bluuebunny/crossref_metadata_2025 huggingface dataset:
Combination of Cyclic Steam Stimulation and Steam Flooding to Improve Oil Recovery in Unconsolidated Sand Heavy Oil Reservoir
Authors: Suranto Ahmad Muraji , Swadesi Boni , Widyaningsih Indah , Widyaningsih Ratna , Murni Sri Wahyu , Alannafi Lufis Alfian
Published: October 2020

Steam injection can be success in increasing oil recovery by determining the steam chamber growth. It will impact on the steam distribution and steam performance in covering hot areas in the reservoir.  An injection plan and a proper cyclic steam stimulation (CSS) schedule are critical in predicting how steam chamber can grow and cover the heat area. A reservoir simulation model will be used to understand how CSS really impact in steam chamber generation and affect the oil recovery. This paper generates numerous scenarios to see how steam working in heavy oil system particularly in unconsolidated sand reservoir. Combine the CSS method and steam injection continue investigate in this research. We will validate the scenarios based on the how fast steam chest can grow and get maximum oil recovery. Reservoir simulation resulted how steam chest behavior in unconsolidated sand to improve oil recovery; It concluded that by combining CSS and Steam Injection, we may get a faster steam chest growth and higher oil recovery by 61.5% of heavy oil system.
In situ small angle X-ray scattering reveals solution phase discharge of Li-O2 batteries with weakly solvating electrolytes
Authors: Prehal Christian , Samojlov Aleksej , Nachtnebel Manfred , Kriechbaum Manfred , Amenitsch Heinz , Freunberger Stefan
Published: October 2020

Electrodepositing insulating and insoluble Li2O2 is the key process during discharge of aprotic Li-O2 batteries and determines rate, capacity, and reversibility. Current understanding states that the partition between surface adsorbed and dissolved LiO2 governs whether Li2O2 grows as a conformal surface film or larger particles, leading to low or high capacities, respectively. However, governing factors for Li2O2 packing density and capacity need better understanding, requiring in situ metrologies with structural sensitivity from the atomic to sub-micron scale. Here, we establish in situ small and wide angle X-ray scattering as a suitable method to record the Li2O2 phase evolution with atomic to sub-micrometer resolution during cycling a custom-built in situ Li-O2 cell. Combined with sophisticated data analysis, SAXS allows retrieving rich quantitative structural information from complex multi-phase systems. Surprisingly, we find that features are absent that would point at a Li2O2 surface film formed via two consecutive electron transfers, even in poorly solvating electrolytes thought to be prototypical for surface growth. All scattering data can be modeled by stacks of thin Li2O2 platelets eventually forming large toroidal particles. Higher discharge overpotentials (high currents) lead to smaller Li2O2 particles, but there is no transition to an electronically passivating, conformal Li2O2 coating. This implies that mass transport of reactive species rather than electronic transport through a Li2O2 film limits the discharge capacity. Provided that species mobilities and carbon surface areas are high, this allows for high discharge capacities even in poorly solvating electrolytes. The currently accepted Li-O2 reaction mechanism ought to be reconsidered.
Theoretical Estimates of Equilibrium Carbon and Hydrogen Isotope Effects in Microbial Methane Production and Anaerobic Oxidation of Methane
Authors: Gropp Jonathan , Iron Mark , Halevy Itay
Published: October 2020

Microbial production and consumption of methane are widespread in natural and artificial environments, with important economic and climatic implications. Attempts to use the isotopic composition of methane to constrain its sources are complicated by incomplete understanding of the mechanisms of variation in methane's isotopic composition. Knowledge of the equilibrium isotope fractionations among the large organic intracellular intermediates in the microbial pathways of methane production and consumption must form the basis of any exploration of the mechanisms of isotopic variation, but estimates of these equilibrium isotope fractionations are currently unavailable. To address this gap, we calculated the equilibrium isotopic fractionation of carbon (13C/12C) and hydrogen (D/H) isotopes among compounds in anaerobic methane metabolisms, as well as the abundance of multiple isotope substitutions ("clumping," e.g., 13C--D) in these compounds. The Density Functional Theory calculations employed the M06-L/def2-TZVP level of theory and the SMD implicit solvation model, which we have recently optimized for large organic molecules and tested against measured equilibrium isotope fractionations. The computed 13beta and 2beta values decrease with decreasing average oxidation state of the carbon atom in the molecules, resulting in a preference for enrichment of the molecules with more oxidized carbon in 13C and D. Using the computed $\beta$ values, we calculated the equilibrium isotope fractionation factors in the prominent methanogenesis pathways (hydrogenotrophic, methylotrophic and acetoclastic) and in the pathway for anaerobic oxidation of methane (AOM) over a temperature range of 0-700 degrees Celsius. Our calculated equilibrium fractionation factors compare favorably with experimental constrains, where available, and we used them to investigate the relation between the apparent isotope fractionation during methanogenesis and AOM and the thermodynamic drive for these reactions. We show that a detailed map of the equilibrium fractionation factors along these metabolic pathways allows an evaluation of the contribution of equilibrium and kinetic isotope effects to apparent isotope fractionations observed in laboratory, natural and artificial settings. The comprehensive set of equilibrium isotope fractionation factors calculated in this study provides a firm basis for future explorations of isotope effects in methane metabolism.
Polyvalent transition-state analogues of sialyl substrates strongly inhibit bacterial sialidases.
Authors: assailly coralie , bridot clarisse , saumonneau amélie , lottin paul , Roubinet Benoit , Krammer Eva-Maria , François francesca , vena frederica , landemarre ludovic , Alvarez-Dorta Dimitri , deniaud david , grandjean cyrille , tellier charles , Pascual Sagrario , montembault Véronique , Fontaine Laurent , Daligault Franck , Bouckaert Julie , gouin sebastien
Published: October 2020

Conjugation of the transitionstate-cation analogue DANA to polymeric scaffolds led to highly potent inhibitors of bacterial sialidases. Each clustered DANA on the polymers saw its inhibitory potency for S. pneumoniae or B. thetaiotaomicron sialidases improved by more than four orders of magnitude. This extends the multivalent concept to this important class of enzymes.
First-Principles Investigations of Magnetic Anisotropy and Spin-Crossover Behavior of Fe(III)-TBP Complexes
Authors: Khurana Rishu , Gupta Sameer , Ali Md. Ehesan
Published: October 2020

With the ongoing efforts to obtain mononuclear 3d-transition metal complexes that manifest slow relaxation of magnetization and hence, can behave as single molecule magnets (SMMs), we have modelled 14 novel Fe(III) complexes out of which nine behave as potential SMMs. These complexes possess large zero-field splitting (ZFS)parameter D in the range of -40 to -60 cm-1. The first-principles investigation of the ground-spin state applying density functional theory (DFT) and wave-function basedmulti-configurations methods e.g. SA-CASSCF/NEVPT2 are found to be quite consistent except for few delicate cases with near degenerate spin-states. In such cases, thehybrid B3LYP functional is found to be biased towards high-spin (HS) state. Altering the percentage of exact exchange admixed in B3LYP functional leads to intermediate spin(IS) ground state consistent with the multireference calculations. The origin of large zero field splitting (ZFS) in the Fe(III)-based trigonal bipyramidal (TBP) complexesis investigated and the D-values are further tuned by varying the axial ligands with group XV elements (N, P and As) and equatorial halide ligands from F, Cl, Br and I. Furthermore, a number of complexes are identified with very small Gibbs free energy values indicating the possible spin-crossover phenomenon between the bi-stable spin-states.
Nucleophilic Attack on Nitrogen in Tetrazines by Silyl-Enol Ethers
Authors: Schnell Simon , Schilling Mauro , Sklyaruk Jan , Linden Anthony , Luber Sandra , Gademann Karl
Published: October 2020

The nucleophilic addition to nitrogen in 3-monosubstituted s-tetrazines under mild conditions is reported, by using silyl-enol ethers as the nucleophiles and mediated by BF3. The preference for this azaphilic addition over the usually observed inverse electron demand Diels-Alder reactions was determined experimentally and evaluated theoretically. In this regard, the influence of the effect of BF3-coordination to s-tetrazines was investigated thoroughly. The substrate dependency of this unusual reaction was rationalized by determination of the activation barriers and on the basis of the activation strain model by employing density functional theory. Lastly, the decomposition of the unstable adducts was examined and an interesting rearrangement to a triazine derived structure was observed.
Fast Carbon Isotope Exchange of Carboxylic Acids Enabled by Organic Photoredox Catalysis
Authors: Kong Duanyang , Munch Maxime , Qiqige Qiqige , Cooze Christopher , Rotstein Benjamin , Lundgren Rylan
Published: October 2020

Carbazole/cyanobenzene photocatalysts promote the direct isotopic carboxylate exchange of C(sp3 )-acids with labelled CO2. Substrates that are not compatible with transition metal catalyzed degradation-reconstruction approaches or prone to thermally induced reversible decarboxylation undergo isotopic incorporation at room temperature in short reaction times. The radiolabelling of drug molecules and precursors with [11C]CO2 is demonstrated.
Chemoselective Union of Olefins, Organohalides and Redox-Active Esters Enables Regioselective Alkene Dialkylation
Authors: Yang Tao , Jiang Yi , Luo Yixin , Lan Yu , Koh Ming Joo
Published: October 2020

Multicomponent catalytic processes that can generate multiple C(sp3)-C(sp3) bonds in a single step under mild conditions,particularly if the catalysts and substrates are inexpensive, are highly sought-after in chemistry research for complex molecule synthesis. Here, we disclose an efficient Ni-catalysed reductive protocol that chemoselectively merges alkenyl amides with two differentaliphatic electrophiles. Starting materials are readily accessible from stable and abundant feedstock and products are furnished in up to >98:2 regioisomeric ratios. The present strategy eliminates the use of sensitive organometallic reagents, tolerates a wide array of complex functionalities and enables regiodivergent addition of two primary alkyl groups bearing similar electronic and steric attributes across aliphatic C=C bonds with exquisite control of site selectivity. Utility is underscored by the concise synthesis of bioactive compounds and post-reaction functionalizations leading to structurally diverse scaffolds. DFT studies revealed that the regiochemical outcome originates from the orthogonal reactivity and chemoselectivity profiles of in situ-generated organonickel species.
Reaction Condition Optimization for Non-Oxidative Conversion of Methane Using Artificial Intelligence
Authors: Kim Hyun Woo , Lee Sung Woo , Na Gyoung S. , Han Seung Ju , Kim Seok Ki , Shin Jung Ho , Chang Hyunju , Kim Yong Tae
Published: October 2020

Chemical reactions typically have numerous controllable factors that need to be optimized to yield the desired products. Although traditional experimental methods are limited to explore possible combinations of these factors, artificial intelligence (AI) can provide the optimal solution based on chemical reaction data. In this study, we optimize the non-oxidative conversion of methane to C2 compounds using AI, such as machine learning (ML) to predict experimental results and metaheuristics to optimize reaction conditions. A decision tree-based machine learning method can reasonably predict the reaction outcomes (CH4 conversion, C2 yield, and selectivities for C2 and coke) with an error of < 5%. Trained ML models are applied to maximize the C2 yield by optimizing the reaction parameters with metaheuristics. We can simultaneously enhance the C2 yield and suppress the coke formation by improving the multi-objective function for the optimization. We believe that our method will be helpful to optimize the chemical reaction conditions with multiple targets.
Half-Auxeticity and Anisotropic Transport in Pd Decorated Two-Dimensional Boron Sheets
Authors: Ma Fengxian , Jiao Yalong , Wu Weikang , Liu Ying , Yang Shengyuan A. , Heine Thomas
Published: October 2020

If one strains a material along a direction, most materials shrink normal to that direction. Similarly, if you compress the material, it will expand in the direction orthogonal to the pressure. Few materials, those of negative Poisson ratio, show the opposite behavior. Here, we show an unprecedented feature, a material that expands normal to the direction of force regardless if it is strained or compressed. Such behavior, called half-auxeticity, has been found for a borophene sheet stabilized by decorating Pd atoms. Herein, we explore Pd-decorated borophene, identify three stable phases of which one has this peculiar property of half auxeticity. After carefully analyzing stability, mechanical and electronic properties we explore the origin of this very uncommon behavior.
Implementation of the QUBE Force Field for High-Throughput Alchemical Free Energy Calculations
Authors: Nelson Lauren , Bariami Sofia , Ringrose Chris , Horton Joshua , Kurdekar Vadiraj , Mey Antonia , Michel Julien , Cole Daniel
Published: October 2020

The quantum mechanical bespoke (QUBE) force field approach has been developed to facilitate the automated derivation of potential energy function parameters for modelling protein-ligand binding. To date the approach has been validated in the context of Monte Carlo simulations of protein-ligand complexes. We describe here the implementation of the QUBE force field in the alchemical free energy calculation molecular dynamics simulation package SOMD. The implementation is validated by computing relative binding free energies for two congeneric series of non-nucleoside inhibitors of HIV-1 reverse transcriptase using QUBE and AMBER/GAFF force fields. The availability of QUBE in a modern simulation package that makes efficient use of GPU acceleration will greatly facilitate future high-throughput alchemical free energy calculation studies.
Real-time Characterization of Chemical Structure and Dynamics of Electrical Double Layer at Electrode-electrolyte Interfaces
Authors: Zhang Yanyan , Tang Jilin , Ni Zhigang , Zhao Yao , Jia Feifei , Luo Qun , Mao Lanqun , Zhu Zihua , Wang Fuyi
Published: October 2020

The chemisorption of species from supporting electrolytes on electrode surfaces is ubiquitous in electrochemical systems and affects the dynamics and mechanism of various electrochemical reactions. The understanding of chemical structure and property of the resulting electrical double layer is vital but limited. In this work, we operando probed the electrochemical interface between a gold electrode surface and a common supporting electrolyte, phosphate buffer, using our newly developed in situ liquid secondary ion mass spectrometry during dynamic potential scanning. We surprisingly found that on the positively charged gold electrode surface sodium cations coexisted within the inner Helmholtz layer to form ion pairs with the accumulated phosphate anions, resulting in a strong and dense adsorption phase which was further revealed to retard the electro-oxidation reaction of ascorbate. This finding addressed one major gap in the fundamental science of the electrode-electrolyte interface that where and how the cations exactly reside in the double layer to impose effects on electrochemical reactions, providing insights into engineering of better electrode-electrolyte interfaces in a wide range of fields such as electrochemical conversion and storage of energy, electrocatalysis, and electrodeposition.
Valorization of Pomegranate Peel Balls as Bioadsorbents of Dyes in Aqueous Media
Authors: Msaadi Radhia , Sassi Wafa , Hihn Jean-Yves , Ammar Salah , Chehimi Mohamed
Published: October 2020

Pomegranate peel balls were evaluated as bioadsorbents for removal of Methylene Blue (MB) dye, a model pollutant, from aqueous solutions. Adsorption levels off at 15.8 mg/g and the agrowaste-derived adsorbent can be recycled at least three times. The work conclusively shows that in countries where pomegranate is available, the waste generated by the fruit peel could be considered for future water filtration and environmental protection.
Synthesis And Comparative Evaluation Of Traditional Herbomineral Nanoceuticals For Their Haemopoietic Activity
Authors: Shebina P. Rasheed  , Shivashankar M
Published: October 2020

The traditional System of medicine comprises a wide variety of formulations for various ailments. It is essential to Standardize Ayurvedic drugs so that drugs having good quality can be used for better effect. Standardization is not only limited to the final preparation, but it also includes the materials used during the development and SOP adopted and the equipment used. The present study is an attempt to prepare anti anaemic herbomineral nanoceutical by two different processes, and to standardize and evaluate the haemopoietic effect of the prepared formulations and compare with a marketed formulation. Preparation was done based on Ayurveda Pharmacopoeia. Formulations were characterized by conventional methods and by AAS, XRD, EDAX, SEM, TGA, and IR.  The toxicity and anti-anaemic effectiveness are evaluated by using albino Wister rats and histopathology and cytotoxicity studies. Products have a crystalline nature (XRD). TGA shows the decomposition temp of ferric oxide. SEM EDAX revealed surface smoothness and nano to the micro size of particles. AAS shows that the elements are within the prescribed limits. The in-process Standardization shows the effectiveness of adjuvants. There is an increase of haemoglobin and body weight on day 75 for first preparation than the Second and were comparable to that of standard. No toxicity in all rats and indicated no renal and gastrointestinal toxicity.  The size, smoother surface, and the therapeutic effectiveness of the herbominerals prepared by the two methods can be attributed to the calcination steps and adjuvants. Thus, maybe dose reduction and rapid effect can be achieved.
Visual motor integration in children with and without reading disability
Authors: Ganapathy Sankar U  , Monisha R
Published: October 2020

Where there are few occupational therapists in regular practice, and an educational psychologist and special educators conducted the majority of the assessment procedure and evaluation of children with visual-motor integration (VMI). They consider assessing children with VMI as similar to the assessment of children with research instruments, and the availability of the trained occupational therapist was limited. VMI is generally expressed as the ability of the child to integrate visual perception input and to coordinate it with limb movements for the execution of motor activities in sequential order. A child with impaired VMI skills fails to execute motor- based activity. We evaluated the visual-motor integration (VMI) in children with and without reading disabilities (RDs) in the primary schools of Mudichur. Full Range Test of Visual-Motor Integration (FRTVMI) was used to evaluate the visual-motor integration among children. A total of 20 children recruited from primary schools in Mudichur. Every parent of the children gave the willingness to participate in the study; 10 children were already diagnosed as having RDs, whereas the remaining 10 children were age-matched typically developing children. The results indicated that children with reading disability scored poor on the FRTVMI than the typically developing age-matched peer-group children. The results support the impairment in visual-motor integration is strongly related to learning disabilities, and the therapist should educate teachers of primary schools to refer children with learning disabilities. However, there is a need for strong assessment among children’s to quantify their skills in reading and writing, and it is vital to diagnose children in the early years to avoid academic failures. Teachers were in need to be educated to refer children are who are suspected of being at risk for RDs in school settings.
Prevalence of root stumps of primary teeth in paediatric patients
Authors: Yuvashree C S  , Vignesh Ravindran  , Delphine Priscilla Antony S
Published: October 2020

The purpose of this study is to find negligence of early dental treatment. This research fulfils by providing insight on parents' care towards the child. The aim of our study is to find the prevalence of root stumps of primary teeth in pediatric patients. The current study was a comparative, descriptive and retrospective study which was performed under a university setting where all the data of patients with root stumps of primary teeth were collected by reviewing patients records and analysed the data of 86000 patients between June 2019 to March 2020. The collected data were tabulated; statistical analysis was done by SPSS – IBM. The study showed that out of 2360 extractions, 35 (1.5%)was found to be root stumps of primary teeth. The root stumps were more prevalent among four years of age (42.86%) with female predilection (81.25%) and the higher incidence with maxillary 2nd molars (11.4%). The prevalence of tooth loss was found to be high in children as well as the adults so dental professionals should utilize the various measures and protocols available in preventive dentistry to minimise the effects of tooth loss.
Spanish sparrow passer Hispaniolensis (Aves: Passeriformes) in Stavropol region (Russia)
Authors: Маловичко Любовь Васильевна , Зиновьев Андрей Валерьевич
Published: October 2020

В работе даётся анализ современного состояния популяции черногрудого воробья в Ставропольском крае, основанный на наблюдениях 2001-2018 гг. Приводятся данные по гнездовой биологии вида. Обсуждаются лимитирующие факторы.

Modern data of the Spanish sparrow population in the Stavropol Region (Russia) based on observations in 2001-2018 are analyzed. Nesting biology of the species in the Region is described. Limiting factors are discussed
Cruciata laevipes in ecosystems of Tver region
Authors: Нотов Александр Александрович , Нотов Валерий Александрович , Иванова Светлана Алексеевна , Зуева Людмила Викторовна , Мидоренко Дмитрий Адольфович
Published: October 2020

Проанализировано распространение на территории Тверской области Cruciata laevipes Opiz.Охарактеризована специфика местообитаний. Рассмотрены особенности биологии и экологии.

The distribution of Cruciata laevipes Opiz in Tver Region is analyzed. The specificity of its habitats is characterized. The features of biology and ecology are considered.
Incipient sympatric speciation in wild barley caused by geological-edaphic divergence
Authors: Li Kexin , Ren Xifeng , Song Xiaoying , Li Xiujuan , Zhou Yu , Harlev Eli , Sun Dongfa , Nevo Eviatar
Published: October 2020

Sympatric speciation (SS) has been contentious since the idea was suggested by Darwin. Here, we show in wild barley SS due to geologic and edaphic divergence in “Evolution Plateau,” Upper Galilee, Israel. Our whole genome resequencing data showed SS separating between the progenitor old Senonian chalk and abutting derivative young Pleistocene basalt wild barley populations. The basalt wild barley species unfolds larger effective population size, lower recombination rates, and larger genetic diversity. Both species populations show similar descending trend ∼200,000 yr ago associated with the last glacial maximum. Coalescent demography analysis indicates that SS was local,primary, in situ, and not due to asecondarycontact from ex situ allopatric population. Adaptive divergent putatively selected genes were identified in both populations. Remarkably, disease resistant genes were selected in the wet basalt population, and genes related to flowering time, leading to temporal reproductive isolation, were selected in the chalk population. The evidence substantiates adaptive ecological SS in wild barley, highlighting the genome landscape during SS with gene flow, due to geologic-edaphic divergence.
试论工匠精神培育与高校思想政治教育的有机融合
Authors: 颜 征兵
Published: October 2020

当前，整体社会的发展方向愈加趋向于专业化，在专业领域内较为推崇的工匠精神也被人们津津乐道。不仅如此，教育领域也开始推崇将工匠精神进一步融入高校思想政治教育工作当中，符合当今时代发展之下的教育发展要求。为了在今后的高校思想政治教育体系当中，更好地将思想政治教育与工匠精神培养相互结合，应该要基于工匠精神树立起高校思想政治教育体系，围绕其精神理念不断对教学方法和教学途径进行优化，还可以遵照工匠精神的标准来衡量高校政治教育教师团队的水平和素养，最大程度将工匠精神的培育贯穿于所塑造的整体校园文化氛围中。
民间游戏植入幼儿数学活动的探究
Authors: 周 屏
Published: October 2020

游戏是幼儿的天性，民族游戏是一种以当地传统文化为背景的游戏。把深受幼儿青睐的民间游戏植入枯燥、抽象的数学活动中去，不仅能引发幼儿对乡土生活、文化的关注和热爱，还能更好地激发幼儿参加数学活动的积极性，参与数学学习的热情，为幼儿后期数学学习奠定兴趣基础。民间游戏能让幼儿在传承民族文化的同时参与数学活动，使其真正做到在玩中学，在学中玩。
浅议如何在小学数学课堂中实现有效的课堂互动
Authors: 于 善香
Published: October 2020

随着新课改的深入，中国教育事业实现了一次又一次的突破。教师的素质在不断提高，教师的教学方法也在不断地发展与创新。在进行小学数学教学中，教师要重点强调师生之间的互动，使学生数学学习兴趣、数学成绩以及课堂听讲的态度都有所改善，提高学生数学学习能力。因此，师生互动已经成了小学生学习发展的关键，所以在课堂上教师应该以师生互动作为中心，实现师生良好关系的建立。论文就如何在小学数学课堂中有效地进行课堂互动，以吸引小学生的注意力，调动小学生的积极性，实现高效率教学的开展。
浅析在汉语教学中中国音乐如何向汉语学习者传播中国文化
Authors: 吴 媛馨
Published: October 2020

音乐是人与人沟通的桥梁，优美的旋律能拉近不同语言人群的关系。在全球化发展的今天，音乐文化成为国与国交流的途径之一。随着媒体设备的更新，在汉语教学过程中也有使用中国音乐传播中国文化的方式。论文探讨了在汉语教学过程中，中国音乐如何向汉语学习者传播中国文化。
现代计算机密码学的发展现状及前景探究
Authors: 郑 英君 , 冯 福天 , 方 超
Published: October 2020

伴随着互联网技术的不断发展，现代计算机密码学对于信息资源加密工作质量的影响非常重要。基于此，论文对现代计算机密码学的发展现状进行总结，同时以密码学的基本理论为基础探索计算机密码学的发展趋势，确保在现代计算机密码学发展与应用的过程中，发挥其巨大价值。
人才培养多样化下的教学计划管理模式研究与实践
Authors: 臧 红波
Published: October 2020

随着中国市场经济的发展，社会对人才的需求逐渐呈现多样化特点。因此，在高校人才培养中实现多样化的人才培养，促进教学计划管理模式的创新逐渐成为高校人才培养的重要发展趋势。论文主要对高校人才培养多样化下的教学计划管理模式进行研究和分析，旨在进一步提升高校人才培养的多样性，为社会经济发展输送更多综合性的高素质人才，促进社会经济的可持续性发展提供源源不断的动力支持。
“新工科”理念下应用型高校实践教学体系重构
Authors: 任 光辉 , 郑 树桐 , 赵 云 , 苏 杰
Published: October 2020

立足服务“交通强国”“民航强国”等国家战略，论文研究“新工科”理念对应用型高校人才培养模式的影响及改革方向。通过系统地阐述实践教学项目更新、课程体系构建、教学模式优化、平台建设及运行保障体系的完善，探索实践条件平台规模化建设后新工科专业实践教学体系的重构范式。
基于“双 +”情景模拟教学的秘书礼仪课程教学改革与实践——以中国宁夏大学新华学院为例
Authors: 尹 瑛
Published: October 2020

《秘书礼仪》是一门基于情景教学模式进行教学的实践课程，也是汉语言文秘方向的重要实训课程。新华学院《秘书礼仪》课程结合自身的教学实际，在整合学院教学资源的前提下探索出情景教学的新模式——“双 +”情景教学法，将课内情景与课外实践情景教学有机结合，从而使教学实践效果更为优质。
系统动力学视域下校园足球发展及其影响因素研究
Authors: 张 怿
Published: October 2020

随着中国经济的快速发展，国家越来越重视校园足球发展及其影响性因素。在系统动力学视域下，需要根据实际情况明确系统动力学原理，了解不同因素在校园足球发展中所起的作用，使实验更加符合学习者的学习需求。因此，论文主要针对系统动力学视域下校园足球发展及其影响因素进行简要分析并提出合理化建议。
理实一体化教学在《风力发电场建设》课程中的应用
Authors: 张 军治
Published: October 2020

中国风电产业及技术水平发展迅猛，需要职业教育为企业培养风电高素质、技能型人才。由于风电行业的特殊性，风电专业可借鉴的教学经验、教学方法及教学模式有限。论文依据学校风电专业开设《风力发电场建设》课程的实际教学情况，结合工作岗位需求，针对《风力发电场建设》课程的特点，采用理实一体化教学模式，对课程的教学内容、教学方法、教学手段、教学环境、考核评价等方法进行了一体化教学设计，以提高教学效率，培养学生的职业技能，满足社会对风电高素质、高技能型人才的需要。
小学三年级语文课外阅读对学生的影响
Authors: 袁 利民
Published: October 2020

对于小学阶段的语文教学工作来讲，主要目的是为了对学生的语言听说读写能力进行培养。因此，在当前新课程改革工作背景下，正是基于这一教学目的，在语文教学工作当中，对课外阅读教学工作进行了全面的普及以及强化，使学生能正确对语言文字进行理解和应用。论文针对小学三年级学生语文课外阅读工作的开展现状进行论述，并对提升语文课外阅读理解能力的培养措施进行分析。
民族地区师范院校教育硕士培养实践及探索——以中国新疆师范大学为例
Authors: 阿不来提 古丽米拉
Published: October 2020

教育硕士作为当今中国英语学科高层次师资的代表，已经成为推动当前基础英语教育改革顺利开展的重要的中坚力量。在中国专业学位教育深化改革的大背景下，重新优化和创新英语教育硕士的人才培养模式已经成为教育硕士培养的一项重要课题。
浅谈中职学生硬笔书法教育
Authors: 连 婉合
Published: October 2020

硬笔书法作为一门中职学生课业新加入的课程，笔者作为任课教师在这六七年的教学中颇有感想，以此提笔与诸师友交流。
“知行合一”视角下大学生诚信价值观教育研究
Authors: 郑 芳
Published: October 2020

大学生作为中国特色社会主义事业的接班人和建设者，具备较高的道德水平是最基本的要求。而高校是弘扬和培育诚信道德的重要基地，是社会诚信的辐射源，高校诚信价值观教育的最终目标在于培养大学生认知与行为一致的诚信素养。但是，当今大学生存在“知而不行”“行而不知”等现象，这就急需我们去了解道德教育中知行合一现状，并积极探索产生这种状况的原因，从而提出行之有效的对策措施，以构建科学合理的诚信道德体系。
数学建模教学对大学生计算机思维能力培养研究
Authors: 陈 传军 , 郑 石军 , 李 波
Published: October 2020

计算机在当今社会起到了越来越重要的作用，培养计算机能力的核心是计算机思维。论文从计算机思维定义、逻辑抽象能力、结构化思维能力等方面论述了数学建模教学对学生计算机思维能力的培养。
高中生出国留学现状与教育规划研究
Authors: 朱 希
Published: October 2020

随着中国经济水平不断提高，家长有条件为孩子提供更多样的学习资源，越来越多的家庭希望将自己的孩子送到其他国家感受不同的文化环境、接受不同的知识教育、提升孩子的综合竞争力。高中生已经成为中国出国留学的主要群体，如何让高中生尽快适应国外留学生活、做好教育规划工作是高中留学生和留学生家长需要面对的重要问题，论文针对留学生的教育规划问题进行研究。
新媒体时代高校大学生学生管理工作应如何开展
Authors: 曹 正金
Published: October 2020

对于高校的发展来讲，学生管理工作水平是体现高校教育教学工作水平的重要指标之一，所以在当前新时期发展背景下，应基于新时期发展特点来对当前的学生管理工作进行创新。当前各行业在其管理工作水平提升过程中，对新媒体技术的应用都是非常普遍的，而且也已经渐渐证实了新媒体技术的作用。因此，在当前高校学生管理工作中也应当借鉴新媒体时代背景下的相关先进理念以及技术对学生管理工作进行创新。论文针对当前新媒体时代背景下的高校学生管理工作创新途径以及内容进行论述。
Synthesis, Formulation, and Adjuvanticity of Monodesmosidic Saponins with Olenanolic Acid, Hederagenin and Gypsogenin Aglycones, and some C-28 Ester Derivatives
Authors: Greatrex BW , Daines Alison , Hook S , Lenz DH , McBurney W , Rades T , Rendle Phillip
Published: October 2020

© 2015 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. In an attempt to discover a new synthetic vaccine adjuvant, the glycosylation of hederagenin, gypsogenin, and oleanolic acid acceptors with di- and trisaccharide donors to generate a range of mimics of natural product QS-21 was carried out. The saponins were formulated with phosphatidylcholine and cholesterol, and the structures analyzed by transmission electron microscopy. 3-O-(Manp(1→3)Glcp)hederagenin was found to produce numerous ring-like micelles when formulated, while C-28 choline ester derivatives preferred self-assembly and did not interact with the liposomes. When alone and in the presence of cholesterol and phospholipid, the choline ester derivatives produced nanocrystalline rods or helical micelles. The effects of modifying sugar stereochemistry and the aglycone on the immunostimulatory effects of the saponins was then evaluated using the activation markers MHC class II and CD86 in murine bone marrow dendritic cells. The most active saponin, 3-O-(Manp(1→3)Glcp)hederagenin, was stimulatory at high concentrations in cell culture, but this did not translate to strong responses in vivo.
Shifting baselines and political expediency in New Zealand
Authors: Joy Michael , Canning AD
Published: October 2020

No description supplied
FUNERAL CEREMONIES AMONG THE LIVESTOCK TRIBES AND THEIR CHARACTERISTICS
Authors:   Termez State University of the Republic of Uzbekistan, Kushakov Safarali
Published: October 2020

In this article, we can learn about one of the greatest features of the tradition of human burials in the southern and bordering regions of Uzbekistan, and about its features in the monuments of the Bronze Age cattle-breeding tribes of Northern Bactria.At the same time, the emergence of early urban states in Central Asia, especially in ancient Bactria and Margiana, was considered
SOME ISSUES OF THE HISTORY OF SPIRITUAL AND CULTURAL LIFE OF THE PEOPLES OF CENTRAL ASIA IN THE XV-XVI CENTURIES
Authors:   Tashkent State Technical University of the Republic of Uzbekistan, Gulyamova Gulnora
Published: October 2020

The article reflects the Timurid era, marked by the extraordinary flowering of science,art and literature. The main purpose of the article is to identify the moral features of the religious environment of Babur's era and its influence on the formation and further development of the spiritual world of the young people
LEGAL AND SPIRITUAL FOUNDATIONS OF THE DEVELOPMENT OF PILGRIMAGE TOURISM IN UZBEKISTAN
Authors:   Chirchik State Pedagogical Institute in Tashkent region of the Republic of Uzbekistan, Nafasov Arslon
Published: October 2020

The article highlights the organizational, legal and spiritual foundations of the development of pilgrimage tourism along with other types of tourism in the years of independence of Uzbekistan. It outlines the measures implemented in the sphere of further development.
THE ETHIC COMPOSITION OF THE AND THEIR SOCIO-ECONOMIC LIFE IN THE ZARAFSHAN VALLEY(LATE 19TH AND EARLY 20TH AND CENTURIES)
Authors:   Tashkent State Agrarian University of the Republic of Uzbekistan, Ostonov Oybek
Published: October 2020

In this article, the ethnic composition of the population who settled in the Zarafshan valley at the end of the 19th and early 20th centuries was studied. Favorable natural and geographical and climatic condition of the valley Zarafshan for crafts and livestock wascaused to move and settle of many various ethnic groups and these ethnic groupsmaintained economic, cultural and trading relationships and they did their living by partial farming as permanently resident and they spoke in Turkic language and contribute to form ethno tropological substract of the local population.
FROM THE HISTORY OF URBANIZATION PROCESSES HAPPENING IN KHOREZMIN XVI -THE FIRST HALF OF THE XIX CENTURY
Authors:   Academy of Sciences of the Republic of Uzbekistan, Agzamova Gulchehra
Published: October 2020

The article is devoted to some questions of the history of urbanization processes that took place in Khorezm in the XVI -first half of the XIX century. It shows some features of the emergence of new cities, the crisis of individual centers and the place of statehood in the development of cities.
THE IMPORTANCE OF HISTORICAL SOURCES OF THE BUKHARA REGIONAL STATE ARCHIVE IN STUDYING THE HISTORY OF UZBEKISTAN
Authors:   Bukhara State University of the Republic of Uzbekistan, Murodova Dilrabo
Published: October 2020

The present article deals with the importance of the historical sources stored in the funds of the Bukhara Regional State Archive in the studying of the history of Uzbekistan
PECULIARITIES OF TRADITIONAL LIVESTOCK BREEDING IN KARAKALPAK PEOPLE OF FERGANA VALLEY(description and review of economic and cultural traditions)
Authors:   Andijan machinery institute of the Republic of Uzbekistan, Atakhanov Rafikjan
Published: October 2020

In this article Karakalpaks, one of the biggest ethnoses living in Fergana valley, their economy related to livestock breeding, its peculiarities are revealed. Also, the history of the settlement of Karakalpaks from the valley on the Sirdarya river, ethno integrational processes in traditional livestock breeding are analyzed in the article as well.
THE CENSUS AT THE END OF THE 19thCENTURY IN TURKESTAN:THE HISTORY, THE ANALYSIS, THE RESULTS
Authors:   National university of Uzbekistan named after M. Ulugbek, Gulamov Ilkhomjon
Published: October 2020

In this article is described the first official which was held the history of population census in the 1897 and its final results are are listed below sectionary area in the Turkistan coutry. The goals and objectives of this list of population, which led by the Russian empire, who led the event,and the questions included in the census program, were scientifically covered. In addition, the statistical data on the total number of local population residing in the Samarkand, Syrdarya and Fergana regions were analyzed from a historical point of view.
TRANSFORMATION OF TRADITIONAL JUGGESIN TURKESTAN ASSR
Authors:   Academy of Sciences of the Republic of Uzbekistan, Komolov Dilshod
Published: October 2020

In this article it is analyzed the policy of the soviet authorities directed to step by step abolishment of judges of kaziys and biys in the territory of Turkestan ASSR. Besides it is reviewed the process of the judge election of kaziys and biys and tial affairs, consideration order of appeals and cassations and the laws concerning this matter
DEVELOPMENT OF UZBEKISTAN-SOUTH KOREA RELATIONS (2000-2020)
Authors:   Andijan State University of the Republic of Uzbekistan, Nurmetova Fazilat
Published: October 2020

The article states that the Uzbek-South Korean economic relations have reached a new level, in particular, the Joint Statement of the Heads of State on the comprehensive deepening of the Strategic Partnership, the Memorandum of Cooperation between the Ministry of Employment and Labor and the Ministry of Human Resources, 2018-2020. Intergovernmental Agreement on Loans from the Fund for Economic Development and Cooperation and the Fund for Reconstruction and Development of Uzbekistan Export-Import Bank of Korea, an agreement on financial cooperation relations have been analyzed using scientific publications and Internet services.
SOME COMMENTS ON ENTREPRENEURSHIP IN UZBEKISTAN AND THE ROLE OF WOMEN IN IT
Authors:   Navoi state pedagogy of the Republic of Uzbekistan, Rakhmatova Nilufar
Published: October 2020

During the years of independence, the issue of women, their rights, employment, entrepreneurship, business involvement has become increasingly important. This, in turn, is important in providing employment and improving the welfare of the population. In particular, the creation of opportunities for women to openly demonstrate their abilities in health, education, culture, science, social projects, self-government within the community will not only strengthen the position of women in society, but also create conditions for them to show their potential.
CRITERIA FOR EVALUATING THE EFFICIENCY OF STATE YOUTH POLICY IN UZBEKISTAN
Authors:   National university of Uzbekistan, Abdunazarov Sobir
Published: October 2020

In this article, the author describes the criteria for evaluating the effectiveness of state youth policy in Uzbekistan, its problematic aspects, goals and priorities, indicators that determine the effectiveness of youth policy
LAND POLICY OF THE COLONIAL ADMINISTRATION IN TURKESTAN (1867-1900)
Authors:   Institute of History of the Republic of Uzbekistan, Bazarbaev Akmal
Published: October 2020

In this article, the author shows the views of the colonial administration on land relations in Turkestan in 1867-1900. The author also analyzes the process of developing regulations on land use in these years. This aspect of the issue serves as additional material for scientific research published to date.
SOME PROBLEMS ABOUT THE HISTORY OF THE DEVELOPMENT TRADE OF SPICES AND SPICERY
Authors:   Jizzakh State pedagogical institute named after Abdullah Kadiri of the Republic of Uzbekistan, Karimova Nargiza
Published: October 2020

This article provides interesting information about the history of trade, development and the exchange of cultures between countries in Asia, Africa and Europe. Also given are the types of spices ,the legends of “incense” and their use in cooking, medicine and other industries. Also determine the authenticity of spices, which is very relevant today. The historical facts are given that the trade in spices and spices has influenced the development of the history of culture of the countries of the world and plays important role in various fields of science and industries.
THE CONDITION OF THE ECOLOGICAL BALANCE OF THE FERGANA VALLEY IN THE YEARS OF INDEPENDENCE AND ITS INFLUENCE ON THE HEALTH OF THE POPULATION
Authors:   Namangan State University of the Republic of Uzbekistan, Norkuziev Dadahon
Published: October 2020

This article describes the ecological situation in the Ferghana Valley over the years of independence, its impact on public health, the high population density in the region, the negative impact of industrial enterprises on the environment, environmental degradation, and the impact of various diseases on public health
Characterization and Performance of Minimum Quantity Lubricants in Through-Tool Drilling
Authors: Patil Amla , Raval Jay , Bangma Tim , Edinbarough Immanuel , Tai Bruce , Stephenseon David , Suleiman Obeidat , Hung Wayne NP
Published: October 2020

This study characterized airborne microdroplet diameters and size distribution from two commercially available lubricants A and B for internal minimum quantity lubrication (MQL). The effects of air pressure, oil channel size, physical properties of lubricants on the resultant microdroplets and through-tool MQL drilling performance were studied. Airborne microdroplet diameters were highly sensitive to the coolant channel sizes and air pressure. Cluster method was used to divide microdroplets into smaller clusters for comparison. Experimental data show that the average airborne microdroplet of lubricant B was larger than that of lubricant A at different air pressures and channel sizes. The contact angle of lubricant A was at least 10° less than that of lubricant B when depositing on glass or aluminium. High-speed imaging showed the tendency of more viscous lubricant B sticking to the drill tip, and higher pressure and longer time was required to atomize this viscous oil. Built-up-edges were less significant when drilling A380 aluminium with lubricant A. Due to high machinability of A380 aluminium, variation of hole diameter and hole cylindricity were minimal when drilling with different lubricants. Insignificant improvement in hole quality was observed when drilling with excessive amount of MQL lubricants or high concentration of lubricant C in flood coolant.
Active ingredients for weed control of food and vegetable crops in northern Côte d’Ivoire
Authors:   1African Center of Excellence for Climate Change, Biodiversity and Sustainable Agriculture (CEA-CCBAD), Félix Houphouët-Boigny University,   2Botany Laboratory, UFR Biosciences, Félix Houphouët-Boigny University 22 BP 582 Abidjan 22, Côte d’Ivoire
Published: October 2020

Agriculture in the north of Côte d’Ivoire, like the rest of the country, is undergoing genuine development. This situation is leading producers to adopt new cultivation techniques, including the use of herbicides for weed control. Herbicides have advantages and disadvantages in their handling. Knowing how dangerous these products can be, identifying them would be advantageous, hence this study. The main objective of this study is to establish a list of herbicides used on vegetable and food crops in the study area. In the departments of Boundiali, Ferké, Korhogo, and Séguéla directed interviews were conducted with traders, producers, and firms. They focused on the active ingredients of the herbicides, the type, and the mode of use. At the end of the study, seventy-seven herbicides divided into twenty-two active ingredients were identified. Glyphosate was the most present followed by nicosulfuron. To conclude, it should be noted that herbicides are present in the habits of the producers in our study area. They still do not use the products according to the standards. These results will help improve the quality and sustainability of agriculture.
Forecast of Highway Subgrade Settlement Based on Improved BP Neural Network
Authors:   China Academy of Safety Science and Technology, Beijing, China
Published: October 2020

In order to improve the feasibility and accuracy of the roadbed settlement prediction model, the factor analysis method is combined with the BP neural network method, and an improved BP neural network roadbed settlement prediction model is proposed. Select example data to test the improved BP neural network roadbed settlement prediction model. The test results: The relative average error of the 10 sets of training samples’ predicted and actual roadbed settlements was 4.287%, and the roads of five predicted samples The relative error of subgrade settlement is 1.79%, 1.93%, 6.62%, 7.19%, 4.05%, all less than 10%, which proves that the improved BP neural network prediction model has good prediction accuracy.
MUHASEBE MESLEK ADAYI ÖĞRENCİLERİN STAJDAN BEKLENTİLERİ VE BU BEKLENTİLERİN GERÇEKLEŞME DURUMUNU TESPİT ETMEYE YÖNELİK BİR ARAŞTIRMA
Authors: BEKCİ İsmail , APALI Ali , KÖSE Eda
Published: October 2020

Araştırmanın amacı, üniversitelerde staj (işbaşı eğitimi) uygulamasının gerçekleştirildiği bölümlerden birisi olan Mehmet Akif Ersoy Üniversitesi Zeliha Tolunay Uygulamalı Teknoloji ve İşletmecilik Yüksekokulu, Muhasebe ve Finansal Yönetim Bölümünde öğrenim gören muhasebe meslek adayı öğrencilerin stajdan beklentilerinin belirlenmesi ve bu beklentileri gerçekleşme durumlarının araştırılmasıdır. Bu amaç doğrultusunda, Muhasebe ve Finansal Yönetim Bölümü öğrencilerinden 120 kişiye hem staj öncesi hem de staj sonrası anket uygulandığı için araştırma verileri, hem staj öncesi hem de staj sonrası ankete gönüllü olarak yanıt veren öğrencilerinden elde edilmiştir. Araştırma amacına uygun olarak oluşturulan hipotezler, 6 boyuta dönüştürülen soruların ortalamaları alınarak test edilmiştir. Araştırma verileri öncelikle Cronbach Alpha Testine tabi tutulmuştur. Hipotez testleri Paired Samples T Testi (Bağımlı İki Örnek t-Testi) ile sonuçlandırılmıştır. Araştırma sonucunda, oluşturulan hipotezden 5’i kabul edilmiş, 1’i ise red edilmiştir.
MESLEK YÜKSEKOKULU MUHASEBE VE VERGİ PROGRAMI ÖĞRENCİLERİNİN MUHASEBE MESLEK ETİĞİ ALGISI: AĞRI İBRAHİM ÇEÇEN ÜNİVERSİTESİ’NDE BİR ARAŞTIRMA
Authors: TEMELLİ Fatma
Published: October 2020

Her meslekte olduğu gibi muhasebecilik mesleğinde de meslek mensuplarının uymaları gereken etik kurallar söz konusudur. Muhasebe meslek mensupları mesleki faaliyetlerini gerçekleştirirken dürüst, tutarlı, doğru, tarafsız ve mesleki davranışlarına özen göstermek zorundadır. Muhasebe mesleği açısından etik; müşteriler, toplum ve diğer meslek mensupları ile olan ilişkilerde uyulması gereken kuralların yerine getirilmesidir. Muhasebe meslek etiği, muhasebe meslek mensuplarının bağımsızlığını, kendi kendilerini kontrol etmesini ve dürüstlüğünü ifade eder. Bu çalışmanın amacı, muhasebe eğitimi alan Meslek Yüksekokulu Muhasebe ve Vergi programı öğrencilerinin muhasebe meslek etiği algı düzeylerini tespit etmek ve meslek etiği algıları ile demografik özellikleri arasında anlamlı farklılıkların olup olmadığını araştırmaktır. Bu amaç doğrultusunda, Ağrı İbrahim Çeçen Üniversitesi Ağrı Meslek Yüksekokulu’nda 2018-2019 Bahar döneminde Muhasebe ve Vergi Programı’na kayıtlı birinci ve ikinci sınıf öğrencilerine anket uygulanarak araştırma verileri elde edilmiştir. Verilerin analiz edilmesinde SPSS 22 paket programı kullanılmıştır. Verilerin değerlendirilmesinde tanımlayıcı istatistiksel yöntemleri olarak frekans, ortalama, standart sapma kullanılmıştır. İki bağımsız grup arasında niceliksel sürekli verilerin karşılaştırılmasında t-testi, ikiden fazla bağımsız grup arasında niceliksel sürekli verilerin karşılaştırılmasında tek yönlü Anova testi kullanılmıştır. Anova testi sonrasında farklılıkları belirlemek üzere tamamlayıcı post-hoc analizi olarak Scheffe testi kullanılmıştır. Sonuç olarak; genel olarak öğrencilerin muhasebe meslek etiği algılamasının etki düzeyinin orta düzeyde olduğu tespit edilmiştir. Ayrıca, öğrencilerin meslek etiğine yönelik bazı algıları ile demografik özellikleri arasında anlamlı farklılıklar tespit edilmiştir.
EFFECTS OF JOINT PRODUCTION ON PRODUCTION COSTS: BRICK FACTORY SAMPLE
Authors: TEMEL Ergin , ERTAŞ Fatih
Published: October 2020

Akio Morita, president of Sony emphasized the necessity of joint production with his remarks "No company is an island. In a world where companies are in need of each other should consider ways to work with other firms, if they want to compete in the global market." In the national and international markets, companies that are party to the competition have joint ventures under different names in order to enter different markets, gain cost advantage, share risk and create synergy. One of common types of joint ventures is joint production.
Joint production is the production of one or few production processes in an establishment set up in joint with the competitors in the sector in order to reduce production costs. Since competitors carry out one or a few production processes jointly, joint production provides more reduction in production costs in comparison to individualized production costs, and this cost-reducing advantage should have a positive effect on any establishments. Our paper is aimed at examining the feasibility of joint production in brick factories to cut down on production costs and its effect on production costs of Erbaa brick factories in particular. Production processes in brick factories take place in four stages: raw material preparation, pressing, drying and baking. Results of the interviews with factory managers and technical staff, it was found that they could use the advantage of joint production in the raw material preparation stage. For the research, the production costs of the brick factory with 300 tones of tillage capacity per day and the raw material preparation plant with the tillage capacity of 3200 tons per day which can be used by 15 brick factories at different capacity levels were examined. As a result of the research, it is determined that production cost is 6.95 TRY/ ton in case of raw material preparation in individualized factory and production cost is 4.51 TRY / ton in case of joint production.