187 research outputs found
Π¦ΠΈΡΡΠΎΠ²ΠΎΠΉ ΡΠ»Π΅ΠΊΡΡΠΎΠΏΡΠΈΠ²ΠΎΠ΄ Π΄Π²ΠΈΠ³Π°ΡΠ΅Π»Ρ ΠΏΠΎΡΡΠΎΡΠ½Π½ΠΎΠ³ΠΎ ΡΠΎΠΊΠ°
ΠΡΠΎΠ°Π½Π°Π»ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π° ΡΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½Π°Ρ ΡΠ»Π΅ΠΌΠ΅Π½ΡΠ½Π°Ρ Π±Π°Π·Π° ΡΠΈΠ»ΠΎΠ²ΠΎΠΉ ΡΠ»Π΅ΠΊΡΡΠΎΠ½ΠΈΠΊΠΈ. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Ρ ΡΡ
Π΅ΠΌΠΎΡΠ΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ΅ΡΠ΅Π½ΠΈΡ ΠΏΠΎΡΡΡΠΎΠ΅Π½ΠΈΡ ΡΠΈΡΡΠΎΠ²ΠΎΠ³ΠΎ ΡΠ»Π΅ΠΊΡΡΠΎΠΏΡΠΈΠ²ΠΎΠ΄Π° Π΄Π²ΠΈΠ³Π°ΡΠ΅Π»Ρ ΠΏΠΎΡΡΠΎΡΠ½Π½ΠΎΠ³ΠΎ ΡΠΎΠΊΠ°. ΠΠ±Π΅ΡΠΏΠ΅ΡΠ΅Π½Π° Π³ΠΈΠ±ΠΊΠΎΡΡΡ ΡΠΈΡΡΠ΅ΠΌΡ Π΅Π΅ ΡΠ°Π·Π±ΠΈΠ΅Π½ΠΈΠ΅ΠΌ Π½Π° ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠ²Π½ΠΎ Π·Π°Π²Π΅ΡΡΠ΅Π½Π½ΡΠ΅ ΠΌΠΎΠ΄ΡΠ»ΠΈ. ΠΡΠΎΠΈΠ·Π²Π΅Π΄Π΅Π½Π° ΠΈΠ½ΡΠ΅Π³ΡΠ°ΡΠΈΡ Ρ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠΌΠΈ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΡΠΌΠΈ ΠΏΠ°ΠΊΠ΅ΡΠ°ΠΌΠΈ
EduBal: An open balancing robot platform for teaching control and system theory
In this work we present EduBal, an educational open-source hardware and
software platform for a balancing robot. The robot is designed to be low-cost,
safe and easy to use by students for control education. Along with the robot we
present example tasks from system identification as well as SISO and MIMO
control. Using Simulink, students can quickly implement their control
algorithms on the robot. Individual control parameters can be tuned online
while analyzing the resulting behavior in live signal plots. At RWTH Aachen
University and ETH Zurich 28 units have so far been built and used in control
classes. In first laboratory experiences students show high intrinsic
motivation and creativity to apply the studied concepts of control theory to
the real system.Comment: Accepted for publication at the 21st IFAC World Congress 202
ΠΠΎΠ³ΡΠΊΠ°
ΠΠΌΡΡΡ Π²ΠΈΠ΄Π°Π½Π½Ρ Π²ΡΠ΄ΠΏΠΎΠ²ΡΠ΄Π°Ρ ΠΎΡΠ²ΡΡΠ½ΡΠΎ-ΠΏΡΠΎΡΠ΅ΡΡΠΉΠ½ΡΠΉ ΠΏΡΠΎΠ³ΡΠ°ΠΌΡ Π±Π°ΠΊΠ°Π»Π°Π²ΡΡΠ²
Π½Π°ΠΏΡΡΠΌΡΠ² ΠΏΡΠ΄Π³ΠΎΡΠΎΠ²ΠΊΠΈ Β«ΠΡΠ°Π²ΠΎΒ», Β«Π€ΡΠ»ΠΎΡΠΎΡΡΡΒ» ΡΠ° ΡΠ½ΡΠΈΡ
Π½Π°ΠΏΡΡΠΌΡΠ².
Π ΠΎΠ·Π³Π»ΡΠ½ΡΡΠΎ ΠΌΠ°ΡΠ΅ΡΡΠ°Π» Π΄ΠΈΡΡΠΈΠΏΠ»ΡΠ½ΠΈ Β«ΠΠΎΠ³ΡΠΊΠ°Β», Π·ΠΎΠΊΡΠ΅ΠΌΠ° ΡΠ°ΠΊΡ ΡΠ΅ΠΌΠΈ: Β«ΠΡΠ½ΠΎΠ²Π½Ρ
Π·Π°ΠΊΠΎΠ½ΠΈ ΡΠΎΡΠΌΠ°Π»ΡΠ½ΠΎΡ Π»ΠΎΠ³ΡΠΊΠΈΒ», Β«ΠΠΎΠ½ΡΡΡΡΒ», Β«Π‘ΡΠ΄ΠΆΠ΅Π½Π½ΡΒ», Β«Π£ΠΌΠΎΠ²ΠΈΠ²ΠΎΠ΄ΠΈΒ»,
Β«ΠΠΎΠ²Π΅Π΄Π΅Π½Π½Ρ Ρ ΡΠΏΡΠΎΡΡΡΠ²Π°Π½Π½ΡΒ», Β«ΠΡΠΏΠΎΡΠ΅Π·Π° Ρ ΡΠ΅ΠΎΡΡΡΒ».
Π‘ΡΠΎΡΠΌΡΠ»ΡΠΎΠ²Π°Π½ΠΎ Π½Π°Π²ΡΠ°Π»ΡΠ½Ρ ΡΡΠ»Ρ Π·ΠΌΡΡΡΠΎΠ²ΠΈΡ
ΠΌΠΎΠ΄ΡΠ»ΡΠ² Π΄ΠΈΡΡΠΈΠΏΠ»ΡΠ½ΠΈ, ΡΠΎ
ΠΎΠΊΡΠ΅ΡΠ»ΡΡΡΡ ΠΊΠΎΠΌΠΏΠ΅ΡΠ΅Π½ΡΠ½ΠΎΡΡΡ, Π½Π°Π²ΠΈΡΠΊΠΈ ΠΉ ΡΠΌΡΠ½Π½Ρ Π±Π°ΠΊΠ°Π»Π°Π²ΡΠ° Π³ΡΠΌΠ°Π½ΡΡΠ°ΡΠ½ΠΈΡ
ΡΠ°
ΡΠ½ΡΠΈΡ
ΡΠΏΠ΅ΡΡΠ°Π»ΡΠ½ΠΎΡΡΠ΅ΠΉ
ΠΠΊΡΠΊΡΡΡΠΈΠΎΠ½Π½Π°Ρ Π΄Π΅ΡΡΠ΅Π»ΡΠ½ΠΎΡΡΡ ΠΊΠ°ΠΊ Π°ΠΊΡΡΠ°Π»ΡΠ½ΡΠΉ ΡΠΏΠΎΡΠΎΠ± ΡΠ°Π·Π²ΠΈΡΠΈΡ ΡΡΡΠΈΠ·ΠΌΠ° Π² Π³. ΠΠΎΠ²ΠΎΡΠΈΠ±ΠΈΡΡΠΊΠ΅
ΠΠΎΡΠ»Π΅Π΄Π½Π΅Π΅ Π΄Π΅ΡΡΡΠΈΠ»Π΅ΡΠΈΠ΅ Π² Π ΠΎΡΡΠΈΠΉΡΠΊΠΎΠΉ Π€Π΅Π΄Π΅ΡΠ°ΡΠΈΠΈ Π²ΠΎΠ·ΡΠΎΡ ΠΈΠ½ΡΠ΅ΡΠ΅Ρ ΠΏΡΠ°Π²ΠΈΡΠ΅Π»ΡΡΡΠ²Π° Π² ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½ΠΎΠΌ ΡΠ°Π·Π²ΠΈΡΠΈΠΈ ΡΡΡΠΈΠ·ΠΌΠ°: ΠΊΠ°ΠΊ Π²ΠΎ Π²ΡΠ΅ΠΌ Π³ΠΎΡΡΠ΄Π°ΡΡΡΠ²Π΅, ΡΠ°ΠΊ ΠΈ Π² ΠΎΡΠ΄Π΅Π»ΡΠ½ΡΡ
ΡΠ΅Π³ΠΈΠΎΠ½Π°Ρ
. ΠΠ»Ρ ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎΠ³ΠΎ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΠΌΠ°ΡΡΠΎΠ²ΠΎΠ³ΠΎ Π²ΡΠ΅Π·Π΄Π½ΠΎΠ³ΠΎ ΠΈ Π²Π½ΡΡΡΠ΅Π½Π½Π΅Π³ΠΎ ΡΡΡΠΈΠ·ΠΌΠ° Π² ΡΠ΅Π³ΠΈΠΎΠ½Π°Ρ
Π ΠΎΡΡΠΈΠΈ, Π² ΡΠ°ΡΡΠ½ΠΎΡΡΠΈ Π² Π³ΠΎΡΠΎΠ΄Π΅ ΠΠΎΠ²ΠΎΡΠΈΠ±ΠΈΡΡΠΊΠ΅, Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎ ΡΠ΄Π΅Π»ΠΈΡΡ ΠΎΡΠ΄Π΅Π»ΡΠ½ΠΎΠ΅ Π²Π½ΠΈΠΌΠ°Π½ΠΈΠ΅ ΡΠΊΡΠΊΡΡΡΠΈΠΎΠ½Π½ΠΎΠΌΡ ΠΎΠ±ΡΠ»ΡΠΆΠΈΠ²Π°Π½ΠΈΡ. ΠΠΌΠ΅Π½Π½ΠΎ ΠΎΠ±Π·ΠΎΡΠ½ΡΠ΅ ΡΠΊΡΠΊΡΡΡΠΈΠΈ ΡΠΎΠ·Π΄Π°ΡΡ ΠΏΠ΅ΡΠ²ΠΎΠ΅ Π²ΠΏΠ΅ΡΠ°ΡΠ»Π΅Π½ΠΈΠ΅ ΠΎ Π³ΠΎΡΠΎΠ΄Π΅ Ρ Π΅Π³ΠΎ Π³ΠΎΡΡΠ΅ΠΉ. ΠΡ ΡΠΊΡΠΊΡΡΡΠΈΠΎΠ½Π½ΠΎΠΉ Π΄Π΅ΡΡΠ΅Π»ΡΠ½ΠΎΡΡΠΈ Π²ΠΎ ΠΌΠ½ΠΎΠ³ΠΎΠΌ Π·Π°Π²ΠΈΡΠΈΡ ΠΊΠ°ΠΊ Π²ΠΎΡΠΏΡΠΈΠΌΡΡ ΡΡΡΠΈΡΡΡ ΠΏΠΎΡΠ΅ΡΠ°Π΅ΠΌΡΠ΅ ΠΌΠ΅ΡΡΠ°, Π·Π°Ρ
ΠΎΡΡΡ Π»ΠΈ ΠΏΠΎΠ±ΡΠ²Π°ΡΡ Π² Π½ΠΈΡ
Π΅ΡΠ΅ ΡΠ°Π·. ΠΠΎΡΡΠΎΠΌΡ ΡΠ΅Π»ΡΡ ΠΌΠΎΠ΅ΠΉ ΡΠ°Π±ΠΎΡΡ ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠ° ΠΏΠ°ΠΊΠ΅ΡΠ° ΡΠΊΡΠΊΡΡΡΠΈΠΎΠ½Π½ΡΡ
ΠΌΠ°ΡΡΡΡΡΠΎΠ² ΠΏΠΎ ΠΏΡΠΈΠ½ΡΠΈΠΏΡ Hop-on Hop-off Π΄Π»Ρ ΡΡΡΠΈΡΡΠΎΠ² ΠΏΠΎ Π³ΠΎΡΠΎΠ΄Ρ ΠΠΎΠ²ΠΎΡΠΈΠ±ΠΈΡΡΠΊΡ.The last decade in the Russian Federation has increased the interest of the government in the integrated development of tourism: both in the whole state and in certain regions. For the qualitative development of mass inbound and domestic tourism in the regions of Russia, in particular in the city of Novosibirsk, it is necessary to pay special attention to excursion services. It is the sightseeing tours that create the first impression of the city at its guests. From the excursion activity in many respects depends on how the tourists will perceive the places visited, whether they will want to visit them again. Therefore the purpose of my work is elaboration of a package of sightseeing routes on the principle of Hop-on Hop-off for tourists around the city of Novosibirsk
Π Π°Π·ΡΠ°Π±ΠΎΡΠΊΠ° ΡΠ΅Ρ Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΡΠ±ΠΎΡΠΊΠΈ ΠΈ ΡΠ²Π°ΡΠΊΠΈ ΡΡΡΠΊΠΎΠ²ΠΎΠ³ΠΎ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ ΡΡΡΠ±Π°-Π»ΠΈΡΡ ΠΈΠ· Π½ΠΈΠ·ΠΊΠΎΠ»Π΅Π³ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΉ ΡΡΠ°Π»ΠΈ
Π‘ΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠ΅ Π²ΠΈΠ΄Π° ΡΡΡΠ±Π°-Π»ΠΈΡΡ ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΎΠ΄Π½ΠΈΠΌ ΠΈΠ· ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½Π΅Π½Π½ΡΡ
ΡΠΈΠΏΠΎΠ² ΡΠ²Π°ΡΠ½ΡΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ. Π ΠΏΡΠΈΠΌΠ΅ΡΡ, ΠΎΠ½ΠΎ ΡΠ°ΡΡΠΎ ΠΏΡΠΈΠΌΠ΅Π½ΡΠ΅ΡΡΡ ΠΏΡΠΈ ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½ΠΈΠΈ ΠΌΠ΅ΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠΎΠ»ΠΎΠ½Π½ ΠΈ Π½Π΅ΡΡΡΠΈΡ
ΠΎΠΏΠΎΡ ΠΊΠ°ΡΠΊΠ°ΡΠΎΠ² Π·Π΄Π°Π½ΠΈΠΉ.
ΠΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ Π½ΠΈΠ·ΠΊΠΎΠ»Π΅Π³ΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΡΡΠ°Π»Π΅ΠΉ Π²Π·Π°ΠΌΠ΅Π½ ΡΠ³Π»Π΅ΡΠΎΠ΄ΠΈΡΡΡΡ
ΠΏΡΠΈ ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½ΠΈΠΈ Π΄Π°Π½Π½ΡΡ
ΠΌΠ΅ΡΠ°Π»Π»ΠΎΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΉ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π΅Ρ ΡΡΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎΠ΅ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΠ΅ ΠΌΠ΅ΡΠ°Π»Π»ΠΎΠ΅ΠΌΠΊΠΎΡΡΠΈ, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΠΏΠΎΠ²ΡΡΠΈΡΡ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠ΅ ΠΏΡΠΎΡΠ½ΠΎΡΡΠ½ΡΠ΅ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ.
Π¦Π΅Π»Ρ ΡΠ°Π±ΠΎΡΡ β ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠ° ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΡΠ±ΠΎΡΠΊΠΈ ΠΈ ΡΠ²Π°ΡΠΊΠΈ ΡΡΡΠΊΠΎΠ²ΠΎΠ³ΠΎ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ ΡΡΡΠ±Π°-Π»ΠΈΡΡ ΠΈΠ· ΡΡΠ°Π»ΠΈ 09Π2Π‘.
Π ΠΏΡΠΎΡΠ΅ΡΡΠ΅ ΡΠ°Π±ΠΎΡΡ Π±ΡΠ» Π²ΡΠ±ΡΠ°Π½ ΡΠΏΠΎΡΠΎΠ± ΡΠ²Π°ΡΠΊΠΈ, ΡΠ²Π°ΡΠΎΡΠ½ΠΎΠ΅ ΠΎΠ±ΠΎΡΡΠ΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΈ ΡΠ²Π°ΡΠΎΡΠ½ΡΠ΅ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Ρ. ΠΡΠΎΠΈΠ·Π²Π΅Π΄Π΅Π½Ρ ΡΠ°ΡΡΠ΅ΡΡ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΡΠ΅ΠΆΠΈΠΌΠ° ΡΠ²Π°ΡΠΊΠΈ, ΡΠ°ΡΡΡΠΈΡΠ°Π½Ρ ΠΎΠΏΡΠΈΠΌΠ°Π»ΡΠ½ΡΠ΅ Π³Π΅ΠΎΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΡΠ²Π°, Π° ΡΠ°ΠΊΠΆΠ΅ Π΅Π³ΠΎ ΠΎΠΆΠΈΠ΄Π°Π΅ΠΌΡΠΉ Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΠΉ ΡΠΎΡΡΠ°Π².Pipe-to-sheet joint is one of common welded joints. For example it is used to make of metal columns and load-bearing supports of building frames.
The use of low alloy steels instead of carbon steels in the manufacture of metal structures reduces metal consumption and allows to increase the strength characteristics of joint.
Purpose of the work is development of fitting up and welding technology of a butt pipe-to-sheet joint steel 09G2S.
In the progress, a welding method, welding equipment and welding materials were selected. The parameters of the welding mode, geometric characteristics and chemical composition are calculated
Dynamic changes of left ventricular performance and left atrial volume induced by the mueller maneuver in healthy young adults and implications for obstructive sleep apnea, atrial fibrillation, and heart failure.
Using the Mueller maneuver (MM) to simulate obstructive sleep apnea (OSA), our aim was to investigate acute changes in left-sided cardiac morphologic characteristics and function which might develop with apneas occurring during sleep. Strong evidence supports a relation between OSA and both atrial fibrillation and heart failure. However, acute effects of airway obstruction on cardiac structure and function have not been well defined. In addition, it is unclear how OSA might contribute to the development of atrial fibrillation and heart failure. Echocardiography was used in healthy young adults to measure various parameters of cardiac structure and function. Subjects were studied at baseline, during, and immediately after performance of the MM and after a 10-minute recovery. Continuous heart rate, blood pressure, and pulse oximetry measurements were made. During the MM, left atrial (LA) volume index markedly decreased. Left ventricular (LV) end-systolic dimension increased in association with a decrease in LV ejection fraction. On release of the maneuver, there was a compensatory increase in blood flow to the left side of the heart, with stroke volume, ejection fraction, and cardiac output exceeding baseline. After 10 minutes of recovery, all parameters returned to baseline. In conclusion, sudden imposition of severe negative intrathoracic pressure led to an abrupt decrease in LA volume and a decrease in LV systolic performance. These changes reflected an increase in LV afterload. Repeated swings in afterload burden and chamber volumes may have implications for the future development of atrial fibrillation and heart failure
Human Neurospheres as Three-Dimensional Cellular Systems for Developmental Neurotoxicity Testing
Bac k g r o u n d: Developmental neurotoxicity (DNT) of environmental chemicals is a serious threat to human health. Current DNT testing guidelines propose investigations in rodents, which require large numbers of animals. With regard to the β3 Rs β (reduction, replacement, and refinement) of animal testing and the European regulation of chemicals [Registration, Evaluation, and Authorisation of Chemicals (REACH)], alternative testing strategies are needed in order to refine and reduce animal experiments and allow faster and less expensive screening. Objectives: The goal of this study was to establish a three-dimensional test system for DNT screening based on human fetal brain cells. Met h o d s: We established assays suitable for detecting disturbances in basic processes of brain development by employing human neural progenitor cells (hNPCs), which grow as neurospheres. Furthermore, we assessed effects of mercury and oxidative stress on these cells. Re s u l t s: We found that human neurospheres imitate proliferation, differentiation, and migration in vitro. Exposure to the proapoptotic agent staurosporine further suggests that human neurospheres possess functioning apoptosis machinery. The developmental neurotoxicants methylmercury chloride and mercury chloride decreased migration distance and number of neuronal-like cells in differentiated hNPCs. Furthermore, hNPCs undergo caspase-independent apoptosis when exposed toward high amounts of oxidative stress. Co n c l u s i o n s: Human neurospheres are likely to imitate basic processes of brain development, and these processes can be modulated by developmental neurotoxicants. Thus, this three-dimensional cell system is a promising approach for DNT testing. Key w o r d s: apoptosis, differentiation, DNT, human neurospheres, mercury, migration, proliferation. Environ Health Perspect 117:1131β1138 (2009). doi:10.1289/ehp.0800207 available vi
Balancing intestinal and systemic inflammation through cell type-specific expression of the aryl hydrocarbon receptor repressor
As a sensor of polyaromatic chemicals the aryl hydrocarbon receptor (AhR)
exerts an important role in immune regulation besides its requirement for
xenobiotic metabolism. Transcriptional activation of AhR target genes is
counterregulated by the AhR repressor (AhRR) but the exact function of the
AhRR in vivo is currently unknown. We here show that the AhRR is predominantly
expressed in immune cells of the skin and intestine, different from other AhR
target genes. Whereas AhRR antagonizes the anti-inflammatory function of the
AhR in the context of systemic endotoxin shock, AhR and AhRR act in concert to
dampen intestinal inflammation. Specifically, AhRR contributes to the
maintenance of colonic intraepithelial lymphocytes and prevents excessive IL-
1Ξ² production and Th17/Tc17 differentiation. In contrast, the AhRR enhances
IFN-Ξ³-production by effector T cells in the inflamed gut. Our findings
highlight the physiologic importance of cell-type specific balancing of
AhR/AhRR expression in response to microbial, nutritional and other
environmental stimuli
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