197,625 research outputs found
Oligosita gilvus Yousuf & Shafee
No full text6. Oligosita gilvus Yousuf & Shafee (Figs 19, 20) Oligosita gilvus Yousuf & Shafee, 1984: 17 –18, Holotype, ♀, India, Uttar Pradesh, Bulandshahr (ZDAMU, examined). Oligosita gilvus Yousuf & Shafee: Yousuf & Shafee, 1988: 145, 152, ♀, ♂, key, figures, Aligarh record. Hayat, 2008: 10, 13, ♀, figures, key, taxonomy. Begum & Anis, 2013: 45, list. Begum & Anis, 2014: 9, checklist. Redescription. Female. Length, 0.68 mm. Body pale yellow; eye dark. Antenna yellow. Mandible with tip golden yellow. Mesosoma with pronotum brown; mesoscutum, scutellum, metanotum pale yellow. Fore wing hyaline, with slight infuscation beneath stigmal and parastigmal veins. Legs with hind femora brown; last tarsal segment brown. Gaster yellow. Head with transversely elongated reticulation on occipital area; eye height 1.81 × as long as malar space (29: 16). Mandible tridentate. Antenna (Fig. 19) with scape 2.90 × as long as broad (32: 11); funicle 1.3−1.5 × as long as broad; clava about 2.6 × as long as broad (34: 13); apical segment of clava with rod-like structure. Mesosoma. Mesoscutum with scale-like reticulation; mid lobe of mesoscutum 1.1 × as broad as long (44: 40); scutellum 1.9 × as broad as long (40: 21); propodeum 3 × as long as metanotum (15: 5); mesophragma extending up to TII of gaster. Fore wing (Fig. 20) 3.24 × as long as broad (240: 74); marginal fringe short, 0.60 × wing width (45: 74); hind wing 20 × as long as broad (180: 9); marginal fringe 5.22 × as long as wing width (47: 9). Metasoma. Gaster 1.6 × as long as broad (144: 90); ovipositor 1.64 × as long as hind tibia (128: 78) and 1.88 × as long as mid tibia (128: 68), originating from TII of gaster. Male. Unknown. Type material examined. Holotype, ♀ (on 2 slides), labelled “ 89 A Oligosita gilvus M. Yousuf Bulandshahr 10.x. 1983 ”, and a small ticket with ‘Holotype’ written in red ink (ZDAMU, HYM. CH. 256). Additional material examined. INDIA: ASSAM: Kamrup, Boodapahar, 1 ♀, 30.i. 2008, coll. F. R. Khan (ZDAMU). Distribution. India: Assam; Uttar Pradesh. Comments. The original description of this species was based on a single female. The holotype is on two slides, one slide with one antenna, one fore wing and one hind wing under a large coverslip, and the rest of the body on another slide under a small coverslip. See key to species for characters differentiating it from other species.Published as part of Begum, Salma, Anis, Shoeba Binte & Khan, Mohd Talib, 2015, A revision of the Indian species of Oligosita Walker (Hymenoptera: Trichogrammatidae), pp. 401-424 in Zootaxa 3973 (3) on page 411, DOI: 10.11646/zootaxa.3973.3.1, http://zenodo.org/record/24012
Oligosita debaiensis Yousuf & Shafee
No full text4. Oligosita debaiensis Yousuf & Shafee (Figs 14, 15) Oligosita debaiensis Yousuf & Shafee, 1988: 152 –153, ♀, India, Uttar Pradesh, Debai (ZDAMU, examined). Oligosita debaiensis Yousuf & Shafee: Hayat, 2008: 9 –10, ♀, figures, key, taxonomy. Begum & Anis, 2013: 45, ♀, list. Begum & Anis, 2014: 9, checklist. Fatma et al., 2014: 116, ♀, Uttarakhand and Uttar Pradesh records. Redescription. Female. Body length, 0.63 mm. Body yellowish brown; eye and ocelli dark. Antenna pale brown; clava brown. Mandible with tip dark reddish brown. Mesosoma with pronotum brown; mid lobe of mesoscutum and scutellum pale brown; axilla pale yellow; mid lobe of metanotum pale brown, side lobes brown. Fore wing hyaline with infuscation beneath stigmal vein and a slight infuscation beneath parastigmal vein. Legs with hind coxa and hind femur brown. Gaster with posterior margin of TIV −TVI pale brown. Head, in frontal view, broader than high (90: 72); frontovertex with transversely elongated striation, but from sides of eye down to near margin of eye with longitudinally elongate ridge-like reticulation; ocelli arranged in an acute triangle. Antenna (Fig. 14) with scape 3.12 × as long as broad (25: 8); pedicel 1.5−1.7 × as long as broad; funicle segment slightly longer than broad (10: 8); clava about 1.8−2.4 × as long as broad; apical segment of clava with rod-like projection. Mesosoma. Pronotal collar with 2 pairs of setae; mid lobe of mesoscutum about 1.75 × as broad as long (49: 28); scutellum about 1.95 × as broad as long (41: 21); mesophragma extending up to TIII; propodeum longer than metanotum (19: 4). Fore wing (Fig. 15) about 3.3 × as long as broad (176: 53); marginal fringe 1.2 × as long as wing width (53: 44); hind wing 20.5 × as long as broad (164: 8); marginal fringe 5.62 × as long as wing width (45: 8). Metasoma. 1.58 × as long as mesosoma (124: 78); ovipositor 1.70−1.77 × as long as hind tibia and 1.6−1.9 × as long as mid tibia, originating from level of TI gaster and hidden. Male. Unknown. Type material examined. Holotype, ♀ (on 2 slides), labelled, “ 449 Oligosita debaiensis sp.n. M. Yousuf Aligarh, Debai 28.x. 1985 ” and a ticket with ‘Holotype’ written in red ink (ZDAMU, HYM. CH. 348). Paratypes: 1 ♀ out of 2 ♀ (on slide), labelled, “ 508 Oligosita debaiensis sp.n. M. Yousuf Aligarh, Debai 28.x. 1985 ” and a ticket with ‘Paratype’ written in green ink (ZDAMU, HYM. CH. 348). Additional material examined. INDIA: KERALA: Ernakulam, Vallarpadam, 1 ♀, 11.i. 2012, coll. F. R. Khan. UTTAR PRADESH: Pilibhit, Pakadia Naugonva, 1 ♀, 12.ix. 2006, coll. F. R. Khan. (ZDAMU) Material determined and listed by Begum & Anis (2013) and Fatma et al. (2014) was also examined. Distribution. India: Kerala; Uttarakhand; Uttar Pradesh. Comments. The original description of this species was based on 2 females. The holotype is on two slides, one slide with one antenna, one fore wing and one hind wing under a large coverslip, and the rest of the body (antenna beyond scape detached and badly crushed) on another slide under a small coverslip. The paratype is on a slide with 2 females, bearing the same data as the holotype, with collection number ‘ 508 ’, but which one of these two specimens is the paratype is not indicated. This species appears similar to O. hilaris (Perkins 1910) based on the brief notes and figures given by Viggiani (1981), but can be separated from the latter in having the antennal funicle segment as long as broad or slightly longer than broad, and clava about 2 × as long as broad. In O. hilaris the funicle segment is distinctly longer than broad, and the clava is about 4 × as long as broad.Published as part of Begum, Salma, Anis, Shoeba Binte & Khan, Mohd Talib, 2015, A revision of the Indian species of Oligosita Walker (Hymenoptera: Trichogrammatidae), pp. 401-424 in Zootaxa 3973 (3) on pages 408-410, DOI: 10.11646/zootaxa.3973.3.1, http://zenodo.org/record/24012
Improved centration of the type 1 Boston Keratoprosthesis in donor carrier tissue
No full textYousuf M Khalifa1, Majid Moshirfar21Flaum Eye Institute, University of Rochester, Rochester, NY, USA; 2Moran Eye Center, University of Utah, Salt Lake City, UT, USAAbstract: The type 1 Boston Keratoprosthesis preparation requires a 3-mm central punch and an 8.5 mm or larger punch in the carrier tissue. These punches are ideally concentric, but we have found difficulty in achieving concentric punches when the larger punch is performed first. We present a modification in the preparation procedure to help minimize centration error.Keywords: Boston Keratoprosthesis, centration erro
Conversion of Agro-industrial Wastes into Lipids Suitable for Biodiesel Production
No full textMicroorganisms that can accumulate lipids at more than 20% of their dry mass are defined as oleaginous species. The majority of these lipids are triacylglycerol containing long-chain fatty acids, which are comparable to conventional vegetable oils. The recent, increasing interest towards the oleaginous microorganisms is due to the potential use of microbial triglycerides as feedstock for biodiesel production.
The oleaginous yeasts used in this thesis work appear to be very promising, due to their versatility, as they allow the use of different kinds of residues as nutrients. In particular, Lipomyces starkeyi is so far one of the best used, as it has been proved to store large amounts of lipids.
Lipomyces starkeyi were first grown in the presence of olive oil mill wastewaters (OMW), a medium difficult to process by biological treatments, due to the antimicrobial activities of their phenolic components. We demonstrated that Lipomyces can produce, without external organic supplements, a significant reduction of both the total organic carbon (TOC) and the total phenols content, leading to a significant increase of the germination index. The fatty acid distribution showed a prevalence of oleic acid, demonstrating the potential of L. starkeyi as a source of lipids to be used as a feedstock for the synthesis of II generation biodiesel. The performance of Lipomyces was improved by a preliminary dilution of OMW.
Lipomyces were able to grow also in the presence of wastewaters from cheese factory, leading to a satisfactory growth and to a significant reduction of the TOC levels.
Cellulosic agricultural residues were also evaluated as feedstock for oleaginous yeasts. Lipomyces starkeyi were first grown in the hydrolysate of tomato wastes, containing mainly peel and seeds, at different nitrogen contents. The yeasts showed a favorable growth, with no need of addition of external nutrients.
Hydrolysates of Sorghum and Giant Reed were also studied as nutrients for the Lipomyces starkeyi. The conditions to maximize the lipid yield and the efficiency of the biomass conversion were found in terms of H2SO4 concentration (for the preliminary hydrolysis) and of medium composition (for the yeasts growth). Detoxification of hydrolysate with overlime and activated charcoal was carried out to reduce the concentration of microbial growth inhibitors, improving the growth of the yeasts in the undiluted hydrolysate.
In conclusion, the potential of oleaginous yeasts was demonstrated by the satisfactory microbial growth in the presence of different waste materials, and by the favorable composition of the triglycerides. Further studies are ongoing to optimize the preliminary hydrolysis of lignocellulosic materials and the lipid fraction of the yeasts
Technology and Engineering of Biodiesel Production: a Comparative Study between Microalgae and other Non-Photosynthetic Oleaginous Microbes.
No full textOligosita younusi Yousuf & Shafee
No full textOligosita younusi Yousuf & Shafee (Figs 34–35) Oligosita younusi Yousuf & Shafee, 1988: 155, ♀, India, Uttar Pradesh, Aligarh (ZDAMU, examined). Oligosita younusi Yousuf & Shafee: Hayat, 2008: 8, ♀, figures, key, taxonomy. Fatma et al., 2012: 7, ♀, ♂, Uttarakhand record. Begum & Anis, 2013: 45, ♀, list, records. Begum & Anis, 2014: 9, checklist. Fatma et al., 2014: 117, ♀, Uttarakhand and Assam records. Redescription. Female. Length, 0.52 mm. Body dark brown; frontovertex yellow; mouth margin, malar space and occiput dark brown; eye dark. Antennal scape brown in basal half and pale brown in apical half; pedicel and flagellum brownish. Mandible with tip golden yellowish brown. Mesosoma dark brown with mesoscutum and scutellum yellow to pale yellow. Fore wing with two infuscate patches, one in distal third of marginal vein across disc and the second at parastigma. Legs with coxae, and hind femora dark brown, other femora except apices, and last tarsal segments of tarsi, brown to pale brown; rest of leg parts whitish to pale yellow. Gaster with TII −IV except sides of TIII and TIV, and ventral half yellow to pale yellow. Head with transversely elongated striations on occipital area; eye height 1.8 × as long as malar space (46: 26). Mandible tridentate. Antenna (Fig. 34) with scape 3.62 × as long as broad (29: 8); pedicel 1.9 × as long as broad (17: 9); funicle 1.62 × as long as broad (13: 8); clava about 3 × as long as broad (39: 13); apex of clava with a rod-like structure. Mesosoma. Mesoscutum and scutellum with scale like reticulation; mid lobe of mesoscutum 1.1 × as broad as long (40: 38); scutellum 1.75 × as broad as long (35: 20); mesophragma extending up to TIII of gaster. Fore wing (Fig. 35) 4 × as long as broad (180: 45); marginal fringe 1.2 × as long as wing width (53: 45); hind wing 21 × as long as broad (168: 8); marginal fringe 5.75 × as long as wing width (46: 8). Metasoma. Gaster longer than mesosoma; ovipositor about 1.20−1.3 × of hind tibia and 1.3−1.4 × of mid tibia, originating from TIV. Male. The male recorded by Fatima et al. (2012) probably does not belong to this species, and therefore it is not described. Type material examined. Holotype, ♀ (on 2 slides), labelled, “ 518 Oligosita younusi sp.n. M. Yousuf Aligarh 10.I. 1986 ” and a ticket with ‘Holotype’ written in red ink (ZDAMU, HYM. CH. 352). Additional material examined. INDIA: UTTAR PRADESH: Aligarh, Dept. of Botany, 1 ♀, 13.x. 2010, coll. S. Begum. ORISSA [= Odisha], Tharsuguda, Barela, 1 ♀, 17.xii. 2007, coll. F.R. Khan (ZDAMU). Material determined and listed by Fatma et al. (2012), Begum & Fatima (2013) and Fatma et al. (2014) was also examined. Distribution. India: Assam; Orissa; Uttarakhand; Uttar Pradesh. Comments. The original description of this species was based on 2 females and one male. The female holotype is on two slides, one slide with both antennae (one minus scape) and one fore wing under a large coverslip and the rest of the body (head detached and broken) on the second slide under a small coverslip. Hayat (2008) noted that the specimens labelled as ‘Paratype’ has the collection date ‘ 27.ix. 1985 ’ different from the collection date of the holotype ’ 10.I. 1986 ’, whereas the authors say that the paratypes have the ‘same data as the holotype’. Therefore, Hayat (2008) considered these as non-type specimens. Oligosita younusi appears similar to O. magnifica Dozier (1937) based on the brief notes and the figures given by Viggiani (1981), but can be separated by the presence of two infuscate patches, one each beneath the stigmal and premarginal veins, and the antennal clava is 3 × as long as broad. In O. magnifica the fore wing has one infuscate patch beneath the stigmal vein, and the clava is 3.8 × as long as broad.Published as part of Begum, Salma, Anis, Shoeba Binte & Khan, Mohd Talib, 2015, A revision of the Indian species of Oligosita Walker (Hymenoptera: Trichogrammatidae), pp. 401-424 in Zootaxa 3973 (3) on pages 421-422, DOI: 10.11646/zootaxa.3973.3.1, http://zenodo.org/record/24012
Financial sustainability of biogas technology: Barriers, opportunities, and solutions
No full textBiogas technology, which converts biological waste into energy, is considered as an excellent tool to improve the lives, livelihoods, health, and ecosystem. The demand and prospect of biogas technology as a renewable energy source in terms of market value have not been adequately addressed, although it offers a large revenue opportunity that supports the socioeconomic development in rural areas. For more sustainable development of this technology, policy-makers should reform the existing institutional framework by reorganizing subsidies, motivating and attracting investors with flexible financial conditions, liberalizing the management of gas grids, and involving farmers in local projects. Therefore, it is a great challenge to find a proper mode of marketing policy, business models, and multi-profit options and a sustainable financing mechanism. This paper covers the state-of-the-art enlargements and future consequences of the hastily emerging biogas market, starting with a universal viewpoint and going through special market characteristics of Europe, USA, Africa, and Asia Pacific
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
Epithelial growth over the optic surface of the type 1 Boston Keratoprosthesis: histopathology and implications for biointegration
No full textYousuf M Khalifa, Don Davis, Nick Mamalis, Majid MoshirfarMoran Eye Center, University of Utah, Salt Lake City, UT, USAAbstract: We report the histopathology of epithelial overgrowth in the Boston type I keratoprosthesis. The epithelium shows an inconsistent number of layers and basement membrane and goblet cells are absent. Epithelialization of the keratoprosthesis optic would have multiple advantages, but the limitation of vision makes tolerating the overgrowth difficult.Keywords: keratoprosthesis, cornea, corneal transplant, biocompatibility, biointegration epitheliu
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