bluuebunny/crossref_metadata_2025_split huggingface dataset:
Accurate Prediction of the Adsorption Capabilities of Synthetic Organic Contaminants by Single‐Walled Carbon Nanotubes
Authors: Muliadi Yeremia K. , Huang Shuheng , Zhang Duo , Shi Tingting , Chen Linxin , Mei Hu 
Published: February 2019

AbstractIn this work, quantitative structure‐property relationship (QSPR) was employed to predict the adsorption capabilities of 40 synthetic organic contaminants (SOCs) by single‐walled carbon nanotubes (SWCNTs). Total of 1081 molecular descriptors that consist of 102 constitutional and physicochemical properties, 342 topological properties, and 637 three‐dimensional properties were used to characterize the chemical information of the 40 SOCs. After removing redundant variables by stepwise multiple regression (SMR), an optimal partial least squares (PLS) model was established by using only 3 decriptors, i. e., BEHv, Dm, and Mor30e. The determinant R2 of the training samples, Leave‐one‐out cross validation R2 (Q2), and R2pred of test samples were 0.775, 0.675, and 0.713, respectively. Y‐random permutation test showed that the optimal PLS model is not caused by chance. Based on the optimal PLS model, it can be inferred that topological, steric, and electronic properties are dominant factors affecting the adsorption capabilities of the SOCs by SWCNTs.
A Temperature‐Responsive Boronate Core Cross‐Linked Star (CCS) Polymer for Fast and Highly Efficient Enrichment of Glycoproteins
Authors: Chen Yaxin , Tong Jiexiang , Dong Jiahao , Luo Jing , Liu Xiaoya 
Published: February 2019

AbstractFast and highly efficient enrichment and separation of glycoproteins is essential in many biological applications, but the lack of materials with high capture capacity, fast, and efficient enrichment/separation makes it a challenge. Here, a temperature‐responsive core cross‐linked star (CCS) polymer with boronate affinity is reported for fast and efficient enriching and separating of glycoproteins from biological samples. The temperature‐responsive CCS polymers containing boronic acid in its polymeric arms and poly(N‐isopropyl acrylamide) in its cross‐linked core are prepared using reversible addition‐fragmentation chain transfer polymerization via an “arm‐first” methodology. The soluble boronate polymeric arms of the CCS polymers provide a homogeneous reaction system and facilitate interactions between boronic acid and glycoproteins, which leads to a fast binding/desorption speed and high capture capacity. Maximum binding capacity of the prepared CCS polymer for horseradish peroxidase is determined to be 210 mg g−1, which can be achieved within 20 min. More interestingly, the temperature‐responsive CCS polymers exhibit rapid reversible thermal‐induced volume phase transition by increasing the temperature from 15 to 30 °C, resulting in a facile and convenient sample collection and recovery for the target glycoproteins. Finally, the temperature‐responsive CCS polymer is successfully applied to enrichment of low abundant glycoproteins.
Recent Advances for MOF‐Derived Carbon‐Supported Single‐Atom Catalysts
Authors: Han Aijuan , Wang Bingqing , Kumar Anuj , Qin Yongji , Jin Jing , Wang Xinhe , Yang Can , Dong Bo , Jia Yin , Liu Junfeng , Sun Xiaoming 
Published: February 2019

AbstractSingle‐atom catalysts have drawn considerable attention because of their unique catalytic properties. However, the high surface energy of single atoms restricts their fabrication and creates significant challenges for further developments. In order to overcome this problem, metal organic framework (MOF)‐derived carbon materials can be served as ideal supports to anchor atomically dispersed metal atoms, due to their tunable particle size and shape features, by providing high surface area, porosity, thermal, and chemical stability. This review highlights the recent advances in i) different types of construction strategies for MOF‐derived carbon‐supported single‐atom catalysts, and ii) the catalytic applications of these MOF‐derived carbon‐supported single‐atom catalysts. Further, this review offers a valuable insight into the current challenges and future opportunities for MOF‐derived carbon‐supported single‐atom catalysts.
Fabrication of Superior Single‐Atom Catalysts toward Diverse Electrochemical Reactions
Authors: Zhang Bin‐Wei , Wang Yun‐Xiao , Chou Shu‐Lei , Liu Hua‐Kun , Dou Shi‐Xue 
Published: February 2019

AbstractSingle metal atom catalysts on supports have become a new frontier in the field of catalysts, which possess the maximum atomic utilization efficiency and have an unsaturated coordination environment. With their unique electronic and structural properties, single metal atoms usually show distinctive catalytic performance toward various chemical reactions. It is challenging, however, to synthesize stable single metal atom catalysts because of their high surface energy and tendency toward aggregation. Herein, recently reported advanced preparation methods for single metal atoms, with a particular focus on how to stabilize these single metal atoms against migration and aggregation, are summarized. In addition, the electrochemical conversion and storage applications of single metal atoms are discussed in detail with a special emphasis on the oxygen reduction reaction, oxygen evolution reaction, hydrogen evolution reaction, and carbon dioxide reduction reaction, as well as on their use in batteries. Finally, the current challenges and opportunities for the development of this field are addressed.
Functional Macro‐Microporous Metal–Organic Frameworks for Improving the Catalytic Performance
Authors: Hu Yu , Xu Xiujie , Zheng Bing , Hou Shanshan , Wang Peng , Chen Wanzheng , Gao Cong , Gu Zhida , Shen Yu , Wu Jiansheng , Fu Yu , Zhang Weina , Huo Fengwei 
Published: February 2019

AbstractConstructing hierarchical pore structures in metal–organic frameworks (H‐MOFs) can significantly enhance their catalytic performance. However, common strategies for preparing H‐MOFs only focus on creating hierarchical pores to facilitate the molecular diffusion but neglect the synergistic effect of hierarchical pores with multiactive sites in H‐MOFs. Therefore, the development of a suitable strategy with hierarchical pores and multiactive sites in H‐MOFs serving as multifunctional and efficient catalysts is highly desired. In this work, a facile strategy is developed to prepare functional nanoparticles (NPs)/MOFs catalysts with a macro‐microporous structure (NPs/M‐MOFs) and multiactive sites (more NPs and base sites) through template etching and immersion reduction. The as‐prepared Pt/M‐zeolitic imidazolate framework‐8 (ZIF‐8) shows high performance in the Knoevenagel condensation−hydrogenation two‐steps catalytic reaction, mainly due to the existence of macropores in the ZIF‐8 and the exposure of the multiactive sites (more Pt NPs and base sites). This strategy is potentially extendable to other series of MOFs for structuring functional NPs/M‐MOFs catalysts that can optimize the performance of catalytic reaction.
Concrete panel thickness demand for the design of composite steel plate shear wall
Authors: Qi Yi , Gu Qiang , Sun Guohua , Zhao Baocheng , Wang Huafei 
Published: February 2019

SummaryComposite steel plate shear walls (C‐SPWs) are composed of an infill steel plate and reinforced concrete encasements. With an adequate thickness, the concrete encasement can effectively prevent the premature buckling of the infill steel plate. Researchers have provided nonconservative concrete thickness demands through analyses of approximate elastic buckling, for which the analytical model is too simplistic to simulate C‐SPW buckling. In this paper, the buckling of C‐SPW is addressed using a nonlinear finite element method. To assist this method, a formula for the buckling strength of C‐SPW is theoretically developed. Utilizing the results of nonlinear finite element analysis on C‐SPW, the effects of concrete panel thickness, concrete elastic modulus, infill steel plate thickness, panel aspect ratio, and stud spacing on the infill steel plate buckling are analyzed, and the critical drift ratio corresponding to the buckling of the infill steel plate is obtained. According to the criterion that the C‐SPW will not buckle until its drift ratio achieves the drift limit (0.4%), the minimum concrete panel thicknesses demands are captured from finite element analysis. Fitting these predicted minimum concrete thicknesses, an available formula is proposed for the concrete thickness demand in the design of C‐SPW.
Spatial genetic analysis of coyotes in New York State
Authors: Berkman Leah K. , Frair Jacqueline L. , Marquardt Paula E. , Donner Deahn M. , Kilgo John C. , Whipps Christopher M. 
Published: February 2019

ABSTRACTThe robust dispersal capability of the coyote (Canis latrans) would suggest a pattern of widespread gene flow across North America, yet historical legacies, dispersal barriers, and habitat affinities may produce or reinforce genetic structure. In the northeastern United States, some coyotes carry genetic signatures from past hybridization events with eastern wolves (C. lupus lycaon). These so‐called “coywolves” may have differential predation or competitive success compared with the western origin coyotes with whom they share the contemporary landscape. We sampled coyote populations from New York (n = 156) and Wyoming, USA (n = 8) in 2006–2007 and from South Carolina, USA, in 2010 and confirmed regional genetic structure among these coyote populations. Then, within the putative contact zone between the northeastern and western coyote colonization fronts (New York State), we evaluated evidence for broad‐ and fine‐sale genetic structure, and a genetic gradient among New York coyotes using a suite of spatial genetic analyses. Although broad‐scale analyses indicated New York coyotes were highly intermixed, subtle isolation‐by‐distance was detected, and local spatial autocorrelation indicated potentially shorter dispersal distances and larger group sizes for coyotes in the Northeastern Highlands (Adirondack Mountains and foothills). Yet we failed to detect a distinct contact zone between 2 coyote types in New York, indicating that local abundance and ecological context rather than genetic lineage are likely to determine the local ecological effects of coyotes in this region. We suggest that the contact zone between coyote colonization fronts has either eroded or moved further south. © 2019 The Wildlife Society.
The Modified Semi‐lateral Transmesocolic Approach for Laparoscopic Left Adrenalectomy
Authors: Wind Philippe , Genser Laurent , Zarzavadjian Le Bian Alban 
Published: February 2019

AbstractBackgroundAs the most appropriate laparoscopic approach for adrenalectomy is still a matter of debate, we present a modified technique of laparoscopic transmesocolic approach for left adrenalectomy.MethodsAll demographics, intraoperative and postoperative data of patients who underwent laparoscopic transmesocolic left adrenalectomy from 2009 to 2015 in Avicenne Hospital were recorded.ResultsThirty‐three consecutive patients underwent laparoscopic transmesocolic left adrenalectomy. We observed no conversion, negligible blood loss, no red cell transfusion or intraoperative complication. Mean operative time reached 96 min (range: 40–200 min). Postoperatively, the median length of hospital stay was 5 days (range: 3–8 days), mortality was nil, and six (19%) patients suffered from complication, including one major complication (Clavien–Dindo III–IV, an abdominal collection treated with radiologic drainage). R0 resection was achieved in all patients.ConclusionLaparoscopic left adrenalectomy using semi‐lateral transperitoneal transmesocolic approach is feasible and safe with acceptable intraoperative and perioperative outcomes. This technique could be considered as a routine approach and should be compared in further studies.
Increase ethyl acetate production in Saccharomyces cerevisiae by genetic engineering of ethyl acetate metabolic pathway
Authors: Dong Jian , Wang Pengfei , Fu Xiaomeng , Dong Shengsheng , Li Xiao , Xiao Dongguang 
Published: February 2019

Abstract
Ethyl acetate has attracted much attention as an important chemical raw material and a flavor component of alcoholic beverages. In this study, the biosynthetic pathway for the production of ethyl acetate in Chinese liquor yeast was unblocked. In addition to engineering Saccharomyces cerevisiae to increased intracellular CoA and acetyl-CoA levels, we also increased the combining efficiency of acetyl-CoA to ethanol. The genes encoding phosphopantothenate-cysteine ligase, acetyl-CoA synthetase, and alcohol acetyltransferase were overexpressed by inserting the strong promoter PGK1p and the terminator PGK1t, respectively, and then combine them. Our results finally showed that the ethyl acetate levels of all engineering strains were improved. The final engineering strain CLy12a-ATF1-ACS2-CAB2 had a significant increase in ethyl acetate yield, reaching 610.26 (± 14.28) mg/L, and the yield of higher alcohols was significantly decreased. It is proved that the modification of ethyl acetate metabolic pathway is extremely important for the production of ethyl acetate from Saccharomyces cerevisiae.
Molecular characterization of Ecuadorian quinoa (Chenopodium quinoa Willd.) diversity: implications for conservation and breeding
Authors: Salazar Juan , de Lourdes Torres María , Gutierrez Bernardo , Torres Andrés Francisco 
Published: February 2019

AbstractQuinoa (Chenopodium quinoa Willd.) is recognized as an important crop to improve global food security. It has gained international recognition because of the nutritional value of its seeds and its broad agronomic resilience. Although several studies have attempted to characterize the genetic diversity of quinoa, none have focused on evaluating germplasm from Ecuador; the latter considered a relevant subcenter of diversity for the species. In this study, 84 accessions representing the species’ cultivated range in the Ecuadorian Andes were characterized using 15 species-specific SSR markers. The extent of allelic richness (196 alleles) and genetic heterozygosity (HE = 0.71) detected for these accessions demonstrate that Ecuadorian quinoa is highly diverse. Phenetic analyzes structured Ecuadorian germplasm into 3 subgroups; each containing genotypes from all surveyed provinces. Average expected heterozygosity was high for all 3 subgroups (0.53 ≤ HE ≤ 0.72), and Nei-pairwise comparisons showed significant genetic divergence among them (0.31 ≤ NeiDST ≤ 0.84). The lack of a clear geographic pattern in the genetic structure of Ecuadorian quinoa led us to believe that the 3 reported subgroups constitute independent genetic lineages representing ancestral landrace populations which have been disseminated throughout Ecuador via informal seed networks. Nevertheless, a Wilcoxon test showed that at least one subgroup had been subject to intensive inbreeding and selection; and possibly corresponds to the local commercial variety INIAP-Tunkahuan. Our results show that ancestral quinoa diversity in Ecuador has prevailed despite the introduction of commercial varieties, and should be preserved for future use in breeding programs.
Modelling deep indeterminacy
Authors: Darby George , Pickup Martin 
Published: February 2019

AbstractThis paper constructs a model of metaphysical indeterminacy that can accommodate a kind of ‘deep’ worldly indeterminacy that arguably arises in quantum mechanics via the Kochen–Specker theorem, and that is incompatible with prominent theories of metaphysical indeterminacy such as that in Barnes and Williams (Oxf Stud Metaphys 6:103–148, 2011). We construct a variant of Barnes and Williams’s theory that avoids this problem. Our version builds on situation semantics and uses incomplete, local situations rather than possible worlds to build a model. We evaluate the resulting theory and contrast it with similar alternatives, concluding that our model successfully captures deep indeterminacy.
Are the existing EU Ecolabel criteria for furniture products too complex? An analysis of complexity from a material and a supply chain perspective and suggestions for ways ahead
Authors: Donatello Shane , Cordella Mauro , Kaps Renata , Kowalska Malgorzata , Wolf Oliver 
Published: February 2019

Abstract
Purpose
One possible reason for the poor uptake of the EU Ecolabel for furniture products may be that the criteria are too complex for applicants. Consequently, it was decided to develop a method which quantifies criteria complexity and subsequently, to propose ways for its reduction, which could be considered in future criteria revision.

Methods
The requirements behind the voluntary EU Ecolabel criteria for furniture products set out in Commission Decision (EU) 2016/1332 have been scored with a “criteria complexity index” (CCI), based on the answers to a series of six questions that relate to the effort required for proper assessment and verification. The criteria, and associated CCI values, have been grouped on a per material basis, allowing a “material complexity index” (MCI) to be calculated and consequently, a “furniture complexity index” (FCI) has been calculated as a function of the materials in different furniture products.

Results and discussion
Overall, it was found that CCI values can differ depending on the actual supply chain scenario, that textiles and leather had much higher MCI values than all other materials and that the FCI was completely dependent on the materials the furniture product was composed of. FCI values were much lower in general for non-upholstered furniture.

Conclusions
The FCI scores can be greatly reduced by the following: (i) using fewer materials in the product; (ii) having shorter supply chains; (iii) using uncoated metals, or at least carrying out coating in-house; (iv) using solid wood instead of wood-based panels; and (v) identifying competent and communicative suppliers who are especially well-informed about chemicals used. Since furniture manufacturers only have limited scope to make these changes, it is more effective to change the way the criteria are structured in future revisions in order to make the criteria more fairly balanced and flexible for potential applicants. Key points about any future restructuring would be to make the chemical requirements more SME friendly and to consider moving away from a rigid pass–fail approach to a more flexible scoring approach.
Harmonisation of stem volume estimates in European National Forest Inventories
Authors: Gschwantner Thomas , Alberdi Iciar , Balázs András , Bauwens Sébastien , Bender Susann , Borota Dragan , Bosela Michal , Bouriaud Olivier , Cañellas Isabel , Donis Jānis , Freudenschuß Alexandra , Hervé Jean-Christophe , Hladnik David , Jansons Jurģis , Kolozs László , Korhonen Kari T. , Kucera Milos , Kulbokas Gintaras , Kuliešis Andrius , Lanz Adrian , Lejeune Philippe , Lind Torgny , Marin Gheorghe , Morneau François , Nagy Dóra , Nord-Larsen Thomas , Nunes Leónia , Pantić Damjan , Paulo Joana A. , Pikula Tomas , Redmond John , Rego Francisco C. , Riedel Thomas , Saint-André Laurent , Šebeň Vladimír , Sims Allan , Skudnik Mitja , Solti György , Tomter Stein M. , Twomey Mark , Westerlund Bertil , Zell Jürgen 
Published: February 2019

Abstract

Key message

Volume predictions of sample trees are basic inputs for essential National Forest Inventory (NFI) estimates. The predicted volumes are rarely comparable among European NFIs because of country-specific dbh-thresholds and differences regarding the inclusion of the tree parts stump, stem top, and branches. Twenty-one European NFIs implemented harmonisation measures to provide consistent stem volume predictions for comparable forest resource estimates.

Context

The harmonisation of forest information has become increasingly important. International programs and interest groups from the wood industry, energy, and environmental sectors require comparable information. European NFIs as primary source of forest information are well-placed to support policies and decision-making processes with harmonised estimates.

Aims

The main objectives were to present the implementation of stem volume harmonisation by European NFIs, to obtain comparable growing stocks according to five reference definitions, and to compare the different results.

Methods

The applied harmonisation approach identifies the deviations between country-level and common reference definitions. The deviations are minimised through country-specific bridging functions. Growing stocks were calculated from the un-harmonised, and harmonised stem volume estimates and comparisons were made.

Results

The country-level growing stock results differ from the Cost Action E43 reference definition between − 8 and + 32%. Stumps and stem tops together account for 4 to 13% of stem volume, and large branches constitute 3 to 21% of broadleaved growing stock. Up to 6% of stem volume is allocated below the dbh-threshold.

Conclusion

Comparable volume figures are available for the first time on a large-scale in Europe. The results indicate the importance of harmonisation for international forest statistics. The presented work contributes to the NFI harmonisation process in Europe in several ways regarding comparable NFI reporting and scenario modelling.
Posttraumatic stress disorder and total amyloid burden and amyloid‐β 42/40 ratios in plasma: Results from a pilot study of World Trade Center responders
Authors: Clouston Sean A.P. , Deri Yael , Diminich Erica , Kew Richard , Kotov Roman , Stewart Candace , Yang Xiaohua , Gandy Sam , Sano Mary , Bromet Evelyn J. , Luft Benjamin J. 
Published: February 2019

AbstractIntroductionChronic posttraumatic stress disorder (PTSD) is associated with poor memory and increased burden of various degenerative cerebral neuropathologies. The goal of this pilot study was to determine whether PTSD was associated with changes in plasma‐based neuropathological biomarkers of neurodegeneration among World Trade Center (WTC) responders.MethodsThirty‐four WTC responders had blood drawn and flash‐frozen within 15 minutes of retrieval. PTSD symptoms were assessed at that time. Age, sex, and WTC exposure duration were obtained from medical records. Plasma was assayed in duplicate using an ultra‐sensitive single‐molecule enzyme‐linked immunosorbent assay to examine the distribution of amyloid‐β (Aβ) 42/40 ratios, total Aβ, total tau, and neurofilament light (NfL). The comparison group was drawn from a bank of healthy controls collected and assayed at the same facility.ResultsThe average age of WTC responders at blood draw was 53 years. Half were PTSD positive (PTSD+) as indicated by symptom severity. WTC responders had lower Aβ42/Aβ40 ratios but higher total tau and NfL levels in the plasma than healthy controls. PTSD+ status was associated with lower plasma Aβ load and higher Aβ42/Aβ40 ratios.DiscussionFindings suggest that PTSD may be associated with alterations in plasma markers related to Aβ, tau, and NfL, highlighting the potential association between PTSD status and neurodegenerative neuropathology in WTC responders.