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CreatorTitleDescriptionSubjectDate
1Inagaki, Ryota T.; Raghuraman, Shrlnlvasan; Chase, Kevin; Steele, Theresa; Zornik, Erilk; Olivera, Baldomero; Yamaguchi, AyakoMolecular characterization of frog vocal neurons using pharmacological constellation.constellation pharmacology; motor programs; parabrachial nucleus; premotor neurons; vocalizations2020
2Kelley, Darcy B.; Elliott, Taffeta M.; Evans, Ben J.; Evans, Ben J.; Hall, Ian C.; Rhodes, Heather J.; Yamaguchi, Ayako; Zornik, ErikProbing forebrain to hindbrain circuit functions in XenopusThe vertebrate hindbrain includes neural circuits that govern essential functions including breathing, blood pressure and heart rate. Hindbrain circuits also participate in generating rhythmic motor patterns for vocalization. In most tetrapods, sound production is powered by expiration and the circu...fictive respiration; vocalization; pattern generation2016
3Yamaguchi, AyakoDevelopment of an acute method to deliver transgenes into the brains of adult Xenopus laevisThe central vocal pathway of the African clawed frog, Xenopus laevis, is a powerful vertebrate model to understand mechanisms underlying central pattern generation. However, fast and efficient methods of introducing exogenous genes into the neurons of adult X. laevis are currently not available. Her...viral vector; vesicular stomatitis virus; Xenopus laevis; transgene; neurons; vocalizations; central pattern generator; electroporation2018
4Lawton, Kristy J.Motor neurons tune premotor activity in a vertebrate central pattern generatorCentral patterns generators (CPGs) are neural circuits that drive rhythmic motor output without sensory feedback. Vertebrate CPGs are generally believed to operate in a top-down manner in which premotor interneurons activate motor neurons that in turn drive muscles. In contrast, the frog (Xenopus la...CPG; feed back; synchrony; vocal; vocalization; Xenopus2017
5Yamaguchi, AyakoCoding rate and duration of vocalizations of the frog , Xenopus laevisVocalizations involve complex rhythmic motor patterns, but the underlying temporal coding mechanisms in the nervous system are poorly understood. Using a recently developed whole-brain preparation from which "fictive" vocalizations are readily elicited in vitro, we investigated the cellular basis of...2012-08-29
6Fleming Aaron M.Computational studies of electronic circular dichroism spectra predict absolute configuration assignments for the guanine oxidation product 5-carboxamido-5-formamido-2-iminohydantoinOxidation of the guanine heterocycle by two electrons can yield the chiral product 5-carboxamido-5-formamido-2-iminohydantoin (2Ih). The 2Ih free base enantiomers were synthesized from 2'-deoxyguanosine oxidized with a Cu(II)/H2O2 oxidant system followed by hydrolysis of the N-glycosidic bond. These...Guanine oxidation; 2-Iminohydantoin; Electronic circular dichroism; Time-dependent density functional theory2014-12-15
7Cieri, RobertNew insight into the evolution of the vertebrate respiratory system and the discovery of unidirectional airflow in iguana lungsThe generally accepted framework for the evolution of a key feature of the avian respiratory system, unidirectional airflow, is that it is an adaptation for efficiency of gas exchange and expanded aerobic capacities, and therefore it has historically been viewed as important to the ability of birds ...2014-11-17
8Capecchi, Mario R.Modeling alveolar soft part sarcomagenesis in the mouse: a role for lactate in the tumor microenvironmentAlveolar soft part sarcoma (ASPS), a deadly soft tissue malignancy with a predilection for adolescents and young adults, associates consistently with t(X;17) translocations that generate the fusion gene ASPSCR1-TFE3. We proved the oncogenic capacity of this fusion gene by driving sarcomagenesis in m...2014-01-01
9Sekercioglu, CaganKeystone species in seed dispersal networks are mainly determined by dietary specializationOne central issue in Ecology ecology has been the definition and identification of keystone species, i.e., species that are relatively more important than others for maintaining the structure of a community. Several keystone species concepts have been proposed, and network theory has been pointed o...2014-01-01
10Voth, Gregory AlanNanostructural organization in acetonitrile/ionic liquid mixtures: molecular dynamics simulations and optical Kerr effect spectroscopyIn this paper, the nanostructural organization and subpicosecond intermolecular dynamics in mixtures of acetonitrile and the ionic liquid (IL) 1-pentyl-3-methylimidazolium bis{(trifluoromethane)sulfonyl}amide ([C5mim][NTf2]) were studied as a function of concentration using molecular dynamics (MD) s...2012-01-01
11Dawson, KyleSubaru FOCAS spectroscopic observations of high-redshift supernovaeWe present spectra of high-redshift supernovae (SNe) that were taken with the Subaru low-resolution optical spectrograph, FOCAS. These SNe were found in SN surveys with Suprime-Cam on Subaru, the CFH12k camera on the Canada-France-Hawaii Telescope, and the Advanced Camera for Surveys on the Hubble S...2010-01-01
12Jorgensen, ErikImproved Mos1-mediated transgenesis in C. elegansThe ability to add or delete genes to the genome of genetic model organisms is essential. Previously, we developed methods based on the Mos1 transposon1 to make targeted transgene insertions (Mos1-mediated Single Copy transgene Insertions, MosSCI2) and targeted deletions (Mos1-mediated deletions, Mo...2012-01-01
13Rogachev, AndreyMagnetic-field dependent differential capacitance of polymer diodesUsing admittance spectroscopy, we found that bipolar organic diodes based on pi-conjugated polymer, 2-methoxy-5-(20-ethylhexyloxy), MEH-PPV, have strong divergent contribution to the device differential capacitance. It is positive at low bias voltages, turns negative at intermediate biases, and beco...2012-01-01
14Rogachev, AndreyAdmittance spectroscopy study of polymer diodes in small magnetic fieldsWe performed a systematic study of bipolar and unipolar organic diodes based on the p-conjugated polymer, 2-methoxy-5-(20-ethylhexyloxy) (MEH-PPV), using electronic and magneto-transport measurements with magnetic field in the range 0-180mT and admittance spectroscopy in the frequency range 1 Hz<f<1...2012-01-01
15Sekercioglu, CaganMapping functional traits: comparing bundance and presence-absence estimates at large spatial scalesEfforts to quantify the composition of biological communities increasingly focus on functional traits. The composition of communities in terms of traits can be summarized in several ways. Ecologists are beginning to map the geographic distribution of trait-based metrics from various sources of data,...2012-01-01
16Saam, BrianAsymptotic and intermediate long-time behavior of nuclear free induction decays in polycrystalline solids and powdersFree induction decay (FID) measured by nuclear magnetic resonance (NMR) in a polycrystalline solid is the isotropic average of the FIDs for individual single crystallites. It has been recently proposed theoretically and verified experimentally that the long-time behavior of single-crystal FIDs has t...2012-01-01
17Olivera, Baldomero M.Stapling mimics noncovalent interactions of γ-carboxyglutamates in conantokins, peptidic antagonists of N-methyl-D-aspartic acid receptorsBackground: Can dicarba bridges (stapling) replace noncovalent interactions that stabilize helical conformation of neuroactivepeptides? Results: A rational design, synthesis, structural, and functional characterization of stapled conG analogs that target NMDAreceptors is reported. Conclusion: Staple...2012-01-01
18Lupton, John MarkProbing the electrode-polymer interface in conjugated polymer devices with surface-enhanced Raman scatteringA crucial consideration in organic devices is the role of the interface between a metal electrode and the active polymer material. Here, we use the conjugated polymer poly[2-methoxy-5-(2-ethylhexyl-oxy)-1,4-phenylene-vinylene] (MEH-PPV) with model gold and silver electrodes to perform surface-enhanc...2012-01-01
19Armentrout, Peter B.Guided ion beam and theoretical studies of sequential bond energies of water to sodium cysteine cationAbsolute bond dissociation energies of water to sodium cysteine (Cys) cations and cysteine to hydrated sodium cations are determined experimentally by collision-induced dissociation of Na+Cys(H2O)x, where x = 1 - 4, complexes with xenon in a guided ion beam mass spectrometer. Experimental results sh...2010-01-01
20Sekercioglu, CaganForest fragmentation hits insectivorous birds hardHabitats around the world, especially in the tropics, are being fragmented at a rapid rate, causing a tremendous loss of biodiversity[1]. For example, 12% of the approximately 10,000 bird species are threatened with extinction in the next 10 to 100 years, and another 8% are near-threatened[2]. This ...2002-01-01
21Sekercioglu, CaganChewing lice (phthiraptera) found on songbirds (Passeriformes) in TurkeyObjective: This study was performed to detect chewing lice species found on the songbirds at Lake Kuyucuk bird ringing station in the Kars province located in eastern Turkey. Methods: Chewing lice were collected from songbirds captured between September and October 2009. Fifty-one birds belonging t...2011-01-01
22Sekercioglu, CaganThe need to quantify ecosystem services provided by birdsWhat are birds worth-what is their actual dollar value to human society? To most of us in the ornithological community, birds are invaluable. But in these times we need more specific rationales to convince policy makers and business leaders to include bird conservation in land-use and development de...2011-01-01
23Sekercioglu, CaganIbis questThe day I arrived in Ethiopia, researcher Yilma Dellelegn Abebe of the Ethiopia Wildlife and Natural History Society (EWNHS) was just leaving the capital city, Addis Ababa, to search for three Northern Bald Ibises in a remote, roadless area of the country. These critically endangered birds had been ...2007-01-01
24Sekercioglu, CaganThe worldwide variation in avian clutch size across species and spaceTraits such as clutch size vary markedly across species and environmental gradients but have usually been investigated from either a comparative or a geographic perspective, respectively. We analyzed the global variation in clutch size across 5,290 bird species, excluding brood parasites and pelagic...2008-01-01
25Sekercioglu, CaganLandscape constraints on functional diversity of birds and insects in tropical agroecosystemsIn this paper, we analyze databases on bird and insects to assess patterns of functional diversity in human-dominated landscapes in the tropics. Perspective from developed landscapes is essential for understanding remnant natural ecosystems, because most species experience their surroundings at spat...2008-01-01
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