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In situ characterization of particle formation in spray flame synthesis using wide-angle light scattering

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Particuology 2024年第3期86卷 304-312页

作者： Simon Aβmann Franz J.t.Huber Stefan Will Lehrstuhl für technische thermodynamik(Ltt) Friedrich-Alexander-Universitat Erlangen-Nürnberg(FAU)Erlangen91058Germany Erlangen Graduate Schoolin Advanced Optical technologies(SAOt) Friedrich-Alexander-Universitat Erlangen-Nurnberg(FAU)Erlangen91052Germany Competence Unit Engineering of Advanced Materials(EAM) Friedrich-Alexander-Universitat Erlangen-Nürnberg(FAU)Erlangen91052Germany

Wide-angle light scattering(WALS)was used for in situ measurements of droplet and nanoparticle size distributions during the synthesis of titania and iron oxide particles from liquid precursor solutions in the standardized SpraySyn burner for spray flame *** was synthesized from titanium tetraisopropoxide(ttIP)and iron oxide from iron(II)nitrate nonahydrate(INN)using ethanol(EtOH)as *** images were taken at heights up to 120 mm above the burner surface and classified into droplet and particle *** size distributions were derived from a sequential analysis of scattering data containing the oscillating Mie pattern,the lognormal size distribution parameters for spherical and fractal particle fractions from a multivariate approach on averaged particle scattering *** results show that the precursor addition leads to altered evaporation behavior and even droplet disruption probably induced by puffing or micro-explosions compared to pure *** the case of ttIP(a hygroscopic alkoxide),the synthesis of a large fraction of spheres was observed,while the nitrate INN leads to the formation of mostly fractal aggregates.

关键词： Spray flame synthesis Metal oxide particles Elastic light scattering Droplet size distribution Nanoparticle morphology Particle size distribution

Evaluation of Functional and Radiological Outcome of Arthroscopic-Assisted Anatomical Coracoclavicular (CC) and Acromioclavicular (AC) Ligament Reconstruction in Chronic AC Joint Dislocation

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Journal of Biosciences and Medicines 2024年第3期12卷 223-237页

作者： Muhammad Hafiz Daud Lim Wee Cheong Ang Xi Yuan Che Wan Mohd Shaiful Nizam Siti Hawa tahir Arthroscopy Sports Injury Unit Orthopedic Department Hospital Kuala Lumpur Kuala Lumpur Malaysia

Introduction: Acromioclavicular (AC) joint dislocation is a common shoulder injury, comprising 9% - 12% of shoulder girdle injuries. Optimal management remains challenging, with treatment decisions guided by the Rockwood classification system. Controversies surround grade III injuries, necessitating further classification. Non-operative treatment has shown favorable outcomes, while surgical interventions vary. Anatomical coracoclavicular reconstruction (ACCR) has demonstrated biomechanical advantages over traditional methods. Arthroscopic techniques offer advantages, minimizing deltoid detachment and allowing concurrent pathology identification. this study evaluates the outcomes of arthroscopic-assisted ACCR in chronic AC joint dislocation. Surgical technique: Arthroscopic-assisted ACCR involves meticulous portal placement, tendon graft harvesting, diagnostic arthroscopy, and coracoid exposure. the clavicle tunnels were made to mimic the conoid and trapezoid ligament positions, using Fibretape#2 loop and Dog Bone Button for correct placement against the coracoid base, and passing the semitendinosus graft through to reconstruct the conoid ligament, reduction done and graft follow through for anatomical reconstruction. Methods: A retrospective cohort study at Hospital Kuala Lumpur analyzed 35 patients undergoing arthroscopic-assisted ACCR for Rockwood grade III - V AC joint dislocations. Inclusion criteria encompassed trauma ≥ 3 weeks prior, no prior shoulder injuries, and ≥12-month follow-up. Functional and radiological assessments utilized ASES scores and coracoclavicular distances, respectively. Statistical analysis employed descriptive statistics and logistic regression. Results: the mean age was 38.9 years (SD 11.26), and 34 of 35 patients were male. Grade IV injuries were predominant (37.1%). Waiting time for surgery averaged 234.9 days. Functional improvement was substantial postoperatively (ASES: 55.5 to 88.9). Radiological outcomes demonstrated reduced coraco

关键词： Arthroscopic-Assisted Anatomical Coracoclavicular and Acromioclavicular Ligament Reconstruction (AACR) Chronic Acromioclavicular Dislocation ASES Score Rockwood Classification

EVOLUtION AND INtERACtION OFδ-WAVES IN tHE ZERO-PRESSURE GAS DYNAMICS SYStEM

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Acta Mathematica Scientia 2024年第5期44卷 1801-1836页

作者： Abhishek DAS K.t.JOSEPH Centre for Data Science Institute of Technical Education and Research(ITER)Siksha‘O’Anusandhan(Deemed to be University)BhubaneswarOdisha751030India Centre for Applicable Mathematics Tata Institute of Fundamental ResearchSharada NagarBangalore560065KarnatakaIndia

Evolution and interaction of plane waves of the multidimensional zero-pressure gas dynamics system leads to the study of the corresponding one dimensional *** this paper,we study the initial value problem for one dimensional zero-pressure gas dynamics *** the first equation is the Burgers equation and the second one is the continuity *** consider the solution with initial data in the space of bounded Borel *** we prove a general existence result in the algebra of generalized functions of *** we study in detail special solutions withδ-measures as initial *** study interaction of waves originating from initial data concentrated on two point sources and interaction with classical shock/rarefaction *** gives an understanding of plane-wave interactions in the multidimensional *** use the vanishing viscosity method in our analysis as this gives the physical solution.

关键词： zero-pressure gas dynamics delta-waves interaction of waves

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Unsteady MHD Casson Nanofluid Flow Past an Exponentially Accelerated Vertical Plate:An Analytical Strategy

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Computer Modeling in Engineering & Sciences 2024年第7期140卷 431-460页

作者： t.Aghalya R.tamizharasi Department of Mathematics School of Advanced SciencesVellore Institute of TechnologyVelloreTamilnadu632014India

In this study,the characteristics of heat transfer on an unsteady magnetohydrodynamic(MHD)Casson nanofluid over an exponentially accelerated vertical porous plate with rotating effects were *** flow was driven by the combined effects of the magnetic field,heat radiation,heat source/sink and chemical *** oxide(CuO)and titanium oxide(tiO2)are acknowledged as nanoparticle *** nondimensional governing equations were subjected to the Laplace transformation technique to derive closed-form *** representations are provided to analyze how changes in physical parameters,such as the magnetic field,heat radiation,heat source/sink and chemical reaction,affect the velocity,temperature and concentration *** computed values of skin friction,heat and mass transfer rates at the surface were tabulated for various sets of input *** is perceived that there is a drop in temperature due to the rise in the heat source/sink and the Prandtl *** should be noted that a boost in the thermal radiation parameter prompts an increase in *** increase in the Prandtl number,heat source/sink parameter,time and a decrease in the thermal radiation parameter result in an increase in theNusselt *** computed values of the skin friction,heat andmass transfer rates at the surface were tabulated for various values of the flow *** present results were compared with those of previously published studies andwere found to be in excellent *** research has practical applications in areas such as drug delivery,thermal medicine and cancer treatment.

关键词： thermal radiation radiative flux nanofluid copper oxide titanium oxide accelerated plate

Eliciting CD4-mimicking broadly neutralizing antibodies:new avenues towards the rational design of an HIV vaccine

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Signal transduction and targeted therapy 2024年第3期9卷 836-838页

作者： Frauke Muecksch Oliver t.Fackler Department of Infectious Diseases Heidelberg UniversityMedical Faculty HeidelbergVirologyCenter for Integrative Infectious Disease Research(CIID)HeidelbergGermany Chica and Heinz Schaller(CHS)Research Group Department of Infectious DiseasesVirologyUniversity Hospital HeidelbergHeidelbergGermany Department of Infectious Diseases Heidelberg UniversityMedical Faculty HeidelbergIntegrative VirologyCenter for Integrative Infectious Disease Research(CIID)HeidelbergGermany German Centre for Infection Research(DZIF) Partner Site HeidelbergHeidelbergGermany

In a study recently published in Cell,Saunders et *** that a new anti-HIV vaccine triggers antibody responses resembling CD4-binding site broadly neutralizing antibody precursors in rhesus macaques.1 this study provid... 详细信息

关键词： al. vaccine rational

Recent Advances in Catalytic Carbonylation Reactions in Alternative Reaction Media

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Chinese Journal of Chemistry 2024年第4期42卷 406-429页

作者： Csaba Árvai László t.Mika Department of Chemical and Environmental Process Engineering Faculty of Chemical Technology and BiotechnologyBudapest University of Technology and EconomicsMűegyetem rkp.3H-1111 BudapestHungary

Since the discovery of the hydroformylation(oxo-synthesis or Roelen reaction)and the Reppe-reaction,the transition metal-catalyzed carbonylation reactions,providing versatile,facile,and even atom-economic methods for the selective incorporation of C=O functionality to various skeletons,have gained tremendous importance in synthetic organic chemistry from laboratories to industrial *** carbonylation of carbon-carbon multiple bonds,aromatic halides,triflates,etc.,in the presence of various nucleophiles has led the way to produce aldehydes,carboxylic acids,esters,amides,etc.,in the fine chemical ***,these protocols usually proceed in conventional,fossil-based,and usually toxic reaction ***,several attempts have been directed to developing efficient carbonylation methods in alternative,less harmful,non-fossil-based and even in renewable reaction *** this review,we overview the recent applications of alternative solvents such as water,biomass-based alcohols,γ-valerolactone(GVL),2-methyltetrahydrofuran(2-MetHF),ionic liquids(ILs),deep eutectic solvents(DES),alkyl levulinates,limonene,α-pinene,and dimethyl carbonate as well as fluorous media to improve efficiency,safety and environmentally benign nature of carbonylation protocols.

关键词： Carbonylation Catalysis Solvents Green chemistry Carbon monoxide transition metals Homogeneous catalysis Palladium

奶牛乳房健康基因检测芯片在中国荷斯坦牛及巴基斯坦本地奶牛群中的应用研究

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畜牧兽医学报 2024年第10期 4489-4499页

作者：赖婉仪陶欣月杨庚新余文莉李树静 tahir Usman 俞英中国农业大学动物科学技术学院石家庄天泉良种奶牛有限公司阿卜杜勒.瓦利汗大学兽医与畜牧学院

旨在筛选与奶牛乳房健康相关的SNP位点或组合，提升奶牛乳房健康水平，同时促进“一带一路”国家的奶牛产业健康发展。本研究基于1 097头中国荷斯坦牛、161头巴基斯坦荷斯坦牛的尾静脉血及116头Achai牛、104头辛地红牛的尾根毛囊，提取... 详细信息

旨在筛选与奶牛乳房健康相关的SNP位点或组合，提升奶牛乳房健康水平，同时促进“一带一路”国家的奶牛产业健康发展。本研究基于1 097头中国荷斯坦牛、161头巴基斯坦荷斯坦牛的尾静脉血及116头Achai牛、104头辛地红牛的尾根毛囊，提取基因组DNA,使用奶牛乳房健康分子检测芯片(Chinese Cow′s SNPs Chip-Ⅰ, CCSC-Ⅰ)获得基因型，结合相应DHI数据报告中的乳房健康指标——体细胞数(somatic cell count, SCC)及体细胞评分(somatic cell score, SCS),通过单个SNP和成对SNP关联分析，鉴定有意义的SNP位点或组合。单位点关联分析结果显示，SNP3、6、8、11、19、20在中国荷斯坦牛群体中为显著位点(PtRAPPC9和PtK2基因表现出潜在的乳房炎抗性；而在巴基斯坦本地奶牛中，CD4、DGAt1和tRAPPC9基因则表现出显著的抗性特征。这些发现为未来的精准选育提供了有力的科学依据。

关键词：中国荷斯坦牛巴基斯坦荷斯坦牛巴基斯坦本地奶牛奶牛乳房炎单核苷酸多态性

Plant phosphate nutrition:sensing the stress

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Stress Biology 2022年第1期2卷 496-509页

作者： Viswanathan Satheesh ayesha tahir Jinkai Li Mingguang Lei Shanghai Center for Plant Stress Biology CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesShanghai 201602China Department of Biosciences COMSATS University IslamabadPark RoadIslamabadPakistan University of Chinese Academy of Sciences Beijing 100049China

Phosphorus(P)is obtained by plants as phosphate(Pi)from the soil and low Pi levels affects plant growth and *** to low Pi condition entails sensing internal and external Pi levels and translating those signals to molecular and morphophysiological changes in the *** this review,we present findings related to local and systemin Pi sensing with focus the molecular mechanisms behind root system architectural changes and the impact of hormones and epigenetic mechanisms affecting those *** also present some of the recent advances in the Pi sensing and signaling mechanisms focusing on inositol pyrophosphate InsP8 and its interaction with SPX domain proteins to regulate the activity of the central regulator of the Pi starvation response,PHR.

关键词： Phosphate signaling Root system architecture Inositol pyrophosphates InsP8 SPX domain Plant Human

RARRES2's impact on lipid metabolism in triplenegative breast cancer:a pathway to brain metastasis

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Military Medical Research 2024年第2期11卷 311-312页

作者： Quazi t.H.Shubhra Institute of Chemistry University of Silesia in Katowice41‑500 ChorzowPoland Department of Neurosurgery Renmin Hospital of Wuhan UniversityWuhan 430060China

Breast cancer brain metastasis(BCBrM)is a crucial and hard area of research which guarantees an urgent need to understand the underlying molecular mechanisms.A recent study by Li et al.[1]published in Military Medical Research investigated the role of retinoic acid receptor responder 2(RARRES2)in regulating lipid metabolism in BCBrM,highlighting the clinical relevance of alterations in lipid metabolites,such as phosphatidylcholine(PC)and triacylglycerols(tAGs),by RARRES2 through the modulation of phosphatase and tensin homologue(PtEN)-mammalian target of rapamycin(mtOR)-sterol regulatory element-binding protein 1(SREBP1)signaling *** commentary aims to elaborate on the key findings and their relevance to the field.

关键词： Retinoic acid receptor responder 2(RARRES2) Lipid metabolism Cancer PtEN-mtOR-SREBP1 signaling Metabolic reprogramming Brain metastasis

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