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Anthropological examination in burned body:a retrospective identification case

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Forensic Sciences Research 2022年第4期7卷 633-636页

作者： Marcos Paulo Salles Machado andrei de Souza Santos Gabriela Graça Luciana Lima Ricardo Campos Barcellos Civil Police of Rio de Janeiro State Afranio Peixoto Medico-legal InstituteRio de JaneiroBrazil Anthropology Department National MuseumFederal University of Rio de JaneiroRio de JaneiroBrazil

It is a well-established fact that forensic anthropology has been extremely helpful in identifying thermally altered human remains,especially in recent *** the improvement of new analytical techniques,the identification success rate has also been *** the help of statistical analysis,combined with analytical anthropological methods,the Forensic Anthropology Service of the Afranio Peixoto Medico-Legal Institute succeeded in identifying a charred body,with a margin of error of approximately 1:500 million to be obtained.

关键词： Forensic sciences forensic anthropology identification statistical analysis

Contactless Monitoring of the Diameter-Dependent Conductivity of GaAs Nanowires

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Nano Research 2010年第10期3卷 706-713页

作者： Fauzia Jabeen Silvia Rubini Faustino Martelli Alfonso Franciosi andrei Kolmakov Luca Gregoratti Matteo Amati Alexei Barinov Andrea Goldoni Maya Kiskinova Sincrotrone Trieste S.C.P.A. Elettra LaboratoryArea Science ParkS.S.14Km.163.5I-34149 TriesteItaly Laboratorio TASC IOM-CNR Area Science ParkS.S.14Km.163.5I-34149 TriesteItaly Department of Physics Southern Illinois University Carbondale1245 Lincoln Dr.Neckers 478CarbondaleIL 62901-4401USA

Contactless monitoring with photoelectron microspectroscopy of the surface potential along individual nano-structures,created by the X-ray nanoprobe,opens exciting possibilities to examine quantitatively size-and surface-chemistry-effects on the electrical transport of semiconductor nanowires(NWs).Implementing this novel approach-which combines surface chemical microanalysis with conductivity measurements-we explored the dependence of the electrical properties of undoped GaAs NWs on the NW width,temperature and surface *** following the evolution of the Ga 3d and As 3d core level spectra,we measured the position-dependent surface potential along the GaAs NWs as a function of NW diameter,decreasing from 120 to~20 nm,and correlated the observed decrease of the conductivity with the monotonic reduction in the NW diameter from 120 to~20 *** of the GaAs NWs to oxygen ambient leads to a decrease in their conductivity by up to a factor of 10,attributed to the significant decrease in the carrier density associated with the formation of an oxide shell.

关键词： Semiconductor nanowires charge transport surface oxidation photoelectron X-ray microscopy charging GaAs

On the Existence and Uniqueness of Solutions for Nonlinear System Modeling Three-Dimensional Viscous Stratified Flows

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Journal of Applied Mathematics and Physics 2014年第7期2卷 528-539页

作者： andrei Giniatoulline Tovias Castro Department of Mathematics Los Andes University Bogota Colombia

We establish the uniqueness and local existence of weak solutions for a system of partial differential equations which describes non-linear motions of viscous stratified fluid in a homogeneous gravity field. Due to the presence of the stratification equation for the density, the model and the problem are new and thus different from the classical Navier-Stokes equations.

关键词： Partial Differential Equations Sobolev Spaces Fluid Dynamics Stratified Fluid Viscous Fluid

Simulation of a Walking Robot-E xoskeleton Movement on a Movable Base

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Journal of Artificial Intelligence and Technology 2021年第4期1卷 207-213页

作者： Sergey Jatsun andrei Malchikov Andrey Yatsun AI Manji Khalil Andres Santiago Martinez Leon Department of Mechanics Mechatronics and RoboticsSouthwest State UniversityKursk 305040Russian Federation

The paper studies the problem of movement of a two-legged walking machine on a movable *** task is relevant for design rehabilitation and mechanotherapy complexes for people with impaired functions of the musculoskeletal system and presents a mathematical model that allows obtaining the kinematic and dynamic parameters of the movement of the executive units of the device under *** paper presents a method for planning the trajectory of exoskeleton links,its algorithmic and software *** paper proposes the structure of the automatic link position control system,which ensures the movement of the executive links along a given trajectory.A mathematical apparatus is proposed for studying the dynamics of the controlled movement of the links of the human-machine system of the *** article presents the results of *** on the movement of the low-limb exoskeleton leg in the one step mode and analyzes them.

关键词： walking robot mathematical simulation kinematic analysis trajectory planning

Analytical Modelling of Fuel Cells Har/Cdr

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Rheology of Superplastic Ceramics

2010年

作者： andrei A. Kulikovsky

ISBN: (数字)9780444535610

ISBN: (纸本)9780444535603

In fuel cell research, the gap between fundamental electrochemical processes and the engineering of fuel cell systems is bridged by the physical modelling of fuel cells. This relatively new discipline aims to understand the basic transport and kinetic phenomena in a real cell and stack environment, paving the way for improved design and performance. The author brings his unique approach to the analytical modeling of fuel cells to this essential reference for energy technologists.

关键词： Fuel cellsMathematical models.

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Journal of Materials Science & Technology 2001年第1期17卷 123-124页

作者： andrei N.Yershov and Jeong Seung Lab. of Superplastic Materials Deformation, Moscow State Steels and Alloys institute 4, Leninsky Prospect, Moscow, 117936, Russia Lab. of Superplast. Mater. Deformat. Moscow State Steels and Alloys Inst. 4 Lenisky Prospect Moscow 117936 Russian Federation

Constitutive equation of rheology describing a phenomenological level of superplastic deformation as functional correlation between tensor components of stress and strain rate has been analyzed for the case of superplastic ceramic flow. Rheological properties of material are taken into account by means of scalar rheological coefficients of shear and volume viscosity, which are functions of temperature, effective stress (or strain rate) and density of material.

关键词： Rheology of Superplastic Ceramics Zn

Evidence for polarization-induced phase transformations and degradation in CH_(3)NH_(3)PbI_(3)

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Nano Research 2023年第7期16卷 9435-9442页

作者： Aleksei Yu.Grishko Maria A.Komkova Ekaterina I.Marchenko Alexandra V.Chumakova Alexey B.Tarasov Eugene A.Goodilin andrei A.Eliseev Department of Materials Science MSU-BIT UniversityShenzhen 517182China Department of Chemistry Lomonosov Moscow State UniversityMoscow 119991Russia Department of Materials Science Lomonosov Moscow State UniversityMoscow 119991Russia European Synchrotron Radiation Facility F-38042 GrenobleFrance

In solar cells,hybrid halide perovskites operate under constant bias,thus their stability towards electric field-induced degradation is of key *** we report on evidence of previously unidentified electric field-induced transitions and degradation path of CH_(3)NH_(3)PbI_(3)(MAPbI_(3))using elemental and phase *** films of MAPbI_(3) were deposited onto 1-2μm-pitch interdigitated electrodes and subjected to direct current(DC)-*** MAPbI_(3) layer polarized with<0.8 V/μm DC electric field undergoes pronounced ion redistribution to methylammonium-rich MAPbI_(3)-y(y<0.6)and iodine-rich MA1-xPbI3(x<0.3)***-induced loss of both methylammonium and iodine provokes degradation of MAPbI_(3).Using nanofocus grazing-incidence wide-angle X-ray scattering(GIWAXS),we unambiguously showed that the bias voltage induces the transformation ofβ-MAPbI_(3) to metastableδ-MAPbI_(3) polymorph via alignment of polar organic cation with the electric *** transformation is partially reversible upon field ***,once formed,δ-MAPbI_(3) disrupts the morphology of pristine film and undergoes decomposition toβ-MAPbI_(3)(β-MAPI)and PbI_(2).With the aforementioned compositional and phase changes,only MA-rich part serves as the charge separation layer,while the I-rich excitation is blocked with the PbI_(2) barrier serving as holes trapping *** observations reveal the intermediate steps in electric-field-driven degradation of halide perovskites and show the role of polar cations in the process,which is instructive for further material design with higher stability metrics.

关键词： halide perovskites stability degradation electric field ionic conductivity stoichiometry

Philippine retinoblastoma initiative multi-eye center study 2010-2020

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International Journal of Ophthalmology(English edition) 2024年第1期17卷 144-156页

作者： Roland Joseph D.Tan Gary John V.Mercado Patricia E.Cabrera Paulita Pamela P.Astudillo Rolando Enrique D.Domingo Josept Mari S.Poblete Charmaine Grace M.Cabebe Adriel Vincent R.Te Melissa Anne S.Gonzales Jocelyn G.Sy Beltran Alexis A.Aclan Jayson T.So Fatima G.Regala Kimberley Amanda K.Comia Josemaria M.Castro Mara Augustine S.Galang Aldous Dominic C.Cabanlas Benedicto Juan E.Aguilar Gabrielle S.Evangelista Jo Michael Maniwan andrei P.Martin Calvin Y.Martinez John Alfred H.Lim Rena Ivy Bascuna Rachel M.Ng Kevin B.Agsaoay Kris Zanna A.Acluba-Arao Ellaine Rose V.Apostol Beatriz M.Prieto Department of Ophthalmology and Visual Sciences Philippine General HospitalManila 1000Philippines Department of Ophthalmology Baguio General Hospital and Medical CenterBaguio City 2600Philippines Department of Ophthalmology Manila Doctors HospitalManila 1000Philippines Department of Ophthalmology Rizal Medical CenterPasig City 1600Philippines Department of Ophthalmology Jose B.Lingad Memorial Regional HospitalPampanga 2000Philippines Department of Ophthalmology Southern Philippines Medical CenterDavao City 8000Philippines Department of Ophthalmology East Avenue Medical CenterQuezon City 1100Philippines Department of Ophthalmology Northern Mindanao Medical CenterCagayan de Oro City 9000Philippines Department of Ophthalmology Cebu Velez General HospitalCebu City 6000Philippines Legazpi Eye Center Legazpi City 4500Philippines Department of Ophthalmology Cagayan Valley Medical CenterTuguegarao City 3500Philippines

AIM:To provide a comprehensive and more representative national data on the disease,especially on treatment options and outcomes,and to determine access of retinoblastoma patients from Luzon,Visayas and Mindanao to eye care,and determine if access is associated with delay in consultation,staging and ***:Cohort study of retinoblastoma patients seen in eleven institutions located in the three major areas of the Philippines namely Luzon,Vizayas and Mindanao from ***:Totally 636 patients,involving 821 eyes,were ***(57%)were from Luzon and were seen in institutions in Luzon(72%).Annually,58±10 new cases were seen with 71%having unilateral *** delay of consultation remained long at 9(3,17)mo,longest in patients with unilateral disease(P<0.02)and those from the Visayas(P<0.003).Based on the International Retinoblastoma Staging System,only 35%of patients had Stage 1 while 47%already had extraocular *** was the most common treatment received by 484 patients while intravenous chemotherapy was received by *** were 250(39%)patients alive,195(31%)dead,85(13%)abandoned,17(3%)refused and 89(14%)with no ***:This study presents the largest cohort of retinoblastoma patients in the Philippines in terms of patients’and participating institutions’number and geographical location and type of institution(private and public).It also presents more comprehensive data on the treatments used and outcomes(survival,globe salvage,and vision retention rates).Delay in consultation was still long among patients leading to advanced disease stage and lower survival *** increasing capacity to diagnose and manage retinoblastoma in the country,the delay of consultation remains long primarily due to accessibility issues to eye care institutions especially in the Visayas and financial *** delay was still significant that overall survival rate remain low.

关键词： retinoblastoma Philippines clinical profile

Simulating FAS-induced apoptosis by using P systems

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Progress in Natural Science:Materials International 2007年第4期17卷 424-431页

作者： Smitha Cheruku andrei Pǎun Francisco J. Romero-Campero Mario J. Pérez-Jiménez Oscar H. Ibarra Department of Computer Science/IfM Louisiana Tech UniversityP.O. Box 10348RustonLA 71272USA Department of Computer Science and Artificial Intelligence University of SevilleAvda. Reina Mercedes s/n 41012SevillaSpain Department of Computer Science University of California-Santa BarbaraSanta BarbaraCA 93106USA

In contrast to differential equations, P systems are an unconventional model of computation which takes into consideration the discrete character of the quantity of components and the inherent randomness that exists in biological phenomena. The key feature of P systems is their compartmentalised structure which represents the heterogeneity of the structural organisation of the cells, and where one can take into account the role played by membranes in the functioning of the system, for example signalling at the cell surface, selective uptake of substances from the media, diffusion across different compartments, etc. We show here that P systems can be a reliable tool for Systems Biology and could even outperform in some cases the current simulation techniques based on differential equations. We will also use a strategy based on the well known Gillespie algorithm but running on more than one compartment called Multi-compartmental Gillespie Algorithm.

关键词： FAS-induced apoptosis P systems deterministic waiting times algorithm multi-compartmental Gillespie algorithm.