1,722,831 research outputs found
Aleuroglandulus striatus Sampson & Drews 1941
No full textAleuroglandulus striatus Sampson & Drews (Figs 28, 88) Aleuroglandulus striatus Sampson & Drews, 1941: 157–159. Syntypes, Mexico. DISTRIBUTION. Neotropical Region: Belize, Costa Rica, Guatemala, Honduras, Mexico. COMMENTS. See key to species, above, for distinguishing characters. The author has only encountered A. striatus in very small numbers, usually widely scattered. Even with dorsal glandular areas inevident, this species exhibits all other generic characters.Published as part of Martin, Jon H., 2005, Whiteflies of Belize (Hemiptera: Aleyrodidae) Part 2 - a review of the subfamily Aleyrodinae Westwood, pp. 1-116 in Zootaxa 1098 (1) on page 15, DOI: 10.11646/zootaxa.1098.1.1, http://zenodo.org/record/505154
Kaieteurodicus, description and discussion of a new genus of neotropical aleurodicine whitefly (Hemiptera, Sternorrhyncha, Aleurodicinae)
No full textMartin, Jon H. (2008): Kaieteurodicus, description and discussion of a new genus of neotropical aleurodicine whitefly (Hemiptera, Sternorrhyncha, Aleurodicinae). Zootaxa 1730: 43-55, DOI: 10.5281/zenodo.18130
Models for protein assembly in the prion diseases
Full text linkThesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1994.Includes bibliographical references.by Jon H. Come.Ph.D
Jon H. Roberts et James Turner, The Sacred and Secular University, introduction de John F. Wilson
No full textHeffer Jean. Jon H. Roberts et James Turner, The Sacred and Secular University, introduction de John F. Wilson. In: Annales. Histoire, Sciences Sociales. 55ᵉ année, N. 6, 2000. pp. 1400-1401
FIGURES 1–2 in The identity of Paraleyrodes perseae (Quaintance) (Sternorrhyncha: Aleyrodidae), a potential pest of fruit trees in the United States and beyond
No full textFIGURES 1–2, Paraleyrodes spp. exBelize. 1, oviposition "nest" with eggs visible inside; 2, adult male, showing characteristic long singlesegment antennal flagellum.Published as part of Martin, Jon H., 2006, The identity of Paraleyrodes perseae (Quaintance) (Sternorrhyncha: Aleyrodidae), a potential pest of fruit trees in the United States and beyond, pp. 35-47 in Zootaxa 1128 on page 37, DOI: 10.5281/zenodo.17184
FIGURE 14 in Aleurodicus talamancensis, a new whitefly species damaging plantation bananas in Costa Rica, with discussion of a montane orchidfeeding population (Sternorrhyncha, Aleyrodidae)
No full textFIGURE 14. Mature banana leaf completely covered by immature stages of Aleurodicus talamancensis.Published as part of Martin, Jon H., 2005, Aleurodicus talamancensis, a new whitefly species damaging plantation bananas in Costa Rica, with discussion of a montane orchidfeeding population (Sternorrhyncha, Aleyrodidae), pp. 1-10 in Zootaxa 843 on page 9, DOI: 10.5281/zenodo.17070
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Correspondence from a UMaine Alumnus
Full text linkTypewritten letter from Jon H. Towle expressing support for the Civil Rights of the members of the Wilde-Stein Club
Replication Data for Electoral Reform and Strategic Coordination
No full textElectoral reform creates new strategic coordination incentives for voters and elites, but endogeneity problems make such effects hard to identify. We address this issue by investigating an extraordinary dataset, from the introduction of proportional representation in Norway in 1919, which allows us to measure vote-shares of parties in the pre-reform single-member districts and in the same geographic units in the post-reform multi-member districts. The electoral reform had an immediate effect on the fragmentation of the party system, due in part to strategic party entry. We find, though, that another main effect of the reform was that many voters switched between existing parties, particularly between the Liberals and Conservatives, as the incentives for these voters to coordinate against Labor were removed by the introduction of PR
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