bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pd‐initiated polymerization of diazo compounds bearing dialkoxyphosphinyl group and hydrolysis of the resulting polymers and oligomers to afford phosphonic acid‐containing products
Authors: Shimomoto Hiroaki , Oda Akira , Kanayama Motoki , Sako Tomoya , Itoh Tomomichi , Ihara Eiji , Hoshikawa Naohiro , Koiwai Akihiko , Hasegawa Naoki 
Published: January 2016

ABSTRACTPd‐initiated polymerization and oligomerization of diazo compounds containing a dialkoxyphosphinyl group are described. Polymerization of 2‐dialkoxyphosphinylethyl diazoacetates with π‐allylPdCl‐based initiating systems afforded CC main chain polymers bearing phosphonate on each main chain carbon atom. The quantitative transformation of the side chain phosphonate to phosphonic acid resulted in the formation of water soluble polymers having the acid groups accumulated around their main chains, although the carbonyl ester linkage in the side chain was cleaved via intramolecular acid‐assisted hydrolysis in water at 80 °C. Pd‐initiated oligomerization of diethyl diazomethylphosphonate yielded an oligomeric product bearing diethoxyphosphiny groups directly attached to its main chain carbons, with unexpected incorporation of azo group in the main chain framework. Hydrolysis of the phosphonate of the oligomer afforded a water‐soluble product, which was revealed to show higher proton conductivity than poly(vinylphosphonic acid) under certain conditions. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016, 54, 1742–1751
Simulation of pulse responses of lithium salt‐doped poly ethyleneoxide
Authors: Liu Ao , Zeng Fei , Hu Yuandong , Lu Siheng , Dong Wenshuai , Li Xiaojun , Chang Chiating , Guo Dong 
Published: January 2016

ABSTRACTIonic migration in organic electrolytes resembles that in neural system involving signal transportation. Here, ionic dynamic simulations are applied to explore pulse responses of lithium‐doped polyethyleneoxide complexes. Two main interactions were considered: diffusion of ions and directional movement guided by an applied electric field. Frequency responses are simulated using arbitrary wave shape. It is found that redistribution of ions results in accumulation of charge and establishes a reverse inbuilt electric field controlling the discharging process and the frequency response. The charging current's wave shape is controlled mainly by contribution from the diffusion process, which strengthens the charging current in the first millisecond before weakening it. For stimulation with higher energy density (higher frequency), activation of ion channels should be considered and an active ion number is introduced to describe the process. The weights of calculated discharging current agree well with the experimental results. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2016, 54, 831–837
Silicon‐based nanocomposites for thermoelectric application
Authors: Schierning Gabi , Stoetzel Julia , Chavez Ruben , Kessler Victor , Hall Joseph , Schmechel Roland , Schneider Tom , Petermann Nils , Wiggers Hartmut , Angst Sebastian , Wolf Dietrich E. , Stoib Benedikt , Greppmair Anton , Stutzmann Martin , Brandt Martin S. 
Published: January 2016

Here we present the realization of efficient and sustainable silicon‐based thermoelectric materials from nanoparticles. We employ a gas phase synthesis for the nanoparticles which is capable of producing doped silicon (Si) nanoparticles, doped alloy nanoparticles of silicon and germanium (Ge), SixGe1–x, and doped composites of Si nanoparticles with embedded metal silicide precipitation phases. Hence, the so‐called “nanoparticle in alloy” approach, theoretically proposed in the literature, forms a guideline for the material development. For bulk samples, a current‐activated pressure‐assisted densification process of the nanoparticles was optimized in order to obtain the desired microstructure. For thin films, a laser annealing process was developed. Thermoelectric transport properties were characterized on nanocrystalline bulk samples and laser‐sintered‐thin films. Devices were produced from nanocrystalline bulk silicon in the form of p–n junction thermoelectric generators, and their electrical output data were measured up to hot side temperatures of 750 °C. In order to get a deeper insight into thermoelectric properties and structure forming processes, a 3D‐Onsager network model was developed. This model was extended further to study the p–n junction thermoelectric generator and understand the fundamental working principle of this novel device architecture.Gas phase synthesis of composite nanoparticles; nanocrystalline bulk with optimized composite microstructure; laser‐annealed thin film.
Workflow temporal verification for monitoring parallel business processes
Authors: Liu Xiao , Wang Dingxian , Yuan Dong , Wang Futian , Yang Yun 
Published: January 2016

AbstractWorkflow temporal verification is conducted to guarantee on‐time completion, which is one of the most important QoS (Quality of Service) dimensions for business processes running in the cloud. However, as today's business systems often need to handle a large number of concurrent customer requests, conventional response‐time based process monitoring strategies conducted in a one‐by‐one fashion cannot be applied efficiently to a large batch of parallel processes because of significant time overhead. Similar situations may also exist in software companies where multiple software projects are carried out at the same time by software developers. To address such a problem, based on a novel runtime throughput consistency model, this paper proposes a QoS‐aware throughput based checkpoint selection strategy, which can dynamically select a small number of checkpoints along the system timeline to facilitate the temporal verification of throughput constraints and achieve the target on‐time completion rate. Experimental results demonstrate that our strategy can achieve the best efficiency and effectiveness compared with the state‐of‐the‐art as and other representative response‐time based checkpoint selection strategies. Copyright © 2016 John Wiley & Sons, Ltd.
Interpreting DTBZ binding data in rodent: Inherent variability and compensation
Authors: Mejias Miguel , Yu Jing , Mackey Scott , Dinelle Katie , Sossi Vesna , Doudet Doris J. 
Published: January 2016

ABSTRACT[11C]‐dihydrotetrabenazine (DTBZ) Positron Emission Tomography was used to evaluate the vesicular monoamine transporter type 2 as an index of dopaminergic function in the striatum of adult Sprague‐Dawley rats obtained from two different animal sources (Charles River Laboratories [CR] or UBC's Animal Care Centre [ACC]) and later submitted to two different unilateral lesions of the nigro‐striatal pathway. The results showed a significant difference in the striatal binding potential (BPND) at baseline (before lesioning) between the CR and ACC groups providing evidence that the origin of the animals, possibly due to differences in early environmental factors or breeding conditions associated with different animal vendors plays a role in the development of the adult dopaminergic system. Further, in both animal models, an increase in DTBZ BPND was observed, after unilateral intervention, in the striatum contralateral to the lesion, likely reflecting compensatory effects. Based on these findings, we conclude that in unilateral models, the unlesioned side/hemisphere may not be an appropriate control and that care should be taken to control for the origin of the animals in any given study, especially in longitudinal and replication studies. Synapse, 2016. © 2016 Wiley Periodicals, Inc. Synapse 70:147–152, 2016. © 2016 Wiley Periodicals, Inc.
Electrochemical conversion of alcohols for hydrogen production: a short overview
Authors: Coutanceau Christophe , Baranton Stève 
Published: January 2016

In the emerging hydrogen economy, one of the major objectives is the production of electricity using fuel cells, particularly proton exchange membrane fuel cells (PEMFC). In this perspective, high purity hydrogen is needed. Hydrogen is currently mainly produced from fossil fuels (natural gas, oil, and coal) by energy‐consuming and environmentally unfriendly industrial processes that also involve complicated clean up steps for the removal of carbon monoxide and carbon dioxide. Water electrolysis (particularly the proton exchange membrane electrolysis technology, which allows higher efficiency than alkaline technology) appears to be a good candidate for the production of clean hydrogen. The use of renewable primary energy sources, such as wind, solar, tidal, etc., makes this technology greener. However, the low kinetics of water oxidation, which implies high cell voltage (i.e. high energy consumption) even when using noble metal‐based catalysts (Pt, Ru, Ir), makes this technology expensive. Biosourced alcohols can be interesting alternatives as hydrogen carriers in an electrolysis cell; their reversible oxidation potentials are much lower than that of water, ca 0.1 V versus SHE (standard hydrogen electrode) against 1.23 V versus SHE, so that the cell voltages for hydrogen production are lower (and so is the energy consumption). However, the low kinetics of alcohol oxidation in acidic media requires high Pt‐based catalyst loadings at the anode. Direct alcohol alkaline electrolysis cells can be operated with low Pt loading and even non‐noble metals. In the case of glycerol, generation of hydrogen at the cathode can be performed simultaneously with the formation of value‐added products at the anode for a more profit‐making process. WIREs Energy Environ 2016, 5:388–400. doi: 10.1002/wene.193This article is categorized under:

Bioenergy > Science and Materials
Fuel Cells and Hydrogen > Science and Materials
Energy Efficiency > Science and Materials
Fuzzy frameworks for mining data associations: fuzzy association rules and beyond
Authors: Marín N. , Ruiz M.D. , Sánchez D. 
Published: January 2016

Looking for associations in data is one of the data mining tasks that has aroused more interest in the literature. In this area, incorporating concepts of fuzzy set theory is useful in problems where imprecision and/or uncertainty appear. In most of the existing approaches, fuzzy association rules are widely seen as fuzzy rules, which are very different in nature from association rules, so problems like fuzzy inclusion and cardinality have been seldom taken into account explicitly, mostly providing ad hoc solutions for capturing semantics. In contrast, in this study we have taken the more general and natural approach of considering the elements of the association rule mining framework and studying possible and sensible fuzzy extensions, referred here as fuzzy frameworks for mining associations. As fuzzy frameworks are abstract mathematical models, another key contribution of the article is the notion of interpretations as mappings between fuzzy frameworks and specific datasets. This general analysis of the field is completed with a study of various important aspects that arise when proposing quality measures in a fuzzy environment, as well as those related to computational issues. The work also includes a review of the fuzzy framework that arises from fuzzy transactions regarded as fuzzy subsets of items, and shows that many of the approaches on fuzzy association rules that exist in the literature can be placed in the context of a proper interpretation of that framework. WIREs Data Mining Knowl Discov 2016, 6:50–69. doi: 10.1002/widm.1176This article is categorized under:

Fundamental Concepts of Data and Knowledge > Key Design Issues in Data Mining
Technologies > Association Rules
Spiritual Exploration in the Prenatal Genetic Counseling Session
Authors: Sagaser Katelynn G. , Shahrukh Hashmi S. , Carter Rebecca D. , Lemons Jennifer , Mendez‐Figueroa Hector , Nassef Salma , Peery Brent , Singletary Claire N. 
Published: January 2016

AbstractReligion and spirituality (R/S) are important components of many individuals’ lives, and spirituality is often employed by women coping with pregnancy complications. To characterize how prenatal genetic counselors might address spiritual issues with patients, 283 English and Spanish speaking women receiving prenatal genetic counseling in Houston, Texas were surveyed post‐counseling using both the Brief RCope and questions regarding interest in spiritual exploration. Genetic counselors were concurrently surveyed to identify religious/spiritual language used within sessions and perceived importance of R/S. Genetic counselors were significantly more likely to identify R/S as important to a patient when patients used religious/spiritual language (p< 0.001). Conversely, when no religious/spiritual terms were present, the counselor felt uncertain about the importance of R/S 63 % of the time. However, 67 % of patients reported that they felt comfortable sharing their faith as it relates to their pregnancy, and 93 % reported using positive religious coping. Less than 25 % reported a desire for overt religious actions such as prayer or scripture exploration. Therefore, most patients’ desires for spiritual exploration center in the decision making and coping processes that are in line with the genetic counseling scope of practice. Thus, counselors should feel empowered to incorporate spiritual exploration into their patient conversations.
Generalized Fiducial Inference for Binary Logistic Item Response Models
Authors: Liu Yang , Hannig Jan 
Published: January 2016

AbstractGeneralized fiducial inference (GFI) has been proposed as an alternative to likelihood-based and Bayesian inference in mainstream statistics. Confidence intervals (CIs) can be constructed from a fiducial distribution on the parameter space in a fashion similar to those used with a Bayesian posterior distribution. However, no prior distribution needs to be specified, which renders GFI more suitable when no a priori information about model parameters is available. In the current paper, we apply GFI to a family of binary logistic item response theory models, which includes the two-parameter logistic (2PL), bifactor and exploratory item factor models as special cases. Asymptotic properties of the resulting fiducial distribution are discussed. Random draws from the fiducial distribution can be obtained by the proposed Markov chain Monte Carlo sampling algorithm. We investigate the finite-sample performance of our fiducial percentile CI and two commonly used Wald-type CIs associated with maximum likelihood (ML) estimation via Monte Carlo simulation. The use of GFI in high-dimensional exploratory item factor analysis was illustrated by the analysis of a set of the Eysenck Personality Questionnaire data.
Psychological distress and frailty transitions over time in community-dwelling older adults
Authors: McHugh J. E. , Dowling M. , Butler A. , Lawlor B. A. 
Published: January 2016

ObjectivesPhysical health and, in particular, frailty may be associated with psychological factors among older adults. We aimed to investigate the relationships between aspects of psychological distress and progression of frailty over time among older adults.MethodsWe used a longitudinal observational study design with 624 participants aged over 60 years (mean age=72.75, s.d.=7.21, 68% female) completing a baseline comprehensive biopsychosocial geriatric assessment, and 447 returning for a follow-up assessment 2 years later. Aspects of psychological distress, physical health, and frailty were analysed for the purposes of this study. We employed a series of logistic regression analyses to determine psychological predictors of changing states of aspects of frailty over time.ResultsWith individual components of frailty, neuroticism and age predicted negative transitions of exhaustion and grip strength, respectively, whereas age alone was a predictor of transitions in overall frailty scores based on four components.ConclusionWe conclude that neuroticism and age may impact upon physical frailty and its progression over time in an ageing population. These findings may reflect the tendency for those with high levels of neuroticism to endorse negative symptoms, or alternatively, neuroticism may result in exhaustion via worry in an older population. Further research is required to further elucidate this relationship.
Revision of the first therocephalian,TheriognathusOwen (Therapsida: Whaitsiidae), and implications for cranial ontogeny and allometry in nonmammaliaform eutheriodonts
Authors: Huttenlocker Adam K. , Abdala Fernando 
Published: January 2016

AbstractHistorically, the whaitsiid therocephalianTheriognathusOwen was one of the earliest described nonmammalian therapsids, its morphology helping to link phylogenetically the Paleozoic synapsids of North America and southern Africa to their mammalian successors. However, decades of taxonomic over-splitting and superficial descriptions obscured the morphologic diversity of the genus, hindering its utility as a study system for the evolution of synapsid cranial function as well as its biostratigraphic significance in the Late Permian of southern Africa. Here, we revise the status and provenance of all the known specimens ofTheriognathusfrom South Africa, Tanzania, and Zambia. We present both qualitative and quantitative support for the presence of a single morphospecies as proposed by some authors. Proportional differences in skulls that were previously ascribed to different morphotypes (‘Aneugomphius,’ ‘Notosollasia,’ ‘Moschorhynchus,’ and ‘Whaitsia’) are largely size-related and allometric trends are considered here in the context of jaw function and prey prehension. Our results suggest that the single species,Theriognathus microps, represented one of the most abundant Late Permian therocephalians in southern Africa and is consequently a potentially useful biostratigraphic marker for the upperCistecephalus-lowerDicynodonAssemblage Zone transition (i.e., late Wuchiapingian). The wide range of preserved sizes in conjunction with recent paleohistological evidence supports that individuals spent much of their lives in an actively-growing, subadult phase. LaterDicynodonAssemblage Zone records (e.g., upper Balfour Formation) are unconfirmed as the genus was likely replaced by other theriodont predators (e.g.,Moschorhinus) leading up to the Permo-Triassic boundary in the Karoo Basin of South Africa.
The archaeology of the Spanish Colonial experience in South America
Authors: Schaedel Richard P. 
Published: January 2016

Reluctant as one is to admit it, the 12,000 years of North America’s past prior to Columbus are still regarded as irrelevant to mainstream American history. BRIANF AGAN( 1990: 33)IntroductionBrian Fagan’s declaration about the ‘clash of cultures’ applies to contemporary Mesoamericans and South Americans as it does to North Americans. We have passed beyond the age of the ‘Black Legend’, perhaps not entirely, but enough to regard the ‘Columbian exchange’ (Crosby 1973) as a massive confrontation of peoples, the emotional reverberations of which have not entirely disappeared, but whose effects a few of us can measure with scientific objectivity.
Levels of infection with the lungworm Angiostrongylus cantonensis in terrestrial snails from Thailand, with Cryptozona siamensis as a new intermediate host
Authors: Vitta A. , Polsut W. , Fukruksa C. , Yimthin T. , Thanwisai A. , Dekumyoy P. 
Published: January 2016

AbstractAngiostrongylus cantonensis is primarily considered an emerging infectious agent of eosinophilic meningitis or meningoencephalitis with a worldwide distribution. Rodents and snails are important invasive hosts for transmission and expansion of A. cantonensis. The objective of this study was to investigate infection levels of A. cantonensis in snails, the most important natural intermediate host. Our study location was Mueang Kamphaeng Phet district, Kamphaeng Phet Province, and was undertaken between October and December 2012. A total of 2228 freshwater and terrestrial snails were collected, comprising 1119 Filopaludina spp., 409 Pomacea caniculata, 275 Achatina fulica and 425 Cryptozona siamensis. Angiostrongylus larvae were isolated by artificial digestion methods following Baermann's techniques. A low prevalence and intensity of A. cantonensis were observed in A. fulica, while higher numbers were found in C. siamensis. None of the Filopaludina spp. and Pomacea caniculata were infected with A. cantonensis. Molecular characterization was performed by analysing the 264 bp of cytochrome c oxidase subunit I (COI). Three COI sequences of Angiostrongylus were identical to A. cantonensis with 91–99% identity. Cryptozona siamensis has not previously been recorded as an intermediate host for A. cantonensis in Thailand. The infection of A. cantonensis identified in the natural intermediate hosts is new and important information to assist in the prevention and control of human angiostrongyliasis.
The role of geminates in infants' early word production and word-form recognition
Authors: VIHMAN MARILYN , MAJORANO MARINELLA 
Published: January 2016

AbstractInfants learning languages with long consonants, or geminates, have been found to ‘overselect’ and ‘overproduce’ these consonants in early words and also to commonly omit the word-initial consonant. A production study with thirty Italian children recorded at 1;3 and 1;9 strongly confirmed both of these tendencies. To test the hypothesis that it is the salience of the medial geminate that detracts attention from the initial consonant we conducted three experiments with 11-month-old Italian infants. We first established baseline word-form recognition for untrained familiar trochaic disyllables and then tested for word-form recognition, separately for words with geminates and singletons, after changing the initial consonant to create nonwords from both familiar and rare forms. Familiar words with geminates were recognized despite the change, words with singletons were not. The findings indicate that a feature occurring later in the word affects initial consonant production and perception, which supports the whole-word phonology model.
Les aidantes professionnelles à domicile dans l’accompagnement de personnes âgées atteintes de la maladie d’Alzheimer ou présentant des conduites d’alcoolisation : évaluation qualitative et réflexions cliniques
Authors: Moscato Alba , Soulas Thierry , Varescon Isabelle 
Published: January 2016

ABSTRACTIn France, few studies have investigated the experience of home caregivers with elderly people suffering from Alzheimer’s disease or alcoholic behavior. The aim of this study was to describe caregivers' understanding of these disorders to identify their difficulties and satisfactions in relation to their role. Seventeen social care workers were interviewed and the content was analysed using a general inductive approach. Regarding misuse or abuse of alcohol, they expressed a feeling of helplessness, and put forth their experience and skills to communicate with the receiver of care. Concerning Alzheimer’s disease, they expressed worries regarding its progression They identified themselves with the elder’s anxiety, which induced fears regarding their own old age. All of them were satisfied by the care they provided and by the possibility of acquiring experience. Results could be of use in supporting clinical preventive actions for professional home caregivers dealing with these two disorders that can occur in the course of the ageing process.