bluuebunny/crossref_metadata_2025_split huggingface dataset:
Survey modes comparison in contingent valuation: Internet panels and mail surveys
Authors: Ryan Mandy , Mentzakis Emmanouil , Matheson Catriona , Bond Christine 
Published: December 2019

AbstractStated preferences methods are extensively applied in health economics to elicit preferences. Although mailed surveys were commonly used to collect data, internet panel (IP) surveys are being increasingly used. This raises questions about the validity of responses and estimated willingness‐to‐pay (WTP) values generated from IP surveys. We conduct the first study in health to compare a contingent valuation IP survey with a mailed survey using the electoral roll. Our IP has a higher response rate and lower item missing response rate. The difference is reduced but remains when restricting comparisons with valid WTPs. Sample characteristics differ, with significant differences between modes for gender, age, income, and attitudes and knowledge. Although difference in WTP values exist, with the IP resulting in higher values, we find limited evidence that such differences are statistically significant. The mail survey has lower initial cost per response; however, once restricting samples to valid WTP responses with nonmissing respondent information, the cost per response across modes is similar. Our results, suggesting that IPs generate valid and cost‐effective values, are encouraging as researchers move increasingly to IPs to collect preference data.
Does pre‐packed bankruptcy create value? An empirical study of postbankruptcy employment retention in The Netherlands
Authors: Aalbers Henrick , Adriaanse Jan , Boon Gert‐Jan , van der Rest Jean‐Pierre , Vriesendorp Reinout , Van Wersch Frank 
Published: December 2019

AbstractIn recent years, there has been growing interest in whether pre‐packed bankruptcy can be a mechanism through which firms facing imminent insolvency can preserve value. Although an extensive body of literature exists on “pre‐packs,” whether such techniques really preserve value remains ambiguous. By analysing bankruptcy proceedings filed with Dutch courts in the period 2012–2018 through the lenses of real options and debt overhang theory, we examined employment retention postbankruptcy as a consequence of the type of bankruptcy proceeding (pre‐packed bankruptcy and conventional bankruptcy) and the severity of prebankruptcy financial distress. The results show that in the Netherlands, a pre‐packed bankruptcy, when compared with a conventional bankruptcy proceeding, positively impacts employment retention rates after bankruptcy. The severity of financial distress before bankruptcy does not affect employment retention rates postbankruptcy. This implies that despite the amount of resource slack, the preservation of employee value is better served under a pre‐packed bankruptcy than a conventional bankruptcy proceeding. This finding is important for insolvency practice, as up to 22 June 2017, employee rights in the Netherlands (including redundancy) were not considered to be automatically transferred to the firm acquiring the bankrupt debtor's assets when a pre‐packed bankruptcy was applied. Implications for insolvency regulation and practice are discussed.
Access barriers to genetic services for Spanish‐speaking families in states with rapidly growing migrant populations
Authors: Gene Hallford Henry , Coffman Mary Ann , Obregon‐Tito Alexandra Juana , Morales Anayeli Herrera , Williamson Dean Lori 
Published: December 2019

AbstractHispanics are among the fastest growing U.S. population segments, accounting for the majority of growth since 2000. Hispanics are heterogeneous and include foreign‐born and U.S. citizens, monolingual fluent English speakers, monolingual Spanish‐speakers, multilingual speakers, and socioeconomically and educationally diverse subgroups. States within the central United States (U.S.), referred to as the Heartland, have numerically small Hispanic populations, but rapidly growing Hispanic populations that are expanding faster than the overall U.S. Hispanic population. The Hispanic populations across the U.S. are widely known to be medically underserved. This qualitative study identifies barriers native Spanish‐speakers experience when locating and accessing genetic services for their children. After providing informed consent, 29 parents in three Heartland states were interviewed and asked about their awareness of available genetic services, utilization of available services and difficulties they encountered when using them. Interviewees reported delayed genetic service referrals, limited availability and inadequate interpretation services, verbal and written communication problems during clinic visits, culturally incongruent healthcare expectations and limited appreciation for how genetic services benefit them. Necessary efforts to understand and improve genetic service access and usefulness for Hispanic populations are underway in the Heartland and elsewhere and should continue to be expanded.
A novel electroconductive interface based on Fe3O4 magnetic nanoparticle and cysteamine functionalized AuNPs: Preparation and application as signal amplification element to minoring of antigen‐antibody immunocomplex and biosensing of prostate cancer
Authors: Farshchi Fatemeh , Hasanzadeh Mohammad , Mokhtarzadeh Ahad 
Published: December 2019

AbstractIn this study, a novel electroconductive interface was prepared based on Fe3O4 magnetic nanoparticle and cysteamine functionalized gold nanoparticle. The engineered interface was used as signal amplification substrate in the electrochemical analysis of antibody‐antigen binding. For this purpose, biotinilated‐anti‐prostate‐specific antigen (PSA) antibody was bioconjugated with iron oxide magnetic nanoparticles (Fe3O4) and drop‐casted on the surface of glassy carbon electrode (GCE). Also, secondary antibody (HRP‐Ab2) encapsulated on gold nanoparticles caped by cysteamine was immobilized on the surface of GCE modified electrode. A transmission electron microscopy images shows that a sandwich immunoreaction was done and binding of Ab1 and Ab2 performed successfully. Various parameters of immunoassay, including the loading of magnetic nanoparticles, the amount of gold nanoparticle conjugate, and the immunoreaction time, were optimized. The detection limit of 0.001 μg. L−1 of PSA was obtained under optimum experimental conditions. It is found that such magneto‐bioassay could be readily used for simultaneous parallel detection of multiple proteins by using multiple inorganic metal nanoparticle tracers and are expected to open new opportunities for early stage diagnosis of cancer in near future.
Residual tumor volume discriminates prognosis after surgery for neuroendocrine liver metastasis
Authors: Kasai Yosuke , Hirose Kenzo , Corvera Carlos U. , Kim Grace E. , Hope Thomas A. , Shih Brandon E. , Harun Nusrat , Kim Mi‐Ok , Warren Robert S. , Bergsland Emily K. , Nakakura Eric K. 
Published: December 2019

AbstractBackground and ObjectivesWe developed objective measurements of preoperative and residual tumor volume, and debulking rate, to evaluate their prognostic value for neuroendocrine liver metastasis (NELM).MethodsSeventy‐three patients who underwent surgery for NELM were analyzed retrospectively. Indices of preoperative and postoperative residual tumor volume (pre‐volume index [VI] and post‐VI) were calculated as the sum of the cubes of individual tumor diameters on preoperative and postoperative imaging, respectively. The debulking rate (%) was calculated as 100 − 100 × post‐VI/pre‐VI. The classification and regression trees method was used to classify pre‐VI and post‐VI.ResultsOverall survival (OS) was discriminated by preoperative tumor volume (5‐year OS rates, 87.8% for low pre‐VI and 60.1% for high pre‐VI; P = .037) and residual tumor volume (5‐year OS rates, 88.1% for low post‐VI and 24.8% for high post‐VI; P < .001). In contrast, debulking rates of 100%, ≥90%, and <90% did not discriminate OS (5‐year OS rates, 88.0%, 61.9%, and 58.9%, respectively, not significant). In multivariate analysis, residual tumor volume (high post‐VI, hazard ratio, 6.40; 95% confidence interval, 1.45‐32.3) was an independent prognostic factor for OS.ConclusionsObjective measurement of tumor volume demonstrates that residual tumor volume is prognostic after surgery for NELM.
Highly ordered molecularly imprinted mesoporous silica for selective removal of bisphenol A from wastewater
Authors: Wu Jinyi , Tan Lei , Li Yuling , Wu Xiaotong , Liang Yong 
Published: December 2019

AbstractSelective removal of bisphenol A from wastewater is quite challenging primarily because of its low concentration and matrix complexity. To this end, according to the molecular structure of bisphenol A, we designed a functional monomer for the preparation of molecularly imprinted mesoporous silica using click chemistry reaction. The resultant bisphenol A imprinted mesoporous silica was characterized by transmission electron microscopy, small angle X‐ray diffraction, and N2 adsorption–desorption experiments. The results indicated that the bisphenol A imprinted mesoporous silica possessed a highly ordered periodic hexagonal mesostructure with the Brunauer–Emmett–Teller surface area of 944.28 m2/g. The bisphenol A imprinted mesoporous silica showed fast adsorption kinetics and the saturated adsorption capacity reached up to 88.6 mg/g at pH 6.5, and with relative selectivity factors ranged from 1.06 to 3.20. The adsorption efficiency of the bisphenol A imprinted mesoporous silica was above 97.96% after five extraction/elution cycles. The bisphenol A imprinted mesoporous silica was further applied to the selective removal of bisphenol A from real wastewater samples and showed great promise in practical applications.
Using Mountain Lion Habitat Selection in Management
Authors: Dellinger Justin A. , Cristescu Bogdan , Ewanyk Jonathan , Gammons Daniel J. , Garcelon David , Johnston Phillip , Martins Quinton , Thompson Craig , Vickers T. Winston , Wilmers Christopher C. , Wittmer Heiko U. , Torres Steven G. 
Published: December 2019

ABSTRACTWildlife agencies are generally tasked with managing and conserving species at state and local levels simultaneously. Thus, it is necessary for wildlife agencies to understand basic ecological processes of a given species at multiple scales to aid decision making at commensurately varied spatial and behavioral scales. Mountain lions (Puma concolor) occur throughout California, USA, and are at the center of a variety of management and conservation issues. For example, they are genetically and demographically at risk in 1 region yet apparently stable and negatively affecting endangered species in another. Currently, no formal plan exists for mountain lions in California to deal with these diverse scenarios involving issues of local mountain lion population viability and problems related to predation of endangered species. To facilitate development of a state‐wide management and conservation plan, we quantified habitat selection by mountain lions at 2 spatial scales across the range of environmental conditions in which the species is found in California. Our analyses used location data from individuals (n = 263) collared across the state from 2001–2019. At the home range scale, mountain lions selected habitat to prioritize meeting energetic demands. At the within home range scale, mountain lions avoided areas of human activity. Further, our analyses revealed 165,350–170,085 km2, depending on season, of suitable mountain lion habitat in California. Fifty percent of the suitable habitat was on unprotected lands and thus vulnerable to development. These habitat selection models will help in the development of a state‐wide conservation and management plan for mountain lions in California by guiding mountain lion population monitoring through time, prioritization of habitat to be conserved for maintaining demographic connectivity and gene flow, and efforts to mediate mountain lion‐prey interactions. Our work and application area will help with wildlife policy and management decisions related to depredation problems at the local scale and issues of habitat connectivity at the statewide scale. © 2019 The Wildlife Society.
Seismic Survey Design and Effects on Maternal Polar Bear Dens
Authors: Wilson Ryan R. , Durner George M. 
Published: December 2019

ABSTRACTLarge‐scale industrial activities can have negative effects on wildlife populations. Some of these effects, however, could be reduced with effective planning prior to development. The Coastal Plain of the Arctic National Wildlife Refuge, in northeastern Alaska, USA, is an important maternal denning area for polar bears (Ursus maritimus). Recent legislation has opened the area for potential oil and gas development. As a result, there is interest in conducting winter seismic surveys across the area that could disturb denning female polar bears and lead to decreased cub survival. We sought to demonstrate how different seismic survey designs, with and without aerial den detection surveys, could affect the level of potential effect on denning polar bears during spring (Feb–Apr). We developed 5 hypothetical seismic survey designs for a portion of the Coastal Plain ranging from no spatial or temporal restrictions on activities to explicit consideration of when and where operations can occur. We evaluated how many dens might be disturbed by seismic surveys and the average distance activity came within simulated polar bear dens. Survey design had a large effect on the estimated number of dens that could be disturbed; the scenario with the highest spatial and temporal specificity reduced the number of dens disturbed by >90% compared to the scenario with no restrictions on when and where activity could occur. The use of an aerial den detection survey prior to seismic activity further reduced the number of dens disturbed by 68% across all scenarios. The scenario with the highest spatial and temporal specificity always had the lowest level of disturbance for all scenarios with and without the aerial survey included. Our study suggests that large reductions in the probability of disturbance can occur through careful planning on the timing and distribution of proposed activities even when surveys are planned in areas with a high density of polar bear dens. Published 2019. This article is a U.S. Government work and is in the public domain in the USA. The Journal of Wildlife Management published by Wiley Periodicals, Inc. on behalf of The Wildlife Society.
Hunting and Nesting Phenology Influence Gobbling of Wild Turkeys
Authors: Wakefield Calvin T. , Wightman Patrick H. , Martin James A. , Bond Bobby T. , Lowrey D. Kevin , Cohen Bradley S. , Collier Bret A. , Chamberlain Michael J. 
Published: December 2019

ABSTRACTWild turkeys (Meleagris gallopavo) use a polygynous mating system whereby males engage in multiple courtship behaviors, including vocalizations (gobbling) to attract females and compete with other males for breeding opportunities. Males must balance the risk of courtship behaviors with the reproductive potential of each courtship behavior. Male turkeys are primarily hunted during the reproductive period, so the associated risk of courtship behaviors is increased. Many state agencies attempt to set hunting season frameworks that maximize hunter satisfaction by allowing hunting when gobbling activity is greatest and most females are theoretically incubating nests, but the relationship between gobbling activity and nesting phenology is unclear. We used autonomous recording units and global positioning system transmitters to monitor gobbling activity by male turkeys and reproductive behaviors of female turkeys in the Piedmont region of Georgia, USA. We used 13,177 gobbles, behavioral data from 82 females during the reproductive season, and daily estimates of harvest of males by hunters to examine relationships between daily gobbling activity, cumulative removal of males, and reproductive behaviors (laying, incubating) of females during 2017–2018. We observed a weak negative relationship between daily gobbling activity and gobbling activity the following day. As the reproductive season progressed, gobbling activity decreased. As the proportion of females engaged in laying or incubating behaviors increased, expected daily gobbling activity increased. Conversely, we observed that hunting and removal of males had a negative effect on daily gobbling activity, and this effect was disproportionately greater than the positive effect of female reproductive behaviors. Our findings suggest that hunting and removal of males are important determinants of gobbling activity, and that corresponding reductions in gobbling activity may have mediating effects on the mating system of wild turkeys. © 2019 The Wildlife Society.
Spatial variability of sediment methane production and methanogen communities within a eutrophic reservoir: Importance of organic matter source and quantity
Authors: Berberich Megan E. , Beaulieu Jake J. , Hamilton Trinity L. , Waldo Sarah , Buffam Ishi 
Published: December 2019

AbstractFreshwater reservoirs are an important source of the greenhouse gas methane (CH4) to the atmosphere, but global emission estimates are poorly constrained (13.3–52.5 Tg C yr−1), partially due to extreme spatial variability in emission rates within and among reservoirs. Spatial heterogeneity in the availability of organic matter (OM) for biological CH4production by methanogenic archaea may be an important contributor to this variation. To investigate this, we measured sediment CH4potential production rates, OM source and quantity, and methanogen community composition at 15 sites within a eutrophic reservoir in Ohio, USA. CH4production rates were highest in the shallow riverine inlet zone of the reservoir, even when rates were normalized to OM quantity, indicating that OM was more readily utilized by methanogens in the riverine zone than in the transitional or lacustrine zones. Sediment stable isotopes and C:N indicated a greater proportion of terrestrial OM in the particulate sediment of this zone. Methanogens were present at all sites, but the riverine zone contained a higher relative abundance of methanogens capable of acetoclastic and methylotrophic methanogenesis, likely reflecting differences in decomposition processes or OM quality. While we found that methane potential production rates were negatively correlated with autochthonous carbon in particulate sediment OM, rates were positively correlated with indicators of autochthonous carbon in the porewater dissolved OM. It is likely that both dissolved and particulate sediment OM affect CH4production rates, and that both terrestrial and aquatic OM sources are important in the riverine methane production hot spot.
Corrosion and corrosive‐wear behaviors of a high strength and toughness Cu–15Ni–8Sn alloy in seawater
Authors: Cheng Jinjuan , Wang Zheming , Gan Xueping , Lei Qian , Li Zhou , Zhou Kechao 
Published: December 2019

AbstractThe Cu–15Ni–8Sn alloy with high strength and toughness is a common bearing alloy, while it is often subjected to premature failure in service due to corrosion and wear. Therefore, the corrosion and wear behaviors of an ultra‐high‐strength and toughness Cu–15Ni–8Sn (wt%) alloy fabricated by hot isostatic pressing were investigated in this study. The results indicated that intergranular corrosion and pits were observed when the studied alloy was immersed into seawater for 30 days. When the Cu–15Ni–8Sn alloy slid in seawater, there was a synergistic effect between corrosion and wear. With the increase of normal load, the synergistic effect weakened initially and then enhanced the interaction between corrosion and wear changed from negative to positive, and the main wear mechanisms transferred from abrasive wear into delamination.
SAXS Investigation on Morphological Change in Lamellar Structures During Propagation Steps of Graft‐Type Polymer Electrolyte Membranes for Fuel Cell Applications
Authors: Tap Tran Duy , Nguyen La Ly , Zhao Yue , Hasegawa Shin , Sawada Shin‐ichi , Hung Nguyen Quang , Tuyen Luu Anh , Maekawa Yasunari 
Published: December 2019

AbstractThe changes of the lamellar periods (L1D), thickness of lamellar crystals (Lc), and amorphous layers (La) within the stacked lamellae of poly(styrenesulfonic acid)‐grafted poly(ethylene‐co‐tetrafluoroethylene) polymer electrolyte membranes (ETFE‐PEMs), induced by the preparation and water‐absorbing steps are investigated using the small‐angle X‐ray scattering method. The L1D values of all the samples quickly increase at a grafting degree (GD) range of less than 19% and then level off. The solvent‐induced recrystallization is observed at the early stage of grafting (GD < 10%) and at successive sulfonation and hydration steps. The L1D, La, and Lc of dry and hydrated PEMs show similar values at higher GD ranges (>34%), leading to the conclusion that most water molecules in the PEMs with higher GDs exist at the outside of the lamellar stacks. Accordingly, for the PEMs with low GD (<19%), all the hydrophilic graft‐polymers (ion‐channels) locate in the lamellar stacks and are strongly restricted by lamellar crystalline layers, which suppress the swelling of the PEMs. The unique lamellar structures of ETFE‐PEMs characterized by La and Lc are well connected with the high conductance and mechanical properties of the membranes, and are suitable for fuel cell applications.
Accelerating Thermal Stabilization by Pyrolytic Lignin for Partially Bio‐Based Carbon Fiber Precursor
Authors: Shi Hui , Ouyang Qin , Wang Jingyu , Hao Jianwei , Huang Xianbo 
Published: December 2019

AbstractIn this study, a partially bio‐based carbon fiber (CF) precursor is prepared by blending 32 wt% of pyrolytic lignin (PyL) with 68 wt% of poly(acrylonitrile‐co‐itaconic acid) (PANIA), and the effect of PyL on forming conjugated ladder structure during stepwise thermal stabilization is studied. The results of X‐ray photoelectron spectroscopy (XPS) reveal that PyL accelerates the formation of conjugated ladder structure at 230 °C during thermal stabilization for PANIA/PyL, which is 15 °C lower and 13 min earlier than PANIA. The acceleration on forming thermally stable conjugated ladder structure can be confirmed through Fourier‐transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). Moreover, the fiber stabilized at 230 °C is subsequently made into PANIA/PyL‐230 CF, which has relatively higher‐ordered graphitic structure and dense morphology without voids. The mechanism of PyL accelerating the formation of conjugated ladder structure during thermal stabilization is discussed.