bluuebunny/crossref_metadata_2025_split huggingface dataset:
Solarthermie und CO2: Methanol aus der Wüste
Authors: Offermanns Heribert , Effenberger Franz X. , Keim Willi , Plass Ludolf 
Published: February 2017

AbstractMethanol kann aus CO2 auf Basis von Kohle oder letzendlich aus der Luft durch Hydrierung mit Wasserstoff, erzeugt durch Wasserelektrolyse mit aus Solarthermieanlagen gewonnenem Strom in Wüstenregionen, produziert werden. Methanol ist ein geeignetes Speichermedium für Energie, es kann günstig gelagert und transportiert werden. Damit ist es ist ein geeigneter Energierohstoff, Treibstoff für Benzin‐ und Dieselmotoren sowie ein Chemierohstoff, der nahtlos Erdgas und Erdöl ersetzen kann. Die Nutzung einer Methanol‐Technologie könnte für Staaten in Südeuropa und Nordafrika enorme volkswirtschaftliche Bedeutung erlangen.
A multi‐institutional comparison of outcomes of immunosuppressed and immunocompetent patients treated with surgery and radiation therapy for cutaneous squamous cell carcinoma of the head and neck
Authors: Manyam Bindu V. , Garsa Adam A. , Chin Re‐I , Reddy Chandana A. , Gastman Brian , Thorstad Wade , Yom Sue S. , Nussenbaum Brian , Wang Steven J. , Vidimos Allison T. , Koyfman Shlomo A. 
Published: February 2017

BACKGROUNDPatients who are chronically immunosuppressed have higher rates of cutaneous squamous cell carcinoma of the head and neck (cSCC‐HN). This is the largest multi‐institutional study to date investigating the effect of immune status on disease outcomes in patients with cSCC‐HN who underwent surgery and received postoperative radiation therapy (RT).METHODSPatients from 3 institutions who underwent surgery and also received postoperative RT for primary or recurrent, stage I through IV cSCC‐HN between 1995 and 2015 were included in this institutional review board‐approved study. Patients categorized as immunosuppressed had chronic hematologic malignancy, human immunodeficiency/acquired immunodeficiency syndrome, or had received immunosuppressive therapy for organ transplantation ≥6 months before diagnosis. Overall survival, locoregional recurrence‐free survival, and progression‐free survival were calculated using the Kaplan‐Meier method. Univariate and multivariate analyses were performed using Cox proportional‐hazards regression.RESULTSOf 205 patients, 138 (67.3%) were immunocompetent, and 67 (32.7%) were immunosuppressed. Locoregional recurrence‐free survival (47.3% vs 86.1%; P < .0001) and progression‐free survival (38.7% vs 71.6%; P = .002) were significantly lower in immunosuppressed patients at 2 years. The 2‐year OS rate in immunosuppressed patients demonstrated a similar trend (60.9% vs 78.1%; P = .135) but did not meet significance. On multivariate analysis, immunosuppressed status (hazard ratio [HR], 3.79; P < .0001), recurrent disease (HR, 2.67; P = .001), poor differentiation (HR, 2.08; P = .006), and perineural invasion (HR, 2.05; P = .009) were significantly associated with locoregional recurrence.CONCLUSIONSImmunosuppressed patients with cSCC‐HN had dramatically lower outcomes compared with immunocompetent patients, despite receiving bimodality therapy. Immune status is a strong prognostic factor that should be accounted for in prognostic systems, treatment algorithms, and clinical trial design. Cancer 2017;123:2054–2060. © 2017 American Cancer Society.
Hierarchical Assembly of Monodisperse Hydroxyapatite Nanowires and Construction of High‐Strength Fire‐Resistant Inorganic Paper with High‐Temperature Flexibility
Authors: Li Heng , Zhu Ying‐Jie , Jiang Ying‐Ying , Yu Ya‐Dong , Chen Feng , Dong Li‐Ying , Wu Jin 
Published: February 2017

AbstractHigh‐strength flexible inorganic paper with fire‐resistant and adiabatic properties is highly demanded in various high‐temperature applications. However, constructing inorganic paper that not only has high strength and high flexibility at room temperature but also can prevent the high‐temperature‐induced friability is still a great challenge. Inspired by the hierarchical structure and excellent mechanical properties of the tooth enamel, we have developed a systematic approach for the bottom‐up fabrication of multi‐hierarchical fire‐resistant hydroxyapatite (HAP) nanowire paper with balanced tensile strength and flexibility that includes four steps: (1) the synthesis of monodisperse HAP nanowires from the molecular level to the nanoscale; (2) the self‐assembly of HAP nanowires into long fibers and two‐dimensional (2D) nanowire networks from the nanoscale to the mesoscale; (3) the layered assembly of 2D nanowire networks into the highly flexible high‐strength fire‐resistant paper from the mesoscale to the macroscale; (4) reinforcing the HAP nanowire paper with inorganic additives to enhance the tensile strength and to overcome the high‐temperature‐induced pulverization. By adopting this strategy, the mechanical properties of the fire‐resistant HAP nanowire paper are greatly improved. The experimental results show that the tensile strength of the as‐prepared HAP nanowires‐based inorganic paper is greatly enhanced to ≈15 MPa, which is close to that of the commercial copying paper, and the A4‐sized HAP nanowires‐based inorganic paper is highly flexible and can be directly printed using a commercial printer. Owing to the synergistic effect of all components and the unique hierarchical structure, the as‐prepared fire‐resistant HAP nanowire paper can also preserve well its high flexibility even under high‐temperature conditions.
Is Corporate Reputation Associated with Quality of CSR Reporting? Evidence from Spain
Authors: Odriozola María D. , Baraibar‐Diez Elisa 
Published: February 2017

AbstractDisclosure of social, environmental, and governance (ESG) information is inherent to the implementation of a corporate social responsibility (CSR) strategy. Furthermore, the level of quality in sustainability reports that are developed by the company may enhance its credibility and in turn, influence the perception of stakeholders improving corporate reputation. The aim of this work is to test whether the quality of sustainability reports influences subsequent corporate reputation. This contribution responds to a latent need in the literature as the study of the assurance on sustainability reporting is relatively new and its focus is novel since few studies examine the level of quality information as a precedent of reputation instead of a result of certain corporate variables. Using a logistic regression applied to Ibex35 companies for the period 2006–2011, we find that the quality of sustainability reporting increases the likelihood of having higher corporate reputation. Copyright © 2017 John Wiley & Sons, Ltd and ERP Environment
Perineuronal nets and vocal plasticity in songbirds: A proposed mechanism to explain the difference between closed‐ended and open‐ended learning
Authors: Cornez Gilles , Madison Farrah N. , Van der Linden Annemie , Cornil Charlotte , Yoder Kathleen M. , Ball Gregory F. , Balthazart Jacques 
Published: February 2017

ABSTRACTPerineuronal nets (PNN) are aggregations of chondroitin sulfate proteoglycans surrounding the soma and proximal processes of neurons, mostly GABAergic interneurons expressing parvalbumin. They limit the plasticity of their afferent synaptic connections. In zebra finches PNN develop in an experience‐dependent manner in the song control nuclei HVC and RA (nucleus robustus arcopallialis) when young birds crystallize their song. Because songbird species that are open‐ended learners tend to recapitulate each year the different phases of song learning until their song crystallizes at the beginning of the breeding season, we tested whether seasonal changes in PNN expression would be found in the song control nuclei of a seasonally breeding species such as the European starling. Only minimal changes in PNN densities and total number of cells surrounded by PNN were detected. However, comparison of the density of PNN and of PNN surrounding parvalbumin‐positive cells revealed that these structures are far less numerous in starlings that show extensive adult vocal plasticity, including learning of new songs throughout the year, than in the closed‐ended learner zebra finches. Canaries that also display some vocal plasticity across season but were never formally shown to learn new songs in adulthood were intermediate in this respect. Together these data suggest that establishment of PNN around parvalbumin‐positive neurons in song control nuclei has diverged during evolution to control the different learning capacities observed in songbird species. This differential expression of PNN in different songbird species could represent a key cellular mechanism mediating species variation between closed‐ended and open‐ended learning strategies. © 2017 Wiley Periodicals, Inc. Develop Neurobiol 77: 975–994, 2017
Light and noise pollution interact to disrupt interspecific interactions
Authors: McMahon Taegan A. , Rohr Jason R. , Bernal Ximena E. 
Published: February 2017

AbstractStudies on the consequences of urbanization often examine the effects of light, noise, and heat pollution independently on isolated species providing a limited understanding of how these combined stressors affect species interactions. Here, we investigate how these factors interact to affect parasitic frog‐biting midges (Corethrella spp.) and their túngara frog (Engystomops pustulosus) hosts. A survey of túngara frog calling sites revealed that frog abundance was not significantly correlated with urbanization, light, noise, or temperature. In contrast, frog‐biting midges were sensitive to light pollution and noise pollution. Increased light intensity significantly reduced midge abundance at low noise levels. At high noise intensity, there were no midges regardless of light level. Two field experiments controlling light and noise levels to examine attraction of the midges to their host and their feeding behavior confirmed the causality of these field patterns. These findings demonstrate that both light and noise pollution disrupt this host–parasite interaction and highlight the importance of considering interactions among species and types of pollutants to accurately assess the impacts of urbanization on ecological communities.
Pain patients' letters: The visit before the visit – A qualitative analysis of letters from patients referred to a tertiary pain center
Authors: Perrot S. , Launay A. , Desjeux D. , Cedraschi C. 
Published: February 2017

AbstractBackgroundPain centers manage only selected patients, and have long waiting lists. Some patients spontaneously send letters, before the visit, and these letters represent the first contact between the patients and the pain centers. We report a study of the content and format of these letters, for a patient perspective analysis.MethodsDuring a 3 month‐period, all newly referred patients to a tertiary pain center were considered. If a patient letter was provided, it was collected for analysis. Qualitative analyses including semantic and content analyses were performed to identify themes and categories.ResultsAmong 138 newly referred patients, 44 had sent a letter before consultation. Content analysis of 42 letters disclosed four themes: I) pain experience; II) impact of the pain problem; III) patient history; and IV) expectations. These themes could be distributed along four pain dimensions: (1) physical; (2) psycho‐affective; (3) social; and (4) temporal. This first study on patient letters reveals that a bio‐psychosocial model. Patients contribute actively to their trajectory, not only as healthcare seekers but also by constructing their narrative identity.ConclusionsPatient letters constitute narrative material to be integrated into clinical analysis, alongside patient interviews, especially in pain management. Pain specialists should take account of this narrative approach to better understand the unvoiced and sometimes silent experience of pain. This may increase quality of medical care by including patient‐centered data in an original method. Further studies may be valuable to analyze the possible contributions of such letters to patient management.SignificancePatients' letters constitute original narrative material to be integrated into clinical analysis, especially for pain management. Patients' letters analyses may improve the patient physician relationship, by understanding patient's perspectives, beliefs and expectations.
Combining electrospinning and cell sheet technology for the development of a multiscale tissue engineered ligament construct (TELC)
Authors: Vaquette Cedryck , Sudheesh Kumar P. T. , Petcu Eugen Bogdan , Ivanovski Saso 
Published: February 2017

AbstractLigament tissue rupture is a common sport injury. Although current treatment modalities can achieve appropriate reconstruction of the damaged ligament, they present significant drawbacks, mostly related to reduced tissue availability and pain associated with tissue harvesting. Stem cell based tissue regeneration combined with electrospun scaffolds represents a novel treatment method for torn ligaments. In this study, a low fiber density polycaprolactone (PCL) electrospun mesh and sheep mesenchymal stem cells (sMSCs) were used to develop tissue engineered ligament construct (TELC)in vitro. The assembly of the TELC was based on the spontaneous capacity of the cells to organize themselves into a cell sheet once seeded onto the electrospun mesh. The cell sheet matured over 4 weeks and strongly integrated with the low fiber density electrospun mesh which was subsequently processed into a ligament‐like bundle and braided with two other bundles to develop the final construct. Live/dead assay revealed that the handling of the construct through the various phases of assembly did not cause significant difference in viability compared to the control. Mechanical evaluation demonstrated that the incorporation of the cell sheet into the braided construct resulted in significantly modifying the mechanical behavior. A stress/displacement J‐curve was observed for the TELC that was similar to native ligament, whereas this particular feature was not observed in the non‐cellularized specimens. The regenerative potential of the TELC was evaluated ectopically in immunocompromized rats, compared to non cellularized electrospun fiber mesh and this demonstrated that the TELC was well colonized by host cells and that a significant remodelling of the implanted construct was observed. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 399–409, 2018.
Harmonization of serum 25‐hydroxycalciferol assay results from high‐performance liquid chromatography, enzyme immunoassay, radioimmunoassay, and immunochemiluminescence systems: A multicenter study
Authors: Nikooyeh Bahareh , Samiee Siamak M. , Farzami Marjan R. , Alavimajd Hamid , Zahedirad Maliheh , Kalayi Ali , Shariatzadeh Nastaran , Boroumand Nasrin , Golshekan Elham , Gholamian Yalda , Neyestani Tirang R. 
Published: February 2017

BackgroundRemarkable disagreement among different systems of 25‐hydroxy vitamin D 25(OH)D assay makes decision making for both clinical and community interventions very difficult. This study aimed to harmonize the results obtained from different 25(OH)D assay systems.MethodsA total of 275 serum samples were analyzed for 25(OH)D using DIAsource‐enzyme immunoassay (EIA), DIAsource‐radioimmunoassay (RIA), Roche‐electrochemiluminescence (ECL), Diasorin‐chemiluminescent immunoassay (CLIA), and high‐performance liquid chromatography (HPLC), as the reference method. Serum intact parathyroid hormone (iPTH) was also measured in all samples. Between‐system agreement and harmonization were evaluated using Bland–Altman analysis, receiver operating characteristic (ROC), and regression analysis.ResultsMean serum 25(OH)D concentrations and frequency distribution of vitamin D status showed a significant difference among the studied systems (P<.001 for both). Serum 25(OH)D assay results from all systems correlated with those from HPLC. As compared with HPLC, ECL showed a positive bias (+3.8 nmol/L), whereas CLIA had a negative bias (−11.9 nmol/L). Both EIA and RIA showed a more or less similar positive bias (8.0 and 8.1 nmol/L, respectively). Using serum iPTH‐based 25(OH)D cutoff points, only ECL results became comparable to and without significant difference with HPLC. However, when system‐specific cutoffs were defined based on HPLC results using regression equations, mean 25(OH)D and frequency distribution of vitamin D status were more harmonized compared with the other methods.ConclusionOur findings showed that with adjustment of circulating 25(OH)D based on HPLC, frequency distribution of vitamin D status, as judged by different methods, can be well harmonized with no statistically significant inter‐system difference.
The relationship between procalcitonin and thyroid autoantibodies in patients with autoimmune thyroiditis
Authors: Oncul Ali , Ates Ihsan , Arikan Mehmet Fettah , Yilmaz Nisbet , Topcuoglu Canan , Yilmaz Fatma Meric , Altay Mustafa 
Published: February 2017

BackgroundThe aim of this study is to investigate the serum levels of procalcitonin and its association with autoantibodies in patients with euthyroid Hashimoto's thyroiditis.MethodsA total of 80 participants were included in the study; 40 of which were newly diagnosed with Hashimoto's thyroiditis, aged over 18, and 40 of which were healthy volunteers. The serum levels of procalcitonin were measured by enzyme‐linked immunosorbent assay kit. Thyroid function tests were analyzed in hormone laboratory with Electro‐chemiluminescence immunoassay.ResultsHashimoto's thyroiditis patients had higher median procalcitonin levels than those of the control group (34.3 pg/mL vs 27.8 pg/mL respectively; P=.037). Also, male patients had higher median procalcitonin levels as compared to female patients (37 pg/mL vs 27 pg/mL respectively; P=.013). In the Hashimoto's thyroiditis group, procalcitonin level was positively correlated with anti‐thyroglobulin and anti‐thyroid peroxidase levels (r=.559, P<.001; r=634, P<.001, respectively). The procalcitonin and anti‐thyroid peroxidase levels were identified to be an independent predictor in diagnosis of Hashimoto's thyroiditis.ConclusionsThe fact that procalcitonin was found to be correlated with thyroid autoantibodies and found to be an independent risk factor for Hashimoto's thyroiditis in the regression analysis in the framework of this study urges us to think that procalcitonin may be associated with the autoimmunity.
High‐resolution precipitation mapping in a mountainous watershed: ground truth for evaluating uncertainty in a national precipitation dataset
Authors: Daly Christopher , Slater Melissa E. , Roberti Joshua A. , Laseter Stephanie H. , Swift Lloyd W. 
Published: February 2017

AbstractA 69‐station, densely spaced rain gauge network was maintained over the period 1951–1958 in the Coweeta Hydrologic Laboratory, located in the southern Appalachians in western North Carolina, USA. This unique dataset was used to develop the first digital seasonal and annual precipitation maps for the Coweeta basin, using elevation regression functions and residual interpolation. It was found that a 10‐m elevation grid filtered to an approximately 7‐km effective wavelength explained the most variance in precipitation (R2 = 0.82–0.95). A ‘dump zone’ of locally high precipitation a short distance downwind from the mountain crest marking the southern border of the basin was the main feature that was not explained well by the precipitation–elevation relationship.These data and maps provided a rare ‘ground‐truth’ for estimating uncertainty in the national‐scale Parameter‐elevation Relationships on Independent Slopes Model (PRISM) precipitation grids for this location and time period. Differences between PRISM and ground‐truth were compared with uncertainty estimates produced by the PRISM model and cross‐validation errors. Potential sources of uncertainty in the national PRISM grids were evaluated, including the effects of coarse grid resolution, limited station data, and imprecise station locations.The PRISM national grids matched closely (within 5%) with the Coweeta dataset. The PRISM regression prediction interval, which includes the influence of stations in an area of tens of kilometres around a given location, overestimated the local error at Coweeta (12–20%). Offsetting biases and generally low error rates made it difficult to isolate major sources of uncertainty in the PRISM grids, but station density and selection, and mislocation of stations were identified as likely sources of error. The methods used in this study can be repeated in other areas where high‐density data exist to gain a more comprehensive picture of the uncertainties in national‐level datasets, and can be used in network optimization exercises.
Controllability of Phosphorus Losses in Surface Runoff from Sloping Farmland Treated by Agricultural Practices
Authors: Zhang Qingwen , Chen Shanghong , Dong Yuequn , Liu Dinghui , Yang Xiaojuan , Yang Zhengli 
Published: February 2017

AbstractPhosphorus (P) loss from arable sloping land due to water erosion causes off‐site environment pollution in the Three Gorges area in China. This study aims to estimate the effects of agricultural practices on the reduction of P losses during water erosion processes under natural precipitation conditions: contour culturing with organic matter addition (CT + OM), contour culturing with wheat straw mulching (CT + SM), contour culturing with straw mulching and organic matter addition (CT + OM + SM) and conventional downslope culturing framework as a control (CK). Results demonstrated that CT + OM + SM could viably diminish runoff, sediment yields and P losses from arable sloping land. Compared with CK, CT + OM, CT + SM and CT + OM + SM lessened the surface runoff depths by 19%, 34% and 50%, respectively. A high curve number value induced a notable runoff potential from the plot. The surface‐runoff‐related total P (TP) loads for CK with yearly measures of 1·56 kg ha−1were significantly higher than those for CT + OM, CT + SM and CT + OM + SM at 1·07, 0·77 and 0·51 kg ha−1(p < 0·05), respectively. With all things considered, the particulate P losses represented a significant division of TP losses, adding up to almost 80% in 2014 and 79% in 2015. The outcomes demonstrated that surface protection and organic matter addition are two of the greatest agricultural protection practices that lessen P losses in the surface runoff from sloping farmland by water erosion. Copyright © 2017 John Wiley & Sons, Ltd.
Thermoresponsive UCST‐Type Behavior of Interpolymer Complexes of Poly(ethylene glycol) and Poly(poly(ethylene glycol) methacrylate) Brushes with Poly(acrylic acid) in Isopropanol
Authors: Szabó Ákos , Bencskó György , Szarka Györgyi , Iván Béla 
Published: February 2017

Upper critical solution temperature (UCST)‐type thermoresponsive behavior of poly(ethylene glycol)–poly(acrylic acid) (PEG–PAA) and poly(poly(ethylene glycol) methacrylate)–poly(acrylic acid) (PPEGMA–PAA) interpolymer complexes has been observed in isopropanol. For these investigations, PPEGMA and PAA with various average molecular weights have been synthesized by atom transfer radical polymerization. It has been found that both the PEG and PPEGMA have lower cloud point temperatures (Tcp) than its mixed polymer solutions with PAA, whereas PAA does not show such behavior in the investigated temperature range. These findings indicate the reversible formation of interpolymer complexes with variable structure and composition in the solutions of the polymer mixtures in isopropanol. Increasing the ethylene glycol/acrylic acid molar ratio or the molecular weight of either the PAA or the H‐acceptor PEG component of the interpolymer complexes increases the UCST‐type cloud point temperatures of these interpolymer systems. The polymer–polymer interactions by hydrogen bonds between PAA and PEG or PPEGMA and the correlations between Tcp and structural parameters of the components revealed in the course of these investigations may be utilized for exploring well‐defined UCST‐type material systems for various applications.
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