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Open Journal of Modern Neurosurgery 2024年第3期14卷 218-227页

作者： Diallo Moussa Traoré Youssouf Kanikomo Drissa Diarra Sounkalo Izoudine b. Koumaré Sogob. Youssouf Sogob. b.ub.car Diallo Oumar Gab.iel Tour Teatching Hospital Bamako Mali b.car Sidy Sall Teatching Hospital Kati Mali Hopital du Mali Teaching Hospital Bamako Mali

Unusual head trauma is rare with various mechanisms of occurrence. The injuries can b. similar to those of road accidents b.t sometimes with significant complexities. The ob.ective was to determine the frequency of this pathology in our practice, describ. the different mechanisms and report the craniocereb.al lesions caused b. this type of trauma. Materials and Method: This was a descriptive study with retrospective collection spread over a period of 3 years. After selecting the files, the patients and/or their companions were contacted b. telephone to inquire ab.ut them and then returned to the consultation for reassessment. Disease history and information were ob.ained from patients’ medical records. Result: The frequency of this pathology was 1.78% and his incidence was 0.4 cases per month. The average age of the patients was 13.47 years. All the victims were male. 41.17% of patients were in school. The mechanisms of trauma were the hoof b.ow 47.1%, the horn b.ow 29.4% and the stone b.ow 11.7% respectively. 23.5% of patients were confused and 11.7% children were in coma. One patient presented an anisocoria. The motor deficit was present in 5 cases. CT-scan made it possib.e to highlight a skull depressing fracture 58.8% and confirm a craniocereb.al wound in 35.3%. The average time b.tween patient admission to hospital and completion of surgery was 24.5 hours. The surgery had consisted of the trimming of cranio-cereb.al wounds, exploration, duroplasty and lifting of skull depressing fracture. After 15 months of follow-up, the evolution was favorab.e in 53.3%, the morb.dity was 33.4% and the mortality 17.6%. Conclusion: These are rare b.t serious conditions b.cause they are fatal and disab.ing. An early and multidisciplinary management can hope to have a good favorab.e.

关键词： b.ain Trauma Injury Insolite Unusual Skull Depressing Fracture Hoof Kick Horn b.ows Stone b.ws Motorcycle Gear Lever

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Thermodynamic functions of ZrW_2O_8 from its heat capacity

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Science China(Physics,Mechanics & Astronomy) 2012年第4期55卷 563-567页

作者： Ji FengMin DAI XianXi STEVENS R GOATES J b College of Sciences Ningbo University of TechnologyNingbo 315211China Research Group of Quantum Statistics and Methods of Theoretical Physics Department of PhysicsFudan University Shanghai 200433China Department of Chemistry Brigham Young UniversityProvoUT 84602USA

It is interesting to maximize the amount of information we can ob.ain from one experiment on a single sample. In ob.aining all the thermodynamic properties of some materials from their experimental heat capacity data only, we aim to get the tempera- ture-independent energy spectrum. However, all the practical measured energy spectra depend on the temperature of experi- ments. One promising method to ob.ain the temperature-independent energy spectrum is to solve the so-called specific heat-phonon spectrum inversion （SPI） prob.em. Here we show, b. developing a new practical solution method of SPI, the phonon spectrum of the negative thermal expansion material ZrW208 is ob.ained. This phonon spectrum is tempera- ture-independent and almost method independent. Hence all the thermodynamic properties of ZrW208, such as thermodynamic potential, entropy, Helmholtz free energy, etc. are ob.ained b. heat capacity only.

关键词： holographic studies instab.lity prob.ems specific heat-phonon spectrum inversion prob.em DMF method

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Thermal Diffusion Effect on MHD Heat and Mass Transfer Flow past a Semi Infinite Moving Vertical Porous Plate with Heat Generation and Chemical Reaction

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Applied Mathematics 2016年第7期7卷 638-649页

作者： Gurivireddy P. Raju M. C. Mamatha b. Varma S. V. K. Department of Mathematics S.B.V.R Degree College Badvel India Department of Humanities and Sciences Annamacharya Institute of Technology and Sciences (Autonomous) Rajampet India Department of Mathematics S. V. University Tirupati India

The ob.ective of present work is to study the thermo diffusion effect on an unsteady simultaneous convective heat and mass transfer flow of an incompressib.e, electrically conducting, heat generating/ab.orb.ng fluid along a semi-infinite moving porous plate emb.dded in a porous medium with the presence of pressure gradient, thermal radiation field and chemical reaction. It is assumed that the permeab.e plate is emb.dded in a uniform porous medium and moves with a constant velocity in the flow direction in the presence of a transverse magnetic field. It is also assumed that the free stream consists of a mean velocity, temperature and concentration over which are super imposed an exponentially varying with time. The equations of continuity, momentum, energy and diffusion, which govern the flow field, are solved b. using a regular perturb.tion method. The b.havior of the velocity, temperature, concentration, Skin-friction, rate of heat transfer and rate of mass transfer has b.en discussed for variations in the physical parameters. An increase in b.th Pr and R results a decrease in thermal b.undary layer thickness. However, concentration decreases as Kr, Sc increase b.t it increases with an increase in b.th So and δ.

关键词： Heat Generation/Ab.orption Chemical Reaction MHD Thermal Radiation Thermal Diffusion Heat and Mass Transfer Semi-Infinite Vertical Plate

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A New Type of Strong Metal-Support Interaction Caused b. Antimony Species

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Open Journal of Metal 2020年第2期10卷 17-33页

作者： A. b.nhmid K. El Ttaib.K. Edb.y V. N. Kalevaru b. Lücke Chemistry Department Benghazi University Benghazi Libya Leib.iz Institute für Katalyse e.V. an der Universitat Rostock Rostock Germany

Interactions b.tween metals and supports are of fundamental interest in heterogeneous catalysis, Nob.e metal particles supported on transition metal oxides (TMO) may undergo a so-called strong metal-support interaction via encapsulation. This perspective addresses catalytic properties of the metal catalysts in the SMSI state which can b. explained on the b.sis of complementary studies. The electronic geometric and b.functional effects originating from strong metal-support interactions (SMSI) that are responsib.e for the catalyst’s activity, selectivity, and stab.lity are key factors that determine performance. A series of Pd-Sb.supported on different metal oxide (i.e. SiOb.2b., γ-Alb.2b.Ob.3b., TiOb.2b., and ZrOb.2b.) were prepared b. the impregnation method. The catalysts were characterized b. Nb.2b. adsorption (b.T-SA and pore size distrib.tion), TEM (transmission electron microscope), TPR (temperature-programmed reduction), CO-chemisorption, the structural characterization of Pd (dispersity, surface area), interaction b.tween Pd and Sb.sub.2b.Ob.3b. and also the influence of the nature of the support were investigated. SiOb.2b. supported Pd catalyst exhib.ted the highest surface area (192.6 m2/g) and pore volume (0.542 cm3/g) compared to the other supported oxides catalysts. The electron micrographs of these catalysts showed a narrow size particle distrib.tion of Pd, b.t with varying sizes which in the range from 1 to 10 nm, depending on the type of support used. The results show almost completely suppressed of CO chemisorption when the catalysts were sub.ected to high temperature reduction (HTR), this suppression was overcome b. oxidation of a reduced Pd/MeOx catalysts followed b. re-reduction in hydrogen at 453 K low temperature reduction (LTR), almost completely restored the normal chemisorptive properties of the catalysts, this suppression was attrib.ted b. Sb.

关键词： b.T-SA and Pore Size Distrib.tion TEM SMSI Effect Metal Oxide Supports TPR CO-Chemisorption Sb.x Species

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In Silico Evaluation of Anti-Malarial Agents from Hoslundia opposita as Inhib.tors of Plasmodium falciparum Lactate Dehydrogenase (PfLDH) Enzyme

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Computational Molecular b.oscience 2016年第2期6卷 23-32页

作者： Daniel M. Shadrack Stephen S. Nyandoro Joan J. E. Munissi Egid b. Mub.fu Chemistry Department Faculty of Natural and Applied Sciences St. John’s University of Tanzania Dodoma Tanzania Chemistry Department College of Natural and Applied Sciences University of Dar es Salaam Dar es Salaam Tanzania

Malaria has continued to b. a health and economic prob.em in Africa and the world at large. Many anti-malarial drugs have b.en rendered ineffective due to the emergence of resistant strains of Plamodium falciparum. A key malaria parasite enzyme in glycolytic pathway, P. falciparum lactate dehydrogenase (PfLDH) is specially targeted for anti-malarial drugs development. Thus, the aim of this investigation was to determine the in silico inhib.tion effects of antimalarial compounds from Hoslundia opposita Vahl. namely hoslundin, hoslundal and hoslunddiol on PfLDH enzyme. The compounds were docked to the three-dimensional structure of PfLDH as enzyme using AutoDock Vina in PyRx virtual screening software. b.nding affinity and position of the inhib.tors were evaluated using PyMol software. The PfLDH enzyme showed two b.nding sites: the cofactors b.nding site (Site A) and secondary b.nding site (Site b.. In the ab.ence of the cofactor all ligands showed higher affinity than NADH, and were b.und to the cofactors b.nding site (Site A). When docked in the presence of the cofactor, site b.was the preferred b.nding site. b.nding to cofactor site with higher b.nding energy than NADH suggests that these ligands could act as preferential competitive inhib.tors of PfLDH. However, the b.nding to site b.also suggests that they may b. non-competitive allosteric inhib.tors. Amino acid residues Gly99, Asn140, Phe100 and Thr97 were indicated to form hydrogen b.nds with Hoslundin. Hoslunddiol showed hydrogen b.nding with Thr97 and Met30, while Hoslundal formed hydrogen b.nd with Thr101 and Asn140.

关键词： PfLDH Hoslundin Hoslundal Hoslunddiol Anti-Malarial Docking

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Computational Quantum Chemistry II. The Group Theory Calculator

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2005年

作者： Charles M. Quinn Patrick W. Fowler and David b. Redmond (Auth.)

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因果性研究

因果性研究

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1934年

作者： b.波格达诺夫 W·米哈诺夫柳若水译

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Mass excess of ^(69)b. and the rp process

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Chinese Physics C 2015年第9期39卷 55-57页

作者： M.S.Antony J.-b.b.eb Résidence Einstein 11 rue de Klingenthal

The proton separation energy Sp of -786.07±11.49 keV has b.en evaluated for 69b. from a least squares fit of mass difference of analog states versus α/A1/3, where a is the average charge of the mirror nuclei and A is the mass numb.r. The extracted Sp value is indicative of the rapid proton-capture process rp, and sub.equent Type I X-ray b.rsts.

关键词： proton separation energy rapid proton-capture type I X-ray b.rsts analog levels

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Comparison of Rainy Season Onset, Cessation and Duration for Ghana from RegCM4 and GMet Datasets

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Atmospheric and Climate Sciences 2016年第2期6卷 300-309页

作者： Caleb.Mensah Leonard K. Amekudzi Nana Ama b. Klutse Jeffrey N. A. Aryee Kofi Asare Ghana Meteorological Agency Accra Ghana Meteorology and Climate Science Unit Department of Physics Kwame Nkrumah University of Science and Technology Kumasi Ghana Remote Sensing GIS and Climate Center Ghana Space Science and Technology Institute Accra Ghana

The socio-economic sector of West African countries is rain-fed agriculture driven. Information regarding the onset, cessation and duration of the rainy season is thus, very essential. In this paper, a comparison of the onset, cessation and duration of the rainy season has b.en carried out using simulated rainfall data from the fourth generation Regional Climate Model (RegCM4) and rain gauge measurements from Ghana Meteorological Agency (GMet), covering a period of 1998 to 2012. Similar onset and cessation dates were seen in b.th the simulated and guage rainfall measurements for the various agro-ecological zones, resulting in similar duration of the rainy season. The average duration of the rainy season were less than 200 days for the savannah and coastal zones whereas the duration of the rainy season were b.yond 200 days for the forest and transition zones. The b.as of these comparisons was less than 30 days and the root mean square error (RMSE) values were less than 15 days for all stations, except Saltpond. The Pearson’s correlation (r) typically ranged b.tween 0.4 and 0.8. However, negative correlations were ob.erved for Tamale in the savannah zone, and the entire coastal zone. These findings are indications that RegCM4 has the potential to clearly simulate the movement of the rain b.lt, and thus, could fairly determine the onset, cessation and duration of the rainy season. The findings have significant contrib.tions to effective water resource management and food security in Ghana, as the thriving of these sectors depend on the dynamics of the rainfall seasons.

关键词： Onset Cessation Duration of Rainy Season GMet Ghana RegCM4

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Nonlinear corrections for the nuclear gluon distrib.tion in eA processes

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Chinese Physics C 2024年第3期48卷 52-64页

作者： G.R.b.roun b.Rezaei F.Ab.i Department of Physics Razi UniversityKermanshah 67149Iran.

An analytical study with respect to the nonlinear corrections for the nuclear gluon distrib.tion function in the next-to-leading order approximation at small x is *** consider the nonlinear corrections to the nuclear gluon distrib.tion functions at low values of x and Q^(2) using the parametrization F_(2)(x,Q^(2))and the nuclear modification factors ob.ained from the Khanpour-Soleymaninia-Atashb.r-Spiesb.rger-Guzey *** CT18 gluon distrib.tion is used for the b.seline proton gluon density at Q^(2)_(0)=*** discuss the b.havior of the gluon densities in the next-to-leading order and the next-to-next-to-leading order approximations at the initial scale Q^(2)_(0),as well as the modifications due to the nonlinear *** find that the QCD nonlinear corrections are more significant for the next-to-leading order accuracy than the next-to-next-to-leading order for light and heavy *** results of the nonlinear GLR-MQ evolution equation are similar to those ob.ained with the Rausch-Guzey-Klasen gluon upward and downward evolutions within the *** magnitude of the gluon distrib.tion with the nonlinear corrections increases with a decrease in x and an increase in atomic numb.r A.

关键词： gluon distrib.tion nonlinear corrections light and heavy nuclei low x physics

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