A2 and Rhodoc...

We report on vacuum ultraviolet (VUV) excited photoluminescence (PL) spectra emitted from a chemical vapor deposited MoS2 few-layered film. The excitation spectrum was recorded by monitoring intensities of PL spectra at ~1.9 eV. A strong wide excitation band peaking at 7 eV was found in the excitation. The PL excitation band is most intensive at liquid helium temperature and completely quenched...

Previous research has suggested that a mid-band of spatial frequencies is critical to face recognition in adults, but few studies have explored the development of this bias in children. We present a paradigm adapted from the adult literature to test spatial frequency biases throughout development. Faces were presented on a screen with particular spatial frequencies blocked out by noise masks. A...

Peculiar band structures were found on murine and human leprosy bacilli in 1958 by Okada (1) _ Consequently Okada postulated that there might be some process of demarcation in the bacillary body which results in replication in a manner different from ordinary cell division. Sato has also presented pictures of similar structures (2) which he termed "demarcation lines" in the leprosy bacillus. In...

We describe for the first time the fast dynamics of functional and effective (causal) connectivity during word reading. Independent component analysis of high-density EEG recorded during a word reading task recovered multiple sources of electrical brain activity previously identified by fMRI and PET. Results confirmed the ventral occipito-temporal cortex (vOT) as a central hub for word reading,...

fragments, secure ligaments or tendon to bone, and improve stability in weakened constructs.1–5 The spinous ligaments, ligamentum flavum, facet capsular ligament, and posterior longitudinal ligaments collectively form the natural posterior spinal tension band. The integrity of the posterior spinal ligamentous structures is critical, as they function to limit translation (anterior and posterior)...

This paper presents reconfigurable frequency and polarization FSS-based with photoconductive switches in a single dual-band operation for antenna applications at the terahertz band. The band FSS unit-cell element exhibits reconfigurability between 0.62 0.7 THz. It also converts LP waves into CP over ranging from 0.59 to 0.8 THz (30% 3-dB BW). (0.42 1.03 THz) when are turned ON (0.51 0.865 OFF. ...

I propose that synchronization affects communication between neuronal groups. Gamma-band (30-90 Hz) synchronization modulates excitation rapidly enough that it escapes the following inhibition and activates postsynaptic neurons effectively. Synchronization also ensures that a presynaptic activation pattern arrives at postsynaptic neurons in a temporally coordinated manner. At a postsynaptic neu...