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decoding the nexus:branched-chain amino acids and their connection with sleep,circadian rhythms,and cardiometabolic health

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Neural Regeneration Research 2025年第5期20卷 1350-1363页

作者： Hui Li Laurent Seugnet department of Neurology Xijing HospitalXi’anShaanxi ProvinceChina centre de Recherche en Neurosciences de Lyon Integrated Physiology of the Brain Arousal Systems(WAKING)UniversitéClaude Bernard Lyon 1INSERM U1028CNRS UMR 5292BronFrance

The sleep-wake cycle stands as an integrative process essential for sustaining optimal brain function and,either directly or indirectly,overall body health,encompassing metabolic and cardiovascular *** the heightened metabolic activity of the brain,there exists a considerable demand for nutrients in comparison to other *** these,the branched-chain amino acids,comprising leucine,isoleucine,and valine,display distinctive significance,from their contribution to protein structure to their involvement in overall metabolism,especially in cerebral *** the first amino acids that are released into circulation post-food intake,branched-chain amino acids assume a pivotal role in the regulation of protein synthesis,modulating insulin secretion and the amino acid sensing pathway of target of ***-chain amino acids are key players in influencing the brain's uptake of monoamine precursors,competing for a shared *** their involvement in protein synthesis,these amino acids contribute to the metabolic cycles ofγ-aminobutyric acid and glutamate,as well as energy ***,they impact GABAergic neurons and the excitation/inhibition *** rhythmicity of branchedchain amino acids in plasma concentrations,observed over a 24-hour cycle and conserved in rodent models,is under circadian clock *** mechanisms underlying those rhythms and the physiological consequences of their disruption are not fully *** sleep,obesity,diabetes,and cardiovascular diseases can elevate branched-chain amino acid concentrations or modify their oscillatory *** mechanisms driving these effects are currently the focal point of ongoing research efforts,since normalizing branched-chain amino acid levels has the ability to alleviate the severity of these *** this context,the drosophila model,though underutilized,holds promise in shedding new light on these *** findings indicate its po

关键词： branched-chain amino acids cardiovascular health circadian clock drosophila insulin metabolism sleep γ-aminobutyric acid

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Wave packet dynamics of nonlinear Gazeau–Klauder coherent states of a position-dependent mass system in a Coulomb-like potential

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Chinese Physics B 2021年第6期30卷 154-163页

作者： Faustin Blaise Migueu Mercel Vubangsi Martin Tchoffo Lukong Cornelius Fai Unitéde Recherche de Matière Condensée d'Électronique et de Traitement du SignalDépartement de PhysiqueFacultédes SciencesUniversitéde DschangB.P:67DschangCameroon Computational Material Science Laboratory Higher Technical Teachers'Training College BambiliUniversity of BamendaPO Box 39BamendaCameroon centre d'Études et de recherches en agronomie et en biodiversité Universitéde DschangDschangCameroon

Ad = 1 position-dependent mass approach to constructing nonlinear quantum states for a modified Coulomb potential is used to generate Gazeau–Klauder coherent states. It appears that their energy eigenvalues are scaled down by the quantum number and the nonlinearity coefficient. We study the basic properties of these states, which are found to be undefined on the whole complex plane, and some details of their revival structure are discussed.

关键词： deformed Coulomb potential energy spectrum coherent states photon number distribution quantum revivals

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Effects of colored noise on the dynamics of quantum entanglement of a one-parameter qubit-qutrit system

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Chinese Physics B 2022年第5期31卷 141-149页

作者： Odette Melachio Tiokang Fridolin Nya Tchangnwa Jaures diffo Tchinda Arthur Tsamouo Tsokeng Martin Tchoffo Research Unit of Condensed Matter Electronic and Signal ProcessingDepartment of PhysicsDschang School of Sciences and TechnologyUniversity of DschangPO Box:67 DschangCameroon Material Science Research Group Physics LaboratoryDepartment of PhysicsPost Graduate SchoolUniversity of MarouaPO Box:814 MarouaCameroon centre d’Etudes et de recherches en agronomie et en biodiversite Faculte d’Agronomie et des Sciences AgricolesUniversite de DschangCameroun

We analyzed the effect of colored noise on the negativity dynamics of a hybrid system consisting of a qubit-qutrit and not interacting,prepared from the start in an entangled one-parameter state and acting with noise in local and non-local *** this pink and brown noise we investigated two different situations:in the first situation,the noise is produced by a bistable oscillator with an unknown exchange rate;however,in the second situation,the noise is generated by a set of bistable *** found that entanglement decreases with time to zero,and undergoes the phenomenon of sudden death and *** pink noise is more prone to entanglement than the brown noise and the non-local environment is more prone to entanglement than the local *** the number of fluctuators is increased,entanglement decays faster and finally,for certain parameters of the initial state,the subsystems are not affected by the noise.

关键词： entanglement hybrid system qutrit colored noise

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Effects of classical random external field on the dynamics of entanglement in a four-qubit system

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Chinese Physics B 2021年第11期30卷 240-252页

作者： Edwige Carole Fosso Fridolin Tchangnwa Nya Lionel Tenemeza Kenfack Martin Tchoffo Research Unit of Condensed Matter Electronic and Signal ProcessingDepartment of PhysicsDschang School of Sciences and TechnologyUniversity of DschangPO Box:67 DschangCameroon Material Science Research Group Physics LaboratoryDepartment of PhysicsPost Graduate SchoolUniversity of MarouaPO Box:814 MarouaCameroon centre d’Etudes et de recherches en agronomie et en biodiversite Faculte d’Agronomie et des Sciences AgricolesUniversite de DschangCameroun

We investigate the dynamics of entanglement through negativity and witness operators in a system of four noninteracting qubits driven by a classical phase noisy laser characterized by a classical random external field(CREF).The qubits are initially prepared in the GHZ-type and W-type states and interact with the CREF in two different qubit-field configurations,namely,common environment and independent environments in which the cases of equal and different field phase probabilities are *** find that entanglement exhibits different decaying behavior,depending on the input states of the qubits,the qubit-field coupling configuration,and field phase *** the one hand,we demonstrate that the coupling of the qubits in a common environment is an alternative and more efficient strategy to completely shield the system from the detrimental impacts of the decoherence process induced by a CREF,independent of the input state and the field phase probabilities ***,we show that GHZ-type states have strong dynamics under CREF as compared to W-type *** the other hand,we demonstrate that in the model investigated the system robustness’s can be greatly improved by increasing the number of qubits constituting the system.

关键词： entanglement qubit and classical random external field

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Use of antibiotics in broiler production:Global impacts and alternatives

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Animal Nutrition 2018年第2期4卷 170-178页

作者： Youcef Mehdi Marie-Pierre Létourneau-Montminy Marie-Lou Gaucher Younes Chorfi Gayatri Suresh Tarek Rouissi Satinder Kaur Brar Caroline Cté Antonio Avalos Ramirez Stéphane Godbout Université Laval Faculté des sciences de l'agriculture et de l'alimentation Institut de Recherche et de développement en Agroenvironnement Université de Montréal Faculté de Médecine Vétérinaire Institut National de Recherche Scientifique centre National en électrochimie et en Technologies environnementales

Antibiotics are used to fight bacterial ***, a selective pressure gave rise to bacteria resistant to *** leaves scientists worried about the danger to human and animal *** strategies can be borrowed to reduce the use of antibiotics in chicken *** research has been carried out to look for natural agents with similar beneficial effects of growth *** aim of these alternatives is to maintain a low mortality rate, a good level of animal yield while preserving environment and consumer *** these, the most popular are probiotics, prebiotics, enzymes,organic acids, immunostimulants, bacteriocins, bacteriophages, phytogenic feed additives, phytoncides,nanoparticles and essential oils.

关键词： Broiler chicken Antibiotic Probiotic Prebiotic enzyme Essential oil

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Crystal structure and infrared spectrum of thallium holmium polyphosphate, TlHo(PO_3)_4

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Journal of Rare Earths 2008年第6期26卷 765-769页

作者： Karima Horchani-Naifer Jaouher Amami Mokhtar Férid Unité de recherches de Matériaux de Terres Rares Centre National de Recherches en Sciences des Matériaux

Crystals of thallium-holmium polyphosphate T1Ho（PO3）4 were grown by flux method technique and characterized by single crystal X-ray diffraction. Structure of T1Ho（PO3）4 was solved for the first time, and it crystallized in the monoclinic P21/n space group with the following unit-cell dimensions： a=1.02225（3） nm, b=0.88536（2） nm, c=1.09541（4） nm, β=105.888（1）°, V=0.95354（5） nm^3 and Z=4. The crystal structure was solved from 2174 independent reflections with final R1（F^2）=0.0442 and Rw（F^2）=0.0861 refined with 164 parameters. The atomic arrangement could be described as a long chain polyphosphate organization. Holmium atoms had eightfold coordination. The structure of T1Ho（PO3）4 consisted of HoO8 polyhedra sharing oxygen atoms with phosphoric group PO4. Infrared spectrum was investigated at room temperature in the frequencies range, 350--4000 cm^-1, showing some characteristic vibration bands of infinite chain structure of PO4 tetrahedra linked by bridging oxygen.

关键词： polyphosphate holmium crystal structure infrared spectroscopy rare earths

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Vortex　Simulation　of　Axisymmetrical　Flows　in　Cylindrical　***：Application　to　Pipes　Incorporating　an　Orifice　Plate

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Journal of Thermal Science 1995年第4期4卷 221-228页

作者： André Giovannini Yves Gagnon Université Paul Sabatier and centre d’études et de recherches de Toulouse Toulouse France Université de Moncton Campus d’Edmundston Edmundston Canada

The Random Vortex Method extended to an azisymmetrical flow is used in the study of the flow field inside pipes incorporating an orifice plate with different contraction ratios and different inlet velocity profiles. Three test-cases, each having experimental measurements available in the literature, are studied. In particular, instantaneous and average velocity fields along with the turbulent statistics for high Reynolds number flows are computed and compared to the corresponding experimental *** comparisons show the ability and the citations of the method. The results of the numerical simulations are used in the physical analysis of the flow fields and thus allow for a better understanding of the dynamics of the flow in pipes incorporating an orifice plate.

关键词： orifice plate axisymmetrical flows vorticity.

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Electron Auto-Localization Tailored by Its Thermal energy: dynamic Matrix Approach (dMA)

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Journal of Applied Mathematics and Physics 2021年第3期9卷 515-527页

作者： Idriss Fomadjo Fokou Michael Nana Jipdi Martin Tchoffo Lukong Cornelius Fai Research Unit Condensed Matter Electronics and Signal Processing Université de Dschang Dschang Cameroon department of Physics Higher Teacher Training College University of Bamenda Bambili Cameroon centre d’études et de recherches en agronomie et en biodiversité Faculté d’Agronomie et des Sciences Agricoles University of Dschang Dschang Cameroon

This paper investigates the thermal energy effect on electron auto-localization. The polaron characteristics (self-action potential and effective mass) are observed to be expressed via the renormalized electron-phonon coupling constant tailored by the thermal energy. Low temperatures are observed to favour auto-localization of the carrier while high temperatures favour polaron undressing and subsequent quenching of the quantum behaviour thereby rendering the system classical. The critical (transition) temperature τc expressed via the critical coupling constant ϒC is found to be the separating boundary between the quantum and the classical phases. Therefore, the polaron undergoes phase transition (from self-tapped to quasi free states) when the temperature of the medium is enhanced.

关键词： Autolocalization Quantum Phase Transition Self-Trapping Critical Temperature

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decentralized observers for a class of large-scale singular systems via LMI

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International Journal of Intelligent Computing and Cybernetics 2013年第2期6卷 158-181页

作者： Mejda Mansouri Latifa Boutat-Baddas Mohamed darouach Hassani Messaoud Ecole Nationale d’Ingenieurs de Monastir MonastirTunisie and Centre de Recherche en AutomatiqueNancy-UniversiteIUT de LongwyCosnes et RomainFrance centre de Recherche en Automatique de Nancy Nancy-UniversiteCosnes et RomainFrance Ecole Nationale d’Ingenieurs de Monastir MonastirTunisie

Purpose–The purpose of this paper is to propose a decentralized observer for large-scale singular ***/methodology/approach–In this paper,the authors investigate the problem of observers’design for large-scale singular *** proposed decentralized observer is based on a new parameterization of the generalized Sylvester equation *** considered system is partitioned into small-sizes interconnected subsystems with unknown ***–A decentralized observer based on new parameterization of generalized Sylvester *** performance of the proposed approach is illustrated by a numerical ***/value–The proposed approach unites the full-order,the reduced-order and the minimal order observer design for large-scale *** conditions of the existence of this observer are given in the linear matrix inequalities(LMI)form.

关键词： Systems theory design Control systems Large scale system decentralized observer Singular system Linear matrix inequalities

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Identification of pests and assessment of their damage on Carapa procera and Lophira lanceolata in Burkina Faso,West Africa

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Journal of Forestry Research 2017年第3期28卷 585-591页

作者： Baslayi Tindano Olivier Gnankine Amade Ouedraogo Mamadou Traore Jφrgen Axelsen Anne Mette Lykke Unite de Formation et de Recherche en Sciences de la vie et de la Terre Laboratoire d'Entomologie Fondamentale et AppliqueeUniversite de Ouagadougou03 BP 7021 OuagadougouBurkina Faso Unite de Formation et de Recherche en Sciences de la vie etde la Terre Laboratoire de Biologie et Ecologie VegetalesUniversite de Ouagadougou03 BP 7021 OuagadougouBurkina Faso INERA Institut de l'Environnement et de Recherches Agricoles01 BP 476 Ouagadougou 01Burkina Faso department of Bioscience Aarhus UniversityAarhusDenmark

Nontimber forest products are a source of income for women in rural African communities. However, these products are frequently damaged by insect pests. The present study investigates the diversity and damage rates of insect pests that attack Carapa procera seeds and Lophira lanceolata fruits. The experiment was set up in western Burkina Faso and, for C. carapa, consisted of pests collected from seeds that had fallen to the ground and from stockpiled seeds. For L. lanceolata, pests were collected from fruits on the trees, and on the ground. The collected samples were sent to the laboratory to estimate the proportion of damaged seeds/fruits and rear the insects. The results showed that Ephestia spp., Tribolium castaneum, Oryzeaphilus spp., and Tenebroides mauritanicus were the pests of Carapa procera seeds and Lophira lanceolata fruits. Ephestia spp. was recorded as the main pest of both C. proeera and L. lanceolata, whereas T. castaneum was only detected from seeds of L. lanceolata. For C. procera, the stocks were the most infested （29 %） by Ephestia spp. The infestation rate of fruits of L. lanceolata by Ephestia spp, on trees （31.42 ± 3.75 %） was less than the rate of fruits by T. castaneum on the ground （44.00 ± 3.5 %）. The different body sizes of Ephestia spp. may indicate the occurrence of two putative species, one from C. procera and another one from L. lanceolata. This work provides important information that could contribute to the setting up of a local-scale sustainable management framework for oil tree pests in Burkina Faso and surrounding countries.

关键词： Insect diversity Carapa procera Lophiralanceolata Ephestia spp. Pest management

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