Due to the Internet, we live in a world with easy access to all types of information. Even local newspapers that were formerly
inaccessible outside their locality are publishing stories online. As a result, you can catch up on localized news from all
over the world. This is a significant step forward, of course, since it means you can get news about, say, Brazil, straight
from the source, instead of from an Associated Press reporter who may have been in the country for only a few days. The downside
is that there’s an explosion of news sites—some good, some bad, and some mediocre. They are in such quantity that they can
be hard to sift through, so it’s difficult to extract the particular information you want from the mass of information you
can access.

At the time of this writing, the Web is less than 20 years old. While that may seem like a lifetime in software terms, in
business terms, the Web is still an infant, with countless new ventures being built around it.

There was overwhelming evidence documented in vitro in the early 1970s for lymphocyte-mediated cytotoxicity to autologous cancer cells. Cancer-bearing patients circulated small
compact lymphocytes in their blood that promptly killed their tumor cells in vitro. These lymphocytes were identified later as CD8⁺ immune T cells. Tumor cells were killed by cytoplasmic lysis with perforins and granzymes, or by nuclear clumping by Fas
ligand and related ligands. With the discovery of T cell growth factor (interleukin-2), the road for lymphocyte therapy of
human cancers appeared wide open. Then emerged the “large granular lymphocytes”. These cells occurred not only in patients
with cancer, but in healthy cancer-free individuals. The author of this article served as “negative (healthy) control” in
the cytotoxicity assays in the late 1960s and early 1970s. Some project site visitors of the National Cancer Institute could
not comprehend that “immune reactions could exist without pre-immunization” and referred to the phenomenon as an “in vitro artifact” (worse than that: they canceled grant support for its study). It was years later, that first in mice and then in
human patients the “large granular lymphocytes” were recognized as natural killer cells. Then emerged the “suppressor/regulatory
T cells” (TREG). This lymphocyte population is responsible for curtailing autoimmune reactions against “self ”. Tumor cells
masquerading as “self ” are protected by TREG against cytotoxicity executed by immune T cells, and even by NK cells. Adoptive
immune lymphocyte therapy of human cancer will be effectively resolved when technology develops for the neutralization of
the TREG population.

All companies deal with valuation from time to time. Capital budgeting, company and asset valuation, or value based management
rely on valuation.

Abstract  Photometry of the nucleus of the Seyfert 1 galaxy Ark 120 acquired in 1996–2005 with telescopes of the Crimean Astrophysical
Observatory and the Sternberg Astronomical Institute’s Crimean Laboratory is used to construct and analyze the object’s U BV RI variability. The U BV RI variations have different timescales, and the variability amplitude grows towards shorter wavelengths. Changes in the color
indices of the variable source appear to be due to variations in the opacity of gas at temperatures T > 15 000 K. The spectral energy distribution (SED) of the rapidly varying component is bluer than the SED of the slowly-varying
component. The rapid variations are due to instabilities in the inner part of the accretion disk where, according to current
ideas, the continuum is formed. Based on the peak of the cross-correlation function, the V RI variations lag the B variations by 1.4 to 5.6 days, with the lag increasing systematically from V to I. The lag calculated from the centroid of the cross-correlation function is from 2.8 days for V to 10.5 days for I. We demonstrate that the wavelength dependence of the lag is well approximated by the function τ ∝ λ^4/3, characteristic of optically thick accretion disks.

Abstract  This paper presents a hybrid model for embedded machine vision combining programmable hardware for the image processing tasks
and a digital hardware implementation of an artificial neural network for the pattern recognition and classification tasks.
A number of possible architectural implementations are compared. A prototype development system of the hybrid model has been
created, and hardware details and software tools are discussed. The applicability of the hybrid design is demonstrated with
the development of a vision application: real-time detection and recognition of road signs.

RNA silencing, including RNA interference, is a novel method of gene regulation and one of the potent host-defense mechanisms
against the viruses. In the course of evolution, the viruses have encoded proteins with the potential to suppress the host
RNA silencing mechanism as a counterdefense strategy. The virus-encoded RNA silencing suppressors (RSSs) can serve as important
biological tools to dissect the detailed RNA silencing pathways and also to evolve the antiviral strategies. Screening and
identification of the RSSs are indeed of utmost significance in the field of plant biotechnology. We describe two Green Fluorescent
Protein (GFP) reporter-based plant assay systems that rely on two different principles, namely reversal of silencing and enhancement
of rolling circle replication (RCR) of geminiviral replicon. These proof-of-concept examples and assay systems could be used
to screen various plant, animal, and insect viral ORFs for identification of the RSS activities.

Abstract  Existing satellite microwave algorithms for retrieving Sea Surface Temperature (SST) and Wind (SSW) are applicable primarily
for non-raining cloudy conditions. With the launch of the Earth Observing System (EOS) Aqua satellite in 2002, the Advanced
Microwave Scanning Radiometer (AMSR-E) onboard provides some unique measurements at lower frequencies which are sensitive
to ocean surface parameters under adverse weather conditions. In this study, a new algorithm is developed to derive SST and
SSW for hurricane predictions such as hurricane vortex analysis from the AMSR-E measurements at 6.925 and 10.65 GHz. In the
algorithm, the effects of precipitation emission and scattering on the measurements are properly taken into account. The algorithm
performances are evaluated with buoy measurements and aircraft dropsonde data. It is found that the root mean square (RMS)
errors for SST and SSW are about 1.8 K and 1.9 m s⁻¹, respectively, when the results are compared with the buoy data over open oceans under precipitating clouds (e.g., its liquid
water path is larger than 0.5 mm), while they are 1.1 K for SST and 2.0 m s⁻¹ for SSW, respectively, when the retrievals are validated against the dropsonde measurements over warm oceans. These results
indicate that our newly developed algorithm can provide some critical surface information for tropical cycle predictions.
Currently, this newly developed algorithm has been implemented into the hybrid variational scheme for the hurricane vortex
analysis to provide predictions of SST and SSW fields.

Abstract  Spatial heterogeneity is a very important issue in studying functions and processes of ecological systems at various scales.
Semivariogram analysis is an effective technique to summarize spatial data, and quantification of spatial heterogeneity. In
this paper, we propose some principles to use semivariograms to characterize and compare spatial heterogeneity of ecological
systems and use an example of old growth forests of Korean pine to demonstrate these principles and to discuss its characteristics
of spatial heterogeneity.

Abstract  Cardiac image registration using computed tomography (CT), magnetic resonance imaging (MRI), ultrasound, and fluoroscopy is
currently being investigated and clinically used for atrial fibrillation (AF) ablation. Cardiac image registration, in the
context of left atrium, is intermodal, with the acquired image and the real-time reference image residing in different image
spaces, and involves optimization, where one image space is transformed into the other. Geometry-based methods, which include
using fiducial points and/or surface-based techniques, are usually used for cardiac image registration. During fiducial point
registration, fiducial points are either external skin markers or manually determined by marking anatomical landmarks, using
mapping catheters. Usually, a minimum of three non collinear points are needed for optimal registration. Recently, a catheter
placed inside the coronary sinus has also been used as a fiducial marker for the purpose of registration. During surface registration,
the process involves characterizing surfaces in each of the images and deriving the best transformation between them. Unlike
rigid body registration, such as has been extensively used in imaging the brain, cardiac image registration is unique and
challenging. In addition to the errors inherent in intermodal registration, such as errors in pixel and voxel dimension and
errors due to fiducial point selection, there are errors specific to cardiac image registration, i.e., errors due to cardiac
motion during the cardiac cycle and due to respiration. This review addresses the basic principles of registration and the
inherent registration errors as they relate to cardiac imaging and registration.