96,561 research outputs found
δ Orionis: Further temporal variability and evidence for small-scale structure in the interstellar medium
No full textWe report here the detection of both spatial and temporal variations in interstellar absorption in the line of sight to δ Orionis. First, we present new high-resolution (R≈110 000) observations of the interstellar D lines of Na i towards both δ Ori A and C. Comparison of these spectra highlights variations in absorption between the two stars, indicative of small-scale spatial structure in the interstellar medium in this direction over distances of less than ≈15 000 au (the projected separation of the two stars). Components with the largest Na i column densities and lowest velocity dispersions are, in general, found to be subject to the greatest differences; in fact the narrowest component detected is only observed in one of the sightlines. This effect has also been reported by Meyer & Blades. Secondly, we present new ultra-high-resolution (R≈900 000) Na i D1 observations and high-resolution (R≈110 000) Ca ii H & K observations of δ Ori A which, through ultra-high-resolution work conducted between 1994 and 2000, has been shown to exhibit a time-variable interstellar Na i absorption component. These new observations, while revealing the further reduction in intensity of the time-variable Na i absorption, indicate constant Ca ii absorption over the same period. This results in a dramatic reduction in the Na°/Ca+ abundance ratio, perhaps indicating the line of sight to be gradually probing a less-dense outer region of an absorbing filament
Josephiella Matsunaga & Howarth & Kumashiro 2019, n. sp.
No full text<i>Josephiella</i> n. sp. A (apparently undescribed) <p> <b>NEW STATE RECORD</b></p> <p> An agaonid wasp new to science was discovered causing galls on the stems of <i>Ficus microcarpa</i>. Terminal stems of affected trees appeared unhealthy with a sparse foliar canopy. Initial observers of this damage were under the assumption that the same species which causes leaf galling on <i>F. microcarpa</i> (<i>Josephiella microcarpae</i>) was also causing the galling on stems of the same plant. However, closer examination of the stem-galling wasps showed that while both the leaf-galler and the stem-galler are morphologically similar in many ways, this in fact may be a different species. Both leaf and stem-gallers can be found on the same plant. Jean-Yves Rasplus, co-author of the leaf-galling <i>J. microcarpae</i>, agreed that this could be an undescribed species and is currently working on its species description.</p> <p> Subsequent to the initial discovery of this stem-galler on Oahu in 2012, infested <i>F. microcarpa</i> were quickly noted on Hawaii and Maui. In May, 2016, galled <i>F. microcarpa</i> stems with exit holes were collected from Molokai and in July, 2017, from Kauai. However, material from these islands were too old and no adults could be recovered. Therefore, we do not list the collection data below, and in the list of new species we noted a question mark next to these islands until the adults are confirmed. <i>Josephiella</i> n. sp. A, along with <i>Josephiella microcarpae</i>, lobate lac scale (<i>Paratarchardina pseudolobata</i>), and other ficus-feeding species has contributed to the weakening of large banyan trees on Oahu.</p> <p> <b>Collection records: OAHU</b>, Manoa, 13.VII.2012, ex. <i>Ficus microcarpa</i> stems, coll. D. Hulbert, det. J.-Y. Rasplus, 6.X.2012.</p> <p> <b>HAWAII</b>, Hilo, 30.VII.2012, ex. <i>F. microcarpa</i> stems, coll. C. Hirayama, L. Larish & S. Chun, det. B. Kumashiro, VIII.2012.</p> <p> <b>MAUI</b>, Wailuku, 6.VIII.2012, ex. <i>F. microcarpa</i> stems, coll. M. Fukada, VIII.2012. Vouchers at HDOA.</p>Published as part of <i>Matsunaga, Janis N., Howarth, Francis G. & Kumashiro, Bernarr R., 2019, New State Records and Additions to the Alien Terrestrial Arthropod Fauna in the Hawaiian Islands, pp. 1-71 in Proceedings of the Hawaiian Entomological Society 51 (1)</i> on pages 11-12, DOI: <a href="http://zenodo.org/record/10832895">10.5281/zenodo.10832895</a>
A conservation roadmap for the subterranean biome
No full text6 páginas.- 1 figuras.- 17 referencias.- Wynne JJ, Howarth FG, Mammola S, et al. A conservation roadmap for the
subterranean biome. Conservation Letters. 2021; e12834. https://doi.org/10.1111/conl.12834The 15th UN Convention on Biological Diversity (CBD) (COP15) will be held in Kunming, China in October 2021. Historically, CBDs and other multilateral treaties have either alluded to or entirely overlooked the subterranean biome. A multilateral effort to robustly examine, monitor, and incorporate the subterranean biome into future conservation targets will enable the CBD to further improve the ecological effectiveness of protected areas by including groundwater resources, subterranean ecosystem services, and the profoundly endemic subsurface biodiversity. To this end, we proffer a conservation roadmap that embodies five conceptual areas: (1) science gaps and data management needs; (2) anthropogenic stressors; (3) socioeconomic analysis and conflict resolution; (4) environmental education; and (5) national policies and multilateral agreements.Peer reviewe
Athamanthia balucha subsp. balucha Howarth & Povolny 1976
No full textAthamanthia balucha balucha (Howarth & Povolny, 1976) (Plate 1, figs. 1–4; plate 2, fig. 2) Lycaena athamantis balucha — Howarth & Povolny 1976: 150. Lycaena phoenicurus balucha Howarth & Povolny, 1976 — Nekrutenko 1984: 47. Athamanthia balucha (Howarth & Povolny, 1976) — Bozano & Weidenhoffer 2001: 41. Type locality. Baluchistan, Old Urak, 27.VI. [19]28 [Pakistan, Balochistan Prov., 10 km NEE Quetta, Urak valley]. Material examined. Holotype ♂, Baluchistan, Old Urak, 27.VI.1928 (photo examined); paratypes: 1 ♀, same locality as in the holotype, 10.VI.1928 (photo examined); 1 ♂, Baluchistan: Urak, 26.V.1929 (photo and genitalia drawing from Nekrutenko (1984) examined), all W.H. Evans leg. (BMNH). Diagnosis. Orange submarginal band of wings upperside strongly reduced in both sexes, only 2–3 spots developed near tornal lobe (band usually well developed in A. phoenicura); thin silvery line extends from tornus midway along to outer margin (line poorly developed near tornal lobe in A. phoenicura); inner black strokes of submarginal orange band of wings underside reduced on both wings (well developed in A. phoenicura); valva widened, with rounded apex and developed inner fold (valva narrowed with indented apex and smaller inner fold in A. phoenicura); aedeagus strongly curved, crescent (aedeagus slightly curved in A. phoenicura). PLATE 1. Athamanthia spp., imagoes: 1— A. balucha balucha (Howarth & Povolny, 1976), holotype, ♂, Baluchistan, Old Urak, 27.VI.1928 (BMNH), photo from (Bozano & Weidenhoffer 2001), upperside; 2— Id., underside; 3— A. b. balucha, paratype, ♀, same locality as in the holotype, 10.VI.1928 (BMNH), photo from (Bozano & Weidenhoffer 2001), upperside; 4— Id., underside; 5— A. b. povolnyi (Howarth & Povolony, 1976), comb. nov., ♂, Central Afghanistan, Province Bamyan, Bamyan district, 4 km SE Sabzak vill., 34°51'48" N, 67°41'13" E, 2700 m, 09.VII.2013, I.G. Pljushtch leg. (SIZK), upperside; 6— Id., underside; 7— A. b. povolnyi (Howarth & Povolony, 1976), comb. nov., ♀, Central Afghanistan, Province Bamyan, Bamyan district, 4 km SE Sabzak vill., 34°51'48" N, 67°41'13" E, 2700 m, 09.VII.2013, I.G. Pljushtch leg., (SIZK), upperside; 8— Id., underside; 9— A. b. athamantides (Eckweiler & ten Hagen, 2001), comb. nov., ♂, South Eastern Iran, Kerman Province, 20 km SE Makhan, 2450 m, 19.VI.2014, I.G. Pljushtch leg., gen. prep. AK0068 (AKM), upperside; 10— Id., underside; 11— A. b. povolnyi (Howarth & Povolony, 1976), comb. nov., holotype, ♂, East Afghanistan, Province Kabul, Sarobi, 12.IV. [19]65, leg. Povolny (MMB), upperside; 12— Id., underside; 13— A. b. povolnyi (Howarth & Povolony, 1976), comb. nov., labels of the holotype; 14— A. phoenicura (Lederer, 1871), ♂, Turkmenistan, W Kopet Dagh Mts., Aydere gorge, 13.VI.1985, A.L. Devyatkin leg. (AKM), upperside; 15— Id., underside; 16— A. phoenicura (Lederer, 1871), ♂, Turkmenistan, W Kopet Dagh Mts., Aydere gorge, 13.VI.1985, A.L. Devyatkin leg. (AKM), upperside; 17— Id., underside. PLATE 2. Athamanthia spp., male genitalia (genital capsule in ventral view, valvae in lateral view from inside, aedeagus in lateral view): 1— A. phoenicura (Lederer, 1871), Turkmenistan, W Kopet Dagh Mts., Aydere gorge, 13.VI.1985, A.L. Devyatkin leg., gen. prep. AK0064 (AKM); 2— A. balucha balucha (Howarth & Povolony, 1976), paratype, Baluchistan: Urak, 26.V.1929, original illustration from Nekrutenko (1984); 3— A. balucha povolnyi (Howarth and Povolony, 1976), comb. nov., Central Afghanistan, Province Bamyan, Bamyan district, 0.5 km SE Sabzak vill., 34°52'41" N, 67°39'14" E, 2790 m, 08– 09.VII.2013, Yu. Ye. Skrylnik leg., gen. prep. AK0067 (AKM); 4— A. balucha athamantides (Eckweiler & ten Hagen, 2001), comb. nov., South Eastern Iran, Kerman Province, 20 km SE Makhan, 2450 m, 19.VI.2014, I.G. Pljushtch leg., gen. prep. AK0068 (AKM). Letters indicate on diagnostic characters (see Diagnosis part): a—shape of apex of valva; b—size of inner fold of valva; c—shape of aedeagus.Published as part of Krupitsky, Anatoly V., Pljushtch, Igor G. & Skrylnik, Yuriy Ye., 2017, Systematic position of two Athamanthia Zhdanko, 1983 (Lepidoptera, Lycaenidae) taxa from the Iranian Plateau, pp. 575-581 in Zootaxa 4232 (4) on pages 576-578, DOI: 10.11646/zootaxa.4232.4.7, http://zenodo.org/record/31328
A second endemic land mammal for the Hawaiian Islands: a new genus and species of fossil bat (Chiroptera: Vespertilionidae)
No full textZiegler, Alan C., Howarth, Francis G., Simmons, Nancy B. (2016): A second endemic land mammal for the Hawaiian Islands: a new genus and species of fossil bat (Chiroptera: Vespertilionidae). American Museum Novitates 2016 (3854): 1-52, DOI: 10.1206/3854.1, URL: http://www.bioone.org/doi/10.1206/3854.
Use of the 13C-sucrose breath test to assess small bowel integrity in methotrexate-induced mucositis following zinc supplementation in metallothionein-knockout and wild-type mice
No full textOral presentation. Published in a Special Issue: Abstracts of the Australia & New Zealand Medical & Surgical Gastrointestinal Week 2009, 21-24 October 2009, Sydney Convention & Exhibition Centre, Sydney, NSW, AustraliaC. D. Tran, S. Sundar, G. S. Howarth and R. N. Butle
Atrichopogon levis
No full text<i>Atrichopogon levis</i> (Coquillett) New island record <p> <b>Collection records: OAHU</b>, Honolulu, Moanalua Stream, 21°21’N, 157°52.7’W, sweeping stream margin, coll. F.G. Howarth, 9.I.2009, 2 males, 3 females; same data except 25.I.2009, 3 males, det. F.G. Howarth, 2009. Vouchers at BPBM & HDOA.</p>Published as part of <i>Matsunaga, Janis N., Howarth, Francis G. & Kumashiro, Bernarr R., 2019, New State Records and Additions to the Alien Terrestrial Arthropod Fauna in the Hawaiian Islands, pp. 1-71 in Proceedings of the Hawaiian Entomological Society 51 (1)</i> on page 6, DOI: <a href="http://zenodo.org/record/10832895">10.5281/zenodo.10832895</a>
Theory and practice in critical thinking A level and the evacuation of knowledge thesis
No full textThe concept of critical thinking has been influential in curriculum policy and practice across sectors of UK education and has been identified as a key consideration in recent consultations about A level reform. The purpose of this study is to describe the meanings attributed to critical thinking in expert accounts and to compare these with policy maker and participant meanings in the context of A level Critical Thinking. A distinctive feature is the attention given to underlying epistemological and ontological assumptions of these accounts. The prevailing concept of critical thinking is of a universally applicable set of skills and dispositions for assessing reasoning and evidence, which derives from the informal logic movement and rests on a fallibilist epistemology. This contrasts with discipline specific concepts. In social realist theory critical thinking has been associated with ‘soft genericism’ and implicated in an ‘evacuation of knowledge’. A critique and extension of this theory is proposed which differentiates between multiple forms and functions of critical thinking in the curriculum. Evidence on student views was gathered in a mixed methods case study, supplemented by a teacher response activity. Students attributed high value to critical thinking and were confident in their ability to apply skills to academic and life situations; whilst they felt that these skills were not taught in other subjects. In apparent contradiction, teachers suggested correspondence between the skills expected for high performance across subjects and those in A level Critical Thinking. Additionally, they emphasized the importance of subject specific contextualising to depth of critical evaluation. It was concluded that knowledge and critical thinking are complementary rather than conflicting forces in education and that a differently conceived critical thinking based on social constructionist epistemology is compatible with and essential to the knowledge curriculum envisaged by social realists
Apedilum elachistus Townes 1945
No full textApedilum elachistus Townes NEW STATE RECORD Wolff (2002) reported collecting pupae of an unidentified species of Apedilum during a survey of the invertebrates living in streams on Oahu. The adults identified here most likely represent the same species. A. elachistus is widespread in North America. Larvae are blood worms and live in eutrophic sediments in streams and shallow water bodies. When abundant, the swarming adults can become a nuisance. Collection records: OAHU, Honolulu, Moanalua, 21°20.9N; 157°53.7W, 11.XI.2008, ex. sweeping stream margin, coll. F.G. Howarth; Same collection data except collected 29.IV.2013. Det. F.G. Howarth, conf. P. Cranston, 2013. Vouchers at BPBM and HDOA.Published as part of Matsunaga, Janis N., Howarth, Francis G. & Kumashiro, Bernarr R., 2019, New State Records and Additions to the Alien Terrestrial Arthropod Fauna in the Hawaiian Islands, pp. 1-71 in Proceedings of the Hawaiian Entomological Society 51 (1) on page
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