100 research outputs found
Data Processing Approaches for the Measurements of Steam Pipe Networks in Iron and Steel Enterprises
Different responsiveness to a high-fat/cholesterol diet in two inbred mice and underlying genetic factors: a whole genome microarray analysis
<p>Abstract</p> <p>Background</p> <p>To investigate different responses to a high-fat/cholesterol diet and uncover their underlying genetic factors between C57BL/6J (B6) and DBA/2J (D2) inbred mice.</p> <p>Methods</p> <p>B6 and D2 mice were fed a high-fat/cholesterol diet for a series of time-points. Serum and bile lipid profiles, bile acid yields, hepatic apoptosis, gallstones and atherosclerosis formation were measured. Furthermore, a whole genome microarray was performed to screen hepatic genes expression profile. Quantitative real-time PCR, western blot and TUNEL assay were conducted to validate microarray data.</p> <p>Results</p> <p>After fed the high-fat/cholesterol diet, serum and bile total cholesterol, serum cholesterol esters, HDL cholesterol and Non-HDL cholesterol levels were altered in B6 but not significantly changed in D2; meanwhile, biliary bile acid was decreased in B6 but increased in D2. At the same time, hepatic apoptosis, gallstones and atherosclerotic lesions occurred in B6 but not in D2. The hepatic microarray analysis revealed distinctly different genes expression patterns between B6 and D2 mice. Their functional pathway groups included lipid metabolism, oxidative stress, immune/inflammation response and apoptosis. Quantitative real time PCR, TUNEL assay and western-blot results were consistent with microarray analysis.</p> <p>Conclusion</p> <p>Different genes expression patterns between B6 and D2 mice might provide a genetic basis for their distinctive responses to a high-fat/cholesterol diet, and give us an opportunity to identify novel pharmaceutical targets in related diseases in the future.</p
On Steam Pipe Network Modeling and Flow Rate Calculation
AbstractThe paper demonstrates the method to set up the pipe network hydraulic-thermal synthetic mode by applying hydraulic and thermal models of single pipe, and proposes the algorithm based on searching for the problem that iterative calculation sometimes cannot derive convergent reasonable result as well. Compared the calculated values with the measurements, it shows the validation of the model and effectiveness of the algorithm
System Information Decomposition
In order to characterize complex higher-order interactions among variables in
a system, we introduce a new framework for decomposing the information entropy
of variables in a system, termed System Information Decomposition (SID).
Diverging from Partial Information Decomposition (PID) correlation methods,
which quantify the interaction between a single target variable and a
collection of source variables, SID extends those approaches by equally
examining the interactions among all system variables. Specifically, we
establish the robustness of the SID framework by proving all the information
atoms are symmetric, which detaches the unique, redundant, and synergistic
information from the specific target variable, empowering them to describe the
relationship among variables. Additionally, we analyze the relationship between
SID and existing information measures and propose several properties that SID
quantitative methods should follow. Furthermore, by employing an illustrative
example, we demonstrate that SID uncovers a higher-order interaction
relationships among variables that cannot be captured by current measures of
probability and information and provide two approximate calculation methods
verified by this case. This advance in higher-order measures enables SID to
explain why Holism posits that some systems cannot be decomposed without loss
of characteristics under existing measures, and offers a potential quantitative
framework for higher-order relationships across a broad spectrum of
disciplines
Measurement of the proton structure parameters in the forward-backward charge asymmetry
The forward-backward asymmetry () in the Drell-Yan process is sensitive to the proton structure
information. Such information has been factorized into well-defined proton
structure parameters which can be regarded as experimental observables. In this
paper, we extract the structure parameters from the distributions
reported by the CMS collaboration in collisions at TeV, and
by the D0 collaboration in collisions at TeV. It is
the first time that the unique parton information in the spectrum can
be decoupled from the electroweak calculation and measured as standalone
observables, which can be used as new data constraints in the global quantum
chromodynamics analysis of the parton distribution functions (PDFs). Although
the parton information in the and collisions are different, and
the precisions of the measured structure parameters are statistically limited,
the results from both the hadron colliders indicate that the down quark
contribution might be higher than the theoretical predictions with the current
PDFs at the relevant momentum fraction range
Search for dark matter signals with Fermi-LAT observation of globular clusters NGC 6388 and M 15
The globular clusters are probably good targets for dark matter (DM) searches
in -rays due to the possible adiabatic contraction of DM by baryons. In
this work we analyse the three-year data collected by {\it Fermi} Large Area
Telescope of globular clusters NGC 6388 and M 15 to search for possible DM
signals. For NGC 6388 the detection of -ray emission was reported by
{\it Fermi} collaboration, which is consistent with the emission of a
population of millisecond pulsars. The spectral shape of NGC 6388 is also shown
to be consistent with a DM contribution if assuming the annihilation final
state is . No significant -ray emission from M 15 is
observed. We give the upper limits of DM contribution to -ray emission
in both NGC 6388 and M 15, for annihilation final states , ,
, and monochromatic line. The constraints are
stronger than that derived from observation of dwarf galaxies by {\it Fermi}.Comment: 17 pages, 6 figures, accepted by JCA
Behavioral and Metabolic Phenotype Indicate Personality in Zebrafish (Danio rerio)
Consistency of individual differences of animal behavior and personality in reactions to various environmental stresses among their life stages could reflect basic divergences in coping style which may affect survival, social rank, and reproductive success in the wild. However, the physiological mechanisms determining personality remain poorly understood. In order to study whether behavior, metabolism and physiological stress responses relate to the personality, we employed post-stress recovery assays to separate zebrafish into two behavioral types (proactive and reactive). The results demonstrated consistent difference among personality, behavior and metabolism in which proactive individuals were more aggressive, had higher standard metabolic rates and showed lower shuttled frequencies between dark and light compartments than the reactive ones. The behavioral variations were also linked to divergent acute salinity stress responses: proactive individuals adopted a swift locomotion behavior in response to acute salinity challenge while reactive individuals remain unchanged. Our results provide useful insight into how personality acts on correlated traits and the importance of a holistic approach to understanding the mechanisms driving persistent inter-individual differences
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