bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preliminary Support of a Behavioral Intervention for Trait Conscientiousness in Multiple Sclerosis
Authors: Fuchs Tom A. , Jaworski Michael G. , Youngs Margaret , Abdel-Kerim Omar , Wojcik Curtis , Weinstock-Guttman Bianca , Benedict Ralph H.B. 
Published: July 2021

Abstract

Background:
Conscientiousness, or the proclivity for deliberation, achievement, and order, declines in many individuals with multiple sclerosis (MS). Decreased conscientiousness predicts future cognitive deterioration, brain atrophy, and employment loss in individuals with MS. As a psychological trait, it may be an actionable antecedent to these important outcomes. We pilot tested an application (app)-facilitated behavioral intervention to help adaptation to low conscientiousness and, in turn, improve employment.

Methods:
Eleven individuals with MS (5 treatment, 6 control) with low conscientiousness were recruited for a 12-week randomized controlled trial. The treatment group received a newly developed behavioral treatment and smartphone app designed to help people behave more conscientiously, 2 teleconference booster sessions, and weekly telephone calls to monitor progress. Employment changes were recorded at baseline and follow-up. Patients provided detailed posttreatment interviews.

Results:
Participant groups were matched on baseline age, sex, education, disease duration, hours worked, and conscientiousness. All participants in the treatment arm reported benefits, found the app easy to use, and would recommend it to others. The treatment group reported significantly more positive work outcomes relative to controls at follow-up (P = .028). Other positive life changes were described by treatment participants during post-treatment interviews.

Conclusions:
These results support the hypothesis that behaviors typically associated with low conscientiousness may be addressed by behavioral therapy in the MS population. In addition to the positive employment changes in the treatment group, several other quality of life changes were described by study participants. Additional research is needed.
Myocarditis Secondary to COVID 19 Infection: A Case-Report
Authors: Khadidiatou Gueye , Modou Seye , Lamine S. Y. Sidy , Moina-Hanifa Ismael Ibouroi , Cheikh Gaye , Baro B. A. Amadou , Momar Dioum , Bara Diop Ibrahima 
Published: July 2021

Introduction: Coronavirus disease 2019 (COVID 19) is an emerging viral infection caused by the strain of coronavirus SARS-CoV-2, primarily affecting the respiratory system. However, it can be responsible for heart damage.
The aim of this work was to report a case of symptomatic myocarditis in a 53-year-old patient.
Patient and Observation: We report the case of a 53-year-old patient with no particular history or cardiovascular risk factor found who had consulted in June 2020 in a hospital for dyspnea, dizziness and palpitations in whom the electrocardiogram had demonstrated ventricular tachycardia. The echocardiography was normal and coronary artery disease was ruled out on coronary angiography and antiarrhythmic treatment allowed it to regress. Two months later, after a break in therapy, this tachycardia recurred despite several electrical and chemical cardioversions. Subsequently, myocarditis was suspected. This motivated the realization of a cardiac magnetic resonance imaging (MRI) which came back in favor of myocarditis. As part of the etiological research, RT-PCR and COVID 19 serology were requested and the serology returned positive for IgG.
Conclusion: COVID 19 disease is known for its respiratory manifestations. However, several cases of cardiac involvement, in particular myocardial damage, have been described and among these, a considerable proportion of arrhythmias. They can be multifactorial in origin, due to the virus itself, or the prolongation of the QT interval from various drug therapies. These arrhythmias are the source of sudden death, hence the interest of RT-PCR and COVID 19 serology, but also the need for early and appropriate management, as well as long-term monitoring of patients. cured patients.
Molecular Signature of Human Papillomavirus in Upper Aerodigestive Tract Cancers in Congo-Brazzaville
Authors: Boumba Anicet Luc Magloire , Diembi Sylvain , Otouana Boris. , Gouoni G. C. , Okoko A. B. Ecokounda , Odzili F. Itiere , Peko Jean Felix , Ondzotto Gottran 
Published: July 2021

Introduction: Carcinomas of the upper aerodigestive tract have a tropism on the epidermoid mucosa. HPV infection remains one of the risk factors for this cancer. This work aimed to study the presence of human papillomavirus (HPV) in carcinomas of the VADS.
Materials and Methods: This was a cross-sectional descriptive and analytical study with retrospective data collection over 7 years. The molecular analysis was conducted in Pointe-Noire using Xpert® HPV technology (GeneXpert, Cepheid). The variables studied were anatomopathological and virological.
Results: The overall molecular prevalence of oncogenic HPV was 28.1%. HPV-16 and HPV-18/45 were the incriminating genotypes in 88.9% and 11.4% of cases, respectively. A statistically significant association was found between co-infection with HPV-oncogenes in subjects over 40 years of age (P=0.01) and the development of these HPVs in squamous cell carcinomas (p=0.02). Notably, oncogenic HPV was found in the majority of laryngeal carcinomas.
Conclusion: In countries with limited resources, the Xpert HPV technology from GéneXpert is a reliable and rapid solution for the virological diagnosis of oncogenic HPV associated with carcinomas of the VADS. HPV-16 remains the most prevalent genotype.
Juventudes, tecnologias e consumo midiático: Andanças virtuais revelam a constituição do novo // Youthfulness, technologies and mediatic consumption: Virtual roaming reveal the constitution of the new
Authors: Moreira Benedito Dielcio , Fichtner Bernd 
Published: July 2021

Resumo
Este texto traz como proposta uma discussão sobre relação do jovem com as novas tecnologias de informação e comunicação, a partir de duas premissas básicas: há o novo se constituindo no modo como os jovens utilizam as tecnologias digitais e se relacionam com outros atores midiáticos, assim como este novo se estabelece em um território virtual onde as incertezas e a aparente desordem são os condutores de todo este processo. Mais do que apresentar respostas, o propósito aqui é constituir algumas questões essenciais para se pensar nesta arena de embates simbólicos, em que jovens e adolescentes estão entre os principais usuários e atores. Iniciamos o texto com uma discussão sobre a ideia de juventude e depois avançamos para a necessidade de mirar o futuro como condição para o entendimento das interações virtuais. Ao final, trazemos alguns resultados obtidos na pesquisa nacional “Jovem e consumo midiático em tempos de convergência” como exemplos da complexidade que este universo se revela.

Abstract
This article brings as proposal a discussion about teenager's relation to the new information and communication technologies, from two basic premises: there is the new constituting the manner teenagers use digital technologies and relate to other mediatic actors, so as the new establishes in a virtual territory where uncertainties and the apparent disorder are the conductors of all this process. More than to present answers, the purpose here is to build some essential questions to think about this symbolic impingement arena, in which teenagers and adolescents are among the principal users and actors. We initiate with a discussion about the idea of youthfulness and after we advance to the necessity to aim at the future as a condition for the understanding of virtual interactions. At the end, we bring some results obtained in national research "Teenagers and mediatic consumption in time of convergence" as examples of complexity that this universe reveals.
Bridging Indigenous and Western sciences in freshwater research, monitoring, and management in Canada
Authors: Alexander Steven M. , Provencher Jennifer F. , Henri Dominique A. , Nanayakkara Lushani , Taylor Jessica J. , Berberi Albana , Lloren Jed Immanuel , Johnson Jay T. , Ballard Myrle , Cooke Steven J. 
Published: July 2021

Abstract
Mutually respectful and reciprocal relationships between people and their environment is a central tenet of many Indigenous worldviews. Across the Americas, this relational connection is particularly evident when it comes to freshwater ecosystems. However, there are numerous threats to these central relationships between Indigenous peoples and their environment. Using all available ways of knowing to conserve, prioritize, and restore relationships between Indigenous peoples and the environment they live in, and are a part of, is critical. Despite legislative requirements and policy commitments, developing and implementing inclusive approaches that bridge multiple ways of knowing remains a challenge.
This systematic map examines the extent, range, and nature of published case studies that seek to bridge Indigenous and Western sciences in ecological research, monitoring, or natural resource management across Canada's freshwater aquatic ecosystems. A total of 74 Canadian case studies from 72 articles were included in the systematic map. There were 30 distinct species of focus across the collection of case studies.
This systematic map highlights the diversity of ways knowledge systems can be woven, but that the application of these approaches is limited to some key regions (the Pacific and northern regions) and species (whitefish and salmon). The extent and nature of information provided with regards to demographics (e.g., gender, age) of Indigenous knowledge holders contributing to the studies varied widely and in general was poorly reported. Across all of the case studies included in the systematic map there were 78 distinct Indigenous knowledge systems represented.
Fifteen different methodological approaches were identified with community‐based participatory research being the most prevalent approach. The presence and diversity of Indigenous methodologies employed was also notable and was greater as compared to a previous study of Canada's coastal marine regions.
Collectively, these findings point to a potential emerging transformation in research focused on freshwater ecosystems, habitats, and species to a practice that elevates the role of Indigenous communities, centres Indigenous science and knowledge, and is informed by Indigenous ways of being and doing.
Field‐Effect Chiral Anomaly Devices with Dirac Semimetal
Authors: Chen Jiewei , Zhang Ting , Wang Jingli , Zhang Ning , Ji Wei , Zhou Shuyun , Chai Yang 
Published: July 2021

AbstractCharge‐based field‐effect transistors (FETs) greatly suffer from unavoidable carrier scattering and heat dissipation. Analogous to valley degree of freedom in semiconductors, chiral anomaly current in Weyl/Dirac semimetals is theoretically predicted to be nearly nondissipative over long distances, but still lacks experimental ways to efficiently control its transport. Here, field‐effect chirality devices are demonstrated with Dirac semimetal PtSe2, in which its Fermi level is close to the Dirac point in the conduction band owing to intrinsic defects. The chiral anomaly is further corroborated by the planar Hall effect and nonlocal valley transport measurement, which can also be effectively modulated by external fields, showing robust nonlocal valley transport with micrometer diffusion length. Similar to charge‐based FETs, the chiral conductivity in PtSe2 devices can be modulated by electrostatic gating with an ON/OFF ratio of more than 103. Basic logic functions in the devices are also demonstrated with electric and magnetic fields as input signals.
Enhanced Trion Emission in Monolayer MoSe2 by Constructing a Type‐I Van Der Waals Heterostructure
Authors: Duan Juanmei , Chava Phanish , Ghorbani‐Asl Mahdi , Erb Denise , Hu Liang , Krasheninnikov Arkady V. , Schneider Harald , Rebohle Lars , Erbe Artur , Helm Manfred , Zeng Yu‐Jia , Zhou Shengqiang , Prucnal Slawomir 
Published: July 2021

AbstractTrions, quasi‐particles consisting of two electrons combined with one hole or of two holes with one electron, have recently been observed in transition metal dichalcogenides (TMDCs) and drawn increasing attention due to potential applications of these materials in light‐emitting diodes, valleytronic devices as well as for being a testbed for understanding many‐body phenomena. Therefore, it is important to enhance the trion emission and its stability. In this study, a MoSe2/FePS3 van der Waals heterostructure (vdWH) with type‐I band alignment is constructed, which allows for carriers injection from FePS3 to MoSe2. At low temperatures, the neutral exciton (X0) emission in this vdWH is almost completely suppressed. The ITrion/Ix0 intensity ratio increases from 0.44 in a single MoSe2 monolayer to 20 in this heterostructure with the trion charging state changing from negative in the monolayer to positive in the heterostructure. The optical pumping with circularly polarized light shows a 14% polarization for the trion emission in MoSe2/FePS3. Moreover, forming such type‐I vdWH also gives rise to a 20‐fold enhancement of the room temperature photoluminescence from monolayer MoSe2. These results demonstrate a novel approach to convert excitons to trions in monolayer 2D TMDCs via interlayer doping effect using type‐I band alignment in vdWH.
Organocatalytic Enantioselective [4+3]‐Cycloadditions of Azaoxyallyl Cations with 2‐Aminophenyl Enones
Authors: Lee Chang Yoon , Kwon Yong Il , Jang Hyun Sun , Lee Sumin , Chun Yoo Lim , Jung Junyang , Kim Sung‐Gon 
Published: July 2021

AbstractThe first organocatalytic asymmetric [4+3]‐cycloaddition of 2‐aminophenyl α,β‐unsaturated carbonyls with in situ generated azaoxyallyl cations was developed, and enantioenriched functionalized seven‐membered 1,4‐benzodiazepine‐3‐ones were obtained in good yields and with excellent enantioselectivities. This approach was also extended to the first asymmetric [4+3]‐cycloaddition of δ‐hydroxy α,β‐unsaturated carbonyls, affording 1,4‐oxazepanes in one step under mild conditions. Several of the novel adducts demonstrated promising bioactivity in the prevention of peripheral nerve degeneration.magnified image
High‐Resolution In‐Situ Synchrotron X‐Ray Studies of Inorganic Perovskite CsPbBr3: New Symmetry Assignments and Structural Phase Transitions
Authors: Liu Sizhan , DeFilippo Alexander R. , Balasubramanian Mahalingam , Liu Zhenxian , Wang SuYin Grass , Chen Yu‐Sheng , Chariton Stella , Prakapenka Vitali , Luo Xiangpeng , Zhao Liuyan , Martin Jovan San , Lin Yixiong , Yan Yong , Ghose Sanjit K. , Tyson Trevor A. 
Published: July 2021

AbstractPerovskite photovoltaic ABX3 systems are being studied due to their high energy‐conversion efficiencies with current emphasis placed on pure inorganic systems. In this work, synchrotron single‐crystal diffraction measurements combined with second harmonic generation measurements reveal the absence of inversion symmetry below room temperature in CsPbBr3. Local structural analysis by pair distribution function and X‐ray absorption fine structure methods are performed to ascertain the local ordering, atomic pair correlations, and phase evolution in a broad range of temperatures. The currently accepted space group assignments for CsPbBr3 are found to be incorrect in a manner that profoundly impacts physical properties. New assignments are obtained for the bulk structure: (above ≈410 K), P21/m (between ≈300 K and ≈410 K), and the polar group Pm (below ≈300 K), respectively. The newly observed structural distortions exist in the bulk structure consistent with the expectation of previous photoluminescence and Raman measurements. High‐pressure measurements reveal multiple low‐pressure phases, one of which exists as a metastable phase at ambient pressure. This work should help guide research in the perovskite photovoltaic community to better control the structure under operational conditions and further improve transport and optical properties.
Comparative proteomic based analysis of grain nutrients in two hulless barley cultivars
Authors: Wang Yulin , Yuan Hongjun , Zha Sang , Jabu Thondup , Xu Qijun 
Published: July 2021

AbstractHullessbarley (Hordeum vulgare L.) is a barley cultivar, serving as one of the major food crops worldwide. The main nutrients in hulless barley are starch, protein, and β‐glucan, the contents of which vary considerably among different cultivars. However, the potential molecular mechanisms that underlie these variations in nutrient are still insufficiently clear. In this study, the nutrient content of two hulless barley cultivars (‘Zangqing 2000’ and ‘C2’) was analyzed, and quantitative tandem mass tag‐LC‐MS/MS proteomics and bioinformatics analysis were used to verify the differentially expressed proteins (DEPs) between the two cultivars. Parallel reaction monitoring (PRM) analysis was used to verify the expression change of candidate DEPs. The content of starch and amylose in C2 was lower than that in Zangqing 2000, and β‐glucan, protein content, and amylopectin showed a higher concentration in C2 hulless barley cultivar. A total of 326 DEPs were identified, with 108 induced proteins and 218 reduced proteins in C2 compared with Zangqing 2000. Further functional and pathways analysis of DEPs revealed that C2 hulless barley cultivar has relatively more biological activities, and DEPs in C2 hulless barley cultivar were mainly associated with the biological processes of multiple important metabolic pathways. Moreover, PRM analysis showed the accuracy level of quantitative proteomic data. Overall, this was the first study that undertook the proteomic analysis in Zangqing 2000 and C2 and the results revealed the molecular mechanisms of seed nutrient biosynthesis and accumulation, which provide key insights about the development of hulless barley quality.
Benchmark Acetylene Binding Affinity and Separation through Induced Fit in a Flexible Hybrid Ultramicroporous Material
Authors: Shivanna Mohana , Otake Ken‐ichi , Song Bai‐Qiao , van Wyk Lisa M. , Yang Qing‐Yuan , Kumar Naveen , Feldmann Wesley K. , Pham Tony , Suepaul Shanelle , Space Brian , Barbour Leonard J. , Kitagawa Susumu , Zaworotko Michael J. 
Published: July 2021

AbstractStructural changes at the active site of an enzyme induced by binding to a substrate molecule can result in enhanced activity in biological systems. Herein, we report that the new hybrid ultramicroporous material sql‐SIFSIX‐bpe‐Zn exhibits an induced fit binding mechanism when exposed to acetylene, C2H2. The resulting phase change affords exceptionally strong C2H2binding that in turn enables highly selective C2H2/C2H4and C2H2/CO2separation demonstrated by dynamic breakthrough experiments. sql‐SIFSIX‐bpe‐Zn was observed to exhibit at least four phases: as‐synthesised (α); activated (β); and C2H2induced phases (β′ and γ). sql‐SIFSIX‐bpe‐Zn‐β exhibited strong affinity for C2H2at ambient conditions as demonstrated by benchmark isosteric heat of adsorption (Qst) of 67.5 kJ mol−1validated through in situ pressure gradient differential scanning calorimetry (PG‐DSC). Further, in situ characterisation and DFT calculations provide insight into the mechanism of the C2H2induced fit transformation, binding positions and the nature of host‐guest and guest‐guest interactions.
Highly selective custom‐made chitosan based membranes with reduced fuel permeability for direct methanol fuel cells
Authors: Divya Kumar , Rana Dipak , Rameesha Laila , Sri Abirami Saraswathi Meenakshi Sundram , Nagendran Alagumalai 
Published: July 2021

AbstractCustom‐made nanocomposite proton exchange membranes (PEMs) are fabricated using the blends of sulfonated chitosan (S‐Chitosan) and sulfonated graphene oxide (SGO) nanosheets for direct methanol fuel cells (DMFCs). Sulfonation of chitosan and GO are carried out by 1,3‐propane sultone and sulfanilic acid, respectively. Scanning electron microscope (SEM) with energy dispersive X‐ray investigation revealed that the thick, folded and wrinkled sheet‐like morphology of SGO and the existence of elemental sulfur. SEM and atomic force microscopy images showed the uniform dispersion of hydrophilic SGO nanosheets. Besides the S‐Chitosan/SGO membranes showed higher water uptake, swelling ratio and ion exchange capacity due to the enhancement in hydrophilicity. The modified PEMs displayed improvement in proton conductivity since the ion‐exchangeable sulfonic acid groups facilitate the proton conduction and effectively resist the methanol permeability by forming a strong hydrogen bond network with chitosan and thus diminish the void volume. Particularly, S‐Chiotsan‐1 membrane showed superior proton conductivity of 4.86 × 10−3 Scm−1 at (25°C), selectivity of 1.89 × 105 Scm−3 s and lesser methanol permeability of 2.57 × 10−8 cm2s−1. Overall results suggest that the S‐Chitosan/SGO membranes found to be a suitable alternate for Nafion® in DMFCs.
Catechol‐containing waterborne polyurethane adhesive inspired by mussel proteins
Authors: Ren Longfang , Lin Congcong , Lei Pingchuan 
Published: July 2021

AbstractA series of waterborne polyurethane (PDMAPU) containing catechol group were prepared by double‐bond random copolymerization of terminated double bond polyurethane prepolymer with modified acrylamido dopamine under thermal initiation. This kind of mussel‐like waterborne polyurethane adhesive is inspired by marine mussel, as well as it is environment‐friendly and used in bonding of leather. FTIR and 1H NMR proved the successful introduction of catechol group into polyurethane matrix. Oxidative cross‐linking between catechol unit and molecular chain in PDMAPU structure, the thermal stability and crystallization ability of PDMAPU was significantly improved. The increase of the particle size of PDMAPU emulsion showed that the introduction of catechol group changed the microstructure of polyurethane and enhanced the cross‐linking degree. The water resistance of polyurethane emulsion was further improved. Compared with PU without catechol group, the peel strength of leather substrate adhered by PDMAPU emulsion increased from 0.42 to 1.93 MPa, which indicated that PDMAPU has better bonding properties with leather. The bidentate hydrogen bond formed with catechol group as the reaction sites is considered to be the key reason for the adhesion of mussel‐like polyurethane adhesive to hydrophilic substrates. This work provides an alternative to prepare environment‐friendly high performance adhesive for hydrophilic substrates.
Synthesis and Dehydrogenation of Organic Salts of a Five‐Membered B/N Anionic Chain, a Novel Ionic Liquid
Authors: Chen Xi‐Meng , Jiang Xin , Jing Yi , Chen Xuenian 
Published: July 2021

AbstractWe have synthesized the tetrabutylammonium ([Bu4N]+), tetraethylammonium ([Et4N]+), guanidinium ([C(NH2)3]+), and methylguanidinium ([C(N3H5CH3)]+) salts of the [BH3(NH2BH2)2H]− anion, a five‐membered B/N anionic chain, in high yields by the metathesis reactions of Na[BH3(NH2BH2)2H] with the corresponding halides and characterized them by NMR (11B, 11B{1H}, 1H, 1H{11B}, 13C), IR, elemental analysis, TGA‐DSC, and TGA‐MS. These complexes behave like ionic liquids (ILs), in which the melting point of the [Bu4N][BH3(NH2BH2)2H] is the lowest (−51 °C). The dehydrogenation of these ILs have been studied through the thermal decomposition and catalytic hydrolysis in aqueous solution using the noble or non‐noble metals or their salts as catalysts, and the results indicate that these ILs of five‐membered B/N anionic chain are promising hydrogen storage materials.