bluuebunny/crossref_metadata_2025_split huggingface dataset:
La consécration à bas bruit d’un moissonneur de mémoire
Authors: Ducournau Claire 
Published: December 2020

Si Tierno Monénembo apparaît comme l’un des écrivains africains francophones contemporains les plus consacrés, il n’en reste pas moins d’une grande discrétion dans l’espace littéraire et médiatique. C’est cette discrétion qui sert ici de fil directeur pour envisager sa trajectoire littéraire et son positionnement public, en mobilisant des archives éditoriales, ses textes littéraires et ses dossiers de réception. Cet article examine d’abord les étapes chronologiques de la carrière « à bas bruit » de T. Monénembo, indissociable de son appartenance à l’abondante diaspora guinéenne et de sa réception critique, plus favorable que ses chiffres de vente sur le court terme. La mémoire joue un rôle de plus en plus central dans son oeuvre littéraire, ce qui redouble la distance géographique entretenue vis-à-vis de l’Afrique contemporaine par une exigeante et patiente exploration historique. Moissonneur d’une mémoire africaine dispersée sur trois continents, T. Monénembo fonde par ce geste l’autorité de sa parole en tant qu’intellectuel, n’hésitant pas à sortir ponctuellement de sa discrétion pour dénoncer l’ordre établi. Par un apparent paradoxe, cet écrivain qui a lui-même réfléchi sur la faillite des élites africaines incarne ainsi une figure d’intellectuel exilique, selon la définition proposée par Edward Said.
Du fou romanesque à la « folle » écriture de Tierno Monénembo
Authors: Coulibaly Adama 
Published: December 2020

Tierno Monénembo est un auteur constant dans l’écriture du chaos, de l’absurde, de la folie. Ses neuf premiers romans convoquent la folie, soit en la modalisant autour d’un personnage, soit en l’aménageant en trait d’écriture qui crée un univers carnavalesque, excentrique et bouffon. La trame argumentative de cette contribution est l’analyse de ce motif, de ses motivations et enjeux. À partir d’une typologie du fou romanesque, en s’intéressant aux dires et aux actes du personnage, à sa place et à son impact dans l’économie du texte, nous verrons que la « recevabilité » et la pertinence de ce discours romanesque sont lisibles à la lumière de la déconstruction ou du couronnement / découronnement bakhtinien. En substance, l’écriture de la folie et la folie de l’écriture chez T. Monénembo, plus qu’une marque de fabrique de son roman, esthétise la folie pour interroger l’État africain postcolonial et le sujet traumatique qui en découle.
Educación sentimental, humorismo y nuevos modelos femeninos: Plaerdemavida («Tirant»), Triola («Platir») y otras doncellas confidentes en libros de caballerías
Authors: Zoppi Federica 
Published: December 2020

En el presente artículo se analiza un estereotipo femenino de los libros de caballerías, el de las doncellas confidentes,desde la perspectiva de la función didáctica que desempeñan en el ámbito sentimental y erótico respecto a sus amigas. Enfocando algunas figuras concretas, como Plaerdemavida en Tirant lo Blanc y Triola en Platir, se considera elvalor del humorismo en la asunción de un papel educativo que posibilita el establecimiento, por parte de estas mujeres,de un juego con el concepto de amor y de sexualidad. Dicho juego participa en la creación de un paradigma deconducta femenina que se escapa de las normas convencionales para abrazar también costumbres potencialmentetransgresivas desde el punto de vista social.
Atom-subjected optical dipole force exerted by femtosecond laser field
Authors: Liu Ji-Cai , Cheng Fei , Zhao Ya-Nan , Guo Fen-Fen ,   College of Mathematics and Physics, North China Electric Power University, Beijing 102206, China
Published: December 2020

<sec>	In 2011, Kumar et al. (2011 <i>Phys. Rev. A</i> <b>84</b> 043402) studied the light force acting on a beam of neutral two-level atoms superimposed on a few-cycle-pulse Gaussian laser field under both resonant and off-resonant conditions by solving the optical Bloch equation beyond the rotating-wave approximation, and they found that under resonant condition the transverse component of the light force shows oscillatory behavior but vanishes when a time average is taken, and the time averaged longitudinal force is nonzero only when the Rabi frequency is smaller than the resonant frequency and vanishes when the Rabi frequency is equal to or larger than the resonant frequency.</sec><sec> In this paper, we investigate further the strong nonlinear optical interaction between a two-level atomic system and a femtosecond Gaussian laser pulse by solving numerically the full-wave optical Bloch equations through using the predictor-corrector method. It is found that the light forces and the light potentials are sensitive to the value of the Rabi frequency and the detuning of the laser field. Under the resonant condition, the instant light forces induced by the femtosecond laser pulse change their signs as a function of time. The instant longitudinal light force changes its sign at twice the Rabi frequency, while the instant transverse light force changes its sign at twice the light carrier-wave frequency. However, none of the time-averaged light forces is zero, showing periodical oscillation characters as a function of Rabi frequency. Both of the time-averaged longitudinal and transverse light forces oscillate at the Rabi frequency corresponding to the pulse area of 2<inline-formula><tex-math id="Z-20190110084840-1">\begin{document}${\text{π}}$\end{document}</tex-math><alternatives><graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="3-20182016-e_Z-20190110084840-1.jpg"/><graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="3-20182016-e_Z-20190110084840-1.png"/></alternatives></inline-formula>. The time-averaged transverse light force shows also a trend of enhancement with Rabi frequency increasing, and the time-averaged longitudinal light force shows also a saturation trend with the increase of the Rabi frequency. The optical potential depends strongly on the detuning. It changes gradually from repulsive potential to attractive potential when the detuning defined here changes from negative to positive detuning. When the field is nearly resonant, the optical potential then oscillates between repulsive and attractive potentials. Therefore, neutral atoms can be focused, defocused, trapped, splitted or steered by the femtosecond laser field with appropriate detuning and Rabi frequency. </sec>
Design of gain region of high-power vertical external cavity surface emitting semiconductor laser and its fabrication
Authors: Zhang Ji-Ye , Zhang Jian-Wei , Zeng Yu-Gang , Zhang Jun , Ning Yong-Qiang , Zhang Xing , Qin Li , Liu Yun , Wang Li-Jun ,   State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China,   Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
Published: December 2020

<sec>	The vertical external cavity surface emitting laser (VECSEL) is one of the hottest research fields of semiconductor lasers, due to its high power and good beam quality. However, there are few reports about how to systematically design the active region of VECSEL. In this paper, the gain design of quantum wells, which are the most important region within the VECSEL, is carried out.	</sec><sec>	To achieve low power consumption under high temperature condition, epitaxial structure of the VECSEL is optimized by using the commercial software PICS3D. Firstly, the relationship between the structure of quantum well and the gain is simulated by the <i>k</i>·<i>p</i> method. Then, the gain spectra of quantum wells at different carrier densities and temperatures are compared with each other, and the optimal composition and thickness of quantum well are thus determined. The temperature drift coefficient is 0.36 nm/K, obtained by simulating the drift of the gain peak wavelength at the working temperature. Finally, the gain spectra of quantum wells with five different barriers are compared with each other. The slight blue shift of the gain peak in the quantum well with five different barriers accommodates the different emission thermal drifts of the quantum well at high temperature operation. With the GaAsP barriers on both sides of quantum well the gain characteristics of quantum wells can be improved efficiently.	</sec><sec>	The designed structure is deposited by the MOCVD system. According to the reflection spectrum of the gain chip, measured by ellipsometer, the stop-band over 100 nm is centered at the about 970 nm wavelength, confirming accurate growth of the VECSEL. The 808 nm pump laser is focused on the surface of VECSEL chip at an incident angle from 30° to 50°. The VECSEL light-light characteristics are tested under the output coupling mirror with different reflectivity. The output power of VECSEL with a 97.7% reflectance output coupling mirror reaches 9.82 W at the pumping power of 35 W, without saturating the power curve. By using the external mirrors with different reflectivity, there appears the wavelength shift with the pumping power changing from 0.216 nm/W to 0.16 nm/W. Thus, the internal heating effects are different for VECSEL with different mirrors. The divergence angles at two orthogonal directions are 9.2° and 9.0°, respectively. And the circle profile of optical field shows good symmetry.	</sec>
Antimicrobial Activity from Species Plectranthus amboinicus (Lour.) Spreng, a Review
Authors: Silva Juliane Maria dos Santos , Almeida Jackson Roberto Guedes da Silva , Alves Cristiane dos Santos Cerqueira , Nery Daniel Amando , Damasceno Livia Maria Oliveira , Araújo Camila de Souza , Rolim Larissa Araújo , Oliveira Ana Paula de 
Published: December 2020

Introduction: Nowadays, several bacteria have acquired resistance to available antimicrobial agents making necessary the search for new therapeutic alternatives. Plectranthus amboinicus L. is a succulent and aromatic herb, popularly known as thick leaf mint, used in popular medicine for the treatment of colds, digestive diseases, asthma, headache and to fight pathogenic bacteria activity. In view the antimicrobial activity of P. amboinicus this study had as aim to review publications involving researches about antimicrobial activity of this species.
Materials and Methods: For this, PubMed, Scopus, Science Direct and Scielo databases were consulted in November 2020 using the keywords Plectranthus amboinicus and antimicrobial activity. In vitro and/or in vivo studies on the antimicrobial activity of the species in the last 10 years were considered.
Results: The main microorganisms evaluated were: Klebsiella pneumoniae, Mycobacterium tuberculosis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and some Candida species. The essential oils had carvacrol, germacrene D, thymol and camphor as main constituents. Most studies evaluated the antimicrobial activity using broth dilution and agar diffusion methods. In most studies essential oil, extracts and/or isolated substances showed significant antimicrobial activity. Synergistic activity was also observed through association with antibiotics.
Conclusion: P. amboinicus has therapeutic potential for antimicrobial treatments and can be an alternative to the treatment of resistant microorganisms and that further in vivo and clinical studies with the species are still needed.
Risk Factors for Asymptomatic Peripheral Artery Disease in Type II Diabetes Mellitus Patients, a Cross-Sectional Study at Tertiary care Hospital
Authors: Shaikh Samiullah , Ali Memon Mohammad , Saifullah Shaikh 
Published: December 2020

Aims: The study was conducted to check the association of risk factors with asymptomatic peripheral artery disease (PAD) in patients with type 2 diabetes mellitus in local population.
Study Design: Cross sectional study.
Place and Duration of Study: Department of Medicine in public sector university from 14th June 2013 to 13th December 2014.
Methodology: Male & female patients with ≥ 35 years of age, having type II diabetes mellitus for ≥ 5 years duration were included in the study. Enrolled patients were evaluated for peripheral artery disease by doing color Doppler study and their Ankle-brachial index was calculated. Ankle-brachial index < 0.9 was criteria for Peripheral arterial disease. Data was analyzed using statistical software SPSS version 21.
Results: Of 385 consecutive patients, 212 (55%) were male and 173 (45%) were female. 134 (34.8%) patients had peripheral artery disease. Mean age of PAD patients was 46.52 ± 8.67 years. The Proportion of males was 64.2% for PAD and 50.2% for Non-PAD patients. Association was found between peripheral artery disease and gender (male); OR 1.77 (1.15- 2.73), Age; OR 0.96 (0.93 - 0.99), smoking; OR 6.96 (3.45- 14.03) Hba1C; OR 2.74 (1.83 - 4.13), with significant P-value of 0.01, 0.04, < 0.001 and < 0.001 respectively.
Conclusion: Asymptomatic peripheral artery disease is common in type 2 Diabetic patients particularly those who are aged male, have uncontrolled diabetes, has longer duration and are smokers as well.
Experimental Evaluation of Double Air Pass Solar Collector in Humid Tropical Environment
Authors: Vermeil Kwamegni Seunou Kreis , Abraham Tetang Fokone , Marcel Edoun , Alexis Kuitche , Gabriel Ghiaus Adrian- 
Published: December 2020

The present work was focused on the experimental investigation of a double air pass solar collector which was designed and constructed at the Laboratory of Energetic and Thermal Applied of the National School of Agro-Industrial Sciences of the University of Ngaoundere. It consists of a double glazed cover with a surface of 0.47 m², an absorbent plate and a layer of thermal insulation. It allows simultaneous circulation and the same flow direction of the working fluid (air) on both side of the absorber. The experimental tests were conducted outdoor, in natural environment of Ngaoundéré city, during one month period, from 4 to 30 of April, between 9:00 am and 5:00 pm, local time. The research aim was to characterize, on one hand, the local weather conditions (solar radiation, ambient temperature, relative humidity and wind velocity), and on the other hand the collector performance. The solar collector was permanently oriented towards the South and tilted by 45° with respect to the horizontal plane. The analysis of the temperature profiles of different components of the collector showed that the maximum temperature was reached at 2:30 pm, when solar radiation was 1217 W/m² and they were 73.9°C, 61.7°C and 44.7°C for absorber, inner glass and outer glass, respectively. As concerning the outlet temperature of the heat transfer fluid, the analysis of the results shows that it goes up to 58.4°C and 52.2°C, while thermal efficiency was as high as 47.81% and 65.57% when the air flow velocities were setup at 0.5 m/s and 1.5 m/s, respectively.
Possibility of Usage of Seawater for Mixing and Curing of Concrete in Salty Water Localities
Authors: Ogunjiofor E. I. 
Published: December 2020

Aims: This study examines the possibility of using seawater as an alternative to freshwater in concrete mixing and curing in areas prone to saltwater. The study was as a result of shortage and scarcity of Freshwater in some parts of the world; mostly in the coastal areas, where seawater is the only source of water.
Place and Duration of Study: Seawater was obtained from Port Harcourt Tourist beach, River State, Nigeria was used to mix and cure a set of concrete cubes (CSW). And freshwater obtained from our Civil Engineering laboratory was used to mix and cure another set of concrete cubes (CFW) that serves as a control. The maximum days of curing were 28days.
Methodology: Concrete cubes of 150x150x150mm3 were produced and cured with sea and freshwater respectively. The compressive strength of those cubes were determined using Compression Testing Machine. The studied variable was only water used for mixing and curing of the concrete cubes. Other constituents of the concrete: cement, fine aggregate, and coarse aggregate were kept constant.
Results: It was found that the compressive strengths of concrete cubes mixed and cured with seawater at 7, 14, 21 and 28days were within the acceptable limits and a bit higher than those of cubes mixed and cured with fresh water. The variation in compressive strength of CSW and CFW at the 28th day of curing was just 1.45%. Hence, the seawater didn’t affect the compressive strength.
Conclusion: With the little variation in compressive strength between the CSW and CFW at the 28th day of curing; it is recommended that seawater can possibly be used for concrete mixing and curing in areas where freshwater is not available; provided that the concrete is kept inherently dry to prevent corrosion. In addition, higher concrete covers can be provided when designing the concrete structures. Meanwhile, careful and adequate design, well-supervised construction, and curing should be ensured to improve the ingress resistance of the concrete structures. However, the long-term effect of the seawater on the properties of concrete and reinforcements were not investigated.
Molecular Modeling of Some Benzodiazole Derivatives with EGFR Protein 1M17
Authors: Sony A. S. , Suresh Xavier 
Published: December 2020

Aims: To study the anticancer potential of benzodiazole derivatives using molecular modeling studies.
Study Design: Molecular Dynamics simulation study.
Place and Duration of Study: Sathyabama Institute of Science and Technology (SIST), Chennai, between June 2020 and August 2020.
Methodology: We studied the anticancer potential of benzodiazole derivatives using molecular modeling. Docking studies of the ligands with EGFR protein 1M17 was carried out using AutoDock.Molecular Dynamics simulation study was carried out using Playmolecule was used to verify the stability of the protein-ligand complex.
Results: Molecular docking studies showed a good binding affinity of the ligands with the protein 1m17. Benzodiazole derivative 4,6-dichloro-2-(trifluoromethyl)-1H-1,3-benzodiazole exhibited the lowest binding energy of (-6.42 kcal/mol) at the active site of EGFR (PDB code:1M17) consistent with its least inhibition coefficient (Ki =32.54 uM). Molecular dynamics simulation showed better stability of the ligand and protein complex.
Conclusion: Molecular modeling study of selected benzodiazole derivatives showed a very good binding affinity to EGFR protein 1m17. MD simulation of the best-docked ligand showed that the complex was stable. Our study demonstrated that benzodiazole derivatives can be potential anticancer drug candidates
Experimental Evaluation of Vitamin - D Supplementation on Memory and Learning Using Different Animal Models in Albino Rat
Authors: Pawar Namrata Rajendra , Karandikar Yogita Surendra , Bhosale Uma Anand , Doiphode Prachi 
Published: December 2020

Aim: We conducted this study with the aim to investigate the effect of vitamin D3 on spatial learning and memory in healthy young albino rat.
Study Design: Experimental evaluation.
Place and Duration of Study: Department of Pharmacology, Smt. Kashibai Navale Medical College and General Hospital (SKNMCGH), Pune, between October 2019 to February 2020.
Methodology: All the pharmacological experiments were conducted using Wistar albino rats (n=6), weighing between 100 g – 150 g. Total 18 animals (9 male and 9 female) were screened and marked into 3 different groups (6 in each group) Control (Normal saline 10 ml/kg), Vitamin D (Cholecalciferol 1000 IU/kg) and standard (Piracetam 200 mg/kg). Drugs were administered per os for 21 days. Elevated Plus Maze (Transfer Latency), Open Field Test (Rearing, Locomotion), Radial Arm Maze (Working and Reference memory) were used as amnesic models and their parameters for evaluation of this study.
Results: After 21 days of treatment among all the three groups, Transfer Latency (p=9.55) in elevated plus maze, Working memory (p=0.454) and Reference memory (p=0.929) observed in radial 8 arm maze were non significant. In open field apparatus pellets count was significant (0.010), rest all parameters were non significant.
Conclusion: The result of study suggests that no significant beneficial effect of Vitamin D was seen on various learning models as assessed by Elevated Plus Maze, Radial Arm Maze, Open Field Test.
Palladium‐Catalyzed 5‐exo‐dig Cyclization Cascade, Sequential Amination/Etherification for Stereoselective Construction of 3‐Methyleneindolinones
Authors: Zuo Youpeng , He Xinwei , Tang Qiang , Hu Wangcheng , Zhou Tongtong , Hu Wenbo , Shang Yongjia 
Published: December 2020

AbstractAn cascade intramolecular 5‐exo‐dig cyclization of N‐(2‐iodophenyl)propiolamides and sequential amination/etherification (with N‐hydroxybenzamides, phenyl hydroxycarbamate) protocol for the synthesis of amino‐ and phenoxy‐substituted 3‐methyleneindolinones using unexpensive Pd(PPh3)4 as catalyst has been developed. The protocol enables the assembly of structurally important oxindole cores featuring moderate functional group tolerance (particularly the halo group), affording a broad spectrum of products with diverse substituents in good to excellent yields.magnified image
COVID‐19 and cotton import demand in China
Authors: Muhammad Andrew , Smith S. Aaron , Yu Tun‐Hsiang Edward 
Published: December 2020

AbstractAs the leading import market for cotton, and leading export market for manufactured products like clothing and apparel, China provides the ideal case for examining how the COVID‐19 pandemic is affecting international cotton trade. The COVID‐19 outbreak has resulted in decreased global demand for products like clothing, directly affecting China's demand for cotton from exporting countries. In this study, we examined Chinese demand for imported cotton by product form (raw cotton and yarn) and by source (e.g., United States, India), as well as the dynamic price relationships across countries. Using year‐to‐date trade, demand estimates, and price forecasts, we assessed the impact of COVID‐19 on Chinese imports and the countries supplying this market. Depending on the projections, the most severe impacts of COVID‐19 on Chinese cotton imports are either behind us, or the latter half of 2020 could potentially be just as bad as the early part of the year. The outcome depends on the impact of manufactured‐product prices on imports; the effects of which are large but insignificant. As a consequence, even when imports from certain countries are projected to significantly decline, projection intervals suggest the possibility of a negligible decline or even a positive outcome.