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Adaptive shared control with human intention estimation for human agent collaboration
No full textIn this paper an adaptive shared control frame-work for human agent collaboration is introduced. In this framework the agent predicts the human intention with a confidence factor that also serves as the control blending parameter, that is used to combine the human and agent control commands to drive a robot or a manipulator. While performing a given task, the blending parameter is dynamically updated as the result of the interplay between human and agent control. In a scenario where additional trajectories need to be taught to the agent, either new human demonstrations can be generated and given to the learning system, or alternatively the aforementioned shared control system can be used to generate new demonstrations. The simulation study conducted in this study shows that the latter approach is more beneficial. The latter approach creates improved collaboration between the human and the agent, by decreasing the human effort and increasing the compatibility of the human and agent control commands.TÜBİTA
On optimal toll design for bosporus crossings
No full textFor many years, two toll bridges served commuter demand to cross the strait called Bosporus in Istanbul, Turkey. An underground connection called the Eurasian tunnel had been recently launched to relieve the strait's traffic. We study a simple transportation model that incorporates the forces that have come into play after the opening of the Eurasian tunnel. We find that for welfare maximisation, the premium paid for using the tunnel should be fixed in the two directions and not excessive. The current toll regime violates these features, and we recommend its amendment in light of our findings.Publisher versio
Relations among self-reported maternal stress, smartphone use, and mother–child interactions
No full textA growing body of research indicates that parents’ smartphone use is associated with interruptions in parent–child interactions and lower levels of parental responsiveness, which may adversely affect children’s cognitive and socioemotional development. Studies suggest that parent–child interactions are more frequently interrupted by the use of screen-based devices if parents experience more stress specifically resulting from the demands of parenting, yet there are unexamined questions. Is parents’ general daily stress related to technology-based interruptions in parent–child interactions? If so, does parents’ use of mobile technology mediate this relationship? In this first study testing the mediating role of parental use of mobile phones between parental stress and technology-based interruptions in parent–child interactions, we collected data from 604 mothers of children younger than age six with an online survey. Results showed that controlling for child age, family income, mothers’ employment status, household size, and maternal and paternal education, more stressed mothers reported using their mobile phones more problematically (e.g., not being able to resist checking messages), which was linked to more frequent perceived interruptions in the interactions with their children. Our results suggest that using mobile phones may serve as an outlet for stressed parents and is related to disruptions in the flow of parent–child interactions
Measurement of the inclusive and differential higgs boson production cross sections in the decay mode to a pair of τ leptons in pp collisions at √ s = 13 TeV
No full textMeasurements of the inclusive and differential fiducial cross sections of the Higgs boson are presented, using the τ lepton decay channel. The differential cross sections are measured as functions of the Higgs boson transverse momentum, jet multiplicity, and transverse momentum of the leading jet in the event, if any. The analysis is performed using proton-proton collision data collected with the CMS detector at the LHC at a center-of-mass energy of 13 TeV and corresponding to an integrated luminosity of 138 fb-1. These are the first differential measurements of the Higgs boson cross section in the final state of two τ leptons. In final states with a large jet multiplicity or with a Lorentz-boosted Higgs boson, these measurements constitute a significant improvement over measurements performed in other final states.BMBWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, FAPERGS, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); MINCIENCIAS (Colombia); MSES and CSF (Croatia); RIF (Cyprus); SENESCYT (Ecuador); MoER, ERC 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); DOE and NSF (USA).Publisher versio
Alienated imagination through a mega development project in Turkey: the case of the Osman Gazi Bridge
No full textSince the rise of the ruling Justice and Development Party in the early 2000s, Turkey has invested in several mega transport and infrastructure projects for the purposes of economic transformation, growth, and development. This article explores the impact of a recently completed mega-project - the Osman Gazi Bridge - on material change and popular imagination about the future. It claims that, while the Bridge created a colossal material change that can be observed by everyone, it also animated an imagined post-industrial transition and inclusive development in the industrial town of Dilovasl. Although the dream of a better future serves as a medium for the industrial town's underprivileged inhabitants to connect and socialize, along with the current marginalizing conditions, it also has the potential to fuel future resistance, if imagination is unable to be transformed into reality.Publisher versio
Soil liquefaction-induced uplift of buried pipes in sand-granulated-rubber mixture: Numerical modeling
No full textThe significant uplift of buried pipes observed during recent earthquakes has showed the need for further research in remediation methods for soil liquefaction. Sand-granulated rubber mixture is reported as a new soil improvement method that can be applied as a liquefaction mitigation filling material around buried pipe. In this study, the effects of pipe size, burial depth, and shaking intensity on the pipe uplift and the liquefaction potential of the sand-tire derived granulated rubber mixture placed around the buried pipes were investigated using numerical models. First, the result of 1-g shaking table tests was used for the verification of the numerical analysis. Comparing the numerical results and the experimental measurements showed that the numerical simulation using the UBCSAND constitutive model could accurately estimate the liquefaction-induced uplift of the buried pipes as well as the related failure. Then, a parametric study was conducted to investigate the effects of the pipe diameter, the pipe depth, and the value of the acceleration on pipe uplift and liquefaction potential when the SGR mixture was placed as filling material. Eventually, an analytical formula was proposed to estimate the liquefaction-induced uplift of buried pipes, and the soil failure mode was categorized according to the pipe’s burial depth ratio.TÜBİTAKPublisher versio
First search for exclusive diphoton production at high mass with tagged protons in proton-proton collisions at √s = 13 TeV
No full textA search for exclusive two-photon production via photon exchange in proton-proton collisions, pp→pγγp with intact protons, is presented. The data correspond to an integrated luminosity of 9.4 fb-1 collected in 2016 using the CMS and TOTEM detectors at a center-of-mass energy of 13 TeV at the LHC. Events are selected with a diphoton invariant mass above 350 GeV and with both protons intact in the final state, to reduce backgrounds from strong interactions. The events of interest are those where the invariant mass and rapidity calculated from the momentum losses of the forward-moving protons match the mass and rapidity of the central, two-photon system. No events are found that satisfy this condition. Interpreting this result in an effective dimension-8 extension of the standard model, the first limits are set on the two anomalous four-photon coupling parameters. If the other parameter is constrained to its standard model value, the limits at 95% confidence level are |ζ1|<2.9×10-13 GeV-4 and |ζ2|[removed]BMBWF and FWF (Austria) ; FNRS and FWO (Belgium) ; CNPq, CAPES, FAPERJ, FAPERGS, and FAPESP (Brazil) ; MES and BNSF (Bulgaria) ; CERN; CAS, MoST, and NSFC (China) ; MINCIENCIAS (Colombia) ; MSES and CSF (Croatia) ; RIF (Cyprus) ; SENESCYT (Ecuador) ; MoER, ERC PUT and ERDF (Estonia) ; Academy of Finland, Finnish Academy of Science and Letters (The Vilho Yrj? and Kalle V?is?l? Fund) , MEC, Magnus Ehrnrooth Foundation, HIP, and Waldemar von Frenckell Foundation (Finland) ; CEA and CNRS/IN2P3 (France) ; BMBF, DFG, and HGF (Germany) ; GSRI (Greece) ; the Circles of Knowledge Club, 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) ; DOE and NSF (USA) .Publisher versio
Covid-19 pandemisi sırasında çocuk mizaç, ebeveynlik stresi ve uyku zamanı rutinlerinin çocukların uyku davranışları ile ilişkileri
No full textThe current study examined the direct and indirect contributions of children’s temperament (reactivity, persistence, and rhythmicity), parenting stress, and bedtime routines to Turkish children’s sleep behaviors during the COVID-19 pandemic. Furthermore, this study also examined the moderating role of parenting stress between children’s temperament and bedtime routines. The sample was 313 mothers of children between 16 and 84 months (M = 52.42, SD= 12.36). Mothers reported their children’s sleep behaviors, children’s bedtime routines, parenting stress, and children’s temperament. Multivariate path analyses were run to test the direct, indirect, and moderating effects. Results indicated that parenting stress was negatively related to children’s sleep behaviors. Further, it was found that consistency of bedtime routine environments was positively associated with children’s sleep behaviors. For the indirect associations, children’s temperament (rhythmicity and reactivity) was indirectly associated with children’s sleep behaviors via consistency of bedtime routines. For moderating effects, parenting stress moderated the association between persistence and consistency of bedtime routine behaviors. In detail, persistence served as a protector factor for the consistent bedtime routine behaviors in the existence of parenting stress. Findings underline the importance of child temperament, parenting stress, and bedtime routines for children’s sleep behaviors. The implications of the findings are discussed in the light of previous research and the bioecological model of human development (Bronfenberenner & Morris, 2007) in considering their functioning during the COVID-19 pandemic.Mevcut çalışma, çocukların mizacının (tepkisellik, sebatkârlık ve ritmiklik), ebeveynlik stresinin ve yatma zamanı rutinlerinin COVID-19 salgını sırasında Türk çocuklarının uyku davranışlarına doğrudan ve dolaylı katkılarını incelemiştir. Bunun yanında, bu çalışma ebeveynlik stresinin çocukların mizaçları ve yatma zamanı rutinleri arasındaki düzenleyici rolünü de incelemiştir. Örneklem, 16 ila 84 ay arasında çocuğu olan 313 anneden oluşmuştur (Ort. = 52.42, SS= 12.36). Anneler, çocuklarının uyku davranışlarını, çocukların uyku rutinlerini, ebeveynlik stresini ve çocukların mizacını değerlendirmişlerdir. Doğrudan, dolaylı ve etkileşimsel etkileri test etmek için çok değişkenli yol analizleri yapılmıştır. Sonuçlar, ebeveynlik stresinin çocukların uyku davranışlarıyla olumsuz ilişkili olduğunu göstermiştir. Ayrıca, yatma zamanı rutin ortamlarının tutarlılığının, çocukların uyku davranışları ile pozitif olarak ilişkili olduğu bulunmuştur. Dolaylı ilişkilerde, çocukların mizacının (ritmiklik ve tepkisellik), yatma zamanı rutinlerinin tutarlılığı yoluyla çocukların uyku davranışlarıyla dolaylı olarak ilişkili olduğu görülmüştür. Denetleyici etkilerde, ebeveynlik stresinin yatmadan önce rutin davranışların tutarlılığı ve sebatkârlık arasındaki ilişkiyi denetlediği görülmüştür. Detaylı olarak, sebatkârlık, ebeveynlik stresinin varlığında tutarlı yatma zamanı rutin davranışları için bir koruyucu faktör olarak hizmet etmiştir. Bulgular, çocukların uyku davranışları için çocuk mizacının, ebeveynlik stresinin ve yatma zamanı rutinlerinin önemini vurgulamaktadır. Sonuçlar önceki araştırmaların ve insan gelişiminin Biyoekolojik m-Modelinin (Bronfenberenner & Morris, 2007) ışığında, COVID-19 salgını sırasındaki işlevleri göz önünde bulundurularak tartışılmıştır
Revealing the performance of bio-MOFs for adsorption-based uremic toxin separation using molecular simulations
No full textRecently, adsorption-based separation methods have been used to remove uremic toxins from the blood of chronic kidney patients. Among the porous adsorbents, metal organic frameworks (MOFs) are recognized as potential materials due to their highly porous and tuneable structures. In this work, as a first time in the literature, we assess adsorption-based uremic toxin separation performance of 315 bio-compatible MOFs (bio-MOFs) by performing atomically-detailed simulations. We first identified hydrophobic bio-MOFs and then computed creatinine, urea, and water uptakes in these bio-MOFs by performing grand canonical Monte Carlo (GCMC) at 310 K and 1 bar. Results showed that several bio-MOFs outperform traditional adsorbents such as zeolites, activated carbons, zeolite-polymer composite nanofibers and polymers in terms of creatinine and urea uptakes. We also examined multi-component adsorption of uremic toxins in bio-MOFs at 310 K considering different bulk compositions of uremic toxins in water. The amount of adsorbed water in bio-MOFs slightly increased due to hydrogen bonds formed between the atoms of uremic toxins and water whereas the amount of adsorbed urea was significantly decreased due to competition between uremic toxins for the same adsorption sites. Overall, adenine-based bio-MOFs including bio-MOF-11 (YUVSUE), bio-MOF-12 (BEYSEF) and a dicyanamide based MOF, KEXDIB were found to be promising candidates for both urea/water and creatinine/water separations. Our results will be useful for the development of high-performance bio-MOF adsorbents for uremic toxin separation
Searching ‘Italianità’ in the Dodecanese Islands (1912-1943). Some considerations on Art, Architecture and Archeology through the works of Hermes Balducci
No full textThe rediscovery and promotion of fourteen islands in the Aegean Sea – renamed the Dodecanese Islands – annexed to Italy as a military possession while formally under the dominion of the Ottomans, might be considered another phase in the search for an Italian identity. From 1912 to 1943 these islands experienced Italy’s ambiguous presence as invaders and colonizers. This paper aims to highlight the concept of Italianità through the works of Hermes Balducci, one of the protagonists of Italian colonial architecture in the Dodecanese Islands. To this end and using lesser-known material, this case study intends to recreate and redefine the past of the Italian presence on these islands and provide an interesting point of view in the search for a lost and rediscovered Italian spirit