131,017 research outputs found
Eudocima mazzeii Zilli & Hogenes 2002
No full textEudocima mazzeii Zilli & Hogenes, 2002 (Figs 13: I–J, 21: A, 26: I–K, 32:D) This species looks very similar to E. sikhimensis but it has broader wings and differs further as described above. It is found in the northeastern Philippines in Luzon and on the island of Mindoro (Zilli & Hogenes 2002), especially around the higher elevations of Banaue.Published as part of Borth, Robert J. & Kons, Hugo L., 2022, Mitochondrial genetics of Ophiderini, with a new species from the Eudocima phalonia species group (Lepidoptera: Noctuidae: Calpinae), pp. 1-151 in Zootaxa 5148 (1) on page 20, DOI: 10.11646/zootaxa.5148.1.1, http://zenodo.org/record/660548
Design and comparative analysis of single-path and epidemic approaches to information and energy management in wireless sensor networks
No full textIntelligent energy management is a key challenge in Wireless Sensor Networks. The choice of an appropriate routing algorithm constitutes a critical factor, especially in unstructured networks where, due to their dynamic nature, a reactive routing protocol is necessary. Such networks often favour packet flooding to fulfil this need. One such algorithm is IDEALS, a technique proposed in the literature, which balances energy consumed with information delivered. This paper evaluates the use of a single-path solution with IDEALS to increase efficiency. Simulation results comparing the two approaches show that the single-path algorithm outperforms flooding in terms of energy consumption for any network size. Furthermore the benefit of IDEALS is preserved as its combination with the single-path algorithm maximises information throughput
Il reclutamento emergenziale del personale sanitario nella (e oltre la) emergenza pandemica
No full textHaplopacha lunata Dupont, Simonsen & Zilli, 2016, sp. nov.
No full textHaplopacha lunata sp. nov. (Fig. 1 I) Type (s): holotype ♂, in NHM. Type locality: District of the Great Craters, Tanganyika Territory. Diagnosis. This species is most easily distinguished by the crescent-shaped discal spot, grey lunulate submarginal spots of forewing and pale-coloured hind wing. Distribution and localities. Only a single specimen from Northern Tanzania. Flight period. February–March. Material examined: Holotype male (Fig. 1 I) (BMNH (E)_ 1377279, NHM London, Tams dry genitalia dissections (1955 / 796) mounted on slide: Lasiocampidae # 1572 (Fig. 6 D)), District of the Great Craters, Tanganyika Territory, Feb.–March 1921, TA. Barnes [leg.]. Description: Forewing triangular, grey-coloured, with pale cinereous tinge in basal and distal fields. ante- and postmedial bands not sharply defined all the way to costa, thus making median field somewhat blurred anteriorly Antemedial line straight and very oblique inferiorly. Submarginal spots darker grey, lunulate. Basal wing spot oval with major axis oriented parallel to the costa. Discal wing spot crescent-shaped, spanning the entire width of open discal cell and lined with white scales along inner margin. Hind wing pale beige-brown. Male genitalia (Fig. 6 D): Vinculum undifferentiated, U-shaped. Cucullus very small and flimsy, finger-like, originating high on vinculum-tegumen ring. Sacculus large, overpassing cucullus by at least a full length of the cucullus itself with stout, distally spatulate saccular process, which is exteriorly ornamented with small spines. Saccular lobes about 1 / 3 of basal width of sacculus, with sparse covering of long setae. Uncus and gnathos missing from the preparation. Phallus broad cylindrical, slightly curved. Vesica as a cylindrical elongation of phallus with single terminal straight cornutus, at least ½ as long as phallus itself. Etymology. The species name lunata refers to the characteristic crescent shape of the discal wing spot.Published as part of Dupont, Steen, Simonsen, Thomas J. & Zilli, Alberto, 2016, Haplopacha (Lepidoptera: Lasiocampidae) reviewed: four new species, first descriptions of the genitalia of both sexes, and unique alar scale organs, pp. 445-457 in Zootaxa 4109 (4) on page 454, DOI: 10.11646/zootaxa.4109.4.3, http://zenodo.org/record/26585
Prestazioni di lavoro accessorio, inclusione e flexicurity
No full textIl saggio approfondisce il tema dei c.d. "voucher" per prestazioni di lavoro accessorio nel prisma della c.d. flexicurity europea
Somatostatin analogs for gastric carcinoids : for many, but not all
No full textGastric carcinoids (GCs) are classified as: type I, related to hypergastrinemia due to chronic atrophic gastritis (CAG), type II, associated with Zollinger-Ellison syndrome in multiple endocrine neoplasia type 1, and type III, which is normogastrinemic. The management of type-I gastric carcinoids (GC1s) is still debated, because of their relatively benign course. According to the European Neuroendocrine Tumor Society guidelines endoscopic resection is indicated whenever possible; however, it is not often feasible because of the presence of a multifocal disease, large lesions, submucosal invasion or, rarely, lymph node involvement. Therefore, somatostatin analogs (SSAs) have been proposed as treatment for GC1s in view of their antisecretive, antiproliferative and antiangiogenic effects. However, in view of the high cost of this therapy, its possible side effects and the relatively benign course of the disease, SSAs should be reserved to specific subsets of "high risk patients", i.e. , those patients with multifocal or recurrent GCs. Indeed, it is reasonable that, after the development of a gastric neuroendocrine neoplasm in patients with a chronic predisposing condition (such as CAG), other enterochromaffin-like cells can undergo neoplastic proliferation, being chronically stimulated by hypergastrinemia. Therefore, definite indications to SSAs treatment should be established in order to avoid the undertreatment or overtreatment of GCs
Eudocima lequeuxi Brou & Zilli 2016
No full textEudocima lequeuxi Brou & Zilli, 2016 (Figs 15: E–F, 21: H, 27: A–D, 32: J, 33: G–H, N–O, 34: I–J, 35: I–J, 36: H, 37: E–F, J–K, 38: J–L, 40: C–D, 42: B–C, E–F, 44: H, 45: A, 46: I, 47: J–K, 48: D–E, 51: D–E, 53: D–E, 55: D–E, 57: C–E, 58: D, H, 92: B) The diagnosis is covered in the E. afrikana description. It is found from east central Africa to South Africa. The only other mainland African Eudocima besides E. afrikana are E. divitiosa and E. materna. Eudocima divitiosa has no hindwing medial patch, and in E. materna the medial patch is reduced to a round dot.Published as part of Borth, Robert J. & Kons, Hugo L., 2022, Mitochondrial genetics of Ophiderini, with a new species from the Eudocima phalonia species group (Lepidoptera: Noctuidae: Calpinae), pp. 1-151 in Zootaxa 5148 (1) on page 24, DOI: 10.11646/zootaxa.5148.1.1, http://zenodo.org/record/660548
PHYLOGENETIC ANALYSIS ON FOUR SPECIES OF TILAPIA (Oreochromis niloticus, Tilapia zilli, Sarotherodon galilaeus, Sarotherodon melanotheron) IN NIGERIA
No full textAn investigation into evolutionary history of four species of Tilapia species was carried out as a taxonomy tool to relate most tilapia species found within the Nigerian waters. These species are (Oreochromis niloticus, Tilapia zilli, Sarotherodon galilaeus, Sarotherodon melanotheron). Blood samples from the four species of tilapia were collected and preserved on Fast Technology for Analysis (FTA) cards for DNA extraction and PCR amplification. The various nucleotide sequences of the four Tilapia species found in the Mitochondria D-loop region were copied and aligned with the use of BioEdit and Mega 6.0 softwares. Three phylogenetic trees were drawn to show the evolutionary relationship amongst the four species of tilapia. The results indicated that Sarotherodon galilaeus and Sarotherodon melanotheron are sister texa and share a common ancestor with Oreochromis niloticus. Tilapia zilli is an out group which is the most distantly related to the three species (Oreochromis niloticus, Sarotherodon galilaeus Sarotherodon melanotheron). Tilapia zilli (Israel) and Tilapia zilli are sister texa and share a common ancestor in Tilapia sparmanii. The study also revealed ancestry relationship among other species of fish Cyprinus caprio and Clarias gariepinus formed a clade with the three tilapia species (Tilapia zilli, Tilapia zilli (Israel) and Tilapia sparmanii), which share an unknown but common ancestor
Preconditioned iterative algorithms for large sparse unsymmetric problems
No full textA numerical study of the efficiency of the generalized conjugate residual methods (GCR) is performed using three different preconditioners all based upon an incomplete LU factorization. The GCR behavior is evaluated in connection with the solution of large, sparse unsymmetric systems of equations, arising from the finite element integration of the diffusion-convection equation for 2-dimensional (2-D) and 3-D problems with different Peclet and Courant numbers. The order of the test matrices ranges from 450 to 1700. Results from a set of numerical experiments are presented and comparisons with preconditioned GCR methods and with direct method are carried out
High-frequency measurement of the interferometric phase, the Faraday rotation, and the Cotton-Mouton effect with a single detector in a far-infrared interferometer-polarimeter
No full textA novel polarization modulation method is proposed, for a possible application in the measurement of the electron density and magnetic field profiles by an interferometer-polarimeter diagnostic in the Divertor Test Tokamak (DTT) device. Starting from the output of a CO2 pumped CHCOH3 far-infrared (FIR) laser (lambda = 118.8 mu m), three waves with frequencies omega, omega - delta omega, and omega + delta omega are generated and coherently combined to produce a polarization modulated laser beam suitable to probe the DTT plasma in a multichord, double-pass scheme. A second, coherently pumped, FIR cavity operating at the slightly detuned omega ' frequency, acts as a local oscillator for the interferometric measurement. By this polarization modulation method, it is possible to simultaneously measure the interferometric phase, the Faraday rotation angle, and the Cotton-Mouton effect, all by a single detector, while keeping to an acceptable value the perturbation of the interferometric phase due to the time modulated polarization. In this paper, we describe the principles of the method and discuss its possible application in the poloidal interferometer-polarimeter diagnostic of the DTT device. A single chord mock-up experiment is in preparation to experimentally test the technique
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