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708,304 Works

P versus NP on NP-completeness

Frank Vega
P versus NP is considered as one of the most important open problems in computer science. This consists in knowing the answer of the following question: Is P equal to NP? This question was first mentioned in a letter written by John Nash to the National Security Agency in 1955. However, a precise statement of the P versus NP problem was introduced independently in 1971 by Stephen Cook and Leonid Levin. Since that date, all...

2009 ArtStart

Alexander Hayes
In 2009 the researcher attended ‘ArtStart’ at the Australian Technology Park (ATP) in Redfern, NSW Sydney Australia, presenting a case for how web 2.0 technologies and the rhetoric of the open web had paved the way for human engagement with social media. The researcher recounted the many ways in which mobile technologies had influenced human behaviour and provided examples of how wearable computing would likely revolutionise certain occupations such as police.

Quasi-Periodic Pulsations in the Earth’s Ionosphere Synchronized with Solar Flare Emission

Laura Hayes & Peter Gallagher
Solar flare activity is a powerful factor affecting the geophysical processes in the Earth’s ionosphere. In particular, X-ray photons with wavelength < 10 A can penetrate down to the D-region (~60-90 km in altitude) resulting in a dramatic increase of ionization in this lowest lying region of the Earth’s ionosphere. This manifests as a substantial enhancement of electron density height profile at these altitudes to extents large enough to change the propagation conditions for Very...

Real-life use of diagnostic biopsies before treatment of kidney cancer: results from a Norwegian population-based study

Christian Beisland, Tom B. Johannesen, Lars Anders R. Reisæter & Karin M. Hjelle
Objective: Interest in renal mass biopsies (RMBs) has increased in recent years. However, most publications are low-volume and/or single-center studies, so their generalizability is questionable. The aim of this study was to describe population-based, real-life use of diagnostic RMBs for localized and advanced kidney cancer (KC). Materials and methods: All KC patients diagnosed during 2008–2013 extracted from the database at the Cancer Registry of Norway were included. Relationships with outcome were analyzed using multivariate logistic...

2009 Elearning09 Presentation

Alexander Hayes & Geoff Lubich
On December 7 - 8, 2009 the researcher attended as an industry representative of EDUPOV Pty Ltd the eLearning09 conference (Ridgway December 7-8, 2009) held by the Australian Flexible Learning Framework (AFLF) in Sydney, Australia. The researcher conducted workshops demonstrating the VIO POV (Mil-Spec Monkey 2008) helmet camera to representatives of the Manufacturing, Engineering, Construction and Transport (MECaT) teams from around Australia and showcased the Streamfolio application as a repository for data produced from POV...

Statistical supplement to: Biomechanics of the peafowl’s crest: a potential mechanosensory role for feathers during social displays

Roslyn Dakin, Daniel Van Beveren & Suzanne Amador Kane
Data and figures on peafowl crest feather vibration and mechanical properties. This fileset includes the data, R scripts, and figure files necessary to reproduce the figures and analysis.

Transforming Hidden Conflicts into Participation: The Case of a Charismatic Leadership in the Middle East

Pierre EL HADDAD, Marc Bonnet & Patrick Tabchoury
bstract Purpose - The presentis paper addresses the issues raised by hidden conflicts in a charismatic -led organization. The paper investigates the transformation from a management paradigm of quelling conflict artificially through charismatic leadership charismatic leadership artificially taming conflict, to a negotiation paradigm of negotiation that favors participationfavoring participation, systematicity, the multiplication multiplying of innovation sources, and synchronization. The research is based on a specific approach to action -research aimed at to revealing the inherently...

Mis trabajadores se van de la empresa, ¿cómo freno esta estampida?

Jorge Alba
Los motivos por los que la gente abandona una compañía son muy diversos, por lo que conocer la razón exacta es bastante complicado. La realidad es que, como sucede con los accidentes, suele tratarse de un cúmulo de factores.

İşbirlikli Problem Çözmenin Kodlama Öğretimine Yansıması Olarak Eşli Kodlamanın İncelenmesi

Ömer Demir & Süleyman Sadi Seferoğlu
Problem çözme becerisi; eğitimde bilginin transferi, otantik öğrenme ve üretmeye yapılan vurgunun artmasıyla birlikte giderek önem kazanmıştır. Bu arada işbirlikli öğrenme, bilginin öznel olarak birey tarafından yapılandırılmasının yoğun olarak kabul görülmesiyle birlikte sosyal uzlaşının sağlanabilmesi için önemli görülmeye başlanmıştır. Bu iki gelişme zamanla işbirlikli problem çözme kavramının doğmasına yol açmıştır.Öte yandan kodlama öğretimi özellikle son on yılda oldukça önem kazanmıştır. Kodlama öğretimi temelde bilgi-işlemsel düşünmenin temelini oluşturan işbirliği, eleştirel düşünme, algoritmik düşünme, yaratıcı düşünme ve...

River networks of QH catchment

Song Song
the main and branch river networks of QH catchment.

Akademisyenlerin E-öğrenmeye Hazır Bulunuşluğu: Bir Ölçek Geliştirme Çalışması

Ömer Demir & Halil Yurdugül
E-öğrenmenin yaygınlaşmasıyla bireylerin e-öğrenmeye çeşitli açılardan hazır olup olmadıkları sorusu gündeme gelmiştir. Bu konudaki çalışmalar yoğunlukla öğrencilerin e-öğrenmeye hazır bulunuşluğu üzerine odaklanmaktadır. Bu noktada e-öğrenmeye hazır bulunuşluk hakkındaki çalışmaların akademisyenlerin e-öğrenmeye hazır bulunuşluğuna da odaklanması gerektiği ifade edilebilir. Ancak bunun için öncelikle Türkçe alanyazında geçerli ve güvenilir bir ölçme aracının bulunması gerekmektedir. Bu nedenle bu araştırma kapsamında akademisyenlerin e-öğrenmeye hazır bulunuşluğuna ilişkin bir ölçme aracı geliştirilmiştir. Geliştirme sürecinde ilk olarak ilgili alanyazın incelemesi sonucunda madde...

multifractal code

Song Song
the multifractal code

Öğretmen Yetiştiren Lisans Programlarındaki Öğretmen Adaylarının E-öğrenmeye Hazır Bulunuşluklarının İncelenmesi: Hacettepe Üniversitesi Örneği

Halil Yurdugül & Ömer Demir
E-learning readiness is one of the most important variables in e-learning because e-learning readiness directly affects the success of e-learning initiatives. Therefore, more studies about e-learning readiness are needed to make teacher training undergraduate programs readier for e-learning. In this study, in this respect, the correlations of the components of e-learning readiness construct with each other were investigated. Besides, senior and freshman students of faculty of education were compared in terms of their e-learning readiness...

Öğretmen Yetiştiren Lisans Programlarındaki Öğretmen Adaylarının E-öğrenmeye Hazır Bulunuşluklarının İncelenmesi: Hacettepe Üniversitesi Örneği

Halil Yurdugül & Ömer Demir
E-learning readiness is one of the most important variables in e-learning because e-learning readiness directly affects the success of e-learning initiatives. Therefore, more studies about e-learning readiness are needed to make teacher training undergraduate programs readier for e-learning. In this study, in this respect, the correlations of the components of e-learning readiness construct with each other were investigated. Besides, senior and freshman students of faculty of education were compared in terms of their e-learning readiness...

Yeni Kavramlar, Farklı Kullanımlar: Bilgi-İşlemsel Düşünmeyle İlgili Bir Değerlendirme

Ömer Demir & Süleyman Sadi Seferoğlu
Eleştirel, yaratıcı, yansıtıcı, analitik, mantıklı vb. düşünme becerileri eğitimin bireye sağlayacağı önemli kazanımlardandır. 1960’lardan beri farklı isimler altında gündemde olan bilgi-işlemsel düşünme becerisi de bireylere kazandırılması gereken düşünme becerileri arasında yer almaktadır. Bilgi-işlemsel düşünme becerisini diğer düşünme becerilerinden ayıran en önemli özellik bilgi-işlemsel düşünmenin insanların bilgisayarlarla işbirliği yapmalarına izin vermesidir. Bu nedenle özellikle 2000’li yıllardan sonra teknolojinin de gelişmesi ile bilgi-işlemsel düşünme daha çok mercek altına alınmaya başlanmıştır. Ancak bilgi-işlemsel düşünmenin eğitsel doğurgularının hala net...

Appendix A

Aditya Pratama
The behaviour of bucket brigades with worker collaboration on 3-station, 2-worker line with fully or partially cross-trained workers as slowest-to-fastest and fastest-to-slowest can be derived as follows:

Coral-hydrozoan co-occurrence dataset from Corals hosting symbiotic hydrozoans are less susceptible to predation and disease

Simone Montano, Simone Fattorini, Valeriano Parravicini, Michael L. Berumen, Paolo Galli, Davide Maggioni, Roberto Arrigoni, Davide Seveso & Giovanni Strona
The dataset report detailed information about all coral colonies investigated in the study. This includes sampling region (Maldives or Saudi Arabia), a unique identifier for sampling site, depth class, coral genus, colony size class, a binary field indicating the occurrence on the colony of symbiotic hydrozoans, and 8 binary fields indicating the presence of signs of various coral health conditions, namely: coral bleaching, coral algae overgrowth, fish bites, gastropod (Drupella spp.) bites, white syndrome, brown...

Supplementary material from "Corals hosting symbiotic hydrozoans are less susceptible to predation and disease"

Simone Montano, Simone Fattorini, Valeriano Parravicini, Michael L. Berumen, Paolo Galli, Davide Maggioni, Roberto Arrigoni, Davide Seveso & Giovanni Strona
In spite of growing evidence that climate change may dramatically affect networks of interacting species, whether—and to what extent—ecological interactions can mediate species' response to disturbances is an open question. Here we show how a largely overseen association such as that between hydrozoans and scleractinian corals could be possibly associated with a reduction in coral susceptibility to ever-increasing predator and disease outbreaks. We examined 2450 scleractinian colonies (from both Maldivian and the Saudi Arabian coral...

Enhancement of mechanical and tribological properties of SiC- and CB-reinforced aluminium 7075 hybrid composites through friction stir processing

Pratip Roy, Subhash Singh & Kaushik Pal
Aluminium alloy has wide application in both aircraft and automobile industry due to its high strength and light weight benefits. In this research work, stir casting process was used for fabricating aluminium alloy 7075 reinforced by silicon carbide (SiC) and carbon black (CB) particulates. X-ray diffraction analysis, energy dispersive X-Rays analysis and field emission scanning electron microscopy (FE-SEM) confirmed the presence of SiC and CB particles and there uniform distribution in aluminium matrix. Further, as-cast...

Supplement-Appendix A.docx

Aditya Pratama
The convergence condition of bucket brigades with worker collaboration with fully and partially cross-trained workers under a three-workstation, two-worker production line

Supplementary material from “Atlantic bluefin tuna spawn at suboptimal temperatures for their offspring”

P. Reglero, A. Ortega, R. Balbín, F.J. Abascal, A. Medina, E. Blanco, F. De La Gándara, D. Alvarez-Berastegui, M. Hidalgo, L. Rasmuson, F. Alemany & Ø. Fiksen
Supplementary material from “Atlantic bluefin tuna spawn at suboptimal temperatures for their offspring”

Supplementary material from "Atlantic bluefin tuna spawn at suboptimal temperatures for their offspring"

P. Reglero, A. Ortega, R. Balbín, F.J. Abascal, A. Medina, E. Blanco, F. De La Gándara, D. Alvarez-Berastegui, M. Hidalgo, L. Rasmuson, F. Alemany & Ø. Fiksen
Life-history traits such as spawning migrations and timing of reproduction are adaptations to specific environmental constraints and seasonal cycles in many organisms' annual routines. In this study we analyse how offspring fitness constrains spawning phenology in a large migratory apex predator, the Atlantic bluefin tuna. The reproductive schedule of Atlantic bluefin tuna varies between spawning sites suggesting plasticity to local environmental conditions. Generally, temperature is considered to be the main constraint on tuna spawning phenology....

Supplementary material from "Atlantic bluefin tuna spawn at suboptimal temperatures for their offspring"

P. Reglero, A. Ortega, R. Balbín, F.J. Abascal, A. Medina, E. Blanco, F. De La Gándara, D. Alvarez-Berastegui, M. Hidalgo, L. Rasmuson, F. Alemany & Ø. Fiksen
Life-history traits such as spawning migrations and timing of reproduction are adaptations to specific environmental constraints and seasonal cycles in many organisms' annual routines. In this study we analyse how offspring fitness constrains spawning phenology in a large migratory apex predator, the Atlantic bluefin tuna. The reproductive schedule of Atlantic bluefin tuna varies between spawning sites suggesting plasticity to local environmental conditions. Generally, temperature is considered to be the main constraint on tuna spawning phenology....

Supplementary Result Tables from Strong social relationships are associated with decreased longevity in a facultatively social mammal

Daniel T. Blumstein, Dana M. Williams, Alexandra N. Lim, Svenja Kroeger & Julien G. A. Martin
Humans in strong social relationships are more likely to live longer because social relationships may buffer stressors and thus have protective effects. However, a shortcoming of human studies is that they often rely on self-reporting of these relationships. By contrast, observational studies of non-human animals permit detailed analyses of the specific nature of social relationships. Thus, discoveries that some social animals live longer and healthier lives if they are involved in social grooming, forage together...

Supplementary material from "Strong social relationships are associated with decreased longevity in a facultatively social mammal"

Daniel T. Blumstein, Dana M. Williams, Alexandra N. Lim, Svenja Kroeger & Julien G.A. Martin
Humans in strong social relationships are more likely to live longer because social relationships may buffer stressors and thus have protective effects. However, a shortcoming of human studies is that they often rely on self-reporting of these relationships. By contrast, observational studies of non-human animals permit detailed analyses of the specific nature of social relationships. Thus, discoveries that some social animals live longer and healthier lives if they are involved in social grooming, forage together...

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