53 research outputs found
Dacus (Leptoxyda) semisphaereus Becker 1903
No full textDacus (Leptoxyda) semisphaereus Becker, 1903 Dacus semisphaereus Becker, 1903: 139. Holotype. Egypt (ZMHB). Dacus pumilo Munro, 1948: 48. Holotype. Ethiopia (Harar: Dire Dawa) (SANC). Dacus semisphaereus Foote, 1984: 83. Misspelling of semisphaereus Becker, attributed to "author". Distribution. AF: Ethiopia, Sudan. PA: Egypt, Saudi Arabia. Egyptian localities. Unknown. Efflatoun (1924a) listed this species as recorded from Egypt according to Becker’s type in Berlin Museum that captured from Egypt. Host plants. Unknown. Dates of collection. Unknown.Published as part of El-Hawagry, Magdi S., 2017, Catalogue of Egyptian Tephritoidea (Diptera: Schizophora: Acalyptratae), pp. 151-190 in Zootaxa 4299 (2) on page 163, DOI: 10.11646/zootaxa.4299.2.1, http://zenodo.org/record/84323
Euarestella iphionae
No full textEuarestella iphionae (Efflatoun, 1924) Euaresta iphionae Efflatoun, 1924b: 152. Holotype. Egypt (Wadis Hussein, Hoff, Rishrash, Digla & Garawy) (ESEC). Euarestella iphioniae Foote, 1984: 87. Misspelling, attributed to "author". Distribution. AF: Sudan. PA: Egypt, Iran, Israel, Saudi Arabia. Egyptian localities. Eastern Desert: Gebel Asfar, Suez Road, Wadi Abu Nossour, Wadi Digla, Wadi Garawy, Wadi Gharagid, Wadi Hoff, Wadi Hussein, Wadi Rishrash, Wadi Um Elek, Wadi Zohleiga. Lower Nile Valley and Delta: Ezbet El-Nakhl, Faraskour, Giza, Qubba, Shoubra. Sinai: Wadi Gedeirat. Host plants. Iphiona mucronata (Forssk.) Asch. & Schweinf. Dates of collection. Throughout the year.Published as part of El-Hawagry, Magdi S., 2017, Catalogue of Egyptian Tephritoidea (Diptera: Schizophora: Acalyptratae), pp. 151-190 in Zootaxa 4299 (2) on page 171, DOI: 10.11646/zootaxa.4299.2.1, http://zenodo.org/record/84323
Eristalinus (Eristalodes) taeniops
No full textEristalinus (Eristalodes) taeniops (Wiedemann, 1818) Eristalis taeniops Wiedemann, 1818: 42. Type locality: South Africa (Cape). Helophilus pulchriceps Wiedemann in Meigen, 1822. Type locality: Portugal. Eristalis torridus Walker, 1849: 612. Type locality: Unknown. Eristalis secretus Walker, 1849: 620. Type locality: Unknown. Eristalis aegyptius Walker, 1849: 621. Type locality: Egypt. Eristalis communis Adams, 1905: 162. Type locality: Zimbabwe [as Rhodesia] (Harare). Eristalis concinna Abréu, 1924: 109. Type locality: Canary Is. (La Palma). Eristalis completa Abréu, 1924: 110 (as var. of taeniops). Type locality: Canary Is. (La Palma). Material examined: 1 male, 2 females, Wadi Digla, 5.VIII.2001, leg. El-Hawagry; 2 females, Kom Osheem, 2.III.1999, leg. El-Hawagry; 1 male, Abu-Ghalib, 7. VI.2 0 17, leg. El-Hawagry [in personal collection of El- Hawagry]. World distribution: AF: Eastern parts of the Afrotropical Region down to South Africa, UAE, Yemen. NE: USA (California to Florida). OR: India, Nepal, Pakistan. PA: Afghanistan, Canary Is., China, Egypt, Europe (Portugal, Spain and round the Mediterranean basin (southern France including Corsica, Italy including Sardinia and Sicily, parts of the former Yugoslavia, Albania, Romania, Cyprus, Greece (including Crete and Rhodes), Turkey), Lebanon, Iran, Israel, Libya, Morocco, Saudi Arabia, Syria, Transcaucasia, Tunisia. Egyptian localities: Widespread in Egypt [Sources: Efflatoun (1922), Shaumar & Kamal (1978) and the examined material collected by the first author]. Activity period in Egypt: Throughout the year. Remarks: E. taeniops is one of the commonest and largest of the Egyptian Syrphidae (Efflatoun 1922). Adults come to the edges of small streams to drink during hot weather. They usually visit flowers of Eryngium, Euphorbia, Hedera, Mentha, Rubus, Senecio and Solidago (Marcos-García 1985; Speight 2017). The rat-tailed larvae feed in water polluted by decaying organic matter, such as sewage treatment ponds (Mahmoud et al. 1999).Published as part of El-Hawagry, Magdi S. & Gilbert, Francis, 2019, Catalogue of the Syrphidae of Egypt (Diptera), pp. 201-248 in Zootaxa 4577 (2) on pages 219-220, DOI: 10.11646/zootaxa.4577.2.1, http://zenodo.org/record/262964
Eristalinus (Lathyrophthalmus) megacephalus
No full textEristalinus (Lathyrophthalmus) megacephalus (Rossi, 1794) Syrphus megacephalus Rossi, 1794: 63. Type locality: Italy (Toscana [as "Etruria"]). Eristalis laetus Wiedemann, 1830: 192. Type locality: China. Eristalis fasciatus Meigen, 1835: 70. Type locality: Germany (Bavaria: Munchen region). Eristalis fasciatus Meigen, 1838: 143. Type locality: Germany (Bavaria). Eristalis pallinevris Macquart, 1842: 106. Type locality: India. Eristalis fasciatus Germar, 1844: pl 23. Type locality: Turkey & southern Europe. Eristalis quinquevittatus Macquart, 1849: 465. Type locality: Algeria. Eristalis quinquefasciatus Schiner, 1849: 364. Nomen nudum [South Africa]. Eristalis ridens Walker, 1849: 610. Type locality: Albania. Eristalis obscuritarsis Meijere, 1908: 250. Type locality: Indonesia (Java: Semarang); Malaya; Singapore; India. Lathyrophthalmus ishigakiensis Shiraki, 1968: 177. Type locality: Japan (Ryukyu Is., Ishigaki Is.). Material examined: 1 male, Wadi Digla, 1.II.1926, leg. Farag; 1 male, 1 female, Helwan, 2.XII.1934, leg. Shafik [EFC]; 1 male, Wadi El-Natroun, 8.VI.2017, leg. El-Hawagry [in personal collection of El-Hawagry]. World distribution: AF: Cape Verde Is., Madagascar, South Africa, UAE, Yemen. AU: Guam. OR: India, Indonesia (Java), Nepal, Singapore, Sri Lanka, Pakistan. PA: Afghanistan, Algeria, China, Egypt, Europe (southern Spain and coastal parts of Italy round the Mediterranean basin (including islands, e.g. Corsica, Malta, Sicily, Crete) to Turkey), Iran, Taiwan. Egyptian localities: Widespread in Egypt [Sources: Efflatoun (1922), Shaumar & Kamal (1978), the examined museum material and the examined material collected by the first author]. Activity period in Egypt: Throughout the year. Remarks: E. megacephalus is fairly common in Egypt, especially in the two autumn months September and October (Efflatoun 1922). It is a fast-flying species around tall waterside vegetation, and usually visits flowers of the genus Solidago (Speight 2017). The rat-tailed larvae filter bacteria from polluted water (Mahmoud et al. 1999). Many authors have recorded it under the name quinquelineatus Fabricius.Published as part of El-Hawagry, Magdi S. & Gilbert, Francis, 2019, Catalogue of the Syrphidae of Egypt (Diptera), pp. 201-248 in Zootaxa 4577 (2) on page 221, DOI: 10.11646/zootaxa.4577.2.1, http://zenodo.org/record/262964
Scaeva (Scaeva) albmaculata
No full textScaeva (Scaeva) albmaculata (Macquart 1842) Syrphus albomaculatus Macquart, 1842: 146 (86). Type locality: Egypt (Mont Sinai) and Algeria (Alger). Syrphus seleniticus Macquart, 1842: 304. Type locality: Germany. Lasiophticus gemellarii Rondani, 1846: 157. Type locality: Italy (Sicily: ad montem Aetnam [= Etna]). Lasiopticus albomaculatus var. sulphureus Sack in Visser, et al., 1935: 401. Type locality: China (Karakorum Mts.). Olbiosyrphus scufinus Dzhafarova, 1974: 42. Type locality: Azerbaijan (Agdzhabedi district). Material examined: 2 females, Wadi El-Natroun, 15.VIII.1994, leg. El-Hawagry; 1 male & 4 females, Fayoum, 17.IV.1924, leg. Efflatoun; 1 female, Fayoum, El Athar, 15.III.1947, leg. Sh. & Roman; 1 female, Helwan, 1.IV.1938, leg. Farag; 1 male, Mariout, 2.V.1921, leg. Efflatoun; 1 female, Ogret El-Sheikh, 21.II.1927, leg. Farag [EFC]. World distribution: AF: Cape Verde Is., Yemen. OR: India, Pakistan. PA: Afghanistan, Algeria, Canary Is., China, Egypt, Europe (widespread), Iran, Kuwait, Lebanon, Madeira, Mongolia, Morocco, Saudi Arabia, Tunisia. Egyptian localities: Coastal Strip: Alexandria, Mariout. Eastern Desert: Suez Road, Wadies south east of Cairo. Fayoum: El athar, Fayoum City, Tamiya. Lower Nile Valley & Delta: Abu-Rawash, Cairo, El-Marg, El- Menofiya, Ezbet El-Nakhl, Helwan, Kirdassa, Khusous, Maadi, Quisna. Sinai: Ein Gedeirat, Mount Sinai, Wadi El-Arbaein, Wadi El-Rabba, Wadi Garagneyia. Western Desert: Kharga Oasis, Wadi El-Natroun. [Sources: Efflatoun (1922), Shaumar & Kamal (1978), the examined museum material and the examined material collected by the first author]. Activity period in Egypt: Throughout the year. Remarks: Efflatoun (1922) caught adults of S. albomaculata hovering over and around Iphiona mucronata and Zygophyllum coccineum in Wadi Hoff, at and even after sunset.Published as part of El-Hawagry, Magdi S. & Gilbert, Francis, 2019, Catalogue of the Syrphidae of Egypt (Diptera), pp. 201-248 in Zootaxa 4577 (2) on pages 210-211, DOI: 10.11646/zootaxa.4577.2.1, http://zenodo.org/record/262964
Synthesis of insightful algorithms
No full text"A methodology is developed for the synthesis of Insightful Algorithms. We define ""Insightful Algorithm"" as an analog of a biological system which is capable of fusing environmental observations with multiple predictive models of its process and/or its relationship to its environment, in the form of a Generalized Body of Evidence, which it then uses to respond to contingencies. These combine probability density functions arising from the environmental observations and the sensors measurements, to membership functions representing the expectations of the system's models. This couples Probability Theory to Fuzzy Set Theory, and uses Zadeh's concept of the probability of a Fuzzy event. Estimation of the future performance level uses a methodology based on the Algebra of Logic and Measure Theory where exact analytical representations of the fuzzy logical operations are derived."The implementation of the constructed system is achieved by using the Blackboard Paradigm. In this context, it acts as a synchronization scheme over a distributed processing configuration, a global database, and a job control language. The multiple processors are used for distributing the tasks over the network among different processors with the job control file on a higher hierarchy. A symbolic model based on the Emergency Operating Procedures (EOPs) is used in the form of production rules describing logically the system's operational mode. The system's models chosen are based on the statistical forecasting and time series analysis methods.The developed methodology is applied to the task of monitoring a nuclear power plant with the objective of maximizing its future performance and anticipating any undesirable future conditions so as to steer the system away from them rather than just react to them. The synthesis of the modeling approach is illustrated for the construction of an insightful nuclear plant monitoring system for a Boiling Water Reactor. The insightful ability of the proposed approach is compared to results of actual nuclear power plant transients, to transients generated by numerical thermal hydraulic codes, and to transients generated on plant simulators. It appears that the proposed methodology offers a promising approach to the task of the predictive monitoring a nuclear power plant.Made available in DSpace on 2011-05-07T13:44:53Z (GMT). No. of bitstreams: 2
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Eupeodes (Metasyrphus) corollae
No full textEupeodes (Metasyrphus) corollae (Fabricius, 1794) Syrphus corollae Fabricius, 1794: 306. Type locality: Germany (Kilia [= Kiel]). Musca vorax Geoffroy, 1785: 486. Type locality: France (Paris). Musca pyrorum Schrank, 1803: 114. Type locality: Germany (Baiern [= Bavaria]). Scaeva olitoria Fallén, 1817: 43. Type locality: Sweden (Svecia). Syrphus lacerus Meigen, 1822: 301. Type locality: Austria. Syrphus crenatus Macquart, 1829: 243. Type locality: France. Syrphus flaviventris Macquart, 1829: 240. Type locality: France. Syrphus fulvifrons Macquart, 1829: 240. Type locality: France. Syrphus nigrifemoratus Macquart, 1829: 241. France. Syrphus terminalis Wiedemann, 1830: 135. Type locality: Egypt. Scaeva annularis Curtis, 1837: 252. England. Nomen Nudum. Scaeva octomaculata Curtis, 1837: 219. Type locality: England. Syrphus disjunctus Macquart, 1842: 148. Type locality: Algeria. Syrphus algirus Macquart, 1849: 469. Type locality: Algeria. Syrphus corolloides Macquart, 1850: 460. Type locality: Unknown. Syrphus dentatus Walker, 1852: 229. Type locality: South Africa. Syrphus cognatus Loew, 1858: 378. Type locality: South Africa (Eastern Cape [as "Caffraria"]). Syrphus berber Bigot, 1884: 87. Type locality: Morocco. Metasyrphus candidus Matsumura, 1918: 17. Japan (Hokkaido). Metasyrphus libyensis Nayar, 1978: 539. Libya (Benghazi). Material examined: 4 males & 6 females, St. Catherine, 28.VIII.1996 (El-Hawagry) on Mentha; 2 females, Wadi Digla, 2.V.1999 (El-Hawagry) on Echinops; 1 male, 3 females, Zaranik, 4.IV.2001 (El-Hawagry) [in personal collection of El-Hawagry]. World distribution: AF: Mauritius, South Africa. OR: India, Pakistan. PA: Afghanistan, Algeria, Austria, Belgium, Canary Is., China, Czech Republic, Denmark, Egypt, Estonia, Finland, France, Georgia, Germany, Greece, Iceland, Iran, Iraq, Ireland, Italy, Japan, Kazakhstan, Kyrgyzstan, Latvia, Luxembourg, Madeira, Mongolia, Morocco, Netherlands, Norway, Russia, Slovakia, South Korea, Spain, Sweden, Switzerland, Taiwan, Tunisia, Turkmenistan, Ukraine, United Kingdom, Uzbekistan. Egyptian localities: A very common species, distributed in all Egyptian ecological zones [Sources: Efflatoun (1922), Shaumar & Kamal (1978) and the examined material collected by the first author]. Activity period in Egypt: Throughout the year. Remarks: E. corollae is one of the commonest of the Egyptian Syrphids (Efflatoun 1922). It prefers grassland, dune systems and dry river beds. It is largely anthropophilic, occurring in most sorts of farmland (including arable crops), suburban gardens, orchards and parks. It settles on low-growing vegetation, and visits the margins of streams, ponds and pools to drink in hot weather. In Europe, it has been recorded on an extensive list of flowers, especially the Umbelliferae (De Buck 1990; Speight 2017).Published as part of El-Hawagry, Magdi S. & Gilbert, Francis, 2019, Catalogue of the Syrphidae of Egypt (Diptera), pp. 201-248 in Zootaxa 4577 (2) on pages 207-208, DOI: 10.11646/zootaxa.4577.2.1, http://zenodo.org/record/262964
Eumerus amoenus Loew 1848
No full text<i>Eumerus amoenus</i> Loew, 1848 <p> <i>Eumerus amoenus</i> Loew, 1848a: 132. Type locality: Italy, Greece, Sicily.</p> <p> <b>Material examined</b>: 1 female, Kom Oshem, 25.III.2001, leg. El-Hawagry [in personal collection of El-Hawagry]; 1 female, Tisfa, 31.VIII.1929, leg. H.C.E. & M.T., specimen published in Shaumar & Kamal (1978); 1 male, Burg, 7.II.1927, leg. H.C. E & M.T.; 1 female, Helwan, 12.X.1935, leg. Farag; Ismailia, 20.XI.1926, leg. Tewfik [EFC]; 2 males, 1 female, Mariout, El-Burg, 7.III.1925, leg. Efflatoun, specimens published in Shaumar & Kamal (1978) [PPDD].</p> <p> <b>World distribution</b>: PA: Algeria, Arabian Peninsula, Armenia, Azerbaijan, Azores, Canary Is., Egypt, France, Georgia, Greece, Italy, Mongolia, Morocco, Spain, Russia, Switzerland, Tajikistan, Turkey, former Yugoslavia.</p> <p> <b>Egyptian localities</b>: Coastal Strip: Abu-Mina, El-Burg, Mariout. Eastern Desert: Suez, Wadi Ibtadi. Fayoum: Kom Oshem. Lower Nile Valley & Delta: Abu-Rawash, Boulaq El-Dakrour, Cairo, El-Katta, El-Mansouriya, Ezbet El-Nakhl, Kafr Hakim, Kirdassa, Kombira, Maadi, Qubba, Shubra, Tisfa. Upper Nile Valley: Komombo. Western Desert: Kharga Oasis. [Sources: Efflatoun (1922), Shaumar & Kamal (1978), the examined museum material and the examined material collected by the first author].</p> <p> <b>Activity period in Egypt</b>: Throughout the year.</p> <p> <b>Remarks</b>: <i>E. amoenus</i> is often bred fromonion, <i>Allium cepa</i> L. (Shaumar & Kamal 1978), where it is regarded as a pest (Gendy 1978). Efflatoun (1922) stated that <i>E. amoenus</i> is the commonest species of the genus in Egypt, and may be found from October to June throughout the Nile Valley from the Mediterranean coast to Upper Egypt and in Fayoum. This species flies among low-growing vegetation at up to 1m from the ground, often in partiallyshaded conditions. It uses short vegetation on the ground rather than bare soil or stones to settle on (Speight 2017).</p>Published as part of <i>El-Hawagry, Magdi S. & Gilbert, Francis, 2019, Catalogue of the Syrphidae of Egypt (Diptera), pp. 201-248 in Zootaxa 4577 (2)</i> on pages 216-217, DOI: 10.11646/zootaxa.4577.2.1, <a href="http://zenodo.org/record/2629643">http://zenodo.org/record/2629643</a>
Physicians should build their own machine-learning models
Get PDFYosra Mekki suggests that doctors should have the ability to develop their own machine-learning models. She proposes an approach with the "spotlight" on physicians, to create user-friendly frameworks that allow doctors to develop customized models without requiring extensive previous knowledge of machine learning.The author declares no competing interests.Scopu
Fail-safe source-driven fission and fusion-fission hybrid reactor configurations
Get PDFA source-driven nuclear reactor configuration with a unity infinite medium multiplication factor fission core (1k), is investigated for both fission and fusion-fission hybrid systems. Suchaconfiguration is thought to offer adesirable fail-safe reactor alternative in that the loss of the fission or the fusion neutron sourceswould automatically lead to a shut-down of the system into a stable subcritical statewith an effective multiplication factor of less than unity (1effk). This is sosincethe fission core cannot sustain a chain reactionwithout the presence of the neutron source. A circulating liquid molten salt using the Th-233Ufuel cycle,where the fission products are continuously extracted,further contributes to the fail-safe characteristic by avoiding the cooling neededfor the decay heat or afterheat after reactor shut-down. Through the extraction of the 233Parelatively long-lived12( 27 )T daysprecursorisotope,and allowing it sufficient time to decay intoits 233Udaughter, breeding in either thermal orfast neutron spectrais a distinct possibility.The presence of trace amounts of 232Uand thestrong gamma-emitting 208Tldaughter isotope offers a desirable non-proliferation characteristicfor the cycle.As a proof of principle, a simplifiedanalytical one-group neutronics analysis isfirstattemptedfor the pure fission core system. This is then supplemented withnumerical one-group criticality calculationsusing an iterative finite-difference methodology. Further, amore detailed continuous energyMonte Carlo neutronics analysis of the fission core reactor driven by a 233Ufissionneutron source, Deuterium-Tritium(DT) and Deuterium-Deuterium (DD) fusion neutron sourceswas conducted usingthe MCNP5computer code.The first system studiedwas a spherical reactor core with a unity infinite medium multiplication factor (1k)and surrounded by a reflector. A 232Th and 233U FLiBe molten salt wasused as the fuel in the core. The reactor is made criticalwith the addition of a thin region of FLiBe salt with a spike of fissile material (233U). With a kin the core and total system effkof unity, the flux profile for the system becomes flat, resulting in uniform fuel burnup andpower profile. Such a configuration was found to have a conversion ratio of 1.4 in the core. However, 233U production in the core would not be able to replace the 233U consumed in the fissile source
iiiregionwithout exceeding a 3-5 percent concentration. This maybe possibly achievedusing other stockpiled fissile materials such as 235Uor Pu239at higher enrichment levels.Alternatively, the fissile source region can be replaced by a fusion neutron source such as from DT or DD fusion. The systemstudiedconsisted of a cylindrical core surroundedby a fusion source. It is envisioned that the source could be provided by several cylindrical electrodynamic inertial fusion generators. A small 318 MWthsystem can be driven by a 22.3 MWDT source or a 9 MW DD source. A DT system would be able to achieve fissile breeding at the expenseof requiring an outside source of tritium. Alternatively, a DD system can use a sodium-based moltensalt and breed 233U witha doubling time of 9.2 years.The results of the investigationsuggestthat source-driven systemsassociated with a molten-saltcan be contemplatedwith substantialfail-safe benefits. Running a subcritical reactor eliminates the need for excessive reactivity control systems and providessafety in a loss of power transient situation. Furthermore, utilizing a fissile neutron source yieldsbeneficial power and flux profiles. Lastly, such systems can breed fissile material and support afuture alternative Th-233Uthorium fuel cycle.Item withdrawn by Mark Zulauf ([email protected]) on 2013-07-08T15:13:55Z
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