bluuebunny/crossref_metadata_2025_split huggingface dataset:
Le rôle de la certification dans le développement de collaborations entre acteurs aux logiques partiellement distinctes : le cas du commerce équitable
Authors: Huybrechts Benjamin , Nicholls Alex 
Published: November 2021

Comment la certification éthique affecte-t-elle les collaborations entre des partenaires aux logiques institutionnelles partiellement distinctes, par exemple des entreprises de commerce équitable et des entreprises de la grande distribution ? En comparant des collaborations avec et sans recours à la certification du commerce équitable en Belgique, nous observons que cette certification permet de multiplier et de standardiser ces collaborations. Néanmoins, elle maintient également les rapports de pouvoir dans leur dimension économique et limite le potentiel d’enrichissement mutuel. En l’absence de certification, les négociations sont spécifiques à chaque collaboration, ce qui entrave leur réplication mais permet un plus grand enrichissement mutuel des partenaires.
Analysis of core genes for colorectal cancer prognosis based on immune and stromal scores
Authors: Zhu Yi , Zhou Yuan , Jiang HongGang , Chen ZhiHeng , Lu BoHao 
Published: November 2021

BackgroundColorectal cancer (CRC) is one of the most common malignancies.An early diagnosis and an accurate prognosis are major focuses of CRC research. Tumor microenvironment cells and the extent of infiltrating immune and stromal cells contribute significantly to the tumor prognosis.MethodsImmune and stromal scores were calculated based on the ESTIMATE algorithm using the sample expression profile of the The Cancer Genome Atlas (TCGA) database. GSE102479 was used as the validation database. Differentially expressed genes whose expression was significantly associated with the prognosis of CRC patients were identified based on the immune matrix score. Survival analysis was conducted on the union of the differentially expressed genes. A protein–protein interaction (PPI) network was constructed using the STRING database to identify the closely connected modules. To conduct functional enrichment analysis of the relevant genes, GO and KEGG pathway analyses were performed with Cluster Profiler. Pivot analysis of the ncRNAs and TFs was performed by using the RAID2.0 database and TRRUST v2 database. TF-mRNA regulatory relationships were analyzed in the TRRUST V2 database. Hubgene targeting relationships were screened in the TargetScan, miRTarBase and miRDB databases. The SNV data of the hub genes were analyzed by using the R maftools package. A ROC curve was drawn based on the TCGA database. The proportion of immune cells was estimated using CIBERSORT and the LM22 feature matrix.ResultsThe results showed that the matrix score was significantly correlated with colorectal cancer stage T. A total of 789 differentially expressed genes and 121 survival-related prognostic genes were identified. The PPI network showed that 22 core genes were related to the CRC prognosis. Furthermore, four ncRNAs that regulated the core prognosis genes, 11 TFs with regulatory effects on the core prognosis genes, and two drugs, quercetin and pseudoephedrine, that have regulatory effects on colorectal cancer were also identified.ConclusionsWe obtained a list of tumor microenvironment-related genes for CRC patients. These genes could be useful for determining the prognosis of CRC patients. To confirm the function of these genes, additional experiments are necessary.
Tree‐Inspired Ultralong Hydroxyapatite Nanowires‐Based Multifunctional Aerogel with Vertically Aligned Channels for Continuous Flow Catalysis, Water Disinfection, and Solar Energy‐Driven Water Purification
Authors: Xiong Zhi‐Chao , Zhu Ying‐Jie , Wang Zhong‐Yi , Chen Yu‐Qiao , Yu Han‐Ping 
Published: November 2021

AbstractWater pollution and freshwater shortage have deteriorated the global water crisis. Developing sustainable methods to alleviate contaminated water has become an urgent affair. Herein, inspired by water transportation and transpiration of natural trees, the authors report an ultralong hydroxyapatite nanowires‐based biomimetic aerogel with vertically aligned channels and multiple functions for continuous flow catalysis, water disinfection, solar energy‐driven water purification, and seawater desalination. Ultralong hydroxyapatite nanowires act as carriers to immobilize catalyst nanoparticles and serve as building blocks to assemble with chitosan to form the biomimetic aerogel with structure‐function integration. Benefiting from the interconnected cellular structure, unidirectional aligned channels, nanowire‐interwoven networked pore wall, and evenly distributed catalyst nanoparticles, the biomimetic aerogel exhibits high catalytic activity (97.6% treatment efficiency) and permeability (1786 L m−2 h−1), excellent recyclability and stability in continuous flow catalytic degradation of methylene blue solely driven by gravity. The biomimetic aerogel exhibits excellent performance for bacteria removal and anti‐biofouling. The superior photothermal conversion and heat confinement properties enable the biomimetic aerogel with a high efficiency (86.7%) for solar energy‐driven seawater desalination and wastewater purification under one sun irradiation. The multifunctional biomimetic aerogel has promising applications in catalytic reactions, wastewater remediation, and environmental engineering.
A Super‐Boosted Hybrid Plasmonic Upconversion Process for Photodetection at 1550 nm Wavelength
Authors: La Ju A. , Lee Seongyu , Hong A‐Ra , Byun Ji Young , Kang JoonHyun , Han Il Ki , Cho Younghak , Kang Gumin , Jang Ho Seong , Ko Hyungduk 
Published: November 2021

AbstractA super‐boosted hybrid plasmonic upconversion (UC) architecture comprising a hierarchical plasmonic upconversion (HPU) film and a polymeric microlens array (MLA) film is proposed for efficient photodetection at a wavelength of 1550 nm. Plasmonic metasurfaces and Au core–satellite nanoassembly (CSNA) films can strongly induce a more effective plasmonic effect by providing numerous hot spots in an intense local electromagnetic field up to wavelengths exceeding 1550 nm. Hence, significant UC emission enhancement is realized via the amplified plasmonic coupling of an HPU film comprising an Au CSNA and UC nanoparticles. Furthermore, an MLA polymer film is synergistically coupled with the HPU film, thereby focusing the incident near‐infrared light in the micrometer region, including the plasmonic nanostructure area. Consequently, the plasmonic effect super‐boosted by microfocusing the incident light, significantly lowers the detectable power limit of a device, resulting in superior sensitivity and responsivity at weak excitation powers. Finally, a triple‐cation perovskite‐based photodetector coupled with the hybrid plasmonic UC film exhibits the excellent values of responsivity and detectivity of 9.80 A W−1 and 8.22 × 1012 Jones at a weak power density of ≈0.03 mW cm−2, respectively, demonstrating that the device performance is enhanced by more than 104 magnitudes over a reference sample.
Soluble Organic Cathodes Enable Long Cycle Life, High Rate, and Wide‐Temperature Lithium‐Ion Batteries
Authors: Li Mengjie , Yang Jixing , Shi Yeqing , Chen Zifeng , Bai Panxing , Su Hai , Xiong Peixun , Cheng Mingren , Zhao Jiwei , Xu Yunhua 
Published: November 2021

AbstractOrganic electrode materials free of rare transition metal elements are promising for sustainable, cost‐effective, and environmentally benign battery chemistries. However, severe shuttling effect caused by the dissolution of active materials in liquid electrolytes results in fast capacity decay, limiting their practical applications. Here, using a gel polymer electrolyte (GPE) that is in situ formed on Nafion‐coated separators, the shuttle reaction of organic electrodes is eliminated while maintaining the electrochemical performance. The synergy of physical confinement by GPE with tunable polymer structure and charge repulsion of the Nafion‐coated separator substantially prevents the soluble organic electrode materials with different molecular sizes from shuttling. A soluble small‐molecule organic electrode material of 1,3,5‐tri(9,10‐anthraquinonyl)benzene demonstrates exceptional electrochemical performance with an ultra‐long cycle life of 10 000 cycles, excellent rate capability of 203 mAh g−1 at 100 C, and a wide working temperature range from −70 to 100 °C based on the solid–liquid conversion chemistry, which outperforms all previously reported organic cathode materials. The shielding capability of GPE can be designed and tailored toward organic electrodes with different molecular sizes, thus providing a universal resolution to the shuttling effect that all soluble electrode materials suffer.
Cobalt Catalyzed N‐Methylation of Amides using Methanol
Authors: Paul Bhaskar , Maji Milan , Panja Dibyajyoti , Kundu Sabuj 
Published: November 2021

AbstractN‐Methylation of amide with methanol is reported in the presence of an in‐situ generated cobalt catalyst. With this simple protocol, various amides were methylated in up to 99% yield. Notably, the involvement of active cobalt (I) hydride in this methylation process was revealed by control experiments. Deuterium labelling studies were carried out using methanol‐d4, taking benzamide and the possible intermediate N‐(hydroxymethyl)benzamide to understand this transformation. Additionally, DFT calculations for the amide−formaldehyde coupling were performed to elucidate the influence of catalyst in this step.
Observer‐based finite‐time event‐triggered H∞ control for nonlinear switched systems with interval time‐varying delay
Authors: Dong Yali , Deng Mengxiao , Ding Mengying 
Published: November 2021

AbstractThe problem of observer‐based finite‐time event‐triggered H∞ control for nonlinear uncertain switched systems is investigated in this paper. An observer‐based event‐triggered controller is constructed using a state observer. The event‐triggering updating strategies for the control law are designed. The multiple Lyapunov–Krasovskii functional and average dwell time technique are utilized to derive some sufficient conditions that guarantee the switched system is observer‐based event‐triggered H∞ finite‐time stabilizable. We give the observer gain and controller gain. At the end of this paper is a numerical example that illustrates the effectiveness and advantages of the proposed approaches.
Young radio sources: From newly born to short‐lived objects
Authors: Orienti Monica , Dallacasa Daniele 
Published: November 2021

AbstractThe evolutionary stage of a powerful radio source originated by an active galactic nucleus is related to its linear size. Following the evolution models, intrinsically compact objects would evolve into the population of classical radio galaxies. However, the fraction of young radio sources in flux density‐limited samples is much larger than what is expected from the number counts of large radio sources, suggesting the existence of short‐lived objects. We present results of multi‐epoch very large array and very long baseline array observations of a sub‐sample of extreme GPS sources that should be at the very beginning of their radio evolution. We also briefly introduce a new project aiming at determining the incidence of short‐lived objects among a statistically complete sample of young radio sources.
Network ambidexterity and environmental performance: Code‐sharing in the airline industry
Authors: Payán‐Sánchez Belén , Pérez‐Valls Miguel , Plaza‐Úbeda José Antonio , Vázquez‐Brust Diego 
Published: November 2021

AbstractThe most common form of horizontal collaboration within the airline industry is code‐sharing, which provides firms with many economic and operational benefits, although what happens in the environmental area is less certain. How should companies address code‐sharing to contribute to sustainability? The main objective of this work is to analyse the impact that this type of horizontal collaboration can have on the environmental performance of airlines. From this, we propose that network ambidexterity—the ability to balance exploration with new partners and exploitation with prior partners—is an adequate strategy to solve agency problems derived from collaboration practices to achieve environmental outcomes. Using hierarchical regression analysis, our results reinforce code‐sharing as a critical resource for the improvement of environmental performance and identify the moderating role of network ambidexterity in the impact of alliances on environmental performance.
Introducing Korean adolescent counselling systems: Implications for future directions
Authors: Jo Hang , Kim Nayoung , Yoon Eunhui 
Published: November 2021

AbstractAdolescence is the period when teenagers need to enhance competencies, develop independence and experience important transitions in their lives. In addition to typical developmental tasks, Korean adolescents experience unique stressors due to highly competitive nature of the educational system in the country. It is commonly believed that they are more likely to get high‐paying jobs or higher social status once they enter prestigious universities. This belief forces the students to spend a considerable amount of time studying and results in pressure to show high levels of academic performance. Consequently, Korean adolescents experience excessive academic stress, which may lead to a broad range of psychological difficulties. These stressors have led to an increased number of clients seeking counselling services in the past years, with a total of 5 million students at all school levels presenting in 2018. The presenting issues and concerns included interpersonal relationships, academic/career difficulties, mental health issues and juvenile delinquency. In order to best serve adolescent clients, Korea has different service delivery systems including Community Youth Safety‐Net (CYS‐Net). This system provides at‐risk adolescents with customised services including counselling, protection, education and shelters by linking youth‐related resources in the community. Overall, the current article provides information regarding the Korean counselling system for adolescents. Specifically, we present (a) characteristics of the counselling system, (b) prevalence of presenting issues in counselling, (c) client characteristics, (d) service delivery systems, and (e) employment status of adolescent counsellors and school counsellors. Future directions for Korean adolescent counselling and implications are discussed.
Hypocalcemia and massive pulmonary embolism in SLE patient with COVID‐19 infection: A case report
Authors: Yousif Elnaeem Yousif Mohammed , Eljack Moh.Mah.Fadel Allah , Alfatih Mohammed , Abdulkarim Mohammed , Ibrahim mohamed Abdirizak , Abbasher Hussien Mohamed Ahmed Khabab , S. Hassan Haroun Mazin 
Published: November 2021

AbstractA 16‐year‐old female patient presented to our ED with fever and coughing of blood for 3 days. She is known to have SLE for 5 months and takes oral prednisone. She was tested positive for COVID‐19. She developed hypocalcemia with clinically diagnosed massive pulmonary embolism. She was treated with heparin and recovered.
High‐Spin and Low‐Spin State Perferryl Intermediates: Reactivity‐Selectivity Correlation in Fe(PDP) Catalyzed Oxidation of (+)‐Sclareolide
Authors: Zima Alexandra M. , Babushkin Dmitrii E. , Lyakin Oleg Y. , Bryliakov Konstantin P. , Talsi Evgenii P. 
Published: November 2021

AbstractFive iron complexes of the Fe(PDP) family, giving rise to the low‐spin (S=1/2) and high‐spin (S=3/2) perferryl oxygen‐transferring intermediates, have been screened in the C−H oxidation of the bulky steroidal substrate (3aR)‐(+)‐sclareolide with H2O2. The regioselectivity of oxidation (preferentially at the C2 methylenic site) increases when passing from the catalyst systems exhibiting more reactive, low‐spin perferryl oxygen‐transferring species to those featuring their less reactive, high‐spin counterparts. Furthermore, the C2 hydroxylation chemoselectivity increases in the same order, being the highest for the least reactive intermediate in the series; this observation is explained in terms of the more product‐like transition state.
Effect of Electrolyte and Electrode Configuration on Cu‐Catalyzed Nitric Oxide Reduction to Ammonia
Authors: Krzywda Piotr M. , Paradelo Rodríguez Ainoa , Benes Nieck E. , Mei Bastian T. , Mul Guido 
Published: November 2021

AbstractReduction of nitric oxide was investigated using Cu electrodes in acid and neutral pH conditions. Analysis of Cu discs in stagnant electrolyte by Electrochemical Mass Spectrometry (EC‐MS), revealed the favorable formation of ammonia (and hydrogen) in acidic electrolyte, while N2O and N2 are formed in significant quantities at neutral conditions. Additional performance evaluation of Cu electrodes in hollow fiber geometry, was performed using 10 vol % NO in Ar supplied through the porous electrode structure and off‐line determination of ammonia by 1H NMR spectroscopy. The pH dependent performance of the Cu hollow fiber is in agreement with EC‐MS data at low gas flow rates, showing the highest ammonia selectivity in acidic conditions. However, at relatively high gas flow rates, almost 90 % faradaic efficiency and a NH3 production rate of 400 μmol h−2 cm−2 were obtained in neutral electrolyte at −0.6 V vs RHE, likely due to enhanced availability of NO at the electrode surface, suppressing the hydrogen evolution reaction. This approach shows conversion of waste NO gas to valuable green fertilizer components is possible.
Dual Activation of Unsaturated Amides with Schwartz's Reagent: A Diastereoselective Access to Cyclopentanols and N,O‐Dimethylcyclopentylhydroxylamines.
Authors: Coelho Aurélien , Souvenir Zafindrajaona Mahasoa‐Salina , Vallée Alexis , Behr Jean‐Bernard , Vasse Jean‐Luc 
Published: November 2021

AbstractThe diastereoselective access to cyclopentanols and N,O‐dimethylcyclopentylhydroxylamines from 4‐pentenoic acid‐derived Weinreb amides is described. Based on the concomitant generation of both the nucleophilic and the electrophilic poles by hydrozirconation of the amide and the C=C double bond, the cyclisation may be tuned towards cyclopentanols or N,O‐dimethylcyclopentylhydroxylamines depending on the ring‐closure promotor. An extension to cis 3‐substituted N,O‐dimethylcyclohexylhydroxylamines is also presented.
Extraneural recurrence of an intracranial nongerminomatous germ cell tumor to cervical lymph nodes in a pediatric patient: Case report
Authors: Howell Jackson , Dandoy Christopher , Wright Jordan M. , Chow Lionel , El‐Sheikh Ayman , Dole Mukund , Vatner Ralph E. , Kamian Kambiz 
Published: November 2021

AbstractBackgroundIntracranial germ cell tumors (GCTs) comprise 3%–5% of pediatric primary central nervous system (CNS) tumors in Western countries. Though they are related in embryonic origin to gonadal GCTs, which are considered highly treatable with cisplatin‐based chemotherapy regimens, intracranial GCTs vary in malignant potential and sensitivity to radiation and chemotherapy, generally carrying a worse prognosis. Metastases of intracranial GCTs outside of the CNS are rare, indicate a poor prognosis, and their salvage treatment is not well established.CaseA 15‐year‐old boy presented with bifocal (suprasellar and pineal) intracranial nongerminomatous germ cell tumors of mixed origin. The tumors were treated to full response with a multimodal approach of neoadjuvant chemotherapy, surgical resection, and adjuvant craniospinal proton radiation. Nine months following treatment completion, the patient presented with an enlarged cervical lymph node determined on excisional biopsy to be a recurrence of pure germinoma from the primary tumors. Salvage treatment involved high‐dose chemotherapy and autologous stem cell transplantation; however, the patient denied further treatment prior to planned focal radiotherapy. Thirty months post‐treatment, the patient is well with no evidence of recurrence.ConclusionThis case demonstrated the successful salvage treatment of an extraneural recurrence of an intracranial GCT using surgical resection and a high‐dose chemotherapy and autologous stem‐cell transplantation regimen, highlighting the unique factors which led to the selection of this regimen.
A study on path planning optimization of mobile robots based on hybrid algorithm
Authors: Garip Zeynep , Karayel Durmuş , Erhan Çimen Murat 
Published: November 2021

AbstractThe purpose of this study is to develop a novel hybrid meta‐heuristic algorithm for optimal path planning of the mobile robot. A novel hybrid algorithm based on particle swarm optimization (PSO), firefly algorithm (FA), and cuckoo search (CS) is proposed in order to improve the efficiency of algorithms and minimize the cost performance criterion in path planning. First, A MATLAB based interface was designed to easily perform all activities such as generating maps by processing the images taken from the camera, finding paths with algorithms, communicating with robots, and navigating according to path information that the robot determines with algorithms. Second, for path planning in mobile robots, the developed CS‐PSO‐FA hybrid algorithm and CS, FA, PSO algorithms were carried out both simulation and experimentally without hitting obstacles in similar working environments. In addition, various applications are performed in the various simulation environments to verify the developed CS‐PSO‐FA hybrid algorithm and the obtained results are compared. In conclusion, it is demonstrated that the path obtained with the novel hybrid CS‐PSO‐FA algorithm is shorter than CS, PSO, and FA algorithms and thus has a higher performance and the feasibility.
Synthesis and Characterization of Green Polyurethane Coatings Derived from Niger‐Seed‐Oil‐Based Polyesteramide Polyols
Authors: Doke Ranjeet B. , Paraskar Pavan M. , Rajput Yogeshsing N. , Kulkarni Ravindra D. 
Published: November 2021

AbstractPolymeric researchers are trying to use renewable resources for polymeric resins in the coating industry to reduce fossil or petroleum feedstock reliance significantly. The present research attempts to develop a polyurethane (PU) coating for the first time from Niger seed oil (NSO). The polyesteramide polyols are synthesized by amidation of Niger seed oil with diethanolamine and further esterification with different biobased dicarboxylic acids (phthalic, itaconic, and dimer) to introduce a required functionality of hydroxyl group. Spectroscopic studies of Niger‐seed‐oil‐based fatty diethanolamide and polyesteramide polyols are carried out by Fourier‐transform infrared spectroscopy and proton nuclear magnetic resonance. The polyurethane coatings are prepared from synthesized polyesteramide polyols and hexamethylene diisocyanate biuret (HDI‐B). The cross‐link density of PU coatings demonstrated by gel content method and the corrosion study is carried by salt water immersion technique. The PU coatings are also studied for glass transition temperature (Tg) and thermal stability by differential scanning calorimetry and thermogravimetric analysis.Practical Applications: The long aliphatic chain provides flexibility, whereas the rigid structure of polyols enhances the hardness of PU coating. The phthalic‐based PU metal coatings depict excellent hardness, gloss, hydrophobicity, and chemical resistance compared to itaconic and dimer‐acid‐based PU.