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Journal articles on the topic '2e)'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 August 2024

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1

Crombie, Leslie, Mark A. Horsham, and Sandra R. M. Jarrett. "(2E,4Z,6E)-, (2E,4E,6E)- and (2E,4E,6Z)-." Tetrahedron Letters 30, no. 32 (January 1989): 4299–302. http://dx.doi.org/10.1016/s0040-4039(01)80715-2.

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2

Zárate, Leticia. "On the BP-homology of 2e × 2e." Journal of K-theory 3, no. 3 (July 23, 2008): 409–35. http://dx.doi.org/10.1017/is008007006jkt053.

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AbstractWe study υ0- and υ1-divisibility properties of the [2e]-series associated to the universal 2-typical formal group law. This allows us to identify elements annihilating the toral class τ in BP*(2e × 2e). We conjecture that these elements form a minimal system of generators of the annihilator ideal of τ. This would provide a Landweber-type presentation for the BP-homology of 2e × 2e from which the relation hom:dimBP (Z2e × Z2e) = 2 would be an easy consequence.

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3

Al-Adili, Ali, Kaj Jansson, Diego Tarrío, Franz-Josef Hambsch, Alf Göök, Stephan Oberstedt, Marc Olivier Frégeau, et al. "Studying fission neutrons with 2E-2v and 2E." EPJ Web of Conferences 169 (2018): 00002. http://dx.doi.org/10.1051/epjconf/201816900002.

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This work aims at measuring prompt-fission neutrons at different excitation energies of the nucleus. Two independent techniques, the 2E-2v and the 2E techniques, are used to map the characteristics of the mass-dependent prompt fission neutron multiplicity, v(A), when the excitation energy is increased. The VERDI 2E-2v spectrometer is being developed at JRC-GEEL. The Fission Fragment (FF) energies are measured using two arrays of 16 silicon (Si) detectors each. The FFs velocities are obtained by time-of-flight, measured between micro-channel plates (MCP) and Si detectors. With MCPs placed on both sides of the fission source, VERDI allows for independent timing measurements for both fragments. 252Cf(sf) was measured and the present results revealed particular features of the 2E-2v technique. Dedicated simulations were also performed using the GEF code to study important aspects of the 2E-2v technique. Our simulations show that prompt neutron emission has a non-negligible impact on the deduced fragment data and affects also the shape of v(A). Geometrical constraints lead to a total-kinetic energy-dependent detection efficiency. The 2E technique utilizes an ionization chamber together with two liquid scintillator detectors. Two measurements have been performed, one of 252Cf(sf) and another one of thermal-neutron induced fission in 235U(n,f). Results from 252Cf(sf) are reported here.

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4

Bolognesi, P., Y. Pavlyukh, M. Schüler, J. Berakdar, and L. Avaldi. "(e,2e) and (γ,2e) experiments on C60." Journal of Physics: Conference Series 488, no. 2 (April 10, 2014): 022018. http://dx.doi.org/10.1088/1742-6596/488/2/022018.

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5

Anketell, Kimberley, and Mary Hill. "Resource teachers of learning and behaviour (RTLB) support for twice exceptional students." Set: Research Information for Teachers, no. 2 (October 1, 2022): 16–21. http://dx.doi.org/10.18296/set.1506.

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Twice-exceptional (2e) students face many barriers to learning opportunities due to their combinations of giftedness and learning disabilities. If 2e students are referred to special education teachers such as resource teachers of learning and behaviour (RTLB), challenges may be encountered when RTLB lack knowledge of twice-exceptionality. This article provides insight into the barriers RTLB face when identifying 2e students, and how RTLB provide learning programmes that promote and strengthen 2e students’ talents while scaffolding support for their learning disabilities. It draws upon a small exploratory qualitative study of RTLB knowledge of 2e concepts, how they identified these students, and the common intervention approaches used when working with 2e students.

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6

Karalius, Vidmantas, Raimondas Mozūraitis, Vincas Būda, Ilme Libikas, and Anna-Karin Borg-Karlson. "Sex Attractants for Six Moth Species of the Families Brachodidae, Choreutidae and Tineidae from Kazakhstan and Lithuania." Zeitschrift für Naturforschung C 60, no. 7-8 (August 1, 2005): 625–31. http://dx.doi.org/10.1515/znc-2005-7-819.

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Sex attractants were established for one Brachodidae, three Choreutidae and two Tineidae moth species during field screening tests with (2E,13Z)-octadecadien-1-al, (2E,13Z)-, (3E,13Z)-, (3Z,13Z)-octadecadien-1-ols and their acetates (2E,13Z-18:Ald, 2E,13Z-, 3E,13Z-, 3Z,13Z-18:OH/OAc) as well as of binary mixtures of these compounds in West-Kazakhstan and Lithuania. Males of Brachodes appendiculata were attracted by 3E,13Z-18:OAc, Prochoreutis ultimana and P. myllerana by 2E,13Z-18:OH, Monopis palidella by 2E,13Z-18:Ald and Triaxomera fulvimitrella by binary mixtures of 3Z,13Z-18:OAc with either 3E,13Z-18:OH in the ratio of 5:5 or 3Z,13Z-18:OH in the ratio of 9:1 (v/v). The 3-component mixture composed of 2E,13Z-18:OH, 3Z,13Z-18:OH and 2E,13Z-18:Ald in the ratio 1:1:1 was developed to attract Prochoreutis sehestediana males. Attraction antagonists for B. appendiculata, P. ultimana and M. palidella were shown.

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7

Einzel, Dietrich. "50 Years of Fluxoid Quantization: 2e or Not 2e." Journal of Low Temperature Physics 163, no. 5-6 (February 19, 2011): 215–37. http://dx.doi.org/10.1007/s10909-011-0349-x.

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8

Childs, Dara W. "Twice-Running-Speed Response Due to Elliptical Bearing Clearances." Journal of Vibration and Acoustics 125, no. 1 (January 1, 2003): 64–67. http://dx.doi.org/10.1115/1.1526509.

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Yamamoto [1] examined a vertical Jeffcott rotor model with bearing clearances and showed that a small bearing “dead-band” clearance could have a dramatic influence on synchronous rotor response. Recent test results for a turbopump in a liquid-rocket-engine development program showed a twice-running-speed response (2E) on the order of 8 gs over a wide speed range, while synchronous response levels were only at an 0.5 g level. Childs [2] predicted a sharp 2E response for the Advanced Technology Development, High-Pressure Fuel Turbopump (ATD-HPFTP) of the Space Shuttle Main Engine due to bearing clearances, when the running speed was nearly one half of a housing-mode natural frequency, i.e., when the 2E frequency was close to the housing mode natural frequency. However, his model did not predict significant 2E response over a broad running-speed range. Ellipticity of the bearing dead-band clearances was suggested as a possible cause for the observed 2E phenomenon. An extension of Yamamoto’s analysis [1] is presented including bearing ellipticity to examine that proposed explanation. The analysis results show that clearance ellipticity will produce 2E response over a considerable running-speed range during which the bearing clearance is engaged; however, the predicted 2E-response amplitude corresponding to an ellipticity of 0.1 were about 10% of the synchronous levels, and the projected 2E acceleration levels were about 40% of synchronous. The predicted 2E response includes a resonance peak (that can be sharp) at speeds slightly above 25% of the rotor critical speed. The perturbation-analysis results provide an explanation for persistent, lower 2E-response levels observed in many turbopumps, but do not explain the high levels observed with this turbopump.

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9

Langa, Malose M., Pedro J. Jugo, Matthew I. Leybourne, and Danie F. Grobler. "Sulfide mineral chemistry and platinum-group minerals of the UG-2 chromitite in the northern limb of the Bushveld Igneous Complex, South Africa." Canadian Mineralogist 59, no. 6 (November 1, 2021): 1339–62. http://dx.doi.org/10.3749/canmin.2100042.

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ABSTRACT The UG-2 chromitite layer, with its elevated platinum-group element content, is a key marker horizon in the eastern and western limbs of the Bushveld Igneous Complex and the largest platinum-group element chromite-hosted resource of its kind in the world. In contrast, much less is known about its stratigraphic equivalent in the northern limb, the “UG-2 equivalent” (UG-2E) chromitite. Recent studies on chromite mineral chemistry show similarities between the UG-2 and sections of the UG-2E, but also that the UG-2E was partially contaminated by assimilation of local metasedimentary rocks. Here, we provide a detailed characterization of sulfide minerals and platinum-group minerals in a suite of samples from the UG-2E and compare the results with data obtained from a reference suite of samples from the UG-2. Results from petrographic observations, electron probe microanalysis, laser ablation-inductively coupled plasma-mass spectrometry, quantitative evaluation of materials by scanning electron microscopy, and δ34S isotopes show that: (1) sulfide minerals in the UG-2E and UG-2 consist mainly of pentlandite-chalcopyrite-pyrrhotite, but pyrrhotite is significantly more abundant in the UG-2E and almost absent in the UG-2; (2) iron contents in pentlandite from the UG-2E are significantly higher than in the UG-2; (3) platinum-group element contents within sulfide minerals are different between the two chromitites; (4) UG-2E platinum-group minerals are dominated by arsenides and bismuthotellurides, and by alloys and platinum-group element-sulfide minerals in the UG-2; (5) sulfide mineral chemistry and δ34S values indicate some crustal contamination of the UG-2E; and (6) sulfide mineral and secondary silicate mineral textures in both the UG-2E and UG-2 are indicative of minor, millimeter- to centimeter-scale, hydrothermal alteration. From our observations and results, we consider the UG-2E chromitite in the northern limb to be the equivalent to the UG-2 in the eastern and western limbs that has been contaminated by assimilation of Transvaal Supergroup footwall rocks during emplacement. The contamination resulted in UG-2E sulfide mineral elemental contents and platinum-group mineral types and abundances that are distinct from those of the UG-2 in the rest of the Bushveld.

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10

Tüzün, Ümmüye Nur. "Designing Science Learning Domains for 2e (Twice Exceptional) Students." Journal of Science Learning 4, no. 3 (July 1, 2021): 203–9. http://dx.doi.org/10.17509/jsl.v4i3.31570.

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2e (twice-exceptional) students are gifted and differently-abled, so they need specific learning domains according to their needs. This research aimed to design science learning domains for a 2e (gifted and blind) student to enhance his critical thinking in his special learning needs in Ankara province in Turkey in the 2020-2021 academic year's first term. Single-subject research was employed. The 2e student was ten years old. Through the application process, the 2e student argued 3D modeled Schrödinger's cat thought experiment. The main application's intervention was conducted to provide the research's internal validity since it was single-subject research. Through the intervention application, the 2e student argued 3D modeled Schrödinger's twin cats thought experiment. We noted both social dialectic argumentation processes as texts, and these texts were used as data collecting tools. Descriptive analysis was utilized to gathered data. The study showed that the 2e student could construct arguments containing claim, data, warrant, and weak rebuttals in the main application, which meant his argumentation quality level was average, so his critical thinking too. In contrast, the 2e student-constructed arguments containing claim, data, weak rebuttal, and rebuttal meant his argumentation quality level enhanced his critical thinking.

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11

Maddocks, Danika L. S. "Cognitive and Achievement Characteristics of Students From a National Sample Identified as Potentially Twice Exceptional (Gifted With a Learning Disability)." Gifted Child Quarterly 64, no. 1 (December 16, 2019): 3–18. http://dx.doi.org/10.1177/0016986219886668.

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It is important to identify cognitive and achievement characteristics that differentiate students who are twice exceptional because they are gifted and have a learning disability (2e-LD) from gifted and average ability peers because this information informs empirically-based identification and support systems for this population. In this study, I classified school-age participants ( N = 3,865) in the nationally representative standardization sample for the Woodcock-Johnson IV (WJ IV) Tests of Cognitive Abilities and Achievement as potentially gifted, 2e-LD, or of average ability based on their WJ IV performance. I compared mean levels of performance, strengths and weaknesses, and intraindividual heterogeneity across 2e-LD, gifted, and average-ability groups. The 2e-LD group demonstrated greater heterogeneity in performance, and their strengths and weaknesses were largely consistent with past research and writing on 2e-LD characteristics. Results support some 2e-LD identification recommendations from the literature and highlight the potential benefits of individualized assessment, dual differentiation, and a de-emphasis of speeded academic tasks.

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12

Deleau, Michel. "2e après-propos." Enfance 59, no. 3 (2007): 298. http://dx.doi.org/10.3917/enf.593.0298.

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13

Lilleyman, J. S. "Leukaemia Diagnosis 2e." Clinical & Laboratory Haematology 21, no. 3 (June 1999): 225. http://dx.doi.org/10.1046/j.1365-2257.1999.00223.x.

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14

Coplan, M. A., J. H. Moore, and J. P. Doering. "(e,2e) spectroscopy." Reviews of Modern Physics 66, no. 3 (July 1, 1994): 985–1014. http://dx.doi.org/10.1103/revmodphys.66.985.

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15

Daniell, Steven, and Louise Desjardins. "La 2e Avenue." World Literature Today 69, no. 4 (1995): 762. http://dx.doi.org/10.2307/40151625.

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16

Sironneau, Jacques. "Eau (2e partie)." Revue Juridique de l'Environnement 36, no. 3 (2011): 411–28. http://dx.doi.org/10.3406/rjenv.2011.5560.

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17

Sironneau, Jacques. "Eau (2e partie)." Revue Juridique de l'Environnement 37, no. 2 (2012): 333–73. http://dx.doi.org/10.3406/rjenv.2012.5664.

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18

Sironneau, Jacques. "Eau (2e partie)." Revue Juridique de l'Environnement 38, no. 4 (2013): 725–42. http://dx.doi.org/10.3406/rjenv.2013.6130.

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19

Sironneau, Jacques. "Eau (2e partie)." Revue Juridique de l'Environnement 38, no. 3 (2013): 529–43. http://dx.doi.org/10.3406/rjenv.2013.6168.

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20

Sironneau, Jacques. "Eau (2e partie)." Revue Juridique de l'Environnement 39, no. 2 (2014): 341–56. http://dx.doi.org/10.3406/rjenv.2014.6271.

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21

Hilton, Ann. "Nursing calculations 2E." Nurse Education Today 7, no. 6 (December 1987): 301. http://dx.doi.org/10.1016/0260-6917(87)90144-4.

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22

Lu, Xueer, Ziwen Zhang, Yingying Xu, Jun Lu, Wenjian Tang, and Jing Zhang. "Effect of new carbonyl cyanide aromatic hydrazones on biofilm inhibition against methicillin resistant Staphylococcus aureus." RSC Advances 10, no. 30 (2020): 17854–61. http://dx.doi.org/10.1039/d0ra03124k.

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2e and 2j with strong p-NO₂ and p-CF₃ at phenyl ring had the lowest MICs against S. aureus and MRSA. 2e displayed unaided or synergistic efficacy against MRSA, especially combined with ofloxacin. EM revealed that 2e destroys biofilms and cell membranes.

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23

Gunasekaran, Pethaiah, Ho Jin Han, Jung hoon Choi, Eun Kyoung Ryu, Nam Yeong Park, Geul Bang, Yeo Kyung La, et al. "Amphipathic Small Molecule AZT Compound Displays Potent Inhibitory Effects in Cancer Cell Proliferation." Pharmaceutics 13, no. 12 (December 3, 2021): 2071. http://dx.doi.org/10.3390/pharmaceutics13122071.

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Cancer has been identified as a leading cause of death worldwide, and the increasing number of cancer cases threatens to shorten the average life expectancy of people. Recently, we reported a 3-azido-3-deoxythymidine (AZT)-based amphipathic small molecule, ADG-2e that revealed a notable potency against tumor metastasis. To evaluate the anticancer potential of ADG-2e, we assessed its anticancer potency in vitro and in vivo. Anticancer screening of ADG-2e against cervical cancer cells, HeLa CCL2, and BT549 mammary gland ductal carcinoma showed significant inhibition of cancer cell proliferation. Furthermore, mechanistic investigations revealed that cancer cell death presumably proceeded through an oncosis mechanistic pathway because ADG-2e treated cells showed severe damage on the plasma membrane, a loss of membrane integrity, and leakage of α-tubulin and β-actin. Finally, evaluation of the antitumorigenic potential of ADG-2e in mouse xenograft models revealed that this compound potentially inhibits cancer cell proliferation. Collectively, these findings suggest that ADG-2e can evolve as an anticancer agent, which may represent a model for nucleoside-based small molecule anticancer drug discovery.

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24

Yin, Hao, Ronglan Pan, Manman Zou, Xin Ge, Changxuan Shi, Jili Yuan, Caijuan Huang, and Haibo Xie. "Recent Advances in Carbon-Based Single-Atom Catalysts for Electrochemical Oxygen Reduction to Hydrogen Peroxide in Acidic Media." Nanomaterials 14, no. 10 (May 9, 2024): 835. http://dx.doi.org/10.3390/nano14100835.

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Electrochemical oxygen reduction reaction (ORR) via the 2e− pathway in an acidic media shows great techno-economic potential for the production of hydrogen peroxide. Currently, carbon-based single-atom catalysts (C-SACs) have attracted extensive attention due to their tunable electronic structures, low cost, and sufficient stability in acidic media. This review summarizes recent advances in metal centers and their coordination environment in C-SACs for 2e−-ORR. Firstly, the reaction mechanism of 2e−-ORR on the active sites of C-SACs is systematically presented. Secondly, the structural regulation strategies for the active sites of 2e−-ORR are further summarized, including the metal active center, its species and configurations of nitrogen coordination or heteroatom coordination, and their near functional groups or substitute groups, which would provide available and proper ideas for developing superior acidic 2e−-ORR electrocatalysts of C-SACs. Finally, we propose the current challenges and future opportunities regarding the acidic 2e−-ORR pathway on C-SACs, which will eventually accelerate the development of the distributed H2O2 electrosynthesis process.

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25

Cui, Yujie, and Longjiu Cheng. "The nature of the multicenter bonding in π-[TCNE]22− dimer: 4c/2e, 12c/2e, or 20c/2e?" RSC Adv. 7, no. 78 (2017): 49526–31. http://dx.doi.org/10.1039/c7ra09023d.

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26

De Bonte, Austina, Ciara A. McCaffrey, Hilary K. Wisdom, Megan E. Locke, Nancy G. Torgerson, and Terri Lucero. "Auditory Processing Disorders and Vision Processing Disorders in Twice-Exceptionality (2e): Are These Foundational Factors Being Overlooked?" Journal for the Education of the Gifted 47, no. 1 (March 2024): 30–53. http://dx.doi.org/10.1177/01623532231214568.

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A growing understanding of twice-exceptional (2e) students has caused many to consider the possibility of misdiagnosis and missed diagnoses in the gifted student. Despite this, auditory processing disorders (APD) and vision processing disorders (VPD) are seldom examined in the 2e research literature, yet are not uncommon in the 2e population. Because both auditory and vision processing are foundational to the human experience, challenges in these areas may significantly impact higher-order skills such as attention and executive function, as well as academic performance. This article explores what is currently known about these processing disorders, examines potential co-occurring conditions, such as dyslexia and Attention Deficit/Hyperactivity Disorder (ADHD), and presents clinical case file data suggesting how these sensory disorders may appear in the 2e population. Proper identification, management, and support of APD and VPD in 2e students could improve our ability to address student needs at the foundational level.

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27

Teichert, Axel, Tilo Lübken, Jürgen Schmidt, Andrea Porzel, Norbert Arnold, and Ludger Wessjohann. "Unusual Bioactive 4-Oxo-2-alkenoic Fatty Acids from Hygrophorus eburneus." Zeitschrift für Naturforschung B 60, no. 1 (January 1, 2005): 25–32. http://dx.doi.org/10.1515/znb-2005-0105.

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From fruit bodies of the basidiomycete Hygrophorus eburneus (Bull.: Fr.) Fr. (Tricholomataceae) eight fatty acids (C16, C18) with γ -oxocrotonate partial structure could be isolated. Initial tests demonstrate their bactericidal and fungicidal activity. The structures of (2E,9E)-4-oxooctadeca- 2,9,17-trienoic acid (1), (2E,11Z)-4-oxooctadeca-2,11,17-trienoic acid (2), (E)-4-oxohexadeca-2,15- dienoic acid (3), (E)-4-oxooctadeca-2,17-dienoic acid (4), (2E,9E)-4-oxooctadeca-2,9-dienoic acid (5), (2E,11Z)-4-oxooctadeca-2,11-dienoic acid (6), (E)-4-oxohexadec-2-enoic acid (7), and (E)-4- oxooctadec-2-enoic acid (8) were elucidated on the basis of their spectroscopic data.

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28

Zhang, Ying, Hui Yu, Shuzheng Fu, Luying Tan, Junli Liu, Baisong Zhou, Le Li, et al. "Synthesis and Anti-Hepatocarcinoma Effect of Amino Acid Derivatives of Pyxinol and Ocotillol." Molecules 26, no. 4 (February 3, 2021): 780. http://dx.doi.org/10.3390/molecules26040780.

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Aiming at seeking an effective anti-hepatocarcinoma drug with low toxicity, a total of 24 amino acid derivatives (20 new along with 4 known derivatives) of two active ocotillol-type sapogenins (pyxinol and ocotillol) were synthesized. Both in vitro and in vivo anti-hepatocarcinoma effects of derivatives were evaluated. At first, the HepG2 human cancer cell was employed to evaluate the anti-cancer activity. Most of the derivatives showed obvious enhanced activity compared with pyxinol or ocotillol. Among them, compound 2e displayed the most excellent activity with an IC50 value of 11.26 ± 0.43 µM. Next, H22 hepatoma-bearing mice were used to further evaluate the anti-liver cancer activity of compound 2e. It was revealed that the growth of H22 transplanted tumor was significantly inhibited when treated with compound 2e or compound 2e combined with cyclophosphamide (CTX) (p < 0.05, p < 0.01), and the inhibition rates of tumor growth were 35.32% and 55.30%, respectively. More importantly, compound 2e caused limited damage to liver and kidney in contrast with CTX causing significant toxicity. Finally, the latent mechanism of compound 2e was explored by serum and liver metabolomics based on ultra-performance liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS) technology. A total of 21 potential metabolites involved in 8 pathways were identified. These results suggest that compound 2e is a promising agent for anti-hepato-carcinoma, and that it also could be used in combination with CTX to increase efficiency and to reduce toxicity.

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29

Jimenez-Villegas, Santiago, Sara R. Kelly, and Samira Siahrostami. "SnO₂-supported single metal atoms: a bifunctional catalyst for the electrochemical synthesis of H₂O₂." Journal of Materials Chemistry A 10, no. 11 (2022): 6115–21. http://dx.doi.org/10.1039/d1ta07562d.

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30

Huang, Zhi-Zhen, Liang-Wei Wen, and Xian Huang. "Stereoselective Synthesis of (2E)-,(2E,4E)-Unsaturated Carboxamides via Tellurium Ylides." Synthetic Communications 20, no. 17 (September 1990): 2579–84. http://dx.doi.org/10.1080/00397919008051464.

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31

Einzel, Dietrich. "Erratum to: 50 Years of Fluxoid Quantization: 2e or Not 2e." Journal of Low Temperature Physics 164, no. 1-2 (May 18, 2011): 115. http://dx.doi.org/10.1007/s10909-011-0372-y.

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32

Davis, Donald M. "v1-periodic 2-exponents of SU(2e) and SU(2e+1)." Journal of Pure and Applied Algebra 216, no. 6 (June 2012): 1268–72. http://dx.doi.org/10.1016/j.jpaa.2012.01.001.

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33

Harcourt, Richard D., and Thomas M. Klapötke. "Comment on “A quantitative definition of hypervalency” by M. C. Durrant, Chem. Sci., 2015, 6, 6614." Chemical Science 7, no. 5 (2016): 3443–47. http://dx.doi.org/10.1039/c5sc04866d.

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34

Prior, Susan. "Transition and Students With Twice Exceptionality." Australasian Journal of Special Education 37, no. 1 (April 18, 2013): 19–27. http://dx.doi.org/10.1017/jse.2013.3.

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Twice exceptional is one of the terms used to describe students who have giftedness and a disability. This is a small heterogeneous population of individual learners who are underserved in special, gifted, and mainstream education settings. Despite the availability of research on transition for students with disabilities, there is little research or literature available on transition for students who experience twice exceptionality (2E). This paper provides a review of the literature available on 2E, taking a lifespan perspective and a school transitions context for students experiencing 2E. Finally, the synthesis of 2E and transition highlights a potential way forward in the research across special, gifted, mainstream and inclusive education to transform student profiling, identification and transition.

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35

King, R. Bruce. "Strained Configurations in Three-Dimensional Analogues of Kekulé-Type Structures for Deltahedral Boranes." Collection of Czechoslovak Chemical Communications 67, no. 6 (2002): 751–68. http://dx.doi.org/10.1135/cccc20020751.

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Localized structures analogous to the Kekulé structures for benzenoid hydrocarbons can be constructed for the deltahedral boranes BnHn2-. These localized structures contain exactly three two-center two-electron (2c-2e) B-B bonds and n - 2 three-center two-electron (3c-2e) B-B-B bonds. The number of equivalent such Kekulé-type structures corresponds to the index of the symmetry group of the Kekulé structure, K, in the symmetry group, D, of the deltahedron. Three-dimensional Kekulé-type structures with the following configurations exhibit excessive strain and are therefore unfavorable: (i) structures having one or more pairs of boron atoms connected simultaneously by a 2c-2e B-B bond and a 3c-2e B-B-B bond (violation of the O'Neill-Wade restrictions); (ii) structures in which the three 2c-2e B-B bonds are excessively concentrated occupying only three or four vertices (the undesirable ∆, U, and Y configurations). Computations by Lipscomb and coworkers with partial retention of diatomic differential overlap (PRDDO) suggest that wide distribution of the three 2c-2e B-B bonds throughout the deltahedron and a minimum number of empty faces are more important than maximum symmetry in leading to the most favorable Kekulé-type structure.

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36

Stefani, G. "Reflection (e,2e) experiments from surfaces." Canadian Journal of Physics 74, no. 11-12 (November 1, 1996): 822–28. http://dx.doi.org/10.1139/p96-117.

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The application of electron–electron coincidence experiments (e,2e) to solid samples, although begun in the earliest stages of the development of such a spectroscopy, has been extensively exploited only during the past few years and the applicability to surfaces has just started to be pursued. The feasibility of (e,2e) experiments in grazing angle reflection geometry has been recently established for the first time. In spite of the success, the possibility of using the grazing angle (e,2e) technique as a binding energy and (or) momentum spectroscopy of surface states rests on the accurate knowledge of the ionization mechanism. To understand which is the dominant process responsible for the reflection (e,2e) events, under various energies and kinematical conditions, is still an open problem. Two possible mechanisms are envisaged that can generate pairs of correlated electrons in the reflection geometry: a single inelastic collision at large momentum transfer or a double collision (elastic and inelastic) at high and low momentum transfer, respectively. In the present paper are reviewed the results of recent (e,2e) experiments performed at energies from threshold up to 300 eV and with kinematics from normal to grazing incidence. They allow elucidation of the (e,2e) ionization mechanism on surfaces at both grazing and normal impact.

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37

Li, Yinwu, Jiahao Liu, Cheng Hou, Youxiang Shao, Ling-Bo Qu, Cunyuan Zhao, and Zhuofeng Ke. "Elucidating metal hydride reactivity using late transition metal boryl and borane hydrides: 2c–2e terminal hydride, 3c–2e bridging hydride, and 3c–4e bridging hydride." Catalysis Science & Technology 8, no. 13 (2018): 3395–405. http://dx.doi.org/10.1039/c8cy00766g.

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Ghaedi, M., E. Alam barakat, A. Asfaram, B. Mirtamizdoust, A. A. Bazrafshan, and S. Hajati. "Efficient adsorption of Europhtal onto activated carbon modified with ligands (1E,2E)-1,2-bis(pyridin-4-ylmethylene)hydrazine (M) and (1E,2E)-1,2-bis(pyridin-3-ylmethylene)hydrazine (SCH-4); response surface methodology." RSC Advances 5, no. 53 (2015): 42376–87. http://dx.doi.org/10.1039/c5ra03622d.

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39

Abid, Muhammad Yasin, Muhammad Tasnim Khan, and Hafeez ur Rehman. "Does Institutional Quality Improve Environmental Quality? New Evidence from NARDL Approach." Review of Economics and Development Studies 8, no. 2 (June 30, 2022): 97–109. http://dx.doi.org/10.47067/reads.v8i2.439.

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The current research intends to look at the asymmetrical influence of institutional quality (IQ) on carbon emissions (????????2e) by incorporating additional variables i.e., trade openness (TO), population growth (PG), and energy use (E) over the period 1980-2020. The current study used nonlinear ARDL to demonstrate the nonlinear influence of IQ on ????????2e. The empirical finding suggests that positive fluctuation in institutional quality considerably improves the environmental quality in Pakistan in the short and long run. At the same time, the outcomes show that negative fluctuations in IQ lead to considerably contributed to ????????2e in long run. GDP and E are positively connected with ????????2e. The policy makers could need to enhance the institutional quality leads to attaining the long-term ecological objectives.

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40

Chakraborty, Arghya, Jan Fulara, and John P. Maier. "Electronic Spectroscopy of a C7H4+ Isomer in a Neon Matrix: Methyltriacetylene Cation." Australian Journal of Chemistry 67, no. 3 (2014): 416. http://dx.doi.org/10.1071/ch13467.

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Absorptions commencing at 602.6 nm are detected following deposition of mass-selected C7H4+ in a 6 K neon matrix produced from a 1 : 1 mixture of diacetylene and propyne in an ion source. The 602.6 nm system, and a weaker one near 421.1 nm, are assigned to the A 2E ← X 2E and B 2E ← X 2E electronic transitions of methyltriacetylene cation (C3V symmetry), based on mass-selection, spectroscopic analysis of the vibrational structure, and the excitation energies calculated with CASPT2. Structured fluorescence is detected in the 600–760 nm range upon laser excitation at wavelengths of the CH3C6H+ absorptions. The vibrational bands observed in the absorption and fluorescence spectra are assigned with the aid of calculated frequencies of the totally symmetric (a1) vibrations of methyltriacetylene cation.

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41

Sonntag, Anne-Katharina, Martina Bielaszewska, Alexander Mellmann, Nadine Dierksen, Peter Schierack, Lothar H. Wieler, M. Alexander Schmidt, and Helge Karch. "Shiga Toxin 2e-Producing Escherichia coli Isolates from Humans and Pigs Differ in Their Virulence Profiles and Interactions with Intestinal Epithelial Cells." Applied and Environmental Microbiology 71, no. 12 (December 2005): 8855–63. http://dx.doi.org/10.1128/aem.71.12.8855-8863.2005.

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ABSTRACT Thirteen Escherichia coli strains harboring stx 2e were isolated from 11,056 human stools. This frequency corresponded to the presence of the stx 2e allele in 1.7% of all Shiga toxin-producing E. coli (STEC) strains. The strains harboring stx 2e were associated with mild diarrhea (n = 9) or asymptomatic infections (n= 4). Because STEC isolates possessing stx 2e are porcine pathogens, we compared the human STEC isolates with stx 2e-harboring E. coli isolated from piglets with edema disease and postweaning diarrhea. All pig isolates possessed the gene encoding the F18 adhesin, and the majority possessed adhesin involved in diffuse adherence; these adhesins were absent from all the human STEC isolates. In contrast, the high-pathogenicity island encoding an iron uptake system was found only in human isolates. Host-specific patterns of interaction with intestinal epithelial cells were observed. All human isolates adhered to human intestinal epithelial cell lines T84 and HCT-8 but not to pig intestinal epithelial cell line IPEC-J2. In contrast, the pig isolates completely lysed human epithelial cells but not IPEC-J2 cells, to which most of them adhered. Our data demonstrate that E. coli isolates producing Shiga toxin 2e have imported specific virulence and fitness determinants which allow them to adapt to the specific hosts in which they cause various forms of disease.

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42

Machy, P., J. P. Bizozzero, H. Reggio, and L. Leserman. "Endocytosis and recycling of MHC-encoded class II molecules by mouse B lymphocytes." Journal of Immunology 145, no. 5 (September 1, 1990): 1350–55. http://dx.doi.org/10.4049/jimmunol.145.5.1350.

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Abstract The movements of mouse MHC-encoded class II (H-2E) and class I (H-2K), transferrin receptor and surface Ig molecules of B lymphocytes were studied using radiolabeled mAb and electron microscopy. A total of 10 to 20% of antibodies specific for H-2E molecules were gradually internalized with a t 1/2 of 15 min, reaching a plateau after 30 min at 37 degrees C. Equivalent results were obtained either with the whole antibody or Fab' fragments, suggesting that the internalization of class II molecules was spontaneous. Similar results were obtained with antibodies specific for the transferrin receptor, of which 50% were internalized with t 1/2 of 5 min, reaching a plateau after 30 min. In contrast to antibodies specific for H-2E molecules and the transferrin receptor, antibodies specific for H-2K were not internalized. Reappearance of internalized H-2E-specific antibodies at the cell surface was observed at 37 degrees C. When compared to antibodies specific for surface Ig, degradation of antibodies specific for H-2E molecules was limited even after 5 h incubation. Neither ammonium chloride nor cycloheximide inhibited internalization and recycling. Electron microscopy showed that internalization of H-2E molecules occurred via coated pits/coated vesicles. These results indicate that class II molecules are spontaneously internalized and recycled by B lymphocytes.

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Noverr, Mairi C., Peter R. Williamson, Ryan S. Fajardo, and Gary B. Huffnagle. "CNLAC1 Is Required for Extrapulmonary Dissemination of Cryptococcus neoformans but Not Pulmonary Persistence." Infection and Immunity 72, no. 3 (March 2004): 1693–99. http://dx.doi.org/10.1128/iai.72.3.1693-1699.2004.

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ABSTRACT The pathogenic yeast Cryptococcus neoformans produces a laccase enzyme (CNLAC1), which catalyzes the synthesis of melanin in the presence of phenolic compounds. A number of genes have been implicated in the regulation of laccase and melanization, including IPC1, GPA1, MET3, and STE12. Albino mutants derived from random mutagenesis techniques may contain mutations in genes that regulate multiple virulence factors, including CNLAC1. The goal of our study is to investigate the role of CNLAC1 in virulence and evasion of pulmonary host defenses after infection via the respiratory tract. Using a set of congenic laccase-positive (2E-TUC-4) and laccase-deficient (2E-TU-4) strains, we found that both strains are avirulent at a lower dose (104 CFU/mouse) in mice. After the infectious dose was increased to 106 CFU/mouse, 70% mortality was observed in mice infected with 2E-TUC-4 compared to no mortality in mice infected with 2E-TU-4 at day 30 postinfection. This observation confirms the requirement for CNLAC1 in virulence. Interestingly, we observed no differences between the two strains in pulmonary growth or in elicitation of cellular immune responses in the lung. The only measurable defect of 2E-TU-4 was in dissemination to extrapulmonary sites. To examine the role of CNLAC1 in dissemination, mice were infected intravenously. By week 3 postinfection, equal numbers of strains 2E-TUC-4 and 2E-TU-4 were recovered from the brain and spleen. This observation indicates that CNLAC1 facilitates escape from the lung, but not growth in the lungs or brain, and suggests a novel role for CNLAC1 in virulence during an infection aquired via the respiratory tract.

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Yenioğlu, Samed, Macid Ayhan Melekoğlu, and Büşra Yılmaz Yenioğlu. "A single-subject case study of twice exceptionality." Gifted Education International 38, no. 2 (January 9, 2022): 256–72. http://dx.doi.org/10.1177/02614294211064772.

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Twice exceptional (2e) individuals are defined as exceptionally talented persons in one or more areas including academic skills, creativity, leadership, and visual arts accompanied by challenges in one or more areas such as reading, writing, and mathematics. This study aimed to present the views on the academic and social-emotional development of a gifted student with learning disabilities. This research was conducted as a case study by using qualitative research methods. The authors conducted semi-structured interviews with the mother, elementary school teacher, special education teacher, and the 2e student himself. The study concluded that the participants emphasized the adaptations that were made in schools for 2e students and the need for support from parents, peers, and teachers for 2e students as well as the necessity for cooperation between school and family.

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45

Naik, Vasant S., Hemmige S. Yathirajan, Jerry P. Jasinski, Victoria A. Smolenski, and Christopher Glidewell. "The crystal structures of six (2E)-3-aryl-1-(5-halogenothiophen-2-yl)prop-2-en-1-ones." Acta Crystallographica Section E Crystallographic Communications 71, no. 9 (August 26, 2015): 1093–99. http://dx.doi.org/10.1107/s2056989015015534.

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The structures of six chalcones containing 5-halogenothiophen-2-yl substituents are reported: (2E)-1-(5-chlorothiophen-2-yl)-3-(4-ethylphenyl)prop-2-en-1-one, C15H13ClOS, (I), and (2E)-1-(5-bromothiophen-2-yl)-3-(4-ethylphenyl)prop-2-en-1-one, C15H13BrOS, (II), are isostructural in space groupP-1, while (2E)-1-(5-chlorothiophen-2-yl)-3-(4-ethoxyphenyl)prop-2-en-1-one, C15H13ClO2S, (III), and (2E)-1-(5-bromothiophen-2-yl)-3-(4-ethoxyphenyl)prop-2-en-1-one C15H13BrO2S, (IV), are isostructural in space groupP21/c. There are no hydrogen bonds of any kind in the structures of compounds (I) and (II), but in the structures of compounds (III) and (IV), the molecules are linked intoC(7) chains by means of C—H...O hydrogen bonds. In the structure of (2E)-3-(4-bromophenyl)-1-(5-chlorothiophen-2-yl)prop-2-en-1-one, C13H8BrClOS, (V), there are again no hydrogen bonds nor π–π stacking interactions but in that of (2E)-1-(5-bromothiophen-2-yl)-3-(3-methoxyphenyl)prop-2-en-1-one, C14H11BrO2S, (VI), the molecules are linked intoC(5) chains by C—H...O hydrogen bonds. In each of compounds (I)–(VI), the molecular skeletons are close to planarity, and there are short halogen...halogen contacts in the structures of compounds (II) and (V) and a short Br...O contact in the structure of compound (VI). Comparisons are made with the structures of some similar compounds.

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46

Karalius, Vidmantas, Raimondas Mozūraitis, Jan Miatleuski, Vincas Būda, and Povilas Ivinskis. "Sex Attractants for Six Clearwing and Tineid Species (Lepidoptera, Sesiidae and Tineidae) from Kazakhstan and Lithuania." Zeitschrift für Naturforschung C 56, no. 11-12 (December 1, 2001): 1120–25. http://dx.doi.org/10.1515/znc-2001-11-1233.

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Abstract Sex attractants for 3 Sesiidae and 3 Tineidae moth species in West-Kazakhstan and Lithuania were discovered by field screening tests of (3Z,13Z)-, (3E,13Z)-and (2E,13Z)-octadeca-dien-1-ols and their acetates as well as of some binary mixtures of these compounds. Total amount of chemicals was 0.3 mg/dispenser. Males of Synanthedon serica were attracted by a 5:5 mixture of 3E,13Z-18:OA c and 2E,13Z-18:OAc, Chamaesphecia bibioniformis by a 9:1 mixture of 3Z,13Z-18:OAc and 3E,13Z-18:OAc, Paranthrene tabaniformis by a 1:9 mixture of 3Z,13Z-18:OH and 3E,13Z-18:OH , Tinea nonimella by a 1:9 mixture of 3E,13Z-18:OH and 2E,13Z-18:OH , Monopis monachella by a 1:9 mixture of 3Z,13Z-18:OH and 2E,13Z -18:OH, and Nemaxera betulinella by a 9:1 mixture of 2E,13Z-18:OAc and the corresponding alcohol. The periods of attraction to the traps were registered for males of S. serica and Ch. bibioniformis and were found to occur at 15 - 18 and 1 5 -17 o'clock, local time, respectively.

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Hélin, Jean-Claude, and René Hostiou. "Enquêtes publiques (2e partie)." Revue Juridique de l'Environnement 41, no. 2 (2016): 395–404. http://dx.doi.org/10.3406/rjenv.2016.6997.

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Vandendriessche, Xavier, M. Benoit Lengaigne, Xavier Cabannes, and M. Dominique Hascher. "Présentation du 2e symposium." Gestion & Finances Publiques, no. 5 (September 2018): 8–12. http://dx.doi.org/10.3166/gfp.2018.00071.

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49

Coplan, M. A., J. H. Moore, and J. P. Doering. "Erratum: (e,2e) spectroscopy." Reviews of Modern Physics 66, no. 4 (October 1, 1994): 1517. http://dx.doi.org/10.1103/revmodphys.66.1517.

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50

Ma, Shi-Ying, and Ze-Bao Zheng. "(2E,5E)-2,5-Difurfurylidenecyclopentanone." Acta Crystallographica Section E Structure Reports Online 65, no. 12 (November 14, 2009): o3084. http://dx.doi.org/10.1107/s1600536809047278.

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