Relevant bibliographies by topics / PEC 51

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'PEC 51'

Author: Grafiati
Published: 5 June 2025
Last updated: 2 August 2025

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Journal articles on the topic "PEC 51"

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Kipkoech, Lydia Cheruto, and Salome Chesire. "THE LEVELS OF TEACHERS’ INVOLVEMENT IN MANAGERIAL DECISION MAKING IN SCHOOLS IN KENYA." Problems of Education in the 21st Century 34, no. 1 (2011): 79–87. http://dx.doi.org/10.33225/pec/11.34.79.

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Making decisions is one of the prime functions of educational management and in the current educational setup; more teachers are taking management roles in schools. This study therefore assessed the teachers’ involvement in managerial decision making in secondary schools within Keiyo district. The specific objectives were to: determine areas in which teachers are involved in decision making in secondary schools, establish levels of teachers’ involvements in decision making in secondary schools. The entire study was propounded on the basis of Vroom-Yetton-Jago Contingency Theory of participativ
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Silva, Marcos Henrique de Lira e. "Ativismo judicial e os poderes exercidos pelo Supremo Tribunal Federal: uma discussão sobre o sistema de controle de constitucionalidade no Brasil." Revista Brasileira de Filosofia e História 13, no. 1 (2024): 2476–95. http://dx.doi.org/10.18378/rbfh.v13i1.10403.

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A expansão do ativismo judicial e a crescente judicialização de questões políticas e sociais têm gerado debates profundos sobre a separação dos poderes e os limites ao controle de constitucionalidade em sistemas democráticos. Este artigo se propõe a analisar as implicações dos fenômenos causados pela expansão do Judiciário em face do princípio da separação dos poderes, com base na Proposta de Emenda à Constituição (PEC) 8/2021 e a recente Proposta de Emenda à Constituição (PEC) 51/2023. Por meio de uma revisão crítica da literatura, este trabalho pretende contribuir para o entendimento das com
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Mota, Jose Mauricio, Min Yuen Teo, Karissa Whiting, et al. "Pretreatment eosinophil counts (PEC) in metastatic urothelial carcinoma (mUC) treated with anti-PD1/PD-L1 checkpoint inhibitors (CPI)." Journal of Clinical Oncology 37, no. 15_suppl (2019): e16035-e16035. http://dx.doi.org/10.1200/jco.2019.37.15_suppl.e16035.

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e16035 Background: Eosinophils may influence anti-tumor immunity, having been associated with outcomes in CPI-treated melanoma. We sought to examine the association between PEC and outcomes of CPI-treated mUC. Methods: Independent CPI-treated cohorts were identified: discovery (n = 60, Teo et al JCO 2018) and validation (n = 111, non-overlapping CPI-treated mUC patients [pts] from 2014-19). Uni- and multivariate analyses were performed using Cox proportional hazard models to evaluate prognostic value of PEC on (i) overall survival (OS) and (ii) time on treatment (ToT). A platinum-treated metas
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Azevedo, Rodrigo Ghiringhelli de, and Andrea Ana Do Nascimento. "Desafios da reforma das polícias no Brasil: permanência autoritária e perspectivas de mudança." Civitas - Revista de Ciências Sociais 16, no. 4 (2016): 653. http://dx.doi.org/10.15448/1984-7289.2016.4.24402.

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O artigo debate os desafios para a reforma das Polícias no Brasil, partindo do resgate histórico das origens das forças policiais no Brasil e do legado autoritário sobre suas estruturas institucionais. Em seguida, são apresentadas e discutidas as tentativas de reforma nas polícias do estado do Rio de Janeiro, com enfoque especialmente na implantação das Unidades de Polícia Pacificadora e das Delegacias Legais. A partir destas experiências concretas de reforma, são apresentadas e discutidas as propostas de reforma legal inseridas na PEC 51, assim como no relatório da Comissão Nacional da Verdad
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Bansilal, Sarah, and Thelma Rosenberg. "REFLECTIONS OF SOUTH AFRICAN TEACHERS TEACHING UNDER ADVERSARIAL CONDITIONS." Problems of Education in the 21st Century 70, no. 1 (2016): 34–44. http://dx.doi.org/10.33225/pec/16.70.34.

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Teachers often teach under difficult conditions of which they do not have oversight. In order for teacher development programmes to be responsive to teachers’ needs, it is necessary to understand the teaching contexts of their participant teachers. Accordingly the purpose of the research was to identify the problems of practice reported by 41 Mathematical Literacy teachers who teach under impoverished conditions in South Africa. The participants identified their problems of practice and focused on one problem which they tried to address during a two-week teaching intervention. They were requir
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Gök, Mustafa, Mehtap Taştepe, and Ahmet Ala Sarımurat. "TECHNOLOGY-ENHANCED MATHEMATICAL MODELING IN FLIPPED LEARNING ENVIRONMENTS: CHALLENGES FOR PRE-SERVICE TEACHERS." Problems of Education in the 21st Century 83, no. 3 (2025): 342–65. https://doi.org/10.33225/pec/25.83.342.

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Due to the sudden closure of the university following a major earthquake, a mathematics education course was rapidly transformed into a fully online, technology-enhanced learning environment, offering a unique opportunity to examine how pre-service middle school mathematics teachers engage with mathematical modeling tasks within a flipped learning framework. Adopting a phenomenological approach, the research involves 51 pre-service middle school mathematics teachers enrolled in a mathematical modeling course in mathematics education. Data were collected through assignments, videos, reports fro
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Ji, Xiaoxu, Wumei Liu, Yumin Leng, and Aihua Wang. "Facile Synthesis of ZnO@TiO2Core-Shell Nanorod Thin Films for Dye-Sensitized Solar Cells." Journal of Nanomaterials 2015 (2015): 1–5. http://dx.doi.org/10.1155/2015/647089.

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ZnO nanorod thin films grown on fluorine-doped tin oxide (FTO) glasses have been synthesized via facile thermal evaporation. To optimize the performance of dye-sensitized solar cells (DSSCs), we fabricated ZnO@TiO2core-shell composite by a simple dip-coating method immersed in the mixed solution of Ti(OC4H9) and ethanol. Results of solar cell testing showed that ZnO@TiO2core-shell nanorod thin films on FTO significantly increased open circuit voltage (from 0.47 V to 0.53 V), short circuit current (from 10.78 mA/cm2to 13.98 mA/cm2), and fill factor (from 51% to 55%). The photoelectric conversio
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Zhang, Xunzhong, and Erik H. Ervin. "Physiological Assessment of Cool-season Turfgrasses Under Ultraviolet-B Stress." HortScience 44, no. 6 (2009): 1785–89. http://dx.doi.org/10.21273/hortsci.44.6.1785.

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Ultraviolet-B (280–320 nm) radiation is one of the major factors causing quality decline of transplanted turfgrass sod. Information on physiological parameters for assessing turfgrass tolerance to ultraviolet-B stress is lacking. The objective of this study was to evaluate ultraviolet-B tolerance of four cool-season turfgrass species and varieties using selected physiological parameters under artificial ultraviolet-B radiation stress. The physiological performance of 18 varieties of tall fescue (TF; Festuca arundinacea Schreb.), chewings fescue (CF; Festuca rubra L. ssp. commutata Gaud.), pere
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Jiang, Ping, Qian Zhang, Yajie Zhao, et al. "Extraction, Purification, and Biological Activities of Polysaccharides from Branches and Leaves of Taxus cuspidata S. et Z." Molecules 24, no. 16 (2019): 2926. http://dx.doi.org/10.3390/molecules24162926.

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Taxus cuspidata S. et Z. is an excellent natural source of bioactive polysaccharides and has various biological activities. The objective of this study was to evaluate the effect of antidiabetic and antitumor activities of polysaccharides from Taxus cuspidata branches and leaves (TCBL) and to determine the optimum extraction technology of TCBL using a low-temperature and high-efficiency enzyme and ultrasound-assisted coupled extraction (EUCE) method. Optimal technology parameters were determined as follows: an extraction temperature of 51 °C, an extraction time of 33 min, a ratio of material t
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Kumar, Mohit, and Challapali Subrahmanyam. "(Digital Presentation) Plasmonic Enhanced CuBi2O4 Photocathode for Solar Driven Water Splitting." ECS Meeting Abstracts MA2022-02, no. 50 (2022): 2459. http://dx.doi.org/10.1149/ma2022-02502459mtgabs.

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Hydrogen is a fuel for sustainable and renewable energy development that emits no carbon dioxide when compared to traditional fossil fuels. Photoelectrochemical (PEC) water splitting is a sustainable method of converting solar energy that falls on earth into useful chemical fuels. However, the sluggish surface reaction kinetics, high cost, and low natural abundance limit the use of photoelectrodes for practical application. It is critical to developing effective and resilient photoelectrodes that provide high efficiency with good stability. Copper based oxides like CuO, Cu2O, CuBi2O4, CuFeO2,
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Dissertations / Theses on the topic "PEC 51"

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Enohnyaket, Mathias. "PEEC modeling and verification for broadband analysis of air-core reactors." Licentiate thesis, Luleå : Luleå University of Technology, 2007. http://epubl.ltu.se/1402-1757/2007/51/.

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Goukenleuque, Cédric. "Atmosphère des planètes extrasolaires géantes : un modèle d'équilibre radiatif." Phd thesis, Université Pierre et Marie Curie - Paris VI, 1999. http://tel.archives-ouvertes.fr/tel-00009725.

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Les observations directes, notamment spectroscopiques, permettront de déterminer la nature et la composition chimique de l'atmosphère des "Jupiter chauds", mais il est essentiel d'élaborer préliminairement un modèle atmosphérique théorique dans le but de contraindre les techniques d'observation. Dans cette optique, nous avons développé un modèle d'équilibre radiatif adapté aux planètes extrasolaires de type jovien, chauffées par leur étoile centrale. La modélisation fournit la détermination de la structure thermique moyenne, mais aussi le spectre réfléchi et le spectre d'émission thermique pou
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Le, Renard Amélie. "Styles de vie citadins, réinvention des féminités : une sociologie politique de l'accès aux espaces publics des jeunes Saoudiennes à Riyad." Paris, Institut d'études politiques, 2009. http://buadistant.univ-angers.fr/login?url=https://www.dalloz-bibliotheque.fr/pvurl.php?r=http%3A%2F%2Fdallozbndpro-pvgpsla.dalloz-bibliotheque.fr%2Ffr%2Fpvpage2.asp%3Fpuc%3D5442%26nu%3D51.

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Fondée sur une enquête ethnographique à Riyad, cette thèse montre comment les jeunes Saoudiennes, confrontées à de multiples contraintes limitant leur mobilité et leurs activités, négocient de nouveaux styles de vie à travers leur accès à quatre types d’espaces (campus universitaire féminin, espaces de travail, shopping malls et espaces religieux). Ce processus trace parmi elles de nouvelles lignes d’inclusion et d’exclusion et les soumet à d’autres normes. La première partie retrace l’émergence de ces espaces à travers la ségrégation des sexes entérinée au moment du Réveil islamique et du boo
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Books on the topic "PEC 51"

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Filigrana M, Diego. Instalaciones agrarias representativas: Descripción y especificaciones. Programa Editorial Universidad del Valle, 2006. http://dx.doi.org/10.25100/peu.51.

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Ward, Timothy J., Bobby Kenney, and Brandon Whelan. Missing the Mark: 51+ Reasons Why Men Pee the Seat. Createspace Independent Publishing Platform, 2017.

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Leuchter, Mark. The Levite Scribes, Part 2. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780190665098.003.0008.

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The Jeremiah tradition extends the Deuteronomistic project, presenting scribes as the levitical bearers of Jeremiah’s prophetic teachings. This is rooted in Jeremiah’s own Levite heritage, alongside strong indications that he was enculturated in Deuteronomistic scribalism. What is implicit in Deuteronomy is made explicit in Jeremiah vis-à-vis the scribal transmission process and the relationship between Levite scribes and revelation: Jeremiah 36 and 51:59–64a are especially significant in fleshing out the intimate and even genetic relationship between the potency of YHWH’s divine word and the
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Majumdar, Sumit K. Prologue. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199641994.003.0001.

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The chapter summarizes the story’s conceptualization and contextualization. India was once the largest economy on earth. Contemporaneously, it accounts for a trivial portion of the world’s economy. Achieving higher growth is important, as India, one of the world’s largest countries, cannot remain marginalized. Per-capita growth enhancements lead to poverty declines. Understanding growth requires an understanding of capitalism dynamics. Growth is the outcome of capitalism, which is the process of capital organization and utilization. Efficiency is the pivot around which growth revolves, and I d
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Appelbaum, Kenneth L. Self-injurious behaviors. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199360574.003.0049.

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One of the most challenging management challenges in correctional settings is self-injurious behavior (SIB). Often, the motivations, demographics, and characteristics are distinct from SIB found in the community. In community samples, about 4% of adults report a history of SIB with no significant gender differences in rate. Despite its serious consequences in jails and prisons, reliable data on self-injury in those settings remains sparse. A survey of the 51 state and federal directors of correctional mental health services in the United States found that less than 2% of inmates per year self-
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van Spanje, Joost, and Rachid Azrout. Prosecuting Politicians for Hate Speech and the Consequences for Democracy. Oxford University PressOxford, 2025. https://doi.org/10.1093/9780198951254.001.0001.

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Abstract This book is about hate speech trials of politicians, and its effects on citizens. First, it maps 51 cases against 42 political leaders in nine countries since 1965. These leaders include, for instance, Marine Le Pen in France and Geert Wilders in the Netherlands. After that, it theorizes about, and empirically assesses, four effects of these cases: effects on hate crime incidence, on the electoral support for the far right, on democratic support, and on legal system support. Based partly on pre-existing data and partly data we have collected ourselves, it empirically demonstrates und
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Book chapters on the topic "PEC 51"

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Wong, Ching Yee Oliver, and Dafang Wu. "Case 51: Wax-and-Wane Metabolic Activities of Low-Grade Lymphoma." In Phenotypic Oncology PET. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-09737-9_51.

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Koo, Phillip J., Frederick D. Grant, and S. Ted Treves. "Case 51." In Nuclear Medicine and PET/CT Cases. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199773695.003.0051.

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"Naissance de deux du Saint-Sepulcre." In Dei gesta per Francos. Routledge, 2017. http://dx.doi.org/10.4324/9781315258287-51.

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Turpin, Zachary. "Whitman’s Secret Publications." In The Oxford Handbook of Walt Whitman. Oxford University Press, 2024. http://dx.doi.org/10.1093/oxfordhb/9780192894847.013.7.

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Abstract Since Walt Whitman’s death, his secret publications have come to light with surprising regularity; this chapter details the discovery of ten such publications, each of which Whitman covertly saw into print and seemingly reminded no one of afterward. Commonalities among these rediscovered works include their publication primarily in newsprint; their appearance anonymously or under pen names; their engagement with “un-Whitmanian” genres; and their discovery by way of manuscript and bibliographic evidence. Since new digital methodologies have begun enhancing researchers’ efficacy and ext
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"religious tenor of the times, which made the exertion of their authority easier? Certainly, some aspects of the religion of the Evangelical Revival made pecu-liarly possible the exercise of religious and moral authority by individuals who might not normally have aspired to such leadership. Evangelicalism stressed the religion of the individual at the expense of that dictated by the establishment – although the established clergy were nonetheless still recognized and respected as part of God’s ministry. But the Reformation emphasis on the individual’s faith, relationship with God and right to read and interpret scripture was renewed at this time. Educated women of high sta-tion were amongst those who could most easily take advantage of that renewal. Evangelical religion, moreover, was often described as a religion of the heart: highly emotive rather than rational or dogmatic. Such religion." In The Rise of the Laity in Evangelical Protestantism. Routledge, 2003. http://dx.doi.org/10.4324/9780203166505-51.

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Taber, Douglass F. "Carbon–Carbon Bond Construction." In Organic Synthesis. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190200794.003.0027.

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Carlo Siciliano and Angelo Liguori of the Università della Calabria showed (J. Org. Chem. 2012, 77, 10575) that an amino acid 1 could be both protected and activated with Fmoc-Cl, so subsequent exposure to diazomethane delivered the Fmoc-protected diazo ketone 2. Pei-Qiang Huang of Xiamen University activated (Angew. Chem. Int. Ed. 2012, 51, 8314) a secondary amide 3 with triflic anhydride, then added an alkyl Grignard reagent with CeCl3 to give an intermediate that was reduced to the amine 4. John C. Walton of the University of St. Andrews found (J. Am. Chem. Soc. 2012, 134, 13580) that under
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Feather, Leonard, and Ira Gitler. "v." In The Biographical Encyclopedia of Jazz. Oxford University PressNew York, NY, 1999. http://dx.doi.org/10.1093/oso/9780195074185.003.0022.

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Abstract VachÉ, warren webster jr., crnt, tpt, flg, pno; b. Rahway, NJ, 2/21/51. Father, Warren, is bs. and jazz writer; bro. Allan pl. cl., sax w. Jim Cullum band in Tex. Began on pno., then sw. to brass instr. in elem. sch. Stud. w. Jim Fitzpatrick, then at Montclair St. Coll.; w. Pee Wee Erwin 1970–80. First gigs in N.J. w. father. Pl. w. NYJRC at Carnegie Hall, recreating solos of Bix Beiderbecke ’75; Benny Goodman off and on ’75–85; house band at Eddie Condon’s ’76–9; Scott Hamilton fr. ’76; Concord Super Band ’79–82; Concord All-Stars fr. ’79; Geo. Wein’s Festival All-Stars fr. ’84. Play
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Taber, Douglass F. "Alkaloid Synthesis: (+)-Deoxoprosopinine (Krishna), Alkaloid (–)-205B (Micalizio), FR901483 (Huang), (+)-Ibophyllidine (Kwon), (–)-Lycoposerramine-S (Fukuyama), (±)-Crinine (Lautens)." In Organic Synthesis. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190200794.003.0060.

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Palakodety Radha Krishna of the Indian Institute of Chemical Technology observed (Synlett 2012, 2814) high stereocontrol in the addition of allyltrimethylsilane to the cyclic imine derived from 1. The product piperidine 2 was carried onto (+)-deoxoprosopinine 3. Glenn C. Micalizio of Scripps Florida condensed (J. Am. Chem. Soc. 2012, 134, 15237) the amine 4 with 5. The ensuing intramolecular dipolar cycloaddition led to 6, which was carried onto the Dendrobates alkaloid (–)-205B 7. Pei-Qiang Huang of Xiamen University showed (Org. Lett. 2012, 14, 4834) that the quaternary center of 9 could be
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Taber, Douglass F. "Advances in Organic Functional Group Transformation." In Organic Synthesis. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199965724.003.0006.

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There have been several significant advances in N-alkylation using alcohols. Matthias Beller of Universität Rostock devised (Angew. Chem. Int. Ed. 2010, 49, 8126) a Ru catalyst for the amination of secondary and benzylic primary alcohols with ammonia. Dieter Vogt of the Eindhoven University of Technology reported (Angew. Chem. Int. Ed. 2010, 49, 8130) related transformations. Pei-Qiang Huang of Xiamen University showed (Chem. Commun. 2010, 46, 7834) that debenzylation of 3 in methanol led to the N-methyl amine 4. Parallel results have been reported with Ir (J. Am. Chem. Soc. 2010, 132, 15108),
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Rao, A. S., and Vijendra K. Boken. "Monitoring and Managing Agricultural Drought in India." In Monitoring and Predicting Agricultural Drought. Oxford University Press, 2005. http://dx.doi.org/10.1093/oso/9780195162349.003.0034.

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Agriculture is the mainstay of more than 70% of India’s more than 1 billion population. Indian agriculture is predominantly rain-fed and depends on the spatial and temporal distribution of rains from southwest (June– September) and northeast (October–December) monsoons. A monsoon refers to seasonal alteration of atmospheric flow. The Indian subcontinent is predominantly characterized by a tropical monsoon climate, where climatic regimes are governed by rainfall rather than by temperature. The southwest monsoon accounts for 70–90% of the annual rainfall. The Technical Committee on Drought Prone
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Conference papers on the topic "PEC 51"

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Khujadze, Nodar, and Lia Matchavarian. "A COMPARATIVE STUDY OF CARBON SEQUESTRATION IN DIFFERENT TYPES OF FOREST." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/3.1/s14.40.

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This study aimed to investigate carbon storage dynamics in pure pine, oak, and mixed forests within a one-hectare area. Tree samples were collected to measure their weight, size, and density. Each type of forest was estimated how much carbon is hold per hectare. The findings revealed significant differences in carbon storage capacities among them. Pure oak forests emerged as the top carbon reservoirs, with 57% of their trees' mass comprising carbon. Pure pine forests followed closely with 51% carbon storage. Interestingly, mixed forests, hosting both pine and oak trees, exhibited a considerabl
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Bhatia, Arti, and Stephen Westwood. "Developing a Baseline Inline Inspection Program with Design and Operational Decisions on the Use of a High Resolution Magnetic Flux Leakage Tool." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03172.

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Abstract The Alliance Pipeline System consists of four system sections known as the Canadian Interconnect Pipeline System, Canadian Lateral Pipeline System, Canadian and US Mainline Pipeline System, and US Delivery Pipeline System. The Canadian portion of the system consists of 339 km (211 miles) of 1067 mm (42 inch) and 1220 km (758 miles) of 914 mm (36 inch) diameter steel pipe. The United States portion of the system consists of 888 miles (1429 km) of 36 inch (914 mm) diameter steel pipe. The 36 inch mainline section from Windfall, Alberta to the Aux Sable Meter Station in Illinois has an o
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Davletshina, L. S. "TASKS AND ASPECTS OF PEA BREEDING." In Международная студенческая научно-практическая конференция "Наука. Образование. Профессия". Башкирский государственный аграрный университет, 2022. http://dx.doi.org/10.31563/9785745607950-2022-51-53.

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Soman, Abhimanyu, Lorenzo Cocchi, Mallikarjuna Peddi, Nikunj Avaiya, Ravindra Devi, and Babu Santhana Gopalakrishnan. "Performance Enhancement Kit for Frame 51 Machine With DLN Combustor." In ASME 2023 Gas Turbine India Conference. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/gtindia2023-118365.

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Abstract A Performance Enhancement Kit (PEK) is introduced to infuse the latest technology to MS5001PA fleet there-by existing customers benefit from increased output, extended inspection intervals, improved reliability, and operability. The kit includes advanced-technology combustion system with improved design of hot gas path (HGP) components. The components in the KIT are designed for either enhanced output of 6% or for an increased interval between repairs or increased ‘Mean Time Between Maintenance’ (MTBM) from 24khrs to 35khrs. Initially PEK was introduced as part of MS5001PA in 2016 for
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Webb, Esther, Tracey Taylor, Lorna Richardson, and Sarah Stanley. "51 Introduction of the role of assistant practitioner in a palliative care setting." In Accepted Oral and Poster Abstract Submissions, The Palliative Care Congress 1 Specialty: 3 Settings – home, hospice, hospital 25 – 26 March 2021 | A virtual event, hosted by Make it Edinburgh Live, the Edinburgh International Conference Centre’s hybrid event platform. British Medical Journal Publishing Group, 2021. http://dx.doi.org/10.1136/spcare-2021-pcc.69.

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Clarke, Karen L. "51 Rehabilitative palliative care as a health promoting approach: a participatory action research study." In Accepted Oral and Poster Abstract Submissions, The Palliative Care Congress 1 Specialty: 3 Settings – home, hospice, hospital 19–20 March 2020 | Telford International Centre. British Medical Journal Publishing Group, 2020. http://dx.doi.org/10.1136/spcare-2020-pcc.72.

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Wang, Jing, and Jun Liu. "PEI-Folic acid modified carbon nanodots for cancer cells targeted delivery and two-photon excitation imaging." In Cancer Imaging and Therapy. OSA, 2016. http://dx.doi.org/10.1364/cancer.2016.jm3a.51.

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"Prediction of the conductivity and compatibility of the selected ionic liquids (ILs) with Nafion™ using COSMO-RS." In Sustainable Processes and Clean Energy Transition. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902516-51.

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Abstract. Proton exchange membrane (PEM) electrolysis is one of the waters splitting techniques available for producing green hydrogen. As such, improvement of the membrane ion conductivity will result in improvement of hydrogen production. Ionic liquids have recently been reported to enhance ionic conductivity of PEM. Herein, a screening method to select suitable ionic liquids for the development of efficient proton exchange membrane. COnductor-like Screening MOdel for Realistic Solvents (COSMO-RS) was used to predict the ionic conductivity as well as the compatibility of the ions with the Na
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Sultanov, I. M., and S. A. Khaibrakhmanov. "Numerical MHD simulations of the molecular filament evolution." In 51-st All-Russian with international participation student scientific conference "Physics of Space". Ural University Press, 2024. http://dx.doi.org/10.15826/b978-5-7996-3848-1.69.

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We study evolution of cylindrical molecular clouds (filaments). We consider clouds without magnetic field and with parallel magnetic field. The cloud rapidly collapses along it’s radius without fragmentation in simulations with mass per unit length equal or great than the critical one. The radial collapse of the cloud is stopped by the pressure gradient in the simulations with linear mass that is less than the critical, and cores with high density form at the cloud’s edges during further evolution. Cores also form in simulations with parallel magnetic field. According to our results, the cores
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Urunova, R. M. "Determination of nutation angles based on processing hourly VLBI observations." In 51-st All-Russian with international participation student scientific conference "Physics of Space". Ural University Press, 2024. http://dx.doi.org/10.15826/b978-5-7996-3848-1.72.

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Over the past 9 years, the IAA RAS has conducted daily observations using the VLBI, with no fewer than six sessions per day. This has allowed exploring the potential for determining nutation angles based on these sessions a The data sessions were processed using a specialized software package developed at the institute, incorporating the global equalization. The results are compared with data from the International Earth Rotation and Reference Systems Service, as well as the annual results of global equalization obtained by the IAA RAS. The accuracy of correction determination depends on the n
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Reports on the topic "PEC 51"

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ศิวรังสรรค์, นภา, та สุดา เกียรติกำจรวงศ์. การตรึงเอนไซม์แอลคาไลน์โปรตีเอสบนบีดโพลิอะคริลาไมด์และโพลิ (อะคริลาไมด์-โค-กรดเมทาคริลิก) โดยวิธีอินเวิร์สซัสเพนชันโพลิเมอไรเซชัน : รายงานผลการวิจัย. จุฬาลงกรณ์มหาวิทยาลัย, 1997. https://doi.org/10.58837/chula.res.1997.18.

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แอลคาไลน์โปรตีเอสได้รับการตรึงบนบีดโพลิอะคริลาไมด์ระหว่างการทำโพลิเมอไรเซชันของโมโนเมอร์อะคริลาไมด์โดยวิธีอินเวิร์สซัสเพนชันโพลิเมอไรเซชัน, N,N'-methylene-bis-acrylamide (MBA), Pluronic PE 8100, และพาราฟินเหลว ใช้เป็นตัวเชื่อมขวาง เซอร์เฟคเตนต์ และวัฏภาคต่อเนื่อง ตามลำดับ แอมโมเนียเพอร์ซัลเฟต (APS) และ N,N,N',N'-tetraethylmethylenediamine (TEMED) ใช้เป็นตัวเริ่มปฏิกิริยาแบบรีดอกซ์ ได้ศึกษาผลของการเปลี่ยนแปลงความเข้มข้นของโมโนเมอร์ตัวเชื่อมขวาง เอนไซม์ ตัวเริ่มปฏิกิริยา ตัวเร่งปฏิกิริยา และเซอร์เฟคเตนต์ต่อฤทธิ์ของเอนไซม์ นอกจากนี้ยังได้ศึกษาผลของการเปลี่ยนแปลงอัตราการกวน เวลา และอุณหภูมิที่ใช้ส
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Datta, Sandip, and Geeta Kingdon. Class Size and Learning: Has India Spent Too Much on Reducing Class Size? Research on Improving Systems of Education (RISE), 2021. http://dx.doi.org/10.35489/bsg-rise-wp_2021/059.

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This paper examines the efficacy of class-size reductions as a strategy to improve pupils’ learning outcomes in India. It uses a credible identification strategy to address the endogeneity of class-size, by relating the difference in a student’s achievement score across subjects to the difference in his/her class size across subjects. Pupil fixed effects estimation shows a relationship between class size and student achievement which is roughly flat or non-decreasing for a large range of class sizes from 27 to 51, with a negative effect on learning outcomes occurring only after class size incr
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Delwiche, Michael, Yael Edan, and Yoav Sarig. An Inspection System for Sorting Fruit with Machine Vision. United States Department of Agriculture, 1996. http://dx.doi.org/10.32747/1996.7612831.bard.

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Concepts for real-time grading of fruits and vegetables were developed, including multi-spectral imaging with structured illumination to detect and distinguish surface defects from concavities. Based on these concepts, a single-lane conveyor and inspection system were designed and evaluated. Image processing algorithms were developed to inspect and grade large quasi-spherical fruits (peaches and apples) and smaller dried fruits (dates). Adjusting defect pixel thresholds to achieve a 25% error rate on good apples, classification errors for bruise, crack, and cut classes were 51%, 42%, and 46%,
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Bigorre, Sebastien P., and Raymond Graham. The Northwest Tropical Atlantic Station (NTAS): NTAS-20 Mooring Turnaround Cruise Report Cruise On Board RV Pisces November 4-28, 2021 Newport, RI - Pascagoula, MS. Woods Hole Oceanographic Institution, 2023. http://dx.doi.org/10.1575/1912/29647.

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The Northwest Tropical Atlantic Station (NTAS) was established to address the need for accurate air-sea flux estimates and upper ocean measurements in a region with strong sea surface temperature anomalies and the likelihood of significant local air–sea interaction on interannual to decadal timescales. The approach is to maintain a surface mooring outfitted for meteorological and oceanographic measurements at a site near 15°N, 51°W by successive mooring turnarounds. These observations are used to investigate air–sea interaction processes related to climate variability. The NTAS Ocean Reference
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Ward, Kimiora. Sierra Nevada Network white pine monitoring: 2022 annual report. National Park Service, 2023. http://dx.doi.org/10.36967/2301003.

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Five-needle white pines (Family Pinaceae, Genus Pinus, Subgenus Strobus), and in particular whitebark pine (Pinus albicaulis), limber pine (P. flexilis), and foxtail pine (P. balfouriana) are foundation species in upper subalpine and treeline forests of several National Park Service Pacific West Region parks, including Sequoia and Kings Canyon National Parks (SEKI) and Yosemite National Park (YOSE). The Sierra Nevada Network Inventory & Monitoring Program, in collaboration with the Klamath Network, Upper Columbia Basin Network, and Mojave Desert Network have implemented a joint long-term m
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Jalkanen, Jukka-Pekka, Erik Fridell, Jaakko Kukkonen, et al. Environmental impacts of exhaust gas cleaning systems in the Baltic Sea, North Sea, and the Mediterranean Sea area. Finnish Meteorological Institute, 2024. http://dx.doi.org/10.35614/isbn.9789523361898.

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Description: Shipping is responsible for a range of different pressures affecting air quality, climate, and the marine environment. Most social and economic analyses of shipping have focused on air pollution assessment and how shipping may impact climate change and human health. This risks that policies may be biased towards air pollution and climate change, whilst impacts on the marine environment are not as well known. One example is the sulfur regulation introduced in January 2020, which requires shipowners to use a compliant fuel with a sulfur content of 0.5% (0.1% in SECA regions) or use
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Unveiling the cost of internal displacement. Internal Displacement Monitoring Center (IDMC), 2021. http://dx.doi.org/10.55363/idmc.cipy2359.

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This report provides country-level estimates on the economic impact of displacement in 22 countries. To do this it uses IDMC’s original methodology. Internal displacement can have a destabilising effect on the lives of those forced to flee their homes, often with significant financial repercussions. It can limit the ability of internally displaced people (IDPs) to contribute to the economy and generate specific needs that must be paid for by the IDPs themselves, host communities, government agencies and the humanitarian sector. With nearly 51 million people living in internal displacement, and
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