bluuebunny/crossref_metadata_2025_split huggingface dataset:
Social Networks and Individual Creativity: The Role of Individual Differences
Authors: Kim Sang Kyun , Shin Shung Jae , Shin Jiseon , Miller Douglas R. 
Published: June 2016

AbstractThis article addresses the theoretical limitations of social network theory as it applies to individual creativity. Social network theory implicitly assumes that social interactions influence creativity identically for all individuals in all circumstances. We argue that the extent to which individuals take advantage of their social ties may vary depending on individual characteristics, based on the componential model and the investment theory of creativity. Building on an interactional approach, this article explores the role of individual differences in the relationship between social networks and individual creativity and proposes that weak ties enhance creativity when information recipients are highly open to experience, have more domain knowledge, have an innovative style, and are intrinsically motivated. This article contributes to the current debate on the relationship between social networks and individual creativity by rationalizing the conditions under which weak ties enhance individual creativity. Implications for business managers and suggestions for future research are also discussed.
Effects of brown seaweed polyphenols, α‐tocopherol, and ascorbic acid on protein oxidation and textural properties of fish mince (Pagrosomus major) during frozen storage
Authors: Wang Tiantian , Li Zhenxing , Yuan Fangzhou , Lin Hong , Pavase Tushar Ramesh 
Published: June 2016

AbstractBACKGROUNDFrozen storage of minced fish is currently one of the most important techniques to maintain its functional properties. However, some deterioration does occur during frozen storage and cause quality loss. The effects of brown seaweed polyphenols, α‐tocopherol, and ascorbic acid on lipid and protein oxidation and textural properties of red sea bream (Pagrosomus major) during 90 days of frozen storage at −18 °C were investigated.RESULTSAll added antioxidants at 1 g kg−1 resulted in significantly lower thiobarbituric acid‐reactive substances (TBARS) compared to the control during the 45 days of frozen storage. The antioxidants were also effective in retarding protein oxidation concerning to total sulfhydryl content and protein carbonyl content. Brown seaweed polyphenols and α‐tocopherol significantly retarded the inactivation of Ca2+‐ATPase activity during the first 45 days, whereas ascorbic acid had no such effect. The antioxidant activity showed either an invariable or decrease trend after 45 days storage. Adding antioxidants had a significant effect on the breaking force of the gels during the frozen storage period.CONCLUSIONThese results indicate that brown seaweed polyphenols and α‐tocopherol can be used to prevent oxidative reactions and thus maintain the structure of the gel formed by fish mince during frozen storage. © 2016 Society of Chemical Industry
Waterbird nest‐site selection is influenced by neighboring nests and island topography
Authors: Hartman C. Alex , Ackerman Joshua T. , Takekawa John Y. , Herzog Mark P. 
Published: June 2016

ABSTRACTAvian nest‐site selection is influenced by factors operating across multiple spatial scales. Identifying preferred physical characteristics (e.g., topography, vegetation structure) can inform managers to improve nesting habitat suitability. However, social factors (e.g., attraction, territoriality, competition) can complicate understanding physical characteristics preferred by nesting birds. We simultaneously evaluated the physical characteristics and social factors influencing selection of island nest sites by colonial‐nesting American avocets (Recurvirostra americana) and Forster's terns (Sterna forsteri) at 2 spatial scales in San Francisco Bay, 2011–2012. At the larger island plot (1 m2) scale, we used real‐time kinematics to produce detailed topographies of nesting islands and map the distribution of nests. Nesting probability was greatest in island plots between 0.5 m and 1.5 m above the water surface, at distances <10 m from the water's edge, and of moderately steep (avocets) or flat (terns) slopes. Further, avocet and tern nesting probability increased as the number of nests initiated in adjacent plots increased up to a peak of 11–12 tern nests, and then decreased thereafter. Yet, avocets were less likely to nest in plots adjacent to plots with nesting avocets, suggesting an influence of intra‐specific territoriality. At the smaller microhabitat scale, or the area immediately surrounding the nest, we compared topography, vegetation, and distance to nearest nest between nest sites and paired random sites. Topography had little influence on selection of the nest microhabitat. Instead, nest sites were more likely to have vegetation present, and greater cover, than random sites. Finally, avocet, and to a lesser extent tern, nest sites were closer to other active conspecific or heterospecific nests than random sites, indicating that social attraction played a role in selection of nest microhabitat. Our results demonstrate key differences in nest‐site selection between co‐occurring avocets and terns, and indicate the effects of physical characteristics and social factors on selection of nesting habitat are dependent on the spatial scale examined. Moreover, these results indicate that islands with abundant area between 0.5 m and 1.5 m above the water surface, within 10 m of the water's edge, and containing a mosaic of slopes ranging from flat to moderately steep would provide preferred nesting habitat for avocets and terns. © 2016 The Wildlife Society.
Comparatively Thermal and Crystalline Study of Poly(methyl‐methacrylate)/Polyacrylonitrile Hybrids: Core–Shell Hollow Fibers, Porous Fibers, and Thin Films
Authors: Huang Jiangnan , Cao Yonghai , Huang Zhongyuan , Imbraguglio Samantha A. , Wang Zhe , Peng Xiangfang , Guo Zhanhu 
Published: June 2016

The polyacrylonitrile/polymethyl‐methacrylate (PMMA/PAN) porous fibers, core–shell hollow fibers, and porous thin films are prepared by coaxial electrospinning, single electrospinning, and spin‐coating technologies, respectively. The different morphologies arising from different processes display great influences on their thermal and crystalline properties. The adding of PMMA causes porous structure due to the microphase‐separation structure of immiscible PMMA and PAN phases. The lower weight loss, higher degradation temperature, and glass‐transition temperatures of porous thin films than those of porous fibers and core–shell hollow fibers are obtained, evidencing that the polymer morphologies produced from the different process can efficiently influence their physical properties. The orthorhombic structure of PAN crystals are found in the PMMA/PAN porous thin films, but the rotational disorder PAN crystals due to intermolecular packing are observed in the PMMA/PAN porous fibers and core–shell hollow fibers, indicating that different processes cause different types of PAN crystals.
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Understanding the Formation of Linear Olefin Block Copolymers with Dynamic Monte Carlo Simulation
Authors: Tongtummachat Tiprawee , Anantawaraskul Siripon , Soares João B. P. 
Published: June 2016

Chain‐shuttling polymerization with dual catalysts has introduced a new class of polyolefins called olefin block copolymers (OBCs). A dynamic Monte Carlo model to describe the kinetics of chain‐shuttling copolymerization in a semi‐batch reactor is developed, and used it to study how the microstructure of OBCs with different numbers of blocks per chain evolves during polymerization. The model also describes how chain‐shuttling rate constants and concentration of chain‐shuttling agent affect populations of OBCs with different numbers of blocks per chain. These model predictions are useful to make OBCs with precisely designed microstructures.image
A change in objective sleep duration is associated with a change in the serum adiponectin level of women with overweight or obesity undergoing weight loss intervention
Authors: Sawamoto R. , Nozaki T. , Furukawa T. , Tanahashi T. , Morita C. , Hata T. , Nakashima M. , Komaki G. , Sudo N. 
Published: June 2016

SummaryBackgroundAlthough the serum adiponectin level is inversely correlated to body mass index and closely associated with obesity and related diseases, neither the impact of weight loss on the adiponectin level nor other factors that might influence the adiponectin level during weight loss intervention are well documented.ObjectiveThe objective of the study is to assess the change in the serum adiponectin level during weight loss intervention and to determine if sleep parameters affect the serum adiponectin level.MethodsNinety women with overweight or obesity aged 25 to 65 years completed a 7‐month cognitive behavioural therapy based weight loss intervention that included dieting, exercise and stress management. Serum adiponectin level, body fat percent, symptoms of depression and anxiety and objective sleep parameters, assessed by actigraphy, were measured at baseline and at the end of the intervention.ResultsThe serum adiponectin level was significantly increased after the weight loss intervention (P < 0.001). In a multiple regression analysis, the change of the adiponectin level was positively associated with the magnitude of body fat loss (β = −0.317, P < 0.001) and an increase of sleep minutes (β = 0.210, P = 0.043).ConclusionAn increase in objective sleep duration was related to a significantly increased serum adiponectin level independently of the change of body fat during the weight loss intervention.
Aramid–multiwalled carbon nanotube nanocomposites: effect of compatibilization through oligomer wrapping of the nanotubes
Authors: Ahmad Zahoor , Al‐Sagheer Fakhreia , Shiju Jessy 
Published: June 2016

AbstractAramid–multiwalled carbon nanotube (MWCNT) nanocomposites with different CNT loadings were prepared by the solution‐blending technique. Aramid oligomeric chains having reactive amine end‐groups were covalently grafted and wrapped over the surface of acid‐functionalized MWCNTs. The presence of functional groups and surface modification of MWCNTs were studied using Raman, Fourier transform infrared and X‐ray photoelectron spectroscopic and transmission/scanning electron microscopic techniques. Addition of these MWCNTs resulted in a homogeneous dispersion throughout the aramid matrix. Dynamic mechanical thermal analysis showed an increase in the storage modulus and the glass transition temperature involved with α‐relaxations on CNT loading. The coefficient of thermal expansion (CTE) of aramid was reduced on loading with such CNTs. Strong interfacial interactions of the matrix with the surface‐modified CNTs reduced the stress‐transfer problem in the composite material and resulted in higher modulus of 4.26 GPa and a glass transition temperature of 338.5 °C, whereas the CTE was reduced to 101.8 ppm °C−1 on addition of only 2.5 wt% CNTs in the aramid matrix. © 2016 Society of Chemical Industry
Synthesis of coil‐comb block copolymers containing polystyrene coil and poly(methyl methacrylate) side chains via atom transfer radical polymerization
Authors: Shin Seonhee , Moon Seohyun , Seo Myungeun , Kim Sang Youl 
Published: June 2016

ABSTRACTA series of polystyrene‐b‐(poly(2‐(2‐bromopropionyloxy) styrene)‐g‐poly(methyl methacrylate)) (PS‐b‐(PBPS‐g‐PMMA)) and polystyrene‐b‐(poly(2‐(2‐bromopropionyloxy)ethyl acrylate)‐g‐poly(methyl methacrylate)) (PS‐b‐(PBPEA‐g‐PMMA)) as new coil‐comb block copolymers (CCBCPs) were synthesized by atom transfer radical polymerization (ATRP). The linear diblock copolymer polystyrene‐b‐poly(4‐acetoxystyrene) and polystyrene‐b‐poly(2‐(trimethylsilyloxy)ethyl acrylate) PS‐b‐P(HEA‐TMS) were obtained by combining ATRP and activators regenerated by electron transfer (ARGET) ATRP. Secondary bromide‐initiating sites for ATRP were introduced by liberation of hydroxyl groups via deprotection and subsequent esterification reaction with 2‐bromopropionyl bromide. Grafting of PMMA onto either the PBPS block or the PBPEA block via ATRP yielded the desired PS‐b‐(PBPS‐g‐PMMA) or PS‐b‐(PBPEA‐g‐PMMA).1H nuclear magnetic resonance spectroscopy and gel permeation chromatography data indicated the target CCBCPs were successfully synthesized. Preliminary investigation on selected CCBCPs suggests that they can form ordered nanostructures via microphase separation. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem.2016,54, 2971–2983
Migration, skill, and the transformation of social networks in the pre‐Hispanic Southwest
Authors: Mills Barbara J. , Clark Jeffery J. , Peeples Matthew A. 
Published: June 2016

AbstractMigration restructures interaction at different social and spatial scales and has the potential to create deep and lasting inequalities between migrants and hosts. But migrants may also create relationships that mediate inequalities and assume positions of power. We examine how migration restructured social relationships in the late pre‐Hispanic U.S. Southwest and argue that skilled migrant potters were responsible for both technological innovation and the success of migrants in their new homes. The Southwest has well‐documented examples of a diaspora from northeastern Arizona to destinations to the south. Using social network analyses conducted by the Southwest Social Networks Project, we investigate the position of migrant settlements vis‐à‐vis their hosts. Migration transformed social networks fromad1200 to 1450 as newcomers became increasingly central by maintaining relationships through bonds of shared heritage and creating social positions for themselves within host communities. Comparison of early and late periods shows how migrants were initially weakly tied to their hosts, which led to stronger ties in a significant portion of the Southwest. These ties indicate widespread interactions characteristic of a social movement. Skilled migrants innovated the production of ceramics that became highly valued in their respective destinations, showing how technological transformations, migration, and skill intersected.
HEOM‐QUICK: a program for accurate, efficient, and universal characterization of strongly correlated quantum impurity systems
Authors: Ye LvZhou , Wang Xiaoli , Hou Dong , Xu Rui‐Xue , Zheng Xiao , Yan YiJing 
Published: June 2016

Accurate characterization of correlated electronic states, as well as their evolution under external fields or in dissipative environment, is essentially important for understanding the properties of strongly correlated transition‐metal materials involving spin‐unpaired d or f electrons. This paper reviews the development and applications of a numerical simulation program, the Hierarchical Equations of Motion for QUantum Impurity with a Correlated Kernel (HEOM‐QUICK), which allows for an accurate and universal characterization of strongly correlated quantum impurity systems. The HEOM‐QUICK program implements the formally exact HEOM formalism for fermionic open systems. Its simulation results capture the combined effects of system‐environment dissipation, many‐body interactions, and non‐Markovian memory in a nonperturbative manner. The HEOM‐QUICK program has been employed to explore a wide range of static and dynamic properties of various types of quantum impurity systems, including charge or spin qubits, quantum dots, molecular junctions, and so on. It has also been utilized in conjunction with first‐principles methods such as density‐functional theory methods to study the correlated electronic structure of adsorbed magnetic molecules. The advantages in its accuracy, efficiency, and universality have made the HEOM‐QUICK program a reliable and versatile tool for theoretical investigations on strong electron correlation effects in complex materials. WIREs Comput Mol Sci 2016, 6:608–638. doi: 10.1002/wcms.1269This article is categorized under:

Structure and Mechanism > Computational Materials Science
Software > Simulation Methods
Physical Properties of Soybean Oleogels and Oil Migration Evaluation in Model Praline System
Authors: Si Huaguang , Cheong Ling‐Zhi , Huang Jianhua , Wang Xingguo , Zhang Hong 
Published: June 2016

AbstractThe present study examined the physical properties of soybean oleogels and commercial confectionery filling fats and evaluated the oil migration properties in model praline systems. Soybean oleogels were prepared using different oleogelators namely monoglyceride (MAG oleogels) and a mixture of sorbitan tri‐stearate (STS) with lecithin (50:50) (Lec‐STS oleogels). Both MAG oleogels and Lec‐STS oleogels demonstrated a flat solid fat content (SFC) profile with zero SFC at 40 °C. At low temperature, MAG oleogels and Lec‐STS oleogels demonstrated a non‐flowing gel‐like property due to the ability of the oleogelator to entrap liquid oil. In addition, oleogels also showed thixotropic behavior indicating the possible capability to prevent migration of filling fats to coatings and also good flow ability during pumping though manufacturing equipment. The textural property of oleogels also did not change significantly upon storage indicating good structural stability. When used as in a model praline system, oleogels demonstrated a migration delaying property.
Adolescents with Cancer and Occupational Deprivation in Hospital Settings: A Qualitative Study
Authors: Miralles Pedro Moruno , Ramón Nieves Cedenilla , Valero Sandra Aranda 
Published: June 2016

Objective/Background The aim of this article was to analyze the needs of hospitalized adolescents with cancer in relation to the performance of meaningful activities as well as to explore the possible scenarios of occupational deprivation in hospital paediatric wards. Methods The study follows an ethnographical research approach using two techniques: participant observation and in-depth interviews, with constant comparison by data triangulation. Eight adolescents diagnosed with cancer aged between 15 years and 19 years (5 males and 3 females) were recruited from Toledo and Madrid in Spain. Results Five themes revealing the needs of adolescents with cancer in hospital environments were identified: (a) educational needs, (b) leisure needs, (c) physical space of the rooms, (d) interaction with medical personnel, and (e) lack of specific wards for adolescents. Conclusion The lack of variety and availability of educational activities and leisure, and the subsequent changes of the individual physical, social, and cultural environments could cause situations of occupational deprivation, and also affect the health and quality of life of the individuals.
Marcinkiewicz law of large numbers for outer products of heavy-tailed, long-range dependent data
Authors: Kouritzin Michael A. , Sadeghi Samira 
Published: June 2016

Abstract
The Marcinkiewicz strong law, limn→∞(1 / n1/p)∑k=1n(Dk - D) = 0 almost surely with p ∈ (1, 2), is studied for outer products Dk = {XkX̅kT}, where {Xk} and {X̅k} are both two-sided (multivariate) linear processes (with coefficient matrices (Cl), (C̅l) and independent and identically distributed zero-mean innovations {Ξ} and {Ξ̅}). Matrix sequences Cl and C ̅l can decay slowly enough (as |l| → ∞) that {Xk,X ̅k} have long-range dependence, while {Dk} can have heavy tails. In particular, the heavy-tail and long-range-dependence phenomena for {Dk} are handled simultaneously and a new decoupling property is proved that shows the convergence rate is determined by the worst of the heavy tails or the long-range dependence, but not the combination. The main result is applied to obtain a Marcinkiewicz strong law of large numbers for stochastic approximation, nonlinear function forms, and autocovariances.
Probabilistic cellular automata with general alphabets possessing a Markov chain as an invariant distribution
Authors: Casse Jérôme 
Published: June 2016

Abstract
This paper is devoted to probabilistic cellular automata (PCAs) on N,Z or Z / nZ, depending on two neighbors with a general alphabet E (finite or infinite, discrete or not). We study the following question: under which conditions does a PCA possess a Markov chain as an invariant distribution? Previous results in the literature give some conditions on the transition matrix (for positive rate PCAs) when the alphabet E is finite. Here we obtain conditions on the transition kernel of a PCA with a general alphabet E. In particular, we show that the existence of an invariant Markov chain is equivalent to the existence of a solution to a cubic integral equation. One of the difficulties in passing from a finite alphabet to a general alphabet comes from the problem of measurability, and a large part of this work is devoted to clarifying these issues.
Optimal financing and dividend distribution in a general diffusion model with regime switching
Authors: Zhu Jinxia , Yang Hailiang 
Published: June 2016

Abstract
We study the optimal financing and dividend distribution problem with restricted dividend rates in a diffusion type surplus model, where the drift and volatility coefficients are general functions of the level of surplus and the external environment regime. The environment regime is modeled by a Markov process. Both capital injection and dividend payments incur expenses. The objective is to maximize the expectation of the total discounted dividends minus the total cost of the capital injection. We prove that it is optimal to inject capital only when the surplus tends to fall below 0 and to pay out dividends at the maximal rate when the surplus is at or above the threshold, dependent on the environment regime.
A TRACE FORMULA FOR HECKE OPERATORS ON VECTOR-VALUED MODULAR FORMS
Authors: RAULF NICOLE , STEIN OLIVER 
Published: June 2016

AbstractWe present a ready to compute trace formula for Hecke operators on vector-valued modular forms of integral weight for SL2(ℤ) transforming under the Weil representation. As a corollary, we obtain a ready to compute dimension formula for the corresponding space of vector-valued cusp forms, which is more general than the dimension formulae previously published in the vector-valued setting.
LOCALCr-RIGHT EQUIVALENCE OFCr+1FUNCTIONS
Authors: MIGUS PIOTR 
Published: June 2016

AbstractLetf,g:(ℝn, 0) → (ℝ, 0) beCr+1functions,r∈ ℕ. We will show that if ∇f(0)=0 and there exist a neighbourhoodUof 0 ∈ ℝnand a constantC> 0 such that$$\begin{equation*} \left|\partial^m(g-f)(x)\right| &#x2264; C \left|\nabla f(x)\right|^{r+2-|m|} \quad \textrm{ for } x\in U, \end{equation*} $$and for anym∈ ℕ0nsuch that |m| ≤r, then there exists aCrdiffeomorphism ϕ:(ℝn, 0) → (ℝn, 0) such thatf=g° ϕ in a neighbourhood of 0 ∈ ℝn.
Capital Market Efficiency and Arbitrage Efficacy
Authors: Akbas Ferhat , Armstrong Will J. , Sorescu Sorin , Subrahmanyam Avanidhar 
Published: June 2016

AbstractEfficiency in the capital markets requires that capital flows are sufficient to arbitrage anomalies away. We examine the relation between flows to a quantitative (quant) strategy that is based on capital market anomalies and the subsequent performance of this strategy. When these flows are high, quant funds are able to implement arbitrage strategies more effectively, which in turn leads to lower profitability of market anomalies in the future, and vice versa. Thus, the degree of cross-sectional equity market efficiency varies across time with the availability of arbitrage capital.
The Morley tricorn a solid figure constructed from the diagram for Morley's theorem
Authors: Macfarlane A. J. 
Published: June 2016

Morley's theorem states that the points of intersection of adjacent trisectors of the angles of any triangle are the vertices of an equilateral triangle, known as Morley's triangle. See Figure 1.Concise proofs of the theorem are given in recent papers [1, 2]. A good picture of important previous work can be obtained by looking at [3, p. 1999], and examining references cited there.