1,039 research outputs found
Ixodes cornuatus Roberts 1960
No full text56. Ixodes cornuatus Roberts, 1960. An Australasian species, all of whose parasitic stages have been found on Carnivora: Canidae, and Rodentia: Muridae; adults alone have been collected from Carnivora: Felidae, Diprotodontia: Phascolarctidae and Vombatidae, and Casuariiformes: Casuariidae; immature stages have been recovered from Diprotodontia: Macropodidae, Phalangeridae and Potoroidae, and Passeriformes: Acanthizidae, Cracticidae and Pachycephalidae, and unknown stages have been found on Perissodactyla: Equidae (Guglielmone & Robbins 2018, Barker & Barker 2020). Ixodes cornuatus is a sporadic parasite of humans. M: Roberts (1960) F: Roberts (1960) N: undescribed L: Kemp (1980) Redescriptions M: Roberts (1970), Jackson et al. (2002), Barker and Walker (2014), Barker et al. (2014) F: Roberts (1970), Jackson et al. (2002), Barker and Walker (2014), Barker et al. (2014), Kwak (2017) L: Jackson et al. (2002) Note: Camicas et al. (1998) and Kolonin (2009) state that the larva of Ixodes cornuatus is undescribed; the latter author also doubts the validity of Ixodes cornuatus, perhaps following Roberts (1970), who stated that Ixodes cornuatus may be a subspecies of Ixodes holocyclus.Published as part of Guglielmone, Alberto A., Petney, Trevor N. & Robbins, Richard G., 2020, Ixodidae (Acari: Ixodoidea): descriptions and redescriptions of all known species from 1758 to December 31, 2019, pp. 1-322 in Zootaxa 4871 (1) on page 22, DOI: 10.11646/zootaxa.4871.1.1, http://zenodo.org/record/442334
Cultural and neuropsychological predictors of medication adherence
No full textHIV infection among the Hispanic community is disproportionate to the overall population of the United States. Hispanics account for 13% of the U.S. population, yet they account for 20% of reported AIDS cases in the U.S. Numerous studies have identified the detrimental neurocognitive sequela and functional impact of HIV infection, and research has shown that ethnic minorities are less likely to adhere to medical protocols. Highly active antiretroviral therapy (HAART) for HIV/AIDS has helped to inhibit the detrimental neurocognitive effects of HIV\u27s involvement in the central nervous system. However, in order to benefit from HAART, individuals must be near perfect in their compliance. Studies have shown that individuals with neuropsychological (NP) impairment are less likely to adhere to their medication regimens. However, these studies have examined mostly African American populations, with no emphasis on cultural differences. With disproportionate rates of HIV infection among Hispanics, the high rate of new infections among Hispanics, and the risk of not adhering to medical protocols, this group is at particularly high risk for neurocognitive impairment and impaired functioning in everyday activities. The present study examined the role NP and cultural factors play in HAART adherence in a sample of HIV+ Hispanic and non-Hispanic white adults. Methods. Forty-two HIV+ participants (28 Hispanic and 14 non-Hispanic white) were recruited. All participants underwent neuromedical and psychiatric screening, as well as s comprehensive NP evaluations. In addition, participants were administered a 30-day self-report questionnaire of HAART adherence. Hispanic participants also completed an acculturation measure. Results. Mean adherence rate for Hispanics was significantly lower than 95% and the non-Hispanic white mean adherence rate. Global NP functioning was positively correlated with adherence rate among all participants, as were the NP domains of memory and motor functioning. No association between acculturation and adherence was found. Conclusion. The current indicated that HIV+ Hispanics have poorer adherence compared to non-Hispanic whites and significantly lower adherence than the recommended 95%. Additionally, NP functioning is also related to adherence among HIV+ Hispanics and non-Hispanic whites
Configurations of points and the symplectic Berry-Robbins problem
No full textWe present a new problem on configurations of points, which is a new version of a similar problem by Atiyah and Sutcliffe, except it is related to the Lie group Sp(n), instead of the Lie group U(n). Denote by h a Cartan algebra of Sp(n), and Δ the union of the zero sets of the roots of Sp(n) tensored with R3, each being a map from h⊗R3→R3. We wish to construct a map (h⊗R3)∖Δ→Sp(n)/Tn which is equivariant under the action of the Weyl group Wn of Sp(n) (the symplectic Berry-Robbins problem). Here, the target space is the flag manifold of Sp(n), and Tn is the diagonal n-torus. The existence of such a map was proved by Atiyah and Bielawski in a more general context. We present an explicit smooth candidate for such an equivariant map, which would be a genuine map provided a certain linear independence conjecture holds. We prove the linear independence conjecture for n=2.The author would like to thank Sir Michael Atiyah for kindly replying to his emails, and would
like to thank the anonymous referees for all their suggestions, which ended up making the article
much more readable
Configurations of points and the symplectic Berry-Robbins problem
No full textWe present a new problem on configurations of points, which is a new version of a similar problem by Atiyah and Sutcliffe, except it is related to the Lie group Sp(n), instead of the Lie group U(n). Denote by h a Cartan algebra of Sp(n), and Δ the union of the zero sets of the roots of Sp(n) tensored with R3, each being a map from h⊗R3→R3. We wish to construct a map (h⊗R3)∖Δ→Sp(n)/Tn which is equivariant under the action of the Weyl group Wn of Sp(n) (the symplectic Berry-Robbins problem). Here, the target space is the flag manifold of Sp(n), and Tn is the diagonal n-torus. The existence of such a map was proved by Atiyah and Bielawski in a more general context. We present an explicit smooth candidate for such an equivariant map, which would be a genuine map provided a certain linear independence conjecture holds. We prove the linear independence conjecture for n=2.The author would like to thank Sir Michael Atiyah for kindly replying to his emails, and would
like to thank the anonymous referees for all their suggestions, which ended up making the article
much more readable
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Regional variation in successional trajectories and rates of vegetation change on glacier forelands in south-central Norway
No full textIntergroup conflict and dehumanization
No full textThis chapter of the handbook introduces dehumanization as another dark side of humanity. Humanness is a central concept in moral psychology, and whereas people normally treat other humans with moral consideration, they may turn to dehumanize others as a result of moral disengagement and moral exclusion. The author reviews recent psychological accounts of dehumanization that are grounded in empirical research and highlights the diverse forms it takes: dehumanization varies from subtle to blatant, from interpersonal to intergroup, and from simple to complex. In these theoretical accounts, dehumanizing a person or group means ascribing less of certain human attributes to the target – both attributes that distinguish humans from other animals and attributes that distinguish humans from inanimate agents. Within this general framework, the author reviews the empirical literature on how dehumanization may function to prime, facilitate, and justify harm during intergroup conflict. He also considers a number of critiques and debates over these ideas and findings that have recently surfaced
Ixodes eudyptidis Maskell 1885
No full text79. Ixodes eudyptidis Maskell, 1885. An Australasian species, all of whose stages are known only to parasitize Sphenisciformes: Spheniscidae. M: Dumbleton (1961) F: Maskell (1885) N: Neumann (1899) L: Roberts (1969); see note below Redescriptions M: Heath and Palma (2017) F: Dumbleton (1953), Roberts (1960), Heath and Palma (2017) N: Nuttall and Warburton (1911), under the name Ixodes neumanni, a synonym of Ixodes eudyptidis, Roberts (1960), Heath and Palma (2017) L: Heath and Palma (2017); see note below Note: Roberts (1960) and Sénevet and Ripert (1967a) redescribed the larva of Ixodes eudyptidis using morphological characters given in Dumbleton (1953), but the latter author in fact described the larva of Ixodes laridis, as explained in Heath and Palma (2017). Cooley and Kohls (1945) erroneously treat Ixodes eudyptidis as a synonym of Ixodes uriae. See also Ixodes percavatus for its confusion with Ixodes eudyptidis.Published as part of Guglielmone, Alberto A., Petney, Trevor N. & Robbins, Richard G., 2020, Ixodidae (Acari: Ixodoidea): descriptions and redescriptions of all known species from 1758 to December 31, 2019, pp. 1-322 in Zootaxa 4871 (1) on page 28, DOI: 10.11646/zootaxa.4871.1.1, http://zenodo.org/record/442334
Introduction to Arithmetic. Trans. into English by Martin Luther D'Ooge. With studies in Greek arithmetic by Frank Egleston Robbins and Louis Charles Karpinsky
No full textpp.237/238:
"... the sum of nothing added to nothing, which makes nothing."
(D'Ooge, M. L., Robbins, F. E., & Karpinsky, L. C. (1926). Nicomachus of Gerasa Introduction to Arithmetic with Studies in Greek Arithmetic. Trans, into English by Martin Luther D'Ooge, with studies in Greek arithmetic by Robbins and Karpinsky. New York: Macmillan.) see also: HathiTrust
In other words, it is: 0 +0 +0 + ... = +0.
However, even if not completely incorrect, this is not correct. Peano axioms of the multiplication by zero are not correct. Much more, it is
1+1+1+ ... = +n
Multiplying by zero, it is
(+1+1+1+...)*0 = +n*0 = n_0
or
0+0+0+... = n_0
see also: Barukčić, I. (2020). Zero and infinity: Mathematics without frontiers. Hamburg: BoD–Books on Demand. Page: 90-91, Theorem 3.25.
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title={Introduction to Arithmetic. Trans. into English by Martin Luther D'Ooge. With studies in
Greek arithmetic by Frank Egleston Robbins and Louis CharlesKarpinsky},
author={Nicomachus, of Gerasa}
publisher = {The Macmillan company},
place={New York},
year={1926}
, note={\href{https://babel.hathitrust.org/cgi/pt?id=mdp.39015005675411}{HathiTrust, 913
S. University Ave.
Ann Arbor, MI. 48109-1190}}
}\href{https://babel.hathitrust.org/cgi/pt?id=mdp.39015005675411}{HathiTrust, 913
S. University Ave. Ann Arbor, MI. 48109-1190
Modification of Loop 1 Affects the Nucleotide Binding Properties of Myo1c, the Adaptation Motor in the Inner Ear
No full textMyo1c is one of eight members of the mammalian myosin I family of actin-associated molecular motors. In stereocilia of the hair cells in the inner ear, Myo1c presumably serves as the adaptation motor, which regulates the opening and closing of transduction channels. Although there is conservation of sequence and structure among all myosins in the N-terminal motor domain, which contains the nucleotide- and actin-binding sites, some differences include the length and composition of surface loops, including loop 1, which lies near the nucleotide-binding domain. To investigate the role of loop 1, we expressed in insect cells mutants of a truncated form of Myo1c, Myo1c1IQ, as well as chimeras of Myo1c1IQ with the analogous loop from other myosins. We found that replacement of the charged residues in loop 1 with alanines or the whole loop with a series of alanines did not alter the ATPase activity, transient kinetics properties, or Ca2+ sensitivity of Myo1c1IQ. Substitution of loop 1 with that of the corresponding region from tonic smooth muscle myosin II (Myo1c1IQ-tonic) or replacement with a single glycine (Myo1c1IQ-G) accelerated the release of ADP from A.M 2?3-fold in Ca2+, whereas substitution with loop 1 from phasic muscle myosin II (Myo1c1IQ-phasic) accelerated the release of ADP 35-fold. Motility assays with chimeras containing a single ?-helix, or SAH, domain showed that Myo1cSAH-tonic translocated actin in vitro twice as fast as Myo1cSAH-WT and 3-fold faster than Myo1cSAH-G. The studies show that changes induced in Myo1c via modification of loop 1 showed no resemblance to the behavior of the loop donor myosins or to the changes previously observed with similar Myo1b chimeras
FTIR AND DFT STUDIES OF NOVEL GERMANIUM-CARBON AND MIXED GERMANIUM-SILICON-CARBON CLUSTERS
No full textD.L. Robbins, C.M.L. Rittby, and W.R.M. Graham J. Chem. Phys. 114, 3570 (2001).Author Institution: Department of Physics and Astronomy, TCUThe vibrational fundamentals and structures of novel germanium-carbon and mixed germanium-silicon-carbon clusters, formed by laser ablation and trapped in solid Ar, are currently under Vibrational fundamentals and ground state geometries are characterized by comparison of Fourier transform infrared measurements of vibrational frequencies and isotopic shifts for the matrix isolated clusters with the predictions of density functional theory (DFT). Linear has been detected, the first species to be observed optically, and its fundamental identified at . The results are in excellent agreement with DFT predictions. Additional results and assignments for clusters will be reported
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