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On the Effect of Modified Carbohydrates on the Size and Shape of Gold and Silver Nanostructures
No full textToprak, Muhammet S/0000-0001-5678-5298PubMed: 32708064Gold (Au) and silver (Ag) nanostructures have widespread utilization from biomedicine to materials science. Therefore, their synthesis with control of their morphology and surface chemistry have been among the hot topics over the last decades. Here, we introduce a new approach relying on sugar derivatives that work as reducing, stabilizing, and capping agents in the synthesis of Au and Ag nanostructures. These sugar derivatives are utilized alone and as mixture, resulting in spherical, spheroid, trigonal, polygonic, and star-like morphologies. The synthesis approach was further tested in the presence of acetate and dimethylamine as size- and shape-directing agents. With the use of transmission electron microscopy (TEM), selected area electron diffraction (SAED), x-ray diffraction (XRD), scanning electron microscopy (SEM), and ultraviolet-visible (UV-vis) absorption spectroscopy techniques, the particle size, shape, assembly, aggregation, and film formation characteristics were evaluated. NPs' attributes were shown to be tunable by manipulating the sugar ligand selection and sugar ligand/metal-ion ratio. For instance, with an imine side group and changing the sugar moiety from cellobiose to lactose, the morphology of the Ag nanoparticles (NPs) transformed from well dispersed cubic to rough and aggregated. The introduction of acetate and dimethylamine further extended the growth pattern and morphological properties of these NPs. As examples, L5 AS, G5AS, and S5AS ligands formed spherical or sheet-like structures when used alone, which upon the use of these additives transformed into larger multicore and rough NPs, revealing their significant effect on the NP morphology. Selected samples were tested for their stability against protein corona formation and ionic strength, where a high chemical stability and resistance to protein coating were observed. The findings show a promising, benign approach for the synthesis of shape- and size-directed Au and Ag nanostructures, along with a selection of the chemistry of carbohydrate-derivatives that can open new windows for their applications.Kastamonu UniversityKastamonu University [KU-BAP01/2018-33]This research was funded by Kastamonu University under the project number KU-BAP01/2018-33
Kentsel Alanda CBS Kullanarak Bisiklet Altyapısı Rota Planlaması: İzmir Örneği
No full textAs a case study about İzmir (the third biggest metropolitan city in Turkey), this paper focuses on how to determine bicycle routes in already developed built environments of densely populated cities. To do so, it identifies how to deploy certain geographic information system (GIS) tools for analyzing multilayered spatial data not only at the city but also at the neighborhood level. When interrelating multiple characteristics of majorly topography, land use and population with each other, the study deploys mainly the overlay analysis and also network analysis as complementary to each other respectively at the city level and the neighborhood level. The results confirms that the use of these GIS tools for analyzing socio-spatial data especially at multiple spatial scales can support policy-makers’ decision-makings about route choices in the immediate future of their city even in a “data-poor” context,” such as Turkey.İzmir (Türkiye'nin üçüncü büyük metropol kenti) hakkında bir örnek olay incelemesi olarak gelişen bu makale, yoğun nüfuslu şehirlerin hali hazırda gelişmiş yapılı çevrelerinde, bisiklet rotalarının nasıl belirleneceğine odaklanmaktadır. Bunu yapmak için, sadece şehirde değil mahalle düzeyinde çok katmanlı mekansal verilerin analizi için, birtakım coğrafi bilgi sistemi (GIS) araçlarının nasıl kullanılacağını açıklamaktadır. Çalışma, büyük ölçüde topoğrafya, arazi kullanımı ve nüfusun özelliklerini birbirleriyle ilişkilendirirken, temel olarak şehir düzeyinde çakıştırma (overlay) analizi ve ve mahalle düzeyinde tamamlayacı olarak ağ analizini uygular. Sonuçlar, bu CBS araçlarının Türkiye gibi “veri yetersiz” bağlamlarda, sosyo-mekansal verileri çoklu mekansal ölçeklerde analiz etmek için kullanılmasının, mekansal politika üretiminde, özellikle ulaşım-rota planlaması konusunda, destekleyici mekanizmalar olduğunu doğrulamaktadı
Nörominidaz 1 ve N-asetilgalaktosaminiltransferaz enzimlerinin glikolipit metabolizmasındaki birleşik biyolojik rolünün araştırılması
No full textThesis (Master)--Izmir Institute of Technology, Molecular Biology and Genetics, Izmir, 2020Includes bibliographical references (leaves: 110-120)Text in English; Abstract: Turkish and EnglishGangliosides, sialic acid-containing glycosphingolipids, are responsible for neurogenesis and synaptogenesis which are essential for vertebrate nervous system. N-Acetylgalactosaminyltransferase (Galgt) is glycosyltransferase that plays essential role during complex gangliosides biosynthesis. Expression of Galgt increases at the late stage of development which can be evidence for complex gangliosides role in nervous system development and differentiation.Sialidases are responsible enzymes for sialic acid removal from glycoproteins, glycolipids or oligosaccharides. Neu1 is one of the mammalian sialidase which catabolizes sialoglycoconjugates in lysosomes. Neu1 gene mutations in human result in lysosomal storage disease called sialidosis. Created Neu1 knockout mice model have demonstrated similar symptoms with sialidosis type II. In sialidosis patients, increased ganglioside levels are detected in visceral organs but not in brain. In vitro studies have demonstrated that GM3 is a substrate of Neu1. Until this research, role of Neu1 enzyme on glycosphingolipid metabolism in the absence of complex gangliosides has not been investigated. Therefore this study have been provided comparision of 2-and 4-month-old Neu1-/-, Galgt-/- and Neu1-/-Galgt-/- mice to WT mice and each other by molecular biological, biochemical, histological, immunohistochemical and behavioral analysis in cortex, cerebellum and thalamus regions. In the concept of this thesis, we found effect of single and double deficienct of Neu1 and Galgt enzymes on the distinct cellular events (apoptosis, ER stress, oxidative stress), altered glycolipid and oligosaccharide metabolism, nerve cell death,oligodendrocyte intensity decrease, impairment in locomotor activity, motor coordination, memory capability as age dependent and region specific manner.Gangliositler (sialik asit içeren glikosfingolipitler), omurgalı sinir sisteminin nöron ve sinaps gelişim sürecinden sorumlu olan temel bileşiklerdendir. . N-Asetilgalaktozaminiltransferaz (Galgt), karmaşık gangliosit biyosentezi boyunca önemli rol oynayan bir glikoziltransferaz enzimidir. Galgt ifade düzeyi, gelişimin son evrelerinde artış gösterir, bu durum karmaşık gangliositlerin sinir sisteminin gelişmesi ve farklılaşmasındaki rolünün bir kanıtı olabilir. Sialidazlar, glikoproteinlerden, glikolipitlerden veya oligosakkaritlerden sialik asit uzaklaştırılmasından sorumlu enzimlerdir. Neu11 memeli sialidazlarından biri olup, lizozomlarda sialoglikokonjugatları katabolize eder. İnsanda Neu1 genindekı mutasyonlar lizozomal depo hastalığı olan sialidoza sebep olur. Yaratılan Neu1 gen eksikliğine sahip fareler, sialidoz tip II ile benzer semptomlar göstermiştir. Sialidoz hastalarının iç organlarında gangliosit artışı görülürken, aynı artış beyinde görülmemiştir. In vitro çalışmalar GM3'ün bir Neu1 substratı olduğunu göstermiştir. Bu araştırmaya kadar, kompleks gangliositlerin yokluğu durumda Neu1 enziminin glikosfingolipid metabolizması üzerindeki rolü araştırılmamıştır. Bu nedenle, bu çalışma 2 ve 4 aylık Neu1 - / -, Galgt - / - ve Neu1 - / - Galgt - / - farelerinin WT fareleri ve birbirleriyle korteks, beyincik ve talamus bölge bazlı, moleküler biyolojik, biyokimyasal, histolojik, immünohistokimyasal ve davranışsal olarak karşılaştırılması sağlanmıştır. Bu tez kapsamında, Neu1 ve Galgt enzimlerinin tek ve çift eksikliğinin farklı hücresel olaylarda (apoptoz, ER stresi, oksidatif stres), değişen glikolipit ve oligosakkarit metabolizmasında, sinir hücresi ölümünde, oligodendrosit yoğunluğunun azalmasında, lokomotor aktivite,motor koordinasyon ve hafıza kapasitesi üzerindeki etkisi yaşa ve beyin bölgelerine bağlı olarak bulunmuştur.TUBITAK (KBAG/117Z259
Fonksiyonel boya malzemeleri ve grafin alan etkitransistörleri kullanan fotodedektörlerin araştırılması
No full textThesis (Master)--Izmir Institute of Technology, Photonics, Izmir, 2020Includes bibliographical references (leaves: 30-38)Text in English; Abstract: Turkish and EnglishA J-aggregate dye is a type of water-soluble, functional dye, which has a sharp and narrow absorption peak after it self-assembles into a brick-wall structure at high concentrations. The absorption peak of the J-aggregates is sharp, narrow and shifted to longer wavelengths compared to their monomer form and it is in the visible or near infrared spectrum. Due to its very sharp and narrow absorption, it has been used in silver halide photography, non-linear optics, lasing and sensing applications. On the other hand, graphene is one atom layer thick, honeycomb lattice of carbon atoms. In the pure, freestanding form, the bands of its electronic structure touch at one point, making it a gapless semimetal. Due to this characteristic, it is possible to manipulate its optical and electronic properties by changing the Fermi energy of graphene. Therefore, graphene found applications in many fields such as light emitting diodes, photodetectors, Hall sensors, optical modulators and flexible optoelectronics. The functional dye materials have not been combined with graphene photodetectors even though they are highly sensitive to light, less toxic than their competitors and stable at room temperature. In this thesis, using a J-aggregate dye, which has a sharp absorption peak around 585 nm wavelength, a graphene phototransistor has been demonstrated. By changing the charge concentration on graphene, using the charge carriers that arise from the excitation of J-aggregate dye, reversible modulation of graphene Dirac point has been demonstrated. In addition, a novel thin film formation technique has been developed in this study. Porous polyethylene membrane has been used to create thin films of water-soluble materials, such as J-aggregates, on hydrophobic surfaces.J-agrega boya, yüksek yoğunluklarda bir tuğla duvar yapısına kendiliğinden birleştikten sonra keskin ve dar bir soğurma spektrumu tepe noktasına sahip olan, suda çözünür, fonksiyonel bir boya türüdür. J-agregalarının soğurma tepe noktası keskin, dar ve monomer formlarına kıyasla daha uzun dalga boylarına kaymış durumdadır. Bu nokta, görünür veya yakın kızılötesi spektrumda bulunur. Çok keskin ve dar soğurması nedeniyle gümüş halid fotoğrafçılığında, doğrusal olmayan optikte, lazerle ve algılama uygulamalarında kullanıldı. Öte yandan grafin, bir atom tabakası kalınlığında, karbon atomlarından oluşan bal peteği benzeri bir yapıdadır. Saf, bağımsız formda, elektronik yapısının bantları bir noktada dokunarak enerji bant yapısından boşluk bulunmayan bir semimetal oluşturur. Elektronik yapısı nedeniyle, yük taşıyıcı yoğunluğunu değiştirerek grafinin Fermi enerjisini değiştirmek, optik ve elektronik özelliklerini manipüle etmek mümkündür. Grafinin benzersiz özellikleri, ışık yayan diyotlar, fotodetektörler, Hall algılayacıları, optik modülatörler ve esnek optoelektronik gibi birçok alanda uygulama buldu. Fonksiyonel boya malzemeleri rakiplerinden daha az zehirli olmalarına ve oda koşullarında kararlı olmalarına rağmen grafin ile ortak bir yapıda kullanılmamıştır. Bu tezde, 600 nanometre dalga boyunda keskin bir soğurma spektrumu tepe noktasına sahip olan bir J-agrega boya kullanılarak, bir grafin fototransistörü ve grafinin spektral hassasiyeti arttırılmıştır. Işık kullanılarak grafin üzerindeki yük yoğunluğu değiştirilmiş, enerji bandı yapısındaki Dirac noktasında geri çevrilebilir bir modülasyon gösterilmiştir. Ayrıca, bu çalışmada yeni bir ince film oluşturma tekniği geliştirilmiştir. Gözenekli polietilen membran, hidrofobik yüzeyler üzerinde J-agregaları gibi suda çözünür malzemelerin ince filmlerini oluşturmak için kullanılmıştır.TUBIAK (117F172
Search for resonant pair production of Higgs bosons in the bbZZ channel in proton-proton collisions at √s=13 TeV
No full textA search for the production of a narrow-width resonance decaying into a pair of Higgs bosons decaying into the bbZZ channel is presented. The analysis is based on data collected with the CMS detector during 2016, in proton-proton collisions at the LHC, corresponding to an integrated luminosity of 35.9 fb(-1). The final states considered are the ones where one of the Z bosons decays into a pair of muons or electrons, and the other Z boson decays to either a pair of quarks or a pair of neutrinos. Upper limits at 95% confidence level are placed on the production of narrow-width spin-0 or spin-2 particles decaying to a pair of Higgs bosons, in models with and without an extended Higgs sector. For a resonance mass range between 260 and 1000 GeV, limits on the production cross section times branching fraction of a spin-0 and spin-2 resonance range from 0.1 to 5.0 pb and 0.1 to 3.6 pb, respectively. These results set limits in parameter space in bulk Randall-Sundrum radion, Kaluza-Klein excitation of the graviton, and next-to-minimal two-Higgs doublet models (N2HDMs). For specific choices of parameters the N2HDM can be excluded in a mass range between 360 and 620 GeV for a resonance decaying to two Higgs bosons. This is the first search for Higgs boson resonant pair production in the bbZZ channel
Measurements of (tt)over-barH Production and the CP Structure of the Yukawa Interaction between the Higgs Boson and Top Quark in the Diphoton Decay Channel
No full textCAKIR, Altan/0000-0002-8627-7689; de Souza Sandro, Fonseca/0000-0001-7830-0837; Demiroglu, Zuhal Seyma/0000-0001-7977-7127; Meridiani, Paolo/0000-0002-8480-2259; Di Florio, Adriano/0000-0003-3719-8041; Loukas, Dimitris/0000-0002-7431-3857; Goh, Junghwan/0000-0002-1129-2083; Danilov, Mikhail/0000-0001-9227-5164; Demiroglu, Zuhal Seyma/0000-0001-7977-7127; Obertino, Maria Margherita/0000-0002-8781-8192; Iglesias, Maria Cruz Fouz/0000-0003-2950-976X; Yzquierdo, Antonio Perez-Calero/0000-0003-3036-7965; Minafra, Nicola/0000-0003-4002-1888; TOPAKSU, Aysel KAYIS/0000-0001-5819-6913; Guler, Y./0000-0001-7598-5252; Veckalns, Viesturs/0000-0003-3676-9711; Steggemann, Jan/0000-0003-4420-5510; De La Cruz, Ivan Heredia/0000-0002-8133-6467; Ivanchenko, Vladimir N/0000-0002-1844-5433; Cuevas-Maestro, Francisco Javier/0000-0001-5080-0821; Habibullah, Redwan/0000-0002-3161-8300; Da Silveira, Gustavo Gil/0000-0003-3514-7056; Gonzalez, Barbara Alvarez/0000-0001-7767-4810; Ricca, Giuseppe Della/0000-0003-2831-6982; Blekman, Freya/0000-0002-7366-7098; Duarte, Javier/0000-0002-5076-7096; Tiras, Emrah/0000-0002-5628-7464; Lopez, Oscar Gonzalez/0000-0002-4532-6464; Wulz, Claudia-Elisabeth E/0000-0001-9226-5812; Malawski, Maciej/0000-0001-6005-0243; Tcherniaev, Evgueni/0000-0002-3685-0635; Andreev, Vladimir F/0000-0002-5492-6920; Calligaris, Luigi/0000-0002-9951-9448; Bartosik, Nazar/0000-0002-7196-2237; Fallavollita, Francesco/0000-0003-2315-2499; Ferencek, Dinko/0000-0001-9116-1202; Yazgan, Efe/0000-0001-5732-7950; Bagliesi, Giuseppe/0000-0003-4298-1620; Cortezon, Jose Enrique Palencia/0000-0001-8264-0287; Ligabue, Franco/0000-0002-1549-7107; Lezki, Samet/0000-0002-6909-774X; Battilana, Carlo/0000-0002-3753-3068; Bortignon, Pierluigi/0000-0002-5360-1454; Terkulov, Adel/0000-0003-4985-3226; Ivanchenko, Vladimir/0000-0002-1844-5433; De Guio, Federico/0000-0001-5927-8865; Gokbulut, Gul/0000-0002-0175-6454; Stahl, Achim/0000-0002-8369-7506; Polikarpov, Sergey/0000-0001-6839-928X; Arneodo, Michele/0000-0002-7790-7132; Dudko, Lev/0000-0002-4462-3192; Azarkin, Maxim/0000-0002-7448-1447; Sagir, Sinan/0000-0002-2614-5860; Diaz, Daniel/0000-0001-6834-1176; Moran, Dermot/0000-0002-1941-9333; Botta, Cristina/0000-0002-8072-795X; Reis, Thomas/0000-0003-3703-6624; Consuegra Rodriguez, Sandra/0000-0002-1383-1837; Zenz, Seth/0000-0002-9720-1794; Carrillo Montoya, Camilo/0000-0002-6245-6535; Robert, Schoefbeck/0000-0002-2332-8784; Delaere, Christophe/0000-0001-8707-6021; Sanchez-Hernandez, Alberto/0000-0001-9548-0358; Lucchini, Marco Toliman/0000-0002-7497-7450; Mitra, Soureek/0000-0002-3060-2278; Schulte, Jan-Frederik/0000-0003-4421-680X; Pieri, Marco/0000-0003-3303-6301; Nguyen, Thong Q./0000-0003-3954-5131; Gomez, Gervasio/0000-0002-1077-6553; Zorbakir, Ibrahim Soner/0000-0002-5962-2221; Canelli, Florencia/0000-0001-6361-2117; Manca, Elisabetta/0000-0001-8946-655X; Novaes, Sergio/0000-0003-0471-8549; Lawhorn, Jay/0000-0002-8597-9259; Van Onsem, Gerrit/0000-0002-1664-2337; Mousa, Jehad/0000-0002-2978-2718; Navarro-Tobar, Alvaro/0000-0003-3606-1780; d'Enterria, David/0000-0002-5754-4303; Ruiz, Jose/0000-0002-3306-0363; Gozzelino, Andrea/0000-0002-6284-1126; Schroder, Matthias/0000-0001-8058-9828; Giammanco, Andrea/0000-0001-9640-8294; Felcini, Marta/0000-0002-2051-9331; Fernandez Bedoya, Cristina/0000-0001-8057-9152; Azzi, Patrizia/0000-0002-3129-828X; Alverson, George/0000-0001-6651-1178; Lo Meo, Sergio/0000-0003-3249-9208; Bloom, Kenneth/0000-0002-4272-8900; Belforte, Stefano/0000-0001-8443-4460; Tuominen, Eija/0000-0002-7073-7767; Lampen, Tapio/0000-0002-8398-4249; Lange, Johannes/0000-0001-7513-6330; Ricci-Tam, Francesca/0000-0001-9750-7702; Dharmaraatna, Welathantri/0000-0002-6366-837X; Tavolaro, Vittorio Raoul/0000-0003-2518-7521; Gerosa, Raffaele/0000-0001-8359-3734; Chauhan, Shubhanshu/0000-0002-6544-5794; Raidal, Martti/0000-0001-7040-9491; Petrucciani, Giovanni/0000-0003-0889-4726; Sharma, Varun/0000-0003-1287-1471; Sosa Ricardo, Rafael Eduardo/0000-0002-2240-6699; Giacomelli, Paolo/0000-0002-6368-7220; ALCARAZ MAESTRE, JUAN/0000-0003-0914-7474; Paulini, Manfred/0000-0002-6714-5787; Collard, Caroline/0000-0002-5230-8387; Gandrajula, Reddy Pratap/0000-0001-9053-3182; Popov, Andrey/0000-0002-1207-0984; Hurtado Anampa, Kenyi/0000-0002-9779-3566; Garcia, Francisco/0000-0002-4023-7964; Tholen, Heiner/0000-0002-2299-2421; Belloni, Alberto/0000-0002-1727-656X; Klanner, Robert/0000-0002-7004-9227; Kirschenmann, Henning/0000-0001-7369-2536; Osterberg, Kenneth/0000-0003-4807-0414; Wilson, Graham/0000-0003-0917-4763; Hall, Geoffrey/0000-0002-6299-8385; Zuolo, Davide/0000-0003-3072-1020; Vischia, Pietro/0000-0002-7088-8557; Goldstein, Joel/0000-0003-1591-6014; Kothekar, Kunal/0000-0001-5102-4326; Usai, Emanuele/0000-0001-9323-2107; Tapper, Alexander/0000-0003-4543-864X; Dominguez, Aaron/0000-0002-7420-5493; Amendola, Chiara/0000-0002-4359-836X; Dragicevic, Marko/0000-0003-1967-6783; Ince Lezki, Merve/0000-0001-6907-0195; Alves, Gilvan/0000-0002-8369-1446; Feld, Lutz/0000-0001-9813-8646; Hamel de Monchenault, Gautier/0000-0002-3872-3592; Tosi, Nicolo/0000-0002-0474-0247; Monaco, Vincenzo/0000-0002-3617-2432; Vilela Pereira, Antonio/0000-0003-3177-4626; Benitez, Jose Feliciano/0000-0002-2633-6712; Verweij, Marta/0000-0002-1504-3420; Krikler, Benjamin/0000-0001-9712-0030; Sanchez Navas, Sergio/0000-0001-6129-9059; Moon, Chang-Seong/0000-0001-8229-7829; FORD, WILLIAM/0000-0001-8703-6943; Arcidiacono, Roberta/0000-0001-5904-142X; Soares, Mara/0000-0001-9676-6059; Moraes, Arthur/0000-0002-5157-5686; Fiorendi, Sara/0000-0003-3273-9419; Cadamuro, Luca/0000-0001-8789-610X; Cavallari, Francesca/0000-0002-1061-3877; Harb, Ali/0000-0001-5750-3889; Ruiz Jimeno, Alberto/0000-0002-3639-0368; Tinoco Mendes, Andre David/0000-0001-5854-7699; Joshi, Yagya/0000-0002-0651-1878; Wardle, Nicholas/0000-0003-1344-3356; Kyberd, Paul/0000-0002-7353-7090; Kim, Tae Jeong/0000-0001-8336-2434; Tully, Christopher/0000-0001-6771-2174; Belyaev, Alexander/0000-0002-1733-4408; Pantaleo, Felice/0000-0003-3266-4357; Dubinin, Mikhail/0000-0002-7766-7175; Backhaus, Malte/0000-0002-5888-2304; Costa, Salvatore/0000-0001-9919-0569; CUFFIANI, Marco/0000-0003-2510-5039; Akgun, Bora/0000-0001-8888-3562; Bartok, Marton/0000-0002-4440-2701; Androsov, Konstantin/0000-0003-2694-6542; Gershtein, Yuri/0000-0002-4871-5449; Li, Qiang/0000-0002-8290-0517; Gonzalez Caballero, Isidro/0000-0002-8087-3199; Krolikowski, Jan/0000-0002-3055-0236; Snoeys, Walter/0000-0003-3541-9066; Beaudette, Florian/0000-0002-1194-8556; Vartak, Adish/0000-0003-1507-1365; Conway, John/0000-0003-2719-5779; Martelli, Arabella/0000-0003-3530-2255; Waltenberger, Wolfgang/0000-0002-6215-7228; Marzocchi, Badder/0000-0001-6687-6214; Martinez Ruiz del Arbol, Pablo/0000-0002-7737-5121; Alexakhin, Vadim/0000-0002-4886-1569; Leonardo, Nuno/0000-0002-9746-4594; Garutti, Erika/0000-0003-0634-5539; Frankenthal, Andre/0000-0002-2583-5982; Kreczko, Luke/0000-0003-2341-8330; Kim, Minsuk/0000-0003-0392-8691; Pastrone, Nadia/0000-0001-7291-1979; Bernardes, Cesar Augusto/0000-0001-5790-9563; Fernandez Ramos, Juan Pablo/0000-0002-0122-313X; Kasemann, Matthias/0000-0002-0429-2448; Konecki, Marcin/0000-0001-9482-4841; Shevchenko, Rostyslav/0000-0002-3236-4090; Caputo, Claudio/0000-0001-7522-4808; Csanad, Mate/0000-0002-3154-6925; Mnich, Joachim/0000-0001-7242-8426; Ulrich, Ralf/0000-0002-2535-402X; Goy Lopez, Silvia/0000-0001-6508-5090; Naimuddin, Md/0000-0003-4542-386X; Vami, Tamas Almos/0000-0002-0959-9211; Schonenberger, Myriam/0000-0002-6508-5776; Ghosh, Saranya/0000-0001-6717-0803; Grohsjean, Alexander/0000-0003-0748-8494; Gutsche, Oliver/0000-0002-8015-9622; Tonelli, Guido Emilio/0000-0003-2606-9156; Saka, Halil/0000-0001-7616-2573; Krintiras, Georgios Konstantinos/0000-0002-0380-7577; Abbiendi, Giovanni/0000-0003-4499-7562; Wu, Zhenbin/0000-0003-2165-9501; Puerta Pelayo, Jesus/0000-0001-7390-1457; Blumenfeld, Barry/0000-0003-1150-1735; Viliani, Lorenzo/0000-0002-1909-6343; Sciacca, Crisostomo/0000-0002-8412-4072; Haddad, Yacine/0000-0003-4916-7752; Krammer, Manfred/0000-0003-2257-7751; Kole, Gouranga/0000-0002-3285-1497; Benato, Lisa/0000-0001-5135-7489; Heath, Helen/0000-0001-6576-9740; Redondo, Ignacio/0000-0003-3737-4121; Mrenna, Stephen/0000-0001-8731-160X; Sharma, Ram Krishna/0000-0003-1181-1426; Khvedelidze, Arsen/0000-0002-5953-0140; Rabbertz, Klaus/0000-0001-7040-9846; Wang, Dayong/0000-0002-9013-1199; Faccioli, Pietro/0000-0003-1849-6692; Golf, Frank/0000-0003-3567-9351; lee, jason/0000-0002-2153-1519; Zevi Della Porta, Giovanni/0000-0003-0495-6061; Ecklund, Karl/0000-0002-6976-4637; Lange, Clemens/0000-0002-3632-3157; Ivanov, Andrew/0000-0002-9270-5643; Rappoccio, Salvatore/0000-0002-5449-2560; Shopova, Mariana/0000-0001-6664-2493; Rossi, Biagio/0000-0002-0807-8772; Trevisani, Nicolo/0000-0002-5223-9342; Mora Herrera, Maria Clemencia/0000-0003-3915-3170; Dallavalle, Gaetano Marco/0000-0002-8614-0420; Starling, Elizabeth/0000-0002-4399-7213; Padula, Sandra S./0000-0003-3071-0559; Klein, Daniel/0000-0001-9143-5162; Kratschmer, Ilse/0000-0002-5636-9259; Bodek, Arie/0000-0003-0409-0341; Forthomme, Laurent/0000-0002-3302-336X; Poudyal, Nabin/0000-0003-4278-3464; Cassese, Antonio/0000-0003-3010-4516; Chapon, Emilien/0000-0001-6968-9828; Piperov, Stefan/0000-0002-9266-7819; Ptochos, Fotios/0000-0002-3432-3452; Fernandez Perez Tomei, Thiago Rafael/0000-0002-1809-5226; David, Pieter/0000-0001-9260-9371; Rizzi, Andrea/0000-0002-4543-2718; Spagnolo, Paolo/0000-0001-7962-5203; Watson, Ian/0000-0003-2141-3413; Shah, Aashaq/0000-0002-6157-2016; YOON, INSEOK/0000-0002-3491-8026; Bhandari, Rohan/0000-0001-5888-955X; Levchuk, Leonid/0000-0001-5889-7410; Pfeiffer, Andreas/0000-0001-5328-448X; CHANG, PAO-TI/0000-0003-4064-388X; Havukainen, Joona Juhani/0000-0003-2898-6900; Tosi, Silvano/0000-0002-7275-9193; Vormwald, Benedikt/0000-0003-2607-7287; Smith, Wesley/0000-0003-3195-0909; Lethuillier, Morgan/0000-0001-6185-2045; Palladino, Vito/0000-0002-9786-9620; Staiano, Amedeo/0000-0003-1803-624X; Haller, Johannes/0000-0001-9347-7657; Zghiche, Amina/0000-0002-1178-1450; Laurila, Santeri/0000-0001-7507-8636; Landsberg, Greg/0000-0002-4184-9380; Myronenko, Volodymyr/0000-0002-3984-4732; Cristella, Leonardo/0000-0002-4279-1221; Hernandez Calama, Jose Maria/0000-0001-6436-7547; Massironi, Andrea/0000-0002-0782-0883; Grandi, Claudio/0000-0001-5998-3070; Bravo, Cameron/0000-0003-1102-8247; Zucchetta, Alberto/0000-0003-0380-1172; Litov, Leandar/0000-0002-8511-6883; Everaerts, Pieter/0000-0003-3848-324X; Zhang, Zhicai/0000-0002-1630-0986; Murillo Quijada, Javier Alberto/0000-0003-4933-2092; Sznajder, Andre/0000-0001-6998-1108; Mundim, Luiz/0000-0001-9964-7805; Govoni, Pietro/0000-0002-0227-1301; Fernandez Menendez, Javier/0000-0002-5213-3708; Bhowmik, Sandeep/0000-0003-1260-973X; Sculac, Toni/0000-0002-9578-4105; Dewanjee, Ram Krishna/0000-0001-6645-6244; Jafari, Abideh/0000-0001-7327-1870; Shchutska, Lesya/0000-0003-0700-5448; Heindl, Maximilian/0000-0002-2831-463X; Keaveney, James/0000-0003-0766-5307; Siikonen, Hannu/0000-0003-2039-5874; Malik, Sudhir/0000-0002-6356-2655; Voutilainen, Mikko/0000-0002-5200-6477; Schwandt, Joern/0000-0002-0052-597X; Kiminsu, Ugur/0000-0001-6940-7800; Galli Mercadante, Pedro/0000-0001-8333-4302; Cepeda, Maria/0000-0002-6076-4083; Buchanan, James/0000-0001-8207-5556; Grunewald, Martin/0000-0002-5754-0388; Kayis Topaksu, Aysel/0000-0002-3169-4573; Ebrahimi, Aliakbar/0000-0003-4472-867X; Zanetti, Marco/0000-0003-4281-4582; Heikkila, Jaana/0000-0002-0538-1469; Presilla, Matteo/0000-0003-2808-7315; Taylor, Lucas/0000-0002-6584-2538; Brigljevic, Vuko/0000-0001-5847-0062; Mitselmakher, Guenakh/0000-0001-5745-3658; Migliore, Ernesto/0000-0002-2271-5192; Rolandi, Luigi (Gigi)/0000-0002-0635-274X; Bachiller, IreneBachiller/0000-0002-3721-4876PubMed: 32845700The first observation of the (tt) over barH process in a single Higgs boson decay channel with the full reconstruction of the final state (H -> gamma gamma) is presented, with a significance of 6.6 standard deviations (sigma). The CP structure of Higgs boson couplings to fermions is measured, resulting in an exclusion of the pure CP-odd structure of the top Yukawa coupling at 3.2 sigma. The measurements are based on a sample of protonproton collisions at a center-of-mass energy root s = 13 TeV collected by the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb(-1). The cross section times branching fraction of the (tt) over barH process is measured to be sigma B-(tt) over barH(gamma gamma) = 1.56(-0.32)(+0.34) th, which is compatible with the standard model prediction of 1.13(-0.11)(+0.08) fb. The fractional contribution of the CP-odd component is measured to be f(CP)(Hu) = 0.00 +/- 0.33.BMBWF (Austria); FWF (Austria)Austrian Science Fund (FWF); FNRS (Belgium)Fonds de la Recherche Scientifique - FNRS; FWO (Belgium)FWO; CNPq (Brazil)National Council for Scientific and Technological Development (CNPq); CAPES (Brazil)CAPES; FAPERJ (Brazil)Carlos Chagas Filho Foundation for Research Support of the State of Rio de Janeiro (FAPERJ); FAPERGS (Brazil)Foundation for Research Support of the State of Rio Grande do Sul (FAPERGS); FAPESP (Brazil)Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP); MES (Bulgaria); CERN; CAS (China)Chinese Academy of Sciences; MoST (China)Ministry of Science and Technology, China; NSFC (China)National Natural Science Foundation of China (NSFC); COLCIENCIAS (Colombia)Departamento Administrativo de Ciencia, Tecnologia e Innovacion Colciencias; MSES (Croatia); CSF (Croatia); RPF (Cyprus); SENESCYT (Ecuador); MoER (Estonia); ERC IUT (Estonia)Estonian Research Council; PUT (Estonia); ERDF (Estonia)European Union (EU); Academy of Finland (Finland)Academy of Finland; MEC (Finland); HIP (Finland); CEA (France)French Atomic Energy Commission; CNRS/IN2P3 (France)Centre National de la Recherche Scientifique (CNRS); BMBF (Germany)Federal Ministry of Education & Research (BMBF); DFG (Germany)German Research Foundation (DFG); HGF (Germany); GSRT (Greece)Greek Ministry of Development-GSRT; NKFIA (Hungary); DAE (India)Department of Atomic Energy (DAE); DST (India)Department of Science & Technology (India); IPM (Iran); SFI (Ireland)Science Foundation Ireland; INFN (Italy)Istituto Nazionale di Fisica Nucleare (INFN); MSIP (Republic of Korea); NRF (Republic of Korea); MES (Latvia); LAS (Lithuania); MOE (Malaysia); UM (Malaysia); BUAP (Mexico); CINVESTAV (Mexico); CONACYT (Mexico)Consejo Nacional de Ciencia y Tecnologia (CONACyT); LNS (Mexico); SEP (Mexico); UASLP-FAI (Mexico); MOS (Montenegro); MBIE (New Zealand); PAEC (Pakistan); MSHE (Poland); NSC (Poland); FCT (Portugal)Portuguese Foundation for Science and Technology; JINR (Dubna); MON (Russia); RosAtom (Russia); RAS (Russia)Russian Academy of Sciences; RFBR (Russia)Russian Foundation for Basic Research (RFBR); NRC KI (Russia); MESTD (Serbia); SEIDI (Spain); CPAN (Spain); PCTI (Spain); FEDER (Spain)European Union (EU); MOSTR (Sri Lanka); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter (Thailand); IPST (Thailand); STAR (Thailand); NSTDA (Thailand); TUBITAK (Turkey)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK); TAEK (Turkey)Ministry of Energy & Natural Resources - Turkey; NASU (Ukraine); STFC (United Kingdom)Science & Technology Facilities Council (STFC); DOE (USA)United States Department of Energy (DOE); NSF (USA)National Science Foundation (NSF)We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMBWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, FAPERGS, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); SENESCYT (Ecuador); MoER, ERC IUT, PUT, and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); NKFIA (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); MES (Latvia); LAS (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI (Mexico); MOS (Montenegro); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS, RFBR, and NRC KI (Russia); MESTD (Serbia); SEIDI, CPAN, PCTI, and FEDER (Spain); MOSTR (Sri Lanka); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter, IPST, STAR, and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); and DOE and NSF (USA)
Mutant selection by using Fourier expansion
No full textAyav, Tolga/0000-0003-1426-5694Mutation analysis is a widely used technique to evaluate the effectiveness of test cases in both hardware and software testing. The original model is mutated systematically under certain fault assumptions and test cases are checked against the mutants created to see whether the test cases can detect the faults or not. Mutation analysis is usually a computationally intensive task, particularly in finite state machine (FSM) testing due to a possibly huge amount of mutants. Random selection could be a practical reduction method under the assumption that each mutant is identical in terms of the probability of occurrence of its associating fault. The present study proposes a mutant selection method based on Fourier analysis of Boolean functions. Fourier helps to identify the most effective transitions on the output so that the mutants related to those transitions can be selected. Such mutants are considered more important since they are more likely to be killed. To evaluate the method, test cases are generated by the well-known W method, which has the capability of detecting every potential fault. The original and reduced sets of mutants are compared with respect to their importance values. Evaluations show that the mutants selected by the proposed technique are more effective, which reduces the cost of mutation analysis without sacrificing the performance of the mutation analysis
Search for supersymmetry in proton-proton collisions at <mml:msqrt>s</mml:msqrt>=13 TeV in events with high-momentum Z bosons and missing transverse momentum
No full textMalawski, Maciej/0000-0001-6005-0243; Yazgan, Efe/0000-0001-5732-7950; Ricca, Giuseppe Della/0000-0003-2831-6982; Tcherniaev, Evgueni/0000-0002-3685-0635; Bagliesi, Giuseppe/0000-0003-4298-1620; Sen, F. Aydogmus/0000-0003-1434-2143; Ferencek, Dinko/0000-0001-9116-1202; Demiroglu, Zuhal Seyma/0000-0001-7977-7127; mohammed, yasser/0000-0001-8399-3017; Bartosik, Nazar/0000-0002-7196-2237; D'Hondt, Jorgen/0000-0002-9598-6241; Tiras, Emrah/0000-0002-5628-7464; Ligabue, Franco/0000-0002-1549-7107; Ivanchenko, Vladimir/0000-0002-1844-5433; Guler, Y./0000-0001-7598-5252; Gonzalez, Barbara Alvarez/0000-0001-7767-4810; Terkulov, Adel/0000-0003-4985-3226; CAKIR, Altan/0000-0002-8627-7689; Loukas, Dimitris/0000-0002-7431-3857; Cortezon, Jose Enrique Palencia/0000-0001-8264-0287; Cuevas-Maestro, Francisco Javier/0000-0001-5080-0821; Goh, Junghwan/0000-0002-1129-2083; Lopez, Oscar Gonzalez/0000-0002-4532-6464; Traczyk, Piotr/0000-0001-5422-4913; Azarkin, Maxim/0000-0002-7448-1447; Minafra, Nicola/0000-0003-4002-1888; Duarte, Javier/0000-0002-5076-7096; Wulz, Claudia-Elisabeth E/0000-0001-9226-5812; Blekman, Freya/0000-0002-7366-7098; Demiroglu, Zuhal Seyma/0000-0001-7977-7127; Bortignon, Pierluigi/0000-0002-5360-1454; Chadeeva, Marina/0000-0003-1814-1218; Ivanchenko, Vladimir N/0000-0002-1844-5433; Habibullah, Redwan/0000-0002-3161-8300; Dudko, Lev/0000-0002-4462-3192; Lezki, Samet/0000-0002-6909-774X; Fallavollita, Francesco/0000-0003-2315-2499; Meridiani, Paolo/0000-0002-8480-2259; Iglesias, Maria Cruz Fouz/0000-0003-2950-976X; Arneodo, Michele/0000-0002-7790-7132; De Guio, Federico/0000-0001-5927-8865; Andreev, Vladimir F/0000-0002-5492-6920; TOPAKSU, Aysel KAYIS/0000-0001-5819-6913; Felcini, Marta/0000-0002-2051-9331; Soares, Mara/0000-0001-9676-6059; Goy Lopez, Silvia/0000-0001-6508-5090; Mrenna, Stephen/0000-0001-8731-160X; Forthomme, Laurent/0000-0002-3302-336X; Haller, Johannes/0000-0001-9347-7657; Ulrich, Ralf/0000-0002-2535-402X; Redondo, Ignacio/0000-0003-3737-4121; Blumenfeld, Barry/0000-0003-1150-1735; Malik, Sudhir/0000-0002-6356-2655; Pieri, Marco/0000-0003-3303-6301; Pastrone, Nadia/0000-0001-7291-1979; Vartak, Adish/0000-0003-1507-1365; Garutti, Erika/0000-0003-0634-5539; Khvedelidze, Arsen/0000-0002-5953-0140; Csanad, Mate/0000-0002-3154-6925; Dallavalle, Gaetano Marco/0000-0002-8614-0420; Heredia de la Cruz, Ivan/0000-0002-8133-6467; Giammanco, Andrea/0000-0001-9640-8294; Tosi, Silvano/0000-0002-7275-9193; Ghosh, Saranya/0000-0001-6717-0803; Wang, Dayong/0000-0002-9013-1199; Wuyckens, Sophie/0000-0002-5092-7213; Ptochos, Fotios/0000-0002-3432-3452; Salvatico, Riccardo/0000-0002-2751-0567; Zuolo, Davide/0000-0003-3072-1020; Urda, Lourdes/0000-0002-7865-5010; Raidal, Martti/0000-0001-7040-9491; Schroder, Matthias/0000-0001-8058-9828; Sznajder, Andre/0000-0001-6998-1108; Hurtado Anampa, Kenyi/0000-0002-9779-3566; Gonzalez Caballero, Isidro/0000-0002-8087-3199; Bartok, Marton/0000-0002-4440-2701; FORD, WILLIAM/0000-0001-8703-6943; Monaco, Vincenzo/0000-0002-3617-2432; Schwandt, Joern/0000-0002-0052-597X; Popov, Andrey/0000-0002-1207-0984; Manca, Elisabetta/0000-0001-8946-655X; Belyaev, Alexander/0000-0002-1733-4408; Buchanan, James/0000-0001-8207-5556; Sanchez Navas, Sergio/0000-0001-6129-9059; Gomez, Gervasio/0000-0002-1077-6553; Tavolaro, Vittorio Raoul/0000-0003-2518-7521; Lange, Clemens/0000-0002-3632-3157; Tonelli, Guido Emilio/0000-0003-2606-9156; Benitez, Jose Feliciano/0000-0002-2633-6712; Viliani, Lorenzo/0000-0002-1909-6343; Rolandi, Luigi (Gigi)/0000-0002-0635-274X; Rossi, Biagio/0000-0002-0807-8772; Zorbakir, Ibrahim Soner/0000-0002-5962-2221; Gutsche, Oliver/0000-0002-8015-9622; Collard, Caroline/0000-0002-5230-8387; Giacomelli, Paolo/0000-0002-6368-7220; Smith, Wesley/0000-0003-3195-0909; Beaudette, Florian/0000-0002-1194-8556; Tinoco Mendes, Andre David/0000-0001-5854-7699; Dubinin, Mikhail/0000-0002-7766-7175; Martinez Ruiz del Arbol, Pablo/0000-0002-7737-5121; Mitselmakher, Guenakh/0000-0001-5745-3658; Nguyen, Thong Q./0000-0003-3954-5131; Sagir, Sinan/0000-0002-2614-5860; Rizzi, Andrea/0000-0002-4543-2718; Vilela Pereira, Antonio/0000-0003-3177-4626; Levchuk, Leonid/0000-0001-5889-7410; Fernandez Menendez, Javier/0000-0002-5213-3708; Kreczko, Luke/0000-0003-2341-8330; Frankenthal, Andre/0000-0002-2583-5982; Van Onsem, Gerrit/0000-0002-1664-2337; Androsov, Konstantin/0000-0003-2694-6542; Staiano, Amedeo/0000-0003-1803-624X; Vormwald, Benedikt/0000-0003-2607-7287; lee, jason/0000-0002-2153-1519; Golf, Frank/0000-0003-3567-9351; Heath, Helen/0000-0001-6576-9740; Kiminsu, Ugur/0000-0001-6940-7800; Dharmaraatna, Welathantri/0000-0002-6366-837X; David, Pieter/0000-0001-9260-9371; Cepeda, Maria/0000-0002-6076-4083; Rabbertz, Klaus/0000-0001-7040-9846; Grunewald, Martin/0000-0002-5754-0388; Kole, Gouranga/0000-0002-3285-1497; Martelli, Arabella/0000-0003-3530-2255; Piperov, Stefan/0000-0002-9266-7819; Starling, Elizabeth/0000-0002-4399-7213; Schulte, Jan-Frederik/0000-0003-4421-680X; Wu, Zhenbin/0000-0003-2165-9501; Calligaris, Luigi/0000-0002-9951-9448; Benato, Lisa/0000-0001-5135-7489; Gerosa, Raffaele/0000-0001-8359-3734; Ruiz Jimeno, Alberto/0000-0002-3639-0368; Mousa, Jehad/0000-0002-2978-2718; Kasemann, Matthias/0000-0002-0429-2448; Leon Holgado, Jaime/0000-0002-4156-6460; Vami, Tamas Almos/0000-0002-0959-9211; Fernandez Perez Tomei, Thiago Rafael/0000-0002-1809-5226; Petrucciani, Giovanni/0000-0003-0889-4726; YOON, INSEOK/0000-0002-3491-8026; Ruiz, Jose/0000-0002-3306-0363; Poudyal, Nabin/0000-0003-4278-3464; Bhowmik, Sandeep/0000-0003-1260-973X; Consuegra Rodriguez, Sandra/0000-0002-1383-1837; Vischia, Pietro/0000-0002-7088-8557; Novaes, Sergio/0000-0003-0471-8549; Alves, Gilvan/0000-0002-8369-1446; Galli Mercadante, Pedro/0000-0001-8333-4302; Fernandez Bedoya, Cristina/0000-0001-8057-9152; Puerta Pelayo, Jesus/0000-0001-7390-1457; Snoeys, Walter/0000-0003-3541-9066; Kim, Tae Jeong/0000-0001-8336-2434; Mitra, Soureek/0000-0002-3060-2278; Bloom, Kenneth/0000-0002-4272-8900; Wardle, Nicholas/0000-0003-1344-3356; Govoni, Pietro/0000-0002-0227-1301; Shopova, Mariana/0000-0001-6664-2493; Azzi, Patrizia/0000-0002-3129-828X; Marzocchi, Badder/0000-0001-6687-6214; Backhaus, Malte/0000-0002-5888-2304; Sharma, Ram Krishna/0000-0003-1181-1426; Krintiras, Georgios Konstantinos/0000-0002-0380-7577; Wilson, Graham/0000-0003-0917-4763; Delaere, Christophe/0000-0001-8707-6021; Sanchez-Hernandez, Alberto/0000-0001-9548-0358; Arcidiacono, Roberta/0000-0001-5904-142X; Verweij, Marta/0000-0002-1504-3420; Moon, Chang-Seong/0000-0001-8229-7829; Saka, Halil/0000-0001-7616-2573; Moran, Dermot/0000-0002-1941-9333; Belloni, Alberto/0000-0002-1727-656X; Chapon, Emilien/0000-0001-6968-9828; Pantaleo, Felice/0000-0003-3266-4357; Kayis Topaksu, Aysel/0000-0002-3169-4573; Naimuddin, Md/0000-0003-4542-386X; Shah, Aashaq/0000-0002-6157-2016; Lo Meo, Sergio/0000-0003-3249-9208; Mundim, Luiz/0000-0001-9964-7805; Padula, Sandra S./0000-0003-3071-0559; Brigljevic, Vuko/0000-0001-5847-0062; Watson, Ian/0000-0003-2141-3413; Carrillo Montoya, Camilo/0000-0002-6245-6535; Taylor, Lucas/0000-0002-6584-2538; Hernandez Calama, Jose Maria/0000-0001-6436-7547; Gandrajula, Reddy Pratap/0000-0001-9053-3182; Tully, Christopher/0000-0001-6771-2174; Zhang, Zhicai/0000-0002-1630-0986; Spagnolo, Paolo/0000-0001-7962-5203; Faccioli, Pietro/0000-0003-1849-6692; Chauhan, Shubhanshu/0000-0002-6544-5794; Akgun, Bora/0000-0001-8888-3562; Dogra, Sunil/0000-0002-0812-0758; Mora Herrera, Maria Clemencia/0000-0003-3915-3170; Heikkila, Jaana/0000-0002-0538-1469; Massironi, Andrea/0000-0002-0782-0883; Feld, Lutz/0000-0001-9813-8646; Harb, Ali/0000-0001-5750-3889; Mnich, Joachim/0000-0001-7242-8426; CUFFIANI, Marco/0000-0003-2510-5039; Myronenko, Volodymyr/0000-0002-3984-4732; Heindl, Maximilian/0000-0002-2831-463X; Tosi, Nicolo/0000-0002-0474-0247; Sharma, Varun/0000-0003-1287-1471; Belforte, Stefano/0000-0001-8443-4460; CHANG, PAO-TI/0000-0003-4064-388X; Abbiendi, Giovanni/0000-0003-4499-7562; Tapper, Alexander/0000-0003-4543-864X; Ricci-Tam, Francesca/0000-0001-9750-7702; Kothekar, Kunal/0000-0001-5102-4326; Gershtein, Yuri/0000-0002-4871-5449; Grohsjean, Alexander/0000-0003-0748-8494; Dewanjee, Ram Krishna/0000-0001-6645-6244; Leonardo, Nuno/0000-0002-9746-4594; Zucchetta, Alberto/0000-0003-0380-1172; Pfeiffer, Andreas/0000-0001-5328-448X; Lethuillier, Morgan/0000-0001-6185-2045; ALCARAZ MAESTRE, JUAN/0000-0003-0914-7474; Cassese, Antonio/0000-0003-3010-4516; Lucchini, Marco Toliman/0000-0002-7497-7450; Navarro-Tobar, Alvaro/0000-0003-3606-1780; d'Enterria, David/0000-0002-5754-4303; Murillo Quijada, Javier Alberto/0000-0003-4933-2092; Lange, Johannes/0000-0001-7513-6330; Usai, Emanuele/0000-0001-9323-2107; Rappoccio, Salvatore/0000-0002-5449-2560; Canelli, Florencia/0000-0001-6361-2117; Zghiche, Amina/0000-0002-1178-1450; Garcia, Francisco/0000-0002-4023-7964; Kyberd, Paul/0000-0002-7353-7090; Litov, Leandar/0000-0002-8511-6883; Dominguez, Aaron/0000-0002-7420-5493; Costa, Salvatore/0000-0001-9919-0569; Attia Mahmoud, Mohammed/0000-0001-8692-5458; Caputo, Claudio/0000-0001-7522-4808; Bachiller, IreneBachiller/0000-0002-3721-4876; Grandi, Claudio/0000-0001-5998-3070; Ince Lezki, Merve/0000-0001-6907-0195; Klanner, Robert/0000-0002-7004-9227; Hamel de Monchenault, Gautier/0000-0002-3872-3592; Schonenberger, Myriam/0000-0002-6508-5776; Jafari, Abideh/0000-0001-7327-1870; Bodek, Arie/0000-0003-0409-0341; Zanetti, Marco/0000-0003-4281-4582; Ivanov, Andrew/0000-0002-9270-5643; Goldstein, Joel/0000-0003-1591-6014; Sosa Ricardo, Rafael Eduardo/0000-0002-2240-6699; Li, Qiang/0000-0002-8290-0517; Botta, Cristina/0000-0002-8072-795X; Krikler, Benjamin/0000-0001-9712-0030; Cavallari, Francesca/0000-0002-1061-3877; Cristella, Leonardo/0000-0002-4279-1221; Konecki, Marcin/0000-0001-9482-4841; Waltenberger, Wolfgang/0000-0002-6215-7228; Fernandez Ramos, Juan Pablo/0000-0002-0122-313X; Sciacca, Crisostomo/0000-0002-8412-4072; Amendola, Chiara/0000-0002-4359-836X; Ecklund, Karl/0000-0002-6976-4637; Haddad, Yacine/0000-0003-4916-7752; Moraes, Arthur/0000-0002-5157-5686; Ebrahimi, Aliakbar/0000-0003-4472-867X; Trevisani, Nicolo/0000-0002-5223-9342; Fiorendi, Sara/0000-0003-3273-9419; Landsberg, Greg/0000-0002-4184-9380; Conway, John/0000-0003-2719-5779; Dragicevic, Marko/0000-0003-1967-6783; Reis, Thomas/0000-0003-3703-6624; Sculac, Toni/0000-0002-9578-4105; Palladino, Vito/0000-0002-9786-9620; ASILAR, Ece/0000-0001-5680-599X; Migliore, Ernesto/0000-0002-2271-5192; Cadamuro, Luca/0000-0001-8789-610X; Paulini, Manfred/0000-0002-6714-5787; Lawhorn, Jay/0000-0002-8597-9259; Alverson, George/0000-0001-6651-1178; Bernardes, Cesar Augusto/0000-0001-5790-9563; Robert, Schoefbeck/0000-0002-2332-8784; Everaerts, Pieter/0000-0003-3848-324X; Hall, Geoffrey/0000-0002-6299-8385A search for new physics in events with two highly Lorentz-boosted Z bosons and large missing transverse momentum is presented. The analyzed proton-proton collision data, corresponding to an integrated luminosity of 137 fb(-1), were recorded at s = 13 TeV by the CMS experiment at the CERN LHC. The search utilizes the substructure of jets with large radius to identify quark pairs from Z boson decays. Backgrounds from standard model processes are suppressed by requirements on the jet mass and the missing transverse momentum. No significant excess in the event yield is observed beyond the number of background events expected from the standard model. For a simplified supersymmetric model in which the Z bosons arise from the decay of gluinos, an exclusion limit of 1920 GeV on the gluino mass is set at 95% confidence level. This is the first search for beyond-standard-model production of pairs of boosted Z bosons plus large missing transverse momentum
Katmanlı imalata uygun metal tozlarının yayılım ve karakterizasyonu
No full textThesis (Master)--Izmir Institute of Technology, Materials Science and Engineering, Izmir, 2020Includes bibliographical references (leaves: 53-56)Text in English; Abstract: Turkish and EnglishPowder Bed Fusion (PBF) is one of the Additive Manufacturing (AM) techniques, in which metal powders are used as feedstock. AM process enables the production of lightweight structures, design freedom in 3D printed parts, short cycle time, etc. AM made part properties are affected by the powder characteristics used to form the component. A part comprises hundreds of spread layers; however, a homogeneous layer is crucial for obtaining the necessary final part properties. Spreadability can be defined as a method to quantify the powder distribution through the layer. Although it has not been standardized yet, currently, it is merely controlled by following the powder flowability, a standardized characterization method for AM. This thesis investigates the spreadability of the utilized powders for AM (here only Laser-Powder Bed Fusion will be used), with the image processing algorithms in MATLAB. Besides, it also aims to examine the spreadability correlation with the other characteristics such as flow rate, apparent density, angle of repose, and thus the final 3D printed components. Samples in six different particle size distribution were characterized, and spreadability tests were performed with the L-PBF machine. The powder characterization results demonstrated that an increase in fine particle ratio by volume (below 20 µm) enhances the angle of repose (AOR). The tests demonstrated that irregularities on the spread layer could be quantified with the image processing algorithms. The 3D printed samples were found porous. The reason for porosity in the sample might base on a combination of various factors, poor spreadability, spatter formation, and other L-PBF processing parameters might be the reasons for such microstructural development.Toz Yatak Füzyon Birleştirme (PBF), hammadde olarak metal tozlarının kullanıldığı Eklemeli/Katmanlı İmalat (AM) tekniklerinden biridir. Eklemeli imalat prosesi, hafif yapıların üretimini, üç boyutlu üretilen parçalarda tasarım özgünlüğünü, kısa çevrim süresini, vb. sağlar. Eklemeli imalat ile üretilen parçanın özellikleri, parçayı oluşturmak için kullanılan toz özelliklerinden etkilenmektedir. Bir parça yüzlerce serilen katmandan oluşur; ancak, gerekli nihai parça özelliklerini elde etmek için katmanın homojenliği çok önemlidir. Serilebilirlik, katman boyunca toz dağılımını ölçmek için kullanılan bir yöntem olarak tanımlanabilir. Henüz standartlaştırılmamış olmasına rağmen, günümüzde serilebilirlik, eklemeli imalat için standartlaştırılmış bir karakterizasyon yöntemi olan toz akışkanlığını takiben kısmen kontrol edilmektedir. Bu tez, eklemeli imalat için değerlendirilen tozların (burada sadece Lazer-Toz Yatak Füzyon Birleştirme kullanılacaktır) MATLAB' deki görüntü işleme algoritmaları ile serilebilirliğini araştırmaktadır. Buna ek olarak akış hızı, sıkıştırılmış yoğunluk, yığılma açısı gibi diğer özelliklerle serilebilirlilik korelasyonunu ve dolayısıyla son üç boyutlu üretilmiş parçaları incelemeyi amaçlamaktadır. Altı farklı tane dağılımındaki toz numuneler karakterize edildi ve L-PBF makinesi tarafından serilebilirlik testleri yapıldı. Toz karakterizasyon sonuçları, hacimce ince tanecik oranındaki artışın (20 µm' nin altında), yığılma açısını (AOR) arttırdığını gösterdi. Testler ayrıca, serilen katmandaki düzensizliklerin görüntü işleme algoritmalarıyla ölçülebileceğini gösterdi. 3 boyutlu olarak üretilen numuneler gözenekli bulundu. Numunelerdeki porozitenin nedeni çeşitli faktörlerin bir kombinasyonuna dayanabilir; zayıf serilebilirlik, saçılma oluşumu ve diğer L-PBF işleme parametreleri, bu tür mikroyapısal gelişimin nedenleri olabilir
Yapım yönetimi yazınında proje maliyet tahmin modellerinin eleştirel bir incelemesi
No full textThesis (Master)--Izmir Institute of Technology, Architecture, Izmir, 2020Includes bibliographical references (leaves: 77-90)Text in English; Abstract: Turkish and EnglishStudies in recent years have shown that the majority of published studies cannot be reproduced. Failure to reproduce the researchs lead to a crisis in the reliability of the study results. The importance and benefits of reproducible research results have been well understood in a number academic fields such as psychology and biomedicine and in turn several steps have been taken to ensure the adequate data sharing in order to reproduce the studies. . The thesis presented herein explores the concept of reproducibility in the context of construction management literature in particular construction cost estimation research. A sample of 227 articles published in project management and construction management journals was analyzed. The research findings reveal that only 3.69% of articles can be reproduced and reproducibility is a major issue in construction management literature. The primary reasons those the reproducibility of the studies difficult include missing data, presentation method, inability to read the graphics and tables, incomplete reporting and explanation errors. It appears that the reliability crisis which has widely acknowledge in a number research fields is also major in the construction management literature.İnşaat sektöründe, proje yönetimi temel zorluklardan biridir. Projeler belirlenen süre, iş kapsamı ve maliyet aşılmadan bitirilmelidir. Maliyet hem yatırımcılar hem de proje için en temel birleşenlerden biridir. Projelerdeki önemli kararlar maliyete dayanır, o nedenle doğru maliyet tahmini projelerde önemli bir rol oynar. Son zamanlarda, inşaat sektöründe doğru ve kısa sürede maliyet hesabı için bir çok maliyet hesaplama yöntemi geliştirilmektedir. Tezin ana amacı, maliyet tahmin yöntemlerini proje yönetimi literatürü ve yeniden üretilebilirlik açısından değerlendirerek güvenilirliklerini ve ne kadar doğru sonuç verdiklerini kritik etmektir. Araştırmada, başlıca 23 proje ve inşaat yönetimi dergisinden seçilen 227 makale örneklem olarak seçilerek, belirlenen kriterler(variables) incelenerek araştırmacıların verilerin ne kadarını paylaştığı, sonuçlar konusunda ne kadar şeffaf olduklarının karşılaştırması yapılmaktadır. Tezin giriş bölümünde, yeniden üretme kavramı ve maliyet hesaplama yöntemleri genel olarak incelenmekte, maliyet tahmini ile ilgili çalışmalarda veri paylaşımı ve yeniden üretme irdelenmekte, tezin amacı, hedefleri ve araştırma soruları ortaya konulmaktadır. Tez çalışmasının ikinci bölümünde, yeniden üretme kavramı tanımları, tarihsel süreci, araştırmalarda veri paylaşımı ve önemi, veri paylaşımını destekleyen bakış açıları ele alınmaktadır. Tezin üçüncü aşamasında, maliyet ve inşaat maliyeti tanımları, maliyet tahmin yöntemlerinin açıklanması, tarihsel süreci ele alınmıştır. Tez çalışmasının dördüncü bölümünde, araştırma analizi ve veri analizi teknikleri açıklanmaktadır. Bu teknikler bağlamında, örneklem seçimi, içerik analizi ve araştırma metodolojisi hakkında detaylar aktarılmaktadır. Tezin son bölümünde, içerik analizi sonuçlarının istatistiki olarak değerlendirilmesi sonucu elde edilen veriler açıklanmaktadır. Araştırma sonuçlarının genel değerlendirmesi yapılarak proje yönetimi literatüründe maliyet hesaplama yöntemi araştırmalarında yeniden üretilme kavramının önemi ve nasıl adapte edilebileceği açıklanmıştır