bluuebunny/crossref_metadata_2025_split huggingface dataset:
VI Міжнародна науково-практична конференція “Проблеми координації воєнно-технічної та оборонно-промислової політики в Україні. Перспективи розвитку озброєння та військової техніки”: Основні підсумки
Authors: Борохвостов В. К. 
Published: April 2019

VI Міжнародна науково-практична конференція “Проблеми координації воєнно-технічної та оборонно-промислової політики в Україні. Перспективи розвитку озброєння та військової техніки”: Основні підсумки
Аспекти існуючих документів оборонного планування щодо пошуку шляхів оснащення озброєнням військових формувань
Authors: Borokhvostov I. V. , Bilokur M. O. 
Published: April 2019

Проаналізована існуюча система оборонного планування та зміни, які проведені в новому циклі. Здійснений пошук зв’язків, що пов'язані з такими змінами та впливом на шляхи оснащення озброєнням військових формувань.Побудовано матрицю, яка пов’язує суб’єкти та документи оборонного планування. Досліджено наявність наукового обґрунтування у схвалених нормативно-правових актах, які спрямовані на зміцнення національної безпеки. Виявлені неузгодження між документами оборонного планування та їх можливого негативного впливу на гармонізацію законодавства України до норм і правил ЄС, для проведення системних реформ, до рівня, прийнятного для членства в НАТО. В площині забезпечення національної безпеки вироблені відповідні пропозиції.
The Sloan Digital Sky Survey Reverberation Mapping Project: Sample Characterization
Authors: Shen Yue , Hall Patrick B. , Horne Keith , Zhu Guangtun , McGreer Ian , Simm Torben , Trump Jonathan R. , Kinemuchi Karen , Brandt W. N. , Green Paul J. , Grier C. J. , Guo Hengxiao , Ho Luis C. , Homayouni Yasaman , Jiang Linhua , Li Jennifer I-Hsiu , Morganson Eric , Petitjean Patrick , Richards Gordon T. , Schneider Donald P. , Starkey D. A. , Wang Shu , Chambers Ken , Kaiser Nick , Kudritzki Rolf-Peter , Magnier Eugene , Waters Christopher 
Published: April 2019

Abstract
We present a detailed characterization of the 849 broad-line quasars from the Sloan Digital Sky Survey Reverberation Mapping (SDSS-RM) project. Our quasar sample covers a redshift range of 0.1 < z < 4.5 and is flux-limited to i
PSF < 21.7 without any other cuts on quasar properties. The main sample characterization includes: (1) spectral measurements of the continuum and broad emission lines for individual objects from the coadded first-season spectroscopy in 2014, (2) identification of broad and narrow absorption lines in the spectra, and (3) optical variability properties for continuum and broad lines from multi-epoch spectroscopy. We provide improved systemic redshift estimates for all quasars and demonstrate the effects of the signal-to-noise ratio on the spectral measurements. We compile measured properties for all 849 quasars along with supplemental multi-wavelength data for subsets of our sample from other surveys. The SDSS-RM sample probes a diverse range in quasar properties and shows well-detected continuum and broad-line variability for many objects from first-season monitoring data. The compiled properties serve as the benchmark for follow-up work based on SDSS-RM data. The spectral fitting tools are made public along with this work.
A Possible ∼20 yr Periodicity in Long-term Optical Photometric and Spectral Variations of the Nearby Radio-quiet Active Galactic Nucleus Ark 120
Authors: Li Yan-Rong , Wang Jian-Min , Zhang Zhi-Xiang , Wang Kai , Huang Ying-Ke , Lu Kai-Xing , Hu Chen , Du Pu , Bon Edi , Ho Luis C. , Bai Jin-Ming , Bian Wei-Hao , Yuan Ye-Fei , Winkler Hartmut , Denissyuk Eduard K. , Valiullin Rashit R. , Bon Nataša , Popović Luka Č. 
Published: April 2019

Abstract
We study the long-term variability in the optical monitoring database of Ark 120, a nearby radio-quiet active galactic nucleus (AGN) at a distance of 143 Mpc (z = 0.03271). We compiled the historical archival photometric and spectroscopic data since 1974 and conducted a new two-year monitoring campaign in 2015–2017, resulting in a total temporal baseline over four decades. The long-term variations in the optical continuum exhibit a wave-like pattern and the Hβ integrated flux series varies with a similar behavior. The broad Hβ profiles have asymmetric double peaks, which change strongly with time and tend to merge into a single peak during some epochs. The period in the optical continuum determined from various period-search methods is about 20 yr, and the estimated false alarm probability with null hypothesis simulations is about 1 × 10−3. The overall variations of the broad Hβ profiles also follow the same period. However, the present database only covers two cycles of the suggested period, which strongly encourages continued monitoring to track more cycles and confirm the periodicity. Nevertheless, in light of the possible periodicity and the complicated Hβ profile, Ark 120 is one candidate of the nearest radio-quiet AGNs with possible periodic variability, and it is thereby a potential candidate host for a sub-parsec supermassive black hole binary.
Breezing through the Space Environment of Barnard’s Star b
Authors: Alvarado-Gómez Julián D. , Garraffo Cecilia , Drake Jeremy J. , Brown Benjamin P. , Oishi Jeffrey S. , Moschou Sofia P. , Cohen Ofer 
Published: April 2019

Abstract
A physically realistic stellar wind model based on Alfvén wave dissipation has been used to simulate the wind from Barnard’s Star and to estimate the conditions at the location of its recently discovered planetary companion. Such models require knowledge of the stellar surface magnetic field that is currently unknown for Barnard’s Star. We circumvent this by considering the observed field distributions of three different stars that constitute admissible magnetic proxies of this object. Under these considerations, Barnard’s Star b experiences less intense wind pressure than the much more close-in planet Proxima b and the planets of the TRAPPIST-1 system. The milder wind conditions are more a result of its much greater orbital distance rather than in differences in the surface magnetic field strengths of the host stars. The dynamic pressure experienced by the planet is comparable to present-day Earth values, but it can undergo variations by factors of several during current sheet crossings in each orbit. The magnetospause standoff distance would be ∼20%–40% smaller than that of the Earth for an equivalent planetary magnetic field strength.
ASSESSMENT OF THE ACCURACY OF THREE TECHNIQUES TO PREDICT LEG LENGTH DISCREPANCY
Authors: Smith David J , Zindrick Michael R , Lambert Ross W , Millar Edward A 
Published: April 2019

ABSTRACT: Three techniques to predict leg length discrepancy were applied to a series of 50 patients with leg length inequality. The methods of Green and Anderson, the Moseley Chart, and a program written by the authors, designed to be run on a relatively inexpensive programmable calculator, were used.
The data processed on the calculator produced slightly more accurate results than the Moseley Chart, though not statistically significant. The Green and Anderson technique resulted in the largest errors.
Biomechanical Analysis of Subclinical Keratoconus With Normal Topographic, Topometric, and Tomographic Findings
Authors: Koc Mustafa , Aydemir Emre , Tekin Kemal , Inanc Merve , Kosekahya Pinar , Kiziltoprak Hasan 
Published: April 2019

PURPOSE:
To investigate the corneal biomechanical responses of subclinical keratoconus with normal topographic, topometric, and tomographic findings.

METHODS:
In this prospective observational study, the study group was selected from patients with clinically evident keratoconus in one eye and subclinical keratoconus with normal topographic, topometric, and tomographic findings in the fellow eye. The control group was selected from candidates for contact lens use. The biomechanical analyses were performed using the Corvis ST (Oculus Optikgeräte, Wetzlar, Germany). The following parameters were analyzed: A1 velocity, A2 velocity, A1 length, A2 length, deformation amplitude ratio, stiffness parameter at the first applanation, Corvis Biomechanical Index, and Tomographic and Biomechanical Index (TBI).

RESULTS:

The study group consisted of 21 patients (10 men and 11 women; mean age: 27.7 ± 6.9 years), and the control group consisted of 35 patients (17 men and 18 women; mean age: 26.1 ± 5.8 years). No significant differences were found between the eyes with subclinical keratoconus and normal eyes in corrected distance visual acuity and the topographic, topometric, and tomographic parameters (
P
> .05). Significant differences were found in the values of A2 length, A1 velocity, A2 velocity, and TBI between the subclinical keratoconus group and the control group (
P
< .05). In distinguishing eyes with subclinical keratoconus from normal eyes, the TBI showed the highest area under the curve (0.790; cut-off: 0.29; sensitivity: 67%; specificity: 86%) in the receiver operating characteristic analysis.

CONCLUSIONS:
Biomechanical analysis with the Corvis ST may be used as a complementary diagnostic method in detecting subclinical keratoconus.

[
J Refract Surg
. 2019;35(4):247–252.]
Cd2+ + Cr6+ causes toxic effects on chromosomal development of microspore in Carthamus tinctorius
Authors: Mittal Neha , Srivastava Anand Kumar 
Published: April 2019

AbstractIntra-category hybrids of Carthamus tinctorius were analyzed for the genetic toxicity in detail for effect of Cd2+ + Cr6+ on reproductive biology of Carthamus tinctorius. Five partially tolerant and five non-tolerant accessions of Carthamus tinctorius after screening were crossed to produce intra-category hybrid. These two heavy metals in combination influenced antagonistically first as well as second meiotic divisions inducing various kinds of anomalies and reduced the number of pollen grains per anther and significantly increased pollen sterility. A differential response for the amount of meiotic irregularity was recorded between different treated sets of hybrids in (Cd + Cr) treated sets. This could be due to differential response of the genotypes for the same concentration of (Cd + Cr). These two heavy metals in combination reduced the number of pollen grains per anther and significantly increased pollen sterility.
Rhetorical Movement, Vulnerability, and Higher Education
Authors: Bernard-Donals Michael 
Published: April 2019

ABSTRACTMobility is the engine that makes rhetoric work. It's integral to rhetoric itself and yet is also potentially destabilizing of both human subjectivity and of the institutions—including higher education—in which we reside. This essay defines rhetoric's mobility by considering Burke's action-motion pair, Giorgio Agamben's stasis, and Deleuze and Guattari's nomadism, taking account of how rhetoric moves us, and how we move, rhetorically, in and amid institutions. Rhetorical movement has less to do with movement from here to there and more to do with flux, disturbance, and—potentially—vulnerability and violence. This essay takes up this premise about rhetoric's mobility—as disturbance, potential, “more”—in order to understand what it would mean to deploy rhetoric in discussions about the future of higher education.
Synthesis, Characterization, Antifungal and Antibacterial Activities of Novel Amide Derivatives of 1,3-Dioxolane
Authors: Begum Zahra , Khan Momin , Khan Sher Wali , Imran Muhammad , Rehman Noor , Umar Muhammad Naveed , Kamil Atif , Muhammad Turghun 
Published: April 2019

L-Tartaric acid which is chiral compound and commercially available, was converted into 1,3-dioxolane. In the synthetic sequence, 1,3-dioxolane was first formed via protection and partial hydrolysis of L-tartaric acid. Treatment with altered substituted aromatic amines, 1,3-dioxolane gave the desired amides i.e. ethyl 2,2-dimethyl-5-(phenylcarbamoyl)-1,3-dioxolane-4-carboxylate 3a,
2-(4-(ethoxycarbonyl)-2,2-dimethyl-1,3-dioxolane-5-carboxamido)benzoic acid 3b, ethyl
5-(4-iodophenylcarbamoyl)-2,2-dimethyl-1,3-dioxolane-4-carboxylate 3c, ethyl
5-(2-chlorophenylcarbamoyl)-2,2-dimethyl-1,3-dioxolane-4-carboxylate 3d and ethyl
5-(2,4-dichlorophenylcarbamoyl)-2,2-dimethyl-1,3-dioxolane-4-carboxylate 3e. These chiral derivatives were purified through column chromatographic technique and characterized by different spectroscopic techniques i.e IR, 1H NMR, 13C NMR and EIMS. The antimicrobial activities of these compounds were determined at different concentrations against different strains of bacteria and fungi.
CFD Modeling and Validation of Tracer Gas Dispersion to Evaluate Self-pollution in School Buses
Authors: Luna Guevara , Alejandro Fredy , Luna Guevara , Andrés Marco , Cerón Belalcázar , Carlos Luis 
Published: April 2019

Abstract
The exhaust gases expelled from the tailpipe during the transit of the buses are composed by different pollutants, each of them dangerous to the human health in different ways. Self-pollution has been detected as a phenomenon related with the passengers exposition to pollutants inside transport buses during their travels. The emissions from the tailpipe make their way to the cabin of the bus, exposing the passengers to toxic gases and particulate matter during the whole time of the trip they are making. The quantitative and detailed modeling of the pollutants in-cabin is important due to the sensitive nature of the children population to respiratory disease related to air pollution. This study assesses self-pollution in school buses using CFD modeling, this is achieved by simulating the dispersion of a tracer gas Sulfur Hexa-Fluoride (SF6) inside and outside the bus. Two previous studies datasets were used to validate the CFD model performance, and accuracy in its capacity to quantitatively describe the phenomenon. The CFD model developed and validated considered the turbulence through the k-epsi-lon realizable model. The system was considered as a multicomponent single-eulerian-phase flow with the “species to transport” model. Transient formulation and energy were implemented. Mesh was optimized to polyhedral elements, reducing considerably the simulation time by 35%, and mesh size to 25%. The model was able to determine the behavior of the tailpipe emissions and the self-pollution phenomenon into the bus, showing that the highest concentrations (and therefore the maximum exposure) are located in the rear part of the bus. Validation of the CFD results with previous experimental measures and modeling results, reported in two previous studies, determined an error of 12% and 17% for the concentrations outside and inside the bus respectively, correlation coefficient (R2) values between 0.5 and 0.9 were obtained between CFD results for SF6 concentrations and validation dataset.
Du canot à glace sur le Saint-Laurent au parapluie de berger des Pyrénées : les inventaires du patrimoine culturel immatériel au Québec et en Aquitaine
Authors: Heiniger-Castéret Patricia , Lamothe Mathilde 
Published: April 2019

Avec le projet d’Inventaire des ressources ethnologiques du patrimoine immatériel (IREPI) débuté en 2003-2004, le Québec figure parmi les pionniers à mener un inventaire du patrimoine culturel immatériel sur son territoire. Sélectionnant des personnes-ressources ou « porteurs de patrimoine », la Chaire de recherche du Canada du patrimoine ethnologique de l’Université Laval a développé une méthodologie alliant des techniques d’entretien et des techniques audiovisuelles pour mener des enquêtes de terrain. Ces données collectées sont valorisées par le biais des nouvelles technologies en créant un inventaire multimédia sur internet, et non par la méthode « classique » d’un simple inventaire papier ou par fiche. En 2006, la France se lance dans cette entreprise en s’inspirant de la méthodologie utilisée au Québec. L’une des opérations-pilotes, menée en Aquitaine, se tourne également vers les outils audiovisuels pour mettre en image l’inventaire du patrimoine culturel immatériel, en suivant une méthode de recherche alliant démarche empirique, fiches d’inventaire (description textuelle et réalisation de court-métrages) et valorisation sous forme d’exposition physique et virtuelle. Si les méthodes d’investigation pensées sur le mode ethnologique semblent similaires, ces inventaires émergent dans un contexte historique, social et politique particulier qui les façonne et les modèle en fonction de la rhétorique patrimoniale ou du cadre institutionnel et juridique en vigueur de chaque côté de l’Atlantique. Les problèmes de temporalités du travail d’enquête, de conservation et d’exploitation des données collectées, de « regard patrimonial » et de sa construction sont également inhérents à ces projets de recherche appliquée.
La construction d’une communauté interprofessionnelle interne à un établissement scolaire suisse romand
Authors: Rebetez Frédérique 
Published: April 2019

Cette étude de cas a cherché à comprendre comment des enseignant⋅e⋅s apprennent à construire une communauté interprofessionnelle interne à un établissement scolaire. Quatre dimensions ont été considérées : le scénario, les interactions, le climat d’apprentissage et l’interdépendance entre les professionnel⋅le⋅s. Cette recherche a mis en évidence que la construction d’une communauté ne repose pas sur l’injonction de collaborer par la direction, mais demande des objets d’apprentissage à portée collective impliquant une interdépendance entre les membres de la communauté, suppose la possibilité de se côtoyer et de partager des espaces de travail, et questionne le coeur de métier et le rôle des professionnel⋅le⋅s.
La gestion des tensions organisationnelles dans les coopératives multisociétaires à vocation sociale : le cas d’une Société Coopérative d’Intérêt Collectif dans le secteur du logement social
Authors: Maignan Marion , Arnaud Charlène , Chateau Terrisse Pascale 
Published: April 2019

Cette recherche explore la nature et la gestion des tensions au sein d’une coopérative multisociétaire à vocation sociale (CMSVS). Une analyse de la littérature rappelle les tensions organisationnelles auxquelles sont soumises les CMSVS. La méthodologie déployée consiste en une étude de cas unique, s’appuyant sur une analyse de contenu thématique des entretiens semi-directifs réalisés au sein de la coopérative étudiée. Les résultats relatifs à la caractérisation et à la gestion des tensions existantes sont présentés et discutés. Ils analysent le rôle d’un statut juridique intégrateur (la SCIC) dans la gestion des tensions. Ils proposent une nouvelle représentation des CMSVS comme noeuds de tensions.
La transition des individus par des épisodes de pauvreté : de l’ajustement de la consommation à la reconfiguration identitaire
Authors: Amine Abdelmajid , Toumi Alia 
Published: April 2019

Cette recherche explore les stratégies d’ajustement de la consommation mises en oeuvre par les individus traversant des épisodes de pauvreté ainsi que les arrangements identitaires à l’oeuvre lors de ces transitions. Nos résultats montrent que ces individus déploient, outre les stratégies d’ajustement mobilisées par les consommateurs « durablement pauvres », des stratégies d’émancipation du marché reposant sur la résistance à la consommation et l’adoption de comportements déviants. Ces adaptations de la consommation se doublent d’accommodements identitaires permettant d’assurer une congruence du soi avec la situation précaire vécue. Enfin, des implications sont dressées en direction du marché, des pouvoirs publics et des organisations de la société civile en vue d’inclure ces consommateurs transitoirement pauvres.
Use of Information and Communication Technology by Small and Medium Enterprises in Ogun State, Nigeria
Authors: Oyebiyi Oyediran George 
Published: April 2019

Small and medium enterprises have emerged as promising opportunities to eliminate and reduce unemployment globally. Increasing levels of technological advancement has revolutionized the dynamics of the business terrain. However, SMEs in developing countries are yet to fully explore the benefits of Information and Communications Technology.
Survey data was collected from 75 SME ICT users and non-users in Abeokuta and Otta through a structured questionnaire using stratified random sampling technique.
Results of regression analysis revealed that demographic variable (Staff Strength) significantly influences use of ICT among SMEs while SME service delivery had no influence on ICT use. Also, analysis of variance on the categories of SMEs was not a determinant factor on the use of ICT.
The outcome of this study has implications for owners/ managers of SMEs, stakeholders, government and academic researchers in developing countries as it can provide patterns to help bridge the existing digital divide especially among Nigerian SMEs.
Encountering the Internal Persecutor
Authors: O'Connor John 
Published: April 2019

Encountering the other is inevitably central to therapeutic work. This paper explores the challenges and possibilities of encountering the internal persecutor within the therapist, the patient, and within the clinical dyad. This encounter is often terrifying as we meet not only the other in the form of our patients and the different cultural groupings with which we engage, but also the others lying dissociated within us and which are inevitably stirred, and sometimes violently enacted, in the heat of the clinical moment. The temptation to make the other wrong, or to defensively submit, in order to survive the shameful attacks of the persecuting other(s) within us is extremely powerful. However, encounters with such persecutory dynamics can also potentially enable deep transformation in both the therapist and patient. In this paper, I explore these temptations and opportunities. I draw on a range of psychoanalytic, relational and Jungian theoretical perspectives, and include clinical vignettes.
Whakarāpopotonga
Kāore koa, he tūtakitanga taru tangata, te waenga-pū o te mahi haumanu. Ko tā tēnei pepa, he wherawhera i ngā wero me ngā tūpono tūtakitanga i te kaipēhi whakaroto o te kaihaumanu, te tūroro me te tōpū haumanu. I te nuinga o te wā, he tūtakitanga whakawehiwehi tēnei nā te mea ehara ko te hanga taru tangata o ā tātau tūroro me ngā rōpū ahurei rerekē ngā mea tūtaki ai tātau, engari ko ētahi taru tangata e noho wehe ana whakaroto i a tātau ka whakaarahia ake me te aha i ētahi wā ka haukekehia i te ohorerehanga o te wā. Tino kaha te tahu ki te uta i te hē ki taru tangata, ki te aata whakaata hauraro rānei kia puta ai i ngā ngau a taru. Ahakoa rā, he huarahi whakakaha whakaaro hōhonu rerekē mō te kaiwhakaora me te tūroro ēnei momo tūtakitanga. Ka tirohia ēnei tahu ēnei tūponohanga i roto i tēnei tuhinga. Ka kūmea mai ngā tirohanga tātarihanga mātauranga matehinengaro maha, tā Hūngiana tirohanga, me ētahi tuhinga haumanu poto.
Refraction and Attenuation in Troposphere
Authors: Allnutt Jeremy E. 
Published: November 2024

Abstract
Where two dissimilar media form a common boundary, the different refractive indices of the media will cause the signal direction to diverge from its path if the incident direction is not normal to the boundary. This is called refraction.
The average refractive index of a medium is called the bulk refractive index, and it affects the average direction of the electromagnetic energy.
In addition to changing the direction of travel of an electromagnetic signal and/or causing scintillations, a medium can both extract energy from a signal passing through it and alter the orientation sense of the electric vector (the polarization) of the signal as it passes through. The loss of energy is called attenuation, and the change in polarization sense is generally referred to as depolarization.