bluuebunny/crossref_metadata_2025 huggingface dataset:
Phase modulators with tunability in wavefronts and optical axes originating from anisotropic molecular tilts under symmetric electric field II: experiments
Authors: Wang Yu-Jen , Lin Yi-Hsin , Cakmakci Ozan , Reshetnyak Victor
Published: March 2020

We demonstrate, for the first time, an electrically-tunable and physically-planar freeform optical element made up of nematic liquid crystals (LCs). Continued on numerical study in previous paper (Part I), experimental results here show that it is possible to break the rotational symmetry of the wavefront through the use of uneven tilt angles of the LC molecules even though the electric potential is rotationally symmetric. Our optical element offers the ability to electrically tune the direction of the optical axis, the wavefront deviation, as well as the Zernike polynomials for general descriptions of wavefronts. Corresponding Zernike coefficients of a Zernike polynomial that are related to defocus and spherical aberration, which can be adjusted individually or together. The minimum wavefront deviation is >λ/6. The Zernike coefficients related to coma aberration or the tilt of the optical axis are also electrically tunable. By incorporating our LC phase modulator with tunability of freeform wavefronts into a simple reflective optical system, we demonstrate convincing image performance for off-axis image aberration correction. This approach will inspire further development and design of LC optical elements for applications, such as hyperspectral imagers in aerospace optics, augmented reality, virtual reality, quantum information systems, innovative miniaturized reflective telescopic systems for astrophysics, planetary science, and earth science.
Multi-point spectroscopic gas sensing based on coherent FMCW interferometry
Authors: Lou Xiutao , Feng Yabo , Chen Chen , Dong Yongkang
Published: March 2020

We present an innovative spectroscopic method based on coherent optical frequency-modulated continuous-wave (FMCW) interferometry that can realize multi-point gas detection with high spatial resolution, high sensitivity, and high selectivity. This method takes full advantage of the intrinsic capability of spatial localization of the coherent FMCW, meanwhile efficiently decodes the spectral information from the reflected optical signals. Gas sensors are deployed by adopting bus topology, i.e., distributed along a single backbone fiber in the measurement arm of the FMCW interferometer. For validation, a multi-point acetylene gas sensing system with three sensing nodes is experimentally demonstrated. The transmission spectra of the three gas sensors are accurately extracted, and their corresponding gas concentrations are efficiently retrieved with a low crosstalk below -30 dB. The demonstrated system achieves a sensitivity of 55 ppm (noise equivalent absorbance of 0.004) over a distance of 52 m, with a sensing spatial resolution of 30 cm and a spectral resolution of 0.5 GHz. Our proposed method promotes a novel way for the development of multi-point spectroscopic gas sensing systems for challenging applications such as gas leakage detection and gas emission monitoring, where spatially resolved chemical analysis over a large area is required.
Direct generation of the lowest-order vortex beam using a spot defect mirror in the ultraviolet region
Authors: Uesugi Yuuki , Kozawa Yuichi , Sato Shunichi
Published: March 2020

The creation of ultraviolet optical vortex beams with the topological charge of

|
l
|
=
1

at the wavelength of 325 nm was demonstrated from a He–Cd metal vapor laser with a spot defect mirror. The measured

M

2

factor was close to the theoretical value of two of the

L
G

01

Laguerre–Gaussian mode. Some interference experiments showed that the obtained vortex beams were stable enough for practical applications such as holographic lithography.
Los debates del movimiento feminista ante el proyecto constitucional y la Constitución: de la unión a la separación
Authors: Gahete Muñoz Soraya
Published: March 2020

La muerte de Francisco Franco (noviembre de 1975) facilitó el desarrollo de una serie de cambios que venían gestándose tiempo atrás. En la nueva etapa que se abrió tras la muerte del dictador, el movimiento feminista luchó por que las mujeres fueran reconocidas como sujetos de derechos en igualdad con los hombres. En este artículo se analizarán, por un lado, las propuestas del movimiento feminista para que fuesen incluidas en la nueva Constitución y, por otro lado, la influencia o no que este movimiento tuvo en la elaboración del texto constitucional.
Uno para todos y todos para uno. Athletic Bilbao: singularidad deportiva, transversalidad de la identidad
Authors: Gutiérrez-Chico Fernando
Published: March 2020

Este artículo profundiza en el estudio antropológico de la construcción de identidad en torno al equipo de fútbol del Athletic Bilbao. Su singular “filosofía”, marcada por la defensa de “lo local”, sigue vigente en un contexto donde el balompié está cada vez más globalizado. La investigación está basada en una serie de entrevistas semiestructuradas a 25 aficionados del equipo, residentes en Castilla y León (nacidos y no nacidos en el País Vasco), y aborda los motivos de adhesión y pertenencia al club, su interpretación de la política de jugadores y su posicionamiento ante el creciente mercantilismo que opera en el fútbol. La pesquisa muestra que las vinculaciones al Athletic Bilbao vienen marcadas por un modelo tradicional, en el que los clubes actúan como representantes de su entorno, combinado con una apreciación de “lo propio” como baluarte frente a las lógicas mercantiles que imperan en el balompié moderno. Consecuentemente, la identidad del Athletic Bilbao se encuentra marcada por una transversalidad de interpretaciones que los aficionados destacarán en función del momento y las circunstancias.
Presentación. Nuevas desapariciones, nuevos espacios
Authors: Colombo Pamela
Published: March 2020

Frente a la emergencia de nuevas formas de desaparición en el siglo xxi, nuevos espacios aparecen asociados (por ejemplo, el desierto de Arizona-Sonora que pareciera tragarse a aquellos lo atraviesan como si fuera una «máquina de matar» o el mar Mediterráneo donde los Estados europeos «dejan morir» a los migrantes). Los nuevos tipos de desaparición no sólo presentan dinámicas particulares respecto a las desapariciones que ya conocíamos, sino que el rol mismo del espacio en ellas pareciera haberse visto conmovido de manera profunda. La novedad que trae este número especial consiste en proponer una discusión sobre el rol que juega el espacio en la emergencia de nuevas formas de desaparición e indagar, también, sobre «viejas desapariciones» pero a partir de espacios hasta ahora han sido poco analizados con relación a la desaparición forzada de personas.
Analyzing and evaluation of vintage logs for an integrated reservoir characterization and field development strategy
Authors: Taj-Liad Abdulmalik
Published: March 2020

Obom field is a mature field in the Greater Ughelli onshore Niger delta, which has been producing since 1967. The field is a simple rollover structure elongated in the east-west direction, and bounded to the north by an east-west trending, south-hading, main growth fault. The reservoirs are made mainly of channel/shoreface complexes. The closures are faults assisted dip closures in shallow reservoir and dip assisted fault closure in deeper sections. As a huge producing field with some potential for further sustainable production, field monitoring is therefore important in the identification of areas of unproduced hydrocarbon. The aim of this study is to evaluate and train logs which will be an input into other discipline for an integrated field development study. Petrophysical parameters were evaluated from logs and plots of shaly sand saturation equations (Waxman smith and Normalized Qv method) were compared to water saturation from drainage capillary pressure and a good match was observed. Due to some radioactive reservoir levels without density and neutron logs, volume of shale was evaluated from both gamma ray (GR) and spontaneous potential (SP) log which was later spliced with data editor to give a final volume of shale . Furthermore, paucity of density logs drove the decision to use neural network for density log training from SP logs- using density SP logs would capture the radioactive level - and TVDSS which went into Seismic to well tie for horizon interpretation. With the aid of python scripting, the flow zone indicator (FZI) workflow was used in evaluating the permeability and hydrocarbon correction on porosity was also done. The use of python scripting saved computing time by more than 70% due to the numbers of wells in the field - fourteen wells. This study demonstrates the effectiveness of integrating trained dataset for a field development study. Hence, has provided a framework for future prediction of reservoir performance and production behavior of the field.
Association of traits in Ethiopian fenugreek (Trigonella foenum-graecum L.) genotypes regarding to seed yield by using phenotypic data
Authors: ABTEW Yimam  ALI , ABATE Alemu
Published: March 2020

Shortage of information on association of traits is one of the problems in fenugreek productivity. Field experiment was implemented at Jamma district of South Wollo Administrative Zone of Amhara National Regional State, in 2018/19 main rainy season to examine the nature and extent of correlation, direct and indirect effects among yield and yield related traits. Sixty-two nationally collected fenugreek genotypes along with standard and local checks were evaluated in simple lattice design. Seed yield plot-1 was significantly and positively correlated to biomass yield-1 (r = 0.5) and harvest index (r = 0.6***) at genotypic level. Seed yield was also significantly and positively correlated with harvesting index (r = 0.6***) and weakly and negatively (r = -0.01) correlated to biomass yield at phenotypic level. Path coefficient analysis revealed that biomass (0.951), harvesting index (0.283) and pod length (-0.163) had contributed the maximum positive and negative direct effect on seed yield respectively, at phenotypic level. At genotypic level biomass yield ha-1 (0.816) and harvesting index (0.930) had contributed strong positive direct effect and plant height (-0.004) had revealed weak negative direct effect.
Dekoracja iluminatorska inkunabułu Inc. I 11 ze zbiorów Biblioteki Raczyńskich. Problem ikonografii i atrybucji
Authors: Wagner Zuzanna
Published: March 2020

W zbiorach Biblioteki Raczyńskich w Poznaniu znajduje się inkunabuł Epistolae św. Hieronima wydrukowany w 1470 roku w mogunckiej oficynie Petera Schöffera (sygn. Inc. I 11). Dzieło to posiada stosunkowo bogatą dekorację iluminatorską, na którą składają się inicjały (rubrykatorskie, filigranowe i iluminowane) oraz floratury z motywami jelenia, dwóch małpek oraz ptaka. Analiza motywów zoomorficznych wykazała ich bezpośrednie powiązanie z treścią książki. Cechy formalne dekoracji iluminatorskiej pozwoliły zaś na uznanie ich wykonawcy za reprezentanta niemieckiej tradycji malarstwa książkowego, być może współpracującego z moguncką oficyną Petera Schöffera. Analogie formalne ze znanym z literatury inkunabułem Inc. 829 z Biblioteki Jagiellońskiej skłaniają jednak do alternatywnej atrybucji – anonimowemu twórcy krakowskiemu (zwanemu Iluminatorem Dekretaliów).
Bibliotekarz – biblioteka – historia
Authors: Wojciechowski Jacek
Published: March 2020

Recenzja. Bibliotekarz – biblioteka – historia, red. Andrzej Wałkówski, Warszawa: Wydawnictwo Naukowe i Edukacyjne Stowarzyszenia Bibliotekarzy Polskich 2018, s. 282. ISBN 978-83-65741-15-8 (Propozycje i materiały)
Edyta Bątkiewicz-Szymanowska, Tytus Działyński (1796–1861)
Authors: Małecka Monika
Published: March 2020

Recenzja. Edyta Bątkiewicz-Szymanowska, Tytus Działyński (1796–1861), Kórnik: Polska Akademia Nauk Biblioteka Kórnicka 2018, ss. 266, [2]. ISBN 978-83-85213-65-9
Carl Gustav Johannsen, Staff-less Libraries. Innovative staffing design
Authors: Andruszko Hanna
Published: March 2020

Recenzja. Carl Gustav Johannsen, Staff-less Libraries. Innovative staffing design, Cambridge, MA, Kidlington: Chandos Publishing 2017, s. 190 (Chandos Information Professional Series, 2052-210X). ISBN 978-0-08-101923-8 (print), 978-0-08-101924-5 (online)
Masowe otwarte kursy online (MOOC) – implikacje dla bibliotek szkół wyższych
Authors: Derfert-Wolf Lidia
Published: March 2020

W artykule przedstawiono rozwój oraz cechy charakterystyczne masowych otwartych kursów online (MOOC). Na podstawie literatury przedmiotu zaprezentowano również tematykę kursów MOOC w kontekście wykorzystania ich przez bibliotekarzy akademickich, zarówno w zakresie rozwoju usług bibliotecznych i współpracy z innymi jednostkami uczelni, jak również w kontekście osobistego rozwoju zawodowego.
Ilustracje w czasopiśmie „Przyjaciel Ludu” – od oświeceniowego encyklopedyzmu do wizualnego kanonu narodowego
Authors: Kłudkiewicz Kamila
Published: March 2020

Wydawany w latach 1834–1849 w Lesznie „Przyjaciel Ludu” zajmuje wyjątkowe miejsce pośród polskich czasopism ilustrowanych pierwszej połowy XIX wieku. Podobnie jak inne periodyki („Magazyn Powszechny”, „Muzeum Domowe”, „Księga Świata”) odwołuje się do wykształconych na zachodzie Europy wzorców tanich czasopism encyklopedycznych. Wyróżnia go jednak duża liczba ilustracji, a przede wszystkim znaczna część reprodukcji poświęconych tematyce polskiej. Ponad 1100 rycin polskich, które pojawiły się w czasopiśmie przez 15 lat jego istnienia, otwiera pole do rozważań na temat genezy i wzorców „Przyjaciela Ludu”, pochodzenia i tematyki jego ilustracji, wreszcie na temat przekształcenia się uniwersalnego, oświeceniowego spojrzenia na kulturę europejską w indywidualne, narodowe wizje przeszłości i teraźniejszości poszczególnych nacji.
Utwory pisane prozą i wierszem, do użytku Towarzystwa Wolnomularzy z Lorient
Authors: Grażyńska Iuliana
Published: March 2020

Znajdujące się obecnie w Collegium Martineum UAM zbiory masońskie wciąż zaskakują swoją unikalnością. W toku ich opracowywania znaleziono niezwykły rękopis XVIII-wieczny przedstawiający spuściznę francuskich pieśni wolnomularskich z okresu panowania Ludwika XV, napisany przez anonimowego autora. W wyniku analizy rękopisu udało się zidentyfikować: okres, kiedy został zapisany, śpiewniki, z których pochodzi większość tekstów, autorów dwóch pieśni i przewidywane miejsce warsztatu jego składania oraz autora 27 cennych rycin, którymi jest ozdobiony rękopis, czyli założyciela słynnej sieci grawerów w Paryżu w XVII wieku. Rękopis zachwyca techniką składania i równocześnie otwiera pole dla historyków muzyki wolnomularskiej do dalszych poszukiwań w zbiorach muzycznych Biblioteki Uniwersyteckiej w Poznaniu.
Intersections of Projections and Slicing Theorems for the Isotropic Grassmannian and the Heisenberg group
Authors: Román-García Fernando
Published: March 2020

This paper studies the Hausdorff dimension of the intersection of isotropic projections of subsets of ℝ2n, as well as dimension of intersections of sets with isotropic planes. It is shown that ifAandBare Borel subsets of ℝ2nof dimension greater than m, then for a positive measure set of isotropic m-planes, the intersection of the images ofAandBunder orthogonal projections onto these planes have positive Hausdorffm-measure. In addition, ifAis a measurable set of Hausdorff dimension greater thanm, then there is a setB⊂ ℝ2nwith dimB⩽msuch that for allx∈ ℝ2n\Bthere is a positive measure set of isotropic m-planes for which the translate byxof the orthogonal complement of each such plane, intersectsAon a set of dimension dimA – m. These results are then applied to obtain analogous results on thenthHeisenberg group.
A proposed algorithm for analysing heart sounds and calculating their time intervals
Authors: Eesee Abdulrahman K. , Qassim Hassan M. , Aziz Mothanna Sh.
Published: March 2020

Heart sounds play a crucial role in the clinical assessment of patients. Stethoscopes are used for detecting heart sounds and diagnosing potential abnormal conditions. However, several parameters of the cardiac sounds cannot be extracted by traditional stethoscopes. This paper presents a proposed algorithm based on peaks detection. Besides its ability of filtering the heart sounds signals, the time intervals of these sounds in addition to the heart rate were calculated by the proposed algorithm in an efficient way. Signals of the heart sounds from two sources were used to evaluate the efficiency of the algorithm. The first source was the data recorded from 14 participants, whereas the second source was the free data set sponsored by PASCAL. The algorithm showed different performance accuracy for detecting the main heart sounds based on the source of the data used in the study. The accuracy was 93.6% when using the data recorded from the first source, whereas it was 76.194% for the data of the second source.
How do CYP2C19*2 and CYP2C19*17 genetic polymorphisms affect the efficacy and safety of diazepam in patients with alcohol withdrawal syndrome?
Authors: Skryabin Valentin Yu , Zastrozhin Mikhail S. , Torrado Marco V. , Grishina Elena A. , Ryzhikova Kristina A. , Shipitsyn Valery V. , Galaktionova Tatiana E. , Sorokin Alexander S. , Bryun Evgeny A. , Sychev Dmitry A.
Published: March 2020

Background

Diazepam is one of the most commonly prescribed tranquilizers for therapy of alcohol withdrawal syndrome (AWS). Despite its popularity, there is currently no precise information on the effect of genetic polymorphisms on its efficacy and safety. The objective of our study was to investigate the effect of CYP2C19*2 and CYP2C19*17 genetic polymorphisms on the efficacy and safety of diazepam in patients with AWS.

Methods

The study was conducted on 30 Russian male patients suffering from the AWS who received diazepam in injections at a dosage of 30.0 mg/day for 5 days. The efficacy and safety assessment was performed using psychometric scales and scales for assessing the severity of adverse drug reactions.

Results

Based on the results of the study, we revealed the differences in the efficacy of therapy in patients with different CYP2C19 681G>A (CYP2C19*2,rs4244285) genotypes: (CYP2C19*1/*1) −8.5 [−15.0; −5.0], (CYP2C19*1/*2andCYP2C19*2/*2) −12.0 [−13.0; −9.0], p = 0.021. The UKU scale scores, which were used to evaluate the safety of therapy, were also different: (CYP2C19*1/*1) 7.0 [6.0; 12.0], (CYP2C19*1/*2andCYP2C19*2/*2) 9.5 [8.0; 11.0], p = 0.009. Patients carrying different CYP2C19 –806C>T (CYP2C19*17,rs12248560) genotypes also demonstrated differences in therapy efficacy and safety rates.

Conclusions

Thus, the effects of CYP2C19*2 and CYP2C19*17 genetic polymorphisms on the efficacy of diazepam were demonstrated.
Diligent profiling of preclinical safety of the silk protein sericin
Authors: Ahsan Farogh , Mahmood Tarique , Siddiqui Mohammed Haris , Usmani Shazia , Bagga Paramdeep , Shamim Arshiya , Srivastav Ritesh Kumar
Published: March 2020

Background

Sericin is a widely used protein in the pharmaceutical industry derived from the silkworm, Bombyx mori, and used for the treatment of various diseases and pathological conditions. It is the main ingredient of the Unani preparation khameera abresham. The study was conducted to evaluate the preclinical toxicity of the silk protein sericin in mice.

Methods

In the acute toxicity study, sericin was administered once orally to different groups of animals at doses of 500, 1000, and 2000 mg/kg. Animals were observed for 14 days. In the sub-acute toxicity study, sericin was administered in mice for 4 weeks in the toxic group at doses of 500, 1000, and 2000 mg/kg, while in the recovery group it was administered for 4 weeks at doses of 500 and 2000 mg/kg followed by 2 weeks of distilled water administration.

Results

In the acute toxicity study, the observed parameters showed no significant difference, and no mortality was reported. In the sub-acute toxicity study, there were no toxicological effects in any of the estimated parameters, while histopathological analysis showed inflammation in vital organs at the dose of 2000 mg/kg.

Conclusions

Results of our acute toxicity study suggest that sericin is safe at all administered doses, while the sub-acute study suggests that the NOAEL (no-observed-adverse-effect level) of sericin is below 2000 mg/kg, at which it can be considered safe.
Transcendental Idealism and the Self-Knowledge Premise
Authors: Tse Chiu Yui Plato
Published: March 2020

The relation between transcendental idealism and philosophical naturalism awaits more careful determination, i. e. whether the issue of their compatibility hinges on their ontological view on the relation between physical and mental phenomena (i. e. whether it is supervenience or emergence) or on their epistemological view on our access to mental content. The aim of this paper is to identify a tension between transcendental idealism and philosophical naturalism, which lies not in their ontological view on the nature of substances, but in their epistemological view on the relation between self-awareness and the first-personal access to mental content. I will first trace the (mis)understanding of transcendental idealism as Berkeleyan idealism to a misinterpretation of the self-knowledge premise in transcendental arguments. I will argue that transcendental idealism is not so much concerned with grounding reality of the external world as with establishing the agential nature of the first-personal perspective of experience, and it has an important implication on the meaning and function of self-awareness in transcendental idealism.
Rule-governed Practices in the Natural World
Authors: Huemer Wolfgang
Published: March 2020

I address the question of whether naturalism can provide adequate means for the scientific study of rules and rule-following behavior. As the term “naturalism” is used in many different ways in the contemporary debate, I will first spell out which version of naturalism I am targeting. Then I will recall a classical argument against naturalism in a version presented by Husserl. In the main part of the paper, I will sketch a conception of rule-following behavior that is influenced by Sellars and Haugeland. I will argue that rule-following is an essential part of human nature and insist in the social dimension of rules. Moreover, I will focus on the often overlooked fact that genuine rule-following behavior requires resilience and presupposes an inclination to calibrate one’s own behavior to that of the other members of the community. Rule-following, I will argue, is possible only for social creatures who follow shared rules, which in turn presupposes a shared (first-person plural) perspective. This implies, however, that our scientific understanding of human nature has to remain incomplete as long as it does not take this perspective, which prima facie seems alien to it, into account.
Plasma matrix metalloproteinase-9 and tissue inhibitor of matrix metalloproteinase-1 as prognostic biomarkers in critically ill patients
Authors: Duda Izabela , Krzych Łukasz , Jędrzejowska-Szypułka Halina , Lewin-Kowalik Joana
Published: March 2020

Matrix metalloproteinase 9 (MMP-9) plays an important role in inflammatory and pathological processes by enabling the inflow of leukocytes to the site of infection or tissue damage. MMP-9 and tissue inhibitor of metalloproteinase 1 (TIMP-1) have been described as potential prognostic biomarkers in various clinical settings. The aim of the study was to evaluate the usefulness of plasma levels of MMP-9 and TIMP-1 as well as the MMP-9/ TIMP-1 ratio in predicting the outcome in patients admitted to the intensive care unit (ICU). The study included 56 critically ill patients with multiple organ failure. Plasma levels of MMP-9 and TIMP-1 were determined on hospitalization day 1, 2, 3 and 7. Nineteen (35.7%) patients died. The level of TIMP-1 was statistically significantly higher on day 1 and 7 of hospitalization in non-survivors, as compared to survivors (p=0.01). A statistically significant positive correlation was found between MMP-9 and TIMP-1. The MMP-9/TIMP-1 ratio was comparable in both groups during of observation (0.62 on day 1). The MMP-9/TIMP-1 ratio was positively correlated with the level of lactate and negatively correlated with platelet count. Likewise, TIMP-1 was positively correlated with the level of lactate. The level of MMP-9 was higher in the non-survivor group only on day 7 of observation. In conclusion, although TIMP-1 and MMP-9 concentrations were higher in non-survivors and the MMP-9/TIMP-1 ratio was related to some parameters of critical illness, further research is needed to verify whether they can serve as reliable biomarkers for early prognostication of ICU patients.
On uniformly fully inert subgroups of abelian groups
Authors: Dardano Ulderico , Dikranjan Dikran , Salce Luigi
Published: March 2020

If H is a subgroup of an abelian group G and φ ∈ End(G), H is called φ-inert (and φ is H-inertial) if φ(H) ∩ H has finite index in the image φ(H). The notion of φ-inert subgroup arose and was investigated in a relevant way in the study of the so called intrinsic entropy of an endomorphism φ, while inertial endo-morphisms (these are endomorphisms that are H-inertial for every subgroup H) were intensively studied by Rinauro and the first named author.

A subgroup H of an abelian group G is said to be fully inert if it is φ-inert for every φ ∈ End(G). This property, inspired by the “dual” notion of inertial endomorphism, has been deeply investigated for many different types of groups G. It has been proved that in some cases all fully inert subgroups of an abelian group G are commensurable with a fully invariant subgroup of G (e.g., when G is free or a direct sum of cyclic p-groups). One can strengthen the notion of fully inert subgroup by defining H to be uniformly fully inert if there exists a positive integer n such that |(H + φH)/H| ≤ n for every φ ∈ End(G). The aim of this paper is to study the uniformly fully inert subgroups of abelian groups. A natural question arising in this investigation is whether such a subgroup is commensurable with a fully invariant subgroup. This paper provides a positive answer to this question for groups belonging to several classes of abelian groups.
A MOF based on a lead(II) 2-oxido-6-methylpyridine-4-carboxylate network
Authors: Tang Long , Fu Yu Pei , Cui Na , Wang Ji Jiang , Hou Xiang Yang , Wang Xiao
Published: March 2020

A new metal-organic framework, [Pb(hmpcaH)2]
n
(1), has been hydrothermally synthesized from Pb(OAc)2 · 3H2O and 2-hydroxy-6-methylpyridine-4-carboxylic acid (hmpcaH2; 2), and characterized by IR spectroscopy, elemental and thermogravimetric analysis, and single-crystal X-ray diffraction. In complex 1, each hmpcaH− ligand represents a three-connected node to combine with the hexacoordinated Pb(II) ions, generating a 3D binodal (3,6)-connected ant network. The crystal structure of 2 was determined. The solid-state fluorescence properties of 1 and 2 were investigated.
Relation entre le stress et la performance au travail : un devis expérimental
Authors: Campbell Mélissa , Gosselin Éric , Tremblay Jean-François , Durivage André
Published: March 2020

Introduction et objectifs – Au cours des dernières décennies, le stress est devenu, tant au sein des organisations que dans la vie quotidienne, un sujet de grand intérêt. Il en est de même pour la performance au travail. Qui plus est, il est possible de répertorier cinq thèses distinctes et compétitives concernant la nature de la relation unissant le stress à la performance au travail. Ainsi, malgré un nombre important d’études sur le sujet, la relation entre ces deux variables demeure ambiguë puisque les observations empiriques ne convergent pas vers une unique nature relationnelle. Cette étude a pour objectif principal d’explorer l’incidence du stress sur la performance au travail et dans un deuxième temps, de vérifier l’impact de la personnalité sur la nature de cette relation. Méthodes – La collecte de données, recueillies par questionnaires autoadministrés ainsi que par des dosages salivaires auprès d’étudiants dans le domaine de la gestion (n=10), a été effectuée dans le cadre d’une étude empirique réalisée en laboratoire. Résultats – Les analyses statistiques permettent d’observer des liens significatifs, sous certaines conditions, entre le stress et la performance. De plus, le facteur de personnalité de l’agréabilité aurait un effet sur le différentiel de la sous-dimension de la performance « résolution de problèmes », et la stabilité émotionnelle aurait un effet sur le différentiel de la sous-dimension de la performance « orientation vers le service à la clientèle ». Conclusion – Ces observations démontrent la nécessité de poursuivre les recherches et d’explorer la relation stress/performance [...]
La genèse organisationnelle de la souffrance au travail : cadrage conceptuel
Authors: Beaudry Catherine , Gagnon Mélanie
Published: March 2020

Les employeurs se montrent de plus en plus préoccupés par le bien-être au travail du personnel pour diverses raisons. Les conséquences négatives associées au mal-être au travail alimentent cet intérêt pour la question, au nombre desquelles sont recensés l’absentéisme et le présentéisme, la diminution de la performance organisationnelle, une hausse des conflits en milieu de travail ainsi que de mauvaises relations avec la clientèle et une augmentation du taux de roulement. Or, avoir la volonté d’améliorer le bien-être au travail nécessite une réflexion profonde sur les sources de la souffrance au travail. Le présent article propose, sur la base de la littérature existante en la matière, de se doter d’un cadre conceptuel pour mieux cibler et comprendre ces sources de souffrance. Il s’efforce donc de mettre en évidence les facteurs organisationnels contribuant à la souffrance au travail. Bien que non exhaustives, les sources de souffrance variant en fonction des individus, l’analyse de quatre catégories de facteurs se veut féconde : l’organisation du travail, les conditions de travail, les relations interpersonnelles et le déséquilibre entre les contributions et les rétributions. C’est en décelant les facteurs de souffrance en milieu de travail que les responsables des ressources humaines en organisation pourront déployer des pratiques de gestion favorisant le bien-être.
L' activité réflexive en recherche collaborative
Authors: Bednarz Nadine , Bacon Lily , Lajoie Caroline à , Maheux Jean-François , Saboya Mireille
Published: March 2020

Plusieurs études ont porté sur la démarche de recherche collaborative. Certaines questions liées à l’activité réflexive et à la complexité de l’imbrication des voix des acteurs, dans cette zone interprétative partagée où se co-constituent les données de la recherche, demeurent cependant peu explorées. Nous abordons cette complexité dans le cadre d’un projet impliquant chercheurs et conseillers pédagogiques en mathématiques au primaire. Une analyse s’appuyant sur le concept de polyphonie de Bakhtine (1970) nous permet de voir comment l’activité réflexive conduit à des construits dialogiques concernant la résolution de problèmes en contexte d’enseignement et l’accompagnement des enseignants par les conseillers pédagogiques.
Recherche collaborative
Authors: Aurousseau Emmanuelle , Jacob Elisabeth , Laplume Joanie , Coté Catherine
Published: March 2020

Dans le cadre de l’ACFAS 2018, une communication portant sur les défis de la recherche collaborative de deux doctorantes et deux étudiantes à la maîtrise a été présentée. Dans la perspective qui avait animé ce dernier colloque, nous avons été sollicitées pour écrire un article permettant de témoigner de ces différentes expériences de chercheuses en herbe et de les mettre en dialogue avec le point de vue de chercheurs expérimentés afin d’en dégager des défis important pour tout chercheur s’engageant dans la voie de la recherche collaborative. Ce sont ces défis à relever dont il sera question dans cet article.
Éditorial
Authors: Barry Souleymane , Murray Nathalie
Published: March 2020

Les recherches participatives (RP) ne sont plus à définir ou présenter (Anadon, 2007 ; Bednarz, 2013). Elles sont parvenues à s’imposer dans l’univers des recherches en sciences humaines et sociales comme une autre façon pertinente/valable de faire de la recherche qui tient compte des contextes des acteurs ou participants et de leurs perspectives (Bednarz, 2015 ; Morissette, et al., 2017), et ce, selon la spécificité des formes que peuvent prendre ces recherches (recherche-action, recherche collaborative, recherche partenariale, etc.). On peut, sans risque de se tromper, parler d’une maturité acquise par ce type de recherches conduites « avec » plutôt que « sur » les praticiens, qu’appelait de ses vœux Lieberman (1986). Cette maturité des RP appelle à une réflexion synthèse régulière sur leurs contributions théoriques et méthodologiques majeures ainsi que sur leurs nouveaux défis. C’est dans cet ordre d’idées que nous avons organisé, les 7 et 8 mai 2018, dans le cadre du congrès annuel de l’ACFAS qui se tenait à Chicoutimi, un colloque bilan réunissant des chercheurs d’horizons divers pour faire ensemble le point sur les aspects les plus importants des RP. Pour l’essentiel et sans être exhaustif, le bilan auquel nous avons convié les conférenciers qui, pour la plupart, ont accepté de contribuer à ce numéro thématique.
Resolving the Spatial Profile of Figure Enhancement in Human V1 through Population Receptive Field Modeling
Authors: Poltoratski Sonia , Tong Frank
Published: March 2020

The detection and segmentation of meaningful figures from their background is one of the primary functions of vision. While work in nonhuman primates has implicated early visual mechanisms in this figure–ground modulation, neuroimaging in humans has instead largely ascribed the processing of figures and objects to higher stages of the visual hierarchy. Here, we used high-field fMRI at 7 Tesla to measure BOLD responses to task-irrelevant orientation-defined figures in human early visual cortex (N= 6, four females). We used a novel population receptive field mapping-based approach to resolve the spatial profiles of two constituent mechanisms of figure–ground modulation: a local boundary response, and a further enhancement spanning the full extent of the figure region that is driven by global differences in features. Reconstructing the distinct spatial profiles of these effects reveals that figure enhancement modulates responses in human early visual cortex in a manner consistent with a mechanism of automatic, contextually driven feedback from higher visual areas.

SIGNIFICANCE STATEMENTA core function of the visual system is to parse complex 2D input into meaningful figures. We do so constantly and seamlessly, both by processing information about visible edges and by analyzing large-scale differences between figure and background. While influential neurophysiology work has characterized an intriguing mechanism that enhances V1 responses to perceptual figures, we have a poor understanding of how the early visual system contributes to figure–ground processing in humans. Here, we use advanced computational analysis methods and high-field human fMRI data to resolve the distinct spatial profiles of local edge and global figure enhancement in the early visual system (V1 and LGN); the latter is distinct and consistent with a mechanism of automatic, stimulus-driven feedback from higher-level visual areas.
Importancia del cuy en la región altoandina de la provincia de Huaral
Authors: Van Dalen Luna Pieter
Published: March 2020

El presente artículo presenta un panorama histórico sobre la importancia del cuy en las comunidades campesinas de la cuenca alta del río Chancay-Huaral. Esta importancia se mantiene vigente desde el periodo prehispánico del Intermedio Tardío (cultura Atavillos), tal como se aprecia en las evidencias arqueológicas recuperadas en sitios como Rupac, Marca Piche, Purunmarca y Araro; sitios investigados con excavaciones en los últimos cinco años. Las fuentes etnohistóricas refieren también la importancia de este animal en las comunidades de indígenas de los diferentes curatos. En la actualidad, la importancia del cuy se mantiene vigente en las comunidades altoandinas de la provincia de Huaral, con fines medicinales y alimenticios.
Alteraciones climáticas, haciendas y vida social de los negros esclavos y libertos en Piura: 1791-1823
Authors: Espinoza Claudio César
Published: March 2020

A partir de varios procesos judiciales ubicados en el Archivo Regional de Piura, sobre el impacto y la destrucción de los campos de cultivo y de pastoreo de haciendas y tierras de labranza por la fuerza de las lluvias e inundaciones y de los ciclos de años secos, se muestra la existencia y la dinámica social de la población negra que habita dentro y fuera de la ciudad de San Miguel de Piura en un contexto político de crisis de la dominación virreinal. Se examina la resistencia social de una población que sobrevive en las orillas de los ríos de la costa y la sierra de Piura, convertidos en labradores o colonos para producir granos y carnes para el abasto de la ciudad de Piura. Se analiza la constitución del cimarronaje y los palenques en los montes de algarrobo y zapote en los alrededores de la ciudad y los interiores de la gran propiedad terrateniente. En suma, se detalla la compleja vida social de los negros esclavos y libertos frente a los ciclos de sequías y lluvias, incendios y esterilidades en las tierras de haciendas ubicadas entre Olmos y Tambogrande, y entre Pabur y la ciudad de San Miguel de Piura entre 1791-1823.
Democracia y participación comunitaria en los servicios de salud
Authors: León Pretel Pricila
Published: March 2020

El artículo da cuenta de la participación comunitaria en la cogestión de los servicios de salud en la Comunidad Local de Administración de Salud (CLAS) San Martín de Porres. El objetivo de la investigación ha sido identificar los logros de la participación ciudadana en relación a la representatividad, elemento principal en la democratización y descentralización de los servicios de salud en el Perú. La metodología comprende: observación participante, encuesta a 107 pobladores del asentamiento humano mediante cuestionario, entrevista estructurada a 3 presidentes de la CLAS San Martín de Porres y análisis de experiencias a nivel nacional. Los resultados muestran que la política focalizada, implementada por el Estado desde 1994, no promociona la participación democrática de la población en los servicios de salud. La participación es controlada y dirigida a buscar eficiencia y equidad en la gestión de los servicios de salud, mas no el ejercicio democrático como finalidad. En la práctica se constata que la forma como ha sido diseñada la política de salud no garantiza dicha participación.
Relaciones de género y condiciones laborales en el sector productivo del banano orgánico en Sullana, Piura
Authors: Vásquez Zamora Guiomar
Published: March 2020

Desde hace 19 años asociaciones de agricultores de la provincia de Sullana vienen produciendo y exportando banano orgánico certificados por el Comercio Justo para Europa, Asia y Estados Unidos. En este marco contextual el presente artículo analiza cómo están cambiando las relaciones de género, expresadas en la división sexual del trabajo, si la incorporación de las mujeres al empleo asalariado del banano orgánico ha generado su empoderamiento; así como conocer si las condiciones laborales se definen por la cultura y las leyes laborales. Este artículo presenta los resultados de la Tesis - 2016 - UNMSM, con información actualizada al 2019, denominada: Relaciones de género y condiciones laborales de trabajadores y trabajadoras del banano orgánico de los centros poblados de Huangalá y San Vicente de Piedra Rodada, Sullana, Piura, 2010-2012.
The Dynamic Poetics in the Text History of Lermontov’s Poem “The Dream”
Authors: Kiseleva Irina A. , Potashova Ksenia A.
Published: March 2020

The article focuses on the analysis of the poetic genesis of Lermontov’s poem “The Dream” (1841) that manifests itself in the author’s corrections in the rough copy and in the clean one. There was carried out a reconstruction of the poet’s creative process, of his work on the contexture and the creation of a completed artistic image. The article presents the transcription of the poem’s rough and clean copies including alterations and symbols of the manuscript. It has been proved that while the first versions in the main text identify three dreams, the final version keeps only two of them. In the course of his work on the text the poet chooses not to introduce the image of a dream into the first poem, but makes it clear that everything is happening in the dream only by means of the title. This technique increases the reality of the given image. In the analysis of the poem’s dynamic poetics a special emphasis is made on the registration of the landscape details changes due to which the poet conveys his perception of the natural world and his place in it as a body and soul creature. The narrator’s feelings of desolation and abandonment in the natural world get worse from the rough copy to the clean one, and at the same time grows his anxiety for the unanimity with his mistress who, as the hero himself, has a spiritual sight. The capacity of the characters for empathy and the experience of bodily death assert the poet’s faith in the immortality of the soul.
“The Escape in the Desert” in Book Culture and Literature of Pre-Peter Russia
Authors: Isachenko Tatiana A.
Published: March 2020

 The motif of “the escape from paradise” has recently become one more time the subject of historical poetics. This motif is opposed to “the expulsion from paradise” accepted in Western literature. In the perception of scholars the motif of “the escape from paradise” in 19th century literature took a paradoxical form of “loneliness” (Dmitriev, Pushkin, Ostrovsky and Batyushkov) and then was designated as a “moving” model of a Russian man’s life who escapes from Paradise — a “homeostatic” society (L. N. Gumilev). The transformation of the motif from a “stable” model to a “moving” one led to formation of a new Russian character — a “homeless wanderer” mentioned by F. M. Dostoevsky in his “Pushkin Speech”. The article puts forward a thesis that under the influence of wandering a part of Russian society feel inclined for Old Russian forms of world outlook that incites person’s searches for life paradise in his own soul. This trend appears in the pilgrimage and theological literature of the 19th century. The transformation of the ratio between the “stable” and the “moving” towards the Old Russian ideal of wandering brings man to the saving paths of evangelical commandments. The theme of “escape in the desert” is closely related to the theme of “Mental Paradise”. In this regard, the key plot of the popular collection “Mental Paradise” popular in the 17th century and released in Wallay Iversky Monastery in 1658–1659 is considered. Based on the manuscripts the article shows how the motives of “Paradise” and “escape in the desert” having preceded the trends and having been developed in the 19th century leading to the prosperity of pilgrimage literature, are presented in literature of pre-Peter Russia.
The Native and the Universal in the “Dead Souls” by N. V. Gogol: A Parafrastic Context of Understanding
Authors: Esaulov Ivan A.
Published: March 2020

Based on the material of “Dead Souls”, the problem of the correlation of the “native” and the “universal” is considered. The author of the article highlights the special paraphrastic aspect of the interpretation of Russian classical literature, which includes both Western European aesthetic landmarks and the Orthodox cultural tradition, emphasizing their interweaving and mutual influence. In this aspect, the need to restore the full version of the name of Gogol’s poem is argued. The semantics of the cover of a separate edition of “Dead Souls” is analyzed. The author traces the paraphrastic context of the poem, referring to Dante’s “Divine Comedy”, which does not come down to motives, reminiscences, plot coincidences, but actualizes the unified Christian meaning of the Easter end of the earthly path, interpreted differently within the framework of Catholic and Orthodox cultural traditions. The semantics of the final Easter transformation of the “native” horizontal of Russia into the spiritual vertical of holy Russia in “Dead Souls” is revealed.
The Motifs of Searching for a Sense of Being in the Plot of the Novel by Ivan A. Bunin “The Life of Arseniev”
Authors: Kovalyova Tat’yana N.
Published: March 2020

The article focuses on the study of the role of the motifs in the development of the plot of Ivan A. Bunin’s novel “The Life of Arseniev”. Investigating the early stages of spiritual formation of the main character of the novel, the author of the article highlights the motifs of loneliness, the feeling of senseless of an imperfect existence, the aspiration to understand the meaning of all things, the highest sense of being, to find the source and sense of an existential despondency — longing for God. The aspiration to find unshakable and eternal values brings Arseniev about to take the unusual road, that is why the motifs of wanderings, encircling and pilgrimage have a significant role in the plot of the novel. The aimless wandering of Arseniev is a reflection of the fact that he has not yet found the highest sense of being, and is opposed to the motif of wandering as a conscious choice of the person, who establishes a certain truth by his own conscious way, that is why the meaning of the pilgrimage and such Christian images as a temple, church, cathedral, monastery, pilgrim, saints attests to the hero’s search for God and for the way to Him. Arseniev’s searches are conditioned by his strivings for an inmost soul that a human soul always imagines, that is by his longing for God, his desire to find the highest sense of being, a true path as the path to God. This conclusion is confirmed by the path of life of the main character which includes the interrelation of motifs of search of a sense and purpose of life, the right path, wanderings, encircling, pilgrimage and also the main iconic images (temple, monastery).
A Three-Dimensional Non-Local Quantum Vacuum as the Origin of Photons
Authors: Fiscaletti D. , Sorli A.
Published: March 2020

A model of a three-dimensional quantum vacuum defined by the processes of creation/annihilation of quanta corresponding to elementary energy density fluctuations is proposed. In it, a photon is not a primary physical reality but emerges itself as a special state of the three-dimensional quantum vacuum. In this model, the three-dimensional quantum vacuum has a ground state which acts as a “cosmic reservoir” of photons, which emits and absorbs photons and Planck’s law of the spectral distribution of the energy radiated by a black body derives from the fundamental processes in the three-dimensional quantum vacuum, in particular, in the context of a quantization volume responsible for the appearance of photons. Finally, the idea of the Lamb shift of hydrogenoid atoms as a phenomenon determined by the ground state of the quantum vacuum which acts as a reservoir of photons is explored.
Influence of Spatial Inhomogeneity on the Formation of Chaotic Modes at the Self-Organization Process
Authors: Liashenko Z. M. , Lyashenko I. A.
Published: March 2020

The Lorentz system of equations, in which gradient terms are taken into account, has been solved numerically. Three fundamentally different modes of evolution are considered. In the first mode, the spatial distribution of the order parameter permanently changes in time, and domains of two types with positive and negative order parameter values are formed. In the second mode, the order parameter distribution is close to the stationary one. Finally, in the third mode, the order parameter is identical over the whole space. The dependences of the average area of domains, their number, and their total area on the time are calculated in the first two cases. In the third case, the contribution of gradient terms completely vanishes, and a classical Lorenz attractor is realized.