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Journal articles on the topic 'Past perfect compound'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Nagy, Katalin C. "Aspecto verbal en la evolución de la construcción catalana "anar + infinititu"." Acta Hispanica 13 (January 1, 2008): 75–96. http://dx.doi.org/10.14232/actahisp.2008.13.75-108.

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The paper presents the special characteristics of the Catalan past perfect tense. In the majority of languages, and, more specifically, in neo-latin languages, similar structures, containing verbs of movement tend to modify into future tense. As opposed to this, the structure“anar + infinitive” stands for past perfect in modern Catalan. The perfect aspect component raises the question of how this tense became grammaticized, a process examined by the author from the historic pragmatic point of view. There are two main hypotheses concerning the aspect of the medieval antecedent of the structure.

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2

Sams, Christopher D. "Unaccusativity and Perfect Auxiliary Selection in Romance: Theory and an Observational Study in Second Language Acquisition." International Journal of Linguistics 12, no. 4 (2020): 155. http://dx.doi.org/10.5296/ijl.v12i4.17445.

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The aim of this paper is to investigate the properties associated with unaccusativity and the selection of auxiliary verbs (AUX) in the perfect tenses of the modern Romance languages. The modern languages that have a split-AUX system (such as Italian and French) operate under a principle in which some intransitive verbs select the equivalent of to be as their AUX in the compound past tenses, and others select the equivalent of to have. In research I have conducted over the past decade in the Italian language classroom, Bentley and Eythórsson’s auxiliary selection hierarchy (ASH) is best suited

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3

Nurani, Siti. "REGISTER ANALYSIS OF THE CONVERSATIONS AMONG PETROLEUM ENGINEERS." IJEE (Indonesian Journal of English Education) 1, no. 2 (2014): 167–88. http://dx.doi.org/10.15408/ijee.v1i2.1343.

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This present research aims at identifying register used in the conversations among petroleum engineers by examining the linguistic feature which is viewed from the aspect of the field, the tenor and the mode of discourse of the Systemic Functional Linguistics (SFL) approach. Findings show that in the field of discourse, all terms of register found in the experiential domain analysis function as technical terms, of which the two major forms of nouns and verbs (i.e., single-word and compound/phrasal word forms) are the most frequent categories identified among other kinds of technical terms. The

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4

Zhang, Peng, Chunsheng Liu, Xiasheng Zheng, et al. "Full-Length Multi-Barcoding: DNA Barcoding from Single Ingredient to Complex Mixtures." Genes 10, no. 5 (2019): 343. http://dx.doi.org/10.3390/genes10050343.

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DNA barcoding has been used for decades, although it has mostly been applied to some single-species. Traditional Chinese medicine (TCM), which is mainly used in the form of combination-one type of the multi-species, identification is crucial for clinical usage. Next-generation Sequencing (NGS) has been used to address this authentication issue for the past few years, but conventional NGS technology is hampered in application due to its short sequencing reads and systematic errors. Here, a novel method, Full-length multi-barcoding (FLMB) via long-read sequencing, is employed for the identificat

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Hribersek, Matej. "Traditional theory about the origin of the Latin imperfect." Linguistica 43, no. 1 (2003): 13–24. http://dx.doi.org/10.4312/linguistica.43.1.13-24.

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The imperfect tense expresses a continuous past action which is unfinished, as the name itself indicates - im-perfectum. This characteristic accounts for its three uses:a) pure, durative imperfectb) iterative imperfect andc) imperfect de conatu. These uses are best preserved in Greek but were also used in Latin, where the forms of the old imperfect disappeared. In Proto-Germanic, the IE imperfect, the aorist and the perfect continue partly in the old perfect and partly in its counterpart, the preterite, while, in Proto-Slavonic, the old imperfect for non momentary actions was replaced by form

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6

Koseska-Toszewa, Violetta, and Antoni Mazurkiewicz. "Constructing catalogue of temporal situations." Cognitive Studies | Études cognitives, no. 10 (November 24, 2015): 71–109. http://dx.doi.org/10.11649/cs.2010.004.

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Constructing catalogue of temporal situationsThe paper is aiming to create a common basis for description, comparing, and analysis natural languages. As a subject of comparison we have chosen temporal structures of some languages. For such a choice there exists a perfect tool, describing basic temporal phenomena, namely an ordering of states and events in time, certainty and uncertainty, independency of histories of separate objects, necessity and possibility. This tool is supported by the Petri nets formalism, which seems to be well suited for expressing the above mentioned phenomena. Petri n

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Rahimifar, Mansour, Vali Rezai, and Rezvan Motavalian. "A Functional Analysis of Present Perfect in Persian." Theory and Practice in Language Studies 7, no. 12 (2017): 1337. http://dx.doi.org/10.17507/tpls.0712.24.

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The aim of this article is to establish the present perfect functions syntactically and semantically in Persian. Taking the definition of perfect, typically functioning to express anteriority or perfect aspect, the authors analyzed this construction in Persian in terms of function, meaning, and usage. Using functional-typological approach, the category of perfect was analyzed in regards to form, composition, meaning, expression, and its specific uses in Persian in order to determine its fundamental functions and meanings. From a synchronic point of view, the resultative, experiential and curre

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Rachtan-Janicka, Joanna, Alicja Ponder, and Ewelina Hallmann. "The Effect of Organic and Conventional Cultivations on Antioxidants Content in Blackcurrant (Ribes nigrum L.) Species." Applied Sciences 11, no. 11 (2021): 5113. http://dx.doi.org/10.3390/app11115113.

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The number of consumers seeking safe and health-beneficial foods is systematically increasing. Consumers demand more environmentally friendly and safe food options coming from organic farming. Blackcurrants fruits are a perfect source of biological active compounds, such as vitamin C, polyphenols and flavonoids as well anthocyanins. Organic agricultural practices have modified the level of bioactive compounds in blackcurrant fruits. The novelty and the aim of the presented study was to compare the concentrations of selected health-promoting antioxidants in fruits of three blackcurrants (‘Ben A

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Meier, Beat, and Daniela Spriano. "Modern HPTLCA Perfect Tool for Quality Control of Herbals and Their Preparations." Journal of AOAC INTERNATIONAL 93, no. 5 (2010): 1399–409. http://dx.doi.org/10.1093/jaoac/93.5.1399.

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Abstract Herbals and herbal preparations are complex mixtures with numerous natural compounds in an uncharacterized matrixtruly multicomponent systems. This is in contrast to most of the samples of the pharmaceutical and, in part, the food industry, where primarily single compounds have to be analyzed. Recently, models for the characterization of multicomponent systems with near-IR, NMR, and MS combined with chemometric tools have been developed. However, the complexity and sophistication of such methods still prevent their general applicability to the QC of herbals. On the other hand, modern

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Лобанова, Алевтина Степановна, and Роман Валентинович Гайдамашко. "MARKERS OF INFLECTIONAL GRAMMATICAL MEANINGS IN THE KOMI-PERMYAK LANGUAGE OF THE LATE 18TH CENTURY (BASED ON THE MATERIAL OF ARCHPRIEST ANTONY POPOV’S HANDWRITTEN DICTIONARIES)." Tomsk Journal of Linguistics and Anthropology, no. 1(31) (June 29, 2021): 34–46. http://dx.doi.org/10.23951/2307-6119-2021-1-34-46.

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В статье представлен фрагмент лингвистического анализа памятников ранней коми-пермяцкой письменности — рукописей протоиерея Антония Попова (1748–1788), которые датированы 1785 годом и на данный момент известны как первые фундаментальные труды по пермяцкому языкознанию — опыт грамматики и два словаря — алфавитный и тематический. Эти рукописи до сих пор не изданы и исследованы в недостаточной степени. Цель настоящего исследования — выявить и проанализировать показатели словоизменительных грамматических значений в коми-пермяцком языке конца XVIII века на материале словарей А. Попова. В сопоставит

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Kazanskiy, Nikolay Lvovich, Muhammad Ali Butt, and Svetlana Nikolaevna Khonina. "Carbon Dioxide Gas Sensor Based on Polyhexamethylene Biguanide Polymer Deposited on Silicon Nano-Cylinders Metasurface." Sensors 21, no. 2 (2021): 378. http://dx.doi.org/10.3390/s21020378.

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In this paper, we have numerically investigated a metasurface based perfect absorber design, established on the impedance matching phenomena. The paper comprises of two parts. In the first part, the device performance of the perfect absorber—which is composed of silicon nano-cylindrical meta-atoms, periodically arranged on a thin gold layer—is studied. The device design is unique and works for both x-oriented and y-oriented polarized light, in addition to being independent of the angle of incidence. In the second part of the paper, a CO2 gas sensing application is explored by depositing a thin

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Kazanskiy, Nikolay Lvovich, Muhammad Ali Butt, and Svetlana Nikolaevna Khonina. "Carbon Dioxide Gas Sensor Based on Polyhexamethylene Biguanide Polymer Deposited on Silicon Nano-Cylinders Metasurface." Sensors 21, no. 2 (2021): 378. http://dx.doi.org/10.3390/s21020378.

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In this paper, we have numerically investigated a metasurface based perfect absorber design, established on the impedance matching phenomena. The paper comprises of two parts. In the first part, the device performance of the perfect absorber—which is composed of silicon nano-cylindrical meta-atoms, periodically arranged on a thin gold layer—is studied. The device design is unique and works for both x-oriented and y-oriented polarized light, in addition to being independent of the angle of incidence. In the second part of the paper, a CO2 gas sensing application is explored by depositing a thin

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13

Araujo, Leandro Silveira de. "Contribuições das abordagens semasiológica e onomasiológica para o estudo da temporalidade verbal: uma análise do passado em espanhol / Contributions of Semasiological and Onomasiological Approaches to the Study of Verbal Temporality: an Analysis of the Past Tense in Spanish." Caligrama: Revista de Estudos Românicos 24, no. 2 (2019): 113. http://dx.doi.org/10.17851/2238-3824.24.2.113-136.

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Resumo: O objetivo deste trabalho é avaliar e questionar o tratamento descritivo dado aos tempos verbais da língua espanhola, com especial atenção às formas compostas (he estado) e simples (estuve) do pretérito perfecto. Para tanto, afirma-se que uma análise que promova um conhecimento mais compatível com o uso efetivo da língua deve surgir de uma abordagem semasiológica – que investiga as potencialidades funcionais de dada forma – e ser complementada por uma análise onomasiológica – que investiga as construções vinculadas a dado domínio funcional. Por meio desse duplo eixo investigativo é pos

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Iwamoto, Nancy. "Studies of Mesoscale Models Parameterized by Molecular Models for Interface Failure in Epoxy Molding Compounds." International Symposium on Microelectronics 2011, no. 1 (2011): 000657–64. http://dx.doi.org/10.4071/isom-2011-wp1-paper1.

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Deeper understanding of material failure must include consideration of contributions from the molecular and atomistic scales from which a more complete root cause picture may be constructed. The current study, supported by an international consortium effort (NanoInterface) [1], reports efforts to bridge the gap between molecular models and macroscale models by use of a mesoscale discrete particle method. Both the initial stress-strain curve and the latter part of the stress strain curve has been developed for perfect (flat) interfaces as well as simulated rough interfaces, using a saw-tooth co

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15

Alouges, Francois, Matthieu Aussal, and Emile Parolin. "FEM-BEM Coupling for Electromagnetism with the Sparse Cardinal Sine Decomposition,." ESAIM: Proceedings and Surveys 63 (2018): 44–59. http://dx.doi.org/10.1051/proc/201863044.

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This paper presents a FEM-BEM coupling method suitable for the numerical simulation of the electromagnetic scattering of objects composed of dielectric materials and perfect electric conduc- tors. The originality of the approach lies in part in the use of the newly proposed Sparse Cardinal Sine Decomposition SCSD) method for the BEM part of the computation and the fact that the simulation software is almost entirely written in MATLAB. The performance of the method is illustrated by the computation of the electromagnetic scattering by an UAV-like object with two RAM regions proposed in the work

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16

Zhang, Rui Zhu, Jie Yang, Da Kao Yan, Zhi Meng Guo, and Wan Shan Su. "Consolidation of High-Level Radioactive Wastes into Strontium Titanate by CS Method." Materials Science Forum 704-705 (December 2011): 625–30. http://dx.doi.org/10.4028/www.scientific.net/msf.704-705.625.

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Strontium Titanate synroc samples were synthesized by combustion cynthesis (CS). Sr directly took part in the synthesis process. As a result, loading content issue is basically resolved. The products were characterized by density, microhardness X-ray diffraction, and scanning electron microscopy (SEM/EDS). The leaching rate was measured by the method of PCT. The results indicate that the Sr2+-SrTiO3 compound with high density, low leach rate and high property stability and the synthesis process is feasible in technology and economy. It can be concluded that the Strontium Titanate synroc is a p

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17

Andrason, Alexander. "The Basse Mandinka "future"." Studies in African Linguistics 41, no. 1 (2012): 1–38. http://dx.doi.org/10.32473/sal.v41i1.107279.

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The present paper provides a detailed analysis of the semantic content of the BE…LA formation found in the Basse Mandinka language. It demonstrates that the meaning of this locution corresponds to a complex set of various temporal, aspectual and modal senses: perfective and imperfective future, future perfect, future-in-the-past, intentional future, future with imperative and prohibitive nuances, real factuality as well as real and unreal counterfactuality. The semantic potential of the construction composed of all the atomic values is explained as a consistent whole, i.e., as a manifestation

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18

Tawiah, Benjamin, Bin Yu, and Bin Fei. "Advances in Flame Retardant Poly(Lactic Acid)." Polymers 10, no. 8 (2018): 876. http://dx.doi.org/10.3390/polym10080876.

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PLA has become a commodity polymer with wide applications in a number of fields. However, its high flammability with the tendency to flow in fire has limited its viability as a perfect replacement for the petrochemically-engineered plastics. Traditional flame retardants, which may be incorporated into PLA without severely degrading the mechanical properties, are the organo-halogen compounds. Meanwhile, these compounds tend to bioaccumulate and pose a risk to flora and fauna due to their restricted use. Research into PLA flame retardants has largely focused on organic and inorganic compounds fo

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19

Engel, Dulcie M. "Word Order and Tense Choice in Standard Written French." Lingvisticæ Investigationes. International Journal of Linguistics and Language Resources 10, no. 2 (1986): 331–43. http://dx.doi.org/10.1075/li.10.2.06eng.

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SUMMARY In modern French, the use of simple and composed tenses varies with respect to word order in two specific cases: firstly with subject inversion, and secondly with insertion of material between the auxiliary and the past participle. With the 'passé simple' (past historic) and the 'passé composé' (perfect), both of which can express past punctual actions, this difference in word order may influence tense choice. If a particular effect (contrast, emphasis...) is desired in the phrase, either the 'passé simple' or the 'passé composé' can be used to express the punctual past, the choice bei

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Kim, Man Sig. "Improved Density Distribution in Powder Metallurgy Parts with Filtering Methods." Advanced Materials Research 26-28 (October 2007): 445–48. http://dx.doi.org/10.4028/www.scientific.net/amr.26-28.445.

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Powder Metallurgy (P/M) is mainly composed of four steps: powder feeding, compaction, ejection, and sintering. A feedshoe moves forward and backward over the die cavity to fill it with metal powders. Possible problem in this stage is the uneven supply of powder on the horizontal direction. It can cause tool breakage due to uneven density distribution. Unevenly-distributed powder also causes internal cracks during compaction or warpage during sintering. Another problem during powder feeding is the inclusion of air with powder. This changes the overall density of the part. Powder feeding mechani

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Manoliu, Maria M. "Changing Culture Changing Grammar." Tense and Aspect 12 (December 31, 1998): 103–27. http://dx.doi.org/10.1075/bjl.12.07man.

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Abstract. It has been often emphasized that, in Romance, the category of aspect has become subordinated to the category of tense and that the development of compound and double-compound forms was due to the necessity of recreating the opposition between perfectum and infectum, an opposition which dominated the Latin temporal system on the whole. As far as we know, there is no satisfactory explanation for this phenomenon. According to our hypothesis, the cyclic bleaching of the 'resultative value' is a consequence of a fundamental change in parameters affecting various categories such as gender

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Awan, Z. A., Hassan Ullah, Ahsan Ullah, and Afshan Ashraf. "Effective parameters of a metamaterial composed of dielectric coated conducting cylindrical rods." International Journal of Microwave and Wireless Technologies 12, no. 8 (2020): 797–808. http://dx.doi.org/10.1017/s1759078720000094.

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AbstractIn the first part, the scattering characteristics of an isolated dielectric coated conducting rod have been investigated. The types of considered coatings for the scattering analysis are realistic materials including barium strontium titanate, magnetodielectric, gallium arsenide, and silicon carbide. It is found that the gallium arsenide coating can be used to significantly reduce the scattering from a thin perfectly electric conducting cylindrical rod at specific observation angles. In the second part, the effective permittivity and permeability of metamaterials composed of two dimens

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Yang, Jin, Bingcui Cai, Patrick Glencer, Zhiqing Li, Xiaomin Zhang, and Xiaorong Li. "Induced Pluripotent Stem Cells and Outer Retinal Disease." Stem Cells International 2016 (2016): 1–6. http://dx.doi.org/10.1155/2016/2850873.

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The retina, which is composed of multiple layers of differing cell types, has been considered the first choice for gene therapy, disease modeling, and stem cell-derived retinal cell transplant therapy. Because of its special characteristics, the retina, located in the posterior part of the eye, can be well observed directly after gene therapy or transplantation. The blood-retinal barrier is part of a specialized ocular microenvironment that is immune privileged. This protects transplanted cells and tissue. Having two eyes makes perfect natural control possible after a single eye receives gene

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Musil, Vladimir, Alzbeta Blankova, Vlasta Dvorakova, Radovan Turyna, and Vaclav Baca. "A plea for an extension of the anatomical nomenclature: Organ systems." Bosnian Journal of Basic Medical Sciences 19, no. 1 (2019): 1–13. http://dx.doi.org/10.17305/bjbms.2018.3195.

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This article is the third part of a series aimed at correcting and extending the anatomical nomenclature. Communication in clinical medicine as well as in medical education is extensively composed of anatomical, histological, and embryological terms. Thus, to avoid any confusion, it is essential to have a concise, exact, perfect and correct anatomical nomenclature. The Terminologia Anatomica (TA) was published 20 years ago and during this period several revisions have been made. Nevertheless, some important anatomical structures are still not included in the nomenclature. Here we list a collec

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Gorwa, Joanna, Robert Michnik, and Katarzyna Nowakowska-Lipiec. "In Pursuit of the Perfect Dancer’s Ballet Foot. The Footprint, Stabilometric, Pedobarographic Parameters of Professional Ballet Dancers." Biology 10, no. 5 (2021): 435. http://dx.doi.org/10.3390/biology10050435.

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This work aims to assess footprint parameters in a group of professional ballet dancers and to determine the correlation between the aforementioned parameters and lateralization, stabilometric parameters, pedobarographic parameters and work environment conditions. A group subjected to tests consisted of 44 elite professional ballet dancers and the reference group was composed of 44 students. The test of balance and thrust under feet involved 30 s-long free standing with open eyes on a podographic platform. The research-related analysis was concerned with footprint parameters (foot length and w

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Banga, Ivneet, Anirban Paul, Sriram Muthukumar, and Shalini Prasad. "Characterization of Room-Temperature Ionic Liquids to Study the Electrochemical Activity of Nitro Compounds." Sensors 20, no. 4 (2020): 1124. http://dx.doi.org/10.3390/s20041124.

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Over the past few years, room-temperature ionic liquid (RTIL) has evolved as an important solvent-cum-electrolyte because of its high thermal stability and excellent electrochemical activity. Due to these unique properties, RTILs have been used as a solvent/electrolyte/mediator in many applications. There are many RTILs, which possess good conductivity as well as an optimal electrochemical window, thus enabling their application as a transducer for electrochemical sensors. Nitroaromatics are a class of organic compounds with significant industrial applications; however, due to their excess use

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Chivers, Meredith L., and Lori A. Brotto. "Controversies of Women’s Sexual Arousal and Desire." European Psychologist 22, no. 1 (2017): 5–26. http://dx.doi.org/10.1027/1016-9040/a000274.

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Abstract. The past three decades have seen an unprecedented increase in empirical research on women’s sexual response. In this review, we critically examine current controversies and assumptions associated with the nature of women’s sexual arousal and desire. We focus specifically on four assumptions: (1) the assumption that women should be aroused by stimuli that align with their stated preferences, (2) the assumption that women’s physiological and self-reported arousal should perfectly align, (3) the assumption that sexual desire precedes sexual arousal, and (4) the assumption that a single

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Cerella, Claudia, Flavia Radogna, Mario Dicato, and Marc Diederich. "Natural Compounds as Regulators of the Cancer Cell Metabolism." International Journal of Cell Biology 2013 (2013): 1–16. http://dx.doi.org/10.1155/2013/639401.

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Even though altered metabolism is an “old” physiological mechanism, only recently its targeting became a therapeutically interesting strategy and by now it is considered an emerging hallmark of cancer. Nevertheless, a very poor number of compounds are under investigation as potential modulators of cell metabolism. Candidate agents should display selectivity of action towards cancer cells without side effects. This ideal favorable profile would perfectly overlap the requisites of new anticancer therapies and chemopreventive strategies as well. Nature represents a still largely unexplored source

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Mei-Ling, Chen, Niu Dong, Ruan Hui, et al. "Construction of a membrane-lytic immunotoxin using melittin and epidermal growth factor." Chinese Journal of Agricultural Biotechnology 6, no. 1 (2009): 35–39. http://dx.doi.org/10.1017/s1479236208002362.

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AbstractEpidermal growth factor receptor (EGFR) is becoming a perfect target for killing carcinoma cells, especially because of its overexpression on the surface of these cells. Cationic antimicrobial peptides (CAP) have their own special mechanism of membrane-lytic cytotoxicity. In this study, a membrane-lytic immunotoxin (IT), chimeric protein MEGFMEL, was constructed to kill carcinoma cells with EGFR overexpression. This protein is composed of mouse (Mus musculus) epidermal growth factor (MEGF), as the target part, and melittin (MEL), as the cytotoxic part. Using Escherichia coli BL21 and p

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Frith, Stephen. "A Primitive exchange: on rhetoric and architectural symbol." Architectural Research Quarterly 8, no. 1 (2004): 39–45. http://dx.doi.org/10.1017/s1359135504000065.

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In relating stories about origins that recall an idealized ‘Primitive’ condition, Vitruvius seeks legitimacy for judgement about architecture. At issue is the problem of authority, and Vitruvius is anxious about authority, and about order. Vitruvius' audience for his story of the Primitive dwelling, as for the rest of his treatise, the Ten Books on Architecture, is the emperor Octavian, introduced in the dedicatory preface as ‘imperator Caesar.’ His book to Caesar asserts a commonplace among rhetoricians, that authority is sought in a distant past, and in exemplars, useful precedents that prom

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Krychowska, Agnieszka, Marian Kordas, Maciej Konopacki, et al. "Mathematical Modeling of Hydrodynamics in Bioreactor by Means of CFD-Based Compartment Model." Processes 8, no. 10 (2020): 1301. http://dx.doi.org/10.3390/pr8101301.

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This study presents the procedure of deriving a compartmental model (CM) based on an analysis obtained from the computational fluid dynamics (CFD) model of a bioreactor. The CM is composed of two parts, a structural (that takes into account the architecture of the mathematical model), and a parametric part (which contains the extrinsic parameters of the model). The CM is composed of the branches containing the set of perfectly mixed continuous stirred-tank reactors (CSTRs) in a configuration that matches the bioreactor’s flow patterns. Therefore, this work’s main objective was to develop a mat

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Trépanier, Sylvie, and Pierre Nolin. "Étude des relations entre des measures d'évaluation subjective et objective de mémoire et des mesures psychosociales chez des personnes âgées entre 55 et 65 ans." Canadian Journal on Aging / La Revue canadienne du vieillissement 16, no. 1 (1997): 84–100. http://dx.doi.org/10.1017/s0714980800014173.

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ABSTRACTA review of the literature shows that only a weak connection exists between objective memory tests and self-evaluation memory questionnaires. The object of the present study was to explore which of the mnemonic, affective or psychosocial factors influence subjective evaluation of the memory function. This study is composed of a self-evaluation memory questionnaire, an ecologic-type objective memory evaluation, two affective state measures, anxiety and depression, and an inventory of life events. Sixty elderly persons took part in the study. They were divided into two groups, with attri

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Goldshtein, Alexander, and Michael Shapiro. "Mechanics of collisional motion of granular materials. Part 1. General hydrodynamic equations." Journal of Fluid Mechanics 282 (January 10, 1995): 75–114. http://dx.doi.org/10.1017/s0022112095000048.

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Collisional motion of a granular material composed of rough inelastic spheres is analysed on the basis of the kinetic Boltzmann–Enskog equation. The Chapman–Enskog method for gas kinetic theory is modified to derive the Euler-like hydrodynamic equations for a system of moving spheres, possessing constant roughness and inelasticity. The solution is obtained by employing a general isotropic expression for the singlet distribution function, dependent upon the spatial gradients of averaged hydrodynamic properties. This solution form is shown to be appropriate for description of rapid shearless mot

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MATSUURA, HIROYUKI, and MASAHIRO NAKANO. "RELATIVISTIC QUANTUM FIELD THEORY FOR CONDENSED SYSTEMS-(III): AN EXPLICIT EXPRESSION OF ATOMIC SCHWINGER–DYSON METHOD." International Journal of Modern Physics B 19, no. 11 (2005): 1905–23. http://dx.doi.org/10.1142/s0217979205029596.

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A new explicit expressions of self-energies Πμν and Σ are introduced for photons and electrons based on the particle-hole-antiparticle representation (PHA) of Atomic Schwinger–Dyson formalism (ASD). The PHA representation describes exactly the physical processes such as particle-hole excitations (electron-hole) and particle-antiparticle excitations (electron-positron). The self-energy Σ includes both the quantum component and the classical component (classical external field and Coulomb's field), which are divided into the scalar part Σs and 4-dimensional vector parts Σ0, Σj. The electron prop

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Harer, Sunil, Manish Bhatia, and Vikram Kawade. "Synthesis, Antimicrobial Evaluation and Molecular Docking of Some Potential 2,6-disubstituted 1H-Benzimidazoles; Non-Classical Antifolates." Medicinal Chemistry 15, no. 7 (2019): 813–32. http://dx.doi.org/10.2174/1573406415666190206231555.

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Background: Dihydrofolate reductase is one of the important enzymes for thymidylate and purine synthesis in micro-organisms. A large number of drugs have been designed to inhibit microbial DHFR but over the period of time, some drugs have developed resistance and cross reactivity towards the enzyme. Over the past few decades, benzimidazoles, triazoles and their derivatives have been grabbing the attention of the synthetic chemists for their wide gamut of antibacterial and antifungal activities targeting microbial protein DHFR. Objective: Our goal behind present investigation is to explore benz

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Schmøkel, Mette Stokkebro, Lasse Bjerg, Finn Krebs Larsen, et al. "Comparative study of X-ray charge-density data on CoSb3." Acta Crystallographica Section A Foundations of Crystallography 69, no. 6 (2013): 570–82. http://dx.doi.org/10.1107/s0108767313024458.

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CoSb3is an example of a highly challenging case for experimental charge-density analysis due to the heavy elements (suitability factor of ∼0.01), the perfect crystallinity and the high symmetry of the compound. It is part of a family of host–guest structures that are potential candidates for use as high-performance thermoelectric materials. Obtaining and analysing accurate charge densities of the undoped host structure potentially can improve the understanding of the thermoelectric properties of this family of materials. In a previous study, analysis of the electron density gave a picture of c

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Brocchini, D., F. Chiabrando, E. Colucci, et al. "THE GEOMATICS CONTRIBUTION FOR THE VALORISATION PROJECT IN THE ROCCA OF SAN SILVESTRO LANDSCAPE SITE." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-5/W1 (May 16, 2017): 495–502. http://dx.doi.org/10.5194/isprs-archives-xlii-5-w1-495-2017.

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This paper proposes an emblematic project where several multi-sensor strategies for spatial data acquisition and management, range based and image based, were combined to create a series of integrated territorial and architectural scale products characterized by a rich multi-content nature. The work presented here was finalized in a test site that is composed by an ensemble of diversified cultural deposits; the objects that were surveyed and modelled range from the landscape with its widespread mining sites, the main tower with its defensive role, the urban configuration of the settlement, the

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König, Christina, Dirk Eulberg, Janosch Gröning, et al. "A linear megaplasmid, p1CP, carrying the genes for chlorocatechol catabolism of Rhodococcus opacus 1CP." Microbiology 150, no. 9 (2004): 3075–87. http://dx.doi.org/10.1099/mic.0.27217-0.

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The Gram-positive actinobacterium Rhodococcus opacus 1CP is able to utilize several (chloro)aromatic compounds as sole carbon sources, and gene clusters for various catabolic enzymes and pathways have previously been identified. Pulsed-field gel electrophoresis indicates the occurrence of a 740 kb megaplasmid, designated p1CP. Linear topology and the presence of covalently bound proteins were shown by the unchanged electrophoretic mobility after S1 nuclease treatment and by the immobility of the native plasmid during non-denaturing agarose gel electrophoresis, respectively. Sequence comparison

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Kaatz, Glenn W., Rama V. Thyagarajan, and Susan M. Seo. "Effect of Promoter Region Mutations and mgrA Overexpression on Transcription of norA, Which Encodes a Staphylococcus aureus Multidrug Efflux Transporter." Antimicrobial Agents and Chemotherapy 49, no. 1 (2005): 161–69. http://dx.doi.org/10.1128/aac.49.1.161-169.2005.

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ABSTRACT NorA is a Staphylococcus aureus multidrug transporter that confers resistance to structurally distinct compounds. The MgrA global regulatory protein is reported to augment norA expression when mgrA is overexpressed from an undefined plasmid-based promoter. Further details about norA regulatory mechanisms are scant. A chromosomal norA::lacZ transcriptional fusion was constructed in different S. aureus strains, and allele replacement was used to define the relevance of promoter region sequences to norA expression. The effect of mgrA overexpression in wild-type and mutant backgrounds was

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Awah, Paschal Kum. "An Ethnographic Study of Diabetes: Implications for the Application of Patient Centred Care in Cameroon." Journal of Anthropology 2014 (August 26, 2014): 1–12. http://dx.doi.org/10.1155/2014/937898.

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Participant observation was conducted to explore the understanding of diabetes and examine the implications of these understandings for providing effective patient centered care in Cameroon. Ethnographic techniques—content and thematic analysis—were used to analyze the data collected from diverse techniques. Most participants distinguished “natural,” “supernatural,” and “man-made” causes of diabetes. Such aetiologies guided the behaviour and approaches adopted for treatment and helped explain why biomedical and traditional healing frameworks could so readily be used in tandem. Clinical encount

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Dacke, Marie, Thuy A. Doan, and David C. O’Carroll. "Polarized light detection in spiders." Journal of Experimental Biology 204, no. 14 (2001): 2481–90. http://dx.doi.org/10.1242/jeb.204.14.2481.

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SUMMARYWe describe here the detection of polarized light by the simple eyes of spiders. Using behavioural, morphological, electrophysiological and optical studies, we show that spiders have evolved two different mechanisms to resolve the e-vector of light. Wolf spiders (Lycosidae), are able to turn in response to rotation of a polarized pattern at the zenith of their visual fields, and we also describe a strip in the ventral retina of the principal (anterio-median) eyes that views this location and has receptors tiered into two layers. This provides each pair of receptors with a similar optica

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Kuliński, Krzysztof, and Jacek Przybylski. "Stability and vibrations control of a stepped beam using piezoelectric actuation." MATEC Web of Conferences 157 (2018): 08004. http://dx.doi.org/10.1051/matecconf/201815708004.

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The objects of this studies are the stability and transversal vibrations of the system composed of three segments, where in the centre part of the system two piezoelectric patches are perfectly bonded to the top and bottom surface of the host beam. The system is kinematically loaded as a result of prescribed displacement of one or both end supports. For the analysis purposes three different beam end supports have been taken into consideration, which prevent longitudinal displacements i.e. clamped-clamped, clamped-pinned and pinned-pinned. This type of beam loading not only affect its natural v

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Kirihara, Soshu, Noritoshi Ohta, Youhei Takinami, and Satoko Tasakai. "Smart Processing of Micro Photonic Crystals for Terahertz Wave Control - Freeform Fabrication by Stereolithographic Technique -." Materials Science Forum 706-709 (January 2012): 1925–30. http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.1925.

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Photonic crystals with periodically arranged structures of ceramics can reflect light or electromagnetic waves through Bragg diffraction and exhibit forbidden gaps in transmission spectra. We have successfully fabricated micro diamond crystals including twined lattices with plane defects to realize wavelength selections in terahertz frequency ranges. Novel smart processing composed of computer aided design, manufacturing and evaluation was established. The terahertz waves are expected to detect micro cracks in material surfaces and structural defects in electric circuits by fine wave interfere

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Wang, Ze-Ping, and Qing Jiang. "A Yield Criterion for Porous Ductile Media at High Strain Rate." Journal of Applied Mechanics 64, no. 3 (1997): 503–9. http://dx.doi.org/10.1115/1.2788921.

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An approximate yield criterion for porous ductile media at high strain rate is developed adopting energy principles. A new concept that the macroscopic stresses are composed of two parts, representing dynamic and quasi-static components, is proposed. It is found that the dynamic part of the macroscopic stresses controls the movement of the dynamic yield surface in stress space, while the quasi-static part determines the shape of the dynamic yield surface. The matrix material is idealized as rigid-perfectly plastic and obeying the von Mises yield. An approximate velocity field for the matrix is

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Rouvière, Jean-Luc, та Alain Bourret. "Structural Transformation of a Germanium Σ=13 (510) [001] Tilt Grain Boundary under the Electron Beam". Proceedings, annual meeting, Electron Microscopy Society of America 48, № 1 (1990): 52–53. http://dx.doi.org/10.1017/s0424820100179014.

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The possible structural transformations during the sample preparations and the sample observations are important issues in electron microscopy. Several publications of High Resolution Electron Microscopy (HREM) have reported that structural transformations and evaporation of the thin parts of a specimen could happen in the microscope. Diffusion and preferential etchings could also occur during the sample preparation.Here we report a structural transformation of a germanium Σ=13 (510) [001] tilt grain boundary that occurred in a medium-voltage electron microscopy (JEOL 400KV).Among the differen

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Morsli, Souad, Mustapha Boussoufi, Amina Sabeur, Mohammed El Ganaoui, and Rachid Bennacer. "Small to large scale mixed turbulent convection: buildings application." International Journal of Numerical Methods for Heat & Fluid Flow 28, no. 1 (2018): 188–205. http://dx.doi.org/10.1108/hff-10-2017-0392.

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Purpose The use of natural ventilation by large openings to maintain thermal comfort conditions in the premises is a concept that is perfectly integrated into the traditional architecture of countries in the Mediterranean region or in tropical climates. In a temperate climate where the architecture is not usually designed to respond to the use of natural ventilation is seasonal and is done at the initiative of the occupants by making changes in the design of their doors. The European interest in natural ventilation, as a passive building air-conditioning technology, is increasing and has been

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Kang, Hyoung Jin, Hee Young Shin, Jun Eun Park, et al. "Perfect Engraftment after Fludarabine, Cyclophosphamide Plus Thymoglobulin Conditioning Regimen for Unrelated Transplantation in Severe Aplastic Anemia: Phase II Prospective Multi-Center Study in Korea." Blood 112, no. 11 (2008): 3003. http://dx.doi.org/10.1182/blood.v112.11.3003.3003.

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Abstract Anti-thymocyte globulin (ATG) has been used in severe aplastic anemia (SAA) as a part of the conditioning regimen. Among the many kinds of ATG preparations, thymoglobulin had been found to be more effective in preventing graft-versus-host disease (GVHD) and rejection of organ transplants. After the promising result of the pilot study (Bone Marrow Transplant. 2004. 34; 939), phase II prospective multi-center clinical trial was performed with fludarabine, cyclophosphamide plus thymoglobulin conditioning regimen to allow good engraftment in unrelated transplantation for SAA. Twenty-eight

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Radovic, Sanja, Aleksandar Urosevic, Katarina Hocevar, Ana Vuleta, Sanja Manitasevic-Jovanovic, and Branka Tucic. "Geometric morphometrics of functionally distinct floral organs in Iris pumila: Analyzing patterns of symmetric and asymmetric shape variations." Archives of Biological Sciences 69, no. 2 (2017): 223–31. http://dx.doi.org/10.2298/abs160912086r.

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The Iris flower is a complex morphological structure composed of two trimerous whorls of functionally distinct petaloid organs (the falls and the standards), one whorl of the stamens and one tricarpellary gynoecium. The petal-like style arms of the carpels are banded over the basal part of the falls, forming three pollination tunnels, each of which is perceived by the Iris pollinators as a single bilaterally symmetrical flower. Apart from the stamens, all petaloid floral organs are preferentially involved in advertising rewards to potential pollinators. Here we used the methods of geometric mo

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PEREZ, ALAIN. "A PHYSICAL MODEL OF THE WRIST DYNAMICS." Journal of Biological Systems 03, no. 04 (1995): 1245–55. http://dx.doi.org/10.1142/s0218339095001106.

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The wrist articulation represents one of the most complex mechanical system of the human body. It is composed of eight bones rolling and sliding along their surface and along the faces of the five metacarpals of the hand and the two bones of the arm. The wrist dynamics is however fundamental for the hand movement, but it is so complex that it still remains incompletely explored. This work is part of a new concept of Computer Assisted Surgery, which consists in developing computer models to perfect surgery acts by predicting their consequences. The physical wrist dynamics model is based first o

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Meyer, Aurelien G. "Measuring Simplified Pore-Throat Angularity Using Automated Mathematical Morphology." SPE Journal 24, no. 01 (2018): 243–53. http://dx.doi.org/10.2118/194193-pa.

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Summary Fluid flow in sedimentary rocks is controlled mainly by the morphology of pore-connecting throats. Pore throats (PTs) typically exhibit diverse converging/diverging morphologies such as biconic, parabolic, or hyperbolic geometries. These different geometries are defined by variable opening angle, or angularity, between the throat walls from the narrowest point of the throat toward the pore body. Importantly, each of these geometries imposes different constraints on fluid flow. However, current pore-level flow models usually favor simple cylindrical or biconic throat morphologies, in pa

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