Persistent control of a superconducting qubit by stroboscopic measurement feedback

Making a system state follow a prescribed trajectory despite fluctuations and errors commonly consists in monitoring an observable (temperature, blood-glucose level...) and reacting on its controllers (heater power, insulin amount ...). In the quantum domain, there is a change of paradigm in feedback since measurements modify the state of the system, most dramatically when the trajectory goes through superpositions of measurement eigenstates. Here, we demonstrate the stabilization of an arbitrary trajectory of a superconducting qubit by measurement based feedback. The protocol benefits from the long coherence time ($T_2>10 \mu$s) of the 3D transmon qubit, the high efficiency (82%) of the phase preserving Josephson amplifier, and fast electronics ensuring less than 500 ns delay. At discrete time intervals, the state of the qubit is measured and corrected in case an error is detected. For Rabi oscillations, where the discrete measurements occur when the qubit is supposed to be in the measurement pointer states, we demonstrate an average fidelity of 85% to the targeted trajectory. For Ramsey oscillations, which does not go through pointer states, the average fidelity reaches 75%. Incidentally, we demonstrate a fast reset protocol allowing to cool a 3D transmon qubit down to 0.6% in the excited state.Comment: 7 pages, 3 figures and 1 table. Supplementary information available as an ancilla fil

Аналіз сучасних підходів до визначення поняття “регіон”

Мета статті. Дослідити основні підходи до трактування поняття “регіон”

Insole customized Part 2: 2D/3D graphical process

Potrebe u području ortopedskih uložaka postaju sve važnije. Medicinska svrha ovih plantarnih proteza često je ispravljanje držanja ili biomehaničke neravnoteže koji imaju tendenciju da uzrokuju bol u raznim dijelovima tijela, ovisno o patologiji pacijenta. To se događa zbog povećanja broja ljudi s visokim tlakom ili onih koji imaju problema s dijabetesom ili drugim bolestima. No, cijena tih proizvoda može varirati. Bez obzira za što je terapijski proizvod bio predviđen, ekonomski model nije prilagođen za socijalno osiguranje. Za poboljšanje kvalitete proizvoda potreban je nov kreativan proces. Ovaj rad je nastavak prethodnih radova. Proces koji se koristio za otkrivanje antropometrijskih točaka na stopalu uključen je u proces izrade prilagođenih uložaka. Kombinacijom tehnike koja izdvaja otisak stopala, uz specifičan postupak koji koristi obris (siluetu) za stvaranje 2D oblika uloška i upotrebljava 3D oblik standardnog kalupa cipele stvorili smo 3D oblik uloška koji je prilagođen stopalu.The needs in the sector of orthopedic insoles are becoming more important. The medical purpose of these plantar prostheses is often to correct the posture or biomechanical imbalance that tends to cause pain in various areas of the body depending on the pathology of the patient. This is due to the progression of people who are increasingly obese or have problems with diabetes or other diseases. But, the cost of its products can vary from one to two or more depending on the quality of the product that requires adaptation by a manual process to the morphology of the foot. Whatever the therapeutic product envisaged, the economic model is no longer adapted to the needs of patients and the budgetary imperatives of social security. A new creative process is needed and must incorporate digital tools to reduce these manufacturing costs while improving the quality of products. This study is the continuity of previous works. The process that was used to detect the anthropometric points of the foot was incorporated into a process of creating customized insoles. By combining the technique that extracts the outline encompassing the footprint, a specific process that uses this outline to create the 2D shape of the insole and the using of 3D shape of the standard shoe-last, we have created the 3D shape of the insole adjusted to foot

Insole customized Part 1: Non-contact Method of Anthropometric points Detection for Feet

Bez obzira na ciljeve studije, bilo da se radi o morfološkoj klasifikaciji stopala ili prilagođavanju proizvoda poput ortopedskih uložaka / potplata ili prikladne obuće za atipična stopala, neophodno je pronaći racionalnu metodu za otkrivanje antropometrijskih točaka i krivulja. Studije o objašnjenju antropometrije stopala su malobrojne, a u nekim slučajevima predstavljaju suprotnosti mjerenjima između ručnog postupka i postupka automatskog skeniranja. Također, naš cilj bio je upotrijebiti beskontaktnu metodu mjerenja da se otkriju antropometrijske točke na stopalu. U ovoj metodi se predlažu različite tehnike praćenja pomoću različitih podesivih ravnina. U 3D grafičkom procesu, morfološke krivulje su lokalizirane pomoću tih antropometrijskih točaka i omogućuju identifikaciju stopala tim mjerenjima. Ona su uspoređena s mjerenjima pomoću 3D skenera stopala da bi se metoda otkrivanja antropometrijskih točaka mogla potvrditi i poboljšati metoda koju koriste ovi skeneri.Regardless of the objectives of the study, whether it is the morphological classification of the feet or the customization of products such as orthopedic insoles or appropriate footwear for atypical feet, it is the imperative to find a rational method for detecting the anthropometric points and curves. The studies explaining the anthropometry of the foot are very few and in some cases present contradictions in the measurements between the manual and automatic scanning processes. In addition, our goal was to implement a non-contact measurement method to detect the anthropometric points of feet. This method proposes different tracking techniques using different adjustable planes. In a 3D graphical process, the morphological curves have been located with the help of these anthropometrics points and allowed the identification of the foot by their measurements. These measurements were compared with those obtained by a 3D foot scanner to validate the detection method of anthropometric points and improve it by employing these scanners

Гранитоиды обрамления Криворожской структуры. Проблемы корреляции геологических тел и комплексов

Current population genetic models fail to cope with genetic differentiation for species with large, contiguous and heterogeneous distribution. We show that in such a case, genetic differentiation can be predicted at equilibrium by circuit theory, where conductance corresponds to abundance in species distribution models (SDM). Circuit-SDM approach was used for the phylogeographic study of the lepidopteran cereal stemborer Busseola fusca Füller (Noctuidae) across sub-Saharan Africa. Species abundance was surveyed across its distribution range. SDM models were optimized and selected by cross validation. Relationship between observed matrices of genetic differentiation between individuals, and matrices of resistance distance was assessed through Mantel tests and redundancy discriminant analyses (RDA). A total of 628 individuals from 130 localities in 17 countries were genotyped at 7 microsatellite loci. Six population clusters were found based on a Bayesian analysis. The eastern margin of Dahomey Gap between East and West Africa was the main factor of genetic differentiation. The SDM projections at present, last interglacial and last glacial maximum periods were used for estimation of circuit resistance between locations of genotyped individuals. For all periods of time, when using either all individuals or only East-African individuals, partial Mantel r and RDA analyses conditioning on geographic distance were found significant. Under future projections (year 2080), partial r and RDA significance were different. From this study, it is concluded that analytical solutions provided by circuit theory are useful for the evolutionary management of populations and for phylogeographic analysis when coalescence times are not accessible by approximate Bayesian simulations

Hospitalisations médicalement inappropriées au centre hopitalier de Dunkerque (étude des facteurs et impact du service d'accueil des urgences)

LILLE2-BU Santé-Recherche (593502101) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF

The role of native woody species in the restoration of Campos Rupestres in quarries

International audienceAbbreviations Dret = Dasyphyllum reticulatum; Jcar = Jacaranda caroba; Abon = Actinocephalus bongardii; Cfas = Calliandra fasciculata; Csem = Chamaecrista semaphora; Mfol = Mimosa foliolosa; Ccip = Collaea cipoensis; Dhir = Diplusodon hirsutus Dorb = Diplusodon orbicularis Hbyr = Heteropterys byrsonimifolia Lcam = Lavoisiera campos-portoana Mtax = Marcetia taxifolia; Thet = Tibouchina heteromalla; Lpac = Lafoensia pacari Kpet = Kielmeyera petiolaris Eell = Enterolobium ellipticum; Edys = Eugenia dysenterica; Ztub = Zeyhera tuberculosa Nomenclature Lista de Esp ecies da Flora do Brasil 201

Synthesis of the central tryptophan-leucine residue of celogentin C

International audiencehe synthesis of the central tryptophan residue of celogentin C is described featuring a Pd-catalyzed imine/enamine Heck-type reaction, a Pd-catalyzed Suzuki coupling, and an asym. Rh-catalyzed hydrogenation

Contribution à la mie en œuvre d'un ERP.

International audienc