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Reply to “Is physical performance (in mice) increased by Veillonella atypica or decreased by Lactobacillus bulgaricus?”

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Journal of Sport and Health Science 2020年第3期9卷 201-202页

作者： Aleksandar d.kostic Section on Pathophysiology and Molecular Pharmacology Joslin Diabetes CenterBostonMA 02215USA department of Microbiology Harvard Medical SchoolBostonMA 02215USA

dear editor,In a recent longitudinal metagenomic study of the gut microbiome in elite athletes,1 we conducted multiple, repeated sampling from runners in the 2015 Boston Marathon as well as sedentary controls approximately 1 week prior to and 1 week after marathon day. We also analyzed an independent cohort of endurance athletes, including Olympic-caliber rowers。

关键词： elite editor Boston

A Spectrophotometric Study of Streptomycin Effect on the Clinical Urea determination

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Chinese Journal of Chemistry 2011年第1期29卷 135-142页

作者： Mitic, Snezana S. Miletic, Gordana Z. kostic, danijela A. Rasic, Ivana d. department of Chemistry Faculty of Natural Sciences and Mathematics University of Nis Visegradska 33 P. O. Box 224 18000 Nis Serbia

The results of studying inhibitory effect of streptomycin on the modified Berthelot reaction were presented in this paper and a new kinetic method for determining streptomycin in pharmaceutical preparations and human urine was developed on the basis of the obtained results. The rates of catalytic and catalytic-inhibitory reaction were monitored at 700 nm （t=25 ±0.1 ℃） using UV/vis spectrophotometer. By analyzing the spectra and experimental dependences of the catalytic and catalytic-inhibitory reaction rates on the reactant concentrations, it was noticed that streptomycin attacked nitroprusside and hypochlorite causing the inhibition of the production of 2,2＇-dicarboxylindophenol. According to this effect, an analytical decrease for determination of urea by modified Berthelot reaction appeared in the presence of small amounts of streptomycin. Beer＇s law was obeyed in the interval of streptomycin sulfate concentration from 18.2 to 182 μg·mL^-1. The detection limit calculated by two methods was obtained at 11.75 μg·mL^-1 and 8.54 μg·mL^-1. The relative standard deviation of 0.55%--8.83% and the recovery of 109.10% were determined. The obtained results were validated using the referent HPLC method.

关键词： kinetics modified Berthelot reaction antibiotics inhibitors UV/vis spectrophotometry pharmaceuti-cal product human urine urea enzyme HPLC

On Abstract Third-Order differential Equation and Its Applications

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Acta Mathematica Sinica,English Series 2023年第3期39卷 399-411页

作者： Belkacem CHAOUCHI Lakhdar BENAISSA Marko kostic department of Mathematics Faculty of Science and TechnologyUniversity of Khemis MilianaKhemis MilianaAlgeria department of Mathematics Faculty of ScienceUniversity of AlgiersAlgeria Faculty of Technical Sciences University of Novi SadTrg D.Obradovica 621125 Novi SadSerbia

In this paper,we consider an abstract third-order differential equation and deduce some results on the maximal regularity of its strict *** assume that the inhomogeneity appearing in the right-hand term of this equation belongs to some anistropic Holder *** illustrate our results by a BVP involving a 3d Laplacian posed in a cusp domain of R^(4).

关键词： Abstract third-order differential equation cusp domain strict solution

High Power Laser Powder deposition Repair of AISI 4340 Steel in Aircraft Applications

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Journal of Iron and Steel Research International 2011年第S1期18卷 447-451页

作者： Mohammed Reza d Janardhana Madabhushi Brandt milan Clark Graham School of Aerospace Mechanicaland Manufacturing EngineeringRMIT UniversityBundoora 3083VictoriaAustralia Aircraft Structural Integrity Section Directorate General Technical AirworthinessRAAFLaverton 3027VictoriaAustralia

High power laser powder deposition (LPd) has been used to investigate the potential of repairing damaged aero-grade high strength *** analysis was performed to analyze the integrity of the clad layer.A 4kW fiber laser was used to deposit two separate alloys (AISI 4340 and AISI 420 stainless steel) on an AISI 4340 steel substrate and metallurgical analysis was performed to analyze the integrity of the clad *** microcracks was observed on the clads,but porosity and high dilution was observed on most ***,microstructural analysis showed a crack and porosity free clad layer with low dilution can be achieved for some laser conditions.

关键词： laser powder deposition high strength steel fiber laser microstructure hardness

Case of rectal angioleiomyoma in a female patient

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World Journal of Gastroenterology 2013年第13期19卷 2114-2117页

作者： Goran Z Stanojevi dragan S Mihailovi Milica d Nestorovi milan d Radojkovi milan M Jovanovi Miroslav P Stojanovi Branko B Brankovi General Surgery Clinic Ni Clinical CentreFaculty of MedicineUniversity of Ni18000 NiSerbia Institute of Pathology NiClinical CentreFaculty of MedicineUniversity of Ni18000 NiSerbia

Angioleiomyoma represents a benign stromal tumor, which usually occurs in the subcutaneous tissue of the extremities, although its occurrence in the gastrointestinal tract is very rare. A case of rectal angioleiomyoma in a 40 year-old female patient is described here. Six months earlier, the patient suffered from periodical prolapse of an oval tumor from the anus, along with difficulties in bowel movement. A transanal extirpation of the tumor was performed. This is the first reported case in the English literature of a patient presenting with prolapsed angioleiomyoma of the rectum. during the immediate postoperative period, as well as 6 mo later, the patient had an unremarkable postoperative recovery.

关键词： Prolapsed tumor Angioleiomyoma Rectum Leiomyoma

Primary colorectal lymphoma:An overview

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World Journal of Gastrointestinal Oncology 2011年第1期3卷 14-18页

作者： Goran Z Stanojevic Milica d Nestorovic Branko R Brankovic Miroslav P Stojanovic milan M Jovanovic milan d Radojkovic Clinic for General Surgery Clinical Center NisBul Zorana Djindjica 4818000 NisSerbia

Lymphomas represent common hematological malignancies with increasing incidence in recent *** major site of extranodal non-Hodgkin lymphoma is the gastrointestinal *** of the large intestine is rare in comparison to the stomach or small *** disease appears later in life,predominantly in the male *** are nonspecific,requiring a high index of suspicion in order to establish the *** treatment varies from chemotherapy alone to multimodal therapies combining surgery,chemotherapy and *** small number of patients with various histological subtypes and different stage at presentation results in unclear protocol for the treatment of primary colorectal *** purpose of this paper is to review current data on primary lymphoma of the colon and rectum while analyzing reported case series and published material on the subject.

关键词： Lymphoma non-Hodgkin Extranodal lympho-ma Large intestine Colorectal surgery Chemotherapy

Effect of yttrium on photosynthesis and water relations in young maize plants

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Journal of Rare Earths 2014年第4期32卷 371-378页

作者： Ivana Maksimovi Rudolf Kastori Marina Putnik-deli milan Boriev Faculty of Agriculture University of Novi Sad department of Biology and Ecology Faculty of SciencesUniversity of Novi Sad

despite an increase in spectrum of industrial applications of yttrium （Y） and the fact that it is widely present in the soils and plants, some of which are agronomically important crops, its effects on plant growth and metabolism are still obscure. Therefore, the aim of this work was to examine the effect of different concentrations of Y on its accumulation and distribution, photosynthetic responses, water relations, free proline concentration and growth of young maize plants. The experiment was done with maize （Zea mays L., hybrid NS-640）, in water cultures, under semi-controlled conditions of a greenhouse. Plants were supplied with half-strength complete Hoagland nutrient solution, to which was added either 0 （control）, 10-5, 10-4 or 10-3 mol/L Y, in the form of Y（NO）3·5H2O. Each variant was set in thirteen replications, with six plants in each replication. Plants were grown for 21 d and they were at the stage of 3 and 4 leaves when they were analyzed. The presence of Y reduced maize growth and photosynthetic performance. dimensions of stomata significantly decreased while their density significantly increased on both adaxial and abaxial epidermis. Plant height, root length, total leaf area and dry mass also declined. Concentration of photosynthetic pigments （chl a and b and carotenoids） and free proline decreased. Photosynthesis and transpiration were impaired in the presence of Y-their intensities were also reduced, and the same stands for stomatal conductance of water vapor, photosynthetic water use efficiency （WUE） and water content. Although the highest concentration of Y was found in maize roots in each treatment, Y concentration in the second leaf and shoot also significantly increased with an increase in Y concentration in the nutrient solution. Albeit Y concentration was much higher in roots than in shoots, shoot metabolism and growth were much more disrupted. The results demonstrated that young maize plants accumulated significant amount of Y and that th

关键词： yttrium maize photosynthesis water use efficiency rare earths

determination of frequencies of oscillations of cloud cavitation on a 2-d hydrofoil from high-speed camera observations

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Journal of Hydrodynamics 2016年第3期28卷 369-378页

作者： Patrik ZIMA Tomas FURST milan SEdLAR Martin KOMAREK Rostislav HUZLIK Institute of Thermomechanics of the CAS v.v.i.PragueCzech RepublicE-mail:zimap@it.cas.cz Faculty of Science Palacky University in OlomoucOlomoucCzech Republic Centre of Hydraulic Research LutinCzech Republic Faculty of Electrical Engineering and Communication Brno University of TechnologyBrnoCzech Republic

A method is presented to determine significant frequencies of oscillations of cavitation structures from high-speed camera recordings of a flow around a 2-d hydrofoil. The top view of the suction side of an NACA 2412 hydrofoil is studied in a transparent test section of a cavitation tunnel for selected cloud cavitation regimes with strong oscillations induced by the leading-edge cavity shedding. The ability of the method to accurately determine the dominant oscillation frequencies is confirmed by pressure measure- ments. The method can resolve subtle flow characteristics that are not visible to the naked eye. The method can be used for non- invasive experimental studies of oscillations in cavitating flows with adequate visual access when pressure measurements are not available or when such measurements would disturb the flow.

关键词： unsteady cavitation oscillation frequency high-speed camera observation

Resource requirements of an edge-based digital twin service:an experimental study

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Virtual Reality & Intelligent Hardware 2022年第6期4卷 506-520页

作者： Federico MUNGARI milan GROSHEV Carla Fabiana CHIASSERINI department of Electronics and Telecommunications Politecnico di TorinoTurin 10129Italy departamento de Ingenieria Telematica Universidad Carlos III de MadridMadrid 28911Spain

digital Twin(dT)is a pivotal application under the industrial digital transformation envisaged by the fourth industrial revolution(Industry 4.0).dT defines intelligent and real-time faithful reflections of physical entities such as industrial robots,thus allowing their remote *** on the latest advances in Information and Communication Technologies(ICT),namely Network Function Virtualization(NFV)and Edge-computing,dT can be deployed as an on-demand service in the factories close proximity and offered leveraging radio access ***,with the purpose of achieving the well-known scalability,flexibility,availability and performance guarantees benefits foreseen by the latest ICT,it is steadily required to experimentally profile and assess dT as a Service(dTaaS)***,the dependencies between the resources claimed by the service and the relative demand and work loads require to be *** this work,an Edge-based digital Twin solution for remote control of robotic arms is deployed in an experimental testbed where,in compliance with the NFV paradigm,the service has been segmented in virtual network *** research has primarily the objective to evaluate the entanglement among overall service performance and VNFs resource requirements,and the number of robots consuming the service *** profiles show the most critical dT features to be the inverse kinematics and trajectory ***,the same analysis has been carried out as a function of the industrial processes,namely based on the commands imposed on the robots,and particularly of their ion-level,resulting in a novel trade-off between computing and time resources requirements and trajectory *** derived results provide crucial insights for the design of network service scaling and resource orchestration fra-meworks dealing with dTaaS ***,we empirically prove LTE shortage to accommodate the minimum dT latency requirements.

关键词： digital twin Edge NFV Testbed Performance evaluation