Search results for "Pf"
showing 10 items of 526 documents
Harmful and Protective Effects of Phenolic Compounds from African Medicinal Plants
2014
Phenolic phytochemicals include flavonoids, phenolic acids, tannins, lignans, coumarins, quinones, xanthones, cucurmin, and several other plant compounds owing hydroxyl group bonded directly to an aromatic hydrocarbon group. In plants, they play a variety of protective effects against abiotic stresses like UV light or biotic stresses such as predator and pathogen attacks. This role is exploited by humans to treat several ailments including bacterial, fungal, protozoal and viral infections, inflammation, cancer, and diabetes. Numbers of them are known to display direct protection on cells or organs in humans and animals. In contrast, some of others rather have harmful or toxic effects. In th…
Copiste et créateur : les paradoxes de l'écrivain romantique
2015
International audience; L’article analyse deux célèbres figures de copistes romantiques, celle d'Anselme, le héros du Vase d'or de Hoffmann (1814), et celle d'Akaki Akakiévitch, le héros du Manteau de Gogol (1843). Il s’interroge sur le rapport entre copie et création à l’époque romantique.
Noziedzīgi iegūtu līdzekļu legalizācijas un terorisma un proliferācijas finansēšanas raksturojums un to risku izvertējums Latvijas komercbankās
2022
Bakalaura darba tēma ir „Noziedzīgi iegūtu līdzekļu legalizācijas un terorisma un proliferācijas finansēšanas raksturojums un to risku izvērtējums Latvijas komercbankās”. Bakalaura darba mērķis ir, pamatojoties uz teorētiskiem aspektiem, aptaujas rezultātiem un statistikas datiem, izpētīt un raksturot noziedzīgi iegūtu līdzekļu legalizācijas un terorisma un proliferācijas finansēšanas būtību, izvērtējot ar šiem noziegumiem saistītos riskus Latvijas kredītiestādēs, kredītiestāžu lomu un darbības šo risku novēršanā, kā arī vispārīgi raksturot nacionālās NILLTPFN sistēmas efektivitāti un noziedzīgi iegūtu līdzekļu legalizācijas tendences Latvijā. Bakalaura darba rezultātā tiks izdarīti secināj…
Solution of universal nonrelativistic nuclear DFT equations in the Cartesian deformed harmonic-oscillator basis. (IX) HFODD (v3.06h) : a new version …
2021
We describe the new version (v3.06h) of the code HFODD that solves the universal nonrelativistic nuclear DFT Hartree-Fock or Hartree-Fock-Bogolyubov problem by using the Cartesian deformed harmonic-oscillator basis. In the new version, we implemented the following new features: (i) zero-range three- and four-body central terms, (ii) zero-range three-body gradient terms, (iii) zero-range tensor terms, (iv) zero-range isospin-breaking terms, (v) finite-range higher-order regularized terms, (vi) finite-range separable terms, (vii) zero-range two-body pairing terms, (viii) multi-quasiparticle blocking, (ix) Pfaffian overlaps, (x) particle-number and parity symmetry restoration, (xi) axializatio…
Fractional differential equations solved by using Mellin transform
2014
In this paper, the solution of the multi-order differential equations, by using Mellin Transform, is proposed. It is shown that the problem related to the shift of the real part of the argument of the transformed function, arising when the Mellin integral operates on the fractional derivatives, may be overcame. Then, the solution may be found for any fractional differential equation involving multi-order fractional derivatives (or integrals). The solution is found in the Mellin domain, by solving a linear set of algebraic equations, whose inverse transform gives the solution of the fractional differential equation at hands.
Mellin transform approach for the solution of coupled systems of fractional differential equations
2015
In this paper, the solution of a multi-order, multi-degree-of-freedom fractional differential equation is addressed by using the Mellin integral transform. By taking advantage of a technique that relates the transformed function, in points of the complex plane differing in the value of their real part, the solution is found in the Mellin domain by solving a linear set of algebraic equations. The approximate solution of the differential (or integral) equation is restored, in the time domain, by using the inverse Mellin transform in its discretized form.
Numerical Investigations of an Implicit Leapfrog Time-Domain Meshless Method
2014
Numerical solution of partial differential equations governing time domain simulations in computational electromagnetics, is usually based on grid methods in space and on explicit schemes in time. A predefined grid in the problem domain and a stability step size restriction need. Recently, the authors have reformulated the meshless framework based on smoothed particle hydrodynamics, in order to be applied for time domain electromagnetic simulation. Despite the good spatial properties, the numerical explicit time integration introduces, also in a meshless context, a severe constraint. In this paper, at first, the stability condition is addressed in a general way by allowing the time step inc…
Étude typologique, technologique et culturelle de la céramique du Petit-Paulmy à Abilly (Indre-et-Loire)
2009
Anhand einer qualitativen und quantitativen Studie wurden die minimale und die maximale Anzahl der dem Endneolithikum zugeordneten Keramikindividuen ermittelt. Der Corpus umfasst drei typologische und technische Gruppen, die drei chronologischen und kulturellen Phasen entsprechen. Eine Quantifizierung der unterschiedlichen Formen vermittelt ein Bild des endneolithischen Keramikrepertoires des Fundplatzes. Der für die Herstellung der Keramik benutzte Ton ist lokaler Herkunft. Es existiert eine Korrelation zwischen der Dicke der Wandung, der Form der Gefäße und den unterschiedlichen Herstellungstechniken (Glättung, Schaben, Schlagen, Kieselglättung). Die Gefäße der drei Hauptformen wurden in …
Interassay and interobserver comparability study of four programmed death-ligand 1 (PD-L1) immunohistochemistry assays in triple-negative breast canc…
2021
Different immunohistochemical programmed death-ligand 1 (PD-L1) assays and scorings have been reported to yield variable results in triple-negative breast cancer (TNBC). We compared the analytical concordance and reproducibility of four clinically relevant PD-L1 assays assessing immune cell (IC) score, tumor proportion score (TPS), and combined positive score (CPS) in TNBC. Primary TNBC resection specimens (n = 104) were stained for PD-L1 using VENTANA SP142, VENTANA SP263, DAKO 22C3, and DAKO 28–8. PD-L1 expression was scored according to guidelines on virtual whole slide images by four trained readers. The mean PD-L1 positivity at IC-score ≥1% and CPS ≥1 ranged between 53% and 75% with th…
Improved primary regulation for minimum energy losses in islanded microgrids
2017
In this paper, an improved primary regulation is proposed for grid forming units supplying islanded microgrids. A minimum losses Optimal Power Flow is run off-line to devise the operating set points composing the primary regulation curve. In this way, after load perturbations, generators can reach an optimized operating point for a given and unique minimum losses energy flows distribution. The idea is to skip the hierarchical control architecture and provide a feasible and optimized operating point. A case study over 24 hours shows the effectiveness of this new approach as well as the improved operation quality of the system.